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In Chapter One, Dr. Med. Ioannis Iakovou examines whether the link between weight and bone mineral density is caused by or directly correlated with leptin and adiponectin. Afterwards, Chapter Two by Martha A. Ramirez, Adrian A. Arellano, Fang Xie, Elizabeth A. Benavides, Robin A. Katchko, Luis Ayala, Alexandra Calderon, Rita A. Flores, Jean M. Escudero, Duane H. Keisler, Randy L. Stanko, and Michelle R. Garcia investigates the link between leptin and infertility issues caused by defects of abnormalitie sin the corpus luteum. Chapter Three by Professor Jaak Jürimäe, PhD investigates the link between leptin and energy intake and expenditure by athletes. In Chapter Four, Renata Saucedo, PhD, Jorge Valencia, PhD, Claudia Gutierrez, and Arturo Zarate, PhD examine the connection between increased leptin levels and insulin resistance. Next, Tiziana Maria Sirangelo analyzes the role between leptin and obesity, explaining that leptin plays a crucial role in the regulation of food intake in Chapter Five. In Chapter Six, Federico Sireci, MD, Francesco Cappello, Frank Rikki Canevari, MD, Francesco Dispenza, MD, Salvatore Gallina, PhD, Pietro Salvago, MD, and Francesco Martines study the peptidergic immunohistochemical manifestation of leptin in laryngeal SCCs.

Chapter 1 - Ecological Effects of Biodiversity Chapter 2 - Habitat Destruction Chapter 3 - Habitat Fragmentation Chapter 4 - Deforestation Chapter 5 - Conservation Movement & Ethics Chapter 6 - Marine Protected Area

Obesity is one of the most relevant public health concerns today and it is now evident that body weight control is achieved through highly integrated physiological interactions like nutrient selection as well as being influenced by genetic and environmental factors. Moreover, energy balance regulation is a complex process aimed at maintaining constant energy stores. Presenting a detailed and comprehensive account of the roles of specific peptides in energy balance, food intake control and co-morbidities, this review provides a better understanding of the patho-physiology of energy balance and obesity.

International Series of Monographs in Pure and Applied Biology, Modern Trends in Physiological Sciences, Volume 33: Assay of Protein and Polypeptide Hormones focuses on the assays of protein and polypeptide hormones. The selection first discusses the general principles of protein and polypeptide hormone assays, including conditions and basic factors for bioassays and status of biological assays. The book looks at the assays of hypophyseal hormones, such as growth hormones, adrenocorticotropin (ACTH), thyrotropin, gonadotropins, prolactin, vasopressin, and oxytocin. Concerns include radioimmunoassay, standards of thyrotropin, immunoassay of hypophyseal gonadotropins, and bioassay of prolactin. The book evaluates the assays of pancreatic hormones, such as insulin and glucagon. Chemical structure and properties of insulin and radioimmunoassay of glucagon are explained. The text also focuses on the assays of erythropoietin, renin, human chorionic gonadotropin, and human placental lactogen (HPL). Concerns include augmentation of red cell volume; biological application of renin assays; and similarities and differences between hypophyseal somatotropin and HPL. The selection is a valuable source of data for readers interested in the assays of protein and polypeptide hormones.