Prof. Dr. Mehmet Sait Buğdacı is a highly experienced physician specializing in Internal Medicine and Gastroenterology. He completed his medical education and specialty training at Istanbul University Cerrahpaşa Faculty of Medicine and Şişli Etfal Training and Research Hospital. His clinical interests include gastrointestinal diseases, endoscopic procedures, and clinical research. He has contributed to medical education through numerous scientific publications and textbooks and currently sees patients at Central Hospital.

Areas of Interest • Pediatric gastrointestinal surgery • Anorectal malformations and motility disorders • Minimally invasive pediatric surgery • Pediatric colorectal and pelvic floor disorders

EDUCATION:

2000 - SSK Okmeydanı Training and Research Hospital, .

1996 - Istanbul University, Istanbul Faculty of Medicine

EXPERIENCE:

2019 - Istanbul Medipol University Pendik Hospital

2017 - 2019 - Private Adatıp Kurtköy Hospital

2005 - 2017 - Private Avicenna Umut Hospital

2003 - 2005 - SSK Yalova Regional Hospital

2002 - 2003 - Kayseri Military Hospital

Pediatrician, Pediatric Gastroenterology and Nutrition Specialist

Education

Yeditepe University School of Medicine

Professor of Pediatrics (Chair of the Department)

2004 - 2007

Dokuz Eylül University School of Medicine

Pediatric Gastroenterology Sub-specialty

1995 – 1998

Hacettepe University School of Medicine

Pediatrics Instructor

1985 - 1987

Professional Experience

Ataşehir Florence Nightingale Hospital

Pediatrician, Pediatric Gastroenterology

2017 – Present

Kadıköy Şifa Ataşehir Hospital

Pediatric Gastroenterology and Nutrition

2013 – 2017 

Dokuz Eylül University School of Medicine

Professor of Pediatrics

1994 – 2004

Publications

Cevik N, Buyukgebiz B. Interaction between human blood group (ABO) substances and enteropathogenic

bacterial agents. Turk J Pediatr. 1987. Link

Buyukgebiz B, Ozalp I, Oran O. Investigation of serum vitamin A levels of children who had a history of

recurrent diarrhoea. J Trop Pediatrics. 1990. Link

Languages

Turkish: Native

English: Advanced

Dr. Zuhal Cakmak Peksen is a Family Medicine Specialist since 2017. She earned her MD from Çukurova University in 2010. She completed specialty training at Yüzüncü Yıl University between 2013 and 2017. She is currently studying for a bachelor’s degree in Health Management at Anadolu University (2024–present).

She has 15 years of clinical practice (2010–2025) across 8 institutions. Her experience includes research in Family Medicine (2013–2017) and work at several Family Health Centers. Since 2020, she has served at TOKİ Avrupa Family Health Center in Gaziosmanpaşa, Istanbul.

Experience

2017 - 2019 Okan University Hospital

2019 - Medipol University Pendik Hospital

Education

2016 Marmara University Faculty of Medicine, Chest Diseases

2007 St. Cyril and Methodius University, Faculty of Medicine

Publications

1- Frequency of Immunodeficiency in Adult Non-Cystic Fibrosis Bronchiectasis Patients; Specialization Thesis

2- Canan Cimşit, Melahat Bekir, Sait Karakurt, Emel Eryüksel, Ultrasonographic evaluation of diaphragm thickness in COPD – Marmara Medical Journal 2016; 29:8-13

3- Emel Eryuksel, Canan Cimsit, Melahat Bekir, Çagatay Cimsit, Sait Karakurt, Diaphragmatic Thickness Fraction in Subjects at High Risk for COPD Exacerbations Respiratory Care December 2017

4- Melahat Bekir, T. Bahadır Üskül, Pulmonary Functions in Patients With Idiopathic Scoliosis The Journal of Turkish Spinal Surgery ; April 2017

5- Emel Eryuksel, Canan Cimsit, Melahat Bekir, Cagatay Cimşit, Sait Karakurt, Is Diaphragmatic Thickness fraction valuable in Identifying High-Risk Chronic Obstructive Pulmonary Disease Patients, European Respiratory Journal Sep 2017

6- Melahat Bekir Külah, Şehnaz Olgun Yıldızeli, Derya Kocakaya, Berrin Ceyhan, The Effect of Clinical Findings on One-Year Disease Course in Adult Bronchiectasis Patients Other Than Cystic Fibrosis, 21st Annual Congress of the Turkish Thoracic Society _ Belek, Turkey 2018

