基于灰色关联度分析和聚类分析的3种滇产重楼抗肝癌作用谱效关系探索

目的:研究长柱重楼、滇重楼和南重楼的HPLC指纹图谱与其抗肝癌作用的谱效关系,为明确重楼抗肝癌作用的物质基础提供实验依据。方法:采用HPLC建立3种重楼提取物的指纹图谱,流动相乙腈(A)-水(B)梯度洗脱(0～10 min,20%A; 10～20 min,20%～25%A; 20～30 min,25%～30%A; 30～40 min,30%～35%A; 40～50 min,35%～40%A; 50～60 min,40%A; 60～75 min,40%～45%A; 75～80 min,45%～60%A),流速0. 9 m L·min~(-1),检测波长203 nm;利用噻唑蓝(MTT)比色法测定3种重楼提取物对肝癌HepG2细胞的增殖抑制作用,计算半数抑制浓度(IC_(50));运用聚类分析(HCA)和灰色关联度分析(GRA)研究3种重楼指纹图谱和抗肝癌作用的关系,找出对抗肝癌作用贡献较大的成分。结果:在3种重楼的HPLC指纹图谱中,确定其中11个色谱峰为共有峰。作用时间72 h时长柱重楼、滇重楼、南重楼的IC_(50)分别为148. 33,178. 87,208. 09 mg·L~(-1),其中长柱重楼的抗肝癌活性最强。灰色关联度结果显示,滇重楼共有峰中关联度较高的为1～10号峰,长柱重楼共有峰关联度较高的为1～7号峰,南重楼共有峰中关联度较高的为1～4,6～10,N1号峰,与IC_(50)关联度均0. 7。各重楼变量的聚类分析结果显示,可与IC_(50)聚为一类的色谱峰的关联度均 0. 7。结论:建立了3种重楼的HPLC指纹图谱,重复性良好。3种重楼中的1～4,6和7号色谱峰对抗肝癌药效贡献最大。     

基于网络药理学的气滞胃痛颗粒抗炎镇痛活性作用分析

目的通过网络药理学的方法预测气滞胃痛颗粒抗炎镇痛主要活性成分的作用靶点,结合中医方解配伍理论对其多成分-多靶点-多通路的作用进行分析。方法基于TCMSP中药系统生物学分析数据库收集气滞胃痛颗粒中6味中药的主要化学成分,并借助LC-MS技术对所筛成分进行分析,通过TCMSP检索和Pharmmapper软件预测获取各成分主要的作用靶标,并通过DIP数据库,利用蛋白质相互作用信息建立药物靶标与炎症疼痛靶标的关联,构建药物-靶标-疾病网络,通过网络特征分析气滞胃痛颗粒抗炎镇痛的作用靶标,阐释其抗炎镇痛的主要作用机制。结果根据网络分析,共有44个炎症疼痛靶点与气滞胃痛颗粒密切相关,其中直接作用靶点有20个,主要是对环加氧酶-2(COX-2)和诱导型一氧化氮合酶(i NOS)等蛋白酶的作用,作用机制可能与调节肿瘤坏死因子(TNF)信号通路、NOD样受体(NLR)信号通路、血管内皮生长因子(VEGF)信号通路等与炎症疼痛密切相关的信号通路有关。结论气滞胃痛颗粒抗炎镇痛作用体现了中药多成分、多靶点、多途径的作用特点,该研究为深入阐释气滞胃痛颗粒抗炎镇痛作用机制提供科学依据,并且进一步说明了中医药古方配伍理论的科学性。     

某高校护理和预防两个专业大学生核黄素营养状况分析

目的了解大学生核黄素营养状况，并探讨其影响因素。方法对护理、预防专业的学生进行核黄素4h负荷尿试验，用荧光光度法测定核黄素含量。结果护理学专业的学生核黄素不足的占78．79％，正常占10．10％，充裕的占11.31％。预防医学专业的学生核黄素不足的占74．42％，正常的占16．28％，充裕的占9．3％。专业之间差异无显著性意义（P〉0．05）。结论大学生的核黄素营养水平普遍较低，其中动物性食品摄人较少、学生对合理膳食的营养知识缺乏是核黄素摄人不足的主要原因。     

彝药喙尾琵琶甲的药材质量标准研究

目的:制定彝药喙尾琵琶甲药材质量标准,为药用动物资源的开发利用提供科学依据.方法:采用生药学和薄层色谱法对其进行研究,并测定其水分、灰分和浸出物的含量.结累:对喙尾琵琶甲的性状、显微特征进行了描述;对三个不同产地的喙尾琵琶甲进行了薄层色谱鉴别,测定了水分、总灰分、酸不溶性灰分、重金属和浸出物的含量.结论:较全面的考察了喙尾琵琶甲的各项质量指标,为制定喙尾琵琶甲的质量标准提供了依据.     

