Liyi Cai

ORCID: 0009-0003-3024-038X · 4 papers in corpus
observational 2026
Association between urinary hCG trajectories and the risk of miscarriage in women undergoing embryo transfer: a prospective cohort study
Frontiers in endocrinology ·doi:10.3389/fendo.2026.1822884

OBJECTIVE: To investigate the association between the dynamic trajectories of urinary human chorionic gonadotropin (hCG) and the risk of early miscarriage after embryo transfer. METHODS: In this prospective cohort study conducted in Hebei …

observational 2026
Comparative efficacy of modified antagonist protocols combining clomiphene citrate or letrozole for ovarian stimulation in patients with normal ovarian reserve
Frontiers in endocrinology ·doi:10.3389/fendo.2026.1814317

BACKGROUND: To compare the efficacy of modified gonadotropin-releasing hormone (GnRH) antagonist protocols combining clomiphene citrate (CC) or letrozole (LE) versus a conventional antagonist protocol in patients with normal ovarian reserve…

observational 2025
Association between hatching status and pregnancy outcomes in single blastocyst transfers: a retrospective cohort analysis
Journal of assisted reproduction and genetics ·doi:10.1007/s10815-025-03450-4

OBJECTIVE: To examine the potential association between blastocyst hatching status and pregnancy outcomes following single blastocyst transfer. METHODS: This is a retrospective cohort. We screened all frozen-thawed single blastocyst transf…

observational 2012
Failure to detect significant association between estrogen receptor-alpha gene polymorphisms and endometriosis in Japanese women
Environmental health and preventive medicine ·doi:10.1007/s12199-011-0259-1

OBJECTIVES: The aim of the study was to test whether estrogen receptor 1 (ESR1) gene polymorphisms are correlated with the risk of the development of endometriosis in Japanese women, as a preliminary study. METHODS: To compare allelic freq…