Results 31 to 40 of about 18,237 (226)

Dynamic X-ray speckle-tracking imaging with high-accuracy phase retrieval based on deep learning

IUCrJ
Speckle-tracking X-ray imaging is an attractive candidate for dynamic X-ray imaging owing to its flexible setup and simultaneous yields of phase, transmission and scattering images.
Fucheng Yu, Kang Du, Xiaolu Ju, Feixiang Wang, Ke Li, Can Chen, Guohao Du, Biao Deng, Honglan Xie, Tiqiao Xiao   +9 more
doaj   +1 more source

3D-speckle-tracking echocardiography correlates with cardiovascular magnetic resonance imaging diagnosis of acute myocarditis – An observational study

International Journal of Cardiology: Heart & Vasculature, 2022
Background: The diagnostic importance of three-dimensional (3D) speckle-tracking strain-imaging echocardiography in patients with acute myocarditis remains unclear.
Philip Roger Goody, Sebastian Zimmer, Can Öztürk, Angela Zimmer, Jens Kreuz, Marc Ulrich Becher, Alexander Isaak, Julian Luetkens, Atsushi Sugiura, Felix Jansen, Georg Nickenig, Christoph Hammerstingl, Vedat Tiyerili   +12 more
doaj   +1 more source

Role of Dobutamine Stress Test and Speckle Tracking in Ischemic Heart Disease, Comparative Study

Medical Journal of Babylon
Background:Coronary artery disease (CAD) is a major cause of cardiovascular mortality. Echocardiography plays a vital role in early detection and treatment. Objectives:We investigated the use of speckle tracking during dobutamine stress echocardiography (
Marwa Majeed Kadhim, Shokry F. AL-Saad, Hassan Salim Al-Jumaily, Zainab Falah Hassan   +3 more
doaj   +1 more source

Strain dyssynchrony index determined by three-dimensional speckle area tracking can predict response to cardiac resynchronization therapy

Cardiovascular Ultrasound, 2011
Background We have previously reported strain dyssynchrony index assessed by two-dimensional speckle tracking strain, and a marker of both dyssynchrony and residual myocardial contractility, can predict response to cardiac resynchronization therapy (CRT).
Onishi Tetsuari, Matsumoto Kensuke, Norisada Kazuko, Fukuda Yuko, Omar Alaa MS, Yamawaki Kohei, Ryo Keiko, Kaneko Akihiro, Tsuji Takayuki, Tanaka Hidekazu, Tatsumi Kazuhiro, Yoshida Akihiro, Kawai Hiroya, Hirata Ken-ichi   +13 more
doaj   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

The role of Speckle Tracking Echocardiography and Threedimensional Echocardiography in the Assessment of Left Ventricular Systolic Function in Type II Patients with diabetes with Negative Myocardial Perfusion Imaging in Correlation to Multi-gated Acquisition Scan

International Journal of the Cardiovascular Academy, 2023
Background and Aim:Two-dimensional (2D) speckle tracking echocardiography (STE) has shown promising results being a recent technology to assess “myocardial performance” in cardiac patients.
Taghreed Ahmed, Mona Naiem, Taher Said, Mohamed Zahran   +3 more
doaj   +1 more source

Class IIa HDACs forced degradation allows resensitization of oxaliplatin‐resistant FBXW7‐mutated colorectal cancer

Molecular Oncology, EarlyView.
HDAC4 is degraded by the E3 ligase FBXW7. In colorectal cancer, FBXW7 mutations prevent HDAC4 degradation, leading to oxaliplatin resistance. Forced degradation of HDAC4 using a PROTAC compound restores drug sensitivity by resetting the super‐enhancer landscape, reprogramming the epigenetic state of FBXW7‐mutated cells to resemble oxaliplatin ...
Vanessa Tolotto, Nicolò Gualandi, Ylenia Cortolezzis, Raffaella Picco, Monica Colitti, Francesca D'Este, Mariachiara Gani, Wayne W. Hancock, Giovanni Terrosu, Cristina Degrassi, Francesca Agostini, Claudio Brancolini, Luigi E. Xodo, Eros Di Giorgio   +13 more
wiley   +1 more source

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

Molecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung, David Bickel, Lena C. M. Krause, Daria Ezeriņa, Christian Ickes, Julian Wojtachnia, Christine S. Gibhardt, Magdalena Shumanska, Khadija Wahni, Andrea Paluschkiwitz, Julia Malo Pueyo, Ekaterina Baranova, Wim Vranken, Hedwig Stanisz, Ioana Stejerean‐Todoran, Michael P. Schön, Joris Messens, Ivan Bogeski   +17 more
wiley   +1 more source

Clinical Practice Guideline for Evaluation and Management of Peripheral Nervous System Manifestations in Sjögren's Disease

Arthritis Care &Research, Accepted Article.
Objectives Sjögren's disease is an autoimmune disorder that can impact multiple organ systems, including the peripheral nervous system (PNS). PNS manifestations, which can exist concurrently, include mononeuropathies, polyneuropathies, and autonomic nervous system neuropathies. To help patients and providers in the decision‐making process, we developed
Anahita Deboo, Robert Fox, Katherine M. Hammitt, Julie Frantsve‐Hawley, Matthew C. Baker, Stamatina Danielides, Eduardo De Sousa, Brent P. Goodman, Jennifer K. King, Steven Mandel, Ghaith Noaiseh, Pantelis P. Pavlakis, George Sarka, R. Hal Scofield, Arun Varadhachary, Daniel J. Wallace, Matt Makara, Nancy Carteron, Steven Carsons, In collaboration with the Consensus Expert Panel (CEP) members   +19 more
wiley   +1 more source

A Spatial Resolution-Based Evaluation Method for Subpixel Registration Algorithms

Optics
Digital image correlation (DIC) technology is widely employed in speckle-based measurement techniques, including X-ray speckle tracking. By enhancing DIC’s measurement capability to the subpixel scale through subpixel registration technology, the ...
Fan Li, Junliang Yang, Hui Zhang, Pingquan Wang   +3 more
doaj   +1 more source