Abstract:
:Recent results shed new light on how some nervous systems can regenerate after injury while others cannot. Until recently, it was widely believed that the main difference between systems that regenerate and those that do not lies in the normal state of their permissiveness to the regenerating axons. Thus, while nonregenerative systems, such as the rat optic nerve, were shown to contain myelin-associated growth inhibitors, regenerative systems, such as the fish optic nerve, were thought to have no such inhibitors. However, it has now been demonstrated that spontaneously regenerating systems do contain growth inhibitors, though their levels seem to be lower than in nonregenerative systems. The main difference, however, appears to reside in the system's response to injury. This article discusses the involvement of myelin-associated growth inhibitors in the spontaneously regenerating nervous system of fish, traces the apparent discrepancy, and shows how it has been resolved recently.
journal_name
Trends Neuroscijournal_title
Trends in neurosciencesauthors
Sivron T,Schwartz Mdoi
10.1016/0166-2236(94)90056-6subject
Has Abstractpub_date
1994-07-01 00:00:00pages
277-81issue
7eissn
0166-2236issn
1878-108Xpii
0166-2236(94)90056-6journal_volume
17pub_type
杂志文章,评审abstract::Acute inflammation plays an important role in host tissue defense against injury and infection, and also subsequent tissue repair. In the central nervous system parenchyma, following many types of insults, the acute inflammatory response to rapid neuronal degeneration or challenge with inflammatory substances differs ...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/0166-2236(93)90180-t
更新日期:1993-07-01 00:00:00
abstract::How should evolution and development build the brain to be capable of flexible and generative cognition? I wish to put forth a 'power-of-two'-based wiring logic that provides the basic computational principle in organizing the microarchitecture of cell assemblies that would readily enable knowledge and adaptive behavi...
journal_title:Trends in neurosciences
pub_type: 杂志文章
doi:10.1016/j.tins.2015.09.002
更新日期:2015-11-01 00:00:00
abstract::Resolvins, including D and E series resolvins, are endogenous lipid mediators generated during the resolution phase of acute inflammation from the omega-3 polyunsaturated fatty acids docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA). Resolvins have potent anti-inflammatory and pro-resolution actions in severa...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2011.08.005
更新日期:2011-11-01 00:00:00
abstract::In adult rodents, subventricular zone (SVZ) astrocytes (B cells) function as primary progenitors in the generation of new neurons that migrate to the olfactory bulb (OB), where they differentiate into multiple types of interneurons. It has been generally considered that individual adult SVZ stem cells are capable of g...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2008.05.006
更新日期:2008-08-01 00:00:00
abstract::Cell replacement therapy has been proposed as a means to replace lost dopaminergic neurons in Parkinson's disease (PD). In most studies, the transplanted cells have been placed within the target site, the striatum, and not within the lesioned site, the substantia nigra, as the adult nigrostriatal pathway was thought t...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2011.01.003
更新日期:2011-03-01 00:00:00
abstract::Currently available antibodies to the P2X(7) receptor are unreliable determinants of neuronal P2X(7) immunoreactivity, owing to staining of a "P2X(7)-like" protein that is not eliminated by legitimate P2X(7) gene-knockout approaches. Despite this, compelling electrophysiological and pharmacological data strongly suppo...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2006.03.003
更新日期:2006-05-01 00:00:00
abstract::Over the past couple of years, it has become evident that some males carrying the fragile X mental retardation (FMR1) premutation, typically viewed to be normal, in fact manifest a neurodegenerative disease with ataxia and tremor. FMR1 premutation alleles uniquely produce FMR1 transcripts with an elongated CGG repeat,...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2004.03.003
更新日期:2004-05-01 00:00:00
abstract::The vertebrate neuromuscular junction (NMJ), a peripheral synapse formed between motoneuron and skeletal muscle, is characterized by a protracted postnatal period of maturation and life-long maintenance. In neuromuscular disorders such as congenital myasthenic syndromes (CMSs), disruptions of NMJ maturation and/or mai...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2012.04.005
更新日期:2012-07-01 00:00:00
abstract::The complex issue of translating the planning of arm movements into muscle forces is discussed in relation to the recent discovery of structures in the spinal cord. These structures contain circuitry that, when activated, produce precisely balanced contractions in groups of muscles. These synergistic contractions gene...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/0166-2236(95)94494-p
更新日期:1995-10-01 00:00:00
abstract::During the past several decades, lac permease has assumed almost tutelary proportions as a model for cotransporters. This archetypical membrane protein now exerts its influence by the most dramatic means possible: its structure is solved. This article describes the configuration and implied transport mechanism of the ...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2004.04.007
更新日期:2004-06-01 00:00:00
abstract::Strong evidence has been provided that ATP can act as a transmitter not only in smooth muscle but also in peripheral ganglia and in brain. The cloning and molecular identification of two putative ATP receptors supports the previously established pharmacological receptor classifications. This review places into perspec...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/0166-2236(94)90016-7
更新日期:1994-10-01 00:00:00
abstract::The construction of artificial walking machines has been a challenging task for engineers for several centuries. Advances in computer technology have stimulated this research in the past two decades, and enormous progress has been made, particularly in recent years. Nevertheless, in comparing the walk of a six-legged ...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/0166-2236(90)90057-h
更新日期:1990-01-01 00:00:00
abstract::Korsakoff's disease is an amnesic syndrome associated with midline diencephalic and brain stem pathology. A number of neurochemical systems course through or near the loci of brain lesions found postmortem in Korsakoff patients, which has stimulated studies to learn whether these systems are implicated in amnesia. Dat...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/0166-2236(90)90146-2
更新日期:1990-08-01 00:00:00
abstract::Intracellular Ca2+ initiates physiological events as diverse as gene transcription, muscle contraction, cell division and exocytosis. Predictably, the metabolic machinery that elicits and responds to changes in intracellular Ca2+ is correspondingly heterogeneous. This review focuses on one element of this complex web ...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:
