نتایج جستجو برای: sperm morphology

تعداد نتایج: 179765  

Journal: :Fertility and sterility 2010
Dan B French Edmund S Sabanegh James Goldfarb Nina Desai

OBJECTIVE To determine if strict morphology correlates with outcome parameters in couples undergoing intracytoplasmic sperm injection (ICSI). DESIGN Retrospective review. SETTING Academic nonprofit IVF center. PATIENT(S) Couples undergoing IVF/ICSI. INTERVENTION(S) In vitro fertilization and ICSI. MAIN OUTCOME MEASURE(S) Samples were evaluated for total sperm count, motlity, progressi...

Journal: :cell journal 0

introduction: varicocele is considered as a common cause of male infertility. the aim of this study was to evaluate the effects of varicocelectomy on sperm parameters, sperm membrane integrity and sperm nuclear maturity. materials and methods: in this study along with routine semen analysis, hypo-osmotic swelling test (host), and aniline blue staining for assessment of as 45 and 90 days after i...

Journal: :anatomical sciences journal 0
houshang rafighdoost mir mehrdad farsi maryam javadi soraya khafri

introduction: tegrity is the most important component for transferring genetic information sperm dna fragmentation is considered a component of male infertility. its assessment comprises conventional semen analysis of which emphasis is placed on its evaluation in fertility clinics. in this study, we investigate the relationship between sperm parameters of motility, morphology, concentration, an...

Journal: :مجله دانشگاه علوم پزشکی کرمانشاه 0
anoushirvan kazemnejad . associate professor of biostatitics, tarbiat modarres university, tehran , iran (corresponding author ;email :kazem an@modares .acir ) soraya khafri ph.d student of biostatistics, tarbiat modarres university, tehran, iran. mansoureh movahedian assistant professor of anatomy, tarbiat modarres university, tehran, iran. modarres university,tehran, iran. mehdi sadat hashemi ph.d student of biostatistics,tarbiat

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 ...

Journal: :avicenna journal of medical biochemistry 0
faramarz fazeli department of urology, school of medicine, zahedan university of medical sciences, zahedan, ir iran saeedeh salimi cellular and molecular research center, zahedan university of medical sciences, zahedan, ir iran; department of clinical biochemistry, school of medicine, zahedan university of medical sciences, zahedan, ir iran; department of clinical biochemistry, school of medicine, zahedan university of medical sciences, zahedan, ir iran. tel: +98-5433425728, fax: +98-5433425728

conclusions our results show that oxidative stress could play an important role in male infertility as well as in sperm motility and sperm morphology. patients and methods this case control study was conducted using 35 men with idiopathic infertility and 34 men with proven fertility. seminal plasma tac and mda were measured by ferric reducing ability of plasma (frap) and thiobarbituric acid (tb...

2016
Samaneh Hasanzadeh Keshteli Mir Mehrdad Farsi Soraya Khafri

Semen analysis, sperm DNA fragmentation (SDF) and hypo-osmotic swelling test (HOST) are usually performed for the evaluation of sperm fertilizing ability. There are some debates over the necessity of SDF and HOST incorporation in male infertility work-up.Semen of 77 men was evaluated by SDF and HOST through three semen analyses. Sperm parameters were arranged into different categories: <5%, 5-1...

Journal: :international journal of reproductive biomedicine 0
shahdokht motazedian bahareh hamedi jaleh zolghadri khatereh mojtahedi nasrin asadi

background: although intrauterine insemination (iui) is one of the most common methods which is used for male factor and unexplained infertility the relative influence of various semen parameters on the likelihood of a successful outcome is controversial. several semen parameters have been evaluated as predictors of a successful outcome with intrauterine insemination. objective: to evaluate the...

2014
Yong-Seog Park Sol Park Duck Sung Ko Dong Wook Park Ju Tae Seo Kwang Moon Yang

OBJECTIVE The presence of sperm-head vacuoles has been suspected to be deleterious to the outcomes of assisted reproductive technology (ART). It is difficult to accurately distinguish morphologically abnormal sperm with vacuoles under a light microscope. This study was performed to analyze the result of the observation of sperm-head vacuoles using Papanicolaou staining under a light microscope ...

Journal: :Fertility and sterility 2004
Nabil Aziz Ramadan A Saleh Rakesh K Sharma Iwan Lewis-Jones Navid Esfandiari Anthony J Thomas Ashok Agarwal

OBJECTIVE To examine the relationship between sperm reactive oxygen species (ROS) production and sperm morphology in a group of infertile men and healthy fertile donors. DESIGN A prospective clinical study. SETTING Male infertility clinic, Glickman Urological Institute, The Cleveland Clinic Foundation, Cleveland, Ohio, and the Reproductive Medicine Unit, Liverpool Women's Hospital, United K...

Journal: :Human reproduction 1999
N Nikolettos W Küpker C Demirel B Schöpper C Blasig R Sturm R Felberbaum O Bauer K Diedrich S Al-Hasani

One of the best discriminators for the fertilization potential of human spermatozoa is sperm morphology. The problem in the assessment of the sperm morphological characteristics is their pleiomorphism. Examination of spermatozoa with the light microscope can provide only limited information on their internal structure. More detailed examination of sperm structure using electron microscopy can r...

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