Animal Physiology Laboratory, Faculty of Sciences, BP 1171, 3000 Sfax, Tunisia.
Food Chem Toxicol. 2010 Aug-Sep;48(8-9):2407-12. doi: 10.1016/j.fct.2010.05.079. Epub 2010 Jun 4.
This study investigated the hypoglycemic and antioxidant effects of Flax and Pumpkin seeds mixture on the kidney of alloxan-induced diabetic rats. Animals were allocated into three groups of six rats each: a control group (CD), a diabetic group (DD) and diabetic rats fed with Flax and Pumpkin seeds mixture (DMS) group. The DD rats showed a significant increase of glycemia and lipid parameters such as total lipid, total cholesterol and triglycerides levels compared to those of the control group (CD). In addition, plasma and kidney malonaldialdehyde levels (MDA) were significantly increased compared to (CD) group. Antioxidant enzyme activities such as catalase (CAT), superoxide dismutase (SOD) and non-enzymatic levels of reduced glutathione (GSH) significantly decreased in the plasma and kidney of diabetic rats compared to those of controls. Diet supplemented with Flax and Pumpkin seeds mixture ameliorated the antioxidant enzymes activities observed in diabetic rats and significantly decreased MDA levels. Kidney histological sections, showed glomerular hypertrophy and tubular dilatation. In DMS rats, these histopathological changes were less prominent. Our results suggest that Flax and Pumpkin seeds mixture supplemented in diet of diabetic rats may be helpful to prevent diabetes and its complications.
本研究探讨了亚麻籽和南瓜籽混合物对链脲佐菌素诱导的糖尿病大鼠肾脏的降血糖和抗氧化作用。将动物分为三组,每组六只:对照组(CD)、糖尿病组(DD)和糖尿病大鼠喂食亚麻籽和南瓜籽混合物组(DMS)。与对照组(CD)相比,DD 组大鼠的血糖和血脂参数(如总脂质、总胆固醇和甘油三酯水平)显著升高。此外,与 CD 组相比,血浆和肾脏丙二醛(MDA)水平显著升高。与对照组相比,糖尿病大鼠的血浆和肾脏中的抗氧化酶活性(如过氧化氢酶(CAT)、超氧化物歧化酶(SOD)和非酶还原型谷胱甘肽(GSH)水平显著降低。饮食中补充亚麻籽和南瓜籽混合物可改善糖尿病大鼠观察到的抗氧化酶活性,并显著降低 MDA 水平。肾脏组织学切片显示肾小球肥大和肾小管扩张。在 DMS 大鼠中,这些组织病理学变化不那么明显。我们的结果表明,饮食中补充亚麻籽和南瓜籽混合物可能有助于预防糖尿病及其并发症。