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Management of bladder cancer: A literature review

Research Abstract
Cancer bladder represents the fourth most common cancer in men and ninth most common cancer in women. It is the second most prevalent cancer in men 60 years of age or older in United States. Radical cystectomy is the most widely used treatment for invasive bladder cancer. Radical cystectomy and urinary diversion has long-term effects on urinary, gastrointestinal and sexual function, and changes the body image of patients who use incontinent urinary diversions. Five-year specific and overall survival rates are 68% and 40 to 60%, and that is probably dependent upon the existence of micrometastases at the time of diagnosis. Clinical trials in the adjuvant setting require large numbers of patients to detect a survival advantage. It has been difficult to demonstrate a survival benefit from adjuvant chemotherapy. Neo-adjuvant cisplatin-based combination chemotherapy resulted in a significant 14% reduction in the risk of death, which translated into a 5% absolute improvement in five-year OS (from 45 to 50%). In appropriately selected patients, bladder preserving treatment with transurethral resection, radiation therapy and concurrent chemotherapy offers a probability of long term cure and overall survival at 5-years is comparable to cystectomy-based approaches (49 to 63% at 5 years) in patients of similar clinical stage and age. Five-year survival with bladder preservation is 40 to 45%. In addition, these selective bladder-preserving approaches result in approximately 80% of the long-term survivors maintaining a normal functioning bladder.
Research Authors
Ashraf Elyamany, Mohamed Aboziada and Hamza Abbas
Research Journal
International Research Journal of Medicine and Medical Sciences
Research Member
Research Pages
PP.13-26
Research Rank
1
Research Vol
Vo.1, Issue 1
Research Year
2013

Management of bladder cancer: A literature review

Research Abstract
Cancer bladder represents the fourth most common cancer in men and ninth most common cancer in women. It is the second most prevalent cancer in men 60 years of age or older in United States. Radical cystectomy is the most widely used treatment for invasive bladder cancer. Radical cystectomy and urinary diversion has long-term effects on urinary, gastrointestinal and sexual function, and changes the body image of patients who use incontinent urinary diversions. Five-year specific and overall survival rates are 68% and 40 to 60%, and that is probably dependent upon the existence of micrometastases at the time of diagnosis. Clinical trials in the adjuvant setting require large numbers of patients to detect a survival advantage. It has been difficult to demonstrate a survival benefit from adjuvant chemotherapy. Neo-adjuvant cisplatin-based combination chemotherapy resulted in a significant 14% reduction in the risk of death, which translated into a 5% absolute improvement in five-year OS (from 45 to 50%). In appropriately selected patients, bladder preserving treatment with transurethral resection, radiation therapy and concurrent chemotherapy offers a probability of long term cure and overall survival at 5-years is comparable to cystectomy-based approaches (49 to 63% at 5 years) in patients of similar clinical stage and age. Five-year survival with bladder preservation is 40 to 45%. In addition, these selective bladder-preserving approaches result in approximately 80% of the long-term survivors maintaining a normal functioning bladder.
Research Authors
Ashraf Elyamany, Mohamed Aboziada and Hamza Abbas
Research Department
Research Journal
International Research Journal of Medicine and Medical Sciences
Research Member
Ashraf / Mohamed Elyemni / Motwaly Ali
Research Pages
PP.13-26
Research Rank
1
Research Vol
Vo.1, Issue 1
Research Year
2013

Prognosis of early breast cancer by immunohistochemistry defined intrinsic sub-types in patients treated with adjuvant chemotherapy in the NEAT/BR9601 trial.

Research Abstract
Breast cancer can be classified into molecular sub-types that have distinct survival patterns. We evaluated the prognostic significance of breast cancer sub-types in a cohort of women taking part in the NEAT and BR9601 clinical trials comparing cyclophosphamide, methotrexate and fluorouracil (CMF) with ECMF (epirubicin and CMF). Furthermore, we evaluated whether the sub-types were predictive of the added benefit of epirubicin in these trials. Tumour tissue microarrays were stained and scored for ER, PR, HER2, EGFR and CK5/6. These were used to classify the tumours into six intrinsic sub-types. We used Cox regression to compare overall survival (OS), breast cancer-specific survival (BCSS) and relapse-free survival (RFS) in the different sub-groups. We also compared the effect of ECMF with CMF by sub-group. Immunohistochemistry data were available for 1,725 cases of whom 805 were luminal 1-basal negative. Median follow-up time was 7 years. The luminal 1-basal negative tumours were associated with the best prognosis in five years after surgery and the HER2-like tumours were associated with the poorest prognosis. There was little evidence for significant heterogeneity of this effect by tumour sub-type (OS p = 0.40, BCSS p = 0.53 RFS p = 0.50) - the largest additional benefit of epirubicin was in women with tumours of the 5-negative phenotype (OS HR = 0.39 95% CI: 0.21-0.73) and the smallest was in Luminal 1-basal negative tumours (OS HR = 0.86 95% CI: 0.64-1.16). We confirmed that breast cancer sub-types show distinct behaviour with differences in short- and long-term survival. The benefit of ECMF over CMF was statistically similar in all disease sub-types.
Research Authors
Ali AM, Provenzano E, Bartlett JM, Abraham J, Driver K, Munro AF, Twelves C, Poole CJ, Hiller L, Dunn JA, Earl HM, Caldas C, Pharoah PD.
Research Department
Research Journal
Int J Cancer
Research Member
Research Pages
PP.1470-1478
Research Rank
1
Research Year
2013

