Autor: |
Davide Verotta, Alessandra Tavani, L.E. Robson, Paola Petrillo, Hans W. Kosterlitz |
Rok vydání: |
1987 |
Předmět: |
|
Zdroj: |
Developmental Brain Research. 31:53-58 |
ISSN: |
0165-3806 |
DOI: |
10.1016/0165-3806(87)90082-4 |
Popis: |
With selective labelling techniques and analysis of saturation curves it is shown that in rat brain the concentrations of μ-, δ- and χ-binding sites increase differentially during postnatal development. There are no changes in the binding affinities. The concentration (pmol/g brain) of χ-sites are first to reach adult levels, namely between 7 and 14 days after birth. Adult levels of μ-sites are attained between 14 and 21 days after birth. The most striking finding is that development of δ-sites, which are not detectable 3 days after birth by the method used, lags markedly behind that of μ- and χ-sites. The profile of development in rat brain is compared to that found previously in mouse brain. |
Databáze: |
OpenAIRE |
Externí odkaz: |
|