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del Carmen Díaz-Torres R, Yáñez-Barrientos E, Montes-Rocha JÁ, Morales-Tirado DJ, Alba-Betancourt C, Gasca-Martínez D, Gonzalez-Rivera ML, del Carmen Juárez-Vázquez M, Deveze-Álvarez MA, Isiordia-Espinoza MA, Carranza-Álvarez C, Alonso-Castro AJ. Ethnomedicinal Study and Evaluation of the Anxiolytic-like and Diuretic Effects of the Orchid Stanhopea tigrina Bateman ex Lindl-(Orchidaceae). Pharmaceuticals (Basel) 2024; 17:588. [PMID: 38794158 PMCID: PMC11124363 DOI: 10.3390/ph17050588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 04/21/2024] [Accepted: 05/04/2024] [Indexed: 05/26/2024] Open
Abstract
Stanhopea tigrina Bateman ex Lindl. (Orchidaceae) is an orchid endemic to Mexico, known as "Calavera" or "calaverita", in the Huasteca Potosina (central region of Mexico). This plant species is used for the folk treatment of mental disorders and urological kidney disorders, according to the ethnomedicinal information obtained in this study. Ethanolic extracts of leaves (HE) and pseudobulb (PE) were obtained by microwave-assisted extraction (MAE). Gas Chromatography coupled with Mass Spectrometry (GC-MS) was used to carry out the chemical characterization of HE and PE. The pharmacological effects (antioxidant, diuretic, anxiolytic, locomotor, hypnotic, and sedative) of HE and PE were evaluated. The possible mechanism of action of the anxiolytic-like activity induced by HE was assessed using inhibitors of the GABAergic, adrenergic, and serotonergic systems. The possible mechanism of the diuretic action of HE was assessed using prostaglandin inhibitory antagonists and nitric oxide synthase (NOS) blockers. HE at 50 and 100 mg/kg exerted anxiolytic-like activity without inducing hypnosis or sedation. Flumazenil, prazosin, and ketanserin inhibited the anxiolytic-like activity shown by HE, which suggests the participation of GABA, α1-adrenergic receptors, and 5-HT2 receptors, respectively. The diuretic effect was reversed by the non-selective NOS inhibitor L-NAME, which caused the reduction in nitric oxide (NO). These results demonstrate that the ethanolic extract of S. tigrina leaves exhibited anxiolytic-like activity and diuretic effects without inducing hypnosis or sedation. This work validates the medicinal uses of this orchid species.
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Affiliation(s)
- Rocío del Carmen Díaz-Torres
- Multidisciplinary Graduate Program in Environmental Sciences, Autonomous University of San Luis Potosí, San Luís Potosí 78000, Mexico;
| | - Eunice Yáñez-Barrientos
- Department of Chemistry, University of Guanajuato, Guanajuato 36200, Mexico; (E.Y.-B.); (D.J.M.-T.)
| | - José Ángel Montes-Rocha
- School of Professional Studies Huasteca Zone, Autonomous University of San Luis Potosí, Ciudad Valles, San Luís Potosí 79059, Mexico;
| | | | - Clara Alba-Betancourt
- Department of Pharmacy, Division of Natural and Exact Sciences, University of Guanajuato, Guanajuato 36200, Mexico; (C.A.-B.); (M.L.G.-R.); (M.d.C.J.-V.); (M.A.D.-Á.)
| | - Deisy Gasca-Martínez
- Institute of Neurobiology, National Autonomous University of Mexico, Juriquilla 76230, Mexico;
| | - Maria L. Gonzalez-Rivera
- Department of Pharmacy, Division of Natural and Exact Sciences, University of Guanajuato, Guanajuato 36200, Mexico; (C.A.-B.); (M.L.G.-R.); (M.d.C.J.-V.); (M.A.D.-Á.)
| | - María del Carmen Juárez-Vázquez
- Department of Pharmacy, Division of Natural and Exact Sciences, University of Guanajuato, Guanajuato 36200, Mexico; (C.A.-B.); (M.L.G.-R.); (M.d.C.J.-V.); (M.A.D.-Á.)
| | - Martha Alicia Deveze-Álvarez
- Department of Pharmacy, Division of Natural and Exact Sciences, University of Guanajuato, Guanajuato 36200, Mexico; (C.A.-B.); (M.L.G.-R.); (M.d.C.J.-V.); (M.A.D.-Á.)
| | | | - Candy Carranza-Álvarez
- School of Professional Studies Huasteca Zone, Autonomous University of San Luis Potosí, Ciudad Valles, San Luís Potosí 79059, Mexico;
| | - Angel Josabad Alonso-Castro
- Department of Pharmacy, Division of Natural and Exact Sciences, University of Guanajuato, Guanajuato 36200, Mexico; (C.A.-B.); (M.L.G.-R.); (M.d.C.J.-V.); (M.A.D.-Á.)
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Pomini AM, Sahyun SA, Oliveira SMDE, Faria RTDE. Bioactive natural products from orchids native to the Americas - A review. AN ACAD BRAS CIENC 2023; 95:e20211488. [PMID: 37646708 DOI: 10.1590/0001-3765202320211488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 01/26/2023] [Indexed: 09/01/2023] Open
Abstract
The purpose of this review is to provide information on the traditional uses, phytochemical and pharmacological studies performed with species of orchids native to the Americas and the Caribbean Islands. The treatment of inflammation is the most traditional use for plants of this family, specially in Central America, while anti-inflammatory and anticancer assays are oftenly reported in pharmacological investigations. From the chemical point of view, they are sources of phenanthrenoids and stilbenes, rare secondary metabolites not commonly found in other families of plants, as well as cycloartane triterpenes, pyrrolizidine alkaloids and flavonoids. Since just few species were chemically and pharmacologically studied, in comparison to the large number of native species (less than 0.5% of the total), the orchids of the New World may be an interesting niche for the discovery of new, bioactive natural products.
