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Relevant bibliographies by topics / Synaptic boutons

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Academic literature on the topic 'Synaptic boutons'

Author: Grafiati

Published: 9 September 2021

Last updated: 29 July 2025

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Journal articles on the topic "Synaptic boutons"

1

Pun, R. Y., E. A. Neale, P. B. Guthrie, and P. G. Nelson. "Active and inactive central synapses in cell culture." Journal of Neurophysiology 56, no. 5 (1986): 1242–56. http://dx.doi.org/10.1152/jn.1986.56.5.1242.

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Synaptic interactions between pairs of spinal cord (SC) neurons and between dorsal root ganglion neurons and SC neurons were studied in dissociated cell cultures prepared from fetal mouse. Combined injection of horseradish peroxidase into presynaptic neurons and Lucifer yellow into postsynaptic neurons allowed detailed correlation of morphological-physiological analyses of synaptically linked cells. Statistical analysis of trains of evoked EPSPs under conditions of high and of low transmitter output was used to determine the number of physiological release elements, n, involved in a given syna

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Batulevičius, Darius, Gertrūda Skripkienė, Denas Andrijauskis, Berta Kėrytė, and Valdas Skripka. "Quantitative study of synaptic boutons on frog intracardiac neurons." Papers on Anthropology 26, no. 2 (2017): 17. http://dx.doi.org/10.12697/poa.2017.26.2.02.

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The frog is a useful model to study the structure and function of intracardiac neurons. The goal of this study was to evaluate the size and distribution of synaptic boutons on the intracardiac neurons in the frog Rana temporaria. Interatrial septa from four animals were double-labelled immunohistochemically for the cholinergic marker choline acetyltransferase (ChAT) and the marker of synaptic vesicles synaptophysin (SYP). One hundred intracardiac neurons were analysed by confocal microscopy. Terminals of preganglionic axons were strongly positive for ChAT, while synaptic boutons were strongly

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Bennett, M. R. "Synaptic Transmission at Single Boutons in Sympathetic Ganglia." Physiology 15, no. 2 (2000): 98–101. http://dx.doi.org/10.1152/physiologyonline.2000.15.2.98.

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Synaptic transmission has traditionally been studied at the level of the entire nerve terminal rather than at one of its constituent boutons. Autonomic ganglia provide preparations for recording from individual boutons, as well as for determining the calcium transients necessary for transmitter release at these boutons. The results suggest a new paradigm for synaptic transmission.

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Akbergenova, Yulia, and Maria Bykhovskaia. "Stimulation-Induced Formation of the Reserve Pool of Vesicles in Drosophila Motor Boutons." Journal of Neurophysiology 101, no. 5 (2009): 2423–33. http://dx.doi.org/10.1152/jn.91122.2008.

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We combined electron microscopy (EM), synaptic vesicle staining by fluorescent marker FM1-43, photoconversion of the dye into an electron dense product, and electrical recordings of synaptic responses to study the distribution of reserve and recycling vesicles and its dependence on stimulation in Drosophila motor boutons. We showed that, at rest, vesicles are distributed over the periphery of the bouton, with the recycling and reserve pools being intermixed and the central core of the bouton being devoid of vesicles. Continuous high-frequency stimulation followed by a resting period mobilized

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Mueller, Nancy K., Shi Di, Charles M. Paden, and James P. Herman. "Activity-Dependent Modulation of Neurotransmitter Innervation to Vasopressin Neurons of the Supraoptic Nucleus." Endocrinology 146, no. 1 (2005): 348–54. http://dx.doi.org/10.1210/en.2004-0539.

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Confocal microscopy was used to assess activity-dependent neuroplasticity in neurotransmitter innervation of vasopressin immunoreactive magnocellular neurons in the supraoptic nucleus (SON). Vesicular glutamate transporter 2, glutamic acid decarboxylase, and dopamine β-hydroxylase (DBH) synaptic boutons were visualized in apposition to vasopressin neurons in the SON. A decrease in DBH synaptic boutons per cell was seen upon salt loading, indicating diminished noradrenergic/adrenergic innervation. Loss of DBH appositions to vasopressin neurons was associated with a general loss of DBH immunorea

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Beumer, K. J., J. Rohrbough, A. Prokop, and K. Broadie. "A role for PS integrins in morphological growth and synaptic function at the postembryonic neuromuscular junction of Drosophila." Development 126, no. 24 (1999): 5833–46. http://dx.doi.org/10.1242/dev.126.24.5833.

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A family of three position-specific (PS) integrins are expressed at the Drosophila neuromuscular junction (NMJ): a beta subunit ((betaPS), expressed in both presynaptic and postsynaptic membranes, and two alpha subunits (alphaPS1, alphaPS2), expressed at least in the postsynaptic membrane. PS integrins appear at postembryonic NMJs coincident with the onset of rapid morphological growth and terminal type-specific differentiation, and are restricted to type I synaptic boutons, which mediate fast, excitatory glutamatergic transmission. We show that two distinctive hypomorphic mutant alleles of th

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Yakoubi, Rachida, Astrid Rollenhagen, Marec von Lehe, Yachao Shao, Kurt Sätzler, and Joachim H. R. Lübke. "Quantitative Three-Dimensional Reconstructions of Excitatory Synaptic Boutons in Layer 5 of the Adult Human Temporal Lobe Neocortex: A Fine-Scale Electron Microscopic Analysis." Cerebral Cortex 29, no. 7 (2018): 2797–814. http://dx.doi.org/10.1093/cercor/bhy146.

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Abstract Studies of synapses are available for different brain regions of several animal species including non-human primates, but comparatively little is known about their quantitative morphology in humans. Here, synaptic boutons in Layer 5 (L5) of the human temporal lobe (TL) neocortex were investigated in biopsy tissue, using fine-scale electron microscopy, and quantitative three-dimensional reconstructions. The size and organization of the presynaptic active zones (PreAZs), postsynaptic densities (PSDs), and that of the 3 distinct pools of synaptic vesicles (SVs) were particularly analyzed

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Peterson, R. Scott, Lakshmi Yarram, Barney A. Schlinger, and Colin J. Saldanha. "Aromatase is pre-synaptic and sexually dimorphic in the adult zebra finch brain." Proceedings of the Royal Society B: Biological Sciences 272, no. 1576 (2005): 2089–96. http://dx.doi.org/10.1098/rspb.2005.3181.

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Oestrogens organize and activate circuits within the vertebrate central nervous system. Oestrogen synthesis occurs via the expression of aromatase, a P 450 enzyme detected in microsomes and more recently in pre-synaptic boutons. Synaptic aromatase has only been described in brain regions that express aromatase in many subcellular compartments, so its function remains poorly understood. To more thoroughly study the role of oestrogen synthesis at synaptic terminals, we examined the ultrastructural compartmentalization of aromatase in the zebra finch; a species in which high aromatase activity ca

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Cheng, Ling, Cody Locke, and Graeme W. Davis. "S6 kinase localizes to the presynaptic active zone and functions with PDK1 to control synapse development." Journal of Cell Biology 194, no. 6 (2011): 921–35. http://dx.doi.org/10.1083/jcb.201101042.

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The dimensions of neuronal dendrites, axons, and synaptic terminals are reproducibly specified for each neuron type, yet it remains unknown how these structures acquire their precise dimensions of length and diameter. Similarly, it remains unknown how active zone number and synaptic strength are specified relative the precise dimensions of presynaptic boutons. In this paper, we demonstrate that S6 kinase (S6K) localizes to the presynaptic active zone. Specifically, S6K colocalizes with the presynaptic protein Bruchpilot (Brp) and requires Brp for active zone localization. We then provide evide

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Prume, Miriam, Astrid Rollenhagen, Rachida Yakoubi, Kurt Sätzler, and Joachim Hr Lübke. "Quantitative Three-Dimensional Reconstructions of Excitatory Synaptic Boutons in the “Barrel Field” of the Adult “Reeler” Mouse Somatosensory Neocortex: A Comparative Fine-Scale Electron Microscopic Analysis with the Wild Type Mouse." Cerebral Cortex 30, no. 5 (2019): 3209–27. http://dx.doi.org/10.1093/cercor/bhz304.

