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Ge Q, Yan Y, Luo Y, Teng T, Cao C, Zhao D, Zhang J, Li C, Chen W, Yang B, Yi Z, Chang T, Chen X. Dietary supplements: clinical cholesterol-lowering efficacy and potential mechanisms of action. Int J Food Sci Nutr 2024; 75:349-368. [PMID: 38659110 DOI: 10.1080/09637486.2024.2342301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 04/06/2024] [Indexed: 04/26/2024]
Abstract
This review aims to analyse the efficacy of dietary supplements in reducing plasma cholesterol levels. Focusing on evidence from meta-analyses of randomised controlled clinical trials, with an emphasis on potential mechanisms of action as supported by human, animal, and cell studies. Certain dietary supplements including phytosterols, berberine, viscous soluble dietary fibres, garlic supplements, soy protein, specific probiotic strains, and certain polyphenol extracts could significantly reduce plasma total and low-density lipoprotein (LDL) cholesterol levels by 3-25% in hypercholesterolemic patients depending on the type of supplement. They tended to be more effective in reducing plasma LDL cholesterol level in hypercholesterolemic individuals than in normocholesterolemic individuals. These supplements worked by various mechanisms, such as enhancing the excretion of bile acids, inhibiting the absorption of cholesterol in the intestines, increasing the expression of hepatic LDL receptors, suppressing the activity of enzymes involved in cholesterol synthesis, and activating the adenosine monophosphate-activated protein kinase signalling pathway.
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Affiliation(s)
- Qian Ge
- Institute of Quality Standard and Testing Technology of Agricultural Products, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, China
| | - Yue Yan
- Institute of Quality Standard and Testing Technology of Agricultural Products, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, China
| | - Yang Luo
- Ningxia Institute of Science and Technology Development Strategy and Information, Yinchuan, China
| | - Tai Teng
- Ningxia Guolong Hospital Co., LTD, Yinchuan, China
| | - Caixia Cao
- People's Hospital of Ningxia Hui Autonomous Region, Yinchuan, China
| | - Danqing Zhao
- Institute of Quality Standard and Testing Technology of Agricultural Products, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, China
| | - Jing Zhang
- Institute of Quality Standard and Testing Technology of Agricultural Products, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, China
| | - Caihong Li
- Institute of Quality Standard and Testing Technology of Agricultural Products, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, China
| | - Wang Chen
- Institute of Quality Standard and Testing Technology of Agricultural Products, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, China
| | - Binkun Yang
- Institute of Quality Standard and Testing Technology of Agricultural Products, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, China
| | - Zicheng Yi
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Tengwen Chang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Xiang Chen
- Institute of Quality Standard and Testing Technology of Agricultural Products, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, China
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Kapoor MP, Yamaguchi H, Ishida H, Mizutani Y, Timm D, Abe A. The effects of prebiotic partially hydrolyzed guar gum on skin hydration: A randomized, open-label, parallel, controlled study in healthy humans. J Funct Foods 2023. [DOI: 10.1016/j.jff.2023.105494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2023] Open
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Abe A, Morishima S, Kapoor MP, Inoue R, Tsukahara T, Naito Y, Ozeki M. Partially hydrolyzed guar gum is associated with improvement in gut health, sleep, and motivation among healthy subjects. J Clin Biochem Nutr 2023; 72:189-197. [PMID: 36936875 PMCID: PMC10017317 DOI: 10.3164/jcbn.22-75] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 09/27/2022] [Indexed: 01/15/2023] Open
Abstract
Partially hydrolyzed guar gum dietary fiber is well recognized for a number of health benefits. In the present study, we aim to investigate the effects of partially hydrolyzed guar gum on constipation, intestinal microbiota as well as mental health in healthy subjects. In the randomized, parallel, double-blind, and placebo-controlled study the enrolled healthy men and women volunteers took either 3 g/day (T3) or 5 g/day (T5) of dietary fiber intakes for eight consecutive weeks compared to placebo (T0). The fecal characteristics, fecal microbiota, defecation characteristics, and quality of life (QOL) questionnaire were investigated. The results revealed a significant suppression in fecal potent harmful mucolytic bacteria in the T3 and T5 groups compared to the T0 group. The defecation frequency, excretory feeling, and scores of sleep and motivation questionnaire were also improved in the dietary fiber intake groups, showing a significant difference in the T5 group compared to the T0 group. In summary, the consumption of partially hydrolyzed guar gum dietary fiber is found effective in suppressing the potent harmful mucolytic bacteria that could be associated with the improvement of constipation-related symptoms including mental health in terms of sleep and motivation among the healthy subjects.
