Biomedical subjects
Publications and source records attributed to T Koh.
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Nineteen patients with adult T-cell leukemia (ATL) have been found in the last seven years along the east coast of Kii Peninsula in Japan. The leukemic cells were of the immunologically inducer/helper T-cell phenotype. The prognosis was very poor (median survival time, 85 days), and most of the patients had fatal complications of pulmonary infections. Antibody against ATL-associated antigen (anti-ATLA) was detected in sera from 9 of 10 patients who were born along the coast. However, it was not detected in one patient who was born in a district surrounded by mountains. Although he had neither superficial lymphadenopathy nor skin lesions, he showed rapid clinical deterioration. His leukemic cells appeared to be extremely bizarre with marked nuclear deformation compared with those of the other patients. In surface marker studies the leukemic cells reacted positively with OKT3, OKT4 and OKIa-1 monoclonal antibodies. The characteristics of the anti-ATLA-negative case are discussed in comparison with the other ATL cases.
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Ceftezole, an antibiotic of cephalosporin C derivative was applied to treatment in 39 patients with odontogenic inflammation or postoperative infections. The drug was administered intravenously (1-5 g/day) for the period of 5-10 days. Twenty of them were administered jointly with gamma-globulin (Gamma-Venin). Therefore, we compared clinically between the group of ceftezole with Gamma-Venin and the other group without it. But no difference was noticed statistically between these groups. No side effect was observed with throughout all the cases.
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Long-term adjuvant immunochemotherapy carried out on the gastrectomized patients with stomach cancer was reported. The protocol comprises the administration of large-dose of Mitomycin-C (20+10) mg just after gastrectomy and the long-term administration of PSK, FT-207 or (PSK+FT-207). Almost no side effects were observed. According to the studies on the immunological parameters, the increased reactions in PPD skin test and lymphocyte blastogenesis induced by PHA and PWM were observed remarkably in group (P+F) 3 or 6 months after gastrectomy. As for the survival rate, group (P+F) showed the most preferable results at one year in stage IV, at two years in stage III and at three years in all the stages, respectively after gastrectomy.
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