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Affiliation(s)
- Armando Mateus Pomini
- State University of Maringá, Department of Chemistry, Colombo Avenue 5790, 87020-900 Maringá, PR, Brazil
| | - Sandra Aparecida Sahyun
- State University of Londrina, Department of Agronomy, Celso Garcia Road, Km 380, 86057-970 Londrina, PR, Brazil
| | - Silvana Maria DE Oliveira
- State University of Maringá, Department of Chemistry, Colombo Avenue 5790, 87020-900 Maringá, PR, Brazil
| | - Ricardo Tadeu DE Faria
- State University of Londrina, Department of Agronomy, Celso Garcia Road, Km 380, 86057-970 Londrina, PR, Brazil
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Yáñez-Barrientos E, González-Ibarra AA, Wrobel K, Wrobel K, Corrales-Escobosa AR, Alonso-Castro AJ, Carranza-Álvarez C, Ponce-Hernández A, Isiordia-Espinoza MA, Ortiz-Andrade R, Torres-Gutiérrez KL, Luna-Rubio S, Zapata-Morales JR. Antinociceptive effects of Laelia anceps Lindl. and Cyrtopodium macrobulbon (Lex.) G.A. Romero & Carnevali, and comparative evaluation of their metabolomic profiles. JOURNAL OF ETHNOPHARMACOLOGY 2022; 291:115172. [PMID: 35257843 DOI: 10.1016/j.jep.2022.115172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 02/24/2022] [Accepted: 03/03/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Laelia anceps and Cyrtopodium macrobulbon are two orchids used in Mexican traditional medicine for treating pain. AIM OF THE STUDY The individual antinociceptive activity of ethanol extracts from the roots of Laelia anceps (LAE) and Cyrtopodium macrobulbon (CME) was evaluated, and their metabolomic profiles were comparatively evaluated. The antinociceptive activity of CME and naproxen combination (1:1) was also addressed. MATERIALS AND METHODS The antinociceptive actions of LAE and CME were examined using three nociceptive tests. The combination of CME with naproxen was evaluated in the acetic acid test using isobologram analysis. Metabolomic analysis was performed using capillary reversed phase liquid chromatography-electrospray ionization-high resolution mass spectrometry and the MS-DIAL 4.70 software was used for data analysis and statistics. RESULTS LAE (ED50 = 48.4 mg/kg) and CME (ED50 = 17.8 mg/kg) showed antinociceptive activity in the acetic acid test. Pre-treatment with L-NAME reverted the antinociceptive effects of LAE and CME in the acetic acid test. LAE (ED50 = 97 mg/kg) and CME (ED50 = 29 mg/kg) also induced antinociceptive activity in the second phase of the formalin test. The combination of CME with naproxen induced synergistic (interaction index = 0.434) antinociceptive effects (ED50 = 10.6 mg/kg). Overall, 156 compounds allocated in 97 different ontologies were found to be differentially expressed in the two orchids; among them, 125 compounds corresponded to LAE and 31 to CME. Three phenanthrene derivatives annotated in CME might be associated with its antinociceptive activity. CONCLUSION LAE and CME induced antinociceptive activity with the possible participation of the nitric oxide pathway. CME in combination with naproxen synergistically produces antinociceptive effects in the acetic acid test. The untargeted metabolomic analysis allowed for annotation of several compounds potentially involved in the therapeutic potential of two plants; among them, three phenanthrene derivatives might contribute to the observed antinociceptive activity.
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Affiliation(s)
- Eunice Yáñez-Barrientos
- Department of Chemistry, Natural and Exact Division Sciences, University of Guanajuato, Guanajuato, Guanajuato, Mexico.
| | | | - Kazimierz Wrobel
- Department of Chemistry, Natural and Exact Division Sciences, University of Guanajuato, Guanajuato, Guanajuato, Mexico.
| | - Katarzyna Wrobel
- Department of Chemistry, Natural and Exact Division Sciences, University of Guanajuato, Guanajuato, Guanajuato, Mexico.
| | - Alma Rosa Corrales-Escobosa
- Department of Chemistry, Natural and Exact Division Sciences, University of Guanajuato, Guanajuato, Guanajuato, Mexico.
| | - Angel Josabad Alonso-Castro
- Department of Pharmacy, Natural and Exact Division Sciences, University of Guanajuato, Guanajuato, Guanajuato, Mexico.
| | - Candy Carranza-Álvarez
- School of Professional Studies Huastec Zone, Autonomous University of San Luis Potosi, Ciudad Valles, S.L.P, Mexico.
| | - Amauri Ponce-Hernández
- School of Professional Studies Huastec Zone, Autonomous University of San Luis Potosi, Ciudad Valles, S.L.P, Mexico.
| | - Mario Alberto Isiordia-Espinoza
- Institute of Research in Medical Sciences, Department of Clinics, Division of Biomedical Sciences, Los Altos University Center, University of Guadalajara, Tepatitlán de Morelos, Mexico.
| | | | | | - Sarahí Luna-Rubio
- School of Professional Studies Huastec Zone, Autonomous University of San Luis Potosi, Ciudad Valles, S.L.P, Mexico.
| | - Juan Ramón Zapata-Morales
- Department of Pharmacy, Natural and Exact Division Sciences, University of Guanajuato, Guanajuato, Guanajuato, Mexico.
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Advances in Breeding, Bioprospecting, and In Vitro Culture of Laelia Orchid Species. HORTICULTURAE 2022. [DOI: 10.3390/horticulturae8020103] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Orchids (Orchidaceae) are plants that are highly appreciated by their beautiful flowers worldwide. Moreover, they represent a source of metabolites with applications in medicine and biotechnology. Within the Orchidaceae family, the Laelia genus is a group of orchid species from the Neotropics and is probably one of the most representative genera of America. Laelia orchids are cultivated by their splendid flowers and are widely used in orchid breeding. Here, we revise the use of the Laelia genus in orchid breeding and metabolite bioprospecting. We also analyze the use of plant tissue culture (PTC) as an alternative to conventional propagation and as a strategy for the recovery of those Laelia species threatened with extinction. We summarize and discuss the recent advances in the application of different PTC techniques for mass multiplication based on asymbiotic germination, organogenesis, protocorm-like bodies development, and somatic embryogenesis, and the advances of in vitro conservation by cryoconservation and the use of slow-growth promoting hormones. Finally, we suggest future directions and venues in research for Laelia species.
