Haiyan Yang

Women's reproductive health plays a pivotal role in both longevity and the aging process. We conduct Mendelian randomization (MR) and observational analyses to investigate these relationships. Univariate MR analyses reveal that older age at…

OBJECTIVES: Whether diverse metabolic statuses within a similar body mass index (BMI) category associate with different in vitro fertilization (IVF) outcomes. DESIGN: A retrospective cohort study. SETTING: Wenzhou, Zhengjiang Province, Ch…

STUDY QUESTION: Is there an association between changes in endometrial thickness (EMT) following progesterone administration and pregnancy outcomes in frozen-thawed embryo transfers (FETs) at Day 3 (D3) and blastocyst stages? SUMMARY ANSWE…

Polycystic ovary syndrome (PCOS) affects reproductive and cardiometabolic health, yet its pathogenesis remains unclear. Emerging evidence links hemoglobin levels to metabolic disorders, suggesting a potential role in PCOS development. Here,…

BACKGROUND: Poor oocyte quality remains one of the major challenges for polycystic ovary syndrome (PCOS) patients during in vitro fertilization (IVF) treatment. Granulosa cells (GCs) in PCOS display altered functions and could cause an unfa…

BACKGROUND: Females with diminished ovarian reserve (DOR) have significantly lower cumulative live birth rates (CLBRs) than females with normal ovarian reserve. A subset of young infertile patients, whose ovarian reserve is declining but ha…

OBJECTIVE: To investigate the effects of β-cell dysfunction on IVF outcomes in women with PCOS. METHODS: This retrospective cohort study includes 1,212 women with PCOS undergoing their first IVF cycle between September 2010 and December 20…

CONTEXT: Extensive studies have provided considerable evidence suggesting the role of inflammation in the development of female reproductive diseases. However, causality has not been established. OBJECTIVE: To explore whether genetically d…

The effect of the intramural fibroids not distorting the cavity remains controversial on implantation and pregnancy. The aim of this study was to examine the impact of non-cavity distorting intramural fibroids on endometrium. Fifty-six wome…

BACKGROUND: The concentration of human chorionic gonadotropin (hCG)/ luteinizing hormone (LH) after triggering is generally accepted as a predictor of the normal ovarian response to the trigger, but few studies have explored the distributio…

BACKGROUND: The number of oocytes retrieved does not always coincide with the number of follicles aspirated in in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) treatment. Patients with high expectation of retrieval sometim…

BACKGROUND: Kisspeptin is the leading upstream regulator of pulsatile and surge Gonadotrophin-Releasing Hormone secretion (GnRH) in the hypothalamus, which acts as the key governor of the hypothalamic-pituitary-ovary axis. MAIN TEXT: Exoge…

BACKGROUND: Endometrioid adenocarcinoma (EAC) is the most common subtype of endometrial cancer (EC) and is an estrogen-related cancer. In this study, we sought to investigate the expressions and mechanism of action of 17β-estradiol (E2) and…

OBJECTIVE: The aim of this study was to investigate the effectiveness of ornidazole in inhibiting the progression of endometriosis in a rat model. DESIGN: This was an in vivo experiment, including the ornidazole group (n = 16) and a contro…

BACKGROUND: Endometriosis is a chronic condition that affects women of child-bearing age. Since the etiology and pathogenesis of endometriosis have not been fully elucidated, it is important to investigate the mechanisms that lead to the de…

BACKGROUND: Pentraxin 3 (PTX3) - a crucial humoral innate immunity component - is related to obesity and cardiovascular complications in women who suffer from polycystic ovary syndrome (PCOS). However, the circulating PTX3 level in PCOS is …

BACKGROUND: Recurrent implantation failure (RIF) is a major limitation of assisted reproductive technology, which is associated with impaired endometrial receptivity. Although N6-methyladenosine (m6A) has been demonstrated to be involved in…

BACKGROUND: Our study aimed to investigate if serum prolactin (PRL) levels associated with insulin resistance and beta-cell dysfunction in infertile patients with polycystic ovary syndrome (PCOS). METHODS: This was a retrospective cross-se…

Uric acid (UA) is the end metabolic product of purine metabolism. Early on, UA was considered to be a metabolite with a certain antioxidant capacity. As research has progressed, other properties of UA have been explored, and its association…

BACKGROUND This retrospective study aimed to evaluate the predictive value of the follicular output rate (FORT) on the pregnancy outcome of patients with polycystic ovary syndrome (PCOS) undergoing in vitro fertilization and embryo transfer…

Broad-spectrum antibiotics are the conservative treatment for tubo-ovarian abscess (TOA) or pelvic abscess, but the failure rate of antibiotic therapy remains higher in patients with a larger abscess. The present study aimed to evaluate the…

Ovarian reserve reflects both the quantity and quality of oocytes available for procreation, and is affected by many known and unknown factors. ABO blood type is related to a number of infertility processes, but it is unclear whether and ho…

Objective To investigate the curative effect comparison of medicine treatment between Mifepristone and Gestrinone after laparoscopy in treating ovarian cysts in endometriosis.Methods 56 patients with ovarian endometrial implantation were ra…

Objective To evaluate the effect of serum LH level on the day of superovulation start on the prolonged gonadotropin-releasing hormone ngonist therapy on the outcomes of in vitro fertilization and embryo transfer (IVF-ET) in patents with ova…