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Gut Hormones and Nutritional Status After a Standardized Meal. (GUT-NUT)

28 maggio 2026 aggiornato da: Medical University of Bialystok

Analysis of Differences in Serum Concentrations of Selected Gut Hormones in Patients With Varying Nutritional Status Following Consumption of a Standardized Meal.

This study evaluated differences in serum concentrations of selected gut hormones (GLP-1, GIP, cholecystokinin, and omentin) among individuals with varying nutritional status following a standardized meal.

A total of 80 adults were enrolled and stratified by BMI. Fasting and postprandial hormone levels were assessed at multiple time points.

Additionally, dietary habits, physical activity, body composition, and resting energy expenditure were evaluated to explore their association with hormonal responses.

Panoramica dello studio

Stato

Completato

Condizioni

Intervento / Trattamento

Descrizione dettagliata

Stage I

  1. Participant recruitment

    A total of 80 participants (women and men) aged 40-60 years who voluntarily consent to participate in the study will be enrolled:

    Control group (G0): 20 participants (10 women, 10 men) with normal body weight - BMI 18.5-24.9 kg/m² Study group I (G1): 20 participants (10 women, 10 men) with overweight - BMI 25.0-29.9 kg/m² Study group II (G2): 20 participants (10 women, 10 men) with class I obesity - BMI 30.0-34.9 kg/m² Study group III (G3): 20 participants (10 women, 10 men) with class II obesity - BMI 35.0-39.9 kg/m²

  2. Assessment of dietary habits, physical activity, and quality of life

    Participants will complete a questionnaire-based survey consisting of the following standardized instruments:

    • Questionnaire for the Assessment of Dietary Habits and Opinions on Food and Nutrition (QEB Questionnaire developed by the Committee of Human Nutrition Science, Polish Academy of Sciences);
    • International Physical Activity Questionnaire (IPAQ);
    • Quality of Life Questionnaire (WHOQOL-BREF);
    • The Three-Factor Eating Questionnaire (TFEQ-R18);
    • "My Eating Habits: Construction and Psychometric Properties" Questionnaire (N. Ogińska-Bulik, L. Putyński);
    • The Hunger-Satiety Scale. The questionnaire survey will enable qualitative assessment of participants' dietary habits, physical activity levels, quality of life, and emotional determinants related to food intake.

    Quantitative assessment of dietary intake will be performed using a 24-hour dietary recall collected over three days (two weekdays and one weekend day).

  3. Nutritional Status Assessment Anthropometric measurements including body height and body weight will be obtained using a calibrated scale with a stadiometer. Waist circumference (cm) will be measured midway between the lower rib margin and the iliac crest, while hip circumference (cm) will be measured at the point of maximum gluteal protuberance. Based on these measurements, the following indices will be calculated: BMI, WHR, WHtR, and RFM.

Body composition analysis will also be performed using dual-energy X-ray absorptiometry (DEXA), which utilizes dual-energy X-ray beams. This technique allows assessment of the whole body and individual body segments by dividing body composition into three main compartments: bone mineral content, lean body mass (excluding bone mineral content), and fat mass.

DEXA is considered a valuable tool for body composition assessment in clinical studies, particularly among individuals with overweight and obesity, as it enables more accurate evaluation of body composition and long-term cardiovascular and oncological risk associated with excess body weight.

The method is safe, rapid, and non-invasive due to the very low radiation dose. Radiation exposure during the examination is approximately 0.001 mSv. The examination is performed in the supine position.

Stage II

  1. Biochemical analyses: assessment of serum GLP-1, GIP, cholecystokinin, and omentin concentrations in the fasting state and following administration of a standardized meal. Blood samples (10 mL) will be collected for the following laboratory tests: complete blood count (CBC), fasting glucose, fasting insulin, lipid profile (total cholesterol, triglycerides [TG], low-density lipoprotein [LDL], and high-density lipoprotein [HDL]), C-reactive protein (CRP), serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST), serum uric acid, serum creatinine. Additionally, fasting blood samples (10 mL) will be collected to determine serum concentrations of GLP-1, GIP, cholecystokinin, and omentin.
  2. Subsequently, participants will receive a standardized normocarbohydrate meal, and additional blood samples (10 mL each) will be collected at 60, 120, 180, and 240 minutes after meal consumption, individually on the same weekday, in order to assess serum concentrations of GLP-1, GIP, cholecystokinin, and omentin at specified time intervals following standardized meal administration. An isocaloric standardized meal (Nutricia, Poland) will be used in the study, consisting of one and half bottle per participant:

Normocarbohydrate formulation (Nutridrink Standard) Composition of the Standardized Meal - Nutridrink Standard Parameter Per 100 mL Energy 240 kcal Carbohydrates 29.6 g

  • of energy 49% Sugars 15.5 g Lactose <0.5 g Fat 9.3 g
  • of energy 35% Saturated fatty acids 0.86 g Protein 9.6 g
  • of energy 16% Dietary fiber 0 g

Stage III

1. Assessment of Resting Metabolic Rate Indirect calorimetry will be performed to accurately measure resting energy expenditure (REE) and determine the energy substrates utilized by the body (carbohydrates and fats).

