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- Klinische Studie NCT01493583
Central Nervous Processing of Visual Food Stimuli in Severely Obese Subjects
Central Nervous Processing of Visual Food Stimuli in Severely Obese Subjects and After Roux-en Y Gastric Bypass Surgery - a fMRI Study
Studienübersicht
Status
Bedingungen
Studientyp
Einschreibung (Tatsächlich)
Kontakte und Standorte
Studienorte
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Rorschach, Schweiz, 9400
- Interdisciplinary Obesity Center, Cantonal Hospital St. Gallen
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Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Probenahmeverfahren
Studienpopulation
Severely obese (body mass index; BMI > 35 kg/m2) women and previously severely obese women who had undergone a Roux-en Y gastric bypass operation were recruited from the Interdisciplinary Obesity Center, cantonal hospital St. Gallen (Switzerland), and the adiposity platform of the University of Tübingen.
lean control women were recruited in St. Gallen and in Tübingen
Beschreibung
Inclusion Criteria:
- women with BMI > 35kg/m2
- women, who had undergone gastric bypass surgery at least one year ago
- lean women
Exclusion Criteria:
- known psychiatric or neurological diseases
- current medication with drug acting on the central nervous system
- drugs that are known to affect eating behavior
- contraindication for the fMRI scanning, e.g. metal implants or metal containing tattoos
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
Kohorten und Interventionen
Gruppe / Kohorte |
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severely obese women
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Women after Roux-en Y gastric bypass surgery
Women recruited for this group had undergone Roux-en Y gastric bypass surgery at least one year before.
In this women measurement of brain activity and gastrointestinal and metabolic response took place between 13 and 106 month after surgery.
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lean women
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Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
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brain activity
Zeitfenster: brain activity was measured at a single time point in all three groups; of note: women after Roux-en Y gastric bypass surgery were measured between 13 and 106 month after surgery.
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In all women brain activity was assessed by functional magnetic resonance imaging (fMRI, BOLD Method, 1.5 Tesla fMRI Scanner, Siemens, Erlangen, Germany) during the presentation of food and non-food related pictures as well as during state conditions. In all three groups, brain activity was measured at a single time point. Of note, women, who had undergone Roux-en Y gastric bypass surgery were measured between 13 and 106 month after surgery. Brain activity was not measured before surgery in this group. |
brain activity was measured at a single time point in all three groups; of note: women after Roux-en Y gastric bypass surgery were measured between 13 and 106 month after surgery.
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Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
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gastrointestinal and metabolic responses to standardized meal
Zeitfenster: measured at a single time point in all three groups; of note: women after Roux-en Y gastric bypass surgery were measured between 13 and 106 month after surgery at a single time point
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The gastrointestinal and metabolic responses to standardized meal were measured in the morning between 7:30 and 10:30 a.m. gastrointestinal and metabolic response were measured in all women at a single time point. Of note, women, who had undergone Roux-en Y gastric bypass surgery were measured between 13 and 106 month after surgery. Gastrointestinal and metabolic responses were not measured before surgery in this group. |
measured at a single time point in all three groups; of note: women after Roux-en Y gastric bypass surgery were measured between 13 and 106 month after surgery at a single time point
|
Mitarbeiter und Ermittler
Sponsor
Ermittler
- Hauptermittler: Bernd Schultes, Prof. Dr. med., Interdisciplinary Obesity Center, Kantonal Hospital St. Gallen, Rorschach, Switzerland
- Hauptermittler: Niels Birbaumer, Prof. Dr., Institute of Medical Psychology and Behavioural Neurobiology, University of Tübingen, Tübingen, Germany
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn
Primärer Abschluss (Tatsächlich)
Studienabschluss (Tatsächlich)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Schätzen)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Schätzen)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Andere Studien-ID-Nummern
- EKSG09/033/2B
- 09/033/2B (Andere Kennung: ID by EKSG)
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