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Wang Y, Bai M, Wang X, Peng Z, Cai C, Xi J, Yan C, Luo J, Li X. Gastrodin: a comprehensive pharmacological review. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:3781-3802. [PMID: 38165423 DOI: 10.1007/s00210-023-02920-9] [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: 10/08/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024]
Abstract
Tianma is the dried tuber of Gastrodia elata Blume (G. elata), which is frequently utilized in clinical practice as a traditional Chinese medicine. Gastrodin (GAS) is the main active ingredient of Tianma, which has good pharmacological activity. Therefore, for the first time, this review focused on the extraction, synthesis, pharmacological effects, and derivatives of GAS and to investigate additional development options for GAS. The use of microorganisms to create GAS is a promising method. GAS has good efficacy in the treatment of neurological diseases, cardiovascular diseases, endocrine diseases, and liver diseases. GAS has significant anti-inflammatory, antioxidant, neuroprotective, vascular protective, blood sugar lowering, lipid-regulating, analgesic, anticancer, and antiviral effects. The mechanism involves various signaling pathways such as Nrf2, NF-κB, PI3K/AKT, and AMPK. In addition, the derivatives of GAS and biomaterials synthesized by GAS and PU suggested a broader application of GAS. The research on GAS is thoroughly summarized in this paper, which has useful applications for tackling a variety of disorders and exhibits good development value.
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Affiliation(s)
- Yulin Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Mengting Bai
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xian Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Zhaolei Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Chunyan Cai
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Jingjing Xi
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Chunmei Yan
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Jia Luo
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Xiaofang Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
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Li Y, Ji Y, Li F. A review: Mechanism and prospect of gastrodin in prevention and treatment of T2DM and COVID-19. Heliyon 2023; 9:e21218. [PMID: 37954278 PMCID: PMC10637887 DOI: 10.1016/j.heliyon.2023.e21218] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 09/15/2023] [Accepted: 10/18/2023] [Indexed: 11/14/2023] Open
Abstract
Gastrodin is an extract from the dried tuber of the Chinese herb Gastrodia elata (Tian ma), with anti-inflammatory, antioxidant, and antiviral properties. Recent studies have shown that, compared to commonly used diabetes drugs, gastrodin has antidiabetic effects in multiple ways, with characteristics of low cost, high safety, less side effects, protection of β-cell function, relieving insulin resistance and alleviating multiple complications. In addition, it is confirmed that gastrodin can protect the function of lung and other organs, enhance antiviral activity via upregulating the type I interferon (IFN-I), and inhibit angiotensin II (AngII), a key factor in "cytokine storm" caused by COVID-19. Therefore, we reviewed the effect and mechanism of gastrodin on type 2 diabetes mellitus (T2DM), and speculated other potential mechanisms of gastrodin in alleviating insulin resistance from insulin signal pathway, inflammation, mitochondrial and endoplasmic reticulum and its potential in the prevention and treatment of COVID-19. We hope to provide new direction and treatment strategy for basic research and clinical work: gastrodin is considered as a drug for the prevention and treatment of diabetes and COVID-19.
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Affiliation(s)
- Yi Li
- Shanxi Provincial People's Hospital, Shanxi Medical University, Taiyuan, China
| | - Yuanyuan Ji
- Shanxi Provincial People's Hospital, Shanxi Medical University, Taiyuan, China
| | - Fenglan Li
- Shanxi Provincial People's Hospital, Shanxi Medical University, Taiyuan, China
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Xiao G, Tang R, Yang N, Chen Y. Review on pharmacological effects of gastrodin. Arch Pharm Res 2023; 46:744-770. [PMID: 37749449 DOI: 10.1007/s12272-023-01463-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 09/11/2023] [Indexed: 09/27/2023]
Abstract
Gastrodia elata Blume is a well-known traditional Chinese medicine that is mainly used to treat diseases related to the nervous system, such as stroke, epilepsy, and headache. Gastrodin is the main bioactive component of Gastrodia elata Blume, and studies have shown that it has extensive pharmacological activity. This narrative review aims to systematically review relevant studies on the pharmacological effects of gastrodin to provide researchers with the latest and most useful information. Studies have shown that gastrodin has prominent neuroprotective effects and can treat or improve epilepsy, Tourette syndrome, Alzheimer's disease, Parkinson's disease, emotional disorders, cerebral ischemia-reperfusion injury, cognitive impairment, and neuropathic pain. Gastrodin can also improve myocardial hypertrophy, hypertension, and myocardial ischemia-reperfusion injury. In addition, gastrodin can mitigate liver, kidney, and bone tissue damage caused by oxidative stress and inflammation. In short, gastrodin is expected to treat many diseases, and it is worth investing more effort in research on this compound.
