相关实验视频
Updated: Jun 22, 2025

04:48
Control of Eating Behavior Using a Novel Feedback System
Published on: May 8, 2018
11.0K
在青少年双胞胎中,失去控制的饮食和体重指数之间的共同遗传影响
Camden E Matherne1, Baiyu Qi1, Soo Hyun Rhee2,3
1Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
The International journal of eating disorders
|June 28, 2024
概括
青少年失去控制 (LOC) 的饮食在两性中都显示出中度的遗传性. 遗传因素影响LOC饮食和BMI,特别是在男孩中,这表明这些疾病的遗传风险是共同的.
科学领域:
- 行为遗传学 行为遗传学
- 儿童肥胖症 儿童肥胖症
- 饮食障碍 饮食障碍 饮食障碍 饮食障碍
背景情况:
- 儿童和青少年失去控制 (LOC) 的饮食与更高的BMI有关,并预测未来的肥胖和过度饮食障碍.
- 儿科LOC饮食的遗传和环境基础及其与身体质量指数 (BMI) 的关系仍未得到充分研究.
研究的目的:
- 调查青少年对LOC饮食的遗传和环境影响.
- 在青少年双胞胎样本中检查LOC饮食和BMI之间的共同遗传影响.
主要方法:
- 利用来自科罗拉多州反社会药物依赖研究中心的897名青少年双胞胎 (499名单胞胎,398名双胞胎) 的数据.
- 评估了LOC二分法,并将自我报告的身高和体重转换为BMI z-scores (BMIz).
- 采用单变体和双变体双胞胎建模来估计LOC饮食和BMIz.的遗传和环境贡献.
主要成果:
- 青少年女孩 (21%) 报告说,他们比男孩 (9%) 更频繁地食用LOC (9%).
- 遗传因素解释了女孩的LOC饮食51%和男孩的54%的差异.
- 在男孩的LOC饮食和BMIz之间发现了显著的遗传相关性 (0.45),表明了共同的遗传影响.
结论:
- 青春期的LOC饮食是适度遗传的,独特的环境因素也发挥着作用.
- 在青少年男孩中,共同的遗传因素有助于LOC饮食和BMI.
- 这些发现强调了在理解和解决儿科LOC饮食和肥胖症时考虑遗传倾向的重要性.
相关概念视频
Anorexia Nervosa
58
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...
58
Binge Eating Disorders
61
Binge eating disorder is a significant mental health condition characterized by recurrent episodes of excessive food consumption within a short period, accompanied by a perceived loss of control over eating behavior. Unlike occasional overeating, binge eating disorder is marked by distressing emotions such as guilt, shame, and anxiety following binge episodes. The disorder affects individuals across different ages and backgrounds, with profound implications for physical and psychological...
61
Obesity
447
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...
447
Bulimia Nervosa
63
Bulimia nervosa is a complex and severe eating disorder characterized by a cyclical pattern of binge-and-purge eating pattern. It generally involves an episode of binge eating, followed by compensatory behaviors such as vomiting, excessive exercise, laxative use, or fasting, to prevent weight gain. Despite often maintaining a normal weight, individuals with bulimia are intensely preoccupied with their body image and harbor an overwhelming fear of gaining weight. This can contribute to the...
63
Behavioral Genetics and Its Designs
352
Behavior genetics explores how genetic inheritance influences human behavior. It focuses on how genes, passed from parents to offspring, contribute to the development of behavioral traits and tendencies. This branch of genetics seeks to understand the complex interplay between inherited genetic factors and environmental influences in shaping our behaviors.
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
352
Human Genetics
556
Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
The complex relationship between genetics and psychology is observable through common biological components such...
556