7- Melahat Bekir Külah, Şehnaz Olgun Yıldızeli Derya Kocakaya, Emel Eryüksel, Elif Karakoç Aydıner, İsmail Öğülür, Berrin Bağcı Ceyhan, Quality of Life in Adult Bronchiectasis Patients Other Than Cystic Fibrosis: The Role of Psychological Status and Disease Severity 20th Annual Congress of the Turkish Thoracic Society – Belek Türkiye 2017

8- Berrin Ceyhan, Melahat Bekir, Şehnaz olgun Yıldızeli, Derya Kocakaya , Emel Eryüksel, Validity and reliability of the Turkish version of the EMBARC (European Bronchiectasis Audit and Research Collaboration) quality of life scale in patients with non-cystic fibrosis bronchiectasis. Turkish Thoracic Society 20th Annual Congress – Belek, Turkey 2017 (POSTER AWARD WINNER)

9- Melahat Bekir, Şehnaz Olgun Yıldizeli, Derya Kocakaya, Hüseyin Arıkan, Emel Eryüksel, Berrin Bağcı Beyhan, Relationship Between Vitamin D Levels and Lung Functions, Clinical Indexes, Anxiety-Depression Symptoms in Adult Non-Cystic Fibrosis Bronchiectasis Patients – 19th Annual Congress of the Turkish Thoracic Society - Belek, Turkey 2016

10- Melahat Bekir, Derya Kocakaya, Şehnaz Olgun, Berrin Bağcı Ceyhan, Anticoagulant Treatment Approach in a Case of Venous Thrombosis Causing Superior Vena Cava Syndrome with Active Bleeding – 18th Annual Congress of the Turkish Thoracic Society – Belek, Turkey 2015

11- Melahat Bekir, Berrin Bağcı Ceyhan, Life-Threatening Bleeding After Anticoagulation with Rivaroxaban: Two Case Reports, 18th Annual Congress of the Turkish Thoracic Society – Belek, Turkey 2015

12- Şehnaz Olgun Yıldızeli, Çagatay Nuri Cimşit, Semiha Emel Eryüksel, Canan Cimşit, Melahat Bekir, Tuğçe Yakut, The Relationship of Pulmonary CT Angiography with Clinical Scores in Pulmonary Embolism – Turkish Thoracic Society 18th Annual Congress – Belek Turkey 2015

13- Melahat Bekir, Canan Cimşit, Hüseyin Arıkan, Derya Kocakaya, Şehnaz,Olgun, Semiha Emel Eryüksel, Sait Karakurt, Diaphragm Thickness in COPD Patients and Its Relationship with Symptoms, Turkish Thoracic Society 17th Annual Congress – Belek, Turkey 2014

14- Melahat Bekir Külah, Frequency of Immunodeficiency in Patients with Non-Cystic Fibrosis Bronchiectasis and its Relationship with Clinical Parameters, 20th Annual Congress of the Turkish Thoracic Society – Belek Türkiye 2017

15- Berrin Ceyhan, Melahat Bekir Külah, Şehnaz Olgun Yıldızeli, Derya Kocakaya, One Year Follow-Up of Respiratory Health Outcomes in Adult Patients with Non-Cystic Fibrosis Bronchiectasis ERS 2018

16- Melahat Bekir, Şehnaz Olgun Yıldızeli, Derya Kocakaya, Emel Eryüksel, Elif Karakoç, İsmail Öğülür Berrin Bağcı Ceyhan Immun Deficiency in Patients with Non Cystic Fibrosis Bronchiectasis and Relationship with Clinical Parameters ATS Conference 2017- Washington, DC 2017

17- Melahat Bekir Külah, Sehnaz Olgun Yildizeli, Derya Kocakaya, Emel Eryuksel, Berrin Bagci Ceyhan Health Related Quality of Life Among Adult Patients With non Cf Bronchiectasis: The Role of Psychological status and disease severity ERS International Congress 2017, Milan Italy 2017

18- Melahat Bekir, Şehnaz Olgun Yıldızeli, Derya Kocakaya, Hüseyin Arıkan, Emel Eryüksel, Berrin Bağcı Ceyhan The Relationship Between Vitamin D Level and Lung Function, Severity and Clinical Indices, Depression and Anxiety Symptoms in Adult Patients With Non-Cystic Fibrosis Bronchiectasis ATS Conference 2016 - San Francisco , California 2016

Education

Doctor of Medicine (M.D.) degree from Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 2022

Certifications

Certification of Anti-aging and Regenerative Medicine from The American Board of Antiaging and Regenerative Medicine (ABAARM)

Certification of Nutritional Wellness from The American

Naturopathic Certification Board (ANCB)

Clinical Focus

General disease diagnosis and treatment, as well as wellness care

Languages spoken: Thai and English