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Tag: "highly" at biology news

Prenatal Stress Keeps Infants, Toddlers up at Night, Study Says

...r babies. For them, sleep ranks as one of the most highly regarded indexes of healthy development, and plays a critical role in consolidating memory and facilitating learning, regulating metabolism and appetite, promoting good moods and sustaining both cardiovascular health and a vigorous immune function. ...

Identified main genetic variants involved in response to HIV

...Ps. Hence, a good knowledge of these variations is highly valuable for the determination of the progression of AIDS. During the present study, obtained genetic data was compared to blood virus load in patients during the first two years after the infection, and also to the rhythm of immune degradation as ...

Agent slows aging in mice

...something that is harmless in mice turns out to be highly toxic for people,” Miller cautions, adding that the Food and Drug Administration doesn’t evaluate the safety of such herbal remedies....

In mice, drug protects against diabetes and atherosclerosis

... one experiment, mice genetically engineered to be highly susceptible to atherosclerosis were fed high-fat diets and assigned to receive the drug or an inert substance. One set of mice was put on a high-fat "western" diet at five weeks of age; half received the inhibitor drug. A second group of animals ate ...

Brightening prospects of using fluorescent nanotubes in medical applications

...hod that can successfully produce large batches of highly fluorescent nanotubes. “Nanotubes have a number...cent tagging technology, contain cadmium, which is highly toxic, and so may not be appropriate for “in vivo” applications. Nanotube fluorescence is extrem...

'Lucky 13' as new gene discovery offers further hope for childhood blindness

...receptor cells as they are long, thin cells with a highly evolved structure on one end (the outer segment) which detects light and sends signals to the brain, a function requiring a large amount of energy. "LCA is usually a disease where protein function has been lost completely, but carriers of just one...

Undergraduate research shows leaderless honeybee organizing

...arkable for living in large organized groups where highly developed social behaviors coordinate the efforts ... got to the same point as humans – living in these highly organized societies that function with remarkable efficiency -- but they are organized so differen...

Study shows lizard moms dress their children for success

... lizards' main predator, the coachwhip snake, is a highly efficient hunter, and the lizards need just the ri...n side-blotched lizards. Orange-throated males are highly aggressive and usurp territory from other lizards; yellow-throated males sneak into the territories ...

Progress toward an antitumor vaccine

...ructures that make suitable anchors are themselves highly immunogenic, which can suppress the immune response against the true target, the glycoprotein.” This team has now found a good anchoring technique: Their anchor is a thioether (two carbon atoms coupled together through a sulfur atom). To this end,...

Microbes at work cleaning up the environment

...onsin. The team found that organic nitrogen was highly concentrated in all of the zinc-sulfide aggregates, indicating a high protein or polypeptide content relative to inorganic zinc-sulfide minerals. In combination with the other techniques and experiments, the team concluded that the protein caused the...

Nurtured chimps rake it in

...ted chimpanzees may be better at learning within a highly social, interactive context because they have heightened attention to the actions of others.” ...

Exploring the dark matter of the genome

Not so long ago, the difficult-to-sequence, highly repetitive, gene-poor DNA found in regions of chromosomes known as heterochromatin was called "junk." Like dark matter in the universe, the true nature of heterochromatin was unknown. Now members of the Drosophila Heterochromatin Genome Project (DH...

Research finds that circadian rhythms dominate all life functions

... genes in different organs is a very important and highly specific part of gene function. In addition, genes can oscillate with different amplitude -- the swing between the highest and the lowest point. Genes are expressed at very different levels, but most of them have the same relative change throughou...

The kapok connection -- Study explains rainforest similarities

...rch provides vital information for one of the most highly threatened areas of the planet, tropical rainforests," said Sam Scheiner, program director in NSF's Division of Environmental Biology, which funded the research. "In order to plan for and mitigate global climate change, we need to understand the hist...

Potato wart eyed as risk to potato production

...prevent than it is to control," Franc said. "It is highly critical that we prevent the introduction of the potato wart pathogen to production areas, and, where it is already introduced, to limit its spread," he said. "While regulatory action is important in potato wart management, it is essential that r...

Reconstructing the biology of extinct species: A new approach

...s category of movement. The results revealed a highly significant statistical relationship between the radius of curvature of the semicircular canals and the species' habitual way of moving. More acrobatic species consistently have semicircular canals with a larger radius of curvature than do slower-mo...

Turn-ons and turn-offs for neurons

...ch is an important step in both the development of highly reliable gene-switches for experimental neuroscience and in our understanding of mechanisms governing gene regulation in the brain. Indeed, the epigenetic mechanisms in charge of switching genes “on” or “off” play an essential role when our brain lea...

Male circumcision overstated as prevention tool against AIDS

...ulation. Prostitute communities are typically very highly infected with the virus themselves, and because of...ol the epidemic. The reason is that individuals in highly infected countries have multiple contacts with the infected so reducing transmission rates only defe...

Ice Age extinction claimed highly carnivorous Alaskan wolves

...onian-led team of scientists has added one more: a highly carnivorous form of wolf that lived in Alaska, north of the ice sheets. Wolves were generally thought to have survived the end-Pleistocene extinction relatively unscathed. But this previously unrecognized type of wolf appears to have vanished witho...

Understanding why C. difficile causes disease -- it's hungry

... cases in a representative sampling in Quebec. The highly virulent strain has a much higher toxin production which leads to more destructive and deadly disease, says Vivian Loo of McGill University. Sonenshein is studying a five-gene region of the bacterium’s chromosome known as the tcd locus. Two of...

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