月腺大戟根的生药形态学研究

目的：探讨作为中药狼毒来源之一的月腺大戟根的生药学鉴别特征。方法：采用性状、显微和薄层色谱等鉴别方法。结果：月腺大戟根木质部中存在复合维管束,略呈同心环状排列。薄壁组织中分布有石细胞及乳汁管,乳汁管内含黄色分泌物。在薄层色谱中可检出β－谷甾醇及２４－亚甲基环阿尔醇。结论：要木质部中的复合维管束、石细胞、含黄色分泌物的乳汁管及薄层色谱结果可作为月腺大戟根鉴别的主要依据。     

薄层色谱法测定降脂I号口服液中大黄酚的含量

目的：建立降脂I号口服液的质量控制方法。方法：薄层色谱法鉴别该中成药中的大黄素,大黄酚,大黄酸和大黄素甲醚,薄扫描法定量定大黄酚,结果：色谱板为硅胶H CMC－Na,展开剂正已烷－乙酸乙酯－甲酸（30：10：0．5）上层,薄层扫描波长434nm,大黄酚检测限为0.05ug,标准曲线Y＝4101,8X-1919(r=1.000),平均回收率99．77％,结论：所建立的方法特征性强,方法学考察满意,可作为降脂I号的质控方法。     

脑血通片显微及薄层鉴别方法研究

目的：建立脑血通片质量标准。方法采用显微镜检查法对需粉碎入药的白芷、丹参、蜈蚣、蝎子进行显微鉴别；采用TLC法对制剂中的丹参、川芎、当归进行定性鉴别。结果显微鉴别中相应药材组织特征均易察见，方法专属性好；薄层鉴别色谱斑点清晰，专属性强，阴性样品无干扰。结论白芷、丹参、全蝎和蜈蚣运用显微鉴别取得了理想的鉴别效果，可作为脑血通片质量控制标准的参考依据；薄层鉴别可以作为脑血通片有效定性的鉴别方法。     

茵陈五苓丸的质量标准研究

目的建立茵陈五苓丸的质量控制方法。方法采用显微鉴别、薄层色谱法对方中猪苓、茵陈、泽泻进行鉴别;采用高效液相色谱法测定绿原酸的含量。色谱条件：色谱柱为CAPCELL PAK C18（250mm×4.6mm,5μm）;流动相：乙腈-0.4%磷酸溶液（8：92）;检测波长：327nm;流速：1.0mL/min;柱温：40℃。结果采用显微鉴别和薄层色谱法鉴别方中猪苓、茵陈、泽泻。绿原酸在2.232～44.64mg·mL^-1范围内呈良好的线性关系（r=0.9999）,平均回收率为97.45%,RSD为0.68%（n=6）。结论本方法操作简单、准确、重复性好,可用于茵陈五苓丸的质量控制方法。     

胃舒颗粒薄层鉴别及含量测定

目的：建立胃舒粒质量标准。方法：采用薄层色谱法鉴别大黄,槟榔,枳实,薄层色谱扫描法测定样品中大黄素的含量。结果：大黄中大黄素在0．15－1．20ug(r=0.9964)范围内呈良好的线性关系。平均回收率为90．82％,RSD为1．98％（n=6)。结论：操作简易,斑点明显,分离效果好;含量测定干扰少,稳定性好,本法能很好地控制胃舒颗粒的质量。     

理气定喘丸的质量标准研究

目的建立理气定喘丸的质量控制方法。方法采用薄层色谱法对方中陈皮、知母、当归、紫苏叶进行鉴别。采用高效液相色谱法测定陈皮中橙皮苷的含量。色谱条件：色谱柱：ODS—C18色谱柱；流动相：乙腈-0．05％磷酸（21：79）；流速：1ml／min；检测波长：283nm；柱温：40℃。结果采用薄层色谱法鉴别了方中陈皮、当归、知母、紫苏叶。含量测定橙皮苷在0．1204～1．8072ug范围内线性良好，r=0．9997。平均回收率为101．9％，RSD为1．7％（n=6）。结论本方法重复性好、简便易行，可作为理气定喘丸的质量控制方法。     

