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Gong G, Ganesan K, Wan Y, Liu Y, Huang Y, Luo Y, Wang X, Zhang Z, Zheng Y. Unveiling the neuroprotective properties of isoflavones: current evidence, molecular mechanisms and future perspectives. Crit Rev Food Sci Nutr 2024:1-37. [PMID: 38794836 DOI: 10.1080/10408398.2024.2357701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2024]
Abstract
Neurodegenerative diseases encompass a wide range of debilitating and incurable brain disorders characterized by the progressive deterioration of the nervous system's structure and function. Isoflavones, which are naturally occurring polyphenolic phytochemicals, have been found to regulate various cellular signaling pathways associated with the nervous system. The main objective of this comprehensive review is to explore the neuroprotective effects of isoflavones, elucidate the underlying mechanisms, and assess their potential for treating neurodegenerative disorders. Relevant data regarding isoflavones and their impact on neurodegenerative diseases were gathered from multiple library databases and electronic sources, including PubMed, Google Scholar, Web of Science, and Science Direct. Numerous isoflavones, including genistein, daidzein, biochanin A, and formononetin, have exhibited potent neuroprotective properties against various neurodegenerative diseases. These compounds have been found to modulate neurotransmitters, which in turn contributes to their ability to protect against neurodegeneration. Both in vitro and in vivo experimental studies have provided evidence of their neuroprotection mechanisms, which involve interactions with estrogenic receptors, antioxidant effects, anti-inflammatory properties, anti-apoptotic activity, and modulation of neural plasticity. This review aims to provide current insights into the neuroprotective characteristics of isoflavones and shed light on their potential therapeutic applications in future clinical scenarios.
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Affiliation(s)
- Guowei Gong
- Department of Bioengineering, Zunyi Medical University, Zhuhai Campus, China
- Guangdong Key Laboratory for Functional Substances in Medicinal Edible Resources and Healthcare Products, School of Life Sciences and Food Engineering, Hanshan Normal University, Chaozhou, China
| | - Kumar Ganesan
- School of Chinese Medicine, The Hong Kong University, Hong Kong SAR, China
| | - Yukai Wan
- Second Clinical Medical College of Guangzhou, University of Traditional Chinese Medicine, Guangzhou, China
| | - Yaqun Liu
- Guangdong Key Laboratory for Functional Substances in Medicinal Edible Resources and Healthcare Products, School of Life Sciences and Food Engineering, Hanshan Normal University, Chaozhou, China
| | - Yongping Huang
- Guangdong Key Laboratory for Functional Substances in Medicinal Edible Resources and Healthcare Products, School of Life Sciences and Food Engineering, Hanshan Normal University, Chaozhou, China
| | - Yuting Luo
- Guangdong Key Laboratory for Functional Substances in Medicinal Edible Resources and Healthcare Products, School of Life Sciences and Food Engineering, Hanshan Normal University, Chaozhou, China
| | - Xuexu Wang
- Guangdong Key Laboratory for Functional Substances in Medicinal Edible Resources and Healthcare Products, School of Life Sciences and Food Engineering, Hanshan Normal University, Chaozhou, China
| | - Zhenxia Zhang
- Guangdong Key Laboratory for Functional Substances in Medicinal Edible Resources and Healthcare Products, School of Life Sciences and Food Engineering, Hanshan Normal University, Chaozhou, China
| | - Yuzhong Zheng
- Guangdong Key Laboratory for Functional Substances in Medicinal Edible Resources and Healthcare Products, School of Life Sciences and Food Engineering, Hanshan Normal University, Chaozhou, China
- Guangdong East Drug and Food and Health Branch, Chaozhou, China
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Shirvanian K, Vali R, Farkhondeh T, Abderam A, Aschner M, Samarghandian S. Genistein Effects on Various Human Disorders Mediated via Nrf2 Signaling. Curr Mol Med 2024; 24:40-50. [PMID: 36443970 DOI: 10.2174/1566524023666221128162753] [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: 04/12/2022] [Revised: 08/03/2022] [Accepted: 09/14/2022] [Indexed: 11/30/2022]
Abstract
Genistein is a flavonoid, mostly found in soybean extract and is widely used for its antioxidant and anti-inflammatory activities. Genistein can interact with estrogen receptors due to its structural similarities to estrogen. It also inhibits protein tyrosine kinases and affects a variety of intracellular signal transductions. Genistein attenuates oxidative stress via diverse cellular mechanisms. However, nuclear factor (erythroidderived 2)-like 2 (Nrf2), the main antioxidant regulator, potentiates genistein's antioxidant effects and reduces cell damage. Nrf2 includes of seven domains and controls the expression of the phase II antioxidant enzymes to decrease oxidative stress. In this review, we address findings related to Nrf2 signaling pathways in the context of genistein's effects on diverse human diseases.
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Affiliation(s)
- Kasra Shirvanian
- School of Biology, College of science, University of Tehran, Tehran, Iran
| | - Reyhaneh Vali
- Department of Biology, Faculty of Modern Sciences, Tehran Medical Branch, Islamic Azad University, Tehran, Iran
| | - Tahereh Farkhondeh
- Department of Toxicology and Pharmacology, School of Pharmacy, Birjand University of Medical Sciences, Birjand, Iran
| | - Amir Abderam
- Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Forchheimer 209 1300 Morris Park Avenue, Bronx, New York, USA
| | - Saeed Samarghandian
- Healthy Ageing Research Centre, Neyshabur University of Medical Sciences, Neyshabur, Iran
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Barreca MM, Alessandro R, Corrado C. Effects of Flavonoids on Cancer, Cardiovascular and Neurodegenerative Diseases: Role of NF-κB Signaling Pathway. Int J Mol Sci 2023; 24:ijms24119236. [PMID: 37298188 DOI: 10.3390/ijms24119236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 05/17/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
Flavonoids are polyphenolic phytochemical compounds found in many plants, fruits, vegetables, and leaves. They have a multitude of medicinal applications due to their anti-inflammatory, antioxidative, antiviral, and anticarcinogenic properties. Furthermore, they also have neuroprotective and cardioprotective effects. Their biological properties depend on the chemical structure of flavonoids, their mechanism of action, and their bioavailability. The beneficial effects of flavonoids have been proven for a variety of diseases. In the last few years, it is demonstrated that the effects of flavonoids are mediated by inhibiting the NF-κB (Nuclear Factor-κB) pathway. In this review, we have summarized the effects of some flavonoids on the most common diseases, such as cancer, cardiovascular, and human neurodegenerative diseases. Here, we collected all recent studies describing the protective and prevention role of flavonoids derived from plants by specifically focusing their action on the NF-κB signaling pathway.
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Affiliation(s)
- Maria Magdalena Barreca
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), Section of Biology and Genetics, University of Palermo, 90133 Palermo, Italy
| | - Riccardo Alessandro
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), Section of Biology and Genetics, University of Palermo, 90133 Palermo, Italy
| | - Chiara Corrado
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), Section of Biology and Genetics, University of Palermo, 90133 Palermo, Italy
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Josifovska S, Panov S, Hadzi-Petrushev N, Mitrokhin V, Kamkin A, Stojchevski R, Avtanski D, Mladenov M. Positive Tetrahydrocurcumin-Associated Brain-Related Metabolomic Implications. Molecules 2023; 28:molecules28093734. [PMID: 37175144 PMCID: PMC10179939 DOI: 10.3390/molecules28093734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/22/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
Tetrahydrocurcumin (THC) is a metabolite of curcumin (CUR). It shares many of CUR's beneficial biological activities in addition to being more water-soluble, chemically stable, and bioavailable compared to CUR. However, its mechanisms of action have not been fully elucidated. This paper addresses the preventive role of THC on various brain dysfunctions as well as its effects on brain redox processes, traumatic brain injury, ischemia-reperfusion injury, Alzheimer's disease, and Parkinson's disease in various animal or cell culture models. In addition to its strong antioxidant properties, the effects of THC on the reduction of amyloid β aggregates are also well documented. The therapeutic potential of THC to treat patterns of mitochondrial brain dysmorphic dysfunction is also addressed and thoroughly reviewed, as is evidence from experimental studies about the mechanism of mitochondrial failure during cerebral ischemia/reperfusion injury. THC treatment also results in a dose-dependent decrease in ERK-mediated phosphorylation of GRASP65, which prevents further compartmentalization of the Golgi apparatus. The PI3K/AKT signaling pathway is possibly the most involved mechanism in the anti-apoptotic effect of THC. Overall, studies in various animal models of different brain disorders suggest that THC can be used as a dietary supplement to protect against traumatic brain injury and even improve brain function in Alzheimer's and Parkinson's diseases. We suggest further preclinical studies be conducted to demonstrate the brain-protective, anti-amyloid, and anti-Parkinson effects of THC. Application of the methods used in the currently reviewed studies would be useful and should help define doses and methods of THC administration in different disease conditions.
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Affiliation(s)
- Slavica Josifovska
- Faculty of Natural Sciences and Mathematics, Institute of Biology, Ss. Cyril and Methodius University, 1000 Skopje, North Macedonia
| | - Sasho Panov
- Faculty of Natural Sciences and Mathematics, Institute of Biology, Ss. Cyril and Methodius University, 1000 Skopje, North Macedonia
| | - Nikola Hadzi-Petrushev
- Faculty of Natural Sciences and Mathematics, Institute of Biology, Ss. Cyril and Methodius University, 1000 Skopje, North Macedonia
| | - Vadim Mitrokhin
- Department of Physiology, Pirogov Russian National Research Medical University, Ostrovityanova Street, 1, 117997 Moscow, Russia
| | - Andre Kamkin
- Department of Physiology, Pirogov Russian National Research Medical University, Ostrovityanova Street, 1, 117997 Moscow, Russia
| | - Radoslav Stojchevski
- Friedman Diabetes Institute, Lenox Hill Hospital, Northwell Health, 110 E 59th Street, New York, NY 10022, USA
| | - Dimiter Avtanski
- Friedman Diabetes Institute, Lenox Hill Hospital, Northwell Health, 110 E 59th Street, New York, NY 10022, USA
| | - Mitko Mladenov
- Faculty of Natural Sciences and Mathematics, Institute of Biology, Ss. Cyril and Methodius University, 1000 Skopje, North Macedonia
- Department of Physiology, Pirogov Russian National Research Medical University, Ostrovityanova Street, 1, 117997 Moscow, Russia
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Paramanik V, Kurrey K, Singh P, Tiwari S. Roles of genistein in learning and memory during aging and neurological disorders. Biogerontology 2023; 24:329-346. [PMID: 36828983 DOI: 10.1007/s10522-023-10020-7] [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: 10/09/2022] [Accepted: 01/23/2023] [Indexed: 02/26/2023]
Abstract
Genistein (GEN) is a non-steroidal phytoestrogen that belongs to the isoflavone class. It is abundantly found in soy. Soy and its products are used as food components in many countries including India. The present review is focused to address roles of GEN in brain functions in the context of learning and memory as a function of aging and neurological disorders. Memory decline is one of the most disabling features observed during normal aging and age-associated neurodegenerative disorders namely Alzheimer's disease (AD) and Parkinson's disease (PD), etc. Anatomical, physiological, biochemical and molecular changes in the brain with advancement of age and pathological conditions lead to decline of cognitive functions. GEN is chemically comparable to estradiol and binds to estrogen receptors (ERs). GEN acts through ERs and mimics estrogen action. After binding to ERs, GEN regulates a plethora of brain functions including learning and memory; however detailed study still remains elusive. Due to the neuroprotective, anti-oxidative and anti-inflammatory properties, GEN is used to restore or improve memory functions in different animal models and humans. The present review may be helpful to understand roles of GEN in learning and memory during aging and neurological disorders, its direction of research and therapeutic perspectives.
