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Mishra S, Gandhi D, Tiwari RR, Rajasekaran S. Beneficial role of kaempferol and its derivatives from different plant sources on respiratory diseases in experimental models. Inflammopharmacology 2023; 31:2311-2336. [PMID: 37410224 DOI: 10.1007/s10787-023-01282-1] [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: 01/19/2023] [Accepted: 06/02/2023] [Indexed: 07/07/2023]
Abstract
Respiratory illnesses impose a significant health burden and cause deaths worldwide. Despite many advanced strategies to improve patient outcomes, they are often less effective. There is still considerable room for improvement in the treatment of various respiratory diseases. In recent years, alternative medicinal agents derived from food plants have shown better beneficial effects against a wide variety of disease models, including cancer. In this regard, kaempferol (KMF) and its derivatives are the most commonly found dietary flavonols. They have been found to exhibit protective effects on multiple chronic diseases like diabetes, fibrosis, and so on. A few recent articles have reviewed the pharmacological actions of KMF in cancer, central nervous system diseases, and chronic inflammatory diseases. However, there is no comprehensive review that exists regarding the beneficial effects of KMF and its derivatives on both malignant- and non-malignant respiratory diseases. Many experimental studies reveal that KMF and its derivatives are helpful in managing a wide range of respiratory diseases, including acute lung injury, fibrosis, asthma, cancer, and chronic obstructive pulmonary disease, and their underlying molecular mechanisms. In addition, we also discussed the chemistry and sources, the absorption, distribution, metabolism, excretion, and toxicity (ADMET) properties, methods to enhance bioavailability, as well as our perspective on future research with KMF and its derivatives.
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Affiliation(s)
- Sehal Mishra
- Department of Biochemistry, ICMR-National Institute for Research in Environmental Health, Bhopal, Madhya Pradesh, 462030, India
| | - Deepa Gandhi
- Department of Biochemistry, ICMR-National Institute for Research in Environmental Health, Bhopal, Madhya Pradesh, 462030, India
| | - Rajnarayan R Tiwari
- Department of Biochemistry, ICMR-National Institute for Research in Environmental Health, Bhopal, Madhya Pradesh, 462030, India
| | - Subbiah Rajasekaran
- Department of Biochemistry, ICMR-National Institute for Research in Environmental Health, Bhopal, Madhya Pradesh, 462030, India.
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Bourscheid TG, Cardoso LC, Nascimento Santana MH, Cimó de Oliveira L, Reginato FZ, Machado MM, Valle de Bairros A. Use of snuff and its main constituents for religious purposes in an alternative community with shamanic practices in the south of Brazil. JOURNAL OF PSYCHEDELIC STUDIES 2022. [DOI: 10.1556/2054.2022.00220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abstract
Snuff is a fine aromatic powder composed of dried and thin leaves combined with tobacco, roots, peels, and seeds. Its use for indigenous religious purposes has appeared since pre-Columbian period in various localities of American continent. Practice is considered sacred in indigenous culture and suffered from trivialization of consumption due to influence of colonizers, which triggered subsequent industrialization of this complex for commercial purposes. Commercial snuff is essentially made from industrialized tobacco without addition of other medicinal plants and without therapeutic or spiritual purposes beyond its indiscriminate and inappropriate use, causing health risks. Therefore, this study aimed to make a review on snuff in Brazilian culture and a tour of a local community. In shamanism, plants are used as access vehicles to other religions of cosmos and its inhabitants, from where experts dialogue, bring songs, news, omens, and acquire new knowledge. The plants used in shamanic composition of snuff vary with the locality of indigenous villages in America and are essential ingredients of this interaction between humans and non-humans, a special mediator of intersubjective interactions. Several studies show the use and meaning of Erythroxylum coca used in different communities of the Amazon, besides Chacrona and Mariri, popular names of plants used in manufacture of Ayahuasca drink by doctrine Santo Daime. Because of this, it is essential to establish differences between recreational snuff and shamanic and their effects on body as well as studies on use of shamanic snuff should be directed according to their applications and plants employed by communities.
