{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,23]],"date-time":"2026-04-23T14:34:45Z","timestamp":1776954885356,"version":"3.51.4"},"reference-count":63,"publisher":"MDPI AG","issue":"22","license":[{"start":{"date-parts":[[2022,11,8]],"date-time":"2022-11-08T00:00:00Z","timestamp":1667865600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003710","name":"Ministry of Health &amp; Welfare, Republic of Korea","doi-asserted-by":"publisher","award":["HF20C0212"],"award-info":[{"award-number":["HF20C0212"]}],"id":[{"id":"10.13039\/501100003710","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003710","name":"Ministry of Health &amp; Welfare, Republic of Korea","doi-asserted-by":"publisher","award":["HF21C0061"],"award-info":[{"award-number":["HF21C0061"]}],"id":[{"id":"10.13039\/501100003710","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>The liver is vulnerable to oxidative attacks from heavy metals, such as iron, as well as some drugs, including acetaminophen. It has been shown that enhanced oxidative stress in the liver leads to excessive ROS production and mitochondrial dysfunction, resulting in organ injury. The beneficial effects of Spatholobi Caulis (SC), a natural herbal medicine, include treating ischemic stroke, inhibiting tumor cell invasion, pro-angiogenic activities, and anti-inflammatory properties. Scientific studies on its effects against hepatotoxic reagents (e.g., iron and acetaminophen), as well as their underlying mechanisms, are insufficient. This study examined the antioxidant effects and mechanisms of SC in vitro and in vivo. In cells, the proinflammatory mediator, arachidonic acid (AA), plus iron, significantly induced an increase in ROS generation, the damage in mitochondrial membrane potential, and the resulting apoptosis, which were markedly blocked by SC. More importantly, SC affected the activation of AMP-activated protein kinase (AMPK)-related proteins, which were vital to regulating oxidative stress in cells. In addition, SC mediated the expression of Yes-associated protein (YAP)-related proteins. Among the active compounds in SC, the procyanidin B2, but not liquiritigenin, daidzein, and genistein, significantly inhibited the cytotoxicity induced by AA + iron, and activated the LKB1-AMPK pathway. In mice, the oral administration of SC alleviated the elevations of ALT and histological changes by the acetaminophen-induced liver injury. These results reveal the potential of SC and a key bioactive component, procyanidin B2, as antioxidant candidates for hepatoprotection.<\/jats:p>","DOI":"10.3390\/ijms232213730","type":"journal-article","created":{"date-parts":[[2022,11,8]],"date-time":"2022-11-08T11:56:36Z","timestamp":1667908596000},"page":"13730","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Coordination of AMPK and YAP by Spatholobi Caulis and Procyanidin B2 Provides Antioxidant Effects In Vitro and In Vivo"],"prefix":"10.3390","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8884-7940","authenticated-orcid":false,"given":"Su-Jin","family":"Bae","sequence":"first","affiliation":[{"name":"School of Korean Medicine, Dongguk University, Gyeongju 38066, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Seon Been","family":"Bak","sequence":"additional","affiliation":[{"name":"School of Korean Medicine, Dongguk University, Gyeongju 38066, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3323-7106","authenticated-orcid":false,"given":"Young Woo","family":"Kim","sequence":"additional","affiliation":[{"name":"School of Korean Medicine, Dongguk University, Gyeongju 38066, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,11,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"4472","DOI":"10.3390\/ijms20184472","article-title":"Inflammaging and Oxidative Stress in Human Diseases: From Molecular Mechanisms to Novel Treatments","volume":"20","author":"Zuo","year":"2019","journal-title":"Int. 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