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Tag: "required" at biology news

First real-time view of developing neurons reveals surprises, say Stanford researchers

...s to their overstuffed brains, new connections are required to retain that information. Some diseases also seem to be caused by brain connections not forming normally. Dyslexia, for example, may be caused by connections failing to form between certain brain regions, whereas schizophrenia may result from too ...

Duke Chemists Isolating Individual Molecules Of Toxic Protein In Alzheimer's, Parkinson's Disease

...the Duke scientists can deduce how much energy was required to bring the molecules together. Then, using their knowledge of protein chemistry, they can develop hypotheses about how those particular monomers might, or might not, be involved in the evolution of fibrils, They can thus develop a better understand...

Plants defy Mendel's inheritance laws, may prompt textbook changes

...s and abnormal growth. Though further research is required to learn how this form of inheritance happens and how it can help improve plants or animals through gene therapy, Pruitt said the discovery has opened an important new line of thinking. The other researchers involved with this study were Jennifer Vi...

Study of genomic DNA leads to new advances in cancer diagnostics

...mas of varying invasiveness. Further study will be required to determine the specificity and sensitivity of these methods before they are used in the clinical setting. Physicians and researchers alike know that how a cancer cell interacts with its microenvironment is important for cancer progression. Such in...

Rush Physicians Using Gene Therapy For Heart Patients With Moderate To Severe Chest Pains Who Do Not Benefit From Other Treatments

...thelial cells in the heart. New blood vessels are required to provide oxygen-carrying blood to heart muscles ...y or a placebo delivered using the same method. As required by the U.S. Food and Drug Administration, the study is "double blinded," which means that neither th...

How an AIDS-Related Cancer Unleashes Inflammation

...dicated that the abnormal growth of infected cells required the overproduction of cytokines ?immune system proteins that trigger the cell's inflammatory response. A central question, he said, has been how does the Kaposi's sarcoma-associated herpesvirus that causes KS initiate cytokine production? "While the...

Unprecedented water level rise in Somalia

...arger scale protection of the river embankment was required and that it would be supported by the UN Children's Fund (UNICEF). A humanitarian contingency plan was also being developed. On Sunday heavy rains and floods hit Hargeisa, the main city Somaliland. The floods washed away one of the two bridges in th...

Expression Project for Oncology (expO) completes first phase of standardized gene expression analyses

...ly, due to the number of handling and review steps required to insure that the release of that tumor sample in no way jeopardizes patient care. Nonetheless, rapid handling is a necessity in order to maintain the integrity of RNA by quickly freezing the portion of tumor released for analysis. Historically, col...

Supercomputer Dedicated To Bioengineering, Computational Biology Installed

...ver faster and more specialized supercomputers has required computational biologists to continually reinvent their modeling software. "It's not new that science has been developing large computational challenges, but what is new is the commoditization of supercomputing," said McCulloch. "These commodity clust...

Variation in women's X chromosomes may explain differences among individuals, between sexes

... in the population," Willard said. Further work is required to explore potential consequences of that variatio...emain, Willard said. For example, further study is required to determine if the pattern of X inactivation differs across tissues or over time and whether there ...

Hirsute Or Hairless? Two Proteins May Spell The Difference

...ells—is essential for allowing the cell remodeling required for bud formation. Here, the authors analyze the timing of external signals against the response of targeted cells to determine how targeted cells translate signals into changes in cell adhesion and remodeling, proliferation, and differentiation—the ...

Flocking together: Study shows how animal groups find their way

... to stay in the group. In repeated simulations, it required only a few individuals with specific goals to set ...t. As a result, the number of informed individuals required to lead a small group was about the same as the number needed to lead a large one, Couzin said The ...

Nanoscale Diagnostic Sets Sights on Alzheimer's

...ssays (ELISAs). ELISAs do not have the sensitivity required to detect ADDLs in cerebrospinal fluid. BCA could eventually be configured to detect hundreds of diseases simultaneously ?with a single procedure, doctors could quickly and inexpensively test a blood sample for any number of ailments. The researcher...

Stopping smallpox in its tracks: A new anti-viral approach

...rus by interfering with the very pathways that are required for viral replication and extrusion." This study demonstrates, for the first time, that chemical inhibition of host cell signaling pathways exploited by infectious agents represents a new avenue for development of anti-viral therapeutics. These inhi...

Researchers identify protein crucial for survival of Lyme-disease bacterium

...them ?that we began to see the effect. Our results required a much more comprehensive assessment of the total life cycle of the bacterium, as opposed to just focusing on the mammalian infection, which is what many scientists tend to do." ...

Multi-purpose protein regulates new protein synthesis and immune cell development

...rising finding that this same signaling protein is required for the formation of immune cells called B lymphoc...royed by other immune cells. Knowing that XBP1 was required to create plasma cells, Zhang designed a study to see if IRE1 was involved, also. Zhang studied mou...

Light therapy may combat fungal infections, new evidence suggests

...ntified a second, related gene, BWC2, that is also required for C. neoformans normal response to both blue and...istics previously linked to virulence. "The genes required for light sensing, while not essential for virulence, do contribute to the rapidity with which the f...

Researchers find new genes necessary to make embryo

... complete mapping of which parts of the genome are required for embryonic development. The new findings also p...st double previous estimates of how many genes are required to make an embryo. Their study focused on the genes expressed by the mother and imparted to the egg,...

New insight into regulation of blood stem cells

...mals to examine the role of a key gene known to be required for blood cell formation. Information gained from ...tion. Interestingly, they found that c-Myb is not required for every step of hematopoiesis or for every type of blood cell. Instead, c-Myb is critical for very...

UCSD-Salk Team Show Protein’s Gene-Silencing Role In Development of Nervous System

...titute, La Jolla, California. The phosphatases are required for maintenance of neural stem cells and for silencing expression of neuronal genes in non-nervous system tissues. Published in the January 28, 2005 issue of the journal Science, the study found that the phosphatases, called small carboxyl-terminal ...

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