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Biomedical subjects

N Honda

Publications and source records attributed to N Honda.

At least 307 records · Page 17Linked to original sources
PubMed1985

[A case of solid and cystic acinar cell tumor of the pancreas].

A 35-year-old woman with a tumor of the pancreatic head is presented. A filling defect, suggesting an extragastric mass, was found in the photofluorogram of a gastric mass survey. But she had no complaints. CT showed a cystic mass in the pancreatic head, but ERCP and celiac angiography indicated no invasive findings. The resected tumor, wrapped well with a partially calcifying fibrous capsule, measured 7 X 7 X 5 cm and was mostly necrotic. On histological examination, malignant findings, were not revealed. PAS-positive granules and zymogen-like granules were found in the cytoplasm by electronmicroscopic examination. Immunohistochemically, alpha 1-antitrypsin granules were detected.

Adult↗
PubMed1985

[Intravesical Bacillus Calmette-Guerin for treatment of bladder tumor].

The patients with bladder tumor (11 tumor) were given intravesical Bacillus Calmette-Guerin (BCG) therapy. The concentration of BCG solution varied from 80 to 240 mg in 40 ml of normal saline. The intravesical instillation therapy with this solution was repeated 6 times at a week interval. Seven of the tumors showed excellent response and had completely disappeared upon endoscopic examination. All of the highly responded tumors were small papillary lesions of low grade and low stage of malignancy. Regarding side effects, irritable bladder occurred in 70%, elevation of body temperature of over 37 degrees C in 40% and gross hematuria in 30% of the patients. Among them, one patient was treated with INH (0.3 g/day) for 2 weeks with satisfactory remission of the symptoms. Though the number of cases and follow up period are not satisfactory enough, topical therapy with BCG can be said to be an effective therapeutic measure against early stage urotherial tumors.

Aged↗
PubMed1985

[A clinical study of renal cell carcinoma].

Eighty two cases of renal cell carcinoma, treated at our Department between July, 1971 and May, 1984, are reviewed. The highest incidence of this disease was seen in the 5th decade and the average age of the patients was 58.8 years. Male patients predominated over the female patients, the ratio being 1.6: 1. According to Robson's classification, thirty eight cases were in stage I, five cases in stage II, nine cases in stage III and thirty cases in stage IV. The overall survival rate at one, three and five years was 77, 58 and 48%, respectively. The most common symptom was macroscopic hematuria, followed by asymptomatic, lumbago and palpable mass. The site of distant metastases was most frequently in the lung, followed by the bone, liver and lymph node. There were no remarkable differences in the prognosis of stage I patients, between the group treated with preoperative renal arterial embolization and non-treated group. No remarkable difference was seen between the survival rate of the stage IV patients treated by nephrectomy and these not treated by nephrectomy. Renal arterial embolization was an effective therapeutic measure for patients with non-resectable stage IV renal cell carcinoma (p = 0.0647, compared with non-treated group).

Adult↗
PubMed1984

Glomerular alterations in uranyl acetate-induced acute renal failure in rabbits.

The study was performed to elucidate the progression and regression of superficial and inner glomerular alterations in uranyl acetate-induced renal failure in rabbits. Fifteen hours after the drug injection, creatinine clearance (CCr) decreased to 55% of controls with slightly elevated plasma creatinine concentration (initiation stage). After 5 days, urine flow and CCr decreased to approximately zero, with severe azotemia (maintenance stage). Scanning electron microscopic observations in these stages revealed a flattening and spreading of podocyte cell bodies associated with loss of epithelial foot processes, and reduction in the density of endothelial fenestrae. These changes were more advanced in the maintenance stage. Glomerular and fenestral diameters did not significantly change in the initiation stage but increased in the maintenance stage. There was no significant difference in these morphologic alterations, however, between the superficial and inner glomeruli. Glomerular alterations reverted to normal within 14 days, with good recovery of glomerular function. The findings show no significant difference in the progression or regression of the glomerular changes between the superficial and deep cortex. These morphologic changes may play a role in the reduction of CCr observed in this model.

