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NCT07093619
In assisted reproductive technology (ART), sperm preparation aims to select the most viable sperm for ICSI. Unlike conventional methods like density gradients or sperm washing, microfluidic techniques mimic natural selection in the female reproductive tract by using laminar flow without centrifugation, reducing the risk of DNA damage. This method isolates highly motile sperm while filtering out debris and immotile cells. Studies show that microfluidics improve embryo quality, increase pregnancy rates, and may lead to higher euploidy rates. Additional benefits include improved safety, scalability, and shorter preparation times.
NCT06587477
Cancer treatment can affect the testicular function, including sperm and hormonal functions. The aim of this study is to assess the testicular function and semen quality in young men who recover from childhood and adolescent cancer in Hong Kong. This can provide more information for pre-treatment counselling as well as improve post treatment survivorship care. The testicular function will be compared to aged-matched controls from men attending the Family Planning Association for premarital check-up.
NCT06258759
Sperm cryopreservation is an essential procedure for male fertility in certain situations, like cancer, vasectomy or other obstructive surgeries, autoimmunity diseases, immunosuppressive therapeutic strategies, or when the male partner is incapable of providing sufficient spermatozoa on the day of egg retrieval. Semen cryopreservation is mainly associated with decreased viability, motility, and DNA damage of spermatozoa due to the osmotic and mechanical stresses attributed to the freezing-thaw- ing process. Sperm cryodamage mainly originates from osmotic changes, cold shock, intracellular ice crystal formation, and oxidative stress. Based on this, some protective strategies have been proposed and developed, even the addition of cryoprotectants. Recently, Platelet-rich plasma (PRP) is becoming very popular in medicine. The therapeutic effect of platelets is related to alpha granule contents. A study showed that PRP modulates ROS toxicity through a different mechanism. VEGF detoxify oxidative damage via activation of the nuclear factor (erythroid- derived 2)-like2 (Nrf2) pathway. Oxidative stress modulation and apoptosis inhibition both have an essential role during the cryopreservation process. In this case, it raises the question of whether PRP can improve the sperm quality against freeze-thawing-induced damage. Therefore, the present study aimed to examine different concentrations of PRP on frozen-thawed sperm parameters of vitality, morphology, motility and DNA fragmentation