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Chinese Guidelines for Medical Nutrition Therapy for Patients with Diabetes (2022 Edition). Asia Pac J Clin Nutr 2024; 33:118-152. [PMID: 38794974 PMCID: PMC11170023 DOI: 10.6133/apjcn.202406_33(2).0001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Accepted: 05/05/2024] [Indexed: 05/27/2024]
Abstract
Medical nutrition therapy (MNT) is the foundation of the comprehensive treatment of patients with diabetes. In 2010, the Chinese Clinical Nutritionist Center of the Chinese Medical Doctor Association developed the first Chinese guideline on MNT for patients with diabetes, and it was updated in 2015. Since then, new evidence has emerged in the field of MNT and metabolic therapy in patients with diabetes. The Nutrition and Metabolic Management Branch of the China International Exchange and Promotive Association for Medical and Health Care organized a team of experts from related institutions, including the Clinical Nutrition Branch of the Chinese Nutrition Society, Chinese Diabetes Society, Chinese Society for Parenteral and Enteral Nutri-tion, and Chinese Clinical Nutritionist Center of the Chinese Medical Doctor Association. Their task was to develop the Chinese Guidelines of Medical Nutrition Therapy in Diabetes (2022 Edition) in accordance with the requirements of the Guidelines for the Formulation/Revision of Clinical Guidelines in China (2022 Edition) by combining the questions raised and evidence gathered in clinical practices in China, to guide and standardize the clinical MNT.
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Nitzke D, Czermainski J, Rosa C, Coghetto C, Fernandes SA, Carteri RB. Increasing dietary fiber intake for type 2 diabetes mellitus management: A systematic review. World J Diabetes 2024; 15:1001-1010. [PMID: 38766430 PMCID: PMC11099360 DOI: 10.4239/wjd.v15.i5.1001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/19/2024] [Accepted: 03/20/2024] [Indexed: 05/10/2024] Open
Abstract
BACKGROUND Type 2 diabetes is a chronic, non-communicable disease with a substantial global impact, affecting a significant number of individuals. Its etiology is closely tied to imbalanced dietary practices and sedentary lifestyles. Conversely, increasing die-tary fiber (DF) intake has consistently demonstrated health benefits in numerous studies, including improvements in glycemic control and weight management. AIM To investigate the efficacy of DF interventions in the management of type 2 diabetes mellitus (T2DM). METHODS A systematic literature review was conducted to explore the association between DF intake and the management of T2DM. Following the inclusion and exclusion criteria, a total of 26 studies were included in this review. RESULTS The main strategies implied to increased DF intake were: High DF diet plus acarbose (2 studies); DF supplements (14 studies); and high DF diets (10 studies). Overall, most studies indicated that increased DF intake resulted in im-provements in glycemic control and weight management in T2DM patients. CONCLUSION DF represents a valuable strategy in the treatment of type 2 diabetes, improving health outcomes. DF intake offers the potential to improve quality of life and reduce complications and mortality associated with diabetes. Likewise, through supplements or enriched foods, DF contributes significantly to the control of several markers such as HbA1c, blood glucose, triglycerides, low-density lipoprotein, and body weight.
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Affiliation(s)
- Douglas Nitzke
- Department of Nutrition, Centro Universitário CESUCA, Cachoeirinha 94935-630, Brazil
| | - Juliana Czermainski
- Department of Hepatology, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre 90430-080, Brazil
| | - Carolina Rosa
- Department of Nutrition, Centro Universitário CESUCA, Cachoeirinha 94935-630, Brazil
| | - Chaline Coghetto
- Department of Nutrition, Centro Universitário CESUCA, Cachoeirinha 94935-630, Brazil
| | - Sabrina Alves Fernandes
- Postgraduate Program in Hepatology, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre 90050-170, Brazil
| | - Randhall B Carteri
- Department of Nutrition, Centro Universitário CESUCA, Cachoeirinha 94935-630, Brazil
- Postgraduate Program in Hepatology, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre 90050-170, Brazil
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Magi CE, Rasero L, Mannucci E, Bonaccorsi G, Ranaldi F, Pazzagli L, Faraoni P, Mulinacci N, Bambi S, Longobucco Y, Dicembrini I, Iovino P. Use of ancient grains for the management of diabetes mellitus: A systematic review and meta-analysis. Nutr Metab Cardiovasc Dis 2024; 34:1110-1128. [PMID: 38553358 DOI: 10.1016/j.numecd.2024.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 02/15/2024] [Accepted: 03/03/2024] [Indexed: 04/09/2024]
Abstract
AIMS A systematic review and meta-analysis of published randomized controlled trials was conducted to collate evidence from studies implementing ancient grains and investigate the impact of ancient grain consumption on health outcomes of patients with Diabetes Mellitus (DM). DATA SYNTHESIS Twenty-nine randomized controlled trials were included, and 13 were meta-analyzed. Interventions ranged from 1 day to 24 weeks; most samples were affected by DM type 2 (n = 28 studies) and the ancient grains used were oats (n = 10 studies), brown rice (n = 6 studies), buckwheat (n = 4 studies), chia (n = 3 studies), Job's Tears (n = 2 studies), and barley, Khorasan and millet (n = 1 study). Thirteen studies that used oats, brown rice, and chia provided data for a quantitative synthesis. Four studies using oats showed a small to moderate beneficial effect on health outcomes including LDL-c (n = 717, MD: 0.30 mmol/l, 95% CI: 0.42 to -0.17, Z = 4.61, p < 0.05, I2 = 0%), and TC (n = 717, MD: 0.44 mmol/l, 95% CI: 0.63 to -0.24, Z = 4.40, p < 0.05, I2 = 0%). Pooled analyses of studies using chia and millet did not show significant effects on selected outcomes. CONCLUSIONS For adults affected by DM type 2, the use of oats may improve lipidic profile. Further experimental designs are needed in interventional research to better understand the effects of ancient grains on diabetes health outcomes. PROSPERO REGISTRATION CRD42023422386.
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Affiliation(s)
| | - Laura Rasero
- Department of Health Sciences, University of Florence, Florence, Italy
| | - Edoardo Mannucci
- Diabetology and Metabolic Diseases, Careggi Teaching Hospital, Florence, Italy; Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | | | - Francesco Ranaldi
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Luigia Pazzagli
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Paola Faraoni
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Nadia Mulinacci
- Neurosciences, Psychology, Drug Research and Child Health, University of Florence, Florence, Italy
| | - Stefano Bambi
- Department of Health Sciences, University of Florence, Florence, Italy
| | - Yari Longobucco
- Department of Health Sciences, University of Florence, Florence, Italy
| | - Ilaria Dicembrini
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Paolo Iovino
- Department of Health Sciences, University of Florence, Florence, Italy
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Lin Z, Zhang X, Wu M, Ming Y, Wang X, Li H, Huang F, Gao F, Zhu Y. High-fiber diet and rope-skipping benefit cardiometabolic health and modulate gut microbiota in young adults: A randomized controlled trial. Food Res Int 2023; 173:113421. [PMID: 37803759 DOI: 10.1016/j.foodres.2023.113421] [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: 04/03/2023] [Revised: 08/27/2023] [Accepted: 08/29/2023] [Indexed: 10/08/2023]
Abstract
Previous studies have shown that high intake of dietary fiber (DF) and efficient levels of physical activity are beneficial for cardiometabolic health in middle-aged and elderly populations with cardiometabolic disease. However, evidence from young adults with low cardiometabolic risk is lacking. This study aimed to investigate the effects of various interventions including a high-fiber (HF) diet and the rope-skipping (RS) exercise on cardiometabolic risk factors (CRFs) and the composition of the gut microbiota in young adults. A 12-week parallel-designed randomized controlled trial was conducted in undergraduates (n = 96), who were randomly assigned to the HF group (≥20 g/d DF), the RS group (2000 jumps/week), and the control (CON) group. Among the 84 people who completed the trial, measurements of anthropometric characteristics, biochemical parameters, and gut microbiota were taken at the beginning and end of the intervention. After the intervention, the RS exercise led to a significant decrease in the heart rate and triglyceride levels compared to the CON group (all P < 0.05), but there was no significant difference in CRFs between the HF and CON groups. When compared to baseline, the 12-week HF diet intervention resulted in an increase in fat-free mass, and a decrease in the percentage of body fat and waist circumference (all P < 0.05). With regard to gut microbiota alterations after intervention, we found that compared with the CON group, the relative abundance of Lactobacillus decreased significantly in both the HF group and the RS group, Muribaculaceae decreased in the RS group, and Eubacterium_coprostanoligenes_group decreased in the HF group (all P < 0.05). Finally, shifts in 7 metabolic pathways were detected in the RS group using predictive functional profiling, while only one pathway was altered in the HF group (all P < 0.05). In conclusion, the RS exercise improved body composition compared to the CON group in young adults, while the HF diet just enhanced CRFs in contrast to baseline. Furthermore, both RS and HF interventions altered Lactobacillus and various other gut microbiota. The results indicated that the HF diet and RS exercise could partly benefit cardiometabolic health and modulate gut microbiota in young adults. Trial registration: ClinicalTrials.gov, NCT04834687.
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Affiliation(s)
- Zongyu Lin
- Department of Maternal and Child Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Xin Zhang
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518000, China
| | - Miao Wu
- Department of Maternal and Child Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Yingan Ming
- Department of Physical Education, Sun Yat-sen University, Guangzhou 510080, China
| | - Xiaotong Wang
- Department of Maternal and Child Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Hailin Li
- Department of Maternal and Child Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Fenglian Huang
- Department of Maternal and Child Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Fei Gao
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518000, China
| | - Yanna Zhu
- Department of Maternal and Child Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangzhou 510080, China.
