Eating Behavior, Nutritional Status and Appetite Hormones After Bariatric Surgery (BCKYL-YDB)
2 de junio de 2026 actualizado por: Özlem ÖZPAK AKKUŞ
Evaluation of Changes in Postoperative Eating Behavior Attitudes, Nutritional Status, and Some Hormonal Parameters Regulating Appetite in Surgical Weight Management
This study aims to evaluate changes in eating behavior attitudes, nutritional status, and appetite-regulating hormonal parameters in individuals who have undergone Laparoscopic Sleeve Gastrectomy (LSG).
The study will be conducted at Bursa Yıldırım Doruk Hospital, Department of General Surgery.
A total of 40 volunteer participants who underwent LSG within the last month will be included.
Participants will be assessed at baseline (shortly after surgery) and at 6-month follow-up.
Assessments will include anthropometric measurements (body weight, height, waist and hip circumference, BMI, waist-to-hip ratio), 3-day dietary intake records analyzed using BeBIS 8.2 software, and the Adult Eating Behavior Scale.
Biochemical parameters including fasting blood glucose, total cholesterol, triglycerides, HDL, LDL, VLDL cholesterol, and insulin will be obtained from patient files and analyzed using Advia Chemistry 2400 and Advia XPT devices.
Additionally, appetite-regulating hormones (ghrelin, GLP-1, PYY) will be analyzed from residual blood samples using the ELISA method with RelAssay Diagnostics kits by Teknogen Bioengineering Laboratory.
All data will be compared between baseline and 6-month follow-up to evaluate the impact of bariatric surgery on nutritional and hormonal outcomes.
Descripción general del estudio
Estado
Aún no reclutando
Condiciones
Intervención / Tratamiento
Descripción detallada
This observational study will be conducted at Bursa Yıldırım Doruk Hospital, General Surgery Clinic, under the supervision of Assoc. Prof. Dogukan Durak. Forty volunteer participants who underwent Laparoscopic Sleeve Gastrectomy (LSG) within the last month and meet the inclusion and exclusion criteria will be enrolled after signing an informed consent form.
Assessments will be performed at two time points: at baseline (shortly after surgery) and at 6-month follow-up.
Anthropometric Measurements: Body weight, height, waist and hip circumference will be measured. BMI and waist-to-hip ratio will be calculated accordingly. Waist circumference will be evaluated according to WHO criteria.
Dietary Assessment: A 3-day dietary intake record will be collected from each participant at both time points. Food portion sizes will be estimated using the "Food and Nutrient Photo Catalog." Energy and macronutrient intake will be analyzed using BeBIS 8.2 software and evaluated according to the Turkish Dietary Guidelines 2022 (TUBER 2022).
Eating Behavior Assessment: The Adult Eating Behavior Scale (developed by Celik et al.) will be administered at both time points. The scale consists of 18 items and 5 subscales, scored between 0-100. Higher scores indicate more positive attitudes toward eating behavior.
Biochemical and Hormonal Parameters: After 12-hour fasting, the following biochemical parameters will be obtained from patient files: fasting blood glucose (FBG), total cholesterol (TC), triglycerides (TG), high-density lipoprotein (HDL) cholesterol, low-density lipoprotein (LDL) cholesterol, very low-density lipoprotein (VLDL) cholesterol, and insulin. Routine biochemical parameters and lipid profile will be analyzed spectrophotometrically using the Advia Chemistry 2400 device, while insulin will be measured by chemiluminescence using the Advia XPT device. Additionally, appetite-regulating hormones including ghrelin, glucagon-like peptide-1 (GLP-1), and peptide YY (PYY) will be analyzed from residual blood samples stored at -20°C by Teknogen Bioengineering Laboratory using the ELISA method with an automated microplate reader (Biotek TS800) and RelAssay Diagnostics commercial kits (Ankara, Turkey).
All data will be compared between baseline and 6-month follow-up using appropriate statistical methods.
Tipo de estudio
De observación
Inscripción (Estimado)
40
Contactos y Ubicaciones
Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.
Estudio Contacto
- Nombre: Özlem ÖZPAK AKKUŞ, Assoc. Prof.
- Número de teléfono: +903246253300
- Correo electrónico: dytozlemozpak@hotmail.com
Copia de seguridad de contactos de estudio
- Nombre: Doğukan DURAK, Assoc. Prof.
- Número de teléfono: +905327243733
- Correo electrónico: dogukandurak404@hotmail.com
Ubicaciones de estudio
-
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Bursa
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Bursa, Bursa, Turquía (Türkiye), 16130
- Bursa Yıldırım Doruk Hastanesi, General Surgery Clinic
-
Contacto:
- Özlem ÖZPAK AKKUŞ, Assoc. Prof.
- Número de teléfono: +903246253300
- Correo electrónico: dytozlemozpak@hotmail.com
-
Contacto:
- Doğukan DURAK, Assoc. Prof.
- Número de teléfono: +905327243733
- Correo electrónico: dogukandurak404@hotmail.com
-
Investigador principal:
- Özlem ÖZPAK AKKUŞ, Assoc. Prof.
-
Sub-Investigador:
- Doğukan Durak, Assoc. Prof.
-
Sub-Investigador:
- Seher ŞEN, Asst. Prof.
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Sub-Investigador:
- Tuğçe Nur DOĞANAY YILDIRIM, MSc, RD
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Criterios de participación
Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.
Criterio de elegibilidad
Edades elegibles para estudiar
- Adulto
Acepta Voluntarios Saludables
No
Método de muestreo
Muestra no probabilística
Población de estudio
Adult patients who underwent Laparoscopic Sleeve Gastrectomy (LSG) within the last month at Bursa Yıldırım Doruk Hospital, General Surgery Clinic, under the supervision of Assoc.
Prof. Dogukan Durak, and who meet the inclusion and exclusion criteria.
Descripción
Inclusion Criteria:
- Having undergone Laparoscopic Sleeve Gastrectomy (LSG) within the last month
- Aged between 18-50 years
- Signing the informed consent form
- Having a Body Mass Index (BMI) of 40 kg/m2 or between 35-40 kg/m2 with obesity-related comorbidities
- No diagnosis of depression
- No eating behavior disorder
- No psychiatric disorder
Exclusion Criteria:
- Not having undergone Laparoscopic Sleeve Gastrectomy (LSG) or not planning to undergo bariatric surgery
- Not being in the age range of 18-50 years
- Not signing the informed consent form
- Having a Body Mass Index (BMI) greater than 40 kg/m2 or less than 35 kg/m2 without obesity-related comorbidities
- Having a diagnosis of depression
- Having an eating behavior disorder
- Having a psychiatric disorder
Plan de estudios
Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.
¿Cómo está diseñado el estudio?
Detalles de diseño
Cohortes e Intervenciones
Grupo / Cohorte |
Intervención / Tratamiento |
|---|---|
|
LSG Patients
Individuals who underwent Laparoscopic Sleeve Gastrectomy (LSG) within the last month at Bursa Yıldırım Doruk Hospital, General Surgery Clinic, and meet the inclusion and exclusion criteria.
Participants will be assessed at baseline (shortly after surgery) and at 6-month follow-up.
|
Anthropometric measurements (body weight, height, waist and hip circumference, BMI, waist-to-hip ratio), 3-day dietary intake records, Adult Eating Behavior Scale, and biochemical and hormonal parameters (fasting blood glucose, lipid profile, insulin, ghrelin, GLP-1, PYY) will be assessed at baseline and at 6-month follow-up.
Otros nombres:
|
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Change in Serum Ghrelin Concentration (pg/mL)
Periodo de tiempo: Baseline and 6 months after surgery
|
Change in serum ghrelin levels between baseline and 6-month follow-up, assessed by ELISA method.
|
Baseline and 6 months after surgery
|
|
Change in Serum GLP-1 Concentration (pmol/L)
Periodo de tiempo: Baseline and 6 months after surgery
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Change in serum glucagon-like peptide-1 (GLP-1) levels between baseline and 6-month follow-up, assessed by ELISA method.
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Baseline and 6 months after surgery
|
|
Change in Serum PYY Concentration (pg/mL)
Periodo de tiempo: Baseline and 6 months after surgery
|
Change in serum peptide YY (PYY) levels between baseline and 6-month follow-up, assessed by ELISA method.
|
Baseline and 6 months after surgery
|
|
Change in Adult Eating Behavior Scale Total Score (0-100)
Periodo de tiempo: Baseline and 6 months after surgery
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Change in Adult Eating Behavior Scale total score between baseline and 6-month follow-up.
Scale is scored between 0-100; higher scores indicate more positive eating behavior attitudes.
|
Baseline and 6 months after surgery
|
|
Change in Daily Energy Intake (kcal/day)
Periodo de tiempo: Baseline and 6 months after surgery
|
Change in daily energy intake assessed by 3-day dietary intake records at baseline and 6-month follow-up.
Food portions will be estimated using the Food and Nutrient Photo Catalog.
Data will be analyzed using BeBIS 8.2 software and evaluated according to Turkish Dietary Guidelines 2022.
|
Baseline and 6 months after surgery
|
|
Change in Daily Protein Intake (g/day)
Periodo de tiempo: Baseline and 6 months after surgery
|
Change in daily protein intake assessed by 3-day dietary intake records at baseline and 6-month follow-up.