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Estrada-Soto S, Rendón-Vallejo P, Villalobos-Molina R, Millán-Pacheco C, Vázquez M, Hernández-Borja F, Hernández-Núñez E. 6-Amino-3-Methyl-4-(2-nitrophenyl)-1,4-Dihydropyrano[2,3-c]Pyrazole-5-Carbonitrile Shows Antihypertensive and Vasorelaxant Action via Calcium Channel Blockade. Drug Res (Stuttg) 2021; 72:53-60. [PMID: 34662917 DOI: 10.1055/a-1616-0156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Several 4H-pyran derivatives were designed and synthesized previously as vasorelaxant agents for potential antihypertensive drugs. In this context, the objective of the present investigation was to determine the functional mechanism of vasorelaxant action of 6-amino-3-methyl-4-(2-nitrophenyl)-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile (1: ) and its in vivo antihypertensive effect. Thus, compound 1: showed significant vasorelaxant action on isolated aorta rat rings pre-contracted with serotonin or noradrenaline, and the effect was not endothelium-dependent. Compound 1: induced a significant relaxant effect when aortic rings were contracted with KCl (80 mM), indicating that the main mechanism of action is related to L-type calcium channel blockade. Last was corroborated since compound 1: induced a significant concentration-dependent lowering of contraction provoked by cumulative CaCl2 adding. Moreover, compound 1: was capable to block the contraction induced by FPL 64176, a specific L-type calcium channel agonist, in a concentration-dependent manner. On the other hand, docking studies revealed that compound 1: interacts on two possible sites of the L-type calcium channel and it had better affinity energy (-7.80+/-0.00 kcal/mol on the best poses) than nifedipine (-6.86+/-0.14 kcal/mol). Finally, compound 1: (50 mg/kg) showed significant antihypertensive activity, lowering the systolic and diastolic blood pressure on spontaneously hypertensive rats (SHR) without modifying heart rate.
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Affiliation(s)
- Samuel Estrada-Soto
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, México
| | - Priscila Rendón-Vallejo
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, México
| | - Rafael Villalobos-Molina
- Unidad de Biomedicina, Facultad de Estudios Superiores-Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla, Estado de México, México
| | - César Millán-Pacheco
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, México
| | - MiguelA Vázquez
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Guanajuato, México
| | - Fernando Hernández-Borja
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Guanajuato, México
| | - Emanuel Hernández-Núñez
- Cátedra CONACyT, Departamento de Recursos del Mar, Centro de Investigación y de Estudios Avanzados del IPN, Unidad Mérida, Yucatán, Mexico
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Ferreira NP, Lucca DL, Diniz BV, Negri MF, Milaneze-Gutierre MA, de Oliveira SM, Pomini AM. Chemical, chemophenetic, and anticancer studies of Cattleya tigrina. BIOCHEM SYST ECOL 2021. [DOI: 10.1016/j.bse.2021.104303] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Liu J, Zhou H, Song L, Yang Z, Qiu M, Wang J, Shi S. Anthocyanins: Promising Natural Products with Diverse Pharmacological Activities. Molecules 2021; 26:molecules26133807. [PMID: 34206588 PMCID: PMC8270296 DOI: 10.3390/molecules26133807] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/10/2021] [Accepted: 06/15/2021] [Indexed: 12/15/2022] Open
Abstract
Anthocyanins are natural products that give color to plants. As natural plant pigments, anthocyanins also have a series of health-promoting benefits. Many researchers have proved that anthocyanins have therapeutic effects on diseases, such as circulatory, nervous, endocrine, digestive, sensory, urinary and immune systems. Additionally, a large number of studies have reported that anthocyanins have an anticancer effect through a wide range of anti-inflammatory and antioxidant effects. The anti-disease impact and mechanism of anthocyanins are diverse, so they have high research value. This review summarizes the research progress of anthocyanins on the pharmacological agents of different diseases to provide references for subsequent research.
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Affiliation(s)
- Jiaqi Liu
- Department of Pharmacy, Baotou Medical College, Baotou 014040, China; (J.L.); (H.Z.); (M.Q.)
| | - Hongbing Zhou
- Department of Pharmacy, Baotou Medical College, Baotou 014040, China; (J.L.); (H.Z.); (M.Q.)
- Institute of Bioactive Substance and Function of Mongolian Medicine and Chinese Materia Medica, Baotou Medical College, Baotou 014060, China; (L.S.); (Z.Y.)
| | - Li Song
- Institute of Bioactive Substance and Function of Mongolian Medicine and Chinese Materia Medica, Baotou Medical College, Baotou 014060, China; (L.S.); (Z.Y.)
| | - Zhanjun Yang
- Institute of Bioactive Substance and Function of Mongolian Medicine and Chinese Materia Medica, Baotou Medical College, Baotou 014060, China; (L.S.); (Z.Y.)
| | - Min Qiu
- Department of Pharmacy, Baotou Medical College, Baotou 014040, China; (J.L.); (H.Z.); (M.Q.)
| | - Jia Wang
- Department of Pharmacy, Baotou Medical College, Baotou 014040, China; (J.L.); (H.Z.); (M.Q.)
- Correspondence: (J.W.); (S.S.)
| | - Songli Shi
- Department of Pharmacy, Baotou Medical College, Baotou 014040, China; (J.L.); (H.Z.); (M.Q.)
- Institute of Bioactive Substance and Function of Mongolian Medicine and Chinese Materia Medica, Baotou Medical College, Baotou 014060, China; (L.S.); (Z.Y.)
- Correspondence: (J.W.); (S.S.)
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Verma T, Sinha M, Bansal N, Yadav SR, Shah K, Chauhan NS. Plants Used as Antihypertensive. NATURAL PRODUCTS AND BIOPROSPECTING 2021; 11:155-184. [PMID: 33174095 PMCID: PMC7981375 DOI: 10.1007/s13659-020-00281-x] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 10/31/2020] [Indexed: 05/03/2023]
Abstract
Hypertension is a critical health problem and worse other cardiovascular diseases. It is mainly of two types: Primary or essential hypertension and Secondary hypertension. Hypertension is the primary possibility feature for coronary heart disease, stroke and renal vascular disease. Herbal medicines have been used for millions of years for the management and treatment of hypertension with minimum side effects. Over aim to write this review is to collect information on the anti-hypertensive effects of natural herbs in animal studies and human involvement as well as to recapitulate the underlying mechanisms, from the bottom of cell culture and ex-vivo tissue data. According to WHO, natural herbs/shrubs are widely used in increasing order to treat almost all the ailments of the human body. Plants are the regular industrial units for the invention of chemical constituents, they used as immunity booster to enhance the natural capacity of the body to fight against different health problems as well as herbal medicines and food products also. Eighty percent population of the world (around 5.6 billion people) consume medicines from natural plants for major health concerns. This review provides a bird's eye analysis primarily on the traditional utilization, phytochemical constituents and pharmacological values of medicinal herbs used to normalize hypertension i.e. Hibiscus sabdariffa, Allium sativum, Andrographis paniculata, Apium graveolens, Bidenspilosa, Camellia sinensis, Coptis chinensis, Coriandrum sativum, Crataegus spp., Crocus sativus, Cymbopogon citrates, Nigella sativa, Panax ginseng,Salviaemiltiorrhizae, Zingiber officinale, Tribulus terrestris, Rauwolfiaserpentina, Terminalia arjuna etc.
