Ghrelin and Nutritional Status After a Standardized Meal.
tiistai 2. kesäkuuta 2026 päivittänyt: Medical University of Bialystok
Analysis of Ghrelin Concentration in the Blood Serum of Patients With Different Nutritional Status Following Consumption of a Standarized Meal.
This study evaluated differences in serum concentrations of ghrelin among individuals with varying nutritional status following a standardized meal.
A total of 80 adults were enrolled and stratified by BMI. Fasting and postprandial ghrelin 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.
Tutkimuksen yleiskatsaus
Yksityiskohtainen kuvaus
Study Objectives
1. The primary objectives was to evaluate differences in serum concentrations of ghrelin among patients with varying nutritional status following consumption of standarized meal (cross-over design).
Secondary Objectives
- To compare fasting serum concentrations of ghrelin across nutritional status groups.
- To assess postprandial changes (60, 120, 1880, and 240 minutes) in ghrelin depending on nutritional status.
- To compare fasting versus postpradial ghrelin levels. Methods
Study Population: A total of 80 adults (aged 40-60 years) were enrolled and stratified by BMI into the following groups:
Normal weight (BMI 18.5-24.9) Overweight (BMI 25.0-29.9) Obesity class I (BMI 30.0-34.9) Obesity class II and III (BMI ≥ 35.0) Exclusion criteria included: carbohydrate metabolism disorders, endocrine disorders, renal and/or hepatic failure, gastrointestinal diseases, history of gastroenterological and bariatric surgery, pharmacological treatment or other preparations whose effect on metabolic and hormonal changes is documented or unknown, pregnancy, lactation and other diseases that may affect the obtained results.
Dietary Intake, Physical Activity, and Quality of Life:
Validated questionnaires (including QEB, IPAQ, WHOQOL-BREF, AND TFEQ-R18) were used. Dietary intake was assessed using 24-hour dietary recalls collected over 3 days (2 weekdays and 1 weekend day).
Nutritional Status Assessment: Anthropometric measurements (body weight, height, waist and hip circumference) were obtained, and BMI, WHR, WHtR, and RFM were calculated. Body composition was assessed using dual-energy X-ray absorptiometry (DEXA).
Biochemical Measurements: Fasting blood samples were collected to assess: glucose, insulin, lipid profile, CRP, ALT, AST, uric acid, creatinine, and ghrelin. After ingestion of a standarized isocaloric meal (Nutridrink Standard), additional blood samples were collected at 60, 120, 180, and 240 minutes.
Resting energy Expenditure: REE was measured using indirect calorimetry (Q-NRG+, COSMED).
Statistical Analysis: Data were analyzed using Statistica 13.3 (StatSoft).
Opintotyyppi
Interventio
Ilmoittautuminen (Todellinen)
80
Vaihe
- Ei sovellettavissa
Yhteystiedot ja paikat
Tässä osiossa on tutkimuksen suorittajien yhteystiedot ja tiedot siitä, missä tämä tutkimus suoritetaan.
Opiskelupaikat
-
-
Poland
-
Bialystok, Poland, Puola, 15-089
- Medical University of Bialystok
-
-
Osallistumiskriteerit
Tutkijat etsivät ihmisiä, jotka sopivat tiettyyn kuvaukseen, jota kutsutaan kelpoisuuskriteereiksi. Joitakin esimerkkejä näistä kriteereistä ovat henkilön yleinen terveydentila tai aiemmat hoidot.
Kelpoisuusvaatimukset
Opintokelpoiset iät
- Aikuinen
Hyväksyy terveitä vapaaehtoisia
Joo
Kuvaus
Inclusion Criteria:
- women and men aged 40-60
Exclusion Criteria:
- type I and II diabetes,
- exacerbated coronary artery disease,
- endocrine disorders,
- pregnancy and lactation period,
- use of hormonal contraception or hormone replacement therapy, steroid therapy, antiretroviral therapy,
- surgical or pharmacological history obesity treatment,
- pacemaker
Opintosuunnitelma
Tässä osiossa on tietoja tutkimussuunnitelmasta, mukaan lukien kuinka tutkimus on suunniteltu ja mitä tutkimuksella mitataan.
Miten tutkimus on suunniteltu?
Suunnittelun yksityiskohdat
- Ensisijainen käyttötarkoitus: Muut
- Jako: Ei satunnaistettu
- Inventiomalli: Crossover-tehtävä
- Naamiointi: Ei mitään (avoin tarra)
Aseet ja interventiot
Osallistujaryhmä / Arm |
Interventio / Hoito |
|---|---|
|
Kokeellinen: Normal Body Weight Group
Participants with normal body weight (BMI: 19-24.9
kg/m2)
|
Participants consumed 187.5 mL of the oral nutritional supplement Nutridrink Protein during the study procedure.
|
|
Kokeellinen: Overweight Group
Participants with overweight (BMI: 25-29.9
kg/m2)
|
Participants consumed 187.5 mL of the oral nutritional supplement Nutridrink Protein during the study procedure.
|
|
Kokeellinen: Obesity I Group
Participants with class I obesity (BMI: 30-34.9
kg/m2)
|
Participants consumed 187.5 mL of the oral nutritional supplement Nutridrink Protein during the study procedure.
|
|
Kokeellinen: Obesity II Group
Participants with class II and class III obesity (BMI > 35 kg/m2)
|
Participants consumed 187.5 mL of the oral nutritional supplement Nutridrink Protein during the study procedure.
|
Mitä tutkimuksessa mitataan?
Ensisijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
|
Postprandial serum ghrelin concentration
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
Change in serum ghrelin concentration (pg/mL) over 4 hours following standardized meal intake in participants with different nutritional status.
Measurements will be assessed at predefined time points postprandially.
|
24 months (analyzes were performed throughout the study period).
|
Toissijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
|
Hemoglobin concentration
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
Hemoglobin level (g/dL) measured in fasting blood samples.
|
24 months (analyzes were performed throughout the study period).
|
|
White blood cell count
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
WBC count (×10⁹/μL) measured in fasting blood samples.
|
24 months (analyzes were performed throughout the study period).
|
|
Platelet count
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
Platelet count (×10⁹/μL) measured in fasting blood samples.
|
24 months (analyzes were performed throughout the study period).
|
|
Fasting glucose concentration
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
Glucose level (mg/dL) measured in fasting blood samples.
|
24 months (analyzes were performed throughout the study period).
|
|
Fasting insulin concentration
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
Insulin level (µIU/mL) measured in fasting blood samples.
|
24 months (analyzes were performed throughout the study period).
|
|
Total cholesterol concentration
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
Total cholesterol (mg/dl) measured in fasting blood samples.
|
24 months (analyzes were performed throughout the study period).
|
|
C-reactive protein concentration
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
CRP level (mg/L) measured in fasting blood samples.
|
24 months (analyzes were performed throughout the study period).
|
|
Alanine aminotransferase activity
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
ALT level (U/L) measured in serum.
|
24 months (analyzes were performed throughout the study period).
|
|
Aspartate aminotransferase activity
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
AST level (U/L) measured in serum.
|
24 months (analyzes were performed throughout the study period).
|
|
Serum uric acid concentration
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
Uric acid level (mg/dL).
|
24 months (analyzes were performed throughout the study period).
|
|
Serum creatinine concentration
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
Creatinine level (μmol/l).
|
24 months (analyzes were performed throughout the study period).
|
|
Total fat mass measured by DEXA
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
Total fat mass (kg) assessed using dual-energy X-ray absorptiometry (DEXA).
|
24 months (analyzes were performed throughout the study period).
|
|
Body fat percentage measured by DEXA
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
Total body fat percentage (%) assessed using dual-energy X-ray absorptiometry (DEXA).
|
24 months (analyzes were performed throughout the study period).
|
|
Lean body mass measured by DEXA
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
Lean body mass (kg) assessed using dual-energy X-ray absorptiometry (DEXA).
|
24 months (analyzes were performed throughout the study period).
|
|
Visceral adipose tissue measured by DEXA
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
Visceral adipose tissue mass (cm³) assessed using dual-energy X-ray absorptiometry (DEXA).
|
24 months (analyzes were performed throughout the study period).
|
|
Subcutaneous adipose tissue measured by DEXA
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
Subcutaneous adipose tissue mass (cm³) assessed using dual-energy X-ray absorptiometry (DEXA).
|
24 months (analyzes were performed throughout the study period).
|
|
Android fat percentage measured by DEXA
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
Android fat percentage (%) assessed using dual-energy X-ray absorptiometry (DEXA).
|
24 months (analyzes were performed throughout the study period).
|
|
Gynoid fat percentage measured by DEXA
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
Gynoid fat percentage (%) assessed using dual-energy X-ray absorptiometry (DEXA).
|
24 months (analyzes were performed throughout the study period).
|
|
Dietary habits score (QEB questionnaire)
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
Score from standardized Questionnaire of Eating Behaviour (QEB).
|
24 months (analyzes were performed throughout the study period).
|
|
Cognitive restraint, uncontrolled eating, and emotional eating scores (TFEQ-R18)
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
Scores for each subscale of Three-Factor Eating Questionnaire (range 0-100; higher score indicates greater expression of trait).
|
24 months (analyzes were performed throughout the study period).
|
|
Hunger and satiety ratings
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
Visual analogue scale or standardized scale (0-10)
|
24 months (analyzes were performed throughout the study period).
|
|
Physical activity level (IPAQ score)
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
International Physical Activity Questionnaire (IPAQ) score expressed in MET-minutes/week.
Higher values indicate higher physical activity level.
|
24 months (analyzes were performed throughout the study period).
|
|
Quality of life score (WHOQOL-BREF)
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
WHOQOL-BREF scores for physical, psychological, social, and environmental domains.
Scores range 0-100; higher score indicates better quality of life.
|
24 months (analyzes were performed throughout the study period).
|
|
Resting energy expenditure measured by indirect calorimetry
Aikaikkuna: 24 months (analyzes were performed throughout the study period).
|
REE measured in kcal/day using indirect calorimetry (Q-NRG+, COSMED).
|
24 months (analyzes were performed throughout the study period).
|
Yhteistyökumppanit ja tutkijat
Täältä löydät tähän tutkimukseen osallistuvat ihmiset ja organisaatiot.
Sponsori
Tutkijat
- Päätutkija: Lucyna Ostrowska, Professor, Department of Dietetics and Clinical Nutrition Medical University of Bialystok
Julkaisuja ja hyödyllisiä linkkejä
Tutkimusta koskevien tietojen syöttämisestä vastaava henkilö toimittaa nämä julkaisut vapaaehtoisesti. Nämä voivat koskea mitä tahansa tutkimukseen liittyvää.
Yleiset julkaisut
- Dani C, Giachetti S, Mura M, Tedesco S, Rossi E, Cassioli E, Tarchi L, Micali N, Ricca V, Castellini G. Investigating ghrelin and its isoforms in eating disorders: a network meta-analysis. Prog Neuropsychopharmacol Biol Psychiatry. 2025 Oct 2;142:111489. doi: 10.1016/j.pnpbp.2025.111489. Epub 2025 Sep 10.
- Clarke GS, Page AJ, Eldeghaidy S. The gut-brain axis in appetite, satiety, food intake, and eating behavior: Insights from animal models and human studies. Pharmacol Res Perspect. 2024 Oct;12(5):e70027. doi: 10.1002/prp2.70027.
Opintojen ennätyspäivät
Nämä päivämäärät seuraavat ClinicalTrials.gov-sivustolle lähetettyjen tutkimustietueiden ja yhteenvetojen edistymistä. National Library of Medicine (NLM) tarkistaa tutkimustiedot ja raportoidut tulokset varmistaakseen, että ne täyttävät tietyt laadunvalvontastandardit, ennen kuin ne julkaistaan julkisella verkkosivustolla.
Opi tärkeimmät päivämäärät
Opiskelun aloitus (Todellinen)
Tiistai 8. huhtikuuta 2025
Ensisijainen valmistuminen (Todellinen)
Tiistai 14. huhtikuuta 2026
Opintojen valmistuminen (Todellinen)
Tiistai 14. huhtikuuta 2026
Opintoihin ilmoittautumispäivät
Ensimmäinen lähetetty
Keskiviikko 13. toukokuuta 2026
Ensimmäinen toimitettu, joka täytti QC-kriteerit
Tiistai 2. kesäkuuta 2026
Ensimmäinen Lähetetty (Todellinen)
Torstai 4. kesäkuuta 2026
Tutkimustietojen päivitykset
Viimeisin päivitys julkaistu (Todellinen)
Torstai 4. kesäkuuta 2026
Viimeisin lähetetty päivitys, joka täytti QC-kriteerit
Tiistai 2. kesäkuuta 2026
Viimeksi vahvistettu
Perjantai 1. toukokuuta 2026
Lisää tietoa
Tähän tutkimukseen liittyvät termit
Avainsanat
Muita asiaankuuluvia MeSH-ehtoja
Muut tutkimustunnusnumerot
- B.SUB.24.112
- AZN.614.1.2024 (Muu apuraha/rahoitusnumero: Medical University of Bialystok)
Yksittäisten osallistujien tietojen suunnitelma (IPD)
Aiotko jakaa yksittäisten osallistujien tietoja (IPD)?
PÄÄTTÄMÄTÖN
Lääke- ja laitetiedot, tutkimusasiakirjat
Tutkii yhdysvaltalaista FDA sääntelemää lääkevalmistetta
Ei
Tutkii yhdysvaltalaista FDA sääntelemää laitetuotetta
Ei
Nämä tiedot haettiin suoraan verkkosivustolta clinicaltrials.gov ilman muutoksia. Jos sinulla on pyyntöjä muuttaa, poistaa tai päivittää tutkimustietojasi, ota yhteyttä register@clinicaltrials.gov. Heti kun muutos on otettu käyttöön osoitteessa clinicaltrials.gov, se päivitetään automaattisesti myös verkkosivustollemme .