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Biomedical subjects

H Kanetake

Publications and source records attributed to H Kanetake.

At least 127 records · Page 7Linked to original sources

[Induction therapy with CDDP and ADM for stage D prostatic cancer and its clinical response].

From September 1983 to September 1989, 20 patients with newly diagnosed stage D prostatic cancer were treated with cis-platinum (CDDP) and adriamycin (ADM) as the induction therapy. Analysis of histological and clinical effects on the induction therapy revealed partial response (PR) in 13 cases and no change (NC) in 7 cases according to Shimazaki's response criteria, and PR in 4 cases, NC in 15 cases and progression (PD) in 1 case according to NPCP criteria. Histological Ef 0-b effect was found in 2 cases, Ef 1 in 7 cases, Ef 2 in 3 cases, Ef 3 in 2 cases and Ef 4 in 2 cases. Analysis of long-term results revealed relapse in 9 cases and cancer death in 6 cases. The 1-year, 3-year and 5-year continued response rates for all cases were 85.7, 40.2 and 32.1%, respectively. The 1-year, 3-year and 5-year survival rates were 100, 64.3 and 53.6% respectively. Histologically, low responsive cases showed a tendency of relapse and cancer death more frequently than high responsive cases. These results suggest that CDDP and ADM therapy is more effective than hormone therapy in newly diagnosed stage D prostatic cancer as an induction therapy.

Adenocarcinoma↗

[Transitional cell carcinoma of the renal pelvis in a woman discovered at childbirth].

We report a case of transitional cell carcinoma of a renal pelvis in a woman discovered after childbirth. A 38-year-old woman, who delivered an immature male infant in cesarean section 29 days prior to hospitalization, was admitted complaining of asymptomatic gross hematuria. Excretory urography and retrograde pyelography showed a filling defect of the right renal pelvis, Spontaneous urine cytology indicated class 5. Renal computed tomographic scan demonstrated a mass lesion in the right kidney. Right total nephroureterectomy and partial cystectomy was performed for diagnosis and treatment. Pathological diagnosis was papillary transitional cell carcinoma (grade 2). This is the first case of transitional cell carcinoma of the renal pelvis occurring in a childbearing woman in Japan.

Adult↗

[A clinicopathological study on patients with bladder cancer treated with cystectomy].

A clinical and histopathological investigation was made on 170 patients with bladder cancer who underwent total cystectomy at our institutions between 1982 and 1986. The overall 5-year survival rates of patients with pTis + pTa, pT1, pT2, pT3, pT3b and pT4 were 100, 71.8, 60.7, 39.2, 31.4 and 0% respectively, those of patients with G1, G2 and G3 were 100%, 67.6%, 35.7% respectively. As for histopathological growth and spread pattern (INF), intramural lymphatic invasion (ly) and venous invasion (v), INF beta, INF gamma, ly2, v (+) showed the worst prognosis. These histopathological factors were considered to be closely correlated to each other. Studies on these histopathological factors are very important in planning the subsequent therapy.

Adult↗

A case of spontaneous rupture of ureter due to ureteral stone in G syndrome.

A case of spontaneous rupture of ureter with formation of urinoma due to ureteral stone, which was noticed in an infant with G syndrome, is described. Investigation revealed that the patient had bilateral vesicoureteric reflux. The urinary tract anomalies in G syndrome are discussed.

Abnormalities, Multiple↗

[A clinico-statistical study of testicular tumors--a reevaluation of 90 cases at the Nagasaki University Hospital and affiliated hospitals].

We have treated 90 cases of testicular tumors at our institutes from April, 1962 to March, 1986. Of 75 which were germ cell type tumors, 35 were a seminoma, for which the 5-year survival rate was 100% for patients in stage I, and 50% for those in stage III, respectively. Forty cases were non-seminomas, and all cases determined as being in stage I survived for 5 years, whereas 47.6% cases of those in stage III survived for 4.5 years. Thirty-six percent of those with a stage I germ cell tumor were treated with a orchiectomy alone, while other cases also combined radiotherapy and/or chemotherapy. Almost all cases of an advanced tumor received combined retroperitoneal lymph node resection, radiotherapy and/or chemotherapy. Patients with an advanced nonseminomatous tumor showed better a survival rate if they were given CDDP chemotherapy.

Dysgerminoma↗

[Clinico-pathological study on prostatic cancer, stage A using step section technic].

Of 52 male bladder cancer cases treated with radical cystectomy, 12 cases (23.9%) were incidentally diagnosed as stage A prostatic cancer. Histological analysis was done according to the "general rules for clinical and pathological studies on prostatic cancer." The average age of the prostatic cancer cases was 62.0 years with a range of 50 to 78 years. Three cases were of well differentiated adenocarcinoma, and 9 cases were of moderately differentiated adenocarcinoma. Six cases were at pT1, 3 at pT2, and 3 at pT3. One case was stage A1, and 11 were stage A2 cases. Perineural and capsular invasions were found in 3 cases each. Neither lymphatic nor vascular invasion was found in any case, and no evidence of seminal vesicular, urethral, bladder and rectal invasion was found in any case. Lymph node metastasis was not found in any of the 3 pelvic lymph node dissected cases.

