SARS患者外周血中T淋巴细胞亚群变化及其临床意义

目的 了解SARS患者外周血T淋巴细胞亚群的变化规律及其临床意义。方法 采用免疫细胞化学方法对12例临床确诊SARS患者和20例健康献血员外周血淋巴细胞亚群进行检测。结果12例患者外周血CD~ 、CD_4~ 和CD_8~ 细胞的百分率均较对照组明显降低(P值均<0.05),其中CD_4~ 细胞下降幅度最大;CD_4~ 细胞减少与淋巴细胞降低的关联性最明显(r=0.679,P<0.05)。结论 SARS患者细胞免疫功能存在明显损伤,临床应用糖皮质激素宜严格掌握指征。     

金菊花乙酸乙酯提取物对大鼠实验性肝损伤的影响

目的：观察金菊花乙酸乙酯提取物（EAEDM）对肝损害的防护作用,方法：建立大鼠急性乙醇中毒肝损害模型,通过大鼠灌胃EAEDM,以对照组对照,测定血清过氧化脂质（MDA）,谷胱甘肽过氧化物酶（GSH－PX）,血清谷丙转氨酶（ALT）和血清谷草转氨酶（AST）的含量,结果：EAEDM能降低MDA,ALT和AST的活性,减少肝脏MDA的生成,增加GSH－PX的活性,结论：EAEDM对肝损伤具有防护作用。     

TSGF、NSE和CYFRA-21-1联合检测在肺癌诊治中的应用

目的:探讨TSGF、NSE和CYFRA-21-1 3种血清肿瘤标志物单独及联合检测在肺癌诊断、手术治疗效果评价及转移复发监测中的应用价值;方法:显色法测定TSGF、酶联免疫吸附法测定NSE和放射免疫法测定CYFRA-21-1,共测定50例健康成人及36例不同分型的肺癌患者的血清标本,并对其中24例患者进行了术后3个月～2年的随访监测。结果:健康人组TSGF为53.7±5.7U/mL,NSE为2.7±0.7ng/mL,CYFRA-21-1为1.4±0.8μg/mL。肺癌患者各型3项血清肿瘤标志物中的任何一项均较健康人组有显著增高(P<0.05),其敏感性与病理分型相关。术前TSGF为76.4±7.6U/mL,NSE为15.2±6.1ng/mL,CYFRA-21-1为11.2±8.6μg/m,术后3项肿瘤标志物检测的数值较术前的明显下降(P<0.05);而当术后转移复发时明显增高,与术前差异无显著意义(P>0.05)。3项血清肿瘤标志物经组合后,敏感性显著提高。结论:TSGF、NSE和CYFRA-21-1对肺癌的诊断、疗效判断及转移或复发监测有意义。TSGF、CYFRA-21-1二者联合检测可作为鳞癌诊治的首选标志。TSGF、NSE二者联合检测可作为小细胞性肺癌首选指标。     

hTERT启动子引导的NIS基因重组腺病毒的构建

目的：构建在人端粒酶逆转录酶（hTERT）核心启动子引导钠碘转运体（NIS）基因的重组腺病毒。方法：PCR扩增目的片断;通过荧光分析实验,选取启动效果最好的hTERT启动子片断;建立3个重组腺病毒：Ad—hTERT—NIS、Ad—CMV—NIS及Ad—CMV-TPO,培养胶质瘤细胞系U87、U251及细胞系MRC-5（正常人胚胎成纤维细胞系）,然后转染病毒并进行westem bolt分析等实验。结果：胶质瘤细胞U87及U251中端粒酶为阳性,hTERT启动子片段204启动效率比较其他片段效率高。该启动子片段可以引导NIS基因的靶向性表达。结论：成功构建在hTERT核心启动子引导NIS基因的Ad—hTERT—NIS及重组腺病毒Ad—CMV—NIS和Ad-CMV—TPO,该重组腺病毒转染胶质细胞U87和U251后能成功表达NIS及TPO基因。     

黑种草子化学成分研究

从民族药黑种草子(Semen nigellae)中分离得到七个化合物,其中两个为新化合物,分别命名为黑种草甙(nigeglanoside)和黑种草糖(nigelancae)。经理化常数测定和光谱解析确定其结构分别为山萘酚-3-O-β-D-吡喃半乳糖基(1→3)-β-D-吡喃葡萄糖基(1→3)-β-D-吡喃葡萄糖甙和2-O-α-D-吡喃半乳糖基(1→4)-β-D-吡喃葡萄糖基-β-D-呋喃果糖甙。另外五个已知化合物分别为附子碱的氯化物(fuzitinechloride)、常春藤皂甙、蔗糖(sucrose)、β-谷甾醇(β-sitosterol)和环劳顿醇(cyclolandenol)。     

SEQUENCE TYPING CONFIRMS THAT CAMPYLOBACTER JEJUNI STRAINS ASSOCIATED WITH GUILLAIN-BARRÉ AND MILLER-FISHER SYNDROMES ARE OF DIVERSE GENETIC LINEAGE, SEROTYPE, AND FLAGELLA TYPE

To determine the involvement of the corticospinal tract in Guillain-Barré syndrome (GBS), we examined central motor conduction in patients with GBS-like symptoms and hyperreflexia using a magnetic stimulation technique. The subjects were 3 patients who exhibited ascending muscle weakness 2–4 weeks after preceding infections. Deep tendon reflexes were exaggerated in all four limbs of the 3 patients. The results of cerebrospinal fluid examinations revealed protein elevation without pleocytosis. The serum anti-GM(1) antibody titer was elevated in 2 patients. The results of nerve conduction study revealed axonal motor neuropathy and normal F-wave conduction. Central motor conduction time (CMCT) in patients with hyperreflexia was significantly delayed compared to that in patients with GBS and areflexia (p < 0.001), and the delayed CMCTs were significantly improved in the recovery periods (p < 0.001). Although hyperreflexia is a controversial symptom in patients with GBS, these findings indicate that there is functional corticospinal tract involvement in patients with a GBS variant.     

Effect of corticosteroid injection for trochanter pain syndrome: design of a randomised clinical trial in general practice

Background  

Regional pain in the hip in adults is a common cause of a general practitioner visit. A considerable part of patients suffer from (greater) trochanteric pain syndrome or trochanteric bursitis. Local corticosteroid injections is one of the treatment options. Although clear evidence is lacking, small observational studies suggest that this treatment is effective in the short-term follow-up. So far, there are no randomised controlled trials available evaluating the efficacy of injection therapy.