Results 81 to 90 of about 18,064 (223)

Aging and aerobic fitness affect the contribution of noradrenergic sympathetic nerves to the rapid cutaneous vasodilator response to local heating [PDF]

, 2011
Sedentary aging results in a diminished rapid cutaneous vasodilator response to local heating. We investigated whether this diminished response was due to altered contributions of noradrenergic sympathetic nerves; assessing 1) the age-related decline and,
Alan D. Ruddock, Angus JA, Garry A. Tew, Gary J. Hodges, James Moss, John M. Saxton, Markos Klonizakis   +6 more
core   +1 more source

Quantifying skin microvascular function responses to distinct forms of heat stress in humans using optical coherence tomography

Experimental Physiology, EarlyView.
Abstract Optical coherence tomography (OCT) enables visualization and quantification of the cutaneous microvasculature, yet no study has compared responses to distinct forms of heating in humans. We hypothesized that local skin heating (LH) would evoke larger responses in microvascular diameter, velocity, flow and density than passive whole‐body ...
Kristanti W. Wigati, Robert A. McLaughlin, Harrison T. Caddy, Howard H. Carter, Louise H. Naylor, Daniel J. Green   +5 more
wiley   +1 more source

Optical Coherence Tomography Angiography Vessel Density in Healthy, Glaucoma Suspect, and Glaucoma Eyes. [PDF]

, 2016
PurposeThe purpose of this study was to compare retinal nerve fiber layer (RNFL) thickness and optical coherence tomography angiography (OCT-A) retinal vasculature measurements in healthy, glaucoma suspect, and glaucoma patients.MethodsTwo hundred sixty ...
Belghith, Akram, Diniz-Filho, Alberto, Fatehee, Naeem, Huang, David, Manalastas, Patricia Isabel, Medeiros, Felipe A, Saunders, Luke J, Suh, Min Hee, Weinreb, Robert N, Yarmohammadi, Adeleh, Yousefi, Siamak, Zangwill, Linda M   +11 more
core  

Induction of chronic migraine phenotypes in a rat model after environmental irritant exposure [PDF]

, 2017
Air pollution is linked to increased emergency department visits for headache and migraine patients frequently cite chemicals or odors as headache triggers, but the association between air pollutants and headache is not well understood.
Hurley, Joyce Harts, Johnson, Philip Lee, Kunkler, Phillip Edward, Oxford, Gerry Stephen, Zhang, LuJuan   +4 more
core   +1 more source

Pressure‐dependent coupling between arterial pressure and intercostal muscle blood‐flow index during acute hypotension in humans

Experimental Physiology, EarlyView.
Abstract Regulation of respiratory muscle blood flow during acute systemic hypotension remains poorly understood in humans because continuous assessment of microvascular perfusion during rapid haemodynamic transients has been technically challenging. Using diffuse correlation spectroscopy, we investigated second‐by‐second coupling between mean arterial
Masashi Ichinose, Mikie Nakabayashi, Yumie Ono   +2 more
wiley   +1 more source

LASER DOPPLER FLOWMETER WITH DIFFERENTIAL ANALYSIS OF THE RHYTHMIC COMPONENT OF MICROVASCULAR HEMODINAMIC

Доклады Белорусского государственного университета информатики и радиоэлектроники, 2019
The results of the development and research of laser Doppler flowmetry for the diagnosis of microvascular hemodynamics with a differential analysis of the rhythmic component are presented.
V. I. Ivanov, N. I. Ivanov, A. N. Lazarchik   +2 more
doaj  

寒冷負荷の末梢循環に及ぼす影響 [PDF]

, 2001
The purpose of this study is the effect of partial cold-loading on whole body peripheral circulation. The body surface peripheral circulation in 24 cases (25 years old to 86 years old, the average was 64.3 years) who were suffering coldness, numbness or ...
Ashida, Kozo, Hosaki, Yasuhiro, Mifune, Takashi, Mitsunobu, Fumihiro, Ochi, Koji, Okamoto, Makoto, Takata, Shingo, Tanizaki, Yoshiro, Tsugeno, Hirofumi, Tsuji, Takao, Yokoi, Tadashi   +10 more
core   +1 more source

Laser Doppler flowmetry in the optic nerve

Experimental Eye Research, 1992
Laser Doppler flowmetry (LDF) is a technique that measures relative average velocity, number and flux (number times velocity) of red blood cells in a tissue. In this paper, we demonstrate its application in the optic nerve head tissue, describe the laser delivery and light scattering detection schemes and investigate the effect of the distance between ...
C E, Riva, S, Harino, B L, Petrig, R D, Shonat   +3 more
openaire   +2 more sources

Real‐Time and High‐Resolution NIR‐II‐L Imaging of Netrin‐1‐Mediated Neurovascular Coupling Driven by Dose‐Dependent Electroacupuncture

Advanced Science, Volume 13, Issue 19, 2 April 2026.
Disrupted neurovascular coupling contributes to ovarian dysfunction in polycystic ovary syndrome. Using near‑infrared II long‑wavelength imaging, this study visualizes how electroacupuncture dynamically regulates ovarian blood vessels in vivo. Immediate and cumulative stimulation elicit distinct vascular responses via a Netrin‐1 dependent mechanism ...
Yicong Wang, Zi‐Han Chen, Jiajia Li, Wei Hu, Ying Cao, Yu Wang, Xiaoyu Tong, Wenhan Lu, Yuze Yang, Yuehao Wang, Yan Xiao, Wenhao Gao, Yuning Chen, Yuyan Hou, Fan Zhang, Yi Feng   +15 more
wiley   +1 more source

Transient hypercapnia reveals an underlying cerebrovascular pathology in a murine model for HIV-1 associated neuroinflammation: role of NO-cGMP signaling and normalization by inhibition of cyclic nucleotide phosphodiesterase-5 [PDF]

, 2012
Cerebral blood flow (CBF) is known to be dysregulated in persons with human immunodeficiency virus 1 (HIV-1), for uncertain reasons. This is an important issue because impaired vasoreactivity has been associated with increased risk of ischemic stroke ...
Dewhurst, Stephen, Feng, Changyong, Granger, Megan, Kasischke, Karl A, Knight, Walter, Lopez, Tenée, Ontiveros, Fernando, Polesskaya, Oksana, Silva, Jharon, Ting Zheng, Johnny, Yan, Chen   +10 more
core   +2 more sources