Effects of High-fat Diets on Biochemical Profiles and Morpho- Quantitative Characteristics of C57BL/6 Mice Adrenal Glands

SUMMARY: According to the information provided by the World Health Organization (WHO), overweight and obesity are the fifth leading causes of death in the world. Due to the alarming increase of this disorder in recent years, studies have been carried out to evidence harmful effects on human or anima...

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Autores principales: Navarrete,Javiera, Vásquez,Bélgica, Vasconcellos,Adriana, del Sol,Mariano, Olave,Enrique, Sandoval,Cristian
Lenguaje:English
Publicado: Sociedad Chilena de Anatomía 2018
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022018000200722
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spelling oai:scielo:S0717-950220180002007222019-09-16Effects of High-fat Diets on Biochemical Profiles and Morpho- Quantitative Characteristics of C57BL/6 Mice Adrenal GlandsNavarrete,JavieraVásquez,BélgicaVasconcellos,Adrianadel Sol,MarianoOlave,EnriqueSandoval,Cristian Adrenal gland Morphometry Stereology High fat diet Corticosterone SUMMARY: According to the information provided by the World Health Organization (WHO), overweight and obesity are the fifth leading causes of death in the world. Due to the alarming increase of this disorder in recent years, studies have been carried out to evidence harmful effects on human or animal tissues. Our objective was to evaluate the morphological and physiological changes of C57BL/6 mice adrenal glands (AGs), associated with high fat diets (HFDs), we used 14 male mice, 5 months old, fed for 14 weeks according to two diets. The standard chow group (SC) was fed AIN-93M and the high fat group (HF) was fed AIN-93M-HF. At the end of the experiment, biometric analysis was performed and euthanasia was performed. Blood was then extracted for biochemical analysis and AGs were processed for mesoscopic, histological, morphometric and stereological studies. We used Student&#8217;s t-test (p<0.05) for statistical analysis. SC group showed a lower weight (29.67±1.28 g) with respect to the HF group (38.46±4.68 g, p=0.002). COL-T, HDL-C, TG and CORT analysis revealed differences between SC group and HF (p&#8804;0.001). Focally, in the fasciculate area, there was an increase in the core-cytoplasm ratio and a greater lipid vacuole presence and size. There was a significant reduction (p=0.001) in Vvfas=7.365±3.326 % of the HF group fasciculate area compared to SC group (Vvfas=9.619±4.548 %). Obesity induced by HF diets affects adrenal gland physiology and morphology of mice. Our results suggest that both the percentage of fat as well as the time of administration of the diet, produce a diurnal reduction of corticosterone, which could be due to an increase in the metabolic clearance of this hormone and not to the inhibition of the Hypothalamus-Pituitary-Adrenal (HPA) axis.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.36 n.2 20182018-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022018000200722en10.4067/S0717-95022018000200722
institution Scielo Chile
collection Scielo Chile
language English
topic Adrenal gland
Morphometry
Stereology
High fat diet
Corticosterone
spellingShingle Adrenal gland
Morphometry
Stereology
High fat diet
Corticosterone
Navarrete,Javiera
Vásquez,Bélgica
Vasconcellos,Adriana
del Sol,Mariano
Olave,Enrique
Sandoval,Cristian
Effects of High-fat Diets on Biochemical Profiles and Morpho- Quantitative Characteristics of C57BL/6 Mice Adrenal Glands
description SUMMARY: According to the information provided by the World Health Organization (WHO), overweight and obesity are the fifth leading causes of death in the world. Due to the alarming increase of this disorder in recent years, studies have been carried out to evidence harmful effects on human or animal tissues. Our objective was to evaluate the morphological and physiological changes of C57BL/6 mice adrenal glands (AGs), associated with high fat diets (HFDs), we used 14 male mice, 5 months old, fed for 14 weeks according to two diets. The standard chow group (SC) was fed AIN-93M and the high fat group (HF) was fed AIN-93M-HF. At the end of the experiment, biometric analysis was performed and euthanasia was performed. Blood was then extracted for biochemical analysis and AGs were processed for mesoscopic, histological, morphometric and stereological studies. We used Student&#8217;s t-test (p<0.05) for statistical analysis. SC group showed a lower weight (29.67±1.28 g) with respect to the HF group (38.46±4.68 g, p=0.002). COL-T, HDL-C, TG and CORT analysis revealed differences between SC group and HF (p&#8804;0.001). Focally, in the fasciculate area, there was an increase in the core-cytoplasm ratio and a greater lipid vacuole presence and size. There was a significant reduction (p=0.001) in Vvfas=7.365±3.326 % of the HF group fasciculate area compared to SC group (Vvfas=9.619±4.548 %). Obesity induced by HF diets affects adrenal gland physiology and morphology of mice. Our results suggest that both the percentage of fat as well as the time of administration of the diet, produce a diurnal reduction of corticosterone, which could be due to an increase in the metabolic clearance of this hormone and not to the inhibition of the Hypothalamus-Pituitary-Adrenal (HPA) axis.
author Navarrete,Javiera
Vásquez,Bélgica
Vasconcellos,Adriana
del Sol,Mariano
Olave,Enrique
Sandoval,Cristian
author_facet Navarrete,Javiera
Vásquez,Bélgica
Vasconcellos,Adriana
del Sol,Mariano
Olave,Enrique
Sandoval,Cristian
author_sort Navarrete,Javiera
title Effects of High-fat Diets on Biochemical Profiles and Morpho- Quantitative Characteristics of C57BL/6 Mice Adrenal Glands
title_short Effects of High-fat Diets on Biochemical Profiles and Morpho- Quantitative Characteristics of C57BL/6 Mice Adrenal Glands
title_full Effects of High-fat Diets on Biochemical Profiles and Morpho- Quantitative Characteristics of C57BL/6 Mice Adrenal Glands
title_fullStr Effects of High-fat Diets on Biochemical Profiles and Morpho- Quantitative Characteristics of C57BL/6 Mice Adrenal Glands
title_full_unstemmed Effects of High-fat Diets on Biochemical Profiles and Morpho- Quantitative Characteristics of C57BL/6 Mice Adrenal Glands
title_sort effects of high-fat diets on biochemical profiles and morpho- quantitative characteristics of c57bl/6 mice adrenal glands
publisher Sociedad Chilena de Anatomía
publishDate 2018
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022018000200722
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