5Reisine T, Bell GI. Molecular biology of opioid receptors [J]. Trends Neurosci,1993,16(12) :506 -510.
6Wang JB, Imai Y, Eppler CM, et al.mu opiate receptor: cDNA cloning and expression [J]. Proc Nat] Acad Sci USA, 1993, 90(21) :10230 - 10234.
7Wittert C, Hope P, Pyle D. Tissue distribution of opioid receptor gene expression in the rat[J]. Biochem Biophys Res Commun, 1996, 218(3) :877 -881.
8Yasuda K, Raynor K, Kong H, et al.Cloning and functional comparison of kappa and delta opioid receptors from mouse brain [J]. Proc Nail Acad Sci USA, 1993, 90(14) :6736 -6740.
9Zhu Y, Hsu MS, Pintar JE. Developmental expression of the mu, kappa,and delta opioid receptor mRNAs in mouse[J]. J Neuroaci, 1998, 18(7):2538 - 2549.
10Xu H, Partilla .IS, de Costa BR, et al.Differential binding of opioid peptides and other drugs to two subtypes of opioid delta ncx binding sites in mouse brain: further evidence for delta receptor heterogeneity[J]. Peptides, 1993,14(5) :893 -907.