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Affiliation(s)
- Tarawanti Verma
- I.K. Gujral Punjab Technical University (IKGPTU), Jalandhar, Punjab India
| | - Manish Sinha
- Laureate Institute of Pharmacy, Kathog, Jwalamukhi, Kangra, Himachal Pradesh India
| | - Nitin Bansal
- Department of Pharmacology, ASBASJSM College of Pharmacy, BELA, Ropar, Punjab India
| | - Shyam Raj Yadav
- Department of Chemistry, S.P. Jain College (Veer Kunwar Singh University, Ara), Sasaram, Bihar India
| | - Kamal Shah
- Institute of Pharmaceutical Research, GLA University, NH#2, Mathura, Uttar Pradesh 281406 India
| | - Nagendra Singh Chauhan
- Drugs Testing Laboratory Avam Anusandhan Kendra, 1st Floor Govt. Ayurvedic Hospital Building, Govt. Ayurvedic College Campus G.E. Road, Raipur, Chhattisgarh 492010 India
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Metchi Donfack MF, Atsamo AD, Temdié Guemmogne RJ, Ngouateu Kenfack OB, Dongmo AB, Dimo T. Antihypertensive Effects of the Vitex cienkowskii (Verbenaceae) Stem-Bark Extract on L-NAME-Induced Hypertensive Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2021; 2021:6668919. [PMID: 33747111 PMCID: PMC7954626 DOI: 10.1155/2021/6668919] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/05/2021] [Accepted: 02/23/2021] [Indexed: 02/06/2023]
Abstract
Vitex cienkowskii stem-bark is used in Cameroonian traditional medicine to treat cardiovascular diseases including hypertension. In previous studies, the methanol/methylene chloride stem-bark extract of Vitex cienkowskii (MMVC) showed a preventive activity in L-NAME-induced hypertension and improved blood pressure of spontaneously hypertensive rats. The present study investigated the curative effects in L-NAME-induced hypertensive rats (LNHR). Hypertension was induced in rats by oral administration of L-NAME (40 mg/kg/day) for 28 days. The animals were divided into 2 groups: one group of 5 rats receiving distilled water (10 ml/kg) and another 20 rats receiving L-NAME. At the end of 4 weeks of administration of L-NAME, the animals were divided into 4 groups of 5 rats each: one group of hypertensive rats receiving distilled water, another one receiving captopril (25 mg/kg), and two groups of hypertensive rats receiving MMVC at doses of 200 and 400 mg/kg, respectively. Body weight, food, and water intake were measured weekly. At the end of the treatment, blood pressure and heart rate were recorded by invasive method. Whole heart, left ventricle, kidneys, and liver were weighed. The effects of plant extract on lipid profile and oxidative stress markers, as well as markers of hepatic and renal functions were assessed spectrophotometrically according to well described protocols. Results show that L-NAME significantly increases the mean arterial blood pressure (MABP), atherogenic index, lipid profile, and creatinine and transaminase activities of normotensive rats. MMVC significantly reduced the blood pressure in LNHR. Body weight, food and water intake, left ventricular hypertrophy, antioxidant level, renal and hepatic markers, and lipid profile were improved by the treatment with MMVC. The curative effect of MMVC on L-NAME-induced hypertension is probably related to its antihypertensive, hypolipidemic, and antioxidant properties. These results confirmed the use of Vitex cienkowskii for the treatment of hypertension in traditional medicine.
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Affiliation(s)
- Mireille Flaure Metchi Donfack
- Department of Animal Biology and Physiology, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Albert Donatien Atsamo
- Department of Animal Biology and Physiology, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Roméo Joël Temdié Guemmogne
- Department of Biological Sciences, Faculty of Science, University of Ngaoundéré, P.O. Box 454, Ngaoundéré, Cameroon
| | - Omer Bébé Ngouateu Kenfack
- Department of Animal Biology and Physiology, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Alain Bertrand Dongmo
- Department of Animal Biology, Faculty of Science, University of Douala, P.O. Box 24157, Douala, Cameroon
| | - Théophile Dimo
- Department of Animal Biology and Physiology, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
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Ren L, Wang YZ, Zhang W, Zhou R, Zhao M, Tang ZS, Sun J, Zhang DB. Triculata A, a novel compound from Tricyrtis maculata (D. Don) J. F. Macbr. with biological properties. Nat Prod Res 2020; 35:3729-3737. [PMID: 32154735 DOI: 10.1080/14786419.2020.1736059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A novel compound, triculata A (1), and seven known compounds were obtained from the Tricyrtis maculata (D. Don) J. F. Macbr.. The structure of the new compound was determined by extensive spectroscopic methods, and its absolute configuration was assigned by single-crystal X-ray diffraction analysis. Compound 1 features a rare naphtho[b,c]pyran carbon skeleton that was found in nature for the first time. Compounds 2-4, 6 and 7 showed potential vasodilatory effects with EC50 values ranging from 7.3 to 111.3 μM. Compounds 1, 3-5 and 7 possessed remarkable antioxidant capacity evaluated by DPPH and ABTS assays.
