Testicular sperm retrieval techniques associated with intracytoplasmic sperm injection have changed the field of male infertility treatment and given many azoospermic men the chance to become biological fathers. Despite the current use of testicular sperm extraction, reliable clinical and laboratory prognostic factors of sperm recovery are still absent. The objective of this article was to revi...

OBJECTIVE Aproximately 10% of patients with non-obstructive azoospermia and 5% with non-obstructive severe oligozoospermia carry AZF region microdeletions (AZoospermic Factor) in the Y chromosome. The aim of this study is to analize the clinical and pathological findings in this group of patients and compare them with the previous evidence. MATERIAL AND METHODS Retrospective study of 11 patie...

INTRODUCTION Male infertility caused by azoospermia due to non-reconstructable obstruction or non-obstructive azoospermia can be treated by microsurgical epididymal aspiration (MESA) or testicular sperm extraction (TESE) followed by an intracytoplasmatic spermatozoa injection (ICSI). MATERIAL AND METHODS From 9/93 to 6/01, we carried out 1,025 ICSI procedures with aspirated epididymal or test...

A male factor is the only cause of infertility in 30% to 40% of couples. Most causes of male infertility are treatable, and the goal of many treatments is to restore the ability to conceive naturally. Varicoceles are present in 15% of the normal male population and in approximately 40% of men with infertility. Varicocele is the most common cause of male infertility that can be corrected surgica...

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background infertility is a serious social problem in advanced nations, with male factor in half of all cases of infertility. this study was conducted to determine the regenerative effect of bone marrow-derived stem cells in spermatogenesis of infertile hamster. methods twelve adult male hamsters were equally divided into azoospermic and control groups. busulfan was intraperitoneally used for i...