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Biomedical subjects

T Kitahara

Publications and source records attributed to T Kitahara.

At least 235 records · Page 13Linked to original sources
PubMed1979

Radioimmunoassay for human pancreatic amylase: comparison of human serum amylase by measurement of enzymatic activity and by radioimmunoassay.

A radioimmunoassay (RIA) for human pancreatic amylase has been developed for the determination of human serum amylase content. The assay was shown to be sensitive (7 ng/ml), reproducible and specific, but human pancreatic amylase and salivary amylase could not be distinguished by the antiserum used. In normal subjects, the mean concentration of amylase determined by the RIA was found to be 122.1 ng/ml (range: 55--250 ng/ml). A good correlation was observed between the concentration of amylase and its enzymatic activity in normal subjects. In some instances with high amylase activity, however, the rise in enzymatic activity was not accompanied by increasing amount of amylase content.

Amylases↗
PubMed1979

Z shaped primary colorectal anastomosis using the GIA autosuture for Hirschsprung's disease.

The Duhamel operation for Hirschsprung's disease has won wide acceptance throughout the world. However, this procedure is not without difficulties, and the usual technique of employing various crushing clamps for division of the colo-rectal septum is inelegant, inconvenient and uncertain. This paper presents an operative technique with particular reference to the use of the GIA autosuture surgical stapling instrument in the Z shaped primary colorectal side-to-side anastomosis for Hirschsprung's disease advocated by Ikeda. This is a single and primary procedure, and makes the postoperative care easier and more comfortable for the patients. Experiences with twenty-five patients are reported.

Child↗
PubMed1979

Clinical studies using radiocolloid in chyluria.

Very little radioactive colloid, injected subcutaneously is excreted in urine by the normal kidney. In chyluria patients, however, radiocolloid injected subcutaneously (not venously) is passed through in larger quantities in the urine to the control patients, because of the lymphatic communication with urinary tract. As far as we investigated, measurement of the radiocolloid in urine is a valid clinical test for chyluria patients.

Adult↗
PubMed1979

Familial occurrence of moya-moya disease: report of three Japanese families.

Three Japanese families with moya-moya disease in six patients are presented. These six patients were among 49 cases of confirmed moya-moya disease in our experience, and the familial incidence was more than 12%. A relatively high familial incidence (7%) was found in the total Japanese series emphasising the important hereditary components in the pathogenesis of the disease.

Adolescent↗
PubMed1978

Leukemic distribution of a human acute lymphocytic leukemia cell line (Ichikawa strain) in nude mice conditioned with whole-body irradiation.

Induction of leukemia in nude mice (BALB/c nu/nu) was attempted by inoculation with a human acute lymphocytic leukemia cell line (Ichikawa strain, maintained in an ascitic form in our institute). Inoculation of the cells i.v. in normal nude mice failed to produce leukemia. However, conditioning with whole-body irradiation (500 rads) resulted in induction of leukemia after i.v. inoculation, especially when such inocluation was performed 3 days after irradiation. The correlation of survival to inoculum size (10(5) to 10(5)) was inversely exponential. Leukemic infiltration was noted in the spleen, lymph nodes, bone marrow, meninges, liver, kidneys, etc., as seen in human leukemia. These cells retained their original cytological characteristics, ultrastructural features, and surface markers and revealed high terminal deoxynucleotidyltransferase activity as T-derived cells. Chromosome analysis revealed aneuploidy in a hypotetraploid range with a mode of 88 chromosomes.

Animals↗