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Tag: "takes" at biology news

A gene's first 'kiss' sets off that affair known as puberty

... to be triggered by the brain's own version of "It takes two to tango," whereby a signal literally gets turned on by a molecule that is produced by a gene aptly named KiSS-1. The couple ?a biochemical equivalent to Adam and Eve ?makes its sudden appearance in a region of the brain called the hypothalamus ...

Timing is everything: First step in protein building revealed

...eces of the ribosome come together,and how long it takes them to fall apart under various circumstances.Their results support the idea that two separate steps take place oncethe instruction's starting point is found: first a structural change inthe ribosome complex, and then release of eIF1.Lorsch's goal i...

Sea skate experiment sheds light on human cell transport

...ne and a chemical process known as phosphorylation takes place. This activates the gates, which open to release excess water along with salts and other organic material. The researchers made their discovery by using a plant-based substance to block an enzyme that causes phosphorylation. The result: The ga...

Poplar trees redirect resources in response to simulated attack

...s going to the roots, but not the chemical form it takes there," Ferrieri said. "We will have to do more tests to see what compounds are formed." Ferrieri believes there may be an increase in compounds that resist microbial attack after plants have soaked up atmospheric carbon dioxide, therefore counterin...

Discovery of key protein's shape could lead to improved bacterial pneumonia vaccine

... binds to a molecule on thecell called pIgR, which takes antibodies from the bloodstream on oneside of the cell and transports them to the other side. There itreleases the antibody at the lining of the throat and lungs. If apneumococcus bacterium is hovering on the lining of the respiratorytract, this germ...

New comparative toxicogenomics database

... binds to a molecule on thecell called pIgR, which takes antibodies from the bloodstream on oneside of the cell and transports them to the other side. There itreleases the antibody at the lining of the throat and lungs. If apneumococcus bacterium is hovering on the lining of the respiratorytract, this germ...

UCSD researchers maintain stem cells without contaminated animal feeder layers

... For a proposed animal-free medium, the UCSD study takes advantage of a previously unidentified soluble factor this is secreted from mouse feeder layers to maintain stem cells' undifferentiated state and pluripotency, the ability to become all tissue types in the body. The scientists knew that a cocktail o...

Open microfluidic and nanofluidic systems

...y forces between substrate material and liquid and takes the ‘freedomâ€TM of contact angles at pinned contact lines into account. Such a contact line is visible in the upper right image in Figure 1. In such a situation, the contact angle is not determined by the classical Young equation but can vary over...

Scientists reveal molecular secrets of the malaria parasite

...he Science paper is important because: * The study takes an"evolutionary approach" to exploring how the Plasmodium genome hasevolved. By comparing four sequenced genomes (the human malaria P.falciparum and the rodent malarias P. yoelii, P. chabaudi and P.berghei), the scientists found that the major differ...

Jumping gene helps explain immune system's abilities

...hisprocess, the researchers say."The immune system takes an approach to protein building similar tothat of diners creating a meal at a cafeteria, but how the immunesystem's 'a la carte' process happens is still murky," says Craig.But the a la carte approach provides great diversity from a limitednumber of ...

UCSD Discovery Shows How Embryonic Stem Cells Perform 'Quality Control' Inspections

...hisprocess, the researchers say."The immune system takes an approach to protein building similar tothat of diners creating a meal at a cafeteria, but how the immunesystem's 'a la carte' process happens is still murky," says Craig.But the a la carte approach provides great diversity from a limitednumber of ...

New therapy for HIV/AIDS eliminates needles and excessive toxicity

...hisprocess, the researchers say."The immune system takes an approach to protein building similar tothat of diners creating a meal at a cafeteria, but how the immunesystem's 'a la carte' process happens is still murky," says Craig.But the a la carte approach provides great diversity from a limitednumber of ...

DNA Recombination and Repair—A New Twist to RecA Function

...ssociate from a fiber in the time—three seconds—it takes for an individual RecA molecule to burn one ATP. This implies a filament organization in which every RecA molecule hydrolyzes ATP in synchrony with the sixth RecA molecule to its left and the sixth RecA molecule to its right. The authors note that t...

Gene sequencing explains bioremediation 'bug'

...hisprocess, the researchers say."The immune system takes an approach to protein building similar tothat of diners creating a meal at a cafeteria, but how the immunesystem's 'a la carte' process happens is still murky," says Craig.But the a la carte approach provides great diversity from a limitednumber of ...

The Shapes Of Life: NIGMS Project Yields More Than 1,000 Protein Structures

... many proteins simultaneously, cutting the time it takes to determine a single protein structure from months to days. For example, a robotic arm drops protein solution into thousands of tiny wells for crystallization trials, and an imaging system quickly scans the wells looking for signs of crystal formati...

