نتایج جستجو برای: ovarian ageing

تعداد نتایج: 107173  

A.M. Samarin, J. Nikbakhsh Golkhaily R. Kazemi T. Policar

To study the effects of post-stripping oocyte ageing at low temperatures on the viability of kutum (Rutilus kutum) oocytes, unfertilised eggs of five females were stored in ovarian fluid at temperatures of 4 and 7 degree centigrade for 24 hours post stripping (HPS). The stored ova of five female kutum were separately fertilised at 0 (i.e., control eggs fertilised prior to storage), 4, 8, 12, 16...

Ardalan, Ali, Rasel, Mehri,

This article is focused on ageing and the rapid ageing population growth, from future health care costs prospectus. It reviews ageing population statistics in several courtiers as well as Iran, to illustrate the significance of the ageing population growth in the next decades. Nevertheless, the health care costs for elderly people are described and the considerable differences between health ca...

Morad Shaa

This research was carried out to study the effect of ageing on antioxidant and biochemical changes of wheat (Triticum aestivum L.) seeds. The experiment laid out in completely randomized design (CRD) with four replications in Islamic Azad University, Boroujerd Branch, Boroujerd, Iran in 2015. The seeds of wheat (cv Sardari) were harvested at maturity and ageing treatments were done at 43° C wit...

2010
Angelica B. Bernal Mark H. Vickers Mark B. Hampton Rebecca A. Poynton Deborah M. Sloboda

BACKGROUND We have shown recently that maternal undernutrition (UN) advanced female pubertal onset in a manner that is dependent upon the timing of UN. The long-term consequence of this accelerated puberty on ovarian function is unknown. Recent findings suggest that oxidative stress may be one mechanism whereby early life events impact on later physiological functioning. Therefore, using an est...

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...

Journal: :Journal of the College of Physicians and Surgeons--Pakistan : JCPSP 2009
Shahida Zaidi Ambreen Usmani Ishrat S Shokh Syed Ejaz Alam

OBJECTIVE To compare the ovarian reserve and BMI in fertile and subfertile women aged 20-39 years by ultrasonography. STUDY DESIGN A comparative study. PLACE AND DURATION OF STUDY The Ultrasound Clinic, PECHS, Karachi, from March to December 2006. METHODOLOGY Eighty women, 40 fertile and 40 subfertile, were subdivided into age groups of 20-29 and 30-39 years. Total ovarian volume (OV) was...

Journal: :Human reproduction 2012
Andrew J Duncan Jack A Knight Harry Costello Gerard S Conway Shamima Rahman

Bennett CE, Conway GS, Macpherson JN, Jacobs PA, Murray A. Intermediate sized CGG repeats are not a common cause of idiopathic premature ovarian failure. Hum Reprod 2010;25:1335–1338. Chen LS, Tassone F, Sahota P, Hagerman PJ. The (CGG)n repeat element within the 5′ untranslated region of the FMR1 message provides both positive and negative cis effects on in vivo translation of a downstream rep...

Journal: :Journal of insect physiology 2008
Emma L B Barrett Richard F Preziosi Allen J Moore Patricia J Moore

Ovarian apoptosis has been found to occur in the female cockroach Nauphoeta cinerea in response to lack of mates. It has been proposed that ovarian apoptosis in continuously breeding insects is an adaptive mechanism for recouping resources in poor conditions (oosorption). However, N. cinerea is a cyclically breeding insect and ovarian apoptosis may represent ageing and clearance of old unused o...

2016
Claudio Hernández-Angeles Camil Castelo-Branco

Early menopause or premature ovarian insufficiency (POI) is a common cause of infertility in women and affects about one per cent of young women. This disorder has significant psychological sequelae and major health implications. Its relevance has increased in recent years due to the fact that age of motherhood is being delayed in developed countries, with the risk of having either primary ovar...

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