Abstract：
:The in vitro and in vivo effects of alphaxalone, a steroid anesthetic, and two physiological steroids, tetrahydrodeoxycorticosterone (THDOC) and pregnenolone sulfate (PS), on GABAA receptor function were evaluated in long-sleep (LS) and short-sleep (SS) mice. In vitro, both alphaxalone and THDOC enhanced GABAergic inhibition as measured by [3H]FNZ binding and GABA-stimulated 36Cl- flux. However, with the exception of alphaxalone potentiation of [3H]FNZ binding, which was greater in SS brain regions, LS and SS mice did not differ in their degree of enhancement. Pregnenolone sulfate produced mixed agonistic and antagonistic effects on GABAergic function, dependent upon brain region, with few differences between the lines of mice. In vivo effects of these steroids on sleep time indicated that, like other anesthetic agents, THDOC and alphaxalone induced longer sleep times in LS mice. Antagonism by PS of ethanol-induced sleep time was observed in LS mice only; however, this effect was dependent upon the dose of ethanol used and on the vehicle used to prepare the steroid. Pentobarbital-induced sleep time was not reduced by PS treatment in either line of mouse. These results demonstrate that few differences in sensitivity of the GABAergic receptor to these steroids exist between LS and SS mice. Thus, unlike the differences between LS and SS mice in GABAergic mediation of responses to ethanol and benzodiazepines, there is little genetic variability in subtypes of GABAA receptors capable of modulation by steroids in these lines of mice.
journal_name
Brain Res Bulljournal_title
Brain research bulletinauthors
Bowers BJ,Wehner JMdoi
10.1016/0361-9230(92)90009-mkeywords:
subject
Has Abstractpub_date
1992-07-01 00:00:00pages
57-68issue
1eissn
0361-9230issn
1873-2747pii
0361-9230(92)90009-Mjournal_volume
29pub_type
杂志文章abstract：:Patterns of female sexual behavior in the hamster are qualitatively different from that observed in the rat. Hamsters demonstrate tonic immobility and a sustained lordotic response that can last for several minutes following minimal stimulation from the male while in rats, the lordotic response is highly dependent upo...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(87)90064-5
更新日期：1987-12-01 00:00:00
abstract：BACKGROUND AND PURPOSE:In humans, activation of the diving reflex by a cold stimulus to the face results in bradycardia, peripheral vasoconstriction and an increase in blood pressure. However, responses of the cerebral blood flow have not yet been evaluated. We undertook this study to assess the effect of cold face sti...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(03)00065-0
更新日期：2003-06-30 00:00:00
abstract：:Somatostatin immunoreactive (SOM-I) perikarya were first observed in the ventral horn at E12, in the presumptive intermediate gray area at E14, and in the alar plate of the rostral spinal cord at E14. In general, after their initial appearance, their density increased and then decreased during development. A moderate ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(88)90125-6
更新日期：1988-07-01 00:00:00
abstract：:The sources of noradrenergic (NA) innervation to the hypoglossal nucleus (nXII) in the rat were investigated with double-labeling histochemical/immunocytochemical and lesion/degeneration techniques. Following injection of wheat germ-agglutinin conjugated to horseradish peroxidase into nXII, brain stem sections were re...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(92)90168-w
更新日期：1992-12-01 00:00:00
abstract：:Prior results (37) showed that morphine pretreatment reduces the escape response of the crab Chasmagnathus to a shadow passing overhead and prevents the acquisition of a long-term habituation. These results were explained by a reduction in the danger signalled by the stimulus, and to test this hypothesis methods other...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(91)90163-e
更新日期：1991-05-01 00:00:00
abstract：:We previously reported that systemic treatment with a noncompetitive antagonist affecting the NMDA subtype of excitatory amino acid (EAA) receptor, MK-801, inhibits photic induction of Fos-like immunoreactivity (Fos-lir) in the hamster suprachiasmatic nucleus (SCN). Because MK-801 blocks the Ca2+ channel associated wi...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(92)90269-4
更新日期：1992-05-01 00:00:00
abstract：:Various hypotheses are reviewed concerning the mechanisms of feeding induced by insulin or 2DG. New data are presented to show that elevated plasma ketone levels are not sufficient to suppress 2DG feeding, suggesting that nourishment of the brain either does not occur or is not sufficient to stop 2DG feeding. We find ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(85)90111-x
更新日期：1985-06-01 00:00:00
