Restriction Fragment Length Polymorphisms of Constant Region Genes of Immunoglobulin Lambda Chains in Venezuelan Patients with Systemic Lupus Erythematosus  

Oleh:

Blasini, AM ; Delgado, MB ; Valdivieso, C ; Guevara, P ; Ramirez, JL ; Stekman, IL ; Rodriguez, MA ; Williams, RC

Jenis: Article from Journal
Dalam koleksi: Lupus vol. 5 no. 4 (1996), page 300-302.
Topik: SLE; Ig Genes; RFLP; Hispanic
Fulltext: 300.full.pdf (278.16KB)

Isi artikel

Previous studies suggest a potential association between human immunoglobulin (Ig) genes and susceptibility to systemic lupus erythematosus (SLE). Ig allotypic determinants seem to confer an increased risk for the disease in various ethnic patient populations. In this study we have examined the pattern of restriction fragment length polymorphisms (RFLP) of constant region lambda (Cλ) light chain genes in a group of 78 Venezuelan patients with SLE and 70 healthy controls. The frequency of the 8-kb allele and the 8/8 genotype was significantly lower in normal Venezuelan controls as compared to healthy British Caucasians (P = 0.0002 and 0.0007 respectively). In turn, Venezuelan controls showed a higher frequency of the 18-kb allele and the 18/18 genotype (P = 0.0002 and 0.0052 respectively). However, there were no statistically significant differences in either parameter between Venezuelan SLE patients and healthy controls. Our study argues against a role for lambda light chain constant region genes in predisposition to SLE.

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