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Tag: "stimulating" at biology news

Progress toward an antitumor vaccine

...containing compounds are completely ineffective at stimulating the immune system to form antibodies. “Immunization is only successful if the vaccine is anchored to an immunizing carrier protein by means of a spacer,” explains Kunz. This would be very easy to accomplish with polysaccharides, but turns out to be v...

Runners -- Let thirst be your guide

...e known as interleukin-6 (Il-6) is also capable of stimulating AVP secretion. Verbalis noted in his Sports Medicine paper that since 1985, “well over 100 individual cases” of EAH have been reported from physical exercise activities as diverse as forced military marches, prolonged hiking and marathon, ultra...

Smallpox outbreak: How long would it take for vaccines to protect people? Would it work?

...s national studye to start protecting Americans by stimulating an immune response? A new national study led by Saint Louis University School of Medicine will attempt to answer this question. General routine vaccinations for smallpox were stopped in the United States in 1971, and the world was declared free ...

New Brandeis research sheds light on memory by erasing it

...y molecule." The research involved electrically stimulating neuronal synapses to strengthen them, a process known as long-term potentiation (LTP). This process has served as a model system for studying memory. CaMKII has been a leading candidate as a memory molecule because it is persistently activated after ...

How appetite-stimulating brain cells work overtime during fasting

...ng periods of fasting, brain cells responsible for stimulating the appetite make sure that you stay hungry. Now, a new study of mice reported in the January issue of the journal Cell Metabolism, published by Cell Press, reveals the complex series of molecular events that keep those neurons active. The research...

3 proteins may play important role in nerve-cell repair

...he nerve cells, while GPR12 was the most potent at stimulating growth of the nerve extensions. The study showed that blocking GPR3 greatly slows the growth of the nerve extensions. The researchers reversed this effect by restoring either GPR3 or GPR12 in the cells. High levels of the three proteins were also...

Liver regeneration may be simpler than previously thought

...scientists are now trying to make organs regrow by stimulating these proteins. Regrowing livers this way would be...n organ donor, they do not always survive. Quickly stimulating the growth of the remaining portion of their liver could be their only chance of survival. To inv...

Novel antigen-cloning technique may boost efforts to develop a melanoma vaccine

... scientists to design vaccines capable of directly stimulating helper T cells, aiding the development of vaccines not only for cancer but also for infectious diseases, says Dorothee Herlyn, D.V.M., senior author on the study and a professor in the Molecular and Cellular Oncogenesis and Immunology programs at Wis...

UW launches study testing adult stem cells for heart damage repair

... commercially produced protein (granulocyte colony stimulating factor). The protein helps to release blood-forming CD34+ cells from a subject's bone marrow into the bloodstream. Then, investigators use a cell separation system to remove from the subject's bloodstream a mix of cells containing the stem cells....

UCSF brain tumor vaccine trial shows promising results

...ation (trademarked as Oncophage) was effective in stimulating the patient’s immune system to attack the tumor cells, a function that is known medically as tumor-specific immune response. All the patients had recurrent, high-grade glioma, and all showed the immune response. The vaccine is made from the patient...

Cancer vaccines -- Taking a jab at cancer by stimulating the immune system

... on ongoing HPV trials and other new approaches to stimulating the immune system are injecting momentum into canc...rst vaccine that takes a multi-pronged approach to stimulating the immune system with derivatives of wild type ?or non-altered ?p53, a tumor suppressor gene. Loss ...

Scientists to track impact of Asian dust and pollution on clouds, weather, climate change

... so-called "ion channel," which reacts to light by stimulating movement toward it. While researchers previously have used channelrhodopsin-2 in a variety of experiments in cell culture, the Duke experiments mark the first time the gene controlling its action has been inserted into the genetic makeup of a livi...

Common algae helps illustrate mammalian brain electrical circuitry

... so-called "ion channel," which reacts to light by stimulating movement toward it. While researchers previously have used channelrhodopsin-2 in a variety of experiments in cell culture, the Duke experiments mark the first time the gene controlling its action has been inserted into the genetic makeup of a livi...

Antibody signal may redirect inflammation to fuel cancer

...tes apparently receive signals to switch programs, stimulating cell growth and increasing blood supply -- processes that would normally help healing from an infection, but can instead fuel cancer cell development." The researchers have not yet identified what specific signal or signals are involved, but preli...

New dopamine brain target discovered

...t triggers a calcium signal, which is turned on by stimulating D1 and D2 dopamine receptors. Unlike other dopami...to dopamine or specific drug triggers. Strikingly, stimulating this target with dopamine or specific drugs triggered a rise in calcium in the brain. As calcium ha...

How fish conquered the ocean

...ment of Biology at the University of Bergen."It is stimulating to both students and staff at the department when our researchers are able to contribute to solving great evolutionary problems."...

Researchers to study why dead zone returned to Lake Erie

... a key driver for enacting the Clean Water Act and stimulating the environmental movement. We thought the problem was solved, and the surprise is in the last few years the dead zone is back." Researchers from U-M, the Cooperative Institute for Limnology and Ecosystems Research, NOAA, and several other universi...

How fish mend a broken heart

...llow suit, invading the wounded cardiac tissue and stimulating the growth of new blood vessels. "Zebrafish can survive pretty massive injury to the heart--the loss of about a quarter of their ventricle," said Kenneth Poss of Duke University Medical Center. The ventricle, which receives blood and then pumps it ...

'Protecting virus' offers instant flu protection and converts flu infections into their own vaccines

... longer). Existing vaccination methods depend on stimulating the body's immune system, so that white blood cells produce antibodies that attach to the surface of the virus and start the process of killing it. This works well for many diseases, such as smallpox, polio and measles, but is much less effective wi...

Cocaine high caused by interference in neuronal receiving stations

...n—the region known to be responsible for cocaine's stimulating effects. The researchers also analyzed whether this interaction between D2R and NR2B affected the rats' behavioral response to cocaine—specifically the hyperactivity and intensive sniffing and biting the drug elicits in the animals. They found that...

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