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Affiliation(s)
- Li Ren
- Shaanxi Collaborative Innovation Center of Chinese Medicine Resources Industrialization, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi Innovative Drug Research Center, Shaanxi University of Chinese Medicine, Xianyang, P.R. China
| | - Yun-Ze Wang
- Shaanxi Collaborative Innovation Center of Chinese Medicine Resources Industrialization, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi Innovative Drug Research Center, Shaanxi University of Chinese Medicine, Xianyang, P.R. China
| | - Wei Zhang
- Shaanxi Collaborative Innovation Center of Chinese Medicine Resources Industrialization, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi Innovative Drug Research Center, Shaanxi University of Chinese Medicine, Xianyang, P.R. China
| | - Rui Zhou
- Shaanxi Collaborative Innovation Center of Chinese Medicine Resources Industrialization, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi Innovative Drug Research Center, Shaanxi University of Chinese Medicine, Xianyang, P.R. China
| | - Ming Zhao
- Department of Basic Medicine, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Zhi-Shu Tang
- Shaanxi Collaborative Innovation Center of Chinese Medicine Resources Industrialization, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi Innovative Drug Research Center, Shaanxi University of Chinese Medicine, Xianyang, P.R. China
| | - Jing Sun
- Shaanxi Collaborative Innovation Center of Chinese Medicine Resources Industrialization, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi Innovative Drug Research Center, Shaanxi University of Chinese Medicine, Xianyang, P.R. China
| | - Dong-Bo Zhang
- Shaanxi Collaborative Innovation Center of Chinese Medicine Resources Industrialization, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi Innovative Drug Research Center, Shaanxi University of Chinese Medicine, Xianyang, P.R. China
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Mata R, Figueroa M, Navarrete A, Rivero-Cruz I. Chemistry and Biology of Selected Mexican Medicinal Plants. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2019; 108:1-142. [PMID: 30924013 DOI: 10.1007/978-3-030-01099-7_1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Herbal medicines are an integral element of alternative medical care in Mexico, and the best testimony to their efficacy and cultural value is their persistence in contemporary Mexican marketplaces where the highest percentages of medicinal and aromatic plants are sold. This chapter summarizes current trends in research on medicinal plants in Mexico, with emphasis on work carried out at the authors' laboratories. The most relevant phytochemical and pharmacological profiles of a selected group of plants used widely for treating major national health problems are described.From this contribution, it is evident that in the last five decades a significant amount of research on medicinal plants has been performed by Mexican scientists. Such efforts have led to the publication of many research papers in noted peer-reviewed journals and technical books. The isolation and structural characterization of hundreds of bioactive secondary metabolites have been accomplished, and most importantly, these studies have tended to support the ethnomedical uses of many different species. A multidisciplinary approach for investigating these plants has led to an increased emphasis on areas such as phytopharmacology, phytotoxicology, quality control, regulation, and conservation issues for these valuable resources. The medicinal plants analyzed so far have shown a very broad chemical diversity of their constituents, which have a high potential for exhibiting novel mechanistic effects biologically. The chapter shows also that there is need to conduct additional clinical studies on herbal drugs, in particular because the longstanding traditional evidence for their safety is not always sufficient to assure their rational use. There is also need to move to "omics" approaches for investigating the holistic effect and the influence of groups of phytochemicals on the whole organism. Mexican scientists may be expected to have bright prospects in this regard, which will imbue medicinal plant research with a new dynamism in the future.
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Affiliation(s)
- Rachel Mata
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México, México.
| | - Mario Figueroa
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México, México.
| | - Andrés Navarrete
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Isabel Rivero-Cruz
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México, México
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Rojas-Olivos A, Solano-Gómez R, Alexander-Aguilera A, Jiménez-Estrada M, Zilli-Hernández S, Lagunez-Rivera L. Effect of Prosthechea karwinskii (Orchidaceae) on obesity and dyslipidemia in Wistar rats. ALEXANDRIA JOURNAL OF MEDICINE 2017. [DOI: 10.1016/j.ajme.2016.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Affiliation(s)
- Alejandra Rojas-Olivos
- Instituto Politécnico Nacional, CIIDIR Oaxaca, Hornos 1003, Santa Cruz Xoxocotlán, Oaxaca, 71230, Mexico
| | - Rodolfo Solano-Gómez
- Instituto Politécnico Nacional, CIIDIR Oaxaca, Hornos 1003, Santa Cruz Xoxocotlán, Oaxaca, 71230, Mexico
| | - Alfonso Alexander-Aguilera
- Facultad de Bioanálisis, Universidad Veracruzana, Carmen Serdán s/n , Col. Flores Magón, Veracruz, Veracruz, 91700, Mexico
- Escuela de Medicina, Universidad Cristóbal Colón, Carr. Veracruz-Medellin s/n , Col. Puente Moreno, Boca del Río, Veracruz, 94271, Mexico
| | - Manuel Jiménez-Estrada
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Del. Coyoacán, 04510 México, D.F., Mexico
| | - Stefan Zilli-Hernández
- Escuela de Medicina, Universidad Cristóbal Colón, Carr. Veracruz-Medellin s/n , Col. Puente Moreno, Boca del Río, Veracruz, 94271, Mexico
| | - Luicita Lagunez-Rivera
- Instituto Politécnico Nacional, CIIDIR Oaxaca, Hornos 1003, Santa Cruz Xoxocotlán, Oaxaca, 71230, Mexico
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Gas Chromatography-Triple Quadrupole Mass Spectrometry Analysis and Vasorelaxant Effect of Essential Oil from Protium heptaphyllum (Aubl.) March. BIOMED RESEARCH INTERNATIONAL 2017; 2017:1928171. [PMID: 28951867 PMCID: PMC5603114 DOI: 10.1155/2017/1928171] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 07/26/2017] [Indexed: 01/06/2023]
Abstract
The Protium heptaphyllum species, also known as Almécega, produces an oily resin, used in folk medicine as an analgesic and anti-inflammatory agent, in healing, and as an expectorant, which is rich in pentacyclic triterpenes and essential oils. In this study, the essential oil obtained by hydrodistillation of Almécega's resin was analyzed by gas chromatography-triple quadrupole mass spectrometry and evaluated for chemical composition and vasorelaxant activity in rat superior mesenteric artery. The main constituents determined by gas chromatography-triple quadrupole mass spectrometry were limonene, p-cineole, and o-cymene. In intact rings precontracted with phenylephrine (Phe 1 μM), EOPh (3–750 μg/mL) induced relaxation, and the essential oil had a concentration-dependent vasorelaxant effect, without involvement of endothelial mediators.
