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Tag: "vision" at biology news

Study in Science holds promise for a new approach to drug therapy

... signaling cascades, passing on messages that make vision possible, carry nerve messages, enable white blood cells to attack infection and set the timing of the heartbeat. Faulty GPCR signaling, on the other hand, plays a key role in several major diseases. As a result, GCPRs are targeted by 12 of the top 2...

Behavioral studies show UV contributes to marsupial color vision

...t marsupials, like primates, have functional color vision based on three different types of color photorecep...ut unlike primates, a component of marsupial color vision includes sensitivity to ultraviolet wavelengths. In the study, researchers employed behavioral tes...

Rare Chinese frogs communicate by means of ultrasonic sound

...ense in fishes and homing pigeons, polarized light vision in ants, chemical sensing of pheromones in insects and rodents, echolocation by ultrasound in bats and dolphins, are just a few examples. "That frogs can communicate with ultrasound adds to that list and represents a novel finding, because we normal...

Australian first to save sight

...tponements and waiting time for people living with vision loss," Dr Pollock said. Corneal recipient Dorothy O'Kane, 61, welcomed the news after initially missing an opportunity for a corneal transplant when she was on holiday in South Australia. "If this system had been in place at that time I could have ...

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

... Human light-reception cells responsible for color vision are called cone cells or photoreceptors, and they contain only one kind of pigment per cell - red, green, or blue. A color image results when light-triggered signals in the three different types of cone cells are compared by other nerve cells in the ...

UF scientists trace origin of shark's electric sense

...on of sensory systems, such as olfaction, hearing, vision and touch, this shows sharks took a pre-existing genetic program and used it to build yet another type of sensory system," Cohn said. UF and University of Louisiana researchers analyzed electroreceptordevelopment in the embryos of the lesser spotted...

Biofuels can replace about 30 percent of fuel needs with significant research and policy effort

...nt improvements in how biofuel is processed. Their vision is for a fully integrated biorefinery, which is designed to take advantage of advances in plant science and innovative biomass conversion processes and equipment to produce fuels, power and chemicals from biomass. The biorefinery would work much lik...

New 'implanted contacts' designed to fix nearsightedness

..., by bending light rays to improve blurry distance vision without the need for glasses or contacts. Dr. Bow... percent ?almost 175 patients ?had 20/20 or better vision after three years. Ideal candidates are typically under 40 years of age and don't yet have presbyop...

A case of mistaken molecular identity

...n after noticing Chagas patients complaining about vision problems. "This was her idea, that the same antibo...on, said Levin. Levin said that Chagas patients' vision problems are caused exclusively by the antibodies that block rhodopsin, and not by inflammation. "In...

'Prosthetic' retinal cells let blind mice see light

...riment that could offer a new pathway to restoring vision in people with inherited retinal degeneration, res...tic engineering approach can be applied to restore vision in humans with inherited retinal degeneration disorders. For one thing, they said, they have not yet...

New crop of technology reveals plant health

..., in near real-time. PLANTS adhered to a broader vision where the virtual (computing) space was seamlessly integrated with the physical environment. One of its main objectives was to develop the necessary software modules, tools and methodologies that enable the efficient and flexible integration of 'augm...

Anti-inflammatory drug's potentially deadly side effect found to be rare

... sheaths surrounding brain cells. Symptoms include vision loss, mental deterioration, speech disturbances, loss of coordination and, in advanced phases, paralysis and coma. "It leaves the brain short-circuited," Clifford says. "It's a very bad disease that normally progresses to death within a few months u...

Chimpanzees can transmit cultural behavior to multiple 'generations'

...al effects of hormone replacement therapy; address vision disorders; and advance knowledge about the evolutionary links between biology and behavior. ...

Stanford snake venom study shows that certain cells may eliminate poison

...sweating or chills, with numbness, nausea, blurred vision and possibly convulsions before it's all over. Such misery is produced by a veritable witches' brew of toxins in snake venom. It's long been thought that the body's own immune system, rather than reducing the symptoms, may make things worse. But no...

MIT 'seeing machine' offers hope to blind

...challenged people with a range of causes for their vision loss who tested it in a pilot clinical trial. The ...Goldring was blind. (Surgeries have since restored vision in one eye). To better examine her eyes, Aiello asked her to go to the Schepens Eye Research Insti...

UF scientists restore sight to chickens with blinding disease

...n F. and William L. McKnight Brain Institute. "The vision capabilities of the treated animals far exceeded o...e transfer experiment five years ago that restored vision to blind Briard dogs. "This is proof of concept using a unique vector, animal model and approach. On...

Seeing the serpent

...brains, and grasping hands and feet, and use their vision to guide reaching and grasping. Scientists have th...al system does not actually fit with the idea that vision evolved along with reaching and grasping, Isbell said. But the visual system does seem to be well co...

New tiger report release: Tiger habitat down from just a decade ago

...here there is a broad landscape-level conservation vision with buy-in from stakeholders. "This report documents a low-water mark for tigers, and charts a way forward to reverse the tide," said John Robinson of the Wildlife Conservation Society. "We can save tigers forever. However, tiger conservation requ...

Nicotine exposure during development leads to hearing problems

...her higher cognitive functions and may also impair vision and other senses. Nicotine does seem to actually enhance cognitive processing when administered to adults, a finding that has also been shown in previous studies. The researchers found that in this study, nicotine appeared to enhance auditory funct...

Scientists discover why cornea is transparent and free of blood vessels, allowing vision

...e of blood vessels--a unique phenomenon that makes vision possible. The key, say the researchers, is the une...bility to maintain a blood-vessel-free cornea, our vision would be significantly impaired," he says, adding that clear, vessel-free corneas are vital to any a...

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