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Affiliation(s)
- Guirong Xiao
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Rong Tang
- Department of Pharmacy, Sichuan Hospital of Stomatology, Chengdu, 610031, China.
| | - Nan Yang
- West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Yanhua Chen
- Department of Pharmacy, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, China.
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Mu ZH, Zhao ZM, Yang SS, Zhou L, Liu YD, Qian ZY, Liu XJ, Zhao PC, Tang RB, Li JY, Zeng JY, Yang ZH, Ruan YH, Zhang Y, Zeng YQ, Zou YY. Gastrodin ameliorates cognitive dysfunction in diabetes by inhibiting PAK2 phosphorylation. Aging (Albany NY) 2023; 15:8298-8314. [PMID: 37610708 PMCID: PMC10497015 DOI: 10.18632/aging.204970] [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: 02/17/2023] [Accepted: 07/14/2023] [Indexed: 08/24/2023]
Abstract
Diabetes is associated with higher prevalence of cognitive dysfunction, while the underlying mechanism is still elusive. In this study, we aim to explore the potential mechanism of diabetes-induced cognitive dysfunction and assess the therapeutic effects of Gastrodin on cognitive dysfunction. Diabetes was induced by a single injection of streptozotocin. The Morris Water Maze Test was employed to assess the functions of spatial learning and memory. Transcriptome was used to identify the potential factors involved. Western blot and immunofluorescence were applied to detect the protein expression. Our results have shown that spatial learning was impaired in diabetic rats, coupled with damaged hippocampal pyramidal neurons. Gastrodin intervention ameliorated the spatial learning impairments and neuronal damages. Transcriptomics analysis identified differential expression genes critical for diabetes-induced hippocampal damage and Gastrodin treatment, which were further confirmed by qPCR and western blot. Moreover, p21 activated kinase 2 (PAK2) was found to be important for diabetes-induced hippocampal injury and its inhibitor could promote the survival of primary hippocampal neurons. It suggested that PAK2 pathway may be involved in cognitive dysfunction in diabetes and could be a therapeutic target for Gastrodin intervention.
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Affiliation(s)
- Zhi-Hao Mu
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China
| | - Zhi-Min Zhao
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China
- Department of Pathology and Pathophysiology, Baoshan College of Traditional Chinese Medicine, Baoshan, China
| | - Su-Su Yang
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China
- College of Clinical Oncology, Kunming Medical University, Kunming, China
| | - Lei Zhou
- Academy of Biomedical Engineering, Kunming Medical University, Kunming, China
| | - Yi-Dan Liu
- Institute of Drug Discovery and Development, Kunming Pharmaceutical Corporation, Kunming, China
| | - Zhong-Yi Qian
- Department of Morphological Laboratory, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China
| | - Xin-Jie Liu
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China
- The Second Faculty of Clinical Medicine, Kunming Medical University, Kunming, China
| | - Peng-Chao Zhao
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China
- The First Faculty of Clinical Medicine, Kunming Medical University, Kunming, China
| | - Ren-Bo Tang
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China
- The Second Faculty of Clinical Medicine, Kunming Medical University, Kunming, China
| | - Jia-Yin Li
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China
- The Second Faculty of Clinical Medicine, Kunming Medical University, Kunming, China
| | - Jing-Yao Zeng
- The First Faculty of Clinical Medicine, Kunming Medical University, Kunming, China
| | - Zhi-Hong Yang
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China
| | - Yong-Hua Ruan
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China
| | - Ying Zhang
- School of Nursing, Kunming Medical University, Kunming, China
| | - Yue-Qin Zeng
- Academy of Biomedical Engineering, Kunming Medical University, Kunming, China
| | - Ying-Ying Zou
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Kunming Medical University, Kunming, China
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Gastrodin and Vascular Dementia: Advances and Current Perspectives. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:2563934. [PMID: 35463081 PMCID: PMC9019412 DOI: 10.1155/2022/2563934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 02/08/2022] [Accepted: 03/16/2022] [Indexed: 12/15/2022]
Abstract
Gastrodia elata, a traditional Chinese medicine, has been widely used since ancient times to treat diseases such as dizziness, epilepsy, stroke, and memory loss. Gastrodin, one of the active components of Gastrodia elata, has been used in the treatment of migraine, epilepsy, Parkinson's disease, dementia, and depression in recent years. It can improve cognitive function and related neuropsychiatric symptoms through various effects and is considered as a promising treatment for dementia. Vascular dementia is a kind of severe cognitive impairment syndrome caused by vascular factors, and it is the dementia syndrome with the largest number of patients besides Alzheimer's disease. Although there is still a lack of evidence-based explorations, the paper reviewed the mechanism and methods of gastrodin in the treatment of vascular dementia, providing a reference for clinical therapy.
