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Li X, Lao R, Lei J, Chen Y, Zhou Q, Wang T, Tong Y. Natural Products for Acetaminophen-Induced Acute Liver Injury: A Review. Molecules 2023; 28:7901. [PMID: 38067630 PMCID: PMC10708418 DOI: 10.3390/molecules28237901] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/07/2023] [Accepted: 11/23/2023] [Indexed: 12/18/2023] Open
Abstract
The liver plays a vital role in metabolism, synthesis, and detoxification, but it is susceptible to damage from various factors such as viral infections, drug reactions, excessive alcohol consumption, and autoimmune diseases. This susceptibility is particularly problematic for patients requiring medication, as drug-induced liver injury often leads to underestimation, misdiagnosis, and difficulties in treatment. Acetaminophen (APAP) is a widely used and safe drug in therapeutic doses but can cause liver toxicity when taken in excessive amounts. This study aimed to investigate the hepatotoxicity of APAP and explore potential treatment strategies using a mouse model of APAP-induced liver injury. The study involved the evaluation of various natural products for their therapeutic potential. The findings revealed that natural products demonstrated promising hepatoprotective effects, potentially alleviating liver damage and improving liver function through various mechanisms such as oxidative stress and inflammation, which cause changes in signaling pathways. These results underscore the importance of exploring novel treatment options for drug-induced liver injury, suggesting that further research in this area could lead to the development of effective preventive and therapeutic interventions, ultimately benefiting patients with liver injury caused by medicine.
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Affiliation(s)
- Xiaoyangzi Li
- School of Medicine, Taizhou University, Taizhou 318000, China; (X.L.); (R.L.); (J.L.)
| | - Ruyang Lao
- School of Medicine, Taizhou University, Taizhou 318000, China; (X.L.); (R.L.); (J.L.)
| | - Jiawei Lei
- School of Medicine, Taizhou University, Taizhou 318000, China; (X.L.); (R.L.); (J.L.)
| | - Yuting Chen
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian 116000, China;
| | - Qi Zhou
- School of Pharmacy, Taizhou University, Taizhou 318000, China;
| | - Ting Wang
- School of Medicine, Taizhou University, Taizhou 318000, China; (X.L.); (R.L.); (J.L.)
| | - Yingpeng Tong
- School of Pharmacy, Taizhou University, Taizhou 318000, China;
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Miao X, Jin C, Liu J, Wang J, Chen Y. Honokiol attenuates acetaminophen-induced acute liver injury by inhibiting hepatic CYP1A2 activity and improving liver mitochondrial dysfunction. CHINESE HERBAL MEDICINES 2023. [DOI: 10.1016/j.chmed.2023.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023] Open
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Cai X, Hua S, Deng J, Du Z, Zhang D, Liu Z, Khan NU, Zhou M, Chen Z. Astaxanthin Activated the Nrf2/HO-1 Pathway to Enhance Autophagy and Inhibit Ferroptosis, Ameliorating Acetaminophen-Induced Liver Injury. ACS APPLIED MATERIALS & INTERFACES 2022; 14:42887-42903. [PMID: 36094079 DOI: 10.1021/acsami.2c10506] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Acetaminophen (APAP)-induced liver injury (AILI) is a common liver disease in clinical practice. Only one clinically approved drug, N-acetylcysteine (NAC), for the treatment of AILI is available in clinics, but novel treatment strategies are still needed due to the complicated pathological changes of AILI and the side effects of NAC. Here, we found that astaxanthin (ASX) can prevent AILI through the Nrf2/HO-1 pathway. After treatment with ASX, there was a positive activation of the Nrf2/HO-1 pathway in AILI models both in vivo and in vitro accompanied by enhanced autophagy and reduced ferroptosis. In APAP-challenged L02 liver cells, ASX reduced autophagy and enhanced apoptosis of the cells. Furthermore, we developed ASX-loaded hollow mesoporous silica nanoparticles (HMSN@ASX) to improve the aqueous solubility of ASX and targeted delivery of ASX to the liver and then significantly improve the therapeutic effects. Taken together, we found that ASX can protect against AILI by activating the Nrf2/HO-1 pathway, which mainly affects oxidative stress, autophagy, and ferroptosis processes, and the HMSN@ASX nanosystem can target the liver to enhance the treatment efficiency of AILI.
