Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Tabuk, Tabuk, Kingdom of Saudi Arabia.
Department of Biochemistry, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Sharkia, Egypt.
Biol Trace Elem Res. 2023 Oct;201(10):4758-4768. doi: 10.1007/s12011-023-03569-4. Epub 2023 Jan 25.
This work investigated the impact of vitamin K2 and selenium co-supplementation on metabolic profile and indicators of cardiovascular health in dyslipidemic rabbits. Fifty adult male rabbits were equally allocated into 5 groups: Control group, Dyslipidemic group: received 0.5% cholesterol in diet for 12 weeks, groups 3, 4 and 5 dyslipidemic rabbits daily treated with vitamin K2 (10 mg/kg bw) or/and selenium (1 mg/kg bw) for 8 weeks. Co-supplementation of vitamin K2 and selenium significantly decreased body weight gain and blood pressure elevation in dyslipidemic rabbits compared to un-treated ones. Consuming vitamin K2 plus selenium also markedly lowered serum lipids encompassing cholesterol, triglycerides and LDL and elevated HDL relative to placebo. Additionally, such co-supplementation reduced fasting glucose and insulin, enhancing insulin sensitivity with respect to placebo. Regarding cardiovascular risk markers, dyslipidemic rabbits received vitamin K2 concurrently with selenium displayed lower levels of atherogenic index (LDL/HDL), serum C-reactive protein, heart fatty acid-binding protein and asymmetric dimethylarginine as well as aortic ox-LDL, lipid peroxidation and calcium but higher levels of serum nitric oxide and aortic total antioxidants than un-treated ones. Concomitant administration of vitamin K2 and selenium improved metabolic profile, markers of cardiovascular health and atherosclerosis in dyslipidemic rabbits.
本研究旨在探讨维生素 K2 和硒联合补充对血脂异常兔代谢特征及心血管健康指标的影响。将 50 只成年雄性兔等分为 5 组:对照组、血脂异常组:给予饮食中 0.5%胆固醇,共 12 周;3、4、5 组血脂异常兔每日给予维生素 K2(10mg/kg bw)或/和硒(1mg/kg bw),共 8 周。与未治疗组相比,联合补充维生素 K2 和硒可显著降低血脂异常兔的体重增加和血压升高。与安慰剂相比,维生素 K2 加硒的摄入还显著降低了血清胆固醇、甘油三酯和 LDL,升高了 HDL。此外,这种联合补充还降低了空腹血糖和胰岛素水平,提高了相对于安慰剂的胰岛素敏感性。关于心血管风险标志物,同时给予血脂异常兔维生素 K2 和硒,可降低致动脉粥样硬化指数(LDL/HDL)、血清 C 反应蛋白、心脏脂肪酸结合蛋白和不对称二甲基精氨酸以及主动脉氧化型 LDL、脂质过氧化和钙的水平,同时升高血清一氧化氮和主动脉总抗氧化剂的水平,与未治疗组相比。联合给予维生素 K2 和硒可改善血脂异常兔的代谢特征、心血管健康和动脉粥样硬化标志物。