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Al Yassine D, El Massri N, Demircan G, Bulut G, Akin D, Tacer-Caba Z. Total Antioxidant Potential, Total Phenolic Profile and Cytotoxic Activity Against Brain Cancer: Melocan and Galdirik §. Food Technol Biotechnol 2023; 61:475-484. [PMID: 38205056 PMCID: PMC10775792 DOI: 10.17113/ftb.61.04.23.8071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 11/15/2023] [Indexed: 01/12/2024] Open
Abstract
Research background Brain cancer is known to be one of the most difficult types of cancer to cure. It has a serious impact on the lives of diagnosed people due to the insufficient treatment options and their side effects. The search for new alternative treatments is therefore ongoing. Melocan (Smilax excelsa L.) and galdirik (Trachystemon orientalis) are of great importance in both traditional culinary culture and traditional medicine around the Black Sea; however, the knowledge about their antioxidant and cytotoxic effects remains fairly limited. Experimental approach The aim of this study is to determine the antioxidant and cytotoxic activity of Smilax excelsa and Trachystemon orientalis on the C6 glioblastoma cell line. The plants of Smilax excelsa and Trachystemon orientalis were dried and extracted and then their total phenolic content (TPC) and phenolic profiles were studied. In addition, their total antioxidant status (TAS) and total oxidant status (TOS) were determined using an assay kit. We also analysed the total antioxidant activity (TAA) using the DPPH radical scavenging assay and the cytotoxic effect on the glioma cells using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium (MTT) assay. Results and conclusions According to the results, the water extracts of Smilax excelsa and Trachystemon orientalis had higher TPC (expressed in gallic acid equivalents on dry mass basis: 1158.17 and 262 mg/100 g, respectively) than the ethanol extracts. TAA expressed in Trolox equivalents on dry mass basis was 192.86 and 131.92 mg/100 g for Smilax excelsa and Trachystemon orientalis, respectively. The MTT assay showed that Trachystemon orientalis had a greater cytotoxic effect. In conclusion, the findings of the current study are promising for the development of new drugs. Novelty and scientific contribution This is the first study that aims to evaluate the potential cytotoxic activity of two local Turkish plants, Smilax excelsa and Trachystemon orientalis, against C6 glioblastoma cells. The results confirm that both plants could be used as good therapeutic agents for the treatment of cancer in the future.
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Affiliation(s)
- Diaa Al Yassine
- Graduate School of Engineering, Bioengineering Program, Bahçeşehir University, Istanbul, Turkey
| | - Nourhane El Massri
- Graduate School of Engineering, Bioengineering Program, Bahçeşehir University, Istanbul, Turkey
| | - Gunnur Demircan
- Department of Medical Biology and Genetics, Faculty of Medicine, Demiroglu Bilim University, Istanbul, Turkey
| | - Gulay Bulut
- Faculty of Medicine, Department of Medical Biology, Karabuk University, Karabuk, Turkey
| | - Demet Akin
- Department of Pharmacology, Bahçeşehir University School of Medicine, Istanbul, Turkey
| | - Zeynep Tacer-Caba
- Department of Molecular Biology and Genetics, Faculty of Engineering and Natural Sciences, Bahçeşehir University, Istanbul, Turkey
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Bulut G, Kilinc G. The impact of infant feeding and oral hygiene habits on early childhood caries: A cross-sectional study. Niger J Clin Pract 2023; 26:810-818. [PMID: 37470657 DOI: 10.4103/njcp.njcp_904_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
Background and Aim The aim of this study is to evaluate the relationship between the Early Childhood Caries (ECC)/severe-ECC (S-ECC) and prolonged breast-feeding (BF), bottle-feeding, and oral hygiene habits in 0-year-old to 5-year-old Turkish children. Patients and Methods Dental examinations were performed on 255 patients to determine the prevalence of the ECC and the S-ECC as per the definition of the American Academy of Pediatric Dentistry. To predict the progress rate of caries, noncavitated and cavitated lesion scores were assessed by using the International caries detection and assessment system II criteria. Information on infant feeding practices, oral hygiene habits, maternal characteristics, and demographic features were gathered by means of a questionnaire. The results were statistically evaluated. Results There were no associations between BF duration, night-time BF, bottle-feeding, and the ECC. And there were also no associations between BF duration, night-time BF, bottle-feeding, and the S-ECC. Cavitated lesions were more common in children breastfed at night for 18-23 months compared to 12-17 months (P = 0.031). Sweetened bottle was an impact factor on caries experience (P = 0.042). A significant correlation was found for dmft, S-ECC, and the cavitated lesions regarding sugar consumption (P = .001, P = .002, and P = .001, respectively). Early introduction to tooth-brushing and regular dental visits were significantly effective in reducing the ECC (P < .001 and P < .001, respectively). Conclusion BF and bottle-feeding practices were not associated with the ECC/S-ECC. Sweetened bottles and sugary foods are strong risk factors for the ECC/S-ECC.
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Affiliation(s)
- G Bulut
- Department of Pediatric Dentistry, Faculty of Dentistry, Dokuz Eylul University, Izmir, Turkey
| | - G Kilinc
- Department of Pediatric Dentistry, Faculty of Dentistry, Dokuz Eylul University, Izmir, Turkey
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Mete Gökmen N, Kuman Tunçel O, Boğatekin G, Bulut G, Demir S, Gelincik A, Tunakan Dalgıç C, Mungan D. Psychiatric and Clinical Characteristics of Hereditary Angioedema Patients Who Experienced Attacks During COVID-19. J Investig Allergol Clin Immunol 2021; 31:356-357. [PMID: 33949951 DOI: 10.18176/jiaci.0701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- N Mete Gökmen
- Department of Internal Medicine, Division of Allergy and Immunology, Ege University Faculty of Medicine, Izmir, Turkey
| | - O Kuman Tunçel
- Department of Psychiatry, Ege University Faculty of Medicine, Izmir, Turkey
| | - G Boğatekin
- Department of Internal Medicine, Division of Allergy and Immunology, Ege University Faculty of Medicine, Izmir, Turkey
| | - G Bulut
- Department of Chest Diseases, Division of Allergy and Immunology, Balıkesir Atatürk City Hospital, Balıkesir, Turkey
| | - S Demir
- Department of Internal Medicine, Division of Allergy and Immunology, Istanbul University Faculty of Medicine, Istanbul, Turkey
| | - A Gelincik
- Department of Internal Medicine, Division of Allergy and Immunology, Istanbul University Faculty of Medicine, Istanbul, Turkey
| | - C Tunakan Dalgıç
- Department of Internal Medicine, Division of Allergy and Immunology, Ege University Faculty of Medicine, Izmir, Turkey
| | - D Mungan
- Department of Chest Diseases, Division of Allergy and Immunology, Ankara University School of Medicine, Ankara, Turkey
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Yıldırım S, Erdoğan AP, Karateke M, Yılmaz C, Özveren A, Bulut G, Ekinci F, Almuradova E. Metastatic Pancreatic Cancer Second-Line Treatment Options: Is the Difference Only in Cost? J Gastrointest Cancer 2021; 53:41-44. [PMID: 33400209 DOI: 10.1007/s12029-020-00573-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/16/2020] [Indexed: 10/22/2022]
Abstract
İNTRODUCTION: Although pancreatic cancer ranks seventh in cancer-related deaths, it is an extremely fatal disease, and more than 330,000 people die from this disease worldwide. Although there are many first-line treatment studies in the literature, there are almost no prospective studies regarding second-line therapy. Therefore, there is no standard approach in the second-line treatment of pancreatic cancer. We decided to conduct this study to investigate second-line treatments with problems such as cost, treatment efficacy, and toxicity. METHODS Patients older than 18 years old who applied to Ege University Hospital medical oncology department with a diagnosis of metastatic pancreatic cancer, who received first-line chemotherapy due to their illness, and who had progressed afterwards were included in the study. The files of the patients who applied between 2013 and 2017 were examined. RESULTS Our study's primary endpoint was progression-free survival, and it was found that the median progression-free survival was 3.2 months in the Xelox patients, 3.7 months in the gemcitabine-nab paclitaxel patients, and 3.5 months in the other regimens. When the secondary endpoint was evaluated, overall survival, the median overall survival was 5.9 months in the Xelox patients, 5.3 months in the gemcitabine-nab paclitaxel patients, and 4.8 months in the other regimens. CONCLUSION As a result, second-line treatments were compared, and no statistically significant difference was found between them. For this reason, the side effects of previously used drugs and the side effects of new drugs to be used, as well as their costs, should be evaluated when choosing a treatment.
