精神分裂症患者相关酶联合测定的意义

目的 联合测定精神分裂症患者血清肌酸激酶(CK)、天冬氨酸氨基转移酶(AST)、丙氨酸氨基转移酶(ALT)、AST/ALT,并探讨其临床意义.方法 233例初诊入院的男性精神分裂患者于入院次日测定CK、AST、ALT等酶活力,比较患者在3组CK水平分布(＜200、200～1 000、＞1 000 U/L)的AST、ALT水平.在精神分裂症住院患者中选择肝酶AST、ALT组合异常(二者任一或同时＞40 U/L)者196例进行CK活力测定,比较患者在3组CK水平分布(＜200、200～1 000、＞1 000 U/L)的AST/ALT.结果 精神分裂患者CK活力升高者伴有AST、ALT不同程度的升高,3组CK水平的AST、ALT水平差异有统计学意义(P＜0.001).精神分裂症住院患者肝酶AST、ALT组合异常者在3组CK水平的AST/ALT差异有统计学意义(P＜0.001),AST/ALT与CK活力呈正相关(r=0.621,P＜0.001).结论 联合测定精神分裂症患者CK、AST、ALT、AST/ALT对于患者肝病的鉴别诊断具有重要价值.     

Perianal Paget’s disease: case report and review of the literature

A peri-anal skin lesion, often eczema-like and with symptoms of pruritus, that does not resolve after classical local therapy should be biopsied. We present a case of peri-anal extramammary Paget’s disease (EMDP) and associated anal adenocarcinoma. Reviewing the literature, more than 30% of patients with EMDP present a second primary tumour in their past, present or future history. In Europe, the risk of developing a new primary tumour in patients with this condition is increased compared with the standard population. In cases of peri-anal Paget’s disease (PPD), specific histochemical markers allow us to differentiate between a primary and a secondary form, the secondary one is strongly associated with colorectal and anal tumours. We provide information about the most commonly suggested therapy for PPD with or without associated malignancy and about the recommended follow-up.     

Targeting chronic lymphocytic leukemia using CIGB-300, a clinical-stage CK2-specifc cell-permeable peptide inhibitor

Chronic lymphocytic leukemia (CLL) remains an incurable malignancy, urging for the identifcation of new molecular targets for therapeutic intervention. CLL cells rely on overexpression and hyperactivation of the ubiquitous serine/threonine protein kinase CK2 for their viability in vitro. CIGB-300 is a cell-permeable selective CK2 inhibitor peptide undergoing clinical trials for several cancers. Here, we show that CIGB-300 promotes activation of the tumor suppressor PTEN and abrogates PI3K-mediated downstream signaling in CLL cells. In accordance, CIGB-300 decreases the viability and proliferation of CLL cell lines, promotes apoptosis of primary leukemia cells and displays antitumor efcacy in a xenograft mouse model of human CLL. Our studies provide pre-clinical support for the testing and possible inclusion of CK2 inhibitors in the clinical arsenal against CLL.     

Is the Change of Late Potential Over Time Related to Enzyme Levels?Ichemic Burden in Acute Myocardial Infarction

Background: The ventricular late potential (VLP) detected using the technique of signal average electrocardiography (SAECG) interacts with several factors, primarily time. Method: In this study, we examined the interaction, over time, of VLP with the initial ischemic burden and enzyme levels in acute myocardial infarction. Patients diagnosed as having acute myocardial infarction were included in the study. On the first day, the patients underwent enzyme analysis and electrocardiography (ECG) follow‐up every 6 hours. A 24‐hour ambulatory ECG was performed on the seventh day in order to determine the ischemic burden. SAECG findings (TQRS, RMS, LAS were obtained on the seventh day, in the first and third months. The study was continued with the patients who did not require angioplasty as decided with angiographic evaluation in the first month. Results: The study included 30 patients with acute myocardial infarction (mean age 51 ± 12, 28 males and 2 females). The initial mean CK‐MB levels and the mean ischemic burden were 98 ± 31 U/L and 44 ± 96 minutes. The TQRS (ms), LAS (ms), and RMS (μV) values (mean ± SD) obtained at day 7, month 1, and month 3 are 97 ± 12, 96 ± 9, 103 ± 11, P = 0.01; 31 ± 10, 31 ± 11, 32 ± 10, P = 0.46; 43 ± 28, 41 ± 26, 33 ± 25, P = 0.01, respectively. We observed that the TQRS and RMS values changed significantly with time, but these levels of significance disappeared when adjusted for the initial ischemic burden and CK‐MB levels (P = 0.06; P = 0.53). The VLP frequency was 33% at day 7 and 23% at month 3. Unlike the CK‐MB level, the initial ischemic burden was significantly different between the patients with and without VLP at month 3 (150.85 ± 149.28, 12.34 ± 26.48, P = 0.001). When tested together with age and gender, it was found that the high initial ischemic burden increased the possibility of VLP (OR: 24, Cl: 2.09–279.52, P = 0.01) at month 3. Conclusion: SAECG findings in patients with myocardial infarction changed with time; however, this change occurred depending on the initial ischemic burden and CK‐MB levels. Of these, only the initial ischemic burden, especially in high levels, was a determinant for the presence of VLP in the late period of myocardial infarction. A.N.E. 2002;7(3):242–246     

