Featured Research

from universities, journals, and other organizations

Gene knockout shows potential for diabetes-related heart failure

Date:
December 10, 2010
Source:
BioMed Central
Summary:
Silencing the TLR4 gene can stop the process which may lead to cardiovascular disease in diabetic patients. Researchers carried out a series of in vitro tests which demonstrated that TLR4 plays a critical role in hyperglycaemic cardiac apoptosis, and that silencing the gene using specific small interfering RNA can prevent it.

Silencing the TLR4 gene can stop the process which may lead to cardiovascular disease in diabetic patients. Researchers writing in BioMed Central's open access Journal of Translational Medicine carried out a series of in vitro tests which demonstrated that TLR4 plays a critical role in hyperglycaemic cardiac apoptosis, and that silencing the gene using specific small interfering RNA (siRNA) can prevent it.

Wei-Ping Min, from the University of Western Ontario, Canada, worked with a team of researchers to perform the tests in cells taken from diabetic mice. He said, "We found that TLR4 was up-regulated in the myocardia of diabetic mice. Treatment with TLR4 siRNA attenuated the apoptosis seen in these cells, thus highlighting the potential clinical use of siRNA-based therapy."

Min and his colleagues induced hyperglycemia in adult mice by injecting them with streptozotocin, a toxin that poisons insulin-producing beta cells. They found that after 7 days of hyperglycemia, the level of TLR4 mRNA in myocardial tissue was significantly elevated, and signs of apoptosis were evident. Silencing TLR4 resulted in suppression of apoptotic cascades. According to Min, "This is the first demonstration of the prevention of cardiac apoptosis in diabetic mice through silencing of the TLR4 gene."


Story Source:

The above story is based on materials provided by BioMed Central. Note: Materials may be edited for content and length.


Journal Reference:

  1. Yuwei Zhang, Tianqing Peng, Huaqing Zhu, Xiufen Zheng, Xusheng Zhang, Nan Jiang, Xiaoshu Cheng, Xiaoyan Lai, Aminah Shunnar, Manpreet Singh, Neil Riordan, Vladimir Bogin, Nanwei Tong and Wei-Ping Min. Prevention of hyperglycemia-induced myocardial apoptosis by gene silencing of Toll-like receptor-4. Journal of Translational Medicine, (in press)

Cite This Page:

BioMed Central. "Gene knockout shows potential for diabetes-related heart failure." ScienceDaily. ScienceDaily, 10 December 2010. <www.sciencedaily.com/releases/2010/12/101209185556.htm>.
BioMed Central. (2010, December 10). Gene knockout shows potential for diabetes-related heart failure. ScienceDaily. Retrieved April 23, 2014 from www.sciencedaily.com/releases/2010/12/101209185556.htm
BioMed Central. "Gene knockout shows potential for diabetes-related heart failure." ScienceDaily. www.sciencedaily.com/releases/2010/12/101209185556.htm (accessed April 23, 2014).

Share This



More Health & Medicine News

Wednesday, April 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Big Pharma Braces for M&A Wave

Big Pharma Braces for M&A Wave

Reuters - Business Video Online (Apr. 22, 2014) Big pharma on the move as Novartis boss, Joe Jimenez, tells Reuters about plans to transform his company via an asset exchange with GSK, and Astra Zeneca shares surge on speculation that Pfizer is looking for a takeover. Joanna Partridge reports. Video provided by Reuters
Powered by NewsLook.com
Study Says Most Crime Not Linked To Mental Illness

Study Says Most Crime Not Linked To Mental Illness

Newsy (Apr. 22, 2014) A new study finds most crimes committed by people with mental illness are not caused by symptoms of their illness or disorder. Video provided by Newsy
Powered by NewsLook.com
Hagel Gets Preview of New High-Tech Projects

Hagel Gets Preview of New High-Tech Projects

AP (Apr. 22, 2014) Defense Secretary Chuck Hagel is given hands-on demonstrations Tuesday of some of the newest research from DARPA _ the military's Defense Advanced Research Projects Agency program. (April 22) Video provided by AP
Powered by NewsLook.com
How Smaller Plates And Cutlery Could Make You Feel Fuller

How Smaller Plates And Cutlery Could Make You Feel Fuller

Newsy (Apr. 22, 2014) NBC's "Today" conducted an experiment to see if changing the size of plates and utensils affects the amount individuals eat. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

    Health News

    Environment News

    Technology News



    Save/Print:
    Share:

    Free Subscriptions


    Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

    Get Social & Mobile


    Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

    Have Feedback?


    Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
    Mobile: iPhone Android Web
    Follow: Facebook Twitter Google+
    Subscribe: RSS Feeds Email Newsletters
    Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins