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Franco-Pérez J. Mechanisms Underlying Memory Impairment Induced by Fructose. Neuroscience 2024; 548:27-38. [PMID: 38679409 DOI: 10.1016/j.neuroscience.2024.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 03/04/2024] [Accepted: 04/03/2024] [Indexed: 05/01/2024]
Abstract
Fructose consumption has increased over the years, especially in adolescents living in urban areas. Growing evidence indicates that daily fructose consumption leads to some pathological conditions, including memory impairment. This review summarizes relevant data describing cognitive deficits after fructose intake and analyzes the underlying neurobiological mechanisms. Preclinical experiments show sex-related deficits in spatial memory; that is, while males exhibit significant imbalances in spatial processing, females seem unaffected by dietary supplementation with fructose. Recognition memory has also been evaluated; however, only female rodents show a significant decline in the novel object recognition test performance. According to mechanistic evidence, fructose intake induces neuroinflammation, mitochondrial dysfunction, and oxidative stress in the short term. Subsequently, these mechanisms can trigger other long-term effects, such as inhibition of neurogenesis, downregulation of trophic factors and receptors, weakening of synaptic plasticity, and long-term potentiation decay. Integrating all these neurobiological mechanisms will help us understand the cellular and molecular processes that trigger the memory impairment induced by fructose.
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Affiliation(s)
- Javier Franco-Pérez
- Laboratorio Patología Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía, Manuel Velasco Suárez, Insurgentes Sur 3877, Col. La Fama, C.P. 14269, CDMX, México, Mexico.
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Yamazaki M, Yamada H, Munetsuna E, Ando Y, Mizuno G, Teshigawara A, Ichikawa H, Nouchi Y, Kageyama I, Wakasugi T, Ishikawa H, Ohgami N, Suzuki K, Ohashi K. Approaches to nutritional research using organoids; fructose treatment induces epigenetic changes in liver organoids. J Nutr Biochem 2024; 131:109671. [PMID: 38768870 DOI: 10.1016/j.jnutbio.2024.109671] [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: 09/08/2023] [Revised: 05/15/2024] [Accepted: 05/15/2024] [Indexed: 05/22/2024]
Abstract
Nutritional researches have successfully used animal models to gain new insights into nutrient action. However, comprehensive descriptions of their molecular mechanisms of action remain elusive as appropriate in vitro evaluation systems are lacking. Organoid models can mimic physiological structures and reproduce in vivo functions, making them increasingly utilized in biomedical research for a better understand physiological and pathological phenomena. Therefore, organoid modeling can be a powerful approach for to understand the molecular mechanisms of nutrient action. The present study aims to demonstrate the utility of organoids in nutritional research by further investigating the molecular mechanisms responsible for the negative effects of fructose intake using liver organoids. Here, we treated liver organoids with fructose and analyzed their gene expression profiles and DNA methylation levels. Microarray analysis demonstrated that fructose-treated organoids exhibited increased selenoprotein p (Sepp1) gene expression, whereas pyrosequencing assays revealed reduced DNA methylation levels in the Sepp1 region. These results were consistent with observations using hepatic tissues from fructose-fed rats. Conversely, no differences in Sepp1 mRNA and DNA methylation levels were observed in two-dimensional cells. These results suggest that organoids serve as an ideal in vitro model to recapitulate in vivo tissue responses and help to validate the molecular mechanisms of nutrient action compared to conventional cellular models.
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Affiliation(s)
- Mirai Yamazaki
- Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Takamatsu, Japan; Department of Hygiene, Fujita Health University School of Medicine, Toyoake, Japan.
| | - Hiroya Yamada
- Department of Hygiene, Fujita Health University School of Medicine, Toyoake, Japan.
