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Bacha AA, Suhail M, Awwad FA, Ismail EAA, Ahmad H. Role of dietary fiber and lifestyle modification in gut health and sleep quality. Front Nutr 2024; 11:1324793. [PMID: 38633603 PMCID: PMC11022964 DOI: 10.3389/fnut.2024.1324793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 02/16/2024] [Indexed: 04/19/2024] Open
Abstract
Dietary fiber has an immense role in the gut microbiome by modulating juvenile growth, immune system maturation, glucose, and lipid metabolism. Lifestyle changes might disrupt gut microbiota symbiosis, leading to various chronic diseases with underlying inflammatory conditions, obesity, and its associated pathologies. An interventional study of 16 weeks examined the impact of psyllium husk fiber with and without lifestyle modification on gut health and sleep quality in people with central obesity (men = 60 and women = 60), those aged from 40 to 60 years, those having WC ≥ 90 cm (men) and WC ≥ 80 cm (women), and no history of any chronic disease or regular medication. The participants were subgrouped into three intervention groups, namely, the psyllium husk fiber (PSH) group, the lifestyle modification (LSM) group, and the LSM&PSH group and control group with equal gender bifurcation (men = 15 and women = 15). A 24-h dietary recall, gastrointestinal tract (GIT) symptoms, and sleep quality analysis data were collected on validated questionnaires. The analyses of variance and covariance were used for baseline and post-intervention, respectively. Student's t-test was applied for pre- and post-intervention changes on the variable of interest. The intervention effect on GIT health was highly significant (P < 0.001). The mean GIT scores of the LSM, PSH, and LSM&PSH groups were 2.99 ± 0.14, 2.49 ± 0.14, and 2.71 ± 0.14, respectively, compared to the mean GIT scores of the control group. No significant (P = 0.205) effect of either intervention was observed on sleep quality. The study concluded that psyllium husk fiber significantly improved the GIT symptoms, while no significant effect of the intervention was observed on sleep quality analysis.
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Affiliation(s)
- Amjad Ali Bacha
- Department of Human Nutrition, The University of Agriculture Peshawar, Peshawar, Pakistan
- Amir Muhammad Khan Campus Mardan, The University of Agriculture Peshawar, Peshawar, Pakistan
| | - Muhammad Suhail
- Amir Muhammad Khan Campus Mardan, The University of Agriculture Peshawar, Peshawar, Pakistan
| | - Fuad A. Awwad
- Department of Quantitative Analysis, College of Business Administration, King Saud University, Riyadh, Saudi Arabia
| | - Emad A. A. Ismail
- Department of Quantitative Analysis, College of Business Administration, King Saud University, Riyadh, Saudi Arabia
| | - Hijaz Ahmad
- Center for Applied Mathematics and Bioinformatics, Gulf University for Science and Technology, Mishref, Kuwait
- Department of Computer Science and Mathematics, Lebanese American University, Beirut, Lebanon
- Section of Mathematics, International Telematic University Uninettuno, Rome, Italy
- Near East University, Operational Research Center in Healthcare, Nicosia, Türkiye
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Zhao M, Wang B, Li L, Zhao W. Anti-Obesity Effects of Dietary Fibers Extracted from Flaxseed Cake in Diet-Induced Obese Mice. Nutrients 2023; 15:nu15071718. [PMID: 37049557 PMCID: PMC10097256 DOI: 10.3390/nu15071718] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 04/03/2023] Open
Abstract
Although many efforts have been made to characterize the functional properties of flaxseed, knowledge concerning the properties of insoluble and soluble dietary fibers in flaxseed is still limited. Here, insoluble and soluble dietary fibers were extracted from flaxseed cake—a valuable resource that has not been fully exploited. Subsequently, their monosaccharide compositions, structural properties, and anti-obesity effects in male mice were characterized. The anti-obesity effects of flaxseed cake insoluble dietary fiber (FIDF), flaxseed cake soluble dietary fiber (FSDF), and FIDF combined with FSDF in diet-induced obese mice were investigated in our study. Supplementation with FSDF alone or FIDF and FSDF together lowered the fat accumulation, improved the serum lipid profile, increased the basal metabolism, and improved the gut microbiota of obese mice. Supplementation with FIDF and FSDF together significantly enriched the abundance of g_Akkermansia and g_Bifidobacterium, which are negatively associated with obesity. Supplementation with FIDF alone improved the liver lipid profile, raised the basal metabolism, and enhanced the short-chain fatty acid levels in the guts of the mice. In conclusion, our results collectively support the therapeutic potential of FIDF and FSDF in obesity treatment and indicate that FIDF and FSDF play different roles in the process of obesity treatment. Furthermore, our results provide critical information for flaxseed cake resource exploitation.
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Affiliation(s)
- Manman Zhao
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Beibei Wang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Li Li
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Wei Zhao
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
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3
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A systematic review and meta-analysis of almond effect on C-reactive protein and interleukin-6 in adults. Complement Ther Med 2023; 72:102911. [PMID: 36535459 DOI: 10.1016/j.ctim.2022.102911] [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: 07/06/2022] [Revised: 10/03/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND The previous articles have shown that the almond might reduce the serum concentration of inflammatory mediators. Therefore, the studies reported in this article aimed to assess the almond effect on serum concentration of C-reactive protein (CRP) and interleukin-6 (IL-6) in adults. METHOD AND MATERIALS To find the related English-language studies, an electronic search was run in databases including Web of Science, PubMed, SCOPUS, ClinicalTrials.gov, and Cochrane library with no time limit (up to August 2022). The effect sizes were calculated based on the mean changes for both intervention and comparison groups. DerSimonian and Laird random-effects model was used to determine the summary of overall effects and their heterogeneity. Cochran's Q test and I-squared statistic were used to explore the statistical heterogeneity. RESULTS In total, eleven studies were included in this study. The overall estimate indicated that the almond consumption had no significant effect on serum CRP level (weighted mean difference (WMD) = -0.28 mg/l, 95 % confidence interval (CI): - 0.81, 0.25; p = 0.29). Regarding IL-6, almond consumption significantly decreased serum IL-6 level (WMD = -0.1 pg/ml, 95 % CI: -0.15, -0.05; p < 0.001). CONCLUSION The overall results support the beneficial effects of almond consumption on serum concentration of IL-6; but even so, our study revealed that the almond consumption non-significantly reduced serum concentration of CRP. We still need more well-designed trials to confirm the beneficial effects of almond.
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Ji Y, Mao K, Gao J, Chitrakar B, Sadiq FA, Wang Z, Wu J, Xu C, Sang Y. Pear pomace soluble dietary fiber ameliorates the negative effects of high-fat diet in mice by regulating the gut microbiota and associated metabolites. Front Nutr 2022; 9:1025511. [PMID: 36337664 PMCID: PMC9633104 DOI: 10.3389/fnut.2022.1025511] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 09/21/2022] [Indexed: 07/30/2023] Open
Abstract
The gut microbiota and related metabolites are positively regulated by soluble dietary fiber (SDF). In this study, we explored the effects of SDF from pear pomace (PP) on the regulation of gut microbiota and metabolism in high-fat-diet-fed (HFD-fed) C57BL/6J male mice. The results showed that PP-SDF was able to maintain the HFD disrupted gut microbiota diversity with a significant increase in Lachnospiraceae_UCG-006, Akkermansia, and Bifidobacterium spp. The negative effects of high-fat diet were ameliorated by PP-SDF by regulating lipid metabolisms with a significant increase in metabolites like isobutyryl carnitine and dioscoretine. Correlation analysis revealed that gut microbiota, such as Akkermansia and Lachnospiraceae_UCG-006 in the PP-SDF intervention groups had strong positive correlations with isobutyryl carnitine and dioscoretin. These findings demonstrated that PP-SDF interfered with the host's gut microbiota and related metabolites to reduce the negative effects caused by a high-fat diet.
