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Kour P, Saha P, Sharma DK, Singh K. DNA topoisomerases as a drug target in Leishmaniasis: Structural and mechanistic insights. Int J Biol Macromol 2024; 256:128401. [PMID: 38007027 DOI: 10.1016/j.ijbiomac.2023.128401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 11/09/2023] [Accepted: 11/22/2023] [Indexed: 11/27/2023]
Abstract
Leishmaniasis, caused by a protozoan parasite, is among humanity's costliest banes, owing to the high mortality and morbidity ratio in poverty-stricken areas. To date, no vaccine is available for the complete cure of the disease. Current chemotherapy is expensive, has undesirable side effects, and faces drug resistance limitations and toxicity concerns. The substantial differences in homology between leishmanial DNA topoisomerase IB compared with the human counterparts provided a new lead in the study of the structural determinants that can be targeted. Several research groups explored this molecular target, trying to fill the therapeutic gap, and came forward with various anti-leishmanial scaffolds. This article is a comprehensive review of knowledge about topoisomerases as an anti-leishmanial drug target and their inhibitors collected over the years. In addition to information on molecular targets and reported scaffolds, the review details the structure-activity relationship of described compounds with leishmanial Topoisomerase IB. Moreover, the work also includes information about the structure of the inhibitors, showing common interacting residues with leishmanial topoisomerases that drive their mode of action towards them. Finally, in search of topoisomerase inhibitors at the stage of clinical trials, we have listed all the drugs that have been in clinical trials against leishmaniasis.
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Affiliation(s)
- Parampreet Kour
- Infectious Diseases Division, CSIR- Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Pallavi Saha
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology Banaras Hindu University, Varanasi 221005, India
| | - Deepak K Sharma
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology Banaras Hindu University, Varanasi 221005, India
| | - Kuljit Singh
- Infectious Diseases Division, CSIR- Indian Institute of Integrative Medicine, Jammu 180001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Wang W, Ige OO, Ding Y, He M, Long P, Wang S, Zhang Y, Wen X. Insights into the potential benefits of triphala polyphenols toward the promotion of resilience against stress-induced depression and cognitive impairment. Curr Res Food Sci 2023; 6:100527. [PMID: 37377497 PMCID: PMC10291000 DOI: 10.1016/j.crfs.2023.100527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 05/09/2023] [Accepted: 06/01/2023] [Indexed: 06/29/2023] Open
Abstract
In response to environmental challenges, stress is a common reaction, but dysregulation of the stress response can lead to neuropsychiatric disorders, including depression and cognitive impairment. Particularly, there is ample evidence that overexposure to mental stress can have lasting detrimental consequences for psychological health, cognitive function, and ultimately well-being. In fact, some individuals are resilient to the same stressor. A major benefit of enhancing stress resilience in at-risk groups is that it may help prevent the onset of stress-induced mental health problems. A potential therapeutic strategy for maintaining a healthy life is to address stress-induced health problems with botanicals or dietary supplements such as polyphenols. Triphala, also known as Zhe Busong decoction in Tibetan, is a well-recognized Ayurvedic polyherbal medicine comprising dried fruits from three different plant species. As a promising food-sourced phytotherapy, triphala polyphenols have been used throughout history to treat a variety of medical conditions, including brain health maintenance. Nevertheless, a comprehensive review is still lacking. Here, the primary objective of this review article is to provide an overview of the classification, safety, and pharmacokinetics of triphala polyphenols, as well as recommendations for the development of triphala polyphenols as a novel therapeutic strategy for promoting resilience in susceptible individuals. Additionally, we summarize recent advances demonstrating that triphala polyphenols are beneficial to cognitive and psychological resilience by regulating 5-hydroxytryptamine (5-HT) and brain-derived neurotrophic factor (BDNF) receptors, gut microbiota, and antioxidant-related signaling pathways. Overall, scientific exploration of triphala polyphenols is warranted to understand their therapeutic efficacy. In addition to providing novel insights into the mechanisms of triphala polyphenols for promoting stress resilience, blood brain barrier (BBB) permeability and systemic bioavailability of triphala polyphenols also need to be improved by the research community. Moreover, well-designed clinical trials are needed to increase the scientific validity of triphala polyphenols' beneficial effects for preventing and treating cognitive impairment and psychological dysfunction.
