Results 61 to 70 of about 63,238 (298)

Longitudinal tracking of intra-breath respiratory impedance in preschool children

open access: yesPediatric Pulmonology, 2023
ABSTRACTBackgroundLongitudinal measurements of intra-breath respiratory impedance (Zrs) in preschool-aged children may be able to distinguish abnormal lung function trajectories in children with a history of wheezing compared to healthy ones.MethodsChildren from a prospective, longitudinal community-based cohort performed annual intra-breath ...
Matthew D. Wong   +8 more
openaire   +3 more sources

Dammarenediol II enhances etoposide‐induced apoptosis by targeting O‐GlcNAc transferase and Akt/GSK3β/mTOR signaling in liver cancer

open access: yesMolecular Oncology, EarlyView.
Etoposide induces DNA damage, activating p53‐dependent apoptosis via caspase‐3/7, which cleaves PARP1. Dammarenediol II enhances this apoptotic pathway by suppressing O‐GlcNAc transferase activity, further decreasing O‐GlcNAcylation. The reduction in O‐GlcNAc levels boosts p53‐driven apoptosis and influences the Akt/GSK3β/mTOR signaling pathway ...
Jaehoon Lee   +8 more
wiley   +1 more source

Within-breath analysis of respiratory mechanics in asthmatic patients by forced oscillation

open access: yesClinics, 2009
INTRODUCTION: The within-breath analysis of respiratory mechanics by the monofrequency Forced Oscillation Technique (mFOT) is of great interest in both physiopathology studies and the diagnosis of respiratory diseases.
Juliana Veiga   +3 more
doaj   +1 more source

Simple Wireless Impedance Pneumography System for Unobtrusive Sensing of Respiration

open access: yesSensors, 2020
This extended paper presents the development and implementation at a prototype level of a wireless, low-cost system for the measurement of the electrical bioimpedance of the chest with two channels using the AD5933 in a bipolar electrode configuration to
Pablo Aqueveque   +6 more
doaj   +1 more source

Broadband frequency dependence of respiratory impedance in rats [PDF]

open access: yesJournal of Applied Physiology, 2005
Past studies in humans and other species have revealed the presence of resonances and antiresonances, i.e., minima and maxima in respiratory system impedance (Zrs), at frequencies much higher than those commonly employed in clinical applications of the forced oscillation technique (FOT). To help understand the mechanisms behind the first occurrence of
Thamrin, Cindy   +2 more
openaire   +3 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Electrical impedance tomography monitoring in acute respiratory distress syndrome patients with mechanical ventilation during prolonged positive end-expiratory pressure adjustments

open access: yesJournal of the Formosan Medical Association, 2016
The time required to reach oxygenation equilibrium after positive end-expiratory pressure (PEEP) adjustments in mechanically ventilated patients with acute respiratory distress syndrome (ARDS) is unclear.
Chia-Fu Hsu   +6 more
doaj   +1 more source

Prevalence and prognosis of respiratory pendelluft phenomenon in mechanically ventilated ICU patients with acute respiratory failure: a retrospective cohort study

open access: yesAnnals of Intensive Care, 2022
Background Respiratory pendelluft phenomenon, defined as intrapulmonary gas redistribution caused by asynchronous alveolar ventilation, could be potentially harmful by inducing lung injury.
Yi Chi   +4 more
doaj   +1 more source

Anthropometric measures as predictive indicators of metabolic risk in a population of “holy week costaleros” [PDF]

open access: yes, 2019
Preventive measures are a priority in those groups that perform intense physical efforts without physical preparation and that can also be overweight or obese.
Fernández Ozcorta, Eduardo J.   +5 more
core   +2 more sources

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

open access: yesMolecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson   +9 more
wiley   +1 more source

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