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Li L, Zhang R, Hu Y, Deng H, Pei X, Liu F, Chen C. Impact of Oat ( Avena sativa L.) on Metabolic Syndrome and Potential Physiological Mechanisms of Action: A Current Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:14838-14852. [PMID: 37797345 DOI: 10.1021/acs.jafc.3c02304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
Oat (Avena sativa L.), an annual herbaceous plant belonging to the Gramineae family, is widely grown in various regions including EU, Canada, America, Australia, etc. Due to the nutritional and pharmacological values, oats have been developed into various functional food including fermented beverage, noodle, cookie, etc. Meanwhile, numerous studies have demonstrated that oats may effectively improve metabolic syndrome, such as dyslipidemia, hyperglycemia, atherosclerosis, hypertension, and obesity. However, the systematic pharmacological mechanisms of oats on metabolic syndrome have not been fully revealed. Therefore, in order to fully explore the benefits of oat in food industry and clinic, this review aims to provide up-to-date information on oat and its constituents, focusing on the effects on metabolic syndrome.
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Affiliation(s)
- Lin Li
- Pharmacy College of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, People's Republic of China
| | - Ruiyuan Zhang
- Pharmacy College of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, People's Republic of China
| | - Yichen Hu
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering & Technology Research Center of Coarse Cereal Industralization, School of Food and Biological Engineering, Chengdu University, Chengdu 610106, Sichuan People's Republic of China
| | - Hongdan Deng
- Pharmacy College of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, People's Republic of China
| | - Xu Pei
- Pharmacy College of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, People's Republic of China
| | - Fang Liu
- Pharmacy College of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, People's Republic of China
| | - Chen Chen
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, St Lucia 4072, Brisbane, Australia
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Li L, Zhang R, Hu Y, Deng H, Pei X, Liu F, Chen C. Impact of Oat ( Avena sativa L.) on Metabolic Syndrome and Potential Physiological Mechanisms of Action: A Current Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:14838-14852. [DOI: https:/doi.org/10.1021/acs.jafc.3c02304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/14/2024]
Affiliation(s)
- Lin Li
- Pharmacy College of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People’s Republic of China
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, People’s Republic of China
| | - Ruiyuan Zhang
- Pharmacy College of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People’s Republic of China
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, People’s Republic of China
| | - Yichen Hu
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering & Technology Research Center of Coarse Cereal Industralization, School of Food and Biological Engineering, Chengdu University, Chengdu 610106, Sichuan People’s Republic of China
| | - Hongdan Deng
- Pharmacy College of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People’s Republic of China
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, People’s Republic of China
| | - Xu Pei
- Pharmacy College of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People’s Republic of China
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, People’s Republic of China
| | - Fang Liu
- Pharmacy College of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People’s Republic of China
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, People’s Republic of China
| | - Chen Chen
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, St Lucia 4072, Brisbane, Australia
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Amerizadeh A, Ghaheh HS, Vaseghi G, Farajzadegan Z, Asgary S. Effect of Oat (Avena sativa L.) Consumption on Lipid Profile With Focus on Triglycerides and High-density Lipoprotein Cholesterol (HDL-C): An Updated Systematic Review. Curr Probl Cardiol 2023; 48:101153. [PMID: 35192870 DOI: 10.1016/j.cpcardiol.2022.101153] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 02/16/2022] [Indexed: 11/26/2022]
Abstract
Hypercholesterolemia is a significant risk factor for heart disease. The soluble fiber in oat (Avena sativa L.), beta-glucan has been shown to significantly lower serum total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) levels but not triglycerides (TG) and high-density lipoprotein cholesterol (HDL-C) according to previous studies, reviews, and meta-analyses. However, the effect of oat consumption on the TG and HDL-C is controversial and has not been expanded enough. We did this review study to find out about the effect of oat on lipid profile especially TG and HDL-C more specifically and meticulously with their details. After searching PubMed, Web of Science, and Google scholar we included 17 studies in our review. Our results similar to other reviews showed that oat reduced the TC, VLDL, and LDL-C more significantly than TG. Of 17 included studies 6 studies reported reduction of TG level, and only 1 study reported HDL-C improvement followed by oat consumption. A more detailed review of studies that reported positive effects of oat/ beta-glucan consumption on TG showed that in healthy people with normal lipid profile oat intake might reduce TG effectively and also in overweight people/those with diabetes or metabolic syndrome if a higher amount of oat or/and longer duration applied. Consuming oat in conjunction with calorie-reducing diets or using it with DHA can cause a significant TG reduction. It may be concluded that, in addition to lowering TC and LDL-C, a considerable improvement in TG or HDL-C can be accomplished by adjusting factors such as oat consumption dose or consumption duration or utilizing oat in conjunction with a proper diet program. To conclude, more research on this topic is required.
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Affiliation(s)
- Atefeh Amerizadeh
- Department of Pharmaceutical Sciences, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hooria Seyedhosseini Ghaheh
- Department of Pharmaceutical Biotechnology, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Golnaz Vaseghi
- Applied Physiology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ziba Farajzadegan
- Community Medicine Department, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sedigheh Asgary
- Department of Pharmaceutical Sciences, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.
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Mohd Ariffin NA, Mohd Sopian M, Lee LK. Efficacy of multigrain supplementation in type 2 diabetes mellitus: A pilot study protocol for a randomized intervention trial. World J Diabetes 2023; 14:606-616. [PMID: 37273251 PMCID: PMC10236996 DOI: 10.4239/wjd.v14.i5.606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 03/02/2023] [Accepted: 04/10/2023] [Indexed: 05/15/2023] Open
Abstract
BACKGROUND Uncontrolled type 2 diabetes mellitus (T2DM) may lead to microvascular complications (nephropathy, retinopathy, and neuropathy) and cardiovascular diseases. The beta-glucan content in grains has the potential to improve insulin sensitivity, lowering postprandial glucose response and reducing inflammation degrees. A proper combination of grains not only satisfies human body’s need, but also provides essential and reasonable nutritional contents. However, no trial has been conducted to evaluate the roles of multigrain in T2DM.
AIM To determine the efficacy of multigrain supplementation among T2DM patients.
METHODS From October 2020 to June 2021, a total of 50 adults living with T2DM, who were receiving standard diabetes care at Day Care Clinic, were randomized into either a supplementation group or a control group. The supplementation group received twice daily 30 g multigrain supplement (equivalent to 3.4 g beta-glucan) with standard medication for 12 wk, while the control group was prescribed with standard medication. Parameters such as glycemic control (HbA1c, FPG, and HOMO-IR), cardiometabolic profile (lipid profile, renal function test, and liver function test), oxidative stress status, nutritional status, and quality of life (QoL) were assessed at two time points: Baseline and the end of the treatment period (week 12).
RESULTS The primary outcomes were the mean difference of glycated haemoglobin (%), fasting plasma glucose, and serum insulin as intervention effects. Secondary outcomes included the measurement of cardiometabolic profile, antioxidative and oxidative stress status, nutritional status indices, and QoL. Tertiary outcomes involved the determination of safety and tolerability, and supplementation compliance.
CONCLUSION The present clinical trial will reveal the effectiveness of multigrain supplementation among T2DM patients for the improvement of diabetes management.
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Affiliation(s)
- Nur Anis Mohd Ariffin
- Food Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Gelugor 11800, Pulau Pinang, Malaysia
| | - Mastura Mohd Sopian
- Oncology and Radiological Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam 13200, Pulau Pinang, Malaysia
| | - Lai Kuan Lee
- Food Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Gelugor 11800, Pulau Pinang, Malaysia
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Yang J, Xia Y, Sun Y, Guo Y, Shi Z, Cristina do Vale Moreira N, Zuo H, Hussain A. Effect of lifestyle intervention on HbA1c levels in overweight and obese adults with type 2 diabetes across ethnicities: A systematic review and meta-analysis of randomized controlled trials. Diabetes Res Clin Pract 2023; 199:110662. [PMID: 37028602 DOI: 10.1016/j.diabres.2023.110662] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 03/31/2023] [Indexed: 04/09/2023]
Abstract
AIMS Weight reduction is fundamental for the management and remission of diabetes. We aimed to assess ethnic differences in the effects of lifestyle weight-loss interventions on HbA1c levels in overweight or obese adults with type 2 diabetes mellitus (T2DM). METHODS We systematically searched PubMed/MEDLINE and Web of Science online databases up to 31 Dec 2022. Randomized controlled trials using lifestyle weight-loss interventions in overweight or obese adults with T2DM were selected. We performed subgroup analyses to explore the heterogeneity across different ethnicities (Asians, White/Caucasians, Black/Africans and Hispanics). A random effects model was applied to calculate weighted mean difference (WMD) with 95% confidence interval (CI). RESULTS Thirty studies including 7580 subjects from different ethnicities were identified according to the predefined inclusion and exclusion criteria. HbA1c levels were significantly reduced by lifestyle weight-loss intervention. Notably, a significantly beneficial effect on HbA1c was observed in White/Caucasians (WMD = -0.59, 95% CI: -0.90, -0.28, P < 0.001) and Asians (WMD = -0.48, 95% CI: -0.63, -0.33, P < 0.001), but not in the Black/African or Hispanic group (both P > 0.05). The findings remained essentially unchanged in the sensitivity analysis. CONCLUSIONS Lifestyle weight-loss interventions had distinct beneficial effects on HbA1c levels in different ethnic groups with T2DM, especially in Caucasians and Asians.
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Affiliation(s)
- Jie Yang
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
| | - Yujia Xia
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
| | - Yanan Sun
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
| | - Yufei Guo
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
| | - Zumin Shi
- Department of Human Nutrition, College of Health Sciences, QU Health, Qatar University, Qatar
| | | | - Hui Zuo
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Suzhou Medical College of Soochow University, Suzhou, China.
| | - Akhtar Hussain
- Faculty of Health Sciences, NORD University, Bodø, Norway; Faculty of Medicine, Federal University of Ceará (FAMED-UFC), Brazil; International Diabetes Federation. 166 Chaussee de La Hulpe B-1170, Brussels, Belgium.
