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Ou Z, Deng Y, Wu Y, Wang Y, Zhao Y, Liu C, Wang Z, Liu M, Hu X, Fang L, Chen J. Tongqiao Huoxue Decoction inhibits ferroptosis by facilitating ACSL4 ubiquitination degradation for neuroprotection against cerebral ischemia-reperfusion injury. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 130:155701. [PMID: 38788392 DOI: 10.1016/j.phymed.2024.155701] [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: 01/20/2024] [Revised: 04/12/2024] [Accepted: 04/30/2024] [Indexed: 05/26/2024]
Abstract
BACKGROUND Cerebral ischemia-reperfusion injury (CIRI) refers to brain tissue injury caused by the temporary interruption of cerebral blood flow ischemia followed by the restoration of reperfusion, which is the main cause of post-stroke brain injury. A traditional Chinese herbal preparation called Tongqiao Huoxue Decoction (TQHX) has shown promise in reducing CIRI in rats. However, the mechanism of this herbal preparation for CIRI remains unclear. PURPOSE This study aimed to evaluate the therapeutic effect of TQHX extract on rats with CIRI and to further explore the underlying mechanisms. METHODS The active ingredients of TQHX extract were quantified by the high-performance liquid chromatography (HPLC) condition. We conducted thorough investigations to assess the effects of TQHX on CIRI and ferroptosis using oxygen-glucose deprivation/reperfusion (OGD/R)-treated PC12 cells as an in vitro model and transient middle cerebral artery occlusion (tMCAO) animals as an in vivo model. The neurological score assessment was performed to evaluate the neuroprotective effects of TQHX extract on tMCAO rats. Using histologic methods to study the extent of cerebral infarction, blood-brain barrier, and rat brain tissue. We examined the impact of TQHX on ferroptosis-related markers of Fe2+, superoxide dismutase (SOD), reactive oxygen species (ROS), and malondialdehyde (MDA) in the brain tissue. In addition, the expression of key proteins and markers of ferroptosis, as well as key factors associated with Acyl-CoA synthetase long-chain family member 4 (ACSL4) were detected by Western blot and quantitative real-time PCR (RT-qPCR). RESULTS TQHX extract could decrease the Longa score and extent of cerebral infarction of tMCAO rats, which exerted the function of neuroprotection. Additionally, TQHX treatment efficiently decreased levels of MDA and ROS while increasing the expression of SOD and ferroptosis-related proteins including ferritin heavy chain 1 (FTH1) and glutathione peroxidase 4 (GPX4) at the transcription and translation level. Meanwhile, TQHX provided strong protection against oxidative stress and ferritin accumulation by increasing the ubiquitination and degradation of ACSL4. The injection of OE-ACSL4 reversed the effects of TQHX on neuroprotection and ferroptosis inhibition in PC12 cells. The injection of shACSL4 reversely validate the crucial role of ACSL4 in CIRI rat treatment. CONCLUSION This work shows that TQHX promotes the ubiquitination-mediated degradation of ACSL4, which improves oxidative stress and inhibits the beginning of ferroptosis in cells. TQHX provides a possible path for additional research in CIRI therapies, advancing translational investigations.
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Affiliation(s)
- Zhijie Ou
- Changshu Hospital of Traditional Chinese Medicine, 162 Huanghe Road, Changshu City, Suzhou City, Changshu, Jiangsu Province 215516, China
| | - Yanting Deng
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, China
| | - Yan Wu
- Changshu Hospital of Traditional Chinese Medicine, 162 Huanghe Road, Changshu City, Suzhou City, Changshu, Jiangsu Province 215516, China
| | - Yuanqi Wang
- Changshu Hospital of Traditional Chinese Medicine, 162 Huanghe Road, Changshu City, Suzhou City, Changshu, Jiangsu Province 215516, China
| | - Yijing Zhao
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, China
| | - Chang Liu
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, China
| | - Zhuoyu Wang
- Changshu Hospital of Traditional Chinese Medicine, 162 Huanghe Road, Changshu City, Suzhou City, Changshu, Jiangsu Province 215516, China
| | - Manhua Liu
- Changshu Hospital of Traditional Chinese Medicine, 162 Huanghe Road, Changshu City, Suzhou City, Changshu, Jiangsu Province 215516, China
| | - Xin Hu
- Changshu Hospital of Traditional Chinese Medicine, 162 Huanghe Road, Changshu City, Suzhou City, Changshu, Jiangsu Province 215516, China
| | - Li Fang
- Changshu Hospital of Traditional Chinese Medicine, 162 Huanghe Road, Changshu City, Suzhou City, Changshu, Jiangsu Province 215516, China
| | - Juping Chen
- Changshu Hospital of Traditional Chinese Medicine, 162 Huanghe Road, Changshu City, Suzhou City, Changshu, Jiangsu Province 215516, China.
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Guo J, Zhang Y, Zhou R, Hao Y, Wu X, Li G, Du Q. Deciphering the molecular mechanism of Bu Yang Huan Wu Decoction in interference with diabetic pulmonary fibrosis via regulating oxidative stress and lipid metabolism disorder. J Pharm Biomed Anal 2024; 243:116061. [PMID: 38430615 DOI: 10.1016/j.jpba.2024.116061] [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: 12/12/2023] [Revised: 01/27/2024] [Accepted: 02/17/2024] [Indexed: 03/05/2024]
Abstract
BACKGROUND Diabetes mellitus type 2 and pulmonary fibrosis have been found to be closely related in clinical practice. Diabetic pulmonary fibrosis (DPF) is a complication of diabetes mellitus, but its treatment has yet to be thoroughly investigated. Bu Yang Huan Wu Decoction (BYHWD) is a well-known traditional Chinese prescription that has shown great efficacy in treating pulmonary fibrosis with hypoglycemic and hypolipidemic effects. METHODS The active ingredients of BYHWD and the corresponding targets were retrieved from the Traditional Chinese Medicine Systematic Pharmacology Database (TCMSP) and SymMap2. Disease-related targets were obtained from the GeneCard, OMIM and CTD databases. GO enrichment and KEGG pathway enrichment were carried out using the DAVID database. AutoDock Vina software was employed to perform molecular docking. Molecular dynamics simulations of proteinligand complexes were conducted by Gromacs. Animal experiments were further performed to validate the effects of BYHWD on the selected core targets, markers of oxidative stress, serum lipids, blood glucose and pulmonary fibrosis. RESULTS A total of 84 active ingredients and 830 target genes were screened in BYHWD, among which 56 target genes intersected with DPF-related targets. Network pharmacological analysis revealed that the active ingredients can regulate target genes such as IL-6, TNF-α, VEGFA and CASP3, mainly through AGE-RAGE signaling pathway, HIF-1 signaling pathway and TNF signaling pathway. Molecular docking and molecular dynamics simulations suggested that IL6-astragaloside IV, IL6-baicalein, TNFα-astragaloside IV, and TNFα-baicalein docking complexes could bind stably. Animal experiments showed that BYHWD could reduce the expression of core targets such as VEGFA, CASP3, IL-6 and TNF-α. In addition, BYHWD could reduce blood glucose, lipid, and MDA levels in DPF while increasing the activities of SOD, CAT and GSH-Px. BYHWD attenuated the expression of HYP and collagen I, mitigating pathological damage and collagen deposition within lung tissue. CONCLUSIONS BYHWD modulates lipid metabolism disorders and oxidative stress by targeting the core targets of IL6, TNF-α, VEGFA and CASP3 through the AGE-RAGE signaling pathway, making it a potential therapy for DPF.
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Affiliation(s)
- Junfeng Guo
- Endocrinology Department, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China
| | - Yuwei Zhang
- Geriatric Department, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China
| | - Rui Zhou
- Geriatric Department, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China
| | - Yanwei Hao
- Geriatric Department, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China
| | - Xuanyu Wu
- Geriatric Department, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China
| | - Ganggang Li
- Geriatric Department, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China
| | - Quanyu Du
- Endocrinology Department, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China; TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Chengdu, Sichuan 610072, China.