小儿鼻炎片的质量标准研究

目的建立小儿鼻炎片的质量标准。方法采用薄层色谱法对小儿鼻炎片中的白芷、升麻、和防风等药材进行了薄层色谱鉴别;采用高效液相色谱法测定了君药藁本药材中阿魏酸的含量,色谱柱为Agilent ZORBAX SB-C18（250mm×4.6mm,5μm）分析柱;流动相：甲醇-0.1%磷酸溶液（25∶75）;流速：1.0mL/min;检测波长：320nm;柱温：40℃。结果薄层色谱法可鉴别出该制剂中的白芷、升麻、和防风。阿魏酸在0.028 8～5.67μg范围内有良好的线性关系,r=0.999 5,平均回收率为100.6%,RSD为1.54%（n=6）。结论该方法准确、灵敏、重复性好,能有效地控制小儿鼻炎片的质量。     

小儿润肺止咳口服液质量标准研究

目的 改进小儿润肺止咳口服液的质量标准.方法 采用薄层色谱法对制剂中的甘草、橘红进行定性鉴别,对其中甘草的薄层色谱方法进行了改进;增加了高效液相色谱法测定黄芩中黄芩苷的含量.结果 薄层色谱鉴别色谱斑点清晰,阴性无干扰;含量测定中黄芩苷在9.82～49.10μg/ml范围内线性关系良好(r=0.9999),半均加样回收率...     

清胃保安丸的质量标准研究

目的建立清胃保安丸的质量标准。方法采用薄层色谱法鉴别清胃保安丸中白术？山楂？枳实、青皮？甘草？槟榔成分,采用高效液相色谱法测定厚朴酚与和厚朴酚含量。色谱柱：依利特C18（250 mm×4.6 mm,5μm）分析柱;流动相：甲醇-水（1∶1）,流速：1.0 ml/min,检测波长：222 nm。柱温：40℃。结果薄层色谱鉴别的6种供试品色谱,在与对照品或对照药材色谱相应的位置上均能显相同颜色的斑点;厚朴酚、和厚朴酚线性范围分别为0.04700.4696μg、0.02950.2952μg,r=0.9999,平均回收率分别为98.89%、101.94%,RSD分别为0.98%、0.96%（n=6）。结论该方法操作简便、灵敏准确,重复性好,可作为该制剂的质量控制标准。     

风痛宁丸质量标准的研究

目的 建立风痛宁丸的质量标准。方法 采用薄层色谱法对制剂中马钱子、川乌、川芎、独活进行定性鉴别，采用高效液相色谱法对士的宁进行了含量测定；结果 薄层色谱鉴别的4种供试品色谱，在与对照品或对照药材色谱相应的位置上均能显示相同颜色的斑点；含量测定平均回收率为98．92％，RSD为2．23％；结论 该方法操作简便、灵敏准确，重现性好，可作为该制剂的质量控制标准。     

The role of interventional radiology in trauma

Introduction Interventional Radiology has evolved into a specialty having enormous input into the care of the traumatized patient.In all hospitals,regardless of size,the Interventional Radiologist must consider their relationships with the trauma service in order to     

Diagnóstico ecográfico del neumotórax

The ultrasonographic diagnosis of pneumothorax is based on the analysis of artifacts. It is possible to confirm or rule out pneumothorax by combining the following signs: lung sliding, the A and B lines, and the lung point. One fundamental advantage of lung ultrasonography is its easy access in any critical situation, especially in patients in the intensive care unit. For this reason, chest ultrasonography can be used as an alternative to plain-film X-rays and computed tomography in critical patients and in patients with normal plain films in whom pneumothorax is strongly suspected, as well as to evaluate the extent of the pneumothorax and monitor its evolution.     

Carbohydrate Supplementation during Exercise: Does It Help? How Much is Too Much?

KEY POINTS· Carbohydrate intake during exercise can delay the onset of fatigue and improve performance of prolonged exercise as well as exercise of shorter duration and greater intensity (e.g., continuous exercise lasting about 1h and intermittent high-intensity exercise), but the mechanisms by which performance is improved are different.     

