22 results on '"Manavoğlu, Osman"'
Search Results
2. Relation between insulin resistance and serum concentrations of IL-6 and TNF-α in overweight or obese women with early stage breast cancer
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Gonullu, Guzin, Ersoy, Canan, Ersoy, Alpaslan, Evrensel, Turkkan, Basturk, Bilkay, Kurt, Ender, Oral, Barboros, Gokgoz, Sehsuvar, and Manavoglu, Osman
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- 2005
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3. Rhabdomyosarcoma of the perianal region presenting as acute leukemia
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Ali, Rdvan, Özkalemkaş, Fahir, Ozan, Ülkü, Özçelik, Tülay, Özkocaman, Vildan, Filiz, Gülaydan, Manavoğlu, Osman, and Tunal, Ahmet
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- 2004
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4. Epidemiology of colorectal cancer in Turkey: A cross-sectional disease registry study (A Turkish Oncology Group trial).
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Faruk Aykan, Nuri, Yalçin, Suayib, Turhal, N. Serdar, Özdoğan, Mustafa, Demir, Gökhan, Özkan, Metin, Yaren, Arzu, Camci, Celalettin, Akbulut, Hakan, Artaç, Mehmet, Meydan, Nezih, Uygun, Kazim, Işikdoğan, Abdurrahman, Ünsal, Diclehan, Özyilkan, Özgür, Arican, Ali, Seyrek, Ertuğrul, Başol Tekin, Salim, Manavoğlu, Osman, and Özet, Ahmet
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- 2015
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5. Clinical significance of adiponectin expression in colon cancer patients.
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Canhoroz, Mustafa, Kanat, Özkan, Saraydaroğlu, Özlem, Buluç, Emine, Avcı, Nilüfer, Çubukçu, Erdem, Ölmez, Ömer Fatih, and Manavoğlu, Osman
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COLON cancer treatment ,ADIPONECTIN ,ONCOLOGIC surgery ,OBESITY complications ,CANCER invasiveness - Abstract
Purpose: Surgery is the definitive treatment for early colon cancers. Adjuvant therapies are used with the aim of eradicating micrometastases and improving cure rates. Recent studies have proposed that adiponectin might be responsible for obesity-related malignancies. We investigated the prognostic value of this cytokine. Materials and Methods: Patients who underwent surgical removal of stage II or III (TNM staging) primary tumors and were followed for at least three years were included in the study given adequate specimen for immunohistochemical evaluation. Based on these criteria, 53 patients were included. Results: Mean age was 58.3 ± 10.1 years (35-78 years). The mean follow-up time was 41 months (10-96 months). Immunohistochemical evaluation identified 21 patients (39.6%) with cytoplasmic adiponectin present in their specimens. The rates of recurrence were 42.9% (9/21) and 34.4% (11/32) in patients with and without adiponectin expression, respectively. In cases with adiponectin expression, mean disease - free survival was 60.3 ± 9.03 months, and in cases without adiponectin expression, mean disease - free survival was 68.7 ± 6.67 months (P = 0.414). Mean overall survival of patients with adiponectin expression was 65 months compared to 67 months for patients without (P = 0.786). Conclusion: Adiponectin, which is secreted by adipose tissue, may have a role in the development and progression of cancer via its pro-apoptotic and/or anti-proliferative effects. Adiponectin expression in tumor tissues is likely to have a negative effect on disease - free survival in patients with stage II/III colon cancer; however, no statistically significant effect was demonstrated. [ABSTRACT FROM AUTHOR]
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- 2014
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6. Fatal ischemic bowel necrosis possibly due to docetaxel and cisplatin in a patient with non-small cell lung cancer
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Kanat, Ozkan, Evrensel, Turkkan, Kurt, Ender, Keskin, Kursat, Akcali, Unsal, and Manavoglu, Osman
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- 2007
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7. Cisplatin plus etoposide in advanced non-small cell lung cancer patients age of 70 years or older
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Kanat, Ozkan, Evrensel, Turkkan, Demiray, Mutlu, Kurt, Ender, Gonullu, Guzin, Arslan, Murat, Manavoglu, Osman, and Ozkan, Atılla
