6533b82bfe1ef96bd128e338
RESEARCH PRODUCT
Photoperiod-temperature and neuroblast proliferation-migration in the adult lizard cortex.
A. MolownyCarlos Lopez-garciaF Sanchez-sanchezJuan NacherC RamirezA Irurzunsubject
Cerebral CortexNeuronsNeuroblast proliferationbiologyCerebrumMedial cortexGeneral NeurosciencePhotoperiodTemperatureLizardsbiology.organism_classificationPodarcis hispanicabody regionsmedicine.anatomical_structurenervous systemNeuroblastCerebral cortexCortex (anatomy)EpendymaDentate GyrusmedicineAnimalsFascia dentataNeuroscienceCell Divisiondescription
The lizard medial cortex (a zone homologous to the mammalian fascia dentata) shows delayed postnatal neurogenesis throughout the lifetime of these animals. Experimental lesioning of this area is followed by neuronal regeneration, a unique phenomenon in the adult amniote telencephalon. The differential effects of temperature and photoperiod on postnatal neurogenetic activity were studied using tritiated thymidine pulses and posterior autoradiography as well as proliferating cell nuclear antigen (PCNA) immunostaining. Long (summer) photoperiods increased the number of proliferating neuroblasts in the ependymal neuroepithelium. Cold (winter) temperature prevented migration of the newly generated immature neurones.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1997-07-07 | Neuroreport |