title: Alterations of purine metabolism in mononuclear cell populations of first degree relatives of insulin-dependent diabetic individuals with disturbed glucose tolerance.
abstract: In a T lymphocyte and macrophage-depleted mononuclear cell population of the peripheral venous blood of 10 of 41 first degree relatives of insulin-dependent diabetic individuals who had or had had disturbed glucose tolerance adenine uptake rates were significantly increased, the relative adenine incorporation rates into the adenine nucleotides, however, were diminished. Values were compared with those of 30 controls. In 7 of 9 investigated individuals with increased adenine uptake rates antibody-dependent cellular cytotoxicity against rat Langerhans islets (ADCC) was increased in the same cell population. In these individuals the number of diabetes manifestations was relatively high. Adenine uptake rates, ADCC and glucose tolerance changed with time.
authors.affiliation: Institute of Diabetes Gerhardt Katsch Karlsburg, Germany.
authors.forename: J H
authors.initials: JH
authors.lastname: Schäfer
authors.forename: T B
authors.initials: TB
authors.lastname: Jira
authors.forename: E
authors.initials: E
authors.lastname: Köhler
authors.forename: D
authors.initials: D
authors.lastname: Michaelis
authors.forename: I M
authors.initials: IM
authors.lastname: Rjasanowski
mesh_terms: D000225:Adenine / Q000378:metabolism*; D000328:Adult; D000920:Antibody-Dependent Cell Cytotoxicity; D003922:Diabetes Mellitus, Type 1 / Q000276:immunology / Q000378:metabolism*; D005260:Female; D005947:Glucose / Q000378:metabolism*; D005951:Glucose Tolerance Test; D006801:Humans; D007963:Leukocytes, Mononuclear / Q000378:metabolism*; D008297:Male; D011687:Purines / Q000378:metabolism
chemical_list: D011687:Purines; D005947:Glucose; D000225:Adenine