EDITOR'S PREFACE: The first three papers in this issue of Biology of Reproduction address the cellular and molecular biology of the corpus luteum in terms of its formation, function, and regression. Two of the papers, “Models of Luteinization,” by Bruce D. Murphy and “Phosphorylation of Myristoylated Alanine-Rich C Kinase Substrate (MARCKS) Protein Is Associated with Bovine Luteal Oxytocin Exocytosis,” by Ugur Salli, Sara Supancic, and Fredrick Stormshak, are minireviews. They were derived from talks delivered as part of a minisymposium at the 32nd Annual Meeting of the Society for the Study of Reproduction, from 31 July 1999 to 3 August 1999 in Pullman, WA. The minsymposium, Cellular and Molecular Regulation of Luteal Formation, Function, and Regression, was organized by Dr. E. Keith Inskeep. The third paper, “Increased Expression of Insulin-Like Growth Factor Binding Protein-1 During Induced Regression of Bovine Corpora Lutea,” by B.L. Sayre, R. Taft, E.K. Inskeep, and J. Killefer, is an original research report that fills out the unit. All three papers were submitted to the Editorial Office of Biology of Reproduction and were subjected to same standards of peer review as are all manuscripts published in the journal. I am pleased that this trio of papers is being published in Biology of Reproduction, and that a figure from the minireview by Salli et al., depicting a proposed role of MARCKS protein in PGF2α-stimulated exocytosis, graces the cover of this volume of Biology of Reproduction.
Virenda B. Mahesh, Ph.D., D.Phil., Editor in Chief, Biology of Reproduction