| | - Eiji Munetsuna
- Department of Animal Science and Biotechnology, Azabu University School of Veterinary Medicine, Sagamihara, Japan
| | - Yoshitaka Ando
- Department of Informative Clinical Medicine, Fujita Health University School of Medical Sciences, Toyoake, Japan
| | - Genki Mizuno
- Department of Medical Technology, Tokyo University of Technology School of Health Sciences, Ota, Japan
| | - Atsushi Teshigawara
- Department of Informative Clinical Medicine, Fujita Health University School of Medical Sciences, Toyoake, Japan; Department of Preventive Medical Sciences, Fujita Health University School of Medical Sciences, Toyoake, Japan
| | - Hayato Ichikawa
- Department of Informative Clinical Medicine, Fujita Health University School of Medical Sciences, Toyoake, Japan
| | - Yuki Nouchi
- Department of Informative Clinical Medicine, Fujita Health University School of Medical Sciences, Toyoake, Japan; Department of Preventive Medical Sciences, Fujita Health University School of Medical Sciences, Toyoake, Japan
| | - Itsuki Kageyama
- Department of Informative Clinical Medicine, Fujita Health University School of Medical Sciences, Toyoake, Japan; Department of Preventive Medical Sciences, Fujita Health University School of Medical Sciences, Toyoake, Japan
| | - Takuya Wakasugi
- Department of Hygiene, Fujita Health University School of Medicine, Toyoake, Japan
| | - Hiroaki Ishikawa
- Department of Informative Clinical Medicine, Fujita Health University School of Medical Sciences, Toyoake, Japan
| | - Nobutaka Ohgami
- Department of Hygiene, Fujita Health University School of Medicine, Toyoake, Japan
| | - Koji Suzuki
- Department of Preventive Medical Sciences, Fujita Health University School of Medical Sciences, Toyoake, Japan
| | - Koji Ohashi
- Department of Informative Clinical Medicine, Fujita Health University School of Medical Sciences, Toyoake, Japan
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Devall MA, Eaton S, Hu G, Sun X, Jakum E, Venkatesh S, Powell SM, Yoshida C, Weisenberger DJ, Cooper GS, Willis J, Ebrahim S, Zoellner J, Casey G, Li L. Potential role of fructose on human colon DNA methylation in racial disparities observed for colorectal cancer risk. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.05.31.23290777. [PMID: 37398462 PMCID: PMC10312841 DOI: 10.1101/2023.05.31.23290777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Background and aims An increasing body of observational studies has linked fructose intake to colorectal cancer (CRC). African Americans (AAs) are significantly more likely than European Americans to consume greater quantities of fructose and to develop right-side colon cancer. Yet, a mechanistic link between these two associations remains poorly defined. We aimed to identify differentially methylated regions (DMRs) associated with dietary fructose consumption measures obtained from food frequency questionnaires in a cohort of normal colon biopsies derived from AA men and women (n=79). Methods DNA methylation data from this study was obtained using the Illumina Infinium MethylationEPIC kit and is housed under accession GSE151732. DMR analysis was carried out using DMRcate in right and matched left colon, separately. Secondary analysis of CRC tumors was carried out using data derived from TCGA-COAD, GSE101764 and GSE193535. Differential expression analysis was carried out on CRC tumors from TCGA-COAD using DESeq2 . Results We identified 4,263 right-side fructose-DMRs. In contrast, only 24 DMRs survived multiple testing corrections (FDR<0.05) in matched, left colon. To identify targets by which dietary fructose drives CRC risk, we overlaid these findings with data from three CRC tumor datasets. Remarkably, almost 50% of right-side fructose-DMRs overlapped regions associated with CRC in at least one of three datasets. TNXB and CDX2 ranked among the most significant fructose risk DMRs in right and left colon respectively that also displayed altered gene expression in CRC tumors. Conclusions Our mechanistic data support the notion that fructose has a greater CRC-related effect in right than left AA colon, alluding to a potential role for fructose in contributing to racial disparities in CRC.
