Byung Chul Jee

Clinicians need to be aware of the risk factors for spontaneous LNG-IUS expulsion because this can lead to a discontinuation of its use.

BACKGROUND/AIMS: To compare the effectiveness of highly purified hMG (Menopur) with recombinant FSH (Gonal-F) in IVF/ICSI patients who underwent ovarian hyperstimulation with pituitary suppression. METHODS: A literature search of the National Library of Medicine and the National Institutes of Health (PubMed), Medline and Cochrane Controlled Trials Register was performed using the key words 'highly purified hMG' and 'recombinant FSH.' Only prospective randomized controlled trials were included wh

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 to evaluate whether serum levels of sCD163 and interleukin-6 (IL-6) could be possible markers for ovarian endometriomas discriminating adnexal benign cystic tumors. METHODS: The concentrations of sCD163 and IL-6 were determined using commercial ELISA kits in

Considerable disagreement exists regarding whether endometrial polyps should be removed before attempting natural pregnancy and before pregnancy via intrauterine insemination (IUI) or in vitro fertilization (IVF). Through a literature review, we obtained information on the impact of endometrial polyps and polypectomy on fertility outcomes. Several observational studies have suggested that women with unexplained infertility may benefit from endometrial polypectomy for a future natural pregnancy.

STUDY QUESTION: Are mRNAs for specific aquaporins (AQPs) expressed in human luteinized granulosa cells (GCs) and are their expression levels correlated with in vitro fertilization (IVF) outcomes? SUMMARY ANSWER: The mRNAs of AQP1-7, 9, 11, and 12 were expressed in human luteinized GCs; the level of AQP1 mRNA was negatively associated with retrieved oocyte number and the level of AQP7 mRNA was positively associated with fertilization rate. WHAT IS KNOWN ALREADY: mRNAs of AQP1-4 and AQP9 have been

This study was designed to investigate the role of nitric oxide (NO) on the apoptosis of human luteinized granulosa cells and its possible pathways. Granulosa cell suspensions were incubated for 48 h after adding NO donor (S-nitroso-N-acetyl-penicillamine, SNAP) and NO synthase inhibitor (nitro-L-arginine methyl ester, L-NAME) at different concentrations. Apoptosis was examined using a terminal deoxynucleotide-transferase-mediated dUTP-biotin nick end labeling method in 70 patients, and immunocy

AIM: To evaluate various adverse symptoms during short-term use of ulipristal acetate in women with uterine myomas (n = 90), adenomyosis (n = 3) or both (n = 7). METHODS: One hundred premenopausal women who received ulipristal acetate for 4-12 weeks during 2016 to 2017 were selected. The medical records were reviewed and the following information was collected; adverse symptoms during medication, presence of menorrhagia or menstrual cramps, blood hemoglobin and liver function test. Adverse sympt

BACKGROUND/AIMS: The aim of this meta-analysis was to determine whether frozen embryo transfer (ET) increases ectopic pregnancy (EP) rate compared with fresh ET. METHODS: A meta-analysis was performed of data from seven comparative studies including 13,059 pregnancies that resulted from nondonor in vitro fertilization cycles. RESULTS: The EP rate was 2.31% (49/2,125 pregnancies) for frozen ET and 1.48% (162/10,934 pregnancies) for fresh ET. These rates were statistically not different when asses