间质干细胞与脑缺血损伤

间质干细胞 (MSCs)是指存在于骨髓间质中具有自我复制能力 ,并在特定条件下分化为中胚层起源组织的非造血组织干细胞。MSCs具有多向分化潜能和强大的增殖能力 ,由于易从骨髓中分离及体外扩增纯化 ,在组织工程领域倍受关注。由于近二年来发现了MSCs可以横向分化 (Transdifferentiation)为外胚层起源的神经细胞 ,使其在神经系统疾病的应用更加广泛 ,尤其在脑血管病方面 ,本文就MSCs对脑缺血损伤治疗的研究与进展综述如下。1　MSCs的生物学特性Friedenstein等在 1970年左右首次报道了骨髓标本中小部分贴附细胞在培养过程中能够分化形成…     

10例胸膜间皮瘤X线及CT诊断

胸膜间皮瘤是一种较少见的原发性肿瘤，来自胸膜间皮细胞或胸膜下间质组织，分为局限结节型和广泛浸润型，临床上与肺内肿瘤，胸膜转移瘤，感染性胸腔积液难于鉴别，常须组织细胞学检查，甚至尸检后才明确诊断，本文收集2001、4—2004、4经X线、CT检查并经病理证实的胸膜间皮瘤10例，作一分析报道。     

胃肠道恶性间质瘤8例临床分析

胃肠道恶性间质瘤(Gastro Intestinal Stnmaal Tumors GIST）是一种起源于胃肠壁肌间丛自搏细胞的间叶实体肿瘤。约占所有胃肠道恶性肿瘤的1％～3％，由于缺乏特征性临床征象。极易误诊，自80年代末提出GISI概念以来。有学者已做了较多研究工作，但仍存有多方面争议。现结合我院2000年-2003年间经病理证实的8例患者资料进行分析、探讨。     

卵巢支持-间质细胞瘤8例临床病理分析

本文总结了8例罕见的卵巢支持-间质细胞瘤。讨论了其病理诊断、组织类型、临床表现和病理类型的关系及恶性程度等。提出了此肿瘤发生于卵巢外是由于阔韧带内残留了胚胎时期部分性索而成,并认为肿瘤囊腔形成与肿瘤细胞脂化有关等见解。     

去细胞喉支架的制备及喉肌细胞再生的可行性研究

Objective To prepare a deeelhilarized whole laryngeal scaffold by utilizing a perfusion-decellularized technique, reseed cells on it, and construct recellularized laryngeal muscles. Methods Perfusion decelluarized larynxes were obtained by common carotid arterious perfusion with detergents. Then they were performed by macroscopic view, histological examination, scanning electron microscopy (SEM) and cartilage viability. Decellularized laryngeal scaffold were then reseeded with inducted mesenchymal stem cells (MSCs). Composites were transferred into greater omentums of rabbits after one day' s adherence and harvested after eight weeks. Macroscopic view, histological examination and immunohistochemistry were performed. Results Perfusion larynxes became transparent after two hours. Histology and SEM indicated that perfnsion method shewed better deculluarized effect. More ventages and collagen fibers but no intact cell or anclei were retained in the decellularized martrix. Porosity measured by Image pro plus 6. 0 was 80. 4% ± 3.2% (x ± s). Chondrocyte vitality assay indicated chondrocyte vitality rate in the perfusion group was 86. 9% ± 1.5% . After eight weeks, vascularization formed and integrated cartilage frameworks still remained. Histological examination could clearly show the presence of muscle bundles and vessels. Immunohistoehemical examination indicated that sarcomeric-α actin expressed positively in corresponding areas. Conclusions It is feasible to reseed MSCs into the decellularized laryngeal muscle matrix for constructing tissue-engineered laryngeal muscles. This in vivo maturation into the omentum could be the first step before in situ implantation of the construct.     

几种女性生殖道软组织瘤样病变的病理诊断

介绍几种少见的女性生殖道软组织瘤样病变，包括纤维上皮性间质息肉、结节性筋膜炎、手术后梭形细胞结节、伴淋巴水肿的外阴肥厚、输卵管脱垂伴间质反应性增生的病理诊断及其鉴别诊断方面的研究进展。     

睾丸间质细胞瘤1例并文献复习

睾丸间质细胞瘤(Leydig cell tumor,LCT)又称kydig细胞瘤,是睾丸性索/性间质肿瘤的一种单一组织类型的肿瘤,是由正常发育和演化的成分间质细胞构成的.本病少见,约占睾丸肿瘤的1%～3%,占间质肿瘤的14%[1].2007年11月我院收治了1例睾丸LCT,现对其临床病理特征做初步探讨,以期提高对LCT的认识及诊治水平.     

狼疮性肾炎小管间质性改变与临床特征的关系

目的 评估肾小管问质中免疫沉积物(TID)、间质炎症、肾小球病变及肾功能的关系。方法 根据30例狼疮性肾炎(LN)患者的临床表现、实验室检测和肾活检材料进行上述之间关系的分析。结果 30例中发现TID者40％，TID与肾小球病损的程度呈正相关，TID的发生率与补体、高滴度ds-NA有相关，也与LN的增生性严重程度WHOⅡ～Ⅳ型有一定的关系。至于间质炎症的严重程度与血肌酐(SCr)水平和血压有相关性，与肾功能减退的程度呈正相关。结论 间质炎症的发生除了继发于TID，可能还有其它的发病机理，且可作为肾功能恶化速度的一个准确的预示指标。