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Affiliation(s)
- Yuehong Ji
- College of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | - Kemin Mao
- College of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | - Jie Gao
- College of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | - Bimal Chitrakar
- College of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | - Faizan Ahmed Sadiq
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Technology and Food Sciences Unit, Melle, Belgium
| | - Zhongxuan Wang
- College of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | - Jiangna Wu
- College of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | - Chao Xu
- College of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | - Yaxin Sang
- College of Food Science and Technology, Hebei Agricultural University, Baoding, China
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Khedher A, Dhibi S, Bouzenna H, Akermi S, El Feki A, Teles PHV, Almeida JRGS, Hfaiedh N. Antiulcerogenic and antioxidant activities of Plantago ovata ethanolic extract in rats. BRAZ J BIOL 2022; 84:e255120. [PMID: 35293532 DOI: 10.1590/1519-6984.255120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 01/08/2022] [Indexed: 11/21/2022] Open
Abstract
This study aimed to determine the antiulcerogenic and antioxidant activities of Psyllium (Plantago ovata Forssk) seed ethanolic extract in rats. We assessed the antioxidant potential using free radical scavenging on DPPH, β-carotene bleaching activity, ferric reducing power, and hydroxyl radical scavenging activity. In the antiulcerogenic study, pre-treatment with Plantago ovata seeds ethanolic extract (POE) (400 mg/kg b.wt) significantly protected against ethanol-induced gastric ulcer in rats by decreasing the ulcer index value and preserving the integrity of the gastric mucosa. The oxidative stress status in the stomach tissues showed a significant increase in the antioxidant enzyme levels of superoxide dismutase, catalase, and glutathione peroxidase with a significant decrease in lipid peroxidation during pre-treatment with POE. In conclusion, the POE protects against gastric ulcer due to its antioxidant potential and presence of bioactive molecules.
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Affiliation(s)
- A Khedher
- University of Gafsa, Faculty of Sciences, Laboratory of Biotechnology and Biomonitoring of the Environment and Oasis Ecosystems - LBBEEO, Sidi Ahmed Zarrouk, Tunisia
| | - S Dhibi
- University of Gafsa, Faculty of Sciences, Laboratory of Biotechnology and Biomonitoring of the Environment and Oasis Ecosystems - LBBEEO, Sidi Ahmed Zarrouk, Tunisia
| | - H Bouzenna
- University of Gafsa, Faculty of Sciences, Laboratory of Biotechnology and Biomonitoring of the Environment and Oasis Ecosystems - LBBEEO, Sidi Ahmed Zarrouk, Tunisia
| | - S Akermi
- University of Gafsa, Faculty of Sciences, Laboratory of Biotechnology and Biomonitoring of the Environment and Oasis Ecosystems - LBBEEO, Sidi Ahmed Zarrouk, Tunisia
| | - A El Feki
- University of Gafsa, Faculty of Sciences, Laboratory of Biotechnology and Biomonitoring of the Environment and Oasis Ecosystems - LBBEEO, Sidi Ahmed Zarrouk, Tunisia
| | - P H V Teles
- Universidade Federal do Vale do São Francisco - UNIVASF, Center for Studies and Research of Medicinal Plants - NEPLAME, Petrolina, PE, Brasil
| | - J R G S Almeida
- Universidade Federal do Vale do São Francisco - UNIVASF, Center for Studies and Research of Medicinal Plants - NEPLAME, Petrolina, PE, Brasil
| | - N Hfaiedh
- University of Gafsa, Faculty of Sciences, Laboratory of Biotechnology and Biomonitoring of the Environment and Oasis Ecosystems - LBBEEO, Sidi Ahmed Zarrouk, Tunisia
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6
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Tang Q, Ma B, Zhao Y, Zhao L, Zhang Z, Gao H, Liu W, Li L, Chen Y, Xie L. Soluble Dietary Fiber Significance against Obesity in a Western China Population. JOURNAL OF HEALTHCARE ENGINEERING 2021; 2021:5754160. [PMID: 34676062 PMCID: PMC8526253 DOI: 10.1155/2021/5754160] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/30/2021] [Accepted: 09/24/2021] [Indexed: 12/11/2022]
Abstract
Objectives This study aimed to investigate whether soluble dietary fibers (SDFs) could protect against obesity by influencing weight, body mass index (BMI), body fat rate (BFR), visceral fat rate (VFR), or waistline. Methods We examined obese adult patients from western China at 0 and 3 weeks after an SDF diet. Index assessments of obesity including height, weight, BMI, BFR, VFR, and waistline were carried out. We used the Mann-Whitney U test to examine the difference between the usual diet and the SDF group. Results Weight, BMI, BFR, and waistline were reduced in both the control group and the SDF group (P < 0.001). The reduction of the four indices in the SDF group was significantly higher than in the control group (P < 0.001). Higher intake of various SDFs has significantly reduced the weight, BMI, BFR, and waistline than the usual diet group in obesity. Conclusion Our results indicated that increased intake of SDFs in the diet of obese patients would protect against obesity in the first 3 weeks.
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Affiliation(s)
- Qi Tang
- Department of Rehaibilitation Medicine, West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Bei Ma
- Department of Health Management, Sichuan Electric Power Hospital, Chengdu, China
| | - Yuli Zhao
- Department of Geriatrics, Affiliated Hospital of Traditional Chinese Medicine, Southwest Medical University, Luzhou, China
| | - Li Zhao
- Department of Health Policy and Management, West China School of Public Health/West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Zhenye Zhang
- Duhui Health (Chengdu) Medical Technology Co., Ltd., Chengdu, China
| | - Han Gao
- Duhui Health (Chengdu) Medical Technology Co., Ltd., Chengdu, China
| | - Wenjie Liu
- Duhui Health (Chengdu) Medical Technology Co., Ltd., Chengdu, China
| | - Linfeng Li
- Duhui Health (Chengdu) Medical Technology Co., Ltd., Chengdu, China
| | - Yi Chen
- Duhui Health (Chengdu) Medical Technology Co., Ltd., Chengdu, China
| | - Linlin Xie
- Classical Tcm Diagnosis and Treament Center, Affiliated Hospital of Traditional Chinese Medicine, Southwest Medical University, Luzhou, China
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7
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Eslick S, Thompson C, Berthon B, Wood L. Short-chain fatty acids as anti-inflammatory agents in overweight and obesity: a systematic review and meta-analysis. Nutr Rev 2021; 80:838-856. [PMID: 34472619 DOI: 10.1093/nutrit/nuab059] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
CONTEXT Short-chain fatty acids (SCFAs) derived from microbial fermentation of prebiotic soluble fibers are noted for their anti-inflammatory benefits against obese systemic inflammation. OBJECTIVE A systematic review and meta-analysis were undertaken to investigate the effect of SCFAs and prebiotic interventions on systemic inflammation in obesity. DATA SOURCES Relevant studies from 1947 to August 2019 were collected from the Cumulative Index to Nursing and Allied Health Literature, Embase, Medline, and Cochrane databases. Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines were followed. STUDY SELECTION Of 61 included studies, 29 were of humans and 32 of animals. DATA EXTRACTION Methodological quality of studies was assessed using the critical appraisal checklist of the Academy of Nutrition and Dietetics. Data pertaining to population, intervention type and duration, and markers of systemic inflammation were extracted from included studies. RESULTS Of 29 included human studies, 3 of 4 SCFA interventions and 11 of 25 prebiotic interventions resulted in a significant decrease in ≥1 biomarker of systemic inflammation. Of 32 included animal studies, 10 of 11 SCFA interventions and 18 of 21 prebiotic interventions resulted in a significant reduction of ≥1 biomarker of systemic inflammation. Meta-analysis revealed that prebiotics in humans reduced levels of plasma high-sensitivity C-reactive protein (standard mean difference [SMD], -0.83; 95%CI: -1.56 to -0.11; I2: 86%; P = 0.02) and plasma lipopolysaccharide (SMD, -1.20; 95%CI: -1.89 to -0.51; I2: 87%; P = 0.0006), and reduced TNF-α levels in animals (SMD, -0.63; 95%CI: -1.19 to -0.07; P = 0.03). Heterogeneity among supplement types, duration, and dose across studies was significant. CONCLUSION Evidence from this review and meta-analysis supports the use of SCFAs and prebiotics as novel aids in treatment of obese systemic inflammation. SYSTEMATIC REVIEW REGISTRATION PROSPERO registration no. CRD42020148529.
