T cells from patients with lupus or treated with the lupus-inducing drug hydralazine have defective ERK phosphorylation. The reason for the impaired signal transduction is unknown but important to elucidate, because decreased T cell ERK pathway signaling causes a lupus-like disease in animal models by decreasing DNA methyltransferase expression, leading to DNA hypomethylation and overexpression...

Systemic lupus erythematosus is a polycongenic autoimmune disease characterized by the production of antinuclear antibodies that lead to subsequent end organ damage. The study of lupus is complicated by its polycongenic origin, contributions from hormones and the environment, epistasis among susceptibility loci, suppressive modifiers, and the fact that a single susceptibility locus may encompas...

Pleural involvement in drug-induced lupus erythematosus is not uncommon. Lupus erythematosus cells were found in vivo in the pleural of an elderly patient who had received procainamide (Pronestyl) hydrochloride (2 gm daily) for nine months. Patients who initially have pleural effusions while receiving drugs capable of inducing lupus erythematosus should have the fluid analyzed for lupus erythem...

Lupus profundus, also known as lupus panniculitis, is a subtype of chronic cutaneous lupus erythematosus. It is characterised by a female predominance and the median age of onset is 30-40 years. Patients present with tender, subcutaneous nodules and plaques especially over the face, upper arms, upper trunk, breasts, buttocks and thighs. We report a young Chinese lady with lupus profundus who pr...

Systemic lupus erythematosus (SLE) is a chronic autoimmune disease characterized with immune complex formation and renal involvement of lupus and may include several kinds of pathological conditions, but mostly, it is associated with immune complex-induced glomerular disease. Pauci-immune lupus nephritis is a very rare condition. We describe a 45-year-old female patient with pauci-immune cresce...

Twenty-seven patients with histologically confirmed lupus nephritis were studied to identify the incidence of lupus band and its significance to histological patterns of nephritis and complement levels. It was found that the kidney involvement is 2.5 times more frequent in lupus band positive patients. The association of a positive lupus and low C3 level signifies the presence of diffuse prolif...

Regulation of serum anti-DNA antibody in systemic lupus erythematosus (SLE) by an antiidiotypic antibody was evaluated. Various sera from SLE patients in active and inactive states of their disease, as well as sera from normal individuals, were first completely depleted of anti-DNA and of DNA by affinity chromatography. The suppressive capacity of equimolar concentrations of the various deplete...

The authors ascertained cardiovascular events (myocardial infarction and angina pectoris) in 498 women with systemic lupus erythematosus seen at the University of Pittsburgh Medical Center from 1980 to 1993 (3,522 person-years). Subjects were stratified by age, and cardiovascular event incidence rates were determined. The authors compared these rates with cardiovascular event rates were determi...

INTRODUCTION Systemic lupus erythematosus is more prevalent among Asians, African Americans, and Hispanics than in Caucasians. Progress in its management over the past few decades has resulted in improved patient survival, although a considerable proportion of patients are still afflicted with long-term illnesses such as chronic renal failure secondary to lupus nephritis. METHODS AND RESULTS ...

To formally establish the risk of lupus anticoagulants and anticardiolipin antibodies for arterial and venous thrombosis, we ran a MEDLINE search of the literature from 1988 to 2000. Studies were selected for their case-control (11), prospective (9), cross-sectional (3), and ambispective (2) design. They provided or enabled us to calculate the odds ratio with 95% confidence interval (CI) of lup...