Food portions will be estimated using the Food and Nutrient Photo Catalog.
Data will be analyzed using BeBIS 8.2 software and evaluated according to Turkish Dietary Guidelines 2022
|
Baseline and 6 months after surgery
|
|
Change in Daily Carbohydrate Intake (g/day)
Periodo de tiempo: Baseline and 6 months after surgery
|
Change in daily carbohydrate intake assessed by 3-day dietary intake records at baseline and 6-month follow-up.
Food portions will be estimated using the Food and Nutrient Photo Catalog.
Data will be analyzed using BeBIS 8.2 software and evaluated according to Turkish Dietary Guidelines 2022.
|
Baseline and 6 months after surgery
|
|
Change in Daily Fat Intake (g/day)
Periodo de tiempo: Baseline and 6 months after surgery
|
Change in daily fat intake assessed by 3-day dietary intake records at baseline and 6-month follow-up.
Food portions will be estimated using the Food and Nutrient Photo Catalog.
Data will be analyzed using BeBIS 8.2 software and evaluated according to Turkish Dietary Guidelines 2022.
|
Baseline and 6 months after surgery
|
Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Change in Body Weight (kg)
Periodo de tiempo: Baseline and 6 months after surgery
|
Change in body weight between baseline and 6-month follow-up.
|
Baseline and 6 months after surgery
|
|
Change in Body Mass Index (kg/m²)
Periodo de tiempo: Baseline and 6 months after surgery
|
Change in BMI between baseline and 6-month follow-up.
Weight and height will be combined to report BMI in kg/m².
|
Baseline and 6 months after surgery
|
|
Change in Waist Circumference (cm)
Periodo de tiempo: Baseline and 6 months after surgery
|
Change in waist circumference between baseline and 6-month follow-up.
|
Baseline and 6 months after surgery
|
|
Change in Hip Circumference (cm)
Periodo de tiempo: Baseline and 6 months after surgery
|
Change in hip circumference between baseline and 6-month follow-up.
|
Baseline and 6 months after surgery
|
|
Change in Waist-to-Hip Ratio
Periodo de tiempo: Baseline and 6 months after surgery
|
Change in waist-to-hip ratio between baseline and 6-month follow-up.
Waist and hip circumference measurements will be combined to calculate the waist-to-hip ratio.
|
Baseline and 6 months after surgery
|
|
Change in Fasting Blood Glucose Concentration (mg/dL)
Periodo de tiempo: Baseline and 6 months after surgery
|
Change in fasting blood glucose levels between baseline and 6-month follow-up.
|
Baseline and 6 months after surgery
|
|
Change in Total Cholesterol Concentration (mg/dL)
Periodo de tiempo: Baseline and 6 months after surgery
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Change in total cholesterol levels between baseline and 6-month follow-up.
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Baseline and 6 months after surgery
|
|
Change in Triglyceride Concentration (mg/dL)
Periodo de tiempo: Baseline and 6 months after surgery
|
Change in triglyceride levels between baseline and 6-month follow-up.
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Baseline and 6 months after surgery
|
|
Change in HDL Cholesterol Concentration (mg/dL)
Periodo de tiempo: Baseline and 6 months after surgery
|
Change in high-density lipoprotein (HDL) cholesterol levels between baseline and 6-month follow-up.
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Baseline and 6 months after surgery
|
|
Change in LDL Cholesterol Concentration (mg/dL)
Periodo de tiempo: Baseline and 6 months after surgery
|
Change in low-density lipoprotein (LDL) cholesterol levels between baseline and 6-month follow-up.
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Baseline and 6 months after surgery
|
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Change in VLDL Cholesterol Concentration (mg/dL)
Periodo de tiempo: Baseline and 6 months after surgery
|
Change in very low-density lipoprotein (VLDL) cholesterol levels between baseline and 6-month follow-up.
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Baseline and 6 months after surgery
|
|
Change in Fasting Insulin Concentration (µIU/mL)
Periodo de tiempo: Baseline and 6 months after surgery
|
Change in fasting insulin levels between baseline and 6-month follow-up.
|
Baseline and 6 months after surgery
|
Colaboradores e Investigadores
Aquí es donde encontrará personas y organizaciones involucradas en este estudio.
Patrocinador
Investigadores
- Investigador principal: Özlem ÖZPAK AKKUŞ, Assoc. Prof., Toros University
Publicaciones y enlaces útiles
La persona responsable de ingresar información sobre el estudio proporciona voluntariamente estas publicaciones. Estos pueden ser sobre cualquier cosa relacionada con el estudio.
Publicaciones Generales
- Physical status: the use and interpretation of anthropometry. Report of a WHO Expert Committee. World Health Organ Tech Rep Ser. 1995;854:1-452.
