Biology videos

Articles

• Xenopus laevis development
  8 March 2007

  Videos
  neurulation in Xenopus laevis
  cardiac development in Xenopus laevis

• uterine adenomyosis
  25 June 2007

  uterine adenomyosis PO
  Definition: Uterine adenomyosis is defined as the presence of endometrial tissue within the myometrium. The endometrial tissue should be at least 100x field (about 2.5 mm) deep from the endomyometrial junction. The surrounding myometrium is usually hyperplastic. The endometrial glands may be inactive or hormonally responsive. In some cases, the glands are scant or absent and such cases may be mistaken for low-grade endometrial stromal sarcoma.
  Images (...)

• lymphocyte-mediated cytotoxicity
  16 February 2006

  See also
  cytotoxicity
  lytic granules (cytotoxic granules)
  CD8+ cytotoxic lymphocytes
  cytotoxic granule-mediated apoptosis
  Videos
  T-cell mediated cytotoxicity
  References
  Hong W. Cytotoxic T lymphocyte exocytosis: bring on the SNAREs! Trends Cell Biol. 2005 Dec;15(12):644-50. PMID: #16260137#
  Raja SM, Metkar SS, Froelich CJ. Cytotoxic granule-mediated apoptosis: unraveling the complex mechanism. Curr Opin Immunol. 2003 Oct;15(5):528-32. PMID: #14499261#
  de Saint Basile G, (...)

• acral melanoma
  25 February 2010

  Sequencing
  Video : Comparison of primary and metastatic acral melanoma by whole genome sequencing.
  CGH
  When compared to the most frequent melanoma type (superficial spreading melanoma or SSM), melanomas on acral skin invariably showed gene amplifications.
  The amplified regions in acral melanomas frequently contain known oncogenes such as HRAS, cyclin D1, CDK4, HTERT, but also involve regions without obvious candidate genes.
  Amplifications were defined as focused chromosomal regions (...)

• rolling
  9 March 2007

  leukocyte rolling

• enzymes
  8 March 2004

  Pathology
  enzyme diseases (enzyme defects)
  Videos

• transmembrane gradients
  8 March 2007

  electrochemical gradient

• transgenetics
  28 May 2004

  transgenesis

• endosomes
  26 January 2005

  An endosome is a membrane-bound compartment inside cells, roughly 300-400 nm in diameter when fully mature (WP).
  Many endocytotic vesicles derived from the plasma membrane are transported to an endosome and fuse with it. Some endocytosed material passes through endosomes on its way to lysosomes.
  Endosomes are, in part, responsible for the sorting of endocytosed material before transport to lysosomes. This allows some material to be returned to the plasma membrane.
  Types (...)

• lipid bilayer
  9 March 2007

  fluid membrane bilayer

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