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Ahmad M, Seddon YM, Blanch M, Penner GB, Moya D. Effects of flavoring additives on feed intake, growth performance, temperament, and markers of immune function for newly received feedlot cattle. J Anim Sci 2024; 102:skae139. [PMID: 38757251 DOI: 10.1093/jas/skae139] [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: 02/02/2024] [Accepted: 05/15/2024] [Indexed: 05/18/2024] Open
Abstract
Ninety Angus × Hereford steers (259.9 ± 36.18 kg body weight [BW]) were used in a 56-d experiment to assess the effects of flavoring additives on feed intake, and stress and immune response of newly received feedlot cattle. Steers were homogenously distributed by BW into six pens equipped with an individual feed intake monitoring system, and pen was randomly assigned to one of three treatments (15 heads per pen; 30 heads per treatment): a standard feedlot receiving diet (CT), or the same diet with a flavoring additive comprised of either sweeteners (Luctarom Feedlot, SW) or a mix of basic tastes (Luctarom Feedlot Mix, MX) at 1 kg/mT. Pens were equipped with a feed intake monitoring system, while BW, chute behavior, flight speed, blood and saliva samples were collected bi-weekly, and hair samples were collected at 4-wk intervals during the study. Data were analyzed using a mixed-effects model for a pen study using individual animal records with repeated measures. There was a treatment × week interaction (P < 0.01) where meal duration was greater in SW steers than MX and CT on week 3, and then CT on weeks 7 and 8. A trend for treatment × week interaction (P = 0.06) showed that the number of visits per day tended to be greater in SW than MX steers on weeks 4 and 5, and it tended to be greater in SW than MX and CT on week 5. The concentration of IL-6 was greater (P < 0.01) on days 1 and 28 than on day 14. The IgM concentration was greater (P < 0.01) on day 1 compared to days 14, 28, and 56. The concentration of haptoglobin was greater (P < 0.01) on 14 than days 28, 42, and 56, and it was greater (P < 0.01) on day 1 than days 42 and 56. The concentration of serum amyloid A was greater (P < 0.01) on day 1 compared to the rest of sampling days. Fibrinogen concentration was greater (P < 0.01) on day 1 compared to days 14 and 42. The neutrophil-to-lymphocyte ratio was greater (P < 0.01) on days 42 and 56 compared to days 1 and 28, and greater (P < 0.01) on day 14 compared to day 28. Hair and saliva cortisol concentrations were lower (P < 0.01) on day 56 compared to days 1 and 28, respectively. The use of flavoring additives, particularly when based on sweeteners (SW), caused some changes in the feeding pattern of newly received steers. These changes, however, were not consistent over the 56-d feeding period and were not accompanied by a change in growth performance, temperament, biomarkers of stress, inflammation, or immune function.
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Affiliation(s)
- Mustaq Ahmad
- Large Animal Clinical Sciences Department, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, S7N 5B4, Canada
| | - Yolande M Seddon
- Large Animal Clinical Sciences Department, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, S7N 5B4, Canada
| | - Marta Blanch
- Innovation Division, Lucta S.A., Bellaterra, 08193, Spain
| | - Gregory B Penner
- Department of Animal and Poultry Science, University of Saskatchewan, Saskatoon, SK, S7N 5A8, Canada
| | - Diego Moya
- Large Animal Clinical Sciences Department, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, S7N 5B4, Canada
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2
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Mwangi F, Dallasheh A, Kalyesubula M, Reicher N, Sabastian C, Mabjeesh SJ. Diet Preference, Feed Efficiency and Expression of the Sodium-Dependent Glucose Transporter Isoform 1 and Sweet Taste Receptors in the Jejunum of Lambs Supplemented with Different Flavours. Animals (Basel) 2023; 13:ani13081417. [PMID: 37106980 PMCID: PMC10135306 DOI: 10.3390/ani13081417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/08/2023] [Accepted: 04/19/2023] [Indexed: 04/29/2023] Open
Abstract
This study investigated the effect of dietary flavour supplements on the preference, feed efficiency and expression of the sweet taste receptor family 1 members 2 and 3 (T1R2 + T1R3), and sodium-glucose linked transporter 1 (SGLT1) genes in the lambs' small intestines. Eight, five-month-old, Israeli crossbred Assaf lambs were offered 16 different non-nutritive commercial flavours in rolled barley and ground corn. Capsicum and sucram were the most preferred non-aroma flavours (p = 0.020), while milky (p < 0.001) was the most preferred powder-aroma flavour. For the metabolic and relative gene expression study, eight lambs were randomly assigned to either sucram, capsicum, a mix containing sucram and capsicum at 1:1 ratio or no flavour for control in a 4 × 2 cross-over design. The total collection of urine (females only), faeces and refusals was carried out, and T1R2, T1R3 and SGLT1 relative gene expression evaluated from the proximal jejunum biopsies. Flavour had no significant effect on the feed intake (p = 0.934), but capsicum increased the average daily weight gain per metabolic body weight (p = 0.049). The T1R3 gene was expressed highest in the mix treatment (1.7; p = 0.005). Collectively, our findings indicate that flavours can be used to motivate feed acceptance and improve the weight gain in lambs.
