Yan Zhang

OBJECTIVE: There is currently no consensus on the risk factors for recurrent ovarian endometrioma after surgery. This study aimed to identify independent risk factors and develop a clinical nomogram to predict postoperative recurrence. MET…

BACKGROUND: Smoking and alcohol consumption have been consistently associated with adverse female reproductive outcomes; however, whether these associations reflect causal effects or are mediated by specific circulating metabolites remains …

BACKGROUND: Endometriosis (EMs) is a common gynecological disorder associated with infertility. EMs patients often require assisted reproductive technology (ART) but exhibit lower success rates. This study aimed to characterize the follicul…

BACKGROUND: Endometriosis (EMs) is characterized by chronic inflammation, recurrent bleeding, oxidative stress, and disrupted local iron homeostasis. Although macrophages are important components of the immune microenvironment in EMs, their…

RESEARCH QUESTION: Is surgery effective in decreasing iron deposition in the ovarian tissue surrounding an ovarian endometrioma? DESIGN: This cohort study was conducted in China between July 2023 and April 2024. Seventy-nine patients with …

OBJECTIVE: To compare the therapeutic effects of laparoscopic recanalization and laparotomy recanalization on tubal patency restoration after tubal sterilization. METHODS: A retrospective analysis was conducted on the clinical data of 122 …

Gastric metastasis from breast cancer (GMBC) is a rare but diagnostically challenging condition, whose clinical and imaging features often mimic primary gastric cancer or treatment-related adverse effects. This study integrates a detailed c…

OBJECTIVE: To develop and compare a random survival forest (RSF) model and a Cox regression model-for predicting postoperative recurrence in patients with ovarian endometrioma. METHODS: The primary outcomes of the study were the recurrence…

BACKGROUND: The clinical benefit of immunotherapy in ovarian cancer (OC) remains limited. The primary reason is not simply a lack of immune activation, but rather the marked spatiotemporal heterogeneity of the tumour immune microenvironment…

BACKGROUND: Adenomyosis (AM) is a common benign gynecological disease, defined by the presence of endometrial glands and stroma deep within the myometrium, which is associated with hypertrophy and hyperplasia of the adjacent myometrium. It …

PURPOSE: To investigate the dynamic changes of serum Anti-Müllerian Hormone (AMH) and Inhibin B (INHB) during controlled ovarian hyperstimulation (COH) in patients with polycystic ovarian syndrome (PCOS) and analyze their correlation with C…

Repeated implantation failure (RIF) presents a significant challenge to in vitro fertilization (IVF), and abnormalities in the endometrium often play a crucial role in RIF. To enhance and deepen our understanding of tissue context in the en…

OBJECTIVE: This study conducted a retrospective matched analysis to explore the differences and potential associations in perinatal complications between pregnancies achieved through in-vitro fertilization-embryo transfer (IVF-ET) and natur…

OBJECTIVE: To explore the regulatory function and mechanism of CXCL14 in endometriosis. METHODS: Quantitative real-time polymerase chain reaction (qRT-PCR) was used to examine the expression of CXCL14 in eutopic and ectopic endometrial str…

Epigenetic regulation of placental development and pregnancy-related disease processes has recently been a hot research topic. Implantation and subsequent placental development depend on carefully orchestrated interactions between fetal and…

BACKGROUND: Endometriosis is a major contributor to infertility and pelvic pain, which brings a significant burden on family and society. Although the data of endometriosis in Global Burden of Disease (GBD) 2019 was reviewed, no updated ana…

BACKGROUND: Osteoporosis is a systemic skeletal disorder characterized by reduced bone mass and microarchitectural deterioration of bone tissue. Our previous investigation provided preliminary evidence that single nucleotide polymorphisms (…

Non-peptide gonadotropin-releasing hormone (GnRH) receptor antagonists exhibit remarkable potency and specificity in inhibiting GnRH receptor activity. The orally administered versions of these drugs, notably elagolix and relugolix, have ob…

BACKGROUND: To evaluate maternal and perinatal outcomes in women with different adenomyosis phenotypes and to assess the impact of placental attachment site in patients with intrinsic adenomyosis. METHODS: This retrospective cohort study a…

BACKGROUND: The effect of pre-pregnancy intrauterine device (IUD) use on subsequent preterm birth (PTB) remains unclear. We aim to investigate the association between IUD use before pregnancy and subsequent PTB. METHODS: A total of 240,437…

INTRODUCTION: Recurrent spontaneous abortion (RSA) represents a significant challenge in obstetrics and reproductive medicine. Causative factors in 40%-50% of RSA couples remain unknown, a condition termed unexplained recurrent spontaneous …

Abstract Objectives A chronic inflammatory disease, endometriosis is recognized by the ectopic tissue growth of endometrium, but its pathogenesis has not been fully elucidated. Recently, miRNAs have been identified as a key regulator in the…

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…

OBJECTIVE: Investigating the utility of serum exosomal markers CA125, HE4, and C5a, both individually and in combination, for distinguishing between benign and malignant ovarian tumors. METHODS: In this study, we selected a total of 234 pa…

ETHNOPHARMACOLOGICAL RELEVANCE: Gynecological disorders have the characteristics of high incidence and recurrence rate, which sorely affects female's health. Since ancient times, traditional Chinese medicine (TCM), especially tonic medicine…