Replace种植义齿非埋植式手术的临床效果评价

目的评价Replace种植系统采用开放愈合的临床种植及修复效果。方法选择36例100颗行Replace种植体植入体后，同时安放愈合基台，采用开放愈合。上颌4～6个月，下颌3～4个月后行贵金属烤瓷冠或桥修复。并就其种植体成功率、修复体成功率、植体周牙龈状况进行为期3年的随访观察。结果种植体成功率100％，修复体成功率100％，植体周牙龈状况优良。结论Replace系统采用非埋植式手术进行种植及修复具有满意的临床效果。     

番茄红素对大鼠细胞DNA氧化损伤修复的影响

目的　研究番茄红素对大鼠淋巴细胞和肝细胞DNA损伤的保护作用。方法　大鼠灌胃番茄红素 4周后 ,采用单细胞凝胶电泳技术对外周血淋巴细胞和肝细胞DNA损伤进行分析。结果　番茄红素组大鼠淋巴细胞和肝细胞DNA的迁移率和尾长显著低于对照组。结论　番茄红素对淋巴细胞和肝细胞DNA损伤具有一定的保护作用。     

乙型流行性感冒病毒的基因快速检测

〔目的〕建立乙型流行性感冒病毒的核酸快速诊断技术。〔方法〕采用RT -PCR方法对乙型流感病毒的HA基因进行检测 ,我们对乙型流感病毒的HA基因保守区域设计相关引物 ,进行扩增 ,并作了特异性与灵敏度比较。〔结果〕该引物只能扩增乙型流感病毒的特异性片段 ,而对其它型别的流感病毒以及麻疹、风疹、腮腺炎病毒无交叉反应。检测的灵敏度一次PCR可达 1TCID50 ,二次PCR反应可达 0 .1TCID50 。〔结论〕采用该方法从临床患者含漱液标本中的检出率 ,比采用MDCK细胞分离的阳性率更高 ,可达到迅速、正确地诊断乙型流感的实用目的。     

病案管理如何应对医、教、研发展

本文着重讨论了病案管理如何促进医疗、教学、科研的发展。病案管理人员在为医、教、研服务的过程中,要不断更新自己的知识水平,提高自身素质。运用高新技术,采用科学的病案管理模式。变被动为主动,及时、有效、准确地为医、教、研提供最有价值的资料、数据。同时实现自身价值和病案价值。     

食用合成色素的检测方法

我国批准使用的食用合成色素有21种,其中最常用的有胭脂红、苋菜红、柠檬黄、日落黄和亮蓝等,食用合成色素多为含有R-N=N-R'键、苯环或氧杂蒽结构化合物,它们对人体存在一定的不安全性或者产生有害作用[1]。因此,使用范围限于饮料及配制酒、糖果、糕点和青梅等,禁止用于肉类、鱼类、水果及其制品(红肠肠衣除外)等[2]。然而,市场上滥用食用合成色素的违法行为有扩展趋势,如在市售花生米、葡萄酒、肉禽制品上均可检出食用合成色素[3-5]。造成滥用食用合成色素的原因,一方面是利益驱使,另一方面是检测方法不够简便、快速,使基层单位未能很好…     

肛疾舒洗剂质量标准研究

目的:研究肛疾舒洗剂的质量标准,以控制该制剂质量.方法:采用TLC法分别对大黄、黄柏、徐长卿、樟脑等进行定性鉴定,用分光光度法测定该制剂中有效成分总蒽醌的含量.结果:TLC鉴别专属性强,含量测定以大黄素为对照品,浓度在2.51～12.57μg·ml-1的范围内,线性关系良好,r=0.999 9;平均回收率为96.94%(n=5),RSD为0.86%.结论:本质量标准可有效控制该制剂的质量且方法简单,准确,实用.     

