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Hormonal appetite control is altered by shift work: a preliminary study.

Cibele Aparecida Crispim1, Jim Waterhouse, Ana Raimunda Dâmaso

  • 1Universidade Federal de São Paulo, Sao Paulo, Brazil. cibelecrispim@gmail.com

Metabolism: Clinical and Experimental
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PubMed
Summary
This summary is machine-generated.

Shift work affects appetite-regulating hormones. Early morning shift workers show lower leptin and ghrelin levels, impacting their appetite compared to day or night shift workers.

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Area of Science:

  • Endocrinology
  • Chronobiology
  • Nutritional Science

Background:

  • Shift work is linked to nutritional issues and obesity.
  • Hormonal regulation of appetite, including leptin and ghrelin, is crucial for food intake.
  • Limited data exists on how shift work impacts these key appetite hormones.

Purpose of the Study:

  • To investigate daily concentrations of leptin, nonacylated ghrelin, and acylated ghrelin.
  • To assess appetite ratings in male shift workers across different schedules.
  • To understand the hormonal and appetite responses to fixed day, early morning, and night shifts.

Main Methods:

  • Measured daily concentrations of leptin, nonacylated ghrelin, and acylated ghrelin.
  • Assessed appetite using a validated questionnaire.
  • Collected blood samples every 4 hours over 24 hours from 3 groups: night (n=9), early morning (n=6), and day (n=7) shift workers.

Main Results:

  • Day shift workers had lower morning leptin than early morning shift workers.
  • Day shift workers had lower noon leptin than night shift workers.
  • Early morning shift workers exhibited lower nonacylated and acylated ghrelin and generally lower appetite ratings compared to day shift workers.

Conclusions:

  • Early morning shift work is associated with reduced appetite and lower circulating levels of leptin and ghrelin.
  • These hormonal changes may contribute to altered energy balance in shift workers.
  • Further research is needed to elucidate the specific nutritional needs of early morning shift workers.