1
|
Agarwal T, Manandhar S, B HK, Famurewa AC, Gurram PC, Suggala RS, Sankhe R, Mudgal J, Pai KSR. Oxyresveratrol-β-cyclodextrin mitigates streptozotocin-induced Alzheimer's model cognitive impairment, histone deacetylase activity in rats: in silico & in vivo studies. Sci Rep 2024; 14:9897. [PMID: 38688962 PMCID: PMC11061296 DOI: 10.1038/s41598-024-57188-7] [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: 08/22/2023] [Accepted: 03/14/2024] [Indexed: 05/02/2024] Open
Abstract
Alzheimer's disease (AD) is associated with cognitive deficits and epigenetic deacetylation that can be modulated by natural products. The role of natural oxyresveratrol-β-cyclodextrin (ORV) on cognition and histone deacetylase activity in AD is unclear. Herein, in-silico docking and molecular dynamics simulation analysis determined that oxyresveratrol potentially targets histone deacetylase-2 (HDAC2). We therefore evaluated the in vivo ameliorative effect of ORV against cognitive deficit, cerebral and hippocampal expression of HDAC in experimental AD rats. Intracerebroventricular injection of STZ (3 mg/kg) induced experimental AD and the rats were treated with low dose (200 mg/kg), high dose (400 mg/kg) of ORV and donepezil (10 mg/kg) for 21 days. The STZ-induced AD caused cognitive and behavioural deficits demonstrated by considerable increases in acetylcholinesterase activity and escape latency compared to sham control. The levels of malondialdehyde (MDA) and HDAC activity were significantly increased in AD disease group comparison to the sham. Interestingly, the ORV reversed the cognitive-behavioural deficit and prominently reduced the MDA and HDAC levels comparable to the effect of the standard drug, donepezil. The findings suggest anti-AD role of ORV via antioxidant effect and inhibition of HDAC in the hippocampal and frontal cortical area of rats for AD.
Collapse
Affiliation(s)
- Tushar Agarwal
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Suman Manandhar
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Harish Kumar B
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Ademola C Famurewa
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
- Department of Medical Biochemistry, Faculty of Basic Medical Sciences, College of Medical Sciences, Alex Ekwueme Federal University, Ndufu-Alike, Ikwo, Abakaliki, Ebonyi State, Nigeria
| | - Prasada Chowdari Gurram
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Ramya Shri Suggala
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Runali Sankhe
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Jayesh Mudgal
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - K Sreedhara Ranganath Pai
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India.
| |
Collapse
|
2
|
Phan HVT, Nguyen DV, Le TKD, Nguyen TAM, Dong PSN, Tran TN, Dao NVT, Nguyen HC, Luu HT, Chavasiri W, Hoang LTTT, Nguyen VK. Morusacerane: A new gammacerane triterpenoid from the trunk of Morus Alba linn. with α-glucosidase inhibitory activity. Nat Prod Res 2024:1-10. [PMID: 38600840 DOI: 10.1080/14786419.2024.2340043] [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: 01/07/2024] [Accepted: 03/29/2024] [Indexed: 04/12/2024]
Abstract
This phytochemistry investigation on the trunk of Morus alba L. resulted in the isolation of three triterpenoids, including a new gammacerane triterpenoid - morusacerane (1); along with two known compounds of betulinic acid (2) and ursolic acid (3). The structure elucidation was thoroughly conducted based on 1D, 2D-NMR and HRESIMS spectra, followed by a comparison with existing literatures. The evaluation on α-glucosidase inhibitory exhibited the great potential of the application of these isolated compounds in diabetes treatments. The results show that morusacerane (1), betulinic acid (2), and ursolic acid (3) demonstrate the strong inhibitory with the IC50 values of 106.1, 11.12, and 7.20 μM, respectively. All of these compounds interacted well with the allosteric site enzyme α-glucosidase MAL32 through H-bonds and hydrophobic interaction.
Collapse
Affiliation(s)
- Hoang-Vinh-Truong Phan
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, Vietnam
- Faculty of Natural Sciences, Duy Tan University, Da Nang, Vietnam
| | - Duy Vu Nguyen
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok, Thailand
| | - Thi-Kim-Dung Le
- Laboratory of Biophysics, Institute for Advanced Study in Technology, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Thi-Anh-Minh Nguyen
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
- School of Engineering & Technology, Duy Tan University, Da Nang, Vietnam
| | - Phan-Si-Nguyen Dong
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, Vietnam
- Faculty of Natural Sciences, Duy Tan University, Da Nang, Vietnam
| | - Thanh-Nha Tran
- Department of Environmental Engineering, Thu Dau Mot University, Binh Duong, Vietnam
| | - Ngoc-Van-Trang Dao
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
- School of Engineering & Technology, Duy Tan University, Da Nang, Vietnam
| | - Hieu Cuong Nguyen
- Southern Institute of Ecology, Institute of Applied Materials Science and Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
| | - Hong Truong Luu
- Southern Institute of Ecology, Institute of Applied Materials Science and Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
| | - Warinthorn Chavasiri
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok, Thailand
| | - Le-Thuy-Thuy-Trang Hoang
- Laboratory of Advanced Materials Chemistry, Institute for Advanced Study in Technology, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Van-Kieu Nguyen
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, Vietnam
- Faculty of Natural Sciences, Duy Tan University, Da Nang, Vietnam
| |
Collapse
|
3
|
Batiha GES, Al-Snafi AE, Thuwaini MM, Teibo JO, Shaheen HM, Akomolafe AP, Teibo TKA, Al-Kuraishy HM, Al-Garbeeb AI, Alexiou A, Papadakis M. Morus alba: a comprehensive phytochemical and pharmacological review. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023:10.1007/s00210-023-02434-4. [PMID: 36877269 DOI: 10.1007/s00210-023-02434-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 02/16/2023] [Indexed: 03/07/2023]
Abstract
Morus alba is a fast-growing shrub or medium-sized tree with a straight, cylindrical trunk. Medicinally, whole plants, leaves, fruits, branches, and roots have been employed. Google Scholar, PubMed, Scopus, and Web of Science were used to search for relevant material on the phytochemical components and pharmacologic and mechanism of action of the Morus alba. This was reviewed to assess important updates about Morus alba. The fruits of Morus alba have traditionally been used as an analgesic, anthelmintic, antibacterial, anti-rheumatic, diuretic, hypotensive, hypoglycemia, purgative, restorative, sedative tonic, and blood stimulant. Various plant parts were used as a cooling, sedating, diuretic, tonic, and astringent agent to treat nerve disorders. The plant contained tannins, steroids, phytosterols, sitosterol, glycosides, alkaloids, carbohydrates, proteins, and amino acids, as well as saponins, triterpenes, phenolics, flavonoids, benzofuran derivatives, anthocyanins, anthraquinones, glycosides, vitamins, and minerals. Previous pharmacological research identified antimicrobial, anti-inflammatory, immunological, analgesic, antipyretic, antioxidant, anti-cancer, antidiabetic, gastrointestinal, respiratory, cardiovascular, hypolipidemic, anti-obesity, dermatological, neurological, muscular, and protecting effects. This study looked at Morus alba's traditional uses, chemical components, and pharmacological effects.
Collapse
Affiliation(s)
- Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, 22511, El Beheira, Egypt.
| | - Ali Esmail Al-Snafi
- Department of Pharmacology, College of Medicine, University of Thi-Qar, Nasiriyah, Iraq
| | - Mahdi M Thuwaini
- College of Medical and Healthy Techniques, Southern Technique University, Basra, Iraq
| | - John Oluwafemi Teibo
- Department of Biochemistry and Immunology, Ribeirão, Preto Medical School , University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
| | - Hazem M Shaheen
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, 22511, El Beheira, Egypt
| | | | - Titilade Kehinde Ayandeyi Teibo
- Department of Maternal-Infant and Public Health Nursing, College of Nursing, University of São Paulo, Ribeirão PretoRibeirão Preto, São Paulo, Brazil
| | - Hayder M Al-Kuraishy
- Department of Clinical Pharmacologyand, Therapeutic Medicine, College of Medicine , Almustansiriyah University, Baghdad, Iraq
| | - Ali I Al-Garbeeb
- Department of Clinical Pharmacologyand, Therapeutic Medicine, College of Medicine , Almustansiriyah University, Baghdad, Iraq
| | - Athanasios Alexiou
- Department of Science and Engineering, Novel Global Community Educational Foundation, Hebersham, NSW, 2770, Australia.,AFNP Med, 1030, Vienna, Austria
| | - Marios Papadakis
- Department of Surgery II, University Hospital Witten-Herdecke, University of Witten-Herdecke, Heusnerstrasse 40, 42283, Wuppertal, Germany.
| |
Collapse
|
4
|
Likhitwitayawuid K. Oxyresveratrol: Sources, Productions, Biological Activities, Pharmacokinetics, and Delivery Systems. Molecules 2021; 26:4212. [PMID: 34299485 PMCID: PMC8307110 DOI: 10.3390/molecules26144212] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/05/2021] [Accepted: 07/08/2021] [Indexed: 12/18/2022] Open
Abstract
Oxyresveratrol has recently attracted much research attention due to its simple chemical structure and diverse therapeutic potentials. Previous reviews describe the chemistry and biological activities of this phytoalexin, but additional coverage and greater accessibility are still needed. The current review provides a more comprehensive summary, covering research from 1955 to the present year. Oxyresveratrol occurs in both gymnosperms and angiosperms. However, it has never been reported in plants in the subclass Sympetalae, and this point might be of both chemotaxonomic and biosynthetic importance. Oxyresveratrol can be easily obtained from plant materials by conventional methods, and several systems for both qualitative and quantitative analysis of oxyresveratrol contents in plant materials and plant products are available. Oxyresveratrol possesses diverse biological and pharmacological activities such as the inhibition of tyrosinase and melanogenesis, antioxidant and anti-inflammatory activities, and protective effects against neurological disorders and digestive ailments. However, the unfavorable pharmacokinetic properties of oxyresveratrol, including low water solubility and poor oral availability and stability, have posed challenges to its development as a useful therapeutic agent. Recently, several delivery systems have emerged, with promising outcomes that may improve chances for the clinical study of oxyresveratrol.
Collapse
Affiliation(s)
- Kittisak Likhitwitayawuid
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| |
Collapse
|
5
|
Evaluation of Selective COX-2 Inhibition and In Silico Study of Kuwanon Derivatives Isolated from Morus alba. Int J Mol Sci 2021; 22:ijms22073659. [PMID: 33915826 PMCID: PMC8036738 DOI: 10.3390/ijms22073659] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/26/2021] [Accepted: 03/26/2021] [Indexed: 11/17/2022] Open
Abstract
Six kuwanon derivatives (A/B/C/E/H/J) extracted from the roots of Morus alba L. were evaluated to determine their cyclooxygenase (COX)-1 and 2 inhibitory effects. Cyclooxygenase (COX) is known as the target enzyme of nonsteroidal anti-inflammatory drugs (NSAIDs), which are the most widely used therapeutic agents for pain and inflammation. Among six kuwanon derivatives, kuwanon A showed selective COX-2 inhibitory activity, almost equivalent to that of celecoxib, a known COX inhibitor. Kuwanon A showed high COX-2 inhibitory activity (IC50 = 14 μM) and a selectivity index (SI) range of >7.1, comparable to celecoxib (SI > 6.3). To understand the mechanisms underlying this effect, we performed docking simulations, fragment molecular orbital (FMO) calculations, and pair interaction energy decomposition analysis (PIEDA) at the quantum-mechanical level. As a result, kuwanon A had the strongest interaction with Arg120 and Tyr355 at the gate of the COX active site (−7.044 kcal/mol) and with Val89 in the membrane-binding domain (−6.599 kcal/mol). In addition, kuwanon A closely bound to Val89, His90, and Ser119, which are residues at the entrance and exit routes of the COX active site (4.329 Å). FMO calculations and PIEDA well supported the COX-2 selective inhibitory action of kuwanon A. It showed that the simulation and modeling results and experimental evidence were consistent.
Collapse
|
6
|
Antioxidant Compound, Oxyresveratrol, Inhibits APP Production through the AMPK/ULK1/mTOR-Mediated Autophagy Pathway in Mouse Cortical Astrocytes. Antioxidants (Basel) 2021; 10:antiox10030408. [PMID: 33800526 PMCID: PMC7998742 DOI: 10.3390/antiox10030408] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/05/2021] [Accepted: 03/05/2021] [Indexed: 12/13/2022] Open
Abstract
Oxyresveratrol (OxyR), a well-known polyphenolic phytoalexin, possesses a wide range of pharmacological and biological properties, comprising antioxidant, anti-inflammatory, free radical scavenging, anti-cancer, and neuroprotective activities. Autophagy is a cellular self-degradation system that removes aggregated or misfolded intracellular components via the autophagosome-lysosomal pathway. Astrocyte accumulation is one of the earliest neuropathological changes in Alzheimer’s disease (AD), and amyloid precursor protein (APP) is the hallmark of AD. OxyR could affect APP modulation via the autophagy pathway. Here, we have reported that OxyR promotes autophagy signaling and attenuates APP production in primary cortical astrocytes based on immunofluorescence and immunoblotting assay results. Co-treatment with the late-stage autophagy inhibitor chloroquine (CQ) and OxyR caused significantly higher microtubule-associated protein light chain 3 (LC3)-II protein levels and LC3 puncta counts, demonstrating that OxyR stimulated autophagic flux. We also found that OxyR significantly reduced the levels of the autophagy substrate p62/SQSTM1, and p62 levels were significantly augmented by co-treatment with OxyR and CQ, because of the impaired deficiency of p62 in autolysosome. Likewise, pretreatment with the autophagy inhibitor, 3-methyladenine (3-MA), resulted in significantly fewer OxyR-induced LC3 puncta and lower LC3-II expression, suggesting that OxyR-mediated autophagy was dependent on the class III PI3-kinase pathway. In contrast, OxyR caused significantly lower LC3-II protein expression when pretreated with compound C, an AMP-activated protein kinase (AMPK) inhibitor, indicating that AMPK signaling regulated the OxyR-induced autophagic pathway. Additionally, co-treatment with OxyR with rapamycin intended to inhibit the mammalian target of rapamycin (mTOR) caused significantly lower levels of phospho-S6 ribosomal protein (pS6) and higher LC3-II expression, implying that OxyR-mediated autophagy was dependent on the mTOR pathway. Conversely, OxyR treatment significantly upregulated unc-51-like autophagy activating kinase 1 (ULK1) expression, and ULK1 small interfering RNAs (siRNA) caused significantly lower OxyR-induced LC3 puncta counts and LC3-II expression, indicating that ULK1 was essential for initiating OxyR-induced autophagy. However, we found that OxyR treatment astrocytes significantly increased the expression of lysosome-associated membrane protein 1 (LAMP1). Finally, we established a stress-induced APP production model using corticosterone (CORT) in cortical astrocytes, which produced significantly more APP than the equivalent using dexamethasone (DEX). In our experiment we found that CORT-induced APP production was significantly attenuated by OxyR through the autophagy pathway. Therefore, our study reveals that OxyR regulates AMPK/ULK1/mTOR-dependent autophagy induction and APP reduction in mouse cortical astrocytes.
