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Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase01:11

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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...
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Acetylation, a phase II biotransformation reaction, introduces an acetyl group to drugs or their metabolites. Acetyltransferase enzymes facilitate this reaction, which resembles α-amino acid conjugation due to the addition of a functional group to the drug molecule.
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Hypertension III: Clinical Manifestations and Diagnostic Studies

Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...
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Phase II biotransformation reactions are essential for detoxifying and eliminating xenobiotics, including many pharmaceutical compounds. These reactions typically involve conjugation, the covalent attachment of polar endogenous groups such as glucuronic acid, sulfate, methyl, or acetyl moieties to functional groups introduced during Phase I metabolism. The resulting conjugates are more water-soluble, enabling efficient renal or biliary excretion.The major classes of Phase II enzymes include...
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Related Experiment Video

Updated: Jul 18, 2026

A Method to Study the C924T Polymorphism of the Thromboxane A2 Receptor Gene
07:00

A Method to Study the C924T Polymorphism of the Thromboxane A2 Receptor Gene

Published on: April 1, 2019

ACE I/D polymorphism study in a Cuban hypertensive population.

Osmel Companioni Nápoles1, Miguel Sautié Castellanos, Lester Leal

  • 1Genomics Department, Center for Genetic Engineering and Biotechnology, Havana City, Cuba. osmel@cigb.edu.cu

Clinica Chimica Acta; International Journal of Clinical Chemistry
|January 2, 2007
PubMed
Summary

The angiotensin converting enzyme (ACE) insertion/deletion (I/D) polymorphism is not linked to hypertension in this multiethnic Cuban population. Genetic variations in ACE do not appear to be a significant risk factor for high blood pressure in this study group.

Related Experiment Videos

Last Updated: Jul 18, 2026

A Method to Study the C924T Polymorphism of the Thromboxane A2 Receptor Gene
07:00

A Method to Study the C924T Polymorphism of the Thromboxane A2 Receptor Gene

Published on: April 1, 2019

Area of Science:

  • Genetics and Genomics
  • Cardiovascular Disease Research
  • Human Physiology

Background:

  • The angiotensin converting enzyme (ACE) plays a crucial role in blood pressure regulation via the renin-angiotensin system.
  • ACE is a candidate gene for essential hypertension, a common human condition.
  • The insertion/deletion (I/D) polymorphism of the ACE gene is frequently studied for its potential association with hypertension.

Purpose of the Study:

  • To investigate the association between the ACE I/D polymorphism and hypertension in a multiethnic population in Havana.
  • To determine if ACE gene variations contribute to the risk of developing essential hypertension.

Main Methods:

  • A case-control study involving 243 hypertensive and 407 normotensive individuals matched for age, sex, and ethnicity.
  • Genotyping of the ACE I/D polymorphism using the polymerase chain reaction (PCR) technique.
  • Statistical analysis including Hardy-Weinberg equilibrium, chi-squared, and odds ratio tests to assess genotype-phenotype associations.

Main Results:

  • Genotype frequencies were in Hardy-Weinberg equilibrium for most subgroups.
  • A statistically significant difference in ACE genotype distribution was observed in black women (p=0.04) under an additive model.
  • However, adjusted odds ratios did not reveal a significant association between the ACE I/D polymorphism and hypertension in any subgroup, including black women (OR 1.14).

Conclusions:

  • The ACE I/D polymorphism is not significantly associated with hypertension in this multiethnic Cuban sample.
  • Despite a marginal statistical finding in black women, the overall evidence does not support ACE I/D as a hypertension risk factor in this population.
  • Further research may be needed to explore other genetic or environmental factors influencing hypertension.