Cited by 52Effects and risks of endocrine disrupting chemicalsPharmacological Effects and Toxicity StudiesSexual Differentiation and Disorders

Perinatal Exposure to Low-Dose Bisphenol A Impairs Spatial Learning and Memory in Male Rats

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Kuwahara, Rika, Kawaguchi, Shinichiro, Kohara, Yumi, Cui, Haiming, Yamashita, Kimihiro·2013·Journal of Pharmacological Sciences

Abstract

Bisphenol A (BPA) is an estrogenic endocrine disruptor used for producing polycarbonate plastics and epoxy resins. This study investigated the effects of perinatal BPA exposure on learning and memory, general activity, and emotionality in male Sprague Dawley rats using a battery of behavioral tests, including an appetite-motivated maze test (MAZE test) used to assess spatial learning and memory. Mother rats were orally administered BPA (50 or 500 μg∙kg(-1)/day) or vehicle (1 ml∙kg(-1)/day) from gestational day 10 to postnatal day 14. In the MAZE test, compared to the offspring of vehicle-treated rat mothers, male offspring of mothers exposed to 50 μg∙kg(-1)/day of BPA, but not those of mothers exposed to 500 μg∙kg(-1)/day of BPA, needed significantly more time to reach the reward. Although male offspring of mothers exposed to 50 μg∙kg(-1)/day of BPA showed an increase in a behavioral measure of wariness after repeated testing in the open-field test, no significant effects were observed in locomotor activities. No significant differences were observed in any other behavioral test including the elevated plus-maze test. The present study suggests that perinatal exposure to low-dose BPA specifically and non-monotonically impairs spatial learning and memory in male offspring rats.

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Authors
Kuwahara, R., Kawaguchi, S., Kohara, Y., Cui, H., & Yamashita, K.
Affiliations
Nagasaki University (JP)
Venue
Journal of Pharmacological Sciences
Published
2013
Volume
123
Issue
2
Pages
132-139
ISSN
  • 1347-8613 (ISSN-L)
  • 1347-8648
OpenAlex
W2090939668
Cited by
52
References
37
Citations by year
2026: 1 · 2025: 1 · 2024: 1 · 2023: 4 · 2022: 2 · 2021: 3 · 2020: 6 · 2019: 5 · 2018: 7 · 2017: 2 · 2016: 6 · 2015: 7 · 2014: 6 · 2013: 1
FWCI
4.89
Type
journal article
Language
en
Open access
Locations
  • Journal of Pharmacological Sciences (publishedVersion)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • Institutional Repositories DataBase (IRDB) (submittedVersion)
  • Nagasaki University's Academic Output SITE (Nagasaki University) (submittedVersion, cc-by-nc-nd)
Funders
Ministry of Education, Culture, Sports, Science and Technology (22510069)
Topics
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Effects and risks of endocrine disrupting chemicals
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Pharmacological Effects and Toxicity Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Sexual Differentiation and Disorders
Keywords
bisphenol A, perinatal exposure, endocrine disruptors, spatial learning and memory, male offspring, locomotor activity, non-monotonic dose-response, developmental neurotoxicity
MeSH terms
Bisphenol A Compounds, Animals, Behavior, Animal, Benzhydryl Compounds, Dose-Response Relationship, Drug, Emotions, Female, Male, Maternal-Fetal Exchange, Memory, Memory Disorders, Phenols, Pregnancy, Prenatal Exposure Delayed Effects, Rats, Sprague-Dawley, Maze Learning, Maternal Exposure, Rats, Endocrine Disruptors

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