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Af Segerstad EMH, Ericson-Hallström E, Bokström A, Armeni M, Savolainen O, Andrén Aronsson C. Plasma Alkylresorcinols Is an Objective Biomarker for Gluten Intake in Young Children. J Nutr 2025; 155:985-993. [PMID: 39880171 PMCID: PMC11934242 DOI: 10.1016/j.tjnut.2025.01.020] [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: 11/27/2024] [Revised: 01/02/2025] [Accepted: 01/23/2025] [Indexed: 01/31/2025] Open
Abstract
BACKGROUND Alkylresorcinols are a well-established biomarker for whole-grain intake. There is evidence suggesting that total plasma alkylresorcinol concentration may also be used as a biomarker for gluten intake in adults. OBJECTIVES The aim of this study was to evaluate if total alkylresorcinol concentration is a valid biomarker for gluten intake in young children. METHODS Nonfasting plasma alkylresorcinol concentrations were analyzed by normal-phase ultrahigh-pressure liquid chromatography-tandem mass spectrometry in 65 children aged 18 mo included in a randomized controlled trial. The intervention group was following a gluten-free diet (n = 21, 31.3%), whereas the diet was unrestricted in the control group (n = 44, 65.7%). Alkylresorcinol concentrations in the 65 children were validated against simultaneously collected 3-d food records estimating total gluten intake. RESULTS Gluten intake in controls was median 5.8 grams/d (IQR: 2.8-9.4, max 17.1) compared with 0.0 g/d (IQR: 0.0-0.0, max 0.7, P < 0.001) in the intervention group. In the control group, wheat accounted for mean 85% (SD: 0.1) of the gluten intake. The intervention group had lower alkylresorcinol levels (median: 7.2 nmol/L; IQR: 4.0-10.5) compared with controls (median: 269; IQR: 116-505 nmol/L, P < 0.001). The correlation between alkylresorcinol concentrations and gluten intake was ρ = 0.68 (P < 0.001). Alkylresorcinol concentrations increased by 35.7% [95% confidence interval (CI): 25.9, 46.2, P < 0.001] for every g/d increase of gluten intake. The Cohen's weighted kappa between quartiles of alkylresorcinol and gluten intake was 0.73 (95% CI: 0.59, 0.86). CONCLUSIONS Alkylresorcinol concentrations increased with gluten intake in young nonfasting children. The findings suggest that alkylresorcinol concentrations may be a useful biomarker for gluten intake in young children. This trial was registered at clinicaltrials.gov as NCT03562221.
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Affiliation(s)
- Elin M Hård Af Segerstad
- Pediatric Research Institute, Oslo University Hospital, Oslo, Norway; Department of Clinical Sciences, Lund University, Malmö, Sweden; Department of Pediatrics, Skåne University Hospital, Malmö, Sweden
| | | | - Anna Bokström
- Department of Clinical Sciences, Lund University, Malmö, Sweden; Department of Pediatrics, Skåne University Hospital, Malmö, Sweden
| | - Marina Armeni
- Chalmers Mass Spectrometry Infrastructure, Department of Life Sciences, Chalmers University of Technology, Gothenburg, Sweden
| | - Otto Savolainen
- Chalmers Mass Spectrometry Infrastructure, Department of Life Sciences, Chalmers University of Technology, Gothenburg, Sweden; Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Carin Andrén Aronsson
- Department of Clinical Sciences, Lund University, Malmö, Sweden; Department of Pediatrics, Skåne University Hospital, Malmö, Sweden.
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Bråtveit M, Van Parys A, Olsen T, Strand E, Marienborg I, Laupsa-Borge J, Haugsgjerd TR, McCann A, Dhar I, Ueland PM, Dierkes J, Dankel SN, Nygård OK, Lysne V. Association between dietary macronutrient composition and plasma one-carbon metabolites and B-vitamin cofactors in patients with stable angina pectoris. Br J Nutr 2024; 131:1678-1690. [PMID: 38361451 PMCID: PMC11063666 DOI: 10.1017/s0007114524000473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 01/03/2024] [Accepted: 02/13/2024] [Indexed: 02/17/2024]
Abstract
Elevated plasma concentrations of several one-carbon metabolites are associated with increased CVD risk. Both diet-induced regulation and dietary content of one-carbon metabolites can influence circulating concentrations of these markers. We cross-sectionally analysed 1928 patients with suspected stable angina pectoris (geometric mean age 61), representing elevated CVD risk, to assess associations between dietary macronutrient composition (FFQ) and plasma one-carbon metabolites and related B-vitamin status markers (GC-MS/MS, LC-MS/MS or microbiological assay). Diet-metabolite associations were modelled on the continuous scale, adjusted for age, sex, BMI, smoking, alcohol and total energy intake. Average (geometric mean (95 % prediction interval)) intake was forty-nine (38, 63) energy percent (E%) from carbohydrate, thirty-one (22, 45) E% from fat and seventeen (12, 22) E% from protein. The strongest associations were seen for higher protein intake, i.e. with higher plasma pyridoxal 5'-phosphate (PLP) (% change (95 % CI) 3·1 (2·1, 4·1)), cobalamin (2·9 (2·1, 3·7)), riboflavin (2·4 (1·1, 3·7)) and folate (2·1 (1·2, 3·1)) and lower total homocysteine (tHcy) (-1·4 (-1·9, -0·9)) and methylmalonic acid (MMA) (-1·4 (-2·0, -0·8)). Substitution analyses replacing MUFA or PUFA with SFA demonstrated higher plasma concentrations of riboflavin (5·0 (0·9, 9·3) and 3·3 (1·1, 5·6)), tHcy (2·3 (0·7, 3·8) and 1·3 (0·5, 2·2)) and MMA (2·0 (0·2, 3·9) and 1·7 (0·7, 2·7)) and lower PLP (-2·5 (-5·3, 0·3) and -2·7 (-4·2, -1·2)). In conclusion, a higher protein intake and replacing saturated with MUFA and PUFA were associated with a more favourable metabolic phenotype regarding metabolites associated with CVD risk.
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Affiliation(s)
- Marianne Bråtveit
- Mohn Nutrition Research Laboratory, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Anthea Van Parys
- Centre for Nutrition, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Thomas Olsen
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Elin Strand
- Department of Immunology and Transfusion Medicine, Haukeland University Hospital, Bergen, Norway
| | - Ingvild Marienborg
- Centre for Nutrition, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Johnny Laupsa-Borge
- Centre for Nutrition, Department of Clinical Science, University of Bergen, Bergen, Norway
| | | | | | - Indu Dhar
- Mohn Nutrition Research Laboratory, Department of Clinical Science, University of Bergen, Bergen, Norway
- Centre for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | | | - Jutta Dierkes
- Mohn Nutrition Research Laboratory, Department of Clinical Science, University of Bergen, Bergen, Norway
- Centre for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway
- Laboratory Medicine and Pathology, Haukeland University Hospital, Bergen, Norway
| | - Simon Nitter Dankel
- Mohn Nutrition Research Laboratory, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Ottar Kjell Nygård
- Centre for Nutrition, Department of Clinical Science, University of Bergen, Bergen, Norway
- Laboratory Medicine and Pathology, Haukeland University Hospital, Bergen, Norway
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | - Vegard Lysne
- Centre for Nutrition, Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
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Ying T, Zheng J, Kan J, Li W, Xue K, Du J, Liu Y, He G. Effects of whole grains on glycemic control: a systematic review and dose-response meta-analysis of prospective cohort studies and randomized controlled trials. Nutr J 2024; 23:47. [PMID: 38664726 PMCID: PMC11044462 DOI: 10.1186/s12937-024-00952-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 04/16/2024] [Indexed: 04/29/2024] Open
Abstract
PURPOSE Whole grains have recently been promoted as beneficial to diabetes prevention. However, the evidence for the glycemic benefits of whole grains seems to conflict between the cohort studies and randomized control trials (RCTs). To fill the research gap, we conducted a meta-analysis to determine the effects of whole grains on diabetes prevention and to inform recommendations. METHODS We searched PubMed, Clarivate Web of Science, and Cochrane Library until March 2024. We used the risk ratio (RR) of type 2 diabetes to represent the clinical outcomes for cohort studies, while the biomarkers, including fasting blood glucose and insulin, HbA1C, and HOMA-IR, were utilized to show outcomes for RCTs. Dose-response relationships between whole grain intakes and outcomes were tested with random effects meta-regression models and restricted cubic splines models. This study is registered with PROSPERO, CRD42021281639. RESULTS Ten prospective cohort studies and 37 RCTs were included. Cohort studies suggested a 50 g/day whole grain intake reduced the risk of type 2 diabetes (RR = 0.761, 95% CI: 0.700 to 0.828, I2 = 72.39%, P < 0.001) and indicated a monotonic inverse relationship between whole grains and type 2 diabetes rate. In RCTs, whole grains significantly reduced fasting blood glucose (Mean difference (MD) = -0.103 mmol/L, 95% CI: -0.178 to -0.028; I2 = 72.99%, P < 0.01) and had modest effects on HbA1C (MD = -0.662 mmol/mol (-0.06%), 95% CI: -1.335 to 0.010; I2 = 64.55%, P = 0.05) and HOMA-IR (MD = -0.164, 95% CI: -0.342 to 0.013; I2 = 33.38%, P = 0.07). The intake of whole grains and FBG, HbA1C, and HOMA-IR were significantly dose-dependent. The restricted spline curves remained flat up to 150 g/day and decreased afterward. Subgroup analysis showed that interventions with multiple whole-grain types were more effective than those with a single type. CONCLUSION Our study findings suggest that a daily intake of more than 150 g of whole grain ingredients is recommended as a population approach for diabetes prevention.
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Affiliation(s)
- Tao Ying
- School of Public Health, Key Laboratory of Public Health Safety of the Ministry of Education, Fudan University, 130 Dong'an Road, Shanghai, 200032, China
| | | | - Juntao Kan
- Nutrilite Health Institute, Shanghai, China
| | - Wenyun Li
- School of Public Health, Key Laboratory of Public Health Safety of the Ministry of Education, Fudan University, 130 Dong'an Road, Shanghai, 200032, China
| | - Kun Xue
- School of Public Health, Key Laboratory of Public Health Safety of the Ministry of Education, Fudan University, 130 Dong'an Road, Shanghai, 200032, China
| | - Jun Du
- Nutrilite Health Institute, Shanghai, China
| | - Yuwei Liu
- School of Public Health, Key Laboratory of Public Health Safety of the Ministry of Education, Fudan University, 130 Dong'an Road, Shanghai, 200032, China.
| | - Gengsheng He
- School of Public Health, Key Laboratory of Public Health Safety of the Ministry of Education, Fudan University, 130 Dong'an Road, Shanghai, 200032, China.
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Alali RA, Alateeq SA, Almuhanna AF, Al Elq AH, Albaker WI, Habara A, Alrubaish FA, Vatte C, Loza BL, Al-Muhanna FA, Al-Ali AK. Dietary assessment of type 2 diabetic patients using healthful plant-based diet score in the Eastern Province of Saudi Arabia. BMC Nutr 2024; 10:37. [PMID: 38419128 PMCID: PMC10900584 DOI: 10.1186/s40795-024-00843-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 02/15/2024] [Indexed: 03/02/2024] Open
Abstract
BACKGROUND Diabetes mellitus is a chronic disease characterized by a wide range of metabolic problems. The current study sought to assess nutritional habits of Saudi patients with type 2 diabetes (T2D) and to propose recommendations to improve these patients' dietary habits and delay possible disease complications. METHODS Over a period of three years, (2017-2019) 577 patients with T2D attending the outpatient's diabetic clinics at King Fahd Hospital of the University, Al Khobar, Saudi Arabia were invited to participate in this study. Data of dietary intake were collected by trained nurses using a pretested structured validated semi quantitative food frequency questionnaire. The dietary data were collected using 7-day dietary recall questionnaire. A modified score system that associates dietary habits with glycemic control and lipid profile was used. RESULTS Overall, a high healthful plant-based diet score was associated with a significant (P = 0.018) reduction in triglycerides (TG) level (mean difference - 3.78%; 95% CI, -0.65% to -6.81%) and a statistically non-significant (P = 0.06) increase in high density lipoprotein (HDL) levels (mean difference 1.87%; 95% CI -0.06-3.84%) in T2D patients from the Eastern Province of Saudi Arabia. Additionally, in our patient group, the prevalence of coronary artery disease, stroke, peripheral artery disease, and chronic kidney disease in T2D patients was 11.3%, 6.2%, 3.3%, and 8.4%, respectively and were higher when compared to the prevalence in the general population. CONCLUSION The present study showed that adherence to a healthful plant-based diet, when compared to high glycemic index diet, is associated with a favorable outcome in glycemic control and lipid profile in T2D patients. Prior assessment of total diet quality may be beneficial when giving nutritional advice to T2D patients with the possibility of improving glycemic control and lipid profile.
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Grants
- 001 Rawabi Scientific Chair for Social Responsibility, Imam Abdulrahman Bin Faisal University
- 001 Rawabi Scientific Chair for Social Responsibility, Imam Abdulrahman Bin Faisal University
- 001 Rawabi Scientific Chair for Social Responsibility, Imam Abdulrahman Bin Faisal University
- 001 Rawabi Scientific Chair for Social Responsibility, Imam Abdulrahman Bin Faisal University
- 001 Rawabi Scientific Chair for Social Responsibility, Imam Abdulrahman Bin Faisal University
- 001 Rawabi Scientific Chair for Social Responsibility, Imam Abdulrahman Bin Faisal University
- 001 Rawabi Scientific Chair for Social Responsibility, Imam Abdulrahman Bin Faisal University
- 001 Rawabi Scientific Chair for Social Responsibility, Imam Abdulrahman Bin Faisal University
- 001 Rawabi Scientific Chair for Social Responsibility, Imam Abdulrahman Bin Faisal University
- 001 Rawabi Scientific Chair for Social Responsibility, Imam Abdulrahman Bin Faisal University
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Affiliation(s)
- Rudaynah A Alali
- Department of Internal Medicine, King Fahad Hospital of the University, Al Khobar, Saudi Arabia
- Imam Abdulrahman Bin Faisal University, 31441, Dammam, Saudi Arabia
| | - Suad A Alateeq
- Department of Clinical Biochemistry College of Medicine, Imam Abdulrahman Bin Faisal University, 31441, Dammam, Saudi Arabia
| | - Afnan F Almuhanna
- Department of Radiology, King Fahad Hospital of the University, Al Khobar, Saudi Arabia
| | - Abdulmohsen H Al Elq
- Department of Internal Medicine, King Fahad Hospital of the University, Al Khobar, Saudi Arabia
- Imam Abdulrahman Bin Faisal University, 31441, Dammam, Saudi Arabia
| | - Waleed I Albaker
- Department of Internal Medicine, King Fahad Hospital of the University, Al Khobar, Saudi Arabia
- Imam Abdulrahman Bin Faisal University, 31441, Dammam, Saudi Arabia
| | - Alawi Habara
- Department of Clinical Biochemistry College of Medicine, Imam Abdulrahman Bin Faisal University, 31441, Dammam, Saudi Arabia
| | - Fatima A Alrubaish
- Department of Internal Medicine, King Fahad Hospital of the University, Al Khobar, Saudi Arabia
- Imam Abdulrahman Bin Faisal University, 31441, Dammam, Saudi Arabia
| | - Chittibabu Vatte
- Department of Clinical Biochemistry College of Medicine, Imam Abdulrahman Bin Faisal University, 31441, Dammam, Saudi Arabia
| | - Bao-Li Loza
- Department of Surgery, Perelman School of Medicine, University of Pennsylvania, 19104, Pennsylvania, PA, USA
| | - Fahad A Al-Muhanna
- Department of Internal Medicine, King Fahad Hospital of the University, Al Khobar, Saudi Arabia
- Imam Abdulrahman Bin Faisal University, 31441, Dammam, Saudi Arabia
| | - Amein K Al-Ali
- Department of Clinical Biochemistry College of Medicine, Imam Abdulrahman Bin Faisal University, 31441, Dammam, Saudi Arabia.
