Addition of Saturated and Trans-fatty Acids to the Diet Induces Depressive and Anxiety-like Behaviors in Drosophila melanogaster
| Autor: | Luana Barreto Meichtry, Gustavo Petri Guerra, Mustafa Munir Mustafa Dahleh, Rafael Roehrs, Elize Aparecida Santos Musachio, Sabrina Somacal, Mateus Cristofari Gayer, Tatiana Emanuelli, Vandreza Cardoso Bortolotto, Marina Prigol, Shanda de Freitas Couto, Stífani Machado Araujo, Márcia Rósula Poetini |
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| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
medicine.medical_specialty genetic structures Saturated fat Anxiety Biology 03 medical and health sciences 0302 clinical medicine Internal medicine medicine Melanogaster Animals Rats Wistar 5-HT receptor chemistry.chemical_classification General Neuroscience Fatty Acids fungi Fatty acid Metabolism Trans Fatty Acids biology.organism_classification Diet Rats Drosophila melanogaster 030104 developmental biology Endocrinology chemistry Composition (visual arts) Serotonin 030217 neurology & neurosurgery |
| Zdroj: | Neuroscience. 443:164-175 |
| ISSN: | 0306-4522 |
| DOI: | 10.1016/j.neuroscience.2020.07.042 |
| Popis: | This study aimed to evaluate the effects of the addition of saturated fat and hydrogenated vegetable fat (HVF) to the diet on depressive and anxiety-like behaviors in Drosophila melanogaster. Flies were exposed to experimental diets: regular diet (RD), or HVF in the concentrations of the substitute (SHVF), HVF 10% and HVF 20%, or Lard (L) in the concentrations of the substitute (SL), L 10% and L 20%, during seven days. Our results showed that flies fed with the HVF diet presented similar behaviors to depression, anxiety, and a higher number of aggressive events. Flies exposed to L showed only depressive-like behavior. Regarding serotonin levels (5HT), there was a significant reduction in the flies exposed to SHVF, HVF 10%, HVF 20%, and L 20%. Regarding the levels of octopamine (OA), there was a significant reduction in the flies exposed to both HVF and L rich diets when compared with the RD group. Also, there was a significant negative correlation between 5HT or OA levels and behaviors of aggressiveness, negative geotaxis, immobility time, light/dark, and grooming in the flies. This study shows that D. melanogaster can serve as a valuable model for understanding psychiatric disorders and that the type of fatty acid (FA) offered in the diet can influence these disorders. This demonstrates the importance of the composition of the FAs in the neural pathways, being able to influence the signaling of neurotransmitters, such as 5HT and OA, and thus, cause behavioral changes. |
| Databáze: | OpenAIRE |
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