24 results on '"Hacıbekiroğlu İ"'
Search Results
2. 252P Impact of HER2 expression levels on survival in patients with hormone receptor positive and HER2 negative advanced breast cancer and treated with ribociclib and palbociclib in combination with endocrine therapy: A real-life data, Turkish Oncology Group study
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Kahraman, S., Seyyar, M., Sahin, E., Cabuk, D., Gumusay, O., Basaran, G., Hizal, M., Yasar, A., Bayoglu, I.V., Bayram, E., Paydas, S., Gulbagci, B., Hacibekiroglu, I., Demirel, B. Cakan, Yaren, A., Ozcelik, M., Yılmaz, F., Paksoy, N., Aydiner, A., and N. Sendur, M.A.
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- 2023
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3. The efficacy of a computer alert programme for increasing HBV screening rates before starting immunosuppressive therapy.
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Köksal, A. S., Toka, B., Eminler, A. T., Hacıbekiroğlu, İ., Sunu, C., Uslan, M. İ., Karabay, O., and Parlak, E.
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- 2019
4. P3.01-33 EGFR Mutation in Patients with NSCLC and Its Relationship Between Survival and Clinicopathological Features: An Update Analysis
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Ozturk, A., Celik, S., Kodaz, H., Yildiz, I., Ocak, A., Hacibekiroglu, I., Bayoglu, I.V., Ercelep, O., Ekinci, A.S., Menekse, S., Gumusay, O., Oven, B., Aldemir, M.N., Geredeli, C., Baykara, M., Uysal, M., Sevinc, A., Aksoy, A., Ulas, A., Inanc, M., Tanriverdi, O., Avci, N., Turan, N., and Gumus, M.
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- 2018
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5. In vitrobiological activities and fatty acid profiles ofPistacia terebinthusfruits andPistacia khinjukseeds
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Hacıbekiroğlu, I¸ıl, primary, Yılmaz, Pelin Köseoğlu, additional, Ha¸imi, Nesrin, additional, Kılınç, Ersin, additional, Tolan, Veysel, additional, and Kolak, Ufuk, additional
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- 2014
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6. Aflatoxins in various food from Istanbul, Turkey
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Hacıbekiroğlu, I., primary and Kolak, U., additional
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- 2013
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7. In vitro biological activities and fatty acid profiles of Pistacia terebinthus fruits and Pistacia khinjuk seeds.
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Hacıbekiroğlu, I¸ıl, Yılmaz, Pelin Köseoğlu, Ha¸imi, Nesrin, Kılınç, Ersin, Tolan, Veysel, and Kolak, Ufuk
- Abstract
This study reports in vitro anticholinesterase, antioxidant and antimicrobial effects of the n-hexane, dichloromethane, ethanol and ethanol–water extracts prepared from Pistacia terebinthus L. fruits and Pistacia khinjuk Stocks seeds as well as their total phenolic and flavonoid contents, and fatty acid compositions. Ethanol and ethanol–water extracts of both species exhibited higher anticholinesterase activity than galanthamine. Among ABTS, DPPH and CUPRAC assays, the highest antioxidant capacity of the extracts was found in the last one. P. terebinthus ethanol extract being rich in flavonoid content showed the best cupric reducing effect. All extracts possessed no antimicrobial activity. The main fatty acid in P. terebinthus fruits (52.52%) and P. khinjuk seeds (59.44%) was found to be oleic acid. Our results indicate that P. terebinthus fruits and P. khinjuk seeds could be a good source of anticholinesterase compounds, and could be phytochemically investigated. [ABSTRACT FROM AUTHOR]
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- 2015
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8. Sorafenib vs chemotherapy in the treatment of locally advanced or metastatic, radioactive iodine-refractory differentiated thyroid cancer: real-world data from Turkey.
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Majidova N, Aghamaliyeva S, Guliyev M, Dinc G, Akyıldız A, Ozcan E, Akdağ Kahvecıoglu F, Çağrı Yıldırım H, Sever N, Guren AK, Kocaaslan E, Erel P, Agyol Y, Celebi A, Arıkan R, Isık S, Bayoglu IV, Demirci NS, Dizdar Ö, Hacıbekiroğlu I, Kostek O, and Sarı M
- Abstract
Managing locally advanced, or metastatic radioactive iodine-refractory differentiated thyroid cancers (RAIR-DTC) poses substantial challenges, with few available treatment options. The aim of this study was to evaluate clinical outcomes of patients receiving sorafenib as first line treatment. In addition, prognostic markers affecting progression-free survival (PFS) were identified. This retrospective, 6 centers study included 62 patients with locally advanced or RAIR-DTC treated 2008-2023. The median PFS was 16.5 months. The presence of liver metastases was strongly associated with a lower PFS (3.1 months ( p < 0.001)). The use of sorafenib as initial treatment resulted longer PFS compared to chemotherapy, with a median of 25.5 vs 4.7 months respectively ( p = 0.01). Increased neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) were associated with worse outcomes ( p = 0.01; p = 0.009, respectively). In conclusion, sorafenib has demonstrated significant PFS benefits when used as first-line treatment. It has been shown that the presence of liver metastases and higher levels of NLR and PLR are associated with a more unfavorable prognosis.
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- 2024
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9. The prognostic impact of Her2 status in early triple negative breast cancer: a Turkish Oncology Group (TOG) study.
