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Tag: "activity" at biology news

Researchers develop promising new gene network analysis method

...otein" is switched on, what chain reaction of gene activity does it set off? The protein, c-Myc, causes cells...sted during the same time frame. Analysis of gene activity generated in the experiments revealed 1,191 possible players in the c-Myc gene network. A statistica...

Study shows humans have ability to track odors, much like bloodhounds

...essful detection of an odor is accompanied by more activity in the region of the olfactory cortex associated with the particular nostril. "While a subject was doing this task, I could look at the brain and tell you how accurate he or she would be on every trial and on the task overall," Sobel said. "So the f...

Blink, and the brain misses it

...rchers devised a clever way to monitor the brain's activity under conditions in which the amount of light rece...ts found that when volunteers were blinking, brain activity was suppressed in areas that respond to visual input, even though the light falling onto the retina ...

First production of human monoclonal antibodies in chicken eggs published in Nature Biotechnology

...fucose, which greatly increases their cell-killing activity compared to CHO-produced antibodies." To create t...antibodies show dramatically enhanced cell killing activity elevates the chicken system considerably relative to other non-traditional production technologies a...

Green catalyst destroys pesticides and munitions toxins, finds Carnegie Mellon University

...on Center 147B; "Micellar regulation of the activity of Fe-TAML activators of peroxides in aqueous solutions," poster presentation by Deboshri Banerjee, I&EC 11, 8 p.m. Sunday, Aug. 28, Convention Center, Hall A. ...

Newly discovered genetic disease sheds light on body's water balance

...an assay for receptor activity. One marker of this activity is an increase in the amount of cyclic AMP (cAMP) within the cell. He worked in the laboratory of pediatric endocrinologist Walter Miller, MD, using a method to determine cAMP levels in cells by using a luciferase plasmid that responds to cAMP. Luci...

Virginia Tech group adds tools to DNA-targeted anti-cancer drugs

...ance, they added platinum, a metal with anticancer activity because it binds to DNA inhibiting cell replication. "Using platinum assures that we are activating complexes that are already attached to the target," Brewer said. "The previous systems had an association with DNA but could release, which might resu...

Bad aftertaste? New sensory on/off switch may 'cure' bane of artificial sweetener search

...ance, they added platinum, a metal with anticancer activity because it binds to DNA inhibiting cell replication. "Using platinum assures that we are activating complexes that are already attached to the target," Brewer said. "The previous systems had an association with DNA but could release, which might resu...

How monarch butterflies are wired for navigation

... circadian clocks govern the approximately 24 hour activity and metabolic cycles of animals from the simplest insects to humans. Reppert and his colleagues found that key genes responsible for the clock's molecular "ticks" were expressed in a brain region called the dorsolateral protocerebrum. Using tracer mo...

New tool reveals secrets of migrating cells

...te nearly a millimeter - deep enough to probe cell activity in most tissues. Witt pointed out that obtaining a movie of cell movement is just the beginning. The human eye and brain can't pick out patterns of movement easily, so statistical techniques are needed to identify cells with different patterns of mo...

Novel compounds show promise as safer, more potent insecticides

... Nohyaku. In early tests, the compound showed high activity against the tobacco budworm (Heliothis virescens), which is known to cause serious damage to cotton, tobacco and other crops, the researchers say. The compound did not have any measurable effect on mammalian ryanodine receptors, according to Peter Lü...

The genetic origins of corn on the cob

... gene activity, and that these different levels of activity have a big impact on the architecture of the plant...r with more and more rows of kernels, based on the activity of genes other than ramosa1. But we suspect that as the ear got larger, it needed special alleles of...

$6.5 Million Grant for Microarray Center at Yale School of Medicine

... gene activity, and that these different levels of activity have a big impact on the architecture of the plant...r with more and more rows of kernels, based on the activity of genes other than ramosa1. But we suspect that as the ear got larger, it needed special alleles of...

Scientists find microRNAs regulate plant development

...sis embryo relies on microRNA restriction of ARF17 activity to achieve normal bilateral symmetry." A second report focuses on the function of the protein ARGONAUTE1 (AGO1), a major component of the RNA-induced silencing complex in Arabidopsis. There are many AGO1-like proteins in animals and other eukaryotes...

Unexpected lock and key mechanism found for the assembly of tumor blood vessels

...ith breast cancer patients to see if measuring the activity of the receptor, or "lock," called integrin, could help diagnose the cancer earlier. They are also currently planning cancer clinical trials with an FDA approved drug directed against the integrin. Angiogenesis has been an intensely studied field of...

Exercise training in ordinary people affects the activity of 500 genes

...dangerous to be inactive and that regular physical activity brings health, improves quality of life and extend...eated in the body is not known. Influences on gene activity in the heart, vessels and muscles are probably immensely important. In this study, the first of its...

Attacks of King George III's madness linked to key metabolism molecule

...n the liver. One of its actions is controlling the activity of the ALAS-1 gene that makes a protein that's cru... avoid any drugs or foods that turn on PGC-1 alpha activity in the liver, the researchers say. There could be implications for treatment as well: high-carbohydr...

New protein vital for immune response is found in surprise location

...e cases, therapies that enhance MAVS expression or activity may be a viable option for boosting immune responses against viral diseases." The fact that MAVS is located within the membrane of the mitochondrion makes sense for a couple of reasons, Dr. Chen said. First, proteins housed within the mitochondria...

Gene expands malaria's invasion options

...out it. Then they compared the differences in gene activity between the two types and identified two genes tha...rther study. The team found only two genes whose activity differed between parasites that used sialic acid and those that did not. The first of these was a ge...

Scientists track stealth DNA elements in primate evolution

...e. Over evolutionary time, this retrotransposition activity has led to the generation of over one million copi...dden outburst of human-specific retrotransposition activity in the past few million years, led Dr. Batzer and colleagues to formulate a new theory for the evolu...

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