Effect of an altered hormonal environment by blood plasma collected after adrenocorticotropic administration on embryo development and gene expression in porcine embryos
Early embryonic development may be affected by adrenal hyperactivity in stressful situations which may lead to endocrine changes in the embryo environment. A sensitive period in porcine embryo development is the 4-cell stage when the embryo genome activation occurs. A mixed in vivo-in vitro system w...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
González, Raquel [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2021transfer abstract |
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| Schlagwörter: |
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| Umfang: |
7 |
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| Übergeordnetes Werk: |
Enthalten in: Multi-source monitoring information fusion method for dam health diagnosis based on Wasserstein distance - Chen, Anyi ELSEVIER, 2023, an international journal of animal reproduction, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:162 ; year:2021 ; day:1 ; month:03 ; pages:15-21 ; extent:7 |
| Links: |
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| DOI / URN: |
10.1016/j.theriogenology.2020.11.012 |
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ELV052891062 |
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| 245 | 1 | 0 | |a Effect of an altered hormonal environment by blood plasma collected after adrenocorticotropic administration on embryo development and gene expression in porcine embryos |
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| 520 | |a Early embryonic development may be affected by adrenal hyperactivity in stressful situations which may lead to endocrine changes in the embryo environment. A sensitive period in porcine embryo development is the 4-cell stage when the embryo genome activation occurs. A mixed in vivo-in vitro system was implemented to test whether an altered milieu around this stage could affect embryo development and blastocyst quality in the porcine model. After in vitro maturation and fertilisation, presumptive zygotes were exposed for 24 h to plasma collected after ovulation from adrenocorticotropic hormone (ACTH)-treated, non-ACTH-treated sows; and, medium without plasma, supplemented with bovine serum albumin. Subsequently, embryo development and differences in gene expression were tested among treatments. Cleavage and blastocyst rates did not differ between treatments. Blastocyst quality by morphology assessment was similar when all the resulting blastocysts were included in the analysis. However, when only expanded blastocysts (and onwards) were included in the analysis, the blastocysts from the non-ACTH plasma group showed better quality score. Blastocyst quality by morphological assessment was not mirrored by the transcription levels of various important genes for embryo development whose gene expression profile did not significantly differ among groups. It is likely that the effect of the altered environment provided by plasma from ACTH-treated sows was too short to affect embryo development. Therefore, a brief exposure to an altered endocrine environment may not have harmful consequences for the embryo once fertilisation occurs. | ||
| 520 | |a Early embryonic development may be affected by adrenal hyperactivity in stressful situations which may lead to endocrine changes in the embryo environment. A sensitive period in porcine embryo development is the 4-cell stage when the embryo genome activation occurs. A mixed in vivo-in vitro system was implemented to test whether an altered milieu around this stage could affect embryo development and blastocyst quality in the porcine model. After in vitro maturation and fertilisation, presumptive zygotes were exposed for 24 h to plasma collected after ovulation from adrenocorticotropic hormone (ACTH)-treated, non-ACTH-treated sows; and, medium without plasma, supplemented with bovine serum albumin. Subsequently, embryo development and differences in gene expression were tested among treatments. Cleavage and blastocyst rates did not differ between treatments. Blastocyst quality by morphology assessment was similar when all the resulting blastocysts were included in the analysis. However, when only expanded blastocysts (and onwards) were included in the analysis, the blastocysts from the non-ACTH plasma group showed better quality score. Blastocyst quality by morphological assessment was not mirrored by the transcription levels of various important genes for embryo development whose gene expression profile did not significantly differ among groups. It is likely that the effect of the altered environment provided by plasma from ACTH-treated sows was too short to affect embryo development. Therefore, a brief exposure to an altered endocrine environment may not have harmful consequences for the embryo once fertilisation occurs. | ||
