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Ma J, Ma Y, Yi J, Lei P, Fang Y, Wang L, Liu F, Luo L, Zhang K, Jin L, Yang Q, Sun D, Zhang C, Wu D. Rapid altitude displacement induce zebrafish appearing acute high altitude illness symptoms. Heliyon 2024; 10:e28429. [PMID: 38590888 PMCID: PMC10999933 DOI: 10.1016/j.heliyon.2024.e28429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 03/17/2024] [Accepted: 03/19/2024] [Indexed: 04/10/2024] Open
Abstract
Rapid ascent to high-altitude areas above 2500 m often leads to acute high altitude illness (AHAI), posing significant health risks. Current models for AHAI research are limited in their ability to accurately simulate the high-altitude environment for drug screening. Addressing this gap, a novel static self-assembled water vacuum transparent chamber was developed to induce AHAI in zebrafish. This study identified 6000 m for 2 h as the optimal condition for AHAI induction in zebrafish. Under these conditions, notable behavioral changes including slow movement, abnormal exploration behavior and static behavior in the Novel tank test. Furthermore, this model demonstrated changes in oxidative stress-related markers included increased levels of malondialdehyde, decreased levels of glutathione, decreased activities of superoxide dismutase and catalase, and increased levels of inflammatory markers IL-6, IL-1β and TNF-α, and inflammatory cell infiltration and mild edema in the gill tissue, mirroring the clinical pathophysiology observed in AHAI patients. This innovative zebrafish model not only offers a more accurate representation of the high-altitude environment but also provides a high-throughput platform for AHAI drug discovery and pathogenesis research.
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Affiliation(s)
- Jiahui Ma
- Institute of Life Sciences & Biomedical Collaborative Innovation Center of Zhejiang Province, Wenzhou University, Wenzhou, 325000, China
- National and Local Joint Engineering Research Center of Ecological Treatment Technology of Urban Water Pollution, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China
| | - Yilei Ma
- Institute of Life Sciences & Biomedical Collaborative Innovation Center of Zhejiang Province, Wenzhou University, Wenzhou, 325000, China
| | - Jia Yi
- Institute of Life Sciences & Biomedical Collaborative Innovation Center of Zhejiang Province, Wenzhou University, Wenzhou, 325000, China
| | - Pengyu Lei
- Institute of Life Sciences & Biomedical Collaborative Innovation Center of Zhejiang Province, Wenzhou University, Wenzhou, 325000, China
| | - Yimeng Fang
- Institute of Life Sciences & Biomedical Collaborative Innovation Center of Zhejiang Province, Wenzhou University, Wenzhou, 325000, China
| | - Lei Wang
- Institute of Life Sciences & Biomedical Collaborative Innovation Center of Zhejiang Province, Wenzhou University, Wenzhou, 325000, China
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 325000, China
| | - Fan Liu
- Institute of Life Sciences & Biomedical Collaborative Innovation Center of Zhejiang Province, Wenzhou University, Wenzhou, 325000, China
| | - Li Luo
- Affiliated Dongguang Hospital, Southern Medical University, Dongguang, 523059, China
| | - Kun Zhang
- Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Libo Jin
- Institute of Life Sciences & Biomedical Collaborative Innovation Center of Zhejiang Province, Wenzhou University, Wenzhou, 325000, China
| | - Qinsi Yang
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 325000, China
| | - Da Sun
- Institute of Life Sciences & Biomedical Collaborative Innovation Center of Zhejiang Province, Wenzhou University, Wenzhou, 325000, China
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325000, China
| | - Chi Zhang
- Department of Clinical Translational Research, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325200, China
| | - Dejun Wu
- Emergency Department, Quzhou People's Hospital, Quzhou, 324000, China
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Chen H, Chen C, Qin Y, Wang L, Zheng J, Gao F. Protective effects of epigallocatechin-3-gallate counteracting the chronic hypobaric hypoxia-induced myocardial injury in plain-grown rats at high altitude. Cell Stress Chaperones 2023; 28:921-933. [PMID: 37875765 PMCID: PMC10746658 DOI: 10.1007/s12192-023-01386-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 07/11/2023] [Accepted: 10/02/2023] [Indexed: 10/26/2023] Open
Abstract
Exposure to hypobaric hypoxia (HH) environment causes stress to the body, especially the oxygen-consuming organs. Chronic HH conditions have adverse effects on the myocardium. Thus, we conducted this experiment and aim to evaluate such adverse effects and explore the therapeutic role of epigallocatechin-3-gallate (EGCG) in rats' heart under chronic HH conditions. For that purpose, we transported rats from plain to a real HH environment at high altitude for establishing the HH model. At high altitude, animals were treated with EGCG while the salidroside was used as the positive control. General physiological data were collected, and routine blood test results were analyzed. Cardiac magnetic resonance (CMR) was examined to assess the structural and functional changes of the heart. Serum levels of cardiac enzymes and pro-inflammatory cytokines were examined. Oxidative markers in the left ventricle (LV) were detected. Additionally, ultrastructural and histopathological changes and apoptosis of the LV were assessed. Furthermore, the antioxidant stress-relevant proteins nuclear factor E2-related factor 2 (Nrf2) and the heme oxygenase-1 (HO-1) were detected. The experiment revealed that EGCG treatment decreased HH-induced elevation of cardiac enzymes and relieved mitochondrial damage of the LV. Notably, EGCG treatment significantly alleviated oxidative stress in the LV and inflammatory response in the blood. Western blot confirmed that EGCG significantly upregulated Nrf2 and HO-1. Therefore, EGCG may be considered a promising natural compound for treating the HH-induced myocardial injuries.