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Affiliation(s)
- Wenjun Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Olufola Oladoyin Ige
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Yi Ding
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Mengshan He
- The Academy of Chinese Health Risks, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Pan Long
- Department of Ophthalmology, The General Hospital of Western Theater Command, Chengdu, 610000, China
| | - Shaohui Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yi Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xudong Wen
- Department of Gastroenterology and Hepatology, Chengdu First People's Hospital, Chengdu, 610021, China
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Wan Saidin WA, Jantan I, Abdul Wahab SM, Jalil J, Mohd Said M, Yusoff SD, Husain K. Pharmacological activities and mechanisms of action of hypophyllanthin: A review. Front Pharmacol 2023; 13:1070557. [PMID: 36699081 PMCID: PMC9868173 DOI: 10.3389/fphar.2022.1070557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 12/23/2022] [Indexed: 01/11/2023] Open
Abstract
Hypophyllanthin is a major lignan present in various Phyllanthus species and has been used as one of the bioactive chemical markers for quality control purposes as it contributes to their diverse pharmacological activities. The objective of this study is to compile up-to-date data on the pharmacological actions and mechanisms of hypophyllanthin. This review also includes the extracts of Phyllanthus species whose pharmacological actions have been partially attributed to hypophyllanthin. The scientific findings on the compound are critically analyzed and its potential as a lead molecule for the discovery of drug candidates for the development of therapeutics to treat diverse diseases is highlighted. Data collection was mainly through the exploration of Ovid-MEDLINE, Scopus, Science Direct, and Elsevier databases. Studies conducted in vitro and in vivo showed that hypophyllanthin had potent immunomodulating properties as well as a variety of other pharmacological properties, including anti-inflammatory, hepatoprotective, anti-tumor, anti-allergic, anti-hypertensive, and phytoestrogenic properties. Several mechanisms of action on the effects of hypophyllanthin on the immune system, in cancer and other disease states, were presented to provide some insights into its pharmacological effects. Before being submitted to clinical investigations, additional animal studies utilising different animal models are necessary to analyse its bioavailability, pharmacokinetics, and pharmacodynamic properties, as well as its toxicity, to determine its efficacy and safety. Understanding its potential as a lead molecule for the discovery of therapeutic candidates, particularly for the development of therapies for inflammatory and immune-related disorders, requires an understanding of its pharmacological activities and mechanisms of action. An insight into its pharmacological activities and mechanisms of action will provide an understanding of its potential as a lead compound for the discovery of drug candidates, especially for the development of therapies for inflammatory and immune related diseases.
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Affiliation(s)
- Wan Azmira Wan Saidin
- Centre for Drug and Herbal Development, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Ibrahim Jantan
- Institute of Systems Biology, Universiti Kebangsaan Malaysia, Selangor, Malaysia
| | - Siti Mariam Abdul Wahab
- Centre for Drug and Herbal Development, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Juriyati Jalil
- Centre for Drug and Herbal Development, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Mazlina Mohd Said
- Centre for Drug and Herbal Development, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Syaratul Dalina Yusoff
- Centre for Drug and Herbal Development, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Khairana Husain
- Centre for Drug and Herbal Development, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia,*Correspondence: Khairana Husain,
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Modern Photocatalytic Strategies in Natural Product Synthesis. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2023; 120:1-104. [PMID: 36587307 DOI: 10.1007/978-3-031-11783-1_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Modern photocatalysis has proven its generality for the development and functionalization of native functionalities. To date, the field has found broad applications in diverse research areas, including the total synthesis of natural products. This contribution covers recent reports of total syntheses involving as a key step a photocatalytic reaction. Among the selected examples, the photocatalytic processes proceed in a highly chemo-, regio-, and stereoselective manner, thereby allowing the rapid access to structurally complex architectures under light-driven conditions.