| 650 | 7 | |a qRT-PCR |2 Elsevier | |
| 650 | 7 | |a In vitro culture |2 Elsevier | |
| 650 | 7 | |a ACTH |2 Elsevier | |
| 650 | 7 | |a Cortisol |2 Elsevier | |
| 650 | 7 | |a Pig |2 Elsevier | |
| 700 | 1 | |a Pericuesta, Eva |4 oth | |
| 700 | 1 | |a Gutiérrez-Adán, Alfonso |4 oth | |
| 700 | 1 | |a Sjunnesson, Ylva C.B. |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier Science |a Chen, Anyi ELSEVIER |t Multi-source monitoring information fusion method for dam health diagnosis based on Wasserstein distance |d 2023 |d an international journal of animal reproduction |g Amsterdam [u.a.] |w (DE-627)ELV009476539 |
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10.1016/j.theriogenology.2020.11.012 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001281.pica (DE-627)ELV052891062 (ELSEVIER)S0093-691X(20)30611-7 DE-627 ger DE-627 rakwb eng 070 004 VZ LING DE-30 fid 54.00 bkl 53.71 bkl González, Raquel verfasserin aut Effect of an altered hormonal environment by blood plasma collected after adrenocorticotropic administration on embryo development and gene expression in porcine embryos 2021transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Early embryonic development may be affected by adrenal hyperactivity in stressful situations which may lead to endocrine changes in the embryo environment. A sensitive period in porcine embryo development is the 4-cell stage when the embryo genome activation occurs. A mixed in vivo-in vitro system was implemented to test whether an altered milieu around this stage could affect embryo development and blastocyst quality in the porcine model. After in vitro maturation and fertilisation, presumptive zygotes were exposed for 24 h to plasma collected after ovulation from adrenocorticotropic hormone (ACTH)-treated, non-ACTH-treated sows; and, medium without plasma, supplemented with bovine serum albumin. Subsequently, embryo development and differences in gene expression were tested among treatments. Cleavage and blastocyst rates did not differ between treatments. Blastocyst quality by morphology assessment was similar when all the resulting blastocysts were included in the analysis. However, when only expanded blastocysts (and onwards) were included in the analysis, the blastocysts from the non-ACTH plasma group showed better quality score. Blastocyst quality by morphological assessment was not mirrored by the transcription levels of various important genes for embryo development whose gene expression profile did not significantly differ among groups. It is likely that the effect of the altered environment provided by plasma from ACTH-treated sows was too short to affect embryo development. Therefore, a brief exposure to an altered endocrine environment may not have harmful consequences for the embryo once fertilisation occurs. Early embryonic development may be affected by adrenal hyperactivity in stressful situations which may lead to endocrine changes in the embryo environment. A sensitive period in porcine embryo development is the 4-cell stage when the embryo genome activation occurs. A mixed in vivo-in vitro system was implemented to test whether an altered milieu around this stage could affect embryo development and blastocyst quality in the porcine model. After in vitro maturation and fertilisation, presumptive zygotes were exposed for 24 h to plasma collected after ovulation from adrenocorticotropic hormone (ACTH)-treated, non-ACTH-treated sows; and, medium without plasma, supplemented with bovine serum albumin. Subsequently, embryo development and differences in gene expression were tested among treatments. Cleavage and blastocyst rates did not differ between treatments. Blastocyst quality by morphology assessment was similar when all the resulting blastocysts were included in the analysis. However, when only expanded blastocysts (and onwards) were included in the analysis, the blastocysts from the non-ACTH plasma group showed better quality score. Blastocyst quality by morphological assessment was not mirrored by the transcription levels of various important genes for embryo development whose gene expression profile did not significantly differ among groups. It is likely that the effect of the altered environment provided by plasma from ACTH-treated sows was too short to affect embryo development. Therefore, a brief exposure to an altered endocrine environment may not have harmful consequences for the embryo once fertilisation occurs. qRT-PCR Elsevier In vitro culture Elsevier ACTH Elsevier Cortisol Elsevier Pig Elsevier Pericuesta, Eva oth Gutiérrez-Adán, Alfonso oth Sjunnesson, Ylva C.B. oth Enthalten in Elsevier Science Chen, Anyi ELSEVIER Multi-source monitoring information fusion method for dam health diagnosis based on Wasserstein distance 2023 an international journal of animal reproduction Amsterdam [u.a.] (DE-627)ELV009476539 volume:162 year:2021 day:1 month:03 pages:15-21 extent:7 https://doi.org/10.1016/j.theriogenology.2020.11.012 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-LING SSG-OPC-BBI 54.00 Informatik: Allgemeines VZ 53.71 Theoretische Nachrichtentechnik VZ AR 162 2021 1 0301 15-21 7 |
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10.1016/j.theriogenology.2020.11.012 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001281.pica (DE-627)ELV052891062 (ELSEVIER)S0093-691X(20)30611-7 DE-627 ger DE-627 rakwb eng 070 004 VZ LING DE-30 fid 54.00 bkl 53.71 bkl González, Raquel verfasserin aut Effect of an altered hormonal environment by blood plasma collected after adrenocorticotropic administration on embryo development and gene expression in porcine embryos 2021transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Early embryonic development may be affected by adrenal hyperactivity in stressful situations which may lead to endocrine changes in the embryo environment. A sensitive period in porcine embryo development is the 4-cell stage when the embryo genome activation occurs. A mixed in vivo-in vitro system was implemented to test whether an altered milieu around this stage could affect embryo development and blastocyst quality in the porcine model. After in vitro maturation and fertilisation, presumptive zygotes were exposed for 24 h to plasma collected after ovulation from adrenocorticotropic hormone (ACTH)-treated, non-ACTH-treated sows; and, medium without plasma, supplemented with bovine serum albumin. Subsequently, embryo development and differences in gene expression were tested among treatments. Cleavage and blastocyst rates did not differ between treatments. Blastocyst quality by morphology assessment was similar when all the resulting blastocysts were included in the analysis. However, when only expanded blastocysts (and onwards) were included in the analysis, the blastocysts from the non-ACTH plasma group showed better quality score. Blastocyst quality by morphological assessment was not mirrored by the transcription levels of various important genes for embryo development whose gene expression profile did not significantly differ among groups. It is likely that the effect of the altered environment provided by plasma from ACTH-treated sows was too short to affect embryo development. Therefore, a brief exposure to an altered endocrine environment may not have harmful consequences for the embryo once fertilisation occurs. Early embryonic development may be affected by adrenal hyperactivity in stressful situations which may lead to endocrine changes in the embryo environment. A sensitive period in porcine embryo development is the 4-cell stage when the embryo genome activation occurs. A mixed in vivo-in vitro system was implemented to test whether an altered milieu around this stage could affect embryo development and blastocyst quality in the porcine model. After in vitro maturation and fertilisation, presumptive zygotes were exposed for 24 h to plasma collected after ovulation from adrenocorticotropic hormone (ACTH)-treated, non-ACTH-treated sows; and, medium without plasma, supplemented with bovine serum albumin. Subsequently, embryo development and differences in gene expression were tested among treatments. Cleavage and blastocyst rates did not differ between treatments. Blastocyst quality by morphology assessment was similar when all the resulting blastocysts were included in the analysis. However, when only expanded blastocysts (and onwards) were included in the analysis, the blastocysts from the non-ACTH plasma group showed better quality score. Blastocyst quality by morphological assessment was not mirrored by the transcription levels of various important genes for embryo development whose gene expression profile did not significantly differ among groups. It is likely that the effect of the altered environment provided by plasma from ACTH-treated sows was too short to affect embryo development. Therefore, a brief exposure to an altered endocrine environment may not have harmful consequences for the embryo once fertilisation occurs. qRT-PCR Elsevier In vitro culture Elsevier ACTH Elsevier Cortisol Elsevier Pig Elsevier Pericuesta, Eva oth Gutiérrez-Adán, Alfonso oth Sjunnesson, Ylva C.B. oth Enthalten in Elsevier Science Chen, Anyi ELSEVIER Multi-source monitoring information fusion method for dam health diagnosis based on Wasserstein distance 2023 an international journal of animal reproduction Amsterdam [u.a.] (DE-627)ELV009476539 volume:162 year:2021 day:1 month:03 pages:15-21 extent:7 https://doi.org/10.1016/j.theriogenology.2020.11.012 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-LING SSG-OPC-BBI 54.00 Informatik: Allgemeines VZ 53.71 Theoretische Nachrichtentechnik VZ AR 162 2021 1 0301 15-21 7 |
