Frontiers in endocrinology

OBJECTIVE: To evaluate the impact of endometrial thickness (EMT) variations on clinical outcomes in two distinct ovarian stimulation protocols: the early-follicular long-acting GnRH agonist protocol and the midluteal short-acting GnRH agoni…

BACKGROUND: Ovarian cysts are common in reproductive-aged women and may affect ovarian reserve, thereby impacting fertility potential. This study aimed to evaluate the differential impact of various ovarian cyst types and sizes on ovarian r…

BACKGROUND: The objective of this study was to assess the trade-off between cycle continuation and cancellation in slow ovarian response (SOR) patients, and to evaluate the impact of SOR on embryo developmental potential and clinical pregna…

Chronic endometritis (CE) is a subtle but persistent inflammatory disorder of the endometrium that is often underdiagnosed due to its asymptomatic or non-specific presentation. The etiology of CE primarily involves microbial infections and …

BACKGROUND: Oxidative stress and metabolic disorders significantly contribute to the development of polycystic ovarian syndrome (PCOS). Heme oxygenase-1 (HMOX1) plays a key role in the degradation of heme and the regulation of oxidative str…

Mitophagy is a catabolic mechanism that selectively degrades damaged mitochondria and precisely modulates mitochondrial content, thereby maintaining intracellular homeostasis under stress conditions. To date, most reviews on mitophagy have …

BACKGROUND: Diet, lifestyle, and oxidative stress have been linked to female infertility, with the Oxidative Balance Score (OBS) serving as a comprehensive indicator of an individual's oxidative and antioxidant status. This study aims to in…

Lipidomics, an emerging field in medical research, has deepened our understanding of lipid metabolism, signal transduction pathways, and intercellular communication through qualitative and quantitative analyses of patient lipid profiles. It…

OBJECTIVE: To investigate the associations between triglyceride glucose-body mass index (TyG-BMI) and reproductive outcomes in women with polycystic ovary syndrome (PCOS) undergoing frozen embryo transfer (FET). METHODS: This retrospective…

BACKGROUND: E2 is important in follicular development. During monitoring of stimulated cycles, serum levels of E2 are expected to increase steadily with follicle growth until final maturation. Unexpected E2 decline before triggering is repo…

Endometriosis, the most prevalent cause of infertility, is associated with anatomical distortion leading to adhesions and fibrosis, as well as endocrine abnormalities and immune disorders. This review discusses the mechanisms underlying end…

INTRODUCTION: With ongoing global lifestyle changes and economic development, the prevalence of hyperuricemia has steadily increased. Elevated levels of serum uric acid (SUA) have been linked to gestational diabetes mellitus (GDM); however,…

BACKGROUND: Fertility status is a marker of future health, and female infertility has been shown to be an important medical and social problem. Life's Essential 8 ("LE8") is a comprehensive cardiovascular health assessment proposed by the A…

BACKGROUND: A newly developed technique, Atherogenic Index of Plasma (AIP), is linked to numerous metabolic disorders. Prior researches have indicated strong correlation between AIP and waist circumference (WC), as well as between WC and in…

BACKGROUND: Hereditary primary hyperparathyroidism (PHPT) accounts for 5-10% of all PHPT cases, necessitating genetic testing for diagnosis and management. Among these, hyperparathyroidism-jaw tumor syndrome (HPT-JT) is an autosomal dominan…

BACKGROUND: Assisted reproductive technology (ART) has been reported to have negative effects on maternal and neonatal health. Ovulation induction (OI) was reported to be associated with alteration of epigenetic modification of mice embryos…

OBJECTIVE: The objective was to analyze the impact of the uterine artery pulsatility index (PI) on pregnancy outcomes by measuring uterine artery blood flow on the day of endometrial transformation in patients undergoing frozen-thawed embry…

Anti-Müllerian hormone (AMH) is a peptide belonging to the transforming growth factor beta superfamily and acts exclusively through its receptor type 2 (AMHR2). From the 8th week of pregnancy, AMH is produced by Sertoli cells, and from the …

Oxidative stress (OS) is established as a key factor in the etiology of both male and female infertility, arising from an imbalance between reactive oxygen species (ROS) production and the endogenous antioxidant (AOX) defenses. In men, OS a…

BACKGROUND: Amphiregulin (AR) is a growth factor that resembles the epidermal growth factor (EGF) and serves various functions in different cells. However, no systematic studies or reports on the role of AR in human oocytes have currently b…

PurposeThis study aimed to develop a predictive model for assessing clinical pregnancy probabilities in patients undergoing frozen-thawed cycles with single Day 6 blastocyst transfers.MethodsWe conducted a two-center retrospective cohort st…

OBJECTIVE: This study aims to evaluate the effectiveness of the Vaginal Microecology Evaluation System (VMES) in assessing the dynamics of the vaginal microbiome (VM) throughout the process of in vitro fertilization and embryo transfer (IVF…

OBJECTIVE: To investigate the relationship between dietary inflammatory index (DII) scores and infertility in US adults aged 18 to 45. METHODS: Data were gathered from the 2013-2018 National Health and Nutrition Examination Survey (NHANES)…

OBJECTIVE: While infertility affects about 15% of women during their reproductive years, its long-term impact on stroke mortality after this period remains unclear. This study aims to investigate the association between infertility and stro…

BACKGROUND: The correlation between oxidative stress and female infertility pathogenesis was established, and the oxidative balance score (OBS) can serve as a measure of overall oxidative stress burden within an individual. Prior reports ha…