View clinical trials related to Low Ovarian Reserve.
Filter by:Growth hormone (GH) has been used in the field of assisted reproduction technology for over 30 years. Studies for GH have been exploring in the applicable population, drug dosage, starting time and time limitation. In previous clinical applications, it worked as an adjuvant drug for improving ovarian reactivity. With the development of basic research and clinical applications, the improvement effect on egg quality is gradually recognized. However, which protocol of GH may work well and maximize the clinical effect remains mystery. The investigators' previous self-controlled retrospective research about 380 cases treated with GH found that the average daily injection of GH dose of 2IU for about 6 weeks can significantly improve embryo quality and clinical pregnancy outcomes of the patients with low ovarian response. The new POSEIDON standard clearly groups people with low prognosis and better classifies heterogeneous people, which may help classifying the specific subgroup that benefit most from GH of poor ovarian response (POR). The investigators design a prospective cohort study to explore whether GH low-dose long-term pretreatment can improve the outcome of assisted pregnancy and its possible mechanism in people with low ovarian reserve.
Assisted reproduction treatment in patients with low ovarian reserve is a big difficult clinical problem. Growth hormone (GH) is crucial in the development of follicles since preantral follicle to ovulation and can promote steroid hormones and gamete formation, increase the granular cell sensitivity,and inhibition of follicular atresia. Latest research shows that GH can improve egg quality through regulating mitochondrial function of the oocytes and increase the rate of embryo euploid. It becomes a new argument in that promotion of clinical pregnancy rate in assisted reproduction treatment. GH applied in the field of assisted reproduction 30 years experience of applicable people, but drug dosage, drug intervention time continue to explore. 2015 China assisted reproductive stimulate ovulation medicine expert consensus recommend joint GH for poor ovarian response, repeated implantation failure patients and older patients assisted fertility treatment, but not on the specific use time limit, the daily dose of drugs and curative effect. How to maximize growth hormone potential advantage in improving the egg quality bothers the clinical doctors. We had a self-controlled retrospective analyses in growth hormone application and found that the average daily injections of GH dose 2 iu for 45 days can significantly improve the embryo quality in patients with low ovarian reaction. And now long-acting recombinant human growth hormone is available, which make it convenient for patients. A forward-looking experimental is expected to answer clinical practical problems and provide proper GH regimen for low ovarian responder.
The purpose of this study to obtain ovarian cortical fragments from perimenopausal patients, who undergo pelvic organ surgery and test whether treatment with PTEN inhibitor and PI3K activating peptide would induce these fragments to produce FSH responsive follicles in the nude mouse model.