尽管 IgAN 通常是散发的,但也有家族性病例的报道。[16]Gharavi AG, Yan Y, Scolari F, et al. IgA nephropathy, the most common cause of glomerulonephritis, is linked to 6q22-23. Nat Genet. 2000 Nov;26(3):354-7.http://www.ncbi.nlm.nih.gov/pubmed/11062479?tool=bestpractice.com[17]Bisceglia L, Cerullo G, Forabosco P, et al. Genetic heterogeneity in Italian families with IgA nephropathy: suggestive linkage for two novel IgA nephropathy loci. Am J Hum Genet. 2006 Dec;79(6):1130-4.http://www.cell.com/ajhg/fulltext/S0002-9297(07)63477-6http://www.ncbi.nlm.nih.gov/pubmed/17186473?tool=bestpractice.com[18]Paterson AD, Liu XQ, Wang K, et al. Genome-wide linkage scan of a large family with IgA nephropathy localizes a novel susceptibility locus to chromosome 2q36. J Am Soc Nephrol. 2007 Aug;18(8):2408-15.http://jasn.asnjournals.org/content/18/8/2408.longhttp://www.ncbi.nlm.nih.gov/pubmed/17634434?tool=bestpractice.com[19]Karnib HH, Sanna-Cherchi S, Zalloua PA, et al. Characterization of a large Lebanese family segregating IgA nephropathy. Nephrol Dial Transplant. 2007 Mar;22(3):772-7.https://academic.oup.com/ndt/article/22/3/772/1899254http://www.ncbi.nlm.nih.gov/pubmed/17172253?tool=bestpractice.com 通过使用全基因组分析,已经确定几个遗传易感性基因位点。[21]Kiryluk K, Li Y, Sanna-Cherchi S, et al. Geographic differences in genetic susceptibility to IgA nephropathy: GWAS replication study and geospatial risk analysis. PLoS Genet. 2012;8(6):e1002765.http://journals.plos.org/plosgenetics/article?id=10.1371/journal.pgen.1002765http://www.ncbi.nlm.nih.gov/pubmed/22737082?tool=bestpractice.com[22]Gharavi AG, Kiryluk K, Choi M, et al. Genome-wide association study identifies susceptibility loci for IgA nephropathy. Nat Genet. 2011 Mar 13;43(4):321-7.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3412515/http://www.ncbi.nlm.nih.gov/pubmed/21399633?tool=bestpractice.com[23]Feehally J, Farrall M, Boland A, et al. HLA has strongest association with IgA nephropathy in genome-wide analysis. J Am Soc Nephrol. 2010 Oct;21(10):1791-7.http://jasn.asnjournals.org/content/21/10/1791.longhttp://www.ncbi.nlm.nih.gov/pubmed/20595679?tool=bestpractice.com[24]Kiryluk K, Li Y, Scolari F, et al. Discovery of new risk loci for IgA nephropathy implicates genes involved in immunity against intestinal pathogens. Nat Genet. 2014 Nov;46(11):1187-96.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4213311/http://www.ncbi.nlm.nih.gov/pubmed/25305756?tool=bestpractice.com[34]D'Amico G. Natural history of idiopathic IgA nephropathy: role of clinical and histological prognostic factors. Am J Kidney Dis. 2000 Aug;36(2):227-37.http://www.ncbi.nlm.nih.gov/pubmed/10922300?tool=bestpractice.com