Collapse
|
7
|
Leláková V, Šmejkal K, Jakubczyk K, Veselý O, Landa P, Václavík J, Bobáľ P, Pížová H, Temml V, Steinacher T, Schuster D, Granica S, Hanáková Z, Hošek J. Parallel in vitro and in silico investigations into anti-inflammatory effects of non-prenylated stilbenoids. Food Chem 2019; 285:431-440. [PMID: 30797367 DOI: 10.1016/j.foodchem.2019.01.128] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 12/07/2018] [Accepted: 01/25/2019] [Indexed: 12/25/2022]
Abstract
Stilbenoids represent a large group of bioactive compounds, which occur in food and medicinal plants. Twenty-five stilbenoids were screened in vitro for their ability to inhibit COX-1, COX-2 and 5-LOX. Piceatannol and pinostilbene showed activity comparable to the zileuton and ibuprofen, respectively. The anti-inflammatory potential of stilbenoids was further evaluated using THP-1 human monocytic leukemia cell line. Tests of the cytotoxicity on the THP-1 and HCT116 cell lines showed very low toxic effects. The tested stilbenoids were evaluated for their ability to attenuate the LPS-stimulated activation of NF-κB/AP-1. Most of the tested substances reduced the activity of NF-κB/AP-1 and later attenuated the expression of TNF-α. The effects of selected stilbenoids were further investigated on inflammatory signaling pathways. Non-prenylated stilbenoids regulated attenuation of NF-ĸB/AP-1 activity upstream by inhibiting the phosphorylation of MAPKs. A docking study used to in silico analyze the tested compounds confirmed their interaction with NF-ĸB, COX-2 and 5-LOX.
Collapse
Affiliation(s)
- Veronika Leláková
- Department of Natural Drugs, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic; Department of Molecular Biology and Pharmaceutical Biotechnology, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic
| | - Karel Šmejkal
- Department of Natural Drugs, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic.
| | - Karolina Jakubczyk
- Laboratory of Plant Biotechnologies, Institute of Experimental Botany, Czech Academy of Sciences, Rozvojová 263, 16502 Prague, Czech Republic
| | - Ondřej Veselý
- Laboratory of Plant Biotechnologies, Institute of Experimental Botany, Czech Academy of Sciences, Rozvojová 263, 16502 Prague, Czech Republic; Department of Quality of Agricultural Products, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcka129, 165 21 Prague 6 - Suchdol, Czech Republic
| | - Přemysl Landa
- Laboratory of Plant Biotechnologies, Institute of Experimental Botany, Czech Academy of Sciences, Rozvojová 263, 16502 Prague, Czech Republic
| | - Jiří Václavík
- Department of Natural Drugs, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic
| | - Pavel Bobáľ
- Department of Chemical Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic
| | - Hana Pížová
- Department of Chemical Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic
| | - Veronika Temml
- Department of Pharmacy/Pharmacognosy and Center for Molecular Biosciences (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Theresa Steinacher
- Department of Pharmacy/Pharmaceutical Chemistry and Center for Molecular Biosciences (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Daniela Schuster
- Institute of Pharmacy, Department of Pharmaceutical and Medicinal Chemistry, Paracelsus Medical University Salzburg, Strubergasse 21, 5020 Salzburg, Austria
| | - Sebastian Granica
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Zuzana Hanáková
- Department of Natural Drugs, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic
| | - Jan Hošek
- Department of Molecular Biology and Pharmaceutical Biotechnology, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic
| |
Collapse
|
8
|
Lee HJ, Feng JH, Sim SM, Lim SS, Lee JY, Suh HW. Effects of resveratrol and oxyresveratrol on hippocampal cell death induced by kainic acid. Anim Cells Syst (Seoul) 2019; 23:246-252. [PMID: 31489245 PMCID: PMC6711029 DOI: 10.1080/19768354.2019.1620853] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 04/25/2019] [Accepted: 05/15/2019] [Indexed: 12/26/2022] Open
Abstract
In the present study, we have examined the possible neuroprotective effects of resveratrol and oxyresveratrol against kainic-acid (KA)-induced hippocampal neuronal cell death. Either resveratrol or oxyresvertrol was orally administered 30 min prior to intracerebroventricular (i.c.v.) administration with KA (0.05 μg). Oral pretreatment with oxyresveratrol (50 mg/kg) significantly protected KA-induced hippocampal CA3 neuronal cell death. However, the same dose (50 mg/kg) or a higher dose (100 mg/kg) pretreatment with resveratrol did not affect KA-induced hippocampal neuronal cell death. Furthermore, the i.c.v. pretreatment with 30 μg of oxyresveratrol or resveratrol did not show the protective effect against KA-induced hippocampal neuronal cell death. In the immunohistochemical analysis, FoxO3a and pFoxO3a expressions in the hippocampal CA3 region were significantly increased 30 min after KA administration. Oral pretreatment with oxyresveratrol (50 mg/kg) significantly reduced KA-induced Forkhead homeobox type O3a (FoxO3a) and pFoxO3a expression in CA3 region of the hippocampus, suggesting that oxyresveratrol may exert a neuroprotective effect against KA-induced hippocampal neuronal cell death by reducing the levels of FoxO3a and pFoxO3a protein expression in the hippocampal CA3 region. Furthermore, it is suggested that the neuroprotective effect of orally administered oxyresveratrol against KA-induced neurotoxicity might be possibly mediated by some metabolites rather than direct action of oxyresveratrol on the central nervous system.
Collapse
Affiliation(s)
- Hee-Jung Lee
- Department of Pharmacology, Institute of Natural Medicine, College of Medicine Hallym University, Chuncheon, Republic of Korea
| | - Jing-Hui Feng
- Department of Pharmacology, Institute of Natural Medicine, College of Medicine Hallym University, Chuncheon, Republic of Korea
| | - Su-Min Sim
- Department of Pharmacology, Institute of Natural Medicine, College of Medicine Hallym University, Chuncheon, Republic of Korea
| | - Soon-Sung Lim
- Department of Food Science and Nutrition, Hallym University, Chuncheon, Republic of Korea
| | - Jae-Yong Lee
- Department of Biochemistry, College of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Hong-Won Suh
- Department of Pharmacology, Institute of Natural Medicine, College of Medicine Hallym University, Chuncheon, Republic of Korea
| |
Collapse
|
9
|
Aziz RS, Siddiqua A, Shahzad M, Shabbir A, Naseem N. Oxyresveratrol ameliorates ethanol-induced gastric ulcer via downregulation of IL-6, TNF-α, NF-ĸB, and COX-2 levels, and upregulation of TFF-2 levels. Biomed Pharmacother 2018; 110:554-560. [PMID: 30530291 DOI: 10.1016/j.biopha.2018.12.002] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 11/27/2018] [Accepted: 12/02/2018] [Indexed: 12/17/2022] Open
Abstract
Oxyresveratrol, an active ingredient of Artocarpus lakoocha, is known to possess anti-inflammatory and immunomodulatory properties. Current study investigates the immunomodulatory effect of oxyresveratrol in mouse model of ethanol-induced ulcer. Anti-ulcer effect was determined using histopathological evaluation (H&E staining) and different tests like, gastric ulcer scoring, ulcer index, total acid secretion, and gastric pH. The mRNA expression levels of interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), nuclear factor-kappaB (NF-ĸB), cyclooxygenase-1 (COX-1), cyclooxygenase-2 (COX-2) and trefoil factor 2 (TFF-2) were evaluated using reverse transcription polymerase chain reaction (RT-PCR). The data showed marked percentage inhibition of erosion, hemorrhage, fibrinoid necrosis, inflammatory infiltrate, and ulcer in low (30 mg/kg b.w.) and high dose (50 mg/kg b.w.) groups of oxyresveratrol. Treatment with oxyresveratrol inhibited ulcer score and ulcer index as compared with disease control group. Oxyresveratrol significantly increased gastric pH (P < 0.001) and attenuated total acid (P < 0.001) secretion. RT-PCR analysis showed significant suppression in the mRNA expression levels of IL-6 (P < 0.001), TNF-α (P < 0.01), NF-ĸB (P < 0.001), and COX-2 (P < 0.05) in oxyresveratrol treated groups, while COX-1 expression levels were found unaltered. Treatment with oxyresveratrol significantly elevated (P < 0.01) the expression levels of cytoprotective TFF-2 levels. Similar Immunomodulatory and anti-ulcer effects were found with ranitidine treatment, which was used as a reference drug. In conclusion, oxyresveratrol possess significant anti-ulcer property which might be attributed to attenuated expression levels of IL-6, TNF-α, NF-ĸB, and COX-2 and elevated expression levels of TFF-2.
Collapse
Affiliation(s)
- Rao Salman Aziz
- Department of Pharmacology, University of Health Sciences, Lahore, Pakistan
| | - Arfah Siddiqua
- Pharmacology section, Faculty of Pharmacy, The University of Lahore, Lahore, Pakistan
| | - Muhammad Shahzad
- Department of Pharmacology, University of Health Sciences, Lahore, Pakistan.
| | - Arham Shabbir
- Department of Pharmacy, The University of Lahore-Gujrat campus, Gujrat, Pakistan.
| | - Nadia Naseem
- Department of Morbid Anatomy & Histopathology, University of Health Sciences, Lahore, Pakistan
| |
Collapse
|
10
|
Kuk EB, Jo AR, Oh SI, Sohn HS, Seong SH, Roy A, Choi JS, Jung HA. Anti-Alzheimer’s disease activity of compounds from the root bark of Morus alba L. Arch Pharm Res 2017; 40:338-349. [DOI: 10.1007/s12272-017-0891-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 01/09/2017] [Indexed: 12/11/2022]
|
11
|
Li Y, Huang L, Sun J, Wei X, Wen J, Zhong G, Huang M, Bi H. Mulberroside A suppresses PXR-mediated transactivation and gene expression of P-gp in LS174T cells. J Biochem Mol Toxicol 2016; 31. [DOI: 10.1002/jbt.21884] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 11/01/2016] [Accepted: 11/11/2016] [Indexed: 11/05/2022]
Affiliation(s)
- Yuhua Li
- Department of Pharmacy; The First Affiliated Hospital of Nanchang University; Nanchang 330006 People's Republic of China
- Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 People's Republic of China
| | - Ling Huang
- School of Pharmaceutical Sciences; Hainan Medical University; Haikou 571199 People's Republic of China
| | - Jiahong Sun
- Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 People's Republic of China
| | - Xiaohua Wei
- Department of Pharmacy; The First Affiliated Hospital of Nanchang University; Nanchang 330006 People's Republic of China
| | - Jinhua Wen
- Department of Pharmacy; The First Affiliated Hospital of Nanchang University; Nanchang 330006 People's Republic of China
| | - Guoping Zhong
- Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 People's Republic of China
| | - Min Huang
- Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 People's Republic of China
| | - Huichang Bi
- Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 People's Republic of China
| |
Collapse
|
12
|
Joung DK, Mun SH, Choi SH, Kang OH, Kim SB, Lee YS, Zhou T, Kong R, Choi JG, Shin DW, Kim YC, Lee DS, Kwon DY. Antibacterial activity of oxyresveratrol against methicillin-resistant Staphylococcus aureus and its mechanism. Exp Ther Med 2016; 12:1579-1584. [PMID: 27588079 DOI: 10.3892/etm.2016.3486] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 10/22/2015] [Indexed: 11/06/2022] Open
Abstract
Oxyresveratrol (ORV) is a naturally occurring compound found in mulberries that exhibits a wide spectrum of biological activities. However, the underlying mechanism of the action of ORV against the methicillin-resistant S. aureus (MRSA) pathogen has not yet been reported. MRSA is multidrug-resistant, causing skin and other types of infections. The aim of the present study was to examine the antimicrobial activity of ORV and the underlying mechanism of its action on MRSA. The antibacterial activity of ORV was evaluated using a minimum inhibitory concentration (MIC) assay, and the mechanism of its antibacterial action on S. aureus was investigated using a combination of ORV with detergent, ATPase inhibitors and peptidoglycan (PGN). In addition, the survival characteristics and changes in MRSA morphology were monitored using transmission electron microscopy (TEM). The MIC value of ORV against all S. aureus strains was found to be 125 µg/ml. The optical density at 600 nm of each suspension treated using a combination of ORV with Triton X-100, N,N'-dicyclohexylcarbodiimide or sodium azide was reduced by 68.9-89.8% compared with the value upon treatment with ORV alone. In the ORV and PGN combination assay, direct binding of ORV with PGN from S. aureus was evident. Furthermore, TEM examination of MRSA treated with ORV showed alterations in septa formation. In conclusion, these results showed that ORV has a strong antibacterial effect against S. aureus, mainly by increasing membrane permeability and inhibiting ATPase when combined with other drugs.
Collapse
Affiliation(s)
- Dae-Ki Joung
- Department of Oriental Pharmacy, College of Pharmacy, Wonkwang-Oriental Medicines Research Institute, Institute of Biotechnology, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Su-Hyun Mun
- Department of Oriental Pharmacy, College of Pharmacy, Wonkwang-Oriental Medicines Research Institute, Institute of Biotechnology, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Sung-Hoon Choi
- Department of Oriental Pharmacy, College of Pharmacy, Wonkwang-Oriental Medicines Research Institute, Institute of Biotechnology, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Ok-Hwa Kang
- Department of Oriental Pharmacy, College of Pharmacy, Wonkwang-Oriental Medicines Research Institute, Institute of Biotechnology, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Sung-Bae Kim
- Department of Oriental Pharmacy, College of Pharmacy, Wonkwang-Oriental Medicines Research Institute, Institute of Biotechnology, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Young-Seob Lee
- Department of Herbal Crop Research, National Institute of Horticultural and Herbal Science, Rural Development Administration, Eumsung, Chungbuk 369-873, Republic of Korea
| | - Tian Zhou
- Department of Oriental Pharmacy, College of Pharmacy, Wonkwang-Oriental Medicines Research Institute, Institute of Biotechnology, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Ryong Kong
- Department of Oriental Pharmacy, College of Pharmacy, Wonkwang-Oriental Medicines Research Institute, Institute of Biotechnology, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Jang-Gi Choi
- Department of Oriental Pharmacy, College of Pharmacy, Wonkwang-Oriental Medicines Research Institute, Institute of Biotechnology, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Dong-Won Shin
- Department of Oriental Medicine Resources, Sunchon National University, Suncheon, Jeonnam 540-742, Republic of Korea
| | - Youn-Chul Kim
- Standardized Material Bank for New Botanical Drugs, College of Pharmacy, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Dong-Sung Lee
- Standardized Material Bank for New Botanical Drugs, College of Pharmacy, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Dong-Yeul Kwon
- Department of Oriental Pharmacy, College of Pharmacy, Wonkwang-Oriental Medicines Research Institute, Institute of Biotechnology, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea
| |
Collapse
|
13
|
Ding B, Lv Y, Zhang YQ. Anti-tumor effect of morusin from the branch bark of cultivated mulberry in Bel-7402 cells via the MAPK pathway. RSC Adv 2016. [DOI: 10.1039/c5ra21321e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
In this experiment, the morusin separated from the branch bark of cultivated mulberry, an edible medicinal plant, is used to study the inhibition of morusin in the human hepatocellular carcinoma cell line Bel-7402.
Collapse
Affiliation(s)
- Biao Ding
- Silk Biotechnology Laboratory
- School of Basic Medical and Biological Sciences
- Soochow University
- Suzhou 215123
- P. R. China
| | - Yi Lv
- Silk Biotechnology Laboratory
- School of Basic Medical and Biological Sciences
- Soochow University
- Suzhou 215123
- P. R. China
| | - Yu-Qing Zhang
- Silk Biotechnology Laboratory
- School of Basic Medical and Biological Sciences
- Soochow University
- Suzhou 215123
- P. R. China
| |
Collapse
|
14
|
Park JH, Jung YJ, Jung JW, Shrestha S, Han D, Lim DW, Baek NI. Two new isoarylbenzofuran diglucosides from the root bark of Morus alba. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2014; 17:357-363. [PMID: 25401999 DOI: 10.1080/10286020.2014.971775] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Accepted: 09/28/2014] [Indexed: 06/04/2023]
Abstract
Two new arylbenzofuran diglucopyranosides, (2″R)-(-)-moracin-O-5',3″-β-D-diglucopyranoside (1) and (2″R)-(-)-moracin-P-5',2″-β-d-diglucopyranoside (2), along with known arylbenzofurans, moracin M 6-β-D-glucopyranoside (3), and an isomeric mixture of R-(-)-moracin O (4) and R-(-)-moracin P (5), were isolated from the root bark of Morus alba L. The structure of the compounds was elucidated based on mass spectrometry, infrared, 1D and 2D nuclear magnetic resonance spectroscopic data.
Collapse
Affiliation(s)
- Ji-Hae Park
- a Graduate School of Biotechnology, Kyung Hee University , Yongin 446-701 , Republic of Korea
| | | | | | | | | | | | | |
Collapse
|
15
|
Rivière C, Krisa S, Péchamat L, Nassra M, Delaunay JC, Marchal A, Badoc A, Waffo-Téguo P, Mérillon JM. Polyphenols from the stems of Morus alba and their inhibitory activity against nitric oxide production by lipopolysaccharide-activated microglia. Fitoterapia 2014; 97:253-60. [DOI: 10.1016/j.fitote.2014.06.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2014] [Revised: 05/29/2014] [Accepted: 06/02/2014] [Indexed: 01/05/2023]
|
16
|
Park JH, Jung YJ, Jung JW, Shrestha S, Lim DW, Han D, Baek NI. A new flavonoid glycoside from the root bark ofMorus albaL. Nat Prod Res 2014; 28:1859-63. [DOI: 10.1080/14786419.2014.951852] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
17
|
Down-regulation of P-gp expression and function after Mulberroside A treatment: Potential role of protein kinase C and NF-kappa B. Chem Biol Interact 2014; 213:44-50. [DOI: 10.1016/j.cbi.2014.02.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 01/22/2014] [Accepted: 02/05/2014] [Indexed: 11/20/2022]
|
18
|
Choi SW, Jang YJ, Lee YJ, Leem HH, Kim EO. Analysis of Functional Constituents in Mulberry (Morus alba L.) Twigs by Different Cultivars, Producing Areas, and Heat Processings. Prev Nutr Food Sci 2014; 18:256-62. [PMID: 24551827 PMCID: PMC3925215 DOI: 10.3746/pnf.2013.18.4.256] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Accepted: 12/18/2013] [Indexed: 11/06/2022] Open
Abstract
Four functional constituents, oxyresveratrol 3'-O-β-D-glucoside (ORTG), oxyresveratrol (ORT), t-resveratrol (RT), and moracin (MC) were isolated from the ethanolic extract of mulberry (Morus alba L.) twigs by a series of isolation procedures, including solvent fractionation, and silica-gel, ODS-A, and Sephadex LH-20 column chromatographies. Their chemical structures were identified by NMR and FABMS spectral analysis. Quantitative changes of four phytochemicals in mulberry twigs were determined by HPLC according to cultivar, producing area, and heat processing. ORTG was a major abundant compound in the mulberry twigs, and its levels ranged from 23.7 to 105.5 mg% in six different mulberry cultivars. Three other compounds were present in trace amounts (<1 mg/100 g) or were not detected. Among mulberry cultivars examined, "Yongcheon" showed the highest level of ORTG, whereas "Somok" had the least ORTG content. Levels of four phytochemicals in the mulberry twigs harvested in early September were higher than those harvested in early July. Levels of ORTG and ORT in the "Cheongil" mulberry twigs produced in the Uljin area were higher than those produced in other areas. Generally, levels of ORTG and ORT in mulberry twigs decreased with heat processing, such as steaming, and microwaving except roasting, whereas those of RT and MC did not considerably vary according to heat processing. These results suggest that the roasted mulberry twigs may be useful as potential sources of functional ingredients and foods.
Collapse
Affiliation(s)
- Sang Won Choi
- Department of Food Science and Nutrition, Catholic University of Daegu, Gyeongbuk 712-702, Korea
| | - Yeon Jeong Jang
- Department of Food Science and Nutrition, Catholic University of Daegu, Gyeongbuk 712-702, Korea
| | - Yu Jin Lee
- Department of Food Science and Nutrition, Catholic University of Daegu, Gyeongbuk 712-702, Korea
| | - Hyun Hee Leem
- Department of Natural Product, Institute for Korea Traditional Medical Industry, Gyeongbuk 712-260, Korea
| | - Eun Ok Kim
- Functional Food Center, Korea Institute of Science and Technology (KIST) Gangneung Institute, Gangwon 210-340, Korea
| |
Collapse
|
19
|
Xu L, Liu C, Xiang W, Chen H, Qin X, Huang X. Advances in the Study of Oxyresveratrol. INT J PHARMACOL 2013. [DOI: 10.3923/ijp.2014.44.54] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
20
|
Hong SS, Hong S, Lee HJ, Mar W, Lee D. A New Prenylated Flavanone from the Root Bark of Morus. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.8.2528] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
21
|
Deng H, He X, Xu Y, Hu X. Oxyresveratrol from Mulberry as a dihydrate. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o1318-9. [PMID: 22590220 PMCID: PMC3344458 DOI: 10.1107/s1600536812014018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Accepted: 03/31/2012] [Indexed: 01/02/2023]
Abstract
The title compound {systematic name: 4-[(E)-2-(3,5-dihydroxyphenyl)ethenyl]benzene-1,3-diol dihydrate}, C14H12O4·2H2O, a derivative of resveratrol, was isolated from mulberry. The linking C=C double bond has a trans conformation and allows the formation of a conjugated system throughout the molecule. The dihedral angle between the benzene rings is 9.39 (9)°. In the crystal, molecules are connected into a three-dimensional architecture through O—H⋯O hydrogen bonds between hydroxy groups of oxyresveratrol and solvent water molecules.
