Chronic vitamin D insufficiency impairs physical performance in C57BL/6J mice.

Chronic vitamin D insufficiency impairs physical performance in C57BL/6J mice.
复制标题

DOI:
10.18632/aging.101471
复制
发表时间:
2018-06-14
期刊:
Aging
影响因子:
--
通讯作者:
Troen BR
Troen BR
中科院分区:
其他
文献类型:
--
作者:
Seldeen KL;Pang M;Leiker MM;Bard JE;Rodríguez-Gonzalez M;Hernandez M;Sheridan Z;Nowak N;Troen BR

文献摘要

参考文献

相似文献

维生素D不足(血清25-OH维生素D < 30 ng/ml)影响70-80%的普通人群,但对身体机能和肌肉减少症进展的长期影响知之甚少。因此,我们对6个月大的雄性C57BL/6J小鼠(n=6)进行了为期12个月(相当于20-30年)的跟踪研究,这些小鼠摄入了足够的(STD, 1000 IU)或不足的(LOW, 125 IU)维生素D3/kg。补充LOW的小鼠在两周内血清25-OH维生素D水平迅速下降,此后所有时间点保持在11-15 ng/mL之间。12个月后,LOW小鼠表现出更差的握力耐力(34.6±14.1秒比147.5±50.6秒,p=0.001),上坡冲刺速度(16.0±1.0比21.8±2.4米/分钟,p=0.0007)和步幅(4.4±0.3比5.1±0.3,p=0.002)。LOW小鼠在8个月后也表现出更少的瘦体重(57.5%±5.1%对64.5%±4.0%,p=0.023),但在补充12个月后没有出现这种情况,并且萎缩途径基因atrogin‑1的蛋白表达增加。此外,microRNA测序显示mIR - 26a在LOW小鼠肌肉组织中的差异表达。这些数据表明,慢性维生素D不足可能是导致功能衰退和肌肉减少症的重要因素。
Vitamin D insufficiency (serum 25-OH vitamin D < 30 ng/ml) affects 70-80% of the general population, yet the long-term impacts on physical performance and the progression of sarcopenia are poorly understood. We therefore followed 6-month-old male C57BL/6J mice (n=6) consuming either sufficient (STD, 1000 IU) or insufficient (LOW, 125 IU) vitamin D3/kg chow for 12 months (equivalent to 20-30 human years). LOW supplemented mice exhibited a rapid decline of serum 25-OH vitamin D levels by two weeks that remained between 11-15 ng/mL for all time points thereafter. After 12 months LOW mice displayed worse grip endurance (34.6 ± 14.1 versus 147.5 ± 50.6 seconds, p=0.001), uphill sprint speed (16.0 ± 1.0 versus 21.8 ± 2.4 meters/min, p=0.0007), and stride length (4.4 ± 0.3 versus 5.1 ± 0.3, p=0.002). LOW mice also showed less lean body mass after 8 months (57.5% ± 5.1% versus 64.5% ± 4.0%, p=0.023), but not after 12 months of supplementation, as well as greater protein expression of atrophy pathway gene atrogin‑1. Additionally, microRNA sequencing revealed differential expression of mIR‑26a in muscle tissue of LOW mice. These data suggest chronic vitamin D insufficiency may be an important factor contributing to functional decline and sarcopenia.
DOI: 10.1210/en.2011-0159
发表时间: 2011-08-01
期刊: ENDOCRINOLOGY
影响因子: 4.8
作者:
Garcia, Leah A.;King, Keisha K.;Artaza, Jorge N.
通讯作者: Artaza, Jorge N.
DOI: 10.1002/jcsm.12030
发表时间: 2015-09-01
影响因子: 8.9
作者:
Gielen, Evelien;O'Neill, Terence W.;Verschueren, Sabine
通讯作者: Verschueren, Sabine
DOI: 10.1002/jcb.20639
发表时间: 2006-03-01
影响因子: 4
作者:
Buitrago, CG;Ronda, AC;Boland, R
通讯作者: Boland, R
DOI: 10.1007/s00223-015-0054-x
发表时间: 2015-12-01
影响因子: 4.2
作者:
Girgis, Christian M.;Cha, Kuan Minn;Gunton, Jenny E.
通讯作者: Gunton, Jenny E.
DOI: 10.1101/gad.198085.112
发表时间: 2012-10-01
影响因子: 10.5
作者:
Dey, Bijan K.;Gagan, Jeffrey;Dutta, Anindya
通讯作者: Dutta, Anindya