三阴性乳腺癌中CK5/6和PTEN的表达及其临床病理意义

[摘要]　目的　探讨三阴性乳腺癌组织中CK5/6和PTEN的表达及其临床病理意义。　方法　　通过免疫组化方法检测68例三阴性乳腺癌组织和22例正常乳腺组织CK5/6和PTEN的表达,分析两者的表达水平与临床病理特征及预后的关系。　结果　CK5/6在三阴性乳腺癌组织阳性率为52.9%（36/68）,明显高于正常乳腺组织9.1%（2/22）（P<0.05）。PTEN在三阴性乳腺癌组织阳性率为55.9%（38/68）,明显低于正常乳腺组织90.9%（20/22）（P<0.05）。CK5/6和PTEN表达在肿瘤直径<5 cm和≥5 cm间,淋巴结转移数目<5个和≥5个间及是否远处转移间比较,差异均有显著性意义（P<0.05）。三阴性乳腺癌CK5/6阳性组及PTEN阴性组患者的生存时间显著短于CK5/6阴性组及PTEN阳性组（P<0.05）。　结论　　三阴性乳腺癌CK5/6表达和PTEN表达缺失与肿瘤大小、淋巴结转移数目及远处转移有关,CK5/6表达和PTEN表达缺失提示患者预后不良。     

蛋白激酶CK2α与食管癌发生发展及临床病理因素的相关性研究

目的 探讨蛋白激酶CK2α在食管癌发生发展中的作用及其与食管癌的临床分期、病理类型之间的关系.方法 采用免疫组织化学法检测该院收治的120例食管癌患者癌组织及癌旁组织中蛋白激酶CK2α蛋白的表达水平,采用实时定量聚合酶链反应(qRT-PCR)和Western blot技术对其中的19例患者的术后标本的蛋白和mRNA进行检测.比较癌组织和癌旁组织中的蛋白激酶CK2α蛋白和mRNA表达差异.结果 食管癌组织中的CK2α中阳性与强阳性表达率分别高于癌旁组织(P＜0.05).CK2α阳性表达情况在不同T分期、淋巴结转移间差异无统计学意义(P＞0.05),CK2α阳性表达分布在不同临床TNM分期间差异有统计学意义(P＞0.05).CK2α蛋白、CK2αmRNA在食管癌组织的表达均显著的高于癌旁组织(P＜0.05).结论 蛋白激酶CK2α与食管癌的发展有着一定的关系,可以作为临床上对食管癌病变程度的一种分子判定标准.     

Cholangiocyte endothelin 1 and transforming growth factor beta1 production in rat experimental hepatopulmonary syndrome

BACKGROUND & AIMS: Hepatic production and release of endothelin 1 plays a central role in experimental hepatopulmonary syndrome after common bile duct ligation by stimulating pulmonary endothelial nitric oxide production. In thioacetamide-induced nonbiliary cirrhosis, hepatic endothelin 1 production and release do not occur, and hepatopulmonary syndrome does not develop. However, the source and regulation of hepatic endothelin 1 after common bile duct ligation are not fully characterized. We evaluated the sources of hepatic endothelin 1 production after common bile duct ligation in relation to thioacetamide cirrhosis and assessed whether transforming growth factor beta1 regulates endothelin 1 production. METHODS: Hepatopulmonary syndrome and hepatic and plasma endothelin 1 levels were evaluated after common bile duct ligation or thioacetamide administration. Cellular sources of endothelin 1 were assessed by immunohistochemistry and laser capture microdissection of cholangiocytes. Transforming growth factor beta1 expression and signaling were assessed by using immunohistochemistry and Western blotting and by evaluating normal rat cholangiocytes. RESULTS: Hepatic and plasma endothelin 1 levels increased and hepatopulmonary syndrome developed only after common bile duct ligation. Hepatic endothelin 1 and transforming growth factor beta1 levels increased over a similar time frame, and cholangiocytes were a major source of each peptide. Transforming growth factor beta1 signaling in cholangiocytes in vivo was evident by increased phosphorylation and nuclear localization of Smad2, and hepatic endothelin 1 levels correlated directly with liver transforming growth factor beta1 and phosphorylated Smad2 levels. Transforming growth factor beta1 also stimulated endothelin 1 promoter activity, expression, and production in normal rat cholangiocytes. CONCLUSIONS: Cholangiocytes are a major source of hepatic endothelin 1 production during the development of hepatopulmonary syndrome after common bile duct ligation, but not in thioacetamide-induced cirrhosis. Transforming growth factor beta1 stimulates cholangiocyte endothelin 1 expression and production. Cholangiocyte-derived endothelin 1 may be an important endocrine mediator of experimental hepatopulmonary syndrome.