نتایج جستجو برای: ovarian aging

تعداد نتایج: 186296  

Journal: :international journal of reproductive biomedicine 0
akram ahangarpour zohreh lamoochi hadi fathi moghaddam seyed mohamad taghi mansouri

background: aging contains morphological and functional deterioration in biological systems. d-galactose (d-gal) generates free radicals and accelerates aging. portulaca oleracea (purslane) may have protective effect against oxidative stress. objective: purslane ethanolic extract effects were evaluated on antioxidant indices and sex hormone in d-gal aging female mice. materials and methods: 48 ...

2011
Norbert Gleicher David H Barad

BACKGROUND With infertility populations in the developed world rapidly aging, treatment of diminished ovarian reserve (DOR) assumes increasing clinical importance. Dehydroepiandrosterone (DHEA) has been reported to improve pregnancy chances with DOR, and is now utilized by approximately one third of all IVF centers world-wide. Increasing DHEA utilization and publication of a first prospectively...

2010
Yuichi Niikura Teruko Niikura Ning Wang Chonthicha Satirapod Jonathan L. Tilly

Through the use of parabiosis in mice, aging-related deterioration of skeletal muscle and liver has been linked to a loss of systemic factors that support adult stem or progenitor cell activity. Since aging-related ovarian failure has recently been attributed, at least in part, to a loss of de-novo oocyte-containing follicle formation associated with declining oogonial stem cell activity, herei...

Journal: :Polish Gynaecology 2013

Journal: :Biology of reproduction 2011
Jinhwan Lim Ulrike Luderer

Oxidative stress has been implicated in various aspects of aging, but the role of oxidative stress in ovarian aging remains unclear. Our previous studies have shown that the initiation of apoptotic cell death in ovarian follicles and granulosa cells by various stimuli is initiated by increased reactive oxygen species. Herein, we tested the hypothesis that ovarian antioxidant defenses decrease a...

2017
Mingjie Shen Cong Qi Yan-Ping Kuang Yang Yang Qi-Feng Lyu Hui Long Zhi-Guang Yan Ying-Yu Lu

BACKGROUND The aim of this study was to investigate the impact of diosgenin, an important monomer of sapogenins in yams, on ovarian reserve in a natural aging mice model. STUDY DESIGN This randomized controlled trial included 60 9-month-old C57 naturally aging female mice. Twenty-one mice were assigned to the dio group and were fed a single dose of diosgenin (200 mg/kg/day) suspended in 0.3% ...

Journal: :Reproductive Biology and Endocrinology 2011

2014
BUSHRA FIZA RATI MATHUR MAHEEP SINHA PUSHPENDRA SARASWAT

As the chronological age increases, there is a physiological decline in reproductive potential of women. Moreover, the chronological age of women may not reflect the biological age of her ovaries. Various endocrine markers have been used to assess the ovarian reserve. The changing pattern of the endocrine markers; follicle stimulating hormone (FSH), luteinizing hormone (LH), estradiol (E2) and ...

Journal: :Science 2003
Diego H Castrillon Lili Miao Ramya Kollipara James W Horner Ronald A DePinho

Foxo transcription factors have been implicated in diverse biological processes, including metabolism, cellular stress responses, and aging. Here, we show that Foxo3a-/- female mice exhibit a distinctive ovarian phenotype of global follicular activation leading to oocyte death, early depletion of functional ovarian follicles, and secondary infertility. Foxo3a thus functions at the earliest stag...

2011
Anthony P. Cheung

Objective: To improve awareness of the natural age-related decline in female and male fertility with respect to natural fertility and assisted reproductive technologies (ART) and provide recommendations for their management, and to review investigations in the assessment of ovarian aging . Options: This guideline reviews options for the assessment of ovarian reserve and fertility treatments usi...

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