相关实验视频
Updated: Jun 29, 2025

10:42
Oral Biofilm Sampling for Microbiome Analysis in Healthy Children
Published on: December 31, 2017
17.1K
多个祖先的全基因组协会研究,对幼儿的研究
medRxiv : the preprint server for health sciences
|April 2, 2024
概括
早期儿童 (ECC) 是一种常见的儿童疾病,已经确定了21个新的遗传风险位点. 这项全基因组研究揭示了对ECC的遗传影响,强调了性别和环境因素对口腔健康的重要性.
科学领域:
- 遗传学 是一个遗传学.
- 口腔健康 口腔健康
- 儿科健康 儿科健康
背景情况:
- 幼儿 (ECC) 是儿童中普遍存在的一种非传染性疾病.
- 已知的环境和行为因素会影响ECC,但特定的遗传风险位置尚未得到充分探索.
- 了解遗传贡献对于全面的ECC预防和管理至关重要.
研究的目的:
- 进行全基因组关联研究 (GWAS),以确定学龄前儿童中ECC的遗传风险位置.
- 为了估计ECC的遗传性和一致率.
- 为了研究基因与环境的相互作用,考虑性别,水化物和食糖.
主要方法:
- 在6103名美国学龄前儿童身上进行了一项全基因组关联研究.
- 使用ICDAS标准和dmfs指数来测量ECC.
- 分析了遗传性,一致性和全基因组显著位置,包括2度自由度 (2df) 联合测试基因环境影响.
主要成果:
- 常见的遗传变异解释了ECC表型变异 (遗传性) 的24%.
- 确定了21个新的ECC全基因组显著基因位点.
- 两个位点 (rs74606067和rs71327750) 在外部成人和儿科队列中显示复制;TAAR6被确定为一个重要的基因.
结论:
- 这项研究确定了与幼儿牙相关的新型遗传位置,扩大了基因组知识库.
- 遗传因素在ECC发育中发挥着重要作用,导致了相当大的遗传性.
- 未来的研究应该将性和环境暴露纳入口腔健康的遗传研究中.
相关概念视频
Genome-wide Association Studies-GWAS
13.4K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
13.4K
Teeth
406
The formation of teeth, also known as odontogenesis, is a complex process that begins in utero, around the sixth week of embryonic development. There are three stages to this process: the bud stage, the cap stage, and the bell stage.
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
406
Behavioral Genetics and Its Designs
363
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...
363
Genomic Imprinting and Inheritance
34.4K
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...
34.4K

