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Identification of Human Brain Proteins for Bitter-Sweet Taste Perception: A Joint Proteome-Wide and Transcriptome-Wide Association Study. Nutrients 2022; 14:nu14102177. [PMID: 35631318 PMCID: PMC9143225 DOI: 10.3390/nu14102177] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/17/2022] [Accepted: 05/20/2022] [Indexed: 02/04/2023] Open
Abstract
Objective: Bitter or sweet beverage perception is associated with alterations in brain structure and function. Our aim is to analyze the genetic association between bitter or sweet beverage perception and human brain proteins. Materials and methods: In our study, 8356 and 11,518 proteins were first collected from two reference datasets of human brain proteomes, the ROS/MAP and Banner. The bitter or sweet beverage perception-related proteome-wide association studies (PWAS) were then conducted by integrating recent genome-wide association study (GWAS) data (n = 422,300) of taste perception with human brain proteomes. The human brain gene expression profiles were collected from two reference datasets, including the brain RNA-seq (CBR) and brain RNA-seq splicing (CBRS). The taste perception-related transcriptome-wide association studies (TWAS) were finally performed by integrating the same GWAS data with human brain gene expression profiles to validate the PWAS findings. Results: In PWAS, four statistically significant proteins were identified using the ROS/MAP and then replicated using the Banner reference dataset (all permutated p < 0.05), including ABCG2 for total bitter beverages and tea, CPNE1 for total bitter beverage, ACTR1B for artificially sweetened beverages, FLOT2 for alcoholic bitter beverages and total sweet beverages. In TWAS analysis, six statistically significant genes were detected by CBR and confirmed by the CBRS reference dataset (all permutated p < 0.05), including PIGG for total bitter beverages and non-alcoholic bitter beverages, C3orf18 for total bitter beverages, ZSWIM7 for non-alcoholic bitter beverages, PEX7 for coffee, PKP4 for tea and RPLP2 for grape juice. Further comparison of the PWAS and TWAS found three common statistically significant proteins/genes identified from the Banner and CBR reference datasets, including THBS4 for total bitter beverages, CA4 for non-alcoholic bitter beverages, LIAS for non-grape juices. Conclusions: Our results support the potential effect of bitter or sweet beverage perception on brain function and identify several candidate brain proteins for bitter or sweet beverage perception.
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Beecher K, Wang J, Chehrehasa F, Depoortere R, Varney MA, Newman-Tancredi A, Bartlett SE, Belmer A. Dissecting the contribution of 5-HT1A auto- and heteroreceptors in sucrose overconsumption in mice. Biomed Pharmacother 2022; 148:112699. [DOI: 10.1016/j.biopha.2022.112699] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 01/20/2022] [Accepted: 02/02/2022] [Indexed: 01/04/2023] Open
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3
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Kaidbey JH, Ferguson K, Halberg SE, Racke C, Visek AJ, Gearhardt AN, Juliano LM, Dietz WH, Sacheck J, Sylvetsky AC. Stop the Pop: A Mixed-Methods Study Examining Children's Physical and Emotional Responses during Three Days of Sugary Drink Cessation. Nutrients 2022; 14:nu14071328. [PMID: 35405940 PMCID: PMC9003451 DOI: 10.3390/nu14071328] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/15/2022] [Accepted: 03/19/2022] [Indexed: 01/04/2023] Open
Abstract
Despite public health efforts to reduce sugary drink consumption, children’s intake continues to exceed recommendations. While numerous barriers to lowering sugary drink consumption have been identified, aversive feelings during sugary drink cessation may further challenge sustained reduction in children’s sugary drink consumption. Herein, we describe “Stop the Pop”, an intervention to examine children’s physical and emotional responses during three days of sugary drink cessation. Children (n = 150) ages 8–14, who reported habitual consumption of ≥12 ounces of sugary drinks daily, were instructed to avoid sweetened beverages for three days. At baseline and on each day of cessation, children completed a daily feelings questionnaire, and a subset of children (n = 30) also completed a qualitative interview following cessation. During sugary drink cessation, children reported physical and emotional improvements, including being less tired, angry, and annoyed; having less trouble sleeping; and less frequently arguing with others, getting in trouble, and getting mad. However, unfavorable responses, such as mood disturbances and having less energy, were reported by some participants. Our results suggest that children who habitually consume sugary drinks may experience physical and emotional improvements during short-term sugary drink cessation, although longer-term examination is needed and inter-individual variability in responses to cessation warrants further study.