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Affiliation(s)
- Haotian Chen
- Department of Radiology, West China Hospital, Sichuan University, No. 37 Guoxue Road, Chengdu, 610041, China
| | - Chen Chen
- Department of Radiology, West China Hospital, Sichuan University, No. 37 Guoxue Road, Chengdu, 610041, China
| | - Yuhui Qin
- Department of Radiology, West China Hospital, Sichuan University, No. 37 Guoxue Road, Chengdu, 610041, China
| | - Lei Wang
- Department of Radiology, West China Hospital, Sichuan University, No. 37 Guoxue Road, Chengdu, 610041, China
| | - Jie Zheng
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Fabao Gao
- Department of Radiology, West China Hospital, Sichuan University, No. 37 Guoxue Road, Chengdu, 610041, China.
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Li L, Lin L, Wen B, Zhao PC, Liu DS, Pang GM, Wang ZR, Tan Y, Lu C. Promising Natural Medicines for the Treatment of High-Altitude Illness. High Alt Med Biol 2023; 24:175-185. [PMID: 37504973 PMCID: PMC10516238 DOI: 10.1089/ham.2022.0139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 06/27/2023] [Indexed: 07/29/2023] Open
Abstract
Li Li, Lin Lin, Bo Wen, Peng-cheng Zhao, Da-sheng Liu, Guo-ming Pang, Zi-rong Wang, Yong Tan, and Cheng Lu. Promising natural medicines for the treatment of high-altitude illness. High Alt Med Biol. 24:175-185, 2023.-High-altitude illness (HAI) is a dangerous disease characterized by oxidative stress, inflammatory damage and hemodynamic changes in the body that can lead to severe damage to the lungs, heart, and brain. Natural medicines are widely known for their multiple active ingredients and pharmacological effects, which may be important in the treatment of HAI. In this review, we outline the specific types of HAI and the underlying pathological mechanisms and summarize the currently documented natural medicines applied in the treatment of acute mountain sickness and high-altitude cerebral edema, high-altitude pulmonary edema, chronic mountain sickness, and high-altitude pulmonary hypertension. Their sources, types, and medicinal sites are summarized, and their active ingredients, pharmacological effects, related mechanisms, and potential toxicity are discussed. In conclusion, natural medicines, as an acceptable complementary and alternative strategy with fewer side effects and more long-term application, can provide a reference for developing more natural antialtitude sickness medicines in the future and have good application prospects in HAI treatment.
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Affiliation(s)
- Li Li
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Lin Lin
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Bo Wen
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Peng-cheng Zhao
- School of Life Science, Northwestern Polytechnical University, Xi'an, China
| | - Da-sheng Liu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Guo-ming Pang
- Kaifeng Traditional Chinese Medicine Hospital, Kaifeng, China
| | - Zi-rong Wang
- Logistics Support Division, National Immigration Administration, Beijing, China
| | - Yong Tan
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Cheng Lu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
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Chen G, Zhang L, Van Schepdael A, Wang X. Recent Advances in Activation of Endothelial Nitric Oxide Synthase by Natural Products: An Effects and Mechanisms Review. FOOD REVIEWS INTERNATIONAL 2023. [DOI: 10.1080/87559129.2023.2166061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Guangxuan Chen
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Le Zhang
- Department of Chemistry, University of Missouri, Columbia, Missouri, USA
| | - Ann Van Schepdael
- Department of Pharmaceutical and Pharmacological Sciences, Pharmaceutical Analysis, KU Leuven - University of Leuven, Leuven, Belgium
| | - Xu Wang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
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Dong T, Liu H, Sha Y, Sun L. A Comparative Study of Phytochemical Metabolites and Antioxidant Properties of Rhodiola. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Xie N, Fan F, Jiang S, Hou Y, Zhang Y, Cairang N, Wang X, Meng X. Rhodiola crenulate alleviates hypobaric hypoxia-induced brain injury via adjusting NF-κB/NLRP3-mediated inflammation. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 103:154240. [PMID: 35691080 DOI: 10.1016/j.phymed.2022.154240] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/15/2022] [Accepted: 06/02/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Rhodiola crenulate (R. crenulate), a famous Tibetan medicine, has been demonstrated to possess superiorly protective effects in high-altitude hypoxic brain injury (HHBI). However, its mechanisms on HHBI are still largely unknown. METHODS Herein, the protective effects and underlying mechanisms of R. crenulate on HHBI of BABL/c mice were explored through in vivo experiments. The mice model of HHBI was established using an animal hypobaric and hypoxic chamber. R. crenulate extract (RCE) (0.5, 1.0 and 2.0 g/kg) was given by gavage for 7 days. Pathological changes and neuronal viability of mice hippocampus and cortex were evaluated using H&E and Nissl staining, respectively. The brain water content (BWC) in mice was