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Intermittent breaking of isolation may ameliorate decrease in physical activity caused by isolation

delete2024-11-27
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OA
AI
A
Aritoshi Uchida
K
Kazuharu Nakagawa
K
Kanako Yoshimi
Y
Yuki Nagasawa *
K
Kohei Yamaguchi
U
Uesaka, Naofumi
H
Haruka Tohara
DOI:10.1371/journal.pone.0314262delete
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摘要

摘要

En 中文
社会隔离因心理应激影响身体功能。我们构建了大鼠模型以阐明社会隔离尚未明确的影响,并确定作为干预措施的环境改变能否减轻社会隔离对生理因素的应激诱导效应。8周龄雄性大鼠被分为三组:群居组、隔离组和干预组。群居组大鼠每笼饲养2只,隔离组每笼饲养1只,干预组在隔离和群居条件下交替饲养。所有大鼠在21天后被安乐死,采集其血浆、颞肌和下肢肌肉。测量体重、摄食量、活动量、肌肉重量以及血浆皮质酮、生长激素释放肽和肌肉抑制素水平。结果显示,群居组与干预组在各指标上均无显著差异。然而,隔离组的体重增长、摄食量及血浆皮质酮水平高于群居组。血浆肌肉抑制素水平在隔离组高于干预组。血浆生长激素释放肽浓度在隔离组低于群居组或干预组。隔离组的活动量较干预组降低,下肢肌肉重量占比也低于群居组和干预组。总之,隔离降低了身体活动,并影响体重、摄食量和肌肉重量;这些变化与作为应激标志物的皮质酮、与食欲相关的生长激素释放肽以及骨骼肌生长抑制因子肌肉抑制素相关。此外,当干预组减少隔离时间时,这些变化被抑制。本研究表明,间歇性打破隔离可能减轻隔离的生理效应。
Keyword:
PLASMA GHRELIN LEVELS
SOCIAL-ISOLATION
ACYLATED PEPTIDE
RISK-FACTORS
LONELINESS
DENSITY
GLUCOSE
HEALTH
RATS
MICE

期刊

PLoS One 封面图
PLoS One
IF:
2.6
论文数:
2.6W
被引数:
82.2W

机构

I
Inst Sci Tokyo
学者数:
856
论文数: 381
被引数: 294
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