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Acetaminophen induces alterations to the renal tubular ultrastructure in a rat model of acute nephrotoxicity protected by resveratrol and quercetin / El acetaminofeno induce alteraciones en la ultraestructura tubular renal en un modelo de rata con nefrotoxicidad aguda protegida por resveratrol y quercetina
Haidara, Mohamed A; Al-Ani, Bahjat; Eid, Refaat A; Mohammed, Muataz E. D; Al-Hashem, Fahaid; Dallak, Mohammad.
Afiliação
  • Haidara, Mohamed A; King Khalid University. College of Medicine. Department of Physiology. Abha. SA
  • Al-Ani, Bahjat; King Khalid University. College of Medicine. Department of Physiology. Abha. SA
  • Eid, Refaat A; King Khalid University. College of Medicine. Department of Pathology. Abha. SA
  • Mohammed, Muataz E. D; King Khalid University. College of Medicine. Department of Physiology. Abha. SA
  • Al-Hashem, Fahaid; King Khalid University. College of Medicine. Department of Physiology. Abha. SA
  • Dallak, Mohammad; King Khalid University. College of Medicine. Department of Physiology. Abha. SA
Int. j. morphol ; 38(3): 585-591, June 2020. graf
Artigo em Inglês | LILACS | ID: biblio-1098291
Biblioteca responsável: CL1.1
ABSTRACT
Acetaminophen (also called paracetamol, or APAP) induced nephrotoxicity is reported after accidental or intentional ingestion of an overdose of the drug. Renal tubular ultrastructural alterations induced by APAP overdose associated with the induction of biomarkers of kidney injury have not been investigated before. Also, we investigated whether the combined polyphenolic anti-inflammatory and antioxidants agents, resveratrol (RES) and quercetin (QUR) can protect against APAP-induced acute kidney injury. The model group of rats received a single dose of APAP (2 g/kg), whereas the protective group of rats was pre-treated for 7 days with combined doses of RES (30 mg/kg) and QUR (50 mg/kg) before being given a single dose of APAP. All rats were then sacrificed one day post APAP ingestion. Harvested kidney tissues were prepared for transmission electron microscopy (TEM) staining and blood samples were assayed for urea, creatinine, and biomarkers of inflammation and oxidative stress. TEM images and blood chemistry analysis showed that APAP overdose induced kidney damage as demonstrated by substantial alterations to the proximal convoluted tubule ultrastructure, and a significant (p<0.05) increase in urea, creatinine, tumor necrosis factor-alpha (TNF-a), and malondialdehyde (MDA) blood levels, which were protected by RES+QUR. These findings indicate that APAP induces alterations to the renal tubular ultrastructure, which is inhibited by resveratrol plus quercetin, which also decreases blood levels of kidney injury biomarkers.
RESUMEN
El objetivo de este trabajo fue estudiar la nefrotoxicidad inducida por acetaminofeno (también llamado paracetamol o APAP) después de la ingestión accidental o intencional de una sobredosis de la droga. Las alteraciones ultraestructurales tubulares renales inducidas por sobredosis de APAP asociadas con la inducción de biomarcadores de daño renal no se han investigado. Además, estudiamos si los agentes combinados antiinflamatorios y antioxidantes polifenólicos, el resveratrol (RES) y la quercetina (QUR) pueden proteger contra la lesión renal aguda inducida por APAP. El grupo modelo de ratas recibió una dosis única de APAP (2 g / kg), mientras que el grupo protector de ratas se trató previamente durante 7 días con dosis combinadas de RES (30 mg / kg) y QUR (50 mg / kg) antes de recibir una dosis única de APAP. Todas las ratas se sacrificaron un día después de la ingestión de APAP. Los tejidos renales fueron preparados para el análisis a través de la microscopía electrónica de transmisión (MET). En las muestras de sangre se determinaron la urea, creatinina y los biomarcadores de inflamación y estrés oxidativo. Las imágenes MET y el análisis químico de la sangre mostraron que la sobredosis de APAP inducía daño renal, como lo demuestran las alteraciones sustanciales en la ultraestructura del túbulo contorneado proximal, y además, de un aumento significativo (p <0,05) de la urea, creatinina, factor de necrosis tumoral alfa y niveles sanguíneos de malondialdehído, protegidos por RES + QUR. Estos hallazgos indican que APAP induce alteraciones en la ultraestructura tubular renal, inhibida por el resveratrol más quercetina, que también disminuye los niveles sanguíneos de biomarcadores de daño renal.
Assuntos


Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: LILACS Assunto principal: Quercetina / Resveratrol / Túbulos Renais / Acetaminofen Tipo de estudo: Estudo prognóstico Limite: Animais Idioma: Inglês Revista: Int. j. morphol Assunto da revista: Anatomia Ano de publicação: 2020 Tipo de documento: Artigo País de afiliação: Arábia Saudita Instituição/País de afiliação: King Khalid University/SA

Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: LILACS Assunto principal: Quercetina / Resveratrol / Túbulos Renais / Acetaminofen Tipo de estudo: Estudo prognóstico Limite: Animais Idioma: Inglês Revista: Int. j. morphol Assunto da revista: Anatomia Ano de publicação: 2020 Tipo de documento: Artigo País de afiliação: Arábia Saudita Instituição/País de afiliação: King Khalid University/SA
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