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Affiliation(s)
- Thais Guimarães Bourscheid
- Nucleus Applied to Toxicology, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, Brazil
| | - Leonardo Corrêa Cardoso
- Nucleus Applied to Toxicology, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, Brazil
| | | | - Letícia Cimó de Oliveira
- Nucleus Applied to Toxicology, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, Brazil
| | - Fernanda Ziegler Reginato
- Nucleus Applied to Toxicology, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, Brazil
| | - Michel Mansur Machado
- Immunology and Applied Genetics Group (GIGA), Federal University of Pampa, Uruguaiana, Brazil
| | - André Valle de Bairros
- Nucleus Applied to Toxicology, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, Brazil
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Plant-Derived Natural Products as Lead Agents against Common Respiratory Diseases. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27103054. [PMID: 35630531 PMCID: PMC9144277 DOI: 10.3390/molecules27103054] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/23/2022] [Accepted: 05/07/2022] [Indexed: 12/16/2022]
Abstract
Never has the world been more challenged by respiratory diseases (RDs) than it has witnessed in the last few decades. This is evident in the plethora of acute and chronic respiratory conditions, ranging from asthma and chronic obstructive pulmonary disease (COPD) to multidrug-resistant tuberculosis, pneumonia, influenza, and more recently, the novel coronavirus (COVID-19) disease. Unfortunately, the emergence of drug-resistant strains of pathogens, drug toxicity and side effects are drawbacks to effective chemotherapeutic management of RDs; hence, our focus on natural sources because of their unique chemical diversities and novel therapeutic applications. This review provides a summary on some common RDs, their management strategies, and the prospect of plant-derived natural products in the search for new drugs against common respiratory diseases.
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Chen Y, Wang X, Zhai H, Zhang Y, Huang J. Identification of Potential Human Ryanodine Receptor 1 Agonists and Molecular Mechanisms of Natural Small-Molecule Phenols as Anxiolytics. ACS OMEGA 2021; 6:29940-29954. [PMID: 34778666 PMCID: PMC8582060 DOI: 10.1021/acsomega.1c04468] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 10/18/2021] [Indexed: 06/13/2023]
Abstract
Natural small-molecule phenols (NSMPs) possess certain ubiquitous bioactivities including the anxiolytic effect. Ryanodine receptor 1 (RyR1) may be one of the potentially critical pharmacological targets for studying the anxiolytic activity of NSMPs. However, detailed molecular mechanisms of NSMPs have not been fully clarified. This research was intended to identify potent hRyR1 agonists from NSMPs and investigate whether RyR1 plays a role in their anxiolytic effect. Homology modeling and molecular docking analysis were performed using Accelrys Discovery Studio 2.5. The most appropriate concentrations of NSMPs to activate RyR1 were measured using the MTT assay. Fluorescence analyses of the intracellular calcium levels and western blotting analysis were carried out to validate whether NSMPs could regulate the calcium flux to some extent by activating RyR1. The results demonstrated that xanthotoxol and 5-hydroxy-1,4-naphthalenedione can be screened as hit compounds for potential agonists of hRyR1 to exert the anxiolytic effect. In conclusion, NSMPs might be a kind of pharmacological signal carrier, acting on RyR1 as an agonist and resulting in calcium ion mobilization from intracellular calcium ion store.
