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Tag: "foot" at biology news

CT scan reveals ancient long-necked gliding reptile

... gliding reptile Mecistrotrachelos apeoros. Curved foot and ribs are clearly visible The fossilized bones of a previously unknown, 220 million-year-old long-necked, gliding reptile may remain forever embedded in stone, but thanks to an industrial-size CT scanner at Penn State's Center for Quantitative Im...

How to look at dinosaur tracks

...d can be an invaluable source of information about foot morphology, soft tissue distribution, and skin tex... season or wet season. For example, estimating foot length from tracks can be inaccurate without these considerations ?the more erosion that has occurre...

Maggots rid patients of MRSA

... patients of the superbug MRSA - by treating their foot ulcers with maggots. Professor Andrew Boulton and...tle fly larvae to treat 13 diabetic patients whose foot ulcers were contaminated with MRSA and found all but one were cured within a mean period of three we...

Mutation improves memory, may lead to memory-enhancing pill

...st, animals are put into a cage followed by a mild foot shock or are exposed to a tone paired with a foot shock. Their memory for the earlier bad experience is determined based on how much they freeze in re...

Paleontologists discover new mammal from Mesozoic Era

...its relatively shorter and very primitive limb and foot structures. The new mammal also has lumbar ribs, a rare feature among modern mammals. "The discoveries of exquisitely preserved Mesozoic mammals from China have built the evidence such that biologists and paleontologists are able to make sense of ...

New insights into autoimmunity and depression

... test to measure the ability of mice to remember a foot shock delivered 24-hours earlier. Depression-like behavior was strongly observed in the performance of anti-ribosomal P antibody-injected mice on the forced swimming test. The immobility time of these mice was twice as high as that of the contro...

Researchers show that veins stiffen as we age

...that might constrict the veins, such as having one foot immersed in cold water, or while squeezing a handgrip. They also administered a nitroglycerin pill under the tongue of each participant to relax the veins. In each case, they found that the tests had no effect on the response of the veins in either a...

Detailed 3-D image catches a key regulator of neural stem cell differentiation in action

... II. A constantly fluctuating brigade of enzymatic foot soldiers regulates RNA polymerase II's activity by chemically modifying the long cord-like tail that hangs from its globular structure, like a chain on a light fixture. Enzymes called kinases turn the "light" on by adding small phosphate chemical...

A new target for painkillers

...nnocuous stimuli ?for example, feeling pain from a foot rubbing against the inside of a shoe ?and feel an exaggerated response to things that are painful. Common pain medicines like aspirin, ibuprofen and acetaminophen often fail to relieve neuropathic pain. Morphine-like opiods such as oxycodone somet...

Mirrors in the mind: New studies elucidate how the brain reflects onto itself the actions of others

...escribing actions performed by the mouth, hand, or foot influenced cortical neurons that are activated by ...for hand actions (for example, grasping a pen) and foot actions (for example, pressing a piano pedal). Together, the findings suggest that mirror neurons pl...

New dwarf buffalo discovered by chance in the Philippines

...f two teeth, two vertebrae, two upper arm bones, a foot bone, and two hoof bones. The fossil could not be dated with certainty, but the authors estimate that it probably lived during the Pleistocene ("Ice Age"), probably between 10,000 and 100,000 years ago, but it is possible that it is younger. The d...

Search on for treatment of slow-healing wounds

...to the poor blood circulation of many diabetics, a foot sore can develop into an open ulcer that won't heal. For diabetics, such wounds contribute to a foot or lower-leg amputation rate 10 to 15 times higher than non-diabetics. Eighty percent of diabetics w...

Trotting with emus to walk with dinosaurs

...inosaur's tracks became crossed ?that is, the left foot crossing over the right and the right crossing ove...ound as they walk," said Breithaupt of the crossed foot tracks. "Sometimes they stop in mid-stride and look around." Walking theropods appear to have been d...

Just like us, social stress prompts hamsters to overeat, gain weight

... determine whether other stressors, such as a mild foot shock, produce the same effect as the social defeat model; and whether the dominant hamsters gain weight and fat as the result of the intrusion of the submissive hamsters. Another line of inquiry would be to compare mice and rats to hamsters. Human...

K-Staters design and build a low-cost remote sensing tool for environmental studies

...ion down to pixels representing less than a square foot of land area." ...

Genetic snooze button governs timing of spring flowers

...But our study of vernalization may help us get our foot in the door," Amasino says. "It gives us a basis to test whether there are similarities." Knowing the genes that control flowering and how they work provides a much more detailed working knowledge of plants, many that are useful to humans and some...

Neurons grown from embryonic stem cells restore function in paralyzed rats

...ted limbs and to take steps and push away with the foot on that side of the body. "This research represents significant progress," says David Owens, Ph.D., the NINDS program director for the grant that funded the work. "It is a convergence of embryonic stem cell research with other areas of research that...

Brain enzyme treatment relieves memory lapse in Alzheimer's mice

...ning box) and exposed to a tone paired with a mild foot shock. Their ability to learn fear was tested 24 hr later by measuring "freezing" behavior in response to the box or the auditory cue. Contextual versus cued responses represent different forms of learning that depend on different parts of the brain....

Epidemic of unneeded amputations

...s arteries, resulting in rest pain, development of foot ulcers and onset of limb loss. The CLiRpath procedure, using a "cool" excimer laser and catheter system developed by Spectranetics Corp. (NASDAQ: SPNC), vaporizes arterial blockages, restores blood flow, and this surgery promotes wound healing, often...

Trial success for diabetic nerve therapy

...managing the condition and preventing thousands of foot amputations each year. "The vast majority of non-traumatic hand and foot amputations carried out in UK hospitals are caused by diabetes and there are currently no treatments...

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