Search Results
Results 101 - 150 of 1535
1 2 3 4 5 6 7 8 9 10 >
AbdelHafez Faten - - 2009
BACKGROUND: Despite interest in cryopreservation of individual or small number of human spermatozoa, to date, little data is available as regards its effectiveness. We systematically reviewed the outcome after cryopreservation of individual or small numbers of human spermatozoa in patients with severe male factor of infertility. METHODS: We searched the ...
Mari G - - 2010
Little information is available on the quality of stallion spermatozoa after sex sorting. The objectives of the present study were to assess the quality of sex-sorted stallion spermatozoa and determine its fertilizing ability after hysteroscopic low dose insemination. Ejaculates from four stallions were collected and sorted by a MoFlo SX ...
Garrido Nicolás - - 2008
Semen analysis, as stated by the World Health Organization, is the only accepted tool to assess male fertility. However its predictive value to assess male capacity to initiate a pregnancy is limited. With the introduction of IVF (especially via intracytoplasmic sperm injection), infertility caused by diminished sperm production is frequently ...
Moemen M N - - 2008
This work aimed to determine the incidence of sperm disomy in infertile men with idiopathic severe oligoasthenoteratozoospermia (OAT). Fifty male subjects were included in this study: 30 infertile men with idiopathic severe OAT and 20 healthy fertile men as controls. Semen analysis, hormonal assay (follicle-stimulating hormone, luteinising hormone and testosterone), ...
Meseguer Marcos - - 2009
To analyze sperm DNA fragmentation (SDF) in testicular sperm samples from patients with azoospermia either from spermatogenic failure or from duct obstruction. Several technologies can be applied in the evaluation of SDF, but given the ease and low costs, the sperm chromatin dispersion test (SCD) has emerged as a promising ...
Hinduja Indira - - 2008
The objective of the present study was to compare the levels of sperm centrin a centrosomal protein that influences cell migration, in normal fertile donors and in oligoasthenozoospermic males (count 5 million/ml and motility <40%, grade c+d) undergoing intracytoplasmic sperm injection (ICSI) and to correlate with the outcome of ICSI. ...
Hayakawa H - - 2009
The use of sexed bull sperm in multiple ovulation and embryo transfer (MOET) programs for Holsteins was evaluated for (1) heifers housed at a commercial embryo transfer (ET) facility (Experiments 1 and 2), and (2) heifers and cows on dairy farms (Experiment 3). In Experiment 1, superstimulated heifers were inseminated ...
Garg Tullika - - 2008
PURPOSE: We examined the rate of successful sperm retrieval, fertilization, pregnancy and live births in patients with obstructive azoospermia and ejaculatory dysfunction who underwent testicular sperm aspiration in conjunction with in vitro fertilization/intracytoplasmic sperm injection using cryopreserved testicular tissue. MATERIALS AND METHODS: We retrospectively reviewed the records of 40 couples ...
Karabinus D S - - 2009
This report provides a summary of MicroSort efficacy in separation of X- from Y-chromosome bearing human sperm (XSort and YSort, respectively), clinical outcomes, and the sex of the resultant babies when sorted sperm were used for intrauterine insemination (IUI), in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI). Clinical trial participants were ...
Robert S - - 2009
BACKGROUND: Platelet microparticles (PMPs) have proved useful to identify patients with vascular risk. However, PMP counting, which is currently done by flow cytometry (FCM), needs to be standardized. OBJECTIVES: The objectives were (i) to standardize FCM settings for PMP counts on a routine instrument (Cytomics FC500) using size-calibrated fluorescent beads; ...
Schouten Jan S A G - - 2009
To provide evidence for the effect of bevacizumab on visual acuity (VA) and central retinal thickness (CRT) in exudative age-related macular degeneration A systematic review of all articles of bevacizumab for exudative AMD was conducted. Articles published up to March 2008 were identified in Medline, Embase, the Cochrane Controlled Trials ...
Foresta Carlo - - 2009
OBJECTIVE: To evaluate the effect of recombinant human follicle-stimulating hormone (FSH) plus human chorionic gonadotropin (hCG) on seminal parameters and pregnancy rate in severe testiculopathies after high FSH plasma concentrations have been suppressed. DESIGN: Prospective, controlled, randomized clinical study. SETTING: Infertility center at a university hospital. PATIENT(S): Eighty-seven men affected ...
Kanto Satoru - - 2009
OBJECTIVE: To examine the outcomes of intracytoplasmic sperm injection (ICSI) with testicular sperm retrieved from men with spinal cord injury. DESIGN: Retrospective study. SETTING: Private hospital-based infertility research laboratory. PATIENT(S): Twenty-two couples of whom one partner was a man with spinal cord injury (SCI). INTERVENTION(S): Reviewing the outcomes of testicular ...
