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Varesi A, Campagnoli LIM, Carrara A, Pola I, Floris E, Ricevuti G, Chirumbolo S, Pascale A. Non-Enzymatic Antioxidants against Alzheimer's Disease: Prevention, Diagnosis and Therapy. Antioxidants (Basel) 2023; 12:antiox12010180. [PMID: 36671042 PMCID: PMC9855271 DOI: 10.3390/antiox12010180] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/06/2023] [Accepted: 01/08/2023] [Indexed: 01/13/2023] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder characterized by progressive memory loss and cognitive decline. Although substantial research has been conducted to elucidate the complex pathophysiology of AD, the therapeutic approach still has limited efficacy in clinical practice. Oxidative stress (OS) has been established as an early driver of several age-related diseases, including neurodegeneration. In AD, increased levels of reactive oxygen species mediate neuronal lipid, protein, and nucleic acid peroxidation, mitochondrial dysfunction, synaptic damage, and inflammation. Thus, the identification of novel antioxidant molecules capable of detecting, preventing, and counteracting AD onset and progression is of the utmost importance. However, although several studies have been published, comprehensive and up-to-date overviews of the principal anti-AD agents harboring antioxidant properties remain scarce. In this narrative review, we summarize the role of vitamins, minerals, flavonoids, non-flavonoids, mitochondria-targeting molecules, organosulfur compounds, and carotenoids as non-enzymatic antioxidants with AD diagnostic, preventative, and therapeutic potential, thereby offering insights into the relationship between OS and neurodegeneration.
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Affiliation(s)
- Angelica Varesi
- Department of Biology and Biotechnology, University of Pavia, 27100 Pavia, Italy
| | | | - Adelaide Carrara
- Department of Internal Medicine and Therapeutics, University of Pavia, 27100 Pavia, Italy
| | - Ilaria Pola
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Elena Floris
- Department of Internal Medicine and Therapeutics, University of Pavia, 27100 Pavia, Italy
| | - Giovanni Ricevuti
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Salvatore Chirumbolo
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, 37129 Verona, Italy
| | - Alessia Pascale
- Department of Drug Sciences, Section of Pharmacology, University of Pavia, 27100 Pavia, Italy
- Correspondence:
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Wang B, Hu K, Li XN, Sun HD, Qin HB, Puno PT. Neuroprotective schinortriterpenoids from Schisandra neglecta collected in Medog County, Tibet, China. Bioorg Chem 2021; 110:104785. [PMID: 33714022 DOI: 10.1016/j.bioorg.2021.104785] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/23/2021] [Accepted: 02/24/2021] [Indexed: 11/24/2022]
Abstract
Schisdilactones K-U (1-11), a series of previously unreported 16,17-secopreschisanartane-type schinortriterpenoids (SNTs), were isolated from the leaves and stems of Schisandra neglecta A. C. Smith. Their structures were mainly established through analysis of their spectroscopic data. Besides, schisdilactones K (1), O (5) and R (8) were confirmed by single-crystal X-ray crystallographic analysis, and the configurations of schisdilactones T and U (10 and 11) were elucidated via quantum chemical calculation of their NMR chemical shifts and electronic circular dichroism (ECD) spectra. Schisdilactones L-S (2-8) and U (11) were found to exhibit moderate protective activities against corticosterone-induced apoptosis of PC12 cells at 20 μM, with cell viability in the range of 62.95-66.97%.
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Affiliation(s)
- Bin Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, Yunnan, People's Republic of China; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Kun Hu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, Yunnan, People's Republic of China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, Yunnan, People's Republic of China
| | - Han-Dong Sun
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, Yunnan, People's Republic of China
| | - Hong-Bo Qin
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, Yunnan, People's Republic of China.
| | - Pema-Tenzin Puno
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, Yunnan, People's Republic of China.
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Schisandrin A and B enhance the dentate gyrus neurogenesis in mouse hippocampus. J Chem Neuroanat 2020; 105:101751. [PMID: 32027950 DOI: 10.1016/j.jchemneu.2020.101751] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 01/18/2020] [Accepted: 01/18/2020] [Indexed: 12/14/2022]
Abstract
Schisandrin A and B (Sch A and B) are the main effective components of Schisandra chinensis (S. chinensis), which is traditionally used to enhance mental and intellectual functions in eastern Asia. Previously, we reported Sch A and B remarkably affect adult neurogenesis in the subventricular zone of mouse lateral ventricle. Since the neurogenesis in the hippocampal dentate gyrus (DG) is more important to learning, memory and cognition, here we further examined their effects on the adult DG neurogenesis. Phosphohistone H3 (PHH3) immunostaining showed that Sch B significantly enhanced the cell proliferation in the DG. Glial fibrillary acidic protein (GFAP, mostly labels astrocytes and some stem cells) staining was used to further identify the proliferating cell type. Dramatically, increases of GFAP+ cells in both Sch A and B treated groups were observed. What's more, the total numbers of the mature neurons labeled by neuron-specific nuclear protein (NeuN) were also increased in both Sch A and B treated groups compared with the controls. Together, Sch A and B enhance the adult DG neurogenesis by increasing astrocytes/stem cells and improving the survival and maturation of DG neurons. Our study shed a new light on the neuropharmacological functions of the herbal medicine S. chinensis.
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Kargozar R, Azizi H, Salari R. A review of effective herbal medicines in controlling menopausal symptoms. Electron Physician 2017; 9:5826-5833. [PMID: 29403626 PMCID: PMC5783135 DOI: 10.19082/5826] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 06/24/2017] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Acute menopausal syndrome especially hot flashes, is one of the most common gynecological problems during menopause. Due to the side effects of hormone therapy, herbal and complementary medicines are always of immense interest to people in the treatment and management of the symptoms and complications of menopause. OBJECTIVE The aim of this study was to investigate the mechanisms and effects of medicinal plants employed in the treatment of menopausal symptoms. METHODS This review article was carried out by examining clinical trial studies between the period of 1994 and 2016. The keywords, which include menopause, climacteric, hot flushes, flashes, herb and phytoestrogens were used to search for herbal medicines used in clinical trials for the treatment of menopausal symptoms using databases such as PubMed, Medline, Scopus, Google scholar, SID and Magiran. RESULTS The results of the study showed that the medicinal plants, which include Sage herb (Salvia officinalis), Lemon balm (Melissa officinalis), Valerina officinalis, Black cohosh (Cimicifuga racemosa), Fenugreek (Trigonella foenum-graecum), Black cumin (Nigella sativa), Vitex (Vitex agnus-castus), Fennel (Foeniculum vulgare), Evening primrose (Oenothera biennis), Ginkgo biloba, Alfalfa (Medicago sativa), Hypericum perforatum, Panax ginseng, Pimpinella anisum, Licorice (Glycyrrhiza glabra), Passiflora incarnata, Red clover (Trifolium pratense), and Glycine soja were effective in the treatment of acute menopausal syndrome with different mechanisms. CONCLUSION Medicinal plants can play an imperative role in the treatment of acute menopausal syndrome; however, further studies are required to buttress their efficacy in the treatment of acute menopausal syndrome.
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Affiliation(s)
- Rahele Kargozar
- Ph.D. student of Persian Medicine, Department of Persian Medicine, School of Persian and Complementary Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hoda Azizi
- M.D., Assistant Professor, Department of Chinese and Complementary Medicine, School of Persian and Complementary Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Roshanak Salari
- Ph.D. of Drug Control, Assistant Professor, Department of Clinical Persian Pharmacy, School of Persian and Complementary Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Compound Schisandra-Ginseng-Notoginseng-Lycium Extract Ameliorates Scopolamine-Induced Learning and Memory Disorders in Mice. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:8632016. [PMID: 28814961 PMCID: PMC5549506 DOI: 10.1155/2017/8632016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 05/05/2017] [Accepted: 06/07/2017] [Indexed: 12/14/2022]
Abstract
Schisandra, Ginseng, Notoginseng, and Lycium barbarum are traditional Chinese medicinal plants sharing cognitive-enhancing properties. To design a functional food to improve memory, we prepared a compound Schisandra-Ginseng-Notoginseng-Lycium (CSGNL) extract and investigated its effect on scopolamine-induced learning and memory loss in mice. To optimize the dose ratios of the four herbal extracts in CSGNL, orthogonal experiments were performed. Mice were administered CSGNL by gavage once a day for 30 days and then mouse learning and memory were evaluated by Morris water maze and step-through tests. The mechanisms of CSGNL improving learning and memory were investigated by assaying acetylcholine (ACh) levels and choline acetyltransferase (ChAT) and acetylcholinesterase (AChE) activities in the brain tissues of treated mice. The results showed that CSGNL significantly ameliorated scopolamine-induced learning and memory impairment, at least in part, by modulating ACh levels and ChAT and AChE activities in the mouse brain. Our data support the use of CSGNL as a functional food for learning and memory enhancement.
