File:An-Excitatory-Loop-with-Astrocytes-Contributes-to-Drive-Neurons-to-Seizure-Threshold-pbio.1000352.s008.ogv
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An-Excitatory-Loop-with-Astrocytes-Contributes-to-Drive-Neurons-to-Seizure-Threshold-pbio.1000352.s008.ogv (Ogg Theora video file, length 26 s, 198 × 254 pixels, 787 kbps, file size: 2.44 MB)
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[edit]DescriptionAn-Excitatory-Loop-with-Astrocytes-Contributes-to-Drive-Neurons-to-Seizure-Threshold-pbio.1000352.s008.ogv |
English: Response of astrocytes to ictal and interictal discharges in EC slices. This video shows the synchronous Ca2+ increase in EC neurons after slice perfusion with picrotoxin/zero-Mg2+ that reflects an interictal and an ictal discharge (as reported in Figure 1A and 1B). Note that at the beginning of the video there is an interictal discharge that activates only one astrocyte. A subsequent ictal discharge evokes a large and synchronous Ca2+ response in most astrocytes (indicated by the arrowheads in the first frame). In the final part of the video, synchronous, repetitive Ca2+ elevations in neurons reflect the afterdischarges typical of the late ictal phase. Time frame, 314 ms. |
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Source | Video S1 from Gómez-Gonzalo M, Losi G, Chiavegato A, Zonta M, Cammarota M, Brondi M, Vetri F, Uva L, Pozzan T, de Curtis M, Ratto G, Carmignoto G (2010). "An Excitatory Loop with Astrocytes Contributes to Drive Neurons to Seizure Threshold". PLOS Biology. DOI:10.1371/journal.pbio.1000352. PMID 20405049. PMC: 2854117. | ||
Author | Gómez-Gonzalo M, Losi G, Chiavegato A, Zonta M, Cammarota M, Brondi M, Vetri F, Uva L, Pozzan T, de Curtis M, Ratto G, Carmignoto G | ||
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current | 16:25, 16 November 2012 | 26 s, 198 × 254 (2.44 MB) | Open Access Media Importer Bot (talk | contribs) | Automatically uploaded media file from Open Access source. Please report problems or suggestions here. |
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Usage terms | http://creativecommons.org/licenses/by/3.0/ |
Image title | Response of astrocytes to ictal and interictal discharges in EC slices. This video shows the synchronous Ca2+ increase in EC neurons after slice perfusion with picrotoxin/zero-Mg2+ that reflects an interictal and an ictal discharge (as reported in Figure 1A and 1B). Note that at the beginning of the video there is an interictal discharge that activates only one astrocyte. A subsequent ictal discharge evokes a large and synchronous Ca2+ response in most astrocytes (indicated by the arrowheads in the first frame). In the final part of the video, synchronous, repetitive Ca2+ elevations in neurons reflect the afterdischarges typical of the late ictal phase. Time frame, 314 ms. |
Software used | Xiph.Org libtheora 1.1 20090822 (Thusnelda) |
Date and time of digitizing | 2010-04 |