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Özyurt N, Alkan A, Gülbağcı B, Seyyar M, Aydın E, Şahbazlar M, Türker M, Kınıkoğlu O, Yerlikaya T, Dinç G, Aytaç A, Kalkan Z, Ebinç S, Gültürk İ, Keskinkılıç M, İşleyen ZS, Çağlayan D, Türkel A, Aydın E, Şakalar T, Sekmek S, Yıldırım N, Koçak S, Okutur K, Özveren A, Dursun B, Kitaplı S, Eren OÖ, Beypınar İ, Hacıbekiroğlu İ, Çabuk D, Karaman E, Acar Ö, Paydaş S, Eryılmaz MK, Demir B, Oruç Z, Yılmaz M, Biricik FS, Salim DK, Tanrıverdi Ö, and Doğan M
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- Humans, Female, Middle Aged, Prognosis, Adult, Turkey, Retrospective Studies, Aged, Disease-Free Survival, Biomarkers, Tumor genetics, Biomarkers, Tumor metabolism, Triple Negative Breast Neoplasms genetics, Triple Negative Breast Neoplasms pathology, Triple Negative Breast Neoplasms mortality, Triple Negative Breast Neoplasms drug therapy, Receptor, ErbB-2 metabolism, Receptor, ErbB-2 genetics, Neoadjuvant Therapy
- Abstract
The studies evaluating the impact of Her2 levels in neoadjuvant setting have conflicting data. The aim of the study was to evaluate the prognostic impact of Her2 status in early triple negative breast cancer(TNBC). In the study TNBC patients who were treated with neoadjuvant chemotherapy (NAC) and surgery were analyzed retrospectively. The primary aim of the study was to analyze the impact of Her2 status(Her2-0 and Her2-low) on pathological complete response (pCR). The secondary objectives were disease free survival (DFS) and overall survival (OS). 620 female triple negative breast cancer patients were evaluated. 427 patients (68.9%) had Her2-0 and 193(31.1%) had her2-low pathology. The pCR rates were similar between Her2-0 and Her2-low patients (33.0% vs. 27.5%, p = 0.098). Although Her2-0 group has better DFS (106 vs. 50 months, p = 0.002), in multivariate analysis it had a HR of 0.74 (p = 0.06). In addition, OS was similar (131 vs. 105 months, p = 0.13) with a HR of 0.88 (p = 0.61). In multivariate analysis; presence of LVI (HR:2.2 (95% CI 1.1-3.5) p = 0.001), Clinical stage T1/T2 (HR:0.39 (95% CI 0.2-0.6) p < 0.001) and lymph node negativity (HR:0.35 (95% CI 0.1-0.9) p = 0.03) were independent factors for OS. Although there were pathological and clinical differences, the pCR, DFS and OS were similar between Her2-0 and Her2-low TNBC patients. The importance of Her2 status of TNBC in neoadjuvant setting should be further studied., (© 2024. The Author(s).)
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- 2024
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10. Total Neoadjuvant Therapy Versus Neoadjuvant Chemoradiation for Locally Advanced Rectal Cancer: A Multi-Institutional Real-World Study.
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Şenocak Taşçı E, Mutlu AU, Saylık O, Ölmez ÖF, Bilici A, Sünger E, Sütçüoğlu O, Çakmak Öksüzoğlu ÖB, Özdemir N, Akdoğan O, Bayoğlu İV, Majidova N, Güren AK, Özen Engin E, Hacıbekiroğlu İ, Er Ö, Dane F, Bozkurt M, Turan Canbaz E, Erdamar S, Aytaç E, Özer L, and Yıldız İ
- Abstract
Total neoadjuvant therapy (TNT) has emerged as a promising approach for managing locally advanced rectal cancer (LARC), aiming to enhance resectability, increase pathological complete response (pCR), improve treatment compliance, survival, and sphincter preservation. This study compares the clinical outcomes of TNT, with either induction or consolidation chemotherapy, to those of the standard chemoradiotherapy (CRT). In this retrospective multi-institutional study, patients with stage II-III LARC who underwent CRT or TNT from seven oncology centers between 2021 and 2024 were retrospectively analyzed. The TNT group was categorized into induction or consolidation groups based on the sequence of chemotherapy and radiotherapy. Clinical and pathological data and treatment outcomes, including pCR, event-free survival (EFS), and overall survival (OS), were analyzed. Among the 276 patients, 105 received CRT and 171 underwent TNT. The TNT group showed significantly higher pCR (21.8% vs. 2.9%, p < 0.001) and lower lymphatic (26.3% vs. 42.6%, p = 0.009), vascular (15.8% vs. 32.7%, p = 0.002), and perineural invasion rates (20.3% vs. 37.6%, p = 0.003). Furthermore, 16.9% of TNT patients opted for non-operative management (NOM), compared to 0.9% in the CRT group ( p < 0.001). The median interval between the end of radiotherapy and surgery was longer in the TNT group (17.6 weeks vs. 8.8 weeks, p < 0.001). The 3-year EFS was 58.3% for CRT and 71.1% for TNT ( p = 0.06). TNT is associated with higher pCR, lower lymphatic and vascular invasion rates, and higher rates of NOM compared to CRT. This supports the use of TNT as a viable treatment strategy for LARC, offering potential benefits in quality of life.
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- 2024
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11. A propensity score-matched comparison of neoadjuvant chemoradiotherapy with cisplatin-5FU and carboplatin-paclitaxel in locally advanced esophageal squamous cell carcinoma: A Turkish oncology group study.
