Naohumi Takehara

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A 22-year-old female with a thymic carcinoma is reported. The tumor was refractory to both chemotherapy and irradiation. The patient died with an aggressive clinical course. Cytogenetic study showed that the tumor cells had a chromosome translocation, t(15;19)(q15;p13), which was not identified previously in human cancer.
Four rabbits inoculated intravenously with milk cells from 4 post-partum women seropositive for human T-cell leukemia virus type I (HTLV-I) and one rabbit inoculated with semen cells from a seropositive healthy man seroconverted for HTLV-I after 3-5 weeks but no seroconversion occurred in 2 rabbits inoculated with milk cells from a seronegative mother or(More)
To determine the minimum volume of blood required to transmit human T-cell leukemia virus type I (HTLV-I), heparinized blood was collected from a virus-infected female rabbit and aliquots of 10, 5, 1, 0.5, 0.1, and 0.01 mL were transfused into groups of two male rabbits each. All 10 rabbits transfused with 10 to 0.1 mL and 1 of 2 rabbits transfused with(More)
We describe a case of a 67-year-old woman with a history of cerebral infarction and pulmonary embolism that presented with chest pain. Subsequent evaluation resulted in a diagnosis of acute myocardial infarction and occult DVT, and imaging revealed a rare congenital absence of the infra-renal portion of the inferior vena cava, with lower extremity venous(More)
We have investigated the protective effect of human T-cell leukemia virus I (HTLV-I) immune globulin (HTLVIG) against HTLV-I in rabbits. HTLVIG containing 77 mg/ml of IgG was prepared from pooled plasma from seropositive healthy persons. In the first experiment, four groups (A, B, C, and D) of three rabbits were transfused with 5 ml blood from an(More)
Two groups of 3 rabbits, each immunized with heat-inactivated HTLV-I or a synthetic env peptide (env175-196), developed antibodies to viral proteins including gp68 and gp46. These immunized rabbits were then challenged with a transfusion of blood from HTLV-I-infected rabbits of the opposite sex. After transfusion challenge, antibody titers further rose in(More)
Transbronchial lung biopsy specimens, from three patients with non-AIDS-related Pneumocystis carinii pneumonia (PCP) and rat lung tissue in which PCP was induced by the administration of dexamethasone, were studied to determine the diagnostic usefulness of an immunohistochemical method using commercially available anti-Pneumocystis monoclonal antibody, 3F6,(More)
The pharmacokinetics and pharmacodynamics (PK/PD) of imidaprilat, an active metabolite of imidapril, a new angiotensin-converting enzyme (ACE) inhibitor, were investigated. Imidapril was infused subcutaneously for 4 weeks via an osmotic pump implanted under the skin in the back of male spontaneously hypertensive rats (SHRs). Plasma concentration of(More)
A 58-year-old male visited the Kochi Municipal Central Hospital on May 17, 1984. A barium meal study and endoscopy revealed a huge crater surrounded by a thick embankment on the posterior wall of the stomach body. Biopsy specimens taken from the lesion revealed tubular adenocarcinoma, UFT (600 mg/day) and anti-tuberculous drugs were administered due to the(More)