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Latest Regeneration Stories

2011-05-20 07:26:26

(Ivanhoe Newswire) "“ A newly discovered group of stem cells from normal adult human lungs have the ability to regenerate virtually all parts of an injured mouse lung. The findings of Kajstura et al. also show organization of complete respiratory units in vivo within 14 days, including conducting airways and vessels. The authors used cell-surface c-kit receptors, known to mark hematopoietic and cardiac stem cells, to isolate and analyze these cells from adult lungs. They believe that...

2011-05-17 12:58:06

A team led by developmental biologist Professor Christophe Marcelle has nailed the mechanism that causes stem cells in the embryo to differentiate into specialised cells that form the skeletal muscles of animals' bodies. The scientists published their results in the British journal Nature on Monday (May 16). Scientists world wide are racing to pin down the complex molecular processes that cause stem cells in the early embryo to differentiate into specialist cells such as muscle or nerve...

2011-05-16 19:24:39

Worm with abundant ability to regenerate relies on ancient gene to make decisions Most people don't think worms are cool. But the tiny flatworm that Northwestern University scientist Christian Petersen studies can do something very cool indeed: it can regenerate itself from nearly every imaginable injury, including decapitation. When cut in half, it becomes two worms. This amazing ability of the planarian flatworm to regenerate its entire body from a small wedge of tissue has fascinated...

2011-05-16 18:28:19

What does it take to regenerate a limb? Biologists have long thought that organ regeneration in animals like zebrafish and salamanders involved stem cells that can generate any tissue in the body. But new research suggests that multiple cell types are needed to regrow the complete organ, at least in zebrafish. Researchers at Washington University School of Medicine in St. Louis have shown that cells capable of regenerating a zebrafish fin do not revert to stem cells that can form any tissue....

2011-05-12 22:44:27

New research in the FASEB Journal provides scientific basis for the first clinical trial of engineered vascular grafts in children If pending clinical trials prove successful, a new discovery published in The FASEB Journal (http://www.fasebj.org) could represent a major scientific leap toward human tissue regeneration and engineering. In a research report appearing online, Yale scientists provide evidence to support a major paradigm shift in this specialty area from the idea that cells added...

2011-05-12 22:20:21

Ever since animals, such as lizards and starfish, were observed regenerating missing body parts, people have wondered where the new tissues come from. In the case of the planarian flatworm, Whitehead Institute researchers have determined that the source of this animal's extraordinary regenerative powers is a single, pluripotent cell type. Most advanced animals, including mammals, have a system of specialized stem cells. In humans, we have blood stem cells in our bone marrow that make blood...

2011-05-12 22:18:51

A seldom-studied gene known as notum plays a key role in the planarian's regeneration decision-making process, according to Whitehead Institute scientists. Protein from this gene determines whether a head or tail will regrow at appropriate amputation sites. Since the late 1800s, scientists have been fascinated by the planarian's amazing ability to regenerate its entire body from a small wedge of tissue. Whitehead Member Peter Reddien and former postdoctoral fellow Christian Petersen recently...

2011-05-12 22:15:50

A single adult cell from one of the most impressive masters of regeneration in the animal kingdom "“ the planarian "“ is all it takes to build a completely functional new worm, researchers have learned. The study provides the first hard evidence that adult planarians harbor pluripotent stem cells "“ cells capable of producing the diverse range of tissue types necessary to build a complete animal. Distributed throughout the worm body, the newfound cells appear to have the...

2011-05-09 13:20:16

Researchers established a new method to patch a damaged heart with a tissue-engineering platform Researchers at Columbia Engineering have established a new method to patch a damaged heart using a tissue-engineering platform that enables heart tissue to repair itself. This breakthrough, recently published in the Proceedings of the National Academy of Sciences http://www.pnas.org/content/early/2011/04/19/1104619108.long, is an important step forward in combating cardiovascular disease, one of...

2011-05-09 12:37:39

Findings hold potential for solution to baldness, with wider implications for stem cell research In one of the first studies to look at the population behavior of a large pool of stem cells in thousands of hair follicles "“ as opposed to the stem cell of a single hair follicle "“ Keck School of Medicine of USC scientists deciphered how hair stem cells in mice and rabbits can communicate with each other and encourage mutually coordinated regeneration, according to an article...


Word of the Day
holluschickie
  • A 'bachelor seal'; a young male seal which is prevented from mating by its herd's older males (mated bulls defending their territory).
This comes from the Russian word for 'bachelors.'
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