电针对脑出血大鼠脑组织病理形态学及脑组织含水量和神经损伤积分值的影响

目的 :观察电针对大鼠脑出血模型的疗效。方法 :选择胶原酶加肝素联合注射法诱导脑出血大鼠模型 ,观察电针不同穴位对其脑组织病理形态学、脑含水量和神经损伤积分值的影响。结果 :电针水沟组 (取水沟、上星穴 )、电针风府组 (取风府、哑门穴 )均可明显改善胶原酶加肝素联合注射法诱导大鼠脑出血模型的脑组织形态学损害和神经行为功能的缺损 ,降低因出血导致的血肿周围组织的水肿 ;且电针水沟组在改善大鼠脑出血模型的脑组织形态学损害和神经行为功能的缺损方面 (72h姿势反射和平衡反射积分值 )优于电针风府组。结论 :电针水沟、上星和电针风府、哑门对大鼠脑出血损伤均有一定程度的保护作用 ,且前者的保护作用优于后者     

抗纤一号对肺纤维化大鼠病理形态学及肺功能影响的实验研究

目的：从形态学及肺功能研究肺纤维化的形成过程，为治疗肺纤维化提供依据。方法：采用博莱霉素复制肺纤维化大鼠模型，对空白对照组、模型组、抗纤一号干预组、抗纤一号治疗组、醋酸泼尼松组进行肺功能检查和肺组织形态学观察。结果：抗纤一号干预组、抗纤一号治疗组和醋酸泼尼松组大鼠肺功能与模型组比较均有不同程度的改善，同时病理结果显示各治疗组肺纤维化改变明显好于模型组。结论：抗纤一号能不同程度地预防及阻隔肺纤维化大鼠的病理形成过程，改善大鼠肺功能。     

川芎嗪对博莱霉素致肺纤维化大鼠病理形态学干预作用

目的:研究川芎嗪注射液对博莱霉素A<,5致肺纤维化大鼠肺组织I型胶原(Col-Ⅰ)、Ⅲ型胶原(Col-Ⅲ)及层粘连蛋白(LN)的干预作用.方法:70只Wistar大鼠随机分为空白组、模型组、川芎嗪大剂量组(简称"大剂量组")、川芎嗪中剂量组(简称"中剂量组")、川芎嗪小剂量组(简称"小剂量组").除空白组外其他4组气管内注入博菜霉素A5造模.造模第2天大、中、小剂量组开始每日腹腔注射川芎嗪注射液至28天,剂量分别为250mg/kg·d-1、150mg/kg·d-1、40mg/kg·d-1.第28天时采用免疫组织化学方法检测lung肺组织Col-Ⅰ、Col-Ⅲ、LN的表达,并进行半定量分析,同时取肺组织行He染色,观察病理形态学改变.结果:与空白组比较.模型组Co1-Ⅰ、Col-Ⅲ及LN相对含量明显升高(P<0.01);川芎嗪各剂量组表达有不同程度的降低,以大剂量组最为明显.结论:川芎嗪注射液能抑制肺纤维化大鼠Col-Ⅰ、Col-Ⅲ、LN的表达,较少细胞外基质积聚,可能是川芎嗪注射液发挥治疗作用的机理之一.     

胃肠道生理功能检查方法及其临床意义(一)

近年来,在胃肠道疾病的诊断中,纤维内窥镜检查对不少疾病已可作出明确的诊断,是否还需要进行胃肠道生理功能的检查?有何临床意义?一般有哪些检查方法?现就这些问题谈谈个人的认识。在胃肠道疾病中,由于内窥镜的广泛开展,X 线影象检查技术的不断完善,使人们对胃肠道疾病的病理形态学改变有了更深入和直观的了解,正因为在病理     

新抗疟化合物的临床前毒性研究——Ⅳ.5-对氟苯氧基伯喹柠檬酸盐亚急性毒性试验的病理形态学观察(1)

本文报道5-对氟苯氧基伯喹柠檬酸盐(NP0090)和伯喹亚急性毒性试验中42只狗和6只猴的大体解剖和脏器显微镜检查的病理形态学观察的结果,其中以心、肝作为重点。     

Reduced-size orthotopic liver transplantation with different grade steatotic grafts in rats

