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10.1167/iovs.13-13676 http://scihub22266oqcxt.onion/10.1167/iovs.13-13676 C4585571!4585571 !24644048     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=24644048 &cmd=llinks): Failed to open stream: HTTP request failed! 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Endothelin receptor-A antagonist attenuates retinal vascular and neuroretinal pathology in diabetic mice |pdf=|usr=}}{{24644048 }} gab.com Text Endothelin receptor-A antagonist attenuates retinal vascular and neuroretinal pathology in diabetic mice JO: Invest Ophthalmol Vis Sci http://www.kidney.de/pget.php?&tw=1&pmid=24644048 #FOAvip PURPOSE: We sought to determine the effects of atrasentan, a selective endothelin-A receptor antagonist, on the retinal vascular and structural integrity in a db/db mouse, an animal model of type 2 diabetes and diabetic retinopathy. METHODS: Diabetic mice, 23 weeks old, were given either atrasentan or vehicle treatment in drinking water for 8 weeks. At the end of the treatment period, eyes underwent trypsin digest to assess the retinal vascular pathology focusing on capillary degeneration, endothelial cell, and pericyte loss. Paraffin-embedded retinal cross sections were used to evaluate retinal sublayer thickness both near the optic nerve and in the retinal periphery. Immunohistochemistry and TUNEL assay were done to evaluate retinal cellular and vascular apoptosis. RESULTS: Compared with untreated db/db mice, atrasentan treatment was able to ameliorate the retinal vascular pathology by reducing pericyte loss (29.2% ± 0.4% vs. 44.4% ± 2.0%, respectively, P < 0.05) and capillary degeneration as determined by the percentage of acellular capillaries (8.6% ± 0.3% vs. 3.3% ± 0.41%, respectively, P < 0.05). A reduction in inner retinal thinning both at the optic nerve and at the periphery in treated diabetic mice was also observed in db/db mice treated with atrasentan as compared with untreated db/db mice (P < 0.05). TUNEL assay suggested that atrasentan may decrease enhanced apoptosis in neuroretinal layers and vascular pericytes in the db/db mice. CONCLUSIONS: Endothelin-A receptor blockade using atrasentan significantly reduces the vascular and neuroretinal complications in diabetic mice. Endothelin-A receptor blockade is a promising therapeutic target in diabetic retinopathy. Twit Text FOAVip Endothelin receptor-A antagonist attenuates retinal vascular and neuroretinal pathology in diabetic mice ????Invest Ophthalmol Vis Sci http://www.kidney.de/pget.php?&tw=1&pmid=24644048 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=24644048 #FOAvip English Wikipedia <ref>{{Cite pmid|24644048 }}</ref> Endothelin receptor-A antagonist attenuates retinal vascular and neuroretinal pathology in diabetic mice #MMPMID24644048 Chou JC ; Rollins SD ; Ye M ; Batlle D ; Fawzi AA Invest Ophthalmol Vis Sci 2014[Apr]; 55 (4 ): 2516-25 PMID24644048 show ga PURPOSE: We sought to determine the effects of atrasentan, a selective endothelin-A receptor antagonist, on the retinal vascular and structural integrity in a db/db mouse, an animal model of type 2 diabetes and diabetic retinopathy. METHODS: Diabetic mice, 23 weeks old, were given either atrasentan or vehicle treatment in drinking water for 8 weeks. At the end of the treatment period, eyes underwent trypsin digest to assess the retinal vascular pathology focusing on capillary degeneration, endothelial cell, and pericyte loss. Paraffin-embedded retinal cross sections were used to evaluate retinal sublayer thickness both near the optic nerve and in the retinal periphery. Immunohistochemistry and TUNEL assay were done to evaluate retinal cellular and vascular apoptosis. RESULTS: Compared with untreated db/db mice, atrasentan treatment was able to ameliorate the retinal vascular pathology by reducing pericyte loss (29.2% ± 0.4% vs. 44.4% ± 2.0%, respectively, P < 0.05) and capillary degeneration as determined by the percentage of acellular capillaries (8.6% ± 0.3% vs. 3.3% ± 0.41%, respectively, P < 0.05). A reduction in inner retinal thinning both at the optic nerve and at the periphery in treated diabetic mice was also observed in db/db mice treated with atrasentan as compared with untreated db/db mice (P < 0.05). TUNEL assay suggested that atrasentan may decrease enhanced apoptosis in neuroretinal layers and vascular pericytes in the db/db mice. CONCLUSIONS: Endothelin-A receptor blockade using atrasentan significantly reduces the vascular and neuroretinal complications in diabetic mice. Endothelin-A receptor blockade is a promising therapeutic target in diabetic retinopathy. |*Endothelin Receptor Antagonists [MESH] |Animals [MESH] |Apoptosis/*drug effects [MESH] |Atrasentan [MESH] |Cell Count [MESH] |Diabetes Mellitus, Experimental/*drug therapy/metabolism/pathology [MESH] |Diabetic Retinopathy/*drug therapy/metabolism/pathology [MESH] |Endothelin-1/antagonists & inhibitors [MESH] |Female [MESH] |Immunohistochemistry [MESH] |In Situ Nick-End Labeling [MESH] |Mice [MESH] |Mice, Inbred C57BL [MESH] |Pyrrolidines/*therapeutic use [MESH] |Retinal Ganglion Cells/*drug effects/pathology [MESH]Endothelin receptor-A antagonist attenuates retinal vascular and neuro(epmc).pdf DeepDyve Pubget Overpricing