简述抗原抗体的体外检测技术

结合教材对抗原抗体检测的描述,从酶联免疫吸附试验、免疫层析技术、免疫印迹技术、化学发光免疫分析以及免疫PCR技术5个方面分析了几种常见的抗原抗体体外检测技术,提出相应的教学建议,拓宽学生的知识视野。     

C-FOS基因在胃癌及淋巴结转移癌中表达的研究

目的:研究c-fos在胃癌及淋巴结转移癌中的表达.方法:应用兔抗人c-fos多克隆抗体,SP免疫组织化方法检测76例胃癌及淋巴结转移癌组织.结果:c-fos在胃癌及淋巴结转移癌的阳性率分别为32.6%、63.3%.c-fos在淋巴结转移癌的表达率高于胃癌(P＜0.05).结论:c-fos在淋巴结癌的表达率高于胃癌,此现象说明,c-fos和癌的转移有密切的关系.     

C-FOS基因在胃癌及淋巴结转移癌中表达的研究

目的:研究c-fos在胃癌及淋巴结转移癌中的表达.方法:应用兔抗人c-fos多克隆抗体,SP免疫组织化方法检测76例胃癌及淋巴结转移癌组织.结果:c-fos在胃癌及淋巴结转移癌的阳性率分别为32.6%、63.3%.c-fos在淋巴结转移癌的表达率高于胃癌(P＜0.05).结论:c-fos在淋巴结癌的表达率高于胃癌,此现象说明,c-fos和癌的转移有密切的关系.     

雌激素受体与P53蛋白在胃癌表达的相关性研究

目的:探讨ER与P53蛋白在胃癌中表达的相关性。方法:对119例胃癌标本进行石蜡切片和S-P免疫组织化学染色。结果:ER与P53在胃癌中的表达率分别为66.39％(79/119)和68.07％(81/119),ER与P53蛋白表达呈正相关(rs=0.513)。结论:ER与P53蛋白在胃癌的发生、发展过程中具有互相促进和互相调节的作用。     

热休克蛋白90α在人胃癌中表达的研究

目的 :研究热休克蛋白 90α(HSP90α)在人胃癌组织中的表达。方法 :应用兔抗人HSP90α多克隆抗体对 6 6例手术及胃镜活检胃癌及非胃癌粘膜病变石蜡标本 ,用免疫组织化学SP试剂检测HSP90α的表达。结果 :HSP90α在胃癌、浅表性胃炎、萎缩性胃炎、萎缩性胃炎伴肠上皮化生和不典型增生组织中的阳性率分别为 88%、36 %、5 0 %、75 %。HSP90α在胃癌、萎缩性胃炎伴肠上皮化生和不典型增生中的阳性率明显高于单纯性胃炎病变。在胃癌中的表达率高于萎缩性胃炎伴肠上皮化生和不典型增生 (P <0 .0 1)。结论 :HSP90α在人胃癌及癌前病变中表达值明显增高 ,此现象可能和胃癌的产生和发展有密切关系     

Bcl-2和C-fos基因蛋白在胃癌中的表达及临床病理研究

目的:研究bcl-2及c-fos在胃癌组织中的表达并探讨其生物学意义.方法:应用S-P免疫组织化学方法检测76例胃癌组织中bcl-2、c-fos的表达.结果:bcl-2和c-fos在胃癌中表达的强弱与癌的分化程度及淋巴结转移有关(P＜0.05),与胃癌侵润深度、年龄无关(P＞0.05).结论:bcl-2和c-fos与胃癌的发生发展密切相关,可能是反映胃癌生物学行为和预后的重要标记物.     

Bcl-2和C-fos基因蛋白在胃癌中的表达及临床病理研究

目的:研究bcl-2及c-fos在胃癌组织中的表达并探讨其生物学意义.方法:应用S-P免疫组织化学方法检测76例胃癌组织中bcl-2、c-fos的表达.结果:bcl-2和c-fos在胃癌中表达的强弱与癌的分化程度及淋巴结转移有关(P＜0.05),与胃癌侵润深度、年龄无关(P＞0.05).结论:bcl-2和c-fos与胃癌的发生发展密切相关,可能是反映胃癌生物学行为和预后的重要标记物.     

