Tag: "mem" at biology news

Veterinary Memorial Fund transforms grief into promise

Blacksburg, Va. -- When President George W. Bush lost his beloved dog Spot earlier this year, he received a letter of consolation from Gerhardt Schurig, dean of the Virginia-Maryland Regional College of Veterinary Medicine.... ...The letter informed the President that a donation had been made to the college's "Veterinary Memorial Fund" by an employee in the White House in honor of his beloved spa...

Brown research reveals key insight into memory-making

PROVIDENCE, R.I. -- How information is stored in the nervous system, a key to memory and learning, is one of the hottest topics in neuroscience today. New research conducted at Brown University and Duke University Medical Center, published in the current issue of , fills in important details about cellular changes that occur when experience becomes memory....... This process is called long-term...

Wrapping a memory with an experience, capacity for recollection detected in non-human species

(Boston) -- For millennia, the process of memory and remembering has intrigued scholars and scientists. In 350 B.C., Aristotle, in his seminal treatise on the subject, described it as having two forms: familiarity and recollection. Of these, he considered recollection to be a purely human condition. ... ...That tenet is now being challenged by researchers at Boston University. ...... Neurobio...

Homeland security initiative takes Memphis' ORNL technologies to the nation

OAK RIDGE, Tenn., Aug. 23, 2004 The Department of Homeland Security's recent selection of Memphis as a "best practices" model for high-tech security measures could speed the implementation of similar technologies in other cities.... ...As the third of four sites to be named under DHS' Regional Technology Integration Initiative, Memphis becomes a source of practical security "know-how," provid...

Forgetting, reminding, and remembering: The retrieval of lost spatial memory

Most forms of memory loss are caused by some type of brain injury -- particularly to the hippocampus. Amnesia can arise from brain damage that interferes with memory storage, retrieval, or consolidation. What ultimately causes amnesia -- a failure to store memories or a failure to retrieve them -- is not clear.... ...A major challenge in resolving this question experimentally is being able to d...

Rutgers scientists discover protein in brain affects learning and memory

NEW BRUNSWICK/PISCATAWAY, N.J. Rutgers researchers have discovered what could be the newest target for drugs in the treatment of memory and learning disabilities as well as diseases such as Alzheimer's and fetal alcohol syndrome: a protein known as cypin....... Cypin is found throughout the body, but in the brain it regulates nerve cell or neuron branching. Branching or dendrite growth is an im...

Membrane separation technology produces myriad applications in numerous industries

... ... San Jose, Calif. April 18, 2003 Moving beyond early applications such as the clarification of wine, membrane separation's strong presence and successful application in the chemical and other industries seem to suggest that this revolutionary technology is here to stay.... ..."Because of widespread innovative engineering effort, membrane technologies have come a long way since they w...

Scientists enhance fruit fly memory using mouse protein: New clue to fundamental brain mechanism

Researchers have found that they can enhance memory in fruit flies by boosting the level of a protein called PKM. The scientists could trigger memory enhancement in the flies by using either a fly or a mouse version of PKM. The study, published in the April issue of Nature Neuroscience, provides an important new clue about a fundamental mechanism of memory common to flies, humans, and most other...

Mutant mice lead to memory insights

Two strains of mutant mice with crippled versions of a key memory molecule have led researchers to an understanding of both normal memory function and the memory problems that plague sufferers of an inherited disorder. ...... The researchers said their findings suggest that drugs already being tested for cancer and Huntington's disease might be useful in restoring some memory capability to patien...

Protein believed to control formation of memory identified by Scripps & UCSD scientists

Scientists at The Scripps Research Institute and the University of California, San Diego (UCSD) School of Medicine have demonstrated that the action of a protein called CBP is essential for the stabilization of long-term memory, a discovery that may help children with a rare but debilitating developmental disorder. ... ...They found that when the functions of normal CBP is suppressed in adult ro...

Salmonella infects cells and saves itself by altering host membrane lipids

New Haven, Conn. -- Jorge Galan and his colleagues in the Section of Microbial Pathogenesis at the Yale School of Medicine report a new and fundamental mechanism that Salmonella bacteria use to replicate within body cells and cause disease without endangering themselves. The work appears in the June 18 issue of .... ...Most dangerous bacteria that enter the body are engulfed and digested b...

Alzheimer's may leave some forms of memory intact

Howard Hughes Medical Institute (HHMI) researchers have made the surprising discovery that people with Alzheimer's disease retain the capability for a specific form of memory used for rote learning of skills, even though their memories of people and events are extinguished.... ...The scientists' discovery suggests new strategies to improve training and rehabilitative programs that may...

Memory fails you after severe stress

PEOPLE are woefully bad at recalling details of their own traumatic experiences. When military personnel were subjected to threatening behaviour during mock interrogations, most failed to identify the questioner a day or so later, and many even got the gender wrong. The finding casts serious doubt on the reliability of victim testimonies in cases involving psychological trauma. ...... Numerous s...

Study in flies allows researchers to visualize formation of a memory

For the first time, researchers have used a technique called optical imaging to visualize changes in nerve connections when flies learn. These changes may be the beginning of a complex chain of events that leads to formation of lasting memories. The study was funded in part by the NIH's National Institute of Neurological Disorders and Stroke (NINDS) and appears in the May 13, 2004, issue of Neu...

UCLA scientists decipher how the brain retrieves and stores our oldest memories

For the first time, UCLA neurobiologists have pinpointed a region of the brain called the anterior cingulate as responsible for retrieving and storing distant memories. Published in the May 7 edition of Science, the findings may suggest new ways of treating memory disorders, including Alzheimer's disease and other dementias. ......"Scientists have long understood that the hippocampus processes...

Andres Vazquez-Torres honored with 2004 Merck Irving S. Sigal Memorial Award

WASHINGTON, DC--APRIL 23, 2004--Andres Vazquez-Torres, Ph.D., Assistant Professor of Microbiology at the University of Colorado Health Sciences Center (UCHSC), Denver, will receive the 2004 Merck Irving S. Sigal Memorial Award from the American Society for Microbiology (ASM). Supported by an unrestricted educational grant from Merck Research Laboratories, Inc., two Sigal Awards are presented for...

American Society for Microbiology honors Timothy Yahr with 2004 Merck Irving S. Sigal Memorial Award

WASHINGTON, DC--APRIL 23, 2004--Timothy L. Yahr, Ph.D., Assistant Professor of Microbiology at the University of Iowa, Iowa City, will receive the 2004 Merck Irving S. Sigal Memorial Award from the American Society for Microbiology (ASM). Supported by an unrestricted educational grant from Merck Research Laboratories, Inc., two Sigal Awards are presented for excellence in basic research in medica...

Polio victory remembered

APRIL 26, 2004 -- Fifty years ago today, thousands of parents drove their school-age children to designated sites across the country for immunization with an experimental vaccine that they hoped would stop, once and for all, the raging polio epidemic that was leaving young Americans paralyzed and sometimes dead. ... ...Organized and funded by the March of Dimes, this was the largest clinical...

National Academies news: 72 new members chosen by academy

WASHINGTON -- The National Academy of Sciences today announced the election of 72 new members and 18 foreign associates from 13 countries in recognition of their distinguished and continuing achievements in original research....... The election was held this morning during the business session of the 141st annual meeting of the Academy. Election to membership in the Academy is considered one of...

Biochemist becomes 15th UT Southwestern faculty member serving on National Academy of Sciences

DALLAS April 20, 2004 Dr. Xiaodong Wang, a professor of biochemistry at UT Southwestern Medical Center at Dallas who discovered the biochemical pathway responsible for cell death, today was elected to the National Academy of Sciences, one of the highest honors attainable by an American scientist.... ...Dr. Wang, 41, becomes the 15th UT Southwestern faculty member serving on the prestigious orga...

Brain signal predicts working memory prowess

Some people are better than others at remembering what they have just seen holding mental pictures in mind from moment to moment. An individual's capacity for such visual working memory can be predicted by his or her brainwaves, researchers funded by the NIH's National Institute of Mental Health have discovered....... A key brain electrical signal leveled off when the number of objects held in m...

Lack of specific brain protein causes marked deficits in learning, memory

DALLAS April 7, 2004 A protein involved in the release of neurotransmitters in the brain is essential to learning and memory in mice, researchers at UT Southwestern Medical Center at Dallas have found.... ...A study published today in causes profound deficits in the learning process. The discovery is a major step in understanding the molecular events that underlie learning and memory comple...

Can we believe our memories?

The use of photographs by psychotherapists as memory cues for the "recovery" of patients' possible childhood sexual abuse has been called into question by a Canadian study. It found that a "staggering" two-out-of-three participants accepted a concocted false grade-school event as having really happened to them when suggestions regarding the event were supplemented with a class photo.... ...

Student creating polymers to chaperon DNA across cell membrane

Ordinarily, the cell membrane prevents invasion by foreign genetic material, which is why genetic engineers often have to use a pipette and forced air to jab a new piece of a gene through the cell wall into the genome in order to carry out gene therapy or introduce particular attributes into a crop or organism. ... ...But an undergraduate student at Virginia Tech has figured out how to chaperone...

Scientists discover why not enough choline results in fewer brain cells, poorer memory

CHAPEL HILL Five years ago, University of North Carolina at Chapel Hill researchers first reported finding that the nutrient choline played a critical role in memory and brain function by positively affecting the brain's physical development....... Differences in development influenced action, the scientists and their colleagues found. In animal experiments conducted at Duke University, both you...

Memories are harder to forget than currently thought

PHILADELPHIA While it might not seem so the next time you go searching for your car keys, scientists at the University of Pennsylvania have shown that memories are not as fluid as current research suggests. Their findings challenge the prevailing notion on how memories are stored and remembered or that a recalled memory could be altered or lost as it is "re-remembered." ... "Current theories...

Children's Memorial, TGen announce partnership

CHICAGO -- Children's Memorial Institute for Education and Research and The Translational Genomics Research Institute (TGen), of Phoenix, Ariz., today announced a partnership aimed at conducting cutting-edge genomic research into childhood illnesses and better defining their relationship to adult diseases....... The agreement partners TGen's computational and genomics technology -- ranked among t...

Flies offer clues to anesthesia-resistant memory

A fruit fly gene called radish, and the newly identified protein it encodes, have opened doors to understanding the genes and neuronal networks that govern a special type of memory, termed anesthesia-resistant memory. Researchers had previously known that for most animals -- not just humans -- loss of consciousness from anesthesia causes amnesia for recently experienced events. In contrast, for r...

Genes influence memory in families with Alzheimer's disease

ST. PAUL, Minn. Genes play a strong role in how well our memory works, according to a study of families with more than one person with Alzheimer's disease. The study is published in the February 10 issue of Neurology, the scientific journal of the American Academy of Neurology. Located in DNA and RNA, a gene is a unit of inheritance that determines one or more traits.... ..."These results are ex...

MIT team discovers memory mechanism

CAMBRIDGE, Mass. -- MIT neuroscientists have discovered a new brain mechanism controlling the formation of lasting memories. This mechanism explains how signals between neurons stimulate production of the protein building blocks needed for long-term memory storage. ......The study, which will appear in the Feb. 6 issue of the journal ......Long-lasting memories are stored in the brain through s...

Could memory performance and spatial learning be genetically based?

February 4, 2004 BETHESDA, MD As the US population ages, there is an increasing effort to understand the underlying mechanisms that contribute to learning and memory. This effort could be of critical importance to scientists trying to decipher how the molecular genetic mechanisms of learning and memory are disrupted or impaired. The results of a new study provide evidence that individual differ...

Research reveals brain has biological mechanism to block unwanted memories

For the first time, researchers at Stanford University and the University of Oregon have shown that a biological mechanism exists in the human brain to block unwanted memories.... ...The findings, to be published Jan. 9 in the journal Science, reinforce Sigmund Freud's controversial century-old thesis about the existence of voluntary memory suppression.... ..."The big news is that we've shown how...

'Mad cow' mechanism may be integral to storing memory

CAMBRIDGE, Mass. (Dec. 24, 2003) Scientists have discovered a new process for how memories might be stored, a finding that could help explain one of the least-understood activities of the brain. What's more, the key player in this process is a protein that acts just like a prion a class of proteins that includes the deadly agents involved in neurodegenerative conditions such as mad cow disease....

Researchers identify key player in respiratory memory

MADISON - By studying the "memory" of the respiratory system, a group of researchers from the University of Wisconsin-Madison have identified a key player - a protein called BDNF that's involved in learning - responsible for the body's ability to keep breathing properly, despite the challenges it may face. ......The findings, published Dec. 14 in the online edition of Nature Neuroscience, could p...

Avoid bad memories: Targeting genes and drugs

We all remember September 11, 2001, only too well; this is because our brain etches fearful memories deep into our system. This property can provide selection advantages to creatures that can learn to avoid fearful situations and improve their chances to survive in a dangerous world. However, the intensification of fearful memories sometimes charges a high toll. Patients with Post-Traumatic Stres...

Members receive distinction as fellows of agronomy society

MADISON, WI, NOV. 13, 2003 Thirty members of the American Society of Agronomy (ASA) have received the honor of Fellows of the American Society of Agronomy. The prestigious awards were presented at the 2003 Annual Meetings of ASA, held in conjunction with the Crop Science Society of America (CSSA), and Soil Science Society of America (SSSA) from Nov. 2-6, in Denver, CO. Named as Fellows are:... ....

Members receive distinction as fellows of crops society

MADISON, WI, NOV. 13, 2003 Eleven members have received the honor of Fellow of the Crops Science Society of America (CSSA). The prestigious awards were presented at the 2003 Annual Meetings of CSSA, held in conjunction with the American Society of Agronomy (ASA) and the Soil Science Society of America (SSSA) from Nov. 2-6, in Denver, CO. Named as Fellows are:... ... , Research Geneticist, USDA-A...

Don't always believe what you see, suggests study on false memories

NEW ORLEANS People can easily be swayed into believing that they have seen something they never actually did see, say researchers at Ohio State University.... ...Participants in a study looked at a series of slides portraying geometric shapes. They were later shown a second set of test slides two of the test slides contained images from the original group of slides, two contained images that we...

Multiphoton microscope observes cell membrane action

ITHACA, N.Y. -- Cell membranes -- the sacs encompassing the body's living matter -- can assume a variety of shapes as they morph to engulf materials, expel others and assemble themselves into tissues.... In the past it was possible for theoreticians only to analyze the thermodynamic forces behind membrane shape-shifting. But now a team of biophysicists from Cornell University, the National Instit...

Estrogen improves short term memory and oral reading in midlife postmenopausal women

Midlife postmenopausal women who received daily treatment with estrogen showed improved oral reading and verbal memory performance, Yale School of Medicine researchers report in the September issue of the journal Menopause. ... ..."This is the first study to specifically examine the effect of estrogen on reading ability," said principal investigator Sally Shaywitz, M.D., professor of pediatrics...
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