نتایج جستجو برای: early ovarian ageing
تعداد نتایج: 785107 فیلتر نتایج به سال:
DNA damage has been implicated in ageing, but direct evidence for a causal relationship is lacking, owing to the difficulty of inducing defined DNA lesions in cells and tissues without simultaneously damaging other biomolecules and cellular structures. Here we directly test whether highly toxic DNA double-strand breaks (DSBs) alone can drive an ageing phenotype using an adenovirus-based system ...
Epithelial ovarian cancer may appear to be confined to the ovaries or pelvis in approximately one-third of patients at exploration, but up to 30% of them will be upstaged following surgical staging. Substage and histotype are the most important prognostic factors that determine the need for adjuvant treatment. Patients with stage Ia or Ib and well-differentiated (other than clear cell) tumors d...
The hardening and microstructural evolution during ageing of a Al-1.2Cu-0.5Mg and a Al-1.2Cu-1.2Mg (at.%) alloy has been investigated. Artificial ageing at 150°C of stretched and naturally aged samples initially (up to about 48 h) leads to very limited further strengthening, but ageing at 190°C results a quick increase in strength. Detailed microstructural investigation using differential scann...
Most ovarian masses are benign conditions such as non neaplastic cystic, but on the other hand , ovarian cancer, is the third most common gynecological malignancy which has the highest mortality rate , as a result of late diagnosis. As there are few clinical symptoms, most patients at the Abstracts of the 12th Royan International Congress on Reproductive Biomedicine 2 3 International Journal of...
Age related fertility decline varies considerably among women. Therefore, chronological female age, though informative on pregnancy prospects in assisted reproduction, will often not correctly express a woman's reproductive potential. The value of quantitative ovarian reserve tests prior to IVF/ICSI treatment is still subject of debate. From a series of systematic reviews it has become clear th...
Several studies have demonstrated that anti-Müllerian hormone (AMH) is a better marker of ovarian reserve than age, basal FSH, estradiol and inhibin. AMH is very good in (i) predicting both over- and poor-response in the controlled ovarian stimulation environment, (ii) determining the most appropriate stimulation regimen and (iii) pre-treatment counselling for couples to make an appropriate and...
Mice have been used in ovarian cancer research mainly as hosts for cell lines derived from human ovarian tumors and ascites. Such models provided valuable information into the nature of metastatic ovarian cancer and possible treatment strategies. However, the complexity of genetic aberrations in human ovarian cancer cell lines precluded understanding of the initiating events responsible for ova...
BACKGROUND Few adult environmental or behavioural factors have been consistently associated with age at menopause. The peak number of follicles attained in utero or lost before ovulation begins may be more important. This study investigates whether birthweight, childhood body size, having been breastfed and early socioeconomic circumstances are associated with age at menopause. METHODS Menopa...
Deriving a cardiac ageing signature to reveal MMP-9-dependent inflammatory signalling in senescence.
AIMS Cardiac ageing involves the progressive development of cardiac fibrosis and diastolic dysfunction coordinated by MMP-9. Here, we report a cardiac ageing signature that encompasses macrophage pro-inflammatory signalling in the left ventricle (LV) and distinguishes biological from chronological ageing. METHODS AND RESULTS Young (6-9 months), middle-aged (12-15 months), old (18-24 months), ...
Background and purpose: Ovarian cancer is the fourth leading cause of death from gynecological cancers in women. Using specific tumor markers that help in making diagnosis at early stages improve therapeutic outcomes. The purpose of this study was to evaluate the diagnostic value of the Risk of Ovarian Malignancy Algorithm (ROMA) index in patients with ovarian mass. Materials and methods: A cr...
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