冠心病患者血浆内皮素和降钙素基因相关肽检测的临床意义

目的　探讨内皮素 (ET)和降钙素基因相关肽 (CGRP)在冠心病患者中的作用。方法　应用放射免疫法对 36例冠心病进行了血浆ET、CGRP水平测定 ,并与 35名正常健康人作对照。结果　冠心病患者血浆ET水平高于正常人组 (P <0 .0 1)、CGRP水平低于正常人组 (P <0 .0 1)。结论　ET和CGRP水平与冠心病的发生和发展有密切的关系     

石胆草中苯乙醇苷的分离与结构鉴定石胆草中苯乙醇苷的分离与结构鉴定

目的 研究石胆草(Corallodiscus flabellata)的化学成分。方法 利用大孔吸附树脂、Sephadex LH-20、硅胶柱色谱进行分离纯化,根据化合物的理化性质和光谱数据鉴定结构。结果分离并鉴定了3个新的苯乙醇苷类化合物,经光谱鉴定化合物的结构为:3,4-二羟基苯乙醇-8-O-［β-D-芹糖基(1→3)］-β-D-葡糖苷(I),3,4-二羟基苯乙醇-8-O-［4-O-咖啡酰基-β-D-芹糖基(1→3)-β-D-葡糖基(1→6)］-β-D-葡糖苷(II),3,4-二羟基苯乙醇-8-O-［β-D-芹糖基(1→3)-β-D-葡糖基(1→6)］-β-D-葡糖苷(III)。结论I,II和III均为新化合物。     

石胆草中两个新的苯乙醇苷类成分石胆草中两个新的苯乙醇苷类成分

目的 研究石胆草(Corallodiscus flabellata)的化学成分。方法 利用大孔吸附树脂、Sephadex LH-20、硅胶柱色谱进行分离纯化,根据化合物的理化性质和光谱数据鉴定结构。结果 分离并鉴定了5个化合物,分别为3,4-二羟基苯乙醇-8-O-［β-D-芹糖基(1→2)］-β-D-葡糖苷(I),3,4-二羟基苯乙醇-8-O-［(5-O-香草酰基)-β-D-芹糖基(1→2)］-β-D-葡糖苷(II),香草酸(III),丁香酸(IV),阿魏酸(V)。结论 I和II为新化合物,III,IV和V均为首次从本植物中分离得到。     

含羟基喜树碱联合方案治疗中晚期非小细胞肺癌

目的 :观察含羟基喜树碱 (HCPT)联合方案治疗中晚期非小细胞肺癌 (NSCLC)患者的客观疗效及毒副作用。方法 :4 6例中晚期非小细胞肺癌患者为治疗组 ,应用含羟基喜树碱方案化疗 ,其中 2 5例肺腺癌患者接受HFAP方案 ,2 1例肺鳞癌患者接受HCAP方案 ,4周为一周期 ,2周期为一疗程 ;以同期住院的未用HCPT联合化疗的同类患者 4 2例作为对照组 ,其剂量、周期、疗程与治疗组相同 ,但不用HCPT。结果 :治疗组 4 3例患者完成一疗程治疗 ,肺腺癌有效率为 5 6 % ,CR 2例 ,PR 12例 ;肺鳞癌有效率为 5 5 5 % ,CR为 0 ,PR 10例 ,总有效率 (CR +PR)为 5 5 8% ;对照组 4 2例均完成一疗程治疗 ,肺腺癌有效率为37 5 % ,CR 1例 ,PR 9例 ;肺鳞癌有效率为 33 3% ,PR 6例 ,有效率 35 7% ;两组间差异显著 (P <0 0 5 )。治疗组和对照组的毒副反应主要表现为食欲不振、脱发、恶心呕吐和白细胞及血小板减少 ,两组毒副反应发生率无显著性差异 (P >0 0 5 )。结论 :羟基喜树碱联合化疗治疗中晚期非小细胞肺癌疗效确切 ,副作用可耐受 ,该药是治疗非小细胞肺癌较为有效的药物 ,值得进一步在临床中观察和研究。     

What's new with tumor markers for colorectal cancer?

