File:Phagocytose Entamoeba gingivalis-PMN.ogv

Phagocytose_Entamoeba_gingivalis-PMN.ogv(Ogg multiplexed audio/video file, Theora/Vorbis, length 1 min 58 s, 640 × 480 pixels, 1.03 Mbps overall, file size: 14.49 MB)

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Français : L'activité principale de l'amibe Entamoeba gingivalis dans les crevasses parodontales infectées, en plus de se déplacer, consiste à se nourrir des noyaux des globules blancs polymorphonucléaires neutrophiles. Suite a l'adhésion du PMN et à son engourdissement, l'amibe pénètre le cytoplasme pour atteindre le noyau et littéralement succionner son contenu via la pression négative du pseudopode. Sa nourriture ainsi ingurgitée est digérée progressivement a l'intérieur de l'endoplasme. Cette activié peut parfois se poursuivre pour plus de 20 noyaux ingurgités. Cette activité laisse en place un PMN dénuclé, incapable d'accomplir son apoptose préprogrammée et probablement son activité NETS, qui sera déversé sur les tissus environnants entrainant des enzymes protéolytiques à partir des restes de cette cellule fantôme des lors hors controle et capable alors de destruction cellulaire.
Date
Source Own work
Author Mark Bonner dmd, Institut International de Parodontie, www.parodontite.com

Mark Bonner dmd Institut International de Parodontie www.parodontite.com

Media of the day This file was selected as the media of the day for 07 January 2014. It was captioned as follows:
English: Amoeba Entamoeba gingivalis feeds on the nuclei of white blood cells.
Other languages
English: Amoeba Entamoeba gingivalis feeds on the nuclei of white blood cells.
中文(简体):一变形虫(Entamoeba gingivalis)通过伪足移动细胞内容物

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Date/TimeThumbnailDimensionsUserComment
current16:37, 21 December 20131 min 58 s, 640 × 480 (14.49 MB)Mark Bonner dmd (talk | contribs)User created page with UploadWizard

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Format Bitrate Download Status Encode time
VP9 480P 772 kbps Completed 15:49, 13 October 2018 2 min 28 s
Streaming 480p (VP9) Not ready Unknown status
VP9 360P 482 kbps Completed 15:49, 13 October 2018 1 min 50 s
Streaming 360p (VP9) Not ready Unknown status
VP9 240P 344 kbps Completed 15:49, 13 October 2018 1 min 37 s
Streaming 240p (VP9) 196 kbps Completed 20:21, 5 December 2023 1.0 s
WebM 360P 540 kbps Completed 14:25, 9 February 2017 2 min 34 s
Streaming 144p (MJPEG) 1.01 Mbps Completed 19:54, 18 November 2023 4.0 s
Stereo (Opus) 147 kbps Completed 08:35, 22 November 2023 2.0 s
Stereo (MP3) 128 kbps Completed 19:54, 18 November 2023 4.0 s

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