Relationships between summer thermal variations and cell proliferation in heterothermic vertebrates, as revealed by PCNA expression in the brain of adult Rana bergeri (Günther, 1986)
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引用次数: 2
Abstract
About the issue if the natural encephalic proliferative activities can be influenced by the seasonal (thermal and photoperiodic) cyclic fluctuations in adult earth-dwelling Anamnia and poikilothermal Amniota there is a gap regarding expressly summer season alone in literature reports on autoradiographic studies in frog. The actual study suggests that the brain proliferative pattern in Rana bergeri collected in the wild in summer is intermediate between those previously observed in spring and autumn. This would seem to indicate a proliferative increase from spring to autumn. This pattern mainly appears in the forebrain, typically in the olfactory portion where the stem cells are identifiable as scattered “matrix“ cells in the ependyma and grey matter, and in the telencephalic district, where these cells are grouped as “matrix” areas in the well-known zonae germinativae dorsales and ventrales.
期刊介绍：
The Italian Journal of Anatomy and Embryology, founded in 1901 by Giulio Chiarugi, Anatomist at Florence University, is a peer-reviewed journal sponsored by the Italian Society of Anatomy and Embryology. The journal publishes original papers, invited review articles, historical article, commentaries, obituitary, and book reviews. Its main focus is to understand anatomy through an analysis of structure, function, development and evolution. Priority will be given to studies of that clearly articulate their relevance to the anatomical community. Focal areas include: experimental studies, contributions based on molecular and cell biology and on the application of modern imaging techniques; comparative functional morphology; developmental biology; functional human anatomy; methodological innovations in anatomical research; significant advances in anatomical education. Studies that are essentially descriptive anatomy are appropriate only if they communicate clearly a broader functional or evolutionary significance. All papers should be submitted in English and must be original works that are unpublished and not under consideration by another journal. An international Editorial Board and reviewers from the anatomical disciplines guarantee a rapid review of your paper within two to three weeks after submission.
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