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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
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Biomarkers.

Jean Marques Brizola1, Chiara Maria Righini1, Carlos Alberto Buchpiguel1

  • 1University of São Paulo Medical School, São Paulo, São Paulo, Brazil.

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

Cannabidiol (CBD) shows potential in mitigating age-related neuroinflammation in an Alzheimer

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Area of Science:

  • Neuroscience
  • Pharmacology
  • Biomedical Imaging

Background:

  • Cannabidiol (CBD) exhibits known anti-inflammatory and neuroprotective properties.
  • Preclinical research suggests CBD may delay or prevent neurodegenerative diseases like Alzheimer's disease (AD).
  • This study investigates CBD's effects on an AD animal model during aging.

Purpose of the Study:

  • To evaluate the therapeutic potential of CBD in an aged animal model of Alzheimer's disease (AD).
  • To assess the impact of CBD on brain metabolism and neuroinflammation using positron emission tomography (PET).
  • To explore sex-specific differences in response to CBD treatment in the context of aging and AD.

Main Methods:

  • Male and female 3xTg-AD mice were administered CBD (20 mg/kg) or vehicle for 30 days.
  • Positron emission tomography (PET) imaging ([18F]FDG and [11C]PK11195) was used to measure brain metabolism and neuroinflammation at various ages.
  • Behavioral tests (novel object recognition and elevated plus maze) assessed cognitive function and anxiety.

Main Results:

  • Significant sex differences in brain metabolism ([18F]FDG uptake) were observed in both vehicle and CBD-treated groups.
  • CBD treatment appeared to increase brain metabolism in male mice and partially mitigate reduced metabolism in aged female mice.
  • PET imaging detected aging-induced changes more sensitively than behavioral assessments, with no significant sex effect on neuroinflammation markers ([11C]PK11195).

Conclusions:

  • The study highlights prominent sex differences in brain metabolism during aging in the 3xTg-AD model.
  • CBD demonstrated a potential neuroprotective role by mitigating age-related neuroinflammatory events.
  • PET imaging is a sensitive tool for evaluating aging-related brain changes in this AD model, outperforming behavioral tests.