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Thoa NTK, Ban NK, Trang DT, Linh TM, Giang VH, Nhiem NX, Van Kiem P. Ecdysteroids from leaves of Vitex trifolia. VIETNAM JOURNAL OF CHEMISTRY 2018. [DOI: 10.1002/vjch.201800006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Ninh Khac Ban
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
| | - Do Thi Trang
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
| | - Tran My Linh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
| | - Vu Huong Giang
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
| | - Nguyen Xuan Nhiem
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
| | - Phan Van Kiem
- Faculty of Basic Science; Hanoi University of Mining and Geology
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de Brum TF, Zadra M, Piana M, Boligon AA, Fröhlich JK, de Freitas RB, Stefanello ST, Froeder ALF, Belke BV, Nunes LT, da Silva Jesus R, Machado MM, Teixeira da Rocha JB, Soares FAA, Athayde ML. HPLC analysis of phenolics compounds and antioxidant capacity of leaves of Vitex megapotamica (Sprengel) Moldenke. Molecules 2013; 18:8342-57. [PMID: 23863774 PMCID: PMC6269793 DOI: 10.3390/molecules18078342] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Revised: 07/10/2013] [Accepted: 07/10/2013] [Indexed: 12/19/2022] Open
Abstract
Vitex megapotamica (Sprengel) Moldenke belongs to the Verbenaceae family and is popularly known as "tarumã". The antioxidant capacity of fractions and crude extract from the leaves of V. megapotamica were determined in this study through the capacity to remove reactive species and phenolic compounds were quantified in the various fractions. The IC50 (DPPH) ranged from 14.17 ± 0.76 to 37.63 ± 0.98 µg/mL. The ethyl acetate fraction might contain the strongest lipid peroxidation inhibitory compounds with an IC50 of 16.36 ± 5.09 µg/mL, being also the one with the highest content of polyphenols (522.4 ± 1.12 mg/g), flavonoids (220.48 ± 0.30 mg/g) and condensed tannins (3.86 ± 0.53 mg/g). Compounds quantified by HPLC/DAD in the crude extract and fractions were chlorogenic and rosmarinic acids. Higher dosages of the extracts were more effective in reducing levels of plasma protein carbonyls and were also shown to be able to remove reactive species by a 2',7'-dichlorofluorescein diacetate assay, reducing oxidative stress in all tested fractions. Results obtained indicated that V. megapotamica exhibits good potential to prevent diseases caused by the overproduction of free radicals and it might also be used as a potential source of natural antioxidant agents.
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Affiliation(s)
- Thiele Faccim de Brum
- Post-Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria, Camobi Campus, Santa Maria, RS, 97105-900, Brazil
| | - Marina Zadra
- Post-Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria, Camobi Campus, Santa Maria, RS, 97105-900, Brazil
| | - Mariana Piana
- Post-Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria, Camobi Campus, Santa Maria, RS, 97105-900, Brazil
| | - Aline Augusti Boligon
- Post-Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria, Camobi Campus, Santa Maria, RS, 97105-900, Brazil
| | - Janaina Kieling Fröhlich
- Post-Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria, Camobi Campus, Santa Maria, RS, 97105-900, Brazil
| | - Robson Borba de Freitas
- Post-Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria, Camobi Campus, Santa Maria, RS, 97105-900, Brazil
| | - Sílvio Terra Stefanello
- Post-Graduate Program in Biochemical Toxicology, Federal University of Santa Maria, Camobi Campus, Santa Maria, RS, 97105-900, Brazil
| | - Amanda Luana Forbrig Froeder
- Post-Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria, Camobi Campus, Santa Maria, RS, 97105-900, Brazil
| | - Bianca Vargas Belke
- Pharmacy Course, Federal University of Santa Maria, Camobi Campus, Santa Maria, RS 97105-900, Brazil
| | - Letícia Teixeira Nunes
- Pharmacy Course, Federal University of Santa Maria, Camobi Campus, Santa Maria, RS 97105-900, Brazil
| | - Roberta da Silva Jesus
