Journal
LIFE SCIENCES
Volume 207, Issue -, Pages 525-531Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.lfs.2018.07.005
Keywords
Atorvastatin; Captopril; Coronary artery disease; Hypertension; Interleukin-22; Losartan; Polymorphism
Funding
- Kerman University of Medical Sciences, Kerman, Iran [292-93]
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Aims: Interleukin-22 (IL-22) may be considered as an important cytokine in maintenance and progression of hypertension and coronary artery disease (CAD). The aim of the present study was to investigate the effect of treatment of hypertension and CAD on serum levels of IL-22 and the possible association of IL-22-rs1179251 gene polymorphism with hypertension and CAD. Materials and methods: A total of 286 subjects with suspected CAD were enrolled. Serum levels and gene polymorphism of IL-22 were investigated in hypertensive patients with no CAD (H-Tens), hypertensive patients with CAD (CAD + H-Tens); 3), CAD patients with no hypertension (CAD); and non-hypertensive with no CAD subjects as a control group (Ctr). The patients received routine medications for hypertension and CAD. Serum IL-22 levels and IL-22-rs1179251 gene polymorphism were evaluated using ELISA and RFLP-/PCR techniques, respectively. Key findings: Findings demonstrated that there were significantly higher levels of IL-22 in case groups (H-Tens, CAD + H-Tens, and CAD) compared to the Ctr group (P = 0.001, P = 0.014, and P < 0.001, respectively). Moreover, atorvastatin, losartan and captopril were administered significantly more in patients compared to the Ctr group. The results indicated a decreased risk of CAD + H-Tens of rs1179251 dominant genetic model (OR = 0.324; 95% C I = 0.121-0.873; P = 0.026). Significance: Atorvastatin, losartan and captopril may be led to upregulation of IL-22 in CAD and hypertensive patients. Meanwhile, higher levels of circulating IL-22 could contribute to alleviating the hypertension and CAD conditions. The G allele of IL-22 rs1179251 may be a protective factor for concomitant hypertension and CAD.
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