title: Olfactory tract transection in neonatal rats: evidence for mitral cell regeneration and restoration of functional connectivity with its targets.
abstract: Central Nervous System (CNS) regeneration and repair mechanism are two important aspects of functional recovery in the adult central nervous system following brain and spinal cord injury. Following olfactory tract transection in neonatal rats, functional connectivity between the olfactory bulb and the piriform cortex gets re-established by 120 days. The recovery of the dendritic morphology was associated with the synchronized oscillatory activity between olfactory bulb and piriform cortex. Mitral cells which were regenerated after the transection showed profuse branching, indicative of their undifferentiated state. However, normal dendritic morphology could be seen by 120 days after olfactory tract transection. These results thus provide a supportive evidence for the restoration of the functional connections between the olfactory bulb and the piriform cortex at 120 days.
authors.affiliation: Department of Neurophysiology, National Institute of Mental Health and Neurosciences (NIMHANS), Hosur Road, PB No. 2900, Bangalore 560 029, India.
authors.forename: S P
authors.initials: SP
authors.lastname: Anil
authors.forename: T R
authors.initials: TR
authors.lastname: Laxmi
authors.forename: Bindu M
authors.initials: BM
authors.lastname: Kutty
authors.forename: T R
authors.initials: TR
authors.lastname: Raju
mesh_terms: D000200:Action Potentials / Q000502:physiology; D000818:Animals; D000831:Animals, Newborn; D001522:Behavior, Animal / Q000502:physiology; D002454:Cell Differentiation / Q000502:physiology; D003713:Dendritic Cells / Q000473:pathology / Q000502:physiology; D008297:Male; D009410:Nerve Degeneration / Q000473:pathology*; D009416:Nerve Regeneration / Q000502:physiology*; D009474:Neurons / Q000473:pathology* / Q000502:physiology; D009830:Olfactory Bulb / Q000254:growth & development / Q000473:pathology / Q000502:physiology; D009833:Olfactory Pathways / Q000254:growth & development / Q000473:pathology* / Q000502:physiology; D051381:Rats; D017208:Rats, Wistar; D020127:Recovery of Function; D017550:Spectroscopy, Fourier Transform Infrared; D013997:Time Factors