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Xu L, Gao Y, Hu M, Dong Y, Xu J, Zhang J, Lv P. Edaravone dexborneol protects cerebral ischemia reperfusion injury through activating Nrf2/HO-1 signaling pathway in mice. Fundam Clin Pharmacol 2022; 36:790-800. [PMID: 35470467 PMCID: PMC9545784 DOI: 10.1111/fcp.12782] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 03/26/2022] [Accepted: 04/21/2022] [Indexed: 12/16/2022]
Abstract
Stroke is the leading cause of disability and death. When blood flow is restored after prolonged ischemia and hypoxia, it leads to excessive production of reactive oxygen species (ROS), increased local inflammation, and apoptosis, which are the cause of most cerebral ischemia reperfusion injury (CIRI), leading to secondary brain tissue damage. Edaravone dexborneol is a novel neuroprotective agent consisting of edaravone and borneol. Studies have shown that it has synergistic antioxidant and anti‐inflammatory effects. However, whether Edaravone dexborneol stimulates the Nrf2/HO‐1 pathway to regulate NADPH oxidase 2 (NOX2) remains unclear. In this study, wild‐type (WT) mice and Nrf2 knockout (KO) mice were used to investigate the antioxidant, anti‐inflammatory, and anti‐apoptotic effects of Edaravone dexborneol on CIRI and its mechanism. The cognitive function of mice was evaluated with the Morris water maze (MWM), test and the cell structures of hippocampus were observed by hematoxylin and eosin (H&E) staining. Nrf2, HO‐1, and NOX2 proteins and apoptosis‐related proteins Bcl‐2, Bax, and Caspase 3 were detected by western blotting. Nrf2, HO‐1, NOX2, and inflammatory factors TNF‐α, IL‐1β, IL‐4, and IL‐10 were detected by real‐time polymerase chain reaction. The results showed that Edaravone dexborneol treatment improved learning and memory performance, neuronal damage, and enhanced antioxidant, inflammation, and apoptosis in CIRI mice. In addition, Edaravone dexborneol induced the activation Nrf2/HO‐1 signaling pathway activation while inhibiting NOX2 expression. Overall, these results indicate that Edaravone dexborneol ameliorates CIRI‐induced memory impairments by activating Nrf2/HO‐1 signaling pathway and inhibiting NOX2.
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Affiliation(s)
- Lili Xu
- Hebei North University, Zhangjiakou, China
| | - Yaran Gao
- Department of Neurology, Hebei Medical University, Shijiazhuang, China.,Department of Neurology, Hebei General Hospital, Shijiazhuang, China
| | - Ming Hu
- Department of Neurology, Hebei General Hospital, Shijiazhuang, China
| | - Yanhong Dong
- Department of Neurology, Hebei General Hospital, Shijiazhuang, China
| | - Jing Xu
- Department of Neurology, Hebei General Hospital, Shijiazhuang, China
| | - Jiawei Zhang
- Department of Neurology, Hebei Medical University, Shijiazhuang, China
| | - Peiyuan Lv
- Hebei North University, Zhangjiakou, China.,Department of Neurology, Hebei Medical University, Shijiazhuang, China.,Department of Neurology, Hebei General Hospital, Shijiazhuang, China
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Wang Y, Ge X, Yu S, Cheng Q. Achyranthes bidentata polypeptide alleviates neurotoxicity of lipopolysaccharide-activated microglia via PI3K/Akt dependent NOX2/ROS pathway. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1522. [PMID: 34790728 PMCID: PMC8576683 DOI: 10.21037/atm-21-4027] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 10/02/2021] [Indexed: 01/02/2023]
Abstract
Background Achyranthes bidentata polypeptide fraction k (ABPPk) has been shown to protect ischemic stroke and Parkinson’s disease, and can inhibit neuroinflammation in lipopolysaccharide (LPS)-activated BV2 microglia. However, the effect of ABPPk responsible for alleviating microglial neurotoxicity remains unknown. Methods Primary microglia were cultured to investigate the effect of ABPPk on LPS-induced neuroinflammation. Microglia conditioned medium (MCM) was collected to stimulate primary cortical neurons and then the neuronal viability, lactate dehydrogenase (LDH) release, intracellular calcium influx, mitochondria membrane potential (MMP) were assessed, respectively. Postnatal day 5 Sprague-Dawley rat pups were intracerebral injected with LPS to establish an LPS-induced brain injury model. Double immunohistochemical staining for NeuN and Iba1 was performed to evaluate the effects of ABPPk on LPS-induced neuronal damage and microglial activation. TUNEL assay was conducted to detect cell apoptosis in LPS-injected brain. The effect of ABPPk on LPS-induced NADPH oxidase 2 (NOX2) expression and reactive oxygen species (ROS) production as well as the phosphorylation of protein kinase B (Akt) was detected. Moreover, LY294002 (a specific PI3K inhibitor) and SC79 (a specific Akt activator) were used to further reveal the underlying mechanism. Results ABPPk pretreatment inhibited LPS-induced NLRP3 and cleaved caspase 1 expressions as well as the mRNA levels of IL-1β and IL-18. Moreover, ABPPk inhibited glutamate release from LPS-activated microglia in a concentration-dependent manner. MCM stimulation resulted in characteristic neuronal toxicity including neuronal viability decrease, LDH release increase, calcium overload, and MMP drop. However, ABPPk pretreatment on microglia reduced the neurotoxicity of MCM. LPS intracerebral injection led to neuronal damage, microglial activation and cell apoptosis in the brain, while ABPPk preadministration significantly inhibited LPS-induced microglial activation and alleviated the brain injury. ABPPk pretreatment inhibited NOX2 expression and ROS production in LPS-activated primary microglia. Signaling pathway analysis showed that ABPPk promoted the phosphorylation of Akt in microglia and inhibited LPS-upregulated NOX2 expression, ROS production, and glutamate release, which can be eliminated by pharmacological inhibition of PI3K. Specific Akt activator could inhibit LPS-induced NOX2 expression, ROS production and glutamate release. Conclusions The present results suggested that ABPPk could alleviate neurotoxicity of LPS-activated microglia via PI3K/Akt dependent NOX2/ROS pathway.
