Hyperglycemia Induction in HepG2 Cell Line

Background: Hyperglycemia is one of the important featurs of diabetes. In cell culture studies different methods are used to mimic the hyperglycemia condition. In this study we investigate response of human liver cancer cell line (HepG2) to high insulin, high glucose, and high insulin/ high glucose medium exposure.Methods: HepG2 cells were settled in DMEM+0.1% FBS or DMEM free-serum medium with high concentrations of d-glucose (30 mm) and/or insulin (1μM) for 24h after an overnight starving in serum- free medium. The level of hyperglycemia was estimated in the supernatants via GOD-POD method.Results: Serum-free madium with high insulin/ high glucose consentration made the higher level of hypreglycemia in HepG2 cells.Conclusions: Our study interduced high insulin/ high glucose treatment as the best way to induction hyperglycemia.

Hyperglycemia Induction in HepG2 Cell Line

Background: Hyperglycemia is one of the important featurs of diabetes. In cell culture studies different methods are used to mimic the hyperglycemia condition. In this study we investigate response of human liver cancer cell line (HepG2) to high insulin, high glucose, and high insulin/ high glucose medium exposure.Methods: HepG2 cells were settled in DMEM+0.1% FBS or DMEM free-serum medium with high concentrations of d-glucose (30 mm) and/or insulin (1μM) for 24h after an overnight starving in serum- free medium. The level of hyperglycemia was estimated in the supernatants via GOD-POD method.Results: Serum-free madium with high insulin/ high glucose consentration made the higher level of hypreglycemia in HepG2 cells.Conclusions: Our study interduced high insulin/ high glucose treatment as the best way to induction hyperglycemia.

Comparison of Serum LP-PLA2 Level and some Nutritional Factors between Well-Controlled and Poorly-Controlled Diabetic Patients

Lipoprotein-associated phospholipase A2 (Lp-PLA2) is produced by inflammatory cells, bound to LDL and other lipoproteins, and hydrolyzes oxidized phospholipids in LDL. Type 2 diabetes is the most common form of diabetes some investigations show the association of lipoprotein-associated phospholipase A2 mass and activity with the incidence of cardiovascular disease (CVD) in populations with high prevalences of insulin resistance and diabetes. This study is a cross-sectional descriptive and analytic study on 80 individuals with diabetes referring to the Tehran Diabetes Association. Patients divided into two groups (well-controlled and poorly controlled) based on their HbA1C. Personal information, anthropometric assessments (including height, weight, waist circumference and hip circumference) and semi-quantitative 147 items FFQ was used and vein blood samples were taken. After plasma separation, blood sample used for FBS, HbA1c and LP-PLA2 measurement. The independent sample T test was used for comparing means. Data analyses showed a significant difference between weight and WHR (waist to hip ratio) means in two studied groups, also there was a statistically significant difference in food intake (Energy, carbohydrate, protein, micronutrients percent and some of the micronutrients). FBS, HbA1C and LP-PLA2 means showed statistically significant difference (P<0/001) between two groups. This study showed LP-PLA2 is elevated in poorly-controlled patients compared to well-controlled diabetic patients, which may suggest some nutritional factors contributing to the regulation of this enzyme