determined by calculating the ratio of dry to wet weight of brain tissue. And serum of malondialdehyde (MDA), superoxide dismutase (SOD), glutathione (GSH-Px) and lactate dehydrogenase (LDH) were detected via commercial biochemical kits. Synchronously, the contents of total antioxidant capacity (T-AOC), lactic acid (LA), adenosine triphosphate (ATP), succinate dehydrogenase (SDH), pyruvate kinase (PK), Ca2+-Mg2+-ATPcase, Na+-K+-ATPcase, TNF-α, IL-1β and IL-6 in brain tissue were quantitative analysis by corresponding ELISA assay. Subsequently, NLRP3, ZO-1, claudin-5, occluding, p-p65, p65, ASC, cleaved-caspase-1, caspase-1 and IL-18 were determined by immunofluorescent and western blot analyses. RESULTS The results demonstrated that RCE remarkably alleviated pathological damage, BWC, as well enhanced neuronal viability. Furthermore, the oxidative stress injuries were reversely abrogated after RCE treatment, evidenced by the increases of SOD, GSH-Px and T-AOC, while the decreases of MDA and LDH contents. Marvelously, the administration of RCE rectified and balanced the abnormal energy metabolism via elevating the levels of ATP, SDH, PK, Ca2+-Mg2+-ATPcase and Na+-K+-ATPcase, and lowering LA. Simultaneously, the expression of tight junction proteins (ZO-1, claudin-5 and occludin) was enhanced, illustrating RCE treatment might maintain the integrity of blood-brain barrier (BBB). Additionally, RCE treatment confined the contents of IL-6, IL-1β and TNF-α, and attenuated fluorescent signal of NLRP3 protein. Concurrently, the results of western blot indicated that RCE treatment dramatically restrained p-p65/p65, ASC, NLRP3, cleaved-caspase-1/caspase-1 and IL-18 protein expressions in brain tissues of mice. CONCLUSION RCE may afford a protectively intervention in HHBI of mice through suppressing the oxidative stress, improving energy metabolism and the integrity of BBB, and subsiding inflammatory responses via the NF-κB/NLRP3 signaling pathway. As a promising agent for the treatment of mice HHBI, the deep-crossing molecular mechanisms of R. crenulate still needs to be further elucidated to identify novel core hub targets.
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Affiliation(s)
- Na Xie
- School of Pharmacy, and Research Institute of Integrated TCM & Western Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Fangfang Fan
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Shengnan Jiang
- School of Pharmacy, and Research Institute of Integrated TCM & Western Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Ya Hou
- School of Pharmacy, and Research Institute of Integrated TCM & Western Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Yi Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | | | - Xiaobo Wang
- School of Pharmacy, and Research Institute of Integrated TCM & Western Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Xianli Meng
- School of Pharmacy, and Research Institute of Integrated TCM & Western Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
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Protective Effect of Brassica rapa Polysaccharide against Acute High-Altitude Hypoxia-Induced Brain Injury and Its Metabolomics. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022. [DOI: 10.1155/2022/3063899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Brassica rapa L., a traditional Tibetan medicine, has been wildly used for treating plateau disease. Polysaccharide is an important chemical component in B. rapa. The present study aimed to evaluate the effect of B. rapa polysaccharide (BRP) against acute high-altitude hypoxia (AHH) induced brain injury and its metabolic mechanism. The rats were randomly divided into six groups: control group, AHH group, Hongjingtian oral liquid group, and three BRP groups (38, 75, and 150 mg/kg/d). Serum levels of superoxide dismutase (SOD), malondialdehyde (MDA), glutathione (GSH), oxidized glutathione (GSSG), and lactate dehydrogenase (LDH) were detected by commercial biochemical kits. Hippocampus and cortex histopathological changes were observed by H&E staining and Nissl staining. Neuronal apoptosis was observed by TUNEL staining. The protein and gene expression of Caspase-3, Bax, Bcl-2, p-PI3K, PI3K, p-Akt, Akt, HIF-1α, microRNA 210, ISCU1/2, and COX10 were detected by western blotting and qRT-PCR. Then, a brain metabolomics method based on UPLC-Q-Exactive-MS was performed to discover potential biomarkers and analyze metabolic pathways. It was found that BRP decreased levels of MDA, LDH, and GSSG, increased GSH and SOD, reduced the pathological changes, inhibited apoptosis, and activated the PI3K/Akt/HIF-1α signaling pathway as evidenced by increased phosphorylation of PI3K and Akt, enhanced protein expression of HIF-1α and gene levels of microRNA210, ISCU1/2, and COX10. Furthermore, 15 endogenous potential biomarkers were identified in the brain through metabolomics analysis. BRP can regulate 7 potential biomarkers and the corresponding metabolic pathways were mainly associated with pyruvate metabolism and glycolysis/gluconeogenesis. Collectively, BRP has a clear protective effect on AHH-induced brain injury and its mechanisms may be related to ameliorate oxidative stress injury, inhibit apoptosis by activating PI3K/Akt/HIF-1α signaling pathway, and reverse metabolic pathway disturbances.