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Affiliation(s)
- Serkan Yıldırım
- Department Of Medical Oncology, Bitlis Tatvan Public Hospital, Tatvan, 13200, Bitlis, Turkey.
| | - A P Erdoğan
- Celal Bayar University Medical School, Manisa, Turkey
| | - M Karateke
- Ege University Medical School, Izmir, Turkey
| | - C Yılmaz
- İzmir Bozyaka Training and Research Hospital, Izmir, Turkey
| | | | - G Bulut
- Hatay Defne Hospital, Hatay, Turkey
| | - F Ekinci
- Celal Bayar University Medical School, Manisa, Turkey
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Abstract
AIM The aim of this study is to determine the age and most common reasons of the first dental visit among preschool children, taking into account family income and parental education in Turkey. METHODS This cross-sectional study was conducted in a state dental hospital on 519 children aged 0-5 years who had their first dental visit with no previous dental experience. Data on age and reasons for the first dental visit of the children and parent relevant data on family income, educational level, dental visit frequency, and satisfaction about the oral health care information was collected by means of a questionnaire. RESULTS Of the 519 children of the study, 47.4% were males and 52.6% were females. The mean age of first dental visit was 3.62±1.32 and 2.9% of the children had been visited under the age of 1 year. Pain (36.4%) was the main reason for the visit followed mostly by check-up (23.1%), other reasons (21.4%), and decay noted by parents (15.6%). There was no referral from paediatricians. Parental educational level was not found as an impact factor for the reasons and the age of the visit (p=0.394; p=0.245). Children of low-income-family were more likely to have dental visit due to pain (p=0.002). The frequency of parents' dental visits was not a determinant factor for the reason and the age of the child's visit (p>0.05; p>0.05). All the parents were satisfied with the oral health information. CONCLUSION It is necessary to raise awareness about early dental visits and oral health care among parents and paediatricians.
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Affiliation(s)
- G Bulut
- Clinic of Pediatric Dentistry, Izmir Training Dental Hospital, IZMIR, Turkey
| | - H Bulut
- Associate Professor, Department of Orthodontics, Faculty of Dentistry, Ege University, Izmir, Turkey
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Bulut H, Bulut G. A step to infant oral health promotion intervention among parents. Eur J Paediatr Dent 2020; 21:61-65. [PMID: 32183531 DOI: 10.23804/ejpd.2020.21.01.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AIM Providing oral health care to children from infant to toddler age can be achieved by educating and informing parents about their children’s oral health. The aims of this study were to determine the basic knowledge of oral health and to evaluate the efficacy of an infant oral health education programme among parents in Turkey. METHODS Study Design: One hundred and fifty parents of infants between 3 and 12 months of age attending the well-baby clinic, Dr. Behcet Uz Children’s Hospital (Izmir, Turkey), participated in the study. A pre-test questionnaire was administered to each parent to assess their infant oral health knowledge. The educational intervention was in the form of a 30-minute interactive explanation of a PowerPoint presentation. The parents completed a post-test after the education in the same session (a questionnaire was administered). RESULTS The range of correct answers on the pre-test was 7–20 of 26 with a mean of 13.7 (SD=2.76). The range of correct answers on the post-test was 12–26 of 26 with a mean of 21.2 (SD=3.34). The difference of correct responses between before and after education was found to be statistically significant (p<0.01). CONCLUSION Under the conditions of this study, educational presentation improved parents’ knowledge on infant oral health care and provided anticipatory guidance.
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Affiliation(s)
- H Bulut
- Department of Orthodontics, Faculty of Dentistry, Ege University,Bornova, Izmir, Turkey
| | - G Bulut
- Clinic of Pediatric Dentistry, Izmir Training Dental Hospital, Konak, Izmir, Turkey
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Metin-Armagan D, Comunoglu N, Bulut G, Kadioglu P, Kameda H, Gazioglu N, Tanriover N, Ozturk M. A Novel Expression Profile of Cell Cycle and DNA Repair Proteins in Nonfunctioning Pituitary Adenomas. Endocr Pathol 2020; 31:2-13. [PMID: 31828584 DOI: 10.1007/s12022-019-09598-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The molecular mechanisms underlying the formation of nonfunctioning pituitary adenomas (NFAs) are largely unknown. In this study, we aimed to understand the relationship between NFAs and functional pituitary adenomas and the possible role of proteins involved in cell cycle, senescence, and DNA damage control mechanisms in the etiology of NFA. We analyzed pATM-S1981, pRb-S608, Rb, pE2F1-S364, p16, E2F1, p73, cyclin D1, and CHEK2 protein expression (in a group of 20 patients with acromegaly, 18 patients with Cushing's disease (CD), and 29 NFA patients) by immunohistochemistry and their relevant mRNA expression by qRT-PCR (in a group of 7 patients with acromegaly, 7 patients with CD, and 7 NFA patients). The clinical and histopathological results on the patients were statistically evaluated. pE2F1-S364 protein expression in the CD group was significantly lower than that in the NFA and acromegaly groups (p = 0.025, p = 0.034, respectively). However, the expression of the p16 protein was lower than in the NFA group than in the CD and acromegaly groups (p = 0.030, p = 0.033, respectively), and E2F1 protein expression was significantly higher in the NFA group than in the CD group (p = 0.025). p73 protein expression in patients with acromegaly was significantly higher (p = 0.031) than that in the CD group. CHEK2 mRNA expression in the CD group was significantly higher than that in the acromegaly group (p = 0.012). The selective and tumor-specific associations between E2F1, pE2F1-S364, CHEK2, and p73 mRNA and protein levels indicate their involvement in pituitary adenoma formation in NFA, CD, and acromegaly patients.
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Affiliation(s)
- Derya Metin-Armagan
- Department of Medical Biology, Cerrahpasa Medical School, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Nil Comunoglu
- Department of Pathology, Cerrahpasa Medical School, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Gulay Bulut
- Department of Molecular Biology and Genetics, Faculty of Engineering and Natural Sciences, Bahçeşehir University, Istanbul, Turkey
| | - Pinar Kadioglu
- Department of Endocrinology and Metabolism, Cerrahpasa Medical School, Istanbul University-Cerrahpasa, Cerrahpasa, Istanbul, Turkey
| | - Hiraku Kameda
- Department of Rheumatology, Endocrinology and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Nurperi Gazioglu
- Department of Neurosurgery, Istanbul Bilim University, Istanbul, Turkey
| | - Necmettin Tanriover
- Department of Neurosurgery, Cerrahpasa Medical School, Istanbul University- Cerrahpasa, Istanbul, Turkey
| | - Melek Ozturk
- Department of Medical Biology, Cerrahpasa Medical School, Istanbul University-Cerrahpasa, Istanbul, Turkey.
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Abstract
Objective To evaluate clinical and histological characteristics and determine the incidence of natal/neonatal teeth in a large Turkish population. Subjects and Methods Among 17,829 newborns, who were hospitalized at the Neonatal Clinic of a governmental Children's Hospital between 2005 and 2011, 27 neonates were diagnosed with erupted teeth, which were examined in terms of location, clinical appearance and mobility. Besides histological evaluation, a positive family history was also recorded. The variables were analyzed using Chi-square test. Results Thirty-two natal/neonatal teeth were observed in 27 infants. The incidence of both natal and neonatal teeth was found to be 1:660, while the incidences were separately recorded as 1:1,048 and 1:1,782, respectively. The histological examination revealed a thin hypoplastic enamel layer and a normal dentin layer. There was no difference between the two genders in terms of natal/neonatal tooth type, positive family history and tooth morphology (p > 0.05); or between normal and conical shapes with regard to natal/neonatal tooth type, positive family history and tooth color (p > 0.05). Conclusions This study exhibited a higher incidence in natal teeth than neonatal teeth. Macroscopic features were not found to be positively related to gender and tooth type.
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Affiliation(s)
- G Bulut
- Department of Paediatric Dentistry, Izmir Training Dental Hospital, Konak-Izmir, Turkey
| | - H Bulut
- Department of Orthodontics, Faculty of Dentistry, Ege University, Bornova-Izmir, Turkey
| | - R Ortac
- Department of Pathology, Dr. Behcet Uz Child Disease and Pediatric Surgery Training and Research Hospital, University of Health Sciences, Konak-Izmir, Turkey
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Bulut G, Colak I, Mik G, Kilic Z, Tasdemir Z. Bilateral Talus and Navicular Fractures accompanied with Unilateral Calcaneal Fracture: A Case Report. Malays Orthop J 2018; 12:47-51. [PMID: 30112129 PMCID: PMC6092534 DOI: 10.5704/moj.1807.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
An 18-year old male patient, with a history of paragliding accident, sustaining a coronal shear fracture of the body of the talus, an anterior process fracture of the calcaneus extending to the calcaneocuboid joint and a nondisplaced navicular body fracture at the right foot and a displaced fracture of the navicular body accompanied with posteromedial process fracture of the talus at the left side was referred to our emergency clinic. For the right foot, the coronal plane fracture of the talar body was anatomically reduced and fixed with screws. For the left foot, screw fixation was performed through the lateral aspect to fix the large posteromedial fragment. Small bone fragments were removed from the left navicular fracture, and the main fragments were also fixed with screw. The talo-navicular joint was stabilised with a Kirschner wire. At 36 months follow-up, bilateral foot and ankle functions were satisfactory, Maryland scores of the right and left foot were 85 (good) and 90 (excellent), respectively, and the patient regained his full activity level by the 5th month postoperatively. With reference to the number and types of fractures in this one patient, we present a standard protocol for treatment of isolated talus, navicular and calcaneal fractures presenting together in a single foot injury.
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Affiliation(s)
- G Bulut
- Department of Orthopaedics, Dr Lutfi Kirdar Kartal Training and Research Hospital, Istanbul, Turkey
| | - I Colak
- Department of Orthopaedics, Dr Lutfi Kirdar Kartal Training and Research Hospital, Istanbul, Turkey
| | - G Mik
- Department of Orthopaedics, Istanbul Surgery Hospital, Istanbul, Turkey
| | - Z Kilic
- Department of Orthopaedics, Dr Lutfi Kirdar Kartal Training and Research Hospital, Istanbul, Turkey
| | - Z Tasdemir
- Department of Orthopaedics, Dr Lutfi Kirdar Kartal Training and Research Hospital, Istanbul, Turkey
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Durdagi S, Aksoydan B, Erol I, Kantarcioglu I, Ergun Y, Bulut G, Acar M, Avsar T, Liapakis G, Karageorgos V, Salmas RE, Sergi B, Alkhatib S, Turan G, Yigit BN, Cantasir K, Kurt B, Kilic T. Integration of multi-scale molecular modeling approaches with experiments for the in silico guided design and discovery of novel hERG-Neutral antihypertensive oxazalone and imidazolone derivatives and analysis of their potential restrictive effects on cell proliferation. Eur J Med Chem 2017; 145:273-290. [PMID: 29329002 DOI: 10.1016/j.ejmech.2017.12.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 12/05/2017] [Accepted: 12/06/2017] [Indexed: 12/13/2022]
Abstract
AT1 antagonists is the most recent drug class of molecules against hypertension and they mediate their actions through blocking detrimental effects of angiotensin II (A-II) when acts on type I (AT1) A-II receptor. The effects of AT1 antagonists are not limited to cardiovascular diseases. AT1 receptor blockers may be used as potential anti-cancer agents - due to the inhibition of cell proliferation stimulated by A-II. Therefore, AT1 receptors and the A-II biosynthesis mechanisms are targets for the development of new synthetic drugs and therapeutic treatment of various cardiovascular and other diseases. In this work, multi-scale molecular modeling approaches were performed and it is found that oxazolone and imidazolone derivatives reveal similar/better interaction energy profiles compared to the FDA approved sartan molecules at the binding site of the AT1 receptor. In silico-guided designed hit molecules were then synthesized and tested for their binding affinities to human AT1 receptor in radioligand binding studies, using [125I-Sar1-Ile8] AngII. Among the compounds tested, 19d and 9j molecules bound to receptor in a dose response manner and with relatively high affinities. Next, cytotoxicity and wound healing assays were performed for these hit molecules. Since hit molecule 19d led to deceleration of cell motility in all three cell lines (NIH3T3, A549, and H358) tested in this study, this molecule is investigated in further tests. In two cell lines (HUVEC and MCF-7) tested, 19d induced G2/M cell cycle arrest in a concentration dependent manner. Adherent cells detached from the plates and underwent cell death possibly due to apoptosis at 19d concentrations that induced cell cycle arrest.
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Affiliation(s)
- Serdar Durdagi
- Computational Biology and Molecular Simulations Laboratory, Department of Biophysics, School of Medicine, Bahcesehir University (BAU), Istanbul, Turkey; Neuroscience Program, Graduate School of Health Sciences, Bahcesehir University, Istanbul, Turkey.
| | - Busecan Aksoydan
- Computational Biology and Molecular Simulations Laboratory, Department of Biophysics, School of Medicine, Bahcesehir University (BAU), Istanbul, Turkey; Neuroscience Program, Graduate School of Health Sciences, Bahcesehir University, Istanbul, Turkey
| | - Ismail Erol
- Computational Biology and Molecular Simulations Laboratory, Department of Biophysics, School of Medicine, Bahcesehir University (BAU), Istanbul, Turkey; Department of Chemistry, Gebze Technical University, Kocaeli, Turkey
| | - Isik Kantarcioglu
- Computational Biology and Molecular Simulations Laboratory, Department of Biophysics, School of Medicine, Bahcesehir University (BAU), Istanbul, Turkey; Bioengineering Program, Graduate School of Natural and Applied Sciences, Bahcesehir University, Istanbul, Turkey
| | - Yavuz Ergun
- Department of Chemistry, Dokuz Eylul University, Izmir, Turkey
| | - Gulay Bulut
- Department of Molecular Biology and Genetics, Bahcesehir University, Istanbul, Turkey
| | - Melih Acar
- Department of Medical Biology, School of Medicine, Bahcesehir University (BAU), Istanbul, Turkey
| | - Timucin Avsar
- Department of Medical Biology, School of Medicine, Bahcesehir University (BAU), Istanbul, Turkey; Neuroscience Program, Graduate School of Health Sciences, Bahcesehir University, Istanbul, Turkey
| | - George Liapakis
- Department of Pharmacology, Faculty of Medicine, University of Crete, Greece
| | - Vlasios Karageorgos
- Department of Pharmacology, Faculty of Medicine, University of Crete, Greece
| | - Ramin E Salmas
- Computational Biology and Molecular Simulations Laboratory, Department of Biophysics, School of Medicine, Bahcesehir University (BAU), Istanbul, Turkey
| | - Barış Sergi
- Department of Molecular Biology and Genetics, Bahcesehir University, Istanbul, Turkey
| | - Sara Alkhatib
- Bioengineering Program, Graduate School of Natural and Applied Sciences, Bahcesehir University, Istanbul, Turkey
| | - Gizem Turan
- Neuroscience Program, Graduate School of Health Sciences, Bahcesehir University, Istanbul, Turkey
| | - Berfu Nur Yigit
- Neuroscience Program, Graduate School of Health Sciences, Bahcesehir University, Istanbul, Turkey
| | - Kutay Cantasir
- School of Medicine, Bahcesehir University, Istanbul, Turkey
| | - Bahar Kurt
- School of Medicine, Bahcesehir University, Istanbul, Turkey
| | - Turker Kilic
- Department of Neurosurgery, School of Medicine, Bahcesehir University, Istanbul, Turkey
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Bulut G, Erten R, Almali AO, Bulut MD, Bayram I. Tonsillar solitary fibrous tumour: A interesting rare case. J PAK MED ASSOC 2017; 67:476-479. [PMID: 28304006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A solitary fibrous tumour (SFT) is a rare mesenchymal tumour that frequently originates in the mesothelium-covered surfaces, such as the pleura and peritoneum. It may develop in various body parts, including the head and neck. These tumours may arise in several different patterns, which results in difficulties in diagnosing them. This case is a solitary tumour developing from the palatine tonsil in a 17-year-old male patient; it is the second case in the literature. The tumour has the histopathological characteristics of a patternless pattern, a slight pleomorphism, and a composition of hypercellular and hypocellular sites. Immunohistochemically, the tumour cells showed a strong positive staining with CD34, Bcl-2, and vimentin. No recurrence developed in the patient's approximately 18-month-long follow-up period.
