Results 81 to 90 of about 20,357,287 (303)

A medical tracking system for contrast media

open access: yes, 2010
Contrast media is a kind of chemical substance used to improve the image quality of Computed Tomography. However, due to its high speed of injection, emergencies (such as capillary hemorrhage) always exist.
Wang ZL(王哲龙)   +4 more
core   +1 more source

The time course of adaptation to spatial contrast [PDF]

open access: yes, 1991
We explored the buildup and decay of threshold elevation during and after adaptation to sinewave gratings in a series of experiments investigating the effects of adapting time, adapting contrast, spatial frequency and retinal eccentricity.
Harris, J. P.   +3 more
core   +1 more source

Nutrient/TOR signaling controls adipose mitochondrial transcription factor A (TFAM) to regulate organismal growth in Drosophila

open access: yesFEBS Letters, EarlyView.
Animals must match their growth rate to available nutrients. We show that in Drosophila larvae, the nutrient‐sensing TOR kinase controls growth by regulating levels of TFAM, a key regulator of mitochondrial function, in the adipose tissue. When nutrients are abundant, high TOR activity suppresses TFAM, lowering mitochondrial bioenergetic activity and ...
Shrivani Sriskanthadevan‐Pirahas   +4 more
wiley   +1 more source

Iodinated Contrast-Induced Hypothyroidism in An Infant after Enteral Contrast Enema: A Case-Report and Systematic Review

open access: yesJCRPE
Excessive iodine intake may trigger the Wolff-Chaikoff effect, which results in downregulation of thyroid hormone synthesis to prevent hyperthyroidism. Failure to recover euthyroidism after the Wolff-Chaikoff effect may be seen in infants, and especially
Adinda G. H. Pijpers   +10 more
doaj   +1 more source

Curriculum for the Management of Contrast Media Reactions, Contrast Induced Nephropathy & Nephrogenic Systemic Fibrosis

open access: yesMedEdPORTAL, 2013
Radiologists supervising imaging studies using contrast media should have the necessary knowledge and skills to deal with adverse contrast media reactions and their appropriate management. The aim of this curriculum is to educate practicing radiologists,
Puneet Bhargava   +9 more
doaj   +1 more source

Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics

open access: yesFEBS Letters, EarlyView.
Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt   +8 more
wiley   +1 more source

Binocular summation of contrast remains intact in strabismic amblyopia [PDF]

open access: yes, 2007
PURPOSE. Strabismic amblyopia is typically associated with several visual deficits, including loss of contrast sensitivity in the amblyopic eye and abnormal binocular vision.
Meese, Tim S.   +4 more
core   +1 more source

Liver organoids: modelling complexity in homeostasis and disease

open access: yesFEBS Letters, EarlyView.
Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley   +1 more source

Alignment of contrast enhanced medical images [PDF]

open access: yes, 2009
The re-alignment of series of medical images in which there are multiple contrast variations is difficult. The reason for this is that the popularmeasures of image similarity used to drive the alignment procedure do not separate the influence of ...
Melbourne, A.
core  

The microbiome in human skin aging

open access: yesFEBS Letters, EarlyView.
Age‐related skin changes encompass the well‐known visible phenotypic alterations, together with microbiome dysbiosis and a series of molecular aging hallmarks. These hallmarks characterize not only a fully stablished aged phenotype but also the skin aging process itself.
Manuel Huerta Arana   +3 more
wiley   +1 more source

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