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Pharmacogenetics and Pharmacogenomics: Overview01:29

Pharmacogenetics and Pharmacogenomics: Overview

Pharmacogenetics and pharmacogenomics examine how genetic factors influence an individual's response to drugs. While pharmacogenetics focuses on the impact of specific genetic variants on drug effects, pharmacogenomics takes a broader approach, studying how genetic variation across populations contributes to differences in drug responses. These fields aim to explain why individuals may experience varying levels of efficacy or adverse reactions to the same medication.Variability in drug...
Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu01:29

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...
Pharmacogenetics of Drug Metabolism: Overview01:27

Pharmacogenetics of Drug Metabolism: Overview

Genetic polymorphism in drug metabolism is crucial to the inter-individual variability observed in drug responses. Drug metabolism primarily involves the chemical modification of drugs and other xenobiotics to enhance their elimination by increasing their polarity. Two main classes of enzymes mediate this biotransformation process: Phase I enzymes, primarily cytochrome P450s, catalyze oxidation and reduction reactions, while other enzymes, such as esterases, mediate hydrolysis, and Phase II...
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase01:11

Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase

Genetic polymorphisms in drug targets have emerged as critical determinants of interindividual variability in drug response and toxicity. Pharmacogenomic investigations increasingly focus on identifying these variations to personalize and optimize therapeutic interventions. A drug target may be a receptor, enzyme, or signaling protein involved in pharmacologic responses or disease-related pathways. While early pharmacogenetic studies focused primarily on drug metabolism, current research...
Pharmacogenomics: Identification of New Drug Targets01:29

Pharmacogenomics: Identification of New Drug Targets

Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...
Human Genetics01:28

Human Genetics

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...

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Updated: Jun 8, 2026

Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease
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Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease

Published on: April 4, 2018

Maria Niarchou1, Ellen L Tsai1,2, Mariela V Jennings3

  • 1Department of Medicine, Division of Genetic Medicine, Vanderbilt University, Nashville, Tennessee, USA.

Addiction biology
|January 19, 2026
PubMed
概括
此摘要是机器生成的。

了解阿片类药物使用障碍 (OUD) 的遗传基础至关重要. 这项研究发现,使用一般电子健康记录控制,而不是阿片类药物暴露控制,是对OUD的遗传研究的切实替代方案.

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Combining Laser Capture Microdissection and Microfluidic qPCR to Analyze Transcriptional Profiles of Single Cells: A Systems Biology Approach to Opioid Dependence

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科学领域:

  • 遗传学 是一个遗传学.
  • 药理学 药理学是指药理学的学科.
  • 公共卫生 公共卫生

背景情况:

  • 对阿片类药物使用障碍 (OUD) 的全基因组关联研究 (GWAS) 受到小样本大小和不适当的对照组的限制.
  • 在OUD遗传研究中,阿片类药物暴露史对于对照选择至关重要.
  • 电子健康记录 (EHR) 为大规模遗传研究提供了宝贵的资源,当与基因组数据相联系时.

研究的目的:

  • 在OUD的遗传研究中,评估使用一般 (未选) 与阿片类药物暴露对照者的影响.
  • 使用EHR数据,比较OUD病例和不同对照组之间的表型和遗传结果.
  • 确定在OUD遗传研究中使用一般控制的可行性.

主要方法:

  • 进行了全现象关联研究 (PheWAS),以比较OUD病例和通用与暴露对照之间的并发病概况.
  • 进行了全基因组关联研究 (GWAS),将OUD病例与通用和暴露的对照组进行比较.
  • 评估了遗传性,OPRM1变异关联,遗传相关性和表型错误分类.

主要成果:

  • PheWAS显示了对照组之间的OUD相关并发症协会重叠,使用通用对照组的结果更明显.
  • 遗传结果,包括遗传性和OPRM1变异关联,在通用和暴露的对照组中一致.
  • 使用仿制控制的GWAS与较大的独立OUD GWAS相比,表型错误分类没有显著的影响.

结论:

  • 从EHR数据进行一般控制是OUD遗传研究的实用和有效替代方案.
  • 这种方法优化了控制定义,提高了对OUD进行大规模遗传研究的可行性.
  • 这些发现支持使用易于获得的EHR数据来进一步了解OUD的遗传基础.