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doi: 10.1097/QAD.0000000000000215
Clinical Science: Concise Communications

SLC30A8 rs13266634 polymorphism is related to a favorable cardiometabolic lipid profile in HIV/hepatitis C virus-coinfected patients

Pineda-Tenor, Daniela; Micheloud, Darielab; Berenguer, Juanc,d; Jiménez-Sousa, María A.a; Fernández-Rodríguez, Amandaa; García-Broncano, Pilara; Guzmán-Fulgencio, Maríaa; Diez, Cristinac,d; Bellón, José M.e; Carrero, Anac,d; Aldámiz-Echevarria, Teresac,d; García-Álvarez, Mónicaa; Resino, Salvadora

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Objective: To analyze the relationship of SLC30A8 rs13266634 polymorphism with insulin resistance and dyslipidemia in HIV/hepatitis C virus (HCV)-coinfected patients.

Design: Cross-sectional study in 260 HIV/HVC-coinfected patients.

Methods: SLC30A8 polymorphisms were genotyped by GoldenGate assay. Genetic data were analyzed under the dominant inheritance model (CT/TT versus CC). Cholesterol, triglycerides, high-density lipoprotein (HDL-C), low-density lipoprotein (LDL-C), LDL-C/HDL-C, atherogenic index, and homeostatic model assessment of insulin resistance (HOMA-IR) values were assayed for each genotype.

Results: rs13266634 CT/TT carriers had higher serum values of HDL-C (P = 0.014) and lower values of LDL-C/HDL-C (P = 0.036) and atherogenic index (P = 0.011) than CC carriers. Additionally, rs13266634 CT/TT carriers had lower percentage of HDL 35 mg/dl or less (P = 0.050) and higher percentage of LDL/HDL at least 3 (P = 0.091) and atherogenic index at least 3.5 (P = 0.003) than CC carriers. When adjusted regression analysis was performed, rs13266634 CT/TT genotype was associated with high serum values of HDL-C [arithmetic mean ratio (AMR) = 1.10 (95% confidence interval, CI = 1.03–1.19) P = 0.006], and low values of LDL-C/HDL-C [AMR = 0.88 (95% CI = 0.79–0.99) P = 0.045] and atherogenic index [AMR = 0.89 (95% CI = 0.81–0.98) P = 0.024]. For categorical outcomes, rs13266634 CT/TT carriers had lower significant likelihood of having atherogenic index at least 3.5 [odds ratio = 0.47 (95% CI = 0.26–0.83) P = 0.009], and very close to significance for LDL-C/HDL-C at least 3 [odds ratio = 0.52 (95% CI = 0.27–1.02) P = 0.056], supporting the protective effect of the CT/TT genotypes. No significant relationship was observed between rs13266634 and HOMA-IR values.

Conclusion: rs13266634 CT/TT genotype was associated to higher levels of HDL-C and lower values of cardiovascular risk indices (LDL-C/HDL-C and atherogenic index), but there was a lack of association with HOMA-IR values. Thus, rs13266634 polymorphism might play a significant role in lipid metabolism and cardiovascular risk in HIV/HCV-coinfected patients.

© 2014 Lippincott Williams & Wilkins, Inc.


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