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Alkaloids in Erythrina by UPLC-ESI-MS and In Vivo Hypotensive Potential of Extractive Preparations

Merlugo, Liara ; Santos, Marí C. ; Sant’Anna, Liane S. ; Cordeiro, Everson W. F. ; Batista, Luiz A. C. ; Miotto, Silvia T. S. ; Garcia, Cássia V. ; Moreira, Cleci M. ; Mendez, Andreas S. L. De Tommasi, Nunziatina

Evidence-based complementary and alternative medicine, 2015-01, Vol.2015, p.959081-12 [Periódico revisado por pares]

United States: Hindawi Publishing Corporation

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  • Título:
    Alkaloids in Erythrina by UPLC-ESI-MS and In Vivo Hypotensive Potential of Extractive Preparations
  • Autor: Merlugo, Liara ; Santos, Marí C. ; Sant’Anna, Liane S. ; Cordeiro, Everson W. F. ; Batista, Luiz A. C. ; Miotto, Silvia T. S. ; Garcia, Cássia V. ; Moreira, Cleci M. ; Mendez, Andreas S. L.
  • De Tommasi, Nunziatina
  • Assuntos: Alkaloids ; Analysis ; Drug dosages ; Flavonoids ; Hypertension ; Isoflavones ; Mortality ; Rodents ; Solvents ; Studies
  • É parte de: Evidence-based complementary and alternative medicine, 2015-01, Vol.2015, p.959081-12
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
    Academic Editor: Nunziatina De Tommasi
  • Descrição: Erythrina species are used in popular medicine as sedative, anxiolytic, anti-inflammatory, and antihypertensive. In this work, we investigated the chemical composition of extracts obtained from leaves of E. falcata and E. crista-galli. The hypotensive potential of E. falcata and the mechanism of action were also studied. The extracts were obtained by maceration and infusion. The total content of phenolic compounds and flavonoids was estimated by spectrophotometric methods. The chemical constituents were studied performing a chromatographic analysis by UPLC-ESI-MS. For in vivo protocols, blood pressure and heart rate were measured by the invasive hemodynamic monitoring method. Different concentrations of extracts and drugs such as L-NAME, losartan, hexamethonium, and propranolol were administrated i.v. The results of total phenolic contents for E. falcata and E. crista-galli were 1.3193–1.4989 mgGAE/mL for maceration and 0.8771–0.9506 mgGAE/mL for infusion. In total flavonoids, the content was 7.7829–8.1976 mg RE/g for maceration and 9.3471–10.4765 RE mg/g for infusion. The chemical composition was based on alkaloids, suggesting the presence of erythristemine, 11β-methoxyglucoerysodine, erysothiopine, 11β-hydroxyerysodine-glucose, and 11-hydroxyerysotinone-rhamnoside. A potent dose-dependent hypotensive effect was observed for E. falcata, which may be related to the route of β-adrenergic receptors.
  • Editor: United States: Hindawi Publishing Corporation
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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