{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T03:30:07Z","timestamp":1789615807063,"version":"build-2803163510"},"reference-count":89,"publisher":"MDPI AG","issue":"23","license":[{"start":{"date-parts":[[2023,11,27]],"date-time":"2023-11-27T00:00:00Z","timestamp":1701043200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>In patients with portal hypertension, there are many complications including cardiovascular abnormalities, hepatorenal syndrome, ascites, variceal bleeding, and hepatic encephalopathy. The underlying mechanisms are not yet completely clarified. It is well known that portal hypertension causes mesenteric congestion which produces reactive oxygen species (ROS). ROS has been associated with intestinal mucosal injury, increased intestinal permeability, enhanced gut bacterial overgrowth, and translocation; all these changes result in increased endotoxin and inflammation. Portal hypertension also results in the development of collateral circulation and reduces liver mass resulting in an overall increase in endotoxin\/bacteria bypassing detoxication and immune clearance in the liver. Endotoxemia can in turn aggravate oxidative stress and inflammation, leading to a cycle of gut barrier dysfunction \u2192 endotoxemia \u2192 organ injury. The phenotype of cardiovascular abnormalities includes hyperdynamic circulation and cirrhotic cardiomyopathy. Oxidative stress is often accompanied by inflammation; thus, blocking oxidative stress can minimize the systemic inflammatory response and alleviate the severity of cardiovascular diseases. The present review aims to elucidate the role of oxidative stress in cirrhosis-associated cardiovascular abnormalities and discusses possible therapeutic effects of antioxidants on cardiovascular complications of cirrhosis including hyperdynamic circulation, cirrhotic cardiomyopathy, and hepatorenal syndrome.<\/jats:p>","DOI":"10.3390\/ijms242316805","type":"journal-article","created":{"date-parts":[[2023,11,27]],"date-time":"2023-11-27T03:33:56Z","timestamp":1701056036000},"page":"16805","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Oxidative Mechanisms and Cardiovascular Abnormalities of Cirrhosis and Portal Hypertension"],"prefix":"10.3390","volume":"24","author":[{"given":"Hongqun","family":"Liu","sequence":"first","affiliation":[{"name":"Liver Unit, University of Calgary Cumming School of Medicine, Calgary, AB T2N 4N1, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Henry H.","family":"Nguyen","sequence":"additional","affiliation":[{"name":"Liver Unit, University of Calgary Cumming School of Medicine, Calgary, AB T2N 4N1, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2750-9379","authenticated-orcid":false,"given":"Sang Youn","family":"Hwang","sequence":"additional","affiliation":[{"name":"Liver Unit, University of Calgary Cumming School of Medicine, Calgary, AB T2N 4N1, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4431-272X","authenticated-orcid":false,"given":"Samuel S.","family":"Lee","sequence":"additional","affiliation":[{"name":"Liver Unit, University of Calgary Cumming School of Medicine, Calgary, AB T2N 4N1, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,11,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Salete-Granado, D., Carbonell, C., Puertas-Miranda, D., Vega-Rodriguez, V.J., Garcia-Macia, M., Herrero, A.B., and Marcos, M. 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