Effects of lead on structures of zebrafish intestine and oocytes

Abstract

This study aimed to assess the effects of lead exposure on structure of intestine and oocytes of zebrafish. Zebrafish were exposed to lead in various concentration at 0.1 µg/l, 1 µg/l, 10 µg/l, 20 µg/l, 100 µg/l. The results demonstrated that zebrafish from lead treatment group exposed the modification structure of intestine, by an increase of intestinal villi and cell number. Lead treatment induced the reduction of lipid droplet number in zebrafish oocytes. However, the increased lead concentration was resulted in the increase of lipid droplet in zebrafish oocytes. These results revealed that lead exposure can give rise to the abnormality on structure of intestine and oocytes of zebrafish.