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Lin Y, Ma HY, Wang Y, He J, Liu HJ. Identification of Potential Core Genes for the Rupture of Intracranial Aneurysms by a Bioinformatics Analysis. Front Genet 2022; 13:875007. [PMID: 35432454 PMCID: PMC9006073 DOI: 10.3389/fgene.2022.875007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 03/14/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Previous studies, using autopsy and angiography, have shown that 3.6–6% of the population have intracranial aneurysms, and the rupture of aneurysm can lead to brain dysfunction or even death in patients. Methods: To explore potential preventional target genes for the ruptured of aneurysm, we analyze three gene expression datasets (GSE13353, GSE15629 and GSE54083) derived from the GEO database. We confirm DEGs associated with the unrupture of aneurysms by R package. DAVID version provides functional classification and annotation analyses of associated genes, including GO and KEGG pathway. PPI of these DEGs is analyzed based on the string database and visualized by Cytoscape software. DEGs are verified by qRT-PCR using samples isolated from the patients. Results: 249 overlapping DEGs, including 96 up-regulated genes and 153 down-regulated genes are screened using the Venn diagram webtool. The GO term and KEGG pathways analysis results indicate that these DEGs are mainly enriched in protein phosphorylation, apoptotic process and inflammatory response in the BP term and focal adhesion, thyroid hormone signaling pathway, ErbB signaling pathway, cytokine-cytokine receptor interaction and some disease processes in the KEGG pathways. 6 candidates are confirmed by Cytoscape software and qRT-PCR, including APP, JUN, GSK3B, ErbB2, PPBP and THBS1. Conclusions: Our data and previous studies show that ErbB2 and THBS1 are crucial to prevent aneurysm rupture, while APP, JUN, GSK3B and PPBP performs the opposite role, and further experiments are needed to verify these findings.
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Wang X, Zhang B, Li X, Liu X, Wang S, Xie Y, Pi J, Yang Z, Li J, Jia Q, Zhang Y. Mechanisms Underlying Gastrodin Alleviating Vincristine-Induced Peripheral Neuropathic Pain. Front Pharmacol 2022; 12:744663. [PMID: 34975470 PMCID: PMC8716817 DOI: 10.3389/fphar.2021.744663] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 11/30/2021] [Indexed: 12/16/2022] Open
Abstract
Gastrodin (GAS) is the main bioactive ingredient of Gastrodia, a famous Chinese herbal medicine widely used as an analgesic, but the underlying analgesic mechanism is still unclear. In this study, we first observed the effects of GAS on the vincristine-induced peripheral neuropathic pain by alleviating the mechanical and thermal hyperalgesia. Further studies showed that GAS could inhibit the current density of NaV1.7 and NaV1.8 channels and accelerate the inactivation process of NaV1.7 and NaV1.8 channel, thereby inhibiting the hyperexcitability of neurons. Additionally, GAS could significantly reduce the over-expression of NaV1.7 and NaV1.8 on DRG neurons from vincristine-treated rats according to the analysis of Western blot and immunofluorescence results. Moreover, based on the molecular docking and molecular dynamic simulation, the binding free energies of the constructed systems were calculated, and the binding sites of GAS on the sodium channels (NaV1.7 and NaV1.8) were preliminarily determined. This study has shown that modulation of NaV1.7 and NaV1.8 sodium channels by GAS contributing to the alleviation of vincristine-induced peripheral neuropathic pain, thus expanding the understanding of complex action of GAS as a neuromodulator.
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Affiliation(s)
- Xiangyu Wang
- Departments of Pharmacology, Hebei Medical University, Shijiazhuang, China
| | - Boxuan Zhang
- Departments of Pharmacology, Hebei Medical University, Shijiazhuang, China
| | - Xuedong Li
- School of Pharmacy, Hebei Medical University, Shijiazhuang, China.,Laboratory of Neural and Vascular Biology of Ministry of Education, Hebei Medical University, Shijiazhuang, China
| | - Xingang Liu
- Departments of Pharmacology, Hebei Medical University, Shijiazhuang, China
| | - Songsong Wang
- Departments of Pharmacology, Hebei Medical University, Shijiazhuang, China
| | - Yuan Xie
- Departments of Pharmacology, Hebei Medical University, Shijiazhuang, China
| | - Jialing Pi
- Departments of Pharmacology, Hebei Medical University, Shijiazhuang, China
| | - Zhiyuan Yang
- Departments of Pharmacology, Hebei Medical University, Shijiazhuang, China
| | - Jincan Li
- Departments of Pharmacology, Hebei Medical University, Shijiazhuang, China
| | - Qingzhong Jia
- Departments of Pharmacology, Hebei Medical University, Shijiazhuang, China.,School of Pharmacy, Hebei Medical University, Shijiazhuang, China.,Key Laboratory of Innovative Drug Research and Evaluation of Hebei Province, Shijiazhuang, China.,Laboratory of Neural and Vascular Biology of Ministry of Education, Hebei Medical University, Shijiazhuang, China
| | - Yang Zhang
- School of Pharmacy, Hebei Medical University, Shijiazhuang, China.,Laboratory of Neural and Vascular Biology of Ministry of Education, Hebei Medical University, Shijiazhuang, China
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Berezutsky M, Durnova N, Romanteeva Y. Neurobiological effects of gastrodin and its possible use in neurology and psychiatry. Zh Nevrol Psikhiatr Im S S Korsakova 2022; 122:27-34. [DOI: 10.17116/jnevro202212208127] [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]
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Bai Y, Mo K, Wang G, Chen W, Zhang W, Guo Y, Sun Z. Intervention of Gastrodin in Type 2 Diabetes Mellitus and Its Mechanism. Front Pharmacol 2021; 12:710722. [PMID: 34603025 PMCID: PMC8481818 DOI: 10.3389/fphar.2021.710722] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 09/06/2021] [Indexed: 01/14/2023] Open
Abstract
As a severe metabolic disease, type 2 diabetes mellitus (T2DM) has become a serious threat to human health in recent years. Gastrodin, as a primary chemical constituent in Gastrodia elata Blume, has antidiabetic effects. However, the possible mechanisms are unclear. The aim of the present study was to investigate the effects and possible mechanisms of gastrodin on the treatment of T2DM. In vivo, after treatment with gastrodin for 6 weeks, fasting blood glucose levels, blood lipid metabolism, and insulin sensitivity index values were remarkably reduced compared with those of the diabetic control group. The values of aspartate aminotransferase and alanine aminotransferase also showed that gastrodin alleviates liver toxicity caused by diabetes. Moreover, gastrodin relieved pathological damage to the pancreas in T2DM rats. In vitro, gastrodin alleviated insulin resistance by increasing glucose consumption, glucose uptake, and glycogen content in dexamethasone-induced HepG2 cells. The Western blotting results showed that gastrodin upregulated the expression of insulin receptors and ubiquitin-specific protease 4 (USP4) and increased the phosphorylation of GATA binding protein 1 (GATA1) and protein kinase B (AKT) in vivo and in vitro. Furthermore, gastrodin decreased the ubiquitin level of the insulin receptor via UPS4 and increased the binding of GATA1 to the USP4 promoter. Additionally, administration of the phosphatidylinositol 3-kinase (PI3K)/AKT signaling pathway inhibitors MK-2206 and LY294002 abolished the beneficial effects of gastrodin. Our results indicate that gastrodin promotes the phosphorylation of GATA1 via the PI3K/AKT pathway, enhances the transcriptional activity of GATA1, and then increases the expression level of USP4, thereby reducing the ubiquitination and degradation of insulin receptors and ultimately improving insulin resistance. Our study provides scientific evidence for the beneficial actions and underlying mechanism of gastrodin in the treatment of T2DM.
