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Related Concept Videos

Blood Studies for Cardiovascular System I: Cardiac Biomarkers01:20

Blood Studies for Cardiovascular System I: Cardiac Biomarkers

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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...
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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
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Biomarkers.

Changi Kim1, Mi-Young Oh2

  • 1Seoul national university, Seoul, Seoul, Korea, Republic of (South).

Alzheimer'S & Dementia : the Journal of the Alzheimer'S Association
|December 24, 2025
PubMed
Summary
This summary is machine-generated.

Brain resilience, the difference between brain age and chronological age, is linked to post-stroke dementia. Lower brain resilience may increase dementia risk after a stroke, suggesting its potential as a predictive biomarker.

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Area of Science:

  • Neuroimaging and Neurology
  • Biomarkers in Neurodegeneration

Background:

  • Brain age, derived from neuroimaging, reflects brain health.
  • Brain resilience, the difference between brain age and chronological age, indicates an individual's capacity to maintain brain health.
  • The role of brain age and resilience in post-stroke dementia is not well-established.

Purpose of the Study:

  • To investigate the association between brain resilience and the incidence of post-stroke dementia.
  • To explore brain age and resilience as potential biomarkers for predicting post-stroke dementia.

Main Methods:

  • Structural MRI data from 81 patients were analyzed to calculate brain age using FreeSurfer and a ridge regression model.
  • Brain resilience was computed as the difference between predicted brain age and chronological age.
  • Statistical analysis examined the relationship between brain resilience, National Institutes of Health Stroke Scale scores, and post-stroke dementia diagnosis.

Main Results:

  • Brain resilience showed a significant association with post-stroke dementia (OR: 1.07, p=0.02).
  • Higher National Institutes of Health Stroke Scale scores were also linked to an increased risk of dementia (OR: 1.16, p=0.02).

Conclusions:

  • Brain resilience may be a significant factor in the development of post-stroke dementia.
  • Brain age and resilience show promise as valuable biomarkers for predicting post-stroke dementia and informing clinical strategies.