The examination involves analysis of exhaled air composition (oxygen and carbon dioxide concentrations) using specialized equipment (Q-NRG+, COSMED). Measurements will be conducted using sterile disposable mouthpieces and an oxygen mask. Indirect calorimetry is completely safe, painless, and non-invasive. The examination will be performed once.

The obtained results will be subjected to statistical analysis using Statistica 13.3 software (StatSoft Inc.).

Tipo di studio

Interventistico

Iscrizione (Effettivo)

80

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

      • Bialystok, Polonia, 15-089
        • Medical University of Bialystok

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Adulto

Accetta volontari sani

Sì

Descrizione

Inclusion Criteria:

  • women and men aged 40-60

Exclusion criteria:

  • disorders of carbohydrate metabolism,
  • endocrine disorders,
  • renal and/or hepatic insufficiency,
  • gastrointestinal diseases,
  • history of gastroenterological or bariatric surgery,
  • pharmacological treatment or use of other agents with known or unknown effects on metabolic and hormonal processes,
  • other diseases potentially affecting the obtained results,
  • pregnancy and lactation.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Altro
  • Assegnazione: Non randomizzato
  • Modello interventistico: Assegnazione incrociata
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: Normal Body Weight Group
Participants with normal body weight (BMI: 19-24.9 kg/m2)
Participants received 187.5 mL of a ready-to-drink oral nutritional supplement (Nutridrink Protein).
Sperimentale: Overweight Group
Participants with overweight (BMI: 25-29.9 kg/m2)
Participants received 187.5 mL of a ready-to-drink oral nutritional supplement (Nutridrink Protein).
Sperimentale: Obesity I Group
Participants with class I obesity (BMI: 30-34.9 kg/m2)
Participants received 187.5 mL of a ready-to-drink oral nutritional supplement (Nutridrink Protein).
Sperimentale: Obesity II Group
Participants with class II and class III obesity (BMI > 35 kg/m²)
Participants received 187.5 mL of a ready-to-drink oral nutritional supplement (Nutridrink Protein).

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Postprandial hormonal response: GLP-1
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Postprandial changes in serum glucagon-like peptide-1 (GLP-1) (pmol/L).
24 months (analyzes were performed throughout the study period).
Postprandial hormonal response: GIP.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Postprandial changes in serum glucose-dependent insulinotropic polypeptide (GIP) (pg/mL).
24 months (analyzes were performed throughout the study period).
Postprandial hormonal response: cholecystokinin.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Postprandial changes in serum cholecystokinin (pg/mL).
24 months (analyzes were performed throughout the study period).
Postprandial hormonal response: omentin.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Postprandial changes in serum omentin (ng/mL).
24 months (analyzes were performed throughout the study period).