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Affiliation(s)
- Aya Abe
- Nutrition Division, Taiyo Kagaku Co. Ltd., 1-3 Takaramachi, Yokkaichi, Mie 510-0844, Japan
- To whom correspondence should be addressed. E-mail:
| | - So Morishima
- Nutrition Division, Taiyo Kagaku Co. Ltd., 1-3 Takaramachi, Yokkaichi, Mie 510-0844, Japan
| | - Mahendra P. Kapoor
- Nutrition Division, Taiyo Kagaku Co. Ltd., 1-3 Takaramachi, Yokkaichi, Mie 510-0844, Japan
| | - Ryo Inoue
- Laboratory of Animal Science, Department of Applied Biological Sciences, Faculty of Agriculture, Setsunan University, Nagatoge-cho 45-1, Hirakata, Osaka 573-0101, Japan
| | | | - Yuji Naito
- Department of Human Immunology and Nutrition Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Makoto Ozeki
- Nutrition Division, Taiyo Kagaku Co. Ltd., 1-3 Takaramachi, Yokkaichi, Mie 510-0844, Japan
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Therapeutic Benefits and Dietary Restrictions of Fiber Intake: A State of the Art Review. Nutrients 2022; 14:nu14132641. [PMID: 35807822 PMCID: PMC9268622 DOI: 10.3390/nu14132641] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 06/21/2022] [Accepted: 06/23/2022] [Indexed: 02/04/2023] Open
Abstract
Throughout history, malnutrition and deficiency diseases have been a problem for our planet’s population. A balanced diet significantly influences everyone’s health, and fiber intake appears to play a more important role than previously thought. The natural dietary fibers are a category of carbohydrates in the constitution of plants that are not completely digested in the human intestine. High-fiber foods, such as fruits, vegetables and whole grains, have consistently been highly beneficial to health and effectively reduced the risk of disease. Although the mode of action of dietary fiber in the consumer body is not fully understood, nutritionists and health professionals unanimously recognize the therapeutic benefits. This paper presents the fiber consumption in different countries, the metabolism of fiber and the range of health benefits associated with fiber intake. In addition, the influence of fiber intake on the intestinal microbiome, metabolic diseases (obesity and diabetes), neurological aspects, cardiovascular diseases, autoimmune diseases and cancer prevention are discussed. Finally, dietary restrictions and excess fiber are addressed, which can cause episodes of diarrhea and dehydration and increase the likelihood of bloating and flatulence or even bowel obstruction. However, extensive studies are needed regarding the composition and required amount of fiber in relation to the metabolism of saprotrophic microorganisms from the enteral level and the benefits of the various pathologies with which they can be correlated.
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Suresh H, Zhou J, Ho V. The Short-Term Effects and Tolerability of Low-Viscosity Soluble Fibre on Gastroparesis Patients: A Pilot Clinical Intervention Study. Nutrients 2021; 13:4298. [PMID: 34959850 PMCID: PMC8704257 DOI: 10.3390/nu13124298] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 11/22/2021] [Accepted: 11/26/2021] [Indexed: 12/13/2022] Open
Abstract
Gastroparesis is a motility disorder that causes severe gastric symptoms and delayed gastric emptying, where the majority of sufferers are females (80%), with 29% of sufferers also diagnosed with Type-1 or Type-2 diabetes. Current clinical recommendations involve stringent dietary restriction and includes the avoidance and minimization of dietary fibre. Dietary fibre lowers the glycaemic index of food, reduces inflammation and provides laxation. Lack of dietary fibre in the diet can affect long-term gastrointestinal health. Our previously published rheological study demonstrated that "low-viscosity" soluble fibres could be a potentially tolerable source of fibre for the gastroparetic population. A randomised controlled crossover pilot clinical study was designed to compare Partially-hydrolysed guar gum or PHGG (test fibre 1), gum Arabic (test fibre 2), psyllium husk (positive control) and water (negative control) in mild-to-moderate symptomatic gastroparesis patients (requiring no enteral tube feeding). The principal aim of the study was to determine the short-term physiological effects and tolerability of the test fibres. In n = 10 female participants, post-prandial blood glucose, gastroparesis symptoms, and breath test measurements were recorded. Normalized clinical data revealed that test fibres PHGG and gum Arabic were able to regulate blood glucose comparable to psyllium husk, while causing far fewer symptoms, equivalent to negative control. The test fibres did not greatly delay mouth-to-caecum transit, though more data is needed. The study data looks promising, and a longer-term study investigating these test fibres is being planned.
