PMID- 36763246 OWN - NLM STAT- MEDLINE DCOM- 20230717 LR - 20230718 IS - 1720-8386 (Electronic) IS - 0391-4097 (Print) IS - 0391-4097 (Linking) VI - 46 IP - 8 DP - 2023 Aug TI - Are glucose and insulin levels at all time points during OGTT a reliable marker of diabetes mellitus risk in pediatric obesity? PG - 1685-1694 LID - 10.1007/s40618-023-02030-6 [doi] AB - PURPOSE: Childhood overweight and obesity associated with insulin resistance and metabolic syndrome represent the new global pandemic and the main causative factors for dysglycemia, prediabetes, and Type 2 Diabetes Mellitus (T2DM). Predictors, such as HOMA-IR, HOMA-beta%, and QUICKI lack specific reference values in children. OGTT is a gold standard for glycometabolic assessment. Recently, a glycemic level higher than 155 mg/dl at + 60' after glucose ingestion has been defined as a risk factor for T2DM in obese adolescents. We aim to analyze and correlate fasting insulin-resistance markers with OGTT results in overweight/obese children and adolescents. METHODS: We retrospectively evaluated glucose and insulin values during a 2-h OGTT every 30 min in 236 overweight/obese patients. Glucose values and insulin sum during OGTT were compared to glycometabolic indexes and different cut-off values for insulin sum. RESULTS: A 1-h glucose > 155 mg/dl and insulin sum > 535 microU/ml at all times during OGTT are the best predictors of diabetes risk in obese youths. A1-h glucose > 155 mg/dl is significantly associated with HbA1c > 5.7%, while no association was observed between HbA1c > 5.7% and glucose levels at baseline and 2 h. The ability of the standardized HOMA-IR to predict the prediabetes status is clearly lower than the total insulin sum at OGTT. CONCLUSION: Our study demonstrates that also 1-h post-OGTT glucose, together with HbA1c, is an effective diabetes predictor. CI - (c) 2023. The Author(s). FAU - La Valle, A AU - La Valle A AD - Pediatric Clinic and Endocrinology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy. FAU - d'Annunzio, G AU - d'Annunzio G AUID- ORCID: 0000-0002-1856-2277 AD - Pediatric Clinic and Endocrinology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy. FAU - Campanello, C AU - Campanello C AD - Pediatric Clinic and Endocrinology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy. FAU - Tantari, G AU - Tantari G AD - Pediatric Clinic and Endocrinology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy. FAU - Pistorio, A AU - Pistorio A AUID- ORCID: 0000-0002-6895-8720 AD - Epidemiology and Biostatistics Department, IRCCS Istituto Giannina Gaslini, Genoa, Italy. FAU - Napoli, F AU - Napoli F AUID- ORCID: 0000-0003-3567-6118 AD - Pediatric Clinic and Endocrinology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy. FAU - Patti, G AU - Patti G AUID- ORCID: 0000-0002-6217-1919 AD - Pediatric Clinic and Endocrinology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy. AD - Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, Genoa, Italy. FAU - Crocco, M AU - Crocco M AUID- ORCID: 0000-0001-7277-4767 AD - Gastroenterology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy. FAU - Bassi, M AU - Bassi M AUID- ORCID: 0000-0002-9166-1079 AD - Pediatric Clinic and Endocrinology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy. AD - Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, Genoa, Italy. FAU - Minuto, N AU - Minuto N AUID- ORCID: 0000-0002-5280-6319 AD - Pediatric Clinic and Endocrinology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy. FAU - Piccolo, G AU - Piccolo G AUID- ORCID: 0000-0003-2815-6288 AD - Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, Genoa, Italy. gianlucapiccolo@gaslini.org. AD - Neurooncology Unit, IRCCS Istituto Giannina Gaslini, Via G. Gaslini 5, 16147, Genoa, Italy. gianlucapiccolo@gaslini.org. FAU - Maghnie, M AU - Maghnie M AUID- ORCID: 0000-0002-7183-5238 AD - Pediatric Clinic and Endocrinology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy. AD - Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, Genoa, Italy. LA - eng PT - Journal Article DEP - 20230210 PL - Italy TA - J Endocrinol Invest JT - Journal of endocrinological investigation JID - 7806594 RN - IY9XDZ35W2 (Glucose) RN - 0 (Glycated Hemoglobin) RN - 0 (Insulin) RN - 0 (Blood Glucose) SB - IM MH - Adolescent MH - Humans MH - Child MH - Glucose/metabolism MH - *Pediatric Obesity/complications/diagnosis MH - Glucose Tolerance Test MH - *Prediabetic State/diagnosis MH - *Diabetes Mellitus, Type 2/diagnosis MH - Glycated Hemoglobin MH - Overweight MH - Retrospective Studies MH - *Insulin Resistance MH - Insulin MH - Blood Glucose/metabolism PMC - PMC10349010 OTO - NOTNLM OT - HOMA-IR OT - Insulin resistance OT - OGTT OT - Pediatric obesity OT - Type 2 diabetes mellitus COIS- The authors have no relevant financial or non-financial interests to disclose. EDAT- 2023/02/11 06:00 MHDA- 2023/07/17 06:42 PMCR- 2023/02/10 CRDT- 2023/02/10 11:20 PHST- 2022/10/01 00:00 [received] PHST- 2023/02/01 00:00 [accepted] PHST- 2023/07/17 06:42 [medline] PHST- 2023/02/11 06:00 [pubmed] PHST- 2023/02/10 11:20 [entrez] PHST- 2023/02/10 00:00 [pmc-release] AID - 10.1007/s40618-023-02030-6 [pii] AID - 2030 [pii] AID - 10.1007/s40618-023-02030-6 [doi] PST - ppublish SO - J Endocrinol Invest. 2023 Aug;46(8):1685-1694. doi: 10.1007/s40618-023-02030-6. Epub 2023 Feb 10.