Tag: "source" at biology news
Potentially harmful fluoride levels found in some instant teas
...most popular drinks in the United States, may be a source
of harmful levels of fluoride, researchers at Wash...stant tea had not been recognized as a significant source
of fluoride. According to Whyte, the findings could aid in the diagnosis and treatment of patients w...
Enzyme, lost in most mammals, is shown to protect against UV-induced skin cancer
... against skin cancer. Ultraviolet light is a known source
of damage to our DNA, but under normal conditions humans and other mammals are capable of removing UV-induced DNA damage by a DNA repair mechanism called nucleotide excision repair. Insufficient repair of UV-induced DNA damage, which for example may ...
Molecular probes for biology research and drug discovery
...ant libraries of chemical compounds. An additional source
for molecular probes is the isolation or chemical total synthesis of "natural compounds". These are generally complex molecules synthesized by animals or plants and have been optimized for a specific purpose over a period of millions of years via an ...
Calcium may protect women from cancer
...lmost double that observed for calcium from either source
by itself. The results of the study appear in this...t the risk reduction was present regardless of the source
of the calcium, and that simultaneously consuming high levels of calcium from both diet and suppleme...
Indiana University scientists' research success puts Indiana in new stem cell business
...helped the founders arrange financing. The primary source
of startup capital came from an "angel" investor who does not wish to be identified, Yoder said....
Rice genome approaches completion
... individual gene duplications provide a continuous source
of raw material for gene genesis and very likely contribute to the differences between members of the grass family. Now the challenge is to use the rice sequences as a basis for detailed genetic analyses of additional cereal crops and for the develop...
JCI table of contents
...d that a role for organelles inside of cells "as a source
of signals that drive early events in B cell development is now beginning to emerge." TITLE: The unfolded protein response sensor IRE1 alpha is required at two distinct steps in B cell lymphogenesis AUTHOR CONTACT: Randal J. Kaufman Howard Hughes M...
Beer-drinking rats count calories better than many people, UF researchers say
...s think of alcoholic beverages as a drug, not as a source
of nutrition, Rowland said. Since then, researchers have studied caloric compensation in humans and in animals, noting that rats instinctively manage their weight by not eating as much when they receive calories from alcohol. Scientists believe peopl...
Transgenic plants remove more selenium from polluted soil than wild plants, new tests show
...ium," said Terry. "Farmers would love to have this source
of selenium." Other co-authors of the study include Danika L. LeDuc, a post-doctoral researcher at UC Berkeley's Department of Plant and Microbial Biology, Elizabeth A.H. Pilon-Smits, associate professor of biology at Colorado State University, and ...
Flocking together: Study shows how animal groups find their way
... have a preferred direction, as if aware of a food source
or other valued destination. These animals were instructed to balance their desire to move toward their goal with their desire to stay in the group. In repeated simulations, it required only a few individuals with specific goals to set hundreds of ot...
Study finds direct association between cardiovascular disease and periodontal bacteria
...igator is Dr. Desvarieux. The study, which is the source
of the paper published this week in Circulation, will monitor the oral and cardiovascular health of a large, racially mixed group of people. All enrollees in the study live in a northern section of Manhattan in New York City and are age 55 or older....
Gene therapy for Parkinson's disease moves forward in animals
...mine depletion and transferred a gene to provide a source
of L-dopa production into the animals' striata. Before receiving the treatment, all animals had limited use in their left paws. After treatment, the animals receiving the therapeutic enzyme mixture show complete recovery in their paws. Researchers sa...
New stem cell source could boost bone marrow success
...ty of Toronto researchers have discovered an ample source
of stem cells in an uncharted part of the umbilica... supply in a short amount of time. This expandable source
of progenitor cells could greatly improve bone marrow transplantation, a painful yet common procedur...
Rat brain's executive hub quells alarm center if stress is controllable
... prefrontal cortex has also been implicated as the source
of an "all clear" signal that quells fear in rats.* To find out the role of the medial prefrontal cortex, Maier's team chemically inactivated it in rats that were learning to control a stressor. The animals showed the same brainstem activation and, e...
The BIOS Initiative - open source biotechnology is born
...et Inc( www.collab.net ). In the tradition of open source
software, BioForge makes it possible forscientists to work together to craft new, deliverable technologies within a "protectedcommons". "BioForge is a hands-on, evolving tool kit to make things happen. BioForge is about sharingcapabilities and buildi...
Study links Ebola outbreaks to animal carcasses
...this risk in communities where bushmeat is still a source
of sustenance and continued monitoring of wildlife in the region. We have identified a 'win win' opportunity by using this information to both protect endangered apes from illegal hunting and to protect humans from deadly outbreaks." The paper provi...
X-rays have become laser-like
... the discovery of lasers - of a compact laboratory source
emitting X-rays in one direction in a laser-like beam. Such a source
would permit X-ray images to be recorded with far higher resolution at vastly reduced dose levels, a...
'Blips' in HIV treatment are not cause for alarm
...stance based on their considerations of the likely source
of the blips. "We had shown that there is a latent...to spit out low levels of virus. This is a likely source
of low levels of virus in the blood, rather than ongoing viral replication, which might lead to drug...
Novel sulfide-binding mechanism found in deep-sea tubeworms
...for capturing or digesting food. Their only known source
of nutrition comes from internal bacteria, which, in turn, rely on the worm's hemoglobin for both sulfide and oxygen. The unusual form of hemoglobin gives the worms an advantage over other organisms competing for space near the vents and may play a ...
Scientists rid stem cell culture of key animal cells
...mouse-derived "feeder" cells, long thought to be a source
of potential contamination for the therapeutically promising cells. The new findings, appear today (Feb. 17) in the journal Nature Methods and come on the heels of a recent University of California study showing that existing stem cell lines are alre...
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