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Affiliation(s)
- Vijay Paramanik
- Cellular and Molecular Neurobiology & Drug Targeting Laboratory, Department of Zoology, Indira Gandhi National Tribal University, Amarkantak, 484 887, MP, India.
| | - Khuleshwari Kurrey
- Department of Psychiatry and Behavioral Sciences, Neurobiology Division, John Hopkins University, School of Medicine, Baltimore, MD, 21287, USA
| | - Padmanabh Singh
- Cellular and Molecular Neurobiology & Drug Targeting Laboratory, Department of Zoology, Indira Gandhi National Tribal University, Amarkantak, 484 887, MP, India
| | - Sneha Tiwari
- Cellular and Molecular Neurobiology & Drug Targeting Laboratory, Department of Zoology, Indira Gandhi National Tribal University, Amarkantak, 484 887, MP, India
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Shi B, Chen M, Xia Z, Tang W, Li Y, Qin C, Ahmadi A, Huang C, Xu H. Genistein attenuates neuroinflammation and oxidative stress and improves cognitive impairment in a rat model of sepsis-associated encephalopathy: potential role of the Nrf2 signaling pathway. Metab Brain Dis 2023; 38:339-347. [PMID: 36301457 DOI: 10.1007/s11011-022-01076-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 08/30/2022] [Indexed: 02/03/2023]
Abstract
Oxidative stress and inflammation seem to be the main factors responsible for cognitive impairment in sepsis. Genistein (GEN) is claimed to exert many beneficial effects on health, however, its possible effects on brain sepsis remains unclear. Here, we assess the influence and underling mechanisms of GEN on cognitive impairments in cecal ligation and puncture (CLP)-induced septic model. Rats were randomly divided into Sham, Sham + GEN, CLP, CLP + GEN gropus. Rats were treated with GEN (15 mg/kg at 0 and 12 h after CLP, i.p). Twenty-four hours after CLP, protein levels of cytokines, NF-kB and Nrf2, myeloperoxidase (MPO) activity, oxidative damage to lipids and proteins, the activities of antioxidant enzymes and the expression of Nrf2-target genes were evaluated in the hippocampus. At 10 days after sepsis induction, behavioral tests were conducted to evaluate cognitive impairment. The results indicate that GEN can enhance survival percentage and improve cognitive function. Genistein administration significantly reduced TNF-α and IL-1β levels, MPO activity and protein level of NF-kB in the hippocampus of septic rats. Genistein also decreased the levels of oxidative stress parameters (MDA and protein carbonyls) and elevated the activities of the antioxidant enzymes superoxide dismutase (SOD) and catalase (CAT) in septic rats. Furthermore, nuclear Nrf2 and the expression of HO-1 and NQO-1 were also elevated by GEN treatment. These findings suggest that GEN improves cognition impairment in septic rats via decreasing inflammatory responses and oxidative stress, and activation of the Nrf2 pathway.
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Affiliation(s)
- Buyun Shi
- Department of Pediatric Intensive Care Unit (PICU), Maternal and Child Health Hospital of Hubei Province (Women and Children's Hospital of Hubei Province), NO.745 Wuluo Road, Hongshan District, 430070, Wuhan City, Hubei Province, China
| | - Ming Chen
- Department of Dermatology, Maternal and Child Health Hospital of Hubei Province (Women and Children's Hospital of Hubei Province), NO.745 Wuluo Road, Hongshan District, Wuhan City, China
| | - Zhi Xia
- Department of Pediatric Intensive Care Unit (PICU), Maternal and Child Health Hospital of Hubei Province (Women and Children's Hospital of Hubei Province), NO.745 Wuluo Road, Hongshan District, 430070, Wuhan City, Hubei Province, China
| | - Wen Tang
- Department of Pediatric Intensive Care Unit (PICU), Maternal and Child Health Hospital of Hubei Province (Women and Children's Hospital of Hubei Province), NO.745 Wuluo Road, Hongshan District, 430070, Wuhan City, Hubei Province, China
| | - Yong Li
- Department of Pediatric Intensive Care Unit (PICU), Maternal and Child Health Hospital of Hubei Province (Women and Children's Hospital of Hubei Province), NO.745 Wuluo Road, Hongshan District, 430070, Wuhan City, Hubei Province, China
| | - Chenguang Qin
- Department of Pediatric Intensive Care Unit (PICU), Maternal and Child Health Hospital of Hubei Province (Women and Children's Hospital of Hubei Province), NO.745 Wuluo Road, Hongshan District, 430070, Wuhan City, Hubei Province, China
| | - Amir Ahmadi
- Department of Pharmacy and Molecular Sciences, Faculty of Sciences, University of Shiraz, Shiraz, Iran
| | - Chengjiao Huang
- Department of Pediatric Intensive Care Unit (PICU), Maternal and Child Health Hospital of Hubei Province (Women and Children's Hospital of Hubei Province), NO.745 Wuluo Road, Hongshan District, 430070, Wuhan City, Hubei Province, China
| | - Hui Xu
- Department of Pediatric Intensive Care Unit (PICU), Maternal and Child Health Hospital of Hubei Province (Women and Children's Hospital of Hubei Province), NO.745 Wuluo Road, Hongshan District, 430070, Wuhan City, Hubei Province, China.
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Therapeutic Potential and Mechanisms of Novel Simple O-Substituted Isoflavones against Cerebral Ischemia Reperfusion. Int J Mol Sci 2022; 23:ijms231810394. [PMID: 36142301 PMCID: PMC9498989 DOI: 10.3390/ijms231810394] [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: 08/02/2022] [Revised: 09/02/2022] [Accepted: 09/06/2022] [Indexed: 11/17/2022] Open
Abstract
Isoflavones have been widely studied and have attracted extensive attention in fields ranging from chemotaxonomy and plant physiology to human nutrition and medicine. Isoflavones are often divided into three subgroups: simple O-substituted derivatives, prenylated derivatives, and glycosides. Simple O-substituted isoflavones and their glycosides, such as daidzein (daidzin), genistein (genistin), glycitein (glycitin), biochanin A (astroside), and formononetin (ononin), are the most common ingredients in legumes and are considered as phytoestrogens for daily dietary hormone replacement therapy due to their structural similarity to 17-β-estradiol. On the basis of the known estrogen-like potency, these above isoflavones possess multiple pharmacological activities such as antioxidant, anti-inflammatory, anticancer, anti-angiogenetic, hepatoprotective, antidiabetic, antilipidemic, anti-osteoporotic, and neuroprotective activities. However, there are very few review studies on the protective effects of these novel isoflavones and their related compounds in cerebral ischemia reperfusion. This review primarily focuses on the biosynthesis, metabolism, and neuroprotective mechanism of these aforementioned novel isoflavones in cerebral ischemia reperfusion. From these published works in in vitro and in vivo studies, simple O-substituted isoflavones could serve as promising therapeutic compounds for the prevention and treatment of cerebral ischemia reperfusion via their estrogenic receptor properties and neuron-modulatory, antioxidant, anti-inflammatory, and anti-apoptotic effects. The detailed mechanism of the protective effects of simple O-substituted isoflavones against cerebral ischemia reperfusion might be related to the PI3K/AKT/ERK/mTOR or GSK-3β pathway, eNOS/Keap1/Nrf-2/HO-1 pathway, TLRs/TIRAP/MyD88/NFκ-B pathway, and Bcl-2-regulated anti-apoptotic pathway. However, clinical trials are needed to verify their potential on cerebral ischemia reperfusion because past studies were conducted with rodents and prophylactic administration.
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Li R, Robinson M, Ding X, Geetha T, Al-Nakkash L, Broderick TL, Babu JR. Genistein: A focus on several neurodegenerative diseases. J Food Biochem 2022; 46:e14155. [PMID: 35460092 DOI: 10.1111/jfbc.14155] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/15/2022] [Accepted: 03/17/2022] [Indexed: 12/14/2022]
Abstract
Neurodegenerative diseases are caused by the progressive loss of function or structure of nerve cells in the central nervous system. The most common neurodegenerative diseases include Alzheimer's disease, Huntington's disease, motor neuron disease, and Parkinson's disease. Although the physical or mental symptoms of neurodegenerative disease may be relieved by various treatment combinations, there are currently no strategies to directly slow or prevent neurodegeneration. Given the demographic evidence of a rapidly growing aging population and the associated prevalence of these common neurodegenerative diseases, it is paramount to develop safe and effective ways to protect against neurodegenerative diseases. Most neurodegenerative diseases share some common etiologies such as oxidative stress, neuroinflammation, and mitochondrial dysfunction. Genistein is an isoflavone found in soy products that have been shown to exhibit antioxidant, anti-inflammation, and estrogenic properties. Increasing evidence indicates the protective potential of genistein in neurodegenerative disorders. In this review, we aim to provide an overview of the role that genistein plays in delaying the development of neurodegenerative disease. PRACTICAL APPLICATIONS: Genistein is a naturally occurring isoflavone found mainly in soybean, but also green peas, legumes, and peanuts. Genistein is found to pass through the blood-brain barrier and possess a neuroprotective effect. In this review, we discuss studies in support of these actions and the underlying biological mechanisms. Together, these data indicate that genistein may hold neuroprotective effects in either delaying the onset or relieving the symptoms of neurodegenerative disease.
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Affiliation(s)
- Rongzi Li
- Department of Nutrition, Dietetics, and Hospitality Management, Auburn University, Auburn, Alabama, USA
| | - Megan Robinson
- Department of Nutrition, Dietetics, and Hospitality Management, Auburn University, Auburn, Alabama, USA
| | - Xiaowen Ding
- Department of Nutrition, Dietetics, and Hospitality Management, Auburn University, Auburn, Alabama, USA
| | - Thangiah Geetha
- Department of Nutrition, Dietetics, and Hospitality Management, Auburn University, Auburn, Alabama, USA
- Boshell Metabolic Diseases and Diabetes Program, Auburn University, Auburn, Alabama, USA
| | - Layla Al-Nakkash
- Department of Physiology, College of Graduate Studies, Midwestern University, Glendale, Arizona, USA
| | - Tom L Broderick
- Department of Physiology, Laboratory of Diabetes and Exercise Metabolism College of Graduate Studies, Midwestern University, Glendale, Arizona, USA
| | - Jeganathan Ramesh Babu
- Department of Nutrition, Dietetics, and Hospitality Management, Auburn University, Auburn, Alabama, USA
- Boshell Metabolic Diseases and Diabetes Program, Auburn University, Auburn, Alabama, USA
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Quercetin inhibits cytotoxicity of PC12 cells induced by amyloid-beta 25–35 via stimulating estrogen receptor α, activating ERK1/2, and inhibiting apoptosis. Open Life Sci 2022. [DOI: 10.1515/biol-2021-0014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
The accumulation of β-amyloid (Aβ) in the brain plays an important role in the pathogenesis of Alzheimer’s disease (AD). The lack of estrogen is one of the risk factors for AD. Quercetin is a phytoestrogen with a chemical structure similar to that of estrogen. However, the mechanism by which quercetin prevents AD is unclear. PC12 cells were cultured with Aβ25–35 for 24 h. Then the cells were further treated with 17β-estradiol, genistein, and quercetin for another 24 h, respectively. Next, ICI182780 and U0126 were used to study the mechanisms of estrogen-like neuroprotection. Methyl thiazolyl tetrazolium (MTT) assay was performed to detect cell survival. The protein expression was analyzed by immunofluorescence and western blot. The survival of PC12 cells induced by Aβ25–35 was increased by quercetin. The levels of estrogen receptor α (ERα) and p-extracellular signal-regulated kinase (ERK)1/2 were improved by quercetin, but not those of ERβ. On the contrary, Bcl-2/Bax was increased and the expression of Caspase-3 was decreased. When the cell was pretreated with ICI182780, the p-ERK1/2 and Bcl-2/Bax ratio was decreased, but Caspase-3 expression was increased. In addition, pretreatment with U0126 would reduce Bcl-2/Bax ratio and increase Caspase-3 protein expression. Conclusively, quercetin plays a neuroprotective role through the ER pathway and the mitogen-activated protein kinase (MAPK) pathway. The MAPK signaling pathways could also be activated by quercetin via the mediation of ERα.
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Bal E, Hanalıoğlu Ş, Sinan Apaydın A, Bal C, Şenat A, Gümüşkaya B, Bahadır B, Türkoğlu ÖF. Can chlorogenic acid reduce oxidative stress and in an experimental spinal cord injury? ULUS TRAVMA ACIL CER 2022; 28:125-133. [PMID: 35099038 PMCID: PMC10443138 DOI: 10.14744/tjtes.2020.89499] [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: 09/11/2020] [Accepted: 11/02/2020] [Indexed: 11/20/2022]
Abstract
BACKGROUND We aimed to investigate antioxidant and neuroprotective properties of chlorogenic acid in spinal cord injury (SCI). METHODS Twenty-one rats were divided into three groups. Laminectomy was performed in group L (n=7), spinal cord trauma was induced in group T (n=7), and spinal cord trauma was induced and chlorogenic acid treatment was started in group C (n=7). Blood samples were collected to analyze baseline values and the 12th h, 1st day, 3rd day, and 5th day catalase, native thiol (NT), total thiol (TT), disulfide (SS), SS/TT, SS/NT, and NT/TT levels. Functional analysis with Basso-Beattie and Bresnahan scores was performed at the same time points. Total antioxidant status (TAS), total oxidative stress, oxidative stress index, and cyclooxygenase-2 (Cox-2) were examined in the spinal cord of rats euthanized on day 7; results were statistically analyzed. RESULTS On day 7, catalase levels in Group C were significantly higher than baseline levels, whereas those in Group T were significantly lower than baseline levels; Group L showed no significant difference (p=0.008). SS values on day 7 were lower in Group T than in Groups C and L. Group C showed the lowest decrease in NT/TT level after trauma. On day 7, SS/TT level was high in Group T but stable in Groups C and L (p=0.04). Histopathological examination revealed significantly lower Cox-2 and TAS levels in Group C than in Group T (p=0.003, p=0.017, respectively). CONCLUSION In this study, SCI was primarily examined through thiol-SS balance, and it was demonstrated by experimental models that chlorogenic acid has antioxidant and neuroprotective effects in SCI.
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Affiliation(s)
- Ercan Bal
- Department of Neurosurgery, Ankara Yıldırım Beyazıt University Faculty of Medicine, Ankara-Turkey
| | - Şahin Hanalıoğlu
- Department of Neurosurgery, Ankara Hacettepe University Faculty of Medicine, Ankara-Turkey
| | | | - Ceylan Bal
- Department of Biochemistry, Ankara Yıldırım Beyazıt University Faculty of Medicine, Ankara-Turkey
| | - Almila Şenat
- Department of Biochemistry, Ankara Yıldırım Beyazıt University Faculty of Medicine, Ankara-Turkey
| | - Berrak Gümüşkaya
- Department of Pathology, Ankara Yıldırım Beyazıt University Faculty of Medicine, Ankara-Turkey
| | - Burak Bahadır
- Department of Neurosurgery, Ankara City Hospital, Ankara-Turkey
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Du ZR, Gu Y, Xie XM, Zhang M, Jiang GY, Chen WF. GPER and IGF-1R mediate the anti-inflammatory effect of genistein against lipopolysaccharide (LPS)-induced nigrostriatal injury in rats. J Steroid Biochem Mol Biol 2021; 214:105989. [PMID: 34478828 DOI: 10.1016/j.jsbmb.2021.105989] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 08/05/2021] [Accepted: 08/25/2021] [Indexed: 12/25/2022]
Abstract
Neuroinflammation plays an important role in the pathogenesis of Parkinson's disease (PD). Genistein is an estrogen-like phytoestrogen that can exert biological effects via the crosstalk of estrogen receptor and insulin-like growth factor 1 receptor (IGF-1R). The present study aimed to evaluate the involvement of G protein-coupled estrogen receptor (GPER) and IGF-1R in the anti-inflammatory effects of genistein against lipopolysaccharide (LPS)-induced nigrostriatal injury in ovariectomized rats. Our results showed that genistein treatment could ameliorate the apomorphine-induced rotational behavior in LPS-induced inflammatory PD rat model. Genistein attenuated LPS-induced decrease of the contents of dopamine (DA) and its metabolites in striatum as well as the loss of tyrosine hydroxylase-immunoreactive (TH-IR) neurons in the substantia nigra (SN) of the lesioned side, which could be blocked by GPER antagonist G15 or IGF-1R antagonist JB1. Meanwhile, G15 or JB1 could attenuate the anti-inflammatory effects of genistein in LPS-induced microglial activation and production of tumor necrosis factor-α (TNF-α), interleukin 1β (IL-1β), inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2). Moreover, genistein could inhibit the LPS-induced phosphorylation of p38, JNK, ERK and IκB in the lesioned side of SN and these effects could also be blocked by G15 or JB1. Taken together, our data provide the first evidence that genistein can inhibit the increase of microglia and protect dopaminergic neurons at least in part via GPER and IGF-1R signaling pathways in ovariectomized PD rat model.
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Affiliation(s)
- Zhong-Rui Du
- Department of Physiology, Shandong Key Laboratory of Pathogenesis and Prevention of Neurological Disorders and State Key Disciplines: Physiology, School of Basic Medicine, Qingdao University, Qingdao, 266071, China; Laboratory of Sports of Human Science, Ludong University, Yantai, 264000, China
| | - Yu Gu
- Department of Physiology, Shandong Key Laboratory of Pathogenesis and Prevention of Neurological Disorders and State Key Disciplines: Physiology, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Xiao-Man Xie
- Department of Physiology, Shandong Key Laboratory of Pathogenesis and Prevention of Neurological Disorders and State Key Disciplines: Physiology, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Mei Zhang
- Department of Physiology, Shandong Key Laboratory of Pathogenesis and Prevention of Neurological Disorders and State Key Disciplines: Physiology, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Guo-Yi Jiang
- Department of Physiology, Shandong Key Laboratory of Pathogenesis and Prevention of Neurological Disorders and State Key Disciplines: Physiology, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Wen-Fang Chen
- Department of Physiology, Shandong Key Laboratory of Pathogenesis and Prevention of Neurological Disorders and State Key Disciplines: Physiology, School of Basic Medicine, Qingdao University, Qingdao, 266071, China.
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12
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Oppong-Gyebi A, Metzger D, Doan T, Han J, Vann PH, Yockey RA, Sumien N, Schreihofer DA. Long-term hypogonadism diminishes the neuroprotective effects of dietary genistein in young adult ovariectomized rats after transient focal ischemia. J Neurosci Res 2021; 100:598-619. [PMID: 34713481 DOI: 10.1002/jnr.24981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 08/19/2021] [Accepted: 09/25/2021] [Indexed: 02/06/2023]
Abstract
Increasing age disproportionately increases the risk of stroke among women compared to men of similar age, especially after menopause. One of the reasons for this observation is a sharp drop in circulating estrogens. However, the timing of initiation of estrogen replacement after menopause is associated with mixed beneficial and detrimental effects, hence contributing to widespread mistrust of estrogen use. Agents including soy isoflavones are being assessed as viable alternatives to estrogen therapy. In this study, we hypothesized that the neuroprotective effects of genistein, a soy isoflavone are less sensitive to the length of hypogonadism in young adult ovariectomized rats following cerebral ischemia. We expected that long-term hypogonadism will worsen motor and cognitive function, increase post-stroke inflammation with no effect on the neuroprotection of genistein. We compared the effect of treatment with dietary genistein (GEN) on short-term (2 weeks) and long-term hypogonadism (12 weeks) in young adult ovariectomized Sprague-Dawley rats on sensorimotor function, cognition and inflammation after focal ischemia. Dorsal Silastic implant of 17β-estradiol (E2) was used as a control for hormone therapy. Long-term hypogonadism stroked rats performed worse than the short-term hypogonadism stroked rats on the motor and cognitive function tests. GEN did not improve neurological assessment and motor learning after either short-term or long-term hypogonadism. GEN improved cognitive flexibility after short-term hypogonadism but not after the long-term. Both GEN and E2 reduced tissue loss after short-term hypogonadism and reduced GFAP expression at the contralateral side of ischemia after long-term hypogonadism. The length of hypogonadism may differentially influence the neuroprotective effects of both GEN and E2 on the motor and cognitive functions in young adult rats.
