"This book summarizes in a transparent manner the most recent knowledge about the role of vitamin D in reproductive medicine. The authors focus, in individual chapters, on the explanation of the role played by vitamin D during the consecutive stages of pregnancy starting from conception. It is an excellent and innovative source of knowledge for anyone assisting patients with reproductive problems." - Artur Wdowiak Assoc. Prof., MD, Ph.D., Head of Diagnostic Techniques Unit, Medical University of Lublin, Poland
"This is a first review concerning the comparative analysis of the data about progesterone-like activity of Vitamin D in women. The book might help to understand a gap between the relationship of Vitamin D and progesterone physiological functions in human reproduction. I believe that this book gives an extensive biologic plausibility to the theory that vitamin D levels would be an effective target for fertility improvement and pregnancy outcomes. It appears that the chapter on vitamin D and its progesterone-like action for the general population may have been written based on the most recent trials. However, many questions still remain and will likely fuel ongoing investigation and debate. Are there benefits to vitamin D supplementation regarding fertility outcomes? What is the true benefit on pregnancy outcomes for vitamin D administration in the women population? These questions and others in both fertility and pregnancy will likely keep the book open on vitamin D for the foreseeable future." - Julia Fedotova, Professor, PhD, Department of Chemistry and Molecular Biology, ITMO University, St. Petersburg, Russia
"To date, Vitamin D is fully considered a secosteroid hormone, since it acts on several cellular mechanisms through both genomic and non-genomic pathways. Indeed, accumulating evidence suggests that both calcitriol and, its direct precursor, calcidiol, play a pivotal role to maintain metabolic, hormonal and immune homeostasis in different tissues and microenvironments in humans. In addition, several pieces of evidence support the paramount importance of Vitamin D compounds in human reproduction, both for male and female fertility as well as for several key events such as decidualization, oocyte developmental competence, embryo implantation, placental framework formation, and immune regulation at the maternal-fetal interface. In this scenario, this new book provides a comprehensive summary of the complex mechanisms orchestrated by Vitamin D, from the basic science to the clinical application. I think that this book could be considered a real milestone for gynecologists, obstetricians, endocrinologists, diabetologists and experts of reproductive medicine, since it can be truly helpful to guide the decision-making process in the clinical practice through an evidence-based approach." - Antonio Simone Laganà, M.D., Ph.D., Department of Obstetrics and Gynecology, Filippo Del Ponte Hospital, University of Insubria, Varese, Italy