丝裂霉素C预防浅表性膀胱癌等离子电切术后复发

目的探讨丝裂霉素C(MMC)预防浅表性膀胱癌等离子电切术(PKRBT)后复发的有效性。方法73例浅表性膀胱癌病人行PKBRT后即MMC 40 mg膀胱内灌注,常规MMC膀胱灌注12月。结果术后6月复发3例(4.1%),12月复发11例(15.1%),20月复发15例(20.5%)。结论MMC膀胱内灌注在PKRBT术后预防复发疗效良好。     

Differential enantioselectivity and product-dependent activation and inhibition in metabolism of verapamil by human CYP3As.

In vitro studies of enantioselective metabolism of R-(+)- and S-(-)verapamil (VER) were conducted using human cDNA-expressed CYP3A isoforms, CYP3A4, CYP3A5, and CYP3A7. N-dealkylated products nor-VER [2,8-bis-(3,4-dimethoxyphenyl)-2-isopropyl-6-azaoctanitrile] and D617 [2-(3,4-dimethoxyphenyl)-5-methylamino-2-isopropylvaleronitrile] were the major metabolites for all CYP3A isoforms regardless of enantiomer. Enantioselectivity of CYP3A4 and CYP3A7 was most similar among the three isoforms. This coincides with the degree of homology of amino acids at the active sites and in the total amino acid sequences of the enzymes. Biphasic substrate inhibition was observed for the formation of nor-VER and D617, whereas simple biphasic kinetics were observed for the formation of O-demethylated products for both enantiomers with CYP3A4. The biphasic substrate inhibition was observed only for nor-VER, and simple biphasic kinetics were observed for D617 and O-demethylated products for both enantiomers with CYP3A5. However, with CYP3A7, D617 and O-demethylated products showed typical Michaelis-Menten kinetics, and only nor-VER displayed substrate (monophasic) inhibition. When metabolic rates of VER were determined in the presence of three different effectors, midazolam, testosterone, and nifedipine, activation, inhibition, or activation and inhibition of VER metabolism was observed depending on the enantiomers, metabolites, effectors, and cytochrome P450 isoforms. Addition of anti-CYP3A4 antibody inhibited formation of all metabolites for both CYP3A4 and CYP3A5. The atypical phenomena (biphasic substrate inhibition, activation, and inhibition depending on product formation) of VER kinetics could be adequately explained by introducing the concept of steric interaction into a two binding-site model.     

通腑醒神液直肠滴注对急性脑出血意识状态的影响

目的观察通腑醒神液直肠滴注对急性脑出血神昏患者的治疗作用.方法将61例患者随机分为两组,均予西医常规处理,治疗组另予通腑醒神液直肠滴注,对照组予通腑醒神胶囊口服或鼻饲.结果两组临床疗效相近,但治疗组在促醒及减轻昏迷程度方面优于对照组.结论通腑醒神液直肠滴注是治疗急性脑出血神昏的有效方法.     

Consumption and Sources of Dietary Salt in Family Members in Beijing

In China, few people are aware of the amount and source of their salt intake. We conducted a survey to investigate the consumption and sources of dietary salt using the “one-week salt estimation method” by weighing cooking salt and major salt-containing food, and estimating salt intake during dining out based on established evidence. Nine hundred and three families (1981 adults and 971 children) with students in eight primary or junior high schools in urban and suburban Beijing were recruited. On average, the daily dietary salt intake of family members in Beijing was 11.0 (standard deviation: 6.2) g for children and adolescents (under 18 years old), 15.2 (9.1) g for adults (18 to 59 years old), and 10.2 (4.8) g for senior citizens (60 years old and over), respectively. Overall, 60.5% of dietary salt was consumed at home, and 39.5% consumed outside the home. Approximately 90% of the salt intake came from cooking (household cooking and cafeteria or restaurant cooking), while less than 10% came from processed food. In conclusion, the dietary salt intake in Beijing families far surpassed the recommended amounts by World Health Organization, with both household cooking and dining-out as main sources of salt consumption. More targeted interventions, especially education about major sources of salt and corresponding methods for salt reduction should be taken to reduce the risks associated with a high salt diet.