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Park JY, Kim KH. A randomized, double-blind, placebo-controlled trial of Schisandra chinensis for menopausal symptoms. Climacteric 2016; 19:574-580. [DOI: 10.1080/13697137.2016.1238453] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- J. Y. Park
- Department of Obstetrics and Gynecology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - K. H. Kim
- Department of Obstetrics and Gynecology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea
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Yan T, Shang L, Wang M, Zhang C, Zhao X, Bi K, Jia Y. Lignans from Schisandra chinensis ameliorate cognition deficits and attenuate brain oxidative damage induced by D-galactose in rats. Metab Brain Dis 2016; 31:653-61. [PMID: 26847610 DOI: 10.1007/s11011-016-9804-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 01/29/2016] [Indexed: 01/30/2023]
Abstract
The aim of this study was to explore the neuroprotective effects of active compounds from Schisandra chinensis (Trucz.) Baill. (Magnoliaceae) against the D-galactose (D-gal)-induced neurotoxicity in rat. The Wistar rats were subcutaneously injected with D-gal (150 mg/(kg day)) for six weeks and orally administered with water extract or 95 % ethanol extract (partitioned with petroleum ether (PE), chloroform (CF), ethyl acetate (EA) and n-Butanol (NB), respectively) of the fruits of Schisandra chinensis simultaneously. The alteration of cognitive functions was assessed by using Morris water maze and Step-down type passive avoidance test. The results demonstrated that PE fraction was the most effective fraction to ameliorate cognitive deficits. Further biochemical examination indicated that PE could attenuate the activities decreasing of superoxide dismutase (SOD), catalase (CAT), the total antioxidant (T-AOC) induced by D-gal, and maintain the normal levels of glutathione (GSH), malondialdehyde (MDA) and nitric oxide (NO) in the serum, prefrontal cortex, striatum and hippocampus of the brain of related rat, selectively. Meanwhile, the compounds of PE fraction were also identified as mainly lignans, thus, these results suggest that lignans from the PE fraction of Schisandra chinensis represented a potential source of medicine for the treatment of the aging-associated neurodegenerative diseases.
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Affiliation(s)
- Tingxu Yan
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, People's Republic China
| | - Lei Shang
- The first hospital of China Medical University, Shenyang, 110001, People's Republic China
| | - Mengshi Wang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, People's Republic China
| | - Chenning Zhang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, People's Republic China
| | - Xu Zhao
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, People's Republic China
| | - Kaishun Bi
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, People's Republic China
| | - Ying Jia
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, People's Republic China.
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Schisandrin A and B affect subventricular zone neurogenesis in mouse. Eur J Pharmacol 2014; 740:552-9. [DOI: 10.1016/j.ejphar.2014.06.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 06/19/2014] [Accepted: 06/19/2014] [Indexed: 11/21/2022]
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Hu D, Yang Z, Yao X, Wang H, Han N, Liu Z, Wang Y, Yang J, Yin J. Dibenzocyclooctadiene lignans from Schisandra chinensis and their inhibitory activity on NO production in lipopolysaccharide-activated microglia cells. PHYTOCHEMISTRY 2014; 104:72-8. [PMID: 24864016 DOI: 10.1016/j.phytochem.2014.04.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2013] [Revised: 12/10/2013] [Accepted: 12/30/2013] [Indexed: 05/20/2023]
Abstract
Four dibenzocyclooctadiene lignans, schisanchinins A-D, and 10 known compounds were isolated from the EtOAc extract of fruits of Schisandra chinensis (Turcz.) Baill. Structures of compounds 1-4 were elucidated using a combination of spectroscopic techniques, including MS, UV and IR, NMR ((1)H NMR, (13)C NMR, HMQC, HMBC). The stereochemistry of the chiral centers and the biphenyl configuration were determined using NOESY, as well as analysis of CD spectra. In vitro activity assays showed that 11 of the 14 compounds exhibited inhibitory activity on lipopolysaccharide (LPS)-induced NO release in primary murine BV2 microglia cells.
