实验生物学可以为我们对粮食不安全的理解提供信息
Linda Wilbrecht1,2, Wan Chen Lin2, Kathryn Callahan3
1Department of Psychology, University of California, Berkeley, Berkeley, CA 94720-1650, USA.
The Journal of experimental biology
|March 7, 2024
概括
粮食不安全是一个公共卫生问题,影响健康和行为. 动物研究表明,不可预测的食物获取可以改变新陈代谢,体重,动机和认知,这表明适应稀缺的适应反应.
科学领域:
- 公共卫生 公共卫生
- 神经科学是一个神经科学.
- 代谢科学 代谢科学
背景情况:
- 粮食不安全影响全球数以百万计的人,造成严重的健康风险.
- 古代生物程序可能会在发育过程中提高对粮食不安全感的敏感性.
- 了解这些计划可以阐明粮食不安全对健康的影响.
研究的目的:
- 探索粮食不安全的生物和行为影响.
- 研究如何在发育阶段接触到粮食不安全影响健康结果.
- 检查动物模型,了解人类的粮食不安全.
主要方法:
- 使用动物模型通过操纵食物获取可预测性来模拟粮食不安全.
- 在不同物种中采用不同的实验范式.
- 分析体重,新陈代谢,动机和认知的变化.
主要成果:
- 不安全的食物获取导致动物模型的体重,新陈代谢和动机发生变化.
- 观察到认知功能和食行为的变化.
- 有证据表明,它会影响代谢效率,生殖能力和多巴胺神经元功能.
结论:
- 粮食不安全可以触发适应性生物反应,例如体重增加作为"保险"来防止未来的稀缺.
- 行为和认知变化可能代表对不确定的环境的战略调整.
- 需要进一步的研究,以了解粮食不安全对整个生命周期和各种生理系统的影响的全部范围.
相关概念视频
01:59Plant Breeding and Biotechnology
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
02:55The Evidence for Evolution
Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
01:40Overview of Metabolism
Living cells constantly carry out various chemical reactions which are necessary for their proper functioning. These reactions are interlinked to one another via multiple pathways. The collection of these chemical reactions is known as metabolism.
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...