@article {8794, title = {Association of mitochondrial variants and haplogroups identified by whole exome sequencing with Alzheimer{\textquoteright}s disease.}, journal = {Alzheimers Dement}, year = {2021}, month = {2021 Jun 20}, abstract = {

INTRODUCTION: Findings regarding the association between mitochondrial DNA (mtDNA) variants and Alzheimer{\textquoteright}s disease (AD) are inconsistent.

METHODS: We developed a pipeline for accurate assembly and variant calling in mitochondrial genomes embedded within whole exome sequences (WES) from 10,831 participants from the Alzheimer{\textquoteright}s Disease Sequencing Project (ADSP). Association of AD risk was evaluated with each mtDNA variant and variants located in 1158 nuclear genes related to mitochondrial function using the SCORE test. Gene-based tests were performed using SKAT-O.

RESULTS: Analysis of 4220 mtDNA variants revealed study-wide significant association of AD with a rare MT-ND4L missense variant (rs28709356; minor allele frequency =~0.002; P~=~7.3 {\texttimes} 10 ) as well as with MT-ND4L in a gene-based test (P~=~6.71 {\texttimes} 10 ). Significant association was also observed with a MT-related nuclear gene, TAMM41, in a gene-based test (P~=~2.7 {\texttimes} 10 ). The expression of TAMM41 was lower in AD cases than controls (P~=~.00046) or mild cognitive impairment cases (P~=~.03).

DISCUSSION: Significant findings in MT-ND4L and TAMM41 provide evidence for a role of mitochondria in AD.

}, issn = {1552-5279}, doi = {10.1002/alz.12396}, author = {Zhang, Xiaoling and Farrell, John J and Tong, Tong and Hu, Junming and Zhu, Congcong and Wang, Li-San and Mayeux, Richard and Haines, Jonathan L and Pericak-Vance, Margaret A and Schellenberg, Gerard D and Lunetta, Kathryn L and Farrer, Lindsay A} }