Induction of pituitary tumors in germ-free rats exposed to Aspergillus versicolor.

Abstract:

:We clarified the role of mold exposure in pituitary tumor induction using 53 germ-free Wistar rats exposed before birth and continually exposed thereafter, to Aspergillus versicolor alone. Rats were autopsied at 540 to 730 days. Untreated germ-free controls were autopsied on day 730. Thirty-three of the 53 monoassociated rats had pituitary tumors (62.3%), while only three of the 41 control germ-free rats had tumors (7.3%). It seems likely that this high incidence of pituitary tumor in the experimental rats is due to metabolites derived from the mold.

journal_name

Cancer Res

journal_title

Cancer research

authors

Sumi Y,Nagura H,Miyakawa M

subject

Has Abstract

pub_date

1990-01-15 00:00:00

pages

400-2

issue

2

eissn

0008-5472

issn

1538-7445

journal_volume

50

pub_type

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