Healthy Volunteers
Conditions
Brief summary
The purpose of this study is to investigate the role of erythromycin, a prokinetic agent, on hunger, and the brain mechanism lying behind it.
Interventions
physiological saline
Sponsors
Study design
Eligibility
Inclusion criteria
* Female only. * Age \> 18 and \< 60. * Body Mass Index (BMI) of 19-25 kg/m2 (no weight change of more than 5 kg in the past three months). * Not known to have any chronic medical illness or illnesses affecting the gastrointestinal, cardiovascular, or nervous systems, chronic pain or psychiatric disorder. * If female not known to be pregnant. * Not known to have any past upper gastrointestinal surgery.
Exclusion criteria
* Alcohol consumption \> 7 drinks / week * Major depression and chronic health conditions except controlled hypertension
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Functional brain images | 40 min after intervention | The functional brain images will be taken via functional magnetic resonance imaging (fMRI), and be analysed via a software called SPM. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| hunger scores | every 10 minutes since the scan starts | The hunger scores will be taken every 10 minutes since the scan starts via a 10 cm visual analogue scale. |
| gut hormones | every 10 min since the scan starts | Peripheral blood samples will be taken every 10 min since the scan starts until the endpoint of the study to measure gut hormones (motilin, ghrelin, CCK, PYY, GLP-1) by radioimmuno-assay. |