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Affiliation(s)
- Anthony Oppong-Gyebi
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA.,Center for Healthy Aging, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Daniel Metzger
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA.,Center for Healthy Aging, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Trinh Doan
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Jordan Han
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Phillip H Vann
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA.,Center for Healthy Aging, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - R Andrew Yockey
- Department of Biostatistics and Epidemiology, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Nathalie Sumien
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA.,Center for Healthy Aging, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Derek A Schreihofer
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA.,Center for Healthy Aging, University of North Texas Health Science Center, Fort Worth, Texas, USA
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13
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Adiponectin Treatment Attenuates Cerebral Ischemia-Reperfusion Injury through HIF-1 α-Mediated Antioxidation in Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:5531048. [PMID: 34336097 PMCID: PMC8298180 DOI: 10.1155/2021/5531048] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 05/01/2021] [Accepted: 05/10/2021] [Indexed: 01/01/2023]
Abstract
Adiponectin (ADPN) plays an important role in cerebral ischemia-reperfusion injury. Although previous studies have confirmed that ADPN pretreatment has a protective effect on ischemic stroke, the therapeutic effect of ADPN on ischemic stroke and the underlying mechanism are still unclear. In order to clarify these questions, focal transient cerebral ischemia was induced by middle cerebral artery occlusion (MCAO) in mice and ADPN was administered for three times at 6 h, 24 h, and 48 h after reperfusion. Meanwhile, a virus-delivered HIF-1α siRNA was used before ADPN administration. The infarct volume, neurological score, cellular apoptosis, and oxidative stress were assessed at 72 h after reperfusion. The long-term outcome of mice after stroke was recorded as well. The results indicated that ADPN treatment reduced the infarct volume (P = 0.032), neurological deficits (P = 0.047), cellular apoptosis (P = 0.041), and oxidative responses (P = 0.031) at 72 h after MCAO. Moreover, ADPN increased both the protein level and transcriptional activity of HIF-1α as evidenced by the transcription levels of VEGF (P = 0.046) and EPO (P = 0.043) at 72 h after MCAO. However, knockdown of HIF-1α partially reversed the antioxidant and treatment effect of ADPN after cerebral ischemia. In the observation of long-term outcome after ADPN treatment, it demonstrated that ADPN not only prevented the cerebral atrophy (P = 0.031) and the neurological function decline (P = 0.048), but also promoted angiogenesis (P = 0.028) after stroke. In conclusion, our findings suggest that ADPN is effective in treatment of ischemic stroke which could be attributed to the increased antioxidant capacity regulated by HIF-1α.
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14
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Neuroprotective Phytochemicals in Experimental Ischemic Stroke: Mechanisms and Potential Clinical Applications. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6687386. [PMID: 34007405 PMCID: PMC8102108 DOI: 10.1155/2021/6687386] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 03/10/2021] [Accepted: 03/29/2021] [Indexed: 02/06/2023]
Abstract
Ischemic stroke is a challenging disease with high mortality and disability rates, causing a great economic and social burden worldwide. During ischemic stroke, ionic imbalance and excitotoxicity, oxidative stress, and inflammation are developed in a relatively certain order, which then activate the cell death pathways directly or indirectly via the promotion of organelle dysfunction. Neuroprotection, a therapy that is aimed at inhibiting this damaging cascade, is therefore an important therapeutic strategy for ischemic stroke. Notably, phytochemicals showed great neuroprotective potential in preclinical research via various strategies including modulation of calcium levels and antiexcitotoxicity, antioxidation, anti-inflammation and BBB protection, mitochondrial protection and antiapoptosis, autophagy/mitophagy regulation, and regulation of neurotrophin release. In this review, we summarize the research works that report the neuroprotective activity of phytochemicals in the past 10 years and discuss the neuroprotective mechanisms and potential clinical applications of 148 phytochemicals that belong to the categories of flavonoids, stilbenoids, other phenols, terpenoids, and alkaloids. Among them, scutellarin, pinocembrin, puerarin, hydroxysafflor yellow A, salvianolic acids, rosmarinic acid, borneol, bilobalide, ginkgolides, ginsenoside Rd, and vinpocetine show great potential in clinical ischemic stroke treatment. This review will serve as a powerful reference for the screening of phytochemicals with potential clinical applications in ischemic stroke or the synthesis of new neuroprotective agents that take phytochemicals as leading compounds.
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15
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Naeem A, Ming Y, Pengyi H, Jie KY, Yali L, Haiyan Z, Shuai X, Wenjing L, Ling W, Xia ZM, Shan LS, Qin Z. The fate of flavonoids after oral administration: a comprehensive overview of its bioavailability. Crit Rev Food Sci Nutr 2021; 62:6169-6186. [PMID: 33847202 DOI: 10.1080/10408398.2021.1898333] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Despite advancements in synthetic chemistry, nature remains the primary source of drug discovery, and this never-ending task of finding novel and active drug molecules will continue. Flavonoids have been shown to possess highly significant therapeutic activities such as anti-inflammatory, anti-oxidant, anti-viral, anti-diabetic, anti-cancer, anti-aging, neuroprotective, and cardioprotective, etc., However, it has been found that orally administered flavonoids have a critical absorption disorder and, therefore, have low bioavailability and show fluctuating pharmacokinetic and pharmacodynamic responses. A detailed investigation is required to assess and analyze the variation in the bioavailability of flavonoids due to interactions with the intestinal barrier. This review will emphasize on the bioavailability and the pharmacological applications of flavonoids, key factors affecting their bioavailability, and strategies for enhancing bioavailability, which may lead to deeper understanding of the extent of flavonoids as a treatment and/or prevention for different diseases in clinics.
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Affiliation(s)
- Abid Naeem
- Jiangxi University of Traditional Chinese Medicine, Nanchang, PR China.,Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, State Key Lab of Innovation Drug and Efficient Energy-Saving Pharmaceutical Equipment, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, China
| | - Yang Ming
- Jiangxi University of Traditional Chinese Medicine, Nanchang, PR China.,Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, State Key Lab of Innovation Drug and Efficient Energy-Saving Pharmaceutical Equipment, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, China
| | - Hu Pengyi
- Jiangxi University of Traditional Chinese Medicine, Nanchang, PR China.,Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, State Key Lab of Innovation Drug and Efficient Energy-Saving Pharmaceutical Equipment, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, China
| | - Kang Yong Jie
- Jiangxi University of Traditional Chinese Medicine, Nanchang, PR China
| | - Liu Yali
- Jiangxi University of Traditional Chinese Medicine, Nanchang, PR China.,Science and Technology College, Jiangxi University of Traditional Chinese Medicine, Nanchang, PR China
| | - Zhang Haiyan
- Jiangxi University of Traditional Chinese Medicine, Nanchang, PR China.,Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, State Key Lab of Innovation Drug and Efficient Energy-Saving Pharmaceutical Equipment, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, China
| | - Xiao Shuai
- Jiangxi University of Traditional Chinese Medicine, Nanchang, PR China.,Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, State Key Lab of Innovation Drug and Efficient Energy-Saving Pharmaceutical Equipment, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, China
| | - Li Wenjing
- Jiangxi University of Traditional Chinese Medicine, Nanchang, PR China.,Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, State Key Lab of Innovation Drug and Efficient Energy-Saving Pharmaceutical Equipment, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, China
| | - Wu Ling
- Jiangxi University of Traditional Chinese Medicine, Nanchang, PR China.,Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, State Key Lab of Innovation Drug and Efficient Energy-Saving Pharmaceutical Equipment, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, China
| | - Zhang Ming Xia
- Jiangxi University of Traditional Chinese Medicine, Nanchang, PR China.,Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, State Key Lab of Innovation Drug and Efficient Energy-Saving Pharmaceutical Equipment, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, China
| | - Liu Shan Shan
- Jiangxi University of Traditional Chinese Medicine, Nanchang, PR China.,Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, State Key Lab of Innovation Drug and Efficient Energy-Saving Pharmaceutical Equipment, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, China
| | - Zheng Qin
- Jiangxi University of Traditional Chinese Medicine, Nanchang, PR China.,Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, State Key Lab of Innovation Drug and Efficient Energy-Saving Pharmaceutical Equipment, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, China
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16
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Parrella E, Gussago C, Porrini V, Benarese M, Pizzi M. From Preclinical Stroke Models to Humans: Polyphenols in the Prevention and Treatment of Stroke. Nutrients 2020; 13:nu13010085. [PMID: 33383852 PMCID: PMC7823436 DOI: 10.3390/nu13010085] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 12/24/2020] [Indexed: 02/07/2023] Open
Abstract
Polyphenols are an important family of molecules of vegetal origin present in many medicinal and edible plants, which represent important alimentary sources in the human diet. Polyphenols are known for their beneficial health effects and have been investigated for their potential protective role against various pathologies, including cancer, brain dysfunctions, cardiovascular diseases and stroke. The prevention of stroke promoted by polyphenols relies mainly on their effect on cardio- and cerebrovascular systems. However, a growing body of evidence from preclinical models of stroke points out a neuroprotective role of these molecules. Notably, in many preclinical studies, the polyphenolic compounds were effective also when administered after the stroke onset, suggesting their possible use in promoting recovery of patients suffering from stroke. Here, we review the effects of the major polyphenols in cellular and in vivo models of both ischemic and hemorrhagic stroke in immature and adult brains. The results from human studies are also reported.
