Search Results
Results 51 - 100 of 1520
1 2 3 4 5 6 7 8 9 10 >
Chun Sang Sik - - 2010
In this prospective clinical study involving 354 IVF-intracytoplasmic sperm injection cycles, we determined the influence of the length of the uterine cavity on clinical pregnancy rates. Our data showed that clinical pregnancy and implantation rates are associated positively with an increased length of the uterine cavity.
García-Herrero Sandra - - 2010
OBJECTIVE: To differentiate transcripts' expression in the sperm from patients who achieved pregnancy in their first IUI cycle from those who did not. Basic sperm analysis is limited to forecasting pregnancies by means of assisted reproduction. New assays, such as microarray analysis, are potential predictive tools for this purpose. DESIGN: ...
Mart?nez M Carmen - - 2010
In our series, a very high prevalence of chromosomal abnormalities was observed in spontaneous miscarriages, irrespective of how pregnancy was achieved, by assisted reproductive technology (ART) or natural conception. This high prevalence was equally represented in both groups, with no statistical difference in type of chromosomal abnormalities or in total ...
Fauque Patricia - - 2009
The objective of this retrospective study was to describe a population of patients displaying impaired sperm motility due to ultrastructural flagellar defects and to analyse the intracytoplasmic sperm injection (ICSI) results and neonatal outcomes in this population. The fertilization rate, embryo quality, clinical pregnancy rate, implantation rate, birth rate and ...
Underwood S L - - 2010
Two field trials were conducted to determine the fertilising capacity of (i) frozen-thawed, sex-sorted re-frozen-thawed (FSF) dairy bull sperm inseminated close to the time of ovulation, (ii) FSF sperm following large dose insemination, and frozen-thawed, sex-sorted (FS) sperm inseminated within 12h after sorting. In Trial 1, 24 heifers in synchronised ...
Borini Andrea - - 2009
The aim of this work was to evaluate the efficiency of IVF and intracytoplasmic sperm injection (ICSI) when few eggs available for insemination. A total of 601 women (group A, mean age 31.2 +/- 2.8 years) who were undergoing a total of 671 assisted reproduction cycles donated their excess oocytes ...
Haimov-Kochman R - - 2010
The aetiology of cryptorchidism is still undiscernible in the majority of cases. It has long been argued that cryptorchidism reflects a primary testicular maldevelopment, where the contralateral scrotal testis also suffers from aspermatogenesis and low spermatogonia count. The aim of the study was to determine the reproductive outcome of ex-cryptorchid ...
Banker Manish R - - 2009
Globozoospermia is a severe form of teratozoospermia characterized by round-headed acrosomeless spermatozoa. Here we present two successful pregnancies and a live birth after intracytoplasmic sperm injection.
Al-Fifi Suliman - - 2009
Intracytoplasmic sperm injection (ICSI) procedures have become accepted worldwide and their effect on society is well-known. However, the full extent of the possible complications of these procedures on maternal and neonatal outcome is still unclear. This is a retrospective case controlled study from January 2003 to December 2007 which compared ...
Ozguner Meltem - - 2009
A prospective study was planned to determine the relationship between post swim-up acrosome index (AI) evaluation and fertilization outcomes in an in vitro fertilization (IVF) program. Infertile couples who have applied to IVF were admitted into this study when the male partner's sperm concentration was > 20 x 10(6)/mL and ...
Gil-Villa Aura María - - 2010
OBJECTIVE: To evaluate and compare standard sperm parameters, lipid peroxidation of sperm plasma membranes, antioxidant capacity of seminal plasma, and sperm chromatin integrity in ejaculates from men whose partners have a history of recurrent pregnancy loss and from a control group of men with recent fertility. DESIGN: Descriptive study. SETTING: ...
Ferreira Renata Cristina - - 2010
OBJECTIVE: To evaluate the effect of male age on clinical outcomes of intracytoplasmic sperm injection (ICSI) cycles, according to sperm concentration. DESIGN: Retrospective, observational study. SETTING: Assisted reproduction center. PATIENT(S): The study included 1,024 couples undergoing ICSI cycles with fresh spermatozoa. INTERVENTION(S): The influence of paternal age on ICSI outcomes ...
