Results 131 to 140 of about 744,200 (343)

Isovolumic relaxation strain imaging is an accurate and sensitive approach for detection of active diastolic dysfunction: A preclinical study

Animal Models and Experimental Medicine, EarlyView.
A modified approach was developed to accurately identify the isovolumetric relaxation time (IVRT) using an apical three‐chamber view. Compared with conventional echocardiography, isovolumic relaxation strain imaging (IVSI) helps to detect the earlier alternations of diastolic function in transverse aortic constriction (TAC) mice.
Jingjing Liang, Juncheng Wang, Jun Cheng, Yanggan Wang   +3 more
wiley   +1 more source

MECHANISMS OF DISEASE Acute Oxygen-Sensing Mechanisms [PDF]

, 2005
JOSEPH PRIESTLEY, ONE OF THE THREE SCIENTISTS CREDITED WITH THE discovery of oxygen, described the death of mice that were deprived of oxygen. However, he was also well aware of the toxicity of too much oxygen, stating, “For as a candle burns much faster
Buckler, Keith J., E. Kenneth Weir, M.D., López Barneo, José, Stephen L. Archer, M.D   +3 more
core  

Adjusting for bias introduced by instrumental variable estimation in the Cox Proportional Hazards Model

, 2017
Instrumental variable (IV) methods are widely used for estimating average treatment effects in the presence of unmeasured confounders. However, the capability of existing IV procedures, and most notably the two-stage residual inclusion (2SRI) procedure ...
Goodney, Philip P., MacKenzie, Todd A., Martinez-Camblor, Pablo, O'Malley, A. James, Staiger, Douglas O.   +4 more
core   +1 more source

Molecular mechanism of ischemic postconditioning in promoting diabetic ischemic brain injury repair via the microRNA‐34a–BDNF–SIX3 signaling axis

Animal Models and Experimental Medicine, EarlyView.
Diabetes combined with ischemic stroke (DMIS) exacerbates brain infarct size and neuronal damage compared to nondiabetic ischemic stroke (IS). This study reveals that microRNA‐34a (miR‐34a) plays a key role in DMIS pathogenesis: miR‐34a directly targets and suppresses brain‐derived neurotrophic factor (BDNF) and Sine oculis homeobox 3 (SIX3), promoting
Ling Zhao, Chunlan Zou, Junxian Li, Yang Yang, Yuanyuan Han, Tingyu Ke   +5 more
wiley   +1 more source

How to Undertake a Clinically Relevant Systematic Review in a Rapidly Evolving Field: Magnetic Resonance Angiography [PDF]

, 2002
Objectives: The aim was to determine which generations of the evolving technology of magnetic resonance angiography (MRA) are currently of clinical relevance in two clinical applications. Our purpose was to plan a systematic review that would be valuable
Airey, C.M., Bamford, J.M., Berry, E., Cullingworth, J., Davies, L.M., Gough, M.J., Kelly, S., Meaney, J.F.M., Smith, M.A., Westwood, M.E.   +9 more
core  

Wireless blood pressure sensor implantation in sheep: A detailed technique

Animal Models and Experimental Medicine, EarlyView.
Twelve adult sheep underwent wireless blood pressure sensor implantation. The procedure lasted an average of 36 min, with mean systolic and diastolic blood pressures of 93 ± 6 and 65 ± 5 mmHg, respectively. This rapid, minimally invasive protocol is a powerful platform for cardiovascular device development.
David Santer, Paul Ecker, Judith Radloff, Katharina Heissl, Smruti Mirchandani, Sabine Leitner, Bruno Mora, Martin Czerny, Roman Gottardi, Michael Moore, Bruno K. Podesser   +10 more
wiley   +1 more source

Aneurysm Wall Enhancement and Probability of Instability in Unruptured Intracranial Aneurysms: A Long‐Term Follow‐Up Study

Annals of Neurology, EarlyView.
Objective Aneurysm wall enhancement (AWE) may predict aneurysm growth and rupture in the short‐term, but there is a lack of long‐term follow‐up studies. We aimed to determine whether unruptured intracranial aneurysms (UIAs) with AWE have a higher probability of aneurysm instability during long‐term follow‐up compared with those without AWE. Methods For
Laura T. van der Kamp, Maarten J. Kamphuis, Olivier Naggara, Thomas Le Tat, Gabriel J. E. Rinkel, Gérard A. P. de Kort, Ruben P. A. van Eijk, Jeroen Hendrikse, Irene C. van der Schaaf, Mervyn D. I. Vergouwen   +9 more
wiley   +1 more source

Clot Composition Profiling in Large Vessel Occlusion Stroke Via Radiomics

Annals of Neurology, EarlyView.
Objective Clot composition may offer insights into the mechanism of ischemic stroke. Radiomics, a noninvasive imaging technique, enables tissue characterization through radiomic features (RFs). We aimed to evaluate clot composition using radiomics on non‐contrast computed tomography (NCCT).
Andres Gudino, Elena Sagues, Carlos Dier, Diego Ojeda, Samantha Saenz‐Hinojosa, Sebastian Sanchez, Ariel Vargas, Linder Wendt, Maria Belen Torres, Emily Garces, Alex Hanson, Navami Shenoy, Connor Aamot, Susan A. Walsh, Anil K. Chauhan, Gowri Anil‐Peethambar, Santiago Ortega‐Gutierrez, Jay Kinariwala, Mohamed Elshikh, Amir Shaban, Enrique C. Leira, Osorio Lopes Abath Neto, Malik Ghannam, Edgar A. Samaniego   +23 more
wiley   +1 more source

The baroreceptor reflex emanating from the carotid sinus and common carotid artery of the sheep : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Physiology at Massey University [PDF]

, 1987
The aim of this project was to improve understanding of the role of the common carotid arterial baroreceptor mechanism in controlling peripheral blood pressure in the sheep.
Ball, Karen T
core  

Description of the skull, braincase, and dentition of Moschognathus whaitsi (Dinocephalia, Tapinocephalia), and its palaeobiological and behavioral implications

The Anatomical Record, EarlyView.
Abstract A subadult Moschognathus whaitsi from the Eastern Cape Province, South Africa, was scanned using synchrotron radiation X‐ray computed tomography (SRXCT). Its subadult state allowed the cranial bones and teeth to be identified and individually reconstructed in 3D.
Tristen Lafferty, Luke A. Norton, Aliénor Duhamel, Julien Benoit   +3 more
wiley   +1 more source