{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,10]],"date-time":"2026-04-10T06:19:00Z","timestamp":1775801940625,"version":"3.50.1"},"reference-count":27,"publisher":"American Physiological Society","issue":"6","funder":[{"DOI":"10.13039\/501100003074","name":"Ministry of Science, Technology and Productive Innovation, Argentina | Agencia Nacional de Promoci\u00f3n Cient\u00edfica y Tecnol\u00f3gica (National Agency for Science and Technology, Argentina)","doi-asserted-by":"publisher","award":["PICT 2795"],"award-info":[{"award-number":["PICT 2795"]}],"id":[{"id":"10.13039\/501100003074","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Universidad de Buenos Aires, Argentina","award":["UBACyT 20020130100557BA"],"award-info":[{"award-number":["UBACyT 20020130100557BA"]}]},{"DOI":"10.13039\/501100002923","name":"Consejo Nacional de Investigaciones Cient\u00edficas y T\u00e9cnicas (National Scientific and Technical Research Council)","doi-asserted-by":"publisher","award":["PIP 2014\/012"],"award-info":[{"award-number":["PIP 2014\/012"]}],"id":[{"id":"10.13039\/501100002923","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["American Journal of Physiology-Heart and Circulatory Physiology"],"published-print":{"date-parts":[[2018,6,1]]},"abstract":"<jats:p> Vagal stimulation (VS) during myocardial ischemia and reperfusion has beneficial effects. However, it is not known whether short-term VS applied before ischemia or at the onset of reperfusion protects the ischemic myocardium. This study was designed to determine whether short-term VS applied before ischemia or at the onset of reperfusion reduces myocardial infarct size (IS), mimicking classic preconditioning and postconditioning. A second objective was to study the participation of muscarinic and nicotinic receptors in the protection of both preischemic and reperfusion stimulation. FVB mice were subjected to 30 min of regional myocardial ischemia followed by 2 h of reperfusion without VS, with 10-min preischemic VS (pVS), or with VS during the first 10 min of reperfusion (rVS). pVS reduced IS, and this effect was abolished by atropine and wortmannin. rVS also reduced IS in a similar manner, and this effect was abolished by the \u03b1<jats:sub>7<\/jats:sub>-nicotinic acetylcholine receptor blocker methyllycaconitine. pVS increased Akt and glycogen synthase kinase (GSK)-3\u03b2 phosphorylation. No changes in Akt and GSK-3\u03b2 phosphorylation were observed in rVS. Stimulation-mediated IS protection was abolished with the JAK2 blocker AG490. rVS did not modify IL-6 and IL-10 levels in the plasma or myocardium. Splenic denervation and splenectomy did not abolish the protective effect of rVS. In conclusion, pVS and rVS reduced IS by different mechanisms: pVS activated the Akt\/GSK-3\u03b2 muscarinic pathway, whereas rVS activated \u03b1<jats:sub>7<\/jats:sub>-nicotinic acetylcholine receptors and JAK2, independently of the cholinergic anti-inflammatory pathway. <\/jats:p><jats:p> NEW &amp; NOTEWORTHY Our data suggest, for the first time, that vagal stimulation applied briefly either before ischemia or at the beginning of reperfusion mimics classic preconditioning and postconditioning and reduces myocardial infarction, activating different mechanisms. We also infer an important role of \u03b1<jats:sub>7<\/jats:sub>-nicotinic receptors for myocardial protection independent of the cholinergic anti-inflammatory pathway. <\/jats:p>","DOI":"10.1152\/ajpheart.00286.2017","type":"journal-article","created":{"date-parts":[[2018,4,6]],"date-time":"2018-04-06T15:51:41Z","timestamp":1523029901000},"page":"H1289-H1297","source":"Crossref","is-referenced-by-count":33,"title":["Vagal stimulation mimics preconditioning and postconditioning of ischemic myocardium in mice by activating different protection mechanisms"],"prefix":"10.1152","volume":"314","author":[{"given":"Bruno","family":"Buchholz","sequence":"first","affiliation":[{"name":"Universidad de Buenos Aires, Facultad de Medicina, Departamento de Patolog\u00eda, Instituto de Fisiopatolog\u00eda Cardiovascular, Buenos Aires, Argentina"},{"name":"Universidad de Buenos Aires, Consejo Nacional de Investigaciones Cient\u00edficas y T\u00e9cnicas, Instituto de Bioqu\u00edmica y Medicina 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A.","family":"Bernaten\u00e9","sequence":"additional","affiliation":[{"name":"Universidad de Buenos Aires, Facultad de Medicina, Departamento de Patolog\u00eda, Instituto de Fisiopatolog\u00eda Cardiovascular, Buenos Aires, Argentina"},{"name":"Universidad de Buenos Aires, Consejo Nacional de Investigaciones Cient\u00edficas y T\u00e9cnicas, Instituto de Bioqu\u00edmica y Medicina Molecular, Facultad de Medicina, Buenos Aires, Argentina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nahuel","family":"M\u00e9ndez Diodati","sequence":"additional","affiliation":[{"name":"Universidad de Buenos Aires, Facultad de Medicina, Departamento de Patolog\u00eda, Instituto de Fisiopatolog\u00eda Cardiovascular, Buenos Aires, Argentina"},{"name":"Universidad de Buenos Aires, Consejo Nacional de Investigaciones Cient\u00edficas y T\u00e9cnicas, Instituto de Bioqu\u00edmica y Medicina Molecular, Facultad de Medicina, Buenos Aires, 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