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10.1016/j.theriogenology.2020.11.012 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001281.pica (DE-627)ELV052891062 (ELSEVIER)S0093-691X(20)30611-7 DE-627 ger DE-627 rakwb eng 070 004 VZ LING DE-30 fid 54.00 bkl 53.71 bkl González, Raquel verfasserin aut Effect of an altered hormonal environment by blood plasma collected after adrenocorticotropic administration on embryo development and gene expression in porcine embryos 2021transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Early embryonic development may be affected by adrenal hyperactivity in stressful situations which may lead to endocrine changes in the embryo environment. A sensitive period in porcine embryo development is the 4-cell stage when the embryo genome activation occurs. A mixed in vivo-in vitro system was implemented to test whether an altered milieu around this stage could affect embryo development and blastocyst quality in the porcine model. After in vitro maturation and fertilisation, presumptive zygotes were exposed for 24 h to plasma collected after ovulation from adrenocorticotropic hormone (ACTH)-treated, non-ACTH-treated sows; and, medium without plasma, supplemented with bovine serum albumin. Subsequently, embryo development and differences in gene expression were tested among treatments. Cleavage and blastocyst rates did not differ between treatments. Blastocyst quality by morphology assessment was similar when all the resulting blastocysts were included in the analysis. However, when only expanded blastocysts (and onwards) were included in the analysis, the blastocysts from the non-ACTH plasma group showed better quality score. Blastocyst quality by morphological assessment was not mirrored by the transcription levels of various important genes for embryo development whose gene expression profile did not significantly differ among groups. It is likely that the effect of the altered environment provided by plasma from ACTH-treated sows was too short to affect embryo development. Therefore, a brief exposure to an altered endocrine environment may not have harmful consequences for the embryo once fertilisation occurs. Early embryonic development may be affected by adrenal hyperactivity in stressful situations which may lead to endocrine changes in the embryo environment. A sensitive period in porcine embryo development is the 4-cell stage when the embryo genome activation occurs. A mixed in vivo-in vitro system was implemented to test whether an altered milieu around this stage could affect embryo development and blastocyst quality in the porcine model. After in vitro maturation and fertilisation, presumptive zygotes were exposed for 24 h to plasma collected after ovulation from adrenocorticotropic hormone (ACTH)-treated, non-ACTH-treated sows; and, medium without plasma, supplemented with bovine serum albumin. Subsequently, embryo development and differences in gene expression were tested among treatments. Cleavage and blastocyst rates did not differ between treatments. Blastocyst quality by morphology assessment was similar when all the resulting blastocysts were included in the analysis. However, when only expanded blastocysts (and onwards) were included in the analysis, the blastocysts from the non-ACTH plasma group showed better quality score. Blastocyst quality by morphological assessment was not mirrored by the transcription levels of various important genes for embryo development whose gene expression profile did not significantly differ among groups. It is likely that the effect of the altered environment provided by plasma from ACTH-treated sows was too short to affect embryo development. Therefore, a brief exposure to an altered endocrine environment may not have harmful consequences for the embryo once fertilisation occurs. qRT-PCR Elsevier In vitro culture Elsevier ACTH Elsevier Cortisol Elsevier Pig Elsevier Pericuesta, Eva oth Gutiérrez-Adán, Alfonso oth Sjunnesson, Ylva C.B. oth Enthalten in Elsevier Science Chen, Anyi ELSEVIER Multi-source monitoring information fusion method for dam health diagnosis based on Wasserstein distance 2023 an international journal of animal reproduction Amsterdam [u.a.] (DE-627)ELV009476539 volume:162 year:2021 day:1 month:03 pages:15-21 extent:7 https://doi.org/10.1016/j.theriogenology.2020.11.012 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-LING SSG-OPC-BBI 54.00 Informatik: Allgemeines VZ 53.71 Theoretische Nachrichtentechnik VZ AR 162 2021 1 0301 15-21 7 |
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10.1016/j.theriogenology.2020.11.012 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001281.pica (DE-627)ELV052891062 (ELSEVIER)S0093-691X(20)30611-7 DE-627 ger DE-627 rakwb eng 070 004 VZ LING DE-30 fid 54.00 bkl 53.71 bkl González, Raquel verfasserin aut Effect of an altered hormonal environment by blood plasma collected after adrenocorticotropic administration on embryo development and gene expression in porcine embryos 2021transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Early embryonic development may be affected by adrenal hyperactivity in stressful situations which may lead to endocrine changes in the embryo environment. A sensitive period in porcine embryo development is the 4-cell stage when the embryo genome activation occurs. A mixed in vivo-in vitro system was implemented to test whether an altered milieu around this stage could affect embryo development and blastocyst quality in the porcine model. After in vitro maturation and fertilisation, presumptive zygotes were exposed for 24 h to plasma collected after ovulation from adrenocorticotropic hormone (ACTH)-treated, non-ACTH-treated sows; and, medium without plasma, supplemented with bovine serum albumin. Subsequently, embryo development and differences in gene expression were tested among treatments. Cleavage and blastocyst rates did not differ between treatments. Blastocyst quality by morphology assessment was similar when all the resulting blastocysts were included in the analysis. However, when only expanded blastocysts (and onwards) were included in the analysis, the blastocysts from the non-ACTH plasma group showed better quality score. Blastocyst quality by morphological assessment was not mirrored by the transcription levels of various important genes for embryo development whose gene expression profile did not significantly differ among groups. It is likely that the effect of the altered environment provided by plasma from ACTH-treated sows was too short to affect embryo development. Therefore, a brief exposure to an altered endocrine environment may not have harmful consequences for the embryo once fertilisation occurs. Early embryonic development may be affected by adrenal hyperactivity in stressful situations which may lead to endocrine changes in the embryo environment. A sensitive period in porcine embryo development is the 4-cell stage when the embryo genome activation occurs. A mixed in vivo-in vitro system was implemented to test whether an altered milieu around this stage could affect embryo development and blastocyst quality in the porcine model. After in vitro maturation and fertilisation, presumptive zygotes were exposed for 24 h to plasma collected after ovulation from adrenocorticotropic hormone (ACTH)-treated, non-ACTH-treated sows; and, medium without plasma, supplemented with bovine serum albumin. Subsequently, embryo development and differences in gene expression were tested among treatments. Cleavage and blastocyst rates did not differ between treatments. Blastocyst quality by morphology assessment was similar when all the resulting blastocysts were included in the analysis. However, when only expanded blastocysts (and onwards) were included in the analysis, the blastocysts from the non-ACTH plasma group showed better quality score. Blastocyst quality by morphological assessment was not mirrored by the transcription levels of various important genes for embryo development whose gene expression profile did not significantly differ among groups. It is likely that the effect of the altered environment provided by plasma from ACTH-treated sows was too short to affect embryo development. Therefore, a brief exposure to an altered endocrine environment may not have harmful consequences for the embryo once fertilisation occurs. qRT-PCR Elsevier In vitro culture Elsevier ACTH Elsevier Cortisol Elsevier Pig Elsevier Pericuesta, Eva oth Gutiérrez-Adán, Alfonso oth Sjunnesson, Ylva C.B. oth Enthalten in Elsevier Science Chen, Anyi ELSEVIER Multi-source monitoring information fusion method for dam health diagnosis based on Wasserstein distance 2023 an international journal of animal reproduction Amsterdam [u.a.] (DE-627)ELV009476539 volume:162 year:2021 day:1 month:03 pages:15-21 extent:7 https://doi.org/10.1016/j.theriogenology.2020.11.012 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-LING SSG-OPC-BBI 54.00 Informatik: Allgemeines VZ 53.71 Theoretische Nachrichtentechnik VZ AR 162 2021 1 0301 15-21 7 |
