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Tag: "receives" at biology news

Scientists discover role for dueling RNAs

...-that is, the DNA duplicates so each daughter cell receives exactly the same number of chromosomes as the original cell. However, when the yeast cells are starving, IME4 switches on and activates a process called meiosis. Here, the cells divide into germ-cell spores that, like mammalian egg and sperm cells, h...

Vaccine for brain tumors shows promising results

...eive a minimum of four injections: the first group receives biweekly vaccinations and the second receives weekly vaccinations. Patients are monitored for immune response before, during and after treatment. ...

Hope for major advance in fighting world killer disease

...-ChilD (because each child is precious!) currently receives funding of ?m from the European Union, but in its earlier stages it was supported by an Academic Links Scheme funded by the British Council and the Indian University Grants Commission. Professor Williams commented: "All cases of diarrhoea look the ...

Engineer ramps up protein production, develops versatile viral spheres

...e viral spheres At the ACS session where Swartz receives the award he also will present one of the most recent innovations in his lab, the cell-free production of engineered viral capsids. The capsids are based on the outer shell of a naturally occurring virus that infects E. coli bacteria. They are formed...

Did 'ABCs' cause Uganda's fall in HIV rates?

...oach is political and not evidence-based." Uganda receives funding from the US President's Emergency Plan for Emergency AIDS Relief, which has a major focus on abstinence-driven public health campaigns. Such campaigns, say Mihailovic and Olupot-Olupot, assume that abstinence will allow young women to focu...

Sensory feedback during speech: The brain attunes to more than just sound

... "correcting" the somatosensory feedback the brain receives during speech. This learning took place even when speech sounded normal, and it occurred when the robotic interference was applied during both vowel and consonant sound production. The findings support the idea that accurate acoustic quality is no...

One signal elicits thousands of answers

...ovember 2, 2006). The mammalian cell constantly receives signals from its surroundings to which it has to respond appropriately. Growth factors, for example, can lead to growth of a cell, its differentiation or proliferation. Defects in these tightly regulated and controlled processes can cause cancer and ...

Environmental toxins may cause body's defenses to worsen lung disease

...continues its survey for problems. But if the cell receives a signal that the tissue is infected, it will automatically destroy it to protect the body from disease. "The immune system thinks it's eradicating disease from the body when it destroys cells that have been damaged by environmental toxins, but in c...

New research identifies gene important for nicotine's effects on the brain

...otto's work explored how the brain changes when it receives nicotine and, therefore, focused on the dopamine system in the brain. Dopamine is one of a number of neurotransmitters that plays an important role in motivation and reward processes. Nicotine activates the dopamine system in the brain as do other ...

How the brain weaves a memory

... central question has been whether the hippocampus receives an "episodic packet," or a collection of perceptual strands that it must integrate into a memory. In an article in the November 9, 2006, issue of the journal Neuron, published by Cell Press, Melina Uncapher and colleagues report experiments with hum...

Two nerve cells in direct contact

...re and secondly, indirectly via the CH cell, which receives information via several intermediate stops from the other half of the brain and which inhibits the H2 cell on the same side with chemical synapses. Both connections were in principle suitable for achieving the effect described; however the question r...

How fish mend a broken heart

...ke University Medical Center. The ventricle, which receives blood and then pumps it back out to the body, is one of two chambers that make up the fish heart. "This study gets at some of the important mechanistic questions about how they rebuild the heart, and some of the key factors that contribute." In con...

Reversing cancer cells to normal cells

...presence of the Nodal and the signals it sends and receives appear to play a key role in tumor cell plasticity and progression. Most noteworthy, Dr. Hendrix’s team’s also has shown that inhibition of Nodal signaling leads to a reduction in melanoma cell invasiveness and ability to create new tumors. In ...

Fungal factories may save hemlock forests

... donated from a New York-based cheese company, and receives support for his research from the USDA and EPA and other funders. Whey is a far cheaper growing medium than those available in labs for the many fungi now in use as biological controls in agriculture and forestry. And the whey serves as a nutri...

Immunization rates hit record high in poor countries

... donated from a New York-based cheese company, and receives support for his research from the USDA and EPA and other funders. Whey is a far cheaper growing medium than those available in labs for the many fungi now in use as biological controls in agriculture and forestry. And the whey serves as a nutri...

Scientists unravel clue in cortisol production

...odel the events that occur after the adrenal gland receives the signal. One of the things the signal does is cause adrenal cells to increase their production of cyclic AMP (cAMP), a chemical that encourages proteins to interact. So they began by causing the cells to make more cAMP. Then as the proteins ass...

Notorious cancer gene may work by destroying messenger

...NAs and remains there as a silent passenger. If it receives the proper signal, however, the protein chops up and destroys the mRNA, which instantly stops production of that protein. Cells use that mechanism to control the production of proteins such as growth factors, which activate genes in response to a...

Genes and biomarkers that allow doctors to choose the right therapy for the right patient

...uld allow the enzyme to function whether or not it receives the commanding signal from EGFR. Therefore, the inhibition of EGF receptor by cetuximab will not block the molecular signals that are activated farther down the cascade. The researchers also determined that KRAS mutations are independent of anothe...

Researchers create artificial enzyme that mimics the body's internal engine

... proteins known as electron carriers. Each carrier receives electrons from the preceding one, then transfers t...e last electron carrier in the transport chain. It receives four electrons from the other carriers and transfers the electrons to the molecule of oxygen, conver...

UCSF brain tumor vaccine trial shows promising results

...ive a minimum of four injections. The first group receives biweekly vaccinations and the second receives weekly vaccinations. Patients are monitored for immune response before, during and after treatment. ...

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