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Tag: "clues" at biology news

Faults in newly discovered breast stem cells may lead to tumours

... of the breast stem cell is also likely to provide clues about how breast cancer develops and how rogue cells evade current therapies. Under normal circumstances, the newly identified breast stem cell will produce healthy tissue. But it is believed that an accumulation of genetic errors, perhaps combined...

Soil-bound prions that cause CWD remain infectious

... 13 available genomes of CGD pathogens may provide clues to virulence properties that they share in common," according to the article. ...

Scientists discover a new disease-causing bacterium in an immune-compromised patient

... 13 available genomes of CGD pathogens may provide clues to virulence properties that they share in common," according to the article. ...

The giant protein titin helps build muscles

...links the tails in a unique way that may give some clues to sarcomere assembly. The Gautel lab used advanced microscope techniques to watch the molecules link to each other in live cells. "We knew that telethonin acted as a sort of 'cap' or 'bolt' at the end of the titin molecule," Gautel says. "What we c...

Lizard 'third eye' sheds light on evolution of color vision

...au hopes to pursue these structures to obtain more clues about how our photoreceptor cells, the rods and cones, came about. As he says, he's most curious about how the same function can be achieved in different ways in different animals. ...

Researchers now able to look deep into heart to view triggers of a heart's beat

...to making centrosomes, he said. They may also hold clues to the evolutionary origin of the Hymenoptera. Because the males of these insects develop from unfertilized eggs, they have half the number of chromosomes that females have--in technical terms, the males are haploid and the females are diploid. Thi...

Insects that produce males from unfertilized eggs reveal a surprising cellular feat

...to making centrosomes, he said. They may also hold clues to the evolutionary origin of the Hymenoptera. Because the males of these insects develop from unfertilized eggs, they have half the number of chromosomes that females have--in technical terms, the males are haploid and the females are diploid. Thi...

Scientists reveal how deadly toxin hijacks cells

... through which botox penetrates cells by gathering clues from earlier research that pointed to the potential importance of tiny neural storage bins known as "synaptic vesicles." Situated at nerve endings, synaptic vesicles continually work to store and release neurotransmitters. Dozens of proteins, includ...

New possibilities to fight pests with biological means

...cents that the plants release after damage offered clues as to which classes of enzymes might be important for scent production. The researchers isolated various genes encoding terpene synthases, the enzymes that produce these scents. One of these genes, TPS10, produced the exact bouquet of nine scent co...

Cholesterol gets 'thumbs up' for role in digit development

...secrets of the developing embryo and could provide clues for preventing devastating birth defects. ...

Warbling whales speak a language all their own

... moans, cries, and chirps in the whales' songs for clues to the information being conveyed. Buck is an electrical engineer who specializes in signal processing and underwater acoustics at the University of Massachusetts Dartmouth, and Tyack is a biologist at Woods Hole Oceanographic Institution in Massachu...

Marine mammals are on the frontline of failing ocean health

...human health. "Marine mammals are providing early clues of our unseen impact on the sea," says Paul Sandifer, Chief Scientist for the new Oceans and Human Health Initiative in the US National Oceanic and Atmospheric Administration (NOAA). "There is mounting evidence that our activities on land are taking...

UCLA scientists find male gene in brain area targeted by Parkinson's

...l of Medicine at UCLA. "Our findings may offer new clues to how the disorder affects men and women differently, and shed light on why men are more susceptible to the disease." In 1990, British researchers identified SRY as the gene that determines gender and makes embryos male. Located on the male sex chr...

Taking a bite out of a fellow worker helps wasps recruit new foragers

... other scientists study social insects looking for clues about how social behavior evolved and how it is maintained since there are elements that are shared among all social animals. Social aggression is one such characteristic that is almost universal among animal groups ranging from insects to primates ...

Marsupial genome reveals insights into mammalian evolution

...ts organization is closer to fish and birds. "The clues we unearthed by looking at different genomes are also helping us to understand how our own intricate immune system evolved from the relatively simple immune system seen in lower vertebrates such as birds and fish," says Belov. "Interest in marsupial...

Technique offers new view of dynamic biological landscape

...actions could also give pharmaceutical researchers clues to the magnitude of possible side effects of drugs under development. The development of combination drug therapies, such as for cancer or viruses, could also benefit from the E-MAP approach. "In such cases, clinicians want to know whether -- if dr...

How E. coli bacterium generates simplicity from complexity

...lism. In a surprise about E. coli that may offer clues about how human cells operate, the PNAS paper reports that only a handful of dominant metabolic states are found in E. coli when it is "grown" in 15,580 different environments in computer simulations. "When it comes to genomes, a great deal of compl...

Overfishing may drive endangered seabird to rely upon lower quality food

...ate feathers and preserved into the feathers ?give clues to the birds' diet. More nutritious food items, such as sardines, anchovies and squid, are distinguished in the feathers by higher levels of nitrogen isotopes. Less valuable food sources, including marine invertebrates such as krill, are signaled by ...

Recreating 'Flowers for Algernon' with a happy ending

... Second, he trained the mice to memorize spatial clues in order to navigate a water maze and swim to a platform. The normal animals learned to find the platform in seven days; the NF1 mice took 10. After receiving statins, the NF1 mice outraced the normal mice. Third, Lee tested coordination by t...

Scientists narrow the time limits for the human and chimpanzee split

...elation to our environment, could provide valuable clues for understanding -- in a more general sense -- the evolution of intelligent life." Walker, a paleoanthropologist and Evan Pugh Professor of Biological Anthropology and Biology at Penn State, has discovered and studied fossil hominids and other prim...

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