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Related Concept Videos

Blood Studies for Cardiovascular System I: Cardiac Biomarkers01:20

Blood Studies for Cardiovascular System I: Cardiac Biomarkers

749
Cardiac biomarkers are enzymes, proteins, and hormones released into the blood when cardiac cells are injured. They are powerful tools for triaging.
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
749
Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers01:19

Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers

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Cardiac biomarkers are critical in diagnosing, prognosing, and managing cardiovascular diseases. Routine measurement of specific biomarkers such as B-type natriuretic peptide (BNP), C-reactive protein (CRP), and homocysteine (Hcy) is common practice in clinical settings to evaluate heart function and predict cardiovascular events.
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
516

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Related Experiment Video

Updated: Jan 7, 2026

Dried Blood Spot Collection of Health Biomarkers to Maximize Participation in Population Studies
07:20

Dried Blood Spot Collection of Health Biomarkers to Maximize Participation in Population Studies

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Biomarkers.

Yoontae Kim1, Lindsay A Farrer2, Kun Ho Lee3,4,5,6

  • 1BK21 FOUR, Department of Integrative Biological Sciences, Chosun University, Gwangju, Jeon-La, Korea, Republic of (South).

Alzheimer'S & Dementia : the Journal of the Alzheimer'S Association
|December 26, 2025
PubMed
Summary
This summary is machine-generated.

This study identified 43 genetic loci linked to brain atrophy in Korean individuals, offering new insights into neurodegenerative disease mechanisms and potential therapeutic targets. These findings advance our understanding of genetic influences on brain structure.

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Area of Science:

  • Neuroscience
  • Genetics
  • Medical Imaging

Background:

  • Brain atrophy is a key indicator of neurological disorders and cognitive decline.
  • Magnetic Resonance Imaging (MRI) advances brain structure analysis.
  • Genetic variations, especially rare ones, influence brain atrophy but are understudied in diverse populations.

Purpose of the Study:

  • To investigate genetic factors associated with brain atrophy using imaging genetics.
  • To identify genetic variants linked to structural brain changes in a Korean cohort.
  • To deepen understanding of neurodegenerative disease mechanisms.

Main Methods:

  • Cross-sectional and longitudinal imaging genetics analysis of 9,841 MRIs from 5,870 Korean subjects.
  • Whole-genome sequencing and imputed microarray data from the Gwangju Alzheimer's & Related Dementia (GARD) cohort.
  • Genome-wide association studies (GWAS) on subcortical volumes and cortical thickness.

Main Results:

  • Identified 43 genome-wide significant loci associated with brain atrophy (p < 6.41x10^-10).
  • Post-GWAS analyses (fine mapping, functional annotation, pathway enrichment) revealed biological relevance.
  • Confirmed the role of genetic factors in region-specific brain changes.

Conclusions:

  • This study enhances understanding of the genetic basis of brain atrophy.
  • Identified loci provide insights into neurodegenerative processes.
  • Findings may aid in developing early diagnostic tools and targeted therapies for neurological disorders.