Tag: "femur" at biology news
Protein fragments sequenced in 68 million-year-old Tyrannosaurus rex
...aps of dinosaur protein were wrested from a fossil femur
discovered by John Horner, of the Museum of the Rockies, and colleagues in 2003 in Hell Creek Formation, a barren fossil-rich stretch of land that spans several states, including Wyoming and Montana. Schweitzer and colleagues reported in 2005 that th...
Sphingolipids with therapeutic ends
...nocytes are undifferentiated macrophages from the femur
of mice. These monocytes were incubated in Petri dishes on a suitable culture to which, moreover, a growth factor had been (such as M-CSF cytoquine). After 4 or 5 days in culture, the macrophages became differentiated and were prepared for their stu...
Neanderthal genome sequencing yields surprising results and opens a new door to future studies
... and their colleagues extracted all the DNA in the femur
bone of a 38,000-year-old male Neanderthal specimen from Vindija, Croatia. Using a combination of the sequencing technologies deployed in the Human Genome Project, plus a new massively parallel pyrosequencing technology, in which enormous amounts of...
New hominid species may be early version of Homo sapiens
...eton from a dentally adult individual (LB1). Using femur
length to extrapolate height, the stature of the skeleton was estimated to be 106 cm. Other notable features were the absence of a chin in the jawbone and a very small cranial capacity. In addition to LB1, fragments of eight other individuals were fo...
Meet the earliest baby girl ever discovered
...ent) and height of Australopithecus afarensis. The femur
(thigh bone), the tibia (shinbone) and the foot of the girl preserve evidence that this ancient species walked upright effectively even at the age of three. However the two shoulder blades are similar to those of gorillas. The fingers are also long a...
No hobbits in this shire
... torsion in the arm and the muscle markings on the femur
and tibia in the leg indicate an individual with movement disabilities. While other skeleton parts were found with LB1 in the same cave, no other cranial parts attributed to this population were unearthed and LB1 is the only reasonably complete sk...
First high-flex knee replacement implant shaped specifically to fit woman's anatomy
...e joint is composed of three bones: the end of the femur
(thighbone), the top of the tibia (shinbone) and t...ate-sized implant, surgeons measure the end of the femur
from front to back and from side to side. Women's knees typically are narrower from side to side, an...
Rice bioengineers pioneer techniques for knee repair
...ey shaped wedges of cartilage that sit between the femur
and tibia and absorb the compressive shock that the bones undergo during walking and running. Over the past 18 months, he and his students Adam Aufderheide and Gwen Hoben have perfected methods of growing meniscus-shaped pieces of cartilage, but they...
New model of prostate cancer helps identify promising pain treatment
...ulnerable to developing prostate cancer. While the femur
is the biggest bone in the body -- and therefore the easiest to study in this case -- prostate cancer can affect any bone in the body. It took about a week for the prostate tumors to develop in the mice. At that point, the researchers began treating ...
Dinosaur fossil bone leads to gender, age determinations
...il, Schweitzer's team compared the tissue from the femur
of the T. rex to that taken from leg bones of more...produce medullary bone, its presence in the T. rex femur
indicates that this fossil was a female, and probably one who died toward the end of her laying cycl...
Neandertal femur suggests competition with hyenas and a shift in landscape use
...n University in St. Louis, conclude that the human femur
fragment found in 2002 in the cave of the Rochers-...ertals and early modern humans. However, this is a femur
bone from a Middle Paleolithic Neandertal. It shows in the shape of the femur
that a shift to greate...
PNAS highlights for the week of May 2 - 6
... in French Analysis of a 40,000-year-old human femur
found in France suggests that Neandertals competed with hyenas for food and shelter. siRNA for Cancer Treatment Small interfering RNA (siRNA) may represent a unique class of cancer chemopreventive agents. Modern Updates to Peasant Economy Model T...
NC State scientist finds soft tissue in T. rex bones
...s, has succeeded in isolating soft tissue from the femur
of a 68-million-year-old dinosaur. Not only is the...ned when they removed the minerals from the T. rex femur
fragment. The removal process left behind stretchy bone matrix material that, when examined microsco...
Signaling protein builds bigger, better bones in mice
...ology called micro-computerized tomography to scan femur
(leg) bones from mice that inherited the FABP4-Wnt...ntrol mice. (Note to editors: An image showing the femur
scan comparison is available.) "It was a very exciting moment the first time we saw scans showing in...
The oldest Homo sapiens
... and obtained more of Omo I, including part of the femur
(upper leg bone) that fit a piece found in 1967. They also found animal fossils and stone tools, and studied local geology. The Nature study includes initial results from those expeditions. The fossil record of human ancestors may go back 6 million...
Increased risk of osteoporosis associated with gene that one in five people have
...r than normal bone density in regions of the upper femur
near the hip joint. "The data suggest that this particular variation of the gene produces an enzyme that breaks down estrogen faster than usual, leading to low serum estrogen levels and high levels of estrogen metabolites," Villareal says. "Low leve...
NSBRI news: Bone-quality assessment tool for space and Earth
...he greatest loss in the lower extremities like the femur
and hip. The culprit is microgravity, which causes bone loss in critical areas and leaves bones susceptible to fracture upon return to Earth. Space travelers are not the only demographic concerned with bone loss. According to the National Osteopo...
How running made us human
...stabilization in running" because they connect the femur
the large bone in each upper leg to the trunk. Because people lean forward at the hip during running, the buttocks "keep you from pitching over on your nose each time a foot hits the ground." Long legs, which chimps and australopithecines lack...
Plentiful fossils of dinosaur contemporary allow population study
...cimens have both of the two most common variables, femur
length and femur
width. Most have more missing variables than stuff you are looking for." Casey said that such preser...