Results 21 to 30 of about 48,831 (256)

Pinpointing brainstem mechanisms responsible for autonomic dysfunction in Rett syndrome:therapeutic perspectives for 5-HT1A agonists [PDF]

open access: yes, 2014
Rett syndrome is a neurological disorder caused by loss of function of methyl-CpG-binding protein 2 (MeCP2). Reduced function of this ubiquitous transcriptional regulator has a devastating effect on the central nervous system.
Abdala, Ana Paula   +2 more
core   +3 more sources

Can hyper-synchrony in meditation lead to seizures? Similarities in meditative and epileptic brain states [PDF]

open access: yes, 2014
Meditation is used worldwide by millions of people for relaxation and stress relief. Given sufficient practice, meditators may also experience a variety of altered states of consciousness.
Lindsay, Shane
core   +1 more source

Ventilatory response to increasing body temperature: Characteristics and effect on central fatigue

open access: yesJournal of Physical Fitness and Sports Medicine, 2015
More than a hundred years ago, it was first reported that increases in body temperature stimulate minute ventilation. Since then, the characteristics, mechanisms and physiological meaning of this ventilatory response to increasing body temperature, so ...
Keiji Hayashi
doaj   +1 more source

Time course of hemolysis in respiratory alkalosis [PDF]

open access: yesActa Medica Iranica, 1969
Blood pH and plasma hemoglobin concentration were measured in dog undergoing hyperventilation with or without 6 %CO 2. Blood pH rose in the first minutes in the alkalotic group and hemolysis appeared mostly during second hour after alkalosis was ...
A. Babaknia, M.A. Khoyi
doaj   +2 more sources

Vascular changes in the rat brain during chronic hypoxia in the presence and absence of hypercapnia. [PDF]

open access: yes, 2005
Changes in brain vascularity in adult rats during adaptation to chronic normobaric hypoxia with or without elevated CO(2) were morphometrically investigated.
Hayashida, Yoshiaki   +6 more
core   +1 more source

Regularity of Respiratory Waveform Depends on Ventilation Parameters [PDF]

open access: yes, 2020
Entropy is a nonlinear method for quantifying the regularity and order of a system. Entropy was originally born from thermodynamics and is now used in various fields, such as statistical mechanics and information ethics.
宮下 拓麻
core   +1 more source

About the use of omega-electroencephalography to estmate functional and metabolic state of nervous tissue of the brain during hyperventilation

open access: yesБюллетень сибирской медицины, 2019
Objectives. The aim of this study was to investigate diagnostic capabilities of a new electrophysiological method  of omega-electroencephalography in the  estimation  of change  in functional  and metabolic  state  of the cells of nervous tissue during ...
S. E. Murik
doaj   +1 more source

Evidence-based medicine and progress in the medical sciences [PDF]

open access: yes, 2011
The question what scientific progress means for a particular domain such as medicine seems importantly different from the question what scientific progress is in general. While the latter question received ample treatment in the philosophical literature,
Ayob   +15 more
core   +1 more source

Hyperventilation Therapy for Control of Posttraumatic Intracranial Hypertension

open access: yesFrontiers in Neurology, 2017
During traumatic brain injury, intracranial hypertension (ICH) can become a life-threatening condition if it is not managed quickly and adequately. Physicians use therapeutic hyperventilation to reduce elevated intracranial pressure (ICP) by manipulating
Daniel Agustín Godoy   +5 more
doaj   +1 more source

Sub-cortical and brainstem sites associated with chemo-stimulated increases in ventilation in humans [PDF]

open access: yes, 2010
We investigated the neural basis for spontaneous chemo-stimulated increases in ventilation in awake, healthy humans. Blood oxygen level dependent (BOLD) functional MRI was performed in nine healthy subjects using T2weighted echo planar imaging.
Ackland   +67 more
core   +2 more sources

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