18 research outputs found
Effects of Tusi Erxian Decoction on sperm motility, malondialdehyde and superoxide dismutase in seminal plasma of asthenospermia patients with syndrome of deficiency of kidney yang
目的:探讨菟丝二仙汤治疗肾阳虚型弱精子症的疗效及相关机制。方法:180例肾阳虚型弱精子症患者随机分为菟丝二仙汤组、右归丸组、西药组(辅酶Q10胶; 囊、维生素E、维生素C),每组60例,分别治疗3个月。比较各组治疗前后精液参数,检测精浆丙二醛(MDA)和超氧化物歧化酶(SOD)变化,比较临床; 疗效。结果:菟丝二仙汤组在改善a级精子、精子活力、精子活率明显优于右归丸以及西药组(P<0.01),同时其能显著降低精浆MDA浓度,提高精浆SO; D水平(P<0.01);组间临床疗效比较,菟丝二仙汤对肾阳虚型弱精子症疗效明显优于右归丸组与西药组(P<0.05)。结论:菟丝二仙汤可以明显提高; 肾阳虚型弱精子症患者的精液质量,增强精子的抗氧化作用可能是其治疗弱精子症的机制之一。Objective: To investigate the effects and mechanism of Tusi Erxian; Decoction in treating asthenospermia with syndrome of deficiency of; kidney yang. Methods: A total of 180 patients were included and randomly; divided into 3 groups: Tusi Erxian Decoction group, Yougui Pills group,; and the western medicine group (coenzyme Q10 capsule, vitamin E and; vitamin C), 60 cases per group. Each group was treated by the; corresponding drugs for 3 months. The sperm parameters, malondialdehyde; (MDA) and superoxide dismutase (SOD) were detected to compare the; clinical efficacy. Results: The Tusi Erxian Decoction could; significantly improve a-level sperm, sperm motility and sperm activity; when compared with the Yougui Pills group and the western medicine group; (P<0.01). Meanwhile, Tusi Erxian Decoction could decrease the; concentration of MDA and increase SOD in the seminal plasma (P<0.01).; Clinical efficacy in the Tusi Erxian Decoction group was significantly; better than that in the Yougui Pills group and the western medicine; group (P<0.05). Conclusion: Tusi Erxian Decoction can improve the; quality of sperm of asthenospermia patients with syndrome of deficiency; of kidney yang by enhancing the antioxidant activity of spermatozoa.厦门市科技局科技计划项目; 厦门市卫计委第四批中医后备人才基金资助项
三峡库区汞污染的化学生态效应
测定长江三峡库区江段鲤、铜鱼、鲇、长吻Wei中的砷、洋、铅、硒、锌等元素的含理。比例匹配分析表明,样品或元素间无显著相关。铜鱼、鲤、鲇及长吻Wei对汞的富集系数×10^3,1.5×10^4、3.3×10^4,8.4×10^4(L/kg),这表明鱼体汞元素含量与鱼类在食物链营养级的位置密切相关,食物链越长,富集系数越高,鲤、鲇及长吻Wei的肌肉、肝、肾和脾洋含量比值约为6:2:1,而铜鱼为1:1:
三峡库区汞污染的化学生态效应
测定长江三峡库区江段鲤、铜鱼、鲇、长吻Wei中的砷、洋、铅、硒、锌等元素的含理。比例匹配分析表明,样品或元素间无显著相关。铜鱼、鲤、鲇及长吻Wei对汞的富集系数×10^3,1.5×10^4、3.3×10^4,8.4×10^4(L/kg),这表明鱼体汞元素含量与鱼类在食物链营养级的位置密切相关,食物链越长,富集系数越高,鲤、鲇及长吻Wei的肌肉、肝、肾和脾洋含量比值约为6:2:1,而铜鱼为1:1:
长江三峡库区江段沉积物的重金属污染特征
测定了三峡库区江段沉积物(63μm)中21个元素的含量。比例比配统计分析指出,重庆至涪陵江段的沉积物样品间无明显相关,涪陵至巴东江段的沉积物样品间在90%置信水平上显著相关;沉积物中钙、镁、锶、钡、铁、钻、镍、镉、锰、锌、铝、钒、镧、钇、钛等元素间在90%置信水平上有显著相关,但砷、锅、铜、汞、铅、磷等元素间以及它们与上述元素间无显著相关。这表明涪陵以上江段的沉积物因受重庆和长寿污染影响大,样品间的相似性小,而涪陵以下江段的沉积物受污染影响小,样品间存在较好的相似性。元素间相关性的差异反映出了砷、镉、铜
水库鱼体汞积累的预测
回归分析表明,在所研究的长江流域的12个水库中,水库与河流鲤鱼汞含量的比值F与水库集水面积A和径流量Q的比值呈显著的负相关:F=2.5096-0.48047A/Q(r=0.795,n=12)凤滩水库调查结果证实了此回归方程的可靠性。实测的F值与预测值比较,相对误差为23.1%。用此模型预测三峡大坝建成蓄水后将加剧鱼体对汞的生物富集作用,局部水域存在鱼体汞含量超过我国食品汞含量标准的可能性。本文讨论了河流与水库中鱼体对砷、汞、硒、铅和镉元素积累的特点。比较其富集系数指出,在同一水系中,河流的鲤鱼对砷和硒的