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Aqueous humor erythropoietin levels in open-angle glaucoma patients with and without TTR V30M familial amyloid polyneuropathy

dc.contributor.authorBeirão, João
dc.contributor.authorMoreira, L.
dc.contributor.authorOliveira, J.
dc.contributor.authorMenéres, M.
dc.contributor.authorPessoa, Bernardete
dc.contributor.authorMatos, M.
dc.contributor.authorCosta, P.
dc.contributor.authorTorres, P.
dc.contributor.authorBeirão, I.
dc.date.accessioned2015-10-26T12:34:15Z
dc.date.available2015-10-26T12:34:15Z
dc.date.issued2014
dc.description.abstractPurpose: Glaucoma is the leading cause of irreversible blindness in familial amyloidotic polyneuropathy (FAP) patients. Erythropoietin (EPO) is a cytokine that has been shown to play a role in neuroprotection and is endogenously produced in the eye. EPO levels in the aqueous humor are increased in eyes with glaucoma. In this study, we evaluated the EPO concentration in the aqueous humor of FAP and non-FAP patients, with and without glaucoma. Methods: Undiluted aqueous humor samples were obtained from 42 eyes that underwent glaucoma surgery, phacoemulsification, or vitrectomy. EPO concentration in the aqueous humor and blood were measured using the Immulite 2000 Xpi using an automatic analyzer (Siemens Healthcare Diagnostics). Results: The mean EPO concentration in the aqueous humor of non-FAP glaucoma eyes group 2 (75.73±13.25 mU/ml) was significantly higher than non-FAP cataract eyes (17.22±5.33 mU/ml; p<0.001), FAP glaucoma eyes (18.82±10.16 mU/ml; p<0.001), and FAP nonglaucoma eyes (20.62±6.22 mU/ml; p<0.001). There was no statistically significant difference between FAP nonglaucoma eyes versus non-FAP cataract eyes (p = 0.23) and FAP glaucoma eyes versus FAP nonglaucoma eyes (p = 0.29). In the glaucoma groups, there was no correlation between the aqueous humor EPO concentration and the ocular pressure (p = 0.95) and mean deviation (p = 0.41). There was no correlation between the EPO serum concentration and EPO aqueous humor concentration in our patients (p = 0.77). Conclusions: Unlike other glaucomatous patients, FAP patients with glaucoma do not show increased and potentially neuroprotective endocular EPO production in the aqueous humor and may need more aggressive glaucoma management.pt_PT
dc.identifier.citationMolecular Vision 2014; 20:970-976pt_PT
dc.identifier.issn1090-0535
dc.identifier.urihttp://hdl.handle.net/10400.16/1862
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAtlanta Ga : Molecular Visionpt_PT
dc.relation.publisherversionhttp://www.molvis.org/molvis/v20/970/pt_PT
dc.titleAqueous humor erythropoietin levels in open-angle glaucoma patients with and without TTR V30M familial amyloid polyneuropathypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceUnited States of Americapt_PT
oaire.citation.endPage976pt_PT
oaire.citation.startPage970pt_PT
oaire.citation.titleMolecular Visionpt_PT
oaire.citation.volume20pt_PT
person.familyNameBeirão
person.familyNamePessoa
person.givenNameJoão Nuno Melo
person.givenNameBernardete
person.identifier.ciencia-id0214-5233-EE9D
person.identifier.ciencia-id0E1B-7EB2-B90F
person.identifier.orcid0000-0001-8642-7010
person.identifier.orcid0000-0002-5673-1561
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication03b98348-ce82-4043-bb58-db089fcc21d6
relation.isAuthorOfPublicationfa0e3b13-5da3-4f74-a184-22358fc19d38
relation.isAuthorOfPublication.latestForDiscoveryfa0e3b13-5da3-4f74-a184-22358fc19d38

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