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Affiliation(s)
- Shaun Eslick
- Level 2, Hunter Medical Research Institute, University of Newcastle, Kookaburra Circuit, New Lambton Heights, New South Wales, Australia
| | - Cherry Thompson
- Level 2, Hunter Medical Research Institute, University of Newcastle, Kookaburra Circuit, New Lambton Heights, New South Wales, Australia
| | - Bronwyn Berthon
- Level 2, Hunter Medical Research Institute, University of Newcastle, Kookaburra Circuit, New Lambton Heights, New South Wales, Australia
| | - Lisa Wood
- Level 2, Hunter Medical Research Institute, University of Newcastle, Kookaburra Circuit, New Lambton Heights, New South Wales, Australia
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Hsiao YH, Wang YH, Lin WS, Cheng YC, Nagabhushanam K, Ho CT, Pan MH. Molecular Mechanisms of the Anti-obesity Properties of Agardhiella subulata in Mice Fed a High-Fat Diet. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:4745-4754. [PMID: 33848157 DOI: 10.1021/acs.jafc.1c01117] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The overweight and obese population has skyrocketed, resulting in a high incidence of metabolic disorders. Agardhiella subulata (AS) contains a variety of beneficial components, such as sulfur-containing polysaccharides (dietary fiber) and astaxanthin, which is considered to have anti-obesity potential. In this study, we investigated the effects and possible mechanisms of dietary AS on high-fat diet (HFD)-induced obesity in mice. AS supplementation significantly reduced HFD-induced weight gain (19%) and the visceral adiposity index (4.1%). In addition, the level of total cholesterol, triglyceride, and low-density lipoprotein was significantly decreased; adiponectin was significantly increased in serum and fecal triglyceride excretion was significantly higher in mice fed AS compared with mice on an HFD. Preadipocyte factor 1 and Sry-box transcription factor 9 that were significantly higher than the levels found for the HFD group lead to reduced adipogenesis. Moreover, accompanying the lipolysis and fatty acid β-oxidation that occur in the AS group, the concentration of non-esterified fatty acids was lowered to 0.4 ± 0.1 mEq/L. In addition, peroxisome proliferator-activated receptor γ and phosphorylation acetyl-CoA carboxylase increased 1.5- and 1-fold, thus increasing the expression of adiponectin and the activation of AMPK and ultimately resulting in lower blood glucose levels. The results of this study suggest that AS supplementation increases lipid excretion and improves energy metabolism to prevent obesity in mice fed a HFD.
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Affiliation(s)
- Yu-Hsuan Hsiao
- Institute of Food Sciences and Technology, National Taiwan University, Taipei 10617, Taiwan
| | - Yu-Hsin Wang
- Institute of Food Sciences and Technology, National Taiwan University, Taipei 10617, Taiwan
| | - Wei-Sheng Lin
- Institute of Food Sciences and Technology, National Taiwan University, Taipei 10617, Taiwan
| | - Yung-Chen Cheng
- Taoyuan Municipal Taoyuan Senior High School, Taoyuan City 330, Taiwan
| | | | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, New Jersey 08901, United States
| | - Min-Hsiung Pan
- Institute of Food Sciences and Technology, National Taiwan University, Taipei 10617, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan
- Department of Health and Nutrition Biotechnology, Asia University, Taichung 41354, Taiwan
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Ishwarya S P, R S, Nisha P. Advances and prospects in the food applications of pectin hydrogels. Crit Rev Food Sci Nutr 2021; 62:4393-4417. [PMID: 33511846 DOI: 10.1080/10408398.2021.1875394] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Pectin hydrogel is a soft hydrocolloid with multifaceted utilities in the food sector. Substantial knowledge acquired on the gelation mechanisms and structure-function relationship of pectin has led to interesting functions of pectin hydrogel. Food applications of pectin hydrogels can be categorized under four headings: food ingredients/additives, food packaging, bioactive delivery and health management. The cross-linked and tangly three-dimensional structure of pectin gel renders it an ideal choice of wall material for the encapsulation of biomolecules and living cells; as a fat replacer and texturizer. Likewise, pectin hydrogel is an effective satiety inducer due to its ability to swell under the simulated gastric and intestinal conditions without losing its gel structure. Coating or composites of pectin hydrogel with proteins and other polysaccharides augment its functionality as an encapsulant, satiety-inducer and food packaging material. Low-methoxyl pectin gel is an appropriate food ink for 3D printing applications due to its viscoelastic properties, adaptable microstructure and texture properties. This review aims at explaining all the applications of pectin hydrogels, as mentioned above. A comprehensive discussion is presented on the approaches by which pectin hydrogel can be transformed as a resourceful material by controlling its dimensions, state, and rheology. The final sections of this article emphasize the recent research trends in this discipline, such as the development of smart hydrogels, injectable gels, aerogels, xerogels and oleogels from pectin.
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Affiliation(s)
- Padma Ishwarya S
- Agro Processing and Technology Division, CSIR - National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram, Kerala, India
| | - Sandhya R
- Agro Processing and Technology Division, CSIR - National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram, Kerala, India
| | - P Nisha
- Agro Processing and Technology Division, CSIR - National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram, Kerala, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST Campus, Ghaziabad, Uttar Pradesh, India
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A combined healthy strategy for successful weight loss, weight maintenance and improvement of hepatic lipid metabolism. J Nutr Biochem 2020; 85:108456. [PMID: 32810797 DOI: 10.1016/j.jnutbio.2020.108456] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 06/06/2020] [Accepted: 06/15/2020] [Indexed: 02/06/2023]
Abstract
Obesity is critically related with the development of metabolic and pathophysiological alterations among which non-alcoholic fatty liver disease (NAFLD) is of especial relevance. Although there are numerous strategies to successfully treat obesity, the prevention of weight regain still remains challenging for individuals who have undergone weight loss programs. In such context, diet and physical activity are considered essential for the regulation of body weight and lipid metabolism. In this study, rats were fed a high-fat diet (HFD) to induce obesity and alterations in hepatic lipid metabolism. Obese rats were then treated with single or combined strategies of caloric restriction, physical exercise, and/or pharmacological treatment with an appetite suppressant, to lose weight, reverse the obesity-related alterations in hepatic morphology and lipid metabolism and maintain the beneficial effects of the interventions used. HFD induced excess body weight, hepatic steatosis, altered fatty acid profile, dysregulated gene expression of lipogenic and lipolytic enzymes, as well as plasma markers of liver damage, and modifications in liver antioxidant enzyme activity. Such alterations were ameliorated by caloric restriction in combination with a mixed training protocol and/or food-intake inhibitor administration during a weight loss intervention period of 3 weeks, and the beneficial effects remained after 6 weeks of weight maintenance, with some interesting interactions observed. In conclusion, weight loss strategies assayed were efficient at correcting the obesogenic action of a HFD and related alterations in hepatic functionality through different molecular mechanisms. The beneficial effects were also evident along the post-intervention maintenance period to avoid body weight regain.
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Ozato N, Saito S, Yamaguchi T, Katashima M, Tokuda I, Sawada K, Katsuragi Y, Kakuta M, Imoto S, Ihara K, Nakaji S. Association between breath methane concentration and visceral fat area: a population-based cross-sectional study. J Breath Res 2020; 14:026008. [PMID: 31835267 DOI: 10.1088/1752-7163/ab61c6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
High visceral fat area (VFA) is a stronger predictor of cardiovascular disease and overall mortality, compared with body mass index (BMI) and waist circumference (WC). Recent reports demonstrate that obesity is related to breath gas, which is produced by the intestinal microflora. However, these studies define obesity using BMI, not VFA. In this population-based cross-sectional study, we investigated the relationship between breath gases (methane and hydrogen) and both VFA and BMI. A total of 1033 participants (62% women; age [mean ± standard deviation] 54.4 ± 14.9 years) in the 2015 Iwaki Health Promotion Project in Japan were enrolled in the study. Breath samples were collected using a breath bag and analyzed by gas chromatography. VFA was measured using a visceral fat meter. The proportion of methanogenic bacteria to total intestinal microbiota was measured by polymerase chain reaction and 16S rRNA gene sequencing analysis. Our analysis revealed a significant association between high VFA and low breath methane, even after adjusting for confounding factors (B = -0.024 and P = 0.004). To identify the association between breath methane and VFA in participants with methane-producing bacteria in their intestinal microflora, participants were divided into two groups based on the presence or absence of methanogenic bacteria in their stool. The Methanogen + group was further divided into two subgroups with breath methane higher (Methane-UP) or lower (Methane-LO) than the median breath methane concentration. VFA was significantly lower in the Methane-UP group than in the Methane-LO group. In participants with methanogenic bacteria, breath methane concentration might be an independent biomarker of visceral fat accumulation.
