Trigonella foenum-graecum L. seed extract modulates biochemical and histomorphological changes in therapeutic model of high-fat diet-fed ovariectomized rats

Abstract

This study investigates the therapeutic effect of petroleum ether fraction of Trigonella foenum-graecum L. (PE-TFG) seed extract in ovariectomized rats fed with high-fat diet. Rats were randomly grouped into sham ovariectomy (S.OVX), ovariectomy + high-fat diet (OVX + HFD), and treatment groups. The blood samples were collected, and lipid profile, glucose, hepatic markers, and inflammatory markers were estimated. Liver, kidney, and common carotid artery were isolated for histopathological observations. Liver samples were tested for antioxidant, oxidative stress markers, mRNA expression of adiponectin, and PPAR-γ. PE-TFG treatment significantly decreased total cholesterol (18%), LDL (20%), hepatic markers (28%), leptin (17%), TNF-α (21%), and increased mRNA expression of adiponectin and PPAR-γ. There was also micro- and macro-hepatic steatosis, inflammation in the liver, deteriorated tubules in the kidney, and increased tunica intima and media thickness of the common carotid artery. These pathological alterations were reversed with PE-TFG administration. This impact might be linked to phytoestrogens and other components in PE-TFG such as diosgenin, phenols, and flavonoids.