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17
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Petrine JCP, Del Bianco-Borges B. The influence of phytoestrogens on different physiological and pathological processes: An overview. Phytother Res 2020; 35:180-197. [PMID: 32780464 DOI: 10.1002/ptr.6816] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 06/01/2020] [Accepted: 07/02/2020] [Indexed: 02/06/2023]
Abstract
Functional foods have nutritional properties and organic functions, which are beneficial to health. Certain types of functional food components are so-called phytoestrogens, non-steroidal compounds derived from the metabolism of precursors contained in plants, which originate secondary metabotypes known to induce biological responses and by mimicry or modulating the action of endogenous estrogen. These molecules are involved in several physiological and pathological processes related to reproduction, bone remodeling, skin, cardiovascular, nervous, immune systems, and metabolism. This review aimed to present an overview of phytoestrogens regarding their chemical structure, actions, and effects in the organism given several pathologies. Several studies have demonstrated beneficial phytoestrogen actions, such as lipid profile improvement, cognitive function, menopause, oxidative stress, among others. Phytoestrogens effects are not completely elucidated, being necessary future research to understand the exact action mechanisms, whether they are via estrogen receptor or whether other hidden mechanisms produce these effects. Thus, this review makes a general approach to the phytoestrogen actions, beneficial effects, risk and limitations. However, the complexities of biological effects after ingestion of phytoestrogens and the differences in their metabolism and bioavailability indicate that interpretation of either risk or benefits needs to be made with caution.
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Affiliation(s)
- Jéssica C P Petrine
- Departamento de Ciências da Saúde, Universidade Federal de Lavras, Lavras, Brasil
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18
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Wang S, Wang J, Wei H, Gu T, Wang J, Wu Z, Yang Q. Genistein Attenuates Acute Cerebral Ischemic Damage by Inhibiting the NLRP3 Inflammasome in Reproductively Senescent Mice. Front Aging Neurosci 2020; 12:153. [PMID: 32625078 PMCID: PMC7311792 DOI: 10.3389/fnagi.2020.00153] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 05/06/2020] [Indexed: 12/25/2022] Open
Abstract
Postmenopausal women have a higher incidence of stroke compared to the age-matched males, and the estrogen was thought to be the main cause of such difference. However, estrogen replacement therapy for the prevention of postmenopausal stroke shows controversial results and is widely disputed because of its serious side effects after chronic administration. Genistein (Gen), a natural phytestrogen with fewer side effects, has a protective effect against cerebral ischemia damage. However, whether Gen could effectively prevent postmenopausal stroke has not been elucidated. In the current study, reproductively senescent mice were treated with Gen (10 mg/kg) for 2 weeks before having transient cerebral ischemia insults. Neurological scores, infarct volumes, and cell apoptosis were evaluated 24 h after reperfusion. The levels of inflammatory factors and nod-like receptor protein 3 (NLRP3) inflammasome-related proteins were also examined. The results showed that Gen treatment reduced infarct volumes, improved neurological scores, attenuated apoptosis, and decreased inflammatory factor release. The expression of NLRP3 inflammasome-related proteins in microglia was downregulated by Gen. However, the overexpression of NLRP3 in microglia abrogated the Gen-induced inhibition of inflammatory factor release and reversed the neuroprotective effect of Gen. Taken together, the results suggest that Gen treatment could attenuate the acute injury induced by cerebral ischemia in reproductively senescent mice via the inhibition of the NLRP3 inflammasome in microglia, indicating that Gen could be a candidate drug for the treatment of stroke in postmenopausal women.
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Affiliation(s)
- Shiquan Wang
- Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Jin Wang
- Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Haidong Wei
- Department of Anesthesiology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Tingting Gu
- Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Jiajia Wang
- Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Zhixin Wu
- Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Qianzi Yang
- Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
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19
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Guo M, Lu H, Qin J, Qu S, Wang W, Guo Y, Liao W, Song M, Chen J, Wang Y. Biochanin A Provides Neuroprotection Against Cerebral Ischemia/Reperfusion Injury by Nrf2-Mediated Inhibition of Oxidative Stress and Inflammation Signaling Pathway in Rats. Med Sci Monit 2019; 25:8975-8983. [PMID: 31767824 PMCID: PMC6896748 DOI: 10.12659/msm.918665] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Background Oxidative stress and neuroinflammation are 2 pivotal mechanisms in the progression of cerebral ischemia/reperfusion injury. Biochanin A, a natural phytoestrogen, has been reported to protect against ischemic brain injury in animal experiments, but the possible pharmacological mechanisms of its neuroprotection remain elusive. In this research, we sought to investigate the neuroprotective effects of biochanin A in experimental stroke rats and the probable mechanisms underlying oxidative stress and inflammation signaling pathways. Material/Methods An ischemic stroke model was induced by inserting thread into the middle cerebral artery. Rats were pre-administered intraperitoneally with a vehicle solution or biochanin A (10, 20, or 40 mg·kg·d−1) for 14 days prior to ischemic stroke. Neurological score, infarct volume, and cerebral edema were assessed after 2 h of ischemia and 24 h of reperfusion. The activities of SOD and GSH-Px and MDA content were measured. The expressions of Nrf2, HO-1, and NF-κB and the activity of phosphor-IκBα were detected by Western blotting. Results Biochanin A pretreatment significantly improved neurological deficit and decreased infarct size and brain edema. Biochanin A also enhanced SOD and GSH-Px activities and suppressed the production of MDA. Additionally, biochanin A promoted Nrf2 nuclear translocation, promoted the expression of HO-1, and inhibited NF-κB activation in ischemic brain injury. Conclusions The results indicated that biochanin A protected the brain against ischemic injury in rats by anti-oxidative and anti-inflammatory actions. The activation of the Nrf2 pathway and the inhibition of the NF-κB pathway may contribute to the neuroprotective effects of biochanin A.
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Affiliation(s)
- Minmin Guo
- Key Laboratory of Tumor Immunology and Microenvironmental Regulation, Guilin Medical University, Guilin, Guangxi, China (mainland)
| | - Huiling Lu
- Key Laboratory of Tumor Immunology and Microenvironmental Regulation, Guilin Medical University, Guilin, Guangxi, China (mainland).,Department of Pathology and Physiopathology, Guilin Medical University, Guilin, Guangxi, China (mainland)
| | - Jian Qin
- Department of Radiation Oncology of Clinical Cancer Center, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, China (mainland)
| | - Shengbiao Qu
- Key Laboratory of Tumor Immunology and Microenvironmental Regulation, Guilin Medical University, Guilin, Guangxi, China (mainland)
| | - Wenbo Wang
- Department of Neurosurgery, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China (mainland)
| | - Yanhong Guo
- Department of Physiology, Guilin Medical University, Guilin, Guangxi, China (mainland)
| | - Weiyong Liao
- Department of Physiology, Guilin Medical University, Guilin, Guangxi, China (mainland)
| | - Mengwei Song
- Functional Laboratory, Guilin Medical University, Guilin, Guangxi, China (mainland)
| | - Jian Chen
- Key Laboratory of Tumor Immunology and Microenvironmental Regulation, Guilin Medical University, Guilin, Guangxi, China (mainland)
| | - Yong Wang
- Key Laboratory of Tumor Immunology and Microenvironmental Regulation, Guilin Medical University, Guilin, Guangxi, China (mainland).,Department of Physiology, Guilin Medical University, Guilin, Guangxi, China (mainland)
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20
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Bai C, Zhao C. Sodium Hydrosulfide Post-conditioning Protects Hippocampal CA1 Neurons from Neuronal Cell Injury in the Rat Model of Transient Global Cerebral Ischemia Through Activation of Extracellular-regulated Kinases Signaling. Curr Neurovasc Res 2019; 16:156-165. [PMID: 31237214 DOI: 10.2174/1567202616666190618114250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 03/27/2019] [Accepted: 03/28/2019] [Indexed: 11/22/2022]
Abstract
INTRODUCTION The effect of hydrogen sulfide (H2S) on global cerebral ischemia remains partially understood. This study aimed to investigate the neuroprotective effect of sodium hydrosulfide (NaHS, a donor of H2S) post-conditioning and its underlying mechanism in a transient global cerebral ischemia (tGCI) model. MATERIALS & METHODS The tGCI rat model was established by the four-vessel occlusion method. Wistar rats were randomly assigned into 6 groups: sham, tGCI, tGCI +NaHS, tGCI+vehicle, tGCI+U0126 and tGCI+U0126+NaHS groups. Neurons survival was assessed by Nissl staining and NeuN immunostaining. Levels of extracellular extracellular-regulated kinases (ERK)1/2 and p-ERK1/2 were determined by western blot and immunohistochemistry (IHC). Intraperitoneal injection of NaHS (24 µmol/kg) at 24 h post-tGCI attenuated tGCI-induced decrease of the survival and NeuN-positive neurons in the hippocampal CA1 subregion. RESULTS Compared to the sham group, tGCI significantly up-regulated p-ERK1/2 protein at 26 and 48 h post-tGCI. NaHS post-conditioning further enhanced the phosphorylation of ERK1/2 at 26, 48 and 168 h post-tGCI. Nevertheless, U0126 (an inhibitor of MEK1/2) pre-treatment reduced the p-ERK1/2 level in both the tGCI+ U0126 group and the tGCI+ U0126+ NaHS group. IHC staining revealed that p-ERK1/2-positive cell could be observed in several hippocampal subregions of the rats receiving NaHS post-conditioning. Immunofluorescence staining showed that some neurons were double-stained with p-ERK1/2 and NeuN. Furthermore, U0126 pre-treatment significantly attenuated the protective effect of NaHS post-conditioning on the neurons survival and NeuNpositive neurons in CA1 subregion. CONCLUSION These results suggested that NaHS post-conditioning can protect hippocampal CA1 neurons from tGCI-induced injury, at least partially, through activation of ERK1/2 signaling.
