View clinical trials related to ART.
Filter by:The overall objective is to establish the first-of-its-kind longitudinal cohort of pregnant women, biological fathers/partners and offspring from pregnancies achieved by frozen embryo transfer (FET), fresh-embryo transfer (fresh ET) and naturally conceived (NC) to investigate maternal cardiometabolic profiles, fetal growth patterns and placental function during pregnancy as well as metabolic and endocrine health in the offspring. Additionally, the aim is to explore genetic and epigenetic patterns in placenta, fetus and parents. As secondary objectives, the investigator group will examine telomere length and minipuberty hormones in children born after FET, fresh-ET and NC.
Since the reasons for differential immune reconstitution in HIV-infected patients are still not fully understood, we considered it reasonable to investigate whether the presence of primary HIV drug resistance mutations could be one of the factors of inadequate immune reconstitution. Evaluation of unfavorable factors of immune reconstitution can help identify patients at risk of persistently low CD4 cell counts and CD4:CD8 ratios and requiring careful monitoring for progression to AIDS.
Luteinizing hormone (LH) plays a key role for normal follicular development and oocyte maturation in controlled ovarian stimulation. In particular, LH stimulates the proliferation and differentiation of theca cells for the secretion of androgens, which synergistically increase the production of estrogen. This study aimed to investigate the effects of low LH concentrations on oocyte retrieval, fertilization and embryo development in patients undergoing in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI). Patients undergoing IVF/ICSI were prospectively analyzed, subdividing them into three groups according to their age. Serum LH levels were evaluated at day 3, during stimulation (day 10) and before ovulation induction (day 12).
This will be a prospective, randomized (1:1 ratio) clinical trial for non-male factor infertility in advanced maternal age with or without intracytoplasmic sperm injection(ICSI). Qualified 1422 patients are randomized into either of two groups: group A will undergo conventional in-vitro fertilization(IVF)(711 cases), Group B will undergo intracytoplasmic sperm injection (ICSI) (711 cases). All participants will receive the same protocol for ovarian stimulation and standardized luteal phase support. The target population will be patients with non-male factor infertility aged ≥38years with FSH ≤15. Women with other reasons of infertility (eg. anovulation, endometriosis, and premature ovarian failure) are excluded. The randomization will take place before controlled ovarian stimulation by a computer randomization system. The accumulated live birth rate , pregnancy complications will be followed up by checking medical records and telephone calls.