Effects of Aroclor 1254 on in vivo oocyte maturation in the mouse.
Polychlorinated biphenyls (PCBs) are stable, lipophilic compounds that accumulate in the environment and in the food chain. Though some studies provided evidence that PCBs had adverse effects on reproductive function, most of these results were from in vitro models. Therefore we investigated the eff...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2014-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC4094510?pdf=render |
| _version_ | 1818522067871465472 |
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| author | ShuZhen Liu LiGang Jiang XiaoQian Meng XiaoYing Han Dong Cheng TianLiang Zhang YiLiang Miao |
| author_facet | ShuZhen Liu LiGang Jiang XiaoQian Meng XiaoYing Han Dong Cheng TianLiang Zhang YiLiang Miao |
| author_sort | ShuZhen Liu |
| collection | DOAJ |
| description | Polychlorinated biphenyls (PCBs) are stable, lipophilic compounds that accumulate in the environment and in the food chain. Though some studies provided evidence that PCBs had adverse effects on reproductive function, most of these results were from in vitro models. Therefore we investigated the effect of Aroclor 1254 (a commercial PCBs mixture) treatments on in vivo maturation and developmental potential of mouse oocytes. In the present study, female ICR mice were treated with different doses (12.5, 25 and 50 mg/kg) of Aroclor 1254 (a commercial PCB mixture) once every 72 hours by intraperitoneal injection for 9 days. After three treatments of Aroclor 1254, the mice were superovulated to collect oocytes one day after the last exposure. The effects of Aroclor 1254 on oocyte maturation, fertilization, and preimplantation embryonic development were investigated. Immunofluorescence-stained oocytes were observed under a confocal microscope to assess the effects of Aroclor 1254 on spindle morphology. Parthenogenic activation and the incidence of cumulus apoptosis in cumulus-oocyte complexes were observed as well. Oocytes exposed to different doses of Aroclor 1254 in vivo were associated with a significant decrease in outgrowth potential, abnormal spindle configurations, and the inhibition of parthenogenetic activation of ovulated oocytes. Furthermore, the incidence of apoptosis in cumulus cells was increased after exposed to Aroclor 1254. These results may provide reference for the treatment of reproductive diseases such as infertility or miscarriage caused by environmental contaminants. |
| first_indexed | 2024-12-11T05:28:27Z |
| format | Article |
| id | doaj.art-1b114a8ce0b2427fac158b2bdfb5dfac |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-11T05:28:27Z |
| publishDate | 2014-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-1b114a8ce0b2427fac158b2bdfb5dfac2022-12-22T01:19:31ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0197e10206410.1371/journal.pone.0102064Effects of Aroclor 1254 on in vivo oocyte maturation in the mouse.ShuZhen LiuLiGang JiangXiaoQian MengXiaoYing HanDong ChengTianLiang ZhangYiLiang MiaoPolychlorinated biphenyls (PCBs) are stable, lipophilic compounds that accumulate in the environment and in the food chain. Though some studies provided evidence that PCBs had adverse effects on reproductive function, most of these results were from in vitro models. Therefore we investigated the effect of Aroclor 1254 (a commercial PCBs mixture) treatments on in vivo maturation and developmental potential of mouse oocytes. In the present study, female ICR mice were treated with different doses (12.5, 25 and 50 mg/kg) of Aroclor 1254 (a commercial PCB mixture) once every 72 hours by intraperitoneal injection for 9 days. After three treatments of Aroclor 1254, the mice were superovulated to collect oocytes one day after the last exposure. The effects of Aroclor 1254 on oocyte maturation, fertilization, and preimplantation embryonic development were investigated. Immunofluorescence-stained oocytes were observed under a confocal microscope to assess the effects of Aroclor 1254 on spindle morphology. Parthenogenic activation and the incidence of cumulus apoptosis in cumulus-oocyte complexes were observed as well. Oocytes exposed to different doses of Aroclor 1254 in vivo were associated with a significant decrease in outgrowth potential, abnormal spindle configurations, and the inhibition of parthenogenetic activation of ovulated oocytes. Furthermore, the incidence of apoptosis in cumulus cells was increased after exposed to Aroclor 1254. These results may provide reference for the treatment of reproductive diseases such as infertility or miscarriage caused by environmental contaminants.http://europepmc.org/articles/PMC4094510?pdf=render |
| spellingShingle | ShuZhen Liu LiGang Jiang XiaoQian Meng XiaoYing Han Dong Cheng TianLiang Zhang YiLiang Miao Effects of Aroclor 1254 on in vivo oocyte maturation in the mouse. PLoS ONE |
| title | Effects of Aroclor 1254 on in vivo oocyte maturation in the mouse. |
| title_full | Effects of Aroclor 1254 on in vivo oocyte maturation in the mouse. |
| title_fullStr | Effects of Aroclor 1254 on in vivo oocyte maturation in the mouse. |
| title_full_unstemmed | Effects of Aroclor 1254 on in vivo oocyte maturation in the mouse. |
| title_short | Effects of Aroclor 1254 on in vivo oocyte maturation in the mouse. |
| title_sort | effects of aroclor 1254 on in vivo oocyte maturation in the mouse |
| url | http://europepmc.org/articles/PMC4094510?pdf=render |
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