Development of selective IgM deficiency in systemic lupus erythematosus patients with disease of long duration.
Statistical analysis of serum immunoglobulin levels in 54 systemic lupus erythematosus (SLE) patients showed a decrease in serum IgM (normal 77 +/- 26 mg/dl; P less than 0.001) that was closely related to disease duration. The longer the duration of SLE, the more striking the decrease in serum levels of IgM (r = -0.74, P less than 0.01). Selective IgM deficiency (less than 47 mg/dl) occurred in SLE patients whose disease was clinically inactive or less active.
Saiki
O
O
Third Department of Internal Medicine, Osaka University Medical School, Japan.
Saeki
Y
Y
Tanaka
T
T
Doi
S
S
Hara
H
H
Negoro
S
S
Igarashi
T
T
Kishimoto
S
S
D000293:Adolescent; D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000097:blood; D004406:Dysgammaglobulinemia / Q000209:etiology; D005260:Female; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis; D007074:Immunoglobulin G / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis / Q000172:deficiency*; D008180:Lupus Erythematosus, Systemic / Q000097:blood* / Q000150:complications; D008297:Male; D008875:Middle Aged
D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M