A new imaging technique used by a group of researchers at the University of Washington and elsewhere has revealed a previously unknown cellular structure in the retinas of mice. The structure is the site for an important part of the retinoid cycle, a chemical process critical to vision, the scientists said. Results of their study, which took more than three years, appeared in the Feb. 2 issue of the Journal of Cell Biology.
Dubbed a retinosome, the newly discovered organelle houses retinyl esters, which are an intermediate chemical product in the retinoid cycle. That cycle is critical in the regeneration process for 11-cis-retinal, a light-absorbing chemical vital to vision.
Dr. Yoshikazu Imanishi, senior research fellow in the UW Department of Ophthalmology, worked on the project with Dr. Kris Palczewski, Bishop Professor and professor of ophthalmology, chemistry, and pharmacology at the UW; Matthew Batten, a research scientist in Palczewskis lab; and researchers from Vanderbilt University and the University of Utah.
Justin Reedy | EurekAlert!
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University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.
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Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...
Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.
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20.04.2018 | Physics and Astronomy