[Correlation between lipid pattern and body mass index in obesity]

Area of Science:

• Cardiovascular health and metabolic disorders.
• Clinical lipidology and obesity research.

Background:

• Obesity is a significant global health concern.
• Altered lipid profiles are common in obese individuals and linked to cardiovascular disease risk.

Purpose of the Study:

• To investigate the relationship between lipid plasma levels and age, sex, and body mass index (BMI) in obese subjects.
• To understand how different lipid fractions change with increasing age and BMI across various age groups.

Main Methods:

• Plasma lipid levels were analyzed in 519 obese individuals.
• Subjects were stratified by age (7-66 years), sex, and BMI.
• Lipidemia, total cholesterol, LDL, VLDL, triglycerides, and chylomicrons were quantified.

Main Results:

• Lipidemia and total cholesterolemia showed significant increases with both age and BMI, independent of sex.
• Low-density lipoprotein (LDL) and very-low-density lipoprotein (VLDL) levels rose with age and, to a lesser extent, with BMI.
• Triglyceride levels increased from adolescence to adulthood, especially in males, but showed no sex-based difference in relation to BMI.
• Chylomicron levels remained stable across age and BMI variations.

Conclusions:

• Age and BMI are key determinants of altered lipid profiles in obese individuals.
• Specific lipid fractions like LDL and VLDL are more sensitive to age-related changes, while triglycerides show a sex-specific age-related pattern.
• Chylomicrons appear unaffected by age and BMI in this obese cohort, suggesting distinct regulatory mechanisms.