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Questions and Answers
What is the primary purpose of prostaglandins in the context of mare reproductive health?
What is the primary purpose of prostaglandins in the context of mare reproductive health?
Which method is primarily used for cervical ripening in mares before parturition?
Which method is primarily used for cervical ripening in mares before parturition?
What is the role of oxytocin in mare reproductive processes?
What is the role of oxytocin in mare reproductive processes?
Elective termination of pregnancy in mares is primarily associated with which of the following?
Elective termination of pregnancy in mares is primarily associated with which of the following?
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Which agent is compared for its effectiveness in inducing parturition in mares?
Which agent is compared for its effectiveness in inducing parturition in mares?
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The effect of PGE2 on mares primarily relates to what physiological response?
The effect of PGE2 on mares primarily relates to what physiological response?
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What is a documented effect of prostaglandin F2α in mares?
What is a documented effect of prostaglandin F2α in mares?
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Which aspect of mare reproductive health is primarily influenced by hormonal changes during abortion?
Which aspect of mare reproductive health is primarily influenced by hormonal changes during abortion?
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What is the primary hormone discussed that affects cervical ripening during labor in mares?
What is the primary hormone discussed that affects cervical ripening during labor in mares?
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What is the effect of administering oxytocin during the periovulatory period in mares?
What is the effect of administering oxytocin during the periovulatory period in mares?
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Which procedure is associated with the administration of prostaglandins in labor induction?
Which procedure is associated with the administration of prostaglandins in labor induction?
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What is the primary indication for the use of prostaglandin F2α in mares?
What is the primary indication for the use of prostaglandin F2α in mares?
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What primary factor is influenced by cervical musculature sensitivity to prostaglandin E2?
What primary factor is influenced by cervical musculature sensitivity to prostaglandin E2?
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Why might cloprostenol be administered in a reproductive context in mares?
Why might cloprostenol be administered in a reproductive context in mares?
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Which outcome is associated with the use of prostaglandin E2 gel in pregnant heifers?
Which outcome is associated with the use of prostaglandin E2 gel in pregnant heifers?
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What common reproductive issue can arise from cervical failure to dilate?
What common reproductive issue can arise from cervical failure to dilate?
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What role does progesterone play in relation to uterine infections during pregnancy?
What role does progesterone play in relation to uterine infections during pregnancy?
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What effect does PGF2α have on mares in estrus?
What effect does PGF2α have on mares in estrus?
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How long do contractions induced by oxytocin typically last?
How long do contractions induced by oxytocin typically last?
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What is one potential benefit of administering PGE2 to ram semen?
What is one potential benefit of administering PGE2 to ram semen?
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How does estradiol affect the uterus in comparison to progesterone?
How does estradiol affect the uterus in comparison to progesterone?
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What is the effect of PGE2 administration on the oviduct in equines?
What is the effect of PGE2 administration on the oviduct in equines?
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What is the primary action of PGF2α in relation to the cervix?
What is the primary action of PGF2α in relation to the cervix?
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What physiological role does PGE2 play in enhancing spermatozoal transport?
What physiological role does PGE2 play in enhancing spermatozoal transport?
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How does the effect of prostaglandins on uterine contractions differ from that of oxytocin?
How does the effect of prostaglandins on uterine contractions differ from that of oxytocin?
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What is the effect of PGE2 when combined with estrogens for parturition protocols?
What is the effect of PGE2 when combined with estrogens for parturition protocols?
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Study Notes
Therapeutic Uses of Prostaglandins
- Prostaglandin F2α (PGF2α) plays a critical role in uterine health and function by stimulating myometrial activity.
- PGF2α is used clinically to induce estrus in mares by shortening the diestrus phase, thus increasing estrogen levels and cervical dilation.
- In mares with endometritis, PGF2α helps clear uterine infections by increasing uterine contractions and assisting in the removal of inflammatory material.
- PGF2α is used to induce labor in mares when necessary. It is effective for both pre-viable and premature periods of gestation.
Prostaglandin E2 (PGE2) Roles
- PGE2 plays a significant role in gamete and embryo transport through the oviduct by stimulating oviductal smooth muscle contractions.
- Local application of PGE2 relaxes circular smooth muscle of the oviductal isthmus, facilitating embryo transport.
- PGE2 can accelerate spermatozoal transport through the reproductive tract, potentially contributing to increased pregnancy rates after artificial insemination.
- PGE2 can be used to ripen the cervix prior to inducing parturition. It can also be combined with estrogens to further facilitate cervical dilation.
Prostaglandins for Reproductive Management
- PGF2α is used to induce ovulation in mares and to synchronize estrus in a group of mares.
- PGF2α can be used to treat luteal cysts and induce luteolysis in mares.
- PGE2 has been shown to improve oviductal patency and fertility in infertile mares.
- Both PGF2α and PGE2 are being investigated for their potential to improve pregnancy rates in mares.
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Description
This quiz explores the therapeutic uses of prostaglandins, particularly PGF2α and PGE2, in equine reproductive health. Learn how these compounds influence uterine function, aid in labor induction, and promote embryo transport. Whether you are studying veterinary medicine or equine biology, this quiz offers valuable insights into prostaglandin applications.