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Ross AB, Shertukde SP, Livingston Staffier K, Chung M, Jacques PF, McKeown NM. The Relationship between Whole-Grain Intake and Measures of Cognitive Decline, Mood, and Anxiety-A Systematic Review. Adv Nutr 2023; 14:652-670. [PMID: 37085091 PMCID: PMC10334137 DOI: 10.1016/j.advnut.2023.04.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 03/15/2023] [Accepted: 04/07/2023] [Indexed: 04/23/2023] Open
Abstract
Greater intake of whole grains, compared to refined grains, is consistently associated with a reduced risk of cardiovascular disease and type 2 diabetes, both of which are associated with cognitive decline. To better understand the relationship between whole-grain intake, cognition, mood, and anxiety, a systematic review was conducted to synthesize available evidence linking whole grains to these outcomes. Four electronic databases were searched from inception to August 2021 for potentially relevant observational and interventional studies. Risk of bias (RoB) assessments were performed using the newly developed Nutrition Quality Evaluation Strengthening Tools, and the Grades of Recommendation, Assessment, Development, and Evaluation approach was used to determine the strength of evidence for each outcome. In total, 23 studies [4 randomized controlled trials (RCTs) and 19 observational studies] met the predefined eligibility criteria. Of these,12 studies included analysis of whole-grain intake and cognitive decline, 9 included mood outcomes, and 2 included both cognition and mood outcomes. The overall evidence for an association between whole-grain intake and cognition is inconclusive. With respect to mood outcomes, evidence from RCTs prospective cohort and case-control studies suggest that higher intake is linked to improved outcomes for mood and depression although the evidence is mixed for cross-sectional studies. Reporting of whole-grain intake fell short of suggested standards, and the strength of available evidence was low or very low for all outcomes. A high RoB toward studies reporting results was also noted, complicating both the interpretation of some studies and the combined evidence. Of note, few well-designed RCTs assessing the effect of whole-grain intake on measures of cognition, mood, and anxiety were identified, highlighting the need for more studies in this area. The available, although limited, evidence suggests that greater whole-grain intake is associated with better mood and anxiety-related scores and is inconclusive regarding cognitive outcomes. PROSPERO registration: CRD42021266355.
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Affiliation(s)
| | - Shruti P Shertukde
- Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, United States
| | - Kara Livingston Staffier
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Mei Chung
- Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, United States
| | - Paul F Jacques
- Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, United States; Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Nicola M McKeown
- Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, United States; Programs of Nutrition, Department of Health Sciences, Sargent College of Health and Rehabilitation Sciences, Boston University, Boston, MA, United States
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Zhou H, Liu K, Liu W, Wu M, Wang Y, Lv Y, Meng H. Diets Enriched in Sugar, Refined, or Whole Grain Differentially Influence Plasma Cholesterol Concentrations and Cholesterol Metabolism Pathways with Concurrent Changes in Bile Acid Profile and Gut Microbiota Composition in ApoE -/- Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37307383 DOI: 10.1021/acs.jafc.3c00810] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
This study aimed to compare the effects of diets enriched in sugar, refined grain (RG), or whole grain (WG) on circulating cholesterol concentrations and established and emerging mechanisms regulating cholesterol metabolism. Forty-four male ApoE-/- mice aged 8 weeks were randomly fed an isocaloric sugar-, RG-, or WG-enriched diet for 12 weeks. Compared to WG-enriched diet, fasting plasma LDL-C and HDL-C concentrations were higher and the mRNA expression of intestinal LXR-α was lower in sugar- and RG-enriched diets; plasma TC, non-HDL-C, TG and VLDL-C concentrations, and cecal concentrations of lithocholic acid were higher and the mRNA expression of intestinal ABCG5 was lower in sugar-enriched diet, and the mRNA expression of hepatic IDOL and cecal concentrations of lithocholic and deoxycholic acids was higher in RG-enriched diet. The relative abundance of Akkermansia, Clostridia_UCG-014, Alistipes, and Alloprevotella, which were lower in sugar- and/or RG- than in WG-enriched diet, had inverse correlations with fasting plasma cholesterol concentrations or cecal concentrations of secondary bile acids and positive correlations with gene expressions in intestinal cholesterol efflux. Conversely, the relative abundance of Lactobacillus, Lachnoclostridium, Lachnospiraceae_NK4A136_group, Colidextribacter, and Helicobacter had reverse correlations. Both sugar- and RG-enriched diets had unfavorable effects on cholesterol concentrations; yet, their effects on the gene expressions of cholesterol efflux, uptake, bile acid synthesis, and bile acid concentrations were distinctive and could be partially attributable to the concurrent changes in gut microbiota.
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Affiliation(s)
- Haiyan Zhou
- School of Public Health (Shenzhen), Sun Yat-sen University, No. 66, Gongchang Road, Guangming District, Shenzhen 518107, Guangdong, P. R. China
| | - Ke Liu
- School of Public Health (Shenzhen), Sun Yat-sen University, No. 66, Gongchang Road, Guangming District, Shenzhen 518107, Guangdong, P. R. China
| | - Wenjing Liu
- School of Public Health (Shenzhen), Sun Yat-sen University, No. 66, Gongchang Road, Guangming District, Shenzhen 518107, Guangdong, P. R. China
| | - Man Wu
- School of Public Health (Shenzhen), Sun Yat-sen University, No. 66, Gongchang Road, Guangming District, Shenzhen 518107, Guangdong, P. R. China
| | - Yin Wang
- School of Public Health (Shenzhen), Sun Yat-sen University, No. 66, Gongchang Road, Guangming District, Shenzhen 518107, Guangdong, P. R. China
| | - Yiqian Lv
- School of Public Health (Shenzhen), Sun Yat-sen University, No. 66, Gongchang Road, Guangming District, Shenzhen 518107, Guangdong, P. R. China
| | - Huicui Meng
- School of Public Health (Shenzhen), Sun Yat-sen University, No. 66, Gongchang Road, Guangming District, Shenzhen 518107, Guangdong, P. R. China
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangzhou 510080, Guangdong, P. R. China
- Guangdong Province Engineering Laboratory for Nutrition Translation, Guangzhou 510080, Guangdong, P. R. China
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Hesselink A, Winkvist A, Lindahl B, Ueland PM, Schneede J, Johansson I, Karlsson T. Healthy Nordic diet and associations with plasma concentrations of metabolites in the choline oxidation pathway: a cross-sectional study from Northern Sweden. Nutr J 2023; 22:26. [PMID: 37198607 DOI: 10.1186/s12937-023-00853-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 05/10/2023] [Indexed: 05/19/2023] Open
Abstract
BACKGROUND The choline oxidation pathway and metabolites involved have been linked to diseases including cardiovascular disease, type 2 diabetes and cancer. A healthy Nordic diet is a recently defined dietary pattern associated with decreased risk for these diseases. Our aim was to explore associations between adherence to a healthy Nordic diet and plasma concentrations of metabolites of the choline oxidation pathway. METHODS The Healthy Nordic Food Index (HNFI) and Baltic Sea Diet Score (BSDS) were applied to cross-sectional data (n = 969) from the Västerbotten Intervention Programme in Northern Sweden to score adherence to a healthy Nordic diet. Data included responses to a dietary questionnaire and blood sample analyses (1991-2008). Associations of diet scores with plasma concentrations of metabolites of the choline oxidation pathway and total homocysteine (tHcy), seven metabolites in total, were evaluated with linear regression, adjusting for age, BMI, education and physical activity. RESULTS HNFI scores showed linear relationships with plasma choline (β = 0.11), betaine (β = 0.46), serine (β = 0.98) and tHcy (β = - 0.38), and BSDS scores with betaine (β = 0.13) and tHcy (β = - 0.13); unstandardized beta coefficients, all significant at P < 0.05. The regression models predicted changes in plasma metabolite concentrations (± 1 SD changes in diet score) in the range of 1-5% for choline, betaine, serine and tHcy. No other statistically significant associations were observed. CONCLUSIONS A healthy Nordic diet was associated with plasma concentrations of several metabolites of the choline oxidation pathway. Although relationships were statistically significant, effect sizes were moderate. Further research is warranted to explore the underlying mechanisms and associations with health outcomes.
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Affiliation(s)
- André Hesselink
- Department of Internal Medicine and Clinical Nutrition, University of Gothenburg, Box 459, 405 30, Gothenburg, Sweden
| | - Anna Winkvist
- Department of Internal Medicine and Clinical Nutrition, University of Gothenburg, Box 459, 405 30, Gothenburg, Sweden
- Department of Public Health and Clinical Medicine, Sustainable Health, Umeå University, Umeå, Sweden
| | - Bernt Lindahl
- Department of Public Health and Clinical Medicine, Sustainable Health, Umeå University, Umeå, Sweden
| | - Per M Ueland
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Bevital AS, Bergen, Norway
| | - Jörn Schneede
- Department of Clinical Pharmacology, Pharmacology and Clinical Neurosciences, Umeå University, Umeå, Sweden
| | | | - Therese Karlsson
- Department of Internal Medicine and Clinical Nutrition, University of Gothenburg, Box 459, 405 30, Gothenburg, Sweden.
- Department of Life Sciences, Chalmers University of Technology, Gothenburg, Sweden.
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Assessment of Oxidant and Antioxidant Status in Prepubertal Children following Vegetarian and Omnivorous Diets. Antioxidants (Basel) 2023; 12:antiox12030682. [PMID: 36978931 PMCID: PMC10044729 DOI: 10.3390/antiox12030682] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/28/2023] [Accepted: 03/08/2023] [Indexed: 03/12/2023] Open
Abstract
Oxidant-antioxidant balance is crucial for maintaining one’s health, and the diet is possibly one of the most important factors affecting this balance. Therefore, the aim of this study was to determine the oxidant-antioxidant balance in children on a lacto-ovo-vegetarian diet. The study was conducted between January 2020 and December 2021. The concentrations of total oxidant capacity (TOC), total antioxidant capacity (TAC), reduced (GSH), and oxidized (GSSG) glutathione, as well as C-reactive protein (CRP) and calprotectin were measured in serum samples of 72 healthy prepubertal children (32 vegetarians and 40 omnivores). The oxidative stress index (OSI) and the GSH/GSSG ratio (R-index) were calculated. Children on a vegetarian diet had significantly lower median values of TOC, GSH, and GSSG, and higher TAC compared with the omnivores. OSI was significantly lower in vegetarians, while R-index, as well as median values of CRP and calprotectin did not differ between both groups of children. Significant negative correlations were observed between TOC and TAC levels in the whole group of children and in vegetarians. GSH and GSSG levels correlated positively in the groups of vegetarians, omnivores, and in all the children. There were significant positive correlations between TOC and GSH, as well as GSSG levels in all the studied groups of children. Our study results suggest that the vegetarian model of nutrition allows to maintain the oxidant-antioxidant balance in the serum of prepubertal children.
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Noerman S, Virtanen JK, Lehtonen M, Brunius C, Hanhineva K. Serum metabolites associated with wholegrain consumption using nontargeted metabolic profiling: a discovery and reproducibility study. Eur J Nutr 2023; 62:713-726. [PMID: 36198920 PMCID: PMC9941277 DOI: 10.1007/s00394-022-03010-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 09/21/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE To identify fasting serum metabolites associated with WG intake in a free-living population adjusted for potential confounders. METHODS We selected fasting serum samples at baseline from a subset (n = 364) of the prospective population-based Kuopio Ischaemic Heart Disease Risk Factor Study (KIHD) cohort. The samples were analyzed using nontargeted metabolomics with liquid chromatography coupled with mass spectrometry (LC-MS). Association with WG intake was investigated using both random forest followed by linear regression adjusted for age, BMI, smoking, physical activity, energy and alcohol consumption, and partial Spearman correlation adjusted for the same covariates. Features selected by any of these models were shortlisted for annotation. We then checked if we could replicate the findings in an independent subset from the same cohort (n = 200). RESULTS Direct associations were observed between WG intake and pipecolic acid betaine, tetradecanedioic acid, four glucuronidated alkylresorcinols (ARs), and an unknown metabolite both in discovery and replication cohorts. The associations remained significant (FDR<0.05) even after adjustment for the confounders in both cohorts. Sinapyl alcohol was positively correlated with WG intake in both cohorts after adjustment for the confounders but not in linear models in the replication cohort. Some microbial metabolites, such as indolepropionic acid, were positively correlated with WG intake in the discovery cohort, but the correlations were not replicated in the replication cohort. CONCLUSIONS The identified associations between WG intake and the seven metabolites after adjusting for confounders in both discovery and replication cohorts suggest the potential of these metabolites as robust biomarkers of WG consumption.
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Affiliation(s)
- Stefania Noerman
- Division of Food and Nutrition Science, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden. .,Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland.
| | - Jyrki K. Virtanen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Marko Lehtonen
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland
| | - Carl Brunius
- Present Address: Division of Food and Nutrition Science, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Kati Hanhineva
- Department of Life Technologies, Food Chemistry and Food Development Unit, University of Turku, Turku, Finland. .,Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland.
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10
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Shtossel O, Isakov H, Turjeman S, Koren O, Louzoun Y. Ordering taxa in image convolution networks improves microbiome-based machine learning accuracy. Gut Microbes 2023; 15:2224474. [PMID: 37345233 PMCID: PMC10288916 DOI: 10.1080/19490976.2023.2224474] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 06/08/2023] [Indexed: 06/23/2023] Open
Abstract
The human gut microbiome is associated with a large number of disease etiologies. As such, it is a natural candidate for machine-learning-based biomarker development for multiple diseases and conditions. The microbiome is often analyzed using 16S rRNA gene sequencing or shotgun metagenomics. However, several properties of microbial sequence-based studies hinder machine learning (ML), including non-uniform representation, a small number of samples compared with the dimension of each sample, and sparsity of the data, with the majority of taxa present in a small subset of samples. We show here using a graph representation that the cladogram structure is as informative as the taxa frequency. We then suggest a novel method to combine information from different taxa and improve data representation for ML using microbial taxonomy. iMic (image microbiome) translates the microbiome to images through an iterative ordering scheme, and applies convolutional neural networks to the resulting image. We show that iMic has a higher precision in static microbiome gene sequence-based ML than state-of-the-art methods. iMic also facilitates the interpretation of the classifiers through an explainable artificial intelligence (AI) algorithm to iMic to detect taxa relevant to each condition. iMic is then extended to dynamic microbiome samples by translating them to movies.
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Affiliation(s)
- Oshrit Shtossel
- Department of Mathematics, Bar-Ilan University, Ramat Gan, Israel
| | - Haim Isakov
- Department of Mathematics, Bar-Ilan University, Ramat Gan, Israel
| | - Sondra Turjeman
- The Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Omry Koren
- The Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Yoram Louzoun
- Department of Mathematics, Bar-Ilan University, Ramat Gan, Israel
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11
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Impact of Daily Consumption of Whole-Grain Quinoa-Enriched Bread on Gut Microbiome in Males. Nutrients 2022; 14:nu14224888. [PMID: 36432574 PMCID: PMC9698549 DOI: 10.3390/nu14224888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/10/2022] [Accepted: 11/14/2022] [Indexed: 11/22/2022] Open
Abstract
Diets rich in whole grains are associated with improved health and a lower risk of non-communicable diseases, but the mechanisms through which these health benefits are conveyed are uncertain. One mechanism may be improvements in the gut environment by the delivery of fermentable substrates and associated phytochemicals to the lower gut and modification of the gut microbiome. Quinoa is included in the whole-grain category because of its structural similarities to cereals but the effects of its consumption on the gut microbiome have not been investigated to date. Our aim was to examine the impact of daily quinoa consumption on the gut microbiome in a 4-week randomised cross-over intervention separated by a 4-week wash-out period involving 28 adult males. Participants consumed either a quinoa-enriched wheat-bread roll providing 20 g quinoa flour each day, or a control wheat-only bread roll. Stool samples were collected in sterile collection tubes immediately before and at the end of each intervention period. DNA was then extracted, and the 16S rRNA V4 region of extracted DNA was amplified and sequenced. For both the control and quinoa bread periods, there were no changes at the phyla or genus level between baseline and week 4 (all p > 0.05). Diversity in the microbiome profile was not different from baseline after either intervention arms. The results show that small changes in the type of cereal consumed—substituting 20 g of refined wheat flour with whole-grain quinoa flour—was not able to significantly modulate the gut microbiome. Further studies with higher levels of quinoa or longer exposure periods are needed to ascertain if there is a dose−response effect of quinoa, and if these effects are able to translate into clinical outcomes.
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12
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Dietary Betaine Interacts with Very Long Chain n-3 Polyunsaturated Fatty Acids to Influence Fat Metabolism and Circulating Single Carbon Status in the Cat. Animals (Basel) 2022; 12:ani12202837. [PMID: 36290222 PMCID: PMC9597741 DOI: 10.3390/ani12202837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/07/2022] [Accepted: 10/12/2022] [Indexed: 11/23/2022] Open
Abstract
Simple Summary The domestic cat can metabolize and thrive on a range of intakes of different dietary polyunsaturated fatty acids (PUFA). However, changes in the intake of PUFA have relatively unknown effects on concentrations of other fatty acids and metabolites. Similarly, the effect of increasing dietary betaine (which is a single carbon donor) on circulating concentrations of metabolites and fatty acids is relatively unreported. As might be expected, increasing intake of specific dietary fatty acids resulted in an increased concentration of that fatty acid and moieties containing that fatty acid. Dietary betaine increased concentration of many compounds associated with single carbon metabolism (e.g., dimethyl glycine, sarcosine, methionine) and many PUFA such as the n-6 PUFA linoleic acid (LA) and arachidonic acid (ARA) and the n-3 fatty acids α-linolenic acid (αLA), and docosahexaenoic acid (DHA). Dietary betaine interacted with the addition of dietary fish oil to dampen diet-induced increase of ARA while potentiating the increase of circulating DHA occurring with increased DHA dietary intake. Dietary betaine and fish oil also combined to reduce the circulating concentration of the renal toxin 3-indoxyl sulfate, suggesting a positive effect on the gut microbiota. These data suggest a positive effect of a daily betaine intake which exceeds 60 mg per kg body weight. The data also support an added benefit of a combined EPA+DHA daily intake of greater than 26 mg/kg body weight as well as a daily intake of 75 mg/kg body weight of alpha linolenic acid. Abstract Six foods were used to evaluate the interaction of dietary betaine and n-3 PUFA in the cat. There was no ingredient added to the control food to specifically increase betaine or n-3 fatty acids. The experimental design was a 3 × 2 factorial (fatty acids were varied from the control food which had no added source of n-3 fatty acids, flax was included as a source of 18 carbon n-3, or menhaden fish oil as a source of EPA and DHA). Foods were then formulated using these three foods as a base with added betaine or without added betaine. Forty eight cats were used in this study. Equal numbers of cats were allotted by age and gender to each of the six dietary treatments. The cats were offered food amounts to maintain weight and consumed the food to which they were assigned for the length of the study (60 days). Metabolomics, selected circulating analytes and fatty acids were analyzed at the beginning and end of the feeding period. There was an increase in single carbon metabolites (betaine, dimethyl glycine, and methionine) with the consumption of dietary betaine. Betaine also increased the concentration of specific PUFA (ARA, αLA, DHA, and the sum of all circulating PUFA). The combination of dietary betaine and fish oil resulted in a reduction of circulating 3-indoxyl sulfate which suggests a renal benefit from their combined dietary presence.
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13
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Sarfraz MH, Shahid A, Asghar S, Aslam B, Ashfaq UA, Raza H, Prieto MA, Simal-Gandara J, Barba FJ, Rajoka MSR, Khurshid M, Nashwan AJ. Personalized nutrition, microbiota, and metabolism: A triad for eudaimonia. Front Mol Biosci 2022; 9:1038830. [PMID: 36330221 PMCID: PMC9623024 DOI: 10.3389/fmolb.2022.1038830] [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: 09/07/2022] [Accepted: 10/06/2022] [Indexed: 11/28/2022] Open
Abstract
During the previous few years, the relationship between the gut microbiota, metabolic disorders, and diet has come to light, especially due to the understanding of the mechanisms that particularly link the gut microbiota with obesity in animal models and clinical trials. Research has led to the understanding that the responses of individuals to dietary inputs vary remarkably therefore no single diet can be suggested to every individual. The variations are attributed to differences in the microbiome and host characteristics. In general, it is believed that the immanent nature of host-derived factors makes them difficult to modulate. However, diet can more easily shape the microbiome, potentially influencing human physiology through modulation of digestion, absorption, mucosal immune response, and the availability of bioactive compounds. Thus, diet could be useful to influence the physiology of the host, as well as to ameliorate various disorders. In the present study, we have described recent developments in understanding the disparities of gut microbiota populations between individuals and the primary role of diet-microbiota interactions in modulating human physiology. A deeper understanding of these relationships can be useful for proposing personalized nutrition strategies and nutrition-based therapeutic interventions to improve human health.
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Affiliation(s)
| | - Aqsa Shahid
- Department of Microbiology, Government College University Faisalabad, Faisalabad, Pakistan
- Faculty of Rehabilitation and Allied Health Sciences, Riphah International University, Faisalabad, Pakistan
| | - Samra Asghar
- Faculty of Rehabilitation and Allied Health Sciences, Riphah International University, Faisalabad, Pakistan
| | - Bilal Aslam
- Department of Microbiology, Government College University Faisalabad, Faisalabad, Pakistan
| | - Usman Ali Ashfaq
- Department of Bioinformatics and Biotechnology, Government College University Faisalabad, Faisalabad, Pakistan
| | - Hammad Raza
- Department of Biochemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Miguel A. Prieto
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, University of Vigo, Ourense, Spain
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Bragança, Portugal
| | - Jesus Simal-Gandara
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, University of Vigo, Ourense, Spain
| | - Francisco J. Barba
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, University of Vigo, Ourense, Spain
- Nutrition and Food Science Area, Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine Department, Faculty of Pharmacy, Universitat de València, Burjassot, València, Spain
| | - Muhammad Shahid Riaz Rajoka
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, University of Vigo, Ourense, Spain
- Food and Feed Immunology Group, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Mohsin Khurshid
- Department of Microbiology, Government College University Faisalabad, Faisalabad, Pakistan
| | - Abdulqadir J. Nashwan
- Nursing Department, Hazm Mebaireek General Hospital (HMGH), Hamad Medical Corporation (HMC), Doha, Qatar
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14
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Yang Z, Xu C, Ma S, Zhao RQ, Yang HM, Wang ZY. Effects of betaine supplementation on reproductive performance of breeding geese. Br Poult Sci 2022; 64:283-288. [PMID: 36164766 DOI: 10.1080/00071668.2022.2128988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
1. An experiment feeding three concentrations of betaine was conducted using breeding geese to analyse the reproductive performance, serum biochemical indexes, egg quality and intestinal immunity.2. A total of 450 female and 90 male Jiangnan White breeding geese were divided into three treatments, with five pen replicates each containing 30 female geese and 6 male geese.3. The results showed that there was no significant effect on the reproductive performance, serum biochemical indexes or jejunal villi goblet cells of geese with different levels of betaine in the diet (P>0.05). Compared with the control group, the addition of 2.5 g/kg betaine to the diet showed a tendency to increase egg mass (P>0.05) the betaine content in the yolk (P<0.05). Feeding betaine significantly increased the height of jejunal villi and egg yolk total cholesterol content in female geese (P<0.05).4. In conclusion, adding betaine to the goose diet was effective in its ability to improve intestinal structures and increase egg production. Adding 2.5 g/kg betaine to feed significantly increased the content of TCHOL and betaine in goose eggs.
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Affiliation(s)
- Z Yang
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu Province, 225009, P. R. China
| | - C Xu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province, 225009, P. R. China
| | - S Ma
- Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing, Jiangsu Province, P. R. China
| | - R Q Zhao
- Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing, Jiangsu Province, P. R. China
| | - H M Yang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province, 225009, P. R. China
| | - Z Y Wang
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu Province, 225009, P. R. China.,College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province, 225009, P. R. China
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15
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Wu H, He X, Li Q, Zheng Y, Rayamajhi S, Thapa A, Meng G, Zhang Q, Liu L, Wu H, Gu Y, Zhang S, Zhang T, Wang X, Zhang J, Cao Z, Dong J, Zheng X, Zhang X, Dong X, Sun S, Wang X, Zhou M, Jia Q, Song K, Chang H, Niu K. Relationship between the consumption of wholegrain and nonalcoholic fatty liver disease: The TCLSIH cohort study. Clin Nutr 2022; 41:1483-1490. [PMID: 35667264 DOI: 10.1016/j.clnu.2022.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 05/04/2022] [Accepted: 05/13/2022] [Indexed: 11/03/2022]
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16
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Rana D, Salave S, Perla A, Nadkarni A, Kohle S, Jindal AB, Mandoli A, Dwivedi P, Benival D. Bugs as Drugs: Understanding the Linkage between Gut Microbiota and Cancer Treatment Microbiome in Cancer Therapy. Curr Drug Targets 2022; 23:869-888. [PMID: 35264088 DOI: 10.2174/1389450123666220309101345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/03/2022] [Accepted: 01/12/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND The commensal microbiota is known to regulate host physiology. Dysbiosis or compromised Resilience in the microbial ecology is related to the impending risk of cancer. A potential link between cancer and microbiota is indicated by a lot of evidence. OBJECTIVE The current review explores in detail the various links leading to and /or facilitating oncogenesis, providing sound reasoning or a basis for its utilization as potential therapeutic targets. The present review emphasizes the existing knowledge of the microbiome in cancer and further elaborates on the factors like genetic modifications, effects of dietary components, and environmental agents that are considered to assess the direct and indirect effect of microbes in the process of oncogenesis and on the host's health. Strategies modulating the microbiome and novel biotherapeutics are also discussed. Pharmacomicrobiomics is one such niche accounting for the interplay between the microbiome, xenobiotic, and host responses is also looked upon. METHODS The literature search strategy for this review was conducted by following the methodology of the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA). The method includes the collection of data from different search engines like PubMed, ScienceDirect, SciFinder etc. to get coverage of relevant literature for accumulating appropriate information regarding microbiome, cancer, and their linkages. RESULTS These considerations are made to expand the existing literature on the role of gut microbiota on the host's health, the interaction between host and microbiota, and the reciprocal relationship between the microbiome and modified neoplastic cells. CONCLUSION Potential therapeutic implications of cancer microbiomes that are yet unexplored and have rich therapeutic dividends improving human health are discussed in detail in this review.
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Affiliation(s)
- Dhwani Rana
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), 382355, India
| | - Sagar Salave
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), 382355, India
| | - Akhil Perla
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), 382355, India
| | - Akanksha Nadkarni
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), 382355, India
| | - Shital Kohle
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), 382355, India
| | - Anil B Jindal
- Department of Pharmacy, Birla Institute of Technology and Science Pilani (BITS PILANI), Pilani Campus, Rajasthan, 333031, India
| | - Amit Mandoli
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), 382355, India
| | - Pradeep Dwivedi
- Department of Pharmacology, All India Institute of Medical Sciences- Jodhpur (AIIMS), 342005, India
| | - Derajram Benival
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), 382355, India
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17
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Gijbels A, Schutte S, Esser D, Wopereis S, Gonzales GB, Afman LA. Effects of a 12-week whole-grain or refined wheat intervention on plasma acylcarnitines, bile acids and signaling lipids, and association with liver fat: A post-hoc metabolomics study of a randomized controlled trial. Front Nutr 2022; 9:1026213. [PMID: 36330140 PMCID: PMC9624226 DOI: 10.3389/fnut.2022.1026213] [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: 08/23/2022] [Accepted: 09/14/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND We previously showed that whole-grain wheat (WGW) consumption had beneficial effects on liver fat accumulation, as compared to refined wheat (RW). The mechanisms underlying these effects remain unclear. OBJECTIVE In this study, we investigated the effects of WGW vs. RW consumption on plasma metabolite levels to explore potential underlying mechanisms of the preventive effect of WGW consumption on liver fat accumulation. METHODS Targeted metabolomics of plasma obtained from a concluded 12-week double-blind, randomized controlled trial was performed. Fifty overweight or obese men and women aged 45-70 years with mildly elevated levels of plasma cholesterol were randomized to either 98 g/d of WGW or RW products. Before and after the intervention, a total of 89 fasting plasma metabolite concentrations including acylcarnitines, trimethylamine-N-oxide (TMAO), choline, betaine, bile acids, and signaling lipids were quantified by UPLC-MS/MS. Intrahepatic triglycerides (IHTG) were quantified by 1H-MRS, and multiple liver markers, including circulating levels of β-hydroxybutyrate, alanine transaminase (ALT), aspartate transaminase (AST), γ-glutamyltransferase (γ-GT), serum amyloid A (SAA), and C-reactive protein, were assessed. RESULTS The WGW intervention increased plasma concentrations of four out of 52 signaling lipids-lysophosphatidic acid C18:2, lysophosphatidylethanolamine C18:1 and C18:2, and platelet-activating factor C18:2-and decreased concentrations of the signaling lipid lysophosphatidylglycerol C20:3 as compared to RW intervention, although these results were no longer statistically significant after false discovery rate (FDR) correction. Plasma concentrations of the other metabolites that we quantified were not affected by WGW or RW intervention. Changes in the above-mentioned metabolites were not correlated to change in IHTG upon the intervention. CONCLUSION Plasma acylcarnitines, bile acids, and signaling lipids were not robustly affected by the WGW or RW interventions, which makes them less likely candidates to be directly involved in the mechanisms that underlie the protective effect of WGW consumption or detrimental effect of RW consumption on liver fat accumulation. CLINICAL TRIAL REGISTRATION [www.ClinicalTrials.gov], identifier [NCT02385149].
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Affiliation(s)
- Anouk Gijbels
- Division of Human Nutrition and Health, Wageningen University and Research, Wageningen, Netherlands
| | - Sophie Schutte
- Division of Human Nutrition and Health, Wageningen University and Research, Wageningen, Netherlands
| | - Diederik Esser
- Division of Human Nutrition and Health, Wageningen University and Research, Wageningen, Netherlands
| | - Suzan Wopereis
- Research Group Microbiology and Systems Biology, TNO, Netherlands Organization for Applied Scientific Research, Zeist, Netherlands
| | - Gerard Bryan Gonzales
- Division of Human Nutrition and Health, Wageningen University and Research, Wageningen, Netherlands
| | - Lydia A. Afman
- Division of Human Nutrition and Health, Wageningen University and Research, Wageningen, Netherlands
- *Correspondence: Lydia A. Afman,
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18
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Sanders LM, Zhu Y, Wilcox ML, Koecher K, Maki KC. Whole grain intake, compared to refined grain, improves postprandial glycemia and insulinemia: a systematic review and meta-analysis of randomized controlled trials. Crit Rev Food Sci Nutr 2021:1-19. [PMID: 34930065 DOI: 10.1080/10408398.2021.2017838] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Whole grain (WG) intake has been associated with reduced risk of type 2 diabetes (T2D) and may protect against T2D by lowering postprandial glycemia and insulinemia and improving insulin sensitivity. The objective of this systematic review and meta-analysis was to evaluate the effect of WG intake, compared to refined grain (RG) intake, on postprandial glycemia and insulinemia and markers of glycemic control and insulin resistance in randomized controlled trials (RCTs) in adults. A search of PubMed and Scopus yielded 80 relevant RCTs. Compared to RG, WG intake significantly reduced postprandial glycemia (SMD: -0.30; 95% CI: -0.43, -0.18; P < 0.001), insulinemia (SMD: -0.23; 95% CI: -0.35, -0.10; P < 0.001) and glycated hemoglobin (HbA1c) (SMD: -0.21; 95% CI: -0.37, -0.06; P = 0.007). There was no effect of WG on fasting glucose, fasting insulin, or homeostatic model assessment of insulin resistance (HOMA-IR). These results suggest WG foods improve short-term glycemia and insulinemia, which may improve HbA1c, a marker of long-term glycemic control. This may partially explain the inverse association between WG intake and risk of T2D, but further investigations are needed to understand if short-term reductions in glycemia translate to longer term benefits in reducing the risk of T2D.Systematic Review Registration: PROSPERO Registration CRD42020180069.
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Affiliation(s)
| | - Yong Zhu
- Bell Institute of Health and Nutrition, General Mills, Inc, Minneapolis, MN, USA
| | | | - Katie Koecher
- Bell Institute of Health and Nutrition, General Mills, Inc, Minneapolis, MN, USA
| | - Kevin C Maki
- Midwest Biomedical Research, Addison, IL, USA.,Department of Applied Health Science, School of Public Health, Indiana University, Bloomington, IN, USA
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19
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Wang Z, Yang Z, Liu J, Hao Y, Sun B, Wang J. Potential Health Benefits of Whole Grains: Modulation of Mitochondrial Biogenesis and Energy Metabolism. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:14065-14074. [PMID: 34775748 DOI: 10.1021/acs.jafc.1c05527] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Mitochondria play an essential role in maintaining cellular metabolic homeostasis. However, its dysfunction will cause different pathophysiological consequences. A specific mechanism of action has been developed by cells to adapt to changes in physiological conditions or in response to different stimuli, by meditating mitochondrial number, structure, and energy metabolism. Whole grains are considered healthier than refined grains for their higher amounts of bioactive components, with proven multiple health benefits. The modulation of an appropriate mitochondrial function contributes to the bioactive-component-based health improvements. Thus, this review aims to represent current studies that identify the impact of natural bioactive components in whole grains against metabolic disorders by modulating mitochondrial biogenesis and energy metabolism. It seems most attractive to aim nutritional intervention at the prevention or treatment of metabolic abnormalities and hence to target dietary management at improvement of mitochondrial function.
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Affiliation(s)
- Ziyuan Wang
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Beijing Technology & Business University, Beijing 100048, People's Republic of China
| | - Zihui Yang
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Beijing Technology & Business University, Beijing 100048, People's Republic of China
| | - Jie Liu
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Beijing Technology & Business University, Beijing 100048, People's Republic of China
| | - Yiming Hao
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Beijing Technology & Business University, Beijing 100048, People's Republic of China
| | - Baoguo Sun
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Beijing Technology & Business University, Beijing 100048, People's Republic of China
| | - Jing Wang
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Beijing Technology & Business University, Beijing 100048, People's Republic of China
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20
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Li S, Zong A, An R, Wang H, Liu L, Liu J, Guo X, Xu Z, Wang J, Li D, Du F, Xu T. Effects of whole grain intake on glycemic traits: A systematic review and meta-analysis of randomized controlled trials. Crit Rev Food Sci Nutr 2021:1-20. [PMID: 34793262 DOI: 10.1080/10408398.2021.2001429] [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] [Indexed: 10/19/2022]
Abstract
Whole grains (WGs) may have various health benefits, including lowering blood glucose and improving insulin sensitivity. To conduct a meta-analysis of the effects of WGs compared with non-WGs on changes in fasting glucose, fasting insulin, glycated hemoglobin (HbA1c), and homeostasis model assessment of insulin resistance (HOMA-IR). A systematic literature search was performed for all published randomized controlled trials on the effects of WG intake on fasting glucose, fasting insulin, HbA1c and HOMA-IR response up to February 2021. Weighted mean differences (WMD) were calculated. Pre-specified subgroup and univariate meta-regression analyses were explored to identify the sources of heterogeneity. Sensitivity analysis and bias analysis were conducted to appraise study quality. Among 12,435 articles screened for eligibility, data were extracted from 48 articles. Meta-analysis of 4,118 participants showed that WG consumption resulted in a significant reduction in fasting glucose by -0.15 mmol/L, fasting insulin by -2.71 pmol/L, HbA1c by -0.44%, and HOMA-IR by -0.28, respectively. Compared with mixed grains, brown rice, and wheat, oats were significantly lower on marker of glycemic. Besides, multiple interventions per day consolidated effectiveness of WGs. WG consumption decreased the levels of fasting glucose, fasting insulin, HbA1c, and HOMA-IR compared with non-WG consumption.
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Affiliation(s)
- Shixiang Li
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing Technology of Shandong Province/Shandong Engineering Technology Research Center of food for Special Medical Purpose/Key Laboratory of Novel Food Resources Processing, Ministry of Agriculture and Rural Affairs, Jinan, China.,College of Food Science and Engineering, Shandong Agricultural University, Taian, China
| | - Aizhen Zong
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing Technology of Shandong Province/Shandong Engineering Technology Research Center of food for Special Medical Purpose/Key Laboratory of Novel Food Resources Processing, Ministry of Agriculture and Rural Affairs, Jinan, China.,College of Food Science and Engineering, Shandong Agricultural University, Taian, China
| | - Ran An
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing Technology of Shandong Province/Shandong Engineering Technology Research Center of food for Special Medical Purpose/Key Laboratory of Novel Food Resources Processing, Ministry of Agriculture and Rural Affairs, Jinan, China.,College of Life Sciences, Shandong Normal University, Jinan, China
| | - Haiou Wang
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing Technology of Shandong Province/Shandong Engineering Technology Research Center of food for Special Medical Purpose/Key Laboratory of Novel Food Resources Processing, Ministry of Agriculture and Rural Affairs, Jinan, China
| | - Lina Liu
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing Technology of Shandong Province/Shandong Engineering Technology Research Center of food for Special Medical Purpose/Key Laboratory of Novel Food Resources Processing, Ministry of Agriculture and Rural Affairs, Jinan, China
| | - Jie Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology & Business University (BTBU), Beijing, China
| | - Xiaofei Guo
- Institute of Nutrition and Health, Qingdao University, Qingdao, China
| | - Zhixiang Xu
- College of Food Science and Engineering, Shandong Agricultural University, Taian, China
| | - Jing Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology & Business University (BTBU), Beijing, China
| | - Duo Li
- Institute of Nutrition and Health, Qingdao University, Qingdao, China
| | - Fangling Du
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing Technology of Shandong Province/Shandong Engineering Technology Research Center of food for Special Medical Purpose/Key Laboratory of Novel Food Resources Processing, Ministry of Agriculture and Rural Affairs, Jinan, China
| | - Tongcheng Xu
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing Technology of Shandong Province/Shandong Engineering Technology Research Center of food for Special Medical Purpose/Key Laboratory of Novel Food Resources Processing, Ministry of Agriculture and Rural Affairs, Jinan, China.,College of Food Science and Engineering, Shandong Agricultural University, Taian, China.,College of Life Sciences, Shandong Normal University, Jinan, China.,Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology & Business University (BTBU), Beijing, China
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21
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Wilson ML, Davies IG, Waraksa W, Khayyatzadeh SS, Al-Asmakh M, Mazidi M. The Impact of Microbial Composition on Postprandial Glycaemia and Lipidaemia: A Systematic Review of Current Evidence. Nutrients 2021; 13:nu13113887. [PMID: 34836140 PMCID: PMC8625294 DOI: 10.3390/nu13113887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/22/2021] [Accepted: 10/26/2021] [Indexed: 11/30/2022] Open
Abstract
Postprandial hyperglycaemia is associated with increased risk of cardiovascular disease. Recent studies highlight the role of the gut microbiome in influencing postprandial glycaemic (PPG) and lipidaemic (PPL) responses. The authors of this review sought to address the question: “To what extent does individual gut microbiome diversity and composition contribute to PPG and PPL responses?”. CINAHL Plus, PubMed, Web of Science, and the Cochrane Central Register of Controlled Trials (CENTRAL) databases were searched from January 2010 to June 2020. Following screening, 22 studies were eligible to be included in the current review. All trials reported analysis of gut microbiome diversity and composition and PPG and/or PPL. Results were reported according to the ‘Preferred Reporting Items for Systematic Reviews and Meta-Analysis’ (PRISMA) statement. Individual microbiota structure was found to play a key role in determining postprandial metabolic responses in adults and is attributed to a complex interplay of diet, microbiota composition, and metagenomic activity, which may be predicted by metagenomic analysis. Alterations of gut microbiota, namely relative abundance of bacterial phylum Actinobacteria and Proteobacteria, along with Enterobacteriaceae, were associated with individual variation in postprandial glycaemic response in adults. The findings of the current review present new evidence to support a personalised approach to nutritional recommendations and guidance for optimal health, management, and treatment of common metabolic disorders. In conclusion, personalised nutrition approaches based on individual microbial composition may improve postprandial regulation of glucose and lipids, providing a potential strategy to ameliorate cardiometabolic health outcomes.
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Affiliation(s)
- Megan L. Wilson
- Research Institute of Sport and Exercise Science, Liverpool John Moores University, Liverpool L3 3AF, UK; (M.L.W.); (I.G.D.); (W.W.)
| | - Ian G. Davies
- Research Institute of Sport and Exercise Science, Liverpool John Moores University, Liverpool L3 3AF, UK; (M.L.W.); (I.G.D.); (W.W.)
| | - Weronika Waraksa
- Research Institute of Sport and Exercise Science, Liverpool John Moores University, Liverpool L3 3AF, UK; (M.L.W.); (I.G.D.); (W.W.)
| | - Sayyed S. Khayyatzadeh
- Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd 8916188635, Iran;
- Department of Nutrition, Faculty of Health, Shahid Sadoughi University of Medical Sciences, Yazd 8915173143, Iran
| | - Maha Al-Asmakh
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha 2713, Qatar;
- Biomedical Research Center, Qatar University, Doha 2713, Qatar
| | - Mohsen Mazidi
- Medical Research Council Population Health Research Unit, University of Oxford, Oxford OX3 7LF, UK
- Clinical Trial Service Unit (CTSU), Nuffield Department of Population Health, University of Oxford, Oxford OX3 7LF, UK
- Department of Twin Research and Genetic Epidemiology, King’s College London, South Wing St Thomas’, London SE1 7EH, UK
- Correspondence:
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22
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High-Fiber, Whole-Food Dietary Intervention Alters the Human Gut Microbiome but Not Fecal Short-Chain Fatty Acids. mSystems 2021; 6:6/2/e00115-21. [PMID: 33727392 PMCID: PMC8546969 DOI: 10.1128/msystems.00115-21] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Dietary shifts can have a direct impact on the gut microbiome by preferentially selecting for microbes capable of utilizing the various dietary nutrients. The intake of dietary fiber has decreased precipitously in the last century, while consumption of processed foods has increased. Fiber, or microbiota-accessible carbohydrates (MACs), persist in the digestive tract and can be metabolized by specific bacteria encoding fiber-degrading enzymes. The digestion of MACs results in the accumulation of short-chain fatty acids (SCFAs) and other metabolic by-products that are critical to human health. Here, we implemented a 2-week dietary fiber intervention aiming for 40 to 50 g of fiber per day within the context of a course-based undergraduate research experience (CURE) (n = 20). By coupling shotgun metagenomic sequencing and targeted gas chromatography-mass spectrometry (GC-MS), we found that the dietary intervention significantly altered the composition of individual gut microbiomes, accounting for 8.3% of the longitudinal variability within subjects. Notably, microbial taxa that increased in relative abundance as a result of the diet change included known MAC degraders (i.e., Bifidobacterium and Lactobacillus). We further assessed the genetic diversity within Bifidobacterium, assayed by amplification of the groEL gene. Concomitant with microbial composition changes, we show an increase in the abundance of genes involved in inositol degradation. Despite these changes in gut microbiome composition, we did not detect a consistent shift in SCFA abundance. Collectively, our results demonstrate that on a short-term timescale of 2 weeks, increased fiber intake can induce compositional changes of the gut microbiome, including an increase in MAC-degrading bacteria. IMPORTANCE A profound decrease in the consumption of dietary fiber in many parts of the world in the last century may be associated with the increasing prevalence of type II diabetes, colon cancer, and other health problems. A typical U.S. diet includes about ∼15 g of fiber per day, far less fiber than the daily recommended allowance. Changes in dietary fiber intake affect human health not only through the uptake of nutrients directly but also indirectly through changes in the microbial community and their associated metabolism. Here, we conducted a 2-week diet intervention in healthy young adults to investigate the impact of fiber consumption on the gut microbiome. Participants increased their average fiber consumption by 25 g/day on average for 2 weeks. The high-fiber diet intervention altered the gut microbiome of the study participants, including increases in known fiber-degrading microbes, such as Bifidobacterium and Lactobacillus.