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Affiliation(s)
- Yitong Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Xiangyu Ge
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Shu Yu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Qiong Cheng
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
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Ge X, Wang Y, Yu S, Cao X, Chen Y, Cheng Q, Ding F. Anti-inflammatory Activity of a Polypeptide Fraction From Achyranthes bidentate in Amyloid β Oligomers Induced Model of Alzheimer's Disease. Front Pharmacol 2021; 12:716177. [PMID: 34456729 PMCID: PMC8397449 DOI: 10.3389/fphar.2021.716177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 08/03/2021] [Indexed: 01/16/2023] Open
Abstract
Neuroinflammation plays a crucial role in neurodegenerative diseases such as Alzheimer's disease (AD) and Parkinson's disease (PD), and anti-inflammation has been considered as a potential therapeutic strategy. Achyranthes bidentate polypeptide fraction k (ABPPk) was shown to protect neurons from death and suppress microglia and astrocyte activation in PD model mice. However, how ABPPk regulates neuroinflammation to exert a neuroprotective role remains unclear. Toxic Aβ oligomers (AβOs) can trigger inflammatory response and play an important role in the pathogenesis of AD. In the present study, for the first time, we investigated the effects and underlying mechanisms of ABPPk on neuroinflammation in AβOs-induced models of AD. In vitro, ABPPk pretreatment dose-dependently inhibited AβOs-induced pro-inflammatory cytokines mRNA levels in BV2 and primary microglia. ABPPk pretreatment also reduced the neurotoxicity of BV2 microglia-conditioned media on primary hippocampal neurons. Furthermore, ABPPk down-regulated the AβOs-induced phosphorylation of IκBα and NF-κB p65 as well as the expression of NLRP3 in BV2 microglia. In vivo, ABPPk pre-administration significantly improved locomotor activity, alleviated memory deficits, and rescued neuronal degeneration and loss in the hippocampus of AβOs-injected mice. ABPPk inhibited the activation of microglia in hippocampal CA3 region and suppressed the activation of NF-κB as well as the expression of NLRP3, cleaved caspase-1, and ASC in the brain after AβOs injection. ABPPk hindered the release of pro-inflammatory cytokines and promoted the release of anti-inflammatory cytokines in the brain. Notably, the polarization experiment on BV2 microglia demonstrated that ABPPk inhibited M1-phenotype polarization and promoted M2-phenotype polarization by activating the LPS- or AβOs-impaired autophagy in microglia. Taken together, our observations indicate that ABPPk can restore the autophagy of microglia damaged by AβOs, thereby promoting M2-phenotype polarization and inhibiting M1-phenotype polarization, thus playing a role in regulating neuroinflammation and alleviating neurotoxicity.
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Affiliation(s)
- Xiangyu Ge
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Province Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Yitong Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Province Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Shu Yu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Province Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Xuemin Cao
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Province Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China.,School of Medicine, Nantong University, Nantong, China
| | - Yicong Chen
- School of Medicine, Nantong University, Nantong, China
| | - Qiong Cheng
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Province Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Fei Ding
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Province Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China.,Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong, China
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Ding F, Bai Y, Cheng Q, Yu S, Cheng M, Wu Y, Zhang X, Liang X, Gu X. Bidentatide, a Novel Plant Peptide Derived from Achyranthes bidentata Blume: Isolation, Characterization, and Neuroprotection through Inhibition of NR2B-Containing NMDA Receptors. Int J Mol Sci 2021; 22:ijms22157977. [PMID: 34360755 PMCID: PMC8348887 DOI: 10.3390/ijms22157977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/29/2021] [Accepted: 07/01/2021] [Indexed: 12/11/2022] Open
Abstract
Increasing attention is being focused on the use of polypeptide-based N-methyl-d-aspartate (NMDA) receptor antagonists for the treatment of nervous system disorders. In our study on Achyranthes bidentata Blume, we identified an NMDA receptor subtype 2B (NR2B) antagonist that exerts distinct neuroprotective actions. This antagonist is a 33 amino acid peptide, named bidentatide, which contains three disulfide bridges that form a cysteine knot motif. We determined the neuroactive potential of bidentatide by evaluating its in vitro effects against NMDA-mediated excitotoxicity. The results showed that pretreating primary cultured hippocampal neurons with bidentatide prevented NMDA-induced cell death and apoptosis via multiple mechanisms that involved intracellular Ca2+ inhibition, NMDA current inhibition, and apoptosis-related protein expression regulation. These mechanisms were all dependent on bidentatide-induced inhibitory regulation of NR2B-containing NMDA receptors; thus, bidentatide may contribute to the development of neuroprotective agents that would likely possess the high selectivity and safety profiles inherent in peptide drugs.
