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Tag: "modulated" at biology news

A new mechanism of regulating RNA degradation

At first, we thought that gene expression was modulated only by transcription factors. Then we found that the RNA resulting from transcription could be regulated by the RISC complex (siRNA-mediated degradation via Dicer). And now it seems that regulation at the RNA level is even more complex than we first...

FDA Approves Human Hookworm Vaccine for Phase I Safety Trials

At first, we thought that gene expression was modulated only by transcription factors. Then we found that the RNA resulting from transcription could be regulated by the RISC complex (siRNA-mediated degradation via Dicer). And now it seems that regulation at the RNA level is even more complex than we first...

Migratory songbirds have a specialized night-vision brain area

...hotoreceptor molecules, whose light-sensitivity is modulated by the field. The researchers published their findings May 23, 2005, in the early online edition of the Proceedings of the National Academy of Sciences. The collaboration was led by Henrik Mouritsen of the University of Oldenberg in Germany and Eric...

Mouse with designer liver has enhanced glucose tolerance, insulin response

...betes. Precisely how insulin-initiated signals are modulated in liver cells for glucose uptake and metabolism is unknown. Gen-Sheng Feng, Ph.D., a Professor in The Burnham Institute's Signal Transduction Program, has focused his efforts on a recently discovered protein called Gab1. Gab1 has a structure that i...

DNA constraints control structure of attached macromolecules

... of the DNA constraint on the RNA structure can be modulated by external stimuli such as DNA oligonucleotide strands, protein enzymes and chemical reagents. While Silverman and Miduturu are currently using RNA as a proof of principle for their DNA constraint studies, they also plan to use the new technique to...

UN successfully tests 'green' pesticide against locusts

... of the DNA constraint on the RNA structure can be modulated by external stimuli such as DNA oligonucleotide strands, protein enzymes and chemical reagents. While Silverman and Miduturu are currently using RNA as a proof of principle for their DNA constraint studies, they also plan to use the new technique to...

Health costs soar as 60 million Americans classed as obese

... of the DNA constraint on the RNA structure can be modulated by external stimuli such as DNA oligonucleotide strands, protein enzymes and chemical reagents. While Silverman and Miduturu are currently using RNA as a proof of principle for their DNA constraint studies, they also plan to use the new technique to...

MicroRNA gene that regulates lifespan found by Yale scientists

...velopmental programs that these genes regulate are modulated through insulin signaling, demonstrating the connection between insulin-driven metabolism and aging. "This microRNA is conserved in humans leading to the enticing idea of being able to beneficially affect the results of aging including diseases of ...

Hormonal male contraception reversible after few months for all men

...concentrations at baseline. Although these factors modulated the speed of recovery, spermatogenesis recovered to levels compatible with fertility in all men. Dr Liu and colleagues comment: "Our data provide strong assurance that the previously described efficacy of hormonal male contraceptives is coupled with...

Face perception is modulated by sexual orientation

...es have shown that the neural response to faces is modulated by cognitive factors such as familiarity, attentio...unknown, however, whether the response to faces is modulated by gender or sexual orientation. Social communication requires the accurate analysis of the intenti...

Variations in detoxifying genes linked to Lou Gehrig's disease

...ther researchers hypothesized that sporadic ALS is modulated by variations in multiple genes interacting with each other and environmental exposures. The genes for human paraoxanases (PON 1, PON 2 and PON 3), which are located on chromosome 7q21.3, code for the production of detoxifying enzymes involved in t...

Key molecular signaling switch involved in allergic disease identified

... to Conrad, the outcome of allergic disease can be modulated by high levels of the regulatory protein, known as CD23, which ultimately results in a decreased production of IgE. He said that when the regulatory protein is released from the cell surface by ADAM10 there is an increase in the production of IgE and...

Most widely used organic pesticide requires help to kill

...s is a toxin-mediated septicemia (blood poisoning) modulated by the gut community." The exact role played by the microbes to promote the Bt toxin's lethal effects remains unknown. The upshot of the new work may have immediate application in designing strategies to manage insect pests by enhancing the killi...

Autoimmune disease triggered if T cells miss a single protein early on

...to see if T cell autoimmune attacks on IRBP can be modulated to prevent the autoimmune eye disease. ...

Proteins anchor memories in our brain

...to see if T cell autoimmune attacks on IRBP can be modulated to prevent the autoimmune eye disease. ...

The influence of the menstrual cycle on the female brain

...ks involved in processing reward-related functions modulated by female gonadal steroid hormones. This result, which was published online on January 29, 2007 on the PNAS website, is an important step in better comprehension of certain psychiatric and neurological pathologies. The human brain has a recompense s...

Studies yield insight into the numerical brain

...n, we expected that the adaptation effect would be modulated by the notation type. This result would suggest that distinct neuronal populations for notation exist." This meant that if the brain region was purely representing an abstraction of a number (e.g., 8) then any notational representation of this number...

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