怀孕期间母亲的昼夜节律决定了后代的代谢可塑性
Na Yao1, Kenichiro Kinouchi1, Manami Katoh2
1Division of Endocrinology, Metabolism, and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan.
Cell metabolism
|January 15, 2025
概括
怀孕期间母亲的昼夜节律会影响后代.
科学领域:
- 时间生物学 时间生物学
- 发展生物学 发展生物学
- 代谢健康 代谢健康
背景情况:
- 组织振荡依赖于内在的时钟和外部信号.
- 母亲昼夜节律对胎儿发育和后代代谢健康的影响尚不清楚.
研究的目的:
- 调查怀孕期间母亲的昼夜干扰是否会影响胎儿发育和后代对饮食诱导的肥胖的易感性.
- 探索这些影响背后的机制,包括胎盘功能和后代的养行为.
主要方法:
- 孕期动物的孕产妇昼夜干扰模型.
- 对胎盘和新生儿发育的评估.
- 分析后代的养行为,下丘脑的瘦素耐药性和肝脏的昼夜基因表达.
- 对后代的不同饮食限制策略的评估.
主要成果:
- 怀孕期间的循环节障碍减少了胎盘和新生儿体重,但保持了成熟.
- 时间干扰母亲的后代表现出加剧的饮食诱导的肥胖症,节律失常的养,抗素,以及肝脏昼夜节律的改变.
- 在子宫中,昼夜失调影响了母胎相位关系和胎盘效率.
- 在后代中,循环节调整的热量限制在预防肥胖方面非常有效,与单独的时间限制不同.
结论:
- 怀孕期间母亲的昼夜节律对于在后代中建立适应性代谢功能至关重要.
- 扰乱母亲的昼夜节律可能导致长期的代谢失调,并增加后代的肥胖风险.
- 与昼夜循环相对应的热量摄入时间对于后代的代谢健康至关重要,突出了代谢疾病的发育起源.
相关概念视频
Circadian Rhythms and Gene Regulation
4.0K
The biological clock is involved in many aspects of regulating complex physiology in all animals. It was in 1935 when German zoologists, Hans Kalmus and Erwin Bünning, discovered the existence of circadian rhythm in Drosophila melanogaster. However, the internal molecular mechanisms behind the circadian clock remained a mystery until 1984, when Jeffrey C. Hall, Michael Rosbash, and Michael W. Young discovered the expression of the Per gene oscillating over a 24-hour cycle. In subsequent...
4.0K
Pathophysiology of Diabetes
859
Diabetes mellitus is a chronic metabolic disorder characterized by hyperglycemia. The four categories of diabetes are type 1 diabetes, type 2 diabetes, other specific types of diabetes, and gestational diabetes.
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
859
Genomic Imprinting and Inheritance
33.2K
Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
33.2K
What is Metabolism?
113.1K
Overview
113.1K