Objective To explore the survival time, pathological change and liver regeneration in different kinds of reduced-size liver transplantation in rats using steatotic grafts. Methods Macrovesicular and microvesicular steatotic rat liver models were established by feeding rats with a diet consisting of 79% standard chow, 20% lard and 1% cholesterol for different time periods. With modified two cuff vascular anastomoses and end-to-end sutures on the bile duct, reduced-size orthotopic rat liver transplantations were performed in an attempt to explore the ratio of graft weight to recipient body weight, recipient original liver weight and histological and electron-microscopic findings in comparison with whole rat liver transplantations. Results A one-week survival rates for the rats undergoing whole liver transplantation, and those in the 70% reduced-size orthotopic liver transplantation (ROLT) group, the 60%ROLT group and the 50%ROLT group (grade Ⅰ macrosteatotic grafts) were 91.67%, 75%, 75% and 25%. A 2-week survival rate was 83.33%, 75%, 58.33% and 0 respectively. And their graft recipient body weight (GRBW) values SD were 3.56%±0.36%, 2.53%±0.15%, 2.28%±0.12% and 1.83%±0.16%, respectively. In grade Ⅱ macrosteatotic grafts, the one-week survival rate for those undergoiong whole liver transplantation and those in the 70% ROLT group was 83.33% and 25%. In the microsteatosis grafts for whole liver transplantation, 70% ROLT, 60% ROLT and 50% ROLT, the one-week survival rate was 83.33%, 75%, 75% and 33.33%; and the 2-week survival rate was 75%, 66.67%, 66.67% and 0, respectively. The survival rate of the 50% ROLT group using grade Ⅰ macrosteatotic grafts or grafts mainly with microsteatosis was significantly different from that of other groups. While using macrosteatotic grafts in grade Ⅱ, the 1-week survival rate of the 70% ROLT group was very poor. Pathological findings after operation included liver regeneration and portal space with mild lymphocyte infiltration. Improvement in steatosis and dilation of the central vein and sinusoids was observed in some rats.Conclusions In the successful and long-term survival of rat reduced-size liver transplantation using grade Ⅰmacrosteatotic grafts or grafts with microsteatosis, the GRBW values should be over 2.28%±0.12%, and the value of graft-recipient liver weight should be over 60%. Steatotic livers in grade Ⅱ should not be used as grafts in ROLT. Steatosis was improved and even totally cured in some long-term survival rats.     

清金得生片抗小鼠Lewis肺癌作用的病理形态观察

目的：探讨清金得生片抗小鼠Lewis肺癌的作用机制。方法：将C57小鼠常规接种Lewis肺癌，随机分5组，设清金得生片高剂量组（3．5g／kg）、中剂量组（2．1g／kg）、低剂量组（1．05g/kg）、FT-207组、生理盐水组，连续灌胃给药10天，停药24h后拉颈处死，取肿瘤称重量，测量体积，肿瘤组织用10％甲醛固定，切片、HE染色。结果：清金得生片各剂量组肿瘤重量明显轻于生理盐水组，肿瘤体积明显比生理盐水组小，肿瘤重量抑制率为26．52％～46．96％，肿瘤体积抑制率为26．45％～45．06％。镜下可见部分瘤细胞体积缩小，核致密，染色质浓缩边集，个别瘤细胞核断裂形成大小不等的胞核小体，肿瘤细胞核分裂数明显减少，在大片坏死残留的肿瘤细胞周围有大量的淋巴细胞和白细胞浸润。结论：清金得生片有抑制Lewis肺癌细胞增殖，诱导细胞凋亡，以及提高机体免疫功能的作用。     

心复康对大鼠实验性心肌梗死形态学及体外培养乳鼠心肌细胞超微结构的影响

用结扎大鼠左冠状动脉前降支的方法造成心肌梗死病变模型,给予中药心复康后对其病理形态的改变进行观测,结果显示可使实验性心肌梗死大鼠梗死程度减轻,梗死后修复增快。采用体外培养的大鼠乳鼠心肌细胞,通过暂时停止供应心肌细胞生存必需的糖和氧,造成心肌细胞缺氧样损伤,从细胞水平观察心复康的作用,结果表明可明显改善心肌细胞结构缺血样损伤。提示心复康对心肌梗死具有防治作用。     

食道癌660例临床病理形态学分析

<正> 食道癌是南阳市恶性肿瘤病死率较高的一类病变,同样也是我市临床病理工作中最常见的疾病,癌肿的类型不同,治疗方案、预后也有较大差异。为此,我们通过660例外检食道手术标本分析,试图探讨研究我市食道癌病理变化特点,以达到对病人作出正确诊断及时治疗之目的。