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Laboratory parameters: hemoglobin.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Complete blood count assessed from fasting venous blood samples, including hemoglobin (g/dl).
24 months (analyzes were performed throughout the study period).
Laboratory parameters: glucose.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Laboratory parameters assessed from fasting blood samples. Fasting glucose concentration (mg/dL)
24 months (analyzes were performed throughout the study period).
Laboratory parameters: insulin.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Laboratory parameters assessed from fasting blood samples. Fasting insulin concentration (µIU/mL)
24 months (analyzes were performed throughout the study period).
Laboratory parameters: total cholesterol.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Laboratory parameters assessed from fasting blood samples. Lipid profile parameters: total cholesterol (mg/dL).
24 months (analyzes were performed throughout the study period).
Laboratory parameters: C-reactive protein concentration.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Laboratory parameters assessed from fasting blood samples. C-reactive protein concentration (mg/L)
24 months (analyzes were performed throughout the study period).
Laboratory parameters: ALT.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Laboratory parameters assessed from fasting blood samples. Alanine aminotransferase activity (U/L).
24 months (analyzes were performed throughout the study period).
Laboratory parameters: AST.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Laboratory parameters assessed from fasting blood samples. Aspartate aminotransferase activity (U/L).
24 months (analyzes were performed throughout the study period).
Laboratory parameters: creatinine.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Laboratory parameters assessed from fasting blood samples. Creatinine concentration (mg/dL).
24 months (analyzes were performed throughout the study period).
Laboratory parameters: uric acid.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Laboratory parameters assessed from fasting blood samples. Uric acid concentration (mg/dL).
24 months (analyzes were performed throughout the study period).
Laboratory parameters: HDL cholesterol.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Laboratory parameters assessed from fasting blood samples. Lipid profile parameters: HDL cholesterol.
24 months (analyzes were performed throughout the study period).
Laboratory parameters: TG.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Laboratory parameters assessed from fasting blood samples. Lipid profile parameters: triglycerides (mg/dL).
24 months (analyzes were performed throughout the study period).
Laboratory parameters: LDL cholesterol.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Laboratory parameters assessed from fasting blood samples. Lipid profile parameters: LDL cholesterol (mg/dl).
24 months (analyzes were performed throughout the study period).
Body composition parameters assessed by dual-energy X-ray absorptiometry (DXA) - total fat mass.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Assessment of total fat mass (kg).
24 months (analyzes were performed throughout the study period).
Body composition parameters assessed by dual-energy X-ray absorptiometry (DXA) - visceral adipose tissue.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Assessment of visceral adipose tissue (cm³).
24 months (analyzes were performed throughout the study period).
Body composition parameters assessed by dual-energy X-ray absorptiometry (DXA) - lean body mass.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Assessment of lean body mass (kg).
24 months (analyzes were performed throughout the study period).
Physical activity
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Differences in physical activity levels between participants with normal body weight (BMI 18.5-24.9 kg/m²), overweight (BMI 25.0-29.9 kg/m²), obesity I (BMI 30.0-34.9 kg/m²) and obesity II (≥35 kg/m²) assessed using the IPAQ questionnaire.
24 months (analyzes were performed throughout the study period).
Resting Energy Expenditure
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Resting Energy Expenditure: REE was measured using indirect calorimetry (Q-NRG+, COSMED).
24 months (analyzes were performed throughout the study period).
Dietary habits
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Differences in dietary habits between participants with normal body weight (BMI 18.5-24.9 kg/m²), overweight (BMI 25.0-29.9 kg/m²), obesity I (BMI ≥30.0-34.9 kg/m²) and obesity II (BMI ≥35.0 kg/m²), assessed using standardized questionnaires including the QEB, TFEQ-R18, and the hunger-satiety scale.
24 months (analyzes were performed throughout the study period).
Quality of life of people with normal and excessive body weight.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Quality of life assessed using the World Health Organization Quality of Life questionnaire (WHOQOL-BREF).
24 months (analyzes were performed throughout the study period).
Laboratory parameters: hematocrit.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Complete blood count assessed from fasting venous blood samples, including hematocrit (%).
24 months (analyzes were performed throughout the study period).
Laboratory parameters: white blood cell count.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Complete blood count assessed from fasting venous blood samples, including white blood cell count ×10^3/µL.
24 months (analyzes were performed throughout the study period).
Laboratory parameters: red blood cell count.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Complete blood count assessed from fasting venous blood samples, including red blood cell count ×10^6/µL.
24 months (analyzes were performed throughout the study period).
Laboratory parameters: platelet count.
Lasso di tempo: 24 months (analyzes were performed throughout the study period).
Complete blood count assessed from fasting venous blood samples, including platelet count ×10^3/µL.
24 months (analyzes were performed throughout the study period).

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Investigatori

  • Investigatore principale: Lucyna Ostrowska, Professor, Department of Dietetics and Clinical Nutrition Medical University of Bialystok

Pubblicazioni e link utili

La persona responsabile dell'inserimento delle informazioni sullo studio fornisce volontariamente queste pubblicazioni. Questi possono riguardare qualsiasi cosa relativa allo studio.

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

8 aprile 2025

Completamento primario (Effettivo)

14 aprile 2026

Completamento dello studio (Effettivo)

14 aprile 2026

Date di iscrizione allo studio

Primo inviato

12 maggio 2026

Primo inviato che soddisfa i criteri di controllo qualità

28 maggio 2026

Primo Inserito (Effettivo)

4 giugno 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

4 giugno 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

28 maggio 2026

Ultimo verificato

1 maggio 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • B.SUB.24.251
  • ADN.614.2.2024 (Altro identificatore: Medical University of Bialystok)

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

INDECISO

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .