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Autoimmune

Immunoglobulin a Vasculitis

Assembled from catalogue records November 2, 2026

Immunoglobulin a Vasculitis, as genome-wide studies have reported it: 29 positions from 1 study, the largest recording 46 cases and 18,757 controls. Assembled by code from the GWAS Catalog's records and kept current as positions arrive; every figure is the studies' own.

What this condition connects to

Prevalence
Not taken from these records, which report study sizes rather than how common the condition is. The largest study behind this page recorded 46 cases and 18,757 controls (Koskela M et al. 2021, PMID:33591409).
Inheritance
Many positions, each with a small effect: 29 positions across 1 study, the pattern of a polygenic condition. The records do not give a heritability, and this page does not supply one.

1 study in the GWAS Catalog report 29 positions for Immunoglobulin a Vasculitis, which the catalogue files as "Immunoglobulin A vasculitis". MyGeneLog follows the condition as positions arrive: code builds this page from the records, adds each new position when it is reported, and writes no sentence of its own beyond them.

The studies, one by one

Koskela M et al. 2021, in Pediatric Nephrology — HLA-DQ and HLA-DRB1 alleles associated with Henoch-Schönlein purpura nephritis in Finnish pediatric population: a genome-wide association study. Studied in 46 cases and 18,757 controls. From it, 29 positions on this page: rs7754768 (near HLA-DRA), rs9268832 (HLA-DRB9), rs9275582 (near MTCO3P1), rs3763327 (near HLA-DRA), rs7195 (HLA-DRA), rs3998158 (near MTCO3P1), rs112396255 (near HLA-DQA1), rs17533090 (near HLA-DQA1), and 21 more. PMID:33591409.

Positions and mapped genes

The 29 positions sit in or beside 5 genes: HLA-DRA, HLA-DRB9, MTCO3P1, HLA-DQA1, TSBP1-AS1. These are locations, as the catalogue records them; whether any of these genes is how a position acts is a question the records leave open.

Koskela M et al. 2021 reported the smallest P value on this page — P = 7 × 10-10, with an odds ratio of 0.14 — at rs7754768 near HLA-DRA.

Reading this page

Association records say which positions differ, on average, between people with Immunoglobulin a Vasculitis and people without. They do not describe the condition, say how common it is, or tell anyone what to do, so this page does not either. For a single position, open its variant page: it gives that study's record in fixed sentences, with ClinVar's where there is one.

Clinical detail

Diagnosis happens in a clinic

Nothing on this page diagnoses Immunoglobulin a Vasculitis. The 29 variants here are research findings; no guideline uses them to predict, screen for or diagnose the condition — that is a clinician's work.

Its sources are association records, and association records carry no clinical guidance, so neither does this page. What a genome-wide study reports is a difference between groups of people, not a finding about any one person. Symptoms, tests and treatment are questions for a clinician.

Sources

Databases, guidelines and references

Papers, with their authors

Quoting this page

Licensed CC BY-NC 4.0: free to read, share and adapt for non-commercial use, naming MyGeneLog™ and linking the exact page. Commercial use, including training or serving a commercial AI system, needs a licence — https://www.mygenelog.com/license

Immunoglobulin a Vasculitis. MyGeneLog™. https://www.mygenelog.com/conditions/immunoglobulin-a-vasculitis

Questions about Immunoglobulin a Vasculitis

What is Immunoglobulin a Vasculitis?

Immunoglobulin a Vasculitis is the condition the GWAS Catalog files under "Immunoglobulin A vasculitis". This page does not define it in its own words; it lists what genome-wide studies have reported: 29 positions from 1 study, with each study's sample and citation.

Is Immunoglobulin a Vasculitis genetic?

Genes play a part: 29 positions have been linked to it, the largest study recording 46 cases and 18,757 controls. But each is a common variant of small effect, and a link found across a population does not cause the condition in any one person.

Which genes are linked to Immunoglobulin a Vasculitis on this page?

The positions lie in or near 5 genes: HLA-DRA, HLA-DRB9, MTCO3P1, HLA-DQA1, TSBP1-AS1. A mapped gene is the catalogue's location for a position, not a mechanism.

Can these variants predict whether I will get Immunoglobulin a Vasculitis?

No. Each variant shifts the odds only slightly, and only on average across many people. No guideline predicts Immunoglobulin a Vasculitis from a genotype; a clinician diagnoses it.

Free to reuse, non-commercially. This page's text is original writing from freely-available research, licensed CC BY-NC 4.0 — share and adapt it with attribution to MyGeneLog™; commercial use is licensed. It's general research-derived information, not medical advice or a diagnosis — see Terms of Use.