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- 2003
- Full Text
- View/download PDF
8. Pleuropulmonary blastoma in an adult patient: Report of a case.
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Gönüllü, Güzın, Evrensel, Türkkan, Kurt, Ender, Aydin, Şaduman, Bayram, Samı, Aydin, FıLız, Yilmazbayhan, Dılek, and Manavoğlu, Osman
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DYSPNEA , *PROGNOSIS , *LUNG tumors , *TRISOMY , *PATIENTS - Abstract
Pleuropulmonary blastoma (PPB) typically presents in young children, most younger than 5 years, as dysontogenetic neoplasm. It has poor prognosis with three different subtypes: cystic (type I), combined cystic and solid (type II) and solid (type III). Our patient was admitted with dyspnea and was diagnosed at 25 years of age. He had upper right lobectomy and diagnosed as Type II PPB followed by alternating IE/VAC (Ifosfamide, etoposide/vincristine, dactinomycin, cyclophosphamide) polychemotherapy. Immunohistochemical studies showed vimentin positive while cytogenetic studies showed absence of trisomies 8 and 2 abnormalities. Our patient is presently alive and disease- free thirty months after diagnosis. It is not possible to obtain definite knowledge about the prognostic factors and survival rates in adult type PPB. Complete resection is proposed to be one of the important prognostic factors in literature. Longer follow up results in larger patient groups are required for obtaining definitive data. [ABSTRACT FROM AUTHOR]
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- 2007
9. Single-agent vinorelbine as third-line chemotherapy for refractory non-small cell lung cancer.
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Kanat, Özkan, Ölmez, Fatıh, Kurt, Ender, Yildiz, Abdülmecıt, Evrensel, Türkkan, Kanat, Elvan, and Manavoğlu, Osman
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LUNG cancer , *VINORELBINE , *CANCER treatment , *ANTINEOPLASTIC agents , *DRUG dosage - Abstract
The role of third-line chemotherapy for metastatic non-small cell lung cancer (NSCLC) is still unclear. The aim of this phase II study was to investigate the efficacy and safety of vinorelbine in patients with metastatic NSCLC pretreated with platin- and taxane-based chemotherapy. A total of 16 patients with metastatic NSCLC were enrolled. Patients received vinorelbine at a dose of 30 mg/m2 on days 1, 8, and 15 of a 28-day cycle, on an outpatient basis. A total of 39 treatment cycles were administered. All patients were assessable for response, toxicity, and survival. No objective responses were documented. Stabile disease was achieved in two (12.5%) patients. The median progression-free survival was 44 days (95% CI 32-57 days) and the estimated median overall survival was 103 days (95% CI 78-129 days). Neutropenia was the main toxicity. This single institution study demonstrated that vinorelbine given at this schedule and dose in patients with refractory NSCLC had limited activity. [ABSTRACT FROM AUTHOR]
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- 2006
10. Evaluation of efficacy and toxicity of systemic chemotherapy of combined epirubicin, cisplatin and bolus 5-fluorouracil for hepatobiliary tumors.
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Gönüllü, Güzİn, Evrensel, Türkkan, Kurt, Ender, Demİray, Mutlu, Arslan, Murat, Kanat, Özkan, Zorluoğlu, Abdullah, and Manavoğlu, Osman
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COMBINATION drug therapy , *LIVER tumors , *CISPLATIN , *FLUOROURACIL , *DRUG therapy - Abstract
We aimed to search the efficacy and toxicity of epirubicin, cisplatin, bolus 5-fluorouracil regimen in hepatobiliary tumors. Twelve patients, (8 with biliary tumors, 4 with hepatocellular carcinoma) were included. All patients were inoperable or metastatic. 5- Fluorouracil 500 mg/m² i.v. bolus (day 1-5), cisplatin 60 mg/m² i.v. (day 1), epirubicin 50 mg/m² i.v. (day 1) chemotherapy was given every 21 days. The patients were evaluated after median 4 cycles. There was partial response in 3 (37.5%), stable disease in 2 (25%) and progression in 3 (37.5%) patients with biliary tumor. One patient showed partial response (25%), 1 had stable disease (25%) and 2 patients had progression (50%) in hepatocellular carcinoma group. Grade 3/4 side effects were thrombocytopenia in 2 patients (17%), neutropenia in 2 patients (17%), emesis in 1 patient (8%) and alopecia in 4 patients (33%). Treatment of hepatobiliary tumors with this regimen was well tolerated. More definite results with further studies including homogeneous groups of patients must be performed. [ABSTRACT FROM AUTHOR]
