Femur in Biological News

Adiponectin is a metabolic link between obesity and bone mineral density

... associated with low bone mass and osteoporosis. The strength of the femur neck, representing the hip, was also weaker in both females and males ... adiponectin. Serum adiponectin levels were inversely correlated with femur bone mineral content, further emphasizing that a high level of adiponectin ...

Genetic sequencing of protein from T. rex bone confirms dinosaurs' link to birds

... of a 68-million-year-old Tyrannosaurus rex protein from the dinosaur's femur confirms that T. rex shares a common ancestry with chickens, ostriches, ... alligators. The dinosaur protein was wrested from a fossil T. rex femur discovered in 2003 by paleontologist John Horner of the Museum of the ...

Discovery raises new doubts about dinosaur-bird links

... kept pointing to birds as having descended from dinosaurs was similarities in their lungs," Ruben said. "However, theropod dinosaurs had a moving femur and therefore could not have had a lung that worked like that in birds. Their abdominal air sac, if they had one, would have collapsed. That ...

Babies born to native high-altitude mothers have decreased risk of low birth weight

... and three months post-partum. They also tracked fetal growth across pregnancy using ultrasound to measure fetal head and abdominal circumference, femur length and estimated fetal weight. The study found the following: At sea level, the changes in uterine artery size during pregnancy were about ...

Low-gravity training machine reduces joint, muscle impacts, says CU-Boulder study

... high-altitude training base in Font-Remeu, France. Radcliffe is trying to stay in top running shape while recovering from a stress fracture in her femur in time for the 2008 Olympic women's marathon on Aug. 17, according to the London Telegraph. Kram and Grabowski have begun a follow-up study of ...

Potential therapy discovered for hypophosphatasia, a congenital form of rickets

... of the mice, the treated mice maintained a healthy rate of growth and apparent well being, as well as normal bone mineral density (BMD) of the skull, femur and spine. In fact, complete preservation of skeletal and dental structures were observed after 15 days, and bone lesions were still not seen after ...

Neandertal femur suggests competition with hyenas and a shift in landscape use

... University in St. Louis, conclude that the human femur fragment found in 2002 in the cave of the ... 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 greater mobility had already ...

NC State scientist finds soft tissue in T. rex bones

... of Natural Sciences, has succeeded in isolating soft tissue from the femur of a 68-million-year-old dinosaur. Not only is the tissue largely intact, ... by what actually happened when they removed the minerals from the T. rex femur fragment. The removal process left behind stretchy bone matrix material ...

Protein fragments sequenced in 68 million-year-old Tyrannosaurus rex

... ensure that whatever is there gets well preserved because it can be interrogated." The scraps 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 ...

Rice bioengineers pioneer techniques for knee repair

... knee cartilage. His lab is also working on techniques to grow replacement knee menisci, the kidney 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 ...

Increased risk of osteoporosis associated with gene that one in five people have

... normal urinary concentration of a marker that indicates bone resorption and had significantly lower 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, ...