نتایج جستجو برای: ovarian maturation status

تعداد نتایج: 546284  

2014
W. Decleer K. Osmanagaoglu G. Meganck P. Devroey

A pilot study of 10 patients undergoing IVF stimulation, using the new combination of Corifollitropin Alfa with highly purified hMG and GnRH antagonists has been performed, whereas final oocyte maturation was induced by GnRH analogues. The hormonal profiles were analyzed, as well as the clinical outcome. All patients were recruited between March 1st 2013 and June 30(th) 2013. They were all youn...

2016
Yumi Hoshino

In vitro maturation (IVM) is being increasingly used to treat human infertility, especially as rescue therapy for patients of polycystic ovarian syndrome and ovarian hyperstimulation syndrome. Quality control and the determination of optimal fertilization conditions—important to increase the use of IVM oocytes for embryo production and improve pregnancy success rates—require a detailed understa...

2011
Umaporn Uawisetwathana Rungnapa Leelatanawit Amornpan Klanchui Juthatip Prommoon Sirawut Klinbunga Nitsara Karoonuthaisiri

Eyestalk ablation is commonly practiced in crustacean to induce ovarian maturation in captivity. The molecular mechanism of the ablation has not been well understood, preventing a search for alternative measures to induce ovarian maturation in aquaculture. This is the first study to employ cDNA microarray to examine effects of eyestalk ablation at the transcriptomic level and pathway mapping an...

Eftekhar M Karimi HA Khalili MA Yazdanpanah F

Background: 15% of oocytes collected in ART cycles are immature. These oocytes may be matured following IVM program. It is possible to cryopreserve the immature oocytes for further use in ART after application of IVM. The aim was to determine the maturation rate, morphology and viability of human immature oocytes after fresh IVM and vitrified-IVM program. Materials and Methods: 63 women who und...

Azadbakht M Khazaei M, Rashidi Z Sadri S

Background: Cryopreservation of ovaries is an important technique in assisted reproduction technology. Physical forces like hydrostatic pressure have a pivotal role in reproduction systems. Due to changes in intrafollicular pressure during ovulatory process, this study designed to examine the effects of hydrostatic pressure on oocyte maturation and cell death in cumulus cells from cryopreserved...

2013
Mohammad Ali Khalili Stefania A Nottola Abbas Shahedi Guido Macchiarelli

 The use of ovarian stimulation for infertility treatment is associated with side effects of ovarian hyperstimulation syndrome (OHSS) and potential cancer risk. This is also true in high risk women such as those polycystic with ovary (PCO) and polycystic ovarian syndrome (PCOS). In vitro maturation (IVM) of oocytes was primarily developed to make IVF safe for women with PCO and at high risk of ...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2013
R A Shinozaki-Mendes J Santander-Neto J R F Silva F H V Hazin

To elucidate the reproductive cycle of any animal, it is first necessary to understand the development of the germ cells and how this process occurs throughout the reproductive tract. Thus, the aim of the present study was to understand the oogenesis and spermatogenesis, as well as the ovarian and testis maturation and type of spawning, of Haemulon plumieri. A total of 119 females and 136 males...

Journal: :International Journal of Contemporary Pediatrics 2021

Aromatase deficiency is a rare autosomal recessive disorder characterized by impaired androgen to estrogen conversion. We report 13.5-year-old girl initially misdiagnosed as simple virilising 21 hydroxylase who presented with delayed puberty. Work-up showed aromatase due novel mutation in the gene. Estradiol replacement was associated increased growth, skeletal maturation, bone density and adip...

Journal: :Seminars in reproductive medicine 2007
Erin R West Lonnie D Shea Teresa K Woodruff

In vitro ovarian follicle culture provides a tool to investigate folliculogenesis, and may one day provide women with fertility-preservation options. The application of tissue engineering principles to ovarian follicle maturation may enable the creation of controllable microenvironments that will coordinate the growth of the multiple cellular compartments within the follicle. Three-dimensional ...

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