Tag: "odors" at medical news
Cellular porthole connects odors to brain
..., extending from the tissues lining the nose where odors
are sensed all the way to the brain. When you smell cookies baking, odor molecules bind to these cells, triggering a series of molecular "gates" on the cell surface to open. The open gates let charged ions, including chloride, move in and out of the ...
Scents and emotions linked by learning, Brown study shows
...de scents, researchers found that responses to new odors
depended on emotions experienced while the new odo... for pleasantness, familiarity and intensity. Most odors
were familiar and pleasant rose, vanilla, lemon and peppermint. But one was new: a unique mix of od...
Study finds lemons, lilac among top 10 smells that predict Alzheimer's Disease
...he smell of lemons, lilac, leather and seven other odors
predicts which patients with minimal to mild cogni...n of five years. Inability to identify 10 specific odors
(derived from the broader study) proved to be the best predictors for Alzheimer's Disease: strawberr...
Increased suicide rate is possibly linked to chemicals released from nearby asphalt plants
...from March 11, 1999, to Oct. 15, 2004, for noxious odors
and associated respiratory problems, which are still occurring though at a reduced rate said Weisler. In addition to suggestions of an increased suicide rate, the incidence rate of primary brain cancers in these neighb...
How odors help make multimodal memories
...d when they saw objects previously associated with odors
-- even though the odors
were not presented during the image recognition. Also, the subjects' hippocampal areas were activate...
Scents will not rouse us from slumber, says new Brown University study
...iversity study. Study participants easily detected odors
when awake and in the early transition into sleep ...to encourage nose breathing. Researchers presented odors
through a tube attached to an air-dilution device. The odors
were tested during moderately deep Stag...
Loss of smell linked to key protein in Alzheimer's disease
...ch odors, and do not show a preference for "novel" odors
over "familiar" odors. The results of the Penn s...in brain regions associated with the perception of odors
in the bodies of people who suffer from these illnesses. "The mice who overexpress tau, a protein as...
Asthma at school is disruptive to routine underdiagnosed, often poorly understood, survey suggest
...al triggers, such as mold, dust, chemicals, strong odors
or furry or feather animals; Ensuring children take their medication at regular intervals, as prescribed; Guaranteeing ready access to medications in case of an asthma episode, and Allowing children to pre-treat with medications prior to ex...
Cancer patients' loss of taste, smell compromises treatment
... then scored their ability to detect and recognize odors
and flavors presented to them in a laboratory. Patients who reported the lowest degree of taste and smell ability, and who scored the lowest on the psychophysical measurements, also experienced the most weight loss, body-mass loss and nutritional def...
Choline prevents liver failure in patients on IV nutrition
...s who had taken pure choline orally developed body odors
that smelled like dead fish. This prompted Buchman and his colleagues to develop an IV formulation of the nutrient that was stable and could be administered through TPN solutions. "When we gave choline intravenously, we were able to get the blood l...
New sensor upgrades artificial bomb sniffers
...e looses its ability to sense and remember certain odors
as people age. So the sensors need to be retrained or resensitized frequently to recognize target odors, he says. In a process akin to replacing a dead battery with a fresh one, the new sensor is made with specially designed disposable fluorescent p...
Brain's efforts to save itself during Alzheimer's may backfire
...so tested to determine if they could remember food odors
that they had smelled earlier on other mice. Normally, mice have an excellent memory of scents. But mice with excess galanin were unable to recall whether they had sniffed cinnamon or cocoa on other mice. Olfactory memory and spatial memory rely on d...
How the nose knows
...asily be altered to accommodate avast array of new odors
while the "framework" of the receptor remains largelyunchanged. This structural picture is very similar to what haslong been known about antibody molecules: They contain a small, highly variableregion geared to recognize an endless army of foreign in...
Penn State Chemist Identifies New Lime Aroma Component
...sin the aroma. "The human nose can detect odors
at far lower levels than instruments,"she says. "The human nose is the most sensitive detector on the market tomeasure aroma intensities. "We take very simple combinations of only two or three compounds foundin lime oil and have the students...