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Biomedical subjects

Y Tani

Publications and source records attributed to Y Tani.

At least 253 records · Page 14Linked to original sources
PubMed1984

Clinical application of prostaglandin E1 (PGE1) upon orthodontic tooth movement.

Chemically produced prostaglandin E1 (PGE1) was administered in clinical cases of orthodontic tooth movement. In the first phase, lingual arch springs were applied on both sides of the maxilla to upper first premolars which were scheduled for extraction. One side received submucosal injections of PGE1 and the other received vehicle injections. The rate of tooth movement in the buccal direction approximately doubled on the side of several PGE1 injections as compared to the control side. In the second phase, the PGE1 injections were applied in canine-retraction cases for up to 3 weeks in first-premolar-extraction cases. The rate of distal canine movement was almost double on the side receiving PGE1 injections as compared to the vehicle-injected side. In the third phase, the PGE1 injections were applied on routine canine retraction in first-premolar-extraction cases. The rate of distal canine movement was almost 1.6-fold on the side of PGE1 injections as compared to the vehicle-injected side. Throughout this study, no side effects were observed macroscopically in the gingiva and roentgenographically in the alveolar bone, except for a slight pain reaction consistent with orthodontic tooth movement.

Alprostadil↗
PubMed1984

'Decubitus' of renal graft on psoas muscle. Local changes of cortical thickness and function in the graft.

Using computerized tomography (CT scan), it was demonstrated that the renal cortex of the graft was thinner in the contact area with the psoas muscle than in the rest of the kidney and that its function in the local area appeared somewhat decreased. These findings might be related to the importance of the perirenal fat in shielding the kidney from mechanical pressure.

Adipose Tissue↗
PubMed1984

Vitamin B6 biosynthesis and glycolate reductase in Flavobacterium sp. 238-7.

An enzyme which reduces glycolate to glycolaldehyde as the first step of the biosynthesis of vitamin B6 was studied using the particulate fraction of Flavobacterium sp. 238-7, a vitamin B6 producer. The enzyme catalyzes the reduction of glycolate in the presence of NADPH, but not the oxidation of glycolaldehyde, and is designated as glycolate reductase. There is a positive correlation between the activity of the enzyme and vitamin B6 biosynthesis. The activity and the formation of the enzyme were not affected by vitamin B6. This enzyme probably plays a role in the extraordinary accumulation of vitamin B6 by the bacterium.

Alcohol Oxidoreductases↗
PubMed1984

Primary tracheobronchial amyloidosis. A case report and review of reported cases.

A case of diffuse tracheobronchial amyloidosis in a 70-year-old woman thought clinically at first to have lung carcinoma is reported. Bronchoscopic biopsy was necessary to make a diagnosis. Amyloid was deposited markedly in the subepithelial layer. After Congo-red staining amyloid showed the usual apple-green birefringence under polarizing microscope. Electron microscopic study disclosed typical amyloid fibrillar structure. Amyloid protein of this patient was confirmed to be AL protein by immunoperoxidase study which showed specific staining by the anti-A lambda antiserum. When potassium permanganate reaction was used amyloid protein of this patient resisted to the reaction. We reviewed 19 cases from the previously reported cases of primary amyloidosis of the lower respiratory tract, and gave some description of pathologic and clinical aspects of this disease.

Aged↗
PubMed1984

In vitro treatment of human acute lymphocytic leukemia cells in bone marrow with a cocktail of monoclonal antibodies.

Human leukemic cells which bear antigens present on the common acute lymphocytic leukemia (ALL) cell surface can be lysed with murine monoclonal antibodies and baby rabbit complement. With NALM-6 cells used as target cells, the optimal conditions for completely eliminating the cells in vitro have been defined. The antibody cocktail plus complement is more effective than any single antibody plus complement in lysing the target cells. Optimal lysis is obtained when the antibody cocktail at 10 micrograms/ml for each antibody and baby rabbit complement at a final dilution of 1:6 are used. Leukemic cells from two newly diagnosed ALL patients were also effectively killed by this treatment. Of special interest is the finding that human complement can be used in place of baby rabbit complement.

Animals↗