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Flores-Flores A, Hernández-Abreu O, Rios MY, León-Rivera I, Aguilar-Guadarrama B, Castillo-España P, Perea-Arango I, Estrada-Soto S. Vasorelaxant mode of action of dichloromethane-soluble extract from Agastache mexicana and its main bioactive compounds. PHARMACEUTICAL BIOLOGY 2016; 54:2807-2813. [PMID: 27252080 DOI: 10.1080/13880209.2016.1184690] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 04/26/2016] [Indexed: 05/29/2023]
Abstract
CONTEXT Agastache mexicana (Kunth) Lint & Epling (Lamiaceae) is a plant used in Mexican traditional medicine for the treatment of hypertension, anxiety and so on. OBJECTIVE To determine the vasorelaxant effect and functional mode of action of dichloromethane-soluble extract from A. mexicana (DEAm) and isolate the constituents responsible for the pharmacological activity. MATERIALS AND METHODS Extracts were prepared from the aerial parts of A. mexicana (225.6 g) by successive maceration with hexane, dichloromethane and methanol (three times for 72 h at room temperature), respectively. DEAm (0.01-1000 μg/mL), fractions (at 174.27 μg/mL), acacetin and ursolic acid (UA) (0.5-500 μM) were evaluated to determine their vasorelaxant effect on ex vivo rat aorta ring model. In vivo UA antihypertensive action was determined on spontaneously hypertensive rats. RESULTS AND DISCUSSION DEAm induced a significant vasorelaxant effect in concentration-dependent and endothelium-independent manners (EC50 = 174.276 ± 5.98 μg/mL) by a calcium channel blockade and potassium channel opening. Bio-guided fractionation allowed to isolate acacetin (112 mg), UA (2.830 g), acacetin/oleanolic acid (OA) (M1) (155 mg) and acacetin/OA/UA (M2) (1.382 g) mixtures, which also showed significant vasodilation. UA significantly diminished diastolic (80 mmHg) and systolic blood pressure (120 mmHg), but heart rate was not modified. CONCLUSION DEAm produced significant vasorelaxant action by myogenic control cation. The presence of acacetin, OA and UA into the extract was substantial for the relaxant activity of DEAm. In vivo antihypertensive action of UA corroborates the use of A. mexicana as an antihypertensive agent on Mexican folk medicine.
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Affiliation(s)
- Angélica Flores-Flores
- a Facultad de Farmacia, Universidad Autónoma del Estado de Morelos , Cuernavaca , Morelos , Mexico
| | - Oswaldo Hernández-Abreu
- a Facultad de Farmacia, Universidad Autónoma del Estado de Morelos , Cuernavaca , Morelos , Mexico
| | - María Yolanda Rios
- b Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos , Cuernavaca , Morelos , Mexico
| | - Ismael León-Rivera
- b Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos , Cuernavaca , Morelos , Mexico
| | - Berenice Aguilar-Guadarrama
- b Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos , Cuernavaca , Morelos , Mexico
| | - Patricia Castillo-España
- c Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos , Cuernavaca , Morelos , Mexico
| | - Irene Perea-Arango
- c Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos , Cuernavaca , Morelos , Mexico
| | - Samuel Estrada-Soto
- a Facultad de Farmacia, Universidad Autónoma del Estado de Morelos , Cuernavaca , Morelos , Mexico
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Venkateshwarlu E, Bhava BSS, Kumar RS, Venkateshwar RJ, Gouthami E, Umasankar K. Evaluation of diuretic activity of Syzygium cumini and its effect on prostaglandin system. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s13596-015-0179-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Qu Z, Zhang J, Huo L, Chen H, Li H, Fan Y, Gao W. Antihypertensive and vasorelaxant effects of Rhizoma corydalis and its active component tetrahydropalmatine via NO/cGMP pathway and calcium channel blockade in isolated rat thoracic aorta. RSC Adv 2015. [DOI: 10.1039/c5ra17756a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
The vasorelaxant effects of RC and THPviathe NO/cGMP pathway and calcium channel blockade in isolated rat thoracic aorta are explored.
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Affiliation(s)
- Zhuo Qu
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency
- School of Pharmaceutical Science and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Jingze Zhang
- Department of Pharmacy
- Logistics College of Chinese People’s Armed Police Forces
- Tianjin Key Laboratory of Cardiovascular Remodeling and Target Organ Injury
- Tianjin 300162
- China
| | - Liqin Huo
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency
- School of Pharmaceutical Science and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Hong Chen
- Department of Pharmacy
- Logistics College of Chinese People’s Armed Police Forces
- Tianjin Key Laboratory of Cardiovascular Remodeling and Target Organ Injury
- Tianjin 300162
- China
| | - Hongfa Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency
- School of Pharmaceutical Science and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Yaya Fan
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency
- School of Pharmaceutical Science and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Wenyuan Gao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency
- School of Pharmaceutical Science and Technology
- Tianjin University
- Tianjin 300072
- China
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Morales-Sánchez V, Rivero-Cruz I, Laguna-Hernández G, Salazar-Chávez G, Mata R. Chemical composition, potential toxicity, and quality control procedures of the crude drug of Cyrtopodium macrobulbon. JOURNAL OF ETHNOPHARMACOLOGY 2014; 154:790-797. [PMID: 24818583 DOI: 10.1016/j.jep.2014.05.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 05/05/2014] [Accepted: 05/05/2014] [Indexed: 05/29/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cyrtopodium macrobulbon ("cañaveral") has been long used in Mexican traditional medicine for the treatment of painful urinary ailments ("mal de orin") in men. This study was conducted (i) to establish the potential acute toxicity and the antinociceptive activity of some preparations of Cyrtopodium macrobulbon, in order to demonstrate its preclinical efficacy for treating symptoms of "mal de orin"; and (ii) to determine the chemical composition and quality control parameters of this medicinal orchid. MATERIALS AND METHODS The antinociceptive effect was assessed using the acetic acid-induced writhing and the hot-plate tests. Investigation of the acute toxicity was accomplished by the Lorke method. The organic extract (OE) was subjected to conventional phytochemical study using chromatographic conventional procedures. The volatile components profile of the species was accomplished via GC-MS analysis of HS-SPME-adsorbed compounds. Furthermore, an HPLC method to quantify ephemeranthol B (10) was developed and validated according to the International Conference on Harmonization Guidelines. Microscopic anatomy studies were performed using light and scanning electron microscopies. Finally, a potential distribution map was generated using the MaxEnt modeling method. RESULTS AE and OE were not toxic to mice since the LD50 was higher than 5000 mg/kg. OE was only active in the acetic acid-induced writhing assay at the doses of 100 and 316 mg/kg. Conventional phytochemical analysis of OE led to the isolation and characterization of n-hexacosyl-trans-p-coumarate (1), n-octacosyl-trans-p-coumarate (2), n-triacontyl-trans-p-coumarate (3), 4-methoxy-benzyl alcohol (4), 4-hydroxybenzaldehyde (5), 1,5,7-trimethoxy-9,10-dihydrophenanthrene-2,6-diol (6), confusarin (7), gigantol (8), batatasin III (9), and ephemeranthol B (10). The major volatile components identified by HS-SPME analysis were 6,10,14-trimethyl-2-pentadecanone, eucalyptol (11), and isobornyl formate. An HPLC analytical method for the quantification of compound 10 in the plant was developed and fully validated for selectivity, accuracy, and precision. The microscopic studies revealed that the epidermal tissue displayed a layer of enlarged, crenate and cell thin-walled cells with a thickened cuticle; these cells are described for first time for this species. The potential distribution map generated revealed that this species is widespread in Mexico from Sinaloa to Merida states. CONCLUSIONS The results of the pharmacological studies tend to support the traditional use of Cyrtopodium macrobulbon for "mal de orin"; the presence of compounds 8, 9, and 11 with known antinociceptive activity might be related with the pharmacological effect demonstrated. The HPLC and microscopic analyses developed in this work will be valuable tools for quality control purposes for this plant.
