Hayashi A

Genital herpes, caused by herpes simplex virus (HSV) types 1 and 2, is a common sexually transmitted disease typically presenting with genital lesions and discomfort. However, a cervical mass without vulvar lesions is a rare manifestation o…

PurposeTo analyze the usefulness of intravaginal insemination (IVI) for the infertility treatment in couples with sexual dysfunction before applying assisted reproductive technology (ART).MethodsAmong 208 couples who presented sexual dysfun…

BackgroundIn recent years, uterus transplantation (UTx) has been applied as the treatment for patients with uterine factor infertility worldwide. Thus, the clinical application of UTx in Japan should be considered through both the history o…

Aim: To investigate which risk factors contribute to a lower oocyte retrieval ratio in women who are receiving controlled ovarian hyperstimulation. Methods: The authors retrospectively analyzed 329 in vitro fertilization (IVF) cycles under …

AT-rich interactive domain 1A (ARID1A) is a subunit of the Switch/Sucrose non-fermentable (SWI/SNF) chromatin remodeling complex. Recently, genome-wide whole exome sequencing revealed frequent mutations of ARID1A in hepatocellular carcinoma…

The pathogenesis of endometriosis, a chronic painful gynecological disease characterized by the presence of endometrial tissue located outside of the uterus and often adhering to the peritoneum, is known to be estrogen dependent. However, t…

Purpose: To investigate the effect of moderate to severe endometriosis on mRNA expression of growth differentiation factor-9 (GDF-9) in the granulosa cells of mature follicles. Methods: Follicular fluid (FF) was obtained from 13 patients wi…

Although endometriosis is suspected to be a cause of premature ovarian insufficiency (POI), the mechanism(s) underlying this process have not been elucidated. Recently, androgens were shown to promote oocyte maturation and to play a role in…

PURPOSE: We performed TaqMan genotyping assays of anti-Mullerian hormone (AMH) and anti-Mullerian hormone receptor type II (AMHRII) single nucleotide polymorphisms (SNPs) in order to investigate how their frequency and distribution affect i…

Dienogest, a synthetic progestin, has been shown to be effective against endometriosis, although it is still unclear as to how it affects the ectopic endometrial cells. Decorin has been shown to be a powerful endogenous tumor repressor acti…

BackgroundAcute lower gastrointestinal hemorrhage originating from the appendix is rare and often intractable, because it is almost impossible to approach the bleeding point by endoscopy. We herein describe the first case of bleeding from t…

PurposeExamination of the mitochondrial mRNA expression in granulosa cells from an unspecified population of infertile patients to evaluate whether recombinant follicle stimulating hormone (recFSH) is more effective in producing higher qual…

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…

BACKGROUND: The resistance of endometriotic tissue to progesterone can be explained by alterations in the distribution of progesterone receptor (PR) and estrogen receptor (ER) isoforms. The aims of this study were to examine the expressions…

Inflammation in the ovary, including ovulation and pelvic inflammatory disease, has been proposed to play a role in the pathogenesis of ovarian cancer. Endometriotic lesions trigger a local inflammatory reaction and have been reported to be…

OBJECTIVE: To evaluate how endometriosis affects the expression of estrogen and progesterone receptors mRNA in granulosa cells. DESIGN: Prospective study. SETTING: IVF-ET program at Osaka Medical College. PATIENT(S): Eighteen patients wi…

ObjectiveTo evaluate survivin gene expression in granulosa cells from infertile patients and examine the relationship between survivin gene expression and infertile clinical background.DesignProspective study.SettingIVF-ET program at Osaka …