In this task, you are given a sentence. You are expected to recognize the name of any form of chemical substances. Although there might be several correct answers, you need to write one of them.

[Q]: Neuroprotective and anti-inflammatory properties of a coffee component in the MPTP model of Parkinson's disease.
[A]: MPTP


[Q]: Reinforcement enhancing effects of nicotine via smoking.
[A]: nicotine


[Q]: Antidepressants suppress production of the Th1 cytokine interferon-gamma, independent of monoamine transporter blockade.
[A]:
monoamine