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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...
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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.

Sitong Zhou1, Nopparat Suthprasertporn2, Danielle J Harvey3

  • 1University of California Davis Medical Center, Sacramento, CA, USA.

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

This study quantifies baseline plasma biomarkers in at-risk Americans, revealing significant sex and racial/ethnic differences. These findings are crucial for understanding vascular dementia progression and future longitudinal analyses.

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Area of Science:

  • Neurology
  • Biomarker Research
  • Neurodegenerative Diseases

Background:

  • The DVCID project aims to enroll 2250 diverse Americans for a comprehensive study.
  • It integrates cognitive assessments, blood-based analyses, and neuroimaging.
  • Baseline biomarker profiles are essential for longitudinal study objectives.

Purpose of the Study:

  • To quantify baseline plasma biomarker concentrations in a diverse cohort.
  • To examine sex and racial/ethnic differences in these biomarkers.
  • To establish a foundation for longitudinal analyses in vascular dementia research.

Main Methods:

  • Blood samples collected and processed following standardized protocols.
  • Plasma biomarkers measured using Quanterix Simoa HD-X™ Analyzer.
  • Quantified amyloid beta 40 (Aβ40), Aβ42, GFAP, NfL, t-Tau, and pTau181.

Main Results:

  • Baseline concentrations for six key plasma biomarkers reported for 636 participants.
  • Significant sex differences observed in GFAP, pTau181, and t-Tau levels.
  • Plasma biomarker concentrations varied significantly across racial/ethnic groups.

Conclusions:

  • Findings provide a strong foundation for future follow-up studies.
  • Sex and racial/ethnic differences highlight the importance of demographic factors in biomarker interpretation.
  • Future research should explore biological implications adjusting for clinical factors.