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Affiliation(s)
- Naoki Ozato
- Department of Active Life Promotion Sciences, Graduate School of Medicine, Hirosaki University, Japan. Health Care Food Research Laboratories, Kao Corporation, Japan
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12
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Psyllium (Plantago ovata Forsk): From evidence of health benefits to its food application. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2019.12.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Antidiabetic Effects of Soluble Dietary Fiber from Steam Explosion-Modified Black Soybean Hull in Low-Dose Streptozotocin-Induced Type 2 Diabetic Mouses. J CHEM-NY 2019. [DOI: 10.1155/2019/6821438] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This paper studies the antidiabetic effects of soluble dietary fiber (SDF) from steam explosion-modified black soybean hull in low-dose streptozotocin- (STZ-) induced type 2 diabetic mouses. Male C57/BL6 mouses were divided into 4 groups: control (nondiabetic, no SDF intake), model (diabetes only), metformin (metformin: 100 mg/kg body weight), and SDF (SDF: 600 mg/kg body weight). Four weeks post-SDF treatment, treatment of SDF decreased the weight gain of diabetic mouses, normalised the blood glucose level, and reduced the serum cholesterol, serum insulin, leptin, glucagon-like peptide, total cholesterol, triglyceride, low-density lipoprotein cholesterol, arteriosclerosis index, aspartate aminotransferase activity, and malondialdehyde. It also increased high-density lipoprotein cholesterol, adiponectin, glycopeptide peroxidase, superoxide dismutase activity and repaired the pancreatic injury of the diabetic mouses. Our research results show that SDF has the potential for use in type 2 diabetes treatment.
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Yield and Physicochemical Properties of Soluble Dietary Fiber Extracted from Untreated and Steam Explosion-Treated Black Soybean Hull. J CHEM-NY 2019. [DOI: 10.1155/2019/9736479] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Black soybean hull was subjected to steam explosion (SE) treatment under different conditions to improve the yield and properties of soluble dietary fiber (SDF) extract. Optimal conditions for SE treatment were found to be moisture content of 15%, pressure level of 1.0 MPa, and treatment time of 80 s. Under these conditions, the yield of SDF increased from 10.20% to 17.49%. In addition, structural and functional properties of SDF from untreated and SE-treated black soybean hull were investigated. Soluble dietary fiber extracted from SE-treated hull exhibited lower molecular weight and improved functional properties, such as cholesterol-binding capacity, when compared to SDF extracted from untreated soybean hull. In addition, SDF extracted from SE-treated black soybean hull showed a rough surface structure, while a smooth surface structure was found for SDF extracted from the untreated hull. The obtained results indicate that SE treatment can be successfully used to enhance the yield and the property of yolk cholesterol absorption of SDF adsorption of yolk cholesterol functional properties of SDF from black soybean hull.
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Acute effects of non-homogenised and homogenised vegetables added to rice-based meals on postprandial glycaemic responses and in vitro carbohydrate digestion. Br J Nutr 2019; 120:1023-1033. [PMID: 30355395 DOI: 10.1017/s0007114518002489] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The addition of vegetable to carbohydrate-based meals was shown to contribute to glycaemic management. The aim of this study was to investigate the impact of homogenisation on vegetables added to rice meals in terms of acute glycaemic responses (GR). In a randomised crossover trial, sixteen healthy volunteers completed thirteen test sessions, which included two sessions for glucose control, two for rice and nine for different vegetable-rice mixed meals: cooked pak choi and cooked rice (CP+R); cooked cauliflower and cooked rice (CC+R); cooked eggplant and cooked rice (CE+R); and their homogenised counterparts, both raw or cooked. Postprandial GR tests, in vitro carbohydrate digestion and chemical analyses were carried out for each test meal. Compared with pure rice, CE+R, CP+R and CC+R meals achieved significantly lower glycaemic indexes (GI) of 67, 71 and 73, whereas their homogenised counterparts failed to show significant difference with rice. The hydrolysis indexes (HI) of CE+R, CP+R and CC+R were 69·6, 83·8 and 80·6 % of the HI of the rice control. CE had the greatest effect on lowering the GI, the incremental area under the blood glucose curve from 0 to 120 min, the peak glucose value, the maximum amplitude of glucose excursion in 0-120 min (MAGE0 -120), the HI and rapid available starch. Both in vitro and in vivo tests demonstrated that incorporating non-homogenised cooked vegetables into a rice meal could slow the carbohydrate digestion and improve postprandial GR. Texture properties of vegetable may play an important role in underlying glycaemic control mechanisms.
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Luo J, Qi J, Wang W, Luo Z, Liu L, Zhang G, Zhou Q, Liu J, Peng X. Antiobesity Effect of Flaxseed Polysaccharide via Inducing Satiety due to Leptin Resistance Removal and Promoting Lipid Metabolism through the AMP-Activated Protein Kinase (AMPK) Signaling Pathway. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:7040-7049. [PMID: 31199141 DOI: 10.1021/acs.jafc.9b02434] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Obesity is a metabolic syndrome worldwide that causes many chronic diseases. Recently, we found an antiobesity effect of flaxseed polysaccharide (FP), but the mechanism remains to be elucidated. In this study, rats were first induced to develop obesity by being fed a high-fat diet. The obese rats were then fed a control diet, AIN-93M (group HFD), or a 10% FP diet (group FPD). The body weight, body fat, adipose tissue and liver sections, serous total triglycerides, levels of fasting blood glucose in serum, serous insulin, inflammatory cytokines in serum, and serous proteins within the leptin-neuropeptide Y (NPY) and AMP-activated protein kinase (AMPK) signaling pathway were determined and analyzed. FP intervention significantly reduced body weight and abdominal fat from 530 ± 16 g and 2.15% ± 0.30% in group HFD to 478 ± 10 g and 1.38% ± 0.48% in group FPD, respectively. This effect was achieved by removing leptin resistance possibly by inhibiting inflammation and recovering satiety through the significant downregulation of NPY and the upregulation of glucagon-like peptide 1. Adiponectin was then significantly upregulated probably via the gut-brain axis and further activated the AMPK signaling pathway to improve lipid metabolism including the improvement of lipolysis and fatty acid oxidation and the suppression of lipogenesis. This is the first report of the proposed antiobesity mechanism of FP, thereby providing a comprehensive understanding of nonstarch polysaccharides and obesity.
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Affiliation(s)
- Jianming Luo
- Department of Food Science and Engineering , Jinan University , Guangzhou , 510632 Guangdong , China
| | - Jiamei Qi
- College of Life Science and Technology , Jinan University , Guangzhou , 510632 Guangdong , China
| | - Wenjun Wang
- The Center for Precision Medicine of First Affiliated Hospital, Biomedical Translational Research Institute, School of Pharmacy , Jinan University , Guangzhou , 510632 Guangdong , China
| | - Zhenhuan Luo
- The Center for Precision Medicine of First Affiliated Hospital, Biomedical Translational Research Institute, School of Pharmacy , Jinan University , Guangzhou , 510632 Guangdong , China
| | - Liu Liu
- Department of Food Science and Engineering , Jinan University , Guangzhou , 510632 Guangdong , China
| | - Guangwen Zhang
- Department of Food Science and Engineering , Jinan University , Guangzhou , 510632 Guangdong , China
| | - Qinghua Zhou
- The Center for Precision Medicine of First Affiliated Hospital, Biomedical Translational Research Institute, School of Pharmacy , Jinan University , Guangzhou , 510632 Guangdong , China
| | - Jiesheng Liu
- College of Life Science and Technology , Jinan University , Guangzhou , 510632 Guangdong , China
| | - Xichun Peng
- Department of Food Science and Engineering , Jinan University , Guangzhou , 510632 Guangdong , China
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Dekker RFH, Queiroz EAIF, Cunha MAA, Barbosa-Dekker AM. Botryosphaeran – A Fungal Exopolysaccharide of the (1→3)(1→6)-β-D-Glucan Kind: Structure and Biological Functions. BIOLOGICALLY-INSPIRED SYSTEMS 2019. [DOI: 10.1007/978-3-030-12919-4_11] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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18
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Silva AZ, Costa FP, Souza IL, Ribeiro MC, Giordani MA, Queiroz DA, Luvizotto RA, Nascimento AF, Bomfim GF, Sugizaki MM, Dekker RF, Barbosa-Dekker AM, Queiroz EA. Botryosphaeran reduces obesity, hepatic steatosis, dyslipidaemia, insulin resistance and glucose intolerance in diet-induced obese rats. Life Sci 2018; 211:147-156. [DOI: 10.1016/j.lfs.2018.09.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 09/06/2018] [Accepted: 09/14/2018] [Indexed: 01/11/2023]
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Martínez R, Kapravelou G, Donaire A, Lopez-Chaves C, Arrebola F, Galisteo M, Cantarero S, Aranda P, Porres JM, López-Jurado M. Effects of a combined intervention with a lentil protein hydrolysate and a mixed training protocol on the lipid metabolism and hepatic markers of NAFLD in Zucker rats. Food Funct 2018; 9:830-850. [PMID: 29364302 DOI: 10.1039/c7fo01790a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Metabolic syndrome is a cluster of metabolic alterations characterized by central obesity, dyslipidemia, elevated plasma glucose, insulin resistance (IR) and non-alcoholic fatty liver disease (NAFLD). In this study, a combined intervention of a lentil protein hydrolysate and a mixed training protocol was assessed in an animal experimental model of genetic obesity and metabolic syndrome. Thirty-two male obese and 32 lean Zucker rats were divided into eight different experimental groups. Rats performed a mixed exercise protocol or had a sedentary lifestyle and were administered a lentil protein hydrolysate or placebo. Daily food intake, weekly body weight gain, plasma parameters of glucose and lipid metabolisms, body composition, hepatic weight, total fat content and fatty acid profile, as well as gene expression of lipogenic and lipolytic nuclear transcription factors and their target genes were measured. Obese Zucker rats exhibited higher body and liver weight and fat content than did their lean counterparts. Such alterations were related to modifications in aerobic capacity, plasma biochemical parameters of glucose and lipid metabolisms, hepatic fatty acid profile and gene expression of nuclear transcription factors SREBP1c, PPARα, LXR and associated lipogenic and lipolytic enzymes. The interventions tested did not affect body weight gain but improved aerobic capacity, reduced hepatomegalia and steatosis associated with NAFLD and relieved the adverse effects produced by this condition in glucose and lipid metabolisms through the modulation in the expression of different genes involved in diverse metabolic pathways.
