Acute and post-acute neuromodulation induces stroke recovery by promoting survival signaling, neurogenesis, and pyramidal tract plasticity

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dc.contributor.authorÇağlayan, Ahmet Burak
dc.contributor.authorBeker, Mustafa Çağlar
dc.contributor.authorÇağlayan, Berrak
dc.contributor.authorYalçın, Esra
dc.contributor.authorÇağlayan, Aysun
dc.contributor.authorYuluğ, Burak
dc.contributor.authorKılıç, Ertuğrul
dc.date.accessioned2021-02-19T21:16:11Z
dc.date.available2021-02-19T21:16:11Z
dc.date.issued2019
dc.departmentALKÜ
dc.descriptionKilic, Ertugrul/0000-0001-6494-8923; Kutlu, Selim/0000-0001-9257-4797; Yalcin, Esra/0000-0002-1064-7989; Caglayan, Berrak/0000-0002-5072-132X; Beker, Mustafa/0000-0002-9476-8488; caglayan, ahmet burak/0000-0002-6242-3709
dc.description.abstractRepetitive transcranial magnetic stimulation (rTMS) has gained interest as a non-invasive treatment for stroke based on the data promoting its effects on functional recovery. However, the exact action mechanisms by which the rTMS exert beneficial effects in cellular and molecular aspect are largely unknown. To elucidate the effects of high- and low-frequency rTMS in the acute-ischemic brain, we examined how rTMS influences injury development, cerebral blood flow (CBF), DNA fragmentation, neuronal survival, pro- and anti-apoptotic protein activations after 30 and 90 min of focal cerebral ischemia. In addition, inflammation, angiogenesis, growth factors and axonal outgrowth related gene expressions, were analyzed. Furthermore, we have investigated the effects of rTMS on post-acute ischemic brain, particularly on spontaneous locomotor activity, perilesional tissue remodeling, axonal sprouting of corticobulbar tracts, glial scar formation and cell proliferation, in which rTMS was applied starting 3 days after the stroke onset for 28 days. In the high-frequency rTMS received animals reduced DNA fragmentation, infarct volume and improved CBF were observed, which were associated with increased Bcl-xL activity and reduced Bax, caspase-1, and caspase-3 activations. Moreover, increased angiogenesis, growth factors; and reduced inflammation and axonal sprouting related gene expressions were observed. These results correlated with reduced microglial activation, neuronal degeneration, glial scar formation and improved functional recovery, tissue remodeling, contralesional pyramidal tract plasticity and neurogenesis in the subacute rTMS treated animals. Overall, we propose that high-frequency rTMS in stroke patients can be used to promote functional recovery by inducing the endogenous repair and recovery mechanisms of the brain.
dc.description.sponsorshipTurkish Academy of Sciences (TUBA)Turkish Academy of Sciences; Necmettin Erbakan UniversityNecmettin Erbakan University [161318006]
dc.description.sponsorshipThis work was funded by Turkish Academy of Sciences (TUBA) and Necmettin Erbakan University (Scientific Research Project No. 161318006).
dc.identifier.doi10.3389/fncel.2019.00144
dc.identifier.issn1662-5102
dc.identifier.pmid31031599
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.3389/fncel.2019.00144
dc.identifier.urihttps://hdl.handle.net/20.500.12868/298
dc.identifier.volume13en_US
dc.identifier.wosWOS:000464493200003
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthor0-belirlenecek
dc.language.isoen
dc.publisherFrontiers Media Sa
dc.relation.ispartofFrontiers In Cellular Neuroscience
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectneurodegeneration
dc.subjectapoptosis
dc.subjecttissue remodeling
dc.subjectrTMS
dc.subjectcerebral ischemia
dc.titleAcute and post-acute neuromodulation induces stroke recovery by promoting survival signaling, neurogenesis, and pyramidal tract plasticity
dc.typeArticle

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