Junichi Baba

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We evaluated the effects of rolipram, a selective inhibitor of phosphodiesterase (PDE) 4, on the survival of dopaminergic neurons in 13-day culture. Rolipram did not affect the survival of dopaminergic neurons in the absence of forskolin, but significantly enhanced the survival of dopaminergic neurons in the presence of 10(-5) M forskolin in a(More)
The effects of rolipram, a selective inhibitor of phosphodiesterase 4, on the hyperlocomotion induced by several abused drugs (methamphetamine, morphine and phencyclidine) and a dopamine D1-receptor agonist (SKF81297; (+/-)-6-chloro-7,8-dihydroxy-1-phenyl-2,3 ,4,5-tetrahydro-1H-3-benzazepin hydrobromide) in mice were investigated. Methamphetamine (0.5-2.0(More)
The neuronal and laminar organization of the optic tectum (OT) in the river lamprey was studied using the rapid Golgi method. Based primarily on the distribution pattern of the dendrites, the OT neurons were divided into vertical, horizontal and stellate neurons. The river lamprey OT shows a laminar structure consisting of eight concentric strata. The(More)
The neuronal organization of the spinal cord in red stingray was studied using the rapid Golgi method. The gray matter of the spinal cord was divided into seven laminae: RS-I, RS-II, RS-III, RS-IV, RS-V, RS-VI and RS-VII. RS-I is cell dense lamina which occupies the major part of the dorsal horn and corresponds to laminae I and II of the spinal cord of(More)
A selective inhibitor of cyclic nucleotide phosphodiesterase (PDE) 4, rolipram, markedly enhanced the forskolin-induced increase of intracellular dopamine and dihydroxyphenylacetate (DOPAC, a metabolite of dopamine) levels in primary cultured rat mesencephalic neurons and the forskolin-induced increase of dopamine and DOPAC in extracellular medium.(More)
1. The exact role of the parathyroid hormone-related peptide (PTHrP) is not fully understood. We used immunohistochemistry to localize the PTHrP and its receptor in the brain of the red stingray, particularly in the saccus vasculosus (SV) and choroid plexus. 2. Immunoreactive PTHrP and its receptor were detected in the epithelial cells of the SV and the(More)
The majority of astrophysics involves the study of spiral galaxies, and stars and planets within them, but how spiral arms in galaxies form and evolve is still a fundamental problem. Major progress in this field was made primarily in the 1960s, and early 1970s, but since then there has been no comprehensive update on the state of the field. In this review,(More)
Osteoma is a benign, slow-growing osteogenic tumor that sometimes arises from the craniomaxillofacial region, such as the sinus, temporal or jaw bones. Osteoma consists of compact or cancellous bone that may be peripheral, central or extraskeletal type. Peripheral osteoma arises from the periosteum and is commonly a unilateral, pedunculated mushroom-like(More)
The neuronal organization of the olfactory bulb (OB) in the hagfish (Eptatretus burgeri) was studied using the rapid Golgi method. Cytologically, two groups of cells, the mitral and stellate cells, were discernible in the OB. Cytoarchitecturally, the OB showed a distinct laminar structure. From the periphery inward, the following four strata were(More)
Fluvoxamine, a selective serotonin reuptake inhibitor, is frequently used along with benzodiazepine anxiolytics in clinics. In this study, the effects of fluvoxamine on the anxiolytic effects as well as adverse effects of benzodiazepines were examined in the light/dark box, rota-rod and passive avoidance tests using mice. Diazepam, ethyl loflazepate and its(More)