Effects of sub-lethal teratogen exposure during larval development on egg laying and egg quality in adult Caenorhabditis elegans [version 1; referees: 2 approved]
Background: Acute high dose exposure to teratogenic chemicals alters the proper development of an embryo leading to infertility, impaired fecundity, and few viable offspring. However, chronic exposure to sub-toxic doses of teratogens during early development may also have long-term impacts on egg qu...
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| Format: | Article |
| Language: | English |
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F1000 Research Ltd
2016-12-01
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| Series: | F1000Research |
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| Online Access: | https://f1000research.com/articles/5-2925/v1 |
| _version_ | 1818148707548266496 |
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| author | Alexis Killeen Caralina Marin de Evsikova |
| author_facet | Alexis Killeen Caralina Marin de Evsikova |
| author_sort | Alexis Killeen |
| collection | DOAJ |
| description | Background: Acute high dose exposure to teratogenic chemicals alters the proper development of an embryo leading to infertility, impaired fecundity, and few viable offspring. However, chronic exposure to sub-toxic doses of teratogens during early development may also have long-term impacts on egg quality and embryo viability. Methods: To test the hypothesis that low dose exposure during early development can impact long-term reproductive health, Caenorhabditis elegans larvae were exposed to 10 teratogens during larval development, and subsequently were examined for the pattern of egg-laying and egg quality (hatched larvae and embryo viability) as gravid adults. After the exposure, adult gravid worms were transferred to untreated plates and the numbers of eggs laid were recorded every 3 hours, and the day following exposure the numbers of hatched larvae were counted. Results: While fecundity and fertility were typically impaired by teratogens, unexpectedly, many teratogens initially increased egg-laying at the earliest interval compared to control but not at later intervals. However, egg quality, as assessed by embryo viability, remained the same because many of the eggs (<50%) did not hatch. Conclusions: Chronic, low dose exposures to teratogens during early larval development have subtle, long-term effects on egg laying and egg quality. |
| first_indexed | 2024-12-11T12:55:25Z |
| format | Article |
| id | doaj.art-f648925e3e3e4418805cfe0a0a6c16e8 |
| institution | Directory Open Access Journal |
| issn | 2046-1402 |
| language | English |
| last_indexed | 2024-12-11T12:55:25Z |
| publishDate | 2016-12-01 |
| publisher | F1000 Research Ltd |
| record_format | Article |
| series | F1000Research |
| spelling | doaj.art-f648925e3e3e4418805cfe0a0a6c16e82022-12-22T01:06:35ZengF1000 Research LtdF1000Research2046-14022016-12-01510.12688/f1000research.8934.19613Effects of sub-lethal teratogen exposure during larval development on egg laying and egg quality in adult Caenorhabditis elegans [version 1; referees: 2 approved]Alexis Killeen0Caralina Marin de Evsikova1Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, USADepartment of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, USABackground: Acute high dose exposure to teratogenic chemicals alters the proper development of an embryo leading to infertility, impaired fecundity, and few viable offspring. However, chronic exposure to sub-toxic doses of teratogens during early development may also have long-term impacts on egg quality and embryo viability. Methods: To test the hypothesis that low dose exposure during early development can impact long-term reproductive health, Caenorhabditis elegans larvae were exposed to 10 teratogens during larval development, and subsequently were examined for the pattern of egg-laying and egg quality (hatched larvae and embryo viability) as gravid adults. After the exposure, adult gravid worms were transferred to untreated plates and the numbers of eggs laid were recorded every 3 hours, and the day following exposure the numbers of hatched larvae were counted. Results: While fecundity and fertility were typically impaired by teratogens, unexpectedly, many teratogens initially increased egg-laying at the earliest interval compared to control but not at later intervals. However, egg quality, as assessed by embryo viability, remained the same because many of the eggs (<50%) did not hatch. Conclusions: Chronic, low dose exposures to teratogens during early larval development have subtle, long-term effects on egg laying and egg quality.https://f1000research.com/articles/5-2925/v1Developmental Molecular Mechanisms |
| spellingShingle | Alexis Killeen Caralina Marin de Evsikova Effects of sub-lethal teratogen exposure during larval development on egg laying and egg quality in adult Caenorhabditis elegans [version 1; referees: 2 approved] F1000Research Developmental Molecular Mechanisms |
| title | Effects of sub-lethal teratogen exposure during larval development on egg laying and egg quality in adult Caenorhabditis elegans [version 1; referees: 2 approved] |
| title_full | Effects of sub-lethal teratogen exposure during larval development on egg laying and egg quality in adult Caenorhabditis elegans [version 1; referees: 2 approved] |
| title_fullStr | Effects of sub-lethal teratogen exposure during larval development on egg laying and egg quality in adult Caenorhabditis elegans [version 1; referees: 2 approved] |
| title_full_unstemmed | Effects of sub-lethal teratogen exposure during larval development on egg laying and egg quality in adult Caenorhabditis elegans [version 1; referees: 2 approved] |
| title_short | Effects of sub-lethal teratogen exposure during larval development on egg laying and egg quality in adult Caenorhabditis elegans [version 1; referees: 2 approved] |
| title_sort | effects of sub lethal teratogen exposure during larval development on egg laying and egg quality in adult caenorhabditis elegans version 1 referees 2 approved |
| topic | Developmental Molecular Mechanisms |
| url | https://f1000research.com/articles/5-2925/v1 |
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