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Yaras S, Demir M, Barutcu S, Yildirim AE, Gurel S, Ucbilek E, Kurtulmus IA, Kayhan MA, Vatansever S, Adanir H, Danis N, Duman S, Turan I, Ari D, Kose S, Alkim H, Harputluoglu MM, Dilber F, Akyildiz M, Cosar AM, Durak S, Sirin G, Kefeli A, Gokcan H, Avcioglu U, Ayyildiz T, Sezgin O, Akarsu M, Dincer D, Guzelbulut F, Gunsar F, Akarca US, Idilman R. The efficacy and tolerability of glecaprevir/pibrentasvir treatment in a real-world chronic hepatitis C patients cohort. Hepatol Forum 2023; 4:92-96. [PMID: 37822314 PMCID: PMC10564251 DOI: 10.14744/hf.2023.2023.0001] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 06/02/2023] [Accepted: 06/13/2023] [Indexed: 10/13/2023]
Abstract
Background and Aim The aims of the present study were to evaluate the real-life efficacy and tolerability of glecaprevir (GLE)/pibrentasvir (PIB) in the treatment of patients with chronic hepatitis C (CHC). Materials and Methods Between May 2019 and May 2022, 686 patients with CHC, treated with GLE/PIB combination from 21 participating centers in Turkiye, were enrolled in the study. Results All patients were Caucasian, and their median age was 56 years. At the start of GLE/PIB treatment, the median serum Hepatitis C virus RNA and serum alanine amino transaminase (ALT) levels were 6.74 log10 IU/mL and 47 U/L, respectively. Fifty-three percent of the patients were infected with genotype 1b, followed by genotype 3 (17%). Diabetes was the more common concomitant disease. The sustained virological response (SVR12) was 91.4% with intent-to-treat analysis and 98.5% with per protocol analysis. The SVR12 rates were statistically significant differences between the patients who were i.v. drug users and non-user (88.0% vs. 98.8%, p=0.025). From the baseline to SVR12, the serum ALT levels and Model for End-Stage Liver Disease score were significantly improved (p<0.001 and p=0.014, respectively). No severe adverse effect was observed. Conclusion GLE/PIB is an effective and tolerable treatment in patients with CHC.
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Affiliation(s)
- Serkan Yaras
- Department of Gastroenterology, Mersin University, School of Medicine, Mersin, Turkiye
| | - Mehmet Demir
- Department of Gastroenterology, Mustafa Kemal University, School of Medicine, Hatay, Turkiye
| | - Sezgin Barutcu
- Department of Medical Sciences, Gaziantep University, School of Medicine, Gaziantep, Turkiye
| | | | - Selim Gurel
- Department of Internal Medicine, Uludag University, School of Medicine, Bursa, Turkiye
| | - Enver Ucbilek
- Department of Gastroenterology, Mersin University, School of Medicine, Mersin, Turkiye
| | | | - Meral Akdogan Kayhan
- Division of Gastroenterology, Department of Internal Medicine, Faculty of Health Sciences, Ankara City Hospital, Ankara, Turkiye
| | - Sezgin Vatansever
- Department of Gastroenterology, Katip Celebi University, Ataturk Training and Research Hospital, Izmir, Turkiye
| | - Haydar Adanir
- Department of Internal Medicine, Akdeniz University, School of Medicine, Antalya, Turkiye
| | - Nilay Danis
- Division of Gastroenterology and Hepatology, Department of Medicine, Johns Hopkins University, Baltimore, USA
| | - Serkan Duman
- Department of Gastroenterology, Toros State Hospital, Mersin, Turkiye
| | - Ilker Turan
- Department of Gastroenterology, Ege University, School of Medicine, Izmir, Turkiye
| | - Derya Ari
- Division of Gastroenterology, Department of Internal Medicine, Faculty of Health Sciences, Ankara City Hospital, Ankara, Turkiye
| | - Sukran Kose
- Department of Infectious Diseases and Clinical Microbiology, Dokuz Eylul University, School of Medicine, Izmir, Turkiye
| | - Huseyin Alkim
- Department of Gastroenterology, Sisli Etfal Training and Research Hospital, Istanbul, Turkiye
| | | | - Feyza Dilber
- Department of Gastroenterology, Marmara University, School of Medicine, Istanbul, Turkiye
| | - Murat Akyildiz
- Department of Gastroenterology, Koc University, School of Medicine, Istanbul, Turkiye
| | - Arif Mansur Cosar
- Department of Gastroenterology, Karadeniz Technical University, School of Medicine, Trabzon, Turkiye
| | - Serdar Durak
- Department of Gastroenterology, Karadeniz Technical University, School of Medicine, Trabzon, Turkiye
| | - Goktug Sirin
- Department of Gastroenterology, Kocaeli University, School of Medicine, Kocaeli, Turkiye
| | - Ayse Kefeli
- Department of Gastroenterology, Tokat Gaziosmanpasa University, School of Medicine, Tokat, Turkiye
| | - Hale Gokcan
- Department of Gastroenterology, Ankara University, School of Medicine, Ankara, Turkiye
| | - Ufuk Avcioglu
- Department of Gastroenterology, Ondokuz Mayis University, School of Medicine, Samsun, Turkiye
| | - Talat Ayyildiz
- Department of Gastroenterology, Ondokuz Mayis University, School of Medicine, Samsun, Turkiye
| | - Orhan Sezgin
- Department of Gastroenterology, Mersin University, School of Medicine, Mersin, Turkiye
| | - Mesut Akarsu
- Department of Gastroenterology, Dokuz Eylul, School of Medicine, Izmir, Turkiye
| | - Dinc Dincer
- Department of Gastroenterology, Akdeniz University, School of Medicine, Antalya, Turkiye
| | - Fatih Guzelbulut
- Departments of Gastroenterology and Pathology, Haydarpasa Numune Training and Research Hospital, Istanbul, Turkiye
| | - Fulya Gunsar
- Department of Gastroenterology, Ege University, School of Medicine, Izmir, Turkiye
| | - Ulus Salih Akarca
- Department of Gastroenterology, Ege University, School of Medicine, Izmir, Turkiye
| | - Ramazan Idilman
- Department of Gastroenterology, Ankara University, School of Medicine, Ankara, Turkiye
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Kandemir A, Taşkıran İ, Vatansever S, Çelik M, Yavaşoğlu İ, Türe M, Coşkun A, Yaşa MH. Therapeutic Plasma Exchange and Conservative Treatment Comparison in Patients with Hypertriglyceridemia-induced Acute Pancreatitis. meandros 2021. [DOI: 10.4274/meandros.galenos.2021.54815] [Citation(s) in RCA: 1] [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] [Indexed: 12/01/2022]
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Dogan I, Gürbüz M, Paksoy N, Khanmamadov N, Vatansever S, Saip P, Demirkazik A, Aydiner A. 19P Predictors of osimertinib response at second-line treatment in EGFR mutant non-small cell lung cancer patients with acquired T790M resistance mutation. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.2015] [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: 10/20/2022] Open
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Pakoz ZB, Sari SO, Vatansever S, Uran BNO, Camyar H, Gur EO, Gumus ZZ, Akbulut S. Ineffective esophageal motility assessment in patients with and without pathological esophageal acid reflux. Medicine (Baltimore) 2021; 100:e26054. [PMID: 34011121 PMCID: PMC8137047 DOI: 10.1097/md.0000000000026054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Accepted: 05/03/2021] [Indexed: 11/25/2022] Open
Abstract
Ineffective esophageal motility (IEM), defined as minor esophageal motility disorder, is also the most common esophageal motility disorder. The relationship between gastro-esophageal reflux disease is still controversial. Our aim in this study is to evaluate whether there are differences in terms of demographic, endoscopic, or motility findings between IEM patients with pathological esophageal acid reflux and physiological reflux.Patients diagnosed with IEM according to the Chicago classification v3 with high-resolution manometry (HRM) before acid monitoring constituted the study group of our investigation. The patients were divided into 2 groups as patients with pathological esophageal reflux and patients with physiological reflux according to 24-hour acid monitoring. Demographic data, endoscopic findings, and HRM findings were compared between 2 groups.A total of 62 patients who were diagnosed with IEM according to the Chicago classification v3 were included in the study. Patients in the physiological reflux group were 7 years younger on average than the pathological reflux group. Esophagitis rates were significantly higher in the pathological reflux group (P = .033). Lower esophageal sphincter resting pressure, integrated relaxation pressure, and the presence of hernia were found to be similar in the 2 groups (P = 392, P = 182, P = 657, respectively). The rate of severe IEM was also similar between the 2 groups (P = .143).The fact that the physiological reflux patient group is younger may suggest that the IEM develops in the early period and then reflux accompanies the picture with advancing age.