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Jiao K, Lai Z, Cheng Q, Yang Z, Liao W, Liao Y, Long H, Sun R, Lang T, Shao L, Deng C, She Y. Glycosides of Buyang Huanwu decoction inhibits inflammation associated with cerebral ischemia-reperfusion via the PINK1/Parkin mitophagy pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 325:117766. [PMID: 38266949 DOI: 10.1016/j.jep.2024.117766] [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: 10/16/2023] [Revised: 01/08/2024] [Accepted: 01/11/2024] [Indexed: 01/26/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE A classic stroke formula is Buyang Huanwu Decoction (BYHWD), Glycosides are the pharmacological components found in BYHWD, which are utilized for the prevention and management of cerebral ischemia-reperfusion (CIR), as demonstrated in a previous study. Its neuroprotective properties are closely related to its ability to modulate inflammation, but its mechanism is as yet unclear. AIM OF THE STUDY A research was undertaken to investigate the impact of glycosides on the inflammation of CIR through the PTEN-induced putative kinase-1 (PINK1)/Parkin mitophagy pathway. MATERIALS AND METHODS Analyzing glycosides containing serum components was performed with ultra-performance liquid chromatography-quadrupole-time of flight-mass spectrometry (UPLC-Q-TOF-MS). Glycosides were applied to rat of Middle cerebral artery occlusion/reperfusion (MCAO/R) model and primary neural cell of Oxygen glucose deprivation/reperfusion (OGD/R) model. The neuroprotective effect and the regulation of mitophagy of glycosides were evaluated through neural damage and PINK1/Parkin mitophagy activation. Moreover, the assessment of the relationship between glycosides regulation of mitophagy and its anti-inflammatory effects subsequent to mitophagy blockade was conducted by examining neural damage, PINK1/Parkin mitophagy activation, and levels of pyroptosis. RESULTS (1) It was observed that the administration of glycosides resulted in a decrease in neurological function scores, a reduction in cerebral infarction volume, an increase in mitochondrial autophagosome, and the maintenance of a high expression status of light chain 3 (LC3) II/LC3Ⅰ protein. Additionally, there was a significant inhibition of p62 protein expression and an enhancement of PINK1 and Parkin protein expression. Furthermore, it was found that the effect of glycosides at a dosage of 0.128 g · kg-1 was significantly superior to that of glycosides at a dosage of 0.064 g · kg-1. Notably, the neuroprotective effect and inhibition of pyroptosis protein of glycosides at a dosage of 0.128 g · kg-1 were attenuated when mitochondrial autophagy was blocked. (2) Glycosides repaired cellular morphological damage, enhanced cell survival, and reduced Lactate dehydrogenase (LDH) leakage, with glycosides (2.36 μg·mL-1 and 4.72 μg·mL-1) neuronal protection being the strongest. Glycosides (4.72 μg·mL-1) maintained LC3II/LC3Ⅰ protein high expression state, inhibited p62 protein expression, and promoted PINK1 and Parkin protein expression, which was stronger than glycosides (2.36 μg·mL-1). The blockade of mitophagy resulted in a reduction of neuroprotection and inhibition of pyroptosis protein exerted by glycosides. CONCLUSION Glycosides demonstrate the ability to hinder inflammation through the activation of the PINK1/Parkin mitophagy pathway, thereby leading to subsequent neuroprotective effects on CIR.
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Affiliation(s)
- Keyan Jiao
- Hunan University of Chinese Medicine, Changsha 410208, China
| | - Zili Lai
- Hunan University of Chinese Medicine, Changsha 410208, China
| | - Qiaochu Cheng
- Hunan University of Chinese Medicine, Changsha 410208, China
| | - Zhengyu Yang
- Hunan University of Chinese Medicine, Changsha 410208, China
| | - Wenxin Liao
- Hunan University of Chinese Medicine, Changsha 410208, China
| | - Yanhao Liao
- Hunan University of Chinese Medicine, Changsha 410208, China
| | - Hongping Long
- The First Hospital of Hunan University of Chinese Medicine, Changsha 410208, China
| | - Ruiting Sun
- Hunan University of Chinese Medicine, Changsha 410208, China
| | - Ting Lang
- Hunan University of Chinese Medicine, Changsha 410208, China
| | - Le Shao
- The First Hospital of Hunan University of Chinese Medicine, Changsha 410208, China.
| | - Changqing Deng
- Hunan University of Chinese Medicine, Changsha 410208, China.
| | - Yan She
- Hunan University of Chinese Medicine, Changsha 410208, China.
