Navigation Links

Tag: "photoreceptor" at biology news

'Lucky 13' as new gene discovery offers further hope for childhood blindness

...ina. Protein transport is essential within retinal photoreceptor cells as they are long, thin cells with a highly evolved structure on one end (the outer segment) which detects light and sends signals to the brain, a function requiring a large amount of energy. "LCA is usually a disease where protein function h...

Making mice with enhanced color vision

...he first ancestral primate inherited a new type of photoreceptor more than 40 million years ago, it probably experi...ce could discriminate among the lights. "Each photoreceptor absorbs a range of wavelengths, but the efficiency changes with wavelength," Nathans explains. "For ...

Transplanted photoreceptor precursor cells restore visual function in mice with retinal degeneration

... The team of scientists found that transplanted photoreceptor precursor cells survived and became integrated int...cus on characterizing the mechanisms that generate photoreceptor precursors from stem cells. Swaroop believes the research has potential for developing therapies fo...

Does missing gene point to nocturnal existence for early mammals?

...iversity of Manchester. "But, recently, a third photoreceptor was discovered that is activated by a gene called melanopsin. This melanopsin photoreceptor is not linked to sight but uses light for non-visual processes, such as regulating our day-night rhy...

Light-sensitive photoswitches could restore sight to those with macular degeneration

...to light in the eyes of people who have lost their photoreceptor cells, in particular, the rods and cones in the most sensitive part of the retina," Isacoff said. "We plan to develop the tools to create a new layer of optically active cells for the retina." Loss of photoreceptors - the light detectors in the ret...

UF scientists restore sight to chickens with blinding disease

...indness. "We were able to restore function to the photoreceptor cells in the retinas of an avian model of a diseas...ion and function best in daylight. The predominant photoreceptor cell type in the chicken retina, the cone cell, is the same cell type that is essential for normal h...

New fruit fly protein illuminates circadian response to light

...g flies. When a fruit fly is exposed to light, a photoreceptor called cryptochrome (CRY) transduces the light signal and kicks off a series of reactions within the clock cells of the brain. Under normal conditions, CRY will respond to light by binding to a protein called timeless (TIM). A second protein, a membe...

'Prosthetic' retinal cells let blind mice see light

...o "inner retinal neurons" in a strain of mice with photoreceptor deficiency that resembles the defect in such inher...e remodeling of inner retinal neurons triggered by photoreceptor degeneration has raised some concerns for the retinal-based rescue strategy after the death of photo...

Lizard 'third eye' sheds light on evolution of color vision

...researchers propose that the lizard's parietal eye photoreceptor cells represent a "missing link" between the light...hese structures to obtain more clues about how our photoreceptor cells, the rods and cones, came about. As he says, he's most curious about how the same function can...

Behavioral studies show UV contributes to marsupial color vision

...lor vision based on three different types of color photoreceptor cones--but unlike primates, a component of marsupial color vision includes sensitivity to ultraviolet wavelengths. In the study, researchers employed behavioral tests to show that at least one type of marsupial uses its detection of UV light as par...

UC Berkeley researchers create a biologically-inspired artificial compound eye

...'s eye. While an insect's ommatidia each end in a photoreceptor cell that transmits a light signal to the creature's optic nerve, Lee plans to couple his team's ommatidia with CCD photodiodes, the light-capturing units used in digital cameras and camcorders. He also has plans to link them to spectroscopes for che...

Scientists map one of biology's critical light-sensing structures

...y to understanding the "nuts and bolts" of how the photoreceptor senses light and triggers a series of downstream events that control growth and development, according to Katrina Forest, the other senior member of the team and a UW-Madison professor of bacteriology. "There were some surprises," says Forest of the ...

Gene therapy works in mice to prevent blindness that strikes boys

..., but the treated eyes appeared healthy. The eye's photoreceptor cells - the rods and cones that help the brain process light and color - were spared from the disease and the connections between the layers of the retinas were intact. In addition, the protein appears capable of moving within the retina to its targ...

Migratory songbirds have a specialized night-vision brain area

...visually detect the earth's magnetic field through photoreceptor molecules, whose light-sensitivity is modulated by the field. The researchers published their findings May 23, 2005, in the early online edition of the Proceedings of the National Academy of Sciences. The collaboration was led by Henrik Mouritsen of...

Glow-in-the-dark zebrafish at UH hold keys to biological clocks

...al mechanisms of vertebrate circadian rhythmicity, photoreceptor cell and molecular biology, and neurobiology. He is a member of the Society for Research on Biological Rhythms and the Society for Neuroscience and is currently funded under a $1.2 million National Institutes of Health grant through 2007 as the princ...

