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Tag: "unexpected" at biology news

Microbes at work cleaning up the environment

... extracellular biomineralization mechanism that is unexpected because it involves the bacteria excreting proteins for nanoparticle aggregation away from the cells,” said Peter Weber, one of the LLNL authors of the paper appearing in the June 15 edition of the journal Science. Weber and LLNL colleague Ian Hut...

Mice with a migraine show signs of brain damage

... a migraine unfolds. The team uncovered a complex, unexpected tale of supply and demand regarding blood flow and oxygen. In short, the team found that the brain develops a voracious demand for energy as the organ attempts to restore the delicate chemical balance that is lost in the initial throes of a pheno...

Salk scientists hammer out a pathway that promotes muscle cell survival in mice

... "We’ve discovered that SIK1 provides a completely unexpected link between two important mechanisms of gene regulation, CREB and HDAC, and have shown that this pathway plays a major role in maintaining normal muscle function," said Berdeaux. "Now it remains to be seen how this pathway works in muscle under diff...

No magic tomato? Study breaks link between lycopene and prostate cancer prevention

...and commonly used as a dietary supplement. This unexpected observation "may be due to chance, however beta carotene is already known to increase risk of lung cancer and cardiovascular disease in smokers," Peters said. "While it would be counter-productive to advise people against eating carrots and leafy...

Cloning the smell of the seaside

...of Johnston. "And we discovered that other, wholly unexpected bacteria could also make that seaside smell." The discovery adds to the diverse list of Stiffkey's claims to fame. The small coastal village is renowned for its 'Stewkey Blue' cockles and was also the home of Henry Williamson, author of 'Tarka the...

NIH researchers discover protein that appears to regulate bone mass loss, the cause of osteoporosis

...w study, published online this week, confirms this unexpected connection. CD40 ligand appears to regulate cells that secrete chemicals that block bone metabolism, and the loss of this protein in people with X-linked Hyper IgM Syndrome appears to accelerate bone loss. The next step, say the researchers, is to de...

Gut research yields new anti-cancer approach

... receptor-gamma (PPARgamma) inhibitors may have an unexpected cancer-fighting effect, according to research published today in the journal International Cancer Research. Furthermore, the new studies suggest that PPARgamma inhibitors act through some of the same mechanisms as the blockbuster chemotherapy Taxol, ...

How appetite-stimulating brain cells work overtime during fasting

...ve at least three hormones, two cell types, and an unexpected interlocutor, uncoupling protein 2." ...

Scientists uncover link between ocean's chemical processes and microscopic floating plants

...and carbon dioxide concentrations have resulted in unexpected changes in oceanic chemical processes. Their research results are published in the March 7, 2007, issue of the journal Geophysical Research Letters. Oliver Wingenter of New Mexico Tech and his colleagues conducted a month-long field experiment. The ...

Link found between immune system and high plasma lipid levels

...u, senior author on the paper. "It reveals a quite unexpected role of hepatic T cells in lipid metabolism." "Those with inflammatory problems such as lupus, rheumatoid arthritis and inflammatory bowel syndrome have a higher incidence of cardiovascular disease, often associated with elevated lipid levels," ad...

Blame the brain for high blood pressure

...g study is important because it suggests there are unexpected causes of high blood pressure related to blood supply to the brain. It therefore opens up the possibility of new ways to treat this common, but often poorly managed, condition.? As there is still poor understanding about what changes occur in peopl...

Darwin's famous finches and Venter's marine microbes

...portant in human kinases, but the other three were unexpected finds. The other surprising finding was just how innovative and plastic the different families were, even with these core residues, as one or another family had found ways to eliminate any but one of the 10 key residues. Using structural modeling...

New study may show how to forestall a fatal, virus-caused immune-system meltdown

...dy generated some therapeutic leads, thanks to the unexpected discovery that a growth factor receptor molecule normally associated with cancers was activated late in infection with the lethal strain of the virus. “We can go in and design an experiment where we can start testing drugs that already have FDA appro...

Twin studies reveal genetic components leading to cardiac and kidney disease

... traits and genes, we have started to put together unexpected stories," he said. Studying genetic variations ...ed particular genes that influence human health in unexpected ways. "Factors linked to cardiac or kidney disease ?such as hypertension, a tendency toward obesi...

Cholera pathogen reveals how bacteria generate energy to live

...era said. "It’s basic science that will take us to unexpected places." One of those unexpected places in Barquera’s career has been her developing interest in the physiology and life cycle of V. ...

Why don't all moles progress to melanoma?

... found the answer to this important question in an unexpected place ?a structure inside cells called the endoplasmic reticulum, or ER. "Our results support the direct role of the endoplasmic reticulum as an important gatekeeper of tumor control," says Soengas, who is an assistant professor of dermatology in ...

Nobel Laureate finds 'elegant' explanation for DNA transcribing enzyme's high fidelity

...w that is accomplished.? These findings offer “an unexpected and elegant explanation that’s both beautiful and simple, as nature invariably proves to be.? The fundamental mechanism of transcription is conserved among cellular RNA polymerases, the researchers explained. Common features include an unwound regio...

Vaccine-producing 'plant-factories'

...rated in the chloroplast, when they came across an unexpected type of protein for this type of cell organ. ...ristics of glycosylate proteins. The discovery was unexpected because the literature written to date does not contemplate the presence of this type of protein in ...

Fight weeds with plant pathogens

... the use of imported insects, with no instances of unexpected or undesirable effects," says Raghavan Charudattan, University of Florida, Gainesville, FL. The bioherbicide approach utilizes native plant pathogens that are isolated from weeds and are grown to produce large numbers of infective propagules (such ...

Heart smart: new drug improves blood flow

...many people without any apparent risk factors have unexpected heart attacks and strokes. We need a revolution in vascular diagnosis, treatment and prevention. This discovery is an important step along the way." ...

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