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Affiliation(s)
- Rosario Martínez
- Department of Physiology, Institute of Nutrition and Food Technology, Centre for Biomedical Research, Sport and Health Research Centre, University of Granada, Spain.
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Bray JK, Chiu GS, McNeil LK, Moon ML, Wall R, Towers AE, Freund GG. Switching from a high-fat cellulose diet to a high-fat pectin diet reverses certain obesity-related morbidities. Nutr Metab (Lond) 2018; 15:55. [PMID: 30093912 PMCID: PMC6080522 DOI: 10.1186/s12986-018-0294-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 07/25/2018] [Indexed: 12/19/2022] Open
Abstract
Background Reducing caloric intake is a proven intervention for mitigating and modulating morbidities associated with overnutrition. Caloric restriction is difficult to affect clinically, therefore, dietary interventions that ameliorate the adverse consequences of overnutrition in the presence of a high-calorie diet would be of value. Methods Mice were fed an obesogenic diet containing 60% fat + 10% cellulose (HFC), or a control diet containing 10% fat + 10% cellulose (LFC) for 12 wks. Subgroups of mice were then switched from HFC to each of the following diets for an additional 5 wks: 1) 60% fat + 10% pectin (HFP), 2) LFC or 3) 10% fat + 10% pectin (LFP). To test for statistical differences, one-way or two-way ANOVAs were used with or without repeated measurements as needed. Results In comparison to HFC, HFP prevented additional weight gain while LFC and LFP triggered weight loss of 22.2 and 25.4%, respectively. Mice continued on HFC experienced a weight increase of 26% during the same 5 wk. interval. After 12 wks, HFC decreased mouse locomotion by 18% when compared to control diet, but a diet switch to LFC or LFP restored mouse movement. Importantly, HFP, LFC, and LFP reduced fasting blood glucose when compared to HFC. Likewise, HFP, LFC and LFP improved glucose tolerance and decreased fatty liver by 37.9, 49.8, 53.6 and 20.2%, 37.2, 43.7%, respectively. Conclusions Taken together, the results indicate that the dietary fiber pectin can mitigate some adverse consequences of overnutrition even in the presence of high-fat.
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Affiliation(s)
- Julie K Bray
- 1Department of Pathology, Program in Integrative Immunology and Behavior, University of Illinois, Urbana, IL USA
| | - Gabriel S Chiu
- 1Department of Pathology, Program in Integrative Immunology and Behavior, University of Illinois, Urbana, IL USA.,2Division of Nutritional Sciences, University of Illinois, Urbana, IL USA
| | - Leslie K McNeil
- 1Department of Pathology, Program in Integrative Immunology and Behavior, University of Illinois, Urbana, IL USA
| | - Morgan L Moon
- 1Department of Pathology, Program in Integrative Immunology and Behavior, University of Illinois, Urbana, IL USA.,2Division of Nutritional Sciences, University of Illinois, Urbana, IL USA
| | - Robyn Wall
- 1Department of Pathology, Program in Integrative Immunology and Behavior, University of Illinois, Urbana, IL USA
| | - Albert E Towers
- 1Department of Pathology, Program in Integrative Immunology and Behavior, University of Illinois, Urbana, IL USA.,2Division of Nutritional Sciences, University of Illinois, Urbana, IL USA
| | - Gregory G Freund
- 1Department of Pathology, Program in Integrative Immunology and Behavior, University of Illinois, Urbana, IL USA.,2Division of Nutritional Sciences, University of Illinois, Urbana, IL USA.,3Department of Animal Sciences, University of Illinois, Urbana, IL USA.,4Department of Pathology, College of Medicine, University of Illinois at Urbana Champaign, 506 South Mathews Avenue, Urbana, IL 61801 USA
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21
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Does Dietary Fiber Affect the Levels of Nutritional Components after Feed Formulation? FIBERS 2018. [DOI: 10.3390/fib6020029] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Effects of nut consumption on selected inflammatory markers: a systematic review and meta-analysis of randomized controlled trials. Nutrition 2018; 54:129-143. [PMID: 29852452 DOI: 10.1016/j.nut.2018.02.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 01/12/2018] [Accepted: 02/04/2018] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Several randomized controlled trials (RCTs) have assessed the effects of nut consumption on inflammatory markers. However, the results have been inconsistent. The aim of this meta-analysis of RCTs was to quantitatively evaluate the effects of nut consumption on selected inflammatory markers. METHODS PubMed, Embase, Cochrane Library database, and Google Scholar were searched for published RCTs that reported the effects of nuts on inflammatory markers as primary or secondary outcomes in an adult population (aged ≥18 y). Summary estimates of weighted mean differences (WMDs) and 95% confidence intervals (CIs) were calculated using random-effects meta-analysis. RESULTS Twenty-three RCTs met the inclusion criteria. Overall, nut consumption significantly reduced the levels of intercellular adhesion molecule (ICAM)-1 (WMD, -0.17; 95% CI, -0.32 to -0.03; P = 0.01), but had no significant effect on other inflammatory markers. In the subgroup analyses by nut types, mixed nuts had a significant effect on ICAM-1 reduction. The significant effect of nuts on ICAM-1 reduction was only observed in parallel, but not crossover RCTs. Additionally, nut consumption significantly reduced ICAM-1 and vascular cell adhesion molecule-1 levels in long-term (≥12 wk), but not short-term (<12 wk) RCTs. No significant heterogeneity or publication bias was observed in the studies included. CONCLUSIONS Nut consumption significantly reduced ICAM-1 levels, but had no effect on other inflammatory markers. More studies are needed to assess the effects of nuts on inflammation.
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Awika JM, Rose DJ, Simsek S. Complementary effects of cereal and pulse polyphenols and dietary fiber on chronic inflammation and gut health. Food Funct 2018. [PMID: 29532826 DOI: 10.1039/c7fo02011b] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Cereal grains and grain pulses are primary staples often consumed together, and contribute a major portion of daily human calorie and protein intake globally. Protective effects of consuming whole grain cereals and grain pulses against various inflammation-related chronic diseases are well documented. However, potential benefits of combined intake of whole cereals and pulses beyond their complementary amino acid nutrition is rarely considered in literature. There is ample evidence that key bioactive components of whole grain cereals and pulses are structurally different and thus may be optimized to provide synergistic/complementary health benefits. Among the most important whole grain bioactive components are polyphenols and dietary fiber, not only because of their demonstrated biological function, but also their major impact on consumer choice of whole grain/pulse products. This review highlights the distinct structural differences between key cereal grain and pulse polyphenols and non-starch polysaccharides (dietary fiber), and the evidence on specific synergistic/complementary benefits of combining the bioactive components from the two commodities. Interactive effects of the polyphenols and fiber on gut microbiota and associated benefits to colon health, and against systemic inflammation, are discussed. Processing technologies that can be used to further enhance the interactive benefits of combined cereal-pulse bioactive compounds are highlighted.