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Affiliation(s)
- Harsha Suresh
- School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia; (H.S.); (V.H.)
- Gastrointestinal Motility Disorders Unit, Western Sydney University, Campbelltown, NSW 2560, Australia
| | - Jerry Zhou
- School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia; (H.S.); (V.H.)
- Gastrointestinal Motility Disorders Unit, Western Sydney University, Campbelltown, NSW 2560, Australia
| | - Vincent Ho
- School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia; (H.S.); (V.H.)
- Gastrointestinal Motility Disorders Unit, Western Sydney University, Campbelltown, NSW 2560, Australia
- University Medical Clinic of Camden & Campbelltown (UMCCC), Campbelltown, NSW 2560, Australia
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Njapndounke B, Dandji Saah MB, Foko Kouam ME, Boungo GT, Ngoufack FZ. Optimum biscuit from Musa sapientum L . and Vigna unguiculata L. composite flour: effect on pancreatic histology, biochemical and hematological parameters of diabetic rats. Heliyon 2021; 7:e07987. [PMID: 34585009 PMCID: PMC8455668 DOI: 10.1016/j.heliyon.2021.e07987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 07/14/2021] [Accepted: 09/10/2021] [Indexed: 11/26/2022] Open
Abstract
This study investigated the effect of consumption of an optimum biscuit from composite flour of Musa sapientum L. ('banana cochon') and Vigna unguiculata L. (cowpea) on the pancreatic histology, biochemical and hematological parameters of streptozotocin-induced diabetic Wistar rats. The optimum biscuit was evaluated for its chemical properties and glycaemic index. The weekly fasting blood glucose level, food intake and weight of the rats were recorded. The effect of 28 days' consumption of different percentages of optimum biscuit with/without Metformin was also evaluated on the pancreatic histology, biochemical and hematological parameters of rats. Results showed that, the optimum biscuit is rich in minerals (potassium, magnesium and calcium), dietary fibre (9.4%) and is a low glycaemic index product (50.91%). Also, the optimum biscuit significantly lowered/maintained the blood glucose level of diabetic rats even though the weekly weights of the rats were reduced while food intake increased. Nonetheless, the hematological parameters of the treated diabetic rats were significantly (P < 0.05) improved when compared to the untreated diabetic rats groups. With the exception of total serum protein, other biochemical parameters such as serum creatinine, urea, alanine aminotransferase, alkaline phosphatase, aspartate aminotransferase and bilirubin in the treated diabetic groups were significantly (P < 0.05) reduced or closer to those of non-diabetic rats. The serum cholesterol, triglyceride, low-density lipoprotein levels were significantly (p < 0.05) reduced while the HDL level significantly increased in treated diabetic groups. Histological examination of the pancreas showed that treatment of diabetic groups with optimum biscuit was able to slow down the destruction (protection) of beta-cells. Thus, optimum biscuit could be used to improve the health status during the management and prevention of complications in diabetic patients.
