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Zhu AQ, Luo N, Zhou XT, Yuan M, Zhang CM, Pan TL, Li KP. Transcriptomic insights into the lipotoxicity of high-fat high-fructose diet in rat and mouse. J Nutr Biochem 2024; 128:109626. [PMID: 38527560 DOI: 10.1016/j.jnutbio.2024.109626] [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: 09/05/2023] [Revised: 02/23/2024] [Accepted: 03/21/2024] [Indexed: 03/27/2024]
Abstract
Along with the increasing prevalence of obesity worldwide, the deleterious effects of high-calorie diet are gradually recognized through more and more epidemiological studies. However, the concealed and chronic causality whitewashes its unhealthy character. Given an ingenious mechanism orchestrates the metabolic adaptation to high-fat high-fructose (HFF) diet and connive its lipotoxicity, in this study, an experimental rat/mouse model of obesity was induced and a comparative transcriptomic analysis was performed to probe the mystery. Our results demonstrated that HFF diet consumption altered the transcriptomic pattern as well as different high-calorie diet fed rat/mouse manifested distinct hepatic transcriptome. Validation with RT-qPCR and Western blotting confirmed that SREBP1-FASN involved in de novo lipogenesis partly mediated metabolic self-adaption. Moreover, hepatic ACSL1-CPT1A-CPT2 pathway involved in fatty acids β-oxidation, played a key role in the metabolic adaption to HFF. Collectively, our findings enrich the knowledge of the chronic adaptation mechanisms and also shed light on future investigations. Meanwhile, our results also suggest that efforts to restore the fatty acids metabolic fate could be a promising avenue to fight against obesity and associated steatosis and insulin resistance challenged by HFF diet.
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Affiliation(s)
- An-Qi Zhu
- Institute of Chinese Medicinal Sciences, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China
| | - Ning Luo
- Institute of Chinese Medicinal Sciences, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China
| | - Xiao-Ting Zhou
- Institute of Chinese Medicinal Sciences, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China
| | - Min Yuan
- Institute of Chinese Medicinal Sciences, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China
| | - Chu-Mei Zhang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China
| | - Tian-Ling Pan
- Institute of Chinese Medicinal Sciences, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China
| | - Kun-Ping Li
- Institute of Chinese Medicinal Sciences, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China.; Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China.
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2
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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 2024:109671. [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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3
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Ma X, Liu Y, Han F, Cheng T, Wang K, Xu Y. Effect of short-term moderate intake of ice wine on hepatic glycolipid metabolism in C57BL/6J mice. Food Funct 2024; 15:5063-5072. [PMID: 38656306 DOI: 10.1039/d3fo05665a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
As the correlation between high fructose intake and metabolism-related diseases (e.g., obesity, fatty liver, and type 2 diabetes) has been increasingly reported, the health benefits of consuming ice wine high in fructose have been called into question. In this study, 6-week-old male C57BL/6J mice were divided into control (pure water), fructose (130 g L-1 fructose solution), alcohol (11% alcohol solution), low-dose (50% diluted ice wine) and high-dose ice wine (100% ice wine) groups to investigate the effects and mechanisms of short-term (4 weeks) ice wine intake on hepatic glycolipid metabolism in mice. The results showed that short-term consumption of ice wine suppressed the elevation of low-density lipoprotein cholesterol content and did not cause hepatic lipid accumulation compared with those of the fructose group. Meanwhile, ice wine had no significant effect on lipogenesis although it inhibited fatty acid oxidation via the PPARα/CPT-1α pathway. Compared with the control group, ice wine interfered with the elevation of fasting glucose and the insulin resistance index in a dose-dependent manner, and led to an increase in plasma uric acid levels, which may further contribute to the disruption of glucolipid metabolism. Overall, short-term moderate intake of ice wine over a 4-week period may not significantly affect hepatic glycolipid metabolism in C57BL/6J mice for the time being.
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Affiliation(s)
- Xinyuan Ma
- College of Enology, Northwest A&F University, Yangling 712100, China.
| | - Yang Liu
- College of Enology, Northwest A&F University, Yangling 712100, China.
| | - Fuliang Han
- College of Enology, Northwest A&F University, Yangling 712100, China.
- Shaanxi Engineering Research Center for Viti-Viniculture, Northwest A&F University, Yangling 712100, China
- Heyang Experimental Demonstration Station, Northwest A&F University, Weinan 715300, China
- Ningxia Helan Mountain's East Foothill Wine Experiment and Demonstration Station, Northwest A&F University, Yongning 750104, China
| | - Tiantian Cheng
- College of Enology, Northwest A&F University, Yangling 712100, China.
| | - Kaixian Wang
- College of Enology, Northwest A&F University, Yangling 712100, China.
| | - Yiwen Xu
- College of Enology, Northwest A&F University, Yangling 712100, China.
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Xu Z, Hileuskaya K, Kraskouski A, Yang Y, Huang Z, Zhao Z. Inhibition of α-glucosidase activity and intestinal glucose transport to assess the in vivo anti-hyperglycemic potential of dodecyl-acylated phlorizin and polydatin derivatives. Food Funct 2024; 15:4785-4804. [PMID: 38511466 DOI: 10.1039/d3fo05233h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
A diet containing natural active compounds that can inhibit the hydrolytic activity of α-glucosidase on carbohydrates and intestinal glucose absorption is an effective means of controlling postprandial hyperglycemia. Phlorizin and polydatin as phenolic glycosides have a high affinity for the catalytic site of α-glucosidase, but exhibited unsatisfactory competitive inhibitory capacity, with an IC50 of 0.97 and >2 mM, respectively. However, dodecyl-acylated derivatives of phlorizin and polydatin exerted α-glucosidase inhibitory capacity, with an IC50 of 55.10 and 70.95 μM, respectively, which were greatly enhanced and much stronger than that of acarbose with an IC50 of 2.46 mM. The SPR assay suggested the high affinity of dodecyl phlorizin and dodecyl polydatin to α-glucosidase with equilibrium dissociation constant (KD) values of 12.0 and 7.9 μM, respectively. Both dodecyl phlorizin and dodecyl polydatin reduced the catalytic ability of α-glucosidase by reversible noncompetitive and uncompetitive mixed inhibition, which bind noncovalently to the allosteric site 2 through hydrogen bonds and hydrophobic interactions, thereby inducing the secondary structure unfolding and intrinsic fluorescence quenching of α-glucosidase. Confocal microscopy detection visually showed significant inhibitory effects on FITC-labeled glucose uptake in intestinal Caco-2 cells by phlorizin, polydatin, dodecyl phlorizin and dodecyl polydatin. In addition, based on the differentiated Caco-2 cell monolayer model, dodecyl phlorizin and dodecyl polydatin suppressed intestinal glucose transport more effectively than phlorizin and polydatin, suggesting that they were promising in vivo hypoglycemic active compounds.
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Affiliation(s)
- Zhengming Xu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Kseniya Hileuskaya
- Institute of Chemistry of New Materials, National Academy of Sciences of Belarus, Minsk, Belarus
| | - Aliaksandr Kraskouski
- Institute of Chemistry of New Materials, National Academy of Sciences of Belarus, Minsk, Belarus
| | - Yujiao Yang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Zhe Huang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Zhengang Zhao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China.
- Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China
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Hidaka M, Oshima Y, Hanai Y, Kataoka H, Hattori H. Effects of Excessive High-fructose Corn Syrup Drink Intake in Middle-aged Mice. In Vivo 2024; 38:1152-1161. [PMID: 38688615 PMCID: PMC11059877 DOI: 10.21873/invivo.13550] [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: 12/01/2023] [Revised: 01/07/2024] [Accepted: 01/17/2024] [Indexed: 05/02/2024]
Abstract
BACKGROUND/AIM The global prevalence of type 2 diabetes (T2D) continues to increase, necessitating the need for understanding the causes of its development. The widespread use of high-fructose corn syrup (HFCS) in drinks and diets is suspected to play a role in metabolic disorders. Although many studies have reported on the effects of excessive HFCS and excessive energy intakes in middle-aged individuals, few have focused on energy restriction. This study aimed to investigate the effects of excessive HFCS drink intake under energy restriction on developing T2D in early middle-aged mice. MATERIALS AND METHODS Early middle-aged mice were divided in HFCS and control groups; they were provided either 10% HFCS water or deionized water ad libitum for 12 weeks, respectively. Total energy intake was controlled using a standard rodent diet. Oral glucose tolerance test (OGTT), insulin tolerance test (ITT), tissue weight measurements, serum parameter analyses, and mRNA expression assessments were performed. RESULTS No increase in body and adipose tissue weight was observed with excessive HFCS intake under energy restriction. Moreover, serum lipid parameters did not differ from those of controls. However, in the OGTT and ITT, the HFCS group showed higher blood glucose levels than the control group. Moreover, the pancreatic weight and insulin II mRNA expression were reduced. CONCLUSION The excessive HFCS drink intake under energy restriction did not induce obesity; however, it induced impaired glucose tolerance, indicating its negative effects on the pancreas in early middle-aged mice. When translated in human physiology, our results show that even if one does not become obese, excessive HFCS may affect the overall metabolic mechanism; these effects may vary depending on age.
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Affiliation(s)
- Mei Hidaka
- Department of Biochemistry and Applied Biosciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - Yuto Oshima
- Department of Biochemistry and Applied Biosciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - Yuma Hanai
- Department of Biochemistry and Applied Biosciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - Hiroaki Kataoka
- Oncopathology and Regenerative Biology Section, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Hidemi Hattori
- Department of Biochemistry and Applied Biosciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan;
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Sánchez-Terrón G, Martínez R, Morcuende D, Caballero V, Estévez M. Pomegranate supplementation alleviates dyslipidemia and the onset of non-alcoholic fatty liver disease in Wistar rats by shifting microbiota and producing urolithin-like microbial metabolites. Food Funct 2024. [PMID: 38661445 DOI: 10.1039/d4fo00688g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Non-alcoholic fatty liver disease (NAFLD), obesity and related chronic diseases are major non-communicable diseases with high mortality rates worldwide. While dietary sugars are known to be responsible for insulin resistance and metabolic syndrome (MetS), the underlying pathophysiological effects of sustained fructose consumption require further elucidation. We hypothesize that certain bioactive compounds (i.e. punicalagin and ellagic acid) from dietary pomegranate could counteract the harmful effects of sustained fructose consumption in terms of obesity and liver damage. The present study aimed to elucidate both the molecular mechanisms involved in the pathophysiology associated with fructose intake and the effect of a punicalagin-rich commercial pomegranate dietary supplement (P) used as a nutritional strategy to alleviate fructose-induced metabolic impairments. Thus, nineteen Wistar rats fed on a basal commercial feed were supplemented with either 30% (w/v) fructose in drinking water (F; n = 7) or 30% (w/v) fructose solution plus 0.2% (w/v) P (F + P; n = 6) for 10 weeks. The results were compared to those from a control group fed on the basal diet and provided with drinking water (C; n = 6). Body weight and energy intake were registered weekly. P supplementation decreased fat depots, counteracted the dyslipidemia caused by F and improved markers of liver injury including steatosis. The study of the microbiota by metagenomics and urine by untargeted MS-based metabolomics revealed microbial metabolites from P that may be responsible for these health benefits.
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Affiliation(s)
- Guadalupe Sánchez-Terrón
- TECAL Research Group, Meat and Meat Products Research Institute (IPROCAR), Universidad de Extremadura (UEX, ROR-ID 0174shg90), Cáceres, 10003, Spain.
| | - Remigio Martínez
- Animal Health Department, Animal Health and Zoonoses Research Group (GISAZ), UIC Zoonosis and Emergent Diseases (ENZOEM Competitive Research Unit), Universidad of Córdoba (UCO, ROR-ID 05yc77b46), Córdoba, 14014, Spain
| | - David Morcuende
- TECAL Research Group, Meat and Meat Products Research Institute (IPROCAR), Universidad de Extremadura (UEX, ROR-ID 0174shg90), Cáceres, 10003, Spain.
| | - Víctor Caballero
- TECAL Research Group, Meat and Meat Products Research Institute (IPROCAR), Universidad de Extremadura (UEX, ROR-ID 0174shg90), Cáceres, 10003, Spain.
| | - Mario Estévez
- TECAL Research Group, Meat and Meat Products Research Institute (IPROCAR), Universidad de Extremadura (UEX, ROR-ID 0174shg90), Cáceres, 10003, Spain.
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7
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Ting KKY. Fructose-induced metabolic reprogramming of cancer cells. Front Immunol 2024; 15:1375461. [PMID: 38711514 PMCID: PMC11070519 DOI: 10.3389/fimmu.2024.1375461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 04/10/2024] [Indexed: 05/08/2024] Open
Abstract
Excess dietary fructose consumption has been long proposed as a culprit for the world-wide increase of incidence in metabolic disorders and cancer within the past decades. Understanding that cancer cells can gradually accumulate metabolic mutations in the tumor microenvironment, where glucose is often depleted, this raises the possibility that fructose can be utilized by cancer cells as an alternative source of carbon. Indeed, recent research has increasingly identified various mechanisms that show how cancer cells can metabolize fructose to support their proliferating and migrating needs. In light of this growing interest, this review will summarize the recent advances in understanding how fructose can metabolically reprogram different types of cancer cells, as well as how these metabolic adaptations can positively support cancer cells development and malignancy.
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Affiliation(s)
- Kenneth K. Y. Ting
- Department of Immunology, University of Toronto, Toronto, ON, Canada
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada
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Zhang L, Yu S, Guan Y, Wang D, Yang J, Li J, Zhao W, Zhang F. Dual intervention on the gut and skin microbiota attenuates facial cutaneous aging. Food Funct 2024; 15:4246-4261. [PMID: 38526064 DOI: 10.1039/d3fo05473j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
The gut and skin microbiota are microbial barriers, resisting harmful foreign microorganisms and maintaining internal homeostasis. Dysbiosis of the gut and skin microbiota is involved in aging progression. However, interventions targeting facial skin wellness taking into account the gut-skin axis are scarce. In this study, the impact of an eight-week intervention with oral (O), topical (T), and both oral and topical (OT) xylo-oligosaccharides (XOS) by regulating gut and skin microbiota on facial cutaneous aging was investigated in a double-blind placebo-controlled trial in females. An increase in the proportion of participants with skin rejuvenation was observed, along with a significant reduction in facial pores after OT intervention. The reduction of cutaneous Cutibacterium by OT intervention was greater than that in the O and T groups. These interventions can change the skin microbial structure. Intestinal Bifidobacterium was enriched only by dual treatment with oral and topical XOS. Function prediction analysis revealed a decrease in K02770 encoding fructose-1-phosphate kinase involved in de novo lipid synthesis from fructose with dual intervention, suggesting that inhibition of lipophilic Cutibacterium may contribute to reducing facial pores. Overall, the dual XOS intervention approach is most effective for improving both gut and skin microbiota, as well as facial skin aging.
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Affiliation(s)
- Liujing Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.
| | - Shun Yu
- Department of Plastic Surgery, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Yin Guan
- Huishan Community Health Service Center, Health Commission of Liangxi District, Wuxi, China
| | - Dan Wang
- Department of Plastic Surgery, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Ju Yang
- Department of Nutrition, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Jingling Li
- Department of Plastic Surgery, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Wei Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.
| | - Feng Zhang
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China.
