香青藤的生药鉴定

利用药材性状、显微特征、紫外吸收光谱和薄层层析等鉴别方法对香青藤进行生药鉴定研究 ,为该药材的鉴别和开发利用提供科学依据     

核磁共振氢谱法鉴别黄连的研究

用 FT- NMR波谱仪测定了 6个不同产地黄连特征总提物的 1 HNMR图谱 ,并对特征信号进行了归属。从特征总提物中分得并鉴定了小檗碱和棕榈碱。分析结果指出 ,每种黄连的 1 HNMR图谱都显示出原小檗碱型生物碱的特征共振峰。黄连伪品无此信号     

Value of ambulatory electrocardiographic monitoring to identify increased risk of sudden death in patients with left ventricular dysfunction and heart failure

To examine the predictive value of ventricular arrhythmias onambulatory electrocardiographic (ECG) monitoring, 211 patientswith left ventricular dysfunction and congestive heart failure(76% men, age 63±4 years, left ventricular ejection fraction0.26 ± 0.10) were studied. During a follow-up of 21 ±11 months, there were 45 cardiac deaths: 22 were due to progressivepump failure and 23 were sudden. Patients with a low left ventricularejection fraction ( 0.27) and ventricular tachycardia on 24h ECG were at higher risk of dying suddenly and from progressivepump failure (both P<0.0001). Patients who died suddenlywere found to have significantly longer (P=0.003) and faster(P=0.029) ventricular tachycardias on their baseline ambulatoryECG, than survivors. This association was not observed in patientswho died of progressive pump failure. Therefore, low left ventricularejection fraction and ventricular tachycardia on 24 h ECG recordingpredict an increased risk of cardiac mortality. Our resultsalso suggest that longer and faster ventricular tachycardiarecorded by 24 h ECG may identify patients at risk of suddendeath, a finding which has not been described before.     

顾乃强乳腺增生病电脑诊疗专家系统的医理设计——附130例临床验证

此专家系统在修善顾博士行医经验和治疗原则的基础上 ,利用多媒体技术 ,结合声频、视频、图片和文本以治疗乳腺增生病。在医疗设计中 ,着重于顾博士的类型识别要点和乳腺增生病的自然规律。尤其 ,此医疗设计阐明了顾博士所总结的有价值的治疗经验 ,以突出此专家系统的科学性、实用性和可操作性。笔者曾将此专家系统应用于临床 1 30份病例的治疗中。其结果表明此专家系统的临床治疗正确率与顾博士临床治疗相对照达 98%。     

Perinatal mortality trends in a referral hospital

A comparative study of perinatal mortality patterns over a period was conducted at a teaching hospital of South India. Among the 6,048 babies born from January 1984 to December 1985 (Group A), there were 265 (43.8/1000) still births and 127 (22.0/1000) early neonatal deaths. Three hundred and thirty seven (41/1000) babies were still born and 235 (29.8/1000) early neonatal deaths out of 8,215 deliveries during 1992–93 (Group B). The perinatal mortality rate (PMR) in Group A and B were 57.9/1000 and 57.7/1000 respectively. Unbooked cases accounted for the majority (> 75%) of perinatal deaths during both the periods. The overall mortality rates in unbooked cases were three to four times higher than booked cases. Among the various causes of still births, antepartum haemorrhage and uterine rupture had increased. Septicaemia was the major cause of early neonatal deaths in Group A, but in Group B birth asphyxia and prematurity were the leading causes. Effective interventions like creating awareness among the target population to utilise maternal and child health services and early referral of high risk cases with improved intranatal and perinatal care can decrease the perinatal mortality.     

γ-Glutamyltransferase test as a new tool for identification of seminal stains

Summary A simple qualitative method for identification of seminal stains based on a high activity of -glutamyltransferase (-GTP) in human semen is described. It employs the release of -naphthylamine from N--glutamyl--naphthylamide by the -GTP action; -naphthylamine couples with Fast Garnet GBC salt to produce a strong brownish-red color. The data on its simplicity, specificity, and stability show that the present method is suitable for medicolegal examination of seminal stains as a preliminary test.     

机械传动系统的模糊分析设计

用线性隶属函数、二元相对比较级等确定特征因素的隶属度,构造了不同机械传动类型的模糊子集,取其与待识别模糊子集向量空问的距离均数为贴近度。根据择近原则选择确定机械传动类型。     

一种新的蛇胆掺假品的鉴别

目的 对新发现的一种蛇胆掺假品进行鉴别。方法 采用中国药典收载的TLC法。结果 检出了一种新的蛇胆掺假品——熟地黄提取液。结论 本法可运用于药材鉴别，但不适用于含蛇胆的中成药鉴别。     

藏药花锚中新化学成分的鉴定

目的 分离并鉴定高原植物椭圆叶花锚Halenia elliptica全草中的化学成分。方法 采用元素分析（EA），核磁共振波谱（NMR），质谱（MS），红外光谱（IR），紫外光谱（UV），差示扫描量热（DSC）等分析方法，测定其理化常数和波谱数据，鉴定其化学结构，结果 确证从椭圆叶花锚中所得到的两种针状结晶化合物，分别为1-羟基-3，7，8-三甲氧基Shan酮（1-hydroxy-3,7,8-trimethoxyxanthone)和1，7-二羟基-3，8-二甲氧基Shan酮（1，7-dihydroxy-3,8-dimethoxyxanthone)。结论 上述两种Shan酮衍生物为首次从藏药花锚中分离得到。