View clinical trials related to Diminished Ovarian Reserve.
Filter by:The study aims to explore the genetic pathogenesis of diminished ovarian reserve via whole-genome sequencing technology in Chinese women.
Ovarian reserve defines the quantity and quality of the ovarian primordial follicular pool. Diminished ovarian reserve (DOR) indicates a reduction in the quantity of ovarian follicular pool to less than expected for age. It is an important cause of infertility in many couples. To date, there is no clear consensus in the literature on the definition of diminished ovarian reserve, and it is unclear whether low oocyte yield results from an abnormal atresia rate of the follicle pool, or from a lower follicle pool at birth or whether it can just occur as a normal variation in the population. The ovarian response to controlled ovarian stimulation with gonadotropins (for example, for in vitro fertilization) is largely determined by the ovarian reserve, and there are numerous different ovarian stimulation protocols that are employed to try and increase the oocyte yield of a particular cycle. There is no consensus on which, if any, of these protocols are superior and preferred for patient with DOR. Luteal gonadotropin stimulation is a protocol of controlled ovarian stimulation (COS) for use in assisted reproductive technologies (ART) that has emerged over the past decade as an acceptable alternative to the classic follicular gonadotropin stimulation. The luteal estradiol patch protocol was introduced in 2005 in patients with poor response to controlled ovarian stimulation (COS) and to address the phenomenon of early follicle recruitment in patients with diminished ovarian reserve (DOR). Luteal gonadotropin stimulation can potentially achieve the same effect by initiating follicular recruitment for IVF prior to the body's own premature recruitment. Our hypothesis is that the luteal stimulation protocol and estradiol priming protocol are equivalent with regard to the outcome of number of mature oocytes retrieved. Patients who will be undergoing controlled ovarian stimulation and who have a diagnosis of diminished ovarian reserve will be considered for this trial, and enrolled if meeting all inclusion and no exclusion criteria.
Consenting women with evidence of poor ovarian reserve will be randomly assigned to treatment with either Platelet Rich Plasma (PRP) or Platelet Poor Plasma (PPP).
The hypothesis of the study is that ovaries of women with a history of poor response to ovulation induction may benefit from exposure to growth factors known to be present in Platelet Rich Plasma (PRP). Since even ovaries from women with poor response still contain primordial follicles (which, however, no longer undergo recruitment), it is hoped that PRP injections into ovaries will activate follicular recruitment pathways and, subsequently, result in follicle growth. Should such growth be observed, follicles will be supported with routine daily gonadotropin stimulation until hCG trigger.
The primary objective of this study is to assess the chances of increasing the number of antral follicles in ovarian tissue of patients with diminished ovarian reserve by activation of primordial follicles through ovarian cortex fragmentation. Secondary objectives are to assess potential association with the number of oocytes retrieved and pregnancy rates after IVF.
genetic screening and etiological analysis was conducted on patients with ovarian insufficiency and decline in ovarian reserve. All patients were enrolled in the IVF-treated and non-IVF-treated groups, followed up for long-term treatment outcomes and genomic screening.