Research Topics
| Ritchie E BrownSummaryAffiliation: Harvard University Country: USA Publications
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Detail Information
Publications
Characterization of GABAergic neurons in rapid-eye-movement sleep controlling regions of the brainstem reticular formation in GAD67-green fluorescent protein knock-in miceRitchie E Brown
In Vitro Neurophysiology Section, Laboratory of Neuroscience, Harvard Medical School and VA Boston Healthcare System, 940 Belmont Street, Research 151 C, Brockton, MA 02301, USA
Eur J Neurosci 27:352-63. 2008..Orexinergic suppression of REM during waking is probably mediated in part via excitation of acetylcholine-inhibited GABAergic neurons...
Electrophysiological characterization of neurons in the dorsolateral pontine rapid-eye-movement sleep induction zone of the rat: Intrinsic membrane properties and responses to carbachol and orexinsR E Brown
In Vitro Neurophysiology Section, Laboratory of Neuroscience, Department of Psychiatry, Harvard Medical School, VA Medical Center Brockton, Research 151C, 940, Belmont Street, Brockton, MA 02301, USA
Neuroscience 143:739-55. 2006..Some or all carbachol-excited neurons are presumably REM-on neurons...
Involvement of hypocretins/orexins in sleep disorders and narcolepsyRitchie E Brown
Department of Psychiatry, Harvard Medical School, Brockton VA, Massachusetts 02301, USA
Drug News Perspect 16:75-9. 2003..Preliminary findings also indicate that it may malfunction in a variety of other conditions where the normal sleep-wake cycle is compromised...
Convergent excitation of dorsal raphe serotonin neurons by multiple arousal systems (orexin/hypocretin, histamine and noradrenaline)Ritchie E Brown
Institut fur Neurophysiologie, Heinrich Heine Universitat, D 40001 Dusseldorf, Germany
J Neurosci 22:8850-9. 2002..43 and 1, respectively)...
Co-expression of non-selective cation channels of the transient receptor potential canonical family in central aminergic neuronesOlga A Sergeeva
Department of Neurophysiology, Heinrich Heine Universitat, Dusseldorf, Germany
J Neurochem 85:1547-52. 2003..We conclude that several TRPC channel populations exist in individual neurones and that their subunit co-expression pattern is region and cell-type specific...
GAD67-GFP knock-in mice have normal sleep-wake patterns and sleep homeostasisLichao Chen
Laboratory of Neuroscience, VA Boston Healthcare System and Department of Psychiatry, Harvard Medical School, Brockton, Massachusetts, USA
Neuroreport 21:216-20. 2010..Our results suggest GAD67-GFP knock-in mice are an excellent tool for study of GABAergic neurons involved in sleep-wake regulation...
Knockdown of orexin type 1 receptor in rat locus coeruleus increases REM sleep during the dark periodLichao Chen
Research Service, VA Boston Healthcare System, and Department of Psychiatry, Harvard Medical School, Brockton, MA 02301, USA
Eur J Neurosci 32:1528-36. 2010..The results indicate that a modest knockdown of OxR1 is sufficient to induce observable sleep changes. Moreover, orexin neurons, by acting on OxR1 in the LC, play a role in the diurnal gating of REM sleep...
Excitation of ventral tegmental area dopaminergic and nondopaminergic neurons by orexins/hypocretinsTatiana M Korotkova
Institut fur Neurophysiologie, Heinrich Heine Universitat, D 40001 Dusseldorf, Germany
J Neurosci 23:7-11. 2003..In narcolepsy, in which the orexin system is disrupted, dysfunction of the orexin modulation of VTA neurons may be important in triggering attacks of cataplexy...
Sleep fragmentation reduces hippocampal CA1 pyramidal cell excitability and response to adenosineJaime L Tartar
VA Boston Healthcare System and Harvard Medical School, Research 151 C, 940 Belmont Street, Brockton, MA 02301, USA
Neurosci Lett 469:1-5. 2010..Instead, the reduced excitability of CA1 pyramidal neurons observed here may contribute to the loss of hippocampal long-term potentiation and hippocampus-dependent cognitive impairments associated with sleep disruption...
Animal models of narcolepsyLichao Chen
Research Service, VA Boston Healthcare System, Department of Psychiatry, Harvard Medical School, Brockton, MA 02301, USA
CNS Neurol Disord Drug Targets 8:296-308. 2009..To facilitate further research, it is imperative that researchers reach a consensus concerning the evaluation of narcoleptic behavioral and EEG phenomenology in these models...
Control of sleep and wakefulnessRitchie E Brown
Laboratory of Neuroscience, VA Boston Healthcare System and Harvard Medical School, Brockton, Massachusetts 02301, USA
Physiol Rev 92:1087-187. 2012....
