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Gynaecology
Patients with endometriosis in the vagina, bowel, or bladder experience a prolonged diagnostic delay: an observational study
M E Madsen and others
STUDY QUESTION Do the diagnostic delay and symptoms differ between endometriosis patients with advanced disease, defined as endometriosis involving the vagina, intestine, rectovaginal septum, or bladder (eVIRB), compared to patients without endometriosis in these locations (non-eVIRB)? SUMMARY ANSWER Patients with advanced ...
Reproductive epidemiology
Bias due to non-consent in assisted reproductive treatment cohort studies: consent for disclosure to non-contact research in the Human Fertilisation and Embryology Authority register
Fiskani J M Kondowe and others
STUDY QUESTION Is patient consent to research associated with the distribution of population characteristics and study outcomes in ART cohort studies? SUMMARY ANSWER The distribution of population characteristics in the patient consent subset differs from that in the non-consent subset and is not fully representative of ...
Andrology
Optimizing Y-chromosome microdeletion screening in Chinese male infertility patients: a large-scale multi-centre study on incidence
Wei-Kang Chen and others
STUDY QUESTION What is the optimal sperm concentration threshold for screening Y-chromosome microdeletions (YCMs) in male infertility patients? SUMMARY ANSWER This study identified three clinically relevant screening thresholds: an receiver operating characteristic (ROC)-optimal cutoff at 0.45 million sperm/ml, a ...
Infertility
Pregnancy outcomes with increasing maternal age, greater than 40 years, in donor oocyte cycles
Sabbagh Riwa and others
STUDY QUESTION Do IVF outcomes differ in patients over the age of 40 using donor oocytes? SUMMARY ANSWER Even with the use of donor oocytes, maternal age appears to have an impact on live birth (LB) rate and perinatal outcomes. WHAT IS KNOWN ALREADY Maternal age has a significant impact on the outcome of IVF, mainly ...
Gynaecology
Plasma metabolites associated with endometriosis in adolescents and young adults
Nan Lin and others
STUDY QUESTION What are the plasma metabolomics profiles associated with endometriosis in adolescents and young adults? SUMMARY ANSWER Our findings show dysregulation of plasma metabolomic profiles in adolescents and young adults with endometriosis, revealing systemic elevation of fatty acyls and ceramides in endometriosis ...
Puberty, aging and HRT
Clinical presentation of congenital hypogonadotropic hypogonadism in males with delayed puberty according to genetic etiology: a systematic review and meta-analysis after reclassification of gene variants
Sebastián Castro and others
STUDY QUESTION Which phenotypes can be confidently linked to a genetic etiology in males with congenital hypogonadotropic hypogonadism (CHH) resulting in absent or arrested puberty? SUMMARY ANSWER In this systematic review and reclassification of the disease-causing potential of gene variants using the recommendations of ...
Opinion
Is it justified to offer intrauterine infusion of autologous PRP in women with repeated implantation failure?
Evangelia T Katsika and others
In recent years, an increased interest in the efficacy of intrauterine infusion of autologous platelet-rich plasma (PRP) in women with repeated implantation failure (RIF) has resulted in the publication of 13 randomized controlled trials (RCTs) and 11 meta-analyses. Although these meta-analyses support an increase in ...
Psychology and counselling
From hope to hesitation: why couples fail to return for infertility treatment after the first consultation
Camilla Scognamiglio and others
STUDY QUESTION What are the key factors that influence couples’ decision not to return for fertility treatment after their first consultation? SUMMARY ANSWER Advanced maternal age, lower ovarian reserve, and eligibility for heterologous fertilization are primary determinants of non-return among couples. WHAT IS KNOWN ...
Mini-review
Mitochondrial replacement techniques to resolve mitochondrial dysfunction and ooplasmic deficiencies: where are we now?
Jessica Subirá and others
Mitochondria are the powerhouses of cell and play crucial roles in proper oocyte competence, fertilization, and early embryo development. Maternally inherited mitochondrial DNA (mtDNA) mutations can have serious implications for individuals, leading to life-threatening disorders and contribute to ovarian ageing and female ...
Andrology
The major phytocannabinoids, delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD), affect the function of CatSper calcium channels in human sperm
Lydia Wehrli and others
STUDY QUESTION Do the main psychoactive phytocannabinoid delta-9-tetrahydrocannabinol (THC) and its non-psychoactive analog cannabidiol (CBD) affect human sperm function? SUMMARY ANSWER THC and CBD affect the sperm-specific Ca 2+ channel CatSper, suppress activation of the channel by progesterone (P4) and prostaglandin E1 ...
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