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Affiliation(s)
| | - Isabel Rivero-Cruz
- Departamento de Farmacia, Facultad de Química, Mexico City 04510, Mexico
| | | | - Gerardo Salazar-Chávez
- Instituto de Biología, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
| | - Rachel Mata
- Departamento de Farmacia, Facultad de Química, Mexico City 04510, Mexico.
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Hernández F, Sánchez A, Rendón-Vallejo P, Millán-Pacheco C, Alcaraz Y, Delgado F, Vázquez MA, Estrada-Soto S. Synthesis, ex vivo and in silico studies of 3-cyano-2-pyridone derivatives with vasorelaxant activity. Eur J Med Chem 2013; 70:669-76. [PMID: 24212125 DOI: 10.1016/j.ejmech.2013.10.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Revised: 10/03/2013] [Accepted: 10/07/2013] [Indexed: 11/29/2022]
Abstract
An efficient and simple synthesis of 3-cyano-2-pyridone derivatives (6a-f) through 3,4-dihydropyridin-2-one oxidation process is described. A greener method to synthesize 3,4-dihydropyridin-2-one has also been developed by rearranging 4H-pyran (4a-f) derivatives in aqueous medium applying H₂SO₄ as the catalyst source and microwave irradiation. The vasorelaxant activity of 3-cyano-2-pyridone derivatives (6a-f) was proved on isolated thoracic aorta rat rings with and without endothelium (+E and -E, respectively) pre-contracted with noradrenaline (0.1 μM). All compounds exhibited significant concentration-dependent and endothelium-independent vasorelaxant effects being the nitro derivatives (6a and f) and compound 6d the most potent with EC₅₀ of 7, 4.4 and 5 μM, respectively. Finally, a previously described 3D model of the central pore of human L-type calcium channel (LCC), modified to be on agreement with NCBI sequence NP_005174.2 for subunit alpha-1F isoform 1, was used to dock most active compounds. 6a, d and f lowest affinity energy structures were found docked in the same cavity conformed by IS6, IS5, IP and IIS6 helices. Nifedipine lowest energy structure was found in the cavity formed by IIS6, IIS5, IIP and IIIS6. Although nifedipine docked in a different cavity, the superposition of both, allowed us to observe that they were almost the same cavities, indicating that there exist subtle steric differences that lead to a different docking for nifedipine. All compounds docked with similar free energy of binding.
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Affiliation(s)
- Fernando Hernández
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Gto. 36050, Mexico
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Jorge VG, Ángel JRL, Adrián TS, Francisco AC, Anuar SG, Samuel ES, Ángel SO, Emmanuel HN. Vasorelaxant activity of extracts obtained from Apium graveolens: possible source for vasorelaxant molecules isolation with potential antihypertensive effect. Asian Pac J Trop Biomed 2013; 3:776-9. [PMID: 24075341 DOI: 10.1016/s2221-1691(13)60154-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2013] [Revised: 08/28/2013] [Accepted: 09/17/2013] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE To investigate vasorelaxant effect of organic extracts from Apium graveolens (A. graveolens) which is a part of a group of plants subjected to pharmacological and phytochemical study with the purpose of offering it as an ideal source for obtaining lead compounds for designing new therapeutic agents with potential vasorelaxant and antihypertensive effects. METHODS An ex vivo method was employed to assess the vasorelaxant activity. This consisted of using rat aortic rings with and without endothelium precontracted with norepinephrine. RESULTS All extracts caused concentration-dependent relaxation in precontracted aortic rings with and without endothelium; the most active extracts were Dichloromethane and Ethyl Acetate extracts from A. graveolens. These results suggested that secondary metabolites responsible for the vasorelaxant activity belong to a group of compounds of medium polarity. Also, our evidence showed that effect induced by dichloromethane and ethyl acetate extracts from A. graveolens is mediated probably by calcium antagonism. CONCLUSIONS A. graveolens represents an ideal source for obtaining lead compounds for designing new therapeutic agents with potential vasorelaxant and antihypertensive effects.
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Affiliation(s)
- Vergara-Galicia Jorge
- Division of Health Sciences, University of Quintana roo, Chetumal, Quintana Roo, Mexico.
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Rendón-Vallejo P, Hernández-Abreu O, Vergara-Galicia J, Millán-Pacheco C, Mejía A, Ibarra-Barajas M, Estrada-Soto S. Ex vivo study of the vasorelaxant activity induced by phenanthrene derivatives isolated from Maxillaria densa. JOURNAL OF NATURAL PRODUCTS 2012; 75:2241-2245. [PMID: 23234371 DOI: 10.1021/np300508v] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The phenanthrenes gymnopusin (1), fimbriol A (2), and erianthridin (3) from Maxillaria densa were found to induce significant relaxant effects in a concentration-dependent and endothelium-independent manner on aortic rings precontracted with norepinephrine (NE, 0.1 μM) and KCl (80 mM). Compound 1 was the most active and also inhibited the cumulative concentration-response contraction of NE or CaCl(2). Contractions induced by FPL 64176, an agonist of L-type voltage-dependent calcium channels, were blocked by 1. The potassium channel blockers glibenclamide and TEA (tetraethylammonium) reduced the relaxations induced by 1. Nevertheless, the effect of 1 was not modified by 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one, a specific soluble guanylate cyclase inhibitor. The functional results obtained suggest that 1 induces relaxation through an endothelium-independent pathway by the control of cationic channels (calcium channel blockade and potassium channel opening) in the myogenic response of rat aortic rings.