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Affiliation(s)
- Jasmine H. Kaidbey
- Department of Exercise and Nutrition Sciences, Milken Institute School of Public Health, The George Washington University, Washington, DC 20052, USA; (J.H.K.); (K.F.); (S.E.H.); (C.R.); (A.J.V.); (J.S.)
| | - Kacey Ferguson
- Department of Exercise and Nutrition Sciences, Milken Institute School of Public Health, The George Washington University, Washington, DC 20052, USA; (J.H.K.); (K.F.); (S.E.H.); (C.R.); (A.J.V.); (J.S.)
| | - Sabrina E. Halberg
- Department of Exercise and Nutrition Sciences, Milken Institute School of Public Health, The George Washington University, Washington, DC 20052, USA; (J.H.K.); (K.F.); (S.E.H.); (C.R.); (A.J.V.); (J.S.)
| | - Caroline Racke
- Department of Exercise and Nutrition Sciences, Milken Institute School of Public Health, The George Washington University, Washington, DC 20052, USA; (J.H.K.); (K.F.); (S.E.H.); (C.R.); (A.J.V.); (J.S.)
| | - Amanda J. Visek
- Department of Exercise and Nutrition Sciences, Milken Institute School of Public Health, The George Washington University, Washington, DC 20052, USA; (J.H.K.); (K.F.); (S.E.H.); (C.R.); (A.J.V.); (J.S.)
| | | | - Laura M. Juliano
- Department of Psychology, American University, Washington, DC 20016, USA;
| | - William H. Dietz
- Sumner M. Redstone Global Center for Prevention and Wellness, Milken Institute School of Public Health, The George Washington University, Washington, DC 20052, USA;
| | - Jennifer Sacheck
- Department of Exercise and Nutrition Sciences, Milken Institute School of Public Health, The George Washington University, Washington, DC 20052, USA; (J.H.K.); (K.F.); (S.E.H.); (C.R.); (A.J.V.); (J.S.)
| | - Allison C. Sylvetsky
- Department of Exercise and Nutrition Sciences, Milken Institute School of Public Health, The George Washington University, Washington, DC 20052, USA; (J.H.K.); (K.F.); (S.E.H.); (C.R.); (A.J.V.); (J.S.)
- Sumner M. Redstone Global Center for Prevention and Wellness, Milken Institute School of Public Health, The George Washington University, Washington, DC 20052, USA;
- Correspondence: ; Tel.: +202-994-5602
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Pereira CTM, Pereira DM, Bolini HMA. The Influence of the Presence of Sweeteners to Substitute Sucrose in Yogurts: A Review. JOURNAL OF CULINARY SCIENCE & TECHNOLOGY 2022. [DOI: 10.1080/15428052.2022.2040676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | - Dalva Muniz Pereira
- Department of Educational Development, Federal Institute of Education, Science and Technology of Maranhão, Caxias, Brazil
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Wei Y, Wang G, Chen J, Xiao L, Wu Z, He J, Zhang N. Maternal deprivation induces cytoskeletal alterations and depressive-like behavior in adult male rats by regulating the AKT/GSK3β/CRMP2 signaling pathway. Physiol Behav 2021; 242:113625. [PMID: 34666114 DOI: 10.1016/j.physbeh.2021.113625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 08/21/2021] [Accepted: 10/13/2021] [Indexed: 12/25/2022]
Abstract
Early-life adverse events exert persistent effects on brain functions and may increase the risk of psychopathology in adulthood. However, the underlying mechanism remains unclear. The purpose of our study was to study the long-lasting effects of maternal deprivation (MD) on depression-related behaviors and microtubule dynamics, and to illuminate the underlying molecular mechanism. Rat pups were separated from the dams for 360 min (MD) or 15 min (brief maternal separation) each day from postnatal day 4 through 10. Rats with MD experience showed significant depressive-like behaviors in adulthood, while brief maternal separation did not alter the behaviors. Behavioral alterations in the MD group were accompanied by alterations in the AKT/GSK3β/CRMP2 signaling pathway and hyperphosphorylation of CRMP2. CRMP2 interacted and colocalized with the cytoskeleton in the hippocampus, and the overlap of CRMP2 and tubulin staining in the hippocampus of MD rats was decreased. In MD rats, the expression of the α-tubulin isoforms Acet-tubulin and Tyr-tubulin changed, and the ratio of Tyr/Acet-tubulin, which is an important marker of microtubule dynamics, was decreased, indicating decreased microtubule dynamics. Furthermore, regulation of the AKT/GSK3β/CRMP2 signaling pathway by an LY294002 microinjection in the hippocampus resulted in cytoskeletal alterations and depressive-like behaviors in rats. These findings suggest that early-life MD induces depressive-like behaviors and cytoskeletal alterations in adult male rats and that the effects may be partly mediated by the AKT/GSK3β/CRMP2 signaling pathway. An understanding of the mechanism underlying the effect of MD on behaviors is crucial for developing pharmacological and psychological interventions for childhood neglect.
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Affiliation(s)
- Yanyan Wei
- Beijing Hui-Long-Guan Hospital, Peking University, Beijing, 100096, China
| | - Gaohua Wang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road 238#, Wuhan 430060, Hubei, PR China.