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23
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Seal CJ, Courtin CM, Venema K, de Vries J. Health benefits of whole grain: effects on dietary carbohydrate quality, the gut microbiome, and consequences of processing. Compr Rev Food Sci Food Saf 2021; 20:2742-2768. [PMID: 33682356 DOI: 10.1111/1541-4337.12728] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/26/2021] [Accepted: 01/26/2021] [Indexed: 02/06/2023]
Abstract
Grains are important sources of carbohydrates in global dietary patterns. The majority of these carbohydrates, especially in refined-grain products, are digestible. Most carbohydrate digestion takes place in the small intestine where monosaccharides (predominantly glucose) are absorbed, delivering energy to the body. However, a considerable part of the carbohydrates, especially in whole grains, is indigestible dietary fibers. These impact gut motility and transit and are useful substrates for the gut microbiota affecting its composition and quality. For the most part, the profile of digestible and indigestible carbohydrates and their complexity determine the nutritional quality of carbohydrates. Whole grains are more complex than refined grains and are promoted as part of a healthy and sustainable diet mainly because the contribution of indigestible carbohydrates, and their co-passenger nutrients, is significantly higher. Higher consumption of whole grain is recommended because it is associated with lower incidence of, and mortality from, CVD, type 2 diabetes, and some cancers. This may be due in part to effects on the gut microbiota. Although processing of cereals during milling and food manufacturing is necessary to make them edible, it also offers the opportunity to still further improve the nutritional quality of whole-grain flours and foods made from them. Changing the composition and availability of grain carbohydrates and phytochemicals during processing may positively affect the gut microbiota and improve health.
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Affiliation(s)
- Chris J Seal
- Human Nutrition Research Centre, Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK
| | - Christophe M Courtin
- Laboratory of Food Chemistry and Biochemistry and Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Kasteelpark Arenberg 20, B-3001, Leuven, Belgium
| | - Koen Venema
- Centre for Healthy Eating & Food Innovation, Maastricht University-Campus Venlo, St Jansweg 20, 5928 RC, Venlo, The Netherlands
| | - Jan de Vries
- Nutrition Solutions, Reuvekamp 26, 7213CE, Gorssel, The Netherlands
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24
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Iyer P, Beck EJ, Walton KL. A systematic review of the effect of dietary interventions on cardiovascular disease risk in adults with spinal cord injury. J Spinal Cord Med 2021; 44:184-203. [PMID: 30945998 PMCID: PMC7952075 DOI: 10.1080/10790268.2019.1592926] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
CONTEXT Cardiovascular disease is one of the leading causes of mortality in individuals with spinal cord injury (SCI), highlighting the need for targeted risk minimization interventions. OBJECTIVE To determine the effect of dietary interventions on CVD risk in adults with SCI. METHODS A systematic literature review of studies investigating the impact of dietary intervention on CVD risk in SCI individuals was conducted according to the PRISMA statement. CASP checklists were used for critical appraisal, Academy of Nutrition and Dietetics Quality criteria checklist (QCC) for determining risk of bias and the GRADE approach to ascertain the quality of evidence of the outcomes. The results were reported descriptively. RESULTS A total of eight studies were included from the identified 862 articles. Dietary intervention strategies varied across all studies, as did the outcome measures. Adult learning theories were not considered. The lack of controlled trials (two only) meant that while some interventions proved useful, risk of bias was high. Outcome measures were assessed as low to very low quality again identifying that this area is highly under-researched. CONCLUSION Despite documented evidence of the benefits of diet on CVD risk reduction, this review has identified a dearth of research in SCI. Nonetheless, the review emphasizes the potential of diet in conjunction with exercise in minimizing CVD risk in SCI. Further good quality research backed by robust data collection, simple, actionable strategies and knowledge translation techniques are essential to ascertain the effects of dietary intervention in lowering CVD risk in SCI.
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Affiliation(s)
- Priya Iyer
- School of Medicine, University of Wollongong & Dietitian, Royal Rehab, Sydney, Australia
| | - Eleanor J. Beck
- School of Medicine and Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, Australia
| | - Karen L. Walton
- School of Medicine and Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, Australia
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25
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Williams GM, Tapsell LC, O'Brien CL, Tosh SM, Barrett EM, Beck EJ. Gut microbiome responses to dietary intake of grain-based fibers with the potential to modulate markers of metabolic disease: a systematic literature review. Nutr Rev 2020; 79:1274-1292. [PMID: 33369654 DOI: 10.1093/nutrit/nuaa128] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
CONTEXT Cereal fiber modulates the gut microbiome and benefits metabolic health. The potential link between these effects is of interest.0. OBJECTIVE The aim for this systematic review was to assess evidence surrounding the influence of cereal fiber intake on microbiome composition, microbiome diversity, short-chain fatty acid production, and risk factors for metabolic syndrome. DATA SOURCES AND EXTRACTION The MEDLINE, PubMed, CINAHL, and Cochrane Library databases were searched systematically, and quality of studies was assessed using the Cochrane Risk of Bias 2.0 tool. Evidence relating to study design, dietary data collection, and outcomes was qualitatively synthesized on the basis of fiber type. DATA ANALYSIS Forty-six primary publications and 2 secondary analyses were included. Cereal fiber modulated the microbiome in most studies; however, taxonomic changes indicated high heterogeneity. Short-chain fatty acid production, microbiome diversity, and metabolic-related outcomes varied and did not always occur in parallel with microbiome changes. Poor dietary data were a further limitation. CONCLUSIONS Cereal fiber may modulate the gut microbiome; however, evidence of the link between this and metabolic outcomes is limited. Additional research is required with a focus on robust and consistent methodology. SYSTEMATIC REVIEW REGISTRATION PROSPERO registration no. CRD42018107117.
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Affiliation(s)
- Georgina M Williams
- School of Medicine, Science, Medicine and Health, University of Wollongong, and the Illawarra Health and Medical Research Institute, Wollongong, New South Wales, Australia
| | - Linda C Tapsell
- School of Medicine, Science, Medicine and Health, University of Wollongong, and the Illawarra Health and Medical Research Institute, Wollongong, New South Wales, Australia
| | - Claire L O'Brien
- Australian National University, Canberra, Australian Capital Territory, Australia
| | - Susan M Tosh
- Faculty of Health Sciences, University of Ottawa, Ottawa, Canada
| | - Eden M Barrett
- School of Medicine, Science, Medicine and Health, University of Wollongong, and the Illawarra Health and Medical Research Institute, Wollongong, New South Wales, Australia
| | - Eleanor J Beck
- School of Medicine, Science, Medicine and Health, University of Wollongong, and the Illawarra Health and Medical Research Institute, Wollongong, New South Wales, Australia
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26
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Dibay Moghadam S, Navarro SL, Shojaie A, Randolph TW, Bettcher LF, Le CB, Hullar MA, Kratz M, Neuhouser ML, Lampe PD, Raftery D, Lampe JW. Plasma lipidomic profiles after a low and high glycemic load dietary pattern in a randomized controlled crossover feeding study. Metabolomics 2020; 16:121. [PMID: 33219392 PMCID: PMC8116047 DOI: 10.1007/s11306-020-01746-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 11/09/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Dietary patterns low in glycemic load are associated with reduced risk of cardiometabolic diseases. Improvements in serum lipid concentrations may play a role in these observed associations. OBJECTIVE We investigated how dietary patterns differing in glycemic load affect clinical lipid panel measures and plasma lipidomics profiles. METHODS In a crossover, controlled feeding study, 80 healthy participants (n = 40 men, n = 40 women), 18-45 y were randomized to receive low-glycemic load (LGL) or high glycemic load (HGL) diets for 28 days each with at least a 28-day washout period between controlled diets. Fasting plasma samples were collected at baseline and end of each diet period. Lipids on a clinical panel including total-, VLDL-, LDL-, and HDL-cholesterol and triglycerides were measured using an auto-analyzer. Lipidomics analysis using mass-spectrometry provided the concentrations of 863 species. Linear mixed models and lipid ontology enrichment analysis were implemented. RESULTS Lipids from the clinical panel were not significantly different between diets. Univariate analysis showed that 67 species on the lipidomics panel, predominantly in the triacylglycerol class, were higher after the LGL diet compared to the HGL (FDR < 0.05). Three species with FA 17:0 were lower after LGL diet with enrichment analysis (FDR < 0.05). CONCLUSION In the context of controlled eucaloric diets with similar macronutrient distribution, these results suggest that there are relative shifts in lipid species, but the overall pool does not change. Further studies are needed to better understand in which compartment the different lipid species are transported in blood, and how these shifts are related to health outcomes. This trial was registered at clinicaltrials.gov as NCT00622661.
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Affiliation(s)
- Sepideh Dibay Moghadam
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, Seattle, WA, USA
- Department of Epidemiology, University of Washington, Seattle, WA, USA
| | - Sandi L Navarro
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, Seattle, WA, USA
| | - Ali Shojaie
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - Timothy W Randolph
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, Seattle, WA, USA
| | - Lisa F Bettcher
- Department of Anesthesiology and Pain Medicine, Northwest Metabolomics Research Center, University of Washington, Seattle, WA, USA
| | - Cynthia B Le
- Department of Anesthesiology and Pain Medicine, Northwest Metabolomics Research Center, University of Washington, Seattle, WA, USA
| | - Meredith A Hullar
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, Seattle, WA, USA
| | - Mario Kratz
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, Seattle, WA, USA
| | - Marian L Neuhouser
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, Seattle, WA, USA
| | - Paul D Lampe
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, Seattle, WA, USA
| | - Daniel Raftery
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, Seattle, WA, USA
- Department of Anesthesiology and Pain Medicine, Northwest Metabolomics Research Center, University of Washington, Seattle, WA, USA
| | - Johanna W Lampe
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, Seattle, WA, USA.
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27
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Whole grain cereal fibers and their support of the gut commensal Clostridia for health. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.bcdf.2020.100245] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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28
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Betaine: A Promising Micronutrient in Diet Intervention for Ameliorating Maternal Blood Biochemical Alterations in Gestational Diabetes Mellitus. Int J Pept Res Ther 2020. [DOI: 10.1007/s10989-019-09922-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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29
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Woods DF, Kozak IM, O'Gara F. Microbiome and Functional Analysis of a Traditional Food Process: Isolation of a Novel Species ( Vibrio hibernica) With Industrial Potential. Front Microbiol 2020; 11:647. [PMID: 32373093 PMCID: PMC7179675 DOI: 10.3389/fmicb.2020.00647] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 03/20/2020] [Indexed: 11/29/2022] Open
Abstract
Traditional food preservation processes are vital for the food industry. They not only preserve a high-quality protein and nutrient source but can also provide important value-added organoleptic properties. The Wiltshire process is a traditional food curing method applied to meat, and special recognition is given to the maintenance of a live rich microflora within the curing brine. We have previously analyzed a curing brine from this traditional meat process and characterized a unique microbial core signature. The characteristic microbial community is actively maintained and includes the genera, Marinilactibacillus, Carnobacterium, Leuconostoc, and Vibrio. The bacteria present are vital for Wiltshire curing compliance. However, the exact function of this microflora is largely unknown. A microbiome profiling of three curing brines was conducted and investigated for functional traits by the robust bioinformatic tool, Tax4Fun. The key objective was to uncover putative metabolic functions associated with the live brine and to identify changes over time. The functional bioinformatic analysis revealed metabolic enrichments over time, with many of the pathways identified as being involved in organoleptic development. The core bacteria present in the brine are Lactic Acid Bacteria (LAB), with the exception of the Vibrio genus. LAB are known for their positive contribution to food processing, however, little work has been conducted on the use of Vibrio species for beneficial processes. The Vibrio genome was sequenced by Illumina MiSeq technologies and annotated in RAST. A phylogenetic reconstruction was completed using both the 16S rRNA gene and housekeeping genes, gapA, ftsZ, mreB, topA, gyrB, pyrH, recA, and rpoA. The isolated Vibrio species was defined as a unique novel species, named Vibrio hibernica strain B1.19. Metabolic profiling revealed that the bacterium has a unique substrate scope in comparison to other closely related Vibrio species tested. The possible function and industrial potential of the strain was investigated using carbohydrate metabolizing profiling under food processing relevant conditions. Vibrio hibernica is capable of metabolizing a unique carbohydrate profile at low temperatures. This characteristic provides new application options for use in the industrial food sector, as well as highlighting the key role of this bacterium in the Wiltshire curing process.
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Affiliation(s)
- David F Woods
- BIOMERIT Research Centre, School of Microbiology, University College Cork, Cork, Ireland
| | - Iwona M Kozak
- BIOMERIT Research Centre, School of Microbiology, University College Cork, Cork, Ireland
| | - Fergal O'Gara
- BIOMERIT Research Centre, School of Microbiology, University College Cork, Cork, Ireland.,Human Microbiome Programme, School of Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia.,Telethon Kids Institute, Perth Children's Hospital, Perth, WA, Australia
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Aron-Wisnewsky J, Warmbrunn MV, Nieuwdorp M, Clément K. Nonalcoholic Fatty Liver Disease: Modulating Gut Microbiota to Improve Severity? Gastroenterology 2020; 158:1881-1898. [PMID: 32044317 DOI: 10.1053/j.gastro.2020.01.049] [Citation(s) in RCA: 165] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 01/13/2020] [Accepted: 01/13/2020] [Indexed: 02/06/2023]
Abstract
Gut microbiota plays a role in the pathophysiology of metabolic diseases, which include nonalcoholic fatty liver diseases, through the gut-liver axis. To date, clinical guidelines recommend a weight loss goal of 7%-10% to improve features of nonalcoholic fatty liver diseases. Because this target is not easily achieved by all patients, alternative therapeutic options are currently being evaluated. This review focuses on therapeutics that aim to modulate the gut microbiota and the gut-liver axis. We discuss how probiotics, prebiotics, synbiotic, fecal microbiota transfer, polyphenols, specific diets, and exercise interventions have been found to modify gut microbiota signatures; improve nonalcoholic fatty liver disease outcomes; and detail, when available, the different mechanisms by which these beneficial outcomes might occur. Apart from probiotics that have already been tested in human randomized controlled trials, most of these potential therapeutics have been studied in animals. Their efficacy still warrants confirmation in humans using appropriate design.
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Affiliation(s)
- Judith Aron-Wisnewsky
- Sorbonne Université, INSERM, UMRS U1269, Nutriomics Research Unit, Paris, France; Nutrition Department, Assistance Publique Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Centre de Recherche en Nutrition Humaine d'Ile de France, Paris, France; Department of Vascular Medicine, University of Amsterdam Medical Center, Amsterdam, The Netherlands.
| | - Moritz V Warmbrunn
- Department of Vascular Medicine, University of Amsterdam Medical Center, Amsterdam, The Netherlands
| | - Max Nieuwdorp
- Department of Vascular Medicine, University of Amsterdam Medical Center, Amsterdam, The Netherlands; Department of Internal Medicine, University of Amsterdam Medical Center, Free University, Amsterdam, The Netherlands
| | - Karine Clément
- Sorbonne Université, INSERM, UMRS U1269, Nutriomics Research Unit, Paris, France; Nutrition Department, Assistance Publique Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Centre de Recherche en Nutrition Humaine d'Ile de France, Paris, France.