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Affiliation(s)
- Xiaopeng Cai
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou310003, China
| | - Shiyuan Hua
- Institute of Translational Medicine, Zhejiang University, Hangzhou310009, China
| | - Jingwen Deng
- Department of Pathology, Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou310058, China
- Women's Hospital, Zhejiang University School of Medicine, Hangzhou310058, China
| | - Zhen Du
- Institute of Translational Medicine, Zhejiang University, Hangzhou310009, China
| | - Dongxiao Zhang
- Institute of Translational Medicine, Zhejiang University, Hangzhou310009, China
| | - Zhenfeng Liu
- Institute of Translational Medicine, Zhejiang University, Hangzhou310009, China
| | - Nazif Ullah Khan
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou310003, China
| | - Min Zhou
- Institute of Translational Medicine, Zhejiang University, Hangzhou310009, China
- Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou310009, China
- Cancer Center, Zhejiang University, Hangzhou310058, China
| | - Zhi Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou310003, China
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Hepatoprotection of Paederia scandens (Lour.) Merr. on Acetaminophen-Related Hepatic Injury Rats by 1H-NMR-Based Metabonomics Coupled with Network Pharmacology. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:1375864. [PMID: 36045664 PMCID: PMC9423956 DOI: 10.1155/2022/1375864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 07/28/2022] [Accepted: 07/30/2022] [Indexed: 11/18/2022]
Abstract
Background Acetaminophen-related hepatic injury (ARHI) is a kind of acute hepatic injury caused by overdosing acetaminophen, which is mainly related to toxic metabolite production, oxidative stress, and mitochondrial dysfunction. The extract of Paederia scandens (Lour.) Merr. (PSM) has the abilities of anti-inflammatory, antivirus, and antioxidation. Research studies showed that PSM could improve acute or chronic hepatic injury, while the mechanism of which is still indistinct. Methods Here, the authors applied the approach based on serum metabonomics combined with network pharmacology to study the protection of PSM on ARHI rats. Results 10 serum potential biomarkers were found to be closely related to ARHI by metabonomics, while 3 compounds (L-ascorbyl 2,6-dipalmitate, squalene, and tributyl O-acetylcitrate) and 3 targets (NOS2, MAOB, and PDE3A) were found that might be the potential active components and active site of PSM on treating ARHI by network pharmacology analysis. Furthermore, molecular biology strategy was performed to validate whether iNOS/NF-κB signaling pathway is the potential mechanism of PSM treating ARHI. Conclusions This study indicated that PSM could ameliorate ARHI by iNOS/NF-κB signaling pathway. During ARHI treatment by PSM, L-ascorbyl 2, 6-dipalmitate, squalene, and tributyl O-acetylcitrate might be the potential active components, while the possible active site might be NOS2, MAOB, and PDE3A.
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Zheng Y, Lei L, Liang S, Ai J, Deng X, Li YQ, Zhang TP, Pu SB, Ren YS. Protective Effect of Fresh/Dry Dandelion Extracts on APAP-Overdose-Induced Acute Liver Injury. Chin J Integr Med 2022; 28:683-692. [PMID: 34816363 DOI: 10.1007/s11655-021-3295-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/23/2020] [Indexed: 10/19/2022]
Abstract
OBJECITVIE To compare the liver protective activity of fresh/dried dandelion extracts against acetaminophen (APAP)-induced hepatotoxicity. METHODS Totally 90 Kunming mice were randomly divided into 10 groups according to body weight (9 mice for each group). The mice in the normal control and model (vehicle control) groups were administered sodium carboxymethyl cellulose (CMC-Na, 0.5%) only. Administration groups were pretreated with high and low-dose dry dandelion extract (1,000 or 500 g fresh herb dried and then decocted into 120 mL solution, DDE-H and DDE-L); low-, medium- and high-dose dandelion juice (250, 500, 1,000 g/120 mL, DJ-L, DJ-M, and DJ-H); fresh dandelions evaporation juice water (120 mL, DEJW); dry dandelion extract dissolved by pure water (1 kg/120 mL, DDED-PW); dry dandelion extract dissolved by DEJW (120 g/120 mL, DDED-DEJW) by oral gavage for 7 days at the dosage of 0.5 mL solution/10 g body weight; after that, except normal control group, all other groups were intraperitonealy injected with 350 mg/kg APAP to induce liver injury. Twenty