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The MYH9 gene encodes a protein that is expressed in the kidney glomerular podocytes. MYH9 single nucleotide polymorphisms (SNPs) have been linked to the risk for chronic kidney disease (CKD) and end stage renal disease. Our aim was to determine whether MYH9 SNPs were associated with renal disease in Spanish Caucasians. The RENASTUR cohort consisted of 592 Spanish Caucasians, aged 55-85 years. They were genotyped for SNPs rs3752462 and rs4821480, that tagged haplotype E. The main values between individuals with a glomerular filtration rate (eGFR) <60 and ≥60 ml/ min./1.73 m 2 were statistically compared. The next variables were significantly associated with the eGFR in the univariate analysis: age, gender, type 2 diabetes, total cholesterol, total LDL-cholesterol, and the MYH9 rs3752462 (TC+TT genotypes; p=0.003). This SNP remained significantly associated with the eGFR in the multivariate analysis.In conclusion, SNP rs3752462 was an independent predictor of reduced eGFR in the Spanish RENASTUR population. The genotyping of this MYH9 SNP could help to identify individuals at risk of developing CKD.

In SLE, serum and urinary nitrate levels do not parallel lupus activity. Other variables, related or not to SLE, seem to affect these levels.

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