Harada T

OBJECTIVE: To study the impact of estetrol (E4), a novel native estrogen with selective tissue activity, on endometriosis-associated pelvic pain (EAPP) and global impressions of endometriosis pain. DESIGN: Multicenter, randomized, open-lab…

BACKGROUND: Endometriosis is a complex gynaecological disorder that affects 10%-15% of reproductive-age women and is characterized by chronic inflammation, pelvic pain, and infertility. Although mitochondrial dysfunction is implicated in en…

PURPOSE: To clarify the efficacy and safety of the estetrol 15 mg/drospirenone 3 mg combination among Japanese women with adenomyosis by post hoc analyses of a previous randomized clinical study. METHODS: Post hoc analyses were performed u…

We aimed to generate immortalized stromal cell lines from the ovarian and fallopian tube tissues of a single patient using Sendai virus (SeV) vectors and identify candidate stromal genes involved in ovarian carcinogenesis. Tissues were coll…

BACKGROUND: Endometriosis presents as endometrial tissue growths outside the uterine cavity with its major symptoms including dysmenorrhea and infertility. Progestin preparations, such as dienogest, are the first-line therapy for endometrio…

OBJECTIVE: To evaluate the effects of a P2X4 receptor (P2X4R)-specific antagonist on murine endometriotic-like lesions and human endometriotic stromal cells. DESIGN: Experimental study using an in vivo mouse endometriosis model and in vitr…

PURPOSE: Neoangiogenesis is necessary for adhesion and invasion of endometriotic lesions. We hypothesize that by blocking angiogenetic pathways we can suppress endometriosis. Oral contraceptive pills (OCs) are routinely used in endometriosi…

BACKGROUND: Endometriosis-related pain encompassing dysmenorrhea, dyspareunia, and chronic pelvic pain, reduces the quality of life in premenopausal women. Although treatment options for endometriosis alleviate this pain, approximately one-…

OBJECTIVE: To evaluate the efficacy and safety of 24-week cyclic administration of estetrol (E4) (15 mg)/drospirenone (DRSP) (3 mg) in Japanese patients with endometriosis. DESIGN: A 24-week, multicenter, randomized, double-blind, placebo-…

Venous thromboembolism is a serious safety concern in women using combined oral contraceptives; ethinyl estradiol (EE) is widely used as an estrogen. Estetrol (E4) is a native estrogen with selective tissue activity and exclusively produced…

OBJECTIVE: To identify cytokines or extracellular matrix components that contribute to adhesion to, and invasion of, the peritoneum, proximal to lesions in the early phase of endometriosis. DESIGN: Laboratory-based study. SETTING: Univers…

PROBLEM: What is the effect of SR-16234 (SR), a selective estrogen receptor (ER) modulator, on human endometriotic stromal cells (ESCs)? METHOD OF STUDY: Endometriotic tissues were obtained from 21 patients undergoing laparoscopic surgery …

PURPOSE: Neoangiogenesis is necessary for adhesion and invasiveness of endometriotic lesions in women affected by endometriosis. Vascular endothelial growth factor (VEGF) is one of the main components of angiogenesis and is part of the majo…

Anterior, lateral, and posterior cutaneous nerve entrapment syndromes have been proposed as etiologies of trunk pain. However, while these syndromes are analogous, comprehensive reports contrasting the three subtypes are lacking. We therefo…

OBJECTIVES: Approximately 17-44% of women diagnosed with endometriosis have ovarian endometriomas (cysts). Although ovarian endometriomas may adversely affect quality of life and work performance, the associations among patient characterist…

BACKGROUND: A previous study investigated the effect of adenomyosis on perinatal outcomes. Some studies have reported varying effect of adenomyosis on pregnancy outcomes in some patients and dependence on the degree and subtype of uterine l…

OBJECTIVE: Adenomyosis is a gynecologic disorder characterized by symptoms of dysmenorrhea, abnormal uterine bleeding, and infertility. This study aimed to analyze the expression profiles of key inflammatory cytokines in the endometrium wit…

AIM: This study aimed to compare introduced robotic-assisted hysterectomy (RAH) and skilled total laparoscopic hysterectomy (TLH) for the treatment of benign gynecological diseases. METHODS: Patients who underwent RAH or TLH by two surgeon…

PURPOSE: To collect real-world safety and clinical outcome data on the levonorgestrel-releasing intrauterine system (LNG-IUS) for functional/organic heavy menstrual bleeding (HMB) and dysmenorrhoea in Japanese women (J-MIRAI). MATERIALS AN…

More than 10 years following the publication of "The General Rules for Clinical Management of Endometriosis: The second edition" in January 2010, the long-awaited third edition has arrived. The second edition represents the bible for endome…

Uterine adenomyosis is an estrogen-dependent tumor and one of the most common benign diseases in sexually mature women. The frequency of endometrial cancer associated with adenomyosis has been reported to be 18%–66%. On the other hand, endo…

IntroductionThe present study collected 1-year follow-up patient-reported outcome data from Japanese women with dysmenorrhea and/or heavy menstrual bleeding (HMB) who underwent insertion of the levonorgestrel-releasing intrauterine system (…

OBJECTIVES: We collected real-world data on the safety and clinical outcomes of the levonorgestrel-releasing intrauterine system (LNG-IUS) for heavy menstrual bleeding and dysmenorrhea. STUDY DESIGN: This was a prospective, multicenter, si…

OBJECTIVE: To evaluate the efficacy and safety of 40-mg relugolix (REL) compared with those of leuprorelin (LEU) in women with endometriosis-associated pain. DESIGN: Phase 3, multicenter, randomized, double-blind, double-dummy, active-cont…