hours after APAP administration, serum and liver tissue were collected and serum alanine aminotransferase (AST), aspartate transaminase (ALT), alkaline phosphatase (AKP), malondialdehyde (MDA), glutathione (GSH), superoxide dismutase (SOD) activities were quantified by biochemical kits; tumor necrosis factor (TNF-α), interleukin (IL)-2, and IL-1 β contents in liver tissue were determined by enzyme linked immunosorbent assay kits. Histopathological changes in liver tissues were observed by hematoxylin and eosin staining; TUNEL Assay and Hoechst 33258 staining were applied for cell apoptosis evaluation. The expressions of heme oxygenase-1 (HO-1), nuclear factor erythroid-2-related factor 2 (Nrf-2), caspase-9, B-cell leukemia/lymphoma 2 (Bcl-2), Bax and p-JNK were determined by Western blot analysis. RESULTS Pretreatment with fresh dandelion juice (FDJ, including DJ-L, DJ-M, DJ-H, DEJW and DDED-DEJW) significantly decreased the levels of serum ALT, AST, AKP, TNF-α and IL-1β compared with vehicle control group (P<0.05 or P<0.01). Additionally, compared with the vehicle control group, FDJ decreased the levels of hepatic MDA and restored GSH levels and SOD activity in livers (P<0.05 or P<0.01). FDJ inhibited the overexpression of pro-inflammatory factors including cyclooxygenase-2 and inducible nitric oxide synthase in the liver tissues (P<0.05 or P<0.01). Furthermore, Western blot analysis revealed that FDJ pretreatment inhibited activation of apoptotic signaling pathways via decreasing of Bax, and caspase-9 and JNK protein expression, and inhibited activation of JNK pathway (P<0.05 or P<0.01). Liver histopathological observation provided further evidence that FDJ pretreatment significantly inhibited APAP-induced hepatocyte necrosis, inflammatory cell infiltration and congestion. CONCLUSIONS FDJ pretreatment protects against APAP-induced hepatic injury by activating the Nrf-2/HO-1 pathway and inhibition of the intrinsic apoptosis pathway, and the effect of fresh dandelion extracts was superior to dried dandelion extracts in APAP hepatotoxicity model mice.
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Affiliation(s)
- Yao Zheng
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China
| | - Lei Lei
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China
| | - Shuai Liang
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China
| | - Jiao Ai
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China
| | - Xin Deng
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China
| | - Yan-Qiu Li
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China
| | - Tian-Pei Zhang
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China
| | - Shi-Biao Pu
- College of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Yong-Shen Ren
- School of Pharmaceutical Science, South-Central University for Nationalities, Wuhan, 430074, China.
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Zhang J, Li M, Zhao T, Cao J, Liu Y, Wang Y, Wang Y, Cheng G. E Se tea alleviates acetaminophen-induced liver injury by activating the Nrf2 signaling pathway. Food Funct 2022; 13:7240-7250. [PMID: 35723070 DOI: 10.1039/d1fo02491d] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
E Se tea is a traditional herbal tea used in the prevention of liver diseases. However, the hepatoprotective effect of E Se tea has not been investigated. This study aimed to determine the protective effect of E Se tea on acetaminophen (APAP)-induced acute liver injury and its potential mechanism. Hot water extracts and aqueous-ethanol extracts of E Se tea were obtained, which were analyzed to determine the chemical constituents of the tea. Phlorizin and phloretin were found to be the dominant chemical compounds. Histopathological analysis showed that E Se tea extract inhibited APAP-induced inflammatory infiltration, necrosis, and cellular vacuolization of hepatocytes in the liver tissue. The E Se tea extract could significantly ameliorate liver injury, inhibit an inflammatory response, and reduce oxidative stress. Western blot analysis revealed that E Se tea extract upregulated the expressions of nuclear Nrf2, HO-1 and NQO1 proteins and downregulated the expressions of cytoplasmic Nrf2 and Keap1 proteins in the hepatocyte. qPCR results showed that E Se tea extract also increased the expression of antioxidant genes (SOD2, Gpx1, GCLC and GCLM). These findings exhibited that E Se tea, enriched in dihydrochalcones, can be used to effectively prevent and manage liver dysfunction.
