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Mouillot T, Parise A, Greco C, Barthet S, Brindisi MC, Penicaud L, Leloup C, Brondel L, Jacquin-Piques A. Differential Cerebral Gustatory Responses to Sucrose, Aspartame, and Stevia Using Gustatory Evoked Potentials in Humans. Nutrients 2020; 12:nu12020322. [PMID: 32012665 PMCID: PMC7071252 DOI: 10.3390/nu12020322] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 01/23/2020] [Accepted: 01/24/2020] [Indexed: 11/25/2022] Open
Abstract
Aspartame and Stevia are widely substituted for sugar. Little is known about cerebral activation in response to low-caloric sweeteners in comparison with high-caloric sugar, whereas these molecules lead to different metabolic effects. We aimed to compare gustatory evoked potentials (GEPs) obtained in response to sucrose solution in young, healthy subjects, with GEPs obtained in response to aspartame and Stevia. Twenty healthy volunteers were randomly stimulated with three solutions of similar intensities of sweetness: Sucrose 10 g/100 mL of water, aspartame 0.05 g/100 mL, and Stevia 0.03 g/100 mL. GEPs were recorded with EEG (Electroencephalogram) electrodes. Hedonic values of each solution were evaluated using the visual analog scale (VAS). The main result was that P1 latencies of GEPs were significantly shorter when subjects were stimulated by the sucrose solution than when they were stimulated by either the aspartame or the Stevia one. P1 latencies were also significantly shorter when subjects were stimulated by the aspartame solution than the Stevia one. No significant correlation was noted between GEP parameters and hedonic values marked by VAS. Although sucrose, aspartame, and Stevia lead to the same taste perception, cerebral activation by these three sweet solutions are different according to GEPs recording. Besides differences of taste receptors and cerebral areas activated by these substances, neural plasticity, and change in synaptic connections related to sweet innate preference and sweet conditioning, could be the best hypothesis to explain the differences in cerebral gustatory processing after sucrose and sweeteners activation.
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Affiliation(s)
- Thomas Mouillot
- Centre des Sciences du goût et de l’Alimentation, AgroSup Dijon, CNRS, INRA, Université Bourgogne Franche-Comté, F-21000 Dijon, France; (T.M.); (A.P.); (C.G.); (S.B.); (M.-C.B.); (L.P.); (C.L.); (L.B.)
- Department of Hepatology and Gastroenterology, 14, CHU Dijon Bourgogne, Rue Paul Gaffarel, F-21000 Dijon, France
| | - Anaïs Parise
- Centre des Sciences du goût et de l’Alimentation, AgroSup Dijon, CNRS, INRA, Université Bourgogne Franche-Comté, F-21000 Dijon, France; (T.M.); (A.P.); (C.G.); (S.B.); (M.-C.B.); (L.P.); (C.L.); (L.B.)
| | - Camille Greco
- Centre des Sciences du goût et de l’Alimentation, AgroSup Dijon, CNRS, INRA, Université Bourgogne Franche-Comté, F-21000 Dijon, France; (T.M.); (A.P.); (C.G.); (S.B.); (M.-C.B.); (L.P.); (C.L.); (L.B.)
| | - Sophie Barthet
- Centre des Sciences du goût et de l’Alimentation, AgroSup Dijon, CNRS, INRA, Université Bourgogne Franche-Comté, F-21000 Dijon, France; (T.M.); (A.P.); (C.G.); (S.B.); (M.-C.B.); (L.P.); (C.L.); (L.B.)
| | - Marie-Claude Brindisi
- Centre des Sciences du goût et de l’Alimentation, AgroSup Dijon, CNRS, INRA, Université Bourgogne Franche-Comté, F-21000 Dijon, France; (T.M.); (A.P.); (C.G.); (S.B.); (M.-C.B.); (L.P.); (C.L.); (L.B.)
- Department of Hepatology and Gastroenterology, 14, CHU Dijon Bourgogne, Rue Paul Gaffarel, F-21000 Dijon, France
- Department of Endocrinology and Nutrition, 14, CHU Dijon Bourgogne, Rue Paul Gaffarel, F-21000 Dijon, France
| | - Luc Penicaud
- Centre des Sciences du goût et de l’Alimentation, AgroSup Dijon, CNRS, INRA, Université Bourgogne Franche-Comté, F-21000 Dijon, France; (T.M.); (A.P.); (C.G.); (S.B.); (M.-C.B.); (L.P.); (C.L.); (L.B.)
