Research has explored the connection between Sjögren’s syndrome and intestinal dysbiosis associated with ocular mucosal disease. A recent study found that oral antibiotics and desiccating stress lead to extreme changes in the gut microbiota in mice. In patients with Sjögren’s syndrome, researchers found that patients with the most severe keratoconjunctivitis sicca and combined systemic and ocular disease had the lowest diversity of stool microbiota…... [Read More]
NEW YORK (Reuters Health)—Patients with inflammatory bowel disease (IBD) show imbalance in their fungal intestinal microbiota, according to new findings. “The fungal microbiota is a new actor to take into account in the pathogenesis of IBD and potentially in other diseases,” Dr. Harry Sokol of Hospital Saint-Antoine in Paris, an author of the new study,… [Read More]
Gut microbiota may provide insight into important environmental triggers for autoimmune diseases. New research in mice indicates that intestinal dysbiosis triggers a mucosal immune response that stimulates T and B cells, which are critical to the development of inflammatory arthritis…... [Read More]
The use of an interleukin (IL) 17A inhibitor resulted in gut microbial dysbiosis and features of subclinical intestinal inflammation in a subgroup of psoriatic arthritis (PsA) and spondyloarthritis (SpA) patients, according to a multidisciplinary, collaborative study across several institutions published in Arthritis & Rheumatology.1 Understanding the downstream effects of these perturbations is an important step… [Read More]
CHICAGO—At the 2019 ACR State-of-the-Art Clinical Symposium, an annual gathering featuring talks by key opinion leaders on the most salient topics for practicing rheumatologists and healthcare providers, Jose U. Scher, MD, director of the Microbiome Center for Rheumatology and Autoimmunity at NYU Langone Medical Center, New York City, was the featured speaker. In his remarks,… [Read More]
Researchers know human leukocyte antigen (HLA) molecules affect susceptibility to disease in general, and immunological disease in particular. In the case of ankylosing spondylitis (AS), the risk is primarily associated with HLA-B27, with smaller effects from other HLA alleles. Current thinking is that AS is caused by the presence of a genetically primed host because… [Read More]
A growing body of research is elucidating the role of intestinal microbiota in several autoimmune diseases, including rheumatoid arthritis (RA). Research published in December 2018 Arthritis & Rheumatology increases our understanding of the “extent and nature of mucosal immune activation during preclinical arthritis.”1 The research objective, according to the report, was to “dissect intestinal mucosal immune… [Read More]
The microbiome comprises diverse microbial flora, including bacteria, viruses and fungi, that live on mucosal surfaces, predominantly the skin and digestive tract. Microbes evolved billions of years prior to the development of modern Homo sapiens 200,000 years ago; we have always existed with their ubiquitous presence. Despite this, the first microbe was not visualized until… [Read More]
CHICAGO—At the 2018 ACR/ARHP Annual Meeting, Allen C. Steere, MD, delivered the Rheumatology Research Foundation Memorial Lecture honoring the late Charles M. Plotz, MD: Linking Gut Microbial Immunity with Autoimmunity in Joints in Patients with Rheumatoid Arthritis. Dr. Steere is professor of medicine at Harvard Medical School, Boston, and director of translational research in rheumatology… [Read More]
New research reinforces the hypothesis that the gut microbiome triggers mucosal and systemic immune responses in patients with rheumatoid arthritis. The research, published in Arthritis & Rheumatology May 2017, found that subgroups of patients with RA have differential immunoglobulin G (IgG) or IgA immune reactivity with Prevotella copri, an intestinal microbe that appears to be… [Read More]