BACKGROUND/AIMS: Many tumor markers have been utilized in the follow-up care of colorectal cancer patients. No marker, however, has proven reliably accurate in detecting recurrent disease. METHODS: The strengths and weaknesses of currently available tumor markers are reviewed, with attention to related cost and efficacy. RESULTS: Tumor antigens, enzymes, and genetic markers have been used as tumor markers. CEA and CA 19.9 are the most widely utilized; however, genetic markers are the most promising for the future. CONCLUSIONS: Currently available markers have significant limitations. Development of genetic markers may greatly enhance our ability to predict prognosis and the need for adjuvant therapy. Marker-guided therapy may play an increasing role in this disease.     

重组人纽表位肽12生物学活性测定方法的研究

目的：建立适用于重组人纽表位肽12体外质量控制的生物学活性测定方法，用于该制品的生物学活性评价。方法：采用小鼠，比较不同品系、给药浓度、给药周期等条件下应用ELISA方法检测出的小鼠相应抗体水平，确定最佳实验条件，以建立相应的体外活性测定方法。结果：FVB／N转neu基因小鼠(TgN MMTVneu202 Mul，Jackson Lab．，USA)对重组人纽表位肽12的反应存在量——效关系，并确定了最佳测定条件和给药剂量，用抗体阳转百分率作为评价指标，样品测定重复性较好，CV％值为6．7％(H=4)，结果可靠。结论：已建立的FVB／N转neu基因小鼠测定重组人纽表位肽12生物学活性的方法可用于重组人纽表位肽12生物学活性的常规评价。     

放射免疫导向手术的研究进展

介绍放射免疫导向手术的基本原理及发展情况，探讨其在胃癌、大肠癌中的应用价值。放射免疫导向手术能有效地检出亚临床病灶，提高胃癌、大肠癌的治愈率。     

EXPRESSION OF p16,CYCLIN D1 AND RB PROTEIN IN GASTRIC CARCINOMA AND PREMALIGNANT LESIONS

Gastric carcinoma is one of the most serious diseases in mankind. Its pathogenesis has not been understood very clearly. Recent researches suggested that oncogenes (such as cyclin D1), antioncogenes (ie., p16, Rb) and cell cycle played an important role in the pathogenesis of gastric carcinoma. But there are few reports about the relationship between these genes in gastric carcinoma and gastric premalignant lesions. In this study, we will discuss these problems. MATERIALS AND METHO…     

Occupational and environmental risk factors for idiopathic pulmonary fibrosis: a multicenter case-control study. Collaborating Centers

Occupational exposures were investigated in a multicenter case-control study of clinically and histologically diagnosed idiopathic pulmonary fibrosis (IPF), a chronic diffuse interstitial lung disease of unknown etiology. Results are based on 248 cases, aged 20-75 years, diagnosed at 16 referral centers between January 1989 and July 1993. There were 491 controls ascertained by random digit dialing and matched to cases on sex, age, and geographic region. Data were collected using a standard telephone questionnaire. Occupational factors were based on a detailed history of jobs lasting 6 months or more and job activity, hobby, and specific substance checklists. Several occupational factors, adjusted for age and smoking in conditional multivariate logistic regression analyses, were significantly associated with IPF: farming (odds ratio (OR) = 1.6, 95% confidence interval (CI): 1.0, 2.5); livestock (OR = 2.7, 95% CI: 1.3, 5.5); hairdressing (OR = 4.4, 95% CI: 1.2, 16.3); metal dust (OR = 2.0, 95% CI: 1.0, 4.0); raising birds (OR = 4.7, 95% CI: 1.6, 14.1); stone cutting/polishing (OR = 3.9, 95% CI: 1.2, 12.7); and vegetable dust/animal dust (OR = 4.7, 95% CI: 2.1, 10.4). Interaction was detected between smoking and exposure to livestock (p = 0.06) and farming (p = 0.08). Results confirm previous studies showing increased risk associated with dusty environments.     

微管心包腔闭式引流术治疗恶性心包积液的临床观察

目的评价微管心包腔闭式引流治疗恶性心包积液的疗效。方法将42例恶性心包积液患者随机分为微管心包腔闭式引流术引净后注入顺铂(DDP)的治疗组21例,常规心包穿刺抽液后注入DDP的对照组21例。结果治疗组有效率(CR+PR)为90·4%(19/21),中位生存期为199d;对照组有效率(CR+PR)为47·6%(10/21),中位生存期为106d。结论微管心包腔闭式引流术治疗恶性心包积液的疗效佳,且安全、方便、易行,可作为治疗恶性心包积液的首选方法。