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Affiliation(s)
- Fei Ding
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong 226001, China; (F.D.); (Q.C.); (S.Y.)
| | - Yunpeng Bai
- CAS Key Laboratory of Separation Sciences of Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116023, China; (Y.B.); (M.C.); (Y.W.)
| | - Qiong Cheng
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong 226001, China; (F.D.); (Q.C.); (S.Y.)
| | - Shu Yu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong 226001, China; (F.D.); (Q.C.); (S.Y.)
| | - Mengchun Cheng
- CAS Key Laboratory of Separation Sciences of Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116023, China; (Y.B.); (M.C.); (Y.W.)
| | - Yulin Wu
- CAS Key Laboratory of Separation Sciences of Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116023, China; (Y.B.); (M.C.); (Y.W.)
- School of Pharmacy, Henan University of Chinese Medicine, East Jinshui Road 156, Zhengzhou 450046, China
| | - Xiaozhe Zhang
- CAS Key Laboratory of Separation Sciences of Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116023, China; (Y.B.); (M.C.); (Y.W.)
- Partner Group of Max Planck Society, Dalian 116023, China
- Correspondence: (X.Z.); (X.L.); (X.G.)
| | - Xinmiao Liang
- CAS Key Laboratory of Separation Sciences of Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116023, China; (Y.B.); (M.C.); (Y.W.)
- Correspondence: (X.Z.); (X.L.); (X.G.)
| | - Xiaosong Gu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong 226001, China; (F.D.); (Q.C.); (S.Y.)
- Correspondence: (X.Z.); (X.L.); (X.G.)
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Achyranthes bidentata polypeptide k enhances the survival, growth and axonal regeneration of spinal cord motor neurons in vitro. Neuroreport 2021; 32:518-524. [PMID: 33788819 DOI: 10.1097/wnr.0000000000001621] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Achyranthes bidentata polypeptide k (ABPPk), a powerful active component from a traditional Chinese medicinal herb-Achyranthes bidentata Bl., has exhibited promising neuroprotective activity due to its multiple-targeting capability. However, the effect of ABPPk on the survival, growth and axonal regeneration of spinal cord motor neurons remains unclear. Here, a modified method, which is more optimized for embryonic cells in ambient carbon dioxide levels, was used for acquisition of rat embryonic spinal cord motor neurons with high survival and purity. ABPPk concentration-dependently enhanced the neuronal viability and promoted the neurite outgrowth. Co-culture of motor neurons and skeletal myocytes model indicated that ABPPk enhanced the neuromuscular junction development and maturation. A microfluidic axotomy model was further established for the axonal disconnection, and ABPPk significantly accelerated the axonal regeneration of motor neurons. Furthermore, we demonstrated that the upregulation of three neurofilament protein subunits in motor neurons might be relevant to the mechanisms of the growth-promoting effect of ABPPk. Our findings provide an experimental and theoretical basis for the development of ABPPk as a potential application in the development of treatment strategy for nerve injury diseases.
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Li M, Zhu Y, Tang L, Xu H, Zhong J, Peng W, Yuan Y, Gu X, Wang H. Protective effects and molecular mechanisms of Achyranthes bidentata polypeptide k on Schwann cells. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:381. [PMID: 33842602 PMCID: PMC8033397 DOI: 10.21037/atm-20-2900] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Background Achyranthes bidentata polypeptide k (ABPPk) is an active ingredient used in traditional Chinese medicine separated from Achyranthes bidentata polypeptides. So far, the role of ABPPk in peripheral nerve protection has not been comprehensively studied. Methods In this study, primary Schwann cells exposed to serum deprivation were treated with ABPPk or nerve growth factor (NGF) in vitro. Cell viability, cell apoptosis, apoptosis-related protein expression, and antioxidant enzyme activity were analyzed. To further explore the underlying molecular mechanisms and key regulatory molecules involved in the effects of ABPPk, integrative and dynamic bioinformatics analysis at different time points was carried out following RNA-seq of Schwann cells subjected to serum deprivation. Results We found that ABPPk could effectively reduce Schwann cell apoptosis caused by serum deprivation, which was comparable to NGF’s anti-apoptotic effects. ABPPk had the largest number of upregulated and downregulated differential expression genes at the earliest 0.5 h time, while NGF had fewer differential expression genes at this early stage. The significant difference at this time point between the two groups was also displayed in heatmaps. The molecular regulation of diseases and functions and canonical pathways revealed that ABPPk had more participation and advantages in the vasculature and immune system areas, especially angiogenesis regulation. Also, ABPPk demonstrated an earlier start in these molecular regulations than NGF. Furthermore, the analysis of transcription factors also illustrated that ABPPk not only had more key initial regulatory factors participating in vascular-related processes, but these also remained for a longer period. There was no significant difference in neural-related molecular regulation between the two groups. Conclusions Using high-throughput sequencing technology, our work unveiled the protective effects of ABPPk on Schwann cells after serum deprivation in a more comprehensive manner. These results further enrich the positive functions and molecular mechanisms of ABPPk and traditional Chinese medicine and benefit the discovery of novel therapeutic targets for peripheral nerve regeneration.
