Search

Your search keyword '"Kozo Yoshikawa"' showing total 255 results
Start Over Author "Kozo Yoshikawa"
255 results on '"Kozo Yoshikawa"'

251. Preparation of Pb-Doped Bi-Sr-Ca-Cu-O Superconductors by a Hot-Press Method

Author

Nobuyoshi Tomita, Hiroshi Ikeda, Ryozo Yoshizaki, and Kozo Yoshikawa

Subjects
Superconductivity, High-temperature superconductivity, Microscope, Scanning electron microscope, Chemistry, Doping, General Engineering, Analytical chemistry, General Physics and Astronomy, Hot pressing, Microstructure, Magnetic susceptibility, law.invention, Nuclear magnetic resonance, law
Abstract

Synthetic conditions of Pb-doped Bi-Sr-Ca-Cu-O oxide superconductors produced by a technique of a uniaxial hot-press method were studied. The quality of the samples was measured by means of X-ray diffraction analysis, secondary electron microscope measurement and density measurement. The hot-pressed sample showed a single 2223-phase with density close to the ideal value.

Published
1990

255. CD133 expression is correlated with poor prognosis in colorectal cancer.

Author

Kashihara H, Shimada M, Kurita N, Iwata T, Sato H, Kozo Yoshikawa, Higashijima J, Chikakiyo M, Nishi M, and Matsumoto N

Subjects
AC133 Antigen, Aged, Chi-Square Distribution, Colectomy, Colorectal Neoplasms mortality, Colorectal Neoplasms pathology, Colorectal Neoplasms surgery, Disease-Free Survival, Female, Humans, Immunohistochemistry, Kaplan-Meier Estimate, Male, Multivariate Analysis, Neoplasm Staging, Proportional Hazards Models, Risk Factors, Time Factors, Treatment Outcome, Antigens, CD analysis, Biomarkers, Tumor analysis, Colorectal Neoplasms chemistry, Glycoproteins analysis, Peptides analysis
Abstract

Background/aims: Cancer stem cells (CSC) was reported to play an important role in various kinds of cancer. CD133 is one of the cancer stem cell markers in solid cancers. However, the correlation between CD133 expression and the clinicopathological factors in colorectal cancer (CRC) remains unclear., Methodology: Forty patients with CRC who underwent operations were enrolled. Expression of CD133 was investigated by immunohistochemistry (IHC). The staining was observed in the cytoplasm of cancer cells and the patients who have the staining were defined as CD133-positive cases. The patients were divided into two groups: the CD133-positive group (n = 22) and negative group (n = 18). Clinicopathological factors were compared between the two groups. The prognostic factors were investigated by multivariate analysis., Results: In the CD133-positive group, the incidence of lymph node and liver metastasis, lymphatic and venous invasion, as well as the progression of stage of cancer were higher than that in the CD133-negative group. The 5-year survival rate and the disease-free survival rate in the CD133-positive group were lower than that in the CD133-negative group. The multivariate analysis revealed that CD133 expression tended to be an independent prognostic factor., Conclusions: CD133 expression is correlated with poor prognosis in CRC.

Published
2014

Catalog

Books, media, physical & digital resources
See catalog results