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Affiliation(s)
- Yahong Chen
- School
of Chinese Materia Medica, Beijing University
of Chinese Medicine, Yangguang South Road, Fangshan District, Beijing 102488, China
| | - Xiaohong Wang
- School
of Chinese Materia Medica, Beijing University
of Chinese Medicine, Yangguang South Road, Fangshan District, Beijing 102488, China
| | - Haifeng Zhai
- National
Institute on Drug Dependence, Peking University, 38#, Xueyuan Road, Haidian District, Beijing 100191, China
| | - Yanling Zhang
- School
of Chinese Materia Medica, Beijing University
of Chinese Medicine, Yangguang South Road, Fangshan District, Beijing 102488, China
| | - Jianmei Huang
- School
of Chinese Materia Medica, Beijing University
of Chinese Medicine, Yangguang South Road, Fangshan District, Beijing 102488, China
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Fabaceae medicinal flora with therapeutic potential in Savanna areas in the Chapada do Araripe, Northeastern Brazil. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2018. [DOI: 10.1016/j.bjp.2018.06.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Lima Pereira ÉP, Santos Souza C, Amparo J, Short Ferreira R, Nuñez-Figueredo Y, Gonzaga Fernandez L, Ribeiro PR, Braga-de-Souza S, Amaral da Silva VD, Lima Costa S. Amburana cearensis seed extract protects brain mitochondria from oxidative stress and cerebellar cells from excitotoxicity induced by glutamate. JOURNAL OF ETHNOPHARMACOLOGY 2017; 209:157-166. [PMID: 28712890 DOI: 10.1016/j.jep.2017.07.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 07/07/2017] [Accepted: 07/13/2017] [Indexed: 05/26/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Amburana cearensis (Allemao) A.C.Sm. is a medicinal plant of the Brazilian Caatinga reported to present antioxidant and anti-inflammatory activity. This study aimed to evaluate the neuroprotective effect of the extracts obtained from the seeds of A. cearensis in primary cultures of cerebellar cells subjected to excitotoxicity induced by glutamate and brain mitochondria submitted to oxidative stress. MATERIALS and methods: Primary cultures of cerebellar cells were treated with the ethanol (ETAC), hexane (EHAC), dichloromethane (EDAC) and ethyl acetate (EAAC) extracts of the seeds of A.cearensis and subjected to excitotoxicity induced by glutamate (10µM). Mitochondria isolated from rat brains were submitted to oxidative stress and treated with ETAC. RESULTS Only the EHAC extract reduced cell viability by 30% after 72h of treatment. Morphological analyses by Immunofluorescence showed positive staining for glutamine synthetase, β-III tubulin, GFAP and IBA1 similar to control cultures, indicating a better preservation of astrocytes, neurons and microglia, after excitotoxic damage induced by glutamate in cerebellar cultures treated with the extracts. The ETAC extract also protected mitochondria isolated from rat brains from oxidative stress, reducing the swelling, dissipation of the membrane potential, ROS production and calcium influx. CONCLUSION Thus, this study suggests that the seed extracts from A. Cearensis exhibit neuroprotective potential against oxidative stress and excitotoxicity induced by glutamate and can be considered a potential therapeutic agent in the treatment of neurodegenerative diseases.
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Affiliation(s)
- Érica Patrícia Lima Pereira
- Laboratório de Neuroquímica e Biologia Celular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, BA, Brazil
| | - Cleide Santos Souza
- Laboratório de Neuroquímica e Biologia Celular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, BA, Brazil
| | - Jessika Amparo
- Laboratório de Neuroquímica e Biologia Celular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, BA, Brazil
| | - Rafael Short Ferreira
- Laboratório de Neuroquímica e Biologia Celular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, BA, Brazil
| | - Yanier Nuñez-Figueredo
- Centro de Investigacion y Desarrollo de Medicamentos, Ave 26, No. 1605 Boyeros y Puentes Grandes, CP 10600 La Habana, Cuba
| | - Luzimar Gonzaga Fernandez
- Laboratório de Bioquímica, Biotecnologia e Bioprodutos, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, BA, Brazil
| | - Paulo Roberto Ribeiro
- Laboratório de Bioquímica, Biotecnologia e Bioprodutos, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, BA, Brazil
| | - Suzana Braga-de-Souza
- Laboratório de Neuroquímica e Biologia Celular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, BA, Brazil
| | - Victor Diogenes Amaral da Silva
- Laboratório de Neuroquímica e Biologia Celular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, BA, Brazil
| | - Silvia Lima Costa
- Laboratório de Neuroquímica e Biologia Celular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, BA, Brazil.