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Tian T, Zhou BW, Wu LH, Zhang F, Chou GX, Feng CG, Lin GQ. Non-targeted screening of pyranosides in Rhodiola crenulata using an all ion fragmentation-exact neutral loss strategy combined with liquid chromatography-quadrupole time-of-flight mass spectrometry. PHYTOCHEMICAL ANALYSIS : PCA 2021; 32:1039-1050. [PMID: 33779008 DOI: 10.1002/pca.3045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 02/08/2021] [Accepted: 03/03/2021] [Indexed: 06/12/2023]
Abstract
INTRODUCTION Pyranosides as one kind of natural glycosides contain a pyran ring linked to an aglycone in the structure. They occur widely in plants and possess diverse biological activities. The discovery of new pyranosides not only contributes to research on natural products but also may promote pharmaceutical development. OBJECTIVES A non-targeted liquid chromatography-quadrupole time-of-flight mass spectrometry method coupled with an all ion fragmentation-exact neutral loss (AIF-ENL) strategy was developed for the screening of pyranosides in plants. METHODS Pyranosides in various types were collected as a model. The AIF-ENL strategy comprised three steps: AIF spectrum acquisition and generation, ENL-based searching and identification, and confirmation of structural type using target second-stage mass spectrometry (MS/MS). The strategy was systematically evaluated based on the matrix effects, fragmentation stability, scan rate and screening efficiency and finally applied to Rhodiola crenulata (Hook. f. et Thoms) H. Ohba. RESULTS The method was proved to be an efficient tool for the screening of pyranosides. When it was applied to R. crenulata, a total of 24 pyranoside candidates were detected. Among them, six were tentatively identified on the basis of the agreement of their elemental composition with the reported. The other 18 were detected in R. crenulata for the first time. CONCLUSION The method offers a new platform for discovering pyranosides. In addition, the developed non-targeted strategy can also be used for other natural products, such as flavonoids and coumarins, as long as there is a common fragmentation behaviour in their MS/MS to generate characteristic neutral losses or fragments.
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Affiliation(s)
- Tian Tian
- The Research Centre of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Bo-Wen Zhou
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Li-Hong Wu
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Fang Zhang
- The Research Centre of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Gui-Xin Chou
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chen-Guo Feng
- The Research Centre of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Guo-Qiang Lin
- The Research Centre of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
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Zhao J, Zhang J, Liu Q, Wang Y, Jin Y, Yang Y, Ni C, Zhang L. Hongjingtian injection protects against myocardial ischemia reperfusion-induced apoptosis by blocking ROS induced autophagic- flux. Biomed Pharmacother 2021; 135:111205. [PMID: 33395603 DOI: 10.1016/j.biopha.2020.111205] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 12/13/2020] [Accepted: 12/26/2020] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Hongjingtian injection (HJT) has been widely used in the clinic to treat coronary heart disease in China. However, the underlying mechanisms of therapies still need to be illustrated. The present study aims to determine whether HJT protects against myocardial ischemia reperfusion injury via Reactive Oxygen Species (ROS)-induced autophagic flux and apoptosis and, if so, to explore the underlying mechanisms. METHODS In vivo myocardial protection and autophagy regulation of HJT in myocardial ischemia reperfusion injury in C57BL/6 J and CAG-RFP-EGFP-LC3 transgenic C57BL/6 J mice were investigated. In vitro, the effects of HJT on apoptosis, autophagic flux, oxidative stress and mitochondrial function were observed in H2O2-induced H9c2 cells. In addition, apoptosis-related proteins and autophagy-related proteins were assessed to explore the underlying mechanisms. RESULTS HJT significantly decreased the infarct area and cell apoptosis after myocardial ischemia reperfusion injury in C57BL/6 J mice. Autophagic flux was reduced by HJT treatment after myocardial ischemia reperfusion injury in CAG-RFP-EGFP-LC3 transgenic C57BL/6 J mice. HJT inhibited H2O2-induced cell apoptosis by significantly decreasing the levels of cleaved caspase 3 and increasing the Bcl-2/Bax ratio. HJT inhibited autophagic flux after H2O2 stimulation by significantly decreasing LC3-Ⅱ and p-AMPK expression and increasing p-mTOR. HJT inhibited ROS production and improved mitochondrial function in H2O2-induced cells by significantly increasing the mitochondrial membrane potential, intracellular ATP contents and oxygen consumption. CONCLUSION The beneficial effects of HJT in treating myocardial ischemia reperfusion are partially due to improved mitochondrial function and regulated autophagy to inhibit cell apoptosis through the AMPK/mTOR pathway.
