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

Kyle R Pellerin1, Tania Anderson2, Maria Camitan3

  • 1Massachusetts General Hospital, Boston, MA, USA.

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

Late-onset unexplained epilepsy (LoUE) significantly increases dementia risk. The ELUCID study investigates this link, tracking cognitive changes in LoUE patients to understand dementia development mechanisms.

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Area of Science:

  • Neurology
  • Geriatrics
  • Epidemiology

Background:

  • Late-onset unexplained epilepsy (LoUE), epilepsy beginning after age 55 without a clear cause, is a significant dementia risk factor.
  • Individuals with LoUE face a 2-3 times higher risk of developing dementia, with up to 25% affected within four years.
  • The underlying mechanisms connecting LoUE to dementia remain poorly understood.

Purpose of the Study:

  • To investigate the mechanisms linking LoUE to dementia.
  • To predict outcomes of mild cognitive impairment and dementia in LoUE patients.
  • To define the relationship between LoUE and Alzheimer's disease and related dementias.

Main Methods:

  • The ELUCID Study is a multi-center, prospective longitudinal observational study.
  • Enrollment of 600 participants with LoUE (without dementia) across 7 sites.
  • Baseline evaluations include clinical history, cognitive testing, MRI, EEG, and blood draws, with follow-ups every six months and annual cognitive testing.

Main Results:

  • The initial 67 participants had a mean age of 67.9 years, with 38.8% females.
  • Common vascular risk factors included hypertension (51%), hyperlipidemia (58%), and diabetes (6%).
  • Most cognitive test scores were within the normal range, though 32.8% reported subjective memory decline.

Conclusions:

  • The ELUCID Study is a comprehensive longitudinal investigation into LoUE and its association with dementia.
  • This study will elucidate the relationship between LoUE and Alzheimer's disease and related dementias.
  • Early findings provide baseline demographic and clinical characteristics of the LoUE population.