• Maarten P Rozing, Rudi G J Westendorp, Anton J M de Craen, Marijke Frölich, Moniek C M de Goeij, Bastiaan T Heijmans, Marian Beekman, Carolien A Wijsman, Simon P Mooijaart, Gerard-Jan Blauw, P Eline Slagboom, Diana van Heemst, and Leiden Longevity Study Group.
• Gerontology and Geriatrics, Leiden University Medical Center, PO Box 9600, 2300 RC, Leiden, the Netherlands.
• J Am Geriatr Soc. 2010 Mar 1; 58 (3): 564-9.

ObjectivesTo explore measures of metabolic syndrome and glucose metabolism in families with exceptional longevity.DesignCase-control study.SettingA university hospital in Leiden, the Netherlands.ParticipantsOne hundred twenty-one offspring of nonagenarian siblings, who were enriched for familial factors promoting longevity, and 113 of their partners. No subject had diabetes mellitus.MeasurementsPrevalence of metabolic syndrome was determined according to the criteria of the Third Report of the National Cholesterol Education Program. Glucose tolerance was assessed according to a 2-hour oral glucose tolerance test.ResultsThe offspring of nonagenarians siblings had a lower prevalence of metabolic syndrome (P=.03), similar body composition, lower mean fasting blood glucose levels (4.99 vs 5.16 mmol/L; P=.01), lower mean fasting insulin levels (5.81 vs 6.75 mU/L; P=.04), a higher mean homeostasis model assessment of insulin sensitivity (0.78 vs 0.65; P=.02), and a more-favorable glucose tolerance (mean area under the receiver operating characteristic curve for glucose (13.2 vs 14.3; P=.007) than their partners. No significant differences were observed between the offspring and their partners in beta-cell function (insulogenic index 13.6 vs 12.5; P=.38).ConclusionDespite similar body composition, the offspring of nonagenarian siblings showed a lower prevalence of metabolic syndrome and better glucose tolerance than their partners, centralizing the role of favorable glucose metabolism in familial longevity.

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