Abstract:
:It might appear curious to read about yeast, slime molds and protozoa in a journal dedicated to neuroscience. However, despite their distinct lack of synapses, eukaryotic microorganisms hold a wealth of information relevant to the signal-transduction pathways that underly activity in neuronal receptor cells, particularly those subserving the chemical senses. Microorganisms are sensitive to chemical stimuli from their environment and thus have similarities to receptor neurons of the olfactory system and the taste bud. Here, we introduce receptors, second messengers and effectors responsible for chemosensory signal transduction in yeast mating, sea-urchin spermatozoan chemotaxis, slime-mold aggregation and development, and ciliate chemoresponses.
journal_name
Trends Neuroscijournal_title
Trends in neurosciencesauthors
Van Houten Jdoi
10.1016/0166-2236(94)90076-0subject
Has Abstractpub_date
1994-02-01 00:00:00pages
62-71issue
2eissn
0166-2236issn
1878-108Xpii
0166-2236(94)90076-0journal_volume
17pub_type
杂志文章,评审abstract::Despite its highly diffusible nature, the gaseous signalling molecule nitric oxide (NO) can exert specific effects within the CNS and PNS. To date, the specificity of the actions of NO remains an unsolved puzzle. There are several plausible mechanisms that might account for this specificity in the context of autonomic...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/s0166-2236(02)02261-0
更新日期:2002-12-01 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::Extracellular acid can have important effects on neuron function. In central and peripheral neurons, acid-sensing ion channels (ASICs) have emerged as key receptors for extracellular protons, and recent studies suggest diverse roles for these channels in the pathophysiology of pain, ischemic stroke and psychiatric dis...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2006.06.014
更新日期:2006-10-01 00:00:00
abstract::It is well established that some excitatory nerve terminals have high concentrations of Zn(2+) in their synaptic vesicles. For some time, it has been believed that synaptic Zn(2+) is released during neurotransmission and acts as a neuromodulator. Fluorescent Zn(2+) indicators that do not penetrate membranes offer the ...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2006.02.004
更新日期:2006-04-01 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::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::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
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2012.11.001
更新日期:2013-04-01 00:00:00
abstract::GABA neurotransmission requires a specialized set of proteins to synthesize, transport or respond to GABA. This article reviews results from a genetic strategy in the nematode Caenorhabditis elegans designed to identify the genes responsible for these activities. These studies identified mutations in genes encoding fi...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2004.05.005
更新日期:2004-07-01 00:00:00
abstract::Chronic pain is sustained by central neuronal sensitization, with many similar characteristics irrespective of the type of injury incurred. Nevertheless, pain arising from nerve injury (neuropathic pain) is resistant to centrally acting analgesics, whereas inflammatory pain responds well. New research indicates that t...
journal_title:Trends in neurosciences
pub_type: 杂志文章
doi:10.1016/j.tins.2004.03.014
更新日期:2004-06-01 00:00:00
abstract::How the brain becomes lateralized is poorly understood. By contrast, much is known about molecular cues that specify the left-right axis of the body, fashioning the asymmetric morphology and positioning of the visceral organs. In zebrafish, the Nodal signaling pathway functions in visceral asymmetry and also in the em...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/S0166-2236(03)00129-2
更新日期:2003-06-01 00:00:00
abstract::Huntington's disease (HD) is a fatal, inherited neurodegenerative disorder that gradually robs affected individuals of memory, cognitive skills and normal movements. Although research has identified a single faulty gene, the huntingtin gene, as the cause of the disease, a cure remains elusive. Strong evidence indicate...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2008.09.004
更新日期:2008-12-01 00:00:00
abstract::Release probability (P) appears to be a major factor that influences the pattern of transmitter release. At cortical pyramidal axon inputs onto different classes of target cells, very different release patterns are observed, patterns that correlate with release probability. Simplistically, 'low P' synapses display fac...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/s0166-2236(00)01580-0
更新日期:2000-07-01 00:00:00
abstract::The fast-acting ligand-gated ion channels (LGICs) constitute a group that encompasses nicotinic ACh, 5-HT3, GABAA and glycine receptors. Undoubtedly, they all share a common evolutionary ancestor, and the group can therefore be considered to be a gene superfamily. Because the members of the superfamily are all recepto...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/0166-2236(95)93887-4
更新日期:1995-03-01 00:00:00
