CT在诊断胸部结节病中的意义

结节病(sarcoidosis)是一种原因不明的疾病,全身多个器官均可受累,90%以上有肺的改变犤1犦,以病变处非干酪样上皮细胞肉芽肿形成为特征犤2犦。临床多无特异性症状,常规胸片为其基本诊断方法。随着螺旋CT、高分辨CT在临床中的     

单独肝尾状叶血管瘤切除术

肝尾状叶由于解剖位置特殊,位置深,难以显露,手术难度大,是肝脏外科领域手术操作的难点与研究热点.随着肝血流控制技术的发展、肝实质离断技术的提高,肝尾状叶肿瘤切除率明显提高[1].2006年4月至2008年10月,我科完成单独肝尾状叶血管瘤切除术9例,现将手术技巧与疗效报道如下.     

Picotamide inhibition of excess in vitro thromboxane B2 release by colorectal mucosa in inflammatory bowel disease.

BACKGROUND: Inflammatory bowel disease is associated with increased mucosal release of eicosanoids. Among these, thromboxane A2 has been proposed as a possible inflammatory mediator; its suppression may be a useful therapeutic option. METHODS: Using a tissue incubation technique, we compared release of immunoreactive thromboxane B2 by colonic biopsies from patients with ulcerative colitis, Crohn's disease and controls, and assessed the inhibitory effect of picotamide, a thromboxane synthesis inhibitor-receptor antagonist, which has been widely used in Italy for management of ischaemic heart and cerebrovascular disease. RESULTS: Increased amounts of thromboxane B2 were released from biopsies from patients with active ulcerative colitis (median 238 pg/20 min/mg wet weight (interquartile range 147- 325), n = 12) and active Crohn's disease (252 (174-450), 6) compared with those from patients with quiescent ulcerative colitis (95 (61- 140), 12) or Crohn's disease (105 (57-201), 13), or controls (136 (64- 206), 8). Incubation with picotamide at concentrations between 100 microM and 1 mM reduced thromboxane B2 release (IC50 890 microM). CONCLUSION: Since increased thromboxane A2 production may have pathogenetic importance, thromboxane synthesis inhibitor-receptor antagonists such as picotamide merit therapeutic trial in the management of inflammatory bowel disease.     

Follistatin and activin A production by the male reproductive tract

Follistatin is a binding protein for the activin and inhibin family of hormones, regulating their biological activity. In the male reproductive tract, the interaction of these factors is likely to be involved in the regulation of the proliferation of several cell types. We have investigated the presence of follistatin and activin A in seminal plasma using specific immunoassays and have localized follistatin and activin/inhibin subunits in the adult human testis, prostate and seminal vesicle to establish their likely sources. High concentrations of immunoreactive follistatin were present in seminal plasma in normal men (mean 97.9 ng/ml; 1.43 ng/ml in peripheral plasma) and were similar in men with oligo/azoospermia and following vasectomy. Follistatin immunoreactivity was localized to both Leydig and Sertoli cells of the testis, and to epithelial cells of the prostate gland and seminal vesicle, which are likely to be the predominant sources of the hormone in seminal plasma. Activin A was also present in seminal plasma in normal men but was undetectable following vasectomy, thus deriving from the testis. Consistent with this finding, the betaA-subunit was immunolocalized in Sertoli and Leydig cells but was not present in seminal vesicle or prostate gland. The functional significance of the high concentrations of follistatin secreted into seminal plasma by the prostate gland and/or seminal vesicle is uncertain, but they may regulate the biological activity of testis-derived activin A and inhibin B.      

上腔静脉综合征的外科治疗

目的报告５例上腔静脉综合征外科治疗经验及体会。方法２例行颈内静脉－大隐静脉转流术，３例行颈外静脉－大隐静脉转流术。结果无术后并发症及手术死亡。术后近期疗效满意５例，远期疗效满意２例。结论外科手术治疗上腔静脉综合征能明显改善患者的预后；但由于上腔静脉综合征病因、梗阻部位和范围不同，手术方法应有所选择。     

芜湖市社区高血压病人现况调查

目的　了解高血压病人的基本情况 ,为寻找社区人群高血压的防治对策提供依据。方法　应用单纯随机抽样调查某街道 5 0 1名≥ 30岁居民中的高血压病人 ,用SPSS统计软件进行分析。结果　高血压患者的知晓率为 80 .0 %,服药率为 6 8.7%,采取非药物治疗的 6 3.5 %,使血压能控制在正常范围的占 18.0 %。结论　知晓率、服药率、控制率比 1991年全国抽样调查的结果有明显提高 ,在社区广泛开展健康教育和健康促进 ,对社区高血压患者实施防治结合是很有必要的。     

停跳或不停跳心脏手术对血清 S-100B蛋白表达的影响

【目的】研究心脏手术围术期血清S-100B蛋白表达及其与停跳或不停跳心肺转流方式和时间的关系。【方法】体外循环心脏手术患者23例,测转流前、转流10min、转流末、转流后24h的血清S-100B蛋白表达水平。【结果】①血清S-100B蛋白质量浓度在体外循环前后动态变化:转流前(M)为0.27μg/L,转流10min后升至0.57μg/L(P<0.01),转流末达峰值1.80μg/L(P<0.01),转流后24h降为0.22μg/L(P>0.05)。转流末的血清S-100B蛋白质量浓度与转流时间呈正相关(r=0.488,P<0.05)。②停跳组(n=6)转流前、转流10min、转流末、转流后24h平均血清S-100B蛋白质量浓度分别为(0.17±0.09)μg/L、(0.48±0.13)μg/L、(1.65±0.52)μg/L和(0.19±0.04)μg/L,不停跳组(n=6)分别为(0.26±0.14)μg/L、(0.71±0.41)μg/L、(1.59±0.84)μg/L和(0.23±0.11)μg/L,两组差别无统计学意义(P>0.05)。【结论】体外循环可导致血清S-100B蛋白表达增高,其表达水平与心肺转流时间呈正相关,但与停跳或不停跳转流方式无关。     

四君子汤改善抗生素脱污染小鼠肠道菌群失调的研究

目的：研究中药四君子汤对肠道菌群失调小鼠的调节作用。方法：小鼠经盐酸林可霉素灌肠造成菌群失调模型。将小鼠分自然恢复组。丽珠肠乐组，四君子汤组，治疗后，进行组织病理学和肠道菌群检测。结果：四君子汤组中肠道菌群最大幅度增加，与自然恢复组相比差异显。肠道粘膜损伤修复比自然恢复组好。结论：四君子汤能够促进肠粘膜损伤修复。调节肠道菌群失调。是一种理想的微生态调节剂。     

费氏艾美尔球虫（E.ferrisi）某些生物学特性的研究

采用从自然感染球虫的小鼠粪便中分离的单卵囊接种小鼠获得成功，观察了此种球虫的卵囊形态，孢子化时间，潜隐期和寄生部位等，确定此球虫为费氏艾美尔球虫。为进行费氏艾美尔球虫病的流行病学调查和防治提供了依据。