Tag: "various" at biology news

Catching cancer's spread by watching hemoglobin

...e of minimally invasive probes, being developed in various labs, that can be inserted in the body. Meeting Paper: CTuF1, "Two-Photon Absorption Imaging of Hemoglobin," to be presented on Tuesday, May 8, 8 a.m. ?8:30 a.m. ...

Amphibians in losing race with environmental change

...the journal BioScience. "We know that there are various causes for amphibian population declines, including UV-B light exposure, habitat loss, pesticide pollution, infections and other issues," said Andrew Blaustein, a professor of zoology at OSU and one of the world's leading experts on amphibian decline...

Students invent protective pouch to enhance cell therapy

... a pending patent, to track the microcapsules with various imaging technologies. They and researchers elsewhere have struggled, however, to keep these encapsulated cells alive within the body, mainly because the cells often situate themselves where they do not have access to a plentiful blood supply. To a...

Scientists develope a new model of artificial canine skin

...d which will allow, therefore, the carrying out of various lines of research related to skin biology and path...e interactions between the cell populations of the various layers is of vital importance for skin biology, but these interactions cannot be investigated adequa...

New host species for avian influenza identified

...stinctions between the ecology and epidemiology of various global strains of the virus. An eight-year surveillance study, which included more than 36,000 wild migratory birds tested for low pathogenic avian influenza, details new data on host species, prevalence, and temporal and geographical variation of a...

Asexual worm quickly adapts to soil contamination

... multidisciplinary approach, in which methods from various disciplines such as ecology, toxicology, molecular... her thesis Doroszuk shows that contributions from various research disciplines are crucial for insight into underlying mechanisms of the response to stress an...

Thymus transplants gives hope to babies with fatal immune disease

... year of the transplant. The deaths were caused by various infections and were not a result of the surgery itself, she said. "These babies are very frail when they get here, so it is crucial that they are nourished and supported during this period after transplant to strengthen and maintain them as their ...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...d structures that may have enhanced the hearing of various fish species during their evolution (2aAB1), and t...muscle fibers. Muscle noise can be measured using various sensors, such as microphones and even skin-mounted accelerometers. Scientists at the Scripps Instit...

Latent memory of cells comes to life

...ed nucleosomes. Importantly, nucleosomes can carry various chemical modifications that either allow, or prevent, the expression of the DNA wrapped around them. Every time a cell divides into new cells, its double-stranded DNA splits into two single strands, which then each produce a new double-strand. Nu...

Newly identified mechanism for silencing genes points to possible anti-cancer strategies

...n time. The remaining 90 percent are silenced by a various mechanisms that act to interfere with gene transcription into messenger RNA or translation of messenger RNA into protein. In a new study published online May 16 in the journal Nature, a team of scientists at The Wistar Institute and the University...

Improved predictions of warming-induced extinctions sought

...model now in common use leads the team to identify various simplifying assumptions in the models that can lead to biases. The authors make eight recommendations for improving forecasts of extinction rates under global warming. The recommendations cover a wide range, from clarifying the definition of biodiv...

Researchers develop marker that identifies energy-producing centers in nerve cells

...t on brain cell defects believed to play a role in various neurological diseases. The researchers describe ho...rescent protein could be bred with mouse models of various neurological diseases, so we could apply the ability to see mitochondria in neurons to the research ...

Stanford-led study closes in on genes that may predispose some people to severe depression

...amilies between depression and DNA markers on the various chromosomes. The linkage study identified regions worthy of more intensive examination. The second study was a more detailed look at the most suspicious of these regions, located on chromosome 15. Levinson said the team studied six DNA markers...

Noise echoes in cell communications

... experiment that can produce the same result after various attempts, in biology, one particular experiment can yield a multitude of outcomes. This randomness, however, isn't problematic, but a necessary function for survival. Until now, the role of randomness in sustaining life has been a great and unsolv...

Jefferson scientists find rabies-based vaccine could be effective against HIV

... then challenged the animals with SIV and measured various parameters of infection, such as immune system CD4 cell count, amount of virus in the bloodstream and immune system antibody response. They found that those animals that were given the test vaccine could control the infection. The control animals wit...

Scientists identify molecular cause for one form of deafness

... allowed the researchers to solve the structure of various espin-actin bundles. "As the ability of espin to cross-link F-actin is decreased by using genetically modified 'deafness' mutants with progressively more damaged actin binding sites, the structure changes from a well-ordered crystalline array of fi...

Despite their heft, many dinosaurs had surprisingly tiny genomes

...rchers had previously determined that the sizes of various cell types, across species, tend to reflect the si...ont., they were able to determine just how big the various extinct species' osteocytes had been. "These fossils let us sample species through evolutionary t...

Researchers identify gene involved in dog size

... size variation among dogs by comparing the DNA of various small dog breeds, including Chihuahuas, Toy Fox Terriers and Pomeranians, to an array of larger dog breeds, including Irish Wolfhounds, Saint Bernards and Great Danes. Their investigation found that variation in one gene—IGF-1, which codes for a prot...

Scripps research study shows humans and plants share common regulatory pathway

...proteins in plants; R proteins protect plants from various pathogens. The study also confirms structural simi...is or programmed cell death. Despite the fact that various models of Nod1 activation have been described, little has been known about other proteins that might...

Type of stem cell found to reside in transplanted lungs

...help with the rejection of donated organs and with various kinds of lung disease. The study by University o...MSCs derived from bone marrow in the expression of various genes, which makes us believe that they are specific to the organ they are isolated from." The st...

1 2 3 4 5 6 7 8 9 10