Katsunori Shimamura

PURPOSE: Decidualization is an important event for embryo implantation and successful pregnancy. Impaired decidualization leads to implantation failure and miscarriage. However, it is unclear how often decidualization failure occurs in infe…

BACKGROUND: Clomiphene citrate (CC) is most commonly used as a first-line treatment of infertility. However, a disturbance of endometrial growth by the adverse effects of the CC has been recognized. Since a thin endometrium is recognized as…

BACKGROUND: Blood flow in the corpus luteum (CL) is closely related to luteal function. It is unclear how luteal blood flow is regulated. Standardized ovarian-stimulation protocol with a gonadotropin-releasing hormone agonist (GnRHa long pr…

OBJECTIVE: To examine whether thin endometria can be improved by increasing uterine radial artery (uRA) blood flow. DESIGN: A prospective observational study. SETTING: University hospital and city general hospital. PATIENT(S): Sixty-one …

BACKGROUND: Blood flow in the corpus luteum (CL) is associated with luteal function. The present study was undertaken to investigate whether luteal function can be improved by increasing CL blood flow in women with luteal phase defect (LFD)…

OBJECTIVE: To characterize pathophysiologic features of a "thin" endometrium. DESIGN: A prospective observational study. SETTING: University Hospital and City General Hospital. PATIENT(S): Patients with normal-thickness endometrium (Norm…

This study investigated the involvement of lipid peroxidation and antioxidant enzymes in the regulation of luteal function in pseudopregnant rats. The activities of superoxide dismutase (SOD), a specific scavenger of superoxide radicals, an…