Beydoun Hind A - - 2009
OBJECTIVES: To examine the effect of polycystic ovary syndrome (PCOS), a marker of the metabolic syndrome, on selected indicators of in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) treatment success. METHODS: A retrospective cohort study was conducted using existing data on 69 IVF/ICSI treatment cycles undergone by PCOS women ...
Kashima Katsunori - - 2009
In this study, the efficacy and safety of assisted reproduction techniques with the sperm-washing method and nested PCR assay were evaluated in HIV-1-discordant couples, as many HIV-1-positive people of reproductive age are getting married and wish to have children safely. Twenty-seven HIV-1-discordant couples (husband, positive; wife, negative) were enrolled in ...
Sripada Sreebala - - 2010
OBJECTIVE: To explore the association between semen parameters and spontaneous pregnancy. DESIGN: Case-control study. SETTING: Aberdeen Fertility Centre, Aberdeen, Scotland. PATIENT(S): A total of 1,426 untreated couples attending a subfertility clinic with no evidence of azoospermia, anovulation, or tubal disease were observed for 180 weeks. "Cases" were couples who achieved ...
Avendaño Conrado - - 2010
OBJECTIVE: To evaluate DNA fragmentation in morphologically normal sperm recovered from the same sample used for intracytoplasmic sperm injection (ICSI) and to correlate DNA damage with embryo quality and pregnancy outcome. DESIGN: Prospective study. SETTING: Academic center. PATIENT(S): 36 infertile men participating in the ICSI program. INTERVENTION(S): Terminal deoxynucleotidyl transferase-mediated ...
Akarsu C - - 2009
Hypogonadotrophic hypogonadism is characterized by oligospermia or azoospermia and low testosterone, FSH and LH concentrations. In such cases, treatment with gonadotrophins is required to produce or increase spermatozoa in the ejaculate but few achieve normal spermatogenesis. After long periods of medical treatment, if the patients still have a low sperm ...
Ghanem Hussein - - 2010
OBJECTIVE: To assess the effect of treatment with a combination of clomiphene citrate as an antiestrogen and vitamin E as an antioxidant on the incidence of pregnancy and sperm variables in men with idiopathic oligozoospermia and infertility. DESIGN: Prospective, randomized, placebo-controlled trial. SETTING: The outpatient andrology clinic at a university ...
MiciƄski Piotr - - 2009
In this study 60 couples undergoing intracytoplasmic sperm injection (ICSI) procedures were enrolled. All men were classified into two groups regarding to the DNA fractionation index (DFI) threshold value: group I < 15% and group II =or> 15%. In group I, median DFI was 4%, normal pre-implantation embryo development was ...
Tachibana Masahito - - 2009
Although intracytoplasmic sperm injection (ICSI) is a widely used assisted reproductive technique, the fertilization rates and pregnancy rates of immature spermatids especially in round spermatid injection (ROSI) remain very low. During mammalian fertilization, the sperm typically introduces its own centrosome which then acts as a microtubule organizing center (MTOC) and ...
Gambera Laura - - 2010
To perform intracytoplasmic sperm injection (ICSI) in couples with primary infertility owing to sperm defects causing total immotility. Case report. Couple Sterility Center, University of Siena. Two infertile couples, the male members of which had "detached tail" genetic sperm defect. Physical and hormonal assays, semen analysis by light and electron ...
Kushnir Vitaly A - - 2009
To compare aneuploidy rates in first trimester pregnancy losses following IVF+/-ICSI. A retrospective cohort analysis of karyotypes of abortuses following conventional IVF (n=159) and ICSI (n=196). 50.1% of losses were found to be cytogenetically abnormal among all patients undergoing IVF+/-ICSI. A significant increase in fetal aneuploidy rate was noted with ...
Kyrou Dimitra - - 2010
OBJECTIVE: To evaluate the incidence of preeclampsia after intrauterine insemination (IUI) with either donor's or partner's sperm in women with primary infertility. DESIGN: Retrospective cohort study. SETTING: Tertiary referral center. PATIENTS: Between January 1999 and December 2006, 823 women who achieved pregnancy after IUI and delivered at > or =24 ...
French Dan B - - 2010
To determine if strict morphology correlates with outcome parameters in couples undergoing intracytoplasmic sperm injection (ICSI). Retrospective review. Academic nonprofit IVF center. Couples undergoing IVF/ICSI. In vitro fertilization and ICSI. Samples were evaluated for total sperm count, motlity, progression, and morphology using Kruger's strict criteria. The ICSI cycle outcome parameters ...