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Affiliation(s)
- Meiyuan Li
- Key Laboratory of Neuroregeneration of Jiangsu, Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Ye Zhu
- Key Laboratory of Neuroregeneration of Jiangsu, Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, China.,Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Leili Tang
- Key Laboratory of Neuroregeneration of Jiangsu, Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Hua Xu
- Department of Orthopedics, Affiliated Hospital of Nantong University, Nantong, China
| | | | - Wenqiang Peng
- Key Laboratory of Neuroregeneration of Jiangsu, Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Ying Yuan
- Key Laboratory of Neuroregeneration of Jiangsu, Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Xiaosong Gu
- Key Laboratory of Neuroregeneration of Jiangsu, Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Hongkui Wang
- Key Laboratory of Neuroregeneration of Jiangsu, Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, China
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Hu W, He J, Wang Y, Xu L, Zhao Y, Hu X, Shen H. Protective effect of Achyranthes bidentata polypeptides on NMDA-mediated injury is developmentally regulated via modulating NR2A and NR2B differentially. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:248. [PMID: 33708875 PMCID: PMC7940890 DOI: 10.21037/atm-20-581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Background Achyranthes bidentata polypeptides (ABPPs) are a potent intervention for excitotoxicity-related disorders such as Parkinson’s disease and ischemic stroke. Previous work suggests that overstimulation of N-methyl-D-aspartate (NMDA) receptors plays a critical role in excitotoxicity, and expression of NR2 subunit variations is developmentally regulated. Our current study focused on neuroprotection of ABPPs on cultured neurons by modulation of NR2A and NR2B differentially. Methods Primary cultured neurons were treated with NVP-AAM077, Ro-256981, ABPPs, and then the neurons were exposed to NMDA to induce excitotoxicity. Cellular viability was detected promptly and 24-hour after exposure to NMDA by MTT assay. Patch-clamp recording was applied to evaluate the effect of ABPPs on NMDA-evoked current and the differential modulation of ABPPs on NR2A and NR2B subunits in conjunction with NVP-AAM077 and Ro-256981. Results ABPPs (10 µg/mL) blocked neuronal injury by NMDA in mature cultures, and the peptides conferred neuroprotection in immature cultures unless co-applied with NVP-AAM077. Furthermore, ABPPs enhanced NMDA current in mature cultures, while decreasing NMDA current in immature cultures. On the other hand, we showed that ABPPs increased NMDA current when Ro-256981 was present and decreased NMDA current when NVP-AAM007 was present. Conclusions Neuroprotection of ABPPs on NMDA-mediated injury differentially in immature and mature cultures involves enhancement of NR2A subunits and prevention of NR2B subunits, indicating that dosage of ABPP should be considered in treatment with patients at different developmental stages.
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Affiliation(s)
- Wenqing Hu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China.,Department of Bioengineering, Jacobs School of Engineering, UC San Diego, La Jolla, CA, USA
| | - Jianghong He
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Yu Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Lingchi Xu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Ying Zhao
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Xinping Hu
- Department of Information Technology, Library of Nantong University, Nantong University, Nantong, China
| | - Hongmei Shen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China.,Affiliated Mental Health Center of Nantong University, Brain Hospital of Nantong City, Nantong, China
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Amirzargar N, Heidari-Soureshjani S, Yang Q, Abbaszadeh S, Khaksarian M. Neuroprotective Effects of Medicinal Plants in Cerebral Hypoxia and Anoxia: A Systematic Review. ACTA ACUST UNITED AC 2020. [DOI: 10.2174/2210315509666190820103658] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background:
Hypoxia and anoxia are dangerous and sometimes irreversible complications
in the central nervous system (CNS), which in some cases lead to death.
Objective:
The aim of this review was to investigate the neuroprotective effects of medicinal plants
in cerebral hypoxia and anoxia.
Methods:
The word hypox*, in combination with some herbal terms such as medicinal plant, phyto*
and herb*, was used to search for relevant publications indexed in the Institute for Scientific Information
(ISI) and PubMed from 2000-2019.
Results:
Certain medicinal plants and herbal derivatives can exert their protective effects in several
ways. The most important mechanisms are the inhibition of inducible nitric oxide synthase (iNOS),
production of NO, inhibition of both hypoxia-inducible factor 1α and tumor necrosis factor-alpha activation,
and reduction of extracellular glutamate, N-Methyl-D-aspartic and intracellular Ca (2+). In
addition, they have an antioxidant activity and can adjust the expression of genes related to oxidant
generation or antioxidant capacity. These plants can also inhibit lipid peroxidation, up-regulate superoxide
dismutase activity and inhibit the content of malondialdehyde and lactate dehydrogenase.
Moreover, they also have protective effects against cytotoxicity through down-regulation of the proteins
that causes apoptosis, anti-excitatory activity, inhibition of apoptosis signaling pathway, reduction
of pro-apoptotic proteins, and endoplasmic reticulum stress that causes apoptosis during hypoxia,
increasing anti-apoptotic protein, inhibition of protein tyrosine kinase activation, decreasing
proteases activity and DNA fragmentation, and upregulation of mitochondrial cytochrome oxidase.
Conclusion:
The results indicated that medicinal plants and their compounds mainly exert their neuroprotective
effects in hypoxia via regulating proteins that are related to antioxidant, anti-apoptosis
and anti-inflammatory activities.
