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    Leyla Kilic

    e15590 Background: Total neoadjuvant therapy (TNT) integrates whole planned systemic chemotherapy within standard neoadjuvant protocols either before or after radiotherapy for locally advanced rectal cancer (LARC). Preference of... more
    e15590 Background: Total neoadjuvant therapy (TNT) integrates whole planned systemic chemotherapy within standard neoadjuvant protocols either before or after radiotherapy for locally advanced rectal cancer (LARC). Preference of neoadjuvant treatment type may vary among the medical oncologists. This study aimed to evaluate impact of professional seniority on TNT approach for LARC. Methods: A 20-item questionnaire was presented to medical oncologists as a cross-sectional survey during a national oncology congress via tablets. The evaluation was stratified by position; early-career oncologists (ECOs) and seniors. 2 questions were about experience regarding rectal cancer treatment. 5 questions were about physicians’ choice of screening and treatment in LARC and the factors affecting their treatment choices. 13 questions were about TNT approach (the sequencing of treatment, denominators of sequencing, chemotherapy choice, treatment response evaluation, operation preferences, adjuvant tr...
    While current neoadjuvant protocols have proven benefits on local control for majority of patients with locally advanced rectal cancer, there are certain clinical conditions that require future advances for improving the outcomes. Total... more
    While current neoadjuvant protocols have proven benefits on local control for majority of patients with locally advanced rectal cancer, there are certain clinical conditions that require future advances for improving the outcomes. Total neoadjuvant therapy incorporates systemic chemotherapy planned within standard neoadjuvant protocols either before or after radiotherapy for locally advanced rectal cancer as a whole. Enhanced compliance with planned oncological therapy, tumour downstaging, administration of chemotherapy at the earliest time in the disease course to help assessing chemosensitivity are the proposed benefits of total neoadjuvant therapy in patients with locally advanced rectal cancer. Patient selection criteria for administration of total neoadjuvant therapy in the recent guidelines are unclear. Since current literature is inconclusive for the optimal sequence and type of radiotherapy and chemotherapy, premature incorporation of total neoadjuvant therapy for all locall...
    Background: Non-small cell lung cancer (NSCLC) is the most common cause of cancer-related death which can present with various clinical situations. Hypopituitarism when encountered with NSCLC may be due to diverse etiologies including... more
    Background: Non-small cell lung cancer (NSCLC) is the most common cause of cancer-related death which can present with various clinical situations. Hypopituitarism when encountered with NSCLC may be due to diverse etiologies including pituitary metastasis, hypophysitis, pituitary infarction or a consequence of therapeutical interventions such as surgery or radiotherapy. Result: We present an unusual case of hypopituitarism in a NSCLC patient associated with a benign disorder, a sinus mucocele and thereby review the pathogenesis of hypopituitarism accompanying malignant diseases. Conclusion: Our case represents an example of association of a benign disorder with malignancy causing severe deterioration of life quality. Although rare, pituitary metastasis is the initial possible diagnosis in the setting of non-small cell lung cancer.
    All patients with invasive breast cancer should be evaluated for the need for adjuvant cytotoxic chemotherapy, trastuzumab, and/or endocrine therapy. When indicated, adjuvant cytotoxic chemotherapy should begin 2–8 weeks following... more
    All patients with invasive breast cancer should be evaluated for the need for adjuvant cytotoxic chemotherapy, trastuzumab, and/or endocrine therapy. When indicated, adjuvant cytotoxic chemotherapy should begin 2–8 weeks following surgery. If adjuvant endocrine (either tamoxifen or aromatase inhibitor (AI)) and cytotoxic therapy are indicated, chemotherapy should precede endocrine therapy. Older age is not a contraindication for cytotoxic chemotherapy. Lymph node positivity should not be the sole indication for adjuvant chemotherapy; however, patients with more than three involved lymph nodes, low hormone receptor positivity, HER2-positive status, triple-negative status, and a high multigene recurrence score should receive adjuvant chemotherapy.
    e15538 Background: The aim of this study was to evaluate the prognostic role of microsatellite instability (MSI) status and PD-L1 expression in surgically resected gastric cancer and the relationship of these parameters with... more
    e15538 Background: The aim of this study was to evaluate the prognostic role of microsatellite instability (MSI) status and PD-L1 expression in surgically resected gastric cancer and the relationship of these parameters with clinicopathological features. Methods: Eighty six gastric cancer patients which had curative surgical resection at Acibadem Atakent and Maslak Hospitals between 2010 and 2017 were analysed. Tumor samples were evaluated with MSI and PD-L1 antibodies by immunohistochemical (IHC) methods. PD-L1 IHC scoring was performed using the combined positive score (CPS). Survival analysis was accomplished using the Kaplan-Meier method. Cox proportional hazard regression model was used to identify independent risk factors that affect patients' overall survival. Results: The rate of PD-L1 expression in tumor cells was 34.9% (n = 30) and the frequency of PD-L1 expression in immune cells with CPS (≥1%) was 57% (n = 49). MSI-H was detected in 11.6%(n = 10), and more observed i...
    e15002 Background: Our aim was to evaluate the significance of serum inflammatory markers including serum C-reactive protein (CRP) level, erythrocyte sedimentation rate (ESR), neutrophil lymphocyte...
    203 Background: The hepatocellular carcinoma (HCC) is one of the most common malignant tumors and the absolute positive and negative markers for HCC are still lacking, and even those characterized by very high sensitivity and specificity... more
    203 Background: The hepatocellular carcinoma (HCC) is one of the most common malignant tumors and the absolute positive and negative markers for HCC are still lacking, and even those characterized by very high sensitivity and specificity do not have an universal diagnostic usefulness. The aim of this study was to assess the usefulness of serum protein and circulating mRNA of insulin-likegrowth factor-1 (IGF-1) as a diagnostic and prognostic tool in HCC. Methods: Fifty-four HCC patients were enrolled into this study. Age and sex matched 20 healthy controls were also included in the study. Serum IGF-1 levels were determined by the solid-phase sandwich ELISA method. Serum IGF-1 mRNA levels were determined by quantitative RT-PCR. Results: The median age at diagnosis was 60 years, range 16–88 years; 48 patients were men. All of patients had cirrhotic history. Fourty-six percent (n=25) of patients had Child-Pugh Score A, 30% (n=16) had Score B or C. All of the patients were preformed with...
    The primary objective of our study was to examine the clinical outcomes and prognosis of patients with metastatic renal cell carcinoma (mRCC) with brain metastases (BMs) receiving targeted therapy. Fifty-eight patients from 16 oncology... more
    The primary objective of our study was to examine the clinical outcomes and prognosis of patients with metastatic renal cell carcinoma (mRCC) with brain metastases (BMs) receiving targeted therapy. Fifty-eight patients from 16 oncology centers for whom complete clinical data were available were retrospectively reviewed. The median age was 57 years (range 30-80). Most patients underwent a nephrectomy (n = 41; 70.7%), were male (n = 42; 72.4%) and had clear-cell (CC) RCC (n = 51; 87.9%). Patients were treated with first-line sunitinib (n = 45; 77.6%) or pazopanib (n = 13; 22.4%). The median time from the initial RCC diagnosis to the diagnosis of BMs was 9 months. The median time from the first occurrence of metastasis to the development of BMs was 7 months. The median overall survival (OS) of mRCC patients with BMs was 13 months. Time from the initial diagnosis of systemic metastasis to the development of BMs (<12 months; p = 0.001), histological subtype (non-CC; p<0.05) and num...
    Breast cancer is a heterogeneous, phenotypically diverse disease comprising several biological subtypes with distinct behaviors and responses to therapy. All patients with invasive breast cancer should be evaluated to assess the need for... more
    Breast cancer is a heterogeneous, phenotypically diverse disease comprising several biological subtypes with distinct behaviors and responses to therapy. All patients with invasive breast cancer should be evaluated to assess the need for adjuvant cytotoxic therapy, trastuzumab, and/or endocrine therapy. If patients must receive endocrine therapy (either tamoxifen or aromatase inhibitor) and cytotoxic therapy as adjuvant therapy, chemotherapy should precede endocrine therapy. The pathology report must provide uniform information about the tumor and should include at a minimum the parameters recommended in the ASCO-CAP guideline. Molecular subtypes of breast cancer can be distinguished by common pathological variables, including estrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor (HER2), and Ki67 index. The inclusion of chemotherapy in the adjuvant regimen depends on the intrinsic subtype. Multigene expression array profiling is not always required for subtype definition after clinicopathological assessment. Young age, grade 3 disease, lymphovascular invasion, one to three positive nodes, and large tumor size are not adequate features to omit molecular diagnostics in the decision of adjuvant chemotherapy. Any lymph node positivity should not be a sole indication for adjuvant chemotherapy. However, patients with more than three involved lymph nodes, low hormone receptor positivity, positive HER2 status, triple-negative status, high 21-gene RS (e.g., >25), and high-risk 70-gene scores should receive adjuvant chemotherapy. A high Ki67 proliferation index and histological grade 3 tumors are acceptable indications for adjuvant chemotherapy. For women desiring fertility preservation and for patients with certain comorbidities such as cardiovascular disease and diabetic neuropathy, specific chemotherapy regimens may be preferred.
    The discrepancy between the surgical technique and the type of adjuvant chemotherapy used in clinical trials and patient outcomes in terms of overall survival rates has led to the generation of different adjuvant treatment protocols in... more
    The discrepancy between the surgical technique and the type of adjuvant chemotherapy used in clinical trials and patient outcomes in terms of overall survival rates has led to the generation of different adjuvant treatment protocols in distinct parts of the world. The adjuvant treatment recommendation is generally chemoradiotherapy in the United States, perioperative chemotherapy in the United Kingdom and parts of Europe, and chemotherapy in Asia. These options mainly rely on the United States Intergroup-0116, United Kingdom British Medical Research Council Adjuvant Gastric Infusional Chemotherapy, and the Asian Adjuvant Chemotherapy Trial of S-1 for Gastric Cancer and Capecitabine and Oxaliplatin Adjuvant Study in Stomach Cancer trials. However, the benefits were evident for only certain patients, which were not very homogeneous regarding the type of surgery, chemotherapy regimens, and stage of disease. Whether the dissimilarities in survival are attributable to surgical technique or intrinsic biological differences is a subject of debate. Regardless of the extent of surgery, multimodal therapy may offer modest survival advantage at least for diseases with lymph node involvement. Moreover, in the era of individualized treatment for most of the other cancer types, identification of special subgroups comprising those who will derive more or no benefit from adjuvant therapy merits further investigation. The aim of this review is to reveal the historical evolution and future reflections of adjuvant treatment modalities for resected gastric cancer patients.
