病理化学

Experimental methods: pathological slices: To observe the changes of pathomorphology and measure the circular area of internal elastic lamina , area of neonate intima and vascular lumen, the intimal proliferatory index and percentage, the index of lumen stenosis and positive index of proliferating cell nuclear antigen through the specimens stained by HE and immunohistochemistry.

实验方法：病理切片：进行HE染色和免疫组织化学染色，分别观察病理形态学改变；测定和计算受损血管内弹力膜环绕总面积、新生内膜面积、管腔面积、内膜增生指数、内膜增生百分比、管腔狭窄指数和增殖细胞核抗原阳性指数；观察MMP-2、MMP-3、TIMP-1和PDGF-BB的免疫组化表达。

Methods: We divide the rats into 5 groups in random, with Morris method, detect the change of some active oxygen radicals such as super-oxide demitasse, Nitric Oxide Synthase, malondialdehyde etc. Also, we detect the change of cholinesterase, Monoamine Oxidize; using HE,PAS staining, immuno-histochemical technique, detect hippocampus CA1 cerebral pathology slices optical density value of NOS, CHE and lipofuscin of neural cell; detecting apoptosis rate and the expression of P53 , which are neuronal apoptosis related genes.

大鼠随机分为5组，采用"Morris水迷宫"法观察脑缺血性模型大鼠学习记忆功能，检测超氧化物歧化酶、一氧化氮合酶、丙二醛等自由基代谢异常的改变，检测胆碱酯酶、单胺氧化酶等老化相关酶的变化、脑组织神经细胞免疫组织化学技术、检查海马CA1区脑组织的病理切片，检测NOS、CHE光密度值；流式细胞技术：检测细胞凋亡率，及促细胞凋亡基因、P_(53)蛋白表达；病理切片采用HE染色、PAS染色及免疫组化法检查，检测对大鼠海马神经元细胞一般病理变化及脑细胞内脂褐含量。

The Council supervises the work of subject matter standing committees including: bacteriology; biochemistry, physiology, and molecular biology; biological control; chemical control; diagnosticians; diseases of ornamental plants and turf grasses, environmental quality and plant health; epidemiology; exobiology and space phytopathology; forest pathology; genetics; integrated pest management; mycology; mycorrhizae; nematology; plant disease detection; plant disease losses; postharvest pathology and mycotoxicology; seed pathology; soil microbiology and root diseases; tropical plant pathology and virology.

该协会主要研究范围涉及细菌学、生物化学、生理学、分子生物学、生物控制学；化学控制学；诊断学；观赏植物和草皮病理、环境质量与植物健康；流行病学；外空生物学和空间植物病理学；森林病理学；遗传学；病虫害综合管理；真菌学；线虫学；植物疾病诊断；植物病害损失；收割期后的植物病理学和真菌毒理学；种子病理学；土壤微生物学和植物根病理；热带植物病理学与滤过性微生物学等。

Intimal areas were measured using morphometric analysis of perfusion-fixed vein graft specimens, and intimal thickness was calculated using circumferential measurements. The SMC proliferation was studied by the immunohistochemical detection of proliferating cell nuclear antigen. Expression of MMP-2、MMP-9 mRNA in vein grafts and unoperated control Vein grafts was detected by reverse transcription polymerase chain reaction. Substrate gel zymography was used to determine the proteolytic activity.

分别行HE染色、Verhoeff弹性纤维染色观察组织病理变化，计算机病理图象分析系统测量新生内膜厚度及面积，免疫组织化学方法检测静脉壁增殖细胞核抗原表达以观察细胞增殖情况，半定量逆转录-聚合酶链反应检测静脉壁基质金属蛋白酶-2(MMP-2)和基质金属蛋白酶-9(MMP-9)mRNA的表达，明胶酶谱法检测MMP-2、MMP-9活性，比较各组之间的差别。

Sixty-three cases of AFP-positive gastric carcinoma were divided into four subtype: hepatoid type 22 cases (34.9％), fetal gastrointestinal type 15 cases (23.8%), and mixed type of the hepatoid type with enteroblastic differentiation to be 24 cases(38.1%), and yolk sac tumor-like type 2 cases (3.2％).

应用光镜、电镜、组化和免疫组织化学方法，对87例AFP阳性胃癌中临床病理资料较完整的63例进行病理组织形态观察，并用2例3个月妊娠的胚胎胃肠组织以同样方法行相关的对比研究。

Materials and methods: The lung preparation of 6 SARS death patient (died in 9,14,20,29,33,38d) and 6 macaque model (killed in 7,12,14,14, 32, 35d)were objects. Pathological changes, collagen fibers, lattice fibers, elastic fibers, collagen I and III in lungs and fine structure changes were studied by routine H.E dyeing, trigeminy dyeing, trinitrophenol- sirius red staining and polarization microscope, electron microscope and image analysis. Expression of Vimentin、 TGFβ_1、 TNF α、 IL-1β and MMP-2 were detected by immunohistochemistry.Results:1. Pathological changes of SARS death patient.

材料与方法：以6例SARS死亡患者(分别于发病后9、14、20、29、33、38d死亡)和6只猕猴实验模型(分别于染毒后7、12、14、14、32、35d活杀取材)肺标本为对象，应用H.E染色、三联染色、苦味酸-天狼猩红-偏振光法、电镜和图像分析等技术，对比性观察SARS肺组织病理变化和纤维化的病理过程、胶原纤维、网状纤维和弹力纤维的变化特点、Ⅰ型与Ⅲ型胶原纤维的数量和分布规律，旨在探讨SARS肺纤维化的病变经历过程及特点；利用免疫组织化学和形态计量学技术检测SARS死亡患者肺脏的Vimentin、TGFβ_1、TNFα、IL-1β和MMP-2等与炎症反应和纤维化相关活性因子，探讨其发病机制。

ABSTRACT Objective To discuss the clinical pathologic features and differential diagnosis of mixed germ cell sex cord stromal tumorwith malignant variant of germ cell tumor Methods The clinical pathologic datum and immunophenotype were studied in the case of ovary MGCSCST with malignant variance of germ cell tumor Results The patient's genital anatomy and female phenotype were normal,karotypes was 46xx with uterogestation The tumor tissue consisted of mixed germ cells and sex cord stromal cells with evident malignancy of mixed germ cells There was no atypical structure of gonadoblastoma in tumor tissue Conclusion MGCSCSST has complex morphosis,thus,to prevent misdiagnosis,more samples should be collected and more slices be cut The patient may have prognosis malo when there are high malignant variants of mixed germ cells in tumor tissue

目的 探讨混合性生殖细胞性索间质肿瘤(mixed germ cell sex cord stromal tumor，MGCSCST)伴恶性生殖细胞肿瘤变异型的临床病理特点及鉴别诊断。方法卵巢MGCSCST伴恶性生殖细胞肿瘤变异型的病例进行临床病理特征和免疫表型分析。结果患者生殖器的解剖结构和女性表型正常，染色体组型是46xx，足月妊娠。肿瘤组织由混合性生殖细胞和性索间质肿瘤构成，混合性生殖细胞有显著的恶性特征。瘤组织中没有典型的性腺母细胞瘤结构。结论 MGCSCST有复杂的形态结构，因此更多的取材和切片可以防止误诊，当肿瘤组织中的混合性生殖细胞有高度恶性变异时，患者预后不良。卵巢肿瘤；生殖细胞性索间质肿瘤；免疫组织化学

Methods The expression of HIF-1α was assayed by means of immunohistochemical technique in 60 patients.

方法通过免疫组织化学方法，了解HIF-1α在60例原发性颊黏膜鳞癌中的表达，分析其阳性表达水平与颊癌临床分期、病理分级以及预后等临床病理因素之间的关系。

A 46-year-old man presented with a gradually growing nodule on the left dorsal foot, which had been present for over 10 years. In the beginning, the lesion was treated as a keloid. Because of poor response to treatment, biopsy was arranged. Sections showed a dermal tumor composed of numerous foamy cells, hyalinized wiry collagen, spindle cells and entrapped collagen. The foamy cells were positive for KP1(CD68) and negative for S-100 protein and HMB-45. The histological and immunohistochemical results were consistent with the diagnosis of lipidized fibrous histiocytoma.

一位46岁男性从十年前开始於左足背上出现一个逐渐长大之结节，一开始被当作蟹足肿给予治疗，因为对治疗的反应不好，故安排了切片检查，病理显示一个由大量泡沫状细胞，坚硬而透明之胶原纤维，梭状细胞，胶原纤维束所构成的真皮肿瘤，免疫组织化学染色显示KP1(CD68)阳性，S-100 protein与HMB45阴性，综合病理与免疫组织化学染色结果，诊断为脂肪性纤维组织细胞瘤。

The maxillofacial and brain injuries were examined. Craniptomy was done to animals of impact injury 6 hours after damage, however it was done to animals of explosive injury in different time point (1 hour, 24 hours, 72 hours, 7 days, 14 days after damage). The pathological characteristics of corelative tissues were examined in detail under light and electron microscopes. The content of LPO, SOD, NO in soft tissue, brain, blood, and cerebral water content were measured, compared with control. The distribution and tissue location of NOS were studied by histochemistical and immunohistochemistic methods. Their relationship was studied to assess the pathological and physiological characteristics of maxillofacial injuries and brain damage associated.

撞击伤各组动物于伤后6h、爆炸伤各组动物于伤后不同时期（1h、24h、72h、7d、14d）开颅检查颅脑损伤情况，切取伤区肌组织、左侧脑组织、脑干标本行光镜、电镜观察；测定伤后肌组织、脑组织与血中LPO、SOD、NO含量及脑水含量变化；并使用组织化学和免疫组织化学的方法，观察伤后脑组织中NOS的分布和组织定位，研究伤后机体的病理及病理生理学改变特点，以及颅脑损伤与机体自由基反应、NO含量改变之间的关系，证实其病理作用。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。