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Affiliation(s)
- Zehra Betul Pakoz
- Department of Gastroenterology, Ataturk Training and Research Hospital
| | - Sevil Ozer Sari
- Department of Gastroenterology, Tepecik Training and Research Hospital
| | - Sezgin Vatansever
- Department of Gastroenterology, Ataturk Training and Research Hospital
| | | | | | | | - Zeynep Zehra Gumus
- Department of Internal Medicine, Katip Celebi University Faculty of Medicine, Izmir
| | - Sabiye Akbulut
- Department of Gastroenterology, University of Health Sciences, Kartal Kosuyolu High Speciality Training and Research Hospital, Istanbul, Turkey
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Günay S, SarıtaşYüksel E, Topal F, Paköz B, Çekiç C, Çamyar H, Vatansever S. Dissection of mucosa and muscularis mucosa instead of submucosal dissection: rapid retroflow of the injection fluid can be an indicator. Endoscopy 2021; 53:E122-E123. [PMID: 32707582 DOI: 10.1055/a-1216-0448] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- Süleyman Günay
- Department of Gastroenterology, Katip Çelebi University, Atatürk Training and Research Hospital, İzmir, Turkey
| | - Elif SarıtaşYüksel
- Department of Gastroenterology, Katip Çelebi University, Atatürk Training and Research Hospital, İzmir, Turkey
| | - Firdevs Topal
- Department of Gastroenterology, Katip Çelebi University, Atatürk Training and Research Hospital, İzmir, Turkey
| | - Betül Paköz
- Department of Gastroenterology, Katip Çelebi University, Atatürk Training and Research Hospital, İzmir, Turkey
| | - Cem Çekiç
- Department of Gastroenterology, Katip Çelebi University, Atatürk Training and Research Hospital, İzmir, Turkey
| | - Hakan Çamyar
- Department of Gastroenterology, Katip Çelebi University, Atatürk Training and Research Hospital, İzmir, Turkey
| | - Sezgin Vatansever
- Department of Gastroenterology, Katip Çelebi University, Atatürk Training and Research Hospital, İzmir, Turkey
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Dogan I, Gürbüz M, Paksoy N, Ferhatoğlu F, Vatansever S, Saip P, Demirkazik A, Aydiner A. 155P Predictors of treatment response in ALK-positive metastatic non-small cell lung cancer. J Thorac Oncol 2021. [DOI: 10.1016/s1556-0864(21)01997-3] [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: 11/16/2022]
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Değertekin B, Demir M, Akarca US, Kani HT, Üçbilek E, Yıldırım E, Güzelbulut F, Balkan A, Vatansever S, Danış N, Demircan M, Soylu A, Yaras S, Kartal A, Kefeli A, Gündüz F, Yalçın K, Erarslan E, Aladağ M, Harputluoğlu M, Özakyol A, Temel T, Akarsu M, Sümer H, Akın M, Albayrak B, Sen İ, Alkım H, Uyanıkoğlu A, Irak K, Öztaşkın S, Uğurlu ÇB, Güneş Ş, Gürel S, Nuriyev K, İnci İ, Kaçar S, Dinçer D, Doğanay L, Göktürk HS, Mert A, Coşar AM, Dursun H, Atalay R, Akbulut S, Balkan Y, Koklu H, Şimşek H, Özdoğan O, Çoban M, Poturoğlu Ş, Ayyıldız T, Yapalı S, Günsar F, Akdoğan M, Özenirler S, Akyıldız M, Sezgin O, Özdoğan O, Kaymakoğlu S, Beşışık F, Karasu Z, İdilman R. Real-world efficacy and safety of Ledipasvir + Sofosbuvir and Ombitasvir/Paritaprevir/Ritonavir ± Dasabuvir combination therapies for chronic hepatitis C: A Turkish experience. Turk J Gastroenterol 2020; 31:883-893. [PMID: 33626001 PMCID: PMC7928249 DOI: 10.5152/tjg.2020.20696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 10/09/2020] [Indexed: 01/01/2023]
Abstract
BACKGROUND/AIMS This study aimed to evaluate the real-life efficacy and tolerability of direct-acting antiviral treatments for patients with chronic hepatitis C (CHC) with/without cirrhosis in the Turkish population. MATERIAL AND METHODS A total of 4,352 patients with CHC from 36 different institutions in Turkey were enrolled. They received ledipasvir (LDV) and sofosbuvir (SOF)±ribavirin (RBV) orombitasvir/paritaprevir/ritonavir±dasabuvir (PrOD)±RBV for 12 or 24 weeks. Sustained virologic response (SVR) rates, factors affecting SVR, safety profile, and hepatocellular cancer (HCC) occurrence were analyzed. RESULTS SVR12 was achieved in 92.8% of the patients (4,040/4,352) according to intention-to-treat and in 98.3% of the patients (4,040/4,108) according to per-protocol analysis. The SVR12 rates were similar between the treatment regimens (97.2%-100%) and genotypes (95.6%-100%). Patients achieving SVR showed a significant decrease in the mean serum alanine transaminase (ALT) levels (50.90±54.60 U/L to 17.00±14.50 U/L) and model for end-stage liver disease (MELD) scores (7.51±4.54 to 7.32±3.40) (p<0.05). Of the patients, 2 were diagnosed with HCC during the treatment and 14 were diagnosed with HCC 37.0±16.0 weeks post-treatment. Higher initial MELD score (odds ratio [OR]: 1.92, 95% confidence interval [CI]: 1.22-2.38; p=0.023]), higher hepatitis C virus (HCV) RNA levels (OR: 1.44, 95% CI: 1.31-2.28; p=0.038), and higher serum ALT levels (OR: 1.38, 95% CI: 1.21-1.83; p=0.042) were associated with poor SVR12. The most common adverse events were fatigue (12.6%), pruritis (7.3%), increased serum ALT (4.7%) and bilirubin (3.8%) levels, and anemia (3.1%). CONCLUSION LDV/SOF or PrOD±RBV were effective and tolerable treatments for patients with CHC and with or without advanced liver disease before and after liver transplantation. Although HCV eradication improves the liver function, there is a risk of developing HCC.
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Affiliation(s)
- Bülent Değertekin
- Division of Gastroenterology and Hepatology, Acibadem Mehmet Ali Aydinlar University School of Medicine, İstanbul, Turkey
| | - Mehmet Demir
- Division of Gastroenterology Mustafa Kemal University School of Medicine, Hatay, Turkey
| | - Ulus S. Akarca
- Division of Gastroenterology and Hepatology, Ege University School of Medicine, İzmir, Turkey
| | - Haluk Tarık Kani
- Division of Gastroenterology and Hepatology, Marmara University School of Medicine, İstanbul, Turkey
| | - Enver Üçbilek
- Division of Gastroenterology, Mersin University School of Medicine, Mersin, Turkey
| | - Emre Yıldırım
- Division of Gastroenterology, Gaziantep University School of Medicine, Gaziantep, Turkey
| | - Fatih Güzelbulut
- Division of Gastroenterology, Haydarpasa Numune Training and Research Hospital, İstan-bul, Turkey
| | - Ayhan Balkan
- Division of Gastroenterology, Gaziantep University School of Medicine, Gaziantep, Turkey
| | - Sezgin Vatansever
- Division of Gastroenterology, Kâtip Celebi University, İzmir, Turkey
| | - Nilay Danış
- Division of Gastroenterology and Hepatology, Ege University School of Medicine, İzmir, Turkey
| | - Melek Demircan
- Division of Gastroenterology, Eskisehir Osmangazi University School of Medicine, Eskişehir, Turkey
| | - Aliye Soylu
- Division of Gastroenterology, Health Sciences University Bakırkoy Hospital, İstanbul, Turkey
| | - Serkan Yaras
- Division of Gastroenterology, Mersin University School of Medicine, Mersin, Turkey
| | - Aysun Kartal
- Division of Gastroenterology and Hepatology, Ankara University School of Medicine, Ankara, Turkey
| | - Ayşe Kefeli
- Division of Gastroenterology, Tokat Gaziosmanpasa University School of Medicine, Tokat, Turkey
| | - Feyza Gündüz
- Division of Gastroenterology and Hepatology, Marmara University School of Medicine, İstanbul, Turkey
| | - Kendal Yalçın
- Division of Gastroenterology and Hepatology, Dicle University School of Medicine, Diyarbakır, Turkey
| | - Elife Erarslan
- Division of Gastroenterology, Dışkapı Trainining and Research Hospital, Ankara, Turkey
| | - Murat Aladağ
- Division of Gastroenterology and Hepatology, İnonu University School of Medicine, Malatya, Turkey
| | - Murat Harputluoğlu
- Division of Gastroenterology and Hepatology, İnonu University School of Medicine, Malatya, Turkey
| | - Ayşegül Özakyol
- Division of Gastroenterology, Eskisehir Osmangazi University School of Medicine, Eskişehir, Turkey
| | - Tuncer Temel
- Division of Gastroenterology, Eskisehir Osmangazi University School of Medicine, Eskişehir, Turkey
| | - Mesut Akarsu
- Division of Gastroenterology and Hepatology, Dokuz Eylül University School of Medicine, İzmir, Turkey
| | - Hale Sümer
- Division of Gastroenterology, Ankara City Hospital, Ankara, Turkey
| | - Mete Akın
- Division of Gastroenterology, Akdeniz University School of Medicine, Antalya, Turkey
| | - Bülent Albayrak
- Division of Gastroenterology, Akdeniz University School of Medicine, Antalya, Turkey
| | - İlker Sen
- Division of Gastroenterology, Health Sciences University, Şişli Etfal Hospital, İstanbul, Turkey
| | - Hüseyin Alkım
- Division of Gastroenterology, Health Sciences University, Şişli Etfal Hospital, İstanbul, Turkey
| | - Ahmet Uyanıkoğlu
- Division of Gastroenterology, Harran University School of Medicine, Urfa, Turkey
| | - Kader Irak
- Division of Gastroenterology, Kanuni Sultan Suleyman Training and Research Hospital, İstanbul, Turkey
| | - Sinem Öztaşkın
- Division of Gastroenterology and Hepatology, İstanbul University School of Medicine, İstanbul Turkey
| | - Çağrı Burak Uğurlu
- Division of Gastroenterology and Hepatology, İstanbul University School of Medicine, İstanbul Turkey
| | - Şevkican Güneş
- Division of Gastroenterology and Hepatology, İstanbul University School of Medicine, İstanbul Turkey
| | - Selim Gürel
- Division of Gastroenterology and Hepatology, Uludag University School of Medicine, Bursa, Turkey
| | - Kenan Nuriyev
- Division of Gastroenterology and Hepatology, İstanbul University School of Medicine, İstanbul Turkey
| | - İsmail İnci
- Division of Gastroenterology and Hepatology, İstanbul University School of Medicine, İstanbul Turkey
| | - Sabite Kaçar
- Division of Gastroenterology, Ankara City Hospital, Ankara, Turkey
| | - Dinç Dinçer
- Division of Gastroenterology, Akdeniz University School of Medicine, Antalya, Turkey
| | - Levent Doğanay
- Division of Gastroenterology, Umraniye Training and Research Hospital, İstanbul, Turkey
| | | | - Ali Mert
- Division of Infectious Diseases, Istanbul Medipol University School of Medicine, İstanbul Turkey
| | - Arif Mansur Coşar
- Division of Gastroenterology, Karadeniz Technical University School of Medicine, Trabzon, Turkey
| | - Hakan Dursun
- Division of Gastroenterology, Ataturk University, School of Medicine, Erzurum, Turkey
| | - Roni Atalay
- Division of Gastroenterology, Ankara City Hospital, Ankara, Turkey
| | - Sabiye Akbulut
- Division of Gastroenterology, Kartal Kosuyolu Yüksek İhtisas Training and Research Hospital, İstanbul, Turkey
| | - Yasemin Balkan
- Division of İnfectious Diseases, Gaziantep 25 Aralık Government Hospital, Gaziantep, Turkey
| | - Hayrettin Koklu
- Division of Gastroenterology and Hepatology, Hacettepe University School of Medicine, Ankara, Turkey
| | - Halis Şimşek
- Division of Gastroenterology and Hepatology, Hacettepe University School of Medicine, Ankara, Turkey
| | - Osman Özdoğan
- Division of Gastroenterology, Mersin University School of Medicine, Mersin, Turkey
| | - Mehmet Çoban
- Division of Gastroenterology, Ufuk University School of Medicine, Ankara, Turkey
| | - Şule Poturoğlu
- Division of Gastroenterology, Haseki Training and Research Hospital, İstanbul, Turkey
| | - Talat Ayyıldız
- Division of Gastroenterology, Ondokuz Mayıs University School of Medicine, Samsun, Turkey
| | - Suna Yapalı
- Division of Gastroenterology and Hepatology, Acibadem Mehmet Ali Aydinlar University School of Medicine, İstanbul, Turkey
| | - Fulya Günsar
- Division of Gastroenterology and Hepatology, Ege University School of Medicine, İzmir, Turkey
| | - Meral Akdoğan
- Division of Gastroenterology, Ankara City Hospital, Ankara, Turkey
| | - Seren Özenirler
- Division of Gastroenterology, Gazi University School of Medicine, Ankara, Turkey
| | - Murat Akyıldız
- Department of Gastroenterology, Organ Transplantation Center, Memorial Atasehir Hospital, İstanbul, Turkey
| | - Orhan Sezgin
- Division of Gastroenterology, Mersin University School of Medicine, Mersin, Turkey
| | - Osman Özdoğan
- Division of Gastroenterology and Hepatology, Marmara University School of Medicine, İstanbul, Turkey
| | - Sabahattin Kaymakoğlu
- Division of Gastroenterology and Hepatology, İstanbul University School of Medicine, İstanbul Turkey
| | - Fatih Beşışık
- Division of Gastroenterology and Hepatology, İstanbul University School of Medicine, İstanbul Turkey
| | - Zeki Karasu
- Division of Gastroenterology and Hepatology, Ege University School of Medicine, İzmir, Turkey
| | - Ramazan İdilman
- Division of Gastroenterology and Hepatology, Ankara University School of Medicine, Ankara, Turkey
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Erdag E, Mulazim Y, Becer E, Vatansever S, Kesanli B. Studies on new 2(3H)-benzoxazolone derivatives: synthesis, characterization and cytotoxic effects. J Biotechnol 2019. [DOI: 10.1016/j.jbiotec.2019.05.285] [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: 10/25/2022]
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Karaman S, Dagoglu R, Kaval G, Buyuk M, Yanar H, Keskin M, Vatansever S, Karabulut S, Gulluoglu M, Kizir A, Oral E. Can Neoadjuvant Rectal Cancer (NAR) Score As A Survival Predictor after Short Course Radiotherapy? Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.2137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Vatansever S, Farajov R, Yılmaz HC, Zeytunlu M, Kılıç M. The efficiency of low-dose hepatitis B immunoglobulin plus nucleos(t)ide analogs in preventing posttransplant hepatitis B virus recurrence. Turk J Med Sci 2019; 49:1019-1024. [PMID: 31385669 PMCID: PMC7018359 DOI: 10.3906/sag-1808-86] [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
Background/aim In this study, the efficiency of using low-dose hepatitis B immunoglobulin (HBIG) plus antiviral treatment according to individual needs has been evaluated in posttransplant hepatitis B virus (HBV) patients. Materials and methods We retrospectively evaluated 179 patients who were admitted between 2009 and 2014. Five thousand IU intravenous HBIG was given in the anhepatic phase, and 400 IU/day intramuscular (IM) HBIG was given in the posttransplant period. After HBsAg seroconversion, 400 IU IM HBIG was continued as prophylaxis every two weeks. Results The average follow-up period was 26 (2–65) months. Seventy patients had hepatocellular carcinoma (HCC). The HBV recurrence was 4.5% in the first year, and 5.8% in the third year. The HBsAg became negative in 11 (2–63) days, and anti-HBs became positive in 9 (1–31) days. HBsAg positivity occurred in 6 patients during the follow-up period. Five of these patients were those who underwent transplantation due to HCC. In 5 of the HCC patients, in whom HBsAg became positive, tumor recurrence was observed after 0.3–9.9 months. HBsAg positivity was more frequently detected in patients with HCC (P = 0.009). Conclusion The HBV recurrence should be evaluated as a predictor of the HCC recurrence in patients who were transplanted due to HCC.
