prof. dr. turan çalhan

Bilimsel Yayınlar

Prof. Dr. Turan ÇALHAN’ın ulusal ve uluslararası dergilerde bir dizi makalesi yayınlanmış, çok sayıda sunuma katılmış, oturum başkanlığı yapmış, çeşitli ulusal ve uluslararası konferanslara katılmıştır. Ayrıca hem editör hem de bölüm yazarlığı görevleriyle gastroenteroloji alanında birçok kitabın hazırlanmasına katkıda bulunmuştur. Doç. Dr. Turan ÇALHAN bilim camiasına önemli katkılar sağlamaya devam ediyor.

Uluslararası hakemli dergi yayınları:

  1. ### Publications by Prof. Dr. Turan Çalhan1. **Calhan T**, Senateş E, Cebeci E, Zuhur SS, Ozbakır F, Görpe U. “A comparison of antineutrophil cytoplasmic antibody prevalence in patients treated and untreated for hyperthyroidism.” *Endocrine*, 38: 199-205 (2010).2. Ozdil K, Sahin A, Kahraman R, Yuzbasioglu B, Demirdag H, **Calhan T**, Yilmaz MS, Sokmen HM. “Current prevalence of intestinal metaplasia and Helicobacter pylori infection in dyspeptic adult patients from Turkey.” *Hepatogastroenterology*, 57: 1563-6 (2010).3. Sökmen HM, Ozdil K, **Calhan T**, Sahin A, Senateş E, Kahraman R, Niğdelioğlu A, Zemheri E. “Situs inversus totalis and secondary biliary cirrhosis: a case report.” *Comp Hepatol*, 3; 10:5 (2011).4. Ozdil K, Sahin A, **Calhan T**, Kahraman R, Nigdelioglu A, Akyuz U, Sokmen HM. “The frequency of microscopic and focal active colitis in patients with irritable bowel syndrome.” *BMC Gastroenterol*, 11:96 (2011).5. Ozdil K, **Calhan T**, Sahin A, Senateş E, Kahraman R, Yüzbasioglu B, Demirdag H, Demirsoy H, Sökmen MH. “Levofloxacin based sequential and triple therapy compared with standard plus probiotic combination for Helicobacter pylori eradication.” *Hepatogastroenterology*, 58:1148-52 (2011).6. Altunöz ME, Senateş E, Yeşil A, **Calhan T**, Ovünç AO. “Patients with inflammatory bowel disease have a lower response rate to HBV vaccination compared to controls.” *Dig Dis Sci*, 57:1039-44 (2012).7. Ozdil K, Sahin A, Kahraman R, **Calhan T**, Gokcan R, Karabulut MH, Sokmen HM. “An Unusual Cause of Upper Gastrointestinal Bleeding: Duodenal Vascular Ectasia after Splenectomy.” *Euroasian J Hepato-Gastroenterol*, 2:109-112 (2012).

    8. Ozdil K, Kahraman R, Sahin A, **Calhan T**, Gozden EH, Akyuz U, Erer B, Sokmen HM. “Bone density in proton pump inhibitors users: a prospective study.” *Rheumatol Int*, 33:2255-60 (2013).

    9. **Calhan T**, Kahraman R, Sahin A, Senateş E, Doganay HL, Kanat E, Ozdil K, Sokmen HM. “Efficacy of Two Levofloxacin-Containing Second-Line Therapies for Helicobacter pylori: A Pilot Study.” *Helicobacter*, 18:378-83 (2013).

    10. **Calhan T**, Sahin A, Kahraman R, Batu A. “Atypical placement of the pylorus: a rare congenital abnormality.” *Endoscopy*, 2014; 46 Suppl 1.

    11. Sahin A, **Calhan T**, Cengiz M, Kahraman R, Aydin K, Ozdil K, Korachi M, Sokmen HM. “Serum interleukin 17 levels in patients with Crohn’s disease: real life data.” *Dis Markers*, 2014; 690853.

