将肥胖与白质微观结构联系起来,凸显了脑干通道和性别差异的重要性
Tiril P Gurholt1, Dani Beck2,3,4, Irene Voldsbekk1,2,3
1Section for Precision Psychiatry, Division of Mental Health and Addiction, Oslo University Hospital, 0450 Oslo, Norway.
Brain communications
|February 20, 2026
概括
肥胖和体型测量会影响大脑白质,而性别比年龄更能影响这些影响. 这些发现突出了与个性化健康策略相关的身体-大脑联系.
科学领域:
- 神经成像是一种神经成像.
- 公共卫生 公共卫生
- 人体生理学 人体生理学
背景情况:
- 肥胖与通过扩散MRI检测到的白质变化有关.
- 肥胖现象型及其与年龄和性别的相互作用对大脑扩散指标的具体影响需要进一步研究.
- 了解身体与大脑之间的联系对于解决肥胖并发症至关重要.
研究的目的:
- 澄清肥胖和人体人体测量如何影响白质扩散指标.
- 研究性别和年龄在这些身体-大脑关系中的调节作用.
- 增强对身体健康 (肥胖) 与大脑健康之间的联系的理解.
主要方法:
- 对来自4040名参与者 (44-83岁,52.2%为女性) 的英国生物库横截面数据的分析.
- 利用多重线性回归来评估肥胖/人类计量和白质扩散张力成像 (DTI) 度量 (FA,AD,RD,MD) 之间的关联.
- 在DTI指标上检查了与年龄和性别的相互作用效应.
主要成果:
- 在肥胖表型和白质DTI指标之间发现了显著的,小效果大小的关联 (RRRR 0.02-0.20),特别是在脑干区域.
- 性别-肥胖现象型相互作用比年龄-肥胖现象型相互作用更为普遍.
- 结果表明,与身体脂肪相关的途径影响身体和大脑健康,因性别和年龄而异.
结论:
- 肥胖和人体人体测量与白质微观结构差异有关.
- 性别在肥胖表型与大脑扩散指标之间的关系中,比年龄更重要的调节作用.
- 这些发现支持针对肥胖相关的大脑疾病开发有针对性的干预措施,强调需要进行纵向研究.
更多相关视频
04:46Differentiation and Imaging of Brown Adipocytes from the Stromal Vascular Fraction of Interscapular Adipose Tissue from Newborn Mice
Published on: February 3, 2023
10:53Analysis of the Mitochondrial Density and Longitudinal Distribution in Rat Live-Skeletal Muscle Fibers by Confocal Microscopy
Published on: December 1, 2023
相关概念视频
Sex-linked Disorders
Like autosomes, sex chromosomes contain a variety of genes necessary for normal body function. When a mutation in one of these genes results in biological deficits, the disorder is considered sex-linked.
The Y Chromosome Determines Maleness
The Y chromosome is a sex chromosome found in several vertebrates and mammals, including humans. In addition to 22 pairs of autosomes, the human males have one X chromosome and one Y chromosome. In these organisms, the presence or absence of the Y chromosome determines the development of male traits.
Evolution
Around 300 million years ago, the two sex chromosomes diverged from two identical autosomal chromosomes. Over time, the Y chromosome has lost most of its genes, shrinking in size. Today,...
Evolution
Around 300 million years ago, the two sex chromosomes diverged from two identical autosomal chromosomes. Over time, the Y chromosome has lost most of its genes, shrinking in size. Today,...
Cerebrum: Anatomical Overview II
Each cerebral hemisphere can be divided into three main regions. The outermost region, the cerebral cortex, is a thin layer (2 to 4 millimeters thick) made up of gray matter, consisting of neuron cell bodies, dendrites, glial cells, and blood vessels. The middle region, or white matter, is primarily composed of myelinated nerve fibers organized into three types of large tracts: association fibers, commissures, and projection fibers. Association fibers connect different areas within the same...
Obesity
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 adipocytes...
Organization of the Brain
The brain is an integral component of the nervous system and serves as the center for processing sensory inputs, making decisions, and directing bodily actions. This complex organ is organized into three primary sections: the hindbrain, midbrain, and forebrain, each responsible for a range of vital functions.
Hindbrain
The hindbrain, located at the base of the brain, plays a vital role in regulating automatic processes that sustain life. It includes the medulla oblongata, which is essential for...
Hindbrain
The hindbrain, located at the base of the brain, plays a vital role in regulating automatic processes that sustain life. It includes the medulla oblongata, which is essential for...
Anorexia Nervosa
Anorexia nervosa is a complex and severe eating disorder characterized by an intense fear of weight gain, an unrelenting pursuit of thinness, and a distorted body image. It often leads to dangerously low body weight relative to an individual's age and height. This disorder is marked by significant physical and psychological consequences, making it one of the most life-threatening psychiatric illnesses.
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
