Abstract:
:This study assessed variation in plasma levels of the complement regulatorC1 inhibitor (C1inh) in patients with age related macular degeneration (AMD) and controls. Plasma from391 AMD cases and 370 controls was assayed by rate nephelometry to determine C1inh protein levels. Protein levels were analysed for relationships with age, gender, smoking, AMD disease status and genetic variation in the SERPING1 gene, which encodes C1inh, using a multivariate analysis. t-Tests show a significant difference in C1inh levels in AMD cases compared with controls (p=2.340E-6), smokers compared to non-smokers (p=1.022E-4) and females compared to males (p=1.661E-7). Multivariate analysis shows that after accounting for gender and smoking AMD status remained significant. Age was included in the model but was not significant. Including genetic variation in the model shows that one significant SNP (rs2649663) 5' of the SERPING1 gene is associated with C1inh levels though this SNP is not associated with AMD. This suggests that genetic variation in the promoter region of the SERPING1 gene may influence expression of the gene.
journal_name
Immunobiologyjournal_title
Immunobiologyauthors
Gibson J,Hakobyan S,Cree AJ,Collins A,Harris CL,Ennis S,Morgan BP,Lotery AJdoi
10.1016/j.imbio.2011.07.015subject
Has Abstractpub_date
2012-02-01 00:00:00pages
251-5issue
2eissn
0171-2985issn
1878-3279pii
S0171-2985(11)00146-Xjournal_volume
217pub_type
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