期刊
ARCHIVES OF PHYSIOLOGY AND BIOCHEMISTRY
卷 128, 期 5, 页码 1283-1289出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/13813455.2020.1767148
关键词
Cardiac Na plus -K plus -ATPase; cardiometabolic syndrome; triglyceride; hyperinsulinemia; hypeuricaemia
Previous studies have shown that the accumulation of cardiac triglycerides and impaired Na+-K+-ATPase activity are linked to diabetes-related cardiovascular disease, particularly in women. This study aimed to investigate the effects of allopurinol (ALL) and valproic acid (VPA) treatment on cardiac triglycerides and Na+-K+-ATPase activity in rats with combined oral contraceptive (COC)-induced dysglycemia, independent of circulating aldosterone levels. The results showed that both ALL and VPA treatment effectively improved the related symptoms in COC-treated rats, regardless of the aldosterone levels.
Context: Studies have shown that cardiac triglyceride accumulation and impaired Na+-K+-ATPase activity are linked to diabetes- related cardiovascular disease, particularly in women. Objectives: We hypothesised that allopurinol (ALL) and valproic acid (VPA) treatment would improve cardiac triglyceride and Na+-K+-ATPase activity independent of circulating aldosterone in Combined Oral Contraceptive (COC)-induced dysglycemia Materials and methods: Rats received COC (1.0 mu g ethinylestradiol and 5.0 mu g levonorgestrel; po) with or without ALL (1 mg; po) and VPA (20 mg; po) for 6 weeks. Results: COC-treatment led to impaired glucose tolerance, accumulated abdominal fat, dyslipidemia, elevated plasma MDA, PAI-1 and aldosterone levels and also reduced plasma nitric oxide bioavailability and cardiac Na+-K+-ATPase activity. However, either ALL or VPA treatment ameliorated these alterations comparably independent of elevated aldosterone level Discussion and conclusion: Our results suggest that either ALL or VPA would improve cardiac TG and Na+-K+-ATPase activity comparably in COC-treated rats, regardless of circulating aldosterone level.
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