| | - Jingxu Chen
- Beijing Hui-Long-Guan Hospital, Peking University, Beijing, 100096, China
| | - Ling Xiao
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road 238#, Wuhan 430060, Hubei, PR China
| | - Zuotian Wu
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road 238#, Wuhan 430060, Hubei, PR China
| | - Jing He
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road 238#, Wuhan 430060, Hubei, PR China
| | - Nan Zhang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road 238#, Wuhan 430060, Hubei, PR China
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Bradshaw CM. Choice between different concentrations of sucrose in an adjusting-magnitude schedule: Evidence for reinforcer-specific value maxima. Behav Processes 2020; 181:104275. [PMID: 33075441 DOI: 10.1016/j.beproc.2020.104275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/26/2020] [Accepted: 10/12/2020] [Indexed: 10/23/2022]
Abstract
According to the Multiplicative Hyperbolic Model (MHM), an extension of Mazur's (1987) model of delay discounting, the value of a reinforcer is an increasing hyperbolic function of its size (q). This experiment tested a prediction based on a revised version of MHM (MHM-R), according to which the maximum value may differ between different reinforcers, a possibility not envisaged in MHM. Rats were trained under a discrete-trials adjusting-magnitude schedule in which a response on lever B delivered a dilute sucrose reinforcer (0.2 M) of fixed volume, qB, while a response on lever A delivered a more concentrated sucrose solution (0.4 M) the volume of which, qA, was adjusted according to the rats' choices. When B was preferred in a given block of trials, qA was increased in the following block; when A was preferred, qA was reduced in the following block. qB was varied across four phases of the experiment and the corresponding indifference magnitudes of A (qA(50)) were measured. In keeping with expectations based on both MHM and MHM-R, qA(50) increased approximately linearly with qB, and 1/qA(50) with 1/qB. The ratio qB/qA(50) increased linearly with qB with a positive intercept, a finding that is consistent with MHM-R but not with MHM.
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Affiliation(s)
- C M Bradshaw
- Division of Psychiatry, University of Nottingham, UK.
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7
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Effects of Non-nutritive Sweeteners on Sweet Taste Processing and Neuroendocrine Regulation of Eating Behavior. Curr Nutr Rep 2020; 9:278-289. [PMID: 32588329 DOI: 10.1007/s13668-020-00323-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE OF REVIEW Non-nutritive sweeteners (NNS) are increasingly used as a replacement for nutritive sugars as means to quench the desire for "sweets" while contributing few or no dietary calories. However, there is concern that NNS may uncouple the evolved relationship between sweet taste and post-ingestive neuroendocrine signaling. In this review, we examine the effects of NNS exposure on neural and peripheral systems in humans. RECENT FINDINGS NNS exposure during early development may influence sweet taste preferences, and NNS consumption might increase motivation for sweet foods. Neuroimaging studies provide evidence that NNS elicit differential neuronal responsivity in areas related to reward and satiation, compared with caloric sweeteners. Findings are heterogenous regarding whether NNS affect physiological responses. Additional studies are warranted regarding the consequences of NNS on metabolic outcomes and neuroendocrine pathways. Given the widespread popularity of NNS, future studies are essential to establish their role in long-term health.
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Zupanič N, Hristov H, Gregorič M, Blaznik U, Delfar N, Koroušić Seljak B, Ding EL, Fidler Mis N, Pravst I. Total and Free Sugars Consumption in a Slovenian Population Representative Sample. Nutrients 2020; 12:nu12061729. [PMID: 32526954 PMCID: PMC7352580 DOI: 10.3390/nu12061729] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/04/2020] [Accepted: 06/05/2020] [Indexed: 01/09/2023] Open
Abstract
Excessive free sugars consumption is associated with poor health outcomes. Thus, the World Health Organization (WHO) recommends limiting free sugars intake to no more than 10% of total energy intake. To evaluate current intakes of dietary sugars and monitor the adherence to the guidelines, the objective of this study was to comprehensively assess total and free sugars consumption of different age groups within the Slovenian population. The Slovenian national food consumption survey SI.Menu 2017/18 was conducted on representative samples of adolescents (10–17 years), adults (18–64 years), and the elderly (65–74 years) using two non-consecutive 24-h dietary recalls. The analyses were carried out on a sample of 1248 study participants. Free sugars content in food was estimated based on previously established databases. The population weighted median free sugars intake accounted for 10.1% of total energy intake (TEI) among adolescents, 6.4% among adults, and 6.5% in the elderly population. Both total and free sugars consumption in the percentage of TEI were higher among women than men, in participants with lower education, and those with higher family net income. The main sources of free sugars in adolescents were beverages, cakes, muffins, pastry, and dairy products; for adults and the elderly, the key sources of free sugars were beverages, cakes, muffins, pastry, and sugars, honey, and related products. A total of 56% of adolescents, 84% of adults, and 81% of the elderly population adhered to the WHO free sugars guidelines. Additional measures will be required to further decrease free sugars consumption among the teenage population, in which dietary patterns are still of greatest concern.
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Affiliation(s)
- Nina Zupanič
- Nutrition Institute, Tržaška cesta 40, SI-1000 Ljubljana, Slovenia; (N.Z.); (H.H.)
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
| | - Hristo Hristov
- Nutrition Institute, Tržaška cesta 40, SI-1000 Ljubljana, Slovenia; (N.Z.); (H.H.)
| | - Matej Gregorič
- National Institute of Public Health, Trubarjeva 2, SI-1000 Ljubljana, Slovenia; (M.G.); (U.B.); (N.D.)
| | - Urška Blaznik
- National Institute of Public Health, Trubarjeva 2, SI-1000 Ljubljana, Slovenia; (M.G.); (U.B.); (N.D.)
| | - Nataša Delfar
- National Institute of Public Health, Trubarjeva 2, SI-1000 Ljubljana, Slovenia; (M.G.); (U.B.); (N.D.)
| | | | - Eric L. Ding
- Department of Nutrition, Harvard Chan School of Public Health, Boston, MA 02115, USA;
| | - Nataša Fidler Mis
- Department of Gastroenterology, Hepatology and Nutrition, University Children’s Hospital, University Medical Centre Ljubljana, Bohoričeva ulica 22a, SI-1000 Ljubljana, Slovenia;
| | - Igor Pravst
- Nutrition Institute, Tržaška cesta 40, SI-1000 Ljubljana, Slovenia; (N.Z.); (H.H.)
