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Related Experiment Videos

Ascorbic acid and plasma lipids

P F Jacques1, S I Sulsky, G A Perrone

  • 1USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02111.

Epidemiology (Cambridge, Mass.)
|January 1, 1994
PubMed
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Higher ascorbic acid (vitamin C) levels correlate with improved plasma lipid profiles in men, showing lower total cholesterol and LDL cholesterol. In women, the associations are less pronounced, suggesting sex-specific effects of vitamin C on cardiovascular health markers.

Area of Science:

  • Cardiovascular Health
  • Nutritional Biochemistry
  • Lipid Metabolism

Background:

  • Plasma lipids are crucial indicators of cardiovascular disease risk.
  • Ascorbic acid (vitamin C) is a vital antioxidant with potential roles in metabolic health.
  • Existing research suggests a link between ascorbic acid and lipid profiles, but findings require further clarification.

Purpose of the Study:

  • To investigate the relationship between plasma ascorbic acid levels and various plasma lipid parameters in a cohort of adult men and women.
  • To explore potential sex differences in the association between ascorbic acid and lipid profiles.
  • To determine if ascorbic acid concentration influences high-density lipoprotein (HDL) cholesterol, total cholesterol, low-density lipoprotein (LDL) cholesterol, and triglyceride levels.

Main Methods:

Related Experiment Videos

  • Cross-sectional analysis of 256 men and 221 women aged 20-65 years.
  • Measurement of plasma lipid profiles, including total cholesterol, HDL cholesterol, LDL cholesterol, and triglycerides.
  • Statistical assessment of the association between plasma ascorbic acid concentrations and lipid parameters, with consideration for modifying factors like glucose concentration.

Main Results:

  • In men, increased ascorbic acid was associated with higher HDL cholesterol and lower total:HDL cholesterol ratio, total cholesterol, LDL cholesterol, and triglycerides.
  • The association between ascorbic acid and the total:HDL cholesterol ratio in men was influenced by glucose concentration.
  • In women, associations between ascorbic acid and lipid parameters were generally weak or absent, with some complex interactions observed for HDL cholesterol and total:HDL cholesterol ratio at specific ascorbic acid thresholds.

Conclusions:

  • Ascorbic acid levels show a significant association with favorable plasma lipid profiles in men.
  • The relationship between ascorbic acid and lipid metabolism appears to be sex-specific, with stronger effects observed in men.
  • Further research is warranted to elucidate the mechanisms underlying ascorbic acid's influence on lipid metabolism and its clinical implications for cardiovascular health.