Prof.Dr.Seyfettin KÖKLÜ

Prof.Dr.Seyfettin KÖKLÜ

Gastroenteroloji

  • 1972 yılında Kahramanmaraş'ta doğdu.
  • İlk, orta ve lise eğitimini Kahramanmaraş'ta aldı.
  • 1996 yılında Hacettepe Üniversitesi Tıp Fakültesi İç Hastalıkları Anabilim Dalı’nda uzmanlık eğitimine başlayıp 2001 yılında aynı kurumdan uzmanlığını aldı.
  • 2001-2004 yılları arasında Türkiye Yüksek İhtisas Hastanesi Gastroenteroloji Bölümü’nde yan dal ihtisası yaptı.
  • Kasım 2006 tarihinde Doçentlik ünvanını aldı. 2008-2012 tarihleri arası Ankara Eğitim ve Araştırma Hastanesi Gastroenteroloji Kliniği’nde şef yardımcısı olarak çalıştı.
  • 2012 yılında Hacettepe Üniversitesi Tıp Fakültesi’ne öğretim üyesi olarak atandı.
  • 2013 yılında aynı kurumda Profesör akademik ünvanını aldı.
  • 2016 yılına kadar da Hacettepe Üniversitesi Tıp Fakültesi’nde öğretim üyesi olarak görev yaptı.
  • 2012-2015 yılları arasında Türkiye Bilimler Akademisi asosiye üyeliği yaptı. 2013 yılında Amerika Birleşik Devletleri’nde Johns Hopkins Üniversitesi Hastanesi’nde çalıştı.
  • Halen 300 adet uluslararası yayını ve 1450’nin üzerinde bilimsel yayın atıfı vardır.
  • Uluslar arası dergilerde editör yardımcılığı yaptı.
  • Uluslar arası prestijli pek çok dergide hakemlik yapmaktadır.
  • Almış olduğu bir çok bilimsel ödül bulunmaktadır.

1: Köklü S, Köklü H. Rectal Candidiasis Mimicking Ulcerative Colitis in an
Immunocompetent Patient. Inflamm Bowel Dis. 2019 Oct 18;25(11):e142. doi:
10.1093/ibd/izz201. PubMed PMID: 31504543.


2: Köklü S, Köklü H, Çiçek N. A Patient With Right Infrascapular Swelling. Clin
Gastroenterol Hepatol. 2019 Aug 8. pii: S1542-3565(19)30850-X. doi:
10.1016/j.cgh.2019.07.061. [Epub ahead of print] PubMed PMID: 31401363.


3: Ozturk O, Koklu H, Aksoy EK, Koklu S. A RARE CAUSE OF GASTROINTESTINAL
BLEEDING IN AN ELDERLY PATIENT WITH MULTIPLE-ORGAN DYSFUNCTION SYNDROME.
Gastroenterol Nurs. 2018 Sep/Oct;41(5):446-448. doi:
10.1097/SGA.0000000000000403. PubMed PMID: 30272607.


4: Koklu H, Ozturk O, Kahramanoglu Aksoy E, Sokmensuer C, Koklu S. A CASE WITH
SEVERE ACUTE COLITIS FOLLOWING COLONOSCOPY. Gastroenterol Nurs. 2017
Sep/Oct;40(5):421-423. doi: 10.1097/SGA.0000000000000298. PubMed PMID: 28957973.


5: Yılmaz B, Aksoy E, Köklü S, Özmen M. ILEUS DUE TO EXTENSIVE AIR INSUFFLATION
WITH ENDOSCOPIC RETROGRADE CHOLANGIO-PANCREATOGRAPHY. Gastroenterol Nurs. 2017
Jul/Aug;40(4):321-323. doi: 10.1097/SGA.0000000000000160. PubMed PMID: 28746118.


6: Özdeniz İ, İdilman İS, Köklü S, Hamaloğlu E, Özmen M, Akata D, Karçaaltıncaba
M. Dual-energy CT characteristics of colon and rectal cancer allows
differentiation from stool by dual-source CT. Diagn Interv Radiol. 2017
Jul-Aug;23(4):251-256. doi: 10.5152/dir.2017.16225. PubMed PMID: 28440784; PubMed
Central PMCID: PMC5508947.


7: Akbal E, Koçak E, Köklü S, Ergül B, Akyürek Ö, Yılmaz FM. Serum Toll-Like
Receptor-2, Toll-Like Receptor-4 Levels in Patients with HBeAg-Negative Chronic
Viral Hepatitis B. Viral Immunol. 2017 May;30(4):278-282. doi:
10.1089/vim.2016.0131. Epub 2017 Apr 17. PubMed PMID: 28414577; PubMed Central
PMCID: PMC5421507.


8: Koçak E, Akbal E, Beyazit Y, Ergül B, Karataş A, Köklü S, Ekşioğlu HM. Celiac
disease prevalence in a large series of patients with Behçet's disease. Int J
Rheum Dis. 2018 Dec;21(12):2146-2150. doi: 10.1111/1756-185X.12990. Epub 2017 Apr
11. PubMed PMID: 28397343.


9: Ozturk O, Koklu S, Koklu H. RECURRENT GASTRIC POLYPOSIS IN A PATIENT USING
ANTIEPILEPTIC DRUGS FOR A LONG TIME. Gastroenterol Nurs. 2017
Mar/Apr;40(2):152-153. doi: 10.1097/SGA.0000000000000281. PubMed PMID: 28362663.


10: Köklü H, Kahramanoğlu Aksoy E, Öztürk Ö, Göçmen R, Köklü S. An unusual
neurological complication in a patient with ulcerative colitis. Turk J
Gastroenterol. 2017 Mar;28(2):137-139. doi: 10.5152/tjg.2017.16645. Epub 2017 Jan
30. PubMed PMID: 28134129.


11: Köklü S, Köksal I, Akarca US, Balkan A, Güner R, Demirezen A, Sahin M, Akhan
S, Ozaras R, Idilman R.  Daclatasvir plus asunaprevir dual therapy for chronic
HCV genotype 1b infection: results of Turkish early access program. Ann Hepatol.
2017 Jan-Feb 2017;16(1):71-76. doi: 10.5604/16652681.1226817. PubMed PMID:
28051795.


12: Köklü S, Köksal I, Salih Akarca U, Balkan A, Güner R, Demirezen A, Sahin M,
Akhan S, Ozaras R, Idilman R. Daclatasvir Plus Asunaprevir Dual Therapy for
Chronic HCV Genotype 1b Infection: Results of Turkish Early Access Program. Ann
Hepatol. 2017 Jan - Feb;16(1):71-76. doi: 10.5604/16652681.1226817. PubMed PMID:
31155107.


13: Köklü H, Aksoy EK, Öztürk Ö, Bayraktar Y, Köklü S. A rare cause of severe
gastrointestinal bleeding in a thrombocytopenic patient with acute myeloid
leukemia. Turk J Gastroenterol. 2017 Jan;28(1):63-64. doi: 10.5152/tjg.2016.0419.
Epub 2016 Dec 19. PubMed PMID: 27991857.


14: Ozturk O, Koklu S, Sokmensuer C, Uner H. A GIANT BENIGN POLYP OF THE STOMACH.
Gastroenterol Nurs. 2016 Nov/Dec;39(6):478-480. Review. PubMed PMID: 27922519.


15: Tseveldorj N, Koklu S, Katipoglu K. An Unusual Cause of Gastric Linitis
Plastica. Gastroenterology. 2016 Dec;151(6):e10-e11. doi:
10.1053/j.gastro.2016.07.019. Epub 2016 Nov 1. PubMed PMID: 27810370.


16: Aksoy EK, Koklu S, Ozturk O, Koklu H, Karcaaltincaba M, Sezgin O. Hereditary
angioedema: A rare cause of pancreatitis. Clin Res Hepatol Gastroenterol. 2016
Sep;40(4):e48-9. doi: 10.1016/j.clinre.2016.02.002. Epub 2016 Aug 27. PubMed
PMID: 27576199.