    This chapter is focused on providing a practical approach to the allocation of available diagnostic procedures and therapies to individual patients in the light of the most recent and reliable information from clinical trials and... more
    This chapter is focused on providing a practical approach to the allocation of available diagnostic procedures and therapies to individual patients in the light of the most recent and reliable information from clinical trials and international guidelines. It reviewed substantial new evidence on locoregional and systemic therapies for early and advanced breast cancer and in situ carcinoma. In breast cancer, the choice of treatment strategy is based on the features and biology of the tumor as well as on the age, general health status, and personal preferences of the patient. The majority of breast cancer deaths now occur in less developed regions of the world. In these areas, less expensive pathology tests and treatment may be necessary. Economic considerations may require that less expensive and only marginally less effective therapies may be necessary in less-resourced areas. The gold standard for breast cancer care includes an integrated multidisciplinary team approach, comprising pathologists, radiologists, surgical oncologists, medical oncologists, radiation oncologists, oncology nurses, and plastic surgeons. This chapter comprises decision pathways outlining the step-by-step clinical decision-making process for patient management.
    Inflammatory cytokines modulate immune responses in the tumor microenvironment during progression. The role of interleukin (IL-17) in cancer is currently under debate. This study was conducted to investigate the serum levels of IL-17 in... more
    Inflammatory cytokines modulate immune responses in the tumor microenvironment during progression. The role of interleukin (IL-17) in cancer is currently under debate. This study was conducted to investigate the serum levels of IL-17 in patients with pancreatic adenocarcinoma (PA) and the relationship with tumor progression and known prognostic parameters. Thirty-five patients with PA were investigated. Serum samples were obtained on first admission before treatment and follow-up. Both serum IL-17 levels were determined using enzyme-linked immunosorbent assay (ELISA). Age- and sex-matched 35 healthy controls were included in the analysis. The median age at diagnosis was 61 years, range 38-84 years; 21 (60 %) patients were men. The tumor was located in the head of pancreas in 24 (69 %) patients. The most common metastatic site was liver in 20 patients with metastasis (n = 18, 90 %). The median follow-up time was 24.0 weeks (range 1.0-191.0 weeks). At the end of the observation period, 12 (34 %) patients experienced disease progression and 23 patients (66 %) were dead. Forty-four percent of 18 metastatic patients who received palliative chemotherapy (CTx) were CTx-responsive. Median progression-free survival and overall survival of the whole group were 13.7 ± 2.3 weeks [95 % confidence interval (CI) = 9-18 weeks] and 48.0 ± 12.8 weeks (95 % CI = 23-73 weeks), respectively. The baseline serum IL-17 levels were significantly higher in patients with PA than in the control group (p = 0.001). Moreover, serum IL-17 levels were significantly higher in the patients with large pathologic tumor status and low albumin levels (p = 0.04 and p = 0.03, respectively). However, serum IL-17 assays had no prognostic roles on outcome. Although serum levels of IL-17 assays were found to be diagnostic value, no predictive and prognostic value was determined in PA patients.
    ABSTRACT PURPOSE: To evaluate the impact of uterine cavity's ultrasound to final selected length of intracavitary tandem. The efficacy and tolerability of external beam radiation plus HDR-Ir(192) brachytherapy in our cohort of... more
    ABSTRACT PURPOSE: To evaluate the impact of uterine cavity's ultrasound to final selected length of intracavitary tandem. The efficacy and tolerability of external beam radiation plus HDR-Ir(192) brachytherapy in our cohort of patients were also estimated. MATERIALS AND METHODS: 48 women with locally advanced unresectable uterine cervix carcinoma were treated by HDR-Ir(192) endocavitary brachytherapy between January 2007 and January 2009. The median age was 63 (range 38-74). The distribution according to Federation of Gynaecology and Obstetrics (FIGO) staging system was as follows: Stage IIB, 54.16 %; IIIA, 10.4 %; IIIB, 27.0 %; and IVA, 8.3 %. HDR intracavitary brachytherapy was given weekly, beginning at the last week of whole pelvis irradiation, with a dose of 7 Gy to point A for three to four fractions. The median overall treatment time was 50 days (range 42-73 days). The median follow-up time was 2.7 years (range 3 months to 4.9 years). Multivariate analysis was performed using the Cox regression proportional hazards model. RESULTS: The complete remission rate after radiotherapy was 93.75 % (45/48). The 5-year actuarial major complication rates (Grade 3 or above) were 6.3 % overall (2.1 % proctitis, 2.1 % cystitis and 2.1 % enteritis). Estimation of the length of uterine cavity by ultrasound helped decisively in the proper placement of the intrauterine tandem inserted. CONCLUSIONS: Prior knowledge of the length of uterine cavity can facilitate the decisions regarding the proper insertion length of the tandem. Results of cervical cancer treatment with external beam radiation and HDR intracavitary brachytherapy in our hospital are encouraging.
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    Background: The distribution of hereditary breast and ovarian cancer in Turkish population has been reported in earlier publications. However, the regional distributions of breast cancer and/or BRCA1/2 gene mutations frequency are not... more
    Background: The distribution of hereditary breast and ovarian cancer in Turkish population has been reported in earlier publications. However, the regional distributions of breast cancer and/or BRCA1/2 gene mutations frequency are not known for Balkan Turks who came to Turkey for the forced migration in 1989 and for general Turkish populations in Turkey. Materials and Method: We recruited 401 patients with a family history of breast and/or ovarian cancers, and 126 early-onset breast cancer cases below age 40 with/without a family history of cancer between 1994-2013. These patients were referred to Cancer Genetics Department of Oncology Institute in University of Istanbul. Families were selected from consecutive referrals to the above-listed hospital meeting specific family-history criteria (either multiple cases of breast and or ovarian cancer in the family or the presence of an individual with a young age at diagnosis). Mean age of patients in the study was 41, 18±10, 24. Results: The distributions of patients participating in the study were evaluated in total 8 groups such as seven geographic regions of Turkey and the Balkan Turks. Overall frequency of BRCA1/2 gene mutations in Turkish population was 10%. The distribution of patients according to 8 groups were 26.6% in the Black Sea Region, 21.5% in the Marmara Region, 17.6% in the Eastern Anatolia Region, 8.6% in Central Anatolia, 3.1% in Aegean Region, 3.9% in the Mediterranean region, 2.7% in South Eastern Anatolia and 16% in Balkan Turks. BRCA1 and BRCA2 positivity was evaluated in the study groups: BRCA1/2 mutations ratio were 20% in the Black Sea Region, 16% in the Marmara Region, 20% in the Eastern Anatolia Region, 12% in Central Anatolia, % 4 in Aegean Region and 28% in the Balkan Turks. None of mutations in both genes were found in the patients participating in the study from South Eastern Anatolia and the Mediterranean regions. The observed BRCA1/2 mutations rate was found almost two-fold according to the expected mutation rate in the group of Balkan Turks. The highest breast cancer rates were seen in the city of Giresun in the Black Sea Region and in the city of Malatya in the Eastern Anatolia Region, respectively. Conclusions: In our study, breast cancer was more frequent in the regions which were the Black Sea, the Marmara, Eastern Anatolia and the Balkan Turks group. Although the Marmara region was industrialized, Bulgaria where Balkan Turks lived before forced-migration and the Black Sea Region are not industrialized areas. However, in 1986, these regions were the most affected by the Chernobyl disaster and these interactions was described with scientific data. Therefore, it might be concluded that the high rates of breast cancer are associated with the Chernobyl disaster in these regions. In the study, BRCA1/2 gene mutation rates were examined in Balkan Turks who came to Turkey by forced-migration after Chernobyl disaster. In the group of Balkan Turks, almost two fold expected incidence for BRCA1/2 gene mutations was observed. The investigated society was a small community living as a minority in Bulgaria. Therefore, it was suggested that the society was isolated as a nature and has been had high BRCA1/2 mutations rate. On the other hand, in the study, BRCA1/2 gene mutations and clinical/pathological data were also compared and survival analysis was performed in the general Turkish population. The diagnosis age for breast cancer was found 10 years earlier when compared to the other populations (p Citation Format: Demet Akdeniz, Bugra S. Tuncer, Seda Kilic, Ozge Sukruoglu, Leyla Kilic, Kevser Altundag, Rumeysa Ciftci, Sevda Ozel, Senem Karabulut, Meltem Ekenel, Pinar Saip, Hasan Karanlik, Neslihan Cabioglu, Hulya Yazici. Distribution and frequency of BRCA gene mutations in Turkish population including Balkan Turks. [abstract]. In: Proceedings of the AACR Special Conference: Cancer Susceptibility and Cancer Susceptibility Syndromes; Jan 29-Feb 1, 2014; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(23 Suppl):Abstract nr 43. doi:10.1158/1538-7445.CANSUSC14-43
    Fasting during the holy month of Ramadan is one of the major obligations for all adult Muslims. We performed a survey of Turkish Muslim cancer patients to examine the extent of their fasting status and to compare various clinical... more
    Fasting during the holy month of Ramadan is one of the major obligations for all adult Muslims. We performed a survey of Turkish Muslim cancer patients to examine the extent of their fasting status and to compare various clinical characteristics of fasting and non-fasting cancer patients during the month of Ramadan. This study was conducted on 701 adult cancer patients who attended ambulatory patient care units answered the questionnaires. The population comprised 445 women (63.5%), and the median age was 54 years. Before diagnosis of cancer, 93.1% of the patients used fast consists of completely (78.3%) and partial (14.8%). However, 15% of cases were fasting on the day of interview, either partially (7.4%) or completely (7.6%) with equal distributions. Patients who were females, those with good performance status, those without any comorbid disease, who had non-metastatic disease, those with history of surgery, those treated with radiotherapy and those being treated with oral chemo...
    The aim of this study is to evaluate the correlation of coagulation tests with various clinicopathological variables and tumor markers among colorectal cancer (CRC) patients. Ninety-four CRC patients were included for evaluation of... more
    The aim of this study is to evaluate the correlation of coagulation tests with various clinicopathological variables and tumor markers among colorectal cancer (CRC) patients. Ninety-four CRC patients were included for evaluation of clinicopathological factors, coagulation assays and tumor marker levels. Metastatic disease was related with elevated INR (p=0.03). Stage III patients had higher D-dimer values compared with stage II patients (p=0.03). Correlation of tumor markers indicated a tendency towards elevated D-dimer levels for CEA values higher than median (p=0.01). High CA 19-9 levels were also associated with higher INR (p=0.007). Elderly age, distant metastasis, high CEA, CA-19-9 and LDH levels were associated with poorer overall-survival. CEA level was the only independent prognostic factor in multivariate analysis. Coagulation assays can be utilized as predictors of disease extent in CRC. Elevated D-dimer and INR values may indicate higher disease stage. Correlation of D-di...
    Pancreatic cancer is a major health concern worldwide and, despite the attempts at management, the prognosis of patients with metastatic pancreatic cancer remains poor, with a median survival of a few months. The aim of this study was to... more
    Pancreatic cancer is a major health concern worldwide and, despite the attempts at management, the prognosis of patients with metastatic pancreatic cancer remains poor, with a median survival of a few months. The aim of this study was to identify and evaluate clinicopathological factors and elucidate the clinical significance of patient age for the outcome of metastatic pancreatic cancer. Data from a total of 154 metastatic patients with a histologically confirmed diagnosis of pancreatic cancer, who were treated and followed-up in our clinic, were recorded from medical charts. The patient sample included 102 (66%) males with a median age of 58 years (range, 25-88 years). The majority of the patients had a poor performance status (64%), weight loss of >10% body weight (74%), tumor size of >3 cm (75%) and elevated tumor markers, including carcinoembryonic antigen (CEA) (66%) and carbohydrate antigen 19-9 (CA19-9) (85%). The distributions of prognostic factors depending on patien...
    Anorectal malignant melanoma (AMM) is a rare tumor with a poor prognosis. The aim of this study was to investigate the clinicopathological characteristics and treatment outcomes in patients with AMM. The study included 21 patients... more
    Anorectal malignant melanoma (AMM) is a rare tumor with a poor prognosis. The aim of this study was to investigate the clinicopathological characteristics and treatment outcomes in patients with AMM. The study included 21 patients diagnosed with AMM between 2000 and 2010 that were evaluated with regard to age, sex, disease stage, treatment modality, and survival. Stage I, II, and III were defined as localized primary malignant melanoma, regional lymph node metastasis, and distant metastasis, respectively. In all, 12 (57%) patients were female and 9 (43%) were male ; median age was 61 years (range : 30-84 years). Among the 21 patients, 7 (47%) underwent abdominoperineal resection and 8 (53%) were treated using wide local excision. Four (19%) patients were classified as stage I, 10 (48%) as stage II, and 7 (33%) patients as stage III. In total, 10 patients received adjuvant therapy. Median overall and progression-free survival was 12 and 9 months, respectively. The 1-year and 5-year o...
    To determine whether beta-blockers (BBs) improve the overall survival (OS) of patients with metastatic non-small cell lung cancer (NSCLC). The medical charts of 107 patients with metastatic NSCLC were retrospectively assessed. Thirty-five... more
    To determine whether beta-blockers (BBs) improve the overall survival (OS) of patients with metastatic non-small cell lung cancer (NSCLC). The medical charts of 107 patients with metastatic NSCLC were retrospectively assessed. Thirty-five patients (BB group) using BBs during chemotherapy (CT) were compared with 72 controls [control=(C) group] who did not use BBs following the diagnosis of NSCLC. The histological tumor subtype, performance status (ECOG), age, gender, smoking status, comorbidities, other medications and chemotherapeutics that were received in any line of treatment were recorded. We compared the overall survival (OS) of the patients in the BB and C groups. The mean age of the patients was 61 years (range 42-81 years) and all patients were administered CT. The BB group was more likely to have HT and IHD and was more likely to use RAS blockers (p<0.01 for all) compared with the C group, as expected. The mean follow-up time was 17.8 months (range 1-102 months) for the ...
    Despite all efforts at management, prognosis of advanced lung cancer is extremely poor, with a median survival time of ~1 year. The number of cancer patients aged >70 years is significantly increased among the cancer patient... more
    Despite all efforts at management, prognosis of advanced lung cancer is extremely poor, with a median survival time of ~1 year. The number of cancer patients aged >70 years is significantly increased among the cancer patient population. The aim of this study was to investigate the clinical importance of age in lung cancer. Data from 110 patients with histologically confirmed lung cancer, who were treated and followed up in the Institute of Oncology, University of Istanbul, were recorded from medical charts. There were 100 (91%) males with a median age of 59 years (range, 35-88 years). The majority of patients had non-small cell lung cancer (NSCLC; 84%) and metastatic stage (56%). The rate of positive response to chemotherapy was lower in elderly patients (P=0.01) and the incidence of anemia was higher compared with that in younger patients (P=0.02). The majority of mortalities occurred in elderly patients (P=0.01). The median survival time of elderly patients was significantly lo...
    Hypertension is one of the major side effects of sunitinib, an angiogenesis inhibitor used in the treatment of metastatic renal cell carcinomas (mRCC) and gastrointestinal stromal tumors (GIST). Endothelial dysfunction, an early and... more
    Hypertension is one of the major side effects of sunitinib, an angiogenesis inhibitor used in the treatment of metastatic renal cell carcinomas (mRCC) and gastrointestinal stromal tumors (GIST). Endothelial dysfunction, an early and reversible event in the pathogenesis of atherosclerosis, is suggested to be one of the possible underlying mechanisms of hypertension caused by angiogenesis inhibitors. Coronary flow reserve (CFR) measurement by trans-thoracic Doppler echocardiography (TTDE) reflects coronary microvascular and endothelial functions, as a cheaper and an easy screening test. We have used TTDE to evaluate endothelial function and coronary microvascular function in mRCC and GIST patients under sunitinib treatment. Eighteen metastatic cancer patients (16 mRCC and 2 GIST) on sunitinib treatment and 27 healthy subjects were enrolled in this cross-sectional study. Thyroid stimulating hormone (TSH), lipid profile, creatinine, hemoglobin, glucose, C-reactive protein (CRP), erythro...
    We investigated the prognostic clinicopathologic factors associated with overall survival (os) and progression-free survival (pfs) in the once-daily continuous administration of first-line sunitinib in a consecutive cohort of Turkish... more
    We investigated the prognostic clinicopathologic factors associated with overall survival (os) and progression-free survival (pfs) in the once-daily continuous administration of first-line sunitinib in a consecutive cohort of Turkish patients with metastatic renal cell carcinoma (rcc). The study enrolled 77 Turkish patients with metastatic rcc who received sunitinib in a continuous once-daily dosing regimen between April 2006 and April 2011. Univariate analyses were performed using the log-rank test. Median follow-up was 18.5 months. In univariate analyses, poor pfs and os were associated with 4 of the 5 factors in the Memorial Sloan-Kettering Cancer Center (mskcc) score: Eastern Cooperative Oncology Group performance status of 2 or higher, low hemoglobin, high corrected serum calcium, and high lactate dehydrogenase. In addition to those factors, hypoalbuminemia, more than 2 metastatic sites, liver metastasis, non-clear cell histology, and the presence of sarcomatoid features on pat...
    To investigate the efficacy and tolerability of biweekly scheduled triplet chemotherapy consisting of gemcitabine, cisplatin and vinorelbine for chemotherapy-naïve advanced non-small cell lung cancer. Patients with stage IIIB/IV non-small... more
    To investigate the efficacy and tolerability of biweekly scheduled triplet chemotherapy consisting of gemcitabine, cisplatin and vinorelbine for chemotherapy-naïve advanced non-small cell lung cancer. Patients with stage IIIB/IV non-small cell lung cancer and performance status of 0-2 were eligible. Patients who had brain metastasis and of an older age were also enrolled in the study. The triplet combination chemotherapy consisted of gemcitabine, cisplatin and vinorelbine at the doses of 1000 mg/m(2), 25 mg/m(2) and 50 mg/m(2), respectively, were administered on day 1 and 14, every 28 days, up to 6 cycles. Thirty patients were enrolled in the study. Median age was 60 years (range, 42-74). Most of the patients (83%) had metastatic disease and 7 patients (23%) had brain metastasis. In assessing 24 patients for response evaluation, none had complete response. Partial responses were achieved in 18 (60%) patients. Four patients (13%) had stable disease and 2 (7%) progressed. Thirteen per...
    Amaç: Bu çalışmada poliklinik hasta popülasyonunda B12 vitamini eksikliğinin özellikleri ve kolaylaştırıcı faktörlerin değerlendirilmesi amaçlanmıştır. Gereç ve Yöntemler: Vitamin B12 eksikliği saptanan 400 hasta incelendi. Antropometrik... more
    Amaç: Bu çalışmada poliklinik hasta popülasyonunda B12 vitamini eksikliğinin özellikleri ve kolaylaştırıcı faktörlerin değerlendirilmesi amaçlanmıştır. Gereç ve Yöntemler: Vitamin B12 eksikliği saptanan 400 hasta incelendi. Antropometrik ölçümler (boy, kilo, beden kitle indeksi) ve ...
    Activation of coagulation and fibrinolysis is frequently found among cancer patients. Such tumors are considered to be associated with a higher risk of invasion, metastases, and eventually, worse outcome. The aim of this study is to... more
    Activation of coagulation and fibrinolysis is frequently found among cancer patients. Such tumors are considered to be associated with a higher risk of invasion, metastases, and eventually, worse outcome. The aim of this study is to explore the clinical and prognostic value of blood coagulation tests in gastric cancer (GC) patients. A total of 44 consecutive patients with a pathologically confirmed diagnosis of GC were enrolled into the study. Pretreatment blood coagulation tests including prothrombin time (PT), activated partial thromboplastin time (APTT), international normalized ratio (INR), D-dimer (DD), fibrinogen (F) levels, and platelet (PLT) counts were evaluated. Control group comprised 50 age- and sex-matched individuals without history of malignancy and coagulation disorder. Median age at diagnosis was 55 years, range 19-80 years; most had men (n = 32, 73 %) and metastatic disease (n = 31, 70 %). The level of blood coagulation tests showed a statistically significant difference between the patient and the control groups (P < 0.001 for all, but p = 0.07 for PT). DD levels were significantly associated with elevated PLT and LDH levels (p = 0.009 and p = 0.01, respectively). Patients with metastatic disease had higher levels of F (p = 0.001) and INR (p = 0.027) levels. Elevated DD levels tended to be a poor prognostic factor on outcome (p = 0.06). Change in almost all coagulation tests are found in GC patients and only DD level seems to be of prognostic value.
    Effective cancer biomarkers for early detection, prognosis, or therapy response prediction are urgently need in metastatic RCC. M30 and M65 are released during apoptotic cell death and precisely reflect epithelial tumor cell death. The... more
    Effective cancer biomarkers for early detection, prognosis, or therapy response prediction are urgently need in metastatic RCC. M30 and M65 are released during apoptotic cell death and precisely reflect epithelial tumor cell death. The aim of this study was to determine the prognostic value of plasma M30 and M65 levels in predicting survival rates for patients with metastatic RCC. Thirty-nine patients with metastatic RCC and 39 healthy control subjects were included in this study. Serum M30 and M65 levels were measured by ELISA. The median ages of the patients and control subjects were 60 and 58 years, respectively. No difference was detected in the median serum M30 level between the patients and control subjects (53.7 vs. 49.1 U/L; P = .31). The median serum M65 level was significantly higher in patients than in control subjects (334.0 vs. 179.1 U/L; P < .001). Receiver operating characteristic analysis revealed that the best cutoff value for serum M65 level for predicting progression-free survival (PFS) was 313.6 U/L. The median PFS of patients whose M65 levels were ≤ 313.6 U/L was better than that of patients whose M65 levels were > 313.6 U/L (P = .03). To the best of our knowledge, this is the first study to evaluate serum M30 and M65 levels in patients with RCC. Serum M65 levels were significantly elevated in patients with metastatic RCC compared with healthy individuals. In addition, the serum M65 level could be predictive of PFS in patients with RCC.
    The transforming growth factor beta 1 (TGFB1) is a regulatory cytokine with both tumor suppressor and tumor-promoting effects in breast cancer (BC) cell lines and tissue. Data about level of circulating TGFB1 and its prognostic... more
    The transforming growth factor beta 1 (TGFB1) is a regulatory cytokine with both tumor suppressor and tumor-promoting effects in breast cancer (BC) cell lines and tissue. Data about level of circulating TGFB1 and its prognostic significance in BC patients is conflicting. The objective of this study is to determine the clinical significance of the serum TGFB1 levels in BC patients. We enrolled 96 female patients with histopathologically diagnosed BC who did not receive chemotherapy (CT) or radiotherapy. Serum TGFB1 levels were measured by ELISA method and compared with 30 healthy controls. The mean serum TGFB1 level of BC patients was significantly higher than controls (0.08 vs. 0.04 ng/ml, p < 0.001). There was no significant difference according to known disease-related clinicopathological or laboratory parameters. Serum TGFB1 level had a significant impact on overall survival in both univariate (p = 0.01) and multivariate analysis (p = 0.013). Serum TGFB1 level is elevated in BC patients and has a favorable prognostic value. However, it has no predictive role on CT response.
    Choroidal metastasis is a very rare clinical manifestation of thyroid cancer. Herein, we report on a patient with non-familial medullary thyroid carcinoma (MTC), who presented with choroidal metastasis. A 63-year-old male patient with MTC... more
    Choroidal metastasis is a very rare clinical manifestation of thyroid cancer. Herein, we report on a patient with non-familial medullary thyroid carcinoma (MTC), who presented with choroidal metastasis. A 63-year-old male patient with MTC presented with sudden loss of vision in his right eye for 1 month. The patient had a history of complete thyroidectomy and chemotherapy for disseminated MTC. Ophthalmological examination showed optic disc and choroidal metastases in the right eye and a small choroidal metastasis in the left eye. The patient was scheduled for external irradiation therapy for the ocular area but died 2 months after choroidal metastasis was diagnosed. Choroidal metastasis must be considered in MTC patients who develop loss of vision. This is a very rare clinical situation that generally occurs in the late advanced stages of the disease and carries a poor prognosis for these patients.
