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Chapter category: Endocrine

Relaxin Physiology in the Female Reproductive Tract during Pregnancy

This chapter appears in the following book:

Relaxin and Related Peptides

Edited by: Alexander I. Agoulnik
ISBN: 978-0-387-74670-8
» Get more information about this book at landesbioscience.com «

Chapter authors:
Laura J. Parry and Lenka A. Vodstrcil


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The characteristic functions of relaxin are associated with female reproductive tract physiology. These include the regulation of biochemical processes involved in remodeling the extracellular matrix of the cervix and vagina during pregnancy and rupture of the fetal membranes at term. Such modifications enable the young to move unimpeded through the birth canal and prevent dystocia. However, relaxin’s physiological actions are not limited to late gestation. New functions for this peptide hormone in implantation and placentation are also emerging. Relaxin promotes uterine and placental growth and influences vascular development and proliferation in the endometrium. This chapter provides an overview of the current literature on relaxin physiology in the uterus, cervix and vagina of pregnant females and the impact on fetal health. It also outlines the potential mechanisms of relaxin action, particularly in the cervical extracellular matrix and uterine endometrium.

Laura J. Parry
Department of Zoology, University of Melbourne

Lenka A. Vodstrcil
Department of Zoology, University of Melbourne

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Additional chapters from this book:

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Relaxin Physiology in the Female Reproductive Tract during Pregnancy

Laura J. Parry and Lenka A. Vodstrcil

The characteristic functions of relaxin are associated with female reproductive tract physiology. These include the regulation of biochemical processes involved in remodeling the extracellular matrix ...

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Relaxin and INSL3 are novel autocrine/paracrine insulin‑like hormones in tumor biology. Both effectors can bind to and activate the leucine‑rich G‑protein coupled receptors LGR7 (rel...


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