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Affiliation(s)
- Jinke Zhang
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China.
| | - Mengcheng Li
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China.
| | - Tianrui Zhao
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China.
| | - Jianxin Cao
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China.
| | - Yaping Liu
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China.
| | - Yongpeng Wang
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China.
| | - Yifen Wang
- Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, China.
| | - Guiguang Cheng
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China.
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Wu P, Ben T, Zou H, Chen Y. PARAFAC modeling of dandelion phenolic compound fluorescence relation to antioxidant properties. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2022. [PMCID: PMC9013982 DOI: 10.1007/s11694-022-01389-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The phenolic compounds in dandelion were extracted using different ethanol percentage solutions, identified with HPLC-MS, and their scavenging capabilities of DPPH, ABTS and OH radicals were determined. Then the excitation-emission matrix fluorescence spectroscopy coupled with parallel factor analysis (PARAFAC) was conveyed to analyze the relationship between phenolics, components scores of PARAFAC model and antioxidant capacities, based on linear regression method. The results showed that the relative content of chicoric acid, esculetin, caffeic acid, gallic acid monohydrate, eupatilin, caffeic acid-3-glucoside, corchorifatty acid F, and luteolin was higher than 0.5%, and the extraction solutions with 100% and 75% water had a better scavenging capacity of DPPH, ABTS and OH radicals. Two components PARAFAC model was identified with the comparatively higher sum of squares, core consistency values, and lower interactions numbers, and the established equations indicated the component scores had a linear regression relationship with antioxidant capacities of DPPH, and ABTS. The paper was proposed for the first time that the component scores of PARAFAC model might be treated as a useful indication for antioxidant capacity evaluation.
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Affiliation(s)
- Ping Wu
- Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, No.61, Daizong Road, Taian, 271018 Shandong China
| | - Tingting Ben
- Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, No.61, Daizong Road, Taian, 271018 Shandong China
| | - Hui Zou
- Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, No.61, Daizong Road, Taian, 271018 Shandong China
| | - Yilun Chen
- Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, No.61, Daizong Road, Taian, 271018 Shandong China
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Zhang Y, Hu YF, Li W, Xu GY, Wang KR, Li L, Luo H, Zou L, Wu JS. Updates and advances on pharmacological properties of Taraxacum mongolicum Hand.-Mazz and its potential applications. Food Chem 2021; 373:131380. [PMID: 34710697 DOI: 10.1016/j.foodchem.2021.131380] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 08/22/2021] [Accepted: 09/02/2021] [Indexed: 02/06/2023]
Abstract
As a well-recognized dietary and medicinal plant, Taraxacum mongolicum Hand.-Mazz (TMHM) has been used for making wines, candies, energy drinks, and other functional foods. The TMHM contains a diverse range of active phytoconstituents, including flavonoids, triterpenoids, phenolic acids, sesquiterpene lactones, pigments, coumarins and sterols. Recent pharmacological evidence has revealed multiple biological effects of TMHM, including anti-inflammatory, antioxidant, antibacterial, and gastric-protective effects, which contribute to the ameliorative effects of TMHM on inflammation-associated diseases, constipation, gastric disorders, empyrosis, hyperlipidemia, and swollen carbuncles. Although recent advances have highlighted the potential of TMHM to be applied in the clinical practice, food, and nutraceutical industry, the mechanistic understanding and systematic information on TMHM are still scarce. Here, in this timeline review, we have attempted to compile literary documents on pharmacological potential of TMHM concerning its chemical composition, biological activities, toxicity, and pharmacokinetics to promote further researches on clinical and therapeutic potential of TMHM and its food/nutraceutical applications.
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Affiliation(s)
- Yan Zhang
- School of Preclinical Medicine, Chengdu University, Chengdu 610106, China
| | - Ying-Fan Hu
- School of Preclinical Medicine, Chengdu University, Chengdu 610106, China
| | - Wei Li
- School of Preclinical Medicine, Chengdu University, Chengdu 610106, China
| | - Guang-Ya Xu
- School of Preclinical Medicine, Chengdu University, Chengdu 610106, China
| | - Kun-Rong Wang
- School of Preclinical Medicine, Chengdu University, Chengdu 610106, China
| | - Lin Li
- School of Preclinical Medicine, Chengdu University, Chengdu 610106, China
| | - Hao Luo
- School of Preclinical Medicine, Chengdu University, Chengdu 610106, China
| | - Liang Zou
- Key Laboratory of Coarse Cereal Processing of Ministry, Agriculture and Rural Affairs, Sichuan Engineering & Technology Research Center of Coarse Cereal Industrialization, School of Food and Biological Engineering, Chengdu University, Chengdu 610106, China.
| | - Jia-Si Wu
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
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Mega A, Marzi L, Kob M, Piccin A, Floreani A. Food and Nutrition in the Pathogenesis of Liver Damage. Nutrients 2021; 13:nu13041326. [PMID: 33923822 PMCID: PMC8073814 DOI: 10.3390/nu13041326] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 04/10/2021] [Accepted: 04/12/2021] [Indexed: 11/19/2022] Open
Abstract
The liver is an important organ and plays a key role in the regulation of metabolism and in the secretion, storage, and detoxification of endogenous and exogenous substances. The impact of food and nutrition on the pathophysiological mechanisms of liver injury represents a great controversy. Several environmental factors including food and micronutrients are involved in the pathogenesis of liver damage. Conversely, some xenobiotics and micronutrients have been recognized to have a protective effect in several liver diseases. This paper offers an overview of the current knowledge on the role of xenobiotics and micronutrients in liver damage.
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Affiliation(s)
- Andrea Mega
- Gastroenterology Department, Bolzano Regional Hospital, 39100 Bolzano, Italy;
- Correspondence:
| | - Luca Marzi
- Gastroenterology Department, Bolzano Regional Hospital, 39100 Bolzano, Italy;
| | - Michael Kob
- Dietetics and Clinical Nutrition Unit, Bolzano Regional Hospital, 39100 Bolzano, Italy;
| | - Andrea Piccin
- Northern Ireland Blood Transfusion Service, Belfast BT9 7TS, UK;
- Department of Internal Medicine V, Medical University of Innsbruck, A-6020 Innsbruck, Austria
- Department of Industrial Engineering, University of Trento, 38100 Trento, Italy
| | - Annarosa Floreani
- Scientific Institute for Research, Hospitalization and Healthcare, 37024 Negrar-Verona, Italy;
- Department Surgery, Oncology and Gastroenterology, University of Padova, 35128 Padova, Italy
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Betulinic Acid Alleviates Spleen Oxidative Damage Induced by Acute Intraperitoneal Exposure to T-2 Toxin by Activating Nrf2 and Inhibiting MAPK Signaling Pathways. Antioxidants (Basel) 2021; 10:antiox10020158. [PMID: 33499152 PMCID: PMC7912660 DOI: 10.3390/antiox10020158] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 01/17/2021] [Accepted: 01/18/2021] [Indexed: 12/17/2022] Open
Abstract
T-2 toxin, which is mainly produced by specific strains of Fusarium in nature, can induce immunotoxicity and oxidative stress, resulting in immune organ dysfunction and apoptosis. Betulinic acid (BA), a pentacyclic triterpenoids from nature plants, has been demonstrated to possess immunomodulating and antioxidative bioactivities. The purpose of the study was to explore the effect of BA on T-2 toxin-challenged spleen oxidative damage and further elucidate the underlying mechanism. We found that BA not only ameliorated the contents of serum total cholesterol (TC) and triglyceride (TG) but also restored the number of lymphocytes in T-2 toxin-induced mice. BA dose-dependently reduced the accumulation of reactive oxygen species (ROS), enhanced superoxide dismutase (SOD) activity, and decreased malondialdehyde (MDA) content, as well as increased the total antioxidant capacity (T-AOC) in the spleen of T-2-toxin-exposed mice. Moreover, BA reduced inflammatory cell infiltration in the spleen, improved the morphology of mitochondria and enriched the number of organelles in splenocytes, and dramatically attenuated T-2 toxin-triggered splenocyte apoptosis. Furthermore, administration of BA alleviated the protein phosphorylation of p38, c-Jun N-terminal kinase (JNK), and extracellular signal-regulated kinases (ERK); decreased the protein expression of kelch-like erythroid cell-derived protein with CNC homology [ECH]-associated protein1 (Keap1); and increased the protein expression of nuclear factor erythroid 2 [NF-E2]-related factor (Nrf2) and heme oxygenase-1 (HO-1) in the spleen. These findings demonstrate that BA defends against spleen oxidative damage associated with T-2 toxin injection by decreasing ROS accumulation and activating the Nrf2 signaling pathway, as well as inhibiting the mitogen-activated protein kinase (MAPK) signaling pathway.
