Tag: "living" at biology news
Ancient Etruscans were immigrants from Anatolia, or what is now Turkey
...samples from three present-day Italian populations living
in Murlo, Volterra, and Casentino in Tuscany, central Italy. We already knew that people living
in this area were genetically different from those in the surrounding regions, he says. Murlo and ...
Mutating the entire genome
...print The genome is the genetic blueprint of a living
organism. It is made of deoxyribonucleic acid, or ...to make body parts and carry out most functions in living
organisms. Genes typically have 50,000 base pairs but can range in size from a few thousand to 300,0...
454 sequencing identifies HIV drug resistance at early stage
...have died from AIDS and over 42 million people are living
with HIV/AIDS worldwide. In the U.S. alone, 40,000 new infections occur each year. ...
Ultra deep sequencing identifies HIV drug resistance at early stage
...have died from AIDS and over 42 million people are living
with HIV/AIDS worldwide. In the U.S. alone, 40,000 new infections occur each year....
Marine phytoplankton changes form to protect itself from different predators
...cal signals affected the percentage of Phaeocystis living
in colonies or as solitary cells. Finally, they examined whether this response affected how much the predators ate to determine if the change conferred a survival advantage. We found that these organisms were making the right choice, Hay said. Th...
LIAI researchers identify a potential role for retinoic acid in autoimmune and inflammatory diseases
... We found that you can control inflammation in a living
animal with retinoic acid or you can treat cells with retinoic acid in a test tube and transfer them to the organism to suppress inflammation in vivo, said Dr. Cheroutre. This may offer an important new avenue for treatment of autoimmune diseases li...
University of Washington researchers play leading role in major study of human genome function
...a molecular bloodhound. When it is injected into a living
cell, the enzyme seeks out regions of unfolded chromatin that correspond to functional elements. By mapping where the DNaseI traveled, the researchers created a high-resolution map of chromatin structure that pinpointed the locations of thousands of ...
NIH awards nearly $21 million to fund cutting-edge research equipment
...imore, to enable the study of calcium signaling in living
cells, as well as investigations involving neurona...gnaling at high temporal and spatial resolution in living
cells, as well as investigations involving neuronal and brain slice imaging. University of Texas ...
Study helps preserve Arctic whale, Eskimo subsistence hunt
...s, and the discovery of stone spearheads lodged in living
whales indicates that some pre-date the whaling era. Despite being the most-studied baleen whale, much remains a mystery. Terms of the quota state that 51 bowheads may be hunted by the member villages of the Alaska Eskimo Whaling Commission, which ...
Undergraduate research shows leaderless honeybee organizing
...cology. Like humans, honeybees are remarkable for living
in large organized groups where highly developed s...lutionarily, they got to the same point as humans living
in these highly organized societies that function with remarkable efficiency -- but they are organ...
Researchers shed light on shrinking of chromosomes
...researchers led by Jan Ellenberg at EMBL looked at living
mammalian cells to find out how and when chromosomes shorten during cell division. Condensation begins early, when the cell starts preparing for division, and the chromosomes become shorter and shorter until they are about to separate and migrate tow...
Boosting key milk nutrients may protect against cancer
...acebo. With an estimated 10.5 million Americans living
with cancer, researchers on a quest for new means to prevent or delay the occurrence of this deadly disease are encouraged by these findings. This is the first clinical trial to show that boosting vitamin D status can affect the overall risk for c...
Scientists propose the kind of chemistry that led to life
...anged in the process. Catalysts are very common in living
systems as well as industrial processes. Many researchers believe the first primitive catalysts on earth were nothing more complicated than the surfaces of clays or other minerals. In its simplest form, the model shows how two catalysts in a solut...
Now playing -- Cell migration LIVE!
...ctly observe cell migration -- in real time and in living
tissue. In a report in the June 5 issue of Developmental Cell, the scientists say their advance could lead to strategies for controlling both normal growth and the spread of cancer, processes that depend on the programmed, organized movement of cells...
Hormone that signals fullness also curbs fast food consumption and tendency to binge eat
... eating and resist the drive to overeat even while living
in todays environment where access to high-caloric food is abundant every day. While this research is promising, it appears pramlintide will produce only modest weight loss, probably around 8%, before reaching a plateau. Amylin Pharmaceuticals cli...
Malaria and Epstein-Barr virus linked to pediatric cancer in Africa
... risk of Burkitt lymphoma development for children living
in malaria-endemic areas....
Lack of sun does not explain low vitamin D in elderly who are overweight
...ther populations, such as young people, or elderly living
in different climates. However, if low vitamin D stores are not attributed to low sunlight exposure in this population, it suggests that we should explore other possibilities, says Harris. The most likely explanation seems to be that vitamin D is seq...
Dartmouth professor makes case for ethically universal stem cell lines
... deriving hESC lines in ways that avoid destroying living
human embryos. The paper, published in the June 2007 issue of Nature Reviews Genetics, considers six current approaches: altered nuclear transfer, parthenogenesis, single-blastomere biopsy, somatic-cell dedifferentiation, the use of dead embryos, and...
Pesticides choke pathway for nature to produce nitrogen for crops
...specific receptors (NodD) inside rhizobia bacteria living
in root nodules in the soil. Rotation legume crops such as alfalfa and soybeans require such interaction to naturally replace nitrogen levels that, in turn, benefit primary market crops like corn grown after legume rotations. Legume plants secrete ...
SNM advances professional definition for 'molecular imaging'
... molecular and cellular levels in humans and other living
systems. The definition further elaborates: Molecu..., characterize and measure biological processes in living
systems. Both endogenous molecules and exogenous probes can be molecular imaging agents. Molecular...
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