1986
DOI: 10.1016/0378-4320(86)90100-4
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Estrone and estrone conjugate plasma levels throughout pregnancy in the goat: Their determination as a pregnancy diagnosis test

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Cited by 8 publications
(5 citation statements)
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“…This suggests that most of E 1 synthesized by the feto-placental unit is immediately conjugated to E 1 -S in the placentomes, this could be a precautionary measure so as to ameliorate any deleterious effect of excessive unconjugated estrogen on maternal tissues during gestation. Regardless of species difference between the doe [9] and cow [5], the trend of E 1 -S profile is comparable with the concentration increasing steadily from low levels in early gestation to peak levels of late gestation. However, the pig exhibits two distinct E 1 -S peaks; one in early gestation and other in pre-partum [8].…”
mentioning
confidence: 67%
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“…This suggests that most of E 1 synthesized by the feto-placental unit is immediately conjugated to E 1 -S in the placentomes, this could be a precautionary measure so as to ameliorate any deleterious effect of excessive unconjugated estrogen on maternal tissues during gestation. Regardless of species difference between the doe [9] and cow [5], the trend of E 1 -S profile is comparable with the concentration increasing steadily from low levels in early gestation to peak levels of late gestation. However, the pig exhibits two distinct E 1 -S peaks; one in early gestation and other in pre-partum [8].…”
mentioning
confidence: 67%
“…The presence of detectable E 1 -S levels in maternal peripheral plasma and it's subsequent fluctuation has frequently been noted as an indicator of fetal viability in a number of species. In the doe [9] and sow [3], a relationship between the number of concepti and maternal E 1 -S levels has also been established. In the cow too, earlier studies have attempted to characterize maternal plasma E 1 -S profiles in singleton bearing cows [1,5].…”
mentioning
confidence: 99%
“…The increased plasma progesterone during pregnancy is due to increase litter size in sheep (Butler et al, 1981). Serum estrone sulfate was found to be positively correlated with number of fetuses in does (Thimonier et al, 1977;Tamanini et al, 1986;Refsal et al, 1991). Maternal serum progesterone concentrations are positively correlated with the number of Copora lutea (Quirke et al, 1979).…”
Section: Introductionmentioning
confidence: 94%
“…In normally cycling Shiba goats, the concentrations of E 2 -17β at estrus [ 14 , 15 , 17 ] were reported to be approximately 20–30 pg/ml. In pregnant goats approaching parturition, it was reported that the concentration of E 2 -17β in maternal circulation reaches maximally 10-fold as much as that at estrus, while estrone and estradiol-17α become 10- to 15-fold higher than E 2 -17β [ 28 , 29 , 30 , 31 , 32 , 33 , 34 ]. Studies in sheep [ 35 ], humans [ 36 , 37 ] and rats [ 36 ] suggested that estrone and estradiol-17α have about 20–60% binding affinities to estrogen receptors relative to E 2 -17β.…”
Section: Discussionmentioning
confidence: 99%