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Pereira-de-Morais L, Silva ADA, da Silva RER, Ferraz Navarro DMDA, Melo Coutinho HD, Menezes IRAD, Kerntopf MR, Cunha FABD, Leal-Cardoso JH, Barbosa R. Myorelaxant action of the Dysphania ambrosioides (L.) Mosyakin & Clemants essential oil and its major constituent α-terpinene in isolated rat trachea. Food Chem 2020; 325:126923. [PMID: 32387952 DOI: 10.1016/j.foodchem.2020.126923] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 04/25/2020] [Accepted: 04/25/2020] [Indexed: 01/06/2023]
Abstract
This study aimed to investigate the myorelaxant action of the Dysphania ambrosioides essential oil (EODa) and its major constituent α-terpinene on tracheal smooth muscle isolated from rats. In tracheal smooth muscle ex vivo, in organ baths, isometric contractions recordings were done in order to evaluated the effect of EODa (1-1000 μg/mL) and α-terpinene (1-3000 μg/mL) on the following parameters: basal tone, contractions evoked by potassium (KCl 60 mM), acetylcholine (ACh 10 μM) or serotonin (5-HT 10 μM). The EODa and its major constituent α-terpinene, did not statistically alter basal tone; however, they induced myorelaxant effects on top of contractions induced by KCl, ACh and 5-HT. EODa and α-terpinene also inhibited the contractions induced by barium in presence of High [K+] (80 mM). The data suggest that the relaxation induced by these agents is caused by the inhibition of L-type VGCC, inhibiting the inward Ca2+ current through these channels, but does not exclude the possibility of participation of other mechanisms. Results from this study also suggest the EODa, due to their efficacy on relaxation of the respiratory tract, posses a therapeutic potential as a antispasmodic agent for respiratory tract.
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Affiliation(s)
- Luís Pereira-de-Morais
- Regional University of Cariri, Pimenta Campus, 63105-010 Crato, CE, Brazil; State University of Ceará, Itapery Campus, 60741-000 Fortaleza, CE, Brazil.
| | | | - Renata Evaristo Rodrigues da Silva
- Biological Chemistry Department, Postgraduate Program in Biological Chemistry, Brazil; Regional University of Cariri, Pimenta Campus, 63105-010 Crato, CE, Brazil
| | | | - Henrique Douglas Melo Coutinho
- Biological Chemistry Department, Postgraduate Program in Biological Chemistry, Brazil; Regional University of Cariri, Pimenta Campus, 63105-010 Crato, CE, Brazil
| | - Irwin Rose Alencar de Menezes
- Biological Chemistry Department, Postgraduate Program in Biological Chemistry, Brazil; Regional University of Cariri, Pimenta Campus, 63105-010 Crato, CE, Brazil
| | - Marta Regina Kerntopf
- Biological Chemistry Department, Postgraduate Program in Biological Chemistry, Brazil; Regional University of Cariri, Pimenta Campus, 63105-010 Crato, CE, Brazil
| | - Francisco Assis Bezerra da Cunha
- Biological Chemistry Department, Postgraduate Program in Biological Chemistry, Brazil; Regional University of Cariri, Pimenta Campus, 63105-010 Crato, CE, Brazil
| | | | - Roseli Barbosa
- Biological Chemistry Department, Postgraduate Program in Biological Chemistry, Brazil; Regional University of Cariri, Pimenta Campus, 63105-010 Crato, CE, Brazil
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Characterization of Inhibitory Effectiveness in Hyperpolarization-Activated Cation Currents by a Group of ent-Kaurane-Type Diterpenoids from Croton tonkinensis. Int J Mol Sci 2020; 21:ijms21041268. [PMID: 32070065 PMCID: PMC7072998 DOI: 10.3390/ijms21041268] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 02/07/2020] [Accepted: 02/09/2020] [Indexed: 12/24/2022] Open
Abstract
Croton is an extensive flowering plant genus in the spurge family, Euphorbiaceae. Three croton compounds with the common ent-kaurane skeleton have been purified from Croton tonkinensis. Methods: We examined any modifications of croton components (i.e., croton-01 [ent-18-acetoxy-7α-hydroxykaur-16-en-15-one], croton-02 [ent-7α,14β-dihydroxykaur-16-en-15-one] and croton-03 [ent-1β-acetoxy-7α,14β-dihydroxykaur-16-en-15-one] on either hyperpolarization-activated cation current (Ih) or erg-mediated K+ current identified in pituitary tumor (GH3) cells and in rat insulin-secreting (INS-1) cells via patch-clamp methods. Results: Addition of croton-01, croton-02, or croton-03 effectively and differentially depressed Ih amplitude. Croton-03 (3 μM) shifted the activation curve of Ih to a more negative potential by approximately 11 mV. The voltage-dependent hysteresis of Ih was also diminished by croton-03 administration. Croton-03-induced depression of Ih could not be attenuated by SQ-22536 (10 μM), an inhibitor of adenylate cyclase, but indeed reversed by oxaliplatin (10 μM). The Ih in INS-1 cells was also depressed effectively by croton-03. Conclusion: Our study highlights the evidence that these ent-kaurane diterpenoids might conceivably perturb these ionic currents through which they have high influence on the functional activities of endocrine or neuroendocrine cells.