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10
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Chehab RF, Ferrara A, Zheng S, Barupal DK, Ngo AL, Chen L, Fiehn O, Zhu Y. In utero metabolomic signatures of refined grain intake and risk of gestational diabetes: A metabolome-wide association study. Am J Clin Nutr 2023; 117:731-740. [PMID: 36781127 PMCID: PMC10273195 DOI: 10.1016/j.ajcnut.2023.02.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 01/06/2023] [Accepted: 02/08/2023] [Indexed: 02/13/2023] Open
Abstract
BACKGROUND Epidemiologic evidence has linked refined grain intake to a higher risk of gestational diabetes (GDM), but the biological underpinnings remain unclear. OBJECTIVES We aimed to identify and validate refined grain-related metabolomic biomarkers for GDM risk. METHODS In a metabolome-wide association study of 91 cases with GDM and 180 matched controls without GDM (discovery set) nested in the prospective Pregnancy Environment and Lifestyle Study (PETALS), refined grain intake during preconception and early pregnancy and serum untargeted metabolomics were assessed at gestational weeks 10-13. We identified refined grain-related metabolites using multivariable linear regression and examined their prospective associations with GDM risk using conditional logistic regression. We further examined the predictivity of refined grain-related metabolites selected by least absolute shrinkage and selection operator regression in the discovery set and validation set (a random PETALS subsample of 38 individuals with and 336 without GDM). RESULTS Among 821 annotated serum (87.4% fasting) metabolites, 42 were associated with refined grain intake, of which 17 (70.6% in glycerolipids, glycerophospholipids, and sphingolipids clusters) were associated with subsequent GDM risk (all false discovery rate-adjusted P values <0.05). Adding 7 of 17 metabolites to a conventional risk factor-based prediction model increased the C-statistic for GDM risk in the discovery set from 0.71 (95% CI: 0.64, 0.77) to 0.77 (95% CI: 0.71, 0.83) and in the validation set from 0.77 (95% CI: 0.69, 0.86) to 0.81 (95% CI: 0.74, 0.89), both with P-for-difference <0.05. CONCLUSIONS Clusters of glycerolipids, glycerophospholipids, and sphingolipids may be implicated in the association between refined grain intake and GDM risk, as demonstrated by the significant associations of these metabolites with both refined grains and GDM risk and the incremental predictive value of these metabolites for GDM risk beyond the conventional risk factors. These findings provide evidence on the potential biological underpinnings linking refined grain intake to the risk of GDM and help identify novel disease-related dietary biomarkers to inform diet-related preventive strategies for GDM.
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Affiliation(s)
- Rana F Chehab
- Division of Research, Kaiser Permanente Northern California, Oakland, CA.
| | - Assiamira Ferrara
- Division of Research, Kaiser Permanente Northern California, Oakland, CA
| | - Siwen Zheng
- School of Public Health, University of California, Berkeley, CA
| | - Dinesh K Barupal
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, NY
| | - Amanda L Ngo
- Division of Research, Kaiser Permanente Northern California, Oakland, CA
| | - Liwei Chen
- Department of Epidemiology, University of California, Los Angeles, CA
| | - Oliver Fiehn
- West Coast Metabolomics Center, UC Davis Genome Center, University of California, Davis, CA
| | - Yeyi Zhu
- Division of Research, Kaiser Permanente Northern California, Oakland, CA; Department of Epidemiology and Biostatistics, University of California, San Francisco, CA.
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Hartmann-Boyce J, Theodoulou A, Oke JL, Butler AR, Bastounis A, Dunnigan A, Byadya R, Cobiac LJ, Scarborough P, Hobbs FR, Sniehotta FF, Jebb SA, Aveyard P. Long-Term Effect of Weight Regain Following Behavioral Weight Management Programs on Cardiometabolic Disease Incidence and Risk: Systematic Review and Meta-Analysis. Circ Cardiovasc Qual Outcomes 2023; 16:e009348. [PMID: 36974678 PMCID: PMC10106109 DOI: 10.1161/circoutcomes.122.009348] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 01/13/2023] [Indexed: 03/29/2023]
Abstract
BACKGROUND Behavioral weight management programs (BWMPs) enhance weight loss in the short term, but longer term cardiometabolic effects are uncertain as weight is commonly regained. We assessed the impact of weight regain after BWMPs on cardiovascular risk factors, diabetes, and cardiovascular disease. METHODS Trial registries, 11 databases, and forward-citation searching (latest search, December 19) were used to identify articles published in English, from any geographical region. Randomized trials of BWMPs in adults with overweight/obesity reporting cardiometabolic outcomes at ≥12 months at and after program end were included. Differences between more intensive interventions and comparator groups were synthesized using mixed-effects, meta-regression, and time-to-event models to assess the impact of weight regain on cardiovascular disease incidence and risk. RESULTS One hundred twenty-four trials reporting on ≥1 cardiometabolic outcomes with a median follow-up of 28 (range, 11-360) months after program end were included. Median baseline participant body mass index was 33 kg/m2; median age was 51 years. Eight and 15 study arms (7889 and 4202 participants, respectively) examined the incidence of cardiovascular disease and type 2 diabetes, respectively, with imprecise evidence of a lower incidence for at least 5 years. Weight regain in BWMPs relative to comparators reduced these differences. One and 5 years after program end, total cholesterol/HDL (high-density lipoprotein) ratio was 1.5 points lower at both times (82 studies; 19 003 participants), systolic blood pressure was 1.5 mm mercury and 0.4 mm lower (84 studies; 30 836 participants), and HbA1c (%) 0.38 lower at both times (94 studies; 28 083 participants). Of the included studies, 22% were judged at high risk of bias; removing these did not meaningfully change results. CONCLUSIONS Despite weight regain, BWMPs reduce cardiometabolic risk factors with effects lasting at least 5 years after program end and dwindling with weight regain. Evidence that they reduce the incidence of cardiovascular disease or diabetes is less certain. Few studies followed participants for ≥5 years. REGISTRATION URL: https://www.crd.york.ac.uk/PROSPERO/; Unique identifier: CRD42018105744.
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Affiliation(s)
- Jamie Hartmann-Boyce
- Nuffield Department of Primary Care Health Sciences (J.H.-B., A.T., A.R.B., A.B., R.B., F.D.R.H., S.A.J., P.A.), University of Oxford, United Kingdom
| | - Annika Theodoulou
- Nuffield Department of Primary Care Health Sciences (J.H.-B., A.T., A.R.B., A.B., R.B., F.D.R.H., S.A.J., P.A.), University of Oxford, United Kingdom
| | - Jason L. Oke
- NIHR Oxford Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust, United Kingdom (J.L.O.)
| | - Ailsa R. Butler
- Nuffield Department of Primary Care Health Sciences (J.H.-B., A.T., A.R.B., A.B., R.B., F.D.R.H., S.A.J., P.A.), University of Oxford, United Kingdom
| | - Anastasios Bastounis
- Nuffield Department of Primary Care Health Sciences (J.H.-B., A.T., A.R.B., A.B., R.B., F.D.R.H., S.A.J., P.A.), University of Oxford, United Kingdom
- Division of Epidemiology and Public Health, School of Medicine, University of Nottingham, United Kingdom (A.B.)
| | - Anna Dunnigan
- Oxford University Hospitals NHS Foundation Trust, United Kingdom (A.D.)
- Royal Free London NHS Foundation Trust, United Kingdom (A.D.)
| | - Rimu Byadya
- Nuffield Department of Primary Care Health Sciences (J.H.-B., A.T., A.R.B., A.B., R.B., F.D.R.H., S.A.J., P.A.), University of Oxford, United Kingdom
- United Nations World Food Programme, Cox’s Bazar, Bangladesh, India (R.B.)
| | - Linda J. Cobiac
- Nuffield Department of Population Health, Centre on Population Approaches for Non-Communicable Disease Prevention (L.J.C.), University of Oxford, United Kingdom
| | - Peter Scarborough
- Nuffield Department of Population Health, Oxford Biomedical Research Centre (P.S.), University of Oxford, United Kingdom
| | - F.D. Richard Hobbs
- Nuffield Department of Primary Care Health Sciences (J.H.-B., A.T., A.R.B., A.B., R.B., F.D.R.H., S.A.J., P.A.), University of Oxford, United Kingdom
| | - Falko F. Sniehotta
- Faculty of Medical Sciences, Population Health Sciences Institute, Newcastle University, United Kingdom (F.F.S.)
| | - Susan A. Jebb
- Nuffield Department of Primary Care Health Sciences (J.H.-B., A.T., A.R.B., A.B., R.B., F.D.R.H., S.A.J., P.A.), University of Oxford, United Kingdom
| | - Paul Aveyard
- Nuffield Department of Primary Care Health Sciences (J.H.-B., A.T., A.R.B., A.B., R.B., F.D.R.H., S.A.J., P.A.), University of Oxford, United Kingdom
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Wang Y, Fan M, Qian H, Ying H, Li Y, Wang L. Whole grains-derived functional ingredients against hyperglycemia: targeting hepatic glucose metabolism. Crit Rev Food Sci Nutr 2023; 64:7268-7289. [PMID: 36847153 DOI: 10.1080/10408398.2023.2183382] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Type 2 diabetes mellitus (T2DM) is characterized by the dysregulation of glucose homeostasis, resulting in hyperglycemia. However, concerns have been raised about the safety and efficacy of current hypoglycemic drugs due to undesirable side effects. Increasing studies have shown that whole grains (WG) consumption is inversely associated with the risk of T2DM and its subsequent complications. Thus, dietary strategies involving functional components from the WG provide an intriguing approach to restoring and maintaining glucose homeostasis. This review provides a comprehensive understanding of the major functional components derived from WG and their positive effects on glucose homeostasis, demonstrates the underlying molecular mechanisms targeting hepatic glucose metabolism, and discusses the unclear aspects according to the latest viewpoints and current research. Improved glycemic response and insulin resistance were observed after consumption of WG-derived bioactive ingredients, which are involved in the integrated, multi-factorial, multi-targeted regulation of hepatic glucose metabolism. Promotion of glucose uptake, glycolysis, and glycogen synthesis pathways, while inhibition of gluconeogenesis, contributes to amelioration of abnormal hepatic glucose metabolism and insulin resistance by bioactive components. Hence, the development of WG-based functional food ingredients with potent hypoglycemic properties is necessary to manage insulin resistance and T2DM.