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Affiliation(s)
- Gulay Bulut
- Department of Pathology, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey
| | - Remzi Erten
- Department of Pathology, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey
| | - Ayse Oter Almali
- Department of Pathology, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey
| | - Mehmet Deniz Bulut
- Department of Radiology, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey
| | - Irfan Bayram
- Department of Pathology, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey
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Beyazal Celiker F, Turan A, Beyazal M, Tmel Eroglu H, Bulut G, Colcimen N, Beyazal Polat H. Squamous cell carcinoma arising from teratoma of the ovary: magnetic resonance, computed tomography, and pathological findings. EUR J GYNAECOL ONCOL 2017; 38:139-142. [PMID: 29767884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In the present case report, the authors investigated the clinicopathological characteristics of squamous cell carcinoma (SCC) arising from teratoma of the ovary and intended to report their clinical experience. Malignant transformation of ovarian teratoma is a quite rare condition with SCC observed to be the most common form of transformation. The present case was a 43-year-old female patient and her clinical presentation was abdominal pain, abdominal distension, and abdominal mass sensation. The patient underwent ultrasonography. After detection of a mass, magnetic resonance imaging (MRI) was performed. Surgery was performed on the patient and the pathological report revealed SCC arising from teratoma. The patient was evaluated retrospectively in terms of demographic characteristics, MRI, surgical findings, and prognosis.
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Ozkol H, Bulut G, Balahoroglu R, Tuluce Y, Ozkol HU. Protective Effects of Selenium, N-Acetylcysteine and Vitamin E Against Acute Ethanol Intoxication in Rats. Biol Trace Elem Res 2017; 175:177-185. [PMID: 27250492 DOI: 10.1007/s12011-016-0762-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Accepted: 05/24/2016] [Indexed: 12/11/2022]
Abstract
The aim of this study was to determine possible protective influences of selenium (Se), N-acetylcysteine (NAC), and vitamin E (Vit E) against acute ethanol (EtOH) intoxication. Thirty-six rats were divided into six groups: I (control), II (EtOH), III (EtOH + Se), IV (EtOH + Vit E), V (EtOH + NAC), and VI (EtOH + mix). Except group I, EtOH was given the other pretreated (groups III, IV, V, and VI) and untreated groups (group II). Compared with the EtOH group, serum aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, lactate dehydrogenase, creatine kinase, and creatine kinase-MB levels were significantly decreased in all pretreated groups, whereas slightly diminished amylase and lipase were observed. Compared with the control group, a remarkably lower total antioxidant status (TAS), but higher total oxidant status (TOS), and oxidative stress index (OSI) were seen in brain, liver, and kidney tissues. The values of these parameters were less affected from EtOH-exposed brain tissue of EtOH + NAC and liver of EtOH + mix groups. Both significant decrease of catalase activity and marked increases of adenosine deaminase and myeloperoxidase were determined only in liver tissue of the EtOH group. Activities of these enzymes were restored in almost all pretreated groups. Moreover, an increase of xanthine oxidase activity was prevented in brain tissue of pretreated groups. In histopathological examination of the liver, hydropic degeneration, sinusoidal dilatation, mononuclear cell infiltration, and marked congestion, which were seen in the EtOH group, were prevented in all pretreated groups. Relative protection against acute EtOH toxicity, in both single and combined pretreatments of Se, NAC, and Vit E supplementation, was probably through antioxidant and free radical-neutralizing effects of foregoing materials.
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Affiliation(s)
- Halil Ozkol
- Department of Medical Biology, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey
| | - Gulay Bulut
- Department of Pathology, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey
| | - Ragıp Balahoroglu
- Department of Biochemistry, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey
| | - Yasin Tuluce
- Department of Medical Biology, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey
| | - Hatice Uce Ozkol
- Department of Dermatology, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey.
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Bulut G, Kosem M, Bulut MD, Erten R, Bayram I. Is Immunohistochemical Sex Hormone Binding Globulin Expression Important in the Differential Diagnosis of Adenocarcinomas? Asian Pac J Cancer Prev 2016; 16:8203-10. [PMID: 26745061 DOI: 10.7314/apjcp.2015.16.18.8203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Adenocarcinomas (AC) are the most frequently encountered carcinomas. It may be quite challenging to detect the primary origin when those carcinomas metastasize and the first finding is a metastatic tumor. This study evaluated the role of sex hormone binding globulin (SHBG) positivity in tumor cells in the subclassification and detection of the original organ of adenocarcinomas. Between 1994 and 2008, 64 sections of normal tissue belonging to ten organs, and 116 cases diagnosed as adenoid cystic carcinoma and mucoepidermoid carcinoma of the salivary gland, lung adenocarcinoma, invasive ductal carcinoma of the breast, adenocarcinoma of stomach, colon, gallbladder, pancreas and prostate, endometrial adenocarcinoma and serous adenocarcinoma and mucinous adenocarcinoma of the ovary, were sent to the laboratory at the Department of Pathology at the Yuzuncu Yil University School of Medicine, where they were stained immunohistochemically, using antibodies against SHBG. The SHBG immunoreactivity in both the tumor cells and normal cells, together with the type, diffuseness and intensity of the staining were then evaluated. In the differential diagnosis of the adenocarcinomas of the organs, including the glandular structures, impressively valuable results are encountered in the tumor cells, whether the SHBG immunopositivity is evaluated alone or together with other IHC markers. Further extensive research with a larger number of cases, including instances of cholangiocarcinoma and cervix uteri AC [which we could not include in the study for technical reasons] should be performed, in order to appropriately evaluate the role of SHBG in the differential diagnosis of AC.
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Affiliation(s)
- Gulay Bulut
- Department of Pathology, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey E-mail :
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Bulut G, Basbugan Y, Arı E, Alp HH, Bayram I. SP177PARICALCITOL MAY IMPROVE OXIDATIVE DNA DAMAGE ON EXPERIMENTAL AMIKACIN-INDUCED NEPHROTOXICITY MODEL. Nephrol Dial Transplant 2016. [DOI: 10.1093/ndt/gfw161.10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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16
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Bulut G, Arı E, Basbugan Y, Alp HH, Bayram I. MP184THE EFFECT OF VITAMIN E PROPHYLAXIS ON EXPERIMENTAL AMIKACIN-INDUCED NEPHROTOXICITY MODEL. Nephrol Dial Transplant 2016. [DOI: 10.1093/ndt/gfw186.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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17
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Bulut G, Basbugan Y, Ari E, Erten R, Bektas H, Alp HH, Bayram I. Paricalcitol may improve oxidative DNA damage on experimental amikacin-induced nephrotoxicity model. Ren Fail 2016; 38:751-8. [DOI: 10.3109/0886022x.2016.1158071] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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Bulut G, Erten R, Buğday İ, Bulut MD, Bayram İ, Toktaş O. Synchronized occurrence of oncocytic variant of papillary carcinoma of the thyroid and esophageal squamous cell carcinoma metastasis: case report. J Clin Exp Invest 2016. [DOI: 10.5799/ahinjs.01.2015.04.0557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Olmez S, Can A, Yavuz A, İliklerden UH, Bulut G. Esophageal Lymphoepithelioma-Like Carcinoma with Unique Daisy-Like Appearance. Clin Endosc 2015; 48:549-52. [PMID: 26668803 PMCID: PMC4676671 DOI: 10.5946/ce.2015.48.6.549] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Accepted: 02/18/2015] [Indexed: 11/29/2022] Open
Abstract
Due to differences in prognosis and management, it is important to subclassify esophageal carcinoma. Esophageal lymphoepithelioma-like carcinoma (LELC) is extremely rare, with only a few cases reported to date. Review of the literature revealed case reports describing lesions with similar histology. We present a 69-year-old man with a giant pedunculated-polypoid lesion of the esophagus shrinking the lumen. Endoscopic excision of the tumor was performed and final histopathological diagnosis was confirmed to be LELC. In contrast to a previous case with a more aggressive course and a recurrent lesion, our patient died of his disease within 8 months of diagnosis. Here we discuss the endoscopic and radiologic findings of the case and a review of the literature.
