H Kobayashi

BACKGROUND: Animal studies and laboratory experiments have demonstrated that exposure to dioxins may be involved in the pathophysiology of endometriosis. However, recent epidemiological investigations have shown conflicting results. Althoug…

Because endometriotic tissue is capable of implantation and invasion, it resembles neoplastic tissue. This biologic behavior is likely regulated by cell adhesion molecules and enzymes that degrade the extracellular matrix. A potential facto…

OBJECTIVE: To characterize the CA 125 antigen purified from the conditioned media using an in vitro system that we have established for the culture of epithelial cells from human uterine endometrium. STUDY DESIGN: CA 125 was purified separ…

We have established an in vitro system in which epithelial cells (EC) and stromal cells (SC) from the human endometrium are placed in culture to examine the production of CA125. There was a much greater amount of CA125 in heterotopic EC aft…

Sialyl Tn antigen (NeuAc alpha 2----6GalNac alpha 1----0-Ser/Thr [STN]) with antigenic specificity in the core structure of mucin-type carbohydrate chains has been determined. In the present study, we evaluated the clinical significance of …

Human eutopic and heterotopic endometrium were cultured and epithelial cells were isolated from stromal cells by the modified method of Satyaswaroop et al. in order to investigate the cause of elevated serum CA125 levels in patients with ad…

The possibility of the endometrial production of CA125 and the effect of P4, MPA, and E2 were investigated using tissue cultures of eutopic endometrium (uterine endometrium obtained from uterine myoma) and heterotopic endometrium (uterine m…

The clinical significance of serum sialyl Tn antigen as a tumor marker was evaluated using "STN Otsuka" kits. Results indicated that the antigen was frequently elevated in sera from patients with ovarian cancers (43.1%, 140/325), including …

A serological diagnosis of ovarian carcinoma was performed using a combination assay consisting of three tumor markers. Cancer Antigen 125 (CA125), Sialyl Lex-i (SLX), and CA72-4. The results were compared with those for the individual tumo…

CA125 levels in cul-de-sac fluid were measured in patients with endometriosis and patients with myoma uteri in order to investigate the participation of CA125 of endometrial tissue origin in peritoneal fluid levels. The translation of perit…

We measured five tumor markers simultaneously for serodiagnostic testing as a method for the early detection of ovarian cancer. To decrease both false negativity and false positivity in the results of combination assay, statistical analysis…

Serum CA72-4 levels were measured by a radioimmunoassay using the murine monoclonal antibody B72.3 in gynecologic disease. The sensitivity and specificity was compared with those of CA125. If the upper limit of normal is set at 3.9U/ml of s…

Increased concentrations of serum Sialyl SSEA-1 antigen, which belongs to type 2 chain carbohydrate antigens and is defined by a new monoclonal antibody FH-6, were observed in 47.2% of patients with ovarian cancer. The Sialyl SSEA-1 test ma…

We discussed the mechanism of the increase in CA125 among patients with benign gynecologic diseases, especially with endometriosis. The tissue CA125 concentrations of surface endometrium in patients with adenomyosis were as follows; the hig…

We investigated the usefulness of the measurement of serum CA125 levels for the diagnosis and therapeutic monitoring of endometriosis. An additional study concentrated on the production of CA125. 1. Elevated levels of serum CA125 were noted…