Peripartum Depression Symptom Trajectories, Telomere Length and Genotype, and Adverse Childhood Experiences

Overview

Journal BMC Psychiatry

Publisher Biomed Central

Specialty Psychiatry

Date 2024 Oct 8

PMID 39379870

Authors

Maria Vrettou

Susanne Lager

Simone Toffoletto

Stavros I Iliadis

Theodora Kunovac Kallak

Sara Agnafors

Vanessa Nieratschker

Alkistis Skalkidou

Erika Comasco

Affiliations

Soon will be listed here.

Abstract

Background: As a biological marker for cellular senescence, telomere length (TL) has been linked to a variety of psychiatric disorders and adverse childhood experiences (ACE), though only preliminarily to peripartum depression (PPD). The present study sought to examine the association between TL and PPD, assessing the moderating role of ACE and genetic polymorphic variations related with the telomere machinery.

Methods: Adversity was self-reported, likewise were depressive symptoms evaluated at pregnancy week 17 and 32, as well as six-weeks and six-months postpartum. TL was assessed by use of qPCR in blood samples collected during delivery from females with antenatal depression resolving postpartum, females with depression persisting to postpartum, and healthy controls. Twenty haplotype-tagging Single Nucleotide Polymorphisms in the Telomerase Reverse Transcriptase (TERT) and three in the Telomerase RNA Component (TERC) genes were genotyped.

Results: TL was negatively correlated with severity of PPD symptoms at pregnancy week 32 and postpartum week 6. PPD was associated with shorter TL. Lastly, ACE, but not the TERT/TERC genotype, moderated the TL-trajectory association; with increasing ACE, individuals with persistent PPD symptoms had shorter TL, whereas the opposite pattern (longer TL) was observed in the controls.

Conclusions: The findings contribute to further understanding of PPD underpinnings, suggesting a negative relationship with TL.

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