>>13108324>>13108341>In this study, zebrafish were exposed to 0, 0.3, 3, or 30 parts per billion (ppb) atrazine through embryogenesis and then allowed to mature with no additional chemical exposure. Reproductive function, histopathology, hormone levels, offspring morphology, and the ovarian transcriptome were assessed. Embryonic atrazine exposure resulted in a significant increase in progesterone levels in the 3 and 30ppb groups. A significant decrease in spawning and a significant increase in follicular atresia in the 30ppb group were observed. In offspring, a decrease in the head length to body ratio in the 30ppb group, along with a significant increase in head width to body ratio in the 0.3 and 3ppb groups occurred. Transcriptomic alterations involved genes associated with endocrine system development and function, tissue development, and behavior. This study provides evidence to support atrazine as an EDC causing reproductive dysfunction and molecular alterations in adults exposed only during embryogenesis and morphological alterations in their offspring.https://www.nature.com/articles/srep21337>This study evaluated the effects of three dosages of atrazine on sperm parameters of adult Calomys laucha males. [..] Results suggest that exposure to low dosages of atrazine can affect sperm parameters of Calomys laucha and therefore reduce the reproductive capacity of wild rodent species.(link to study can't be posted on 4chan, google "Low atrazine dosages reduce sperm quality of Calomys laucha mice"
