نتایج جستجو برای: number of oocyte
تعداد نتایج: 21179989 فیلتر نتایج به سال:
OBJECTIVE To investigate opinions on the acceptable number of donation offspring in a national cohort of oocyte and sperm donors. DESIGN A prospective follow-up study on a national cohort of gamete donors. SETTING Sweden. METHODS Study-specific questionnaire. MAIN OUTCOME MEASURES Opinion on the acceptable number of offspring from one donor. RESULTS About half of both oocyte and sperm...
abstract ion selective electrodes (ises) are electrochemical sensors that respond selectivity to the activity of ionic species. an ion-selective electrode is an electrochemical device that uses a thin selective membrane or film as the recognition element, and is an electrochemical half-cell equivalent to other half-cells of the zeroth (inert metal in a redox electrolyte). in common methods o...
objective: the measurement of follicular output rate (fort) has been proposed as a good indicator for evaluating follicular response to the exogenous recombinant folliclestimulating hormone (rfsh). this places fort as a promising qualitative marker for ovarian function. the objective of the study was to determine fort as a predictor of oocyte competence, embryo quality and clinical pregnancy af...
developing a culture system for preantral follicles has important biotechnological implications due to the potential to produce a large number of oocytes for embryo production and transfer. to accomplish this goal, the present study was aimed to culture preantral follicles in the presence of different media, sera and fsh concentrations. six-week-old preantral follicles (95 ± 5 µm) were cultured...
some new water-soluble schiff base complexes of na2[m(5-so3-1,2-salophen)].nh2o; (5-so3-1,2-salophen = n,n’-bis(5-sulphosalicyliden)-1,2-phenylendiamine); na2[m(5-so3-2,3-salpyr)(h2o)n].2h2o; (5-so3-2,3-salpyr = n,n’-bis(5-sulphosalicyliden)-2,3-diaminopyridine); and na2[m(5-so3-3,4-salbenz)(h2o)n].nh2o; (5-so3-3,4-salbenz = n,n’-bis(5-sulphosalicyliden)-3,4-diaminobenzophenon); where m = cu, n...
The aim of all assisted reproductive techniques (ART) is a live birth of a single healthy baby. Many clinical and laboratory strategies can influence the ART clinical outcomes. In this lecture we try to explore the clinical and laboratory strategies to maximize success in ART. Three are the main issues: 1. optimize the number of oocyte retrieved with an individualized controlled ovarian superov...
BACKGROUND The intracytoplasmic sperm injection procedure ending with total fertilization failure is very distressfull event for both the clinician and the patient. OBJECTIVE The aim of this study was to identify independent factors which could be used to identify total fertilization failure before the day of intracytoplasmic sperm injection. MATERIALS AND METHODS This was a retrospective s...
Increasing infertility is one of the most serious health problems today. Over past few years, we have had opportunity to follow progress technologies focused on production embryos in vitro (i.e., fertilization and intracytoplasmic sperm injection, genetic engineering, or somatic cell nuclear transfer. Oocyte maturation important processes vitro. Despite recent this field, developmental competen...
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