机构地区:[1]新疆医科大学第四附属医院内分泌科,新疆维吾尔自治区乌鲁木齐市830061
出 处:《中国组织工程研究》2022年第32期5091-5096,共6页Chinese Journal of Tissue Engineering Research
基 金:新疆维吾尔自治区自然科学基金项目(2019D01C174),项目负责人:叶婷。
摘 要:背景:温通活血乳膏具有改善氧化应激、降低血黏度、恢复微循环、减轻糖尿病周围神经损伤、抑制感觉传导和痛觉形成的作用,但其调控作用机制尚不清楚。目的:观察温通活血乳膏对糖尿病周围神经病变大鼠JNK信号通路蛋白及炎性因子的影响。方法:取成年雄性Wistar大鼠,建立糖尿病周围神经病变模型。将造模成功的40只大鼠随机分5组,每组8只,模型组、西药组后肢涂抹空白乳膏2 mL,其中西药组每天灌胃给予弥可保0.14 mg/kg,低、中、高剂量组后肢分别涂抹0.75,1.5,3.0 g/mL的温通活血乳膏2 mL,药膏涂抹2次/d,连续给药28 d;同时设立正常组(不造模不给药,n=6)。末次给药后,进行神经传导检测,采用ELISA法检测血清中白细胞介素6、白细胞介素18、肿瘤坏死因子α、超敏C-反应蛋白、髓鞘碱性蛋白的水平,Western blot法检测坐骨神经节中JNK、p-JNK的蛋白表达,RT-PCR法检测JNK mRNA的表达。结果与结论:①与正常组比较,模型组大鼠感觉与运动神经传导速度降低(P <0.05)。与模型组比较,中、高剂量组和西药组大鼠感觉神经传导速度升高(P <0.05),其中以高剂量组升高最明显(P <0.05);高剂量组和西药组大鼠运动神经传导速度升高(P <0.05)。②与正常组比较,模型组白细胞介素6、肿瘤坏死因子α、高敏C-反应蛋白、髓鞘碱性蛋白水平升高(P <0.05),白细胞介素18水平降低(P <0.05)。与模型组比较,中、高剂量组与西药组白细胞介素6、白细胞介素18、肿瘤坏死因子α、高敏C-反应蛋白、髓鞘碱性蛋白水平降低(P <0.05),其中以高剂量组、西药组效果更明显。③与正常组比较,模型组p-JNK蛋白及JNK mRNA表达水平升高(P <0.05)。与模型组比较,中、高剂量组及西药组p-JNK蛋白及JNK mRNA表达水平降低(P <0.05)。④结果表明,温通活血乳膏能够抑制JNK信号转导通路的异常激活,减轻糖尿病周围神经病变大鼠的炎症反应BACKGROUND:Wentong Huoxue Cream can improve oxidative stress,reduce blood viscosity,resto re mic rocirculation,relieve diabetic peripheral nerve injury,and inhibit sensory conduction and pain formation,but its regulato ry mechanism remains unclear.OBJECTIVE:To observe the effects of Wentong Huoxue Cream on JNK signaling pathway proteins and inflammatory factors in diabetic peripheral neuropathy rats.METHODS:A rat model of diabetic peripheral neuropathy was established in adult Wistar rats.Forty diabetic peripheral neuro pathy rats were randomly divided into five groups(n=8 per group):model group,low-,middle-and high-dose Wentong Huoxue Cream groups(given 2 mL of 0.75,1.5,3.0 g/mL Wentong Huoxue Cream to the lower limbs of rats,respectively) and Western medicine group(given 2 mL of control cream).Skin treatment in each group was performed twice a day for 28 days.Additionally,six rats were taken as normal group.After the last administration,nerve conduction tests were performed and the expressions of inte rleukin-6,interleukin-18,tumor necrosis factor a,high-sensitivity C-reactive protein,and myelin basic protein in serum were detected by ELISA.The expression of JNK and P-JNK protein in sciatic ganglia was detected by western blot and the expression of JNK mRNA was determined by RT-PCR.RESULTS AND CONCLUSION:The velocity of sensory nerve conduction and motor nerve conduction was significantly decreased in the model group compared with the normal group(P <0.05).Compared with the model group,the sensory nerve conduction velocity increased significantly after intervention with different doses of Wentong Huoxue Cream(P<0.05),especially in the high-dose Wentong Huoxue Cream group(P<0.05).Compared with the model group,the motor nerve conduction velocity was significantly increased in the high-dose Wentong Huoxue Cream group and Western medicine group(P <0.05).Compared with the normal group,the serum levels of interleukin-6,tumor necrosis factor α,high-sensitivity C-reactive protein,and myelin basic protein were signific
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