Osamau Okitsu

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A case of primary endometrial squamous cell carcinoma (ESCC) in a 75-year-old woman is reported. In her endometrium, mature stratified squamous epithelium was associated with mucinous glands in which epithelium and glands were identical to those of the uterine cervix, but which were not connected with the cervix. Thus, the endometrial squamous epithelium(More)
The clinical value of transvaginal ultrasonography in the evaluation of the uterine cervix of pregnant women was studied. Comparison with conventional transabdominal ultrasound in 24 pregnant subjects revealed that transvaginal ultrasound was superior, because the transabdominal technique usually requires a full bladder, which causes deformation and(More)
Nerve growth factor (NGF) plays a key role in the differentiation of neurons. In this study, we established three NGF-induced neurite-positive (NIN+) subclones that showed high responsiveness to NGF-induced neurite outgrowth and three NGF-induced neurite-negative (NIN-) subclones that abolished NGF-induced neurite outgrowth from parental SH-SY5Y cells, and(More)
Bovine oocytes matured and fertilized in vitro were cultured in a chemically defined bovine embryo culture medium (BECM) or polyvinylalcohol (PVA)-free BECM supplemented with 10% heat-treated or unheated fetal calf serum (FCS). When PVA in BECM was replaced with FCS 8 h postinsemination, the proportion of >/=-cell-stage embryos 48 h postinsemination was(More)
The aim of this study was to investigate whether bovine spermatozoa possess so-called sperm factor in the cytosolic fraction (CF) which activates bovine oocytes, and whether bovine oocytes matured in vitro are activated by microinjection of CF extracted from spermatozoa of other species. In the first experiment, bovine and human spermatozoa were(More)
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