Hypoglycaemic activity of Bauhinia holophylla through GSK3-beta inhibition and glycogenesis activation
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1080/13880209.2019.1599962 http://hdl.handle.net/11449/185627 |
Resumo: | Context: Bauhinia L. species, including Bauhinia holophylla (Bong.) Steud. (Fabaceae), have traditionally been used to treat diabetes. Bauhinia is a complex botanical genus, and the indiscriminate use of the diverse Bauhinia species is reflected in the experimental divergence of their medicinal potential. Objective: The hypoglycaemic and hypolipidaemic effects, molecular mechanism of action and phytochemical properties of an authentic extract of B. holophylla leaves were evaluated. Materials and methods: A phytochemical study of a 70% EtOH extract was performed using FIA-ESI-IT-MS/MSn and HPLC-PAD-ESI-IT-MS. The extract (200 or 400 mg/kg b.w.) was administered for 14 days to streptozotocin-induced diabetic Swiss mice. Glucose tolerance and insulin sensitivity, blood parameters, gene and protein expression, and the in vivo and in vitro inhibition of intestinal glucosidases were assessed. Results: HPLC-PAD-ESI-IT-MS analysis identified flavonoid derivatives of quercetin, myricetin, luteolin and kaempferol. Treatment with 400 mg/kg of the extract reduced blood glucose (269.0 +/- 32.4 mg/dL vs. 468.0 +/- 32.2 mg/dL for diabetic animals), improved glucose tolerance, decreased cholesterol and triglyceride levels, and increased the mRNA expression of proteins involved in glucogenesis in the liver and muscle, such as PI3-K/Akt, GS, GSK3-beta (ser-9), AMPK and Glut4. The activity of intestinal maltase was inhibited in vitro (IC50: 43.0 mu g/mL for the extract compared to 516.4 mu g/mL for acarbose) and in vivo. Discussion and conclusions: Treatment with B. holophylla was associated with a marked hypoglycaemic effect through the stimulation of glycogenesis and inhibition of gluconeogenesis and intestinal glucose absorption, without increasing basal insulinaemia. |
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Hypoglycaemic activity of Bauhinia holophylla through GSK3-beta inhibition and glycogenesis activationAntidiabeticFabaceaeflavonoid-O-glycosidesliverplasma lipidsContext: Bauhinia L. species, including Bauhinia holophylla (Bong.) Steud. (Fabaceae), have traditionally been used to treat diabetes. Bauhinia is a complex botanical genus, and the indiscriminate use of the diverse Bauhinia species is reflected in the experimental divergence of their medicinal potential. Objective: The hypoglycaemic and hypolipidaemic effects, molecular mechanism of action and phytochemical properties of an authentic extract of B. holophylla leaves were evaluated. Materials and methods: A phytochemical study of a 70% EtOH extract was performed using FIA-ESI-IT-MS/MSn and HPLC-PAD-ESI-IT-MS. The extract (200 or 400 mg/kg b.w.) was administered for 14 days to streptozotocin-induced diabetic Swiss mice. Glucose tolerance and insulin sensitivity, blood parameters, gene and protein expression, and the in vivo and in vitro inhibition of intestinal glucosidases were assessed. Results: HPLC-PAD-ESI-IT-MS analysis identified flavonoid derivatives of quercetin, myricetin, luteolin and kaempferol. Treatment with 400 mg/kg of the extract reduced blood glucose (269.0 +/- 32.4 mg/dL vs. 468.0 +/- 32.2 mg/dL for diabetic animals), improved glucose tolerance, decreased cholesterol and triglyceride levels, and increased the mRNA expression of proteins involved in glucogenesis in the liver and muscle, such as PI3-K/Akt, GS, GSK3-beta (ser-9), AMPK and Glut4. The activity of intestinal maltase was inhibited in vitro (IC50: 43.0 mu g/mL for the extract compared to 516.4 mu g/mL for acarbose) and in vivo. Discussion and conclusions: Treatment with B. holophylla was associated with a marked hypoglycaemic effect through the stimulation of glycogenesis and inhibition of gluconeogenesis and intestinal glucose absorption, without increasing basal insulinaemia.