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Tag: "manipulating" at biology news

Research identifies protein that signals flowering in squash plants

...portance in basic plant biology, understanding and manipulating the photoperiodic control of flowering time is an important objective in crop breeding and development programs, because it can aid in optimizing crop yields and other traits for local environmental conditions. Experimental evidence indicates that...

'Insulator' helps silence genes in dormant herpes virus

...he studies also have implications for treating and manipulating other types of viruses, Zhou says. "This study provides one of first examples of how viral chromatin is organized in a very similar way to host chromatin," Zhou says. "Learning more about the similarities and differences in these chromatin structu...

New Brandeis research sheds light on memory by erasing it

...ochemically erased in slices of rat hippocampus by manipulating a so-called "memory molecule," a protein kinase known as CaMKII. "The core problem in memory research has been understanding what the storage molecule actually is. Identifying this molecule is essential to understanding memory itself as well as any...

Scientists identify prion's infectious secret

...r could activate different recognition elements by manipulating environmental conditions, such as temperature. For example, when he conducted the experiment at 4 degrees Celsius, the baker’s yeast recognition element switched on. At 37 degrees Celsius, the pathogenic fungi element was activated. In other words, t...

Switching genes to overdrive improves muscular dystrophy symptoms in mice

...and Development, the researchers demonstrated that manipulating a genetic molecular switch increased the genes?activity in the muscles of mice with Duchenne muscular dystrophy, slowing the disease-associated muscle wasting. The authors caution that they have not yet found a way to tweak the switch, known as PGC-1...

Using nanomagnets to enhance medical imaging

...-50 nm range. The agency is pioneering methods for manipulating and measuring the magnetic properties of these compounds and is developing instrumentation for understanding how contrast agents work and how to control contrast properties. Researchers correlate the measured properties to the observed MRI response u...

Enhancing activity of marijuana-like chemicals in brain helps treat

...less, we have identified a new way of potentially manipulating the circuits that are malfunctioning in this disease." Malenka and postdoctoral scholar Anatol Kreitzer, PhD, the study's lead author, combined a drug already used to treat Parkinson's disease with an experimental compound that can boost the lev...

Scientists discover stage at which an embryonic cell is fated to become a stem cell

...ell-like properties. Thus, their results show that manipulating epigenetic information in this protein in early mouse embryos can influence cell fate determination ...

UCLA/Toronto researchers unlock key to memory storage in brain

...research could prove profound. "By artificially manipulating CREB levels among groups of cells, we can determine where the brain stores its memories," he explained. "This approach could potentially be used to preserve memory in people suffering from Alzheimer's or other brain injury. We may be able to guide ...

Can engineered immune cells stop AIDS?

...ials Science, is exploring a completely new way of manipulating the body's natural defense system. "Rather than focusing on conventional vaccines that boost the immune system, we are experimenting with a way to help the immune system produce antibodies that can neutralize the virus," says Wang. "If we can desi...

Cracking open the black box of autoimmune disease

...s that may help scientists develop new methods for manipulating immune system activity. "This may shorten the path to new therapies for autoimmune disease," says Whitehead Member and MIT professor of biology Richard Young, senior author on the paper that will appear January 21 online in Nature. "With this new l...

With fruit fly sex, researchers find mind-body connection

...ale-behavior-inducing activity of fruitless. By manipulating fruitless and retained in other experiments, McKeown and his team found critical interactions, or overlaps, in the "mind" and "body" pathways. Retained acts in both sexes, repressing male courting behavior and boosting female receptivity. Fruitless a...

Gold nanoparticles prove to be hot stuff

... of fragile biomolecules such as DNA or protein by manipulating a tiny sphere--typically polystyrene--attached to the molecule. The JILA team would like to find new microsphere materials that can be trapped by laser radiation pressure more efficiently, which would enable faster measurements and detection of small...

The power of one: A simpler, cheaper method for cell fusion

... antibody-producing hybrid, called a hybridoma. By manipulating the beta cells prior to fusion, scientists can create thousands of different hybridomas that produce antibodies effective against different viruses and diseases like cancer. Lu's research regarding the development and use of this technology was pu...

Engineered yeast speeds ethanol production

... corn and other plant material into ethanol. By manipulating the yeast genome, the researchers have engineered a new strain of yeast that can tolerate elevated levels of both ethanol and glucose, while producing ethanol faster than un-engineered yeast. The work will be reported in the Dec. 8 issue of Scienc...

Nanoscale microscope sheds first light on gene repair

...of living cells, but it has limited resolution. By manipulating how light waves behave, however, biophysicists are expanding the limits of light microscopy, and one of the latest advances--the 4Pi microscope--provides never-before-seen views of cellular components, including structures within the nucleus. In ...

UCLA researchers unravel a mystery about DNA

...Ebright said. "These methods involve detecting and manipulating single molecules, one at a time -- a breakthrough in its own right." "The study of molecular machines, the dynamics of their moving parts and their translocation on molecular tracks is of great interest to nanotechnologists at the CNSI," said Weis...

PNAS study reveals why organs fail following massive trauma

...re some of the same mechanisms and may be cured by manipulating the same molecules. A protein called programmed cell death 1 (PD1), for example, suggested by the PNAS paper as playing a role in post-trauma organ failure, is also involved in the immune system breakdown leading to AIDS, according to an article in t...

Mirrors in the mind: New studies elucidate how the brain reflects onto itself the actions of others

...so-called rubber-hand illusion--for experimentally manipulating the sense of body ownership. This approach was useful because without such illusion, it is difficult to identify meaningful differences in how the brain responds to actions performed by oneself or others--the two scenarios involve significant differe...

Advance helps explain stem cell behavior

... possibly control the early developmental process, manipulating stem cells in a way that would help address disease problems, injuries, failing organs or other medical issues. "If you have an electrical problem in a car, you can repair it a lot easier if you have a wiring diagram," said Michael Gross, an assist...

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