    12. **Calhan T**, Sahin A, Kahraman R, Altunoz ME, Ozbakır F, Ozdil K, Sokmen HM. “Antineutrophil cytoplasmic antibody frequency in chronic hepatitis B patients.” *Dis Markers*, 2014; 982150.

    13. Abdurrahman Sahin, Gamze Geyik, **Turan Calhan**, Resul Kahraman, Aysenur Ihvan, Kamil Ozdil, Haci Mehmet Sokmen. “Amebiasis Masquerading Colonic Lymphoma in an Intestinal Intussusception Patient.” *J Med Cases*, 2014; 5(8):441-444.

    14. **Calhan T**, Sahin A, Kahraman R, Soydaş B, Tosun A, Cebeci E. “A Lethal Complication of Endoscopic Therapy: Duodenal Intramural Hematoma.” *Case Rep Gastrointest Med*, 2015; 201675.

    15. Anadol Kelleci U, **Calhan T**, Sahin A, Kahraman R, Ozdil K, Sokmen HM, Yalcin D. “The Prevalence of Headache in Crohn’s Disease: Single-Center Experience.” *Gastroenterol Res Pract*, 2016: 6474651.

    16. Guntas G, Sahin A, Duran S, Kahraman R, Duran I, Sonmez C, **Calhan T**, Sokmen HM. “Evaluation of Ischemia-Modified Albumin in Patients with Inflammatory Bowel Disease.” *Clin Lab*, 2017 Feb 1; 63(2):341-347.

    17. Sahin A, Cihangiroglu G, Bilgic Y, **Calhan T**, Cengiz M. “Is duodenal biopsy appropriate in areas endemic for Helicobacter pylori?” *North Clin Istanb*, 2017 May 10; 4(1):13-21.

    18. Kahraman R, **Calhan T**, Sahin A, Ozdil K, Caliskan Z, Bireller ES, Cakmakoglu B. “Are adipocytokines inflammatory or metabolic mediators in patients with inflammatory bowel disease?” *Ther Clin Risk Manag*, 2017 Sep 30; 13:1295-1301.

    19. Cebeci E, Cakan C, Gursu M, Uzun S, Karadağ S, Koldaş M, **Calhan T**, Aysen Helvacı S, Ozturk S. “The main determinants of serum resistin level in type 2 diabetic patients are renal function and inflammation, not obesity and insulin resistance.” *Experimental and Clinical Endocrinology & Diabetes*, 2017.

    20. Kahraman R, İplik ES, **Çalhan T**, Şahin A, Çakmakoğlu B. “Assessment of the role of EGF +61A/G and EGFR R497K polymorphism in patients with inflammatory bowel disease: A case-control study.” *Archives of Clinical and Experimental Medicine*, 3 (2), 79-83 (2018).

    21. Kelleci UA, **Calhan T**, Sahin A, Aydin-Ozemir Z, Kahraman R, Ozdil K, Sokmen HM, Yalcin AD. “Electroencephalography Findings in Crohn’s Disease.” *Clin EEG Neurosci*, 2019 Mar; 50(2):129-133.

    22. Kahraman R, Şahin A, Öztürk O, **Çalhan T**, Sayar S, Kanat E, Doğanay L, Özdil K. “Effects of Long-Term Tenofovir and Entecavir Treatment on Bone Mineral Density in Patients with Chronic Hepatitis B.” *Turk J Gastroenterol*, 2022.

    23. **Çalhan T**, Yivli E. “Coronavirus disease 2019 (COVID-19) as a potential trigger for benign recurrent intrahepatic cholestasis.” *Clin Case Rep*, 2022 Mar 10; 10(3): e05557.

    24. Demir N, Yüzbasıoglu B, **Calhan T**, Ozturk S. “Prevalence and Prognostic Importance of High Fibrosis-4 Index in COVID-19 Patients.” *Int J Clin Pract*, 2022 May 4; 2022:1734896.

Uluslararası Bilimsel Konferanslarda Yayınlanan Sunumlar ve Özetler

1. Ozdil K, **Calhan T**, Sahin A, Kahraman R. “Levofloxacin-Based Sequential and Triple Therapy Compared with Standard Plus Probiotic Combination for Helicobacter pylori Eradication.” *United European Gastroenterology Week (UEGW)*, October 22-26, 2011, Stockholm, Sweden, OP-262. (Oral Presentation, National Scholar Award; this abstract has been published as a full article, A 5).

2. Ozdil K, Kahraman R, Sahin A, **Calhan T**, Nigdelioglu A, Gozden HE, Akyuz U, Erer B, Senates E, Sokmen HM. “A Prospective Evaluation of Bone Density in Patients Using Proton Pump Inhibitors for Gastroesophageal Reflux Disease.” *United European Gastroenterology Week (UEGW)*, October 22-26, 2011, Stockholm, Sweden, OP-153. (Oral Presentation; this abstract has been published as a full article, A 9).

3. Altunöz ME, Senates E, Ovunc AO, **Calhan T**, Yesil A. “Patients with Inflammatory Bowel Disease Have a Lower Response Rate to HBV Vaccination Compared to Controls.” *28th National Gastroenterology Week, World Gastroenterology Organization Regional Meeting*, Antalya, 2011. (This abstract has been published as a full article, A 6).

4. **Calhan T**, Kahraman R, Sahin A, Senates E, Doganay HL, Kanat E, Ozdil K, Sokmen HM. “Efficacy of Two Levofloxacin-Containing Second-Line Therapies for Helicobacter pylori: A Pilot Study.” *United European Gastroenterology Week (UEGW)*, October 12-16, 2013, Berlin, Germany, OP-522. (This abstract has been published as a full article, A 10).

5. Kelleci Anadol U, **Calhan T**, Sahin A, Kahraman R, Ozdil K, Sokmen HM, Yalçin D. “The Prevalence of Headache in Crohn’s Disease.” *14th International Euroasian Congress of Gastroenterology and Surgery, 11th National Hepatogastroenterology Congress*, Antalya, 2014. (This abstract has been published as a full article, A 16).

6. Ozdil K, Kahraman R, Kanat E, **Calhan T**, Sahin A, Sokmen HM. “The Effects of Tenofovir and Entecavir Therapy in the Development of Osteoporosis.” *24th Annual Conference of APASL*, Istanbul, 2015.

7. Kahraman R, Bireller S, **Calhan T**, Sahin A, Ozturk O, Caliskan ZS, Doganay L, Ozdil K, Cakmakoglu B. “Investigations of the EGF and its Receptor EGFR Gene Variants in Ulcerative Colitis.” *XV Euroasian Congress of Gastroenterology and Surgery* (Oral Presentation), Antalya, 2016.

Ulusal hakemli dergilerde yayınlanan makaleler.

  1. Ozdil K, Sahin A, Akyuz U, Calhan T, Nigdelioglu A, Yuzbasioglu B, Kahraman R, Demirdag H, Sokmen M; The Importance of Duodenal Biopsy in Adults with Iron Deficiency Anemia; Yeditepe Medical Journal. 5:353-359, (2011).
  2. Mehmet Sokmen, Kamil Ozdil, Abdurrahman Sahin, Resul Kahraman, Bilgehan Yuzbasioglu, Turan Calhan, Hakan Demirdag, Adil Nigdelioglu; Periampullary Diverticula Increases Post-ERCP Pancreatitis but Not Bleeding. Endoscopy, 19(1) (2011).
  3. Kamil Ozdil, Abdurrahman Sahin, Resul Kahraman, Hakan Demirdag, Turan Calhan, Bilgehan Yuzbasioglu, Suat Kilic, Hakan Karabulut, H. Mehmet Sokmen; A Case of Signet Ring Cell Gastric Cancer Showing No Progression Without Treatment for a Period of Three Years. Endoscopy, 19(1). (2011).
  4. Ozdil K, Ozturk O, Caliskan Z, Calik ES, Evren K, Kahraman R, Sayar S, Calhan T, Doganay L; Is There a Relationship Between the Size of Gastroesophageal Varices and Child-Pugh Score? Medeniyet Medical Journal, 31(3):174-178, 2016.