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Differential therapeutic effects of Crataegus aronia and simvastatin on the hepatocyte ultrastructure in hepatic steatosis / Efectos terapéuticos diferenciales de Crataegus aronia y simvastatina sobre la estructura del hepatocito en la esteatosis hepática
Al Humayed, Suliman; Eid, Refaat A; Shatoor, Abdullah S; Haidara, Mohamed A; Zaki, Mohamed Samir A; Al-Ani, Bahjat.
  • Al Humayed, Suliman; King Khalid University. College of Medicine. Departments of Medicine. Abha. SA
  • Eid, Refaat A; King Khalid University. College of Medicine. Pathology and Anatomy. Abha. SA
  • Shatoor, Abdullah S; King Khalid University. College of Medicine. Departments of Medicine. Abha. SA
  • Haidara, Mohamed A; King Khalid University. College of Medicine. Physiology. Abha. SA
  • Zaki, Mohamed Samir A; King Khalid University. College of Medicine. Pathology and Anatomy. Abha. SA
  • Al-Ani, Bahjat; King Khalid University. College of Medicine. Physiology. Abha. SA
Int. j. morphol ; 35(2): 578-583, June 2017. ilus
Article in English | LILACS | ID: biblio-893024
ABSTRACT
Complications of fat accumulation in liver, hepatic steatosis such as liver cirrhosis and liver failure are among the common public health problems. We sought to investigate the damage to the hepatocyte ultrastructure induced by high fat diets (HFD) and compared the therapeutic effects at the cellular level of two antioxidant and lipid lowering agents; Crataegus aronia extracts and simvastatin on hepatic steatosis. Rats were either fed with HFD (model group) or low fat diets (LFD) (control group) for 15 weeks before being sacrificed and therapeutic groups started the treatment with these agents after week 11 until the sacrifice day. Harvested liver tissues were examined using transmission electron microscopy (TEM) and liver homogenates were assayed for markers of anti-oxidative stress that are known to be modulated in liver injury. TEM examinations of the model group showed a profound damage to the hepatocytes compared to the control group as demonstrated by steatosis, damaged mitochondria and vaculated cytoplasm, disrupted rough and smooth endoplasmic reticulum and nuclear membrane, dilated intercellular space between hepatocytes, and alterations in lysosomes. In addition, HFD ameliorated the anti-oxidant glutathione (GSH) and augmented the oxidative stress TBARS biomarkers. Both Crataegus aronia and simvastatin significantly reduced lipids and TBARS, and treated damage to hepatic cells, but hepatocyte structures were differentially responded to these agents. However, only Crataegus aronia induced GSH (p=0.001). We conclude that HFD-induced hepatic steatosis caused a substantial damage to the hepatocyte's ultrastructures, and Crataegus aronia and simvastatin treatments differentially reversed hepatic injuries.
RESUMEN
Las complicaciones de la acumulación de grasa en el hígado, la esteatosis hepática como la cirrosis hepática y la insuficiencia hepática se encuentran entre los problemas comunes de salud pública. Se intentó investigar el daño a la ultraestructura de los hepatocitos inducido por la dieta alta en grasas (DAG) y se compararon los efectos terapéuticos a nivel celular de dos antioxidantes y agentes hipolipemiantes; Extracto de Crataegus aronia y simvastatina sobre esteatosis hepática. Las ratas fueron alimentadas con DAG (grupo modelo) o dieta baja en grasa (DBG) (grupo control) durante 15 semanas antes de sacrificarse y los grupos terapéuticos comenzaron el tratamiento con estos agentes después de la semana 11 hasta el día del sacrificio. Se examinaron los tejidos hepáticos usando microscopía electrónica de transmisión (MET) y se analizaron homogeneizados de hígado para marcadores de estrés anti-oxidativo, que se sabe están modulados en la lesión hepática. Los exámenes MET del grupo DAG mostraron un grave daño de los hepatocitos en comparación con el grupo control, demostrado por esteatosis, daño mitocondrial y citoplasma vacío, retículo endoplásmico rugoso y liso y membrana nuclear, el espacio intercelular dilatado entre hepatocitos y alteraciones en los lisosomas. Además, DAG mejoró el anti-oxidante glutatión (GSH) y aumentó el estrés oxidativo TBARS biomarcadores. Tanto Crataegus aronia como simvastatina redujeron significativamente los lípidos y TBARS, trataron el daño a las células hepáticas, pero las estructuras de hepatocitos respondieron diferencialmente a estos agentes. Sin embargo, sólo Crataegus aronia indujo GSH (p = 0,001). Concluimos que la esteatosis hepática inducida por HFD causó un daño sustancial a la ultraestructura del hepatocito y los tratamientos de Crataegus aronia y simvastatina diferenciaron las lesiones hepáticas.
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Full text: Available Index: LILACS (Americas) Main subject: Plant Extracts / Simvastatin / Crataegus / Fatty Liver Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2017 Type: Article Affiliation country: Saudi Arabia Institution/Affiliation country: King Khalid University/SA

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Full text: Available Index: LILACS (Americas) Main subject: Plant Extracts / Simvastatin / Crataegus / Fatty Liver Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2017 Type: Article Affiliation country: Saudi Arabia Institution/Affiliation country: King Khalid University/SA