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Affiliation(s)
- Bilkissou Njapndounke
- Research Unit of Biochemistry, Medicinal Plants, Food Sciences and Nutrition (URBPMAN), Department of Biochemistry, Faculty of Science, University of Dschang, Cameroon
| | - Marc Bertrand Dandji Saah
- Research Unit of Biochemistry, Medicinal Plants, Food Sciences and Nutrition (URBPMAN), Department of Biochemistry, Faculty of Science, University of Dschang, Cameroon
| | - Marius Edith Foko Kouam
- Research Unit of Biochemistry, Medicinal Plants, Food Sciences and Nutrition (URBPMAN), Department of Biochemistry, Faculty of Science, University of Dschang, Cameroon
| | | | - Francois Zambou Ngoufack
- Research Unit of Biochemistry, Medicinal Plants, Food Sciences and Nutrition (URBPMAN), Department of Biochemistry, Faculty of Science, University of Dschang, Cameroon
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Cronin P, Joyce SA, O’Toole PW, O’Connor EM. Dietary Fibre Modulates the Gut Microbiota. Nutrients 2021; 13:nu13051655. [PMID: 34068353 PMCID: PMC8153313 DOI: 10.3390/nu13051655] [Citation(s) in RCA: 242] [Impact Index Per Article: 80.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 05/06/2021] [Accepted: 05/11/2021] [Indexed: 12/14/2022] Open
Abstract
Dietary fibre has long been established as a nutritionally important, health-promoting food ingredient. Modern dietary practices have seen a significant reduction in fibre consumption compared with ancestral habits. This is related to the emergence of low-fibre “Western diets” associated with industrialised nations, and is linked to an increased prevalence of gut diseases such as inflammatory bowel disease, obesity, type II diabetes mellitus and metabolic syndrome. The characteristic metabolic parameters of these individuals include insulin resistance, high fasting and postprandial glucose, as well as high plasma cholesterol, low-density lipoprotein (LDL) and high-density lipoprotein (HDL). Gut microbial signatures are also altered significantly in these cohorts, suggesting a causative link between diet, microbes and disease. Dietary fibre consumption has been hypothesised to reverse these changes through microbial fermentation and the subsequent production of short-chain fatty acids (SCFA), which improves glucose and lipid parameters in individuals who harbour diseases associated with dysfunctional metabolism. This review article examines how different types of dietary fibre can differentially alter glucose and lipid metabolism through changes in gut microbiota composition and function.
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Affiliation(s)
- Peter Cronin
- Department of Biological Sciences, University of Limerick, V94 T9PX Limerick, Ireland;
- APC Microbiome Ireland, University College Cork, T12 K8AF Cork, Ireland; (S.A.J.); (P.W.O.)
| | - Susan A. Joyce
- APC Microbiome Ireland, University College Cork, T12 K8AF Cork, Ireland; (S.A.J.); (P.W.O.)
- School of Biochemistry and Cell Biology, University College Cork, T12 K8AF Cork, Ireland
| | - Paul W. O’Toole
- APC Microbiome Ireland, University College Cork, T12 K8AF Cork, Ireland; (S.A.J.); (P.W.O.)
- Department of Microbiology, University College Cork, T12 K8AF Cork, Ireland
| | - Eibhlís M. O’Connor
- Department of Biological Sciences, University of Limerick, V94 T9PX Limerick, Ireland;
- APC Microbiome Ireland, University College Cork, T12 K8AF Cork, Ireland; (S.A.J.); (P.W.O.)
- Health Research Institute, University of Limerick, V94 T9PX Limerick, Ireland
- Correspondence:
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Tan H, Nie S. Functional hydrocolloids, gut microbiota and health: picking food additives for personalized nutrition. FEMS Microbiol Rev 2021; 45:6123724. [PMID: 33512498 DOI: 10.1093/femsre/fuaa065] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 12/02/2020] [Indexed: 12/15/2022] Open
Abstract
The human gut microbiota respond to particular food components, interact with intestinal mucosa and thereby contribute to health and diseases. Key microbiome features are under comprehensive investigation and are likely to be developed as reliable evidences for clinical diagnosis. And the underlying mechanisms lay the foundation of assembling bespoke nutritional ingredients including functional food additives that may lead to favorable outcomes in facilitating amelioration of host dysfunctions. Functional hydrocolloids serve as multiple food additives with promising application prospects and outstanding adjunctive beneficial characteristics. Therefore, in this review, we introduce the latest advances in food additives-gut microbiota-host axis by summarizing the physiochemical and physiological properties of a collection of functional hydrocolloids from various sources, describing the functional hydrocolloids-related intestinal commensal markers, and deciphering the underlying mechanisms of their beneficial effects, and propose the feasibilities and guidelines for further developments of gut microbiota-oriented personalized nutrition.