17: Sperl J, Horvath G, Halota W, Ruiz-Tapiador JA, Streinu-Cercel A, Jancoriene
L, Werling K, Kileng H, Koklu S, Gerstoft J, Urbanek P, Flisiak R, Leiva R,
Kazenaite E, Prinzing R, Patel S, Qiu J, Asante-Appiah E, Wahl J, Nguyen BY, Barr
E, Platt HL. Efficacy and safety of elbasvir/grazoprevir and sofosbuvir/pegylated
interferon/ribavirin: A phase III randomized controlled trial. J Hepatol. 2016
Dec;65(6):1112-1119. doi: 10.1016/j.jhep.2016.07.050. Epub 2016 Aug 16. PubMed
PMID: 27542322.


18: Ozturk O, Koklu S, Basar O, Purnak T, Yuksel O. AN UNUSUAL CAUSE OF ANEMIA IN
AN ELDER: ISOLATED SPLENIC HEMANGIOMATOSIS AND HEMORRHAGIC TELANGIECTASIA.
Gastroenterol Nurs. 2016 Jul-Aug;39(4):317-8. doi: 10.1097/SGA.0000000000000244.
PubMed PMID: 27467061.


19: Koklu H, Koklu S, Ozturk O, Kahramanoglu Aksoy E, Karcaaltıncaba M,
Sokmensuer C. Cirrhosis Related to Hepatic Sarcoidosis in Older Adults. J Am
Geriatr Soc. 2016 Aug;64(8):1747-8. doi: 10.1111/jgs.14277. Epub 2016 Jul 23.
PubMed PMID: 27448951.


20: Ozturk O, Koklu S, Basar O, Purnak T, Yuksel O. CROHN DISEASE PRESENTED WITH
A GIANT COLONIC MASS. Gastroenterol Nurs. 2016 May-Jun;39(3):235-7. doi:
10.1097/SGA.0000000000000249. PubMed PMID: 27258465.


21: Koklu H, Koklu S, Ozturk O. Right- versus Conventional Left-Sided Starting
Position for Colonoscopy: The Issues to Be Considered. Am J Gastroenterol. 2016
Jun;111(6):897. doi: 10.1038/ajg.2016.62. PubMed PMID: 27249984.


22: Koçak E, Akbal E, Köklü S, Ergül B, Can M. The Colonic Tissue Levels of TLR2,
TLR4 and Nitric Oxide in Patients with Irritable Bowel Syndrome. Intern Med.
2016;55(9):1043-8. doi: 10.2169/internalmedicine.55.5716. Epub 2016 May 1. PubMed
PMID: 27150852.


23: Göktaş Z, Köklü S, Dikmen D, Öztürk Ö, Yılmaz B, Asıl M, Korkmaz H, Tuna Y,
Kekilli M, Karamanoğlu Aksoy E, Köklü H, Demir A, Köklü G, Arslan S. Nutritional
habits in functional dyspepsia and its subgroups: a comparative study. Scand J
Gastroenterol. 2016 Aug;51(8):903-7. doi: 10.3109/00365521.2016.1164238. Epub
2016 Apr 28. PubMed PMID: 27124324.


24: Yilmaz B, Koklu S, Buyukbayram H, Yalçin K, Korkmaz U, Posul E, Can G, Kurt
M. Chronic hepatitis B associated with hepatic steatosis, insulin resistance,
necroinflammation and fibrosis. Afr Health Sci. 2015 Sep;15(3):714-8. doi:
10.4314/ahs.v15i3.3. PubMed PMID: 26957957; PubMed Central PMCID: PMC4765474.


25: Koklu H, Koklu S, Cinar H. Helicobacter pylori and metabolic syndrome. Turk J
Gastroenterol. 2016 Mar;27(2):201. doi: 10.5152/tjg.2015.150509. Epub 2016 Feb 5.
PubMed PMID: 26853791.


26: Köklü H, Köklü S, Öztürk Ö. DR-70 immunoassay in gastric cancer. Turk J
Gastroenterol. 2016 Jan;27(1):88. doi: 10.5152/tjg.2015.150494. PubMed PMID:
26728865.


27: Aksoy EK, Koklu S, Karcaaltıncaba M, Sahin TT. Image of the month: A Red Ball
at the Base of the Cecum. Am J Gastroenterol. 2015 Dec;110(12):1652. doi:
10.1038/ajg.2015.102. PubMed PMID: 26673488.


28: Kahramanoglu Aksoy E, Koklu S, Öztürk Ö, Karcaaltincaba M. An Unusual Cause
of Recurrent Acute Pancreatitis. Pancreas. 2016 Jan;45(1):e11-2. doi:
10.1097/MPA.0000000000000422. PubMed PMID: 26658042.


29: Altan E, Köklü S, Özmen M, Büyükeren B, Gedikoğlu G. Adenomyoma of the
duodenum. Am J Gastroenterol. 2015 Aug;110(8):1141. doi: 10.1038/ajg.2014.407.
PubMed PMID: 26263354.


30: Yilmaz B, Roach EC, Koklu S. An Unusual Cause of a High Carbonhydrate Antigen
19-9 Level in an Elderly Individual: Polycystic Liver Disease. J Am Geriatr Soc.
2015 Jul;63(7):1487-8. doi: 10.1111/jgs.13541. PubMed PMID: 26189862.


31: Aksoy EK, Koklu S. Albendazole-induced cirrhosis decompensation and
pancytopenia. Ann Pharmacother. 2015 Aug;49(8):945-6. doi:
10.1177/1060028015590178. Epub 2015 Jun 5. PubMed PMID: 26048870.


32: Koklu S, Gulsen MT, Tuna Y, Koklu H, Yuksel O, Demir M, Guner R, Dogan Z,
Kucukazman M, Poyrazoglu OK, Biyik M, Ozturk NA, Aydogan T, Coban S, Kocaman O,
Sapmaz F, Gokturk SH, Karaca C, Demirezer A, Tanoglu A, Yildirim B, Altinbas A,
Atak BM, Cosar AM, Alkan E; Other collaborators. Differences in nephrotoxicity
risk and renal effects among anti-viral therapies against hepatitis B. Aliment
Pharmacol Ther. 2015 Feb;41(3):310-9. doi: 10.1111/apt.13036. Epub 2014 Dec 4.
PubMed PMID: 25982037.


33: Yilmaz B, Roach EC, Koklu S, Aydin O, Unlu O, Kilic YA. Air leak syndrome
after endoscopic retrograde cholangiopancreatography: a rare and fatal
complication. World J Gastroenterol. 2015 Apr 21;21(15):4770-2. doi:
10.3748/wjg.v21.i15.4770. PubMed PMID: 25914490; PubMed Central PMCID:
PMC4402328.


34: Ozturk O, Koklu S. An unusual foreign body in the ileum. Gastrointest Endosc.
2015 May;81(5):1302-3. doi: 10.1016/j.gie.2014.12.060. PubMed PMID: 25864905.


35: Batgi H, Akbal E, Koçak E, Akyürek Ö, Köklü S, Dönmez M, Güneş F. Treatment
of hemorrhagic gastritis by Ankaferd blood stopper versus Omeprazole:
experimental randomized rat models. Wien Klin Wochenschr. 2016 Dec;128(Suppl
8):559-565. doi: 10.1007/s00508-015-0762-2. Epub 2015 Apr 10. PubMed PMID:
25860852.


36: Yüksel E, Akbal E, Koçak E, Akyürek Ö, Köklü S, Ekiz F, Yılmaz B. The
relationship between visfatin, liver inflammation, and acute phase reactants in
chronic viral hepatitis B. Wien Klin Wochenschr. 2016 Sep;128(17-18):658-62. doi:
10.1007/s00508-015-0723-9. Epub 2015 Apr 9. PubMed PMID: 25854905.


37: Bulus H, Tas A, Koklu S. Gastrointestinal stromal tumor in Turcot syndrome.
Gastroenterol Nurs. 2015 Mar-Apr;38(2):126-7. doi: 10.1097/SGA.0000000000000101.
PubMed PMID: 25831251.


38: Ozturk O, Koklu S, Peynircioglu B, Eldem G. An unusual cause of massive
gastrointestinal bleeding. Dig Liver Dis. 2015 Jul;47(7):e11. doi:
10.1016/j.dld.2015.03.008. Epub 2015 Mar 17. PubMed PMID: 25818252.


