Improvement of high glucose toxicity-induced insulin desensitivity by nitric oxide in diabetic rats / 中华内分泌代谢杂志

Objective To observe whether nitric oxide (NO) improves high glucose toxicity induced insulin resistance in streptozotocin (STZ) induced diabetic rats. Methods The changes of metabolic clearance rate for glucose (MCR), as the index of insulin effect, were observed in 24 STZ induced diabetic rats and 24 normal rats in awake condition treated by sodium nitroprusside (SNP), N G monomethyl L arginine (LNMMA), adenosine or saline duringeuglycemichyperinsulinemiaclampprocedure.Results MCR in saline treated diabetic rats 〔(7.2?0.8)ml?kg -1 ?min -1 〕 wassignificantlylowerthanthat in normol control rats 〔(18.0?1.8)ml?kg -1 ?min -1 , P