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MESH Headings
- AMP-Activated Protein Kinases/metabolism
- Animals
- Antioxidants/pharmacology
- Apoptosis/drug effects
- Apoptosis Regulatory Proteins/metabolism
- Autophagy/drug effects
- Cell Line
- Disease Models, Animal
- Drugs, Chinese Herbal/pharmacology
- Male
- Mice, Inbred C57BL
- Mice, Transgenic
- Microtubule-Associated Proteins/genetics
- Microtubule-Associated Proteins/metabolism
- Mitochondria, Heart/drug effects
- Mitochondria, Heart/metabolism
- Mitochondria, Heart/pathology
- Myocardial Infarction/metabolism
- Myocardial Infarction/pathology
- Myocardial Infarction/prevention & control
- Myocardial Reperfusion Injury/metabolism
- Myocardial Reperfusion Injury/pathology
- Myocardial Reperfusion Injury/prevention & control
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- Oxidative Stress/drug effects
- Rats
- Reactive Oxygen Species/metabolism
- Signal Transduction
- TOR Serine-Threonine Kinases/metabolism
- Mice
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Affiliation(s)
- Jing Zhao
- Department of Cardiology of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Clinical Research Center of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Cardiovascular Key Laboratory of Zhejiang Province, China
| | - Jiwei Zhang
- The MOE Key Laboratory for Standardization of Chinese Medicine, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qian Liu
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yingchao Wang
- Pharmaceutical Imformatics Institute, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Yecheng Jin
- Pharmaceutical Department of Affiliated Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yingxin Yang
- Pharmaceutical Department of Affiliated Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Cheng Ni
- Department of Cardiology of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
| | - Ling Zhang
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China.
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Ren HH, Niu Z, Guo R, Fu M, Li HR, Zhang XY, Yao L. Rhodiola crenulata extract decreases fatty acid oxidation and autophagy to ameliorate pulmonary arterial hypertension by targeting inhibiton of acylcarnitine in rats. Chin J Nat Med 2021; 19:120-133. [PMID: 33641783 DOI: 10.1016/s1875-5364(21)60013-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Indexed: 10/22/2022]
Abstract
Pulmonary arterial hypertension (PAH) is a devastating pulmonary circulation disease lacking high-efficiency therapeutics. The present study aims to decipher the therapeutic mechanism of Rhodiola crenulata, a well-known traditional chinese medicine with cardiopulmonary protection capacity, on PAH by exploiting functional lipidomics. The rat model with PAH was successfully established for first, following Rhodiola crenulata water extract (RCE) treatment, then analysis of chemical constituents of RCE was performed, additional morphologic, hemodynamic, echocardiographic measurements were examined, further targeted lipidomics assay was performed to identify differential lipidomes, at last accordingly mechanism assay was done by combining qRT-PCR, Western blot and ELISA. Differential lipidomes were identified and characterized to differentiate the rats with PAH from healthy controls, mostly assigned to acylcarnitines, phosphatidylcholines, sphingomyelin associated with the PAH development. Excitingly, RCE administration reversed high level of decadienyl-L-carnitine by the modulation of metabolic enzyme CPT1A in mRNA and protein level in serum and lung in the rats with PAH. Furthermore, RCE was observed to reduce autophagy, confirmed by significantly inhibited PPARγ, LC3B, ATG7 and upregulated p62, and inactivated LKB1-AMPK signal pathway. Notably, we accurately identified the constituents in RCE, and delineated the therapeutic mechansim that RCE ameliorated PAH through inhibition of fatty acid oxidation and autophagy. Altogether, RCE might be a potential therapeutic medicine with multi-targets characteristics to prevent the progression of PAH. This novel findings pave a critical foundation for the use of RCE in the treatment of PAH.
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Affiliation(s)
- Huan-Huan Ren
- Department of Medicinal Chemistry and Natural Medicine Chemistry, Department of Pharmacognosy, College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Zheng Niu
- Department of Medicinal Chemistry and Natural Medicine Chemistry, Department of Pharmacognosy, College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Rui Guo
- Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Min Fu
- Department of Medicinal Chemistry and Natural Medicine Chemistry, Department of Pharmacognosy, College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Hai-Ru Li
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - Xuan-Yu Zhang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, Department of Pharmacognosy, College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Li Yao
- Department of Medicinal Chemistry and Natural Medicine Chemistry, Department of Pharmacognosy, College of Pharmacy, Harbin Medical University, Harbin 150081, China; State-Province Key Laboratory of Biomedicine-Pharmaceutics of China, Harbin Medical University, Harbin 150081, China.
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Oxidative Stress, Kinase Activity and Inflammatory Implications in Right Ventricular Hypertrophy and Heart Failure under Hypobaric Hypoxia. Int J Mol Sci 2020; 21:ijms21176421. [PMID: 32899304 PMCID: PMC7503689 DOI: 10.3390/ijms21176421] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/22/2020] [Accepted: 08/24/2020] [Indexed: 02/06/2023] Open
Abstract
High altitude (hypobaric hypoxia) triggers several mechanisms to compensate for the decrease in oxygen bioavailability. One of them is pulmonary artery vasoconstriction and its subsequent pulmonary arterial remodeling. These changes can lead to pulmonary hypertension and the development of right ventricular hypertrophy (RVH), right heart failure (RHF) and, ultimately to death. The aim of this review is to describe the most recent molecular pathways involved in the above conditions under this type of hypobaric hypoxia, including oxidative stress, inflammation, protein kinases activation and fibrosis, and the current therapeutic approaches for these conditions. This review also includes the current knowledge of long-term chronic intermittent hypobaric hypoxia. Furthermore, this review highlights the signaling pathways related to oxidative stress (Nox-derived O2.- and H2O2), protein kinase (ERK5, p38α and PKCα) activation, inflammatory molecules (IL-1β, IL-6, TNF-α and NF-kB) and hypoxia condition (HIF-1α). On the other hand, recent therapeutic approaches have focused on abolishing hypoxia-induced RVH and RHF via attenuation of oxidative stress and inflammatory (IL-1β, MCP-1, SDF-1 and CXCR-4) pathways through phytotherapy and pharmacological trials. Nevertheless, further studies are necessary.
