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  • 维力安治疗急性缺血性脑血管病神经功能康复的疗效

    作者:张国忠;董书桥;窦伟;陈沛源;杨玉庆;史洪润

    Background: Cytridini triphophatis(CTP) takes part in the synthesis of phospholipid and nucleic acid directly, and makes an important role in protecting structure of cell membrane and blood brain barrier to reduce nerve cell lesions from toxic metabolites.

  • 针刺配合中药离子导入治疗颈椎病123例

    作者:相永梅

    BACKGROUND:In treatment of cervical spondylopathy,Fengch'ih and Huat'ochiachi are selected to promote flow of qi and blood in channel.Drugs may reach affected focus by ion introduction and at the same time,series of physiological reactions such as electrolysis, electrophoresis and electrodialysis when direct current flow through body can affect pH,concentration of K+ ,Na+ ,Ca2+ ,Mg2+ and permeability of cell membrane producing analgesia effect.Vessels may also be dilated to promote local circulation and improve local nutrition and metabolism.

  • 作者:

    Abstract The present sutdy was designed to assess whether changes in glycolipids and cyclic AMP contents might serve as markers for the diagnosis of malignancy in the liver. The experimental model was a transplantable murine hepatoma. Experimental mice were divided into three groups:(1) a therapeutic group. which had been transplanted with hepatoma and treated with the antimetabolism drug 5-flurouracil(0.2mg/day i.p).(2) a control group, which had been transplanted with hepatoma and treated with 0.2ml 0.9% NaCl day and (3) a normal group of mice . The ganglioside and cAMP contents in the hepatoma tissue, plasma cAMP, total and lipid-bound sialic acid levels and red blood cell memebrane sialic acid levels were determined. Results showed that the ganglioside content, total and lipid-bound sialic acid levels in the control group were significantly higher than those in the livers of normal mice(P<0.01) while these respective values in the therapeutic group were significantly lower than those in the control group(P<0.01).The cAMP levels of tumor tissues and plasma in the control group were lower than those in normal mice. No significant difference in red blood cell membrane sialic acid content was observed between the therapeutic and control groups though levels for both were higher than those in normal mice. These results indicate that ganglioside ocntent and sialic acid levels in hepatoma tissues were significantly elevated, and cAMP levels in hepatoma tissues were significantly decreased during proliferation and abnormal differentiation.Key words transplantable hepatoma, gangliosides , sialic acid, cyclic adenosine mono-phosphate, 5-flurouracil摘自Molecular and cellular biochemistry, 2000; Vol 207,29~33该杂志摘要被美国科学引证索引(SCI)收录

  • 作者:

    AIM:Aquaporins (AQP) are very important for the water transport across cell membrane. There are at least 10 mammalian AQPs( aquaporins 0-9) distributed in various organs and different kinds of cells. Each AQP has a distinct organ distribution, and this distribution could be useful in presuming the biological function of the aquaporin. The aim of this study was to figure out the distribution of aquaporin 7 (AQP7) and aquaporin 8(AQP8).METHODS:Semi-quantified RT-PCR was employed in this research. The ratio of OD value of target gene products divided by which of control gene products was calculated. Among 35 organs, testis, epididymis, skin, muscle, rectum, lung, bronchus, lymph node, stomach, duodenum, jejunum, ileum, colon, pancreas, liver, gall bladder, spleen, mammary gland, uterus, placenta, tonsil, urinary bladder, thyroid came from normal area of removed samples during operation. cDNA library of Prostate, thymus, salivary gland, penis, carotiol artery, adrenal gland, occipital lobe of brain, temporal lobe of brain, frontal lobe of brain, parietal lobe of brain, mid brain, choroid plexus are purchased from OriGene biotechnique company.RESULTS:①AQP 7 mRNA was found in testis, muscle, gall bladder, carotiol artery, lymph node and adrenal gland, and maximum expression of AQP 7 was in testis.②AQP 8 mRNA was found in pancreas, testis, skin and colon. and maximum expression of AQP 8 was in pancreas.CONCLUSION:Coexistence of AQP 7 and 8 in testis was confirmed, which suggested that both of these two aquaporins were involved in the regulation of testis function.

  • 作者:

    AIM: Aquaporins(AQP) are very important for the water transport across cell membrane. Aquaporin 7(AQP 7) and aquaporin 8(AQP8) expressed in the rat testis, but the biophysical functions of these two aquporins in testis and the regulatory mechanism of their expression remain unclear. The aim of this study was to find out if the expression of these two aquporins was correlative with the function of testis, and if panaxadiol saponins (PDS) affected their expression. METHODS: 4 weeks, 8 weeks and 12 weeks old rats were divided into saline and PDS injection groups. Semi-quantified RT-PCR method was employed to detect aquaporin 7 and 8 gene expression: using total RNA extracted from rat testis as PCR template, then using optical scanner to measure the OD value of bands on agrose electrophoresis. OD value of target gene products was divided by which of contol gene. The ratio was identified as the quantity of target gene expression. Western blot was also employed to detect expression of these two proteins in the testis. RESULTS: ①OD value of AQP 7 mRNA products in testis of 4 weeks, 8 weeks, 12 weeks rats were 48 227, 51 536, 59 567 respectively and the ratio divided by OD value of control gene was 0.82, 0.85, 0.99; OD value of AQP 8 mRNA products in testis of 4 weeks, 8 weeks, 12 weeks rats were 23 092, 39 302, 43 316 respectively, the ratio divided by OD value of control gene was 0.39, 0.65, 0.72. Thus, AQP 7 and 8 mRNA expression increased with age. ②After PDS injection for 2 weeks. AQP 7 and 8 mRNA expression in 4 weeks old rats increased to 0.97 and 0. 72,which in control group were 0. 82 and 0. 39; the ratio decreased to 0.77 and 0.55 in 8 weeks old rats, which in control group were 0.85 and 0.65. There was no PCR product of neither aquaporins in 12 weeks old PDS injected rats, except products of control gene. ③ Western blot of AQP 7 and 8 protein showed little difference between PDS and saline injected 12 weeks old rats. CONCLUSION: ①Quantity of AQP 7 and AQP 8 expression was related to testis function of rats. ②PDS influenced the expression of AQP 7 and AQP 8 mRNA, perhaps by promoting the secretion of LH in pituitary.

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