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To evaluate the association between sleep parameters and hypovitaminosis D in rotating shift drivers. We conducted a cross-sectional study on 82 male rotating shift workers (24-57 years old) with at least one cardiovascular risk factor (such as hyperglycemia, dyslipidemia, abdominal obesity, physical inactivity, hypertension, and smoking). Polysomnography was used to evaluate sleep parameters. Logistic regression was used to model the association between hypovitaminosis D and sleep parameters after adjustment for relevant covariates. Hypovitaminosis D (< 20 ng/mL) was seen in 30.5% of the workers. Shift workers with hypovitaminosis D had lower sleep efficiency (odds ratio [OR]: 3.68; 95% confidence interval [CI]: 1.95-5.53), lower arterial oxygen saturation (OR: 5.35; 95% CI: 3.37-6.12), and increased microarousal index (OR: 3.85; 95% CI: 1.26-5.63) after adjusting. We suggest that hypovitaminosis D is associated with greater sleep disturbances in rotating shift workers.
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http://dx.doi.org/10.1055/s-0043-1767748 | DOI Listing |
Ann Am Thorac Soc
September 2025
University of Florida, Department of Medicine, Gainesville, Florida, United States;
Background: Pulmonary hypertension (PH) is a systemic illness with increasingly subtle disease manifestations including sleep disruption. Patients with PH are at increased risk for disturbances in circadian biology, although to date there is no data on "morningness" or "eveningness" in pulmonary vascular disease.
Research Questions: Our group studied circadian rhythms in PH patients based upon chronotype analysis, to explore whether there is a link between circadian parameters and physiologic risk-stratifying factors to inform novel treatment strategies in patients with PH?
Study Design And Methods: We serially recruited participants from July 2022 to March 2024, administering in clinic the Munich Chronotype Questionnaire (MCTQ).
Sleep
September 2025
Center for Sleep Medicine, Hospices Civils de Lyon, Lyon 1 University, Lyon, F-69000, France.
Current treatments for narcolepsy type 1 (NT1) have little impact on psychiatric, cognitive and metabolic comorbidities. Here, we evaluated the feasibility, safety and efficacy of a prospective Exercise Training (ET) program on sleep-related symptoms and comorbidities in NT1. Sedentary adult with NT1 participated in a 6-week supervised ET program followed by a 18-week self-directed program.
View Article and Find Full Text PDFCrit Care Explor
September 2025
Division of Pulmonary, Allergy, Critical Care, and Sleep, University of Minnesota, Minneapolis, MN.
Mean airway pressure, a monitored variable continuously available on the modern ventilator, is the pressure measured at the airway opening averaged over the time needed to complete the entire respiratory cycle. Mean airway pressure is well recognized to connect three key physiologic processes in mechanical ventilation: physical stretch, cardiovascular dynamics, and pulmonary gas exchange. Although other parameters currently employed in adults to determine "safe" ventilation are undoubtedly valuable for daily practice, all have limitations for continuous monitoring of ventilation hazard.
View Article and Find Full Text PDFCureus
August 2025
Pharmacology, Indira Gandhi Institute of Medical Sciences, Patna, IND.
Background Delirium and sleep disturbances are common in critically ill patients and are associated with adverse outcomes, including prolonged intensive care unit (ICU) stays. Ramelteon, a melatonin receptor agonist, may improve sleep and reduce delirium by regulating circadian rhythms. This study evaluated the efficacy of ramelteon in shortening ICU stay, decreasing delirium incidence and duration, and improving sleep quality in critically ill patients.
View Article and Find Full Text PDFSleep Health
September 2025
Auburn University, Auburn, Alabama, USA.
Objectives: To advance our understanding of sleep among sexual-minority (SM) youth using actigraphy and to assess sleep as a buffer against minority stress (i.e., discrimination) for SM youth.
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