Publications by authors named "Selman H"

Background: A normal luteal function is an essential factor for maintaining pregnancy; luteal phase deficiency decreases embryo implantation and pregnancy rate and increases the early miscarriage rate. In stimulated in vitro fertilization-embryo transfer (IVF-ET) patients, luteal phase support (LPS) is achieved by the exogenous supplementation with progesterone to increase endometrial receptivity and pregnancy. While several protocols exist, no commonly accepted protocol has been established for optimal luteal support after IVF-ET to date, the purpose of this study was to investigate the effect of two different luteal phase support protocols in patients undergoing assisted reproductive technologies.

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  • Early 2022 saw a spike in monkeypox virus infections in the UK, with over 80,000 global cases primarily among gay and bisexual men, prompting public health agencies to offer the IMVANEX Smallpox vaccination to high-risk individuals.
  • Researchers developed various ELISA tests to analyze antibody responses from individuals who received different doses of the Smallpox vaccine and those previously infected with MPXV, finding that antibody levels increased with booster doses.
  • The study identified specific poxvirus antigens linked to MPXV infection, revealing similar antibody responses in those infected and vaccinated, paving the way for future vaccine and therapeutic advancements.
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  • The Omicron variant (B.1.1.529) of SARS-CoV-2 has many mutations that make it highly transmissible and partially able to evade neutralizing antibodies, but vaccinated individuals still have some protection against severe disease due to strong cellular immunity.
  • In a study involving healthcare workers who received three doses of the BioNTech mRNA vaccine, it was found that their B and T cell responses were enhanced against older variants but less effective against the Omicron spike protein.
  • Those previously infected with earlier variants (like Alpha) had reduced antibody responses against Omicron, while uninfected individuals who got infected with Omicron showed improved immunity to earlier variants but weaker responses against Omicron itself.
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Objective: We examined whether the timing of maternal-neonate skin-to-skin contact (SSC) predicts infant emotional and cognitive development in the context of chronic maternal perinatal stress and depressive symptoms.

Study Design: This secondary analysis included data from a group-based prenatal care clinical trial for 37 pregnant women with low household income. Mothers completed the Perceived Stress Scale (PSS), and the Center for Epidemiologic Studies Depression Scale (CES-D) during the third trimester and postpartum.

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Purpose: To evaluate the efficiency and efficacy of corifollitropin alfa (follicle-stimulating hormone-carboxy terminal peptide) in the treatment of poor responder patients.

Methods: A total of 85 poor responder patients with a mean age 40.2±3.

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A severe gonadotropin deficiency together with chronic estradiol deficiency leading to amenorrhea characterizes patients suffering from hypogonadotropic hypogonadism. Administration of both follicle-stimulating hormone (FSH) and luteinizing hormone (LH) to these patients has been shown to be essential in achieving successful stimulation of follicular development, ovulation, and rescue of fertility. In recent years, the availability of both recombinant FSH (rFSH) and recombinant LH (rLH) has provided a new therapeutic option for the stimulation of follicular growth in hypopituitary-hypogonadotropic women (World Health Organization Group I).

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Objective: This study aimed to investigate the effect of transferring embryos with different qualities on pregnancy and implantation rates.

Patients And Methods: In a retrospective multi-center study we analyzed 761 patients aged ≤ 35 years who had an elective transfer of one or two embryos. Embryos were scored morphologically by their developmental stage into good "A" and impaired "B" embryos.

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The Assisted Reproductive Technology (ART) was born in order to help couples with infertility issues in having a baby. The first treatments of IVF used the spontaneous cycle of the women, with the retrieval of only one oocyte. Further studies have shown that it is possible to induce ovulation by administrating gonadotropins during the menstrual cycle, in order to obtain a higher number of oocytes.

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Objective: Evaluate the role of midwife with no experience in assisting ultrasound guided embryo transfer.

Methods: A prospective randomized study comparing results of IVF after ultrasound guided embryo transfer (ET) assisted either by a midwife with no formal training in US, or by a doctor trained to guide. ET procedure was performed on 553 patients undergoing ultrasound guided ET.

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Background: Recently, an increased scientific interest was focused on mild approaches for ovarian stimulation in clinical practice. Milder stimulation aims to develop safer and more patient-friendly protocols which are more physiological, less drug use, less expensive and the risks of treatment are highly minimized.