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31
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Harnessing Microbes for Sustainable Development: Food Fermentation as a Tool for Improving the Nutritional Quality of Alternative Protein Sources. Nutrients 2020; 12:nu12041020. [PMID: 32276384 PMCID: PMC7230334 DOI: 10.3390/nu12041020] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/26/2020] [Accepted: 04/07/2020] [Indexed: 12/21/2022] Open
Abstract
In order to support the multiple levels of sustainable development, the nutritional quality of plant-based protein sources needs to be improved by food technological means. Microbial fermentation is an ancient food technology, utilizing dynamic populations of microorganisms and possessing a high potential to modify chemical composition and cell structures of plants and thus to remove undesirable compounds and to increase bioavailability of nutrients. In addition, fermentation can be used to improve food safety. In this review, the effects of fermentation on the protein digestibility and micronutrient availability in plant-derived raw materials are surveyed. The main focus is on the most important legume, cereal, and pseudocereal species (Cicer arietinum, Phaseolus vulgaris, Vicia faba, Lupinus angustifolius, Pisum sativum, Glycine max; Avena sativa, Secale cereale, Triticum aestivum, Triticum durum, Sorghum bicolor; and Chenopodium quinoa, respectively) of the agrifood sector. Furthermore, the current knowledge regarding the in vivo health effects of fermented foods is examined, and the critical points of fermentation technology from the health and food safety point of view are discussed.
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Pan S, Hullar MAJ, Lai LA, Peng H, May DH, Noble WS, Raftery D, Navarro SL, Neuhouser ML, Lampe PD, Lampe JW, Chen R. Gut Microbial Protein Expression in Response to Dietary Patterns in a Controlled Feeding Study: A Metaproteomic Approach. Microorganisms 2020; 8:E379. [PMID: 32156071 PMCID: PMC7143255 DOI: 10.3390/microorganisms8030379] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 03/02/2020] [Accepted: 03/04/2020] [Indexed: 12/11/2022] Open
Abstract
Although the gut microbiome has been associated with dietary patterns linked to health, microbial metabolism is not well characterized. This ancillary study was a proof of principle analysis for a novel application of metaproteomics to study microbial protein expression in a controlled dietary intervention. We measured the response of the microbiome to diet in a randomized crossover dietary intervention of a whole-grain, low glycemic load diet (WG) and a refined-grain, high glycemic load diet (RG). Total proteins in stools from 9 participants at the end of each diet period (n = 18) were analyzed by LC MS/MS and proteins were identified using the Human Microbiome Project (HMP) human gut microbiome database and UniProt human protein databases. T-tests, controlling for false discovery rate (FDR) <10%, were used to compare the Gene Ontology (GO) biological processes and bacterial enzymes between the two interventions. Using shotgun proteomics, more than 53,000 unique peptides were identified including microbial (89%) and human peptides (11%). Forty-eight bacterial enzymes were statistically different between the diets, including those implicated in SCFA production and degradation of fatty acids. Enzymes associated with degradation of human mucin were significantly enriched in the RG diet. These results illustrate that the metaproteomic approach is a valuable tool to study the microbial metabolism of diets that may influence host health.
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Affiliation(s)
- Sheng Pan
- Institute of Molecular Medicine, the University of Texas Health Science Center at Houston, Houston, TX 77030, USA; (S.P.); (H.P.)
| | - Meredith A. J. Hullar
- Fred Hutchinson Cancer Research Center, Division of Public Health Sciences, Seattle, WA 98109, USA; (D.R.); (S.L.N.); (M.L.N.); (P.D.L.); (J.W.L.)
| | - Lisa A. Lai
- Department of Medicine, University of Washington, Seattle, WA 98105, USA;
| | - Hong Peng
- Institute of Molecular Medicine, the University of Texas Health Science Center at Houston, Houston, TX 77030, USA; (S.P.); (H.P.)
| | - Damon H. May
- Department of Genome Sciences, University of Washington, Seattle, WA 98105, USA; (D.H.M.)
| | - William S. Noble
- Department of Genome Sciences, University of Washington, Seattle, WA 98105, USA; (D.H.M.)
| | - Daniel Raftery
- Fred Hutchinson Cancer Research Center, Division of Public Health Sciences, Seattle, WA 98109, USA; (D.R.); (S.L.N.); (M.L.N.); (P.D.L.); (J.W.L.)
- Department of Anesthesiology and Pain Medicine, Northwest Metabolomics Research Center, University of Washington, Seattle, WA 98109 USA
| | - Sandi L. Navarro
- Fred Hutchinson Cancer Research Center, Division of Public Health Sciences, Seattle, WA 98109, USA; (D.R.); (S.L.N.); (M.L.N.); (P.D.L.); (J.W.L.)
| | - Marian L. Neuhouser
- Fred Hutchinson Cancer Research Center, Division of Public Health Sciences, Seattle, WA 98109, USA; (D.R.); (S.L.N.); (M.L.N.); (P.D.L.); (J.W.L.)
| | - Paul D. Lampe
- Fred Hutchinson Cancer Research Center, Division of Public Health Sciences, Seattle, WA 98109, USA; (D.R.); (S.L.N.); (M.L.N.); (P.D.L.); (J.W.L.)
| | - Johanna W. Lampe
- Fred Hutchinson Cancer Research Center, Division of Public Health Sciences, Seattle, WA 98109, USA; (D.R.); (S.L.N.); (M.L.N.); (P.D.L.); (J.W.L.)
| | - Ru Chen
- Division of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
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Sadeghi O, Sadeghian M, Rahmani S, Maleki V, Larijani B, Esmaillzadeh A. Whole-Grain Consumption Does Not Affect Obesity Measures: An Updated Systematic Review and Meta-analysis of Randomized Clinical Trials. Adv Nutr 2020; 11:280-292. [PMID: 31390462 PMCID: PMC7073321 DOI: 10.1093/advances/nmz076] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Since the release of a previous meta-analysis on the effect of whole-grain intake on obesity measures, several clinical trials have been published. Therefore, we aimed to update the previous meta-analysis on the effect of whole-grain intake on obesity measures by including recently published studies, as well as considering the main limitations in that analysis. We searched the online databases of PubMed, Scopus, Clarivate Web of Science, EmBase, and Google Scholar for relevant studies published up to February 2019, using relevant keywords. Randomized clinical trials investigating the effect of whole-grain products or diets high in whole-grain foods, compared with a control diet, on anthropometric measures [including body weight, BMI, waist circumference, and fat mass (FM)] were included. In total, 21 studies with a total sample of 1798 participants, aged ≥18 years, were considered. Based on 22 effect sizes from 19 studies on body weight, with a total sample of 1698 adults, we found no significant effect of whole-grain consumption on body weight. The same findings were obtained for BMIs, such that using 10 effect sizes from 10 clinical trials with a total sample of 769 individuals we did not find any significant effect. With regards to body fat percentage [weighted mean difference (WMD): 0.27; 95% CI: -0.05 to 0.58%; P = 0.09], FM (WMD: 0.45; 95% CI: -0.12 to 1.02 kg; P = 0.12), fat-free mass (WMD: 0.31; 95% CI: -0.67 to 0.06 kg; P = 0.10), and waist circumference (WMD: 0.06; 95% CI: -0.50 to 0.63 cm; P = 0.82), we failed to find any significant effect of whole-grain consumption. In conclusion, our findings did not support current recommendations of whole-grain intake in attempts to control obesity measures. Given the beneficial effects of whole-grain intake on other measures of human health, additional well-designed studies are required to further investigate the effect on obesity. The protocol has been registered with PROSPERO (registration number CRD42019125320).
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Affiliation(s)
- Omid Sadeghi
- Students Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran,Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Sadeghian
- Department of Nutrition, School of Paramedical Sciences, Ahvaz Jundishapur University of Medical Science, Ahvaz, Iran
| | - Sepideh Rahmani
- Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Vahid Maleki
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Esmaillzadeh
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran,Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran,Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran,Address correspondence to AE (e-mail: )
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Abstract
Diet is an important risk factor for colorectal cancer (CRC), and several dietary constituents implicated in CRC are modified by gut microbial metabolism. Microbial fermentation of dietary fiber produces short-chain fatty acids, e.g., acetate, propionate, and butyrate. Dietary fiber has been shown to reduce colon tumors in animal models, and, in vitro, butyrate influences cellular pathways important to cancer risk. Furthermore, work from our group suggests that the combined effects of butyrate and omega-3 polyunsaturated fatty acids (n-3 PUFA) may enhance the chemopreventive potential of these dietary constituents. We postulate that the relatively low intakes of n-3 PUFA and fiber in Western populations and the failure to address interactions between these dietary components may explain why chemoprotective effects of n-3 PUFA and fermentable fibers have not been detected consistently in prospective cohort studies. In this review, we summarize the evidence outlining the effects of n-3 long-chain PUFA and highly fermentable fiber with respect to alterations in critical pathways important to CRC prevention, particularly intrinsic mitochondrial-mediated programmed cell death resulting from the accumulation of lipid reactive oxygen species (ferroptosis), and epigenetic programming related to lipid catabolism and beta-oxidation-associated genes.
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Adebo OA, Gabriela Medina-Meza I. Impact of Fermentation on the Phenolic Compounds and Antioxidant Activity of Whole Cereal Grains: A Mini Review. Molecules 2020; 25:molecules25040927. [PMID: 32093014 PMCID: PMC7070691 DOI: 10.3390/molecules25040927] [Citation(s) in RCA: 171] [Impact Index Per Article: 34.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 02/09/2020] [Accepted: 02/14/2020] [Indexed: 12/16/2022] Open
Abstract
Urbanization, emergence, and prominence of diseases and ailments have led to conscious and deliberate consumption of health beneficial foods. Whole grain (WG) cereals are one type of food with an array of nutritionally important and healthy constituents, including carotenoids, inulin, β-glucan, lignans, vitamin E-related compounds, tocols, phytosterols, and phenolic compounds, which are beneficial for human consumption. They not only provide nutrition, but also confer health promoting effects in food, such as anti-carcinogenic, anti-microbial, and antioxidant properties. Fermentation is a viable processing technique to transform whole grains in edible foods since it is an affordable, less complicated technique, which not only transforms whole grains but also increases nutrient bioavailability and positively alters the levels of health-promoting components (particularly antioxidants) in derived whole grain products. This review addresses the impact of fermentation on phenolic compounds and antioxidant activities with most available studies indicating an increase in these health beneficial constituents. Such increases are mostly due to breakdown of the cereal cell wall and subsequent activities of enzymes that lead to the liberation of bound phenolic compounds, which increase antioxidant activities. In addition to the improvement of these valuable constituents, increasing the consumption of fermented whole grain cereals would be vital for the world's ever-growing population. Concerted efforts and adequate strategic synergy between concerned stakeholders (researchers, food industry, and government/policy makers) are still required in this regard to encourage consumption and dispel negative presumptions about whole grain foods.
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Affiliation(s)
- Oluwafemi Ayodeji Adebo
- Department of Biotechnology and Food Technology, Faculty of Science, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Gauteng, South Africa
- Correspondence: ; Tel.: +27-11-559-6261
| | - Ilce Gabriela Medina-Meza
- Department of Biosystems and Agricultural Engineering, Michigan State University, 524 South Shaw Lane, East Lansing, MI 48824-1323, USA;
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Yang W, Ma Y, Liu Y, Smith-Warner SA, Simon TG, Chong DQ, Qi Q, Meyerhardt JA, Giovannucci EL, Chan AT, Zhang X. Association of Intake of Whole Grains and Dietary Fiber With Risk of Hepatocellular Carcinoma in US Adults. JAMA Oncol 2020; 5:879-886. [PMID: 30789662 DOI: 10.1001/jamaoncol.2018.7159] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Importance Increased intake of whole grain and dietary fiber has been associated with lower risk of insulin resistance, hyperinsulinemia, and inflammation, which are known predisposing factors for hepatocellular carcinoma (HCC). Therefore, we hypothesized that long-term intake of whole grains and dietary fiber may be associated with lower risk of HCC. Objective To assess the associations of whole grain and dietary fiber intake with the risk of HCC. Design, Setting, and Participants Cohort study of the intake of whole grains, their subcomponents (bran and germ), and dietary fiber (cereal, fruit, and vegetable) in 125 455 participants from 2 cohorts from the Nurses' Health Study and the Health Professionals Follow-up Study. Exposures Intake of whole grains, their subcomponents (bran and germ), and dietary fiber (cereal, fruit, and vegetable) were collected and updated almost every 4 years using validated food frequency questionnaires. Main Outcomes and Measures Multivariable hazard ratios (HRs) and 95% CIs were estimated using Cox proportional hazards regression model after adjusting for most known HCC risk factors. Results After an average follow-up of 24.2 years, we identified 141 patients with HCC among 125 455 participants (77 241 women and 48 214 men (mean [SD] age, 63.4 [10.7] years). Increased whole grain intake was significantly associated with lower risk of HCC (the highest vs lowest tertile intake: HR, 0.63; 95% CI, 0.41-0.96; P = .04 for trend). A nonsignificant inverse HCC association was observed for total bran (HR, 0.70; 95% CI, 0.46-1.07; P = .11 for trend), but not for germ. Increased intake of cereal fiber (HR, 0.68; 95% CI, 0.45-1.03; P = .07 for trend), but not fruit or vegetable fiber, was associated with a nonsignificant reduced risk of HCC. Conclusions and Relevance Increased intake of whole grains and possibly cereal fiber and bran could be associated with reduced risk of HCC among adults in the United States. Future studies that carefully consider hepatitis B and C virus infections are needed to replicate our findings, to examine these associations in other racial/ethnic or high-risk populations, and to elucidate the underlying mechanisms.
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Affiliation(s)
- Wanshui Yang
- Department of Nutrition, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Yanan Ma
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.,Department of Biostatistics and Epidemiology, School of Public Health, China Medical University, Shenyang, Liaoning, China
| | - Yue Liu
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.,Center for Evidence-Based Chinese Medicine, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Stephanie A Smith-Warner
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, Massachusetts.,Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Tracey G Simon
- Liver Center, Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital, Boston.,Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital, Boston.,Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Boston
| | | | - Qibin Qi
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York
| | - Jeffrey A Meyerhardt
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Edward L Giovannucci
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.,Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, Massachusetts.,Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Andrew T Chan
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.,Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital, Boston.,Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Boston
| | - Xuehong Zhang
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
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Tangestani H, Emamat H, Ghalandari H, Shab-Bidar S. Whole Grains, Dietary Fibers and the Human Gut Microbiota: A Systematic Review of Existing Literature. Recent Pat Food Nutr Agric 2020; 11:235-248. [PMID: 32178621 DOI: 10.2174/2212798411666200316152252] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 02/10/2020] [Accepted: 02/26/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND The health benefits of dietary fibers have been proved for a long time. The importance of microbiota has been identified in human health and there is a growing interest to study the factors affecting it. OBJECTIVE This systematic review aimed to investigate the impact of fiber and whole grains (WGs) on human gut microbiota in a patent-based review. METHODS All related clinical trials were systematically searched on PubMed and Scopus search engines from inception up to Feb 2020. Interventional human studies reporting changes in microbiota by using any type of grains/fibers were included. The following information was extracted: date of the publication, location and design of the study, sample size, study population, demographic characteristics, the amount of dietary WGs/fiber, the duration of intervention, the types of grains or fibers, and changes in the composition of the microbiota. RESULTS Of 138 studies which were verified, 35 studies with an overall population of 1080 participants, met the inclusion criteria and entered the systematic review. The results of interventional trials included in this review suggest some beneficial effects of consuming different amounts and types of WGs and fibers on the composition of intestinal microbiota. Most included studies showed that the intake of WGs and fibers increases bifidobacteria and lactobacilli and reduces the pathogenic bacteria, such as Escherichia coli and clostridia in the human gut. CONCLUSION The consumption of WGs/fibers may modify the intestinal microbiota and promote the growth of bifidobacteria and lactobacilli. Nevertheless, further research is warranted in different populations and pathological conditions.
