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Vitamin D deficiency down-regulates Notch pathway contributing to skeletal muscle atrophy in old wistar rats
BACKGROUND: The diminished ability of aged muscle to self-repair is a factor behind sarcopenia and contributes to muscle atrophy. Muscle repair depends on satellite cells whose pool size is diminished with aging. A reduction in Notch pathway activity may explain the age-related decrease in satellite...
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Published in: | Nutrition & metabolism 2014-09, Vol.11 (1), p.47-47, Article 47 |
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creator | Domingues-Faria, Carla Chanet, Audrey Salles, Jérôme Berry, Alexandre Giraudet, Christophe Patrac, Véronique Denis, Philippe Bouton, Katia Goncalves-Mendes, Nicolas Vasson, Marie-Paule Boirie, Yves Walrand, Stéphane |
description | BACKGROUND: The diminished ability of aged muscle to self-repair is a factor behind sarcopenia and contributes to muscle atrophy. Muscle repair depends on satellite cells whose pool size is diminished with aging. A reduction in Notch pathway activity may explain the age-related decrease in satellite cell proliferation, as this pathway has been implicated in satellite cell self-renewal. Skeletal muscle is a target of vitamin D which modulates muscle cell proliferation and differentiation in vitro and stimulates muscle regeneration in vivo. Vitamin D status is positively correlated to muscle strength/function, and elderly populations develop a vitamin D deficiency. The aim of this study was to evaluate how vitamin D deficiency induces skeletal muscle atrophy in old rats through a reduction in Notch pathway activity and proliferation potential in muscle. METHODS: 15-month-old male rats were vitamin D-depleted or not (control) for 9 months (n = 10 per group). Rats were 24-month-old at the end of the experiment. Gene and/or protein expression of markers of proliferation, or modulating proliferation, and of Notch signalling pathway were studied in the tibialis anterior muscle by qPCR and western blot. An unpaired student’s t-test was performed to test the effect of the experimental conditions. RESULTS: Vitamin D depletion led to a drop in concentrations of plasma 25-hydroxyvitamin D in depleted rats compared to controls (-74%, p |
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Muscle repair depends on satellite cells whose pool size is diminished with aging. A reduction in Notch pathway activity may explain the age-related decrease in satellite cell proliferation, as this pathway has been implicated in satellite cell self-renewal. Skeletal muscle is a target of vitamin D which modulates muscle cell proliferation and differentiation in vitro and stimulates muscle regeneration in vivo. Vitamin D status is positively correlated to muscle strength/function, and elderly populations develop a vitamin D deficiency. The aim of this study was to evaluate how vitamin D deficiency induces skeletal muscle atrophy in old rats through a reduction in Notch pathway activity and proliferation potential in muscle. METHODS: 15-month-old male rats were vitamin D-depleted or not (control) for 9 months (n = 10 per group). Rats were 24-month-old at the end of the experiment. Gene and/or protein expression of markers of proliferation, or modulating proliferation, and of Notch signalling pathway were studied in the tibialis anterior muscle by qPCR and western blot. An unpaired student’s t-test was performed to test the effect of the experimental conditions. RESULTS: Vitamin D depletion led to a drop in concentrations of plasma 25-hydroxyvitamin D in depleted rats compared to controls (-74%, p < 0.01). Tibialis anterior weight was decreased in D-depleted rats (-25%, p < 0.05). The D-depleted group showed -39%, -31% drops in expression of two markers known to modulate proliferation (Bmp4, Fgf-2 mRNA levels) and -56% drop in one marker of cell proliferation (PCNA protein expression) compared to controls (p < 0.05). Notch pathway activity was blunted in tibialis anterior of D-depleted rats compared to controls, seen as a down-regulation of cleaved Notch (-53%, p < 0.05) and its target Hes1 (-35%, p < 0.05). CONCLUSIONS: A 9-month vitamin D depletion induced vitamin D deficiency in old rats. Vitamin D depletion induces skeletal muscle atrophy in old rats through a reduction in Notch pathway activity and proliferation potential. Vitamin D deficiency could aggravate the age-related decrease in muscle regeneration capacity.