Received on: April 28, 2009 – Accepted on: Oct 15, 2009 aBstRact Azoospermia is defined as the absence of mature spermatozoa in semen analysis after centrifugation. The causes of azoospermia may be related to spermatogenesis defects and classified as nonobstructive azoospermia, or to the obstruction of the efferent ducts of the genital tract and classified as obstructive azoospermia. Before the...

The aim of this prospective randomized study was to determine if the use of intracytoplasmic morphologically selected sperm injection (IMSI) is associated with gender incidence. Couples who underwent IVF-preimplantation genetic screening (PGS) cycles, as a result of advanced maternal age, were randomly allocated into two groups: intracytoplasmic sperm injection (ICSI; n=80) or intracytoplasmic ...

Retraction The Editors-in-Chief are retracting this article [1] because the study was not conducted with the appropriate ethical oversight. Contrary to the statement in the article that ethics committee approval was not required, an investigation by the Arcispedale Santa Maria NuovaIRCCS has determined that the study should have been reviewed and approved by an ethics committee. All authors agr...

OBJECTIVE To identify the role of Interleukin-l Beta(IL-1β) in patients undergoing intracytoplasmic sperm injection. METHODS The quasi-experimental study was conducted at an infertility clinic in Islamabad from June 2010 to August 2011, and comprised couples opting for intracytoplasmic sperm injection. Down regulation of ovaries was followed by calculated stimulation, ovulation induction, ooc...

Although intracytoplasmic sperm injection (ICSI) allows proper fertilization in most cases of male sub fertility, it is one of the most unphysiological techniques in assisted reproductive technologies (ART). Thus, over the last decade, researchers have tried to improve sperm observation with higher-resolution microscopy techniques such as the intracytoplasmic morphologically selected sperm inje...

OBJECTIVE The aim of this study was to evaluate the efficiency of the intracytoplasmic morphologically selected sperm injection (IMSI) technique compared with conventional ICSI and previous ICSI attempts in oligo-astheno-teratozoospermia (OAT) patients. METHODS The sperms were selected under high magnification (6,600×) and used to induce fertilization in previous ICSI patients by IMSI. These ...

BACKGROUND Intracytoplasmic morphologically selected sperm injection (IMSI) is still proposed and employed in the clinical practice to improve the reproductive outcome in infertile couples scheduled for conventional intracytoplasmic sperm injection (cICSI). The aim of the current randomized controlled trial (RCT) was to test the hypothesis that IMSI gives a better live birth delivery rate than ...

background: recent studies of uterine contractility in ivf�embryo transfer led us to consider an alternative, and possibly complementary, explanation for the high implantation rates of blastocysts. it has been demonstrated that myometrial contractile activity influences embryo implantation, possibly through mechanical displacement of embryos. objective: the aim of this study was to examine the ...