title: In vivo effect of Trigonella foenum graecum on the expression of pyruvate kinase, phosphoenolpyruvate carboxykinase, and distribution of glucose transporter (GLUT4) in alloxan-diabetic rats.
abstract: Plasma glucose levels are maintained by a precise balance between glucose production and its use. Liver pyruvate kinase (PK) and phosphoenolpyruvate carboxykinase (PEPCK), 2 key enzymes of glycolysis and gluconeogenesis, respectively, play a crucial role in this glucose homeostasis along with skeletal muscle glucose transporter (GLUT4). In the diabetic state, this balance is disturbed owing to the absence of insulin, the principal factor controlling this regulation. In the present study, alloxan-diabetic animals having high glucose levels of more than 300 mmol/L have been taken and the administration of Trigonella seed powder (TSP) to the diabetic animals was assessed for its effect on the expression of PK and PEPCK in liver and GLUT4 distribution in skeletal muscle of alloxan-diabetic rats. TSP treatment to the diabetic animals resulted in a marked decrease in the plasma glucose levels. Trigonella treatment partially restored the altered expression of PK and PEPCK. TSP treatment also corrected the alterations in the distribution of GLUT4 in the skeletal muscle.
authors.affiliation: Hormone and Drug Research Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India.
authors.forename: Sameer
authors.initials: S
authors.lastname: Mohammad
authors.forename: Asia
authors.initials: A
authors.lastname: Taha
authors.forename: Kamal
authors.initials: K
authors.lastname: Akhtar
authors.forename: R N K
authors.initials: RN
authors.lastname: Bamezai
authors.forename: Najma Zaheer
authors.initials: NZ
authors.lastname: Baquer
mesh_terms: D000818:Animals; D001786:Blood Glucose / Q000187:drug effects; D001835:Body Weight / Q000187:drug effects; D003921:Diabetes Mellitus, Experimental / Q000097:blood / Q000188:drug therapy / Q000378:metabolism*; D005260:Female; D051275:Glucose Transporter Type 4 / Q000378:metabolism*; D008099:Liver / Q000187:drug effects / Q000201:enzymology; D010936:Plant Extracts / Q000494:pharmacology / Q000627:therapeutic use; D011208:Powders / Q000494:pharmacology; D017346:Protein Serine-Threonine Kinases / Q000378:metabolism*; D011770:Pyruvate Kinase / Q000378:metabolism*; D051381:Rats; D017208:Rats, Wistar; D012639:Seeds / Q000737:chemistry; D014018:Tissue Distribution; D016896:Treatment Outcome; D029910:Trigonella / Q000737:chemistry
chemical_list: D001786:Blood Glucose; D051275:Glucose Transporter Type 4; D010936:Plant Extracts; D011208:Powders; C495694:Slc2a4 protein, rat; C069767:phosphoenolpyruvate carboxylase kinase; D011770:Pyruvate Kinase; D017346:Protein Serine-Threonine Kinases