Social and Cognitive Impairments in Rat Offspring after Ultrasound-Induced Prenatal Stress

Bull Exp Biol Med. 2020 Apr;168(6):730-733. doi: 10.1007/s10517-020-04790-0. Epub 2020 Apr 25.

Abstract

We studied the possibility of developing an autism model based on chronic prenatal psychological stress caused by variable frequency ultrasound 20-45 kHz. The offspring of female rats stressed during pregnancy demonstrated reduced time of social contacts in the social interaction test, increased anxiety in the open-field test, and memory impairment in the Morris water maze test in comparison with the control (intact) rat offspring. We also found a reducing trend in the BDNF gene expression in the amygdala in males of the experimental group. The results showed the possibility of developing the animal autism model based on prenatal stress.

Keywords: autism model; autism spectrum disorder; prenatal stress; rat offspring; ultrasound effect.

MeSH terms

  • Amygdala / metabolism
  • Amygdala / physiopathology
  • Animals
  • Animals, Newborn
  • Anxiety / etiology
  • Anxiety / genetics
  • Anxiety / metabolism
  • Anxiety / physiopathology*
  • Autistic Disorder / etiology
  • Autistic Disorder / genetics
  • Autistic Disorder / metabolism
  • Autistic Disorder / physiopathology
  • Brain-Derived Neurotrophic Factor / genetics
  • Brain-Derived Neurotrophic Factor / metabolism
  • Cognitive Dysfunction / etiology
  • Cognitive Dysfunction / genetics
  • Cognitive Dysfunction / metabolism
  • Cognitive Dysfunction / physiopathology*
  • Disease Models, Animal
  • Female
  • Gene Expression
  • Male
  • Maze Learning
  • Memory Disorders / etiology
  • Memory Disorders / genetics
  • Memory Disorders / metabolism
  • Memory Disorders / physiopathology*
  • Pregnancy
  • Prenatal Exposure Delayed Effects / etiology
  • Prenatal Exposure Delayed Effects / genetics
  • Prenatal Exposure Delayed Effects / metabolism
  • Prenatal Exposure Delayed Effects / physiopathology*
  • Rats
  • Rats, Sprague-Dawley
  • Sex Factors
  • Social Interaction
  • Stress, Psychological / etiology
  • Stress, Psychological / genetics
  • Stress, Psychological / metabolism
  • Stress, Psychological / physiopathology*
  • Ultrasonic Waves / adverse effects*

Substances

  • Bdnf protein, rat
  • Brain-Derived Neurotrophic Factor