Table Info

Table 1.

Neurotransmitters and their probable location

Neurotransmitters	Afferent input	SCN	Efferent output
Arginine vasopressin (AVP)		+	+
Vasoactive intestinal peptide (VIP)	+	+	+
gamma-aminobutyric acid (GABA)	+	+	+
Gastrin releasing peptide (GRP)		+
Pituitary adenylate cyclase-activating peptide (PACAP)	+
Dopamine		+
Glycine	+	+
Glutamate	+	+
Serotonin (5HT)	+
Neuropeptide Y	+
Acetylcholine		+
Cholecystokinin		+
Melatonin		+
Melanopsin	+	+
Prokineticin 2		+	+
Orexin		+
Pigment dispersing factor (PDF)		+
Nitric oxide (NO)		+
Histamine		+
Neurotensin (NT)		+
Met-enkephalin (m ENK)		+
Substance P	+	+
Neuromedin S (NMS)		+
Somatostatin (SSA)		+	+
Calbindin (CalB)		+	+
Calretinin (CALR)		+	+
Angiotensin II (ANGII)		+	+
Galanin (Gal)		+	+
Oxytocin (OX)		+

SCN: suprachiasmatic nucleus; +: presence of the neurotransmitter

Declarations

Acknowledgments

The author acknowledges Saanvi Sharma for her help during the preparation of the manuscript and profusely thanks her for the same.

Author contributions

VR: Conceptualization, Investigation, Writing—original draft, Writing—review & editing. The author read and approved the submitted version.

Conflicts of interest

The author declares that there is no conflict of interest.

Ethical approval

Not applicable.

Consent to participate

Not applicable.

Consent to publication

Not applicable.

Availability of data and materials

Not applicable.

Funding

Not applicable.

Copyright

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