神経精神疾患に関連したコピー数の変動
Edwin H Cook1, Stephen W Scherer
1Institute for Juvenile Research, Department of Psychiatry, University of Illinois, 1747 West Roosevelt Road, Chicago, Illinois 60608, USA.
Nature
|October 17, 2008
まとめ
コピー数変異 (CNVs) のような遺伝的変異は,神経精神疾患に関連しています. 疾患の感受性と複雑性におけるそれらの役割を理解するために,さらなる研究が必要である.
科学分野:
- 遺伝学 遺伝学とは
- 神経科学は神経科学である.
- バイオインフォマティクス
背景:
- 自閉症や統合失調症を含む神経精神疾患は,複雑な遺伝疾患である.
- これらの状態に寄与する特定の遺伝子を特定することは,大きな課題でした.
- 最近の進歩は,病気の感受性における遺伝的変異の役割を強調しています.
研究 の 目的:
- 神経精神疾患におけるコピー数変化 (CNV) の役割を調査する.
- 疾患感受性の潜在的な候補として,CNVsによって影響を受ける遺伝子を調査する.
- CNVsの生物医学的な関連性を評価する際の統合的アプローチの必要性を強調する.
主な方法:
- マイクロアレイ実験を活用して,ヒト集団におけるコピー数変動を検出した.
- DNAの複製,削除,再編成を分析した.
- 特定されたコピー数変異によって影響を受けた遺伝子に焦点を当てた.
主要な成果:
- マイクロアレイの実験により,ヒトゲノムのコピー数に多大な違いが明らかになった.
- 複製数変異によって影響を受ける遺伝子は,神経精神疾患の研究の有力候補として浮上した.
- この研究は,一般集団におけるコピー数変動の流行を強調している.
結論:
- コピーの数の変動は,神経精神疾患に関連する遺伝的多様性の重要な源である.
- CNVによって影響を受ける遺伝子は,疾患の病原性におけるその役割に関するさらなる調査を正当化します.
- 神経精神病学的遺伝学におけるCNVの生物医学的な重要性を理解するために,包括的で統合された評価が不可欠です.
関連する概念動画
Comparing Copy Number Variations and SNPs
Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
Principles of Pharmacogenetics: Types of Genetic Variants
The human genome is over 99.9% identical between individuals, yet genetic differences exist at millions of bases. The human genome contains approximately 3 million variant positions per individual, many of which are heterozygous, contributing to genetic diversity and individual traits. Genetic variations include single-nucleotide polymorphisms (SNPs), insertions, deletions, and copy number variations (CNVs).SNPs, the most common variation, involve single-base changes in DNA. These can be...
Diagnostic and Statistical Manual of Mental Disorders (DSM)
The Diagnostic and Statistical Manual of Mental Disorders (DSM) serves as the primary classification system for mental health disorders, providing standardized diagnostic criteria for clinicians and researchers. First published by the American Psychiatric Association (APA) in 1952, the DSM has undergone several revisions to reflect evolving psychiatric understanding. The fifth edition, DSM-5, released in 2013, introduced key updates that expanded diagnostic categories and modified diagnostic...
Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu
Genetic variations significantly influence drug response through pharmacokinetics, receptor interactions, and biologic milieu modifications. Pharmacokinetic alterations impact drug metabolism and clearance, affecting efficacy and toxicity. Variants in drug-metabolizing enzymes, such as CYP2C9 and CYP2C19, alter drug activation and elimination. For example, CYP2C9 loss-of-function variants require lower warfarin doses to prevent excessive bleeding, while CYP2C19 variants reduce clopidogrel...
Single Nucleotide Polymorphisms-SNPs
A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
Disorders of the Nervous Tissue
Nervous tissue is a vital component of the human body's communication system, enabling us to perceive and respond to stimuli. However, like all other tissues, it is vulnerable to disorders and diseases that can significantly impact our neurological functioning.
Homeostatic Imbalances:
Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
Parkinson's disease arises from the...
Homeostatic Imbalances:
Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
Parkinson's disease arises from the...

