Patients who develop neuropsychiatric symptoms of SLE have a small nucleotide polymorphism (SNP) in an intron in a Ca++ ion channel gene that influences some, but not all, events regulated by Ca++. The SNP appears to influence activation induced apoptosis rates and cytokine production, specifically IL-4, in a disease- and genotype-specific manner…
Search results for: calcium
Case Report: The Hairdresser Who Couldn’t Comb Her Hair
Polymyalgia rheumatica (PMR) is an inflammatory rheumatic condition characterized by pain and morning stiffness at the neck, shoulders and hip girdle. It can be associated with giant cell arteritis (GCA); in fact, the two disorders may represent a continuum of the same disease process. This case describes a patient who initially refused treatment for PMR…
Taking Vitamin D Supplements May Not Improve Bone Health
(Reuters Health)—Vitamin D supplementation may not improve bone density or prevent fractures and falls in adults, a large new analysis suggests. After combining data from 81 randomized controlled trials, researchers found no bone benefits from supplementing the vitamin, according to the report in The Lancet Diabetes & Endocrinology, online October 4. “Our results show that…
Bone Mineral Density Most Important Determinant of Fracture Risk
NEW YORK (Reuters Health)—In what is believed to be the largest study investigating genetic and clinical determinants of osteoporotic fracture risk, only a genetic predisposition to low bone mineral density (BMD) had a potential causal role to play. “Notably, genetic predisposition to lower levels of vitamin D and estimated calcium intake from dairy sources were…
Improve Your Recognition & Treatment of Osteoporosis
BALTIMORE—Rheumatologists may not think about osteoporosis on a daily basis, but they should, said Dr. Karl Insogna, the Ensign Professor of Medicine at Yale University School of Medicine and director of the Yale Bone Center in New Haven, Conn., in his recent lecture at the Maryland Society for the Rheumatic Diseases. With approximately 75 million…
Learn to Spot Neuropathic Arthropathy Mimicking RA
Rheumatoid arthritis (RA) is characterized by polyarthritis, especially involving hands and wrists. Without treatment, RA usually evolves to articular deformities. Unfortunately, although rheumatoid deformities are characteristic, they are not pathognomonic, and we should be aware of possible mimics.1 Neuropathic arthropathy (NA), similar to other diseases, such as hemochromatosis, psoriatic arthritis, calcium pyrophosphate deposition disease, Jaccoud…
Case Illustrates the Difficulty Diagnosing Granulomatosis with Polyangiitis
Granulomatosis with polyangiitis (GPA) was first described in the British Medical Journal in 1897 by Scottish otolaryngologist Peter McBride.1 GPA is a relatively rare, systemic necrotizing vasculitis that can make diagnosis challenging. The incidence has been estimated anywhere between two and 12 cases per million.2 GPA mainly affects adults between the ages of 45 and…
Neutrophil Extracellular Traps & Their Role in Autoimmunity
Certain medications have been associated for decades with the development of drug-induced autoimmunity. New research published in March 2018 in Arthritis & Rheumatology suggests that NETs (neutrophil extracellular traps) are potentially implicated in the mechanisms that lead to drug-induced autoimmunity.1 Peter Grayson, MD, MSc, head of the Vasculitis Translational Research Program at the National Institute…
6 Things Endocrinologists Want Rheumatologists to Know
In your daily contact with rheumatology patients, you likely come across several who have type 1 or 2 diabetes. Are you doing all you can to maximize their treatment? Most physicians know about the damaging health effects of uncontrolled diabetes. From vision loss to kidney failure to nerve damage, those with diabetes require regular vigilance…
Case Report: Refractory Calciphylaxis in Lupus
Calciphylaxis is a poorly understood and life-threatening ischemic vasculopathy characterized by calcification of the small- and medium-size arteries in the skin, subcutaneous tissue and internal organs, which leads to thrombosis, tissue necrosis and painful skin ulcerations that won’t heal. The disease has a 50–80% mortality rate. Although affected patients typically have end-stage renal disease (ESRD)…
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