- Post-Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria, Camobi Campus, Santa Maria, RS, 97105-900, Brazil
| | - Michel Mansur Machado
- Post-Graduate Program in Pharmaceutical Sciences, Federal University of Pampa-UNIPAMPA, Uruguaiana, RS 97500-970, Brazil
| | - João Batista Teixeira da Rocha
- Post-Graduate Program in Biochemical Toxicology, Federal University of Santa Maria, Camobi Campus, Santa Maria, RS, 97105-900, Brazil
| | - Félix Alexandre Antunes Soares
- Post-Graduate Program in Biochemical Toxicology, Federal University of Santa Maria, Camobi Campus, Santa Maria, RS, 97105-900, Brazil
| | - Margareth Linde Athayde
- Post-Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria, Camobi Campus, Santa Maria, RS, 97105-900, Brazil
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de Brum TF, Boligon AA, Frohlich JK, Schwanz TG, Zadra M, Piana M, Froeder ALF, Athayde ML. Composition and antioxidant capacity of the essential oil of leaves ofVitex megapotamica(Sprengel) Moldenke. Nat Prod Res 2013; 27:767-70. [DOI: 10.1080/14786419.2012.696258] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Zanatta L, de Sousa E, Cazarolli LH, Junior AC, Pizzolatti MG, Szpoganicz B, Silva FRMB. Effect of crude extract and fractions from Vitex megapotamica leaves on hyperglycemia in alloxan-diabetic rats. JOURNAL OF ETHNOPHARMACOLOGY 2007; 109:151-5. [PMID: 16930892 DOI: 10.1016/j.jep.2006.07.019] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2004] [Revised: 07/10/2006] [Accepted: 07/18/2006] [Indexed: 05/11/2023]
Abstract
The effect of the crude extract, ethyl acetate and n-butanol fractions from Vitex megapotamica (Spreng) Moldenke on glycemia was investigated in diabetic rats. Oral administration of crude extract significantly reduced serum glucose levels in both normal and diabetic animals. In normal rats, serum glucose lowering was observed with 400 and 800 mg/kg at 2 and 2-3h, respectively after oral crude extract treatment. Nevertheless, the hypoglycemic effect of Vitex megapotamica in diabetic rats was evident at 1 and 2h and from 1 to 3h after treatment with 400 and 800 mg/kg, respectively. The ethyl acetate as well as n-butanol fractions were able to diminish glycemia in diabetic animals. The ethyl acetate fraction (400 and 800 mg/kg) produced the maximum hypoglycemic effect (28 and 20%, respectively) in diabetic rats and the same dose of the n-butanol fraction reduced the hyperglycemia only by 11% at 1h after treatment. Additionally, in hyperglycemic normal rats neither crude extract nor ethyl acetate fraction modified the glucose tolerance and the known tolbutamide effect on insulin release was clearly observed in this group. Thus, this study shows that Vitex megapotamica has an anti-hyperglycemic action, is able to ameliorate the diabetic state and, probably, is a source of hypoglycemic compounds.
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Affiliation(s)
- Leila Zanatta
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Cx. Postal 5069, CEP 88040-970-Florianópolis, SC, Brazil
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Abstract
Six new iridoids, 6-O-alpha-L-(2"-O-, 3"-O-, 4"-O-tribenzoyl)rhamnopyranosylcatalpol, 6-O-alpha-L-(2"-O-, 3"-O-dibenzoyl, 4"-O-cis-p-coumaroyl)rhamnopyranosylcatalpol, 6-O-alpha-L-(2"-O-, 3"-O-dibenzoyl, 4"-O-trans-p-coumaroyl)rhamnopyranosylcatalpol, 6-O-alpha-L-(2"-O-benzoyl, 3"-O-trans-p-coumaroyl)rhamnopyranosylcatalpol, 6-O-alpha-L-(2"-O-, 3"-O-dibenzoyl)rhamnopyranosylcatalpol, and gmephiloside as well as five known monoacyl and diacyl rhamnopyranosylcatalpol derivatives were isolated from the aerial parts of Gmelina philippensis. Their structures were established by spectroscopic means. Additionally, the known iridoids catalpol, geniposidic acid, gardoside, and 8-epi-loganic acid were identified and quantified by GC and GC-MS. The taxonomic significance of rhamnopyranosylcatalpol derivatives and iridoid acids as chemical characters is discussed.
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Affiliation(s)
- E Helfrich
- Institut für Pharmazeutische Biologie, Albert-Ludwigs-Universität, Freiburg, Germany
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