Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Synaptic ribbons"”.
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Precision and reliability of cochlear nerve response in mice lacking functional synaptic ribbons
Synaptic ribbons are electron-dense structures surrounded by vesicles and anchored to the presynaptic membrane of photoreceptors, retinal bipolar cells and hair cells. Ribbon synapses are characterized by sustained exocytosis that is graded with stimulus intensity and can achieve high release …
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Ηλεκτρονική μικροσκοπία της ανθρώπινης επίφυσης (κωναρίου): Συγκριτική μελέτη στις διάφορες ηλικίες
… organelles which are unique to the pineal (e.g. synaptic spherules, microtubular sheaves) or characteristic for the pineocyte and a few other cell types (e.g. synaptic ribbons). These organelles were not described in the human embryonic pineal. The function of microtubular sheaves is not known …
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Synapse Formation in the Zebrafish Lateral Line
… little is understood regarding how pre- and postsynaptic partners are matched for synapse formation. The zebrafish lateral line offers the opportunity for greater insight into this process. Hair cells in the lateral-line neuromast exist as two intermingled subpopulations, anteriorly and …
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Primary neuronal degeneration in the guinea pig effects on spontaneous rate-type
… counted after immunostaining for juxtaposed pre-synaptic ribbons and post-synaptic glutamate receptor patches in the inner hair cell area. The observed 20% synapse loss throughout the basal half of the cochlea was consistent with the physiological data. Analysis of synaptic morphology suggested …
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"Bruchpilot" -molecular and functional characterization of a novel active zone protein at the Drosophila synapse
… proteins for its successful execution. Several synaptic proteins have been shown to be relevant for neurotransmission and many of them are highly conserved during evolution- suggesting a universal mechanism for neurotransmission. This process has checkpoints at various places like, …
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Synaptic Specificity in the Zebrafish Lateral Line
… billions of neurons to select their appropriate synaptic targets. In view of this complexity, simple vertebrate systems provide necessary models for understanding how synaptic specificity arises. The posterior lateral-line organ of larval zebrafish consists of polarized hair cells organized in …
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The Functional Organization of Synaptic Vesicle Pools In A Retinal Bipolar Neuron
… by ‘ribbon-like’ organelles that tether synaptic vesicles. The synaptic ribbons co-localize with sites of calcium entry and vesicle fusion, forming ribbon-style active zones. The ability of ribbon synapses to maintain rapid and sustained neurotransmission is critical for vision, hearing …
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Vergleichend feinstrukturelle Untersuchungen an der Netzhaut der Europäischen Sardelle Engraulis encrasicolus L. (Engraulididae) und den Retinae anderer Clupeiformes
… die der langen. Letztere haben zwei Gruppen von „synaptic ribbons“, während bei den kurzen Zapfen keine eindeutige Gliederung in Synapsenfelder festzustellen ist. Aufgrund der radialen Lage und der Zellmuster können drei Typen von Horizontalzellen unterschieden werden. Für eine H1-Zelle wurde der …
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CANNABINOID RECEPTORS (CB) IN COCHLEA: CHARACTERIZATION AND OTOPROTECTIVE FUNCTIONS
… against cisplatin-induced loss of hair cell and synaptic ribbons. In-vitro studies in UB/OC-1 cells demonstrated that pre-treatment of JWH-015 modulates the activities of signal transducer and activator of transcription 1 and 3 (STAT1 and STAT3), increases the expression of anti-apoptotic protein …