39: Ozturk O, Koklu S, Basar O, Haznedaroglu IC. Severe radiation esophagitis
successfully treated with Ankaferd hemostat. Gastrointest Endosc. 2015
Apr;81(4):1048-9. doi: 10.1016/j.gie.2014.10.007. PubMed PMID: 25805479.


40: Koçak E, Akbal E, Köklü S, Adam G. Evaluation of serum L-FABP levels in
patients with acute pancreatitis. Ulus Travma Acil Cerrahi Derg. 2015
Jan;21(1):39-43. doi: 10.5505/tjtes.2015.49879. PubMed PMID: 25779711.


41: Ozturk O, Basar O, Koklu S, Yuksel O, Purnak T, Sokmensuer C. An unusual
presentation of malignant melanoma: amelanotic gastric metastasis. Am J
Gastroenterol. 2015 Mar;110(3):476. doi: 10.1038/ajg.2014.434. PubMed PMID:
25743721.


42: Ozturk O, Koklu S, Veisalov M. An unusual cause of giant gastric ulcer. Acta
Gastroenterol Belg. 2014 Dec;77(4):437. PubMed PMID: 25682636.


43: Yıldız P, Yilmaz B, Yıldız M, Dizen H, Koklu S, Şimşek G. Giant gastric
tubulovillous adenoma: a rare upper gastrointestinal bleeding. Acta Gastroenterol
Belg. 2014 Dec;77(4):435-6. PubMed PMID: 25682635.


44: Buldukoglu OC, Koklu S, Koklu H, Uluoglu O, Kulduk G. Intestinal perforation
as the initial presentation of polyarteritis nodosa in an older adult. Geriatr
Gerontol Int. 2015 Jan;15(1):121-2. doi: 10.1111/ggi.12266. PubMed PMID:
25583391.


45: Ozturk O, Koklu S, Kurtulan O. Multiple masses in the colon of a patient with
ulcerative colitis. Gastroenterology. 2015 Feb;148(2):e7-8. doi:
10.1053/j.gastro.2014.08.007. Epub 2014 Dec 18. PubMed PMID: 25529806.


46: Akbal E, Koçak E, Akyürek Ö, Köklü S, Batgi H, Şenes M. Liver fatty
acid-binding protein as a diagnostic marker for non-alcoholic fatty liver
disease. Wien Klin Wochenschr. 2016 Jan;128(1-2):48-52. doi:
10.1007/s00508-014-0680-8. Epub 2014 Dec 2. PubMed PMID: 25447969.


47: Dökmeci A, Ustündağ Y, Hulagu S, Tuncer I, Akdoğan M, Demirsoy H, Köklü S,
Güzelbulut F, Doğan I, Demir A, Akarsu M, Yüceyar H, Ozdoğan OC, Ozdener F,
Erdoğan S. The association between insulin resistance and hepatic fibrosis in
patients with chronic hepatitis C: an observational, multicenter study in Turkey.
Turk J Gastroenterol. 2014 Oct;25(5):546-52. doi: 10.5152/tjg.2014.7829. PubMed
PMID: 25417617.


48: Öztürk Ö, Köklü S, Yüksel O. Constipation: an unusual presentation of
ulcerative pancolitis in an elderly adult. J Am Geriatr Soc. 2014
Oct;62(10):2013-4. doi: 10.1111/jgs.13046. PubMed PMID: 25333553.


49: Yılmaz B, Köklü S, Yüksel O, Arslan S. Serum beta 2-microglobulin as a
biomarker in inflammatory bowel disease. World J Gastroenterol. 2014 Aug
21;20(31):10916-20. doi: 10.3748/wjg.v20.i31.10916. PubMed PMID: 25152594; PubMed
Central PMCID: PMC4138471.


50: Yilmaz B, Roach EC, Koklu S. Infliximab leading to autoimmune hepatitis: an
increasingly recognized side effect. Dig Dis Sci. 2014 Oct;59(10):2602-3. doi:
10.1007/s10620-014-3323-z. PubMed PMID: 25146841.


51: Coban S, Kekilli M, Köklü S. Approach and management of patients with chronic
hepatitis B and C during the course of inflammatory bowel disease. Inflamm Bowel
Dis. 2014 Nov;20(11):2142-50. doi: 10.1097/MIB.0000000000000126. Review. PubMed
PMID: 25072501.


52: Köklü S. Antiviral therapy is not enough to prevent hepatocellular carcinoma
development in patients with chronic hepatitis B. Turk J Gastroenterol. 2014
Feb;25(1):124. doi: 10.5152/tjg.2014.0005. PubMed PMID: 24918150.


53: Ozkan H, Arslan M, Kabacam G, Tas A, Ozgür G, Kaygusuz G, Ekinci C,
Serdaroğlu A, Köklü S. Chronic hepatitis in a patient with rigid spine myopathy:
cause or just an association? Turk J Gastroenterol. 2014 Feb;25(1):113-5. doi:
10.5152/tjg.2014.3580. PubMed PMID: 24918145.


54: Sarikaya M, Köklü S, Ergül B, Doğan Z. Cholangitis resulting from a
fragmented plastic biliary stent. Am Surg. 2014 Mar;80(3):E88-9. Review. PubMed
PMID: 24666854.


55: Buluş H, Yavuz A, Aydın A, Köklü S, Coşkun A. Pancreatic lymphoma presenting
with acute pancreatitis. Turk J Gastroenterol. 2013;24(6):569-71. PubMed PMID:
24623303.


56: Koklu S, Gulsen MT, Tuna Y, Koklu H, Yuksel O, Yilmaz B, Karaca C, Ataseven
H, Guner R, Kucukazman M, Kockar C, Demir M, Poyrazoglu OK, Ibis M, Purnak T,
Etgul S, Alkan E, Coban S, Gokturk S, Biyik M, Baykal O, Basar O, Koklu N, Tatar
G, Simsek H. Lamivudine treatment failure risks in chronic hepatitis B patients
with low viral load. Digestion. 2013;88(4):266-71. PubMed PMID: 24356645.


57: Buluş H, Koyuncu A, Taş A, Köklü S, Soy D, Coşkun A. Caecal diverticulitis
mimicking acute appendicitis. Turk J Gastroenterol. 2013;24(4):371-2. PubMed
PMID: 24254275.


58: Yilmaz B, Köklü S, Gedikoglu G. Hepatic mass caused by Fasciola hepatica: a
tricky differential diagnosis. Am J Trop Med Hyg. 2013 Dec;89(6):1212-3. doi:
10.4269/ajtmh.13-0085. Epub 2013 Sep 30. PubMed PMID: 24080633; PubMed Central
PMCID: PMC3854903.


59: Koçak E, Akbal E, Taş A, Köklü S, Karaca G, Can M, Kösem B, Üstün H.
Anti-inflammatory efficiency of Ankaferd blood stopper in experimental distal
colitis model. Saudi J Gastroenterol. 2013 May-Jun;19(3):126-30. doi:
10.4103/1319-3767.111955. PubMed PMID: 23680710; PubMed Central PMCID:
PMC3709375.


60: Akbal E, Köklü S, Astarcı HM, Koçak E, Karaca G, Beyazıt Y, Topcu G, Acar B,
Ergün D, Haznedaroğlu İC. Oral high-dose ankaferd administration effects on
gastrointestinal system. Int J Med Sci. 2013;10(4):451-6. doi: 10.7150/ijms.4875.
Epub 2013 Mar 2. PubMed PMID: 23471574; PubMed Central PMCID: PMC3590606.


61: Akbal E, Demirci S, Koçak E, Köklü S, Başar O, Tuna Y. Alterations of
platelet function and coagulation parameters during acute pancreatitis. Blood
Coagul Fibrinolysis. 2013 Apr;24(3):243-6. doi: 10.1097/MBC.0b013e32835aef51.
PubMed PMID: 23425662.


62: Biyikoğlu I, Köklü S, Filik L, Ergül B, Ozcan N, Köseoğlu S. An unusual
complication of nasogastric tube. Acta Gastroenterol Belg. 2012 Dec;75(4):464-5.
PubMed PMID: 23402096.


63: Yılmaz B, Köklü S, Kulaç I. Relapse of multiple myeloma presenting with
melena. Dig Endosc. 2013 Mar;25(2):208-9. doi: 10.1111/den.12009. Epub 2012 Dec
17. PubMed PMID: 23368727.


