Metabolic and behavioural phenotyping system

代谢和行为表型系统

• 批准号: BB/V019198/1
• 负责人: David Bechtold
• 金额: $ 43.24万
• 依托单位: University of Manchester
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=BB%2FV019198%2F1
• 关键词: Metabolic; behavioural; phenotyping; system

The prevalence of obesity and metabolic disease in UK society and the clear impact of modern life and diet on our health and wellbeing, has driven increased interest and research into energy metabolism and feeding behaviour. There is also an increasing recognition that nutrition, energy supply and metabolism play an essential role in diverse aspects of our biology, including how we age, functioning of our immune system, and response to injury and disease. Despite this increased focus and recent advances, there remain fundamental gaps in understanding about how energy metabolism is regulated across the cells and tissue of the body, how internal systems such as the body clock orchestrate metabolic responses to deal with recurrent cycling between fasted and fed states, and how regulatory processes in the brain and body adapt to changes in environment, age, infection and disease. Our research strives to address these questions.Underpinning this work is the ability to study and characterise fundamental aspects of animal behaviour and physiology. In this proposal we are requesting funds for the purchase of a state-of-the-art platform to study mice and other small laboratory animals at a level not previously possible. This system allows fully automated and perfectly synchronized assessment of numerous important parameters with high precision in a home-cage environment (thus greatly reducing stress to the animals). The ability to collect all of these measures simultaneously, from individual animals will allow us to understand the interaction of different behaviours, diet manipulations and metabolic processes. The system also provides very tight control over external conditions such as light, temperature, and food availability, which will allow us to conduct studies in a range of environmental settings (including mimicking more natural conditions).This system will provide significant advance to a wide range of ongoing research programmes. These include understanding i) how the brain dictates what, when, and how much we eat; ii) how the body clock organises hugely diverse processes across our body, and how it being undermined by our 24hr modern society; iii) how fine genetic processes operating in the cells of our body can drive huge shifts in metabolism and body composition, iv) how are metabolic state has such a major influence on how well our immune system works during disease or infection, and v) how bacteria in our gut (the microbiome) can have a major influence on both metabolism and the immune system.

英国社会肥胖和代谢疾病的流行以及现代生活和饮食对我们健康和福祉的明显影响，推动了对能量代谢和喂养行为的兴趣和研究。人们也越来越认识到，营养、能量供应和新陈代谢在我们生物学的各个方面都起着至关重要的作用，包括我们如何衰老、免疫系统的功能以及对损伤和疾病的反应。尽管这种关注和最新进展增加，但在理解能量代谢如何在身体的细胞和组织中调节，内部系统（如生物钟）如何协调代谢反应以处理禁食和进食状态之间的循环，以及大脑和身体的调节过程如何适应环境，年龄，感染和疾病的变化方面仍然存在根本性的差距。我们的研究致力于解决这些问题。这项工作的基础是研究和理解动物行为和生理学的基本方面的能力。在这份提案中，我们要求资金购买一个最先进的平台，以研究小鼠和其他小型实验室动物，这在以前是不可能的。该系统允许在饲养笼环境中以高精度对许多重要参数进行全自动和完美同步的评估（从而大大减少了动物的压力）。同时从个体动物中收集所有这些测量结果的能力将使我们能够了解不同行为，饮食操作和代谢过程的相互作用。该系统还能对外界条件如光照、温度和食物供应等进行严格控制，使我们能够在一系列环境设置（包括模拟更多的自然条件）下进行研究。该系统将为广泛的正在进行的研究计划提供重大进展。这些包括理解i）大脑如何决定我们吃什么，什么时候吃，吃多少; ii）生物钟如何在我们的身体中组织各种各样的过程，以及它如何被我们24小时的现代社会所破坏; iii）在我们身体细胞中运作的精细遗传过程如何推动新陈代谢和身体组成的巨大变化，iv）代谢状态如何对我们的免疫系统在疾病或感染期间的工作情况产生如此重大的影响，以及v）我们肠道中的细菌（微生物组）如何对代谢和免疫系统产生重大影响。