See Also: Fibiger, Johannes Andreas Grib(encyclopedia)
Brinkman, Johannes Andreas(encyclopedia)
spiral cleavage(medicine)
Vesalius, Andreas(encyclopedia)
Andreas (as used in expressions)(encyclopedia)
Vesalius, Andreas(medicine)
Andreas Clinic(health)
San Andreas fault(dictionary)
San Andreas Fault(encyclopedia)
Papandreou, Andreas (Georgios)(encyclopedia)

Fibiger, Johannes Andreas Grib (sh) and spiral cleavage (medicine)


Fibiger, Johannes Andreas Grib (sh)




born April 23, 1867, Silkeborg, Den.
died Jan. 30, 1928, Copenhagen

Danish pathologist.

He found that rats that had suffered stomach-tissue inflammation caused by the larvae of a worm infecting cockroaches the rats had eaten subsequently developed stomach tumours, and he induced tumours in mice and rats by feeding them infected cockroaches. His work, for which he received a 1926 Nobel Prize, supported the prevailing concept that cancer is caused by tissue irritation and led to production of chemical carcinogens for use in cancer research.


spiral cleavage (medicine)


spiral cleavage
<marine biology> Pattern of early cleavage found in molluscs and annelids (both mosaic eggs).

The animal pole blastomeres are rotated with respect to those of the vegetal pole. The handedness of the spiral twist is maternally inherited.