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Biomedical subjects

K Toriyama

Publications and source records attributed to K Toriyama.

77 records · Page 5Linked to original sources
PubMed1975

Absorption, distribution and excretion of neocarzinostatin (NCS) in mice after oral administration.

Distribution, excretion and toxicity of an antitumor protein, neocarzinostatin (NCS) were examined in mice after oral administration. The oral LD50 1 g/kg after intravenous injection. After oral administration of 200 mg/kg of NCS, the tissue level was low but detectable in lung, skin and pancreas in addition to the tissues of the gastrointestinal tract. The NCS level in lung and skin remained constant through 6 hours. In gastrointestinal tissues after oral administration the level was higher in the stomach than the large intestine or small intestine. The total recovery of orally administered NCS in feces of mice was 26.5% of the given dose during the first 12 hours. Inactivation of NCS by homogenates of small and large intestines (about 50%) was found in in vitro experiments.

Administration, Oral↗
PubMedDate not supplied

A clinico-pathological study of 163 untreated cases of chronic hepatitis C.

We performed a clinico-pathological study of 163 untreated cases of chronic hepatitis C. Eighty five percent of the patients were clinically asymptomatic and their physical examinations showed unremarkable or minimal changes at the time of the liver biopsy. Liver function tests tended to present slight abnormalities, involving mild elevations of the activity of the aminotransferases and gamma-glutamil transferase levels. In spite of these mild abnormalities, advanced chronic liver disease was histologically detected in eighty nine percent of the patients, mainly showing chronic active hepatitis. The most characteristic histological finding was an interlobular bile duct damage, which correlated with the presence of lymphoid aggregates in the portal tracts and with the development of fibrosis.

Adult↗
PubMedDate not supplied

Light microscopic radioautographic study on the DNA synthesis of prenatal and postnatal aging mouse retina after labelled thymidine injection.

The DNA synthesis of mouse retina from the 19th prenatal day through 12 months postnatal has been studied by light microscopic radioautography after the injection of tritiated thymidine. A peak of the labeling index after incorporation of tritiated thymidine was found at fetal day 19. The labelled cells decreased gradually with the developing of the eye from the first postnatal day and were completely disappeared in two weeks after birth. The data also indicated obvious regional differences of the incorporation of tritiated thymidine during the periods of the retina development. The labeling index was the greatest in the anterior region compared to the equator region and the posterior region in the same group of age. The average number of the silver grains in labelled nucleus lead to a decrease with the development of the retina after birth, but there was no significant regional differences found in the same group of age. The data shown from this study suggest that the cell differentiation in mouse retina proceed from posterior to anterior region.

Aging↗