    The activation of coagulation and fibrinolysis is frequently found among cancer patients. Such tumors are considered to be associated with a higher risk of invasion, metastases, and eventually worse outcome. The aim of this study is to... more
    The activation of coagulation and fibrinolysis is frequently found among cancer patients. Such tumors are considered to be associated with a higher risk of invasion, metastases, and eventually worse outcome. The aim of this study is to explore the clinical and prognostic value of blood coagulation tests for melanoma patients. Pretreatment blood coagulation tests including prothrombin time (PT), activated partial thromboplastin time (APTT), prothrombin activity (PTA), international normalized ratio (INR), D-dimer (DD), fibrinogen (F) levels, and platelet (PLT) counts were carried out. This prospective study included 61 melanoma patients [stage I-II (n=10), stage III (n=14), stage IV (n=37), M1c (n=26) disease], and 50 healthy controls. It included 34 (56%) men, median age 53 years, range 16-88 years. Over half of the patients (54%) were in the metastatic stage and most of them (70%) had M1c. The plasma level of pretreatment blood coagulation tests including DD, F, APTT, INR levels, and PLT counts showed a statistically significant difference between the patient and the control group (P<0.001 for all, but P=0.049 for INR). The levels of INR, DD, F, and PLT counts were higher and APTT was lower in the melanoma group, whereas the PT and PTA levels did not show any significant difference. There was a significant association between PT, PTA, INR, and PLT levels and the age of the patient. Patients with node metastasis in M0 disease had higher levels of PTA and PLT counts (P=0.002 and 0.048, respectively) and lower levels of PT and INR (P=0.056 and 0.046, respectively). The M1c patients tended to have higher plasma F levels (437 vs. 297 mg/dl, P=0.055) than M1a and M1b patients. The 1-year survival rate for all patients was 70%. In association with distant metastasis, advanced metastatic stage (M1c), elevated lactate dehydrogenase, and erythrocyte sedimentation rate, only elevated plasma F levels had a significantly adverse effect on survival among the coagulation parameters (P=0.031). The 1-year survival rates for patients with high and normal F levels were 58 and 88%, respectively. In conclusion, changes in the coagulation-fibrinolytic system are often present in melanoma and elevation in the plasma F level is associated with decreased survival.
    Classic Kaposi's sarcoma (CKS) affects an elderly population; it is important to have effective treatment options with high activity and relatively low toxicity, and availability to be used for long periods. We... more
    Classic Kaposi's sarcoma (CKS) affects an elderly population; it is important to have effective treatment options with high activity and relatively low toxicity, and availability to be used for long periods. We investigated the activity and safety of single-agent etoposide with an oral administration schedule in patients with advanced CKS. Histologically confirmed, CKS patients were eligible for study. All had a negative test for HIV and good performance status. All patients received oral etoposide 50 mg twice daily for 10 days every 3 weeks. Thirty patients (median age 66 and 22 males) were enrolled into the study. The majority of them had non-metastatic, local advanced disease and symptoms in nearly half of patients. Complete and partial responses were observed in 10% and 77% of patients, respectively, giving an overall response rate of 87%. Stable disease occurred in the other 13% of patients. Treatment was well tolerated. Grade IV toxicity was not observed. Haematological toxicity was the principal dose-limiting side effect. Severe leucopaenia and neutropaenia were observed in 7% and 10% of patients respectively. No patient was complicated by febrile neutropaenia. Mild-moderate anaemia observed frequently, but only 3% of patients had severe anaemia and severe thrombocytopaenia was not observed. The 5-year overall survival rate was 92%. Single-agent oral etoposide is an effective treatment option and is acceptably toxic and easily administered. Therefore, we recommend the single agent of oral etoposide as the first-line chemotherapy for advanced CKS.
    Choroidal metastasis is a very rare clinical manifestation of thyroid cancer. Herein, we report on a patient with non-familial medullary thyroid carcinoma (MTC), who presented with choroidal metastasis. A 63-year-old male patient with MTC... more
    Choroidal metastasis is a very rare clinical manifestation of thyroid cancer. Herein, we report on a patient with non-familial medullary thyroid carcinoma (MTC), who presented with choroidal metastasis. A 63-year-old male patient with MTC presented with sudden loss of vision in his right eye for 1 month. The patient had a history of complete thyroidectomy and chemotherapy for disseminated MTC. Ophthalmological examination showed optic disc and choroidal metastases in the right eye and a small choroidal metastasis in the left eye. The patient was scheduled for external irradiation therapy for the ocular area but died 2 months after choroidal metastasis was diagnosed. Choroidal metastasis must be considered in MTC patients who develop loss of vision. This is a very rare clinical situation that generally occurs in the late advanced stages of the disease and carries a poor prognosis for these patients.
    Epithelial ovarian cancer (EOC) is the leading cause of death among gynecological tumors and usually diagnosed at advanced stage. We aimed to identify the clinical and prognostic relevance of coagulation tests and their correlation with... more
    Epithelial ovarian cancer (EOC) is the leading cause of death among gynecological tumors and usually diagnosed at advanced stage. We aimed to identify the clinical and prognostic relevance of coagulation tests and their correlation with serum CA-125 levels in advanced EOC. A total of 33 advanced-stage (stages III and IV) EOC patients were enrolled in the study. Of these patients, 17 had received neoadjuvant chemotherapy and 16 patients received chemotherapy after optimal debulking surgery. Several clinicopathologic factors, coagulation assays, routine biochemistry tests, and serum CA-125 levels were evaluated before treatment and compared with healthy subjects. All coagulation tests including prothrombin time (PT), activated partial thromboplastin time, international normalized ratio, fibrinogen, D-dimer, and platelet revealed statistically significant difference between patients and control subjects (P ≤ 0.001). Elevated CA-125 levels were correlated with higher D-dimer values (P = 0.03). Prolonged PT was associated with poorer both overall (P = 0.03) and progression-free survival rates (P = 0.04). Correlation of CA-125 with D-dimer is supposed to reflect hyperactivation of fibrinolytic pathway in the presence of a higher tumor load. Alterations in coagulation pathway reflected by prolonged PT support prognostic effects on survival of advanced-stage EOC patients.

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