EVALUATION OF HYPOGLYCEMIC AND HYPOLIPIDEMIC EFFECTS OF INTERNAL SEPTUM OF WALNUT FRUIT IN ALLOXAN-INDUCED DIABETIC RATS

Background: Todays, the popularity of herbal medicine is increasing worldwide. Due to importance the evaluation of medicinal herbs efficacy and safety, the present study was conducted to investigate the antidiabetic and hypolipidemic effects of internal septum of walnut fruit (ISWF) ethanolic extract in diabetic rats. Materials and methods: Alloxan diabetic rats treated orally with ethanolic extract of ISWF (0-400mg/kg) for 28 days. To evaluate its anti-diabetic activity, the animals fasting blood glucose were determined on the first, 14th and 29th days. Moreover, oral glucose tolerance test (OGTT) was performed in diabetic rats at the last day of the study. After 24h of last administration, the blood samples were collected, and the Plasma lipids and liver enzymes levels were measured in fasting overnight rats. Results: The extract significantly decreased blood glucose (

Cardioprotective effects of ranitidine against ischemia-reperfusion injury in mice

Background and Aim: Cardiovascular diseases are the leading cause of morbidity and mortality worldwide. Increased histamine level in the cardiac tissue has deleterious effects after ischemia-reperfusion occurrence. Regarding the existence of histamine type 2 receptors in the heart and their decisive role in inflammation, in the present study the cardioprotective effects of ranitidine in the factors effective gainst LV functions and the extent of the infarcted area were studied. Materials and Methods: Thirty-two male Balb/C mice were divided into 4 equal groups. The control group received saline the others were administered 400 mg/kg ranitidine, ip. Group RE just on the test day R14 and R28 groups for 14 and 28 consecutive days, respectively. Then, the hearts of the subjects were isolated and subjected to Langendorff-perfusion with induced global ischemia for 30 minutes followed by reperfusion of 60 minutes. Left ventricular systolic (LVSP), and end diastolic pressures (LVEDP), heart rate (HR) and coronary flow (CF) were measured, and left ventricular developed pressure (LVDP= LVSP-LVEDP) and contractility (+dp/dt) calculated. Myocardial infarct size was determined by triphenyltetrazolium chloride staining. Results: Ranitidine can significantly increase LVSP and decrease infarct size especially in R28 compared to the control group (P<0.01). Conclusion: It was found that ranitidine of 400 mg/kg dose, esp. during chronic phase can be cardioprotective against ischemia-reperfusion damage through improvement of cardiac performance

Effects of hydro.alcoholic extract of internal septum of walnut on diabetic nephropathy in rats

Background and Aim: Due to the rapid growth of global interest in use of herbal medicine, their efficacy and safety evaluation have become important. In recent studies, internal septum of walnut fruit suggested as a hypoglycemic agent. Therefore, the present work was conducted to evaluate the effects of ethanolic extract of internal septum of walnut fruit (ISWF) on some biochemical and pathological aspects related to renal function in diabetic rats. Materials and Methods: In this experimental research 32 acute Alloxan induced diabetic and 8 healthy rats divided into 5 equal group and treated orally once per day for 1 month as fallow diabetic groups I and II received 200 and 400 mg/kg of ISWF extracts, diabetic group III received 50 mg/kg metformin and diabetic group IV and healthy group received saline 0.9% as control groups. Finaly, fasting blood glucose (FBG), 24h urine total protein (UTP), blood nitrogen urea (BUN) and plasma cratinine (Cr) were assessed biochemically and also quantitative and qualitative renal histopathological altrations for 1200 glomerulus were determined patologically. Results: In compare to diabetic control group, the ethanolic extract of ISWF in dose independence manner significantly reduced (p≤0.05) FBG, UTP, BUN and Cr, as well as glomerular space, tuft-to-capsule adhesion and mesangial matrix expansion in diabetic rats. Conclusion: The ethanolic extracts of ISWF have beneficial effects on renal function in diabetic rat