Tanaka Y

AimOutside of Japan, recombinant-human chorionic gonadotropin (r-hCG) is widely used for the induction of final follicular maturation and early luteinization in women undergoing ovulation induction; whereas in Japan, urine-derived hCG (u-hC…

For endometrial cancer patients, lymphadenectomy is recommended to exclude rarely metastasized cancer cells. This procedure is performed even in patients with low risk of recurrence despite the risk of complications such as lymphedema. A me…

BackgroundUterine leiomyomas are common uterine tumors, and typical cases of leiomyoma are easily diagnosed by imaging study. However, uterine leiomyomas are often altered by degenerative changes, which can cause difficulty and confusion in…

OBJECTIVE: To determine the effectiveness of a 24/4-day regimen of a low-dose combination drospirenone-ethinylestradiol oral contraceptive in alleviating perimenstrual symptoms among Japanese women with endometriosis. METHODS: The present …

AIM: To assess and compare the uterine volume and endometrium length between women with and without endometriosis, using pelvic magnetic resonance imaging scans. METHODS: In this case-control study, a total of 75 nulligravid women (aged 20-…

Endometriosis is an estrogen-dependent disease. Abnormally biosynthesized estrogens in endometriotic tissues induce the growth of the lesion and worsen endometriosis-associated pelvic pain. Dienogest (DNG), a selective progesterone receptor…

ObjectiveTo demonstrate the effects of the selective G protein-coupled estrogen receptor 1 (GPER) agonist G-1 in human ovarian endometriotic stromal cells (ESCs).DesignExperimental in vitro study.SettingUniversity hospital.Patient(s)A total…

PurposeWe evaluated the role of tumor necrosis factor alpha (TNFα) in rat ovulation and granulosa cell death of ovarian follicles during the periovulatory stage.MethodsImmature rats primed with pregnant mare serum gonadotropin were injected…

CONTEXT: Endometriosis is an estrogen-dependent disease, and estrogen is overproduced by abnormally elevated aromatase in endometriotic tissues. Peroxisome proliferator-activated receptor gamma, coactivator 1α (PGC-1α) is a transcriptional …

Among various long-term complications after previous myomectomy, increasing risk of uterine rupture or dehiscence during pregnancy, and in particular during labor, has been widely recognized. In contrast, the world literature includes no ca…

INTRODUCTION: GPR30 is a seven-transmembrane G protein-coupled estrogen receptor that regulates endometrial cellular responses to estrogen. GPR30 is often highly expressed in cancer cells from aggressive tumors. The aim of this study was to…

UnlabelledObjectivesG protein-coupled receptor 30 (GPR30) is a 7-transmembrane estrogen receptor that functions alongside traditional estrogen receptors to regulate the cellular responses to estrogen. Recent studies suggest that GPR30 expre…

Cancer stem-like cell subpopulations, referred to as "side-population" (SP) cells, have been identified in several tumors based on their ability to efflux the fluorescent dye Hoechst 33342. Although SP cells have been identified in the norm…

We report two cases of perianal endometriosis in which we were greatly assisted by endoanal ultrasonography. Patient 1 was a 43-year-old woman with perianal pain. Endosonography showed a hypoechoic mass in the anterior perianal region witho…

PurposeEndometriosis and endometriotic ovarian cysts are common gynecologic diseases. Excision of the cyst wall by laparotomy or laparoscopy is the standard treatment for endometriotic ovarian cysts. However, some young patients with cysts …

The localization of peptide hormones and serotonin in ovarian mucinous and endometrioid tumors with argyrophil cells was examined by immunohistochemistry. All of the 15 mucinous tumors had argyrophil cells which resemble the enterochromaffi…

Cellular localization of amylase in various ovarian tumors was studied by the immunoperoxidase method using an antibody to human pancreatic amylase. Amylase was present in eight of 34 serous carcinomas and eight of 27 endometrioid carcinoma…

Of 42 endometrioid carcinomas of the ovary examined with Grimelius staining, 19 tumors were found to have argyrophil cells. Argyrophil cells were subgrouped into two types according to the distribution of the argyrophil granules. Type I cel…

The capacity for indole- or catecholamine precursor uptake and decarboxylation of the argyrophil cell adenocarcinoma of the endometrium was examined by fluorescence microscopy, microspectrofluorometry, and biochemical analyses. Both argyrop…