Byung Chul Jee

The purpose of this study was to investigate whether sperm selection by hyaluronic acid (HA) binding could improve fertilization rate and embryo quality in intracytoplasmic sperm injection (ICSI) cycles. Two hundred nineteen oocytes obtaine…

OBJECTIVE: This study was performed to assess the prognostic value of serum hCG, progesterone, and inhibin A levels measured at 11 days post-ET for predicting pregnancy outcome in women participating in IVF. METHODS: Between May 2005 and A…

OBJECTIVE: To investigate the value of stimulated intrauterine insemination (IUI) in women with unilateral tubal occlusion. METHODS: Superovulation and IUI was performed during 2003-2010 and the medical records were reviewed retrospectivel…

OBJECTIVE: During stimulated IVF cycles, up to 15% of oocytes are recovered as immature. The purpose of this study was to investigate the trend of oocyte maturity in repeated ovarian stimulation for IVF. METHODS: One hundred forty-eight pa…

OBJECTIVE: There are limited data regarding the significance of elevated serum CA-125 level during IUI cycles, even though it is used widely during the initial evaluation of infertile patients. The aim of this study was to investigate the p…

PURPOSE: To investigate the direct relationship between the follicular fluid (FF) level of soluble human leukocyte antigen G (HLA-G) and fertilizability of the corresponding oocyte as well as the morphological quality of the corresponding e…

Objective: The several strategies for unexplained thin endometrium are under debate. We evaluated the effect of concomitant administration of vaginal sildenafil and oral estrogen in women with a thin endometrium undergoing in vitro fertiliz…

This study was performed to analyze retrospectively outcomes of stimulated in vitro fertilization (IVF) cycles where the gonadotropin-releasing hormone (GnRH) antagonist was omitted on ovulation triggering day. A total of 92 consecutive IVF…

OBJECTIVE: To evaluate the ovarian reserve changes after laparoscopic cystectomy, we prospectively evaluated pre- and postoperative serum anti-Müllerian hormone (AMH) level, and ovarian volumes. DESIGN: Prospective longitudinal study. SET…

OBJECTIVE: To investigate temporal and spatial relationships of vascular endothelial growth factor (VEGF)-A and its receptor (VEGFR-1) expression in a luteal endometrium obtained from patients with repeated IVF failure. DESIGN: Immunohisto…

OBJECTIVE: To analyze the influence of postoperative GnRH agonist treatment on disease recurrence after conservative laparoscopic surgery for ovarian endometriomas according to duration of the treatment. DESIGN: Retrospective cohort study.…

BACKGROUND: CD163 is a hemoglobin scavenger receptor exclusively expressed in the monocyte-macrophage system and its soluble form (sCD163) has not yet been studied as a serum marker in women with endometriosis. The purpose of this study was…

PROBLEM: The aim of this study was to investigate the relationship between the polymorphisms of the tumor necrosis factor-alpha (TNT-alpha) and TNF receptor (TNFR) genes and serum levels of TNF-alpha and its soluble receptor (sTNFR) in Kore…

The aim of present study was to evaluate the relationship between endometriosis and polymorphisms in the endostatin and vascular endothelial growth factor (VEGF) genes, and their levels in serum in a Korean population. Serum endostatin leve…

OBJECTIVE: To describe a case of suprapubic dermoid cyst that had been mistaken for cutaneous endometriosis. DESIGN: Case report. SETTING: Department of Obstetrics and Gynecology, Seoul National University Hospital, Korea. PATIENT(S): A …

The aim of the present study was to evaluate the clinical efficacy of half-dose (50 mug) and further reduced dose (33 or 25 mug) gonadotropin-releasing hormone agonist (GnRH-a; triptorelin) long protocols for multifollicular ovarian stimula…

Objective: To explore the association of the CYP 1A1 gene polymorphism with the risk of endometriosis in a Korean population. Design: Case-control study Methods: Two-hundred fifty two Korean women with surgically or histologically diagnosed…

Objective : To explore the association of p53 codon 72 polymorphism with endometriosis. Methods : Two hundred seventy-one women with surgically or histologically diagnosed edometriosis of stage I-IV, and 219 patients with no evidence of end…

PURPOSE: Our purpose was to verify whether the blood flow impedance of the ovarian stromal artery in transvaginal color Doppler ultrasonography can predict the in vitro fertilization and embryo transfer (IVF-ET) outcomes. METHODS: Transvag…

PURPOSE: To investigate the prognostic significance of apoptosis in granulosa cells recovered from patients participating in IVF-ET. METHODS: Seventy-three women underwent ovarian hyperstimulation for IVF and embryo transfer. After follicl…