A variety of immune and nonimmune pathophysiologic mechanisms causing the disruption of alveolar capillaries with bleeding into the alveolar spaces can lead to diffuse alveolar hemorrhage (DAH). Immune-mediated mechanisms can cause DAH with or without the presence of capillaritis. The antineutrophil cytoplasmic antibody (ANCA)–associated vasculitis (AAV) syndromes—granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA)—are the…
Search results for: rituximab
Roche & Novartis Face Off in Biosimilar Drug Battle
ZURICH (Reuters)—Switzerland’s biggest drugmakers are clashing over cheaper copies of pricey biotech drugs—one reason why Novartis is considering selling its $14 billion stake in cross-town rival Roche. With a copycat of Roche’s blood cancer drug Rituxan (rituximab) pending European approval, Novartis aims to muscle in on a share of sales that last year hit 7…
Patients with Lupus: Plasmacytoid Dendritic Cells Fail to Induce Regulatory B Cells
A recent study found that plasmacytoid dentricitic cells (pDCs) control the differentiation of immature B cells into regulatory B (Breg) cells or plasmablast, depending on the concentration of IFNα. For patients with SLE, researchers found that immune regulatory feedback between pDCs and Breg cells is dysfunctional, with the exception of patients who respond to rituximab…
Hidradenitis Suppurativa Can Complicate Biologic Therapy
NEW YORK (Reuters Health)—Hidradenitis suppurativa can complicate biologic therapy of chronic inflammatory diseases, according to a retrospective study from France and Belgium. Hidradenitis suppurativa (HS) often responds to treatment with biologic agents, but there have been scattered reports of patients developing HS while undergoing biologic therapy. Dr. Coline Faivre from Hôpital Edouard Herriot in Lyon,…
Blogging Basics Rheumatologists Should Know
To blog or not to blog? As a rheumatologist, you may have pondered this question. Perhaps getting some insight from rheumatologists who already blog and a professional blog writer may help you find the answer. Obviously, if you devoted time to blogging you would want it to be beneficial. For Paul Sufka, MD, rheumatologist, HealthPartners,…
Diagnostic Imaging in Lupus Patient with Foot Pain: Findings
View the question. Findings/Diagnosis An anteroposterior (AP) radiograph of the right foot shows hallux valgus of the first metatarsal phalangeal (MTP) joint, erosive changes at the first and fifth metatarsal bones and degenerative changes at the fourth and fifth metatarsal-cuboid joints. An AP radiograph of the left foot shows extensive erosive and degenerative changes at…
Case Report: Sternoclavicular Erosions in a Patient with Uncontrolled RA
Sternoclavicular joint involvement has rarely been reported in the context of active rheumatoid arthritis (RA).1 Traditionally, rheumatologists use serial radiographs of hands and feet to diagnose, monitor for progression or evaluate the response to treatment. The sternoclavicular (SC) joint is not a typical joint assessed for RA. However, the fact that it is a diarthrodial…
GPA Patient Carries NORD Banner to Top of Mt. Everest
On May 23, 2010, Cindy Abbott was standing on top of the world. She had spent the past 51 days climbing Mount Everest, the tallest mountain in the world, and had finally reached the summit. “I was very anxious to get off and get back down,” she says, adding that the summit is about the…
Sjögrens Syndrome: The Need to Bridge Patient Symptoms & Objective Findings
Despite a generation of advances in molecular biology, a huge gap exists between the Sjögren’s syndrome (SS) patient’s description of their symptoms and the objective findings. Current issues include: Many SS patients are misclassified as either rheumatoid arthritis (RA) or systemic lupus erythematosus (SLE), even within rheumatology clinics. Frequently, the sickest SS patients with extraglandular…
Rheumatology Drug Updates on Brentuximab Vedotin, Tofacitinib Citrate
Brentuximab Vedotin Enters Phase 2 Trials Brentuximab vedotin (Adcetris), an antibody-drug conjugate (ADC) directed at CD30, is currently entering Phase 2 clinical trials for treating systemic lupus erythematosus (SLE).1 The ADC encompasses an anti-CD30 monoclonal antibody, which is attached by a protease-cleavable linker to a microtubule-disrupting agent, known as monomethyl auristatin E (MMAE). The ADC…
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