PMID- 34487089 OWN - NLM STAT- MEDLINE DCOM- 20210920 LR - 20211009 IS - 2531-6745 (Electronic) IS - 0392-4203 (Print) IS - 0392-4203 (Linking) VI - 92 IP - 4 DP - 2021 Sep 2 TI - A study of isolated hyperglycemia (blood glucose >/=155 mg/dL) at 1-hour of oral glucose tolerance test (OGTT) in patients with beta-transfusion dependent thalassemia (beta-TDT) followed for 12 years. PG - e2021322 LID - 10.23750/abm.v92i4.11105 [doi] LID - e2021322 AB - OBJECTIVE: Subjects with normal glucose tolerance (NGT) but 1-hour post-load plasma glucose (1-h OGTT) >/= 155 mg/dl (8.6 mmol/L; H-NGT) have an increased risk for developing Type 2 diabetes mellitus (T2DM), determining a new risk factor category with deeper metabolic impairment. The aim of this study was to evaluate the H-NGT as a diagnostic predictor of future dysglycemia in beta-transfusion dependent thalassemia (beta-TDT). Indices of insulin secretion and insulin sensitivity derived at baseline from OGTTs, were also reviewed. STUDY DESIGN AND METHODS: OGTT and indices of insulin secretion and insulin sensitivity, derived at baseline during OGTT, in 17 beta-TDT with H-NGT and 29 beta-TDT with normal OGTT (NGT) and without H-NGT followed for 12 years were studied. RESULTS: H-NGT was associated with decreased insulin sensitivity and progressive deterioration of glucose tolerance. At baseline, serum ferritin and serum alanine aminotransferase (ALT) levels were higher in patients with H-NGT compared to patients with NGT. A strong correlation was observed between ALT and 1-hour plasma glucose value during OGTT in the total group of 36 patients . Compliance to iron chelation therapy was poor in beta-TDT patients with H-NGT. An inverse correlation was found between 1-hour plasma glucose value during OGTT and insulin secretion-sensitivity index-2 (ISSI-2) (r: -0.3298; p: 0.025), between ISSI-2 and ALT (r: -0.3262; p: 0.027), and between 1-hour plasma glucose value and ISSI-2 (r: -0.537; p: 0.005) in the whole group of beta-TDT patients enrolled in our study. CONCLUSIONS: This retrospective study displayed that finding an isolated high 1-hour post-load glucose level (>/=155 mg/dL; H-NGT) during the OGTT may serve as a simple biomarker to detect high-risk patients, with chronic liver disease and/or iron overload, who need periodic glycemic surveillance. Measuring the ISSI 2 represented another valuable predictive marker in the assessment of glycemia in these patients. FAU - De Sanctis, Vincenzo AU - De Sanctis V AD - Quisisana Hospital, Ferrara. vdesanctis@libero.it. FAU - Soliman, Ashraf AU - Soliman A AD - Department of Pediatrics, Division of Endocrinology, Hamad General Hospital, Doha, Qatar and Department of Pediatrics, Division of Endocrinology, Alexandria University Children's Hospital, Alexandria, Egypt. atsoliman56@gmail.com. FAU - Tzoulis, Ploutarchos AU - Tzoulis P AD - Department of Diabetes & Endocrinology, Whittington Hospital, University College London, London, UK. ptzoulis@yahoo.co.uk. FAU - Daar, Shahina AU - Daar S AD - Department of Haematology, College of Medicine and Health Sciences, Sultan Qaboos University, Sultanate of Oman. sf.daar@gmail.com. FAU - Pozzobon, Gabriella Cinzia AU - Pozzobon GC AD - IRCCS, San Raffaele Scientific Institute, Milan, Italy. vdesanctis@libero.it. FAU - Kattamis, Christos AU - Kattamis C AD - First Department of Paediatrics, National Kapodistrian University of Athens, Greece.. christos.kattamis@gmail.com. LA - eng PT - Journal Article DEP - 20210902 PL - Italy TA - Acta Biomed JT - Acta bio-medica : Atenei Parmensis JID - 101295064 RN - 0 (Blood Glucose) SB - IM MH - Blood Glucose MH - *Diabetes Mellitus, Type 2/diagnosis MH - Glucose Tolerance Test MH - Humans MH - *Hyperglycemia MH - *Insulin Resistance MH - Retrospective Studies MH - *beta-Thalassemia/complications PMC - PMC8477110 COIS- Each author declares that he or she has no commercial associations (e.g. consultancies, stock ownership, equity interest, patent/licensing arrangement etc.) that might pose a conflict of interest in connection with the submitted article. EDAT- 2021/09/07 06:00 MHDA- 2021/09/21 06:00 PMCR- 2021/01/01 CRDT- 2021/09/06 12:16 PHST- 2020/12/10 00:00 [received] PHST- 2020/12/11 00:00 [accepted] PHST- 2021/09/06 12:16 [entrez] PHST- 2021/09/07 06:00 [pubmed] PHST- 2021/09/21 06:00 [medline] PHST- 2021/01/01 00:00 [pmc-release] AID - ACTA-92-322 [pii] AID - 10.23750/abm.v92i4.11105 [doi] PST - epublish SO - Acta Biomed. 2021 Sep 2;92(4):e2021322. doi: 10.23750/abm.v92i4.11105.