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Affiliation(s)
- Sehmus Olmez
- Department of Gastroenterology, Yuzuncu Yil University Medical Faculty, Van, Turkey
| | - Alper Can
- Department of Medical Oncology, Yuzuncu Yil University Medical Faculty, Van, Turkey
| | - Alpaslan Yavuz
- Department of Radiology, Yuzuncu Yil University Medical Faculty, Van, Turkey
| | | | - Gulay Bulut
- Department of Pathology, Yuzuncu Yil University Medical Faculty, Van, Turkey
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Arısoy A, Ekin S, Gunbatar H, Sertogullarından B, Huseyin A, Bulut G, Yildiz H, Erten R, Demirkiran H. Endobronchial tumors presenting as asthma. Respir Care 2015; 59:E115-7. [PMID: 24368865 DOI: 10.4187/respcare.02871] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Bulut G, Kurdoglu Z, Dönmez YB, Kurdoglu M, Erten R. Effects of jnk inhibitor on inflammation and fibrosis in the ovary tissue of a rat model of polycystic ovary syndrome. Int J Clin Exp Pathol 2015; 8:8774-8785. [PMID: 26464620 PMCID: PMC4583852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 07/23/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVE In our study, we aimed to investigate the effects of Jun N-terminal kinase inhibitor (SP600125) on fibrosis and inflammation in rats with polycystic ovary syndrome (PCOS). METHOD 50 Wistar-albino rats were divided into five groups (n=10 each): control group, sham group, PCOS group, SP600125+ PCOS group and SP600125 group. In the estradiol valerate (EV)-treated group in which PCOS was injected with a single 4 mg/kg i.p. of EV in 0.2 ml sesame oil and the rats were sacrificed on day 60. The estradiol valerate (EV)-treated + SP600125-treated group was injected with a single 4 mg/kg i.p. of EV in 0.2 ml sesame oil. As of day 60, the treatment group was additionally given 15 mg/kg i.p. of SP600125 once daily for 4 consecutive days and the rats were sacrificed on day 65. Histopathological findings (ovarian morphology, edema, inflammatory cell infiltration, vascular congestion and hyperemia) and collagen type IV immunoexpression were assessed. RESULTS The SP600125+ PCOS group showed a significant level of improvement in ovarian follicle morphology, edema, inflammatory infiltrate, vascular congestion and hyperemia as compared with the PCOS group. Furthermore, collagen type IV immunoexpression showed a significant reduction in staining intensity on the theca cell layer and ovary stroma as compared to the PCOS group. CONCLUSION This study demonstrates the therapeutic effect of SP600125 in the prevention of PCOS in an experimental model.
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Affiliation(s)
- Gulay Bulut
- Department of Pathology, Yuzuncu Yil University Faculty of MedicineVan, Turkey
| | - Zehra Kurdoglu
- Department of Obstetrics and Gynecology, Ankara Education and Research HospitalAnkara, Turkey
| | - Yeliz Bozdemir Dönmez
- Department of Histology and Embryology, Faculty of Medicine, Namık Kemal UniversityTekirdag-Turkey
| | - Mertihan Kurdoglu
- Department of Obstetrics and Gynecology, Faculty of Medicine, Gazi UniversityAnkara, Turkey
| | - Remzi Erten
- Department of Pathology, Yuzuncu Yil University Faculty of MedicineVan, Turkey
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Bulut G, Bulut MD, Bahadır I, Kotan Ç. Bronchogenic cyst mimicking an adrenal mass in the retroperitoneal region: report of a rare case. INDIAN J PATHOL MICR 2015; 58:96-8. [PMID: 25673605 DOI: 10.4103/0377-4929.151200] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
We report the surgical excision of a retroperitoneal bronchogenic cyst that presented as a nonfunctioning left adrenal mass in a 25-year-old woman with continuous pain in the left flank. Preoperative biochemical testing confirmed that the mass was nonfunctional. Bronchogenic cysts are mostly benign congenital abnormalities that originate from the remnants of the primitive foregut and typically occur in the lung. Subdiaphragmatic and especially, retroperitoneal locations are rare. Despite the rarity of this pathologic entity, bronchogenic cysts should be considered in the differential diagnosis of retroperitoneal cystic lesions. Diagnosis must be definitively confirmed by histology.
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Affiliation(s)
- Gulay Bulut
- Department of Pathology, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey
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Affiliation(s)
- Hatice Uce Ozkol
- Department of Dermatology, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey
| | - Gulay Bulut
- Department of Pathology, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey
| | - Sibel Gumus
- Department of General Surgery, Van Regional Training and Research Hospital, Van, Turkey
| | - Omer Calka
- Department of Dermatology, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey
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Celik H, Han J, Hong SH, Bulut G, Toretsky J, Uren A. Abstract 3979: NSC305787 inhibits specific protein–protein interactions involving ezrin in osteosarcoma cells. Cancer Res 2014. [DOI: 10.1158/1538-7445.am2014-3979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Osteosarcoma (OS) is the malignant tumor of bone that is most common in children and adolescents. OS is characterized by a high propensity for metastasis, especially to lungs, which is the main cause of death. The membrane-cytoskeleton cross-linker ezrin plays a key role in the metastatic progression of OS. In our earlier studies, we discovered that a small molecule, NSC305787, directly binds to ezrin and inhibits its function related to metastatic phenotype. In order to gain a better insight into the molecular mechanisms of NSC30787 action, an affinity pull-down coupled mass spectrometry was conducted to find the putative ezrin-interacting proteins whose interaction with ezrin is decreased or lost in the presence of NSC305787. Detailed mass spectrometry analysis identified 78 proteins after filtering for the potential background contaminants. Out of 78 proteins, 9 proteins were known ezrin-binding proteins including ezrin, radixin, moesin, polyadenylate-binding protein 1 (PABP-1), Na(+)/H(+) exchange regulatory cofactor (NHERF1/EPB-50), calpains, epidermal growth factor receptor kinase substrate 8 (EPS8), protein kinase C ioto (PKC-ioto) and focal adhesion kinase (FAK). For the remaining 69 proteins, we immunoprecipitated ezrin from K7M2 OS cells, and then western blotted for 8 selected functionally relevant proteins in order to test the validity of our approach. Of these 8 candidate proteins, Co-IP experiments verified binding of ezrin to 5 novel binding partners including DDX3 RNA helicase, caprin-1, AEG-1/MTDH/LYRIC, Rho guanine nucleotide exchange factor 2 (GEFH1) and catenin delta-1 (p120-catenin). NSC305787 effectively reduced the binding of DDX3 RNA helicase, AEG-1/MTDH/LYRIC and GEFH1 to ezrin in Co-IP experiments. Direct binding of ezrin to DDX3 RNA helicase was also demonstrated by surface plasmon resonance analysis using Biacore instrument. In conclusion, our results suggest that NSC305787 can modulate ezrin function through blocking its interaction with crucial proteins involved in adhesion, migration, invasion and survival. We also identified novel ezrin interactors that are involved in different levels of mRNA metabolism suggesting a completely new molecular function of ezrin that is independent from its classic role as a membrane cytoskeletal cross-linker at the plasma membrane. Thus, these results highlight novel molecular mechanisms for ezrin in cancer metastasis.
Citation Format: Haydar Celik, Jenny Han, Sung-Hyeok Hong, Gulay Bulut, Jeffrey Toretsky, Aykut Uren. NSC305787 inhibits specific protein–protein interactions involving ezrin in osteosarcoma cells. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 3979. doi:10.1158/1538-7445.AM2014-3979
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Affiliation(s)
- Haydar Celik
- 1Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC
| | - Jenny Han
- 1Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC
| | - Sung-Hyeok Hong
- 1Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC
| | - Gulay Bulut
- 2Department of Genetics and Bioinformatics, Faculty of Arts and Sciences, Bahcesehir University, Istanbul, Turkey
| | - Jeffrey Toretsky
- 1Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC
| | - Aykut Uren
- 1Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC
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Kurdoglu Z, Cetin O, Bulut G, Erten R, Gulsen I, Sahin HG. Management of haemangiopericytoma located in the spinal cord diagnosed during pregnancy. J OBSTET GYNAECOL 2014; 35:310-1. [PMID: 25141072 DOI: 10.3109/01443615.2014.949228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Dulger AC, Karadas S, Gonullu H, Beyazal M, Bulut G, Gultepe B. Can D-dimer levels predict the treatment outcome in a patient with tuberculosis? J PAK MED ASSOC 2014; 64:833-836. [PMID: 25255598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Tuberculous peritonitis is a leading cause of mortality and morbidity particularly in the developing world. Delay in initiation of treatment distinctively increases mortality. Treatment response to anti-tuberculosis drugs is usually observed by regression of symptoms and clearance of ascites. With initiation of treatment, laboratory values including CA-125 levels generally return to normal levels in 3 months. However, there is still no consensus about treatment response during the follow-up period. Serum D-dimer level is used as an inflammation marker in some cases. A case with Tuberculous peritonitis successfully monitorised by serum D-dimer levels is presented.