- Department of Hepatology and Gastroenterology, 14, CHU Dijon Bourgogne, Rue Paul Gaffarel, F-21000 Dijon, France
- Department of Endocrinology and Nutrition, 14, CHU Dijon Bourgogne, Rue Paul Gaffarel, F-21000 Dijon, France
| | - Corinne Leloup
- Centre des Sciences du goût et de l’Alimentation, AgroSup Dijon, CNRS, INRA, Université Bourgogne Franche-Comté, F-21000 Dijon, France; (T.M.); (A.P.); (C.G.); (S.B.); (M.-C.B.); (L.P.); (C.L.); (L.B.)
| | - Laurent Brondel
- Centre des Sciences du goût et de l’Alimentation, AgroSup Dijon, CNRS, INRA, Université Bourgogne Franche-Comté, F-21000 Dijon, France; (T.M.); (A.P.); (C.G.); (S.B.); (M.-C.B.); (L.P.); (C.L.); (L.B.)
- Department of Hepatology and Gastroenterology, 14, CHU Dijon Bourgogne, Rue Paul Gaffarel, F-21000 Dijon, France
| | - Agnès Jacquin-Piques
- Centre des Sciences du goût et de l’Alimentation, AgroSup Dijon, CNRS, INRA, Université Bourgogne Franche-Comté, F-21000 Dijon, France; (T.M.); (A.P.); (C.G.); (S.B.); (M.-C.B.); (L.P.); (C.L.); (L.B.)
- Department of Clinical Neurophysiology, 14, CHU Dijon Bourgogne, Rue Paul Gaffarel, F-21000 Dijon, France
- Correspondence: ; Tel.: +33-3-80-29-59-02; Fax: +33-3-80-29-33-5
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Kotini A, Birbilis T, Anninos P, Seimenis I. Magnetoencephalography and normal pressure hydrocephalus: A case report. J Integr Neurosci 2018:JIN078. [PMID: 29689731 DOI: 10.3233/jin-180078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
A 82-year-old male experiencing headaches, dementia, urinary incontinence and gait instability was diagnosed with normal pressure hydrocephalus (NPH) and underwent a resting state magnetoencephalography (MEG) examination. MEG data were recorded in a magnetically shielded room with a whole-head 122 channel biomagnetometer. Following MEG, a ventriculoperitoneal (VP) shunt was placed in his head and greatly improved his symptomatology. Spontaneous MEG recordings revealed lower magnetic fields at frontal and frontotemporal regions compared to central and posterior regions. This finding correlated well with the significant ventricular distention, and specifically the enlargement of the frontal horns of the lateral ventricles, observed in presurgical CT. The regional pattern of MEG signal decrease in NPH seems to be quite different from that encountered in brain atrophy. In the latter case, a more generalized distribution of low magnetic fields is observed, possibly reflecting the high sensitivity of MEG to activity originating in sulci. Acquired data suggest that MEG may be able to differentiate between NPH and brain atrophy. Furthermore, MEG could potentially constitute a non-invasive, non-imaging tool, useful in the selection of patients with NPH to undergo shunt surgery. The findings of this study warrant further research in patient groups before firm conclusions can be drawn.
