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抗肿瘤药物研究Ⅰ:去甲斑蝥素氨基酸衍生物的合成与抗癌活性 总被引:1,自引:0,他引:1
In order to search for new compounds with higher anti-cancer activities and lower toxicities, 19 amino acid derivatives of norcantharidin, of which 16 are unknown compounds, were designed and synthesized. Preliminary screening results revealed that 2-(syn-exo-7-oxabicyclo [2. 2. 1] heptane-2, 3-dicarboxylic imido)-N-phenyl glutaramic acid exhibited a fairly apparent inhibitory activity against human-hepatoma cells in vitro (inhibitory rate 39.4% at 0.025 μtmol/ml). 相似文献
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We describe a new pyeloureteral drainage catheter that can be used for both genitourinary tract stenting and drainage, as well as tamponade of bleeding from the renal parenchyma or subcutaneous tissue. Primary indications for the use of this catheter and recommendations on insertion techniques are presented. With the exception of one case of minor kinking of the catheter, we have had no complications or failures with this catheter. While insertion through an unprotected tissue track is somewhat difficult, we have had good success introducing the catheter through a 24-F or larger Teflon working sheath. The catheter has excellent patient retention properties. It can be converted from external to internal drainage or vice versa simply and quickly on the ward. 相似文献
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1 OverviewoffemalemalignanciesinEuropeCancerincidenceandmortalityestimatesfor 1995werereportedrecentlyfor 38countriesinEurope[1] .Therewereestimated 2 .6millionnewcasesofcancerinEuropein 1995 ,representingoverone quarteroftheworldburdenofcancerwhileEurope’sinhabi… 相似文献
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Adam T. Sandlin MD Suneet P. Chauhan MD Everett F. Magann MD 《Journal of ultrasound in medicine》2013,32(5):851-863
Polyhydramnios is an excessive amount of amniotic fluid within the amniotic cavity. The etiology of polyhydramnios may be idiopathic, the consequence of fetal structural anomalies, or the consequence of various fetal and maternal conditions. The clinical importance of polyhydramnios is found in its association with adverse pregnancy outcomes and the risk of perinatal mortality. The antenatal management of polyhydramnios can be challenging as there are no formalized guidelines on the topic. The purpose of this review is to provide a literature‐based overview on the subject of polyhydramnios in singleton pregnancies, demonstrate its clinical implications, and describe a practical approach to its management. 相似文献