Navigation Links
Molecule found that inhibits recovery from stroke
Date:7/27/2012

FINDINGS:

Researchers at UCLA have identified a novel molecule in the brain that, after stroke, blocks the formation of new connections between neurons. As a result, it limits the brain's recovery. In a mouse model, the researchers showed that blocking this moleculecalled ephrin-A5--induces axonal sprouting, that is, the growth of new connections between the brain's neurons, or cells, and as a result promotes functional recovery.

IMPACT:

If duplicated in humans, the identification of this molecule could pave the way for a more rapid recovery from stroke and may allow a synergy with existing treatments, such as physical therapy.

UCLA AUTHOR:

Dr. S. Thomas Carmichael, professor of neurology, and colleagues

JOURNAL:

The research appears online this week in the journal PNAS.

MORE:

Stroke is the leading cause of adult disability because of the brain's limited capacity for repair. An important process in recovery after stroke may be in the formation of new connections, termed axonal sprouting. The adult brain inhibits axonal sprouting and the formation of these connections. In previous work the researchers found, paradoxically, that the brain sends mixed signals after a strokeactivating molecules that both stimulate and inhibit axonal sprouting. In this present work, the researchers have identified the effect of one molecule that inhibits axonal sprouting and determined the new connections in the brain that are necessary to form for recovery.

The researchers also developed a new tissue bioengineering approach for delivering drugs to the brain after stroke. This approach uses a biopolymer hydrogel, or a gel of naturally occurring brain proteins, to release neural repair molecules directly to the target region for recovery in strokethe tissue adjacent to the center of the stroke.

Last, the paper also shows that the more behavioral activity after stroke, such as the amount an impaired limb is used, the more new connections are directly stimulated to form in the injured brain. This direct link between movement patterns, like those that occur in neurorehabilitation, and the formation of new brain connections, provides a biological mechanism for the effects of some forms of physical therapy after stroke.


'/>"/>
Contact: Mark Wheeler
mwheeler@mednet.ucla.edu
310-794-2265
University of California - Los Angeles Health Sciences
Source:Eurekalert

Related medicine news :

1. Molecule movements that make us think
2. Prions in the brain eliminated by homing molecules
3. Researchers identify a life-and-death molecule on chronic leukemia cells
4. Inhibitors of shuttle molecule show promise in acute leukemia
5. Mayo Clinic: Molecule thought cancer foe actually helps thyroid tumors grow
6. Cleveland Clinic researchers discover molecule that may prevent atherosclerosis
7. More Fake Avastin Found in U.S., FDA Says
8. Kessler Foundation names Dr. John Whyte recipient of Foundations 2nd Annual DeLisa Award
9. History of abandoned urban sites found stored in soil
10. Wilderness Medicine founder offers health tips for summer season
11. Concerns about MRSA for expectant mothers may be unfounded
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... October 13, 2017 , ... The International ... promote standards of excellence for the field of eating disorders, announces the opening ... 25, 2018 in Orlando, Florida at the Omni Resort at ChampionsGate. ...
(Date:10/13/2017)... ... October 13, 2017 , ... Lori R. Somekh, founder of ... ElderCounsel, a national organization of elder law and special needs planning attorneys. “Membership in ... It also provides a forum to network with elder law attorneys nationwide,” said Somekh. ...
(Date:10/13/2017)... ... , ... The Visiting Nurse Association (VNA) of Somerset Hills is proud to ... unique items from across the nation, this holiday-themed event will raise funds and awareness ... VNA. The boutique will be open Saturday, November 4 (10:00 a.m. – 5:00 ...
(Date:10/13/2017)... ... , ... Yisrayl Hawkins, Pastor and Overseer at The House of Yahweh, has ... least understood books in the Holy Scriptures, Revelation. The Book of Revelation paints a ... centuries. Many have tossed it off as mere rubbish, but Yisrayl Hawkins says that ...
(Date:10/13/2017)... (PRWEB) , ... October 13, 2017 , ... “The Journey: ... faced every danger possible to save lost souls in the Philippines. “The Journey: From ... Carole is a dedicated teacher of the Bible. She has taught all ages and ...
Breaking Medicine News(10 mins):
(Date:10/4/2017)... 4, 2017  According to the Centers for Disease Control and Prevention ... . PhysicianOne Urgent Care is helping communities across Massachusetts ... , by offering no-cost* flu shots through the end of the month. ... health insurance regulations. ... to get a flu shot is by the end of October, according ...
(Date:10/2/2017)... 2, 2017 Halo Labs announces the European launch of ... the HORIZON at MIBio 2017 in Cambridge, U.K ... particulate matter in biopharmaceutical samples with unprecedented speed and sensitivity while ... technique Backgrounded Membrane Imaging. ... HORIZON subvisible particle analysis system ...
(Date:9/27/2017)... NEW YORK , Sept. 27, 2017  DarioHealth Corp. ... big data solutions, today announced that its MyDario product is expected to ... TV listings for when The Dr. Oz Show airs in your area: ... The nine-time Emmy award-winning, ... ...
Breaking Medicine Technology: