نتایج جستجو برای: ovary reserve

تعداد نتایج: 75771  

Journal: :Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia 2016
Meire Spressão Antonio Hélio Oliani Denise Cristina Mós Vaz Oliani

Purpose To identify which methods used in the assessment of the ovarian reserve are exclusive or complementary to identify the best response to follicle development. Methods Retrospective cohort study, involving patients undergoing assisted reproduction treatment at the Instituto de Medicina Reprodutiva e Fetal, from April 2009 to July 2014. Age, biochemical tests, and ultrasound were assessed....

Journal: :Human reproduction 2004
C B Lambalk C H de Koning A Flett Y Van Kasteren R Gosden R Homburg

The evaluation of ovarian reserve, often critical for the elderly infertile woman, is notoriously difficult and inaccurate. The place of ovarian biopsy in this evaluation has been hotly disputed for three decades, but not resolved. To examine the feasibility of ovarian biopsy for this purpose, a project was designed to estimate the total number of oocytes in a human ovary and investigate whethe...

2015
Ting Gui Guangwen Yuan Keng Shen Dongyan Cao Jiaxin Yang Ming Wu Jinghe Lang

OBJECTIVE The aim of the study reported here was to investigate the protective effect of gonadotropin-releasing hormone analog (GnRHa) against cyclophosphamide (CTX)-induced gonadotoxicity. METHODS Eighty Fischer 344 rats were divided randomly into four groups (20 per group). One group received normal saline, one GnRHa, one CTX, and one GnRHa+CTX. Several parameters were used to observe the o...

2004
D. Nikolaou C. Gilling - Smith

Screening asymptomatic women in the general population for ‘early ovarian ageing’ will be more effective in highrisk groups. Recent findings support the hypothesis that women with polycystic ovaries (PCO) may have actually been born with a larger pool of resting follicles. The mechanism is almost certainly genetic and occurs in fetal life. If, as is widely accepted, the rate of depletion of the...

2017
M. McLaughlin T. W. Kelsey W. H. B. Wallace R. A. Anderson E. E. Telfer

Purpose The ability to accurately estimate a woman’s ovarian reserve by non-invasive means is the goal of ovarian reserve prediction. It is not known whether a correlation exists between model-predicted estimates of ovarian reserve and data generated by direct histological analysis of ovarian tissue. The aim of this study was to compare mean non-growing follicle density values obtained from ana...

The ovarian reserve (OR) gradually decreases throughout the female fertile life. This continuous depletion in OR is irreversible. This occurs through a programmed cell death known apoptosis. Some factors hasten such depletion such as chemo- and radiotherapy. Others have been investigated in trials to preserve the OR including gonadotropins, cytokines, growth hormones, nitric oxide and reorganiz...

2017
Seido Takae Kosuke Tsukada Yorino Sato Naoki Okamoto Tai Kawahara Nao Suzuki

Except for histological study, there are currently no suitable techniques available for the detection and identification of primordial follicles in ovary of primary ovarian insufficiency patients who have undetectable AMH levels. Also, the ability to locate and quantify follicles on ovarian cortex strips, without fixation, is valuable for patients who could undergo subsequent successful ovarian...

Journal: :Reproduction 2013
Jeffrey B Kerr Michelle Myers Richard A Anderson

The female germline comprises a reserve population of primordial (non-growing) follicles containing diplotene oocytes arrested in the first meiotic prophase. By convention, the reserve is established when all individual oocytes are enclosed by granulosa cells. This commonly occurs prior to or around birth, according to species. Histologically, the 'reserve' is the number of primordial follicles...

Journal: :Reproductive Biomedicine Online 2021

Studies suggest that the presence of endometriosis may lead to impaired ovarian reserve, while results evaluating changes in antral follicle count (AFC) remain controversial. A systematic search returned 15 studies, which nine compared AFC between patients with and without endometriosis, five articles reported differences affected unaffected ovaries unilateral one both above two situations. Ove...

Journal: :Bangladesh Medical Research Council bulletin 2014
H A Perven A S M Nurunnabi S Ara M U Jahan

Reproductive age, ovarian reserve and reproductive capability may be determined from the volume of the ovary. A cross-sectional, descriptive study was done in the Department of Anatomy, Dhaka Medical College, Dhaka, from January to December 2009, to see the variation in the volume of the ovary with age in Bangladeshi women. The study was performed on 140 post mortem human ovaries collected from...

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