Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Study suggests systemic sclerosis is an independent risk factor for atherosclerosis

11.05.2011
Age and hypertension contribute to coronary calcification -- similar to general population

A new study by researchers in Hong Kong suggests that systemic sclerosis is an independent determinant for moderate to severe coronary calcification or atherosclerosis.

Conventional cardiovascular risk factors such as age and hypertension predispose patients with systemic sclerosis to plaque build-up in the heart arteries similar to the general population. Details of this study are now available in Arthritis & Rheumatism, a journal published by Wiley-Blackwell on behalf of the American College of Rheumatology (ACR).

Systemic sclerosis, also known as scleroderma, is a connective tissue disease which is characterized by sclerodermatous (hardening of tissue due to increased collagen deposits) skin changes, Raynaud's phenomenon, and internal organ fibrosis. The ACR estimates that systemic sclerosis affects 49,000 Americans and a prior U.S. study approximated the prevalence to be 25 per 100,000 individuals. While medical evidence suggests that coronary artery disease (CAD) is increasing in patients with systemic sclerosis, the prevalence of coronary calcification (a measure of coronary artery atherosclerosis) and its risk factors remain unknown.

In the current study a research team, led by Dr. Mo Yin Mok of the Queen Mary Hospital and the University of Hong Kong, recruited 53 patients with systemic sclerosis (50 female, 3 male) and 106 healthy controls to examine coronary artery calcium scores (CACS) and cardiovascular risk factors. Disease activity score, antiphospholipid antibodies, C-reactive protein, and erythrocyte sedimentation rate were also measured for scleroderma patients.

Researchers found that 57% of patients with systemic sclerosis had moderate to severe coronary calcification (CACS greater than 101) compared to only 29% of controls. Scleroderma patients also had significantly lower LDL-cholesterol, HDL-cholesterol, and diastolic blood pressure compared to healthy controls. In addition, compared to the control group, roughly one-third of patients had a low body mass index (BMI) and would be considered underweight according to recommended BMI cutoffs for Asian populations.

Regression analysis also showed that systemic sclerosis was an independent risk factor for coronary artery calcification (odds ratio of 10.89), and disease duration was associated with more severe atherosclerosis. The results of this study concur with previous reports of increased atherosclerosis as determined by angiography in patients with systemic sclerosis. "Our findings show that systemic sclerosis patients have an 11-fold increased risk for developing moderate to severe coronary calcification after adjustment for normal cardiovascular risk factors," concluded Dr. Mok. "CAD is a major global health concern, and further studies should explore modifiable disease-specific risk factors in scleroderma patients that could inhibit coronary calcification in this population."

This study is published in Arthritis & Rheumatism. Media wishing to receive a PDF of the articles may contact healthnews@wiley.com.

Full citation:

"Systemic Sclerosis is an Independent Risk Factor of Increased Coronary Artery Calcium Deposition." Mo Yin Mok, Chak Sing Lau, Sonny Sau Hin Chiu, Annette Wai Kwan Tso, Yi Lo, Lawrence Siu Chun Law, Ka Fung Mak, Woon Sing Wong, Peh Lan Khong, Karen Siu Ling Lam. Arthritis & Rheumatism; Published Online: April 28, 2011 (DOI: 10.1002/art.30283). http://onlinelibrary.wiley.com/doi/10.1002/art.30283/abstract.

About the Journal

Arthritis & Rheumatism is an official journal of the American College of Rheumatology (ACR) and the Association of Rheumatology Health Professionals (ARHP), a division of the College, and covers all aspects of inflammatory disease. The American College of Rheumatology (www.rheumatology.org) is the professional organization who share a dedication to healing, preventing disability, and curing the more than 100 types of arthritis and related disabling and sometimes fatal disorders of the joints, muscles, and bones. Members include practicing physicians, research scientists, nurses, physical and occupational therapists, psychologists, and social workers. For details, please visit http://onlinelibrary.wiley.com/journal/ 10.1002/(ISSN)1529-0131.

About Wiley-Blackwell

Wiley-Blackwell is the international scientific, technical, medical, and scholarly publishing business of John Wiley & Sons, with strengths in every major academic and professional field and partnerships with many of the world's leading societies. Wiley-Blackwell publishes nearly 1,500 peer-reviewed journals and 1,500+ new books annually in print and online, as well as databases, major reference works and laboratory protocols. For more information, please visit www.wileyblackwell.com or our new online platform, Wiley Online Library (wileyonlinelibrary.com), one of the world's most extensive multidisciplinary collections of online resources, covering life, health, social and physical sciences, and humanities.

Dawn Peters | EurekAlert!
Further information:
http://www.wiley.com

More articles from Studies and Analyses:

nachricht A sudden drop in outdoor temperature increases the risk of respiratory infections
11.01.2017 | University of Gothenburg

nachricht Urbanization to convert 300,000 km2 of prime croplands
27.12.2016 | Mercator Research Institute on Global Commons and Climate Change (MCC) gGmbH

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

Im Focus: How to inflate a hardened concrete shell with a weight of 80 t

At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).

Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...

Im Focus: Bacterial Pac Man molecule snaps at sugar

Many pathogens use certain sugar compounds from their host to help conceal themselves against the immune system. Scientists at the University of Bonn have now, in cooperation with researchers at the University of York in the United Kingdom, analyzed the dynamics of a bacterial molecule that is involved in this process. They demonstrate that the protein grabs onto the sugar molecule with a Pac Man-like chewing motion and holds it until it can be used. Their results could help design therapeutics that could make the protein poorer at grabbing and holding and hence compromise the pathogen in the host. The study has now been published in “Biophysical Journal”.

The cells of the mouth, nose and intestinal mucosa produce large quantities of a chemical called sialic acid. Many bacteria possess a special transport system...

Im Focus: Newly proposed reference datasets improve weather satellite data quality

UMD, NOAA collaboration demonstrates suitability of in-orbit datasets for weather satellite calibration

"Traffic and weather, together on the hour!" blasts your local radio station, while your smartphone knows the weather halfway across the world. A network of...

Im Focus: Repairing defects in fiber-reinforced plastics more efficiently

Fiber-reinforced plastics (FRP) are frequently used in the aeronautic and automobile industry. However, the repair of workpieces made of these composite materials is often less profitable than exchanging the part. In order to increase the lifetime of FRP parts and to make them more eco-efficient, the Laser Zentrum Hannover e.V. (LZH) and the Apodius GmbH want to combine a new measuring device for fiber layer orientation with an innovative laser-based repair process.

Defects in FRP pieces may be production or operation-related. Whether or not repair is cost-effective depends on the geometry of the defective area, the tools...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

Nothing will happen without batteries making it happen!

05.01.2017 | Event News

 
Latest News

Multiregional brain on a chip

16.01.2017 | Power and Electrical Engineering

New technology enables 5-D imaging in live animals, humans

16.01.2017 | Information Technology

Researchers develop environmentally friendly soy air filter

16.01.2017 | Power and Electrical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>