Zorn Branko - - 2009
Factors that influenced the clinical results of 220 first-attempt intracytoplasmic sperm injection (ICSI) cycles with testicular spermatozoa were evaluated in 107 men with non-obstructive azoospermia, 72 with obstructive azoospermia and 41 with aspermia. Linear and logistic regression analysis showed that the fertilization rate depended positively on Johnsen score (P = ...
Fitzpatrick John L - - 2009
Sperm competition, the contest among ejaculates from rival males to fertilize ova of a female, is a common and powerful evolutionary force influencing ejaculate traits. During competitive interactions between ejaculates, longer and faster spermatozoa are expected to have an edge; however, to date, there has been mixed support for this ...
Manno Massimo - - 2009
OBJECTIVE: To describe a bigeminal pregnancy obtained with a homologous intracytoplasmic sperm injection cycle in a patient with high-grade mosaic Turner syndrome (45,XO/47,XXX 97.5%/2.5%) with bicuspid aortic valve. DESIGN: Case report. SETTING: Unit of Pathophysiology of Human Reproduction in a general hospital. PATIENT(S): Patient with mosaic Turner syndrome with bicuspid ...
Brito L F C - - 2010
A 5-year-old Arabian stallion was managed for breeding with fresh/extended semen during a period of 8 months with a resulting per cycle pregnancy rate of 26.3%. The stallion was in good health and no abnormalities of the reproductive tract were observed. Evaluation of several ejaculates revealed that sperm production and ...
Gojnic M - - 2009
The case of a 29-year-old patient who underwent invitro fertilization due to secondary sterility, after a spontaneous but molar pregnancy, is described. Afterwards there was no spontaneous conception for five years. With the couple's consent, we decided to perform in vitro fertilization, i.e., ovulation induction and the ICSI (intracytoplasmic sperm ...
Check J H - - 2009
PURPOSE: To determine in cases of unexplained infertility whether conventional oocyte insemination vs. intracytoplasmic sperm injection results in differences in fertilization rates, frequency of failed fertilization, clinical and live delivered pregnancy rates, and implantation rates. METHODS: Retrospective evaluation of these parameters in couples undergoing in vitro fertilization embryo transfer (IVF-ET) ...
Busato Wilson F S WF - - 2009
INTRODUCTION: Since the demand for vasectomy reversal is increasing and many populations in Brazil and other countries show distinct characteristics, this study was carried out as an effort to determine factors and characteristics associated with the success rate of reversal in a population in Southern Brazil. PATIENTS AND METHODS: We ...
Lee Yuk Tong - - 2009
OBJECTIVES:Colonoscopy cannot be completed in up to 10% of cases. We postulate that cap-assisted colonoscopy (CAC), by fitting a mucosectomy cap to the tip of a colonoscope, could improve the outcome. METHODS:We conducted a prospective randomized controlled trial in two regional endoscopy centers. All colonoscopies were performed by experienced colonoscopists. ...
Rigot J M - - 2009
In the non-obstructive azoospermia versus the secretory azoospermia it is first necessary to have a clear assessment and definition and then takes care of the patient before the surgical sampling taking into account the age of the woman and in fine try to optimize the residual spermatogenesis. Biopsy seems to ...
Simmons L W - - 2009
Recent in vitro fertilization studies have revealed female and male x female interaction effects on the probability of fertilization. These findings suggest a mechanism of cryptic female choice via sperm-egg interactions. The egg jelly of anuran amphibians contains proteins that facilitate the chemoattraction and binding of sperm for fertilization. Here ...
Colleoni S - - 2009
Sorting of sperm by flow cytometer has allowed selection of offspring of predetermined sex in several species by artificial insemination, although the success rate is often lower than with non-sexed semen. In horses, the problem was partially overcome with hysteroscopic insemination using sex-sorted fresh sperm. However, when sex-sorted frozen-thawed sperm ...
Desai Nina - - 2009
This study takes an in depth look at embryonic development, implantation, pregnancy and live birth rates with frozen epididymal and testicular sperm from obstructed (OA) and non-obstructed (NOA) patients. Paternal effect of sperm source on zygote formation, embryonic cleavage, and genomic activation were examined. Additional outcome parameters monitored were clinical ...
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 ...
1 2 3 4 5 6 7 8 9 10 >