Journal
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
Volume 208, Issue -, Pages -Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ecoenv.2020.111570
Keywords
Novel brominated flame retardants (NBFRs); Neurotoxicity; Nervous system; Thyroid/sex hormones
Categories
Funding
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China [ESK202004]
- Natural Science Foundation of Heilongjiang Province, China [LH2020D010]
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The neurotoxic effects of novel brominated flame retardants (NBFRs) are mainly manifested in direct neurotoxicity and disruption of the neuroendocrine system, affecting neurobehavior and reproductive development. The mechanism is related to the complex interaction of neural and endocrine signals.
Traditional brominated flame retardants (BFRs) negatively affect the environment and human health, especially in the sensitive (developing) nervous system. Considering the physicochemical similarities between novel brominated flame retardants (NBFRs) and BFRs, more and more evidence reveals the neurotoxic effects of NBFRs. We reviewed the neuro(endocrine) toxic effects of NBFRs in vivo and in vitro and discussed their action mechanisms based on the available information. The neurotoxic potential of NBFRs has been demonstrated through direct neurotoxicity and disruption of the neuroendocrine system, with adverse effects on neurobehavioral and reproductive development. Mechanistic studies have shown that the impact of NBFRs is related to the complex interaction of neural and endocrine signals. From disrupting the gender differentiation of the brain, altering serum thyroid/sex hormone levels, gene/protein expression, and so on, to interfere with the feedback effect between different levels of the HPG/HPT axis. In this paper, the mechanism of neurotoxic effects of NBFRs is explored from a new perspective-neuro and endocrine interactions. Gaps in the toxicity data of NBFRs in the neuroendocrine system are supplemented and provide a broader dataset for a complete risk assessment.
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