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Gürler F, Tay F, Sucuoğlu İşleyen Z, Yerlikaya T, Hendem E, Esen SA, Sütçüoğlu O, Işık D, Niğdelioğlu B, Özen M, Şahin E, Şakalar T, Şengül Samancı N, Alan Ö, Hacıbekiroğlu İ, Algın E, Yılmaz MK, Türk HM, Öksüzoğlu B, Yavuz A, Yüksel O, Bora H, Yazıcı O, Özet A, and Özdemir N
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- Humans, Male, Female, Middle Aged, Retrospective Studies, Aged, Turkey, Chemoradiotherapy methods, Chemoradiotherapy adverse effects, Adult, Propensity Score, Carboplatin administration & dosage, Cisplatin administration & dosage, Cisplatin therapeutic use, Cisplatin adverse effects, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Antineoplastic Combined Chemotherapy Protocols adverse effects, Neoadjuvant Therapy methods, Paclitaxel administration & dosage, Paclitaxel adverse effects, Paclitaxel therapeutic use, Fluorouracil administration & dosage, Fluorouracil adverse effects, Fluorouracil therapeutic use, Esophageal Squamous Cell Carcinoma therapy, Esophageal Squamous Cell Carcinoma mortality, Esophageal Squamous Cell Carcinoma pathology, Esophageal Neoplasms therapy, Esophageal Neoplasms pathology, Esophageal Neoplasms mortality
- Abstract
Background: Neoadjuvant treatment is the standard treatment in locally advanced ESCC. However, the optimal chemotherapy regimen is not known., Method: This is a retrospective observational cohort study conducted with propensity score matching. Patients with resectable ESCC from 13 tertiary centers from Türkiye were screened between January 2011 and December 2021. We compared the efficacy and safety of neoadjuvant chemoradiotherapy with the CF and the CROSS regimens in patients with ESCC., Results: Three hundred and sixty-two patients were screened. Patients who received induction chemotherapy (n = 72) and CROSS-ineligible (n = 31) were excluded. Two hundred and fifty nine patients received neoadjuvant chemoradiotherapy. After propensity score matching (n = 97 in both groups), the mPFS was 18.4 months (95% CI, 9.3-27.4) and 25.7 months (95% CI, 15.6-35.7; p = 0.974), and the mOS was 35.2 months (95% CI, 18.9-51.5) and 39.6 months (95% CI 20.1-59.2; p = 0.534), in the CF and the CROSS groups, respectively. There was no difference between subgroups regarding PFS and OS. Compared with the CF group, the CROSS group had a higher incidence of neutropenia (34.0% vs. 62.9%, p < 0.001) and anemia (54.6% vs. 75.3%, p = 0.003) in all grades. On the other hand, there was no significant difference in grade 3-4 anemia, grade 3-4 neutropenia, and febrile neutropenia between groups. There were more dose reductions and dose delays in the CROSS group than in the CF group (11.3% vs. 3.1%, p = 0.026 and 34.0% vs. 17.5%, p = 0.009, respectively). The resection rate was 52.6% in the CF-RT and 35.1% in the CROSS groups (p = 0.014)., Conclusion: Favorable PFS and pCR rates and a comparable OS were obtained with the CROSS regimen over the CF regimen as neoadjuvant chemoradiotherapy in patients with ESCC., (© 2024 The Author(s). Cancer Medicine published by John Wiley & Sons Ltd.)
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- 2024
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12. PNI as a Potential Add-On Biomarker to Improve the IMDC Intermediate Prognostic Score.
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Bayoğlu İV, Hüseynov J, Topal A, Sever N, Majidova N, Çelebi A, Yaşar A, Arıkan R, Işık S, Hacıoğlu MB, Ercelep Ö, Sarı M, Erdoğan B, Hacıbekiroğlu İ, Topaloğlu S, Köstek O, and Çiçin İ
- Abstract
Introduction: This study aimed to assess the role of the adjusted PNI-IMDC risk scoring system in stratifying the intermediate group of metastatic RCC patients who received TKIS in the first-line setting., Methods: A total of 185 patients were included. The adjusted PNI and IMDC model was used to divide the intermediate group into two groups: intermediate PNI-high and intermediate PNI-low groups. The statistical data were analyzed using Kaplan-Meier and Cox regression analysis., Results: The results showed that the adjusted PNI-IMDC risk score, classic IMDC, and PNI had similar prognostic values. Adjusted PNI-IMDC risk score might be used for a more homogeneous differentiation of the classic intermediate group. On the other hand, multivariate analysis revealed that the presence of nephrectomy, adjusted favorable/intermediate (PNI-high) group, ECOG performance score, and presence of bone metastasis were independent predictors of OS., Conclusions: Pre-treatment PNI, as a valuable and potential add-on biomarker to the adjusted PNI-IMDC classification model, can be helpful for establishing an improved prognostic model for intermediate group mRCC patients treated with first-line TKISs. Further validation studies are needed to clarify these findings.
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- 2023
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13. Real life experience of patients with locally advanced gastric and gastroesophageal junction adenocarcinoma treated with neoadjuvant chemotherapy: a Turkish oncology group study.
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Başoğlu T, Sakin A, Erol C, Özden E, Çabuk D, Çılbır E, Tataroğlu Özyükseler D, Ayhan M, Şendur MA, Dogan M, Öksüzoğlu B, Eryılmaz MK, Er Ö, Taşçı EŞ, Özyurt N, Dülgar Ö, Özen M, Hacıbekiroğlu İ, Öner İ, Bekmez ET, Çağrı Yıldırım H, Yalçın Ş, Paydaş S, Yekedüz E, Aksoy A, Özçelik M, Oyman A, Almuradova E, Karabulut B, Demir N, Dinçer M, Özdemir N, Erdem D, Ak N, İnal A, Salim DK, Deniz Gİ, Şakalar T, Gülmez A, Kaçan T, Özdemir Ö, Alan Ö, Ünal Ç, Karakaş Y, Turhal S, and Yumuk PF
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- Humans, Neoadjuvant Therapy, Turkey epidemiology, Antineoplastic Combined Chemotherapy Protocols adverse effects, Esophagogastric Junction pathology, Stomach Neoplasms drug therapy, Stomach Neoplasms pathology, Adenocarcinoma pathology
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Neoadjuvant chemotherapy (NACT) in gastroesophageal junction (GEJ) and gastric cancer (GC) was shown to improve survival in recent studies. We aimed to share our real-life experience of patients who received NACT to compare the efficacy and toxicity profile of different chemotherapy regimens in our country. This retrospective multicentre study included locally advanced GC and GEJ cancer patients who received NACT between 2007 and 2021. Relation between CT regimens and pathological evaluation were analysed. A total of 794 patients from 45 oncology centers in Turkey were included. Median age at the time of diagnosis was 60 (range: 18-86). Most frequent NACT regimens used were FLOT (65.4%), DCF (17.4%) and ECF (8.1%), respectively. In the total study group, pathological complete remission (pCR) rate was 7.2%, R0 resection rate 86.4%, and D2 dissection rate was 66.8%. Rate of pCR and near-CR (24%), and R0 resection (84%) were numerically higher in FLOT arm (p > 0.05). Patients who received FLOT had also higher chemotherapy-related toxicity rate compared to patients who received other regimens (p > 0.05). Median follow-up time was 16 months (range: 1-154 months). Estimated median overall survival (OS) was 58.4months (95% CI: 35.2-85.7) and disease-free survival (DFS) was 50.7 months (95% CI: 25.4-75.9). The highest 3-year estimated OS rate was also shown in FLOT arm (68%). We still do not know which NACT regimen is the best choice for daily practice. Clinicians should tailor treatment regimens according to patients' multifactorial status and comorbidities for to obtain best outcomes. Longer follow-up period needs to validate our results.
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- 2023
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14. Correction: Efficacy of subsequent treatments in patients with hormone-positive advanced breast cancer who had disease progression under CDK 4/6 inhibitor therapy.
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Karacin C, Oksuzoglu B, Demirci A, Keskinkılıç M, Baytemür NK, Yılmaz F, Selvi O, Erdem D, Avşar E, Paksoy N, Demir N, Göksu SS, Türker S, Bayram E, Çelebi A, Yılmaz H, Kuzu ÖF, Kahraman S, Gökmen İ, Sakin A, Alkan A, Nayır E, Uğraklı M, Acar Ö, Ertürk İ, Demir H, Aslan F, Sönmez Ö, Korkmaz T, Celayir ÖM, Karadağ İ, Kayıkçıoğlu E, Şakalar T, Öktem İN, Eren T, Erul E, Mocan EE, Kalkan Z, Yıldırım N, Ergün Y, Akagündüz B, Karakaya S, Kut E, Teker F, Demirel BÇ, Karaboyun K, Almuradova E, Ünal OÜ, Oyman A, Işık D, Okutur K, Öztosun B, Gülbağcı BB, Kalender ME, Şahin E, Seyyar M, Özdemir Ö, Selçukbiricik F, Kanıtez M, Dede İ, Gümüş M, Gökmen E, Yaren A, Menekşe S, Ebinç S, Aksoy S, İmamoğlu Gİ, Altınbaş M, Çetin B, Uluç BO, Er Ö, Karadurmuş N, Erdoğan AP, Artaç M, Tanrıverdi Ö, Çiçin İ, Şendur MAN, Oktay E, Bayoğlu İV, Paydaş S, Aydıner A, Salim DK, Geredeli Ç, Yavuzşen T, Doğan M, and Hacıbekiroğlu İ
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- 2023
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15. Efficacy of subsequent treatments in patients with hormone-positive advanced breast cancer who had disease progression under CDK 4/6 inhibitor therapy.