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Affiliation(s)
- Nasibeh Amirzargar
- Department of Neurology, Rofeydeh Rehabilitation Hospital, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | | | - Qian Yang
- Institute of Pharmacy and Molecular Biotechnology, University of Heidelberg, Heidelberg, Germany
| | - Saber Abbaszadeh
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Mojtaba Khaksarian
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
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Cheng Q, Shen Y, Cheng Z, Shao Q, Wang C, Sun H, Zhang Q. Achyranthes bidentata polypeptide k suppresses neuroinflammation in BV2 microglia through Nrf2-dependent mechanism. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:575. [PMID: 31807556 DOI: 10.21037/atm.2019.09.07] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Background Activated microglia play a critical role in regulating neuroinflammatory responses in central nervous system. Previous studies have shown that Achyranthes bidentata polypeptide k's (ABPPk's) neuroprotective effects are partly due to its anti-inflammatory effect, but the mechanism remains unknown. This study is aimed to investigate the anti-inflammatory effect of ABPPk on lipopolysaccharide (LPS)-activated neuroinflammation in BV2 microglia. Methods We pretreated BV2 microglia with different concentrations of ABPPk (0.04-5 µg/mL) for 30 minutes, and then stimulated microglia with LPS for 24 hours. Pro-inflammatory mediators including tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), nitric oxide (NO) and prostaglandin E2 (PGE2) production were measured by enzyme-linked immunosorbent assay (ELISA) kits. Inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), phosphorylated nuclear factor kappa B (NF-κB), heme oxygenase-1 (HO-1) and nuclear factor erythroid 2-related factor 2 (Nrf2) expression levels were detected by western blot. Glutathione (GSH) level was measured by GSH-Glo™ Glutathione assay. Immunofluorescent staining was used to detect the nuclear translocation of NF-κB and Nrf2. BV2 microglia transfected with Nrf2 siRNA were used to investigate the effect of Nrf2 on the anti-inflammatory activity of ABPPk. Results ABPPk (0.2-5 µg/mL) reduced the iNOS mediated NO and COX-2 mediated PGE2 production significantly in LPS-activated BV2 microglia. ABPPk (1 and 5 µg/mL) also suppressed the production of TNF-α and IL-6 significantly. NF-κB is phosphorylated and translocated into nuclear in LPS-activated BV2 microglia, but ABPPk is shown to inhibit the phosphorylation and translocation of NF-κB in a concentration-dependent way. ABPPk increased the protein expression levels of HO-1 and Nrf2, as well as the GSH content in BV2 microglia. Immunofluorescent staining showed that ABPPk also promoted nuclear translocation of Nrf2. After knocking down Nrf2 in BV2 cells with siRNA interference, ABPPk's inhibitory effect on pro-inflammatory mediators also disappeared. Conclusions The present study suggests that ABPPk inhibits neuroinflammation in BV2 microglia through Nrf2-dependent mechanism. This provides some strong evidence for the potential of this neuroprotective natural compound to treat neurodegenerative diseases such as ischemic stroke and Parkinson's disease.
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Affiliation(s)
- Qiong Cheng
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China.,Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong 226001, China
| | - Yuntian Shen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Zhenghui Cheng
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Qian Shao
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Caiping Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Hualin Sun
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China.,Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong 226001, China
| | - Qi Zhang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
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10
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Xu H, Gu H, Yang Y, Cai E, Ding F, Yu S. 2-(4-Methoxyphenyl)Ethyl-2-Acetamido-2-Deoxy-β-d-Pyranoside Exerts a Neuroprotective Effect through Regulation of Energy Homeostasis and O-GlcNAcylation. J Mol Neurosci 2019; 69:177-187. [DOI: 10.1007/s12031-019-01347-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 05/22/2019] [Indexed: 12/13/2022]
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11
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Xia D, Zhang Z, Zhao Y. Acteoside Attenuates Oxidative Stress and Neuronal Apoptosis in Rats with Focal Cerebral Ischemia-Reperfusion Injury. Biol Pharm Bull 2019; 41:1645-1651. [PMID: 30381663 DOI: 10.1248/bpb.b18-00210] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Acteoside (ACT) has been shown to exert antioxidant and neuroprotective effects in neurodegenerative diseases. However, the effect of ACT on cerebral ischemia-reperfusion (I/R) injury is not yet clear. In this study, we found that ACT administration reduced infarct volume and brain edema, and improved neurological deficits, as indicated by the decreased modified neurological severity score. Administration of ACT strikingly reduced oxidative stress, accompanied by decreased levels of reactive oxygen species and malondialdehyde and increased levels of superoxide dismutase and catalase in a rat model of middle cerebral artery occlusion/reperfusion (MCAO/R). Furthermore, ACT administration reduced the number of terminal deoxynucleotidyl transferase uridine 5'-triphosphate (UTP) nick-end labeling-positive cells in the cerebral cortex of ischemic side of MCAO/R rats, accompanied by downregulation of B cell lymphoma 2 (Bcl-2) associated X protein and cleaved caspase-3 proteins and upregulation of Bcl-2 protein. Additionally, ACT treatment inhibited the protein kinase R/eukaryotic initiation factor-2α stress pathway in the brains of MCAO/R rats. Our results demonstrated that ACT attenuates oxidative stress and neuronal apoptosis in MCAO/R rats, suggesting that ACT may serve as a novel therapeutic candidate for the treatment of I/R brain injury.