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Affiliation(s)
- Joseph M Awika
- Cereal Quality Laboratory, Soil & Crop Science Department, Texas A&M University, College Station, Texas, USA. and Nutrition and Food Science Department, Texas A&M University, College Station, Texas, USA
| | - Devin J Rose
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA and Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Senay Simsek
- North Dakota State University, Department of Plant Sciences, Fargo, ND 58105, USA
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The Combined Intervention with Germinated Vigna radiata and Aerobic Interval Training Protocol Is an Effective Strategy for the Treatment of Non-Alcoholic Fatty Liver Disease (NAFLD) and Other Alterations Related to the Metabolic Syndrome in Zucker Rats. Nutrients 2017; 9:nu9070774. [PMID: 28753963 PMCID: PMC5537888 DOI: 10.3390/nu9070774] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 07/14/2017] [Accepted: 07/14/2017] [Indexed: 01/21/2023] Open
Abstract
Metabolic syndrome (MetS) is a group of related metabolic alterations that increase the risk of developing non-alcoholic fatty liver disease (NAFLD). Several lifestyle interventions based on dietary treatment with functional ingredients and physical activity are being studied as alternative or reinforcement treatments to the pharmacological ones actually in use. In the present experiment, the combined treatment with mung bean (Vigna radiata), a widely used legume with promising nutritional and health benefits that was included in the experimental diet as raw or 4 day-germinated seed flour, and aerobic interval training protocol (65–85% VO2 max) has been tested in lean and obese Zucker rats following a 2 × 2 × 2 (2 phenotypes, 2 dietary interventions, 2 lifestyles) factorial ANOVA (Analysis of Variance) statistical analysis. Germination of V. radiata over a period of four days originated a significant protein hydrolysis leading to the appearance of low molecular weight peptides. The combination of 4 day-germinated V. radiata and aerobic interval training was more efficient compared to raw V. radiata at improving the aerobic capacity and physical performance, hepatic histology and functionality, and plasma lipid parameters as well as reverting the insulin resistance characteristic of the obese Zucker rat model. In conclusion, the joint intervention with legume sprouts and aerobic interval training protocol is an efficient treatment to improve the alterations of glucose and lipid metabolism as well as hepatic histology and functionality related to the development of NAFLD and the MetS.
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Yang TH, Yao HT, Chiang MT. Red algae (Gelidium amansii) hot-water extract ameliorates lipid metabolism in hamsters fed a high-fat diet. J Food Drug Anal 2017; 25:931-938. [PMID: 28987370 PMCID: PMC9328878 DOI: 10.1016/j.jfda.2016.12.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 12/02/2016] [Accepted: 12/06/2016] [Indexed: 12/22/2022] Open
Abstract
The purpose of this study was to investigate the effects of Gelidium amansii (GA) hot-water extracts (GHE) on lipid metabolism in hamsters. Six-week-old male Syrian hamsters were used as the experimental animals. Hamsters were divided into four groups: (1) control diet group (CON); (2) high-fat diet group (HF); (3) HF with GHE diet group (HF + GHE); (4) HF with probucol diet group (HF + PO). All groups were fed the experimental diets and drinking water ad libitum for 6 weeks. The results showed that GHE significantly decreased body weight, liver weight, and adipose tissue (perirenal and paraepididymal) weight. The HF diet induced an increase in plasma triacylglycerol (TG), total cholesterol (TC), low-density lipoprotein cholesterol and very-low-density lipoprotein cholesterol levels. However, GHE supplementation reversed the increase of plasma lipids caused by the HF diet. In addition, GHE increased fecal cholesterol, TG and bile acid excretion. Lower hepatic TC and TG levels were found with GHE treatment. GHE reduced hepatic sterol regulatory element-binding proteins (SREBP) including SREBP 1 and SREBP 2 protein expressions. The phosphorylation of adenosine monophosphate (AMP)-activated protein kinase (AMPK) protein expression in hamsters was decreased by the HF diet; however, GHE supplementation increased the phosphorylation of AMPK protein expression. Our results suggest that GHE may ameliorate lipid metabolism in hamsters fed a HF diet.
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Affiliation(s)
- Tsung-Han Yang
- Department of Food Science, National Taiwan Ocean University, Keelung,
Taiwan, ROC
| | - Hsien-Tsung Yao
- Department of Nutrition, China Medical University, Taichung,
Taiwan, ROC
| | - Meng-Tsan Chiang
- Department of Food Science, National Taiwan Ocean University, Keelung,
Taiwan, ROC
- Corresponding author. Department of Food Science, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung, Taiwan, ROC. E-mail address: (M.-T. Chiang)
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Ma M, Mu T. Anti-diabetic effects of soluble and insoluble dietary fibre from deoiled cumin in low-dose streptozotocin and high glucose-fat diet-induced type 2 diabetic rats. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.05.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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Garcés-Rimón M, González C, Uranga JA, López-Miranda V, López-Fandiño R, Miguel M. Pepsin Egg White Hydrolysate Ameliorates Obesity-Related Oxidative Stress, Inflammation and Steatosis in Zucker Fatty Rats. PLoS One 2016; 11:e0151193. [PMID: 26985993 PMCID: PMC4795625 DOI: 10.1371/journal.pone.0151193] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 02/24/2016] [Indexed: 12/31/2022] Open
Abstract
The aim of this work was to evaluate the effect of the administration of egg white hydrolysates on obesity-related disorders, with a focus on lipid metabolism, inflammation and oxidative stress, in Zucker fatty rats. Obese Zucker rats received water, pepsin egg white hydrolysate (750 mg/kg/day) or Rhizopus aminopeptidase egg white hydrolysate (750 mg/kg/day) for 12 weeks. Lean Zucker rats received water. Body weight, solid and liquid intakes were weekly measured. At the end of the study, urine, faeces, different organs and blood samples were collected. The consumption of egg white hydrolysed with pepsin significantly decreased the epididymal adipose tissue, improved hepatic steatosis, and lowered plasmatic concentration of free fatty acids in the obese animals. It also decreased plasma levels of tumor necrosis factor-alpha and reduced oxidative stress. Pepsin egg white hydrolysate could be used as a tool to improve obesity-related complications.
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Affiliation(s)
- M. Garcés-Rimón
- Instituto de Investigación en Ciencias de Alimentación (CIAL, CSIC-UAM), Madrid, Spain
- * E-mail:
| | - C. González
- Departamento de Ciencias Básicas de la Salud, Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain
| | - J. A. Uranga
- Departamento de Ciencias Básicas de la Salud, Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain
| | - V. López-Miranda
- Departamento de Ciencias Básicas de la Salud, Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain
| | - R. López-Fandiño
- Instituto de Investigación en Ciencias de Alimentación (CIAL, CSIC-UAM), Madrid, Spain
| | - M. Miguel
- Instituto de Investigación en Ciencias de Alimentación (CIAL, CSIC-UAM), Madrid, Spain
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Sahagún AM, Vaquera J, García JJ, Calle ÁP, Diez MJ, Fernández N, Loro JF, Portilla HO, Sierra M. Study of the protective effect on intestinal mucosa of the hydrosoluble fiber Plantago ovata husk. Altern Ther Health Med 2015; 15:298. [PMID: 26318340 PMCID: PMC4553002 DOI: 10.1186/s12906-015-0827-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 08/25/2015] [Indexed: 12/16/2022]
Abstract
Background Several studies have indicated that dietary fiber may have a protective effect on gastrointestinal mucosa. The aim of this study was to evaluate the protective action of the soluble fiber Plantago ovata husk against intestinal damage. Methods To evaluate the anti-ulcerogenic effect on duodenal mucosa of the soluble fiber Plantago ovata husk, low-dose acetylsalicylic acid (10 mg/kg) was given orally to animals once daily for 14 or 28 days with and without Plantago ovata husk (100 mg/kg). 24 h after final dosing duodenal samples were removed for anatomopathological evaluation. Villi were examined by both light and scanning electron microscopy. Results Acetylsalicylic acid induced severe lesions in duodenal mucosa of rabbits, including erosions, epithelium disorganization, and cell vacuolization, increasing as well the amount of mononuclear and caliciform cells. Damage was much more severe in animals treated for 28 days. In groups receiving Plantago ovata husk, a significant attenuation of acetylsalicylic acid-induced lesions was already observed in group treated for 14 days, becoming more evident in those treated for 28 days, all of them with duodenal cytoarchitecture normal and similar to control animals. Conclusions These findings suggest that Plantago ovata husk may protect intestinal mucosa probably by limiting acetylsalicylic acid penetration into epithelial cells, although further studies are needed to confirm the same effect in other experimental models of induced mucosal damage and to elucidate the mechanisms of fiber protection.
