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Neuropeptides are signaling molecules originating in the neuroendocrine system that can act as neurotransmitters and hormones in many biochemical processes. Their exact function is difficult to know. Mass spectrometry analyses can be used to profile neuropeptide expression changes to understand their roles in many biological problems, such as neurodegenerative disorders and metabolic function.

Read the article: Developing mass spectrometry for the quantitative analysis of neuropeptides.