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Karacin C, Oksuzoglu B, Demirci A, Keskinkılıç M, Baytemür NK, Yılmaz F, Selvi O, Erdem D, Avşar E, Paksoy N, Demir N, Göksu SS, Türker S, Bayram E, Çelebi A, Yılmaz H, Kuzu ÖF, Kahraman S, Gökmen İ, Sakin A, Alkan A, Nayır E, Uğraklı M, Acar Ö, Ertürk İ, Demir H, Aslan F, Sönmez Ö, Korkmaz T, Celayir ÖM, Karadağ İ, Kayıkçıoğlu E, Şakalar T, Öktem İN, Eren T, Erul E, Mocan EE, Kalkan Z, Yıldırım N, Ergün Y, Akagündüz B, Karakaya S, Kut E, Teker F, Demirel BÇ, Karaboyun K, Almuradova E, Ünal OÜ, Oyman A, Işık D, Okutur K, Öztosun B, Gülbağcı BB, Kalender ME, Şahin E, Seyyar M, Özdemir Ö, Selçukbiricik F, Kanıtez M, Dede İ, Gümüş M, Gökmen E, Yaren A, Menekşe S, Ebinç S, Aksoy S, İmamoğlu Gİ, Altınbaş M, Çetin B, Uluç BO, Er Ö, Karadurmuş N, Erdoğan AP, Artaç M, Tanrıverdi Ö, Çiçin İ, Şendur MAN, Oktay E, Bayoğlu İV, Paydaş S, Aydıner A, Salim DK, Geredeli Ç, Yavuzşen T, Doğan M, and Hacıbekiroğlu İ
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- Humans, Female, Everolimus, Receptor, ErbB-2 therapeutic use, Protein Kinase Inhibitors adverse effects, Fulvestrant therapeutic use, Disease Progression, Antineoplastic Combined Chemotherapy Protocols adverse effects, Breast Neoplasms
- Abstract
Background: There is no standard treatment recommended at category 1 level in international guidelines for subsequent therapy after cyclin-dependent kinase 4/6 inhibitor (CDK4/6) based therapy. We aimed to evaluate which subsequent treatment oncologists prefer in patients with disease progression under CDKi. In addition, we aimed to show the effectiveness of systemic treatments after CDKi and whether there is a survival difference between hormonal treatments (monotherapy vs. mTOR-based)., Methods: A total of 609 patients from 53 centers were included in the study. Progression-free-survivals (PFS) of subsequent treatments (chemotherapy (CT, n:434) or endocrine therapy (ET, n:175)) after CDKi were calculated. Patients were evaluated in three groups as those who received CDKi in first-line (group A, n:202), second-line (group B, n: 153) and ≥ 3rd-line (group C, n: 254). PFS was compared according to the use of ET and CT. In addition, ET was compared as monotherapy versus everolimus-based combination therapy., Results: The median duration of CDKi in the ET arms of Group A, B, and C was 17.0, 11.0, and 8.5 months in respectively; it was 9.0, 7.0, and 5.0 months in the CT arm. Median PFS after CDKi was 9.5 (5.0-14.0) months in the ET arm of group A, and 5.3 (3.9-6.8) months in the CT arm (p = 0.073). It was 6.7 (5.8-7.7) months in the ET arm of group B, and 5.7 (4.6-6.7) months in the CT arm (p = 0.311). It was 5.3 (2.5-8.0) months in the ET arm of group C and 4.0 (3.5-4.6) months in the CT arm (p = 0.434). Patients who received ET after CDKi were compared as those who received everolimus-based combination therapy versus those who received monotherapy ET: the median PFS in group A, B, and C was 11.0 vs. 5.9 (p = 0.047), 6.7 vs. 5.0 (p = 0.164), 6.7 vs. 3.9 (p = 0.763) months., Conclusion: Physicians preferred CT rather than ET in patients with early progression under CDKi. It has been shown that subsequent ET after CDKi can be as effective as CT. It was also observed that better PFS could be achieved with the subsequent everolimus-based treatments after first-line CDKi compared to monotherapy ET., (© 2023. The Author(s).)
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- 2023
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16. Clinical outcomes of cyclin-dependent kinase 4-6 (CDK 4-6) inhibitors in patients with male breast cancer: A multicenter study.
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Yıldırım HÇ, Mutlu E, Chalabiyev E, Özen M, Keskinkılıç M, Ön S, Çelebi A, Dursun B, Acar Ö, Kahraman S, Aykan MB, Kaman Ö, Doğan A, Erdoğan AP, Melisa Celayir Ö, Günenç D, Güven DC, Vedat Bayoğlu İ, Yavuzşen T, Hacıbekiroğlu İ, İnanç M, Kılıçkap S, Yalçın Ş, and Aksoy S
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- Humans, Female, Male, Middle Aged, Aminopyridines therapeutic use, Cyclin-Dependent Kinase 4, Receptor, ErbB-2 metabolism, Protein Kinase Inhibitors therapeutic use, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Cyclin-Dependent Kinase 6, Breast Neoplasms pathology, Breast Neoplasms, Male drug therapy
- Abstract
Background: Since breast cancer is less common in men than in women, data on the use of new therapeutic agents, including cyclin-dependent kinase 4-6 (CDK 4-6) inhibitors, are limited in patients with metastatic hormone receptor positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) male breast cancer. Therefore; we aimed to investigate the treatment responses of metastatic HR+, HER2-male breast cancer patients treated with CDK 4-6 inhibitors in a multicenter real-life cohort., Methods: Male patients with a diagnosis of HR+ and HER2-metastatic breast cancer, treated with any CDK 4-6 inhibitor, were included in the study. Demographic and clinical characteristics of the patients were recorded. We aimed to determine progression-free survival (PFS) time, response rates and drug related side effects., Results: A total 25 patients from 14 institutions were recruited. The mean age at diagnosis was 57 years. Median follow-up was 19.53 (95% CI: 14.04-25.02) months. The overall response rate was 60%. While the median PFS was 20.6 months in the whole cohort, it wasn't reached in those using CDK 4-6 inhibitors in first line and 10 months in the subsequent lines (p:0.009). No new adverse events were encountered., Conclusion: In our study, we found that CDK 4-6 inhibitors are effective and safe options in men with HR+ and HER2-metastatic breast cancer as in women. Our results support the use of CDK 4-6 inhibitor-based combinations in the first-line treatment of HR+ and HER2-metastatic male breast cancer., Competing Interests: Declaration of competing interest The authors have declared no conflicts of interest., (Copyright © 2022 The Authors. Published by Elsevier Ltd.. All rights reserved.)
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- 2022
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17. Prognostic factors of perioperative FLOT regimen in operable gastric and gastroesophageal junction tumors: real-life data (Turkish Oncology Group).