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Tao H, Wu X, Cao J, Peng Y, Wang A, Pei J, Xiao J, Wang S, Wang Y. Rhodiola
species: A comprehensive review of traditional use, phytochemistry, pharmacology, toxicity, and clinical study. Med Res Rev 2019; 39:1779-1850. [PMID: 30652331 DOI: 10.1002/med.21564] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 11/23/2018] [Accepted: 12/31/2018] [Indexed: 02/05/2023]
Affiliation(s)
- Hongxun Tao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao; China
| | - Xu Wu
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University; Luzhou Sichuan China
| | - Jiliang Cao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao; China
| | - Yu Peng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao; China
| | - Anqi Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao; China
| | - Jin Pei
- State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Development and Utilization of Chinese Medicine Resources, College of Pharmacy, Chengdu University of Traditional Chinese Medicine; Chengdu Sichuan China
| | - Jianbo Xiao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao; China
| | - Shengpeng Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao; China
| | - Yitao Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao; China
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Hydrogen Sulfide Protects against Chemical Hypoxia-Induced Injury via Attenuation of ROS-Mediated Ca 2+ Overload and Mitochondrial Dysfunction in Human Bronchial Epithelial Cells. BIOMED RESEARCH INTERNATIONAL 2018; 2018:2070971. [PMID: 30363932 PMCID: PMC6186369 DOI: 10.1155/2018/2070971] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 09/01/2018] [Accepted: 09/10/2018] [Indexed: 11/20/2022]
Abstract
Oxidative stress induced by hypoxia/ischemia resulted in the excessive reactive oxygen species (ROS) and the relative inadequate antioxidants. As the initial barrier to environmental pollutants and allergic stimuli, airway epithelial cell is vulnerable to oxidative stress. In recent years, the antioxidant effect of hydrogen sulfide (H2S) has attracted much attention. Therefore, in this study, we explored the impact of H2S on CoCl2-induced cell injury in 16HBE14o- cells. The effect of CoCl2 on the cell viability was detected by Cell Counting Kit (CCK-8) and the level of ROS in 16HBE14o- cells in response to varying doses (100–1000 μmol/L) of CoCl2 (a common chemical mimic of hypoxia) was measured by using fluorescent probe DCFH-DA. It was shown that, in 16HBE14o- cells, CoCl2 acutely increased the ROS content in a dose-dependent manner, and the increased ROS was inhibited by the NaHS (as a donor of H2S). Moreover, the calcium ion fluorescence probe Fura-2/AM and fluorescence dye Rh123 were used to investigate the intracellular calcium concentration ([Ca2+]i) and mitochondria membrane potential (MMP) in 16HBE14o- cells, respectively. In addition, we examined apoptosis of 16HBE14o- cells with Hoechst 33342. The results showed that the CoCl2 effectively elevated the Ca2+ influx, declined the MMP, and aggravated apoptosis, which were abrogated by NaHS. These results demonstrate that H2S could attenuate CoCl2-induced hypoxia injury via reducing ROS to perform an agonistic role for the Ca2+ influx and MMP dissipation.
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14
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Role of altered proteostasis network in chronic hypobaric hypoxia induced skeletal muscle atrophy. PLoS One 2018; 13:e0204283. [PMID: 30240405 PMCID: PMC6150520 DOI: 10.1371/journal.pone.0204283] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 09/04/2018] [Indexed: 01/07/2023] Open
Abstract
Background High altitude associated hypobaric hypoxia is one of the cellular and environmental perturbation that alters proteostasis network and push the healthy cell towards loss of muscle mass. The present study has elucidated the robust proteostasis network and signaling mechanism for skeletal muscle atrophy under chronic hypobaric hypoxia (CHH). Methods Male Sprague Dawley rats were exposed to simulated hypoxia equivalent to a pressure of 282 torr for different durations (1, 3, 7 and 14 days). After CHH exposure, skeletal muscle tissue was excised from the hind limb of rats for biochemical analysis. Results Chronic hypobaric hypoxia caused a substantial increase in protein oxidation and exhibited a greater activation of ER chaperones, glucose-regulated protein-78 (GRP-78) and protein disulphide isomerase (PDI) till 14d of CHH. Presence of oxidized proteins triggered the proteolytic systems, 20S proteasome and calpain pathway which were accompanied by a marked increase in [Ca2+]. Upregulated Akt pathway was observed upto 07d of CHH which was also linked with enhanced glycogen synthase kinase-3β (GSk-3β) expression, a negative regulator of Akt. Muscle-derived cytokines, tumor necrosis factor-α (TNF-α), interferon-ϒ (IFN-©) and interleukin-1β (IL-1β) levels significantly increased from 07d onwards. CHH exposure also upregulated the expression of nuclear factor kappa-B (NF-κB) and E3 ligase, muscle atrophy F-box-1 (Mafbx-1/Atrogin-1) and MuRF-1 (muscle ring finger-1) on 07d and 14d. Further, severe hypoxia also lead to increase expression of ER-associated degradation (ERAD) CHOP/ GADD153, Ub-proteasome and apoptosis pathway. Conclusions The disrupted proteostasis network was tightly coupled to degradative pathways, altered anabolic signaling, inflammation, and apoptosis under chronic hypoxia. Severe and prolonged hypoxia exposure affected the protein homeostasis which overwhelms the muscular system and tends towards skeletal muscle atrophy.
