Cyclic amplification of protein misfolding: application to prion-related disorders and beyond.

abstract：:Huntington's disease is an inherited neurodegenerative disorder, the cause of which is unknown. Excitotoxicity, mitochondrial dysfunction and oxidative stress are all likely to contribute to the striatal cell death that occurs in this disorder. There are accumulating data indicating that under specific circumstances, ...

journal_title：Trends in neurosciences

authors： Jakel RJ,Maragos WF

更新日期：2000-06-01 00:00:00

abstract：:Striatal enriched tyrosine phosphatase (STEP) has recently been identified as a crucial player in the regulation of synaptic function. It is restricted to neurons within the CNS and acts by downregulating the activity of MAP kinases, the tyrosine kinase Fyn and NMDA receptors. By modulating these substrates, STEP acts...

journal_title：Trends in neurosciences

authors： Braithwaite SP,Paul S,Nairn AC,Lombroso PJ

更新日期：2006-08-01 00:00:00

abstract：:Although the mechanisms regulating the cerebral microcirculation during neural activity have been the subject of inquiry for a century or more, the mediators responsible for the changes in cerebral blood flow still remain to be clearly identified. The discovery that nitric oxide, a powerful cerebrovasodilator, is prod...

journal_title：Trends in neurosciences

authors： Iadecola C

更新日期：1993-06-01 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

authors： Baimbridge KG,Celio MR,Rogers JH

更新日期：1992-08-01 00:00:00

abstract：:The fruit fly, Drosophila melanogaster, has become a model for the study of a growing number of human characteristics because of the power of its genetics. Higher cognitive functions, however, might be assumed to be out of reach for the little fly. But the cumulative history of cognitive studies in insects and some of...

journal_title：Trends in neurosciences

authors： Greenspan RJ,van Swinderen B

更新日期：2004-12-01 00:00:00

abstract：:During prenatal brain development, ion channels are ubiquitous across several cell types, including progenitor cells and migrating neurons but their function has not been clear. In the past, ion channel dysfunction has been primarily studied in the context of postnatal, differentiated neurons that fire action potentia...

journal_title：Trends in neurosciences

authors： Smith RS,Walsh CA

更新日期：2020-02-01 00:00:00

abstract：:Trans-synaptic modulation of cortical ACh efflux is a useful approach for determining the functions of cortical ACh. Bilateral modulation of basal forebrain GABAergic transmission by benzodiazepine-receptor agonists and inverse agonists decreases and increases, respectively, activated cortical ACh efflux. The determin...

journal_title：Trends in neurosciences

authors： Sarter MF,Bruno JP

更新日期：1994-06-01 00:00:00

abstract：:In the mammalian central nervous system (CNS), coupling of neurons by gap junctions (i.e., electrical synapses) and the expression of the neuronal gap junction protein, connexin 36 (Cx36), transiently increase during early postnatal development. The levels of both subsequently decline and remain low in the adult, conf...

journal_title：Trends in neurosciences

authors： Belousov AB,Fontes JD

更新日期：2013-04-01 00:00:00

abstract：:Tissue injury can initiate bidirectional signaling between neurons, glia, and immune cells that creates and amplifies pain. While the ability for neurotransmitters, neuropeptides, and cytokines to initiate and maintain pain has been extensively studied, recent work has identified a key role for reactive oxygen and nit...

journal_title：Trends in neurosciences

authors： Grace PM,Gaudet AD,Staikopoulos V,Maier SF,Hutchinson MR,Salvemini D,Watkins LR

更新日期：2016-12-01 00:00:00

abstract：:There is compelling evidence linking bradykinin (BK) with the pathophysiological processes that accompany tissue damage and inflammation, especially the production of pain and hyperalgesia. Several mechanisms have been proposed to account for hyperalgesia including the direct activation of nociceptors as well as sensi...

journal_title：Trends in neurosciences

authors： Dray A,Perkins M

更新日期：1993-03-01 00:00:00

abstract：:P2X receptors are cation-selective ion channels that open on binding to extracellular ATP; they play a role in fast synaptic transmission between neurones, and from autonomic nerves to smooth muscles. Isolation of cDNAs that encode P2X receptors in the smooth muscle of vas deferens and in phaeochromocytoma cells indic...

journal_title：Trends in neurosciences

authors： Surprenant A,Buell G,North RA

更新日期：1995-05-01 00:00:00

abstract：:Oxytocin and vasopressin are regulators of anxiety, stress-coping, and sociality. They are released within hypothalamic and limbic areas from dendrites, axons, and perikarya independently of, or coordinated with, secretion from neurohypophysial terminals. Central oxytocin exerts anxiolytic and antidepressive effects, ...

journal_title：Trends in neurosciences

authors： Neumann ID,Landgraf R

更新日期：2012-11-01 00:00:00

abstract：:Communication is a central theme in biology. Consequently, specialized structures have evolved to permit rapid communication among cells, tissues, organs, and physiological systems, thus enhancing the overall function and adaptation of the organism. A prime example is the neuronal synapse. In the brain, synaptic commu...

journal_title：Trends in neurosciences

authors： Picard M

更新日期：2015-08-01 00:00:00

abstract：:For organs innervated by the autonomic nervous system, it is generally held that neuroeffector transmission is achieved by varicosities releasing transmitters some distance from the membranes of target cells. Transmitters are thought to diffuse through the extracellular space and interact with post-junctional receptor...

