Results 71 to 80 of about 38,746 (266)

Fractal Rigidity in Migraine [PDF]

, 2003
We study the middle cerebral artery blood flow velocity (MCAfv) in humans using transcranial Doppler ultrasonography (TCD). Scaling properties of time series of the axial flow velocity averaged over a cardiac beat interval may be characterized by two ...
Glaubic-Latka, Marta, Latka, Dariusz, Latka, Miroslaw, West, Bruce J.   +3 more
core   +2 more sources

Long‐term effects of a multidomain intervention on cognitive function and metabolic control in older adults with type 2 diabetes and mild cognitive impairment: A 42‐month follow‐up of the J‐MIND‐Diabetes study

Diabetes, Obesity and Metabolism, EarlyView.
Abstract Aims This study investigated the long‐term effects of a multidomain intervention on cognition and metabolic control in patients with type 2 diabetes and mild cognitive impairment (MCI). Materials and methods Outpatients aged 70–85 years were randomized to an 18‐month multidomain intervention (comprising metabolic/vascular risk management ...
Taiki Sugimoto, Takuya Omura, Atsushi Araki, Chie Haneda, Keiko Honda, Minoru Kishi, Toshimasa Takahashi, Kenji Toyoshima, Suguru Tsuume, Kazuaki Uchida, Hisashi Noma, Ayaka Onoyama, Yoko Yokoyama, Mio Shinozaki, Paul K. Crane, Takashi Sakurai, J‐MIND‐Diabetes Study Group   +16 more
wiley   +1 more source

Cerebral autoregulation is minimally influenced by the superior cervical ganglion in two- week-old lambs, and absent in preterm lambs immediately following delivery. [PDF]

PLoS ONE, 2013
Cerebral vessels in the premature newborn brain are well supplied with adrenergic nerves, stemming from the superior cervical ganglia (SCG), but their role in regulation of blood flow remains uncertain.
Adam J Czynski, Michael H Terry, Douglas D Deming, Gordon G Power, John N Buchholz, Arlin B Blood   +5 more
doaj   +1 more source

Non-Invasive and Minimally-Invasive Cerebral Autoregulation Assessment: A Narrative Review of Techniques and Implications for Clinical Research

Frontiers in Neurology, 2022
The process of cerebral vessels regulating constant cerebral blood flow over a wide range of systemic arterial pressures is termed cerebral autoregulation (CA).
Amanjyot Singh Sainbhi, Alwyn Gomez, Alwyn Gomez, Logan Froese, Trevor Slack, Carleen Batson, Kevin Y. Stein, Dean M. Cordingley, Dean M. Cordingley, Arsalan Alizadeh, Frederick A. Zeiler, Frederick A. Zeiler, Frederick A. Zeiler, Frederick A. Zeiler, Frederick A. Zeiler   +14 more
doaj   +1 more source

Aquaporin-4 Functionality and Virchow-Robin Space Water Dynamics: Physiological Model for Neurovascular Coupling and Glymphatic Flow. [PDF]

, 2017
The unique properties of brain capillary endothelium, critical in maintaining the blood-brain barrier (BBB) and restricting water permeability across the BBB, have important consequences on fluid hydrodynamics inside the BBB hereto inadequately ...
Igarashi, Hironaka, Kwee, Ingrid L, Nakada, Tsutomu, Suzuki, Yuji   +3 more
core   +1 more source

Dynamic cerebral autoregulation in Alzheimer’s disease and mild cognitive impairment: A systematic review [PDF]

, 2023
Rachel Anna Marjet Heutz, Jurgen A.H.R. Claassen, Sanne Feiner, Aaron Davies, Dewakar Gurung, Ronney B. Panerai, Rianne de Heus, Lucy Beishon   +7 more
openalex   +1 more source

Neurometabolic Response to Apneic Stimuli Tracks Global Grey Matter Volume Deficits in Patients With Obstructive Sleep Apnea

Journal of Sleep Research, EarlyView.
ABSTRACT Obstructive sleep apnea (OSA) has been linked to cortical atrophy and increased risk of neurodegeneration, a process potentially mediated by neurometabolic dysregulation. Recent work using high temporal‐resolution metabolic MRI found greater changes in the cerebral metabolic rate of oxygen consumption (CMRO2) during cued breath‐hold stimuli ...
Jeffrey B. Dennison, Pei‐Hsin Wu, Michael C. Langham, Richard J. Schwab, John A. Detre, Felix W. Wehrli   +5 more
wiley   +1 more source

Mathematical modeling of local perfusion in large distensible microvascular networks [PDF]

, 2016
Microvessels -blood vessels with diameter less than 200 microns- form large, intricate networks organized into arterioles, capillaries and venules. In these networks, the distribution of flow and pressure drop is a highly interlaced function of single ...
Causin, Paola, Malgaroli, Francesca
core   +2 more sources

Feasibility of superimposed supine cycling and lower body negative pressure as an effective means of prolonging exercise tolerance in individuals experiencing persisting post‐concussive symptoms: Preliminary results

Experimental Physiology, EarlyView.
Abstract To examine the feasibility, utility and safety of superimposed lower body negative pressure (LBNP) and tilt during supine cycling in individuals suffering from persisting post‐concussive symptoms (PPCS). Eleven individuals aged 17–31 (6 females/5 males) participated in two randomized separate visits, 1 week apart.
Raelyn Javra, Joel S. Burma, Nathan E. Johnson, Jonathan D. Smirl   +3 more
wiley   +1 more source

Spinal cord autoregulation using near-infrared spectroscopy under normal, hypovolemic, and post-fluid resuscitation conditions in a swine model: a comparison with cerebral autoregulation

Journal of Intensive Care, 2020
Background Few studies have investigated spinal cord autoregulation using near-infrared spectroscopy (NIRS). Here, we assessed spinal cord autoregulation under normal, hypovolemic, and post-fluid resuscitation conditions compared with cerebral ...
Tadayoshi Kurita, Shingo Kawashima, Koji Morita, Yoshiki Nakajima   +3 more
doaj   +1 more source