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Erol C, Sakin A, Başoğlu T, Özden E, Çabuk D, Doğan M, Öksüzoğlu B, Yıldırım HÇ, Öner İ, Eryılmaz MK, Dülgar Ö, Aydın D, Doğan N, Özen M, Hacıbekiroğlu İ, Özdemir N, Gürler F, Paksoy N, Karabulut S, Aksoy A, Hızal M, Kahraman S, Şen E, Paydaş S, Çılbır E, Fırat F, Akdeniz N, Özçelik M, Oyman A, Baytemür NK, Acar R, Almuradova E, Karabulut B, Şakalar T, Arak H, Değerli E, Türker S, Alan Ö, Er Ö, Taşçı EŞ, Demir N, Çavdar E, Turhal S, Dede DŞ, Akıncı MB, Yalçın B, Yumuk F, Yalçın Ş, and Şendur MAN
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- Humans, Middle Aged, Prognosis, Retrospective Studies, Turkey epidemiology, Antineoplastic Combined Chemotherapy Protocols, Esophagogastric Junction pathology, Stomach Neoplasms drug therapy, Stomach Neoplasms surgery, Stomach Neoplasms pathology
- Abstract
Background: Perioperative FLOT regimen is a standard of care in locally advanced operable gastric and GEJ adenocarcinoma. We aimed to determine the efficacy, prognostic factors of perioperative FLOT chemotherapy in real-life gastric and GEJ tumors., Methods: The data of patients who were treated with perioperative FLOT chemotherapy were retrospectively analyzed from 34 different oncology centers in Turkey. Baseline clinical and demographic characteristics, pretreatment laboratory values, histological and molecular characteristics were recorded., Results: A total of 441 patients were included in the study. The median of age our study population was 60 years. The majority of patients with radiological staging were cT3-4N(+) (89.9%, n = 338). After median 13.5 months (IQR: 8.5-20.5) follow-up, the median overall survival was NR (95% CI, NR to NR), and median disease free survival was 22.9 (95% CI, 18.6 to 27.3) months. The estimated overall survival at 24 months was 62%. Complete pathological response (pCR) and near pCR was achieved in 23.8% of all patients. Patients with lower NLR or PLR have significantly longer median OS (p = 0.007 and p = 0.033, respectively), and patients with lower NLR have significantly longer median DFS (p = 0.039), but PLR level did not affect DFS (p = 0.062). The OS and DFS of patients with better ECOG performance scores and those who could receive FLOT as adjuvant chemotherapy instead of other regimens were found to be better. NLR was found to be independent prognostic factor for OS in the multivariant analysis. At least one adverse event reported in 57.6% of the patients and grade 3-4 toxicity was seen in 23.6% patients., Discussion: Real-life perioperative FLOT regimen in operable gastric and GEJ tumors showed similar oncologic outcomes compared to clinical trials. Better performance status, receiving adjuvant chemotherapy as same regimen, low grade and low NLR and PLR improved outcomes in real-life. However, in multivariate analysis, only NLR affected OS.
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- 2022
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18. Psoas muscle mass, nutritional status, inflammation, and their relationship with prognosis in patients with pancreatic adenocarcinoma.
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Yıldırım İ, Kaya T, İşsever K, Genç AC, Karacan A, Önmez A, and Hacıbekiroğlu İ
- Subjects
- Adenoma physiopathology, Aged, Female, Humans, Inflammation physiopathology, Male, Middle Aged, Nutrition Assessment, Pancreatic Neoplasms physiopathology, Prognosis, Retrospective Studies, Weights and Measures instrumentation, Adenoma complications, Inflammation etiology, Nutritional Status physiology, Pancreatic Neoplasms complications, Psoas Muscles
- Abstract
Introduction: Introduction: some factors have been shown to be associated with survival in patients with pancreatic adenocarcinoma. Recently, some studies suggested that malnutrition, muscle mass, and inflammation might have an effect on survival in patients with pancreatic malignancy. Objectives: to investigate the association between psoas muscle mass, inflammation, nutritional status at the time of diagnosis, and survival in patients with pancreatic adenocarcinoma. Methods: this retrospective study included 219 patients diagnosed with pancreatic carcinoma. The nutritional status, inflammation, and psoas muscle mass of the patients at the time of diagnosis were evaluated. Nutritional status was assessed using the Prognostic Nutritional Index (PNI). Leucocyte count and neutrophil/lymphocyte ratio (NLR) were used for inflammation assessment. Psoas muscle mass was calculated by using abdominal computed tomography images of the patients. Results: the mean age of patients (80 female and 139 male) was 66.6 ± 11.7 years. According to the PNI results, 155 patients had a normal nutritional status (70 %), whereas 64 patients were malnourished (30 %). The survival of the patients with normal nutritional status was significantly longer than that of those who were malnourished (p < 0.001). There was no significant relationship between psoas muscle area, leucocyte count, NLR, and survival time. Conclusion: the survival of pancreatic adenocarcinoma patients with malnutrition at the time of diagnosis was significantly shorter than for patients without malnutrition.
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- 2021
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19. Comparison of real-life data of abiraterone acetate and enzalutamide in metastatic castration-resistant prostate cancer.