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Affiliation(s)
- Huizi Tan
- State Key Laboratory of Food Science and Technology, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Nanchang University, China
| | - Shaoping Nie
- State Key Laboratory of Food Science and Technology, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Nanchang University, China
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Wang NN, Liu J, Li YX, Ma JW, Yan QJ, Jiang ZQ. High-level expression of a glycoside hydrolase family 26 β-mannanase from Aspergillus niger in Pichia pastoris for production of partially hydrolysed fenugreek gum. Process Biochem 2021. [DOI: 10.1016/j.procbio.2020.09.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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10
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Potato Preload Mitigated Postprandial Glycemic Excursion in Healthy Subjects: An Acute Randomized Trial. Nutrients 2020; 12:nu12092759. [PMID: 32927753 PMCID: PMC7551673 DOI: 10.3390/nu12092759] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 08/28/2020] [Accepted: 09/07/2020] [Indexed: 01/10/2023] Open
Abstract
This study investigated the preload effect of the medium and high glycemic index (GI) potato, as well as the combination of partially hydrolyzed guar gum (HG) and potato, when ingested prior to a rice meal, on the iso-carbohydrate basis. In a randomized crossover trial, 17 healthy female subjects consumed (1) rice; (2) co-ingestion of highly cooked potato (HP), and rice (HP + R); (3) co-ingestion of minimally cooked potato (MP) and rice (MP + R); (4) preload HP prior to rice meal (PHP + R); (5) preload MP prior to rice meal (PMP + R); (6) co-ingestion of partially hydrolyzed guar gum (HG), HP and rice (HG + HP + R); (7) preload HG prior to co-ingestion of HP and rice (PHG + HP + R); (8) co-preload of HG and HP prior to rice (PHG + PHP + R); and (9) preload of HP prior to co-ingestion of HG and rice (PHP + HG + R). Postprandial glycemic response (GR) tests and subjective satiety tests were conducted for each test food. Cooked potato as a preload to a rice meal could significantly cut the acute postprandial glycemic excursion by around 1.0 mmol/L, irrespective of the GI of the preload. Co-preload of partial hydrolyzed guar gum and highly cooked potato (PHG + PHP + R) resulted in improved acute GR in terms of peak glucose value and glycemic excursion compared with either HG preload or HP preload. All the meals with preload showed comparable or improved self-reported satiety. Within an equicarbohydrate exchange framework, both high-GI and medium-GI potato preload decreased the postprandial glycemic excursion in young healthy female subjects. The combination of HG and HP as double preload resulted in better GR than both single HG or HP preload did.
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Kapoor MP, Koido M, Kawaguchi M, Timm D, Ozeki M, Yamada M, Mitsuya T, Okubo T. Lifestyle related changes with partially hydrolyzed guar gum dietary fiber in healthy athlete individuals – A randomized, double-blind, crossover, placebo-controlled gut microbiome clinical study. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104067] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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Armet AM, Deehan EC, Thöne JV, Hewko SJ, Walter J. The Effect of Isolated and Synthetic Dietary Fibers on Markers of Metabolic Diseases in Human Intervention Studies: A Systematic Review. Adv Nutr 2020; 11:420-438. [PMID: 31342059 PMCID: PMC7442353 DOI: 10.1093/advances/nmz074] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 05/22/2019] [Accepted: 06/14/2019] [Indexed: 12/25/2022] Open
Abstract
Observational studies provide strong evidence for the health benefits of dietary fiber (DF) intake; however, human intervention studies that supplement isolated and synthetic DFs have shown inconsistent results. Therefore, we conducted a systematic review to summarize the effects of DF supplementation on immunometabolic disease markers in intervention studies in healthy adults, and considered the role of DF dose, DF physicochemical properties, intervention duration, and the placebo used. Five databases were searched for studies published from 1990 to 2018 that assessed the effect of DF on immunometabolic markers. Eligible studies were those that supplemented isolated or synthetic DFs for ≥2 wk and reported baseline data to assess the effect of the placebo. In total, 77 publications were included. DF supplementation reduced total cholesterol (TC), LDL cholesterol, HOMA-IR, and insulin AUC in 36-49% of interventions. In contrast, <20% of the interventions reduced C-reactive protein (CRP), IL-6, glucose, glucose AUC, insulin, HDL cholesterol, and triglycerides. A higher proportion of interventions showed an effect if they used higher DF doses for CRP, TC, and LDL cholesterol (40-63%), viscous and mixed plant cell wall DFs for TC and LDL cholesterol (>50%), and longer intervention durations for CRP and glucose (50%). Half of the placebo-controlled studies used digestible carbohydrates as the placebo, which confounded findings for IL-6, glucose AUC, and insulin AUC. In conclusion, interventions with isolated and synthetic DFs resulted mainly in improved cholesterol concentrations and an attenuation of insulin resistance, whereas markers of dysglycemia and inflammation were largely unaffected. Although more research is needed to make reliable recommendations, a more targeted supplementation of DF with specific physicochemical properties at higher doses and for longer durations shows promise in enhancing several of its health effects.
