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Biomedical subjects

M Takii

Publications and source records attributed to M Takii.

35 records · Page 2Linked to original sources
PubMed1984

[Clinical studies on netilmicin].

Netilmicin (NTL), a new semisynthesized aminoglycoside, was evaluated in 11 episodes of infection in 10 patients, who had severe underlying diseases, such as acute myocardial infarction, cerebral infarction, malignancy and hepatic cirrhosis. The infection was bacteremia in 3 cases, urinary tract infections in 3 cases and respiratory tract infections in 5 cases. NTL was administered intramuscularly at a dose of 100 mg twice a day for 3 to 14 days. Overall clinical efficacy was only 40%, including excellent in 2 cases, good in 2 cases, fair in 3 cases and poor in 3 cases. Bacteriologically, 2 episodes of E. coli, 2 of S. marcescens and 1 of K. pneumoniae were eradicated, whereas, 2 of P. aeruginosa were decreased, and 1 of K. pneumoniae and 1 of P. rettgeri were persisted. Transient eosinophilia was observed in 1 case, and also nephrotoxicity was encountered in 1 case.

Aged↗
PubMed1982

Benign and malignant fibrous histiocytomas of the soft tissues: functional characterization of the cultured cells.

Cell cultures were carried out from fresh tumor tissues obtained from seven cases of histiocytic tumors of the soft tissues including four of malignant fibrous histiocytoma, two of benign fibrous histiocytoma, and one of giant cell tumor of tendon sheath. The cultured cells were studied by light and electron microscopy, rosette formation for surface receptors, immune phagocytosis, and enzyme cytochemistry. The culture of each tumor revealed a mixture of histiocyte-like cells, fibroblast-like cells, amd intermediate forms. Bizarre giant cells were numerous in the early cultures of malignant fibrous histiocytoma, but they were absent in the cultures of benign fibrous histiocytoma and giant cell tumor of tendon sheath. In all the seven cases the cultured cells exhibited several features characteristic of histiocytes: (1) surface receptors for the Fc-portion of immunoglobulin G; (2) surface receptors for the third component of complement; (3) immune phagocytosis of opsonized erythrocytes; and (4) lysosomal enzymes including alpha-naphthyl butyrate esterase, and acid phosphatase. These findings suggest that the histiocytic tumors of the soft tissues in discussion actually comprise the cells that have the functional property of histiocyte. The tumor cells in the surgical specimens presented essentially the same ultrastructural and enzyme histochemical characteristics as those of the cultured cells.

Adult↗
PubMed1978

An accelerated hypertension with neither malignant nephrosclerosis nor elevation of plasma renin activity.

A case of accelerated hypertension, which was unique in a resistance to an angiotensin antagonist, and a lack of the elevation of plasma renin activity (PRA) is reported. Non-elevated PRA was coincided with non-malignant nephrosclerosis in renal histology. The acceleration was attributed to the neurological cause i.e., cerebral hemorrhage in the right hypothalamus which extended to the ventricle and subarachnoid space. The case therefore clinically seemed malignant-like, but it was not malignant hypertension in the sense of Volhard's classical definition. This does not conflict with the usefulness of the determination of PRA in the diagnosis of malignant hypertension with nephrosclerosis.

Aged↗
PubMed1977

[Preclinical and clinical studies of clindamycin-2-phosphate (author's transl)].

Preclinical and clinical studies of clindamycin-2-phosphate developed as an infectable were conducted, and the following results were obtained: 1) Clindamycin-2-phosphate administered by the intravenous drip in a dose of 600 mg over one hour showed a peak blood clindamycin level of 10.5 mcg/ml at the end of administration. Though the blood level then decreased rapidly, it stayed at 0.7 mcg/ml at 8 hours later. 2) The blood level of clindamycin following intramuscular injection of 300 mg of clindamycin-2-phosphate reached a peak of 3.3 mcg/ml at one hour later. The blood level of 6 hours after injection was 1.0 mcg/ml. 3) Clindamycin-2-phosphate 300 mg was given intramuscularly 2 to 4 times daily for 5 approximately 14 days in 4 cases of pneumonia. The drug proved effective in two cases of pneumonia due to Mycoplasma; fairly effective in another case of mixed infection caused by pneumococci, Hemophilus and N. meningitidis; and ineffective in the fourth case of infection due to Hemophilus parainfluenzae. 4) No such adverse reactions as hepatic disorder, renal disorder and colitis were noted following administration of clindamycin-2-phosphate.

Adult↗
PubMed1976

Differential response of cultured mammalian cells to cytochalasin B in multinucleation.

Cytochalasin B (CB) was applied to 13 kinds of non-tumorigenic or tumorigenic cells in vitro to investigate whether the drug would be applicable as an indicator to identify the transformation of cells. Normal cell strains suffered from more deteriorative changes in morphology than cell lines, showing arborization of their cytoplasm at 5 mug/ml. CB at 2.5 mug/ml consistently prevented cytoplasmic cleavage without interfering with nuclear division. Multinucleation of the cells exposed to CB was not related to their generation time. The correlation between multinucleation and tumorigenicity of the cells was found with some exceptions. It appears, however, that multinucleation induced by CB would not be a reliable parameter for identifying malignant transformation of cells in vitro.

Animals↗