PMID- 6330304 OWN - NLM STAT- MEDLINE DCOM- 19840808 LR - 20190630 IS - 0022-3042 (Print) IS - 0022-3042 (Linking) VI - 43 IP - 2 DP - 1984 Aug TI - Beta-adrenergic binding sites in fetal rat brain. PG - 578-81 AB - The ontogeny of beta-adrenergic binding sites was studied in forebrain homogenates from male and female rats. Specific [3H]dihydroalprenolol binding was defined by the difference between binding in the presence and in the absence of 330 nM (+)oxprenolol. Significant binding was detected at prenatal stages. The dissociation constants (KD) of [3H]dihydroalprenolol binding were similar at gestational day (GD) 19 3/4 and postnatal day (PN) 31. Binding was first detected in forebrain at GD 15 3/4. The amount of binding sites increased until PN 31, when adult values were reached. No sex differences could be detected at any of the stages tested (GD 19 3/4-PN 31). FAU - Bruinink, A AU - Bruinink A FAU - Lichtensteiger, W AU - Lichtensteiger W LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - J Neurochem JT - Journal of neurochemistry JID - 2985190R RN - 0 (Receptors, Adrenergic, beta) RN - 60106-89-0 (Dihydroalprenolol) SB - IM MH - Aging MH - Animals MH - Brain/*embryology/growth & development/metabolism MH - Dihydroalprenolol/metabolism MH - Female MH - Fetus MH - Gestational Age MH - Kinetics MH - Pregnancy MH - Rats MH - Rats, Inbred Strains MH - Receptors, Adrenergic, beta/*metabolism EDAT- 1984/08/01 00:00 MHDA- 1984/08/01 00:01 CRDT- 1984/08/01 00:00 PHST- 1984/08/01 00:00 [pubmed] PHST- 1984/08/01 00:01 [medline] PHST- 1984/08/01 00:00 [entrez] AID - 10.1111/j.1471-4159.1984.tb00937.x [doi] PST - ppublish SO - J Neurochem. 1984 Aug;43(2):578-81. doi: 10.1111/j.1471-4159.1984.tb00937.x.