- Author
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Demirci A, Bilir C, Gülbağcı B, Hacıbekiroğlu İ, Bayoğlu İV, Bilgetekin İ, Koca S, Çınkır HY, Akdeniz N, Gül D, Varım C, Demirci U, and Öksüzoğlu B
- Subjects
- Aged, Aged, 80 and over, Antineoplastic Agents administration & dosage, Disease-Free Survival, Humans, Kallikreins genetics, Male, Middle Aged, Neoplasm Metastasis, Prognosis, Progression-Free Survival, Prostate-Specific Antigen blood, Prostatic Neoplasms, Castration-Resistant blood, Prostatic Neoplasms, Castration-Resistant pathology, Taxoids administration & dosage, Treatment Outcome, Abiraterone Acetate administration & dosage, Benzamides administration & dosage, Docetaxel administration & dosage, Nitriles administration & dosage, Phenylthiohydantoin administration & dosage, Prostatic Neoplasms, Castration-Resistant drug therapy
- Abstract
To compare enzalutamide (E) and abiraterone acetate (AA) in terms of efficacy, survival and to characterize prognostic factors affecting survival in metastatic castration-resistant prostate cancer (mCRPC) patients. A total of 250 patients treated with E or AA in 5 centers were included. The number of patients with no prostate specific antigen (PSA) decline was higher in the AA group than that in the E group, and the proportion of patients with a PSA decline of ≥ 50% was higher in the E group (p = 0.020). Radiological progression free survival (rPFS) and overall survival (OS) were significantly longer in the E group when compared to that in the AA group (p < 0.001 and p = 0.027, respectively). In the E group, rPFS was significantly longer than that in the AA group in both pre- and post-docetaxel settings (p = 0.010 and p = 0.003, respectively). OS was similar in the pre-docetaxel setting; but in the post-docetaxel setting, E group had a significantly longer OS than the AA group (p = 0.021). In the multivariate analysis performed in the whole patient group, we found that good prognostic factors for rPFS were E treatment, being ≥ 75 years and a PSA decline of ≥ 50% while there was no factor affecting OS. With longer OS and PFS, E seems to be more suitable for mCRPC patients in the post-docetaxel setting than AA.
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- 2021
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20. Relationship between serum osteopontin levels and the severity of COVID-19 infection.
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Varım C, Demirci T, Cengiz H, Hacıbekiroğlu İ, Tuncer FB, Çokluk E, Toptan H, Karabay O, and Yıldırım İ
- Subjects
- Adult, Aged, Endothelial Cells, Female, Humans, Leukocyte Count, Male, Middle Aged, SARS-CoV-2, COVID-19, Osteopontin
- Abstract
Background: Coronavirus disease 2019 (COVID-19) is an acute inflammatory respiratory disease. Osteopontin (OPN) is a glycoprotein expressed in various cell types, such as bone, immune, smooth muscle, epithelial and endothelial cells. It also acts as a regulator of immune response. The aim of the present study was to reveal the place of serum osteopontin levels in predicting severity among patients with COVID-19., Methods: This study included 84 patients, 43 female and 45 male. Patients were divided into 2 groups, group 1 non-severe group (n: 48), group 2 severe (n: 40). Demographic data, neutrophil, lymphocyte, platelet, white blood cell counts, albumin, procalcitonin, C‑reactive protein (CRP) and OPN levels were recorded. The OPN levels and these inflammatory parameters of the two groups were compared., Results: There were no significant differences in terms of gender (female/male 25/23 vs. 18/22) and platelet count (178 K/μL vs. 191 K/μL) between the groups (p > 0.05). Ages (57.7 ± 17.0 years vs. 71.4 ± 12.8 years), procalcitonin (0.07 vs. 0.24 ng/mL), CRP (17 vs 158 mg/l), neutrophil count (3.7 vs 5.64 K/μL), WBC counts (5.38 vs 7.85 K/μL) and number of deaths (0 vs 26) (p < 0.001). The OPN levels (98.5 vs 13.75 ng/mL, p = 0.002) were found to be statistically higher, in group 2 than group 1., Conclusion: The present study showed that OPN can be used to predict the severity in patients with COVID-19.
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- 2021
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21. KRAS Mutation in Small Cell Lung Carcinoma and Extrapulmonary Small Cell Cancer.
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Kodaz H, Taştekin E, Erdoğan B, Hacıbekiroğlu İ, Tozkır H, Gürkan H, Türkmen E, Demirkan B, Uzunoğlu S, and Çiçin İ
- Abstract
Background: Lung cancer is one of the most lethal cancers. It is mainly classified into 2 groups: non-small cell lung cancer (NSCLC) and small cell lung cancer (SCLC). Extrapulmonary small cell carcinomas (EPSCC) are very rare. The Ras oncogene controls most of the cellular functions in the cell. Overall, 21.6% of human cancers contain a Kirsten Ras (KRAS) mutation. SCLC and EPSCC have several similar features but their clinical course is different., Aims: We investigated the KRAS mutation status in SCLC and EPSCC., Study Design: Mutation research., Methods: Thirty-seven SCLC and 15 EPSCC patients were included in the study. The pathological diagnoses were confirmed by a second pathologist. KRAS analysis was performed in our medical genetic department. DNA isolation was performed with primary tumor tissue using the QIAamp DNA FFPE Tissue kit (Qiagen; Hilden, Germany) in all patients. The therascreen KRAS Pyro Kit 24 V1 (Qiagen; Hilden, Germany) was used for KRAS analyses., Results: Thirty-four (91.9%) of the SCLC patients were male, while 11 (73.3%) of the EPSCC l patients were female. SCLC was more common in males, and EPSCC in females (p=0.001). A KRAS mutation was found in 6 (16.2%) if SCLC patients. The most common mutation was Q61R (CAA>CGA). Among the 15 EPSCC patients, 2 had a KRAS mutation (13.3%). When KRAS mutant and wild type patients were compared in the SCLC group, no difference was found for overall survival (p=0.6)., Conclusion: In previous studies, the incidence of KRAS mutation in SCLC was 1-3%; however, it was 16.2% in our study. Therefore, there may be ethnic and geographical differences in the KRAS mutations of SCLC. As a result, KRAS mutation should not be excluded in SCLC.