Bird Brains Show How Trial and Error May Contribute to Learning

...n bird song by manipulating this region. Learning takes some time, so Kao expected to wait for her results. But stimulating the LMAN had an immediate impact. The tune and rhythm of the basic song did not change, but a tiny burst of electricity would show up a few notes later as a change in volume or pitch...

Scientists discover that host cell lipids facilitate bacterial movement

...ell and begin the cycle anew. Essentially Listeria takes over or hijacks the host cell's actin cytoskeleton to move within cells, and to spread from cell to cell." In most cells, two membrane lipids, PIP2 and PIP3, are associated with the formation of new actin filaments. PIP3 is synthesized from PIP2 by ...

New Treatment Rivals Chemotherapy For Lymphoma, Study Finds

...ounds. A new form of treatment for lymphoma that takes a fraction of the time of traditional chemotherapy... "The results of this treatment, which essentially takes only one week to complete, rival any kind of treatment that's been used for follicular lymphoma, inc...

Self-assembled nano-sized probes allow Penn researchers to see tumors through flesh and skin

...s really going to its intended target." This work takes advantage of years of effort in the Therien laboratory focused on the design of highly fluorescent compounds. Polymersomes, which were developed by Penn professors Daniel A. Hammer and Dennis Discher in the mid-1990s, function much like the bilayered...

Potential treatments for neurofibromatosis

...ot enough neurofibromin is produced, cell division takes off and tumors develop. "It's like an engine being driven at full speed," said Dr. Clapp. To encourage development of the blood vessels they need, the tumors emit chemical signals that cause the mast cells to congregate in tissues surrounding the t...

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(Date:10/1/2014)... researchers hope to take a healthy salad up a ... of breast cancer in leafy greens. , "In the ... either by eating the salad or making a pill ... of biomedical engineering at Case Western Reserve School of ... G. Komen breast cancer organization is funding the research ...
(Date:9/30/2014)... Evidence of the environmental effects of moorland burning is ... the subject, with the aim of relieving tensions on ... , The EMBER (Effects of Moorland Burning on the ... burning on moorland, which is practised predominantly to support ... impacts on peat hydrology, peat chemistry and physical properties, ...
(Date:9/30/2014)... WASHINGTON, D.C., September 30, 2014--Sea monkeys have captured the ... of their easily observable life cycle -- sold as ... and mate given little more than a tank of ... a shorter-term pattern: Like other zooplankton, brine shrimp vertically ... conditions, coming closer to the surface at night and ...
Breaking Biology News(10 mins):Scientists wield plant viruses against deadly human disease 2Scientists wield plant viruses against deadly human disease 3Grouse moor burning causes widespread environmental changes 2Laser-guided sea monkeys show how zooplankton migrations may affect global ocean currents 2
(Date:10/2/2014)... -- Genes may interact with stress to trigger heart disease ... risk occurs in about 13 percent of people, but only ... people reduce their heart disease risk through simple measures such ... Duke University researchers said. The study authors analyzed genetic ... between variations in the EBF1 gene and higher levels of ...
(Date:10/2/2014)... HealthDay Reporter WEDNESDAY, Oct. 1, ... roses -- literally -- may face an increased risk of dying ... study of over 3,000 older Americans, researchers found those who were ... more than three times as likely to die in the next ... In fact, anosmia -- the inability to distinguish odors -- was ...
(Date:10/1/2014)... developed a model that could help to predict a ... from their very first psychotic episode. , The model ... symptoms, cognitive abilities, MRI scans of the brain,s structure, ... the lead up to World Mental Health Day (10 ... Professor Bernhard Baune , says the model is a ...
(Date:10/1/2014)... the human eye, the brain of a rat and ... technology, says a QUT leading robotics researcher. , ... says the new study uses new computer algorithms to ... or tunnels. , "This is a very Frankenstein type ... halves of a thing together because we,re taking the ...
(Date:10/1/2014)... encourages people to keep their "eyes on the prize" ... When walking, staying focused on a specific target ahead ... help people walk there faster, psychology researchers have found. ... looking around the environment naturally, offers a new strategy ... less interested in exercise if physical activity seems daunting, ...
Breaking Medicine News(10 mins):Health News:Genes May Make Some More Prone to Heart Disease When Under Stress 2Health News:Could a Fading Sense of Smell Point to Earlier Death? 2Health News:Could a Fading Sense of Smell Point to Earlier Death? 3Health News:Predicting the future course of psychotic illness 2Health News:Robot researcher combines nature to nurture 'superhuman' navigation 2Health News:Keeping your eyes on the prize can help with exercise, NYU study finds 2Health News:Keeping your eyes on the prize can help with exercise, NYU study finds 3
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