Epidemiological and clinical data show frequent associations between adverse childhood experiences (ACEs) and substance abuse susceptibility particularly in adolescents. A large body of evidences sug- gests that the possible dysregulation of neuroendocrine responses as well as neurotransmitters function induced by childhood traumatic experiences and emotional neglect could constitute one of the essen- tial biological changes implementing substance abuse vulnerability. Moreover, genotype variables and its environment interactions have been associated with an increased risk for early onset sub- stance abuse. In this paper we present several data that support the hypothesis of the involvement of hypothalamus–pituitary–adrenal (HPA) axis in mediating the combined effect of early adverse experi- ences and gene variants affecting neurotransmission. The presented data also confirm the relationship between basal plasma levels of cortisol and ACTH, on the one hand, and retrospective measures of neglect during childhood on the other hand: the higher the mother and father neglect (CECA-Q) scores are, the higher the plasma levels of the two HPA hormones are. Furthermore, such positive relationship has been proved to be particularly effective and important when associated with the “S” promoter polymorphism of the gene encoding the 5-HTT transporter, both in homozygote and heterozygote individuals

Adverse childhood experiences (ACEs), genetic polymorphisms and neurochemical correlates in experimentation with psychotropic drugs among adolescents

RAGGI, MARIA AUGUSTA;SARACINO, MARIA ADDOLORATA;
2011

Abstract

Epidemiological and clinical data show frequent associations between adverse childhood experiences (ACEs) and substance abuse susceptibility particularly in adolescents. A large body of evidences sug- gests that the possible dysregulation of neuroendocrine responses as well as neurotransmitters function induced by childhood traumatic experiences and emotional neglect could constitute one of the essen- tial biological changes implementing substance abuse vulnerability. Moreover, genotype variables and its environment interactions have been associated with an increased risk for early onset sub- stance abuse. In this paper we present several data that support the hypothesis of the involvement of hypothalamus–pituitary–adrenal (HPA) axis in mediating the combined effect of early adverse experi- ences and gene variants affecting neurotransmission. The presented data also confirm the relationship between basal plasma levels of cortisol and ACTH, on the one hand, and retrospective measures of neglect during childhood on the other hand: the higher the mother and father neglect (CECA-Q) scores are, the higher the plasma levels of the two HPA hormones are. Furthermore, such positive relationship has been proved to be particularly effective and important when associated with the “S” promoter polymorphism of the gene encoding the 5-HTT transporter, both in homozygote and heterozygote individuals
L. Somaini; C. Donnini; M. Manfredini; M.A. Raggi; M.A. Saracino; M.L. Gerra; M. Amore; C. Leonardi; G. Serpelloni; G. Gerra
File in questo prodotto:
Eventuali allegati, non sono esposti

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/108837
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? 9
  • Scopus 19
  • ???jsp.display-item.citation.isi??? 17
social impact