Secretion of ovine lymphocyte suppressor factor from curetted uterine luminal cells
Article Abstract:
Ovine intrauterine (UL) monocytes secrete a reproductive phase-specific factor capable of suppressing T-lymphocyte proliferation. The degree of suppressor activity was greatest at day 14 of the reproductive cycle and least after ovariectomy with 14 days of progesterone injections (OVX + P4). A suppressor macromolecule of at least 248,000 molecular weight was eluted by chromatography of the UL supernatant. Thymidine incorporation into DNA of jugular vein monocytes was greatly suppressed by UL cells harvested on day 14 of the cycle as compared to UL cells from OVX + P4 treatment.
Publication Name: Journal of Animal Science
Subject: Zoology and wildlife conservation
ISSN: 0021-8812
Year: 1992
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Influence of the embryo on intrauterine migration in sheep
Article Abstract:
Mechanism of intrauterine migration in sheep was analyzed. Local and systemic exposure to progesterone have the same effect on the timing and frequency of intrauterine migration. Estradiol-releasing beads migrated farther and were recovered from the uterine horn contralateral to the site of introduction in contrast to cholesterol-impregnated beads. Thus, intrauterine migration of sheep embryo may be related to estrogen effects. Moreover, ewes with four embryos in one uterine had only one embryo in the opposite horn. These data may be important in the study of prolific sheep.
Publication Name: Journal of Animal Science
Subject: Zoology and wildlife conservation
ISSN: 0021-8812
Year: 1992
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Rapid communication: nucleotide sequence of porcine and ovine tRNA and ATPase mitochondrial genes
Article Abstract:
The nucleotide sequence of porcine and ovine transfer RNA (tRNA) for lysine and adenosine triphosphatase subunit 8 (ATPase8) mitochondrial genes was described. Several oligonucleotides were used for polymerase chain reaction amplifications of the mitochondrial DNA portion coding for tRNA for lysine and ATPase8 genes. The ovine and porcine tRNA for lysine and ATPase8 genes were separated by a single nucleotide and flanked by the carbon dioxide gene at the 5'-end and the ATPase6 gene at the 3'-end.
Publication Name: Journal of Animal Science
Subject: Zoology and wildlife conservation
ISSN: 0021-8812
Year: 1998
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