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Tag: "swell" at biology news

Mice with a migraine show signs of brain damage

...own as neurons. The team observed that nerve cells swell and begin to disintegrate, with neurons shedding important connections known as dendritic spines ?the tiny extensions of an individual neuron’s body that usually number in the thousands within a synapse. Mice in the grasp of a migraine lost up to thr...

Swell gel could bring relief to back pain sufferers

...an Sciences have developed tiny gel particles that swell and stiffen when injected into a damaged area. Investigations have revealed that degenerated animal intervertebral discs containing the injected 'microgels' regain their mechanical properties. This development opens up the possibility of human...

An artificial cornea is in sight, thanks to biomimetic hydrogels

... corneas. Called Duoptix TM , the material can swell to a water content of 80 percent--about the same as biological tissues. It's made of two interwoven networks of hydrogels. One network, made of polyethylene glycol molecules, resists the accumulation of surface proteins and inflammation. The other ne...

Microcapsules like it hot and salty

...erature is only slightly raised the hollow spheres swell up or shrink and at the same time the wall becomes...arges in the polymer shell which makes the capsule swell on the other. "Depending on the strength of the two competitors, the exact size of the capsule can b...

ABCB6 is key to production of heme in hemoglobin

... of porphyrins that causes the skin to blister and swell in sunlight; and acute porphoryia, a nerve problem that triggers pain in the chest, abdomen, limbs or back, as well as paralysis, cramping and personality changes or mental disorders. "Also, people with porphyria can suffer sudden, acute attacks if t...

Secrets of the sea yield stronger artificial bone

...r Health Statistics. These numbers are expected to swell in the future as baby boomers age. Because of the pressing need for longer-lasting artificial bone, researchers like Tomsia have developed materials that take their cue from nature. In this case, Tomsia and colleagues turned to the ocean. When seawa...

Researchers Discover Gene That Determines Asthma Susceptibility By Regulating Inflammation

...oxygen species (ROS), causing the airway lining to swell and restrict. ROS is thought to cause lung tissue damage as well. ROS levels are normally offset by antioxidants in non-asthmatics. Recently, researchers have been hunting for novel genes that regulate inflammation with the hope of developing them as...

Millennium Ecosystem Assessment: Many of 2 billion dryland dwellers at risk as land degrades

Growing desertification worldwide threatens to swell by millions the number of poor forced to seek new homes and livelihoods. And a rising number of large, intense dust storms plaguing many areas menace the health of people even continents away, international experts warn in a new report. Thick storms...

Pair of cancer genes found to drive both cell migration and division

...cells move to one part of the body and cause it to swell painfully, he says. The researchers also hope their findings will provide a bridge between two scientific fields that have traditionally kept to themselves. "Scientists studying cell migration have focused on the front of the cell and what drives i...

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