A novel radioligand binding assay to determine diagnostic accuracy of isoform-specific glutamic acid decarboxylase antibodies in childhood IDDM
Open accessAbstract
Insulin-dependent diabetes mellitus (IDDM) is associated with autoreactivity against GAD but the diagnostic sensitivity (positivity in disease) and specificity (negativity in health) of isoform-specific GAD antibodies have yet to be defined in assay systems suitable for screening large number of samples. One set of IDDM patient (n = 10) and control (n = 50) standard sera were used to develop quantitative antibody assays with in vitro synthesized recombinant 35S-methionine-labelled GAD65 and GAD67, respectively, and protein A-Sepharose to separate free from antibody-bound ligand. Binding levels were not normally distributed (p < 0.0001) and therefore, the diagnostic accuracy of GAD antibodies was analysed by the ROC plots in population-based, consecutively-diagnosed, recent onset, 0-14 year-old patients (n = 105), and matched, healthy control subjects (n = 157). The ROC plots showed that the diagnostic sensitivity of GAD65 antibodies was 77% and the specificity 92% compared with 8% and 98%, respectively for GAD67 antibodies. In the IDDM sera, GAD65 and GAD67 antibodies were concordant in 7% (6 of 81) and GAD65 antibodies and ICA in 89% (72 of 81) without a correlation between the autoantibody levels. Autoantibodies to recombinant human islet GAD65 are specific and sensitive markers for childhood IDDM in this immunoassay with in vitro synthesized 35S-methionine-labelled recombinant GAD.
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Cites
Receiver-operating characteristic (ROC) plots: a fundamental evaluation tool in clinical medicine
ZWEIG, M. H., & Campbell, G. (1993) · Clinical Chemistry · doi:10.1093/clinchem/39.4.561 · Cited by 6,528 · see citing works
Basic principles of ROC analysis
Metz, C. E. (1978) · Seminars in Nuclear Medicine · doi:10.1016/s0001-2998(78)80014-2 · Cited by 6,058 · see citing works
Baekkeskov, S., Aanstoot, H.-J., Christgai, S., Reetz, A., Solimena, M., Cascalho, M., Folli, F., Richter-Olesen, H., & Camilli, P.-D. (1990) · Nature · doi:10.1038/347151a0 · Cited by 1,964 · see citing works
Yang, K. L., & Tobin, M. J. (1991) · New England Journal of Medicine · doi:10.1056/nejm199105233242101 · Cited by 1,384 · see citing works
Two genes encode distinct glutamate decarboxylases
Erlander, M. G., Tillakaratne, N. J. K., Feldblum, S., Patel, N., & Tobin, A. J. (1991) · Neuron · doi:10.1016/0896-6273(91)90077-d · Cited by 1,213 · see citing works
Bækkeskov, S., Nielsen, J. H., Marner, B., Bilde, T., Ludvigsson, J., & Lernmark, Å. (1982) · Nature · doi:10.1038/298167a0 · Cited by 530 · see citing works
Self-citationTwo human glutamate decarboxylases, 65-kDa GAD and 67-kDa GAD, are each encoded by a single gene.
Bu, D.-F., Erlander, M. G., Hitz, B. C., Tillakaratne, N. J. K., Kaufman, D. L., Wagner-McPherson, C., Evans, G. A., & Tobin, A. J. (1992) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.89.6.2115 · Cited by 493 · see citing works
Autoimmunity to two forms of glutamate decarboxylase in insulin-dependent diabetes mellitus
Kaufman, D. L., Erlander, M. G., Clare-Salzler, M., Atkinson, M. A., Maclaren, N. K., & Tobin, A. J. (1992) · Journal of Clinical Investigation · doi:10.1172/jci115573 · Cited by 490 · see citing works
Bækkeskov, S., Aanstoot, H., Christgau, S., Reetz, A., Solimena, M., Cascalho, M., Folli, F. B., Richter-Olesen, H., & Camilli, P. V. D. (1990) · Nature · doi:10.1038/347782a0 · Cited by 352 · see citing works
Bækkeskov, S., Landin, M., Kristensen, J. K., Srikanta, S., Bruining, G. J., Mandrup-Poulsen, T. R., de Beaufort, C. E., Soeldner, J. S., Eisenbarth, G. S., & Lindgren, F. (1987) · Journal of Clinical Investigation · doi:10.1172/jci112903 · Cited by 315 · see citing works
Karlsen, A. E., Hagopian, W., Grubin, C. E., Dube, S., Distèche, C. M., Adler, D. A., Bärmeier, H., Mathewes, S. L., Grant, F. J., & Foster, D. C. (1991) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.88.19.8337 · Cited by 279 · see citing works
Self-citation64 000 Mr autoantibodies as predictors of insulin-dependent diabetes
Atkinson, M. A., Maclaren, N. K., Riley, W. J., Sharp, D., & Lacey, P. E. (1990) · The Lancet · doi:10.1016/0140-6736(90)91241-2 · Cited by 203 · see citing works
Hagopian, W., Karlsen, A. E., Gottsäter, A., Landin‐Olsson, M., Grubin, C. E., Sundkvist, G., Petersen, J. S., Boel, E., Dyrberg, T., & Lernmark, Å. (1993) · Journal of Clinical Investigation · doi:10.1172/jci116195 · Cited by 199 · see citing works
Self-citationDahlquist, G. G., Blom, L., Tuvemo, T., Nystr�m, L., Sandstr�m, A., & Wall, S. (1989) · Diabetologia · doi:10.1007/bf00265396 · Cited by 187 · see citing works
Antibodies to Glutamic Acid Decarboxylase Discriminate Major Types of Diabetes Mellitus
Rowley, M. J., Mackay, I. R., Chen, Q.-Y., et al. (1992) · Diabetes · doi:10.2337/diab.41.4.548 · Cited by 154 · see citing works
Bottazzo, G. F., & Gleichmann, H. (1986) · Diabetologia · doi:10.1007/bf00456124 · Cited by 145 · see citing works
Plasmapheresis in the initial treatment of insulin-dependent diabetes mellitus in children.
Ludvigsson, J., Hedïng, L. G., Liedén, G., Marner, B., & Lernmark, Å. (1983) · BMJ · doi:10.1136/bmj.286.6360.176 · Cited by 144 · see citing works
Self-citationHagopian, W., Michelsen, B. K., Karlsen, A. E., et al. (1993) · Diabetes · doi:10.2337/diabetes.42.4.631 · Cited by 134 · see citing works
Self-citationMonoclonal antibodies to glutamic acid decarboxylase.
Gottlieb, D. I., Chang, Y.-M., & Schwob, J. E. (1986) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.83.22.8808 · Cited by 129 · see citing works
Atkinson, M. A., Kaufman, D. L., Newman, D., Tobin, A. J., & Maclaren, N. K. (1993) · Journal of Clinical Investigation · doi:10.1172/jci116192 · Cited by 121 · see citing works
Christgau, S., Schierbeck, H., Aanstoot, H., et al. (1991) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(18)54849-3 · Cited by 117 · see citing works
Velloso, L. A., Kämpe, O., Hallberg, A., Christmanson, L., Betsholtz, C., & Karlsson, F. A. (1993) · Journal of Clinical Investigation · doi:10.1172/jci116431 · Cited by 116 · see citing works
Landin‐Olsson, M., Palmer, J. P., Lernmark, Å., Blom, L., Sundkvist, G., Nyström, L., & Dahlquist, G. G. (1992) · Diabetologia · doi:10.1007/bf02221683 · Cited by 112 · see citing works
Self-citationChristou, N. V., Tellado-Rodriguez, J., Chartrand, L., GIANNAS, B., Meakins, J., Rode, H., & Gordon, J. (1989) · Annals of Surgery · doi:10.1097/00000658-198907000-00011 · Cited by 112 · see citing works