- Department of Nutrition, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
- Functional Food Clinical Evaluation Center, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
- School of Bioengineering, Jiangnan University, Wuxi, Jiangsu, China
- School of Environment and Civil Engineering, Jiangnan University, Wuxi, Jiangsu, China
- Chinese Society of Nutritional Oncology, Beijing, China
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Gan Q, Song G, Fang W, Wang Y, Qi W. Fructose dose-dependently influences colon barrier function by regulation of some main physical, immune, and biological factors in rats. J Nutr Biochem 2024; 126:109582. [PMID: 38242179 DOI: 10.1016/j.jnutbio.2024.109582] [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: 07/12/2023] [Revised: 01/05/2024] [Accepted: 01/13/2024] [Indexed: 01/21/2024]
Abstract
Little is known about the effects of fructose on colonic function. Here, forty-eight 7-week-old male SD rats were randomly divided into four groups and given 0, 7.5%, 12.75%, and 35% fructose in diet for 8 weeks respectively to investigate the regulatory influence of fructose on colonic barrier function. The exact amount of fructose intake was tracked and recorded. We showed that fructose affects colonic barrier function in a dose-dependent manner. High-fructose at a dose of 1.69±0.23 g/kg/day could damage the physical barrier function of the colon by down-regulating expression of tight junction proteins (ZO-1 and occludin) and mucus layer biomarkers (MUC2 and TFF3). High fructose reduced sIgA and the anti-inflammatory cytokine (IL-10), induced abdominal fat accumulation and pro-inflammatory cytokines (IL-6 and IL-8), leading to colon inflammation and immune barrier dysfunction. In addition, high-fructose altered the biological barrier of the colon by decreasing the abundance of Blautia, Ruminococcus, and Lactobacillius, and increasing the abundance of Allobaculum at the genus level, leading to a reduction in short-chain fatty acids (SCFAs), amino acids, and carbohydrates, etc. Low fructose at a dose of 0.31±0.05 g/kg/day showed no adverse effects on the colonic barrier. The ability of fructose to affect the colonic barrier through physical, immune, and biological pathways provides additional insight into the intestinal disorders caused by high-fructose diets.
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Affiliation(s)
- Qianyun Gan
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China;; Academy of National Food and Strategic Reserves Administration, Beijing, China
| | - Ge Song
- Academy of National Food and Strategic Reserves Administration, Beijing, China
| | - Wei Fang
- Academy of National Food and Strategic Reserves Administration, Beijing, China
| | - Yong Wang
- Academy of National Food and Strategic Reserves Administration, Beijing, China
| | - Wentao Qi
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China;; Academy of National Food and Strategic Reserves Administration, Beijing, China.
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10
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Ting KKY. Fructose overconsumption-induced reprogramming of microglia metabolism and function. Front Immunol 2024; 15:1375453. [PMID: 38596671 PMCID: PMC11002174 DOI: 10.3389/fimmu.2024.1375453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 03/18/2024] [Indexed: 04/11/2024] Open
Abstract
The overconsumption of dietary fructose has been proposed as a major culprit for the rise of many metabolic diseases in recent years, yet the relationship between a high fructose diet and neurological dysfunction remains to be explored. Although fructose metabolism mainly takes place in the liver and intestine, recent studies have shown that a hyperglycemic condition could induce fructose metabolism in the brain. Notably, microglia, which are tissue-resident macrophages (Mφs) that confer innate immunity in the brain, also express fructose transporters (GLUT5) and are capable of utilizing fructose as a carbon fuel. Together, these studies suggest the possibility that a high fructose diet can regulate the activation and inflammatory response of microglia by metabolic reprogramming, thereby altering the susceptibility of developing neurological dysfunction. In this review, the recent advances in the understanding of microglia metabolism and how it supports its functions will be summarized. The results from both in vivo and in vitro studies that have investigated the mechanistic link between fructose-induced metabolic reprogramming of microglia and its function will then be reviewed. Finally, areas of controversies and their associated implications, as well as directions that warrant future research will be highlighted.
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Affiliation(s)
- Kenneth K. Y. Ting
- Department of Immunology, University of Toronto, Toronto, ON, Canada
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada
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11
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Azevedo-Martins AK, Santos MP, Abayomi J, Ferreira NJR, Evangelista FS. The Impact of Excessive Fructose Intake on Adipose Tissue and the Development of Childhood Obesity. Nutrients 2024; 16:939. [PMID: 38612973 PMCID: PMC11013923 DOI: 10.3390/nu16070939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/16/2024] [Accepted: 01/19/2024] [Indexed: 04/14/2024] Open
Abstract
Worldwide, childhood obesity cases continue to rise, and its prevalence is known to increase the risk of non-communicable diseases typically found in adults, such as cardiovascular disease and type 2 diabetes mellitus. Thus, comprehending its multiple causes to build healthier approaches and revert this scenario is urgent. Obesity development is strongly associated with high fructose intake since the excessive consumption of this highly lipogenic sugar leads to white fat accumulation and causes white adipose tissue (WAT) inflammation, oxidative stress, and dysregulated adipokine release. Unfortunately, the global consumption of fructose has increased dramatically in recent years, which is associated with the fact that fructose is not always evident to consumers, as it is commonly added as a sweetener in food and sugar-sweetened beverages (SSB). Therefore, here, we discuss the impact of excessive fructose intake on adipose tissue biology, its contribution to childhood obesity, and current strategies for reducing high fructose and/or free sugar intake. To achieve such reductions, we conclude that it is important that the population has access to reliable information about food ingredients via food labels. Consumers also need scientific education to understand potential health risks to themselves and their children.
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Affiliation(s)
- Anna Karenina Azevedo-Martins
- Group of Study in Endocrinology and Metabolism, School of Arts, Sciences and Humanities, University of São Paulo, São Paulo 03828-000, Brazil; (M.P.S.); (N.J.R.F.); (F.S.E.)
| | - Matheus Pedro Santos
- Group of Study in Endocrinology and Metabolism, School of Arts, Sciences and Humanities, University of São Paulo, São Paulo 03828-000, Brazil; (M.P.S.); (N.J.R.F.); (F.S.E.)
| | - Julie Abayomi
- School of Medicine and Nutrition, Faculty of Health, Social Care and Medicine, Edge Hill University, Ormskirk L39 4QP, UK;
| | - Natália Juliana Ramos Ferreira
- Group of Study in Endocrinology and Metabolism, School of Arts, Sciences and Humanities, University of São Paulo, São Paulo 03828-000, Brazil; (M.P.S.); (N.J.R.F.); (F.S.E.)
| | - Fabiana S. Evangelista
- Group of Study in Endocrinology and Metabolism, School of Arts, Sciences and Humanities, University of São Paulo, São Paulo 03828-000, Brazil; (M.P.S.); (N.J.R.F.); (F.S.E.)
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12
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Tero-Vescan A, Ștefănescu R, Istrate TI, Pușcaș A. Fructose-induced hyperuricaemia - protection factor or oxidative stress promoter? Nat Prod Res 2024:1-13. [PMID: 38522076 DOI: 10.1080/14786419.2024.2327624] [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: 11/08/2023] [Accepted: 02/28/2024] [Indexed: 03/26/2024]
Abstract
Accumulating evidence suggests that dietary fructose may play a role in the hyperuricaemia development, but the precise mechanism remains unclear. Hyperuricaemia is characterised by excessive production and deposition of urate crystals, and the metabolism of fructose has been implicated in the elevation of serum urate levels. The association between fructose intake and the risk of hyperuricaemia is explained by the metabolism of fructose in the liver, small intestine, and kidney. Many studies have confirmed the correlation between fructose consumption and an increased risk of developing hyperuricaemia, but more prospective studies to fully elucidate the role of fructose intake in the pathogenesis of hyperuricaemia are needed. It is important to note that maintaining a balanced diet, and lifestyle is crucial when considering fructose intake. Limiting the consumption of products high in added sugars and maintaining a healthy weight can contribute to reducing the risk of hyperuricaemia and associated health complications.
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Affiliation(s)
- Amelia Tero-Vescan
- Medical Chemistry and Biochemistry Department, Faculty of Medicine in English, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, Hamburg, Germany
| | - Ruxandra Ștefănescu
- Department of Pharmacognosy and Phytotherapy, Faculty of Pharmacy, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, Târgu Mures, Romania
| | - Tudor-Ionuț Istrate
- Faculty of Medicine, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Târgu Mures, Târgu Mures, Romania
| | - Amalia Pușcaș
- Biochemistry and Chemistry of the Environmental Factors Department, Faculty of Pharmacy, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Târgu Mures, Târgu Mures, Romania
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13
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Glendinning JI, Drimmer Z, Isber R. Individual differences in cephalic-phase insulin response are stable over time and predict glucose tolerance in mice. Physiol Behav 2024; 276:114476. [PMID: 38280461 DOI: 10.1016/j.physbeh.2024.114476] [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: 11/28/2023] [Revised: 01/11/2024] [Accepted: 01/23/2024] [Indexed: 01/29/2024]
Abstract
Oral stimulation by glucose triggers a rapid insulin response, which enhances glucose tolerance. This so-called cephalic-phase insulin response (CPIR) has been documented in many mammal species, but its functional properties are poorly characterized. Here, we studied CPIR in lean C57BL/6 mice. Experiment 1 asked whether the large individual differences in CPIR magnitude were real or reflected experimental noise. We measured CPIR magnitude four times across a period of 30 days in the same mice. The individual differences in CPIR magnitude were remarkably stable across the repeated trials, indicating that they were real. Experiment 2 examined the functional consequences of individual differences in CPIR magnitude. We found that higher CPIR magnitudes contributed to larger postprandial insulin responses and greater glucose tolerance. Experiment 3 examined the observation that the CPIRs in Experiments 1 and 2 were associated with a rapid rise in blood glucose. To determine whether the rapid rise in blood glucose caused the CPIRs, we asked whether mice would generate a CPIR if we prevented cephalic-phase stimulation of beta cells by either delivering the glucose intragastrically or blocking parasympathetic input to the pancreatic beta cells with atropine. The mice subjected to these treatments experienced a rapid rise in blood glucose, but they did not exhibit a CPIR. This indicates that it was the oral glucose stimulation, and not the rise in blood glucose, that triggered the CPIRs in Experiments 1 and 2. We conclude that (i) individual differences in CPIR magnitude are stable over time; (ii) CPIR magnitudes predicted postprandial insulin responses and glucose tolerance; and (iii) a rapid rise in blood glucose is not sufficient to trigger a CPIR in mice.
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Affiliation(s)
- John I Glendinning
- Departments of Biology, Barnard College, Columbia University, 3009 Broadway, New York, NY 10027, USA; Neuroscience & Behavior, Barnard College, Columbia University, 3009 Broadway, New York, NY 10027, USA.
| | - Zoee Drimmer
- Departments of Biology, Barnard College, Columbia University, 3009 Broadway, New York, NY 10027, USA
| | - Rayna Isber
- Departments of Biology, Barnard College, Columbia University, 3009 Broadway, New York, NY 10027, USA
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14
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Diwan R, Gaytan SL, Bhatt HN, Pena-Zacarias J, Nurunnabi M. Liver fibrosis pathologies and potentials of RNA based therapeutics modalities. Drug Deliv Transl Res 2024:10.1007/s13346-024-01551-8. [PMID: 38446352 DOI: 10.1007/s13346-024-01551-8] [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] [Accepted: 02/14/2024] [Indexed: 03/07/2024]
Abstract
Liver fibrosis (LF) occurs when the liver tissue responds to injury or inflammation by producing excessive amounts of scar tissue, known as the extracellular matrix. This buildup stiffens the liver tissue, hinders blood flow, and ultimately impairs liver function. Various factors can trigger this process, including bloodborne pathogens, genetic predisposition, alcohol abuse, non-steroidal anti-inflammatory drugs, non-alcoholic steatohepatitis, and non-alcoholic fatty liver disease. While some existing small-molecule therapies offer limited benefits, there is a pressing need for more effective treatments that can truly cure LF. RNA therapeutics have emerged as a promising approach, as they can potentially downregulate cytokine levels in cells responsible for liver fibrosis. Researchers are actively exploring various RNA-based therapeutics, such as mRNA, siRNA, miRNA, lncRNA, and oligonucleotides, to assess their efficacy in animal models. Furthermore, targeted drug delivery systems hold immense potential in this field. By utilizing lipid nanoparticles, exosomes, nanocomplexes, micelles, and polymeric nanoparticles, researchers aim to deliver therapeutic agents directly to specific biomarkers or cytokines within the fibrotic liver, increasing their effectiveness and reducing side effects. In conclusion, this review highlights the complex nature of liver fibrosis, its underlying causes, and the promising potential of RNA-based therapeutics and targeted delivery systems. Continued research in these areas could lead to the development of more effective and personalized treatment options for LF patients.
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Affiliation(s)
- Rimpy Diwan
- Department of Pharmaceutical Sciences, School of Pharmacy, The University of Texas El Paso, El Paso, TX, 79902, USA
- Department of Biomedical Engineering, College of Engineering, The University of Texas El Paso, El Paso, TX, 79968, USA
| | - Samantha Lynn Gaytan
- Department of Pharmaceutical Sciences, School of Pharmacy, The University of Texas El Paso, El Paso, TX, 79902, USA
- Department of Interdisciplinary Health Sciences, College of Health Sciences, The University of Texas El Paso, El Paso, Texas, 79968, USA
| | - Himanshu Narendrakumar Bhatt
- Department of Pharmaceutical Sciences, School of Pharmacy, The University of Texas El Paso, El Paso, TX, 79902, USA
- Department of Biomedical Engineering, College of Engineering, The University of Texas El Paso, El Paso, TX, 79968, USA
| | - Jacqueline Pena-Zacarias
- Department of Pharmaceutical Sciences, School of Pharmacy, The University of Texas El Paso, El Paso, TX, 79902, USA
- Department of Biological Sciences, College of Science, The University of Texas El Paso, El Paso, Texas, 79968, USA
| | - Md Nurunnabi
- Department of Pharmaceutical Sciences, School of Pharmacy, The University of Texas El Paso, El Paso, TX, 79902, USA.
- Department of Biomedical Engineering, College of Engineering, The University of Texas El Paso, El Paso, TX, 79968, USA.
- Department of Interdisciplinary Health Sciences, College of Health Sciences, The University of Texas El Paso, El Paso, Texas, 79968, USA.
- Border Biomedical Research Center, The University of Texas El Paso, El Paso, TX, 79968, USA.
