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Mahmut R. Koca

Bio: Mahmut R. Koca is an academic researcher. The author has contributed to research in topics: Pseudoexfoliation syndrome & Pseudoexfoliation. The author has an hindex of 1, co-authored 1 publications receiving 374 citations.

Papers
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Journal ArticleDOI
TL;DR: Findings provide evidence for the systemic nature of the pseudoexfoliation syndrome, which apparently involves an aberrant connective-tissue metabolism throughout the body.
Abstract: The pseudoexfoliation syndrome has recently been suggested to represent the local manifestation of a more widespread disorder. In this study, a case of classic bilateral pseudoexfoliation syndrome with systemic distribution of pseudoexfoliation material involving a variety of organ systems is described. Using transmission electron microscopy, typical pseudoexfoliation fibers were identified in autopsy tissue specimens of skin, heart, lungs, liver, kidney, and cerebral meninges in addition to the classic intraocular locations. The pseudoexfoliation material was mainly localized to connective-tissue portions or septa traversing the various organs. The pseudoexfoliation fibers were consistently associated with connective-tissue components, particularly fibroblasts and collagen and elastic fibers; myocardial tissue specimens; and heart-muscle cells. These findings provide evidence for the systemic nature of the pseudoexfoliation syndrome, which apparently involves an aberrant connective-tissue metabolism throughout the body.

400 citations


Cited by
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Journal ArticleDOI
TL;DR: In this paper, the authors provide an update on most recent developments regarding ocular and systemic manifestations and complications, clinical diagnosis and management, and molecular pathophysiology of pseudoexfoliation (PEX) syndrome, and discuss future tasks and challenges in this field.

516 citations

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TL;DR: In view of the multitude of clinical complications, PEX is of relevance to comprehensive ophthalmologists, including specialists in glaucoma, cataract, cornea, neuro-ophthalmology, and retina.

382 citations

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TL;DR: The effect of TGFbeta, a growth factor increased in aqueous humor of glaucomatous eyes and glycocorticoids on trabecular meshwork cells show typical changes in formation of extracellular matrix components and of stress proteins.

236 citations

Journal ArticleDOI
TL;DR: Exfoliation syndrome is an age-related, generalized disorder of the extracellular matrix characterized by production and progressive accumulation of a fibrillar material in tissues throughout the anterior segment and also in connective tissue portions of various visceral organs.

218 citations

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TL;DR: Increased levels of latent and active TGF-beta1 in the aqueous humor of PEX patients, derived from enhanced local synthesis and activation, promote the buildup of the abnormal extracellular elastic material characteristic of P EX syndrome.

213 citations