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Nouchi Y, Munetsuna E, Yamada H, Yamazaki M, Ando Y, Mizuno G, Ikeya M, Kageyama I, Wakasugi T, Teshigawara A, Hattori Y, Tsuboi Y, Ishikawa H, Suzuki K, Ohashi K. Maternal High-Fructose Corn Syrup Intake Impairs Corticosterone Clearance by Reducing Renal 11β-Hsd2 Activity via miR-27a-Mediated Mechanism in Rat Offspring. Nutrients 2023; 15:2122. [PMID: 37432276 DOI: 10.3390/nu15092122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/26/2023] [Accepted: 04/26/2023] [Indexed: 07/12/2023] Open
Abstract
We previously reported that maternal fructose consumption increases blood corticosterone levels in rat offspring. However, the underlying mechanism of action remains unclear. In the present study, we aimed to elucidate the molecular mechanism by which maternal high-fructose corn syrup (HFCS) intake increases circulating GC levels in rat offspring (GC; corticosterone in rodents and cortisol in humans). Female Sprague Dawley rats received HFCS solution during gestation and lactation. The male offspring were fed distilled water from weaning to 60 days of age. We investigated the activities of GC-metabolizing enzymes (11β-Hsd1 and 11β-Hsd2) in various tissues (i.e., liver, kidney, adrenal glands, muscle, and white adipose tissue) and epigenetic modification. 11β-Hsd2 activity decreased in the kidney of the HFCS-fed dams. Moreover, the epigenetic analysis suggested that miR-27a reduced Hsd11b2 mRNA expression in the kidney of offspring. Maternal HFCS-induced elevation of circulating GC levels in offspring may be explained by a decrease in 11β-Hsd2 activity via renal miR-27a expression. The present study may allow us to determine one of the mechanisms of GC elevation in rat offspring that is often observed in the developmental origins of the health and disease (DOHaD) phenomenon.
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Affiliation(s)
- Yuki Nouchi
- Department of Informative Clinical Medicine, Fujita Health University School of Medical Sciences, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake 470-1192, Japan
- Department of Preventive Medical Sciences, Fujita Health University School of Medical Sciences, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake 470-1192, Japan
| | - Eiji Munetsuna
- Department of Biochemistry, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake 470-1192, Japan
| | - Hiroya Yamada
- Department of Hygiene, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake 470-1192, Japan
| | - Mirai Yamazaki
- Department of Medical Technology, Kagawa Prefectural University of Health Sciences, 281-1 Hara, Mure-cho, Takamatsu 761-0123, Japan
| | - Yoshitaka Ando
- Department of Informative Clinical Medicine, Fujita Health University School of Medical Sciences, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake 470-1192, Japan
| | - Genki Mizuno
- Department of Medical Technology, Tokyo University of Technology School of Health Sciences, 5-23-22 Nishi-Kamata, Ota, Tokyo 144-8535, Japan
| | - Miyuki Ikeya
- Department of Informative Clinical Medicine, Fujita Health University School of Medical Sciences, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake 470-1192, Japan
| | - Itsuki Kageyama
- Department of Informative Clinical Medicine, Fujita Health University School of Medical Sciences, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake 470-1192, Japan
- Department of Preventive Medical Sciences, Fujita Health University School of Medical Sciences, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake 470-1192, Japan
| | - Takuya Wakasugi
- Department of Informative Clinical Medicine, Fujita Health University School of Medical Sciences, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake 470-1192, Japan
| | - Atsushi Teshigawara
- Department of Informative Clinical Medicine, Fujita Health University School of Medical Sciences, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake 470-1192, Japan
| | - Yuji Hattori
- Department of Preventive Medical Sciences, Fujita Health University School of Medical Sciences, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake 470-1192, Japan
| | - Yoshiki Tsuboi
- Department of Preventive Medical Sciences, Fujita Health University School of Medical Sciences, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake 470-1192, Japan
| | - Hiroaki Ishikawa
- Department of Informative Clinical Medicine, Fujita Health University School of Medical Sciences, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake 470-1192, Japan
| | - Koji Suzuki
- Department of Preventive Medical Sciences, Fujita Health University School of Medical Sciences, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake 470-1192, Japan
| | - Koji Ohashi
- Department of Informative Clinical Medicine, Fujita Health University School of Medical Sciences, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake 470-1192, Japan
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The Impact of Free Sugar on Human Health-A Narrative Review. Nutrients 2023; 15:nu15040889. [PMID: 36839247 PMCID: PMC9966020 DOI: 10.3390/nu15040889] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/05/2023] [Accepted: 02/07/2023] [Indexed: 02/12/2023] Open
Abstract
The importance of nutrition in human health has been understood for over a century. However, debate is ongoing regarding the role of added and free sugars in physiological and neurological health. In this narrative review, we have addressed several key issues around this debate and the major health conditions previously associated with sugar. We aim to determine the current evidence regarding the role of free sugars in human health, specifically obesity, diabetes, cardiovascular diseases, cognition, and mood. We also present some predominant theories on mechanisms of action. The findings suggest a negative effect of excessive added sugar consumption on human health and wellbeing. Specific class and source of carbohydrate appears to greatly influence the impact of these macronutrients on health. Further research into individual effects of carbohydrate forms in diverse populations is needed to understand the complex relationship between sugar and health.
