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Tag: "injured" at biology news

Experiments provide proof of how traveling in groups protects insects

...as greater competition for food and cannibalism of injured crickets ?overall, there's a clear benefit to band members," Lorch said. "Predation occurs anyway, but any given individual is far better protected than it would be if it were on its own." The research, supported by the USDA, is part of a larger stu...

Experiments provide proof of how traveling in groups protects insects

...as greater competition for food and cannibalism of injured crickets ?overall, there's a clear benefit to band members," Lorch said. "Predation occurs anyway, but any given individual is far better protected than it would be if it were on its own." The research, supported by the USDA, is part of a larger stu...

World-first Living Donor Islet Cell Transplant A Success; Procedure Offers Promise For Diabetics

...dead organ donors. Those islets are often severely injured from cold storage, transport time and the pancreas is severely damaged by toxins which circulate in the blood stream after brain death." "Our expectation is that these islets from near-perfect organs will work better, although it's too early to tell...

New component of the 'brakes' on nerve regeneration found

...cules prevent the growth of the cablelike axons of injured neurons. Myelin is the fatty sheath that encases neurons and acts as an insulator and aid to the transmission of nerve impulses. Researchers knew that CNS neurons had receptors on their surface that accepted the inhibitory molecules--like a key fitt...

Heart repair gets new muscle

... they are grown in a test tube or have migrated to injured hearts in study mice. The authors can't say why skeletal muscle would harbor cardiac stem cells, but for now, the Spoc cells provide a valuable tool for studying heart cell differentiation. And with time, they might prove an important resource for d...

Master gene controls healing of skin in fruit flies and mammals

...bryo. These wound repair genes then regenerate the injured patch of cuticle. In a separate study published in the same issue of Science, a team of researchers led by Stephen Jane at the Royal Melbourne Hospital in Melbourne, Australia report that, although insect cuticle and the outer layer of mammal skin a...

Molecular messengers perform a crucial role in the ability of injured nerve cells to heal themselves

...indings might advance search for new therapies for injured nerve fibers. Long distance messengers star in man...essengers perform a crucial role in the ability of injured nerve cells to heal themselves. A nerve cell has a cell body and a long extension, called an axon, ...

Shark attack worries? Driving to the beach is more deadly

...ry clear. "A greater percentage of beachgoers are injured by jellyfish, stingrays or hardhead and gafftop fishes, which have poisonous spines. They are more likely to cause harm than a shark." He says when shark attacks occur, often they are accidental. "Humans are not a shark's preferred food choice," he...

New HIV drug candidate developed in Sweden

...ry clear. "A greater percentage of beachgoers are injured by jellyfish, stingrays or hardhead and gafftop fishes, which have poisonous spines. They are more likely to cause harm than a shark." He says when shark attacks occur, often they are accidental. "Humans are not a shark's preferred food choice," he...

Agilent Technologies introduces advanced zebrafish, mouse microarrays for stem cell and developmental biology research

...ry clear. "A greater percentage of beachgoers are injured by jellyfish, stingrays or hardhead and gafftop fishes, which have poisonous spines. They are more likely to cause harm than a shark." He says when shark attacks occur, often they are accidental. "Humans are not a shark's preferred food choice," he...

Stem cell treatment improves mobility after spinal cord injury

... same treatment did not work on rats that had been injured for 10 months. The findings point to the potential...t improvements in walking ability in comparison to injured rats who received no treatment. In the rats with 10-month-old injuries, though, motor skills did no...

Scientists discover the body's marijuana-like compounds are crucial for stress-induced pain relief

...enzyme inhibitor. Scientists have long known that injured athletes or even gunshot victims have a period of time in which the body's pain reaction is delayed. This effect is called "stress-induced analgesia." By the mid-1990s, researchers had targeted the sites of action of the brain's naturally occurring m...

Scalpel-free surgery could reduce risk of HIV and hepatitis exposure for health care workers

...us studies have shown that health care workers are injured in about 7 percent of operations. As many as 87 percent of surgeons will receive an injury that breaks the skin -- thus allowing for possible disease transmission - at some point in their career. There are an estimated 40,000 new cases of HIV each ye...

Purdue scientists may have found key to halting spinal cord damage

...roup did was measure the levels of acrolein in the injured spines of 25 guinea pigs for several days followin...ly responsible for the secondary damage that keeps injured spines from healing." Acrolein's involvement with other conditions suggests that it could be the ke...

When in danger humans are similar to a deer in the headlights

...when encountering a threat. The mere picture of an injured or mutilated human induces this reaction. When viewing these unpleasant images, the study's participants froze as their heart rate decelerated and amount of their body sway reduced. The authors found that this abrupt reaction, so critical for the sur...

Why do aneurysms form? New studies suggest leading role for white blood cells

...tin production in the aortas of rats that had been injured with elastase or exposed to control conditions. They also studied mice that had been genetically altered by U-M researchers to lack the gene for L-selectin, and normal comparison mice. In general, the rat aortas exposed to elastase had far higher le...

Muscle repair: Making a good system better, faster; implications for aging, disease

...e report. Macrophage accumulation was impaired in injured muscle of uPA null mice and increased in PAI-1 null mice, compared to WT mice. At days three and five, macrophage accumulation in WT muscle was significantly greater than in uninjured control levels, while macrophage accumulation in PAI-1 null muscle...

Researchers find molecule that inhibits regrowth of spinal nerve cells

...ree things, then we'll have robust regeneration of injured nerves." Other Center for Developmental Biology researchers involved with the study were Dr. Mark Lush, postdoctoral research fellow, and Dr. Q. Richard Lu, assistant professor. Dr. Mario Romero, assistant professor of neurology, also contributed. ...

Stem cells bring fast direct improvement, without differentiation, in acute renal failure

...n the protection and regeneration of destroyed and injured cells. Yet virtually no progress has been made to... which holds that administered stem cells enter an injured organ where they differentiate into those cells that have been destroyed, and thus replace them both...

Study reveals genomics of inflammation from severe injury

...ch of a good thing can be deadly. In some severely injured patients, this normal healing process can develop ...ious, so doctors can't accurately predict how each injured patient will fare. To address these issues, scientists have produced the genomic equivalent of a t...

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