相关实验视频
Updated: Jun 15, 2025
08:53
Localization, Identification, and Excision of Murine Adipose Depots
Published on: December 4, 2014
41.0K
脂肪体的发育在狩猎采集者中是一致的,与西方的参考不同
Joseph V Hackman1, Benjamin C Campbell2, Barry Hewlett3
1Department of Anthropology, University of Utah , Salt Lake City, UT, USA.
Proceedings. Biological sciences
|August 27, 2024
概括
狩猎采集者的孩子比参考种群更瘦,比参考种群晚积累脂肪. 这项研究揭示了贪食儿童中脂肪和生长的独特发育模式,突出了人类发育的可塑性.
科学领域:
- 人类进化生物学 人类进化生物学
- 发育儿科 发育儿科
- 营养人类学 营养人类学
背景情况:
- 人类被描述为异常肥胖的灵长类动物,但关于狩猎采集群体脂肪模式的经验数据仍然很少.
- 了解不同人群的脂肪发育对于全面了解人类进化和生理学至关重要.
研究的目的:
- 调查当代狩猎采集儿童和青少年肥胖的发育模式.
- 为了建立一个基线的脂肪发育在食者群体,并与参考数据进行比较.
主要方法:
- 利用多层次的通用添加混合建模来分析三肌皮的生长在阿卡,萨凡纳普梅,Ju'/Hoansi和阿塔塔儿童.
- 从幼儿时期到青春期,在各种环境中检查了从幼儿到青春期的模式.
主要成果:
- 狩猎采集者儿童在幼儿时期表现出瘦弱,脂肪积累延迟,并且在5岁时没有脂肪反弹.
- 青春期的女孩在峰值脂肪速度达到初潮,而骨生长和脂肪积累之间的代谢权衡在发育过程中发生了变化.
- 各种不同的狩猎采集群体之间一致的模式表明了一般的采集者发展轨迹.
结论:
- 与参考种群相比,狩猎采集者的发育模式为脂肪发育提供了独特的基线.
- 研究结果强调了人类生长和发展的可塑性,受环境和生活方式因素的影响.
相关概念视频
01:02Hypodermis
4.2K
The hypodermis (the subcutaneous layer or superficial fascia) is present directly below the dermis. It connects the skin to the underlying fascia (fibrous tissue) of the bones and muscles. It is not strictly a part of the skin, although the border between the hypodermis and dermis can be difficult to distinguish. The hypodermis consists of well-vascularized, loose, areolar connective tissue and adipose tissue, which functions as a mode of fat storage and provides insulation and cushioning for...
4.2K
01:24Obesity
416
The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in...
416