DNA methylation aging signatures of multiple metals exposure and their mediation effects in metal-associated mortality : Evidence from the Dongfeng-Tongji cohort study

Copyright © 2023 Elsevier B.V. All rights reserved..

Humans were exposed to multiple metals, but the impact of metals on DNA methylation-age (DNAm-age), a well-recognized aging measure, remains inconclusive. This study included 2942 participants from the Dongfeng-Tongji cohort. We detected their plasma concentrations of 23 metals and determined their genome-wide DNA methylation using the Illumina Human-MethylationEPIC BeadChip. Five DNAm-age acceleration indexes (DAIs), including HannumAge-Accel, HorvathAge-Accel, PhenoAge-Accel, GrimAge-Accel (residual from regressing corresponding DNAm-age on chronological age) and DNAm-mortality score (DNAm-MS), were separately calculated. We found that each 1-unit increase in ln-transformed copper (Cu) was associated with a separate 1.02-, 0.83- and 0.07-unit increase in PhenoAge-Accel, GrimAge-Accel, and DNAm-MS (all FDR<0.05). Each 1-unit increase in ln-transformed nickel (Ni) was associated with a 0.34-year increase in PhenoAge-Accel, while each 1-unit increase in ln-transformed strontium (Sr) was associated with a 0.05-unit increase in DNAm-MS. The Cu, Ni and Sr showed joint positive effects on above three DAIs. PhenoAge-Accel, GrimAge-Accel, and DNAm-MS mediated a separate 6.5%, 12.3%, 6.0% of the positive association between Cu and all-cause mortality; GrimAge-Accel mediated 14.3% of the inverse association of selenium with all-cause mortality. Our findings revealed the effects of Cu, Ni, Sr and their co-exposure on accelerated aging and highlighted mediation roles of DNAm-age on metal-associated mortality.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:465

Enthalten in:

Journal of hazardous materials - 465(2024) vom: 05. Feb., Seite 133200

Sprache:

Englisch

Beteiligte Personen:

Wang, Chenming [VerfasserIn]
Zhong, Guorong [VerfasserIn]
Liu, Chenliang [VerfasserIn]
Hong, Shiru [VerfasserIn]
Guan, Xin [VerfasserIn]
Xiao, Yang [VerfasserIn]
Fu, Ming [VerfasserIn]
Zhou, Yuhan [VerfasserIn]
You, Yingqian [VerfasserIn]
Wu, Tianhao [VerfasserIn]
Zhao, Hui [VerfasserIn]
Wang, Yuxi [VerfasserIn]
Chen, Shengli [VerfasserIn]
Zhang, Yichi [VerfasserIn]
Wang, Chaolong [VerfasserIn]
Guo, Huan [VerfasserIn]

Links:

Volltext

Themen:

7OV03QG267
9007-49-2
All-cause mortality
Biological aging
DNA
DNA methylation age
Journal Article
Mediation effect
Metal exposure
Metals
Nickel
Strontium
YZS2RPE8LE

Anmerkungen:

Date Completed 08.02.2024

Date Revised 08.02.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.jhazmat.2023.133200

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM36604401X