375 results match your criteria: "University Institute of Oncology[Affiliation]"

Combination of capecitabine and phenytoin may cause phenytoin intoxication: a case report.

Am J Ther

September 2015

1Department of Medical Oncology, Istanbul University Institute of Oncology, Istanbul, Turkey; and 2Department of Cardiology, Istanbul Bakirköy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey.

Capecitabine is an oral antineoplastic agent, and phenytoin is an anticonvulsant drug with a narrow therapeutic index. Although the interaction between capecitabine and phenytoin is rare, it may be potentially fatal. This interaction is thought to be at the level of CYP2C9 isoenzyme system in the liver.

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Background: The overall number of cancer cases is increasing and, therefore, strengthening cancer prevention has become a priority. The institutions responsible for its control establish guidelines for primary prevention. These include recommendations, such as: not smoking, following a healthy diet, doing daily physical exercise or avoiding overweight.

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Aim: The purpose of this study is to investigate the effect of intraperitoneal (IP) bevacizumab on colonic anastomosis and evaluate the effects on early postoperative adhesion formation.

Materials And Methods: A total of 24 mature female Sprague-Dawley rats were used for this study. Rats were randomly assigned to a control group that received saline (n = 8) or to experimental groups (n = 8 each) that received bevacizumab at a dose of 2.

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Purpose: To evaluate the clinicopathologic characteristics and survival of patients with family history of breast/ ovarian cancer (FHBOC).

Methods: In this study with 1987 breast cancer patients, we analyzed their tumor characteristics and outcomes, as well as the total number, degree and age of affected relatives, and their type of cancer. Results were assessed using Pearson chi-square test, Kaplan-Meier method and Cox regression analysis.

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Human epidermal growth factor receptor (HER) 2 overexpression, observed in 20-25 percent of invasive breast cancers, is well known to be associated with a more aggressive phenotype and poor prognosis, with resistance to certain chemotherapeutic agents. The majority of patients with metastatic breast cancer who initially respond to trastuzumab, demonstrate disease progression within 1 year of treatment initiation. Furthermore, lack of response in some patients and relapse during the course of therapy, continue to challenge researchers and clinicians.

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Rhythmical contraction of the heart is controlled by the cardiac conduction system (CCS) that consists of the three main parts: the sino-atrial node, the atrioventricular node and the His-Purkinje system. A heartbeat signal, originated from CCS, spreads through its branches to the different parts of the heart, initiating depolarization of the ventricles. However, this highly important system could not be distinguished visually from the surrounding heart tissues: myocardium (MC) and connective tissue (CT).

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Background. Although patients with Hodgkin's lymphoma (HL) achieve prolonged survival, long-term complications are a major cause of morbidity and mortality among long-term survivors of HL. Methods.

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Functions of the antioxidative system and cytokines are important factors that can influence the development of cancer. The aim of this study was to determine gender-related differences in the concentration of inflammatory cytokine IL-18 and alterations of antioxidative system parameters after surgical treatment of renal cell carcinoma patients. The study comprised 40 patients (22 women and 18 men).

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Association of p21 Ser31Arg and p53 Arg72Pro polymorphisms with lung cancer risk in CAPUA study.

Lung Cancer (Auckl)

November 2012

Molecular Epidemiolgy of Cancer Unit, University Institute of Oncology, University of Oviedo, Oviedo, Asturias, Spain; Consortium for Research in Epidemiology and Public Health (CIBERESP), Spain.

Background: The aim of this study was to investigate how Ser31Arg polymorphisms in p21 may modify lung cancer susceptibility. Because p21 is the major downstream mediator of p53, we analyzed the combined effect of two polymorphisms, p21 Ser31Arg and TP53 Arg72Pro, to elucidate whether polymorphic variants determine the risk of lung cancer.

Methods: This was designed as a hospital-based case-control study, and included 675 cases and 675 control subjects matched by ethnicity, gender, and age.

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Triple negative breast cancer (TNBC) comprises approximately 15 to 20 per cent of all breast cancer cases. Many studies have detected less lymph node metastasis in TNBC than sporadic breast cancers. In this study, we studied capillary and lymphatic invasion in tumors of patients with TNBC.

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Genetic polymorphisms in CYP1A1, GSTM1, GSTP1 and GSTT1 metabolic genes and risk of lung cancer in Asturias.

BMC Cancer

September 2012

Molecular Epidemiology of Cancer Unit, University Institute of Oncology, University of Oviedo, C/Fernando Bongera, s/n, Oviedo, 33006, Spain.

Background: Metabolic genes have been associated with the function of metabolizing and detoxifying environmental carcinogens. Polymorphisms present in these genes could lead to changes in their metabolizing and detoxifying ability and thus may contribute to individual susceptibility to different types of cancer. We investigated if the individual and/or combined modifying effects of the CYP1A1 MspI T6235C, GSTM1 present/null, GSTT1 present/null and GSTP1 Ile105Val polymorphisms are related to the risk of developing lung cancer in relation to tobacco consumption and occupation in Asturias, Northern Spain.

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Aim: To detect subtle changes in myocardial function in pediatric cancer patients treated with high dose anthracyclines.

Methods: In all, 19 pediatric cancer patients with no cardiotoxicity findings treated with a cumulative anthracycline dose of ≥350 mg/m(2) and healthy participants of the same age were included in the study. Transthoracic echocardiography measurements, pulsed-wave tissue Doppler from the basal portions of all walls and strain and strain rate imaging of all walls from basal portion were obtained.

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Background: The aim of this study was to investigate the influence of a marker half-life (MHL) on relapse in nonseminomatous germ cell testicular tumor patients.

Methods: MHL was retrospectively analyzed in relapsed (n = 37) and nonrelapsed patients (n = 28) undergoing first-line chemotherapy (CT). Before CT and after the second cycle of CT, serum α-fetoprotein (AFP) and β-human chorionic gonadotropin levels were measured for MHL analysis.

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Worldwide, breast cancer is the most frequently diagnosed life-threatening cancer in women and the most important cause of cancer-related deaths among women. This disease is on the rise in Turkey. Metabolic syndrome is a cluster of metabolic disturbances including insulin resistance, dyslipidemia, hypertension, abdominal obesity and high blood sugar.

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Aim: To evaluate the clinical characteristics and long-term outcome of pediatric patients with optic glioma.

Patients And Methods: A total of 101 patients with optic glioma newly diagnosed between 1975 and 2008 were evaluated retrospectively. COPP (cyclophosphamide, vincristine, procarbazine, prednisolone) and cisplatin plus etoposide were the most commonly used chemotherapy regimens.

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Thrombosis in stem cell transplantation.

Hematology

April 2012

Hacettepe University Institute of Oncology, Hematopoietic Stem Cell Transplantation Unit, Ankara, Turkey.

Hemostatic changes and thrombotic events are frequent in patients undergoing stem cell transplantation. Arterial and venous thromboses are major causes of morbidity and mortality. Thrombotic complications can be classified into four groups including: catheter-related thrombosis, venous thromboembolic (VTE) events, sinusoidal obstructive syndrome (SOS)/veno-occlusive disease, and transplant-associated thrombotic microangiopathy (TAM).

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Purpose: To determine the frequency of secondary hematological malignancies in non-metastatic breast cancer (BC) patients who received adjuvant chemotherapy and radiotherapy.

Methods: Data of BC patients followed at Hacettepe University Institute of Oncology, Department of Medical Oncology between 2004 and 2010 were retrospectively analysed.

Results: There were 1,475 BC patients followed between 2004 and 2010 at our department; 1,319 (89.

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The great interest in molecular epidemiology of human papilloma virus (HPV) in cervical cancer led us to perform a thorough evaluation of 2 polymerase chain reaction (PCR)-based methods for the detection of HPV in archival formalin-fixed paraffin-embedded (FFPE) samples. Thus, the aim of this study was to compare HPV detection in FFPE samples that have histopathologic diagnosis of invasive cervical cancer using SPF10 broad-spectrum primers PCR followed by DNA enzyme immunoassay and LiPA25 (version 1: Labo Biomedical products, Rijswijk, The Netherlands version 1) and the Papillomavirus Clinical Arrays technique (Genómica, Tres Cantos, Madrid, Spain). In this study, 235 biopsies with histopathologic diagnosis of invasive cervical cancer were analyzed for the detection and genotyping of HPV by LiPA25 SPF10-PCR System (version 1) and Papillomavirus Clinical Arrays technique.

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Semiconductor nanoparticles (quantum dots) are promising fluorescent markers, but it is very little known about interaction of quantum dots with biological molecules. In this study, interaction of CdTe quantum dots coated with thioglycolic acid (TGA) with bovine serum albumin was investigated. Steady state spectroscopy, atomic force microscopy, electron microscopy and dynamic light scattering methods were used.

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Emerging drugs in metastatic breast cancer: an update.

Expert Opin Emerg Drugs

December 2011

Hacettepe University Institute of Oncology, Department of Medical Oncology, Ankara, Turkey.

Introduction: The incidence of breast cancer at an advanced stage has decreased in the modern world due to screening programs and usage of novel chemotherapy agents at an adjuvant setting. Recurrence is the major problem seen in > 50% of breast cancer patients diagnosed at an early stage. Developing new drugs for metastatic breast cancer is a huge and challenging research area.

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The conduction system of the heart is a specific muscular tissue, where a heartbeat signal originates and initiates the depolarization of the ventricles. The muscular origin makes it complicated to distinguish the conduction system from the surrounding tissues. A surgical intervention can lead to the accidental harm of the conduction system, which may eventually result in a dangerous obstruction of the heart functionality.

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Purpose: Mucinous breast carcinoma is rare subtype of breast cancer. Histopathologically, it is classified into two forms, pure and mixed type. It recurs late, metastasis to axillary lymph nodes is less common and is more hormone receptor positive.

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Purpose: Occult breast cancer is defined as axillary metastasis without clinically and/or radiologically evident primary tumor. In female patients presenting with isolated axillary nodes with adenocarcinoma, the most likely primary cancer is an invasive breast carcinoma. Herein we present our experience over this issue, together with a brief review of the literature about this clinically challenging condition.

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