infantile hypophosphatasia
Findings
No curated finding names infantile hypophosphatasia yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Infantile hypophosphatasia (I-HPP) is a very rare, severe form of hypophosphatasia characterized by infantile rickets without elevated serum alkaline phosphatase (ALP) activity and a wide range of clinical manifestations due to hypomineralization.
Definition from the Mondo Disease Ontology (MONDO:1010169), read 2026-09-29. CC BY 4.0.
- Inheritance
- Autosomal recessive inheritance
HPO, annotations 2026-09-02
Features
1 feature
What the disease is reported to present with, and how often among people who have it — never how often a feature means the disease. HPO, annotations 2026-09-02.
- Decreased circulating alkaline phosphatase activityHPOHP:0003282
- 1 of 1 reported patient
Genes
1 gene
Germline variants in the gene encoding each protein, as classified by GenCC submitters, each in their own words. Limited, disputed and refuted submissions are listed too.
- ALPLHGNC:438
- Strong · Labcorp Genetics (formerly Invitae) · Autosomal recessive · 2022
- Supportive · Orphanet · Autosomal recessive · 2021
Where it sits
- A kind of