ArticleSleep science (Sao Paulo, Brazil)
Effect of night-shift work on cortisol circadian rhythm and melatonin levels.
Article in Sleep science (Sao Paulo, Brazil). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
21 citing papers in PubMed, 36 citations in OpenAlex.
- Burnout Syndrome Predictors in Nursing Professionals During and After the COVID-19 Pandemic: A Prospective Cohort.Journal of clinical nursing · 2026Article
- Measuring cortisol in Cushing syndrome: diagnosis, monitoring, and cortisol circadian rhythm improvement.The Journal of clinical endocrinology and metabolism · 2026Review
- Effects of Shift Work Type on Sleep Quality and Cortisol Regulation Among Nurses: A Prospective Observational Study.International journal of environmental research and public health · 2026Observational
- Retinal ganglion cell degeneration in glaucoma disrupts HPA axis temporal organization and dampens corticosterone production.Journal of neuroendocrinology · 2026Article
- Sleep and circadian disruption reshape immune homeostasis in oral tissues: mechanistic roles of melatonin and cortisol in periodontal disease and xerostomia.Frontiers in immunology · 2026Review
- Nutritional adaptation to circadian misalignment: implications for musculoskeletal health in modern lifestyles.Frontiers in nutrition · 2026Review
- The relationship between sleep quality and occupational identity among psychiatric night shift nurses.Frontiers in psychiatry · 2026Article
- Latent profiles of humanistic care competence among psychiatric nurses: a cross-sectional study.Frontiers in psychology · 2026Article
- Article
- Elevated cardiometabolic risk markers in evening chronotype shift workers: a case-control study in male workers.The British journal of nutrition · 2025Article
- Practical guidance for stopping glucocorticoids.Australian prescriber · 2025Review
- Chrononutrition and Energy Balance: How Meal Timing and Circadian Rhythms Shape Weight Regulation and Metabolic Health.Nutrients · 2025Review
- Sleep disorders among Tunisian night-shift workers: a cross-sectional study.Sleep & breathing = Schlaf & Atmung · 2025Article
- Impact of circadian rhythm preference on performance in China's standardized residency training: The mediating role of loneliness.PloS one · 2025Article
- Determinants of sleep quality and their impact on health outcomes: a cross-sectional study on night-shift nurses.Frontiers in psychiatry · 2024Article
- Work Reward Moderates the Association Between Work Effect and Workplace Violence Among Medical Staff in China.Journal of multidisciplinary healthcare · 2024Article
- The Correlation Between Night Shift Work Schedules, Sleep Quality, and Depression Symptoms.Neuropsychiatric disease and treatment · 2023Article
- Associations between sleep and circadian disruption in shift work and perpetration of interpersonal violence.Frontiers in sleep · 2023Review
- Planetary sleep medicine: Studying sleep at the individual, population, and planetary level.Frontiers in public health · 2022Review
- Comparative Analysis of Metabolic and Endocrine Parameters in Night Shift versus Day Shift Workers: Insights from an Observational Study.Indian journal of endocrinology and metabolismArticle
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Objectives: Night-shift work has been associated with several negative effects on worker's health, possibly due to circadian desynchronization, sleep deprivation and suppression of nocturnal melatonin secretion including exposure to light during the work shift. The objective of this study was to evaluate the impact of fixed night-shift work versus day-shift work on the sleep-wake cycle and on the night and day levels of cortisol and melatonin. Material and Methods: Saliva samples were obtained from 36 individuals, 19 day workers (12 women and 7 men) and 17 night workers (12 women and 5 men) from a university hospital in southern Brazil, with no history of chronic diseases. Demographic and personal information were obtained through a self-administered questionnaire and sleep information by the Munich chronotype questionnaire. Results: Salivary cortisol showed normal circadian rhythm in day- and night-shift workers, but was attenuated in night-shift workers during their working hours and on leave days. Night workers sleep fewer hours at night and have higher negative social jet lag than day workers. Conclusion: Intervals between night shifts can be beneficial for the recovery of the hypothalamic-pituitary-adrenal axis, minimizing the negative effects on workers' health, in addition to a preventive approach to aspects related to sleep hygiene and healthy life habits.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.