Max I. Hamburger

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To determine whether reticuloendothelial-system immunospecific Fc-receptor function is abnormal in patients with systemic lupus erythematosus, we studied the clearance of IgG-sensitized 51Cr-labeled erythrocytes by these splenic macrophage membrane receptors in 15 untreated patients. Fc-specific clearance rates were strikingly abnormal in 13 of 15 patients(More)
Dermatitis herpetiformis is associated with the HLA-B8/DRw3 haplotype in over 90 per cent of patients, and various percentages have been reported to have circulating immune complexes. Since removal of immune complexes from the circulation is thought to depend on the Fc-receptor function of tissue macrophages, we studied this function by measuring the(More)
The reticuloendothelial system is thought to play an important role in removing immune complexes and other immunologically active substances from the circulation via interaction with specific cell-surface receptors. The function of the reticuloendothelial system in humans with autoimmune diseases was studied in vivo by measuring the rate of removal of(More)
Extracorporeal removal or modulation of circulating immune complexes (CIC) from plasma of animals and humans with malignant disease may be associated with induction of immune-mediated anti-tumor responses. Immunoadsorption columns containing heat-killed and formalin-fixed Staphylococcus aureus or staphylococcal protein A have been used for this purpose but(More)
Serological studies conducted on sera from a group of 31 male SLE patients revealed a 32% prevalence of 7S IgM and a 9.7% prevalence of IgA deficiency. Previous reports using similar methods indicated a higher (43-50%) prevalence of 7S IgM than was found in studies involving predominantly females with SLE (15-18%), and an overall prevalence of IgA(More)
BACKGROUND AND OBJECTIVES Intra-articular (IA) hyaluronans (HAs) are indicated for pain relief of osteoarthritis (OA) of the knee. Hyalgan (sodium hyaluronate), Supartz (sodium hyaluronate), and Synvisc (hylan G-F 20) are Food and Drug Administration-approved HA products. They are derived from rooster combs; Hyalgan and Supartz are naturally derived(More)
In view of reported delayed clearance of 51Cr labelled IgG sensitized autologous erythrocytes in systemic lupus erythematosus, we measured clearance half-time (t1/2) in 16 patients with the drug induced lupus erythematosus syndrome. The mean t1/2 for the patients with drug induced lupus was 52 min, and for 16 normals mean was 48 min, a difference without(More)
A serial study of reticuloendothelial system splenic Fc receptor function was undertaken in 13 patients with systemic lupus erythematosus (SLE). Fc receptor function was assessed by measuring the clearance half times of IgG-sensitized 51Cr-labeled autologous erythrocytes from the circulation. Prolonged clearance half times were initially detected in all(More)
INTRODUCTION The aim of this study was to compare the response between subsequent use of anti-tumor necrosis factor α (anti-TNF) agents and biologic disease-modifying anti-rheumatic drugs (bDMARD) with other mechanism of action (MOA) in rheumatoid arthritis (RA) patients with history of anti-TNF treatment as their first bDMARD. METHODS A retrospective(More)
Patients with systemic lupus erythematosus (SLE) have abnormal reticuloendothelial system (RES) IgG Fc receptor function which is correlated with disease activity and levels of immune complexes (IC). We studied RES function, IC levels, clinical and laboratory manifestations in 43 patients with RA. The articular index was abnormal in 42 patients (range of 6(More)