Tag: "maintaining" at biology news

'Mad cow' mechanism may be integral to storing memory

...b, was surprised to find that a protein related to maintaining long-term memory contained certain distinct prion signatures. The protein, CPEB, resides in central-nervous-system synapses, the junctions that connect neurons in the brain. Memories are contained within that intricate network of approximately 1 tril...

Linking the immune system with lipid metabolism

...enous human lipids seem to bind to CD1 as a way of maintaining normal bodily homeostasis. A few years ago, Teyton was asking how the body loaded natural lipids onto CD1 molecules. He realized that there would have to be another protein inside cells that would transfer the lipid to the CD1 molecule, and...

Governing commons still a struggle, but fight not without hope, according to new report

... threats of resource degradation by developing and maintaining self-governing institutions. While these institutions have not always succeeded, neither have Hardin's preferred alternatives of private or state ownership," the authors write. The authors argue that governing the commons will always be a struggle, a...

Use of new direct thrombin inhibitor may be as effective as current standard treatment

...cing venous thromboembolism while at the same time maintaining their quality of life without the interruptions that monitoring often incurs." Thrombosis, or more specifically deep vein thrombosis (DVT), is a dangerous medical condition in which the formation of a blood clot blocks circulation in the deep v...

Scientists uncover novel role for estrogen in bone marrow

...entists have discovered a new role for estrogen in maintaining health. Drs. Yuka Nagata and Kazuo Todokoro report in the December 1 issue of Genes & Development that the most abundant form of naturally occurring estrogen, estradiol, triggers the formation of blood platelet cells. This discovery has important cli...

Squirrel invasion sows seeds of change for future forests

...of the central hardwoods forest depends in part on maintaining a healthy gray squirrel population - not on college campuses, but in forests. To achieve that goal, Swihart suggests making simple changes in land-use practices. "We need to recognize that the extent to which we've altered the landscape so far has re...

Study unearths cliques in the food web

...bility in ecosystems. "Stability is important for maintaining ecosystem health, andcompartments may strengthen d...rch, we may find thatmanagers should also focus on maintaining compartments in food webs,which are whole groups of species, not just maintaining the populationof a...

Some re-established elk herds lack genetic diversity of ancestors

...FAYETTE, Ind. - Continued monitoring is central to maintaining genetic diversity, which is the key to long-term success of animal reintroduction programs, according to research at Purdue University. A team of researchers found that elk relocated to depleted areas lost significant amounts of diversity when only a...

JCI Table of Contents, November 3, 2003

...ort indicates that SCF plays a significant role in maintaining and reestablishing the health of the liver. TITLE : Stem cell factor restores hepatocyte proliferation in IL-6 knockout mice following 70% hepatectomy AUTHOR CONTACT : Lisa Colletti University of Michigan Medical Center, Ann Arbor, Michigan, USA....

Wolves are rebalancing Yellowstone ecosystem

...s into Yellowstone National Park may be the key to maintaining groves of cottonwood trees that were well on their way to localized extinction, and is working to rebalance a stream ecosystem in the park for the first time in seven decades, Oregon State University scientists say in two new studies. The data show ...

Young cancer researchers honored

...eplication. Proper DNA replication is essential to maintaining the integrity of the genome, and loss of this integrity can lead to cancer. Working primarily with yeast, Dr. Diffley has studied how replication begins, the mechanisms that ensure replication is triggered only once during each cell cycle, and what h...

Duke commits to enhance Primate Center

...tional programs that the university will commit to maintaining and enhancing the center for the foreseeable future. The center is the world's only research and education center devoted to prosimians and comprises the world's largest collection of endangered primates. Provost Peter Lange said that he and Vice Pro...

Exercise and healthy weight delay cancer even among women with highest genetic risk

...y lifestyle, getting regular physical activity and maintaining a healthy body weight are important for all aspects of health and well-being in all women, but it is reassuring to know that a healthy lifestyle can help postpone cancer onset in women with a strong inherited predisposition to this disease," Gralow s...

How many fish in the sea? Census of Marine Life launches first report

...Understanding life for salmon at sea may be key to maintaining their populations. The Census is creating an underwater observation system that will enable tracking of tagged salmon and marine animals anywhere on the continental shelf. Attached to the dorsal fins of three species of Pacific sharks are electro...

JCI table of contents, 15 October, 2003

...multifunctional cells that play important roles in maintaining blood pressure, clotting, the immune response, and...lin and a link between the intestine and kidney in maintaining a balance of sodium in the body. In an accompanying commentary, Leonard Forte from the University of...

Highlights of the October 2003 Journal of the American Dietetic Association

...related nutrients, should be an important goal for maintaining or improving bone health for women of all ages. "To help prevent osteoporosis and low bone mineral density, women should make physical activity a regular part of their daily routines and consume the recommended daily 1,000 milligrams of calcium," s...

Scientific study of twins shows forgiveness has genetic component

...ated to facilitating research for personal health, maintaining relationships, peace among nations and biological connections with primates. The research is funded by grants from the John Templeton Foundation, the Fetzer Institute and donations to the Campaign from individuals and family foundations. The Campaign...

New book says Northwest salmon could face same fate as those in Northeast, England

... to meander back and forth, flooding naturally and maintaining salmon habitat. But, he contends, a decision on how to proceed should come from weighing all of the options, not by waiting until there are no options left. "We could decide that we don't want to have salmon in the region, or that we just want to h...

JCI Table of Contents, 1 October, 2003

...ation. The study identifies a new role for PI3K in maintaining the levels of betaARs in the heart and that betaAR dysfunction may be involved in the development of heart failure. The results suggest that inhibition of betaAR-localized PI3K activity may be a novel therapeutic strategy for the restoration of betaA...

Nasal contribution to breathing with exercise: The effect of race and gender

...xercise at three increasing workloads (in W) while maintaining a pedal rate of 6070 rpm. Each workload trial lasted 5 min. The maximum of the three workloads did not exceed a heart rate of 170 beats/min. By linear extrapolation of the workload-heart rate relationship to each subject's age-related predicted maxim...

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