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Sao Paulo State Univ, Inst Biosci, Botucatu, SP, BrazilOswaldo Cruz Inst FIOCRUZ, Lab Expt & Computat Biochem Drugs, Rio De Janeiro, BrazilSao Paulo State Univ, Dept Biol Sci, Bauru, SP, BrazilSao Paulo State Univ, Dept Phys Educ, Bauru, SP, BrazilSao Paulo State Univ, Inst Biosci, Botucatu, SP, BrazilSao Paulo State Univ, Dept Biol Sci, Bauru, SP, BrazilSao Paulo State Univ, Dept Phys Educ, Bauru, SP, BrazilFAPESP: 2009/52237-9FAPESP: 2013/10708-0FAPESP: 2016/18628-4Taylor & Francis LtdUniversidade Estadual Paulista (Unesp)Oswaldo Cruz Inst FIOCRUZDe Paula Camaforte, Nathalia Ap [UNESP]Saldanha, Luiz Leonardo [UNESP]Ponce Vareda, Priscilla Maria [UNESP]Rezende-Neto, Joao M.Senger, Mario R.Delgado, Aislan Q. [UNESP]Morgan, Henrique J. N. [UNESP]Violato, Natalia Moretti [UNESP]Pieroni, Lais Goyos [UNESP]Dokkedal, Anne Ligia [UNESP]Silva, Floriano P.Bosqueiro, Jose Roberto [UNESP]2019-10-04T12:36:58Z2019-10-04T12:36:58Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article269-279http://dx.doi.org/10.1080/13880209.2019.1599962Pharmaceutical Biology. Abingdon: Taylor & Francis Ltd, v. 57, n. 1, p. 269-279, 2019.1388-0209http://hdl.handle.net/11449/18562710.1080/13880209.2019.1599962WOS:000465130400001Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPharmaceutical Biologyinfo:eu-repo/semantics/openAccess2024-04-24T18:53:11Zoai:repositorio.unesp.br:11449/185627Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:00:17.990221Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Hypoglycaemic activity of Bauhinia holophylla through GSK3-beta inhibition and glycogenesis activation |
title |
Hypoglycaemic activity of Bauhinia holophylla through GSK3-beta inhibition and glycogenesis activation |
spellingShingle |
Hypoglycaemic activity of Bauhinia holophylla through GSK3-beta inhibition and glycogenesis activation De Paula Camaforte, Nathalia Ap [UNESP] Antidiabetic Fabaceae flavonoid-O-glycosides liver plasma lipids |
title_short |
Hypoglycaemic activity of Bauhinia holophylla through GSK3-beta inhibition and glycogenesis activation |
title_full |
Hypoglycaemic activity of Bauhinia holophylla through GSK3-beta inhibition and glycogenesis activation |
title_fullStr |
Hypoglycaemic activity of Bauhinia holophylla through GSK3-beta inhibition and glycogenesis activation |
title_full_unstemmed |
Hypoglycaemic activity of Bauhinia holophylla through GSK3-beta inhibition and glycogenesis activation |
title_sort |
Hypoglycaemic activity of Bauhinia holophylla through GSK3-beta inhibition and glycogenesis activation |
author |
De Paula Camaforte, Nathalia Ap [UNESP] |
author_facet |
De Paula Camaforte, Nathalia Ap [UNESP] Saldanha, Luiz Leonardo [UNESP] Ponce Vareda, Priscilla Maria [UNESP] Rezende-Neto, Joao M. Senger, Mario R. Delgado, Aislan Q. [UNESP] Morgan, Henrique J. N. [UNESP] Violato, Natalia Moretti [UNESP] Pieroni, Lais Goyos [UNESP] Dokkedal, Anne Ligia [UNESP] Silva, Floriano P. Bosqueiro, Jose Roberto [UNESP] |
author_role |
author |
author2 |
