background: the availability of testis specific genes will be of help in choosing the most promising biomarkers for the detection of testicular sperm retrieval in patients with non-obstructive azoospermia (noa). testis specific chromodomain protein y 1 (cdy1) is a histone acetyltransferase which concentrates in the round spermatid nucleus, where histone hyperacetylation occurs and causes the re...

background: we performed this study to evaluate use of fresh and frozen sperm samples in non-obstructive azoospermia microdissection testicular sperm extraction (micro-tese-icsi) treatment. methods: we performed a total of 82 consecutive in vitro fertilization (ivf) cycles at fertijin ivf center in istanbul, turkey from january 2010 to march 2012. in 43 participants we used fresh sperm and froz...

abstract: background: the availability of testis specific genes will be of help in choosing the most promising biomarkers for the detection of testicular sperm retrieval in patients with non-obstructive azoospermia (noa). cdy1 histone acetyltransferase is a histone modifier which concentrates in the nucleus of round spermatids, where histone hyperacetylation occurs and causes the replacement of...

Men with congenital absence or bilateral partial aplasia of vas deferens, or those with failed or surgically unreconstructable obstructions or azospermic men with testicular failure or genetic cause can now be treated by using sperm retrieval techniques in conjunction with in vitro fertilization/intra cytoplasmic sperm injection (ICSI/ IVF). These techniques are: Microsurgical epididymal sperm ...

background & objectives : the purpose of this study was to compare the success rate of intracytoplasmic sperm injection cycles (icsi) between infertile war victims & other infertile couples . materials & methods :this retrospective study was done on 672 infertile couples in kossar fertility & impotence center from 2000-2002. poisson, chi-square & t–test were used to compare the icsi results in ...

Microdissection testicular sperm extraction (microTESE) is considered the gold standard method for surgical sperm retrieval among patients with non-obstructive azoospermia (NOA). In this review, we will discuss the optimal evaluation of NOA patients and strategies to medically optimize NOA patients prior to microTESE. In addition, we will also discuss technical principles and pearls to maximize...

INTRODUCTION Testicular sperm extraction with intracytoplasmic sperm injection is the standard treatment for azoospermia. The objective of this study is to identify predictive factors of successful sperm retrieval. MATERIALS AND METHODS Between June 2003 and May 2011, we tried testicular sperm extraction (TESE) in 74 azoospermic patients in the Reproductive Medicine Unit of Son Espases Hospit...

background: there are many studies focused on long or short storage time of epididymal sperm (eps) of different species. there are limited studies on preservation or cryopreservation of the domestic goat eps. objective: the aim of the present study was to evaluate the effects of ex vivo cold-storage on freezing of eps from goat (capra hircus). materials and methods: in a split-plot design the c...

background: the most common chromosomal abnormality due to non-obstructive azoospermia (noa) is klinefelter syndrome (ks) which occurs in 1-1.72 out of 500-1000 male infants. the probability of retrieving sperm as the outcome could be asymmetrically different between patients with and without ks, therefore logistic regression analysis is not a well-qualified test for this type of data. this stu...

In men with prior vasectomy, microsurgical reconstruction of the reproductive tract is more cost-effective than sperm retrieval with in vitro fertilization and intracytoplasmic sperm injection if the obstructive interval is less than 15 years and no female fertility risk factors are present. If epididymal obstruction is detected or advanced female age is present, the decision to use either micr...