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Affiliation(s)
- Dongjian Xia
- Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University.,Department of Neurosurgery, the First Affiliated Hospital, Jinzhou Medical University
| | - Zhuang Zhang
- Department of Neurology, the First Affiliated Hospital, Jinzhou Medical University
| | - Yuanli Zhao
- Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University
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12
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Li M, Zhu Y, Peng W, Wang H, Yuan Y, Gu X. Achyranthes bidentata Polypeptide Protects Schwann Cells From Apoptosis in Hydrogen Peroxide-Induced Oxidative Stress. Front Neurosci 2018; 12:868. [PMID: 30555292 PMCID: PMC6284036 DOI: 10.3389/fnins.2018.00868] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 11/06/2018] [Indexed: 11/13/2022] Open
Abstract
ABPPk, the active ingredient separated from Achyranthes bidentata polypeptides, is a traditional Chinese medicine with multiple pharmaceutical properties. In this study, we investigated the molecular mechanisms of ABPPk in protecting Schwann cells (SCs) from H2O2-induced cell apoptosis. The viability of SCs pretreated with ABPPk was elevated significantly by MTT assay estimation. Meanwhile, the apoptosis of SCs was reduced which was showed in flow cytometry and transferase-mediated dUTP nick end labeling analysis. Furthermore, the addition of ABPPk also increased the activities of SOD and GSH accompanied with a decrease in MDA and LDH activities. According to Western blot analysis, the upregulation of Bcl-2, also downregulation of Bax and cleaved caspase-3 were demonstrated in SCs which was ABPPk pretreated. Further research showed that PI3K/AKT and ERK1/2 pathways in SCs have been activated after pretreatment of ABPPk. Collectively, results in our study suggested that ABPPk protected SCs from H2O2-induced oxidative damage by reducing the expression of apoptotic molecules and enhancing the activities of antioxidant enzymes, which inhibited the apoptosis of SCs modulated by PI3K/AKT and ERK1/2 signaling pathways. In our perspectives, ABPPk as an active factor with its antioxidative activities has potential and promising therapeutic effects in the prevention of neurologic disorders.
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Affiliation(s)
- Meiyuan Li
- School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China.,Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovatioin Center of Neuroregeneration, Nantong University, Nantong, China
| | - Ye Zhu
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovatioin Center of Neuroregeneration, Nantong University, Nantong, China
| | - Wenqiang Peng
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovatioin Center of Neuroregeneration, Nantong University, Nantong, China
| | - Hongkui Wang
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovatioin Center of Neuroregeneration, Nantong University, Nantong, China
| | - Ying Yuan
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovatioin Center of Neuroregeneration, Nantong University, Nantong, China
| | - Xiaosong Gu
- School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China.,Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovatioin Center of Neuroregeneration, Nantong University, Nantong, China
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13
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Peng S, Wang C, Ma J, Jiang K, Jiang Y, Gu X, Sun C. Achyranthes bidentata polypeptide protects dopaminergic neurons from apoptosis in Parkinson's disease models both in vitro and in vivo. Br J Pharmacol 2018; 175:631-643. [PMID: 29181847 DOI: 10.1111/bph.14110] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 11/14/2017] [Accepted: 11/19/2017] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND AND PURPOSE Parkinson's disease (PD) is a neurodegenerative disorder closely associated with dopaminergic neuron loss. It is well documented that Achyranthes bidentata polypeptides (ABPP) are potent neuroprotective agents in several kinds of neurons. Therefore, we proposed that ABPP might play a beneficial role against PD by protecting dopaminergic neurons from apoptosis. EXPERIMENTAL APPROACH SH-SY5Y cells and primary rat dopaminergic neurons were pretreated with ABPP fraction k (ABPPk), a purified fraction of ABPP, and then the cells were exposed to 1-methyl-4-phenylpyridinium iodide (MPP+ ) to induce apoptosis. Cell viability, LDH activity, a Tunel assay and protein levels of Bcl-2 and Bax were analysed. In an in vivo PD model induced by MPTP, ABPPk was intranasally delivered to mice. Behavioural tests, immunohistochemistry, immunostaining, Nissl staining, qRT-PCR and Western blot were employed to evaluate the potential effects of ABPPk on PD in mice. KEY RESULTS The application of ABPPk markedly enhanced the viability of SH-SY5Y cells and primary dopaminergic neurons treated with neurotoxic agent MPP+ . In an in vivo MPTP-induced PD model, ABPPk significantly improved behavioural performances and prevented tyrosine hydroxylase loss in the substantia nigra pars compacta and striatum. Furthermore, we showed that MPTP-induced astrocyte and microglia activation were largely attenuated by ABPPk, leading to low levels of neuroinflammation and a downregulation of the apoptotic signalling pathway. CONCLUSION AND IMPLICATIONS Taken together, our data show that ABPPk protects dopaminergic neurons from apoptosis, suggesting that ABPPk might be an effective intervention for treating the neuron loss associated with disorders such as PD.
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Affiliation(s)
- Su Peng
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China
| | - Caiping Wang
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China
| | - Jinyu Ma
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China
| | - Ketao Jiang
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China
| | - Yuhui Jiang
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China
| | - Xiaosong Gu
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China
| | - Cheng Sun
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China
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14
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Peng S, Xu L, Ma JY, Gu XS, Sun C. Achyranthes bidentata polypeptide protects dopaminergic neurons from apoptosis induced by rotenone and 6-hydroxydopamine. Neural Regen Res 2018; 13:1981-1987. [PMID: 30233073 PMCID: PMC6183036 DOI: 10.4103/1673-5374.239446] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
It has been well documented that Achyranthes bidentata polypeptides (ABPPs) are potent neuroprotective agents in several types of neurons. However, whether ABPPs protect dopaminergic neurons from apoptosis induced by neurotoxins is still unknown. This study was designed to observe the effect of ABPPk, a purified fraction of ABPPs, on apoptosis of dopaminergic neurons. SH-5YHY cells and primary dopaminergic neurons were pre-treated with ABPPk (25, 50, or 100 ng/mL) for 12 hours. Cells were then exposed to 6-hydroxydopamine (50 or 150 μM) or rotenone (50 or 200 μM) for 36 hours to induce cell apoptosis. Our results demonstrate that ABPPk markedly increased viability in SH-SY5Y cells and primary dopaminergic neurons, decreased lactate dehydrogenase activity and number of apoptotic dopaminergic neurons, elevated mitochondrial membrane potential, and increased Bcl-2/Bax ratio. These findings suggest that ABPPk protects dopaminergic neurons from apoptosis, and that ABPPk treatment might be an effective intervention for treating dopaminergic neuronal loss associated with disorders such as Parkinson's disease.
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Affiliation(s)
- Su Peng
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovatioin Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Li Xu
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovatioin Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Jin-Yu Ma
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovatioin Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Xiao-Song Gu
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovatioin Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Cheng Sun
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovatioin Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
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15
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He X, Wang X, Fang J, Chang Y, Ning N, Guo H, Huang L, Huang X. The genus Achyranthes: A review on traditional uses, phytochemistry, and pharmacological activities. JOURNAL OF ETHNOPHARMACOLOGY 2017; 203:260-278. [PMID: 28347832 DOI: 10.1016/j.jep.2017.03.035] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 03/15/2017] [Accepted: 03/20/2017] [Indexed: 05/28/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Achyranthes L. (Amaranthaceae), also known as Chaff Flower and Niuxi/, mainly includes two famous medicinal species namely A. bidentata and A. aspera. A. bidentata has been widely used as blood-activating and stasis-resolving medicine for the treatment of various diseases including amenorrhea, dysmenorrhea, lumbago, gonalgia, paraplegia, edema, stranguria, headache, dizziness, odontalgia, oral ulcer, hematemesis, and epistaxis. A. aspera has been widely used to treat various diseases, including gynecological disorder, asthma, ophthalmia, odontalgia, haemorrhoids, and abdominal tumor, and has been applied to difficult labour, wound healing, insect and snake bites. AIM OF THIS REVIEW This review aims to provide systematically reorganized information on distributions, botanical characteristics, ethnopharmacology, chemical constituents, qualitative and quantitative analysis, pharmacological activities, and toxicity of Achyranthes species to support their therapeutic potential. MATERIALS AND METHODS The relevant information on Achyranthes species was gathered from worldwide accepted scientific databases via electronic search (Google Scholar, Web of Science, ScienceDirect, ACS Publications, PubMed, Wiley Online Library, SciFinder, CNKI). Information was also obtained from International Plant Names Index, Chinese Pharmacopoeia, Chinese herbal classic books, PhD and MSc dissertations, etc. RESULTS A comprehensive analysis of literatures obtained through the above- mentioned sources confirms that the ethnomedicinal uses of Achyranthes species are mainly recorded in China, India, Korea, Pakistan, Ethiopia, Kenya, Sri Lanka, Bangladesh, Philippines, etc. Phytochemical investigations revealed that the major bioactive substances of Achyranthes plants are polysaccharides, polypeptides, triterpenoid saponins, and ketosteroids. Achyranthes plants have been shown to not only act on immune system, nervous system, bone metabolism, and reproduction, but also possess a wide range of biological activities, including blood-activating, anti-tumor, anti-inflammation, anti-arthritis, anti-oxidation, anti-aging, wound healing, etc. Toxicity studies indicated that A. bidentata and A. aspera seem non-toxic at the common therapeutic doses. CONCLUSIONS A. bidentata and A. aspera are very promising to be fully utilized in the development of nutraceutical and pharmaceutical products. There are, however, needs for further in-depth studies to confirm some ethnomedicinal uses of Achyranthes plants and to elucidate the scientific connotation of the widely documented property of conducting drug downward of A. bidentata. In addition, other widespread Achyranthes species like A. japonica and A. rubrofusca ought to be studied. Likewise, systematic comparative studies of the chemical constituents of medicinal Achyranthes plants resources with the same local name are also needed. Furthermore, not only should the investigations on the structure-activity relationship of the main bioactive compounds triterpenoid saponins and ketosteroids be carried out, but the pathways of absorption, distribution, metabolism, and excretion ought to be clarified. Last but not least, there is also a need to evaluate the long-term chronic toxicity and acute toxicity in vivo of the main bioactive compounds.
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Affiliation(s)
- Xirui He
- Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an 710054, PR China; Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education, Xi'an 710069, PR China
| | - Xiaoxiao Wang
- Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education, Xi'an 710069, PR China
| | - Jiacheng Fang
- Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education, Xi'an 710069, PR China
| | - Yu Chang
- Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an 710054, PR China
| | - Ning Ning
- Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an 710054, PR China
| | - Hao Guo
- Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an 710054, PR China
| | - Linhong Huang
- Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an 710054, PR China.
