Dong-Yun Lee

STUDY SUBJECT: To investigate the impact of preoperative hormonal medication, including combined oral contraceptives or dienogest, on operative findings in ovarian endometrioma surgery. DESIGN: A single-center, retrospective study. SETTIN…

OBJECTIVE: Recent studies have suggested that endometriosis could be the result of excessive activation of signal transducer and activator of transcription 3 (STAT3), which is associated with the regulation of essential cellular mechanisms …

The NOD-like receptor pyrin domain containing 3 (NLRP3) inflammasome is a cytosolic multi-protein complex that induces inflammation and is known to be regulated negatively by autophagy. Previous studies reported an abnormal induction of aut…

Endoplasmic reticulum (ER) stress serves as a key modulator of the inflammatory response by controlling nuclear factor-kappaB (NF-κB) signaling. Previous studies from our laboratory have reported an abnormal induction of ER stress linked to…

ObjectiveThe aim of this study was to compare long-term use of combined oral contraceptive (COC) after gonadotropin-releasing hormone (GnRH) agonist plus add-back therapy with dienogest (DNG) treatment as medical treatments after surgery fo…

Dienogest, a specific progesterone receptor agonist, is used in the treatment of endometriosis. However, it is still unclear as to the mechanisms of therapeutic effects on endometriosis. Our recent study showed that endometriosis may be the…

Endoplasmic reticulum (ER) stress is known to reduce invasiveness in some cancer cells by inhibiting the AKT/mTOR pathway. A previous study from our laboratory suggested that ER stress is promoted by progesterone in human endometrial cells,…

Endometriosis is one of the most common diseases in reproductive ages, and it affects patients' quality of life and fertility. However, few Korean guidelines are available for the evaluation and management of endometriosis. Korean Society o…

This study aimed to assess whether dienogest (DNG) is also effective in patients with recurrent endometriosis based on multicenter data of 121 women who were clinically diagnosed as having recurrent endometriosis and treated for more than 2…

ObjectiveThis study was conducted to evaluate the effects of long-term postoperative dienogest (DNG) use for the treatment of endometriosis on bone mineral density (BMD).Study designSixty reproductive-aged women who underwent conservative s…

Dienogest (DNG) is a progestin with highly selective progesterone activity and minimal androgenic activity and is helpful in reducing endometriosis-related pain. This study assessed the long-term efficacy and safety and recurrence rate of e…

OBJECTIVE: To compare the efficacy of different add-back regimens on hypoestrogenic symptoms during postoperative gonadotropin-releasing hormone (GnRH) agonist treatment in endometriosis patients. METHODS: This prospective cohort study incl…

PurposeThis study was performed to compare the efficacy and tolerability of GnRH agonist with add-back therapy versus dienogest treatment for preventing pelvic pain recurrence after laparoscopic surgery for endometriosis.MethodsSixty-four r…

Post-operative cyclic oral contraceptive use after gonadotrophin-releasing hormone agonist treatment effectively prevents endometrioma recurrence

ObjectiveAs endometrioma frequently recurs after conservative surgery, long-term postoperative medical treatment for the prevention of recurrence is necessary. However, it has not been elucidated whether long-term postoperative medical trea…

Study objectiveYoung age is a possible risk factor of endometriosis recurrence after surgery. However, the efficacy of postoperative medical treatment has not been well addressed in adolescents. The purpose of this study was to evaluate whe…

ObjectiveTo elucidate the therapeutic mechanisms of progestin and the effects of progesterone and progestin (dienogest) on autophagy induction and regulation in endometriotic cells, specifically the effects of progesterone and dienogest on …

Concerns for negative effects of oral contraceptives (OCs) on bone mineral density (BMD) in long-term users have been raised, since OCs suppress the hypothalamic-pituitary-ovarian axis. However, there have been still limited data regarding …

Study objectiveTo evaluate the clinical characteristics of endometrioma in adolescent women compared to women of other age groups.DesignCross-sectional study.SettingA university hospital.ParticipantsThree-hundred seventy-six women.Intervent…

We evaluated the laterality of primary endometrioma and characteristics of patients according to the laterality of recurrent endometrioma in 140 women with recurrent endometrioma after conservative surgery. Histologically confirmed recurren…

A few studies have investigated the effects of laparoscopic cystectomy for endometrioma on ovarian reserve using serum anti-Müllerian hormone (AMH) levels and have shown inconsistent results. This prospective study was performed to estimate…

Currently, no standard post-operative medical therapy has been shown to be superior in reducing the recurrence of endometrioma. This retrospective study was performed to evaluate the efficacy of post-operative cyclic oral contraceptive (OC)…

AIMS: To characterize the reproductive health of urban South Korean women of reproductive age. METHODS: A cross-sectional online survey on menstrual patterns, sexual behavior, utilization of contraception, and perception of gynecological d…

ObjectiveTo evaluate the efficacy and tolerability of a low-dose estrogen-only regimen as a short-term add-back therapy during post-operative GnRH agonist (GnRHa) treatment of patients with endometriosis.Study designRetrospective cohort stu…