Background Retinoic acid (RA) is a potent signaling molecule that plays pleiotropic roles in patting,morphogenesis,and organogenesis during embryonic developmen
Background 5α-Reductase inhibitors (5α-RI) act by inhibiting the conversion of testosterone to dihydrotestosterone (DHT),thereby preventing DHT induced benign
Background Previous animal and neuroimaging studies have demonstrated that brain function in heroin addicted users is impaired.However,the posterior cingulate c