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Affiliation(s)
- Priscila Rendón-Vallejo
- Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Colonia Chamilpa, 62209. Cuernavaca, Morelos, México
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Estrada-Soto S, Sánchez-Recillas A, Navarrete-Vázquez G, Castillo-España P, Villalobos-Molina R, Ibarra-Barajas M. Relaxant effects of Artemisia ludoviciana on isolated rat smooth muscle tissues. JOURNAL OF ETHNOPHARMACOLOGY 2012; 139:513-518. [PMID: 22155473 DOI: 10.1016/j.jep.2011.11.041] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Revised: 11/19/2011] [Accepted: 11/22/2011] [Indexed: 05/29/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Artemisia ludoviciana spp. mexicana (Willd. Ex.) Spring D.D. Keck (Asteraceae), known as "estafiate" is employed for the treatment of diarrhea, dysentery, parasites, abdominal pain, vomiting, stomach ache, and also as antispasmodic agent. The aim of the present study was to evaluate the relaxant effect of hexanic (HEAl), dichloromethanic (DEAl) and methanolic (MEAl) extracts on isolated trachea, ileum and aorta rat rings, and to establish the tracheo-relaxant mode of action of DEAl. MATERIALS AND METHODS All extracts were investigated based on their capacity of to inhibit the rat ileum spontaneous contraction, to relax contraction induced by noradrenaline (0.1 μM) on endothelium-intact and endothelium-denuded thoracic aorta rat rings, and also to inhibit contraction provoked by carbachol (1 μM) on rat trachea. RESULTS Organic extracts had no spasmolytic action on ileum strips compared to positive control (papaverine, p<0.05). On the other hand, all extracts induced a significant concentration- and partial endothelium-dependent vasorelaxant activity. Extracts also showed significant relaxant effect on pre-contracted tracheal tissue in a concentration-dependent manner. In last two experiments, DEAl was the most potent and efficient extract; however, it was less potent than papaverine and theophylline, used as positive controls (p<0.05). In tracheal preparation, DEAl shifted to the right, in a parallel manner, the concentration-response curves induced by carbachol (p<0.05). Also, DEAl induced a significant relaxant effect on the contraction produced by potassium chloride (KCl, 80 mM). Pre-incubation with 1-H-[1,2,4]-oxadiazolo-[4,3a]-quinoxalin-1-one (ODQ, 10 μM), indomethacin (10 μM), N(ω)-nitro-L-arginine methyl ester (L-NAME, 10 μM), glibenclamide (10 μM) and 2-aminopyridine (2-AP, 100 μM) did not modify the DEAl-relaxant curves. CONCLUSIONS Functional experiments suggest that the most active extract, DEAl, induced its relaxant effect by possible muscarinic receptors antagonism and calcium channel blockade in tracheal rings. On the other hand, significant vasorelaxant activity showed by DEAl is partially endothelium-dependent. Finally, spasmolytic activity induced by the extracts in the rat ileum was not significant, which suggests that the antidiarrheic effect of the plant is related to antimicrobial and antiparasitic properties previously described.
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Affiliation(s)
- Samuel Estrada-Soto
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Morelos, Mexico.
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Hernández-Abreu O, Durán-Gómez L, Best-Brown R, Villalobos-Molina R, Rivera-Leyva J, Estrada-Soto S. Validated liquid chromatographic method and analysis of content of tilianin on several extracts obtained from Agastache mexicana and its correlation with vasorelaxant effect. JOURNAL OF ETHNOPHARMACOLOGY 2011; 138:487-91. [PMID: 21982792 DOI: 10.1016/j.jep.2011.09.041] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Revised: 09/22/2011] [Accepted: 09/23/2011] [Indexed: 05/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE To optimize the obtention of tilianin, an antihypertensive flavonoid isolated from Agastache mexicana (Lamiaceae), a medicinal plant used in Mexico for the treatment of hypertension. Also, a validated HPLC method to quantify tilianin from different extracts, obtained by several extraction methods, was developed. MATERIALS AND METHODS The aerial parts of Agastache mexicana were dried at different temperatures (22, 40, 50, 90, 100 and 180°C) and the dry material was extracted with methanol by maceration to compare the content of the active constituent tilianin in the samples. Furthermore, EtOH:H(2)O (7:3), infusion and decoction extracts were prepared from air-dried samples at room temperature to compare the content and composition of the different extraction methods. Moreover, an ex vivo vasorelaxant test on endothelium-intact aortic rat rings was conducted, in order to correlate the presence of tilianin with the activity of each extract. RESULTS Higher concentration and amounts of tilianin were determined from chromatograms in the obtained methanolic extracts from plant material dried at 90, 50, 40 and 22°C, followed by 100°C; however, lower concentrations were observed in dried at 180°C and EtOH:H(2)O (7:3). It is worth to notice that methanolic extracts with higher amount of tilianin were the most potent vasorelaxant extracts, even though these extracts were less potent than carbachol, a positive control used. Finally, decoction, infusion and EtOH:H(2)O (7:3) extracts did not show any vasorelaxant effect. CONCLUSION Results suggest that extracts with higher concentration of tilianin possess the best vasorelaxant activity, which allowed us to have a HPLC method for future quality control for this medicinal plant.
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Affiliation(s)
- Oswaldo Hernández-Abreu
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Colonia Chamilpa, 62209 Cuernavaca, Morelos, Mexico
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Torres-Piedra M, Figueroa M, Hernández-Abreu O, Ibarra-Barajas M, Navarrete-Vázquez G, Estrada-Soto S. Vasorelaxant effect of flavonoids through calmodulin inhibition: Ex vivo, in vitro, and in silico approaches. Bioorg Med Chem 2011; 19:542-6. [DOI: 10.1016/j.bmc.2010.10.063] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2010] [Revised: 10/22/2010] [Accepted: 10/30/2010] [Indexed: 10/18/2022]
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