Featured Research

from universities, journals, and other organizations

Mechanistic discovery links psoriasis to increased risk of CVD

Date:
May 10, 2012
Source:
Case Western Reserve University
Summary:
Researchers have discovered preclinical evidence demonstrating that the inflammatory skin disease leads to cardiovascular disease. Further, the research demonstrated that aggressive reversal of psoriasis reduces the cardiovascular risk as well.

The link between psoriasis and cardiovascular events has been observed for years, however the mechanics were unknown. For the first time, Case Western Reserve University School of Medicine researchers have discovered preclinical evidence demonstrating that the inflammatory skin disease leads to cardiovascular disease. Further, the research demonstrated that aggressive reversal of psoriasis reduces the cardiovascular risk as well. Psoriasis is a chronic disease of the immune system that appears as raised, inflamed, scaly red patches of skin and is often associated with intense itch. In the United States, it affects between two and a half to six million patients.

Related Articles


Published in the Journal of Investigative Dermatology, the study used a new, innovative mouse model to demonstrate a causal connection between the skin disease and cardiovascular disease. Dr. Ward and her research team demonstrated that mice engineered to overexpress a protein called Tie-2 in the skin, develop a skin condition similar to human psoriasis. Using this model, they showed that persistent, chronic inflammation confined to the skin can result in inflammation in large arteries, such as the aorta.

"This discovery is paradigm shifting. There has been a link between the two diseases but to date we had not been able to show cause. Epidemiologic evidence from thousands of patients was convincing that psoriasis patients had a much greater chance of developing cardiovascular disease and dying from it," says Nicole Ward, PhD, senior author of the study, assistant professor of dermatology and neurosciences at Case Western Reserve School of Medicine, and scientist with the Murdough Family Center for Psoriasis at University Hospitals Case Medical Center.

There is a known increased risk of heart, cerebrovascular, and peripheral artery diseases, as well as risk of death, in individuals suffering from a variety of chronic inflammatory diseases, such as rheumatoid arthritis (RA), colitis, gum disease, lupus, and psoriasis. Many researchers showed, statistically, that having psoriasis leads to an increased risk for cardiovascular disease and heart complications, however it was unclear why this occurs and it was challenging to separate out the significance of other lifestyle factors and their contributions to this risk, she adds.

Based on published clinical reports demonstrating psoriasis patients had increased risk of developing and dying of heart attack and stroke, Dr. Ward and her team set-out to investigate whether their mouse model of psoriasis would also show cardiac complications, mimicking these seen in human disease. They teamed up with experts in the role of inflammation in vessel injury -- Yunmei Wang, PhD, assistant professor of medicine at the School of Medicine and Daniel I. Simon, MD the Herman K. Hellerstein Professor of Cardiovascular Research at the School of Medicine, and chief, Cardiovascular Medicine at University Hospitals Case Medical Center.

"We believed that chronic inflammation over a large area of the body may be the reason for an increased risk of cardiovascular complications in skin disease patients; however, until now we had no way to model and definitively prove this," says Dr. Wang.

Dr. Ward and her team measured blood clot formation in the psoriasis mouse model and normal mice, revealing that time was greatly shortened in the diseased mice. This shortened time to vessel blockage is akin to a greater risk for blood vessel blockage in humans that leads to stroke or heart attack. Further examination revealed that mice with the skin disease also exhibited inflammation of the vessel wall similar to that observed with atherosclerotic lesions or plaques.

Importantly, and highly meaningful for patients with psoriasis, Dr. Ward's work was able to demonstrate that upon reversal of the skin disease, the cardiovascular inflammation and blood clot formation were also decreased.

"Our observations of improved vessel wall inflammation and decreased clot formation following skin-specific repression of disease provide further evidence that skin inflammation promotes vascular inflammation and thrombosis and strongly suggests that aggressive treatment of skin disease may block pathways that produce cardiovascular disease in psoriasis patients," says Dr. Ward.

,Dr. Ward will present these findings at the 2012 Society for Investigative Dermatology Annual Meeting this week in Raleigh, NC.

This research was funded by the National Institutes of Health, National Psoriasis Foundation, and the Murdough Family Center for Psoriasis.



Story Source:

The above story is based on materials provided by Case Western Reserve University. Note: Materials may be edited for content and length.


Journal Reference:

  1. Yunmei Wang, Huiyun Gao, Candace M Loyd, Wen Fu, Doina Diaconu, Shijian Liu, Kevin D Cooper, Thomas S McCormick, Daniel I Simon, Nicole L Ward. Chronic Skin-Specific Inflammation Promotes Vascular Inflammation and Thrombosis. Journal of Investigative Dermatology, 2012; DOI: 10.1038/jid.2012.112

Cite This Page:

Case Western Reserve University. "Mechanistic discovery links psoriasis to increased risk of CVD." ScienceDaily. ScienceDaily, 10 May 2012. <www.sciencedaily.com/releases/2012/05/120510113335.htm>.
Case Western Reserve University. (2012, May 10). Mechanistic discovery links psoriasis to increased risk of CVD. ScienceDaily. Retrieved December 18, 2014 from www.sciencedaily.com/releases/2012/05/120510113335.htm
Case Western Reserve University. "Mechanistic discovery links psoriasis to increased risk of CVD." ScienceDaily. www.sciencedaily.com/releases/2012/05/120510113335.htm (accessed December 18, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Thursday, December 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

UN: Up to One Million Facing Hunger in Ebola-Hit Countries

UN: Up to One Million Facing Hunger in Ebola-Hit Countries

AFP (Dec. 17, 2014) Border closures, quarantines and crop losses in West African nations battling the Ebola virus could lead to as many as one million people going hungry, UN food agencies said on Wednesday. Duration: 00:52 Video provided by AFP
Powered by NewsLook.com
When You Lose Weight, This Is Where The Fat Goes

When You Lose Weight, This Is Where The Fat Goes

Newsy (Dec. 17, 2014) Can fat disappear into thin air? New research finds that during weight loss, over 80 percent of a person's fat molecules escape through the lungs. Video provided by Newsy
Powered by NewsLook.com
Why Your Boss Should Let You Sleep In

Why Your Boss Should Let You Sleep In

Newsy (Dec. 17, 2014) According to research out of the University of Pennsylvania, waking up for work is the biggest factor that causes Americans to lose sleep. Video provided by Newsy
Powered by NewsLook.com
Flu Outbreak Closing Schools in Ohio

Flu Outbreak Closing Schools in Ohio

AP (Dec. 17, 2014) A wave of flu illnesses has forced some Ohio schools to shut down over the past week. State officials confirmed one pediatric flu-related death, a 15-year-old girl in southern Ohio. (Dec. 17) 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