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Bose Mazumdar Ghosh A, Banerjee A, Chattopadhyay S. An insight into the potent medicinal plant Phyllanthus amarus Schum. and Thonn. THE NUCLEUS : AN INTERNATIONAL JOURNAL OF CYTOLOGY AND ALLIED TOPICS 2022; 65:437-472. [PMID: 36407559 PMCID: PMC9660160 DOI: 10.1007/s13237-022-00409-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 10/07/2022] [Indexed: 11/13/2022]
Abstract
Phyllanthus amarus Schum. and Thonn., a globally distributed herb is known for its several therapeutic potentials. P. amarus has a long history of use in the traditional system of medicine for over 2000 years owing to its wide array of secondary metabolites that confer significant medicinal attributes. Research on various aspects including ethnobotany, phytochemistry to bioactivity, or pharmacological studies has been conducted over the past several decades on this potent herb. P. amarus extracts have shown a broad range of pharmacological activities like hepatoprotective, antioxidant, antiviral, antimicrobial, antidiabetic, anti-inflammatory, anticancer, antimalarial, nephroprotective, diuretic, and several other properties. The present review compiles and covers literature and research of several groups across past decades to date and focuses on how the therapeutic significance of this plant can be further explored for future research either as herbal formulations, alternative medicine, or in the pharmaceutical industry. Supplementary Information The online version contains supplementary material available at 10.1007/s13237-022-00409-z.
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Affiliation(s)
- Aparupa Bose Mazumdar Ghosh
- Plant Biology Lab, Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata, 700032 India
| | - Anindita Banerjee
- Undergraduate, Postgraduate, and Research Department of Microbiology, St. Xavier’s College (Autonomous), 30 Mother Teresa Sarani, Kolkata, 700016 India
| | - Sharmila Chattopadhyay
- Plant Biology Lab, Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata, 700032 India
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Chopade AR, Somade PM, Somade PP, Mali SN. Identification of Anxiolytic Potential of Niranthin: In-vivo and Computational Investigations. NATURAL PRODUCTS AND BIOPROSPECTING 2021; 11:223-233. [PMID: 33175328 PMCID: PMC7981351 DOI: 10.1007/s13659-020-00284-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 11/02/2020] [Indexed: 06/11/2023]
Abstract
Anxiety is an unpleasant state, which can critically decrease the quality of life is often accompanied by nervous behaviour and rumination. Niranthin is a lignan isolated from various Phyllanthus sources. The literature survey on niranthin highlights wide ranges of the therapeutic potentials. In a present study, based on our previous investigations, we evaluated pure, isolated and characterized niranthin as an anxiolytic agent. The niranthin [6-[(2R,3R)-3-[(3,4-dimethoxyphenyl)methyl]-4-methoxy-2-(methoxymethyl)butyl]-4-methoxy-1,3-benzodioxole] was purchased from commercial source and further subjected for assessment of its anxiolytic potentials using popular animal models including Elevated plus-maze model/test (EPM) and Light & Dark Exploration test (L&D). GABA-A receptor mediation was evaluated by pretreating the mice with the GABA-A receptor antagonist Flumazenil before the EPM task. Molecular docking simulation studies (pdb id: 4COF) carried out by Vlife QSAR software showed that niranthin (docking score: - 62.1714 kcal/mol) have shown comparatively best docking score compared to the standard drug Diazepam (docking score: - 63.1568 kcal/mol). To conclude, Niranthin has probable potential in the management of anxiety disorder. Our in-silico and in-vivo analysis (indirectly) indicated the plausible role of GABA mediation for anxiolytic activity. Although, these studies are preliminary, future in depth experimental explorations will be required to use Niranthin as anti-anxiety drug in near future.
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Affiliation(s)
- Atul R Chopade
- Department of Pharmacology, Rajarambapu College of Pharmacy, Kasegaon, Sangli, Maharashtra, 415404, India.
| | - Prakash M Somade
- Dept. of Physiology, Krishna Institute of Medical Sciences, Karad, Maharashtra, India.
| | - Pratik P Somade
- Dept. of Physiology, Krishna Institute of Medical Sciences, Karad, Maharashtra, India
| | - Suraj N Mali
- Government College of Pharmacy, Karad, Maharashtra, India
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Yang F, Yaseen A, Chen B, Li F, Wang L, Hu W, Wang M. Chemical constituents from the fruits of Phyllanthus emblica L. BIOCHEM SYST ECOL 2020. [DOI: 10.1016/j.bse.2020.104122] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Dos Santos RS, Sorgi CA, Peti APF, Veras FP, Faccioli LH, Galdino G. Involvement of Spinal Cannabinoid CB 2 Receptors in Exercise-Induced Antinociception. Neuroscience 2019; 418:177-188. [PMID: 31473278 DOI: 10.1016/j.neuroscience.2019.08.041] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 08/20/2019] [Accepted: 08/22/2019] [Indexed: 11/29/2022]
Abstract
Muscle pain affects approximately 11-24% of the global population. Several studies have shown that exercise is a non-pharmacological therapy to pain control. It has been suggested that the endocannabinoid system is involved in this antinociceptive effect. However, the participation of this pathway is unclear. The present study aimed to investigate whether spinal cannabinoid CB2 receptors participate in the exercise-induced antinociception. The inflammatory muscle pain model was induced by the intramuscular injection of carrageenan. Tactile allodynia and thermal hyperalgesia were determined with the von Frey filaments and hot-plate tests. C57BL/6J female mice underwent a swimming training protocol that lasted 3 weeks. This protocol of exercise reduced carrageenan-induced tactile allodynia and thermal hyperalgesia and this effect was prevented by the cannabinoid CB2 receptors inverse agonist AM630 and potentiated by MAFP (inhibitor of the enzyme that metabolizes endocannabinoids) and minocycline (microglia inhibitor). In addition, exercise increased the endocannabinoid anandamide levels and cannabinoid CB2 receptors expression whereas it reduced Iba1 (microglial marker) protein expression as well as pro-inflammatory cytokines (TNF-α and IL-1β) in the spinal cord of mice with inflammatory muscle pain. Swimming training also reduced muscle temperature of carrageen-treated animals. The present study suggests that activation of spinal cannabinoid CB2 receptors and reduction of activated microglia are involved in exercise-induced antinociception.
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Affiliation(s)
- Rafaela Silva Dos Santos
- Institute of Motricity Sciences, Federal University of Alfenas, Minas Gerais, Av. Jovino Fernandes Sales, 2600, 37133-840, Alfenas, Brazil
| | - Carlos Arterio Sorgi
- Faculty of Pharmaceutical Sciences of Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Ana Paula Ferranti Peti
- Faculty of Pharmaceutical Sciences of Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Flávio Protasio Veras
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Lúcia Helena Faccioli
- Faculty of Pharmaceutical Sciences of Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Giovane Galdino
- Institute of Motricity Sciences, Federal University of Alfenas, Minas Gerais, Av. Jovino Fernandes Sales, 2600, 37133-840, Alfenas, Brazil.
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Alfonzo E, Beeler AB. A sterically encumbered photoredox catalyst enables the unified synthesis of the classical lignan family of natural products. Chem Sci 2019; 10:7746-7754. [PMID: 31588322 PMCID: PMC6761868 DOI: 10.1039/c9sc02682g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 06/30/2019] [Indexed: 11/21/2022] Open
Abstract
Herein, we detail a unified synthetic approach to the classical lignan family of natural products that hinges on divergence from a common intermediate that was strategically identified from nature's biosynthetic blueprints.
Herein, we detail a unified synthetic approach to the classical lignan family of natural products that hinges on divergence from a common intermediate that was strategically identified from nature's biosynthetic blueprints. Efforts toward accessing the common intermediate through a convergent and modular approach resulted in the discovery of a sterically encumbered photoredox catalyst that can selectively generate carbonyl ylides from electron-rich epoxides. These can undergo concerted [3 + 2] dipolar cycloadditions to afford tetrahydrofurans, which were advanced (2–4 steps) to at least one representative natural product or natural product scaffold within all six subtypes in classical lignans. The application of those synthetic blueprints to the synthesis of heterolignans bearing unnatural functionality was demonstrated, which establishes the potential of this strategy to accelerate structure–activity-relationship studies of these natural product frameworks and their rich biological activity.