Serum exchange and use of dilutions have improved precision of measurement of islet cell antibodies
Bonifacio, E. E., Lernmark, Å., & Dawkins, R. L. (1988) · Journal of Immunological Methods · doi:10.1016/0022-1759(88)90274-8 · Cited by 110 · see citing works
Self-citationHagopian, W., Michelsen, B. K., Karlsen, A. E., et al. (1993) · Diabetes · doi:10.2337/diab.42.4.631 · Cited by 101 · see citing works
Self-citationKarlsen, A. E., Hagopian, W., Petersen, J. S., Boel, E., Dyrberg, T., Grubin, C. E., Michelsen, B. K., Madsen, O. D., & Lernmark, Å. (1992) · Diabetes · doi:10.2337/diab.41.10.1355 · Cited by 99 · see citing works
Self-citationChristie, M. R., Landin‐Olsson, M., Sundkvist, G., et al. (1988) · Diabetologia · doi:10.1007/bf00264766 · Cited by 97 · see citing works
Self-citationDifferential Expression of Glutamic Acid Decarboxylase in Rat and Human Islets
Petersen, J. S., Russel, S., Marshall, M. O., Kofod, H., Buschard, K., Cambon, N., Karlsen, A. E., Boel, E., Hagopian, W., Hejnæs, K. R., et al. (1993) · Diabetes · doi:10.2337/diab.42.3.484 · Cited by 96 · see citing works
Self-citationOlsson, M. L., Sundkvist, G., & Lernmark, Å. (1987) · Diabetologia · doi:10.1007/bf00299026 · Cited by 95 · see citing works
Self-citationMichelsen, B. K., Petersen, J. S., Boel, E., Møldrup, A., Dyrberg, T., & Madsen, O. D. (1991) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.88.19.8754 · Cited by 94 · see citing works
Self-citationSeißler, J., Amann, J., Mauch, L., et al. (1993) · Journal of Clinical Investigation · doi:10.1172/jci116714 · Cited by 78 · see citing works
The Fourth International Serum Exchange Workshop to standardize cytoplasmic islet cell antibodies
Lernmark, Å., Molenaar, J. L., van Beers, W. A. M., Yamaguchi, Y., Nagataki, S., Ludvigsson, J., Maclaren, N. K., Arnaiz‐Villena, A., Barbosa, J., deBeaufort, C., et al. (1991) · Diabetologia · doi:10.1007/bf00403293 · Cited by 69 · see citing works
Self-citationIslet cell antibodies ? Theoretical and practical implications
Lernmark, Å., & Bækkeskov, S. (1981) · Diabetologia · doi:10.1007/bf00257781 · Cited by 67 · see citing works
Self-citationLandin-Olsson, M., Karlsson, A., Dahlquist, G., Blom, L., Lernmark, Å., & Sundkvist, G. (1989) · Diabetologia · doi:10.1007/bf00277264 · Cited by 48 · see citing works
Self-citationMartino, G., Tappaz, M., Braghi, S., et al. (1991) · Journal of Autoimmunity · doi:10.1016/0896-8411(91)90054-g · Cited by 47 · see citing works
An ELISA for Antibodies to Recombinant Glutamic Acid Decarboxylase in IDDM
DeAizpurua, H. J., Harrison, L. C., & Cram, D. S. (1992) · Diabetes · doi:10.2337/diab.41.9.1182 · Cited by 40 · see citing works
Bonifacio, E. E., Dawkins, R. L., & Lernmark, Å. (1987) · Diabetologia · doi:10.1007/bf00270427 · Cited by 38 · see citing works
Self-citationIslet cell antibodies in insulin-dependent (type 1) diabetic children treated with plasmapheresis.
Marner, B., Lernmark, Å., Ludvigsson, J., et al. (1985) · PubMed · Cited by 25 · see citing works
Self-citationGlutamic acid decarboxylase in insulin‐dependent diabetes mellitus
DeAizpurua, H. J., & Harrison, L. C. (1992) · Diabetes/Metabolism Reviews · doi:10.1002/dmr.5610080205 · Cited by 23 · see citing works
Barmeier, H., Mcculloch, D., Neifing, J. L., Warnock, G., Rajotte, R., Palmer, J., & Lernmark, Å. (1991) · Diabetologia · doi:10.1007/bf00401518 · Cited by 15 · see citing works
Self-citation
Flagged first, then by citations
Cited by
Sorted by citations
Sacks, D. B., Arnold, M., Bakris, G. L., Bruns, D. E., Horvath, A. R., Kirkman, M. S., Lernmark, A., Metzger, B. E., & Nathan, D. M. (2011) · Clinical Chemistry · doi:10.1373/clinchem.2010.161596 · Cited by 1,360 · see citing works
