青叶胆Shan酮类化合物的成分研究

目的　分离鉴定青叶胆 Swertia mileensis全草的酮类成分。方法　 95 %乙醇浸提 ,经硅胶柱色谱分离纯化 ,UV,IR,MS,1 H和 1 3CNMR波谱方法确定化学结构。结果　分得 12个酮成分 ,分别为 1-羟基 - 2 ,3,4 ,5 -四甲氧基酮 (1- hydroxy- 2 ,3,4 ,5 - tetramethoxyxanthone, ) ;1-羟基 - 2 ,3,7-三甲氧基酮 (1- hydroxy- 2 ,3,7-trim ethoxyxanthone, ) ;1-羟基 - 2 ,3,5 ,7-四甲氧基酮 (1- hydroxy- 2 ,3,5 ,7- tetram ethoxyxanthone, ) ;1,5 -二羟基 - 2 ,3-二甲氧基酮 (1,5 - dihydroxy- 2 ,3- dimethoxyxanthone, ) ;1,5 -二羟基 - 2 ,3,7-三甲氧基酮 (1,5 - dihy-droxy- 2 ,3,7- trimethoxyxanthone, ) ;1-羟基 - 2 ,3,5 -三甲氧基酮 (1- hydroxy- 2 ,3,5 - trimethoxyxanthone, ) ;1,5 -二羟基 - 2 ,3,4 ,7-四甲氧基酮 (1,5 - dihydroxy- 2 ,3,4 ,7- tetramethoxyxanthone, ) ;1,8-二羟基 - 2 ,3,6 -三甲氧基酮 (1,8- dihydroxy- 2 ,3,6 - trimethoxyxanthone, ) ;1-羟基 - 2 ,3,4 ,7-四甲氧基酮 (1- hydroxy- 2 ,3,4 ,7- te-tramethoxyxanthone, ) ;1,2 ,3,5 -四甲氧基酮 (1,2 ,3,5 - tetromethoxyxanthone, ) ;1-羟基 - 2 ,3,4 ,6 -四甲氧基酮 (1- hydroxyl- 2 ,3,4 ,6     

Characterization of hepatitis B virus (Dane particle)

Hepatitis B virions (Dane particles) were purified from the sera of chronic HBsAg carriers by consecutive rate-zonal and isopycnic centrifugations in sucrose gradients using HBsAg, HBcAg and endogenous DNA polymerase activities as specific markers. Purified Dane particles, radiolabelled with Na ¹²⁵I by the chloramine-T procedure, had a higher buoyant density in CsCl (1.28 g/cm³) than unlabelled particles (1.26 g/cm³) and an estimated sedimentation coefficient of 280 s. ¹²⁵I-Dane particles were fully precipitated by anti-HBs and not by anti-HBc sera. Heavy and light density core particles were purified from heavy and light density populations of Dane particles and radioiodinated. The iodinated polypeptides of Dane particles and HBcAg were compared with those of the iodinated 22-nm form of HBsAg by SDS-PAGE. Iodinated Dane particles contained seven polypeptides with molecular weights of 18,000, 23,000, 26,000, 34,000, 43,000, 48,000 and 115,000. Heavy and light core particles contained three polypeptides with molecular weights of 18,000, 25,000 and 37,000.     

青叶胆酮类化合物的成分研究

目的　分离鉴定青叶胆 Swertia mileensis全草的酮类成分。方法　 95 %乙醇浸提 ,经硅胶柱色谱分离纯化 ,UV,IR,MS,1 H和 1 3CNMR波谱方法确定化学结构。结果　分得 12个酮成分 ,分别为 1-羟基 - 2 ,3,4 ,5 -四甲氧基酮 (1- hydroxy- 2 ,3,4 ,5 - tetramethoxyxanthone, ) ;1-羟基 - 2 ,3,7-三甲氧基酮 (1- hydroxy- 2 ,3,7-trim ethoxyxanthone, ) ;1-羟基 - 2 ,3,5 ,7-四甲氧基酮 (1- hydroxy- 2 ,3,5 ,7- tetram ethoxyxanthone, ) ;1,5 -二羟基 - 2 ,3-二甲氧基酮 (1,5 - dihydroxy- 2 ,3- dimethoxyxanthone, ) ;1,5 -二羟基 - 2 ,3,7-三甲氧基酮 (1,5 - dihy-droxy- 2 ,3,7- trimethoxyxanthone, ) ;1-羟基 - 2 ,3,5 -三甲氧基酮 (1- hydroxy- 2 ,3,5 - trimethoxyxanthone, ) ;1,5 -二羟基 - 2 ,3,4 ,7-四甲氧基酮 (1,5 - dihydroxy- 2 ,3,4 ,7- tetramethoxyxanthone, ) ;1,8-二羟基 - 2 ,3,6 -三甲氧基酮 (1,8- dihydroxy- 2 ,3,6 - trimethoxyxanthone, ) ;1-羟基 - 2 ,3,4 ,7-四甲氧基酮 (1- hydroxy- 2 ,3,4 ,7- te-tramethoxyxanthone, ) ;1,2 ,3,5 -四甲氧基酮 (1,2 ,3,5 - tetromethoxyxanthone, ) ;1-羟基 - 2 ,3,4 ,6 -四甲氧基酮 (1- hydroxyl- 2 ,3,4 ,6     