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Chang PK, Yen IC, Tsai WC, Chang TC, Lee SY. Protective Effects of Rhodiola Crenulata Extract on Hypoxia-Induced Endothelial Damage via Regulation of AMPK and ERK Pathways. Int J Mol Sci 2018; 19:E2286. [PMID: 30081534 PMCID: PMC6121284 DOI: 10.3390/ijms19082286] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 08/01/2018] [Accepted: 08/01/2018] [Indexed: 12/22/2022] Open
Abstract
Rhodiola crenulata root extract (RCE) has been shown to possess protective activities against hypoxia both in vitro and in vivo. However, the effects of RCE on response to hypoxia in the endothelium remain unclear. In this study, we aimed to examine the effects of RCE in endothelial cells challenged with hypoxic exposure and to elucidate the underlying mechanisms. Human umbilical vein endothelial cells were pretreated with or without RCE and then exposed to hypoxia (1% O₂) for 24 h. Cell viability, nitric oxide (NO) production, oxidative stress markers, as well as mechanistic readouts were studied. We found that hypoxia-induced cell death, impaired NO production, and oxidative stress. These responses were significantly attenuated by RCE treatment and were associated with the activation of AMP-activated kinase and extracellular signal-regulated kinase 1/2 signaling pathways. In summary, we showed that RCE protected endothelial cells from hypoxic insult and suggested that R. crenulata might be useful for the prevention of hypoxia-associated vascular dysfunction.
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Affiliation(s)
- Pi-Kai Chang
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei 11490, Taiwan.
- Division of Colon and Rectal Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan.
| | - I-Chuan Yen
- School of Pharmacy, National Defense Medical Center, Taipei 11490, Taiwan.
| | - Wei-Cheng Tsai
- Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei 11490, Taiwan.
| | - Tsu-Chung Chang
- Department of Biochemistry, National Defense Medical Center, Taipei 11490, Taiwan.
| | - Shih-Yu Lee
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei 11490, Taiwan.
- Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei 11490, Taiwan.
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Rahman SU, Li Y, Huang Y, Zhu L, Feng S, Wu J, Wang X. Treatment of inflammatory bowel disease via green tea polyphenols: possible application and protective approaches. Inflammopharmacology 2018. [DOI: 10.1007/s10787-018-0462-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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17
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Lin KT, Chang TC, Lai FY, Lin CS, Chao HL, Lee SY. Rhodiola crenulata Attenuates γ-Ray Induced Cellular Injury via Modulation of Oxidative Stress in Human Skin Cells. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2018; 46:175-190. [PMID: 29298516 DOI: 10.1142/s0192415x18500106] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Skin injury is a major complication during radiation therapy and is associated with oxidative damage to skin cells. An effective and safe radioprotectant to prevent this skin damage is still unavailable. The Rhodiola crenulata root extract (RCE) has been reported to be a free radical scavenger and a potent anti-oxidant in both in vitro and in vivo models. In the current study, we investigated the effects of RCE on ionizing radiation-induced skin injury and its underlying mechanisms. HaCaT cells - a non-cancerous skin cell line together with HepG2, Caco2, A549, and OECM cancer cell lines - were pre-treated with RCE for 24[Formula: see text]h followed by exposure to 15 Gy using Caesium-137 as a γ-ray source. The cell viability was measured. In HaCaT cells, oxidative stress markers, cellular apoptosis pathways, matrix metalloproteinases (MMPs), and pro-inflammatory cytokine gene expression were studied. We found that RCE significantly protected HaCaT cells, but not cancer cells from the loss of viability induced by exposure to ionizing radiation. RCE attenuated radiation-induced oxidative stress markers, cell apoptosis, MMP levels, and expression of cytokine genes. RCE also limited the induction of p53 and p21 by radiation exposure. These findings indicate that RCE may selectively protect the skin cells from ionizing radiation without altering its ability to kill cancer cells. Therefore, we suggest that RCE or its derivatives could serve as a novel radioprotective therapy.
