Compound
methylene blue
A compound consisting of dark green crystals or crystalline powder, having a bronze-like luster. Solutions in water or alcohol have a deep blue color. Methylene blue is used as a bacteriologic stain and as an indicator. It inhibits guanylate cyclase, and has been used to treat cyanide poisoning and to lower levels of methemoglobin.
Studied for
9 endpoints · 13 findings · 9 papers · 4 null
- All-cause mortalitylowersEvidence strength: strong. Randomised human trials or their synthesis, with the effect's size and interval recorded and no recorded weakness outstanding.
- Hospital length of staylowersEvidence strength: strong. Randomised human trials or their synthesis, with the effect's size and interval recorded and no recorded weakness outstanding.
- Intensive care unit length of staylowersEvidence strength: strong. Randomised human trials or their synthesis, with the effect's size and interval recorded and no recorded weakness outstanding.
- Blood haemoglobin concentrationno detected effectEvidence strength: moderate. Human evidence with one recorded weakness, or capped at moderate by its design or by unread numbers.
- Duration of mechanical ventilationlowersEvidence strength: moderate. Human evidence with one recorded weakness, or capped at moderate by its design or by unread numbers.
Structure
An organic chloride salt having 3,7-bis(dimethylamino)phenothiazin-5-ium as the counterion. A commonly used dye that also exhibits antioxidant, antimalarial, antidepressant and cardioprotective properties.
No three-dimensional record for this entry.
- Formula
- C16H18N3S.Cl
- Mass
- 319.861 g/mol
- Charge
- 0
- InChIKey
- CXKWCBBOMKCUKX-UHFFFAOYSA-M
- SMILES
- CN(C)c1ccc2nc3ccc(N(C)C)cc3[s+]c2c1.[Cl-]
- Look it up
- ChEBIBy InChIKey
Identity from ChEBI. Not evidence.
What the evidence says
How to read these marks13 findings · 9 endpoints · 9 papers · 4 null · by evidence strength
What moved
9 findings
Decreases all-cause mortality
StrongEvidence strength: strong. Randomised human trials or their synthesis, with the effect's size and interval recorded and no recorded weakness outstanding.Findingreplicated ×2“We found that MB may reduce short-term mortality in patients with septic shock (RR 0.66 [95% CI, 0.47–0.94]), based on low-certainty evidence, downgraded for imprecision and risk of bias among the included trials.”
Quoted verbatim from Methylene Blue in Septic Shock: A Systematic Review and Meta-Analysis.. - Study
- meta-analysis
- Participants
- 260
- Population
- critically ill adults with septic shock; short-term mortality horizon, longest reported up to 60 d or in-hospital
Effect 0.66 risk ratio, 95% CI 0.47 to 0.94
Methylene Blue in Septic Shock: A Systematic Review and Meta-Analysis.2024PMID:38904978Permalink
Decreases hospital length of stay
StrongEvidence strength: strong. Randomised human trials or their synthesis, with the effect's size and interval recorded and no recorded weakness outstanding.Findingreplicated ×1“The results showed that MB reduced the hospital LOS in patients with distributive shock (MD: −1.97; 95% CI −3.82 to −0.11; p=0.04; table 2).”
Quoted verbatim from Effect of methylene blue on outcomes in patients with distributive shock: a meta-analysis of randomised controlled trials.. - Study
- meta-analysis
- Participants
- 111
- Population
- adults with distributive shock (septic shock, vasoplegic syndrome, ischaemia-reperfusion injury); secondary endpoint; 2 trials, n = 111
Effect -1.97 mean difference, 95% CI -3.82 to -0.11
Effect of methylene blue on outcomes in patients with distributive shock: a meta-analysis of randomised controlled trials.2024PMID:38216185Permalink
Decreases intensive care unit length of stay
StrongEvidence strength: strong. Randomised human trials or their synthesis, with the effect's size and interval recorded and no recorded weakness outstanding.Finding“The results showed that MB reduced the ICU LOS in patients with distributive shock (MD: −1.54; 95% CI −2.61 to −0.48; p=0.004; I2=25%; table 2).”
Quoted verbatim from Effect of methylene blue on outcomes in patients with distributive shock: a meta-analysis of randomised controlled trials.. - Study
- meta-analysis
- Participants
- 141
- Population
- adults with distributive shock (septic shock, vasoplegic syndrome, ischaemia-reperfusion injury); secondary endpoint; 3 trials, n = 141
Effect -1.54 mean difference, 95% CI -2.61 to -0.48
Effect of methylene blue on outcomes in patients with distributive shock: a meta-analysis of randomised controlled trials.2024PMID:38216185Permalink
Decreases duration of mechanical ventilation
ModerateEvidence strength: moderate. Human evidence with one recorded weakness, or capped at moderate by its design or by unread numbers.Finding“The results showed that compared with placebo, MB reduced the duration of mechanical ventilation during hospitalisation in patients with distributive shock (MD: −0.68; 95% CI −1.23 to −0.14; p=0.01; I2=0%; online supplemental figure S3).”
Quoted verbatim from Effect of methylene blue on outcomes in patients with distributive shock: a meta-analysis of randomised controlled trials.. - Study
- meta-analysis
- Population
- adults with distributive shock (septic shock, vasoplegic syndrome, ischaemia-reperfusion injury); secondary endpoint; 3 trials
Effect -0.68 mean difference, 95% CI -1.23 to -0.14
Effect of methylene blue on outcomes in patients with distributive shock: a meta-analysis of randomised controlled trials.2024PMID:38216185Permalink
Decreases hospital length of stay
ModerateEvidence strength: moderate. Human evidence with one recorded weakness, or capped at moderate by its design or by unread numbers.Findingreplicated ×1“Consequently, the mean length of hospital stay was significantly shorter for patients receiving MBI (3.80 ± 0.85 days) than for controls (5.43 ± 1.01 days; P <.001).”
Quoted verbatim from The effect of methylene blue infiltrating injection on anal pain after Milligan-Morgan surgery: A randomized controlled clinical study.. - Study
- RCT
- Participants
- 60
- Dose
- single intraoperative subcutaneous infiltration of 0.5-1 mL of 0.1% methylene blue per incision site, total not exceeding 5 mL
- Population
- adults with mixed haemorrhoids after Milligan-Morgan haemorrhoidectomy; secondary endpoint; reported in days; both arms received the same on-demand intravenous lornoxicam protocol
The effect of methylene blue infiltrating injection on anal pain after Milligan-Morgan surgery: A randomized controlled clinical study.2026PMID:41686620Permalink
Decreases all-cause mortality
Very limitedEvidence strength: very limited. Human evidence with major recorded weaknesses, or non-human, uncontrolled or unverified evidence.Findingreplicated ×2“The meta-analysis showed statistically significant reduction in mortality rates among septic shock patients treated with MB (mortality rate 0.52; 95% CI 0.38 to 0.66; P < .001).”
Quoted verbatim from Methylene Blue for Septic Shock: A Systematic Review and Meta-analysis of Randomized and Prospective Observational Studies.. - Study
- meta-analysis
- Population
- adult ICU patients with septic shock; pooled across 15 studies (5 RCT, 10 non-randomized)
Methylene Blue for Septic Shock: A Systematic Review and Meta-analysis of Randomized and Prospective Observational Studies.2026PMID:39574288Permalink
Show the remaining 3
Decreases incidence of postoperative delirium
Very limitedEvidence strength: very limited. Human evidence with major recorded weaknesses, or non-human, uncontrolled or unverified evidence.Finding“A total of 55 patients (17.5%) experienced POD, with a lower POD incidence in the methylene blue group than in the control group (11.5% vs. 23.6%, p = 0.005).”
Quoted verbatim from Intraoperative methylene blue infusion reduces postoperative delirium in patients undergoing pancreatic surgery: A randomized controlled clinical trial.. - Study
- RCT
- Dose
- methylene blue 2 mg/kg IV within 60 min after anesthetic induction, followed by 1 mg/kg IV within 30 min before end of surgery
- Population
- adult patients undergoing pancreatic surgery
Intraoperative methylene blue infusion reduces postoperative delirium in patients undergoing pancreatic surgery: A randomized controlled clinical trial.2025PMID:41176956Permalink
Decreases all-cause mortality
Very limitedEvidence strength: very limited. Human evidence with major recorded weaknesses, or non-human, uncontrolled or unverified evidence.Findingreplicated ×2“Nine out of the 11 included randomized trials reported mortality, which was significantly lower in the MB group (risk ratio, 0.60 [95% CI 0.43-0.84] p = 0.003), with findings confirmed in septic shock and cardiac surgery subgroups.”
Quoted verbatim from Methylene Blue Reduces Mortality in Critically Ill and Perioperative Patients: A Meta-Analysis of Randomized Trials.. - Study
- meta-analysis
- Population
- critically ill and perioperative adult patients; mortality at longest follow-up, pooled across randomized trials
Methylene Blue Reduces Mortality in Critically Ill and Perioperative Patients: A Meta-Analysis of Randomized Trials.2024PMID:37880041Permalink
Increases mean arterial pressure in vasodilatory shock
InsufficientEvidence strength: insufficient. Mechanistic inference, no evidence found, or evidence weakened below very limited.Finding“The MAP was significantly higher in the methylene blue-treated group starting 25 min after the amlodipine infusion (95% CI, 2–30) that was analyzed up until 60 minutes.”
Quoted verbatim from Efficacy of methylene blue in an experimental model of calcium channel blocker-induced shock.. - Study
- animal · not in humans
- Dose
- 2 mg/kg over 5 minutes at minutes 5, 30 and 60
- Population
- anaesthetised, ventilated Sprague-Dawley rats given an LD50 amlodipine infusion (17 mg/kg/hour) in both arms; MB or normal saline given at minutes 5, 30 and 60; MAP analysed from minute 25 to minute 60
Efficacy of methylene blue in an experimental model of calcium channel blocker-induced shock.2015PMID:25441767Permalink
What did not
4 findings
No detected effect on blood haemoglobin concentration
ModerateEvidence strength: moderate. Human evidence with one recorded weakness, or capped at moderate by its design or by unread numbers.FindingNull result“There were no differences between CQ and CQ-MB study groups in haemoglobin and haematocrit values over time in both the G6PD deficient and sufficient subgroups (Table 3).”
Quoted verbatim from Safety of the methylene blue plus chloroquine combination in the treatment of uncomplicated falciparum malaria in young children of Burkina Faso [ISRCTN27290841].. - Study
- RCT
- Duration
- 14 days
- Dose
- 0.5% MB solution 4 mg/kg/day for three days, plus chloroquine 25 mg/kg over three days
- Population
- children aged 6-59 months with uncomplicated falciparum malaria, Burkina Faso; chloroquine given to both arms; result stated for G6PD deficient and G6PD sufficient subgroups
Safety of the methylene blue plus chloroquine combination in the treatment of uncomplicated falciparum malaria in young children of Burkina Faso [ISRCTN27290841].2005PMID:16179085Permalink
No detected effect on haematocrit
ModerateEvidence strength: moderate. Human evidence with one recorded weakness, or capped at moderate by its design or by unread numbers.FindingNull result“There were no differences between CQ and CQ-MB study groups in haemoglobin and haematocrit values over time in both the G6PD deficient and sufficient subgroups (Table 3).”
Quoted verbatim from Safety of the methylene blue plus chloroquine combination in the treatment of uncomplicated falciparum malaria in young children of Burkina Faso [ISRCTN27290841].. - Study
- RCT
- Duration
- 14 days
- Dose
- 0.5% MB solution 4 mg/kg/day for three days, plus chloroquine 25 mg/kg over three days
- Population
- children aged 6-59 months with uncomplicated falciparum malaria, Burkina Faso; chloroquine given to both arms; result stated for G6PD deficient and G6PD sufficient subgroups
Safety of the methylene blue plus chloroquine combination in the treatment of uncomplicated falciparum malaria in young children of Burkina Faso [ISRCTN27290841].2005PMID:16179085Permalink
No detected effect on systemic vascular resistance
Very limitedEvidence strength: very limited. Human evidence with major recorded weaknesses, or non-human, uncontrolled or unverified evidence.FindingNull result“Pooled analysis revealed that mean arterial pressure, systemic vascular resistance, heart rate, and hospital stay were not statistically significant in methylene blue administration compared to control.”
Quoted verbatim from Methylene blue for vasoplegic syndrome in cardiopulmonary bypass surgery: A systematic review and meta-analysis.. - Study
- meta-analysis
- Population
- adult patients with vasoplegic syndrome, methylene blue as adjunct treatment compared to control treatments
Methylene blue for vasoplegic syndrome in cardiopulmonary bypass surgery: A systematic review and meta-analysis.2021PMID:33653154Permalink
No detected effect on mean arterial pressure in vasodilatory shock
Very limitedEvidence strength: very limited. Human evidence with major recorded weaknesses, or non-human, uncontrolled or unverified evidence.FindingNull result“Pooled analysis revealed that mean arterial pressure, systemic vascular resistance, heart rate, and hospital stay were not statistically significant in methylene blue administration compared to control.”
Quoted verbatim from Methylene blue for vasoplegic syndrome in cardiopulmonary bypass surgery: A systematic review and meta-analysis.. - Study
- meta-analysis
- Population
- adult patients with vasoplegic syndrome, methylene blue as adjunct treatment compared to control treatments
Methylene blue for vasoplegic syndrome in cardiopulmonary bypass surgery: A systematic review and meta-analysis.2021PMID:33653154Permalink
What the reference databases state
Statements
1 statement
1 statement · 1 reference database · Subject: methylene blue · Sources: ChEBI
- methylene blue is converted to 3,7-bis(dimethylamino)phenothiazin-5-iumCompoundChEBI CHEBI:6872Inferred only
Registered, and not reported
- Source
- ClinicalTrials.gov
- Intervention
- methylene blue
- Status
- Completed, terminated or suspended
- Results posted
- No
Trials without posted results
156 trials
156 registered trials without posted results · Overdue (FDAAA 801): 108 · Showing 120 of 156
108 past the window12 within it, or no actual date
- NCT05545787completed2026-04-15a university or hospital
- NCT07189858completed2026-04-10industry
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- NCT07040020completed2026-03-26a university or hospital
- NCT06900140completed2026-03-06a university or hospital
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- NCT07040540completed2025-11-01a university or hospital
- NCT05894954completed2025-10-31a university or hospital
- NCT06532240completed2025-10-24a university or hospital
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- NCT07254260completed2025-09-30a university or hospitalpast the reporting window
- NCT01847612completed2025-07-03a university or hospitalpast the reporting window
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- NCT04362774terminated— Study was stopped after 1 site completed follow-up of enrolled patients, no other sites were opened in the study.2023-02-21industrypast the reporting window
- NCT05797818completed2023-02-08industrypast the reporting window
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- NCT02931292completed2015-06a university or hospitalpast the reporting window
Papers screened
1,928 papers
- Compound
- methylene blue
- Screened
- 1,928
- Admitted
- 8
- Discarded
- 1,321
- Not read
- 599
- Showing
- 200 of 1,928
Read and discarded1,321 papers
- PMID:10715674cited by PMID:19415120; not about the subject it would be filed under2026-10-12
- PMID:11262208cited by PMID:19415120; not about the subject it would be filed under2026-10-12
- PMID:14723987cited by PMID:19415120; not about the subject it would be filed under2026-10-12
- PMID:1484548cited by PMID:19415120; not about the subject it would be filed under2026-10-12
- PMID:15106149cited by PMID:19415120; not about the subject it would be filed under2026-10-12
- PMID:17889242cited by PMID:19415120; not about the subject it would be filed under2026-10-12
- PMID:17925871cited by PMID:19415120; not about the subject it would be filed under2026-10-12
- PMID:17949807cited by PMID:19415120; not about the subject it would be filed under2026-10-12
- PMID:17988171cited by PMID:19415120; not about the subject it would be filed under2026-10-12
- PMID:18613962cited by PMID:19415120; not about the subject it would be filed under2026-10-12
- PMID:8626269cited by PMID:19415120; not about the subject it would be filed under2026-10-12
- PMID:8642959cited by PMID:19415120; not about the subject it would be filed under2026-10-12
and 1,309 more.
Not read yet599 papers
- PMID:156550112026-10-12
- PMID:75108152026-10-12
- PMID:145562842026-10-10
- PMID:203480932026-10-10
- PMID:229528272026-10-10
- PMID:94594442026-10-10
- PMID:176140982026-10-09
- PMID:193845992026-10-09
- PMID:207110662026-10-09
- PMID:258489572026-10-09
- PMID:250798102026-10-09
- PMID:110749032026-10-09
and 587 more.
Measured, not recorded
- Compound
- methylene blue
- Endpoints measured
- 669 endpoints
- Recorded as a finding
- No
Show what was measured
Caretakers reporting no problem with CQ-MB treatment
n = 181
94/181 stated that they had no problem with the CQ-MB treatment, while 83/181 mentioned minor difficulties concerning the washing procedure of the stained clothes
PMID:16179085 · one of two readings recorded this
Change in haematocrit, baseline to day 14
no effect, p = 0.979, n = 30
Changes in HCT [%] (N = 30) | 1.3 ± 3.3 | 1.4 ± 3.4 | [-3.2; 3.0], pWMW = 0.979
PMID:16179085 · one of two readings recorded this
Change in haematocrit, baseline to day 14
no effect, p = 0.698, n = 187
Changes in HCT [%] (N = 187) | 1.9 ± 3.8 | 1.2 ± 5.1 | [-1.1; 2.5], pWMW = 0.698
PMID:16179085 · one of two readings recorded this
Change in haematocrit, baseline to day 4
no effect, p = 0.259, n = 30
Changes in HCT [%] (N = 30) | 1.3 ± 4.1 | -1.4 ± 3.9 | [-0.9; 6.4], pWMW = 0.259
PMID:16179085 · one of two readings recorded this
Change in haematocrit, baseline to day 4
no effect, p = 0.871, n = 193
Changes in HCT [%] (N = 193) | -1.2 ± 2.8 | -1.1 ± 4.1 | [-1.5; 1.3], pWMW = 0.871
PMID:16179085 · one of two readings recorded this
Change in haemoglobin, baseline to day 3
no effect, p = 0.126, n = 26
Changes in Hb [g/dl] (N = 26) | 0.4 ± 1.2 | -0.7 ± 1.5 | [-0.4; 2.5], pWMW = 0.126
PMID:16179085 · one of two readings recorded this
Change in haemoglobin, baseline to day 3
no effect, p = 0.906, n = 176
Changes in Hb [g/dl] (N = 176) | -0.5 ± 1.3 | -0.4 ± 1.6 | [-0.6; 0.6], pWMW = 0.906
PMID:16179085 · one of two readings recorded this
Clinical failure (CF)
no effect, p = 0.348
CF (pChi = 0.348, OR = 0.68, 95% CI [0.34; 1.35])
PMID:16179085 · one of two readings recorded this
Clinical failure (CF)
Clinical failure (CF) | 22 (53.7%) | 73 (44.0%)
PMID:16179085 · one of two readings recorded this
Drug administration needing repetition after rejection by children
(1/45 CQ, 35/181 CQ-MB)
PMID:16179085 · one of two readings recorded this
Drug repetition needed with MB solution, children under 2 years versus older
increases, p = 0.0001
Application of the bitter-tasting 0.5% MB solution was more difficult in children <2 years compared to older children (26/61 versus 9/120, pChi < 0.0001)
PMID:16179085 · one of two readings recorded this
Early treatment failure (ETF)
no effect, p = 0.444
ETF (pChi = 0.444, OR = 0.71, 95% CI [0.34; 1.45])
PMID:16179085 · one of two readings recorded this
Early treatment failure (ETF)
Early treatment failure (ETF) | 15 (36.6%) | 48 (28.9%)
PMID:16179085 · one of two readings recorded this
incidence of observed or self-reported adverse events over 14 days
no effect, no marked difference between CQ and CQ-MB
Not recorded as a finding: Adverse events were not attributed to the study product, so the ungraded adverse-reaction node's definition does not fit; the oral supplement node does not fit a drug trial.
There was also no marked difference in the incidence of adverse events between the two groups (Table 2).
PMID:16179085 · one of two readings recorded this
Late clinical failure (LCF)
no effect, p = 0.938
LCF (pChi = 0.938, OR = 0.86, 95% CI [0.34; 2.16])
PMID:16179085 · one of two readings recorded this
Late clinical failure (LCF)
Late clinical failure (LCF) | 7 (17.1%) | 25 (15.1%)
PMID:16179085 · one of two readings recorded this
Late parasitological failure (LPF)
no effect, p = 1
LPF (pChi= 1.0, OR = 1.04, 95% CI [0.37; 2.95])
PMID:16179085 · one of two readings recorded this
Late parasitological failure (LPF)
Late parasitological failure (LPF) | 5 (12.2%) | 21 (12.9%)
PMID:16179085 · one of two readings recorded this
Median fever clearance time
no effect, p = 0.725
The median fever clearance time in the fully compliant patients for group CQ compared with CQ-MB was 8.0 and 8.8 hours respectively (pWMW = 0.725)
PMID:16179085 · one of two readings recorded this
Median parasite clearance time
no effect, p = 0.14
the median parasite clearance time was 91.3 and 86.4 hours respectively (pWMW = 0.140)
PMID:16179085 · one of two readings recorded this
Severe haemolysis in G6PD deficient children given methylene blue
no effect, n = 24
There was no case of severe haemolysis within the group of 24 G6PD deficient children who received MB (one-sided exact 95% CI [0%, 11.73%])
PMID:16179085 · one of two readings recorded this
Treatment failure (clinical failure), per protocol
n = 166
73/166 (44.0%, 95% CI [36.3%; 51.9%]) in group CQ-MB (48 ETF, 25 LCF)
PMID:16179085 · one of two readings recorded this
Treatment failure (clinical failure), per protocol
n = 41
22/41 (53.7%, 95% CI [37.4%; 69.3%]) treatment failures in group CQ (15 ETF, 7 LCF)
PMID:16179085 · one of two readings recorded this
mean arterial pressure and systemic vascular resistance in septic shock following methylene blue administration, and vasopressor requirement, narratively reviewed with no meta-analysis performed
increases
Not recorded as a finding: a review that discusses its trials without pooling them
Methylene blue administration in patients with septic shock increases mean arterial pressure and systemic vascular resistance while decreasing vasopressor requirements.
PMID:17095500 · one of two readings recorded this
mean arterial pressure, systemic vascular resistance and vasopressor requirement in septic shock patients receiving methylene blue, narrative systematic review, no meta-analysis performed
increases
Not recorded as a finding: a review that discusses its trials without pooling them
Methylene blue administration in patients with septic shock increases mean arterial pressure and systemic vascular resistance while decreasing vasopressor requirements.
PMID:17095500 · one of two readings recorded this
In vivo sentinel node counts versus injected dose
increases, p = 0.0231, n = 12
The in vivo nodal counts were dose-dependent (r = 0.67, and P = 0.0231)
PMID:17245184 · one of two readings recorded this
Node counts, in vivo range
the in vivo node counts ranged from 0 to 1228 cps, while ex vivo counts ranged from 0 to 1516 cps
PMID:17245184 · one of two readings recorded this
Radioactivity at tumor injection site versus injected dose
increases, p = 0.0002, n = 12
Radioactivity at the tumor injection site [counts per second (cps) averaged over 10 seconds] ranged from 3346 to 47,300 cps and was highly dose-dependent (r = 0.90, P = 0.0002)
PMID:17245184 · one of two readings recorded this
Sentinel node detection
n = 12
Sentinel nodes were detected in 11 of 12 patients, with a low-dose 200 microCi patient being the single exception
PMID:17245184 · one of two readings recorded this
Sentinel nodes detected per patient
n = 12
The number of sentinel nodes detected per patient ranged from 0 to 3 (mean = 1.66 nodes/case)
PMID:17245184 · one of two readings recorded this
ACPR at D14, with PCR correction
- with PCR-based correction | 53 (86.9%) | 58 (100.0%) | 61 (100.0%) | <0.001 | 0.004 | 0.003 | 1.000
PMID:18286187 · one of two readings recorded this
ACPR at D14, without PCR correction
- without PCR-based correction | 49 (80.3%) | 58 (100.0%) | 60 (98.4%) | <0.001 | <0.001 | 0.001 | 0.327
PMID:18286187 · one of two readings recorded this
ACPR at D28, with PCR correction
- with PCR-based correction | 38 (62.3%) | 55 (94.8%) | 50 (82.0%) | <0.001 | <0.001 | 0.015 | 0.030
PMID:18286187 · one of two readings recorded this
ACPR at D28, without PCR correction
- without PCR-based correction | 17 (27.9%) | 46 (79.3%) | 40 (65.6%) | <0.001 | <0.001 | <0.001 | 0.094
PMID:18286187 · one of two readings recorded this
Early treatment failure (ETF)
no effect, p = 1
ETF | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 1.000 | 1.000 | 1.000 | 1.000
PMID:18286187 · one of two readings recorded this
Late parasitological failure at D14, with PCR correction
p = 0.018
- with PCR-based correction | 4 (6.6%) | 0 (0.0%) | 0 (0.0%) | 0.018 | 0.047 | 0.042 | 1.000
PMID:18286187 · one of two readings recorded this
Late parasitological failure at D14, without PCR correction
p = 0.011
- without PCR-based correction | 6 (9.8%) | 0 (0.0%) | 1 (1.6%) | 0.011 | 0.014 | 0.052 | 0.327
PMID:18286187 · one of two readings recorded this
Late parasitological failure at D28, with PCR correction
p = 0.038
- with PCR-based correction | 13 (21.3%) | 3 (5.2%) | 9 (14.8%) | 0.038 | 0.010 | 0.346 | 0.083
PMID:18286187 · one of two readings recorded this
Late parasitological failure at D28, without PCR correction
p = 0.043
- without PCR-based correction | 24 (39.3%) | 11 (19.0%) | 16 (26.2%) | 0.043 | 0.015 | 0.123 | 0.344
PMID:18286187 · one of two readings recorded this
Late treatment failure at D14, with PCR correction
p = 0.018
- with PCR-based correction | 4 (6.6%) | 0 (0.0%) | 0 (0.0%) | 0.018 | 0.047 | 0.042 | 1.000
PMID:18286187 · one of two readings recorded this
Late treatment failure at D14, without PCR correction
p = 0.002
- without PCR-based correction | 6 (9.8%) | 0 (0.0%) | 0 (0.0%) | 0.002 | 0.014 | 0.012 | 1.000
PMID:18286187 · one of two readings recorded this
Late treatment failure at D28, with PCR correction
- with PCR-based correction | 10 (16.4%) | 0 (0.0%) | 2 (3.3%) | <0.001 | 0.001 | 0.015 | 0.164
PMID:18286187 · one of two readings recorded this
Late treatment failure at D28, without PCR correction
- without PCR-based correction | 20 (32.8%) | 1 (1.7%) | 5 (8.2%) | <0.001 | <0.001 | <0.001 | 0.107
PMID:18286187 · one of two readings recorded this
Parasitaemia until day 2
- until D2 | 7 (11.5%) | 37 (63.8%) | 13 (21.3%) | <0.001 | <0.001 | 0.081 | <0.001
PMID:18286187 · one of two readings recorded this
Parasitaemia until day 3
- until D3 | 1 (1.6%) | 10 (17.2%) | 3 (4.9%)
PMID:18286187 · one of two readings recorded this
Re-infection with exclusively new genotypes during 28 days
increases, p = 0.02
exclusively new genotypes, i.e. re-infections, were more frequent with MB-AS (34.4%; 21/61) than with MB-AQ (15.5%; 9/58; p = 0.02) or AQ-AS (16.4%; 10/61; p = 0.02)
PMID:18286187 · one of two readings recorded this
P. falciparum gametocyte carrier prevalence on follow-up days 2, 3, 7 and 14, thick blood film microscopy
decreases, both MB-AS and MB-AQ significantly more effective than AS-AQ during follow-up; comparator AS-AQ is an active drug, MB given in combination with artesunate or amodiaquine
Not recorded as a finding: this platform holds no node for the endpoint
However, both MB-AS and MB-AQ were significantly more effective in this regard than AS-AQ during follow-up (Table 2).
PMID:19415120 · one of two readings recorded this
P. falciparum gametocyte prevalence
no effect, p = 0.168
- Prevalence (95% CI) | 9 (14.8% [7%; 26%]) | 7 (12.1% [4%; 20%]) | 15 (24.6% [14%; 37%]) | 0.168 | 0.790 | 0.255 | 0.100
PMID:19415120 · one of two readings recorded this
P. falciparum gametocyte prevalence
decreases, p = 0.035
- Prevalence (95% CI) | 0 [0%; 6%] | 0 [0%; 6%] | 4 (6.8% [2%; 16%]) | 0.035 | 0.119 | 0.110
PMID:19415120 · one of two readings recorded this
P. falciparum gametocyte prevalence
no effect, p = 0.35
- Prevalence (95% CI) | 4 (6.6% [2%; 16%]) | 7 (12.1% [5%; 23%]) | 9 (14.8% [7%; 26%]) | 0.350 | 0.355 | 0.240 | 0.790
PMID:19415120 · one of two readings recorded this
P. falciparum gametocyte prevalence
decreases, p = 0.002
- Prevalence (95% CI) | 2 (3.3%, [1%; 11%]) | 0 [0%; 6%] | 9 (14.8% [7%; 26%]) | 0.002 | 0.496 | 0.054 | 0.003
PMID:19415120 · one of two readings recorded this
P. falciparum gametocyte prevalence
decreases
- Prevalence (95% CI) | 0 [0%; 6%] | 0 [0%; 6%] | 11 (18.0% [9%; 30%]) | <.001 | <.001 | <.001
PMID:19415120 · one of two readings recorded this
P. falciparum gametocyte prevalence
no effect, p = 0.134
- Prevalence (95% CI) | 0 [0%; 34%] | 0 [0%; 41%] | 4 (26.7% [8%; 55%]) | 0.134 | 0.259 | 0.263
PMID:19415120 · one of two readings recorded this
P. falciparum gametocyte prevalence
no effect, p = 0.142
- Prevalence (95% CI) | 2 (22.2% [3%; 60%]) | 1 (14.3% [1%; 66%]) | 8 (53.3% [27%; 79%]) | 0.142 | 1.000 | 0.210 | 0.165
PMID:19415120 · one of two readings recorded this
P. falciparum gametocyte prevalence
decreases, p = 0.047
- Prevalence (95% CI) | 0 [0%; 34%] | 0 [0%; 41%] | 5 (33.3% [12%; 62%]) | 0.047 | 0.118 | 0.135
PMID:19415120 · one of two readings recorded this
P. falciparum gametocyte prevalence
decreases, p = 0.024
- Prevalence (95% CI) | 0 [0%; 34%] | 0 [0%; 41%] | 6 (40.0% [16%; 68%]) | 0.024 | 0.052 | 0.121
PMID:19415120 · one of two readings recorded this
P. falciparum gametocyte prevalence
no effect
- Prevalence | 0 [0%; 8%] | 0 [0%; 8%] | 0 [0%; 8%]
PMID:19415120 · one of two readings recorded this
P. falciparum gametocyte prevalence
no effect, p = 0.079
- Prevalence | 1 (2.0% [1%;11%]) | 0 [0%; 8%] | 4 (8.9% [2%; 21%]) | 0.079 | 1.000 | 0.186 | 0.117
PMID:19415120 · one of two readings recorded this
P. falciparum gametocyte prevalence
decreases, p = 0.02
- Prevalence | 0 [0%; 7%] | 0 [0%; 8%] | 4 (8.9% [2%; 21%]) | 0.020 | 0.049 | 0.117
PMID:19415120 · one of two readings recorded this
PCR-corrected adequate clinical and parasitological response
PCR-corrected rates of adequate clinical and parasitological response at day 28 of follow-up were 62% for MB-AS, 82% for AS-AQ and 95% for MB-AQ
PMID:19415120 · one of two readings recorded this
acute confusional state / serotonin syndrome incidence in patients receiving methylene blue infusion while on serotonergic drugs, systematic review of case reports
26 patients developed acute confusional state after MB infusion, 24 on an SRI and 1 on clomipramine, n = 26
Not recorded as a finding: this platform holds no node for the endpoint
The review identified nine case reports and two retrospective reviews; 26 patients developed an acute confusional state after MB infusion; 24 of these patients were taking an SRI, and 1 was taking clomipramine.
PMID:20484716 · one of two readings recorded this
diagnostic odds ratio for dysplasia
The meta-analysis demonstrated a pooled sensitivity of 83.3% (95% confidence interval (CI), 35.9-99.6%), specificity of 91.3% (95% CI, 43.8-100%), and DOR of 17.544 (95% CI, 1.245-247.14)
PMID:21073646 · one of two readings recorded this
pooled sensitivity for dysplasia
The meta-analysis demonstrated a pooled sensitivity of 83.3% (95% confidence interval (CI), 35.9-99.6%), specificity of 91.3% (95% CI, 43.8-100%), and DOR of 17.544 (95% CI, 1.245-247.14)
PMID:21073646 · one of two readings recorded this
pooled sensitivity
The other subgroup, which used indigo carmine dye spray, had overall higher sensitivity (0.930) and lower specificity (0.910)
PMID:21073646 · one of two readings recorded this
pooled sensitivity
their pooled sensitivity and specificity were 0.737 and 0.917, respectively
PMID:21073646 · one of two readings recorded this
pooled specificity for dysplasia
The meta-analysis demonstrated a pooled sensitivity of 83.3% (95% confidence interval (CI), 35.9-99.6%), specificity of 91.3% (95% CI, 43.8-100%), and DOR of 17.544 (95% CI, 1.245-247.14)
PMID:21073646 · one of two readings recorded this
pooled specificity
The other subgroup, which used indigo carmine dye spray, had overall higher sensitivity (0.930) and lower specificity (0.910)
PMID:21073646 · one of two readings recorded this
pooled specificity
their pooled sensitivity and specificity were 0.737 and 0.917, respectively
PMID:21073646 · one of two readings recorded this
parathyroidectomy cure rate (successful excision of abnormal parathyroid gland) comparing methylene blue and no-methylene blue arms, pooled across observational studies
increases, median cure rate 100% (methylene blue arm) vs 98% (no-methylene-blue arm)
Not recorded as a finding: this platform holds no node for the endpoint
The median cure rates in the methylene blue and no-methylene blue arms were 100 and 98 per cent respectively.
PMID:22961511 · one of two readings recorded this
mean number of detected lymph nodes per patient
increases, p = 0.001
there were significantly more lymph nodes detected in group B than in group C (23.8 ± 6.9 vs 12.2 ± 3.2, P < 0.001)
PMID:23155345 · one of two readings recorded this
mean number of detected lymph nodes per patient
increases, p = 0.001
The mean number of detected lymph nodes per patient was significantly higher in group A than in group C (26.8 ± 8.4 vs 12.2 ± 3.2, P < 0.001)
PMID:23155345 · one of two readings recorded this
mean number of detected lymph nodes per patient
no effect
However, there was no significant difference between group A and group B
PMID:23155345 · one of two readings recorded this
mean number of lymph nodes detected per patient in colorectal cancer specimens
increases, 23.8 vs 12.2 lymph nodes per patient, group B vs group C, n = 60
Not recorded as a finding: the compound was a reagent, not an exposure
Similarly, there were significantly more lymph nodes detected in group B than in group C (23.8 ± 6.9 vs 12.2 ± 3.2, P < 0.001).
PMID:23155345 · one of two readings recorded this
number of metastatic lymph nodes dissected
no effect
There were 50, 46 and 32 metastatic lymph nodes dissected in 13 patients of group A, 10 patients of group B and 11 patients of group C
PMID:23155345 · one of two readings recorded this
number of metastatic lymph nodes dissected
no effect
There were 50, 46 and 32 metastatic lymph nodes dissected in 13 patients of group A, 10 patients of group B and 11 patients of group C
PMID:23155345 · one of two readings recorded this
number of metastatic lymph nodes dissected
no effect
There were 50, 46 and 32 metastatic lymph nodes dissected in 13 patients of group A, 10 patients of group B and 11 patients of group C
PMID:23155345 · one of two readings recorded this
patients with insufficient detected lymph nodes (< 12)
n = 11
Eleven of the 60 patients had insufficient number of detected lymph nodes (< 12)
PMID:23155345 · one of two readings recorded this
total number of detected lymph nodes
The total number of detected lymph nodes was 535, 476 and 223 in the three groups, respectively
PMID:23155345 · one of two readings recorded this
total number of detected lymph nodes
The total number of detected lymph nodes was 535, 476 and 223 in the three groups, respectively
PMID:23155345 · one of two readings recorded this
total number of detected lymph nodes
The total number of detected lymph nodes was 535, 476 and 223 in the three groups, respectively
PMID:23155345 · one of two readings recorded this
cardiac index
no effect, p = 0.2
Only two studies reported the values of cardiac index with a non-statistically significant improvement in the methylene blue group (mean difference = 0.76 L/min/m2; 95% CI, ? 0.32 to 1.84; P for effect = 0.2)
PMID:23432501 · one of two readings recorded this
mean arterial pressure 1 hour after study drug
increases, p = 0.01
Mean arterial pressure rose in patients receiving methylene blue (weighted mean difference = 6.93 mmHg; 95% CI, 1.67 to 12.18; P for effect = 0.01; P for heterogeneity = 0.17; I2 = 41%)
PMID:23432501 · one of two readings recorded this
mortality at longest follow-up
no effect, p = 0.5
The overall mortality rate was 16% (14/88) among methylene blue treated patients and 23% (20/86) in the control group (odds ratio = 0.65; 95% CI, 0.21 to 2.08; P for effect = 0.5)
PMID:23432501 · one of two readings recorded this
incidental contextual memory
increases
Methylene blue's enhancement of contextual memory was unrelated to initial or posttraining claustrophobic fear
PMID:25018057 · one of two readings recorded this
peak fear at 1-month follow-up (fear renewal)
decreases
participants displaying low end fear posttraining showed significantly less fear at the 1-month follow-up if they received methylene blue posttraining compared with placebo
PMID:25018057 · one of two readings recorded this
peak fear at 1-month follow-up (fear renewal)
increases
participants displaying moderate to high levels of posttraining fear tended to fare worse at the follow-up if they received methylene blue posttraining
PMID:25018057 · one of two readings recorded this
acute depressive-like behavior, cerebral edema, hippocampal inflammatory gene expression and microglial activation in mice after midline fluid percussion injury, intravenous MB versus vehicle
decreases, development of acute depressive-like behavior attenuated at 7 d post injury
Not recorded as a finding: this platform holds no node for the endpoint
Nonetheless, MB attenuated the development of acute depressive-like behavior at 7 d post injury.
PMID:25070744 · one of two readings recorded this
acute depressive-like behavior
decreases
Nonetheless, MB attenuated the development of acute depressive-like behavior at 7 d post injury.
PMID:25070744 · one of two readings recorded this
behavioral recovery
increases
Here we show that immediate MB infusion (intravenous; 15-30 minutes after TBI) reduced cerebral edema, attenuated microglial activation and reduced neuroinflammation, and improved behavioral recovery after midline fluid percussion injury in mice.
PMID:25070744 · one of two readings recorded this
body weight and motor coordination reductions
no effect
MB intervention did not prevent TBI-induced reductions in body weight or motor coordination 1-7 d post injury.
PMID:25070744 · one of two readings recorded this
cerebral edema
decreases
Here we show that immediate MB infusion (intravenous; 15-30 minutes after TBI) reduced cerebral edema, attenuated microglial activation and reduced neuroinflammation, and improved behavioral recovery after midline fluid percussion injury in mice.
PMID:25070744 · one of two readings recorded this
hippocampal edema and inflammatory gene expression
decreases
Specifically, TBI-associated edema and inflammatory gene expression in the hippocampus were significantly reduced by MB at 1 d post injury.
PMID:25070744 · one of two readings recorded this
hippocampal edema, microglial activation, IL-1beta and TNF-alpha gene expression in enriched microglia/macrophages, and depressive-like behavior in mice after midline fluid percussion injury; body weight and motor coordination
decreases, MB attenuated TBI-induced inflammatory gene expression (IL-1beta, TNF-alpha) in enriched microglia/macrophages 1 d post injury
Not recorded as a finding: this platform holds no node for the endpoint
Moreover, MB intervention attenuated TBI-induced inflammatory gene expression (interleukin [IL]-1β, tumor necrosis factor α) in enriched microglia/macrophages 1 d post injury.
PMID:25070744 · one of two readings recorded this
IL-1β mRNA in LPS-activated BV2 microglia
decreases
Cell culture experiments with lipopolysaccharide-activated BV2 microglia confirmed that MB treatment directly reduced IL-1β and increased IL-10 messenger ribonucleic acid in microglia.
PMID:25070744 · one of two readings recorded this
IL-10 mRNA in LPS-activated BV2 microglia
increases
Cell culture experiments with lipopolysaccharide-activated BV2 microglia confirmed that MB treatment directly reduced IL-1β and increased IL-10 messenger ribonucleic acid in microglia.
PMID:25070744 · one of two readings recorded this
inflammatory gene expression (IL-1β, TNFα) in enriched microglia/macrophages
decreases
Moreover, MB intervention attenuated TBI-induced inflammatory gene expression (interleukin [IL]-1β, tumor necrosis factor α) in enriched microglia/macrophages 1 d post injury.
PMID:25070744 · one of two readings recorded this
microglial activation
decreases
Here we show that immediate MB infusion (intravenous; 15-30 minutes after TBI) reduced cerebral edema, attenuated microglial activation and reduced neuroinflammation, and improved behavioral recovery after midline fluid percussion injury in mice.
PMID:25070744 · one of two readings recorded this
number of harvested lymph nodes and harvested lymph nodes per minute after gastrectomy
increases, 33.6 vs 43.4 harvested lymph nodes, p = 0.005, n = 60
Not recorded as a finding: the compound was a reagent, not an exposure
The number of harvested LNs (mean±SD) was 33.6±11.9 in the conventional arm and 43.4±13.9 in the methylene blue arm (P=0.005).
PMID:25356528 · one of two readings recorded this
number of harvested lymph nodes
The number of harvested LNs (mean±SD) was 33.6±11.9 in the conventional arm and 43.4±13.9 in the methylene blue arm (P=0.005)
PMID:25356528 · one of two readings recorded this
number of harvested lymph nodes
increases, p = 0.005
The number of harvested LNs (mean±SD) was 33.6±11.9 in the conventional arm and 43.4±13.9 in the methylene blue arm (P=0.005)
PMID:25356528 · one of two readings recorded this
ratio of harvested lymph nodes per time
The ratio of the number of the harvested LNs per time was 1.12±0.46 LNs/min in the conventional arm and 1.49±0.59 LNs/min in the methylene blue arm (P=0.010)
PMID:25356528 · one of two readings recorded this
ratio of harvested lymph nodes per time
increases, p = 0.01
The ratio of the number of the harvested LNs per time was 1.12±0.46 LNs/min in the conventional arm and 1.49±0.59 LNs/min in the methylene blue arm (P=0.010)
PMID:25356528 · one of two readings recorded this
mean arterial pressure
increases, n = 30
The MAP was significantly higher in the methylene blue-treated group starting 25 min after the amlodipine infusion (95% CI, 2–30)
PMID:25441767 · one of two readings recorded this
heart rate by PowerLab recording, rats with amlodipine-induced shock
increases, significantly higher in the methylene blue group from 25 min, 95% CI 30-113 min
Not recorded as a finding: no outcome node for heart rate
Heart rate was significantly higher in the methylene blue-treated group starting 25 min after the start of the amlodipine infusion (95% CI, 30–113) which was analyzed up until 60 minutes as the majority of the subjects expired within an hour.
PMID:25441767 · one of two readings recorded this
heart rate, continuous monitoring via Power Lab
increases, significantly higher in the MB group starting 25 min after amlodipine infusion (95% CI, 30-113)
Not recorded as a finding: no outcome node for heart rate
Heart rate was significantly higher in the methylene blue-treated group starting 25 min after the start of the amlodipine infusion (95% CI, 30–113) which was analyzed up until 60 minutes as the majority of the subjects expired within an hour.
PMID:25441767 · one of two readings recorded this
heart rate
increases, n = 30
Heart rate was significantly higher in the methylene blue-treated group starting 25 min after the start of the amlodipine infusion (95% CI, 30–113)
PMID:25441767 · one of two readings recorded this
median survival time in minutes, Kaplan-Meier with log-rank test
Not recorded as a finding: no outcome node for survival time within hours in a rat poisoning model
The median survival time for the NS group was 42 min (95% CI, 28.1–55.9) and the methylene blue group was 109 min (95% CI, 93.9–124.1) Figure 1 shows the Kaplan–Meier analysis comparing survival times and mortality rates in the methylene blue and control groups.
PMID:25441767 · one of two readings recorded this
median survival time
n = 15
the methylene blue group was 109 min (95% CI, 93.9–124.1)
PMID:25441767 · one of two readings recorded this
median survival time
n = 15
The median survival time for the NS group was 42 min (95% CI, 28.1–55.9)
PMID:25441767 · one of two readings recorded this
mortality, survival to 120 minutes in amlodipine-induced shock rats
1/15 (7%) saline versus 5/15 (33%) MB survived to 120 minutes; difference -26%, 95% CI -54%, 0.3%, n = 30
Not recorded as a finding: the only Results sentence gives proportions and a difference with an interval touching zero but states no direction or absence in words
Overall, 1/15 (7%) rats in the saline-treated group survived to 120 minutes compared with 5/15 (33%) rats in the methylene blue-treated group (difference −26%, 95% CI –54%, 0.3%).
PMID:25441767 · one of two readings recorded this
survival over time (log-rank)
increases, p = 0.002, n = 30
The log-rank test revealed a statistically significant difference between the survival rates over time (p = 0.002)
PMID:25441767 · one of two readings recorded this
survival to 120 minutes, proportion alive (primary outcome), rats with amlodipine-induced shock
1/15 (7%) saline versus 5/15 (33%) methylene blue, difference -26%, 95% CI -54% to 0.3%
Not recorded as a finding: all-cause-mortality node requires a stated follow-up horizon and the sentence carries no direction word; Results does not state significance of the proportion difference in words
Overall, 1/15 (7%) rats in the saline-treated group survived to 120 minutes compared with 5/15 (33%) rats in the methylene blue-treated group (difference −26%, 95% CI –54%, 0.3%).
PMID:25441767 · one of two readings recorded this
survival to 120 minutes
unclear, n = 30
Overall, 1/15 (7%) rats in the saline-treated group survived to 120 minutes compared with 5/15 (33%) rats in the methylene blue-treated group (difference −26%, 95% CI –54%, 0.3%)
PMID:25441767 · one of two readings recorded this
body weight
decreases
Both compounds led to weight reduction (Fig. and c)
PMID:25769090 · one of two readings recorded this
body weight
decreases, p = 0.02
During the period of treatment, there was dose-dependent weight reduction in the L66 MTC cohorts independent of genotype [see asterisks; dose effect: F(3,50)=3.9, P<0.02]
PMID:25769090 · one of two readings recorded this
core-tau fragments (12/14 kDa and dimer) from L66 tau aggregates after nuclease digestion
decreases
These were decreased in intensity or absent when MTC was included at 5 and 50 μmol/l (lanes 4 and 5)
PMID:25769090 · one of two readings recorded this
mean number of trials to criterion across three spatial problems in the water maze, RotaRod time on the accelerating rod and motor learning, and count of tau-reactive neurons, in Line 1 and Line 66 tau transgenic mice given oral methylthioninium chloride (MTC) or leucomethylthioninium (LMTX) versus vehicle
decreases
Not recorded as a finding: this platform holds no node for the endpoint
This impairment was reversed in mice receiving 45 mg/kg MTC (i.e. 35.1 mg MT/kg; Fig. 3d).
PMID:25769090 · one of two readings recorded this
motor learning, L66 vs WT before treatment
decreases, p = 0.001
as was the interaction between both factors [F(11,759)=6.9, P<0.001]
PMID:25769090 · one of two readings recorded this
motor learning, L66 vs WT before treatment
decreases, p = 0.001
This was confirmed statistically by a reliable genotype×trial interaction [F(11,836)=5.5, P<0.001] and both main effects were also significant (F>5, P<0.05)
PMID:25769090 · one of two readings recorded this
motor learning (trial 12 minus trial 1)
increases
All doses of MTC produced full recovery of motor learning, as measured by the difference between trial 1 and trial 12
PMID:25769090 · one of two readings recorded this
motor memory (pretreatment trial 1 vs post-treatment trial 1)
increases
There was a significant benefit of treatment with LMTX at 15 mg/kg, but not at any other dose
PMID:25769090 · one of two readings recorded this
motor memory (pretreatment trial 1 vs post-treatment trial 1)
no effect
No drug effect was found in either WT or L66 mice
PMID:25769090 · one of two readings recorded this
path length to platform (visible platform task)
no effect
Treatment with neither 15 nor 45 mg/kg LMTX had any effect on path length for either genotype (genotype effect: F<2)
PMID:25769090 · one of two readings recorded this
path length to platform (visible platform task)
decreases, p = 0.01
In WT mice, there was a significant main effect of drug [F(2,45)=5.8, P<0.01] because of an improvement in the group receiving 15 mg/kg MTC relative to vehicle [dose effect: F(1,30)=12.2, P<0.01]
PMID:25769090 · one of two readings recorded this
path length to platform (visible platform task)
no effect
However, the 45 mg/kg cohort did not differ from controls
PMID:25769090 · one of two readings recorded this
path length to platform (visible platform task)
no effect
No drug effect was observed in the L1 cohorts
PMID:25769090 · one of two readings recorded this
path length to platform (visible platform task)
increases, p = 0.001
Visible platform training revealed an impairment in L1 mice relative to WT mice for path length [F(1,156)=34, P<0.001 for vehicle cohorts]
PMID:25769090 · one of two readings recorded this
path length to platform (visible platform task)
no effect
WT and L1 mice on vehicle performed equally [genotype effect: F(1,27)=3.2, NS] in terms of mean path length to platform
PMID:25769090 · one of two readings recorded this
RotaRod performance (post-treatment)
increases, p = 0.001
The difference with respect to vehicle was significant at all three doses [5 mg/kg: F(1,231)=20.23, P<0.001; 15 mg/kg: F(1,231)=21.28, P<0.001; 45 mg/kg: F(1,231)=5.28, P<0.025]
PMID:25769090 · one of two readings recorded this
RotaRod performance (post-treatment)
increases, p = 0.025
The difference with respect to vehicle was significant at all three doses [5 mg/kg: F(1,231)=20.23, P<0.001; 15 mg/kg: F(1,231)=21.28, P<0.001; 45 mg/kg: F(1,231)=5.28, P<0.025]
PMID:25769090 · one of two readings recorded this
RotaRod performance (post-treatment)
no effect
After 2 weeks of LMTX treatment, WT mice treated with LMTX at 45 mg/kg did not differ from vehicle controls
PMID:25769090 · one of two readings recorded this
RotaRod performance (post-treatment)
increases, p = 0.001
The difference with respect to vehicle was significant at all three doses [5 mg/kg: F(1,231)=20.23, P<0.001; 15 mg/kg: F(1,231)=21.28, P<0.001; 45 mg/kg: F(1,231)=5.28, P<0.025]
PMID:25769090 · one of two readings recorded this
RotaRod performance (post-treatment)
increases, p = 0.001
There was evidence of an effect of treatment in L66 mice receiving any dose of LMTX [F(3,473)=7.11, P<0.001]
PMID:25769090 · one of two readings recorded this
RotaRod performance (post-treatment)
increases, p = 0.005
Doses of both 5 and 15 mg/kg produced significant benefit (dose effect: F>10, P<0.005), whereas 45 mg/kg did not
PMID:25769090 · one of two readings recorded this
RotaRod performance (post-treatment)
no effect
Doses of both 5 and 15 mg/kg produced significant benefit (dose effect: F>10, P<0.005), whereas 45 mg/kg did not
PMID:25769090 · one of two readings recorded this
RotaRod performance (post-treatment)
no effect
MTC administered at 45 mg/kg did not affect the performance of WT controls
PMID:25769090 · one of two readings recorded this
RotaRod performance (post-treatment)
increases, p = 0.005
Doses of both 5 and 15 mg/kg produced significant benefit (dose effect: F>10, P<0.005), whereas 45 mg/kg did not
PMID:25769090 · one of two readings recorded this
RotaRod performance (post-treatment)
increases, p = 0.01
In contrast, there was a striking improvement in L66 mice receiving treatment compared with their vehicle controls [F(33,517)=4.1, P<0.01]
PMID:25769090 · one of two readings recorded this
RotaRod performance vs brain MT concentration (LMTX, 5 and 15 mg/kg)
increases, p = 0.002
Total MT concentrations in the brain in animals dosed with 5 or 15 mg/kg were correlated with performance, as measured by the mean value for the 12 post-treatment trials (r=0.59, P<0.002; Fig. 7g)
PMID:25769090 · one of two readings recorded this
RotaRod performance vs brain MT concentration (MTC, 5 and 15 mg/kg)
increases, p = 0.01
The total MT concentrations in the brains of animals dosed with either 5 or 15 mg/kg were correlated with the mean performance on the RotaRod during post-treatment trials (r=0.5, P<0.01; Fig. 6g)
PMID:25769090 · one of two readings recorded this
swim speed (LMTX cohorts)
no effect
and these differences were not altered by pretreatment with LMTX (drug effect: F<2)
PMID:25769090 · one of two readings recorded this
swim speed (LMTX cohorts)
increases, p = 0.001
Faster swim speed was again observed in L1 mice compared with WT mice (genotype effect: F(1,156)=75, P<0.001 for vehicle)
PMID:25769090 · one of two readings recorded this
swim speed (MTC cohorts)
no effect
L1 mice swam faster than WT mice [F(1,27)=21, P<0.001], and drug dosing did not alter the velocity in either genotype
PMID:25769090 · one of two readings recorded this
swim speed (MTC cohorts)
increases, p = 0.001
L1 mice swam faster than WT mice [F(1,27)=21, P<0.001], and drug dosing did not alter the velocity in either genotype
PMID:25769090 · one of two readings recorded this
tau-immunoreactive cells, mean across regions (L66)
decreases
There was a significant reduction in the number of tau-immunoreactive cells averaged across regions of interest
PMID:25769090 · one of two readings recorded this
tau-positive cells, amygdala (L66)
decreases
The differences at the higher dose were significant in the entorhinal cortex, the amygdala and the visual cortex, but not in the hippocampus or the auditory cortex
PMID:25769090 · one of two readings recorded this
tau-positive cells, auditory cortex (L66)
no effect
The differences at the higher dose were significant in the entorhinal cortex, the amygdala and the visual cortex, but not in the hippocampus or the auditory cortex
PMID:25769090 · one of two readings recorded this
tau-positive cells, entorhinal cortex (L66)
decreases
The differences at the higher dose were significant in the entorhinal cortex, the amygdala and the visual cortex, but not in the hippocampus or the auditory cortex
PMID:25769090 · one of two readings recorded this
tau-positive cells, hippocampus (L66)
no effect
The differences at the higher dose were significant in the entorhinal cortex, the amygdala and the visual cortex, but not in the hippocampus or the auditory cortex
PMID:25769090 · one of two readings recorded this
tau-positive cells, mean across regions (L66)
no effect, p = 0.065
The effect of treatment with 15 mg/kg failed to reach statistical significance (P=0.065), but the effect was reliable at 45 mg/kg
PMID:25769090 · one of two readings recorded this
tau-positive cells, mean across regions (L66)
decreases
The effect of treatment with 15 mg/kg failed to reach statistical significance (P=0.065), but the effect was reliable at 45 mg/kg
PMID:25769090 · one of two readings recorded this
tau-positive cells, visual cortex (L66)
decreases
The differences at the higher dose were significant in the entorhinal cortex, the amygdala and the visual cortex, but not in the hippocampus or the auditory cortex
PMID:25769090 · one of two readings recorded this
tau-positive neurons, hippocampus (L1)
decreases
In the hippocampus, the effect was significant at both doses; no other region showed statistically significant effects
PMID:25769090 · one of two readings recorded this
tau-positive neurons, hippocampus (L1)
decreases
In the hippocampus, there were reductions at 15 and 45 mg/kg
PMID:25769090 · one of two readings recorded this
tau-positive neurons, hippocampus (L1)
decreases
In the hippocampus, there were reductions at 15 and 45 mg/kg
PMID:25769090 · one of two readings recorded this
tau-positive neurons, mean across regions (L1)
decreases
Likewise, a significant reduction in the mean count of tau-positive cells averaged across regions of interest was seen in animals treated with LMTX at 15 mg/kg, but not at 45 mg/kg
PMID:25769090 · one of two readings recorded this
tau-positive neurons, mean across regions (L1)
no effect
Likewise, a significant reduction in the mean count of tau-positive cells averaged across regions of interest was seen in animals treated with LMTX at 15 mg/kg, but not at 45 mg/kg
PMID:25769090 · one of two readings recorded this
tau-positive neurons, mean across regions (L1)
no effect
This shows a significant reduction in tau-reactive neurons in mice treated with MTC at 45 and 75 mg/kg, but not at 5 or 15 mg/kg
PMID:25769090 · one of two readings recorded this
tau-positive neurons, mean across regions (L1)
decreases
This shows a significant reduction in tau-reactive neurons in mice treated with MTC at 45 and 75 mg/kg, but not at 5 or 15 mg/kg
PMID:25769090 · one of two readings recorded this
tau-positive neurons, mean across regions (L1)
no effect
This shows a significant reduction in tau-reactive neurons in mice treated with MTC at 45 and 75 mg/kg, but not at 5 or 15 mg/kg
PMID:25769090 · one of two readings recorded this
tau-positive neurons, mean across regions (L1)
decreases
This shows a significant reduction in tau-reactive neurons in mice treated with MTC at 45 and 75 mg/kg, but not at 5 or 15 mg/kg
PMID:25769090 · one of two readings recorded this
trials to criterion in a spatial problem-solving water maze, RotaRod time to fall and motor learning, and count of tau-reactive neurons by mAb 7/51 immunohistochemistry in two tau transgenic mouse lines given oral methylthioninium chloride (MTC) or leucomethylthioninium (LMTX) versus vehicle
significant reduction in tau-reactive neurons with MTC at 45 and 75 mg/kg, not at 5 or 15 mg/kg
Not recorded as a finding: this platform holds no node for the endpoint
This shows a significant reduction in tau-reactive neurons in mice treated with MTC at 45 and 75 mg/kg, but not at 5 or 15 mg/kg.
PMID:25769090 · one of two readings recorded this
trials to criterion, problem-solving water maze (LMTX)
decreases
Treatment with LMTX at a dose of 15 mg/kg (8.9 mg MT/kg) was sufficient to reverse spatial impairment and restore the performance to WT levels, and the same effects were also seen at 45 mg/kg
PMID:25769090 · one of two readings recorded this
trials to criterion, problem-solving water maze (LMTX)
decreases
Treatment with LMTX at a dose of 15 mg/kg (8.9 mg MT/kg) was sufficient to reverse spatial impairment and restore the performance to WT levels, and the same effects were also seen at 45 mg/kg
PMID:25769090 · one of two readings recorded this
trials to criterion, problem-solving water maze (LMTX)
modulates, p = 0.005
Both genotype and drug effects were significant [F>3.9, P<0.02), as was the interaction between these factors [F(2,105)=5.5, P<0.005]
PMID:25769090 · one of two readings recorded this
trials to criterion, problem-solving water maze (MTC)
decreases
This impairment was reversed in mice receiving 45 mg/kg MTC (i.e. 35.1 mg MT/kg; Fig. 3d)
PMID:25769090 · one of two readings recorded this
trials to criterion, problem-solving water maze (MTC)
modulates, p = 0.05
There was a significant genotype×drug interaction [F(2,27)=3.9, P<0.05] in L1 mice [F(2,14)=6.1; P<0.02] due to a significant dose effect but not in WT mice (F<1)
PMID:25769090 · one of two readings recorded this
trials to criterion, problem-solving water maze (MTC)
decreases, p = 0.02
There was a significant genotype×drug interaction [F(2,27)=3.9, P<0.05] in L1 mice [F(2,14)=6.1; P<0.02] due to a significant dose effect but not in WT mice (F<1)
PMID:25769090 · one of two readings recorded this
functional (behavioral) deficits
decreases
We found that delaying MB treatment 24 h postinjury still minimized lesion volume and functional deficits, compared to vehicle-treated animals.
PMID:25961471 · one of two readings recorded this
lesion volume by multi-modal MRI and behavioral deficits in rats after traumatic brain injury, delayed (24 h) MB versus vehicle and acute MB
decreases, delayed MB minimized lesion volume and functional deficits compared to vehicle
Not recorded as a finding: this platform holds no node for the endpoint
We found that delaying MB treatment 24 h postinjury still minimized lesion volume and functional deficits, compared to vehicle-treated animals.
