Results 151 to 160 of about 2,924 (182)
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Structural studies on equine chorionic gonadotropin
Journal of Protein Chemistry, 1982The amino acid sequence of the α subunit of equine chorionic gonadotropin (eCG, also pregnant mare serum gonadotropin, PMSG) has been determined. Overlapping peptides from tryptic and chymotrypic digests were isolated by a two-dimensional peptide mapping technique and sequenced by the Edman procedure. The proposed amino acid sequence of eCG α is:
Darrell N. Ward +2 more
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Reduction and reoxidation of equine gonadotropin alpha-subunits.
Endocrinology, 1992Ovine (o) and equine (e) LH alpha-subunits were reduced and reoxidized using conditions known to be effective for bovine and human alpha-subunits. The major product of oLH alpha refolding was alpha-subunit monomer. In contrast, eLH alpha formed a 121,000 mol wt aggregate. Monomeric eLH alpha was recovered, but in greatly reduced yield.
Bousfield, George R., Ward, Darrell N.
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Journal of Immunoassay, 1992
A simple, accurate, sensitive enzyme immunoassay (EIA) has been developed that permits the measurement of equine Chorionic Gonadotropin activity in pregnant mare plasmas or serums as well as in commercial and highly-purified preparations. This assay is specific for eCG and eLH which share the same polypeptide structure but differ in their ...
Lecompte, François, Combarnous, Yves
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A simple, accurate, sensitive enzyme immunoassay (EIA) has been developed that permits the measurement of equine Chorionic Gonadotropin activity in pregnant mare plasmas or serums as well as in commercial and highly-purified preparations. This assay is specific for eCG and eLH which share the same polypeptide structure but differ in their ...
Lecompte, François, Combarnous, Yves
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Variations in the properties of equine chorionic gonadotropin
Theriogenology, 1981The objectives of this paper are to review the chemical and biological properties of equine chorionic gonadotropin (eCG, PMSG) isolated from the serum. Comparisons are made with eCG isolated from endometrial cups, trophoblast cell culture medium, and low titer serum.
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Clinical evaluation of equine gonadotropin
American Journal of Obstetrics and Gynecology, 1942Abstract 1. 1. The effect of the pregnant mare's serum hormone in the form of “gonadogen” has been studied in 83 cases in the past three years. 2. 2. In 16 patients with secondary amenorrhea, treated from one to nineteen months, 12 menstruated and 2 were refractory after nine and twelve months of continuous treatment. In the 12 who had cyclic
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The Preparation and Properties of Equine Pituitary Gonadotropin
Journal of the American Pharmaceutical Association (Scientific ed.), 1950A method is described for the alkaline extraction of equine pituitary glands which produced gonadotropic hormone, containing only traces of foreign protein but which was contaminated with posterior pituitary extract. Equine pituitary gonadotropin was found to possess a lower potency than that of serum gonadotropin.
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Journal of Animal Science, 1971
To determine the effect of gonadotropins on the ovulation rate in cows and heifers 55 beef cows and 80 beef heifers were treated with 2 subcutaneous injections of equine gonadotropin (PMS) on Days 5 and 17 of the estrous cycle and 1 intravenous injection of human chorionic gonadotropin (HCG) on the day of estrus or on Day 3 following the second PMS ...
D B, Laster +3 more
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To determine the effect of gonadotropins on the ovulation rate in cows and heifers 55 beef cows and 80 beef heifers were treated with 2 subcutaneous injections of equine gonadotropin (PMS) on Days 5 and 17 of the estrous cycle and 1 intravenous injection of human chorionic gonadotropin (HCG) on the day of estrus or on Day 3 following the second PMS ...
D B, Laster +3 more
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Effects of equine chorionic gonadotropin on reproductive performance in anestrous mink
Journal of Animal Science, 1992The incidence of anestrous mink during the normal breeding season has been reported to be as high as 5%. We sought to induce estrus in these mink by using various doses of equine chorionic gonadotropin (eCG) and human chorionic gonadotropin (hCG). Seventy-five female mink maintained under standard ranch conditions failed to demonstrate estrus during ...
W B, Wehrenberg, K J, Kurt, R J, Hutz
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Effects of the dam on equine chorionic gonadotropin concentrations during pregnancy
Domestic Animal Endocrinology, 1990Breeding trials were designed to determine the influence of the mare on serum concentrations of equine chorionic gonadotropin (eCG) from Day 39 to Day 104 of gestation. Sires were ranked according to mean eCG concentrations found in the groups of randomly selected mares to which they were mated in 1983.
S D, Martinuk, F, Bristol, B D, Murphy
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Immunochemical studies of equine chorionic gonadotropin (eCG), eCG alpha, and eCG beta
Endocrinology, 1993The equine (e) placental glycoprotein hormone eCG plays a critical though not completely understood role during the first trimester of gestation in mares. In the present work, we have developed immunoradiometric assays (m-IRMAs) for detection of eCG, eCG alpha, and eCG beta using combinations of monoclonal antibodies (mAbs) specific for epitopes that ...
Couture, L. +6 more
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