Radioimmune assay of heterologous serum γ-globulin in patients receiving rabbit antihuman thymocyte globulin

Charles P. Bieber, Eva Lydick, Randall B. Griepp, Lyle A. David, Philip E. Oyer, Edward B. Stinson

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

A radioimmune assay (RIA) method for detecting heterologous serum rabbit γ-globulin (RG) and antibody to this protein is described. The methodology is used for monitoring serum levels of rabbit globulin in patients receiving rabbit ATG (RATG). In 7 cardiac recipients receiving RATG, maximum serum levels of RG were achieved 1-3 days after administration of final dose. RG half-life subsequent to peak serum levels was rapid (X = 36 hr) in 4 patients and prolonged (X = 18 days) in 3 patients. Patient antibody to rabbit γ-globulin was detectable only in those patients with short RG half-life. Antirabbit antibody titers in these patients were extremely low and barely detectable by RIA.

Original languageEnglish
Pages (from-to)393-398
Number of pages6
JournalTransplantation
Volume20
Issue number5
DOIs
StatePublished - Nov 1975
Externally publishedYes

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