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Tag: "worms" at biology news

Diabetes research takes wing thanks to long-lived fruit fly

...rally increases lifespan in organisms ranging from worms to flies, and maybe humans. Somehow, JNK and the insulin receptor together seem to work in tandem to affect life span. "We're learning that an organism's life span may not be limited by design," said Bohmann. "It was once thought that people and oth...

Even a little cooling helps after cardiac arrest

...alaria, for example, is caused by a parasite), the worms the scientists are investigating are not just any kind of parasite. For one, these worms, known as trematodes, must sequentially infect certain hosts to complete their lifecycle. Snails to crabs to birds might be a typical sequence for one species, ...

How healthy is that marsh? Biologists count parasites

...alaria, for example, is caused by a parasite), the worms the scientists are investigating are not just any kind of parasite. For one, these worms, known as trematodes, must sequentially infect certain hosts to complete their lifecycle. Snails to crabs to birds might be a typical sequence for one species, ...

Viral hitchhiker inhibits Wolbachia bacteria's ability to proliferate

...used by Wolbachia bacteria living in the parasitic worms associated with these diseases. The new research, led by Seth Bordenstein, an Assistant Scientist in the MBL's Program in Global Infectious Diseases, shows that a virus known as WO-B interferes with Wolbachia's ability to cause cytoplasmic inco...

Parkinson's disease mechanism discovered

...that we've found the same results in yeast, flies, worms and rat neurons, I would be very surprised if we didn't find that they were relevant in humans," she said. Bonini added that the research team's findings illustrate the power of animal models in revealing insight into Parkinson's disease. "These res...

Parasitic worms used to fight bowel disease

... developed in a way that is dependent on parasitic worms to regulate immune responses." The particular wor...p an animal model to test the effectiveness of the worms on inflammatory bowel disease and other maladies. Also, she is waiting for word on a new NIH grant t...

For the first time: Longevity modulated without disrupting life-sustaining function

...own as free radicals also unleash DAF-16. If the worms are having a good day in a favorable environment, ... DAF-2 signaling gets turned off precociously, the worms reap the benefit of increased stress resistance and double their lifespan from an average of 20 to 4...

The diversity of marine life in the Gulf of Maine region is much greater than previously thought

... of Maine not yet identified. These include small worms and other organisms living in the soft sediments that cover much of the sea floor and microscopic bacteria and viruses that live throughout the ecosystem. While most are invisible to the human eye, they are collectively major players in the web of o...

Worm hormone discovery may aid fight against parasitic disease

... biochemical level, hormone-like molecules in tiny worms called nematodes work similarly to the way in whic...blocked that hormonal signal by engineering mutant worms that couldn't manufacture the ligand, however, the mutants' development stopped before they reached ...

Some like it hot: Worms at deep-sea vents favor a fiery 45-55°C

Scientists have found that worms dwelling at deep-sea hydrothermal vents opt for te...sulfincola, a member of the Alvinellidae family of worms dwelling at ocean depths of some 2,200 meters off the Pacific coast of Washington. When the research...

Scientists discover a genetic switch that links animal growth and cancer

...nt findings took about four years to discover. The worms used in the research develop quickly, growing from...een the number and identity of genes in humans and worms allow researchers to extrapolate from worms to humans in their genetic research. ...

Extinctions linked to climate change

...asites of musk oxen," the researchers said. "These worms can now complete their life cycle in one year, instead of two, and their rising numbers are having a significant impact on musk oxen survival." In a similar interaction, Blaustein said, the mountain pine beetle in parts of the western United States ...

Carbon nanotube absorption measured in worms, cancer cells

...sorption of multi-walled carbon nanoparticles into worms and cancer cells, a breakthrough that will revolutionize scientists' understanding of how the particles impact the living environment. A team led by U-M chemical engineering professor Walter J. Weber Jr. tagged multi-walled carbon nanotubes---one o...

Worms know bad food when they smell it

...rth learning" for the worm. To find out whether worms learn from experience to avoid or seek out certain...hospital-acquired infections in humans. When the worms that had been grown only on E. coli were later introduced to pathogenic bacteria (either P. aerugin...

Algal protein in worm neurons allows remote control of behavior by light

...espond to touch by activating a reflex that causes worms to back up, was sufficient to prompt the backing b...ior to occur (in response to light) even in mutant worms that lacked the C. elegans ion channel that normally mediates backing behavior in response to touch....

Many needles, many haystacks

...s of protein binding in the cells of yeast, flies, worms and humans. Those studies have produced parts lists of molecular machines. And the data holds a wealth of information about linear motifs ?if it can be mined. The scientists distilled all of this information in a series of steps ?discarding parts of...

Looking for the genes that affect a person's level of response to alcohol

...on worms," explained Schuckit, "finding that those worms with a mutation in that gene were fairly insensitive to alcohol. We also knew that alcohol has an effect on what this gene controls, which is potassium flow. Our current results appear to show that the corollary of this gene in humans helps to cont...

New understanding of regeneration gained by Forsyth scientists

...kes them ideal for studying this process. When the worms are cut in half, the bottom section of the worm gr..., and their expression was detected throughout the worms and in regeneration blastemas, undifferentiated cells from which an organ or body part develops, con...

New technique multiplies life span in simple organisms

...y of the SIR2 gene can promote longevity in yeast, worms and fruit flies. That finding was covered widely and incorporated into anti-aging drug development programs at several biotechnology companies. Now, molecular geneticists at the University of Southern California suggest that SIR2 instead promotes a...

The Antarctic Ocean floor

...ue Country in Bizkaia, two groups of vermes or sea worms are taxonomically analysed. The aim of this is to identify the species, to find out if they are new species or belong to previously described ones. To this end, both the external and the internal anatomy of the animal are thoroughly analysed, using...

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