Results 71 to 80 of about 18,064 (223)

WHAT IS THE BEST METHOD TO EVALUATE RETINAL MICROCIRCULATION?

Artery Research, 2015
The microvasculature of retinal ganglion cell layer, which is the part of central nervous system, can be investigated non-invasively in human. For clinical routine the fluorescence angiography is used to test patency and leak of retinal or choroid ...
Joanna Harazny
doaj   +1 more source

Time-of-flight resolved light field fluctuations reveal deep human tissue physiology. [PDF]

, 2020
Red blood cells (RBCs) transport oxygen to tissues and remove carbon dioxide. Diffuse optical flowmetry (DOF) assesses deep tissue RBC dynamics by measuring coherent fluctuations of multiply scattered near-infrared light intensity.
Du Le, VN, Kholiqov, Oybek, Srinivasan, Vivek J, Zhang, Tingwei, Zhou, Wenjun   +4 more
core  

Sex differences in cerebral blood flow and cardiac function in response to exercise in the heat

Experimental Physiology, EarlyView.
Abstract We investigated the effect of exercising in hot conditions on cerebral blood flow and systolic left ventricular (LV) function in males and females, to explore sex differences. The experimental condition consisted of walking on a treadmill at 5 km/h and 2% incline, inside a heat chamber at 40°C (50% relative humidity), for 90 min.
João Carlos Locatelli, Juliene G. Costa, Kristanti W. Wigati, Jesse L. Criddle, Julie J. Collis, Xingwei Xu, Louise H. Naylor, Howard H. Carter, Shane K. Maloney, Robert A. McLaughlin, Andrew Haynes, Helen Jones, Keith George, Daniel J. Green   +13 more
wiley   +1 more source

Monitoring kidney optical properties during cold storage preservation with spatial frequency domain imaging. [PDF]

, 2019
Transplantation of kidneys results in delayed graft function in as many as 40% of cases. During the organ transplantation process, donor kidneys undergo a period of cold ischemic time (CIT), where the organ is preserved with a cold storage solution to ...
Durkin, Anthony, Ichii, Hirohito, Jarrin Lopez, Alberto, Li, Shiri, Li, Xiaodong, Ponticorvo, Adrien, Rowland, Rebecca   +6 more
core  

Red cell trapping and postischemic renal blood flow. Differences between the cortex, outer and inner medulla [PDF]

, 1991
Red cell trapping and postischemic renal blood flow. Differences between the cortex, outer and inner medulla. The distribution of blood flow in the rat kidney after 60 minutes of renal ischemia was studied by single-fiber laser-Doppler flowmetry.
Berjano, M., Gallegos, C., Guerrero, A., Sánchez, M. C.   +3 more
core   +3 more sources

Sex differences in the prefrontal cortex and muscle oxygenation during exercise until exhaustion in endurance‐trained individuals

Experimental Physiology, EarlyView.
Abstract figure legend During cardiopulmonary exercise testing, the decline in oxygenation in the prefrontal cortex of women is striking. This crucial brain area is directly involved in planning motor tasks. The decline is particularly pronounced at higher exercise intensities, especially after reaching the respiratory compensation point or anaerobic ...
Daniel Ramos‐López, Raúl Caulier‐Cisterna, Benjamín Díaz‐Ortiz, Cristóbal Baumann‐Biancani, Kamilo Hunger‐Abbott, Matías Herrera‐Matas, Andrés Vega‐Moraga, Vitor A. Lira, Maximiliano Espinosa‐Ramírez, Karol Ramírez‐Parada, Luigi Gabrielli‐Nervi, Hugo E. Verdejo, Felipe Contreras‐Briceño   +12 more
wiley   +1 more source

Diagnostics of Microcirculatory Disorders in Children with Infectious Pathology

Проблемы особо опасных инфекций, 2012
Laser Doppler flowmetry method (LDF) was used to examine children (43 patients with enteroviral infection, 34 patients with Astrakhan rickettsial fever, and 40 healthy controls).
O. V. Grachieva, G. A. Kharchenko, D. N. Rasskazov, R. A. Sadretdinov   +3 more
doaj   +1 more source

Investigation of photoplethysmography, laser doppler flowmetry and near infrared spectroscopy during induced thermal stress [PDF]

, 2015
Continuous assessment of blood flow, blood volume, and blood and tissue oxygenation are of vital importance in critically ill patients. Photoplethysmography (PPG), Pulse Oximetry (PO), Laser Doppler Flowmetry (LDF) and Near Infrared Spectroscopy (NIRS ...
Abay, T., Budidha, K., Kyriacou, P. A.
core   +1 more source

Laser Doppler Flowmetry in Manual Medicine Research

Journal of Osteopathic Medicine, 2014
Abstract Laser Doppler flowmetry (LDF) is commonly used in combination with reactivity tests to noninvasively evaluate skin sympathetic nerve activity and skin microvascular function. In manual medicine research, LDF has been used as a marker for global peripheral sympathetic nervous system function, but these results ...
Rafael, Zegarra-Parodi, Eric J, Snider, Peter Yong Soo, Park, Brian F, Degenhardt   +3 more
openaire   +2 more sources

Quantifying microvascular responses to local heating using optical coherence tomography: Comparison between skin sites and sex differences

Experimental Physiology, EarlyView.
Summary of the study design, metholodgy, results and conclusions. Abstract Due to a lack of technical capacity to directly visualise and quantify microvessels in the skin, little is known regarding regional and/or sex differences. We compared diameter, velocity, flow and density at four regional sites using a novel optical coherence tomography (OCT ...
Juliene G. Costa, Kristanti W. Wigati, Louise H. Naylor, Helen Jones, Robert A. McLaughlin, Daniel J. Green   +5 more
wiley   +1 more source