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15
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Menyhárt O, Győrffy B. Dietary approaches for exploiting metabolic vulnerabilities in cancer. Biochim Biophys Acta Rev Cancer 2024; 1879:189062. [PMID: 38158024 DOI: 10.1016/j.bbcan.2023.189062] [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: 06/20/2023] [Revised: 12/20/2023] [Accepted: 12/20/2023] [Indexed: 01/03/2024]
Abstract
Renewed interest in tumor metabolism sparked an enthusiasm for dietary interventions to prevent and treat cancer. Changes in diet impact circulating nutrient levels in the plasma and the tumor microenvironment, and preclinical studies suggest that dietary approaches, including caloric and nutrient restrictions, can modulate tumor initiation, progression, and metastasis. Cancers are heterogeneous in their metabolic dependencies and preferred energy sources and can be addicted to glucose, fructose, amino acids, or lipids for survival and growth. This dependence is influenced by tumor type, anatomical location, tissue of origin, aberrant signaling, and the microenvironment. This review summarizes nutrient dependencies and the related signaling pathway activations that provide targets for nutritional interventions. We examine popular dietary approaches used as adjuvants to anticancer therapies, encompassing caloric restrictions, including time-restricted feeding, intermittent fasting, fasting-mimicking diets (FMDs), and nutrient restrictions, notably the ketogenic diet. Despite promising results, much of the knowledge on dietary restrictions comes from in vitro and animal studies, which may not accurately reflect real-life situations. Further research is needed to determine the optimal duration, timing, safety, and efficacy of dietary restrictions for different cancers and treatments. In addition, well-designed human trials are necessary to establish the link between specific metabolic vulnerabilities and targeted dietary interventions. However, low patient compliance in clinical trials remains a significant challenge.
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Affiliation(s)
- Otília Menyhárt
- Semmelweis University, Department of Bioinformatics, Tűzoltó u. 7-9, H-1094 Budapest, Hungary; Research Centre for Natural Sciences, Cancer Biomarker Research Group, Institute of Enzymology, Magyar tudósok krt. 2, H-1117 Budapest, Hungary; National Laboratory for Drug Research and Development, Magyar tudósok krt. 2, H-1117 Budapest, Hungary
| | - Balázs Győrffy
- Semmelweis University, Department of Bioinformatics, Tűzoltó u. 7-9, H-1094 Budapest, Hungary; Research Centre for Natural Sciences, Cancer Biomarker Research Group, Institute of Enzymology, Magyar tudósok krt. 2, H-1117 Budapest, Hungary; National Laboratory for Drug Research and Development, Magyar tudósok krt. 2, H-1117 Budapest, Hungary.
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16
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Basehore SE, Garcia J, Clyne AM. Steady Laminar Flow Decreases Endothelial Glycolytic Flux While Enhancing Proteoglycan Synthesis and Antioxidant Pathways. Int J Mol Sci 2024; 25:2485. [PMID: 38473731 PMCID: PMC10931250 DOI: 10.3390/ijms25052485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/09/2024] [Accepted: 02/16/2024] [Indexed: 03/14/2024] Open
Abstract
Endothelial cells in steady laminar flow assume a healthy, quiescent phenotype, while endothelial cells in oscillating disturbed flow become dysfunctional. Since endothelial dysfunction leads to atherosclerosis and cardiovascular disease, it is important to understand the mechanisms by which endothelial cells change their function in varied flow environments. Endothelial metabolism has recently been proven a powerful tool to regulate vascular function. Endothelial cells generate most of their energy from glycolysis, and steady laminar flow may reduce endothelial glycolytic flux. We hypothesized that steady laminar but not oscillating disturbed flow would reduce glycolytic flux and alter glycolytic side branch pathways. In this study, we exposed human umbilical vein endothelial cells to static culture, steady laminar flow (20 dynes/cm2 shear stress), or oscillating disturbed flow (4 ± 6 dynes/cm2 shear stress) for 24 h using a cone-and-plate device. We then measured glucose and lactate uptake and secretion, respectively, and glycolytic metabolites. Finally, we explored changes in the expression and protein levels of endothelial glycolytic enzymes. Our data show that endothelial cells in steady laminar flow had decreased glucose uptake and 13C labeling of glycolytic metabolites while cells in oscillating disturbed flow did not. Steady laminar flow did not significantly change glycolytic enzyme gene or protein expression, suggesting that glycolysis may be altered through enzyme activity. Flow also modulated glycolytic side branch pathways involved in proteoglycan and glycosaminoglycan synthesis, as well as oxidative stress. These flow-induced changes in endothelial glucose metabolism may impact the atheroprone endothelial phenotype in oscillating disturbed flow.
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Affiliation(s)
- Sarah E. Basehore
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, PA 19104, USA (J.G.)
| | - Jonathan Garcia
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, PA 19104, USA (J.G.)
| | - Alisa Morss Clyne
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA
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17
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Lodge M, Scheidemantle G, Adams VR, Cottam MA, Richard D, Breuer D, Thompson P, Shrestha K, Liu X, Kennedy A. Fructose regulates the pentose phosphate pathway and induces an inflammatory and resolution phenotype in Kupffer cells. Sci Rep 2024; 14:4020. [PMID: 38369593 PMCID: PMC10874942 DOI: 10.1038/s41598-024-54272-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 02/10/2024] [Indexed: 02/20/2024] Open
Abstract
Over-consumption of fructose in adults and children has been linked to increased risk of non-alcoholic fatty liver disease (NAFLD). Recent studies have highlighted the effect of fructose on liver inflammation, fibrosis, and immune cell activation. However, little work summarizes the direct impact of fructose on macrophage infiltration, phenotype, and function within the liver. We demonstrate that chronic fructose diet decreased Kupffer cell populations while increasing transitioning monocytes. In addition, fructose increased fibrotic gene expression of collagen 1 alpha 1 (Col1a1) and tissue metallopeptidase inhibitor 1 (Timp1) as well as inflammatory gene expression of tumor necrosis factor alpha (Tnfa) and expression of transmembrane glycoprotein NMB (Gpnmb) in liver tissue compared to glucose and control diets. Single cell RNA sequencing (scRNAseq) revealed fructose elevated expression of matrix metallopeptidase 12 (Mmp12), interleukin 1 receptor antagonist (Il1rn), and radical S-adenosyl methionine domain (Rsad2) in liver and hepatic macrophages. In vitro studies using IMKC and J774.1 cells demonstrated decreased viability when exposed to fructose. Additionally, fructose increased Gpnmb, Tnfa, Mmp12, Il1rn, and Rsad2 in unpolarized IMKC. By mass spectrometry, C13 fructose tracing detected fructose metabolites in glycolysis and the pentose phosphate pathway (PPP). Inhibition of the PPP further increased fructose induced Il6, Gpnmb, Mmp12, Il1rn, and Rsad2 in nonpolarized IMKC. Taken together, fructose decreases cell viability while upregulating resolution and anti-inflammatory associated genes in Kupffer cells.
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Affiliation(s)
- Mareca Lodge
- Department of Molecular and Structural Biochemistry, NC State University, Raleigh, NC, USA
| | - Grace Scheidemantle
- Department of Molecular and Structural Biochemistry, NC State University, Raleigh, NC, USA
| | - Victoria R Adams
- Department of Molecular and Structural Biochemistry, NC State University, Raleigh, NC, USA
| | - Matthew A Cottam
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Daniel Richard
- Department of Molecular and Structural Biochemistry, NC State University, Raleigh, NC, USA
| | - Denitra Breuer
- Department of Molecular and Structural Biochemistry, NC State University, Raleigh, NC, USA
| | - Peter Thompson
- Molecular Education, Technology and Research Innovation Center (METRIC), NC State University, Raleigh, NC, USA
| | - Kritika Shrestha
- Department of Molecular and Structural Biochemistry, NC State University, Raleigh, NC, USA
| | - Xiaojing Liu
- Department of Molecular and Structural Biochemistry, NC State University, Raleigh, NC, USA
| | - Arion Kennedy
- Department of Molecular and Structural Biochemistry, NC State University, Raleigh, NC, USA.
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18
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Klip A, De Bock K, Bilan PJ, Richter EA. Transcellular Barriers to Glucose Delivery in the Body. Annu Rev Physiol 2024; 86:149-173. [PMID: 38345907 DOI: 10.1146/annurev-physiol-042022-031657] [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] [Indexed: 02/15/2024]
Abstract
Glucose is the universal fuel of most mammalian cells, and it is largely replenished through dietary intake. Glucose availability to tissues is paramount for the maintenance of homeostatic energetics and, hence, supply should match demand by the consuming organs. In its journey through the body, glucose encounters cellular barriers for transit at the levels of the absorbing intestinal epithelial wall, the renal epithelium mediating glucose reabsorption, and the tight capillary endothelia (especially in the brain). Glucose transiting through these cellular barriers must escape degradation to ensure optimal glucose delivery to the bloodstream or tissues. The liver, which stores glycogen and generates glucose de novo, must similarly be able to release it intact to the circulation. We present the most up-to-date knowledge on glucose handling by the gut, liver, brain endothelium, and kidney, and discuss underlying molecular mechanisms and open questions. Diseases associated with defects in glucose delivery and homeostasis are also briefly addressed. We propose that the universal problem of sparing glucose from catabolism in favor of translocation across the barriers posed by epithelia and endothelia is resolved through common mechanisms involving glucose transfer to the endoplasmic reticulum, from where glucose exits the cells via unconventional cellular mechanisms.
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Affiliation(s)
- Amira Klip
- Cell Biology Program, The Hospital for Sick Children, Toronto, Ontario, Canada;
| | - Katrien De Bock
- Laboratory of Exercise and Health, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH), Zürich, Switzerland
| | - Philip J Bilan
- Cell Biology Program, The Hospital for Sick Children, Toronto, Ontario, Canada;
| | - Erik A Richter
- The August Krogh Section for Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
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19
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De Vito F, Suraci E, Marasco R, Luzza F, Andreozzi F, Sesti G, Fiorentino TV. Association between higher duodenal levels of the fructose carrier glucose transporter-5 and nonalcoholic fatty liver disease and liver fibrosis. J Intern Med 2024; 295:171-180. [PMID: 37797237 DOI: 10.1111/joim.13729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
BACKGROUND An increased dietary fructose intake has been shown to exert several detrimental metabolic effects and contribute to the pathogenesis of nonalcoholic fatty liver disease (NAFLD). An augmented intestinal abundance of the fructose carriers glucose transporter-5 (GLUT-5) and glucose transporter-2 (GLUT-2) has been found in subjects with obesity and type 2 diabetes. Herein, we investigated whether elevated intestinal levels of GLUT-5 and GLUT-2, resulting in a higher dietary fructose uptake, are associated with NAFLD and its severity. METHODS GLUT-5 and GLUT-2 protein levels were assessed on duodenal mucosa biopsies of 31 subjects divided into 2 groups based on ultrasound-defined NAFLD presence who underwent an upper gastrointestinal endoscopy. RESULTS Individuals with NAFLD exhibited increased duodenal GLUT-5 protein levels in comparison to those without NAFLD, independently of demographic and anthropometric confounders. Conversely, no difference in duodenal GLUT-2 abundance was observed amongst the two groups. Univariate correlation analyses showed that GLUT-5 protein levels were positively related with body mass index, waist circumference, fasting and 2 h post-load insulin concentrations, and insulin resistance (IR) degree estimated by homeostatic model assessment of IR (r = 0.44; p = 0.02) and liver IR (r = 0.46; p = 0.03) indexes. Furthermore, a positive relationship was observed between duodenal GLUT-5 abundance and serum uric acid concentrations (r = 0.40; p = 0.05), a product of fructose metabolism implicated in NAFLD progression. Importantly, duodenal levels of GLUT-5 were positively associated with liver fibrosis risk estimated by NAFLD fibrosis score. CONCLUSION Increased duodenal GLUT-5 levels are associated with NAFLD and liver fibrosis. Inhibition of intestinal GLUT-5-mediated fructose uptake may represent a strategy for prevention and treatment of NAFLD.
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Affiliation(s)
- Francesca De Vito
- Department of Medical and Surgical Sciences, University Magna Graecia of Catanzaro, Catanzaro, Italy
| | - Evelina Suraci
- Department of Health Sciences, University Magna Graecia of Catanzaro, Catanzaro, Italy
| | - Raffaella Marasco
- Department of Health Sciences, University Magna Graecia of Catanzaro, Catanzaro, Italy
| | - Francesco Luzza
- Department of Health Sciences, University Magna Graecia of Catanzaro, Catanzaro, Italy
| | - Francesco Andreozzi
- Department of Medical and Surgical Sciences, University Magna Graecia of Catanzaro, Catanzaro, Italy
| | - Giorgio Sesti
- Department of Clinical and Molecular Medicine, University of Rome-Sapienza, Rome, Italy
| | - Teresa Vanessa Fiorentino
- Department of Medical and Surgical Sciences, University Magna Graecia of Catanzaro, Catanzaro, Italy
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20
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Ocampo-Anguiano PV, Victoria-Ruiz LL, Reynoso-Camacho R, Olvera-Ramírez AM, Rocha-Guzmán NE, Ramos-Gómez M, Ahumada-Solórzano SM. Ingestion of Bean Leaves Reduces Metabolic Complications and Restores Intestinal Integrity in C57BL/6 Mice with Obesity Induced by a High-Fat and High-Fructose Diet. Nutrients 2024; 16:367. [PMID: 38337654 PMCID: PMC10856891 DOI: 10.3390/nu16030367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
Consumption of foods with fiber and compounds can promote gastrointestinal health and reduce obesity complications. Therefore, treatment with common bean leaves (BL) against obesity was evaluated in mice with a high-fat and high-fructose diet (HFFD) for 14 weeks. The bromatological and phytochemical characterization of BL were determined. Afterwards, the animals were supplemented with BL (10%) or a standard diet (SD) as a strategy to encourage a healthy diet for 12 additional weeks. Changes in body composition, lipid profile, and intestinal integrity were analyzed. The characterization of BL stood out for its content of 27.2% dietary fiber, total phenolics (475.04 mg/100 g), and saponins (2.2 mg/100 g). The visceral adipose tissue (VAT) decreased in the BL group by 52% compared to the HFFD group. Additionally, triglyceride levels were 23% lower in the BL consumption group compared to the HFFD group. The improvement in lipid profile was attributed to the 1.77-fold higher fecal lipid excretion in the BL consumption group compared to the HFFD group and the inhibition of pancreatic lipase by 29%. Furthermore, BL supplementation reduced the serum levels of IL-6 (4.4-fold) and FITC-dextran by 50% compared with those in the HFFD group. Metabolic endotoxemia was inhibited after BL supplementation (-33%) compared to the HFFD group. BL consumption as a treatment in obese mice reduces adipose tissue accumulation and improves the lipid profile. Furthermore, we report for the first time that BL consumption improves intestinal integrity.
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Affiliation(s)
- Perla Viridiana Ocampo-Anguiano
- Research and Postgraduate Department in Food Science, School of Chemistry, Autonomous University of Queretaro, Centro Universitario, Cerro de las Campanas S/N, Queretaro 76010, Mexico; (P.V.O.-A.); (L.L.V.-R.); (R.R.-C.)