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10.1016/j.theriogenology.2020.11.012 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001281.pica (DE-627)ELV052891062 (ELSEVIER)S0093-691X(20)30611-7 DE-627 ger DE-627 rakwb eng 070 004 VZ LING DE-30 fid 54.00 bkl 53.71 bkl González, Raquel verfasserin aut Effect of an altered hormonal environment by blood plasma collected after adrenocorticotropic administration on embryo development and gene expression in porcine embryos 2021transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Early embryonic development may be affected by adrenal hyperactivity in stressful situations which may lead to endocrine changes in the embryo environment. A sensitive period in porcine embryo development is the 4-cell stage when the embryo genome activation occurs. A mixed in vivo-in vitro system was implemented to test whether an altered milieu around this stage could affect embryo development and blastocyst quality in the porcine model. After in vitro maturation and fertilisation, presumptive zygotes were exposed for 24 h to plasma collected after ovulation from adrenocorticotropic hormone (ACTH)-treated, non-ACTH-treated sows; and, medium without plasma, supplemented with bovine serum albumin. Subsequently, embryo development and differences in gene expression were tested among treatments. Cleavage and blastocyst rates did not differ between treatments. Blastocyst quality by morphology assessment was similar when all the resulting blastocysts were included in the analysis. However, when only expanded blastocysts (and onwards) were included in the analysis, the blastocysts from the non-ACTH plasma group showed better quality score. Blastocyst quality by morphological assessment was not mirrored by the transcription levels of various important genes for embryo development whose gene expression profile did not significantly differ among groups. It is likely that the effect of the altered environment provided by plasma from ACTH-treated sows was too short to affect embryo development. Therefore, a brief exposure to an altered endocrine environment may not have harmful consequences for the embryo once fertilisation occurs. Early embryonic development may be affected by adrenal hyperactivity in stressful situations which may lead to endocrine changes in the embryo environment. A sensitive period in porcine embryo development is the 4-cell stage when the embryo genome activation occurs. A mixed in vivo-in vitro system was implemented to test whether an altered milieu around this stage could affect embryo development and blastocyst quality in the porcine model. After in vitro maturation and fertilisation, presumptive zygotes were exposed for 24 h to plasma collected after ovulation from adrenocorticotropic hormone (ACTH)-treated, non-ACTH-treated sows; and, medium without plasma, supplemented with bovine serum albumin. Subsequently, embryo development and differences in gene expression were tested among treatments. Cleavage and blastocyst rates did not differ between treatments. Blastocyst quality by morphology assessment was similar when all the resulting blastocysts were included in the analysis. However, when only expanded blastocysts (and onwards) were included in the analysis, the blastocysts from the non-ACTH plasma group showed better quality score. Blastocyst quality by morphological assessment was not mirrored by the transcription levels of various important genes for embryo development whose gene expression profile did not significantly differ among groups. It is likely that the effect of the altered environment provided by plasma from ACTH-treated sows was too short to affect embryo development. Therefore, a brief exposure to an altered endocrine environment may not have harmful consequences for the embryo once fertilisation occurs. qRT-PCR Elsevier In vitro culture Elsevier ACTH Elsevier Cortisol Elsevier Pig Elsevier Pericuesta, Eva oth Gutiérrez-Adán, Alfonso oth Sjunnesson, Ylva C.B. oth Enthalten in Elsevier Science Chen, Anyi ELSEVIER Multi-source monitoring information fusion method for dam health diagnosis based on Wasserstein distance 2023 an international journal of animal reproduction Amsterdam [u.a.] (DE-627)ELV009476539 volume:162 year:2021 day:1 month:03 pages:15-21 extent:7 https://doi.org/10.1016/j.theriogenology.2020.11.012 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-LING SSG-OPC-BBI 54.00 Informatik: Allgemeines VZ 53.71 Theoretische Nachrichtentechnik VZ AR 162 2021 1 0301 15-21 7 |
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effect of an altered hormonal environment by blood plasma collected after adrenocorticotropic administration on embryo development and gene expression in porcine embryos |
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Effect of an altered hormonal environment by blood plasma collected after adrenocorticotropic administration on embryo development and gene expression in porcine embryos |
| abstract |