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Natural Antispasmodics: Source, Stereochemical Configuration, and Biological Activity. BIOMED RESEARCH INTERNATIONAL 2018; 2018:3819714. [PMID: 30402474 PMCID: PMC6196993 DOI: 10.1155/2018/3819714] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 08/28/2018] [Indexed: 12/27/2022]
Abstract
Natural products with antispasmodic activity have been used in traditional medicine to alleviate different illnesses since the remote past. We searched the literature and compiled the antispasmodic activity of 248 natural compounds isolated from terrestrial plants. In this review, we summarized all the natural products reported with antispasmodic activity until the end of 2017. We also provided chemical information about their extraction as well as the model used to test their activities. Results showed that members of the Lamiaceae and Asteraceae families had the highest number of isolated compounds with antispasmodic activity. Moreover, monoterpenoids, flavonoids, triterpenes, and alkaloids were the chemical groups with the highest number of antispasmodic compounds. Lastly, a structural comparison of natural versus synthetic compounds was discussed.
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Santos GKN, Dutra KA, Lira CS, Lima BN, Napoleão TH, Paiva PMG, Maranhão CA, Brandão SSF, Navarro DMAF. Effects of Croton rhamnifolioides essential oil on Aedes aegypti oviposition, larval toxicity and trypsin activity. Molecules 2014; 19:16573-87. [PMID: 25317582 PMCID: PMC6271117 DOI: 10.3390/molecules191016573] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 09/15/2014] [Accepted: 09/26/2014] [Indexed: 11/17/2022] Open
Abstract
Although numerous reports are available concerning the larvicidal potential of essential oils, very few investigations have focused on their mechanisms of action. In the present study, we have investigated the chemical composition of the leaf oil of Croton rhamnifolioides during storage and its effects on oviposition and survival of larvae of the dengue fever mosquito Aedes aegypti. In addition, we have established a possible mechanism of action for the larvicidal activity of the essential oil. GC-MS analyses revealed marked differences in the composition of oil that had been freshly isolated and that of a sample that had been stored in a sealed amber-glass vial under refrigeration for three years. However, both fresh and stored oil exhibited substantial larvicidal activities with LC50 values of 122.35 and 89.03 ppm, respectively, and oviposition deterrent effects against gravid females at concentrations of 50 and 100 µg·mL-1. These results demonstrate that the larvicidal effect of the essential oil was unchanged during three years of storage even though its chemical composition altered. Hence, the essential oil could be used in the preparation of commercial products. In addition, we observed that the trypsin-like activity of mosquito larvae was inhibited in vitro by the essential oil of C. rhamnifolioides, suggesting that the larvicidal effect may be associated with inhibition of this enzyme.
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Affiliation(s)
- Geanne K N Santos
- Laboratório de Ecologia Química, Departamento de Química Fundamental, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Kamilla A Dutra
- Laboratório de Ecologia Química, Departamento de Química Fundamental, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Camila S Lira
- Laboratório de Ecologia Química, Departamento de Química Fundamental, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Bheatriz N Lima
- Laboratório de Ecologia Química, Departamento de Química Fundamental, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Thiago H Napoleão
- Laboratório de Glicoproteínas, Departamento de Bioquímica, Universidade Federal de Pernambuco, 50670-420 Recife, PE, Brazil
| | - Patrícia M G Paiva
- Laboratório de Glicoproteínas, Departamento de Bioquímica, Universidade Federal de Pernambuco, 50670-420 Recife, PE, Brazil
| | - Claudia A Maranhão
- Laboratório de Pesquisa e Desenvolvimento de Produtos Tecnológicos, Instituto Federal de Educação, Ciência e Tecnologia de Pernambuco, 50740-540 Recife, PE, Brazil
| | - Sofia S F Brandão
- Laboratório de Pesquisa e Desenvolvimento de Produtos Tecnológicos, Instituto Federal de Educação, Ciência e Tecnologia de Pernambuco, 50740-540 Recife, PE, Brazil
| | - Daniela M A F Navarro
- Laboratório de Ecologia Química, Departamento de Química Fundamental, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil.
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Melo I, Teixeira A, Sena Junior D, Santos H, Albuquerque M, Bandeira P, Rodrigues A, Braz-Filho R, Gusmão G, Silva J, Faria J, Bento R. FT-Raman and FTIR-ATR spectroscopies and DFT calculations of triterpene acetyl aleuritolic acid. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2013.11.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Afzal A, Oriqat G, Akram Khan M, Jose J, Afzal M. Chemistry and Biochemistry of Terpenoids fromCurcumaand Related Species. ACTA ACUST UNITED AC 2013. [DOI: 10.1080/22311866.2013.782757] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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