PMID:25961471 · one of two readings recorded this
lesion volume by multi-parametric MRI and behavioural functional deficits in rats after traumatic brain injury, MB given 24 h postinjury versus vehicle and acute MB
decreases, lesion volume and functional deficits minimised versus vehicle-treated animals
Not recorded as a finding: this platform holds no node for the endpoint
We found that delaying MB treatment 24 h postinjury still minimized lesion volume and functional deficits, compared to vehicle-treated animals.
PMID:25961471 · one of two readings recorded this
lesion volume
decreases
We found that delaying MB treatment 24 h postinjury still minimized lesion volume and functional deficits, compared to vehicle-treated animals.
PMID:25961471 · one of two readings recorded this
Akt and mTOR pathway activation
increases
Akt and mTOR pathways were activated by MB treatment
PMID:26047733 · one of two readings recorded this
ATP concentration after 24 h reoxygenation
increases
MB increases ATP after 24h reoxygenation in a dose dependent manner
PMID:26047733 · one of two readings recorded this
cell viability after OGD/reoxygenation
increases
MB (100 nM) treatment at the time of reoxygenation was able to significantly rescue the cells from OGD/reoxygenation injury
PMID:26047733 · one of two readings recorded this
endogenous pyruvate concentration
increases
This increased enzyme activity resulted in an increased endogenous pyruvate concentration
PMID:26047733 · one of two readings recorded this
EPO protein content
increases
EPO was significantly increased with MB treatment
PMID:26047733 · one of two readings recorded this
glucose-6-phosphate dehydrogenase activity
increases
MB-enhanced ATP concentration was consistent with increased activities of hexokinase and glucose-6-phosphodehydrogenase (G6PDH)
PMID:26047733 · one of two readings recorded this
glucose uptake (2-NBDG)
increases
MB (100 nM and 1 μM) increases glucose uptake in a dose dependent manner (25% and 50%, respectively) which was manifested with 2-deoxy-2-[(7-nitro-2,1,3-benzoxadiazol-4-yl) amino]-D-glucose (2NBDG)
PMID:26047733 · one of two readings recorded this
glucose uptake (2-NBDG)
increases
MB (100 nM and 1 μM) increases glucose uptake in a dose dependent manner (25% and 50%, respectively) which was manifested with 2-deoxy-2-[(7-nitro-2,1,3-benzoxadiazol-4-yl) amino]-D-glucose (2NBDG)
PMID:26047733 · one of two readings recorded this
hexokinase activity
increases
MB-enhanced ATP concentration was consistent with increased activities of hexokinase and glucose-6-phosphodehydrogenase (G6PDH)
PMID:26047733 · one of two readings recorded this
HIF-1α nuclear accumulation
increases
HIF-1α accumulation was observed in the nucleus of both HT22 cells and primary neurons within 10 minutes of treatment with 1μM and 10μM MB, respectively
PMID:26047733 · one of two readings recorded this
HIF-1α nuclear accumulation
increases
HIF-1α accumulation was observed in the nucleus of both HT22 cells and primary neurons within 10 minutes of treatment with 1μM and 10μM MB, respectively
PMID:26047733 · one of two readings recorded this
HIF-1α protein content
increases
MB significantly increases HIF-1α protein content compared to both normoxic and OGD control groups
PMID:26047733 · one of two readings recorded this
HT22 cell death after OGD/reoxygenation
Six hours of OGD and 24 h of reoxygenation killed about 45% of HT22 cells in the control group
PMID:26047733 · one of two readings recorded this
HT22 cell viability after oxygen-glucose deprivation and reoxygenation, calcein AM assay
increases
Not recorded as a finding: no outcome node for in vitro cell viability
MB (100 nM) treatment at the time of reoxygenation was able to significantly rescue the cells from OGD/reoxygenation injury.
PMID:26047733 · one of two readings recorded this
HT22 cell viability by calcein AM assay after oxygen-glucose deprivation and reoxygenation, with ATP, glucose uptake, hexokinase and G-6-PDH activity, and HIF-1alpha, EPO, Akt, mTOR and PHD2 immunoblots
increases, MB 100 nM significantly rescued cells from OGD/reoxygenation injury
Not recorded as a finding: this platform holds no node for the endpoint
MB (100 nM) treatment at the time of reoxygenation was able to significantly rescue the cells from OGD/reoxygenation injury.
PMID:26047733 · one of two readings recorded this
intracellular O2 concentration
increases
MB increases intracellular O2 concentration, which provides a favorable condition for aerobic glucose metabolism
PMID:26047733 · one of two readings recorded this
MB-induced protection against OGD-reoxygenation with mTOR phosphorylation inhibited
decreases
KU-63794 dampened MB-induced protection against OGD-reoxygenation stress
PMID:26047733 · one of two readings recorded this
MB neuroprotection against OGD-reoxygenation with HIF-1α translocation blocked
decreases
2-MeOE2 treatment significantly abolished MB's neuroprotection against OGD-reoxygenation
PMID:26047733 · one of two readings recorded this
nuclear/cytoplasmic HIF-1α ratio
increases
Additionally, the nuclear/cytoplasmic HIF-1α ratio was significantly increased in the MB treated group vs. both normoxic and OGD/reoxygenation controls
PMID:26047733 · one of two readings recorded this
PHD2 content (whole cell extract)
decreases
MB lowered PHD2 content in the whole cell extract compared to the both normoxic and OGD control group
PMID:26047733 · one of two readings recorded this
PIP5K protein content
increases
Immunoblot assay shows that MB increased PIP5K which is known to function in glucose uptake by stimulating endocytosis of glucose
PMID:26047733 · one of two readings recorded this
Barnes maze escape latency and probe-trial time in target quadrant, rats after global cerebral ischemia
decreases, MB-treated animals showed significantly decreased escape latencies on the last training trial
Not recorded as a finding: no outcome node for rodent spatial learning and memory on the Barnes maze; arm-label sentence
By contrast, MB-treated animals showed significantly decreased escape latencies to find the escape box on the last training trials.
PMID:26433378 · one of two readings recorded this
Barnes maze escape latency, rat spatial learning and memory
decreases, MB-treated animals showed significantly decreased escape latencies on the last training trial
Not recorded as a finding: no outcome node for rodent Barnes maze latency
By contrast, MB-treated animals showed significantly decreased escape latencies to find the escape box on the last training trials.
PMID:26433378 · one of two readings recorded this
CA1 neuronal loss (NeuN staining)
decreases
Histological evaluation by NeuN staining revealed that transient GCI induced a selective neuronal loss in the hippocampal CA1 region of ischemic control rats compared with sham operated animals
PMID:26433378 · one of two readings recorded this
caspase-3 activity
increases
As shown in Fig. 4A, 2-day of I/R evoked a 3-fold increase in caspase-3 activity
PMID:26433378 · one of two readings recorded this
caspase-3 activity
decreases
Importantly, the increased caspase-3 protease activity was dramatically prevented in MB-treated animals
PMID:26433378 · one of two readings recorded this
caspase-8 activity
decreases
Furthermore, caspase-9 and caspase-8 activities were also highly induced following 2-day ischemic reperfusion, and were effectively reduced by MB treatment
PMID:26433378 · one of two readings recorded this
caspase-9 activity
decreases
Furthermore, caspase-9 and caspase-8 activities were also highly induced following 2-day ischemic reperfusion, and were effectively reduced by MB treatment
PMID:26433378 · one of two readings recorded this
Sources cited
9 papers
- Subject
- methylene blue
- Findings
- 13
- Papers
- 9
Methylene Blue for Septic Shock: A Systematic Review and Meta-analysis of Randomized and Prospective Observational Studies.record2026PMID:395742881 finding
The effect of methylene blue infiltrating injection on anal pain after Milligan-Morgan surgery: A randomized controlled clinical study.record2026PMID:416866201 finding
Intraoperative methylene blue infusion reduces postoperative delirium in patients undergoing pancreatic surgery: A randomized controlled clinical trial.record2025PMID:411769561 finding
Effect of methylene blue on outcomes in patients with distributive shock: a meta-analysis of randomised controlled trials.record2024PMID:382161853 findings
Methylene Blue in Septic Shock: A Systematic Review and Meta-Analysis.record2024PMID:389049781 finding
Methylene Blue Reduces Mortality in Critically Ill and Perioperative Patients: A Meta-Analysis of Randomized Trials.record2024PMID:378800411 finding
Methylene blue for vasoplegic syndrome in cardiopulmonary bypass surgery: A systematic review and meta-analysis.record2021PMID:336531542 findings
Efficacy of methylene blue in an experimental model of calcium channel blocker-induced shock.record2015PMID:254417671 finding
Safety of the methylene blue plus chloroquine combination in the treatment of uncomplicated falciparum malaria in young children of Burkina Faso [ISRCTN27290841].record2005PMID:161790852 findings
Other names
7 names
Resolves to: methylene blue
- Also called
- Basic Blue 9C.I. 52015Methylene Blue anhydrousMethylthioninium chlorideSolvent blue 8Swiss blue
- Systematic name
- 3,7-bis(dimethylamino)phenothiazin-5-ium chloride