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Affiliation(s)
- Edwin Alfonzo
- Department of Chemistry , Boston University , Boston , Massachusetts 02215 , USA .
| | - Aaron B Beeler
- Department of Chemistry , Boston University , Boston , Massachusetts 02215 , USA .
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Shajib MS, Rashid RB, Ming LC, Islam S, Sarker MMR, Nahar L, Sarker SD, Datta BK, Rashid MA. Polymethoxyflavones from Nicotiana plumbaginifolia (Solanaceae) Exert Antinociceptive and Neuropharmacological Effects in Mice. Front Pharmacol 2018. [PMID: 29515437 PMCID: PMC5826308 DOI: 10.3389/fphar.2018.00085] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Polymethoxylavones (PMFs) are known to exhibit significant anti-inflammatory and neuroprotective properties. Nicotiana plumbaginifolia, an annual Bangladeshi herb, is rich in polymethoxyflavones that possess significant analgesic and anxiolytic activities. The present study aimed to determine the antinociceptive and neuropharmacological activities of polyoxygenated flavonoids namely- 3,3′,5,6,7,8-hexamethoxy-4′,5′-methylenedioxyflavone (1), 3,3′,4′,5′,5,6,7,8-octamethoxyflavone (exoticin) (2), 6,7,4′,5′-dimethylenedioxy-3,5,3′-trimethoxyflavone (3), and 3,3′,4′,5,5′,8-hexamethoxy-6,7-methylenedioxyflavone (4), isolated and identified from N. plumbaginifolia. Antinociceptive activity was assessed using the acetic-acid induced writhing, hot plate, tail immersion, formalin and carrageenan-induced paw edema tests, whereas neuropharmacological effects were evaluated in the hole cross, open field and elevated plus maze test. Oral treatment of compounds 1, 3, and 4 (12.5–25 mg/kg b.w.) exhibited dose-dependent and significant (p < 0.01) antinociceptive activity in the acetic-acid, formalin, carrageenan, and thermal (hot plate)-induced pain models. The association of ATP-sensitive K+ channel and opioid systems in their antinociceptive effect was obvious from the antagonist effect of glibenclamide and naloxone, respectively. These findings suggested central and peripheral antinociceptive activities of the compounds. Compound 1, 3, and 4 (12.5 mg/kg b.w.) demonstrated significant (p < 0.05) anxiolytic-like activity in the elevated plus-maze test, while the involvement of GABAA receptor in the action of compound 3 and 4 was evident from the reversal effects of flumazenil. In addition, compounds 1 and 4 (12.5–25 mg/kg b.w) exhibited anxiolytic activity without altering the locomotor responses. The present study suggested that the polymethoxyflavones (1–4) from N. Plumbaginifolia could be considered as suitable candidates for the development of analgesic and anxiolytic agents.
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Affiliation(s)
| | - Ridwan B Rashid
- Department of Pharmacy, State University of Bangladesh, Dhaka, Bangladesh
| | - Long C Ming
- School of Pharmacy, KPJ Healthcare University College, Nilai, Malaysia.,Unit for Medication Outcomes Research and Education, Pharmacy, University of Tasmania, Hobart, TAS, Australia
| | - Shanta Islam
- Department of Pharmacy, Stamford University Bangladesh, Dhaka, Bangladesh
| | | | - Lutfun Nahar
- Faculty of Science, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, United Kingdom
| | - Satyajit D Sarker
- Faculty of Science, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, United Kingdom
| | - Bidyut K Datta
- Department of Pharmacy, Stamford University Bangladesh, Dhaka, Bangladesh
| | - Mohammad A Rashid
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Dhaka, Dhaka, Bangladesh
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Bagüés A, Martín‐Fontelles MI, Esteban‐Hernández J, Sánchez‐Robles EM. Characterization of the nociceptive effect of carrageenan: Masseter versus gastrocnemius. Muscle Nerve 2017; 56:804-813. [DOI: 10.1002/mus.25538] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 12/16/2016] [Accepted: 12/21/2016] [Indexed: 12/20/2022]
Affiliation(s)