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Affiliation(s)
- Sezgin Vatansever
- Department of Gastroenterology, Atatürk Training and Research Hospital, İzmir Katip Çelebi University, İzmir, Turkey
| | - Rasim Farajov
- Department of Liver Transplantation, Kent Hospital, İzmir, Turkey
| | | | - Murat Zeytunlu
- Department of Liver Transplantation, Kent Hospital, İzmir, Turkey
| | - Murat Kılıç
- Department of Liver Transplantation, Kent Hospital, İzmir, Turkey
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Vatansever S, Farajov R, Yılmaz HC, Zeytunlu M, Paköz ZB, Kılıç M. Hepatitis B and hepatocellular carcinoma recurrence after living donor liver transplantation: The role of the Milan criteria. Turk J Gastroenterol 2019; 30:75-80. [PMID: 30644364 DOI: 10.5152/tjg.2018.18794] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND/AIMS The aim of this study was to evaluate the effect of the Milan criteria on the hepatitis B virus (HBV) and hepatocellular carcinoma (HCC) recurrence in patients who underwent living donor liver transplantation due to HBV-induced cirrhosis and HCC. MATERIALS AND METHODS We evaluated a total of 142 patients, 88 who underwent transplantation due to HBV-induced cirrhosis and 54 due to HCC, between 2009 and 2014. In the posttranplant period, after the HBsAg seroconversion, 400 IU of hepatitis B immunoglobulin were applied intramuscularly every 2 weeks, and daily nucleos(t)ide analogs were continued as prophylaxis. The HBV recurrence was defined as the presence of HBsAg in serum. Patients were screened for alpha-fetoprotein levels and imaging for evaluation of HCC recurrence. RESULTS The average follow-up period was 26 (2-65) months. Fifty-four patients had HCC. The HCC recurrence was observed in 12 patients during the follow-up period. The HBV recurrence was observed in four patients. Three of the patients who developed HBV recurrence had liver transplantation due to HCC. Tumor recurrence was observed 1.4-12 months following the HBV recurrence. The HCC recurrence within the Milan criteria and beyond the Milan criteria was 0% vs. 28.4 % in the first year and 3.4% vs. 47.5% in the third year. The cumulative incidence of the HBV recurrence was 2.8% and 3.7% for the first year and 3.7% for the third year. The HBV recurrence was more frequently detected in patients with HCC (p=0.048), especially with HCC beyond the Milan criteria (p=0.044). CONCLUSION The HBV recurrence should be evaluated as a predictor of the HCC recurrence in patients who underwent liver transplantation due to HCC with exceeding Milan criteria.
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Affiliation(s)
- Sezgin Vatansever
- Department of Gastroenterology, İzmir Katip Çelebi University Atatürk Training and Research Hospital, İzmir, TurkeyDepartment of Gastroenterology, İzmir Katip Çelebi University Atatürk Training and Research Hospital, İzmir, Turkey
| | - Rasim Farajov
- Department of Liver Transplantation, Kent Hospital, İzmir, Turkey
| | | | - Murat Zeytunlu
- Department of Liver Transplantation, Kent Hospital, İzmir, Turkey
| | - Zehra Betül Paköz
- Department of Gastroenterology, Tepecik Training and Research Hospital, İzmir, Turkey
| | - Murat Kılıç
- Department of Liver Transplantation, Kent Hospital, İzmir, Turkey
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Vatansever S, Paköz ZB, Ünsal B. Primer biliyer sirozda çölyak hastalığı birlikteliği. Ege Tıp Dergisi 2018. [DOI: 10.19161/etd.455438] [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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Karlitepe A, Kabadayi H, Vatansever S, Gurdal M, Gunduz C, Ercan G. Anti-cancer efficiency of natural killer cells differentiated from human adipose tissue-derived mesenchymal stem cells and transfected with miRNA150. Exp Oncol 2017; 39:212-218. [PMID: 28967637] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
AIM The aim of this study is to investigate the effects of miR150 transfection on NK-like cells differentiated from adipose tissue derived mesenchymal stem cells (AD-MSCs). METHODS NK-like cells were differentiated from AD-MSCs and activated by miR150 transfection. Transfected/non-transfected NK-like cells were characterized by immunohistochemical and RT-PCR analyzes. Apoptotic efficiency of the transfected/non-transfected NK-like cells on pancreatic cancer cells PANC1 were determined by TUNEL and RT-PCR. RESULTS In miR150-transfected cells, the increased expression of NK cell-specific genes such as GKMB, KIR2DL2, CD16, CD56, NKG2D, NKp46 and increased immunoreactivity of NK cell-specific surface marker CD314 (NKG2D) were evident. TUNEL assays showed that NK-like cells with/without transfection induced apoptosis in PANC1 cells in the same manner. The decrease in oncogene expression and the increase in the tumor suppressor gene expression in PANC1 cells upon co-culture with NK-like cells differentiated from AD-MSCs were more prominent following miRNA150 transfection. CONCLUSION It was shown in vitro that NK-like cells could be obtained by differentiation from AD-MSCs and their efficiency could be increased via miR150 transfection. The results are encouraging for further clinical studies in improvement of immunotherapeutic approaches for cancer therapy.
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Affiliation(s)
- A Karlitepe
- Department of Medical Biochemistry, Ege University Medical School, Izmir 35100, Turkey
| | - H Kabadayi
- Department of Histology and Embryology, Celal Bayar University Medical School, Manisa 45030, Turkey
| | - S Vatansever
- Experimental Health Sciences Research Center, Near East University, Mersin 33010, Turkey
| | - M Gurdal
- Department of Medical Biochemistry, Ege University Medical School, Izmir 35100, Turkey
| | - C Gunduz
- Department of Medical Biology, Ege University School of Medicine, Izmir 35100, Turkey
| | - G Ercan
- Department of Stem Cell, Ege University Institute of Health Sciences, Izmir 35100, Turkey
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Uygun A, Ozturk K, Demirci H, Oztuna A, Eren F, Kozan S, Yilmaz Y, Kurt O, Turker T, Vatansever S, Alper E, Unsal B. The association of nonalcoholic fatty liver disease with genetic polymorphisms: a multicenter study. Eur J Gastroenterol Hepatol 2017; 29:441-447. [PMID: 28253210 DOI: 10.1097/meg.0000000000000813] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Growing evidence suggests that multiple factors, such as insulin resistance, nutritional factors, gut microbiota, and hormones released from the adipose tissue, act together on genetically predisposed individuals. We aimed to investigate whether various single-nucleotide polymorphisms (SNPs) play a role in the development of nonalcoholic fatty liver disease (NAFLD) and severity of liver damage in the Anatolian population. METHODS Two hundred and sixteen patients with biopsy-proven NAFLD and 150 control participants, aged 18-70 years, were consecutively enrolled in this multicenter study. Blood samples were genotyped for the PNPLA3 (rs738409), IL28B (rs12979860, rs12980275, rs8099917), PPAR-α 227 ALA, PPAR-γ pro 12 ALA, SOD2 C47T, and LOX-1 IVS4-14 polymorphisms using the custom-made LightSNiP assays on a LightCycler 480 II instrument. RESULTS Genotypic distributions of PNPLA3 rs738409 SNPs were different between NAFLD and control participants, but not for other SNPs. The PNPLA3 rs738409 GG polymorphism was associated with a 27-fold increased risk of development of NAFLD (odds ratio=27.8, 95% confidence interval: 3.5-218.4; P=0.002). Patients with the PNPLA3 GG genotype had higher nonalcoholic fatty liver disease activity score levels compared with patients with the PNPLA3 CC genotype (P<0.005). NAFLD patients without fibrosis had a higher frequency of IL28B rs12979860 TT and rs12980275 GG genotypes compared with NAFLD patients with fibrosis (P<0.005). CONCLUSION The present study proposes that polymorphisms in the PNPLA3 gene have highly predictive value in the development of NAFLD and are independently associated with the severity of liver histology in patients with NAFLD. The results of this study suggest that IL28B rs12979860 TT or rs12980275 GG may play an important protective role against the development of advanced fibrosis and even cirrhosis.
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Affiliation(s)
- Ahmet Uygun
- Departments of aGastroenterologybGeneticscHealth Public and Epidemiology, Gulhane School of Medicine, AnkaradDepartment of Gastroenterology, Marmara University, IstanbuleDepartment of Gastroenterology, Katip Çelebi University, Izmir, Turkey
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Kılıç S, Özkaya E, Baykal C, Vatansever S. Vemurafenib-induced toxic epidermal necrolysis: Is it an emerging side-effect of the drug? J Eur Acad Dermatol Venereol 2017; 31:e354-e355. [PMID: 28150343 DOI: 10.1111/jdv.14150] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- S Kılıç
- Department of Dermatology and Venereology, Istanbul Medical Faculty, Istanbul University, 34093, Çapa-Istanbul, Turkey
| | - E Özkaya
- Department of Dermatology and Venereology, Istanbul Medical Faculty, Istanbul University, 34093, Çapa-Istanbul, Turkey
| | - C Baykal
- Department of Dermatology and Venereology, Istanbul Medical Faculty, Istanbul University, 34093, Çapa-Istanbul, Turkey
| | - S Vatansever
- Department of Medical Oncology, Institute of Oncology, Istanbul University, 34093, Çapa-Istanbul, Turkey
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Özdal-Kurt F, Şen B, Tuğlu I, Vatansever S, Türk B, Deliloğlu-Gürhan I. Attachment and growth of dental pulp stem cells on dentin in presence of extra calcium. Arch Oral Biol 2016; 68:131-41. [DOI: 10.1016/j.archoralbio.2016.04.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 11/29/2015] [Accepted: 04/26/2016] [Indexed: 12/22/2022]
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Zeybel M, Vatansever S, Hardy T, Sarı AA, Cakalağaoğlu F, Avcı A, Zeybel GL, Karahüseyinoğlu S, Bashton M, Mathers JC, Ünsal B, Mann J. DNA methylation profiling identifies novel markers of progression in hepatitis B-related chronic liver disease. Clin Epigenetics 2016; 8:48. [PMID: 27152124 PMCID: PMC4857425 DOI: 10.1186/s13148-016-0218-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [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] [Received: 12/11/2015] [Accepted: 04/28/2016] [Indexed: 12/19/2022] Open
Abstract
Background Chronic hepatitis B infection is characterized by hepatic immune and inflammatory response with considerable variation in the rates of progression to cirrhosis. Genetic variants and environmental cues influence predisposition to the development of chronic liver disease; however, it remains unknown if aberrant DNA methylation is associated with fibrosis progression in chronic hepatitis B. Results To identify epigenetic marks associated with inflammatory and fibrotic processes of the hepatitis B-induced chronic liver disease, we carried out hepatic genome-wide methylation profiling using Illumina Infinium BeadArrays comparing mild and severe fibrotic disease in a discovery cohort of 29 patients. We obtained 310 differentially methylated regions and selected four loci comprising three genes from the top differentially methylated regions: hypermethylation of HOXA2 and HDAC4 along with hypomethylation of PPP1R18 were significantly linked to severe fibrosis. We replicated the prominent methylation marks in an independent cohort of 102 patients by bisulfite modification and pyrosequencing. The timing and causal relationship of epigenetic modifications with disease severity was further investigated using a cohort of patients with serial biopsies. Conclusions Our findings suggest a linkage of widespread epigenetic dysregulation with disease progression in chronic hepatitis B infection. CpG methylation at novel genes sheds light on new molecular pathways, which can be potentially exploited as a biomarker or targeted to attenuate inflammation and fibrosis. Electronic supplementary material The online version of this article (doi:10.1186/s13148-016-0218-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Müjdat Zeybel
- Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK.,School of Medicine, Koç University Hospital, Koç University, 4th floor- M-4220. Davutpaşa Caddesi no: 4, 34010 Istanbul, Turkey
| | - Sezgin Vatansever
- Department of Gastroenterology and Hepatology, Katip Çelebi University, Atatürk Eğitim ve Araştırma Hastanesi, Izmir, Turkey
| | - Timothy Hardy
- Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Ayşegül Akder Sarı
- Department of Pathology, Katip Çelebi University, Atatürk Eğitim ve Araştırma Hastanesi, Izmir, Turkey
| | - Fulya Cakalağaoğlu
- Department of Pathology, Katip Çelebi University, Atatürk Eğitim ve Araştırma Hastanesi, Izmir, Turkey
| | - Arzu Avcı
- Department of Pathology, Katip Çelebi University, Atatürk Eğitim ve Araştırma Hastanesi, Izmir, Turkey
| | - Gemma Louise Zeybel
- Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Serçin Karahüseyinoğlu
- School of Medicine, Koç University Hospital, Koç University, 4th floor- M-4220. Davutpaşa Caddesi no: 4, 34010 Istanbul, Turkey
| | - Matthew Bashton
- Bioinformatics Support Unit, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - John C Mathers
- Human Nutrition Research Centre, Newcastle University, Newcastle upon Tyne, UK
| | - Belkıs Ünsal
- Department of Gastroenterology and Hepatology, Katip Çelebi University, Atatürk Eğitim ve Araştırma Hastanesi, Izmir, Turkey
| | - Jelena Mann
- Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
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Argun Baris S, Vural C, Yaprak B, Onyilmaz T, Tuncel D, Vatansever S, Isken T, Basyigit I, Boyaci H, Yildiz F. The effects of sildenafil on smoke induced lung inflammation in rats. Malays J Pathol 2016; 38:39-44. [PMID: 27126663] [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: 06/05/2023]
Abstract
OBJECTIVE Sildenafil is a selective and potent inhibitor of cyclic guanosine monophosphate specific phosphodiesterase-5 and has anti-inflammatory effects. The aim of the study was to evaluate the effects of sildenafil on smoke-induced lung inflammation. MATERIAL AND METHODS Twenty-nine Wistar-Albino rats were enrolled into 3 groups as control, smoker and sildenafil groups. Smoker and sildenafil groups were exposed to cigarette smoke for 2 hours per day for 8 weeks. Sildenafil 10 mg/kg/day was administered to the sildenafil group by nasogastric lavage after smoke exposure. The degree of lung inflammation was scored histopathologically for each group. RESULTS The inflammation score was 7.25±0.93 in the control group, 8.18±1.21 in the smoker group and 7.08±1.66 in the sildenafil group. There was a non-significant decrease of inflammation score in sildenafil group with respect to control or smoker groups. While there was no significant difference of oedema, hyperemia, hemorrhage and mononuclear cell infiltration scores among the groups, it was found that the thickness of interalveolar septum and alveolar distortion was decreased in sildenafil group. However this decrease was not statistically significant. CONCLUSION This study suggests that sildenafil might reduce smoke-induced inflammation in rat lungs. Future studies are needed in order to investigate the clinical effectiveness of this finding in smoking related lung diseases.
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Affiliation(s)
- S Argun Baris
- Kocaeli University School of Medicine, Department of Pulmonary Diseases, Umuttepe, Kocaeli, Turkey.
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Demirel G, Yilmaz A, Vatansever B, Karavar H, Gundogdu S, Vatansever S, Turanli G, Tastekin A. A VERY RARE CAUSE OF APNEA IN THE NEONATAL PERIOD: JOUBERT SYNDROME. Genet Couns 2016; 27:425-428. [PMID: 30204974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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Ipek S, Cekic C, Alper E, Coban E, Eliacik E, Arabul M, Aslan F, Vatansever S, Yalcin H, Unsal B. Can red cell distribution width be a marker of disease activity in ulcerative colitis? Int J Clin Exp Med 2015; 8:13848-13853. [PMID: 26550336 PMCID: PMC4613021] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 07/21/2015] [Indexed: 06/05/2023]
Abstract
AIM The current study aimed to investigate the association between disease activity and red cell distribution width (RDW) levels in ulcerative colitis and to determine whether RDW can be used as a marker of disease activity in non-anemic ulcerative colitis. METHODS The RDW levels of 310 ulcerative colitis patients who underwent colonoscopy were analyzed retrospectively. The patients were divided into two groups (active disease and remission) according to the endoscopic activity index. In addition, the accuracy of RDW in determining disease activity in non-anemic patients was assessed. The efficacy of RDW in determining disease activity was compared to that of white blood cell count, platelet count, C-reactive protein, and erythrocyte sedimentation rate. RESULTS Two hundred and six (66.5%) patients had active disease, and 104 (33.5%) were in remission. The mean RDW levels in patients with active ulcerative colitis and in those in remission were 16.8±2.9 and 15.5±1.4, respectively (P<0.001). Ninety-six (46.6%) patients in the active disease group and 89 (85.6%) in the remission group were non-anemic, and their respective RDW levels were 15.4±1.2 and 15.3±1.1 (P=0.267). The sensitivity and specificity of RDW in determining inflammation were 41% and 91%, respectively (AUC 0.65, P<0.001). CONCLUSIONS This study demonstrated that RDW can be used as a marker for disease activity in ulcerative colitis, but it did not have the same efficacy in the non-anemic group.
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Affiliation(s)
- Serkan Ipek
- Department of Gastroenterology, Izmir Katip Celebi University, Atatürk Training and Research HospitalIzmir, Turkey
| | - Cem Cekic
- Department of Gastroenterology, Izmir Katip Celebi University, Atatürk Training and Research HospitalIzmir, Turkey
| | - Emrah Alper
- Department of Gastroenterology, Izmir Katip Celebi University, Atatürk Training and Research HospitalIzmir, Turkey
| | - Eyup Coban
- Department of Gastroenterology, Izmir Katip Celebi University, Atatürk Training and Research HospitalIzmir, Turkey
| | - Eylem Eliacik
- Department of Hematology, Hacettepe UniversityAnkara, Turkey
| | - Mahmut Arabul
- Department of Gastroenterology, Izmir Katip Celebi University, Atatürk Training and Research HospitalIzmir, Turkey
| | - Fatih Aslan
- Department of Gastroenterology, Izmir Katip Celebi University, Atatürk Training and Research HospitalIzmir, Turkey
| | - Sezgin Vatansever
- Department of Gastroenterology, Izmir Katip Celebi University, Atatürk Training and Research HospitalIzmir, Turkey
| | - Hulya Yalcin
- Department of Biochemistry, Tepecik Training and Research HospitalIzmir, Turkey
| | - Belkis Unsal
- Department of Gastroenterology, Izmir Katip Celebi University, Atatürk Training and Research HospitalIzmir, Turkey
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Ozbilgin K, Kahraman B, Turan A, Atay C, Vatansever S, İnan Sİ, Özçakır TÖ. The expression of Forkhead transcription factors in decidua and placenta in patients with missed abortion. CLIN EXP OBSTET GYN 2015. [DOI: 10.12891/ceog1911.2015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Cekic C, Aslan F, Kirci A, Gümüs ZZ, Arabul M, Yüksel ES, Vatansever S, Yurtsever SG, Alper E, Ünsal B. Evaluation of factors associated with response to hepatitis B vaccination in patients with inflammatory bowel disease. Medicine (Baltimore) 2015; 94:e940. [PMID: 26039133 PMCID: PMC4616368 DOI: 10.1097/md.0000000000000940] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
It is recommended to investigate the serology of hepatitis B virus (HBV) and vaccinate seronegative patients at the time of diagnosis in inflammatory bowel diseases (IBD). This study aimed to investigate the efficacy of HBV vaccine and factors affecting the response.In this retrospective, observational study, HBV-seronegative IBD patients were administered 3 doses (at months 0, 1, and 6) recombinant 20 μg HbsAg. Patients' demographics, IBD attributes, and treatment methods were investigated as the factors with potential impacts on vaccination outcomes.One hundred twenty-five patients with IBD were evaluated. The number of patients with Anti-HBs >10 IU/L was 71 (56.8%), and the number of patients with anti-HBs >100 IU/L was 50 (40%). Age, disease activity, Crohn disease subtype, and immunosuppressive treatment (IST) were found to have significant effects on immune response (P = 0.011, P < 0.001, P = 0.003, and P < 0.001, respectively). With multivariate analysis, age < 45 years (OR 3.1, 95% CI 1.2-8.3, P = 0.020), vaccination during remission (OR 5.6, 95% CI 2.3-14, P < 0.001), and non-IST (OR 11.1, 95% CI 2.9-43.2, P = 0.001) had favorable effects on the occurrence of adequate vaccine response.The likelihood of achieving adequate immune response with standard HBV vaccination protocol in IBD is low. Selecting vaccination protocols with more potent immunogenicity is a better approach to achieve effective vaccine response in patients with multiple unfavorable factors.
