Zobrazeno 1 - 10
of 251
pro vyhledávání: '"Harold Papkoff"'
Publikováno v:
International Journal of Peptide and Protein Research. 18:69-78
Pike eel gonadotropins were isolated from pituitary glands by 40% alcohol-6% ammonium acetate, pH 5.1 extraction and were purified by DEAE-cellulose chromatography and electrophoresis into four electrophoretically homogeneous forms. These four isohor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e66f80b0b02601b66f87d5ea8ef7231
https://doi.org/10.1111/j.1399-3011.1981.tb02041.x
https://doi.org/10.1111/j.1399-3011.1981.tb02041.x
Autor:
Harold Papkoff, Thomas A. Bewley
Publikováno v:
International Journal of Peptide and Protein Research. 29:568-573
Pituitary somatotropin (growth hormone) from the sturgeon (Acipenser gulden-stadti) has been studied by zero-order and second-order absorption spectroscopy, as well as by circular dichroism. Difference absorption spectra have also been generated duri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6f1705b92058141be1816f3604db437
https://doi.org/10.1111/j.1399-3011.1987.tb02286.x
https://doi.org/10.1111/j.1399-3011.1987.tb02286.x
Publikováno v:
General and Comparative Endocrinology. 104:253-261
The biopotencies of pituitary gonadotropins (GTHs) from various vertebrate classes were examined in an in vitro rat Sertoli cell bioassay which was previously established for mammalian follicle-stimulating hormones (FSHs). Potencies of the gonadotrop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e829b7ff20ae651ad5604778cc843724
https://doi.org/10.1006/gcen.1996.0168
https://doi.org/10.1006/gcen.1996.0168
Publikováno v:
Aquaculture. 135:27-39
Physiological evidence in white sturgeon Acipenser transmontanus suggests that two gonadotrophins, termed sturgeon gonadotropin I (stGTH I) and sturgeon gonadotropin II (stGTH II), are involved in regulating reproduction. Pituitary and plasma concent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8c32b77ed73d358cfc9266c85dab53a
https://doi.org/10.1016/0044-8486(95)01004-1
https://doi.org/10.1016/0044-8486(95)01004-1
Publikováno v:
Experimental Biology and Medicine. 197:409-415
Mammalian and avian growth hormones (GH) (pituitary derived or biosynthetic) exert two effects on chicken adipose tissue explants in vitro. They (i) increase the basal rate of glycerol release a lipolytic effect) and (ii) inhibit glucagon-stimulated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36d1ee5633ea82bee1a5475b621f03b9
https://doi.org/10.3181/00379727-197-43275
https://doi.org/10.3181/00379727-197-43275
Publikováno v:
Biology of Reproduction. 45:343-349
This study describes the presence of immunoactive and bioactive eCG-like material in full-term placentas of both domestic horses and zebras. Term placental extracts were immunoreactive in an LH monoclonal antibody RIA, and methods successfully used p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61d20e8e0c1f5bed146a3abb2c555faf
https://doi.org/10.1095/biolreprod45.2.343
https://doi.org/10.1095/biolreprod45.2.343
Publikováno v:
Biology of Reproduction. 44:827-833
Six samples of pregnant zebra (z) serum from the first and second trimesters of pregnancy were analyzed by RIA and shown to have chorionic gonadotropin levels comparable to that of the mare (0.9-5.3 micrograms/ml); first trimester levels in most case
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b819f684802a382fc5b7b543f05813b0
https://doi.org/10.1095/biolreprod44.5.827
https://doi.org/10.1095/biolreprod44.5.827
Publikováno v:
Biology of Reproduction. 44:94-101
The rhinoceros is an endangered species related to the horse family, Little is known of its reproductive endocrinology, The objectives of this study were to partially purify rhinoceros pituitary hormones, determine which assays could be used for thei
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15f763edc87cd803a5e2e2bb8b532232
https://doi.org/10.1095/biolreprod44.1.94
https://doi.org/10.1095/biolreprod44.1.94
Autor:
Daniel J. McCormick, Harold Papkoff, Benjamin J. Madden, Elizabeth R. Bergert, Robert J. Ryan
Publikováno v:
Endocrinology. 127:2985-2989
Eight monoclonal antibodies, specific for the glycoprotein hormone alpha-subunit, were raised against human free alpha-subunit, human FSH, or human CG. All of these antihuman monoclonal antibodies were tested for cross-reactivity with alpha-subunits
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::751a30613f4f5de0adb94726cce986e6
https://doi.org/10.1210/endo-127-6-2985
https://doi.org/10.1210/endo-127-6-2985
Autor:
Harold Papkoff
Publikováno v:
Endocrinology. 129:579-581
The glycoprotein hormones of the pituitary gland (LH, FSH, and TSH) each consist of two chemically dissimilar, dissociable, glycosylated protein subunits. One of the subunits (α) is common and identical in primary structure in all three hormones; th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66fbabc2723ecc3ed070c604313598e4
https://doi.org/10.1210/endo-129-2-579
https://doi.org/10.1210/endo-129-2-579