Acute intermittent porphyria: a disease with low penetrance and high heterogeneity

Bibliographic Details
Title: Acute intermittent porphyria: a disease with low penetrance and high heterogeneity
Authors: Jia-Jia Lei, Shuang Li, Bai-Xue Dong, Jing Yang, Yi Ren
Source: Frontiers in Genetics, Vol 15 (2024)
Publisher Information: Frontiers Media S.A., 2024.
Publication Year: 2024
Collection: LCC:Genetics
Subject Terms: acute intermittent porphyria, hydroxymethylbilane synthase, gene mutation, penetrance, heterogeneity, oligogenic inheritance, Genetics, QH426-470
More Details: Acute intermittent porphyria (AIP) is caused by mutations in the gene encoding hydroxymethylbilane synthase (HMBS), a key enzyme in the heme biosynthesis pathway. AIP is an autosomal dominant disorder characterized by low penetrance and a highly heterogenous clinical presentation. The estimated prevalence of AIP is 5–10 cases per 100,000 persons, with acute attacks manifesting in less than 1% of the at-risk population. This low frequency of attacks suggests significant roles for oligogenic inheritance and environmental factors in the pathogenesis of the disease. In recent years, identification of several modifier genes has advanced our understanding of the factors influencing AIP penetrance and disease severity. This review summarizes these factors including the impact of specific HMBS mutations, oligogenic inheritance, mitochondrial DNA copy number, age, sex, the influence of sex hormones, and the role of environmental factors. Further studies into the etiology of AIP disease penetrance should inform pathogenesis, potentially allowing for the development of more precise diagnostic and therapeutic approaches.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1664-8021
Relation: https://www.frontiersin.org/articles/10.3389/fgene.2024.1374965/full; https://doaj.org/toc/1664-8021
DOI: 10.3389/fgene.2024.1374965
Access URL: https://doaj.org/article/845507bc8e9943c6a59bcd28cc37f4a8
Accession Number: edsdoj.845507bc8e9943c6a59bcd28cc37f4a8
Database: Directory of Open Access Journals
More Details
ISSN:16648021
DOI:10.3389/fgene.2024.1374965
Published in:Frontiers in Genetics
Language:English