Active clinical trials for "Infertility"

Thousands of vein punctures are done every day at hospitals worldwide. Vein puncture are performed in connection with blood sampling, peripheral intravenous catheter (PIV) placement or blood donation. The predominantly used venous for blood withdraw are in the cubital region because in this area venous are most superficial placed and most often visible for the human eye. However, when using the usual blind landmark and palpation method in this region, it often proves exceedingly difficult or even impossible to obtain peripheral venous access on patients who are obese, chronically ill, hypovolemic or intravenous drug users. Various studies have shown that the success rate for establishing a vascular access with ultrasound compared to blind landmark technique is higher in patients with difficult access. When ultrasound is used to establish intravascular access, the prerequisite sterile puncture area can be challenging to meet due to ultrasound gel on the area and the fact that the ultrasound transducer cannot be wiped clean with alcohol after being in contact with a patient's skin or blood. A strict sterile procedure is important to reduce complications related to infection.The traditional way of coping with this is by covering the transducer and the wire in a long sterile sheet and using sterile gel. The sheet must be tight with rubber band around the transducer and pulled tightly around the transducer foot to prevent artefacts from appearing on the screen. This is an expensive and time consuming method, and it still leaves the problem with gel in the puncture area. The investigators have developed a method by where all these problems are solved by using, a slightly modified, commercial drape in combination with the Dynamic Needle Tip Positioning technique The investigators hypothesize that it is possible to perform ultrasound-guided venous puncture with a sterile and dry puncture area and that puncture can be performed proximal and distal to the traditional puncture side. It is a procedure presenting study that serves to demonstrate the feasibility of the method in ten healthy volunteers. The study will take place at Aarhus University Hospital, Skejby.

The purpose of the study is to determine whether or not stressful conditions such as ovum pick and awaiting Embryo Transfer is associated with significant increase in serum Prolactin (PRL) concentration in some normo-prolactinemic patients undergoing intracytoplasmatic sperm injection (ICSI) & possible effect on implantation & pregnancy rate.

The prevalence of infertility has been estimated at 9% worldwide. The steadily increasing use of assisted reproductive technologies (ART) has allowed millions of infertile couples to have children. These children make up for 1 to 4% of the population in developed countries. ART involves the manipulation of early embryos at a time when they may be particularly vulnerable to external disturbances. In line with this concept, studies in mice suggest that ART alters the activity of enzymes involved in the regulation of metabolic and cardiovascular homeostasis. Alternatively, infertility itself or the drugs used to stimulate ovulation may have adverse effects on the outcome of the offspring. The safety of ART for long-term health is, therefore, of utmost importance. Among the potential long-term consequences of ART, cardiovascular disease may represent an important candidate, but there is no information. Investigators show that, children born after in vitro fertilization (IVF) present systemic and pulmonary vascular dysfunction at high-altitude when compared to age- and sex-matched control subjects. A 5 years follow-up study shows that premature vascular aegieng persist and evolve to arterial hypertension. Arterial hypertension may induce cardiac dysfunction. Therefore, the major goal of this proposal is to assess cardiac function in apparently healthy participants born after ART.

Impaired endometrial growth (thin endometrial thickness) is a critical factor for implantation failure. In this study, effects of vitamin E on endometrial growth are studied.

Periodontal diseases and dental caries are initiated by a pathogenic biofilm, in a susceptible host, affecting the tooth periodontium and hard tissues. Its possible association with many biologic systems has been studied. In this study, researchers investigated association between oral health and female infertility, and what is the biological rationale for such relationship.

Analysis of embryonic cell-free DNA (cfDNA) present in the spent culture media (SCM) is a non-invasive alternative for preimplantation genetic testing for aneuploidies (PGT-A) that avoids the technical challenges and limitations of biopsy. Initial studies investigating this non-invasive PGT-A (niPGT-A) method reported variable concordance between cfDNA in SCM and the trophectoderm sample (~ 30%-86%) and indicated a contribution from both the inner cell mass and trophectoderm to the cfDNA in SCM. This study aims to evaluate the use of the embryo culture medium as a source of genetic material for PGT-A and validate a niPGT-A protocol using cfDNA in SCM.

This study is focused on analysing the application of ultrasound scanning techniques as new biomarkers in reproductive medicine. Those biomarkers are based on the analysis of ultrasound texture in different areas of uterine tissue, using 2D/3D ultrasound scanning. Investigators will use the algorithm Text® to analyse the ultrasound texture of the endometrium and myometrium. The aim of the project is to study if it is possible to obtain measurable, objective and reproducible data in healthy volunteers which can be used to predict pregnancy and determine the best moment to perform embryo transfer in assisted reproductive technology (ART) cycles

Many chemotherapy and radiation-containing regimens for cancer or prior to bone marrow transplantation can cause sterility in children and young adults. In addition, some human disease conditions (e.g., Klinefelter's) are associated with infertility. Semen cryopreservation is available as a fertility-preserving option for post pubertal boys and adult men, but many do not take advantage of this option due in part to lack of information, illness, and/or time constraints relative to their treatment plan. Currently, no fertility-preserving options are available for prepubescent boys who are not yet producing sperm. The primary objective of the proposed study is to 1) Optimize techniques for cryopreserving testicular tissue, 2) Assess malignant contamination in testicular tissues and 3) develop methods to enrich spermatogonial stem cells and remove malignant contamination from testicular tissue. In addition, this study will process and cryopreserve tissue and/or cells for participating patients as a resource for future elective procedures to attempt fertility restoration.

The woman fertility decrease with the age and there is a closely link with the ovarian reserve, the number of available eggs in the ovaries. Therefore, it is important to evaluate the ovarian reserve with specific marker to have a better prediction of the response of the in vitro fertilization treatment and to have a better rate of pregnancy. Until now, a lot of clinical criteria (age, duration of the infertility, number of antral follicles) and biological (FSH, Oestradiol, Inhibin B, EFFORT test, number of the eggs at the retrieval day) was suggested to help for the estimation of the ovarian reserve. Since couple of years, the anti-müllerian hormone (AMH) is recognize to be one of the best ovarian reserve marker, it corresponding the number of antral follicles, it is more sensitive and predictive. Moreover, during the In-Vitro Fertilization, the anti-müllerian hormone can provide the weak responds at the stimulation and the reverse, the risk of excessive responds (hyperstimulation). To choose the gonadotropin doses to administrate (stimulation ovarian hormone) during an In-Vitro Fertilization protocol, we need to know the anti-müllerian hormone dosage. However, if the anti-müllerian hormone is recognize to evaluate the quantity of available eggs in the ovaries, his role to determine the quality of these eggs still discussed. The goal of this study is to verify if the serum anti-müllerian hormone (blood) is a good indicator for the quality of the reserve ovarian evaluating the impact of anti-müllerian hormone rate on the pregnancy rate and implantation rate, during stimulate In-Vitro Fertilization protocol.

The aim of this project is to study the physiological role of the KiSS-1/GPR54 system in the granulosa cells of the human ovary.