Featured Research

from universities, journals, and other organizations

How Glucocorticoid Drugs Protect The Heart

Date:
May 20, 2009
Source:
Journal of Clinical Investigation
Summary:
Synthetic glucocorticoids are used clinically in many situations, such as to treat asthma, and have been shown in animals and humans to help protect the heart from the damaging effects of heart attack. This has previously been attributed to their anti-inflammatory effects, however new research now indicates there is another mechanism by which glucocorticoids protect rodent hearts from the damaging effects of heart attack: they induce heart muscle cells to produce the protective molecule PGD2.

Glucocorticoids are steroid hormones that have numerous functions; for example, they regulate the response to stress and suppress inflammation. Synthetic glucocorticoids are used clinically in many situations, most famously to treat asthma, allergies, and autoimmunity.

They have also been shown in animals and humans to help protect the heart from the damaging effects of heart attack, and this has been attributed to their anti-inflammatory effects. However, Motoaki Sano and colleagues, at Keio University School of Medicine, Japan, have now determined another mechanism by which glucocorticoids protect rodent hearts from the damaging effects of heart attack.

Specifically, glucocorticoids, acting via the glucocorticoid receptor (GR), induced mouse and rat heart muscle cells to produce PGD2, and this was responsible for the ability of glucocorticoids to reduce damage to mouse hearts in both an ex vivo and an in vivo model of heart attack.

The authors therefore suggest that GR-selective glucocorticoids might be more beneficial to humans following heart attack than glucocorticoids that activate both GR and the MR protein, activation of which occurs in response to stress and might have unwanted consequences.


Story Source:

The above story is based on materials provided by Journal of Clinical Investigation. Note: Materials may be edited for content and length.


Journal Reference:

  1. Glucocorticoid protects rodent hearts from ischemia/reperfusion injury by activating lipocalin-type prostaglandin D synthase%u2013derived PGD2 biosynthesis. Journal of Clinical Investigation, May 17, 2009

Cite This Page:

Journal of Clinical Investigation. "How Glucocorticoid Drugs Protect The Heart." ScienceDaily. ScienceDaily, 20 May 2009. <www.sciencedaily.com/releases/2009/05/090518172446.htm>.
Journal of Clinical Investigation. (2009, May 20). How Glucocorticoid Drugs Protect The Heart. ScienceDaily. Retrieved October 1, 2014 from www.sciencedaily.com/releases/2009/05/090518172446.htm
Journal of Clinical Investigation. "How Glucocorticoid Drugs Protect The Heart." ScienceDaily. www.sciencedaily.com/releases/2009/05/090518172446.htm (accessed October 1, 2014).

Share This



More Health & Medicine News

Wednesday, October 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Cases Keep Coming for Monrovia's Island Hospital

Ebola Cases Keep Coming for Monrovia's Island Hospital

AFP (Oct. 1, 2014) A look inside Monrovia's Island Hospital, a key treatment centre in the fight against Ebola in Liberia's capital city. Duration: 00:34 Video provided by AFP
Powered by NewsLook.com
Ebola Puts Stress on Liberian Health Workers

Ebola Puts Stress on Liberian Health Workers

AP (Oct. 1, 2014) The Ebola outbreak is putting stress on first responders in Liberia. Ambulance drivers say they are struggling with chronic shortages of safety equipment and patients who don't want to go to the hospital. (Oct. 1) Video provided by AP
Powered by NewsLook.com
Doctors Reassure Public Ebola Patient Won't Cause Outbreak

Doctors Reassure Public Ebola Patient Won't Cause Outbreak

Newsy (Sep. 30, 2014) After the announcement that the first U.S. patient had been diagnosed with Ebola, doctors were quick to say a U.S. outbreak is highly unlikely. Video provided by Newsy
Powered by NewsLook.com
TX Hospital Confirms Patient Admitted With Ebola

TX Hospital Confirms Patient Admitted With Ebola

AP (Sep. 30, 2014) Medical officials from Texas Health Presbyterian Hospital confirm they are treating a patient with the Ebola virus, the first case found in the US. (Sept. 30 Video provided by AP
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:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

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