Tag: "skeleton" at biology news
Research shows skeleton to be endocrine organ
...skeleton. Theyve shown for the first time that the skeleton
is an endocrine organ that helps control our sugar...y changes our understanding of the function of the skeleton
and uncovers a crucial aspect of energy metabolism, said Gerard Karsenty, M.D., Ph.D., chair of the ...
Weizmann Institute scientists discover a control mechanism for metastasis
...nges in the cellular structure. The cells internal skeleton
an assembly of densely-packed protein fibers comes apart and the protein fibers then form thin threads on the outside of the cell membrane that push the cell away from its neighbors. In addition, a number of protein levels change: some get produced...
How cells change the pace of their steps
...ical reactions, some of which remodel the internal skeleton
and others that add and remove adhesion points at ...crisscrossed protein fibers that forms an internal skeleton
in a cell. The cytoskeleton is also involved in cell motility through its attachments to discrete ad...
New genetic data overturn long-held theory of limb development
...es to oranges because each retains portions of the skeleton
lost by the other," he said. "Just as tetrapods went off and did something crazy with their fin by adding to it, zebrafish went off and did something crazy by losing part of their fin. "So the innovation here is about a pattern of loss of gene activi...
Anthropologist given one of nation's top scientific honors
...ve signed since 1863." Lovejoy reconstructed the skeleton
of "Lucy" a near-complete fossil of a human ancestor that walked upright more than three million years ago. He also has been active in paleodemography and human origins modeling, including the theory that upright walking was closely tied to monogamou...
Healthy reefs hit hardest by warmer temperatures
...results in a white band of tissue or exposed coral skeleton
that moves across a colony as infection progresses. (White isnt the only color of diseased coral other syndromes include black band, yellow blotch and dark spots.) Scientists from the Australian Institute for Marine Sciences made yearly visits to ...
AGU Journal Highlights -- April 16, 2007
...ralline red algae, Halfar et al. used the calcitic skeleton
of one alga to generate a 117-year record of marin... bands represent yearly cycles of growth. The alga skeleton
contained oxygen isotope patterns that indicate freshening and warming of surface waters after the m...
Weizmann Institute scientists discover a key player in embryonic muscle development
... this signal does WIP hook the actin fibers in the skeleton
up to the myoblast recognition protein, allowing cell fusion to proceed. The WIP protein has been conserved evolutionarily. In other words, versions of it exist in all animals, from microorganisms such as yeast, through worms and flies, and up to h...
'Fusion' protein found by Johns Hopkins researchers
...and subsequently tells the cell where to build its skeleton
railway. "In this role, Solitary acts not like the delivery truck, but more like a construction site foreman," says Chen. "It's told where the cell barrier needs to be broken, then directs the building of a delivery road so that the molecular supplie...
First impressions: Computer model behaves like humans on visual categorization task
...his model of immediate recognition may provide the skeleton
of a theory of vision. The huge task in front of us is to incorporate into the model the effects of attention and top-down beliefs." The team is now exploring what happens after the first feed-forward sweep, during the next 200-300 milliseconds of ob...
An architectural plan of the cell
Like our body every cell has a skeleton
that provides it with a shape, confers rigidity and protects its fragile inner workings. The cytoskeleton is built of long protein filaments that assemble into networks whose overall architecture and fine detail can only be revealed with high resolut...
Researcher to study astronaut bone loss for space biology agency
... will require that the structural integrity of the skeleton
be maintained." Astronauts who spend weeks or months in the weightless environment of space a state called skeletal unloading lose bone because, in the absence of gravity, they lose the ability to make enough new bone cells to replace old cells t...
Bones in motion: Brown scientists to create new 3-D X-ray system
...be able to see through skin and muscle and watch a skeleton
move in 3-D," said Elizabeth Brainerd, the Brown University biology professor overseeing development of the new system. "Imagine animated X-ray movies of flying bats or flexing knees. It's very cool technology that is also very important from a biome...
Paleontologists discover most primitive primate skeleton
...-old fossils, including the most primitive primate skeleton
ever described. In the two-part study, an extensi...er, analysis of a more complete and well-preserved skeleton
by Bloch and his team altered this idea. "These fossil finds from Wyoming show that our earliest pr...
Researchers urge monitoring of bone health during chemotherapy
.... student in Weilbaecher's lab. "Strengthening the skeleton
would not only help prevent osteoporosis and fractures but also might give patients a survival advantage." In the laboratory mice studied, G-CSF increased the number and activity of bone cells called osteoclasts, which resorb bone material as part of...
Shoulder ligament a linchpin in the evolution of flight
...r. Then Baier hit the fossil record, studying the skeleton
of Archaeopteryx lithographica, considered by many paleontologists to be the first bird. Baier even traveled to Beijing to examine the fossilized remains of Confuciusornis, Sinornithoides youngi and Sinornithosaurus millenii, close relatives of moder...
Ancient ape ruled out of man's ancestral line
...ent layers, it is the most complete hominid fossil skeleton
ever found. Little Foot is of the genus Australo...mediately above and below the body, they dated the skeleton
at around 2.2 million years old. Their findings, published in the American journal Science, are co...
Neanderthal genome sequencing yields surprising results and opens a new door to future studies
...nment missions" In the summer of 1856, a partial skeleton
of a hominid was found at the Feldhofer Cave in the Neander Valley of Germany. This skeleton
would eventually be dubbed the "Neanderthal" man and its discovery generated enormous public curiosi...
Carnegie Mellon scientist plays key role in unveiling sea urchin genome
...earchers can actually watch this amazing embryonic skeleton
form. Specifically, they can look at the embryonic skeleton
to see how it has been perturbed by certain genetic knockouts. Ultimately, this work could enable re...
Fossils of ancient sea monster found in Montana
...esiosaurs are not often found with the rest of the skeleton
because they are one of the first parts of the body to fall off after death, and because they are relatively small and fragile compared to the rest of the animal, Druckenmiller said. Ken Olson said he and his son were digging in Bearpaw Shale on Bur...
1 2 3 4 5