64: Ergül B, Koçak E, Taş A, Filik L, Köklü S. Bismuth, moxifloxacin,
tetracycline, lansoprazole quadruple first line therapy for eradication of H.
pylori: A prospective study. Clin Res Hepatol Gastroenterol. 2013
Nov;37(5):527-9. doi: 10.1016/j.clinre.2012.10.014. Epub 2013 Jan 9. PubMed PMID:
23312494.


65: Koçak E, Kılıç F, Akbal E, Taş A, Köklü S, Filik L, Bıyıkoğlu I, Ergül B. The
usefulness of ulcer size and location in the differential diagnosis of benign and
malignant gastric ulcer. Wien Klin Wochenschr. 2013 Jan;125(1-2):21-5. doi:
10.1007/s00508-012-0309-8. Epub 2013 Jan 5. PubMed PMID: 23292642.


66: Bulus H, Tas A, Morkavuk B, Koklu S, Soy D, Coskun A. Can the efficiency of
modified Alvarado scoring system in the diagnosis acute appendicitis be increased
with tenesmus? Wien Klin Wochenschr. 2013 Jan;125(1-2):16-20. doi:
10.1007/s00508-012-0308-9. Epub 2013 Jan 5. PubMed PMID: 23292641.


67: Akbal E, Köklü S, Koçak E, Cakal B, Güneş F, Başar O, Tuna Y, Senes M. Liver
fatty acid-binding protein is a diagnostic marker to detect liver injury due to
chronic hepatitis C infection. Arch Med Res. 2013 Jan;44(1):34-8. doi:
10.1016/j.arcmed.2012.11.007. Epub 2013 Jan 3. PubMed PMID: 23291381.


68: Sarikaya M, Koçak E, Köklü S, Akbal E. Acute gastric obstruction resulting
from gallstone-induced bezoar. Am Surg. 2012 Dec;78(12):E529. PubMed PMID:
23265111.


69: Demirci S, Akbal E, Koçak E, Taş A, Köklü S. Adipokine levels in the course
of mild biliary pancreatitis. Ann Nutr Metab. 2012;61(4):271-4. doi:
10.1159/000336288. Epub 2012 Dec 3. PubMed PMID: 23208155.


70: Aksoy EK, Yilmaz B, Köklü S. Autoimmune hepatitis/primary biliary cirrhosis
overlap syndrome developed in a patient with vitiligo and Hashimoto thyroiditis.
Eur J Gastroenterol Hepatol. 2013 Jan;25(1):121-2. doi:
10.1097/MEG.0b013e328359493e. PubMed PMID: 23196727.


71: Köklü S, Tuna Y, Gülşen MT, Demir M, Köksal AŞ, Koçkar MC, Aygün C, Coban S,
Ozdil K, Ataseven H, Akin E, Pürnak T, Yüksel I, Ataseven H, Ibiş M, Yildirim B,
Nadir I, Küçükazman M, Akbal E, Yüksel O, Başar O, Alkan E, Baykal O. Long-term
efficacy and safety of lamivudine, entecavir, and tenofovir for treatment of
hepatitis B virus-related cirrhosis. Clin Gastroenterol Hepatol. 2013
Jan;11(1):88-94. doi: 10.1016/j.cgh.2012.10.003. Epub 2012 Oct 9. PubMed PMID:
23063679.


