Terakawa N

BACKGROUND: Relugolix is a once-daily, oral, nonpeptide, gonadotropin-releasing hormone receptor antagonist. The aim of this study was to evaluate safety of relugolix over 24 weeks in women with endometriosis-associated pain. METHODS: This…

OBJECTIVE: To evaluate the efficacy and safety of three dose levels of relugolix, a gonadotropin-releasing hormone receptor antagonist, compared with placebo and leuprorelin in women with endometriosis-associated pain. DESIGN: Phase 2, mul…

OBJECTIVE: To investigate the clinical features of patients in Japan with malignant transformation of ovarian endometrioma. PATIENTS: Thirty-three patients diagnosed with ovarian cancer presumably arising from endometrioma were recruited r…

Endometriosis is an estrogen-dependent inflammatory disease. In endometriotic tissues, a high-estrogen environment associated with up-regulation of the aromatase gene has been well documented. There is accumulating evidence supporting a con…

OBJECTIVE: The objective of this study was to determine the genes that may be associated with malignant transformation of ovarian endometrioma. METHODS: Endometriotic epithelial cells were isolated from tissues derived from chocolate cyst …

AIMS: We investigated the potential of gonadotropin-releasing hormone (GnRH) agonists and GnRH antagonists to inhibit cell proliferation in endometriotic and endometrial stromal cells. METHODS: Twenty patients with ovarian endometriomas an…

The nuclear factor kappaB (NF-kappaB) is a ubiquitously expressed transcription factor playing vital roles in innate immunity and other processes involving cellular survival, proliferation, and differentiation. This review highlights the im…

Apoptosis is a distinctive form of programmed cell death resulting in the efficient elimination of cells without eliciting an inflammatory response. Endometriosis is characterized by the presence of endometrial cells with capacity to avoid …

OBJECTIVE: To search for the demethylated cytosine-phosphate-guanine (CpG) islands within the aromatase gene in stromal cells derived from endometriotic chocolate cysts. DESIGN: Prospective study. SETTING: Department of Obstetrics and Gyn…

Lipopolysaccharide-enhanced cyclooxygenase 2 (COX-2) expression and prostaglandin E2 (PGE2) production were compared in endometriotic stromal cells (ESCs) and eutopic endometrial stromal cells. Lipopolysaccharide promotes the proliferation …

AIM: To investigate the safety and efficacy of 52 weeks of dienogest treatment in patients with endometriosis. METHODS: One hundred and thirty-five patients with endometriosis received 2 mg of dienogest orally each day for 52 weeks. Advers…

Endometriosis causes pelvic pain and infertility in women of reproductive age. We explored TNFalpha-induced specific signaling pathways and gene expressions in endometriotic stromal cells (ESCs). Based on the data of the pathway specific cD…

BACKGROUND: Decreased susceptibility of endometrial tissue to apoptosis may contribute to the pathogenesis of endometriosis. We investigate the role of survivin in the pathophysiology of endometriosis through the ability of ectopic and euto…

PROBLEM: We previously reported that lipopolysaccharide (LPS)-promoted endometriotic stromal cell (ESC) proliferation by inducing TNFalpha production. The aim of this study was to investigate the efficacy of TNFalpha gene silencing on LPS-t…

OBJECTIVE: To compare the efficacy and safety of dienogest (DNG) with intranasal buserelin acetate (BA) in patients with endometriosis. DESIGN: Phase III, randomized, double-blind, multicenter, controlled trial. SETTING: Twenty-four study…

OBJECTIVE: To determine whether high levels of interleukin (IL)-10 can attenuate the production of tumor necrosis factor (TNF)-alpha-induced proinflammatory cytokines in endometriotic stromal cells. DESIGN: Prospective study. SETTING: Dep…

OBJECTIVE: To evaluate the efficacy of a low-dose oral contraceptive pill (OCP) for patients with dysmenorrhea associated with endometriosis. DESIGN: A double-blind, randomized, placebo-controlled trial. SETTINGS: Clinical trial sites in …

Clear cell carcinoma (CCC) accounts for 4% to 12% of epithelial ovarian cancer in Western countries and, for some unknown reasons, it comprises more than 20% of such cancers in Japan. CCC shows unique clinical features such as a high incide…

OBJECTIVE: To determine whether serum interleukin (IL)-8 concentration can be measured in patients with ovarian endometrioma and whether this measurement is a useful tool in diagnosing this disease. DESIGN: A controlled clinical study and …

Ovarian surface epithelial cells (OSEs) are considered to be the common source of endometrioma and epithelial ovarian cancer. The present study reveals that keratinocyte growth factor receptor (KGFR) messenger RNA was expressed in OSEs of e…

OBJECTIVE: To examine the molecular basis of aromatase expression in stromal cell culture from endometriotic chocolate cysts. DESIGN: Prospective study. SETTING: Department of Obstetrics and Gynecology and Department of Biosignaling, Tott…

Apoptosis plays a critical role in maintaining tissue homeostasis and represents a normal function to eliminate excess or dysfunctional cells. Accumulated evidence suggest that apoptosis helps to maintain cellular homeostasis during the men…

OBJECTIVE: To evaluate the influence of peroxisome proliferator-activated receptor-gamma (PPAR gamma) ligand (pioglitazone) on tumor necrosis factor-alpha (TNF-alpha)-induced interleukin-8 (IL-8) expression in endometriotic stromal cells (E…

BACKGROUND: The survival of endometriotic cells in the ectopic site has been investigated from the aspect of susceptibility of endometriotic tissues to apoptosis. In order to investigate the nature of abnormal survival of endometriotic cell…