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- 2006
11. Phase II study of gemcitabine plus epirubicin plus paclitaxel in metastatic breast cancer patients.
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Demıray, Mutlu, Evrensel, Türkkan, Saraydaroğlu, Özlem, Ercan, ılker, Gökgöz, şehsuvar, Topal, Uğur, Tolunay, şahsıne, Taşdelen, ısmet, Manavoğlu, Osman, Arslan, Murat, Kanat, Özkan, and Kurt, Ender
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PACLITAXEL , *CANCER treatment , *BREAST cancer patients , *ANTINEOPLASTIC agents , *METASTASIS - Abstract
Although metastatic breast cancer is essentially incurable, patients achieving a complete response may be good candidates for long term survival. Gemcitabine, epirubicin and paclitaxel have different mechanisms of action. Therefore, we conducted this phase II study to assess efficacy and safety of gemcitabine plus epirubicin plus paclitaxel (GET) combination therapy in metastatic breast cancer. The study enrolled 21 women with pathologically confirmed and measurable metastatic breast cancer who were not previously treated with gemcitabine and paclitaxel and prior doxorubicin cumulative dosage was no more than 240 mg/m² and epirubicin cumulative dosage 360 mg/m². Median ECOG performance status was 0. Fifteen patients (71.4%) had visceral metastases and most of them had liver and lung involvement as the predominant site. Treatment schedule was as follows: gemcitabine 1000 mg/m² was administered intravenously in 30 minutes on days 1 and 4 and epirubicin 90 mg/m² was administered intravenously 30 minutes on day 1 following gemcitabine administration and paclitaxel 175 mg/m² was administered intravenously in 3 hours on day 1 starting immediately after epirubicin. Objective response rate was 57.1% with 14.2% CR, and 42.8% PR. Median time to progression and overall survivals were 11 and 19 months respectively. Treatment of five patients was discontinued due to toxicity. Grade 3-4 neutropenia, anemia and thrombocytopenia were observed in 100%, 52.3%, and 42.8% of patients respectively. First and second dose reductions due to myelotoxicity were performed in 66.6% and 42.8% of patients respectively. Only 33.3% of patients received scheduled dose. In our study, the GET regimen has comparable efficacy to anthracycline-alkylator or anthracycline- taxane combination but requires proportionally high dose modifications due to myelotoxicity. [ABSTRACT FROM AUTHOR]
- Published
- 2005
12. 5-Fluorouracil, epirubicin and cisplatin (FEP) in the treatment of metastatic gastric carcinoma.
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Kanat, Özkan, Evrensel, Türkkan, Kurt, Ender, Demıray, Mutlu, Arslan, Murat, Gönüllü, Güzın, Babacan, Nalan, Yildiz, Abdülmecıt, and Manavoğlu, Osman
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CLINICAL drug trials , *FLUOROURACIL , *CISPLATIN , *STOMACH cancer , *TOXICITY testing - Abstract
In this retrospective study, we evaluated the activity and toxicity of the combination of 5-fluorouracil (5-FU), epirubicin and cisplatin (FEP) in previously untreated patients with metastatic gastric cancer. Sixty-five patients received 5-FU 300 mg/m² on days 1-5, epirubicin 50 mg/m² on day 1 and cisplatin 60 mg/m² on day 1, every 4 weeks. A median of 4 cycles was administered. There were 4 partial responses and 1 complete response (overall response rate 7.6%); 16 patients had stable disease. Median progression-free and overall survival rates were 3 months (95% CI 1.9-4) and 6 months (95% CI 4.2-7), respectively. The principal toxicity was myelosuppression. Grade 3-4 neutropenia occurred in 29.2%, anemia in 18.4%, and thrombocytopenia in 12.3% of patients. Non-hematological toxicity was mild and manageable. We concluded that FEP combination as used at the doses and schedules in this study has inferior activity against metastatic gastric cancer. [ABSTRACT FROM AUTHOR]
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- 2005
13. Pulmonary actinomycosis mimicking metastasis from lung adenocarcinoma
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Osman Manavoglu, Erdem Cubukcu, Belkıs Nihan Coşkun, Ömer Fatih Ölmez, Turkkan Evrensel, Ozkan Kanat, Elif Ülker Akyildiz, Ender Kurt, Uludağ Üniversitesi/Tıp Fakültesi/Tıbbi Onkoloji Anabilim Dalı., Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı., Uludağ Üniversitesi/Tıp Fakültesi/İç Hastalıkları Anabilim Dalı., Ölmez, Ömer Fatih, Çubukçu, Erdem, Evrensel, Türkkan, Kanat, Özkan, Kurt, Ender, Akyıldız, Elif U., Coşkun, Belkıs Nihan, Manavoğlu, Osman, AAJ-1027-2021, and AAG-7155-2021
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Male ,Lung adenocarcinoma ,Cancer Research ,Pathology ,Hemoptysis ,Fiberoptic bronchoscopy ,medicine.medical_treatment ,Comorbidity ,Diagnosis, differential ,Cancer staging ,Actinomycosis ,Metastasis ,Carboplatin ,Wedge resection ,Lung neoplasms ,Coughing ,Medicine ,Tumor volume ,Thoracotomy ,Lung actinomycosis ,Paratracheal lymph nodes ,Hematology ,General Medicine ,Pulmonary ,Middle Aged ,Lung mycosis ,medicine.anatomical_structure ,Lung metastasis ,Oncology ,Diagnostic imaging ,Radiology ,Cancer chemotherapy ,Wedge resection (lung) ,medicine.drug ,Human ,Adult ,medicine.medical_specialty ,Paclitaxel ,Weight reduction ,Whole body pet ,Adenocarcinoma ,Article ,Case report ,Computer assisted tomography ,Humans ,Multimodality cancer therapy ,Fluorodeoxyglucose ,Lung ,business.industry ,Cancer ,Amoxicillin ,Needle biopsy ,medicine.disease ,Cancer palliative therapy ,Actinomyces Odontolyticus ,Intrauterine Contraceptive Device ,business ,Sputum examination - Abstract
Background: Pulmonary actinomycosis may create a diagnostic and therapeutic dilemma especially in cancer patients. Case Report: A 64-year-old male patient presented with a productive cough, bloody sputum, and weight loss. Thoracic computed tomography (CT) showed a 5-cm mass in the upper lobe of the right lung, and a 2-cm mass in the lower lobe of the left lung. Bronchoscopic examination did not show any endobronchial lesions. CT-guided needle biopsy of the right pulmonary lesion showed lung adenocarcinoma. Whole-body positron emission tomography/CT revealed an increase in fluorodeoxyglucose accumulation in the upper lobe of the right lung, in the lower lobe of the left lung, and in the right hilar and paratracheal lymph nodes. Before chemotherapy was initiated, the patient had to be admitted to the hospital because of massive hemoptysis. Bronchoscopic examination indicated persistent bleeding in the left lower lobe bronchus. The patient underwent diagnostic left thoracotomy, and wedge resection of the lower lobe mass. The diagnosis was pulmonary actinomycosis, and the patient received oral amoxicillin. He underwent successful surgery for the primary disease following 6 cycles of chemotherapy. Conclusion: Oncologists should be aware of rare diseases that may affect management approaches in the treatment of cancer.
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- 2012
14. Primary small cell carcinoma of the breast: Report of seven cases and review of the literature
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Kılıçkap, Saadetin, Korkmaz, Taner, Öven, Bala Başak Ustaalıoğlu, Uludağ Üniversitesi/Tıp Fakültesi/Tıbbi Onkoloji Anabilim Dalı., Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı., Kanat, Özkan, Canhoroz, Mustafa, Çubukçu, Erdem, Tolunay, Şahsine, Evrensel, Türkkan, Manavoğlu, Osman, AAI-1612-2021, and AAJ-1027-2021
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Male ,Partial mastectomy ,Neuron specific enolase ,Progesterone receptor ,Multiple cycle treatment ,Cancer surgery ,Immunoreactivity ,Estrogen receptor ,Tumor volume ,Overall survival ,Breast ,Etoposide ,Tumor localization ,Prognosis ,Chromogranin ,Oncology ,Neuroendocrine carcinoma ,Distant metastasis ,Bisphosphonic acid derivative ,Female ,Fluorouracil ,Human ,Adult ,Breast carcinoma ,Synaptophysin ,External beam radiotherapy ,Major clinical study ,Lymph node dissection ,Article ,Chemotherapy ,Needle aspiration cytology ,Multimodality cancer therapy ,Cyclophosphamide ,Epirubicin ,Aged ,Small cell carcinoma ,Lymph node metastasis ,Radiotherapy ,Tumor necrosis ,Brain metastasis ,Bone metastasis ,Needle biopsy ,Neuroendocrine Carcinoma ,Chromogranins ,Cancer survival ,Cancer combination chemotherapy ,Tamoxifen ,Outcome assessment ,Clinical feature ,Cancer adjuvant therapy ,Protein expression ,Surgery ,Cisplatin ,Axillary lymph node - Abstract
Aims and background. The aim of the study was to analyze the clinicopathological characteristics, treatment modalities, and clinical outcome of patients with primary small cell carcinoma of the breast. Methods. Fifty-three cases of primary small cell carcinoma of the breast were identified; 7 cases in this series and 46 from the English-language medical literature. Results. There were 52 females and 1 male. The mean age was 53 years. Tumor size ranged from 1 to 18 cm (mean, 4.53). Axillary node metastasis was present in 61.7%. Only one patient had distant metastases at presentation. The presence of hormone receptors was reported in 24.5% of the tumors. Modified radical mastectomy was the most common surgical procedure and was performed in 50.9% of the patients. Adjuvant radiotherapy was administered to 39.6% of the patients, and 69.8% underwent chemotherapy. Thirteen percent of patients received adjuvant tamoxifen therapy. The mean follow-up was 20.75 months (range, 3-60), and 10 of 53 cases (18.9%) died of metastatic disease. Conclusions. The prognosis of primary small cell carcinoma of the breast largely depends on the initial stage of the disease. Multimodality treatment including surgery, radiotherapy and chemotherapy seems to be the most appropriate strategy for early disease. Chemotherapy is usually unsuccessful in treating metastatic disease.