更新日期:1995-02-01 00:00:00
abstract::ATP-sensitive K+ channels couple cell metabolism to electrical activity in nerve, muscle and endocrine cells, and play important roles in these tissues under both physiological and pathological conditions. The KATP channel is an octameric complex of two unrelated types of subunit: a pore-forming subunit (Kir6.2) and a...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/s0166-2236(98)01225-9
更新日期:1998-07-01 00:00:00
abstract::Multiple sclerosis (MS), an incurable but manageable disorder, is characterized by chronic inflammatory demyelination and neurodegeneration in the central nervous system. Although the primary cause of this often devastating disease remains elusive, major therapeutic advances have occurred during the past two decades. ...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2009.12.002
更新日期:2010-03-01 00:00:00
abstract::A fundamental problem in systems neuroscience is mapping the physical properties of a stimulus to perceptual characteristics. In vision, wavelength translates into color; in audition, frequency translates into pitch. Although odorant concentration is a key feature of olfactory stimuli, we do not know how concentration...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2014.05.005
更新日期:2014-08-01 00:00:00
abstract::Precisely wired neuronal circuits process sensory information in a learning- and context-dependent manner in order to govern behavior. Simple sensory decision-making tasks in rodents are now beginning to reveal the contributions of distinct cell types and brain regions participating in the conversion of sensory inform...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2018.08.011
更新日期:2019-01-01 00:00:00
abstract::Nearly 30 years ago, a debate over two disparate models of synaptic vesicle retrieval arose. Subsequent investigations to determine which model was correct proved inconclusive and served only to further the debate. However, recent evidence has begun to suggest that both models are valid and relevant in understanding t...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/s0166-2236(00)01769-0
更新日期:2001-04-01 00:00:00
abstract::Rather than merely a nuisance, noise in biological systems is a useful property. Before patch-clamp methods were invented, analysis of membrane current noise provided the first solid, if indirect, evidence for the existence of ion-conducting pores with discrete conductance levels. Although supplanted by single-channel...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/s0166-2236(98)01238-7
更新日期:1998-04-01 00:00:00
abstract::A general assay for evaluating functional interactions between ligands and G-protein-coupled receptors within minutes has been developed. The system uses the principles employed by animals such as reptiles, amphibians and fish to control their colors. In nature, activation of G-protein-coupled receptors expressed by s...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/0166-2236(94)90087-6
更新日期:1994-04-01 00:00:00
abstract::Axon interruption elicits a complex neuronal response that leaves neurons poised precariously between death and regeneration. The signals underlying this dichotomy are not fully understood. The transcription factor c-Jun is one of the earliest and most consistent markers for neurons that respond to nerve-fiber transec...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/s0166-2236(96)01000-4
更新日期:1997-05-01 00:00:00
abstract::High levels of expression of Ca2+/phospholipid-dependent protein kinase C (PKC) occur in neuronal tissues and play a strategic role in the modulation of short- and long-term functions (ion channels, receptor desensitization, neurotransmitter release and synaptic efficiency) that become modified during the brain ageing...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/s0166-2236(97)01084-9
更新日期:1997-09-01 00:00:00
abstract::The ability to map functional activity in the living human brain has rekindled interest in the organization of human neural circuitry specifically and in animal neural circuitry generally. Faced with incredible complexity, researchers are turning to the power of computer graphics for two- and three-dimensional interac...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/0166-2236(95)92766-j
更新日期:1995-11-01 00:00:00
abstract::Repair of adult 'point-to-point' systems by neural grafting is possible only when grafted neurons succeed in synaptically replacing the host's missing neurons, thus re-establishing the anatomical and functional integrity of the impaired circuits. Grafting experiments carried out on the cerebellum of the adult pcd (Pur...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/0166-2236(91)90161-m
更新日期:1991-08-01 00:00:00
abstract::Among the many calcium-binding proteins in the nervous system, parvalbumin, calbindin-D28K and calretinin are particularly striking in their abundance and in the specificity of their distribution. They can be found in different subsets of neurons in many brain regions. Although it is not yet known whether they play a ...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/0166-2236(92)90081-i
更新日期:1992-08-01 00:00:00
abstract::Gene targeting to create null mutations in mice is a powerful new tool in biology which will allow the molecular dissection of complex phenotypes such as mammalian brain function, and learning and memory. However, the attempt to interpret the phenotypical changes which arise in null-mutant mice is subject to several c...
journal_title:Trends in neurosciences
pub_type: 杂志文章
doi:10.1016/s0166-2236(96)20020-7
更新日期:1996-05-01 00:00:00
abstract::Since early anatomical descriptions, the existence of dendritic spines has stimulated intense curiosity and speculation about their regulation and function. Research over the past three decades has described an impressive mutability in dendritic-spine number and morphology under a variety of physiological circumstance...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/s0166-2236(00)01576-9
更新日期:2000-04-01 00:00:00
abstract::Dendritic spines, small bulbous postsynaptic compartments emanating from neuronal dendrites, have been thought to serve as basic units of memory storage. Despite their small size (~0.1 femtoliter), thousands of species of proteins exist in the spine, including receptors, channels, scaffolding proteins and signaling en...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2011.12.002
更新日期:2012-02-01 00:00:00
abstract::Sensory representations are repeatedly transformed by neural computations that determine which of their attributes can be effectively processed at each stage. Whereas some early computations are common across multiple sensory systems, they can utilize dissimilar underlying mechanisms depending on the properties of eac...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2009.12.004
更新日期:2010-03-01 00:00:00