Abstract Title:

Antenatal exposure to the selective serotonin reuptake inhibitor fluoxetine leads to postnatal metabolic and endocrine changes associated with type 2 diabetes in Wistar rats.

Abstract Source:

Toxicol Appl Pharmacol. 2015 May 15 ;285(1):32-40. Epub 2015 Mar 12. PMID: 25771129

Abstract Author(s):

Nicole E De Long, Eric J Barry, Christopher Pinelli, Geoffrey A Wood, Daniel B Hardy, Katherine M Morrison, Valerie H Taylor, Hertzel C Gerstein, Alison C Holloway

Article Affiliation:

Nicole E De Long


HYPOTHESIS: 10-15% of women take antidepressant medications during pregnancy. A recent clinical study reported that the use of selective serotonin reuptake inhibitor antidepressants during pregnancy is linked with an increased risk of postnatal obesity. While obesity is often associated with fatty liver, dyslipidemia and inflammation, to date, the effects of perinatal exposure to SSRIs on these outcomes are unknown.

METHODS: Female nulliparous Wistar rats were given vehicle (N=15) or fluoxetine hydrochloride (FLX 10mg/kg/d; N=15) orally for 2 weeks prior to mating until weaning. We assessed glucometabolic changes and hepatic pathophysiology in the offspring.

RESULTS: Fluoxetine exposed offspring demonstrated altered glucose homeostasis without any alterations to beta cell mass. FLX-exposed offspring had a significant increase in the number of offspring with mild to moderate NASH and dyslipidemia. There was also increased inflammation of the liver in FLX-exposed offspring; males had significant elevations in TNFα, IL6 and monocyte chemoattractant protein 1 (MCP1), while female offspring had higher expression of TNFα, and increased macrophage infiltration (MCP1).

LIMITATIONS: This is an animal study. Further research examining the metabolic outcomes of children exposed to antidepressants in utero are required, given the increase in childhood obesity and psychiatric medication use during pregnancy.

CONCLUSION: These data demonstrate that fetal and neonatal exposure to FLX results in evidence of increased adiposity, fatty liver and abnormal glycemic control. Since these are all hallmarks of the metabolic syndrome, this raises concerns regarding the long term metabolic sequelae of fetal exposure to SSRIs in human populations.

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