1
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Liao CC, Hsieh CC, Shia WC, Chou MY, Huang CC, Lin JH, Lee SH, Sung HH. Refined protocol for newly onset identification in non-obese diabetic mice: an animal-friendly, cost-effective, and efficient alternative. Lab Anim Res 2024; 40:16. [PMID: 38649958 PMCID: PMC11034171 DOI: 10.1186/s42826-024-00202-w] [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: 01/19/2024] [Revised: 04/01/2024] [Accepted: 04/04/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND Therapeutic interventions for diabetes are most effective when administered in the newly onset phase, yet determining the exact onset moment can be elusive in practice. Spontaneous autoimmune diabetes among NOD mice appears randomly between 12 and 32 weeks of age with an incidence range from 60 to 90%. Furthermore, the disease often progresses rapidly to severe diabetes within days, resulting in a very short window of newly onset phase, that poses significant challenge in early diagnosis. Conventionally, extensive blood glucose (BG) testing is typically required on large cohorts throughout several months to conduct prospective survey. We incorporated ultrasensitive urine glucose (UG) testing into an ordinary BG survey process, initially aiming to elucidate the lag period required for excessive glucose leaking from blood to urine during diabetes progression in the mouse model. RESULTS The observations unexpectedly revealed that small amounts of glucose detected in the urine often coincide with, sometimes even a couple days prior than elevated BG is diagnosed. Accordingly, we conducted the UG-based survey protocol in another cohort that was validated to accurately identified every individual near onset, who could then be confirmed by following few BG tests to fulfill the consecutive BG + criteria. This approach required fewer than 95 BG tests, compared to over 700 tests with traditional BG survey, to diagnose all the 37-38 diabetic mice out of total 60. The average BG level at diagnosis was slightly below 350 mg/dl, lower than the approximately 400 mg/dl observed with conventional BG monitoring. CONCLUSIONS We demonstrated a near perfect correlation between BG + and ultrasensitive UG + results in prospective survey with no lag period detected under twice weekly of testing frequency. This led to the refined protocol based on surveying with noninvasive UG testing, allowing for the early identification of newly onset diabetic mice with only a few BG tests required per mouse. This protocol significantly reduces the need for extensive blood sampling, lancet usage, labor, and animal distress, aligning with the 3Rs principle. It presents a convenient, accurate, and animal-friendly alternative for early diabetes diagnosis, facilitating research on diagnosis, pathogenesis, prevention, and treatment.
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Affiliation(s)
- Chia-Chi Liao
- National Laboratory Animal Center, National Applied Research Laboratories, Taipei, Taiwan
| | - Chia-Chun Hsieh
- National Laboratory Animal Center, National Applied Research Laboratories, Taipei, Taiwan
- Department of Microbiology and Immunology, National Defense Medical Center, Taipei, Taiwan
| | - Wei-Chung Shia
- Molecular Medicine Laboratory, Department of Research, Changhua Christian Hospital, Changhua, Taiwan
| | - Min-Yuan Chou
- Biomedical Technology and Device Research Lab, Industrial Technology Research Institute, Hsinchu, Taiwan
| | - Chuan-Chuan Huang
- Biomedical Technology and Device Research Lab, Industrial Technology Research Institute, Hsinchu, Taiwan
- Graduate Institute of Immunology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Jhih-Hong Lin
- National Laboratory Animal Center, National Applied Research Laboratories, Tainan, Taiwan
| | - Shu-Hsien Lee
- National Laboratory Animal Center, National Applied Research Laboratories, Tainan, Taiwan
| | - Hsiang-Hsuan Sung
- National Laboratory Animal Center, National Applied Research Laboratories, Taipei, Taiwan.
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2
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Schiffman SS, Scholl EH, Furey TS, Nagle HT. Toxicological and pharmacokinetic properties of sucralose-6-acetate and its parent sucralose: in vitro screening assays. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2023; 26:307-341. [PMID: 37246822 DOI: 10.1080/10937404.2023.2213903] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The purpose of this study was to determine the toxicological and pharmacokinetic properties of sucralose-6-acetate, a structural analog of the artificial sweetener sucralose. Sucralose-6-acetate is an intermediate and impurity in the manufacture of sucralose, and recent commercial sucralose samples were found to contain up to 0.67% sucralose-6-acetate. Studies in a rodent model found that sucralose-6-acetate is also present in fecal samples with levels up to 10% relative to sucralose which suggest that sucralose is also acetylated in the intestines. A MultiFlow® assay, a high-throughput genotoxicity screening tool, and a micronucleus (MN) test that detects cytogenetic damage both indicated that sucralose-6-acetate is genotoxic. The mechanism of action was classified as clastogenic (produces DNA strand breaks) using the MultiFlow® assay. The amount of sucralose-6-acetate in a single daily sucralose-sweetened drink might far exceed the threshold of toxicological concern for genotoxicity (TTCgenotox) of 0.15 µg/person/day. The RepliGut® System was employed to expose human intestinal epithelium to sucralose-6-acetate and sucralose, and an RNA-seq analysis was performed to determine gene expression induced by these exposures. Sucralose-6-acetate significantly increased the expression of genes associated with inflammation, oxidative stress, and cancer with greatest expression for the metallothionein 1 G gene (MT1G). Measurements of transepithelial electrical resistance (TEER) and permeability in human transverse colon epithelium indicated that sucralose-6-acetate and sucralose both impaired intestinal barrier integrity. Sucralose-6-acetate also inhibited two members of the cytochrome P450 family (CYP1A2 and CYP2C19). Overall, the toxicological and pharmacokinetic findings for sucralose-6-acetate raise significant health concerns regarding the safety and regulatory status of sucralose itself.
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Affiliation(s)
- Susan S Schiffman
- Joint Department of Biomedical Engineering, University of North Carolina/North Carolina State University, Raleigh, NC, USA
| | | | - Terrence S Furey
- Departments of Genetics and Biology, University of North Carolina, Chapel Hill, NC, USA
| | - H Troy Nagle
- Joint Department of Biomedical Engineering, University of North Carolina/North Carolina State University, Raleigh, NC, USA
- Department of Electrical and Computer Engineering, North Carolina State University, Raleigh, NC, USA
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3
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Nobs SP, Elinav E. Nonnutritive sweeteners and glucose intolerance: Where do we go from here? J Clin Invest 2023; 133:171057. [PMID: 37183822 PMCID: PMC10178830 DOI: 10.1172/jci171057] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023] Open
Affiliation(s)
- Samuel Philip Nobs
- Systems Immunology Department, Weizmann Institute of Science, Rehovot, Israel
| | - Eran Elinav
- Systems Immunology Department, Weizmann Institute of Science, Rehovot, Israel
- Division of Microbiome and Cancer, Deutsches Krebsforschungszentrum (DKFZ), Heidelberg, Germany
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4
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Gaba R, Kaur N, Urvika, Pal A, Sharma D. Study of intermolecular interactions present in ternary mixtures containing sugar alcohol and choline chloride at different temperatures. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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5
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Suez J, Cohen Y, Valdés-Mas R, Mor U, Dori-Bachash M, Federici S, Zmora N, Leshem A, Heinemann M, Linevsky R, Zur M, Ben-Zeev Brik R, Bukimer A, Eliyahu-Miller S, Metz A, Fischbein R, Sharov O, Malitsky S, Itkin M, Stettner N, Harmelin A, Shapiro H, Stein-Thoeringer CK, Segal E, Elinav E. Personalized microbiome-driven effects of non-nutritive sweeteners on human glucose tolerance. Cell 2022; 185:3307-3328.e19. [PMID: 35987213 DOI: 10.1016/j.cell.2022.07.016] [Citation(s) in RCA: 88] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 04/26/2022] [Accepted: 07/18/2022] [Indexed: 02/06/2023]
Abstract
Non-nutritive sweeteners (NNS) are commonly integrated into human diet and presumed to be inert; however, animal studies suggest that they may impact the microbiome and downstream glycemic responses. We causally assessed NNS impacts in humans and their microbiomes in a randomized-controlled trial encompassing 120 healthy adults, administered saccharin, sucralose, aspartame, and stevia sachets for 2 weeks in doses lower than the acceptable daily intake, compared with controls receiving sachet-contained vehicle glucose or no supplement. As groups, each administered NNS distinctly altered stool and oral microbiome and plasma metabolome, whereas saccharin and sucralose significantly impaired glycemic responses. Importantly, gnotobiotic mice conventionalized with microbiomes from multiple top and bottom responders of each of the four NNS-supplemented groups featured glycemic responses largely reflecting those noted in respective human donors, which were preempted by distinct microbial signals, as exemplified by sucralose. Collectively, human NNS consumption may induce person-specific, microbiome-dependent glycemic alterations, necessitating future assessment of clinical implications.
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Affiliation(s)
- Jotham Suez
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel.
| | - Yotam Cohen
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Rafael Valdés-Mas
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Uria Mor
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Mally Dori-Bachash
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Sara Federici
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Niv Zmora
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel; Research Center for Digestive Tract and Liver Diseases, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6423906, Israel; Internal Medicine Department, Tel Aviv Sourasky Medical Center, Tel Aviv 6423906, Israel
| | - Avner Leshem
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel; Department of Surgery, Tel Aviv Sourasky Medical Center, Tel Aviv 6423906, Israel
| | - Melina Heinemann
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Raquel Linevsky
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Maya Zur
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Rotem Ben-Zeev Brik
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Aurelie Bukimer
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Shimrit Eliyahu-Miller
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Alona Metz
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Ruthy Fischbein
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Olga Sharov
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Sergey Malitsky
- Department of Biological Services, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Maxim Itkin
- Department of Biological Services, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Noa Stettner
- Department of Veterinary Resources, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Alon Harmelin
- Department of Veterinary Resources, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Hagit Shapiro
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Christoph K Stein-Thoeringer
- Microbiome & Cancer Division, DKFZ, Heidelberg, Germany; National Center for Tumor Diseases (NCT) Heidelberg, Heidelberg, Germany
| | - Eran Segal
- Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot 7610001, Israel; Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 7610001, Israel.
| | - Eran Elinav
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel; Microbiome & Cancer Division, DKFZ, Heidelberg, Germany.
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6
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Yu Z, Guo J. Non-caloric artificial sweeteners exhibit antimicrobial activity against bacteria and promote bacterial evolution of antibiotic tolerance. JOURNAL OF HAZARDOUS MATERIALS 2022; 433:128840. [PMID: 35398799 DOI: 10.1016/j.jhazmat.2022.128840] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/15/2022] [Accepted: 03/31/2022] [Indexed: 06/14/2023]
Abstract
Non-caloric artificial sweeteners are being widely used as safe table sugar substitutes with highly intensive sweetness but low calories. Previous studies have suggested that some of the sweeteners can alter the gut microbiota composition and promote horizontal transfer of antibiotic resistance genes across bacterial genera. However, little is known about whether these sweeteners could show antibiotic-like antimicrobial activity against bacteria, especially gut relevant bacteria. Whether they could affect evolutional trajectory of antibiotic resistance or tolerance in bacteria is also not clear yet. Here we investigated four commonly used artificial sweeteners (saccharin, sucralose, aspartame, and acesulfame potassium) against both Gram-negative (Escherichia coli and Klebsiella pneumoniae) and positive (Bacillus subtilis) strains. Results show that all four sweeteners exhibit antimicrobial effects on these strains. The antimicrobial mechanism is due to increased reactive oxygen species (ROS) and cell envelope damage. Compared to sucrose and glucose, the treatment of artificial sweeteners stimulates bacterial efflux pumps and promotes bacterial evolution of antibiotic tolerance. Collectively, our finding provides insights into roles of artificial sweeteners in the emergence of antibiotic tolerance and calls for a re-evaluation of risks due to their intensive usage.
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Affiliation(s)
- Zhigang Yu
- Australian Centre for Water and Environmental Biotechnology (ACWEB, formly AWMC), The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia
| | - Jianhua Guo
- Australian Centre for Water and Environmental Biotechnology (ACWEB, formly AWMC), The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia.
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7
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Mora MR, Dando R. The sensory properties and metabolic impact of natural and synthetic sweeteners. Compr Rev Food Sci Food Saf 2021; 20:1554-1583. [PMID: 33580569 DOI: 10.1111/1541-4337.12703] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 11/12/2020] [Accepted: 12/13/2020] [Indexed: 12/11/2022]
Abstract
The global rise in obesity, type II diabetes, and other metabolic disorders in recent years has been attributed in part to the overconsumption of added sugars. Sugar reduction strategies often rely on synthetic and naturally occurring sweetening compounds to achieve their goals, with popular synthetic sweeteners including saccharin, cyclamate, acesulfame potassium, aspartame, sucralose, neotame, alitame, and advantame. Natural sweeteners can be further partitioned into nutritive, including polyols, rare sugars, honey, maple syrup, and agave, and nonnutritive, which include steviol glycosides and rebaudiosides, luo han guo (monk fruit), and thaumatin. We choose the foods we consume largely on their sensory properties, an area in which these sugar substitutes often fall short. Here, we discuss the most popular synthetic and natural sweeteners, with the goal of providing an understanding of differences in the sensory profiles of these sweeteners versus sucrose, that they are designed to replace, essential for the effectiveness of sugar reduction strategies. In addition, we break down the influence of these sweeteners on metabolism, and present results from a large survey of consumers' opinions on these sweeteners. Consumer interest in clean label foods has driven a move toward natural sweeteners; however, neither natural nor synthetic sweeteners are metabolically inert. Identifying sugar replacements that not only closely imitate the sensory profile of sucrose but also exert advantageous effects on body weight and metabolism is critical in successfully the ultimate goals of reducing added sugar in the average consumer's diet. With so many options for sucrose replacement available, consumer opinion and cost, which vary widely with suagr replacements, will also play a vital role in which sweeteners are successful in widespread adoption.
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Affiliation(s)
- Margaux R Mora
- Department of Food Science, Cornell University, Ithaca, New York
| | - Robin Dando
- Department of Food Science, Cornell University, Ithaca, New York
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8
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Ahmad SY, Friel J, Mackay D. The Effects of Non-Nutritive Artificial Sweeteners, Aspartame and Sucralose, on the Gut Microbiome in Healthy Adults: Secondary Outcomes of a Randomized Double-Blinded Crossover Clinical Trial. Nutrients 2020; 12:nu12113408. [PMID: 33171964 PMCID: PMC7694690 DOI: 10.3390/nu12113408] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 10/27/2020] [Accepted: 10/29/2020] [Indexed: 12/15/2022] Open
Abstract
Non-nutritive artificial sweeteners (NNSs) may have the ability to change the gut microbiota, which could potentially alter glucose metabolism. This study aimed to determine the effect of sucralose and aspartame consumption on gut microbiota composition using realistic doses of NNSs. Seventeen healthy participants between the ages of 18 and 45 years who had a body mass index (BMI) of 20–25 were selected. They undertook two 14-day treatment periods separated by a four-week washout period. The sweeteners consumed by each participant consisted of a standardized dose of 14% (0.425 g) of the acceptable daily intake (ADI) for aspartame and 20% (0.136 g) of the ADI for sucralose. Faecal samples collected before and after treatments were analysed for microbiome and short-chain fatty acids (SCFAs). There were no differences in the median relative proportions of the most abundant bacterial taxa (family and genus) before and after treatments with both NNSs. The microbiota community structure also did not show any obvious differences. There were no differences in faecal SCFAs following the consumption of the NNSs. These findings suggest that daily repeated consumption of pure aspartame or sucralose in doses reflective of typical high consumption have minimal effect on gut microbiota composition or SCFA production.
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Affiliation(s)
- Samar Y. Ahmad
- Richardson Centre for Functional Foods and Nutraceuticals, Department of Human Nutritional Sciences, University of Manitoba, 196 Innovation Drive, Winnipeg, MB R3T 2E1, Canada; (J.F.); (D.M.)
- Correspondence: ; Tel.: +96-599-782-245
| | - James Friel
- Richardson Centre for Functional Foods and Nutraceuticals, Department of Human Nutritional Sciences, University of Manitoba, 196 Innovation Drive, Winnipeg, MB R3T 2E1, Canada; (J.F.); (D.M.)
| | - Dylan Mackay
- Richardson Centre for Functional Foods and Nutraceuticals, Department of Human Nutritional Sciences, University of Manitoba, 196 Innovation Drive, Winnipeg, MB R3T 2E1, Canada; (J.F.); (D.M.)
- Department of Community Health Sciences, Rady Faculty of Health Sciences Winnipeg, University of Manitoba, MB R3T 6C5, Canada
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9
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Consumption of non-nutritive sweeteners during pregnancy. Am J Obstet Gynecol 2020; 223:211-218. [PMID: 32275895 DOI: 10.1016/j.ajog.2020.03.034] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 01/15/2023]
Abstract
In an effort to reduce sugar consumption to prevent diabetes mellitus and cardiovascular diseases, "sugar-free" or "no added sugar" products that substitute sugar with non-nutritive sweeteners (NNSs) (eg, Splenda, Sweet'N Low, and Stevia) have become increasingly popular. The use of these products during pregnancy has also increased, with approximately 30% of pregnant women reporting intentional NNS consumption. In clinical studies with nonpregnant participants and animal models, NNSs were shown to alter gut hormonal secretion, glucose absorption, appetite, kidney function, in vitro insulin secretion, adipogenesis, and microbiome dysbiosis of gut bacteria. In pregnant animal models, NNS consumption has been associated with altered sweet taste preference later in life and metabolic dysregulations in the offspring (eg, elevated body mass index, increased risk of obesity, microbiome dysbiosis, and abnormal liver function tests). Despite the accumulating evidence, no specific guidelines for NNS consumption are available for pregnant women. Furthermore, there are limited clinical studies on the effects of NNS consumption during pregnancy and postpartum and long-term outcomes in the offspring.
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10
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Artificial Sweeteners Disrupt Tight Junctions and Barrier Function in the Intestinal Epithelium through Activation of the Sweet Taste Receptor, T1R3. Nutrients 2020; 12:nu12061862. [PMID: 32580504 PMCID: PMC7353258 DOI: 10.3390/nu12061862] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/18/2020] [Accepted: 06/20/2020] [Indexed: 12/20/2022] Open
Abstract
The breakdown of the intestinal epithelial barrier and subsequent increase in intestinal permeability can lead to systemic inflammatory diseases and multiple-organ failure. Nutrition impacts the intestinal barrier, with dietary components such as gluten increasing permeability. Artificial sweeteners are increasingly consumed by the general public in a range of foods and drinks. The sweet taste receptor (T1R3) is activated by artificial sweeteners and has been identified in the intestine to play a role in incretin release and glucose transport; however, T1R3 has not been previously linked to intestinal permeability. Here, the intestinal epithelial cell line, Caco-2, was used to study the effect of commonly-consumed artificial sweeteners, sucralose, aspartame and saccharin, on permeability. At high concentrations, aspartame and saccharin were found to induce apoptosis and cell death in intestinal epithelial cells, while at low concentrations, sucralose and aspartame increased epithelial barrier permeability and down-regulated claudin 3 at the cell surface. T1R3 knockdown was found to attenuate these effects of artificial sweeteners. Aspartame induced reactive oxygen species (ROS) production to cause permeability and claudin 3 internalization, while sweetener-induced permeability and oxidative stress was rescued by the overexpression of claudin 3. Taken together, our findings demonstrate that the artificial sweeteners sucralose, aspartame, and saccharin exert a range of negative effects on the intestinal epithelium through the sweet taste receptor T1R3.
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11
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Molecular interactions and taste perception of an artificial sweetener saccharin sodium in aqueous and in aqueous solutions of choline chloride at different temperatures. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112855] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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12
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Shi Q, Cai L, Jia H, Zhu X, Chen L, Deng S. Low intake of digestible carbohydrates ameliorates duodenal absorption of carbohydrates in mice with glucose metabolism disorders induced by artificial sweeteners. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:4952-4962. [PMID: 30953347 DOI: 10.1002/jsfa.9727] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 04/03/2019] [Accepted: 04/05/2019] [Indexed: 05/27/2023]
Abstract
BACKGROUND Long-term artificial sweetener consumption has been reported to induce glucose intolerance, and the intestinal microbiota seems as an important target. While the impacts of artificial sweeteners on energy balance remain controversial, this work aimed to evaluate the protective effects in mice of a low digestible carbohydrate (LDC) diet on plasma glucose, plasma fasting insulin, sweet taste receptors, glucose transporters, and absorption of carbohydrates, together with consumption of acesulfame potassium (AK) or saccharin (SAC). RESULTS Artificial sweetener was administered to mice for 12 weeks to induce glucose metabolism disorders; mice were treated with an LDC diet for the final 6 weeks. The experimental groups were treated with an LDC diet that had the same energy as the normal-diet group. Prolonged administration of artificial sweeteners led to metabolic dysfunction, characterized by significantly increased plasma glucose, insulin resistance, sweet taste receptors, glucose transporters, and absorption of carbohydrates. Treatment with an LDC diet positively modulated these altered parameters, suggesting overall beneficial effects of an LDC diet on detrimental changes associated with artificial sweeteners. CONCLUSIONS Reducing digestible carbohydrates in the diet can significantly reduce the absorption of carbohydrates and improve glucose metabolism disorders caused by dietary factors. These effects may be due to the fact that reducing the amount of digestible carbohydrates in the feed can reduce the number of intestinal sweet receptors induced by exposure to artificial sweeteners. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Qing Shi
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Lei Cai
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Hongzhe Jia
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Xuemei Zhu
- School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian, China
| | - Lei Chen
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Shaoping Deng
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
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13
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Acute Effects of Nutritive and Non-Nutritive Sweeteners on Postprandial Blood Pressure. Nutrients 2019; 11:nu11081717. [PMID: 31349678 PMCID: PMC6722982 DOI: 10.3390/nu11081717] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 07/19/2019] [Accepted: 07/20/2019] [Indexed: 02/06/2023] Open
Abstract
Postprandial hypotension (PPH) is under-recognised, but common, particularly in the elderly, and is of clear clinical importance due to both the independent association between PPH and an increase in mortality and lack of effective management for this condition. Following health concerns surrounding excessive consumption of sugar, there has been a trend in the use of low- or non-nutritive sweeteners as an alternative. Due to the lack of literature in this area, we conducted a systematic search to identify studies relevant to the effects of different types of sweeteners on postprandial blood pressure (BP). The BP response to ingestion of sweeteners is generally unaffected in healthy young subjects, however in elderly subjects, glucose induces the greatest decrease in postprandial BP, while the response to sucrose is less pronounced. The limited studies investigating other nutritive and non-nutritive sweeteners have demonstrated minimal or no effect on postprandial BP. Dietary modification by replacing high nutritive sweeteners (glucose, fructose, and sucrose) with low nutritive (d-xylose, xylitol, erythritol, maltose, maltodextrin, and tagatose) and non-nutritive sweeteners may be a simple and effective management strategy for PPH.
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14
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Roberts A, Lobach AR. Response to the Letter to the Editor by S. Schiffman and H. Nagle: Revisiting the data and information that has collectively established the safety of low/no-calorie sweeteners, including sucralose. Food Chem Toxicol 2019; 132:110691. [PMID: 31330167 DOI: 10.1016/j.fct.2019.110691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 07/17/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Ashley Roberts
- Intertek Scientific & Regulatory Consultancy, 2233 Argentia Rd., Suite 201, Mississauga, ON, L5N 2X7, Canada.
| | - Alexandra R Lobach
- Intertek Scientific & Regulatory Consultancy, 2233 Argentia Rd., Suite 201, Mississauga, ON, L5N 2X7, Canada
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15
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Fiume MM, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD, Liebler DC, Marks JG, Shank RC, Slaga TJ, Snyder PW, Gill LJ, Heldreth B. Safety Assessment of Monosaccharides, Disaccharides, and Related Ingredients as Used in Cosmetics. Int J Toxicol 2019; 38:5S-38S. [PMID: 31170840 DOI: 10.1177/1091581818814189] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The Cosmetic Ingredient Review Expert Panel (Panel) assessed the safety of 25 monosaccharides, disaccharides, and related ingredients and concluded these are safe in the present practices of use and concentration described in the safety assessment. Many of these ingredients are common dietary sugars, dietary sugar replacements, or very closely related analogs and salts; 7 of the ingredients are listed by the Food and Drug Administration as generally recognized as safe food substances. The most commonly reported cosmetic function is as a skin-conditioning agent; other commonly reported functions are use as a humectant or as a flavoring agent. The Panel reviewed the animal and clinical data included in this assessment, acknowledged that the oral safety of many of these ingredients has been well established, and found it appropriate to extrapolate the existing information to conclude on the safety of all the monosaccharides, disaccharides, and related ingredients.
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Affiliation(s)
- Monice M Fiume
- 1 Cosmetic Ingredient Review Senior Director, Washington, DC, USA
| | - Wilma F Bergfeld
- 2 Cosmetic Ingredient Review Expert Panel Member, Washington, DC, USA
| | - Donald V Belsito
- 2 Cosmetic Ingredient Review Expert Panel Member, Washington, DC, USA
| | - Ronald A Hill
- 2 Cosmetic Ingredient Review Expert Panel Member, Washington, DC, USA
| | - Curtis D Klaassen
- 2 Cosmetic Ingredient Review Expert Panel Member, Washington, DC, USA
| | - Daniel C Liebler
- 2 Cosmetic Ingredient Review Expert Panel Member, Washington, DC, USA
| | - James G Marks
- 2 Cosmetic Ingredient Review Expert Panel Member, Washington, DC, USA
| | - Ronald C Shank
- 2 Cosmetic Ingredient Review Expert Panel Member, Washington, DC, USA
| | - Thomas J Slaga
- 2 Cosmetic Ingredient Review Expert Panel Member, Washington, DC, USA
| | - Paul W Snyder
- 2 Cosmetic Ingredient Review Expert Panel Member, Washington, DC, USA
| | - Lillian J Gill
- 3 Cosmetic Ingredient Review Former Director, Washington, DC, USA
| | - Bart Heldreth
- 4 Cosmetic Ingredient Review Executive Director, Washington, DC, USA
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16
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Shi Q, Zhu X, Deng S. Sweet Taste Receptor Expression and Its Activation by Sucralose to Regulate Glucose Absorption in Mouse Duodenum. J Food Sci 2019; 86:540-545. [PMID: 31042819 DOI: 10.1111/1750-3841.14586] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 02/13/2019] [Accepted: 03/05/2019] [Indexed: 01/03/2023]
Abstract
Sucralose (SUC) has been used in the food industry for nearly 30 years since it was first allowed as an artificial sweetener at the end of the 20th century. However, its effects on the body remain not incontrovertible. This work aimed to investigate the influence of SUC exposure on sweetness receptors and glucose absorption and to explore the relationship between them. Mice were exposed with different concentration of SUC (from 0.27 to 0.47 g/L) for 12 weeks. Long-term treatment with SUC resulted in impaired glucose metabolism, manifested in the decrease of glucose tolerance and the increase of sweet taste receptors, glucose transporters, and glucose absorption. This study also provides a method to quantify the glucose absorptivity. In detail, with increasing concentration of SUC, the glucose absorptivities in the dodecadactylon of mice were added 1.48, 1.56, 1.71, and 1.71 times, respectively, showing wide interindividual variation compared with the control group. PRACTICAL APPLICATION: The artificial sweetener, sucralose, has physiological influences of changing glucose metabolism. The small bowel is the main location for glucose metabolism and absorbs the ingested proteins and carbohydrates. And, this study provides a method to quantify the glucose absorptivity of intestine.
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Affiliation(s)
- Qing Shi
- the School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Xuemei Zhu
- School of Food Science and Technology, Dalian Polytechnic Univ., Dalian, 116034, China
| | - Shaoping Deng
- the School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, 310018, China
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17
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Onaolapo A, Onaolapo O. Food additives, food and the concept of ‘food addiction’: Is stimulation of the brain reward circuit by food sufficient to trigger addiction? PATHOPHYSIOLOGY 2018; 25:263-276. [DOI: 10.1016/j.pathophys.2018.04.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 02/26/2018] [Accepted: 04/07/2018] [Indexed: 02/08/2023] Open
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Glendinning JI. Oral Post-Oral Actions of Low-Calorie Sweeteners: A Tale of Contradictions and Controversies. Obesity (Silver Spring) 2018; 26 Suppl 3:S9-S17. [PMID: 30290077 DOI: 10.1002/oby.22253] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 05/28/2018] [Indexed: 01/05/2023]
Abstract
OBJECTIVE Many scientists and laypeople alike have concerns about low-calorie sweeteners (LCSs). These concerns stem from both a dissatisfaction with the taste of LCSs and reports that they cause metabolic disruptions (e.g., weight gain, glucose intolerance). METHODS This article provides a critical review of the literature on LCSs from the standpoint of their taste, gastrointestinal, and metabolic effects; biological fate in the body; and impact on ingestion and glucose homeostasis. RESULTS AND CONCLUSIONS Mammals can readily discriminate between LCSs and sugars because both types of sweetener activate distinct oral and post-oral sensory pathways. LCSs differ in their ability to access post-oral tissues, but few studies have incorporated this observation into their design. It is difficult to extrapolate results between mice, rats, and humans because of interspecies differences in the taste and post-oral actions of LCSs and the fact that investigators often use different response measures in rodents and humans. There is confounding in the experimental design of some of the most widely cited studies of LCS-induced metabolic disruptions. The uncritical acceptance of these studies has generated considerable controversy. More work is needed to obtain a clearer understanding of the metabolic effects of LCSs.
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Affiliation(s)
- John I Glendinning
- Department of Biology, Barnard College, Columbia University, New York, New York, USA
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19
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Choo E, Dando R. No detriment in taste response or expression in offspring of mice fed representative levels of sucrose or non-caloric sucralose while pregnant. Physiol Behav 2018; 184:39-45. [DOI: 10.1016/j.physbeh.2017.11.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 10/25/2017] [Accepted: 11/02/2017] [Indexed: 11/17/2022]
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20
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Sprooten RT, Lenaerts K, Braeken DC, Grimbergen I, Rutten EP, Wouters EF, Rohde GG. Increased Small Intestinal Permeability during Severe Acute Exacerbations of COPD. Respiration 2018; 95:334-342. [PMID: 29393240 PMCID: PMC5985742 DOI: 10.1159/000485935] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 11/29/2017] [Accepted: 11/29/2017] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Disturbances of intestinal integrity, manifested by increased gastro-intestinal (GI) permeability, have been found in chronic obstructive pulmonary disease (COPD) patients during physical activity, often associated with intermittent hypoxic periods. Evidence about extrapulmonary organ disturbances, especially of the GI tract, during hospitalised acute exacerbation of COPD (AE-COPD) with hypoxaemic respiratory failure (RF) is lacking. OBJECTIVE The aim was to assess changes in GI permeability in patients with AE-COPD and during recovery 4 weeks later. METHODS All patients admitted to our hospital with AE-COPD accompanied by hypoxaemia at admission (PaO2 <8.7 kPa or O2 saturation <93%) were screened between October 2013 and February 2014. Patients with a history of GI or renal disease, chronic heart failure, or use of non-steroidal anti-inflammatory drugs in the 48 h before the test were excluded. GI permeability was assessed by evaluating urinary excretion ratios of the orally ingested sugars lactulose/L-rhamnose (L/R ratio), sucrose/L-rhamnose (Su/R ratio) and sucralose/erythritol (S/E ratio). RESULTS Seventeen patients with severe to very severe COPD completed the study. L/R ratio (×103) at admission of AE-COPD was significantly higher than in the recovery condition (40.9 [29.4-49.6] vs. 27.3 [19.5-47.7], p = 0.039), indicating increased small intestinal permeability. There were no significant differences in the individual sugar levels in urine nor in the 0- to 5-h urinary S/E and Su/R ratios between the 2 visits. CONCLUSION This is the first study showing increased GI permeability during hospitalised AE-COPD accompanied by hypoxaemic RF. Therefore, GI integrity in COPD patients is an attractive target for future research and for the development of interventions to alleviate the consequences of AE-COPD.
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Affiliation(s)
- Roy T.M. Sprooten
- Department of Respiratory Medicine, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Kaatje Lenaerts
- Department of Surgery, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Dionne C.W. Braeken
- Department of Respiratory Medicine, Maastricht University Medical Center, Maastricht, the Netherlands
- Ciro, Horn, the Netherlands
| | - Ilvy Grimbergen
- Department of Respiratory Medicine, Maastricht University Medical Center, Maastricht, the Netherlands
| | | | - Emiel F.M. Wouters
- Department of Respiratory Medicine, Maastricht University Medical Center, Maastricht, the Netherlands
- Ciro, Horn, the Netherlands
| | - Gernot G.U. Rohde
- Department of Respiratory Medicine, Maastricht University Medical Center, Maastricht, the Netherlands
- Department of Respiratory Medicine, Medical Clinic I, J.W. Goethe University Hospital, Frankfurt/Main, Germany
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21
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Shi Q, Zhu X, Zhou J, Chen L. Low intake of digestible carbohydrates ameliorates the duodenal absorption of carbohydrates in mice with glucose metabolic disorders induced by sucralose. Food Funct 2018; 9:6236-6244. [DOI: 10.1039/c8fo02029a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In the current study, the protective effects of diets with low digestible carbohydrates (LDCs) on plasma glucose, plasma fasting insulin, sweet taste receptors, glucose transporters and absorption of carbohydrates in mice that consume sucralose were evaluated.
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Affiliation(s)
- Qing Shi
- School of Food Science and Biotechnology
- Zhejiang Gongshang University
- Hangzhou 310018
- China
| | - Xuemei Zhu
- School of Food Science and Technology
- National Engineering Research Center of Seafood
- Dalian Polytechnic University
- Dalian
- China
| | - Jue Zhou
- School of Food Science and Biotechnology
- Zhejiang Gongshang University
- Hangzhou 310018
- China
| | - Lianlian Chen
- School of Food Science and Biotechnology
- Zhejiang Gongshang University
- Hangzhou 310018
- China
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22
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Magnuson BA, Carakostas MC, Moore NH, Poulos SP, Renwick AG. Biological fate of low-calorie sweeteners. Nutr Rev 2017; 74:670-689. [PMID: 27753624 DOI: 10.1093/nutrit/nuw032] [Citation(s) in RCA: 152] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
With continued efforts to find solutions to rising rates of obesity and diabetes, there is increased interest in the potential health benefits of the use of low- and no-calorie sweeteners (LNCSs). Concerns about safety often deter the use of LNCSs as a tool in helping control caloric intake, even though the safety of LNCS use has been affirmed by regulatory agencies worldwide. In many cases, an understanding of the biological fate of the different LNSCs can help health professionals to address safety concerns. The objectives of this review are to compare the similarities and differences in the chemistry, regulatory status, and biological fate (including absorption, distribution, metabolism, and excretion) of the commonly used LNCSs: acesulfame potassium, aspartame, saccharin, stevia leaf extract (steviol glycoside), and sucralose. Understanding the biological fate of the different LNCSs is helpful in evaluating whether reports of biological effects in animal studies or in humans are indicative of possible safety concerns. Illustrations of the usefulness of this information to address questions about LNCSs include discussion of systemic exposure to LNCSs, the use of sweetener combinations, and the potential for effects of LNCSs on the gut microflora.
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Affiliation(s)
- Bernadene A Magnuson
- B.A. Magnuson is with Health Science Consultants, Inc, Mississauga, Ontario, Canada. M.C. Carakostas is with MC Scientific Consulting, LLC, Dataw Island, South Carolina, USA. N.H. Moore is with Veritox, Inc, Redmond, Washington, USA. S.P. Poulos is with the Calorie Control Council, Atlanta, Georgia, USA. A.G. Renwick is with the Faculty of Medicine, University of Southampton, Southampton, United Kingdom.
| | - Michael C Carakostas
- B.A. Magnuson is with Health Science Consultants, Inc, Mississauga, Ontario, Canada. M.C. Carakostas is with MC Scientific Consulting, LLC, Dataw Island, South Carolina, USA. N.H. Moore is with Veritox, Inc, Redmond, Washington, USA. S.P. Poulos is with the Calorie Control Council, Atlanta, Georgia, USA. A.G. Renwick is with the Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Nadia H Moore
- B.A. Magnuson is with Health Science Consultants, Inc, Mississauga, Ontario, Canada. M.C. Carakostas is with MC Scientific Consulting, LLC, Dataw Island, South Carolina, USA. N.H. Moore is with Veritox, Inc, Redmond, Washington, USA. S.P. Poulos is with the Calorie Control Council, Atlanta, Georgia, USA. A.G. Renwick is with the Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Sylvia P Poulos
- B.A. Magnuson is with Health Science Consultants, Inc, Mississauga, Ontario, Canada. M.C. Carakostas is with MC Scientific Consulting, LLC, Dataw Island, South Carolina, USA. N.H. Moore is with Veritox, Inc, Redmond, Washington, USA. S.P. Poulos is with the Calorie Control Council, Atlanta, Georgia, USA. A.G. Renwick is with the Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Andrew G Renwick
- B.A. Magnuson is with Health Science Consultants, Inc, Mississauga, Ontario, Canada. M.C. Carakostas is with MC Scientific Consulting, LLC, Dataw Island, South Carolina, USA. N.H. Moore is with Veritox, Inc, Redmond, Washington, USA. S.P. Poulos is with the Calorie Control Council, Atlanta, Georgia, USA. A.G. Renwick is with the Faculty of Medicine, University of Southampton, Southampton, United Kingdom
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23
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Critical review of the current literature on the safety of sucralose. Food Chem Toxicol 2017; 106:324-355. [DOI: 10.1016/j.fct.2017.05.047] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 05/06/2017] [Accepted: 05/22/2017] [Indexed: 01/24/2023]
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24
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Uebanso T, Ohnishi A, Kitayama R, Yoshimoto A, Nakahashi M, Shimohata T, Mawatari K, Takahashi A. Effects of Low-Dose Non-Caloric Sweetener Consumption on Gut Microbiota in Mice. Nutrients 2017; 9:nu9060560. [PMID: 28587159 PMCID: PMC5490539 DOI: 10.3390/nu9060560] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 05/12/2017] [Accepted: 05/29/2017] [Indexed: 01/02/2023] Open
Abstract
Abstract: Non-caloric artificial sweeteners (NASs) provide sweet tastes to food without adding calories or glucose. NASs can be used as alternative sweeteners for controlling blood glucose levels and weight gain. Although the consumption of NASs has increased over the past decade in Japan and other countries, whether these sweeteners affect the composition of the gut microbiome is unclear. In the present study, we examined the effects of sucralose or acesulfame-K ingestion (at most the maximum acceptable daily intake (ADI) levels, 15 mg/kg body weight) on the gut microbiome in mice. Consumption of sucralose, but not acesulfame-K, for 8 weeks reduced the relative amount of Clostridiumcluster XIVa in feces. Meanwhile, sucralose and acesulfame-K did not increase food intake, body weight gain or liver weight, or fat in the epididymis or cecum. Only sucralose intake increased the concentration of hepatic cholesterol and cholic acid. Moreover, the relative concentration of butyrate and the ratio of secondary/primary bile acids in luminal metabolites increased with sucralose consumption in a dose-dependent manner. These results suggest that daily intake of maximum ADI levels of sucralose, but not acesulfame-K, affected the relative amount of the Clostridium cluster XIVa in fecal microbiome and cholesterol bile acid metabolism in mice.
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Affiliation(s)
- Takashi Uebanso
- Department of Preventive Environment and Nutrition, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Kuramoto, Tokushima 770-8503, Japan.
| | - Ai Ohnishi
- Department of Preventive Environment and Nutrition, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Kuramoto, Tokushima 770-8503, Japan.
| | - Reiko Kitayama
- Department of Preventive Environment and Nutrition, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Kuramoto, Tokushima 770-8503, Japan.
| | - Ayumi Yoshimoto
- Department of Preventive Environment and Nutrition, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Kuramoto, Tokushima 770-8503, Japan.
| | - Mutsumi Nakahashi
- Graduate School of Bioscience and Bioindustry, Tokushima University, Tokushima 770-8503, Japan.
| | - Takaaki Shimohata
- Department of Preventive Environment and Nutrition, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Kuramoto, Tokushima 770-8503, Japan.
| | - Kazuaki Mawatari
- Department of Preventive Environment and Nutrition, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Kuramoto, Tokushima 770-8503, Japan.
| | - Akira Takahashi
- Department of Preventive Environment and Nutrition, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Kuramoto, Tokushima 770-8503, Japan.
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Bagga P, Haris M, D'Aquilla K, Wilson NE, Marincola FM, Schnall MD, Hariharan H, Reddy R. Non-caloric sweetener provides magnetic resonance imaging contrast for cancer detection. J Transl Med 2017; 15:119. [PMID: 28558795 PMCID: PMC5450413 DOI: 10.1186/s12967-017-1221-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Accepted: 05/19/2017] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Image contrast enhanced by exogenous contrast agents plays a crucial role in the early detection, characterization, and determination of the precise location of cancers. Here, we investigate the feasibility of using a non-nutritive sweetener, sucralose (commercial name, Splenda), as magnetic resonance imaging (MRI) contrast agent for cancer studies. METHODS High-resolution nuclear-magnetic-resonance spectroscopy and MR studies on sucralose solution phantom were performed to detect the chemical exchange saturation transfer (CEST) property of sucralose hydroxyl protons with bulk water (sucCEST). For the animal experiments, female Fisher rats (F344/NCR) were used to generate 9L-gliosarcoma model. MRI with CEST experiments were performed on anesthetized rats at 9.4 T MR scanner. Following the baseline CEST scans, sucralose solution was intravenously administered in control and tumor bearing rats. CEST acquisitions were continued during and following the administration of sucralose. Following the sucCEST, Gadolinium-diethylenetriamine pentaacetic acid was injected to perform Gd-enhanced imaging for visualizing the tumor. RESULTS The sucCEST contrast in vitro was found to correlate positively with the sucralose concentration and negatively with the pH, indicating the potential of this technique in cancer imaging. In a control animal, the CEST contrast from the brain was found to be unaffected following the administration of sucralose, demonstrating its blood-brain barrier impermeability. In a 9L glioma model, enhanced localized sucCEST contrast in the tumor region was detected while the unaffected brain region showed unaltered CEST effect implying the specificity of sucralose toward the tumorous tissue. The CEST asymmetry plots acquired from the tumor region before and after the sucralose infusion showed elevation of asymmetry at 1 ppm, pointing towards the role of sucralose in increased contrast. CONCLUSIONS We show the feasibility of using sucralose and sucCEST in study of preclinical models of cancer. This study paves the way for the potential development of sucralose and other sucrose derivatives as contrast agents for clinical MRI applications.
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Affiliation(s)
- Puneet Bagga
- Department of Radiology, Center for Magnetic Resonance and Optical Imaging, Perelman School of Medicine, University of Pennsylvania, 422 Curie Blvd, B1-Stellar-Chance Laboratories, Philadelphia, PA, USA
| | - Mohammad Haris
- Research Branch, Sidra Medical and Research Center, Doha, Qatar
| | - Kevin D'Aquilla
- Department of Radiology, Center for Magnetic Resonance and Optical Imaging, Perelman School of Medicine, University of Pennsylvania, 422 Curie Blvd, B1-Stellar-Chance Laboratories, Philadelphia, PA, USA
| | - Neil E Wilson
- Department of Radiology, Center for Magnetic Resonance and Optical Imaging, Perelman School of Medicine, University of Pennsylvania, 422 Curie Blvd, B1-Stellar-Chance Laboratories, Philadelphia, PA, USA
| | | | - Mitchell D Schnall
- Department of Radiology, Center for Magnetic Resonance and Optical Imaging, Perelman School of Medicine, University of Pennsylvania, 422 Curie Blvd, B1-Stellar-Chance Laboratories, Philadelphia, PA, USA
| | - Hari Hariharan
- Department of Radiology, Center for Magnetic Resonance and Optical Imaging, Perelman School of Medicine, University of Pennsylvania, 422 Curie Blvd, B1-Stellar-Chance Laboratories, Philadelphia, PA, USA
| | - Ravinder Reddy
- Department of Radiology, Center for Magnetic Resonance and Optical Imaging, Perelman School of Medicine, University of Pennsylvania, 422 Curie Blvd, B1-Stellar-Chance Laboratories, Philadelphia, PA, USA.
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Berry C, Brusick D, Cohen SM, Hardisty JF, Grotz VL, Williams GM. Sucralose Non-Carcinogenicity: A Review of the Scientific and Regulatory Rationale. Nutr Cancer 2016; 68:1247-1261. [PMID: 27652616 PMCID: PMC5152540 DOI: 10.1080/01635581.2016.1224366] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 06/20/2016] [Indexed: 12/20/2022]
Abstract
Regulatory authorities worldwide have found the nonnutritive sweetener, sucralose, to be noncarcinogenic, based on a range of studies. A review of these and other studies found through a comprehensive search of electronic databases, using appropriate key terms, was conducted and results of that review are reported here. An overview of the types of studies relied upon by regulatory agencies to assess carcinogenicity potential is also provided as context. Physiochemical and pharmacokinetic/toxicokinetic studies confirm stability under conditions of use and reveal no metabolites of carcinogenic potential. In vitro and in vivo assays reveal no confirmed genotoxic activity. Long-term carcinogenicity studies in animal models provide no evidence of carcinogenic potential for sucralose. In studies in healthy adults, sucralose was well-tolerated and without evidence of toxicity or other changes that might suggest a potential for carcinogenic effects. In summary, sucralose does not demonstrate carcinogenic activity even when exposure levels are several orders of magnitude greater than the range of anticipated daily ingestion levels.
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Affiliation(s)
- Colin Berry
- Emeritus Professor of Pathology, Queen Mary University of London, London, UK
| | | | - Samuel M. Cohen
- Department of Pathology and Microbiology, Havlik-Wall Professor of Oncology, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Jerry F. Hardisty
- Experimental Pathology Laboratories, Inc., Durham, North Carolina, USA
| | - V. Lee Grotz
- Director and R&D Fellow, Medical Affairs, Johnson & Johnson Consumer Inc., Fort Washington, PA, USA
| | - Gary M. Williams
- Department of Pathology, New York Medical College, Valhalla, New York, USA
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Suez J, Korem T, Zilberman-Schapira G, Segal E, Elinav E. Non-caloric artificial sweeteners and the microbiome: findings and challenges. Gut Microbes 2015; 6:149-55. [PMID: 25831243 PMCID: PMC4615743 DOI: 10.1080/19490976.2015.1017700] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Non-caloric artificial sweeteners (NAS) are common food supplements consumed by millions worldwide as means of combating weight gain and diabetes, by retaining sweet taste without increasing caloric intake. While they are considered safe, there is increasing controversy regarding their potential ability to promote metabolic derangements in some humans. We recently demonstrated that NAS consumption could induce glucose intolerance in mice and distinct human subsets, by functionally altering the gut microbiome. In this commentary, we discuss these findings in the context of previous and recent works demonstrating the effects of NAS on host health and the microbiome, and the challenges and open questions that need to be addressed in understanding the effects of NAS consumption on human health.
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Affiliation(s)
- Jotham Suez
- Department of Immunology; Weizmann Institute of Science; Rehovot, Israel
| | - Tal Korem
- Department of Computer Science and Applied Mathematics; Weizmann Institute of Science, Rehovot, Israel
| | | | - Eran Segal
- Department of Computer Science and Applied Mathematics; Weizmann Institute of Science, Rehovot, Israel,Correspondence to: Eran Segal; ; Eran Elinav;
| | - Eran Elinav
- Department of Immunology; Weizmann Institute of Science; Rehovot, Israel,Correspondence to: Eran Segal; ; Eran Elinav;
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28
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Shaikh M, Rajan K, Forsyth CB, Voigt RM, Keshavarzian A. Simultaneous gas-chromatographic urinary measurement of sugar probes to assess intestinal permeability: use of time course analysis to optimize its use to assess regional gut permeability. Clin Chim Acta 2015; 442:24-32. [PMID: 25591964 DOI: 10.1016/j.cca.2014.12.040] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Revised: 12/26/2014] [Accepted: 12/29/2014] [Indexed: 12/12/2022]
Abstract
BACKGROUND Measurement of intestinal permeability is important in several diseases but currently several methods are employed. We sought to: (1) develop a new GC based method to measure urinary mannitol, lactulose and sucralose to assess regional and total gut permeability; (2) analyze the kinetics of these sugars in the urine to determine which ratio is useful to represent intestinal permeability; and (3) determine whether age, gender, race and BMI impact these values. METHODS Subjects drank a cocktail of sucrose, lactulose, mannitol and sucralose and these sugars were measured in the urine at 5, 12 and 24h with gas chromatography. RESULTS Urinary mannitol exhibited significantly different kinetics than lactulose and sucralose which were similar to each other and varied little over the 24h. No permeability differences were observed for renal function, age, race, sex, or BMI. CONCLUSIONS Our data do not support the use of the widely used L/M ratio as an accurate estimate of intestinal permeability. Our data support the use of: the sucralose/lactulose (S/M) ratio to measure: small intestine permeability (first 5h); small and large intestine (first 12h), and total gut permeability (24h). This was also found to be true in a Parkinson's disease model.
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Affiliation(s)
- Maliha Shaikh
- Department of Internal Medicine, Section of Gastroenterology, Rush University Medical Center, Chicago, IL, United States.
| | - Kumar Rajan
- Rush Institute for Healthy Aging, Chicago, IL, United States.
| | - Christopher B Forsyth
- Department of Internal Medicine, Section of Gastroenterology, Rush University Medical Center, Chicago, IL, United States; Department of Biochemistry, Rush University, Chicago, IL, United States.
| | - Robin M Voigt
- Department of Internal Medicine, Section of Gastroenterology, Rush University Medical Center, Chicago, IL, United States.
| | - Ali Keshavarzian
- Department of Internal Medicine, Section of Gastroenterology, Rush University Medical Center, Chicago, IL, United States; Department of Pharmacology, Rush University, Chicago, IL, United States; Department of Molecular Biophysics and Physiology, Rush University, Chicago, IL, United States; F.C. Donders Chair, Faculty of Science, University of Utrecht, Utrecht, The Netherlands.
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Tran NH, Nguyen VT, Urase T, Ngo HH. Role of nitrification in the biodegradation of selected artificial sweetening agents in biological wastewater treatment process. BIORESOURCE TECHNOLOGY 2014; 161:40-6. [PMID: 24681682 DOI: 10.1016/j.biortech.2014.02.116] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Revised: 02/22/2014] [Accepted: 02/24/2014] [Indexed: 05/21/2023]
Abstract
The biodegradation of the six artificial sweetening agents including acesulfame (ACE), aspartame (ASP), cyclamate (CYC), neohesperidindihydrochalcone (NHDC), saccharin (SAC), and sucralose (SUC) by nitrifying activated sludge was first examined. Experimental results showed that ASP and NHDC were the most easily degradable compounds even in the control tests. CYC and SAC were efficiently biodegraded by the nitrifying activated sludge, whereas ACE and SUC were poorly removed. However, the biodegradation efficiencies of the ASs were increased with the increase in initial ammonium concentrations in the bioreactors. The association between nitrification and co-metabolic degradation was investigated and a linear relationship between nitrification rate and co-metabolic biodegradation rate was observed for the target artificial sweeteners (ASs). The contribution of heterotrophic microorganisms and autotrophic ammonia oxidizers in biodegradation of the ASs was elucidated, of which autotrophic ammonia oxidizers played an important role in the biodegradation of the ASs, particularly with regards to ACE and SUC.
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Affiliation(s)
- N H Tran
- Department of Civil and Environmental Engineering, Faculty of Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore 117576, Singapore.
| | - V T Nguyen
- Department of Civil and Environmental Engineering, Faculty of Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore 117576, Singapore
| | - T Urase
- School of Bioscience and Biotechnology, Tokyo University of Technology, Katakura 1404-1, Hachioji, Tokyo 192-0982, Japan
| | - H H Ngo
- School of Civil and Environmental Engineering, University of Technology Sydney, PO Box 123, Broadway, NSW 2007, Australia
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Schiffman SS, Rother KI. Sucralose, a synthetic organochlorine sweetener: overview of biological issues. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2013; 16:399-451. [PMID: 24219506 PMCID: PMC3856475 DOI: 10.1080/10937404.2013.842523] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Sucralose is a synthetic organochlorine sweetener (OC) that is a common ingredient in the world's food supply. Sucralose interacts with chemosensors in the alimentary tract that play a role in sweet taste sensation and hormone secretion. In rats, sucralose ingestion was shown to increase the expression of the efflux transporter P-glycoprotein (P-gp) and two cytochrome P-450 (CYP) isozymes in the intestine. P-gp and CYP are key components of the presystemic detoxification system involved in first-pass drug metabolism. The effect of sucralose on first-pass drug metabolism in humans, however, has not yet been determined. In rats, sucralose alters the microbial composition in the gastrointestinal tract (GIT), with relatively greater reduction in beneficial bacteria. Although early studies asserted that sucralose passes through the GIT unchanged, subsequent analysis suggested that some of the ingested sweetener is metabolized in the GIT, as indicated by multiple peaks found in thin-layer radiochromatographic profiles of methanolic fecal extracts after oral sucralose administration. The identity and safety profile of these putative sucralose metabolites are not known at this time. Sucralose and one of its hydrolysis products were found to be mutagenic at elevated concentrations in several testing methods. Cooking with sucralose at high temperatures was reported to generate chloropropanols, a potentially toxic class of compounds. Both human and rodent studies demonstrated that sucralose may alter glucose, insulin, and glucagon-like peptide 1 (GLP-1) levels. Taken together, these findings indicate that sucralose is not a biologically inert compound.
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Affiliation(s)
- Susan S. Schiffman
- Department of Electrical and Computer Engineering, College of Engineering, North Carolina State University, Raleigh, North Carolina, USA
- Address correspondence to Susan S. Schiffman, PhD, Department of Electrical and Computer Engineering, College of Engineering, North Carolina State University, Raleigh, NC 27695-7911, USA. E-mail:
| | - Kristina I. Rother
- Section on Pediatric Diabetes & Metabolism, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), National Institutes of Health, Bethesda, Maryland, USA
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31
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Saada HN, Mekky NH, Eldawy HA, Abdelaal AF. Biological Effect of Sucralose in Diabetic Rats. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/fns.2013.47a010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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32
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AlDeeb OAA, Mahgoub H, Foda NH. Sucralose. PROFILES OF DRUG SUBSTANCES, EXCIPIENTS, AND RELATED METHODOLOGY 2013; 38:423-462. [PMID: 23668410 DOI: 10.1016/b978-0-12-407691-4.00010-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Sucralose is a nonnutritive, zero-calorie artificial sweetener. It is a chlorinated sugar substitute that is about 600 times as sweet as sucrose. It is produced from sucrose when three chlorine atoms replace three hydroxyl groups. It is consumed as tablets (Blendy) by diabetic and obese patients. It is also used as an excipient in drug manufacturing. Unlike other artificial sweeteners, it is stable when heated and can, therefore, be used in baked and fried foods. The FDA approved sucralose in 1998. This review presents a comprehensive profile for sucralose including physical, analytical, and ADME profiles and methods of its synthesis. Spectral data for X-ray powder diffraction and DSC of sucralose are recorded and presented. The authors also recorded FT-IR, (1)H- and (13)C NMR, and ESI-MS spectra. Interpretation with detailed spectral assignments is provided. The analytical profile of sucralose covered the compendial methods, spectroscopic, and different chromatographic analytical techniques. The ADME profile covered all absorption, distribution, metabolism, and elimination data in addition to pharmacokinetics and pharmacological effects of sucralose. Some nutritional aspects for sucralose in obesity and diabetes are also presented. Both chemical and microbiological synthesis schemes for sucralose are reviewed and included.
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Affiliation(s)
- Omar A A AlDeeb
- Department of Pharmaceutical Chemistry, Hail University, Hail, Saudi Arabia
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Rocha GDS, Pereira MDO, Benarroz MDO, Frydman JNG, Rocha VCD, Santos MJPD, Fonseca ADSD, Bernardo-Filho M. Sucralose sweetener does not modify radiolabeling of blood constituents and morphology of red blood cells. Med Chem Res 2011. [DOI: 10.1007/s00044-011-9625-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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34
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Neonatal exposure to sucralose does not alter biochemical markers of neuronal development or adult behavior. Nutrition 2011; 27:81-85. [DOI: 10.1016/j.nut.2009.10.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2009] [Revised: 10/13/2009] [Accepted: 10/21/2009] [Indexed: 11/22/2022]
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35
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Thermal degradation of sucralose and its potential in generating chloropropanols in the presence of glycerol. Food Chem 2010. [DOI: 10.1016/j.foodchem.2009.04.133] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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36
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Brusick D, Borzelleca JF, Gallo M, Williams G, Kille J, Wallace Hayes A, Xavier Pi-Sunyer F, Williams C, Burks W. Expert Panel report on a study of Splenda in male rats. Regul Toxicol Pharmacol 2009; 55:6-12. [DOI: 10.1016/j.yrtph.2009.06.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2009] [Revised: 06/22/2009] [Accepted: 06/23/2009] [Indexed: 10/20/2022]
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37
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An overview of the safety of sucralose. Regul Toxicol Pharmacol 2009; 55:1-5. [DOI: 10.1016/j.yrtph.2009.05.011] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2009] [Revised: 05/07/2009] [Accepted: 05/11/2009] [Indexed: 11/19/2022]
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38
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Farhadi A, Keshavarzian A, Holmes EW, Fields J, Zhang L, Banan A. Gas chromatographic method for detection of urinary sucralose: application to the assessment of intestinal permeability. J Chromatogr B Analyt Technol Biomed Life Sci 2003; 784:145-54. [PMID: 12504193 DOI: 10.1016/s1570-0232(02)00787-0] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
We developed a capillary column gas chromatography (CCGC) method for the measurement of urinary sucralose (S) and three other sugar probes including, sucrose, lactulose (L) and mannitol (M) for use in in vivo studies of intestinal permeability. We compared the capillary method with a packed column gas chromatography (PCGC) method. We also investigated a possible role for sucralose as a probe for the measurement of whole gut permeability. Sample preparation was rapid and simple. The above four sugars were detected precisely, without interference. We measured intestinal permeability using 5- and 24-h urine collections in 14 healthy volunteers. The metabolism of sugars was evaluated by incubating the intestinal bacteria with an iso-osmolar mixture of mannitol, lactulose and sucralose at 37 degrees C for 19 h. Sugar concentrations and the pH of the mixture were monitored. The use of the CCGC method improved the detection of sucralose as compared to PCGC. The average coefficient of variation decreased from 15% to 4%. It also increased the sensitivity of detection by 200-2000-fold. The GC assay was linear between sucralose concentrations of 0.2 and 40 g/l (r=1.000). Intestinal bacteria metabolized lactulose and acidified the media but did not metabolize sucralose or mannitol. The new method for the measurement of urinary sucralose permits the simultaneous quantitation of sucrose, mannitol and lactulose, and is rapid, simple, sensitive, accurate and reproducible. Because neither S nor M is metabolized by intestinal bacteria, and because only a tiny fraction of either sugar is absorbed, this pair of sugar probes appears to be available for absorption throughout the GI tract. Thus, the 24-h urinary concentrations of S and M, or the urinary S/M ratio following an oral dose of a sugar mixture, might be good markers for whole gut permeability.
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Affiliation(s)
- Ashkan Farhadi
- Department of Internal Medicine, Division of Digestive Diseases, Rush University Medical Center, 60612, Chicago, IL, USA.
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39
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Roberts A, Renwick AG, Sims J, Snodin DJ. Sucralose metabolism and pharmacokinetics in man. Food Chem Toxicol 2000; 38 Suppl 2:S31-41. [PMID: 10882816 DOI: 10.1016/s0278-6915(00)00026-0] [Citation(s) in RCA: 147] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The metabolic and pharmacokinetic profile of sucralose was studied in human volunteers. Following a single oral dose of (14)C-sucralose (1mg/kg, 100 microCi) to eight male subjects, a mean of 14.5% (range 8.9 to 21.8%) of the radioactivity was excreted in urine and 78.3% (range 69.4 to 89.6%) in the faeces, within 5 days. The total recovery of radioactivity averaged 92.8%. Plasma concentrations of radioactivity were maximal at about 2 hours after dosing. The mean residence time (MRT) for sucralose was 18.8hr, while the effective half-life for the decline of plasma radioactivity was 13hr. Two volunteers given a higher oral dose (10mg/kg, 22.7 microCi) excreted a mean of 11.2% (9.6 and 12.7%) of the radioactivity in urine, and 85.5% (84.1 and 86.8%) in faeces over 5 days. The total recovery of radioactivity was 96.7%. The radiolabelled material present in faeces was essentially unchanged sucralose. Sucralose was the principal component in the urine together with two more polar components which accounted for only 2.6% of the administered dose (range 1.5 to 5.1% of dose); both metabolites possessed characteristics of glucuronide conjugates of sucralose.
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Affiliation(s)
- A Roberts
- University of Southampton, Bassett Crescent East, Southampton SO9 3TU, UK
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40
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John BA, Wood SG, Hawkins DR. The pharmacokinetics and metabolism of sucralose in the rabbit. Food Chem Toxicol 2000; 38 Suppl 2:S111-3. [PMID: 10882823 DOI: 10.1016/s0278-6915(00)00033-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The excretion and metabolism of (14)C-sucralose has been investigated in non-pregnant and pregnant rabbits after administration of single 10mg/kg oral doses. Means of 22% and 55% of the dose were excreted in urine and faeces, respectively, by non-pregnant animals during 5 days. Excretion was similar in pregnant animals with means of 22% and 65% of the dose in urine and faeces, respectively, during the same time. Following a single oral dose, a mean of approximately 7% of the dose was still being excreted during the 96-120-hr collection period. Only one major radioactive component was detected in urine samples which corresponded to unchanged sucralose.
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Affiliation(s)
- B A John
- Huntingdon Research Centre Ltd, Huntingdon, Cambs PE18 6ES, UK
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41
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Finn JP, Lord GH. Neurotoxicity studies on sucralose and its hydrolysis products with special reference to histopathologic and ultrastructural changes. Food Chem Toxicol 2000; 38 Suppl 2:S7-17. [PMID: 10882814 DOI: 10.1016/s0278-6915(00)00024-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Comparative neuropathological studies of 1,6-dichloro-1, 6-dideoxy-beta-D-fructofuranosyl-4-chloro-4-deoxy-alpha-D-galactopyra noside (sucralose), an equimolar mixture of 1,6-dichloro-1, 6-dideoxyfructose (1,6-DCF) and 4-chloro-4-deoxygalactose (4-CG), the hydrolysis products of sucralose, and 6-chloro-6-deoxyglucose (6-CG) were conducted in male and female mice and male marmoset monkeys, focusing on morphological changes in the central nervous system. 6-Chloro-6-deoxyglucose, previously reported to produce neurotoxic effects, served as the positive control and was administered by gavage at a daily dose of 500mg/kg. Sucralose and the sucralose hydrolysis products (sucralose-HP) were similarly administered to mice and marmosets at doses of up to 1000mg/kg for 21 and 28 days, respectively. No changes were detected in the central nervous system by light or electron microscopy in either of the species that received sucralose or its hydrolysis products. 6-Chloro-6-deoxyglucose, in contrast, induced symmetrical lesions in the deep nuclei of the cerebellum, brain stem and spinal cord with definitive neurological signs of CNS involvement.
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Affiliation(s)
- J P Finn
- Life Science Research, Eye, Suffolk IP23 7PX, UK
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