72: Beyazit Y, Sayilir A, Koklu S, Torun S, Suvak B, Tas A, Purnak T, Kalkan IH,
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73: Bulus H, Koçak E, Yavuz A, Akkoca M, coşkun A, Köklü S. Intestinal
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74: Başar O, Akbal E, Köklü S, Koçak E, Tuna Y, Ekiz F, Gültuna S, Yιlmaz FM,
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75: Tas A, Koklu S, Cakal B, Yildiz F, Aktas S. Psoriatic colitis mimicking
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76: Yılmaz B, Köklü S, Bayraktar Y. Ulcerative colitis presenting with
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77: Coban Ş, Akbal E, Köklü S, Köklü G, Ulaşlı MA, Erkeç S, Aktaş B, Yüksel O,
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78: Tas A, Köklü S, Kocak E, Akbal E, Ergul B. An unusual cause of acute
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79: Purnak T, Beyazit Y, Ibis M, Koklu S, Efe C, Ozaslan E, Ciftci A, Tenlik I.
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80: Palabıyıkoğlu M, Ormeci N, Ekiz F, Beyler AR, Erdem H, Dökmeci A, Ozkan H,
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81: Özkan H, Erdal H, Tutkak H, Karaeren Z, Yakut M, Yüksel O, Köklü S. Letter of
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82: Akbal A, Akbal E, Selçuk B, Kurtaran A, Köklü S, Ersöz M, Akyüz M. How does
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83: Buluş H, Köklü S, Yavuz A, Akkoca M, Coşkun A. Bowel obstruction caused by
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84: Bulus H, Ergül B, Morkavuk B, Yavuz A, Akkoca M, Yildiz M, Köklü S. A very
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85: Buluş H, Akkoca M, Coskun A, Koçak E, Köklü S. Benign ovarian cyst presenting
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86: Yavuz A, Buluş H, Akkoca M, Özayar E, Ünlü EN, Akbal E, Köklü S. Systemic
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87: Simsek G, Bulus H, Tas A, Koklu S, Yilmaz SB, Coskun A. An unusual cause of
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88: Koåak E, Ergül B, Akbal E, Köklü S, Karakayali AS. Subcapsular hepatic
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89: Bulus H, Ergül B, Morkavuk B, Yavuz A, Akkoca M, Yildiz M, Köklü S. A very
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90: Yıldız M, Karakayalı AŞ, Taş A, Yıldız P, Yıldırım AC, Buluş H, Köklü S.
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91: Buluş H, Yavuz A, Yíldírím AC, Yíldíz M, Köklü S, Akbal E. A giant breast
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92: Tokat AO, Karasu S, Barlas AM, Akgün YA, Köklü S. Esophageal reconstruction
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93: Tuna Y, Taş A, Köklü S. Propofol-induced myoclonic seizures after endoscopic
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94: Pirti O, Koçak E, Güler O, Koçak G, Altunkaya C, Caydere M, Köklü S. An
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95: Akbal E, Koçak E, Taş A, Yüksel E, Köklü S. Visfatin levels in nonalcoholic
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96: Ergül B, Koçak E, Köklü S. Arthritis as a presenting symptom of subclinical
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97: Koçak E, Ergül B, Köklü S, Akbal E. Ectopıc spleen presentıng as an abdomınal
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98: Koçak E, Köklü S, Başar O, Yilmaz FM, Ciftçi A, Kaya C, Cesur S, Demirci S,
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99: Akbal E, Batgi H, Koçak E, Canatan T, Köklü S. Low-dose amiodarone-induced
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100: Köklü S, Akkuş MA, Taş A, Tufan Z, Tanrikulu Y, Kekilli M, Koçak E, Gönültaş
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101: Tas A, Köklü S, Yüksel I, Başar O, Akbal E, Cimbek A. No significant
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102: Ergül B, Koçak E, Akbal E, Köklü S, Astarci HM. Pegylated interferon
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103: Bulus H, Yildiz M, Alimogullari M, Simşek G, Köklü S, Koçak E. Gastric
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104: Buluş H, Koyuncu A, Yildiz M, Coşkun A, Köklü S, Akbal E. Chronic myeloid
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105: Beyazit Y, Koklu S, Tas A, Purnak T, Sayilir A, Kurt M, Turhan T, Celik T,
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106: Taş A, Koklu S, Beyazit Y, Akbal E, Kocak E, Celik H, Bıyıkoğlu I. The
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107: Tas A, Köklü S, Celik H. Loss of body hair as a side effect of albendazole.
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108: Tas A, Koklu S. Unusual cause of common bile duct dilatation in asymptomatic
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109: Taş A, Köklü S, Beyazit Y, Kurt M, Sayilir A, Yeşil Y, Çelik H. Thyroid
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110: Ormeci N, Bölükbaş F, Erden E, Coban S, Ekiz F, Erdem H, Palabıyıkoğlu M,
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111: Kaya G, Koçak E, Akbal E, Taş A, Köklü S. Comparison of the possible risk
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112: Tuna Y, Akbal E, Köklü S. Thrombotic thrombocytopenic purpura following
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113: Beyazit Y, Koklu S, Ozturk ZA, Yüksel O, Ibis M, Arhan M, Gultuna S, Sezer
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114: Ozkan H, Erdal H, Koçak E, Tutkak H, Karaeren Z, Yakut M, Köklü S.
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115: Ergül B, Koçak E, Köklü S. Behcet disease and celiac disease: to screen or
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116: Tuna Y, Koçak E, Dinçer D, Köklü S. Factors affecting the success of
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117: Ozkan H, Demirbaş S, Ibiş M, Akbal E, Köklü S. Diagnostic validity of serum
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118: Taş A, Koçak E, Akbal E, Köklü S. Treatment of glomerulonephritis associated
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119: Unverdi S, Ceri M, Köklü S, Unverdi H, Koçak E, Duranay M. Tenofovir as a
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120: Koçak E, Ergül B, Köklü S, Dinç S, Ozbalcı GS. Abundant intraperitoneal
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121: Köklü S, Koçak E, Akbal E. Air cholangiography for severe hilar obstruction
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122: Koçak E, Tuna Y, Ertugrul I, Arhan M, Köklü S. Metastasis of hepatocellular
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123: Cakal B, Koklu S, Beyazit Y, Ozdemir A, Beyazit F, Ulker A. Fatal colonic
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124: Yavuz A, Yıldız M, Aydın A, Yıldırım AC, Buluş H, Köklü S. Henoch Schonlein
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125: Ekiz F, Yüksel O, Koçak E, Yılmaz B, Altınbaş A, Çoban S, Yüksel I, Üsküdar
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126: Koçak E, Köklü S, Akbal E, Taş A, Karaca G, Astarcı MH, Güven B, Can M.
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127: Taş A, Köklü S, Beyazit Y, Karaca G, Astarcı HM, Akbal E, Koçak E, Topçu G,
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128: Karaca G, Pekcici R, Köklü S, Pirti O, Güler O. Isolated splenic hydatid
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129: Demirel AH, Akbal E, Köklü S, Kuru S, Cakal B, Dönmez M. An unusual cause of
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130: Karaca G, Koçak E, Pekici R, Güler O, Köklü S. A rare cause of acute
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131: Unverdi S, Ceri M, Öztürk MA, Akbal E, Ensari A, Yılmaz R, Kocak E, Inal S,
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132: Beyazit Y, Ibis M, Purnak T, Turhan T, Kekilli M, Kurt M, Sayilir A, Onal
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133: Tuna Y, Başar O, Dikici H, Köklü S. Rapid onset of ulcerative colitis after
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134: Koçak E, Köklü S, Akbal E. Extreme high serum level of carbohydrate antigen
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135: Taş A, Akbal E, Koçak E, Köklü S. Moxifloxacin-tetracycline-lansoprazole
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136: Karaca G, Pekcici MR, Özer H, Köklü S, Kavlakoğlu B, Astarci M, Güler O.
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137: Cakal B, Koklu S, Bykoğlu I, Purnak T, Beyazit Y. An unusual colonoscopic
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138: Köklü S, Başar O, Akbal E, Ibiş M. Gastric serrated adenoma polyp treated
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139: Taş A, Aydın YY, Arhan M, Köklü S. Hydrogen peroxide exposure mimicking
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140: Akbal E, Köklü S, Koçak E, Cakal B, Kılıç F. 5-aminosalicylic acid induced
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141: Köklü S, Koçak E, Erel S, Dinç S. Crohn's disease presenting with multiple
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142: Köklü S, Koçak E, Tas A, Biyikoğlu I, Ustün H. Metastatic polyps in the
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143: Beyazit Y, Köklü S, Akbal E, Kurt M, Kekilli M, Haznedaroglu IC. Successful
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144: Ataseven H, Yüksel I, Gültuna S, Köklü S, Uysal S, Basar O, Sasmaz N. Fatal
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145: Ozkan H, Erdal H, Tutkak H, Karaeren Z, Yakut M, Yüksel O, Köklü S.
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146: Gulsen MT, Beyazit Y, Guclu M, Koklu S. Testing for hepatitis B and C virus
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147: Taş A, Ozer E, Köklü S, Kocak E. Signet ring cell carcinoma of the ampulla
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148: Akbal E, Taş A, Köklü S, Biyikoğlu I, Köklü H. A giant intra-abdominal mass
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149: Akbal E, Koçak E, Taş A, Köklü S. Phlebotomy in the treatment of primary
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150: Kocak G, Kocak E, Yilmaz SR, Koklu S, Duranay M, Yalcin F, Albayrak Y. MEFV
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151: Tuna Y, Beyazit Y, Koklu S. Neuroendocrine tumor of the cecum in a young boy
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152: Akbal E, Altunkaya C, Köklü S. A large mass in the cecum of a young man.
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153: Cakal B, Beyazit Y, Koklu S, Akbal E, Biyikoglu I, Yilmaz G. Elevated
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154: Çoban S, Tutal E, Alpay D, Köklü S. An unexpected cause of severe anemia in
an adult patient: a pharyngeal leech (with video). Gastrointest Endosc. 2011
Feb;73(2):360-1. doi: 10.1016/j.gie.2010.07.032. Epub 2010 Sep 25. PubMed PMID:
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155: Köklü S, Akbal E, Demirel AH, Gönültaş MA. Multiple cancer foci in the colon
of a man with operated rectum carcinoma. Am Surg. 2010 Sep;76(9):1021-2. PubMed
PMID: 20836356.


156: Kekilli M, Köklü S, Beyazit Y, Arhan M, Basar O. An unusual gastrointestinal
manifestation of non-steroidal anti-inflammatory drugs. Dig Endosc. 2010
Jul;22(3):251-2. doi: 10.1111/j.1443-1661.2010.00999.x. PubMed PMID: 20642623.


157: Taş A, Akbal E, Akgedik S, Köklü S. Mucinous cystadenoma of the peritoneum:
A rare cause of ascites. Dig Liver Dis. 2010 Dec;42(12):910-1. doi:
10.1016/j.dld.2010.05.016. Epub 2010 Jul 1. PubMed PMID: 20594927.


158: Taş A, Akbal E, Koçak E, Köklü S, Yilmaz O, Turan A. Abdominal pain due to
rectus abdominis muscle haematoma associated with anticoagulant therapy. Emerg
Med Australas. 2010 Jun;22(3):252-3. doi: 10.1111/j.1742-6723.2010.01294.x.
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159: Karaca G, Tekten G, Güler O, Kuşabbi R, Köklü S, Ustün H, Altunkaya C. Acute
appendicitis and cecal diverticulitis in a young woman. Emerg Med Australas. 2010
Apr;22(2):192-3. doi: 10.1111/j.1742-6723.2010.01277.x. PubMed PMID: 20534057.


160: Gumus M, Yilmaz O, Ersoy O, Demirezen AB, Akin E, Köklü S. Intrahepatic
portal vein aneurysm in an asymptomatic patient. Ann Hepatol. 2010
Apr-Jun;9(2):213-4. PubMed PMID: 20526021.


161: Köklü S, Oztürk ZA, Altay M, Cimbek A, Biyikoğlu I, Tuna Y. Diffuse
polyposis of small intestine. Acta Gastroenterol Belg. 2010 Jan-Mar;73(1):69-70.
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162: Yüksel I, Ataseven H, Başar O, Köklü S, Ertuğrul I, Ulker A, Dağlı U, Saşmaz
N. Peripheral arthritis in the course of inflammatory bowel diseases. Dig Dis
Sci. 2011 Jan;56(1):183-7. doi: 10.1007/s10620-010-1260-z. Epub 2010 May 11.
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163: Köklü S, Gültuna S, Yuksel O. Left-sided portal hypertension: 5-years
follow-up. Hepatogastroenterology. 2010 Jan-Feb;57(97):1-2. PubMed PMID:
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164: Tuna Y, Koçak E, Köklü S, Yüksel I. An unusual cause of chronic diarrhea in
a patient with chronic lymphocytic leukemia. South Med J. 2010 May;103(5):487-8.
doi: 10.1097/SMJ.0b013e3181d82d67. PubMed PMID: 20375934.


