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Kumar Nelson V, Jha NK, Nuli MV, Gupta S, Kanna S, Gahtani RM, Hani U, Singh AK, Abomughaid MM, Abomughayedh AM, Almutary AG, Iqbal D, Al Othaim A, Begum SS, Ahmad F, Mishra PC, Jha SK, Ojha S. Unveiling the impact of aging on BBB and Alzheimer's disease: Factors and therapeutic implications. Ageing Res Rev 2024; 98:102224. [PMID: 38346505 DOI: 10.1016/j.arr.2024.102224] [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: 08/29/2023] [Revised: 02/01/2024] [Accepted: 02/03/2024] [Indexed: 05/12/2024]
Abstract
Alzheimer's disease (AD) is a highly prevalent neurodegenerative condition that has devastating effects on individuals, often resulting in dementia. AD is primarily defined by the presence of extracellular plaques containing insoluble β-amyloid peptide (Aβ) and neurofibrillary tangles (NFTs) composed of hyperphosphorylated tau protein (P-tau). In addition, individuals afflicted by these age-related illnesses experience a diminished state of health, which places significant financial strain on their loved ones. Several risk factors play a significant role in the development of AD. These factors include genetics, diet, smoking, certain diseases (such as cerebrovascular diseases, obesity, hypertension, and dyslipidemia), age, and alcohol consumption. Age-related factors are key contributors to the development of vascular-based neurodegenerative diseases such as AD. In general, the process of aging can lead to changes in the immune system's responses and can also initiate inflammation in the brain. The chronic inflammation and the inflammatory mediators found in the brain play a crucial role in the dysfunction of the blood-brain barrier (BBB). Furthermore, maintaining BBB integrity is of utmost importance in preventing a wide range of neurological disorders. Therefore, in this review, we discussed the role of age and its related factors in the breakdown of the blood-brain barrier and the development of AD. We also discussed the importance of different compounds, such as those with anti-aging properties, and other compounds that can help maintain the integrity of the blood-brain barrier in the prevention of AD. This review builds a strong correlation between age-related factors, degradation of the BBB, and its impact on AD.
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Affiliation(s)
- Vinod Kumar Nelson
- Raghavendra Institute of Pharmaceutical Education and Research, Anantapur, India.
| | - Niraj Kumar Jha
- Centre for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India; Centre of Research Impact and Outcome, Chitkara University, Rajpura 140401, Punjab, India; School of Bioengineering & Biosciences, Lovely Professional University, Phagwara 144411, India; Department of Biotechnology Engineering and Food Technology, Chandigarh University, Mohali, India.
| | - Mohana Vamsi Nuli
- Raghavendra Institute of Pharmaceutical Education and Research, Anantapur, India
| | - Saurabh Gupta
- Department of Biotechnology, GLA University, Mathura, Uttar Pradesh, India
| | - Sandeep Kanna
- Department of pharmaceutics, Chalapathi Institute of Pharmaceutical Sciences, Chalapathi Nagar, Guntur 522034, India
| | - Reem M Gahtani
- Departement of Clinical Laboratory Sciences, King Khalid University, Abha, Saudi Arabia
| | - Umme Hani
- Department of pharmaceutics, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Arun Kumar Singh
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology BHU, Varanasi, Uttar Pradesh, India
| | - Mosleh Mohammad Abomughaid
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, University of Bisha, Bisha 61922, Saudi Arabia
| | - Ali M Abomughayedh
- Pharmacy Department, Aseer Central Hospital, Ministry of Health, Saudi Arabia
| | - Abdulmajeed G Almutary
- Department of Biomedical Sciences, College of Health Sciences, Abu Dhabi University, Abu Dhabi, P.O. Box 59911, United Arab Emirates
| | - Danish Iqbal
- Department of Health Information Management, College of Applied Medical Sciences, Buraydah Private Colleges, Buraydah 51418, Saudi Arabia
| | - Ayoub Al Othaim
- Department of Medical Laboratory Sciences, College of Applied Medical Science, Majmaah University, Al-Majmaah 11952, Saudi Arabia.
| | - S Sabarunisha Begum
- Department of Biotechnology, P.S.R. Engineering College, Sivakasi 626140, India
| | - Fuzail Ahmad
- Respiratory Care Department, College of Applied Sciences, Almaarefa University, Diriya, Riyadh, 13713, Saudi Arabia
| | - Prabhu Chandra Mishra
- Department of Biotechnology, School of Engineering and Technology, Sharda University, Greater Noida, India
| | - Saurabh Kumar Jha
- Department of Zoology, Kalindi College, University of Delhi, 110008, India.
| | - Shreesh Ojha
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, P.O. Box 15551, United Arab Emirates
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Zhao J, Wei M, Guo M, Wang M, Niu H, Xu T, Zhou Y. GSK3: A potential target and pending issues for treatment of Alzheimer's disease. CNS Neurosci Ther 2024; 30:e14818. [PMID: 38946682 PMCID: PMC11215492 DOI: 10.1111/cns.14818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/21/2024] [Accepted: 05/27/2024] [Indexed: 07/02/2024] Open
Abstract
Glycogen synthase kinase-3 (GSK3), consisting of GSK3α and GSK3β subtypes, is a complex protein kinase that regulates numerous substrates. Research has observed increased GSK3 expression in the brains of Alzheimer's disease (AD) patients and models. AD is a neurodegenerative disorder with diverse pathogenesis and notable cognitive impairments, characterized by Aβ aggregation and excessive tau phosphorylation. This article provides an overview of GSK3's structure and regulation, extensively analyzing its relationship with AD factors. GSK3 overactivation disrupts neural growth, development, and function. It directly promotes tau phosphorylation, regulates amyloid precursor protein (APP) cleavage, leading to Aβ formation, and directly or indirectly triggers neuroinflammation and oxidative damage. We also summarize preclinical research highlighting the inhibition of GSK3 activity as a primary therapeutic approach for AD. Finally, pending issues like the lack of highly specific and affinity-driven GSK3 inhibitors, are raised and expected to be addressed in future research. In conclusion, GSK3 represents a target in AD treatment, filled with hope, challenges, opportunities, and obstacles.
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Affiliation(s)
- Jiahui Zhao
- School of Basic Medical SciencesZhejiang Chinese Medical UniversityHangzhouChina
| | - Mengying Wei
- College of Pharmaceutical SciencesZhejiang UniversityHangzhouChina
- Future Health Laboratory, Innovation Center of Yangtze River DeltaZhejiang UniversityJiaxingChina
| | - Minsong Guo
- College of Pharmaceutical SciencesZhejiang UniversityHangzhouChina
- Cangnan County Qiushi Innovation Research Institute of Traditional Chinese MedicineWenzhouChina
| | - Mengyao Wang
- School of Basic Medical SciencesZhejiang Chinese Medical UniversityHangzhouChina
| | - Hongxia Niu
- School of Basic Medical SciencesZhejiang Chinese Medical UniversityHangzhouChina
- Key Laboratory of Blood‐stasis‐toxin Syndrome of Zhejiang ProvinceHangzhouChina
| | - Tengfei Xu
- College of Pharmaceutical SciencesZhejiang UniversityHangzhouChina
- Cangnan County Qiushi Innovation Research Institute of Traditional Chinese MedicineWenzhouChina
| | - Yuan Zhou
- School of Basic Medical SciencesZhejiang Chinese Medical UniversityHangzhouChina
- Key Laboratory of Blood‐stasis‐toxin Syndrome of Zhejiang ProvinceHangzhouChina
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3
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Liu S, Wang M, Xiao H, Ye J, Cao L, Li W, Sun G. Advancements in research on the effects of panax notoginseng saponin constituents in ameliorating learning and memory disorders. Heliyon 2024; 10:e28581. [PMID: 38586351 PMCID: PMC10998096 DOI: 10.1016/j.heliyon.2024.e28581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 03/20/2024] [Accepted: 03/20/2024] [Indexed: 04/09/2024] Open
Abstract
Learning and memory disorder is a cluster of symptoms caused by neuronal aging and other diseases of the central nervous system (CNS). Panax notoginseng saponins (PNS) are a series of saponins derived from the natural active ingredients of traditional Chinese medicine (TCM) that have neuroprotective effects on the central nervous system. In this paper, we review the ameliorative effects and mechanisms of Panax notoginseng saponin-like components on learning and memory disorders to provide valuable references and insights for the development of new drugs for the treatment of learning and memory disorders. Our summary results suggest that Panax ginseng saponins have significant effects on improving learning and memory disorders, and these effects and potential mechanisms are mediated by their anti-inflammatory, anti-apoptotic, antioxidant, β-amyloid lowering, mitochondrial homeostasis in vivo, neuronal structure and function improving, neurogenesis promoting, neurotransmitter release regulating, and probiotic homeostasis in vivo activities. These findings suggest the potential of Panax notoginseng saponin-like constituents as drug candidates for improving learning and memory disorders.
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Affiliation(s)
- Shusen Liu
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
- School of Pharmacy, Harbin University of Commerce, Harbin, 150076, China
| | - Min Wang
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Haiyan Xiao
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Jingxue Ye
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Li Cao
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Wenlan Li
- School of Pharmacy, Harbin University of Commerce, Harbin, 150076, China
| | - Guibo Sun
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
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Kim S, Shin SJ, Nam Y, Park YH, Kim BH, Park HH, Kumar V, Yoo DH, Lee YY, Hoe HS, Moon M. Korean red ginseng polysaccharide as a potential therapeutic agent targeting tau pathology in Alzheimer's disease. Int J Biol Macromol 2024; 263:130516. [PMID: 38423419 DOI: 10.1016/j.ijbiomac.2024.130516] [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: 08/07/2023] [Revised: 01/02/2024] [Accepted: 02/26/2024] [Indexed: 03/02/2024]
Abstract
Tau is a microtubule-associated protein that plays a critical role in the stabilization and modulation of neuronal axons. Tau pathology is stronger associated with cognitive decline in patients with Alzheimer's disease (AD) than amyloid beta (Aβ) pathology. Hence, tau targeting is a promising approach for the treatment of AD. Previous studies have demonstrated that the non-saponin fraction with rich polysaccharide (NFP) from Korean red ginseng (KRG) can modulate tau aggregation and exert a therapeutic effect on AD. Therefore, we investigated the efficacy of NFP isolated from KRG on tau pathology in experimental models of AD. Our results showed that NFP from KRG ameliorated deposition and hyperphosphorylation of tau in the brain of 3xTg mice. Moreover, NFP from KRG modulated the aggregation and dissociation of tau K18 in vitro. We demonstrated the alleviatory effects of NFP from KRG on hyperphosphorylated tau and tau kinase in okadaic acid-treated HT22 cells. Furthermore, NFP from KRG mitigated Aβ deposition, neurodegeneration, and neuroinflammation in 3xTg mice. We revealed the neuroprotective effects of NFP from KRG on tau-induced neuronal loss in HT22 cells. Our results indicate that NFP extracted from KRG is a novel therapeutic agent for the treatment of AD associated with tau pathology.
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Affiliation(s)
- Sujin Kim
- Department of Biochemistry, College of Medicine, Konyang University, 158, Gwanjeodong-ro, Seo-gu, Daejeon 35365, Republic of Korea; Research Institute for Dementia Science, Konyang University, 158, Gwanjeodong-ro, Seo-gu, Daejeon 35365, Republic of Korea
| | - Soo Jung Shin
- Department of Biochemistry, College of Medicine, Konyang University, 158, Gwanjeodong-ro, Seo-gu, Daejeon 35365, Republic of Korea
| | - Yunkwon Nam
- Department of Biochemistry, College of Medicine, Konyang University, 158, Gwanjeodong-ro, Seo-gu, Daejeon 35365, Republic of Korea
| | - Yong Ho Park
- Department of Biochemistry, College of Medicine, Konyang University, 158, Gwanjeodong-ro, Seo-gu, Daejeon 35365, Republic of Korea
| | - Byeong-Hyeon Kim
- Department of Biochemistry, College of Medicine, Konyang University, 158, Gwanjeodong-ro, Seo-gu, Daejeon 35365, Republic of Korea
| | - Hyun Ha Park
- Department of Biochemistry, College of Medicine, Konyang University, 158, Gwanjeodong-ro, Seo-gu, Daejeon 35365, Republic of Korea
| | - Vijay Kumar
- Department of Biochemistry, College of Medicine, Konyang University, 158, Gwanjeodong-ro, Seo-gu, Daejeon 35365, Republic of Korea
| | - Doo-Han Yoo
- Research Institute for Dementia Science, Konyang University, 158, Gwanjeodong-ro, Seo-gu, Daejeon 35365, Republic of Korea; Department of Occupational Therapy, Konyang University, 158, Gwanjeodong-ro, Seo-gu, Daejeon 35365, Republic of Korea
| | - Yong Yook Lee
- The Korean Ginseng Research Institute, Korea Ginseng Corporation, Gajeong-ro 30, Shinseong-dong, Yuseong-gu, Daejeon 34128, Republic of Korea.
| | - Hyang-Sook Hoe
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-ro, Dong-gu 41068, Republic of Korea; Department of Brain & Cognitive Sciences, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu 42988, Republic of Korea.
| | - Minho Moon
- Department of Biochemistry, College of Medicine, Konyang University, 158, Gwanjeodong-ro, Seo-gu, Daejeon 35365, Republic of Korea; Research Institute for Dementia Science, Konyang University, 158, Gwanjeodong-ro, Seo-gu, Daejeon 35365, Republic of Korea.
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Zhou S, Tu L, Chen W, Yan G, Guo H, Wang X, Hu Q, Liu H, Li F. Alzheimer's disease, a metabolic disorder: Clinical advances and basic model studies (Review). Exp Ther Med 2024; 27:63. [PMID: 38234618 PMCID: PMC10792406 DOI: 10.3892/etm.2023.12351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 11/22/2023] [Indexed: 01/19/2024] Open
Abstract
Alzheimer's disease (AD) is a type of neurodegenerative disease characterized by cognitive impairment that is aggravated with age. The pathological manifestations include extracellular amyloid deposition, intracellular neurofibrillary tangles and loss of neurons. As the world population ages, the incidence of AD continues to increase, not only posing a significant threat to the well-being and health of individuals but also bringing a heavy burden to the social economy. There is epidemiological evidence suggesting a link between AD and metabolic diseases, which share pathological similarities. This potential link would deserve further consideration; however, the pathogenesis and therapeutic efficacy of AD remain to be further explored. The complex pathogenesis and pathological changes of AD pose a great challenge to the choice of experimental animal models. To understand the role of metabolic diseases in the development of AD and the potential use of drugs for metabolic diseases, the present article reviews the research progress of the comorbidity of AD with diabetes, obesity and hypercholesterolemia, and summarizes the different roles of animal models in the study of AD to provide references for researchers.
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Affiliation(s)
- Shanhu Zhou
- Department of Neurology, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, Hubei 430081, P.R. China
| | - Limin Tu
- Department of Neurology, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, Hubei 430081, P.R. China
| | - Wei Chen
- Department of Neurology, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, Hubei 430081, P.R. China
| | - Gangli Yan
- Department of Neurology, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, Hubei 430081, P.R. China
| | - Hongmei Guo
- Department of Neurology, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, Hubei 430081, P.R. China
| | - Xinhua Wang
- Department of Neurology, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, Hubei 430081, P.R. China
| | - Qian Hu
- Department of Neurology, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, Hubei 430081, P.R. China
| | - Huiqing Liu
- Department of Neurology, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, Hubei 430081, P.R. China
| | - Fengguang Li
- Department of Neurology, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, Hubei 430081, P.R. China
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Liu J, Li T, Zhong G, Pan Y, Gao M, Su S, Liang Y, Ma C, Liu Y, Wang Q, Shi Q. Exploring the therapeutic potential of natural compounds for Alzheimer's disease: Mechanisms of action and pharmacological properties. Biomed Pharmacother 2023; 166:115406. [PMID: 37659206 DOI: 10.1016/j.biopha.2023.115406] [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: 07/18/2023] [Revised: 08/26/2023] [Accepted: 08/28/2023] [Indexed: 09/04/2023] Open
Abstract
Alzheimer's Disease (AD) is a global public health priority characterized by high mortality rates in adults and an increasing prevalence in aging populations worldwide. Despite significant advancements in comprehending the pathogenesis of AD since its initial report in 1907, there remains a lack of effective curative or preventive measures for the disease. In recent years, natural compounds sourced from diverse origins have garnered considerable attention as potential therapeutic agents for AD, owing to their anti-inflammatory, antioxidant, and neuroprotective properties. This review aims to consolidate the therapeutic effects of natural compounds on AD, specifically targeting the reduction of β-amyloid (Aβ) overproduction, anti-apoptosis, autophagy, neuroinflammation, oxidative stress, endoplasmic reticulum (ER) stress, and mitochondrial dysfunction. Notably, the identified compounds exhibiting these effects predominantly originate from plants. This review provides valuable insights into the potential of natural compounds as a reservoir of novel therapeutic agents for AD, thereby stimulating further research and contributing to the development of efficacious treatments for this devastating disease.
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Affiliation(s)
- Jinman Liu
- Affiliated Jiangmen TCM Hospital of Ji'nan University, Jiangmen 529099, China
| | - Tianyao Li
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Guangcheng Zhong
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Yaru Pan
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Minghuang Gao
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Shijie Su
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Yong Liang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Cuiru Ma
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Yuanyue Liu
- Department of Neurology, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210017, China
| | - Qi Wang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China.
| | - Qing Shi
- Affiliated Jiangmen TCM Hospital of Ji'nan University, Jiangmen 529099, China.
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Alves SS, Servilha-Menezes G, Rossi L, da Silva Junior RMP, Garcia-Cairasco N. Evidence of disturbed insulin signaling in animal models of Alzheimer's disease. Neurosci Biobehav Rev 2023; 152:105326. [PMID: 37479008 DOI: 10.1016/j.neubiorev.2023.105326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 06/02/2023] [Accepted: 07/17/2023] [Indexed: 07/23/2023]
Abstract
Since glucose reuptake by neurons is mostly independent of insulin, it has been an intriguing question whether insulin has or not any roles in the brain. Consequently, the identification of insulin receptors in the central nervous system has fueled investigations of insulin functions in the brain. It is also already known that insulin can influence glucose reuptake by neurons, mostly during activities that have the highest energy demand. The identification of high density of insulin receptors in the hippocampus also suggests that insulin may present important roles related to memory. In this context, studies have reported worse performance in cognitive tests among diabetic patients. In addition, alterations in the regulation of central insulin pathways have been observed in the brains of Alzheimer's disease (AD) patients. In fact, some authors have proposed AD as a third type of diabetes and recently, our group proposed insulin resistance as a common link between different AD hypotheses. Therefore, in the present narrative review, we intend to revise and gather the evidence of disturbed insulin signaling in experimental animal models of AD.
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Affiliation(s)
- Suélen Santos Alves
- Department of Neurosciences and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo (FMRP-USP), Brazil
| | - Gabriel Servilha-Menezes
- Department of Physiology, Ribeirão Preto Medical School - University of São Paulo (FMRP-USP), Brazil
| | - Leticia Rossi
- Department of Physiology, Ribeirão Preto Medical School - University of São Paulo (FMRP-USP), Brazil
| | - Rui Milton Patrício da Silva Junior
- Department of Physiology, Ribeirão Preto Medical School - University of São Paulo (FMRP-USP), Brazil; Institute of Neuroscience of Castilla y León, University of Salamanca, Salamanca, Spain
| | - Norberto Garcia-Cairasco
- Department of Neurosciences and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo (FMRP-USP), Brazil; Department of Physiology, Ribeirão Preto Medical School - University of São Paulo (FMRP-USP), Brazil.
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8
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Huang Y, Yang H, Yang B, Zheng Y, Hou X, Chen G, Zhang W, Zeng X, DU B. Ginsenoside-Rg1 combined with a conditioned medium from induced neuron-like hUCMSCs alleviated the apoptosis in a cell model of ALS through regulating the NF-κB/Bcl-2 pathway. Chin J Nat Med 2023; 21:540-550. [PMID: 37517821 DOI: 10.1016/s1875-5364(23)60445-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Indexed: 08/01/2023]
Abstract
Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease affecting both upper and lower motor neurons in the brain and spinal cord. One important aspect of ALS pathogenesis is superoxide dismutase 1 (SOD1) mutant-mediated mitochondrial toxicity, leading to apoptosis in neurons. This study aimed to evaluate the neural protective synergistic effects of ginsenosides Rg1 (G-Rg1) and conditioned medium (CM) on a mutational SOD1 cell model, and to explore the underlying mechanisms. We found that the contents of nerve growth factor, glial cell line-derived neurotrophic factor, and brain-derived neurotrophic factor significantly increased in CM after human umbilical cord mesenchymal stem cells (hUCMSCs) were exposed to neuron differentiation reagents for seven days. CM or G-Rg1 decreased the apoptotic rate of SOD1G93A-NSC34 cells to a certain extent, but their combination brought about the least apoptosis, compared with CM or G-Rg1 alone. Further research showed that the anti-apoptotic protein Bcl-2 was upregulated in all the treatment groups. Proteins associated with mitochondrial apoptotic pathways, such as Bax, caspase 9 (Cas-9), and cytochrome c (Cyt c), were downregulated. Furthermore, CM or G-Rg1 also inhibited the activation of the nuclear factor-kappa B (NF-κB) signaling pathway by reducing the phosphorylation of p65 and IκBα. CM/G-Rg1 or their combination also reduced the apoptotic rate induced by betulinic acid (BetA), an agonist of the NF-κB signaling pathway. In summary, the combination of CM and G-Rg1 effectively reduced the apoptosis of SOD1G93A-NSC34 cells through suppressing the NF-κB/Bcl-2 signaling pathway (Fig. 1 is a graphical representation of the abstract).
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Affiliation(s)
- Yu Huang
- Labortory of Stem Cell Clinical Reaearch, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Labortory of Stem Cell Biology and Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Labortory of Stem Cell Biology and Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou 510006, China; Labortory of Stem Cell Clinical Research, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510006, China
| | - Huili Yang
- Labortory of Stem Cell Clinical Reaearch, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Labortory of Stem Cell Biology and Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Labortory of Stem Cell Biology and Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou 510006, China; Department of Neurology, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510006, China
| | - Biying Yang
- Labortory of Stem Cell Clinical Reaearch, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Labortory of Stem Cell Biology and Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Labortory of Stem Cell Biology and Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou 510006, China; Department of Neurology, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510006, China
| | - Yu Zheng
- Labortory of Stem Cell Clinical Reaearch, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Labortory of Stem Cell Biology and Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Labortory of Stem Cell Biology and Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou 510006, China; Department of Neurology, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510006, China
| | - Xiaomei Hou
- Labortory of Stem Cell Clinical Reaearch, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Labortory of Stem Cell Biology and Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Labortory of Stem Cell Biology and Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou 510006, China; Department of Neurology, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510006, China
| | - Guiling Chen
- Labortory of Stem Cell Clinical Reaearch, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Labortory of Stem Cell Biology and Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Labortory of Stem Cell Biology and Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou 510006, China; Labortory of Stem Cell Clinical Research, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510006, China
| | - Wenqi Zhang
- Labortory of Stem Cell Clinical Reaearch, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Labortory of Stem Cell Biology and Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Labortory of Stem Cell Biology and Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou 510006, China; Department of Neurology, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510006, China
| | - Xiang Zeng
- Labortory of Stem Cell Clinical Reaearch, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Labortory of Stem Cell Biology and Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Labortory of Stem Cell Biology and Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou 510006, China; Labortory of Stem Cell Clinical Research, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510006, China
| | - Baoxin DU
- Labortory of Stem Cell Clinical Reaearch, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Labortory of Stem Cell Biology and Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Labortory of Stem Cell Biology and Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou 510006, China; Department of Neurology, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510006, China.
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9
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Experimentally Induced Animal models for Cognitive dysfunction and Alzheimer's disease. MethodsX 2022; 9:101933. [DOI: 10.1016/j.mex.2022.101933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 11/16/2022] [Indexed: 11/27/2022] Open
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10
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Ginsenoside and Its Therapeutic Potential for Cognitive Impairment. Biomolecules 2022; 12:biom12091310. [PMID: 36139149 PMCID: PMC9496100 DOI: 10.3390/biom12091310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
Cognitive impairment (CI) is one of the major clinical features of many neurodegenerative diseases. It can be aging-related or even appear in non-central nerve system (CNS) diseases. CI has a wide spectrum that ranges from the cognitive complaint with normal screening tests to mild CI and, at its end, dementia. Ginsenosides, agents extracted from a key Chinese herbal medicine (ginseng), show great promise as a new therapeutic option for treating CI. This review covered both clinical trials and preclinical studies to summarize the possible mechanisms of how ginsenosides affect CI in different diseases. It shows that ginsenosides can modulate signaling pathways associated with oxidative stress, apoptosis, inflammation, synaptic plasticity, and neurogenesis. The involved signaling pathways mainly include the PI3K/Akt, CREB/BDNF, Keap1/Nrf2 signaling, and NF-κB/NLRP3 inflammasome pathways. We hope to provide a theoretical basis for the treatment of CI for related diseases by ginsenosides.
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11
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New insights into the role and mechanisms of ginsenoside Rg1 in the management of Alzheimer's disease. Biomed Pharmacother 2022; 152:113207. [PMID: 35667236 DOI: 10.1016/j.biopha.2022.113207] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 05/11/2022] [Accepted: 05/25/2022] [Indexed: 11/20/2022] Open
Abstract
Alzheimer's disease (AD) is a common neurodegenerative disorder in the elderly characterized by memory loss and cognitive dysfunction. The pathogenesis of AD is complex. One-targeted anti-AD drugs usually fail to delay AD progression. Traditional Chinese medicine records have documented the use of the roots of Panax ginseng (ginseng roots) and its prescriptions to treat dementia. Ginsenoside Rg1, the main ginsenoside component of ginseng roots, exhibits a certain therapeutic effect in the abovementioned diseases, suggesting its potential in the management of AD. Therefore, we combed the pathogenesis of AD and currently used anti-AD drugs, and reviewed the availability, pharmacokinetics, and pharmaceutic studies of ginsenoside Rg1. This review summarizes the therapeutic effects and mechanisms of ginsenoside Rg1 and its deglycosylated derivatives in AD in vivo and in vitro. The main mechanisms include improvement in Aβ and Tau pathologies, regulation of synaptic function and intestinal microflora, and reduction of inflammation, oxidative stress, and apoptosis. The underlying mechanisms mainly involve the regulation of PKC, MAPK, PI3K/Akt, CDK5, GSK-3β, BDNF/TrkB, PKA/CREB, FGF2/Akt, p21WAF1/CIP1, NF-κB, NLRP1, TLR3, and TLR4 signaling pathways. As the effects and underlying mechanisms of ginsenoside Rg1 on AD have not been systematically reviewed, we have provided a comprehensive review and shed light on the future directions in the utilization of ginsenoside Rg1 and ginseng roots as well as the development of anti-AD drugs.
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12
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Ding Y, Zhang H, Liu Z, Li Q, Guo Y, Chen Y, Chang Y, Cui H. Carnitine palmitoyltransferase 1 (CPT1) alleviates oxidative stress and apoptosis of hippocampal neuron in response to beta-Amyloid peptide fragment Aβ 25-35. Bioengineered 2021; 12:5440-5449. [PMID: 34424821 PMCID: PMC8806834 DOI: 10.1080/21655979.2021.1967032] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/06/2021] [Accepted: 08/07/2021] [Indexed: 11/16/2022] Open
Abstract
CPT1C, which is expressed in hippocampus, influences ceramide level, endogenous cannabinoid and oxidation process, as well as plays an important role in various brain functions such as learning. This study aimed to investigate the role of CPT1C in Alzheimer's disease (AD) and its underlying mechanism. We established a model of Alzheimer's disease in vitro by exposing primary hippocampal neurons to beta-Amyloid peptide fragment 25-35 (Aβ25-35). The cell viability, lactate dehydrogenase (LDH) level, expressions of reactive oxygen species (ROS), malondialdehyde (MDA) and superoxide dismutase (SOD) were detected using Cell Counting Kit-8 (CCK-8), LDH assay, ROS kits, malondialdehyde (MDA) kits and SOD kits, respectively. Moreover, the expression of oxidative stress-related proteins as well as the expressions of amyloid precursor protein (App), p-Tau andβ-site APP-cleaving enzyme1 (Bace-1) were measured using quantitative reverse transcription PCR (RT-qPCR) and western blot. Tunel and western blot were adopted to detect apoptosis as well as its related proteins. After the treatment of peroxisome proliferators-activated receptor alpha (PPARα), CPT1C expression was detected with the application of RT-qPCR and western blot. CPT1C expression was reduced in Aβ25-35-induced HT22 cells. Overexpression of CPT1C relieved cell viability and toxic injury as well as attenuated oxidative stress, apoptosis and expression levels of AD marker proteins. Moreover, higher doses of PPARα agonist activate the expression of CPT1C in Aβ25-35-induced HT22 cells. In conclusion, CPT1C alleviates Aβ25-35-induced oxidative stress, apoptosis and deposition of AD marker proteins in hippocampal neurons, suggesting that CPT1C has favorable effects on alleviating AD and participates in PPARα activation.
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Affiliation(s)
- Yiyun Ding
- Department of Geriatrics, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Hongxia Zhang
- Laboratory Division, Ankang Center for Disease Control and Prevention, Ankang, Shaanxi Province, China
| | - Zhaojun Liu
- Department of Geriatrics, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Qiuping Li
- Department of Geriatrics, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Yujiao Guo
- Department of Geriatrics, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Ye Chen
- Department of Geriatrics, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Yue Chang
- Department of Geriatrics, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Hongyan Cui
- Department of Geriatrics, The Second Hospital of Tianjin Medical University, Tianjin, China
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13
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Zhang H, Su Y, Sun Z, Chen M, Han Y, Li Y, Dong X, Ding S, Fang Z, Li W, Li W. Ginsenoside Rg1 alleviates Aβ deposition by inhibiting NADPH oxidase 2 activation in APP/PS1 mice. J Ginseng Res 2021; 45:665-675. [PMID: 34764721 PMCID: PMC8569324 DOI: 10.1016/j.jgr.2021.03.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 02/25/2021] [Accepted: 03/10/2021] [Indexed: 01/18/2023] Open
Abstract
Background Ginsenoside Rg1 (Rg1), an active ingredient in ginseng, may be a potential agent for the treatment of Alzheimer’s disease (AD). However, the protective effect of Rg1 on neurodegeneration in AD and its mechanism of action are still incompletely understood. Methods Wild type (WT) and APP/PS1 AD mice, from 6 to 9 months old, were used in the experiment. The open field test (OFT) and Morris water maze (MWM) were used to detect behavioral changes. Neuronal damage was assessed by hematoxylin and eosin (H&E) and Nissl staining. Immunofluorescence, western blotting, and quantitative real-time polymerase chain reaction (q-PCR) were used to examine postsynaptic density 95 (PSD95) expression, amyloid beta (Aβ) deposition, Tau and phosphorylated Tau (p-Tau) expression, reactive oxygen species (ROS) production, and NAPDH oxidase 2 (NOX2) expression. Results Rg1 treatment for 12 weeks significantly ameliorated cognitive impairments and neuronal damage and decreased the p-Tau level, amyloid precursor protein (APP) expression, and Aβ generation in APP/PS1 mice. Meanwhile, Rg1 treatment significantly decreased the ROS level and NOX2 expression in the hippocampus and cortex of APP/PS1 mice. Conclusions Rg1 alleviates cognitive impairments, neuronal damage, and reduce Aβ deposition by inhibiting NOX2 activation in APP/PS1 mice. Rg1 treatment significantly alleviated cognitive dysfunction and neuronal damage in APP/PS1 mice. Rg1 treatment significantly reduced APP expression and Aβ deposition in APP/PS1 mice. The expression of NOX2 and ROS production were significantly increased in APP/PS1 mice. Rg1 treatment significantly decreased NOX2 expression and ROS accumulation in APP/PS1 mice.
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Affiliation(s)
- Han Zhang
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei, China
| | - Yong Su
- Department of Pharmacy, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Zhenghao Sun
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei, China
| | - Ming Chen
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei, China
| | - Yuli Han
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei, China
| | - Yan Li
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei, China
| | - Xianan Dong
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei, China
| | - Shixin Ding
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei, China
| | - Zhirui Fang
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei, China
| | - Weiping Li
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei, China
| | - Weizu Li
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei, China
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14
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Yang X, Chu SF, Wang ZZ, Li FF, Yuan YH, Chen NH. Ginsenoside Rg1 exerts neuroprotective effects in 3-nitropronpionic acid-induced mouse model of Huntington's disease via suppressing MAPKs and NF-κB pathways in the striatum. Acta Pharmacol Sin 2021; 42:1409-1421. [PMID: 33214696 PMCID: PMC8379213 DOI: 10.1038/s41401-020-00558-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 10/18/2020] [Indexed: 12/16/2022] Open
Abstract
Huntington's disease (HD) is one of main neurodegenerative diseases, characterized by striatal atrophy, involuntary movements, and motor incoordination. Ginsenoside Rg1 (Rg1), an active ingredient in ginseng, possesses a variety of neuroprotective effects with low toxicity and side effects. In this study, we investigated the potential therapeutic effects of Rg1 in a mouse model of HD and explored the underlying mechanisms. HD was induced in mice by injection of 3-nitropropionic acid (3-NP, i.p.) for 4 days. From the first day of 3-NP injection, the mice were administered Rg1 (10, 20, 40 mg·kg-1, p.o.) for 5 days. We showed that oral pretreatment with Rg1 alleviated 3-NP-induced body weight loss and behavioral defects. Furthermore, pretreatment with Rg1 ameliorated 3-NP-induced neuronal loss and ultrastructural morphological damage in the striatum. Moreover, pretreatment with Rg1 reduced 3-NP-induced apoptosis and inhibited the activation of microglia, inflammatory mediators in the striatum. We revealed that Rg1 exerted neuroprotective effects by suppressing 3-NP-induced activation of the MAPKs and NF-κΒ signaling pathways in the striatum. Thus, our results suggest that Rg1 exerts therapeutic effects on 3-NP-induced HD mouse model via suppressing MAPKs and NF-κΒ signaling pathways. Rg1 may be served as a novel therapeutic option for HD.
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15
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Mehrdad J, Leila E, Emsehgol N. The effect of vitamin B12 on synaptic plasticity of hippocampus in Alzheimer's disease model rats. Int J Neurosci 2021; 133:654-659. [PMID: 34347557 DOI: 10.1080/00207454.2021.1962863] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND Hippocampus cells, responsible for learning and memory, are disturbed in Alzheimer's disease (AD), resulting in production of several inflammatory markers, such as neurexin 1 -neuroligin, cyclooxygenase-2 (COX-2), and caspase-3 proteins, used in measurement of AD's severity and development. Vitamin B12, which plays a role in brain functioning, has anti-inflammatory properties and its impairment is associated with apoptosis in Alzheimer's disease. This study aimed to investigate the effect of vitamin B12 on restoration of Synaptic Plasticity on scopolamine-induced AD in rats. METHODS To simulate AD, Rats, except the control group were i.p. injected with 3 mg/kg scopolamine. Before scopolamine the pretreatment group vitamin B12 (0.5, 2, and 4 mg/kg) was injected every day for the next 14 days. After 24 h, sectioning the rats' brains, the concentration of postsynaptic density protein 95 (PSD-95), neurexin 1-neurolgin, COX-2, and caspase-3 proteins in hippocampus were measured using immunoblotting. RESULTS B12 significantly enhanced molecular balance. PSD-95 and neurexin 1 and neuroligin concentrations were significantly reduced, whereas COX-2 and activated caspase-3 were enhanced in the hippocampus of scopolamine-injected subjects. Their alterations were decreased after B12 administration. CONCLUSIONS Vitamin B12 protected scopolamine-injected rats and inhibited hippocampal inflammation and apoptosis and preserved pre- and post-synaptic proteins and possibly synaptic integrity in hippocampus route.
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Affiliation(s)
- Jahanshahi Mehrdad
- Neuroscience Research Center, Department of Anatomy, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Elyasi Leila
- Neuroscience Research Center, Department of Anatomy, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Nikmahzar Emsehgol
- Neuroscience Research Center, Golestan University of Medical Sciences, Gorgan, Iran Neuroscience Research Center, Golestan University of Medical Sciences, Gorgan, Iran
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16
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An HM, Li MN, Yang H, Pang HQ, Qu C, Xu Y, Liu RZ, Peng C, Li P, Gao W. A validated UHPLC-MS/MS method for pharmacokinetic and brain distribution studies of twenty constituents in rat after oral administration of Jia-Wei-Qi-Fu-Yin. J Pharm Biomed Anal 2021; 202:114140. [PMID: 34015592 DOI: 10.1016/j.jpba.2021.114140] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 04/09/2021] [Accepted: 05/10/2021] [Indexed: 10/21/2022]
Abstract
A rapid ultra-high performance liquid chromatography coupled with triple quadrupole tandem mass spectrometry (UHPLC-QqQ MS/MS) approach with high sensitivity and selectivity was developed for the quantification of twenty compounds, including 9 saponins, 8 flavonoids, 2 oligosaccharide esters and 1 phenolic acid, in rat plasma and brain, which was administrated intragastrically with Jia-Wei-Qi-Fu-Yin (JWQFY), Mass spectrometric detection was operated under multiple reaction monitoring (MRM) mode. All calibration curves possessed good linearity with correlation coefficients ( r2) higher than 0.9916 in their respective linear ranges. For intra- and inter-day precision, all the relative standard deviations (RSDs) at different levels were less than 14.68 %. Based on the UHPLC-QqQ MS/MS quantitative results, pharmacokinetic study and brain distribution of multiple components in JWQFY was then successfully performed. As a result, constituents with discrepancy structures showed diverse pharmacokinetic and distribution characteristics. For instance, ferulic acid (phenolic acid), 3, 6'-disinapoyl sucrose and tenuifoliside A (oligosaccharide esters) showed short Tmax (< 10 min), whereas the Tmax of ginsenosides Rb1, Rb2 and Rc (ppd-type terpenoid saponins) were much longer (> 4 h). Besides, ferulic acid, epimedin C, icariin, glycyrrhizin, ginsenoside Rb1 and ginsenoside Rg1 were considered as the potential effective ingredients of JWQFY because of their relatively high exposure to blood and brain. Our study would provide relevant information for discovery of pharmacodynamic ingredients, as well as further action mechanisms investigations of JWQFY.
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Affiliation(s)
- Hai-Ming An
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, No. 24 Tongjia Lane, Nanjing, 210009, China
| | - Meng-Ning Li
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, No. 24 Tongjia Lane, Nanjing, 210009, China
| | - Hua Yang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, No. 24 Tongjia Lane, Nanjing, 210009, China
| | - Han-Qing Pang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, No. 24 Tongjia Lane, Nanjing, 210009, China
| | - Cheng Qu
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, No. 24 Tongjia Lane, Nanjing, 210009, China
| | - Yi Xu
- Beijing Zhongyan Tongrentang Pharmaceutical R&D co., Ltd, Beijing, 100079, China
| | - Run-Zhou Liu
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, No. 24 Tongjia Lane, Nanjing, 210009, China
| | - Chao Peng
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, No. 24 Tongjia Lane, Nanjing, 210009, China
| | - Ping Li
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, No. 24 Tongjia Lane, Nanjing, 210009, China.
| | - Wen Gao
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, No. 24 Tongjia Lane, Nanjing, 210009, China.
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Dhage PA, Sharbidre AA, Dakua SP, Balakrishnan S. Leveraging hallmark Alzheimer's molecular targets using phytoconstituents: Current perspective and emerging trends. Biomed Pharmacother 2021; 139:111634. [PMID: 33965726 DOI: 10.1016/j.biopha.2021.111634] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 04/19/2021] [Accepted: 04/19/2021] [Indexed: 01/04/2023] Open
Abstract
Alzheimer's disease (AD), a type of dementia, severely distresses different brain regions. Characterized by various neuropathologies, it interferes with cognitive functions and neuropsychiatrical controls. This progressive deterioration has negative impacts not only on an individual's daily activity but also on social and occupational life. The pharmacological approach has always remained in the limelight for the treatment of AD. However, this approach is condemned with several side effects. Henceforth, a change in treatment approach has become crucial. Plant-based natural products are garnering special attention due to lesser side effects associated with their use. The current review emphasizes the anti-AD properties of phytoconstituents, throws light on those under clinical trials, and compiles information on their specific mode of actions against AD-related different neuropathologies. The phytoconstituents alone or in combinations will surely help discover new potent drugs for the effective treatment of AD with lesser side effects than the currently available pharmacological treatment.
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Affiliation(s)
- Prajakta A Dhage
- Department of Zoology, K.R.T. Arts, B.H. Commerce and A.M. Science College (KTHM College), Nashik 422002, MS, India
| | - Archana A Sharbidre
- Department of Zoology, Savitribai Phule Pune University, Pune 411007, MS, India.
| | - Sarada P Dakua
- Department of Surgery, Hamad Medical Corporation (HMC), 3050 Doha, Qatar
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18
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Liang HY, Zhang PP, Zhang XL, Zheng YY, Huang YR, Zheng GQ, Lin Y. Preclinical systematic review of ginsenoside Rg1 for cognitive impairment in Alzheimer's disease. Aging (Albany NY) 2021; 13:7549-7569. [PMID: 33686024 PMCID: PMC7993717 DOI: 10.18632/aging.202619] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 10/01/2020] [Indexed: 05/02/2023]
Abstract
Ginseng has been used for the treatment of aging and memory impairment for thousands of years. Several studies have found that ginsenoside Rg1, as one of the main active components of ginseng, could potentially improve cognitive function in several different animal models. A preclinical systematic review to evaluate the efficacy and mechanisms of ginsenoside Rg1 for ameliorating cognitive impairments in Alzheimer's disease is reported here. We searched six databases from their inceptions to January 2019. Thirty-two studies were selected, which included a total of 1,643 animals. According to various cognitive behavioral tests, the results of the meta-analyses showed that ginsenoside Rg1 significantly improved cognitive behavioral impairments in most Alzheimer's disease models (P < 0.05), but there were no significant effects in animals with neuronal degeneration induced by chronic stress or in SAMP8 transgenic mice. The potential mechanisms included antioxidant and anti-inflammatory effects, amelioration of Alzheimer's disease-related pathology, synapse protection, and up-regulation of nerve cells via multiple signaling pathways.
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Affiliation(s)
- Hai-Yong Liang
- Department of Neurology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Pei-Pei Zhang
- Department of Neurology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Xi-Le Zhang
- Department of Neurology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Yan-Yan Zheng
- Department of Neurology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Yan-Ran Huang
- Department of Neurology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Guo-Qing Zheng
- Department of Neurology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Yan Lin
- Department of Neurology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou 325000, China
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Guo Y, Wang L, Lu J, Jiao J, Yang Y, Zhao H, Liang Z, Zheng H. Ginsenoside Rg1 improves cognitive capability and affects the microbiota of large intestine of tree shrew model for Alzheimer's disease. Mol Med Rep 2021; 23:291. [PMID: 33649817 PMCID: PMC7930927 DOI: 10.3892/mmr.2021.11931] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 12/10/2020] [Indexed: 12/21/2022] Open
Abstract
Ginsenoside Rg1 (Rg1) is traditional Chinese medicine with neuroprotective activity. Previous studies have demonstrated that Rg1 improves Alzheimer's disease (AD) and alters gut microbiology, but its mechanism remains to be elucidated, and thus far, its use in the treatment of AD has not been satisfactory. The present study investigated the improvement effects of Rg1 and its association with the microbiota of the large intestine. Following treatment with Rg1 in AD tree shrews, the treatment group demonstrated significantly shorter escape latency and crossed a platform more frequently in a water maze test. Western blotting demonstrated that Rg1 inhibited the expression of β-secretase 1, while increasing microtubule-associated protein 2 and Fox-3 in the hippocampus. Immunohistochemical analysis revealed that Rg1 decreased the expression of amyloid β, tau phosphorylated at serine 404 and pro-apoptotic factor Bax, while increasing the expression of Bcl-2 in the hippocampus and cortex. High throughput sequencing of 16S rRNA demonstrated that Rg1 altered the microbiota abundance of the large intestine. In conclusion, Rg1 affected the expression of apoptosis proteins, possessed a neuroprotective effect and may have a close association with the microbiota of large intestine by significantly reducing the abundance of Bacteroidetes and increasing the energy requirement of tree shrews.
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Affiliation(s)
- Yuqian Guo
- Department of Laboratory Animal Science, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
| | - Limei Wang
- Department of Laboratory Animal Science, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
| | - Jiangli Lu
- Department of Laboratory Animal Science, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
| | - Jianlin Jiao
- Technology Transfer Center, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
| | - Yi Yang
- Department of Laboratory Animal Science, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
| | - Hongbin Zhao
- Department of Emergency Medicine, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650031, P.R. China
| | - Zhang Liang
- Research Management Office for Science and Technology, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
| | - Hong Zheng
- Department of Laboratory Animal Science, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
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20
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Wang L, Lu J, Zeng Y, Guo Y, Wu C, Zhao H, Zheng H, Jiao J. Improving Alzheimer's disease by altering gut microbiota in tree shrews with ginsenoside Rg1. FEMS Microbiol Lett 2021; 367:5708937. [PMID: 31950993 DOI: 10.1093/femsle/fnaa011] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 01/16/2020] [Indexed: 12/13/2022] Open
Abstract
Ginsenoside Rg1 (GRg1) has neuroprotective effects on Alzheimer's disease (AD). The occurrence and progression of AD are closely related to gut microbiota. Few studies have learned the direct relationship between GRg1 and gut microbiota. In this study, we found an original way to research this relationship by using GRg1 in the AD model of tree shrews. Morris water maze and immunohistochemistry were performed to test the cognition repairing function of GRg1 by tree shrews and 16S ribosomal RNA sequencing was used to explore the composition and abundance of gut microbiota. After GRg1 treatment, the result of Morris water maze showed an improvement in cognitive function, and immunohistochemistry revealed a decrease in tau protein. Moreover, 16SrRNA sequencing results showed the abundances of Proteobacteria and Verrucomicrobia were significantly different, and Lactobacillaceae was significantly increased in the GRg1 treatment group. It also showed that the gut microbiome with middle and high doses of GRg1 was close to the normal group. In conclusion, this study suggests that GRg1 at middle and high doses may change the abundance of gut microbiota to improve AD, and thatProteobacteria and Verrucomicrobia are key microbiota. This is the first report that has ever studied the relationship between GRg1 and gut microbiota in tree shrews.
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Affiliation(s)
- Limei Wang
- Deparment of Laboratory Animal Science, Kunming Medical University, Kunming, Yunnan, China
| | - Jiangli Lu
- Deparment of Laboratory Animal Science, Kunming Medical University, Kunming, Yunnan, China
| | - Yueqin Zeng
- Institute of Molecular Clinical Medicine, Kunming Medical Univercity, Kunming, Yunnan, China
| | - Yuqian Guo
- Deparment of Laboratory Animal Science, Kunming Medical University, Kunming, Yunnan, China
| | - Chao Wu
- Deparment of Laboratory Animal Science, Kunming Medical University, Kunming, Yunnan, China
| | - Hongbin Zhao
- Department of Emergency Medicine, the First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Hong Zheng
- Deparment of Laboratory Animal Science, Kunming Medical University, Kunming, Yunnan, China
| | - Jianlin Jiao
- Technology Transfer Center, Kunming Medical University, Kunming, Yunnan, China
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Wu W, He X, Xie S, Li B, Chen J, Qu Y, Li B, Lei M, Liu X. Protective effects of Huang-Lian-Jie-Du-Tang against A β25-35-induced memory deficits and oxidative stress in rats. J Int Med Res 2021; 48:300060519893859. [PMID: 32223685 PMCID: PMC7133406 DOI: 10.1177/0300060519893859] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Objective Huang-Lian-Jie-Du-Tang (HLJDT), a traditional Chinese medicine, improves cognitive ability in rat models of Alzheimer’s disease (AD). The objective of this study was to evaluate the protective effects of HLJDT on learning and memory impairment that are caused by Aβ25–35. Methods Rats were randomly assigned to the following groups: control (water), Aβ25–35, donepezil hydrochloride 1.05 mg/kg, HLJDT 6 g/kg, HLJDT 3 g/kg, and HLJDT 1.5 g/kg and the corresponding drugs were administered for 28 days by oral gavage. HLJDT for the prevention of Aβ25–35-induced injury in rats and the underlying mechanisms were assessed. Aβ25–35 and amyloid precursor protein (APP) levels were measured in the hippocampal specimens. Total superoxide dismutase (T-SOD), glutathione (GSH), and malondialdehyde (MDA) levels in the hippocampus were also measured. The ultrastructure of CA1 hippocampal region was observed using electron microscopy. Results HLJDT treatment ameliorated impaired learning and memory significantly, decreased Aβ25–35, and APP levels in the hippocampus, increased T-SOD and GSH activity and decreased the MDA concentration, and alleviated the nuclear and cytoplasmic abnormalities of the hippocampal CA 1 region that were induced by Aβ25–35 injection. Conclusions HLJDT might decrease hippocampal vulnerability to Aβ25–35, suggesting its potential neuroprotective effect in AD.
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Affiliation(s)
- Wenbin Wu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Xiaojing He
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Shuling Xie
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Bin Li
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Jinxin Chen
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Yanqin Qu
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Baiyang Li
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Ming Lei
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Xuehui Liu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
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Liu H, Lu X, Hu Y, Fan X. Chemical constituents of Panax ginseng and Panax notoginseng explain why they differ in therapeutic efficacy. Pharmacol Res 2020; 161:105263. [PMID: 33127555 DOI: 10.1016/j.phrs.2020.105263] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 10/15/2020] [Accepted: 10/18/2020] [Indexed: 02/06/2023]
Abstract
Panax ginseng (Meyer) and Panax notoginseng (Burkill), belonging to the family Araliaceae, are used worldwide as medicinal and functional herbs. Numerous publications over the past decades have revealed that both P. notoginseng and P. ginseng contain important bioactive ingredients such as ginsenosides and exert multiple pharmacological effects on nervous system and immune diseases. However, based on traditional Chinese medicine (TCM) theory, their applications clearly differ as ginseng reinforces vital energy and notoginseng promotes blood circulation. In this article, we review the similarities and differences between ginseng and notoginseng in terms of their chemical composition and pharmacological effects. Their chemical comparisons indicate that ginseng contains more polysaccharides and amino acids, while notoginseng has more saponins, volatile oil, and polyacetylenes. Regarding pharmacological effects, ginseng exhibits better protective effects on cardiovascular disease, nerve disease, cancer, and diabetes mellitus, whereas notoginseng displays a superior protective effect on cerebrovascular disease. The evidence presented in this review facilitates further research and clinical applications of these two herbs, and exploration of the relationship between the chemical components and disease efficacy may be the critical next step.
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Affiliation(s)
- Hanbing Liu
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Xiaoyan Lu
- Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yang Hu
- Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xiaohui Fan
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China.
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Tao Q, Wang X, Liu L, Ji Y, Luo Q, Du J, Yu L, Shen J, Chu D. Toxoplasma gondii Chinese I genotype Wh6 strain infection induces tau phosphorylation via activating GSK3β and causes hippocampal neuron apoptosis. Acta Trop 2020; 210:105560. [PMID: 32492398 DOI: 10.1016/j.actatropica.2020.105560] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 04/10/2020] [Accepted: 05/24/2020] [Indexed: 11/30/2022]
Abstract
Toxoplasma gondii (T. gondii) is a neurophilic and intracellular parasite that can affect plenty of vertebrate animals, including humans. Recent researches indicate that T. gondii infection is associated with neurodegenerative diseases such as Alzheimer's disease(AD). In addition, tau hyper-phosphorylation is a crucial event leading to the formation of nerve fiber tangles in AD. Despite the efforts to understand the interactions between T. gondii and AD, there are no clear results available so far. Here, we infected mice with the T. gondii of the Chinese 1 genotype Wh6 strain (TgCtwh6) for 60 days. Then we observed the formation of tissue cysts in the brain, the damage of neuron and the increased expression of phosphorylated tau (p-tau) in the hippocampal tissue of the mice. Similarly, we also found that p-tau, glycogen synthase kinase 3 beta (GSK3β), and phosphorylated GSK3β (p-GSK3β) were upregulated in vitro in TgCtwh6 challenged hippocampal neuron cell strain, HT22 cells. We noted a down-regulated expression of GSK3β,p-GSK3β, and p-tau in HT22 cells, which were pretreated with LiCl, an inhibitor of GSK3β. These data suggested that p-GSK3β may mediate tau phosphorylation after TgCtwh6 infection. Furthermore, TgCtwh6 infection also caused the increased expression of Bax and Caspase3, the decreased expression of Bcl-XL in HT22 cells, which had both early and late apoptosis. In all, our results indicated that TgCtwh6 infection not only led to phosphorylation of tau via activating GSK3β but also promoted hippocampal neuron apoptosis. Our research may partially reveal the mechanism with which TgCtwh6 induce neurofibrillary pathology.
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Affiliation(s)
- Qing Tao
- Anhui Provincial Laboratory of Microbiology and Parasitology, Anhui Medical University, Hefei, China
| | - Xianhe Wang
- Department of Pediatrics, First Affiliated Hospital of Anhui Medical University, Heifei, China
| | - Lei Liu
- Department of Parasitology, Medical College of Soochow University, Suzhou, China
| | - Yongsheng Ji
- Anhui Provincial Laboratory of Microbiology and Parasitology, Anhui Medical University, Hefei, China
| | - Qingli Luo
- Anhui Provincial Laboratory of Microbiology and Parasitology, Anhui Medical University, Hefei, China
| | - Jian Du
- Anhui Provincial Laboratory of Microbiology and Parasitology, Anhui Medical University, Hefei, China
| | - Li Yu
- Anhui Provincial Laboratory of Microbiology and Parasitology, Anhui Medical University, Hefei, China
| | - Jilong Shen
- Anhui Provincial Laboratory of Zoonoses of High Institutions, Anhui Medical University, Hefei, China
| | - Deyong Chu
- Anhui Provincial Laboratory of Microbiology and Parasitology, Anhui Medical University, Hefei, China.
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☆Protective effects of ginseng on memory and learning and prevention of hippocampal oxidative damage in streptozotocin-induced Alzheimer's in a rat model. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.npbr.2020.08.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Yao YY, Ling EA, Lu D. Microglia mediated neuroinflammation - signaling regulation and therapeutic considerations with special reference to some natural compounds. Histol Histopathol 2020; 35:1229-1250. [PMID: 32662061 DOI: 10.14670/hh-18-239] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Neuroinflammation plays a central role in multiple neurodegenerative diseases and neurological disorders such as Alzheimer's disease (AD), Parkinson's disease (PD), cerebral ischemic injury etc. In this connection, microglia, the key players in the central nervous system, mediate the inflammatory response process. In brain injuries, activated microglia can clear the cellular debris and invading pathogens and release neurotrophic factors; however, prolonged microglia activation may cause neuronal death through excessive release of inflammatory mediators. Therefore, it is of paramount importance to understand the underlying molecular mechanisms of microglia activation to design an effective therapeutic strategy to alleviate neuronal injury. Recent studies have shown that some natural compounds and herbal extracts possess anti-inflammatory properties that may suppress microglial activation and ameliorate neuroinflammation and hence are neuroprotective. In this review, we will update some of the common signaling pathways that regulate microglia activation. Among the various signaling pathways, the Notch-1, mitogen-activated protein kinases (MAPKs), and nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) have been reported to exacerbate microglia mediated neuroinflammation that is implicated in different neuropathological diseases. The search for natural compounds or agents, specifically those derived from natural herbal extracts such as Gastrodin, scutellarin, RG1 etc. has been the focus of many of our recent studies because they have been found to regulate microglia activation. The pharmacological effects of these agents and their potential mechanisms for regulating microglia activation are systematically reviewed here for a fuller understanding of their biochemical action and therapeutic potential for treatment of microglia mediated neuropathological diseases.
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Affiliation(s)
- Yue-Yi Yao
- Technology Transfer Center, Kunming Medical University, Kunming, China
| | - Eng-Ang Ling
- Department of Anatomy, Young Loo Lin School of Medicine, National University of Singapore, Singapore.
| | - Di Lu
- Technology Transfer Center, Kunming Medical University, Kunming, China.
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Bocharova OA, Karpova RV, Bocharov EV, Vershinskaya AA, Baryshnikova MA, Kazeev IV, Kucheryanu VG, Kiselevskiy MV. PHYTOADAPTOGENS IN THE TUMOURS BIOTHERAPY AND GERIATRICS (PART 1). ACTA ACUST UNITED AC 2020. [DOI: 10.17650/1726-9784-2019-19-2-13-21] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The review reflects the history of phytoadaptogens studies (ginseng, eleutherococcus, etc.), which are considered to be geroprotectors by Eastern medicine for centures. They have a complex of protective effects on the body, as well as increasing its antitumor resistance. The first part of the review describes the antistress, immuno- and hormone-modulating, cognitive and neuroprotective properties of adapto gens. Together with the synchronizing effects on biorthms adaptogens are essential for preventive oncology.
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Affiliation(s)
- O. A. Bocharova
- N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health of the Russian Federation
| | - R. V. Karpova
- N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health of the Russian Federation
| | - E. V. Bocharov
- N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health of the Russian Federation
| | - A. A. Vershinskaya
- N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health of the Russian Federation
| | - M. A. Baryshnikova
- N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health of the Russian Federation
| | - I. V. Kazeev
- N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health of the Russian Federation
| | | | - M. V. Kiselevskiy
- N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health of the Russian Federation
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Ginsenoside Rg1 fails to rescue PTSD-like behaviors in a mice model of single-prolonged stress. Biochem Biophys Res Commun 2020; 528:243-248. [PMID: 32482388 DOI: 10.1016/j.bbrc.2020.05.159] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 05/21/2020] [Indexed: 11/22/2022]
Abstract
Previous studies reported that ginsenoside Rg1 (Rg1) exerts antidepressant-like effect in animal models of depression. However, its effect on post-traumatic stress disorder (PTSD) remains elusive; PTSD is a common and costly psychiatric condition with negative cognitive and affective dysfunctions, such as anxiety and depression. In this study, we evaluated the role of Rg1 in a validated mice model of PTSD induced by single-prolonged stress (SPS). Sertraline, one of the FDA-approved medications for PTSD was used as a positive control. Our results showed that SPS exposure led to increased anxiety-like and despair-like behaviors. SPS exposure also caused enhanced contextual fear memory and overgeneralization of learned fear. Sertraline significantly ameliorated those abnormal behaviors induced by SPS, while Rg1 did not. Meanwhile, we found that sertraline but not Rg1 blocked the suppressive effect of SPS on adult neurogenesis in the hippocampus. Consistently, we found that SPS elevated adrenocorticotropic hormone (ACTH) level in the serum, which was inhibited by sertraline but not Rg1. Our results thus demonstrate that Rg1 at a dose used to treat depression may not be effective to rescue behavioral deficits associated with PTSD.
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Huang L, Peng Z, Lu C, Chen Y, Lv JW, Qin M, Liao DF, Liu XM, Shi Z. Ginsenoside Rg1 alleviates repeated alcohol exposure-induced psychomotor and cognitive deficits. Chin Med 2020; 15:44. [PMID: 32411290 PMCID: PMC7206760 DOI: 10.1186/s13020-020-00325-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Accepted: 04/28/2020] [Indexed: 12/25/2022] Open
Abstract
Background Chronic alcohol consumption disrupts psychomotor and cognitive functions, most of which are subserved by the dysfunction of hippocampus. Dysregulated excitatory glutamatergic transmission is implicated in repeated alcohol induced psychomotor and cognitive impairment. Ginsenoside Rg1, one of the main active ingredient of the traditional tonic medicine Panax ginseng C.A. Meyer (Araliaceae), has been used to treat cognitive deficits. Particularly, Rg1 has been demonstrated to improve hippocampus-dependent learning in mice and attenuate glutamate-induced excitotoxicity in vitro. Thus, in the present research, we sought to investigate the therapeutic effects of Ginsenoside Rg1 on repeated alcohol induced psychomotor and cognitive deficits in hippocampal-dependent behavioral tasks and unravel the underpinnings of its neuroprotection. Methods Male ICR (CD-1) mice were consecutively intragastrically treated with 20% (w/v) alcohol for 21 days. Then, behavior tests were conducted to evaluate repeated alcohol induced psychomotor and cognitive deficits. Histopathological changes, and biochemical and molecular alterations were assessed to determine the potential neuroprotective mechanism of Rg1. Results The results suggested that Rg1, at the optimal dose of 6 mg/kg, has the potential to ameliorate repeated alcohol induced cognitive deficits by regulating activities of NR2B containing NMDARs and excitotoxic signaling. Conclusion Our findings further provided a new strategy to treat chronic alcohol exposure induced adverse consequences.
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Affiliation(s)
- Lu Huang
- 1Division of Stem Cell Regulation and Application, Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, Hunan University of Chinese Medicine, Changsha, 410208 Hunan China.,2Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, 510632 China
| | - Zhuang Peng
- 1Division of Stem Cell Regulation and Application, Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, Hunan University of Chinese Medicine, Changsha, 410208 Hunan China.,5College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029 China
| | - Cong Lu
- 3Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193 China
| | - Ying Chen
- 4Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700 China
| | - Jing-Wei Lv
- 3Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193 China
| | - Meng Qin
- 5College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029 China
| | - Duan-Fang Liao
- 1Division of Stem Cell Regulation and Application, Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, Hunan University of Chinese Medicine, Changsha, 410208 Hunan China
| | - Xin-Min Liu
- 1Division of Stem Cell Regulation and Application, Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, Hunan University of Chinese Medicine, Changsha, 410208 Hunan China.,3Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193 China
| | - Zhe Shi
- 1Division of Stem Cell Regulation and Application, Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, Hunan University of Chinese Medicine, Changsha, 410208 Hunan China
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Ginsenoside Rg1 attenuates chronic unpredictable mild stress-induced depressive-like effect via regulating NF-κB/NLRP3 pathway in rats. Neuroreport 2020; 30:893-900. [PMID: 31373969 DOI: 10.1097/wnr.0000000000001302] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Ginsenoside (GS Rg1), which has neuroprotection and anti-inflammation activities, is the main active ingredient of Radix Ginseng. However, its antidepressant-like effect in rats remains unclear. Our study was conducted to investigate whether GS Rg1 confers an antidepressant effect in rats exposed to a chronic unpredictable mild stress model of depression and to explore its possible mechanisms. Our results revealed that GS Rg1 treatments for 3 weeks alleviated the depression-related behaviors of chronic unpredictable mild stress-exposed rats, as indicated by increasing sucrose preference, improving locomotor activity and shortening immobile time in both the forced swimming tests and tail suspension tests. And these ameliorative effects of GS Rg1 treatment were involved with regulating chronic unpredictable mild stress-induced pro-inflammatory cytokine interleukin beta (IL-1β) related neuro-inflammation. In addition, we further found that GS Rg1 reversed chronic unpredictable mild stress-induced IL-1β elevation, possibly by inhibiting nuclear factor kappa B pathway activation and regulating nucleotide binding and oligomerization domain-like receptor family pyrin domain-containing 3 inflammasome expression. In short, our results suggested that GS Rg1 exerted a potential antidepressant-like effect in chronic unpredictable mild stress rat model of depression, which may provide an insight into the potential of GS Rg1 in therapeutic implications for depression.
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Ginsenoside-Rg1 Rescues Stress-Induced Depression-Like Behaviors via Suppression of Oxidative Stress and Neural Inflammation in Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:2325391. [PMID: 32273940 PMCID: PMC7125461 DOI: 10.1155/2020/2325391] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 02/10/2020] [Accepted: 03/05/2020] [Indexed: 12/12/2022]
Abstract
Depression is an inflammatory-related condition, with the progression in neuronal damage resulting in major depression disorder. Ginsenoside-Rg1, a sterol extract from the herb Panax ginseng, has been shown to exert neuroprotective effects upon neurodegeneration disorders. However, whether ginsenoside-Rg1 confers antidepressant-like effects on neuroinflammation as associated with depression, as well as the possible mechanism involved in these neuroprotective effects, is currently unclear. In the present report, we show that treatment with ginsenoside-Rg1 (40 mg/kg, i.p.) significantly ameliorated depressive-like behaviors as induced by chronic unpredictable mild stress (CUMS) in a rat model of depression. Moreover, these CUMS rats treated with ginsenoside-Rg1 showed reductions in the levels of the oxidative stress products and the activity in the antioxidant stress kinase. Furthermore, CUMS rats treated with ginsenoside-Rg1 showed ameliorated neuroinflammation and associated neuronal apoptosis along with a reduction in dendritic spine atrophy and display of depressive behaviors. Taken together, the results of this study suggest that ginsenoside-Rg1 produces antidepressant-like effects in CUMS-exposed rats; and one of the mechanisms for these antidepressant-like effects of ginsenoside-Rg1 appears to involve protection against oxidative stress and thus the neuronal deterioration resulting from inflammatory responses. These findings provide evidence for the therapeutic potential of ginsenoside-Rg1 in the treatment of stress-related depression.
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Zhao Y, Zhang Y, Zhang J, Zhang X, Yang G. Molecular Mechanism of Autophagy: Its Role in the Therapy of Alzheimer's Disease. Curr Neuropharmacol 2020; 18:720-739. [PMID: 31934838 PMCID: PMC7536828 DOI: 10.2174/1570159x18666200114163636] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 11/04/2019] [Accepted: 01/11/2020] [Indexed: 12/12/2022] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder of progressive dementia that is characterized by the accumulation of beta-amyloid (Aβ)-containing neuritic plaques and intracellular Tau protein tangles. This distinctive pathology indicates that the protein quality control is compromised in AD. Autophagy functions as a "neuronal housekeeper" that eliminates aberrant protein aggregates by wrapping then into autophagosomes and delivering them to lysosomes for degradation. Several studies have suggested that autophagy deficits in autophagy participate in the accumulation and propagation of misfolded proteins (including Aβ and Tau). In this review, we summarize current knowledge of autophagy in the pathogenesis of AD, as well as some pathways targeting the restoration of autophagy. Moreover, we discuss how these aspects can contribute to the development of disease-modifying therapies in AD.
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Affiliation(s)
| | | | | | | | - Guofeng Yang
- Address correspondence to this author at the Department of Geriatrics, Second Hospital of Hebei Medical University, 215 Hepingxi Road, Shijiazhuang, 050000, China; Tel: +86-311-66636243; E-mail:
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Dubey T, Chinnathambi S. Brahmi (Bacopa monnieri): An ayurvedic herb against the Alzheimer's disease. Arch Biochem Biophys 2019; 676:108153. [PMID: 31622587 DOI: 10.1016/j.abb.2019.108153] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 10/08/2019] [Accepted: 10/11/2019] [Indexed: 01/16/2023]
Abstract
Ayurveda is the medicinal science, dealing with utilization of naturally available plant products for treatment. A wide variety of neuroprotective herbs have been reported in Ayurveda. Brahmi, Bacopa monnieri is a nootropic ayurvedic herb known to be effective in neurological disorders from ancient times. Numerous approaches including natural and synthetic compounds have been applied against Alzheimer's disease. Amyloid-β and Tau are the hallmarks proteins of several neuronal dysfunctions resulting in Alzheimer's disease. Tau is a microtubule-associated protein known to be involved in progression of Alzheimer's disease. The generation of reaction oxygen species, increased neuroinflammation and neurotoxicity are the major physiological dysfunctions associated with Tau aggregates, which leads to dementia and behavioural deficits. Bacoside A, Bacoside B, Bacosaponins, Betulinic acid, etc; are the bioactive component of Brahmi belonging to various chemical families. Each chemical component known have its significant role in neuroprotection. The neuroprotective properties of Brahmi and its bioactive components including reduction of ROS, neuroinflammation, aggregation inhibition of Amyloid-β and improvement of cognitive and learning behaviour. Here on basis of earlier studies we hypothesize the inhibitory role of Brahmi against Tau-mediated toxicity. The overall studies have concluded that Brahmi can be used as a lead formulation for treatment of Alzheimer's disease and other neurological disorders.
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Affiliation(s)
- Tushar Dubey
- Neurobiology Group, Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, 411008, Pune, India; Academy of Scientific and Innovative Research (AcSIR), 411008, Pune, India
| | - Subashchandrabose Chinnathambi
- Neurobiology Group, Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, 411008, Pune, India; Academy of Scientific and Innovative Research (AcSIR), 411008, Pune, India.
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Ying Y, Zhang YL, Ma CJ, Li MQ, Tang CY, Yang YF, Zeng JH, Huang XY, Yi J, Wang XM, He ZD, Shu XS. Neuroprotective Effects of Ginsenoside Rg1 against Hyperphosphorylated Tau-Induced Diabetic Retinal Neurodegeneration via Activation of IRS-1/Akt/GSK3β Signaling. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:8348-8360. [PMID: 31304751 DOI: 10.1021/acs.jafc.9b02954] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We have recently demonstrated that tau hyperphosphorylation causes diabetic synaptic neurodegeneration of retinal ganglion cells (RGCs), which might be the earliest affair during the pathogenesis of diabetic retinopathy (DR). Thus, there is a pressing need to seek therapeutic agents possessing neuroprotective effects against tau hyperphosphorylation in RGCs for arresting the progression of DR. Here, using a well-characterized diabetes model of db/db mouse, we discovered that topical ocular application of 10 mg/kg/day of ginsenoside Rg1 (GRg1), one of the major active ingredients extracted from Panax ginseng and Panax notoginseng, ameliorated hyperphosphorylated tau-triggered RGCs synaptic neurodegeneration in diabetic mice. The neuroprotective effects of GRg1 on diabetic retinae were abrogated when retinal IRS-1 or Akt was suppressed by intravitreal injection with si-IRS-1 or topically coadministered with a specific inhibitor of Akt, respectively. However, selective repression of retinal GSK3β by intravitreal administration of si-GSK3β rescued the neuroprotective properties of GRg1 when Akt was inactivated. Therefore, the present study showed for the first time that GRg1 can prevent hyperphosphorylated tau-induced synaptic neurodegeneration of RGCs via activation of IRS-1/Akt/GSK3β signaling in the early phase of DR. Moreover, our data clarify the potential therapeutic significance of GRg1 for neuroprotective intervention strategies of DR.
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Affiliation(s)
- Ying Ying
- Center for Diabetes, Obesity and Metabolism, Department of Physiology, School of Basic Medical Sciences , Shenzhen University Health Sciences Center , Shenzhen , Guangdong 518060 , China
| | - Yi-Lin Zhang
- Center for Diabetes, Obesity and Metabolism, Department of Physiology, School of Basic Medical Sciences , Shenzhen University Health Sciences Center , Shenzhen , Guangdong 518060 , China
| | - Can-Jie Ma
- Center for Diabetes, Obesity and Metabolism, Department of Physiology, School of Basic Medical Sciences , Shenzhen University Health Sciences Center , Shenzhen , Guangdong 518060 , China
| | - Mei-Qi Li
- Center for Diabetes, Obesity and Metabolism, Department of Physiology, School of Basic Medical Sciences , Shenzhen University Health Sciences Center , Shenzhen , Guangdong 518060 , China
| | - Chao-Yue Tang
- Center for Diabetes, Obesity and Metabolism, Department of Physiology, School of Basic Medical Sciences , Shenzhen University Health Sciences Center , Shenzhen , Guangdong 518060 , China
| | - Yang-Fan Yang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center , Sun Yat-Sen University , Guangzhou , Guangdong 510064 , China
| | - Jun-Hui Zeng
- Center for Diabetes, Obesity and Metabolism, Department of Physiology, School of Basic Medical Sciences , Shenzhen University Health Sciences Center , Shenzhen , Guangdong 518060 , China
| | - Xiao-Yan Huang
- Center for Diabetes, Obesity and Metabolism, Department of Physiology, School of Basic Medical Sciences , Shenzhen University Health Sciences Center , Shenzhen , Guangdong 518060 , China
| | - Junbo Yi
- Instrumental Analysis Center of Shenzhen University , Xili Campus, Shenzhen University , Shenzhen 518060 , China
| | - Xiao-Mei Wang
- Center for Diabetes, Obesity and Metabolism, Department of Physiology, School of Basic Medical Sciences , Shenzhen University Health Sciences Center , Shenzhen , Guangdong 518060 , China
| | - Zhen-Dan He
- Department of Pharmacy, School of Medicine , Shenzhen University , Shenzhen 518060 , China
| | - Xing-Sheng Shu
- Center for Diabetes, Obesity and Metabolism, Department of Physiology, School of Basic Medical Sciences , Shenzhen University Health Sciences Center , Shenzhen , Guangdong 518060 , China
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Li G, Zhang N, Geng F, Liu G, Liu B, Lei X, Li G, Chen X. High-throughput metabolomics and ingenuity pathway approach reveals the pharmacological effect and targets of Ginsenoside Rg1 in Alzheimer's disease mice. Sci Rep 2019; 9:7040. [PMID: 31065079 PMCID: PMC6504884 DOI: 10.1038/s41598-019-43537-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 04/23/2019] [Indexed: 01/23/2023] Open
Abstract
Ginsenoside Rg1, a natural triterpenoid saponins compound isolated from the Panax species, has been found to possess neuroprotective properties in neurodegenerative diseases such as Alzheimer's disease (AD). However, its pharmacological mechanism on AD has not been studied. In this study, an ultra-performance liquid chromatography combined with quadrupole time of-flight mass spectrometry (UPLC-Q/TOF-MS) based non-targeted metabolomics strategy was performed to explore the mechanism of Ginsenoside Rg1 protecting against AD mice by characterizing metabolic biomarkers and regulation pathways changes. A total of nineteen potential metabolites in serum were discovered and identified to manifest the difference between wild-type mice and triple transgenic mice in control and model group, respectively. Fourteen potential metabolites involved in ten metabolic pathways such as linoleic acid metabolism, arachidonic acid metabolism, tryptophan metabolism and sphingolipid metabolism were affected by Rg1. From the ingenuity pathway analysis (IPA) platform, the relationship between gene, protein, metabolites alteration and protective activity of ginsenoside Rg1 in AD mice are deeply resolved, which refers to increased level of albumin, amino acid metabolism and molecular transport. In addition, quantitative analysis of key enzymes in the disturbed pathways by proteomics parallel reaction was employed to verify changed metabolic pathway under Ginsenoside Rg1. The UPLC-Q/TOF-MS based serum metabolomics method brings about new insights into the pharmacodynamic studies of Ginsenoside Rg1 on AD mice.
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Affiliation(s)
- Ge Li
- Yunnan Branch, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Xuanwei Avenue 138, Jinghong City, 666100, Yunnan Province, China
| | - Ning Zhang
- College of Jiamusi, Heilongjiang University of Chinese Medicine, Jiamusi, Guanghua Street 39, Qianjin District, Jiamusi City, 154007, Heilongjiang Province, China
| | - Fang Geng
- College of Chemistry & Chemical Engineering, Harbin Normal University, Shida Road No. 1, Limin Economic Development Zone, Harbin, 150025, Heilongjiang Province, China
| | - Guoliang Liu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
| | - Bin Liu
- College of Jiamusi, Heilongjiang University of Chinese Medicine, Jiamusi, Guanghua Street 39, Qianjin District, Jiamusi City, 154007, Heilongjiang Province, China
| | - Xia Lei
- College of Jiamusi, Heilongjiang University of Chinese Medicine, Jiamusi, Guanghua Street 39, Qianjin District, Jiamusi City, 154007, Heilongjiang Province, China
| | - Guang Li
- Yunnan Branch, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Xuanwei Avenue 138, Jinghong City, 666100, Yunnan Province, China
| | - Xi Chen
- Yunnan Branch, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Xuanwei Avenue 138, Jinghong City, 666100, Yunnan Province, China.
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China.
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Mullane K, Williams M. Preclinical Models of Alzheimer's Disease: Relevance and Translational Validity. ACTA ACUST UNITED AC 2019; 84:e57. [PMID: 30802363 DOI: 10.1002/cpph.57] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The only drugs currently approved for the treatment of Alzheimer's Disease (AD) are four acetylcholinesterase inhibitors and the NMDA antagonist memantine. Apart from these drugs, which have minimal to no clinical benefit, the 40-year search for effective therapeutics to treat AD has resulted in a clinical failure rate of 100% not only for compounds that prevent brain amyloid deposition or remove existing amyloid plaques but also those acting by a variety of other putative disease-associated mechanisms. This indicates that the preclinical data generated from current AD targets to support the selection, optimization, and translation of new chemical entities (NCEs) and biologics to clinical trials is seriously compromised. While many of these failures reflect flawed hypotheses or a lack of adequate characterization of the preclinical pharmacodynamic and pharmacokinetic (PD/PK) properties of lead NCEs-including their bioavailability and toxicity-the conceptualization, validation, and interrogation of the current animal models of AD represent key limitations. The overwhelming majority of these AD models are transgenic, based on aspects of the amyloid hypothesis and the genetics of the familial form of the disease. As a result, these generally lack construct and predictive validity for the sporadic form of the human disease. The 170 or so transgenic models, perhaps the largest number ever focused on a single disease, use rodents, mainly mice, and in addition to amyloid also address aspects of tau causality with more complex multigene models including other presumed causative factors together with amyloid. This overview discusses the current animal models of AD in the context of both the controversies surrounding the causative role of amyloid in the disease and the need to develop validated models of cognitive function/dysfunction that more appropriately reflect the phenotype(s) of human aged-related dementias. © 2019 by John Wiley & Sons, Inc.
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Affiliation(s)
| | - Michael Williams
- Department of Biological Chemistry and Pharmacology, College of Medicine, Ohio State University, Columbus, Ohio
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Razgonova MP, Veselov VV, Zakharenko AM, Golokhvast KS, Nosyrev AE, Cravotto G, Tsatsakis A, Spandidos DA. Panax ginseng components and the pathogenesis of Alzheimer's disease (Review). Mol Med Rep 2019; 19:2975-2998. [PMID: 30816465 PMCID: PMC6423617 DOI: 10.3892/mmr.2019.9972] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 02/15/2019] [Indexed: 12/02/2022] Open
Abstract
Ginseng is one of the main representatives of traditional Chinese medicine and presents a wide range of pharmacological actions. Ginsenosides are the main class of active compounds found in ginseng. They demonstrate unique biological activity and medicinal value, namely anti-tumour, anti-inflammatory and antioxidant properties, as well as anti-apoptotic properties. Increasing levels of stress in life are responsible for the increased incidence of nervous system diseases. Neurological diseases create a huge burden on the lives and health of individuals. In recent years, studies have indicated that ginsenosides play a pronounced positive role in the prevention and treatment of neurological diseases. Nevertheless, research is still at an early stage of development, and the complex mechanisms of action involved remain largely unknown. This review aimed to shed light into what is currently known about the mechanisms of action of ginsenosides in relation to Alzheimer's disease. Scientific material and theoretical bases for the treatment of nervous system diseases with purified Panax ginseng extracts are also discussed.
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Affiliation(s)
| | - Valery Vyacheslavovich Veselov
- Center of Bioanalytical Investigation and Molecular Design, I.M. Sechenov First Moscow State Medical University, Moscow 119048, Russia
| | | | | | - Alexander Evgenyevich Nosyrev
- Center of Bioanalytical Investigation and Molecular Design, I.M. Sechenov First Moscow State Medical University, Moscow 119048, Russia
| | - Giancarlo Cravotto
- Department of Drug Science and Technology, University of Turin, Turin 10125, Italy
| | - Aristidis Tsatsakis
- Department of Forensic Sciences and Toxicology, Faculty of Medicine, University of Crete, Heraklion 71003, Greece
| | - Demetrios A Spandidos
- Laboratory of Clinical Virology, Medical School, University of Crete, Heraklion 71003, Greece
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Ginsenoside Rg1 Prevents Chemotherapy-Induced Cognitive Impairment: Associations with Microglia-Mediated Cytokines, Neuroinflammation, and Neuroplasticity. Mol Neurobiol 2019; 56:5626-5642. [DOI: 10.1007/s12035-019-1474-9] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 01/10/2019] [Indexed: 12/26/2022]
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Cannabinoid type 2 receptor agonist JWH-133, attenuates Okadaic acid induced spatial memory impairment and neurodegeneration in rats. Life Sci 2019; 217:25-33. [DOI: 10.1016/j.lfs.2018.11.058] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 11/14/2018] [Accepted: 11/27/2018] [Indexed: 11/24/2022]
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Fan C, Song Q, Wang P, Li Y, Yang M, Yu SY. Neuroprotective Effects of Ginsenoside-Rg1 Against Depression-Like Behaviors via Suppressing Glial Activation, Synaptic Deficits, and Neuronal Apoptosis in Rats. Front Immunol 2018; 9:2889. [PMID: 30581440 PMCID: PMC6292928 DOI: 10.3389/fimmu.2018.02889] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 11/26/2018] [Indexed: 12/16/2022] Open
Abstract
Depression is considered a neuropsychiatric disease associated with various neuronal changes within specific brain regions. We previously reported that ginsenoside-Rg1, a potential neuroprotective agent extracted from ginseng, significantly alleviated depressive-like disorders induced by chronic stress in rats. However, the mechanisms by which ginsenoside-Rg1 exerts its neuroprotective effects in depression remain largely uncharacterized. In the present study we confirm that ginsenoside-Rg1 significantly prevented the antidepressant-like effects in a rat model of chronic unpredictable mild stress (CUMS) and report on some of the underlying mechanisms associated with this effect. Specifically, we found that chronic pretreatment with ginsenoside-Rg1 prior to stress exposure significantly suppressed inflammatory pathway activity via alleviating the overexpression of proinflammatory cytokines and the activation of microglia and astrocytes. These effects were accompanied with an attenuation of dendritic spine and synaptic deficits as associated with an upregulation of synaptic-related proteins in the ventral medial prefrontal cortex (vmPFC). In addition, ginsenoside-Rg1 inhibited neuronal apoptosis induced by CUMS exposure, increased Bcl-2 expression and decreased cleaved Caspase-3 and Caspase-9 expression within the vmPFC region. Furthermore, ginsenoside-Rg1 could increase the nuclear factor erythroid 2-related factor (Nrf2) expression and inhibit p38 mitogen-activated protein kinase (p-p38 MAPK) and nuclear factor κB (NF-κB) p65 subunit activation within the vmPFC. Taken together, these results suggest that the neuroprotective effects of ginsenoside-Rg1, which may assume the antidepressant-like effect in this animal model of depression, appears to result from amelioration of a CUMS-dependent neuronal deterioration within the vmPFC. Moreover, they also provide support for the therapeutic potential of ginsenoside-Rg1 in the treatment of stress-related mental disorders.
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Affiliation(s)
- Cuiqin Fan
- Department of Physiology, Shandong University, School of Basic Medical Sciences, Jinan, China
| | - Qiqi Song
- Department of Physiology, Shandong University, School of Basic Medical Sciences, Jinan, China
| | - Peng Wang
- Department of Physiology, Shandong University, School of Basic Medical Sciences, Jinan, China
| | - Ye Li
- Department of Physiology, Shandong University, School of Basic Medical Sciences, Jinan, China
| | - Mu Yang
- Department of Physiology, Shandong University, School of Basic Medical Sciences, Jinan, China
| | - Shu Yan Yu
- Department of Physiology, Shandong University, School of Basic Medical Sciences, Jinan, China
- Shandong Provincial Key Laboratory of Mental Disorders, School of Basic Medical Sciences, Jinan, China
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Lin J, Xu Y, Wang Y, Huang S, Li J, Meti MD, Xu X, Hu Z, Liu J, He Z, Xu H. Dissection of binding of trypsin to its natural inhibitor Gensenoside-Rg1 using spectroscopic methods and molecular modeling. J Biomol Struct Dyn 2018; 37:4070-4079. [DOI: 10.1080/07391102.2018.1539411] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Jialiang Lin
- College of Life Sciences and Oceanography, Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen, China
| | - Yang Xu
- College of Life Sciences and Oceanography, Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen, China
- School of Science and Engineering, Chinese University of Hong Kong, Shenzhen, China
| | - Yuhan Wang
- College of Life Sciences and Oceanography, Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen, China
| | - Songyang Huang
- College of Life Sciences and Oceanography, Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen, China
| | - Junwei Li
- College of Life Sciences and Oceanography, Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen, China
| | - Manjunath D. Meti
- College of Life Sciences and Oceanography, Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen, China
| | - Xu Xu
- College of Life Sciences and Oceanography, Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen, China
| | - Zhangli Hu
- College of Life Sciences and Oceanography, Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen, China
| | - Johnson Liu
- School Medical Sciences, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Zhendan He
- School of Medicine, Shenzhen University, Shenzhen, China
| | - Hong Xu
- College of Life Sciences and Oceanography, Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen, China
- Key Laboratory of RF Circuits and Systems of Ministry of Education, Hangzhou Dianzi University, Hangzhou, China
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Yang Y, Liu JP, Fang JY, Wang HC, Wei Y, Cao Y, Liu JG, Liu LT, Li H. Effect and Safety of Huannao Yicong Formula () in Patients with Mild-to-Moderate Alzheimer's Disease: A Randomized, Double-Blinded, Donepezil-Controlled Trial. Chin J Integr Med 2018; 25:574-581. [PMID: 30109588 DOI: 10.1007/s11655-018-3054-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/23/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To assess the effect and safety of Huannao Yicong Formula (, HYF) in the treatment of patients with mild-to-moderate Alzheimer's disease (AD). METHODS Sixty patients with mild-tomoderate AD were evenly randomized into HYF group and donepezil group with the random number method. Patients in the HYF group took 5 g of HYF granules twice daily and 5 mg placebo of donepezil once daily. Patients in the donepezil group took 5 mg donepezil once daily and 5 g placebo of HYF granules twice daily. The intervention lasted for 6 months. Clinical researchers, participants and statisticians were blinded to the treatment assignment throughout the study. The primary outcomes were scores of Alzheimer's Disease Assessment Scale-Cognitive Subscale (ADAS-Cog) and Chinese Medicine Symptom Scale (CM-SS). The secondary outcomes were scores of Montreal Cognitive Assessment (MoCA) test and Mini-Mental State Exam (MMSE). The serum levels of acetylcholinesterase (AchE) and amyloid-β protein 42 (Aβ42) were detected with enzymelinked immunosorbent assay kits. The scale assessments were conducted at baseline, the 3rd and 6th months of treatment, respectively. Biochemistry tests were conducted at baseline and the 6th month of treatment. RESULTS A total of 52 patients completed the trial, 28 in HYF group and 24 in donepezil group. Compared with the baseline, HYF and donepezil signifificantly decreased the total scores of ADAS-Cog and CM-SS, and signifificantly increased the scores of MoCA and MMSE after 6-month treatment (all P<0.01). Both treatments remarkably reduced the serum levels of AchE and Aβ42 (both P<0.05). The CM-SS total effective rate of HYF was signifificantly higher than donepezil [75.00% (21/28) vs. 54.17% (13/24), P<0.05]. No severe adverse events were observed in both groups. CONCLUSION HYF is effective and safe for improving the cognitive function in mildto-moderate AD patients. [Trial registration: Chinese Clinical Trial Registry (Reg No. ChiCTR-IOR-17011746)].
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Affiliation(s)
- Yang Yang
- Graduate School, Beijing University of Chinese Medicine, Beijing, 100029, China.,Department of Geratology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
| | - Jian-Ping Liu
- Centre for Evidence-Based Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Jun-Yan Fang
- Graduate School, Beijing University of Chinese Medicine, Beijing, 100029, China.,Department of Traditional Chinese Medicine, Tongling Hospital of Integrated Traditional Chinese and Western Medicine, Tongling, Anhui Province, 244099, China
| | - Hui-Chan Wang
- Graduate School, Beijing University of Chinese Medicine, Beijing, 100029, China.,Department of Geratology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
| | - Yun Wei
- Department of Geratology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
| | - Yu Cao
- Department of Geratology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
| | - Jian-Gang Liu
- Department of Cardiovascular Diseases, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
| | - Long-Tao Liu
- Department of Cardiovascular Diseases, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
| | - Hao Li
- Department of Geratology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China.
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Dai Y, Zhang Y, Zhao X, Jeon Y, Zheng F, Ma L, Yue H. Identification and Evaluation of a Panel of Ginsenosides from Different Red Ginseng Extracts with Nootropic Effect. Chem Res Chin Univ 2018. [DOI: 10.1007/s40242-018-7422-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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43
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Fan C, Zhu X, Song Q, Wang P, Liu Z, Yu SY. MiR-134 modulates chronic stress-induced structural plasticity and depression-like behaviors via downregulation of Limk1/cofilin signaling in rats. Neuropharmacology 2018; 131:364-376. [PMID: 29329879 DOI: 10.1016/j.neuropharm.2018.01.009] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 01/03/2018] [Accepted: 01/06/2018] [Indexed: 12/21/2022]
Abstract
Increasing evidence has suggested that depression is a neuropsychiatric condition associated with neuroplasticity within specific brain regions. However, the mechanisms by which neuroplasticity exerts its effects in depression remain largely uncharacterized. In the present study we show that chronic stress effectively induces depression-like behaviors in rats, an effect which was associated with structural changes in dendritic spines and synapse abnormalities within neurons of the ventromedial prefrontal cortex (vmPFC). Moreover, unpredictable chronic mild stress (UCMS) exposure significantly increased the expression of miR-134 within the vmPFC, an effect which was paralleled with a decrease in the levels of expression and phosphorylation of the synapse-associated proteins, LIM-domain kinase 1 (Limk1) and cofilin. An intracerebral infusion of the adenovirus associated virus (AAV)-miR-134-sponge into the vmPFC of stressed rats, which blocks mir-134 function, significantly ameliorated neuronal structural abnormalities, biochemical changes and depression-like behaviors. Chronic administration of ginsenoside Rg1 (40 mg/kg, 5 weeks), a potential neuroprotective agent extracted from ginseng, significantly ameliorated the behavioral and biochemical changes induced by UCMS exposure. These results suggest that miR-134-mediated dysregulation of structural plasticity may be related to the display of depression-like behaviors in stressed rats. The neuroprotective effects of ginsenoside Rg1, which produces an antidepressant like effect in this model of depression, appears to result from modulation of the miR-134 signaling pathway within the vmPFC.
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Affiliation(s)
- Cuiqin Fan
- Department of Physiology, Shandong University, School of Medicine, Wenhuaxilu Road, Jinan, Shandong Province, 250012, PR China
| | - Xiuzhi Zhu
- Department of Physiology, Shandong University, School of Medicine, Wenhuaxilu Road, Jinan, Shandong Province, 250012, PR China
| | - Qiqi Song
- Department of Physiology, Shandong University, School of Medicine, Wenhuaxilu Road, Jinan, Shandong Province, 250012, PR China
| | - Peng Wang
- Department of Physiology, Shandong University, School of Medicine, Wenhuaxilu Road, Jinan, Shandong Province, 250012, PR China
| | - Zhuxi Liu
- Department of Physiology, Shandong University, School of Medicine, Wenhuaxilu Road, Jinan, Shandong Province, 250012, PR China
| | - Shu Yan Yu
- Department of Physiology, Shandong University, School of Medicine, Wenhuaxilu Road, Jinan, Shandong Province, 250012, PR China; Shandong Provincial Key Laboratory of Mental Disorders, School of Medicine, Wenhuaxilu Road, Jinan, Shandong Province, 250012, PR China.
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Ginsenoside Rg1 Ameliorates Behavioral Abnormalities and Modulates the Hippocampal Proteomic Change in Triple Transgenic Mice of Alzheimer's Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:6473506. [PMID: 29204248 PMCID: PMC5674513 DOI: 10.1155/2017/6473506] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 08/07/2017] [Accepted: 08/24/2017] [Indexed: 01/19/2023]
Abstract
Alzheimer's disease (AD) is one of the most common neurodegenerative diseases, so far, there are no effective measures to prevent and cure this deadly condition. Ginsenoside Rg1 (Rg1) was shown to improve behavioral abnormalities in AD; however, the potential mechanisms remain unclear. In this study, we pretreated 7-month-old 3xTg-AD mice for 6 weeks with Rg1 and evaluated the effects of Rg1 on the behaviors and the protein expression of hippocampal tissues. The behavioral tests showed that Rg1 could improve the memory impairment and ameliorate the depression-like behaviors of 3xTg-AD mice. Proteomic results revealed a total of 28 differentially expressed hippocampal proteins between Rg1-treated and nontreated 3xTg-AD mice. Among these proteins, complexin-2 (CPLX2), synapsin-2 (SYN2), and synaptosomal-associated protein 25 (SNP25) were significantly downregulated in the hippocampus of 3xTg-AD mice compared with the WT mice, and the treatment of Rg1 modulated the expression of CPLX2 and SNP25 in the hippocampus of 3xTg-AD mice. The expression of CPLX2, SYN2, and SNP25 was further validated by Western blot analysis. Taken together, we concluded that Rg1 could be a potential candidate drug to improve the behavioral deficits in AD via modulating the expression of the proteins (i.e., CPLX2, SYN2, and SNP25).
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IMM-H004, A New Coumarin Derivative, Improved Focal Cerebral Ischemia via Blood–Brain Barrier Protection in Rats. J Stroke Cerebrovasc Dis 2017; 26:2065-2073. [DOI: 10.1016/j.jstrokecerebrovasdis.2016.11.121] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 11/21/2016] [Accepted: 11/25/2016] [Indexed: 01/04/2023] Open
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Grizzell JA, Patel S, Barreto GE, Echeverria V. Cotinine improves visual recognition memory and decreases cortical Tau phosphorylation in the Tg6799 mice. Prog Neuropsychopharmacol Biol Psychiatry 2017; 78:75-81. [PMID: 28536070 DOI: 10.1016/j.pnpbp.2017.05.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 05/08/2017] [Accepted: 05/08/2017] [Indexed: 11/16/2022]
Abstract
Alzheimer's disease (AD) is associated with the progressive aggregation of hyperphosphorylated forms of the microtubule associated protein Tau in the central nervous system. Cotinine, the main metabolite of nicotine, reduced working memory deficits, synaptic loss, and amyloid β peptide aggregation into oligomers and plaques as well as inhibited the cerebral Tau kinase, glycogen synthase 3β (GSK3β) in the transgenic (Tg)6799 (5XFAD) mice. In this study, the effect of cotinine on visual recognition memory and cortical Tau phosphorylation at the GSK3β sites Serine (Ser)-396/Ser-404 and phospho-CREB were investigated in the Tg6799 and non-transgenic (NT) littermate mice. Tg mice showed short-term visual recognition memory impairment in the novel object recognition test, and higher levels of Tau phosphorylation when compared to NT mice. Cotinine significantly improved visual recognition memory performance increased CREB phosphorylation and reduced cortical Tau phosphorylation. Potential mechanisms underlying theses beneficial effects are discussed.
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Affiliation(s)
- J Alex Grizzell
- Research & Development Service, Bay Pines VA Healthcare System, Bay Pines, FL 33744, USA
| | - Sagar Patel
- Department of Psychology, NeuroNET Research Center, University of Tennessee, Knoxville, TN 37996, USA
| | - George E Barreto
- Departamento de Nutrición y Bioquímica, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, D.C., Colombia; Center for Biomedical Research, Universidad Autónoma de Chile, Carlos Antúnez 1920, Providencia, Santiago, Chile
| | - Valentina Echeverria
- Research & Development Service, Bay Pines VA Healthcare System, Bay Pines, FL 33744, USA; Fac. Cs de la Salud, Universidad San Sebastián, Lientur 1457, Concepción 4080871, Chile.
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Chen C, Zhang H, Xu H, Zheng Y, Wu T, Lian Y. Ginsenoside Rb1 ameliorates cisplatin-induced learning and memory impairments. J Ginseng Res 2017; 43:499-507. [PMID: 31695559 PMCID: PMC6823748 DOI: 10.1016/j.jgr.2017.07.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 07/02/2017] [Accepted: 07/20/2017] [Indexed: 11/11/2022] Open
Abstract
Background Ginsenoside Rb1 (Rb1), a dominant component from the extract of Panax ginseng root, exhibits neuroprotective functions in many neurological diseases. This study was intended to investigate whether Rb1 can attenuate cisplatin-induced memory impairments and explore the potential mechanisms. Methods Cisplatin was injected intraperitoneally with a dose of 5 mg/kg/wk, and Rb1 was administered in drinking water at the dose of 2 mg/kg/d to rats for 5 consecutive wk. The novel objects recognition task and Morris water maze were used to detect the memory of rats. Nissl staining was used to examine the neuron numbers in the hippocampus. The activities of superoxide dismutase, glutathione peroxidase, cholineacetyltransferase, acetylcholinesterase, and the levels of malondialdehyde, reactive oxygen species, acetylcholine, tumor necrosis factor-α, interleukin-1β, and interleukin-10 were measured by ELISA to assay the oxidative stress, cholinergic function, and neuroinflammation in the hippocampus. Results Rb1 administration effectively ameliorates the memory impairments caused by cisplatin in both novel objects recognition task and Morris water maze task. Rb1 also attenuates the neuronal loss induced by cisplatin in the different regions (CA1, CA3, and dentate gyrus) of the hippocampus. Meanwhile, Rb1 is able to rescue the cholinergic neuron function, inhibit the oxidative stress and neuroinflammation in cisplatin-induced rat brain. Conclusion Rb1 rescues the cisplatin-induced memory impairment via restoring the neuronal loss by reducing oxidative stress and neuroinflammation and recovering the cholinergic neuron functions.
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Affiliation(s)
- Chen Chen
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, China
| | - Haifeng Zhang
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, China
| | - Hongliang Xu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, China
| | - Yake Zheng
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, China
| | - Tianwen Wu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, China
| | - Yajun Lian
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, China
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Gao Y, Chu S, Zhang Z, Chen N. Hepataprotective effects of ginsenoside Rg1 - A review. JOURNAL OF ETHNOPHARMACOLOGY 2017; 206:178-183. [PMID: 28427912 DOI: 10.1016/j.jep.2017.04.012] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Revised: 04/13/2017] [Accepted: 04/16/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND AND ETHNOPHARMACOLOGICAL RELEVANCE Ginseng has been used as efficient tonic and for the treatment of various diseases including hepatic disorders. Ginseng saponins, also known as ginsenosides, are principal constituents and have been treated to be responsible for disparate ginseng health benefits. The current review mainly focuses on ginsenoside Rg1, a compound isolated from traditional Chinese herbal medicine Panax ginseng Meyer. AIMS To summary the hepataprotective effects and related mechanisms of ginsenoside Rg1, we conclude this review by combining the literature and our own researches. METHODS As evidenced, we organized the pharmacological function of ginsenoside Rg1 by searching the pubmed. It has been deeply studied and summarized in the field of neurobiology, however, in this paper we described the pharmacological function of Rg1 in liver related to antioxidative stress and anti-inflammation. R&D: Individual ginsenoside could be used since it shows a wide array of beneficial functions in the regulation and disorders of acute and chronic hepatotoxicity, hepatitis, hepatic fibrosis and cirrhosis in various pathways and different mechanisms. Of note, the antioxidant hepatic protection of ginsenoside Rg1 is mainly through the induction of Keap1-Nrf2-ARE signaling pathway. CONCLUSION The multi-target actions of Rg1 substantiates it as a promising drug candidate for the treatment of hepatic impairment in different factors induced liver diseases.
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Affiliation(s)
- Yan Gao
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Shifeng Chu
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; Hunan University of Chinese Medicine, Changsha 410208, China
| | - Zhao Zhang
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Naihong Chen
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; Hunan University of Chinese Medicine, Changsha 410208, China.
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Cakir M, Duzova H, Tekin S, Taslıdere E, Kaya GB, Cigremis Y, Ozgocer T, Yologlu S. ACA, an inhibitor phospholipases A2 and transient receptor potential melastatin-2 channels, attenuates okadaic acid induced neurodegeneration in rats. Life Sci 2017; 176:10-20. [DOI: 10.1016/j.lfs.2017.03.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 03/22/2017] [Accepted: 03/27/2017] [Indexed: 12/31/2022]
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50
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Kim KH, Lee D, Lee HL, Kim CE, Jung K, Kang KS. Beneficial effects of Panax ginseng for the treatment and prevention of neurodegenerative diseases: past findings and future directions. J Ginseng Res 2017; 42:239-247. [PMID: 29989012 PMCID: PMC6035378 DOI: 10.1016/j.jgr.2017.03.011] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 03/15/2017] [Indexed: 01/20/2023] Open
Abstract
In recent years, several therapeutic drugs have been rationally designed and synthesized based on the novel knowledge gained from investigating the actions of biologically active chemicals derived from foods, plants, and medicinal herbs. One of the major advantages of these naturalistic chemicals is their ability to interact with multiple targets in the body resulting in a combined beneficial effect. Ginseng is a perennial herb (Araliaceae family), a species within the genus Panax, and a highly valued and popular medicinal plant. Evidence for the medicinal and health benefits of Panax ginseng and its components in preventing neurodegeneration has increased significantly in the past decade. The beneficial effects of P. ginseng on neurodegenerative diseases have been attributed primarily to the antioxidative and immunomodulatory activities of its ginsenoside components. Mechanistic studies on the neuroprotective effects of ginsenosides revealed that they act not only as antioxidants but also as modulators of intracellular neuronal signaling and metabolism, cell survival/death genes, and mitochondrial function. The goal of the present paper is to provide a brief review of recent knowledge and developments concerning the beneficial effects as well as the mechanism of action of P. ginseng and its components in the treatment and prevention of neurodegenerative diseases.
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Affiliation(s)
- Ki Hyun Kim
- School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea
| | - Dahae Lee
- School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea
| | - Hye Lim Lee
- College of Korean Medicine, Gachon University, Seongnam, Republic of Korea
| | - Chang-Eop Kim
- College of Korean Medicine, Gachon University, Seongnam, Republic of Korea
| | - Kiwon Jung
- Institute of Pharmaceutical Sciences, College of Pharmacy, CHA University, Sungnam, Republic of Korea
| | - Ki Sung Kang
- College of Korean Medicine, Gachon University, Seongnam, Republic of Korea
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