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The effect of quercetin on cerulein-induced acute pancreatitis / Efeito da quercetina sobre a pancreatite induzida por ceruleína
Kahraman, Ahmet; Vurmaz, Ayhan; Koca, Halit Buğra; Uyar, Hilmi; Çat, Abdulkadir; Tokyol, Çigdem; Polat, Coskun; Köken, Tülay.
  • Kahraman, Ahmet; Afyon Kocatepe University. Faculty of Medicine. Department of Medical Biochemistry. TR
  • Vurmaz, Ayhan; Afyon Kocatepe University. Faculty of Medicine. Department of Medical Biochemistry. TR
  • Koca, Halit Buğra; Afyon Kocatepe University. Faculty of Medicine. Department of Medical Biochemistry. TR
  • Uyar, Hilmi; Afyon Kocatepe University. Faculty of Medicine. Department of General Surgery. TR
  • Çat, Abdulkadir; Afyon Kocatepe University. Faculty of Medicine. Department of Medical Biochemistry. TR
  • Tokyol, Çigdem; Afyon Kocatepe University. Faculty of Medicine. Department of Medical Patology Afyonkarahisar. TR
  • Polat, Coskun; Afyon Kocatepe University. Faculty of Medicine. Department of General Surgery. TR
  • Köken, Tülay; Afyon Kocatepe University. Faculty of Medicine. Department of Medical Biochemistry. TR
MedicalExpress (São Paulo, Online) ; 4(5)Sept.-Oct. 2017. tab, graf
Article in English | LILACS | ID: biblio-894367
ABSTRACT

OBJECTIVE:

The aim of this study was to evaluate the protective and therapeutic effects of quercetin on pancreatic injury in cerulein-induced acute pancreatitis.

METHOD:

Thirty-two rats were randomly divided into four groups, eight per group (CT) untreated controls, (CER) treated with cerulein, 50 µg/kg body weight; (Q+CER) pre-treatment with quercetin, 100 mg/kg body weight, followed by cerulein, 50 µg/kg; (CER+Q) post-treatment, cerulein followed by quercetin, same doses. Cerulein was divided into four doses, given at 1-hour intervals by intraperitoneal injection. Quercetin was given either 1-hour before (in pre-treatment group) or 1-hour after (in post-treatment group) cerulein. Pancreatic malondialdehyde (MDA), carbonyl, myeloperoxidase (MPO), tumor necrosis factor-alpha (TNF-a), interleukin-6 (IL-6), reduced and oxidized glutathione (GSH and GSSG, respectively) were measured. Histology of the pancreas was studied.

RESULTS:

(1) MDA, carbonyl, MPO, TNF-a and IL-6 levels were significantly higher in CER vs CT rats. (2) MDA, carbonyl, MPO and TNF-α decreased significantly in pre-treated rats vs. CER. (3) MDA, MPO, TNF-α, IL-6 were significantly lower in post-treated rats vs. CER. (4) The reduced vs. oxidized glutathione ratio (GSH/GSSG) of was significantly lower CER vs. CT rats. (5) Pre- and post-treatment with quercetin significantly increased this ratio. (6) Pancreatic histology showed that quercetin had no significant effect on the histological image of the pâncreas

CONCLUSION:

These results suggest that quercetin can attenuate the severity of cerulein-induced acute pancreatitis by acting as an antioxidant and anti-inflammatory agent and combating oxidative stress. Further studies are needed to clearly explain its utility on acute pancreatitis.
RESUMO

OBJETIVO:

O objetivo deste estudo foi avaliar os efeitos protetores e terapêuticos da quercetina na lesão pancreática da pancreatite aguda induzida por ceruleína.

MÉTODO:

Trinta e dois ratos foram divididos aleatoriamente em quatro grupos, oito por grupo (CT) controles não tratados (CER) tratados com ceruleína, 50 µg/kg de peso corporal; (Q+CER) pré-tratamento com quercetina, 100 mg / kg de peso corporal, seguido de ceruleína, 50 µg/kg; (CER+Q) pós-tratamento, ceruleína seguida de quercetina, mesmas doses. A ceruleína foi dividida em quatro doses, administradas a intervalos de 1 hora por injeção intraperitoneal. A quercetina foi administrada 1 hora antes (no grupo de pré-tratamento) ou 1 hora após (no pós-tratamento) a administração de ceruleína. Foram medidos o malondialdeído pancreático (MDA), carbonilo, mieloperoxidase (MPO), fator de necrose tumoral alfa (TNF-a), interleucina-6 (IL-6), glutationa reduzida e oxidada (GSH e GSSG, respetivamente). Foi estudada a histologia do pâncreas.

RESULTADOS:

Os níveis de MDA, carbonila, MPO, TNF-a e IL-6 foram significativamente maiores nos ratos CER vs. CT. MDA, carbonila, MPO e TNF-α diminuíram significativamente em ratos pré-tratados versus CER. MDA, MPO, TNF-α, IL-6 também foram significativamente menores em ratos pós-tratados versus CER. A proporção reduzida de glutationa oxidada (GSH/GSSG) foi significativamente menor ratos CER vs. CT; pré e pós-tratamento com quercetina aumentaram significativamente esta proporção. A histologia pancreática mostrou que a quercetina não teve efeito morfológico significativo.

CONCLUSÃO:

Estes resultados sugerem que a quercetina pode atenuar a gravidade da pancreatite aguda induzida por ceruleína, atuando como agente antioxidante e anti-inflamatório e combater o estresse oxidativo. Mais estudos são necessários para explicar claramente suas utilidades na pancreatite aguda.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Pancreatitis / Quercetin / Ceruletide / Oxidative Stress Limits: Animals Language: English Journal: MedicalExpress (São Paulo, Online) Journal subject: Medicine Year: 2017 Type: Article Affiliation country: Turkey Institution/Affiliation country: Afyon Kocatepe University/TR

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Full text: Available Index: LILACS (Americas) Main subject: Pancreatitis / Quercetin / Ceruletide / Oxidative Stress Limits: Animals Language: English Journal: MedicalExpress (São Paulo, Online) Journal subject: Medicine Year: 2017 Type: Article Affiliation country: Turkey Institution/Affiliation country: Afyon Kocatepe University/TR