165: Yilmaz FM, Yilmaz G, Erol MF, Köklü S, Yücel D. Nitric oxide, lipid
peroxidation and total thiol levels in acute appendicitis. J Clin Lab Anal.
2010;24(2):63-6. doi: 10.1002/jcla.20301. PubMed PMID: 20333767; PubMed Central
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166: Köklü S, Alioğlu B, Akbal E, Koçak E. Celiac disease in siblings with
Pearson syndrome. Am J Med Sci. 2010 Apr;339(4):392-4. doi:
10.1097/MAJ.0b013e3181cefba3. PubMed PMID: 20228667.


167: Unverdi S, Köklü S, Tuncer F, Duranay M. Gastroduodenal plasmacytoma
presenting with jaundice. South Med J. 2010 Feb;103(2):159-61. PubMed PMID:
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168: Köklü S, Akbal E, Yildiz M, Kaptanoğlu B. An unusual cause of intractable
hematemesis in a 72-year-old man. J Am Geriatr Soc. 2009 Nov;57(11):2154-5. doi:
10.1111/j.1532-5415.2009.02532.x. PubMed PMID: 20121962.


169: Köklü S, Yüksel O, Onur I, Unverdi S, Biyikoğlu I, Akbal E, Sengül D,
Unverdi H, Ekşioğlu M. Ileocolonic involvement in Behçet's disease: endoscopic
and histological evaluation. Digestion. 2010;81(4):214-7. doi: 10.1159/000264643.
Epub 2010 Jan 21. PubMed PMID: 20110705.


170: Köklü S, Yuksel O, Coban S, Basar O. Is endoscopic band ligation necessary
for primary prophylaxis of esophageal varices without high bleeding risks?
Hepatology. 2009 Dec;50(6):2052; author reply 2052-3. doi: 10.1002/hep.23331.
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171: Biyikoğlu I, Babali A, Cakal B, Köklü S, Filik L, Astarci MH, Ustün H,
Ustündağ Y, Akbal E. Do scattered white spots in the duodenum mark a specific
gastrointestinal pathology? J Dig Dis. 2009 Nov;10(4):300-4. doi:
10.1111/j.1751-2980.2009.00399.x. PubMed PMID: 19906109.


172: Köklü S, Kekilli M, Arhan M, Demirel HA, Dadasov M, Yüksel O. A congenital
anomaly as a cause of abdominal pain in a 74-year-old man. J Am Geriatr Soc. 2009
Sep;57(9):1728-9. doi: 10.1111/j.1532-5415.2009.02418.x. PubMed PMID: 19895447.


173: Babalı A, Cakal E, Purnak T, Bıyıkoğlu I, Cakal B, Yüksel O, Köklü S. Serum
α-fetoprotein levels in liver steatosis. Hepatol Int. 2009 Dec;3(4):551-5. doi:
10.1007/s12072-009-9156-8. Epub 2009 Nov 5. PubMed PMID: 19890679; PubMed Central
PMCID: PMC2790592.


174: Karaca G, Pirti O, Güler O, Köklü S. Isolated pancreatic tuberculosis in a
patient with total situs inversus. Am J Gastroenterol. 2009 Oct;104(10):2650-1.
doi: 10.1038/ajg.2009.394. PubMed PMID: 19806112.


175: Akbal E, Koçak E, Köklü S. Mesalamine (pentasa)-induced painful skin
lesions. Inflamm Bowel Dis. 2010 May;16(5):725-6. doi: 10.1002/ibd.21087. PubMed
PMID: 19714758.


176: Koçak E, Köklü S, Akbal E, Huddam B, Azak A, Yilmaz SR. Development of
glomerulonephritis early in the course of Crohn's disease. Inflamm Bowel Dis.
2010 Apr;16(4):548-9. doi: 10.1002/ibd.21044. PubMed PMID: 19637383.


177: Ataseven H, Yüksel I, Arhan M, Köklü S, Başar O, Ertuğrul I, Saşmaz N.
Mucinous carcinoma of the rectum in a boy presenting with bloody diarrhea. Clin
Colorectal Cancer. 2009 Jul;8(3):169-71. doi: 10.3816/CCC.2009.n.028. PubMed
PMID: 19632933.


178: Ataseven H, Oztürk ZA, Arhan M, Yüksel O, Köklü S, Ibiş M, Başar O, Yilmaz
FM, Yüksel I. Cancer antigen 125 levels in inflammatory bowel diseases. J Clin
Lab Anal. 2009;23(4):244-8. doi: 10.1002/jcla.20323. PubMed PMID: 19623645;
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179: Köklü S, Gültuna S, Başar O, Yuksel I, Oktay M. Cholestasis preceding ileal
perforation in a patient with typhoid fever. Intern Emerg Med. 2009
Oct;4(5):451-2. doi: 10.1007/s11739-009-0282-z. Epub 2009 Jul 16. PubMed PMID:
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180: Yüksel O, Köklü S, Başar O, Yüksel I, Akgül H. Erosive gastritis mimicking
watermelon stomach. Am J Gastroenterol. 2009 Jun;104(6):1606-7. doi:
10.1038/ajg.2009.108. Epub 2009 Apr 21. PubMed PMID: 19491883.


181: Köklü S, Bulut M, Cakal B, Bozkurt A, Yüksel O. Gastric cancer presenting
with Plummer-Vinson Syndrome. J Am Geriatr Soc. 2009 May;57(5):933-4. doi:
10.1111/j.1532-5415.2009.02246.x. PubMed PMID: 19470022.


182: Köklü S, Uçar E. An unusual cause of abdominal pain in a 75-year-old man. J
Am Geriatr Soc. 2009 May;57(5):925-6. doi: 10.1111/j.1532-5415.2009.02240.x.
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183: Yüksel O, Helvaci K, Başar O, Köklü S, Caner S, Helvaci N, Abayli E,
Altiparmak E. An overlooked indicator of disease activity in ulcerative colitis:
mean platelet volume. Platelets. 2009 Jun;20(4):277-81. doi:
10.1080/09537100902856781. PubMed PMID: 19459134.


184: Arhan M, Köklü S, Yalçin F, Batgi H, Yilmaz SR, Yüksel O. Severe intestinal
bleeding in a patient with Wegener's granulomatosis. Am J Gastroenterol. 2009
Aug;104(8):2119-20. doi: 10.1038/ajg.2009.209. Epub 2009 May 19. PubMed PMID:
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185: Gültuna S, Köklü S, Arhan M, Aydin F, Mesci P, Usküdar O. Ciprofloxacin
induced tendinitis. J Clin Rheumatol. 2009 Jun;15(4):201-2. doi:
10.1097/RHU.0b013e3181a7b0d4. PubMed PMID: 19455056.


186: Usküdar O, Zengin N, Köklü S, Yüksel I, Başar O. Giant hepatic paraganglioma
succesfully treated with embolisation. Acta Gastroenterol Belg. 2008
Oct-Dec;71(4):427-8. PubMed PMID: 19317288.


187: Kisacik B, Akdogan A, Yilmaz G, Karadag O, Yilmaz FM, Koklu S, Yuksel O,
Ertenli AI, Kiraz S. Serum adenosine deaminase activities during acute attacks
and attack-free periods of familial Mediterranean fever. Eur J Intern Med. 2009
Jan;20(1):44-7. doi: 10.1016/j.ejim.2008.04.020. Epub 2008 Jun 20. PubMed PMID:
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188: Ibiş M, Yüksel O, Yilmaz G, Köklü S, Yilmaz FM, Ertuğrul I, Uçar E,
Altiparmak ME. Serum angiotensin converting enzyme levels in pancreatic diseases.
Hepatogastroenterology. 2008 Sep-Oct;55(86-87):1814-7. PubMed PMID: 19102399.


189: Yüksel I, Usküdar O, Köklü S, Başar O, Gültuna S, Unverdi S, Oztürk ZA,
Sengül D, Arikök AT, Yüksel O, Coban S. Inlet patch: associations with endoscopic
findings in the upper gastrointestinal system. Scand J Gastroenterol. 2008
Aug;43(8):910-4. PubMed PMID: 19086275.


