نتایج جستجو برای: OVARIAN AGEING

تعداد نتایج: 107173  

Journal: :journal of reproduction and infertility 0

apparent rise in the incidence of infertility in females and the trend shifting towards delayed child bearing brought up the concept of ovarian ageing. women in their early thirties show poor ovarian reserve which is an entity named as early ovarian ageing. early ovarian ageing is mostly genetically determined, but acquired modifiable factors like smoking, or ovarian surgery have some roles. in...

2013
Panda Subrat Singh A. Santa Jha Vandana

Apparent rise in the incidence of infertility in females and the trend shifting towards delayed child bearing brought up the concept of ovarian ageing. Women in their early thirties show poor ovarian reserve which is an entity named as early ovarian ageing. Early ovarian ageing is mostly genetically determined, but acquired modifiable factors like smoking, or ovarian surgery have some roles. In...

2014
Pawel Wilkosz Gareth D. Greggains Tom G. Tanbo Peter Fedorcsak Stefan Schlatt

The early decline and loss of female fertility in humans and other species represents an evolutionary paradox. Despite being born with a vast stock of oocytes, females encounter an exhaustion of ovarian reserve and sterility half way through their natural lives. Female reproductive ageing has been proposed to proceed as an ongoing decline in ovarian reserve, determined by remaining ovarian foll...

Journal: :Molecular human reproduction 2016
Elizabeth R Hammond Mark P Green Andrew N Shelling Martin C Berg John C Peek Lynsey M Cree

STUDY HYPOTHESIS Maternal ageing and ovarian stimulation result in the accumulation of mitochondrial DNA (mtDNA) deletions and heteroplasmy in individual oocytes from a novel bovine model for human assisted reproductive technology (ART). STUDY FINDING The levels of mtDNA deletions detected in oocytes increased with ovarian ageing. Low levels of mtDNA heteroplasmy were apparent across oocytes ...

Journal: :Human reproduction update 2013
S M Nelson E E Telfer R A Anderson

BACKGROUND Advanced maternal age is associated with reduced fertility and adverse pregnancy outcomes. This review details recent developments in our understanding of the biology and mechanisms underlying reproductive ageing in women and the implications for fertility and pregnancy. METHODS Sociological online libraries (IBSS, SocINDEX), PubMed and Google Scholar were searched for relevant demo...

Journal: :Human reproduction update 2008
Carla Tatone Fernanda Amicarelli Maria Cristina Carbone Patrizia Monteleone Donatella Caserta Roberto Marci Paolo Giovanni Artini Paola Piomboni Riccardo Focarelli

It is well established that age-related decline of the biological capacity of a woman to reproduce is primarily related to the poor developmental potential of her gametes. This renders female ageing the most significant determinant of success in IVF. Starting with a reference picture of the main molecular and cellular failures of aged oocytes, granulosa cells and follicular microenvironment, th...

2015
P. G. Artini Paolo Giovanni Artini

The ovary is the main regulator of female fertility, and its biologic clock is set to ensure reproductive success during a definite life stage. According to the evolutionary concept that organisms maximize fitness by promoting production of progeny, allocation of resources between reproductive and somatic functions is finely regulated during life [1]. Thus, it has been speculated that the prema...

Background Reduced ovarian reserve has been known to predict poor ovarian response and poor success rates in infertile women undergoing assisted reproductive technology. Ovarian reserve also decreases with age but the rate of decline defers from a woman to another. The aim of this study was to detect any difference in ovarian reserve as measured by basal serum FSH and AMH between matched cohort...

Journal: :Human reproduction 2003
Helen S Kok Kristel M van Asselt Yvonne T van der Schouw Diederick E Grobbee Egbert R te Velde Peter L Pearson Petra H M Peeters

BACKGROUND The aim of the study was to explore the extent to which accelerated ovarian ageing may lead to subfertility early in reproductive life and eventually cause early menopause. METHODS The population studied (n = 2393) never used oral contraceptives, hormone replacement therapy or an intrauterine device. Logistic regression analyses were performed using age at menopause as proxy for ac...

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