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  • 1
    Electronic Resource
    Electronic Resource
    The prognostic value of p53, Ki-67 and matrix metalloproteinases MMP-2 and MMP-9 in transitional cell carcinoma of the renal pelvis and ureter (2005)
    Melbourne, Australia : Blackwell Science Pty
    International journal of urology 12 (2005), S. 0 
    Details
    ISSN: 1442-2042
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Aim: To investigate the prognostic and predictive relevance of p53 protein, Ki-67 antigen, MMP-2 and MMP-9 in patients with transitional cell carcinoma (TCC) of the upper urinary tract.Methods: The expression of p53 protein, Ki-67 antigen, MMP-2 and MMP-9 was examined by immunohistochemistry in 69 patients with TCC of the upper urinary tract. Correlation of p53, Ki-67, MMP-2 and MMP-9 over-expression with conventional pathological parameters and patient survival was examined.Results: p53 over-expression was significantly correlated with histological grade (P 〈 0.05), but not with pathological stage, vascular invasion, lymphatic invasion or lymph node metastasis. Ki-67 over-expression was significantly correlated with stage, grade, lymphatic invasion and vascular invasion (P 〈 0.05). In survival analyses, Ki-67 over-expression was a significant prognostic factor in the univariate analysis (P 〈 0.05), but it did not have a significant impact on survival in the multivariate analysis. Ki-67 labeling index was a significant prognostic factor in patients with a low p53 labeling index, but not in patients with a high p53 labeling index.Conclusion: Ki-67 over-expression is of prognostic value in TCC of the upper urinary tract, while p53, MMP-2 and MMP-9 are of limited value.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1442-2042.2005.01159.x
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  • 2
    Electronic Resource
    Electronic Resource
    External beam radiation monotherapy for prostate cancer (1999)
    Melbourne, Australia : Blackwell Science Pty
    International journal of urology 6 (1999), S. 0 
    Details
    ISSN: 1442-2042
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background : To clarify the implications and limitations of external beam radiation monotherapy for localized prostate cancer, the long-term outcomes and prognostic factors were investigated. Methods : Between 1976 and 1994, 91 patients with untreated prostate cancer were treated with external beam radiation therapy alone. Thirty-two were classified as T1b, eight were T2a, four were T2b and 47 were T3. Pelvic lymphadenectomy was carried out in 69 cases; 57 were staged as pN0, eight were pN1, four were pN2 and 22 were pNX. Linac X-rays were used in 55 cases, fast neutron in 15 and a combination of the two in 21. No other therapy was given until relapse and when relapse was evident endocrine therapy was started. Results : The observation period ranged from 3 to 206 months with a median of 78 months. Local control rate and disease-free, cause-specific and overall survivals at 10 years were 74.0, 49.6, 74.2 and 39.2%, respectively. By univariate analysis, T category, pN category and histologic grade were significant prognostic indicators for disease-free survival. Multivariate analysis revealed that T category was an independent prognostic factor. In T2b and T3 diseases, pN0/1 patients demonstrated significantly better disease-free survival than pNX. Conclusions : A favorable long-term outcome was achieved by external beam radiation monotherapy in patients with minimally extended prostate cancer (T1b and T2a). For locally advanced disease (T2b and T3), staging pelvic lymphadenectomy would be useful for the selection of patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1442-2042.1999.00082.x
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  • 3
    Electronic Resource
    Electronic Resource
    Prostate-Specific Antigen Levels from a Mass Screening Program Using Highly Sensitive RIA Kits (1997)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of urology 4 (1997), S. 0 
    Details
    ISSN: 1442-2042
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background This study was designed to evaluate the distribution of prostate-specific antigen (PSA) levels of men in a mass screening program for prostatic disease. Methods A total of 763 men over 40 years of age underwent mass screening for prostatic disease in a Japanese prefecture using the highly sensitive Eiken kit and the Hybritech (Tandem-R) kit. The screening tests consisted of serum PSA determination, digital rectal examination, a questionnaire on symptoms, evaluation of prostate volume, and determination of the obesity rate. Results Serum PSA levels of all subjects were measured with both kits. The correlation between the values obtained by the Eiken kit and those of the Tandem-R kit was high (r = 0.990), but the values of the former were slightly higher than those of the latter. Serum PSA weakly correlated with age, however, when estimated within decade age brackets, the levels of PSA showed significant differences among only 1 pair of groups stratified by age. In contrast, the levels of PSA showed significant differences among 9 pairs of groups stratified by prostate volume. Conclusion A highly sensitive assay kit is useful to evaluate both the distribution of PSA levels and the relationship of PSA values to age and prostate volume of men in mass screening programs for prostatic disease, since approximately 40% of the subjects who underwent the present mass screening showed PSA values under 1 .Ong/mL, which have been the the lower limit of detection of many PSA kits.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1442-2042.1997.tb00187.x
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  • 4
    Electronic Resource
    Electronic Resource
    Prostate adenocarcinoma producing syndrome of inappropriate secretion of antidiuretic hormone (2001)
    Melbourne, Australia : Blackwell Science Pty
    International journal of urology 8 (2001), S. 0 
    Details
    ISSN: 1442-2042
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract The syndrome of inappropriate secretion of antidiuretic hormone (ADH) was recognized in a 68-year-old man with a poorly differentiated metastatic adenocarcinoma of the prostate. Elevated levels of ADH were found in the tissues of the primary tumor and lymph node metastasis. The patient's clinical course is detailed and the pathophysiology of this syndrome is discussed. To our knowledge, this case is the ninth reported case of syndrome of inappropriate secretion of ADH with adenocarcinoma of the prostate. Antidiuretic hormone activity was proven in only three cases including this case.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1442-2042.2001.00362.x
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  • 5
    Electronic Resource
    Electronic Resource
    Changes in serum prostate-specific antigen following prostatectomy in patients with benign prostate hyperplasia (2000)
    Melbourne, Australia : Blackwell Science Pty
    International journal of urology 7 (2000), S. 0 
    Details
    ISSN: 1442-2042
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract Purpose To investigate how prostatectomy for patients with benign prostate hyperplasia (BPH) affected the serum prostate-specific antigen (PSA) levels.Methods In 193 patients who underwent prostatectomy for BPH, serum PSA levels were measured before and three months after the operation. The total prostate weight measured by transrectal ultrasonography (TRUS) and the weight of the surgical specimen were examined in relation to the pretreatment PSA value and the changes in PSA levels after the operation.Results The transition zone volume measured by TRUS could well estimate the weight of the surgical specimen in patients who underwent subcapsular prostatectomy and transurethral resection of the prostate. The concentration of preoperative serum PSA showed a significant correlation with the prostatic volume and with the transition zone volume. Removal of 1 g of BPH tissue reduced serum PSA levels by an average of 0.18 ng/mL. The change in serum PSA levels after the prostatectomy correlated with the total prostatic gland volume and with the transition zone volume.Conclusions The elevated PSA levels in patients with BPH were caused by the enlargement of the transition zone. After the resection of the adenoma, PSA levels should be expected to decrease to the normal range.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1442-2042.2000.00228.x
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  • 6
    Electronic Resource
    Electronic Resource
    Efficacy and safety of laparoscopic surgery for pheochromocytoma (2005)
    Melbourne, Australia : Blackwell Science Pty
    International journal of urology 12 (2005), S. 0 
    Details
    ISSN: 1442-2042
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Objective: Laparoscopic surgery for primary aldosteronoma and Cushing's syndrome is well established. We report on our experiences with laparoscopic adrenalectomy for pheochromocytoma, and assess the efficacy and safety of the laparoscopic approach.Methods: Between April 1998 and April 2003, a total of 23 patients underwent laparoscopic adrenalectomy for pheochromocytoma at Chiba University Hospital and Yokohama Rosai Hospital, Japan. We compared the surgical outcomes of these patients with those of 106 patients with adrenal tumors due to other pathologies who underwent laparoscopic adrenalectomy during the same period.Results: The mean tumor size of pheochromocytoma was 4.96 cm. Mean operative time was 192.7 min, and mean estimated blood loss was 130 mL. Neither mean operative time nor mean estimated blood loss was greater for patients with pheochromocytoma. Intraoperative hypertension (systolic blood pressure 〉 180 mmHg) occurred in 39.1% (9/23) of patients with pheochromocytoma. During the follow-up period, there were no mortalities or recurrences of endocrinopathy.Conclusions: Laparoscopic adrenalectomy for pheochromocytoma is a safe and minimally invasive procedure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1442-2042.2005.01015.x
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  • 7
    Electronic Resource
    Electronic Resource
    Laparoscopic adrenalectomy in patients with large adrenal tumors (2005)
    Melbourne, Australia : Blackwell Science Pty
    International journal of urology 12 (2005), S. 0 
    Details
    ISSN: 1442-2042
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Objectives: The maximum size of adrenal tumors that should be removed by laparoscopic adrenalectomy is controversial. We conducted a retrospective comparison of the results of laparoscopic adrenalectomy between patients with adrenal tumors ≥6 cm (‘large tumors’) and patients with adrenal tumors 〈6 cm (‘small tumors’).Methods: The participants in the study were 16 patients with large tumors and 111 patients with small tumors. The patients comprised 59 men and 68 women (mean age, 49.0 years; age range, 23–79) with varying diagnoses. Of the 16 patients with large tumors, five had Cushing's syndrome, four had pheochromocytomas, six had a non-functional tumor and one had malignant lymphoma. Adrenal tumors were confirmed by hormonal assays, biochemical tests and computed tomography. Of the 16 large tumors, five tumors were on the right and 11 were on the left.Results: We found no significant differences in general demographic parameters between patients with large and small tumors. The mean duration of surgery was not significantly different between two groups. (large tumors, 210 min; small tumors,175 min). The mean volume of blood loss was 212 mL for large tumors and 30 mL for small tumors (P 〈 0.001, significant difference). There was no significant difference in time until walking, duration of hospitalization or number of using analgesics used. The time to first oral intake of group 1 (〈6 cm) was significantly shorter than group 2 (≥6 cm). Tumor size (≥7.5 cm) was an independent predictor of a longer operation and greater blood loss in large tumors.Conclusions: Laparoscopic adrenalectomy for large tumors was safe and minimally invasive.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1442-2042.2005.01017.x