Early embryonic development may be affected by adrenal hyperactivity in stressful situations which may lead to endocrine changes in the embryo environment. A sensitive period in porcine embryo development is the 4-cell stage when the embryo genome activation occurs. A mixed in vivo-in vitro system was implemented to test whether an altered milieu around this stage could affect embryo development and blastocyst quality in the porcine model. After in vitro maturation and fertilisation, presumptive zygotes were exposed for 24 h to plasma collected after ovulation from adrenocorticotropic hormone (ACTH)-treated, non-ACTH-treated sows; and, medium without plasma, supplemented with bovine serum albumin. Subsequently, embryo development and differences in gene expression were tested among treatments. Cleavage and blastocyst rates did not differ between treatments. Blastocyst quality by morphology assessment was similar when all the resulting blastocysts were included in the analysis. However, when only expanded blastocysts (and onwards) were included in the analysis, the blastocysts from the non-ACTH plasma group showed better quality score. Blastocyst quality by morphological assessment was not mirrored by the transcription levels of various important genes for embryo development whose gene expression profile did not significantly differ among groups. It is likely that the effect of the altered environment provided by plasma from ACTH-treated sows was too short to affect embryo development. Therefore, a brief exposure to an altered endocrine environment may not have harmful consequences for the embryo once fertilisation occurs. |
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Early embryonic development may be affected by adrenal hyperactivity in stressful situations which may lead to endocrine changes in the embryo environment. A sensitive period in porcine embryo development is the 4-cell stage when the embryo genome activation occurs. A mixed in vivo-in vitro system was implemented to test whether an altered milieu around this stage could affect embryo development and blastocyst quality in the porcine model. After in vitro maturation and fertilisation, presumptive zygotes were exposed for 24 h to plasma collected after ovulation from adrenocorticotropic hormone (ACTH)-treated, non-ACTH-treated sows; and, medium without plasma, supplemented with bovine serum albumin. Subsequently, embryo development and differences in gene expression were tested among treatments. Cleavage and blastocyst rates did not differ between treatments. Blastocyst quality by morphology assessment was similar when all the resulting blastocysts were included in the analysis. However, when only expanded blastocysts (and onwards) were included in the analysis, the blastocysts from the non-ACTH plasma group showed better quality score. Blastocyst quality by morphological assessment was not mirrored by the transcription levels of various important genes for embryo development whose gene expression profile did not significantly differ among groups. It is likely that the effect of the altered environment provided by plasma from ACTH-treated sows was too short to affect embryo development. Therefore, a brief exposure to an altered endocrine environment may not have harmful consequences for the embryo once fertilisation occurs. |
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Early embryonic development may be affected by adrenal hyperactivity in stressful situations which may lead to endocrine changes in the embryo environment. A sensitive period in porcine embryo development is the 4-cell stage when the embryo genome activation occurs. A mixed in vivo-in vitro system was implemented to test whether an altered milieu around this stage could affect embryo development and blastocyst quality in the porcine model. After in vitro maturation and fertilisation, presumptive zygotes were exposed for 24 h to plasma collected after ovulation from adrenocorticotropic hormone (ACTH)-treated, non-ACTH-treated sows; and, medium without plasma, supplemented with bovine serum albumin. Subsequently, embryo development and differences in gene expression were tested among treatments. Cleavage and blastocyst rates did not differ between treatments. Blastocyst quality by morphology assessment was similar when all the resulting blastocysts were included in the analysis. However, when only expanded blastocysts (and onwards) were included in the analysis, the blastocysts from the non-ACTH plasma group showed better quality score. Blastocyst quality by morphological assessment was not mirrored by the transcription levels of various important genes for embryo development whose gene expression profile did not significantly differ among groups. It is likely that the effect of the altered environment provided by plasma from ACTH-treated sows was too short to affect embryo development. Therefore, a brief exposure to an altered endocrine environment may not have harmful consequences for the embryo once fertilisation occurs. |
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Effect of an altered hormonal environment by blood plasma collected after adrenocorticotropic administration on embryo development and gene expression in porcine embryos |
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