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Biomedical subjects

I Takeda

Publications and source records attributed to I Takeda.

At least 109 records · Page 6Linked to original sources

Clinical significance of serum ferritin determination for hepatocellular carcinoma.

The clinical significance of serum ferritin as a serological marker of hepatocellular carcinoma (HCC) was studied. Fasting serum ferritin levels were measured in 343 patients with diseases of the liver, using a radioimmunoassay ferritin kit. Elevated ferritin levels were obtained in various liver diseases but hyperferritinemia could be more clearly interpreted by classifying ferritin levels according to serum iron or transaminase values. Significantly higher values were obtained in HCC than liver cirrhosis. Sensitivity for diagnosis of HCC increased by serial and simultaneous determinations of ferritin and alpha-fetoprotein because high ferritin levels were observed more often in low alpha-fetoprotein-producing HCC and also in HBsAg negative, alcohol related, small-sized HCC. Therefore, simultaneous determination of alpha-fetoprotein and ferritin seems to be useful for detection of HCC in high risk patients such as those with liver cirrhosis.

Alanine Transaminase↗

Immunohistochemical localization and distribution of S-100 proteins in the human lymphoreticular system.

Immunohistochemical localization of S-100b protein and S-100ao protein in human lymphoreticular system was studied by using monospecific antibody directed against either the alpha subunit or beta subunit of S-100 protein. S-100b protein immunoreactivity was detected in Langerhans cells, interdigitating reticulum cells, and histiocytosis X cells, but not in ordinary macrophages and blood monocytes. In contrast, S-100ao protein immunoreactivity was detected in blood monocytes, macrophages of lymph node, alveolar macrophages of lung, and small numbers of Kupffer cells of liver. S-100ao immunoreactivity was also detected in epithelioid cells, Langhans giant cells, and foreign body giant cells. The present findings suggest that the presence of S-100ao protein in the cytoplasm is one of the characteristic features of cells in the human mononuclear phagocyte system. The detection of S-100b, but not S-100ao, immunoreactivity in Langerhans cells and interdigitating reticulum cells also suggests that they are independent of the monocyte-macrophage system. S-100ao protein may be a novel cytoplasmic marker for cells of the human monocyte-macrophage system.

Biomarkers↗

[A case of localized lipomatosis in the pancreatic head presenting a lipoma-like appearance].

A 63-year-old woman with localized lipomatosis in the pancreatic head is reported. She was diagnosed to have a lipoma by clinical data including CT scanning. Histopathological examination of the extirpated mass revealed that the lesion was mostly composed of mature fatty tissue without any lobulation or encapsulation by connective tissue, there was a small amount of scattered pancreatic parenchyma at the peripheral and deeper parts of the mass. No Langerhans' islets were detected. Based on these findings, the lesion was diagnosed as localized lipomatosis in the pancreatic head.

Female↗