abstract：:Hoe 065 is a compound structurally related to the angiotensin converting enzyme inhibitors and capable of increasing central cholinergic activity. The effects of this compound were studied on alcohol intake and on the reduction in alcohol intake produced by abutapril, an angiotensin converting enzyme inhibitor. Hoe 06...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(91)90104-r
更新日期：1991-04-01 00:00:00
abstract：:The involvement of alpha-amino-3-hydroxy-5-methylizoxazole-4-propionic acid (AMPA) receptors in induction of long-term potentiation (LTP) was examined in rat hippocampal slice preparation. Using conventional extracellular recording, excitatory postsynaptic potentials (EPSPs) and population action potentials (PSs), evo...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(00)00288-4
更新日期：2000-08-01 00:00:00
abstract：:Although neural occlusion has been suggested to occur between the central and reflex mechanisms increasing arterial pressure, evidence consistent with this phenomenon is lacking. To assess the possibility of neural occlusion we recorded, in chloralose-anesthetized cats, the pressor responses to statically contracting ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(89)90058-0
更新日期：1989-02-01 00:00:00
abstract：:Carbon monoxide (CO) and nitric oxide (NO) modulate inflammatory nociception and anxiety. We evaluate whether treatments with a heme oxygenase-1 (HO-1) inducer (CoPP) or a carbon monoxide-releasing molecule (CORM-2) are capable of inhibiting inflammatory pain aversiveness in wild type (WT) and inducible nitric oxide s...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2021.01.002
更新日期：2021-01-07 00:00:00
abstract：:Neutral, magnesium-stimulated sphingomyelinase and acid sphingomyelinase activities in the neurohypophysis, adenohypophysis and cerebrum of rats given 2.25% NaCl drinking water for 7 or 14 days were compared with the same enzyme activities in the tissues of control animals allowed free access to distilled drinking wat...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(83)90028-x
更新日期：1983-05-01 00:00:00
abstract：:Windup, the frequency dependent build-up of spinal neuronal responses is an electrophysiological model of the development of the central sensitization in the chronic pain states. NR2B subunit containing NMDA-type glutamate receptors are implicated in the windup of dorsal horn neurons, while their role at the motoneuro...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2004.06.002
更新日期：2004-08-30 00:00:00
abstract：:Inferior olive neurons, in brain slices maintained in vitro, display spontaneous, continuous oscillations of their membrane potential which are consonant with olivary rhythmic activity seen in vivo. This oscillatory behavior was studied with intracellular electrophysiological techniques. The 3-10 Hz rhythmicity of the...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(86)90089-4
更新日期：1986-12-01 00:00:00
abstract：:In this study we investigated the ability of the dentate gyrus to independently generate cholinergically induced theta rhythm in vitro. Two different experiments were performed. In Experiment I, new laminar profiles of theta phase, amplitude, and current sources and sinks were constructed. In this experiment a gradual...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2009.07.003
更新日期：2009-09-28 00:00:00
abstract：:The presence of intrinsic neurons in the hypothalamus containing the enzyme phenylethanolamine N-methyltransferase (PNMT), was investigated by selective destruction of the local cell bodies with kainic acid (KA), a potent excitotoxin. The unilateral stereotaxic injection of 2 micrograms of KA into the lateral hypothal...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(89)90193-7
更新日期：1989-12-01 00:00:00
abstract：:Pax6 is a highly conserved transcription factor essential for the development of the eyes in vertebrate and invertebrate species. It is also required for normal development of many regions of the central nervous system, including the mammalian forebrain, hindbrain and spinal cord. In the forebrain, it is expressed in ...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/j.brainresbull.2005.02.006
更新日期：2005-09-15 00:00:00
abstract：:The objective of this study was to determine the organization of coactivation in the arm and shoulder muscles. Normal human subjects made alternate movements of a joint in the horizontal plane, either adduction-abduction of the second finger and shoulder, ulnar-radial deviation of the wrist, or extension-flexion of th...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(02)00952-8
更新日期：2003-02-15 00:00:00
abstract：:The increase in life expectancy seen in many countries has been accompanied by an increase in the number of people living with dementia and a growing need for health care. The large number of affected individuals emphasizes the need to identify causes for the phenotypes associated with diseases such as Alzheimer's, Pa...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/j.brainresbull.2010.02.013
更新日期：2010-04-29 00:00:00
abstract：:Regions of the midbrain in the rat were stimulated electrically with bipolar electrodes to identify responsive, single neurons in the parafloccular lobule of the cerebellum. Eighty four percent (44/52) of the cells recorded in the paraflocculus showed evidence of a modulation in simple spike discharge activity (mossy ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(84)90054-6
更新日期：1984-03-01 00:00:00
abstract：:The presence of glial cell line-derived neurotrophic factor (GDNF) is described within specific regions of the adult rat pituitary gland. Immune staining methods revealed a small number of GDNF-immunopositive cells in the anterior lobe, and in areas of the neural lobe, while no immunoreactive endocrine cells were obse...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(00)00242-2
更新日期：2000-05-15 00:00:00
abstract：:Polymerase chain reaction assays are a powerful tool for detecting the presence of infectious genomes in the cerebrospinal fluid. Positive results always mean a current or pending infection of the central nervous system. Subacute (>7 days) or chronic infections induce an intrathecal humoral immune response and the app...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(03)00093-5
更新日期：2003-08-15 00:00:00
abstract：:Depression is associated with uncontrolled diabetes, which indicates a lack of insulin effect, yet the role of the insulin receptor in mediating depression is not clearly established because insulin receptors are not required for glucose entry into the brain. However, insulin receptors are important for brain function...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2018.09.017
更新日期：2018-10-01 00:00:00
abstract：:Thyroid-stimulating hormone (TSH) stimulates the synthesis and release of thyroid hormones including triiodothyronine (T3) and thyroxine (T4). Semiquantitative analyses using northern blot and in situ hybridization suggested that TSH gene transcription is upregulated under conditions of hypothyroidism. However, no qua...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2007.06.004
更新日期：2007-09-14 00:00:00
abstract：:We studied mitochondria in the satellite cell sheaths which envelope the spinal ganglion neurons of rabbits aged 12, 42, and 79 months. While the mean cytoplasmic volume of satellite cell sheaths did not change significantly with age, the mean percentage of cytoplasmic volume occupied by mitochondria decreased with ag...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(03)00101-1
更新日期：2003-07-15 00:00:00
abstract：:The effects of chronic administration of delta 9-tetrahydrocannabinol (delta 9-THC) on the plasma and brain catecholamine (CA) levels were measured using high performance liquid chromatography-electrochemical detection (LC-EC) system. Intact male rats were injected daily with vehicle (50 microliter oil) or with delta ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(85)90179-0
更新日期：1985-01-01 00:00:00
abstract：:Taurine is an abundant amino acid in the nervous system, which has been proved to possess antioxidation, osmoregulation and membrane stabilization. Previously it has been demonstrated that taurine exerts ischemic brain injury protective effect. This study was designed to investigate whether the protective effect of ta...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2016.06.010
更新日期：2016-06-01 00:00:00
abstract：:Intracerebroventricular (IVT) administration of renin (R) to conscious male hydrated rats induces an increase in sodium excretion. The involvement of brain dopaminergic neurons in the renal action of IVT-R was investigated. Renin-induced natriuretic action was prevented by domperidone and by inhibition of tyrosine hyd...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(96)00032-9
更新日期：1996-01-01 00:00:00
abstract：:Waxing and waning electrographic responses (augmenting) and primary evoked responses could be induced in restricted regions of hippocampus, thalamus, and skeletal muscle by bipolar, low-frequency (7-10 Hz), low-amplitude (35 mV-4V) stimulation of selected sites within the hippocampus or thalamus of rabbits. Induction ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(77)90003-x
更新日期：1977-03-01 00:00:00
abstract：:Cell replacement therapy is of great interest as a long-term treatment of neurodegenerative diseases such as Parkinson's disease (PD). We have previously shown that Sertoli cells (SC) provide neurotrophic support to transplants of dopaminergic fetal neurons and NT2N neurons, derived from the human clonal precursors ce...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2004.09.003
更新日期：2004-12-15 00:00:00