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Affiliation(s)
- Hadith Tangestani
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Hadi Emamat
- Student Research Committee, Department and Faculty of Nutrition Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Ghalandari
- Nutritionist, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sakineh Shab-Bidar
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
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Rahmani S, Sadeghi O, Sadeghian M, Sadeghi N, Larijani B, Esmaillzadeh A. The Effect of Whole-Grain Intake on Biomarkers of Subclinical Inflammation: A Comprehensive Meta-analysis of Randomized Controlled Trials. Adv Nutr 2020; 11:52-65. [PMID: 31301131 PMCID: PMC7442343 DOI: 10.1093/advances/nmz063] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 05/14/2019] [Accepted: 06/05/2019] [Indexed: 12/28/2022] Open
Abstract
Findings on the effect of whole-grain consumption on inflammatory biomarkers are conflicting. This study aimed to summarize available studies on the effects of whole-grain consumption on inflammatory biomarkers in adults. Online databases including PubMed, Scopus, ISI Web of Science, and Google Scholar were searched for relevant studies published up to January 2018, using relevant keywords. We included randomized controlled trials (RCTs) investigating the effect of whole-grain foods or diets high in whole-grain foods on markers of inflammation. Studies were selected if they had a control diet low in whole grains or diets without whole grains, whether calorie restricted or not. We did not include studies that examined the effect of individual grain components, including bran or germ, or fiber-based diets. Overall, 14 RCTs, with 1238 individuals aged ≥18 y, were included. Pooling 13 effect sizes from 11 RCTs on serum C-reactive protein (CRP) concentrations, we found no significant effect of whole-grain consumption on serum CRP concentrations [weighted mean difference (WMD): -0.29 mg/L; 95% CI: -1.10, 0.52 mg/L]. However, the beneficial effects of whole-grain intake on serum CRP concentrations were observed in studies in individuals with elevated serum concentrations of CRP and studies with isocaloric diets. Combining 11 effect sizes from 10 RCTs, we found no significant effect of whole-grain consumption on serum IL-6 concentrations (WMD: -0.08 pg/mL; 95% CI: -0.27, 0.11 pg/mL). Nevertheless, we observed a significant effect of whole-grain consumption on serum IL-6 concentrations in studies in unhealthy individuals. A nonsignificant effect of whole-grain intake on circulating serum TNF-α concentrations was also seen when we summarized effect sizes from 7 RCTs (WMD: -0.06 pg/mL; 95% CI: -0.25, 0.14 pg/mL). Such a nonsignificant effect was observed for serum concentrations of plasminogen activator inhibitor-1 (PAI-1) (WMD: -3.59; 95% CI: -1.25, 8.44 kU/L). Unlike observational studies, we found no significant effect of whole-grain consumption on serum concentrations of inflammatory cytokines, including serum concentrations of CRP, IL-6, TNF-α, and PAI-1. However, beneficial effects of whole grains were found in some subgroups. Given the high between-study heterogeneity, deriving firm conclusions is difficult.
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Affiliation(s)
- Sepideh Rahmani
- Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Omid Sadeghi
- Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Sadeghian
- Department of Nutrition, School of Paramedicine, Ahvaz Jundishapur University of Medical Science, Ahvaz, Iran
| | - Narges Sadeghi
- Department of Nutrition, School of Paramedicine, Ahvaz Jundishapur University of Medical Science, Ahvaz, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Esmaillzadeh
- Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.,Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
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Plaz Torres MC, Aghemo A, Lleo A, Bodini G, Furnari M, Marabotto E, Miele L, Giannini EG. Mediterranean Diet and NAFLD: What We Know and Questions That Still Need to Be Answered. Nutrients 2019; 11:2971. [PMID: 31817398 PMCID: PMC6949938 DOI: 10.3390/nu11122971] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 11/28/2019] [Accepted: 11/30/2019] [Indexed: 12/16/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the hepatic manifestation of metabolic syndrome and is expected to become the leading cause of end-stage liver disease worldwide over the next few decades. In fact, NAFLD encompasses different clinical scenarios, from the simple accumulation of fat (steatosis) to steatohepatitis (NASH), NASH-cirrhosis, and cirrhosis complications. In this context, it is fundamental to pursue strategies aimed at both preventing the disease and reducing the progression of liver fibrosis once liver damage is already initiated. As of today, no pharmacological treatment has been approved for NAFLD/NASH, and the only recommended treatment of proven efficacy are life-style modifications, including diet and physical exercise pointing at weight loss of 5%-7%. Different dietetic approaches have been proposed in this setting, and in this review, we will discuss the evidence regarding the efficacy of the Mediterranean Diet as a treatment for NAFLD. In particular, we will report the effects on liver-related outcomes.
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Affiliation(s)
- Maria Corina Plaz Torres
- Cattedra di Gastroenterologia, Dipartimento di Medicina Interna, Università degli Studi di Genova, 16132 Genova, Italy
- Programma Dipartimentale Diagnosi e Terapia delle Malattie Emergenti dell’Apparato Digerente, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy
- Divisione di Medicine Interna ed Epatologia, Humanitas Clinical and Research Center-IRCCS, 20089 Rozzano, Italy
| | - Alessio Aghemo
- Divisione di Medicine Interna ed Epatologia, Humanitas Clinical and Research Center-IRCCS, 20089 Rozzano, Italy
- Dipartimento di Scienze Biomediche, Humanitas University, 20090 Pieve Emanuele, Italy
| | - Ana Lleo
- Divisione di Medicine Interna ed Epatologia, Humanitas Clinical and Research Center-IRCCS, 20089 Rozzano, Italy
- Dipartimento di Scienze Biomediche, Humanitas University, 20090 Pieve Emanuele, Italy
| | - Giorgia Bodini
- Cattedra di Gastroenterologia, Dipartimento di Medicina Interna, Università degli Studi di Genova, 16132 Genova, Italy
- Programma Dipartimentale Diagnosi e Terapia delle Malattie Emergenti dell’Apparato Digerente, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy
- Divisione di Medicine Interna ed Epatologia, Humanitas Clinical and Research Center-IRCCS, 20089 Rozzano, Italy
| | - Manuele Furnari
- Cattedra di Gastroenterologia, Dipartimento di Medicina Interna, Università degli Studi di Genova, 16132 Genova, Italy
| | - Elisa Marabotto
- Cattedra di Gastroenterologia, Dipartimento di Medicina Interna, Università degli Studi di Genova, 16132 Genova, Italy
| | - Luca Miele
- Area Medicina Interna, Gastroenterologia e Medicina Interna, Fondazione Policlinico Gemelli IRCCS, Università Cattolica del Sacro Cuore, 20123 Roma, Italy
| | - Edoardo G. Giannini
- Cattedra di Gastroenterologia, Dipartimento di Medicina Interna, Università degli Studi di Genova, 16132 Genova, Italy
- Programma Dipartimentale Diagnosi e Terapia delle Malattie Emergenti dell’Apparato Digerente, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy
- Gastroenterology Unit, Department of Internal Medicine, University of Genoa, Viale Benedetto XV, no.6, 16132 Genoa, Italy
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Landberg R, Hanhineva K, Tuohy K, Garcia-Aloy M, Biskup I, Llorach R, Yin X, Brennan L, Kolehmainen M. Biomarkers of cereal food intake. GENES AND NUTRITION 2019; 14:28. [PMID: 31632507 PMCID: PMC6790055 DOI: 10.1186/s12263-019-0651-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Accepted: 08/14/2019] [Indexed: 02/06/2023]
Abstract
Background/objectives Cereal foods are major contributors to the daily energy, protein, and dietary fiber intake all over the world. The role of cereals in human health is dependent on whether they are consumed as refined or whole grain and on cereal species. To unravel the underlying mechanisms of health effects attributed to specific cereal foods and to provide more precise dietary advice, there is a need for improved dietary assessment of whole-grain intake. Dietary biomarkers of specific cereals, different fractions or cereal-containing foods could offer such a possibility. The aim of this review was to summarize the current status on biomarkers of different cereals, fractions, and specific cereal foods. Subjects and methods A literature review was conducted and putative biomarkers of different cereals and pseudo-cereals (wheat, oats, rye, barley, rice, and quinoa) as well as for different grain fractions (whole grain, refined grain, bran) and foods were summarized and discussed. Results Several putative biomarkers have been suggested for different cereals, due to their unique presence in these grains. Among the biomarkers, odd-numbered alkylresorcinols are the most well-studied and -evaluated biomarkers and reflect whole-grain wheat and rye intake. Even-numbered alkylresorcinols have been suggested to reflect quinoa intake. Recent studies have also highlighted the potential of avenanthramides and avenacosides as specific biomarkers of oat intake, and a set of biomarkers have been suggested to reflect rice bran intake. However, there are yet no specific biomarkers of refined grains. Most biomarker candidates remain to be evaluated in controlled interventions and free-living populations before applied as biomarkers of intake in food and health studies. Conclusion Several putative biomarkers of different cereals have been suggested and should be validated in human studies using recently developed food intake biomarker validation criteria.
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Affiliation(s)
- Rikard Landberg
- 1Department of Biology and Biological Engineering, Division of Food and Nutrition Science, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
| | - Kati Hanhineva
- 2Institute of Public Health and Clinical Nutrition, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Kieran Tuohy
- 3Nutrition and Nutrigenomics Unit, Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, 38010 Trento, Italy
| | - Mar Garcia-Aloy
- 4Biomarkers and Nutrimetabolomic Laboratory, Department of Nutrition, Food Sciences and Gastronomy, Food Technology Reference Net (XaRTA), Nutrition and Food Safety Research Institute (INSA-UB), Faculty of Pharmacy and Food Sciences, Campus Torribera, University of Barcelona, Barcelona, Spain.,5CIBER de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Barcelona, Spain
| | - Izabela Biskup
- 1Department of Biology and Biological Engineering, Division of Food and Nutrition Science, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
| | - Rafael Llorach
- 4Biomarkers and Nutrimetabolomic Laboratory, Department of Nutrition, Food Sciences and Gastronomy, Food Technology Reference Net (XaRTA), Nutrition and Food Safety Research Institute (INSA-UB), Faculty of Pharmacy and Food Sciences, Campus Torribera, University of Barcelona, Barcelona, Spain.,5CIBER de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Barcelona, Spain
| | - Xiaofei Yin
- UCD School of Agriculture and Food Science, Institute of Food and Health, Belfield, Dublin 4, Ireland
| | - Lorraine Brennan
- UCD School of Agriculture and Food Science, Institute of Food and Health, Belfield, Dublin 4, Ireland
| | - Marjukka Kolehmainen
- 2Institute of Public Health and Clinical Nutrition, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
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Jefferson A, Adolphus K. The Effects of Intact Cereal Grain Fibers, Including Wheat Bran on the Gut Microbiota Composition of Healthy Adults: A Systematic Review. Front Nutr 2019; 6:33. [PMID: 30984765 PMCID: PMC6449473 DOI: 10.3389/fnut.2019.00033] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 03/07/2019] [Indexed: 12/14/2022] Open
Abstract
The human microbiota is increasingly recognized as a major factor influencing health and well-being, with potential benefits as diverse as improved immunity, reduced risk of obesity, Type 2 diabetes, and improved cognition and mood. Bacteria inhabiting the gut are dependent on the provision of fermentable dietary substrates making diet a major factor driving the composition of the human gut microbiota. Dietary fiber may modify microbiota abundance, diversity, and metabolism including short-chain fatty acid production. The majority of research to date has explored isolated fibers, and the influence of habitual fiber consumption is less well-established. The aim of the current article was to systematically review evidence from human intervention studies for the effects of intact cereal fibers, and their active sub-fractions, on gut microbiota composition in healthy adults. Studies published in the past 20 years were identified through the PubMed and Cochrane electronic databases. Inclusion criteria were: healthy adult participants (>18 years), inclusion of at least one intact cereal fiber, or its sub-fraction, and measurement of fecal microbiota related outcomes. As every individual has a unique microbiota many trials utilized a cross-over design where individuals acted as their own control. Outcome measures included change to the microbiota, species diversity, or species abundance, or metabolic indicators of microbiota fermentation such as short chain fatty acids or fecal nitrogen. Two hundred and twenty three publications were identified and 40 included in the final review. In discussing the findings, particular attention has been paid to the effects of wheat fiber, bran, and arabinoxylans (AXOS) as this is the dominant source of fiber in many Western countries. Thirty-nine of the forty-two studies demonstrated an increase in microbiota diversity and/or abundance following intact cereal fiber consumption, with effects apparent from 24 h to 52 weeks. Increases in wheat fiber as low as 6–8 g were sufficient to generate significant effects. Study duration ranged from 1 day to 12 weeks, with a single study over 1 year, and exploration of the stability of the microbiota following long-term dietary change is required. Increasing cereal fiber consumption should be encouraged for overall good health and for gut microbiota diversity.
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Long-Term Whole Grain Wheat and Rye Intake Reflected by Adipose Tissue Alkylresorcinols and Breast Cancer: A Case-Cohort Study. Nutrients 2019; 11:nu11020465. [PMID: 30813337 PMCID: PMC6412439 DOI: 10.3390/nu11020465] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 02/15/2019] [Accepted: 02/18/2019] [Indexed: 12/30/2022] Open
Abstract
Whole grain rye (WGR) and whole grain wheat (WGW) have been suggested to protect against the development of breast cancer. In this study, we estimated long-term intake of WGR and WGW, using both a food frequency questionnaire (FFQ) and alkylresorcinol concentrations in adipose tissue biopsies, in relation to the risk of developing invasive breast cancer in a case-cohort study (n = 414 in the case group, n = 933 in the subcohort group) on the Danish “Diet, Cancer and Health” cohort. The median follow-up time of the subcohort was 5.3 years. Total WGR and WGW intake estimated with FFQ or reflected by total alkylresorcinol concentration in adipose tissue was not significantly associated with risk of breast cancer. However, after adjustment for total WGR and WGW intake, women in the highest quartile of relative WGR intake, reflected by the alkylresorcinol C17:0/C21:0 ratio, had a higher risk of overall breast cancer and estrogen-receptor-positive (ER+) breast cancer than women in the lowest quartile of relative WGR intake, while the risk of estrogen-receptor-negative (ER-) breast cancer incidence was unaffected. Similar results were obtained with the FFQ data. Based on these data, further investigation of the role of specific grain types in reducing or increasing breast cancer risk, and their overall impact on health, is warranted.
