Carvacrol alleviates ischemia reperfusion injury by regulating the PI3K-Akt pathway in rats.
Liver ischemia reperfusion (I/R) injury is a common pathophysiological process in many clinical settings. Carvacrol, a food additive commonly used in essential oils, has displayed antimicrobials, antitumor and antidepressant-like activities. In the present study, we investigated the protective effec...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2014-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC4118998?pdf=render |
| _version_ | 1811281440991608832 |
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| author | Lida Suo Kai Kang Xun Wang Yonggang Cao Haifeng Zhao Xueying Sun Liquan Tong Feng Zhang |
| author_facet | Lida Suo Kai Kang Xun Wang Yonggang Cao Haifeng Zhao Xueying Sun Liquan Tong Feng Zhang |
| author_sort | Lida Suo |
| collection | DOAJ |
| description | Liver ischemia reperfusion (I/R) injury is a common pathophysiological process in many clinical settings. Carvacrol, a food additive commonly used in essential oils, has displayed antimicrobials, antitumor and antidepressant-like activities. In the present study, we investigated the protective effects of carvacrol on I/R injury in the Wistar rat livers and an in vitro hypoxia/restoration (H/R) model.The hepatoportal vein, hepatic arterial and hepatic duct of Wistar rats were isolated and clamped for 30 min, followed by a 2 h reperfusion. Buffalo rat liver (BRL) cells were incubated under hypoxia for 4 h, followed normoxic conditions for 10 h to establish the H/R model in vitro. Liver injury was evaluated by measuring serum levels of alanine aminotransferase (ALT) and aspatate aminotransferase (AST), and hepatic levels of superoxide dismutase (SOD), catalase (CAT), glutathione (GSH) and malondiadehyde (MDA), and hepatic histology and TUNEL staining. MTT assay, flow cytometric analysis and Hoechst 33258 staining were used to evaluate the proliferation and apoptosis of BRL cells in vitro. Protein expression was examined by Western Blot analysis.Carvacrol protected against I/R-induced liver damage, evidenced by significantly reducing the serum levels of ALT and AST, histological alterations and apoptosis of liver cells in I/R rats. Carvacrol exhibited anti-oxidative activity in the I/R rats, reflected by significantly reducing the activity of SOD and the content of MDA, and restoring the activity of CAT and the content of GSH, in I/R rats. In the in vitro assays, carvacrol restored the viability and inhibited the apoptosis of BRL cells, which were subjected to a mimic I/R injury induced by hypoxia. In the investigation on molecular mechanisms, carvacrol downregulated the expression of Bax and upregulated the expression of Bcl-2, thus inhibited the activation of caspase-3. Carvacrol was also shown to enhance the phosphorylation of Akt.The results suggest that carvacrol could alleviate I/R-induced liver injury by its anti-oxidative and anti-apoptotic activities, and warrant a further investigation for using carvacrol to protect I/R injury in clinic. |
| first_indexed | 2024-04-13T01:33:41Z |
| format | Article |
| id | doaj.art-eef377693e5c40b5ba392d669de3af52 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-04-13T01:33:41Z |
| publishDate | 2014-01-01 |
| publisher | Public Library of Science (PLoS) |
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| spelling | doaj.art-eef377693e5c40b5ba392d669de3af522022-12-22T03:08:27ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0198e10404310.1371/journal.pone.0104043Carvacrol alleviates ischemia reperfusion injury by regulating the PI3K-Akt pathway in rats.Lida SuoKai KangXun WangYonggang CaoHaifeng ZhaoXueying SunLiquan TongFeng ZhangLiver ischemia reperfusion (I/R) injury is a common pathophysiological process in many clinical settings. Carvacrol, a food additive commonly used in essential oils, has displayed antimicrobials, antitumor and antidepressant-like activities. In the present study, we investigated the protective effects of carvacrol on I/R injury in the Wistar rat livers and an in vitro hypoxia/restoration (H/R) model.The hepatoportal vein, hepatic arterial and hepatic duct of Wistar rats were isolated and clamped for 30 min, followed by a 2 h reperfusion. Buffalo rat liver (BRL) cells were incubated under hypoxia for 4 h, followed normoxic conditions for 10 h to establish the H/R model in vitro. Liver injury was evaluated by measuring serum levels of alanine aminotransferase (ALT) and aspatate aminotransferase (AST), and hepatic levels of superoxide dismutase (SOD), catalase (CAT), glutathione (GSH) and malondiadehyde (MDA), and hepatic histology and TUNEL staining. MTT assay, flow cytometric analysis and Hoechst 33258 staining were used to evaluate the proliferation and apoptosis of BRL cells in vitro. Protein expression was examined by Western Blot analysis.Carvacrol protected against I/R-induced liver damage, evidenced by significantly reducing the serum levels of ALT and AST, histological alterations and apoptosis of liver cells in I/R rats. Carvacrol exhibited anti-oxidative activity in the I/R rats, reflected by significantly reducing the activity of SOD and the content of MDA, and restoring the activity of CAT and the content of GSH, in I/R rats. In the in vitro assays, carvacrol restored the viability and inhibited the apoptosis of BRL cells, which were subjected to a mimic I/R injury induced by hypoxia. In the investigation on molecular mechanisms, carvacrol downregulated the expression of Bax and upregulated the expression of Bcl-2, thus inhibited the activation of caspase-3. Carvacrol was also shown to enhance the phosphorylation of Akt.The results suggest that carvacrol could alleviate I/R-induced liver injury by its anti-oxidative and anti-apoptotic activities, and warrant a further investigation for using carvacrol to protect I/R injury in clinic.http://europepmc.org/articles/PMC4118998?pdf=render |
| spellingShingle | Lida Suo Kai Kang Xun Wang Yonggang Cao Haifeng Zhao Xueying Sun Liquan Tong Feng Zhang Carvacrol alleviates ischemia reperfusion injury by regulating the PI3K-Akt pathway in rats. PLoS ONE |
| title | Carvacrol alleviates ischemia reperfusion injury by regulating the PI3K-Akt pathway in rats. |
| title_full | Carvacrol alleviates ischemia reperfusion injury by regulating the PI3K-Akt pathway in rats. |
| title_fullStr | Carvacrol alleviates ischemia reperfusion injury by regulating the PI3K-Akt pathway in rats. |
| title_full_unstemmed | Carvacrol alleviates ischemia reperfusion injury by regulating the PI3K-Akt pathway in rats. |
| title_short | Carvacrol alleviates ischemia reperfusion injury by regulating the PI3K-Akt pathway in rats. |
| title_sort | carvacrol alleviates ischemia reperfusion injury by regulating the pi3k akt pathway in rats |
| url | http://europepmc.org/articles/PMC4118998?pdf=render |
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