Boman Jason M - - 2008
PURPOSE: Varicocele represents the most common cause of male infertility, and most reports indicate that varicocelectomy has a beneficial effect on male fertility and pregnancy outcome. We evaluated the clinical outcomes of infertile couples with varicocele and isolated asthenospermia who chose to undergo varicocelectomy as well as those who chose ...
McClean Rhett - - 2008
Alternative techniques for the cryopreservation of kangaroo spermatozoa that reduced or eliminated the need for glycerol were investigated including; (1) freezing spermatozoa with 20% glycerol in pre-packaged 0.25 mL Cassou straws to enable rapid dilution of the glycerol post-thaw, (2) investigating the efficacy of 20% (v/v) dimethyl sulphoxide (DMSO) and ...
Belloc Stéphanie - - 2008
More than 17,000 intrauterine insemination (lUI) cycles were analysed retrospectively with respect to outcome according to differing aetiologies of infertility. The quantity and motility of spermatozoa in the final preparation used for insemination had a positive effect on the outcome, as classically observed in the past. It was found that ...
Zini Armand - - 2008
BACKGROUND: Sperm DNA damage is common amongst infertile men and may adversely impact natural reproduction, IUI-assisted reproduction and to a lesser degree IVF pregnancy. The aim of this study was to examine the influence of sperm DNA damage on the risk of spontaneous pregnancy loss after IVF and ICSI. METHODS: ...
Hourvitz Ariel - - 2008
OBJECTIVE: To investigate the efficacy of IVF-intracytoplasmic sperm injection (ICSI) in patients who cryobanked semen before cancer treatment. DESIGN: Retrospective consecutive study. SETTING: University-based IVF unit. PATIENT(S): One hundred eighteen couples undergoing IVF-ICSI using pretreatment frozen sperm. INTERVENTION(S): Treatment follow-up. MAIN OUTCOME MEASURE(S): Semen parameters and clinical pregnancy rates. RESULT(S): ...
Ishikawa Tomomoto - - 2009
OBJECTIVES: To report fertility for men with obstructive (OA) and nonobstructive (NOA) azoospermia after frozen and thawed spermatozoa recovered from the seminiferous tubules and intracytoplasmic sperm injection (ICSI) and to evaluate the factors other than spermatozoa. DESIGN: Retrospective clinical analysis. SETTING: Male infertility clinic for testicular sperm extraction and freezing/thawing ...
Schmidt-Sarosi Cecilia - - 2009
This is the first report of viable pregnancies established with ICSI after 24-hour incubation of washed ejaculated sperm from men with poor sperm parameters. Because both pregnancy rates and viable pregnancy rates were significantly increased compared with 2- to 4-hour-incubated historical controls, 24-hour incubation before ICSI may be beneficial in ...
Flacke Sebastian - - 2008
PURPOSE: To identify predictors of future pregnancy in partners of infertile men undergoing embolization of varicoceles. MATERIALS AND METHODS: This study was conducted within local institutional review board guidelines, and written informed consent was obtained. In 223 clinically infertile men (age range, 18-50 years) with varicoceles and associated oligoteratoasthenospermia, endovascular ...
Burley Lisa M - - 2008
We conducted research to examine the potential impacts ofcoumaphos, fluvalinate, and Apilife VAR (Thymol) on drone honey bee, Apis mellifera L. (Hymenoptera: Apidae), sperm viability over time. Drones were reared in colonies that had been treated with each miticide by using the dose recommended on the label. Drones from each ...
Vialard F - - 2008
The aim of this study was to evaluate the stability of the aneuploidy rate of the first polar body. Knowing the stability of the oocyte aneuploidy rate for each patient would allow the first analysis to be used as a prognostic tool for further attempts at intracytoplasmic sperm injection (ICSI). ...
Ravizzini P - - 2008
We evaluated the efficiency of microdissection testicular sperm extraction (MicroTESE) in patients with nonobstructive azoospermia (NOA) and their pregnancy outcomes in a programme based on in vitro fertilisation (IVF)/intracytoplasmic sperm injection (ICSI). Fifty-six MicroTESE procedures were performed in 53 patients with NOA. Pre-operative levels of luteinising hormone, follicle-stimulating hormone (FSH), ...
