孕前暴露于多环芳和学龄执行功能:来自联合队列研究的结果
Yu Ni1, Adam A Szpiro2, Christine T Loftus3
1Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, Seattle, WA, USA; Division of Epidemiology and Biostatistics, School of Public Health, College of Health and Human Services, San Diego State University, San Diego, CA, USA.
概括
对多环芳 (PAHs) 的产前暴露对儿童的执行功能没有显著影响. 需要进一步的研究来了解这些环境毒素的潜在微妙影响和相互作用.
科学领域:
- 环境健康 环境健康
- 发育神经科学的发展神经科学.
- 流行病学 流行病学
背景情况:
- 儿童执行功能对于认知发展至关重要,包括解决问题和注意力.
- 环境中有毒物质,如多环芳 (PAH),对对胎儿发育的潜在影响越来越令人担忧.
- 有限的流行病学证据表明,产前PAH暴露与儿童的执行功能之间存在关联.
研究的目的:
- 调查多环芳 (PAH) 的产前暴露与儿童执行功能之间的关联.
- 分析七种单氧化PAH代谢物对认知灵活性,工作记忆和抑制控制的单个和混合作用.
- 探索怀孕期间儿童性别和压力生活事件的潜在修改.
主要方法:
- 利用ECHO-PATHWAYS联盟的814名儿童的数据,分析怀孕中期尿液的PAH代谢物.
- 在8-9岁时评估执行功能,包括认知灵活性,工作记忆和抑制控制.
- 采用线性回归和贝叶斯核机器回归,调整相关共变量并检查相互作用效应.
主要成果:
- 主要分析显示,在产前PAH代谢物水平和执行功能领域之间通常没有关联.
- 没有观察到儿童性别或母亲压力对关联的显著改变.
- 混合物分析表明PAH代谢物之间对工作记忆的一些对对相互作用,但没有检测到一致的整体或个体效应.
结论:
- 这项研究为在一个大型的联合队列中产前PAH暴露和执行功能之间的关系提供了新的见解.
- 虽然主要是零发现,但该研究强调了环境暴露和神经发育的复杂性.
- 结果有助于了解健康和疾病的发育起源,为未来的研究方向提供信息.
相关概念视频
01:30Attention-Deficit/Hyperactivity Disorder
55
Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by persistent inattention, hyperactivity, and impulsivity. It affects approximately 5-8% of children globally, with around 60-70% of cases persisting into adulthood. ADHD has significant implications for educational attainment, social interactions, and occupational success.
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
55
01:30Information Processing Approach
33
The information-processing theory of cognitive development centers on fundamental mental processes, including attention, memory, and problem-solving skills. Researchers in this field examine how cognitive abilities, such as working memory, evolve and influence children's overall development. Studies indicate that children with stronger working memory tend to excel in reading comprehension, math, and problem-solving compared to peers with less efficient memory skills. Low working memory is...
33
01:29Environmental Influences on Intelligence
273
Despite the strong genetic influence on traits like intelligence, environmental factors significantly shape outcomes. For example, while over 90% of height variation is due to genetic differences, environmental factors such as nutrition also have a notable impact. Similarly, for intelligence, changes in a child's surroundings can significantly alter their IQ. Research shows that enriched environments boost children's academic success and help them develop key cognitive skills. Children...
273
01:36Types of Toxins
1.7K
Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
1.7K
01:30Biological Influences on Intelligence
88
Intelligence is often thought to be linked to brain size, but the relationship is more complex than that. While brain size does correlate modestly with some abilities, like verbal skills, the connection is weaker for others, such as spatial reasoning. Other factors, like brain structure, also play crucial roles. For instance, despite Einstein's smaller-than-average brain, his parietal cortex, which is involved in spatial reasoning, was 15% wider, suggesting that neural density might matter...
88