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The Impact of Sex and 25(OH)D Deficiency on Metabolic Function in Mice

Both dietary fat and vitamin D deficiency have been linked with increased incidence of non-alcoholic fatty liver disease and insulin resistance. While sex differences in disease prevalence and severity are well known, the impact on disease pathogenesis remains unclear. To further explore the effect...

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Autores principales: Giblin, Ryan J., Bennett, Ellen J., Zosky, Graeme R., Dwyer, Renée M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5622745/
https://www.ncbi.nlm.nih.gov/pubmed/28880231
http://dx.doi.org/10.3390/nu9090985
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author Giblin, Ryan J.
Bennett, Ellen J.
Zosky, Graeme R.
Dwyer, Renée M.
author_facet Giblin, Ryan J.
Bennett, Ellen J.
Zosky, Graeme R.
Dwyer, Renée M.
author_sort Giblin, Ryan J.
collection PubMed
description Both dietary fat and vitamin D deficiency have been linked with increased incidence of non-alcoholic fatty liver disease and insulin resistance. While sex differences in disease prevalence and severity are well known, the impact on disease pathogenesis remains unclear. To further explore the effect of these exposures on metabolic function, C57BL/6 male and female mice were weaned onto one of four diets; low fat vitamin D replete, low fat vitamin D deficient, or two high fat diets, one vitamin D replete and one deficient. Visceral fat, hepatic adiposity, and insulin resistance were measured after five and a half weeks. Vitamin D deficiency, independent of dietary fat, increased hepatic fat accumulation in both sexes (p = 0.003), although did not increase hepatic expression of interleukin-6 (p = 0.92) or tumor necrosis factor-α (p = 0.78). Males were observed to have greater insulin resistance (glucose area under the curve: p < 0.001, homeostatic model assessment for insulin resistance: p = 0.046), and have greater visceral adiposity (p < 0.001), while female mice had greater hepatic fat accumulation (p < 0.001). This study is the first to demonstrate vitamin D deficiency alone can cause hepatic accumulation while also being the first to observe higher liver fat percentages in female mice.
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spelling pubmed-56227452017-10-05 The Impact of Sex and 25(OH)D Deficiency on Metabolic Function in Mice Giblin, Ryan J. Bennett, Ellen J. Zosky, Graeme R. Dwyer, Renée M. Nutrients Article Both dietary fat and vitamin D deficiency have been linked with increased incidence of non-alcoholic fatty liver disease and insulin resistance. While sex differences in disease prevalence and severity are well known, the impact on disease pathogenesis remains unclear. To further explore the effect of these exposures on metabolic function, C57BL/6 male and female mice were weaned onto one of four diets; low fat vitamin D replete, low fat vitamin D deficient, or two high fat diets, one vitamin D replete and one deficient. Visceral fat, hepatic adiposity, and insulin resistance were measured after five and a half weeks. Vitamin D deficiency, independent of dietary fat, increased hepatic fat accumulation in both sexes (p = 0.003), although did not increase hepatic expression of interleukin-6 (p = 0.92) or tumor necrosis factor-α (p = 0.78). Males were observed to have greater insulin resistance (glucose area under the curve: p < 0.001, homeostatic model assessment for insulin resistance: p = 0.046), and have greater visceral adiposity (p < 0.001), while female mice had greater hepatic fat accumulation (p < 0.001). This study is the first to demonstrate vitamin D deficiency alone can cause hepatic accumulation while also being the first to observe higher liver fat percentages in female mice. MDPI 2017-09-07 /pmc/articles/PMC5622745/ /pubmed/28880231 http://dx.doi.org/10.3390/nu9090985 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Giblin, Ryan J.
Bennett, Ellen J.
Zosky, Graeme R.
Dwyer, Renée M.
The Impact of Sex and 25(OH)D Deficiency on Metabolic Function in Mice
title The Impact of Sex and 25(OH)D Deficiency on Metabolic Function in Mice
title_full The Impact of Sex and 25(OH)D Deficiency on Metabolic Function in Mice
title_fullStr The Impact of Sex and 25(OH)D Deficiency on Metabolic Function in Mice
title_full_unstemmed The Impact of Sex and 25(OH)D Deficiency on Metabolic Function in Mice
title_short The Impact of Sex and 25(OH)D Deficiency on Metabolic Function in Mice
title_sort impact of sex and 25(oh)d deficiency on metabolic function in mice
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5622745/
https://www.ncbi.nlm.nih.gov/pubmed/28880231
http://dx.doi.org/10.3390/nu9090985
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