Tag: "mechanisms" at biology news
Harvard, Duke Researchers Discover 'Off-switch' Inside Human Cells
...tivate one of the cell's most prevalentbiochemical mechanisms
for responding to chemical stimuli such as hormones. The scientists believe their basic discovery could eventually lead to newways to "turn off" cancer cells, whose growth is out of control.The finding also may offer a fundamentally new route to reg...
Six-Year Drilling Project to Uncover One Million Years of Earth History
...t, which will study formation of volcanoes and the mechanisms
that operate within Earth's mantle," says Leonard ...f volcanic activity that have occurred, and mantle mechanisms
that produce Hawaii lavas. Other studies will explore types of volcanic hazards that occur over the...
UC Berkeley, U.S.G.S. Scientists Discover Microscopic Invader Of San Francisco Bay, The First Known Marine Microbe Invader Of U.S. Waters
...g ships is probably one of the most common current mechanisms
by which species travel from port to port today, Cohen says. Over 68 million gallons of ballast water are released by ships in San Francisco Bay annually, yet there currently is no regulation of such dumping to prevent invasions by exotic species....
Northwestern Scientists Discover How Herpes Simplex Virus Infects Cells
..., including nerve cells, and defining the relevant mechanisms
ofentry into different human cells....
Study Examines How Mechanisms Evolve To Regulate Bee Development
...ment. The findings shed evolutionary light on the mechanisms
that regulate behavioraldevelopment in the drones'...n attempt to gaininsight into the evolution of the mechanisms
involved in the division oflabor. While drones do not participate in the division of labor, they dou...
New Finding Suggests "HATs" Are Key To Gene Activation Puzzle
...velopment. Scientists have proposed many different mechanisms
for how genes are turned on. Our finding provides strongsupport for one of these mechanisms." During much of its lifetime, the seven feet of DNA that resides in each of our cells exists in an inactive, tightlypacked form known as chromatin. Beca...
U.S. Geological Survey 1998 Budget: Increased Support For Drinking Water, Earthquakes And Biological Sciences
...rposes such asdetermining the magnitude and source mechanisms
for potentially damagingearthquakes worldwide. The USGS is also refocusing $1.2 million of geographic research andapplication funds to support urban dynamic investigations in fourmetropolitan regions: New York, Chicago, Philadelphia, and Portland. ...
Stronger Evidence That Global Climate Change Can Reduce The Variety Of Life
...l ice sheets expand in size(low tilt). The mechanisms
that cause diversity to change are still unclear butCronin and Raymo propose that changes in solar radiation initiate a chainreaction that reduces the productivity of surface ocean planktoncommunities. This in turn leads to less food resources settli...
Ten Years of Progress For Superfund Basic Research Program
...rfindings concerning the molecular and biochemical mechanisms
ofdegradation and the mutagenesis of toxic metals. Kathleen Dixon,associate professor and associate director of the department ofenvironmental health, will discuss her findings on the mutagenicmechanisms of chromium. She has looked at the links betwe...
University Of Washington Discovery May Point The Way To New Treatment For Hepatitis C Cases That Do Not Respond To Interferon Therapy
...es. "This discovery explains the molecular mechanisms
for interferon resistance, and points the way to a...s, HIV, polio and a host of others -- have evolved mechanisms
to resist the effects of interferon, one of the body's first lines of defense against viruses," said...
Researchers Find Production Point Of Key Protein In Fragile X Syndrome
... Fragile X Mental RetardationGene in 1991, but its mechanisms
remained a mystery. The Fragile X Mental Retardation Gene is carried by mothers and passedon to sons. One in every 1,000 women is believed to carry the defectivegene; about one in every 2,000 males is affected. Telling physical featuresinclude a lon...
Huntington's Disease Findings Pave Way For Potential Cure
...unprecedentedclarity. The cellular and biochemical mechanisms
they have discovered could be astarting point for the development of new drugs that could interrupt theprogress of Huntington's disease or prevent it in people at risk. The gene for Huntington's disease (HD) was discovered in 1993 throughthe ...
Vitamin C Deficit Linked To Skin Disease
...tioxidant vitamins play a role in human health,the mechanisms
are poorly understood," said Peter Sinclair, a VA researcher andresearch associate at Dartmouth Medical School. "This study may lead us to anunderstanding of how vitamin C behaves in a particular disease." It is still unclear whether a deficiency of ...
Jefferson Scientists Find Potential Deadly Effects Of Two Missing Cancer-Suppressor Genes
...believes that by getting a better handle on the mechanisms
by which these genes actually can affect female...ons, often helping scientists understand cancer mechanisms
and develop effective therapies. The researchers found that male knockout mice died from ca...
Scientists To Study Effects Of Global Warming On Wetlands
...r temperature, and this project will determine the mechanisms
and quantitative effects of that phenomenon. In turn, temperature does have a strong effect on many ecosystem processes." Chen said previous studies have raised the possibility that globalwarming might result in a lack of physical energy for ...
UT-Houston Awarded $2.5 Million For Scleroderma Research
... factors underlyingscleroderma; elucidation of the mechanisms
of collagen regulation, leading tothe skin tightening; and a large survey of epidemiologic and genetic factorsthat may determine, or help physicians predict, disease outcomes in severaldifferent ethnic groups. While potentially devastating, ...
NIDR Supports Total Genome Studies Of Major Oral Pathogens
... will be instrumental in understanding the genetic mechanisms
responsiblefor virulence and drug resistance in th...ation willprovide valuable insights into the basic mechanisms
used by these bacteria todestroy human tissues. Sequencing the Aa genome will also contribute to the...
Testosterone And Working Memory; Epilepsy And Schizophrenia; Toxins And Neuron Death; Oregon Researchers Present Findings At Society For Neuroscience
...ealth Sciences University are shedding light onthe mechanisms
by which a plant toxin called cycasin causes neurodegenerativedisease. Their findings suggest that environmental toxins that damage the DNA ofnerve cells may precipitate neurodegenerative diseases such as Alzheimer's,Parkinson's, and amyotrophic late...
Colorado State Scientists Tackle Genetic Makeup Of Obscure Bacteria
...in of the bacteria tocircumvent the body's defense mechanisms
and cause disease and the other strainto not cause disease and be receptive to drugs. By pinpointing what chemicalreactions or molecular processes within the bacteria allow it to thrive,researchers can develop drugs that turn off those reactions and ...
Autoimmunity Gene Discovered
...erable implications in the understanding of the mechanisms
of destructive autoimmune response. The disease studied by the two groups is called APECED for autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy The disease is mostly found in certain isolated populations such as among ...
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