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Basu S, Prasad MN, Suthari S, Kiran BR. Prosopis juliflora (mesquite) gum exudate as a potential excipient. EUROBIOTECH JOURNAL 2017. [DOI: 10.24190/issn2564-615x/2017/01.12] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Abstract
Gum exudate was obtained from Prosopis juliflora (Sw.) DC., which is abundantly available in north-west, central, west and south India. It was analysed for its phytochemical composition in aqueous extract and as well as by LCMS, GCMS, TGDTA and SEM to validate it’s potential for use as an excipient (Fig. 1).
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Affiliation(s)
- Sweta Basu
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad Central University P.O., Gachibowli, Hyderabad, Telangana , India
| | - Majeti N.V. Prasad
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad Central University P.O., Gachibowli, Hyderabad, Telangana , India
- Present address: Visiting Professor School of Environment, Resources and Development (SERD), Room E120 Asian Institute of Technology (AIT) Klong Luang, Pathumthani , Thailand
| | - Sateesh Suthari
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad Central University P.O., Gachibowli, Hyderabad, Telangana , India
| | - Boda Ravi Kiran
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad Central University P.O., Gachibowli, Hyderabad, Telangana , India
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Benabdallah H, Gharzouli K. Effects of flavone on the contractile activity of the circular smooth muscle of the rabbit middle colon in vitro. Eur J Pharmacol 2015; 760:20-6. [PMID: 25895637 DOI: 10.1016/j.ejphar.2015.04.007] [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: 03/03/2015] [Revised: 04/03/2015] [Accepted: 04/08/2015] [Indexed: 11/25/2022]
Abstract
The circular smooth muscles of the middle colon of the rabbit generate giant contractions of high amplitude and low frequency. Flavone, at various concentrations, reduces the giant contractions and the tonic contraction induced by 10 µM carbachol and 80 mM KCl. The contractions induced by dequalinium and tetraethylammonium are reduced by flavone (30 µM). At 100 µM, flavone decreases the contraction induced by 100 µM methylene blue and 1mM orthovanadate. These results suggest that flavone inhibit the giant contractions by (1) inhibition of voltage-dependent Ca(2+) channels, (2) activation of guanyl cyclase, (3) opening of K(+) channels and (4) inhibition of tyrosines kinases.
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Affiliation(s)
- Hassiba Benabdallah
- Department of Microbiology and Biochemistry, Faculty of Sciences, University Mohamed Boudiaf of M׳sila, Algeria.
| | - Kamel Gharzouli
- Department of Animal physiology, Faculty of Nature and Life Sciences, University Ferhat Abbes of Setif, Algeria
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Park CY, Zhou EH, Tambe D, Chen B, Lavoie T, Dowell M, Simeonov A, Maloney DJ, Marinkovic A, Tschumperlin DJ, Burger S, Frykenberg M, Butler JP, Stamer WD, Johnson M, Solway J, Fredberg JJ, Krishnan R. High-throughput screening for modulators of cellular contractile force. Integr Biol (Camb) 2015; 7:1318-24. [PMID: 25953078 DOI: 10.1039/c5ib00054h] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
When cellular contractile forces are central to pathophysiology, these forces comprise a logical target of therapy. Nevertheless, existing high-throughput screens are limited to upstream signalling intermediates with poorly defined relationships to such a physiological endpoint. Using cellular force as the target, here we report a new screening technology and demonstrate its applications using human airway smooth muscle cells in the context of asthma and Schlemm's canal endothelial cells in the context of glaucoma. This approach identified several drug candidates for both asthma and glaucoma. We attained rates of 1000 compounds per screening day, thus establishing a force-based cellular platform for high-throughput drug discovery.
