The aim of the present study was to test whether proinsulin autoantibodies (IgG‐PAA), insulin autoantibodies (IgG‐IAA), and islet cell antibodies (ICA) may be used to identify subjects at risk for Type 1 diabetes. Pre‐diabetic sera from 18 individuals who later developed diabetes were tested. Results were compared with 18 age‐, sex‐, and HLA‐DR‐matched non‐diabetic control subjects from families with Type 1 diabetes. At a mean of 2.4 yr before the onset of diabetes, ICA were found in 13 patients (vs 0 control subjects, p < 0.001), ELISA‐determined IgG‐IAA in 8 patients (vs 1 control subject, p < 0.05) and ELISA‐determined IgG‐PAA in 4 patients (vs 2 control subjects, NS). ELISA‐determined IgG‐PAA do not appear to be useful predictors of the future development of Type 1 diabetes. 1990 Diabetes UK
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Queen Mary Univ London, William Harvey Res Inst, Barts & London Sch Med & Dent, Ctr Biochem Pharmacol, London EC1M 6BQ, England
Univ Campus Biomed, Endocrinol & Diabet, I-00128 Rome, ItalyQueen Mary Univ London, William Harvey Res Inst, Barts & London Sch Med & Dent, Ctr Biochem Pharmacol, London EC1M 6BQ, England
Strollo, Rocky
Vinci, Chiara
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Queen Mary Univ London, William Harvey Res Inst, Barts & London Sch Med & Dent, Ctr Biochem Pharmacol, London EC1M 6BQ, England
Univ Campus Biomed, Endocrinol & Diabet, I-00128 Rome, ItalyQueen Mary Univ London, William Harvey Res Inst, Barts & London Sch Med & Dent, Ctr Biochem Pharmacol, London EC1M 6BQ, England
Vinci, Chiara
Arshad, Mayda H.
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Queen Mary Univ London, William Harvey Res Inst, Barts & London Sch Med & Dent, Ctr Biochem Pharmacol, London EC1M 6BQ, EnglandQueen Mary Univ London, William Harvey Res Inst, Barts & London Sch Med & Dent, Ctr Biochem Pharmacol, London EC1M 6BQ, England
Arshad, Mayda H.
Perrett, David
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Queen Mary Univ London, Barts & London Sch Med & Dent, William Harvey Res Inst, BioAnal, London, EnglandQueen Mary Univ London, William Harvey Res Inst, Barts & London Sch Med & Dent, Ctr Biochem Pharmacol, London EC1M 6BQ, England
Perrett, David
Tiberti, Claudio
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Univ Roma La Sapienza, Dept Expt Med, I-00185 Rome, ItalyQueen Mary Univ London, William Harvey Res Inst, Barts & London Sch Med & Dent, Ctr Biochem Pharmacol, London EC1M 6BQ, England
Tiberti, Claudio
Chiarelli, Francesco
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Univ G dAnnunzio, Dept Pediat, Osped Policlin, Chieti, ItalyQueen Mary Univ London, William Harvey Res Inst, Barts & London Sch Med & Dent, Ctr Biochem Pharmacol, London EC1M 6BQ, England
Chiarelli, Francesco
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Napoli, Nicola
Pozzilli, Paolo
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Univ Campus Biomed, Endocrinol & Diabet, I-00128 Rome, Italy
Queen Mary Univ London, Blizard Inst, Barts & London Sch Med & Dent, Ctr Immunobiol, London, EnglandQueen Mary Univ London, William Harvey Res Inst, Barts & London Sch Med & Dent, Ctr Biochem Pharmacol, London EC1M 6BQ, England
Pozzilli, Paolo
Nissim, Ahuva
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Queen Mary Univ London, William Harvey Res Inst, Barts & London Sch Med & Dent, Ctr Biochem Pharmacol, London EC1M 6BQ, EnglandQueen Mary Univ London, William Harvey Res Inst, Barts & London Sch Med & Dent, Ctr Biochem Pharmacol, London EC1M 6BQ, England