BACKGROUND: Though idiopathic urethral strictures are a common form of strictures, little is understood about the pathophysiology leading to their development. This retrospective cohort study sought to analyze the risk of environmental toxi…
BACKGROUND: Nonobstructive azoospermia (NOA) and primary ovarian insufficiency (POI) have common genetics that may also predispose patients to cancer risk. OBJECTIVES: We hypothesized that NOA or severe oligozoospermia and the risk of male…
OBJECTIVE: To investigate the power of DNA methylation variability in sperm cells in assessing male fertility potential. DESIGN: Retrospective cohort. SETTING: Fertility care centers. PATIENTS: Male patients seeking infertility treatment…
OBJECTIVE: To describe the prevalence and treatment characteristics of assisted reproductive technology (ART) cycles involving specific male factor infertility diagnoses in the United States. DESIGN: Cross-sectional analysis of ART cycles …
STUDY QUESTION: What thresholds for total sperm count, sperm concentration, progressive motility, and total progressive motile sperm count (TPMC) are associated with earlier time-to-conception in couples undergoing fertility evaluation? SU…
OBJECTIVE: To evaluate the relationship between epigenetic patterns in sperm and fecundity. DESIGN: Prospective study. SETTING: Academic andrology and in vitro fertilization laboratory. PATIENT(S): Twenty-seven semen samples from couples…
OBJECTIVE: To assess the effects of both male and female body mass index (BMI), individually and combined, on IVF outcomes. DESIGN: Prospective cohort study. SETTING: University fertility center. PATIENT(S): All couples undergoing first …