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ÖZGE GÜNDÜZ M.D. SIBEL ERSOY‐EVANS M.D. AYŞEN KARADUMAN M.D. 《Pediatric dermatology》2009,26(6):750-751
Abstract: Pityriasis rosea (PR) is an acute, self‐limiting papulosquamous disorder of unknown etiology. Published studies of childhood PR are scarce and most are reviews. The aim of this study was to determine the demographic and clinical features of childhood PR. 相似文献
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6-(αα-二苯基乙酰哌嗪基苯基)-4,5-二氢-5-甲基-3(2H)-哒嗪酮对兔血小板聚集及TXB2,cAMP的影响 总被引:4,自引:0,他引:4
6-(αα-二苯基乙酰哌嗪基苯基)-4,5-二氢-5-甲基-3(2H)-哒嗪酮(简称DMDP)是我院新合成的哒嗪酮的衍生物。DMDP可以显著抑制由花生四烯酸(AA(?),ADP和血小板活化因子(PAF)诱导的免血小板聚集,其IC50分别为1.12±0.1.4.19±0.5和2.97±0.1μmol/L。实验还表明DMDP在1~500 μmol/L浓度范围内呈剂量依赖性地抑制兔血小板内血栓素B2含量,但升高兔血小板内环腺苷酸水平,这可能是其抑制血小板聚集的作用机理之一。 相似文献
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A Abdullahi RU Hamzah AA Jigam A Yahya AY Kabiru H Muhammad S Sakpe FS Adefolalu MC Isah MZ Kolo 《急性病杂志》2012,1(2):126-129
ObjectiveTo study the inhibitory effect of various extracts from Crateva adansonii (C. adansonii) used traditionally against several inflammatory diseases such as rheumatism, arthritis, and gout, was investigated on purified bovine milk xanthine oxidase (XO) activity.MethodsXanthine oxidase inhibitory activity was assayed spectrophotometrically and the degree of enzyme inhibition was determined by measuring the increase in absorbance at 295 nm associated with uric acid formation. Enzyme kinetics was carried out using Lineweaver-Burk plots using xanthine as the substrate.ResultsAmong the fractions tested, the chloroform fraction exhibited highest potency (IC50 20.2±1.6 μg/mL) followed by the petroleum ether (IC50 30.1±2.2 μg/mL), ethyl acetate (IC50 43.9±1.4 μg/mL) and residual (IC50 98.0±3.3 μg/mL) fractions. The IC50 value of allopurinol used, as the standard was 5.7±0.3 μg/mL.ConclusionsEnzyme inhibition mechanism indicated that the mode of inhibition was of a mixed type. Our findings suggest that the therapeutic use of these plants may be due to the observed Xanthine oxidase inhibition, thereby supporting their use in traditional folk medicine against inflammatory-related diseases, in particular, gout. 相似文献
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The effect of hair loss on quality of life 总被引:4,自引:0,他引:4
D Williamson † M Gonzalez ‡ AY Finlay‡ 《Journal of the European Academy of Dermatology and Venereology》2001,15(2):137-139
BACKGROUND: The aim of this study was to quantify the effect of hair loss on quality of life. Patients were recruited from an alopecia support group, and were assessed using the Dermatology Life Quality Index (DLQI) and an adapted version of the DLQI. Financial utility questions, an abbreviated version of the Center for Epidemiologic Studies Depression Scale and open-ended questions were also used. OBSERVATIONS: Seventy (90% response rate) questionnaires were returned. DLQI scores in responders with hair loss (mean score = 8.3, SD = 5.6, range 0-23, n = 70) were similar to those recorded in severe psoriasis. The hair loss continued to have a significant impact on life quality well after the initial event (median duration of hair loss = 138 months +/- 114; range 7-588, n = 70). Forty per cent of patients also felt dissatisfied with the way in which their doctor dealt with them. CONCLUSIONS: This study specifically identifies the feelings of loss of self-confidence, low self-esteem and heightened self-consciousness in people affected by hair loss. 相似文献