胃癌组织中bcl-2和c-myc基因表达与病理类型相关性研究

本研究应用较灵敏的SP免疫组织化学方法,对80例胃癌组织进行bcl-2、c-myc基因蛋白的检测,并对两种基因与临床病理的关系进行了研究。结果发现,bcl-2基因蛋白在胃癌的阳性率为46.3％。高、中分化腺癌阳性率为59.4％,显著高于低、未分化腺癌(37.5％);其表达与Merkel分型有关,乳头状腺癌显著高于低分化腺癌;在lauren分型中,肠型胃癌为59.4％,显著高于弥漫型(37.5％);在Ming'S分型中,膨胀型(52.3％)显著高于浸润型胃癌(23.5％)。在伴淋巴结转移的胃癌中,bcl-2的表达率(38.6％)显著低于不伴淋巴结转移者(65.2％)。c-myc基因蛋白在胃癌的阳性率为67.5％,其表达率在低、未分化腺癌中为72.5％,显著高于粘液腺癌(25.0％);而粘液结节型腺癌(25％)明显低于粘液细胞型腺癌(81.8％)和管状腺癌(71.4％)。在膨胀型胃癌的表达率(73.0％)显著高于浸润型(47.1％)。c-myc的表达率与淋巴结转移明显关系。bcl-2、c-myc基因表达与患者性别、年龄、肿瘤发生部位、浸润深度无明显相关性。     

原位RT-PCR检测胃癌中SNC66基因的表达

在组织切片上进行原位RT-PCR扩增(in situ RT-PCR),并在扩增过程中掺入地高辛标记的尿嘧啶核苷酸(Dig-UTP),观察新基因SNC 66在胃癌组织与正常胃粘膜中的表达差异,以分析SNC 66与胃癌发生的相关性。结果发现,25个循环时,20例胃癌标本中有4例阴性不表达,16例呈强阳性表达;当循环数降至10时,则6例呈阴性,9例呈弱阳性表达,另有5例呈强阳性表达。表明SNC 66基因在胃癌组织中存在明显的表达降低或表达缺陷,SNC 66可能是一个消化道肿瘤的负相关基因。     

金属硫蛋白在胃癌中的表达及意义

目的:观察金属硫蛋白(metallothionein,MT)在胃癌中的表达状况.方法:对66例病人的癌组织标本采用SP免疫组织化学方法染色,观察MT的表达状况.结果:MT在胃癌中的表达总阳性率为54.5%(36/66),MT在胃癌中表达与癌组织分化程度相关性不明显;与侵犯深度呈正相关.结论:MT在胃癌中有较高表达,检测MT对制定化疗方案中有指导意义.     

肝癌病人的心理状况及护理措施

通过调查分析20例肝癌病人最担心的心理问题,作者认为,肝癌病人疾病的发展受心理因素制约。护士只有及时发现并解决病人的心理问题,才能满足病人作为社会人的需求,减轻其心理负荷,提高生存质量。     

C-erbB-2基因蛋白在三种癌瘤组织中表达的分析

目的 :为探讨C -erbB - 2蛋白在胃癌、大肠癌和乳腺癌中表达的异同和意义。方法 :取胃癌 114例、大肠癌 10 4例和乳腺癌 10 6例 ,石蜡切片 ,SP免疫组织化学染色。结果 :C-erbB - 2在胃癌、大肠癌和乳腺癌中的阳性率分别为 71.9%、5 7.7%和 5 4 .7%。C -erbB - 2在胃癌和大肠癌中的表达与患者年龄有关 ;C -erbB - 2表达与大肠癌分化程度及乳癌恶性程度有关。结论 :C -erbB - 2高表达是大肠癌、乳癌恶性度高 ,预后不良的指标     

Role of CD97stalk and CD55 as molecular markers for prognosis and therapy of gastric carcinoma patients

Objectives: To explore the mechanism of development and aggressiveness in gastric carcinomas by investigating the expression and role of CD97 and its cellular ligand CD55 in gastric carcinomas. Methods: Tumor and corresponding normal mucosal tissue, collected from 39 gastric carcinoma patients, were examined by immunohistochemistry and RT-PCR for the expression of CD97 and CD55. Results: CD97stalk was strongly stained on scattered tumor cells or small tumor cell clusters at the invasion front of gastric carcinomas. The expression of CD97stalk was frequently observed in tumors of stage Ⅰ and T1 gastric carcinoma patients. The expression of CD97stalk between Stage Ⅰ and Stage Ⅱ, Ⅲ, Ⅳ specimens showed significant difference (P＜0.05), between T1 and T2, T3, T4 specimens also showed significant difference (P＜0.05). Specimens with tumor invasion depth limited in mucosa of T 1 specimens showed higher positive CD55 expression than specimens with the same tumor invasion depth in T2, T3, T4 specimens, the expression of CD55 between T1 and T2, T3, T4 specimens was significantly different (P＜0.05).There was strong correlation between the distribution patterns of CD97stalk and CD55 on tumor tissues (r=0.73, P＜0.05). Signet ring cell carcinomas frequently contained strong CD97stalk and CD55-staining. Conclusions: Our results suggest that CD97stalk is probably involved in the growth, invasion and aggressiveness of gastric carcinomas by binding its cellular ligand CD55. CD97stalk and CD55 could be useful as molecular markers for prognosis and therapy of gastric carcinoma patients.     