- Interdisciplinary Research in Biomedicine, Faculty of Natural Sciences, Autonomous University of Queretaro, Campus Juriquilla, Av. de las Ciencias S/N, Queretaro 76230, Mexico
| | - Laura Lizeth Victoria-Ruiz
- Research and Postgraduate Department in Food Science, School of Chemistry, Autonomous University of Queretaro, Centro Universitario, Cerro de las Campanas S/N, Queretaro 76010, Mexico; (P.V.O.-A.); (L.L.V.-R.); (R.R.-C.)
| | - Rosalía Reynoso-Camacho
- Research and Postgraduate Department in Food Science, School of Chemistry, Autonomous University of Queretaro, Centro Universitario, Cerro de las Campanas S/N, Queretaro 76010, Mexico; (P.V.O.-A.); (L.L.V.-R.); (R.R.-C.)
| | - Andrea Margarita Olvera-Ramírez
- Department of Veterinary Medicine, Faculty of Natural Sciences, Autonomous University of Queretaro, Campus Juriquilla, Av. de las Ciencias S/N, Queretaro 76230, Mexico;
| | - Nuria Elizabeth Rocha-Guzmán
- Research Group on Functional Foods and Nutraceuticals, Department of Chemical and Biochemical Engineering, TecNM/Instituto Tecnológico de Durango, Durango 34080, Mexico;
| | - Minerva Ramos-Gómez
- Research and Postgraduate Department in Food Science, School of Chemistry, Autonomous University of Queretaro, Centro Universitario, Cerro de las Campanas S/N, Queretaro 76010, Mexico; (P.V.O.-A.); (L.L.V.-R.); (R.R.-C.)
| | - Santiaga Marisela Ahumada-Solórzano
- Interdisciplinary Research in Biomedicine, Faculty of Natural Sciences, Autonomous University of Queretaro, Campus Juriquilla, Av. de las Ciencias S/N, Queretaro 76230, Mexico
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21
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Yamamoto K, Harada N, Yasuda T, Hatoko T, Wada N, Lu X, Seno Y, Kurihara T, Yamane S, Inagaki N. Intestinal Morphology and Glucose Transporter Gene Expression under a Chronic Intake of High Sucrose. Nutrients 2024; 16:196. [PMID: 38257088 PMCID: PMC10820040 DOI: 10.3390/nu16020196] [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: 12/13/2023] [Revised: 12/30/2023] [Accepted: 01/04/2024] [Indexed: 01/24/2024] Open
Abstract
Sucrose is a disaccharide that is degraded into fructose and glucose in the small intestine. High-sucrose and high-fructose diets have been reported, using two-dimensional imaging, to alter the intestinal morphology and the expression of genes associated with sugar transport, such as sodium glucose co-transporter 1 (SGLT1), glucose transporter 2 (GLUT2), and glucose transporter 5 (GLUT5). However, it remains unclear how high-fructose and high-sucrose diets affect the expression of sugar transporters and the intestinal morphology in the whole intestine. We investigate the influence of a chronic high-sucrose diet on the expression of the genes associated with sugar transport as well as its effects on the intestinal morphology using 3D imaging. High sucrose was found to increase GLUT2 and GLUT5 mRNA levels without significant changes in the intestinal morphology using 3D imaging. On the other hand, the delay in sucrose absorption by an α-glucosidase inhibitor significantly improved the intestinal morphology and the expression levels of SGLT1, GLUT2, and GLUT5 mRNA in the distal small intestine to levels similar to those in the proximal small intestine, thereby improving glycemic control after both glucose and sucrose loading. These results reveal the effects of chronic high-sugar exposure on glucose absorption and changes in the intestinal morphology.
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Affiliation(s)
- Kana Yamamoto
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Norio Harada
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Takuma Yasuda
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Tomonobu Hatoko
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Naoki Wada
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Xuejing Lu
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Youhei Seno
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Takashi Kurihara
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Shunsuke Yamane
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Nobuya Inagaki
- P.I.I.F. Tazuke-Kofukai Medical Research Institute, Kitano Hospital, Osaka 530-8480, Japan
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22
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Lien EC, Vu N, Westermark AM, Danai LV, Lau AN, Gültekin Y, Kukurugya MA, Bennett BD, Vander Heiden MG. Effects of aging on glucose and lipid metabolism in mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.17.572088. [PMID: 38187759 PMCID: PMC10769226 DOI: 10.1101/2023.12.17.572088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Aging is accompanied by multiple molecular changes that contribute to aging-associated pathologies, such as accumulation of cellular damage and mitochondrial dysfunction. Tissue metabolism can also change with age, in part because mitochondria are central to cellular metabolism. Moreover, the co-factor NAD+, which is reported to decline across multiple tissue types during aging, plays a central role in metabolic pathways such as glycolysis, the tricarboxylic acid cycle, and the oxidative synthesis of nucleotides, amino acids, and lipids. To further characterize how tissue metabolism changes with age, we intravenously infused [U-13C]-glucose into young and old C57BL/6J, WSB/EiJ, and Diversity Outbred mice to trace glucose fate into downstream metabolites within plasma, liver, gastrocnemius muscle, and brain tissues. We found that glucose incorporation into central carbon and amino acid metabolism was robust during healthy aging across these different strains of mice. We also observed that levels of NAD+, NADH, and the NAD+/NADH ratio were unchanged in these tissues with healthy aging. However, aging tissues, particularly brain, exhibited evidence of up-regulated fatty acid and sphingolipid metabolism reactions that regenerate NAD+ from NADH. Because mitochondrial respiration, a major source of NAD+ regeneration, is reported to decline with age, our data supports a model where NAD+-generating lipid metabolism reactions may buffer against changes in NAD+/NADH during healthy aging.
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Affiliation(s)
- Evan C. Lien
- Department of Metabolism and Nutritional Programming, Van Andel Institute, Grand Rapids, MI 49503, USA
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Ngoc Vu
- Calico Life Sciences LLC, South San Francisco, CA 94080, USA
| | - Anna M. Westermark
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Laura V. Danai
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Department of Biochemistry and Molecular Biology, University of Massachusetts Amherst, Amherst, MA 01003, USA
| | - Allison N. Lau
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Yetiş Gültekin
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | | | | | - Matthew G. Vander Heiden
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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23
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Zhou Y, Zhang L, Guo F, Liu X, Li X, Han Z, Li X, Shi X, Wen L, Wang J. Metabolomic and Transcriptomic Analysis of Effects of Three MUFA-Rich Oils on Hepatic Glucose and Lipid Metabolism in Mice. Mol Nutr Food Res 2023; 67:e2300398. [PMID: 37867207 DOI: 10.1002/mnfr.202300398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 09/11/2023] [Indexed: 10/24/2023]
Abstract
SCOPE Olive oil, rapeseed oil, and lard are dietary fats rich in monounsaturated fatty acids, but the effects of dietary oils enriched in monounsaturated fatty acids on hepatic lipid deposition have seldom been compared. METHODS AND RESULTS Ninety 8-week-old C57BL/6J male mice are randomly divided into six groups and fed diets containing lard, rapeseed oil, or olive oil with a 10% or 45% fat energy supply for 16 weeks. Under high-fat conditions, serum total cholesterol levels in the lard and olive oil groups are significantly higher than those in the rapeseed oil group. Hepatic lipid content in the olive oil group is higher than that in the other two groups. Compared with rapeseed oil, lard increases the liver levels of arachidonic, palmitic, and myristic acids and decreases the levels of eicosapentaenoic linolenic acid and linoleic acid. Olive oil increases the liver levels of docosatrienoic, arachidonic, oleic, and myristic acids; maltose; and fructose and decreases the levels of eicosapentaenoic, linolenic, and linoleic acids. CONCLUSION Olive oil probably causes hepatic lipid deposition in mice, which may enhance hepatic lipid synthesis by activating the starch and sucrose metabolic pathways. By contrast, rapeseed oil shows a significant anti-lipid deposition effect on the liver.
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Affiliation(s)
- Yingfang Zhou
- Hunan Engineering Research Center of Livestock and Poultry Health Care, Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha, 410128, China
| | - Linyu Zhang
- Hunan Engineering Research Center of Livestock and Poultry Health Care, Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha, 410128, China
| | - Fangrui Guo
- Hunan Engineering Research Center of Livestock and Poultry Health Care, Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha, 410128, China
| | - Xiangyan Liu
- Hunan Engineering Research Center of Livestock and Poultry Health Care, Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha, 410128, China
| | - Xin Li
- Changsha Lvye Biotechnology Co., Ltd., Changsha, 410100, China
| | - Zongding Han
- Orient Science & Technology College of Hunan Agricultural University, Hunan Agricultural University, Changsha, 410128, China
| | - Xiaowen Li
- Hunan Engineering Research Center of Livestock and Poultry Health Care, Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha, 410128, China
| | - Xingyong Shi
- Hunan Engineering Research Center of Livestock and Poultry Health Care, Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha, 410128, China
| | - Lixin Wen
- Hunan Engineering Research Center of Livestock and Poultry Health Care, Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha, 410128, China
| | - Ji Wang
- Hunan Engineering Research Center of Livestock and Poultry Health Care, Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha, 410128, China
- Animal Nutritional Genome and Germplasm Innovation Research Center, College of Animal Science and Technology, Hunan Agricultural University, Changsha, 410128, China
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24
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Staltner R, Burger K, Baumann A, Bergheim I. Fructose: a modulator of intestinal barrier function and hepatic health? Eur J Nutr 2023; 62:3113-3124. [PMID: 37596353 PMCID: PMC10611622 DOI: 10.1007/s00394-023-03232-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 08/04/2023] [Indexed: 08/20/2023]
Abstract
PURPOSE Consumption of fructose has repeatedly been discussed to be a key factor in the development of health disturbances such as hypertension, diabetes type 2, and non-alcoholic fatty liver disease. Despite intense research efforts, the question if and how high dietary fructose intake interferes with human health has not yet been fully answered. RESULTS Studies suggest that besides its insulin-independent metabolism dietary fructose may also impact intestinal homeostasis and barrier function. Indeed, it has been suggested by the results of human and animal as well as in vitro studies that fructose enriched diets may alter intestinal microbiota composition. Furthermore, studies have also shown that both acute and chronic intake of fructose may lead to an increased formation of nitric oxide and a loss of tight junction proteins in small intestinal tissue. These alterations have been related to an increased translocation of pathogen-associated molecular patterns (PAMPs) like bacterial endotoxin and an induction of dependent signaling cascades in the liver but also other tissues. CONCLUSION In the present narrative review, results of studies assessing the effects of fructose on intestinal barrier function and their impact on the development of health disturbances with a particular focus on the liver are summarized and discussed.
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Affiliation(s)
- Raphaela Staltner
- Department of Nutritional Sciences, Molecular Nutritional Science, University of Vienna, Josef-Holaubek-Platz 2, A-1090, Vienna, Austria
| | - Katharina Burger
- Department of Nutritional Sciences, Molecular Nutritional Science, University of Vienna, Josef-Holaubek-Platz 2, A-1090, Vienna, Austria
| | - Anja Baumann
- Department of Nutritional Sciences, Molecular Nutritional Science, University of Vienna, Josef-Holaubek-Platz 2, A-1090, Vienna, Austria
| | - Ina Bergheim
- Department of Nutritional Sciences, Molecular Nutritional Science, University of Vienna, Josef-Holaubek-Platz 2, A-1090, Vienna, Austria.
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25
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Nikolaou KC, Godbersen S, Manoharan M, Wieland S, Heim MH, Stoffel M. Inflammation-induced TRIM21 represses hepatic steatosis by promoting the ubiquitination of lipogenic regulators. JCI Insight 2023; 8:e164694. [PMID: 37937648 PMCID: PMC10721265 DOI: 10.1172/jci.insight.164694] [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: 09/06/2022] [Accepted: 09/14/2023] [Indexed: 11/09/2023] Open
Abstract
Nonalcoholic steatohepatitis (NASH) is a leading cause for chronic liver diseases. Current therapeutic options are limited due to an incomplete mechanistic understanding of how steatosis transitions to NASH. Here we show that the TRIM21 E3 ubiquitin ligase is induced by the synergistic actions of proinflammatory TNF-α and fatty acids in livers of humans and mice with NASH. TRIM21 ubiquitinates and degrades ChREBP, SREBP1, ACC1, and FASN, key regulators of de novo lipogenesis, and A1CF, an alternative splicing regulator of the high-activity ketohexokinase-C (KHK-C) isoform and rate-limiting enzyme of fructose metabolism. TRIM21-mediated degradation of these lipogenic activators improved steatosis and hyperglycemia as well as fructose and glucose tolerance. Our study identifies TRIM21 as a negative regulator of liver steatosis in NASH and provides mechanistic insights into an immunometabolic crosstalk that limits fatty acid synthesis and fructose metabolism during metabolic stress. Thus, enhancing this natural counteracting force of steatosis through inhibition of key lipogenic activators via TRIM21-mediated ubiquitination may provide a therapeutic opportunity to treat NASH.
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Affiliation(s)
| | - Svenja Godbersen
- Institute of Molecular Health Sciences, ETH Zurich, Zürich, Switzerland
| | | | - Stefan Wieland
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Markus H. Heim
- Department of Biomedicine, University of Basel, Basel, Switzerland
- Clarunis, University Center for Gastrointestinal and Liver Diseases, Basel, Switzerland
| | - Markus Stoffel
- Institute of Molecular Health Sciences, ETH Zurich, Zürich, Switzerland
- Medical Faculty, University of Zürich, Zürich, Switzerland
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26
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Zhou P, Chang WY, Gong DA, Xia J, Chen W, Huang LY, Liu R, Liu Y, Chen C, Wang K, Tang N, Huang AL. High dietary fructose promotes hepatocellular carcinoma progression by enhancing O-GlcNAcylation via microbiota-derived acetate. Cell Metab 2023; 35:1961-1975.e6. [PMID: 37797623 DOI: 10.1016/j.cmet.2023.09.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 07/30/2023] [Accepted: 09/12/2023] [Indexed: 10/07/2023]
Abstract
Emerging studies have addressed the tumor-promoting role of fructose in different cancers. The effects and pathological mechanisms of high dietary fructose on hepatocellular carcinoma (HCC) remain unclear. Here, we examined the effects of fructose supplementation on HCC progression in wild-type C57BL/6 mice using a spontaneous and chemically induced HCC mouse model. We show that elevated uridine diphospho-N-acetylglucosamine (UDP-GlcNAc) and O-GlcNAcylation levels induced by high dietary fructose contribute to HCC progression. Non-targeted metabolomics and stable isotope tracing revealed that under fructose treatment, microbiota-derived acetate upregulates glutamine and UDP-GlcNAc levels and enhances protein O-GlcNAcylation in HCC. Global profiling of O-GlcNAcylation revealed that hyper-O-GlcNAcylation of eukaryotic elongation factor 1A1 promotes cell proliferation and tumor growth. Targeting glutamate-ammonia ligase or O-linked N-acetylglucosamine transferase (OGT) remarkably impeded HCC progression in mice with high fructose intake. We propose that high dietary fructose promotes HCC progression through microbial acetate-induced hyper-O-GlcNAcylation.
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Affiliation(s)
- Peng Zhou
- Key Laboratory of Molecular Biology for Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China
| | - Wen-Yi Chang
- Key Laboratory of Molecular Biology for Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China
| | - De-Ao Gong
- Key Laboratory of Molecular Biology for Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China
| | - Jie Xia
- Key Laboratory of Molecular Biology for Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China
| | - Wei Chen
- Shanghai Applied Protein Technology Co., Ltd., Shanghai 201109, China
| | - Lu-Yi Huang
- Key Laboratory of Molecular Biology for Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China
| | - Rui Liu
- Key Laboratory of Molecular Biology for Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China
| | - Yi Liu
- Key Laboratory of Molecular Biology for Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China
| | - Chang Chen
- Institute of Life Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Kai Wang
- Key Laboratory of Molecular Biology for Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China.
| | - Ni Tang
- Key Laboratory of Molecular Biology for Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China.
| | - Ai-Long Huang
- Key Laboratory of Molecular Biology for Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China.
