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<jats:title>OBJECTIVE<\/jats:title>\n                  <jats:p>To investigate the association between diabetes and brain or hippocampal atrophy in an elderly population.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>RESEARCH DESIGN AND METHODS<\/jats:title>\n                  <jats:p>A total of 1,238 community-dwelling Japanese subjects aged \u226565 years underwent brain MRI scans and a comprehensive health examination in 2012. Total brain volume (TBV), intracranial volume (ICV), and hippocampal volume (HV) were measured using MRI scans for each subject. We examined the associations between diabetes-related parameters and the ratios of TBV to ICV (an indicator of global brain atrophy), HV to ICV (an indicator of hippocampal atrophy), and HV to TBV (an indicator of hippocampal atrophy beyond global brain atrophy) after adjustment for other potential confounders.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>RESULTS<\/jats:title>\n                  <jats:p>The multivariable-adjusted mean values of the TBV-to-ICV, HV-to-ICV, and HV-to-TBV ratios were significantly lower in the subjects with diabetes compared with those without diabetes (77.6% vs. 78.2% for the TBV-to-ICV ratio, 0.513% vs. 0.529% for the HV-to-ICV ratio, and 0.660% vs. 0.676% for the HV-to-TBV ratio; all P &amp;lt; 0.01). These three ratios decreased significantly with elevated 2-h postload glucose (PG) levels (all P for trend &amp;lt;0.05) but not fasting plasma glucose levels. Longer duration of diabetes was significantly associated with lower TBV-to-ICV, HV-to-ICV, and HV-to-TBV ratios. The subjects with diabetes diagnosed in midlife had significantly lower HV-to-ICV and HV-to-TBV ratios than those without and those diagnosed in late life.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>CONCLUSIONS<\/jats:title>\n                  <jats:p>Our data suggest that a longer duration of diabetes and elevated 2-h PG levels, a marker of postprandial hyperglycemia, are risk factors for brain atrophy, particularly hippocampal atrophy.<\/jats:p>\n               <\/jats:sec>","DOI":"10.2337\/dc15-2800","type":"journal-article","created":{"date-parts":[[2016,7,7]],"date-time":"2016-07-07T01:30:49Z","timestamp":1467855049000},"page":"1543-1549","update-policy":"https:\/\/doi.org\/10.2337\/ada-journal-policies","source":"Crossref","is-referenced-by-count":85,"title":["Association Between Diabetes and Hippocampal Atrophy in Elderly Japanese: The Hisayama Study"],"prefix":"10.2337","volume":"39","author":[{"given":"Naoki","family":"Hirabayashi","sequence":"first","affiliation":[{"name":"Department of Environmental Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan"},{"name":"Department of Psychosomatic Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jun","family":"Hata","sequence":"additional","affiliation":[{"name":"Department of Environmental Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan"},{"name":"Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan"},{"name":"Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomoyuki","family":"Ohara","sequence":"additional","affiliation":[{"name":"Department of Environmental Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan"},{"name":"Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Naoko","family":"Mukai","sequence":"additional","affiliation":[{"name":"Department of Environmental Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan"},{"name":"Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan"},{"name":"Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masaharu","family":"Nagata","sequence":"additional","affiliation":[{"name":"Department of Environmental Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan"},{"name":"Department of Medicine and Clinical Science, 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