Results 31 to 40 of about 1,171,767 (399)

Regional blood volume and peripheral blood flow in postural tachycardia syndrome.

American Journal of Physiology. Heart and Circulatory Physiology, 2004
Variants of postural tachycardia syndrome (POTS) are associated with increased ["high-flow" POTS (HFP)], decreased ["low-flow" POTS (LFP)], and normal ["normal-flow" POTS (NFP)] blood flow measured in the lower extremities while subjects were in the ...
J. Stewart, L. Montgomery
semanticscholar   +1 more source

A spatial covariance (123)I-5IA-85380 SPECT study of α4β2 nicotinic receptors in Alzheimer's disease [PDF]

, 2016
Alzheimer's disease (AD) is characterized by widespread degeneration of cholinergic neurons, particularly in the basal forebrain. However, the pattern of these deficits and relationship with known brain networks is unknown.
Colloby, Sean J., Field, Robert H., O'Brien, John T., Taylor, John-Paul, Wyper, David J.   +4 more
core   +1 more source

Effects of fructose vs glucose on regional cerebral blood flow in brain regions involved with appetite and reward pathways.

Journal of the American Medical Association (JAMA), 2013
IMPORTANCE Increases in fructose consumption have paralleled the increasing prevalence of obesity, and high-fructose diets are thought to promote weight gain and insulin resistance.
K. Page, O. Chan, J. Arora, Renata Belfort-DeAguiar, J. Dzuira, Brian F Roehmholdt, G. Cline, Sarita Naik, R. Sinha, R. Constable, R. Sherwin   +10 more
semanticscholar   +1 more source

Pathological regional blood flow in opiate-dependent patients during withdrawal: A HMPAO-SPECT study [PDF]

, 1998
The aims of the present study were to investigate regional cerebral blood flow (rCBF) in heroin-dependent patients during withdrawal and to assess the relation between these changes and duration of heroin consumption and withdrawal data.
Biersack, H. J., Broich, K., Danos, P., Grunwald, F., Hoflich, G., Kasper, S., Klemm, E., Krappel, C., Möller, Hans-Jürgen, Overbeck, B.   +9 more
core   +1 more source

Imaging Regional Lung Structure and Function in Small Animals Using Synchrotron Radiation Phase-Contrast and K-Edge Subtraction Computed Tomography

Frontiers in Physiology, 2022
Synchrotron radiation offers unique properties of coherence, utilized in phase-contrast imaging, and high flux as well as a wide energy spectrum which allow the selection of very narrow energy bands of radiation, used in K-edge subtraction imaging (KES ...
Sam Bayat, Sam Bayat, Luca Fardin, José Luis Cercos-Pita, Gaetano Perchiazzi, Alberto Bravin   +5 more
doaj   +1 more source

Photobiomodulation 30 min or 6 h Prior to Cycling Does Not Alter Resting Blood Flow Velocity, Exercise-Induced Physiological Responses or Time to Exhaustion in Healthy Men

Frontiers in Physiology, 2021
PurposeThe aim of the current study was to investigate the effects of photobiomodulation therapy (PBMT) applied 30 min or 6 h prior to cycling on blood flow velocity and plasma nitrite concentrations at rest, time to exhaustion, cardiorespiratory ...
Yago Medeiros Dutra, Gabriel Machado Claus, Elvis de Souza Malta, Daniela Moraes de Franco Seda, Anderson Saranz Zago, Eduardo Zapaterra Campos, Cleber Ferraresi, Alessandro Moura Zagatto, Alessandro Moura Zagatto   +8 more
doaj   +1 more source

Quantification of renal blood flow with contrast-enhanced ultrasound [PDF]

, 2001
OBJECTIVESThe goal of this study was to determine the ability of contrast-enhanced ultrasound (CEU) to quantify renal tissue perfusion.BACKGROUNDThe kinetics of tracers used to assess renal perfusion are often complicated by countercurrent exchange ...
Bin, Jian-Ping, Coggins, Matthew, Kaul, Sanjiv, Le, Elizabeth, Thorpe, Jerrel, Wei, Kevin   +5 more
core   +1 more source

Pulsatile Ocular Blood Flow Analysis in Cases with Primary Open-angle Glaucoma, Ocular Hypertension and Normotensive Glaucoma

Türk Oftalmoloji Dergisi, 2012
Pur po se: To investigate the pulsatile ocular blood flow (POBF) levels in cases with primary open-angle glaucoma (POAG), ocular hypertension (OHT) and normotensive glaucoma (NTG).
Adem Türk, Murat Günay, Halil İbrahim İmamoğlu, Nurettin Akyol, Hidayet Erdöl   +4 more
doaj   +1 more source

747-6 Myocardial Blood Flow in Aortic Regurgitation: Comparison of Global and Regional Blood Flow to Regional Wall Stresses [PDF]

, 1995
The impact of regional wall stress (WS) abnormalities on regional coronary flow (CBF) in aortic regurgitation (AR) is not known. However, the existence of such a relation is of potential importance since it might account in part for LV dysfunction and ...
Borer, Jeffrey S., Goldfine, Steven M., Herrold, Edmund M., Magid, Norman M.   +3 more
core   +1 more source

Reduced Sympathetic Innervation Underlies Adjacent Noninfarcted Region Dysfunction During Left Ventricular Remodeling [PDF]

, 1997
Objectives. We examined the association of sympathetic denervation and reduced blood flow with mechanical dysfunction in adjacent noninfarcted regions late after myocardial infarction (MI).Background.
Kramer, Christopher M, Nicol, Philip D, Reichek, Nathaniel, Rogers, Walter J, Shaffer, Amy, Suzuki, Mark M, Theobald, Therese M   +6 more
core   +1 more source