Osteoimmunology is an emerging field that focuses on the interaction between bone and the immune system. CD4+ T cells play an important role in the bone marrow and modulate the differentiation of bone-resorbing osteoclasts. This article reviews the role of CD4+ T cells as an osteoclastogenic population in inflammatory bowel disease…
Route of Iron Replacement Doesn’t Impact IBD Activity, Quality of Life
NEW YORK (Reuters Health)—The route of iron replacement therapy alters the gut microbiome and metabolomics in patients with inflammatory bowel disease (IBD), but the route is unrelated to disease activity and quality of life, according to a new study. “Crohn’s disease patients are extremely fragile to disturbances and one might speculate about consequences in long-term…
Fungal Microbiota Dysbiosis Seen in Inflammatory Bowel Disease
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,…
Gut-on-a-Chip Provides Insight into Microbiome & Intestinal Inflammation
Researchers have created a microdevice with Caco-2 intestinal epithelial cells to aid in studying the human gut microbiome’s role in homeostasis, immune modulation and pathology. Using this gut-on-a-chip, researchers were able to examine in detail the processes they think result in chronic intestinal inflammation…
Anti-TNF-Associated Skin Lesions Common in Inflammatory Bowel Disease
NEW YORK (Reuters Health)—Patients with inflammatory bowel disease (IBD) commonly develop skin lesions related to anti-tumor necrosis factor (anti-TNF) medications, according to a retrospective study. “We were most surprised by the relatively high percentage (30%) of patients developing skin problems while being treated with anti-TNF agents,” Dr. Isabelle Cleynen from KU Leuven, Belgium, tells Reuters…
Does Methotrexate Increase Skin Cancer Risk?
A recent study connects the use of immunosuppressant and biologic agents to an increased risk of nonmelanoma skin cancer in patients being treated for RA and IBD…
Helicobacter & Campylobacter May Play Roles in IBD
NEW YORK (Reuters Health)—Helicobacter and Campylobacter species appear to play opposing roles in inflammatory bowel disease (IBD), according to a systematic review and meta-analysis. The prevalence of IBD has increased steadily in the face of falling H. pylori infection rates, suggesting a negative association, whereas some studies have suggested that some Campylobacter species are involved…
Methotrexate Increases Risk of Recurrent Nonmelanoma Skin Cancer
NEW YORK (Reuters Health)—Methotrexate appears to increase the risk of recurrent nonmelanoma skin cancer (NMSC) in patients with rheumatoid arthritis (RA), according to a retrospective study. “We have known for some time that several of the immunosuppressive agents used to treat RA and inflammatory bowel disease (IBD) are also associated with an increased risk of…
Genetic Data Suggest Dividing IBD into 3 Forms
NEW YORK (Reuters Health)—Data from a genetic association study suggest that inflammatory bowel disease (IBD) should be divided into a three-group continuum, rather than the current division between Crohn’s disease and ulcerative colitis. “The current clinical classifications of IBD, while important and useful, are a simplification of the true biological variation of this disease,” Dr….
Treating IBD with Anti-TNF Tied to Higher Risk of Demyelinating Disease
NEW YORK (Reuters Health)—Treating inflammatory bowel disease (IBD) with tumor necrosis factor (TNF) inhibitors is associated with a doubling of the risk of central nervous system demyelinating disease, researchers from Denmark report. “Based on the current evidence anti-TNF should be used cautiously in patients with an own or family history of demyelinating disease,” Dr. Nynne…