190: Erer B, Yilmaz G, Yilmaz FM, Koklu S. Assessment of adenosine deaminase
levels in rheumatoid arthritis patients receiving anti-TNF-alpha therapy.
Rheumatol Int. 2009 Apr;29(6):651-4. doi: 10.1007/s00296-008-0750-1. Epub 2008
Oct 25. PubMed PMID: 18953538.


191: Yüksel I, Ataseven H, Köklü S, Ertuğrul I, Başar O, Odemiş B, Ibiş M, Saşmaz
N, Sahin B. Intermittent versus continuous pantoprazole infusion in peptic ulcer
bleeding: a prospective randomized study. Digestion. 2008;78(1):39-43. doi:
10.1159/000158227. Epub 2008 Sep 29. PubMed PMID: 18824852.


192: Koruk I, Oztürk ZA, Köklü S, Koruk S, Ozdede S. Port-site metastasis after
laparoscopic cholecystectomy. Acta Gastroenterol Belg. 2008 Apr-Jun;71(2):283-4.
PubMed PMID: 18720946.


193: Yüksel O, Bolat AD, Köklü S, Altiparmak E, Albayrak M, Caner S. Ischemic
colitis, an unusual complication of colonoscopy. South Med J. 2008
Sep;101(9):972-3. doi: 10.1097/SMJ.0b013e31817ed2a5. PubMed PMID: 18708963.


194: Gültuna S, Usküdar O, Köklü S, Başar O, Yüksel I, Alper M. An overlooked
lesion of the anorectal junction: cloacogenic polyp. Hepatogastroenterology. 2008
Mar-Apr;55(82-83):1p preceding table of contents. PubMed PMID: 18613352.


195: Köklü S, Gültuna S, Yüksel I, Başar O, Usküdar O, Han U. Diffuse
gastroduodenal metastasis of conjunctival malignant melanoma. Am J Gastroenterol.
2008 May;103(5):1321-3. doi: 10.1111/j.1572-0241.2007.01782_14.x. PubMed PMID:
18477368.


196: Ertuğrul I, Köklü S, Başar O, Yüksel O, Uçar E, Coban S, Ibiş M, Arhan M,
Odemiş B, Saşmaz N. Thrombosis of the portal venous system: a prospective study.
J Clin Gastroenterol. 2008 Aug;42(7):835-8. doi: 10.1097/MCG.0b013e318046eadc.
PubMed PMID: 18469722.


197: Koşan B, Yüksel O, Ustün I, Köklü S, Topal F, Yilmaz M, Ergül B,
Karaahmetoğlu S, Eskioğlu E, Altiparmak E. Role of endogenous cortisol on
Helicobacter pylori colonization. Clin Biochem. 2008 Jul;41(10-11):917-9. doi:
10.1016/j.clinbiochem.2008.03.004. Epub 2008 Mar 19. PubMed PMID: 18381206.


198: Yüksel O, Parlak E, Köklü S, Ertugrul I, Tunç B, Sahin B. Conscious sedation
during endoscopic retrograde cholangiopancreatography: midazolam or midazolam
plus meperidine? Eur J Gastroenterol Hepatol. 2007 Nov;19(11):1002-6. PubMed
PMID: 18049171.


199: Koruk I, Parlak E, Seçilmiş S, Akdoğan M, Köklü S. Endoscopic
sphincteroplasty with large balloon dilatation for extraction of difficult common
bile duct stones. Dig Dis Sci. 2008 Jun;53(6):1737-8. PubMed PMID: 17940901.


200: Babali A, Biyikoğlu I, Oztürk ZA, Köklü S. Helicobacter pylori and iron
deficiency. South Med J. 2007 Sep;100(9):915-6. PubMed PMID: 17902298.


201: Ibiş M, Köklü S, Yilmaz FM, Başar O, Yilmaz G, Yüksel O, Yildirim E, Oztürk
ZA. Serum adenosine deaminase levels in pancreatic diseases. Pancreatology.
2007;7(5-6):526-30. Epub 2007 Sep 27. PubMed PMID: 17901713.


202: Yolcu OF, Köklü S, Yüksel O, Coban S, Ayaz S, Akif Oztürk M, Benekli M.
Vascular endothelial growth factor receptor-1 levels in hepatocellular carcinoma
and correlations with clinicopathological features. Hepatogastroenterology. 2007
Jul-Aug;54(77):1526-8. PubMed PMID: 17708290.


203: Coban S, Yüksel O, Koçkar MC, Köklü S, Basar O, Tutkak H, Ormeci N. The
significance of serum transforming growth factor beta 1 in detecting of gastric
and colon cancers. Hepatogastroenterology. 2007 Jul-Aug;54(77):1472-6. PubMed
PMID: 17708279.


204: Akay H, Akay A, Köklü S. Serum and tissue beta-2 microglobulin levels in
patients with Helicobacter pylori infection. Dig Dis Sci. 2008 Feb;53(2):358-62.
Epub 2007 Jun 28. PubMed PMID: 17597407.


205: Biyikoğlu I, Oztürk ZA, Köklü S, Babali A, Akay H, Filik L, Basat O, Ozer H,
Ozer E. Primary anorectal malignant melanoma: two case reports and review of the
literature. Clin Colorectal Cancer. 2007 May;6(7):532-5. PubMed PMID: 17553203.


206: Ertuğrul I, Köklü S, Aktaş B. Total colectomy for all colorectal carcinoma
cases or follow-up indefinitely? Dig Dis Sci. 2007 Jun;52(6):1398-9. Epub 2007
Apr 10. PubMed PMID: 17420935.


207: Köksal AS, Köklü S, Ibiş M, Balci M, Ciçek B, Saşmaz N, Sahin B. Clinical
features, serum interleukin-6, and interferon-gamma levels of 34 turkish patients
with hepatoportal sclerosis. Dig Dis Sci. 2007 Dec;52(12):3493-8. Epub 2007 Apr
3. PubMed PMID: 17404864.


208: Köklü S, Coban S, Yüksel O, Arhan M. Left-sided portal hypertension. Dig Dis
Sci. 2007 May;52(5):1141-9. Epub 2007 Mar 24. Review. PubMed PMID: 17385040.


209: Başar O, Oztürk MA, Köklü S, Ayaz S, Yüksel O, Kiraz S, Ertenli I, Calgüneri
M. Plasma levels of soluble vascular endothelial growth factor receptor-1
(sVEGFR-1) in familial Mediterranean fever. Joint Bone Spine. 2007
Jan;74(1):52-5. Epub 2006 Apr 17. PubMed PMID: 17223601.


210: Coban S, Köklü S, Sencer H, Ekiz F, Ormeci N. Low dose amiodarone associated
cirrhosis. J Gastroenterol Hepatol. 2007 Jan;22(1):140-1. PubMed PMID: 17201899.


211: Coban S, Ozkan H, Köklü S, Yüksel O, Koçkar MC, Akar T, Ormeci N. The
utility of serum receptor-binding cancer antigen expressed on SiSo cells in
gastrointestinal tract cancers. Can J Gastroenterol. 2006 Sep;20(9):593-6. PubMed
PMID: 17001401; PubMed Central PMCID: PMC2659945.


212: Ozkan H, Akar T, Köklü S, Coban S. Significance of serum receptor-binding
cancer antigen (RCAS1) in pancreatic cancer and benign pancreatobiliary diseases.
Pancreatology. 2006;6(4):268-72. Epub 2006 Apr 19. PubMed PMID: 16636598.


213: Köksal D, Köksal AS, Köklü S, Ciçek B, Altiparmak E, Sahin B. Primary
tuberculous liver abscess: a case report and review of the literature. South Med
J. 2006 Apr;99(4):393-5. Review. PubMed PMID: 16634251.


214: Beyazit Y, Guven GS, Kekilli M, Koklu S, Yolcu OF, Shorbagi A. Acute
pericarditis and renal failure complicating acute hepatitis A infection. South
Med J. 2006 Jan;99(1):82-4. PubMed PMID: 16466128.


215: Arhan M, Ibiş M, Koklu S, Ozin Y, Oymaci E. Behcet's disease complicated
with descending colon perforation. Dig Surg. 2005;22(5):381. Epub 2006 Jan 16.
PubMed PMID: 16424670.