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Affiliation(s)
- Di Hu
- Development and Utilization Key Laboratory of Northeast Plant Materials of Liaoning Province, Department of Pharmacognosy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Zhiyou Yang
- Development and Utilization Key Laboratory of Northeast Plant Materials of Liaoning Province, Department of Pharmacognosy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xuechun Yao
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Hua Wang
- Development and Utilization Key Laboratory of Northeast Plant Materials of Liaoning Province, Department of Pharmacognosy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Na Han
- Development and Utilization Key Laboratory of Northeast Plant Materials of Liaoning Province, Department of Pharmacognosy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Zhihui Liu
- Development and Utilization Key Laboratory of Northeast Plant Materials of Liaoning Province, Department of Pharmacognosy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yu Wang
- The Chinese People's Liberation Army 463 Hospital, Shenyang 110042, China
| | - Jingyu Yang
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jun Yin
- Development and Utilization Key Laboratory of Northeast Plant Materials of Liaoning Province, Department of Pharmacognosy, Shenyang Pharmaceutical University, Shenyang 110016, China.
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Neuroprotective effect of schizandrin A on oxygen and glucose deprivation/reperfusion-induced cell injury in primary culture of rat cortical neurons. J Physiol Biochem 2014; 70:735-47. [DOI: 10.1007/s13105-014-0342-3] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Accepted: 06/16/2014] [Indexed: 01/13/2023]
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Yuan XX, Yang LP, Yang ZL, Xiao WL, Sun HD, Wu GS, Luo HR. Effect of nigranoic acid on Ca²⁺ influx and its downstream signal mechanism in NGF-differentiated PC12 cells. JOURNAL OF ETHNOPHARMACOLOGY 2014; 153:725-731. [PMID: 24674947 DOI: 10.1016/j.jep.2014.03.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 02/12/2014] [Accepted: 03/15/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Schisandra chinensis has a long history of use as a famous traditional Chinese medicine. The plants of genus Schisandra, especially Schisandra neglecta, Schisandra rubriflora, and Schisandra sphaerandra are used in the same way as Schisandra chinensis in the folk medicine to treat insomnia, fatigue, increasing intelligence, and tranquilizing. Many studies showed that lignans were the major active components of Schisandra genus, whereas the bioactivity of abundant triterpenoids in Schisandra genus, such as nigranoic acid (SBB1, 3,4-secocycloartene triterpenoid), has not been examined yet in neuropathology. MATERIALS AND METHODS After treating with SBB1, intracellular Ca(2+) concentration was analyzed by Ca(2+) fluorescent indicator (Fluo-4 AM) in NGF-differentiated PC12 cells. Intracellular nitric oxide (NO) level was analyzed using NO fluorescent indicator (DAF-FM). The expression of extracellular signal regulated kinase 1 and 2 (ERK1/2) was analyzed by western blotting, and the temporal mRNA for BDNF and c-fos was analyzed using reverse transcription quantitative PCR. RESULT We found that SBB1 induced Ca(2+) influx in a time- and concentration-dependent manner, which was significantly attenuated in Ca(2+) free media. SBB1 promoted the intracellular NO production which depended on increasing cytoplasmic Ca(2+) level. Moreover, SBB1 stimulated activation of ERK1/2 through Ca(2+)-CaMKII pathway. In addition, we found that SBB1 increased the expression of BDNF and c-fos mRNA. CONCLUSION These results suggest that SBB1 is able to promote NO production and stimulate phosphorylation of ERK1/2 through Ca(2+) influx, further impact expression of BDNF and c-fos, which provides evidence for the effects of SBB1 that may be benefit to enhance mental and intellectual functions.
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Affiliation(s)
- Xiao-Xi Yuan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China; University of Chinese Academy of Sciences, Beijing 100039, China
| | - Li-Ping Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China; University of Chinese Academy of Sciences, Beijing 100039, China; Yunnan Institute of Traditional Chinese Medicine and Materia Medica, Kunming 650223, Yunnan, China
| | - Zhong-Lin Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China; University of Chinese Academy of Sciences, Beijing 100039, China
| | - Wei-Lie Xiao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China.
| | - Han-Dong Sun
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China
| | - Gui-Sheng Wu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China
| | - Huai-Rong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China.
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Jeong EJ, Lee HK, Lee KY, Jeon BJ, Kim DH, Park JH, Song JH, Huh J, Lee JH, Sung SH. The effects of lignan-riched extract of Shisandra chinensis on amyloid-β-induced cognitive impairment and neurotoxicity in the cortex and hippocampus of mouse. JOURNAL OF ETHNOPHARMACOLOGY 2013; 146:347-54. [PMID: 23333311 DOI: 10.1016/j.jep.2013.01.003] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Revised: 12/02/2012] [Accepted: 01/03/2013] [Indexed: 05/20/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The fruits of Schisandra chinensis (Trucz.) Baill. (Schisandraceae) which have been used as a tonic especially for kidney yin deficiency in Chinese traditional medicine are recently receiving attention for its preventive activity on age-related neurodegenerative diseases. A variety of studies demonstrated the cognitive-enhancing effects of Schisandra chinensis through animal tests and also in clinical trials. AIM OF STUDY In this study, we attempted to investigate the effects of the lignan-riched extract of Schisandra chinensis fruits (ESP-806) on neurotoxicity and memory impairment induced by Aβ1-42 injection in mice. MATERIALS AND METHODS The fruits of Schisandra chinensis were extracted with the mixture of n-hexane:ethanol (9:1), which is riched with bioactive dibenzocyclooctadiene lignans, schizandrin, gomisin N, wuweigisu C. After oral treatment of ESP-806 (100 mg/kg body weight) followed by injection of Aβ1-42 (2 μg/mouse, i.c.v.), novel object recognition and passive avoidance tests were evaluated. To verify the cognition enhancing effects of ESP-806, we examined the effects of ESP-806 on the activities of β-secretase and acetylcholinesterase, and the contents of Aβ and the reduced glutathione within the cortex and hippocampus of Aβ-injected mice. RESULTS Oral treatment of ESP-806 (100 mg/kg body weight) significantly attenuated Aβ1-42-induced memory impairment evaluated by behavioral tests. Furthermore, the treatment of ESP-806 attenuated the elevation of β-secretase activity accompanying the reduced level of Aβ1-42 in the cortex and hippocampus of the brain. ESP-806 also significantly inhibited the acetylcholinesterase activity in the hippocampus and increased the content of the reduced glutathione in the cortex and hippocampus of mouse brain. CONCLUSIONS These data suggested that the extract of Schisandra chinensis fruits riched with dibenzocyclooctadiene lignans may be useful in the prevention and treatment of Alzheimer's disease.
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Affiliation(s)
- Eun Ju Jeong
- College of Pharmacy and Research Institute of Pharmaceutical Science, Seoul National University, Seoul, South Korea
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Schizandrin, an antioxidant lignan from Schisandra chinensis, ameliorates Aβ1-42-induced memory impairment in mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2012; 2012:721721. [PMID: 22829961 PMCID: PMC3399599 DOI: 10.1155/2012/721721] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Revised: 05/14/2012] [Accepted: 05/14/2012] [Indexed: 11/17/2022]
Abstract
In the present study, we examined the effect of schisandrin (SCH) of Schisandra chinensis on the amyloid-beta1–42- (Aβ1–42-) induced memory impairment in mice and elucidated the possible antioxidative mechanism. Mice were intracerebroventricular (i.c.v.) injected with the aggregated Aβ1–42 and then treated with SCH (4, 12, and 36 mg/kg body weight) or donepezil (DPZ), a reference drug (0.65 mg/kg) by intragastric infusion for 14 days. Noncognitive disturbances and cognitive performance were evaluated by locomotor activity test, Y-maze test, and water maze test. Antioxidative enzyme activities including superoxide dismutase (SOD) and glutathione peroxidase (GSH-px) and levels of malondialdehyde (MDA), glutathione (GSH), and oxidized glutathione (GSSG) within the cerebral cortex and hippocampus of mice were measured to elucidate the mechanism. Our results showed that SCH significantly improved Aβ1–42-induced short-term and spatial reference memory impairments in Y-maze test and water maze test. Furthermore, in the cerebral cortex and hippocampus of mice, SOD and GSH-px activities, GSH level, and GSH/GSSG ratio were increased, and levels of MDA and GSSG were decreased by the treatment of SCH. These results suggest that SCH is a potential cognitive enhancer against Alzheimer's disease through antioxidative action.
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Yang SH, Jeng CJ, Chen CH, Chen Y, Chen YC, Wang SM. Schisandrin enhances dendrite outgrowth and synaptogenesis in primary cultured hippocampal neurons. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2011; 91:694-702. [PMID: 21302324 DOI: 10.1002/jsfa.4238] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
BACKGROUND Schisandra chinensis, commonly used in Asia for tea material and traditional Chinese medicine, is presumed to enhance mental and intellectual functions. In this study, the effects and signalling mechanisms of a purified compound schisandrin, one of the lignan of Schisandra chinensis, on primary cultured hippocampal neurons were investigated. RESULTS Schisandrin treatment enhanced total dendritic length and branching complexity, both of which were significantly suppressed in the presence of specific blockers for calmodulin-dependent kinase II (CaMKII), protein kinase C epsilon (PKCε), and mitogen activated protein kinase kinase (MEK). Moreover, schisandrin induced calcium influx, and phosphorylation of CaMKII, PKCε, and MEK. Inhibition of CAMKII and PKCε attenuated the schisandrin-induced phosphorylation of PKCε and MEK, and the phosphorylation of MEK, respectively. Moreover, schisandrin also stimulated the phosphorylation of cyclic AMP responsive-element binding protein (CREB) at Ser-133, an effect that was blocked by KN93. In addition to its neuritogenic effects, schisandrin increased the numbers of postsynaptic density-95-positive and FM1-43-positive puncta in dendrites and synaptic boutons, respectively. CONCLUSION In hippocampal neurons, schisandrin exhibits neurotrophic properties that are mediated by the CaMKII-PKCε-MEK pathway.
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Affiliation(s)
- Shih-Hung Yang
- Department of Anatomy and Cell Biology, College of Medicine, National Taiwan University, No. 1, Section 1, Jen-Ai Road, Taipei 10051, Taiwan
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Choi YW, Kim K, Jo JY, Kim HL, Lee YJ, Shin WJ, Sacket SJ, Han M, Im DS. Wuweizisu C from Schisandra chinensis decreases membrane potential in C6 glioma cells. Acta Pharmacol Sin 2008; 29:1006-12. [PMID: 18718168 DOI: 10.1111/j.1745-7254.2008.00838.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
AIM To study the effects of dibenzocyclooctadiene lignans isolated from Schisandra chinensis, such as wuweizisu C, gomisin N, gomisin A, and schisandrin, on the membrane potential in C6 glioma cells. METHODS The membrane potential was estimated by measuring the fluorescence change in DiBAC-loaded glioma cells. RESULTS Wuweizisu C decreased the membrane potential in a concentration-dependent manner. Gomisin N and gomisin A, however, showed differential modulation and no change was induced by schisandrin or dimethyl- 4,4'-dimethoxy-5,6,5',6'-dimethylene dioxybiphenyl-2,2'-dicarboxylate, a synthetic drug derived from dibenzocyclooctadiene lignans. We found no involvement of G(i/o ) proteins, phospholipase C, and extracellular Na(+) on the wuweizisu C-induced decrease of the membrane potential. Wuweizisu C by itself did not change the intracellular Ca(2+)[Ca(2+)](i) concentration, but decreased the ATP-induced Ca(2+) increase in C6 glioma cells. The 4 lignans at all concentrations used in this study did not induce any effect on cell viability. Furthermore, we found a similar decrease of the membrane potential by wuweizisu C in PC12 neuronal cells. CONCLUSION Our results suggest that the decrease in the membrane potential and the modulation of [Ca(2+)](i) concentration by wuweizisu C could be important action mechanisms of wuweizisu C.
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Affiliation(s)
- Young-whan Choi
- Department of Horticultural Bioscience, Pusan National University, Miryang-si 627-706, Republic of Korea
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Egashira N, Kurauchi K, Iwasaki K, Mishima K, Orito K, Oishi R, Fujiwara M. Schizandrin reverses memory impairment in rats. Phytother Res 2008; 22:49-52. [PMID: 17705144 DOI: 10.1002/ptr.2258] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The present study investigated the effect of schizandrin, a component of the fruit of Schizandra chinesis Baill (Fructus Schizandrae), on memory impairment in rats. Scopolamine (0.5 mg/kg, i.p.), a non-selective muscarinic receptor antagonist, markedly impaired spatial memory in an eight-arm radial maze. A higher dose of scopolamine (3 mg/kg, i.p.) also impaired the passive avoidance response. Schizandrin (1 and 10 mg/kg, p.o.) significantly reversed the scopolamine-induced impairment of spatial memory. Similarly, schizandrin (1 mg/kg, p.o.) significantly reversed the scopolamine-induced impairment of the passive avoidance response. Moreover, in mice, schizandrin (1 and 10 mg/kg, p.o.) enhanced tremors induced by oxotremorine, a muscarinic M(1) receptor agonist. Taken together these findings suggest that schizandrin reverses scopolamine-induced memory impairment, in part, by enhancing cholinergic function, and that schizandrin might be useful for treating memory deficits.
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Affiliation(s)
- Nobuaki Egashira
- Department of Pharmacy, Kyushu University Hospital, Fukuoka 812-8582, Japan.
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Wu CR, Lin LW, Wang WH, Hsieh MT. The ameliorating effects of LiuWei Dihuang Wang on cycloheximide-induced impairment of passive avoidance performance in rats. JOURNAL OF ETHNOPHARMACOLOGY 2007; 113:79-84. [PMID: 17644289 DOI: 10.1016/j.jep.2007.05.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2006] [Revised: 03/30/2007] [Accepted: 05/01/2007] [Indexed: 05/16/2023]
Abstract
The ameliorating effects of aqueous and ethanolic extracts of LiuWei Dihuang Wang (LDW(W) and LDW(E)) after single, 1-week or 2-week consecutive treatment on the cycloheximide-induced amnesia by using the passive avoidance task in rats were studied. After single treatment, LDW(W) and LDW(E) (1 and 2g/kg) significantly prolonged the shortened step-through latency induced by CXM and their potency was equal. LDW(W) at 1g/kg after 1-week consecutive treatment or at 0.1g/kg after 2-week consecutive treatment almost completely reversed CXM-induced amnesia. LDW(W) at any dose alone after single, 1-week or 2-week consecutive treatment did not influence the step-through latency in the training trial in rats. Furthermore, muscarinic antagonist scopolamine, peripheral cholinergic antagonist scopolamine methylbromide, serotonin precursor 5-hydroxytryptamine and serotonin releaser p-chloroamphetamine could block the ameliorating effects of LDW(W). GABA(A) receptor antagonist bicuculline and GABA(B) receptor agonist baclofen also blocked the ameliorating effects of LDW(W). These results suggest that the ameliorating effects of LDW whose potency were parallel to treatment duration might be related to activating peripheral cholinergic neuronal system and modulating the central nervous system.
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MESH Headings
- Amnesia/chemically induced
- Amnesia/drug therapy
- Animals
- Avoidance Learning/drug effects
- Cycloheximide
- Dose-Response Relationship, Drug
- Drugs, Chinese Herbal/administration & dosage
- Drugs, Chinese Herbal/chemistry
- Ethanol/chemistry
- Male
- Rats
- Rats, Sprague-Dawley
- Receptors, GABA-A/drug effects
- Receptors, GABA-A/metabolism
- Receptors, GABA-B/drug effects
- Receptors, GABA-B/metabolism
- Receptors, Muscarinic/drug effects
- Receptors, Muscarinic/metabolism
- Receptors, Serotonin/drug effects
- Receptors, Serotonin/metabolism
- Water/chemistry
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Affiliation(s)
- Chi-Rei Wu
- Institute of Chinese Pharmaceutical Sciences, China Medical University, 91 Hsieh Shih Road, Taichung, Taiwan, ROC.
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Hung TM, Na M, Min BS, Ngoc TM, Lee I, Zhang X, Bae K. Acetylcholinesterase inhibitory effect of lignans isolated fromSchizandra chinensis. Arch Pharm Res 2007; 30:685-90. [PMID: 17679544 DOI: 10.1007/bf02977628] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The hexane extract of the fruit of Schizandra chinensis (Schisandraceae) was found to show significant inhibition of the activity of acetylcholinesterase enzyme (AChE). In further studies, fourteen lignans were isolated, and evaluated for their inhibitory effect on AChE. The compounds having both aromatic methylenedioxy and hydroxyl groups on their cyclooctadiene ring, such as gomisin C (6), gomisin G (7), gomisin D (8), schisandrol B (11) and gomisin A (13), entirely inhibited AChE in dose dependent manners, with IC50 values of 6.71 +/- 0.53, 6.55 +/- 0.31, 7.84 +/- 0.62, 12.57 +/- 1.07 and 13.28 +/- 1.68 microM, respectively. These results indicate that the lignans could potentially be a potent class of AChE inhibitors.
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Affiliation(s)
- Tran Manh Hung
- College of Pharmacy, Chungnam National University, Daejeon 305-764, Korea
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Kim DH, Hung TM, Bae KH, Jung JW, Lee S, Yoon BH, Cheong JH, Ko KH, Ryu JH. Gomisin A improves scopolamine-induced memory impairment in mice. Eur J Pharmacol 2006; 542:129-35. [PMID: 16824513 DOI: 10.1016/j.ejphar.2006.06.015] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2006] [Revised: 06/06/2006] [Accepted: 06/12/2006] [Indexed: 01/25/2023]
Abstract
Gomisin A is a component of the fruits of Schizandra chinesis which are widely used as a tonic in traditional Chinese medicine. In the present study, we assessed the effect of gomisin A on the learning and memory impairments induced by scopolamine. The cognition-enhancing effect of gomisin A was investigated using a passive avoidance test, the Y-maze test, and the Morris water maze test in mice. Drug-induced amnesia was induced by treating animals with scopolamine (1 mg/kg, i.p.). Gomisin A (5 mg/kg, p.o.) administration significantly reversed scopolamine-induced cognitive impairments in mice by the passive avoidance test and the Y-maze test (P<0.05), and also improved escape latency in the Morris water maze test at 5 mg/kg (P<0.05). Moreover, in an in vitro study, gomisin A was found to inhibit acetylcholinesterase activity in a dose-dependent manner (IC50 value; 15.5 microM). These results suggest that gomisin A may be a useful cognitive impairment treatment, and its beneficial effects are mediated, in part, via enhancing the cholinergic nervous system.
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Affiliation(s)
- Dong Hyun Kim
- Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, #1 Hoeki-dong, Dongdeamoon-ku, Seoul 130-701, South Korea
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Ho SC, Ho YF, Lai TH, Liu TH, Wu RY. Traditional Chinese herbs against hypertension enhance memory acquisition. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2006; 33:787-95. [PMID: 16265991 DOI: 10.1142/s0192415x05003326] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Recent findings of a link between high blood pressure (BP) and dementia have given new prospects. The aim of this study is to analyze a mixture of Chinese herbs, Tianma Gouteng Decoction (TGD), which was traditionally used to treat hypertension, and investigate its relation to ameliorating cognitive impairment. We discovered that TGD also had properties involving enhancement of memory acquisition (learning) skills in mice, but not memory consolidation. It was observed that TGD could prolong the step-through latency at doses of 1.0 and 2.5 g/kg on passive avoidance task in mice. TGD could be developed further to treat mice with amnesia, which was induced by scopolamine at the same dose under long-term (8 days) administration.
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Affiliation(s)
- Shih-Ching Ho
- Chinese Herbal Medicine Division, Development Center for Biotechnology Xizhi City, Taipei County 221, Taiwan.
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Zhang ZJ. Therapeutic effects of herbal extracts and constituents in animal models of psychiatric disorders. Life Sci 2004; 75:1659-99. [PMID: 15268969 DOI: 10.1016/j.lfs.2004.04.014] [Citation(s) in RCA: 210] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2003] [Accepted: 04/07/2004] [Indexed: 11/18/2022]
Abstract
A search for novel pharmacotherapy from medicinal plants for psychiatric illnesses has progressed significantly in the past decade. This is reflected in the large number of herbal preparations for which psychotherapeutic potential has been evaluated in a variety of animal models. The objective of this review is to provide an overview of herbal extracts and constituents that have significant therapeutic effects in animal models of psychiatric illnesses. Eighty five individual herbs reviewed were classified as anxiolytic, antidepressant, neuroleptic, antidementia, or anti-substance abuse herbs. The full scientific name of each herb, herbal part used, active constituent, extract, dose range and route, animal model, possible mechanisms of action, and pertinent references are presented via synoptic tables. The herbal mixtures were also mentioned. A considerable number of herbal constituents whose behavioral effects and pharmacological actions have been well characterized may be good candidates for further investigations that may ultimately result in clinical use. The investigation of a large portion of the herbal extracts and herbal mixtures is in its infancy. Herbal remedies that have demonstrable psychotherapeutic activities have provided a potential to psychiatric pharmaceuticals and deserve increased attention in future studies.
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Affiliation(s)
- Zhang-Jin Zhang
- Department of Psychiatry, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA.
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