Distribution and intrinsic membrane properties of basal forebrain GABAergic and parvalbumin neurons in the mouseJames T McKenna
Laboratory of Neuroscience, VA Boston Healthcare System and Harvard Medical School, Department of Psychiatry, Brockton, Massachusetts, 02301, USA
J Comp Neurol 521:1225-50. 2013....
Knockdown of orexin type 2 receptor in the lateral pontomesencephalic tegmentum of rats increases REM sleepLichao Chen
Research Service, VA Boston Healthcare System, Brockton, MA, USA
Eur J Neurosci 37:957-63. 2013..Orexin type 1 receptor mRNA level was unaffected. Our results indicate that removal of OxR2 neurotransmission in the lPMT enhances REM sleep by increasing the duration of REM episodes...
Orexin A excites serotonergic neurons in the dorsal raphe nucleus of the ratR E Brown
Institut fur Neurophysiologie, Heinrich Heine Universitat, D 40001, Dusseldorf, Germany
Neuropharmacology 40:457-9. 2001..The depolarization persisted in the presence of tetrodotoxin (TTX, 0.5 microM) and was associated with an increase in input resistance. These results have relevance in the context of food intake regulation and the disease, narcolepsy...
Influence of lung volume on pulmonary microvascular pressure-volume characteristicsG P Topulos
Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women s Hospital, Boston, Massachusetts 02115, USA
J Appl Physiol 89:1591-600. 2000..Hysteresis was small (0.013) at all lung volumes, suggesting that, although surface tension may set basal capillary shape, it does not strongly affect capillary compliance...
Hippocampal synaptic plasticity and spatial learning are impaired in a rat model of sleep fragmentationJaime L Tartar
Harvard Medical School and VA Boston Healthcare System, Laboratory of Neuroscience, Research 151 C, 940 Belmont Street, Brockton, MA 02301, USA
Eur J Neurosci 23:2739-48. 2006..The results suggest that sleep fragmentation negatively impacts spatial learning. Loss of N-methyl-D-aspartate (NMDA) receptor-dependent LTP in the hippocampal CA1 region may be one mechanism involved in this deficit...
Effects of arousal- and feeding-related neuropeptides on dopaminergic and GABAergic neurons in the ventral tegmental area of the ratT M Korotkova
Institute for Neurophysiology, Heinrich Heine University, D 40001 Dusseldorf, Germany
Eur J Neurosci 23:2677-85. 2006..These findings suggest a link between the ability of neuropeptides to promote arousal and their action on VTA neurons...
Impaired GABAergic neurotransmission in schizophrenia underlies impairments in cortical gamma band oscillationsJAMES M MCNALLY
Laboratory of Neuroscience, VA Boston Healthcare System and Department of Psychiatry, Harvard Medical School, 940 Belmont St, Research 151C, Brockton, MA, USA
Curr Psychiatry Rep 15:346. 2013....
Mice deficient in endothelial nitric oxide synthase exhibit a selective deficit in hippocampal long-term potentiationR I Wilson
Institut fur Neurophysiologie, Heinrich Heine Universitat, Dusseldorf, Germany
Neuroscience 90:1157-65. 1999..These results support a selective role for endothelial nitric oxide synthase in long-term potentiation, but also demonstrate that nitric oxide synthase is not involved in this process under all conditions...
Defective hippocampal mossy fiber long-term potentiation in endothelial nitric oxide synthase knockout miceN Doreulee
, , , Germany
Synapse 41:191-4. 2001..Thus, eNOS is not directly involved in mfLTP, but lack of eNOS during development leads to a deficit downstream of adenylyl cyclase...
The physiology of brain histamineR E Brown
Institut fur Neurophysiologie, Heinrich Heine Universitat, D 40001, Dusseldorf, Germany
Prog Neurobiol 63:637-72. 2001..A role for the neuronal histamine system as a danger response system is proposed...
Histamine excites GABAergic cells in the rat substantia nigra and ventral tegmental area in vitroTatiana M Korotkova
Institute for Neurophysiology, Heinrich Heine University, D 40001, Duesseldorf, Germany
Neurosci Lett 320:133-6. 2002..Our results suggest that histamine does not directly inhibit dopaminergic neurons in SN and VTA, but rather that this inhibition is mediated through histamine-induced excitation of GABAergic neurons...
Selective excitation of GABAergic neurons in the substantia nigra of the rat by orexin/hypocretin in vitroTatiana M Korotkova
, , D-40001, , Germany
Regul Pept 104:83-9. 2002..The orexin excitation of SN reticulata cells may help to maintain their high firing rate during waking. Furthermore, the absence of orexin effects in narcolepsy may predispose affected individuals to attacks of cataplexy...
Functional diversity of ventral midbrain dopamine and GABAergic neuronsTatiana M Korotkova
Institute of Neurophysiology, Heinrich Heine University, D 40001 Duesseldorf, Germany
Mol Neurobiol 29:243-59. 2004....
