present 2 8

Tag: "present" at biology news

Microbes compete with animals for food by making it stink

... during our lab test processes or maybe a chemical present in a very small amount that we failed to identify. There's uncertainty about this." What's certain is that microbes are an omnipresent part of the ecosystem, Hay said. "They are not passively waiting on the bottom of the marsh floor for the rest o...

ASU researchers test antibacterial effects of healing clays

...tion depending on the kinds of waters and elements present when it was formed. It is this interlayer where much of the elemental variability between clays can be found. And the interlayer surface area is huge (greater than 100 square meters per gram of clay ?bigger than a football field). As a result, surfac...

Gene key to taste bud development identified

...rther studies, Hogan said, confirmed that SOX2 was present in high amounts during the development of taste buds. In another set of experiments, Hogan's team used another variant of the mouse strain made by Pevny in which the SOX2 gene was altered to produce only low levels of SOX2. In these animals, the st...

Key to zebrafish heart regeneration uncovered

... ability to regenerate damaged heart tissue may be present in all vertebrate species, but that for unknown reasons, mammals have "turned off" this ability over the course of evolution. Zebrafish could provide a model to help researchers find the key to unlocking this dormant regenerative capacity in mammals,...

Proteins may predict lung transplant rejection

...ty of Minnesota, Minneapolis. The researchers will present the study during a poster session at the upcoming conference, "Physiological Genomics and Proteomics of Lung Disease," in Fort Lauderdale, Nov. 2-5. The American Physiological Society is presenting the conference. The researchers used the power of...

One-of-a-kind imaging probe reveals secrets useful for drug discovery

...ey discovered compounds not previously known to be present in these animals, as well as chemical differences in secretions from the same walking stick at different times. Notably, they found a high concentration of glucose, a simple sugar and vital cellular fuel. "Glucose is an expensive molecule to spray a...

Lungs try to repair damaged elastic fibers

..., Vancouver, British Columbia. The authors will be present their findings Nov. 3 at The American Physiological Society conference "Physiological Genomics and Proteomics of Lung Disease." The researchers found that synthesis of elastin, a gene linked to elastic fiber growth, is increased in the moderately ...

Molecular atlas provides new tool for understanding estrogen-fueled breast cancer

...ctober issue of Nature Genetics, the investigators present the first complete map of the molecular "control panels" -- stretches of DNA that turn genes on and off -- operated by the cells' estrogen receptor, the master regulator of cell growth in the most common form of breast cancer. The map, which includes...

Mutant gene causes severe kidney disease in infants

...developing normally in the embryo, so defects were present at birth. A milder mutation seemed to interfere wi.... None of the seven different PLCE1 mutations were present in the 138 control subjects in the study. All 12 children developed symptoms of nephrotic syndrom...

Chronic jet-lag conditions hasten death in aged mice

...kward. Schedule "advancers" did more poorly in the present experiment than did "delayers." Notably, the researchers found that chronic stress--as measured by daily corticosterone levels--did not increase in the old mice experiencing the light-cycle shifts. The underlying cause of the increased mortality i...

'Killer' B cells provide new link in the evolution of immunity

...sh, to the more advanced, adaptive immune response present in humans and other mammals. The finding, which appears in the online version of the October issue of Nature Immunology, represents an evolutionary step for the mammalian immune system and offers a potential new strategy for developing much-needed ...

New gene linked to bipolar disorder

...ptibility to the disorder. This gene appears to be present in around 10 per cent of bipolar disorder cases. Previous studies of families have already shown that there are multiple genetic subtypes of the disorder, but progress in identifying the exact genes responsible has been slow because groups of familie...

Hundreds of thousands of viral species present in the world's oceans

...etagenomic study of the diversity of bacteriophage present in water samples collected from 68 sites over 10 y...versity with greater than 91% of DNA sequences not present in existing databases. Angly and colleagues analyzed the distribution of marine phages among the ...

Molecular 'marker' on stem cells aids research, perhaps therapies

A sugar molecule present on embryonic stem cells also has been found on the...ies also suggest that the SSEA-4 molecule might be present in other tissues, leading to the intriguing possibility that the SSEA-4 molecule could be a marker f...

Einstein researchers demonstrate a novel approach to treating AIDS

...ing majority of HIV-1-infected cells in humans are present in the spleen and other lymphoid tissues; and the absence of an immune system meant the mice could not mount an immune attack against the "foreign" human white blood cells.) One hour later, the mice were injected with the radioactive antibodies. ...

Compound eyes, evolutionary ties

...eins needed to form these light gathering units is present in the visual system of fruit flies, house flies and other insects with open eye systems, but conspicuously absent in beetles, bees and other species with closed systems. The researchers showed that the loss of this protein, called "spacemaker," can ...

Vanishing beetle horns have surprise function

...olution, Indiana University Bloomington scientists present an entirely new function for the horns: during their development, Onthophagus horned beetles use their young horns as a sort of can opener, helping them bust out of thick larval shells. The finding will surprise anyone who assumed hornless Onthop...

A valuable fly for research into disease

...his animal system, will meet for the first time to present and discuss their research. The conference, to be ...oss Cagan, from the University of Washington, will present his recent research on a drug that has a direct effect on tumour progression. Cayetano González, fro...

A silent pandemic: Industrial chemicals are impairing the brain development of children worldwide

...regulations that require a high level of proof. At present in the U.S., requirements for toxicity testing of chemicals are minimal. "The human brain is a precious and vulnerable organ. And because optimal brain function depends on the integrity of the organ, even limited damage may have serious consequenc...

Ghengis Khan wonder berry could conquer heart disease

...n red wine, 50% of flavonoids and 70% of vitamin C present in the pulp of the red berries. Antioxidants in the berries inhibit so-called 'bad' LDL cholesterol oxidisation, which could provide a new weapon to fight cardiovascular disease. When LDL cholesterol is oxidized, it sticks to the lining of blood ...

1 2 3 4 5 6 7 8 9 10