Tag: "tongue" at biology news
Earth from Space: Iceberg knocks the block off Drygalski Ice Tongue
...erture Radar (ASAR), shows the iceberg and the ice tongue
before and after the collision. On 26 March, C-16 was pinned at the southern edge of the ice tongue
but had started migrating by 27 March. The collision on 30 March shows the ice tongue
breaking off, ...
Researchers look to the brain to explain gender differences in sleep apnea
...ys between two areas of the brain that control the tongue
-- and their interactions with each other -- may h...es they play in controlling the tongue. Diminished tongue
control is a major cause of obstructive sleep apnea, a serious condition which strikes men much more...
Pepper component hot enough to trigger suicide in prostate cancer cells
...turns up the heat in jalapeos, not only causes the tongue
to burn, it also drives prostate cancer cells to kill themselves, according to studies published in the March 15 issue of Cancer Research. According to a team of researchers from the Samuel Oschin Comprehensive Cancer Institute at Cedars-Sinai Medica...
Living taste cells produced outside the body
...te receptor cells are located in taste buds on the tongue
and in the throat. These cells contain the receptors that detect taste stimuli: sweet, sour, salty, bitter, and umami (savory). Each taste receptor cell lives for only about 10-14 days, after which it is replaced. The new taste cells develop from a p...
Asian populations less likely to get relief from chest pain with nitroglycerin
...patients who were self-administering GTN under the tongue
during acute attacks of angina. Eighty subjects (72%) reported pain relief that occurred in less than 10 minutes (responders) and the remainder had no pain relief (nonresponders). The authors determined that the nonresponders tended to have the A...
Variation in bitter-taste receptor gene increases risk for alcoholism
... a gene variant for a bitter-taste receptor on the tongue
is associated with an increased risk for alcohol dependence.The research team studied DNA samples from 262 families, all of which have at least three alcoholic individuals. The families are participating in a national study called the Collaborative S...
Cheek cells used to identify lung cancer
...the cheek with a small wooden spatula similar to a tongue
depressor," said Dr. Turic. "Ultimately, this test could be administered in primary care settings or dental offices. The procedure is simple enough that specimen collection could be done by patients themselves." Researchers stress that additional cli...
Toxins drove evolution of human taste sense, global study reveals
... mammals, including humans, taste receptors on the tongue
can detect five primary flavors: bitter, sweet, sour, salty and umami -- a savory or meaty taste. Taste receptors are protein switches that trigger signals to the brain's taste-processing centers in response to particular foods or other chemicals. In...
Bitter or sweet? The same taste bud can tell the difference
... the rear of the tongues of rats. (The back of the tongue
has the highest concentration of taste buds.) They isolated single cells from individual taste buds. They attached very small, fine electrodes to these single cells in Petri dishes in order to record the electrical activity of each cell. They also ap...
Purdue researchers find key to rice blast fungus
...eceptors (GPCR). In humans, GPCRs are found on the tongue
and in the nose and are part of what makes foods taste different. The scientists discovered that rice blast fungus has more than 40 GPCRs that probably are regulating the signals at the beginning of the penetration pathway. "We are working on the bas...
Vampires beware: Scripps scientists describe molecular basis of raw garlic's pungency
...rons embedded in the skin, including the mouth and tongue
that the human body uses to detect temperature and pain. Raw garlic activates a class of temperature-detecting molecules known as the transient receptor potential (TRP) ion channels on the surface of these neurons. TRP channels are some...
New collision looks imminent for B-15A iceberg
...sat image reveals, this time its target is the ice tongue
of the Aviator Glacier. First discovered in 1955, ... at Lady Newnes Bay, where it forms a floating ice tongue
that extends into the water for about 25 kilometres. This Envisat Advanced Synthetic Aperture Radar...
Discovery may lead to better Candidiasis drug
...sh spots and ulcers on the membranes of the mouth, tongue
and throat. It affects primarily people with weakened immune systems caused by antibiotics, chemotherapy or by diseases such as AIDS. Thrush also affects many denture wearers. The condition can be treated with antifungal medication in otherwise he...
B-15A iceberg's close encounter monitored by Envisat
...ypothesis that the seabed around the Drygalski ice tongue
is shallow, and surrounded by deposits of glacial ...ly show a continuity of snow-covered ice. "An ice tongue
is 'pure' glacial ice, while the surrounding ice is fast ice, which is a form of saline sea ice," Dr...
Other highlights in the January 5 JNCI
...ely relevant to cancer development. Esophageal and tongue
cancers have been associated with dietary zinc deficiency, and these cancers often overexpress COX-2, a characteristic known to contribute to carcinogenesis. Louise Y. Y. Fong, of the Kimmel Cancer Center of Thomas Jefferson University in Philadelphi...
Holes in fossil shells show effects of competition and evolution
...ell to reach the soft body inside. Using a rasping tongue
and a cocktail of chemicals to drill through the wall of the shell takes several days, but under stress of competitive pressure, snails attack through the shell edge a faster, but riskier access. The shift in feeding behavior patterns was demonstra...
Iceberg poses no threat to Antarctic personnel
... melt. If it's the former, the impact with the ice tongue
could come as soon as Dec. 24. The U.S. Coast Guard icebreaker Polar Star left Seattle, Washington, on Nov. 4 and should reach the edge of the sea ice about Dec. 27. It will begin immediately to cut a channel in the sea ice for the supply ships. Offi...
Genetic influences on taste perception of alcohol may influence alcohol intake
...nd alcohol intake. Taste papillae on the anterior tongue
(fungiform papillae) were also counted. "There were two primary findings," said Duffy. "People who tasted the least bitterness from PROP or who were TAS2R38 nontasters consumed more alcohol than those who tasted the most bitterness from PROP or who ...
Scientists uncover secret to sharp teeth
... side closest to the lip while the side facing the tongue
remains enamel-free. This irregular distribution of enamel helps to keep the cutting edges of the incisors very sharp. While it is well established that cells called ameloblasts secrete enamel, the molecular signals regulating asymmetric ameloblast...
Coke versus Pepsi: It's all in the head
...for Coke versus Pepsi is not only a matter for the tongue
to decide, Samuel McClure and his colleagues have found. Brain scans of people tasting the soft drinks reveal that knowing which drink they're tasting affects their preference and activates memory-related brain regions that recall cultural influences...
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