Studies on the Antigenic Structure of Some Mammalian Spermatozoa

Fine Structure Observations on the Distribution of Antigenic Sites on Guinea Pig Spermatozoa

The antigenic properties of mammalian spermatozoa have been a topic of interest since the work of Landsteiner before the turn of the century, and the last decade has seen a considerable resurgence of interest in this phenomenon. As many as 16 distinct antigens have been reported to exist on or in mammalian spermatozoa (reviewed by Piko, 1967 ; Metz, 1972) . Weil and Rodenburg (1962), and more r...

I-9: Sperm Trans Fatty Acids: An Undertreated Issue in Men Infertility

Background: Mammalian spermatozoa are characterized by a high proportion of polyunsaturated fatty acids (PUFA) and the membrane structure of spermatozoa plays a crucial role in fertilization. Moreover, dietary fatty acid (FA) influence sperm FA profiles in several species. This study focused on responses to dietary omega-3 fatty acids and comprehensive fatty acid profiles analysis in men as wel...

Studies in Borreliae II. Some Immunologic, Biochemical and Physical Properties of the Antigenic Components of Borrelia turicatae

Frequency of ABO and Rh Blood Groups in Middle School Students of Yazd Province

Abstract Objective The history of the studies on blood groups dates back to early 20th century. More than 600 antigenic structures were detected among 29 blood groups. However, ABO and Rh antigenic structures were taken into consideration in transfusion medicine. Frequency of the blood groups in a community helps the individuals in need and blood bank employees, which could be related to some...

I-8: Sperm Chemotaxis towards Progesterone,A Guiding Mechanism That May Be Used to Select The Best Spermatozoa for Assisted Reproduction

Background: Spermatozoa are able to sense an attractant molecule gradient and as a consequence, orient their movement towards the source of the attractant. This mechanism is known as sperm chemotaxis. In recent years, our laboratory contributed to the knowledge of several features of mammalian sperm chemotaxis. These include the size and physiological state of the chemotactic sperm population, ...