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Affiliation(s)
- Anissa M Armet
- Department of Agricultural, Food, and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada
| | - Edward C Deehan
- Department of Agricultural, Food, and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada,Address correspondence to ECD (e-mail: )
| | - Julia V Thöne
- Department of Agricultural, Food, and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada,Medical Department, Justus-Liebig University Giessen, Giessen, Germany
| | - Sarah J Hewko
- Department of Applied Human Sciences, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada
| | - Jens Walter
- Department of Agricultural, Food, and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada,Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada,Address correspondence to JW (e-mail: )
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Zaharudin N, Staerk D, Dragsted LO. Inhibition of α-glucosidase activity by selected edible seaweeds and fucoxanthin. Food Chem 2019; 270:481-486. [PMID: 30174076 DOI: 10.1016/j.foodchem.2018.07.142] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 07/19/2018] [Accepted: 07/21/2018] [Indexed: 11/30/2022]
Abstract
A 5 mg/mL solution of water, methanol and acetone extracts of seaweeds were used for α-glucosidase inhibition assay hyphenated with high performance liquid chromatography-mass spectrometry (HPLC-HRMS). The results showed acetone extracts of Undaria pinnatifida has the strongest inhibitory effect against α-glucosidase activity with IC50 0.08 ± 0.002 mg/mL. The active compound found in Undaria pinnatifida was identified as fucoxanthin. Analytical standard sample of fucoxanthin significantly inhibited α-glucosidase with IC50 value 0.047 ± 0.001 mg/mL. An inhibition kinetics study indicates that fucoxanthin is showing mixed-type inhibition. These results suggest that Undaria pinnatifida has a potential to inhibit α-glucosidase and may be used as a bioactive food ingredient for glycaemic control.
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Affiliation(s)
- Nazikussabah Zaharudin
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen DK-1958, Denmark; Faculty of Industrial Sciences & Technology, Universiti Malaysia Pahang, 26300 Gambang, Pahang, Malaysia.
| | - Dan Staerk
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - Lars Ove Dragsted
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen DK-1958, Denmark
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Cassidy YM, McSorley EM, Allsopp PJ. Effect of soluble dietary fibre on postprandial blood glucose response and its potential as a functional food ingredient. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.05.019] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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15
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Li YX, Yi P, Wang NN, Liu J, Liu XQ, Yan QJ, Jiang ZQ. High level expression of β-mannanase ( Rm Man5A) in Pichia pastoris for partially hydrolyzed guar gum production. Int J Biol Macromol 2017; 105:1171-1179. [DOI: 10.1016/j.ijbiomac.2017.07.150] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 07/24/2017] [Accepted: 07/25/2017] [Indexed: 01/04/2023]
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16
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Impact of partially hydrolyzed guar gum (PHGG) on constipation prevention: A systematic review and meta-analysis. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.03.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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17
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Aggarwal D, Sabikhi L, Lamba H, Chaudhary N, Kapila R. Whole grains and resistant starch rich, reduced-calorie biscuit diet as a hypoglycaemic, hypolipidaemic and insulin stimulator in streptozotocin-induced diabetic rats. Int J Food Sci Technol 2016. [DOI: 10.1111/ijfs.13269] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Dipesh Aggarwal
- Dairy Technology Division; National Dairy Research Institute; Karnal 132001 Haryana India
| | - Latha Sabikhi
- Dairy Technology Division; National Dairy Research Institute; Karnal 132001 Haryana India
| | - Heena Lamba
- Dairy Technology Division; National Dairy Research Institute; Karnal 132001 Haryana India
| | - Neha Chaudhary
- Dairy Technology Division; National Dairy Research Institute; Karnal 132001 Haryana India
| | - Rajeev Kapila
- Animal Biochemistry Division; National Dairy Research Institute; Karnal 132001 Haryana India
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