Telomere shortening as a stress biomarker in children and adolescents affected by natural disasters.
Miranda, D. M.; Magalhaes, S. S.; Rosa, D. V.; De Marco, L. A.; DE PAULA, J. J.; Romano-Silva, M. A.
Show abstract
Natural disasters have a substantial psychosocial impact. A known biological marker of stress is telomere shortening. In this study, we tested the change in behavior symptoms and telomere length and its shortening in two-time points for about fifteen months, in populations that suffered extreme climate events, comprising flood or drought events. As expected, we observed telomere shortening in children and adolescents after a stressful situation which was directly associated with the worsening of externalizing symptoms and post-traumatic symptoms using a reliable change index. Beyond the psychosocial impact, natural events seem to affect the biology of individuals in development. These findings can help to understand vulnerabilities related to stress impact and to point target populations whose mitigation actions should be addressed in case of a disaster.
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