凝血栓蛋白1基因异常甲基化与大肠腺癌关联

目的 探讨凝血栓蛋白l（THBS1）基因启动子CpG岛异常甲基化与大肠腺癌及其临床病理特征的关联。方法 THBS1基因甲基化状态用甲基化特异性PCR检测。结果 大肠腺癌、癌旁组织中，THBSI基因启动子cpG岛甲基化率的差异有显著性（X^2=5．93，P=0．025）；老年患者肿瘤组织中THBS1基因甲基化率明显商于非老年患者（X^2=5.68，P=0．017），直径≥3cm的肿瘤组织中THBSl基因甲基化率显著高于直径〈3cm的肿瘤（X^2=4．16，P=0．041），C期和D期肿瘤组织中THBS1基因甲基化率显著高于A期或B期肿瘤（X^2=8．04，u=2，P=0．018）。结论 THBS1基因甲基化与大肠腺癌的发生有关，肿瘤以老年、晚期和直径较大的肿瘤多见。     

中西医结合冲击治疗免疫性不孕的临床研究

目的：探讨中西医结合冲击治疗对女性免疫性不孕症病人的治疗效果。方法：应用酶联免疫吸附法（ELISA）对560例病人血清和宫颈粘液中的抗精子抗体（AsAb）、抗子宫内膜抗体（IAEmAb）、抗卵巢抗体（AOVAb、抗人绒毛膜促性腺激素抗体（AhCGAb）进行检测，采用中药，维生素E、维生素C对所有抗体阳性者进行周期性治疗，2个周期为1疗程。结果：560例病人血清中共检测中各种抗体641例例次，宫颈粘液中共检出各抗体596例次。治疗1疗程，AsAb、AEmAb、AOVAb、AhCGAb在血清的转阴率分别为87．4％、85．4％、74．0％、86．5％，在宫颈粘液中的转阴率分别为93．7％、95．0％、87．0％，94．2％，在宫内颈粘液中的转阴率分别为90．1％、94．0％、94．7％、100．0％，抗体转阴后妊娠率高达58．2％，结论：中西医结合冲击治疗对免疫性不孕抗体转阴所需时间短，转阴率和转阴后妊娠率高，对AsAb、AEmAb、AOVAb与AhCGAb等所致的免疫性不孕均有显著疗效。     

组织多肽特异性抗原在原发性肝癌中的临床应用

OBJECTIVE: To evaluate the clinical value of serum tissue polypeptide specific antigen (TPS) for primary hepatic cancer in comparison with alpha-fetoprotein (AFP). METHODS: TPS and AFP were measured by enzyme-linked immunosorbent assay (ELISA) in 85 patients with primary hepatic cancer, 19 with metastatic hepatic cancer, 35 with liver cirrhosis, 22 with chronic hepatitis and 50 healthy control subjects. RESULTS: Serum AFP levels were elevated in patients with hepatocellular carcinoma in comparison with that in cholangiocarcinoma patients (P=0.037), but the difference was not significant (P=0.737). Serum TPS levels were significantly correlated with the tumor size (P=0.001), but not with the number of the tumors, portal invasion, extrahepatic metastasis, clinical stage or histological differentiation (P>0.05). A significant correlation was observed between AFP level and tumor size (P=0.028), portal invasion(P=0.005), and histological differentiation (P=0.000). CONCLUSION: TPS alone offers no more clues than AFP for the diagnosis of primary hepatic cancer, though it can be helpful for the diagnosis of cholangiocarcinoma. It has only limited clinical utility as a marker for primary hepatic cancer.     

In vitro anti‐adhesive activity of green tea extract against pathogen adhesion

Camellia sinensis polysaccharide has been reported to possess anti‐adhesive activity against pathogens. The present study was designed to investigate whether hot water extracts obtained from green tea leaves might inhibit pathogen adhesion to human or mouse cell lines. Green tea extract‐4 (CSI‐4) with the maximum yield of 4% (w/v) is composed of a major proportion of carbohydrates containing 40% uronic acids, but lack of catechins. It showed strong inhibitory activities against hemagglutination mediated by pathogens Helicobacter pylori, Propionibacterium acnes and Staphylococcus aureus with the minimum inhibitory concentrations of 0.01‐0.5 mg/mL. CSI‐4 further demonstrated an inhibitory effect on the adhesion of these pathogens to host cell lines with the IC₅₀ values (50% inhibition of adhesion) of 0.14–2.3 mg/mL. It exhibited the highest activity against P. acnes, but no inhibitory effects were observed against Lactobacillus acidophilus, Bifidobacterium bifidum, Escherichia coli, or Staphylococcus epidermidis. Our results suggest that CSI‐4 may exert a selective anti‐adhesive effect against certain pathogenic bacteria with no adverse effects against beneficial or commensal bacteria. Copyright © 2008 John Wiley & Sons, Ltd.     

Chronic fatigue of the small enterprise workers participating in an occupational health checkup center in southern Taiwan

Purpose  There has been increasing interest in the occupational health of workers in small enterprises, especially in developing countries. This study examines the association between psychosocial job characteristics and fatigue, and attempts to identify risk factors for fatigue among workers of small enterprises in southern Taiwan. Methods  A structured questionnaire was administered to workers receiving regular health examinations between August 2005 and January 2006. The questionnaire collected demographic information and data on working conditions, personal health status and life styles. It also collected information on psychosocial job characteristics, fatigue and psychological distress using three instruments. Results  A total of 647 workers with mean age of 43.7 were completed. Probable fatigue was found in 34.6% of the sample. Fatigue was found by multiple logistic regressions to be associated with the lack of exercise, working in shifts, depression score and lack of social support at workplace. Conclusions  This study found associations between life style, psychosocial job characteristics and fatigue. Because the high prevalence of probable fatigue was found in such small enterprises, the authors suggest that a short interview with some quick questionnaires in health checkup for these small enterprise workers are helpful to early detect psychosocial and fatigue problems.     

妊娠安胃汤对妊娠呕吐患者胃肠道动力影响的临床研究

探讨中药妊娠安胃汤对妊娠呕吐的疗效及对胃肠道动力的影响.方法:将40例妊娠呕吐患者随机分为两组,每组20例,治疗组给予妊娠安胃汤治疗,对照组给予维生素C、维生素B6和10%氯化钾注射液静脉滴注,两组均以15 d为1个疗程.对各组治疗前后胃动素(MTL)、血管活性肠肽(VIP)、胃泌素(GAS)进行观察和对比,以明确对患者胃肠道动力的影响.结果:治疗组显效率85%,总有效率90%;对照组显效率70%,总有效率85%,两组疗效比较有极显著差异(P<0.01).治疗组治疗后VIP、GAS明显下降,MTL明显升高,与治疗前比较均具有极显著差异(P<0.01),与对照组治疗后比较也有极显著差异(P<0.01).结论:妊娠安胃汤对妊娠呕吐的治疗是通过降低VIP、GAS,升高MTL,从而对患者胃肠道动力进行调节达到治疗的目的.     

单硝酸异山梨酯联合磷酸川芎嗪治疗不稳定型心绞痛临床观察

目的观察单硝酸并山梨酯联合磷酸川芎嗪治疗不稳定型心绞痛的临床疗效。方法将80例患者随机分为两组。对照组在常规治疗的基础上加用单硝酸异山梨酯治疗，治疗组在常规治疗基础上，加用磷酸川芎嗪治疗。观察治疗前后心绞痛发作次数、心绞痛持续时间、发作间隔时间、Holter24h缺血总时间等变化。结果治疗组总有效率90．0％。优于时照组的77．5％（P〈0．05），且治疗组在心绞痛发作次数、持续时间、发作间隔时间及Hoher 24h缺血总时间改善方面优于对照组（P〈0．05）。结论单硝酸异山梨酯联合磷酸川芎嗪治疗不稳定型心绞痛疗效确切。     

心血管疾病并发焦虑抑郁症状2050例心理干预治疗分析

目的:了解心血管疾病并发焦虑抑郁症状的情况并探讨心理干预等对焦虑抑郁症状的影响。方法:对住院的2050例心血管疾病并发焦虑抑郁症状的患者进行回顾性分析。结果:心血管疾病患者中并发有焦虑抑郁症状者占56%;其常表现为类似心绞痛、左心衰竭症状,可并发有心律失常;高血压病并发有焦虑抑郁患者对血压升高的耐受性差,动态血压检查以非勺型改变者居多;单纯使用心血管药物治疗效果欠佳,心理干预,焦虑抑郁症状严重者结合抗焦虑抑郁药物疗效显著。结论:心血管疾病患者常并发焦虑抑郁症状,心理干预治疗等可有效改善患者的症状。     

Delta hepatitis virus infection in China

To assess the prevalence, epidemiological features and prognostic implications of hepatitis D (Delta) in Sichuan Province, The People's Republic of China, 649 sera (515 from HBsAg positive patients and 134 from HBsAg negative subjects) were tested by radioimmunoassay (RIA) for antibody to the hepatitis D virus (anti-HD). Forty-seven sera (7.2%) showed some degree of reactivity. Serial dilutions of these sera indicated that prozoning was not responsible for the equivocal results. Thirty-four of the 47 sera were submitted under code to a second laboratory for independent analysis. According to those results anti-HD antibodies were detected in four of these sera. The overall prevalence of anti-HD in the HBsAg positive patients therefore was 0.8% (4/515). On the basis of clinical, biochemical and histological data 427 HBsAg positive sera were further divided into acute Type B hepatitis, chronic Type B hepatitis, healthy carrier state and hepatocellular carcinoma (HCC) subgroups. Two of 65 (3.1%) anti-HD positive sera belonged to the acute Type B hepatitis group; one of 104 (0.9%), the chronic Type B hepatitis group and one of 246 (0.4%), the healthy carrier group. No antibody was detected in sera from 12 HBsAg positive HCC patients. All HBsAg negative patients were negative for anti-HD antibody. The results of this study indicate that despite a high prevalence of hepatitis B virus infection, positive serology for delta virus is uncommon in Sichuan Province, The People's Republic of China.