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Tag: "produces" at biology news

Loosen leash on cancer protein 'watchdog,' researchers say

...e solution could lie with another protein the body produces naturally to keep p53 in check. This other protein, called Mdm2, keeps p53 inactive until it is needed, acting like a leash on a watchdog. "p53 seems to be an important stress response gene that fights cancer when it works," Mendrysa said. "So we de...

A large step forward in the fight against African sleeping sickness

... the deadly African sleeping sickness. The disease produces severe sleep disorders that ultimately end in coma, followed by death. At present, fewer than 10% of the patients are treated in time. But on the other hand, the current treatment is also very toxic, and in many cases also results in the patient's de...

Hopkins researchers discover genetic switch that turns off an oxygen-poor cell's combustion engine

...elle that breaks down the glucose-using oxygen and produces ATP. The other does the same thing - albeit less ...g to Dang. When oxygen levels are normal, the cell produces acetyl CoA and feeds it into the TCA cycle within the mitochondrion. The mitochondrion then processe...

Plant-derived vaccines safeguard against deadly plague

...r in the School of Life Sciences. "This new system produces really high levels of antigens in relatively short periods of time." The researchers modified tobacco plants to make high levels of the plague antigens F1, V and a combination of the two, a so-called F1-V fusion antigen. All are known to be importan...

New brain hormone puts brakes on reproduction

... receptors are for GnIH, it looks like the hormone produces multiple effects in the brain," Bentley said. "In birds, the hormone not only affects reproductive hormones, but also sexual behavior in females, such as readiness to copulate." Interestingly, the neurons producing GnIH are in an area of the brain, ...

Protein finding could lead to treatment for inflammatory diseases

...y responses. The molluscum contagiosum virus that produces MC160 is a distant relative of smallpox and causes a benign, short-lived skin infection in children and sexually active young adults. It is a common disease, with antibodies detected in up to 50 percent of populations tested in numerous studies. The...

Flu not the only germ threat this time of year

... is more likely to have a runny nose, a cough that produces mucus, and wheezing. Flu is more likely to spread as an aerosol ?someone coughs and the airborne virus lands on another person, or they cough and then touch the faucet or doorknob. RSV, like the common cold, spreads mainly as large droplets via surf...

Rare Chinese frogs communicate by means of ultrasonic sound

... in China sings like a bird, then that the species produces very high-pitch ultrasonic sounds. Now scientists say that these concave-eared torrent frogs also hear and respond to the sounds. The findings, to appear in the March 16 issue of Nature, represent the first documented case of an amphibian being able...

Alternatives to the use of nitrate as a fertiliser

...dant enzymes is reflection of stress that ammonium produces in plants. Moreover, this reaction can favour the growth of plants tolerant to ammonium in another situation of added stress. The researchers have shown that tolerance to ammonium experienced in one type of pea can be extrapolated to the rest of...

Less is more, gene study shows

...r the course of evolution, humans lost a gene that produces a particular jaw muscle protein. Perhaps the loss of that gene gave us smaller jaw muscles, making room in our skulls for bigger brains. That's just speculation, and until now there was no concrete evidence for the "less is more hypothesis" that los...

Potential vaccine developed for deadly leishmaniasis disease

...oratory studies showing that the candidate vaccine produces a strong protective action against leishmaniasis, Seeberger’s group is moving on to the next step toward a leishmaniasis vaccine ?tests in animals. "To date, carbohydrates have not been used on this delivery platform," Seeberger said. "Therefore, th...

Darkness unveils vital metabolic fuel switch between sugar and fat

... One gene fired up in the dark ?procolipase, which produces an enzyme (CLPS) required for degrading dietary fat. Expression of the gene previously was thought to be restricted to the pancreas and gastrointestinal tract. Yet messenger RNA for CLPS (mClps) was found in the livers of mice exposed to prolonged ...

The evolution of food plants: Genetic control of grass flower architecture

...f the variation in form seen in the grasses. Maize produces two types of inflorescence; the tassel (male pollen-bearing flowers) and the ear (female flowers and site of seed or kernel development). The tassel forms from the shoot apical meristem after the production of a defined number of leaves, whereas ears...

Researchers release new variety of asparagus

...o be successful, we must identify a supermale that produces hybrids with good quality spears. Another current ... and the early summer of the third year, the crown produces spears, which are harvested for about 6-9 weeks. A nutrient-rich food, asparagus was cultivated fi...

Scientists design potent anthrax toxin inhibitor

...D. The spore-forming bacterium Bacillus anthracis produces a toxin that causes anthrax symptoms. Antibiotics are used to treat anthrax, but even with such therapy, inhalation anthrax, the most severe form of the disease, has a fatality rate of 75 percent. "There would be real value to having an additional f...

Hooked on fishing, and we're heading for the bottom, says scientist

... "We're in a phase where increasing fishing effort produces less catch." While global catches peaked in the late 1980s, the peak occurred earlier in those parts of the world where industrial fishing developed first. Thus, peak fish occurred in the mid-1970s in the North Atlantic, exploited by European and No...

UF scientists reveal ancient origin of vertebrate skeleton

...one, but the presence of a shared gene system that produces cartilage. This conclusion is illuminating and extremely important." ...

UF scientists reveal ancient origin of vertebrate skeleton

...one, but the presence of a shared gene system that produces cartilage. This conclusion is illuminating and extremely important." ...

Infant transplant patients resist infections that kill adult AIDS patients

...carried out in very young infants, the thymus that produces T cells is removed and a drug is given that deplet...rent kind of immune system cell, the B cell, which produces antibodies. Yet, when the Mayo researchers looked at the immune system of infant heart transplant pa...

Getting old? Slowing down? Blame inefficient mitochondria

...ion's efficiency by seeing how much electricity it produces for each unit of oxygen and fuel it burns, you can assess the efficiency of mitochondria by monitoring the amount of ATP produced for every unit of oxygen used. Researchers from various departments of the University of Washington, Seattle, compared ...

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