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
- VIST—Higher School of Applied Sciences, Gerbičeva cesta 51A, SI-1000 Ljubljana, Slovenia
- Correspondence: ; Tel.: +386-590-68871; Fax: +386-310-07981
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Roberts CA, Giesbrecht T, Fallon N, Thomas A, Mela DJ, Kirkham TC. A Systematic Review and Activation Likelihood Estimation Meta-Analysis of fMRI Studies on Sweet Taste in Humans. J Nutr 2020; 150:1619-1630. [PMID: 32271923 PMCID: PMC7269728 DOI: 10.1093/jn/nxaa071] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/16/2020] [Accepted: 02/28/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The reward value of palatable foods is often cited as an important influence on eating behaviors, including intake of sugars. However, human neuroimaging studies have generated conflicting evidence on the basic neural representation of taste and reward responses to caloric sweeteners (sucrose and glucose), and most relevant studies have used small subject numbers. OBJECTIVE We conducted a systematic review and a coordinate-based meta-analysis of studies reporting brain responses to oral sugar solutions. METHODS A systematic search of MEDLINE, Scopus, and PsycINFO through October 2019 identified fMRI studies (in healthy human adults, including those with overweight or obesity) assessing differences in responses to purified sweet and nonsweet taste stimuli. Data were extracted with the primary objective of quantifying evidence for the activation of brain regions associated with caloric sweet taste sensation. We used activation likelihood estimation meta-analysis methods. We also performed multiple sensitivity analyses to assess the generality of effects. RESULTS Of 455 unique articles, 15 met the criteria for inclusion. These contributed to 2 primary meta-analyses: 1) sucrose (13 experiments, 179 coordinates, n = 241) and 2) sucrose + glucose (16 experiments, 209 coordinates, n = 262). Consistent activation was apparent in primary taste areas: insula (69.2% of studies) and opercular cortex (76.9% of studies), precentral gyri (53.9% of studies), and globus pallidus and postcentral gyrus (30.8% of studies for each). Evidence of reward activity (caudate) was seen in the primary analyses (30.8% of studies) but not in sensitivity analysis. CONCLUSIONS We confirm the importance of primary taste areas for gustatory processing in human adults. We also provide tentative evidence for reward-related caudate activity in relation to the sweet taste of caloric sugars. A number of factors affect the observation and interpretation of brain responses, including reward-related activity. Firm conclusions require confirmation with large data set studies.
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Affiliation(s)
- Carl A Roberts
- Department of Psychological Sciences, University of Liverpool, Liverpool, United Kingdom,Address correspondence to CAR (e-mail: )
| | | | - Nicholas Fallon
- Department of Psychological Sciences, University of Liverpool, Liverpool, United Kingdom
| | | | | | - Tim C Kirkham
- Department of Psychological Sciences, University of Liverpool, Liverpool, United Kingdom
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Choe WH, Lee KA, Goto Y, Lee YA. Concurrent and Delayed Behavioral and Monoamine Alterations by Excessive Sucrose Intake in Juvenile Mice. Front Neurosci 2020; 14:504. [PMID: 32508582 PMCID: PMC7248345 DOI: 10.3389/fnins.2020.00504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 04/22/2020] [Indexed: 01/21/2023] Open
Abstract
Our daily diet in the modern society has substantially changed from that in the ancient past. Consequently, new disorders associated with such dietary changes have emerged. For instance, excessive intake of compounds, such as sucrose (SUC), has recently been reported to induce pathological neuronal changes in adults, such as food addiction. It is still largely unclear whether and how excessive intake of such nutrients affects neurodevelopment. We investigated changes in behavior and monoamine signaling caused by excessive, semi-chronic intake of SUC and the non-caloric sweetener saccharin (SAC) in juvenile mice, using a battery of behavioral tests and high-performance liquid chromatography. Both SUC and SAC intake induced behavioral alterations such as altered amphetamine responses, sucrose preference, stress response, and anxiety, but did not affect social behavior and cognitive function such as attention in juvenile and adult mice. Moreover, SUC and SAC also altered dopamine and serotonin transmission in mesocorticolimbic regions. Some of these behavioral and neural alterations were triggered by SAC and SUC but others were distinct between the treatments. Moreover, alterations induced in juvenile mice were also different from those observed in adult mice. These results suggest that excessive SUC and SAC intake during the juvenile period may cause concurrent and delayed behavioral and monoamine signaling alterations in juvenile and adult mice, respectively.
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Affiliation(s)
- Won-Hui Choe
- Department of Food Science and Nutrition, Daegu Catholic University, Gyeongsan, South Korea
| | - Kyung-A Lee
- Department of Food Science and Nutrition, Daegu Catholic University, Gyeongsan, South Korea
| | - Yukiori Goto
- Primate Research Institute, Kyoto University, Kyoto, Japan
| | - Young-A Lee
- Department of Food Science and Nutrition, Daegu Catholic University, Gyeongsan, South Korea
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11
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The impact of sugar consumption on stress driven, emotional and addictive behaviors. Neurosci Biobehav Rev 2019; 103:178-199. [DOI: 10.1016/j.neubiorev.2019.05.021] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 03/14/2019] [Accepted: 05/19/2019] [Indexed: 12/20/2022]
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Higgins KA, Mattes RD. A randomized controlled trial contrasting the effects of 4 low-calorie sweeteners and sucrose on body weight in adults with overweight or obesity. Am J Clin Nutr 2019; 109:1288-1301. [PMID: 30997499 DOI: 10.1093/ajcn/nqy381] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 12/11/2018] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Low-calorie sweeteners (LCSs) provide sweetness with little or no energy. However, each LCS's unique chemical structure has potential to elicit different sensory, physiological, and behavioral responses that affect body weight. OBJECTIVE The purpose of this trial was to compare the effects of consumption of 4 LCSs and sucrose on body weight, ingestive behaviors, and glucose tolerance over a 12-wk intervention in adults (18-60 y old) with overweight or obesity (body mass index 25-40 kg/m2). METHODS In a parallel-arm design, 154 participants were randomly assigned to consume 1.25-1.75 L of beverage sweetened with sucrose (n = 39), aspartame (n = 30), saccharin (n = 29), sucralose (n = 28), or rebaudioside A (rebA) (n = 28) daily for 12 wk. The beverages contained 400-560 kcal/d (sucrose treatments) or <5 kcal/d (LCS treatments). Anthropometric indexes, energy intake, energy expenditure, appetite, and glucose tolerance were measured at baseline. Body weight was measured every 2 wk with energy intake, expenditure, and appetite assessed every 4 wk. Twenty-four-hour urine collections were completed every 4 wk to determine study compliance via para-aminobenzoic acid excretion. RESULTS Of the participants enrolled in the trial, 123 completed the 12-wk intervention. Sucrose and saccharin consumption led to increased body weight across the 12-wk intervention (Δweight = +1.85 ± 0.36 kg and +1.18 ± 0.36 kg, respectively; P ≤ 0.02) and did not differ from each other. There was no significant change in body weight with consumption of the other LCS treatments compared with baseline, but change in body weight for sucralose was negative and significantly lower compared with all other LCSs at week 12 (weight difference ≥ 1.37 ± 0.52 kg, P ≤ 0.008). Energy intake decreased with sucralose consumption (P = 0.02) and ingestive frequency was lower for sucralose than for saccharin (P = 0.045). Glucose tolerance was not significantly affected by any of the sweetener treatments. CONCLUSIONS Sucrose and saccharin consumption significantly increase body weight compared with aspartame, rebA, and sucralose, whereas weight change was directionally negative and lower for sucralose compared with saccharin, aspartame, and rebA consumption. LCSs should be categorized as distinct entities because of their differing effects on body weight. This trial was registered at clinicaltrials.gov as NCT02928653.
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Affiliation(s)
- Kelly A Higgins
- Departments of Food Science and Nutrition Science, Purdue University, West Lafayette, IN
| | - Richard D Mattes
- Departments of Nutrition Science, Purdue University, West Lafayette, IN
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Wiss DA, Avena N, Rada P. Sugar Addiction: From Evolution to Revolution. Front Psychiatry 2018; 9:545. [PMID: 30464748 PMCID: PMC6234835 DOI: 10.3389/fpsyt.2018.00545] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 10/12/2018] [Indexed: 12/12/2022] Open
Abstract
The obesity epidemic has been widely publicized in the media worldwide. Investigators at all levels have been looking for factors that have contributed to the development of this epidemic. Two major theories have been proposed: (1) sedentary lifestyle and (2) variety and ease of inexpensive palatable foods. In the present review, we analyze how nutrients like sugar that are often used to make foods more appealing could also lead to habituation and even in some cases addiction thereby uniquely contributing to the obesity epidemic. We review the evolutionary aspects of feeding and how they have shaped the human brain to function in "survival mode" signaling to "eat as much as you can while you can." This leads to our present understanding of how the dopaminergic system is involved in reward and its functions in hedonistic rewards, like eating of highly palatable foods, and drug addiction. We also review how other neurotransmitters, like acetylcholine, interact in the satiation processes to counteract the dopamine system. Lastly, we analyze the important question of whether there is sufficient empirical evidence of sugar addiction, discussed within the broader context of food addiction.
