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Cai, N. ; Chang, S.* ; Li, Y.* ; Li, Q.* ; Hu, J.* ; Liang, J.* ; Song, L.* ; Kretzschmar, W.* ; Gan, X.* ; Nicod, J.* ; Rivera, M.* ; Deng, H.* ; Du, B.* ; Li, K.* ; Sang, W.* ; Gao, J.* ; Gao, S.* ; Ha, B.* ; Ho, H.Y.* ; Hu, C.* ; Hu, Z.* ; Huang, G.* ; Jiang, G.* ; Jiang, T.* ; Jin, W.* ; Li, G.* ; Lin, Y.T.* ; Liu, L.* ; Liu, T.* ; Liu, Y.* ; Lu, Y.* ; Lv, L.* ; Meng, H.* ; Qian, P.* ; Sang, H.* ; Shen, J.* ; Shi, J.* ; Sun, J.* ; Tao, M.* ; Wang, G.* ; Wang, J.* ; Wang, L.* ; Wang, X.* ; Yang, H.* ; Yang, L.* ; Yin, Y.* ; Zhang, J.* ; Zhang, K.* ; Sun, N.* ; Zhang, W.* ; Zhang, X.* ; Zhang, Z.* ; Zhong, H.* ; Breen, G.* ; Marchini, J.* ; Chen, Y.* ; Xu, Q.* ; Xu, X.* ; Mott, R.* ; Huang, G.J.* ; Kendler, K.* ; Flint, J.*

Molecular signatures of major depression.

Curr. Biol. 25, 1146-1156 (2015)
Publ. Version/Full Text DOI PMC
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Adversity, particularly in early life, can cause illness. Clues to the responsible mechanisms may lie with the discovery of molecular signatures of stress, some of which include alterations to an individual's somatic genome. Here, using genome sequences from 11,670 women, we observed a highly significant association between a stress-related disease, major depression, and the amount of mtDNA (p = 9.00 × 10(-42), odds ratio 1.33 [95% confidence interval [CI] = 1.29-1.37]) and telomere length (p = 2.84 × 10(-14), odds ratio 0.85 [95% CI = 0.81-0.89]). While both telomere length and mtDNA amount were associated with adverse life events, conditional regression analyses showed the molecular changes were contingent on the depressed state. We tested this hypothesis with experiments in mice, demonstrating that stress causes both molecular changes, which are partly reversible and can be elicited by the administration of corticosterone. Together, these results demonstrate that changes in the amount of mtDNA and telomere length are consequences of stress and entering a depressed state. These findings identify increased amounts of mtDNA as a molecular marker of MD and have important implications for understanding how stress causes the disease.
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Publication type Article: Journal article
Document type Scientific Article
Language english
Publication Year 2015
HGF-reported in Year 2015
ISSN (print) / ISBN 0960-9822
e-ISSN 1879-0445
Journal Current Biology
Quellenangaben Volume: 25, Issue: 9, Pages: 1146-1156 Article Number: , Supplement: ,
Publisher Elsevier
Reviewing status Peer reviewed
Institute(s) Helmholtz Pioneer Campus (HPC)
DOI 10.1016/j.cub.2015.03.008
PubMed ID 25913401
Erfassungsdatum 2019-12-09
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