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 (Purkinje-cell-degeneration) mutant mouse (an animal model of hereditary degenerative ataxia) reveal that embryonic Purkinje cells, by some unknown sorting mechanism, selectively invade the deprived cerebellar cortex. These neurons migrate to their proper domains and, inducing axonal sprouting of specific populations of host neurons, they become integrated synaptically within the pcd cerebellar cortex. However, the re-establishment of the corticonuclear projection is achieved only rarely, and this is the current experimental limit for the complete reconstruction of the cerebellar circuit.
journal_name
Trends Neuroscijournal_title
Trends in neurosciencesauthors
Sotelo C,Alvarado-Mallart RMdoi
10.1016/0166-2236(91)90161-msubject
Has Abstractpub_date
1991-08-01 00:00:00pages
350-5issue
8eissn
0166-2236issn
1878-108Xpii
0166-2236(91)90161-Mjournal_volume
14pub_type
杂志文章,评审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::The marriage of cognitive neurophysiology and mathematical psychology to understand decision-making has been exceptionally productive. This interdisciplinary area is based on the proposition that particular neurons or circuits instantiate the accumulation of evidence specified by mathematical models of sequential samp...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2019.10.001
更新日期:2019-12-01 00:00:00
abstract::An abundance of experimental literature has established that gonadal steroid hormones are responsible for the sexual differentiation of neural circuitry, mediating a variety of reproductive behaviors and physiological mechanisms. These same hormones regulate the expression of reproductive function in the adult and may...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/0166-2236(90)90186-e
更新日期:1990-03-01 00:00:00
abstract::The nigrostriatal dopamine (DA) system has an essential role in the selection and control of movement sequences, and its degeneration causes the characteristic motor symptoms of Parkinson's disease. Parkinsonian motor symptoms are alleviated by L-DOPA, but this treatment induces motor fluctuations and dyskinesias (abn...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2007.03.005
更新日期:2007-05-01 00:00:00
abstract::The brain includes multiple types of interconnected excitatory and inhibitory neurons that together allow us to move, think, feel, and interact with the environment. Inhibitory interneurons (INs) comprise a small, heterogeneous fraction, but they exert a powerful and tight control over neuronal activity and consequent...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2017.05.004
更新日期:2017-07-01 00:00:00
abstract::A variety of fatty acids regulate the activity of specific ion channels by mechanisms not involving the enzymatic pathways that convert arachidonic acid to oxygenated metabolites. Furthermore, these actions of fatty acids occur in patches of membrane excised from the cell and are not mediated by cellular signal transd...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/0166-2236(91)90069-7
更新日期:1991-03-01 00:00:00
abstract::Synaptically released glutamate activates extrasynaptic receptors; such actions are controlled by glutamate uptake. Recent experimental findings show that there are many more glutamate transporters on the postsynaptic than presynaptic side of the vicinity of central synapses. This asymmetry favours activation of axona...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/s0166-2236(02)02230-0
更新日期:2002-10-01 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::Hodgkin and Huxley (H-H) model for action potential generation has held firm for half a century because this relatively simple and experimentally testable model embodies the major features of membrane nonlinearity: namely, voltage-dependent ionic currents that activate and inactivate in time. However, experimental and...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/s0166-2236(02)02278-6
更新日期:2002-11-01 00:00:00
abstract::Anatomical and functional studies of the prefrontal cortex (PFC) have identified multiple PFC subregions. We argue that the PFC is involved in cognitive functions exceeding the sum of specific functions attributed to its subregions. These can be revealed either by lesions of the whole PFC, or more specifically by sele...
journal_title:Trends in neurosciences
pub_type: 杂志文章
doi:10.1016/j.tins.2010.08.001
更新日期:2010-12-01 00:00:00
abstract::Itch is a distinct sensation arising from the superficial layers of skin and mucous membranes. It is elicited by histamine and probably other endogenous chemicals that excite subpopulations of unmyelinated primary afferents and spinal neurones projecting through the anterolateral quadrant to the brain. The two popular...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/0166-2236(92)90102-e
更新日期:1992-12-01 00:00:00
abstract::The mechanisms underlying lesion formation in multiple sclerosis are unknown. The prevailing view is that macrophages are primary mediators of myelin destruction in the relapsing and remitting forms of this disease. However, recent findings have revealed widespread oligodendrocyte apoptosis in the absence of a clear c...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2005.01.006
更新日期:2005-04-01 00:00:00
abstract::The nervous system is made up of many specific types of neuron intricately intertwined to form complex networks. Identifying and defining the characteristic features of the many different neuronal types is essential for achieving a cellular understanding of complex activity from perception to cognition. So far, cortic...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2003.08.002
更新日期:2003-10-01 00:00:00
abstract::When nuclear magnetic resonance images (MRIs) of the brain are acquired in rapid succession they exhibit small differences in signal intensity in positions corresponding to focal areas of activation. These signal changes result from small differences in the magnetic resonance signal caused by variations in the oxygena...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/0166-2236(94)90055-8
更新日期:1994-07-01 00:00:00
abstract::Lyme disease is of interest to the neurologist and neuroscientist for a variety of reasons. As more arthropod hosts throughout the world are infected with the causative organism, Borrelia burgdorferi, the illness in humans is becoming more prevalent; in addition, recognition of the disease in humans and susceptible an...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/0166-2236(89)90065-9
更新日期:1989-05-01 00:00:00
abstract::The strange and unpleasant sensations (paraesthesiae) or asynchronous motor-unit activation (fasciculation) that result from a period of limb ischaemia are examples of ectopic discharge in peripheral nerves. Ectopic activity also results from demyelination and is associated with serious neurological conditions, such a...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/s0166-2236(00)01645-3
更新日期:2000-11-01 00:00:00
abstract::How does an extracellular guidance molecule direct multiple growth cones to different positions? The answer is important for understanding the development of complex neural connections. UNC-6 is a member of the netrin family of guidance proteins. It has phylogenetically conserved domains that mediate its different gui...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/s0166-2236(02)02206-3
更新日期:2002-08-01 00:00:00
abstract::Immunoglobulin superfamily adhesion molecules are among the most abundant proteins in vertebrate and invertebrate nervous systems. Prominent family members are the neural cell adhesion molecules NCAM and L1, which were the first to be shown to be essential not only in development but also in synaptic function and as k...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2017.03.003
更新日期:2017-05-01 00:00:00
abstract::Classical receptive-field concepts have been used to explain local perceptual effects such as border contrast and Mach bands, but are not sufficient to explain global perceptual effects. Examples are the perception of illusory contours, area contrast, color constancy, depth planes, coherent motion and texture contrast...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/0166-2236(96)10038-2
更新日期:1996-10-01 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::A defining feature of the vertebrate nervous system is the ensheathment of axons by myelin, a multilamellar membrane containing a small group of proteins and an abundance of the galactolipid galactocerebroside (GalC) and its sulfated derivative sulfatide. Several in vitro studies have suggested that these galactolipid...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/s0166-2236(97)01178-8
更新日期:1998-03-01 00:00:00
abstract::Mitochondrial dysfunction has been implicated in the pathogenesis of almost all neurological diseases, including Alzheimer's disease (AD). Historically, a primary focus in this context has been the link between mitochondrial dynamics and amyloid β toxicity. Recent evidence suggests that dysregulation of mitochondrial ...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2020.10.004
更新日期:2021-02-01 00:00:00
abstract::As a neurodevelopmental disorder with serious lifelong consequences, autism has received considerable attention from neuroscientists and geneticists. We present a hypothesis of mechanisms plausibly affected during brain development in autism, based on neural pathways that are associated with social behavior and connec...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2019.05.002
更新日期:2019-07-01 00:00:00
abstract::The discovery of genetic forms of Parkinson's disease (PD) has highlighted the importance of the autophagy/lysosomal and mitochondrial/oxidative stress pathways in disease pathogenesis. However, recently identified PD-linked genes, including DNAJC6 (auxilin), SYNJ1 (synaptojanin 1), and the PD risk gene SH3GL2 (endoph...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2018.11.001
更新日期:2019-02-01 00:00:00
abstract::It is generally thought that monoamines play a nonspecific role in modulating cortical activity. However, several lines of evidence now indicate that cortical monoaminergic afferents show remarkable anatomical specificity. In particular, there is unequivocal evidence for regional, laminar and intracortical specificity...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/0166-2236(89)90037-4
更新日期:1989-09-01 00:00:00
abstract::Implanted neural probes are among the most important techniques in both fundamental and clinical neuroscience. Despite great successes and promise, neural electrodes are technically limited by their scalability. A recent study by Obaid et al. demonstrated an innovative way to greatly scale up the channel count and den...
journal_title:Trends in neurosciences
pub_type: 杂志文章
doi:10.1016/j.tins.2020.03.001
更新日期:2020-05-01 00:00:00
abstract::Tsao et al. have recently used functional magnetic resonance imaging to compare processing for moving stereoscopic forms in macaque and human brains. Most humans exhibited activation in a swath of lateral occipital areas, extending into the intraparietal sulcus, with a limited version of the same pattern in monkeys. H...
journal_title:Trends in neurosciences
pub_type: 杂志文章
doi:10.1016/j.tins.2003.12.009
更新日期:2004-03-01 00:00:00
abstract::Both theoretical and experimental animal work supports the hypothesis that transient oscillatory synchronization of neuronal assemblies at gamma frequencies (30-100 Hz) is closely associated with sensory processing. Recent data from recordings in animals and humans have suggested that gamma-frequency activity also has...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2007.05.001
更新日期:2007-07-01 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::Progress in molecular genetics has enabled the dissection of several autosomal dominantly inherited forms of cerebrovascular disorders. Mutations in diverse genes might induce pathological changes in intracranial vessels, resulting in cerebral haemorrhages and ischaemic strokes. Such pathologies, however, might also r...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/s0166-2236(00)01836-1
更新日期:2001-07-01 00:00:00