{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,14]],"date-time":"2026-09-14T21:41:13Z","timestamp":1789422073847,"version":"build-2803163510"},"reference-count":33,"publisher":"World Scientific Pub Co Pte Ltd","issue":"08","funder":[{"name":"the Major Scientific Projects of Wuxi Municipal Healthy Commission","award":["Z202105"],"award-info":[{"award-number":["Z202105"]}]},{"name":"the Science and Technology Development Fund Project of Wuxi","award":["K20221065"],"award-info":[{"award-number":["K20221065"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Am. J. Chin. Med."],"published-print":{"date-parts":[[2023,1]]},"abstract":"<jats:p> Hemorrhagic shock (HS) is the leading cause of death in trauma patients. Inflammation following HS can lead to cardiac damage. Pachymic acid (PA), a triterpenoid extracted from Poria cocos, has been found to possess various biological activities, including anti-inflammatory and anti-apoptotic properties. Our research aims to investigate the protective effects of PA against HS-induced heart damage and the underlying mechanisms involved. Male Sprague-Dawley rats were intraperitoneally injected with PA (7.5 or 15[Formula: see text]mg\/kg) daily for three days. Subsequently, we created a rat model of HS by drawing blood through a catheter inserted into the femoral artery followed by resuscitation. The results revealed that HS led to abnormalities in hemodynamics, serum cardiac enzyme levels, and cardiac structure, as well as induced cardiac apoptosis. However, pretreatment with PA effectively alleviated these effects. PA-pretreatment also suppressed mRNA and protein levels of interleukin (IL)-1[Formula: see text], IL-6, and tumor necrosis factor [Formula: see text] (TNF-[Formula: see text]) in the heart tissues of HS rats. Additionally, PA-pretreatment reduced inflammatory cell infiltration and M1 macrophage polarization while exaggerating M2 polarization in HS rat hearts. The study observed a decreased proportion of the expression of of M1 macrophages (CD86[Formula: see text]) and their marker (iNOS), along with an increased proportion of the expression of M2 macrophages (CD206[Formula: see text]) and their marker (Arg-1). Notably, PA-pretreatment suppressed NF-[Formula: see text]B pathway activation via inhibiting NF-[Formula: see text]B p65 phosphorylation and its nuclear translocation. In conclusion, PA-pretreatment ameliorates HS-induced cardiac injury, potentially through its inhibition of the NF-[Formula: see text]B pathway. Therefore, PA treatment holds promise as a strategy for mitigating cardiac damage in HS. <\/jats:p>","DOI":"10.1142\/s0192415x23500921","type":"journal-article","created":{"date-parts":[[2023,10,22]],"date-time":"2023-10-22T09:08:05Z","timestamp":1697965685000},"page":"2157-2173","source":"Crossref","is-referenced-by-count":13,"title":["Pachymic Acid Prevents Hemorrhagic Shock-Induced Cardiac Injury by Suppressing M1 Macrophage Polarization and NF-\u03baB Signaling Pathway"],"prefix":"10.1142","volume":"51","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8768-3312","authenticated-orcid":false,"given":"Zhenfeng","family":"Liu","sequence":"first","affiliation":[{"name":"Department of Traditional Chinese Medicine, Wuxi 9th People\u2019s Hospital Affiliated to Soochow University Wuxi, Jiangsu 214000, P. R. 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