Publications by authors named "Cem Boruban"

Background: The efficacy and safety of the lapatinib and capecitabine combination remain elusive in elderly patients with metastatic breast cancer (MBC), who progress after trastuzumab-based therapy.

Patients And Methods: A total of 26 patients with HER2-positive MBC were included in this retrospective multicenter study. Median age was 69 years (range 65-82 years).

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There is very little information about breast cancer characteristics, treatment choices, and survival among elderly patients. The purpose of this multicenter retrospective study was to examine the clinical, pathologic, and biologic characteristics of 620 breast cancer patients age 70 years or older. Between June 1991 and May 2012, 620 patients with breast cancer, recruited from 16 institutions, were enrolled in the retrospective study.

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Lapatinib is the first dual tyrosine kinase inhibitor of human epidermal growth factor receptor type 2 (HER2/neu) and epidermal growth factor receptor (EGFR). The present study evaluated the efficacy and tolerability of the combination of lapatinib and capecitabine in patients with metastatic breast cancer (MBC) who progressed after therapy with trastuzumab, a taxane and/or anthracycline. A total of 203 patients with a median age of 48 years (range: 25-82 years) were evaluated retrospectively in 11 centres between September 2007 and May 2011.

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Unlabelled: Several studies have now demonstrated that the lymph node ratio (LNR), as a superior indicator of axillary tumor burden to the number of excised nodes. While, about the prognostic value of LNR on the the survival of elderly patients is limited. The aim of this retrospective multicenter study is to evaluate the prognostic value of lymph node ratio in elderly patients with node positive breast cancer.

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Purpose: In this study, we investigated the effect of lapatinib plus capecitabine treatment in HER2-positive breast cancer patients with brain metastasis.

Methods: Of 405 metastatic breast cancer patients with brain metastases at referral centers in Turkey, 46 were treated with lapatinib plus capecitabine only after the development of brain metastasis. Patients who only received trastuzumab-based therapy after the development of brain metastases were accepted as the historic control group for survival analyses (n = 65).

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Article Synopsis
  • * Out of 203 patients analyzed, 85 had brain metastases, and after treatment, 27.1% showed positive responses, with a median progression-free survival of 7 months and overall survival of 13 months.
  • * Common side effects included hand-foot syndrome and nausea, but the treatment was generally well-tolerated, and no serious heart issues were reported.
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Background: The aim of this study is to determine the relationship between the survival outcomes and biological subtype in breast cancer patients with brain metastases.

Methods: We retrospectively evaluated clinical data from 422 breast cancer patients with brain metastases between 2001 and 2011 from referral centers in Turkey. The study population was divided into four biological subtypes according to their hormone receptor status and HER2 expression.

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Objectives: The 5-hydroxytryptamine 3 receptor antagonists, including tropisetron, ondansetron, granisetron, and dolasetron are agents used effectively for supportive care. They are used for the prevention and treatment of chemotherapy and radiotherapy-induced emesis. Despite their overall excellent safety profile, some electrocardiographic changes related to heart rate and repolarization were reported.

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Total surgical excision of the tumor is considered to be the only hope in treatment of malignant mesenchymal tumors. The roles of radiotherapy and/or chemotherapy have not yet been established. We report here a case of metastatic gastrointestinal stromal tumors with a dramatic long duration of response after treatment with concurrent radiotherapy and imatinib mesylate.

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We report a rare case of synchronous presentation of nasopharyngeal and renal cell carcinomas in a-50-year old male patient with long standing smoking history. The patient was initially presented with a diagnosis of nasopharyngeal carcinoma. During staging process, the abdominal computed tomography detected a right renal solid mass, 6.

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Drug interactions have been reported between 5-fluorouracil and cytochrome P450 2C9 (CYP2C9) substrates, S-warfarin and phenytoin. This study was performed to determine the influence of 5-fluorouracil on cytochrome P450 2C9 (CYP2C9) activity in colorectal cancer patients (n=17) receiving 5-fluorouracil. Losartan was used as a marker to assess CYP2C9 activity.

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Background: Since multiple myeloma responds poorly to conventional chemotherapy or radiotherapy, new therapeutic approaches are needed. This study investigated the effects of dexamethasone, all-trans retinoic acid (ATRA), the active metabolite of vitamin D(3) [1,25(OH)(2)D(3)] and interferon-alpha on FO mouse myeloma cells (non-immunoglobulin-secreting myeloma cell line) in single drug or drug combination groups in vitro.

Methods: Apoptosis ratio and change in cell counts in 4 single drug groups (dexamethasone, ATRA, vitamin D(3) and interferon-alpha) and 6 combination drug groups (dexamethasone + vitamin D(3,) dexamethasone + ATRA, dexamethasone + interferon-alpha, vitamin D(3) + ATRA, vitamin D(3) + interferon-alpha, interferon-alpha + ATRA) were compared with the control group.

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