Tamarind derivative repairs damaged brain cellsJune 8th, 2011 - 2:32 pm ICT by IANS
Sydney, June 8 (IANS) A compound from tamarind tree could help spur the growth of damaged brain and spinal cord nerve cells, which characterises diseases such as Parkinson’s.
Doctoral student Andrew Rodda from Monash University’s materials engineering team investigated xyloglucan, a compound from tamarind seeds and how it affects animals with damaged nerves.
The derivative that Rodda developed from xyloglucan can be injected into an injury site as a liquid, before becoming a gel as it reaches body temperature.
Once in place, it acts as a support structure through which healthy cells can migrate and potentially reattach themselves to the nervous system.
Until now, all damage to the nerve cells of the central nervous system - the brain and spinal cord - had been considered irreparable, according to a Monash statement.
Rodda said the lack of repair or regrowth is due mainly to the toxic environment left behind after nerve death. “Nerve cells are sensitive, and will only grow in the most supportive of environments.”
“After injury, new cells cannot normally penetrate into the empty space left after mass cell death. Cells clump at the edges, forming an impenetrable barrier. This leaves the centre of the wound as a lesion, which contains chemicals that kill growing nerves.”
Rodda said the new compound works by providing a temporary scaffold on which new cells can grow and penetrate the lesion.
Significantly, it was the helper cells, known as astrocytes, which were the first to move into the implanted gel. These cells secrete beneficial chemicals, which may have helped create an environment in which the delicate nerve cells can survive.
- Zebra fish's self-healing could help spinal injury victims - Jun 03, 2012
- Genes that regenerate nerves after injury isolated - Sep 22, 2011
- Cancer drug shows promise in regeneration of spinal cord injuries - Jan 29, 2011
- Stem cells can fix damaged spinal cord tissue - Oct 09, 2010
- Scientists focus on human cells for spinal cord injury repair - Mar 03, 2011
- A faster way to look for drugs that regenerate nerve cells - Oct 12, 2010
- Enzyme treatment could improve recovery from spinal cord injury - Jun 10, 2010
- New treatment to heal spinal injuries - Nov 17, 2011
- New findings could lead to improved treatment of spinal cord injuries - Nov 16, 2010
- How nerve cells regenerate after injury - Sep 28, 2010
- New antibody shows promising results in spinal cord injury - Aug 30, 2012
- Human umbilical cord blood cells boost lab animal's recovery after stroke - Aug 25, 2010
- Chemicals in apple skins, red wine, tumeric could help fight Alzheimer's - Nov 30, 2010
- New treatment could help minimize nerve damage in spinal cord injuries - May 04, 2011
- Blocking protein could halt debilitating brain disease - Apr 30, 2012
Tags: astrocytes, brain cells, cell death, central nervous system, clump, death cells, doctoral student, empty space, engineering team, helper cells, impenetrable barrier, lesion, materials engineering, monash university, nerve cells, regrowth, rodda, scaffold, support structure, toxic environment