Collapse
|
22
|
Lee HJ, Lyu DH, Koo U, Nam KW, Hong SS, Kim KO, Kim KH, Lee D, Mar W. Protection of prenylated flavonoids from Mori Cortex Radicis (Moraceae) against nitric oxide-induced cell death in neuroblastoma SH-SY5Y cells. Arch Pharm Res 2012; 35:163-70. [PMID: 22297755 DOI: 10.1007/s12272-012-0118-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2010] [Revised: 07/25/2011] [Accepted: 08/01/2011] [Indexed: 11/29/2022]
Abstract
Seven prenylated flavanoids, licoflavone C (1), cyclomulberrin (2), neocyclomorusin (3), sanggenon I (4), morusin (5), kuwanon U (6) and kuwanon E (7), and three 2-arylbenzofurans, moracin P (8), moracin O (9), and mulberrofuran Q (10) were isolated from the MeOH extract of Mori Cortex Radicis. Among these, compounds 2-7 enhanced cell viability in a dose-dependent manner against sodium nitroprusside-induced cell death in neuroblastoma SH-SY5Y cells, which was measured by MTT reduction assay (EC(50) values of 4.4, 5.6, 8.0, 6.4, 8.7, and 11.9 μg/mL, respectively). Among 10 compounds, C-3 prenylated flavones (2, 3, and 5) and prenylated flavanones (4, 6, and 7) showed cell protection. However, compound 1 which lacks the prenyl group at C-3 and three 2-arylbenzofurans (8-10) did not show protective effect. The order of cell protection was as follow: C-3 prenylated flavones (2, 3, and 5) > prenylated flavanones (4, 6, and 7) > 2-arylbenzofurans (8-10) and flavone (1). From this result, we show that some prenylated flavones and flavanones might protect neuronal cells against nitrosative stress-mediated cell death. Even though further evaluations are necessary in vitro and in vivo study, we carefully suggest that some prenylated flavonoids from Mori Cortex Radicis might protect neuronal cells from neurodegenerative diseases.
Collapse
Affiliation(s)
- Hak Ju Lee
- Korea Forest Research Institute, Seoul 130-712, Korea
| | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Lee HJ, Lyu DH, Koo U, Lee SJ, Hong SS, Kim K, Kim KH, Lee D, Mar W. Inhibitory effect of 2-arylbenzofurans from the Mori Cortex Radicis (Moraceae) on oxygen glucose deprivation (OGD)-induced cell death of SH-SY5Y cells. Arch Pharm Res 2011; 34:1373-80. [PMID: 21910060 DOI: 10.1007/s12272-011-0818-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2010] [Revised: 04/11/2011] [Accepted: 05/24/2011] [Indexed: 10/17/2022]
Abstract
Three known 2-arylbenzofurans, moracin P (1), moracin O (2) and mulberrofuran Q (3) were isolated from the MeOH extract of the Mori Cortex Radicis. These compounds 1-3 enhanced cell viability in dose-dependent manner against oxygen-glucose deprivation (OGD)-induced cell death in neuroblastoma SH-SY5Y cells, which was measured by MTT reduction assay. (EC(50) values of 10.4, 12.6, and 15.9 μM, respectively). In addition, the compounds 1-3 were examined for their inhibitory effect on OGD-induced ROS production by FACS analysis. We observed these compounds reduced ROS production in OGD-induced cell death (IC(50) values of 1.9, 0.3 and 12.1 μM, respectively). Consequently, reactive oxygen species (ROS) were overexpressed in OGD-induced cells and all three compounds reduced ROS induced by OGD in dosedependent manner. Taken together, compounds 1-3 might protect neuronal cell death against the oxidative stress induced by OGD, though further studies in vitro and in vivo models are necessary.
Collapse
Affiliation(s)
- Hak Ju Lee
- Korea Forest Research Institute, Seoul 130-712, Korea
| | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Piao SJ, Chen LX, Kang N, Qiu F. Simultaneous determination of five characteristic stilbene glycosides in root bark of Morus albus L. (Cortex Mori) using high-performance liquid chromatography. PHYTOCHEMICAL ANALYSIS : PCA 2011; 22:230-235. [PMID: 21046687 DOI: 10.1002/pca.1270] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2010] [Revised: 06/17/2010] [Accepted: 06/17/2010] [Indexed: 05/30/2023]
Abstract
INTRODUCTION Cortex Mori, one of the well-known traditional Chinese herbal medicines, is derived from the root bark of Morus alba L. according to the China Pharmacopeia. Stilbene glycosides are the main components isolated from aqueous extracts of Morus alba and their content varies depending on where Cortex Mori was collected. We have established a qualitative and quantitative method based on the bioactive stilbene glycosides for control of the quality of Cortex Mori from different sources. OBJECTIVE To develop a high-performance liquid chromatography coupled with ultraviolet absorption detection for simultaneous quantitative determination of five major characteristic stilbene glycosides in 34 samples of the root bark of Morus alba L. (Cortex Mori) from different sources. METHODOLOGY The analysis was performed on an ODS column using methanol-water-acetic acid (18: 82: 0.1, v/v/v) as the mobile phase and the peaks were monitored at 320 nm. RESULTS All calibration curves showed good linearity (r ≥ 0.9991) within test ranges. This method showed good repeatability for the quantification of these five components in Cortex Mori with intra- and inter-day standard deviations less than 2.19% and 1.45%, respectively. CONCLUSION The validated method was successfully applied to quantify the five investigated components, including a pair of cis-trans-isomers 1 and 2 and a pair of isomers 4 and 5 in 34 samples of Cortex Mori from different sources.
Collapse
Affiliation(s)
- Shu-juan Piao
- Department of Natural Products Chemistry, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning Province, PR China
| | | | | | | |
Collapse
|
25
|
Huang H, Chen G, Lu Z, Zhang J, Guo DA. Identification of seven metabolites of oxyresveratrol in rat urine and bile using liquid chromatography/tandem mass spectrometry. Biomed Chromatogr 2011; 24:426-32. [PMID: 19662623 DOI: 10.1002/bmc.1309] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Oxyresveratrol (trans-2,4,3',5'-tetrahydroxystilbene) is a major compound isolated from Smilax china, a Chinese herbal medicine. The rat urine and bile samples were pretreated by solid-phase extraction method after oral administration at a dose of 100 mg/kg of oxyresveratrol. Seven metabolites were identified by LC-MS/MS method with electrospray ionization in negative ion mode. The results indicated that main metabolites of oxyresveratrol were monoglucuronided and monosulfated oxyresveratrol. Based on the results, the metabolic pathway of oxyresveratrol in rat urine and bile was proposed.
Collapse
Affiliation(s)
- Huilian Huang
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 199 Guo Shoujing Road, Zhangjiang, Shanghai, People's Republic of China
| | | | | | | | | |
Collapse
|
26
|
TADA A, ISHIZUKI K, KOYAMA A, FUKAI T, AKIYAMA T, YAMAZAKI T, KAWAMURA Y. Examination of Original Plant of Mulberry Bark Extract, a Natural Food Additive, Based on Composition of the Constituents. Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) 2011; 52:258-64. [DOI: 10.3358/shokueishi.52.258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
27
|
Kim JK, Kim M, Cho SG, Kim MK, Kim SW, Lim YH. Biotransformation of mulberroside A from Morus alba results in enhancement of tyrosinase inhibition. J Ind Microbiol Biotechnol 2010; 37:631-7. [PMID: 20411402 DOI: 10.1007/s10295-010-0722-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2010] [Accepted: 04/02/2010] [Indexed: 11/30/2022]
Abstract
Mulberroside A, a glycosylated stilbene, was isolated and identified from the ethanol extract of the roots of Morus alba. Oxyresveratrol, the aglycone of mulberroside A, was produced by enzymatic hydrolysis of mulberroside A using the commercial enzyme Pectinex. Mulberroside A and oxyresveratrol showed inhibitory activity against mushroom tyrosinase with an IC(50) of 53.6 and 0.49 microM, respectively. The tyrosinase inhibitory activity of oxyresveratrol was thus approximately 110-fold higher than that of mulberroside A. Inhibition kinetics showed mulberroside A to be a competitive inhibitor of mushroom tyrosinase with L-tyrosine and L-DOPA as substrate. Oxyresveratrol showed mixed inhibition and noncompetitive inhibition against L-tyrosine and L-DOPA, respectively, as substrate. The results indicate that the tyrosinase inhibitory activity of mulberroside A was greatly enhanced by the bioconversion process.
Collapse
Affiliation(s)
- Jeong-Keun Kim
- Department of Chemical Engineering and Biotechnology, Korea Polytechnic University, Shihung-si, Kyunggi-do 429-793, South Korea
| | | | | | | | | | | |
Collapse
|
28
|
Dai LM, Tang J, Li HL, Shen YH, Peng CY, Zhang WD. A new stilbene glycoside from the n-butanol fraction of Veratrum dahuricum. Chem Nat Compd 2009. [DOI: 10.1007/s10600-009-9352-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
29
|
Huang HL, Zhang JQ, Chen GT, Lu ZQ, Sha N, Guo DA. Simultaneous Determination of Oxyresveratrol and Resveratrol in Rat Bile and Urine by HPLC after Oral Administration of Smilax china Extract. Nat Prod Commun 2009. [DOI: 10.1177/1934578x0900400617] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Oxyresveratrol ( trans-2,4,3′,5′-tetrahydroxystilbene, OXY) and resveratrol ( trans-3,5,4′-trihydroxystilbene, RES) are the two most important constituents of the traditional Chinese medicine Smilax china. A reversed-phase high-performance liquid chromatographic method was developed to determine OXY and RES in rat bile and urine after oral administration of Smilax china extract. The biological samples were analyzed by HPLC on Aglient Zorbax SB-C18 column (250 × 4.6 mm, 5 μm) at a wavelength 320 nm and at a flow rate of 1.0 mL/min. The method was accurate and reproducible for determination. The cumulative excretion of OXY and RES was 0.29% and 0.97% in bile samples, 0.84% and 0.65% in urine samples, respectively.
Collapse
Affiliation(s)
- Hui-lian Huang
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, P.R. China
- Key Laboratory of Modern Preparation of TCM, JiangXi University Of Traditional Chinese Medicine, Ministry of Education, Nanchang 330004, P.R. China
| | - Jin-qiang Zhang
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, P.R. China
| | - Guang-tong Chen
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, P.R. China
| | - Zhi-qiang Lu
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, P.R. China
| | - Na Sha
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, P.R. China
| | - De-an Guo
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, P.R. China
| |
Collapse
|
30
|
Piao SJ, Qiu F, Chen LX, Pan Y, Dou DQ. New Stilbene, Benzofuran, and Coumarin Glycosides fromMorus alba. Helv Chim Acta 2009. [DOI: 10.1002/hlca.200800275] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
31
|
Huang H, Zhang J, Chen G, Lu Z, Wang X, Sha N, Shao B, Li P, Guo DA. High performance liquid chromatographic method for the determination and pharmacokinetic studies of oxyresveratrol and resveratrol in rat plasma after oral administration of Smilax china extract. Biomed Chromatogr 2008; 22:421-7. [PMID: 18004743 DOI: 10.1002/bmc.950] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A sensitive and simple HPLC method has been developed and validated for the determination of oxyresveratrol (trans-2,4,3',5'-tetrahydroxystilbene, OXY) and resveratrol (trans-3,5,4'-trihydroxystilbene, RES) in rat plasma. The plasma samples were extracted with ethyl acetate and analyzed using HPLC on an Aglient Zorbax SB-C(18) column (250 x 4.6 mm, 5 microm) at a wavelength 320 nm, with a linear gradient of (A) acetonitrile and (B) 0.5% aqueous acetic acid (v/v), at a flow rate of 1.0 mL/min. The method was linear over the range of 0.1265-25.3 microg/mL for OXY and 0.117-23.4 microg/mL for RES. The extraction recovery for OXY, RES and internal standard ranged from 71.1 to 88.3%. The intra- and inter-day precisions were better than 10%, and the accuracy ranged from 89 to 108%. The validated method was used to study the pharmacokinetic profiles of OXY and RES in rat plasma after oral administration of Smilax china root extract.
Collapse
Affiliation(s)
- Huilian Huang
- College of Traditional Chinese Material Medica, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Xiao K, Zhang HJ, Xuan LJ, Zhang J, Xu YM, Bai DL. Stilbenoids: Chemistry and bioactivities. BIOACTIVE NATURAL PRODUCTS (PART N) 2008. [DOI: 10.1016/s1572-5995(08)80032-4] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
33
|
Likhitwitayawuid K, Chaiwiriya S, Sritularak B, Lipipun V. Antiherpetic flavones from the heartwood of Artocarpus gomezianus. Chem Biodivers 2007; 3:1138-43. [PMID: 17193228 DOI: 10.1002/cbdv.200690115] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The heartwood of Artocarpus gomezianus was investigated for anti-herpetic principles. During the course of the separation, a new compound, artogomezianone (1), was isolated, along with the known compounds cycloartocarpin (2), isocyclomorusin (3), artocarpin (4), norcycloartocarpin (5), norartocarpetin (6), and oxyresveratrol (7). Evaluation of these isolates for inhibitory effects against herpes simplex virus (HSV) types 1 and 2 was carried out using the inactivation method. Compounds 2, 3, 6 and 7 showed moderate activities against both types of HSV, while 1, 4 and 5 were basically inactive.
Collapse
Affiliation(s)
- Kittisak Likhitwitayawuid
- Department of Pharmacognosy, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand.
| | | | | | | |
Collapse
|
34
|
Mouihate A, Horn TF, Pittman QJ. Oxyresveratrol dampens neuroimmune responses in vivo: a selective effect on TNF-α. Am J Physiol Regul Integr Comp Physiol 2006; 291:R1215-21. [PMID: 16809485 DOI: 10.1152/ajpregu.00250.2006] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Consumption of nutrients rich in hydroxystilbenes has been promoted because of their health benefits, including dampening of inflammatory responses. However, few studies have examined their effects in vivo. Here, we show that the hydroxystilbene oxyresveratrol (trans-2,3′,4,5′-tetrahydroxystilbene: o-RES) blocked hypothermia but caused no significant effect on the febrile response to the immune stimulus, bacterial LPS in rats. This was associated with a reduction in the LPS-induced plasma cytokine, tumor necrosis factor (TNF)-α, but not IL-6. Both IL-6-stimulated STAT-3 and LPS-induced cycoloxygenase-2 expression in the hypothalamus were not affected by o-RES. These data strongly suggest that the o-RES-induced dampening of neuroimmune responses is largely due to its inhibitory effect on TNF-α production. In contrast to in vitro experiments, o-RES has no direct effect on NF-κB signaling pathway in vivo. The specific inhibitory effect of o-RES on TNF-α opens new avenues for the clinical use of o-RES in pathological conditions where excessive production of TNF-α is deleterious.
Collapse
Affiliation(s)
- A Mouihate
- Hotchkiss Brain Institute, Dept. of Physiology and Biophysics, Faculty of Medicine, Univ. of Calgary, 3330 Hospital Dr., NW, Calgary, Alberta T2N 4N1, Canada.
| | | | | |
Collapse
|
35
|
Andrabi SA, Spina MG, Lorenz P, Ebmeyer U, Wolf G, Horn TFW. Oxyresveratrol (trans-2,3′,4,5′-tetrahydroxystilbene) is neuroprotective and inhibits the apoptotic cell death in transient cerebral ischemia. Brain Res 2004; 1017:98-107. [PMID: 15261105 DOI: 10.1016/j.brainres.2004.05.038] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/11/2004] [Indexed: 01/08/2023]
Abstract
Oxidative stress is one of the major pathological factors in the cascade that leads to cell death in cerebral ischemia. Here, we investigated the neuroprotective effect of a naturally occurring antioxidant, oxyresveratrol, to reduce brain injury after cerebral stroke. We used the transient rat middle cerebral artery occlusion (MCAO) model of brain ischemia to induce a defined brain infarction. Oxyresveratrol was given twice intraperitoneally: immediately after occlusion and at the time of reperfusion. Oxyresveratrol (10 or 20 mg/kg) significantly reduced the brain infarct volume by approximately 54% and 63%, respectively, when compared to vehicle-treated MCAO rats. Also, the neurological deficits as assessed by different scoring methods improved in oxyresveratrol-treated MCAO rats. Histological analysis of apoptotic markers in the ischemic brain area revealed that oxyresveratrol treatment diminished cytochrome c release and decreased caspase-3 activation in MCAO rats. Also, staining for apoptotic DNA showed that the number of apoptotic nuclei in ischemic brain was reduced after oxyresveratrol treatment as compared to the vehicle-treated MCAO rats. This dose-dependent neuroprotective effect of oxyresveratrol in an in vivo stroke model demonstrates that this drug may prove to be beneficial for a therapeutic strategy to limit brain injury in acute brain ischemia.
Collapse
Affiliation(s)
- Shaida A Andrabi
- Institute for Medical Neurobiology, Otto-von-Guericke University Magdeburg, Leipziger Strasse-44, Haus 36, D-39120, Magdeburg, Germany
| | | | | | | | | | | |
Collapse
|
36
|
Cai Y, Luo Q, Sun M, Corke H. Antioxidant activity and phenolic compounds of 112 traditional Chinese medicinal plants associated with anticancer. Life Sci 2004; 74:2157-84. [PMID: 14969719 PMCID: PMC7126989 DOI: 10.1016/j.lfs.2003.09.047] [Citation(s) in RCA: 1329] [Impact Index Per Article: 66.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2003] [Accepted: 09/18/2003] [Indexed: 02/07/2023]
Abstract
Cancer prevention and treatment using traditional Chinese medicines have attracted increasing interest. This study characterizes antioxidant activity and phenolic compounds of traditional Chinese medicinal plants associated with anticancer, comprising 112 species from 50 plant families. The improved ABTS•+ method was used to systematically assess the total antioxidant capacity (Trolox equivalent antioxidant capacity, TEAC) of the medicinal extracts. The TEAC values and total phenolic content for methanolic extracts of herbs ranged from 46.7 to 17,323 μmol Trolox equivalent/100 g dry weight (DW), and from 0.22 to 50.3 g of gallic acid equivalent/100 g DW, respectively. A positive, significant linear relationship between antioxidant activity and total phenolic content (all R2 values≥0.95) showed that phenolic compounds were the dominant antioxidant components in the tested medicinal herbs. Major types of phenolic compounds from most of the tested herbs were preliminarily identified and analyzed, and mainly included phenolic acids, flavonoids, tannins, coumarins, lignans, quinones, stilbenes, and curcuminoids. These medicinal herbs exhibited far stronger antioxidant activity and contained significantly higher levels of phenolics than common vegetables and fruits. Traditional Chinese medicinal plants associated with anticancer might be potential sources of potent natural antioxidants and beneficial chemopreventive agents.
Collapse
Affiliation(s)
- Yizhong Cai
- Department of Botany, The University of Hong Kong, Pokfulam Road, Hong Kong, PR China
| | - Qiong Luo
- College of Public Health, Wuhan University, Wuhan 430071, Hubei, PR China
| | - Mei Sun
- Department of Zoology, The University of Hong Kong, Pokfulam Road, Hong Kong, PR China
| | - Harold Corke
- Department of Botany, The University of Hong Kong, Pokfulam Road, Hong Kong, PR China
- Corresponding author. Tel.: +852-22990314; fax: +852-28583477.
| |
Collapse
|
37
|
Lorenz P, Roychowdhury S, Engelmann M, Wolf G, Horn TFW. Oxyresveratrol and resveratrol are potent antioxidants and free radical scavengers: effect on nitrosative and oxidative stress derived from microglial cells. Nitric Oxide 2003; 9:64-76. [PMID: 14623172 DOI: 10.1016/j.niox.2003.09.005] [Citation(s) in RCA: 198] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Hydroxystilbenes are naturally occurring polyphenols with protective effects against reactive oxygen and nitrogen species (ROS/RNS). Here, we investigated oxyresveratrol (OXY), which is contained in high amounts in mulberry wood, in comparison to the antioxidant resveratrol (RES). We found that OXY is a more effective scavenger for 2,2-diphenyl-1-picryl-hydrazyl (DPPH, 100 microM) used as a general free radical model, compared to RES or trans-4-hydroxystilbene (IC(50)=28.9, 38.5, and 39.6 microM, respectively). When primary glial cell cultures were loaded with the ROS/RNS-sensitive fluorochrome 2,7-dichlorodihydrofluorescein, the lowest rise in the fluorescence signal after H(2)O(2) exposure was seen when the cells were pretreated with OXY. Using 4,5-diaminofluorescein (DAF-2) to monitor free nitric oxide levels (7.7 microM NO) in a spectrofluorimetric cell-free assay, we found again that OXY (at 5 microM) is a more effective scavenger. Accordingly, cultures of the murine microglial cell line N9 and primary mixed glial cultures were used to test the drug effects of NO production upon expression of the inducible isoform of nitric oxide synthase (iNOS). We found that both compounds considerably diminished NO (nitrite) levels, RES more effectively than OXY (IC(50)=22.36 and 45.31 microM). RES but not OXY down-regulated the expression of iNOS protein, but both did not alter iNOS activity. Furthermore, OXY displayed a generally lower cytotoxicity than RES. The radical and ROS scavenging properties, as well as the lower cytotoxicity towards microglia and the known good water solubility suggest OXY as a potential protectant against ROS/RNS.
Collapse
Affiliation(s)
- Peter Lorenz
- Institute for Medical Neurobiology, Otto-von-Guericke University, Leipziger Strasse 44, D-39120, Magdeburg, Germany
| | | | | | | | | |
Collapse
|
38
|
Kanchanapoom T, Suga K, Kasai R, Yamasaki K, Kamel MS, Mohamed MH. Stilbene and 2-arylbenzofuran glucosides from the rhizomes of Schoenocaulon officinale. Chem Pharm Bull (Tokyo) 2002; 50:863-5. [PMID: 12045351 DOI: 10.1248/cpb.50.863] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Two stilbene glucosides, oxyresveratrol 2-O-beta-glucopyranoside and resveratrol 3,4'-O,O'-di-beta-D-glucopyranoside, and a 2-arylbenzofuran glucoside, schoenoside, were isolated from the rhizomes of Schoenocaulon officinale, along with five known compounds, oxyresveratrol 3'-O-beta-D-glucopyranoside, oxyresveratrol, resveratrol 3-O-beta-D-glucopyranoside, mulberroside A and moracin M 3'-O-beta-D-glucopyranoside. The structural elucidations were based on analyses of both physical and spectroscopic data.
Collapse
Affiliation(s)
- Tripetch Kanchanapoom
- Institute of Pharmaceutical Sciences, Faculty of Medicine, Hiroshima University, Japan
| | | | | | | | | | | |
Collapse
|
39
|
Orsini F, Verotta L. Stilbenes and bibenzyls with potential anticancer or chemopreventive activity. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2000; 472:169-86. [PMID: 10736625 DOI: 10.1007/978-1-4757-3230-6_15] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Affiliation(s)
- F Orsini
- Dipartimento di Chimica Organica e Industriale, Università degli Studi di Milano, Milan, Italy
| | | |
Collapse
|
40
|
Elucidation of the bioactive constituents in traditional Chinese medicine “Mori Cortex”. ACTA ACUST UNITED AC 1999. [DOI: 10.1016/s0928-3420(99)80035-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
|