Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 11 of 11 for “"maternal recognition of pregnancy"”.
-
ROLE OF OXYTOCIN AND OXYTOCINASE IN THE MATERNAL RECOGNITION OF PREGNANCY
This thesis involved the investigation of luteal, endometrial and embryonic putative gene regulators in the maternal recognition of pregnancy in the horse, with an emphasis on understanding the role of oxytocin and oxytocinase in early pregnancy. The first objective was to validate the safety and …
-
The Influence of Preovulatory Estradiol on Uterine Transcriptomics and Proteomics Around Maternal Recognition of Pregnancy in Beef Cattle
… has been reported to play a crucial role in pregnancy establishment and maintenance, but the mechanism by which estradiol exerts its effects has not been well characterized. Specifically, the interactions between the maternal uterine environment and the developing conceptus can greatly impact …
-
The Effects of Preovulatory Estradiol on the Uterine Environment and Conceptus Survival From Fertilization to Maternal Recognition of Pregnancy
… has been reported to play a critical role in pregnancy establishment and embryonic survival, but the mechanism by which estradiol exerts its effects has not been well characterized. The objective of this thesis is to determine the effects of preovulatory estradiol on the uterine environment …
-
Identification of a Gonadotropin Releasing Hormone-Like Factor in the Rabbit Placenta (Pregnancy, Corpus Luteum, Fetus)
First objective was to determine day at which maternal recognition of pregnancy occurs in the doe. We examined the effect of embryo removal on progesterone (P(,4)) and luteinizing hormone (LH) levels in pregnant does. We found that P(,4) and LH profiles of pregnant does that had embryos removed …
-
The type I IFN of Bos taurus
… to rapid expansion in the number and complexity of their genes. IFNT, which is a unique Type I IFN restricted to pecoran ruminants, also has a specialized role in maternal recognition of pregnancy in cattle. This work has two main aims 1) determine whether male and female blastocysts differ in …
-
Development of an Interferon Bioassay and Primitive Endoderm Cell Lines to Study Lineage Specification During Early Bovine Embryogenesis
… wastage is rampant in cattle during early stages of pregnancy, particularly the first few weeks of gestation, a time recognized for significant remodeling of the embryo. Of particular interest to this laboratory are the first two lineage specification events, trophectoderm (TE) and primitive …
-
Equine Trophectoderm Cells and Their Role in Fetal-Maternal Recognition
Establishment and maintenance of a successful pregnancy requires signaling from the embryo to the mare, a process known as maternal recognition. Six days after fertilization, the trophectoderm (TE), a placenta precursor is formed. Signals emanating from the TE to the uterine environment are …
-
Biological role of conceptus derived factors during early pregnancy in ruminants
In cycling domestic animals, pregnancy loss during early gestation is a major cause of infertility. The majority of pregnancy loss during this time is due to errors in mitotic division early in development, or occurs later in gestation and is characterized by endometrial dysfunction, or asynchrony …
-
Developmental Regulation of Prion Expression in Cattle and Mouse Embryonic Stem Cells
… conversion into a conformationally-altered isoform (PrPSc) widely believed to be the pathogenic agent of transmissible spongiform encephalopathies (TSEs). Thus, tissues expressing PrPC are potential sites for conversion of PrPSc during TSE pathogenesis. Although much is known about the role of …
-
Determining the role of nerve growth factor-beta in seminal plasma on bovine reproduction
… (NGF) is a protein found in the seminal plasma of a variety of mammalian species. While initially known for regulating neuronal survival and differentiation, it was later discovered to interact within the endocrine and reproductive systems as well. Most notable is its function in camelids as an …
-
Advanced Studies in Veterinary Anatomy: Angiogenesis in Caprine Reproductive Organs of Non-Pregnant and Pregnant Normal and Swainsonine-Treated Does
… endothelial growth factor (VEGF) signaling often represents a critical rate-limiting step in physiological and pathological angiogenesis. This study utilizes development of utero-ovarian vasculature during pregnancy in goats as a model of physiological angiogenesis. Non-pregnant does and …