﻿<?xml version="1.0" encoding="utf-8"?><rss version="2.0"><channel><title>Autoimmune Diseases</title><link>http://www.sage-hindawi.com</link><description>The latest articles from SAGE-Hindawi Access to Research</description><copyright>&amp;#169; 2010, SAGE-Hindawi Access to Research. All rights reserved.</copyright><item><title>Fc &amp;#x03B3; RIIA Genotypes and Its Association with Anti-C1q Autoantibodies in Lupus Nephritis (LN)  Patients from Western India</title><link>http://www.sage-hindawi.com/journals/ad/2010/470695.html</link><description>To identify Fc &amp;#x03B3; RIIA genotypes in Systemic Lupus Erythematosus (SLE) patients and their association with anti-C1q antibodies. Methods. Fc &amp;#x03B3; RIIA genotyping was done in eighty Indian SLE patients and eighty healthy controls using allele-specific PCR. Anti-C1q antibodies were measured by ELISA. Results. LN patients showed higher SLEDAI (6&amp;#8211;32) as compared to SLE patients without renal manifestations and had SLEDAI between 6&amp;#8211;23. Fc &amp;#x03B3; RIIA polymorphic frequency in SLE patients was R131/H131 (67.5&amp;#37;), R131/R131 (20&amp;#37;) and H131/ H131 (12.5&amp;#37;) as against that of normal population (62.5&amp;#37;, 10&amp;#37;, and 27.5&amp;#37;), respectively. Sixty two patients (77.5&amp;#37;) showed positivity for anti-C1q antibodies. LN patients showed elevated levels of anti-C1q antibodies (258.2&amp;#x2009;u/ml&amp;#x00B1;38.5&amp;#x2009;U/mL) as compared to SLE patients without nephritis (134.6&amp;#x00B1;24.6&amp;#x2009;U/mL). Among anti-C1q positive patients, 71&amp;#37; had R131/H131 genotype, 22.6&amp;#37; had R131/R131 and remaining 6.4&amp;#37;, patients had H131/H131 genotype. All anti-C1q positive patients with R131/R131 genotype had elevated levels of anti-C1q antibodies (&amp;#62;100&amp;#x2009;U/ml), whereas among anti-C1q negative patients, none had R131/R131 genotype. Conclusion. This first report on Indian SLE patients supports the hypothesis that Fc &amp;#x03B3; RIIA R131 variant over expression may constitute a susceptibility factor for development of severe SLE manifestations in LN patients.</description><Author>Vandana Pradhan, Manisha Patwardhan, Anita Nadkarni, and Kanjaksha Ghosh</Author><copyright>&amp;#169; 2010, SAGE-Hindawi Access to Research. All rights reserved.</copyright></item><item><title>Cytotoxic T lymphocyte-Associated Antigen +49G Variant Confers Risk for Anti-CCP- and Rheumatoid Factor-Positive Type of Rheumatoid Arthritis Only in Combination with CT60&amp;#x2217;G Allele</title><link>http://www.sage-hindawi.com/journals/ad/2010/285974.html</link><description>Controversial observations have been published on the association of the cytotoxic T lymphocyte associated antigen gene&amp;#39;s variants with rheumatoid arthritis (RA). After genotyping 428 patients and 230 matched controls, the prevalence of the CT60&amp;#x2217;G allele was more frequent in RF- and/or anti-CCP-seropositive RApatients, compared to the healthy controls (P&amp;#x003C;.001). Regression analysis revealed that the CT60&amp;#x2217;G allele is a possible predisposing factor for RA in these subgroups. No accumulation of the +49&amp;#x2217;G allele was found among patients, and this variant was not found to correlate with RA. Assaying the possible genotype variations, the +49&amp;#x2217;G-CT60&amp;#x2217;G allelic combination was accumulated in seropositive RA-subtypes, and was associated with the risk of RA (OR=1.73, 
 P=.001
 for the whole RA-population). Although the +49&amp;#x2217;G allele did not mean a predisposition to RA alone, in combination with CT60&amp;#x2217;G it, also conferred risk, suggesting that the +49A/G
 variant is associated with the risk of RA only in certain haplotypes.</description><Author>Bernadett Farago, Peter Kisfali, Lili Magyari, Noemi Polgar, and Bela Melegh</Author><copyright>&amp;#169; 2010, SAGE-Hindawi Access to Research. All rights reserved.</copyright></item></channel></rss>