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Affiliation(s)
- David A. Wiss
- Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, United States
| | - Nicole Avena
- Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Pedro Rada
- School of Medicine, University of Los Andes, Mérida, Venezuela
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Medrano LC, Flores-Aguilar JF, Islas G, Rodríguez JA, Ibarra IS. Solid-Phase Extraction and Large-Volume Sample Stacking-Capillary Electrophoresis for Determination of Artificial Sweeteners in Water Samples. FOOD ANAL METHOD 2018. [DOI: 10.1007/s12161-018-1383-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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de-la-Cruz M, Millán-Aldaco D, Soriano-Nava DM, Drucker-Colín R, Murillo-Rodríguez E. The artificial sweetener Splenda intake promotes changes in expression of c-Fos and NeuN in hypothalamus and hippocampus of rats. Brain Res 2018; 1700:181-189. [PMID: 30201258 DOI: 10.1016/j.brainres.2018.09.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 08/16/2018] [Accepted: 09/04/2018] [Indexed: 12/24/2022]
Abstract
BACKGROUND Obesity is the result of the interaction of multiple variables, including the excessive increase of sugar-sweetened beverages consumption. Diets aimed to treat obesity have suggested the use of artificial sweeteners. However, recent evidence has shown several health deficits after intake of artificial sweeteners, including effects in neuronal activity. Therefore, the influence of artificial sweeteners consumption such as Splenda, on the expression of c-Fos and neuronal nuclear protein (NeuN) in hypothalamus and hippocampus remains to be determined. OBJECTIVES We investigated the effects on c-Fos or NeuN expression in hypothalamus and hippocampus of Splenda-treated rats. METHODS Splenda was diluted in water (25, 75 or 250 mg/100 mL) and orally given to rats during 2 weeks ad libitum. Next, animals were sacrificed by decapitation and brains were collected for analysis of c-Fos or NeuN immunoreactivity. RESULTS Consumption of Splenda provoked an inverted U-shaped dose-effect in c-Fos expression in ventromedial hypothalamic nucleus while similar findings were observed in dentate gyrus of hippocampus. In addition, NeuN immunoreactivity was enhanced in ventromedial hypothalamic nucleus at 25 or 75 mg/100 mL of Splenda intake whereas an opposite effect was observed at 250 mg/100 mL of artificial sweetener consumption. Lastly, NeuN positive neurons were increased in CA2/CA3 fields of hippocampus from Splenda-treated rats (25, 75 or 250 mg/100 mL). CONCLUSION Consuming Splenda induced effects in neuronal biomarkers expression. To our knowledge, this study is the first description of the impact of intake Splenda on c-Fos and NeuN immunoreactivity in hypothalamus and hippocampus in rats.
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Affiliation(s)
- Miriel de-la-Cruz
- Laboratorio de Neurociencias Moleculares e Integrativas, Escuela de Medicina, División Ciencias de la Salud, Universidad Anáhuac Mayab, Mérida, Yucatán, Mexico; Intercontinental Neuroscience Research Group
| | - Diana Millán-Aldaco
- Depto. de Neuropatología Molecular, División de Neurociencias, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Ciudad de México, México, Mexico
| | - Daniela Marcia Soriano-Nava
- Laboratorio de Neurociencias Moleculares e Integrativas, Escuela de Medicina, División Ciencias de la Salud, Universidad Anáhuac Mayab, Mérida, Yucatán, Mexico; Intercontinental Neuroscience Research Group
| | - René Drucker-Colín
- Depto. de Neuropatología Molecular, División de Neurociencias, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Ciudad de México, México, Mexico
| | - Eric Murillo-Rodríguez
- Laboratorio de Neurociencias Moleculares e Integrativas, Escuela de Medicina, División Ciencias de la Salud, Universidad Anáhuac Mayab, Mérida, Yucatán, Mexico; Intercontinental Neuroscience Research Group.
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Barrus DG, Lefever TW, Wiley JL. Evaluation of reinforcing and aversive effects of voluntary Δ 9-tetrahydrocannabinol ingestion in rats. Neuropharmacology 2018; 137:133-140. [PMID: 29758385 DOI: 10.1016/j.neuropharm.2018.04.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 04/10/2018] [Accepted: 04/19/2018] [Indexed: 01/21/2023]
Abstract
Edible cannabis-infused products are an increasingly popular method of using cannabis in the United States. Yet, preclinical research to determine mechanisms underlying abuse of Δ9-tetrahydrocannabinol (THC), the primary psychoactive constituent of cannabis, has focused primarily on the effects of parenteral administration. The purpose of this study was to examine the rewarding and aversive effects of oral THC in a novel rodent voluntary ingestion model. Adult male and female Sprague Dawley rats were given access to sucrose-sweetened solutions during daily sessions. A range of THC concentrations, each paired with a unique flavor previously tested alone, was introduced into these solutions for four-session exposure periods and drinking volumes were measured. Injected (i.p.) THC doses were also paired with unique flavors to compare the effects of route of THC administration on drinking. Introduction of THC into sucrose solutions dose-dependently decreased drinking upon initial exposure, though drinking generally increased in subsequent sessions. By contrast, i.p. THC produced sustained dose-dependent decreases in drinking in rats of both sexes. Subsequent exposure to paired flavors in the absence of THC resulted in further decreases in drinking, suggesting route-specific aversion. Additional testing using saccharin-sweetened solutions in a two-bottle choice paradigm was also conducted, with THC producing sustained dose-dependent decreases in drinking after initial exposure in rats of both sexes. Though self-administration of ingested THC was not demonstrated, evidence of route-specific THC aversion was observed, which suggests that certain routes and/or rates of THC administration may mitigate some of its aversive effects.
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Affiliation(s)
- Daniel G Barrus
- RTI International, 3040 Cornwallis Road, Research Triangle Park, NC 27709, USA
| | - Timothy W Lefever
- RTI International, 3040 Cornwallis Road, Research Triangle Park, NC 27709, USA
| | - Jenny L Wiley
- RTI International, 3040 Cornwallis Road, Research Triangle Park, NC 27709, USA.