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Abstract Synapses are key structural determinants for information processing and computations in the normal and pathologically altered brain. Here, the quantitative morphology of excitatory synaptic boutons in the “reeler” mutant, a model system for various neurological disorders, was investigated and compared with wild-type (WT) mice using high-resolution, fine-scale electron microscopy (EM) and quantitative three-dimensional (3D) models of synaptic boutons. Beside their overall geometry, the shape and size of presynaptic active zones (PreAZs) and postsynaptic densities (PSDs) forming the act

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Dissertations / Theses on the topic "Synaptic boutons"

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Shermadou, Esra Salah. "C-Bouton Coverage of Alpha-motoneurons Following PeripheralNerve Injury." Wright State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=wright1374965278.

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Feoktistov, Alexander. "Setting the Limit on Axon Growth: Multiple Overlapping Mechanisms Repress the MAP3K Wnd/DLK So That Growth Cones Can Remodel into Stationary Synaptic Boutons." Thesis, University of Oregon, 2016. http://hdl.handle.net/1794/20403.

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The development of a stereotyped pattern of neural connectivity depends upon the behavior of growth cones, motile structures at the tips of axons that propel axon growth and steer the axon to its targets. When growth cones reach their appropriate target cells, they halt and ultimately remodel into stationary presynaptic boutons. The influence of extracellular cues in directing growth cones to their targets is well studied, but cell-intrinsic factors are also increasingly appreciated for their role in driving much of growth cone behavior. Dual leucine zipper kinases (DLKs) promote growth co

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D'Arcy, Kevin. "A study of the inter-bouton exchange of synaptic vesicles at central synapses." Thesis, University College London (University of London), 2006. http://discovery.ucl.ac.uk/1444601/.

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Neurotransmitter release at central synapses is sustained by the synaptic vesicle cycle. It has been assumed that vesicle replenishment operates autonomously at individual presynaptic terminals. In this study the classical model of a compartmentalized synaptic vesicle cycle was tested by using a novel combination of FRAP (fluorescence recovery after photobleaching) and CLEM (correlative light and electron microscopy) in cultured hippocampal neurons. The stability of vesicle clusters labelled with fluorescent styryl dye at individual synapses were assessed by photobleaching using a confocal las

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Singh, Neetu Elefant Felice. "ELP3 plays an active role in synaptic bouton expansion and sleep in Drosophila /." Philadelphia, Pa. : Drexel University, 2009. http://hdl.handle.net/1860/3165.

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Panchumarthi, Sarvari. "The Drosophila Serrate is Required for Synaptic Structure and Function at Larval Neuromuscular Junctions." Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/194269.

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Drosophila melanogaster is an excellent model system to identify genes involved in synaptic growth and function. In Drosophila, the Serrate (Ser) gene encodes a transmembrane protein that is a ligand for Notch receptor. Several previous studies implicated a role for Serrate in normal wing development and patterning. In this study, I demonstrate that Serrate is required for normal synaptic growth and function. I characterized the phenotype of a Serrate mutation (serB936) that was identified by an EMS-induced genetic screen aimed at identifying novel genes that play a role in synaptic growth and

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Robertson, A. D. "A study of ion channels modulating synaptic transmission using a cerebellar Purkinje cell nerve-bouton preparation." Thesis, University College London (University of London), 2012. http://discovery.ucl.ac.uk/1338989/.

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In this thesis a nerve-bouton preparation of Purkinje cells has been characterised. Mechanically isolated Purkinje cells are shown to retain active afferent nerve terminals. This provides a simplified system where the effects of manipulating the ion channels in nerve boutons can be studied without the potentially confounding influences of the rest of the presynaptic cell or surrounding tissue. Isolated Purkinje cells were initially identified for whole cell patch-clamp recordings by their distinctive size and shape. Vesicular release of neurotransmitter was evident by spontaneous inward synapt

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Wienisch, Martin. "Visualization of synaptic vesicle protein recycling during exo-endocytosis at individual hippocampal boutons." Doctoral thesis, 2006. http://hdl.handle.net/11858/00-1735-0000-0006-B5E8-3.

