Autoimmune diseases, in which the immune system attacks the body, are fairly common. Thyroid diseases, type 1 diabetes, rheumatoid arthritis, psoriasis and inflammatory bowel disease are some examples. Autoimmune diseases are associated with increased inflammation in the tissue, which in some cases is linked to an increased propensity to develop clots in the veins.
“The most dangerous complication of a blood clot is a blood clot on the lung”, says Associate Professor Bengt Zöller, who is the principal investigator for the study, which was carried out at the Centre for Primary Health Care Research in Malmö, Sweden.
The study involved 535 000 patients who had been admitted to hospital for 33 different autoimmune diseases. The risk of a blood clot on the lung was compared with the risk for individuals who had not been admitted to hospital for an autoimmune disease. The risk was adjusted to account for other diseases, age and socioeconomic factors. The results show that 31 of the 33 autoimmune diseases studied were associated with an increased risk of a blood clot on the lung.
“The risk was particularly high in the first year – around six times higher on average in all the groups with autoimmune diseases compared with the control group. For some of the diseases, the risk was even higher in the first year”, says Bengt Zöller.
The diseases that stand out are idiopathic thrombocytopenic purpura (lack of platelets caused by an immune response), systemic lupus erythematosus (SLE), polymyositis (muscle inflammation), dermatomyositis (skin and muscle inflammation) and polyarteritis nodosa (inflammation in medium-sized arteries), which all had at least a tenfold risk increase. Rheumatoid arthritis, a relatively common disease, was associated with a sevenfold increase in the risk of a blood clot on the lung. Type 1 diabetes entailed a sixfold increase in the risk of a blood clot on the lung in the first year following hospital treatment.
“The risk of a blood clot fell with time. It was still around 50 per cent higher after 1–5 years, yet there remained an increased risk for up to ten years after the first admission to hospital for many autoimmune conditions”, stresses Bengt Zöller.
The research suggests that it is possible that patients who have been admitted to hospital for autoimmune diseases require preventive treatment for blood clots in the same way as following major surgery.
“However, further controlled studies are needed to determine the effect of preventive treatment”, says Bengt Zöller.Publication:
Bengt Zöller, Centre for Primary Health Care Research, Lund University and Region Skåne, Sweden, +46 40 391954, +46 706 691476, firstname.lastname@example.org
Megan Grindlay | idw
Do microplastics harbour additional risks by colonization with harmful bacteria?
05.04.2018 | Leibniz-Institut für Ostseeforschung Warnemünde
Rutgers-led innovation could spur faster, cheaper, nano-based manufacturing
14.02.2018 | Rutgers University
University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.
Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.
Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.
Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...
Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.
The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...
Stable joint cartilage can be produced from adult stem cells originating from bone marrow. This is made possible by inducing specific molecular processes occurring during embryonic cartilage formation, as researchers from the University and University Hospital of Basel report in the scientific journal PNAS.
Certain mesenchymal stem/stromal cells from the bone marrow of adults are considered extremely promising for skeletal tissue regeneration. These adult stem...
In the fight against cancer, scientists are developing new drugs to hit tumor cells at so far unused weak points. Such a “sore spot” is the protein complex...
13.04.2018 | Event News
12.04.2018 | Event News
09.04.2018 | Event News
20.04.2018 | Physics and Astronomy
20.04.2018 | Interdisciplinary Research
20.04.2018 | Physics and Astronomy