Adenocarcinoma↗

Acute hemorrhagic cystitis caused by adenovirus type 11 after renal transplantation.

A case of acute hemorrhagic cystitis caused by adenovirus type 11, which occurred in an allograft recipient 6 months after a living-related renal transplantation, is described. The patient lacked a neutralizing antibody to adenovirus type 11 before transplantation. Adenovirus type 11 was isolated from his urine and he developed a neutralizing and complement-fixing antibody to this virus. Although adenovirus type 11 isolates had been obtained from 2 of 18 renal allograft recipients, only 1 patient suffered acute hemorrhagic cystitis. Adenovirus type 11 may play a role in acute hemorrhagic cystitis in renal allograft recipients during immunosuppressive therapy.

Acute Disease↗

[Clinical experience with cefmenoxime (CMX) in complicated urinary tract infections].

Cefmenoxime (CMX) was intravenously administered to 106 patients with complicated urinary tract infection at a daily dose of 2-4 g for 5 days. An excellent response in overall clinical efficacy was seen in 15 cases (18.3%), a moderate response in 46 cases (56.1%) and poor response in 21 cases (25.6%). Pyuria was cleared in 20 cases (24.4%), decreased in 22 cases (26.8%) and unchanged in 40 cases (48.8%). Bacteriuria was eliminated in 41 cases (50.0%), decreased in 17 cases (20.7%), relapsed in 7 cases (8.5%) and unchanged in 17 cases (20.7%). Bacteriologically, 74 (76.8%) of the 95 strains isolated were eradicated by CMX, and 22 (23.2%) persisted. Side effects were observed in 3 (abdominal pain, diarrhea and elevation of trans amylase) of the 106 cases. Judging from the above results, CMX is considered to be a useful drug in the treatment of complicated urinary tract infections.

Adolescent↗

Carcinosarcoma of the bladder.

We report a case of carcinosarcoma of the bladder. Total cystectomy with ileal loop urinary diversion was performed. Histologically, the bulk of the tumor tissue was rhabdomyosarcoma and adenocarcinoma. At distant areas from the bulk tumor transitional cell carcinoma was noted. The literature is reviewed and the clinicopathologic condition of carcinosarcoma of the bladder is discussed.

Adult↗

[Studies on prophylaxis and therapy of pivmecillinam against post-prostatectomy urinary tract infection].

Patients received pivmecillinam (PMPC) after prophylactic use of various antimicrobial chemotherapeutic agents following prostatectomy, and their clinical responses were assessed for effectiveness in the treatment and prevention of postoperative infection. The data were also analyzed to explore the relationship between bacterial isolates obtained during the postoperative course and the antimicrobial agents administered prophylactically against postoperative infection. Therapeutic effect of PMPC: Treatment of postoperative infections with PMPC was effective in 36 (53.7%) out of 67 patients who had undergone prostatectomy. Prophylactic effect of PMPC: The use of PMPC provided effective prevention of infection in 22 (64.7%) out of 34 patients from whom no bacterial pathogen had been isolated before postoperative antimicrobial chemotherapy. Therapeutic responses to PMPC, compared between different types of operative procedure: There was little or no difference in therapeutic effectiveness of PMPC against postoperative infection when compared between two types of operative procedure, transurethral prostatectomy and subcapsular removal of the prostate. Incidence and types of bacterial isolates following prophylactic chemotherapy with various agents after prostatectomy: Possibly because cephapirin (CEPR) and ticarcillin (TIPC) were mainly administered, alone or in combination, for prophylaxis against postoperative infection, Serratia and Pseudomonas were most frequently isolated. The findings offer suggestions as to the appropriate combination of antimicrobial agents to be used for prophylactic purposes. Effectiveness of PMPC in the presence or absence of a preoperative indwelling urethral catheter: The use of PMPC was more effective both in the treatment and prevention of postoperative infection in cases without preoperative indwelling urethral catheterization than in those with it.

Aged↗

[The Cohen cross-trigonal technic for vesicoureteral reflux with contracted bladder in children].

A 8-year-old girl was referred with both vesicoureteral reflux and repeated urinary infection since she was 30 months old. At 5 years old, she had had cystoscopy. Her excretory urogram (IVP) was almost normal; her voiding cystogram showed both vesicoureteral reflux of grade III and a maximum bladder capacity of 75 ml. At cystoscopy the ureteral orifices were in normal position of the trigone and the orifices were dilated like a golf-hole. Both ureters were reimplanted without ureter stents by the Cohen cross-trigonal advancement technique. Her IVP and a renograms postoperatively have shown normal kidney function and no urinary retention in either kidney. Her voiding cystograms have shown no vesicoureteral reflux. For 15 months after operation she has had no urinary infection. The Cohen cross-trigonal technique is a simple, safe and more applicable method than other anti-vesicoureteral reflux operations in cases of vesicoureteral reflux with contracted bladder.