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High-fructose corn syrup intake increases hepatic mitochondrial DNA copy number and methylation in adolescent rats. Nutr Res 2023; 110:57-65. [PMID: 36682228 DOI: 10.1016/j.nutres.2022.12.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 12/14/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022]
Abstract
High-fructose corn syrup (HFCS) is consumed worldwide. However, it has been demonstrated that an increased intake of sweetened beverages, including those sweetened using fructose, is associated with the development of childhood obesity. It is unknown why the negative effects of fructose are stronger in young persons than in elderly individuals. In recent years, mitochondria have been identified as 1 of the targets of the negative effects of fructose; they possess their own genome called mitochondrial DNA (mtDNA), which encodes genes involved in metabolic functions. We hypothesized that HFCS intake affects mtDNA in the livers of rats, and that the intensity of these effects is age-dependent. The experimental period was divided into 3 parts: childhood and adolescence (postnatal day [PD] 21-60), young adulthood (PD61-100), and adulthood (PD101-140). Rats in the different age groups were assigned to receive either water (control group [CONT]) or a 20% HFCS solution (HFCS). The hepatic mtDNA copy number of the HFCS group was higher than that of the CONT group in childhood and adolescence. In addition, the mtDNA methylation level was increased in the HFCS group in the same experimental period. No significant differences were observed between the CONT and HFCS groups during the other experimental periods. We demonstrated that HFCS has the strongest effect on mtDNA during childhood and adolescence, suggesting a need to analyze the HFCS intake of young people.
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Unravelling the Complex Relationship between Diet and Nephrolithiasis: The Role of Nutrigenomics and Nutrigenetics. Nutrients 2022; 14:nu14234961. [PMID: 36500991 PMCID: PMC9739708 DOI: 10.3390/nu14234961] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 11/14/2022] [Accepted: 11/14/2022] [Indexed: 11/24/2022] Open
Abstract
Nephrolithiasis is an increasingly prevalent condition, especially in high income countries, and is associated with high morbidity. Extraordinary progress in genetics made the identification of genetic forms of nephrolithiasis possible. These genetic diseases are usually rare and do not account for the most common forms of nephrolithiasis that are the result of several factors such as environment, dietary habits, and predisposing genes. This knowledge has shaped what we classify as nephrolithiasis, a condition that is now recognized as systemic. How and to what extent all these factors interact with one another and end in kidney stone formation, growth, and recurrence is not completely understood. Two new research fields have recently been trying to give some answers: nutrigenomics and nutrigenetics. These fields have the aim of understanding the intricate diet/genome interface that influences gene expression regulation mainly through epigenetic mechanisms and results in specific medical conditions such as cancer, metabolic syndrome, and cardiovascular diseases. Epigenetics seems to play a crucial role and could represent the link between environmental factors, that we are constantly exposed to, and risk factors for nephrolithiasis. In this systematic review, we summarize all the available evidence of proven or hypothesized epigenetic mechanisms related to nephrolithiasis.
