运动、大豆多肽与肠道免疫

大豆多肽作为生物活性肽的一种,具有很高的营养价值,补充大豆多肽对提高运动员机体的免疫力具有显著的效果;是否对大负荷训练后肠道免疫抑制具有调节作用,将成为今后研究的热点。     

同步辐射对直肠癌组织微量元素测定的意义探讨

采用同步辐射荧光分析光谱法（ＳＲＸＦＳ）对９例直肠癌及癌旁移行粘膜和正常粘膜中微量元素的含量进行分析，结果显示，癌组织中Ｃｕ、Ｚｎ、Ｍｎ三种微量元素相对含量分别为３８１９９．１６、１５５５７．０４和２０９．８６，显著低于正常粘膜组织（Ｐ＜０．０５，或Ｐ＜０．００１）；而宏量元素Ｃｌ含量为３４３８．１６，显著高于正常粘膜（Ｐ＜０．０５）。癌旁移行粘膜中Ｃｕ、Ｚｎ、Ｍｎ、Ｃｌ、Ｔｉ、Ｓｅ元素含量介于癌组织和正常粘膜之间，作者认为，微量元素Ｃｕ、Ｚｎ、Ｍｎ可能是直肠癌的相关性元素，癌旁移行粘膜多种元素含量变化趋势，提示癌旁移行粘膜可能是一类潜在性交界性瘤变。     

Circulating Biomarkers and their Possible Role in Pathogenesis of Chronic Hepatitis B and C Viral Infections

The present study evaluated the plausible role of circulating biomarkers in immune pathogenesis of chronic hepatitis considered a priority in clinical hepatology. Total viral load of chronic hepatitis B virus (HBV) and hepatitis C virus (HCV) patients was quantified and correlation studies were performed with circulating levels of Th1/Th2 cytokines; C reactive protein and circulating nucleosomes; glutathione reductase (GR) and superoxide dismutase. To our knowledge, the study is first among its kind that validates strong positive correlation of viral load with IL-4, IL-6, GR in HBV and IL-6, IL-10, GR in HCV infections. Although, multi-centric studies including large cohorts are required for translating our findings to clinical practice, however, role of these biomarkers with potential diagnostic or prognostic significance might be helpful in clinical assessment of high-risk individuals, thereby, designing interventional strategies, towards development of personalized medicare. The results of our study also offer valuable insights of immune signaling mediators engaged in development of hepatocellular carcinoma.     

马雌酚生物活性及其相关产出菌的研究现状

马雌酚是大豆异黄酮的代谢终产物之一,在动物及人体内发挥很强的生物活性。动物或人的个体间利用马雌酚的能力存在很大差异,主要是由于不同个体肠道内菌群存在着差异。本文综述了马雌酚的主要生物活性及人体和动物肠道中存在的与马雌酚产生有关的细菌的研究进展。     

Evaluation of Luteolin in the Prevention of N-nitrosodiethylamine-induced Hepatocellular Carcinoma Using Animal Model System

Hepatocellular carcinoma (HCC) is one of the commonest tumors worldwide. The treatment of HCC is vital for disease diagnosis and prognosis, as the liver is the most important organ controlling metabolic functions. Now-a-days, western folklore medicines are largely dependent on the phyto compounds which are highly effective in therapy and with low side effects. Luteolin is a flavonoid (3,4,5,7-Tetrahydro flavones) possess anti-inflammatory, anticancer and anti allergic property. The present study evaluates the efficacy of luteolin against N-nitrosodiethylamine (DEN) induced HCC in albino rats. In the highlight of the above, luteolin was evaluated for its efficacy against DEN induced HCC in male Wistar albino rats. The Biochemical parameters such as tissue damaging enzymes viz., AST, ALP, LDH and γ-GT, enzymatic antioxidants viz., SOD, CAT, GSH and GPx and histopathological changes have been estimated. The tissue damaging enzymes were found to be high in DEN alone treated group whereas the enzymatic antioxidants decreased destructively. Severe lesions and cirrhosis were observed in the toxin (DEN alone) treated group. The luteolin treated DEN group altered the tissue damaging enzymes and the enzymatic antioxidants. The damaged lesion in the histoarchitecture of DEN treated rat liver was almost completely restored. Finally this study strongly demonstrates that luteolin has potent curative property against HCC in albino rats.     

Metachronous contralateral testicular and bilateral adrenal metastasis of chromophobe renal cell carcinoma: a case report and review of the literature

Chromophobe renal cell carcinoma(ChRCC) metastatic to the testis has not,to the best of our knowledge,been reported in the literature.Nor have there been reports of delayed bilateral adrenal metastasis of ChRCC.Here we report a case of metachronous contralateral testicular and bilateral adrenal metastasis of ChRCC in a 70-year-old man who underwent right radical nephrectomy for RCC six years ago.He was admitted to the hospital because of left intrascrotal enlargement of two-month duration.Ultrasonography re...     

Metastasis of gastric carcinoma to the thyroid and lung: a case report and review of literature

Cancer metastasis to the thyroid is extremely rare. The more commonly reported primary sites for metastasis to the thyroid are the kidney, breast, lung, colon, esophagus, and uterus. Thyroid metastasis from the stomach has only been reported in three cases. Herein, we report a 71-year-old man presenting with bilateral thyroid multinodular lesions. Bilateral near-total thyroidectomy was performed due to airway compression with related symptoms. Wedge resection of a suspicious pulmonary nodule, detected on CT, was performed for diagnosis. Polypoid lesions in the stomach were examined by trans-scopic biopsy. Poorly differentiated adenocarcinomas with the same histological profiles were noted at these three sites. The immunohistochemical staining for thyroglobulin of these specimens was negative. We conclude that a new thyroid mass appearing in a patient with present or prior malignancies should raise the concern of metastatic disease.     

鸭绿江茴鱼肠道粘膜上皮扫描电镜观察

文中利用扫描电镜技术对鸭绿江茴鱼肠道粘膜进行观察和研究,结果表明前肠皱褶是沿着肠管方向呈波浪状,中肠则表现为锯齿状,后肠的皱褶则呈现为无序的瘤状;中、后肠微绒毛多且呈明显的簇状;杯状细胞从前肠到后肠数量明显增多．     

Survivin在原发性肝癌组织中的表达及其临床意义

目的 研究Survivin在原发性肝细胞癌中的表达水平及其临床意义,探讨其表达水平与原发性肝细胞癌发生发展的关系.方法 将101例原发性肝细胞癌及32例正常肝组织标本用免疫组化SP法检测Survivin的表达.结果 Survivin在原发性肝细胞癌组织中的表达明显高于正常肝组织中,差异具有统计学意义（p＜0.05）;在原发性肝癌中,Survivin的表达与肿瘤的淋巴结转移以及肿瘤的分化程度显著相关（p＜0.05）.结论 Survivin在原发性肝癌中的表达与肿瘤的发生发展有关,Survivin可作为判断原发性肝癌预后的指标之一.     

人鼻咽鳞癌细胞CNE1/R PECAM-1真核表达载体的构建

通过TA克隆技术及二步克隆的方法构建人鼻咽鳞癌细胞CNE1/R PECAM-1的真核表达载体。将已克隆至Pmd19-T Simple载体的PECAM-1基因片段使用Not/HindⅢ酶切,亚克隆至pcDNA3.1/myc-His(-)A载体并双酶切及测序鉴定。成功构建了人鼻咽鳞癌细胞CNE1/R PECAM-1的真核表达载体,为下一步建立人鼻咽鳞癌PECAM1基因过表达细胞系奠定了基础。