</description><identifier>ISSN: 1743-7075</identifier><identifier>EISSN: 1743-7075</identifier><identifier>DOI: 10.1186/1743-7075-11-47</identifier><identifier>PMID: 25317198</identifier><language>eng</language><publisher>England: Springer-Verlag</publisher><subject>Age ; Aging ; Analysis ; Cell cycle ; Cell growth ; cell proliferation ; correlation ; elderly ; Food and Nutrition ; Gene expression ; genes ; Health aspects ; Hypotheses ; Life Sciences ; messenger RNA ; muscle strength ; muscles ; Musculoskeletal system ; Nutrition ; Older people ; proliferating cell nuclear antigen ; protein synthesis ; Proteins ; quantitative polymerase chain reaction ; rats ; Rodents ; sarcopenia ; skeletal muscle ; Studies ; t-test ; Transcription factors ; Vitamin D ; Vitamin D deficiency ; Vitamin deficiency ; vitamin status ; Western blotting</subject><ispartof>Nutrition & metabolism, 2014-09, Vol.11 (1), p.47-47, Article 47</ispartof><rights>COPYRIGHT 2014 BioMed Central Ltd.</rights><rights>2014 Domingues-Faria et al.; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><rights>Domingues-Faria et al.; licensee BioMed Central Ltd. 2014</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-b639t-3af557a09728799f9e51829442fe7f9c46e578482d2567d23346074101e802f73</citedby><cites>FETCH-LOGICAL-b639t-3af557a09728799f9e51829442fe7f9c46e578482d2567d23346074101e802f73</cites><orcidid>0000-0002-1787-5802 ; 0000-0003-0693-9433 ; 0000-0002-3999-1599 ; 0000-0002-4349-3664</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4195890/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/1610393131?pq-origsite=primo$$EHTML$$P50$$Gproquest$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,885,25753,27924,27925,37012,37013,44590,53791,53793</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/25317198$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.science/hal-01223538$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Domingues-Faria, Carla</creatorcontrib><creatorcontrib>Chanet, Audrey</creatorcontrib><creatorcontrib>Salles, Jérôme</creatorcontrib><creatorcontrib>Berry, Alexandre</creatorcontrib><creatorcontrib>Giraudet, Christophe</creatorcontrib><creatorcontrib>Patrac, Véronique</creatorcontrib><creatorcontrib>Denis, Philippe</creatorcontrib><creatorcontrib>Bouton, Katia</creatorcontrib><creatorcontrib>Goncalves-Mendes, Nicolas</creatorcontrib><creatorcontrib>Vasson, Marie-Paule</creatorcontrib><creatorcontrib>Boirie, Yves</creatorcontrib><creatorcontrib>Walrand, Stéphane</creatorcontrib><title>Vitamin D deficiency down-regulates Notch pathway contributing to skeletal muscle atrophy in old wistar rats</title><title>Nutrition & metabolism</title><addtitle>Nutr Metab (Lond)</addtitle><description>BACKGROUND: The diminished ability of aged muscle to self-repair is a factor behind sarcopenia and contributes to muscle atrophy. Muscle repair depends on satellite cells whose pool size is diminished with aging. A reduction in Notch pathway activity may explain the age-related decrease in satellite cell proliferation, as this pathway has been implicated in satellite cell self-renewal. Skeletal muscle is a target of vitamin D which modulates muscle cell proliferation and differentiation in vitro and stimulates muscle regeneration in vivo. Vitamin D status is positively correlated to muscle strength/function, and elderly populations develop a vitamin D deficiency. The aim of this study was to evaluate how vitamin D deficiency induces skeletal muscle atrophy in old rats through a reduction in Notch pathway activity and proliferation potential in muscle. METHODS: 15-month-old male rats were vitamin D-depleted or not (control) for 9 months (n = 10 per group). Rats were 24-month-old at the end of the experiment. Gene and/or protein