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Affiliation(s)
- Yu Wang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Mingcong Fan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Haifeng Qian
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Hao Ying
- CAS Key laboratory of nutrition, metabolism and food safety, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yan Li
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Li Wang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
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Juhász AE, Greff D, Teutsch B, Gede N, Hegyi P, Horváth EM, Deák PÁ, Nyirády P, Ács N, Juhász R. Galactomannans are the most effective soluble dietary fibers in type 2 diabetes: a systematic review and network meta-analysis. Am J Clin Nutr 2023; 117:266-277. [PMID: 36811560 DOI: 10.1016/j.ajcnut.2022.12.015] [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: 10/05/2022] [Revised: 12/20/2022] [Accepted: 12/23/2022] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Soluble dietary fibers are known to reduce the levels of blood glucose and lipids in patients with type 2 diabetes mellitus (type 2 diabetes). Although several different dietary fiber supplements are utilized, to our knowledge, no previous study has ranked their efficacy yet. OBJECTIVES We performed this systematic review and network meta-analysis to rank the effects of different types of soluble dietary fibers. METHODS We performed our last systematic search on November 20, 2022. Eligible randomized controlled trials (RCTs) included adult patients with type 2 diabetes and compared the intake of soluble dietary fibers with that of another type of dietary fiber or no fiber. The outcomes were related to glycemic and lipid levels. The Bayesian method was used to perform a network meta-analysis and calculate the surface under the cumulative ranking (SUCRA) curve values to rank the interventions. The Grading of Recommendations Assessment, Development, and Evaluation system was applied to evaluate the overall quality of the evidence. RESULTS We identified 46 RCTs, including data from 2685 patients who received 16 types of dietary fibers as intervention. Galactomannans had the highest effect on reducing the levels of HbA1c (SUCRA: 92.33%) and fasting blood glucose (SUCRA: 85.92%). With regard to fasting insulin level, HOMA-IR, β-glucans (SUCRA: 73.45%), and psyllium (SUCRA: 96.67%) were the most effective interventions. Galactomannans were ranked first in reducing the levels of triglycerides (SUCRA: 82.77%) and LDL cholesterol (SUCRA: 86.56%). With regard to cholesterol and HDL cholesterol levels, xylo-oligosaccharides (SUCRA: 84.59%) and gum arabic (SUCRA: 89.06%) were the most effective fibers. Most comparisons had a low or moderate certainty of evidence. CONCLUSIONS Galactomannans were the most effective dietary fiber for reducing the levels of HbA1c, fasting blood glucose, triglycerides, and LDL cholesterol in patients with type 2 diabetes. This study was registered at PROSPERO as ID CRD42021282984.
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Affiliation(s)
- Anna E Juhász
- Center for Translational Medicine, Semmelweis University, Budapest, Hungary; Department of Dietetics and Nutrition Sciences, Semmelweis University, Budapest, Hungary
| | - Dorina Greff
- Center for Translational Medicine, Semmelweis University, Budapest, Hungary; Department of Obstetrics and Gynecology, Semmelweis University, Budapest, Hungary; Department of Physiology, Semmelweis University, Budapest, Hungary
| | - Brigitta Teutsch
- Center for Translational Medicine, Semmelweis University, Budapest, Hungary; Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Noémi Gede
- Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Péter Hegyi
- Center for Translational Medicine, Semmelweis University, Budapest, Hungary; Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary; Institute of Pancreatic Diseases, Semmelweis University, Budapest, Hungary
| | - Eszter M Horváth
- Department of Physiology, Semmelweis University, Budapest, Hungary
| | - Pál Á Deák
- Department of Interventional Radiology, Heart and Vascular Center, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Péter Nyirády
- Department of Urology, Semmelweis University, Budapest, Hungary
| | - Nándor Ács
- Department of Obstetrics and Gynecology, Semmelweis University, Budapest, Hungary
| | - Réka Juhász
- Department of Dietetics and Nutrition Sciences, Semmelweis University, Budapest, Hungary.
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Khorasaniha R, Olof H, Voisin A, Armstrong K, Wine E, Vasanthan T, Armstrong H. Diversity of fibers in common foods: Key to advancing dietary research. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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15
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Li X, Zhou L, Yu Y, Zhang J, Wang J, Sun B. The Potential Functions and Mechanisms of Oat on Cancer Prevention: A Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:14588-14599. [PMID: 36376030 DOI: 10.1021/acs.jafc.2c06518] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Oat is classified as a whole grain and contains high contents of protein, lipids, carbohydrates, vitamins, minerals, and phytochemicals (such as polyphenols, flavonoids, and saponins). In recent years, studies have focused on the effects of oat consumption on reducing the risk of a variety of diseases. Reports have indicated that an oat diet exerts certain biological functions, such as preventing cardiovascular diseases, reducing blood glucose, and promoting intestinal health, along with antiallergy, antioxidation, and cancer preventive effects. At present, cancer is the second leading cause of death worldwide. The natural products of oat are an important breakthrough for developing new strategies of cancer prevention, and their ability to interact with multiple cellular targets helps to combat the complexity of cancer pathogenesis. In addition, the comprehensive study of the cancer prevention activity and potential mechanism of oat nutrients and phytochemicals has become a research hotspot. In this Review, we focused on the potential functions of peptides, dietary fiber, and phytochemicals in oats on cancer prevention and further revealed novel mechanisms and prospects for clinical application. These findings might provide a novel approach to deeply understand the functions and mechanisms for cancer prevention of oat consumption.
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Affiliation(s)
- Xinping Li
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Key Laboratory of Special Food Supervision Technology for State Market Regulation, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China
| | - Linyue Zhou
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Key Laboratory of Special Food Supervision Technology for State Market Regulation, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China
| | - Yonghui Yu
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Key Laboratory of Special Food Supervision Technology for State Market Regulation, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China
| | - Jingjie Zhang
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Key Laboratory of Special Food Supervision Technology for State Market Regulation, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China
| | - Jing Wang
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Key Laboratory of Special Food Supervision Technology for State Market Regulation, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China
| | - Baoguo Sun
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Key Laboratory of Special Food Supervision Technology for State Market Regulation, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China
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Chen V, Zurbau A, Ahmed A, Khan TA, Au-Yeung F, Chiavaroli L, Blanco Mejia S, Leiter LA, Jenkins DJA, Kendall CWC, Sievenpiper JL. Effect of oats and oat ß-glucan on glycemic control in diabetes: a systematic review and meta-analysis of randomized controlled trials. BMJ Open Diabetes Res Care 2022. [PMCID: PMC9438016 DOI: 10.1136/bmjdrc-2022-002784] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
IntroductionCurrent health claims recognize the ability of oat ß-glucan to lower blood cholesterol; however, its ability to improve glycemic control is less certain. We undertook a systematic review and meta-analysis of randomized controlled trials (RCTs) to update the evidence on the effect of oats and oat ß-glucan on glycemic control in individuals with diabetes.Research design and methodsMEDLINE, EMBASE and Cochrane were searched (June 2021) for RCTs of ≥2 weeks investigating the effect of oat ß-glucan on glycemic control in diabetes. The outcomes were hemoglobin A1c (HbA1c), fasting glucose, 2-hour postprandial glucose (2h-PG) from a 75 g oral glucose tolerance test, homeostatic model assessment of insulin resistance (HOMA-IR) and fasting insulin. Independent reviewers extracted the data and assessed the risk of bias. Data were pooled using the generic inverse variance method. Heterogeneity was assessed (Cochran Q) and quantified (I2). Pooled estimates were expressed as mean difference (MD) with 95% CI. The certainty of evidence was assessed using the Grading of Recommendations, Assessment, Development and Evaluations approach.ResultsEight trial comparisons (n=407) met the eligibility criteria. All trials were in adults with type 2 diabetes who were predominantly middle-aged, overweight and treated by antihyperglycemic medications or insulin. A median dose of 3.25 g of oat ß-glucan for a median duration of 4.5 weeks improved HbA1c (MD, −0.47% (95% CI −0.80 to −0.13), pMD=0.006), fasting glucose (−0.75 mmol/L (−1.20 to –0.31), pMD<0.001), 2h-PG (−0.42 mmol/L (−0.70 to –0.14), pMD=0.003) and HOMA-IR (−0.88 (−1.55 to –0.20), pMD=0.011). There was a non-significant reduction in fasting insulin (−4.30 pmol/L (−11.96 to 3.35), pMD=0.271). The certainty of evidence was high for fasting glucose, moderate for HOMA-IR and fasting insulin (downgraded for imprecision), and low for HbA1c and 2h-PG (downgraded for imprecision and inconsistency).ConclusionsConsumption of oats and oat ß-glucan results in generally small improvements in established markers of fasting and postprandial glycemic control beyond concurrent therapy in adults with type 2 diabetes. The current evidence provides a very good indication for reductions in fasting glucose and less of an indication for reductions in HbA1c, 2h-PG, fasting insulin and HOMA-IR in this population.Trial registration numberNCT04631913.
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Cai X, Dang Q, Liu L, Ma Z, Zhao X, Zhang M, Xiao Z, Yijiati A, Ren L, Yu H. Oat nutritious meal has beneficial effect on lipid metabolism in type 2 diabetes mellitus: A 3-month randomized controlled trial. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Effects of Applying Different Doses of Selenite to Soil and Foliar at Different Growth Stage on Selenium Content and Yield of Different Oat Varieties. PLANTS 2022; 11:plants11141810. [PMID: 35890444 PMCID: PMC9324387 DOI: 10.3390/plants11141810] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 06/29/2022] [Accepted: 07/05/2022] [Indexed: 11/16/2022]
Abstract
(1) Background: With the increase in people’s consumption of processed oat products, the production of selenium (Se)-enriched oat has become a possibility to supplement the human body with Se. Therefore, the effects of various factors on the Se-enriched ability and yield of different oat varieties were comprehensively studied. (2) Methods: cv.“Pinyan 5” and cv.“Bayou 18” were applied at the stem-elongation stage and heading stage in the Jinzhong (JZ), and cv.“Bayou 1” and cv.“Jinyan 18” were applied at the heading stage and flowering stage in the northwestern Shanxi (JXB) with different doses of Na2SeO3 (0, 5.48, 10.96, 21.92, 43.84, 65.76, 98.64, 0, 5.48, 10.96, 21.92, 43.84, 65.76, 98.64, 147.96 g hm−2) by soil application and foliar spraying. (3) Results: The grain Se content and yield of oat were affected by the variety, Se application dose, stage and method of Se supplementation. Additionally, the Se content in oat grain was positively correlated with the Se application dose while the yield of oat first increased and then decreased with the Se application dose. (4) Conclusions: In the JZ and JXB, 21.92 g hm−2 and 43.84 g hm−2 Se was sprayed on the leaves of cv.“Bayou 18” and cv.“Bayou 1” at the heading stage, respectively, was the most effective Se biofortification program.
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Antidiabetic and Hypolipidemic Efficiency of Lactobacillus plantarum Fermented Oat (Avena sativa) Extract in Streptozotocin-Induced Diabetes in Rats. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8060267] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Antidiabetic properties of fermented foods have been previously demonstrated. This study aimed to examine the antidiabetic and hypolipidemic potential activities of L. plantarum fermented oat extract in Streptozotocin-induced diabetic rats. Firstly, inoculating 1% of L. plantarum starter culture in 10% whole oat flour in aqueous media resulted in 8.36 log CFU mL−1 and pH 4.60 after 72 h of fermentation at 37 °C. With time progression of oat fermentation, total phenolic content (TPC), antioxidant activity (AOA), and γ-aminobutyric acid (GABA) contents were significantly increased up to 72 h. On the contrary, a significant reduction in β-glucan content was observed only after 72 h of fermentation. Secondly, separated aqueous extracts, i.e., unfermented oat extract (UFOE) and L. plantarum fermented oat extract (LFOE) were examined in vivo in a rat model, which consisted of five groups. Group 1 (negative group, NR); GROUP 2 (positive group, STZ), intraperitoneally injected with a single dose of 45 mg kg−1 BW of Streptozotocin and administered 7 mL of distilled water orally per day; Group 3 (STZ+MET), diabetic rats orally administered 50 mg of metformin kg−1 BW daily; Group 4 (STZ+UFOE), diabetic rats orally administered 7 mL of UFOE daily; and Group 5 (STZ+UFOE), diabetic rats orally administered 7 mL of LFOE daily for 6 weeks. Monitoring random blood glucose (RBG) and fasting blood glucose (FBG) showed that both the UFOE and the LFOE alleviated hyperglycemia in the STZ-induced diabetic rats. The extracts were significantly efficient in improving serum lipid profiles as compared with the positive group. Moreover, liver and kidneys’ functions were improved, and both extracts promoted hepatoprotective and nephroprotective characteristics. Furthermore, the administration of the UFOE and the LFOE efficiently attenuated GSH, CAT, and SOD enzymes and decreased MDA levels as compared with the positive group. In conclusion, data indicate the potential of UFOE and LFOE in future strategies as functional supplements against diabetes and diabetes-related complications.
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Llanaj E, Dejanovic GM, Valido E, Bano A, Gamba M, Kastrati L, Minder B, Stojic S, Voortman T, Marques-Vidal P, Stoyanov J, Metzger B, Glisic M, Kern H, Muka T. Effect of oat supplementation interventions on cardiovascular disease risk markers: a systematic review and meta-analysis of randomized controlled trials. Eur J Nutr 2022; 61:1749-1778. [PMID: 34977959 PMCID: PMC9106631 DOI: 10.1007/s00394-021-02763-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 11/30/2021] [Indexed: 11/04/2022]
Abstract
PURPOSE Oat supplementation interventions (OSIs) may have a beneficial effect on cardiovascular disease (CVD) risk. However, dietary background can modulate such effect. This systematic review assesses the effects of OSIs on CVD risk markers among adults, accounting for different dietary backgrounds or control arms. METHODS We included randomized clinical trials (RCTs) that assessed the effect of oat, oat beta-glucan-rich extracts or avenanthramides on CVD risk markers. RESULTS Seventy-four RCTs, including 4937 predominantly hypercholesterolemic, obese subjects, with mild metabolic disturbances, were included in the systematic review. Of these, 59 RCTs contributed to the meta-analyses. Subjects receiving an OSI, compared to control arms without oats, had improved levels of total cholesterol (TC) [weighted mean difference and (95% CI) - 0.42 mmol/L, (- 0.61; - 0.22)], LDL cholesterol [- 0.29 mmol/L, (- 0.37; - 0.20)], glucose [- 0.25 nmol/L, (- 0.36; - 0.14)], body mass index [- 0.13 kg/m2, (- 0.26; - 0.01)], weight [- 0.94 kg, (- 1.84: - 0.05)], and waist circumference [- 1.06 cm, (- 1.85; - 0.27)]. RCTs on inflammation and/or oxidative stress markers were scarce and with inconsistent findings. RCTs comparing an OSI to heterogeneous interventions (e.g., wheat, eggs, rice, etc.), showed lowered levels of glycated haemoglobin, diastolic blood pressure, HDL cholesterol and apolipoprotein B. The majority of included RCTs (81.1%) had some concerns for risk of bias. CONCLUSION Dietary OSIs resulted in lowered levels of blood lipids and improvements in anthropometric parameters among participants with predominantly mild metabolic disturbances, regardless of dietary background or control. Further high-quality trials are warranted to establish the role of OSIs on blood pressure, glucose homeostasis and inflammation markers.
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Affiliation(s)
- Erand Llanaj
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Present Address: MTA-DE Public Health Research Group, Hungarian Academy of Sciences and University of Debrecen, Debrecen, Hungary
| | - Gordana M. Dejanovic
- Department of Ophthalmology, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Ezra Valido
- Swiss Paraplegic Research, Nottwil, Switzerland
| | - Arjola Bano
- Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland
- Department of Cardiology, University Hospital of Bern, University of Bern, Bern, Switzerland
| | - Magda Gamba
- Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland
- Graduate School for Health Sciences, University of Bern, Bern, Switzerland
| | - Lum Kastrati
- Faculty of Medicine, University of Prishtina “Hasan Prishtina”, Prishtina, Kosovo
| | - Beatrice Minder
- Public Health and Primary Care Library, University Library of Bern, University of Bern, Bern, Switzerland
| | | | - Trudy Voortman
- Department of Epidemiology, Erasmus MC University Medical Centre Rotterdam, Rotterdam, The Netherlands
- Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Pedro Marques-Vidal
- Department of Medicine, Internal Medicine, Lausanne University Hospital, Lausanne, Switzerland
- University of Lausanne, Lausanne, Switzerland
| | - Jivko Stoyanov
- Swiss Paraplegic Research, Nottwil, Switzerland
- Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland
| | - Brandon Metzger
- Standard Process Nutrition Innovation Centre, Kannapolis, USA
| | - Marija Glisic
- Swiss Paraplegic Research, Nottwil, Switzerland
- Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland
| | - Hua Kern
- Standard Process Nutrition Innovation Centre, Kannapolis, USA
| | - Taulant Muka
- Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland
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Garutti M, Nevola G, Mazzeo R, Cucciniello L, Totaro F, Bertuzzi CA, Caccialanza R, Pedrazzoli P, Puglisi F. The Impact of Cereal Grain Composition on the Health and Disease Outcomes. Front Nutr 2022; 9:888974. [PMID: 35711559 PMCID: PMC9196906 DOI: 10.3389/fnut.2022.888974] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 04/26/2022] [Indexed: 12/21/2022] Open
Abstract
Whole grains are a pivotal food category for the human diet and represent an invaluable source of carbohydrates, proteins, fibers, phytocompunds, minerals, and vitamins. Many studies have shown that the consumption of whole grains is linked to a reduced risk of cancer, cardiovascular diseases, and type 2 diabetes and other chronic diseases. However, several of their positive health effects seem to disappear when grains are consumed in the refined form. Herein we review the available literature on whole grains with a focus on molecular composition and health benefits on many chronic diseases with the aim to offer an updated and pragmatic reference for physicians and nutrition professionals.
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Affiliation(s)
- Mattia Garutti
- Department of Medical Oncology - CRO Aviano, National Cancer Institute, IRCCS, Aviano, Italy
| | - Gerardo Nevola
- Department of Anaesthesia and Intensive Care - CRO Aviano, National Cancer Institute, IRCCS, Aviano, Italy
| | - Roberta Mazzeo
- Department of Medical Oncology - CRO Aviano, National Cancer Institute, IRCCS, Aviano, Italy
- Department of Medicine (DAME), University of Udine, Udine, Italy
| | - Linda Cucciniello
- Department of Medical Oncology - CRO Aviano, National Cancer Institute, IRCCS, Aviano, Italy
- Department of Medicine (DAME), University of Udine, Udine, Italy
| | - Fabiana Totaro
- Department of Medical Oncology - CRO Aviano, National Cancer Institute, IRCCS, Aviano, Italy
- Department of Medicine (DAME), University of Udine, Udine, Italy
| | - Carlos Alejandro Bertuzzi
- Department of Anaesthesia and Intensive Care - CRO Aviano, National Cancer Institute, IRCCS, Aviano, Italy
| | - Riccardo Caccialanza
- Clinical Nutrition and Dietetics Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
- Department of Internal Medicine and Medical Therapy, University of Pavia, Pavia, Italy
| | - Paolo Pedrazzoli
- Department of Internal Medicine and Medical Therapy, University of Pavia, Pavia, Italy
- Medical Oncology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Fabio Puglisi
- Department of Medical Oncology - CRO Aviano, National Cancer Institute, IRCCS, Aviano, Italy
- Department of Medicine (DAME), University of Udine, Udine, Italy
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22
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Wang R, Zhang Z, Aihemaitijiang S, Ye C, Halimulati M, Huang X, Qin H. Oat β Glucan Ameliorates Renal Function and Gut Microbiota in Diabetic Rats. Front Nutr 2022; 9:875060. [PMID: 35614982 PMCID: PMC9125244 DOI: 10.3389/fnut.2022.875060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 04/07/2022] [Indexed: 11/13/2022] Open
Abstract
Diabetic nephropathy is a severe complication of diabetes and the leading cause of end-stage renal disease and death. Therefore, we must find effective prevention and treatment approaches to the problem. Oat has a long history of use for its nutritional and medicinal properties, such as maintaining physiological blood glucose levels. Oat β glucan is one of the major bioactive substances produced by oat. However, the protective effects of oat β glucan on diabetic nephropathy are still unclear. This study generated a rat model of diabetic nephropathy to explore the potent therapeutic ability and mechanism of oat β glucan in renal function by 16S rRNA genes sequencing. Diabetic nephropathy model was established in forty rats by left nephrectomy and single intraperitoneal injection of streptozotocin. These rats were randomly divided into the model group and three oat β glucan intervention groups. Twenty rats underwent sham operation and were randomly divided into normal control group and oat β glucan control group. Animals were treated by oral gavage for 8 consecutive weeks. The results showed that oat β glucan reduced blood glucose level and improved renal function (P < 0.05). Oat β glucan significantly improved serum inflammatory levels (P < 0.05). The diversity of intestinal microflora in diabetic nephropathy rats decreased with time prolongation, while oat β-glucan reversed the result. Compared with the model group at week 8, the abundances of Eubacterium, Butyricicoccus, and Ruminococcus were elevated significantly after oat β glucan intervention (P < 0.05). Correlation analysis indicated that abundances of Eubacterium, Butyricicoccus, and Ruminococcus were significantly negatively correlated with the levels of renal impairment markers. In summary, the findings of this study showed that oat β glucan can increase the diversity of intestinal flora, regulate the composition of intestinal flora, modulate intestinal flora metabolism, alleviate the inflammatory response, and further delay the development of diabetic nephropathy. Therefore, oat β glucan has the potential to be developed into the novel and safe drug for diabetic nephropathy.
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Affiliation(s)
- Ruoyu Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
- Beijing's Key Laboratory of Food Safety Toxicology Research and Evaluation, Beijing, China
| | - Zhaofeng Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
- Beijing's Key Laboratory of Food Safety Toxicology Research and Evaluation, Beijing, China
- *Correspondence: Zhaofeng Zhang
| | - Sumiya Aihemaitijiang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
- Beijing's Key Laboratory of Food Safety Toxicology Research and Evaluation, Beijing, China
| | - Chen Ye
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
- Beijing's Key Laboratory of Food Safety Toxicology Research and Evaluation, Beijing, China
| | - Mairepaiti Halimulati
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
- Beijing's Key Laboratory of Food Safety Toxicology Research and Evaluation, Beijing, China
| | - Xiaojie Huang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
- Beijing's Key Laboratory of Food Safety Toxicology Research and Evaluation, Beijing, China
| | - Haoyuan Qin
- Department of Nutrition and Food Studies, Steinhardt School, New York University, New York, NY, United States
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23
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Ferrara L, Joksimovic M, Angelo SD. Could Polyphenolic Food Intake Help in the Control of Type 2 Diabetes? A Narrative Review of the Last Evidence. CURRENT NUTRITION & FOOD SCIENCE 2022. [DOI: 10.2174/1573401318666220317140717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Diabetes is one of the largest global public health concerns, imposing a heavy global burden on public health as well as socio-economic development, and about 90% of adults with this condition have type 2 diabetes (T2D).
Introduction:
Beyond the hereditary factor, there are several risk factors connected to the development of this syndrome; the lifestyles play, increasingly, a predominant role in the development of the metabolic complications related to T2D and a significant role in the onset of this syndrome is played from an unbalanced diet. Polyphenolic food is plant-based food including vegetables, fruits, whole grains, tea, coffee, and nuts. In recent years, there is growing evidence that plant-foods polyphenols, due to their biological properties, may be nutraceuticals and supplementary treatments for various aspects of T2D. Polyphenols may influence glycemia and T2D through hypoglycemic properties as reduction of insulin resistance, reduced fasting blood glucose, and glycosylated hemoglobin value. Based on several in vitro, animal models and some human studies, is has been detected that polyphenol-rich products modulate carbohydrate and lipid metabolism, attenuate hyperglycemia, dyslipidemia, and insulin resistance, improve adipose tissue metabolism, and alleviate oxidative stress and stress-sensitive signaling pathways and inflammatory processes.
Methods:
This manuscript summarizes human clinical trials issued within the last 5 years linking dietary polyphenols to T2D, with a focus on polyphenolic-foods typical of the Mediterranean diet.
Results:
Polyphenolic food can also prevent the development of long-term diabetes complications including cardiovascular disease, neuropathy, nephropathy, and retinopathy.
Conclusion:
Further investigations as other human clinical studies are needed to obtain the best dose and duration of supplementation with polyphenolic food in T2D patients.
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Affiliation(s)
- Luigi Ferrara
- Department of Motor Sciences and Wellness, University of Naples “Parthenope”, Naples, Italy
| | | | - Stefania D' Angelo
- Department of Motor Sciences and Wellness, University of Naples “Parthenope”, Naples, Italy
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24
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Luna-Castillo KP, Olivares-Ochoa XC, Hernández-Ruiz RG, Llamas-Covarrubias IM, Rodríguez-Reyes SC, Betancourt-Núñez A, Vizmanos B, Martínez-López E, Muñoz-Valle JF, Márquez-Sandoval F, López-Quintero A. The Effect of Dietary Interventions on Hypertriglyceridemia: From Public Health to Molecular Nutrition Evidence. Nutrients 2022; 14:nu14051104. [PMID: 35268076 PMCID: PMC8912493 DOI: 10.3390/nu14051104] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/26/2022] [Accepted: 03/03/2022] [Indexed: 11/16/2022] Open
Abstract
Approximately 25–50% of the population worldwide exhibits serum triglycerides (TG) (≥150 mg/dL) which are associated with an increased level of highly atherogenic remnant-like particles, non-alcoholic fatty liver disease, and pancreatitis risk. High serum TG levels could be related to cardiovascular disease, which is the most prevalent cause of mortality in Western countries. The etiology of hypertriglyceridemia (HTG) is multifactorial and can be classified as primary and secondary causes. Among the primary causes are genetic disorders. On the other hand, secondary causes of HTG comprise lifestyle factors, medical conditions, and drugs. Among lifestyle changes, adequate diets and nutrition are the initial steps to treat and prevent serum lipid alterations. Dietary intervention for HTG is recommended in order to modify the amount of macronutrients. Macronutrient distribution changes such as fat or protein, low-carbohydrate diets, and caloric restriction seem to be effective strategies in reducing TG levels. Particularly, the Mediterranean diet is the dietary pattern with the most consistent evidence for efficacy in HTG while the use of omega-3 supplements consumption is the dietary component with the highest number of randomized clinical trials (RCT) carried out with effective results on reducing TG. The aim of this review was to provide a better comprehension between human nutrition and lipid metabolism.
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Affiliation(s)
- Karla Paulina Luna-Castillo
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
| | - Xochitl Citlalli Olivares-Ochoa
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
| | - Rocío Guadalupe Hernández-Ruiz
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
| | - Iris Monserrat Llamas-Covarrubias
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
- Instituto de Nutrigenética y Nutrigenómica Traslacional, CUCS, UdeG, Guadalajara 44340, Jalisco, Mexico
| | - Saraí Citlalic Rodríguez-Reyes
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
- Instituto de Nutrigenética y Nutrigenómica Traslacional, CUCS, UdeG, Guadalajara 44340, Jalisco, Mexico
| | - Alejandra Betancourt-Núñez
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
| | - Barbara Vizmanos
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
- Instituto de Nutrigenética y Nutrigenómica Traslacional, CUCS, UdeG, Guadalajara 44340, Jalisco, Mexico
| | - Erika Martínez-López
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
- Instituto de Nutrigenética y Nutrigenómica Traslacional, CUCS, UdeG, Guadalajara 44340, Jalisco, Mexico
| | - José Francisco Muñoz-Valle
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
- Instituto de Investigación en Ciencias Biomédicas, CUCS, UdeG, Guadalajara 44340, Jalisco, Mexico
| | - Fabiola Márquez-Sandoval
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
- Instituto de Nutrigenética y Nutrigenómica Traslacional, CUCS, UdeG, Guadalajara 44340, Jalisco, Mexico
- Correspondence: (F.M.-S.); (A.L.-Q.); Tel.: +52-(33)1058-5200 (ext. 33644 or 33704) (F.M.-S.)
| | - Andres López-Quintero
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
- Instituto de Nutrigenética y Nutrigenómica Traslacional, CUCS, UdeG, Guadalajara 44340, Jalisco, Mexico
- Correspondence: (F.M.-S.); (A.L.-Q.); Tel.: +52-(33)1058-5200 (ext. 33644 or 33704) (F.M.-S.)
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25
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Tang Y, Li S, Yan J, Peng Y, Weng W, Yao X, Gao A, Cheng J, Ruan J, Xu B. Bioactive Components and Health Functions of Oat. FOOD REVIEWS INTERNATIONAL 2022. [DOI: 10.1080/87559129.2022.2029477] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yong Tang
- College of Agriculture, Guizhou University, Guizhou, P. R. China
| | - Shijuan Li
- College of Plant Protection, Gansu Agricultural University, Lanzhou, P. R. China
| | - Jun Yan
- Key Laboratory of Coarse Cereal Processing in Ministry of Agriculture and Rural Affairs, School of Food and Biological Engineering, Chengdu University, Chengdu, P. R. China
| | - Yan Peng
- College of Agriculture, Guizhou University, Guizhou, P. R. China
| | - Wenfeng Weng
- College of Agriculture, Guizhou University, Guizhou, P. R. China
| | - Xin Yao
- College of Agriculture, Guizhou University, Guizhou, P. R. China
| | - Anjing Gao
- College of Agriculture, Guizhou University, Guizhou, P. R. China
| | - Jianping Cheng
- College of Agriculture, Guizhou University, Guizhou, P. R. China
| | - Jingjun Ruan
- College of Agriculture, Guizhou University, Guizhou, P. R. China
| | - Bingliang Xu
- College of Plant Protection, Gansu Agricultural University, Lanzhou, P. R. China
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26
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Al-Mohaimeed AM, Al-Onazi WA, El-Tohamy MF. Multifunctional Eco-Friendly Synthesis of ZnO Nanoparticles in Biomedical Applications. Molecules 2022; 27:579. [PMID: 35056891 PMCID: PMC8780092 DOI: 10.3390/molecules27020579] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/08/2022] [Accepted: 01/11/2022] [Indexed: 02/01/2023] Open
Abstract
This work describes an environmental-friendly preparation of ZnO nanoparticles using aqueous oat extract. The advanced electrochemical and optical features of green synthesized ZnONPs displayed excellent antibacterial activity and exhibited an important role in pharmaceutical determinations. The formation of nanoscale ZnO was confirmed using various spectroscopic and microscopic investigations. The formed nanoparticles were found to be around 100 nm. The as-prepared ZnONPs were monitored for their antibacterial potential against different bacterial strains. The inhibition zones for ZnONPs were found as Escherichia coli (16 mm), Pseudomonas aeruginosa (17 mm), Staphylococcus aureus (12 mm) and Bacillus subtilis (11 mm) using a 30-µg mL-1 sample concentration. In addition, ZnONPs exhibited significant antioxidant effects, from 58 to 67%, with an average IC50 value of 0.88 ± 0.03 scavenging activity and from 53 to 71% (IC50 value of 0.73 ± 0.05) versus the scavenging free radicals DPPH and ABTS, respectively. The photocatalytic potential of ZnONPs for Rhodamine B dye degradation under UV irradiation was calculated. The photodegradation process was carried out as a function of time-dependent and complete degradation (nearly 98%), with color removal after 120 min. Conclusively, the synthesized ZnONPs using oat biomass might provide a great promise in the future for biomedical applications.
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Affiliation(s)
- Amal Mohamed Al-Mohaimeed
- Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia; (W.A.A.-O.); (M.F.E.-T.)
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27
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Liu S, Yin X, Hou C, Liu X, Ma H, Zhang X, Xu M, Xie Y, Li Y, Wang J. As a Staple Food Substitute, Oat and Buckwheat Compound Has Health-Promoting Effects for Diabetic Rats. Front Nutr 2022; 8:762277. [PMID: 35004803 PMCID: PMC8740054 DOI: 10.3389/fnut.2021.762277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 11/29/2021] [Indexed: 11/17/2022] Open
Abstract
Dietary intervention is crucial for the prevention and control of diabetes. China has the largest diabetic population in the world, yet no one dietary strategy matches the eating habits of the Chinese people. To explore an effective and acceptable dietary pattern, this study uses oat and buckwheat compound (OBC) as a staple food substitute and explored its effects on diabetic Sprague–Dawley rats. The model of diabetic rats was established by combining high-calorie feed and streptozotocin (STZ) injection. The dietary intervention for the seven groups, including a normal control group, a model control group, a metformin control group, a wheat flour control group, and three OBC groups with different doses, started from the beginning of the experiment and lasted for 11 weeks, two consecutive injections of STZ in small doses were operated at the 6th week. General states, glucose metabolism, and lipid metabolism indexes were measured. Antioxidant and inflammatory indexes and pathologic changes of kidney and liver tissues were tested. Changes in kidney and ileum ultramicrostructure were detected. What's more, ileal epithelial tight junction proteins and gut microbiota were analyzed. Significant decreases in fasting blood glucose (FBG), glucose tolerance, serum insulin, and insulin resistance were observed in rats intervened with OBC, and these rats also showed a higher level of superoxide dismutase (SOD) together with improved lipid metabolism, attenuated inflammation, and liver and kidney injuries. In addition, in OBC groups, the intestinal barrier was improved, and the disturbance of gut microbiota was reduced. These results suggest that OBC has health-promoting effects for diabetic rats, and since oat and buckwheat are traditionally consumed grains in China, OBC could be a potential and easy-to-accept staple food substitute for the dietary pattern for Chinese.
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Affiliation(s)
- Siqi Liu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
| | - Xueqian Yin
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
| | - Chao Hou
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
| | - Xinran Liu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
| | - Huijuan Ma
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
| | - Xiaoxuan Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
| | - Meihong Xu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
| | - Ying Xie
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Yong Li
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
| | - Junbo Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
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28
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Role of Whole Grain Consumption in Glycaemic Control of Diabetic Patients: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Nutrients 2021; 14:nu14010109. [PMID: 35010985 PMCID: PMC8746707 DOI: 10.3390/nu14010109] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/21/2021] [Accepted: 12/23/2021] [Indexed: 12/24/2022] Open
Abstract
Background: Observational studies have indicated beneficial effects of whole grain consumption on human health. However, no evidence based on randomized controlled trials has been established. Our objective was to perform a systematic review and meta-analysis of randomized controlled trials to assess the effects of whole grain consumption in glycaemic control of diabetic patients. Methods: A comprehensive search in four databases (Web of Science, Pubmed, Scopus and Cochrane library) was conducted to collect potential articles which measured the roles of whole grain consumption on glycaemic control up to October 2021. Results: A total of 16 eligible trials involving 1068 subjects were identified to evaluate the pooled effect. The overall results indicated that compared with the control group, whole grain intake presented a significantly reduced concentration in fast plasma glucose (WMD = −0.51 mmol/L, 95% CI: −0.73, −0.28; I2 = 88.6%, p < 0.001), a homeostasis model assessment of insulin resistance (WMD = −0.39 μU × mol/L2, 95% CI: −0.73, −0.04; I2 = 58.4%, p = 0.014), and glycosylated haemoglobin (WMD = −0.56%, 95% CI: −0.88, −0.25, I2 = 88.5%, p < 0.001), while no significant difference was observed in fast plasma insulin level between groups (SMD = −0.05, 95% CI: −0.25, 0.14; I2 = 40.7%, p = 0.120). In terms of incremental area under the curve (iAUC), data suggested that whole grain effected a significant decrease in Glucose-iAUC (WMD = −233.09 min × mmol/L, 95% CI: −451.62, −14.57; I2 = 96.1%, p < 0.001) and Insulin-iAUC (SMD = −4.80, 95% CI: −8.36, −1.23; I2 = 89.9%, p = 0.002), although only in a small number of studies. Of note, there is evidence for modest unexplained heterogeneity in the present meta-analysis. Conclusion: Whole grain consumption confers a beneficial effect on glucose metabolism in patients with diabetes. Regrettably, since relevant studies were scarce, we failed to provide confident evidence of whole grain consumption on acute effects including Glucose-iAUC and Insulin-iAUC, which should be addressed in further trials.
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29
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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: 0] [Impact Index Per Article: 0] [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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Mathews R, Shete V, Chu Y. The effect of cereal Β-glucan on body weight and adiposity: A review of efficacy and mechanism of action. Crit Rev Food Sci Nutr 2021:1-13. [PMID: 34727805 DOI: 10.1080/10408398.2021.1994523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The current review examines the totality of the evidence to determine if there exists a relationship between β-glucan and body weight and adiposity and whether such a relationship is a consistent, causal and plausible one. Observational studies suggest an association between oat (i.e., β-glucan) intake and reduced body weight, waist circumference and adiposity. High and moderate quality randomized controlled trials that were specifically designed to evaluate the efficacy of β-glucan on anthropometric outcomes were given the highest weight. Several of these studies indicated a causal relationship between β-glucan consumption and reduction in body weight, BMI, and at least one measure of body fat within diets that were not calorie-restricted. A review of additional animal and human evidence suggests multiple plausible mechanisms by which β-glucan may impact satiety perception, gastric emptying, gut hormones, gut microbiota and short chain fatty acids in the complex interplay of appetite and energy regulation.
