PMID- 26815786 OWN - NLM STAT- MEDLINE DCOM- 20180112 LR - 20181113 IS - 1573-7365 (Electronic) IS - 0885-7490 (Print) IS - 0885-7490 (Linking) VI - 31 IP - 3 DP - 2016 Jun TI - Alterations in white matter volume and integrity in obesity and type 2 diabetes. PG - 621-9 LID - 10.1007/s11011-016-9792-3 [doi] AB - Type 2 diabetes mellitus (T2DM) is characterized by obesity, hyperglycemia and insulin resistance. Both T2DM and obesity are associated with cerebral complications, including an increased risk of cognitive impairment and dementia, however the underlying mechanisms are largely unknown. In the current study, we aimed to determine the relative contributions of obesity and the presence of T2DM to altered white matter structure. We used diffusion tensor imaging (DTI) and voxel-based morphometry (VBM) to measure white matter integrity and volume in obese T2DM patients without micro- or macrovascular complications, age- gender- and BMI-matched normoglycemic obese subjects and age- and gender-matched normoglycemic lean subjects. We found that obese T2DM patients compared with lean subjects had lower axial diffusivity (in the right corticospinal tract, right inferior fronto-occipital tract, right superior longitudinal fasciculus and right forceps major) and reduced white matter volume (in the right inferior parietal lobe and the left external capsule region). In normoglycemic obese compared with lean subjects axial diffusivity as well as white matter volume tended to be reduced, whereas there were no significant differences between normoglycemic obese subjects and T2DM patients. Decreased white matter integrity and volume were univariately related to higher age, being male, higher BMI, HbA1C and fasting glucose and insulin levels. However, multivariate analyses demonstrated that only BMI was independently related to white matter integrity, and age, gender and BMI to white matter volume loss. Our data indicate that obese T2DM patients have reduced white matter integrity and volume, but that this is largely explained by BMI, rather than T2DM per se. FAU - van Bloemendaal, Liselotte AU - van Bloemendaal L AD - Diabetes Center / Department of Internal Medicine, VU University Medical Center, PO BOX 7057, 1007 MB, Amsterdam, The Netherlands. l.vanbloemendaal@vumc.nl. FAU - Ijzerman, Richard G AU - Ijzerman RG AD - Diabetes Center / Department of Internal Medicine, VU University Medical Center, PO BOX 7057, 1007 MB, Amsterdam, The Netherlands. FAU - Ten Kulve, Jennifer S AU - Ten Kulve JS AD - Diabetes Center / Department of Internal Medicine, VU University Medical Center, PO BOX 7057, 1007 MB, Amsterdam, The Netherlands. FAU - Barkhof, Frederik AU - Barkhof F AD - Department of Radiology & Nuclear Medicine, VU University Medical Center, 1007 MB, Amsterdam, The Netherlands. FAU - Diamant, Michaela AU - Diamant M AD - Diabetes Center / Department of Internal Medicine, VU University Medical Center, PO BOX 7057, 1007 MB, Amsterdam, The Netherlands. FAU - Veltman, Dick J AU - Veltman DJ AD - Department of Psychiatry, VU University Medical Center, 1007 MB, Amsterdam, The Netherlands. FAU - van Duinkerken, Eelco AU - van Duinkerken E AD - Diabetes Center / Department of Internal Medicine, VU University Medical Center, PO BOX 7057, 1007 MB, Amsterdam, The Netherlands. AD - Department of Medical Psychology, VU University Medical Center, 1007 MB, Amsterdam, The Netherlands. AD - Department of Psychology, Pontificia Universidade Catolica (PUC-Rio), Rio de Janeiro, RJ, Brazil. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20160127 PL - United States TA - Metab Brain Dis JT - Metabolic brain disease JID - 8610370 SB - IM MH - Brain/*diagnostic imaging MH - Diabetes Mellitus, Type 2/*diagnostic imaging MH - Diffusion Tensor Imaging MH - Female MH - Humans MH - Image Processing, Computer-Assisted MH - Male MH - Middle Aged MH - Obesity/*diagnostic imaging MH - Organ Size MH - White Matter/*diagnostic imaging PMC - PMC4863900 OTO - NOTNLM OT - Brain OT - DTI OT - Integrity OT - Obesity OT - Type 2 diabetes OT - VBM OT - Volume OT - White matter EDAT- 2016/01/28 06:00 MHDA- 2018/01/13 06:00 PMCR- 2016/01/27 CRDT- 2016/01/28 06:00 PHST- 2015/08/27 00:00 [received] PHST- 2016/01/08 00:00 [accepted] PHST- 2016/01/28 06:00 [entrez] PHST- 2016/01/28 06:00 [pubmed] PHST- 2018/01/13 06:00 [medline] PHST- 2016/01/27 00:00 [pmc-release] AID - 10.1007/s11011-016-9792-3 [pii] AID - 9792 [pii] AID - 10.1007/s11011-016-9792-3 [doi] PST - ppublish SO - Metab Brain Dis. 2016 Jun;31(3):621-9. doi: 10.1007/s11011-016-9792-3. Epub 2016 Jan 27.