PMID- 24906975 OWN - NLM STAT- MEDLINE DCOM- 20150622 LR - 20211021 IS - 1720-8386 (Electronic) IS - 0391-4097 (Linking) VI - 37 IP - 8 DP - 2014 Aug TI - Relationship between glucose metabolism and non-alcoholic fatty liver disease severity in morbidly obese women. PG - 739-744 LID - 10.1007/s40618-014-0101-x [doi] AB - BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) is an independent predictor of type 2 diabetes mellitus (T2DM). Insulin resistance and beta-cell dysfunction are involved in the pathogenesis of T2DM. Insulin resistance is associated with NAFLD but little is known about beta-cell dysfunction and NAFLD. AIM: We tested whether NAFLD severity is associated with insulin sensitivity and beta-cell function in morbidly obese women. SUBJECTS AND METHODS: We studied 61 Caucasian women aged 18-60 years without T2DM and with a body mass index ranging from 35.3 to 48.8 kg/m(2). The insulin sensitivity index (ISI) and the disposition index (DI) from oral glucose tolerance testing were used as measures of insulin sensitivity and beta-cell function, respectively. Fat was measured by dual-energy X-ray absorptiometry. Fatty liver was diagnosed by ultrasonography and ordinally coded as 0 = none, 1 = light, 2 = moderate, 3 = severe. Proportional-odds logistic regression was used to evaluate the association of NAFLD severity with log(e)ISI and log(e)DI with and without correction for total and truncal fat. RESULTS: The odds of more severe vs. less severe NAFLD decreased for increasing log(e)ISI [odds ratio (OR) 0.40, 95 % CI 0.19-0.84, p < 0.05] and log(e)DI (OR 0.80, 95 % CI 0.69-0.92, p < 0.01). Neither total nor truncal fat had any effect on these associations. CONCLUSION: In morbidly obese women, NAFLD severity is inversely associated with insulin sensitivity and beta-cell function. The association of NAFLD severity with beta-cell dysfunction is stronger than that with insulin resistance. FAU - Bedogni, Giorgio AU - Bedogni G AD - Liver Research Center, AREA Science Park, Building Q, Strada Statale 14 km 163.5, Basovizza, 34012, Trieste, Italy. giorgiobedogni@gmail.com. AD - International Center for the Assessment of Nutritional Status (ICANS), University of Milano, Milan, Italy. giorgiobedogni@gmail.com. FAU - Gastaldelli, Amalia AU - Gastaldelli A AD - Istituto di Fisiologia Clinica, Consiglio Nazionale delle Ricerche (CNR), Pisa, Italy. FAU - Tiribelli, Claudio AU - Tiribelli C AD - Liver Research Center, AREA Science Park, Building Q, Strada Statale 14 km 163.5, Basovizza, 34012, Trieste, Italy. FAU - Agosti, Fiorenza AU - Agosti F AD - Istituto Auxologico Italiano, IRCCS, Experimental Laboratory for Auxo-Endocrinological Research, Milano, Italy. FAU - De Col, Alessandra AU - De Col A AD - Istituto Auxologico Italiano, IRCCS, Experimental Laboratory for Auxo-Endocrinological Research, Milano, Italy. FAU - Fessehatsion, Rezene AU - Fessehatsion R AD - Istituto Auxologico Italiano, IRCCS, Division of Metabolic Diseases, Verbania, Italy. FAU - Sartorio, Alessandro AU - Sartorio A AD - Istituto Auxologico Italiano, IRCCS, Experimental Laboratory for Auxo-Endocrinological Research, Milano, Italy. AD - Istituto Auxologico Italiano, IRCCS, Division of Metabolic Diseases, Verbania, Italy. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140607 PL - Italy TA - J Endocrinol Invest JT - Journal of endocrinological investigation JID - 7806594 RN - 0 (Insulin) SB - IM MH - Abdominal Fat/diagnostic imaging MH - Absorptiometry, Photon MH - Adiposity MH - Adolescent MH - Adult MH - Body Mass Index MH - Female MH - Glucose Tolerance Test MH - Humans MH - Insulin/*metabolism MH - *Insulin Resistance MH - Insulin Secretion MH - Insulin-Secreting Cells/*metabolism MH - Italy MH - Liver/diagnostic imaging MH - Logistic Models MH - Middle Aged MH - Non-alcoholic Fatty Liver Disease/diagnostic imaging/etiology/*metabolism/physiopathology MH - Obesity, Morbid/*physiopathology MH - Severity of Illness Index MH - Ultrasonography MH - Young Adult EDAT- 2014/06/08 06:00 MHDA- 2015/06/24 06:00 CRDT- 2014/06/08 06:00 PHST- 2014/03/28 00:00 [received] PHST- 2014/05/21 00:00 [accepted] PHST- 2014/06/08 06:00 [entrez] PHST- 2014/06/08 06:00 [pubmed] PHST- 2015/06/24 06:00 [medline] AID - 10.1007/s40618-014-0101-x [pii] AID - 10.1007/s40618-014-0101-x [doi] PST - ppublish SO - J Endocrinol Invest. 2014 Aug;37(8):739-744. doi: 10.1007/s40618-014-0101-x. Epub 2014 Jun 7.