Lei Jin

OBJECTIVE: To investigate the influence of oviductal extracellular vesicles from patients with endometriosis on early embryo development. DESIGN: In vitro experimental study. SETTING: University-affiliated hospital. PATIENTS: Women with …

Kisspeptins, encoded by the KISS1 gene, are a family of polypeptides that bind the kisspeptin receptor (KISS1R) to perform biological functions. Produced mainly in the hypothalamus, these neuropeptides regulate the pulsatile secretion of Gn…

Latent tuberculosis infection (LTBI) widely exists in patients with unexplained infertility, and whether LTBI would affect the ovarian reserve and pregnancy outcome of infertile women undergoing intrauterine insemination (IUI) is still unkn…

OBJECTIVE: To determine the optimal endometrial preparation protocol for a frozen embryo transfer in patients with endometriosis. DESIGN: Retrospective cohort study. SETTING: Tertiary care academic medical center. PATIENT(S): One thousan…

BACKGROUND: The association between body mass index (BMI) and IVF cycle outcomes remain inconclusive. In addition, the impact of BMI on perinatal outcomes has been less well-studied. The aim of this study was to assess the effects of BMI on…

BACKGROUND: To compare the efficacy and safety of follitropin delta in its individualized fixed-dose regimen with follitropin alfa in a conventional adjustable dosing regimen in Chinese women.  METHODS: This was a subgroup analysis of the r…

To estimate the effects of early cervical lesions (ECL) on female reproductive function and IVF/ICSI cycle outcomes, a retrospective cohort study involving 111 infertile women from 2014 to 2019 was performed. Thirty-seven women with a histo…

BACKGROUND: Some concern has been expressed regarding the negative effects of low-level ionizing radiation exposure in the context of radiological evaluation prior to IVF/ICSI treatment, but the available evidence is limited and conflicting…

BACKGROUND: It has been demonstrated that a thin endometrium is associated with a lower chance of pregnancy, but there is a paucity of research into whether a thin endometrium adversely affects perinatal outcomes. METHODS: This was a retro…

BACKGROUND: The emerging epitranscriptome plays an essential role in female fertility. As the most prevalent internal mRNA modification, N6-methyladenine (m6A) methylation regulate mRNA fate and translational efficiency. However, whether m6…

BACKGROUND: Different endometrial patterns have an important effect on the relationship between endometrial thickness (EMT) and clinical pregnancy rate. There is a significant difference in age, selection of cycle protocols, and clinical pr…

OBJECTIVE: To evaluate the effectiveness of ultra-long protocol on reproductive and controlled ovarian hyperstimulation outcome in in vitro fertilization/intracytoplasmic sperm injection-embryo transfer (IVF/ICSI-ET) in infertile women with…

BACKGROUND: Recent studies have consistently shown that AFC and serum AMH are good predictors of ovarian response and have shown strong correlations. However, it is not unusual for reproductive medicine specialists to encounter discordance …

AIMS: This study aimed to explore the value of ovarian reserve tests (ORTs) for predicting poor ovary response (POR) and whether an age cutoff could improve this forecasting, so as to facilitate clinical decision-making for women undergoing…

OBJECTIVE: To investigate the association between baseline serum Anti-Müllerian hormone (AMH) levels and IVF/ICSI outcomes in women with polycystic ovary syndrome (PCOS). DESIGN: Retrospective study. SETTING: Reproductive medicine center …

BACKGROUND: To minimize the rate of in vitro fertilization (IVF)- associated multiple-embryo gestation, significant efforts have been made. Previous studies related to machine learning in IVF mainly focused on selecting the top-quality embr…

BACKGROUND: down-regulation has been widely used in IVF treatment; however, it lacks reports on the impact of down-regulation on obstetrics and perinatal outcomes. The purpose of this study was to compare the obstetrics and perinatal outcom…

IMPORTANCE: Many indicators need to be considered when judging the condition of patients with infertility, which makes diagnosis and treatment complicated. OBJECTIVE: To construct a dynamic scoring system for infertility to assist clinicia…

BACKGROUND: The study aimed to investigate whether and how general and partial time intervals between processes, from human chorionic gonadotrophin (HCG) trigger to intracytoplasmic sperm injection (ICSI), affected the laboratory and reprod…

BACKGROUND: Adverse obstetric outcomes are correlated with altered circulating hormone levels at the time implantation by the trophectoderm. What' more, embryo freezing process may also have adverse effect on perinatal outcomes. This study …

Artificial intelligence (AI) has experienced rapid growth over the past few years, moving from the experimental to the implementation phase in various fields, including medicine. Advances in learning algorithms and theories, the availabilit…

The objective of this paper was to compare the effect of recombinant follicle-stimulating hormone (rFSH) and urinary follicle-stimulating hormone (uFSH) on pregnancy rates and live birth rates with the gonadotropin-releasing hormone (GnRH) …

PURPOSE: To identify the disease-causing gene in a family with female infertility and fertilization failure. METHODS: Whole-exome sequencing and Sanger sequencing were used to identify the disease-causing gene in a female with infertility …

OBJECTIVE: This study aims to explore the differences of the ovarian stimulation (OS) characteristics, laboratory, and clinical outcomes between follicular-phase single-dose gonadotropin-releasing hormone (GnRH) agonist protocol and GnRH an…

Vascular endothelial growth factor (VEGF) plays critical roles in angiogenesis and vasculogenesis, which are associated with post-stroke functional recovery. However, the effects of the VEGFA polymorphisms on the outcome of ischemic stroke …