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Affiliation(s)
- Felista Mwangi
- Department of Animal Science, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 760001, Israel
- Animal Genetics and Nutrition, Veterinary Sciences Discipline, College of Public Health, Medical and Veterinary Sciences, Division of Tropical Health and Medicine, James Cook University, Townsville, QLD 4811, Australia
| | - Areen Dallasheh
- Department of Animal Science, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 760001, Israel
| | - Mugagga Kalyesubula
- Department of Animal Science, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 760001, Israel
| | - Naama Reicher
- Department of Animal Science, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 760001, Israel
| | - Chris Sabastian
- Department of Animal Science, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 760001, Israel
| | - Sameer J Mabjeesh
- Department of Animal Science, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 760001, Israel
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3
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Koester LR, Hayman K, Anderson CJ, Tibbs-Cortes BW, Daniels KM, Seggerman FM, Gorden PJ, Lyte M, Schmitz-Esser S. Influence of a sodium-saccharin sweetener on the rumen content and rumen epithelium microbiota in dairy cattle during heat stress. J Anim Sci 2022; 101:6894547. [PMID: 36511453 PMCID: PMC9838801 DOI: 10.1093/jas/skac403] [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: 09/28/2022] [Accepted: 12/06/2022] [Indexed: 12/15/2022] Open
Abstract
The effect of a saccharin-based artificial sweetener was tested on animal performance measures and on the microbial communities associated with the rumen content and with the rumen epithelium during heat stress. Ten cannulated Holstein-Friesian milking dairy cattle were supplemented with 2 g of saccharin-based sweetener per day, top-dressed into individual feeders for a 7-day adaptation period followed by a 14-day heat stress period. A control group of ten additional cows subjected to the same environmental conditions but not supplemented with sweetener were included for comparison. 16S rRNA gene amplicon sequencing was performed on rumen content and rumen epithelium samples from all animals, and comparisons of rumen content microbiota and rumen epithelial microbiota were made between supplemented and control populations. Supplementation of the saccharin-based sweetener did not affect the rumen content microbiota, but differences in the rumen epithelial microbiota beta-diversity (PERMANOVA, P = 0.003, R2 = 0.12) and alpha-diversity (Chao species richness, P = 0.06 and Shannon diversity, P = 0.034) were detected between the supplemented and control experimental groups. Despite the changes detected in the microbial community, animal performance metrics including feed intake, milk yield, and short-chain fatty acid (acetic, propionic, and butyric acid) concentrations were not different between experimental groups. Thus, under the conditions applied, supplementation with a saccharin-based sweetener does not appear to affect animal performance under heat stress. Additionally, we detected differences in the rumen epithelial microbiota due to heat stress when comparing initial, prestressed microbial communities to the communities after heat stress. Importantly, the changes occurring in the rumen epithelial microbiota may have implications on barrier integrity, oxygen scavenging, and urease activity. This research adds insight into the impact of saccharin-based sweeteners on the rumen microbiota and the responsivity of the rumen epithelial microbiota to different stimuli, providing novel hypotheses for future research.
