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Genomics02:02

Genomics

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Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
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Overview
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The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
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Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
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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.
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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.
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在儿科中将基因组学纳入主流

Danielle Bogue1, Charlotte Douglas2, Edward Miller3

  • 1National Genomics Education Programme, NHS England, Birmingham, UK danielle.bogue@nhs.net.

Archives of disease in childhood. Education and practice edition
|April 28, 2025
PubMed
概括
此摘要是机器生成的。

基因组测试为儿童罕见遗传疾病的诊断和治疗提供了巨大的潜力. 将这些先进的基因组技术集成到儿科护理中需要解决劳动力培训和基础设施挑战,以改善儿童健康结果.

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儿童健康 儿童健康遗传学 遗传学 是一个儿科 儿科 儿科技术 技术 技术 技术 技术

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科学领域:

  • 遗传学和基因组学 遗传学和基因组学
  • 儿科医学 儿科医学
  • 罕见疾病 罕见疾病

背景情况:

  • 大约80%的罕见疾病是遗传的,其中75%影响儿童.
  • 包括全基因组测序在内的基因组技术对于诊断和治疗罕见儿科疾病至关重要.
  • 早期基因组查可以实现及时干预,防止儿童的健康恶化.

研究的目的:

  • 探索将基因组测试整合到儿科护理中.
  • 确定在国家卫生服务 (NHS) 中将基因组技术纳入主流的挑战和复杂性.
  • 提出支持儿科工作人员采用基因组学的策略.

主要方法:

  • 审查目前的基因组测试在儿科的框架.
  • 对基因组知识的教育和培训资源的分析.
  • 开发未来的临床整合战略.

主要成果:

  • 基因组测试在诊断和治疗罕见儿科疾病方面具有巨大的潜力.
  • 将基因组学纳入临床实践存在重大挑战,包括劳动力适应和基础设施导航.
  • 该研究概述了将基因组学纳入儿科护理的框架,培训和策略.

结论:

  • 基因组技术在儿科护理中的应用对于改善罕见疾病的结果至关重要.
  • 克服实施挑战是实现基因组学在儿童健康方面的全部好处的关键.
  • 通过教育和资源支持儿科工作人员对于成功的基因组整合至关重要.