云南省獐牙菜属药用植物资源调查

目的:弄清云南省獐牙菜属药用植物资源的种类及分布,为獐牙菜属药用植物的持续利用和合理开发提供科学依据.方法:查阅文献资料,实地调查和标本采集相结合.结果:确定了云南省獐牙菜属35个种和2个变种,其中1种为新记录种,供药用的有22种,并列出了分类检索表.结论:为云南省獐牙菜属药用植物资源的综合利用和深入研究提供了一定的依据.     

Conus ependymoma with holocord syringohydromyelia and syringobulbia.

We report a 24-year-old woman with an intramedullary conus ependymoma associated with holocord syringohydromyelia and syringobulbia. The tumor was removed and surgery for decompression of the syringohydromyelia was not considered at the first operation. In the follow-up examinations, MRI showed significant and steady improvement of syringohydromyelia. Symptoms associated with syringohydromyelia also disappeared. The cause of syringohydromyelia accompanying intradural spinal cord tumors appears to be either direct blockade of the central canal or secondary interruption of the central canal flow by compression of the perimedullary cerebrospinal fluid flow. As removal of the mass often corrects both these likely causes of the syringohydromyelia, no additional treatment for the drainage of the hydromyelia cavity syrinx is usually necessary.     

骶髂螺钉固定在骶髂关节脱位中的应用解剖学研究

目的 :为应用骶髂螺钉固定骶髂关节脱位提供形态学依据。方法 :对 3 0具成人干燥骨盆标本 ,模拟骶髂螺钉内固定手术并作CT扫描 ,对进针点与不同解剖结构之间的距离、进针的方向、进针的深度以及S1骶孔上方的骶骨翼的前后径和上下径进行测量。结果 :进针点距臀肌线的距离为 ( 2 0 70± 3 2 7)mm ,距坐骨大切迹的距离为( 3 5 0 0± 1 91)mm ;轴位及冠状位CT测量进针与髂骨外板的交角分别为 ( 90 18± 2 69)°和 ( 90 40± 2 87)° ;进针深度为 ( 67 77± 3 63 )mm ;S1骶孔上方骶骨翼的前后径和上下径分别为 ( 18 2 6± 2 0 6)mm和 ( 18 74± 1 5 1)mm。结论 :临床应用骶髂螺钉固定需选择恰当的进针点和进针方向 ,术中需行骨盆正位、入口位和出口位的透视以确定螺钉植入的准确性     

A reverse-flow composite flap in the rat.

Reverse-flow flaps are currently particularly used for the reconstruction of defects of the distal part of the extremities. Despite their common usage there have been many reports of postoperative complications, especially resulting in partial or total flap necrosis. There is insufficient knowledge of flap haemodynamics, physiology and wound healing properties in reverse-flow flaps. Development of the proper experimental models is needed to investigate these issues. The purpose of this study was to describe a new reverse-flow flap model in the rat. A total of 20 adult Wistar rats weighing 200-250 g were used in this experiment. In five rats, the vascular anatomy of the auricle of the rat was determined by anatomic dissection and microangiography. In the experimental group (N=5), 1x1 cm reverse-flow composite flaps were harvested as a semi-island shape, based on the distal course of the medial branch of the anterior auricular artery. In the control group, consisting of five rats, the flap was designed and raised based on the proximal course of the medial auricular artery, again in a semi-island shape. In the remaining five animals, a square-shaped composite tissue of the whole layer of the auricle, 1x1 cm in size, was harvested dividing all the bases circumferentially. The composite tissue was replaced in situ. While the former was considered a conventional antegrade-flow flap subgroup, the latter was designated as a graft subgroup. All flaps were replaced in situ. The survival of the flap was evaluated on postoperative day 7 by direct observation and microangiography. The skin island of all the reverse-flow flaps and conventional antegrade-flow flaps survived completely giving a success rate of 100%, whereas all grafts in the control group underwent complete necrosis. Microangiographic studies revealed the vascularity of the reverse-flow and antegrade-flow flaps, identifying the course of the auricular arteries. In conclusion, with its evident advantages of easy to design and harvesting, reliable survival pattern and consistent vascular structure, our new flap model will provide a means for future studies on flap haemodynamics, physiology in reverse-flow flaps.     

一起食源性群体旋毛虫感染调查报告

2004年2月，云南大理市发生一起食源性群体旋毛虫感染，累计发病132人，发病者年龄2．5～75岁。调查结果显示，患者均有集体食用生猪肉史，用餐12d后陆续发病。经病原治疗和对症治疗后病人均痊愈。     

云南不同产地灯盏细辛药材中灯盏乙素的HPLC测定

目的：以灯盏乙素的含量为指标来比较云南不同产地灯盏细辛药材的质量差异。方法：灯盏细辛药材经50％乙醇提取，用高效液相色谱方法（C18柱，用甲醇-乙腈-0．5％甲酸为流动相梯度洗脱）测定灯盏乙素的含量。结果：云南不同产地灯盏细辛中灯盏乙素的含量在0．72％～2．95％之间，平均含量1．40％．结论：云南不同产地灯盏细辛药材质量基本一致，以弥勒县等传统产区的药材灯盏乙素含量相对较高。