Maternal outcomes related to Genetic and epigenetic Variation in the oxytocin system: A scoping review

Purpose: In this scoping review, we synthesize the literature on oxytocin and oxytocin receptor genetic and epigenetic variation in relationship to breastfeeding, maternal caregiving behavior, and maternal mental health. Methods: A literature search was conducted in early 2022, and updated in 2023,...

Full description

Bibliographic Details
Main Authors: Sarah R. Weinstein, Elise N. Erickson, Rodin Molina, Aleeca F. Bell
Format: Article
Language:English
Published: Elsevier 2023-11-01
Series:Comprehensive Psychoneuroendocrinology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666497623000437
_version_ 1797398508341297152
author Sarah R. Weinstein
Elise N. Erickson
Rodin Molina
Aleeca F. Bell
author_facet Sarah R. Weinstein
Elise N. Erickson
Rodin Molina
Aleeca F. Bell
author_sort Sarah R. Weinstein
collection DOAJ
description Purpose: In this scoping review, we synthesize the literature on oxytocin and oxytocin receptor genetic and epigenetic variation in relationship to breastfeeding, maternal caregiving behavior, and maternal mental health. Methods: A literature search was conducted in early 2022, and updated in 2023, utilizing the PRISMA scoping review reporting method, using the following MeSH headings and key terms: oxytocin, oxytocin receptor, genetics, epigenetics, methylation, pregnancy, postnatal, breastfeeding, lactation, mother-infant relations and perinatal outcomes. The search was conducted using PubMed, EMBASE, CINAHL, Google Scholar, SCOPUS, and the Cochrane Library. Inclusion criteria included: human literature which was peer reviewed and found in primary sources, printed in the English language. In addition, the study must have reported genetic/epigenetic data in either the oxytocin or oxytocin receptor gene (maternal or infant up to 12 months after birth) in relation to a breastfeeding, maternal caregiving behavior or a maternal mental health outcome. There was no date limitation. Four authors reviewed studies for eligibility. Data was extracted using a structured data extraction form. Results: A total of 23 studies met inclusion criteria for this review (breastfeeding n = 4, maternal caregiving behavior n = 7, and maternal mental health n = 16). Seventeen papers reported on oxytocin or oxytocin receptor genotype and nine reported epigenetic associations (namely DNA methylation). These totals are greater than 23, as studies reported on multiple outcomes. One paper assessed the interaction between genotype and methylation. While a number of genotype variations were reported, the single nucleotide polymorphism rs53576 on the oxytocin receptor gene was the most studied. Overall, variation in this polymorphism was related to postnatal depression symptoms. Among numerous epigenetic markers, site −934 was the most studied methylation site, and methylation status was associated with maternal depression and maternal caregiving behavior outcomes. Results suggest that early life experiences impact adult maternal caregiving behaviors and mental health outcomes, and vary based on genetic vulnerability. Breastfeeding outcomes were minimally studied. Conclusion: This scoping review found that genetic and epigenetic variation at the oxytocin and oxytocin receptor genes were associated with maternal caregiving behavior and mental health, likely through complex gene and environment interactions. The findings suggest that maternal early life experiences and stress impact later caregiving behaviors and mental health in the postnatal period. The findings highlight potential pathways by which environment, experiences, and genes interact to impact maternal caregiving behavior and maternal mental health.
first_indexed 2024-03-09T01:26:31Z
format Article
id doaj.art-904ac174539a42f7a3a1b600aab90ec2
institution Directory Open Access Journal
issn 2666-4976
language English
last_indexed 2024-03-09T01:26:31Z
publishDate 2023-11-01
publisher Elsevier
record_format Article
series Comprehensive Psychoneuroendocrinology
