真核表达人呼吸道合胞病毒F蛋白的纯化方法

目的 真核表达人呼吸道合胞病毒(human respiratory syncytial virus,SV)融合蛋白(fusion protein,),并完成蛋白纯化及纯度测定.方法 根据编码F蛋白的基因序列设计引物,CR方法扩增出3'端带His标签的F基因序列,克隆入pGEM-T-easy载体,经核酸序列分析后,进一步克隆到pcDNA3.1( )真核表达载体,限制性内切酶鉴定,用脂质体Lipofectamine2000转染COS-7细胞,2 h后再用Westem blot检测目的蛋白的表达.Ni柱亲和层析纯化COS-7细胞表达的F蛋白,高效毛细管电泳分析纯化后蛋白纯度.结果 核酸序列分析证实获得带His标签的RSV F基因序列,没有发生无义突变.转染COS-7细胞后,利用Western blot方法检测到F蛋白的特异性条带,纯度达99%以上.结论 初步建立了真核表达RSV F蛋白的纯化方法,为进一步优化RSV F蛋白制备条件及单克隆抗体及诊断试剂等研究奠定了基础.     

激素治疗增加绝经后健康妇女尿失禁的发病率和严重程度

问题：在绝经后健康妇女中，激素治疗（hormone therapy，HT）对尿失禁（urinary incontinence，UI）的效果如何？     

上皮样血管瘤16例临床与病理分析

 目的:探讨上皮样血管瘤（EH）的临床及组织病理学特征。 方法:回顾性分析16例已确诊患者的临床及病理资料,并对相关文献进行综述。 结果:16例患者中女8例,男8例;平均年龄（45.44±12.52）岁;病程3个月~20年;皮损主要表现为红色至暗红色丘疹、结节,可伴瘙痒和糜烂,好发于头皮、耳部,其中发生在头部10例、耳部5例、外阴1例;皮损单发者5例,多发者11例。皮损组织病理学检查均具有典型的血管增生,管壁增厚,内皮细胞呈上皮样突向管腔,管周大量淋巴细胞及嗜酸性粒细胞浸润。结论：上皮样血管瘤少见,诊断需要临床与病理密切结合。加强对该病的认识,可避免误诊误治。     

Effect of exogenous surfactant on total respiratory system compliance

We measured total respiratory system compliance (Crs) before and after instilling 25 mg artificial surfactant in 1 ml saline down the endotracheal tube of preterm babies requiring resuscitation at birth, and compared results with data from 6 similar babies receiving saline only. Surfactant did not produce a significant improvement in Crs.     

Noonan's and DiGeorge syndromes with monosomy 22q11

A boy with the dysmorphic features of Noonan's syndrome and pulmonary valve stenosis who had evidence of hypoparathyroidism and abnormal T lymphocyte numbers in the neonatal period is reported. He had a normal karyotype but molecular analysis revealed a submicroscopic deletion within chromosome 22q11, the region deleted in DiGeorge syndrome. Thus this child has both Noonan's syndrome and DiGeorge syndrome; 22q11 is a candidate region for a gene defective in Noonan's syndrome.     

Clinical effectiveness and safety of citalopram in patients with depression after myocardial infarction

Citalopram (20 mg/day for 42 days) was given to 20 patients (mean age 54.4+/-2.5 years) with depression after myocardial infarction. This was associated with substantial antidepressive effect (50% and more lowering of the total score of the Beck depression questionnaire) in 89% of patients, reduction of number and severity of somatic complaints, and improvement of parameters of quality of life. Citalopram did not affect blood pressure and according to Holter ECG monitoring data produced no arrhythmogenic or proischemic effects. Overall tolerability of citalopram was good however 21% of patients experienced slight drowsiness, dizziness or sweating.     

Clinico-epidemiological program of the study of depression in cardiological practice in patients with arterial hypertension and ischemic heart disease (COORDINATA)

COORDINATA - first Russian multicenter prospective (3 year long) study having the aim to elucidate prevalence of symptoms of anxiety and depression among patients with arterial hypertension (AH) and ischemic heart disease (IHD) and their influence on cardiovascular (CV) prognosis. Results of baseline epidemiological part of the study are presented. Results of prospective phase will be published in 2008. MATERIAL AND METHODS: Symptoms of depression and anxiety were assessed by validated in Russia Hospital Anxiety and Depression Scale (HDS) in 5038 patients with AH and/or IHD aged 55 years and older. Prevalence of CV risk factors was also studied and their association with anxiety/depressive symptoms were evaluated in a framework of multivariate regression analysis. RESULTS: Clinically significant symptoms of anxiety (HADS score >or=11) took place in 33 and 38%, symptoms of depression - in 30 and 38% of patients with AH and IHD, respectively. Relationship of symptoms of anxiety and depression was established with a number of psychosocial and biological risk factors of CV diseases (D) specifically low levels of education and income, insufficient level of physical activity, high level of chronic psychoemotional stress, exposition to acute stresses of great power, lack of social support, social isolation, elevated blood pressure level. It was shown that CVD comorbid anxiety and depressive states might cause excessive use of health care resources by patients.