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The two mammalian bombesin-like peptides, gastrin-releasing peptide (GRP) and neuromedin B (NMB), are structurally related neuropeptides reported to elicit a variety of responses in different cell types, including modulation of neuronal activity and growth. Two distinct bombesin receptor subtypes have recently been characterized: a mouse GRP-preferring(More)
During development, a subpopulation of olfactory neurons transiently expresses GABA. The spatiotemporal pattern of GABAergic expression coincides with migration of luteinizing hormone-releasing hormone (LHRH) neurons from the olfactory pit to the CNS. In this investigation, we evaluated the role of GABAergic input on LHRH neuronal migration using olfactory(More)
BACKGROUND Adult bone marrow-derived (BMD) cells could be used to repair damaged organs and tissues, but the intrinsic plasticity of these cells has been questioned by results of in-vitro studies suggesting that such cells might fuse with other cells giving the appearance of differentiation. We aimed to determine whether fusion events are important in vivo.(More)
Inhibition of the LHRH system appears to play an important role in preventing precocious activation of the hypothalamic-pituitary-gonadal axis. Evidence points to gamma-aminobutyric acid (GABA) as the major negative regulator of postnatal LHRH neuronal activity. Changes in LHRH messenger RNA (mRNA) levels after alterations of GABAergic activity have been(More)
Luteinizing hormone releasing hormone (LHRH) neurons in the CNS are derived from cells of the olfactory placode and thereafter migrate from the olfactory pit into the diencephalon. In this study, we examined embryonic LHRH neurons and the LHRH migratory pathway for several markers. During development, N-CAM and peripherin mRNA were expressed by olfactory(More)
Two anti-neurophysin monoclonal antibodies (MABs), PS 36 and PS 41, described in the preceding paper (Ben-Barak, Y, J.T. Russell, M.H. Whitnall, K. Ozato, and H. Gainer (1985) J. Neurosci. 5:000-000), allowed us to specifically stain for oxytocin-associated neurophysin (NP-OT) or vasopressin-associated neurophysin (NP-AVP) in the hypothalamus of developing(More)
Considerable attention has focused on regulation of central tryptophan hydroxylase (TPH) activity and protein expression. At the time of these earlier studies, it was thought that there was a single central TPH isoform. However, with the recent identification of TPH2, it becomes important to distinguish between regulatory effects on the protein expression(More)
The combination of granulocyte colony-stimulating factor and stem cell factor significantly increases the number of bone marrow–derived endothelial cells in brains of mice following cerebral ischemia Granulocyte colony-stimulating factor (G-CSF) induces proliferation of bone marrow–derived cells. G-CSF is neuropro-tective after experimental brain injury,(More)
The cytokine transforming growth factor alpha (TGF alpha) has proangiogenic and proneurogenic effects and can potentially reduce infarct volumes. Therefore, we administered TGF alpha or vehicle directly into the area surrounding the infarct in female mice that received gender-mismatched bone marrow transplants from green fluorescent protein (GFP)-expressing(More)
BACKGROUND Recently we demonstrated that gastric mucosa of rats can synthesize, store and release dopamine. Out of five different subtypes, mRNA of D5 (=D1b) dopamine receptor is very abundant in the gastric epithelium. D1 receptor selective dopamine agonists have been shown to protect against experimental gastro-duodenal lesions. AIMS To test the(More)