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Tag: "clue" at biology news

Sun exposure early in life linked to specific skin cancer gene mutation

... the cause of melanomas has been a mystery. A new clue comes from scientists at the University of North Carolina at Chapel Hill Schools of Medicine and Public Health. Their research indicates that early life sun exposure, from birth to 20 years old, may specifically increase the risk of melanomas with BR...

St. Jude study shows genes play an unexpected role in their own activation

...to put CREB to work,” Brindle said. “It is another clue to how CREB might activate the genes for enzymes that make glucose in the liver, while activating different genes in the brain that are key to learning and forming memories.” A long-term implication of this work is that one day it might be possibl...

From the deep -- Researchers find new species of sea anemone

... and comparing the anemones' genetic sequences may clue the researchers in to how the different species evolved over time....

Cure for cancer one step closer

...can play a part in the cure. Every cell contains a clue that can make a difference to tomorrow's cancer patients," he said. Queensland is well placed as a source of cancer tissue due to its diverse population, large number of aged retirees, and high-rate of some cancers, particularly melanoma. The Wesl...

Discovery could lead to better control of hemorrhagic fever viruses

...online by the journal Nature on February 7, give a clue to the high lethality of New World arenaviruses, suggest a way of reducing the severity of infection, and point the way toward a sorely needed treatment strategy. The four viruses, known as the Machupo, Guanarito, Junin and Sabia viruses, cause Bol...

Lithium builds gray matter in bipolar brains, UCLA study shows

...in the brain," she said. "This may be an important clue as to how and why it works."...

Scientists discover stage at which an embryonic cell is fated to become a stem cell

...n previously supposed but also they give us a real clue on how to manipulate embryonic cells so that they will develop with the properties of the natural stem cells of the embryo." The study also found cell fate and transcription activity is determined by the level of a methylated form of histone H3, ...

Post oak grasshoppers emerging

...ns. The chickens readily ate them, giving Behmer a clue that they are not toxic to other animals. Normally, chickens will not eat what will harm them, Behmer said. Behmer is still not sure what the Easter weekend cold snap will do to the grasshoppers' population, but he wants to study that too. Junek ...

Scientists find new genetic clue to cause of Alzheimer's disease

.... This discovery provides a completely new genetic clue about the late onset forms of this very complex disease. We are eager to investigate the role of this gene further." Scientists think that in Alzheimer's disease, amyloid precursor protein, or APP, is processed into amyloid beta protein fragments t...

Study uncovers a lethal secret of 1918 influenza virus

...ernational team of scientists has found a critical clue to how the virus killed so quickly and efficiently. Writing this week (Jan. 18, 2007) in the journal Nature, a team led by University of Wisconsin-Madison virologist Yoshihiro Kawaoka reveals how the 1918 virus - modern history's most savage influen...

Susceptibility to Crohn's disease -- an important new clue

...of Liège, Belgium, have now uncovered an important clue to the susceptibility of individuals to this disease. In a genome-wide association study with more than 300,000 single nucleotide polymorphisms (SNPs) ?DNA sequence variations occurring when a single nucleotide in the genome differs between members ...

Tiny clue reveals new path toward heart disease

...chers who led the study. Further study of this new clue could lead to novel ways to treat or even prevent the disease, the researchers said. "The ultimate goal is to determine who will develop cardiovascular disease," said lead study investigator Liyong Wang, Ph.D., a research associate at the Duke Ce...

MIT biologists solve vitamin puzzle

...or is used as a substrate," she said. One early clue to BluB's function was that a gene related to it is located near several other genes involved in B12 synthesis in a different bacterium. Still, the researchers were not convinced that one enzyme could perform all of the complicated chemistry needed t...

Mitochondrial genes move to the nucleus -- but it's not for the sex

...week's Science that they've uncovered an important clue in flowering plants. "Plants that reproduce clonally or are capable of self-pollinating have transferred more genes from the mitochondrion to the nucleus," said graduate student Yaniv Brandvain, lead author of the paper. That discovery, Brandva...

Dragonfly's metabolic disease provides clues about human obesity

... the gut microbial flora," said Marden. Another clue is that some AIDS patients, with compromised immune systems, have chronic problems with Cryptosporidium (a protozoan parasite closely related to the one found in dragonflies) that over time impairs their metabolism in a similar fashion to what Schild...

Proteins anchor memories in our brain

...inated, avoiding the plague of autoimmunity. A clue to how the elimination process is controlled came from previous work involving a protein in the cell nucleus called Aire (for autoimmune regulator), which regulates the expression of some 300 to 1,000 antigens in the thymus. Humans and mice lacking t...

Autoimmune disease triggered if T cells miss a single protein early on

...inated, avoiding the plague of autoimmunity. A clue to how the elimination process is controlled came from previous work involving a protein in the cell nucleus called Aire (for autoimmune regulator), which regulates the expression of some 300 to 1,000 antigens in the thymus. Humans and mice lacking t...

West Australian fossil find rewrites land mammal evolution

...alian Kimberley has been identified as the missing clue in vertebrate evolution, rewriting a century-old theory on how the first land animals evolved. Monash University PhD students Mr Erich Fitzgerald and Mr Tim Holland were part of the research team, led by Museum Victoria's Head of Science Dr John Lon...

Scientists find a key to immune system's ability to remember

...l team of scientists has ferreted out an important clue to how the key cells of the immune system are able to remember old foes and quickly mount a response to hold them at bay. Writing this week (Oct. 23, 2006) in the Proceedings of the National Academy of Sciences (PNAS), a team of researchers led by...

Beauty and the brain

...and fitness ?unusually protuberant eyes might be a clue to disease, for example ?and so is a kind of shorthand for the value of a potential mate. But whereas that explanation makes intuitive sense when it comes to human faces, Winkielman said, it strains credulity when applied to inanimate objects or a...

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