Ophthalmologists implant five patients with artificial silicon retina microchip

...into electrical signals within the retina. Loss of photoreceptor cells occurs in persons with retinitis pigmentosa ...tina seems a logical step in replacing the loss of photoreceptor cells of the retina. If the implant is tolerated well and is able to successfully stimulate the reti...

Ophthalmologists Use Artificial Silicon Retina Microchip To Treat Vision Loss

...into electrical signals within the retina. Loss of photoreceptor cells occurs in persons with retinitis pigmentosa ...tina seems a logical step in replacing the loss of photoreceptor cells of the retina. If the implant is tolerated well and is able to successfully stimulate the reti...

Emory Eye Center Implants Its First Retinal Chips In Patients With Retinitis Pigmentosa

...a number of diseases that predominantly affect the photoreceptor layer or "light sensing" cells of the retina. Night blindness develops, usually in childhood, followed by loss of peripheral visual field, progressing over many years to tunnel vision and finally blindness. At Emory Eye Center retina specialists Tho...

1

Other Tags
(Date:8/28/2014)... Society of America (ESA) is pleased to announce the ... of the Society. Honorary Membership acknowledges those who have ... involvement in the affairs of the Society that has ... selected by the ESA Governing Board and then voted ... honored at the Awards Ceremony at Entomology 2014, ESA,s ...
(Date:8/28/2014)... available in German . ... its name to a striking pattern of blue stripes alternating ... reflective silvery cells, and yellow cells emerge during growth in ... a multilayered mosaic to compose the characteristic colour pattern. ... have to interact to form proper stripes, the embryonic origin ...
(Date:8/28/2014)... Mayo Clinic researcher and his collaborators have developed an ... the process of re-engineering cells for biomedical investigation. CellNet ... methods to aid stem cell engineering. Details of CellNet ... in two back-to-back papers in the journal Cell ... of uses for all types of cell-based investigations and ...
Breaking Biology News(10 mins):Fred Baxendale selected as Honorary Member of the Entomological Society of America 2How the zebrafish gets its stripes 2How the zebrafish gets its stripes 3New tool aids stem cell engineering for medical research 2
(Date:8/28/2014)... MI (PRWEB) August 28, 2014 Biotronic, ... nation’s leading intraoperative neurophysiology monitoring ("IONM") company, today announced ... the position of Chief Executive Officer effective immediately. Mr. ... to President and CFO in 2013 and has been ... , “Bill’s efforts and achievements since joining the ...
(Date:8/28/2014)... Valero Renewable Fuels Company, LLC, a wholly ... the Ports of Indiana hosted Lt. Gov. Sue Ellspermann ... Port Appreciation and Welcome Celebration commemorating the restart of ... opening of Valero’s ethanol facility at the Port ... for the State of Indiana,” Ellspermann said. “When the ...
(Date:8/28/2014)... Amy Norton HealthDay Reporter ... that sending electrical currents through the scalp to a specific ... to a day. In a small study of healthy ... up certain networks involved in memory. That, in turn, boosted ... hours after the brain stimulation. During TMS, an electromagnetic ...
(Date:8/28/2014)... IL (PRWEB) August 28, 2014 Data ... Supplement shows that while most hospitals utilize a basic ... health care information technology is still a challenge. ... the August issue of Health Affairs , and ... Forum’s Health Care Data Center, as well as Chantal ...
(Date:8/28/2014)... change is hurting reproduction of the endangered Devils Hole pupfish, ... as few as 35 individuals, new research by the University ... report that geothermal water on a small shelf near the ... the pupfish live is heating up as a result of ... levels. , The hotter water, which now reaches more ...
Breaking Medicine News(10 mins):Health News:Biotronic NeuroNetwork Announces the Promotion of Bill Gecsey to CEO 2Health News:Valero, Ports of Indiana Celebrate Restart of Ethanol Plant 2Health News:Valero, Ports of Indiana Celebrate Restart of Ethanol Plant 3Health News:Electrical Pulses to Scalp May Boost Memory: Study 2Health News:Electrical Pulses to Scalp May Boost Memory: Study 3Health News:AHA Data Shows Progress, Challenges on Road to Healthcare IT Adoption 2Health News:AHA Data Shows Progress, Challenges on Road to Healthcare IT Adoption 3Health News:Climate change puts endangered Devils Hole pupfish at risk of extinction 2Health News:Climate change puts endangered Devils Hole pupfish at risk of extinction 3
Other Contents