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Tag: "important" at biology news

Researchers reveal the infectious impact of salmon farms on wild salmon

...m salmon to whales to seabirds. Every commercially important fish is either directly or indirectly dependent on herring." "Previous studies have been dismissed by industry, but past studies haven't looked at such large samples or the spatial aspect," says fisheries biologist Ransom Myers of the University of ...

Sea skate experiment sheds light on human cell transport

...panying editorial. Goldstein said the results are important for a few reasons. Because skate red blood cells ...Goldstein said. "If so, this research points up an important area for future research." ...

Female sex hormones play a vital role in defense against sexually transmitted diseases

...st benefit from the vaccine. Work in this area is important because one in every four sexually active adults is seropositive for HSV-2 and women are much more susceptible than men. "The results directly indicate that the hormonal conditions that provide protection against primary exposure to sexually transmi...

Yale Scientists Find MicroRNA Regulates Ras Cancer Gene

...and animals contains sequences encoding microRNAs, important regulators of development, that control processes determining cell type and cell death. "The let-7 microRNA regulates Ras by binding to the message for Ras and likely inhibits translation of the Ras protein," said Slack. "The microRNA does not rever...

Mouse brain tumors mimic those in human genetic disorder

...tual tumorformation suggests that these events are important for the developmentof tumors," Gutmann says. "These findings raise the possibility thattargeted therapies for NF1 brain tumors may involve agents that preventthe supply of growth promoting factors provided by new blood vesselsand microglia."Next, the...

New Clues Add 40,000 Years to Age of Human Species

...Turkana Basin, a setting that has provided so much important evidence regarding human evolution,?says Brown. “However, while our research pushes back our time of origin," he adds, “most cultural aspects of humanity appear much later in the record—only 50,000 years ago—which would mean 150,000 years of Homo ...

New imaging method gives early indication if brain cancer therapy is effective, U-M study shows

...tional methods would show a response. "This is an important issue in terms of patient quality of life. Do you want to go through seven weeks of treatment only to find two months later that it had no effect? Using MRI tumor diffusion values to accurately predict the treatment response early on could allow some...

Gene variations explain drug dose required to control seizures

...agnosed each year. Phenytoin and carbamazepine are important first-line anti-epileptic drugs that are widely prescribed throughout the world, Goldstein said. Both drugs commonly spur adverse reactions. "Physicians have long recognized that patients with the same condition differ in their responses to the same...

Scientists collaborate to assess health of global environment

...n a particular area, Mooney said. "This is really important because the global view gives averages, and global averages may be misleading," he said, noting that different ecosystems face different issues--overfishing in the Caribbean, for example, versus groundwater usage in Chile's Atacama Desert or wood fue...

Enzyme shown to help protect genomic stability

...nto the mechanisms of gene silencing could provide important guideposts for new approaches to retarding aging or treating cancer. Now, an investigation led by researchers at The Wistar Institute has shown that an enzyme known as Ubp10 plays a vital role in protecting the telomeric regions of the genome from p...

Scientists decipher genome of fungus that can cause life-threatening infections

...platform for the further study ofthis increasingly important pathogen, but the data from the two strainsmay provide insight into what determines virulence," says BrendanLoftus, a scientist at The Institute for Genomic Research (TIGR) who isthe first author of the Science paper. "Although the two Cryptococcusst...

Purdue proves concept of using nano-materials for drug discovery

...proteins in a fundamentally new way, which is very important because many future drugs to treat diseases will likely work by controlling proteins in cell membranes." Researchers tested the devices with an enzyme that produces a blue color when combined with a liquid that contains molecules small enough to eas...

Researchers identify target for cancer drugs

...t of this new research is a protein called Akt, an important player in the regulation of cell division and surv...ers from the Sabatini lab report on discovering an important missing piece of the activation process. This missing component, a molecule called mTOR, is a prote...

Plant hemoglobins: Oxygen handlers critical for nitrogen fixation

...itrogen-poor soils. Symbiotic nitrogen fixation is important for sustainable agriculture and contributes millio... the study indicate that symbiotic hemoglobins are important for oxygen transport and energy metabolism in plant root nodules. Furthermore, these proteins help t...

Scientists rid stem cell culture of key animal cells

...h stem cells grow. The mouse feeder cells were an important ingredient in the mix of culture materials require...aring the feeder cell-conditioned medium." "It is important that the culture of human ES cells be simplified so that the average scientist can use them without ...

Essential mangrove forest threatened by cryptic ecological degradation

...d sea that are ecologically and socio-economically important for local people in tropical countries on all cont...on of the most vulnerable, most socio-economically important and most aesthetic species is masked by the expansion of less important species. The authors emphasi...

Protein Packages Found To Activate Genes; May Be What Regulates Development And Disease

...who is director of the institute. "One of the most important is the mystery of how genes are turned on. The ability to take global views of (chromosome packaging) in human cells holds tremendous promise for unraveling the mystery." To begin unraveling this mystery, the researchers studied large regions of the...

Vital step in cellular migration described by UCSD medical researchers

...fessor of medicine. "Since cell migration plays an important role in the immune response, as leukocytes move to...and beyond, cell migration is a complex, extremely important process that is not completely understood by researchers. In order to move, a cell must be polarized...

U-M scientists find genes that control growth of common skin cancer

...bition ofthe Hedgehog pathway. The new finding has important implications forthe treatment of this widespread disease.Their report will be published in the Jan. 15 issue of Genes &Development, but is available now on the journal's Web site . Basal cell carcinoma (BCC) affects over 1,000,000 Americans ea...

Weill Cornell Research Reveals Secrets Of Trafficking Within Cells

...nformation healthy and strong. It's an incredibly important life process, and now researchers at Weill Medical... conditions. He pointed out that clathrin is also important to cellular mechanisms other than endocytosis, including those occurring deep inside the cell. "Now...

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