Determination of reference values for tear production and intraocular pressure in Pygoscelis penguins of the Antarctic Peninsula

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dc.contributor.authorBayram, Latife Cakir
dc.contributor.authorIsler, Cafer Tayer
dc.contributor.authorEkebas, Goerkem
dc.date.accessioned2024-09-18T20:28:02Z
dc.date.available2024-09-18T20:28:02Z
dc.date.issued2023
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description13th International Symposium on Antarctic Earth Sciences (ISAES) -- JUL 22-26, 2019 -- Incheon, SOUTH KOREAen_US
dc.description.abstractBackground: According to the literature review, this is the first study investigating tear production (TP) and intraocular pressure (IOP) in the Pygoscelis penguins living in their natural habitat. The study aimed to establish normal values for standard ocular tests in the genus Pygoscelis, namely, the Ad & eacute;lie (Pygoscelis adeliae), gentoo (Pygoscelis papua), and chinstrap (Pygoscelis antarctica) penguins, in four different islands of Antarctica. Sampling was made by specifically using the left eye of the penguins. The Schirmer's tear test type I (STT-I) and the Tonovet (R) (rebound tonometer) were used to measure the TP and the IOP, respectively.Results: The mean TP and IOP values of 129 Ad & eacute;lie, chinstrap, gentoo, and 120 adult Ad & eacute;lie, gentoo penguins were determined as 10.2 +/- 4.0 mm/min and 38.9 +/- 13.2 mmHg, respectively. No statistical difference was detected between the penguin species for the mean IOP values, while the difference was determined in all the locations. However, statistical differences in the mean TP values were determined between all locations.Conclusion: The results of this study provide a reference range of Schirmer's tear test (STT) and IOP values in Pygoscelis penguins and show that the IOP is significantly affected by locations. This result can be attributed to the harsh climatic conditions of the Antarctic Peninsula that change very quickly. The described data may help diagnose clinical pathological findings in Pygoscelis penguins. The STT and rebound tonometry appears to be safe and reproducible methods in Pygoscelis penguins, as the results were obtained quickly and were well tolerated by the birds. Based on our results, we propose that similar studies can be initiated in crowded colonies of three penguin species of this genus on the Antarctic Peninsula, the southern Shetland Islands, and other frequently visited islands in Antarctica.en_US
dc.description.sponsorshipPresidency of The Republic of Turkey - Ministry of Industry and Technologyen_US
dc.description.sponsorshipThis study was conducted under the auspices of the Presidency of The Republic of Turkey, supported by the Ministry of Industry and Technology, and coordinated by the Polar Research Centre (PolReC) of Istanbul Technical University (ITU). The authors would like to thank the Chilean Antarctic Institute (INACHInstituto Antartico Chileno) and Chilean officials, specifically the INACH Project team led by Dr. Rafael Medina, also including Dr. Victor Neira Ramirez, Ph.D. student Gonzalo Barriga, and graduate student Felipe Berrios, for their valuable assistance during the fieldwork. The authors extend their special thanks to Dr. Jose Retamales for enabling access to the excellent working facilities in Chile and Antarctica.en_US
dc.identifier.doi10.1186/s12917-023-03794-y
dc.identifier.issn1746-6148
dc.identifier.issue1en_US
dc.identifier.pmid37946185en_US
dc.identifier.scopus2-s2.0-85176152485en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1186/s12917-023-03794-y
dc.identifier.urihttps://hdl.handle.net/20.500.12483/10694
dc.identifier.volume19en_US
dc.identifier.wosWOS:001103053600001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherBmcen_US
dc.relation.ispartofBmc Veterinary Researchen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectIntraocular pressureen_US
dc.subjectPygoscelis penguinsen_US
dc.subjectRebound tonometryen_US
dc.subjectSchirmer's tear testen_US
dc.subjectTear productionen_US
dc.subjectTonovet (R)en_US
dc.titleDetermination of reference values for tear production and intraocular pressure in Pygoscelis penguins of the Antarctic Peninsulaen_US
dc.typeConference Objecten_US

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