Generation of excessive reactive oxygen species (ROS) and advanced glycation end products (AGEs), and cellular apoptosis are implicated in the pathogenesis of diabetic neuropathy. Present study was aimed to explore the effect of Eruca sativa and Kaempferol (KP) on hyperalgesia (thermal and mechanical); tactile allodynia, motor nerve conduction velocity (MNCV) and oxidative-nitrosative stress in streptozotocin (STZ) induced experimental diabetes. Neuropathy developed in diabetic rats was evident from a marked hyperalgesia and allodynia; reduced MNCV associated with excess formation of AGEs and ROS. Chronic treatment with E. sativa hydroalcoholic extract (EHA; 100, 200 and 400 mg/kg) and KP (5 and 10 mg/kg) for 30 days starting from the 60th day of STZ administration significantly ameliorated behavioral and biochemical changes linked to diabetic neuropathy. Present study suggested that EHA and KP corrected hyperglycemia and reversed the pain response partially in diabetic rats along via modulating oxidative and nitrosative stress along with reduction of AGEs formation in diabetic rats. Thus E. sativa might be beneficial in chronic diabetes, ameliorate the progression of diabetic neuropathy and may also find application in diabetic neuropathic pain.
The present study was aimed to evaluate advanced glycation end products (AGEs) inhibitory activity of alcohol and hydro-alcohol extract (DAE and DHE) of Dillenia indica L. (Family: Dilleniaceae) and its potential in treatment of diabetic nephropathy by targeting markers of oxidative stress. D. indica was evaluated for its in vitro inhibitory activity against formation of AGEs by using bovine serum albumin. Diabetes was induced in male Wistar rats by streptozotocin (65 mg/kg i.p.) 15 min after nicotinamide (230 mg/kg, i.p.) administration. Diabetic rats were treated with different doses of extracts (100, 200 and 400 mg/kg) to analyze their nephroprotective effect. Tissue antioxidant enzymes level was measured along with the formation of AGEs in kidney to assess the effect of D. indica in ameliorating oxidative stress. D. indica showed significant inhibition of AGEs formation in vitro. D. indica produced significant attenuation in the glycemic status, renal parameter, lipid profile and level of antioxidant enzymes proving efficacy in diabetic nephropathy. Moreover, D. indica produced significant reduction in the formation of AGEs in kidneys. The present study concludes that D. indica as a possible therapeutic agent against diabetic nephropathy.
Optimization of biomarkers for a clinical situation requires a prospective validation in large numbers of patients with diabetic nephropathy and needs to be performed in different critically ill populations.
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