Journal of Obstetrics and Gynaecology Research

AIM: Androgens have been reported to be associated with female fertility. The mean serum testosterone concentration in the patients with endometriosis was reported to be significantly lower than that without endometriosis. Our study was des…

AIM: We aimed to describe the clinical presentation, operative or medical management, and postoperative recurrence of bladder endometriosis (BE). METHODS: We conducted a national survey to investigate BE cases from 2006 to 2016 in Japan. H…

AIM: The purpose of this study was to evaluate the current state and clinical characteristics of spontaneous hemoperitoneum in pregnancy (SHiP) in Japan by performing a comprehensive survey. METHODS: We reviewed data on pregnant women who …

AIMS: The most common symptoms of adenomyosis include heavy menstrual bleeding and dysmenorrhea. A variety of medical or surgical techniques are utilized for the treatment of adenomyosis, but there are currently no specific treatment guidel…

AIM: To study (1) ovarian and endometrial damage caused by the hyperglycemia and (2) the effects of dichloroacetic acid (DCA) on follicular reserve and endometrial damage in streptozocin induced diabetic rats. METHODS: This study consisted…

AIMS: The purpose of this study is to first investigate the correlation between image features and histological findings and the clinical severity of adenomyosis; second, search for imaging features to assess the type and locoregional exten…

AIM: To share our experiences of resuming the treatments for gynecologic patients after lifting the lockdown in a hotspot area for the Coronavirus Disease 2019 (COVID-19) pandemic. METHODS: The triage process used to resume medical activit…

AIM: To evaluate the frequency of complications and factors associated with the recurrence of endometriosis in women with deep infiltrating endometriosis (DIE) undergoing surgical treatment. METHODS: A retrospective observational cohort st…

AIM: This study aimed to identify the risk factors for vaginal cuff infection after laparoscopic hysterectomy for benign gynecological diseases. METHODS: We conducted a retrospective cohort study among 1559 Japanese women who underwent tot…

Adenomyosis is a common disease that affects many premenopausal women. Two patients with adenomyosis, aged 51 and 42 years, presented with dysmenorrhea and increased menstrual volume. They refused laparoscopy or laparotomy surgery and were …

AIM: Typical antipsychotics (TAPs) are commonly used to treat schizophrenia and bipolar disorder. However, extrapyramidal disorders, hyperprolactinemia, and reproductive dysfunctions have been observed in women during the use of TAPs. For t…

AIM: Endometriosis is an estrogen-dependent chronic inflammatory condition which causes pain, infertility, and predisposition for ovarian cancer. Endometriosis generates a unique microenvironment for survivability of endometriotic lesions w…

We present a case of hemorrhagic shock occurred during dienogest therapy for uterine adenomyosis which necessitated an emergency hysterectomy. The patient was a 45-year-old woman with adenomyosis. Magnetic resonance imaging showed type I ad…

Accessory ovary is a type of ovarian dysplasia, which is often defined as an ovarian tissue placed near and directly connected to the normal ovary or one of ovarian ligaments. It is often asymptomatic, mostly is found or diagnosed at laparo…

AIM: To investigate the accuracy and clinical value of an adhesion scoring system using transvaginal ultrasonography for endometriotic adhesion. METHODS: In this prospective observational study, we included 131 patients with endometriosis …

AIM: Endometriosis mostly affects the ovary but can also be present outside of the ovary including the pelvic peritoneum, intestine, urinary tract and lung. In case of ovarian endometriotic cyst, an increased risk of ovarian cancer, especia…

The aim of this publication is to disseminate the clinical practice guidelines for the treatment of intestinal, bladder/ureteral, thoracic and umbilical endometriosis, already published in Japanese, to non-Japanese speakers. For developing …

AIM: To describe the characteristics, management and outcomes of a cohort of young people with dysmenorrhea presenting to a tertiary adolescent gynecology service, managed primarily with medical interventions. METHODS: A retrospective coho…

AIM: To evaluate whether epigallocatechin-3-gallate acts on endometriosis mouse, and changes the status of DNA methylation of E-cadherin promoter region. METHODS: According to our previous research, the tracing nude mouse model of endometr…

AIM: Tokishakuyakusan (TSS) is representative of popular Kampo medicines for Japanese women to treat dysmenorrhea, irregular menstruation and menopause. Current hormonal treatments and low-dose oral contraceptives (OCs) used as a first-choi…

AIM: This study aimed to investigate the effects of endometrial stromal cells (ESC)-derived interleukin (IL)-6 and monocyte chemoattractant protein (MCP)-1 on macrophage polarization in endometriosis. METHODS: Macrophage polarization was m…

AIM: Postoperative pyrexia is generally a physiological response to surgery. It is a common problem and burden for both patients and surgeons. This study aimed to investigate the incidence and duration of physiological postoperative pyrexia…

AIM: To compare the expression of estrogen receptor α (ERα), Bcl-2 and NF-κB P65 in endometrial polyps from patients with and without endometriosis. METHODS: Immunohistochemistry was used to characterize the expression of ERα, Bcl-2 and NF…

AIM: V-set and immunoglobulin domain-containing 4 (VSIG4) is a potent negative regulator of T-cell responses and is suggested to regulate antitumor immunity. This study investigates whether VSIG4 is significantly expressed in endometriosis …

AIM: To study the involvement and interrelationship of epithelial cell adhesion molecule (EpCAM) and epithelial-mesenchymal transition (EMT) in endometriosis. METHODS: Samples from 114 patients undergoing endometrial biopsy or operation fo…