Results 61 to 70 of about 265,018 (303)

Evaluation of the Apnea-Hypopnea Index Determined by Adaptive Servo-Ventilation Devices in Patients With Heart Failure and Sleep-Disordered Breathing

open access: yesFrontiers in Cardiovascular Medicine, 2021
Introduction: Adaptive servo-ventilation (ASV) devices are designed to suppress central respiratory events, and therefore effective for sleep-disordered breathing (SDB) in patients with heart failure (HF) and provide information about their residual ...
Satomi Imanari   +17 more
doaj   +1 more source

Dimensional Changes of Upper Airway after Rapid Maxillary Expansion: A Prospective Cone-beam Computed Tomography Study [PDF]

open access: yes, 2013
Introduction: The aim of this prospective study was to use cone-beam computed tomography to assess the dimensional changes of the upper airway in orthodontic patients with maxillary constriction treated by rapid maxillary expansion.
Bosio, Jose A   +5 more
core   +2 more sources

Chronic Hypoxia Disrupts Spermatogenesis Through ASXL2–EZH2–Mediated Microtubule Destabilization

open access: yesAdvanced Science, EarlyView.
This study reveals the mechanism by which chronic hypoxia impairs spermatogenesis via the ASXL2–EZH2 axis, hindering the transition of spermatids from round to elongated forms. Key findings reveal that under hypoxic conditions, downregulated ASXL2 expression reduces EZH2 binding to the CEP162 promoter, leading to decreased H3K27me3 modification and ...
Jun Yin   +11 more
wiley   +1 more source

Sleep apnea and the impact on cardiovascular risk in patients with Marfan syndrome [PDF]

open access: yes, 2019
Background: Marfan syndrome (MFS) is an inherited connective tissue disorder characterized by ectopia lentis, aortic root dilation and dissection and specific skeletal features.
Bauters, Fré   +8 more
core   +1 more source

Ionic–Bionic Interfaces: Advancing Iontronic Strategies for Bioelectronic Sensing and Therapy

open access: yesAdvanced Science, EarlyView.
Ionic–bionic interfaces for bioelectronics leverage ions as multifunctional mediators that combine mechanical compliance, ionic and electronic functionalities, and therapeutic effects. These systems offer real‐time biosignal transduction, effective wound dressing, responsive drug delivery, and seamless interaction between soft tissues and electronic ...
Yun Goo Ro   +6 more
wiley   +1 more source

Constant Q–Transform–Based Deep Learning Architecture for Detection of Obstructive Sleep Apnea

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2023
Obstructive sleep apnea (OSA) is a long-term sleep disorder that causes temporary disruption in breathing while sleeping. Polysomnography (PSG) is the technique for monitoring different signals during the patient’s sleep cycle, including ...
Kandukuri Usha Rani   +5 more
doaj   +1 more source

Neonatal apnea

open access: yesJornal de Pediatria, 2001
OBJECTIVE: To review medical literature related to apnea of prematurity. SOURCES: Extensive literature search and clinical practice-oriented concepts. SUMMARY OF THE FINDINGS: Apnea is one of the most common respiratory disorders in the neonatal period. Immaturity of the central nervous system is associated with instability of respiration.
openaire   +2 more sources

Respiratory‐Limbic Coupling via a Thalamic Circuit Alleviates Anxiety

open access: yesAdvanced Science, EarlyView.
This study delineates a conserved preBötCGlu→PVT→CeA circuit that gates anxiety and respiration. Activation of this circuit is anxiolytic and respiratory‐stabilizing, while its inhibition has the opposite effect. Mechanistically, PVT exerts its anxiolytic action via a disinhibitory microcircuit: its inputs preferentially target CeL GABAergic neurons ...
Shangyu Bi   +15 more
wiley   +1 more source

Artificial Piezoelectric Interface Enables Ultrafast Interfacial Ion Kinetic for Highly‐Sensitive Piezoionic Sensors

open access: yesAdvanced Science, EarlyView.
This study proposes a piezoelectric interface modification strategy to amplify the piezoionic effect. The piezoelectric interface generates an intrinsic electric field, which not only drives rapid ion migration but also concentrates polarized ions on the interface. The flexible sensor delivers superior performance, such as a quick response rate, strong
Yanyu Chen   +5 more
wiley   +1 more source

Toward a hyperventilation detection system in freediving: a proof of concept using force sensor technology

open access: yesFrontiers in Physiology
Background and aimHyperventilation before breath-hold diving (freediving) is widely accepted as a risk factor for hypoxic syncope or blackout (BO), but there is no practical way to address it before dives.
Frank Pernett   +9 more
doaj   +1 more source

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