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2014
DOI: 10.1016/j.fob.2014.01.005
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DHEA supplementation in ovariectomized rats reduces impaired glucose‐stimulated insulin secretion induced by a high‐fat diet

Abstract: Dehydroepiandrosterone (DHEA) and the dehydroepiandrosterone sulfate (DHEA-S) are steroids produced mainly by the adrenal cortex. There is evidence from both human and animal models suggesting beneficial effects of these steroids for obesity, diabetes mellitus, hypertension, and osteoporosis, conditions associated with the post-menopausal period. Accordingly, we hypothesized that DHEA supplementation in ovariectomized (OVX) female rats fed a high-fat diet would maintain glucose-induced insulin secretion (GSIS)… Show more

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Cited by 22 publications
(12 citation statements)
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“…The hormone E 2 is decreased and LH is increased in the OVX mice (Veras et al 2014). PPE (10 mg/kg) significantly increased the serum E 2 level in the OVX mice (P!0.05; Fig.…”
Section: Effect Of Placenta On Menopausal Symptomsmentioning
confidence: 83%
“…The hormone E 2 is decreased and LH is increased in the OVX mice (Veras et al 2014). PPE (10 mg/kg) significantly increased the serum E 2 level in the OVX mice (P!0.05; Fig.…”
Section: Effect Of Placenta On Menopausal Symptomsmentioning
confidence: 83%
“…More recently an exceptionally high value around five has been reported (Sakano et al 2014, plus their personal communication). However none of them has been able to take the place of isolated pancreatic islets that may maintain GSIS values in the range from 5 to 10 (Pound et al 2013;Ohara-Imaizumi et al 2013;Veras et al 2014). Considering the difficulty of availability of isolated pancreatic islets, however, it is still an intense and urgent need to develop a protocol for the in vitro production of insulin-secreting cells with as high GSIS value as possible.…”
Section: Introductionmentioning
confidence: 99%
“…A ingestão de alimentos aumentada associada à diminuição do gasto energético em decorrência ao sedentarismo disparou a prevalência da obesidade, que agora é considerada uma epidemia global (James, 2008;Wild et al, 2004;World Health Organization, 2000 Krishnan et al, 2014;Lovejoy et al, 2008), quanto em modelos experimentais (Camporez et al, 2013(Camporez et al, , 2011Veras et al, 2014), confirmando o importante papel dos hormônios sexuais no controle do peso corporal.…”
Section: Importância Dos Estrógenos E Menopausaunclassified
“…Em muitos casos, está associada a uma complexa rede de vias de sinalização, incluindo redução da fosforilação em tirosina do IR e seus substratos (IRS1/2), bem como redução da fosforilação em serina da AKT nos tecidos-alvos da insulina (Boura-Halfon, Zick, 2009;Hotamisligil et al, 1996;Veras et al, 2014). Em situações de obesidade, há uma elevação nos níveis de citocinas inflamatórias, como o fator de necrose tumoral alfa (TNF-α), que podem ativar diversas serinas quinases (JNK e IKKβ).…”
Section: Importância Dos Estrógenos E Menopausaunclassified
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