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Aop: 67

AOP Title

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Modulation of Adult Leydig Cell Function Subsequent to Estradiaol Activation in the Fetal Testis

Short name:

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Decreased Fetal Testosterone 2

Graphical Representation

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Click to download graphical representation template

Authors

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Gary Klinefelter

Point of Contact

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Gary Klinefelter   (email point of contact)

Contributors

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  • Gary Klinefelter

Status

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Author status OECD status OECD project SAAOP status
Under development: Not open for comment. Do not cite 1.29 Under Development


This AOP was last modified on January 27, 2018 15:34

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Revision dates for related pages

Page Revision Date/Time
Decreased sperm quantity / quality in the adult, Decreased fertility December 03, 2016 16:37
Decreased testosterone by the fetal Leydig cells, Increased estradiol September 16, 2017 10:15
Decreased testosterone by the fetal Leydig cells, Activation by other estradiol agonists December 03, 2016 16:37
Decreased testosterone by the fetal Leydig cells, Increased COUP-TFII in fetal Leydig cells December 03, 2016 16:37
decreased testosterone by fetal Leydig cells, Dysgenesis of fetal Leydig cells September 16, 2017 10:15
Decreased number and function of adult Leydig cells, Decreased COUP-TFII stem Leydig cells December 03, 2016 16:37

Abstract

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Background (optional)

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Summary of the AOP

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Events: Molecular Initiating Events (MIE)

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Key Events (KE)

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Adverse Outcomes (AO)

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Sequence Type Event ID Title Short name
1 MIE 658 Decreased testosterone by the fetal Leydig cells, Increased estradiol Decreased testosterone by the fetal Leydig cells, Increased estradiol
2 MIE 659 Decreased testosterone by the fetal Leydig cells, Activation by other estradiol agonists Decreased testosterone by the fetal Leydig cells, Activation by other estradiol agonists
3 KE 655 Decreased testosterone by the fetal Leydig cells, Increased COUP-TFII in fetal Leydig cells Decreased testosterone by the fetal Leydig cells, Increased COUP-TFII in fetal Leydig cells
4 KE 660 decreased testosterone by fetal Leydig cells, Dysgenesis of fetal Leydig cells decreased testosterone by fetal Leydig cells, Dysgenesis of fetal Leydig cells
5 KE 656 Decreased number and function of adult Leydig cells, Decreased COUP-TFII stem Leydig cells Decreased number and function of adult Leydig cells, Decreased COUP-TFII stem Leydig cells
6 AO 505 Decreased sperm quantity / quality in the adult, Decreased fertility Decreased sperm quantity / quality in the adult, Decreased fertility

Relationships Between Two Key Events
(Including MIEs and AOs)

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Network View

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Stressors

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Life Stage Applicability

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Life stage Evidence
Foetal High
Adult, reproductively mature Moderate

Taxonomic Applicability

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Term Scientific Term Evidence Link
Rattus norvegicus Rattus norvegicus High NCBI

Sex Applicability

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Sex Evidence
Male High

Overall Assessment of the AOP

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Domain of Applicability

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Essentiality of the Key Events

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Evidence Assessment

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Quantitative Understanding

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Considerations for Potential Applications of the AOP (optional)

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References

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