{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,9]],"date-time":"2026-10-09T15:29:34Z","timestamp":1791559774431,"version":"4.3.4"},"reference-count":34,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"6","license":[{"start":{"date-parts":[[2015,9,1]],"date-time":"2015-09-01T00:00:00Z","timestamp":1441065600000},"content-version":"tdm","delay-in-days":2465,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2008,12]]},"abstract":"<jats:sec>\n            <jats:title>Abstract<\/jats:title>\n            <jats:p>\n                                 <jats:bold>Decreased cardiac contractility and \u03b2-adrenergic responsiveness have been observed in cirrhotic cardiomyopathy, but their molecular mechanisms remain unclear. To study \u03b2-adrenergic\u2013stimulated contractility and \u03b2-adrenergic gene expression patterns, 20 Wistar Kyoto rats were treated with carbon tetrachloride to induce cirrhosis and 20 rats were used as controls. Left ventricular contractility was recorded in electrically driven isolated hearts perfused at constant flow with isoproterenol (10\u221210 to 10\u22126 M). A cardiac gene expression profile was obtained using a microarray for the myocyte adrenergic pathway. The cardiac contractility maximal response to isoproterenol was significantly reduced in cirrhotic rats in comparison to control rats, whereas the half-maximal effective concentration was not different. In cirrhotic rats, cardiac gene expression analysis showed a significant overexpression of G protein alpha\u2013inhibiting subunit 2 (G\u03b1i2), cyclic nucleotide phosphodiesterase (PDE2a), regulator of G-protein signaling 2 (RGS2), and down-expression of adenylate cyclase (Adcy3). These results indicate that overexpression of G\u03b1i2, PDE2a, and RGS2 down-regulates the \u03b2-adrenergic signaling pathway, thus contributing to the pathogenesis of cirrhotic cardiomyopathy. (Hepatology 2008;48:1913-1923.)<\/jats:bold>\n                              <\/jats:p>\n          <\/jats:sec>","DOI":"10.1002\/hep.22533","type":"journal-article","created":{"date-parts":[[2008,7,21]],"date-time":"2008-07-21T20:57:17Z","timestamp":1216673837000},"page":"1913-1923","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":33,"title":["An abnormal gene expression of the \u03b2-adrenergic system contributes to the pathogenesis of cardiomyopathy in cirrhotic rats"],"prefix":"10.1097","volume":"48","author":[{"given":"Giulio","family":"Ceolotto","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Italia","family":"Papparella","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Antonietta","family":"Sticca","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sergio","family":"Bova","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maurizio","family":"Cavalli","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gabriella","family":"Cargnelli","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrea","family":"Semplicini","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Angelo","family":"Gatta","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paolo","family":"Angeli","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","reference":[{"key":"R1-21-20241201","doi-asserted-by":"crossref","first-page":"786","DOI":"10.1080\/003655201750313289","article-title":"Cardiovascular dysfunction in cirrhosis. 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