Evidence for a differential innervation of the spinal motor columns by substance P and serotonin in the fetal monkey.
In the late-term fetal monkey, serotonin (5HT) and substance P (SP) immunoreactivities were localized to two distinct neural networks in the ventral horn of the spinal cord. In contrast, the adult monkey has SP and 5HT colocalized to the same terminals.
D000818:Animals; D006651:Histocytochemistry; D007120:Immunochemistry; D009046:Motor Neurons / Q000378:metabolism; D010215:Papio; D012701:Serotonin / Q000378:metabolism*; D013116:Spinal Cord / Q000378:metabolism*; D013373:Substance P / Q000378:metabolism*
D012701:Serotonin; D013373:Substance P