expression of markers of proliferation, or modulating proliferation, and of Notch signalling pathway were studied in the tibialis anterior muscle by qPCR and western blot. An unpaired student’s t-test was performed to test the effect of the experimental conditions. RESULTS: Vitamin D depletion led to a drop in concentrations of plasma 25-hydroxyvitamin D in depleted rats compared to controls (-74%, p < 0.01). Tibialis anterior weight was decreased in D-depleted rats (-25%, p < 0.05). The D-depleted group showed -39%, -31% drops in expression of two markers known to modulate proliferation (Bmp4, Fgf-2 mRNA levels) and -56% drop in one marker of cell proliferation (PCNA protein expression) compared to controls (p < 0.05). Notch pathway activity was blunted in tibialis anterior of D-depleted rats compared to controls, seen as a down-regulation of cleaved Notch (-53%, p < 0.05) and its target Hes1 (-35%, p < 0.05). CONCLUSIONS: A 9-month vitamin D depletion induced vitamin D deficiency in old rats. Vitamin D depletion induces skeletal muscle atrophy in old rats through a reduction in Notch pathway activity and proliferation potential. Vitamin D deficiency could aggravate the age-related decrease in muscle regeneration capacity.</description><subject>Age</subject><subject>Aging</subject><subject>Analysis</subject><subject>Cell cycle</subject><subject>Cell growth</subject><subject>cell proliferation</subject><subject>correlation</subject><subject>elderly</subject><subject>Food and Nutrition</subject><subject>Gene expression</subject><subject>genes</subject><subject>Health aspects</subject><subject>Hypotheses</subject><subject>Life Sciences</subject><subject>messenger RNA</subject><subject>muscle strength</subject><subject>muscles</subject><subject>Musculoskeletal system</subject><subject>Nutrition</subject><subject>Older people</subject><subject>proliferating cell nuclear antigen</subject><subject>protein synthesis</subject><subject>Proteins</subject><subject>quantitative polymerase chain reaction</subject><subject>rats</subject><subject>Rodents</subject><subject>sarcopenia</subject><subject>skeletal muscle</subject><subject>Studies</subject><subject>t-test</subject><subject>Transcription factors</subject><subject>Vitamin D</subject><subject>Vitamin D deficiency</subject><subject>Vitamin deficiency</subject><subject>vitamin status</subject><subject>Western 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D deficiency down-regulates Notch pathway contributing to skeletal muscle atrophy in old wistar rats</title><author>Domingues-Faria, Carla ; Chanet, Audrey ; Salles, Jérôme ; Berry, Alexandre ; Giraudet, Christophe ; Patrac, Véronique ; Denis, Philippe ; Bouton, Katia ; Goncalves-Mendes, Nicolas ; Vasson, Marie-Paule ; Boirie, Yves ; Walrand, Stéphane</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-b639t-3af557a09728799f9e51829442fe7f9c46e578482d2567d23346074101e802f73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Age</topic><topic>Aging</topic><topic>Analysis</topic><topic>Cell cycle</topic><topic>Cell growth</topic><topic>cell proliferation</topic><topic>correlation</topic><topic>elderly</topic><topic>Food and Nutrition</topic><topic>Gene expression</topic><topic>genes</topic><topic>Health aspects</topic><topic>Hypotheses</topic><topic>Life Sciences</topic><topic>messenger RNA</topic><topic>muscle strength</topic><topic>muscles</topic><topic>Musculoskeletal system</topic><topic>Nutrition</topic><topic>Older people</topic><topic>proliferating cell nuclear antigen</topic><topic>protein synthesis</topic><topic>Proteins</topic><topic>quantitative polymerase chain reaction</topic><topic>rats</topic><topic>Rodents</topic><topic>sarcopenia</topic><topic>skeletal muscle</topic><topic>Studies</topic><topic>t-test</topic><topic>Transcription factors</topic><topic>Vitamin D</topic><topic>Vitamin D deficiency</topic><topic>Vitamin deficiency</topic><topic>vitamin status</topic><topic>Western blotting</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Domingues-Faria, Carla</creatorcontrib><creatorcontrib>Chanet, Audrey</creatorcontrib><creatorcontrib>Salles, Jérôme</creatorcontrib><creatorcontrib>Berry, Alexandre</creatorcontrib><creatorcontrib>Giraudet, 