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| | Aim The side and toxic effects on reproductive system of female rat caused bycompositus GTW were observed. Methods In three dosages (11. 27 g· kg-1, 5. 64g·kg-1 and 2. 82 g· kg-1 of each ary herbs), the 13 specified traditional Chinesemedical herbs, including Trichosanthes Kirilowii, dendronium clavatum, Paeonia lac-tiflora, et al. were detected and concentrated to 10 ml· kg-1 decoctums. The decoc-tums were each mixed with 30 g·kg-1 GTW to compose the GTW compounds. GTWand GTW compounds, in the same dose, w... | | 目的 探讨复方雷公藤多甙对雌性大鼠生殖系统的影响.方法 以瓜蒌、石斛、白勺、川芎、生地、当归、五味子、菟丝子、构杞子、车前子、复盆子、益母草、泽兰组成的中药复方,其水提剂11.27,5.64,2.82 g·kg~(-1)与雷公藤多甙组成复方雷公藤多甙给大鼠ig.结果 三个剂量的复方雷公藤多甙均能不同程度地纠正雷公藤多甙导致的大鼠动情周期异常、子宫重量减轻及子宫肌层变薄,各实验组卵巢未见明显变化.结论 复方雷公藤多甙对雌性大鼠生殖系统的毒副作用明显低于雷公藤多甙. | | 文摘来源 | | Objective To investigate the effects of cadmiun (Cd)on female gonads, especially the stimulating reaction of pituitary and ovary to sexual hormones ; Methods SD female rats were given subcutan eously with the different doses of Cd for 6 weeks(5 days a week, daily) and the estrus cycle of rats was observed, the changes of Cd levels in serum, ovary and uterus were measured, respectively, the gonadotrpic-release hormons (GnRH)stimulating test were carried out in rats, with the serum FSH and LH level determ... | | 目的 研究镉的雌性性腺毒性及其机制 ,为镉中毒防治研究提供科学依据。方法 不同剂量对雌性大鼠行亚慢性皮下注射染毒 (每天 1次 ,每周 5d ,连续 6周 )。染毒 2 0d后连续观察并记录动情周期 ;于染毒结束时进行促性腺激素释放激素 (GnRH)刺激试验 ,采用放免法测定FSH、LH变化 ;采用原子吸收光谱法测定卵巢、子宫、血清镉含量 ;将小鼠随机分成 3组 ,连续染镉 5d ,每天 1次 ,染毒第 6天进行超排卵试验。结果 ( 1)染毒组大鼠子宫、卵巢镉含量均高于低剂量组和对照组 (P <0 0 5 )且子宫镉与卵巢镉、血清镉含量有明显相关性 ;( 2 )高剂量组大鼠动情间期和动情周期异常率较其他剂量组明显增高 (P <0 0 5 ) ;( 3)注射GnRH前 ,各剂量组间大鼠血清中LH、FSH差异未见显著性 (P <0 0 5 ) ,注射GnRH后 ,各剂量组血清中LH、FSH水平较注射前均明显升高 ,差异有显著性 (P <0 0 5 ) ,而注射后染镉组大鼠血清中LH水平显著低于对照组 (P <0 0 5 ) ,FSH则否 ;( 4 )染镉小鼠超数排卵... | | 文摘来源 | | To investigate the effects of phoxim on the ovarian antioxidant function. Phoxim was administrated per os to the adult female Sprague Dawley rats at a dose of 5.88,29.4 or 98 mg·kg -1 for one month. Vaginal smears of rats were taken to determine estrous cycle. Some organs such as ovary,uterus,brain,liver,spleen,kidney and adrenal were removed and organ coefficients were calculated. The activities of superoxide dismutase(SOD) and glutathione-s-transferase (GST),and the levels of malondialdehyde(MDA) an... | | [目的 ]研究辛硫磷 (phoxim ,pho)对大鼠卵巢抗氧化系统功能的影响。 [方法 ]雌性SD大鼠经口染毒农药辛硫磷 ,剂量为 5 .88、2 9.4和 98.0mg·kg-1,对照组给予等量色拉油。阴道脱落细胞涂片法观察动情周期变化 ,连续染毒 3 0d后处死 ,分离卵巢、子宫、脑、肝、脾、肾、肾上腺等脏器 ,计算脏器系数 ;分光光度法测定大鼠卵巢组织和血清中的超氧化物歧化酶 (SOD)、谷胱甘肽硫转移酶 (GST)的活性以及丙二醛 (MDA)、谷胱甘肽 (GSH)的含量 ;提取卵巢组织的DNA ,进行琼脂糖凝胶电泳 ,观察DNA完整性 ;免疫组化SP法观察bcl 2蛋白在卵巢组织中的表达。 [结果 ]各染毒组大鼠的动情周期异常率均高于对照组 ,体重增长均低于对照组 ,其中高剂量组与对照组相比差异具有显著性 ;各染毒组大鼠的卵巢、子宫重量均显著降低 ,卵巢中的SOD、GST和GSH水平均增高 ,MDA含量降低 ,血清中SOD、GST水平显著降低 ,MDA含量升高 ;卵巢bcl 2蛋白表达增强 ,低剂量组与对照组比较差别有显著性。 [结论 ]在 5 .88、2 9.4和 98.0... | | 文摘来源 | |   |
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