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Tag: "releases" at biology news

Cells re-energize to come back from the brink of death

...er proteins needed to support apoptosis after MOMP releases cytochrome c. But this victory over death is short-lived if CICD is activated. However, some cancerous cells not only dodge death from apoptosis by eliminating caspase activation, but they also foil CIDC. “Our study sought to understand how a cancer ...

Putting feelings into words produces therapeutic effects in the brain

...passing judgment or reacting. An individual simply releases his thoughts and “lets it go.” “One way to practice mindfulness meditation and pay attention to present-moment experiences is to label your emotions by saying, for example, ‘I’m feeling angry right now’ or ‘I’m feeling a lot of stress right now’ o...

Anthrax paralyzes immune cells with lethal toxin, UF research shows

...od and secreting toxins." Once inhaled, anthrax releases a lethal toxin that immobilizes the white blood cells that normally seek and destroy invading bacteria. Just traces of the toxin can slow movement of these cells, called neutrophils, by 50 percent, UF researchers discovered. "Neutrophils have to g...

Newborn neurons like to hang with the 'in' crowd

... nerve branch arrives at the pre-synaptic area, it releases a chemical signal. The signaling molecules travel across the synapse and induce a signal on the neighboring, receiving nerve fiber or dendrite. A typical neuron sports about 7,000 synapses through which it stays in touch with roughly 1,000 other cell...

Dealing deadly cancers a knockout punch

...f itself, and then causes the cell to burst, which releases viruses that infect and kill adjacent cancer cells. Normal cells are not harmed. In addition to killing cancer cells directly, reovirus is believed to activate an anti-tumor immune response through the body's natural killer cells and T cells. Thr...

Confirmed -- deforestation plays critical climate change role

...in the journal Science that tropical deforestation releases 1.5 billion tonnes of carbon each year into the atmosphere. "Deforestation in the tropics accounts for nearly 20 per cent of carbon emissions due to human activities," Dr Canadell says. "This will release an estimated 87 to 130 billion tonnes of ca...

Leeches ferry infection among newts

...ansmitted when one of these spores bursts open and releases its endospores onto the mouthparts of a feeding leech. Their findings are outlined in the January issue of Journal of Parasitology. In 2004, Raffel and his Penn State colleagues Peter J. Hudson, professor of biology, and James R. Dillard, then an...

Scientists unravel clue in cortisol production

...erson's under stress or injured, the adrenal gland releases cortisol to help restore the body's functions to normal. But the hormone's effects are many and varied, lowering the activity of the immune system, helping create memories with short-term exposure, while impairing learning if there's too much for too...

Protein may hold key to decreasing organ dysfunction rates in heart transplants

...ory cells infiltrate the donated heart, which then releases enzymes and other proteins that attack the transplanted tissue, and can seriously impair the viability of replacement organs and jeopardize the health of the patient. The identification of Lcn-2 could be a first step towards reducing this inflammator...

Fruit flies and global warming -- Some like it hot

... on cool days. Loeschcke and Hoffmann did field releases with colored flies exposed to different heat hardening treatments to get estimates of a fitness component in the wild. They used the likelihood to be caught at baits in field sites without natural resources as an estimate of fitness in Drosophila. Th...

Brain works more chaotically than previously thought

...means of an amazing signal conversion: the synapse releases chemical messengers, known as neurotransmitters, which diffuse to the dendrites. There, they dock onto specific receptors and generate new electrical impulses. "It was previously thought that neurotransmitters are only released at synapses," points o...

St. Jude announces breakthrough in eye cancer treatment

... of the body." The discovery that blocking MDMX releases the apoptosis response in retinoblastoma has important implications for certain forms of adult cancers as well. "Some forms of breast, lung, prostate and colon cancer are caused by abnormally large quantities of MDMX in the cells," Dyer explained. "S...

Sequencing of the oyster mushroom genome

...ilar to some of the contaminant compounds that man releases into the environment, such as certain colorants or oils and by-products of the timber industry such as pulp and paper. Thus, the study of the functioning of the oyster mushroom and of its strategies for adapting to its growth environment and for de...

T-beta-RIII joins the fight against breast cancer

...e T-beta-RIII cleavage at the cell membrane, which releases soluble T-beta-RIII that blocks TGF-beta signaling. As low levels of T-beta-RIII were found to be associated with decreased recurrence-free survival of patients with breast cancer and loss of T-beta-RIII was found to begin before tumors became invasi...

Hopkins researchers discover how brain protein might control memory

...lls connect with each other in the brain, one cell releases chemicals into the space between it and its neighbor. The neighboring cell has protein receptors on its surface that capture the released chemicals. The cell that captures these chemicals then swallows up the receptor-chemical complexes, removing the...

New sunscreen ingredient to heal sunburn and help prevent skin cancer

...ilter for UVA and UVB sunlight, the new ingredient releases an active ingredient which mops up free iron that is released when the skin burns. This reduces the inflammation and pain that goes with sunburn ?which is exacerbated by the iron - and also prevents the build up of harmful sunlight-generated free r...

Longer-lived rodents have lower levels of thyroid hormone

... Mario Pinto, the study's lead author. The thyroid releases hormones that regulate metabolic rate. "Thyroid hormones are key regulators of metabolism and have been widely implicated to influence longevity," the authors wrote. Pinto will present the study "Differential thyroid hormone activity in rodents wi...

New HIV statistics indicate increasing toll of AIDS on African American community

...he U.S. Centers for Disease Control and Prevention releases new national HIV statistics and we see an ever-increasing toll of AIDS on the African-American community," said Dr. Fullilove. "And each year we ask why AIDS is hitting black Americans hardest. Our analysis identifies the forces that drive the epid...

Microcapsules like it hot and salty

...ing the capsules as a component of car paint which releases a corrosion protection agent when damaged, thereby stopping the damaged section from becoming larger. As microsensors they could supply information about the concentration of certain molecules, such as glucose or calcium ions in cells or also work as...

New finding points way to foiling anthrax's tricks

...ly, manufacturing a toxin that kills the cells and releases thousands of new spores into the bloodstream. Because the iron-capture stage is critical to growth, it has become a recent focus of attention as a possible drug target. Raymond, who has studied bacterial siderophores that capture iron for 35 years...

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