AT-312 (1-(1-((cis)-4-isopropylcyclohexyl)piperidin-4-yl)-1H-indol-2-yl)methanol) (Figure 1) was synthesized at Astraea Therapeutics, and was of >99% chemical purity as fully characterized by nuclear magnetic resonance spectroscopy, LC-MS and elemental analysis. SCH221510 (Figure 1) was purchased from Tocris. These test compounds were dissolved in 1-2% DMSO and then diluted to the desired concentration with 0.5% aqueous hydroxypropylcellulose (HPC) and injected subcutaneously (s.c.) in a volume of 0.1 ml/10g of body weight. Controls received 0.1 ml/10g of body weight of the appropriate vehicle (1-2% DMSO in 0.5% of HPC).