Tag: "nematode" at biology news
Research into the sense of touch in worms wins Eppendorf/Science Prize
...them. Goodman's essay explains her research on the nematode
worm's sense of touch. Known as Caenorhabditis elegans, the entire cellular anatomy of its nervous system is known. Scientists hope to apply their knowledge about the nematode's sense of touch to larger and more complex animals. Goodman grew up in Le...
Insects implicated in the evolution of new human infectious diseases
...ir of diseases in invertebrates, such as fleas and nematode
worms, which are currently harmless to humans, but... luminescens, which kills insects with the help of nematode
worms. This family of bacteria are known as Photorhabdus (glowing rods) because they are the only t...
Reed biology professor receives $227,500 for E. coli research
...p a small animal model of EPEC infection using the nematode
Caenorhabditis elegans, a seed grant from the Medical Research Foundation of Oregon, and a grant of $143,667, also from the NIH in 2001. The resources provided by these grants have allowed students to do top notch research at a small liberal arts col...
U-M researcher examines the cell's housekeeping habits
...s in which autophagy was blocked in the C. elegans nematode
worm resulted in dramatically shorter life spans for the 1 millimeter creatures. Conversely, more autophagy may prolong life. This fits with findings that caloric restriction can extend the life span in rats, since near-starvation triggers more autop...
'Blind' cells see the light; maybe someday humans will, too
...nisms that normally don't have vision, such as the nematode
worm C. elegans," Trauner said. "Taking this from a chemical novelty to showing that it works in a biological system is a real breakthrough." Kramer, Trauner and their colleagues will report their results on Nov. 21 in a paper published online in the...
Studies in Royal Society journals include stress in birds and depletion of medieval fish stocks
... to reduced fitness. However, some mutants of the nematode
Caenorhabditis elegans have a doubled lifespan without obvious side effects on development and fertility. We made such long-lived worms directly compete with normal worms over a number of generations. The apparently healthy long-lived worms, known ...
Study in Royal Society journal on possible genetic factors in social responsiblity
...se Apodemus sylvaticus, with those of its specific nematode
parasite, Heligmosomoides polygyrus. Our results provided evidence that both species survived similarly to the Quaternary ice ages in Spain, Italy and Sicily, and both species recolonised Western Europe from Spain at the end of the last ice age (10,0...
Save up your energy reserves for a longer life!
...and ATP correlates well with increased lifespan in nematode
worms. ATP is routinely used by the body as a sour... Using an array of genetic and molecular tricks on nematode
worms, the team demonstrated that animals with extra copies of the AMP-1 enzyme lived on average 13%...
Prediction of gene function in mammals
... applied to simple organisms such as yeast and the nematode
worm C. elegans. In yeast and other simple organisms, the expression of genes with similar functions tends to be coordinately regulated. In these organisms, identifying correlated expression of known and unknown genes can help predicting the function...
NC State gets $1.59M grant to map genome of parasitic worm
...ers interested in certain aspects of the root-knot nematode
how it develops, establishes a host-parasite inte...ific information about the parasite. The root-knot nematode
will be the first parasitic nematode
to have its genome sequenced, Opperman says. Arguably the singl...
Femtosecond laser technique opens new opportunities for research on neural regeneration
...study," he said. C. elegans, an almost microscopic nematode
or roundworm, has become an extremely important system for biomedical research. Geneticists have identified thousands of genes in the worm that have counterparts in humans. A relatively simple organism with a short generation time, reproducing in jus...
New technique provides insights into gene regulation
...the number found in the significantly less complex nematode
worm, C.elegans, a microscopic ringworm. How very different organisms develop from comparable numbers and types of genes has been a major question since the genetic similarity was discovered. Scientists are trying to understand what turns a gene "...
The simple truth: Animal development not as complicated as it seems
...ompared the known cell lineages of three different nematode
worms and a sea squirt with those randomly generat...r albeit simplified to that of humans, while the nematode
worms are more distant relatives of ours. Yet, they have all evolved toward a similar level of deve...
Opposing fat metabolism pathways triggered by a single gene
...that when nhr-49 was absent, the lifespan of the nematode
was reduced by more than 50%, and the animal displayed numerous gross abnormalities in the gut and gonad. This was accompanied by unusually high fat content in the larvae. They further showed that deletion of nhr-49 changed expression of 13 genes ...
Scientists discover how climate change causes the simultaneous boom or bust of multiple populations
... grouse chicks. Warm and wet conditions allow the nematode
population to increase and to climb onto the stalks of heather. Wet and relatively cold Mays followed by warm and relatively dry Julys result in an outbreak of nematodes and so, when the grouse eat the infested heather, they rapidly become diseased....
Plants respond similarly to signals from friends, enemies
...obia and contrary to popular belief, the root-knot nematode
signals plants from a distance and therefore does ...nals between plants and nematodes, even though the nematode
provides no benefit to its host. Root-knot nematodes form feeding cells so-called giant cells in t...
Stealth worms may improve insect pest control
...the pockets behind the bark of trees, the juvenile nematode
waits for (or sometimes actively seeks) an unsuspe... natural openings - mouth, anus, spiracles. Or the nematode
may enter the host directly by using a dorsal tooth. Once inside the insect, the nematode
Yale scientists find microRNA regulates Ras cancer gene
...ecular, cellular and developmental biology on the nematode
round worms, C. elegans. He found that these worms require let-7 RNA for normal development to occur. Without it, cells do not stop dividing and fail to differentiate into the normal structures of the worm instead they make an excess of their cells....
A bacterial genome reveals new targets to combat infectious disease
...he Wolbachia bacterium is so crucial to its host nematode
that apparently eradicating it with antibiotics se...ientis strain within Brugia malayi , a parasitic nematode
responsible for lymphatic filariasis. This Wolbachia genome is small, only about a million base p...
Signs of aging: Scientists evaluate genes associated with longevity
...nding of human aging. "Many processes involved in nematode
aging may have fundamental and analogous roles in humans," Dr. Brooks-Wilson explains. "The human orthologs of some gene family members identified in this study have been associated with human age-related diseases." SAGE involves the isolation of s...
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