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Affiliation(s)
- A Kotini
- Laboratory of Medical Physics, Medical School, Democritus University of Thrace, Alexandroupolis, 68100, Greece
| | - T Birbilis
- Department of Neurosurgery, Medical School, Democritus University of Thrace, Alexandroupolis, 68100, Greece
| | - P Anninos
- Laboratory of Medical Physics, Medical School, Democritus University of Thrace, Alexandroupolis, 68100, Greece
| | - I Seimenis
- Laboratory of Medical Physics, Medical School, Democritus University of Thrace, Alexandroupolis, 68100, Greece
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Jacquin-Piques A, Gaudillat S, Mouillot T, Gigot V, Meillon S, Leloup C, Penicaud L, Brondel L. Prandial States Modify the Reactivity of the Gustatory Cortex Using Gustatory Evoked Potentials in Humans. Front Neurosci 2016; 9:490. [PMID: 26778949 PMCID: PMC4700205 DOI: 10.3389/fnins.2015.00490] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 12/10/2015] [Indexed: 11/20/2022] Open
Abstract
Previous functional Magnetic Resonance Imaging studies evaluated the role of satiety on cortical taste area activity and highlighted decreased activation in the orbito-frontal cortex when food was eaten until satiation. The modulation of orbito-frontal neurons (secondary taste area) by ad libitum food intake has been associated with the pleasantness of the food's flavor. The insula and frontal operculum (primary taste area) are also involved in reward processing. The aim was to compare human gustatory evoked potentials (GEP) recorded in the primary and secondary gustatory cortices in a fasted state with those after food intake. Fifteen healthy volunteers were enrolled in this observational study. In each of two sessions, two GEP recordings were performed (at 11:00 am and 1:30 pm) in response to sucrose gustatory stimulation, and a sucrose-gustatory threshold was determined. During one session, a standard lunch was provided between the two GEP recordings. During the other session, subjects had nothing to eat. Hunger sensation, wanting, liking, and the perception of the solution's intensity were evaluated with visual analog scales. GEP latencies measured in the Pz (p < 0.001), Cz (p < 0.01), Fz (p < 0.001) recordings (primary taste area) were longer after lunch than in the pre-prandial condition. Fp1 and Fp2 latencies (secondary taste area) tended to be longer after lunch, but the difference was not significant. No difference was observed for the sucrose-gustatory threshold regardless of the session and time. Modifications in the primary taste area activity during the post-prandial period occurred regardless of the nature of the food eaten and could represent the activity of the frontal operculum and insula, which was recently shown to be modulated by gut signals (GLP-1, CCK, ghrelin, or insulin) through vagal afferent neurons or metabolic changes of the internal milieu after nutrient absorption. This trial was registered at clinicalstrials.gov as NCT02472444.
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Affiliation(s)
- Agnès Jacquin-Piques
- Centre des Sciences du Goût et de l'Alimentation, UMR 6265, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, University of Bourgogne Franche-ComtéDijon, France; Department of Clinical Neurophysiology, University HospitalDijon, France
| | - Stéphanie Gaudillat
- Centre des Sciences du Goût et de l'Alimentation, UMR 6265, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, University of Bourgogne Franche-Comté Dijon, France
| | - Thomas Mouillot
- Centre des Sciences du Goût et de l'Alimentation, UMR 6265, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, University of Bourgogne Franche-ComtéDijon, France; Department of Hepato-gastro-enterology, University HospitalDijon, France
| | - Vincent Gigot
- Centre des Sciences du Goût et de l'Alimentation, UMR 6265, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, University of Bourgogne Franche-Comté Dijon, France
| | - Sophie Meillon
- Centre des Sciences du Goût et de l'Alimentation, UMR 6265, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, University of Bourgogne Franche-Comté Dijon, France
| | - Corinne Leloup
- Centre des Sciences du Goût et de l'Alimentation, UMR 6265, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, University of Bourgogne Franche-Comté Dijon, France
| | - Luc Penicaud
- Centre des Sciences du Goût et de l'Alimentation, UMR 6265, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, University of Bourgogne Franche-Comté Dijon, France
| | - Laurent Brondel
- Centre des Sciences du Goût et de l'Alimentation, UMR 6265, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, University of Bourgogne Franche-ComtéDijon, France; Department of Hepato-gastro-enterology, University HospitalDijon, France
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Anninos P, Adamopoulos A, Kotini A. MEG as a Medical Diagnostic Tool in the Greek Population. ACTA MEDICA (HRADEC KRÁLOVÉ) 2015; 58:71-8. [DOI: 10.14712/18059694.2015.100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Magnetoencephalography (MEG) is the recording of the magnetic field produced by the flowing of ions in the brain. This article reports our experience in the application of MEG in patients and healthy volunteers in the Greek population. We provide a brief description of our research work. The MEG data were recorded in a magnetically shielded room with a whole-head 122 channel or an one-channel biomagnetometer. Our results lead us to believe that the MEG is an important research field which is evolving quickly with a number of interesting findings with respect to normal and abnormal functions of the human brain. It could provide clinical practice with an easy to perform non invasive method, which could be adjunct to conventional methods for the evaluation of brain disorders.
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