نتایج جستجو برای: testicular sperm

تعداد نتایج: 54797  

Journal: :Human reproduction 2004
E B Baart G W van der Heijden F A van der Hoeven R Bakker T G Cooper P de Boer

BACKGROUND Male mice, heterozygous for two semi-identical reciprocal translocations T(1;13)70H and T(1;13)1Wa are usually sterile. We have investigated this oligoasthenoteratozoospermic mouse model using ICSI. METHODS B6D2F1 oocytes were injected with epididymal or testicular sperm from fertile or sterile translocation carriers and from chromosomally normal fertile controls. ICSI efficiency w...

2017

Patients with sickle cell disease (SCD), especially males, face a key problem in the form of infertility. Apart from low serum testosterone, abnormalities involving accessory sex organs are also observed in these patients. Infertility is a known complication among males with SCD, and it comes about due to reasons such as impotence, relative primary gonadal failure, priapism, and delayed or impa...

Journal: :Human reproduction 2002
Vera Baukloh

BACKGROUND Isolation of sperm suitable for ICSI from fresh or frozen-thawed testicular sperm extraction (TESE) can be facilitated by mechanical or enzymatic processing of the samples. METHODS A retrospective multicentre study was initiated to compare these two approaches. Eleven German centres provided data on their TESE cycles performed during the period 1996/1997. Quality of retrieved sperm...

Journal: :nephro-urology monthly 0
ali asghar ketabchi physiology research center, kerman university of medical sciences, kerman, iran; physiology research center, kerman university of medical sciences, kerman, iran. tel: +98-3432114348, fax: +98-3432239188

conclusions sperm quality extracted by percutaneous pesa and tese procedures increases fertility outcomes compared to naturally ejaculated sperm in men with idiopathic co. more specifically, embryo quality, which is most relevant to fertility outcome, improved when surgically extracted sperm was used for icsi. results there was a significant difference in fertilization rate, embryo quality, imp...

 Background and purpose: About 50% of infertility in couples is related to male factors and oxidative stress is one of the main causes of infertility in men. Hydrogen peroxide has an adverse effect on male reproductive system due to its free radicals. Spirulina and phycocyanin are known to have antioxidant properties and can modify stressors. Materials and methods: In this experimental study, ...

Journal: :Human reproduction 2006
J R Spermon L Ramos A M M Wetzels C G J Sweep D D M Braat L A L M Kiemeney J A Witjes

BACKGROUND While (partial) recovery of spermatogenesis, observed by means of standard semen analysis, has been seen in testicular cancer patients after chemotherapy with cisplatin, sperm genomic integrity and its implication for the patient's fertility are poorly understood. METHODS Semen and serum from 22 patients treated for testicular cancer were analysed pre- and post-chemotherapy. Beside...

Journal: :Human reproduction 2002
S Elzanaty J Richthoff J Malm A Giwercman

BACKGROUND Little is known about the regulation of sperm motility, which is an important predictor of male fertility. However, both testicular and post-testicular factors may be involved, although the impact of the latter has been relatively poorly investigated. METHODS In semen samples from 301 young men from the general Swedish population (mean +/- SD age 18.2 +/- 0.4 years), we assessed sp...

2003
Ants Kavak

Kavak, A. 2004. Evaluation of sperm production, testicular measurements and post-thaw sperm quality in Tori and Estonian breed stallions. Licentiate dissertation.

Fluoxetine is a selective serotonin reuptake inhibitor is commonly prescribed to treat maternal depression in pregnancy and lactation. This study aimed to investigate the effects of maternal exposure to fluoxetine via lactation on testicular tissue, sperm parameters including count, motility, viability, and normal morphology and testicular oxidative stress status in male mice offspring. Ten mic...

2015
Mohamed Afifi Omar A. Almaghrabi Naif Mohammed Kadasa

The present study investigated the impact of zinc oxide nanoparticles (ZnONPs) on the oxidative status and sperm characteristics in diabetic rat testicular tissue. Forty male albino rats were used in this study; 10 of them served as a control and 30 rats were injected with a single dose (100 mg/kg) of streptozotocin intraperitoneally. They were subdivided into diabetic, diabetic + ZnONPs (10 mg...

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