Loading…
Development of a pig jejunal explant culture for studying the gastrointestinal toxicity of the mycotoxin deoxynivalenol: Histopathological analysis
The digestive tract is a target for the mycotoxin deoxynivalenol (DON), a major cereals grain contaminant of public health concern in Europe and North America. Pig, the most sensitive species to DON toxicity, can be regarded as the most relevant animal model for studying the intestinal effects of DO...
Saved in:
Published in: | Toxicology in vitro 2009-12, Vol.23 (8), p.1580-1584 |
---|---|
Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | The digestive tract is a target for the mycotoxin deoxynivalenol (DON), a major cereals grain contaminant of public health concern in Europe and North America. Pig, the most sensitive species to DON toxicity, can be regarded as the most relevant animal model for studying the intestinal effects of DON.
A pig jejunal explants culture was developed to assess short-term effects of DON. In a first step, jejunal explants from 9–13
week-old and from 4–5
week-old pigs were cultured
in vitro for up to 8
h. Explants from younger animals were better preserved after 8
h, as assessed by morphological scores and by villi lengths. In a second step, DON dose-related alterations of the jejunal tissue were observed, including shortened and coalescent villi, lysis of enterocytes, oedema. After 4
h of DON exposure of explants from 4–5 week-old pigs, a no-effect concentration level of 1
μM was estimated (corresponding to diet contaminated with 0.3
mg DON/kg) based on morphological scores, and of 0.2
μM based on villi lengths.
In conclusion, our data indicate that pig intestinal explants represent a relevant and sensitive model to investigate the effects of food contaminants. |
---|---|
ISSN: | 0887-2333 1879-3177 |
DOI: | 10.1016/j.tiv.2009.07.015 |