中药栀子超临界萃取物的挥发性成分研究

研究了栀子萃取的最佳工艺条件及其挥发油中的化学成分。以L9（3^4）正交设计对超临界萃取条件进行优化，GC-MS联用技术对挥发性成分进行定性及半定量分析。结果显示：55℃，35MPa，120min的萃取条件下挥发性成分的收率最高，超临界萃取产物的主要成分为亚油酸，棕榈酸，反，反-2，4-癸二烯醛，而传统水蒸汽蒸馏工艺下主要成分为反，反-2，4-癸二烯醛。与水蒸汽蒸馏工艺相比较。超临界流体萃取工艺且有革取率高。生产周期短的优点．     

Effect of Gardenia extract ZG on the adsorption quantity of herpes simplex virus type 1 （HSV-1）

To observe the effect of Gardenia extract ZG on the adsorption quantity of herpes simplex virus type 1 (HSV-1) so as to explore the mechanism of its antiviral activity, fluorescein isothiocyanate (FITC) was used as the fluorescent probe to label viruses and heparin sodium was used as control. Meanwhile , the effect of Gardenia extract ZG on the adsorption quantity on the surface of Hep-2 cells was determined by flow cytometry. It was demonstrated that adsorption of HSV-1 on the surface of Hep-2 cells exhibited the character of saturation and specificity and heparin sodium could prevent attachment of viruses on these cells. These results are in accord with those reported previously. It was also proved that the manner of drug-use prior to adsorption or simultaneous use of drug and adsorption was better than adsorption prior to drug-use, and the inhibition rates of the former and latter manner were 84. 76% and 82.92% respectively. Three manners of drug-use with Gardenia extract ZG were all effective to reduce the adsorption quantity of viruses, especially the manner of simultaneous use of drug and adsorption with an adsorption inhibition rate of 68.46% . From the above observation, it is apparent that the mechanism of anti-viral activity of Gardenia extract ZG may be via several steps involved in the HSV-1 adsorption.     

Ellis‐van Creveld syndrome in a patient from Tanzania

We report an African infant with Ellis‐van Creveld (EVC) syndrome. EVC syndrome is a chondral and ectodermal dysplasia with autosomal recessive transmission. The baby presented with polydactyly, short limbs and atrioventricular septal defect, but was withdrawn from clinical follow up for the first year of life. Initial hematological abnormalities could not be explained and normalized later. EVC syndrome was confirmed by genetic analysis that showed two pathogenic mutations in the EVC2 gene, c.653_654del, p.Val218Glyfs*12 in exon 5, and c.2710C>T, p.Gln904* in exon 16. The variant c.653_654del; p.Val218Glyfs*12 in exon 5 has not been described before. Our review of medical literature suggested this is the first molecularly confirmed case of EVC syndrome in sub‐Saharan Africa.     

反相高效液相色谱法测定桅子中京尼平甙和京尼平的含量

应用高效液相色谱法同时测定了栀子中京尼平甙和京尼平的含量。采用YWG -C18柱 ,0 0 5mol/L磷酸氢二钠—甲醇 ( 72∶2 8) ,用磷酸调节pH6 80为流动相 ,于 2 4 0nm波长处检测 ,京尼平甙和京尼平的平均加样回收率分别为 99 10 % ,98 2 8% ,RSD分别为 1 0 5% ,1 2 1% (n=5)。本法简单、准确、重现性好     

京尼平苷对地鼠胆固醇结石形成的影响

目的观察京尼平苷预防给药对地鼠胆固醇结石形成的影响.方法用高脂肪高蛋白致石饲料造成地鼠胆固醇结石模型,阳性对照药物熊去氧胆酸80mg/kg和京尼平苷50,100mg/kgig,每天预防给药,给药30d后作胆囊内容物涂片检查观察地鼠的成石率,检测胆汁脂类成分计算胆汁成石指数.结果模型组的成石率为100%,成石指数(LI)大于1;京尼平苷50和100mg/kg组的成石率分别为40%(P＜0.05)和25%(P＜0.01),LI均小于1,熊去氧胆酸组的成石率与LI与京尼平苷100mg/kg组相近.结论京尼平苷对地鼠胆固醇结石的形成可能具有抑制作用.     

栀子的抗炎镇痛作用研究

用３．０和１．０ｇ浸膏／ｋｇ２个剂量进行试验,探讨单味桅子７５％甲醇提取物对炎症组织的影响,结果表明,桅子浸膏可显著抑制醋酸诱发血管通透性增加,高、低剂量的抑制率分别为４４．７％和２５．６％;显著抑制叉菜所致大鼠足肿胀作用,第６小时抑制率分别为３３．６％和２５．４％;显著抑制棉球肉芽组织增生,抑制率分别为５４．１％和３３．０％;对醋酸诱发的小鼠扭体反应有一定抑制作用,抑制率分别为２６．８％和１８．     

栀子药材中三种有效成分HPLC定量分析结果不确定度的评定

采用HPLC方法同时测定栀子药材中栀子苷、绿原酸和藏红花素Ⅰ的含量,通过对测试方法流程进行分析,确定不确定度来源,结合含量测定方法验证数据,计算了不确定度分量、合成不确定度及扩展不确定度;结果表明,用HPLC方法定量分析栀子药材中栀子苷、绿原酸和藏红花素1的方法满足现代药物分析方法学的要求,且三者的扩展不确定度分别为0.1024,0.2254,0.1265.     

Aberrant left pulmonary artery (pulmonary artery sling): successful repair and 24 year follow-up report

A case of anomalous left pulmonary artery arising from the right and coursing behind the trachea and anterior to the esophagus (pulmonary artery sling) is reported. The therapy currently advocated for this disorder is ligation of the anomalous vessel and performance of a left pulmonary to main pulmonary arterial anastomosis anterior to the trachea. A median sternotomy incision allows total mobilization of the anomalous vessel, minimizes respiratory embarrassment and aids in performance of the anastomosis. In the present case, a postoperative pulmonary angiogram revealed a patent left pulmonary artery, the second reported instance of such patency. The first successful repair of pulmonary artery sling was reported by Potts and colleagues in 1954. After a 24 year follow-up period their patient has normal exercise tolerance and no perfusion to the left lung is evident on ventilation-perfusion scan.     

不同栀子饮片二萜色素类成分比较研究

目的：对栀子不同饮片二萜色素类成分进行比较研究。方法：HPLC同时测定4个主要成分(crocin 1，crocin 2，crocin 3，crocetin)含量，Kromasil C18柱，流动相为甲醇-乙腈-0.3％甲酸水不同梯度洗脱，检测波长440 nm，流速1.0 mL·min-1，柱温35 ℃。结果：4个成分在测定范围内线性关系较好(r>0.999 5)，平均回收率分别为97.77%，100.05%，98.40%，101.02%。结论：所建立的方法准确、可靠。栀子炮制前后色素类成分发生了明显变化，栀子不同饮片的含量变化呈现一定的规律性。     

栀子及其近缘类群的随机扩增多态DNA分析

目的探索栀子与其变种雀舌栀子、重瓣栀子及变型水栀子之间的亲缘关系。方法从56个随机引物中筛选出12个引物对栀子及其近缘类群进行RAPD分析,应用SPSS10.0分析软件中的Jaccard方法计算任意两样品间的相似系数,用组内聚类方法计算得出聚类树状图。结果共得到251个有效位点。聚类分析显示,栀子与重瓣栀子最先聚类,然后与水栀子聚类,最后与雀舌栀子聚类。结论重瓣栀子与栀子亲缘关系最近,雀舌栀子与栀子的亲缘关系最远。