Serum lipoproteins in day and shift workers: a prospective study

Area of Science:

• Occupational Health
• Cardiovascular Health
• Nutritional Science

Background:

• Shift work is increasingly prevalent and associated with adverse health outcomes.
• Dietary habits and serum lipoproteins are critical factors in cardiovascular health.
• Understanding the impact of shift work on metabolic markers is essential for preventative strategies.

Purpose of the Study:

• To investigate the effects of shift work on dietary patterns and serum lipoproteins.
• To compare changes in lipoproteins between shift workers and day workers over six months.
• To explore the relationship between dietary fiber intake and lipoprotein changes in shift workers.

Main Methods:

• A longitudinal study comparing 12 shift workers and 13 day workers.
• Measurements of diet and serum lipoproteins (including apoB and apoA-1) were taken at baseline and after six months.
• Analysis included changes in total cholesterol, triglycerides, systolic blood pressure, and the apoB/apoA-1 ratio.

Main Results:

• No significant changes in total cholesterol or serum triglycerides were observed in either group.
• Both groups showed a decrease in systolic blood pressure.
• The apoB/apoA-1 ratio increased significantly more in shift workers (18%) than in day workers (5%).
• This increase in the apoB/apoA-1 ratio correlated inversely with changes in dietary fiber intake.

Conclusions:

• Shift work is associated with unfavorable changes in lipoprotein profiles, indicated by an increased apoB/apoA-1 ratio.
• Reduced dietary fiber intake may exacerbate these adverse lipoprotein changes in shift workers.
• Findings suggest a need for dietary interventions to mitigate cardiovascular risks in shift workers.