journal_title：Trends in neurosciences

authors： Hirst GD,Bramich NJ,Edwards FR,Klemm M

更新日期：1992-02-01 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

authors： Parnavelas JG,Papadopoulos GC

更新日期：1989-09-01 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

authors： Halpain S

更新日期：2000-04-01 00:00:00

abstract：:Mesolimbic dopaminergic neurons are thought to serve as a final common neural pathway for mediating reinforcement processes. However, several recent findings have challenged the view that mesolimbic dopamine has a crucial role in the maintenance of reinforcement processes, or the subjective rewarding actions of natura...

journal_title：Trends in neurosciences

authors： Spanagel R,Weiss F

更新日期：1999-11-01 00:00:00

abstract：:The existence of an endogenous cannabinoid system was demonstrated conclusively with the discovery of endogenous brain constituents capable of activating the cannabinoid receptors functionally. These compounds are synthesized by neuronal cells and inactivated through re-uptake and enzymatic hydrolysis by both neurons ...

journal_title：Trends in neurosciences

authors： Di Marzo V,Melck D,Bisogno T,De Petrocellis L

更新日期：1998-12-01 00:00:00

abstract：:Gliomas are terrifying primary brain tumors for which patient outlook remains bleak. Recent research provides novel insights into the unique biology of gliomas. For example, these tumors exhibit an unexpected pluripotency that enables them to grow their own vasculature. They have an unusual ability to navigate tortuou...

journal_title：Trends in neurosciences

authors： Watkins S,Sontheimer H

更新日期：2012-09-01 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

authors： Meunier C,Segev I

更新日期：2002-11-01 00:00:00

abstract：:It has been suggested, on the basis of neuroanatomical and behavioural data, that olfactory discrimination in the rat provides privileged access to higher cognitive processes, involves the acquisition of a learning-set and, importantly, can be used to model human hippocampal function and dysfunction. In this article, ...

journal_title：Trends in neurosciences

authors： Reid IC,Morris RG

更新日期：1993-01-01 00:00:00

abstract：:Advances in gene discovery for neurodevelopmental disorders have identified SCN2A dysfunction as a leading cause of infantile seizures, autism spectrum disorder, and intellectual disability. SCN2A encodes the neuronal sodium channel NaV1.2. Functional assays demonstrate strong correlation between genotype and phenotyp...

journal_title：Trends in neurosciences

authors： Sanders SJ,Campbell AJ,Cottrell JR,Moller RS,Wagner FF,Auldridge AL,Bernier RA,Catterall WA,Chung WK,Empfield JR,George AL Jr,Hipp JF,Khwaja O,Kiskinis E,Lal D,Malhotra D,Millichap JJ,Otis TS,Petrou S,Pitt G,Schus

更新日期：2018-07-01 00:00:00

abstract：:The hippocampus is thought to automatically encode all experience, yet the vast majority of our experiences are not remembered later. Although psychological theories have postulated the existence of decay processes for declarative memory, the corresponding neurobiological mechanisms are unknown. Here we develop the hy...

journal_title：Trends in neurosciences

authors： Frankland PW,Köhler S,Josselyn SA

更新日期：2013-09-01 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

authors： Baker MD

更新日期：2000-11-01 00:00:00

abstract：:Hebbian synaptic learning requires co-activation of presynaptic and postsynaptic neurons. However, under some conditions, information regarding the postsynaptic action potential, carried by backpropagating action potentials, can be strongly degraded before it reaches the distal exhibit Hebbian long-term potentiation (...

journal_title：Trends in neurosciences

authors： Mehta MR

更新日期：2004-02-01 00:00:00

abstract：:In contrast to innocuous stimuli, which only have transient effects when applied to the body surface, noxious stimuli generate persistent changes in the nervous system. This nociceptive memory manifests itself most prominently as a post-injury sensitization where, after tissue damage, the avoidance reaction and pain t...

journal_title：Trends in neurosciences

authors： Woolf CJ,Walters ET

更新日期：1991-02-01 00:00:00

abstract：:Intensive mapping of the essential cerebellar brain circuits for Pavlovian eyeblink conditioning appeared relatively complete by 2000, but new data indicate the need for additional differentiation of cerebellar regions and mechanisms coding delay and trace conditioning. This is especially important, as trace condition...

journal_title：Trends in neurosciences

authors： Woodruff-Pak DS,Disterhoft JF

更新日期：2008-02-01 00:00:00

abstract：:Life span is determined by both environmental and genetic influences. The importance of genes is illustrated by the fact that single gene mutations extend life span in nematodes, fruit flies and mice. Recent reports reveal that the life span of Caenorhabditis elegans is controlled by insulin-like signals from the nerv...

journal_title：Trends in neurosciences

authors： Wolkow CA

更新日期：2002-04-01 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

authors： Calvo-Rodriguez M,Bacskai BJ

更新日期：2021-02-01 00:00:00

abstract：:Navigation depends upon neural systems that monitor spatial location and head orientation. Recent developmental findings have led some to conclude that these systems are innate. Such claims are premature. But also, there are more meaningful ways to arrive at answers about developmental origins than by invoking the out...

journal_title：Trends in neurosciences

authors： Blumberg MS

更新日期：2015-02-01 00:00:00