abstract::Benzodiazepines are widely used clinically to treat anxiety and insomnia. They also induce muscle relaxation, control epileptic seizures, and can produce amnesia. Moreover, benzodiazepines are often abused after chronic clinical treatment and also for recreational purposes. Within weeks, tolerance to the pharmacologic...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2011.01.004
更新日期:2011-04-01 00:00:00
abstract::Despite extensive information on many aspects of peptide neurobiology, the links between the behavioral effects of neuropeptides and their actions at the cellular and molecular levels are not fully understood. A pair of insect neuropeptides, the cardioacceleratory peptides (CAPs) of the tobacco hawkmoth Manduca sexta,...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/0166-2236(91)90126-f
更新日期:1991-06-01 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::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
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2013.05.002
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
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::The intracellular concentration of free Ca2+ ([Ca2+]i) displays complex fluctuations in response to a variety of stimuli, and acts as a pluripotent signal for many neuronal functions. It is well established that various 'metabotropic' neurotransmitter receptors can mediate the mobilization of Ca2+ stores via actions o...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/0166-2236(95)93919-o
更新日期:1995-07-01 00:00:00
abstract::Short-term synaptic plasticity has a key role in information processing in the CNS, whereas memories can be formed through long-lasting changes in synaptic strength. Despite the importance of these phenomena, it remains difficult to determine whether a synaptic modulation is expressed at a presynaptic or postsynaptic ...
journal_title:Trends in neurosciences
pub_type: 杂志文章
doi:10.1016/s0166-2236(99)01520-9
更新日期:2000-03-01 00:00:00
abstract::Launching a new neuroscience laboratory requires knowledge of purchasing, budgeting and personnel management. The usual training of scientific investigators omits these areas, at a time when experimental complexity is growing and Internet-based commerce offers new purchasing options. This review highlights laboratory ...
journal_title:Trends in neurosciences
pub_type: 杂志文章
doi:10.1016/s0166-2236(02)02161-6
更新日期:2002-06-01 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::Integrins comprise a large family of heterodimeric proteins that mediate cell-cell and cell-extracellular-matrix adhesive connections. There is an extensive literature on their importance in neural development and cancer, but evidence for the existence of integrins in the adult CNS has emerged only recently. With grow...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/0166-2236(96)89623-8
更新日期:1996-02-01 00:00:00
abstract::Until recently, learning and memory in invertebrate organisms was believed to be mediated by relatively simple presynaptic mechanisms. By contrast, learning and memory in vertebrate organisms is generally thought to be mediated, at least in part, by postsynaptic mechanisms. But new experimental evidence from research ...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2003.09.014
更新日期:2003-12-01 00:00:00
abstract::Synaptic transmission and plasticity are shaped by the dynamic reorganization of signaling molecules within pre- and postsynaptic compartments. The nanoscale organization of key effector molecules has been revealed by single-particle trajectory (SPT) methods. Interestingly, this nanoscale organization is highly hetero...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2020.01.005
更新日期:2020-03-01 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::Behavioral evidence from phylogenetically diverse animals and from humans suggests that, by extracting temporal information inherent in the olfactory signal, olfaction is more involved in interpreting space and time than heretofore imagined. If this is the case, the olfactory system must have neural mechanisms capable...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2016.08.002
更新日期:2016-10-01 00:00:00
abstract::In the central nervous system (CNS) the function of retinoic acid, the active metabolite of vitamin A, is best understood from its action in guiding embryonic development; as development comes to completion, retinoic acid signaling declines. However, it is increasingly recognized that this signaling mechanism does not...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2012.08.005
更新日期:2012-12-01 00:00:00
abstract::Cholinergic interneurons have emerged as one of the key players controlling network functions in the striatum. Extracellularly recorded cholinergic interneurons acquire characteristic responses to sensory stimuli during reward-related learning, including a pause and subsequent rebound in spiking. However, the precise ...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2012.09.006
更新日期:2013-01-01 00:00:00
abstract::How did brains evolve to become so complex, and what is their future? Brains pose an explanatory challenge because entropy, which inexorably increases over time, is commonly associated with disorder and simplicity. Recently we showed how evolution is an entropic process, building structures - organisms - which themsel...
journal_title:Trends in neurosciences
pub_type: 杂志文章,评审
doi:10.1016/j.tins.2020.04.008
更新日期:2020-07-01 00:00:00