Masami Hayashi

No ORCID on file · 9 papers in corpus · active 2012-2020

Study types

  • article 8
  • paratext 1

Condition tags

  • endometriosis 9
  • infertility 3
  • endometrioma 2
article 2020
The differential expression of miRNAs between ovarian endometrioma and endometriosis-associated ovarian cancer
Journal of ovarian research ·doi:10.1186/s13048-020-00652-5

BACKGROUND: MicroRNAs (miRNAs) have been implicated to play a vital role in development, differentiation, cell proliferation and apoptosis. However, which miRNAs are actually associated with endometriosis-associated ovarian cancer remains c…

article 2016
Analysis of the methylation rate of theandrogen receptor promoter region ingranulosa cells in moderate to severeendometriosis patients undergoing controlledovarian hyperstimulation

Background: To investigate the effect of the methylation rate of the androgen receptor (AR) promoter region in granulosa cells in patients with endometriosisinduced infertility. Method: Eighteen patients with moderate to severe endometriosi…

article 2016
Analyzing the risk factors for a diminished oocyte retrieval rate under controlled ovarian stimulation
Reproductive medicine and biology ·doi:10.1002/rmb2.12004

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 …

article 2015
Estradiol-mediated hepatocyte growth factor is involved in the implantation of endometriotic cells via the mesothelial-to-mesenchymal transition in the peritoneum
American journal of physiology. Endocrinology and metabolism ·doi:10.1152/ajpendo.00573.2014

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…

paratext 2015
The detection of apoptosis using BimEL staining in primordial and growing follicles in endometriosis patients.
·doi:10.1371/journal.pone.0115618.g001

Representative examples of sequential immunohistochemical sections stained with hematoxylin and eosin (b and e), anti-BimEL Abs (a, d, and g) and anti-FSH receptor Ab (c and f). The granulosa cells of each follicle were scored “negative” if…

article 2015
The effect of moderate to severe endometriosis on expression of growth differentiation factor‐9 mRNA in human granulosa cells under controlled ovarian hyperstimulation
Reproductive medicine and biology ·doi:10.1007/s12522-015-0208-6

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…

article 2014
A Low-Testosterone State Associated with Endometrioma Leads to the Apoptosis of Granulosa Cells
PloS one ·doi:10.1371/journal.pone.0115618

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…

article 2014
Decorin induced by progesterone plays a crucial role in suppressing endometriosis
The Journal of endocrinology ·doi:10.1530/joe-14-0393

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…

article 2012
Expression and Epigenetic Change of the AR and FSHR Genes in the Granulosa Cells of Endometriosis Patients
·doi:10.4137/geg.s9877

Background Endometriosis is one of the most common gynecological diseases associated with infertility. Endometriosis may affect the androgen receptor (AR) mRNA expression in human granulosa cells and the methylation of the promoter region o…