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Affiliation(s)
- Cem Cekic
- From the Department of Gastroenterology, Katip Celebi University, Atatürk Training and Research Hospital (CC, FA, MA, ESY, SV, SG, EA, BÜ); Department of Gastroenterology, Şifa University, Faculty of Medicine (AK); Department of Internal Medicine (ZZG); and Department of Medical Microbiology, Katip Celebi University, Atatürk Training and Research Hospital, İzmir, Turkey (SGY)
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Vatansever S, Tekin F, Salman E, Altintoprak E, Coskunol H, Akarca US. Genetic polymorphisms of ADH1B, ADH1C and ALDH2 in Turkish alcoholics: lack of association with alcoholism and alcoholic cirrhosis. Bosn J Basic Med Sci 2015; 15:37-41. [PMID: 26042511 DOI: 10.17305/bjbms.2015.242] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 12/18/2014] [Accepted: 12/18/2014] [Indexed: 12/20/2022] Open
Abstract
No data exists regarding the alcohol dehydrogenase (ADH) and aldehyde dehydrogenase (ALDH) gene polymorphisms in Turkish alcoholic cirrhotics. We studied the polymorphisms of ADH1B, ADH1C and ALDH2 genes in alcoholic cirrhotics and compared the results with non-cirrhotic alcoholics and healthy volunteers. Overall, 237 subjects were included for the study: 156 alcoholic patients (78 cirrhotics, 78 non-cirrhotic alcoholics) and 81 healthy volunteers. Three different single-nucleotide-polymorphism genotyping methods were used. ADH1C genotyping was performed using a polymerase chain reaction-restriction fragment length polymorphism method. The identified ADH1C genotypes were named according to the presence or absence of the enzyme restriction sites. ADH1B (Arg47Hys) genotyping was performed using the allele specific primer extension method, and ALDH2 (Glu487Lys) genotyping was performed by a multiplex polymerase chain reaction using two allele-specific primer pairs. For ADH1B, the frequency of allele *1 in the cirrhotics, non-cirrhotic alcoholics and healthy volunteers was 97.4%, 94.9% and 99.4%, respectively. For ADH1C, the frequency of allele *1 in the cirrhotics, non-cirrhotic alcoholics and healthy volunteers was 47%, 36.3% and 45%, respectively. There was no statistical difference between the groups for ADH1B and ADH1C (p>0.05). All alcoholic and non-alcoholic subjects (100%) had the allele *1 for ALDH2. The obtained results for ADH1B, ADH1C, and ALDH gene polymorphisms in the present study are similar to the results of Caucasian studies. ADH1B and ADH1C genetic variations are not related to the development of alcoholism or susceptibility to alcoholic cirrhosis. ALDH2 gene has no genetic variation in the Turkish population.
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Vatansever S, Akpinar Z, Alper E, Ipek S, Yazicioglu N, Ekinci N, Unsal B. Gastric polyps and polypoid lesions: Retrospective analysis of 36650 endoscopic procedures in 29940 patients. Turk J Gastroenterol 2015; 26:117-22. [DOI: 10.5152/tjg.2015.7720] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Özçakır TÖ, Turan M, Şimşek FŞ, Atay C, Vatansever S, Özbilgin KÖ. A comparison of the molecular distribution of proangiogenic factors in endometrium of missed abortions and of voluntary first trimester termination cases. CLIN EXP OBSTET GYN 2015. [DOI: 10.12891/ceog1774.2015] [Citation(s) in RCA: 3] [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] [Indexed: 11/01/2022]
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Ozbilgin K, Kahraman B, Turan A, Atay C, Vatansever S, Inan S, Ozçakir T. The expression of Forkhead transcription factors in decidua and placenta in patients with missed abortion. CLIN EXP OBSTET GYN 2015; 42:510-514. [PMID: 26411222] [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: 06/05/2023]
Abstract
BACKGROUND Forkhead transcription factors 3a (FOXO3a) has pleiotropic biological functions in the female reproductive tract. FOXO3a has a function in decidualization, in placental development, and also in inhibition of apoptosis. This study aims to investigate a possible role of FOXO3a in missed abortion. MATERIALS AND METHODS Decidual and placental tissue samples were obtained from the women with unwanted pregnancy as the control group and with missed abortion as the patient group. Immunohistochemistry technique was utilized to compare FOXO3a expression of the decidual cells in uterine decidual stroma and cytotrophoblast-syncytiotrophoblast cells in placental villous stroma. Immunohistochemistry was evaluated semiquantitatively utilizing the H-score technique. Results: It was demonstrated that H-Scores of FOXO3a expression in both uterine decidual stroma were increased in the missed abortion group (255.83 +/- 12.41) than in the normal pregnancy group (133.33 +/- 17.43). It was also shown that there was no difference between non-decidual area of the endometrium of the normal pregnancy and the missed abortion group (30.33 +/- 4.32; 39.66 +/- 14.30, respectively) and placental villous stroma (13.00 +/- 1.89; 13.00 +/- 1.67, respectively). However, the immunoreactivity of cytotrophoblast and syncytiotrophoblast cells significantly increased in the missed abortion group (18.83+1.47; 322.00 +/- 6.06, respectively) than in the normal pregnancy group (11.00 +/- 1.26; 254.00 +/- 8.17, respectively) (p < 0.05). CONCLUSION These data support the hypothesis that increased FOXO3a expression in missed abortion may prevent the discharge of dead fetus to maintain decidualization, prevention of oxidative stress, immunomodulation, and inhibition of apoptosis.
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Ozçakir T, Thran MA, Simşek F, Atay C, Vatansever S, Ozbilgin K. A comparison of the molecular distribution of proangiogenic factors in endometrium of missed abortions and of voluntary first trimester termination cases. CLIN EXP OBSTET GYN 2015; 42:40-48. [PMID: 25864280] [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: 06/04/2023]
Abstract
OBJECTIVE The authors aimed to evaluate the angiogenic changes that occur in the cases with missed abortions compared with the voluntary termination of pregnancy as control group, with this controlled clinical study. MATERIALS AND METHODS The study included fifteen healthy volunteer women with unwanted pregnancy less than 10th gestational week in an academic research environment. The patients were 19 women between 6th and 11th gestational weeks diagnosed with missed abortion as the patient group. Immunohistochemistry was utilized to examine temporal and spatial expression of vascular endothelial growth factor (VEGF) and their two receptors: VEGF-R1 (Flt-1) and VEGF-R2 (Flk-1/KDR), and Trombospondin-1, eNOS, iNOS, and HIF-1α in the both deciduas and placenta of the both groups. RESULTS This study discovered the significant difference (p < 0.005) between the groups of controlled and missed abortion in the decidual and placental cell components, and has put forward that thrombospondin and iNOS have an impact on abortion through antiangiogenic effect in cases of missed abortions. CONCLUSIONS The potential role of molecules affecting angiogenesis in the etiology of missed abortion has been evaluated and the authors aimed for this to be a guide for studies on further treatments and on the prevention of the development of missed abortions.
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Çekiç C, Aslan F, Vatansever S, Topal F, Yüksel ES, Alper E, Dallı A, Ünsal B. Latent tuberculosis screening tests and active tuberculosis infection rates in Turkish inflammatory bowel disease patients under anti-tumor necrosis factor therapy. Ann Gastroenterol 2015; 28:241-246. [PMID: 25831138 PMCID: PMC4367214] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Accepted: 09/21/2014] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Tumor necrosis factor (TNF)-α inhibitors increase the risk of tuberculosis (TB). The objective of the present study was to determine the rate of active TB infection in inflammatory bowel disease (IBD) patients receiving anti-TNF therapy and to determine the results of their latent TB infection (LTBI) screening tests during the follow up. METHODS This is a retrospective observational study of IBD patients receiving anti-TNF therapy. Tuberculin skin test (TST), interferon-γ release assay (IGRA), and chest radiography were used to determine LTBI. Active TB infection rate during anti-TNF treatment was determined. RESULTS Seventy-six IBD patients (25 with ulcerative colitis, 51 with Crohn's disease; 53 male; mean age 42.0±12.4 years) were included. Forty-four (57.9%) patients received infliximab and 32 (42.1%) adalimumab. Their median duration of anti-TNF therapy was 15 months. Forty-five (59.2%) patients had LTBI and received isoniazid (INH) prophylaxis. During the follow-up period, active TB was identified in 3 (4.7%) patients who were not receiving INH prophylaxis. There was a moderate concordance between the TST and the IGRA (kappa coefficient 0.44, 95% CI 0.24-0.76). Patients with or without immunosuppressive therapy did not differ significantly with respect to TST (P=0.318) and IGRA (P=0.157). CONCLUSION IBD patients receiving anti-TNF therapy and prophylactic INH have a decreased risk of developing active TB infection. However, despite LTBI screening, the risk of developing active TB infection persists.
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Affiliation(s)
- Cem Çekiç
- Department of Gastroenterology (Cem Çekiç, Fatih Aslan, Sezgin Vatansever, Firdevs Topal, Elif Sarıtaş Yüksel, Emrah Alper, Belkıs Ünsal), Katip Çelebi University, Atatürk Training and Research Hospital, İzmir, Turkey,
Correspondence to: Cem Çekiç, Katip Çelebi Üniversitesi, Atatürk Eğitim ve Araştırma Hastanesi, Gastroenteroloji Kliniği, 35360, Basınsitesi, İzmir, Turkey, Tel.: +90 505 832 36 52, Fax: +90 232 243 15 30, e-mail:
| | - Fatih Aslan
- Department of Gastroenterology (Cem Çekiç, Fatih Aslan, Sezgin Vatansever, Firdevs Topal, Elif Sarıtaş Yüksel, Emrah Alper, Belkıs Ünsal), Katip Çelebi University, Atatürk Training and Research Hospital, İzmir, Turkey
| | - Sezgin Vatansever
- Department of Gastroenterology (Cem Çekiç, Fatih Aslan, Sezgin Vatansever, Firdevs Topal, Elif Sarıtaş Yüksel, Emrah Alper, Belkıs Ünsal), Katip Çelebi University, Atatürk Training and Research Hospital, İzmir, Turkey
| | - Firdevs Topal
- Department of Gastroenterology (Cem Çekiç, Fatih Aslan, Sezgin Vatansever, Firdevs Topal, Elif Sarıtaş Yüksel, Emrah Alper, Belkıs Ünsal), Katip Çelebi University, Atatürk Training and Research Hospital, İzmir, Turkey
| | - Elif Sarıtaş Yüksel
- Department of Gastroenterology (Cem Çekiç, Fatih Aslan, Sezgin Vatansever, Firdevs Topal, Elif Sarıtaş Yüksel, Emrah Alper, Belkıs Ünsal), Katip Çelebi University, Atatürk Training and Research Hospital, İzmir, Turkey
| | - Emrah Alper
- Department of Gastroenterology (Cem Çekiç, Fatih Aslan, Sezgin Vatansever, Firdevs Topal, Elif Sarıtaş Yüksel, Emrah Alper, Belkıs Ünsal), Katip Çelebi University, Atatürk Training and Research Hospital, İzmir, Turkey
| | - Ayşe Dallı
- Department of Chest Disease (Ayşe Dallı), Katip Çelebi University, Atatürk Training and Research Hospital, İzmir, Turkey
| | - Belkıs Ünsal
- Department of Gastroenterology (Cem Çekiç, Fatih Aslan, Sezgin Vatansever, Firdevs Topal, Elif Sarıtaş Yüksel, Emrah Alper, Belkıs Ünsal), Katip Çelebi University, Atatürk Training and Research Hospital, İzmir, Turkey
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Aslan F, Akpinar Z, Seren AR, Alper E, Cekic C, Ekinci N, Vatansever S, Unsal B. Are endoscopic mucosal resection and endoscopic submucosal dissection risky for patients with cirrhosis? Endoscopy 2014; 46 Suppl 1 UCTN:E149-50. [PMID: 24756268 DOI: 10.1055/s-0034-1364946] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- Fatih Aslan
- Department of Gastroenterology, Katip Celebi University Ataturk Training and Research Hospital, Izmir, Turkey
| | - Zehra Akpinar
- Department of Gastroenterology, Katip Celebi University Ataturk Training and Research Hospital, Izmir, Turkey
| | - Ali Riza Seren
- Department of Anesthesiology and Reanimation, Katip Celebi University Ataturk Training and Research Hospital, Izmir, Turkey
| | - Emrah Alper
- Department of Gastroenterology, Katip Celebi University Ataturk Training and Research Hospital, Izmir, Turkey
| | - Cem Cekic
- Department of Gastroenterology, Katip Celebi University Ataturk Training and Research Hospital, Izmir, Turkey
| | - Nese Ekinci
- Department of Pathology, Katip Celebi University Ataturk Training and Research Hospital, Izmir, Turkey
| | - Sezgin Vatansever
- Department of Gastroenterology, Katip Celebi University Ataturk Training and Research Hospital, Izmir, Turkey
| | - Belkis Unsal
- Department of Gastroenterology, Katip Celebi University Ataturk Training and Research Hospital, Izmir, Turkey
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Tastekin D, Tas F, Karabulut S, Duranyildiz D, Serilmez M, Guveli M, Vatansever S. Clinical significance of serum tenascin-C levels in breast cancer. Tumour Biol 2014; 35:6619-25. [PMID: 24696262 DOI: 10.1007/s13277-014-1875-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Accepted: 03/19/2014] [Indexed: 12/21/2022] Open
Abstract
Tenascin-C (TNC) is a key molecule in tissue remodeling, and high levels are observed in many diseases, including heart failure, thrombosis, atherosclerosis, and cancer. High TNC expression by immunohistochemical analysis has been shown in invasive and metastasizing tissues from a variety of cancers, including colon, lung, brain, and breast. This study was conducted to investigate the serum level of TNC in breast cancer patients and its relationship with tumor progression and known prognostic parameters. Ninety-six breast cancer patients were enrolled into the study. Serum samples were obtained on first admission before adjuvant and metastatic treatments were given and at follow-up. Serum TNC levels were determined by the solid-phase sandwich enzyme-linked immunosorbent assay (ELISA) method. Median age of diagnosis was 48 years old (range, 29-80). Thirty-seven (39 %) patients had metastatic breast cancer. The mean TNC levels were found to be significantly higher in patients with breast cancer (344.1 ± 42.4 pg/mL) compared to those in healthy controls (137.2 ± 26.8 pg/mL) (p = 0.005). Serum TNC level in grade 3 tumors was found to be significantly higher than in grades 1-2 tumors (p = 0.04). No correlation was detected between serum TNC levels and other prognostic parameters analyzed, including presence of metastasis, lymph node involvement, and tumor size. Serum TNC level had no significantly adverse effect on survival in univariate and multivariate analyses (p = 0.65 and p = 0.85, respectively). In conclusion, although serum TNC levels are elevated, it has no predictive or prognostic roles on survival in breast cancer patients.
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Affiliation(s)
- D Tastekin
- Department of Medical Oncology, Oncology Institute, Istanbul University, Capa, 34390, Istanbul, Turkey,
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Karabulut S, Duranyıldız D, Tas F, Gezer U, Akyüz F, Serilmez M, Ozgür E, Yasasever CT, Vatansever S, Aykan NF. Clinical significance of serum circulating insulin-like growth factor-1 (IGF-1) mRNA in hepatocellular carcinoma. Tumour Biol 2014; 35:2729-39. [PMID: 24272080 DOI: 10.1007/s13277-013-1360-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2013] [Accepted: 10/24/2013] [Indexed: 02/07/2023] Open
Abstract
The principal aim of our study was to investigate the usefulness of serum protein and circulating mRNA of insulin-like growth factor-1 (IGF-1) as a diagnostic and prognostic tool in hepatocellular carcinoma (HCC). Fifty-four HCC patients and age- and sex-matched 20 healthy controls were enrolled into this study. Pretreatment serum IGF-1 and IGF-1 mRNA were determined by the solid-phase sandwich ELISA and quantitative RT-PCR method, respectively. The median age at diagnosis was 60 years, range 36-77 years; where majority of group were male (n = 48, 88.8%). All patients had cirrhotic history. Forty-six percent (n = 25) of patients had Child-Pugh score A, 30% (n = 16) had score B or C. All of the patients were treated with local therapies and none of them received sorafenib. The baseline serum IGF-1 mRNA levels were significantly higher in HCC patients than in the control group (p = 0.04), whereas no significant difference was observed for IGF-1 protein levels between the two group (p = 0.18). Patients with history of HBV infection, who were not treated, and who received multiple palliative treatment for HCC had higher serum IGF-1 mRNA levels (p = 0.03, 0.03, and 0.05, respectively). Poor performance status (p < 0.001), viral etiology of cirrhosis (p = 0.03), larger tumor size (p = 0.01), lower serum hemoglobin levels (p = 0.03), and not be treated for HCC (p = 0.001) related to worse survival. However, neither serum IGF-1 nor serum IGF-1 mRNA had significantly adverse effect on survival (p = 0.53 and 0.42, respectively).
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Affiliation(s)
- S Karabulut
- Department of Medical Oncology, Oncology Institute, Istanbul University, Istanbul, Turkey,
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Keskin S, Tas F, Karabulut S, Yildiz I, Kiliç L, Ciftci R, Vatansever S. The role of surgical methods in the treatment of anorectal malignant melanoma (AMM). Acta Chir Belg 2014. [PMID: 24494470 DOI: 10.1080/00015458.2013.11680958] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
PURPOSE Anorectal malignant melanoma (AMM) is a rare tumor with a poor prognosis. The aim of this study was to investigate the clinicopathological characteristics and treatment outcomes in patients with AMM. METHODS The study included 21 patients diagnosed with AMM between 2000 and 2010 that were evaluated with regard to age, sex, disease stage, treatment modality, and survival. Stage I, II, and III were defined as localized primary malignant melanoma, regional lymph node metastasis, and distant metastasis, respectively. RESULTS In all, 12 (57%) patients were female and 9 (43%) were male ; median age was 61 years (range : 30-84 years). Among the 21 patients, 7 (47%) underwent abdominoperineal resection and 8 (53%) were treated using wide local excision. Four (19%) patients were classified as stage I, 10 (48%) as stage II, and 7 (33%) patients as stage III. In total, 10 patients received adjuvant therapy. Median overall and progression-free survival was 12 and 9 months, respectively. The 1-year and 5-year overall survival estimates were 59% and 42%, and progression free survival were 49% and 7%, respectively. Patients aged > 60 years (P = 0.145), female patients (P = 0.076), patients with localized disease (P = 0.045), patients that underwent wide local excision (P = 0.619), and patients that received adjuvant therapy (P = 0.962) had longer survival. CONCLUSIONS The prognosis of AMM remains very poor and disease stage is the only predictor of survival. Abdominoperineal resection does not confer an advantage, in terms of survival, in patients with AMM.
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Affiliation(s)
- S. Keskin
- Department of Medical Oncology, Institute of Oncology, University of Istanbul, Istanbul, Turkey
| | - F. Tas
- Department of Medical Oncology, Institute of Oncology, University of Istanbul, Istanbul, Turkey
| | - S. Karabulut
- Department of Medical Oncology, Institute of Oncology, University of Istanbul, Istanbul, Turkey
| | - I. Yildiz
- Department of Medical Oncology, Institute of Oncology, University of Istanbul, Istanbul, Turkey
| | - L. Kiliç
- Department of Medical Oncology, Institute of Oncology, University of Istanbul, Istanbul, Turkey
| | - R. Ciftci
- Department of Medical Oncology, Institute of Oncology, University of Istanbul, Istanbul, Turkey
| | - S. Vatansever
- Department of Medical Oncology, Institute of Oncology, University of Istanbul, Istanbul, Turkey
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Karabulut S, Akşit E, Tas F, Ciftci R, Aydiner A, Yildiz I, Keskin S, Eralp Y, Yasasever CT, Vatansever S, Disci R, Saip P. Is there any diagnostic value of serum protease-activated receptor-1 (PAR1) levels on determination of epithelial ovarian carcinoma? Tumour Biol 2014; 35:4323-9. [PMID: 24390664 DOI: 10.1007/s13277-013-1567-4] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2013] [Accepted: 12/17/2013] [Indexed: 11/25/2022] Open
Abstract
The role of molecular markers in ovarian cancer is still a matter of debate. Protease-activated receptor-1 (PAR1) might be a good marker in some types of malignant tumors and might provide useful information in diagnosis and prognosis. The objective of this study was to evaluate the serum levels of PAR1 in regard to diagnostic, predictive, and prognostic value in epithelial ovarian cancer (EOC) patients. Forty-four EOC patients were enrolled in this study. Serum PAR1 levels were determined by enzyme-linked immunosorbent assay (ELISA) method. Twenty-five age- and sex-matched healthy controls were included in the analysis. The median age of patients was 58 years old, ranging from 22 to 83 years, where most of them had advanced disease (stage III-IV) (n = 40, 91%). The median serum PAR1 values were significantly elevated in patients compared to healthy controls (1.52 ng/ml vs. 1.13 ng/ml) (p = 0.03), whereas any clinical variables including response to chemotherapy did not associate with serum assay (p > 0.05). Progression-free survival (PFS) and overall survival (OS) of patients who did not respond to chemotherapy nor had platinum resistance in relapsed disease were poorer in the analyses. On the other hand, serum PAR1 levels showed no significant adverse effect on either PFS or OS (p = 0.43 and p = 0.49, respectively). These results proved that baseline serum PAR1 levels of patients with EOC were significantly higher than those of healthy people. However, these assays suggested no predictive or prognostic value in this group of patients.
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Affiliation(s)
- S Karabulut
- Department of Medical Oncology, Institute of Oncology, Istanbul University, Capa, 34390, Istanbul, Turkey,
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Arabul M, Kandemır A, Çelık M, Alper E, Akpinar Z, Aslan F, Vatansever S, Ünsal B. Impact of an information video before colonoscopy on patient satisfaction and anxiety. Turk J Gastroenterol 2013; 23:523-9. [PMID: 23161296 DOI: 10.4318/tjg.2012.0416] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND/AIMS Anxiety is a common problem in patients undergoing invasive medical procedures. Colonoscopy is a demanding procedure and requires a patient's good cooperation for successful results. We aimed to examine the effects of adding an information video to our usual preprocedural information. MATERIALS AND METHODS A total of 227 patients were assessed in this study (120 male, 107 female). The patients were divided into two groups as video (n=124) or verbal (n=103). When the patients in the polyclinic with indications for colonoscopy were selected, a text about the procedure and related complications was given to them. A colonoscopy appointment was scheduled for the patients 3-4 weeks following the procedure. On the appointment day, the patients selected randomly in groups of 10 as either verbal or video sections were taken into the communication room 1-5 hours before the procedure. The patients' anxiety was measured afterwards using the Spielberger State-Trait Anxiety Inventory questionnaire. In addition, patients answered individual questions. After the colonoscopy, the patients were asked if they would undergo colonoscopy again for health reasons and whether the procedure was similar to, better, or worse than they had expected (following the information sessions). RESULTS It was noted in univariate and multiple logistic regression analyses that low State-Trait Anxiety Inventory-State levels (p≤0.001 and p=0.016, respectively) and communication by video (p<0.001, p=0.007, respectively) had a significant impact on communication success. CONCLUSIONS An information video shown to patients preparing for colonoscopy had an impact on the success of the procedure and on anxiety.