Dirican Enver Kerem - - 2008
Magnetic activated cell sorting (MACS) eliminates apoptotic spermatozoa based on the presence of externalized phosphatidylserine residues. We evaluated the outcome of male fertility treatment when intracytoplasmic sperm injection (ICSI) into human oocytes was performed with non-apoptotic MACS-selected spermatozoa. 196 couples were treated by ICSI following spermatozoa preparation by MACS (study ...
Galfano Antonio - - 2009
OBJECTIVE: To evaluate the impact of antegrade scrotal sclerotherapy on seminal parameters and pregnancy rates in varicocele patients who have impairment of seminal parameters and/or couple infertility. DESIGN: Longitudinal, noncomparative study. SETTING: Tertiary university hospital. PATIENT(S): Three hundred sixty-four consecutive varicocele patients with seminal impairment, including 173 (47.5%) patients who ...
Bendikson Kristin A - - 2008
PURPOSE: Men with spermatogenic failure so profound that they are considered as having nonobstructive azoospermia occasionally have spermatozoa in the ejaculate. We compared intracytoplasmic sperm injection outcomes following the injection of ejaculated or surgically retrieved spermatozoa from these men. MATERIALS AND METHODS: A study was performed of intracytoplasmic sperm injection ...
Moustapha, Mohamed Khaled
Objective: To compare the outcome of intracytoplasmic sperm injection (ICSI) with fresh and frozen-thawed testicular spermatozoa in patients with nonobstructive azoospermia. Design: single center clinical trial Materials and methods: Forty seven men with nonobstructive azoospermia in whom testicular sperm was found after testicular sperm extraction were enrolled (25 cases using ...
Pedrana Alisa - - 2008
OBJECTIVE: The aim was to study the most effective method for increasing response rates to postal questionnaires by comparing normal post with registered mail and to assess the cost implications of the two mailing methods. STUDY DESIGN AND SETTING: General Practitioners in Victoria (n=1,550) were randomized to receive a research ...
Mangoli Vs - - 2008
This study was conducted to evaluate the outcomes of assisted reproductive technology (ART) procedures, viz., intrauterine insemination (IUI), in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) in males with impaired spermatogenesis. The subjects of the study were infertile couples who were undergoing ART treatment due to male factor indications. ...
Küçük Tansu - - 2008
OBJECTIVE: To assess the effect of mild heat for the enhancement of sperm fertilizing capacity in intrauterine insemination for male factor infertility associated with asthenospermia. MATERIAL AND METHOD: Prospective, controlled, clinical study. Male factor infertility associated with asthenozoospermia was the criteria for inclusion. Ninety-seven couples were randomized to the study ...
Saacke R G - - 2008
Six-day-old bovine ova/embryos were recovered non-surgically and used as biomonitors to evaluate time of artificial insemination. These embryos/ova provided information regarding fertilization status and embryo quality, as well as quantitative and qualitative data regarding associated accessory sperm. Both sperm access to the ovum (addressed by accessory sperm) and fertilization status/embryo ...
Saacke R G - - 2008
The nature of subfertility due to the male or inseminate is as complex as that of the female. Fertilization failure, and failure in embryogenesis, are both of seminal origin. Males also differ in the number of sperms required to reach their maximum fertilization rate. Males requiring more sperm are considered ...
Papa F O - - 2008
Inseminations with frozen-thawed epididymal sperm have resulted in low-pregnancy rates of mares. If fertility of epididymal sperm could be improved, it would help to preserve genetic material from stallions that have suffered severe injuries, been castrated or have died. The aim of the present study was to investigate the effect ...
Yoshimoto-Kakoi Tomoko - - 2008
The human spermatozoal centrosome acts as a microtubule organizing center and is essential for male and female pronuclear migration and apposition. In this study, we assess centrosomal function of spermatozoa from infertile patients using heterologus intracytoplasmic sperm injection (ICSI) into bovine eggs. Spermatozoa from 15 infertile patients undergoing assisted reproductive ...
Lee Richard - - 2008
Treatments for male factor infertility secondary to reconstructable obstructive azoospermia include either surgical reconstruction or direct sperm retrieval. We examine the risks and benefits of both types of therapies and discuss their respective medical and economic implications. Most male factor infertility studies comparing vasectomy reversal with sperm retrieval favor the ...
Guven Suleyman - - 2008
OBJECTIVE: To identify the predictors of pregnancy rate (PR) among women undergoing intrauterine insemination (IUI) cycles. STUDY DESIGN: Two hundred thirty-two women undergoing 255 IUI cycles were retrospectively evaluated according to clinical and semen characteristics in terms of PRs. RESULTS: The overall PR was 9.4%. The PR was 7.9% in ...
