Hiroshi Kobayashi

No ORCID on file · 130 papers in corpus · active 1987-2026

Study types

  • article 67
  • review 54
  • other 8
  • book-chapter 1

Condition tags

  • endometriosis 114
  • endometrioma 28
  • adenomyosis 27
  • infertility 16
  • dysmenorrhea 7
  • die_deep_infiltrating 4
  • chronic_pelvic_pain 3
article 2019
Journal of Obstetrics and Gynaecology Research ·doi:10.1111/jog.14093

AIM: Expression of CD44 variant isoforms (CD44v) promotes the synthesis of reduced glutathione and contributes to reactive oxygen species defense through up-regulation of the intracellular antioxidant. The aim of the study was to investigat…

article 2019
Case reports in oncology ·doi:10.1159/000496178

BACKGROUND AND OBJECTIVE: Atypical endometriosis is reported to possess a precancerous potential attributed to premalignant changes characterized by cytological atypia and architecture proliferation. Although the coexistence of atypical end…

other 2019
Journal of ovarian research ·doi:10.1186/s13048-019-0497-1

BACKGROUND: Common cancerous histological types associated with endometriosis are clear cell carcinoma (CCC) and endometrioid carcinoma (EC). CCC is regarded as an aggressive, chemoresistant histological subtype. Magnetic resonance imaging …

article 2019
Molecular and clinical oncology ·doi:10.3892/mco.2019.1889

Endometriosis is a precancerous condition for endometriosis‑associated ovarian cancer (EAOC). In the present study, conventional magnetic resonance imaging (MRI) and MR relaxometry were used to examine a case of clear cell carcinoma that ar…

review 2019
Gynecologic and obstetric investigation ·doi:10.1159/000502822

Adenomyosis is a common gynecologic disorder defined by the presence of endometrial glands and stroma within the uterine myometrium. This review focusses on: (1) current understanding of cellular and molecular mechanisms of adenomyosis-rela…

article 2019
·doi:10.3892/wasj.2019.12

The aim of this review article was to assess the potential link between somatic driver mutations in endometriosis and the pathogenesis of fibrotic processes in other organ systems. This review presents the results of a PubMed literature sea…

article 2019
Scientific reports ·doi:10.1038/s41598-019-54096-z

We aimed to retrospectively analyze the risk factors of a continuous dienogest (DNG) therapy for serious unpredictable bleeding in patients with symptomatic adenomyosis. This is a retrospective study based on data extracted from medical rec…

article 2018
Case reports in obstetrics and gynecology ·doi:10.1155/2018/2139595

We herein report a case of clear cell carcinoma arising from endometriosis in the groin in a 53‐year‐old woman. The findings of MRI and FDG/PET‐CT indicated a malignant tumor, and surgical biopsy confirmed adenocarcinoma of the female genit…

article 2018
Pathology, research and practice ·doi:10.1016/j.prp.2018.12.017
article 2018
Oncology letters ·doi:10.3892/ol.2018.9242

The present study aimed to evaluate the levels of oxidative stress and antioxidant markers in benign endometrioma (OE) and its malignant transformation [endometriosis‑associated ovarian cancer (EAOC)] by measuring 8‑hydroxy‑2‑deoxyguanosine…

article 2018
Experimental and therapeutic medicine ·doi:10.3892/etm.2018.5779

The aim of the present single-center retrospective study was to investigate the discrimination of malignant transformation from ovarian endometrioma (OE) using a near‑infrared approach ex vivo. Cystic fluid samples were collected from patie…

review 2018
Oncology reports ·doi:10.3892/or.2018.6946

In the present study, we summarize the role of the shared and independent (epi)genetic background between endometrioid carcinoma (EC) and clear cell carcinoma (CCC), two histological subtypes of endometriosis-associated ovarian cancer (EAOC…

article 2018
Oncology letters ·doi:10.3892/ol.2018.9721

Endometriosis-associated ovarian cancer (EAOC) is a rare entity and has highly variable morphological presentations. Mural nodules can be seen in EAOC and benign ovarian endometrioma (OE), which causes a diagnostic dilemma. The differential…

article 2017
Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine ·doi:10.2463/mrms.mp.2016-0149

PURPOSE: Mural nodules and papillary projections can be seen in benign ovarian endometriosis (OE) and malignant transformation of OE (endometriosis-associated ovarian cancer [EAOC]), which can pose a challenging diagnostic dilemma to clinic…

article 2017
article 2017
PloS one ·doi:10.1371/journal.pone.0189522

OBJECTIVE: To estimate the phenotypic characterization of fibrotic process in adenomyosis occurring at the inner or the outer myometrium. METHODS: Eight cases of adenomyosis occurring at the inner myometrium (Subtype I) and 10 cases of aden…

article 2017
review 2017
Reproductive sciences (Thousand Oaks, Calif.) ·doi:10.1177/1933719117704909

Aberrant DNA methylation and histone modification are associated with an increased risk of reproductive disorders such as endometriosis. However, a cause-effect relationship between epigenetic mechanisms and endometriosis development has no…

article 2016
PloS one ·doi:10.1371/journal.pone.0165609

BACKGROUND: There is currently no reliable serum biomarker for ovarian clear cell carcinoma (CCC), a highly lethal histological subtype of epithelial ovarian cancer (EOC). Previously, using a proteome-based approach, we identified tissue fa…

article 2016
Oncology letters ·doi:10.3892/ol.2016.4383

The aim of the present study was to assess the relative concentrations of hemoglobin (Hb) species in endometriosis as a possible indicator of malignancy. Electronic absorption spectroscopy was employed to quantify the Hb species present in …

article 2016
article 2016
Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine ·doi:10.2463/mrms.mp.2016-0028

PURPOSE: Heme and iron accumulation due to repeated hemorrhage in endometriosis may contribute to a pivotal role in carcinogenesis. We evaluate the clinical application of MR relaxometry in a series of ovarian endometriosis (OE) and endomet…

article 2015
Oncology letters ·doi:10.3892/ol.2015.3268

In clear cell carcinoma of the ovary, chemoresistance frequently results in treatment failure. The present study aimed to review the potential association of transcription factor hepatocyte nuclear factor (HNF)-1β with cell cycle checkpoint…

article 2015
Cancer biomarkers : section A of Disease markers ·doi:10.3233/cbm-150484

OBJECTIVE: The purpose of this study was to investigate cyst fluid levels of total iron, heme iron and free iron in benign endometriotic cysts and endometriosis-associated ovarian cancer (EAOC) and to demonstrate the significance of these b…

review 2015
Molecular medicine reports ·doi:10.3892/mmr.2015.3635

The aim of the present review was to illustrate how dysregulation of hormonal signaling regulates expressional changes of spatially associated genes in endometriosis. From a multi‑platform endometriosis dataset, an integrated analysis was p…