Jensen K, Wilkinson B, Wines N, et al
Samples were measured using a BD LSRFortessa flow cytometer equipped with an ultra-violet (355 nm), blue (488 nm), yellow-green (561 nm), red (640 nm) and violet (605 nm) laser
The gutbrain axis involves bidirectional communication via the vagus nerve, HPA axis, and microbial metabolites, with gut enterochromaffin cells producing approximately 90% of the bodys serotonin (Yano et al., 2015)

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Tadokoro R, Bunch T, Schwabe JW, Hughes IA, Murphy JC