216: Yüksel O, Köklü S, Arhan M, Yolcu OF, Ertuğrul I, Odemiş B, Altiparmak E,
Sahin B. Effects of esophageal varice eradication on portal hypertensive
gastropathy and fundal varices: a retrospective and comparative study. Dig Dis
Sci. 2006 Jan;51(1):27-30. PubMed PMID: 16416205.


217: Coban S, Palabiyikoğlu M, Ensari A, Idilman R, Köklü S, Yolcu OF, Ormeci N.
Intestinal B cell lymphoma associated with chronic hepatitis C and celiac
disease. Dig Dis Sci. 2005 Dec;50(12):2359-61. PubMed PMID: 16416190.


218: Ibiş M, Köklü S, Başar O, Ertuğrul I, Dişibeyaz S, Ulker A. A gastric
fistula with a pancreatic mucinous tumor. Dig Dis Sci. 2005 Dec;50(12):2211-3.
PubMed PMID: 16416163.


219: Başar O, Ibiş M, Uçar E, Ertuğrul I, Yolcu OF, Köklü S, Parlak E, Ulker A.
Recurrent pancreatitis in a patient with autosomal-dominant polycystic kidney
disease. Pancreatology. 2006;6(1-2):160-2. Epub 2005 Dec 13. PubMed PMID:
16354965.


220: Köklü S, Parlak E, Yüksel O, Sahin B. Endoscopic retrograde
cholangiopancreatography in the elderly: a prospective and comparative study. Age
Ageing. 2005 Nov;34(6):572-7. PubMed PMID: 16267181.


221: Coban S, Başar O, Köklü S, Ekiz F, Ormeci N. A toothpick in the antrum. Dig
Dis Sci. 2005 Oct;50(10):1880-1. PubMed PMID: 16187191.


222: Başar O, Kisacik B, Bozdogan E, Yolcu OF, Ertugrul I, Köklü S. An unusual
cause of acalculous cholecystitis during pregnancy: hepatitis A virus. Dig Dis
Sci. 2005 Aug;50(8):1532. PubMed PMID: 16110848.


223: Başar O, Köklü S, Köksal D, Köksal AS, Ibiş M, Uçar E, Ulker A. Intracranial
tuberculomas in a nonimmuncompromised patient with abdominal tuberculosis
misdiagnosed as Crohn's disease. Dig Dis Sci. 2005 Jul;50(7):1279-82. PubMed
PMID: 16047472.


224: Ibiş M, Odemiş B, Başar O, Cakal B, Beyazt F, Köklü S. Postpartum severe
portal vein thrombosis and pyogenic liver abscess. J Clin Gastroenterol. 2005
Aug;39(7):646. PubMed PMID: 16000941.


225: Altlparmak E, Koklu S, Yalinkilic M, Yuksel O, Cicek B, Kayacetin E, Sahin
T. Viral and host causes of fatty liver in chronic hepatitis B. World J
Gastroenterol. 2005 May 28;11(20):3056-9. PubMed PMID: 15918189; PubMed Central
PMCID: PMC4305839.


226: Köklü S, Yüksel O, Arhan M, Coban S, Başar O, Yolcu OF, Uçar E, Ibiş M,
Ertugrul I, Sahin B. Report of 24 left-sided portal hypertension cases: a
single-center prospective cohort study. Dig Dis Sci. 2005 May;50(5):976-82.
PubMed PMID: 15906778.


227: Köksal A, Ekmekçi Y, Karadeniz Y, Köklü S, Apan T, Yilmaz M, Sezikli M, Unal
B, Demirel T, Yildiz A. Helicobacter pylori seropositivity and atherosclerosis
risk factors. Dig Dis. 2004;22(4):386-9. PubMed PMID: 15812164.


228: Köksal AS, Usküdar O, Köklü S, Yüksel O, Beyazit Y, Sahin B.
Propranolol-exacerbated mesenteric ischemia in a patient with hyperthyroidism.
Ann Pharmacother. 2005 Mar;39(3):559-62. Epub 2005 Feb 8. PubMed PMID: 15701768.


229: Köklü S, Oztürk MA, Balci M, Yüksel O, Ertenli I, Kiraz S. Interferon-gamma
levels in familial Mediterranean fever. Joint Bone Spine. 2005 Jan;72(1):38-40.
PubMed PMID: 15681246.


230: Coban S, Yüksel O, Köklü S, Ceyhan K, Baykara M, Dökmeci A. Atypical
presentation of hepatocellular carcinoma: a mass on the left thoracic wall. BMC
Cancer. 2004 Dec 1;4:89. PubMed PMID: 15574203; PubMed Central PMCID: PMC535896.


231: Ertuğrul I, Köklü S, Köksal AS, Coban S, Başar O, Ibiş M, Sahin B. Treatment
of bronchobiliary fistula due to an infected hydatid cyst by a nonsurgical
approach. Dig Dis Sci. 2004 Oct;49(10):1595-7. PubMed PMID: 15573911.


232: Köklü S, Köksal AS, Asil M, Kiyici H, Coban S, Arhan M. Probable
sulbactam/ampicillin-associated prolonged cholestasis. Ann Pharmacother. 2004
Dec;38(12):2055-8. Epub 2004 Oct 19. PubMed PMID: 15494387.


233: Köklü S, Coban S, Ertugrul I, Başar O, Ensari A, Akyol A, Ormeci N.
Intestinal obstruction in celiac disease: case report. Dig Dis Sci. 2004
Sep;49(9):1485-8. PubMed PMID: 15481324.


234: Köklü S, Arhan M, Küksal A, Ulker A, Temuüin T. An unusual presentation of
hepatocellular carcinoma. Int J Gastrointest Cancer. 2003;34(2-3):63-5. PubMed
PMID: 15361636.


235: Yolcu OF, Köklü S, Köksal AS, Yüksel O, Beyazit Y, Basar O.
Alfuzosin-induced acute hepatitis in a patient with chronic liver disease. Ann
Pharmacother. 2004 Sep;38(9):1443-5. Epub 2004 Jul 27. PubMed PMID: 15280514.


236: Köklü S, Yüksel O, Yolcu OF, Arhan M, Altiparmak E. Cholestatic attack due
to ampicillin and cross-reactivity to cefuroxime. Ann Pharmacother. 2004
Sep;38(9):1539-40. Epub 2004 Jul 20. PubMed PMID: 15266040.


237: Yüksel O, Köklü S, Uçar E, Saşmaz N, Sahin B. Severe recurrent
gastrointestinal bleeding due to angiodysplasia in a Bernard-Soulier patient: an
onerous medical concomitance. Dig Dis Sci. 2004 May;49(5):885-7. PubMed PMID:
15259515.


238: Arhan M, Koklu S, Koksal AS, Yolcu OF, Koruk S, Koruk I, Kayacetin E.
Alverine citrate induced acute hepatitis. World J Gastroenterol. 2004 Aug
1;10(15):2303-4. PubMed PMID: 15259090; PubMed Central PMCID: PMC4724969.


239: Coban S, Koklu S, Ertugrul I, Kuzu I, Bahar K. Obstructive jaundice in a
patient with multiple myeloma. J Gastroenterol Hepatol. 2004 Jul;19(7):837-8.
PubMed PMID: 15209639.


240: Köklü S, Köksal A, Yolcu OF, Bayram G, Sakaoğullari Z, Arda K, Sahin B.
Isolated splenic vein thrombosis: an unusual cause and review of the literature.
Can J Gastroenterol. 2004 Mar;18(3):173-4. Review. PubMed PMID: 15054491.


241: Filik L, Odemiş B, Köklü S, Tola M, Yurdakul M, Sahin B. Arterioportal
fistula causing jejunal variceal hemorrhage. Turk J Gastroenterol. 2003
Dec;14(4):266-9. PubMed PMID: 15048603.


242: Ozçakar L, Köklü S, Kaymak B, Kuran S, Sakaoğullari Z. The burden of
amyloidosis on the gastrointestinal tract of an ankylosing spondylitis patient.
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243: Filik L, Biyikoğlu I, Akdoğan M, Oğuz D, Köklü S, Köksal AS. Two cases with
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