Han Yan

No ORCID on file · 11 papers in corpus · active 2009-2026

Study types

  • article 4
  • other 3

Condition tags

  • endometriosis 4
  • endometrioma 2
  • dysmenorrhea 1
  • infertility 1
other 2026
International journal of women's health ·doi:10.2147/IJWH.S587383

BACKGROUND: Recurrence of endometrioma and dysmenorrhea after surgery remains a major clinical challenge. Identifying reliable risk factors is essential to optimize individualized treatment and follow-up strategies. However, large-scale dat…

article 2026
·doi:10.1097/ogx.0000000000001557

Importance: Endometriosis, a chronic inflammatory condition affecting 10% of reproductive-aged individuals, remains underdiagnosed and poorly managed due to a limited understanding of its pathogenesis. Emerging evidence highlights the gut a…

other 2026
Obstetrical & gynecological survey ·doi:10.1097/OGX.0000000000001557

IMPORTANCE: Endometriosis, a chronic inflammatory condition affecting 10% of reproductive-aged individuals, remains underdiagnosed and poorly managed due to a limited understanding of its pathogenesis. Emerging evidence highlights the gut a…

2026
Open life sciences ·doi:10.1515/biol-2025-1252

Currently available classification criteria for obstetric antiphospholipid syndrome (OAPS) are often overly strict and may miss a considerable number of patients with so-called "non-criteria-defined OAPS". We aimed to establish a diagnostic…

other 2025
International journal of women's health ·doi:10.2147/IJWH.S504181

BACKGROUND: Previous studies have suggested that aging may influence reproductive functions of female. Nonetheless, the causal relationship between aging and endometriosis has yet to be completely understood. OBJECTIVE: This study aims to …

article 2024
International Journal of Gynecology & Obstetrics ·doi:10.1002/ijgo.16096

OBJECTIVE: This study aims to investigate the association between dietary intake of niacin and vitamin B6 and the prevalence of endometriosis using data from the National Health and Nutrition Examination Survey (NHANES) 2003-2006. METHODS:…

2022
Frontiers in endocrinology ·doi:10.3389/fendo.2022.915923

ObjectiveThe aim of this study is to investigate the optimal estradiol (E2) level on the day of gonadotropin-releasing hormone antagonist (GnRH-ant) initiation to maximize the clinical pregnancy rate (CPR) after fresh embryo transfer among …

article 2022
Frontiers in endocrinology ·doi:10.3389/fendo.2022.798434

OBJECTIVE: To evaluate the pregnancy outcomes of progestin-primed ovarian stimulation (PPOS) protocol for patients with endometrioma underwent in vitro fertilization/intra-cytoplasmic sperm injection embryo transfer (IVF/ICSI-ET). DESIGN: …

2022
Frontiers in endocrinology ·doi:10.3389/fendo.2022.839773

ObjectiveTo retrospectively analyze the association of serum estradiol (E2) levels on human chorionic gonadotropin (hCG) trigger day and live birth rates (LBRs) in women undergoing fresh embryo transfer and not exhibiting polycystic ovary s…

2021
Frontiers in endocrinology ·doi:10.3389/fendo.2021.683236

ObjectiveTo evaluate the risk factors for different types of pregnancy losses after embryo transfer (ET).DesignRetrospective cohort study.SettingReproductive medicine center.ParticipantsA total of 15,210 pregnancies after fresh and frozen-t…

article 2009
·doi:10.1371/journal.pgen.1000420

For females, menarche is a most significant physiological event. Age at menarche (AAM) is a trait with high genetic determination and is associated with major complex diseases in women. However, specific genes for AAM variation are largely …