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Kapravelou G, Martínez R, Andrade AM, Nebot E, Camiletti-Moirón D, Aparicio VA, Lopez-Jurado M, Aranda P, Arrebola F, Fernandez-Segura E, Bermano G, Goua M, Galisteo M, Porres JM. Aerobic interval exercise improves parameters of nonalcoholic fatty liver disease (NAFLD) and other alterations of metabolic syndrome in obese Zucker rats. Appl Physiol Nutr Metab 2015; 40:1242-52. [PMID: 26509584 DOI: 10.1139/apnm-2015-0141] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Metabolic syndrome (MS) is a group of metabolic alterations that increase the susceptibility to cardiovascular disease and type 2 diabetes. Nonalcoholic fatty liver disease has been described as the liver manifestation of MS. We aimed to test the beneficial effects of an aerobic interval training (AIT) protocol on different biochemical, microscopic, and functional liver alterations related to the MS in the experimental model of obese Zucker rat. Two groups of lean and obese animals (6 weeks old) followed a protocol of AIT (4 min at 65%-80% of maximal oxygen uptake, followed by 3 min at 50%-65% of maximal oxygen uptake for 45-60 min, 5 days/week, 8 weeks of experimental period), whereas 2 control groups remained sedentary. Obese rats had higher food intake and body weight (P < 0.0001) and suffered significant alterations in plasma lipid profile, area under the curve after oral glucose overload (P < 0.0001), liver histology and functionality, and antioxidant status. The AIT protocol reduced the severity of alterations related to glucose and lipid metabolism and increased the liver protein expression of PPARγ, as well as the gene expression of glutathione peroxidase 4 (P < 0.001). The training protocol also showed significant effects on the activity of hepatic antioxidant enzymes, although this action was greatly influenced by rat phenotype. The present data suggest that AIT protocol is a feasible strategy to improve some of the plasma and liver alterations featured by the MS.
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Affiliation(s)
- Garyfallia Kapravelou
- a Department of Physiology, Institute of Nutrition and Food Technology, Doctoral Program in Nutrition and Food Sciences, University of Granada, Campus Universitario de Cartuja s/n, Granada 18071, Spain
| | - Rosario Martínez
- a Department of Physiology, Institute of Nutrition and Food Technology, Doctoral Program in Nutrition and Food Sciences, University of Granada, Campus Universitario de Cartuja s/n, Granada 18071, Spain
| | - Ana M Andrade
- a Department of Physiology, Institute of Nutrition and Food Technology, Doctoral Program in Nutrition and Food Sciences, University of Granada, Campus Universitario de Cartuja s/n, Granada 18071, Spain
| | - Elena Nebot
- a Department of Physiology, Institute of Nutrition and Food Technology, Doctoral Program in Nutrition and Food Sciences, University of Granada, Campus Universitario de Cartuja s/n, Granada 18071, Spain
| | - Daniel Camiletti-Moirón
- a Department of Physiology, Institute of Nutrition and Food Technology, Doctoral Program in Nutrition and Food Sciences, University of Granada, Campus Universitario de Cartuja s/n, Granada 18071, Spain
| | - Virginia A Aparicio
- a Department of Physiology, Institute of Nutrition and Food Technology, Doctoral Program in Nutrition and Food Sciences, University of Granada, Campus Universitario de Cartuja s/n, Granada 18071, Spain
| | - Maria Lopez-Jurado
- a Department of Physiology, Institute of Nutrition and Food Technology, Doctoral Program in Nutrition and Food Sciences, University of Granada, Campus Universitario de Cartuja s/n, Granada 18071, Spain
| | - Pilar Aranda
- a Department of Physiology, Institute of Nutrition and Food Technology, Doctoral Program in Nutrition and Food Sciences, University of Granada, Campus Universitario de Cartuja s/n, Granada 18071, Spain
| | - Francisco Arrebola
- b Department of Histology, Institute of Neurosciences, University of Granada, Avenida de Madrid s/n, Granada 18071, Spain
| | - Eduardo Fernandez-Segura
- b Department of Histology, Institute of Neurosciences, University of Granada, Avenida de Madrid s/n, Granada 18071, Spain
| | - Giovanna Bermano
- c Institute for Health and Wellbeing Research, Robert Gordon University, Aberdeen AB10 7GJ, UK
| | - Marie Goua
- c Institute for Health and Wellbeing Research, Robert Gordon University, Aberdeen AB10 7GJ, UK
| | - Milagros Galisteo
- d Department of Pharmacology, School of Pharmacy, University of Granada, Campus Universitario de Cartuja s/n, Granada 18071, Spain
| | - Jesus M Porres
- a Department of Physiology, Institute of Nutrition and Food Technology, Doctoral Program in Nutrition and Food Sciences, University of Granada, Campus Universitario de Cartuja s/n, Granada 18071, Spain
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Caimari A, Puiggròs F, Suárez M, Crescenti A, Laos S, Ruiz JA, Alonso V, Moragas J, del Bas JM, Arola L. The intake of a hazelnut skin extract improves the plasma lipid profile and reduces the lithocholic/deoxycholic bile acid faecal ratio, a risk factor for colon cancer, in hamsters fed a high-fat diet. Food Chem 2015; 167:138-44. [DOI: 10.1016/j.foodchem.2014.06.072] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 04/30/2014] [Accepted: 06/16/2014] [Indexed: 11/15/2022]
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Romo-Vaquero M, Larrosa M, Yáñez-Gascón MJ, Issaly N, Flanagan J, Roller M, Tomás-Barberán FA, Espín JC, García-Conesa MT. A rosemary extract enriched in carnosic acid improves circulating adipocytokines and modulates key metabolic sensors in lean Zucker rats: Critical and contrasting differences in the obese genotype. Mol Nutr Food Res 2013; 58:942-53. [DOI: 10.1002/mnfr.201300524] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Revised: 10/02/2013] [Accepted: 10/03/2013] [Indexed: 12/12/2022]
Affiliation(s)
- María Romo-Vaquero
- Research Group on Quality; Safety, and Bioactivity of Plant Foods; Department of Food Science and Technology; CEBAS-CSIC; Murcia Spain
| | - Mar Larrosa
- Research Group on Quality; Safety, and Bioactivity of Plant Foods; Department of Food Science and Technology; CEBAS-CSIC; Murcia Spain
| | - María J. Yáñez-Gascón
- Research Group on Quality; Safety, and Bioactivity of Plant Foods; Department of Food Science and Technology; CEBAS-CSIC; Murcia Spain
| | | | | | | | - Francisco A. Tomás-Barberán
- Research Group on Quality; Safety, and Bioactivity of Plant Foods; Department of Food Science and Technology; CEBAS-CSIC; Murcia Spain
| | - Juan C. Espín
- Research Group on Quality; Safety, and Bioactivity of Plant Foods; Department of Food Science and Technology; CEBAS-CSIC; Murcia Spain
| | - María-Teresa García-Conesa
- Research Group on Quality; Safety, and Bioactivity of Plant Foods; Department of Food Science and Technology; CEBAS-CSIC; Murcia Spain
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Hartvigsen ML, Jeppesen PB, Lærke HN, Njabe EN, Knudsen KEB, Hermansen K. Concentrated arabinoxylan in wheat bread has beneficial effects as rye breads on glucose and changes in gene expressions in insulin-sensitive tissues of Zucker diabetic fatty (ZDF) rats. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:5054-5063. [PMID: 23656567 DOI: 10.1021/jf3043538] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The health-promoting effects of dietary fiber may vary with content, structure, and composition in the diet. The aim was to study how low-fiber wheat bread (WB), wheat bread supplemented with wheat arabinoxylan (AX) or oat β-glucan (BG), whole meal rye bread (RM), and rye bread with kernels (RK) affected central parameters of glucose and lipid metabolism and gene changes of Zucker diabetic fatty rats. Blood glucose response areas after an oral glucose tolerance test were significantly lower after AX (mean ± SEM; 2117 ± 170 mmol/L·180 min), RM (1978 ± 206 mmol/L·180 min), and RK (2234 ± 262 mmol/L·180 min) breads than after WB (3586 ± 100 mmol/L·180 min; p < 0.0001). AX, RK, and RM changed expressions of adipose GAPDH, AMPK, FAS, SREBP-1c, and hepatic PCG-1α, whereas BG had similar effects as WB. Thus, arabinoxylan added to wheat bread had beneficial effects on glycemic control as whole grain rye bread in this animal model.