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Affiliation(s)
- ChengPing Bai
- Department of Neurology, Affiliated Hospital of Qinghai University, 810001, Xining, Qinghai, China
| | - ChenLiang Zhao
- The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu 322000, Zhejiang, China
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21
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Mohamed SK, Ahmed AAE, Elmorsy EM, Nofal S. ERK activation by zeranol has neuroprotective effect in cerebral ischemia reperfusion. Life Sci 2019; 227:137-144. [PMID: 31005550 DOI: 10.1016/j.lfs.2019.04.035] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 04/02/2019] [Accepted: 04/15/2019] [Indexed: 11/29/2022]
Abstract
AIMS Incidence of stroke increases in postmenopausal women with dangerous consequences. In this study we used zeranol to protect ovariectomized (OVX) rats against cerebral I/R damage and our target is to identify the mechanism of its protection, in addition to investigating whether this mechanism inhibits inflammation (by preventing glial cell activation) and apoptosis. MAIN METHODS First 18 ovariectomized rats were allocated into 3 groups: I/R group, zeranol+ I/R group and U0126, MEK1/2 inhibitor + zeranol+ I/R group. After 24 h reperfusion, protein expression of total extracellular signal-regulated protein kinase (t-ERK1/2), phosphorylated extracellular signal-regulated protein kinase (p-ERK1/2), Bcl-2, and Bax were quantified. Second 36 female rats were allocated into 3 groups: sham group, I/R group (after ovariectomy by 7 weeks, rats exposed to cerebral I/R) and zeranol group (after ovariectomy by 2 weeks, rats received zeranol for 5 weeks). After 24 h of reperfusion, the following parameters were measured; total nitrate/nitrite, interleukin-10, myeloperoxidase, caspase-3, and finally immunohistochemistry analysis of glial fibrillary acidic protein, cyclooxygenase-2 in cortex and hippocampus (CA1) regions were performed. KEY FINDINGS U-0126 administration reversed the neuroprotective effect induced by zeranol through decreasing ratio of p-ERK1/2:ERK1/2 and Bcl-2/Bax in brain tissue. Activation of ERK signaling pathway by zeranol caused reduction in brain apoptosis and inflammation. SIGNIFICANCE Zeranol showed protective effect in OVX rats that were exposed to cerebral I/R by activation of ERK signaling pathway which was blocked by U0126. This protective effect in turns led to decrease inflammation and apoptosis.
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Affiliation(s)
- Shimaa K Mohamed
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt.
| | - Amany A E Ahmed
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Engy M Elmorsy
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Shahira Nofal
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt
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22
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Mohamed SK, Ahmed AAE, El Morsy EM, Nofal S. The protective effect of zeranol in cerebral ischemia reperfusion via p-CREB overexpression. Life Sci 2019; 217:212-221. [PMID: 30550883 DOI: 10.1016/j.lfs.2018.12.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 12/09/2018] [Accepted: 12/10/2018] [Indexed: 12/18/2022]
Abstract
AIMS Cerebral ischemia reperfusion (I/R) is a neurovascular disease leading to cerebral damage. It was found that postmenopausal women are liable to more dangerous effects than men at same age in stroke. The objective of this study is to investigate the neuroprotective effect of zeranol against cerebral ischemia reperfusion in ovariectomized rats. MAIN METHODS 36 female wistar rats divided in to 3 groups: sham group, I/R group (where I/R was induced 7 weeks after ovariectomy), zeranol group (0.5 mg/kg every 3 days for 5 weeks before I/R). Cerebral ischemia reperfusion (I/R) was performed by bilateral common carotid artery occlusion then de-ligated to restore blood flow. After 24 h of reperfusion, rats performed cylinder test to evaluate behavioral dysfunction followed by decapitation. Brain tissues were collected for biochemical measures such as oxidative stress marker malondialdehyde, antioxidant markers reduced glutathione, inflammatory markers (interleukin-1 beta, tumor necrosis factor alpha, and inducible nitric oxide synthase), matrix metalloproteinase-9, adenosine triphosphate, brain derived neurotrophic factor, glucose transporter-3, phosphorylated c-AMP response element binding protein and finally nissl staining for histopathological examination. KEY FINDINGS The zeranol administered group showed a reversal of neuronal damage caused by ischemia evidenced by the decrease in MDA, IL-1β, TNF-α, and MMP-9 levels, increase GSH, and ATP levels, decrease expression of iNOS in both regions cortex and hippocampus, increase protein level of p-CREB, GLUT-3 and BDNF, increase number of intact neuron cells in both regions and attenuated histological changes in both cortex and hippocampus regions. SIGNIFICANCE Zeranol has neuroprotective potential against cerebral ischemia reperfusion in ovariectomized rats.
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Affiliation(s)
- Shimaa K Mohamed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo 11795, Egypt
| | - Amany A E Ahmed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo 11795, Egypt
| | - Engy M El Morsy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo 11795, Egypt
| | - Shahira Nofal
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo 11795, Egypt.
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Nutritional Regulators of Bcl-xL in the Brain. Molecules 2018; 23:molecules23113019. [PMID: 30463183 PMCID: PMC6278276 DOI: 10.3390/molecules23113019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 11/15/2018] [Accepted: 11/18/2018] [Indexed: 01/12/2023] Open
Abstract
B-cell lymphoma-extra large (Bcl-xL) is an anti-apoptotic Bcl-2 protein found in the mitochondrial membrane. Bcl-xL is reported to support normal brain development and protects neurons against toxic stimulation during pathological process via its roles in regulation of mitochondrial functions. Despite promising evidence showing neuroprotective properties of Bcl-xL, commonly applied molecular approaches such as genetic manipulation may not be readily applicable for human subjects. Therefore, findings at the bench may be slow to be translated into treatments for disease. Currently, there is no FDA approved application that specifically targets Bcl-xL and treats brain-associated pathology in humans. In this review, we will discuss naturally occurring nutrients that may exhibit regulatory effects on Bcl-xL expression or activity, thus potentially providing affordable, readily-applicable, easy, and safe strategies to protect the brain.
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Inhibiting of GRASP65 Phosphorylation by DL-3-N-Butylphthalide Protects against Cerebral Ischemia-Reperfusion Injury via ERK Signaling. Behav Neurol 2018; 2018:5701719. [PMID: 30154935 PMCID: PMC6093058 DOI: 10.1155/2018/5701719] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 06/16/2018] [Accepted: 07/05/2018] [Indexed: 12/15/2022] Open
Abstract
Background and Purpose The aim of this study was to explore the role of DL-3-n-butylphthalide (NBP) in cerebral ischemia-reperfusion injury (CIRI) mice model. The involvement of extracellular signal-regulated kinase (ERK) signaling pathway was also investigated. Methods All mice were divided into five groups: sham-operated group, CIRI group, NBP pretreatment group, NBP treatment group, and NBP pretreatment + treatment group. The CIRI mice model was established by the use of the Pulsinelli four-vessel occlusion method. Pretreatment mice received NBP (90 mg/kg/d) three times a day within four days before reperfusion by gavage. Treatment mice received NBP (90 mg/kg/d) three times a day within five days after reperfusion by gavage. We detected the infarction area, the neurological severity, and the superoxide dismutase and malondialdehyde levels. Furthermore, we observed the expressions of GRASP65, phosphorylation of GRASP65 (pGRASP65), ERK, and phosphorylation of ERK (pERK) by the use of Western blotting. Results The result showed that the ERK pathway was activated in response to CIRI. NBP decreases the expressions of pERK and pGRASP65 following CIRI. Additionally, NBP could decrease MDA and increase SOD level in brain tissues. Decreased infarct volume was also observed in the NBP group. Thereby, NBP inhibited the activation of the ERK pathway induced by CIRI and reduced the GRASP65 phosphorylation. Conclusions The current finding suggested that NBP protected the cerebrum from CIRI mediated by inhibiting the ERK signaling pathway and subsequently reducing GRASP65 phosphorylation.
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Miao ZY, Xia X, Che L, Song YT. Genistein attenuates brain damage induced by transient cerebral ischemia through up-regulation of Nrf2 expression in ovariectomized rats. Neurol Res 2018; 40:689-695. [PMID: 29688134 DOI: 10.1080/01616412.2018.1462879] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Postmenopausal women possess higher incidence of stroke and worse prognosis. Although estrogen replacement therapy has obvious neuroprotective effects against stroke, it is always accompanied with several adverse effects and undesired outcomes. Genistein, a natural phytoestrogen, has been indicated to be a potential neuroprotective alternative for postmenopausal women against stroke. However, the role and mechanism of genistein's neuroprotective effects against stroke in ovariectomized rats have rarely been explored. METHODS In this study, ovariectomized rats were treated with genistein (10 mg/kg) or vehicle daily for two weeks before they received middle cerebral artery occlusion (MCAO) and reperfusion. After 72 hours of reperfusion, the neurological function was evaluated by Garcia test, infarct volume was detected by 2,3,5-triphenyltetrazolium chloride staining, and neuronal damage was detected by Nissl staining. In addition, ROS production and the expression of Nrf2, NQO1 and cleaved-Caspase3 in the ischemic penumbra were detected. RESULTS The results showed that genistein treatment significantly improved the neurological outcome, reduced infarct volume, increased Nrf2 and NQO1 expression, and reduced ROS production and cleaved-Caspase3 expression in ovariectomized rats. DISCUSSION Our findings indicated that treatment with genistein could alleviated oxidative stress injury induced by cerebral ischemia in ovariectomized rats via promoting Nrf2 and NQO1 expression, which provide a new molecular mechanism for the neuroprotective effects of genistein against stroke in postmenopausal women.
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Affiliation(s)
- Zhong-Yan Miao
- a Department of Medical Examination , The Second Affiliated Hospital of Mudanjiang Medical University , Heilongjiang , China
| | - Xu Xia
- b Department of Psychology , Hongqi Hospital Affiliated to Mudanjiang Medical University , Heilongjiang , China
| | - Lu Che
- c Department of Medical Record , Hongqi Hospital Affiliated to Mudanjiang Medical University , Heilongjiang , China
| | - Yan-Tao Song
- d Department of Teaching and Research , The Second Affiliated Hospital of Mudanjiang Medical University , Heilongjiang , China
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Khodamoradi M, Ghazvini H, Esmaeili-Mahani S, Shahveisi K, Farnia V, Zhaleh H, Abdoli N, Akbarnejad Z, Saadati H, Sheibani V. Genistein attenuates seizure-induced hippocampal brain-derived neurotrophic factor overexpression in ovariectomized rats. J Chem Neuroanat 2018. [DOI: 10.1016/j.jchemneu.2018.03.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Schreihofer DA, Oppong-Gyebi A. Genistein: mechanisms of action for a pleiotropic neuroprotective agent in stroke. Nutr Neurosci 2017; 22:375-391. [PMID: 29063799 DOI: 10.1080/1028415x.2017.1391933] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Genistein is a plant estrogen promoted as an alternative to post-menopausal hormone therapy because of a good safety profile and its promotion as a natural product. Several preclinical studies of cerebral ischemia and other models of brain injury support a beneficial role for genistein in protecting the brain from injury whether administered chronically or acutely. Like estrogen, genistein is a pleiotropic molecule that engages several different mechanisms to enhance brain health, including reduction of oxidative stress, promotion of growth factor signaling, and immune suppression. These actions occur in endothelial, glial, and neuronal cells to provide a coordinated beneficial action to ischemic challenge. Though many of these protective actions are associated with estrogen-like actions of genistein, additional activities on other receptors and intracellular targets suggest that genistein is more than a mere estrogen-mimic. Importantly, genistein lacks some of the detrimental effects associated with post-menopausal estrogen treatment and may provide an alternative to hormone therapy in those patients at risk for ischemic events.
