Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Researchers investigate link between autoimmune diseases and wounds that don't heal

16.12.2011
Millions of Americans suffer from wounds that don't heal, and while most are typically associated with diabetes, new research has identified another possible underlying cause – autoimmune diseases.

The finding, published online Dec. 14th in the International Wound Journal, represents an unappreciated link that could lead to important new insights in wound healing, say researchers at Georgetown University Medical Center. (Data from this study were presented at the 2011 annual meeting of the American College of Rheumatology.)

The study was sparked by the keen observation of Georgetown rheumatologist Victoria Shanmugam, M.D., who began noticing something rather unusual in her patients with autoimmune diseases — any open wound they had was very slow to heal. Their recovery was even more protracted than in patients with wounds who have diabetes, a disease that is notoriously damaging to blood vessels and to normal skin repair.

So Shanmugam and her colleagues conducted a chart review of people who sought care at a high-volume wound clinic at Georgetown University Hospital to determine the prevalence of autoimmune diseases. The study included patients with open wounds — usually leg ulcers who were treated during a three-month period in 2009. Of the 340 patients, 49 percent had diabetes, which she says is a typical rate.

"But what was surprising is that 23 percent had underlying autoimmune diseases, and the connection between these relatively rare disorders and wounds that don't heal is under-recognized," she says.

Of the 78 patients in the cohort who had autoimmune disease, most had rheumatoid arthritis, lupus or livedoid vasculopathy, a type of vascular disease.

Shanmugam says her findings also show that autoimmune disease-associated wounds were significantly larger at the patient's first visit. These non-healing wounds can be "incredibly emotionally draining and financially costly," Shanmugam says, because they require doctor visits over many months as well as an ever-present risk of serious infections. Sometimes, infections can lead to surgery and the amputation of limbs. More often, they require skin grafts or use of skin substitutes, which may still not solve the problem.

In fact, Shanmugam's study found that skin grafts were more likely to fail in patients with autoimmune disease-associated wounds.

Shanmugam hopes the link she has made between autoimmune diseases and wound healing will make its way into the consciousness of the general practitioner. While it is much too invasive and costly to recommend that all patients with wounds be tested for autoimmune diseases, she says, "If a doctor has a patient with a leg ulcer that won't heal after three or four months and they have done all the appropriate treatments, I hope they will look for the presence of an autoimmune disorder."

Shanmugam's research is funded by a KL2 Mentored Career Development Program Scholar grant from Georgetown-Howard Universities Center for Clinical & Translational Science. The Center was established in 2010 and is funded by a National Institutes of Health Clinical and Translational Science Award. The KL2 grant funds junior faculty members starting translational research programs.

About Georgetown University Medical Center

Georgetown University Medical Center is an internationally recognized academic medical center with a three-part mission of research, teaching and patient care (through MedStar Health). GUMC's mission is carried out with a strong emphasis on public service and a dedication to the Catholic, Jesuit principle of cura personalis -- or "care of the whole person." The Medical Center includes the School of Medicine and the School of Nursing & Health Studies, both nationally ranked; Georgetown Lombardi Comprehensive Cancer Center, designated as a comprehensive cancer center by the National Cancer Institute; and the Biomedical Graduate Research Organization (BGRO), which accounts for the majority of externally funded research at GUMC including a Clinical Translation and Science Award from the National Institutes of Health. In fiscal year 2010-11, GUMC accounted for 85 percent of the university's sponsored research funding.

Karen Mallet | EurekAlert!
Further information:
http://www.georgetown.edu

More articles from Health and Medicine:

nachricht Unique brain 'fingerprint' can predict drug effectiveness
11.07.2018 | McGill University

nachricht Direct conversion of non-neuronal cells into nerve cells
03.07.2018 | Universitätsmedizin der Johannes Gutenberg-Universität Mainz

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

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

Im Focus: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

Im Focus: Chemical reactions in the light of ultrashort X-ray pulses from free-electron lasers

Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.

Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

Subaru Telescope helps pinpoint origin of ultra-high energy neutrino

16.07.2018 | Physics and Astronomy

Barium ruthenate: A high-yield, easy-to-handle perovskite catalyst for the oxidation of sulfides

16.07.2018 | Life Sciences

New research calculates capacity of North American forests to sequester carbon

16.07.2018 | Earth Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>