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Wei Y, Wang G, Wang H, He J, Zhang N, Wu Z, Xiao L, Yang C. Sex-dependent impact of different degrees of maternal separation experience on OFT behavioral performances after adult chronic unpredictable mild stress exposure in rats. Physiol Behav 2018; 194:153-161. [PMID: 29723593 DOI: 10.1016/j.physbeh.2018.04.034] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 04/16/2018] [Accepted: 04/26/2018] [Indexed: 12/15/2022]
Abstract
Early-life social-environmental factors are important for normal development, and different degrees of early-life stress experience have different impacts on adult behaviors and stress responsiveness. The aim of present study was to investigate the long-term effects of different degrees of maternal separation (MS) on male and female rats and subsequent responsiveness to chronic unpredictable mild stress (CUMS) exposure in adults. Sprague-Dawley (SD) newborn pups were exposed to either 15 min/day of MS (MS15), 360 min/day of MS (MS360) or no separation (NS) during postnatal day (PND)4-PND10. At PND56, behavioral tasks, including sucrose preference test (SPT), forced swimming test (FST) and open field test (OFT), were used to explore depressive and anxiety-like behaviors. Then the rats received a series of CUMS for 28 days, behavioral tasks were recorded after CUMS. Prior to CUMS, the behavioral performances in male and female rats were consistent, MS360 led to increased immobile time in FST and decreased activity in OFT, while MS15 rats exhibited behavioral performances similar to NS group. After CUMS, sexual dimorphism was observed in the OFT behavioral responses to adult stress re-exposure, but no differences in FST were observed. CUMS male rats with MS360 experiences showed the worst behavioral performances in OFT compared to those of the other male rats groups, while CUMS female rats without MS experience showed the worst behavioral performances in OFT compared to those of the other female rats groups. Both CUMS male and female rats with MS15 experiences showed better trend in OFT performances than those of CUMS rats with MS360 experience and without MS experiences. These results suggest that brief MS experiences increase the OFT behavioral resilience of rats to adult stress re-exposure, and prolonged MS promotes OFT behavioral resilience of female rats to adult stress re-exposure, while increases vulnerability of male rats to adult stress re-exposure.
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Affiliation(s)
- Yanyan Wei
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road 238#, Wuhan 430060, Hubei, PR China
| | - Gaohua Wang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road 238#, Wuhan 430060, Hubei, PR China.
| | - Huiling Wang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road 238#, Wuhan 430060, Hubei, PR China
| | - Jing He
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road 238#, Wuhan 430060, Hubei, PR China
| | - Nan Zhang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road 238#, Wuhan 430060, Hubei, PR China
| | - Zuotian Wu
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road 238#, Wuhan 430060, Hubei, PR China
| | - Ling Xiao
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road 238#, Wuhan 430060, Hubei, PR China
| | - Can Yang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road 238#, Wuhan 430060, Hubei, PR China
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18
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Diet and physical activity as possible mediators of the association between educational attainment and body mass index gain among Australian adults. Int J Public Health 2018; 63:883-893. [PMID: 29687156 DOI: 10.1007/s00038-018-1100-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 03/19/2018] [Accepted: 04/06/2018] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVES To quantify the mediating role of leisure time physical activity (LTPA) and five dietary behaviours on educational differences in 13-year body mass index (BMI) gain across adulthood. METHODS Participants from the Melbourne Collaborative Cohort Study (4791 women; 3103 men) who maintained or gained BMI over 1990-1994 to 2003-2007 and met our inclusion criteria were selected. Education, potential mediators and confounders (age, alcohol, and smoking) were measured at baseline. We conducted sex-specific multiple mediation analyses using MacKinnon's product of coefficients method. RESULTS A higher educational attainment was associated with a 0.27 kg m-2 (95% CI 0.14, 0.39) lesser 13-year BMI gain among women only. We observed significant indirect effects of educational attainment on 13-year BMI gain through LTPA and nutrient-rich foods (each associated with a higher educational attainment and lesser 13-year BMI gain) and diet soft drink (associated with a lower educational attainment and greater 13-year BMI gain), which mediated 10, 15 and 20% of this relationship, respectively (45% in total). CONCLUSIONS Nutrient-rich foods, LTPA and diet soft drink may represent effective public health targets to reduce inequities in excess weight across adulthood.
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19
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Sweeteners as food additives in the XXI century: A review of what is known, and what is to come. Food Chem Toxicol 2017; 107:302-317. [DOI: 10.1016/j.fct.2017.06.046] [Citation(s) in RCA: 133] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 06/26/2017] [Accepted: 06/28/2017] [Indexed: 01/07/2023]
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20
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Aya-Ramos L, Contreras-Vargas C, Rico JL, Dueñas Z. Early maternal separation induces preference for sucrose and aspartame associated with increased blood glucose and hyperactivity. Food Funct 2017; 8:2592-2600. [PMID: 28686282 DOI: 10.1039/c7fo00408g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Early life stress and exposure to sweeteners lead to physiological and behavioral alterations in adulthood. Nevertheless, many genetic and environmental factors as well as the neurobiological mechanisms that contribute to the development of these disorders are not fully understood. Similarly, evidence about the long-term metabolic effects of exposure to sweeteners in early life is limited and inconsistent. This study used an animal model of maternal separation during breastfeeding (MS) to analyze the effects of early life stress on consumption of sweeteners, weight gain, blood glucose and locomotion. Rats were housed under a reversed light/dark cycle (lights off at 7:00 h) with ad libitum access to water and food. In the MS protocol, MS pups were separated from the dam for 6 h per day in two periods of 180 minutes (7:00-10:00 and 13:00-16:00 h) during the dark phase of postnatal day (PND) 1 to PND 21. Non-separated (NS) pups served as controls. On PND 22 rats were grouped by sex and treatment. From PND 26 to PND 50 sucrose and aspartame were provided to rats, and sweetener intake, body weight and blood glucose-related measures were scored. On PND 50, both male and female rats were exposed to the open field test to obtain locomotion and anxiety-related measures. Results showed that both early maternal separation and sweetener intake during adolescence resulted in increased blood glucose and hyperactivity in male rats but not in female rats. Data suggest that the combination of early stress and exposure to sucrose and aspartame could be a risk factor for the development of chronic diseases such as diabetes, as well as for behavioral alterations.
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Affiliation(s)
- L Aya-Ramos
- Universidad Nacional de Colombia, Bogotá, Facultad de Medicina, Departamento de Ciencias fisiológicas, Grupo neurobiología y comportamiento, Bogotá, D.C. 11001, Colombia.
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Szajer J, Jacobson A, Green E, Murphy C. Reduced brain response to a sweet taste in Hispanic young adults. Brain Res 2017; 1674:101-110. [PMID: 28851601 DOI: 10.1016/j.brainres.2017.08.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 08/17/2017] [Accepted: 08/22/2017] [Indexed: 12/26/2022]
Abstract
Hispanics have an increased risk for metabolic disorders, which evidence suggests may be due to interactions between lifespan biological, genetic, and lifestyle factors. Studies show the diet of many U.S. Hispanic groups have high sugar consumption, which has been shown to influence future preference for and consumption of high-sugar foods, and is associated with increased risk for insulin-related disorders and obesity. Taste is a primary determinant of food preference and selection. Differences in neural response to taste have been associated with obesity. Understanding brain response to sweet taste stimuli in healthy Hispanic adults is an important first step in characterizing the potential neural mechanisms for this behavior. We used fMRI to examine brain activation during the hedonic evaluation of sucrose as a function of ethnicity in Hispanic and non-Hispanic young adults. Taste stimuli were administered orally while subjects were scanned at 3T. Data were analyzed with AFNI via 3dROIstats and 3dMEMA, a mixed effects multi-level analysis of whole brain activation. The Hispanic group had significantly lower ROI activation in the left amygdala and significantly lower whole brain activation in regions critical for reward processing, and hedonic evaluation (e.g. frontal, orbitofrontal, and anterior cingulate cortices) than the non-Hispanic group. Differences in processing of sweet tastes have important clinical and public health implications, especially considering increased risk of metabolic syndrome and cognitive decline in Hispanic populations. Future research to better understanding relationships between health risk and brain function in Hispanic populations is warranted to better conceptualize and develop interventions for these populations.
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Affiliation(s)
- Jacquelyn Szajer
- San Diego State University/UC San Diego Joint Doctoral Program, San Diego, CA, USA
| | | | - Erin Green
- San Diego State University/UC San Diego Joint Doctoral Program, San Diego, CA, USA
| | - Claire Murphy
- San Diego State University/UC San Diego Joint Doctoral Program, San Diego, CA, USA; San Diego State University, San Diego, CA, USA; University of California, San Diego, CA, USA.
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Wiss DA, Criscitelli K, Gold M, Avena N. Preclinical evidence for the addiction potential of highly palatable foods: Current developments related to maternal influence. Appetite 2017; 115:19-27. [DOI: 10.1016/j.appet.2016.12.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 11/14/2016] [Accepted: 12/14/2016] [Indexed: 01/01/2023]
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23
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Moulin S, Seematter G, Seyssel K. Fructose use in clinical nutrition: metabolic effects and potential consequences. Curr Opin Clin Nutr Metab Care 2017; 20:272-278. [PMID: 28383298 DOI: 10.1097/mco.0000000000000376] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
PURPOSE OF REVIEW The current article presents recent findings on the metabolic effects of fructose. RECENT FINDINGS Fructose has always been considered as a simple 'caloric' hexose only metabolized by splanchnic tissues. Nevertheless, there is growing evidence that fructose acts as a second messenger and induces effects throughout the human body. SUMMARY Recent discoveries made possible with the evolution of technology have highlighted that fructose induces pleiotropic effects on different tissues. The fact that all these tissues express the specific fructose carrier GLUT5 let us reconsider that fructose is not only a caloric hexose, but could also be a potential actor of some behaviors and metabolic pathways. The physiological relevance of fructose as a metabolic driver is pertinent regarding recent scientific literature.
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Affiliation(s)
- Sandra Moulin
- aDepartment of Critical Care Medicine, Hôpital cantonal de Fribourg, Fribourg bDepartment of Anaesthesia, Hôpital Riviera-Chablais, Montreux cDepartment of Physiology, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
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