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Affiliation(s)
- Derek A Schreihofer
- a Center for Neuroscience Discovery and Institute for Healthy Aging , University of North Texas Health Science Center at Fort Worth , 3500 Camp Bowie Boulevard, Fort Worth , TX 76107 , USA
| | - Anthony Oppong-Gyebi
- a Center for Neuroscience Discovery and Institute for Healthy Aging , University of North Texas Health Science Center at Fort Worth , 3500 Camp Bowie Boulevard, Fort Worth , TX 76107 , USA
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Khanna S, Stewart R, Gnyawali S, Harris H, Balch M, Spieldenner J, Sen CK, Rink C. Phytoestrogen isoflavone intervention to engage the neuroprotective effect of glutamate oxaloacetate transaminase against stroke. FASEB J 2017; 31:4533-4544. [PMID: 28655710 DOI: 10.1096/fj.201700353] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 06/12/2017] [Indexed: 12/15/2022]
Abstract
In the pathophysiologic setting of cerebral ischemia, excitotoxic levels of glutamate contribute to neuronal cell death. Our previous work demonstrated the ability of glutamate oxaloacetate transaminase (GOT) to metabolize neurotoxic glutamate in the stroke-affected brain. Here, we seek to identify small-molecule inducers of GOT expression to mitigate ischemic stroke injury. From a panel of phytoestrogen isoflavones, biochanin A (BCA) was identified as the most potent inducer of GOT gene expression in neural cells. BCA significantly increased GOT mRNA and protein expression at 24 h and protected against glutamate-induced cell death. Of note, this protection was lost when GOT was knocked down. To validate outcomes in vivo, C57BL/6 mice were intraperitoneally injected with BCA (5 and 10 mg/kg) for 4 wk and subjected to ischemic stroke. BCA levels were significantly increased in plasma and brain of mice. Immunohistochemistry demonstrated increased GOT protein expression in the brain. BCA attenuated stroke lesion volume as measured by 9.4T MRI and improved sensorimotor function-this protection was lost with GOT knockdown. BCA increased luciferase activity in cells that were transfected with the pERRE3tk-LUC plasmid, which demonstrated transactivation of GOT. This increase was lost when estrogen-related receptor response element sites were mutated. Taken together, BCA represents a natural phytoestrogen that mitigates stroke-induced injury by inducing GOT expression.-Khanna, S., Stewart, R., Gnyawali, S., Harris, H., Balch, M., Spieldenner, J., Sen, C. K., Rink, C. Phytoestrogen isoflavone intervention to engage the neuroprotective effect of glutamate oxaloacetate transaminase against stroke.
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Affiliation(s)
- Savita Khanna
- Department of Surgery, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Richard Stewart
- Department of Surgery, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Surya Gnyawali
- Department of Surgery, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Hallie Harris
- Department of Surgery, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Maria Balch
- Department of Surgery, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - James Spieldenner
- Department of Surgery, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Chandan K Sen
- Department of Surgery, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Cameron Rink
- Department of Surgery, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
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Wahby MM, Mohammed DS, Newairy AA, Abdou HM, Zaky A. Aluminum-induced molecular neurodegeneration: The protective role of genistein and chickpea extract. Food Chem Toxicol 2017; 107:57-67. [PMID: 28552514 DOI: 10.1016/j.fct.2017.05.044] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 05/18/2017] [Accepted: 05/21/2017] [Indexed: 12/20/2022]
Abstract
Neurotoxicity of Al is well established and linked to oxidative damage and neurodegeneration. This study investigated the protective role of genistein (Gen) and chickpea extract (CPE) against AlCl3-induced neurodegeneration. HPLC analysis revealed that biochanin A-7-O-β-D-glucoside and biochanin A are the major components of the CPE. Gene expression of TNF-α, APP, BACE1, PSEN-2 and ER-β were assessed in brain extract using RT-PCR. Also, NF-кB subunit P65 and COX-2 expression were evaluated by western blotting. The cholinergic function, histological examination and oxidative status were also estimated. The AlCl3 significantly up regulated the expression of the NF-кB subunit P65, COX-2, TNF- α, BACE1and APP while it significantly down regulated PSEN-2 and ER-β expression. The activity of acetyl cholinesterase (AChE) and the oxidative stress parameters as well as the histological examination confirmed the deleterious effect of AlCl3. The administration of either CPE or Gen attenuated the expression of inflammatory cytokines, inhibited the amyloidogenesis and restored both the AChE activity and ER-β expression. Gen and CPE also inhibited the oxidative stress and ameliorated the histological alterations. Accordingly, the present study provides an insight on the molecular role of Gen and CPE as protective agents against neuronal injury.
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Affiliation(s)
- M M Wahby
- Department of Biochemistry, Faculty of Science, Alexandria University, Egypt.
| | - D S Mohammed
- Department of Biochemistry, Faculty of Science, Alexandria University, Egypt
| | - A A Newairy
- Department of Biochemistry, Faculty of Science, Alexandria University, Egypt
| | - H M Abdou
- Department of Zoology, Faulty of Science, Alexandria University, Egypt
| | - A Zaky
- Department of Biochemistry, Faculty of Science, Alexandria University, Egypt
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Lin B, Yu H, Lin Y, Cai C, Lu H, Zhu X. Suppression of GRASP65 phosphorylation by tetrahydrocurcumin protects against cerebral ischemia/reperfusion injury via ERK signaling. Mol Med Rep 2016; 14:4775-4780. [PMID: 27748926 DOI: 10.3892/mmr.2016.5816] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 09/09/2016] [Indexed: 11/06/2022] Open
Abstract
The aim of the present study was to assess the neuroprotective effects of tetrahydrocurcumin (THC) in a mouse model of cerebral ischemia/reperfusion (I/R) injury, and to investigate the involvement of Golgi reassembly and stacking protein 65 (GRASP65) and the extracellular signal‑regulated kinase (ERK) signaling pathway. Cerebral I/R injury was induced using the Pulsinelli four‑vessel occlusion method. After 5 min of reperfusion, mice received THC (5, 10 or 25 mg/kg) or saline by intraperitoneal injection. After 24 h of reperfusion, mice underwent neurological evaluation. Infarct volumes were determined by triphenyltetrazolium chloride staining, and levels of superoxide dismutase and malondialdehyde were measured in brain tissue homogenates. Expression of GRASP65, phosphorylated‑GRASP65, ERK and phosphorylated‑ERK was determined by western blotting. THC induced a dose‑dependent decrease in the phosphorylation of ERK and GRASP65. Thus, THC attenuated I/R injury‑induced activation of the ERK signaling pathway and reduced the phosphorylation of GRASP65. THC exhibited a dose‑dependent protective effect against cerebral I/R injury, mediated by suppression of the ERK signaling pathway and a subsequent reduction in GRASP65 phosphorylation. The current study provided new information in the research of the cerebral ischemia‑reperfusion injury mechanism.
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Affiliation(s)
- Bin Lin
- Department of Pharmacy, Changxing People's Hospital of Zhejiang, Huzhou, Zhejiang 313100, P.R. China
| | - Heng Yu
- Department of Medicine, First Clinical Medicine School, Wenzhou Medical University, Wenzhou, Zhejiang 325035, P.R. China
| | - Yuting Lin
- Department of Medicine, Renji School, Wenzhou Medical University, Wenzhou, Zhejiang 325035, P.R. China
| | - Chao Cai
- Department of Medicine, First Clinical Medicine School, Wenzhou Medical University, Wenzhou, Zhejiang 325035, P.R. China
| | - Huoquan Lu
- Department of Pharmacy, Changxing People's Hospital of Zhejiang, Huzhou, Zhejiang 313100, P.R. China
| | - Xinbo Zhu
- Department of Pharmacy, Pharmacy School, Wenzhou Medical University, Wenzhou, Zhejiang 325035, P.R. China
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31
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Wang H, Mu DZ. [17β‑estradiol suppresses hyperoxia‑induced apoptosis of oligodendrocyte precursor cells through paired‑immunoglobulin‑like receptor B]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2016; 18:650-655. [PMID: 27412551 PMCID: PMC7388988 DOI: 10.7499/j.issn.1008-8830.2016.07.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Accepted: 05/23/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To study the effect of hyperoxia and paired immunoglobin-like receptor B (PirB) on rat oligodendrocyte precursor cells (OPCs) in vivo and the neuroprotective effects of 17β-estradiol (E2) on these cells. METHODS Rat OPCs were treated with different concentrations of E2 and the cells were harvested for RT‑qPCR analysis at different time points. PriB was silenced with small interfering siRNA. The effects of E2 treatment and silencing of PriB on OPCs viability and apoptosis under hyperoxic stimulation were detected using 3‑(4,5‑dimethylthi‑azol‑2‑yl)‑2,5‑diphenyltetrazolium bromide (MTT) assay and flow cytometry analysis. RESULTS Hyperoxia induced apoptosis in OPCs and decreased their viability. E2 treatment markedly down-regulated the expression of PirB. E2 treatment or PirB silencing markedly decreased hyperoxia-induced apoptosis and increased cell viability in OPCs. CONCLUSIONS E2 can protect OPCs from hyperoxia-induced apoptosis.
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Affiliation(s)
- Hua Wang
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610041, China.
