c-fos基因在乐果中毒后肌无力大鼠肌组织中的表达

采用ＲＴ－ＰＣＲ、ＷｅｓｔｅｒｎＢｌｏｔ技术,检测了有机磷农药乐果对大鼠骨骼肌细胞中即刻早期反应基因ｃ－ｆｏｓ表达的影响。结果表明,在乐果作用下,骨骼肌细胞ｃ－ｆｏｓ基因表达在ｍＲＮＡ以及蛋白质水平均明显增高。然而骨骼肌细胞ｃ－ｆｏｓ的表达是否与毒物刺激有关,其在农药中毒机制上的生物学意义有待深入研究。     

针对居民的医疗保健要求探索全科医疗的开展

通过对宜川街道赵园二委１７００余户居民进行家庭健康问卷调查,结果大约有３０％居民愿意接受全科医疗服务模式,４０％居民需要上门服务,当遇到常见病时首选一级医院医生为对象占５０％,７０％居民认为上门服务应该是有偿的。为此,笔者认为基层医院应在社区卫生服务中大力地探索,只要有市场就应去占领,而且是一级医院赖以生存的社区,应以全科医疗服务模式去改变医患之间关系,把预防保健、医疗、康复、健康教育融为一体,使     

老年哮喘发作期血浆内皮素含量的研究

目的 探讨血浆内皮素在老年哮喘发作期的作用。方法用放射免疫法测定健康老年人35例,非老年人30例和老年哮喘发作期37例血浆内皮素含量。结果老年哮喘发作期内皮素含量为(107、26±831)g／ml)明显高于恢复期(52、13±6.74pg／ml),两组差异性非常显(P<0.01);而恢复期虽然明显降低,但仍高于健康老年组(38．24±5．16pg／ml)与非老年组(31.16±4．64pg／ml)差异性也非常显(P<0．01);而健康老年与非老年组无差异性。结论老年哮喘发作期内皮素含量明显增高,说明内皮素与哮喘发作有关,认为内皮素升高可能是老年哮喘发作的一种内源性致病因素,测定其含量为老年哮喘发作的防治提供了新途径。     

卡铂栓剂溶出度实验方法研究

目的：建立测定卡铂栓溶出度的实验方法，提供药品评价和质控的依据。方法：溶出度的测定采用比色法，水平滚筒溶出装置，蒸馏水(pH5～7)为溶出介质。结果：卡铂栓剂溶出度5小时为65％以上，6小时为80％以上。结论：此方法准确、快速、简便。为控制卡铂栓的质量，有必要进行溶出度测定。     

HPLC法测定VE霜的含量

目的　用HPLC法测定VE霜的含量。方法　将VE霜制成供试品溶液 ,经C1 8色谱柱 ,以甲醇为流动相 ,用紫外检测器在2 85nm处检测。结果　VE可与霜剂基质中的成分很好地分离 ,VE的线性范围为 0 .2～ 1.0mg ml,平均回收率为 98.82 % ,RSD为 1.92 %。结论　所建立的方法准确、可靠 ,适用于VE霜的含量测定。     

国产枸橼酸西地那非片治疗男性勃起功能障碍疗效和安全性的临床研究

目的评价口服国产枸橼酸西地那非片治疗男性勃起功能障碍的临床有效性和安全性。方法采用多中心、随机、双盲、安慰剂、平行对照的方法，对240例患进行为期8周的临床观察，评价标准包括：国际勃起功能指数(IIEF)、记事本、总评题。结果西地那非组皿亚评分明显高于安慰剂组(P＜0．01)，记事本、总评题结果西地那非组亦明显优于安慰剂组，无不良反应中断研究。结论国产枸橼酸西地那非片是治疗男性勃起功能障碍的有效和安全的药物。     

力尔凡对直肠癌MMP-7表达的影响及其临床意义

目的:评价力尔凡对直肠癌MMP蛳7表达的影响及临床意义。方法:将32例低位直肠癌患者随机分为力尔凡治疗组与对照组,治疗组在术前瘤体内注射力尔凡后接受手术治疗,对照组仅接受手术治疗,并通过免疫组化法分别检测两组MMP蛳7的表达。结果:MMP蛳7在对照组与力尔凡治疗组的表达明显高于对照组,分别为85.7 %,68.7 %,有显著性差异;对照组中Dukes B期和C期MMP蛳7的表达有显著性差异。结论:术前瘤体内注射力尔凡,可明显降低直肠癌MMP蛳7的表达,在Dukes C期比B期更明显。     

Clinical Features and Mid-Term and Long-Term Outcomes of Surgical Treatment of 8 Patients with Primary Ventricular Tumors

OBJECTIVE To summarize the clinical features and surgical treatment of primary ventricular tumors. METHODS Eight patients with primary ventricular tumor, aged 3 to 52 years, underwent surgical treatment. There were 6 males and 2 females. The pathological diagnoses were as follows: multiple left ventricular myxomas in 2 cases; left ventricular rhabclomyoma, fibroma and malignant neurolemmoma in 1 case for each; right ventricular myxoma and malignant neurolemmoma in 1 case for each; intraseptal fibroma in 1 case. The operations were performed through median sternotomy with moderate hypothermic cardiopulmonary bypass in 7 cases; via left anterolateral thoracotomy without extracorporeal circulation in 1 case. Tumors were totally removed in 7 cases and subtotally resectecl in 1 case. RESULTS Cardiac arrest after anaesthetization occurred in 1 case with postoperative coma for 10 days. One case died of massive gastro-intestinal hemorrhage postoperatively. Seven cases survived, During a follow-up period of 1 to 21 years, there was no recurrence or metastasis in the 6 cases who received complete tumor resection including 2 cases with malignant tumor. One case of partial tumor removal had a mild heart murmur without tumor progression. All patients were asymptomatic with cardiac functiongrade I. CONCLUSION Primary ventricular tumors showed diversity in their histological characteristics. The mid- and long-term outcomes of surgical treatment for primary ventricular tumors appear to be satisfactory.     

Clinical analysis of 276 cases of non-palpable TO breast cancer

Objective Discussion of diagnosis, treatment and prognosis of non-palpable TO breast cancer. Methods Between 1978 and 1997, 9,980 female patients with operable breast cancer were treated surgically, of which 276 were determined to have TO breast cancer. Most TO breast cancers could be detected promptly with careful examination of presenting symptoms, such as nipple discharge, local thickening of the breast, nipple erosion, nipple retraction and postmenopausal mastalgia, while 12 cases were detected by routine mammography of the contralateral breast. Results All patients were treated surgically and their tissue subjected to histopathological examination. Most cases (73.0%) were noninvasive or early invasive carcinoma. Axillary lymph nodes metastases were found in 7.69% of 234 mastectomy cases. Conclusion The survival rate was significantly increased if the tumor was in an early stage. The 5-, 10-, 15-years survival rates were 98.1%, 94.6% and 90.3%, respectively.     

浅谈中药有效成分的分离和纯化

目的 研究中药的分离和纯化工艺,提高有效成分含量和稳定性。方法 采用乙醇沉淀法,大孔树脂法,过滤和离心法等进行分离纯化。结果 每一种方法都各有优点和适用范围。结论 根据不同的样品选取不同的方法才能达到中药分离和纯化的目的。