dc.creatorHazell
dc.creatorAlan S.; Afadlal
dc.creatorSzeifoul; Cheresh
dc.creatorDavid A.; Azar
dc.creatorAshraf
dc.date2017
dc.datemar
dc.date2017-11-13T13:56:25Z
dc.date2017-11-13T13:56:25Z
dc.date.accessioned2018-03-29T06:09:45Z
dc.date.available2018-03-29T06:09:45Z
dc.identifierNeuroscience Letters. Elsevier Ireland Ltd, v. 642, p. 163 - 167, 2017.
dc.identifier0304-3940
dc.identifier1872-7972
dc.identifierWOS:000397356300028
dc.identifier10.1016/j.neulet.2017.01.041
dc.identifierhttp://www-sciencedirect-com.ez88.periodicos.capes.gov.br/science/article/pii/S0304394017300617?via%3Dihub
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/329849
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1366874
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionRecent clinical trials suggest that patients with myelofibrosis can develop Wernicke's encephalopathy (WE) when treated with fedratinib, a specific Janus kinase-2 (JAK-2) inhibitor. To investigate this issue, we have examined (1) if fedratinib can produce or alter the course of this disorder, (2) its effects on thiamine dependent enzyme activity and thiamine status, and (3) its influence on the uptake of thiamine. Animals administered fedratinib for 28 days at a comparable dose used to treat human cases of myelofibrosis showed no evidence of clinical signs of thiamine deficiency (TD). Rats treated with a combination of fedratinib and TD exhibited no neurological differences in their progress to the symptomatic stage when compared to thiamine-deficient animals only. Treatment with the JAK-2 inhibitor did not compromise erythrocyte transketolase activity, and thiamine status was not affected in a major way unlike animals with TD. In addition, treatment of cultured astrocytes with fedratinib did not diminish the uptake of thiamine into these cells. Our findings suggest that treatment with fedratinib does not lead to or alter the progress of TD, and do not support the notion that administration of this JAK-2 inhibitor directly results in the development of WE due to inhibition of thiamine transport. Known adverse effects of fedratinib involving compromised gastrointestinal function may be an important indirect contributing factor to previously reported cases of WE in patients with myelofibrosis. (C) 2017 Elsevier B.V. All rights reserved.
dc.description642
dc.description163
dc.description167
dc.descriptionFundacao de Amparo a Pesquisa do Estado de Sao Paulo
dc.descriptionCanadian Institutes of Health Research
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageEnglish
dc.publisherElsevier Ireland LTD
dc.publisherClare
dc.relationNeuroscience Letters
dc.rightsfechado
dc.sourceWOS
dc.subjectVitamin B1
dc.subjectThiamine Deficiency
dc.subjectMyelofibrosis
dc.subjectAstrocyte
dc.subjectNeurodegeneration
dc.subjectExcitotoxicity
dc.titleTreatment Of Rats With The Jak-2 Inhibitor Fedratinib Does Not Lead To Experimental Wernicke's Encephalopathy
dc.typeArtículos de revistas


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