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Morán J, Perez-Basterrechea M, Garrido P, Díaz E, Alonso A, Otero J, Colado E, González C. Effects of Estrogen and Phytoestrogen Treatment on an In Vitro Model of Recurrent Stroke on HT22 Neuronal Cell Line. Cell Mol Neurobiol 2016; 37:405-416. [PMID: 27059741 DOI: 10.1007/s10571-016-0372-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 04/01/2016] [Indexed: 01/01/2023]
Abstract
An increase of stroke incidence occurs in women with the decline of estrogen levels following menopause. This ischemic damage may recur, especially soon after the first insult has occurred. We evaluated the effects of estrogen and phytoestrogen treatment on an in vitro recurrent stroke model using the HT22 neuronal cell line. HT22 cells were treated with 17β-estradiol or genistein 1 h after the beginning of the first of two oxygen and glucose deprivation/reoxygenation (OGD/R) cycles. During the second OGD, there was a deterioration of some components of the electron transport chain, such as cytochrome c oxidase subunit 1 with a subsequent increase of reactive oxygen species (ROS) production. Accordingly, there was also an increase of apoptotic phenomena demonstrated by poly(ADP-ribose) polymerase 1 cleavage, Caspase-3 activity, and Annexin V levels. The recurrent ischemic injury also raised the hypoxia-inducible factor 1α and glucose transporter 1 levels, as well as the ratio between the lipidated and cytosolic forms of microtubule-associated protein 1A/1B-light chain 3 (LC3-II/LC3-I). We found a positive effect of estradiol and genistein treatment by partially preserving the impaired cell viability after the recurrent ischemic injury; however, this positive effect does not seem to be mediated neither by blocking apoptosis processes nor by decreasing ROS production. This work contribute to the better understanding of the molecular mechanisms triggered by recurrent ischemic damage in neuronal cells and, therefore, could help with the development of an effective treatment to minimize the consequences of this pathology.
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Affiliation(s)
- Javier Morán
- Department of Functional Biology. Physiology Area, University of Oviedo, Av. Julián Clavería, No. 6, 33006, Oviedo, Spain.,Department of Clinical Neuroscience and Rehabilitation, Sahlgrenska Academy, University of Gothenburg, Medicinaregatan 9A, Box 440, 413 90, Gothenburg, Sweden
| | - Marcos Perez-Basterrechea
- Unit of Transplants, Cell Therapy and Regenerative Medicine, Central University Hospital of Asturias, Av. Roma s/n, 33011, Oviedo, Spain
| | - Pablo Garrido
- Department of Functional Biology. Physiology Area, University of Oviedo, Av. Julián Clavería, No. 6, 33006, Oviedo, Spain.,Prostate Cancer Institute, National University of Ireland, Galway. Co, Galway, Ireland
| | - Elena Díaz
- Department of Functional Biology. Physiology Area, University of Oviedo, Av. Julián Clavería, No. 6, 33006, Oviedo, Spain
| | - Ana Alonso
- Department of Functional Biology. Physiology Area, University of Oviedo, Av. Julián Clavería, No. 6, 33006, Oviedo, Spain
| | - Jesús Otero
- Unit of Transplants, Cell Therapy and Regenerative Medicine, Central University Hospital of Asturias, Av. Roma s/n, 33011, Oviedo, Spain
| | - Enrique Colado
- Service of Hematology, Central University Hospital of Asturias, Av/Roma s/n, 33011, Oviedo, Spain.,Department of Laboratory Medicine, Central University Hospital of Asturias, Av/Roma s/n, 33011, Oviedo, Spain
| | - Celestino González
- Department of Functional Biology. Physiology Area, University of Oviedo, Av. Julián Clavería, No. 6, 33006, Oviedo, Spain.
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Cai M, Ma Y, Zhang W, Wang S, Wang Y, Tian L, Peng Z, Wang H, Qingrong T. Apigenin-7-O-β-D-(-6''-p-coumaroyl)-Glucopyranoside Treatment Elicits Neuroprotective Effect against Experimental Ischemic Stroke. Int J Biol Sci 2016; 12:42-52. [PMID: 26722216 PMCID: PMC4679397 DOI: 10.7150/ijbs.12275] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Accepted: 09/21/2015] [Indexed: 02/05/2023] Open
Abstract
Stroke is the major cause of permanent disability and mortality in China. Apigenin-7-O-β-D-(-6''-p-coumaroyl)-glucopyranoside (APG) is a glycoside subtype of apigenin and has the antioxidant activity; however, whether and how it plays a neuroprotective role following cerebral ischemia remains unknown. In present study, we adopted the oxygen glucose/reperfusion model in PC12 cells, bilateral common carotid artery occlusion model in C57B6 mice and middle cerebral artery occlusion model in SD rats to observe the therapeutic effects of APG on ischemic stroke. We also discussed the underlying mechanism. Treatment with 0.4 μg/ml or 0.8 μg/ml APG promoted cell viability and proliferation, reduced LDH release and apoptotic cell death levels in PC12 cells. Treatment with 50 mg/kg or 100 mg/kg APG at 30 minutes after reperfusion improved neurological outcomes in vivo, as demonstrated by elevation of neurological scores in both mice and rats. It also increased the number of survival neurons in mice and reduced infarct volume in rats. APG also increased the contents of Mn-SOD and the phosphorylation level of STAT3, elevated the antioxidant activity and reduced oxidative productions. These findings revealed a neuroprotective effect of APG, which possibly induced by the STAT3 phosphorylation-mediated Mn-SOD up-regulation.
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Affiliation(s)
| | | | - Wei Zhang
- 3. Department of Pharmacology; Xijing hospital, the Forth Military Medical School
| | | | | | - Li Tian
- 2. Department of Anesthesiology
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Guan J, Du S, Lv T, Qu S, Fu Q, Yuan Y. Oxygen-glucose deprivation preconditioning protects neurons against oxygen-glucose deprivation/reperfusion induced injury via bone morphogenetic protein-7 mediated ERK, p38 and Smad signalling pathways. Clin Exp Pharmacol Physiol 2015; 43:125-34. [PMID: 26385023 DOI: 10.1111/1440-1681.12492] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 09/06/2015] [Accepted: 09/11/2015] [Indexed: 11/28/2022]
Affiliation(s)
- Junhong Guan
- Department of Neurosurgery; Shengjing Hospital of China Medical University; Shenyang China
| | - Shaonan Du
- Department of Neurosurgery; Shenyang Red Cross Hospital; Shenyang China
| | - Tao Lv
- Department of Neurosurgery; Shengjing Hospital of China Medical University; Shenyang China
| | - Shengtao Qu
- Department of Neurosurgery; Shengjing Hospital of China Medical University; Shenyang China
| | - Qiang Fu
- Department of Neurosurgery; Shengjing Hospital of China Medical University; Shenyang China
| | - Ye Yuan
- Department of Neurosurgery; Shengjing Hospital of China Medical University; Shenyang China
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Soltani Z, Khaksari M, Jafari E, Iranpour M, Shahrokhi N. Is genistein neuroprotective in traumatic brain injury? Physiol Behav 2015; 152:26-31. [DOI: 10.1016/j.physbeh.2015.08.037] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Revised: 08/17/2015] [Accepted: 08/29/2015] [Indexed: 01/12/2023]
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Effect of Electroacupuncture on Cell Apoptosis and ERK Signal Pathway in the Hippocampus of Adult Rats with Cerebral Ischemia-Reperfusion. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:414965. [PMID: 26633985 PMCID: PMC4655048 DOI: 10.1155/2015/414965] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 09/23/2015] [Accepted: 10/19/2015] [Indexed: 12/28/2022]
Abstract
Background. EA therapy is a traditional therapeutic approach for alleviation of cerebral I/R-induced brain injury. We investigated the effect of EA on MCAO rat model to examine the mechanism of apoptosis in the rat hippocampus. Methods. 200 male Sprague-Dawley rats were randomly divided into sham, I/R, EA, ERK inhibitor (PD), and ERK inhibitor+EA (PD+EA) groups. Each group was subdivided into 5 groups according to different time points. Locomotor behaviors were evaluated using neurological scales and morphological examination was performed using HE staining. Apoptosis index of neural cells in local infarcted area was measured by TUNEL and p-ERK expression was detected using immunohistochemistry technique and western blot analysis. Results. Neurological deficit scores and neural apoptosis in the EA group were lower than I/R group at the same time points, respectively. At different time points, p-ERK level was increased in the ischemic hippocampal CA1 in the EA group as compared to I/R group; the increased level was increased most at 1 day, 3 days, and 1 week (p < 0.01). Conclusion. EA alleviates neurological deficit, reduces apoptosis index, and simultaneously upregulates the expression of p-ERK signal pathway in rats subjected to I/R injury.
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Lee EB, Ahn D, Kim BJ, Lee SY, Seo HW, Cha YS, Jeon H, Eun JS, Cha DS, Kim DK. Genistein from Vigna angularis Extends Lifespan in Caenorhabditis elegans. Biomol Ther (Seoul) 2015; 23:77-83. [PMID: 25593647 PMCID: PMC4286753 DOI: 10.4062/biomolther.2014.075] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 09/03/2014] [Accepted: 09/04/2014] [Indexed: 01/24/2023] Open
Abstract
The seed of Vigna angularis has long been cultivated as a food or a folk medicine in East Asia. Genistein (4',5,7-trihydroxyisoflavone), a dietary phytoestrogen present in this plant, has been known to possess various biological properties. In this study, we investigated the possible lifespan-extending effects of genistein using Caenorhabditis elegans model system. We found that the lifespan of nematode was significantly prolonged in the presence of genistein under normal culture condition. In addition, genistein elevated the survival rate of nematode against stressful environment including heat and oxidative conditions. Further studies demonstrated that genistein-mediated increased stress tolerance of nematode could be attributed to enhanced expressions of stress resistance proteins such as superoxide dismutase (SOD-3) and heat shock protein (HSP-16.2). Moreover, we failed to find genistein-induced significant change in aging-related factors including reproduction, food intake, and growth, indicating genistein exerts longevity activity independent of affecting these factors. Genistein treatment also led to an up-regulation of locomotory ability of aged nematode, suggesting genistein affects healthspan as well as lifespan of nematode. Our results represent that genistein has beneficial effects on the lifespan of C. elegans under both of normal and stress condition via elevating expressions of stress resistance proteins.
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Affiliation(s)
- Eun Byeol Lee
- College of Pharmacy, Woosuk University, Jeonju 565-701
| | - Dalrae Ahn
- College of Pharmacy, Woosuk University, Jeonju 565-701
| | - Ban Ji Kim
- College of Pharmacy, Woosuk University, Jeonju 565-701
| | - So Yeon Lee
- College of Pharmacy, Woosuk University, Jeonju 565-701
| | - Hyun Won Seo
- College of Pharmacy, Woosuk University, Jeonju 565-701
| | - Youn-Soo Cha
- Department of Food Science and Human Nutrition, Chonbuk National University, Jeonju 561-756, Republic of Korea
| | - Hoon Jeon
- College of Pharmacy, Woosuk University, Jeonju 565-701
| | - Jae Soon Eun
- College of Pharmacy, Woosuk University, Jeonju 565-701
| | - Dong Seok Cha
- College of Pharmacy, Woosuk University, Jeonju 565-701
| | - Dae Keun Kim
- College of Pharmacy, Woosuk University, Jeonju 565-701
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