**Meet the editors**

Dr. Rosaria Meccariello received her MSc degree in Biology and PhD degree in Comparative Endocrinology in 1997 and 2004, respectively. Currently, she is an associate professor of Biology at the Department of Movement Sciences and Wellness, "Parthenope" University of Naples, Italy. She has published over 130 papers in peer-reviewed international journals, books, proceedings, and abstract books. She is a reviewer and an editorial board member of international journals, a guest editor of *International Journal of Endocrinology and Frontiers*, a book editor of IntechOpen, and the editor in chief of the journal *Recent Patents on Endocrine, Metabolic and Immune Drug Discovery*. Her expertise is in biology of reproduction, hypothalamus-pituitary-gonad axis, spermatogenesis and sperm quality.

Dr. Rosanna Chianese received her MSc degree in Biology from the University of Naples Federico II, Italy, in 2004, and PhD degree in Comparative Endocrinology from the University of Padua, Italy, in 2008. Currently, she is an assistant professor at the University of Campania "Luigi Vanvitelli." She is a reviewer of international journals and has an experience in editorial activity in InTech and Frontiers. She is an editorial board member of the *Journal of Steroids and Hormonal Science*. Since 2005, she has published 33 articles in international journals, 1 book chapter in InTech, and 27 posters in national and international conferences. She is involved in Poland scientific project evaluation. Her expertise is in biology of reproduction, with a special attention to intragonadal modulators, sperm epigenome and transgenerational epigenetic inheritance mechanisms.

Contents

**Preface VII**

**Perspectives 1**

DMAB Dissanayake

**Parameters 51** Kristina Lasiene

**Reproduction 117**

Chapter 1 **Introductory Chapter: Spermatozoa - Facts and**

Rosanna Chianese and Rosaria Meccariello

Chapter 3 **In Vitro Spermatogenesis; Past, Present, and Future 25**

Chapter 5 **Ultrastructure of Spermatozoa from Infertility Patients 71** Elizaveta E. Bragina and Elena N. Bocharova

Chapter 7 **Physiological and Pathological Roles of Free Radicals in Male**

Qiuqin Tang, Wei Wu, Jing Zhang, Rong Fan and Mu Liu

Eva Tvrdá, Peter Massanyi and Norbert Lukáč

Chapter 8 **Environmental Factors and Male Infertility 159**

Chapter 4 **Assessment of Human Sperm Cells Morphological**

Chapter 6 **Male Accessory Glands and Sperm Function 101** Lozano Hernández Jesús Ricardo

Chapter 2 **Sequence of Germ Cells Differentiation During Spermiogenesis of the Amphibian Urodele Ambystoma dumerilii 9** Mari Carmen Uribe and Sergio Gracia-Fernández
