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  • Pigmentary staining of skin caused by circumscribed scleroderma
  • Diagnostic test for Fragile X, using presence (normal) or absence (Fragile X syndrome) of FMR-1 protein. FMR-1 protein expression in blood cells has been made visible with antibodies against the FMR-1 protein. The presence of FMR-1 protein is made visible as red staining. a: red staining in cells of normal individual. b/c: absence of staining in male patient. d: female patient; one cell is showing staining and in the other cell there is an absence of staining - this individual is a carrier.
  • Face of a man with peculiar staining of the skin, caused by melanotic sarcomata
  • Hands of a man with peculiar staining of the skin, caused by melanotic sarcomata
  • Elevation of a paper mill (top), elevation of the equipment for staining papers (bottom): both lettered for a key. Engraving by S. Porter, 1806, after J. Farey the younger.
  • Elevation of a iron mill (top), elevation of the equipment for staining papers (bottom): both lettered for a key. Engraving by S. Porter, 1806, after J. Farey the younger.
  • Neurons derived from human neural stem cells. The green staining highlights the typical appearance of differentiated nerve cells. Cells such as these could form the basis of future treatments for degenerative brain diseases such as Parkinson's and Alzheimer's.
  • Johann Staininger, a man with a very long beard. Aquatint.
  • Johann Staininger, a man with a very long beard. Line engraving, 1814.
  • Johann Staininger, a man with a very long beard. Line engraving, 1814.