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Affiliation(s)
- Kuen-Tze Lin
- * Graduate Institute of Medical Sciences, Tri-Service General Hospital, Taipei, Taiwan.,† Department of Radiation Oncology, Tri-Service General Hospital, Taipei, Taiwan
| | - Tsu-Chung Chang
- ‡ Department of Biochemistry, National Defense Medical Center, Taipei, Taiwan
| | - Feng-Yi Lai
- § Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Chun-Shu Lin
- † Department of Radiation Oncology, Tri-Service General Hospital, Taipei, Taiwan
| | - Hsing-Lung Chao
- † Department of Radiation Oncology, Tri-Service General Hospital, Taipei, Taiwan
| | - Shih-Yu Lee
- * Graduate Institute of Medical Sciences, Tri-Service General Hospital, Taipei, Taiwan.,§ Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan
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Rhodiola rosea L.: an herb with anti-stress, anti-aging, and immunostimulating properties for cancer chemoprevention. ACTA ACUST UNITED AC 2017; 3:384-395. [PMID: 30393593 DOI: 10.1007/s40495-017-0106-1] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Purpose of review Rhodiola rosea extracts have been used as a dietary supplement in healthy populations, including athletes, to non-specifically enhance the natural resistance of the body to both physical and behavior stresses for fighting fatigue and depression. We summarize the information with respect to the new pharmacological activities of Rhodiola rosea extracts and its underlying molecular mechanisms in this review article. Recent findings In addition to its multiplex stress-protective activity, Rhodiola rosea extracts have recently demonstrated its anti-aging, anti-inflammation, immunostimulating, DNA repair and anti-cancer effects in different model systems. Molecular mechanisms of Rhodiola rosea extracts's action have been studied mainly along with one of its bioactive compounds, salidroside. Both Rhodiola rosea extracts and salidroside have contrast molecular mechanisms on cancer and normal physiological functions. For cancer, Rhodiola rosea extracts and salidroside inhibit the mTOR pathway and reduce angiogenesis through down-regulation of the expression of HIF-1α/HIF-2α. For normal physiological functions, Rhodiola rosea extracts and salidroside activate the mTOR pathway, stimulate paracrine function and promote neovascularization by inhibiting PHD3 and stabilizing HIF-1α proteins in skeletal muscles. In contrast to many natural compounds, salidroside is water-soluble and highly bioavailable via oral administration and concentrated in urine by kidney excretion. Summary Rhodiola rosea extracts and salidroside can impose cellular and systemic benefits similar to the effect of positive lifestyle interventions to normal physiological functions and for anti-cancer. The unique pharmacological properties of Rhodiola rosea extracts or salidroside deserve further investigation for cancer chemoprevention, in particular for human urinary bladder cancer.
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Huang LY, Yen IC, Tsai WC, Ahmetaj-Shala B, Chang TC, Tsai CS, Lee SY. Rhodiola crenulata Attenuates High Glucose Induced Endothelial Dysfunction in Human Umbilical Vein Endothelial Cells. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2017; 45:1201-1216. [DOI: 10.1142/s0192415x17500665] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Rhodiola crenulata root extract (RCE), a traditional Chinese medicine, has been shown to regulate glucose and lipid metabolism via the AMPK pathway in high glucose (HG) conditions. However, the effect of RCE on HG-induced endothelial dysfunction remains unclear. The present study was designed to examine the effects and mechanisms of RCE against hyperglycemic insult in endothelial cells. Human umbilical vein endothelial cells (HUVECs) were pretreated with or without RCE and then exposed to 33[Formula: see text]mM HG medium. The cell viability, nitrite production, oxidative stress markers, and vasoactive factors, as well as the mechanisms underlying RCE action, were then investigated. We found that RCE significantly improved cell death, nitric oxide (NO) defects, and oxidative stress in HG conditions. In addition, RCE significantly decreased the HG-induced vasoactive markers, including endothelin-1 (ET-1), fibronectin, and vascular endothelial growth factor (VEGF). However, the RCE-restored AMPK-Akt-eNOS-NO axis and cell viability were abolished by the presence of an AMPK inhibitor. These findings suggested that the protective effects of RCE were associated with the AMPK-Akt-eNOS-NO signaling pathway. In conclusion, we showed that RCE protected endothelial cells from hyperglycemic insult and demonstrated its potential for use as a treatment for endothelial dysfunction in diabetes mellitus.
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Affiliation(s)
- Li-Yen Huang
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
- Division of Cardiology, Department of Internal Medicine, Taoyuan Armed Forces General Hospital, Taoyuan, Taiwan
| | - I-Chuan Yen
- School of Pharmacy, National Defense Medical Center, Taipei, Taiwan
| | - Wei-Cheng Tsai
- Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan
| | | | - Tsu-Chung Chang
- Department of Biochemistry, National Defense Medical Center, Taipei, Taiwan
| | - Chien-Sung Tsai
- Department and Graduate Institute of Pharmacology, National Defense Medical Center, Taipei, Taiwan
- Division of Cardiovascular Surgery, Department of Surgery, Taoyuan Armed General Forces General Hospital, Taoyuan, Taiwan
- Division of Cardiovascular Surgery, Department of Surgery, Tri-Service General Hospital, Taipei, Taiwan
| | - Shih-Yu Lee
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
- Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan
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