Results 41 to 50 of about 319,669 (345)

Abnormal Cerebrovascular Reactivity in Patients with Parkinson’s Disease

Parkinson's Disease, 2015
Background. Orthostatic hypotension (OH) is an important nonmotor manifestation of Parkinson’s disease (PD). Changes in cerebrovascular reactivity may contribute to this manifestation and can be monitored using transcranial Doppler. Objective.
Carlos Henrique Ferreira Camargo, Eduardo Antunes Martins, Marcos Christiano Lange, Henrique Alvaro Hoffmann, Jissa Jeanete Luciano, Marcelo Rezende Young Blood, Marcelo Derbli Schafranski, Marcelo Machado Ferro, Edmar Miyoshi   +8 more
doaj   +1 more source

The Effects of Involuntary Respiratory Contractions on Cerebral Blood Flow during Maximal Apnoea in Trained Divers. [PDF]

PLoS ONE, 2013
The effects of involuntary respiratory contractions on the cerebral blood flow response to maximal apnoea is presently unclear. We hypothesised that while respiratory contractions may augment left ventricular stroke volume, cardiac output and ultimately ...
Troy J Cross, Justin J Kavanagh, Toni Breskovic, Petra Zubin Maslov, Mihajlo Lojpur, Bruce D Johnson, Zeljko Dujic   +6 more
doaj   +1 more source

Evaluation of arterial digital blood flow using Doppler ultrasonography in healthy dairy cows

BMC Veterinary Research, 2017
Background Local circulatory disturbances have been implicated in the development of foot disorders in cattle. The goals of this study were to evaluate the suitability of the interdigital artery in the pastern region in both hind limbs using pulsed-wave (
H. Müller, M. Heinrich, N. Mielenz, S. Reese, A. Steiner, A. Starke   +5 more
doaj   +1 more source

Preoperative Femoral Vein Velocity in Maximal Flexion Is a Predictor of Deep Vein Thrombosis in Patients Undergoing Total Hip Arthroplasty

Acta Clinica Croatica, 2020
The aim of the study was to investigate if preoperative blood flow velocity in femoral vein in different positions of the hip during total hip arthroplasty (THA) is a predictor of postoperative deep vein thrombosis (DVT).
Amel Hadžimehmedagić, Bekir Rovčanin, Haris Vranić, Muhamed Djedović, Slavenka Štraus, Tarik Selimović   +5 more
doaj   +1 more source

Comparison of reduced models for blood flow using Runge-Kutta discontinuous Galerkin methods

, 2016
One-dimensional blood flow models take the general form of nonlinear hyperbolic systems but differ greatly in their formulation. One class of models considers the physically conserved quantities of mass and momentum, while another class describes mass ...
Canic, Suncica, Puelz, Charles, Riviere, Beatrice, Rusin, Craig G.   +3 more
core   +1 more source

Quantification of leptomeningeal collateral blood flow in hypertensive rats during ischemic stroke

Journal of Stroke and Cerebrovascular Diseases
Objectives: There is increasing evidence that poor leptomeningeal collateral blood flow in hypertensive animals is due to increased vascular myogenic tone, indicating that therapies to enhance collateral blood flow during ischemic stroke may be ...
Magdalena Litman, MPharm, Kristy Martin, BSc (Hons), Neil J Spratt, FRACP, PhD, Daniel J Beard, PhD   +3 more
doaj   +1 more source

Characterizing the salivary RNA landscape to identify potential diagnostic, prognostic, and follow‐up biomarkers for breast cancer

Molecular Oncology, EarlyView.
This study explores salivary RNA for breast cancer (BC) diagnosis, prognosis, and follow‐up. High‐throughput RNA sequencing identified distinct salivary RNA signatures, including novel transcripts, that differentiate BC from healthy controls, characterize histological and molecular subtypes, and indicate lymph node involvement.
Nicholas Rajan, Irina Primac, Emre Etlioglu, Laurens Debruyne, Ann Janssen, Magy Sallam, Kevin Tabury, Roel Quintens, Wiebren Tjalma, Mohammed Abderrafi Benotmane   +9 more
wiley   +1 more source

Reference ranges of fetal superior vena cava blood flow velocities and pulsatility index in the second half of pregnancy: a longitudinal study

BMC Pregnancy and Childbirth, 2021
Background Fetal superior vena cava (SVC) is essentially the single vessel returning blood from the upper body to the heart. With approximately 80-85% of SVC blood flow representing cerebral venous return, its interrogation may provide clinically ...
Maria Stefopoulou, Lotta Herling, Jonas Johnson, Peter Lindgren, Torvid Kiserud, Ganesh Acharya   +5 more
doaj   +1 more source

Bridging the gap: Multi‐stakeholder perspectives of molecular diagnostics in oncology

Molecular Oncology, EarlyView.
Although molecular diagnostics is transforming cancer care, implementing novel technologies remains challenging. This study identifies unmet needs and technology requirements through a two‐step stakeholder involvement. Liquid biopsies for monitoring applications and predictive biomarker testing emerge as key unmet needs. Technology requirements vary by
Jorine Arnouts, Senada Koljenović, Elise Daems, Karolien De Wael, Marc Peeters, Léon C. van Kempen, Greetje Vanhoutte, Karen Zwaenepoel, Timon Vandamme   +8 more
wiley   +1 more source

Numerical-experimental observation of shape bistability of red blood cells flowing in a microchannel [PDF]

, 2017
Red blood cells flowing through capillaries assume a wide variety of different shapes owing to their high deformability. Predicting the realized shapes is a complex field as they are determined by the intricate interplay between the flow conditions and ...
Gekle, Stephan, Guckenberger, Achim, John, Thomas, Kihm, Alexander, Wagner, Christian   +4 more
core   +2 more sources