磁共振DWI和动态增强鉴别颅底脊索瘤和侵袭性垂体瘤的应用

目的 探讨磁共振扩散加权成像(DWI)和动态增强在颅底脊索瘤和侵袭性垂体瘤(IPA)鉴别诊断中的应用价值.方法 搜集经手术病理证实且影像学有鞍区破坏的颅底脊索瘤患者15例、向鼻咽部侵犯的IPA患者20例.测量二者的表观扩散系数(ADC)值,绘制受试者工作特征曲线(ROC),分析动态增强曲线的类型,统计达峰时间(TTP)、增强峰值(EP)和最大对比增强率(MCER),分析各个参数在鉴别诊断中的价值.结果 颅底脊索瘤的ADC值为(1.274±0.07)×10-3mm2/s,高于IPA ADC值(0.672±0.03) ×10-3 mm2/s(P ＜0.001),ADC阈值为0.964×10-3mm2/s时,ROC曲线下面积为0.997,敏感度为93.3％,特异度为100％.颅底脊索瘤时间-信号强度曲线(TIC)Ⅰ型14例,TICⅢ型1例,此例TICⅢ型者TTP约40 s;IPA TIC Ⅰ型7例,TICⅢ型13例.颅底脊索瘤和IPA的EP、MCER差异均有统计学意义(P ＜0.001).结论 ADC值和TIC的类型及其相关参数(EP,MCER)有助于颅底脊索瘤和IPA之间的鉴别.     

Treatment of intrahepatic arteriovenous fistula in hepatocellular carcinoma with N-butyl-2-cyanoacrylate

Primary hepatocellular carcinoma (HCC) continues to be one of the most common malignancies with an incidence of approximately one million cases per year and a dismal prognosis; some authors have reported a median survival of 1 ～ 2 months after diagnosis. Although surgery remains the only hope for cure, few patients are candidates[1,2].     

U50,488H对正常及缺氧心肌细胞L型钙电流的作用

目的 探讨心脏阿片受体和β-受体相互作用的机制。方法 采用全细胞膜片钳技术，观察U50，488H(β-阿片受体选择性激动剂)对正常和缺氧心肌细胞L型钙电流的作用。结果 U50，488H剂量依赖性(0．1～100μmol／L)抑制正常心肌细胞的L型钙电流及异丙肾上腺素(0．1μmol／L)激动的钙电流，而细胞缺氧后，这一抑制作用减弱；U50，488H对Forskolin(10μmol／L)激动的L型钙电流无明显影响。结论 β-阿片受体对β-受体信号的负性调节作用在细胞缺氧后减弱，其作用位点可能发生于β-受体与腺苷酸环化酶环节之间。     

Overtraining syndrome : la piste de la suractivité ?

Introduction

Overtraining is clearly a multifactorial disturbance. We aimed at evaluating the relative importance of overactivity and nutritional imbalances.

Methods

A comparison of 17 footballers with seven subjects with a diagnosis of overtraining evidenced that the two groups differ by energy expenditure resulting from physical activity (1573 ± 378.6 kcal/d from 804.7 ± 184.7 kcal/d) while food intake does not exhibit significant differences.

Conclusion

In this sample of subjects, inadequate food intake is found in both groups, so that overtraining appears rather characterized by a higher level of physical activity. Therefore, a relative energy deficit resulting from overactivity rather than dietary mistakes appears to explain the syndrome in these athletes, who are thus truly “overtrained”.     

Prenatal detection of brain anomalies with ultrasonography

Ultrasound is the first-line imaging study of the fetal brain performed at 12, 22 and 32 weeks of gestation. The very structured evaluation of biometric and morphological data, facilitated by the use of a checklist, ensures a high quality examination. All patients where an anomaly of any key element is suspected should be referred to a center dedicated to prenatal diagnosis for confirmation irrespective of the gestational age. Prenatal diagnosis plays a significant role in France since medical interruption of pregnancy until term is authorized.