The electrophoretic analysis of low molecular weight nucleic acids from Crohn's disease tissues in the search for an unconventional small infectious agent. Brief report.

A small unconventional, viroid-like aetiological agent might initiate Crohn's disease (CD). Electrophoresis of radiolabelled low molecular weight nucleic acids from mesenteric lymph nodes and leucocytes did not distinguish CD-specific sequences compatible with a viroid-like agent.