Acute Kidney Injury↗
PubMed1984

Suppression of proteinuria by dipyridamole in rats with aminonucleoside nephropathy.

Nephrosis was induced by single injections of puromycin of aminonucleoside to rats which were divided into two groups; the experimental group receiving dipyridamole in addition to aminonucleoside and the control group receiving aminonucleoside alone. 24-hour urinary albumin increased in rats of both groups after aminonucleoside injections. However, the experimental rats excreted significantly less albumin than controls. On the contrary, there was no significant difference in urinary IgG between the two groups. The stainings of anionic sites of glomerular basement membrane using ruthenium red revealed the reduction of anionic charge in the glomerular basement membrane of both groups, but the decrease of anionic charge was suppressed in lamina rara interna of the experimental rats. Considering the role of charge barrier in the glomerular basement membrane, it is concluded that the maintenance of anionic charge in experimental rats is causally related to the suppressed excretion of albumin.

Animals↗
PubMed1984

[clinical studies on primary renal pelvic tumors].

The 15 cases of the primary renal pelvic tumors treated at our Hospital between 1974 and 1983, were reviewed retrospectively. The patients ranged in age from 41 to 74 years old (average: 58.3 years old). There were 11 males and 4 females, the ratio being 2.8:1.0. The affected side was left in 9 cases and right in 6 cases. The most frequent symptom was macrohematuria, which was seen in 12 cases (80%). The major finding of IVP was non-functioning kidney, which was seen in 8 cases (53.3%). Positive urinary cytology was obtained in 8 cases (53.3%). As the surgical method, total nephroureterectomy with bladder cuff was performed in 8 cases, nephroureterectomy in one case and nephrectomy in 6 cases. Histologically, 14 cases were transitional cell carcinoma and one case was squamous cell carcinoma. Simultaneous urothelial tumors were seen in the bladder of 2 patients. A subsequent ureteral tumor was found in one of the 7 cases in which ureters were resected incompletely, and subsequent bladder tumors were found in 8 of the 15 cases receiving surgical treatment in the follow-up period. All of tumors were found within 2 years after operation. Over-all actual survival rates at 1, 3 and 5 years were 87%, 67%, 48%, respectively. Three and 5 year actual survival rates were 100%, 100% respectively for the low stage group and 59%, 29% respectively for the high stage group. Three and 5 year actual survival rates were 100%, 78%, respectively for the low grade group and 44%, 27% respectively for the high grade group. Among several factors, stage and grade of the tumor were the most influencing factors for prognosis.

Adult↗
PubMed1984

[Clinical studies on primary ureteral tumors].

The 15 cases of the primary ureteral tumors treated at our Hospital between 1974 and 1983, were reviewed retrospectively. The incidence of primary ureteral tumors among the outpatients in our urologic clinic was 0.15%. The patients ranged in age from 50 to 75 years old (average: 65.5 years old). There were 11 males and 4 females, the ratio being 2.8:1.0. The right ureter and the lower third of the ureter were involved more frequently than other areas. The most frequent symptom was macrohematuria which was seen in 12 cases (80%). The major finding of IVP was non-functioning kidney, which was seen in 11 cases (73.3). Positive urinary cytology was obtained in 9 cases (60%). Twelve patients underwent nephroureterectomy with bladder cuff or total cystectomy. Histologically, all cases were transitional cell carcinoma. Simultaneous urothelial tumors were seen in the bladder in 4 cases (26.7%). The over-all actual survival rates at 1, 3 and 5 years were 59%, 42%, 42%, respectively. The 5-year actual survival rate was 63% for the low grade group and 0% for the high grade group. The 5-year actual survival rate was 82% for the low stage group and 0% for the high stage group. Among several factors, grade and stage of the tumor were the most influencing factors for prognosis.

Aged↗