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Associations between ghrelin and leptin and neural food cue reactivity in a fasted and sated state
- Source :
- NeuroImage 240 (2021), NeuroImage, 240, Wever, M C M, van Meer, F, Charbonnier, L, Crabtree, D R, Buosi, W, Giannopoulou, A, Androutsos, O, Johnstone, A M, Manios, Y, Meek, C L, Holst, J J, Smeets, P A M & Full4Health consortium 2021, ' Associations between ghrelin and leptin and neural food cue reactivity in a fasted and sated state ', NeuroImage, vol. 240, 118374 . https://doi.org/10.1016/j.neuroimage.2021.118374, NeuroImage, Vol 240, Iss, Pp 118374-(2021)
- Publication Year :
- 2021
-
Abstract
- Food cue exposure can trigger eating. Food cue reactivity (FCR) is a conditioned response to food cues and includes physiological responses and activation of reward-related brain areas. FCR can be affected by hunger and weight status. The appetite-regulating hormones ghrelin and leptin play a pivotal role in homeostatic as well as hedonic eating. We examined the association between ghrelin and leptin levels and neural FCR in the fasted and sated state and the association between meal-induced changes in ghrelin and neural FCR, and in how far these associations are related to BMI and HOMA-IR. Data from 109 participants from three European centers (age 50±18 y, BMI 27±5 kg/m2) who performed a food viewing task during fMRI after an overnight fast and after a standardized meal were analyzed. Blood samples were drawn prior to the viewing task in which high-caloric, low-caloric and non-food images were shown. Fasting ghrelin was positively associated with neural FCR in the inferior and superior occipital gyrus in the fasted state. This was partly attributable to BMI and HOMA-IR. These brain regions are involved in visual attention, suggesting that individuals with higher fasting ghrelin have heightened attention to food cues. Leptin was positively associated with high calorie FCR in the medial prefrontal cortex (PFC) in the fasted state and to neural FCR in the left supramarginal gyrus in the fasted versus sated state, when correcting for BMI and HOMA-IR, respectively. This PFC region is involved in assessing anticipated reward value, suggesting that for individuals with higher leptin levels high-caloric foods are more salient than low-caloric foods, but foods in general are not more salient than non-foods. There were no associations between ghrelin and leptin and neural FCR in the sated state, nor between meal-induced changes in ghrelin and neural FCR. In conclusion, we show modest associations between ghrelin and leptin and neural FCR in a relatively large sample of European adults with a broad age and BMI range. Our findings indicate that people with higher leptin levels for their weight status and people with higher ghrelin levels may be more attracted to high caloric foods when hungry. The results of the present study form a foundation for future studies to test whether food intake and (changes in) weight status can be predicted by the association between (mainly fasting) ghrelin and leptin levels and neural FCR.
- Subjects :
- Adult
Male
Leptin
medicine.medical_specialty
Calorie
Hunger
Cognitive Neuroscience
media_common.quotation_subject
Appetite
Neurosciences. Biological psychiatry. Neuropsychiatry
chemical and pharmacologic phenomena
Visual food cues
Satiety Response
Food cue reactivity
Internal medicine
Medicine
Humans
Obesity
Prefrontal cortex
Sensory Science and Eating Behaviour
media_common
VLAG
Aged
Meal
business.industry
digestive, oral, and skin physiology
Brain
Fasting
Middle Aged
Overweight
medicine.disease
Magnetic Resonance Imaging
Ghrelin
Hormones
Endocrinology
Sensoriek en eetgedrag
Neurology
Food
Female
Cues
business
hormones, hormone substitutes, and hormone antagonists
Biomarkers
Hormone
RC321-571
Subjects
Details
- Language :
- English
- ISSN :
- 10538119
- Database :
- OpenAIRE
- Journal :
- NeuroImage 240 (2021), NeuroImage, 240, Wever, M C M, van Meer, F, Charbonnier, L, Crabtree, D R, Buosi, W, Giannopoulou, A, Androutsos, O, Johnstone, A M, Manios, Y, Meek, C L, Holst, J J, Smeets, P A M & Full4Health consortium 2021, ' Associations between ghrelin and leptin and neural food cue reactivity in a fasted and sated state ', NeuroImage, vol. 240, 118374 . https://doi.org/10.1016/j.neuroimage.2021.118374, NeuroImage, Vol 240, Iss, Pp 118374-(2021)
- Accession number :
- edsair.doi.dedup.....c4dd21e8b76cc36458d665d772499c3e