Results 41 to 50 of about 263,898 (315)

Can the ischemic penumbra be identified on noncontrast CT of acute stroke? [PDF]

, 2007
<p><b>Background and Purpose:</b> Early ischemic changes on noncontrast CT in acute stroke include both hypoattenuation and brain swelling, which may have different pathophysiological significance.</p> <p><b>Methods:
Muir, K.W., McCormick, M., Baird, T., Coutts, S.B., Walker, L., Baird-Gunning, J.   +5 more
core   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

Molecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau, Leonor Garcia, Hugo Arnold, Antonija Hanžek, Maialen Arrieta, Laurent R Gauthier, Christine Granotier‐Beckers, François D Boussin, Amaury Herbet, Marie Hautière, Valentin Asei‐Ceschino, Clémentin Jacques, Laura Brard, Thomas Harnois, Valérie Coronas, Bruno Constantin, Aurélien Chatelier, Jean Chemin, Serge Urbach, Martial Seveno, Szimonetta Hideg, Chantal Ripoll, Kasandra Aguilar‐Cázarez, Min Zheng, Guo‐Hao Huang, Sheng‐Qing Lv, Lei Zhang, Philippe Rondard, Laurent Prezeau, Jean‐Philippe Pin, Hugues Duffau, Luc Bauchet, Valérie Rigau, Franck Denat, Charles Truillet, Didier Boquet, Jean‐Philippe Hugnot   +36 more
wiley   +1 more source

Real-time intestinal perfusion assessment for anastomotic site selection using laser speckle contrast imaging: Verification in a porcine model

Surgery Open Science
Introduction: Adequate blood perfusion is widely recognized as a crucial factor for successful healing of an anastomosis and avoid anastomotic leakage.
Danique J.I. Heuvelings, Mahdi Al-Taher, Joost Calon, Manish Chand, Laurents P.S. Stassen, Tim Lubbers, Kevin P. Wevers, Luigi Boni, Nicole D. Bouvy, Wido Heeman   +9 more
doaj   +1 more source

Loss of proton‐sensing TDAG8 increases tumor progression in mouse models of colon cancer

Molecular Oncology, EarlyView.
Loss of the pH‐sensing receptor TDAG8 accelerates colorectal cancer progression in mice. Animals lacking TDAG8 expression had increased tumor growth, DNA damage, and recruitment of tumor‐associated immune cells, including macrophages, neutrophils, and monocytes.
Ermanno Malagola, Yasmine Illi, Anna Bircher, Marijn Wilmink, Rachele F. Malagutti, Solenn Ottié, Cordelia Schuler, Pedro A. Ruiz, Cheryl de Vallière, Klaus Seuwen, Gerhard Rogler, Martin Hausmann   +11 more
wiley   +1 more source

Total-liver-volume perfusion CT using 3-D image fusion to improve detection and characterization of liver metastases

, 2008
The purpose of this study was to evaluate the feasibility of a totalliver- volume perfusion CT (CTP) technique for the detection and characterization of livermetastases.
Cornelis van Kuijk, van Waesberghe, Jan, Meijer, Sybren, Weide, Lineke van der, Sybren Meijer, van Kuijk, C., van den Tol, Petrousjka, Lineke van der Weide, van den Tol, M.P., van der Weide, L., Meijer, S., van der Weide, Lineke, Meijerink, Martijn, Martijn R. Meijerink, Jan Hein T. M. van Waesberghe, Meijerink, M.R., van Waesberghe, J.H.T.M., Kuijk, Cornelis van, Petrousjka van den Tol, Waesberghe, Jan van, Tol, Petrousjka van den   +20 more
core   +1 more source

Renal perfusion in scleroderma patients assessed by microbubble-based contrast-enhanced ultrasound [PDF]

, 2012
OBJECTIVES: Renal damage is common in scleroderma. It can occur acutely or chronically. Renal reserve might already be impaired before it can be detected by laboratory findings.
Himsel, Andrea, Kleinert, Stefan, Roll, Petra, Baumgärtner, Christian, Burkhardt, Harald, Tony, Hans-Peter, Janett, Manfred, Müller, Adelheid, Baumgaertner, Christian, Jenett, Manfred, Fleck, Martin, Feuchtenberger, Martin, Mueller, Adelheid   +12 more
core   +1 more source

Long‐term hippocampal alterations and cognitive impairment in a murine model of surgical sepsis

FEBS Open Bio, EarlyView.
Using a mouse model of surgical sepsis, we tested long‐term memory and analyzed the transcriptome of single cells isolated from the hippocampus. Survivor mice showed worse memory, loss of certain brain cell subpopulations, and abnormal immune cell activity—suggesting that post‐sepsis brain alterations may be linked to cognitive deficits.
Dong Seong Cho, Rebecca Schmitt, Aneesha Dasgupta, Alexandra Ducharme, Jason Doles   +4 more
wiley   +1 more source

Perfusion imaging and coronary anatomy [PDF]

European Heart Journal - Cardiovascular Imaging, 2015
Myocardial perfusion imaging is a functional test that does not provide information about coronary artery anatomy. However, the most common indication for perfusion imaging is to detect coronary artery disease (CAD) and more specifically identify significant stenosis in the large epicardial arteries. Therefore, when reporting the perfusion imaging, the
Saraste Antti Veikko Kalevi, Knuuti Matti Juhani   +1 more
openaire   +4 more sources

Multi-centre reproducibility of diffusion MRI parameters for clinical sequences in the brain. [PDF]

, 2015
The purpose of this work was to assess the reproducibility of diffusion imaging, and in particular the apparent diffusion coefficient (ADC), intra-voxel incoherent motion (IVIM) parameters and diffusion tensor imaging (DTI) parameters, across multiple ...
Raschke, F, Leach, MO, Rossiter, J, Clayden, JD, Miyazaki, K, Morgan, PS, Rodriguez, D, Wilson, M, Saunders, DE, Auer, DP, Peet, Andrew, Barrick, TR, Peet, AC, Davies, NP, Grundy, R, Clark, CA, Clark, Christopher, Hales, PW, Wilson, Martin; id_orcid, Gwilliam, MN, Grech-Sollars, M, Howe, FA, Grech-Sollars, Matthew, Gill, SK, Banks, T   +24 more
core   +1 more source

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

FEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas, Aaron D. Morgan, Ignas Čiurlionis, Christian Böhm, Stefan Jockenhövel, Willi Jahnen‐Dechent, Marc A. M. J. van Zandvoort   +6 more
wiley   +1 more source