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1 General aspects (1)   1.1 Epidemiology (14)   1.2 Population genetics (2)   1.3 Pathogenesis (1)   1.4 Quality of life (20)   1.5 Glaucomas as cause of blindness (8)   1.6 Prevention and screening (13) 2 Anatomical structures in glaucoma (0)   2.1 Conjunctiva (10)   2.2 Cornea (23)   2.3 Sclera (16)   2.4 Anterior chamber angle (7)   2.5 Meshwork (0)     2.5.1 Trabecular meshwork (15)     2.5.2 Schlemms canal (1)     2.5.3 Scleral outlet channels (1)   2.6 Aqueous humor dynamics (0)     2.6.1 Production (0)     2.6.2 Outflow (1)       2.6.2.1 Trabecular meshwork (4)       2.6.2.2 Uveoscleral (1)     2.6.3 Compostion (6)   2.7 Episcleral veins and venous pressure (2)   2.8 Iris (6)   2.9 Ciliary body (0)   2.10 Lens (0)   2.11 Vitreous body (0)   2.12 Choroid, peripapillary choroid, peripapillary atrophy (18)   2.13 Retina and retinal nerve fibre layer (37)   2.14 Optic disc (42)   2.15 Optic nerve (2)   2.16 Chiasma and retrochiasmal central nervous system (13)   2.17 Stem cells (5)   2.20 Other (0) 3 Laboratory methods (0)   3.1 Microscopy (0)   3.2 Electron microscopy (2)   3.3 Immunohistochemistry (2)   3.4 Molecular genetics (0)     3.4.1 Linkage studies (0)     3.4.2 Gene studies (30)   3.5 Molecular biology incl. 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pharmacoeconomics (8) 15 Miscellaneous (37)

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Abstract #82502 Published in IGR 20-4

The role of lysyl oxidase-like 1 (LOXL1) in exfoliation syndrome and glaucoma

Schlötzer-Schrehardt U; Zenkel M
Experimental Eye Research 2019; 189: 107818

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Exfoliation syndrome (XFS) is an age-related systemic disease that affects the extracellular matrix. It increases the risk of glaucoma (exfoliation glaucoma, XFG) and susceptibility to diseases of elastin-rich connective tissues. LOXL1 (lysyl oxidase-like 1) is still recognized as the major genetic effect locus in XFS and XFG in all populations worldwide, although its genetic architecture is incompletely understood. LOXL1 is a key cross-linking enzyme in elastic fiber formation and remodeling, which is compatible with the pathogenetic concept of XFS as a specific type of elastosis. This review provides an overview on the current knowledge about the role of LOXL1 in the etiology and pathophysiology of XFS and XFG. It covers the known genetic associations at the LOXL1 locus, potential mechanisms of gene regulation, implications of LOXL1 in XFS-associated fibrosis and connective tissue homeostasis, its role in the development of glaucoma and associated systemic diseases, and the currently available LOXL1-based in vivo and in vitro models. Finally, it also identifies gaps in knowledge and suggests potential areas for future research.

Department of Ophthalmology, University of Erlangen-Nürnberg, Schwabachanlage 6, 91054, Erlangen, Germany. Electronic address: ursula.schloetzer-schrehardt@uk-erlangen.de.

Full article

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Classification:

9.4.4.1 Exfoliation syndrome (Part of: 9 Clinical forms of glaucomas > 9.4 Glaucomas associated with other ocular and systemic disorders > 9.4.4 Glaucomas associated with disorders of the lens)
3.4.2 Gene studies (Part of: 3 Laboratory methods > 3.4 Molecular genetics)
3.6 Cellular biology (Part of: 3 Laboratory methods)

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