2013
DOI: 10.3748/wjg.v19.i38.6416
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Diabetic neuropathy: An evaluation of the use of quercetin in the cecum of rats

Abstract: In diabetes, quercetin exhibited a neuroprotective effect by maintaining the density of the general neuronal population but did not affect the density of the nNOS subpopulation.

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Cited by 45 publications
(34 citation statements)
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“…In the high‐fat diet‐fed mouse model excessive palmitoylcarnitine formation leading to energy depletion and oxidative stress are felt to be one of the mechanisms underlying neuronal loss . Quercitin is a powerful antioxidant that has been shown to prevent the reduction in enteric neuronal numbers in the cecum of diabetic rats . Examination of enteric ganglia obtained from colon biopsy specimen of diabetic patients through laser capture microdissection showed decreased levels of antioxidant Glutathione (GSH) and increased expression of superoxide dismutase mRNA which indicate increased oxidative stress.…”
Section: Introductionmentioning
confidence: 99%
“…In the high‐fat diet‐fed mouse model excessive palmitoylcarnitine formation leading to energy depletion and oxidative stress are felt to be one of the mechanisms underlying neuronal loss . Quercitin is a powerful antioxidant that has been shown to prevent the reduction in enteric neuronal numbers in the cecum of diabetic rats . Examination of enteric ganglia obtained from colon biopsy specimen of diabetic patients through laser capture microdissection showed decreased levels of antioxidant Glutathione (GSH) and increased expression of superoxide dismutase mRNA which indicate increased oxidative stress.…”
Section: Introductionmentioning
confidence: 99%
“…Diversos estudos reportam uma redução numérica e concomitante aumento no tamanho do corpo celular em neurônios de vários segmentos do trato gastrointestinal de animais diabéticos induzidos por STZ, tais como: estômago (FREGONESI et al, 2001), duodeno (BÜTTOW; MI-RANDA NETO; BAZOTTE, 1997;LOPES et al, 2012), jejuno (HERMES-ULIANA et al, 2013) íleo (HERNAN-DES et al, 2000;ZANONI et al, 2003;PEREIRA et al, 2011), colo proximal (ROMANO et al, 1996ROMANO;CARDOSO, 1996) e ceco (ZANONI et al, 1997;FERREIRA et al, 2013). Redução similar no número de neurônios também tem sido observado em ratos espontaneamente diabéticos (CHANDRASEKHARAN et al, 2011).…”
Section: Alterações No Número E Tamanho De Neurôniosunclassified
“…No sistema nervoso entérico, os neurônios exibem grande variedade na expressão de determinados neurotransmissores, que por sua vez, determinam seu código químico e sendo que muitos estudos descrevem alterações neste código mediante a neuropatia diabética (CHANDRASEKHA-RAN; SRINIVASAN, 2007;YARANDI;SRINIVASAN, 2014). Existem evidências de que as subpopulações neuronais respondem diferentemente ao diabetes, algumas exibem degeneração, outras alteram seu código neuroquímico sem ocorrer degeneração e ainda, outras não são afetadas (BE-LAI; BURNSTOCK, 1990;CHANDRASEKHARAN;SRINIVASAN, 2007;FERREIRA et al, 2013). Belai e Burnstock (1991) estudando os efeitos do diabetes induzido por STZ em nervos mioentéricos adrenérgicos e peptidérgicos no íleo e no colo distal de ratos, verificaram redução no nível de noradrenalina e elevação significativa do neuropeptídeo VIP no íleo.…”
Section: Alterações No Código Neuroquímico Dos Neurôniosunclassified
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