نتایج جستجو برای: reproductive stage
تعداد نتایج: 446023 فیلتر نتایج به سال:
Gene expression throughout the reproductive process in rice (Oryza sativa) beginning with primordia development through pollination/fertilization to zygote formation was analyzed. We analyzed 25 stages/organs of rice reproductive development including early microsporogenesis stages with 57,381 probe sets, and identified around 26,000 expressed probe sets in each stage. Fine dissection of 25 rep...
OBJECTIVE The aim of this article is to summarize the recommended updates to the 2001 Stages of Reproductive Aging Workshop (STRAW) criteria. The 2011 STRAW + 10 reviewed advances in understanding of the critical changes in hypothalamic-pituitary-ovarian function that occur before and after the final menstrual period. METHODS Scientists from five countries and multiple disciplines evaluated d...
BACKGROUND Fertility-sparing surgery is indicated for patients with stage I epithelial ovarian cancers. We sought to evaluate the clinical outcomes and oncofertility in a cohort of patients of reproductive age with stage I epithelial ovarian cancer (EOC). METHODS Overall, 108 patients of reproductive age (≤ 40 years) diagnosed with stage I EOC who were treated at Peking Union Medical College ...
In this paper we study the two-phase size-structured population model with infinite states-at-birth and distributed delay in birth process. The model distinguishes individuals by two different status: the 'reproductive' stage and the 'nonreproductive' stage. We establish the well-posedness for this model and show that the solution of this model exhibits asynchronous exponential growth by means ...
in other to study the effects of salicylic acid on reproductive characters of ‘elberta’ peach (prunus persica l. batsch) tree, an experiment was carried out based on randomized complete blocks design with four replications in commercial orchard, kerman, iran. the application of three concentrations of salicylic acid 0 (control), 1and 2 mm at swollen bud stage were used. results showed that appl...
Prolactin plays an important role in mediating parental care in birds, but little is known about changes in prolactin levels when animals disrupt their reproductive behaviour during emergency life-history stages. We investigated the variation of prolactin levels with breeding stage, sex, body condition and as a response to a standardized acute stressor in a small short-lived bird, the Eurasian ...
Background and purpose: Female reproductive empowerment refers to the ability and rights to make free decisions in reproductive activities such as number of children and birth intervals. This study was designed to investigate the relationship between childbearing motivations and women reproductive empowerment. Materials and methods: In this descriptive-correlational study, 810 women living in ...
Purpose To devise an uninvasive selection system for human embryos with high developmental potential after a single oocyte retrieval cycle by comparing the in vitro and in vivo effectiveness of first division synchrony against subsequent embryonic developmental stages. Methods The effects of using assisted reproductive technology on 948 embryos that were produced in 137 cycles were examined b...
xanthine oxidase plays crucial roles in the production of reactive oxygen species (ros), and uric acid in blood which may lead to gout, one of the oldest known forms of arthritis amongst humans. summer savory (satureja hortensis l.) a medicinal/spice exhibits antioxidant activity, but unknown effects on xanthine oxidase activity. here, for the first time, we examined the effects of s. hortensis...
Semen cryopreservation is widely used in assisted reproductive technologies, but it reduces sperm quality dramatically. The aim of this study was to develop a model using basal semen quality to predict the outcome of postthaw semen parameters and improve the efficiency of cryopreservation in a human sperm bank. Basal semen parameters of 180 samples were evaluated in the first stage, and a multi...
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