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Related Concept Videos

Lipids: Dietary Sources and Requirements01:18

Lipids: Dietary Sources and Requirements

Lipids are an essential component of a balanced human diet. Triglycerides, which make up the majority of dietary lipids, are found in both saturated fats—commonly present in meat, dairy products, and certain tropical plants like coconut, and hydrogenated oils such as margarine and baking shortenings (trans fats)—and unsaturated fats, which are abundant in seeds, nuts, olive oil, and most vegetable oils. The main sources of cholesterol include egg yolks, various meats and organ meats, shellfish,...
Cholesterol: Significance and Regulation01:29

Cholesterol: Significance and Regulation

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Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers

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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Natriuretic Peptides (BNP)
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Blood Studies for Cardiovascular System III: Serum Lipid Profile01:25

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Coronary Artery Disease IV: Preventive Measures

Effective preventive measures for coronary artery disease (CAD) focus on controlling modifiable risk factors, including cholesterol abnormalities and lifestyle changes.Cholesterol ManagementFirst, the Mediterranean diet and the American Heart Association advocate for maintaining low-density lipoprotein (LDL) cholesterol levels below 100 mg/dL, with a more stringent recommendation of below 70 mg/dL for individuals at high risk. LDL cholesterol, often termed "bad cholesterol," can lead to the...
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Atherosclerosis III: Management

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Related Experiment Video

Updated: Jun 25, 2026

Cell-free Biochemical Fluorometric Enzymatic Assay for High-throughput Measurement of Lipid Peroxidation in High Density Lipoprotein
07:29

Cell-free Biochemical Fluorometric Enzymatic Assay for High-throughput Measurement of Lipid Peroxidation in High Density Lipoprotein

Published on: October 12, 2017

Total cholesterol level decrease predicts higher mortality in chronic heart failure.

Mariana Matos1, Ana Neves1, Sérgio Madureira1

  • 1Service of Internal Medicine, São João University Hospital, Porto, Portugal.

Minerva Cardiology and Angiology
|March 28, 2025
PubMed
Summary
This summary is machine-generated.

A significant decrease in total cholesterol (TC) levels in heart failure patients is linked to increased mortality risk. This finding questions the use of statins in heart failure management.

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A Murine Model of Hyperlipidemia-Induced Heart Failure with Preserved Ejection Fraction
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A Murine Model of Hyperlipidemia-Induced Heart Failure with Preserved Ejection Fraction

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Last Updated: Jun 25, 2026

Cell-free Biochemical Fluorometric Enzymatic Assay for High-throughput Measurement of Lipid Peroxidation in High Density Lipoprotein
07:29

Cell-free Biochemical Fluorometric Enzymatic Assay for High-throughput Measurement of Lipid Peroxidation in High Density Lipoprotein

Published on: October 12, 2017

A Murine Model of Hyperlipidemia-Induced Heart Failure with Preserved Ejection Fraction
03:42

A Murine Model of Hyperlipidemia-Induced Heart Failure with Preserved Ejection Fraction

Published on: March 29, 2024

Area of Science:

  • Cardiology
  • Clinical Research
  • Biomarkers

Background:

  • Lower total cholesterol (TC) is associated with adverse outcomes in heart failure (HF).
  • The prognostic significance of TC variation in HF patients remains unclear.
  • Understanding TC dynamics is crucial for HF management.

Purpose of the Study:

  • To investigate the impact of TC variation on mortality in patients with chronic heart failure.
  • To determine if a decrease in TC levels predicts poor outcomes in HF.
  • To evaluate the association between TC changes and all-cause mortality.

Main Methods:

  • Retrospective analysis of adult outpatients with chronic HF and systolic dysfunction (2012-2020).
  • TC variation calculated as percentage change from baseline to 1-year follow-up.
  • Cox-regression analysis used to assess mortality risk associated with a TC decrease of ≥10%.

Main Results:

  • A total of 362 patients were analyzed; 35.1% experienced a ≥10% decrease in TC within the first year.
  • Patients with a ≥10% TC decrease had a higher mortality rate (41.7% vs. 32.8%).
  • Multivariate analysis revealed an independent 71% increased risk of all-cause death (HR 1.71) for patients with ≥10% TC decrease.

Conclusions:

  • A ≥10% decrease in TC independently predicts a significantly higher risk of mortality in heart failure patients.
  • These findings support the 'cholesterol paradox' in HF.
  • The results raise questions about the efficacy and safety of statin therapy in this population.