Base excision DNA repair levels in mitochondrial lysates of Alzheimer's disease.
Base excision DNA repair levels in mitochondrial lysates of Alzheimer's disease.
复制标题
阿尔茨海默氏病线粒体裂解物的碱基切除DNA修复水平。
DOI:
10.1016/j.neurobiolaging.2014.01.004
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发表时间:
2014-06
影响因子:
4.2
通讯作者:
Bohr VA
中科院分区:
文献类型:
--
作者:
Canugovi C;Shamanna RA;Croteau DL;Bohr VA
Alzheimer’s disease (AD) is a senile dementia with increased incidence in older subjects (age>65 years). One of the earliest markers of AD is oxidative DNA damage. Recently it has been reported that preclinical AD patient brains show elevated levels of oxidative damage in both nuclear and mitochondrial nucleic acids. Moreover, different oxidative lesions in mitochondrial DNA are between 5–10-fold higher than in nuclear DNA in both control and AD postmortem brains. We previously showed that there is a significant loss of base excision repair (BER) components in whole tissue extracts of AD and mild cognitive impairment subjects relative to matched control subjects. However, comprehensive analysis of specific steps in base excision repair levels in mitochondrial extracts of AD patient brains is not available. In this study we mainly investigated various components of BER in mitochondrial extracts of AD and matched control postmortem brain samples. We found that the 5-hydroxyuracil (5OHU) incision and ligase activities are significantly lower in AD brains whereas the uracil incision, abasic site cleavage and dNTP incorporation activities are normal in these samples.
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影响因子:
5.3
作者:
Reddy, P. Hemachandra
通讯作者:
Reddy, P. Hemachandra
DOI:
10.1073/pnas.1204156109
发表时间:
2012-09-11
影响因子:
11.1
作者:
Canugovi, Chandrika;Yoon, Jeong Seon;Bohr, Vilhelm A.
通讯作者:
Bohr, Vilhelm A.
影响因子:
4.7
作者:
Gabbita, SP;Lovell, MA;Markesbery, WR
通讯作者:
Markesbery, WR
影响因子:
14.9
作者:
Karimi-Busheri, F;Lee, J;Weinfeld, M
通讯作者:
Weinfeld, M
影响因子:
3
作者:
Coskun, Pinar;Wyrembak, Joanne;Schriner, Samual E.;Chen, Hsiao-Wen;Marciniack, Christine;LaFerla, Frank;Wallace, Douglas C.
通讯作者:
Wallace, Douglas C.