Aim: To investigate the efficacy and safety of a mild ovarian stimulation protocol in patients at high risk of developing ovarian hyperstimulation syndrome (OHSS), compared to conventional long down-regulation protocol.

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Introduction: Cystosarcoma phyllodes are very rare tumors and may be difficult to diagnose clinically.

Background: Fibroadenomas have long been considered benign hyperplastic lesions rather than true neoplastic processes. However, previous clonality studies have shown differing results.

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Background: Ovarian stimulation is an integral procedure in assisted reproduction treatment. It is achieved by the administration of exogenous gonadotropins to increase follicular recruitment and oocyte yield. Optimization of ovarian stimulation is an essential prerequisite for the success of IVF treatment.

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The purpose of this study is to report successful pregnancies and deliveries from embryos derived from vitrified-warmed oocytes injected with frozen-thawed testicular sperm. After the vitrification-warming procedure, surviving oocytes from 11 patients were microinjected with thawed testicular spermatozoa, and subsequent viable cleaving embryos were transferred, resulting in four clinical pregnancies.

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To compare IVF outcome in ovarian stimulation protocols with recombinant FSH plus recombinant LH versus hMG, 122 patients were randomized into two study groups: group A, patients treated with urinary hMG, and group B, patients treated with rFSH plus rLH. The two groups proved to be comparable to the main IVF outcome (pregnancy rate, implantation rate, oocytes, and embryos quality), with an increasing risk of ovarian hyperstimulation in the Pergoveris group.

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Objective: To evaluate the impact of follicle-stimulating hormone (FSH) with different glycosylation patterns on oocyte quality and clinical outcomes in an in vitro fertilization (IVF) treatment program.

Design: Prospective randomized, open-label, clinical study.

Setting: Assisted reproduction center.

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This study aimed to evaluate the efficacy of embryo vitrification as an emergency procedure for patients at high risk of developing ovarian hyperstimulation syndrome (OHSS). A total of 69 embryos, derived from 24 patients for whom embryo transfer could not be performed because of the risk of developing OHSS, were vitrified and warmed for deferred embryo transfer. Surviving embryos were transferred, resulting in 10 clinical pregnancies, of which 4 were successfully delivered and the remaining 6 are still ongoing.

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Purpose: To evaluate the efficacy of using both urinary and recombinant FSH in a combined protocol for ovarian stimulation in an IVF treatment program.

Method: A total of 119 infertile couples undergoing ICSI treatment were randomized prospectively in this study. After a standard down-regulation with GnRH analogue, the patients were randomized in 2 groups 58 received combined urinary and recombinant FSH, starting with uFSH and then rFSH, and 61 controls received only recombinant FSH.

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Purpose: This study was designed to examine the effect of bacterial contamination on in vitro fertilization treatment outcomes.

Method: In a prospective clinical trial, 152 patients aged 23-38 years, mean 33.3 +/- 4.

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Purpose: To evaluate the effect of the individual physician performing embryo transfer, on clinical pregnancy rates.

Method: Data from a total of 485 consecutive embryo transfers performed on 485 women aged 23-37 years were prospectively collected for this study. All patients underwent a standard downregulation long protocol for ovarian stimulation.

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Objective: To evaluate a vitrification solution using a mixture of two cryprotectant agents, dimethyl sulfoxide and ethylyne glycol plus sucrose, on the survival of human oocytes.

Design: Clinical study of cryopreservation of human metaphase II (MII) oocytes by vitrification.

Setting: University-affiliated IVF center.

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Several studies have shown that FSH treatment can improve sperm production quantitatively and increase the spermatogonial population in oligozoospermic men with normal hormonal profiles. In this study, we describe the results of long-term gonadotropin therapy of normogonadotropic patients with nonobstructive azoospermia.

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Objective: To report on the treatment with recombinant FSH of an azoospermic normogonadotropic patient with a Y-chromosome microdeletion.

Design: Case report.

Setting: An assisted reproduction center.

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Ultrastructural changes in human pronuclear oocytes were evaluated after cooling in the presence or absence of cryoprotectant.

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The efficacy of cryopreservation by direct plunging into liquid nitrogen (vitrification) of human pronuclear oocytes using open pulled straws with a super-finely pulled tip, as well as the ultrastructural changes caused by cooling and vitrification, were evaluated. Clinical and electron microscopic studies of cooled and vitrified oocytes were performed. Oocytes were cooled to 4 degrees C in the presence and absence of cryoprotectants, vitrified, warmed, cultured and transferred.

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