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Li MC, Li MZ, Lin ZY, Zhuang YM, Wang HY, Jia JT, Lu Y, Wang ZJ, Zou HY, Zhao H. Buyang Huanwu Decoction promotes neurovascular remodeling by modulating astrocyte and microglia polarization in ischemic stroke rats. JOURNAL OF ETHNOPHARMACOLOGY 2024; 323:117620. [PMID: 38141792 DOI: 10.1016/j.jep.2023.117620] [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: 10/26/2023] [Revised: 12/12/2023] [Accepted: 12/18/2023] [Indexed: 12/25/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Buyang Huanwu Decoction (BYHWD), one of the most commonly utilized traditional Chinese medicine prescription for treatment of cerebral ischemic stroke. However, the understanding of BYHWD on neurovascular repair following cerebral ischemia is so far limited. AIM OF THE STUDY This research investigated the influence of BYHWD on neurovascular remodeling by magnetic resonance imaging (MRI) technology and revealed the potential neurovascular repair mechanism underlying post-treatment with BYHWD after ischemic stroke. MATERIALS AND METHODS Male Sprague-Dawley rats were utilized as an ischemic stroke model by permanent occlusion of the middle cerebral artery (MCAO). BYHWD was intragastrically administrated once daily for 30 days straight. Multimodal MRI was performed to detect brain tissue injuries, axonal microstructural damages, cerebral blood flow and intracranial vessels on the 30th day after BYHWD treatment. Proangiogenic factors, axonal/synaptic plasticity-related factors, energy transporters and adenosine monophosphate-activated protein kinase (AMPK) signal pathway were evaluated using western blot. Double immunofluorescent staining and western blot were applied to evaluate astrocytes and microglia polarization. RESULTS Administration of BYHWD significantly alleviated infarct volume and brain tissue injuries and ameliorated microstructural damages, accompanied with improved axonal/synaptic plasticity-related factors, axonal growth guidance factors and decreased axonal growth inhibitors. Meanwhile, BYHWD remarkably improved cerebral blood flow, cerebral vascular signal and promoted the expression of proangiogenic factors. Particularly, treatment with BYHWD obviously suppressed astrocytes A1 and microglia M1 polarization accompanied with promoted astrocyte A2 and microglia M2 polarization. Furthermore, BYHWD effectively improved energy transporters. Especially, BYHWD markedly increased expression of phosphorylated AMPK, cyclic AMP-response element binding protein (CREB) and brain-derived neurotrophic factor (BDNF) accompanied by inactivation of the NF-κB. CONCLUSION Taken together, these findings identified that the beneficial roles of BYHWD on neurovascular remodeling were related to AMPK pathways -mediated energy transporters and NFκB/CREB pathways.
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Affiliation(s)
- Ming-Cong Li
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, 100069, China
| | - Man-Zhong Li
- Department of pharmacy, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China; Beijing Key Laboratory of Bio-characteristic Profiling for Evaluation of Rational Drug Use, Beijing, 100038, China
| | - Zi-Yue Lin
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, 100069, China
| | - Yu-Ming Zhuang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, 100069, China
| | - Han-Yu Wang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, 100069, China
| | - Jing-Ting Jia
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, 100069, China
| | - Yun Lu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, 100069, China
| | - Zhan-Jing Wang
- Medical Imaging laboratory of Core Facility Center, Capital Medical University, Beijing, 100069, China
| | - Hai-Yan Zou
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, 100069, China
| | - Hui Zhao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, 100069, China.
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Ji M, Mao L, Wei Y, Zhu B, Zhai Y, Zhou X, Tao W, Wang W, Wu H. The Anti-Atherosclerotic Effects of Buyang Huanwu Decoction through M1 and M2 Macrophage Polarization in an ApoE Knockout Mouse Model. JOURNAL OF PHYSIOLOGICAL INVESTIGATION 2024; 67:79-87. [PMID: 38780292 DOI: 10.4103/ejpi.ejpi-d-23-00040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 02/02/2024] [Indexed: 05/25/2024]
Abstract
ABSTRACT Arteriosclerosis (AS) is a chronic inflammatory disease and Buyang Huanwu decoction (BHD) has been identified as an anti-atherosclerosis effect, and the study is aimed to investigate the underlying mechanism. The E4 allele of Apolipoprotein E (ApoE) is associated with both metabolic dysfunction and an enhanced pro-inflammatory response, ApoE-knockout (ApoE-/-) mice were fed with a high-fat diet to establish an arteriosclerosis model and treated with BHD or atorvastatin (as a positive control). The atherosclerotic plaque in each mouse was evaluated using Oil red O Staining. Elisa kits were used to evaluate blood lipid, interleukin-6 (IL-6), IL-1 beta (IL-1β), tumor necrosis factor alpha (TNF-α), IL-4, IL-10, and tumor growth factor beta (TGF-β) contents, while Western blot was applicated to measure inducible nitric oxide synthase (iNOS), arginase I (Arg-1) expression. Meanwhile, pyruvate kinase M2 (PKM2), hypoxia-inducible factor-1 alpha (HIF-1α) and its target genes glucose transporter type 1 (GLUT1), lactate dehydrogenase A (LDHA), and 3-phosphoinositide-dependent kinase 1 (PDK1), as well as IL-6, IL-1β, TNF-α, IL-4, IL-10, and TGF-β were evaluated by the quantitative reverse transcription-polymerase chain reaction. BHD treatment significantly reduced body weight and arteriosclerosis plaque area and blood lipid levels including total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol (HDL-C). Meanwhile, BHD demonstrated a significant suppression of M1 polarization, by decreased secretion of iNOS and pro-inflammatory factors (IL-6, IL-1β, and TNF-α) in ApoE-/- mice. The present study also revealed that BHD promotes the activation of M2 polarization, characterized by the expression of Arg-1 and anti-inflammatory factors (IL-4 and IL-10). In addition, PKM2/HIF-1α signaling was improved by M1/M2 macrophages polarization induced by BHD. The downstream target genes (GLUT1, LDHA, and PDK1) expression was significantly increased in high fat feeding ApoE-/- mice, and those of which were recused by BHD and Atorvastatin. These results suggested that M1/M2 macrophages polarization produce the inflammatory response against AS progress after BHD exposure.
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Affiliation(s)
- Mengjiao Ji
- College of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Lei Mao
- Experimental Center for Science and Technology, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yanan Wei
- College of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Boran Zhu
- College of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yi Zhai
- Experimental Center for Science and Technology, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xin Zhou
- College of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Weiwei Tao
- College of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Wei Wang
- School of Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Haoxin Wu
- College of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
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Zhang S, Yu Y, Sheng M, Chen X, Wu Q, Kou J, Chen G. Ruscogenin timing administration mitigates cerebral ischemia-reperfusion injury through regulating circadian genes and activating Nrf2 pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 120:155028. [PMID: 37659295 DOI: 10.1016/j.phymed.2023.155028] [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: 03/14/2023] [Revised: 06/14/2023] [Accepted: 08/15/2023] [Indexed: 09/04/2023]
Abstract
BACKGROUND Ruscogenin (Rus), a steroidal sapogenin extracted from Ophiopogon japonicus (L. f.) Ker-Gawl., has the effect of alleviating cerebral ischemia-reperfusion injury (IRI), acute lung injury. At present, the chronopharmacological effects of Rus are still unknown. PURPOSE This study explored the alleviating effect and mechanism of Rus timing administration on mice cerebral IRI. METHODS The animals in different groups were administrated Rus (10 mg/kg) by gavage at four time points (23:00-01:00, 05:00-07:00, 11:00-13:00, 17:00-19:00) respectively for 3 days. On the 4th day, middle cerebral artery occlusion (MCAO) surgery was operated during 5:00-7:00. Behavioral tests were executed and the brain was collected for infarct volume, qPCR and immunoblot detection. The levels of tumor necrosis factor-α (TNF-α), interleukin 6 (IL-6), interleukin-1beta (IL-1β) and inducible nitric oxide synthase (iNOS) were detected by qPCR. Glutathione (GSH), superoxide dismutase (SOD) activity and malondialdehyde (MDA) content in serum and cerebral cortex were detected. The clock genes were tested by western blot. Based on these results, 17:00-19:00 was selected to administrate Rus for further mechanism study and Nrf2 blocker group was administrated all-trans-retinoic acid (ATRA) at 14:00 for 3 days. RESULTS Administration of Rus reduced cerebral infarcted volume, ameliorated the behavior score and upregulated the mRNA and protein expression of Per1, Bmal1, Clock, Rev-erbα, transcription factor nuclear factor erythroid 2-related factor 2 (Nrf2), heme oxygenase-1 (HO-1), quinone oxidoreductase 1 (NQO1). Administration of Rus during 17:00-19:00 had better preventive effect than other three time points. Combined administration of ATRA blunted the preventive effect of Rus. CONCLUSION The preventive effect of Rus is affected by the time of administration, which was regulated by Nrf2 pathway. Taken together, we provide solid evidence to suggest that different administration time point affect the effectiveness of Rus in alleviating IRI.
