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54 active trials for Autoimmune Diseases

Effects of Low-Level Laser Therapy on Oxidative Stress Levels...

Hashimoto's thyroiditis (HT) is the most commonly observed inflammatory and autoimmune disease of the thyroid gland. Many genetic and environmental factors play a role in the pathogenesis of the disease, including iodine exposure, drugs, chemicals, toxins, infections and smoking. In recent years, the relationship between oxidative stress level and thyroid autoantibodies in HT has attracted increasing attention of researchers. In the studies, it has been reported that oxidative stress levels may increase due to chronic inflammation, insufficient thyroid hormone levels, excessive autoimmune response and excessive iodine intake. Data from clinical studies clearly show that the balance between oxidants and antioxidants shifts towards the oxidative side in patients with autoimmune thyroiditis, suggesting that oxidative stress may be a key event in the pathophysiology of the disease, independent of thyroid function. Recent evidence has suggested that low-dose laser therapy (DDLT) can improve thyroid function and reduce levels of thyroid peroxidase antibodies (TPOAb) in patients with hypothyroidism caused by chronic autoimmune thyroiditis. In the literature, data examining the effects of DDLT on oxidative stress level and quality of life in patients with HT is limited. As far as we know, it will be the first study examining the effect of DDLT on oxidative stress, fatigue and quality of life in cases diagnosed with HT. The aim of the study is to examine the effects of LT4 treatment combined with DDLT on thyroid autoimmunity, oxidative stress, fatigue and quality of life in patients with Hashimoto's diagnosis.

Start: February 2021
Chronic Inflammatory Disease, Lifestyle and Risk of Disease

Chronic inflammatory diseases (CID) - including inflammatory bowel diseases (Crohn's disease and ulcerative colitis), rheumatic conditions (rheumatoid arthritis, axial spondyloarthritis, psoriatic arthritis), inflammatory skin diseases (psoriasis) and multiple sclerosis are diseases of the immune system that have some shared genetic and environmental predisposing factors, but still little is known on the effects of lifestyle as a prognostic factor on disease risk. This observational study will contribute to preexisting research on lifestyle factors by identifying diet factors associated with risk of developing CID, using prospective register data. The study will use data from all of the 57,053 participants in the Danish cohort "Diet, Health and Cancer (DHC)" together with registry data. Blood samples, anthropometric measures and questionnaire data on diet and lifestyle were collected at the DHC study entry. The National Patient Registry (NPR) will be used to obtain to identify patients with CID during follow-up. Follow-up information on death and immigration will be collected in March 2018 from the Danish Civil Registration Register. The outcome CID is defined as at least one of the following CIDs: Crohn's disease, ulcerative colitis, psoriasis/psoriatic arthritis, rheumatoid arthritis/ankylosing arthritis, or multiple sclerosis, during the follow-up period from 1993 to March 2018. The primary hypothesis is that "the risk of CID will be significantly higher among those with a low fibre/high red and processed meat intake compared to those with a high fibre/low red and processed meat intake." Based on previous research on a shared etiology in CIDs a second hypothesis is that "the postulated causality between low fibre/high red and processed meat intake and risk of developing CID is applicable for each of the CID-diagnoses." The core study is an open register-based cohort study. The study does not need approval from the local Ethics committee or Institutional Review Board by Danish law. The study was approved by the Danish Data Protection Agency (2012-58-0018) Study findings will be disseminated through peer-reviewed journals, patient associations and presentations at international conferences.

Start: November 2018