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27
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Sánchez-Terrón G, Martínez R, Ruiz J, Luna C, Estévez M. Impact of Sustained Fructose Consumption on Gastrointestinal Function and Health in Wistar Rats: Glycoxidative Stress, Impaired Protein Digestion, and Shifted Fecal Microbiota. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:16270-16285. [PMID: 37859404 PMCID: PMC10623553 DOI: 10.1021/acs.jafc.3c04515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
The gastrointestinal tract (GIT) is the target of assorted pathological conditions, and dietary components are known to affect its functionality and health. In previous in vitro studies, we observed that reducing sugars induced protein glycoxidation and impaired protein digestibility. To gain further insights into the pathophysiological effects of dietary sugars, Wistar rats were provided with a 30% (w/v) fructose water solution for 10 weeks. Upon slaughter, in vivo protein digestibility was assessed, and the entire GIT (digests and tissues) was analyzed for markers of oxidative stress and untargeted metabolomics. Additionally, the impact of sustained fructose intake on colonic microbiota was also evaluated. High fructose intake for 10 weeks decreased protein digestibility and promoted changes in the physiological digestion of proteins, enhancing intestinal digestion rather than stomach digestion. Moreover, at colonic stages, the oxidative stress was harmfully increased, and both the microbiota and the intraluminal colonic metabolome were modified.
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Affiliation(s)
- Guadalupe Sánchez-Terrón
- TECAL Research Group, Meat and Meat Products Research Institute (IPROCAR), Universidad de Extremadura (UEX), Cáceres 10003, Spain
| | - Remigio Martínez
- TECAL Research Group, Meat and Meat Products Research Institute (IPROCAR), Universidad de Extremadura (UEX), Cáceres 10003, Spain
- Animal Health Department, Universidad of Extremadura (UEX), Cáceres 10003, Spain
- Animal Health Department, GISAZ Research Group, ENZOEM Competitive Research Unit, Universidad of Córdoba (UCO), Córdoba 14014, Spain
| | - Jorge Ruiz
- TECAL Research Group, Meat and Meat Products Research Institute (IPROCAR), Universidad de Extremadura (UEX), Cáceres 10003, Spain
| | - Carolina Luna
- Emergency Unit, Servicio Extremeño de Salud, SES, Junta de Extremadura, Cáceres 10003, Spain
| | - Mario Estévez
- TECAL Research Group, Meat and Meat Products Research Institute (IPROCAR), Universidad de Extremadura (UEX), Cáceres 10003, Spain
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28
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Zhang D, Wang H, Liu A, Wang S, Xu C, Lan K, Xiang W, Zhu K, Xiao Y, Fu J, Jiang R, Chen W, Ni Y. The chronic consumption of dietary fructose promotes the gut Clostridium species imbalance and bile acid alterations in developing nonalcoholic fatty liver disease. J Nutr Biochem 2023; 121:109434. [PMID: 37661068 DOI: 10.1016/j.jnutbio.2023.109434] [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: 10/22/2022] [Revised: 06/30/2023] [Accepted: 08/29/2023] [Indexed: 09/05/2023]
Abstract
Excessive fructose intake is associated with the rising prevalence of nonalcoholic fatty liver disease (NAFLD). The gut microbiome (GM) and bile acids (BAs) are involved in the pathogenesis of NAFLD, but the impact of fructose on their cross-talk is unclear. In this study, adult male C57BL/6J mice were fed a normal diet with tap water (ND) or with 4% fructose in the drinking water (Fru), 60% high-fat diet with tap water (HF) or with 4% fructose solution (HFF) for 12 weeks. Targeted BA analysis was performed in five anatomical sites including the liver, ileum contents, portal serum, cecum contents, and feces. Metagenomic sequencing was performed to explore gut dysbiosis. Within 12 weeks, the 4% fructose diet could initially stimulate gut dysbiosis and BA upregulation in the ileum, portal serum, and cecum when the intestinal and hepatic transport system remained stable without hepatic lipid accumulation. However, the chronic consumption of fructose promoted HF-induced NAFLD, with significantly increased body weight, impaired glucose tolerance, and advanced liver steatosis. BA transporters were inhibited in HFF, causing the block of internal BA circulation and increased BA secretion via cecum contents and feces. Notably, lithocholic acid (LCA) and its taurine conjugates were elevated within the enterohepatic circulation. Meanwhile, the Clostridium species were significantly altered in both Fru and HFF groups and were closely associated with fructose and BA metabolism. In summary, excessive fructose caused gut dysbiosis and BA alterations, promoting HF-induced NAFLD. The crosstalk between Clostridium sp. and LCA species were potential targets in fructose-mediated NAFLD.
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Affiliation(s)
- Danni Zhang
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China; Department of Epidemiology and Biostatistics, Zhejiang University School of Public Health, Hangzhou, China
| | - Huiying Wang
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Ana Liu
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Shan Wang
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Cuifang Xu
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Ke Lan
- Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu, China
| | - Wenqing Xiang
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Kun Zhu
- Department of Pathology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Yingping Xiao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Junfen Fu
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Runqiu Jiang
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China; Medical School of Nanjing University, Nanjing, China
| | - Wenlian Chen
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yan Ni
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China; Department of Epidemiology and Biostatistics, Zhejiang University School of Public Health, Hangzhou, China.
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29
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Huneault HE, Ramirez Tovar A, Sanchez-Torres C, Welsh JA, Vos MB. The Impact and Burden of Dietary Sugars on the Liver. Hepatol Commun 2023; 7:e0297. [PMID: 37930128 PMCID: PMC10629746 DOI: 10.1097/hc9.0000000000000297] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 08/25/2023] [Indexed: 11/07/2023] Open
Abstract
NAFLD, or metabolic dysfunction-associated steatotic liver disease, has increased in prevalence hand in hand with the rise in obesity and increased free sugars in the food supply. The causes of NAFLD are genetic in origin combined with environmental drivers of the disease phenotype. Dietary intake of added sugars has been shown to have a major role in the phenotypic onset and progression of the disease. Simple sugars are key drivers of steatosis, likely through fueling de novo lipogenesis, the conversion of excess carbohydrates into fatty acids, but also appear to upregulate lipogenic metabolism and trigger hyperinsulinemia, another driver. NAFLD carries a clinical burden as it is associated with obesity, type 2 diabetes, metabolic syndrome, and cardiovascular disease. Patient quality of life is also impacted, and there is an enormous economic burden due to healthcare use, which is likely to increase in the coming years. This review aims to discuss the role of dietary sugar in NAFLD pathogenesis, the health and economic burden, and the promising potential of sugar reduction to improve health outcomes for patients with this chronic liver disease.
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Affiliation(s)
- Helaina E. Huneault
- Nutrition and Health Sciences Program, Laney Graduate School, Emory University, Atlanta, Georgia, USA
| | - Ana Ramirez Tovar
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Emory University, Atlanta, Georgia, USA
| | - Cristian Sanchez-Torres
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Emory University, Atlanta, Georgia, USA
| | - Jean A. Welsh
- Nutrition and Health Sciences Program, Laney Graduate School, Emory University, Atlanta, Georgia, USA
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Emory University, Atlanta, Georgia, USA
| | - Miriam B. Vos
- Nutrition and Health Sciences Program, Laney Graduate School, Emory University, Atlanta, Georgia, USA
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Emory University, Atlanta, Georgia, USA
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30
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Song A, Mao Y, Wei H. GLUT5: structure, functions, diseases and potential applications. Acta Biochim Biophys Sin (Shanghai) 2023; 55:1519-1538. [PMID: 37674366 PMCID: PMC10582729 DOI: 10.3724/abbs.2023158] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 05/19/2023] [Indexed: 09/08/2023] Open
Abstract
Glucose transporter 5 (GLUT5) is a membrane transporter that specifically transports fructose and plays a key role in dietary fructose uptake and metabolism. In recent years, a high fructose diet has occupied an important position in the daily intake of human beings, resulting in a significant increase in the incidence of obesity and metabolic diseases worldwide. Over the past few decades, GLUT5 has been well understood to play a significant role in the pathogenesis of human digestive diseases. Recently, the role of GLUT5 in human cancer has received widespread attention, and a large number of studies have focused on exploring the effects of changes in GLUT5 expression levels on cancer cell survival, metabolism and metastasis. However, due to various difficulties and shortcomings, the molecular structure and mechanism of GLUT5 have not been fully elucidated, which to some extent prevents us from revealing the relationship between GLUT5 expression and cell carcinogenesis at the protein molecular level. In this review, we summarize the current understanding of the structure and function of mammalian GLUT5 and its relationship to intestinal diseases and cancer and suggest that GLUT5 may be an important target for cancer therapy.
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Affiliation(s)
- Aqian Song
- Department of GastroenterologyBeijing Ditan HospitalCapital Medical UniversityBeijing100015China
| | - Yuanpeng Mao
- Department of GastroenterologyPeking University Ditan Teaching HospitalBeijing100015China
| | - Hongshan Wei
- Department of GastroenterologyBeijing Ditan HospitalCapital Medical UniversityBeijing100015China
- Department of GastroenterologyPeking University Ditan Teaching HospitalBeijing100015China
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31
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Feng L, Gao J, Xia W, Li Y, Lowe S, Yau V, Ma S, Zhou Z, Ding P, Cheng C, Bentley R, Wang Y, Zhou Q, Wang K, Wu B, Xie P, Liu H, Sun C. Association of sugar-sweetened beverages with the risk of colorectal cancer: a systematic review and meta-analysis. Eur J Clin Nutr 2023; 77:941-952. [PMID: 37438466 DOI: 10.1038/s41430-023-01302-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 06/04/2023] [Accepted: 06/14/2023] [Indexed: 07/14/2023]
Abstract
The association between sugar-sweetened beverages intake and colorectal cancer (CRC) remains controversial. A metaanalysis was performed to clarify the correlation between sugar-sweetened beverages and CRC risk/mortality. A systematic literature search was conducted in PubMed, Web of Science, Embase, China National Knowledge Infrastructure (CNKI), Sinomed (CBM), Wanfang Data Knowledge Service Platform, and China Science and Technology Journal VIP database. Articles were restricted to be available in any language until March 31, 2022. The highest exposed categories were used to calculate the pooled relative risks (RR) values. Pooled relative risks (RR) and 95% confidence intervals (CI) were used to estimate the association of sugar-sweetened beverages with CRC risk and mortality. Heterogeneity was assessed with the Cochran Q statistic and quantified with the I2 statistic. A total of 17 studies (6 case-control and 11 cohort) involving 557,391 subjects were included in this meta-analysis. The pooled RRs for CRC incidence and mortality among people taking sugar-sweetened beverages were 1.17 (95% CI: 1.07-1.28) and 1.13 (95% CI: 0.99-1.29), respectively. In subgroup analysis, a correlation was found in the distal colon with a pooled RR of 1.41 (95% CI: 1.10-1.80). There was no correlation in the proximal colon with a pooled RR of 1.58 (95% CI: 0.79-3.17). We found statistically significant associations between CRC incidence and sugar-sweetened beverages intake in North America and Oceania, with pooled RRs of 1.16 (95% CI: 1.00-1.33) and 1.32 (95% CI: 1.13-1.55), respectively. In sensitivity analysis, after excluding each study and calculating heterogeneity and effect sizes, there was still a correlation between sugar-sweetened beverages intake and CRC risk. This meta-analysis suggests that sugar-sweetened beverages intake may increase CRC risk, independent of CRC mortality. Whether CRC risk increases with increased sugar-sweetened beverage intake needs further investigation in the future. This meta-analysis aimed to indicate the relationship between sugar-sweetened beverages intake and the risk and mortality of colorectal cancer. A total of 17 studies involving 557,391 subjects were included. The results showed that sugar-sweetened beverages may increase the risk of colorectal cancer but may not be associated with colorectal cancer mortality.
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Affiliation(s)
- Linya Feng
- Department of Epidemiology and Health Statistics, School of Public Health Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui, 230032, PR China
| | - Juan Gao
- Department of Epidemiology and Health Statistics, School of Public Health Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui, 230032, PR China
| | - Weihang Xia
- Department of Epidemiology and Health Statistics, School of Public Health Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui, 230032, PR China
| | - Yaru Li
- Internal Medicine, Swedish Hospital, 5140 N California Ave, Chicago, IL, 60625, USA
- College of Osteopathic Medicine, Des Moines University, 3200 Grand Ave, Des Moines, IA, 50312, USA
| | - Scott Lowe
- College of Osteopathic Medicine, Kansas City University, 1750 Independence Ave, Kansas City, MO, 64106, USA
| | - Vicky Yau
- Department of Oral and Maxillofacial Surgery, University at Buffalo, 320 Hayes Rd, Buffalo, New York, NY, 14215, USA
| | - Shaodi Ma
- Department of Epidemiology and Health Statistics, School of Public Health Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui, 230032, PR China
| | - Zhen Zhou
- Menzies Institute for Medical Research, University of Tasmania, 17 Liverpool Street, Hobart, TAS, 7000, Australia
| | - Ping'an Ding
- The Third Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050011, China
| | - Ce Cheng
- Hematology and Medical Oncology, St. Joseph Mercy Ann Arbor Hospital, 5301 McAuley Dr, Ypsilanti, MI, 48197, USA
| | - Rachel Bentley
- College of Osteopathic Medicine, Kansas City University, 1750 Independence Ave, Kansas City, MO, 64106, USA
| | - Yichen Wang
- Mercy Internal Medicine Service, Trinity Health of New England, 271 Carew St, Springfield, MA, 01104, USA
| | - Qin Zhou
- Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Kai Wang
- Department of Neurology, The Second Affiliated Hospital of Xuzhou Medical University, No. 32, Meijian Road, Xuzhou, Jiangsu, 221006, China
| | - Birong Wu
- Department of Epidemiology and Health Statistics, School of Public Health Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui, 230032, PR China
| | - Peng Xie
- Department of Epidemiology and Health Statistics, School of Public Health Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui, 230032, PR China
| | - Haixia Liu
- Department of Epidemiology and Health Statistics, School of Public Health Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui, 230032, PR China
| | - Chenyu Sun
- Department of General Surgery, the Second Affiliated Hospital of Anhui Medical University, Furong Road 678, Hefei, Anhui, 230601, China.
- Department of Thyroid and Breast Surgery, the Second Affiliated Hospital of Anhui Medical University, Furong Road 678, Hefei, Anhui, 230601, China.
- AMITA Health Saint Joseph Hospital Chicago, 2900 N. Lake Shore Drive, Chicago, Illinois, 60657, USA.
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Guccini I, Tang G, To TT, Di Rito L, Le Blanc S, Strobel O, D’Ambrosio M, Pasquini E, Bolis M, Silva P, Kabakci HA, Godbersen S, Alimonti A, Schwank G, Stoffel M. Genetic ablation of ketohexokinase C isoform impairs pancreatic cancer development. iScience 2023; 26:107368. [PMID: 37559908 PMCID: PMC10407955 DOI: 10.1016/j.isci.2023.107368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 06/09/2023] [Accepted: 07/10/2023] [Indexed: 08/11/2023] Open
Abstract
Although dietary fructose is associated with an elevated risk for pancreatic cancer, the underlying mechanisms remain elusive. Here, we report that ketohexokinase (KHK), the rate-limiting enzyme of fructose metabolism, is a driver of PDAC development. We demonstrate that fructose triggers KHK and induces fructolytic gene expression in mouse and human PDAC. Genetic inactivation of KhkC enhances the survival of KPC-driven PDAC even in the absence of high fructose diet. Furthermore, it decreases the viability, migratory capability, and growth of KPC cells in a cell autonomous manner. Mechanistically, we demonstrate that genetic ablation of KHKC strongly impairs the activation of KRAS-MAPK pathway and of rpS6, a downstream target of mTORC signaling. Moreover, overexpression of KHKC in KPC cells enhances the downstream KRAS pathway and cell viability. Our data provide new insights into the role of KHK in PDAC progression and imply that inhibiting KHK could have profound implications for pancreatic cancer therapy.
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Affiliation(s)
- Ilaria Guccini
- Institute of Molecular Health Sciences, ETH Zurich, 8093 Zurich, Switzerland
| | - Guanghui Tang
- Institute of Molecular Health Sciences, ETH Zurich, 8093 Zurich, Switzerland
| | - Trang Thuy To
- Institute of Molecular Health Sciences, ETH Zurich, 8093 Zurich, Switzerland
| | - Laura Di Rito
- Computational Oncology Unit, Department of Oncology, Istituto di Richerche Farmacologiche 'Mario Negri' IRCCS, 20156 Milano, Italy
| | - Solange Le Blanc
- European Pancreas Center, Department of General Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Oliver Strobel
- European Pancreas Center, Department of General Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Mariantonietta D’Ambrosio
- Institute of Oncology Research (IOR), Oncology Institute of Southern Switzerland (IOSI), 6500 Bellinzona, Switzerland
- Universita’ della Svizzera Italiana, 6900 Lugano, Switzerland
| | - Emiliano Pasquini
- Institute of Oncology Research (IOR), Oncology Institute of Southern Switzerland (IOSI), 6500 Bellinzona, Switzerland
- Universita’ della Svizzera Italiana, 6900 Lugano, Switzerland
| | - Marco Bolis
- Institute of Oncology Research (IOR), Oncology Institute of Southern Switzerland (IOSI), 6500 Bellinzona, Switzerland
- Bioinformatics Core Unit, Swiss Institute of Bioinformatics, TI, 6500 Bellinzona, Switzerland
| | - Pamuditha Silva
- Institute of Molecular Health Sciences, ETH Zurich, 8093 Zurich, Switzerland
| | - Hasan Ali Kabakci
- Institute of Molecular Health Sciences, ETH Zurich, 8093 Zurich, Switzerland
| | - Svenja Godbersen
- Institute of Molecular Health Sciences, ETH Zurich, 8093 Zurich, Switzerland
| | - Andrea Alimonti
- Institute of Oncology Research (IOR), Oncology Institute of Southern Switzerland (IOSI), 6500 Bellinzona, Switzerland
- Universita’ della Svizzera Italiana, 6900 Lugano, Switzerland
- Department of Medicine, University of Padua, 35128 Padua, Italy
- Department of Health Sciences and Technology (D-HEST) ETH Zurich, 8093 Zurich, Switzerland
| | - Gerald Schwank
- Institute of Molecular Health Sciences, ETH Zurich, 8093 Zurich, Switzerland
- Institute of Pharmacology and Toxicology, University of Zurich, 8057 Zurich, Switzerland
| | - Markus Stoffel
- Institute of Molecular Health Sciences, ETH Zurich, 8093 Zurich, Switzerland
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Wang Z, Lipshutz A, Liu ZL, Trzeciak AJ, Miranda IC, Martínez de la Torre C, Schild T, Lazarov T, Rojas WS, Saavedra PHV, Romero-Pichardo JE, Baako A, Geissmann F, Faraco G, Gan L, Etchegaray JI, Lucas CD, Parkhurst CN, Zeng MY, Keshari KR, Perry JSA. Early life high fructose exposure disrupts microglia function and impedes neurodevelopment. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.14.553242. [PMID: 37645894 PMCID: PMC10462086 DOI: 10.1101/2023.08.14.553242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Despite the success of fructose as a low-cost food additive, recent epidemiological evidence suggests that high fructose consumption by pregnant mothers or during adolescence is associated with disrupted neurodevelopment 1-7 . An essential step in appropriate mammalian neurodevelopment is the synaptic pruning and elimination of newly-formed neurons by microglia, the central nervous system's (CNS) resident professional phagocyte 8-10 . Whether early life high fructose consumption affects microglia function and if this directly impacts neurodevelopment remains unknown. Here, we show that both offspring born to dams fed a high fructose diet and neonates exposed to high fructose exhibit decreased microglial density, increased uncleared apoptotic cells, and decreased synaptic pruning in vivo . Importantly, deletion of the high affinity fructose transporter SLC2A5 (GLUT5) in neonates completely reversed microglia dysfunction, suggesting that high fructose directly affects neonatal development. Mechanistically, we found that high fructose treatment of both mouse and human microglia suppresses synaptic pruning and phagocytosis capacity which is fully reversed in GLUT5-deficient microglia. Using a combination of in vivo and in vitro nuclear magnetic resonance- and mass spectrometry-based fructose tracing, we found that high fructose drives significant GLUT5-dependent fructose uptake and catabolism, rewiring microglia metabolism towards a hypo-phagocytic state. Importantly, mice exposed to high fructose as neonates exhibited cognitive defects and developed anxiety-like behavior which were rescued in GLUT5-deficient animals. Our findings provide a mechanistic explanation for the epidemiological observation that early life high fructose exposure is associated with increased prevalence of adolescent anxiety disorders.
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Navalón-Monllor V, Soriano-Romaní L, Silva M, de Las Hazas MCL, Hernando-Quintana N, Suárez Diéguez T, Esteve PM, Nieto JA. Microbiota dysbiosis caused by dietetic patterns as a promoter of Alzheimer's disease through metabolic syndrome mechanisms. Food Funct 2023; 14:7317-7334. [PMID: 37470232 DOI: 10.1039/d3fo01257c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
Microbiota dysbiosis and metabolic syndrome, consequences of a non-adequate diet, generate a feedback pathogenic state implicated in Alzheimer's disease development. The lower production of short chain fatty acids (SCFAs) under dysbiosis status leads to lipid homeostasis deregulation and decreases Angptl4 release and AMPK activation in the adipose tissue, promoting higher lipid storage (adipocyte hypertrophy) and cholesterol levels. Also, low SCFA generation reduces GPR41 and GPR43 receptor activation at the adipose tissue (increasing leptin release and leptin receptor resistance) and intestinal levels, reducing the release of GLP-1 and YPP. Therefore, lower satiety sensation and energy expenditure occur, promoting a weight gaining environment mediated by higher food intake and lipid storage, developing dyslipemia. In this context, higher glucose levels, together with higher free fatty acids in the bloodstream, promote glycolipotoxicity, provoking a reduction in insulin released, insulin receptor resistance, advanced glycation products (AGEs) and type 2 diabetes. Intestinal dysbiosis and low SCFAs reduce bacterial biodiversity, increasing lipopolysaccharide (LPS)-producing bacteria and intestinal barrier permeability. Higher amounts of LPS pass to the bloodstream (endotoxemia), causing a low-grade chronic inflammatory state characterized by higher levels of leptin, IL-1β, IL-6 and TNF-α, together with a reduced release of adiponectin and IL-10. At the brain and neuronal levels, the generated insulin resistance, low-grade chronic inflammation, leptin resistance, AGE production and LPS increase directly impact the secretase enzymes and tau hyperphosphorylation, creating an enabling environment for β-amyloid senile plaque and tau tangled formations and, as a consequence, Alzheimer's initiation, development and maintenance.
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Affiliation(s)
- Víctor Navalón-Monllor
- Vithas Aguas Vivas Hospital, Carretera Alzira-Tavernes de Valldigna CV-50, Km 12, 46740, Carcaixent, Valencia, Spain
| | - Laura Soriano-Romaní
- Ainia Technological Centre, Calle Benjamin Franklin 5-11, Parque Tecnológico de Valencia, E46980, 15 Paterna, Valencia, Spain.
| | - Mariana Silva
- Bioactivity and Nutritional Immunology Group (BIOINUT), Faculty of Health Science, Universidad Internacional de Valencia (VIU), Calle Pintor Sorolla 21, E46002, Valencia, Spain
| | - María-Carmen López de Las Hazas
- Laboratory of Epigenetics of Lipid Metabolism, Instituto Madrileño de Estudios Avanzados (IMDEA)-Alimentación, CEI UAM+CSIC, 28049 Madrid, Spain
| | | | - Teodoro Suárez Diéguez
- Academic Area of Nutrition, Institute of Health Sciences, Autonomous University of the State of Hidalgo, Abasolo 600, Colonia Centro, Pachuca de Soto, E42000, Hidalgo, Mexico
| | - Pere Morell Esteve
- Bioactivity and Nutritional Immunology Group (BIOINUT), Faculty of Health Science, Universidad Internacional de Valencia (VIU), Calle Pintor Sorolla 21, E46002, Valencia, Spain
| | - Juan Antonio Nieto
- Ainia Technological Centre, Calle Benjamin Franklin 5-11, Parque Tecnológico de Valencia, E46980, 15 Paterna, Valencia, Spain.
- Bioactivity and Nutritional Immunology Group (BIOINUT), Faculty of Health Science, Universidad Internacional de Valencia (VIU), Calle Pintor Sorolla 21, E46002, Valencia, Spain
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Mitchell SB, Hung YH, Thorn TL, Zou J, Baser F, Gulec S, Cheung C, Aydemir TB. Sucrose-induced hyperglycemia dysregulates intestinal zinc metabolism and integrity: risk factors for chronic diseases. Front Nutr 2023; 10:1220533. [PMID: 37637953 PMCID: PMC10450956 DOI: 10.3389/fnut.2023.1220533] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 07/31/2023] [Indexed: 08/29/2023] Open
Abstract
Objective Zinc is an essential micronutrient that is critical for many physiological processes, including glucose metabolism, regulation of inflammation, and intestinal barrier function. Further, zinc dysregulation is associated with an increased risk of chronic inflammatory diseases such as type II diabetes, obesity, and inflammatory bowel disease. However, whether altered zinc status is a symptom or cause of disease onset remains unclear. Common symptoms of these three chronic diseases include the onset of increased intestinal permeability and zinc dyshomeostasis. The specific focus of this work is to investigate how dietary sources of intestinal permeability, such as high sucrose consumption, impact transporter-mediated zinc homeostasis and subsequent zinc-dependent physiology contributing to disease development. Method We used in vivo subchronic sucrose treatment, ex vivo intestinal organoid culture, and in vitro cell systems. We analyze the alterations in zinc metabolism and intestinal permeability and metabolic outcomes. Results We found that subchronic sucrose treatment resulted in systemic changes in steady-state zinc distribution and increased 65Zn transport (blood-to-intestine) along with greater ZIP14 expression at the basolateral membrane of the intestine. Further, sucrose treatment enhanced cell survival of intestinal epithelial cells, activation of the EGFR-AKT-STAT3 pathway, and intestinal permeability. Conclusion Our work suggests that subchronic high sucrose consumption alters systemic and intestinal zinc homeostasis linking diet-induced changes in zinc homeostasis to the intestinal permeability and onset of precursors for chronic disease.
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Affiliation(s)
| | - Yu-Han Hung
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, United States
- College of Veterinary Medicine, Cornell University, Ithaca, NY, United States
| | - Trista Lee Thorn
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, United States
| | - Jiaqi Zou
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, United States
| | - Filiz Baser
- Molecular Nutrition and Human Physiology Laboratory, Department of Food Engineering, İzmir Institute of Technology, İzmir, Türkiye
| | - Sukru Gulec
- Molecular Nutrition and Human Physiology Laboratory, Department of Food Engineering, İzmir Institute of Technology, İzmir, Türkiye
| | - Celeste Cheung
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, United States
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Cargnin-Carvalho A, da Silva MR, Costa AB, Engel NA, Farias BX, Bressan JB, Backes KM, de Souza F, da Rosa N, de Oliveira Junior AN, Goldim MPDS, Correa MEAB, Venturini LM, Fortunato JJ, Prophiro JS, Petronilho F, Silveira PCL, Ferreira GK, Rezin GT. High concentrations of fructose cause brain damage in mice. Biochem Cell Biol 2023; 101:313-325. [PMID: 36947832 DOI: 10.1139/bcb-2022-0088] [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] [Indexed: 03/24/2023] Open
Abstract
Excessive fructose consumption is associated with the incidence of obesity and systemic inflammation, resulting in increased oxidative damage and failure to the function of brain structures. Thus, we hypothesized that fructose consumption will significantly increase inflammation, oxidative damage, and mitochondrial dysfunction in the mouse brain and, consequently, memory damage. The effects of different fructose concentrations on inflammatory and biochemical parameters in the mouse brain were evaluated. Male Swiss mice were randomized into four groups: control, with exclusive water intake, 5%, 10%, and 20% fructose group. The 10% and 20% fructose groups showed an increase in epididymal fat, in addition to higher food consumption. Inflammatory markers were increased in epididymal fat and in some brain structures. In the evaluation of oxidative damage, it was possible to observe significant increases in the hypothalamus, prefrontal cortex, and hippocampus. In the epididymal fat and in the prefrontal cortex, there was a decrease in the activity of the mitochondrial respiratory chain complexes and an increase in the striatum. Furthermore, short memory was impaired in the 10% and 20% groups but not long memory. In conclusion, excess fructose consumption can cause fat accumulation, inflammation, oxidative damage, and mitochondrial dysfunction, which can damage brain structures and consequently memory.
