灵芝孢子粉对雄性糖尿病大鼠睾丸细胞色素C、线粒体钙影响的研究

目的:观察灵芝孢子对2型糖尿病大鼠睾丸组织中细胞色素C(Cyt-C)及线粒体钙的影响。方法:Wistar雄性大鼠50只,随机分成3组(对照组、模型组、灵芝孢子粉组)。模型组及灵芝孢子粉组大鼠经尾静脉一次性按25mg/kg体重注射2%链脲佐菌素(STZ),对照组尾静脉注射等量枸橼酸缓冲液。正常饮食喂养2周后,进行糖耐量试验,模型组和灵芝孢子粉组以糖耐量异常者保留,余去除,并改喂高脂高糖饮食,灵芝孢子粉组另加灵芝孢子粉[250mg/(kg·d)]持续10周,实验结束前1天做糖耐量试验,取双侧睾丸检测相关指标。结果:模型组睾丸线粒体Cyt-C、线粒体钙均显著低于对照组和灵芝孢子粉组(P<0.05),胞质Cyt-C显著高于对照组和灵芝孢子粉组(P<0.05)。结论:Cyt-C、钙离子参与2型糖尿病大鼠睾丸组织损伤,灵芝孢子粉对糖尿病大鼠睾丸组织具有保护作用。

Effects of Ganoderma Lucidum Spores on Cytochrome C and Mitochondrial Calcium in the Testis of NIDDM Rats

OBJECTIVE: To observe the effects of Ganoderma lucidum spores on Cytochrome C (Cyt-C) and mitochondrial calcium in the testis of NIDDM rats. METHODS: Fifty male Wistar rats were divided randomly into three groups: model, ganoderma and normal control, the first two groups injected with 2% STZ through vena caudalis, and the last one with half-and-half sodium citrate/citrate buffer solution. Two weeks after normal diet, glucose tolerance tests were performed and the rats with abnormal glucose tolerance from the model and ganoderma groups received high-fat and high-carbohydrate food, the ganoderma group given Ganoderma lucidum spores (250mg/[ kg x d] ) in addition, both for 10 weeks. Glucose tolerance tests were repeated 1 day before the end of the experiment and the rats were castrated and relevant indexes measured. RESULTS: The NIDDM model was successfully constructed. In the model group, the levels of mitochondrial Cyt-C and mitochondrial calcium were significantly lower (P <0. 05) while that of the plasma Cyt-C was significantly higher than in the ganoderma and the control groups. CONCLUSION: Cyt-C and calcium ion are involved in the damage of the testis. Ganoderma lucidum spores can protect the testis of NIDDM rats.