نتایج جستجو برای: sperm parameters

تعداد نتایج: 611368  

Journal: :international journal of reproductive biomedicine 0
shahin ghazali ali reza talebi mohammad ali khalili abbas aflatoonian navid esfandiari

background: recently, motile sperm organelle morphology examination (msome) criteria as a new real time tool for evaluation of spermatozoa in intracytoplasmic sperm injection (icsi) cycles has been considered. objective: the aim was to investigate the predictive value of msome in in vitro fertilization (ivf) in comparison to icsi cycles and evaluation of the association between msome parameters...

Journal: :international journal of reproductive biomedicine 0
nasrin sheikh iraj amiri marzieh farimani rezvan najafi jafar hadeie

background: it is established that sperm dna integrity is essential in fertilization and normal embryo and fetal development. routine semen analysis gives an approximate evaluation of the functional competence of spermatozoa, but does not always reflect the quality of sperm dna. therefore, the evaluation of sperm dna integrity, in addition to routine sperm parameters, could add further informat...

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: :international journal of fertility and sterility 0
seda yılmaz asuman demiroglu zergeroğlu elif yılmaz kenan sofuoglu nuri delikara pelin kutlu

background: sperm dna fragmentation is known as an important cause of male infertility. the influence of sperm dna damage on reproductive potential has been subject of many studies indicating various results and remaining the subject controversial. in this study, we investigated differences of the semen parameters and intracytoplasmic sperm injection (icsi) outcome according to sperm dna fragme...

Today, sperm cryopreservation is a routine practice in infertility clinics. One of the alternative methods to preserve sperm is freeze-drying. This process consists of three steps. The first step is sample freezing, during which the solvent is separated from the solvent. Water forms ice crystals and the solute is placed between the ice crystals. Freezing may be done in a separate device or in a...

Journal: :nephro-urology monthly 0
ali mahdavi department of radiology, tehran university of medical sciences, tehran, ir iran; department of radiology, tehran university of medical sciences, tehran, ir iran reza heidari school of medicine, tehran university of medical sciences, tehran, ir iran mehrdad khezri department of radiology, tehran university of medical sciences, tehran, ir iran abolfazl shiravi department of radiology, tehran university of medical sciences, tehran, ir iran reyhaneh pirjani school of medicine, tehran university of medical sciences, tehran, ir iran reyhaneh saheb kashaf department of radiology, tehran university of medical sciences, tehran, ir iran

conclusions our study showed that ultrasonography findings can be a good predictor of sperm parameters in patients with varicocele. results the semen analysis parameters, including semen volume and sperm morphology, count, and motility, significant correlations with the diameter of the varicocele vein but were not correlated with testes size. in addition, the patients with reflux of longer than...

Journal: :Fertility and sterility 2002
Ramadan A Saleh Ashok Agarwal David R Nelson Essam A Nada Mohammed H El-Tonsy Juan G Alvarez Anthony J Thomas Rakesh K Sharma

OBJECTIVE To evaluate levels of sperm nuclear DNA damage in infertile men with normal and abnormal standard semen parameters. DESIGN Prospective study. SETTING Male infertility clinic. PATIENT(S) Ninety-two men seeking infertility treatment and 16 fertile volunteers. INTERVENTION(S) Standard semen analysis was performed according to the World Health Organization guidelines. MAIN OUTCO...

Journal: :iranian journal of toxicology 0
سجاد فیضی sajad feyzi dehkhargani department of comparative histology & embryology حسن ملکی نژاد hassan malekinejad department of pharmacology and toxicology, faculty of veterinary medicine urmia university, urmia, iran رسول شهروز rasool shahrooz department of comparative histology & embryology رجب علی سرخانلو rajab ali sarkhanloo department of comparative histology & embryology

background: atrazine (atr) is used as an agriculture herbicide worldwide. it has been shown that atr adversely affect the reproductive system in rodents. in this study we aimed to evaluate the impact of chronic exposure to atrazine (atr) on male testicular tissue, sperm parameters, serum level of total thiol molecules (ttm) and malodialdehyde (mda) content of testes. methods: to follow-up this ...

Journal: :international journal of reproductive biomedicine 0
mitra bakhtiari aligholi sobhani mohammad akbari parichehr pasbakhsh mehdi abbasi

background: various approaches have been used in the attempts to improve the quality of frozen–thawed mouse sperms. according to literatures, it seems that hyaluronic acid (ha) has an important role on the permeability and motility of sperms and their interaction with gametes. objective: for evaluation of ha supplementation on sperm characteristics and fertilization capability, we investigated ...

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