Clinical outcomes of fertility-sparing treatments in young patients with epithelial ovarian carcinoma

Objective  

To assess the clinical outcomes of fertility-sparing treatments in young patients with epithelial ovarian carcinoma (EOC).     

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.     

不同浓度黄茶对SD大鼠的胃损伤预防效果

对购买的一种黄茶进行SD大鼠胃损伤预防效果评价。通过动物模型分析,研究其胃损伤预防效果。研究结果表明,高浓度的黄茶比低浓度黄茶降低了IL-6和TNF-α炎症细胞因子水平。本实验中,1000mg/kg灌胃浓度的黄茶（74.6%）具有最强的胃损伤抑制效果。综合分析得出,一定浓度的黄茶具有良好的胃损伤预防效果。     

雌激素受体(ER)与基因蛋白(P53、erbB-2)在胃癌中表达的研究

目的:探讨ER、erbB-2和P53在胃癌表达及相关性。方法:取胃癌手术标本119例,SP免疫组织化学染色。结果:ER、erbB-2和P53在胃癌表达率分别为63.87％,75.51％和73.11％;三者同时阳性者31.93％;ER与P53同时阳性者37.82％;ER与erbB-2同时阳性者33.61％;ER在高分化组阳性率高于低分化组(P<0.05);而erbB-2和P53在低分化组阳性率高于高分化组。70岁以上组P53、ER和erbB-2表达率均较高。结论:ER、P53和erbB-2在胃癌中表达率与癌瘤分化程度相关。P53和erbB-2有相关性,而且它们是胃癌预后不良的指标。     

Role of CD97stalk and CD55 as molecular markers for prognosis and therapy of gastric carcinoma patients

Objectives: To explore the mechanism of development and aggressiveness in gastric carcinomas by investigating the expression and role of CD97 and its cellular ligand CD55 in gastric carcinomas. Methods: Tumor and corresponding normal mucosal tissue, collected from 39 gastric carcinoma patients, were examined by immunohistochemistry and RT-PCR for the expression of CD97 and CD55. Results: CD97^stalk was strongly stained on scattered tumor cells or small tumor cell clusters at the invasion front of gastric carcinomas. The expression of CD97^stalk was frequently observed in tumors of stage I and T1 gastric carcinoma patients. The expression of CD97^stalk between Stage I and Stage II, III, IV specimens showed significant difference (P<0.05), between T1 and T2, T3, T4 specimens also showed significant difference (P<0.05). Specimens with tumor invasion depth limited in mucosa of T1 specimens showed higher positive CD55 expression than specimens with the same tumor invasion depth in T2, T3, T4 specimens, the expression of CD55 between T1 and T2 T3, T4 specimens was significantly different (P<0.05). There was strong correlation between the distribution patterns of CD97^stalk and CD55 on tumor tissues (r=0.73,P<0.05). Signet ring cell carcinomas frequently contained strong CD97^stalk and CD55-staining. Conclusions: Our results suggest that CD97^stalk is probably involved in the growth, invasion and aggressiveness of gastric carcinomas by binding its cellular ligand CD55. CD97^stalk and CD55 could be useful as molecular markers for prognosis and therapy of gastric carcinoma patients. Project (No. 2004C34010) supported by the Science and Technology Bureau of Zhejiang Province, China     

西方民主的制度解读

西方民主源于对封建专制的反抗,在资本主义的长期实践中,它通过一系列的制度安排获得了长足的发展,至今仍有一定的发展空间。在建设社会主义和谐社会的过程中,研究西方民主具有一定的借鉴意义。     

MMP-2在膀胱癌和阴茎癌中表达的比较

目的 :探讨基质金属蛋白酶 (matrixmetalloprotein .ase - 2MMP - 2 )在膀胱癌和阴茎癌中的表达及意义。方法 :采用免疫组化法对MMP - 2在 4 2例膀胱癌和 4 5例阴茎癌中的表达进行研究。结果 :MMP - 2在膀胱癌中的阳性表达率为 2 8.5 7% (12 / 4 2 ) ,在阴茎癌中的阳性表达率为 5 7.78% (2 6 / 4 5 ) ;在膀胱移行细胞癌和腺癌中的阳性率分别为 2 3.6 8% (9/ 38)、75 .0 0 % (3/ 4 ) ,两者比较有显著性差异 (P <0 .0 1)。在阴茎癌高分化组阳性率为 4 5 .16 % ,中分化组阳性率为 85 .7% ,两组比较有显著性差异 (P <0 .0 5 )。结论 :MMP - 2在移行上皮癌与鳞状上皮癌中均有表达 ,其在鳞癌中的表达高于移行细胞癌 ,腺癌细胞的高表达提示腺癌细胞的浸润性高于移行细胞癌。