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| Medicine articles |
New understanding of basic units of memory
A molecular "recycling plant" permits nerve cells in the brain to carry out two seemingly contradictory functions – changeable enough to record new experiences, yet permanent enough to maintain these memories over time.
Mit ids binocular vision gene
In work that could lead to new treatments for sensory disorders in which people experience the strange phenomena of seeing better with one eye covered, MIT researchers report that they have identified the gene responsible for binocular vision.
Ucla researchers identify the molecular signature of loneliness
It is already known that a person's social environment can affect his or her health, with those who are socially isolated — that is, lonely — suffering from higher mortality than people who are not.
Computer program traces ancestry using anonymous DNA samples
A group of computer scientists, mathematicians, and biologists from around the world have developed a computer algorithm that can help trace the genetic ancestry of thousands of individuals in minutes, without any prior knowledge of their background.
Scientists discover how cancer may take hold
A team, led by researchers at the Carnegie Institution, has found a key biochemical cycle that suppresses the immune response, thereby allowing cancer cells to multiply unabated. The research shows how the biomolecules responsible for healthy T-cells, the body's first defenders against hostile invaders, are quashed, permitting the invading cancer to spread. The same cycle could also be involved in autoimmune diseases such as multiple sclerosis.
Managing blood pressure, weight in middle age may protect heart in old age
Preventing heart failure at age 70 or 80 may depend upon maintaining normal blood pressure and a healthy weight at age 50, researchers reported in Hypertension: Journal of the American Heart Association.
Sense of taste different in women with anorexia nervosa
Although anorexia nervosa is categorized as an eating disorder, it is not known whether there are alterations of the portions of the brain that regulate appetite. Now, a new study finds that women with anorexia have distinct differences in the insula – the specific part of the brain that is important for recognizing taste – according to a new study by University of Pittsburgh and University of California, San Diego researchers currently on line in advance of publication in the journal Neuropsychopharmacology.
Music training linked to enhanced verbal skills
Music training, with its pervasive effects on the nervous system's ability to process sight and sound, may be more important for enhancing verbal communication skills than learning phonics, according to a new Northwestern University study.
Negativity is contagious
Though we may not care to admit it, what other people think about something can affect what we think about it. This is how critics become influential and why our parents' opinions about our life choices continue to matter, long after we've moved out. But what kind of opinions have the most effect? An important new study in the Journal of Consumer Research reveals that negative opinions cause the greatest attitude shifts, not just from good to bad, but also from bad to worse.
Doctors control their own brains pain responses to better treat patients
Physicians apparently learn to "shut off" the portion of their brain that helps them appreciate the pain their patients experience while treating them and instead activate a portion of the brain connected with controlling emotions, according to new research using brain scans at the University of Chicago.
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Scientists identify brain circuits used in sensation of touch
The ability to tactually recognize fine spatial details, such as the raised dots used in braille, is especially important to those who are blind. With that in mind, a team of researchers has identified the neural circuitry that facilitates spatial discrimination through touch. Understanding this circuitry may lead to the creation of sensory-substitution devices, such as tactile maps for the visually impaired.
Study finds that people are programmed to love chocolate
For the first time, scientists have linked the all-too-human preference for a food — chocolate — to a specific, chemical signature that may be programmed into the metabolic system and is detectable by laboratory tests. The signature reads 'chocolate lover' in some people and indifference to the popular sweet in others, the researchers say.
Why it is impossible for some to just say no
Drug abuse, crime and obesity are but a few of the problems our nation faces, but they all have one thing in common--people's failure to control their behavior in the face of temptation. While the ability to control and restrain our impulses is one of the defining features of the human animal, its failure is one of the central problems of human society. So, why do we so often lack this crucial ability?
Mit finds new hearing mechanism
MIT researchers have discovered a hearing mechanism that fundamentally changes the current understanding of inner ear function. This new mechanism could help explain the ear's remarkable ability to sense and discriminate sounds. Its discovery could eventually lead to improved systems for restoring hearing.
Rejection sets off alarms for folks with low self-esteem
Few can tolerate such romantic or professional rebuffs as "It's not you, it's me" and "we regret to inform you that your application was not successful." But while a healthy dose of self-esteem can absorb the shock of rejection, poor self-esteem can trigger the primal fight-or-flight response, according to a new study from the University of California, Berkeley.
Mice offer clues to the roots of human resilience
When faced with adversity, some people succumb to debilitating psychological diseases including posttraumatic stress disorder and depression, while others are able to remain remarkably optimistic. Now, a new mouse study in the October 19 issue of the journal Cell, a publication of Cell Press, reveals that the difference may depend in part on the chemistry of the brains' reward circuits.
Banked blood loses ability to deliver oxygen to tissues
Almost immediately after it is donated, human blood begins to lose a key gas that opens up blood vessels to facilitate the transfer of oxygen from red blood cells to oxygen-starved tissues.
Enhanced DNA repair mechanism can cause breast cancer
Although defects in the "breast cancer gene," BRCA1, have been known for years to increase the risk for breast cancer, exactly how it can lead to tumor growth has remained a mystery. In the October 15, 2007, issue of the journal Cancer Research, scientists from the University of Chicago and Kyoto University, Japan, suggest that a mechanism that normally repairs damaged DNA may function abnormally in BRCA1 carriers leading to one type of poor-prognosis breast cancer.
Earliest evolution of vision genes discovered
By peering deep into evolutionary history, scientists have discovered the origins of photosensitivity in animals: vision genes called opsins that first appeared in the aquatic animal species Hydra magnipapillata.
Blood may help us think
MIT scientists propose that blood may help us think, in addition to its well-known role as the conveyor of fuel and oxygen to brain cells.
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| Quotes | By convention!
cussed Tom airily.
Cmon Scully... Itll be a nice trip through the woods-Fox Mulder
But what ... is it good for?
Engineer at IBM, 1968, commenting on the microchip.
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