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Alexandre</au><au>Giraudet, Christophe</au><au>Patrac, Véronique</au><au>Denis, Philippe</au><au>Bouton, Katia</au><au>Goncalves-Mendes, Nicolas</au><au>Vasson, Marie-Paule</au><au>Boirie, Yves</au><au>Walrand, Stéphane</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Vitamin D deficiency down-regulates Notch pathway contributing to skeletal muscle atrophy in old wistar rats</atitle><jtitle>Nutrition & metabolism</jtitle><addtitle>Nutr Metab (Lond)</addtitle><date>2014-09-30</date><risdate>2014</risdate><volume>11</volume><issue>1</issue><spage>47</spage><epage>47</epage><pages>47-47</pages><artnum>47</artnum><issn>1743-7075</issn><eissn>1743-7075</eissn><abstract>BACKGROUND: The diminished ability of aged muscle to self-repair is a factor behind sarcopenia and contributes to muscle atrophy. Muscle repair depends on satellite cells whose pool size is diminished with aging. A reduction in Notch pathway activity may explain the age-related decrease in satellite cell proliferation, as this pathway has been implicated in satellite cell self-renewal. Skeletal muscle is a target of vitamin D which modulates muscle cell proliferation and differentiation in vitro and stimulates muscle regeneration in vivo. Vitamin D status is positively correlated to muscle strength/function, and elderly populations develop a vitamin D deficiency. The aim of this study was to evaluate how vitamin D deficiency induces skeletal muscle atrophy in old rats through a reduction in Notch pathway activity and proliferation potential in muscle. METHODS: 15-month-old male rats were vitamin D-depleted or not (control) for 9 months (n = 10 per group). Rats were 24-month-old at the end of the experiment. Gene and/or protein expression of markers of proliferation, or modulating proliferation, and of Notch signalling pathway were studied in the tibialis anterior muscle by qPCR and western blot. An unpaired student’s t-test was performed to test the effect of the experimental conditions. RESULTS: Vitamin D depletion led to a drop in concentrations of plasma 25-hydroxyvitamin D in depleted rats compared to controls (-74%, p < 0.01). Tibialis anterior weight was decreased in D-depleted rats (-25%, p < 0.05). The D-depleted group showed -39%, -31% drops in expression of two markers known to modulate proliferation (Bmp4, Fgf-2 mRNA levels) and -56% drop in one marker of cell proliferation (PCNA protein expression) compared to controls (p < 0.05). Notch pathway activity was blunted in tibialis anterior of D-depleted rats compared to controls, seen as a down-regulation of cleaved Notch (-53%, p < 0.05) and its target Hes1 (-35%, p < 0.05). CONCLUSIONS: A 9-month vitamin D depletion induced vitamin D deficiency in old rats. Vitamin D depletion induces skeletal muscle atrophy in old rats through a reduction in Notch pathway activity and proliferation potential. Vitamin D deficiency could aggravate the age-related decrease in muscle regeneration capacity.</abstract><cop>England</cop><pub>Springer-Verlag</pub><pmid>25317198</pmid><doi>10.1186/1743-7075-11-47</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0002-1787-5802</orcidid><orcidid>https://orcid.org/0000-0003-0693-9433</orcidid><orcidid>https://orcid.org/0000-0002-3999-1599</orcidid><orcidid>https://orcid.org/0000-0002-4349-3664</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | Age Aging Analysis Cell cycle Cell growth cell proliferation correlation elderly Food and Nutrition Gene expression genes Health aspects Hypotheses Life Sciences messenger RNA muscle strength muscles Musculoskeletal system Nutrition Older people proliferating cell nuclear antigen protein synthesis Proteins quantitative polymerase chain reaction rats Rodents sarcopenia skeletal muscle Studies t-test Transcription factors Vitamin D Vitamin D deficiency Vitamin deficiency vitamin status Western blotting |
title | Vitamin D deficiency down-regulates Notch pathway contributing to skeletal muscle atrophy in old wistar rats |
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