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Affiliation(s)
- Lucas R Koester
- Department of Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, IA 50011, USA,Interdepartmental Microbiology Graduate Program, Iowa State University, Ames, IA 50011, USA
| | - Kris Hayman
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA 50011, USA
| | - Chiron J Anderson
- Interdepartmental Microbiology Graduate Program, Iowa State University, Ames, IA 50011, USA,Department of Animal Science, Iowa State University, Ames, IA 50011, USA
| | - Bienvenido W Tibbs-Cortes
- Interdepartmental Microbiology Graduate Program, Iowa State University, Ames, IA 50011, USA,Department of Animal Science, Iowa State University, Ames, IA 50011, USA
| | - Karrie M Daniels
- Department of Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, IA 50011, USA
| | - Faith M Seggerman
- Interdepartmental Microbiology Graduate Program, Iowa State University, Ames, IA 50011, USA,Department of Animal Science, Iowa State University, Ames, IA 50011, USA
| | - Patrick J Gorden
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA 50011, USA
| | - Mark Lyte
- Department of Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, IA 50011, USA
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Chen J, Lei Y, Zhang Y, He S, Liu L, Dong X. Beyond sweetness: The high-intensity sweeteners and farm animals. Anim Feed Sci Technol 2020. [DOI: 10.1016/j.anifeedsci.2020.114571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Moran A, Al-Rammahi MA, Daly K, Grand E, Ionescu C, Bravo DM, Wall EH, Shirazi-Beechey SP. Consumption of a Natural High-Intensity Sweetener Enhances Activity and Expression of Rabbit Intestinal Na +/Glucose Cotransporter 1 (SGLT1) and Improves Colibacillosis-Induced Enteric Disorders. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:441-450. [PMID: 31736308 PMCID: PMC7007240 DOI: 10.1021/acs.jafc.9b04995] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 11/14/2019] [Accepted: 11/16/2019] [Indexed: 06/10/2023]
Abstract
Absorption of glucose, via intestinal Na+/glucose cotransporter 1 (SGLT1), activates salt and water absorption and is an effective route for treating Escherichia coli (E. coli)-induced diarrhea. Activity and expression of SGLT1 is regulated by sensing of sugars and artificial/natural sweeteners by the intestinal sweet receptor T1R2-T1R3 expressed in enteroendocrine cells. Diarrhea, caused by the bacterial pathogen E. coli, is the most common post-weaning clinical feature in rabbits, leading to mortality. We demonstrate here that, in rabbits with experimentally E. coli-induced diarrhea, inclusion of a supplement containing stevia leaf extract (SL) in the feed decreases cumulative morbidity, improving clinical signs of disease (p < 0.01). We show that the rabbit intestine expresses T1R2-T1R3. Furthermore, intake of SL enhances activity and expression of SGLT1 and the intestinal capacity to absorb glucose (1.8-fold increase, p < 0.05). Thus, a natural plant extract sweetener can act as an effective feed additive for lessening the negative impact of enteric diseases in animals.
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Affiliation(s)
- Andrew
W. Moran
- Epithelial
Function and Development Group, Institute of Integrative Biology, University of Liverpool, Liverpool L69 7ZB, U.K.
| | - Miran A. Al-Rammahi
- Epithelial
Function and Development Group, Institute of Integrative Biology, University of Liverpool, Liverpool L69 7ZB, U.K.
- Zoonotic
Disease Research Unit, College of Veterinary Medicine, University of Al-Qadisiyah, Al-Diwaniyah 58002, Iraq
| | - Kristian Daly
- Epithelial
Function and Development Group, Institute of Integrative Biology, University of Liverpool, Liverpool L69 7ZB, U.K.
| | | | | | | | - Emma H. Wall
- Pancosma/ADM, Z. A. La Pièce 3, 1180 Rolle, Switzerland
| | - Soraya P. Shirazi-Beechey
- Epithelial
Function and Development Group, Institute of Integrative Biology, University of Liverpool, Liverpool L69 7ZB, U.K.
