Abstract：
:The development of medical interventions for the preservation of disease-free longevity would be facilitated by markers that predict healthy aging. Altered protein N-glycosylation patterns have been found with increasing age and several disease states. Here we investigate whether glycans derived from the total glycoprotein pool in plasma mark familial longevity and distinguish healthy from unhealthy aging. Total plasma N-glycan profiles of 2396 middle aged participants in the Leiden Longevity Study (LLS) were obtained by glycan release, labeling, and subsequent HPLC analysis with fluorescence detection. After normalization and batch correction, several regression strategies were applied to evaluate associations between glycan patterns, familial longevity, and healthy aging. Two N-glycan features (LC-7 and LC-8) were identified to be more abundant in plasma of the offspring of long-lived individuals as compared to controls. These results were not confounded by the altered lipid status or glucose homeostasis of the offspring. Furthermore, a decrease in levels of LC-8 was associated with the occurrence of myocardial infarction (p = 0.049, coefficient = -0.065), indicating that plasma glycosylation patterns do not only mark familial longevity but may also reflect healthy aging. In conclusion, we describe two glycan features, of which increased levels mark familial longevity and decreased levels of one of these features mark the presence of cardiovascular disease.
journal_name
J Proteome Resjournal_title
Journal of proteome researchauthors
Ruhaak LR,Uh HW,Beekman M,Hokke CH,Westendorp RG,Houwing-Duistermaat J,Wuhrer M,Deelder AM,Slagboom PEdoi
10.1021/pr1009959subject
Has Abstractpub_date
2011-04-01 00:00:00pages
1667-74issue
4eissn
1535-3893issn
1535-3907journal_volume
10pub_type
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