Gjerris A C - - 2008
BACKGROUND: Women pregnant after assisted reproductive techniques (ART) are generally older than women with spontaneously conceived pregnancies, and are consequently more likely to carry a child affected by a chromosomal disorder. Furthermore, a significantly increased rate of chromosomal abnormalities after intracytoplasmatic sperm injection (ICSI) has been reported. The aim of ...
Mehrafza, Marzieh
Backgroud: Intrauterine insemination (IUI) is generally attempted before proceeding to more expensive and invasive assisted reproductive techniques such as invitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI). This procedure is most commonly performed as a therapeutic method for couples with a wide variety of subfertility etiologies, such as low count ...
Kanto Satoru - - 2008
OBJECTIVE: To compare the fertilization and pregnancy rates using fresh testicular sperm between nonobstructive azoospermic (NOA) patients and obstructive azoospermic (OA) patients. DESIGN: We evaluated sperm quality of testicular sperm retrieved by microdissection testicular sperm extraction (MD-TESE) in NOA patients and compared the fertilization rate and pregnancy rate via intracytoplasmic ...
Esfandiari Navid - - 2008
OBJECTIVE: To report a case of an ongoing twin pregnancy resulting from rescue intracytoplasmic sperm injection (ICSI) after failed fertilization of morphologically abnormal oocytes. DESIGN: Case report. SETTING: Tertiary center for assisted reproductive technology (ART). PATIENT(S): A 28-year-old woman with primary infertility due to tubal obstruction. INTERVENTION(S): Rescue ICSI after ...
Farley Brian M - - 2008
Most sexually reproducing metazoans are anisogamous, meaning that the two gametes that combine during fertilization differ greatly in size. By convention, the larger gametes are considered female and are called ova, while the smaller gametes are male and are called sperm. In most cases, both gametes contribute similarly to the ...
Muratori Monica - - 2009
Fertilization is a stepwise process that allows two mature gametes to reach each other, fuse and eventually give rise to a new individual. Despite the tremendous importance of reproduction for species development and maintenance, fertility is decreasing worldwide, with peaks in western countries. It is estimated that about 7% of ...
Karunakaran M - - 2009
Male Naga pig of India, a miniature breed is known for its meat quality and early puberty. No scientific efforts were made to verify the farmers' view that this breed reaches puberty at around 2 months of age. A preliminary study was, therefore, conducted with the objectives: (a) to find ...
Haimov-Kochman Ronit - - 2009
OBJECTIVE: To determine the predictive value and the quality of supernatant sperm (SS) achieved by a simple laboratory technical modification after testicular sperm extraction (TESE). DESIGN: A retrospective analysis. SETTING: An IVF unit in a university medical center. PATIENT(S): Azoospermic patients undergoing TESE between January 2001 and December 2006. INTERVENTION(S): ...
Gandini Roberto - - 2008
PURPOSE: To retrospectively evaluate the recurrence rate, resolution of pain, improvement of semen parameters, and achievement of pregnancy after transcatheter foam sclerotherapy (TCFS) in varicocele by using sodium tetradecyl sulfate (STS) foam. MATERIALS AND METHODS: The institutional review board approved the study; informed consent was waived. A retrospective study was ...
Yamada Takahiro - - 2008
We present the first report of complete hydatidiform mole (HM) with coexisting dichorionic diamniotic twins. This pregnancy was achieved after testicular sperm extraction and intracytoplasmic sperm injection (ICSI) for azoospermia in the woman's husband. Standard in vitro fertilization may cause multisperm fertilization and increase triploid partial HM and complete HM, ...
Keeling Jon - - 2008
Melasma is a common hyperpigmentation disorder that typically affects women, though up to 10% of white individuals seeking treatment for melasma are men. Melasma can be a source of embarrassment for men because of its association with women and pregnancy. We performed a case series assessing the use of mequinol ...
Andersson A-M - - 2008
Healthy men produce an enormous number of sperms, far more than necessary for conception. However, several studies suggest that semen samples where the concentration of sperms is below 40 mill/mL may be associated with longer time to pregnancy or even subfertility, and specimens where the concentration of sperms is below ...
Wong Alexander - - 2008
OBJECTIVES: To compare the aniline blue assay with and without eosin, and to correlate the results with pregnancy outcome after intracytoplasmic sperm injection (ICSI) procedure. DESIGN: A retrospective study. SETTING: University-based fertility center. PATIENT(S): One hundred thirty infertile patients. INTERVENTION(S): Left-over washed sperm after each ICSI procedure were fixed on ...
1 2 3 4 5 6 7 8 9 10 >