Sacks, D. B., Arnold, M., Bakris, G. L., Bruns, D. E., Horvath, A. R., Kirkman, M. S., Lernmark, A., Metzger, B. E., & Nathan, D. M. (2011) · Diabetes Care · doi:10.2337/dc11-9998 · Cited by 718 · see citing works
Sacks, D. B., Arnold, M., Bakris, G. L., Bruns, D. E., Horvath, A. R., Lernmark, Å., Metzger, B. E., Nathan, D. M., & Kirkman, M. S. (2023) · Diabetes Care · doi:10.2337/dci23-0036 · Cited by 351 · see citing works
Self-citation(2004) · Controlled Clinical Trials · doi:10.1016/j.cct.2004.08.002 · Cited by 268 · see citing works
Orban, T., Sosenko, J. M., Cuthbertson, D., Krischer, J. P., Skyler, J. S., Jackson, R., Yu, L., Palmer, J. P., Schatz, D., Eisenbarth, G., et al. (2009) · Diabetes Care · doi:10.2337/dc09-0934 · Cited by 260 · see citing works
Genetic effects on age-dependent onset and islet cell autoantibody markers in type 1 diabetes
Graham, J., Hagopian, W. A., Kockum, I., Li, L. S., Sanjeevi, C. B., Lowe, R. M., Schaefer, J. B., Zarghami, M., Day, H. L., Landin-Olsson, M., et al. (2002) · Diabetes · doi:10.2337/diabetes.51.5.1346 · Cited by 230 · see citing works
Self-citationNorris, J. M. (1996) · JAMA · doi:10.1001/jama.1996.03540080031025 · Cited by 177 · see citing works
The World Health Organization International Collaborative Study for islet cell antibodies
Mire-Sluis, A. R., Gaines Das, R., & Lernmark, &. (2000) · Diabetologia · doi:10.1007/s001250051524 · Cited by 122 · see citing works
Self-citationRisk assessment, prediction and prevention of type 1 diabetes
Harrison, L. C. (2001) · Pediatric Diabetes · doi:10.1034/j.1399-5448.2001.002002071.x · Cited by 48 · see citing works
Immunomodulation with human recombinant autoantigens
Lernmark, Å., & Agardh, C.-D. (2005) · Trends in Immunology · doi:10.1016/j.it.2005.08.015 · Cited by 24 · see citing works
Self-citation
- Authors
- Grubin, C. E., Daniels, T., Toivola, B., Landin-Olsson, M., Hagopian, W. A., Li, L., Karlsen, A. E., Boel, E., Michelsen, B., & Lernmark, �.
- Affiliations
- University of Washington (US)
- Novo Nordisk (Denmark) (DK)
- ORCID
- Hagopian, W. A.
- Venue
- Diabetologia
- Published
- 1994-04
- Volume
- 37
- Issue
- 4
- Pages
- 344-350
- ISSN
- 0012-186X (ISSN-L)
- 1432-0428
- OpenAlex
- W2059144476
- Semantic Scholar
- 429651dedc4ce98f2c948e14db141a3bcf5abf2f
- Cited by
- 415
- References
- 41
- Citations by year
- 2026: 2 · 2025: 2 · 2024: 6 · 2023: 6 · 2022: 3 · 2021: 3 · 2020: 4 · 2019: 5 · 2018: 7 · 2017: 6 · 2016: 5 · 2015: 8 · 2014: 7 · 2013: 15 · 2012: 12
- FWCI
- 13.05
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Diabetologia (publishedVersion)
- PubMed (publishedVersion)
- Lund University Publications (Lund University) (submittedVersion)
- Funders
- National Institutes of Health (5r01dk033873-06, 5p01dk041801-05)
- Medical Research Council
- National Institute of Diabetes and Digestive and Kidney Diseases (DK41801, DK-26190, DK33873, R01DK026190)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Diabetes and associated disorders
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
- Health Sciences › Medicine › Neurology › Autoimmune Neurological Disorders and Treatments
- Keywords
- type 1 diabetes, GAD65 antibodies, glutamic acid decarboxylase, autoantibodies, radioligand binding assay, diagnostic accuracy, sensitivity and specificity, pediatric diabetes, islet cell antibodies, autoimmunity
- MeSH terms
- Adolescent, Adult, Autoantibodies, Child, Diabetes Mellitus, Type 1, False Positive Reactions, Female, Glutamate Decarboxylase, Humans, Islets of Langerhans, Isoenzymes, Male, Middle Aged, Predictive Value of Tests, Radioligand Assay, Recombinant Proteins, Sensitivity and Specificity, Autoimmunity
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review