Tag: "limbs" at biology news

DARPA grant supports research toward realizing tissue regeneration

...njuries the partial or complete loss of digits or limbs and deforming facial injuries have profoundly affected the quality of life of the wounded as well as presented a new set of challenges for the medical community faced with treating them. Recognizing the need for novel approaches that can restore, e...

How the octopus forms an elbow

...ral features and control strategies in articulated limbs (for example, jointed vertebrate arms) and flexible octopus arms suggests that these qualities have evolved convergently in octopuses and in vertebrates, and it also suggests that an articulated limb--controlled at the level of joints--is the optimal...

Newly found species fills evolutionary gap between fish and land animals

...roseae, has a skull, a neck, ribs and parts of the limbs that are similar to four-legged animals known as tetrapods, as well as fish-like features such as a primitive jaw, fins and scales. These fossils, found on Ellesmere Island in Arctic Canada, are the most compelling examples yet of an animal that was...

JCI table of contents, March 23, 2006

...ase characterized by muscle weakness mainly in the limbs and face, is caused by the body's production of antibodies against a protein involved in nerve-muscle communication called the nicotinic acetylcholine receptor (AChR), causing reduced "clustering" or grouping of these receptors on muscle cells and im...

How does the brain know what the right hand is doing?

...ulti-decade debate about how the brain knows where limbs are without looking at them. You don't have to wat...as well as indicating why some people who have had limbs amputated still feel as if they can move their 'phantom' limb....

Early land animals could walk and run like mammals, new study finds

...walking, the center of mass vaults up and over the limbs with each step. In running, the center of mass dips with each step, and tendons and joints in the legs act as biological springs. Mammals such as humans, dogs and horses can use both mechanisms to conserve up to 50 percent of their energy needed to...

UF scientists trace origin of shark's electric sense

...ment, and have been used to explore the origins of limbs and brain cells. In the current research, scientists used genetic markers to trace neural crest cells. "Dye labeling would be interesting and further test the idea that electroreceptors contain neural crest cells," Cohn said....

Mutation in brain cells of descendants of Abraham Lincoln suggest he suffered from movement disorder

...ative disorders that cause loss of coordination of limbs and eye movements, slurred speech and swallowing difficulties. "Determining President Lincoln's status relative to SCA5 would be of historical interest and would increase public awareness of ataxia and neurodegenerative disease," Rothstein said. The ...

Amazon trees much older than assumed, raising questions on global climate impact of region

...d an interesting portrait of tree life beneath the limbs of the large trees that dominate tropical forests. They found that most Amazon basin trees are so old because they grow very slowly on nutrient-poor soils in dark shade under the canopy of large trees. The growth rates they measured for Central Amazo...

UCSF study finds nerve regeneration is possible in spinal cord injuries

...S nerve regeneration makes it possible for severed limbs to be surgically reattached to the body and continue to grow and regain function. Regeneration occurs because PNS cell bodies are sensitive to damage to their nerve processes, and they react by sending out a signal that triggers the nerve fibers to...

MicroRNA may have fail-safe role in limb development

... control the fidelity of protein expression in the limbs through microRNA expression. That is a hypothesis that people in the field will have to test, but it is strongly supported by their research."...

Missing fossil link 'Dallasaurus' found

...ing on land, whereas later mosasaurs evolved their limbs into flippers. "This is pretty close to the begin...is the most complete mosasaur retaining all of its limbs found in North America." Mosasaurs, every bit as prolific, fascinating and nearly as big as some d...

Scientists crack code for motor neuron wiring

...ation determines whether motor neurons grow to the limbs or to other targets. Creation of antibodies that react with each of the 21 Hox proteins expressed by spinal cord motor neurons was an important technical advance that enabled the researchers to crack this code. Using these antibodies, Dasen and colle...

U. of Colorado researcher identifies tracks of swimming dinosaur in Wyoming

... of Mexico today. "The swimming dinosaur had four limbs and it walked on its hind legs, which each had three toes," Mickelson said. "The tracks show how it became more buoyant as it waded into deeper water -- the full footprints gradually become half-footprints and then only claw marks." Mickelson expla...

Cyberkinetics, Case to develop system to help restore extremity function

...at enables people with paralysis to move their own limbs simply by thinking," said John Donoghue, Ph.D., Chief Scientific Officer of Cyberkinetics. "This contract is a critical first step toward achieving our goal. We are extremely enthusiastic to be working with Case and the FES Center's world-class team ...

Nocturnal dialysis improves heart disease in patients with end-stage kidney failure

...f EPCs into the heart after a heart attack or into limbs that have constricted blood flow do improve blood flow and aid in healing injured tissue. "Endothelial progenitor cells are like 'handymen' entering the bloodstream to get into areas of blood vessel injury to help repair the damage which occurs on a...

It's a bug's life: MIT team tells moving tale

...slopes in the water's surface without moving their limbs -- and do it at high speed. Welcome to the world of the tiny creatures that live on the surface of ponds, lakes and other standing bodies of water. There, "all the rules change," said David Hu, a graduate student in the Department of Mathematics and ...

Scientists develop 'clever' artificial hand

...he key differences between mechanical, artificial, limbs is that they arn't able to sense pressure or touch in the same way human limbs can. The next stage of Dr Chappell's research is to integrate the latest sensors technology with the...

International stem cell meeting in Kobe, Japan

...some animals are able to regenerate cell, tissues, limbs and organs they have lost to aging, injury or disease. The knowledge gained from such fundamental studies already shows great promise in clinical applications as well, and the CDB will continue to work toward fulfilling its dual mission: to shed ligh...

Studies find possible drug targets for improving vascular health

...rse the effects of the missing gene, which rescued limbs in danger of dying because of ischemia. Ischemia is a severe reduction of blood flow and nutrients, usually because of a blood clot or atherosclerosis. Sessa said the study in PNAS implies that therapeutic approaches to improve blood flow and arteri...

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(Date:11/7/2014)... 6, 2014 Leading Biometric companies aim ... security revolutionizing online transactions.  Companies in focus today are: NXT-ID, ... BABA ), Google Inc. (NASDAQ: GOOG ... (NASDAQ: EBAY ) and MasterCard Inc. (NYSE: MA) ... NXTDW), a biometric authentication company focused on the growing mobile ...
(Date:11/6/2014)... Baltimore, MD, November 6, 2014 - Insilico Medicine, ... in aging and age related diseases announced a ... medicine of cancer, Champions Oncology, Inc (OTC: CSBR). ... genomics for personalized medicine, but Champions Oncology,s TumorGraft ... can validate the chemotherapy regimen experimentally generating vast ...
(Date:11/4/2014)... University of Utah engineers developed the first room-temperature fuel ... electricity without needing to ignite the fuel. These new ... off-grid power and sensors. , A study of the ... Society journal ACS Catalysis . , Fuel cells ... a fuel and an oxygen-rich source such as air. ...
Breaking Biology News(10 mins):Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 2Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 3Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 4Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 5Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 6Insilico Medicine, Inc announces research collaboration with Champions Oncology, Inc 2Jet-fueled electricity at room temperature 2
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