共 29 条
Shorter telomere length is linked to brain atrophy and white matter hyperintensities
被引:32
作者:
Wikgren, Mikael
[1
]
Karlsson, Thomas
[2
]
Soderlund, Hedvig
[3
]
Nordin, Annelie
[1
]
Roos, Goran
[4
]
Nilsson, Lars-Goran
[5
]
Adolfsson, Rolf
[1
]
Norrback, Karl-Fredrik
[1
]
机构:
[1] Umea Univ, Dept Clin Sci, Div Psychiat, S-90187 Umea, Sweden
[2] Linkoping Univ, Disabil Res Div, Dept Behav Sci & Learning, Linkoping, Sweden
[3] Uppsala Univ, Dept Psychol, Uppsala, Sweden
[4] Umea Univ, Div Pathol, Dept Med Biosci, S-90187 Umea, Sweden
[5] Stockholm Univ, Dept Psychol, S-10691 Stockholm, Sweden
基金:
瑞典研究理事会;
关键词:
brain atrophy;
older people;
telomere length;
white matter hyperintensities;
OXIDATIVE STRESS;
CEREBRAL ATROPHY;
BLOOD-PRESSURE;
OLDEST-OLD;
MORTALITY;
DEMENTIA;
DISEASE;
COGNITION;
LESIONS;
MEMORY;
D O I:
10.1093/ageing/aft172
中图分类号:
R592 [老年病学];
C [社会科学总论];
学科分类号:
03 ;
0303 ;
100203 ;
摘要:
Background: leukocyte telomere length (TL) is considered a marker of biological aging. Several studies have investigated the link between leukocyte TL and aging-associated functional attributes of the brain, but no prior study has investigated whether TL can be linked to brain atrophy and white matter hyperintensities (WMHs); two prominent structural manifestations of brain aging. Methods: we investigated whether leukocyte TL was related to brain atrophy and WMHs in a sample of 102 non-demented individuals aged 64-75 years. Results: shorter TL was related to greater degree of subcortical atrophy (beta = -0.217, P = 0.034), but not to cortical atrophy. Furthermore, TL was 371 bp shorter (P = 0.041) in participants exhibiting subcortical WMHs, and 552 bp shorter (P = 0.009) in older participants exhibiting periventricular WMHs. Conclusion: this study provides the first evidence of leukocyte TL being associated with cerebral subcortical atrophy and WMHs, lending further support to the concept of TL as a marker of biological aging, and in particular that of the aging brain.
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页码:212 / 217
页数:7
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