B. Cellular pathology

• cellular physiology
  27 January 2018

  Definition : Cell physiology is the biological study of the activities and the functions that take place in a cell to keep it alive.
  The term "physiology" refers to all the normal functions that take place in a living organism.
  All of these activities in the cell could be counted as following ; nutrition , environmental response , cell growth , cell division , reproduction and differentiation.
  The differences among the animal cells , plant cells and unicellualr microorganisms shows the (...)

• stress granules
  21 August 2017

  Stress Granule
  Cytoplasmic stress granules (SGs) are critical for facilitating stress responses and for preventing the accumulation of misfolded proteins.
  Oxidative stress is one of the conditions that induce SG formation. SGs regulate redox levels, and SG formation in turn is differently regulated by various types of oxidative stress.
  Pathology
  SGs have been linked to the pathogenesis of neurodegenerative diseases, in part because SGs share many components with neuronal granules. (...)

• clear cytoplasm
  19 August 2017

  clear cytoplasm / clear cell change
  Pathology
  clear cell change : voluminous clear cytoplasm. clear cell tumors / clear cell tumoral cells example : clear cell renal cell carcinoma / clear cell RCC

• clear cell change
  19 August 2017

  clear cytoplasm / clear cell change
  Definition : voluminous clear cytoplasm.

• anomalies of cell size
  19 August 2017

  Cell sizes
  small cells
  medium-size cells
  large cells
  Pathology
  cellular hypertrophy / cell hypertrophy
  In tumors
  small cell tumors Example: small blue round cell tumors (SBRT)
  medium-size cell tumors
  large cell tumors Example: large cell lymphomas
  See also
  anomalies
  cell size

• biosystems
  14 June 2017

  biological systems WKP
  Definition: A biological system is a complex network of biologically relevant entities.
  As biological organization spans several scales, examples of biological systems are populations of organisms, or on the organ- and tissue scale in mammals and other animals, the circulatory system , the respiratory system , the nervous system , etc.
  On the micro to the nanoscopic scale, examples of biological systems are cells , organelles , macromolecular complexes and (...)

• cellular secretion
  14 June 2017

  cell secretion WKP
  Cell secretion
  The classical mechanism of cellular secretion is via secretory portals at the cell plasma membrane called porosomes.
  Porosomes are permanent cup-shaped lipoprotein structure at the cell plasma membrane, where secretory vesicles transiently dock and fuse to release intra-vesicular contents from the cell.
  See also
  secretion
  excretion

• cellular changes
  13 June 2017

  phenotypic change
  Examples
  clear cell change
  oncocytic-like change
  rhabdoid change
  metaplasia : cellular metaplasia / tissualr metaplasia squamous metaplasia osseous metaplasia
  See also
  cellular changes

• oncocytic-like change
  13 June 2017

  oncocytic-like cells
  Synopsis
  large cells
  polygonal cells
  eosinophilic granular cytoplasm
  round hyperchromatic nuclei
  cherry red nucleoli / prominent nucleoli
  See also
  cellular changes

• signet-ring-like cells
  13 June 2017

  signet-ring-like appearance; pseudo-signet-ring cells
  Images
  Mucosal injury leads to slough of benign mucinous cells. Beware of pseudosignet ring cells in polyps, stomach, and pseudomembranous colitis https://twitter.com/RhondaYantiss/status/876834829794455552
  Examples
  signet-ring cells

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