Solid and cystic papillary neoplasm of the pancreas in a 18-year-old female: a case report.

Research Abstract
CONTEXT: Solid and cystic papillary neoplasm of the pancreas is an extremely rare neoplasm that mostly affects young females in the mean age of 25 years and accounts for about 0.2-2.7% of all pancreatic tumors. CASE REPORT: A 18-year-old female presented with progressively increasing mass in the left hypochondrium and epigastric regions and vague abdominal pain. There was no history of jaundice and vomiting. The mean diameter of the tumors was 17x24 cm. Preoperative core needle revealed solid and cystic papillary neoplasm. Distal pancreatectomy and splenectomy were performed. The patient did not receive adjuvant therapy and no tumor recurrence was detected in follow up. CONCLUSION: Solid and cystic papillary neoplasm may reach large dimensions with a benign behavior and is curable by surgical excision. Differential diagnosis from other tumors with aggressive behavior is therefore important.
Research Authors
Fakhry H, Abdelhady H.
Research Department
Research Journal
JOP
Research Pages
PP.642-645
Research Rank
1
Research Vol
Vol.14,No.6
Research Year
2013

Prognostic value of regulatory T cells in newly diagnosed chronic myeloid leukemia patients.

Research Abstract
BACKGROUND: Chronic myeloid leukemia (CML) is a clonal disease, characterized by a reciprocal t(9, 22) that results in a chimeric BCR/ABL fusion gene. Regulatory T cells (Tregs) constitute the main cell population that enables cancer cells to evade immune surveillance. OBJECTIVE: The purpose of our study was to investigate the level of Tregs in newly diagnosed CML patients and to correlate it with the patients' clinical, laboratory and molecular data. We also aimed to assess the effect of treatment using tyrosine kinase inhibitor (TKI) on Treg levels. METHODS: Tregs were characterized and quantified by flow cytometry in 63 newly diagnosed CML patients and 40 healthy controls. TKI was used in 45 patients with chronic phase CML, and the response to therapy was correlated with baseline Treg levels. RESULTS: The percentages of Tregs were significantly increased in CML patients compared to the controls. Treg numbers were significantly lower in patients with chronic phase CML versus the accelerated and blast phases, and were significantly lower in patients with complete molecular remission (CMR) compared to those patients without CMR. CONCLUSION: Tregs may play a role in the maintenance of CML. Moreover, the decrease of their levels in patients with CMR suggests that Tregs might have a clinical value in evaluating the effects of therapy
Research Authors
Zahran AM, Badrawy H, Ibrahim A.
Research Department
Research Journal
Int J Clin Oncol
Research Member
Research Pages
PP.753-760
Research Rank
1
Research Vol
Vol.19,No.4
Research Year
2014

Prognostic value of regulatory T cells in newly diagnosed chronic myeloid leukemia patients.

Research Abstract
BACKGROUND: Chronic myeloid leukemia (CML) is a clonal disease, characterized by a reciprocal t(9, 22) that results in a chimeric BCR/ABL fusion gene. Regulatory T cells (Tregs) constitute the main cell population that enables cancer cells to evade immune surveillance. OBJECTIVE: The purpose of our study was to investigate the level of Tregs in newly diagnosed CML patients and to correlate it with the patients' clinical, laboratory and molecular data. We also aimed to assess the effect of treatment using tyrosine kinase inhibitor (TKI) on Treg levels. METHODS: Tregs were characterized and quantified by flow cytometry in 63 newly diagnosed CML patients and 40 healthy controls. TKI was used in 45 patients with chronic phase CML, and the response to therapy was correlated with baseline Treg levels. RESULTS: The percentages of Tregs were significantly increased in CML patients compared to the controls. Treg numbers were significantly lower in patients with chronic phase CML versus the accelerated and blast phases, and were significantly lower in patients with complete molecular remission (CMR) compared to those patients without CMR. CONCLUSION: Tregs may play a role in the maintenance of CML. Moreover, the decrease of their levels in patients with CMR suggests that Tregs might have a clinical value in evaluating the effects of therapy
Research Authors
Zahran AM, Badrawy H, Ibrahim A.
Research Department
Research Journal
Int J Clin Oncol
Research Pages
PP.753-760
Research Rank
1
Research Vol
Vol.19,No.4
Research Year
2014

Pulmonary embolism caused by cement leakage during percutaneous vertebroplasty. A case report of successful conservative management.

Research Abstract
Percutaneous vertebroplasty (PV) is considered a minimally invasive procedure, yet cement leakage into the circulation may result in serious complications. Here, we are reporting a case of pulmonary embolism following PV for treatment of osteoporotic compression vertebral fracture.
Research Authors
Abd El-Rahman AM, Lazzarotti AG, Cosottini M, Puglioli M
Research Journal
Neuroradiol J.
Research Rank
1
Research Vol
Vol.25,No.4
Research Year
2012

Pesticide, Gene Polymorphisms and Bladder Cancer among Egyptian Agricultural Workers

Research Abstract
Abstract We examined the associations between pesticide exposure, genetic polymorphisms for NAD(P)H:quinone oxidoreductase I (NQO1) and superoxide dismutase 2 (SOD2), and urinary bladder cancer risk among male agricultural workers in Egypt. We used logistic regression to analyze data from a multi-center case-control study and estimate adjusted odds ratio (OR) and 95% CI (confidence interval) Exposure to pesticides was associated with increased bladder cancer risk (1.68 (1.23-2.29)) in a dose-dependent manner. The association was slightly stronger for urothelial (1.79(1.25-2.56) than for squamous cell carcinoma (1.55 (1.03-2.31)), and among participants with combined genotypes for low NQO1 and high SOD2 (2.14 (1.19-3.85) activities as compared to those with high NQO1 and low SOD2 genotypes (1.53 (0.73-3.25)). In conclusion, among male agricultural workers in Egypt, pesticide exposure is associated with bladder cancer risk and possibly modulated by genetic polymorphism.
Research Authors
Amr S, Dawson R, Saleh DA, Magder LS, George DM, El-Daly M, Squibb K, Mikhail NN, Abdel-Hamid M, Khaled H, Loffredo CA.
Research Journal
Arch Environ Occup Health
Research Member
Nabiel Nazmi Hanna Mikhail
Research Rank
1
Research Year
2013

Genetic polymorphisms in NQO1 and SOD2: interactions with smoking, schistosoma infection, and bladder cancer risk in Egypt.

Research Abstract
BACKGROUND: Bladder cancer is the most prevalent form of cancer in men among Egyptians, for whom tobacco smoke exposure and Schistosoma haematobium (SH) infection are the major risk factors. We hypothesized that functional polymorphisms in NAD(P)H: quinone oxidoreductase 1 (NQO1) and superoxide dismutase 2 (SOD2), modulators of the effects of reactive oxidative species, can influence an individual's susceptibility to these carcinogenic exposures and hence the risk of bladder cancer. METHODS: We assessed the effects of potential interactions between functional polymorphisms in the NQO1 and SOD2 genes and exposure to smoking and SH infection on bladder cancer risk among 902 cases and 804 population-based controls in Egypt. We used unconditional logistic regression to estimate the odds ratios (OR) and confidence intervals (CI) 95%. RESULTS: Water pipe and cigarette smoking were more strongly associated with cancer risk among individuals with the TT genotype for SOD2 (OR [CI 95%] = 4.41 [1.86-10.42]) as compared with those with the CC genotype (OR [CI 95%] = 2.26 [0.97-6.74]). Conversely, the risk associated with SH infection was higher among the latter (OR [CI 95%] = 3.59 [2.21-5.84]) than among the former (OR [CI 95%] = 1.86 [1.33-2.60]). Polymorphisms in NQO1 genotype showed a similar pattern, but to a much lesser extent. The highest odds for having bladder cancer following SH infection were observed among individuals with the CC genotypes for both NQO1 and SOD2 (OR [CI 95%] = 4.41 [2.32-8.38]). CONCLUSION: Our findings suggest that genetic polymorphisms in NQO1 and SOD2 play important roles in the etiology of bladder cancer by modulating the effects of known contributing factors such as smoking and SH infection.
Research Authors
Goerlitz D, Amr S, Dash C, Saleh DA, El Daly M, Abdel-Hamid M, El Kafrawy S, Hifnawy T, Ezzat S, Abdel-Aziz MA, Khaled H, Zheng YL, Mikhail N, Loffredo CA
Research Journal
Urol Oncol
Research Member
Nabiel Nazmi Hanna Mikhail
Research Rank
1
Research Vol
Vol.32,No.1
Research Year
2014
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