PubMed Health⌕ Search

Biomedical subjects

Y Akahonai

Publications and source records attributed to Y Akahonai.

At least 19 recordsLinked to original sources
PubMed1994

The first case of polymyositis associated with interferon therapy.

A 54-year-old man with renal cell carcinoma was treated with interferon (IFN)-gamma for 3 weeks soon after nephrectomy. Three months later he received IFN-alpha therapy for 8 weeks due to chronic active hepatitis C. He subsequently contracted polymyositis (PM): proximal muscle weakness, an elevation of muscle enzymes, myogenic patterns on the electromyograph and histologically specific findings in biopsied muscle specimens. After discontinuation of IFN his muscular weakness gradually recovered.

Carcinoma, Renal Cell↗
PubMed1989

[Clinical study of fluconazole on deep-seated fungal infections].

Fluconazole is a novel antifungal agent, available in oral and intravenous forms, which was developed by Pfizer Central Research. It is characterized by its long serum half-life (approximately 30 hours) to allow once-a-day dosing and favorable safety profile. Fluconazole was administered orally or intravenously to 166 patients with deep-seated mycosis and it was possible to evaluate clinical efficacies in 99 patients. Clinical cures were obtained in 41 (87.2%) out of 47 cases of candidiasis, in 10 (66.7%) out of 15 cases of cryptococcosis, in 17 (48.6%) out of 35 cases of aspergillosis and in 1 case each (100%) of mucormycosis and mycosis due to an unspecified yeast. Side effects were observed in 10 cases (rash 2, fever 2, abdominal discomfort 1, nausea 1, edema 1, edema/pleural effusion/oliguria 1, finger stiffness 1, hiccup 1) with incidence rate of 6.0%. Drug administrations were discontinued in 4 cases. In general, however, fluconazole was well tolerated. Abnormal changes in laboratory test values due to the drug were observed in 32 cases and incidence rate was 19.3%. These were, however, slight and temporary changes and most of them were in parameters of liver function. It is not clear if these changes were related to the fluconazole administration, because other drugs were concomitantly administered to these cases. These results indicate that fluconazole is an agent with very good potential for the treatment of the systemic deep-seated mycoses.

Adolescent↗
PubMed1987

Molecular forms of IgA produced by various lymphoid tissues--analysis using high speed liquid chromatography.

Molecular forms of immunoglobulin A (IgA) produced by cultured cells from various human lymphoid tissues were analyzed using high speed liquid chromatography (HLC). IgA secreted into culture media was easily separated into polymeric and monomeric forms by HLC. HLC has the advantages of high resolution, reproducibility, rapidity and technical simplicity in the separation of polymeric and monomeric IgA. Peripheral blood lymphocytes and cells from gut-associated lymphoid tissues, such as mesenteric lymph nodes or large bowel mucosa, secreted predominantly polymeric IgA, whereas lymphoid cells from bone marrow produced mainly monomeric IgA. Spleen cells and tonsillar cells produced nearly equal proportions of polymeric and monomeric IgA. These results suggest that with regard to IgA in serum, the polymer may originate from the gut-associated lymphoid tissues and the monomer may mostly derive from the bone marrow.

Adult↗
PubMed1986

Leukemia serum reactive with retrovirus-related antigen in normal human placenta.

Serum antibody reactive with a retrovirus-related p30 antigen in human normal term placenta was investigated and characterized by immunohistologic and immunoblotting methods. Sera obtained from patients with acute leukemia and malignant lymphoma were used as first antibody, and cryostat sections of placenta were the target antigen. An IgM antibody that reacted mainly with the basal aspect of syncytiotrophoblast of chorionic villi, where a putative human endogenous retrovirus p30 antigen is located, was directed by indirect immunofluorescence. This antibody activity, termed anti-basal aspect of syncytiotrophoblast (anti-BAST), was detected in the sera of many patients with acute leukemia (AML, ALL) and malignant lymphoma, and less frequently in sera of pregnant women and normal controls. As shown by immunoblotting analysis, the main reactive antigen recognized by anti-BAST was a non-glycosylated 32-kDa placental protein which was antigenically related to SSAV p30. A non-glycosylated 19-kDa protein was also considered to be one of the anti-BAST-corresponding antigens. This suggests the presence of a new antigen-antibody system of human retrovirus(es) revealed by subinfectious antigenic expression and by specific antibody activity in conditions of human health and disease, particularly, acute leukemias and malignant lymphomas of common types.

Antibody Specificity↗
PubMed1986

[An autopsy case of colonic carcinoid with marked leukocytosis].

A 45-year-old man with right hypochondralgia and marked leukocytosis was found to have Borrmann type II carcinoma of the sigmoid colon and its metastasis to the liver. The peripheral leukocyte count gradually increased up to 150 X 10(3)/mm3 according to the tumor enlargement. The patient died of hepatic insufficiency, and autopsy revealed carcinoid of the colon and its metastasis to the liver. Leukemoid reaction has been reported in various kinds of malignancies. However, the present case seems to be of particular interest because of the rare association with carcinoid and marked leukocytosis of more than 100 X 10(3)/mm3 without any evidence of infection.

Carcinoid Tumor↗
PubMed1985

[Epidemiological studies of adult T-cell leukemia virus in patients with adult T-cell leukemia (ATL) and ATL-related diseases in Hokkaido District of Japan].

Sera and peripheral blood lymphocytes in 40 clinical cases of adult T-cell leukemia (ATL) and 66 cases of mature T-cell malignancies in Hokkaido district, the most northern part of Japan, were examined for the infection with ATL virus (ATLV). All of the 40 ATL patients (100%) had antibodies to ATLV-associated antigen (ATLA) and 13 (19.7%) of the 66 patients with mature T-cell malignancies other than ATL were also positive for anti-ATLA. When the peripheral ATL lymphocytes were assessed after short time cultivation, both ATLA antigen and C type virus particles were detectable. In contrast to the high prevalence of ATLV antibodies in these patients, the positivity in 30,000 control individuals in this district was 0.73%. It was calculated that 8 patients of a 40,000 seropositive population are diagnosed annually as ATL in this particular northern part of Japan.

Adult↗