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Biomedical subjects

C Shimazaki

Publications and source records attributed to C Shimazaki.

At least 181 records · Page 10Linked to original sources

[Sequential combination of high-dose cytosine arabinoside and L-asparaginase in the treatment of refractory acute leukemia and malignant lymphoma].

Clinical effects of sequential administration of high-dose cytosine arabinoside with L-asparaginase were studied in 5 cases of refractory acute leukemia and 2 cases of non-Hodgkin's lymphoma. A total 12 courses were carried out on these 7 patients and complete remission was obtained in 2 courses and partial remission in 3 courses. Two cases of lymphoma with pleural effusion or CNS invasion achieved partial and complete remission, respectively. The side effects associated with this sequential therapy were nausea, vomiting, diarrhea, fever and conjunctivitis, although these were tolerable. These observations suggest that high-dose cytosine arabinoside combined with L-asparaginase is a useful regimen for refractory leukemia and lymphoma.

Adult↗

[An acute syndrome of opsoclonus and body tremulousness. A case report of benign encephalitis].

A 30-year-old woman was admitted to our hospital in May 1977, suffering from oscillation, body tremulousness and astasia-abasia. Two months prior to admission she had caught a common cold and felt paresthesia on the right arm. Three days before admission, she had photophobia, tremulousness of the trunk and head, and astasia-abasia. A neurological examination revealed difficulty in standing, and jerky movement of the body and right arm, her limbs were well coordinated. An ocular examination resulted in normal findings except for intermittent oscillation of the eyeballs. As the pupils and fundi were normal, so were the routine laboratory tests. The cerebrospinal fluid was clear and colorless under normal pressure, and showed no more than 6 mononuclear cells in any of the three examinations. CSF protein was registered 20 mg/dl, glucose 75 mg/dl, and no virus titers were elevated. Electroencephalogram was slightly abnormal due to a slowing of the Alpha wave in the background activity. Both computerized tomography and vertebral-angiography were normal. A slow and steady abatement of all symptoms started while she was taking steroid treatment in hospital. Electrooculogram showed irregular disconjugation of the eyes rotating or moving in horizontal and vertical direction. There movements conjugated or disconjugated in both eyes with 5-7 Hz of frequency and 10-20 degrees of amplitude. They decreased when the eyelids were closed or staying in a dark room. These ocular movements were regarded as opsoclonus. Then opsoclonus changed to flutter-like oscillation.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗

[A case of malignant melanoma responded to chemotherapy including DTIC and local injection of OK-432].

A 33-year-old woman with malignant melanoma well responded to a chemotherapy including DTIC, ACNU, and VCR, and intralegional injection of OK-432. Four years prior to admission, a lentigo of 5 mm diameter at her left frontal chest was found, but, histological examination resulted in no distinctly malignant findings. In November 1979, multiple subcutaneous tumors appeared over posterior surface of the chest and left axillar region, which were gradually increasing in number and size, then she was admitted to our hospital in June, 1980. Biopsy of subcutaneous tumors revealed a malignant melanoma and its metastasis to skin. Immunochemotherapy was started immediately based upon this diagnoses. The patient received 100mg DTIC i.v. for 4 days, 100mg ACNU i.v. for one day and 1 mg VCR i.v. for one day. OK-432 was locally injected into some tumors as an immunotherapy. On completion of the third course of chemotherapy, all subcutaneous tumors were decreased in size, especially the tumors injected with OK-432. However, patient didn't respond to a repeated chemotherapy, thereafter malignant melanoma was metasized to uterus and peritoneum in May, 1981, and she died in September, 1981. Major side effects of this chemotherapy were nausea and mild transient leukocytopenia. The combination of chemotherapy including DTIC and local injection of OK-432 appeared to be effective for malignant melanoma.

Adult↗

[Cardiotoxicity of daunorubicin and aclacinomycin A in patients with acute leukemia].

Anthracycline antibiotics are principal agents in the treatment of acute non-lymphocytic leukemia, although the usefulness are limited by their adverse side effects, especially by the cardiotoxicity. Aclacinomycin A (ACM) is known to be a new anthracycline antibiotic which has been isolated from Streptomyces galilaeus, and its cardiotoxicity on the experimental animal systems was reported to be more than 10 times lower than that of adriamycin. We investigated the cardiotoxicity of ACM on 29 patients with acute leukemia and compared it with daunorubicin (DNR). The measurement of STI (PEP:LVET) has been recommended to be convenient method of assessing the anthracycline cardiotoxicity, but through out analytical study, QTC measurement was proved to be more valuable for the simple and rapid detection of the cardiotoxicity induced by the agents. In comparison with the QTCs in DNR and ACM, the cardiotoxicity of ACM was much lower than that of DNR, and the reversibility of ACM induced cardiotoxicity was much more rapid. Moreover, these effects were observed even in the patients treated with the maximum dose of DNR. Therefore, ACM was expected to be one of the agents of the first choice for the relapsed cases of acute leukemia, especially APL.

Aclarubicin↗