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Affiliation(s)
- Chan Young Park
- Molecular and Integrative Physiological Sciences, Harvard School of Public Health, 665 Huntington Avenue, Boston, MA 02115, USA
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Taur DJ, Patil RY. Some medicinal plants with antiasthmatic potential: a current status. Asian Pac J Trop Biomed 2015; 1:413-8. [PMID: 23569804 DOI: 10.1016/s2221-1691(11)60091-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2011] [Revised: 03/27/2011] [Accepted: 04/19/2011] [Indexed: 12/13/2022] Open
Abstract
Asthma is a common disease that is rising in prevalence worldwide with the highest prevalence in industrialized countries. Asthma affects about 300 million people worldwide and it has been estimated that a further 100 million will be affected by 2025. Since the ancient times, plants have been exemplary sources of medicine. Current asthma therapy lack satisfactory success due to adverse effect, hence patients are seeking complementary and alternative medicine to treat their asthma. Ayurveda and other Indian literature mention the use of plants in various human ailments. India has about 45,000 plant species and among them several thousand are claimed to possess medicinal properties. Researches conducted in the last few decades on the plants mentioned in ancient literature or used traditionally for asthma have shown antiasthmatic, antihistaminic and antiallergic activity. This review reveals that some plants and their extract have antiasthmatic, antihistaminic, anticholinergic and antiallergic activity.
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Affiliation(s)
- Dnyaneshwar J Taur
- Department of Pharmacognosy, SVPM's College of Pharmacy, Malegaon (bk), Baramati, Maharashtra, India
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Leal LKAM, Pierdoná TM, Góes JGS, Fonsêca KS, Canuto KM, Silveira ER, Bezerra AME, Viana GSB. A comparative chemical and pharmacological study of standardized extracts and vanillic acid from wild and cultivated Amburana cearensis A.C. Smith. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2011; 18:230-233. [PMID: 20638258 DOI: 10.1016/j.phymed.2010.05.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2009] [Revised: 04/05/2010] [Accepted: 05/25/2010] [Indexed: 05/29/2023]
Abstract
The objectives of this work were to carry out a comparative chemical study and to evaluate the antinociceptive and anti-inflammatory activities of ethanol extracts (EtOHE) and vanilic acid (VA) from cultivated and wild Amburana cearensis A.C. Smith (Fabaceae), an endangered species used in Northeast Brazil for the treatment of asthma. The HPLC analysis of EtOHE, showed that coumarin (CM) and VA were the major constituents from the cultivated plant, while in the extract from the wild plant the major constituents were amburoside A (AMB) and CM. Pharmacological tests were performed with male Swiss mice or male Wistar rats acutely administered with 100-400mg/kg, p.o. of EtOHEs or 12.5-50mg/kg, p.o. of VA. EtOHEs from A. cearensis with 4, 7 or 9 months of cultivation significantly inhibited, from 32 to 64%, both phases of the formalin test in mice. Similar results were observed with the EtOHE from the wild species. VA significantly reduced both phases of the formalin test. This effect was partially reversed by naloxone. EtOHE from cultivated or wild A. cearensis inhibited the carrageenan (Cg)-induced mice paw edema. Furthermore, VA inhibited the paw edema and the leukocyte migration in rat peritoneal cavity induced by Cg. On the other hand, it did not inhibit the edema and the increase of vascular permeability induced by dextran in the rat paw. All together, these results indicate that the EtOHE from cultivated A. cearensis exhibit similar chemical and pharmacological profiles, as related to the wild plant. VA is, at least partially, responsible for these pharmacological effects. Its antinociceptive effect occurs by a mechanism partly dependent upon the opioid system, while the anti-inflammatory action was manifested in inflammatory processes dependent on polymorphonuclear cells and are probably related to the VA inhibition of cytokines as observed by others.
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Affiliation(s)
- L K A M Leal
- Department of Pharmacy, Federal University of Ceará, Rua Capitão Francisco Pedro, 1210, 60430-370 Fortaleza, Brazil.
