谷胱甘肽对2型糖尿病周围神经病变患者血清氧化应激指标及感觉神经传导速度的影响

目的 观察2型糖尿病周围神经病变患者血清氧化应激相关指标的变化,探讨抗氧化剂--谷胱甘肽(GSH)对2型糖尿病周围神经病变患者的神经保护作用.方法 检测54例2型糖尿病周围神经病变患者(研究组)与30例健康体检者(对照组)血清中丙二醛(MDA)含量与超氧化物歧化酶(SOD)活性;将54例2型糖尿病周围神经病变患者按随机数字表法分为GSH组和CON组,每组27例.GSH组予GSH 1.8 g/d,CON组予B族维生素治疗,均治疗14 d.分别检测两组治疗前后MDA含量、SOD活性、双侧胫后感觉神经传导速度(SCV).结果 研究组MDA含量(7.23 ±2.31) μmol/L和SOD活性(59.72±13.58) kU/L,对照组MDA含量(4.87 ±1.17)μmol/L和SOD活性(76.19 ± 7.55)kU/L,研究组MDA含量高于对照组,SOD活性低于对照组,两组比较差异有统计学意义(P＜0.01);GSH组和CON组治疗后MDA含量下降,SOD活性升高,治疗前后比较差异有统计学意义(P＜0.05),但两组治疗后比较差异无统计学意义(P＞0.05).CON组治疗后SCV虽有上升但与治疗前比较差异无统计学意义(P＞0.05),而GSH组治疗后SCV显著增加(P＜0.05),两组治疗后比较差异有统计学意义(P＜0.05).结论 2型糖尿病周围神经病变患者体内存在氧化应激反应,GSH抗氧化治疗可以改善受损神经,较传统的营养神经治疗有较好的神经保护作用.

Abstract：

Objective To observe the change of oxidalive stress indexes in the patients with diabetic perineuropathy (DPN), and investigate the protection role of glutathione (GSH) on neuroprotective effect. Methods The levels of superoxide dismutase (SOD) and malondialdehyde (MDA) and sensory nerve conduction velocity (SCV) were detected in 54 cases with DPN (DPN group) and 30 cases of health examination (control group). Fifty-four cases with DPN were divided into GSH group (given basic treatment and GSH 1.8 g/d) and CON group(given basic treatment and B vitamin) with 27 cases each by random-digits table. After treatment of 2 weeks, the levels of SOD, MDA and SCV were compared. Results The levels of MDA in DPN group were significantly higher than those in control group, while the activity of SOD was significantly lower than that in control group (7.23 ±2.31) μmol/L vs. (4.87 ± 1.17) μmol/L, (59.72 ± 13.58) kU/L vs. (76.19 ± 7.55 ) kU/L](P＜ 0.01). After treatment, the level of MDA was decreased and the activity of SOD was increased in GSH group and CON group (P ＜0.05),but there was no significant difference between the two groups(P＞ 0.05). After treatment, the level of SCV was significantly increased in GSH group,while there was no significant difference in CON group (P ＞0.05). Conclusions Oxidative stress exists in DPN patients. The antioxidant treatment with GSH can improve impaired nerve and has a better effect of nerve protection than classical nerve nutrition therapy.

Effect of glutathione on the levels of serum superoxide dismutase, malondialdehyde and sensory nerve conduction velocity in diabetic perineuropathy

Objective To observe the change of oxidalive stress indexes in the patients with diabetic perineuropathy (DPN), and investigate the protection role of glutathione (GSH) on neuroprotective effect. Methods The levels of superoxide dismutase (SOD) and malondialdehyde (MDA) and sensory nerve conduction velocity (SCV) were detected in 54 cases with DPN (DPN group) and 30 cases of health examination (control group). Fifty-four cases with DPN were divided into GSH group (given basic treatment and GSH 1.8 g/d) and CON group(given basic treatment and B vitamin) with 27 cases each by random-digits table. After treatment of 2 weeks, the levels of SOD, MDA and SCV were compared. Results The levels of MDA in DPN group were significantly higher than those in control group, while the activity of SOD was significantly lower than that in control group (7.23 ±2.31) μmol/L vs. (4.87 ± 1.17) μmol/L, (59.72 ± 13.58) kU/L vs. (76.19 ± 7.55 ) kU/L](P＜ 0.01). After treatment, the level of MDA was decreased and the activity of SOD was increased in GSH group and CON group (P ＜0.05),but there was no significant difference between the two groups(P＞ 0.05). After treatment, the level of SCV was significantly increased in GSH group,while there was no significant difference in CON group (P ＞0.05). Conclusions Oxidative stress exists in DPN patients. The antioxidant treatment with GSH can improve impaired nerve and has a better effect of nerve protection than classical nerve nutrition therapy.