The cytoarchitectonics and expression of apoptosis (as an indicator of stabilization of formative processes) in nuclear, paleocortical, and intermediate formations of the paleoamygdala of the rat on days 21, 24, 28, and 31 of postnatal development was studied. The results of analysis suggest that the morphogenesis of these formations is characterized by heterochrony due to the complexity of their structural organization predefined by the phylogenetic age. On day 21 of postnatal development of the rat, only the dorsomedial nucleus is well differentiated; on days 24–28, the posterior medial nucleus is well differentiated. The medial part of the posterior cortical nucleus (intermediate formation) is differentiated from the lateral part of this nucleus on day 28. The lateral part of the posterior cortical nucleus, which exhibits the characteristics of a paleocortical formation, acquires the cytoarchitectonics characteristic of an adult animal on day 31 of postnatal development. The dynamics of changes in the apoptotic index reflects the stabilization of morphogenetic processes characterized on the basis of cytoarchitectonic criteria. The results of this study and the neurogenetic data, indicating the presence of spatiotemporal gradients in the formation of the amygdaloid complex and the multiplicity of the original histogenetic domains, confirm the correctness of the previous concept (Akmaev and Kalimullina, 1993) on the substrate of this brain structure as a nuclear-paleocortical component of the brain.
Russian Journal of Developmental Biology – Springer Journals
Published: Jan 21, 2015
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera