Audio: LDL Metabolism and Type 2 Diabetes: What You Need to Know

Diabetes affects LDL metabolism

Introduction

In this short audio feature, we explore how low-density lipoprotein (LDL)—often called “bad cholesterol”—is affected by type 2 diabetes. You’ll hear how elevated blood sugar levels disrupt normal cholesterol handling in the body, leading to changes in the structure and behavior of LDL particles.

This audio offers a concise explanation of why people with diabetes often have smaller, denser, and more harmful LDL particles, and how that change significantly increases the risk for heart disease.

✅ Key Takeaway Messages

  1. LDL cholesterol becomes more dangerous in people with type 2 diabetes due to changes in how it’s processed and cleared from the bloodstream.
  2. High blood sugar causes LDL to glycate, making it more likely to stay in circulation longer and become oxidized.
  3. Smaller, denser LDL particles are more atherogenic, meaning they more easily penetrate artery walls and contribute to plaque formation.
  4. These modified LDL particles are less recognized by normal LDL receptors and more likely to be taken up by scavenger receptors, which accelerates plaque buildup.
  5. People with type 2 diabetes often have normal or near-normal LDL levels, but the particles are more harmful due to these metabolic changes.
  6. Controlling blood sugar is key to improving LDL quality, reducing cardiovascular damage, and protecting your arteries.
Diabetes Mellitus increase cardiac risks
Adapted from Zhang et al. Cell 2024

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References:

  1. Bonilha I, Hajduch E, Luchiari B, Nadruz W, Le Goff W, Sposito AC. The Reciprocal Relationship between LDL Metabolism and Type 2 Diabetes Mellitus. Metabolites. 2021 Nov 28;11(12):807. doi: 10.3390/metabo11120807. PMID: 34940565; PMCID: PMC8708656. https://pmc.ncbi.nlm.nih.gov/articles/PMC8708656/
  2. Basa AL, Garber AJ. Cardiovascular disease and diabetes: modifying risk factors other than glucose control. Ochsner J. 2001 Jul;3(3):132-7. PMID: 22754389; PMCID: PMC3385778. https://pmc.ncbi.nlm.nih.gov/articles/PMC3385778/
  3. Bonilha I, Hajduch E, Luchiari B, Nadruz W, Le Goff W, Sposito AC. The Reciprocal Relationship between LDL Metabolism and Type 2 Diabetes Mellitus. Metabolites. 2021 Nov 28;11(12):807. doi: 10.3390/metabo11120807. PMID: 34940565; PMCID: PMC8708656. https://pubmed.ncbi.nlm.nih.gov/34940565/
  4. Zhang, X.; van der Vorst, E.P.C. High-Density Lipoprotein Modifications: Causes and Functional Consequences in Type 2 Diabetes Mellitus. Cells 202413, 1113. https://doi.org/10.3390/cells13131113. https://www.mdpi.com/2073-4409/13/13/1113

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