Brain Protein "Rescues" Neurons From Atrophy
...e, the Duke scientists used newborn ferrets, whose eyes had not yet opened, and thus, whose brain visual pathways had not yet fully developed. The scientists kept one eye of the infant ferrets closed, which normally results in atrophy of neurons in the brain region serving that eye, compared to the neuron...Discovery Of Cell Sites May Shed Light On How Bodily Systems Interact
...e synthesizingcells in the pituitary also have the eyes that can sense the presence ofdisease-causing bacterium." When a bacterium enters the body, it is taken in by macrophages, which arecells scattered throughout the body that ingest foreign cells. The bacteriumcauses the macrophages to produce IL-1, a...First Salmonella Vaccine For Poultry To Be On The Market Soon
...sol spray that deposits the vaccine to the chick's eyes and nares (nostrils). "Sometimes the chicks don't drink anything for a day or two after hatching because they still have lots of fluids from the egg yolk to subsist on," Curtiss says. "Delivering the vaccine as a spray can eliminate the time and cos...Scientists Discover How Genes Work Together To Control Neural Development
... photoreceptor neurons. "That's whenwe dissect the eyes to look at them under the microscope," Lai says. External signals tell the developing cells what kind of cell to becomeby initiating a cascade of internal molecular reactions called the "signaltransduction pathway." "Cancer can result if errors occu......sent in angiogenic tumors as well as vascularizing eyes suggeststhat there is a common mechanism for regulating the development of new bloodvessels." Funding for the study was provided by the National Cancer Institute andNational Eye Institute of National Institutes of Health (which accounted for...USGS Cautions Proper Use Of Pepper Spray To Avoid Bear Attacks
...n bear encounterswhen sprayed directly in a bear's eyes or nose, his pilot study shows that sprayresidues did attract brown bears when used in nonaggressive situations. Brownbear responses to red pepper spray-treated sites in his study ranged from meresniffing to whole body rolling in the residues, an un...New Research Suggests REM Is About Eyes Not Dreams
...ten recall a dream ifthey were awakened when their eyes appeared to be darting around beneath theireyelids...ed his theory when he learned of a young man whose eyes had beenimmobilized by an accident and whose corneas had become laced with bloodvessels, presumably ...Carbon In Boreal Forests: Temporary Or Permanent?
...Require Strict Carbon Accounting The Issue The eyes of scientists and politicians have recently turned toward Canadianboreal forests as a possible cure for the excessive carbon dioxide in theatmosphere. Satellite data and field experiments have indicated that globalwarming could stimulate the growth o...Butterfly Wings, Beetle Horns Teach Biologists Basic Lesson In Development's Laws
...stest growingtissues -- including wings, horns and eyes -- are most limited by resources, theDuke biologists said. Nijhout emphasized that, while he and Emlen began their experimentswith a theory that competition for nutrients might be the basis for any observedchanges in the insects, they still...Purdue Research Helps Keep Phosphorus Out Of Surface Water
...ons to address these sources." Even before federal eyes turned back to phosphorus, Purdue researchers suspected that old theories about the nutrient's movement weren't accurate. In 1992, Joern started measuring phosphorus levels in fields and found that phosphorus can move down through soils. "Fields with...... this structure the information of both eyes converges and thereby allows depth-vision through a comparison of the pictures seen by either eye. As shown by the pioneering studies by Drs. Hubel and Wiesel in the 1970s, impairment of vision in one eye in infants leads to...Nice Motor...Shame About The Smell
...e motorists and their passengersrunny noses, itchy eyes and other allergic reactions. Robert Simmons and his colleagues at Georgia State University in Atlantahave recorded at least 15 different types of fungi growing in the foam and gluethat surround the heat exchangers in car air-conditioning s...Gene Linked To Glaucoma, Hydrocephalus, And Other Birth Defects
...so have severalother abnormalities, including open eyes -- they are usually closed in newbornmice -- a missing sternum and other skeletal defects, and problems with theirblood vessels and kidneys. In the 1970s, scientist Margaret Green, working at the JacksonLaboratory in Bar Harbor, Maine, studie...UF Discovery Of Chicken Gene Mutation Aids Study Of Rare Inherited Eye Disease
...olor vision, are essential for humansight. Chicken eyes have a high percentage of cones, which makes themexcellent models for studying human eye diseases. Inherited retinal diseases affect 100,000 to 200,000 people in theUnited States and more than 1 million worldwide. While only one to threepeople ......ing the initial eye field from separating into two eyes during embryonic development. The model The mainstream model for patterning of the central nervous system was demonstrated in the 1980s and much supportive evidence has been obtained ever since. In this model, the notochord instructs neural tube p...Scientists Find New Clues About Fatal Childhood Disease, Ataxia Telangiectasia
...and telangiectasia, or dilated bloodvessels in the eyes and other parts of the face. People with A-T usually die ofrespiratory failure or cancer by their early twenties. Carriers of A-T, whopossess a single defective copy of the ATM gene, escape most problems associatedwith the disease but may have a sl...Gene Therapy Animal Study Offers Hope For Some Neurodegenerative Diseases
...months, 30 to 40 percent morerod cells remained in eyes that had been injected with either of the ribozymesthan in eyes receiving placebo injections. "We've demonstrated the effectiveness of these approaches by direct m...Out On A Limb: Young Burro Receives Artificial Leg At Colorado State
... the slender Lee putsit, "My beard gets whiter, my eyes crinkle and I gain 100 pounds." Lee, who notes that "I could have bought 30 burros for what I've spenton this baby so far," doesn't regret his decision. "Realistically, I should probably have put the baby down," he said. "ButI felt r......hen we see one. But why do sometraits, "say, large eyes and broad shoulders" seem attractive, as opposed to nosehair and a paunch? According to University of Texas zoologist Michael J. Ryan,the answer may be that mate choice is colored by perceptual biases hard-wiredinto an animal's sensory system for rea...Two Brandeis Scientists Shed Light On The First Photoreceptor Known To Set Circadian Rhythms
...n, a photosensitive family of proteinsfound in the eyes of mammals. "Most researchers in the field have expected thatthe key light sensor for circadian rhythms would be rhodopsin, which appears tofunction in mammalian circadian rhythms," says Rosbash, a professor of biologyand Howard Hughes Medical Instit...