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(+)-Clausenamide protects against drug-induced liver injury by inhibiting hepatocyte ferroptosis. Cell Death Dis 2020; 11:781. [PMID: 32951003 PMCID: PMC7502081 DOI: 10.1038/s41419-020-02961-5] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 08/13/2020] [Accepted: 08/27/2020] [Indexed: 02/06/2023]
Abstract
Drug-induced liver injury is the major cause of acute liver failure. However, the underlying mechanisms seem to be multifaceted and remain poorly understood, resulting in few effective therapies. Here, we report a novel mechanism that contributes to acetaminophen-induced hepatotoxicity through the induction of ferroptosis, a distinctive form of programmed cell death. We subsequently identified therapies protective against acetaminophen-induced liver damage and found that (+)-clausenamide ((+)-CLA), an active alkaloid isolated from the leaves of Clausena lansium (Lour.) Skeels, inhibited acetaminophen-induced hepatocyte ferroptosis both in vivo and in vitro. Consistently, (+)-CLA significantly alleviated acetaminophen-induced or erastin-induced hepatic pathological damages, hepatic dysfunctions and excessive production of lipid peroxidation both in cultured hepatic cell lines and mouse liver. Furthermore, treatment with (+)-CLA reduced the mRNA level of prostaglandin endoperoxide synthase 2 while it increased the protein level of glutathione peroxidase 4 in hepatocytes and mouse liver, confirming that the inhibition of ferroptosis contributes to the protective effect of (+)-CLA on drug-induced liver damage. We further revealed that (+)-CLA specifically reacted with the Cys-151 residue of Keap1, which blocked Nrf2 ubiquitylation and resulted in an increased Nrf2 stability, thereby leading to the activation of the Keap1–Nrf2 pathway to prevent drug-induced hepatocyte ferroptosis. Our studies illustrate the innovative mechanisms of acetaminophen-induced liver damage and present a novel intervention strategy to treat drug overdose by using (+)-CLA.
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Dandelion Extract Alleviated Lipopolysaccharide-Induced Oxidative Stress through the Nrf2 Pathway in Bovine Mammary Epithelial Cells. Toxins (Basel) 2020; 12:toxins12080496. [PMID: 32752301 PMCID: PMC7472369 DOI: 10.3390/toxins12080496] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/30/2020] [Accepted: 07/31/2020] [Indexed: 02/07/2023] Open
Abstract
In practical dairy production, cows are frequently subjected to inflammatory diseases, such as high-grain diet-induced subacute ruminal acidosis (SARA) as well as mastitis and metritis. Under the circumstances, lipopolysaccharide (LPS) induces oxidative stress within the cow and in the mammary epithelial cells. It has implications in practical production to alleviate oxidative stress and to optimize the lactational function of the mammary epithelial cells. This study thus aimed to investigate the antioxidative effects of dandelion aqueous extract (DAE) on LPS-induced oxidative stress and the mechanism of DAE as an antioxidant to alleviate oxidative stress through the nuclear factor erythroid 2-related factor 2 (Nrf2) pathway in the bovine mammary epithelial cell line MAC-T cells. The cells were cultured for 48 h in six treatments including control (without LPS and DAE), LPS (100 ng/mL), DAE10 (100 ng/mL LPS and 10 μg/mL DAE), DAE50 (100 ng/mL LPS and 50 μg/mL DAE), DAE100 (100 ng/mL LPS and 100 μg/mL DAE), and DAE200 (100 ng/mL LPS and 200 μg/mL DAE), respectively. The results showed that cell viability was reduced by LPS, and the adverse effect of LPS was suppressed with the supplementation of DAE. Lipopolysaccharide-induced oxidative stress through enhancing reactive oxygen species (ROS) production, resulted in increases in oxidative damage marker concentrations, while 10 and 50 μg/mL DAE alleviated the LPS-induced oxidative stress via scavenging cellular ROS and improving antioxidant enzyme activity. The upregulation of antioxidative gene expression in DAE treatments was promoted through activating the Nrf2 signaling pathway, with DAE at a concentration of 50 μg/mL exhibiting the highest effect. Overall, DAE acted as an effective antioxidant to inhibit LPS-induced oxidative stress and as a potential inducer of the Nrf2 signaling pathway.
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