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6
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Chen X, Nedelkov K, Oh J, Harper M, Wall E, Felix T, Hristov A. Effect of a blend of artificial sweetener and capsicum on productive performance and blood chemistry in growing lambs. Anim Feed Sci Technol 2019. [DOI: 10.1016/j.anifeedsci.2019.114308] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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7
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Han X, Chen C, Zhang X, Wei Y, Tang S, Wang J, Tan Z, Xu L. Effects of Dietary Stevioside Supplementation on Feed Intake, Digestion, Ruminal Fermentation, and Blood Metabolites of Goats. Animals (Basel) 2019; 9:ani9020032. [PMID: 30678077 PMCID: PMC6406306 DOI: 10.3390/ani9020032] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 01/18/2019] [Accepted: 01/21/2019] [Indexed: 11/16/2022] Open
Abstract
Simple Summary This study evaluated the effects of stevioside, a natural sweetener that is an extract of Stevia, on feed intake and feeding behavior of goats. The results demonstrated that the consumption of forage was improved after supplementation with stevioside. Supplementation of stevioside resulted in improved total diet consumption of goats. These results are useful for ruminant producers to use natural sweeteners to regulate the intakes of animals. Abstract The objective of this study was to evaluate the effects of dietary inclusion of stevioside on feed intake, feeding behavior, nutrient digestion, rumen fermentation, and serum biochemical parameters in goats. Nine male Xiangdong black goats (21.8 ± 1.5 kg of body weight) were used in a replicated 3 × 3 Latin square. All goats were fed a basal diet including concentrate and forage (chopped rice straw). The three treatments were 0, 400, or 800 mg stevioside per kg chopped rice straw on a dry matter (DM) basis. Dry matter intake of forage and total diet linearly increased (p = 0.03 and p = 0.04) with increasing stevioside in the diet. There was no effect (p > 0.05) of stevioside inclusion in the diets on eating time, rumination time, or total mastication time for the goats. Total volatile fatty acid (VFA) concentration in the rumen responded quadratically (p < 0.01), decreasing from 0 to 400 mg/kg stevioside inclusion and increasing thereafter. The inclusion of steviosid in the diets promoted a quadratic increase in the apparent total tract digestibilities of neutral detergent fiber (NDF) (p = 0.02) and acid detergent fiber (ADF) (p = 0.01). Based on the results of this experiment, it could be concluded that supplementing goat diets with stevioside at 400 mg/kg to 800 mg/kg forage (about 270 to 541 mg/kg diet) resulted in increased dry intake of forage and total diet, suggesting that stevioside has positive potential as a feed additive to improve feed intake.
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Affiliation(s)
- Xuefeng Han
- Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory forPollution Control and Waste Utilization in Livestock and Poultry Production, South-Central ExperimentalStation of Animal Nutrition and Feed Science in Ministry of Agriculture, Hunan Provincial EngineeringResearch Center for Healthy Livestock and Poultry Production, Institute of Subtropical Agriculture, TheChinese Academy of Sciences (CAS), Changsha 410125, China.
| | - Chaoxi Chen
- College of Life Science and Technology, Southwest University for Nationalities, Chengdu 610041, China.
| | - Xiaoli Zhang
- Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory forPollution Control and Waste Utilization in Livestock and Poultry Production, South-Central ExperimentalStation of Animal Nutrition and Feed Science in Ministry of Agriculture, Hunan Provincial EngineeringResearch Center for Healthy Livestock and Poultry Production, Institute of Subtropical Agriculture, TheChinese Academy of Sciences (CAS), Changsha 410125, China.
| | - Yuqing Wei
- Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory forPollution Control and Waste Utilization in Livestock and Poultry Production, South-Central ExperimentalStation of Animal Nutrition and Feed Science in Ministry of Agriculture, Hunan Provincial EngineeringResearch Center for Healthy Livestock and Poultry Production, Institute of Subtropical Agriculture, TheChinese Academy of Sciences (CAS), Changsha 410125, China.
- College of Life Science and Technology, Southwest University for Nationalities, Chengdu 610041, China.
| | - Shaoxun Tang
- Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory forPollution Control and Waste Utilization in Livestock and Poultry Production, South-Central ExperimentalStation of Animal Nutrition and Feed Science in Ministry of Agriculture, Hunan Provincial EngineeringResearch Center for Healthy Livestock and Poultry Production, Institute of Subtropical Agriculture, TheChinese Academy of Sciences (CAS), Changsha 410125, China.
