Results 91 to 100 of about 3,927,862 (312)

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

open access: yes, 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   +12 more
core   +1 more source

Enhanced microbubble contrast agent oscillation following 250 kHz insonation

open access: yesScientific Reports, 2018
Microbubble contrast agents are widely used in ultrasound imaging and therapy, typically with transmission center frequencies in the MHz range. Currently, an ultrasound center frequency near 250 kHz is proposed for clinical trials in which ultrasound ...
Tali Ilovitsh   +11 more
doaj   +1 more source

Early detection of osteoarthritis in rabbits using MRI with a double-contrast agent

open access: yesBMC Musculoskeletal Disorders, 2018
Background Articular cartilage degeneration has been evaluated by magnetic resonance imaging (MRI). However, this method has several problems, including its time-consuming nature and the requirement of a high magnetic field or specialized hardware.
Okihiro Onishi   +7 more
doaj   +1 more source

RNA‐related functions of BRCA2 in transcription, replication, and genome stability

open access: yesFEBS Letters, EarlyView.
Beyond its role in homologous recombination, BRCA2 regulates R‐loop homeostasis, DNA–RNA hybrid resolution, RNA polymerase II dynamics, and transcriptional activation. Disruption of any of these functions can contribute to genome instability, inflammatory signaling, and tumorigenesis. BRCA2 is a central tumor suppressor protein best known for its roles
Lucia Alvaro‐Aranda   +2 more
wiley   +1 more source

Leucine‐rich glioma inactivated 1 (LGI1) is a ganglioside‐binding protein

open access: yesFEBS Letters, EarlyView.
Neuronal hyperexcitability associated with a decrease/absence of the extracellular protein LGI1 has been suggested to be primarily due to the downregulation of Kv1 channel expression. The molecular mechanisms underlying this decrease have not yet been elucidated.
Kévin Debreux   +7 more
wiley   +1 more source

Providing Social Scaffolding for Effective Agent Communities [PDF]

open access: yes, 2013
AAAI Workshop on Autonomy, Delegation and Control: From Inter-agent to Groups, Edmonton, Canada, 2002This paper explores the general landscape of virtual communities and reflects upon their relevance to their agent community counterparts.
O'Hare, G. M. P. (Greg M. P.)   +1 more
core   +1 more source

The Challenge of T1 Contrast Agents for High-Magnetic Field MRI

open access: yesCHIMIA, 2011
Magnetic resonance imaging (MRI) is one of the most powerful diagnostic techniques used in clinics. The need for higher spatial resolution and better sensitivity led to the development of imagers working at high magnetic fields.
Lothar Helm
doaj   +1 more source

Metastatic niche shaped by host factors influences disseminated cancer cell fate

open access: yesFEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward   +2 more
wiley   +1 more source

Anaesthesia Fluid Detection in 3D Contrast Enhanced Ultrasound Image [PDF]

open access: yes, 2011
Ultrasound medical image has disadvantage on displaying anaesthesia fluid due to its low intensity. Using contrast agent to enhance brightness of fluid area makes it possible to extract fluid area from acquired 3D image. This paper proposes
Alkaff, Dalily
core  

Superparamagnetic Iron Oxide Nanoparticles as Magnetic Resonance Imaging Contrast Agent for Myocardial Infarction

open access: yes, 2016
Citric acid coated superparamagnetic iron oxide nanoparticles (CA-SPIONs) are synthesized by co-precipitation method and citric acid is used to stabilize nanoparticles and provide significantly small nanoparticles.
Zhang, Zhenzhong   +5 more
core   +1 more source

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