Tag: "nasal" at biology news

Fused nasal bones helped tyrannosaurids dismember prey

... researcher whose finding demonstrates how a fused nasal bone helped turn the animal into a "zoological superweapon." "Fused, arch-like nasal bones are a unique feature of tyrannosaurids," said Dr. Eric Snively, a post doctoral research fello...

Smell may outlast other senses

...o not smoke, take medications or have a history of nasal problems such as sinusitis. However the abilit...mokers, people on medications or with a history of nasal problems. ...

Penn study on olfactory nerve cells shows why we smell better when we sniff

...f smell-sensitive tissue on the septal wall of the nasal cavity. The second, the main olfactory epithelium, is a smell-sensitive tissue inside the nasal cavity. Synchronized Breathing The septal organ is only about 1 percent the size of the main...

Antivirals effectively curb influenza virus

...ies inhaled zanamivir did not significantly reduce nasal symptoms. In the paper the authors discussed the possibility that infectious droplets inhaled and exhaled from the nose may be important in viral transmission, thus orally administered oseltamivir might have an advantage in limiting spread. In addr...

Experimental vaccine given during pregnancy reduces stillbirths from common virus

...s in the skin. It can also be transmitted through nasal secretions, blood transfusions, and sexual contact. Most adults will become infected with CMV at some point during their lives. Dr. Schleiss added that pregnant women may not even know they have the infection. CMV Vaccine Prototype The ex...

When smell cells fail they call in stem cell reserves

...cells but also neighboring, non-nerve cells in the nasal passage. Three weeks after chemical exposure, the researchers examined nasal cells to see which, if any, had grown back. They discovered that the newly grown cells, both ner...

Hopkins scientists link immune response to 'ghost' parasites and severely congested sinuses

...eks or months after surgery fails to keep open the nasal passages, scientists say. The Hopkins report, ...ked at the enzyme's tie-ins to asthma, which, like nasal polyps, is an inflammatory response of the body's immune system. The theory, Lane says, is that all...

Silver bullet: UGA researchers use laser, nanotechnology to rapidly detect viruses

... use in biological samples such as blood, feces or nasal swabs. Tripp said preliminary results are so promising that the researchers are currently working to create an online encyclopedia of Raman shift values. With that information, a technician could readily reference a Raman shift for a particular virus...

Flu shot effective against drifted influenza, nasal spray vaccine less so

...uenza in healthy adults. The live attenuated-virus nasal spray vaccine also prevented illnesses but was les...dy found. Earlier studies had suggested that the nasal spray, sold by MedImmune as FluMist, might offer better protection against drifted viruses that had ...

Triple threat polymer captures and releases

...even be used as a timed drug delivery system –as a nasal spray, for instance. Karen L. Wooley, Ph.D., Wa...lease of a volatile agent ?maybe for some kind of nasal inhalation-based delivery of drugs. Or maybe something as simple as a room temperature release of ...

Blood test predicts success of quitting smoking using the nicotine patch

...and started using either the patch or the nicotine nasal spray for eight weeks. Measurements of carbon monoxide levels in exhaled air identified those who were not smoking at the eight-week and six-month intervals following the quit date. Study participants also provided information on level of cravings fo...

Scientists to employ Arctic ice and polar bears to protect diversity of world's crops

...vaccine completely protected ferrets from a lethal nasal infection against not only the original virus the vaccine was made to thwart, but also against a newer variant that has already proved fatal to humans. The ferrets experienced a more significant reduction of virus multiplication than otherwise would ...

H5N1 vaccine could be basis for life-saving stockpile

...vaccine completely protected ferrets from a lethal nasal infection against not only the original virus the vaccine was made to thwart, but also against a newer variant that has already proved fatal to humans. The ferrets experienced a more significant reduction of virus multiplication than otherwise would ...

FSU biologist says new dinosaur is oldest cousin of Tyrannosaurus rex

...eristic long hip, the U-shaped teeth and the fused nasal bridge. While they weren't exactly T. rex look-alikes, they were definitely family. But there were marked differences. Among them, in addition to its distinctive cranial crest, Guanlong was roughly 100 million years older and a fourth the size of it...

Duck-billed dino crests not linked to sense of smell

...heir large cranial crests, which contain elongated nasal passages and loop over their skull. Duck-billed dinosaurs are sometimes referred to as the "Cows of the Cretaceous period" and lived 85 million to 65 million years ago. Evans reconstructed the dinosaurs' brain cavity using well-preserved fragments o...

Needle-free immunizations

...ch include topical application to the skin, pills, nasal sprays, injections, and others. Considerable advan..., especially in transdermal (through the skin) and nasal immunization. "Unfortunately, because of the development costs of new immunization methods, use of ...

The brain is broadly wired for reproduction

...romones -- from the vomeronasal organ (VNO) in the nasal septum. However, the systems are not entirely parallel. Buck and her colleagues have shown that the VNO can detect some odorants. And conversely, there is evidence that some pheromone signals require input from the nose in addition to the VNO. "Our ...

Olfactory system detects pheromones that control reproduction

...nasal organ (VNO). Although the VNO resides in the nasal cavity, the pheromone sensory system is distinct from the sense of smell, as are the chemical receptors involved. In animals possessing a pheromone sensory system -- including mice, dogs, cats, and elephants -- the system governs a range of genetical...

New study examines how sense of smell affects mating and aggression in mice

...ghting. The MOE covers the olfactory region of the nasal cavity and contains sensory neurons that recognize odors and transmit this information to the brain. The study is important, says Shah, because it establishes a novel and hitherto unsuspected role for the MOE in regulating mating and aggressive beha...

New antibody shows promise as cure for anthrax

...boratory, researchers placed anthrax spores in the nasal passages of guinea pigs, mimicking exposure to inhalation anthrax. The doses were 250 to 625 times what would ordinarily be lethal to 50 percent of the animals. After 72 hours, the animals not treated with the antitoxin succumbed to the infection, bu...

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