Cited by 161Stress Responses and CortisolNeurotransmitter Receptor Influence on BehaviorNeuroendocrine regulation and behavior

Serotonin transporter gene variation, infant abuse, and responsiveness to stress in rhesus macaque mothers and infants

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McCormack, K., Newman, T.K., Higley, J.D., Maestripieri, D., Sanchez, M.M.·2009·Hormones and Behavior

Abstract

A functional polymorphism in the promoter region of the serotonin transporter (5-HTTLPR) gene has been associated with variation in anxiety and hypothalamus-pituitary-adrenal (HPA) axis function in humans and rhesus macaques. Individuals carrying the short allele are at a higher risk for developmental psychopathology, and this risk is magnified in short allele carriers who have experienced early life stress. This study investigated the relationship between 5-HTTLPR allelic variation, infant abuse, and behavioral and hormonal responses to stress in rhesus macaques. Subjects were 10 abusive mothers and their infants, and 10 nonabusive mother-infant pairs. Mothers and infants were genotyped for the rh5-HTTLPR, and studied in the first 6 months of infant life. For mothers and infants, we measured social group behavior, behavioral responses to handling procedures, and plasma concentrations of ACTH and cortisol under basal conditions and in response to stress tests. The proportion of individuals carrying the short rh5-HTTLPR allele was significantly higher among abusive mothers than controls. Among mothers and infants, the short allele was associated with higher basal cortisol levels and greater hormonal stress responses in the infants. In addition, infants who carried the short rh5-HTTLPR allele had higher anxiety scores than infants homozygous for the long allele. The rh5-HTTLPR genotype also interacted with early adverse experience to impact HPA axis function in the infants. These results are consistent with those of previous studies which demonstrate associations between serotonergic activity and anxiety and stress reactivity, and add additional evidence suggesting that genetic variation in serotonergic function may contribute to the occurrence of abusive parenting in rhesus macaques and modulate emotional behavior and HPA axis function.

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Crossref · 10.1016/j.yhbeh.2009.01.009

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Authors
McCormack, K., Newman, T. K., Higley, J. D., Maestripieri, D., & Sanchez, M. M.
Affiliations
  • Spelman College (US)
  • University of Cape Town (ZA)
  • Brigham Young University (US)
Corresponding author
McCormack, K.
Venue
Hormones and Behavior
Publisher
Elsevier BV
Published
2009-04
Volume
55
Issue
4
Pages
538-547
ISSN
0018-506X (ISSN-L)
OpenAlex
W2068680756
Cited by
161
References
73
Citations by year
2026: 4 · 2025: 5 · 2024: 6 · 2023: 4 · 2022: 7 · 2021: 2 · 2020: 21 · 2019: 8 · 2018: 10 · 2017: 5 · 2016: 11 · 2015: 7 · 2014: 9 · 2013: 11 · 2012: 17
FWCI
6.36
Type
journal article
Language
en
Open access
Locations
  • Hormones and Behavior (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Institute of Mental Health (MH62577, MH65046, P50MH058922, MH58922, MH63097, K02MH063097, R01MH062577, MH065046, R21MH065046)
  • National Institute of General Medical Sciences (K12-GM 00680, K12GM000680)
  • National Center for Research Resources (RR-00 165, P51RR000165)
  • National Institute on Minority Health and Health Disparities (P20MD000215, MD000215)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
Keywords
serotonin transporter gene, 5-HTTLPR, infant abuse, abusive parenting, rhesus monkeys, hypothalamic-pituitary-adrenal axis, cortisol, ACTH, stress reactivity, anxiety, early life stress, gene-environment interaction
MeSH terms
Adrenocorticotropic Hormone, Aging, Animals, Anxiety, Female, Hormones, Hydrocortisone, Hypothalamo-Hypophyseal System, Macaca mulatta, Maternal Behavior, Maternal Deprivation, Mothers, Pituitary-Adrenal System, Social Behavior, Stress, Psychological, Time Factors, Genetic Variation, Sequence Analysis, DNA, Serotonin Plasma Membrane Transport Proteins

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