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Affiliation(s)
- Mahmut Arabul
- İzmir Atatürk Training and Research Hospital, Department of Gastroenterology, İzmir, Turkey.
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Sahin S, Solak S, Akyol O, Vatansever S, Ozyuvaci E. Transdermal methyl alcohol intoxication cause of pain relief. W INDIAN MED J 2013; 62:84-86. [PMID: 24171334] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A 60-year old female patient was found comatosed at home and taken to the hospital's Emergency Department by her relatives. It was learnt that she wrapped her knees with spirit-impregnated cotton pad for pain for one week. On physical examination, only a colour change of purple violet on her knees was noted. Metabolic acidosis with increased anion gap was detected by arterial blood analysis. The patient underwent haemodialysis. She was discharged from the hospital with no complaints, alert and rational following five days of follow-up treatment, with the diagnosis of methyl alcohol poisoning.
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Affiliation(s)
- S Sahin
- Intensive Care Unit, Istanbul Training and Research Hospital, Istanbul, Turkey
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Alper E, Baydar B, Vatansever S, Buyraç Z, Aslan F, Akpinar Z, Aksöz MK, Akça S, Ünsal B. Does presence of common bile duct stones in patients with acute biliary pancreatitis affect the severity of illness or laboratory findings? Turk J Gastroenterol 2012; 22:517-22. [PMID: 22234760 DOI: 10.4318/tjg.2011.0242] [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] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND/AIMS To determine the effect of stone within the common bile duct, on the severity of acute biliary pancreatitis. MATERIAL AND METHODS This is a prospective and cross sectional study which was conducted at a tertiary care hospital including 103 patients. Serum biochemical values and white blood cell counts at the first 12th and 72nd hours of presentation were evaluated. The patients were grouped according to the presence or absence of common bile duct stones which were diagnosed by endoscopic ultrasonography and endoscopic retrograde cholangiopancreatography. Besides, the patients were classified as mild and severe acute pancreatitis according to the data provided by computed tomography (Balthazar scoring) and clinical assessment and blood samples. RESULTS Among the 103 patients with acute biliary patients, radial endoscopic ultrasonography and endoscopic retrograde cholangiopancreatography revealed stones and/or sludge within the common bile duct or ampulla in 41 (39.8%) patients. There was not any persistent common bile duct stone in 62 (60.2%) patients. Severe pancreatitis developed in 9 (22%) of 41 patients who were determined to have stones by endoscopic ultrasonography and endoscopic retrograde cholangiopancreatography, and in 13 (21%) of 62 patients who were not. There was no difference in the incidence of progressing to severe acute biliary patients between patients with and without common bile duct stones (p=0.45). CONCLUSION Presence of common bile duct stones do not correlate with the severity of acute biliary pancreatitis.
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Affiliation(s)
- Emrah Alper
- Department of Gastroenterology, Atatürk Research and Education Hospital, İzmir
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Gorgulu K, Vatansever S, Gozuacik D. 6129 POSTER Analysis of Surfactant on Primary(COLO-320) and Metastatic(COLO-741) Human Colon Cancer Cells Treated With A-Lactalbumin or Sulindac. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)71774-9] [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: 10/17/2022]
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Alper E, Buyraç Z, Baydar B, Cengiz O, Vatansever S, Aslan F, Akça S, Ünsal B. Evaluation of flow and structure abnormalities of splanchnic system veins in cirrhotic patients without portal hypertension. MINERVA GASTROENTERO 2011; 57:123-127. [PMID: 21587151] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
AIM The aim of this study was to evaluate hemodynamic and anatomic alterations of the splanchnic venous system and the efficiency and safety of color Doppler radial endosonography in the assessment of cirrhotic patients by comparing Child A cirrhotic patients without portal hypertension findings versus a non-cirrhotic group. METHODS The study was carried out between January 2009 and February 2010; the study population was 38 cirrhotic patients without portal hypertension and 140 control patients. RESULTS Hepatopedal flow was monophasic in all the control patients; the flow pattern was chaotic and irregular in 8% of the cirrhotic patients; in the cirrhotic patients the portal vein diameter was increased and the flow velocity reduced; no differences in flow volume were observed between the two groups. Splenic vein diameter and flow velocity were normal. In the majority of the Child A cirrhotic patients without portal hypertension, no changes were seen in portal vein diameter or flow volume; in some patients no significant increase portal vein diameter was observed and showed the flow volumes were unchanged. CONCLUSION Radial Doppler endosonography may be efficient and safe for assessing the splanchnic system.
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Affiliation(s)
- E Alper
- Atatürk Research and Training Hospital, Izmir, Turkey
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Sen FK, Namli S, Vatansever S, Akkaya V, Erk O, Besisik F, Güler K. Autoimmune hepatitis complicated by pyomyositis. Int J Clin Pract 2010; 64:109-11. [PMID: 20089024 DOI: 10.1111/j.1742-1241.2006.00942.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Vatansever S, Gelisgen R, Uzun H, Yurt S, Kosar F. Potential role of matrix metalloproteinase-2,-9 and tissue inhibitors of metalloproteinase-1,-2 in exudative pleural effusions. ACTA ACUST UNITED AC 2009; 32:E293-300. [PMID: 19640333 DOI: 10.25011/cim.v32i4.6621] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2009] [Indexed: 11/03/2022]
Abstract
PURPOSE To investigate diagnostic values of pleural fluid matrix metalloproteinase-2 (MMP-2), MMP-9, tissue inhibitors of metalloproteinase-1 (TIMP-1) and TIMP-2 measurements in tuberculous pleurisy(TP) and malignat pleurisy (MP). METHODS The study included 24 patients with TP, 22 patients with MP and 15 patients with pleural effusion of non-tuberculous and non-malignant origin as controls. MMP-2,-9 and TIMP-1,-2 levels in pleural fluid were measured by ELISA method. RESULTS Pleural fluid MMP-2 and MMP-9 levels were higher (P < 0.001, P < 0.001, respectively) in TP than in MP and controls. MP patients have higher pleural fluid MMP-2 and MMP-9 levels (P < 0.01, P < 0.05, respectively) than controls. Pleural fluid TIMP-2 levels were higher (P < 0.01 and P < 0.001, respectively) in MP than in TP and controls. Pleural fluid MMP-9 levels were negatively correlated with pleural fluid TIMP-2 levels (r: 0.464, P=0.029) in patients with MP. CONCLUSIONS Determination of TIMP-2 in pleural fluid may contribute to differentiate TP from MP. These results suggest that overproduction of MMP-9 and TIMP-2 is associated with accumulation of the pleural effusion in malignancy. Further studies with a greater number of patients are needed to confirm this hypothesis.
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Affiliation(s)
- S Vatansever
- Istanbul University, Istanbul Medical Faculty, Department of Internal Medicine, Istanbul, Turkey
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Sohrabi M, Kalati FA, Vatansever S, Abbasi MM, Roshangar L, Khaki AA, Tuglu IM, Aydemir I, Dustar Y, Javadzadeh BY, Rad JS. Effect of dietary and topical Celecoxib on expression of bcl-2, bax, c-erb-B2 and Ki67 in carcinogen-induced tongue carcinoma in rat. Pak J Biol Sci 2009; 12:750-7. [PMID: 19806804 DOI: 10.3923/pjbs.2009.750.757] [Citation(s) in RCA: 5] [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: 11/15/2022]
Abstract
The aim of the study is to determine the effect of Celecoxib administration, dietary or topical, on expression of Ki-67, c-erb-B2, bcl-2 and bax genes in rat tongue by the immunohistochemistry methods and also tdt-mediated dupt-biotin nick end labeling assay in order to explore their role in malignant transformation and the proliferation rate, apoptosis rate in tongue squamous cell carcinoma. Effects of celecoxib on tongue carcinogenesis were investigated in 40 adult male Sprague Dawley 3-3.5 months rats initiated with 30 ppm 4-nitroquinoline-1-oxide. The immunohistochemical expression of Ki-67, bcl2, bax and c-erb-B2 were also examined for analysis of the effects of Celecoxib on tongue carcinogenesis. Differences among groups were statistically analyzed with one-way analysis of variance (SPSS-13, p < 0.05). At week 8, the incidence of tongue precancer lesions was reduced by Celecoxib and there were significant differences in the average expression of Ki-67 (p = 0.00), c-erb-B2 (p = 0.01), bax (p = 0.02), bcl2 (p = 0.02) and also in TUNEL assay (p = 0.00). The results suggest probably that the level of c-erb-B2, bcl-2 and bax expression could show behavior of squamous cell carcinoma in initiation phase of developing carcinoma.
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Affiliation(s)
- M Sohrabi
- Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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Sakar A, Vatansever S, Sepit L, Ozbilgin K, Yorgancioglu A. Effect of recombinant human activated protein C on apoptosis-related proteins. Eur J Histochem 2007; 51:103-9. [PMID: 17664160] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023] Open
Abstract
The recombinant human activated protein C (rhAPC) has been reported to reduce mortality in patients with severe sepsis. An anti-apoptotic effect of rhAPC in sepsis is known, but the mechanism through which it acts on the apoptotic pathway is still unclear. Therefore, immunopositivity of the apoptosis-related proteins Bcl-2, an anti-apoptotic protein, c-myc, a proliferative protein, p-21 and p-53, two apoptotic proteins, was determined after rhAPC treatment in a mouse sepsis model. Sepsis was induced by Escherichia coli endotoxin injection. Increased neutrophil infiltration and immunoreactivity to p53 and p21 were observed in the group with sepsis and these immunoreactivities were decreased by rhAPC treatment. In the sepstic group; immunopositivity of Bcl-2 and c-myc was mild and moderate, respectively. In conclusion; p21- and p53-mediated apoptosis was increased in the sepsis model, and for the first time it has been shown that rhAPC decreases sepsis-induced apoptosis resulting from increased p21 and p53 proteins.
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Affiliation(s)
- A Sakar
- Department of Pulmonology, Celal Bayar University Medical School, Manisa, Turkey.
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Oktem G, Bilir A, Selvi N, Yurtseven ME, Vatansever S, Ates U, Uysal A, Omay SB. Chemotherapy influences inducible nitric oxide synthase (iNOS) and endothelial nitric oxide synthase (eNOS) activity on 3D breast cancer cell line. Oncol Res 2006; 16:195-203. [PMID: 17120617 DOI: 10.3727/000000006783981107] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Multicellular tumor spheroids (MTS) are three-dimensional structural forms of tumors grown in vitro in the laboratory. In this study, the aim was to determine the regulation of inducible nitric oxide synthase (iNOS) and endothelial nitric oxide synthase (eNOS) expressions on MTS in response to treatment with the commonly used anti-cancer drugs Doxorubicin and Docetaxel. The spheroids were generated using the "liquid overlay" technique. The distribution of both iNOS and eNOS was detected using indirect immunohistochemistry, while the expression of both iNOS and eNOS was measured using Western blots. Additionally, S-phase analysis using 5-bromo-2'-deoxyuridine (BrdU) was done on the MTS after treatment with doxorubicin, docetaxel, and a combination of the two. The Griess method was used to measure nitric oxide (NO) production in the cells. An increase in iNOS immunoreactivity and a decrease in eNOS immunoreactivity were observed after doxorubicin treatment, when compared with the other groups. Furthermore, upregulation of iNOS and downregulation of eNOS were detected in doxorubicin-treated cells using Western blotting. Insignificant iNOS expression was observed in all of the groups, and it was particularly low in the control and drug combination groups. NO production was also found to be significantly high after docetaxel treatment, and cell proliferation decreased after doxorubicin treatment. In conclusion, chemotherapy influences NOS activity differently with the presence of different drugs. The results with iNOS show that doxorubicin is a more effective drug than docetaxel, and a drug combination may play a helpful role in the suppression of tumorigenicity and cancer metastasis. Interestingly, eNOS expression increased after the addition of both docetaxel and the drug combination, and it was found to negatively correlate with the histological grade of the tumor. Therefore, analyzing the expression of both iNOS and eNOS might be very useful for targeting the treatment of breast carcinoma and obtaining better information on prognosis.
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Affiliation(s)
- G Oktem
- Department of Histology and Embryology, Ege University School of Medicine, TR-35100 Izmir, Turkey.
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Ardeniz O, Vatansever S, Musabak U, Aksu K, Sin A, Kokuludağ A. Arthritis as a presenting symptom in a hypogammaglobulinemic patient with thymectomy. Rheumatol Int 2006; 27:263-7. [PMID: 16932959 DOI: 10.1007/s00296-006-0186-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2006] [Accepted: 07/23/2006] [Indexed: 10/24/2022]
Affiliation(s)
- Omür Ardeniz
- Department of Internal Medicine, Division of Allergy and Clinical Immunology, Ege University Medical School, 35 100, Bornova, Izmir, Turkey.
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Inan S, Vatansever S, Celik-Ozenci C, Sanci M, Dicle N, Demir R. Immunolocalizations of VEGF, its receptors flt-1, KDR and TGF-beta's in epithelial ovarian tumors. Histol Histopathol 2006; 21:1055-64. [PMID: 16835828 DOI: 10.14670/hh-21.1055] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Angiogenesis is an essential factor for growth, differentiation, invasion and metastasis of tumors. In this study, we aimed to evaluate the immunolocalizations of vascular endothelial growth factor (VEGF), its receptors flt-1, KDR/flk-1, and transforming growth factor-beta's (TGF-beta) in epithelial ovarian tumors, utilizing indirect immunohistochemistry to understand the role of the angiogenic events in ovarian neoplasia. METHODS Tissue blocks from 40 patients who had ovarian pathology (borderline serous-mucinous tumor and malignant serous-mucinous adenocarcinoma of the ovary) were included in this study. All formalin-fixed, paraffin-embedded tissue sections were stained with hematoxylin-eosin or primary antibodies against VEGF, flt-1, KDR/flk-1, TGF-beta1, TGF-beta2 and TGF-beta3 using the avidin-biotin-peroxidase method. H-SCORE, a semi-quantitative grading system, was used to compare immunohistochemical staining intensities. RESULTS Positive VEGF immunoreactivity was concentrated in the epithelial and stromal parts of all the ovarian samples and the endothelial cells in the stroma were also stained. Increased immunoreactivity of VEGF was observed in malignant ovarian adenocarcinomas compared to the borderline tumors of the ovary. VEGF receptors, flt-1 and KDR/flk-1 immunoreactivities were detected not only in vascular endothelial cells, but also in tumor cells at malignant sites. Immunoreactivities of VEGF and its receptors were coexpressed in tumor cells of the ovarian carcinoma. While immunoreactivities of TGF-beta1 and TGF-beta2 were both overexpressed in malignant ovarian carcinomas, immunoreactivity of TGF-beta3 was still mild. CONCLUSION Our results suggest that overexpression of VEGF, its receptors flt-1, KDR/flk-1 and TGF-beta interaction may play an important role in the ovarian cancer biology, with potential effects on tumor growth and angiogenesis. New therapeutic strategies using VEGF and TGF-beta antagonists could obtain an additional approach to the treatment ovarian carcinoma by inhibiting angiogenesis.
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Affiliation(s)
- S Inan
- Celal Bayar University, Faculty of Medicine, Department of Histology and Embryology, Uncubozkoy, Manisa, Turkey.
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Turkmen A, Altan A, Turgut N, Vatansever S, Gokkaya S. The correlation between the richmond agitation–sedation scale and bispectral index during dexmedetomidine sedation. Eur J Anaesthesiol 2006; 23:300-4. [PMID: 16438752 DOI: 10.1017/s0265021506000081] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/31/2005] [Indexed: 11/05/2022]
Abstract
BACKGROUND AND OBJECTIVES The primary objective of sedation in the critically ill patient is to achieve security and comfort. The routine use of standardized and validated sedation scales and monitors are needed. The Richmond agitation sedation scale has been used but some patients cannot be evaluated with subjective assessment tools such as the Richmond agitation sedation scale because they lack motor responsiveness due to therapeutic paralysis or because they are receiving deep sedation. We aimed to assess the correlation of bispectral index with Richmond agitation sedation scale during dexmedetomidine sedation and evaluate the use of the bispectral index in monitoring the levels of sedation in intensive care patients. METHODS This was a single centre, prospective, clinical study. Eleven mechanically-ventilated critically ill patients, aged 17-82 (50.09 +/- 17.76; mean +/- SD) yr, 3 males and 8 females, APACHE II score 12.63 +/- 3.90, SOFA score 3.27 +/- 1.73 were enrolled in the study. Patients received a dexmedetomidine infusion of 1 microg kg-1 over 10 min followed by a maintenance infusion of 0.5 microg kg-1 h-1 for 8 h. Sedation was assessed using the Richmond agitation sedation scale and bispectral index monitoring. Heart rate, blood pressure, respiratory rate and SPO2 were monitored. Wilcoxon signed rank sum test and Spearman's rank correlation analysis were used for statistical analysis. RESULTS The variation of Richmond agitation sedation scale score was between 0.9 and -1.7 bispectral index varied from 65 to 75. Significant correlations between Richmond agitation sedation scale and bispectral index values were found in this study. (r = 0.900; P = 0.0001) CONCLUSIONS Richmond agitation sedation scale levels significantly correlated with bispectral index values during dexmedetomidine sedation in critically ill patients requiring mechanical ventilation in the intensive care unit.
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Affiliation(s)
- A Turkmen
- Okmeydani Education and Research Hospital, Department of Anaesthesiology and Reanimation, Istanbul, Turkey.
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Koyuncu FM, Ozbilgin K, Kuscu NK, Inan S, Vatansever S, Ceylan E. The effect of oestradiol and neta on immunohistochemical staining of iNOS and eNOS in coronary arteries of ovariectomized rats. Histol Histopathol 2006; 21:367-71. [PMID: 16437382 DOI: 10.14670/hh-21.367] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM The postmenopausal period is associated with increased risk for coronary atherosclerosis, and the effect of hormone replacement therapy in reducing this risk is controversial. Previous studies reported that nitric oxide synthetase (NOS) level might be important for the development of atherosclerosis, but no study has shown the interaction between hormone replacement therapy and endothelial NOS and inducible NOS intensity on coronary arteries yet. Our goal was to find out the immunostaining intensity of endothelial NOS and inducible NOS in ovariectomized rats which received oestradiol and norethisterone treatment. METHODS We performed bilateral ovariectomy in 15, female, 90-day-old Wistar rats with an average weight of 250 grams. After waiting for 4 weeks for the menopausal state, they were divided into 3 groups to receive either placebo, 0.1 mg/day 17-beta-oestradiol (group E2), or 0.1 mg/day 17-beta-oestradiol + 0.1 mg/day norethisterone acetate (group E2-NETA) for 5 weeks. Another group included 5, normal, adult, female intact rats and served as controls. At the end of the treatment, all rats were sacrificed and coronary arteries were stained with inducible NOS and endothelial NOS polyclonal antibodies using streptavidin-biotin technique. RESULTS The immunostaining of inducible NOS was prominent in perivascular connective tissue of the ovariectomized group but not in the control group. The inducible NOS immunostaining immunoreactivity was not detected in either treated groups. Immunostaining intensity of endothelial NOS did not differ in any 4 groups with similar staining. CONCLUSION The present findings indicate that hormone replacement therapy down-regulates iNOS expression in coronary arteries of ovariectomized rats, and reduced iNOS may likely be involved in estrogen's beneficial effects.
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Affiliation(s)
- F M Koyuncu
- Department of Obstetrics and Gynecology, Celal Bayar University, School of Medicine, Manisa, Turkey.
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Oktem G, Vatansever S, Ayla S, Uysal A, Aktas S, Karabulut B, Bilir A. Effect of apoptosis and response of extracellular matrix proteins after chemotherapy application on human breast cancer cell spheroids. Oncol Rep 2006. [DOI: 10.3892/or.15.2.335] [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: 11/06/2022] Open
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Oktem G, Vatansever S, Ayla S, Uysal A, Aktas S, Karabulut B, Bilir A. Effect of apoptosis and response of extracellular matrix proteins after chemotherapy application on human breast cancer cell spheroids. Oncol Rep 2006; 15:335-40. [PMID: 16391851] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023] Open
Abstract
Multicellular tumor spheroid (MTS) represents a three-dimensional structural form of tumors in laboratory conditions, and it has the characteristics of avascular micrometastases or intervascular spaces of big tumors. Recent studies indicate that extracellular matrix (ECM) proteins play a critical role in tumor metastasis, therefore normal and cancer cells require an ECM for survival, proliferation and differentiation. Doxorubicin and Docetaxel are widely used in the therapy of breast cancer, as well as in in vivo and in vitro studies. In this study, we examined the effect of apoptosis and proliferation of cells on the human breast cancer cell line, MCF-7, by using p53, bcl-2 and Ki67 gene expression, and the tendency to metastasis with extracellular matrix proteins, laminin and type IV collagen after chemotherapy in the spheroid model. The apoptotic cell death in situ was detected by TUNEL method. TUNEL-positive cells and positive immunoreactivities of laminin, type IV collagen, p53 and, bcl-2 were detected in the control group. There was no laminin and type IV collagen immunoreactivities in spheroids of drug groups. While TUNEL-positive cells and p53 immunoreactivity were detected in Docetaxel, Doxorubicin and Docetaxel/Doxorubicin groups, p53 immunoreactivity was not observed in the Docetaxel group. There was no bcl-2 immunoreactivity in either drug group. In addition, we did not detect Ki67 immunoreactivity in both control and drug treatment groups. However, the absence of Ki67 protein in MCF-7 breast multicellular tumor spheroids is possibly related to the cells in G0 or S phase. These chemotherapeutic agents may affect the presence of ECM proteins in this in vitro model of micrometastasis of spheroids. These findings suggest that the possible mechanism of cell death in Doxorubicin and Docetaxel/Doxorubicin treatment groups is related to apoptosis through the p53 pathway. However, we considered the possibility that there is another control mechanism for the Docetaxel group.
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Affiliation(s)
- G Oktem
- Department of Histology and Embryology, Ege University School of Medicine, TR-35100 izmir, Turkey.
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Tekin F, Vatansever S, Ozütemiz O, Musoğlu A, Ilter T. Severe exudative ascites as an initial presentation of Crohn's disease. Turk J Gastroenterol 2005; 16:171-3. [PMID: 16245232] [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: 05/05/2023]
Abstract
Ascites in the course of Crohn's diseases is rarely seen and usually is a result of a concomitant malignancy, infection or thrombosis of portal or hepatic veins. In this article, a 55-year-old female patient suffering from severe ascites and finally diagnosed as Crohn's disease is presented. Further investigations revealed no malignancy, peritoneal infection or vein thrombosis. Treatment of Crohn's disease with steroids and 5-aminosalicylic acid also resulted in the disappearance of the ascites.
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Affiliation(s)
- Fatih Tekin
- Department of Gastroenterology, Medical School, Ege University, Izmir, Turkey.
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