spelling doaj.art-904ac174539a42f7a3a1b600aab90ec22023-12-10T06:18:07ZengElsevierComprehensive Psychoneuroendocrinology2666-49762023-11-0116100209Maternal outcomes related to Genetic and epigenetic Variation in the oxytocin system: A scoping reviewSarah R. Weinstein0Elise N. Erickson1Rodin Molina2Aleeca F. Bell3University of Arizona College of Nursing, Tucson, AZ, USA; Corresponding author.University of Arizona College of Nursing, Tucson, AZ, USAFrontier Nursing University, Hyden, KY, USA; BabyMoon Inn Birth Center, Tucson, AZ, USAUniversity of Arizona College of Nursing, Tucson, AZ, USAPurpose: In this scoping review, we synthesize the literature on oxytocin and oxytocin receptor genetic and epigenetic variation in relationship to breastfeeding, maternal caregiving behavior, and maternal mental health. Methods: A literature search was conducted in early 2022, and updated in 2023, utilizing the PRISMA scoping review reporting method, using the following MeSH headings and key terms: oxytocin, oxytocin receptor, genetics, epigenetics, methylation, pregnancy, postnatal, breastfeeding, lactation, mother-infant relations and perinatal outcomes. The search was conducted using PubMed, EMBASE, CINAHL, Google Scholar, SCOPUS, and the Cochrane Library. Inclusion criteria included: human literature which was peer reviewed and found in primary sources, printed in the English language. In addition, the study must have reported genetic/epigenetic data in either the oxytocin or oxytocin receptor gene (maternal or infant up to 12 months after birth) in relation to a breastfeeding, maternal caregiving behavior or a maternal mental health outcome. There was no date limitation. Four authors reviewed studies for eligibility. Data was extracted using a structured data extraction form. Results: A total of 23 studies met inclusion criteria for this review (breastfeeding n = 4, maternal caregiving behavior n = 7, and maternal mental health n = 16). Seventeen papers reported on oxytocin or oxytocin receptor genotype and nine reported epigenetic associations (namely DNA methylation). These totals are greater than 23, as studies reported on multiple outcomes. One paper assessed the interaction between genotype and methylation. While a number of genotype variations were reported, the single nucleotide polymorphism rs53576 on the oxytocin receptor gene was the most studied. Overall, variation in this polymorphism was related to postnatal depression symptoms. Among numerous epigenetic markers, site −934 was the most studied methylation site, and methylation status was associated with maternal depression and maternal caregiving behavior outcomes. Results suggest that early life experiences impact adult maternal caregiving behaviors and mental health outcomes, and vary based on genetic vulnerability. Breastfeeding outcomes were minimally studied. Conclusion: This scoping review found that genetic and epigenetic variation at the oxytocin and oxytocin receptor genes were associated with maternal caregiving behavior and mental health, likely through complex gene and environment interactions. The findings suggest that maternal early life experiences and stress impact later caregiving behaviors and mental health in the postnatal period. The findings highlight potential pathways by which environment, experiences, and genes interact to impact maternal caregiving behavior and maternal mental health.http://www.sciencedirect.com/science/article/pii/S2666497623000437OxytocinDNA methylationGeneticsBreastfeedingMental healthMaternal behavior
spellingShingle Sarah R. Weinstein
Elise N. Erickson
Rodin Molina
Aleeca F. Bell
Maternal outcomes related to Genetic and epigenetic Variation in the oxytocin system: A scoping review
Comprehensive Psychoneuroendocrinology
Oxytocin
DNA methylation
Genetics
Breastfeeding
Mental health
Maternal behavior
title Maternal outcomes related to Genetic and epigenetic Variation in the oxytocin system: A scoping review
title_full Maternal outcomes related to Genetic and epigenetic Variation in the oxytocin system: A scoping review
title_fullStr Maternal outcomes related to Genetic and epigenetic Variation in the oxytocin system: A scoping review
title_full_unstemmed Maternal outcomes related to Genetic and epigenetic Variation in the oxytocin system: A scoping review
title_short Maternal outcomes related to Genetic and epigenetic Variation in the oxytocin system: A scoping review
title_sort maternal outcomes related to genetic and epigenetic variation in the oxytocin system a scoping review
topic Oxytocin
DNA methylation
Genetics
Breastfeeding
Mental health
Maternal behavior
url http://www.sciencedirect.com/science/article/pii/S2666497623000437
work_keys_str_mv AT sarahrweinstein maternaloutcomesrelatedtogeneticandepigeneticvariationintheoxytocinsystemascopingreview
AT elisenerickson maternaloutcomesrelatedtogeneticandepigeneticvariationintheoxytocinsystemascopingreview
AT rodinmolina maternaloutcomesrelatedtogeneticandepigeneticvariationintheoxytocinsystemascopingreview
AT aleecafbell maternaloutcomesrelatedtogeneticandepigeneticvariationintheoxytocinsystemascopingreview