نتایج جستجو برای: mouse icsi

تعداد نتایج: 284627  

Journal: :In vivo 2016
Mara Simopoulou Polina Giannelou Panagiotis Bakas Laertis Gkoles Theodoros Kalampokas Konstantinos Pantos Michael Koutsilieris

Intracytoplasmic sperm injection (ICSI) has become an indispensable procedure of every assisted reproduction unit. This has created as much controversy as it has awe. As this is a multistep invasive technique, every part of the procedure has become subject to investigation. We contribute this review aspiring to offer the embryologist insight into all available approaches of securing an effectiv...

Journal: :Human reproduction 2011
F Belva M Bonduelle J Schiettecatte H Tournaye R C Painter P Devroey J De Schepper

BACKGROUND To date, no data exist about Leydig cell function of pubertal boys born after ICSI. To evaluate a potential risk of gonadal dysfunction in children born from fathers with compromised fertility, testicular function was assessed by the measurement of salivary testosterone. METHODS Morning salivary testosterone levels at the age of 14 years were compared between 58 ICSI teenagers who ar...

2015
Mohamed Ahmed Osama Shareef Ishag Adam Duria Rayis Silke J Dyer Paversan Archary Akmal El-Mazny Frank H de Jong

Background Intracytoplasmic sperm injection (ICSI) was considered as the mainstay of treatment for male infertility. Nowadays, the scope of ICSI has been widened to include other causes of infertility. There are few published data on ICSI in countries with low incomes. Aims A cross-sectional study was conducted at Saad AbuAlla and Banoun Centers, Khartoum, Sudan to investigate outcomes of ICSI ...

Journal: :Human reproduction 2004
I Fahmy A Kamal R Shamloul R Mansour G Serour M Aboulghar

BACKGROUND The aim of this study was to assess the use of testicular sperm for ICSI in azoospermic men with hypogonadotrophic hypogonadism unresponsive to gonadotrophin therapy. METHODS Fifteen patients with hypogonadotrophic hypogonadism who remained azoospermic after hormonal treatment underwent testicular sperm extraction (TESE) and ICSI. These men were recruited from the Egyptian IVF cent...

Journal: :Fertility and sterility 2005
Liana Bosco Giovanni Ruvolo Giovanni Morici Maurizio Manno Ettore Cittadini Maria C Roccheri

OBJECTIVE To investigate the presence of programmed cell death in unfertilized oocytes after intracytoplasmic sperm injection (ICSI), assuming that previous apoptotic events could be correlated with the fertilization failure. DESIGN Comparison of the rate of DNA fragmentation in human oocytes at different stages of maturation soon after pick-up (control) and in unfertilized oocytes after ICSI...

Journal: :Journal of Experimental & Clinical Assisted Reproduction 2006
Kevin S Richter Alana Davis Jennifer Carter Stephen J Greenhouse Gilbert L Mottla Michael J Tucker

BACKGROUND Intracytoplasmic sperm injection (ICSI) is a component of infertility treatment often employed when conventional in vitro fertilization is unlikely to be successful. Despite good clinical results with ICSI, the procedure is typically associated with degeneration of a significant percentage (approximately 10%) of the treated oocytes. The cause of this degeneration remains unclear. Spe...

Journal: :Reproductive biomedicine online 2007
Alex C Varghese Eric Goldberg Ashok Agarwal

Intracytoplasmic sperm injection (ICSI) is an increasingly popular means of treating infertility in couples who wish to conceive. However, there are many potential complications that can be faced by the clinician while performing ICSI. These complications and other related issues are discussed, with an emphasis on understanding how these issues are being resolved, or how they can be resolved in...

Journal: :Fetal diagnosis and therapy 2013
Melanie A J Engels Eva Pajkrt Dominique T Groot Roel Schats Jos W R Twisk John M G van Vugt

OBJECTIVE To validate previously computed correction factors for free β-human chorionic gonadotrophin (fβ-hCG) and pregnancy-associated plasma protein-A (PAPP-A) in in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) pregnancies with hormone treatment and to determine the effect on false-positive rate (FPR). METHODS Retrospective study on 249 IVF and 250 ICSI cases and 20...

Journal: :The Journal of reproduction and development 2016
Toshinori Oikawa Tomoko Itahashi Takashi Numabe

The purpose of this study was to determine whether dithiothreitol (DTT) treatment of sperm and ethanol activation improve embryo production by intracytoplasmic sperm injection (ICSI). Further, we compared ICSI with standard in vitro fertilization (IVF) in oocytes obtained from cattle. We demonstrated that DTT reduced the disulfide bond in the bovine sperm head. Using oocytes obtained from a sla...

2016
Lin-Tao Xue Rui-Xue Wang Bing He Wei-Ying Mo Li Huang Shi-Kai Wang Xian-Bao Mao Jun-Ping Cheng Yue-Yue Huang RuiZhi Liu

Objective To investigate the effect of sperm DNA fragmentation on the fertilization rate, embryo development and pregnancy outcome of in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) in a cohort of Chinese couples. Methods Infertile couples that had undergone assisted reproductive technology at our centre between January 2011 and December 2013 were included in this retro...

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