منابع مشابه
The role of substance P in the pathogenesis of pterygia.
PURPOSE Pterygium is a prevalent ocular surface disorder thought to be triggered by chronic ultraviolet damage to the limbus. One of the enigmatic features of pterygium is its wing-like shape, and the mechanism(s) supporting its centripetal growth remain to be elucidated. Because the growth pattern of pterygia mirrors the radial arrangement of corneal nerves, the authors propose that neuropepti...
متن کاملThe science of pterygia.
Pterygium is an ocular surface disease of humans attributed to chronic ultraviolet-B exposure. Clinically, the condition involves invasive centripetal growth with associated inflammation and neovascularisation. Previous clinical studies focused primarily on the clinical characteristics and surgical management of pterygia and, because of this, the pathogenesis of pterygia remains incompletely un...
متن کاملThe Involvement of Adult Stem Cells Originated from Bone Marrow in the Pathogenesis of Pterygia
Pterygium is a proliferative disease. Recent research has reported that stem cells are involved in the pathogenesis of various proliferative diseases, including solid tumors and diabetic proliferate vitreoretinopathy. In previous literature, we hypothesized that adult stem cells originated from bone marrow were involved in the pathogenesis of pterygium. We proved this by immunohistochemical sta...
متن کاملPterygia pathogenesis: corneal invasion by matrix metalloproteinase expressing altered limbal epithelial basal cells.
OBJECTIVE To assess the potential role of matrix metalloproteinases (MMPs) in the pathogenesis of pterygia by comparing the immunolocalization patterns of MMPs in altered limbal basal stem cells, activated fibroblasts, and areas of elastotic degeneration adjacent to the pterygia. METHODS Nine primary and 1 recurrent pterygia along with normal superior limbal-conjunctival tissue and cornea wer...
متن کاملIncreasing lymphatic microvessel density in primary pterygia.
OBJECTIVE To examine lymphatic microvessel density (LMVD) in primary pterygia. METHODS We included tissue samples from 88 excised primary (including 34 grade 1, 28 grade 2, and 26 grade 3) pterygia and from 7 nasal epibulbar conjunctivae segments used as control samples. Sections from each pterygium were immunostained with CD31 and lymphatic vessel endothelial hyaluronan receptor 1 (LYVE-1) m...
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ژورنال
عنوان ژورنال: Archives of Ophthalmology
سال: 2001
ISSN: 0003-9950
DOI: 10.1001/archopht.119.5.695