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Tugba Kos F.,Ankara Numune Education and Research Hospital | Aksoy S.,Ankara Numune Education and Research Hospital | Odabas H.,Ankara Numune Education and Research Hospital | Ozdemir N.,Ankara Numune Education and Research Hospital | And 3 more authors.
Journal of B.U.ON. | Year: 2011

Purpose: To study the efficacy of adjuvant therapy (chemotherapy and radiotherapy) in early stages (I-III) of gallbladder and bile duct cancers. Methods: The clinical and pathological characteristics, treatment details and survival data of patients operated with early stages (I-III) of gallbladder and bile duct cancers and followed up in our clinic between August 2002 - November 2009 were retrospectively evaluated. Results: 52 patients (median age 64 years) with early stages of gallbladder (n=36) and bile duct (n=16) cancers were analysed. Twenty-three (44.2%) patients had stage I, 23 (44.2%) stage II, and 6 (11.5%) stage III cancers. Approximately half of the patients (n=25; 48.1%) received postoperative adjuvant chemotherapy and/or radiotherapy. Patients with adjuvant treatment wereyounger than those without (62 vs. 71 years, p=0.06). Eighteen patients received chemotherapy alone, 2 chemotherapy followed by radiotherapy, 1 chemotherapy concurrently with radiotherapy, and 4 radiotherapy alone as adjuvant therapy. The regimen most frequently used (57.1%) was CFF (cisplatin 50 mg/m 2, day 1; folinic acid 200 mg/m 2, day 1; 5-fluorouracil [5-FU] 400 mg/m 2 bolus day 1 and 1600 mg/m 2 48h continuous infusion). Some poor prognostic factors like high tumor grade and vascular invasion were more frequent in patients who received adjuvant therapy. The median disease free survival (DFS) was 11.4 months for the patients that received adjuvant therapy vs. 8.2 months for those without adjuvant therapy (p=0.67). During follow up 11 patients (44.0%) with adjuvant therapy and 12 (44.4%) without have died (p=0.97). The estimated median survival was 29 months. Conclusion: Although previous studies had shown that 5-FU-based adjuvant chemotherapy may provide a small survival advantage, this was not confirmed in the present study. Prospective adjuvant trials with a standard chemotherapy regimen and larger numbers of patients are required. © 2011 Zerbinis Medical Publications. Source


Giler N.,Hacettepe University | Oksuzoglu B.,Dr Abdurrahman Yurtaslan Ankara Oncology Education And Research Hospital
Journal of Chemotherapy | Year: 2012

The aim of this prospective clinical study is to evaluate the relationship between changes in functional cardiac parameters following anthracycline therapy and carbonyl reductase 3 (CBR3p.V244M) and glutathione S transferase Pi (GSTP1p.1105V) polymorphisms. Seventy patients with normal cardiac function and no history of cardiac disease scheduled to undergo anthracycline chemotherapy were included in the study. The patients' cardiac function was evaluated by gated blood pool scintigraphy and echocardio-graphy before and after chemotherapy, as well as 1 year following therapy. Gene polymorphisms were genotyped in 70 patients using TaqMan probes, validated by DNA sequencing. A deteriorating trend was observed in both systolic and diastolic parameters from GG to AA in CBR3p.V244M polymorphism. Patients with G-allele carriers of GSTP1p.1105V polymorphism were common (60%), with significantly decreased PFR compared to patiens with AA genotype. Variants of CBR3 and GSTP1 enzymes may be associated with changes in short-term functional cardiac parameters. © 2012 Edizioni Scientifiche per L'Informazione su Farmaci e Terapia. Source


Didem T.,Istanbul University | Faruk T.,Istanbul University | Senem K.,Istanbul University | Derya D.,Istanbul University | And 3 more authors.
Tumor Biology | Year: 2014

Tenascin-C (TNC) is an extracellular matrix protein that is expressed at low levels in normal adult tissue but is highly expressed around many tumors including ovarian tumors. The objective of this study was to determine the clinical significance of the serum levels of TNC in epithelial ovarian cancer (EOC) patients. A total of 50 patients with a pathologically confirmed diagnosis of EOC were included in this study. Serum TNC levels were determined by the solid-phase sandwich enzyme-linked immunosorbent assay (ELISA) method. Age- and sex- matched 28 healthy controls were included in the analysis. Median age of the patients was 56.5 years old, range 22 to 83 years. Majority of the patients had advanced disease (FIGO stage III-IV) (90 %). The median serum TNC levels were found significantly higher in EOC patients (130.5 pg/mL) compared to healthy controls (90.1 pg/mL) (p=0.03). We found no correlation between serum TNC levels and any prognostic parameters analyzed, including age of the patients, histology, tumor grade, stage of the disease, and response to chemotherapy. Survival analysis did not show statistically significant effect of serum TNC concentration on progression-free and overall survival (p=0.36 and p=0.19, respectively). However, patients with high serum TNC levels tend to have poor overall survival. In conclusion, although serum TNC levels are elevated, it has no predictive or prognostic roles on survival in EOC patients. © 2014 International Society of Oncology and BioMarkers (ISOBM). Source


Babacan N.A.,Cumhuriyet University | Aksoy S.,Ankara Numune Education and Research Hospital | Cetin B.,Gazi University | Ozdemir N.Y.,Ankara Numune Education and Research Hospital | And 8 more authors.
Journal of B.U.ON. | Year: 2012

Purpose: Multiple primary malignant neoplasms (MPMNs) are defined as a diagnosis of two or more independent primary malignancies of different histologies/origins in an individual. The frequency of MPMN is being increasing. In this study we aimed to determine the frequency and clinical features of second primary cancers (SPCs). Methods: From January 1990 to December 2010, patients with MPMNs were screened in 5 centers. Data were obtained retrospectively from hospital charts. Results: Three hundred seventy-seven patients with MPMNs were evaluated. The median age at initial cancer diagnosis was 61 years (range 18-88). The median age at second cancer was 64 years (range 20-89). The median time between two cancer diagnoses was 15 months (range 0-504). Male to female ratio was 1.44 (M/F 223/154). The most frequent initial cancer types were head and neck (54 patients, 14.3%), breast (54 patients, 14.3%), and colorectal (43 pa tients, 11.4%). The most frequent second cancer types were lung (76 patients, 20.2%), colorectal (39 patients, 10.3%) and breast (33 patients, 8.8%). The most common cancer pairs in females were breast-gynecologic cancers (15 patients, 9.7%), colorectal-breast cancers (9 patients, 5.8%) and breast-colorectal cancers (7 patients, 4.5%). The most common cancer pairs in males were head and neck-lung cancers (29 patients, 13%), bladder-lung cancers (9 patients, 4%), and bladder-prostate cancers (7 patients, 3%). The median follow up was 36 months (range 1-595). Conclusion: Physicians should be aware of SPCs probabilities. Newly developed suspicious lesions should be evaluated rigorously. Histopathologic evaluations of suspicious lesions for second tumors should be used extensively if needed. In our series, the most common pairs were breast-gynecologic cancers in females and head and neck-lung cancers in males. © 2012 Zerbinis Medical Publications. Source


Kos F.T.,Ankara Numune Education and Research Hospital | Uncu D.,Ankara Numune Education and Research Hospital | Ozdemir N.,Ankara Numune Education and Research Hospital | Budakoglu B.,Dr Abdurrahman Yurtaslan Ankara Oncology Education And Research Hospital | And 5 more authors.
Chemotherapy | Year: 2011

Objective: Prognosis of metastatic gastric cancer is poor and median survival is between 3 and 5 months. Response rates of combination chemotherapy with 5-fluorouracil (5-FU) and cisplatin in first-line treatment have been found to be 20-25% in the English literature. It has been demonstrated that adding docetaxel to combination chemotherapy improved time to progression and overall survival. However, the toxicity rates of the docetaxel-cisplatin-5-FU protocol were high. In our study we compared efficacy and toxicity of cisplatin-5-FU-folinic acid (CFF) and modified docetaxel-cisplatin-5-FU (mDCF) regimens in the first-line treatment of metastatic gastric cancer. Patients and Methods: Between June 2004 and October 2008, 70 patients with previously untreated metastatic gastric cancer treated with CFF (n = 30) and mDCF (n = 40) were retrospectively evaluated in the study. Survival and toxicity data were compared. Results: Median age of the patients was 53 years (range 23-69). Forty-eight percent of the patients were male and 75.7% had an ECOG performance status of 0-1. Prognostic factors including age, ECOG performance status, histopathological grade, and number and sites of metastases were similar between the groups. Objective response rates (complete and partial response) were higher in the mDCF group (30.0 vs. 13.3%, p = 0.19). While toxicity was acceptable in both groups, the most common grade 3-4 toxicities were anemia in 3.3 and 5.0%, neutropenia in 20 and 7.5%, febrile neutropenia in 6.7 and 5.0%, and diarrhea in 3.3 and 5.0% in the CFF and mDCF groups, respectively. Median follow-up was 10.3 (1.5-59.6) months. During that period 90 and 97.5% of the patients were dead in the CFF and mDCF groups, respectively. Median time to progression was 4.4 (95% CI 1.8-7.0) and 6.2 months (95% CI 5.6-6.8) (p = 0.85), median overall survival was 6.5 (95% CI 1.8-11.2) and 8.7 months (95% CI 6.7-10.7) (p = 0.88) in the CFF and mDCF groups, respectively. Conclusion: The mDCF regimen has been found to be more favorable than the CFF regimen with an acceptable toxicity profile in the first-line treatment of metastatic gastric cancer. Copyright © 2011 S. Karger AG, Basel. Source

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