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- 2011
15. Association of breast cancer and cytokine gene polymorphism in Turkish women
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Gönüllü, Güzin, Baştürk, Bilkay, Uludağ Üniversitesi/Tıp Fakültesi/Onkoloji Anabilim Dalı., Uludağ Üniversitesi/Tıp Fakültesi/Immünoloji Anabilim Dalı., Evrensel, Türkkan, Oral, Barbaros, Gözkaman, Ayşe, and Manavoğlu, Osman
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Risk ,Adult ,Survival ,Genotype ,Turkey ,Clinical article ,Expression ,Interleukin 6 ,Case-control studies ,Polymorphism, genetic ,Article ,Turkey (republic) ,Transforming growth factor beta1 ,Breast cancer ,Interleukin 10 ,Haplotype ,Humans ,Tumor necrosis factor-alpha ,Codon ,Middle aged ,Cytokine ,Mastectomy ,Gamma interferon ,Aged ,Interleukin-10 ,Restriction Fragment Length Polymorphisms ,Polymorphism ,Genetic polymorphism ,Breast carcinogenesis ,Il-10 ,Interleukin-6 ,Tumor necrosis factor alpha ,Promoter polymorphism ,Cancer hormone therapy ,Hospital admission ,Hormone ,Outpatient department ,Polymerase chain reaction ,Medicine, general & internal ,Haplotypes ,Antineoplastic agent ,Susceptibility ,Cancer adjuvant therapy ,Cytokines ,Female ,Transforming growth factor beta ,Breast neoplasms ,Controlled study ,Growth-factors ,Human - Abstract
Objective: To investigate the association of cytokine gene polymorphism with the development of breast cancer. Methods: The study was carried out in Uludag University Medical School, Bursa, Turkey. The study included 38 patients with breast cancer admitted to the Medical Oncology outpatient clinic, and 24 healthy controls, age and sex matched, from the Internal Medicine Department between 2004 and 2005. All genotyping of tumor necrosis factor-cc (TNF-alpha), tumor growth factor-beta 1 (TGF-beta 1), interleukin (IL)-10, IL-6, and interferon-gamma (IFN-gamma) experiments were performed using polymerase chain reaction sequence-specific primers. Results: The frequencies of IL-6-174GC genotype and IL-10 (-1082, -819, -592) GCC/ATA haplotype were significantly higher in the patient group (p=0.0008) when compared with controls (p=0.020). Significantly lower frequencies of IL-10 (-1082,-819,-592) ACC/ATA haplotype were observed in the patient group in comparison to the controls (p=0.026). The distribution of IFN-gamma +874, TNF-a 308, and TGF-beta 1 codon 10-25 genotypes failed to show any statistical significant association with the development of breast cancer. Conclusion: Our data suggest that IL-10 (-1082, -819, -592) GCC/ATA haplotype and IL-6-174 GC genotype seem to be potential risk factors for the development of breast cancer. The presence of IL-10ACC/ATA haplotype may be protective for the oncogenesis of breast cancer.
