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Tag: "individual" at biology news

Pleasure and pain: Study shows brain's 'pleasure chemical' is involved in response to pain too

...nce that vulnerability to drug addiction is a very individual phenomenon ?and one that can't be predicted by cur...salience of a stimuli ?the importance of it to the individual ?and makes it relevant for them to respond to." The study, which involved 25 healthy men and wome...

Mirrors in the mind: New studies elucidate how the brain reflects onto itself the actions of others

...chnical limitations have impeded identification of individual mirror neurons in humans, but brain-imaging studies support the existence of these neurons. In the new work from Lisa Aziz-Zadeh and colleagues, researchers used a brain-imaging technique to investigate how literal phrases describing actions perform...

Innovative movies show real-time immune-cell activity within tumors

...t is now possible to visualize the behavior of the individual cellular components of the tumor microenvironment in real-time. Second, we have demonstrated that T cells physically interact with tumor cells, which had not been shown before. Finally, it's the presence of antigen that determines how T cells migrate...

Bitter taste identifies poisons in foods

...the findings provide a complete picture describing individual differences in responses to actual foods at multip...d, depending upon the physiological context of the individual eating them. Most people in industrialized cultures can and should enjoy these foods. In addition ...

Professors to develop hand-held pathogen testing device

...athogen at a time. Testing for each pathogen on an individual basis is dangerous, more expensive and time consuming. Simultaneous testing simplifies the process, making it safer and more cost effective. Earlier this year, Hashsham was awarded $966,608 from the 21st Century Jobs Fund to develop and commercia...

Cardiologist's 'living chip' changes science of disease monitoring

...chnology. "21st Century medicine recognizes that individual patients respond differently to diagnostic and the...ogic Communications, one of which was filled by an individual who relocated from Florida, will undoubtedly have a positive impact on Rochester. "Our economy rec...

Proteins anchor memories in our brain

...nding supports the promise of treatments targeting individual body proteins or antigens since we have shown that a single self-antigen can trigger disease," he added. A similar mechanism may be at play involving other autoimmune diseases such as type 1 diabetes, Anderson said. Immunologists have demonstrate...

Autoimmune disease triggered if T cells miss a single protein early on

...nding supports the promise of treatments targeting individual body proteins or antigens since we have shown that a single self-antigen can trigger disease," he added. A similar mechanism may be at play involving other autoimmune diseases such as type 1 diabetes, Anderson said. Immunologists have demonstrate...

Highly concentrated botulinum preparation for cosmetic injections can result in severe illness

...ould be modified to reduce the weight threshold of individual shipments subject to regulation and should require researchers to provide legal documentation of credentials and adequate laboratory facilities prior to shipment of toxin," the authors conclude. ...

Malaria vaccine prompts victims' immune system to eliminate parasite from mosquitoes

...t in mosquitoes. The parasite is injected into an individual by the bite of an infected mosquito. Numerous experimental vaccines have been tried against the form of the parasite that resides in humans, but have been unsuccessful or produced limited immunity. The Plasmodium cells escape the human immune syste...

Researchers map spread of pathogens in the human body

...s with observational data to predict the spread of individual bacteria within the human body. Their findings ar...nic microorganisms. These studies indicate that individual bacteria and their progenies cleverly escape from host cells and distribute to new sites of the body...

New biochip helps study living cells, may speed drug development

...ancreatic cells. The chip currently can detect individual levels of different ions. Porterfield believes that with some modifications, however, the chip will be able to measure multiple ions at once and perform even more advanced functions such as electrically stimulating a cell with one electrode while rec...

Singing for survival

...tional Park, Thailand. They were able to identify individual gibbons according to their voice and describe gibb...redator songs within the group setting, the absent individual responded with his own song, before reappearing to join the group again. Because gibbons are unus...

On the golf tee or pitcher's mound, brain dooms motion to inconsistency

...ials the researchers would monitor the activity of individual neurons in the premotor cortex, a part of the brain responsible for movement planning, while the monkeys were planning their reaches. Then the researchers would record the speed of the resulting motion. Over a series of thousands of trials, the res...

Mayo Clinic study suggests that a central nervous system viral infection can lead to memory deficits

...mory loss could accumulate over the lifetime of an individual and eventually lead to clinical cognitive memory d...ornavirus infections throughout the lifetime of an individual may chip away at the cognitive reserve, increasing the likelihood of detectable cognitive impairment...

Honey bee genome holds clues to social behavior

...n how the honey bee society influences behavior in individual honey bees," said Sinha, who is lead author of a paper that will be posted online this week ahead of regular publication by the Proceedings of the National Academy of Sciences. "By studying the social regulation of gene expression, we hope to extrapo...

Five new technologies that promise to transform medicine

...stroy infections before they cause disease. The individual and collective impact of these technologies is already present in some aspects of contemporary medicine and the rate of their impact is increasing, he concludes....

Complexity constrains evolution of human brain genes

...ears to be greater in humans. "On the basis of individual neurons of the brain, humans may indeed have a far more active, or even more complex, transcription profile than chimpanzee," the authors note. "We suggest that such abundant and complex transcription may increase gene-gene interactions and constrain...

Female pronghorns choose mate based on substance as well as show

...hwestern Montana, for 20 years, and recognizes all individual pronghorn in the population. In recent research, Byers and his coauthor Lisette Waits, also of the University of Idaho, obtained genetic markers for all pronghorn individuals in the population and assigned paternity to the offspring. "The females...

Scientists find a key to immune system's ability to remember

...e a few that are primed for active duty against an individual infectious agent. Following infection or vaccination, Lck initiates a biochemical chain of events that vastly increases the number of T cells that march off to combat the invader. After the infection subsides, the number of T cells marshaled to fi...

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