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Affiliation(s)
- Sanli Zhang
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing, Jiangsu 211198, China; State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, 639 Longmian Road, Nanjing, Jiangsu 211198, China
| | - Yan Yu
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing, Jiangsu 211198, China; State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, 639 Longmian Road, Nanjing, Jiangsu 211198, China
| | - Mingyue Sheng
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing, Jiangsu 211198, China; State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, 639 Longmian Road, Nanjing, Jiangsu 211198, China
| | - Xun Chen
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing, Jiangsu 211198, China; State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, 639 Longmian Road, Nanjing, Jiangsu 211198, China
| | - Qi Wu
- State Key Laboratory of Natural Medicines, Research Department of Pharmacognosy, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing , Jiangsu 211198, China.
| | - Junping Kou
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing, Jiangsu 211198, China; State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, 639 Longmian Road, Nanjing, Jiangsu 211198, China.
| | - Gangling Chen
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing, Jiangsu 211198, China; State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, 639 Longmian Road, Nanjing, Jiangsu 211198, China.
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The Effect and Mechanism of Syringa pinnatifolia Hemsl. Ligans on Cerebral Ischemia-Reperfusion Injury and Oxidative Stress in Mice. Neurochem Res 2023; 48:1822-1834. [PMID: 36723726 DOI: 10.1007/s11064-022-03855-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 12/16/2022] [Accepted: 12/27/2022] [Indexed: 02/02/2023]
Abstract
Lignans are the main components of Syringa pinnatifolia Hemsl. (SP). Previous studies have shown that SP lignans (SPL) can considerably improve CCl4-induced acute liver injury in mice by the anti-oxidative stress (OS) mechanism. In this study, we investigated the antioxidant effects of SPL on cerebral ischemia/reperfusion injury (CIRI) and its underlying molecular mechanism. We developed a middle cerebral artery occlusion/reperfusion (MCAO/R) model in mice to achieve CIRI and orally administered SPL daily for 1-3 days. We evaluated neurological function deficits and performed hematoxylin and eosin staining. We further calculated the infarct volume. Malondialdehyde (MDA), superoxide dismutase (SOD), and glutathione peroxidase (GPx) in the brain were detected using corresponding kits. The transcription and protein levels of nuclear factor erythroid 2-related factor 2 (Nrf2), heme oxygenase 1 (HO-1), and NAD(P)H quinone dehydrogenase 1 (NQO1) in brain tissues were analyzed by real-time reverse transcription polymerase chain reaction and western blotting, respectively. The results showed that SPL could remarkably ameliorate neurological functions and pathological damage in brain tissues, reducing the cerebral infarct volume. It also increased the SOD and GPx activities decreased the MDA levels as well as inhibited the expression of (NOX)2 and NOX4. We also found that the mRNA and protein levels of Nrf2, HO-1, and NQO1 in the CIRI mice increased transiently and peaked at 24 h of reperfusion, and then began to decline. SPL could reverse decreasing Nrf2 and HO-1 levels after 24 h. In conclusion, SPL can alleviate CIRI and OS by activating the Nrf2/HO-1 pathway.
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