Objective:To investigate the effects of bisphenol F(BPF)on the tryptophan(TRP)and tyrosine(TYR)- derived neurotransmitter metabolism in the liver,elucidating the metabolic characteristics of the neurotransmitter disturbance elicited by BPF. Methods:The SPF C57BL/6J mice were administrated with different concentrations of BPF[40,400,4 000 μg/(kg·d)]by gavage for 30 consecutive days,and the ultra -high -performance liquid chromatography -tandem mass spectrometry(UHPLC -MS/MS)assay was used to examine the characteristics and levels of TRP and TYR - derived neurotransmitters in the mouse livers after BPF exposure. Results:The levels of TRP and TYR in mouse livers were significantly decreased after BPF exposure ,and 5-hydroxytryptamine (5 - HT)was significantly decreased,while kynurine(KYN),another key metabolite of the TRP metabolic pathway,significantly increased. For the TYR metabolism,TYR and its metabolite dopamine(DA)obviously decreased;meanwhile,other excitatory neurotransmitters,such as glutamate(GLU),γ - aminobutyric acid(GABA),aspartic acid(ASP)and glycine(GLY),dramatically decreased. Conclusion:BPF exposure can decrease the levels of TRP,TYR and several other excitatory neurotransmitters,and promote the metabolic transformation of 5-HT into KYN in the TRP pathway. Therefore,the current study on the metabolism of hepatic neurotransmitters provides novel evidence for the liver and neuropsychiatric diseases caused by continuous exposure to BPF.