Abstract：
:Phthalates (phthalate esters, PAEs) are commonly used as plasticizers and are emerging concerns worldwide for their potential influence on the environment and general public health. Thus, identification of the negative effects and involved mechanisms of PAEs is necessary. Herein, we found that embryonic exposure of zebrafish to di-(2-ethylhexyl) phthalate (DEHP) and di-butyl phthalate (DBP) significantly induced spinal defects, such as inhibited spontaneous movement at 24 h post-fertilization (hpf), spine curvature and body length decrease at 96 hpf. The transcriptional level of the genes that are related to the development of the notochord (col8a1a and ngs), muscle (stac3, klhl41a and smyd2b) and skeleton (bmp2, spp1) were significantly altered by DEHP and DBP at 50 and 250 μg/L, which might be associated with the observed morphological changes. Notably, DBP and DEHP altered the locomotor activity of zebrafish larvae at 144 hpf, which might be due to the abnormal development of the spine and skeletal system. In conclusion, phthalates caused spinal birth defects in zebrafish embryos, induced transcriptional alterations of the spinal developmental genes, and led to abnormal behavior.
journal_name
Chemospherejournal_title
Chemosphereauthors
Qian L,Liu J,Lin Z,Chen X,Yuan L,Shen G,Yang W,Wang D,Huang Y,Pang S,Mu X,Wang C,Li Ydoi
10.1016/j.chemosphere.2020.126144subject
Has Abstractpub_date
2020-06-01 00:00:00pages
126144eissn
0045-6535issn
1879-1298pii
S0045-6535(20)30337-4journal_volume
249pub_type
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