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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.
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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Dried Blood Spot Collection of Health Biomarkers to Maximize Participation in Population Studies
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バイオマーカー

Jacklyn Leonardo1, Gurveen Kaur Sandhu1, Ashwati Vipin2

  • 1Dementia Research Centre (Singapore), Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore.

Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 25, 2025
PubMed
まとめ
この要約は機械生成です。

血管要因は東南アジア人の認知症バイオマーカーに著しく影響し、アミロイド負担、GFAP、NfL、pTau181が高い値を示した。多様な集団における認知症リスクの理解には、地域特異的な研究が不可欠である。

キーワード:
認知症バイオマーカー東南アジア血管要因GFAPNfLpTau181アミロイドタウ地域特異的研究

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科学分野:

  • Neurology; Biomarker Research; Population Health

背景:

  • Dementia research predominantly focuses on Western populations, neglecting Southeast Asia's ethnic diversity.

研究 の 目的:

  • To investigate demographic, genetic, and cerebral white matter influences on blood-based dementia biomarkers in Singapore.

主な方法:

  • Analysis of 1,646 participants from the Biomarker and Cognition Study Singapore (BIOCIS).

主要な成果:

  • Fazekas positivity correlated with altered biomarkers in Cognitively Unimpaired individuals (excluding Aβ42/40 ratio).
  • In Mild Cognitive Impairment, vascular burden (Fazekas/Staals positivity) linked to elevated GFAP, pTau181, and NfL.
  • The BIOCIS MCI cohort exhibited lower amyloid burden and APOE4 positivity but higher white matter hyperintensities compared to Western cohorts.

結論:

  • Fazekas positivity influences dementia biomarker profiles in Southeast Asians, emphasizing vascular contributions.