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镉对大鼠精囊腺超微结构及硫胺素焦磷酸酶细胞化学和血清睾酮含量的影响 被引量:19
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作者 徐晨 李维信 《解剖学报》 CAS CSCD 北大核心 1997年第3期314-318,共5页
以超微结构形态计量学及硫胺素焦磷酸酶(TPPase)细胞化学和血清睾酮放射免疫测定等,探讨镉对大鼠精囊腺的影响及其作用机理。结果表明,大鼠腹腔内注射氯化镉(2mg/kg体重)后1h,主细胞超微结构出现改变,TPPas... 以超微结构形态计量学及硫胺素焦磷酸酶(TPPase)细胞化学和血清睾酮放射免疫测定等,探讨镉对大鼠精囊腺的影响及其作用机理。结果表明,大鼠腹腔内注射氯化镉(2mg/kg体重)后1h,主细胞超微结构出现改变,TPPase反应产物开始减少,15~30d退变最明显,60d呈恢复趋势。主要改变为线粒体肿胀,高尔基复合体囊泡扩大,髓样结构及脂滴增多。注射后15d,主细胞大分泌颗粒体密度、面数密度明显减少,30d消失,60d有所恢复。大分泌颗粒直径于3d开始减小,15d降至正常直径1/2,60d仍未恢复。注射镉后7d血清睾酮含量显著降低,60d仍未恢复正常。提示镉对精囊腺有早期直接损伤作用,睾酮下降及毛细血管内皮损伤则又加速精囊腺退变。 展开更多
关键词 精囊腺 超微结构 硫胺素焦磷酸酶 睾酮
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The Ultracytochemical Effects of High Energy Shock Wave on Rabbit Liver
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作者 张东生 金立强 洪大蓉 《The Journal of Biomedical Research》 CAS 1997年第1期45-51,共7页
The ultracytochemical effects in the liver of rabbit undergoing high energy shock wave (HESW) were studied with electron microscope. The application of lanthanum as a tracer for ultrastructural study demonstrated that... The ultracytochemical effects in the liver of rabbit undergoing high energy shock wave (HESW) were studied with electron microscope. The application of lanthanum as a tracer for ultrastructural study demonstrated that intracellular lanthanum could be observed, most of which entered the hepatocytes and its mitochondria. The lanthanum granules were also found to deposite in the zone of tight junctions of bile canaliculi, which indicated that the tight junctions had been damaged. The activities of succinate dehydrogenase (SDH) in liver cells, alkaline phosphatase (ALP) and thiamine pyrophosphatase (TPPase) on the wall of bile canaliculi became diminished obviously. Both the activites and localizations of TPPase had changed. Some TPPase from the damaged lysosome like vesicles and Golgi saccules of liver cells discharged into cytoplasm. TPPase reaction production in some bile canaliculi decreased. In the intercellular space of the liver cells and the tight junctions of bile canaliculi TPPase reaction could be seen. Ultrastructurally, the changes commonly seen were hydropic mitochondria and dilatation of rough endoplasmic reticulum. Serologic test demonstrated that there was an abnormal change of SGPT, SGOT and ALP. The results showed that HESW can damage the ultrastructure and function of liver. 展开更多
关键词 lanthanum nitrate succinate dehydrogenase alkaline phosphatase thiamine pyrophosphatase high energy shock wave ultracytochemistry
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前列腺良性增生的5′-核苷酸酶和硫胺素焦磷酸酶定位及其活性的观察
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作者 施联蓉 张一 潘天明 《解剖学报》 CAS 1985年第3期320-324,350,共6页
用光镜和电镜研究了人类前列腺增生的上皮细胞内5′-核苷酸酶(5′-Nase)和硫胺素焦磷酸酶(TPPase)的活性。5′-Nase活性定位分布在上皮细胞的溶酶体、高尔基大泡、小泡、分泌泡以及游离面的质膜,腺腔内分泌物质也呈阳性反应。经克念菌... 用光镜和电镜研究了人类前列腺增生的上皮细胞内5′-核苷酸酶(5′-Nase)和硫胺素焦磷酸酶(TPPase)的活性。5′-Nase活性定位分布在上皮细胞的溶酶体、高尔基大泡、小泡、分泌泡以及游离面的质膜,腺腔内分泌物质也呈阳性反应。经克念菌素治疗后,酶活性无明显改变;然而用乙烯雌酚治疗后,酶活性稍弱;睾丸切除后的则完全呈阴性反应。TPPase活性定位在高尔基扁平囊泡的凹面,除睾丸切除后的酶反应完全阴性外,其他各种治疗,对酶活性没有明显改变。 展开更多
关键词 5′-核苷酸酶 溶酶体 高尔基大泡和小泡 高尔基扁平囊泡 硫胺素焦磷酸酶 克念菌素 乙烯雌酚
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