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Olmez S, Aslan M, Yavuz A, Bulut G, Dulger AC. Diffuse nodular lymphoid hyperplasia of the small bowel associated with common variable immunodeficiency and giardiasis: a rare case report. Wien Klin Wochenschr 2014; 126:294-7. [PMID: 24647448 DOI: 10.1007/s00508-014-0525-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Accepted: 02/08/2014] [Indexed: 12/16/2022]
Abstract
Diffuse nodular lymphoid hyperplasia (DNLH) of the intestine is an extremely rare lymphoproliferative disorder of uncertain etiology. Typically, numerous polypoid nodules composed of hyperplastic benign lymphoid tissue are present in the small and/or large intestinal mucosa. DNLH has been observed in association with common variable immunodeficiency (CVID). A 38-years-old man was admitted to our clinic due to dyspeptic complaints. An upper gastrointestinal system endoscopic examination revealed DNLH in the duodenum. A biopsy specimen showed the presence of nodular lymphoid hyperplasia and a Giardia lamblia infection in the duodenum. CVID was suspected, and the diagnosis was established by demonstrating a significant reduction in the serum gamma-globulin levels. DNLH is a rare benign condition with regards to diagnosis and treatment of unknown etiology. In patients with DNLH, screening for the immune deficiencies is being important in addition to histopathological examinations.
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Affiliation(s)
- Sehmus Olmez
- Department of Gastroenterology, Medical Faculty,Yuzuncu Yil Universitesi, 65000, Van, Turkey,
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Donmez S, Pamuk ON, Gedik M, A K R, Bulut G. A case of granulomatosis with polyangiitis and pyoderma gangrenosum successfully treated with infliximab and rituximab. Int J Rheum Dis 2014; 17:471-5. [PMID: 24460826 DOI: 10.1111/1756-185x.12274] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Here, we present a young male patient who was admitted with alveolar hemorrhage, arthritis and cutaneous lesions, who later developed bilateral orbital involvement and pyoderma gangrenosum (PG). He also had pathergy test positivity. The patient was refractory to conventional immunosuppressive therapy. Therefore, multiple devastating PG lesions and disease activity in granulomatosis with polyangiitis (GPA) were controlled with infliximab. Later, rituximab was used with success to prevent recurrence of symptoms. The relationship of PG with various autoimmune diseases is known; however, PG in GPA has been only rarely reported. Biologic agents might prove to be effective in GPA and PG patients who are refractory to standard immunosuppressive therapy.
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Affiliation(s)
- Salim Donmez
- Department of Rheumatology, Trakya University Medical Faculty, Edirne, Turkey
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Kurdoglu Z, Kurdoglu M, Ay EG, Bulut G. Nonfunctional Pelvic Retroperitoneal Paraganglioma Mimicking Postmenopausal Adnexal Mass. Electron J Gen Med 2014. [DOI: 10.15197/sabad.1.11.26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Abstract
Chemotherapy-induced acral erythema (CIAE) is a cutaneous response to diverse chemotherapeutic drug administration. These drugs cause symmetrical and painful erythema of palmoplantar surfaces. Bulla formation, desquamation, and subsequent reepithelialization may occur. Commonly, the lesions slowly resolve over 7-15 days, through desquamation, followed by regeneration of the skin. Here, we described a case of CIAE, with involvement of face and neck in a patient treated for breast cancer using a number of chemotherapeutic agents. Face involvement in CIAE has not been previously reported in the literature.
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Affiliation(s)
- Hatice Uce Ozkol
- Department of Dermatology, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey
| | - Omer Calka
- Department of Dermatology, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey
| | - Gulay Bulut
- Department of Pathology, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey
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Abstract
Fixed drug eruption (FDE) is a rare form of drug allergies that recur at the same cutaneous or mucosal site in every usage of drug. Single or multiple round, sharply demarcated and dusky red plaques appear soon after drug exposure. Ursodeoxycholic acid (UDCA: 3α,7β-dihydroxy-5β-cholanic acid) is used for the treatment of cholestatic liver diseases. Some side effects may be observed, such as diarrhea, dyspepsia, pruritus and headaches. We encountered only three cases of lichenoid reaction regarding the use of UDCA among previous studies. In this article, we reported a generalized FDE case related to UDCA intake in a 59-year-old male patient with cholestasis for the first time in the literature.
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Cakar B, Bulut G, Kisim A, Bozkurt E, Atmaca H, Uzunoglu S, Uslu R, Karaca B. AT-101 (-/- Gossypol) in Combination with Trastuzumab Triggers Apoptosis Through Inhibiting BCL-2, BCL-XL AND MCL-1 Protein Levels in Human HER2-Positive Breast Cancer Cells. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt086.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Abstract
In Henoch-Schönlein purpura (HSP), involvement of the ileum and ascending colon with vasculitis can mimic appendicitis and cause unnecessary appendicectomy. A 13-year-old boy presented with signs of HSP and abdominal pain. He was treated with prednisolone (2 mg/kg/day) for 10 days, but there was no improvement. At laparotomy he had acute suppurative appendicitis. A 12-year-old girl presented with HSP associated with abdominal pain and bloody diarrhoea and at laparotomy was also found to have suppurative appendicitis. Both patients had vasculitic areas in the ileum. In HSP, although suppurative appendicitis is rare, it should always be considered and appropriate investigations, including ultrasonography, undertaken.
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Affiliation(s)
- Salim Bilici
- Departments of Pediatric Surgery, Yuzuncu Yil University School of Medicine, Van, Turkey
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Eşki F, Taşal İ, Mis L, Uslu B, Comba B, Bulut G, Şendağ S, Çetin N. Experimental investigation of the immunocastration efficacy of a single dose GnRH vaccine in male rats. Reprod Biol 2013. [DOI: 10.1016/j.repbio.2013.01.112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Karadag AS, Calka O, Bilgili SG, Karadag R, Bulut G. GAPO syndrome associated with pyoderma vegetans: an unreported co-existence. Genet Couns 2013; 24:133-139. [PMID: 24032282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
GAPO syndrome is a rare autosomal recessive disease and an acronym composed of growth retardation, alopecia, pseudoanodontia, optic atrophy. Approximately 38 cases have been reported in literature until now. Pyoderma vegetans is a chronic inflammatory disease characterized with vesicopustular, exudative and vegetative lesions usually localized on face, scalp, axilla and genitalia. Pyoderma vegetans is attributed to a bacterial infection frequently occurring in individuals with an underlying immunosuppressive condition. A 30-year-old female patient was admitted to our clinic with complaint of a hemorrhagic, crusted, exudative vegetative two plaques on the scalp. On her physical examination, she had a prematurely aged face, predominant lower lips, total tooth loss, frontal bossing, enlarged anterior fontanelle, marked scalp veins, micrognatia, depressed nasal bridge, short stature, growth retardation. She was diagnosed as GAPO syndrome as the result of her physical examination. Result of the biopsy taken from scalp was evaluated as pyoderma vegetans. And the diagnosis of pyoderma vegetans was established based on the correlate of both clinical and histopathologic findings. Pyoderma vegetans coexisting with GAPO syndrome has not been reported previously. Thus we wished to report it.
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Affiliation(s)
- A S Karadag
- Department of Dermatology, Yuzuncu Yil University, Faculty of Medicine, Van, Turkey.
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Ari E, Kedrah AE, Alahdab Y, Bulut G, Eren Z, Baytekin O, Odabasi D. Antioxidant and renoprotective effects of paricalcitol on experimental contrast-induced nephropathy model. Br J Radiol 2012; 85:1038-43. [PMID: 22815410 DOI: 10.1259/bjr/16327485] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES The aim of the study was to assess the effect of paricalcitol on the experimental contrast-induced nephropathy (CIN) model. We hypothesised that paricalcitol may prevent CIN. METHODS 32 Wistar albino rats were divided into four groups (n=8 each): control group, paricalcitol group, CIN group and paricalcitol plus CIN group. Paricalcitol (0.4 µg kg(-1) day(-1)) was given intraperitoneally for 5 consecutive days prior to induction of CIN. CIN was induced at day 4 by intravenous injection of indometacin (10 mg kg(-1)), Nω-nitro-L-arginine methyl ester (L-NAME, 10 mg kg(-1)) and meglumine amidotrizoate (6 ml kg(-1)). Renal function parameters, oxidative stress biomarkers, histopathological findings and vascular endothelial growth factor (VEGF) immunoexpression were evaluated. RESULTS The paricalcitol plus CIN group had lower mean serum creatinine levels (p=0.034) as well as higher creatinine clearance (p=0.042) than the CIN group. Serum malondialdehyde and kidney thiobarbituric acid-reacting substances levels were significantly lower in the paricalcitol plus CIN group than in the CIN group (p=0.024 and p=0.042, respectively). The mean scores of tubular necrosis (p=0.024), proteinaceous casts (p=0.038), medullary congestion (p=0.035) and VEGF immunoexpression (p=0.018) in the paricalcitol plus CIN group were also significantly lower. CONCLUSION This study demonstrates the protective effect of paricalcitol in the prevention of CIN in an experimental model.
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Affiliation(s)
- E Ari
- Department of Nephrology, Van Yuksek Ihtisas Hospital, Van, Turkey.
