Zhiqin Bu

ORCID: 0000-0003-2343-3493 · 21 papers in corpus
observational 2026
BMC pregnancy and childbirth ·doi:10.1186/s12884-026-09718-6

PurposeTo provide an updated and comprehensive assessment of euploid embryo rates in polycystic ovarian syndrome (PCOS) women compared with non-PCOS counterparts undergoing preimplantation genetic testing for aneuploidy (PGT-A), and to eval…

observational 2026
Frontiers in endocrinology ·doi:10.3389/fendo.2026.1784899

OBJECTIVE: Several endometrial preparation protocols are available in frozen-thawed embryo (FET) transfer cycles. The aim of this study was to compare the clinical outcomes, obstetrical and neonatal complications between ovulation disorder …

observational 2025
Frontiers in endocrinology ·doi:10.3389/fendo.2025.1574123

BACKGROUND: Endometrial thickness (EMT) has been confirmed to be associated with pregnancy outcomes after in vitro fertilization/intracytoplasmic sperm injection-embryo transfer (IVF/ICSI-ET), but studies on its relationship with neonatal o…

observational 2025
Reproductive biology and endocrinology : RB&E ·doi:10.1186/s12958-025-01445-5

BACKGROUND: AMH is a dependable indicator of ovarian reserve function and assessment of ovarian responsiveness. The relationship between reduced ovarian reserve and pregnancy loss remains poorly understood and requires further investigation…

observational 2025
Frontiers in endocrinology ·doi:10.3389/fendo.2025.1637587

OBJECTIVE: To evaluate the impact of endometrial thickness (EMT) variations on clinical outcomes in two distinct ovarian stimulation protocols: the early-follicular long-acting GnRH agonist protocol and the midluteal short-acting GnRH agoni…

observational 2024
Frontiers in endocrinology ·doi:10.3389/fendo.2024.1416841

PURPOSE: To investigate potential differences in pregnancy outcomes among patients with regular menstruation who underwent frozen-thawed embryo transfer using natural cycle (NC) or hormone replacement therapy (HRT). METHODS: This study ret…

observational 2024
Frontiers in endocrinology ·doi:10.3389/fendo.2024.1411618

BACKGROUND: Second-trimester abortion is a critical issue in infertile women with polycystic ovary syndrome (PCOS) treated with assisted reproductive technology (ART), cervical incompetence (CI) may play a role. Although previous studies ha…

observational 2024
Scientific reports ·doi:10.1038/s41598-024-82783-z

This study aimed to develop and validate a predictive model for failure to collect oocytes in the Patient-Oriented Strategies Encompassing Individualized Oocyte Number (POSEIDON) Groups 3 and 4 during their first in vitro fertilization/intr…

observational 2023
Frontiers in endocrinology ·doi:10.3389/fendo.2023.990971

OBJECTIVE: To assess whether progesterone (P) levels on the trigger day during preimplantation genetic testing (PGT) cycles are associated with embryo quality and pregnancy outcomes in the subsequent first frozen-thawed blastocyst transfer …

observational 2022
Frontiers in medicine ·doi:10.3389/fmed.2022.813781

BACKGROUND: A number of publications have examined the relation between blood group and female infertility including ovarian reserve, recurrent miscarriage, and live birth. However, there is a lack of literature investigating joint mother/f…

observational 2021
Reproductive biology and endocrinology : RB&E ·doi:10.1186/s12958-021-00841-x

BACKGROUND: To investigate whether the endometrial thickness change ratio from the progesterone administration day to the blastocyst transfer day is associated with pregnancy outcomes in a single frozen-thawed euploid blastocyst transfer cy…

observational 2021
Frontiers in endocrinology ·doi:10.3389/fendo.2021.655803

BACKGROUND: Some studies have demonstrated that adenomyosis patients can achieve a comparable pregnancy outcome with women with normal uteruses, while there is no unanimous conclusion at present. METHOD: We recruited 65 adenomyosis patient…

observational 2021
Frontiers in endocrinology ·doi:10.3389/fendo.2021.727339

BACKGROUND: Currently, in China, only women undergoing in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) cycles can donate oocytes to others, but at least 15 oocytes must be kept for their own treatment. Thus, the aim of th…

observational 2021
Frontiers in endocrinology ·doi:10.3389/fendo.2021.706427

BACKGROUND: Progesterone administration before transfer in hormone replacement treatment (HRT) is crucial to pregnancy outcomes in frozen-thawed blastocyst transfer (FET), but the optimal progesterone duration is inconsistent. The objective…

nonrandomized-trial 2020
Frontiers in endocrinology ·doi:10.3389/fendo.2020.00469

Background: Studies have shown that patients with a thin endometrial thickness (EMT < 7 or 8 mm) during IVF/ICSI tend to have adverse pregnancy outcomes, and this has caused much anxiety to both patients and physicians when confronted with …

observational 2020
Reproductive BioMedicine Online ·doi:10.1016/j.rbmo.2019.11.001

RESEARCH QUESTION: Which factors are related to early spontaneous miscarriage in IVF-conceived clinical pregnancies? DESIGN: A total of 21,485 clinical pregnancies were included in the analysis. First, early spontaneous miscarriage rates w…

observational 2019
Medical science monitor : international medical journal of experimental and clinical research ·doi:10.12659/MSM.916447

BACKGROUND Patients with endometriosis (EMs) are routinely advised to take GnRH-a for 3-6 months to improve the internal reproductive environment, but this may not be necessary. MATERIAL AND METHODS This retrospective study examined the eff…

observational 2019
·doi:10.12659/msm.916447

BACKGROUND: Patients with endometriosis (EMs) are routinely advised to take GnRH-a for 3–6 months to improve the internal reproductive environment, but this may not be necessary. MATERIAL/METHODS: This retrospective study examined the effec…

rct 2018
Reproductive health ·doi:10.1186/s12978-018-0639-8

BACKGROUND: Endometriosis is the major cause of progressive pelvic pain and subfertility. Up to 50% of reproductive-age women suffer from pelvic pain. Endometriosis is a classic indication for IVF. Compared with women whose inability to pro…

observational 2014
International journal of clinical and experimental medicine

Many protocols have been proposed to improve IVF outcomes for poor ovarian responders. The aim of this study was to explore the relationship between age, ovarian hyperstimulation protocol and IVF/ICSI outcomes in poor ovarian responder (POR…

observational 2014
PloS one ·doi:10.1371/journal.pone.0100011

In order to explore the relationship between serum progesterone (P) level on the day of human chorionic gonadotrophin (HCG) administration and cumulative live birth rate in patients with different ovarian response during in vitro fertilizat…