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Affiliation(s)
- Anderson Cargnin-Carvalho
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health ScienceUniversidade do Sul de Santa Catarina, Santa Catarina, Brazil
| | - Mariella Reinol da Silva
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health ScienceUniversidade do Sul de Santa Catarina, Santa Catarina, Brazil
| | - Ana Beatriz Costa
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health ScienceUniversidade do Sul de Santa Catarina, Santa Catarina, Brazil
| | - Nicole Alessandra Engel
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health ScienceUniversidade do Sul de Santa Catarina, Santa Catarina, Brazil
| | - Bianca Xavier Farias
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health ScienceUniversidade do Sul de Santa Catarina, Santa Catarina, Brazil
| | - Joice Benedet Bressan
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health ScienceUniversidade do Sul de Santa Catarina, Santa Catarina, Brazil
| | - Kassiane Mathiola Backes
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health ScienceUniversidade do Sul de Santa Catarina, Santa Catarina, Brazil
| | - Francielly de Souza
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health ScienceUniversidade do Sul de Santa Catarina, Santa Catarina, Brazil
| | - Naiana da Rosa
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health ScienceUniversidade do Sul de Santa Catarina, Santa Catarina, Brazil
| | - Aloir Neri de Oliveira Junior
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health ScienceUniversidade do Sul de Santa Catarina, Santa Catarina, Brazil
| | - Mariana Pereira de Souza Goldim
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health ScienceUniversidade do Sul de Santa Catarina, Santa Catarina, Brazil
| | | | - Ligia Milanez Venturini
- Laboratory of Experimental Phisiopatology, Postgraduate Program in Health Sciences, Universidade do Extremo Sul Catarinense, Santa Catarina, Brazil
| | - Jucélia Jeremias Fortunato
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health ScienceUniversidade do Sul de Santa Catarina, Santa Catarina, Brazil
| | - Josiane Somariva Prophiro
- Immunoparasitology Research Group, Postgraduate Program in Health Sciences, Universidade do Sul de Santa Catarina, Santa Catarina, Brazil
| | - Fabrícia Petronilho
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health ScienceUniversidade do Sul de Santa Catarina, Santa Catarina, Brazil
| | - Paulo Cesar Lock Silveira
- Laboratory of Experimental Phisiopatology, Postgraduate Program in Health Sciences, Universidade do Extremo Sul Catarinense, Santa Catarina, Brazil
| | | | - Gislaine Tezza Rezin
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health ScienceUniversidade do Sul de Santa Catarina, Santa Catarina, Brazil
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Guney C, Bal NB, Akar F. The impact of dietary fructose on gut permeability, microbiota, abdominal adiposity, insulin signaling and reproductive function. Heliyon 2023; 9:e18896. [PMID: 37636431 PMCID: PMC10447940 DOI: 10.1016/j.heliyon.2023.e18896] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 07/24/2023] [Accepted: 08/02/2023] [Indexed: 08/29/2023] Open
Abstract
The excessive intake of fructose in the regular human diet could be related to global increases in metabolic disorders. Sugar-sweetened soft drinks, mostly consumed by children, adolescents, and young adults, are the main source of added fructose. Dietary high-fructose can increase intestinal permeability and circulatory endotoxin by changing the gut barrier function and microbial composition. Excess fructose transports to the liver and then triggers inflammation as well as de novo lipogenesis leading to hepatic steatosis. Fructose also induces fat deposition in adipose tissue by stimulating the expression of lipogenic genes, thus causing abdominal adiposity. Activation of the inflammatory pathway by fructose in target tissues is thought to contribute to the suppression of the insulin signaling pathway producing systemic insulin resistance. Moreover, there is some evidence that high intake of fructose negatively affects both male and female reproductive systems and may lead to infertility. This review addresses dietary high-fructose-induced deteriorations that are obvious, especially in gut permeability, microbiota, abdominal fat accumulation, insulin signaling, and reproductive function. The recognition of the detrimental effects of fructose and the development of relevant new public health policies are necessary in order to prevent diet-related metabolic disorders.
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Affiliation(s)
| | | | - Fatma Akar
- Department of Pharmacology, Faculty of Pharmacy, Gazi University, Ankara, Turkey
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Cui Y, Liu H, Wang Z, Zhang H, Tian J, Wang Z, Song W, Guo H, Liu L, Tian R, Zuo X, Ren S, Zhang F, Niu R. Fructose promotes angiogenesis by improving vascular endothelial cell function and upregulating VEGF expression in cancer cells. J Exp Clin Cancer Res 2023; 42:184. [PMID: 37507736 PMCID: PMC10375648 DOI: 10.1186/s13046-023-02765-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
BACKGROUND Fructose is a very common sugar found in natural foods, while current studies demonstrate that high fructose intake is significantly associated with increased risk of multiple cancers and more aggressive tumor behavior, but the relevant mechanisms are not fully understood. METHODS Tumor-grafting experiments and in vitro angiogenesis assays were conducted to detect the effect of fructose and the conditioned medium of fructose-cultured tumor cells on biological function of vascular endothelial cells (VECs) and angiogenesis. 448 colorectal cancer specimens were utilized to analyze the relationship between Glut5 expression levels in VECs and tumor cells and microvascular density (MVD). RESULTS We found that fructose can be metabolized by VECs and activate the Akt and Src signaling pathways, thereby enhancing the proliferation, migration, and tube-forming abilities of VECs and thereby promoting angiogenesis. Moreover, fructose can also improve the expression of vascular endothelial growth factor (VEGF) by upregulating the production of reactive oxygen species (ROS) in colorectal cancer cells, thus indirectly enhancing the biological function of VECs. Furthermore, this pro-angiogenic effect of fructose metabolism has also been well validated in clinical colorectal cancer tissues and mouse models. Fructose contributes to angiogenesis in mouse subcutaneous tumor grafts, and MVD is positively correlated with Glut5 expression levels of both endothelial cells and tumor cells of human colorectal cancer specimens. CONCLUSIONS These findings establish the direct role and mechanism by which fructose promotes tumor progression through increased angiogenesis, and provide reliable evidence for a better understanding of tumor metabolic reprogramming.
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Affiliation(s)
- Yanfen Cui
- Public Laboratory, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China
| | - Hui Liu
- Public Laboratory, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China
| | - Zhaosong Wang
- Laboratory Animal Center, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China
| | - He Zhang
- Public Laboratory, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China
| | - Jianfei Tian
- Public Laboratory, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China
| | - Zhiyong Wang
- Public Laboratory, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China
| | - Weijie Song
- Laboratory Animal Center, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China
| | - Hui Guo
- Public Laboratory, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China
| | - Liming Liu
- Public Laboratory, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China
| | - Ruinan Tian
- Public Laboratory, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China
| | - Xiaoyan Zuo
- Public Laboratory, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China
| | - Sixin Ren
- Public Laboratory, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China
| | - Fei Zhang
- Public Laboratory, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China.
| | - Ruifang Niu
- Public Laboratory, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China.
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Chen Q, Ren R, Sun Y, Xu J, Yang H, Li X, Xiao Y, Li J, Lyu W. The combination of metagenome and metabolome to compare the differential effects and mechanisms of fructose and sucrose on the metabolic disorders and gut microbiota in vitro and in vivo. Food Funct 2023. [PMID: 37470119 DOI: 10.1039/d3fo02246c] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
Sucrose and fructose are the most commonly used sweeteners in the modern food industry, but there are few comparative studies on the mechanisms by which fructose and sucrose affect host health. The aim of the present study was to explain the different effects of fructose and sucrose on host metabolism from the perspective of gut microbiota. Mice were fed for 16 weeks with normal drinking water (CON), 30% fructose drinking water (CF) and 30% sucrose drinking water (SUC). Compared with fructose treatment, sucrose caused significantly higher weight gain, epididymal fat deposition, hepatic steatosis, and jejunum histological injury. Sucrose increased the abundance of LPS-producing bacteria which was positively correlated with obesity traits, while fructose increased the abundance of Lactobacillus. An in vitro fermentation experiment also showed that fructose increased the abundance of Lactobacillus, while sucrose increased the abundance of Klebsiella and Escherichia. In addition, combined with microbial functional analysis and metabolomics data, fructose led to the enhancement of carbohydrate metabolism and TCA cycle capacity, and increased the production of glutamate. The cross-cooperation network greatly influenced the microbiota (Klebsiella, Lactobacillus), metabolites (glutamate, fructose 1,6-biosphosphate, citric acid), and genes encoding enzymes (pyruvate kinase, 6-phosphofructokinase 1, fructokinase, lactate dehydrogenase, aconitate hydratase, isocitrate dehydrogenase 3), suggesting that they may be the key differential factors in the process of fructose and sucrose catabolism. Therefore, the changes in gut microbiome mediated by fructose and sucrose are important reasons for their differential effects on host health and metabolism.
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Affiliation(s)
- Qu Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China.
| | - Ruochen Ren
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China.
| | - Yue Sun
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China.
| | - Jing Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China.
| | - Hua Yang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China.
| | - Xiaoqiong Li
- Institute of Food Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou, China.
| | - Yingping Xiao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China.
| | - Jinjun Li
- Institute of Food Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou, China.
| | - Wentao Lyu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China.
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Hendriks AD, Veltien A, Voogt IJ, Heerschap A, Scheenen TWJ, Prompers JJ. Glucose versus fructose metabolism in the liver measured with deuterium metabolic imaging. Front Physiol 2023; 14:1198578. [PMID: 37465695 PMCID: PMC10351417 DOI: 10.3389/fphys.2023.1198578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 06/20/2023] [Indexed: 07/20/2023] Open
Abstract
Chronic intake of high amounts of fructose has been linked to the development of metabolic disorders, which has been attributed to the almost complete clearance of fructose by the liver. However, direct measurement of hepatic fructose uptake is complicated by the fact that the portal vein is difficult to access. Here we present a new, non-invasive method to measure hepatic fructose uptake and metabolism with the use of deuterium metabolic imaging (DMI) upon administration of [6,6'-2H2]fructose. Using both [6,6'-2H2]glucose and [6,6'-2H2]fructose, we determined differences in the uptake and metabolism of glucose and fructose in the mouse liver with dynamic DMI. The deuterated compounds were administered either by fast intravenous (IV) bolus injection or by slow IV infusion. Directly after IV bolus injection of [6,6'-2H2]fructose, a more than two-fold higher initial uptake and subsequent 2.5-fold faster decay of fructose was observed in the mouse liver as compared to that of glucose after bolus injection of [6,6'-2H2]glucose. In contrast, after slow IV infusion of fructose, the 2H fructose/glucose signal maximum in liver spectra was lower compared to the 2H glucose signal maximum after slow infusion of glucose. With both bolus injection and slow infusion protocols, deuterium labeling of water was faster with fructose than with glucose. These observations are in line with a higher extraction and faster turnover of fructose in the liver, as compared with glucose. DMI with [6,6'-2H2]glucose and [6,6'-2H2]fructose could potentially contribute to a better understanding of healthy human liver metabolism and aberrations in metabolic diseases.
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Affiliation(s)
- Arjan D. Hendriks
- Center of Image Sciences, University Medical Center Utrecht, Utrecht, Netherlands
| | - Andor Veltien
- Department of Medical Imaging (Radiology), Radboud University Medical Center, Nijmegen, Netherlands
| | | | - Arend Heerschap
- Department of Medical Imaging (Radiology), Radboud University Medical Center, Nijmegen, Netherlands
| | - Tom W. J. Scheenen
- Department of Medical Imaging (Radiology), Radboud University Medical Center, Nijmegen, Netherlands
| | - Jeanine J. Prompers
- Center of Image Sciences, University Medical Center Utrecht, Utrecht, Netherlands
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Schofield JH, Schafer ZT. Regulators mount up: the metabolic roles of apoptotic proteins. FRONTIERS IN CELL DEATH 2023; 2:1223926. [PMID: 37521407 PMCID: PMC10373711 DOI: 10.3389/fceld.2023.1223926] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
The induction of apoptosis, a programmed cell death pathway governed by activation of caspases, can result in fundamental changes in metabolism that either facilitate or restrict the execution of cell death. In addition, metabolic adaptations can significantly impact whether cells in fact initiate the apoptotic cascade. In this mini-review, we will highlight and discuss the interconnectedness of apoptotic regulation and metabolic alterations, two biological outcomes whose regulators are intertwined.
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Uehara K, Santoleri D, Whitlock AEG, Titchenell PM. Insulin Regulation of Hepatic Lipid Homeostasis. Compr Physiol 2023; 13:4785-4809. [PMID: 37358513 PMCID: PMC10760932 DOI: 10.1002/cphy.c220015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
The incidence of obesity, insulin resistance, and type II diabetes (T2DM) continues to rise worldwide. The liver is a central insulin-responsive metabolic organ that governs whole-body metabolic homeostasis. Therefore, defining the mechanisms underlying insulin action in the liver is essential to our understanding of the pathogenesis of insulin resistance. During periods of fasting, the liver catabolizes fatty acids and stored glycogen to meet the metabolic demands of the body. In postprandial conditions, insulin signals to the liver to store excess nutrients into triglycerides, cholesterol, and glycogen. In insulin-resistant states, such as T2DM, hepatic insulin signaling continues to promote lipid synthesis but fails to suppress glucose production, leading to hypertriglyceridemia and hyperglycemia. Insulin resistance is associated with the development of metabolic disorders such as cardiovascular and kidney disease, atherosclerosis, stroke, and cancer. Of note, nonalcoholic fatty liver disease (NAFLD), a spectrum of diseases encompassing fatty liver, inflammation, fibrosis, and cirrhosis, is linked to abnormalities in insulin-mediated lipid metabolism. Therefore, understanding the role of insulin signaling under normal and pathologic states may provide insights into preventative and therapeutic opportunities for the treatment of metabolic diseases. Here, we provide a review of the field of hepatic insulin signaling and lipid regulation, including providing historical context, detailed molecular mechanisms, and address gaps in our understanding of hepatic lipid regulation and the derangements under insulin-resistant conditions. © 2023 American Physiological Society. Compr Physiol 13:4785-4809, 2023.
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Affiliation(s)
- Kahealani Uehara
- Institute of Diabetes, Obesity, and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Biochemistry and Molecular Biophysics Graduate Group, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Dominic Santoleri
- Institute of Diabetes, Obesity, and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Biochemistry and Molecular Biophysics Graduate Group, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Anna E. Garcia Whitlock
- Institute of Diabetes, Obesity, and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Paul M. Titchenell
- Institute of Diabetes, Obesity, and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Department of Physiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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Yoon CK, Lee SH, Zhang J, Lee HY, Kim MK, Seok YJ. HPr prevents FruR-mediated facilitation of RNA polymerase binding to the fru promoter in Vibrio cholerae. Nucleic Acids Res 2023; 51:5432-5448. [PMID: 36987873 PMCID: PMC10287919 DOI: 10.1093/nar/gkad220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 02/17/2023] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
Phosphorylation state-dependent interactions of the phosphoenolpyruvate (PEP):carbohydrate phosphotransferase system (PTS) components with transcription factors play a key role in carbon catabolite repression (CCR) by glucose in bacteria. Glucose inhibits the PTS-dependent transport of fructose and is preferred over fructose in Vibrio cholerae, but the mechanism is unknown. We have recently shown that, contrary to Escherichia coli, the fructose-dependent transcriptional regulator FruR acts as an activator of the fru operon in V. cholerae and binding of the FruR-fructose 1-phosphate (F1P) complex to an operator facilitates RNA polymerase (RNAP) binding to the fru promoter. Here we show that, in the presence of glucose, dephosphorylated HPr, a general PTS component, binds to FruR. Whereas HPr does not affect DNA-binding affinity of FruR, regardless of the presence of F1P, it prevents the FruR-F1P complex from facilitating the binding of RNAP to the fru promoter. Structural and biochemical analyses of the FruR-HPr complex identify key residues responsible for the V. cholerae-specific FruR-HPr interaction not observed in E. coli. Finally, we reveal how the dephosphorylated HPr interacts with FruR in V. cholerae, whereas the phosphorylated HPr binds to CcpA, which is a global regulator of CCR in Bacillus subtilis and shows structural similarity to FruR.