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Tran, Le Thuy Van. "Dynamics of evoked and spontaneous calcium transients in synaptic boutons of neocortical pyramidal neurons." Phd thesis, 2017. http://hdl.handle.net/1885/133756.

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In response to an action potential (AP), a transient rise in the intracellular calcium concentration ([Ca2+]i) causes transmitter release from nerve terminals. As the spatiotemporal dynamics of this calcium rise can affect the efficacy and plasticity of synaptic connections, it is essential to understand their determinants. To characterise factors that shape calcium transients in neocortical synaptic boutons, layer 5 pyramidal cells in the rat somatosensory cortex were filled through the patch pipette with a fluorescent calcium indicator for the measurement of [Ca2+]i. For accurate calculation

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Wienisch, Martin [Verfasser]. "Visualization of synaptic vesicle protein recycling during exo-endocytosis at individual hippocampal boutons / submitted by Martin Wienisch." 2006. http://d-nb.info/982005903/34.

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Silva, Marta Contreiras da. "In vivo mechanisms of synaptic bouton formation: Dissecting the role of the exocyst." Master's thesis, 2018. http://hdl.handle.net/10362/53054.

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RESUMO: A regulação de estruturas sinápticas é crítica para o normal funcionamento neuronal. A morfologia neuronal é geneticamente determinada, mas pode ser modificada por alterações de actividade sináptica, um processo chamado plasticidade estrutural. Botões sinápticos são especializações presinápticas conservadas onde se localizam as sinapses. Apesar da sua importância, os mecanismos que regulam a sua formação são desconhecidos. A junção neuromuscular de Drosophila melanogaster é uma sinapse estereotipada e bem caracterizada, onde plasticidade estrutural pode ser induzida. Após indução, novo

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Books on the topic "Synaptic boutons"

1

Kurshan, Peri Tamar. The role of Alpha2delta-3 in calcium-channel localization, synaptic function and bouton formation. 2010.

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Book chapters on the topic "Synaptic boutons"

1

Melamed-Book, Naomi, and Rami Rahamimoff. "Calcium Confocal Microscopy of Single Synaptic Boutons." In Neutrotransmitter Release and Uptake. Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-642-60704-2_4.

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Harris, Kristen M., John C. Fiala, and Linnaea Ostroff. "Structural changes at dendritic spine synapses during long-term potentiation." In Long-term Potentiation: Enhancing Neuroscience for 30 years. Oxford University PressOxford, 2004. http://dx.doi.org/10.1093/oso/9780198530305.003.0019.

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Abstract Two key hypotheses about the structural basis of long-term potentiation (LTP) are evaluated in light of new findings from immature rat hippocampal slices. First, it is shown why dendritic spines do not split during LTP. Instead a small number of spine-like dendritic protrusions may emerge to enhance connectivity with potentiated axons. These ’same dendrite multiple synapse boutons’ provide less than a 3% increase in connectivity and do not account for all of LTP or memory, as they do not accumulate during maturation. Second, polyribosomes in dendritic spines served to identify which o

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M.C. Bastos, Fatima, Carlos M. Matias, Ines O. Lopes, et al. "FAD-Linked Autofluorescence and Chemically-Evoked Zinc Changes at Hippocampal Mossy Fiber-CA3 Synapses." In Hippocampus - Cytoarchitecture and Diseases. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.100898.

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Glutamatergic vesicles in hippocampal mossy fiber presynaptic boutons release zinc, which plays a modulatory role in synaptic activity and LTP. In this work, a fluorescence microscopy technique and the fluorescent probe for cytosolic zinc, Newport Green (NG), were applied, in a combined study of autofluorescence and zinc changes at the hippocampal mossy fiber-CA3 synaptic system. In particular, the dynamics of flavoprotein (FAD) autofluorescence signals, was compared to that of postsynaptic zinc signals, elicited both by high K+ (20 mM) and by tetraethylammonium (TEA, 25 mM). The real zinc sig

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