Abstract：
:Constant light exposure (LL) can result in "splitting" of circadian rhythms into two components coupled about 12 hr apart. Splitting has been interpreted as evidence for the presence of two main oscillators or groups of oscillators underlying circadian rhythms. Abolition of splitting after unilateral suprachiasmatic nucleus ablation suggested that each suprachiasmatic nucleus could correspond to one of these component oscillators. We examined whether lesions outside the suprachiasmatic nuclei (SCN) would abolish split activity rhythms of hamsters in LL. Wheel-running activity was recorded for 3 months after surgery. Tissue damage was assessed by Klüver-Barrera staining. Damage to areas dorso-caudal to the SCN was able to abolish the split condition. Bilateral damage to the anterior SCN, partial unilateral SCN ablation or unilateral periventricular damage also abolished the split pattern. These results indicate that destruction of one SCN is not essential for the elimination of split rhythms since lesions dorsal to the SCN or partial bilateral SCN damage are also effective. Indirect lesion effects on SCN function or damage to extra-SCN oscillators may account for the loss of the split condition.
journal_name
Brain Res Bulljournal_title
Brain research bulletinauthors
Harrington ME,Eskes GA,Dickson P,Rusak Bdoi
10.1016/0361-9230(90)90164-usubject
Has Abstractpub_date
1990-04-01 00:00:00pages
593-7issue
4eissn
0361-9230issn
1873-2747pii
0361-9230(90)90164-Ujournal_volume
24pub_type
杂志文章abstract：:Zinc is a basic trace element that plays important roles in brain and, consequently, its homeostasis needs to be critically controlled. High zinc concentrations in the interneuron synaptic space may induce neuronal death through mechanisms still partially solved. Undifferentiated pheochromocytoma (PC12) cells have bee...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2009.11.008
更新日期：2010-03-16 00:00:00
abstract：:The central anti-nociception of BmK IT2, a sodium channel modulator from scorpion Buthus martensi Karsh (BmK) was investigated in this study. It was found that the formalin-induced rat spontaneous flinches and spinal c-Fos expression could be significantly suppressed by intrathecal BmK IT2 pre- or post-formalin inject...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2007.03.007
更新日期：2007-07-12 00:00:00
abstract：:Motor neurons are endowed with intrinsic and conditional membrane properties that may shape the final motor output. In the first half of this paper we present data on the contribution of I(h), a hyperpolarization-activated inward cation current, to phase-transition in motor neurons during rhythmic firing. Motor neuron...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/s0361-9230(00)00398-1
更新日期：2000-11-15 00:00:00
abstract：:Promoting remyelination and/or minimizing demyelination are key therapeutic strategies under investigation for diseases and injuries like multiple sclerosis (MS), spinal cord injury, stroke, and virus-induced encephalopathy. Myelination is essential for efficacious neuronal signaling. This myelination process is origi...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/j.brainresbull.2019.07.013
更新日期：2019-10-01 00:00:00
abstract：:Calcitonin, a peptide hormone expressed in C-cells of the thyreoid gland, as well as capsaicin, isolated from chili, both, modify intracellular signalling in nociceptive neurones. The pathways triggered by the activation of either of these receptors results in a modulation of the intracellular calcium ([Ca(2+)](i)) co...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2011.02.006
更新日期：2011-04-25 00:00:00
abstract：:An animal with an unimpaired "reference" memory can distinguish between alternatives that belong to a rewarded set and those that are unrewarded. An animal with an unimpaired "working" memory can distinguish between alternatives where it has been rewarded (e.g., food has been eaten and not replaced) and those where it...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(81)90086-1
更新日期：1981-08-01 00:00:00
abstract：:Fatty acid amide hydrolase (FAAH) is an enzyme that metabolizes endocannabinoids and fatty acid amides possibly linked to activation of the opioid system. To examine how this enzyme affects spinal signalling, electrophysiological recordings in the dorsal horn and qPCR on dorsal horn tissue following systemic administr...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2011.11.009
更新日期：2012-02-10 00:00:00
abstract：:The present study investigates the protective effects of electroacupuncture (EA) application on cardiac function, while simultaneously exploring the underlying neurobiological mechanisms, in rats that have experienced thoracic surgery-induced stress. Mean arterial and left intraventricular pressures were monitored as ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2012.06.008