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Affiliation(s)
- Yu Bai
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Ke Mo
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Guirong Wang
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Wanling Chen
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Wei Zhang
- Ningqiang Chinese Herbal Medicine Industry Development Center, Hanzhong, China
| | - Yibo Guo
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Zhirong Sun
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing, China
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Deng CK, Mu ZH, Miao YH, Liu YD, Zhou L, Huang YJ, Zhang F, Wang YY, Yang ZH, Qian ZY, Wang X, Guo JZ, Zhang MY, Liao XY, Wan Q, Lu D, Zou YY. Gastrodin Ameliorates Motor Learning Deficits Through Preserving Cerebellar Long-Term Depression Pathways in Diabetic Rats. Front Neurosci 2019; 13:1239. [PMID: 31824244 PMCID: PMC6883220 DOI: 10.3389/fnins.2019.01239] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Accepted: 11/01/2019] [Indexed: 01/21/2023] Open
Abstract
Cognitive dysfunction is a very severe consequence of diabetes, but the underlying causes are still unclear. Recently, the cerebellum was reported to play an important role in learning and memory. Since long-term depression (LTD) is a primary cellular mechanism for cerebellar motor learning, we aimed to explore the role of cerebellar LTD pathways in diabetic rats and the therapeutic effect of gastrodin. Diabetes was induced by a single injection of streptozotocin into adult Sprague-Dawley rats. Motor learning ability was assessed by a beam walk test. Pathological changes of the cerebellum were assessed by Hematoxylin-Eosin (HE) and Nissl staining. Cellular apoptosis was assessed by anti-caspase-3 immunostaining. Protein expression levels of LTD pathway-related factors, including GluR2, protein kinase C (PKC), NR2A, and nNOS, in the cerebellar cortex were evaluated by western blotting and double immunofluorescence. The NO concentration was measured. The cellular degeneration and the apoptosis of Purkinje cells were evident in the cerebellum of diabetic rats. Protein expression levels of GluR2 (NC9W: 1.26 ± 0.12; DM9W + S: 0.81 ± 0.07), PKC (NC9W: 1.66 ± 0.10; DM9W + S: 0.58 ± 0.19), NR2A (NC9W: 1.40 ± 0.05; DM9W + S: 0.63 ± 0.06), nNOS (NC9W: 1.26 ± 0.12; DM9W + S: 0.68 ± 0.04), and NO (NC9W: 135.61 ± 31.91; DM9W + S: 64.06 ± 24.01) in the cerebellum were significantly decreased in diabetic rats. Following gastrodin intervention, the outcome of motor learning ability was significantly improved (NC9W: 6.70 ± 3.31; DM9W + S: 20.47 ± 9.43; DM9W + G: 16.04 ± 7.10). In addition, degeneration and apoptosis were ameliorated, and this was coupled with the elevation of the protein expression of the abovementioned biomarkers. Arising from the above, we concluded that gastrodin may contribute to the improvement of motor learning by protecting the LTD pathways in Purkinje cells.
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Affiliation(s)
- Cheng-Kun Deng
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China.,Department of Thoracic Surgery, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Zhi-Hao Mu
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China
| | - Yi-He Miao
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China.,Department of Orthopedics, The Fifth Affiliated Hospital, Kunming Medical University, Kunming, China
| | - Yi-Dan Liu
- Institute of Drug Discovery and Development, Kunming Pharmaceutical Corporation, Kunming, China
| | - Lei Zhou
- The Key Laboratory of Stem Cell and Regenerative Medicine of Yunnan Province, Kunming Medical University, Kunming, China
| | - Yong-Jie Huang
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China.,Emergency Department, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Fan Zhang
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China.,The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yao-Yi Wang
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China.,The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Zhi-Hong Yang
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China
| | - Zhong-Yi Qian
- Department of Morphological Laboratory, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China
| | - Xie Wang
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China
| | - Jia-Zhi Guo
- Biomedical Engineering Research Center, Kunming Medical University, Kunming, China
| | - Mei-Yan Zhang
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China
| | - Xin-Yu Liao
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China
| | - Qi Wan
- Institute of Neuroregeneration and Neurorehabilitation, Department of Neurosurgery of the Affiliated Hospital, Qingdao University, Qingdao, China
| | - Di Lu
- Biomedical Engineering Research Center, Kunming Medical University, Kunming, China
| | - Ying-Ying Zou
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Kunming, China
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