Saldanha, Luiz Leonardo [UNESP] Ponce Vareda, Priscilla Maria [UNESP] Rezende-Neto, Joao M. Senger, Mario R. Delgado, Aislan Q. [UNESP] Morgan, Henrique J. N. [UNESP] Violato, Natalia Moretti [UNESP] Pieroni, Lais Goyos [UNESP] Dokkedal, Anne Ligia [UNESP] Silva, Floriano P. Bosqueiro, Jose Roberto [UNESP] |
author2_role |
author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Oswaldo Cruz Inst FIOCRUZ |
dc.contributor.author.fl_str_mv |
De Paula Camaforte, Nathalia Ap [UNESP] Saldanha, Luiz Leonardo [UNESP] Ponce Vareda, Priscilla Maria [UNESP] Rezende-Neto, Joao M. Senger, Mario R. Delgado, Aislan Q. [UNESP] Morgan, Henrique J. N. [UNESP] Violato, Natalia Moretti [UNESP] Pieroni, Lais Goyos [UNESP] Dokkedal, Anne Ligia [UNESP] Silva, Floriano P. Bosqueiro, Jose Roberto [UNESP] |
dc.subject.por.fl_str_mv |
Antidiabetic Fabaceae flavonoid-O-glycosides liver plasma lipids |
topic |
Antidiabetic Fabaceae flavonoid-O-glycosides liver plasma lipids |
description |
Context: Bauhinia L. species, including Bauhinia holophylla (Bong.) Steud. (Fabaceae), have traditionally been used to treat diabetes. Bauhinia is a complex botanical genus, and the indiscriminate use of the diverse Bauhinia species is reflected in the experimental divergence of their medicinal potential. Objective: The hypoglycaemic and hypolipidaemic effects, molecular mechanism of action and phytochemical properties of an authentic extract of B. holophylla leaves were evaluated. Materials and methods: A phytochemical study of a 70% EtOH extract was performed using FIA-ESI-IT-MS/MSn and HPLC-PAD-ESI-IT-MS. The extract (200 or 400 mg/kg b.w.) was administered for 14 days to streptozotocin-induced diabetic Swiss mice. Glucose tolerance and insulin sensitivity, blood parameters, gene and protein expression, and the in vivo and in vitro inhibition of intestinal glucosidases were assessed. Results: HPLC-PAD-ESI-IT-MS analysis identified flavonoid derivatives of quercetin, myricetin, luteolin and kaempferol. Treatment with 400 mg/kg of the extract reduced blood glucose (269.0 +/- 32.4 mg/dL vs. 468.0 +/- 32.2 mg/dL for diabetic animals), improved glucose tolerance, decreased cholesterol and triglyceride levels, and increased the mRNA expression of proteins involved in glucogenesis in the liver and muscle, such as PI3-K/Akt, GS, GSK3-beta (ser-9), AMPK and Glut4. The activity of intestinal maltase was inhibited in vitro (IC50: 43.0 mu g/mL for the extract compared to 516.4 mu g/mL for acarbose) and in vivo. Discussion and conclusions: Treatment with B. holophylla was associated with a marked hypoglycaemic effect through the stimulation of glycogenesis and inhibition of gluconeogenesis and intestinal glucose absorption, without increasing basal insulinaemia. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-04T12:36:58Z 2019-10-04T12:36:58Z 2019-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1080/13880209.2019.1599962 Pharmaceutical Biology. Abingdon: Taylor & Francis Ltd, v. 57, n. 1, p. 269-279, 2019. 1388-0209 http://hdl.handle.net/11449/185627 10.1080/13880209.2019.1599962 WOS:000465130400001 |
url |
http://dx.doi.org/10.1080/13880209.2019.1599962 http://hdl.handle.net/11449/185627 |
identifier_str_mv |
Pharmaceutical Biology. Abingdon: Taylor & Francis Ltd, v. 57, n. 1, p. 269-279, 2019. 1388-0209 10.1080/13880209.2019.1599962 WOS:000465130400001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Pharmaceutical Biology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
269-279 |
dc.publisher.none.fl_str_mv |
Taylor & Francis Ltd |
publisher.none.fl_str_mv |
Taylor & Francis Ltd |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1808128883486097408 |