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Hypolipidemic applications of microcrystalline cellulose composite synthesized from different agricultural residues. Int J Biol Macromol 2012; 51:1091-102. [DOI: 10.1016/j.ijbiomac.2012.08.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Revised: 07/22/2012] [Accepted: 08/02/2012] [Indexed: 02/02/2023]
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Kaczmarczyk MM, Miller MJ, Freund GG. The health benefits of dietary fiber: beyond the usual suspects of type 2 diabetes mellitus, cardiovascular disease and colon cancer. Metabolism 2012; 61:1058-66. [PMID: 22401879 PMCID: PMC3399949 DOI: 10.1016/j.metabol.2012.01.017] [Citation(s) in RCA: 311] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Revised: 01/17/2012] [Accepted: 01/18/2012] [Indexed: 12/17/2022]
Abstract
Dietary fiber (DF) is deemed to be a key component in healthy eating. DF is not a static collection of undigestible plant materials that pass untouched or unencumbered through the gastrointestinal (GI) tract; instead, DFs are a vast array of complex saccharide-based molecules that can bind potential nutrients and nutrient precursors to prevent their absorption. Some DFs are fermentable, and the GI tract catabolism leads to the generation of various bioactive materials, such as short-chain fatty acids (SCFAs), that can markedly augment the GI tract biomass and change the composition of the GI tract flora. The health benefits of DFs include the prevention and mitigation of type 2 diabetes mellitus, cardiovascular disease and colon cancer. By modulating food ingestion, digestion, absorption and metabolism, DFs reduce the risk of hyperlipidemia, hypercholesterolemia and hyperglycemia. Emerging research has begun to investigate the role of DFs in immunomodulation. If substantiated, DFs could facilitate many biologic processes, including infection prevention and the improvement of mood and memory. This review describes the accepted physiologic functions of DFs and explores their new potential immune-based actions.
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Affiliation(s)
| | - Michael J. Miller
- Division of Nutritional Sciences, University of Illinois, Urbana IL, USA
- Department of Food Science and Human Nutrition, University of Illinois, Urbana IL, USA
| | - Gregory G. Freund
- Division of Nutritional Sciences, University of Illinois, Urbana IL, USA
- Department of Pathology, Program in Integrative Immunology and Behavior, University of Illinois, Urbana IL, USA
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Abstract
Psyllium, a dietary fibre rich in soluble components, has both cholesterol- and TAG-lowering effects. Many studies have verified these actions using liver samples, whereas little information is available on the effects of psyllium treatment on other organs. The purpose of the present study was to evaluate the possible beneficial effects of psyllium. We investigated the gene expression profiles of both liver and skeletal muscle using DNA microarrays. C57BL/6J mice were fed a low-fat diet (LFD; 7 % fat), a high-fat diet (HFD; 40 % fat) or a HFD with psyllium (40 % fat+5 % psyllium; HFD+Psy) for 10 weeks. Body weights and food intake were measured weekly. After 10 weeks, the mice were killed and tissues were collected. Adipose tissues were weighed, and plasma total cholesterol and TAG blood glucose levels were measured. The expression levels of genes involved in glycolysis, gluconeogenesis, glucose transport and fatty acid metabolism were measured by DNA microarray in the liver and skeletal muscle. In the HFD+Psy group, plasma total cholesterol, TAG and blood glucose levels significantly decreased. There was a significant reduction in the relative weight of the epididymal and retroperitoneal fat tissue depots in mice fed the HFD+Psy. The expression levels of genes involved in fatty acid oxidation and lipid transport were significantly up-regulated in the skeletal muscle of the HFD+Psy group. This result suggests that psyllium stimulates lipid transport and fatty acid oxidation in the muscle. In conclusion, the present study demonstrates that psyllium can promote lipid consumption in the skeletal muscle; and this effect would create a slightly insufficient glucose state in the liver.
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Crescenti A, Solà R, Valls RM, Anguera A, Arola L. Polymorphisms in LEP and NPY genes modify the response to soluble fibre Plantago ovata husk intake on cardiovascular risk biomarkers. GENES AND NUTRITION 2012; 8:127-36. [PMID: 22669627 DOI: 10.1007/s12263-012-0303-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Accepted: 05/18/2012] [Indexed: 12/31/2022]
Abstract
The satiating effect of fibre consumption has been related to gut hormones, such as peptide YY and leptin. These peptides may also influence cardiovascular (CVD) risk biomarkers. Nevertheless, there is wide interindividual variation in metabolic responses to fibre consumption. The objective was to investigate differences in the effects of soluble fibre, in the form of Plantago ovata husk (Po-husk) treatment, on CVD risk biomarkers according to selected polymorphisms in genes related to satiety. The study was a multi-centred, double-blind, placebo-controlled, parallel and randomised trial in mild-moderate hypercholesterolaemic patients (age range: 43-67 years). Eight polymorphisms in three genes related to satiety (LEP, NPY and PYY) were identified in 178 participants; 88 patients in the placebo (microcrystalline cellulose 14 g/day) group and 90 in the Po-husk (14 g/day) group, which had added to a low-saturated-fat diet for 8 weeks. The CVD biomarkers measured included the following: lipid profile, blood pressure (BP), glucose, insulin, hs-CRP, oxidised LDL and IL-6. Relative to the placebo, Po-husk consumption lowered the plasma total cholesterol concentration by 3.3 % according to rs7799039 polymorphism in the LEP gene (p < 0.05). Furthermore, the Po-husk reduced systolic BP (mean [95 % CI]) by -8 mmHg (-14.16; -1.90) and hs-CRP by 24.9 % in subjects with the AA genotype of the rs16147 polymorphism in the NPY gene (32 % of our total population; p < 0.05), which remained significant after Bonferroni correction. In conclusion, polymorphisms in the LEP and NPY genes potentiate the response to Po-husk, particularly the effects on systolic BP and the hs-CRP plasma concentration.
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Affiliation(s)
- Anna Crescenti
- Departament de Bioquímica i Biotecnologia, Centre Tecnològic de Nutrició i Salut (CTNS), TECNIO, CEICS, Universitat Rovira i Virgili, Campus Sescelades. Marcel·lí Domingo, s/n, 43007, Tarragona, Spain
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Sánchez D, Miguel M, Aleixandre A. Dietary fiber, gut peptides, and adipocytokines. J Med Food 2011; 15:223-30. [PMID: 22181071 DOI: 10.1089/jmf.2011.0072] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
The consumption of dietary fiber (DF) has increased since it was related to the prevention of a range of illnesses and pathological conditions. DF can modify some gut hormones that regulate satiety and energy intake, thus also affecting lipid metabolism and energy expenditure. Among these gut hormones are ghrelin, glucagon-like peptide 1, peptide YY, and cholecystokinin. Adipose tissue is known to express and secrete a variety of products known as "adipocytokines," which are also affected by DF. Some of the most relevant adipocytokines include adiponectin, leptin, tumor necrosis factor-α, and interleukin-6. The release of adipocytokines, by either adipocytes or macrophage-infiltrated adipose tissue, leads to a chronic subinflammatory state that could play a central role in the development of insulin resistance and type 2 diabetes, therefore increasing the risk of cardiovascular disease associated with obesity. DF modulation of these molecules could also have positive effects on obesity, insulin resistance, and hyperlipidemia. This review is focused on the effects of DF on the above-mentioned gut peptides and adipocytokines.
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Affiliation(s)
- David Sánchez
- Department of Pharmacology, Faculty of Medicine, Complutense University, Madrid, Spain
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Beta glucan: health benefits in obesity and metabolic syndrome. J Nutr Metab 2011; 2012:851362. [PMID: 22187640 PMCID: PMC3236515 DOI: 10.1155/2012/851362] [Citation(s) in RCA: 206] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2011] [Accepted: 10/27/2011] [Indexed: 12/27/2022] Open
Abstract
Despite the lack of international agreement regarding the definition and classification of fiber, there is established evidence on the role of dietary fibers in obesity and metabolic syndrome. Beta glucan (β-glucan) is a soluble fiber readily available from oat and barley grains that has been gaining interest due to its multiple functional and bioactive properties. Its beneficial role in insulin resistance, dyslipidemia, hypertension, and obesity is being continuously documented. The fermentability of β-glucans and their ability to form highly viscous solutions in the human gut may constitute the basis of their health benefits. Consequently, the applicability of β-glucan as a food ingredient is being widely considered with the dual purposes of increasing the fiber content of food products and enhancing their health properties. Therefore, this paper explores the role of β-glucans in the prevention and treatment of characteristics of the metabolic syndrome, their underlying mechanisms of action, and their potential in food applications.
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Vermaak I, Viljoen AM, Hamman JH. Natural products in anti-obesity therapy. Nat Prod Rep 2011; 28:1493-533. [DOI: 10.1039/c1np00035g] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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