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Tag: "tells" at biology news

Yellowstone microbes fueled by hydrogen, according to U. of Colorado study

...old form of metabolism.That's important because it tells us about the history of life onEarth," he said. "And if it works this way on Earth, it's likely tohappen elsewhere. When you look up at the stars, there is a lot ofhydrogen in the universe."...

Newly-discovered class of genes determines ?and restricts ?stem cell fate

...al function a "biological capacitor," because Pax3 tells the cell: Get ready to go, but at the same time won't let it proceed." Pangenes Express Behavioral Qualities of Pan and Peter Pan Epstein notes that this research is conceptually new since he suggests that a single gene can both tell a cell what it...

Antibiotic Resistant Bacterium Uses Sonar-like Strategy to “See?Enemies or Prey

...oreign cells.The second substance reports back and tells the Enterococcus to makethe toxin. If no cells are in the area, the first substance sticks tothe second, preventing it from reporting back to the Enterococcus, andas a result, no toxin is made. According to Gilmore, “These bacteriaare actively probin...

Mouse brain tumors mimic those in human genetic disorder

... few monthsin mice and after a few years in humans tells us there may be growthsignals that are produced early in life, which are critical for tumorformation and expansion," Gutmann explains.Optic pathway gliomas in humans are typically surrounded by bloodvessels and microglia, which are immune system cell...

Solution to Pollution: New Bacteria Eats Toxic Waste

...nt in the mycobacterium. “Putting together genomes tells us a lot about the history of the world and may even help us with its future,?said Joanne Hughes, a Utah State Biology professor. The Department of Energy will sequence the genetic material of the microbes, and the researchers will then participate ...

Scientists discover the cellular roots of graying hair

...ns that knock out Bcl2 activity, Fisher says.“This tells us there is a requirement for Bcl2 in normal hair folliclecycling,?adds Fisher. “So the question is: what in the hair follicleis signaling the stem cells that is absent when aging occurs and thestem cells die off? Now we have a much more refined way ...

Fundamental Finding Yields Insight into Stem Cells, Cancer; Opens Door to Drug Discovery

...ns that knock out Bcl2 activity, Fisher says.“This tells us there is a requirement for Bcl2 in normal hair folliclecycling,?adds Fisher. “So the question is: what in the hair follicleis signaling the stem cells that is absent when aging occurs and thestem cells die off? Now we have a much more refined way ...

Weizmann Institute scientists develop a new approach for directing treatment to metastasized prostate cancer in the bones.

...ns that knock out Bcl2 activity, Fisher says.“This tells us there is a requirement for Bcl2 in normal hair folliclecycling,?adds Fisher. “So the question is: what in the hair follicleis signaling the stem cells that is absent when aging occurs and thestem cells die off? Now we have a much more refined way ...

Plants defy Mendel's inheritance laws, may prompt textbook changes

... grandparents," Pruitt said. "Our genetic training tells us that's just not possible. This challenges everything we believe. "We've done a lot of experiments, described in this paper, that show none of the simple explanations account for this skipping of generations by an inherited trait." The scientists...

Defenseless plants arm themselves with metals

...acid is not initiating the pathogen response. That tells us some part of the pathway doesn't sense salicylic acid - that the signal is blocked," he said. "It's like yelling into the phone louder and louder, but no one can hear it." Salt and his colleagues also show in the current study that salicylic acid...

The circadian clock: Understanding nature's timepiece

...n cells less than half the size of a pencil eraser tells you when to wake up, when to be hungry and when it's time to go to sleep. The same cells also cause you to be disoriented after you've flown across multiple time zones. The human circadian clock, comprised of about 20,000 time-keeping cells, has mys...

Gene keeps neural cells on correct developmental path

... "REST keeps the brake on lightly until a trigger tells embryonic stem cells it's time to make a neuron," Mandel said. The cell then triggers the expression of an ensemble of genes that coordinates nervous system development by removing REST in three distinct phases, ending with shutting down the REST gen...

Science study holds implications for gene therapy and stem cell biology

...ersity in Germany, reveals important evidence that tells us more about how blood forming stem cells regenerate. On the other hand, scientists offer caution in regards to the side effects associated with genetic engineering of stem cells. The study, whose lead author is Christopher Baum, MD, an adjunct ass...

Primates on the brink

...o are under extremely grave threat. "All evidence tells us that the first extinctions among Africa's primates will occur among the red colobus," said Thomas Butynski, director of CI's Eastern Africa Biodiversity Hotspots Program. "Miss Waldron's red colobus in Ghana and Ivory Coast, and Bouvier's red colo...

Second messenger NAADP shows fast, dose-related impact on satiety cycle

...eating. Cholecystokinin is a first messenger that tells cells to release digestive enzymes in the pancreas...zymes are released and the more quickly your brain tells you that you're full ?or at least satisfied. Indeed, it also could be a potential drug for the treat...

Scientists discover global pattern of big fish diversity in open oceans

...rn as plankton. This study is just really neat. It tells us something about the connection of diversity and ocean structure and it shows that human activity is changing those patterns for the largest fish." Hotspots for Conservation? These open ocean hotspots appear vitally important for many different s...

Proteomics brings researchers closer to understanding microbes that produce acid mine drainage

...anagement at UC Berkeley. This technique not only tells her and her colleagues what genes are expressed as proteins in each bacteria, but also how much of each is produced - the key to understanding the role each bacterial species plays in the biofilm community. "Genomes tell you about the genetic potent...

Researchers feed tiny pills of RNA to planarians to identify genes essential for regeneration

...ntial to regeneration, but not homeostasis. "This tells us that separate genetic pathways for regeneration and homeostasis must exist," Sánchez Alvarado said. "It's a huge step forward for us and opens the possibility of systematic molecular studies to find the genetic cause of regenerative processes in a...

Multi-species genome comparison sheds new light on evolutionary processes, cancer mutations

...e University of California at San Diego. "Science tells us that the most effective tool we currently have to understand our own genome is to compare it with the genomes of other organisms. With each new genome that we sequence, we move closer to filling the gaps in our knowledge," said Dr. Ostrander, who ...

Fruit fly studies open new window on cancer research

...and slow down the growth of tumours. This research tells us more about the way insulin works and so it is furthering our understanding of processes associated with diabetes as well as cancer. We're fortunate that there are a number of groups with clinical interests in these areas in close proximity to us,...

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