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Bilgili SG, Karadag AS, Calka O, Bulut G, Cecen I. Widespread hyperpigmented and hyperkeratotic plaques following lines of Blaschko. Indian J Dermatol Venereol Leprol 2012; 78:403-5. [PMID: 22565454 DOI: 10.4103/0378-6323.95475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Serap Gunes Bilgili
- Department of Dermatology, Yuzuncu Yil University, Faculty of Medicine, Van, Turkey.
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Abstract
Fixed drug eruption (FDE) usually develops after oral administration and is described as a cutaneous reaction recurring at the same location each time the drug is taken. Olopatadine is both a H1 histamine receptor antagonist and a mast cell stabilizer, indicated for the treatment of allergic conjunctivitis. Here, we report a 14-year-old male patient who developed FDE localised on the lateral side of periorbital rim bilaterally, whilst applying olopatadine 0.1% ophthalmic solution for the treatment of allergic conjunctivitis. As far as we know, FDE due to olopatadine has not been previously reported in the literature. We deem it appropriate to report this case because FDE that results from the application of topical drugs is a rare event in the literature.
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Affiliation(s)
- SG Bilgili
- Department of Dermatology, Yuzuncu Yil University, Van, Turkey
| | - AS Karadag
- Department of Dermatology, Yuzuncu Yil University, Van, Turkey
| | - R Karadag
- Department of Ophtalmology, Yuzuncu Yil University, Van, Turkey
| | - G Bulut
- Department of Pathology, Cardiovascular Training and Research Hospital, Van, Turkey
| | - O Calka
- Department of Dermatology, Yuzuncu Yil University, Van, Turkey
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Kosturko GW, Bulut G, Hong SH, Rodriguez V, Brown M, Toretsky J, Khanna C, Paige M, Uren A. Abstract 3906: Design, synthesis and biological evaluation of 2nd generation ezrin inhibitors for metastatic osteosarcoma. Cancer Res 2012. [DOI: 10.1158/1538-7445.am2012-3906] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Though advancements in chemotherapy and surgical techniques have ameliorated treatment of primary osteosarcoma (OS), the metastatic phenotype remains a clinical challenge. Overall five-year survival rates for patients with localized OS have improved to 60-70%, yet survival rates of patients with metastasis remains at 20-30% with mortality linked to metastatis-induced respiratory failure. Therefore, targeting fundamental molecular events that lead to metastasis may yield significant benefit to patients with OS. Accumulating evidence from clinical samples and pre-clinical animal models suggests that ezrin is a key regulator in the metastasis of OS cells. Ezrin is a multifunctional protein that connects the actin cytoskeleton to extracellular matrix through transmembrane proteins and a critical component for cell motility, adhesion and shape. We have recently identified that a small molecule, NSC 668394 acts as a potent and selective inhibitor of ezrin function and inhibits migration in both in-vitro and in-vivo models. Moreover, suppression of ezrin phosphorylation by NSC 668394 significantly reduced the metastatic behavior in cellular and animal models and has thus emerged as an important lead inhibitor. Consequently, we conducted a series of structure-activity-relationship (SAR) studies that monitored direct binding; OS cell migration and HUVEC monolayer invasion in ‘real-time’ with surface-plasmon resonance and electrical impedance technology. From our 2nd generation library, we have designed novel candidate inhibitors which feature enhanced ezrin-binding affinity, and improved anti-migration and anti-invasion activities. In addition to their potency against the different stages of OS metastasis, these compounds possess other desirable attributes for development including good druggable physical-chemical characteristics and are currently undergoing further preclinical evaluation.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 103rd Annual Meeting of the American Association for Cancer Research; 2012 Mar 31-Apr 4; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2012;72(8 Suppl):Abstract nr 3906. doi:1538-7445.AM2012-3906
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Affiliation(s)
| | - Gulay Bulut
- 1Lombardi Comprehensive Cancer Center, Washington, DC
| | | | | | - Milton Brown
- 1Lombardi Comprehensive Cancer Center, Washington, DC
| | | | | | - Mikell Paige
- 1Lombardi Comprehensive Cancer Center, Washington, DC
| | - Aykut Uren
- 1Lombardi Comprehensive Cancer Center, Washington, DC
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Murdoch JT, Hong SH, Bulut G, Kosturko GW, Drebing LE, Toretsky JA, Uren A. Abstract 4874: Small molecule inhibitor of ezrin inhibits metastasis in a transgenic mouse model of osteosarcoma. Cancer Res 2012. [DOI: 10.1158/1538-7445.am2012-4874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Osteosarcoma is the predominant primary bone cancer in children with a low survival rate due to pulmonary metastasis. Research on the molecular mechanism driving pulmonary metastasis implicates the cytoskeletal protein ezrin as the critical component of the disease pathology. Ezrin links the actin cytoskeleton to the plasma membrane proteins, and its overexpression is associated with poor survival in patients and increased invasion in osteosarcoma cell lines. We used surface plasmon resonance technology to screen small molecule libraries for compounds directly binding to ezrin. Two molecules, NSC305787 and NSC668394, were chosen based on their ezrin binding affinities and ability to inhibit ezrin in multiple functional, biochemical, cellular, and in vivo assays. To test the anti-metastatic activity of these molecules in vivo, we utilized a tissue-specific transgenic mouse model expressing Cre recombinase to excise the Retinoblastoma (Rb) and p53 tumor suppressor genes in osteoblast progenitor cells. These animals develop spontaneous osteosarcoma with 100% penetrance and high frequency of liver and lung metastases, mimicking human disease. We tested the anti-metastatic potential of ezrin inhibitors that we discovered, NSC305787 and NSC668394, in this clinically relevant mouse model. We started the treatment on one group of animals at 2 months of age before any detectable tumor is present and on a second group of animals only after detection of smallest palpable tumor. Animals in each group were randomly assigned to one of three treatment options: DMSO (Control), NSC305787, or NSC668394. Animals were observed for primary tumor growth and metastasis formation. All animals were euthanized when primary tumor volume reached 2.0cm3, when animals had severe cachexia, or when animals showed signs of pulmonary insufficiency. Mice treated with NSC305787 and NSC668394 did not show any changes in the growth of their primary tumors and experienced similar survival times. However, our results suggest that NSC305787 inhibits osteosarcoma metastasis to lungs as confirmed by histopathological analysis. Therefore, when combined with adjuvant chemotherapy and surgical resection of the primary tumor, targeting ezrin with small molecules may yield a positive outcome and greater survival in a clinical setting.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 103rd Annual Meeting of the American Association for Cancer Research; 2012 Mar 31-Apr 4; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2012;72(8 Suppl):Abstract nr 4874. doi:1538-7445.AM2012-4874
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Abstract
Toxic epidermal necrolysis (TEN) is rare, life-threatening skin disorder that usually is caused by an adverse drug reaction. The exact pathogenesis of TEN is still unknown. Many treatments including prednisolone, cyclosporine and intravenous immunoglobulin (IVIG) can be used to halt the disease process. We present a 12-year-old girl with epilepsy who developed TEN after about 14 days of lamotrigine treatment. Lamotrigine was immediately discontinued. After receiving systemic corticosteroid treatment, the patient had a complete recovery. Antiepileptic-induced TEN can be mortal in some cases. Thus, we would like to point out the importance of early diagnosis and treatment.
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Affiliation(s)
- O Calka
- Department of Dermatology, Yuzuncu Yil University Faculty of Medicine, Van, Turkey
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Bilgili SG, Karadag AS, Karadag R, Akdeniz N, Bulut G, Calka O. Incontinentia pigmenti with ocular involvement: two cases. Genet Couns 2012; 23:57-63. [PMID: 22611643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Incontinentia pigmenti (IP) is a rare, X-linked dominant disorder that presents at or soon after birth and presents with cutaneous signs and symptoms. Besides its typical skin signs presenting in all patients, central nervous system (CNS), ophthalmologic and dental involvement are encountered as well. In this report, we present two patients at the verrucous stage of IP and review the literature concerning the diagnosis and course of IP.
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Affiliation(s)
- S G Bilgili
- Department of Dermatology, Yuzuncu Yil University Faculty of Medicine, Van, Turkey.
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Abstract
Lipoma is the most common mesenchymal tumors that accounts for about 6% of all soft-tissue tumors in children. The lesion size is usually around 1-2 cm that rarely reaches the bigger diameter. A 14-month-old baby girl was brought to our clinic for a progressively growing lesion on the left shoulder. The lesion started 4 months ago, and then was rapidly growing that caused pain and movement restriction. On the same site, there was a scar of BCG vaccination. The clinical and histopathological findings of the lesion were consistent with lipoma. The lesion was totally resected with no recurrence within 12 months. There are several complications related to BCG vaccination. However, the occurrence of lipoma on BCG vaccine caused scar has not been reported in literature. We reported this case because of its rarity and to emphasize that lipoma can present as a giant lesion in child.
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Affiliation(s)
- Serap Gunes Bilgili
- Faculty of Medicine, Department of Dermatology, Yuzuncu Yil University, Van, Turkey.
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Kurdoglu M, Kurdoglu Z, Ozen S, Kucukaydin Z, Bulut G, Erten R, Kamaci M. Expression of laminin receptor 1 in human placentas from normal and preeclamptic pregnancies and its relationship with the severity of preeclampsia. J Perinat Med 2011; 39:411-6. [PMID: 21391874 DOI: 10.1515/jpm.2011.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
OBJECTIVES To investigate the expression of laminin receptor 1 (LR1), a non-integrin-type laminin receptor, in preeclamptic and normal third-trimester placentas, as well as to investigate whether its expression differs with disease severity. STUDY DESIGN Third trimester placental samples obtained from deliveries of preeclamptic (n=34) and normotensive healthy pregnant women (n=35) were immunohistochemically studied for the expression of LR1. The placentas from both mild (n=14) and severe (n=20) preeclamptic pregnancies were further assessed for strength of LR1 expression according to disease severity. RESULTS When compared with normal placentas, the staining with LR1 protein in cytotrophoblasts and syncytiotrophoblasts was lower in preeclamptic placentas (P<0.05 and P<0.01, respectively). The intensity of staining with LR1 in decidual cells, cytotrophoblasts, syncytiotrophoblasts, and extracellular matrix cells of preeclamptic placentas did not vary with disease severity (P>0.05). CONCLUSIONS Decreased LR1 expression in cytotrophoblasts and syncytiotrophoblasts of preeclamptic placentas, which may be independent of disease severity, might have a role in shallow trophoblastic invasion in preeclampsia.
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Affiliation(s)
- Mertihan Kurdoglu
- Department of Obstetrics and Gynecology, Yuzuncu Yil University School of Medicine, Van, Turkey.
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Dulger AC, Kemik O, Begenik H, Sumer A, Bulut D, Bulut G. Synchronous Esophageal Squamous Cell Carcinoma and Esophageal Variceal Bleeding due to Idiopathic Portal Hypertension: A Case Report. Gastroenterology Res 2011; 4:84-87. [PMID: 27942320 PMCID: PMC5139760 DOI: 10.4021/gr300e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/15/2011] [Indexed: 11/03/2022] Open
Abstract
Squamous cell carcinomas of esophagus are responsible for more than 80% of esophageal malignancies in Turkey. Idiopathic portal hypertension is a rare underlying cause of esophageal variceal bleeding. In such cases, detection of concomitant esophageal squamous cell cancer is also a rare occurrence. We report an unusual case of bleeding esophageal varices secondary to idiopathic portal hypertension associated with esophageal squamous cell cancer. To our knowledge, until now, there have been no reported cases of esophageal variceal bleeding due to idiopathic portal hypertension associated with esophageal squamous cell cancer. This case report demonstrates the two different conditions which may cause esophageal bleeding and there may be an association between idiopathic portal hypertension and esophageal squamous cell cancer.
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Affiliation(s)
| | - Ozgur Kemik
- Yuzuncu Yil University School of Medicine, General Surgery, Van, Turkey
| | - Huseyin Begenik
- Yuzuncu Yil University School of Medicine, Internal Medicine, Van, Turkey
| | - Aziz Sumer
- Yuzuncu Yil University School of Medicine, General Surgery, Van, Turkey
| | - Deniz Bulut
- Yuzuncu Yil University School of Medicine, Radiology, Van, Turkey
| | - Gulay Bulut
- Yuzuncu Yil University School of Medicine, Pathology, Van, Turkey
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Sümer A, Kemik &O, Dülger AC, Olmez A, Hasirci I, Kişli E, Bayrak V, Bulut G, Kotan &C. Outcome of surgical treatment of intestinal perforation in typhoid fever. World J Gastroenterol 2010; 16:4164-8. [PMID: 20806433 PMCID: PMC2932920 DOI: 10.3748/wjg.v16.i33.4164] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To represent our clinical experience in the treatment of intestinal perforation arising from typhoid fever.
METHODS: The records of 22 surgically-treated patients with typhoid intestinal perforation were evaluated retrospectively.
RESULTS: There were 18 males and 4 females, mean age 37 years (range, 8-64 years). Presenting symptoms were fever, abdominal pain, diarrhea or constipation. Sixteen cases were subjected to segmental resection and end-to-end anastomosis, while 3 cases received 2-layered primary repair following debridement, one case with multiple perforations received 2-layered primary repair and end ileostomy, one case received segmental resection and end-to-end anastomosis followed by an end ileostomy, and one case received segmental resection and end ileostomy with mucous fistula operation. Postoperative morbidity was seen in 5 cases and mortality was found in one case.
CONCLUSION: Intestinal perforation resulting from Salmonella typhi is an important health problem in Eastern and Southeastern Turkey. In management of this illness, early and appropriate surgical intervention is vital.
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Bulut G, Chen K, Glasgow E, Hong SH, Lee HS, Kosturko G, Toretsky JA, Daar I, Khanna C, Uren A. Abstract 1550: Small molecule inhibitors of ezrin as anti-metastatic agents in osteosarcoma. Cancer Res 2010. [DOI: 10.1158/1538-7445.am10-1550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Osteosarcoma (OS) is the most common type of primary bone cancer and the third most common cancer in children and adolescents. Current combination modalities have improved OS treatment, but did not have a major improvement on patient survival. Thus targeting underlying molecular events can provide dramatic benefits especially for the treatment of patients with fatal metastatic disease. Recently it is shown in a mouse model of OS that high ezrin expression is linked to pulmonary metastasis, providing an early survival advantage for cancer cells reaching the lung. Ezrin, a member of the ERM (Ezrin/Radixin/Moesin) family is conserved through evolution both structurally and functionally. By regulating membrane-cytoskeleton complexes, it plays key roles in normal cellular processes like maintenance of membrane dynamics, survival, adhesion, motility, cytokinesis, phagocytosis and integration of membrane transport with signaling pathways. Due to its critical role in these cellular functions and relevance to metastasis, ezrin is a validated molecular target for prevention of metastasis in OS. In order to identify small molecules that directly interact with recombinant ezrin protein, we screened a small molecule library by surface plasmon resonance technology (Biacore). Initial hits from this primary screen were then evaluated in functional assays. We tested our small molecules for inhibiting ezrin mediated chemotaxis in cell culture, mimicking ezrin morpholino phenotype in zebrafish development, inhibiting ezrin phosphorylation and ezrin-actin interaction, effecting xenopus embryo development and inhibiting lung metastasis of osteosarcoma cells in a mouse lung organ culture assay. Results from these secondary functional assays, binding kinetics values from Biacore experiments and drugability of the chemical structures allowed us to pick two lead compounds. In summary, we discovered two lead compounds that directly bind to ezrin protein with ∼10uM affinity and inhibit its function in multiple independent assays. These molecules form the foundation of new potential therapeutic agents for osteosarcoma metastasis.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 101st Annual Meeting of the American Association for Cancer Research; 2010 Apr 17-21; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2010;70(8 Suppl):Abstract nr 1550.
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Affiliation(s)
- Gulay Bulut
- 1Georgetown Lombardi Comp. Cancer Ctr., Washington, DC
| | - Kevin Chen
- 1Georgetown Lombardi Comp. Cancer Ctr., Washington, DC
| | - Eric Glasgow
- 1Georgetown Lombardi Comp. Cancer Ctr., Washington, DC
| | | | | | | | | | - Ira Daar
- 3National Cancer Institute, Frederick, MD
| | | | - Aykut Uren
- 1Georgetown Lombardi Comp. Cancer Ctr., Washington, DC
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Kurdoglu M, Bayram I, Kolusari A, Erten R, Adali E, Bulut G, Yildizhan R, Kurdoglu Z, Kucukaydin Z, Sahin HG. Expression of laminin receptor 1 in gestational trophoblastic diseases and normal placenta and its relationship with the development of postmolar tumors. Gynecol Oncol 2009; 114:306-9. [DOI: 10.1016/j.ygyno.2009.05.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2009] [Revised: 05/02/2009] [Accepted: 05/08/2009] [Indexed: 10/20/2022]
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