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Bone microstructure and metabolism changes under the combined intervention of ketogenic diet with intermittent fasting: an in vivo study of rats

Ketogenic diet (KD) has been used in epilepsy for decades, but previous studies found it may cause severe bone loss. Every-other-day ketogenic diet (EODKD), the combination of KD with intermittent fasting, showed better potential for seizure control recently, while its effects on bone remain unknown...

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Autores principales: Xu, Xiaolin, Ding, Jianyang, Wu, Xiuhua, Huang, Zucheng, Kong, Ganggang, Liu, Qi, Yang, Zhou, Huang, Zhiping, Zhu, Qingan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Japanese Association for Laboratory Animal Science 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6699973/
https://www.ncbi.nlm.nih.gov/pubmed/30944267
http://dx.doi.org/10.1538/expanim.18-0084
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author Xu, Xiaolin
Ding, Jianyang
Wu, Xiuhua
Huang, Zucheng
Kong, Ganggang
Liu, Qi
Yang, Zhou
Huang, Zhiping
Zhu, Qingan
author_facet Xu, Xiaolin
Ding, Jianyang
Wu, Xiuhua
Huang, Zucheng
Kong, Ganggang
Liu, Qi
Yang, Zhou
Huang, Zhiping
Zhu, Qingan
author_sort Xu, Xiaolin
collection PubMed
description Ketogenic diet (KD) has been used in epilepsy for decades, but previous studies found it may cause severe bone loss. Every-other-day ketogenic diet (EODKD), the combination of KD with intermittent fasting, showed better potential for seizure control recently, while its effects on bone remain unknown. This study aims to establish different ketogenic rat models and compare the influence of EODKD with KD on bone microstructure and metabolism. Thirty male Sprague-Dawley rats were divided into Control, KD and EODKD groups, fed with standard diet, continuous and intermittent ketogenic diet respectively. After 12 weeks, bone mineral density (BMD) and body fat percentage were obtained by dual energy X-ray absorptiometry. Micro-CT and three-point bending test were used to evaluate the bone microstructure and mechanical properties. Activities of serum alkaline phosphatase (ALP) and tartrate-resistant acid phosphatase (TRAP) were measured, together with the osteogenic capabilities of bone marrow stromal cells (BMSCs) tested by ALP activities and alizarin red stain in different osteogenic stage. Both EODKD and KD induced higher ketone and more fat percentage, but led to lower body weight compared with Control group. They both compromised bone mass and mechanical properties. Compared with KD, EODKD demonstrated higher ketone levels, but it also inhibited osteoclastic process as well as early osteogenic differentiation. In general, EODKD accelerated ketosis, but may not deteriorate bone microstructure and strength than KD.
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spelling pubmed-66999732019-09-16 Bone microstructure and metabolism changes under the combined intervention of ketogenic diet with intermittent fasting: an in vivo study of rats Xu, Xiaolin Ding, Jianyang Wu, Xiuhua Huang, Zucheng Kong, Ganggang Liu, Qi Yang, Zhou Huang, Zhiping Zhu, Qingan Exp Anim Original Ketogenic diet (KD) has been used in epilepsy for decades, but previous studies found it may cause severe bone loss. Every-other-day ketogenic diet (EODKD), the combination of KD with intermittent fasting, showed better potential for seizure control recently, while its effects on bone remain unknown. This study aims to establish different ketogenic rat models and compare the influence of EODKD with KD on bone microstructure and metabolism. Thirty male Sprague-Dawley rats were divided into Control, KD and EODKD groups, fed with standard diet, continuous and intermittent ketogenic diet respectively. After 12 weeks, bone mineral density (BMD) and body fat percentage were obtained by dual energy X-ray absorptiometry. Micro-CT and three-point bending test were used to evaluate the bone microstructure and mechanical properties. Activities of serum alkaline phosphatase (ALP) and tartrate-resistant acid phosphatase (TRAP) were measured, together with the osteogenic capabilities of bone marrow stromal cells (BMSCs) tested by ALP activities and alizarin red stain in different osteogenic stage. Both EODKD and KD induced higher ketone and more fat percentage, but led to lower body weight compared with Control group. They both compromised bone mass and mechanical properties. Compared with KD, EODKD demonstrated higher ketone levels, but it also inhibited osteoclastic process as well as early osteogenic differentiation. In general, EODKD accelerated ketosis, but may not deteriorate bone microstructure and strength than KD. Japanese Association for Laboratory Animal Science 2019-04-03 2019 /pmc/articles/PMC6699973/ /pubmed/30944267 http://dx.doi.org/10.1538/expanim.18-0084 Text en ©2019 Japanese Association for Laboratory Animal Science This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-nc-nd) License. (CC-BY-NC-ND 4.0: https://creativecommons.org/licenses/by-nc-nd/4.0/)
spellingShingle Original
Xu, Xiaolin
Ding, Jianyang
Wu, Xiuhua
Huang, Zucheng
Kong, Ganggang
Liu, Qi
Yang, Zhou
Huang, Zhiping
Zhu, Qingan
Bone microstructure and metabolism changes under the combined intervention of ketogenic diet with intermittent fasting: an in vivo study of rats
title Bone microstructure and metabolism changes under the combined intervention of ketogenic diet with intermittent fasting: an in vivo study of rats
title_full Bone microstructure and metabolism changes under the combined intervention of ketogenic diet with intermittent fasting: an in vivo study of rats
title_fullStr Bone microstructure and metabolism changes under the combined intervention of ketogenic diet with intermittent fasting: an in vivo study of rats
title_full_unstemmed Bone microstructure and metabolism changes under the combined intervention of ketogenic diet with intermittent fasting: an in vivo study of rats
title_short Bone microstructure and metabolism changes under the combined intervention of ketogenic diet with intermittent fasting: an in vivo study of rats
title_sort bone microstructure and metabolism changes under the combined intervention of ketogenic diet with intermittent fasting: an in vivo study of rats
topic Original
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6699973/
https://www.ncbi.nlm.nih.gov/pubmed/30944267
http://dx.doi.org/10.1538/expanim.18-0084
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