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Biomedical subjects

S Ohshima

Publications and source records attributed to S Ohshima.

At least 289 records · Page 16Linked to original sources

Three-drug combination chemotherapy for advanced urothelial tract carcinoma.

A prospective chemotherapeutic trial using combinations of three drugs consisting of three different protocols was performed in 24 patients with advanced transitional-cell carcinoma of the urothelial tract between April 1981 and August 1986. All patients had histologically proven transitional-cell carcinoma and bidimensionally measurable lesions. The protocol I (PPA) was a 5-day course of treatment with 20 mg/m2 cis-platinum and 5 mg/m2 peplomycin (a derivative of bleomycin) on days 1-5, and 25 mg/m2 adriamycin on day 1. Protocol II (CFMit) was a 10-day course with 3 mg/m2 mitomycin-C and 300 mg/m2 cyclophosphamide on day 1, and 180 mg/m2 5-fluorouracil on days 1-10. Protocol III (PAM) was a 1-day course comprising 60 mg/m2 cis-platinum, 30 mg/m2 adriamycin, and 40 mg/m2 methotrexate. In protocols I and III, the drugs were administered every 4-5 weeks, while in protocol II, the drugs were administered continuously without any interval. Of the 9 patients who received 1 to 5 PPA courses, only 3 patients showed a minor response. In the 10 patients who received 4 to 44 CFMit courses, 3 (33%) achieved partial remission for 1.5-22 months, and 3 had a minor response. Of the 5 patients receiving 3 to 7 PAM courses, 1 patient achieved partial remission for 5 months, and 1 had a minor response. Myelosuppression, nausea, vomiting, and anorexia were frequently observed in each protocol. Loss of hair was often observed in protocols I and III. Stomatitis and diarrhea were observed in protocol II. Three patients in protocol I, 4 patients in protocol II, and 1 patient in protocol III were unable to tolerate more courses of the regimen due to the severe side effects.

Adult↗

The beneficial effects of thoracic duct drainage in HLA-1 haplotype identical kidney transplantation.

The beneficial effects of pre-treatment thoracic duct drainage on graft survival in living related kidney transplantation are presented. Since July 1980 lymphocyte depletion through thoracic duct drainage has been used as pre-treatment therapy in 39 HLA-1 haplotype identical living related kidney transplant patients. Thoracic duct drainage was maintained for 29 to 49 days (mean 36 days) before transplantation and 52 to 215 times 10(9) cells (mean 130 times 10(9) cells) were removed. Postoperative immunosuppression consisted of azathioprine and steroids. Actuarial graft survival was 100 per cent at 3 months, 97 per cent at 6 months through 2 years, 92 per cent at 3 years and 57 per cent at 4 years after transplantation. Patient survival was 100 per cent at 3 months, 97 per cent at 6 months through 3 years and 86 per cent at 4 years. Pre-treatment thoracic duct drainage maintained for more than 28 days could have a significant role on the improvement of the graft survival in HLA-1 haplotype identical kidney transplantation.

Actuarial Analysis↗

[Natural cell-mediated cytotoxicity of kidney allograft recipients].

Natural cell-mediated cytotoxicity (NCMC) displayed by peripheral blood mononuclear cells of kidney allograft recipients was examined against K562 cells to demonstrate the kinetics of NCMC activity in the posttransplant period. On 44 kidney allograft recipients 301 NCMC assays were performed between 1 and 84 months after transplantation. These patients were treated with the conventional immunosuppressive treatment consisting of steroid and azathioprine. NCMC activity sharply decreased after transplant surgery. A decreased NCMC activity continued during the first 6 months and the mean NCMC value was 19.2 +/- 14.1. In the second 30 months, NCMC activity also constantly decreased, almost to 10. It was lower than that of the first 6 months (P less than 0.01). After 37 months, some patients restored a normal NCMC activity and others showed a decreased NCMC activity. The mean value was 27.4 +/- 20.6 in the third 48 months. The depression of NCMC activity might be caused by the large dose of steroid and azathioprine in the first 6 months. In the third 48 months, NCMC activity might be dependent on the dosage of azathioprine alone. The activation of NCMC activity might be caused by acute rejection crisis.

Adolescent↗

[Descent of right renal vein--a case report].

Renal descensus with the descent of right renal vein and ureteroureterostomy was carried out in a 61-year-old male patient. The patient had a 9 X 6 mm calculus in his right kidney and 2 cm long stricture in his right upper ureter that had been caused by the previous surgery for ureteral calculus. This operation, which was described by Gil-Vernet, provided excellent results without any complications.

Aged↗

[A case report of inverted papilloma of the posterior urethra].

Sixty-seven cases of inverted papilloma have been reported in many anatomical sites of urinary tract but only 9 cases involving the posterior urethra have been described in Japan. We report the 10th case of inverted papilloma of the posterior urethra in a 27-year-old male who complained of macroscopic hematuria. The lesion was diagnosed cystoscopically and treated by transurethral resection.

Adult↗

IgA nephropathy occurring in the context of previous acute glomerulonephritis.

A 37-year-old female presented with acute onset of glomerulonephritis 10 days following an upper respiratory infection. Serum complement components were depressed and proteinuria exceeded 3.0 g daily. Renal biopsy revealed granular staining of IgG and C3 along the basement membrane as well as small amounts of IgA in a linear pattern. Gradual resolution of symptoms was followed by recrudescent proteinuria 2 years later. Renal biopsy at this time revealed large deposits of IgA in a mesangial staining pattern consistent with a diagnosis of IgA nephropathy. Possible mechanisms for this unusual morphologic transformation include enhanced mesangial permeability as well as mesangial sequestration of an exogenous antigen.

Acute Disease↗