Quantcast

Latest Regeneration Stories

Understanding Organ Regeneration Using Planarian Flatworms
2012-10-25 12:26:38

In a new study published in the October 16 issue of Developmental Cell, corresponding author Professor of Cell and Developmental Biology and Howard Hughes Medical Institute Investigator Phillip Newmark and colleagues report the identification of genes that control growth and regeneration of the intestine in the freshwater planarian Schmidtea mediterranea. How animals repair their internal organs after injury is not well understood. Planarian flatworms are useful models for studying this...

2012-10-15 10:25:45

While it is well known that starfish, zebrafish and salamanders can re-grow damaged limbs, scientists understand very little about the regenerative capabilities of mammals. Now, researchers at Wake Forest Baptist Medical Center's Institute for Regenerative Medicine report on the regenerative process that enables rats to re-grow their bladders within eight weeks. In PLOS ONE, a peer-reviewed, online publication, the scientists characterize this unique model of bladder regeneration with the...

Regenerated Lizard Tails Not A Perfect Match To Original Tail
2012-10-10 08:47:00

Lawrence LeBlond for redOrbit.com - Your Universe Online Some lizards have the innate ability to re-grow their tails when their original one gets severed. However, this natural regenerative ability does not occur in a perfect way. In other words, the new tail, based on studies by a team of scientists from two Arizona schools, is quite different from the original appendage it replaces. Scientists from Arizona State University and University of Arizona examined the anatomical and...

Immune System Can Accelerate Regeneration Of Peripheral Nerves
2012-10-02 13:19:21

Finding the 'master knob to turn on nerve repair' Modulating immune response to injury could accelerate the regeneration of severed peripheral nerves, a new study in an animal model has found. By altering activity of the macrophage cells that respond to injuries, researchers dramatically increased the rate at which nerve processes regrew. Influencing the macrophages immediately after injury may affect the whole cascade of biochemical events that occurs after nerve damage, potentially...

Scar-Free Healing Mice Offers Clues To Human Skin Repair
2012-09-27 12:26:26

April Flowers for redOrbit.com - Your Universe Online African spiny mice (genus Acomys) have brittle skin, which tears off in continuous sheets, like human skin, in order to escape predators. Some of them lose as much as 60% of the skin from their backs, which then heals rapidly, regrowing hair instead of scarring. Scientists want to figure out how this healing takes place and if it could apply to treatments for people. The study, published in Nature, says the unusual healing of these...

Tissue Regeneration Study Learns From Salamanders
2012-09-26 11:53:50

Connie K. Ho for redOrbit.com — Your Universe Online Researchers from the Salk Institute recently studied the regeneration of new limbs in salamanders and believe that the findings could be useful in studies on regenerative medicine for humans. The scientists published two different studies on the Mexican axolotl, a species of aquatic salamander that has lizard-like characteristics. They found that the salamanders needed more than just the activation of genes...

2012-08-31 13:41:11

Stowers scientists show how pluripotent stem cells mobilize in wounded planarian worms, to better understand stem cell behavior in regeneration and disease The skin, the blood, and the lining of the gut–adult stem cells replenish them daily. But stem cells really show off their healing powers in planarians, humble flatworms fabled for their ability to rebuild any missing body part. Just how adult stem cells build the right tissues at the right times and places has remained largely...

2012-08-06 10:56:42

Transplanted heart cells, grown from stem cells, electrically couple and beat in sync with heart's own muscle Researchers have made a major advance in efforts to regenerate damaged hearts. Grafts of human cardiac muscle cells, grown from embryonic stem cells, coupled electrically and contracted synchronously with host muscle following transplantation in guinea pig hearts. The grafts also reduced the incidence of arrhythmias (irregular heart rhythms) in a guinea pig model of...

2012-08-03 01:19:53

Planarian flatworms have come under intense study for their renowned ability to regenerate any missing body part, even as adults. But now they may take on a starring role as a model system for studying eye development and eye diseases in vertebrates, including humans. This expansion of the planarian job description comes courtesy of Whitehead Institute researchers, who this week are publishing in Cell Reports an exhaustive catalog of genes active in the planarian eye. "It's exciting to...


Word of the Day
abrosia
  • Wasting away as a result of abstinence from food.
The word 'abrosia' comes from a Greek roots meaning 'not' and 'eating'.