Arthur Biedl

Arthur Biedl (4 October 1869 – 26 August 1933) was a Hungarian pathologist born in what today is Comloșu Mic, Romania.

In 1898, Biedl and colleague R. Kraus demonstrated that "bile salts," when injected into the bloodstream of animals, failed to elicit a behavioral change.

They hypothesized that this was due to a semipermeable membrane that protected the central nervous system from the passive diffusion of solutes in the bloodstream.

Edwin Goldmann and his mentor Paul Ehrlich further confirmed these findings with aniline dyes injected inside and outside of the brain.

A similar disease was originally named the "Laurence–Moon–Bardet–Biedl syndrome", together with two English physicians, John Zachariah Laurence (1829–1870) and Robert Charles Moon (1845–1914).