Relaxin bioactivity and immunoactivity in human corpora lutea. 1978

E M O'Byrne, and J F Flitcraft, and W K Sawyer, and J Hochman, and G Weiss, and B G Steinetz

Relaxin-like activity in extracts of corpora lutea (CL) from pregnant and non-pregnant women was determined by radioimmunoassay and by guinea pig pubic symphysis palpation assay. The biologically determined activity paralled the immunoactivity of extracts of CL of pregnancy. The relaxin content of CL of non-pregnant women was too low for detection by the bioassay.

UI MeSH Term Description Entries
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D011631 Pubic Symphysis A slightly movable cartilaginous joint which occurs between the pubic bones. Pubic Symphyses,Symphyses, Pubic,Symphysis, Pubic
D011863 Radioimmunoassay Classic quantitative assay for detection of antigen-antibody reactions using a radioactively labeled substance (radioligand) either directly or indirectly to measure the binding of the unlabeled substance to a specific antibody or other receptor system. Non-immunogenic substances (e.g., haptens) can be measured if coupled to larger carrier proteins (e.g., bovine gamma-globulin or human serum albumin) capable of inducing antibody formation. Radioimmunoassays
D012065 Relaxin A water-soluble polypeptide (molecular weight approximately 8,000) extractable from the corpus luteum of pregnancy. It produces relaxation of the pubic symphysis and dilation of the uterine cervix in certain animal species. Its role in the human pregnant female is uncertain. (Dorland, 28th ed) Relaxin B
D003338 Corpus Luteum The yellow body derived from the ruptured OVARIAN FOLLICLE after OVULATION. The process of corpus luteum formation, LUTEINIZATION, is regulated by LUTEINIZING HORMONE. Corpora Lutea,Lutea, Corpora
D005260 Female Females
D006168 Guinea Pigs A common name used for the genus Cavia. The most common species is Cavia porcellus which is the domesticated guinea pig used for pets and biomedical research. Cavia,Cavia porcellus,Guinea Pig,Pig, Guinea,Pigs, Guinea
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001681 Biological Assay A method of measuring the effects of a biologically active substance using an intermediate in vivo or in vitro tissue or cell model under controlled conditions. It includes virulence studies in animal fetuses in utero, mouse convulsion bioassay of insulin, quantitation of tumor-initiator systems in mouse skin, calculation of potentiating effects of a hormonal factor in an isolated strip of contracting stomach muscle, etc. Bioassay,Assay, Biological,Assays, Biological,Biologic Assay,Biologic Assays,Assay, Biologic,Assays, Biologic,Bioassays,Biological Assays

Related Publications

E M O'Byrne, and J F Flitcraft, and W K Sawyer, and J Hochman, and G Weiss, and B G Steinetz
July 1971, Endocrinology,
E M O'Byrne, and J F Flitcraft, and W K Sawyer, and J Hochman, and G Weiss, and B G Steinetz
October 1946, Endocrinology,
E M O'Byrne, and J F Flitcraft, and W K Sawyer, and J Hochman, and G Weiss, and B G Steinetz
November 1973, The American journal of physiology,
E M O'Byrne, and J F Flitcraft, and W K Sawyer, and J Hochman, and G Weiss, and B G Steinetz
September 1984, Biology of reproduction,
E M O'Byrne, and J F Flitcraft, and W K Sawyer, and J Hochman, and G Weiss, and B G Steinetz
October 1980, Endocrinology,
E M O'Byrne, and J F Flitcraft, and W K Sawyer, and J Hochman, and G Weiss, and B G Steinetz
March 1980, American journal of obstetrics and gynecology,
E M O'Byrne, and J F Flitcraft, and W K Sawyer, and J Hochman, and G Weiss, and B G Steinetz
April 1984, Endocrinology,
E M O'Byrne, and J F Flitcraft, and W K Sawyer, and J Hochman, and G Weiss, and B G Steinetz
January 1982, Annals of the New York Academy of Sciences,
E M O'Byrne, and J F Flitcraft, and W K Sawyer, and J Hochman, and G Weiss, and B G Steinetz
February 1978, Biology of reproduction,
E M O'Byrne, and J F Flitcraft, and W K Sawyer, and J Hochman, and G Weiss, and B G Steinetz
August 1977, Biology of reproduction,
Copied contents to your clipboard!