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Tag: "try" at biology news

Womb needed for proper brain development

...he findings indicate further research is needed to try to understand what mechanisms in utero are missing after birth that are essential for the normal process of neuro development. When a fetus's brain is developing during pregnancy in utero, very little patterned sensory stimulation reaches the brain,...

Penicillin, amoxicillin: Step aside for strep throat treatment

...ul drug. In the case of throat infections, doctors try to preserve their strongest antibiotics for the most severe cases. But most doctors would view a drug that fails in one out of four patients, as penicillin does in strep cases, as unacceptable, Pichichero said. To understand why the older drugs don'...

Scientist uses form to explain function of key building blocks of life

...ain changes in protein function. "In science, you try to build theories that will explain the properties of the systems you are looking at," explains Markley. "Proteins are the basic building blocks of life, and are coded for by the genes in DNA. We'd like to be able to start with a gene sequence and p...

The bioweapon is in the post

...ctober, p 16). In theory, a terrorist group could try to emulate the latter feat, or create a virus such as Variola major, which causes smallpox. However, the Variola genome comprises some 190,000 base pairs of DNA, and while somecompanies will make sequences 20,000 or more base pairs long, an attempt t...

Bats use touch receptors on wings to fly, catch prey, study finds

...ly when following a straight path, but when they'd try to take a sharp turn, such as at the corner of a room, they would drop or even jump in altitude, sometimes erratically. When the hairs grew back, the bats resumed making turns normally. "It was obvious they had trouble maintaining elevation on a tur...

Researchers make long DNA 'wires' for future medical and electronic devices

...iosensors," Lee said. "And in our case, we want to try to build tools for gene delivery, DNA recombination, and maybe even gene repair, down the road." The longest strands are one millimeter (thousandths of a meter) long, and only one nanometer (billionths of a meter) thick. On a larger scale, positioni...

Researchers uncover mechanisms of estrogen in promoting cell death in breast cancer

...en promotes apoptosis is not well understood. To try to understand how the estrogen estradiol induces apoptosis in cells, V. Craig Jordan, Ph.D., D.Sc., of the Fox Chase Cancer Center in Philadelphia, and colleagues developed a line of breast cancer cells, called MCF-7:5C, that are resistant to estroge...

Scientists directly view immune cells interacting to avert autoimmunity

... node. "We now have a pattern to look for when we try to boost or prevent immune responses. 'Clusters' of cells in a lymph node such as we have seen may be indicative of certain unbridled T cell responses. The ultimate hope here is that seeing patterns of T cell activation may ultimately allow similar ...

Living taste cells produced outside the body

...s intend to use taste cell biopsies from humans to try to grow human taste cells. ...

Rice bioengineers pioneer techniques for knee repair

...regenerate themselves constantly. Tissue engineers try to capitalize on the body's own regenerative powers to grow replacement tissues that can be transplanted without risk of rejection. Donor cells from the patient are used as a starting place to eliminate rejection risks. Most tissue engineering invol...

Pleasing plant shapes explained by new computer model

...proposes a mechanism that works and can be used to try and prove some of the biological theories about the growth process." Smith and Prusinkiewicz worked with the botanists in Switzerland to create a three-dimensional simulation of plant growth at the microscopic scale, simulating cell division and sho...

Boosting newborns' immune responses

...rial and viral triggers. "In the future, we could try to block adenosine in newborn animals to see if this helps protect against infection," Levy says. Levy believes the differences his team has uncovered in newborns' immune response patterns may serve an evolutionary purpose. Nature may suppress babie...

Infections could contribute to adult brain tumours

...nd Health Sciences, added: "Future research should try to identify specific infections which could potentially be a trigger. If these are found, it could lead to future preventative measures." Professor John Toy, Cancer Research UK's medical director, said: "Brain cancer is rare, accounting for less t...

Successful cell engineering may lead to mad cow prevention, say researchers

...d, most of those in England. "The next step is to try and avoid the cloning process - to skip that step if possible in developing the disease resistant animals," Westhusin says. "That's where more research is going to be needed and where the process goes from here." Westhusin has been involved in seve...

Unique equine cataract surgery offered on routine basis

...g to push the boundaries of veterinary surgery and try these new techniques, my horse would not be here today." ...

Cholesterol gets 'thumbs up' for role in digit development

...ven cholesterol's supposed tethering ability. To try and clear up cholesterol's role in digit patterning and the Sonic hedgehog gradient, Chiang and colleagues created mice with an altered form of the Sonic hedgehog protein to which cholesterol cannot attach. They found that mice lacking cholesterol-m...

Waking a sleeping virus

... the other. "This is an ideal type of structure to try to target with a drug," Petosa says. "If we can find a molecule to block access to the cavity, the copies wouldn't be able to bind to each other and dock onto DNA." Morand and his colleagues carried out a close study of the pocket, which gave them g...

Researchers develop portable 'vein finder' for faster, more accurate injections

...e skin's surface, it's still easy to miss when you try to insert a needle into the tissue below." The D... Compared to existing devices on the market that try to locate veins with lights or heat strips, the GTRI-developed system will be faster and more reliab...

How 'hot' emotional brain interferes with 'cool' processing

...he neurological target of the drug and not have to try to measure the more nebulous behavioral response. So, we can detect a sub-threshold response to such drugs, which will help us understand whether we're going in the right direction in terms of drug development." Such studies are being carried out in...

UC Riverside psychologist explores human perception, finds 'wow factor'

...nt asked subjects to listen to recorded sounds and try to recognize where on campus the recordings were made. "We picked different places -- a men's bathroom, the old gym, a walk-in closet -- and it turns out that people are terrific at it," Rosenblum said.In another experiment, Rosenblum and his team s...

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