Navigation Links
Preventing a broken heart: Research aims to reduce scarring from heart attacks
Date:12/14/2008

MADISON A heart damaged by heart attack is usually broken, at least partially, for good. The injury causes excessive scar tissue to form, and this plays a role in permanently keeping heart muscle from working at full capacity.

Now researchers have identified a key molecule involved in controlling excessive scar tissue formation in mice following a heart attack. When they stopped the scarring from occurring, the scientists found that the animals' heart function greatly improved following the injury.

The study, by scientists at the University of Wisconsin-Madison and Cornell University, appears in Nature Cell Biology online Dec. 14, 2008.

The findings offer heartening news for the millions who have heart attacks each year and suffer from the resulting poor heart function. The study raises the hope that the outlook for people with this major disability might be markedly improved.

The scientists studied a protein, sFRP2, which they unexpectedly found to be involved in the formation of collagen, the main component of scar tissue.

"With many injuries and diseases, large amounts of collagen are formed and deposited in tissues, leading to scarring and a condition called fibrosis," explains co-author Daniel S. Greenspan, professor of pathology and laboratory medicine at the UW School of Medicine and Public Health. "Fibrosis can seriously affect the functioning of heart, lung, liver and other tissues."

Greenspan, an expert on collagen, joined with Thomas Sato of Weill Cornell Medical College to study mice that don't produce sFRP2 to understand how the protein works. When the scientists restricted blood flow to the animals' hearts, mimicking a heart attack, they found that scarring was significantly reduced in these sFRP2-free animals.

"Importantly, we found that when we reduced the level of fibrosis, heart function significantly improved in the mice," says Greenspan, also a professor of pharmacology at UW-Madison.

Identifying agents that specifically target sFRP2 and halt its activity will be a promising approach to controlling heart attack-induced scarring and impaired heart function, says Greenspan, and his lab has begun the search. The UW scientists also hope to study how sFRP2 and other proteins that enhance collagen formation may interact.

The protein may also be important in treating other diseases resulting in severe fibrosis, adds Greenspan, including liver cirrhosis and interstitial lung disease.


'/>"/>

Contact: Dian Land
dj.land@hosp.wisc.edu
608-261-1034
University of Wisconsin-Madison
Source:Eurekalert

Related biology news :

1. Kazak apple research key to preventing blue mold
2. MIT: Preventing forest fires with tree power
3. Scientists demonstrate feasibility of preventing malaria parasite from becoming sexually mature
4. Streams remove significant amounts of nitrogen, preventing downstream dead zones
5. Environmental epigenetics has potential for preventing and treating disease
6. Preventing tuberculosis reactivation
7. New journal shows half-broken gene is enough to cause cancer
8. MIT: Mending broken hearts with tissue engineering
9. Mayo Clinic research on tamoxifen leads to recommendation for CYP2D6 gene test
10. Ireland Cancer Center researcher finds most triple-negative breast cancers express muc-1 target
11. Pitt, NETL researchers report molecular chain reaction thought to be impossible
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/6/2017)... , May 5, 2017 RAM ... announced a new breakthrough in biometric authentication based ... quantum mechanical properties to perform biometric authentication. These new ... semiconductor material created by Ram Group and its ... entertainment, transportation, supply chains and security. Ram Group ...
(Date:4/17/2017)... 17, 2017 NXT-ID, Inc. (NASDAQ: NXTD ... filing of its 2016 Annual Report on Form 10-K on Thursday ... ... available in the Investor Relations section of the Company,s website at ... website at http://www.sec.gov . 2016 Year Highlights: ...
(Date:4/11/2017)... , Apr. 11, 2017 Research and ... Market 2017-2021" report to their offering. ... The global eye tracking market to grow at a ... report, Global Eye Tracking Market 2017-2021, has been prepared based on ... covers the market landscape and its growth prospects over the coming ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... Oct. 10, 2017 SomaGenics announced the receipt ... to develop RealSeq®-SC (Single Cell), expected to be the ... RNAs (including microRNAs) from single cells using NGS methods. ... need to accelerate development of approaches to analyze the ... "New techniques for measuring levels of mRNAs in ...
(Date:10/10/2017)... ... October 10, 2017 , ... The Pittcon Program ... honoring scientists who have made outstanding contributions to analytical chemistry and ... 2018, the world’s leading conference and exposition for laboratory science, which will be ...
(Date:10/9/2017)... ... 09, 2017 , ... The award-winning American Farmer television series will feature 3 ... airs Tuesdays at 8:30aET on RFD-TV. , With global population estimates nearing ten ... to continue to feed a growing nation. At the same time, many of our ...
(Date:10/9/2017)... Arizona (PRWEB) , ... October 09, 2017 , ... ... Kindred, a four-tiered line of medical marijuana products targeting the needs of consumers ... and packaging of Kindred takes place in Phoenix, Arizona. , As operators of ...
Breaking Biology Technology: