David Koffler

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Significant differences in both specificity and avidity of anti-DNA antibodies were observed in the sera of groups of patients with active systemic lupus erythematosus glomerulonephritis, active systemic lupus erythematosus without nephritis, and in IgG eluates obtained by DNAase digestion of isolated glomeruli from glomerulonephritic kidneys. With(More)
Paired serum and cerebrospinal fluid specimens from 19 patients with SLE and central nervous system dysfunction were studied with respect to cerebrospinal fluid IgG index (a measure of intrathecal IgG synthesis), isoelectric focusing using immunoperoxidase staining techniques to detect oligoclonal IgG, and determination of the cerebrospinal fluid/serum(More)
In patients with focal epilepsy, EEG spike rate fluctuates considerably over time. We had previously shown that seizure occurrence played an important role in these fluctuations. We undertook this study to confirm this finding with better control of critical variables such as state of alertness and spike quantification, and to assess the spatial extent of(More)
Antibodies were eluted from the isolated glomeruli prepared from the kidneys of 10 patients with the nephritis of systemic lupus erythematosus. Antibodies reacting primarily with buffer extracts of nuclei were eluted by acid treatment, and antibodies reacting mainly with DNA and nucleoprotein were eluted with deoxyribonuclease. Quantitative immunochemical(More)
Precipitin reactions of C1q in gel diffusion proved useful in detecting unknown complexes containing gamma-globulin in the sera of patients with SLE. Using this method low molecular weight C1q reactants also have been detected in a number of sera from patients with SLE as well as other diseases. Both the circulating complexes and the unidentified low(More)
Genetically related susceptibility for experimental autoimmune myasthenia gravis was investigated in nine inbred strains of rats immunized with heterologous acetylcholine (AChR) from Torpedo californica. Wistar Munich and Fischer strain animals consistently developed severe, fatal disease associated with impaired neuromuscular transmission and increased(More)
Single-stranded DNA (SDNA) occurs in high incidence and in greatest concentration in the sera of patients with systemic lupus erythematosus (SLE), where levels as high as 250 mug/ml were observed. SDNA appears to be an imunogen for anti-SDNA antibodies and forms complexes in vivo of both anti-SDNA-SDNA and anti-NDNA-SDNA types, which apparently play a role(More)
The membrane attack complex (MAC) of the complement system was localized in both glomeruli and peritubular regions of 22 kidneys manifesting systemic lupus erythematosus (SLE) nephritis. A similar distribution was observed for immune complex markers (IgG, Clq, and C3) and MAC in glomeruli, although the deposits of MAC were more discrete and showed lesser(More)