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- 2016
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22. A rare cause in etiology of left atrial mass: metastatic testicular germ cell tumor.
- Author
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Huseyin S, Yüksel V, Okyay A, Hacıbekiroğlu İ, Tastekin E, Yılmaztepe M, Taylan G, Canbaz S, and Çiçin İ
- Abstract
Although intracardiac metastasis of germ cell tumors is rare, it can be localized in the right or left heart by disseminating spread and give their cardiac symptoms depending on the location of metastatic mass. We present a 38-year-old male patient with a preliminary diagnosis of testicular tumor who was followed by the medical oncology clinic with cerebrovascular event and heart failure symptoms.
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- 2016
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23. The effect of the gastrectomy on survival in patients with metastatic gastric cancer: a study of ASMO.
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Yazıcı O, Özdemir N, Duran AO, Menekşe S, Şendur MA, Karaca H, Göksel G, Arpacı E, Hacıbekiroğlu İ, Bilgetekin İ, Kaçan T, Özkan M, Aksoy S, Aksoy A, Çokmert S, Uysal M, Elkıran ET, Çiçin İ, Büyükberber S, and Zengin N
- Subjects
- Adult, Aged, Aged, 80 and over, Female, Gastrectomy, Humans, Kaplan-Meier Estimate, Male, Middle Aged, Multivariate Analysis, Peritoneal Neoplasms mortality, Peritoneal Neoplasms secondary, Proportional Hazards Models, Retrospective Studies, Stomach Neoplasms mortality, Stomach Neoplasms pathology, Treatment Outcome, Young Adult, Peritoneal Neoplasms surgery, Stomach Neoplasms surgery
- Abstract
Aim: To investigate the role of surgical resection of primary tumor on overall survival (OS) in advanced gastric cancer patients at the time of diagnosis., Patients & Methods: The survival rates of metastatic gastric cancer patients whose gastric primary tumor was resected at time of diagnosis were compared with metastatic gastric cancer patients whose primary tumor was nonresected., Results: The median progression-free survival and OS in operated and nonoperated group were 10 versus 6, 14 versus 9 months, respectively (p < 0.001). In multivariate analysis, gastric resection of primary tumor, Eastern Cooperative Oncology Group performance status, second-line chemotherapy had a significant effect on OS (hazard ratio [HR]: 0.52 [95% CI: 0.38-0.71], HR: 0.57 [95% CI: 0.42-0.78], HR: 1.48 [1.09-2.01]; p ≤ 0.001, p = 0.001 and p = 0.012, respectively)., Conclusion: Subpopulations of patients with metastatic gastric cancer might benefit from surgical removal of primary tumor.
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- 2016
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24. Antioxidant and anticholinesterase activities of eleven edible plants.
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Boğa M, Hacıbekiroğlu I, and Kolak U
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- Acetylcholinesterase metabolism, Antioxidants pharmacology, Butyrylcholinesterase metabolism, Cholinesterase Inhibitors pharmacology, Cinnamomum zeylanicum, Plant Extracts pharmacology, Antioxidants isolation & purification, Cholinesterase Inhibitors isolation & purification, Plant Components, Aerial, Plant Extracts isolation & purification, Plants, Edible
- Abstract
Context: Consumers have become more interested in beneficial effects of vegetables, fruits, and tea to protect their health., Objective: The antioxidant potential and anticholinesterase activity of eleven edible plants were investigated., Material and Methods: The dichloromethane, ethanol and water extracts prepared from celery [Apium graveolens L. (Umbelliferae)], Jerusalem artichoke [Helianthus tuberosus L. (Compositae)], spinach [Spinacia oleracea L. (Chenopodiaceae)], chard [Beta vulgaris L. var. cicla (Chenopodiaceae)], purslane [Portulaca oleracea L. (Portulacaceae)], ispit, or borage [Trachystemon orientale (L.) G. Don (Boraginaceae)], garden rocket [Eruca sativa Mill. (Brassicaceae)], red cabbage [Brassica oleracea L. var. capitata f. rubra DC. (Cruciferae)], lime flower [Tilia tomentosa Moench (Tiliaceae)], cinnamon [Cinnamomum cassia Presl. (Lauraceae)], and rosehip [Rosa canina L. (Rosaceae)], were tested to determine their antioxidant and anticholinesterase activities by using CUPRAC (cupric reducing antioxidant capacity) and Ellman methods, respectively, for the first time., Results: As a result, the dichloromethane, ethanol and water extracts of cinnamon showed the best antioxidant effect among the extracts of the tested plants. The ethanol extract of cinnamon exhibited 63.02% inhibition against acetylcholinesterase and 85.11% inhibition against butyrylcholinesterase (BChE) at 200 µg/mL concentration while the dichloromethane extract of garden rocket possessed the highest inhibition (91.27%) against BChE among all the tested extracts., Discussion and Conclusion: This study indicated that the ethanol extract of cinnamon may be a new potential resource of natural antioxidant and anticholinesterase compounds.
- Published
- 2011
- Full Text
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