- Sherf Dagan S, Goldenshluger A, Globus I, Schweiger C, Kessler Y, Kowen Sandbank G, Ben-Porat T, Sinai T. Nutritional Recommendations for Adult Bariatric Surgery Patients: Clinical Practice. Adv Nutr. 2017 Mar 15;8(2):382-394. doi: 10.3945/an.116.014258. Print 2017 Mar.
- Celik E, Karabulut E, Bilgic P. Bariatrik Cerrahi Hastalarinda Beslenme ve Davranis Tutumu Olcegi. Bes Diy Derg. 2017;45(2):107-15.
- Pekcan G, Sanlier N, Bas M, Acar Tek N, Gokmen Ozel H. Turkiye Beslenme Rehberi (TUBER) 2022. Ankara: Hazar Reklamcilik; 2022.
- Beslenme Bilgi Sistemleri Paket Programi (BeBIS 8.2). Istanbul: Software NDB; 2015.
- Merdol TK. Toplu Beslenme Yapilan Kurumlar icin Standard Yemek Tarifleri. Hatipoglu Yayinlari; 2003.
- Rakicioglu N, Tek NA, Ayaz A, Pekcan G. Yemek ve Besin Fotograf Katalogu Olcu ve Miktarlar. Nadir Kitap; 2012.
- Pekcan G. Beslenme Durumunun Saptanmasi. Diyet El Kitabi. Ankara: Hatipoglu Yayinevi; 2013:67-142.
- Baltaci G. Obezite ve egzersiz. Saglik Bakanligi Yayinlari, Ankara; 2008.
- World Health Organization. Prevention and management of the global epidemic of obesity. Report of the WHO Consultation on Obesity. Geneva: WHO; 1997.
- Rigamonti AE, Bini S, Rocco MC, Giardini V, Massimini D, Crippa MG, Saluzzi A, Casati M, Marazzi N, Perotti M, Cimino V, Grassi G, Sartorio A, Pincelli AI. Post-prandial anorexigenic gut peptide, appetite and glucometabolic responses at different eating rates in obese patients undergoing laparoscopic sleeve gastrectomy. Endocrine. 2017 Jan;55(1):113-123. doi: 10.1007/s12020-016-0933-6. Epub 2016 Mar 29.
- Devlin MJ, Goldfein JA, Flancbaum L, Bessler M, Eisenstadt R. Surgical management of obese patients with eating disorders: a survey of current practice. Obes Surg. 2004 Oct;14(9):1252-7. doi: 10.1381/0960892042386940.
- Brown W, Dixon JB, Brien PO. Management of obesity--the role of surgery. Aust Fam Physician. 2006 Aug;35(8):584-6.
- Katsanos CS, Madura JA 2nd, Roust LR. Essential amino acid ingestion as an efficient nutritional strategy for the preservation of muscle mass following gastric bypass surgery. Nutrition. 2016 Jan;32(1):9-13. doi: 10.1016/j.nut.2015.07.005. Epub 2015 Aug 5.
Fechas de registro del estudio
Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.
Fechas importantes del estudio
Inicio del estudio (Estimado)
1 de julio de 2026
Finalización primaria (Estimado)
1 de enero de 2027
Finalización del estudio (Estimado)
1 de febrero de 2027
Fechas de registro del estudio
Enviado por primera vez
20 de mayo de 2026
Primero enviado que cumplió con los criterios de control de calidad
2 de junio de 2026
Publicado por primera vez (Actual)
9 de junio de 2026
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
9 de junio de 2026
Última actualización enviada que cumplió con los criterios de control de calidad
2 de junio de 2026
Última verificación
1 de junio de 2026
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
- Trastornos Nutricionales
- Sobrenutrición
- Peso corporal
- Cambios en el peso corporal
- Exceso de peso
- Condiciones Patológicas, Signos y Síntomas
- Comportamiento
- Enfermedades Nutricionales y Metabólicas
- Signos y síntomas
- Comportamiento, animal
- Obesidad
- Pérdida de peso
- Comportamiento de alimentación
- Calidad, acceso y evaluación de la atención médica
- Técnicas de investigación
- Métodos epidemiológicos
- Recopilación de datos
- Mecanismos de evaluación de atención médica
- Calidad de la atención médica
- Salud pública
- Medio ambiente y salud pública
- Mediciones epidemiológicas
- Evaluación nutricional
Otros números de identificación del estudio
- BCKLY-YDB-2026
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
NO
Descripción del plan IPD
Individual participant data will not be shared due to patient privacy and confidentiality concerns in accordance with Turkish Personal Data Protection Law (KVKK).
Aggregate study results will be made available through peer-reviewed publication.
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
No
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
No
Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .