子宫内膜异位症患者血清及腹腔液6-异前列腺素F1α的表达及意义

目的探讨子宫内膜异位症（内异症）患者血清及腹腔液中6-异前列腺素F1α（6-k-PGF1α）的表达及其在内异症发病中的作用。方法选择2010年6月至2012年1月在我院妇科手术治疗并经病理证实为内异症的42例患者并进行分期,其中早期（Ⅰ期、Ⅱ期）20例,晚期（Ⅲ期、Ⅳ期）22例;并选择同期无月经改变、病理证实为正常子宫内膜的子宫肌瘤患者20例。所有患者均在术前采集上肢静脉血,术中采集腹腔液。采用酶联免疫吸附（ELISA）方法测定血液和腹腔液中6-k-PGF1α的水平,并对内异症患者血清和腹腔液中6-k-PGF1α的表达进行Pearson相关性分析。结果①内异症早期组、晚期组血清、腹腔液中6-k-PGF1α水平均比对照组明显增高（均P〈0.05）;②内异症晚期组组血清、腹腔液中6-k-PGF1α水平均比内异症早期组明显增高（P〈0.05）;③内异症组血清与腹腔液6-k-PGF1α水平之间呈明显正相关（r=0.580,P=0.008）。结论内异症患者血清及腹腔液中6-k-PGF1α水平明显增高,后者可作为评判内异症严重程度的参考指标。     

前置胎盘剖宫产术合并难治性产后出血的处理

前置胎盘在剖宫产术中出现的难治性产后出血病情凶险,进展较快,其严重地威胁着孕产妇的生命安全.在术中采用尽早缝合子宫切口法、局部多点催产素注射法、低位B-Lynch缝合术、宫内球囊压迫术、髂动脉球囊导管置入术、改良宫腔填塞联合卡前列素氨丁三醇等方法,止血效果较好,避免了子宫切除.该文就前置胎盘剖宫产术合并难治性产后出血的治疗作以综述.     

鲍曼不动杆菌临床分离率与耐药率的分析

目的 了解2005～2009年鲍曼不动杆菌在临床标本中的分离情况及其耐药趋势,为临床感染的预防和治疗提供参考资料.方法 回顾分析2005～2009年间所有标本中鲍曼不动杆菌的分离率,菌株在标本与病区的分布及对15种抗菌药物的耐药率.结果 鲍曼不动杆菌的分离率有逐年升高的趋势,从2005年的0.39增至2009年的1.39;其在呼吸道标本的分离率最高（61.69%）,其次是尿液（11.3%） ;病区分布以重症监护室（ICU）最高（44.48%）;鲍曼不动杆菌对15种抗菌药物的耐药率在2005年仅有五种〉50%,而到2009年仅头孢哌酮/舒巴坦的耐药率〈50%,其他14种耐药率均〉50%;其耐药率均呈递增的趋势,耐药性增幅列前3位的分别是：环丙沙星38.1%～76.3%、妥布霉素29.4%～78.3%、庆大霉素39.2%～80.1%.结论 鲍曼不动杆菌的临床分离率在逐年增加,其对多数抗菌药物有较高的耐药性,且耐药率呈逐年上升趋势,尤其是对亚胺培南耐药率的快速增长,应引起临床抗感染治疗的高度重视.     

Increased expression of MAP2 inhibits melanoma cell proliferation,invasion and tumor growth in vitro and in vivo

Please cite this paper as: Increased expression of MAP2 inhibits melanoma cell proliferation, invasion and tumor growth in vitro and in vivo. Experimental Dermatology 2010; 19 : 958–964. Abstract: Malignant melanoma (MM) is characterized by aggressive metastasis and high mortality rate. Microtubule‐associated proteins 2 (MAP2) is expressed abundantly in majority of melanocytic nevi and primary melanomas, but absent in metastatic melanomas. To determine whether MAP2 correlates with tumor progression of MM, we investigated the effects of MAP2 inhibition on the biological behaviour of metastatic melanoma in vitro and in vivo. Our results demonstrated that adenovirus‐mediated MAP2 induced apoptotic cell death and cell cycle arrest in metastatic human and mouse melanoma cell lines in vitro, and substantially inhibited the growth of melanomas in nude mice in vivo. In addition, intracellular expression of MAP2 was found to induce the morphologic alteration, suppress the migration and invasion and affect the assembly, stabilization and bundling of microtubules in melanoma cells. This is the first study that MAP2 expression significantly inhibits the growth of MM in vivo. Our results suggest that MAP2 may serve as a promising molecular target for therapy and chemoprevention of MM in humans.     

Tid1 functions as a tumour suppressor in head and neck squamous cell carcinoma

Human tumourous imaginal disc (Tid1), a human homologue of the Drosophila tumour suppressor protein Tid56, is involved in multiple intracellular signalling pathways such as apoptosis, cell proliferation, and cell survival. Here, we investigated the anti‐tumourigenic activity of Tid1 in head and neck squamous cell carcinoma (HNSCC) in vitro and in vivo. Firstly, the clinical association between Tid1 expression and progression of HNSCC was explored. It was found that expression of Tid1 was negatively associated with tumour status, recurrence, and survival prognosis using immunohistochemical analysis of primary HNSCC patient tumour tissue. Secondly, ectopic expression of Tid1 in HNSCC cells was shown to significantly inhibit cell proliferation, migration, invasion, anchorage‐independent growth, and xenotransplantation tumourigenicity. Thirdly, we showed that overexpression of Tid1 attenuated EGFR activity and blocked the activation of AKT in HNSCC cells, which are known to be involved in the regulation of survival in HNSCC cells. On the other hand, ectopic expression of constitutively active AKT greatly reduced apoptosis induced by Tid1 overexpression. Together, these findings suggest that Tid1 functions as a tumour suppressor in HNSCC tumourigenesis. Copyright © 2009 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.     

NIDDM患者单个核细胞胰岛素受体放射分析及其临床意义

采用乳过氧化物酶法制备A_(14)-~(125)I胰岛素,泛影葡胺-聚蔗糖分层液密度梯度离心法分离外周血单个核细胞,优选受体结合试验条件,建立了单个核细胞胰岛素受体放射分析法。测定了54例NIDDM患者、29例单纯肥胖症患者和27例正常人的单个核细胞胰岛素受体结合率(MIB)。结果表明NIDDM组的MIB显著低于正常组,空腹血浆胰岛素(FPI)高于正常组;NIDDM肥胖型组中MIB与FPI呈负相关。证实胰岛素受体缺陷是NIDDM产生胰岛素抵抗性的重要原因之一。     

保元汤加减对实验大鼠肺孢子虫作用的电镜观察

目的　探索中医药治疗卡氏肺孢子虫肺炎的途径。　方法　应用中药保元汤加减煎剂给实验大鼠灌胃 ,通过透射电镜观察其对实验大鼠肺内肺孢子虫的作用。　结果　实验组较对照组大鼠肺内肺孢子虫有明显改变。其中肺孢子虫胞浆内大量空泡形成 ;包囊壁明显破坏 ;虫体有溶解现象。　结论　保元汤加减煎剂 ,对实验大鼠体内的卡氏肺孢子虫具有抑制和杀灭作用。