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  • 8
    Electronic Resource
    Electronic Resource
    Endocrine therapy for recurrence after definitive radiotherapy in patients with prostate cancer (2001)
    Melbourne, Australia : Blackwell Science Pty
    International journal of urology 8 (2001), S. 0 
    Details
    ISSN: 1442-2042
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract Background: Long-term results were analyzed to evaluate the role of endocrine therapy in the management of local and distant recurrence of prostate cancer following external radiation therapy.Methods: Between 1976 and 1994, 92 patients with untreated prostate cancer underwent external beam radiation therapy alone. Endocrine therapy had been started when relapse was evident.Results: Failure was seen in 35 of 92 patients: 10 local, 19 distant and six biochemical failures. Endocrine treatment was performed in 28 patients with nine local and 19 distant failures. The cancer-specific survival rate from the endocrine treatment was 54.5% at 5 years. Prostate-specific antigen level in 20 of 20 patients (100%) decreased to below the normal limit 3 months after the start of endocrine therapy. In univariate analysis, T classification was the most significant variable for cancer-specific survival from the initial treatment.Conclusions: A favorable outcome was achieved by endocrine therapy in patients who had relapsed after external beam radiation monotherapy. Even the recurrent tumor had a sensitivity to androgen. Patients with locally advanced disease (T2b and T3) had poorer prognosis than those with minimally extended disease (T1b and T2a).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1442-2042.2001.00288.x
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  • 9
    Electronic Resource
    Electronic Resource
    Aberrant expression of Pax-2 mRNA in renal cell carcinoma tissue and parenchyma of the affected kidney (2001)
    Melbourne, Australia : Blackwell Science Pty
    International journal of urology 8 (2001), S. 0 
    Details
    ISSN: 1442-2042
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract Background: Pax proteins are transcription factors that demonstrate oncogenic properties and appear to play a crucial role in ontogenesis. Pax-2 is expressed in early kidney organogenesis, Wilms' tumor and renal cell carcinoma. In order to determine whether the expression of Pax-2 mRNA is a frequent and specific event in renal cell carcinoma, its expression in nephrectomized specimens and cell lines was investigated. Methods: The expression of Pax-2 mRNA was examined by reverse transcription polymerase chain reaction in 55 nephrectomized specimens, nine renal parenchyma specimens from patients without renal cell carcinoma and 16 cell lines from various malignant diseases. Results: All tumor tissue specimens expressed Pax-2 mRNA. In addition, 38 of 55 specimens from the renal parenchyma of the affected kidney expressed Pax-2 mRNA. In contrast, only two of the nine kidney specimens from patients without renal cell carcinoma expressed Pax-2 mRNA, indicating that expression of this protein is significantly higher in renal cell carcinoma (P 〈 0.01). All three cell lines from renal cell carcinoma expressed Pax-2. In contrast, Pax-2 was only expressed in two of three cell lines from transitional cell carcinoma and in none of the other lines. Conclusion: The results indicate that Pax-2 expression is a frequent and highly specific event in renal cell carcinoma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1442-2042.2001.00244.x
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  • 10
    Electronic Resource
    Electronic Resource
    Effect of prostatic biopsy on free-to-total prostate-specific antigen ratio in patients with prostate cancer (2000)
    Melbourne, Australia : Blackwell Science Pty
    International journal of urology 7 (2000), S. 0 
    Details
    ISSN: 1442-2042
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background : We determined the effect of prostatic biopsy on the changes in total and free prostate-specific antigen (PSA) and free-to-total PSA ratio (F/T ratio) and examined if there are differences in these parameters between patients with benign and malignant histologic findings. Methods : The concentration of total and free PSA and the F/T ratio were determined in 35 men before and 1 h after prostatic biopsy. The level of PSA was measured with a chemiluminescent enzyme assay. Of 35 patients, nine were diagnosed as having prostate cancer. Results : In patients whose biopsy revealed cancer, the F/T ratio was lower than those without cancer, although there were no differences in total and free PSA value before prostatic biopsy. One hour after prostatic biopsy, there was an increase in the level of total and free PSA and the F/T ratio in all men. The increase in the F/T ratio was greater in patients whose biopsies revealed no prostate cancer. In patients with stage B cancer, these parameters increased more than those with stage C/D cancer. Conclusion : Prostatic biopsy causes a dramatic increase in total and free PSA. The F/T ratio also increased after biopsy. The PSA response to prostatic biopsy might be different in patients with and without prostatic malignancy. The response might also be different according to stage of prostate cancer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1442-2042.2000.00133.x
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