نتایج جستجو برای: chemoradiation
تعداد نتایج: 4779 فیلتر نتایج به سال:
Background: Chemo-radiotherapy-induced oral mucositis represents a therapeutic challenge frequently encountered in cancer patients. This side effect causes significant morbidity and may delay or interruption of treatment plan, cyclo-oxygenase 2 (COX2) is an inducible enzyme primarily expressed in inflamed and tumoral tissues. COX-2 inhibitors have shown promise to reduce chemoradiation induce t...
Background: Esophageal carcinoma is among the first ten common malignancies worldwide, with a high prevalence in Iran. Previously, surgery or radiotherapy were the only modalities of therapy however, due to unsatisfactory outcomes, other therapeutic approaches such as chemoradiation are now under assessment as the first line treatment. Preliminary results have shown reduced local recurrence and...
Telomerase, an enzyme associated with cellular immortality, is expressed by most malignant cells and is inactive in most normal somatic cells, with the exception of proliferative stem cells, germ cells and activated lymphocytes. Measuring telomerase activity clinically may provide useful diagnostic and prognostic information of cancer. The purpose of this study was to investigate the change in ...
BACKGROUND AND PURPOSE The aim was to verify whether preoperative conventionally fractionated chemoradiation offers an advantage in sphincter preservation in comparison with preoperative short-term irradiation. PATIENTS AND METHODS Patients with resectable T3-4 rectal carcinoma without sphincters' infiltration and with a lesion accessible to digital rectal examination were randomised into: pr...
Pancreatic cancer, the fourth most common cause of cancer deaths, has a five-year survival rate of 5% or less. Surgical removal of the tumor may improve survival, but survival remains poor even in optimally resected patients. The best adjuvant therapy for patients with resected pancreatic cancer is not clear. Surgical resection followed by chemoradiation and maintenance chemotherapy has been co...
BACKGROUND Patients with stage III non-small-cell lung cancer (NSCLC) and limited disease small-cell lung cancer are excluded from concurrent chemoradiation mostly on the basis of comorbidity and age. The purpose of this prospective study was to get insight in what proportion of patients with locally advanced lung cancer would be suitable for concurrent chemoradiation. PATIENTS AND METHODS Fr...
PURPOSE We evaluated X-ray repair complementing defective repair in Chinese hamster cells 1 (XRCC1) protein in head and neck squamous cell carcinoma (HNSCC) patients in association with outcome. EXPERIMENTAL DESIGN XRCC1 protein expression was assessed by immunohistochemical (IHC) staining of pretreatment tissue samples in 138 consecutive HNSCC patients treated with surgery (n = 31), radiatio...
PURPOSE In the current study we examined the ability of diffusion MRI (dMRI) to predict pathologic response in pancreatic cancer patients receiving neoadjuvant chemoradiation. METHODS We performed a prospective pilot study of dMRI in patients with resectable pancreatic cancer. Patients underwent dMRI prior to neoadjuvant chemoradiation. Surgical specimens were graded according to the percent ...
Head and neck squamous cell carcinoma remains a challenging clinical problem because of the persisting high rate of local and distant failure due to the acquisition of chemoand radioresistance. In this study, we examined if treatment with sorafenib, a potent inhibitor of Raf kinase and VEGF receptor, could reverse the resistant phenotype in tumor and tumor-associated endothelial cells, thereby ...
Only 5% to 15% of patients with pancreatic adenocarcinoma are candidates for a potentially curative resection. Evidence that postoperative adjuvant therapy improves outcome has been limited to a single randomized trial of a well tolerated split-course, 5-Fluorouracil (5-FU) based, chemoradiation regimen. More aggressive regimens have since been developed and are associated with, at best, a mode...
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