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Affiliation(s)
- Chang-Kyu Yoon
- School of Biological Sciences and Institute of Microbiology, Seoul National University, Seoul, 08826, Korea
- Research Institute of Basic Science, Seoul National University, Seoul, 08826, Korea
| | - Seung-Hwan Lee
- School of Biological Sciences and Institute of Microbiology, Seoul National University, Seoul, 08826, Korea
| | - Jing Zhang
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, 56212, Korea
| | - Hye-Young Lee
- School of Biological Sciences and Institute of Microbiology, Seoul National University, Seoul, 08826, Korea
- Research Institute of Basic Science, Seoul National University, Seoul, 08826, Korea
| | - Min-Kyu Kim
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, 56212, Korea
| | - Yeong-Jae Seok
- School of Biological Sciences and Institute of Microbiology, Seoul National University, Seoul, 08826, Korea
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Jiang X, Hu R, Huang Y, Xu Y, Zheng Z, Shi Y, Miao J, Liu Y. Fructose Aggravates Copper-deficiency-induced Non-alcoholic Fatty Liver Disease. J Nutr Biochem 2023:109402. [PMID: 37311490 DOI: 10.1016/j.jnutbio.2023.109402] [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: 07/11/2022] [Revised: 05/28/2023] [Accepted: 06/07/2023] [Indexed: 06/15/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD), is the most common cause of chronic liver disease, affecting 24% of the global population. Accumulating evidence demonstrates that copper deficiency (CuD) is implicated in the development of NAFLD, besides, high fructose consumption by promoting inflammation contributes to NAFLD. However, how CuD and/or fructose (Fru) causes NAFLD is not clearly delineated. The present study aims to investigate the role of CuD and/or fructose supplement on hepatic steatosis and hepatic injury. We established a CuD rat model by feeding weaning male Sprague-Dawley rats for 4 weeks with CuD diet. Fructose was supplemented in drinking water. We found the promoting role of CuD or Fructose (Fru) in the progress of NAFLD, which was aggravated by combination of the two. Furthermore, we presented the alteration of hepatic lipid profiles (including content, composition and saturation), especially ceramide (Cer), cardiolipin (CL), phosphatidylcholine (PC) and phosphatidylethanolamine (PE) was closely associated with CuD and/or Fru fed induced-NAFLD in rat models. In conclusion, insufficient copper intake or excessive fructose supplement resulted in adverse effects on the hepatic lipid profile, and fructose supplement causes a further hepatic injury in CuD-induced NAFLD, which illuminated a better understanding of NAFLD.
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Affiliation(s)
- Xin Jiang
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, P.R. China
| | - Ruixiang Hu
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Jinan University, Guangzhou 510630, P.R. China
| | - Yipu Huang
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, P.R. China
| | - Yi Xu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, P.R. China
| | - Zhirui Zheng
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, P.R. China
| | - Yuansen Shi
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, P.R. China
| | - Ji Miao
- Division of Endocrinology, Boston Children's Hospital, Boston, MA 02115, USA; Department of Medicine, Harvard Medical School, Boston, MA 02115, USA.
| | - Yun Liu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, P.R. China.
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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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Buziau AM, Scheijen JL, Stehouwer CD, Schalkwijk CG, Brouwers MC. Effects of fructose added to an oral glucose tolerance test on plasma glucose excursions in healthy adults. Metabol Open 2023; 18:100245. [PMID: 37251289 PMCID: PMC10209703 DOI: 10.1016/j.metop.2023.100245] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 05/09/2023] [Accepted: 05/11/2023] [Indexed: 05/31/2023] Open
Abstract
Background and objective Previous experimental studies have shown that fructose interacts with glucose metabolism by increasing hepatic glucose uptake. However, human studies investigating the effects of small ('catalytic') amounts of fructose, added to an oral glucose load, on plasma glucose levels remain inconclusive. The aim of this study, therefore, was to repeat and extend these previous studies by examining the plasma glucose response during a 75 g oral glucose tolerance test (OGTT) with the addition of different doses of fructose. Methods Healthy adults (n = 13) received an OGTT without addition of fructose and OGTTs with addition of different doses of fructose (1, 2, 5, 7.5 and 15 g) in a random order, on six separate occasions. Plasma glucose levels were measured every 15 min for 120 min during the study. Findings The plasma glucose incremental area under the curve (iAUC) of the OGTT without addition of fructose was not significantly different from any OGTT with fructose (p ≥ 0.2 for all fructose doses). Similar results were observed when these data were clustered with data from a similar, previous study (pooled mean difference: 10.6; 95%CI: 45.0; 23.8 for plasma glucose iAUC of the OGTT without addition of fructose versus an OGTT with 5 g fructose; fixed-effect meta-analysis, n = 38). Of interest, serum fructose increased from 4.8 μmol/L (interquartile range: 4.1-5.9) at baseline to 5.3 μmol/L (interquartile range: 4.8-7.5) at T = 60 min during an OGTT without addition of fructose (p = 0.002). Conclusion Low doses of fructose added to an OGTT do not affect plasma glucose levels in healthy adults. The role of endogenous fructose production, as a potential explanation of these null-findings, deserves further investigation.
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Affiliation(s)
- Amée M. Buziau
- Department of Internal Medicine, Division of Endocrinology and Metabolic Disease, Maastricht University Medical Center+, Maastricht, the Netherlands
- CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, the Netherlands
- Department of Internal Medicine, Division of General Internal Medicine, Laboratory for Metabolism and Vascular Medicine, Maastricht University, Maastricht, the Netherlands
| | - Jean L.J.M. Scheijen
- CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, the Netherlands
- Department of Internal Medicine, Division of General Internal Medicine, Laboratory for Metabolism and Vascular Medicine, Maastricht University, Maastricht, the Netherlands
| | - Coen D.A. Stehouwer
- CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, the Netherlands
- Department of Internal Medicine, Maastricht University Medical Center+, Maastricht, the Netherlands
| | - Casper G. Schalkwijk
- CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, the Netherlands
- Department of Internal Medicine, Division of General Internal Medicine, Laboratory for Metabolism and Vascular Medicine, Maastricht University, Maastricht, the Netherlands
| | - Martijn C.G.J. Brouwers
- Department of Internal Medicine, Division of Endocrinology and Metabolic Disease, Maastricht University Medical Center+, Maastricht, the Netherlands
- CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, the Netherlands
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Aguayo-Patrón SV, Trujillo-Rivera OA, Cornejo-Granados F, Ochoa-Leyva A, Calderón de la Barca AM. HLA-Haplotypes Influence Microbiota Structure in Northwestern Mexican Schoolchildren Predisposed for Celiac Disease or Type 1 Diabetes. Microorganisms 2023; 11:1412. [PMID: 37374914 DOI: 10.3390/microorganisms11061412] [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: 05/02/2023] [Revised: 05/20/2023] [Accepted: 05/24/2023] [Indexed: 06/29/2023] Open
Abstract
To contribute to and elucidate the participation of microbiota in celiac disease (CD) and type 1 diabetes (T1D) development, we evaluated the influence of HLA haplotypes, familial risk, and diet on the microbiota of schoolchildren. We conducted a cross-sectional study on 821 apparently healthy schoolchildren, genotyping HLA DQ2/DQ8, and registering familial risk. We analyzed the fecal microbiota using 16S rRNA gene sequencing, and autoantibodies for CD or T1D by ELISA. After analyses, we created three groups: at-high-risk children (Group 1), at-high-risk children plus autoantibodies (Group 2), and nonrisk children (Group 3). HLA influenced the microbiota of Groups 1 and 2, decreasing phylogenetic diversity in comparison to Group 3. The relative abundance of Oscillospiraceae UCG_002, Parabacteroides, Akkermansia, and Alistipes was higher in Group 3 compared to Groups 1 and 2. Moreover, Oscillospiraceae UCG_002 and Parabacteroides were protectors of the autoantibodies' positivity (RRR = 0.441 and RRR = 0.034, respectively). Conversely, Agathobacter was higher in Group 2, and Lachnospiraceae was in both Groups 1 and 2. Lachnospiraceae correlated positively with the sucrose degradation pathway, while the principal genera in Group 3 were associated with amino acid biosynthesis pathways. In summary, HLA and familial risk influence microbiota composition and functionality in children predisposed to CD or T1D, increasing their autoimmunity risk.
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Affiliation(s)
- Sandra V Aguayo-Patrón
- Coordinación de Nutrición, Centro de Investigación en Alimentación y Desarrollo A.C., Hermosillo 83304, Mexico
| | - Omar A Trujillo-Rivera
- Coordinación de Nutrición, Centro de Investigación en Alimentación y Desarrollo A.C., Hermosillo 83304, Mexico
| | - Fernanda Cornejo-Granados
- Departamento de Microbiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de Mexico, Cuernavaca 62210, Mexico
| | - Adrian Ochoa-Leyva
- Departamento de Microbiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de Mexico, Cuernavaca 62210, Mexico
| | - Ana M Calderón de la Barca
- Coordinación de Nutrición, Centro de Investigación en Alimentación y Desarrollo A.C., Hermosillo 83304, Mexico
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Meier KHU, Trouillon J, Li H, Lang M, Fuhrer T, Zamboni N, Sunagawa S, Macpherson AJ, Sauer U. Metabolic landscape of the male mouse gut identifies different niches determined by microbial activities. Nat Metab 2023:10.1038/s42255-023-00802-1. [PMID: 37217759 DOI: 10.1038/s42255-023-00802-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 04/06/2023] [Indexed: 05/24/2023]
Abstract
Distinct niches of the mammalian gut are populated by diverse microbiota, but the contribution of spatial variation to intestinal metabolism remains unclear. Here we present a map of the longitudinal metabolome along the gut of healthy colonized and germ-free male mice. With this map, we reveal a general shift from amino acids in the small intestine to organic acids, vitamins and nucleotides in the large intestine. We compare the metabolic landscapes in colonized versus germ-free mice to disentangle the origin of many metabolites in different niches, which in some cases allows us to infer the underlying processes or identify the producing species. Beyond the known impact of diet on the small intestinal metabolic niche, distinct spatial patterns suggest specific microbial influence on the metabolome in the small intestine. Thus, we present a map of intestinal metabolism and identify metabolite-microbe associations, which provide a basis to connect the spatial occurrence of bioactive compounds to host or microorganism metabolism.
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Affiliation(s)
- Karin H U Meier
- Institute of Molecular Systems Biology, ETH Zürich, Zürich, Switzerland
| | - Julian Trouillon
- Institute of Molecular Systems Biology, ETH Zürich, Zürich, Switzerland
| | - Hai Li
- Department for Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Melanie Lang
- Institute of Microbiology, ETH Zürich, Zürich, Switzerland
| | - Tobias Fuhrer
- Institute of Molecular Systems Biology, ETH Zürich, Zürich, Switzerland
| | - Nicola Zamboni
- Institute of Molecular Systems Biology, ETH Zürich, Zürich, Switzerland
| | | | - Andrew J Macpherson
- Department for Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Uwe Sauer
- Institute of Molecular Systems Biology, ETH Zürich, Zürich, Switzerland.
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Tong W, Hannou SA, Sargsyan A, Zhang GF, Grimsrud PA, Astapova I, Herman MA. "Metformin Impairs Intestinal Fructose Metabolism". BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.17.537251. [PMID: 37131695 PMCID: PMC10153158 DOI: 10.1101/2023.04.17.537251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Objective To investigate the effects of metformin on intestinal carbohydrate metabolism in vivo. Method Male mice preconditioned with a high-fat, high-sucrose diet were treated orally with metformin or a control solution for two weeks. Fructose metabolism, glucose production from fructose, and production of other fructose-derived metabolites were assessed using stably labeled fructose as a tracer. Results Metformin treatment decreased intestinal glucose levels and reduced incorporation of fructose-derived metabolites into glucose. This was associated with decreased intestinal fructose metabolism as indicated by decreased enterocyte F1P levels and diminished labeling of fructose-derived metabolites. Metformin also reduced fructose delivery to the liver. Proteomic analysis revealed that metformin coordinately down-regulated proteins involved carbohydrate metabolism including those involved in fructolysis and glucose production within intestinal tissue. Conclusion Metformin reduces intestinal fructose metabolism, and this is associated with broad-based changes in intestinal enzyme and protein levels involved in sugar metabolism indicating that metformin's effects on sugar metabolism are pleiotropic.
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Affiliation(s)
- Wenxin Tong
- Duke Molecular Physiology Institute, Duke University, Durham, North Carolina, USA
| | - Sarah A. Hannou
- Duke Molecular Physiology Institute, Duke University, Durham, North Carolina, USA
- Division of Endocrinology, Diabetes, and Metabolism, Baylor College of Medicine, Houston, Texas, USA
| | - Ashot Sargsyan
- Duke Molecular Physiology Institute, Duke University, Durham, North Carolina, USA
| | - Guo-Fang Zhang
- Duke Molecular Physiology Institute, Duke University, Durham, North Carolina, USA
- Division of Endocrinology, Metabolism, and Nutrition, Duke University, Durham, North Carolina, USA
| | - Paul A. Grimsrud
- Duke Molecular Physiology Institute, Duke University, Durham, North Carolina, USA
- Division of Endocrinology, Metabolism, and Nutrition, Duke University, Durham, North Carolina, USA
| | - Inna Astapova
- Duke Molecular Physiology Institute, Duke University, Durham, North Carolina, USA
- Division of Endocrinology, Metabolism, and Nutrition, Duke University, Durham, North Carolina, USA
- Division of Endocrinology, Diabetes, and Metabolism, Baylor College of Medicine, Houston, Texas, USA
| | - Mark A. Herman
- Duke Molecular Physiology Institute, Duke University, Durham, North Carolina, USA
- Division of Endocrinology, Metabolism, and Nutrition, Duke University, Durham, North Carolina, USA
- Division of Endocrinology, Diabetes, and Metabolism, Baylor College of Medicine, Houston, Texas, USA
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50
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Geidl-Flueck B, Gerber PA. Fructose drives de novo lipogenesis affecting metabolic health. J Endocrinol 2023; 257:e220270. [PMID: 36753292 PMCID: PMC10083579 DOI: 10.1530/joe-22-0270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 02/08/2023] [Indexed: 02/09/2023]
Abstract
Despite the existence of numerous studies supporting a pathological link between fructose consumption and the development of the metabolic syndrome and its sequelae, such as non-alcoholic fatty liver disease (NAFLD), this link remains a contentious issue. With this article, we shed a light on the impact of sugar/fructose intake on hepatic de novo lipogenesis (DNL), an outcome parameter known to be dysregulated in subjects with type 2 diabetes and/or NAFLD. In this review, we present findings from human intervention studies using physiological doses of sugar as well as mechanistic animal studies. There is evidence from both human and animal studies that fructose is a more potent inducer of hepatic lipogenesis than glucose. This is most likely due to the liver's prominent physiological role in fructose metabolism, which may be disrupted under pathological conditions by increased hepatic expression of fructolytic and lipogenic enzymes. Increased DNL may not only contribute to ectopic fat deposition (i.e. in the liver), but it may also impair several metabolic processes through DNL-related fatty acids (e.g. beta-cell function, insulin secretion, or insulin sensitivity).
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Affiliation(s)
- Bettina Geidl-Flueck
- 1Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH), Switzerland
| | - Philipp A Gerber
- 1Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH), Switzerland
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