查询词典 subepithelial

Small intestinal biopsies showed subepithelial collagen deposition with varying degrees of villous atrophy and varying numbers of intraepithelial lymphocytes. Four patients had previous biopsies showing enteropathic changes without collagen deposition. Seven cases were associated with collagenous colitis and 1 also had features of lymphocytic colitis. Three patients also had collagen deposition in gastric biopsies. One case was associated with lymphocytic gastritis. Celiac disease (CD, gluten-sensitive enteropathy) was documented in 4 patients. Five patients made a clinical improvement with combinations of a gluten-free diet and immunosuppressive therapy. Two patients died of complications of malnutrition and 1 of another illness. Clonal T-cell populations were identified in 5 of 6 cases tested. Four of these patients improved clinically after treatment but 1 has died. Collagenous sprue evolved on a background of CD in 4 cases. There was no history of CD in others and these cases may be the result of a biologic insult other than gluten sensitivity.

小肠活检表现为上皮下胶原沉积，绒毛萎缩程度不一，上皮内淋巴细胞浸润数量不等。4例患者以往曾做过活检，表现为其他肠病改变，并没有胶原沉积。7例患者合并胶原性结肠炎，且1例还有淋巴细胞性结肠炎的特征。3例患者胃活检也发现有胶原沉积。1例患者合并淋巴细胞性胃炎。4例患者有乳糜泻（CD，谷蛋白敏感性肠病）病史。5例患者经无麸质饮食和免疫抑制治疗后，临床症状有所改善。2例患者因营养不良合并另一种疾病而死亡。6例患者做了T细胞受体基因重排，其中5例发现有克隆性T细胞群，这5例中有4例治疗后临床症状加重，且1例死亡。4例患者在CD的基础上病发胶原性口炎性腹泻；其余患者无CD病史，他们的发病也许是生物源性损害，而非谷蛋白敏感。

Objective To investigate the effect of laser-assisted subepithelial keratectomy for the correction of high myopia.

目的 评价准分子激光上皮瓣下角膜磨镶术矫治高度近视的疗效。

Objective To observe the effect of hypertonic salineassisted laserassisted subepithelial keratectomy for treatment of myopia.

目的 探讨准分子激光上皮瓣下角膜磨镶术中高渗盐水代替乙醇制作角膜上皮瓣效果。

Objective To investigate the changes in tear film stability and corneal sensitivity after laser-assisted subepithelial keratectomy. Methods LASEK was performed on 152 eyes of 76 patients with myopia.

目的 探讨准分子激光角膜上皮瓣下磨镶术前后泪膜稳定性和角膜中央知觉的变化。

The epithelial openings were observed on and among epithelial cells facing the subarachnoid space.The subepithelial connective tissue penetrated the pineal body forming interlobular septum,and separated the pineal body to parenchymal lobules.

在面对蛛网膜下隙的囊上皮细胞和细胞间存在许多上皮孔；上皮下结缔组织伸入松果体形成小叶间隔，将松果体分隔为许多实质小叶。

Antibodies against col Ⅲ reacted strongly in the entire pterygial stroma. Conclusions Components of ECM are changed in the pterygium: the sub-epithelial connective tissues and vessels are more prominent in the pterygia than in normal conjunctiva tissues, and abnormal fibers are visible only in the deeper subepithelial connective tissues. This study documents the overexpression of LN and col Ⅲ. They may play roles in cellular adherency, migration and angiogenesis. Also this study documents the overexpression of MMP3 which may degrade ECM in the pathogenesis of the pterygium.

结论翼状胬肉组织中ECM的成分较正常球结膜发生改变，有大量的弹性纤维变性、胶原纤维增生及新生血管形成；col Ⅲ在翼状胬肉组织中表达增加，LN及胶原纤维可能对翼状胬肉中血管形成、细胞粘附和迁移及ECM重建起作用；MMP-3在翼状胬肉组织中表达增加，其对ECM成分的降解作用可能有助于翼状胬肉的形成和向角膜中央侵袭。

KEY WORDS: keratectomy,subepithelial,laser-assisted; corneal opacity; refractive errors; vision,entoptic

角膜切削术；上皮下；激光；屈光不正；视觉，内视

Special staining methods, such as Masson and the Van Gieson staining were used to study the distribution of collogen fibers and elastic fibers. ResultsBy HE staining, the subepithelial connective tissues and vessels in the pterygium were more prominent than normal conjunctival tissues. An amorphous subepithelial superficial hyalinized zone and coarse eosinophilic granular materials were observed in the pterygia, but they were not found in normal conjunctival specimens. Coarse fibers were visible only in the deeper subepithelial connective tissues of pterygial samples. With Masson′s staining, the dense staining of collagen fibers was also more prominent in the pterygium than in the subepithelial connective tissues of normal conjunctiva. Abnormal collagen fibers were visible in the deeper sub-epithelial connective tissues of pterygial samples. With Van Gieson staining, abnormal collagen fibers were visible in the deeper subepithelial connective tissues. Dark coarse elastic fibers were found in the abnormal fibers only in the subepithelial deep connective tissues of pinguecula in the pterygia but not in the conjunctiva. With immunohistochemistry staining, MMP-3 was strong in the pterygial epithelium, moderate in fibroblast and absent from pterygial vascular walls. LN was strongly expressed in the blood vessel wall, moderately in the epithelial basement membrane and absent from the entire stroma.

结果HE染色：翼状胬肉组织上皮下基质中存在结缔组织的增生和血管形成；基质浅层存在一无定形物质透明区及粗糙的颗粒样嗜酸性物质，在翼状胬肉体部深层基质中存在粗糙的纤维组织；正常球结膜组织细胞排列整齐；基质为疏松结缔组织，胶原纤维平行排列，其间可见成纤维细胞，散在少量中性粒细胞、毛细血管；Masson染色：翼状胬肉浅层基质中存在致密的胶原纤维染色，深层基质中的胶原纤维存在变性样改变；VG染色：翼状胬肉组织深层基质中存在大量变性的胶原纤维，其间夹杂黑色的弹性纤维；免疫组化染色法：MMP-3在翼状胬肉上皮细胞中呈强表达，成纤维细胞中呈中等强度表达，血管内皮细胞中未见表达；LN在血管壁中呈强表达，在上皮细胞基底膜中呈中等强度表达，在整个基质中未见明显表达；col Ⅲ在整个翼状胬肉基质中呈强表达。

Objective To explore factors which lead to occurrence of subepithelial corneal haze after laser subepithelial keratomileusis.

目的 探讨准分子激光上皮下角膜磨镶手术后角膜上皮下雾状混浊发生的相关因素。

The use of subepithelial connective tissue graft for root coverage procedure had been carried out for over twenty years.

皮下结缔组织移植(subepithelial connective tissue graft)於牙根覆盖手术已有二十余年之历史。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