- Hunan Co-Innovation Center of Animal Production Safety (CICAPS), Changsha 410128, China.
| | - Jiurong Wang
- Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory forPollution Control and Waste Utilization in Livestock and Poultry Production, South-Central ExperimentalStation of Animal Nutrition and Feed Science in Ministry of Agriculture, Hunan Provincial EngineeringResearch Center for Healthy Livestock and Poultry Production, Institute of Subtropical Agriculture, TheChinese Academy of Sciences (CAS), Changsha 410125, China.
| | - Zhiliang Tan
- Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory forPollution Control and Waste Utilization in Livestock and Poultry Production, South-Central ExperimentalStation of Animal Nutrition and Feed Science in Ministry of Agriculture, Hunan Provincial EngineeringResearch Center for Healthy Livestock and Poultry Production, Institute of Subtropical Agriculture, TheChinese Academy of Sciences (CAS), Changsha 410125, China.
- Hunan Co-Innovation Center of Animal Production Safety (CICAPS), Changsha 410128, China.
| | - Liwei Xu
- Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory forPollution Control and Waste Utilization in Livestock and Poultry Production, South-Central ExperimentalStation of Animal Nutrition and Feed Science in Ministry of Agriculture, Hunan Provincial EngineeringResearch Center for Healthy Livestock and Poultry Production, Institute of Subtropical Agriculture, TheChinese Academy of Sciences (CAS), Changsha 410125, China.
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8
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Abstract
Food plays an essential role in normal cellular processes; however, certain foods may also trigger or worsen certain disease states. This article focuses particularly on the role of food in common gastrointestinal and liver diseases, and discusses the current evidence that either supports or debunks common dietary recommendations. Nutrition topics discussed include the use of artificial sweetener for weight loss, avoidance of all dairy products in the setting of lactose intolerance, dietary recommendations for diverticular disease, and dietary management in cirrhotic patients with hepatic encephalopathy.
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Affiliation(s)
- Michelle Pearlman
- Gastroenterology and Hepatology Fellow, Department of Internal Medicine, Division of Digestive and Liver Diseases, University of Texas Southwestern, 5323 Harry Hines Boulevard, Dallas, TX 75390-9151, USA.
| | - Oviea Akpotaire
- Department of Internal Medicine, University of Texas Southwestern, 5323 Harry Hines Boulevard, Dallas, TX 75390-9151, USA
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9
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Performance, health and physiological responses of newly weaned feedlot cattle supplemented with feed-grade antibiotics or alternative feed ingredients. Animal 2018; 12:2521-2528. [DOI: 10.1017/s1751731118000551] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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10
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Abstract
PURPOSE OF REVIEW The purpose of this paper is to review the epidemiology of obesity and the evolution of artificial sweeteners; to examine the latest research on the effects of artificial sweeteners on the host microbiome, the gut-brain axis, glucose homeostasis, and energy consumption; and to discuss how all of these changes ultimately contribute to obesity. RECENT FINDINGS Although artificial sweeteners were developed as a sugar substitute to help reduce insulin resistance and obesity, data in both animal models and humans suggest that the effects of artificial sweeteners may contribute to metabolic syndrome and the obesity epidemic. Artificial sweeteners appear to change the host microbiome, lead to decreased satiety, and alter glucose homeostasis, and are associated with increased caloric consumption and weight gain. Artificial sweeteners are marketed as a healthy alternative to sugar and as a tool for weight loss. Data however suggests that the intended effects do not correlate with what is seen in clinical practice. Future research should focus on the newer plant-based sweeteners, incorporate extended study durations to determine the long-term effects of artificial sweetener consumption, and focus on changes in the microbiome, as that seems to be one of the main driving forces behind nutrient absorption and glucose metabolism.
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Affiliation(s)
- Michelle Pearlman
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Texas Southwestern Medical Center, 5323 Harry Hines, K5.136, Dallas, TX, 75390, USA.
| | - Jon Obert
- Division of Gastroenterology and Hepatology, University of Louisville, Louisville, KY, USA
| | - Lisa Casey
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Texas Southwestern Medical Center, 5323 Harry Hines, K5.136, Dallas, TX, 75390, USA
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Connor EE, Evock-Clover CM, Wall EH, Baldwin RL, Santin-Duran M, Elsasser TH, Bravo DM. Glucagon-like peptide 2 and its beneficial effects on gut function and health in production animals. Domest Anim Endocrinol 2016; 56 Suppl:S56-65. [PMID: 27345324 DOI: 10.1016/j.domaniend.2015.11.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 11/17/2015] [Accepted: 11/26/2015] [Indexed: 12/12/2022]
Abstract
Numerous endocrine cell subtypes exist within the intestinal mucosa and produce peptides contributing to the regulation of critical physiological processes including appetite, energy metabolism, gut function, and gut health. The mechanisms of action and the extent of the physiological effects of these enteric peptides are only beginning to be uncovered. One peptide in particular, glucagon-like peptide 2 (GLP-2) produced by enteroendocrine L cells, has been fairly well characterized in rodent and swine models in terms of its ability to improve nutrient absorption and healing of the gut after injury. In fact, a long-acting form of GLP-2 recently has been approved for the management and treatment of human conditions like inflammatory bowel disease and short bowel syndrome. However, novel functions of GLP-2 within the gut continue to be demonstrated, including its beneficial effects on intestinal barrier function and reducing intestinal inflammation. As knowledge continues to grow about GLP-2's effects on the gut and its mechanisms of release, the potential to use GLP-2 to improve gut function and health of food animals becomes increasingly more apparent. Thus, the purpose of this review is to summarize: (1) the current understanding of GLP-2's functions and mechanisms of action within the gut; (2) novel applications of GLP-2 (or stimulators of its release) to improve general health and production performance of food animals; and (3) recent findings, using dairy calves as a model, that suggest the therapeutic potential of GLP-2 to reduce the pathogenesis of intestinal protozoan infections.
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Affiliation(s)
- E E Connor
- US Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Beltsville, MD 20705 USA.
| | - C M Evock-Clover
- US Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Beltsville, MD 20705 USA
| | - E H Wall
- Pancosma S.A., CH-1218 Geneva, Switzerland
| | - R L Baldwin
- US Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Beltsville, MD 20705 USA
| | - M Santin-Duran
- US Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Beltsville, MD 20705 USA
| | - T H Elsasser
- US Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Beltsville, MD 20705 USA
| | - D M Bravo
- Pancosma S.A., CH-1218 Geneva, Switzerland
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12
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Shearer J, Swithers SE. Artificial sweeteners and metabolic dysregulation: Lessons learned from agriculture and the laboratory. Rev Endocr Metab Disord 2016; 17:179-86. [PMID: 27387506 DOI: 10.1007/s11154-016-9372-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Escalating rates of obesity and public health messages to reduce excessive sugar intake have fuelled the consumption of artificial sweeteners in a wide range of products from breakfast cereals to snack foods and beverages. Artificial sweeteners impart a sweet taste without the associated energy and have been widely recommended by medical professionals since they are considered safe. However, associations observed in long-term prospective studies raise the concern that regular consumption of artificial sweeteners might actually contribute to development of metabolic derangements that lead to obesity, type 2 diabetes and cardiovascular disease. Obtaining mechanistic data on artificial sweetener use in humans in relation to metabolic dysfunction is difficult due to the long time frames over which dietary factors might exert their effects on health and the large number of confounding variables that need to be considered. Thus, mechanistic data from animal models can be highly useful because they permit greater experimental control. Results from animal studies in both the agricultural sector and the laboratory indicate that artificial sweeteners may not only promote food intake and weight gain but can also induce metabolic alterations in a wide range of animal species. As a result, simple substitution of artificial sweeteners for sugars in humans may not produce the intended consequences. Instead consumption of artificial sweeteners might contribute to increases in risks for obesity or its attendant negative health outcomes. As a result, it is critical that the impacts of artificial sweeteners on health and disease continue to be more thoroughly evaluated in humans.
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Affiliation(s)
- Jane Shearer
- Faculty of Kinesiology, University of Calgary, 2500 University Drive NW, Calgary, Alberta, T2N 1N4, Canada
| | - Susan E Swithers
- Department of Psychological Sciences, Purdue University, 703 Third Street, West Lafayette, IN, 47907, USA.
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