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刺果甘草化学成分的研究 总被引:5,自引:0,他引:5
从刺果甘草(Glycyrrhiza pallidiflora Maxim)的根和根茎中分离到五种化合物,经理化性质和光谱方法鉴定,化合物P-2为4-羟基-2,4’-二甲氧基查尔酮,为一新的化合物,命名为刺果甘草查尔酮(glypallichalcone,P-2)。其它分别为4'-O-methyl-coumestrol(P-1),谷氨酸乙酰化物(N-acetylglutamicacid,P-3)和芒柄花素(formononetin,P-4),均为首次从该植物中获得。此外还得到β-谷甾醇(β-sitos-terol,P-5) 相似文献
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Bupivacaine,a long-acting local anesthetic,in anorectal surgery 总被引:2,自引:2,他引:0
Lawrence D. Ramalho M.D. Dr. Eugene P. Salvati M.D. Robert J. Rubin M.D. 《Diseases of the colon and rectum》1976,19(2):144-147
Summary The long-acting local anesthetic, bupivacaine, was used in a series of 467 anorectal patients, both inpatients and outpatients.
Bupivacaine was found to be safe and effective. Like other local anesthetics, it has none of the operative and postoperative
complications frequently associated with general or spinal anesthetics. Its longer duration of action makes it extremely useful
in anorectal operations on hospitalized and non-hospitalized patients. The potential hypertensive effects of using epinephrine
in the local anesthetic solution appear to be negated by the calming, hypotensive effects of the intravenously administered
sedatives in hospitalized patients.
Read at the meeting of the American Society of Colon and Rectal Surgeons, San Francisco, California, May 4 to 8, 1975. 相似文献
96.
阿魏酸钠对花生四烯酸代谢的影响 总被引:10,自引:0,他引:10
利用放射薄层方法测定兔血小板花生四烯酸代谢产物TXB2,PGE2和PGF2α。用放射免疫法测定兔血小板TXB2及主动脉6-keto-PGF1α。阿魏酸钠(SF,0.1~3.2 mmol/L),抑制14C-花生四烯酸转化为TXB2,呈剂量效应关系,IC50为0.762 mmol/L。SF在较高浓度(0.8~3.2mmol/L)时亦抑制PGE2,PGF2α的生成。用放免法观察到,SF对血小板TXB2和动脉壁6-keto-PGF1α的生成均有抑制作用,对TXB2的作用较强。结果提示,SF可抑制兔血小板和动脉壁环氧酶活性。 相似文献
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H Flores R A Ramalho A R Ribeiro 《International journal for vitamin and nutrition research. Internationale Zeitschrift für Vitamin- und Ern?hrungsforschung. Journal international de vitaminologie et de nutrition》1988,58(3):276-280
Liver vitamin A was determined in 10 different regions of the liver from 13 rats and 17 human individuals deceased of various causes. Linear regression analysis and comparison of the values obtained from the different anatomical regions showed that, despite a high degree of heterogeneity in distribution and lack of a consistent pattern, samples from any of the sites analyzed ensure representativeness of the whole liver concentration, taken as the average of the values from the 10 samples of each liver. This means that properly trained personnel, but not necessarily specialized, could draw the liver samples, thus significantly reducing the cost of surveys of vitamin A status based on liver reserves of the vitamin determined at autopsy. 相似文献
99.
Gallbladder nonvisualization in cholescintigraphy has been shown to be a reliable finding in acute cholecystitis. In some cholescintigrams, we have observed faintly increased pericholecystic hepatic activity in conjunction with gallbladder nonvisualization. To determine the frequency and significance of the pericholecystic hepatic activity finding, we evaluated 334 consecutive adult patients who had cholescintigrams with technetium-99m diisopropylphenylcarboamoyl iminodiacetic acid. Pericholecystic hepatic activity was seen in 21% of the abnormal scans demonstrating gallbladder nonvisualization but in none of the other scans. Thirteen of these patients underwent surgery; 11 (85%) were found to have acute cholecystitis, and two (15%) had chronic cholecystitis. Four patients (31%) had acute gangrenous cholecystitis, and five (39%) had cholecystitis complicated by gallbladder perforation. The pericholecystic hepatic activity sign is not specific for gangrenous cholecystitis or gallbladder perforation but does reliably indicate inflammatory gallbladder disease and is associated with a relatively high incidence of cholecystitis complicated by perforation. 相似文献
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