分光光度法测定青叶胆内獐芽菜苦甙含量

用分光光度法测定青叶胆内獐芽菜苦甙含量。方法简单,快速,准确,测得平均含量为０．６９５６％（ｎ＝４,ＲＳＤ－１．３２％）。     

细梗紫菊中的化学成分

目的 对细梗紫菊Notoseris gracilipes全草的化学成分进行分离纯化、结构鉴定和抗菌活性测试。方法 以甲醇室温提取,采用各种色谱技术进行分离纯化。根据NMR等波谱数据鉴定结构。按常规方法进行抗菌活性的定性测定。结果 从细梗紫菊全草的甲醇提取物中分离鉴定出12个化合物,其中8个为倍半萜内酯：jacquilenin(Ⅰ）,scorzoside(Ⅱ）,ixerisosideD(Ⅲ）,austricin(Ⅳ）,notoserolideA(Ⅴ）,crepidiasideB(Ⅶ）和lactusideB(Ⅷ）。另外4个化合物分别鉴定为6,7-二羟基香豆素（Ⅸ）,野莴苣苷（Ⅹ）,木犀草素-7-葡萄糖苷（Ⅺ）和胡萝卜苷（Ⅻ)。倍半萜内酯的抗菌实验表明化合物Ⅰ和Ⅱ对蜡状芽孢杆菌（Bacillu cereus AS.1.1688)的生长有抑制作用。结论 这些化合物均为首次从该植物中分离得到。     

Validity of Cyriax’s Functional Examination for Diagnosing Shoulder Pain: A Diagnostic Accuracy Study

ObjectiveThe purpose of this study was to compare the diagnostic accuracy of lesion localization between Cyriax’s functional examination and ultrasonography in participants with and without shoulder pain.MethodsA total of 206 adults aged 20 years and older with or without shoulder pain were included. All participants received Cyriax’s functional examination by the first blinded physiatrist. Within a week, ultrasonography was performed by another blinded specialist. The diagnoses made by both methods, respectively, were compared finally. Sensitivity, specificity, and positive and negative predictive values were evaluated for the diagnosis of shoulder lesions between Cyriax’s functional examination and ultrasonography.ResultsThere was no significant difference between the 2 groups regarding age, sex, and body mass index. Moderate to high sensitivity (74.1%, 76.5%, and 66.7%) and high specificity (93.0%, 99.5%, and 99.0%) were in supraspinatus, subscapularis, and infraspinatus lesions, respectively. For the subacromial-subdeltoid bursitis, high sensitivity (90.4%) and moderate to high specificity (70.3%) was found. In contrast, low sensitivity (15.0%) and high specificity (100.0%) were found in the biceps lesions.ConclusionIn this study, we found that Cyriax’s functional examination had high sensitivity in detecting subacromial-subdeltoid bursitis and high specificity in rotator cuff lesion.     

中药足浴结合辨证施膳对失眠患者的疗效分析

目的：探讨中药足浴结合辨证施膳对失眠症的临床疗效。方法：将84例失眠症患者,按是否愿意接受中药足浴及辨证施膳分为治疗组42例和对照组42例,对照组给予常规护理,治疗组在常规护理的基础上给予中医辨证分型施膳及中药足浴治疗。对两组患者干预前后的睡眠总时间、入睡时间、睡眠疗效进行评估。结果1治疗组睡眠质量明显优于对照组,两组疗效比较差异有显著性意义（P〈0．05）。结论：中药足浴结合辨证施膳能明显改善失眠症患者的睡眠质量,提高临床疗效及患者生活质量。     

南苦苣菜生药学鉴别研究

目的通过对南苦苣菜的生药学研究,为南苦苣菜的开发利用、质量标准的制定及生药学方面的鉴别研究提供依据。方法采用性状鉴别、显微鉴别、理化鉴别的方法进行研究。结果南苦苣菜药材叶具翼柄,展平后呈匙形、长椭圆形,不裂。在显微结构中乳汁管多见于韧皮部;根中可见菊糖。甲醇超声提取,乙酸乙酯萃取,石油醚-丙酮(5∶1)展开,吹干后于日光下检视,可见4个斑点。结论性状、显微、理化特征明显,研究结果可作为南苦苣菜生药质量标准制定的依据。