Background: Evidence from experimental models of longevity indicates that maintenance of energy homeostasis could be indispensable for longevity across various species. In humans, it has been reported that maintenance of glucose homeostasis and vascular stability is one biomedical feature of centenarians, who have reached the maximum life-span. We hypothesized that adiponectin, a novel anti-inflammatory adipocytokine, could be a protective factor against age-related metabolic alteration and atherogeneity in centenarians.
Methods: We measured plasma adiponectin concentration in 66 female centenarians and body mass index (BMI)-matched female controls (mean age 28.3 ± 6.3 years), followed by a genetic analysis of adiponectin locus.
Results: As compared to BMI-matched female controls, female centenarians had significantly higher plasma adiponectin concentrations. In addition, high concentrations of plasma adiponectin in centenarians was associated with favorable metabolic indicators, and with lower levels of C-reactive protein and E-selectin. In contrast, genetic analysis of 10 single nucleotide polymorphism (SNP) at adiponectin locus did not show significant association between the adiponectin gene variation and longevity.
Conclusions: Our results suggested that hyperadiponectinemia in centenarians could play a role in maintenance of energy homeostasis and vascular stability, and may contribute to longevity.