embryonic toxicity
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Author(s):  
Xinwen Zhang ◽  
Delphis F. Levia ◽  
Elvis Osamudiamhen Ebikade ◽  
Jeffrey Chang ◽  
Dionisios G. Vlachos ◽  
...  

2021 ◽  
Vol 778 ◽  
pp. 146407
Author(s):  
You Weng ◽  
Zhuizui Huang ◽  
Anyi Wu ◽  
Qianxuan Yu ◽  
Huahui Lu ◽  
...  

2021 ◽  
pp. 116873
Author(s):  
Zhiyong Hu ◽  
Liting He ◽  
Jiajing Wei ◽  
Yufang Su ◽  
Wei Wang ◽  
...  
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Author(s):  
Dong Sun ◽  
Qi Chen ◽  
Bo Zhu ◽  
Yu Lan ◽  
Shunshan Duan

Benzo[a]pyrene (BaP) is a common environmental disrupting chemical that can cause endocrine disorders in organisms. However, the continued interference effects of BaP on multi-generation fish needs further research. In this study, we performed different periods (G1F1-3, G2F2-3, G3F3) of BaP exposure on marine medaka. We determined the embryo toxicity, and analyzed relative reproductive genes (ERα, cyp19a and vtg1) to predict the sexual differentiation of marine medaka. The results showed that high concentrations of BaP (200 μg·L−1) significantly delayed the hatching time of embryos. Moreover, medium/high concentrations of BaP (20 and 200 μg·L−1) prolonged the sexual maturity time of marine medaka. The relative gene expression of ERα, cyp19a and vtg1 were measured at 5 dpf of embryos. We found that BaP had significantly inhibited the expression of the genes related to female fish development. Consequently, there were more males in the offspring sex ratio at BaP exposure. Overall, BaP can cause embryonic toxicity and abnormal sexual differentiation, while the expression of related reproductive genes can effectively indicate the sex ratio.


2020 ◽  
Vol 7 ◽  
pp. 1039-1045
Author(s):  
Musa Adamu Ibrahim ◽  
Syaizwan Zahmir Zulkifli ◽  
Mohammad Noor Amal Azmai ◽  
Ferdaus Mohamat-Yusuff ◽  
Ahmad Ismail

2018 ◽  
Vol 12 (3) ◽  
pp. 608-616 ◽  
Author(s):  
Elen Farinelli de Campos Silva ◽  
Júlio Pinheiro Baima ◽  
Jaqueline Ribeiro de Barros ◽  
Fernanda Lofiego Renosto ◽  
Carina de Fatima de Sibia ◽  
...  

Inflammatory bowel disease (IBD) affects young people of reproductive age. Therefore, a broad discussion is needed about the possible disease effects in pregnancy, as well as the risks of fetal exposure to the medications used, especially biological therapy. This study aimed to describe the management of 4 Crohn’s disease patients who received anti-TNF therapy during pregnancy and present a literature review. We reported 4 cases composed of young women who became pregnant while receiving anti-TNF agents. The patients presented a satisfactory response to the clinical treatment and the pregnancies progressed without complications. We did not observe maternal or embryonic toxicity, or unfavorable outcomes. The available data point to inflammatory activity as the main risk factor for unfavorable gestational evolution to date, and showed anti-TNF therapy to be safe during pregnancy and breastfeeding. However, the benefits and risks must be discussed with the patient and management decisions should be taken on an individual basis.


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