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Leal LKAM, Canuto KM, da Silva Costa KC, Nobre-Júnior HV, Vasconcelos SM, Silveira ER, Ferreira MVP, Fontenele JB, Andrade GM, de Barros Viana GS. Effects of amburoside A and isokaempferide, polyphenols from Amburana cearensis, on rodent inflammatory processes and myeloperoxidase activity in human neutrophils. Basic Clin Pharmacol Toxicol 2008; 104:198-205. [PMID: 19053991 DOI: 10.1111/j.1742-7843.2008.00329.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The present study evaluated the anti-inflammatory activity of amburoside A (a phenol glucoside) and isokaempferide (a flavonol) isolated from the trunk bark of Amburana cearensis, a medicinal plant used in northeast Brazil for the treatment of asthma. Animals (male Wistar rats or Swiss mice) pre-treated with amburoside A (25 and 50 mg/kg) or isokaempferide (12.5, 25 and 50 mg/kg), orally or intraperitoneally, showed a significant inhibition of the paw oedema induced by carrageenan (1%), prostaglandin E(2) (30 nmol/paw), histamine (200 microg/paw) or serotonin (200 microg/paw). Histological and morphometric evaluations of the rat paw oedema induced by carrageenan showed that amburoside A and isokaempferide also inhibited the accumulation of inflammatory cells. Amburoside A reduced significantly the paw oedema and the increase in vascular permeability induced by dextran, as related to the control group. Similar results were observed with the isokaempferide pre-treatment. Furthermore, amburoside A or isokaempferide inhibited both leucocyte and neutrophil migrations, in mouse peritoneal cavity, after the carrageenan injection. The polyphenols were not cytotoxic and blocked N-formyl-methyl-leucyl-phenylalanine-induced myeloperoxidase release and activity in human neutrophils. In addition, amburoside A and isokaempferide at 50 and 100 microg/ml concentrations reduced significantly the lipopolysaccharide-mediated increase in tumour necrosis factor-alpha (TNF-alpha) levels. These results provide, for the first time, evidence to support the anti-inflammatory activity of amburoside A and isokaempferide that seems to be related to an inhibition of inflammatory mediators, such as TNF-alpha, as well as histamine, serotonin and prostaglandin E(2), besides leucocyte infiltration in a dose- or concentration-dependent manner. These anti-inflammatory effects can be explained, at least in part, by the ability of these compounds to reduce neutrophil degranulation, myeloperoxidase activity, mediators as well as TNF-alpha secretion.
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Qin CX, Chen X, Hughes RA, Williams SJ, Woodman OL. Understanding the Cardioprotective Effects of Flavonols: Discovery of Relaxant Flavonols without Antioxidant Activity. J Med Chem 2008; 51:1874-84. [PMID: 18307286 DOI: 10.1021/jm070352h] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Wattanapitayakul SK, Suwatronnakorn M, Chularojmontri L, Herunsalee A, Niumsakul S, Charuchongkolwongse S, Chansuvanich N. Kaempferia parviflora ethanolic extract promoted nitric oxide production in human umbilical vein endothelial cells. JOURNAL OF ETHNOPHARMACOLOGY 2007; 110:559-62. [PMID: 17113256 DOI: 10.1016/j.jep.2006.09.037] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2006] [Revised: 08/30/2006] [Accepted: 09/23/2006] [Indexed: 05/12/2023]
Abstract
The rhizomes of Kaempferia parviflora (KP) (Zingiberaceae) have been used in Thai traditional medicine for health promotion and for the treatment of digestive disorders and gastric ulcer. This study investigated effect of KP on endothelial function. Studies in human umbilical vein endothelial cells (HUVEC) showed that KP dose-dependently increased nitrite concentrations in culture media after 48 h incubation. eNOS mRNA and protein expression were also enhanced. The induction of eNOS mRNA was detected at 4 h and plateau at 48 h while iNOS expression was not observed. These data demonstrate that KP has a great potential for a supplemental use in vascular endothelial health promotion.
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Affiliation(s)
- Suvara K Wattanapitayakul
- Department of Pharmacology, Srinakharinwirot University, Sukhumvit 23, Wattana, Bangkok 10110, Thailand.
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