ArticleIn Vitro Inhibition of Spontaneous Contractions of the Rat Uterus by Relaxin-Containing Extracts of Sow OvariesWilbur H. Sawyer, Edward H. Frieden, and A. C. MartinWilbur H. SawyerFrom the Biological Laboratories, Harvard University, Cambridge, Massachusetts, and the Arthritis Laboratory, Tufts College Medical School, Boston, Massachusetts, Edward H. FriedenFrom the Biological Laboratories, Harvard University, Cambridge, Massachusetts, and the Arthritis Laboratory, Tufts College Medical School, Boston, Massachusetts, and A. C. MartinFrom the Biological Laboratories, Harvard University, Cambridge, Massachusetts, and the Arthritis Laboratory, Tufts College Medical School, Boston, MassachusettsPublished Online:28 Feb 1953https://doi.org/10.1152/ajplegacy.1953.172.3.547MoreSectionsPDF (845 KB)Download PDF ToolsExport citationAdd to favoritesGet permissionsTrack citations ShareShare onFacebookTwitterLinkedInWeChat Previous Back to Top Next Download PDF FiguresReferencesRelatedInformation Cited ByRelaxin: New Pathophysiological Aspects and Pharmacological Perspectives for an Old Protein11 February 2013 | Medicinal Research Reviews, Vol. 34, No. 1Relaxin for preventing preterm birth16 August 2013 | Cochrane Database of Systematic Reviews, Vol. 12Relaxin for preventing preterm birth in threatened preterm labour12 September 2012Characteristics of β‐adrenergic receptors in longitudinal muscle membranes of rat uterus: Changes in kinetic properties of the receptor during gestation4 December 1998 | Journal of Molecular Recognition, Vol. 9, No. 3Effects of porcine relaxin on contraction, membrane response and cyclic AMP content in rat myometrium in comparison with the effects of isoprenaline and forskolin19 July 2012 | British Journal of Pharmacology, Vol. 104, No. 4Relaxin-like peptide in ascidiansGeneral and Comparative Endocrinology, Vol. 79, No. 3Endocrine Control of ParturitionThe effect of relaxin on calcium fluxes in the rat uterusAmerican Journal of Obstetrics and Gynecology, Vol. 159, No. 6Synergistic effect of relaxin and progesterone on cyclic adenosine 3′,5′-monophosphate levels in the rat uterusAmerican Journal of Obstetrics and Gynecology, Vol. 159, No. 6The effect of in vivo progesterone administration on relaxin-inhibited rat uterine contractionsAmerican Journal of Obstetrics and Gynecology, Vol. 148, No. 7RelaxinThe relationship among ovarian condition, steroid hormones, and estrous behavior inAnolis carolinensisJournal of Experimental Zoology, Vol. 227, No. 1The effect of relaxin and progesterone on rat uterine contractionsAmerican Journal of Obstetrics and Gynecology, Vol. 145, No. 4Relaxin inhibits prostacyclin release by the rat pregnant myometriumProstaglandins, Vol. 24, No. 2Bioassay Methods for Relaxin: Uses and Pitfalls29 September 2011RELAXIN AT PARTURITION IN THE PIGRELAXIN: SPECULATIONS ON ITS PHYSIOLOGICAL IMPORTANCE IN SOME NONMAMMALIAN SPECIES?Annals of the New York Academy of Sciences, Vol. 380, No. 1 RelaxinRelaxin – A ReviewThe Australian and New Zealand Journal of Obstetrics and Gynaecology, Vol. 21, No. 4Characterization of the binding of 125I-relaxin to rat uterus.Journal of Biological Chemistry, Vol. 255, No. 8The myometrium and the relaxin enigmaAnimal Reproduction Science, Vol. 2, No. 1-3Relaxinresponse of relaxin-treated rat uterus to prostaglandins and oxytocinProstaglandins, Vol. 14, No. 4ReferencesOrientierende ÜbersichtThe isolation and purification of an ovarian polypeptide with uterin-relaxing activityBiochimica et Biophysica Acta (BBA) - Protein Structure, Vol. 140, No. 1Orientierende ÜbersichtErgebnisse der Physiologie Biologischen Chemie und Experimentellen Pharmakologie, Vol. 58, No. 1Immunohistological and histochemical localization of relaxin in the metrial gland of the pregnant ratAmerican Journal of Anatomy, Vol. 117, No. 3RelaxinFemale Gonadal HormonesSECTION OF BIOLOGICAL AND MEDICAL SCIENCES: RELAXIN ASSAY METHODS*30 April 2012 | Transactions of the New York Academy of Sciences, Vol. 25, No. 3 Series IIRelaxinA New Approach To the Management of Obliterative Peripheral Arterial Disease2 July 2016 | Angiology, Vol. 11, No. 5THE EFFECT OF RELAXIN ON THE CONTRACTILITY OF THE HUMAN PREGNANT UTERUS. A Tocographic StudyBJOG: An International Journal of Obstetrics and Gynaecology, Vol. 66, No. 4HISTORICAL ASPECTS OF RELAXINAnnals of the New York Academy of Sciences, Vol. 75, No. 2 The UterusBIOCHEMISTRY OF NONSTEROIDAL OVARIAN HORMONESAnnals of the New York Academy of Sciences, Vol. 75, No. 2 The UterusTHE EFFECTS OF ESTROGENS, PROGESTAGENS, AND RELAXIN IN PREGNANT AND NONPREGNANT LABORATORY RODENTSAnnals of the New York Academy of Sciences, Vol. 75, No. 2 The UterusTHE ACTION OF RELAXIN ON THE UTERUS OF THE RAT, MOUSE, AND RABBITAnnals of the New York Academy of Sciences, Vol. 75, No. 2 The UterusEFFECTS OF RELAXIN ON THE NONPREGNANT AND PREGNANT UTERUSAnnals of the New York Academy of Sciences, Vol. 75, No. 2 The UterusEFFECTS OF RELAXIN ON TERM AND PREMATURE LABORAnnals of the New York Academy of Sciences, Vol. 75, No. 2 The UterusNON-STEROID OVARIAN HORMONES. FRACTIONATION OF RELAXIN-CONTAINING EXTRACTS ON OXIDIZED CELLULOSE AND DOWEX 50Journal of Biological Chemistry, Vol. 222, No. 2Relaxin, the third ovarian hormone: Its experimental use in womenAmerican Journal of Obstetrics and Gynecology, Vol. 71, No. 5 More from this issue > Volume 172Issue 3February 1953Pages 547-552 Copyright & PermissionsCopyright © 1953 by American Physiological Societyhttps://doi.org/10.1152/ajplegacy.1953.172.3.547PubMed13030784History Received 30 November 1952 Published online 28 February 1953 Published in print 28 February 1953 Metrics