{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T02:35:18Z","timestamp":1747190118072,"version":"3.40.5"},"reference-count":39,"publisher":"Wiley","license":[{"start":{"date-parts":[[2019,11,15]],"date-time":"2019-11-15T00:00:00Z","timestamp":1573776000000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Ophthalmology"],"published-print":{"date-parts":[[2019,11,15]]},"abstract":"<jats:p><jats:italic>Objective<\/jats:italic>. To compare the thickness of corneal layers, specifically the Descemet\u2019s membrane (DM), in normal corneas and in failed grafts due to rejection (FGRs) using the digital histopathology and to propose a model for the measurement of corneal layers using this method. <jats:italic>Methods<\/jats:italic>. This is a prospective, cross-sectional study performed at the MUHC-McGill University Ocular Pathology &amp; Translational Research Laboratory (McGill University, Montreal, Canada). Histopathological sections of 25 normal human corneas and 40 FGRs were fully digitalized and examined. Inclusion criteria: samples diagnosed as normal corneas or FGRs, from patients older than 18 years of age. Exclusion criteria: histopathological sections without adequate tissue or missing epidemiological information. For each sample, the thicknesses of the epithelium, stroma, and DM were acquired. From a perpendicular plane of reference, two central measurements and two nasal and two temporal peripheral measurements were obtained. <jats:italic>Results<\/jats:italic>. There were differences between the normal and FGR groups in the mean central thickness of the epithelium (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mrow><mml:mi>p<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn>0.001<\/mml:mn><\/mml:mrow><\/mml:math>), the nasal and temporal stromal regions (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M2\"><mml:mrow><mml:mi>p<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn>0.001<\/mml:mn><\/mml:mrow><\/mml:math>), and of the DM in the nasal and temporal regions (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M3\"><mml:mrow><mml:mi>p<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn>0.001<\/mml:mn><\/mml:mrow><\/mml:math>). Compared with the extremities of the sample (nasal and temporal), the mean thickness of the DM in normal corneas was lower in the central region (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M4\"><mml:mrow><mml:mi>p<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn>0.001<\/mml:mn><\/mml:mrow><\/mml:math>), and this difference was not found in the FGR group. <jats:italic>Conclusions<\/jats:italic>. Normal corneas have a thinner epithelium in the central region than the FGR group. In addition, the stroma and DM thicknesses of the nasal and temporal periphery were significantly higher in normal corneas than in those from the FGR group. The digital microscopy protocol applied in this study may be useful for further research studies regarding cornea and other tissues.<\/jats:p>","DOI":"10.1155\/2019\/8283175","type":"journal-article","created":{"date-parts":[[2019,11,15]],"date-time":"2019-11-15T20:32:19Z","timestamp":1573849939000},"page":"1-10","source":"Crossref","is-referenced-by-count":1,"title":["The Use of Digital Microscopy to Compare the Thicknesses of Normal Corneas and <i>Ex Vivo<\/i> Rejected Corneal Grafts with a Focus on the Descemet\u2019s Membrane"],"prefix":"10.1155","volume":"2019","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9605-7647","authenticated-orcid":true,"given":"Ta\u00edse","family":"Tognon","sequence":"first","affiliation":[{"name":"Federal University of S\u00e3o Paulo, MUHC\u2013McGill University Ocular Pathology & Translational Research Laboratory, Penido Burnier Institute, Campinas, Brazil"}]},{"given":"Sabrina","family":"Bergeron","sequence":"additional","affiliation":[{"name":"MUHC\u2013McGill University Ocular Pathology & Translational Research Laboratory, Montreal, Canada"}]},{"given":"Christina","family":"Mastromonaco","sequence":"additional","affiliation":[{"name":"MUHC\u2013McGill University Ocular Pathology & Translational Research Laboratory, Montreal, Canada"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7732-0956","authenticated-orcid":true,"given":"Kleyton","family":"Barella","sequence":"additional","affiliation":[{"name":"Penido Burnier Institute, Campinas, Brazil"}]},{"given":"Adriano","family":"Pasqualotti","sequence":"additional","affiliation":[{"name":"University of Passo Fundo, Lisbon University, Passo Fundo, Brazil"}]},{"given":"Laura","family":"Nunez","sequence":"additional","affiliation":[{"name":"Universit\u00e9 de Montr\u00e9al, MUHC\u2013McGill University Ocular Pathology & Translational Research Laboratory, Montreal, Canada"}]},{"given":"Francisco","family":"Murta","sequence":"additional","affiliation":[{"name":"Lisbon University, The MUHC\u2013McGill University Ocular Pathology & Translational Research Laboratory, Lisbon, Portugal"}]},{"given":"Luciene Barbosa","family":"de Sousa","sequence":"additional","affiliation":[{"name":"Federal University of S\u00e3o Paulo, Goi\u00e1s Eye Bank, S\u00e3o Paulo, Brazil"}]},{"given":"Mauro","family":"Campos","sequence":"additional","affiliation":[{"name":"Federal University of S\u00e3o Paulo, S\u00e3o Paulo, Brazil"}]},{"given":"Miguel Noel Nascentes","family":"Burnier","sequence":"additional","affiliation":[{"name":"MUHC\u2013McGill University Ocular Pathology & Translational Research Laboratory, Federal University of S\u00e3o Paulo, Montreal, Canada"}]}],"member":"311","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.4103\/0974-620X.122289"},{"key":"2","doi-asserted-by":"publisher","DOI":"10.1016\/j.survophthal.2007.04.008"},{"issue":"2 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