scholarly journals Sperm telomere length is positively associated with the quality of early embryonic development

2015 ◽  
Vol 30 (8) ◽  
pp. 1876-1881 ◽  
Author(s):  
Qingling Yang ◽  
Feifei Zhao ◽  
Shanjun Dai ◽  
Nan Zhang ◽  
Wanli Zhao ◽  
...  
Keyword(s):  
Embryonic Development ◽  
Telomere Length ◽  
Early Embryonic Development ◽  
Sperm Telomere Length

Oxidative stress induced by methomyl exposure reduces the quality of early embryo development in mice

Zygote ◽  
2021 ◽  
pp. 1-8
Author(s):  
Daohong He ◽  
Guobo Han ◽  
Xiaomeng Zhang ◽  
Jingyu Sun ◽  
Yongnan Xu ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Embryonic Development ◽  
Embryo Development ◽  
Early Embryo ◽  
Early Embryonic Development ◽  
Control Group ◽  
Blastocyst Formation ◽  
Early Embryo Development ◽  
Early Embryos

Summary Methomyl is a widely used carbamate insecticide and environmental oestrogen that has adverse effects on the reproductive system. However, there have been no reports on the effect of methomyl on early embryos in mammals. In this study, we explored the effect of methomyl exposure on the quality of early embryonic development in mice and the possible mechanisms. During in vitro culture, different concentrations of methomyl (10, 20, 30 and 35 μM) were added to mouse zygote medium. The results showed that methomyl had an adverse effect on early embryonic development. Compared with the control group, the addition of 30 μM methomyl significantly reduced the rate of early embryo blastocyst formation. Methomyl exposure can increase oxidative stress and impair mitochondrial function, which may be the cause of blastocyst formation. In addition, we found that methomyl exposure promoted apoptosis and autophagy in mouse blastocysts. The toxic effect of methomyl on early embryos may be the result of oxidative stress induction. Taken together, our results indicate that methomyl can cause embryonic development defects in mice, thereby reducing the quality of early embryo development.

Cytological observations on fertilization and early embryonic development in sea cucumber Apostichopus japonicus

2012 ◽  
Vol 36 (2) ◽  
pp. 272 ◽  
Author(s):  
Jie TAN ◽  
Hui-ling SUN ◽  
Fei GAO ◽  
Jing-ping YAN ◽  
Ying-hui DONG ◽  
...  
Keyword(s):  
Embryonic Development ◽  
Sea Cucumber ◽  
Apostichopus Japonicus ◽  
Early Embryonic Development

Studies on the early embryonic development of artificially-bred Siberian sturgeon(Acipenser baeri)

2010 ◽  
Vol 34 (5) ◽  
pp. 777-785 ◽  
Author(s):  
Wei SONG ◽  
Jia-kun SONG ◽  
Chun-xin FAN ◽  
Tao ZHANG ◽  
Bin WANG
Keyword(s):  
Embryonic Development ◽  
Siberian Sturgeon ◽  
Early Embryonic Development ◽  
Acipenser Baeri
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