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Pentikäinen S, Koistinen V, Kolehmainen M, Poutanen K, Hanhineva K, Aura AM. Mastication-induced release of compounds from rye and wheat breads to saliva. Food Chem 2019; 270:502-508. [DOI: 10.1016/j.foodchem.2018.07.110] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/28/2018] [Accepted: 07/17/2018] [Indexed: 12/11/2022]
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Gong L, Chi H, Wang J, Zhang H, Sun B. In vitro fermentabilities of whole wheat as compared with refined wheat in different cultivars. J Funct Foods 2019. [DOI: 10.1016/j.jff.2018.11.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
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45
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Abstract
Overweight-related metabolic diseases are an important threat to health in the Western world. Dietary habits are one of the main causative factors for metabolic syndrome, CVD and type 2 diabetes. The human gut microbiota is emerging as an important player in the interaction between diet and metabolic health. Gut microbial communities contribute to human metabolism through fermentation of dietary fibre and the result of intestinal saccharolytic fermentation is production of SCFA. Acetate, propionate and butyrate positively influence satiety, endocrine system, glucose homeostasis, adipogenesis, lipid oxidation, thermoregulation, hepatic gluconeogenesis, endothelial function and gut barrier integrity, and these mechanisms have all been linked to protection from type 2 diabetes, hypertension and cardiovascular health. The gut microbiota is also involved in bile acid metabolism and regulating their cell signalling potential, which has also been shown to modify pathways involved in metabolic health. Similarly, the gut microbiota renders recalcitrant plant polyphenols into biologically active small phenolic compounds which then act systemically to reduce metabolic disease risk. This review summarises how dietary patterns, specific foods and a healthy lifestyle may modulate metabolic health through the gut microbiota and their molecular cross-talk with the host.
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Kärkkäinen O, Lankinen MA, Vitale M, Jokkala J, Leppänen J, Koistinen V, Lehtonen M, Giacco R, Rosa-Sibakov N, Micard V, Rivellese AAA, Schwab U, Mykkänen H, Uusitupa M, Kolehmainen M, Riccardi G, Poutanen K, Auriola S, Hanhineva K. Diets rich in whole grains increase betainized compounds associated with glucose metabolism. Am J Clin Nutr 2018; 108:971-979. [PMID: 30256894 DOI: 10.1093/ajcn/nqy169] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 06/22/2018] [Indexed: 12/30/2022] Open
Abstract
Background Epidemiologic evidence suggests that diets rich in whole grains are associated with a reduced risk of developing chronic diseases and all-cause mortality. However, the molecular mechanisms behind these beneficial metabolic effects are poorly understood. Objective Our aim was to investigate novel trimethylated (betainized) compounds from mice and humans, and their association with whole grain-rich diets and insulin resistance and insulin secretion. Design Fasting plasma samples were obtained in a mouse (C57BL/6J male) feeding trial and a controlled dietary intervention. The mouse trial involved feeding the mice a rye and wheat bran-enriched feed which was compared with a high-fat diet. In the human trial, participants recruited from Kuopio, Finland (n = 69) and Naples, Italy (n = 54) with characteristics of the metabolic syndrome were randomly assigned to either a whole grain-enriched diet or a control diet for 12 wk. Plasma concentrations of betainized compounds were analyzed with the use of liquid chromatography-tandem mass spectrometry. Insulin resistance and insulin secretion were assessed in an oral-glucose-tolerance test and a meal-glucose-tolerance test. Results The betaines that were increased in mouse plasma after bran-enriched feeding were identified de novo via chemical synthesis and liquid chromatography-tandem mass spectrometry, and confirmed to be associated with an increased intake of whole-grain products in humans. In particular, the concentrations of pipecolic acid betaine were increased at the end of the whole-grain intervention in both the Kuopio cohort (P < 0.001) and the Naples cohort (P < 0.05), and these concentrations inversely correlated with the postprandial glucose concentration. Furthermore, the concentration of valine betaine was substantially increased during the intervention in Naples (P < 0.001) with an inverse correlation with the postprandial insulin concentration. In addition, the concentrations of other betaines, e.g., glycine betaine and proline betaine, correlated with glucose and insulin concentrations at the end of the intervention. Conclusions Novel betainized compounds in humans are associated with diets rich in whole grains, and they improve insulin resistance and insulin secretion. These results suggest that these novel compounds may contribute to the beneficial effects of whole grain-rich diets. The studies were registered at clinicaltrials.gov as NCT00945854 (Naples) and NCT00573781 (Kuopio).
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Affiliation(s)
| | | | - Marilena Vitale
- Department of Clinical Medicine and Surgery, Federico II University of Naples, Naples, Italy
| | | | - Jukka Leppänen
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland
| | | | - Marko Lehtonen
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland.,LC-MS Metabolomics Center, Biocenter Kuopio, Kuopio, Finland
| | - Rosalba Giacco
- Institute of Food Science, National Research Council, Avellino, Italy
| | - Natalia Rosa-Sibakov
- VTT Technical Research Centre of Finland Ltd, Espoo, Finland.,Joint Research Unit 1208, Agropolymers and Emerging Technologies (IATE), Montpellier SupAgro-INRA-UM-CIRAD, Montpellier, France
| | - Valérie Micard
- Joint Research Unit 1208, Agropolymers and Emerging Technologies (IATE), Montpellier SupAgro-INRA-UM-CIRAD, Montpellier, France
| | - Angela A A Rivellese
- Department of Clinical Medicine and Surgery, Federico II University of Naples, Naples, Italy
| | - Ursula Schwab
- Institute of Public Health and Clinical Nutrition.,Institute of Clinical Medicine, Internal Medicine, Kuopio University Hospital, Kuopio, Finland
| | | | | | | | - Gabriele Riccardi
- Department of Clinical Medicine and Surgery, Federico II University of Naples, Naples, Italy
| | - Kaisa Poutanen
- Institute of Public Health and Clinical Nutrition.,VTT Technical Research Centre of Finland Ltd, Espoo, Finland
| | - Seppo Auriola
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland
| | - Kati Hanhineva
- Institute of Public Health and Clinical Nutrition.,LC-MS Metabolomics Center, Biocenter Kuopio, Kuopio, Finland
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47
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Qi-Deficiency Related Increases in Disease Susceptibility Are Potentially Mediated by the Intestinal Microbiota. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:1304397. [PMID: 30425748 PMCID: PMC6218746 DOI: 10.1155/2018/1304397] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Accepted: 10/02/2018] [Indexed: 12/24/2022]
Abstract
Qi-deficiency (QX) is thought to promote the body's susceptibility to disease, but the underlying mechanism through which this occurs is not clear. We surveyed the traditional Chinese medicine constitution (TCMC) of healthy college students to identify those that were PH (balanced TCMC constitution) and QX (unbalanced TCMC constitution). We then used high-throughput sequencing of the 16SrRNA V3-4 region in fecal microbiota samples to identify differences between those obtained from PH and QX individuals. Our results demonstrated that the alpha diversity of QX samples was significantly lower than that of PH samples (p < 0.05) and that beta diversity was remarkably different in QX and PH samples. Four and 122 bacterial taxa were significantly overrepresented in QX and PH groups, respectively. The genera Sphingobium, Clostridium, and Comamonas were enriched in the QX group and had a certain pathogenic role. The QX group also showed a statistically significant lack of probiotics and anti-inflammatory bacteria such as Bifidobacterium and Bdellovibrio. The functional potential of QX bacterial taxa was reduced in fatty acid metabolism and butanoate metabolism. We contend that the imbalanced intestinal microbiota in QX and the following functional changes in metabolism influence immunity and energy metabolism, which could increase susceptibility to disease.
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48
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Hajihashemi P, Haghighatdoost F. Effects of Whole-Grain Consumption on Selected Biomarkers of Systematic Inflammation: A Systematic Review and Meta-analysis of Randomized Controlled Trials. J Am Coll Nutr 2018; 38:275-285. [PMID: 30183552 DOI: 10.1080/07315724.2018.1490935] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Whole grains have potential benefits in preventing cardiovascular diseases and diabetes; nevertheless, results from randomized clinical trials (RCTs) on inflammatory markers are controversial. The aim of this meta-analysis of RCTs was to examine the effect of whole grains on inflammatory markers A systematic literature search was conducted by using the online database of PubMed, Embase, Google Scholar, and Scopus for relevant studies up to November 2017, using Medical Subject Headings and other related keywords. Only studies that compared the effects of whole grains on inflammatory markers with refined grains were included. From more than 2278 articles, 17 RCTs met the inclusion criteria and were systematically reviewed. Weighted mean differences were estimated and pooled effect size was calculated by random effects model. Thirteen RCTs with 466 participants were included in the meta-analysis. Whole-grain consumption had a significant effect on serum concentration of high-sensitivity C-reactive protein (hs-CRP; Hedges' g: -0.22; 95% confidence interval (CI): -0.45, 0.00; p = 0.047), interleukin-6 (IL-6; -0.28 pg/mL; 95% CI: -0.55, -0.02; p = 0.037) but did not result in a significant decline in serum concentration of tumor necrosis factor alpha (TNF-α; -0.12 pg/mL; 95% CI: -0.39, 0.15; p = 0.396). Significant heterogeneity was observed between studies for hs-CRP (I2 = 69.0%, p < 0.0001), IL-6 (I2 = 96.6%, p < 0.001), and TNF-α (I2 = 95.4%, p < 0.001). In sensitivity analysis, the effect of whole grain intake on hs-CRP, IL-6, and TNF-α was not substantially modified by the result of a single study. Meta-regression for duration showed no significant association between the duration of study and changes in serum C-reactive protein levels (β coefficient = 0.006, standard error = 0.036; p = 0.870). Conclusions: This meta-analysis of RCTs suggested that whole grains might affect health status via improving systematic inflammation. Key teaching points: We conducted a systematic review and meta-analysis of randomized controlled trials. Whole grains consumption was associated with lower serum levels of hs-CRP and IL-6. Whole grains cannot significantly decrease serum levels of TNF-α. We could not found any source for heterogeneity. The effect of whole grains on serum inflammatory biomarkers was independent from duration.
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Affiliation(s)
- Parisa Hajihashemi
- a Food Security Research Center , Isfahan University of Medical Sciences , Isfahan , Iran.,b Department of Community Nutrition , School of Nutrition and Food Science, Isfahan University of Medical Sciences , Isfahan , Iran.,c Students' Research Committee , Isfahan University of Medical Sciences , Isfahan , Iran
| | - Fahimeh Haghighatdoost
- a Food Security Research Center , Isfahan University of Medical Sciences , Isfahan , Iran.,b Department of Community Nutrition , School of Nutrition and Food Science, Isfahan University of Medical Sciences , Isfahan , Iran
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49
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Meng H, Matthan NR, Fried SK, Berciano S, Walker ME, Galluccio JM, Lichtenstein AH. Effect of Dietary Carbohydrate Type on Serum Cardiometabolic Risk Indicators and Adipose Tissue Inflammatory Markers. J Clin Endocrinol Metab 2018; 103:3430-3438. [PMID: 29982704 PMCID: PMC6126885 DOI: 10.1210/jc.2018-00667] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 06/18/2018] [Indexed: 12/14/2022]
Abstract
Context and Objective Direct comparisons between types of dietary carbohydrate in terms of cardiometabolic risk indicators are limited. This study was designed to compare the effects of an isocaloric exchange of simple, refined, and unrefined carbohydrates on serum cardiometabolic risk indicators, adipose tissue inflammatory markers, and peripheral blood mononuclear cell (PBMC) fractional cholesterol efflux. Design, Participants, and Measures Participants [postmenopausal women and men (N = 11), 65 ± 8 years, body mass index 29.8 ± 3.2 kg/m2, low-density lipoprotein (LDL) cholesterol ≥2.6 mmol/L] were provided with diets (60% energy from total carbohydrate, 15% from protein, 25% from fat) for 4.5 weeks in a randomized crossover design, with 2-week washout periods. The variable component was an isocaloric exchange of simple, refined, or unrefined carbohydrate-containing foods. Serum lipoprotein, glucose, insulin, and inflammatory marker concentrations were measured. Abdominal subcutaneous adipose tissue was aspirated to assess macrophage and inflammatory marker gene expression and ex vivo cytokine secretion, and PBMCs were isolated to assess ex vivo fractional cholesterol efflux. Results Fasting serum LDL and non-high-density lipoprotein (HDL) cholesterol concentrations were higher after the refined compared with simple or unrefined carbohydrate-enriched diets (P < 0.01). Other serum measures, ex vivo fractional cholesterol efflux and adipose tissue gene expression and ex vivo cytokine secretion, were similar between diets. Conclusions Diets enriched in refined compared with simple or unrefined carbohydrate resulted in higher fasting serum LDL and non-HDL cholesterol concentrations but had little effect on other cardiometabolic risk indicators. This small study raises the intriguing possibility that refined carbohydrate may have unique adverse effects on cardiometabolic risk indicators distinct from simple and unrefined carbohydrate.
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Affiliation(s)
- Huicui Meng
- Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts
| | - Nirupa R Matthan
- Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts
| | - Susan K Fried
- Icahn School of Medicine at Mount Sinai, New York, New York
| | - Silvia Berciano
- Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts
| | - Maura E Walker
- Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts
| | - Jean M Galluccio
- Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts
| | - Alice H Lichtenstein
- Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts
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50
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Zaslavsky O, Zelber-Sagi S, Shikany JM, Orchard T, Wallace R, Snetselaar L, Tinker L. Anatomy of the Mediterranean Diet and Mortality Among Older Women with Frailty. J Nutr Gerontol Geriatr 2018; 37:269-281. [PMID: 30118645 DOI: 10.1080/21551197.2018.1496217] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
We examined individual components of the Mediterranean Diet (Med) and evaluated their relative contribution to mortality rates in older women with frailty. A sample (N = 10,431) included Women's Health Initiative Observational Study participants aged 65-84 y with complete frailty diagnostic criteria and dietary data. Frailty was assessed with modified Fried's criteria, and dietary data were collected through food frequency questionnaire. Over a mean follow-up of 12.4 y (range 3-21.0), 3,259 (31.2%) deaths occurred. Crude death rates demonstrated a decrease in mortality with higher intake of individual Med components. However, in the mutually adjusted models, most Med components on their own were not significantly associated with mortality. Exceptions were vegetables, nuts, and whole grains. A higher intake of vegetables, nuts, and whole grains were associated with a significantly decreased hazard of mortality, by 9% (P = 0.02), 13% (P < 0.001), and 17% (P < 0.001), respectively. The relative contribution of these components to diet mortality associations were 21%, 42%, and 57% for vegetables, nuts, and whole grains, respectively. Subgroup analyses by chronic morbidity, smoking status, or excluding women with early death did not substantially change these results.
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Affiliation(s)
- Oleg Zaslavsky
- a School of Nursing , University of Washington , Seattle , Washington, USA
| | - Shira Zelber-Sagi
- b Faculty of Health Science and Social Welfare , University of Haifa , Haifa , Israel
| | - James M Shikany
- c Division of Preventive Medicine , University of Alabama , Birmingham , Alabama , USA
| | - Tonya Orchard
- d College of Education and Human Ecology , Ohio State University , Columbus , Ohio USA
| | - Robert Wallace
- e College of Public Health , University of Iowa , Iowa City , Iowa , USA
| | - Linda Snetselaar
- e College of Public Health , University of Iowa , Iowa City , Iowa , USA
| | - Lesley Tinker
- f Public Health Sciences , Fred Hutchinson Cancer Research Center , Seattle , Washington , USA
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