PMID- 27274829 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20160609 LR - 20200929 IS - 2048-8505 (Print) IS - 2048-8513 (Electronic) IS - 2048-8505 (Linking) VI - 9 IP - 3 DP - 2016 Jun TI - Familial vasculitides: granulomatosis with polyangitis and microscopic polyangitis in two brothers with differing anti-neutrophil cytoplasm antibody specificity. PG - 429-31 LID - 10.1093/ckj/sfw016 [doi] AB - Anti-neutrophil cytoplasm antibody (ANCA)-associated vasculitis (AAV) is a group of rare autoimmune diseases. Although the aetiology of AAV is uncertain, it is likely that genetic and environmental factors contribute. We report the unusual case of two brothers presenting with AAV with differing clinical pictures and differing ANCA specificity. There is a recently identified difference in genetic risk factors associated with ANCA specificity, making it surprising that first-degree relatives develop AAV with differing clinical and serological features. Our report illustrates the complex aetiology of AAV and suggests that further research on the interaction of genetic and environmental factors is needed. FAU - Prendecki, Maria AU - Prendecki M AD - Imperial College Renal and Transplant Centre, Hammersmith Hospital , London , UK. FAU - Cairns, Tom AU - Cairns T AD - Imperial College Renal and Transplant Centre, Hammersmith Hospital , London , UK. FAU - Pusey, Charles D AU - Pusey CD AD - Imperial College Renal and Transplant Centre, Hammersmith Hospital , London , UK. LA - eng PT - Case Reports DEP - 20160414 PL - England TA - Clin Kidney J JT - Clinical kidney journal JID - 101579321 PMC - PMC4886912 OTO - NOTNLM OT - ANCA OT - familial OT - vasculitis EDAT- 2016/06/09 06:00 MHDA- 2016/06/09 06:01 PMCR- 2016/04/14 CRDT- 2016/06/09 06:00 PHST- 2015/12/02 00:00 [received] PHST- 2016/02/26 00:00 [accepted] PHST- 2016/06/09 06:00 [entrez] PHST- 2016/06/09 06:00 [pubmed] PHST- 2016/06/09 06:01 [medline] PHST- 2016/04/14 00:00 [pmc-release] AID - sfw016 [pii] AID - 10.1093/ckj/sfw016 [doi] PST - ppublish SO - Clin Kidney J. 2016 Jun;9(3):429-31. doi: 10.1093/ckj/sfw016. Epub 2016 Apr 14.