Related Experiment Videos
[Multivariate analysis on the relationship between polymorphisms on chromosome 17 and essential hypertension]
Ling-Yu Fu1, Yan-Yan Zhao, Jing-Pu Shi
1Department of Clinical Epidemiology, First Affiliated Hospital, Chinese Medical University, Shenyang 110001, China.
Zhonghua Liu Xing Bing Xue Za Zhi = Zhonghua Liuxingbingxue Zazhi
|December 2, 2008
Summary
Genetic variations at D17S1878 and D17S932 sites were investigated for their association with essential hypertension. The study found no significant link between these polymorphisms and the development of hypertension.
Area of Science:
- Genetics
- Cardiovascular Disease Research
- Molecular Biology
Context:
- Essential hypertension is a complex cardiovascular disease with multifactorial origins.
- Genetic factors are known to contribute to hypertension susceptibility.
- Understanding specific genetic markers is crucial for risk assessment and personalized medicine.
Purpose:
- To investigate the potential association between polymorphisms at the D17S1878 and D17S932 genetic loci and the prevalence of essential hypertension.
- To identify genetic markers that may influence hypertension development within a high-prevalence population.
Summary:
- A case-control study analyzed 67 pedigrees from a high-hypertension prevalence region.
- Polymorphisms at D17S1878 and D17S932 were genotyped; D17S1878 showed a significant difference between hypertensive and normotensive sibs, but D17S932 did not.
- Multivariate logistic analysis indicated that neither D17S1878 nor D17S932 polymorphisms were significant predictors of essential hypertension, unlike age, drinking habits, rash characteristics, triglyceride, and LDL-C levels.
Impact:
- The findings suggest that D17S1878 and D17S932 polymorphisms are unlikely to be major contributors to essential hypertension in this population.
- This research contributes to the understanding of genetic underpinnings of hypertension, highlighting other significant risk factors.
- Further genetic association studies with larger cohorts and diverse populations are warranted to fully elucidate the genetic architecture of essential hypertension.
Related Concept Videos
01:29Pharmacogenetic 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...
01:28Human 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...
The complex relationship between genetics and psychology is observable through common biological components such...
01:27Principles 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...
01:11Genome-wide Association Studies-GWAS
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...
01:11Pharmacogenetics 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...
01:05Single 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,...