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Related Concept Videos

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Understanding serum lipids is crucial for maintaining cardiovascular health and preventing heart disease and stroke.
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Management of atherosclerosis involves an integrated strategy encompassing pharmacological treatment, surgical interventions, lifestyle changes, and nutrition therapy to address the multifactorial nature of the disease.Pharmacological TherapyA cornerstone of atherosclerosis management is the use of pharmacological agents. Statins, such as atorvastatin, are pivotal in inhibiting HMG-CoA reductase, an enzyme that catalyzes an initial step in cholesterol synthesis in the liver. This reduction in...
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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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Related Experiment Video

Updated: Oct 15, 2025

Author Spotlight: Integrated Multi-Omics Analysis for Unveiling Multicellular Immune Signatures in Clinical Heart Attack Cohorts
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Replacing Saturated Fat with Polyunsaturated Fat Modulates Peripheral Blood Mononuclear Cell Gene Expression and

Sunniva V Larsen1, Kirsten B Holven1,2, Jacob J Christensen1,2

  • 1Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Blindern, Oslo, Norway.

Molecular Nutrition & Food Research
|October 28, 2021
PubMed
Summary
This summary is machine-generated.

Replacing saturated fat with polyunsaturated fat alters gene expression in peripheral blood mononuclear cells (PBMCs), impacting cardiovascular disease (CVD) risk pathways in individuals with high cholesterol.

Keywords:
LDL cholesterolcardiovascular disease riskdietary fat qualitygene expressioninflammation

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Area of Science:

  • Nutritional Science
  • Molecular Biology
  • Cardiovascular Research

Background:

  • Dietary fat composition significantly influences cardiovascular disease (CVD) risk.
  • Understanding the molecular impact of replacing saturated fats (SFA) with polyunsaturated fats (PUFA) is crucial for CVD prevention strategies.
  • Gene expression changes in response to dietary interventions offer insights into underlying mechanisms.

Purpose of the Study:

  • To investigate the molecular mechanisms by which dietary SFA replacement with PUFA affects CVD risk.
  • To utilize a whole transcriptome approach to identify gene expression alterations in response to dietary changes.
  • To analyze changes in peripheral blood mononuclear cell (PBMC) gene expression in healthy individuals with moderate hypercholesterolemia.

Main Methods:

  • Randomized controlled trial with 115 healthy subjects with moderate hypercholesterolemia.
  • Intervention involved an 8-week diet replacing SFA with PUFA (Ex-diet) versus a control diet (C-diet).
  • Whole transcriptome analysis using microarray on RNA from PBMCs at baseline and after intervention.

Main Results:

  • 14 gene transcripts were differentially altered in the Ex-diet group compared to the C-diet group.
  • Affected transcripts relate to vascular smooth muscle cell proliferation, LDL receptor folding, and blood pressure regulation.
  • Enriched pathways included immune response, inflammation, signal transduction, development, and cytoskeleton remodeling.

Conclusions:

  • Dietary replacement of SFA with PUFA for 8 weeks modulates PBMC gene expression.
  • These modulations involve pathways directly related to cardiovascular disease risk.
  • Findings suggest a molecular basis for the cardiovascular benefits of PUFA-rich diets in specific populations.