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葛根素的心血管系统药理作用及机理研究 总被引:27,自引:1,他引:27
纵观近年来对葛根素在心血管系统药理作用及机理研究方面的进展发现,葛根素对心血管系统具有抗心律失常、降血压、扩张冠状动脉、抗心肌缺血、抗过氧化、抗缺血-再灌注损伤、影响血液动力学和血小板聚集、保护血管等作用。其临床应用前景良好,其药效机制研究及临床应用有待更深一步的探究。 相似文献
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Atac IA Peksel A Yanardag R Sokmen BB Doger MM Bilen ZG 《Drug and chemical toxicology》2006,29(4):363-377
We investigated the effects of a combined treatment with chromium (Cr) and niacin on the spleen, tongue, and lens tissues in terms of lipid peroxidation (LPO), glutathione (GSH), serum catalase (CAT), lactate dehydrogenase (LDH), serum cholesterol, and total lipid levels in normal and hyperlipemic rats. In this study, female 1-year-old Swiss albino rats were used. The rats were randomly divided into four groups. Group I rats (control) were fed with standard pellet chow. Group II rats were fed a lipogenic diet in which 2% cholesterol, 0.5% cholic acid, and 20% sunflower oil were added and were given 3% alcoholic water for 60 days. Group III rats were fed with the same lipogenic diet and were treated with a dose of 250 microg/kg body weight CrCI3 x 6H2O and 100 mg/kg body weight niacin, for 45 days, by gavage. The rats in group IV were fed with pellet chow and treated with 250 microg/kg body weight CrCI3 x 6H2O and 100 mg/kg body weight niacin, by gavage, for 45 days. After 2 weeks, the animals showed symptoms of hyperlipemia. On the 60th day, tissue and blood samples were taken. We have observed decreased CAT activity and GSH levels, increased LDH activity, cholesterol, total lipid, and LPO levels in hyperlipemic rats. Niacin and Cr administration to hyperlipemic rats increased tissue GSH levels and CAT activity and decreased tissue LPO levels and LDH activity, cholesterol, and total lipid levels compared with hyperlipemic rats. We conclude that the administration of a combination of niacin and chromium has a protective effect against oxidative damage to tongue, lens, and spleen tissues as a result of hyperlipemia. 相似文献
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Gokhan Sarg?n Irfan Yavasoglu Firuzan Kacar Doger Gurhan Kadikoylu Zahit Bolaman 《Medical oncology (Northwood, London, England)》2012,29(5):3335-3338
Hematological malignancies with renal cell carcinoma (RCC) are rarely seen. We reported here two cases of coincidence of RCC with multiple myeloma (MM) and Hodgkin??s disease (HD). A 69-year-old male patient with tumor that was located at the upper pole of left kidney was admitted to our clinic. Partial tumoral resection was perfomed and stage-I RCC was diagnosed after the histopathological examination of tumor. Moreover, he was diagnosed with IgG kappa stage-IIA MM as a result of bone marrow examination and serum immunofixation electrophoresis. Radiotherapy, combination chemotherapy, and autologous stem cell transplantation (ASCT) were performed. The patient is still alive who achieve a complete remission. A 53-year-old male patient suffered from cervival lymphadenopathy. He has a story of right radical nefrectomy that has been performed 4?years ago. Stage II-B lymphocyte-predominant HD was diagnosed. Combination chemotherapy was started, but relapse occurred 25?months later. ASCT was not planned due to cardiovascular problems and the patient died. Clinicans should keep in mind the coincidence of RCC with MM and HD. 相似文献
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Successful treatment of oesophageal candidiasis by micafungin: a novel systemic antifungal agent 总被引:5,自引:0,他引:5
Pettengell K Mynhardt J Kluyts T Lau W Facklam D Buell D;FK South African Study Group 《Alimentary pharmacology & therapeutics》2004,20(4):475-481
AIM: To determine the minimum effective dose and safety of micafungin in the treatment of HIV-related oesophageal candidiasis. METHOD: A total of 120 patients were enrolled in this open label study of the effects of daily 1 h infusions of micafungin on endoscopically proven fungal oesophagitis. Patients were randomly assigned to receive 12.5, 25, 50, 75 and 100 mg of micafungin daily. Response was evaluated clinically and endoscopically. RESULTS: The protocol defined minimum effective dose of micafungin was 12.5 mg. The percentage of patients experiencing clearing of physical signs and symptoms showed a dose-response relationship and reached 94.7% in the 100 mg dose group. All patients in the 50, 75 and 100 mg dose groups achieved an endoscopically verified improvement in oesophagitis. Adverse effects of micafungin were generally mild and not dose-related. No serious renal, hepatic or drug-related infusion reactions were encountered. CONCLUSION: Micafungin was found to be effective, well-tolerated and safe. The minimum effective dose was found to be 12.5 mg and a significant linear trend in the successful treatment of oesophageal candidiasis was observed across the doses used with 75 and 100 mg dose levels achieving high rates of clinical and endoscopic cure. 相似文献
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E Doger R Urbá-Holmgren J R Eguibar B Holmgren 《Pharmacology, biochemistry, and behavior》1989,34(2):237-240
The hypothetical modulation by GABAergic neurons of yawning behavior in the rat was explored with GABA-active drugs. Gamma-acetylenic-GABA, a specific inhibitor of GABA-T, increases yawning frequency when injected at a dose of 7 mg/kg. Baclofen, a GABAB agonist (3 mg/kg), inhibits yawning completely; GABA antagonists, bicuculline and picrotoxin, at subconvulsant doses, also decrease yawning. All drugs were injected intraperitoneally with the exception of apomorphine, which was injected subcutaneously. It is suggested that GABAB receptors play a role in yawning behavior by modulating ACh release, and that GABAA receptors may modify yawning frequency by modulating inhibitory influences on ACh neurons. 相似文献
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YL Cheng CC Shek FK Wong KS Choi KF Chau TS Ing CS Li 《American journal of kidney diseases》1998,31(6):986-990
In 22 hemodialysis patients, during a dialysis session, the solute removal index (SRI) for urea obtained from the use of a partial spent dialysate collection method was compared with that derived from the use of a total spent dialysate collection technique. The partial spent dialysate collection method was used to harvest a small representative sample of the total spent dialysate. The volumes of spent dialysate collected by the partial and the total spent dialysate collection methods were 1.7 +/- 0.4 L and 129.6 +/- 15.3 L, respectively. The total amount of urea nitrogen removed by dialysis as estimated by the partial spent dialysate collection method was similar to that determined by the total spent dialysate collection approach. As a result, the SRI value for urea obtained by the partial spent dialysate collection method (namely, 63% +/- 8%) correlated very well (r = 0.95, P < 0.001) with that derived by the total spent dialysate collection technique (namely, 62% +/- 8%). Our data suggest that it is feasible to use a simple partial spent dialysate collection method to obtain SRI results in patients treated with hemodialysis. 相似文献