jetonin
Jetonin is a term used in some theoretical discussions to denote a hypothetical endogenous molecule proposed to function as a neuromodulator or neurotransmitter. There is no established chemical identity, and jetonin is not recognized as a verified compound in major biochemical databases.
Descriptions of jetonin vary; some sources treat it as a small organic molecule, others as a peptide.
In usage, jetonin is often cited as a placeholder in hypothetical models of rapid synaptic signaling, arousal,
Because there is no robust evidence supporting its existence, jetonin should be described as a speculative