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- 2007
16. Successful treatment of thymoma-associated erythroid hypoplasia and thrombocytopenia with paclitaxel
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Osman Manavoglu, Ozkan Kanat, Mutlu Demiray, Murat Arslan, Ender Kurt, Turkkan Evrensel, S. Aker, Uludağ Üniversitesi/Tıp Fakültesi/Tıbbi Onkoloji ve Patoloji Anabilim Dalı., Kanat, Özkan, Evrensel, Türkkan, Kurt, Ender, Arslan, Murat, Demiray, Mutlu, Aker, Sibel, Manavoğlu, Osman, AAJ-1027-2021, and M-8060-2019
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Male ,Letter ,medicine.medical_treatment ,Disease ,Cancer staging ,Gastroenterology ,Dyscrasia ,Dexamethasone ,chemistry.chemical_compound ,Reticulocyte count ,hemic and lymphatic diseases ,Treatment outcome ,Priority journal ,Pure red cell anemia ,Anemia, aplastic ,Diphenhydramine ,Paclitaxel ,Oncology ,Vincristine ,Human ,Adult ,medicine.medical_specialty ,Thymoma ,Erythroid hypoplasia ,Thymus neoplasms ,Antineoplastic agents, phytogenic ,Ranitidine ,Disease association ,Internal medicine ,Case report ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Cyclophosphamide ,Blood cell count ,Chemotherapy ,Cytopenia ,business.industry ,Hemoglobin determination ,Drug administration schedule ,Thymic Epithelial Tumor ,Thymus Neoplasms ,medicine.disease ,Monotherapy ,Thrombocytopenia ,Thrombocyte transfusion ,Surgery ,chemistry ,Clinical feature ,Doxorubicin ,Erythrocyte transfusion ,Prednisone ,Cisplatin ,business - Abstract
respectively. The reticulocyte count reached 3%. Computed tomography of the chest showed a minimal response to chemotherapy. Two additional cycles of paclitaxel were given. The patient’s haematological values and disease have remained stable for 6 months. The best therapy for thymomaassociated cytopenia has not yet been established. We think that antitumour therapies may be effective as in other paraneoplastic syndromes. To our knowledge, this is the first report showing that paclitaxel may be beneficial in the treatment of thymoma-associated haematologic dyscrasias. The role of paclitaxel in the treatment of thymoma is unknown. On the basis of this case, we suggest that paclitaxel at 175 mg/m 2 every 3 weeks may be a promising chemotherapy for advanced or recurrent thymoma.
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- 2005
17. Prognostic value of nm23 in gastrointestinal stromal tumors
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Uludağ Üniversitesi/Tıp Fakültesi/İç Hastalıkları Anabilim Dalı., Uludağ Üniversitesi/Tıp Fakültesi/Tıbbi Patoloji Anabilim Dalı., Uludağ Üniversitesi/Tıp Fakültesi/Biyoistatistik Anabilim Dalı., Kanat, Ozkan, Adım, Şaduman, Evrensel, Türkkan, Yerci, Ömer, Ediz, Bülent, Kurt, Ender, Demiray, Mutlu, Gönüllü, Güzin, Arslan, Murat, Manavoğlu, Osman, AAJ-1027-2021, M-8060-2019, and AAH-3847-2021
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Adult ,Male ,Gastrointestinal ,Nucleoside diphosphate kinase A ,Clinical article ,Mitosis ,Expression ,Follow-up studies ,nm23 ,Article ,Tumor markers, biological ,Metastasis ,Association ,Nucleoside-Diphosphate Kinase ,Prunes ,Gastrointestinal stromal tumors ,Humans ,Tumor volume ,Tumor suppressor gene ,Middle aged ,Evaluation ,Stromal cells ,Aged ,Priority journal ,Nucleoside-diphosphate kinase ,Progression ,Proteins ,Prognosis ,Gastrointestinal neoplasms ,Immunohistochemistry ,Cancer survival ,Logistic models ,Retrospective studies ,Oncology ,Multivariate analysis ,Stromal tumor ,Protein expression ,Female ,Gene expression ,Controlled study ,Human - Abstract
Aim/Background: nm23 is suggested to represent a new class of metastasis suppressor genes. An inverse correlation between nm23 expression level and metastatic potential has been demonstrated in different malignancies. This study evaluated the prognostic value of nm23 in gastrointestinal stromal tumors (GISTs). Methods: Imummohistochemical expression level of nm23 was studied in a total of 32 patients with localized GISTs. The relationship between the expression level of nm23 and patient outcome was investigated. Results: A tumor size of 10 cm or more and a mitotic rate of 10 or more per 50 high-power fields were not significantly associated with the metastasis risk (p = 0.60 and 0.55, respectively). Tumors with high expression of nm23 tended to have significantly lower metastatic potential (p = 0.02). The median survival was significantly longer in patients with high expression of nm23 (p = 0.007). Conclusion: These results suggest that expression level of nm23 may be considered as a prognostic predictor in GISTs. Future studies with larger patient numbers will be essential to confirm the prognostic significance of nm23 in patients with GIST.
- Published
- 2004
18. Protective effect of amifostine against toxicity of paclitaxel and carboplatin in non-small cell lung cancer - A single center randomized study
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Turkkan Evrensel, Mutlu Demiray, Hakan Coskun, Ozkan Kanat, İbrahim Baran, Osman Manavoglu, Ender Kurt, Guzin Gonullu, Mehmet Zarifoglu, Ömer Faruk Turan, Uludağ Üniversitesi/Tıp Fakültesi/Medikal Onkoloji Anabilim Dalı., Uludağ Üniversitesi/Tıp Fakültesi/Kardiyoloji Anabilim Dalı., Uludağ Üniversitesi/Tıp Fakültesi/Kulak Burun ve Boğaz Hastalıkları Anabilim Dalı., Uludağ Üniversitesi/Tıp Fakültesi/Nöroloji Anabilim Dalı., Kanat, Özkan, Evrensel, Türkkan, Baran, İbrahim, Coşkun, H. Hakan, Zarifoğlu, Mehmet, Turan, Ömer Faruk, Kurt, Ender, Demiray, Mutlu, Gönüllü, Güzin, Manavoğlu, Osman, AAJ-1027-2021, and M-8060-2019
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Oncology ,Male ,Cancer Research ,Heart diseases ,medicine.medical_treatment ,Sinus bradycardia ,Randomization ,Trial ,Agent ,Dexamethasone ,Carboplatin ,chemistry.chemical_compound ,Tinnitus ,Patient selection ,Lung neoplasms ,Controlled clinical trial ,1-hour ,Protective agents ,Deterioration ,Disease course ,Prospective cohort study ,Middle aged ,Priority journal ,Protection ,Anemia ,Hematology ,General Medicine ,Amifostine ,Blood toxicity ,Clinical trial ,Damage ,Diphenhydramine ,Lung non small cell cancer ,Randomized controlled trial ,Combination ,Vertigo ,Female ,Cancer chemotherapy ,medicine.symptom ,Hypotension ,medicine.drug ,Drug hypersensitivity ,Human ,Adult ,medicine.medical_specialty ,Neutropenia ,Paclitaxel ,Vomiting ,Clinical article ,Pemetrexed ,Non-Small Cell Lung Carcinoma ,Ranitidine ,Article ,Ototoxicity ,Internal medicine ,Antineoplastic combined chemotherapy protocols ,medicine ,Neurotoxicity ,Humans ,Cisplatin plus vinorelbine ,Heart ventricle extrasystole ,Paresthesia ,Infusion ,Lung cancer ,Disease severity ,Chemotherapy ,Toxicity ,business.industry ,Motor dysfunction ,Hematologic diseases ,Hearing loss ,Carcinoma, non-small-cell lung ,Heart function ,medicine.disease ,Nervous system diseases ,Thrombocytopenia ,Cardiotoxicity ,Drug effect ,chemistry ,Cytoprotection ,Phase-II ,business ,Antiemetic agent ,Head ,Prospective studies ,Controlled study ,Sensory dysfunction - Abstract
Aim: In this study we determined the protective role of amifostine against the side effects of the combination of paclitaxel and carboplatin in patients with non-small cell lung cancer (NSCLC). Patients and Methods: Chemo-naive patients with NSCLC were eligible. Thirty-eight patients were randomized to receive paclitaxel 175 mg/m2 and carboplatin AUC=6 with amifostine 910 mg/m2 (group B) or chemotherapy alone (group A). The occurrences of hematologic, neurologic, cardiologic toxicities, and ototoxicity were evaluated. Results: All patients completed the six scheduled cycles of therapy. A total of 114 cycles of chemotherapy was given in both groups. Neutropenia grade 3–4 was observed in 11 cycles (9.6%) in group A and 19 cycles (16.6%) in group B (p=0.16). Paresthesia grade 1 or 2 was observed in 18 of 19 patients of group A and in 8 of 19 patients of group B, following the sixth cycle of chemotherapy (p=0.018). Two patients of group B and nine patients of group A suffered from sensory motor impairment grade 2 (p=0.029). There was no clinical evidence in any patient for deterioration in cardiac function. Asymptomatic and transient sinus bradycardia or ventricular premature beats developed in four patients. None of the patients reported vertigo, tinnitus, or hearing loss. Conclusion: The addition of the amifostine to the combination of paclitaxel and carboplatin may prevent or reduce the incidence of neurotoxicity in the treatment of NSCLC. Amifostine does not appear to have a preventive role in neutropenia.
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- 2003
19. Effect of misoprostol on acute cisplatin nephrotoxicity
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Antypas, G., Uludağ Üniversitesi/Tıp Fakültesi/Tıbbi Biyoloji Anabilim Dalı., Kurt, Ender, Manavoğlu, Osman, Dilek, Kamil, Orhan, Bulent, Evrensel, Türkkan, and AAJ-1027-2021
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Oral misoprostol ,Protection ,Oncology ,Cirrhosis ,Renal-function ,Cells ,Indomethacin Cells ,Prostaglandin-e1 analog misoprostol ,Kidneys ,Injury ,Cyclosporine nephrotoxicity - Abstract
Bu çalışma, 10-14 Eylül 1998 tarihleri arasında İzmir[Türkiye]'de düzenlenen 2nd Congress of the Balkan-Union-of-Oncology'de bildiri olarak sunulmuştur. Protective effects of misoprostol on non steroidal antiinflammatory drugs (NSAIDs) and cyclosporine nephrotoxicity is well described in the literature, but the role of misoprostol in cisplatin nephrotoxicity is not fully understood. In our study, we planned to investigate the protective effect of misoprostol in acute cisplatin nephrotoxicity. Our patient group consisted 28 patient with lung cancer. All patients received cisplatin + etoposide chemotherapy regimen. The patients were divided into two groups. Misoprostol Group (14 patients); was given misoprostol 100 mu g qid (po) during chemotherapy. Control Group (14 patients); only received chemotherapy. Glomerular and proximal tubular functions were measured in both groups before the onset of chemotherapy and on the 2(nd) and 6(th) days of chemotherapy. As a result of our study, we have not been able to show the protective effect of misoprostol in tubular and glomerular functional disturbances due to cisplatin administration. Balkan Union Oncol
- Published
- 1999
20. Effects of estrogen on normal kidney morphology and on the experimental pyelonephritis in rats
- Author
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Uludağ Üniversitesi/Tıp Fakültesi/İç Hastalıkları Anabilim Dalı. and Manavoğlu, Osman
- Subjects
Urology & nephrology - Published
- 1981
21. Epidemiology of colorectal cancer in Turkey: A cross-sectional disease registry study (A Turkish Oncology Group trial).
- Author
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Aykan NF, Yalçın S, Turhal NS, Özdoğan M, Demir G, Özkan M, Yaren A, Camcı C, Akbulut H, Artaç M, Meydan N, Uygun K, Işıkdoğan A, Ünsal D, Özyılkan Ö, Arıcan A, Seyrek E, Tekin SB, Manavoğlu O, Özet A, Elkıran T, and Dişçi R
- Subjects
- Adenomatous Polyposis Coli complications, Adult, Aged, Aged, 80 and over, Alcohol Drinking adverse effects, Alcohol Drinking epidemiology, Colonic Neoplasms epidemiology, Colorectal Neoplasms diagnosis, Colorectal Neoplasms pathology, Cross-Sectional Studies, Diabetes Mellitus epidemiology, Feeding Behavior, Female, Humans, Male, Middle Aged, Prospective Studies, Rectal Neoplasms epidemiology, Registries statistics & numerical data, Risk Factors, Turkey epidemiology, Colorectal Neoplasms epidemiology, Colorectal Neoplasms etiology
- Abstract
Background/aims: This study aimed to determine the epidemiological characteristics of colorectal cancer in Turkey., Materials and Methods: In this multicenter, prospective, and cross-sectional registry study, data for 968 patients with colorectal cancer from 21 centers in 7 geographic regions were analyzed., Results: Diagnosis was colon cancer in 662 (68.4%) and rectum cancer in 306 (31.6%) patients. In total, 60.9% of patients was male; mean age was 58.9±12.6 years. Among patients, 15.0% was drinking alcohol, 17.5% was smoking, 1.5% had familial history of polyposis, 15.0% had diabetes mellitus, 1.0% had inflammatory bowel disease. Fruit and vegetable consumption was low (<3 times/week) in 35.5% and red meat consumption was high (≥3 times/week) in 47.4% of the patients. Median time-to diagnosis was 3.0 months and 4.0 months for patients with colon and rectum cancer, respectively. Mean body mass index was >25 in all group of patients. Distal rectum (61.3%) and sigmoid colon (36.8%) were the most common locations of cancer, for rectum and colon respectively. In total, 85.6% of patients were operated; 25.8% had emergency surgery. Low anterior resection rate was 64.2% in rectum cancer. In majority (89.8%) of the patients with rectum cancer who received preoperative treatment, conventional chemo-radiotherapy regimen was given. pTNM staging at diagnosis showed that stage III and IV patients were in majority (35.9% and 29.7%, respectively)., Conclusion: Colon cancer is more frequent than rectum cancer in Turkey. Colorectal cancer patients are diagnosed at later stages. Most of the cases were operated. Interregional differences for risk factors are worthwhile for evaluation in future trials.
- Published
- 2015
- Full Text
- View/download PDF
22. Malignant melanoma of the stomach in an elderly patient.
- Author
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Çubukçu E, Ölmez ÖF, Özkan K, Pekgöz M, Uğraş N, Deligönül A, and Manavoğlu O
- Subjects
- Aged, Endoscopy, Gastrointestinal, Fatal Outcome, Humans, Male, Melanoma pathology, Stomach Neoplasms pathology
- Published
- 2014
- Full Text
- View/download PDF
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