Age Factors↗

In vitro evidence from tissue cultures to prove existence of rabbit and human renotropic growth factor.

When synchronized primary rabbit kidney monolayer cell cultures were incubated with a medium that contained uninephrectomized rabbit serum, the incorporation of tritiated thymidine into DNA was much greater than that with a medium that contained normal rabbit serum. The maximal growth-stimulating activity of uninephrectomized rabbit serum on thymidine incorporation into confluent monolayer cultures and sparsely cultured cells was increased approximately two- and fivefold, respectively, above that of normal serum. We conclude that uninephrectomized sera contain a growth-stimulating factor. Similarly, sera from a uninephrectomized human kidney donor and a cancer patient stimulated primary human kidney cell cultures to incorporate tritiated thymidine at levels far beyond those with their prenephrectomized sera. The maximal growth-stimulating activities of uninephrectomized human sera with confluent monolayer cultures and sparsely cultured cells were approximately six- and 13-fold, respectively, above those with the prenephrectomized sera. Thus, the maximal growth-stimulating activity in uninephrectomized human sera was much greater than that in uninephrectomized rabbit sera. Differences in the maximal growth-stimulating activities may be due to differences in the relative number of cell types, for example, epithelial versus fibroblast, present in these kidney cell cultures. By the use of primary cultured cells from other organs such as rabbit skin and human prostate and primary kidney cultures from three species (rabbit, human, and hamster), the growth-stimulating factor in uninephrectomized sera showed organ specificity, that is, renotropic and species specificity in this in vitro assay system.(ABSTRACT TRUNCATED AT 250 WORDS)

Animals↗

Renotropic growth factor found in cancer patient sera after removal of cancer-bearing kidney.

We have used two sets of primary human kidney culture systems for assaying human renotropic growth factor in day 5 postnephrectomized human sera. The first set of primary kidney cell cultures was prepared from one hydronephrotic kidney and used for assaying the renotropic growth stimulating activity of six kidney cancer patients sera simultaneously. The level of renotropic growth-stimulating activity varies from patient to patient. The postnephrectomized sera of three patients showed rather small (27 to 68%) increase over their prenephrectomized sera. The postnephrectomized sera of the remaining three patients showed a much greater (2.69- to 3.19-fold) increase over their prenephrectomized sera. Variation in the growth-stimulating activities produced in these uninephrectomized kidney cancer patients is most probably due to different levels of renal function loss by removal of the cancer-bearing kidney. Each cancer-bearing kidney has a different proportion of healthy kidney region to diseased (nonfunctional) region. The second set of primary kidney cell cultures was prepared from a healthy noncancerous region of a cancer-bearing kidney and used to assay for renotropic growth-stimulating activities in two different unilaterally nephrectomized kidney transplantation donor sera. Increased levels of growth-stimulating activity are quite similar and high (4.19- to 4.79-fold increase above their prenephrectomized sera). These high and similar assay values of the renotropic growth factor produced in two healthy humans suggest the sensitivity and reliability of the assay method with the use of the noncancerous cells from the cancer-bearing kidney.

Cells, Cultured↗

Studies on the mechanism of compensatory renal hypertrophy and hyperplasia in a nephrectomized animal model. I. Evidence for a renotropic growth stimulating factor in uninephrectomized rabbit sera using tissue culture.

When synchronized primary rabbit kidney confluent monolayer cell cultures were incubated with a medium that contained uninephrectomized rabbit serum, the incorporation of tritiated thymidine into DNA was much greater than that with a medium that contained normal rabbit serum. The maximal growth stimulating activity of uninephrectomized serum on thymidine incorporation into sparsely cultured cells was increased approximately 5 fold above that of normal serum. We conclude that uninephrectomized sera contain a growth stimulating factor. Uninephrectomized rabbit sera showed no increased stimulation of DNA synthesis in primary rabbit skin cultured cells above that by normal rabbit serum, indicating that the growth stimulating factor in uninephrectomized serum shows renotropic specificity in tissue culture. A transformed rabbit kidney cell line RK-13 did not respond to the renotropic growth stimulating factor. However, primary and the transformed rabbit kidney cells absorbed the renotropic growth stimulating factor from uninephrectomized sera. Thus, the cell line RK-13 has receptors for adsorption of the renotropic growth factor but is unable to respond further to the growth stimulating process. The renotropic growth stimulating factor is heat unstable and undialyzable by dialysis tubings with pore size up to 12,000 molecular weight. Thus the renotropic growth factor seems to be a macromolecule, probably a protein.

Animals↗