NaFeEDTA预防大鼠铅中毒的研究及其对锌、铜的影响

为探讨乙二胺四乙酸铁钠 (NaFeEDTA)在预防大鼠铅中毒及减低铅毒性中的作用 ,同时研究其对锌、铜二元素的影响 ,采用随机分组的动物实验设计方法 ,将 60只Wistar大鼠随机分为空白对照组、模型对照组、阳性药物组和高、中、低NaFeEDTA组 ,共 6组 ,除空白对照组外 ,对其余各组大鼠进行持续性染铅 ,而且除模型对照组外的 4个染铅组分别同时给予二巯基丁二酸 (DMSA)、高、中、低浓度的NaFeEDTA溶液。 5周后实验结束 ,对相关指标进行测定。结果显示 ,三个NaFeEDTA组的血红蛋白含量均显著高于其它各组 ,同时其血铅、脑铅、肝脏铅、肾脏铅及胫骨铅含量显著低于模型对照组 ,而且它们的肝脏铅、肾脏铅和胫骨铅含量与每日每只大鼠铁补充量之间存在显著负相关 ,相关系数分别为 - 0 4432、- 0 61 34和 - 0 3878;除中、高浓度NaFeEDTA组的脑锌水平低于模型对照组以及低浓度NaFeEDTA组的肾脏铜含量高于模型对照组外 ,其余各NaFeEDTA组的脏器锌、铜含量与模型对照组相比均无显著性差异。提示NaFeEDTA可有效提高大鼠的血红蛋白含量 ,能够预防大鼠铅中毒 ,减低铅对大鼠的毒性作用 ;同时对体内锌、铜含量无太大影响     

MRI of the brain in chronic carbon monoxide poisoning

We examined 13 patients with chronic carbon monoxide (CO) poisoning by magnetic resonance imaging (MRI); all of them had been in an explosion in a coal mine 25 years previously. Symmetrical globus pallidus lesions were observed in 12, as was degeneration of the white matter, with focal cortical atrophy. The temporal parietal and occipital lobes were usually affected, the parietooccipital region being the most frequently and extensively damaged. Of the 12 patients with white matter degeneration 7 had definitely asymmetrical cortical and subcortical lesions. There were 6 patients with dilated temporal horns, probably due to atrophy of the hippocampal gyri. A history of CO inhalation and an awareness of the typical distributions of lesions are important for recognition of the effects of CO poisoning, especially when patients are in the chronic stage.     

Plant cardiac glycosides and digoxin Fab antibody

The potential application of the Digoxin Fab antibody (Wellcome Digibind) in the clinical management of plant poisoning was investigated. The cardiac glycoside contents of various Australian plants were studied using immunoassay techniques. The cross-reactions of the Fab antibody and two digoxin assay antibodies against extracts of these plants were also studied. Results obtained indicated that the Digibind antibody cross-reacted with a wide range of glycosides contained in Australian plants and therefore could be of use in the treatment of life-threatening plant poisoning.     

The effects of alcohol and benzodiazepines on the severity of ski accidents.

Urine samples from 402 victims of ski accidents were analyzed for the presence of benzodiazepines (BZD) and alcohol. Eighty-one (20%) samples were positive for alcohol; BZD were detected in 34 (8.5%) cases. Ten of the samples (2.5%) were found to be positive for both alcohol and BZD. Subjects who were positive for either alcohol or BZD or both were older than the other persons examined. The prevalence of alcohol was significantly higher among male accident victims. BZD intake could be demonstrated to have a significant influence on the severity of injuries. Besides an increased awareness of the need for skier education regarding drug use, heightened attention of medical caregivers is warranted to inform their patients about potential accident hazards in sport activities when BZD are prescribed.     

缺血性脑血管病患者的血脂水平

目的分析缺血性脑血管病（ICVD）患者的血脂水平，为今后预防保健及康复干预决策的制定提供依据。方法在佛山市第一人民医院病案数据库中检索1991-2004年诊断为ICVD的病例共2886例，其中2000-2004年ICVD患者共1430例为一亚组，以我院同时期保健科随机选取的400名健康体检人群为对照组，记录血脂情况，进行对照分析。结果血TC、TG和LDL—C水平ICVD患者组明显高于健康体检人群，差异有统计学意义。男女两性血脂水平均随年龄增加而逐渐增高，50岁以上女性血脂水平明显高于同龄组男性。血脂代谢异常患病率随着年代的推移呈逐步上升趋势，总胆固醇从1991—1994年的24．5％到2001-2004年的38．1％（男性）和22．3％到38．5％（女性），且明显高于国内2000-2001年普查人群高脂血症的患病率。结论佛山地区血脂异常是ICVD的重要原因之一。     

三匹风总黄酮的提取

本研究探讨了中草药“三匹风”主要成份之一的黄酮类化合物的提取方法和化学鉴定法。经实验优选,确定采用70％乙醇提取法分离提取三匹风中的总黄酮成份。     

苯丙胺急性中毒患者的急救及护理

笔总结了2000年5月-2002年3月收治的9例口服苯丙胺中毒患救护成功的体会。（1）及早，彻底，反复洗胃，有效清除消化吸收的毒物，洗胃过程中做好安全约束措施，使洗胃能顺利完成，对中毒较深的病人结合床边血液透析，以提高疗效。（2）迅速建立静脉通路，合理使用安定，利尿剂，激素，加强对症处理。（3）严密观察病情变化，保持呼吸道通畅。（4）做好基础护理，安全保护及心理护理，9例患均治愈出院。