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Printable Handouts
Navigable Slide Index
- Introduction
- Overview
- Hypertension
- Causes of hypertension
- Blood pressure
- Genes with major effects?
- Monogenic forms of hypertension
- Linkage studies and hypertension
- Conclusions from linkage studies
- Genes with smaller effects?
- Genome-wide association study (GWAS)
- BP gene discovery
- WTCCC and hypertension
- Early GWAS studies
- Meta-analysis of GWAS
- GBPG and CHARGE results
- Genetic variance and blood pressure
- GBPG – Chromosome 1p36
- Candidate genes at 1p36
- Further BP gene discovery
- ICBP-GWAS (1)
- ICBP-GWAS Manhattan Plots
- Twenty-nine SNPs for SBP and DBP at 28 loci
- ICBP-GWAS (2)
- Gene-centric arrays
- Summary of BP associations
- Candidate genes (eg. ICBP-GWAS)
- Genetic Risk Score (GRS)
- GRS BP phenotypes
- GRS and cardiovascular outcomes
- Conclusions
- Missing heritability
- On-going and future work
- Acknowledgements
Topics Covered
- Hypertension: cause of 4.5% of global disease burden
- Causes of hypertension
- Complex trait: multiple risk factors
- Strategies for finding genes
- Candidate gene analysis
- Genome-wide scans
- Blood pressure traits
- Genes with major effects?
- Linkage analyses
- Monogenic forms of hypertension linkage results
- Human chromosomes showing regions of linkage with hypertension
- Interpretation
- Little consistency between studies
- Other methodological approaches are required
Links
Series:
Categories:
Therapeutic Areas:
Talk Citation
Munroe, P. (2014, February 4). Genome scans for hypertension [Video file]. In The Biomedical & Life Sciences Collection, Henry Stewart Talks. Retrieved December 30, 2024, from https://doi.org/10.69645/MYKM6712.Export Citation (RIS)
Publication History
Financial Disclosures
- Prof. Patricia Munroe has not informed HSTalks of any commercial/financial relationship that it is appropriate to disclose.
A selection of talks on Clinical Practice
Transcript
Please wait while the transcript is being prepared...
0:00
Hello.
My name is Patricia Munroe, and I'm
the Professor of Molecular Medicine
at Barts and The London School
of Medicine and Dentistry
at Queen Mary University of
London in the United Kingdom.
My research interest is finding
the genes for hypertension,
subsequently determining
the function of these genes,
and then exploring their potential
as new therapeutic targets
for cardiovascular disease.
0:26
In this lecture, I'm going to
describe what hypertension is
and why it's important
for us to study,
then leading onto the strategies
for finding genes for hypertension.
And these are primarily focused
on using linkage analysis
and genome-wide association studies.
I will then describe some
of the primary results
from the genome scans, leading
to short descriptions of some
of the new candidate
genes and pathways,
and then finishing with an overview
of ongoing work in the area.
0:55
So the World Health Organization
and International Societies
define hypertension or high blood
pressure as a blood pressure
recording of greater than
or equal to 140 over 90
millimeters of mercury.
So measure analysis of
over a million individuals
from prospective studies have
indicated that increasing levels
of blood pressure lead
to increases in the risk
of cardiovascular disease, for
example, the rate of heart attack,
stroke, and renal disease.
And hypertension is common.
It affects over a
billion people worldwide.
And a couple of years ago,
the World Health Organization
showed that hypertension
causes 4 and 1/2%
of the global disease burden.
Gene discovery is seen
as an important root
for finding out about
blood pressure mechanisms.
And also, it has the
potential for identifying
new therapeutic targets.