更新日期：2012-10-01 00:00:00
abstract：:We examined some developmental and behavioral sequelae of exposing Binghamton Heterogeneous Stock (HET) mice to a 0.5% aqueous lead acetate solution (as the only available fluid source) for either none, one, two, or three generations. Lead exposure, regardless of generation, resulted in decreased body weight and a del...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(94)00228-s
更新日期：1995-01-01 00:00:00
abstract：:The formalin test was used to measure the analgesia induced by restraint in male and female rats. Animals were restrained for 30 min or left undisturbed in their cage and then (1) killed immediately to collect blood for hormonal determinations; or (2) subcutaneously injected with formalin in the hind paw (or sham-inje...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(98)00063-x
更新日期：1998-09-01 00:00:00
abstract：:Insulin release was examined in human subjects after lingual applications of D-glucose and its anomers. A dose-dependent increase in the insulin release was noted following the application of equilibrated D-glucose consisting of 36% alpha- and 64% beta-anomer. The response was not reproduced after administration of at...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(86)90126-7
更新日期：1986-08-01 00:00:00
abstract：:Homocysteine-inducible endoplasmic reticulum stress-inducible ubiquitin-like domain member 1 protein (HERPUD1) is involved in endoplasmic reticulum stress response. Immense amounts of research showed HERPUD1 plays multiple roles in various models. In this work, we explored the role of HERPUD1 during the pathophysiolog...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2016.11.006
更新日期：2017-01-01 00:00:00
abstract：:Locomotor activity was increased as a function of current intensity in a series of rats with chronic stimulating electrodes in the tegmental pedunculopontine nucleus. Single pulse stimulation of these same mesencephalic locomotor region (MLR) sites antidromically activated more than one-quarter of the neurons sampled ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(86)90060-2
更新日期：1986-03-01 00:00:00
abstract：:A newly developed technique employing the retrograde transport of horseradish peroxidase combined with immunocytochemistry is used to identify the cells of origin of descending spinal pathways and their putative neurotransmitters. With this technique the brainstem origins of descending serotonergic (5HT) pathways to t...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(82)90140-x
更新日期：1982-07-01 00:00:00
abstract：:Excitatory amino acid transporters (EAATs) represent a group of high affinity glutamate transporters that are involved in the regulation of extracellular glutamate levels at glutamatergic synapses. EAAT proteins have been found on neurons as well as on glia cells where they act synergistically to remove the released g...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2010.04.018
更新日期：2010-10-30 00:00:00
abstract：:Seasonal breeders, such as sheep and hamsters, by virtue of their annual cycles of reproduction, represent valuable models for the study of plasticity in the adult mammalian neuroendocrine brain. A major factor responsible for the occurrence of seasonal reproductive transitions is a striking change in the responsivene...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/s0361-9230(97)00225-6
更新日期：1997-01-01 00:00:00
abstract：:Prenatal exposure of mice to heroin (SC injection of 10mg/kg to the dams on gestational days 9-18) resulted at adulthood in behavioral deficits related to septohippocampal cholinergic innervation accompanied with both presynaptic and postsynaptic cholinergic hyperactivity; including an increase membrane PKC activity, ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2004.04.006
更新日期：2004-05-30 00:00:00
abstract：:Spinocerebellar ataxia type 2 is caused by a polyglutamine stretch in the protein ataxin-2 that is due to an expansion of a CAG repeat in the spinocerebellar ataxia-2 gene. The function of wild-type ataxin-2 has not been clarified. A widespread distribution of this protein throughout the brain has been reported. We ex...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(01)00601-3
更新日期：2001-10-01 00:00:00
abstract：:Klotho, which is a life extension factor, and erythropoietin (EPO) have been introduced as effective neuroprotective factors in several neurological disorders. The present study is an attempt to examine the potential role of klotho and EPO in therapeutic effect of curcumin-loaded nanoparticles (NPs) in pentylenetetraz...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2018.08.010
更新日期：2018-09-01 00:00:00
abstract：:The development of central serotonergic neurons has been examined immunocytochemically utilizing an antiserum to serotonin (5-HT). Cells of the B4-B9 complex are first detected early on embryonic day 13 (E13; 7 mm crown rump length, CRL) and increase rapidly in number through E15 when they appear as bilateral columns ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(83)90144-2
更新日期：1983-04-01 00:00:00
abstract：:Aluminium is highly neurotoxic and inhibits prenatal and postnatal development of the brain in humans and experimental animals. However, the incorporation of aluminium into the brain of fetuses and sucklings during gestation and lactation has not been well clarified because aluminium lacks a suitable isotope for a tra...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(01)00509-3
更新日期：2001-05-15 00:00:00
abstract：:Walker 256 carcinosarcoma cells produce subpleural pulmonary metastases when given intravenously to the Sprague-Dawley rat. The number of metastases increases when the rat is given morphine subsequent to the tumor load. The increase in the number of metastases can be blocked be pretreatment with the opiate antagonist ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(86)90057-2
更新日期：1986-03-01 00:00:00
abstract：:Amyotrophic lateral sclerosis (ALS) is a degenerative disease with a progressive loss of motor neurons in the central nervous system (CNS). However, there are unsolved problems with the therapies for this disease. α-Lipoic acid (LA) is a natural, universal antioxidant capable of scavenging hydroxyl radicals as well as...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2018.05.019
更新日期：2018-06-01 00:00:00
abstract：:Schizophrenia (SZ) is a common and severe psychiatric disorder with both environmental and genetic risk factors, and a high heritability. After over 20 years of molecular genetics research, new molecular strategies, primarily genome-wide association studies (GWAS), have generated major tangible progress. This new data...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/j.brainresbull.2010.04.009
更新日期：2010-09-30 00:00:00
abstract：:Morphine exposure may have a negative effect on the receptive field properties of neurons in primary visual cortex of cats. The present experiment used morphological methods in order to investigate whether chronic morphine treatment also affects dendritic characters of these neurons. According to the Sholl analysis an...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2008.06.007
更新日期：2008-09-30 00:00:00
abstract：:Aβ plaques of Alzheimer's disease (AD) are believed to precede cognitive deficits or clinical manifestation by decades. However, validated biomarkers for early diagnosis of the AD disease are still not available. In this present study, we combined MRI-based neuroimages and histological assessment of the glial response...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2020.01.003
更新日期：2020-03-01 00:00:00
abstract：:Fractal nature of the human sleep EEG was revealed recently. In the literature there are some attempts to relate fractal features to spectral properties. However, a comprehensive assessment of the relationship between fractal and power spectral measures is still missing. Therefore, in the present study we investigated...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2010.12.005
更新日期：2011-04-05 00:00:00
abstract：:How deep brain stimulation (DBS) acts and how the brain responds to it remains unclear. To investigate the mechanisms involved, we analyzed changes in local field potentials from the subthalamic area (STN-LFPs) recorded through the deep brain macroelectrode during monopolar DBS of the subthalamic nucleus area (STN-DBS...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2008.01.023
更新日期：2008-07-30 00:00:00
abstract：:Serotonin 5-HT1A receptors belong to the superfamily of G-protein-coupled receptors. Receptor activation of G-proteins can be determined by agonist-stimulated [35S]GTPgammaS binding in the presence of excess GDP, and in vitro autoradiographic adaptation of this technique allows visualization of receptor-activated G-pr...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(97)00061-0
更新日期：1997-01-01 00:00:00
abstract：:Age-related macular degeneration (AMD) is the leading cause of irreversible blindness in people over 60 years of age in the US and many other developed countries. Increasingly sophisticated methods for the diagnosis and treatment of macular degeneration are not effective for the majority of patients in whom late stage...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/S0361-9230(03)00072-8
更新日期：2004-02-15 00:00:00
