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External trigeminal nerve stimulation (eTNS) Exhibits relaxation effects in fatigue states following napping deprivation.
Neuroscience
December 2024
Engineering Research Center of Molecular and Neuro Imaging of the Ministry of Education, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China; Intelligent Non-invasive Neuromodulation Technology and Transformation Joint Laboratory, Xidian University, Xi'an, Shaanxi 710126, China; Guangzhou Institute of Technology, Xidian University, Xi'an, Shaanxi, China. Electronic address:
Background: In the face of inevitable declines in alertness and fatigue resulting from sleep deprivation, effective countermeasures are essential for maintaining performance. External trigeminal nerve stimulation (eTNS) presents a potential avenue for regulating alertness by activating the locus coeruleus and reticular activating system.
Methods: Here, we conducted a within-subject study with 66 habitual nappers, subjecting them to afternoon nap-deprivation and applying either 20-minute of 120 Hz eTNS or sham stimulation.
A prospective, self-controlled study of sub-plateau heart rate variability in healthy adults.
Front Physiol
December 2024
Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, China.
Background: The low-pressure, hypoxic environment characteristic of high-altitude regions significantly affects the cardiovascular and autonomic nervous system functions of individuals, consequently impairing their sleep quality. Heart rate variability, a non-invasive indicator of autonomic nervous system activity and balance within the cardiovascular system, has not been thoroughly investigated in terms of its patterns during acclimatization and de-acclimatization phases for individuals traveling to and residing in high-altitude areas and its relationship with sleep stability.
Methods: Data was collected from 22 medical staff members who traveled from Chengdu to Yecheng, with measurements taken before leaving Chengdu, 1 week in Yecheng, 3 months in Yecheng, and 1 week after returning to Chengdu.
Prenatal Dexamethasone Programs Autonomic Dysregulation in Female Rats.
Am J Physiol Heart Circ Physiol
December 2024
Department of Basic Medical Sciences, University of Arizona College of Medicine, Phoenix, Arizona, USA.
Autonomic dysfunction is associated with cardiovascular and neurological disease, including hypertension, heart failure, anxiety, and stress-related disorders. Prior studies demonstrated that late gestation exposure to dexamethasone (DEX) resulted in female-biased increases in stress-responsive mean arterial pressure (MAP) and heart rate (HR), suggesting a role for glucocorticoid-mediated programming of autonomic dysfunction. The present study investigated the influence of sympathetic (SYM) or parasympathetic (PS) blockade on cardiovascular function in male and female rat offspring of mothers injected with DEX (gestation days [GD]18-21).
View Article and Find Full Text PDFAssociation between cardiac autonomic regulation, visceral adipose tissue, cardiorespiratory fitness and ambient air pollution: 4HAIE study (Program-4).
PLoS One
December 2024
Department of Human Movement Studies & Human Motion Diagnostic Centre, University of Ostrava, Ostrava, Czech Republic.
Background: The main objective of the present cross-sectional cohort study was to determine whether there is an association between cardiac autonomic regulation, as expressed through heart rate variability (HRV), and cardiorespiratory fitness (CRF), visceral adipose tissue (VAT), and over the long-term living in areas with low or high air pollution.
Methods: The study sample included 1036 (487 females) healthy runners (603) and inactive participants (age 18-65 years) who had lived for at least 5 years in an area with high (Moravian-Silesian; MS) or low (South Bohemian; SB) air pollution in the Czech Republic. A multivariable regression analysis was used to evaluate the associations between multiple independent variables (CRF (peak oxygen consumption), VAT, sex, socioeconomic status (education level), and region (MS region vs.
Influence of acute respiratory diseases on hemodynamic in school-age children.
Wiad Lek
December 2024
BUKOVINIAN STATE MEDICAL UNIVERSITY, CHERNIVTSI, UKRAINE.
Objective: Aim: To assess changes of blood pressure and central hemodynamic in children with acute respiratory diseases.
Patients And Methods: Materials and Methods: A total of 40 children aged 10-12 years with community acquired pneumonia and acute bronchitis in the period of early recovery were enrolled in the study with data comparing with control group of 30 healthy children. The hemodynamic parameters included blood pressure and calculation of systolic and minute blood output volumes.
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