| | - Xiaoqiang Huang
- Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an 710054, PR China
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16
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Tsai FJ, Ho TJ, Cheng CF, Liu X, Tsang H, Lin TH, Liao CC, Huang SM, Li JP, Lin CW, Lin JG, Lin JC, Lin CC, Liang WM, Lin YJ. Effect of Chinese herbal medicine on stroke patients with type 2 diabetes. JOURNAL OF ETHNOPHARMACOLOGY 2017; 200:31-44. [PMID: 28213110 DOI: 10.1016/j.jep.2017.02.024] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 02/06/2017] [Accepted: 02/14/2017] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Complications of type 2 diabetes (T2D) include stroke, which is a cerebrovascular disturbance characterized by reduced blood flow in the brain, leading to death or physical disability. Chinese herbal medicine (CHM) has been widely used in ancient China for the treatment of diabetes and stroke by supplementing Qi and activating blood circulation. AIM OF THE STUDY This study aimed to investigate the frequencies and patterns of CHM treatment for stroke patients with T2D and the outcomes of long-term use in Taiwan. MATERIALS AND METHODS We identified 3079 stroke patients (ICD-9-CM: 430-438) with T2D. We allocated 618 stroke patients, matched for age, gender, and T2D-to-stroke duration, to both CHM and non-CHM groups. Chi-square test, conditional multivariable logistic regression, Kaplan-Meier method, and the log-rank test were used in this study. RESULTS The CHM group was characterized by more cases of chronic obstructive pulmonary disease, ulcer disease, hyperlipidemia, tobacco use, and higher income. The cumulative survival probability was higher in the CHM group (P<0.001, log rank test); after adjusting for comorbidities, income, and urbanization level, this group also exhibited a lower mortality hazard ratio (0.37, 95% confidence interval [0.25-0.55]). Shu-Jing-Huo-Xue-Tang, Xue-Fu-Zhu-Yu-Tang, and Du-Huo-Ji-Sheng-Tang; and Dan-Shen, Niu-Xi, and Yan-Hu-Suo represented the top three formulas and herbs, respectively. CONCLUSION The use of CHM as adjunctive therapy may improve the overall survival (OS) of stroke patients with T2D. The list of the comprehensive herbal medicines that they used might be useful in future large-scale, randomized clinical investigations of agent effectiveness, safety, and potential interactions with conventional treatments in stroke patients with T2D.
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Affiliation(s)
- Fuu-Jen Tsai
- School of Chinese Medicine, China Medical University, Taichung, Taiwan; Genetic Center, Department of Medical Research, China Medical University Hospital, Taichung, Taiwan; Asia University, Taichung, Taiwan
| | - Tsung-Jung Ho
- School of Chinese Medicine, China Medical University, Taichung, Taiwan; Division of Chinese Medicine, China Medical University Beigang Hospital, Yunlin, Taiwan; Division of Chinese Medicine, Tainan Municipal An-Nan Hospital-China Medical University, Tainan, Taiwan
| | - Chi-Fung Cheng
- Graduate Institute of Biostatistics, School of Public Health, China Medical University, Taichung, Taiwan
| | - Xiang Liu
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Hsinyi Tsang
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Ting-Hsu Lin
- Genetic Center, Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
| | - Chiu-Chu Liao
- Genetic Center, Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
| | - Shao-Mei Huang
- Genetic Center, Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
| | - Ju-Pi Li
- School of Chinese Medicine, China Medical University, Taichung, Taiwan; Rheumatism Research Center, China Medical University Hospital, Taichung, Taiwan
| | - Cheng-Wen Lin
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung, Taiwan
| | - Jaung-Geng Lin
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Jung-Chun Lin
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Chih-Chien Lin
- Department of Cosmetic Science, Providence University, Taichung, Taiwan
| | - Wen-Miin Liang
- Graduate Institute of Biostatistics, School of Public Health, China Medical University, Taichung, Taiwan.
| | - Ying-Ju Lin
- School of Chinese Medicine, China Medical University, Taichung, Taiwan; Genetic Center, Department of Medical Research, China Medical University Hospital, Taichung, Taiwan.
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17
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Nakanishi M, Nakae A, Kishida Y, Baba K, Sakashita N, Shibata M, Yoshikawa H, Hagihara K. Go-sha-jinki-Gan (GJG) ameliorates allodynia in chronic constriction injury-model mice via suppression of TNF-α expression in the spinal cord. Mol Pain 2016; 12:12/0/1744806916656382. [PMID: 27296622 PMCID: PMC4956397 DOI: 10.1177/1744806916656382] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Background Alternative medicine is noted for its clinical effect and minimal invasiveness in the treatment of neuropathic pain. Go-sha-jinki-Gan, a traditional Japanese herbal medicine, has been used for meralgia and numbness in elderly patients. However, the exact mechanism of GJG is unclear. This study aimed to investigate the molecular mechanism of the analgesic effect of GJG in a chronic constriction injury model. Results GJG significantly reduced allodynia and hyperalgesia from the early phase (von Frey test, p < 0.0001; cold-plate test, p < 0.0001; hot-plate test p = 0.011; two-way repeated measures ANOVA). Immunohistochemistry and Western blot analysis revealed that GJG decreased the expression of Iba1 and tumor necrosis factor-α in the spinal cord. Double staining immunohistochemistry showed that most of the tumor necrosis factor-α was co-expressed in Iba1-positive cells at day 3 post-operation. GJG decreased the phosphorylation of p38 in the ipsilateral dorsal horn. Moreover, intrathecal injection of tumor necrosis factor-α opposed the anti-allodynic effect of GJG in the cold-plate test. Conclusions Our data suggest that GJG ameliorates allodynia in chronic constriction injury model mice via suppression of tumor necrosis factor-α expression derived from activated microglia. GJG is a promising drug for the treatment of neuropathic pain induced by neuro-inflammation.
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Affiliation(s)
| | - Aya Nakae
- Osaka University Graduate School of medicineOsaka University Graduate School of medicineOsaka University Graduate School of medicineOsaka University Graduate School of medicine Osaka University Graduate School of Medicine Osaka University Graduate School of Medicine
| | | | | | | | | | | | - Keisuke Hagihara
- Osaka University Graduate School of medicineOsaka University Graduate School of medicineOsaka University Graduate School of medicineOsaka University Graduate School of medicine Osaka University Graduate School of Medicine Osaka University Graduate School of Medicine
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