Abstract：
:Root-spinal cord regeneration was investigated in immature and adult rats. The elongation in the dorsal root of regrowing dorsal root axons, rerouted ventral root nerve fibres (cholinergic neurons) or hypogastric nerve fibres (catecholaminergic neurons) is impeded as they meet the astrocyte dominated CNS tissue of the root. The establishment of synaptoid nerve terminals as the regrowing axons encounter astrocytes indicates a mechanism for growth inhibition other than a physical impediment in the CNS environment. The glial cells of the CNS segment in the root are influenced by the type of regenerating nerve fibres in terms of maintenance, multiplication and phenotypic expression. After a dorsal root lesion in the neonatal rat several root axons may reinnervate the spinal cord. In these rats, the normal establishment of a CNS root segment has been disrupted and the PNS-CNS border is situated central to the root-spinal cord junction. Implantation of cut dorsal roots into the spinal cord of adult rats results in the extension of processes from intrinsic spinal cord neurons out into the root. After implantation of avulsed ventral roots into the ventro-lateral aspect of the cord, axonal regrowth and functional restitution of alpha-motoneurons could be demonstrated by intracellular recordings and injections with horseradish peroxidase. These results show that regeneration can occur across a PNS-CNS interface that has been established secondary to a trauma in the mature animal and in the immature animal before the astrocyte-rich CNS root segment has been developed.
journal_name
Brain Res Bulljournal_title
Brain research bulletinauthors
Carlstedt T,Cullheim S,Risling M,Ulfhake Bdoi
10.1016/0361-9230(89)90133-0subject
Has Abstractpub_date
1989-01-01 00:00:00pages
93-102issue
1eissn
0361-9230issn
1873-2747pii
0361-9230(89)90133-0journal_volume
22pub_type
杂志文章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：:The Tac4 gene-derived hemokinin-1 (HK-1) is present in pain-related regions and activates the tachykinin NK1 receptor, but with binding site and signaling pathways different from Substance P (SP). NK1 receptor is involved in nociception, but our earlier data showed that it has no role in chronic neuropathic hyperalges...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2019.01.015
更新日期：2019-04-01 00:00:00
abstract：:To clarify the role of febrile temperatures on the immune system, rats were immunized with sheep erythrocytes and their core temperature was then changed by continuously cooling or heating the preoptic area for five days. Core temperatures of up to 2 degrees C above or below normal were associated with a high titre of...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(84)90124-2
更新日期：1984-08-01 00:00:00
abstract：:In the preceding article, a dorsochiasmatic area (DCh) was described that projects to both paraventricular (PVN) and supraoptic (SON) nuclei. The main afferents of the DCh, revealed by local injections of retrograde tracers, are the hypothalamic PVN and SON, lateral septal nuclei (LSV and SHy), bed nuclei of the stria...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(94)90107-4
更新日期：1994-01-01 00:00:00
abstract：:A number of biological risk factors have been implicated for Alzheimer's disease (AD). The investigation of prevalence rates of AD in crosscultural populations has much potential in validating these factors. We previously assessed brain amyloid beta (A beta) protein deposition and other lesions associated with AD as p...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/s0361-9230(97)00310-9
更新日期：1997-01-01 00:00:00
abstract：:Mounting clinical and experimental evidence suggests the gut-brain interplay as a novel important paradigm in translational neuroscience, including the critical role for gut microbiota in modulating brain development and behavior, as well as neuroimmune and neuroendocrine responses. Animal models are an indispensable ...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/j.brainresbull.2019.03.003
更新日期：2019-05-01 00:00:00
abstract：:Nogo, also known as Reticulon-4, is a protein that is specific to the central nervous system (CNS), and has been identified as an inhibitor of neurite outgrowth. Nogo-A is the largest member of the Nogo family and is responsible for inhibition of CNS regeneration. The structural information and biological functions of...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/j.brainresbull.2012.02.011
更新日期：2012-04-10 00:00:00
abstract：:Adult male Sprague-Dawley rats were made paraplegic by a complete transection of the spinal cord at lower thoracic level. One week later they were transplanted, below the level of the section, with a cell suspension prepared from the raphe region of 14-day embryos. After survival periods of 10 days to 1 year, the anim...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(89)90136-6
更新日期：1989-01-01 00:00:00
abstract：:Sleep EEG in the sigma and delta frequency bands was subjected to spectral analysis in 8 normal young adults. In each subject, power density of sigma and delta oscillated reciprocally during NREM sleep, confirming an observation made initially with period/amplitude analysis. In REM sleep, power density for both freque...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(91)90286-s
更新日期：1991-07-01 00:00:00
abstract：:The inhibition of excitatory mechanisms by components of low molecular weight, isolated from spiders and solitary wasps, such as, the acyl-polyamines, has demonstrated, on the one hand, neuroprotection potential, and on the other hand, it is well known that some arthropod venom components have convulsant activity. Whi...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(00)00300-2
更新日期：2000-08-01 00:00:00
abstract：:The unique noradrenergic and specific serotonergic antidepressant mirtazapine acts antinociceptive. It is optically active and currently marketed as racemate. In an animal model of acute pain it has been shown that the enantiomers exhibit differential effects: the R(-)-enantiomer showed anti-, the S(+)-enantiomer pron...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2008.12.015
更新日期：2009-04-06 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：:Seven benzodiazepine-receptor ligands of the beta-carbolines' group were administered IP in Wistar rats from (1) a strain displaying spontaneous petit mal-like seizures (PMLS) characterized by spike and wave discharges (SWD) and, (2) a strain where no seizure is ever observed (NS). Five different types of effects were...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(87)90101-8
更新日期：1987-09-01 00:00:00
abstract：:Bone marrow stromal cells (BMSCs) are promising donor cells for transplantation therapies for a variety of diseases. However, there still lack efficient ways to induce directional differentiation of BMSCs to promote their practical use in transplantation therapy. In this study, we constructed hybrid cells by transferr...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2011.11.001
更新日期：2012-02-10 00:00:00
abstract：:The suprachiasmatic nucleus (SCN) receives a direct retinal projection, which in rats includes substance P (SP)-immunoreactive retinal ganglion cells. While SP has been shown to have neurophysiological effects on SCN cells in Syrian hamsters and rats, it is not known what effects SP in the SCN has on circadian rhythms...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(96)00371-1
更新日期：1997-01-01 00:00:00
abstract：:A simple low-cost modification to a conventional horizontal two-stage micropipette puller is described. It allows the production of pipettes suitable for patch-clamp studies. It requires that the hard-pull stage of the fabrication process be disabled and two heating cycles, each with a different heating filament tempe...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(89)90036-1
更新日期：1989-05-01 00:00:00
abstract：:We have studied the molecular and cellular mechanisms underlying the acute and chronic effects of opiate on neurons of the rat locus coeruleus (LC). Acutely, opiates inhibit LC neurons by activating K+ channels and inhibiting a novel sodium-dependent inward current. Both of these actions are mediated via pertussis tox...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/0361-9230(94)90166-x
更新日期：1994-01-01 00:00:00
abstract：:Spinal cord ischemia-reperfusion injury(SCII)affects nerve function through many mechanisms, which are complex and not fully understood. Recently, accumulating evidence has indicated that long noncoding RNAs (lncRNAs) play an increasingly important role in SCII. We investigated the role of lncRNA growth arrest-specifi...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2020.12.005
更新日期：2020-12-11 00:00:00
abstract：:Rats were injected unilaterally into the rostral substantia nigra pars compacta with 8 micron of 6-OHDA. Those animals that conformed to be behavioral criteria for an effective nigrostriatal dopamine lesion by turning ipsilaterally to the injected side upon IP amphetamine, and contralaterally upon apomorphine injectio...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(81)80042-1
更新日期：1981-02-01 00:00:00
abstract：:Methylphenidate (MPD) is currently one of the most prescribed drug therapies for attention deficit/hyperactivity disorder (ADHD) and moreover is abused for cognitive enhancement and used for recreation by the young and adults. Methylphenidate is used for prolonged periods of time and its mechanism of action on the bra...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2011.10.008
更新日期：2012-03-10 00:00:00
abstract：:Neuropathic pain (NP) is a challenge due to our limited understanding of the mechanisms that initiate and maintain chronic pain. The prelimbic division (PrL) of the medial prefrontal cortex (mPFC) is an important area of the emotional and cognitive components of pain and pharmacological systems can interact into the n...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2020.09.013
更新日期：2020-12-01 00:00:00
abstract：:The central GABAergic system is associated with normal blood pressure regulation, but the role of GABA receptors in genetic hypertension remains unclear. This study was conducted to investigate GABAA receptor binding in several brain regions of spontaneously hypertensive (SHR) rats during development of hypertension. ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(94)00164-v
更新日期：1995-01-01 00:00:00
abstract：:Enhancing inhibition via gamma-aminobutyric acid type A (GABA(A)) receptors contributes to anesthetic-induced impairment of long-term potentiation (LTP) of excitatory synaptic transmission, which may account for general anesthesia-associated memory impairment (amnesia). The neuron-specific K+ -Cl- cotransporter 2 (KCC...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2006.07.004
更新日期：2006-10-16 00:00:00
abstract：:Both the lateral hypothalamus (LH) and reticular thalamus (RT) have been implicated in the integration of a variety of vital functions. To determine relevant connections more specifically between cells of these two regions in the rat, functional neurophysiological and horseradish peroxidase (HRP) histochemical techniq...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(94)90083-3
更新日期：1994-01-01 00:00:00
abstract：:Microspectrofluorometry has played an important part in the development and understanding of fluorescence techniques for the demonstration of biogenic amines. This paper reviews briefly the techniques currently available for the characterization and localization of biogenic amines, and considers the basic design consi...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(82)90124-1
更新日期：1982-07-01 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 mechanism of action of the anticonvulsant drug valproic acid (VPA) was studied in rat amygdaloid slices using intracellular recording techniques. In the presence of bicuculline (20 microM), stimulation of the endopyriform nucleus evoked an excitatory postsynaptic potential (EPSP) followed by a paroxysmal depolariz...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(94)90202-x
更新日期：1994-01-01 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：: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：:A correlative study between behavioral, neurochemical and hormonal measures was conducted on male black tufted-ear marmoset monkeys (Callithrix penicillata). Behavioral analysis was performed in order to examine the effects of confrontation with a natural predator (taxidermized oncilla cat, Felis tigrina). The subject...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2007.07.012
更新日期：2007-11-01 00:00:00