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Nouchi Y, Munetsuna E, Yamada H, Yamazaki M, Ando Y, Mizuno G, Fujii R, Kageyama I, Wakasugi T, Sakakibara T, Teshigawara A, Ishikawa H, Shimono Y, Suzuki K, Hashimoto S, Ohashi K. Effects of High-Fructose Corn Syrup Intake on Glucocorticoid
Metabolism in Rats During Childhood, Adolescence and Adulthood. Exp Clin Endocrinol Diabetes 2022; 130:814-820. [DOI: 10.1055/a-1936-3310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractThe consumption of high-fructose corn syrup (HFCS) has been increasing in recent
decades, especially among children. Some reports suggest that children and
adolescents are more sensitive to the adverse effects of fructose intake than
adults. However, the underlying mechanism of the difference in vulnerability
between adolescence and adulthood have not yet been elucidated. In this study,
we attempted to elucidate the different effects of HFCS intake at different
growth stages in rats: childhood and adolescence (postnatal day (PD)
21–60), young adulthood (PD60–100), and adulthood
(PD100–140). Since alterations in hepatic glucocorticoid (GC) metabolism
can cause diseases including insulin resistance, we focused on GC metabolizing
enzymes such as 11 beta-hydroxysteroid dehydrogenase 1 and 2 (Hsd11b1 and
Hsd11b2) and steroid 5 alpha-reductase 1 (Srd5a1). Western blotting showed an
increase in Hsd11b1 expression and a decrease in Hsd11b2 expression in childhood
and adolescence but not in adulthood. We also observed changes in Hsd11b1 and
Hsd11b2 activities only in childhood and adolescence, consistent with the
results of mRNA and protein expression analysis. The effect of high-fructose
intake with regards to GC metabolism may therefore vary with developmental
stage. This study provides insight into the adverse effects of fructose on GC
metabolism in children in the context of increasing rates of HFCS
consumption.
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Affiliation(s)
- Yuki Nouchi
- Department of Informative Clinical Medicine, Fujita Health University
School of Medical Sciences, Toyoake, Aichi, Japan
- Department of Preventive Medical Sciences, Fujita Health University
School of Medical Sciences, Toyoake, Aichi, Japan
| | - Eiji Munetsuna
- Department of Biochemistry, Fujita Health University School of
Medicine, Toyoake, Aichi, Japan
| | - Hiroya Yamada
- Department of Hygiene, Fujita Health University School of Medicine,
Toyoake, Aichi, Japan
| | - Mirai Yamazaki
- Department of Medical Technology, Kagawa Prefectural University of
Health Sciences, Takamatsu, Kagawa, Japan
| | - Yoshitaka Ando
- Department of Informative Clinical Medicine, Fujita Health University
School of Medical Sciences, Toyoake, Aichi, Japan
| | - Genki Mizuno
- Department of Informative Clinical Medicine, Fujita Health University
School of Medical Sciences, Toyoake, Aichi, Japan
- Department of Preventive Medical Sciences, Fujita Health University
School of Medical Sciences, Toyoake, Aichi, Japan
| | - Ryosuke Fujii
- Department of Preventive Medical Sciences, Fujita Health University
School of Medical Sciences, Toyoake, Aichi, Japan
| | - Itsuki Kageyama
- Department of Informative Clinical Medicine, Fujita Health University
School of Medical Sciences, Toyoake, Aichi, Japan
- Department of Preventive Medical Sciences, Fujita Health University
School of Medical Sciences, Toyoake, Aichi, Japan
| | - Takuya Wakasugi
- Department of Informative Clinical Medicine, Fujita Health University
School of Medical Sciences, Toyoake, Aichi, Japan
| | - Tomohide Sakakibara
- Department of Informative Clinical Medicine, Fujita Health University
School of Medical Sciences, Toyoake, Aichi, Japan
| | - Atsushi Teshigawara
- Department of Informative Clinical Medicine, Fujita Health University
School of Medical Sciences, Toyoake, Aichi, Japan
| | - Hiroaki Ishikawa
- Department of Informative Clinical Medicine, Fujita Health University
School of Medical Sciences, Toyoake, Aichi, Japan
| | - Yohei Shimono
- Department of Biochemistry, Fujita Health University School of
Medicine, Toyoake, Aichi, Japan
| | - Koji Suzuki
- Department of Preventive Medical Sciences, Fujita Health University
School of Medical Sciences, Toyoake, Aichi, Japan
| | - Shuji Hashimoto
- Department of Hygiene, Fujita Health University School of Medicine,
Toyoake, Aichi, Japan
| | - Koji Ohashi
- Department of Informative Clinical Medicine, Fujita Health University
School of Medical Sciences, Toyoake, Aichi, Japan
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