- Ana Bagüés
- Área de Farmacología y Nutrición, Unidad asociada I+D+i al Instituto de Química Médica, Grupo de excelencia investigadora URJC–Banco de Santander–Grupo Multidisciplinar de Investigación y Tratamiento del Dolor (i+DOL)Alcorcón Madrid Spain
| | - M. Isabel Martín‐Fontelles
- Área de Farmacología y Nutrición, Unidad asociada I+D+i al Instituto de Química Médica, Grupo de excelencia investigadora URJC–Banco de Santander–Grupo Multidisciplinar de Investigación y Tratamiento del Dolor (i+DOL)Alcorcón Madrid Spain
| | - Jesús Esteban‐Hernández
- Área de Medicina Preventiva y Salud Pública, Facultad de Ciencias de la Salud. Universidad Rey Juan CarlosAlcorcón Madrid Spain
| | - Eva M. Sánchez‐Robles
- Área de Farmacología y Nutrición, Unidad asociada I+D+i al Instituto de Química Médica, Grupo de excelencia investigadora URJC–Banco de Santander–Grupo Multidisciplinar de Investigación y Tratamiento del Dolor (i+DOL)Alcorcón Madrid Spain
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Dutra RC, Campos MM, Santos AR, Calixto JB. Medicinal plants in Brazil: Pharmacological studies, drug discovery, challenges and perspectives. Pharmacol Res 2016; 112:4-29. [DOI: 10.1016/j.phrs.2016.01.021] [Citation(s) in RCA: 138] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Accepted: 01/17/2016] [Indexed: 12/16/2022]
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13
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Youn K, Lee S, Jeong WS, Ho CT, Jun M. Protective Role of Corilagin on Aβ 25-35-Induced Neurotoxicity: Suppression of NF-κB Signaling Pathway. J Med Food 2016; 19:901-911. [PMID: 27654707 DOI: 10.1089/jmf.2016.3714] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Aggregation and deposition of beta-amyloid peptides (Aβ), a pathological hallmark of Alzheimer's disease, has been recognized as a potent activator of neuroinflammation and neuronal dysfunction. In this study, the underlying molecular mechanisms responsible for the neuroprotective effects of corilagin against Aβ25-35-triggered neurotoxicity and inflammatory responses were investigated in PC12 cells. Pretreatment with corilagin effectively protected PC12 cells against Aβ25-35-induced damage and apoptosis. Aβ25-35 induced damage in PC12 cells as revealed by increased production of reactive oxygen species, caspase-3 activity, and cell cycle arrest was attenuated by corilagin pretreatment. Corilagin not only significantly suppressed the production of neurotoxic inflammatory mediators such as tumor necrosis factor-α, nitric oxide, and prostaglandin E2 but also downregulated cyclooxygenase-2 and inducible nitric oxide synthase expression in PC12 cells. It also exerted a beneficial effect by suppressing the degradation of inhibitor of κB (IκB)-α and subsequent activation of transcription factor nuclear factor κB (NF-κB), mostly through inhibition of extracellular signal-regulated kinase activity in comparison to c-Jun N-terminal kinase and p38 MAP kinase (p38) mitogen-activated protein kinase activity. These findings suggest that attenuation of Aβ25-35-induced inflammatory responses by downregulating the NF-κB signaling pathway might be a valuable strategy for both Alzheimer's disease prevention and/or treatment.
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Affiliation(s)
- Kumju Youn
- 1 Department of Food Science and Nutrition, Dong-A University , Busan, Korea
| | - Seonah Lee
- 1 Department of Food Science and Nutrition, Dong-A University , Busan, Korea
| | - Woo-Sik Jeong
- 2 Department of Food and Life Science, College of Biomedical Science & Engineering, Inje University , Gimhae, Korea
| | - Chi-Tang Ho
- 3 Department of Food Science, Rutgers University , New Brunswick, New Jersey, USA
| | - Mira Jun
- 1 Department of Food Science and Nutrition, Dong-A University , Busan, Korea.,4 Institute of Convergence Bio-Health (ICBH), Dong-A University , Busan, Korea
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