Nutrition, metabolism, and cardiovascular diseases : NMCD · 2020
Effects of soy isoflavones on serum lipids and lipoprotein (a) in peritoneal dialysis patients.
СтатьяРандомизированное исследованиеПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Yari Zahra, Tabibi Hadi, Najafi Iraj, Hedayati Mehdi, Movahedian Mina
Аннотация
BACKGROUND AND AIM: Lipid abnormalities are common in peritoneal dialysis (PD) patients and no effective treatment to decrease serum lipoprotein (a) [Lp(a)] in dialysis patients is known so far. Therefore, this research was designed to investigate the effects of soy isoflavone supplement on serum lipids and Lp(a) in PD patients.
METHODS & RESULTS: In this randomized, double-blind, placebo-controlled trial, 40 PD patients were randomly assigned to either the isoflavone or the placebo group. The patients in the isoflavone group received 100 mg soy isoflavone daily for 8 weeks, whereas the placebo group received corresponding placebos. At baseline and the end of the 8th week, 7 mL of blood was obtained from each patient and serum triglycerides, total cholesterol, low density lipoprotein-cholesterol (LDL-C), high density lipoprotein-cholesterol (HDL-C), and Lp(a) were measured. Serum Lp(a) reduced significantly up to 10% in the isoflavone group at the end of week 8 compared to baseline (P < 0.05), and the reduction was significant in comparison with the placebo group (P < 0.05). Serum HDL-C increased significantly up to 11.5% in the isoflavone group at the end of week 8 compared to baseline (P = 0.05), and the increment was significant in comparison with the placebo group (P < 0.05). There were no significant differences between the two groups in mean changes of serum triglycerides, total cholesterol, and LDL-C.
CONCLUSIONS: This study indicates that daily administration of 100 mg soy isoflavones reduces serum Lp(a) and increases HDL-C concentration which are two determinants of cardiovascular disease in PD patients. CLINICALTRIALS.GOV: NCT03773029.
REGISTRATION NUMBER AND DATE: NCT03773029 - 2018.
METHODS & RESULTS: In this randomized, double-blind, placebo-controlled trial, 40 PD patients were randomly assigned to either the isoflavone or the placebo group. The patients in the isoflavone group received 100 mg soy isoflavone daily for 8 weeks, whereas the placebo group received corresponding placebos. At baseline and the end of the 8th week, 7 mL of blood was obtained from each patient and serum triglycerides, total cholesterol, low density lipoprotein-cholesterol (LDL-C), high density lipoprotein-cholesterol (HDL-C), and Lp(a) were measured. Serum Lp(a) reduced significantly up to 10% in the isoflavone group at the end of week 8 compared to baseline (P < 0.05), and the reduction was significant in comparison with the placebo group (P < 0.05). Serum HDL-C increased significantly up to 11.5% in the isoflavone group at the end of week 8 compared to baseline (P = 0.05), and the increment was significant in comparison with the placebo group (P < 0.05). There were no significant differences between the two groups in mean changes of serum triglycerides, total cholesterol, and LDL-C.
CONCLUSIONS: This study indicates that daily administration of 100 mg soy isoflavones reduces serum Lp(a) and increases HDL-C concentration which are two determinants of cardiovascular disease in PD patients. CLINICALTRIALS.GOV: NCT03773029.
REGISTRATION NUMBER AND DATE: NCT03773029 - 2018.