نتایج جستجو برای: embryo preservation

تعداد نتایج: 140483  

Journal: :The Journal of Biophysical and Biochemical Cytology 1959
F. B. Johnston G. Setterfield Herbert Stern

A method is described for the isolation of nuclei and nucleoli from ungerminated pea embryos. Electron micrographs of the nucleolar preparation indicate a high degree of purity but only a partial preservation of composition, because of a loss of material from the nucleoli which occurs during the isolation procedure.

Journal: :Cancer 2011
Amanda J Redig Robert Brannigan Steven J Stryker Teresa K Woodruff Jacqueline S Jeruss

As the number of cancer survivors continues to increase, oncologists are faced with the challenge of providing cancer therapy to patients who may 1 day want to have children. Yet, gonadotoxic cancer treatments can compromise future fertility, either temporarily or permanently. There are established means of preserving fertility before cancer treatment; specifically, sperm cryopreservation for m...

2012
Ido Laskov Nadav Michaan Ariel Many Ami Amit Foad Azem

Pseudomyxoma peritonei is a rare, chronic relapsing disease in which tumor cells in the abdomen produce excessive mucin with a significant mortality rate. We describe a young unmarried nulligrava who underwent fertility preservation by in vitro fertilisation and embryo cryopreservation prior to radical surgery and adjuvant chemotherapy. Pregnancy was achieved, although complicated by obstructiv...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زیست شناسی 1388

126 abstract: in this research we studied the effects of cyclic hydration and dehydration of cysts of artemia urmiana and artemia parthenogenetica on the hatching percentage, survival and growth. the experiment was carried out in 3 treatments (1-3 hydration/dehydration cycles) with 3 replicates for each treatment. later effects of cold preservation at -20°c during three time periods were ...

2013
Nader Husseinzadeh Holleh D. Husseinzadeh

The aim of this review is to present an overview of available methods for preservation of ovarian function and fertility in female cancer patients who desire to maintain their child-bearing capacity for future pregnancies. A Medline search was conducted. Published articles from American and European studies from 1976 to present were reviewed. The effect of cancer treatment on the ovary, as well...

2014
R. Ronn

Ovarian stimulation followed by oocyte aspiration has facilitated a number of cryopreservation techniques. Embryo cryopreservation has become a well-established and highly endorsed form of fertility preservation in young female cancer patients (American Society for Reproductive Medicine, American Society of Clinical Oncology, European Society of Human Reproduction and Embryology, British Fertil...

2004
Anna T. Grazul-Bilska

In the last 10-20 years, new biotechnologies have been developed that are on the verge of revolutionizing reproductive processes in humans and animals. In agriculture, modern techniques in assisted reproductive technology (ART) are being used for the introduction, improvement, and preservation of livestock genetics and the enhancement of animal reproductive efficiency. Modern embryology and ART...

Journal: :Journal of psychosocial oncology 2012
Samantha Yee Kaajal Abrol Melanie McDonald Madeline Tonelli Kimberly E Liu

A total of 41 questionnaires were returned from 64 respondents who consented to receive a questionnaire through the mail. Almost all valued the opportunity to receive consultation to address their fertility concerns and discuss fertility preservation options. Psychological stress, time pressure, and costs were identified as main factors affecting respondents' decision to proceed with in-vitro f...

2016
Fabio Martinelli Francesca Filippi Francesco Raspagliesi Edgardo Somigliana

We read with great interest the paper by Kim et al. [1] on technologies for fertility preservation. It is a comprehensive overview on current and future options for safeguarding the possibility of future motherhood of young patients suffering from cancer. However, as gynecologists and obstetricians dealing with oncological patients, we’d like to focus on a neglected but crucial aspect of fertil...

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