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. 2008 Jun 30;155(2):236–243. doi: 10.1038/bjp.2008.253

Table 3.

Neuropeptide-induced relaxation in rabbit vaginal strips

Peptide EC50 (nM) Slope Emax (mN) n
VIP 80.9±5.4 0.60±0.3 87.0±5.3% 18
PACAP 1–27 116±82.3 0.4±0.2 95.9±10.5% 12
αMSH >1000 36±6.7% 12

Abbreviations: αMSH, α-melanocortin-stimulating hormone; PACAP, pituitary adenylate cyclase-activating polypeptide; VIP, vasoactive intestinal peptide.