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Affiliation(s)
| | - Varsha Shete
- Health & Nutrition Sciences, Global R&D, PepsiCo, Inc. Barrington, Illinois, USA
| | - YiFang Chu
- Health & Nutrition Sciences, Global R&D, PepsiCo, Inc. Barrington, Illinois, USA
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Gao S, Chen Y, Zhao J, Jing R, Guo K, Wang L, Li X, Li C, Hu Z, Xu N. Oat β-glucan ameliorates epidermal barrier disruption by upregulating the expression of CaSR through dectin-1-mediated ERK and p38 signaling pathways. Int J Biol Macromol 2021; 185:876-889. [PMID: 34237364 DOI: 10.1016/j.ijbiomac.2021.07.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 06/21/2021] [Accepted: 07/01/2021] [Indexed: 11/28/2022]
Abstract
The integrity of the epidermal barrier and the maintenance of barrier homeostasis depend on the dynamic balance between the proliferation and differentiation of keratinocytes. Calcium (Ca2+) plays a crucial role in maintaining a balance of these two processes as well as in the formation of an epidermal permeability barrier. In this study, we showed that topical application of oat β-glucan (OG) could ameliorate epidermal hyperplasia and accelerate the recovery of the epidermal barrier by promoting epidermal differentiation. Mechanistic studies revealed a positive interaction between OG and the dectin-1 receptor, and this interaction could lead to an upregulated expression of the calcium-sensing receptor (CaSR) via activation of the downstream ERK and p38 pathways. This consequently increased the sensitivity of keratinocytes to extracellular Ca2+ under the condition of calcium loss following the disruption of the epidermal barrier, resulting in the maintenance of normal keratinocyte differentiation in the epidermis, and ultimately promoting the recovery of the epidermal barrier. These findings clearly demonstrated the healing effect of OG on a physically damaged epidermal barrier. Thus, OG could be considered a valuable component in the development of skin repair agents.
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Affiliation(s)
- Shuang Gao
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou 325035, China; School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Yu Chen
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou 325035, China
| | - Jungang Zhao
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou 325035, China
| | - Rongrong Jing
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou 325035, China
| | - KeKe Guo
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou 325035, China
| | - Lusheng Wang
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou 325035, China
| | - Xuenan Li
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou 325035, China
| | - Chengliang Li
- LB Cosmeceutical Technology Co., Ltd., Shanghai 200233, China
| | - Zhenlin Hu
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou 325035, China; School of Medicine, Shanghai University, Shanghai 200444, China.
| | - Nuo Xu
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou 325035, China.
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[Effects of the composite of buckwheat-oat-pea on blood glucose in diabetic rats]. BEIJING DA XUE XUE BAO. YI XUE BAN = JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2021. [PMID: 34145843 PMCID: PMC8220035 DOI: 10.19723/j.issn.1671-167x.2021.03.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To study the effects of buckwheat-oat-pea (BOP) composite flour [buckwheat ∶ oats ∶ peas=6 ∶ 1 ∶ 1 (quality ratio)] on blood glucose in diabetic rats. METHODS In this study, 64 male Sprague-Dawley rats were divided into 8 groups by fasting blood glucose (FBG) and body weight: normal control group, model control group, metformin group, buckwheat group, oats group, BOP low-dose group (BOP-L), medium-dose group (BOP-M), and high-dose group (BOP-H). The rats in the normal control group were fed with normal diet, the rats in the model control group and metformin group were fed with a high-fat diet (HFD), and the rats in the buckwheat group, oats group, and BOP-L, BOP-M, BOP-H groups were fed with HFD containing 10% buckwheat flour, 10% oat flour, 3.3% BOP, 10% BOP, 30% BOP, respectively. The HFD in all the groups had the same percentage of energy from fat (45%). After 30 days, the rats fed with HFD received intraperitoneal injection of streptozotocin (30 mg/kg, once a week for two weeks) to establish diabetes mellitus. After the model was successful established, the rats were fed for another 28 days. During the study, the body weight, food intake/body weight (FI/BW) and water intake/body weight (WI/BW), food utilization rate, 24 h urine volume, FBG, glucose area under curve (GAUC) of oral glucose tolerance test were measured regularly. At the end of the study, the fasting serum glucose and insulin were measured, and homeostasis model assessment of insulin resistance (HOMA-IR) was calculated. RESULTS With the inducing of HFD and streptozotocin, compared with the normal control group, the rats in the model control group had higher FI/BW, WI/BW, 24 h urine volume, FBG, GAUC, HOMA-IR (P < 0.05), and lower body weight, food utilization rate (P < 0.05). Compared with the model control group, the rats in the three BOP groups all had higher body weight, food utilization rate (P < 0.05), and lower WI/BW, HOMA-IR (P < 0.05); the rats in the BOP-L and BOP-M groups had lower FI/BW, 24 h urine volume, FBG (P < 0.05), and the rats in the BOP-M group also had lower GAUC (P < 0.05). After the establishment of diabetes, there was no significant difference in blood glucose and the other indicators between the rats in the three BOP groups and the buckwheat group or the oats group (P>0.05). CONCLUSION The BOP had the effects of reducing blood glucose, insulin resistance and diabetic symptoms on diabetic rats, and had the value for further development and utilization.
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尹 雪, 张 晓, 文 婧, 刘 思, 刘 欣, 周 若, 王 军. [Effects of the composite of buckwheat-oat-pea on blood glucose in diabetic rats]. BEIJING DA XUE XUE BAO. YI XUE BAN = JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2021; 53:447-452. [PMID: 34145843 PMCID: PMC8220035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Indexed: 12/17/2023]
Abstract
OBJECTIVE To study the effects of buckwheat-oat-pea (BOP) composite flour [buckwheat ∶ oats ∶ peas=6 ∶ 1 ∶ 1 (quality ratio)] on blood glucose in diabetic rats. METHODS In this study, 64 male Sprague-Dawley rats were divided into 8 groups by fasting blood glucose (FBG) and body weight: normal control group, model control group, metformin group, buckwheat group, oats group, BOP low-dose group (BOP-L), medium-dose group (BOP-M), and high-dose group (BOP-H). The rats in the normal control group were fed with normal diet, the rats in the model control group and metformin group were fed with a high-fat diet (HFD), and the rats in the buckwheat group, oats group, and BOP-L, BOP-M, BOP-H groups were fed with HFD containing 10% buckwheat flour, 10% oat flour, 3.3% BOP, 10% BOP, 30% BOP, respectively. The HFD in all the groups had the same percentage of energy from fat (45%). After 30 days, the rats fed with HFD received intraperitoneal injection of streptozotocin (30 mg/kg, once a week for two weeks) to establish diabetes mellitus. After the model was successful established, the rats were fed for another 28 days. During the study, the body weight, food intake/body weight (FI/BW) and water intake/body weight (WI/BW), food utilization rate, 24 h urine volume, FBG, glucose area under curve (GAUC) of oral glucose tolerance test were measured regularly. At the end of the study, the fasting serum glucose and insulin were measured, and homeostasis model assessment of insulin resistance (HOMA-IR) was calculated. RESULTS With the inducing of HFD and streptozotocin, compared with the normal control group, the rats in the model control group had higher FI/BW, WI/BW, 24 h urine volume, FBG, GAUC, HOMA-IR (P < 0.05), and lower body weight, food utilization rate (P < 0.05). Compared with the model control group, the rats in the three BOP groups all had higher body weight, food utilization rate (P < 0.05), and lower WI/BW, HOMA-IR (P < 0.05); the rats in the BOP-L and BOP-M groups had lower FI/BW, 24 h urine volume, FBG (P < 0.05), and the rats in the BOP-M group also had lower GAUC (P < 0.05). After the establishment of diabetes, there was no significant difference in blood glucose and the other indicators between the rats in the three BOP groups and the buckwheat group or the oats group (P>0.05). CONCLUSION The BOP had the effects of reducing blood glucose, insulin resistance and diabetic symptoms on diabetic rats, and had the value for further development and utilization.
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Affiliation(s)
- 雪倩 尹
- />北京大学公共卫生学院营养与食品卫生学系,北京 100191Department of Nutrition and Food Hygiene, Peking University School of Public Health, Beijing 100191, China
| | - 晓玄 张
- />北京大学公共卫生学院营养与食品卫生学系,北京 100191Department of Nutrition and Food Hygiene, Peking University School of Public Health, Beijing 100191, China
| | - 婧 文
- />北京大学公共卫生学院营养与食品卫生学系,北京 100191Department of Nutrition and Food Hygiene, Peking University School of Public Health, Beijing 100191, China
| | - 思奇 刘
- />北京大学公共卫生学院营养与食品卫生学系,北京 100191Department of Nutrition and Food Hygiene, Peking University School of Public Health, Beijing 100191, China
| | - 欣然 刘
- />北京大学公共卫生学院营养与食品卫生学系,北京 100191Department of Nutrition and Food Hygiene, Peking University School of Public Health, Beijing 100191, China
| | - 若宇 周
- />北京大学公共卫生学院营养与食品卫生学系,北京 100191Department of Nutrition and Food Hygiene, Peking University School of Public Health, Beijing 100191, China
| | - 军波 王
- />北京大学公共卫生学院营养与食品卫生学系,北京 100191Department of Nutrition and Food Hygiene, Peking University School of Public Health, Beijing 100191, China
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Zeng Q, Li N, Pan XF, Chen L, Pan A. Clinical management and treatment of obesity in China. Lancet Diabetes Endocrinol 2021; 9:393-405. [PMID: 34022157 DOI: 10.1016/s2213-8587(21)00047-4] [Citation(s) in RCA: 107] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 02/03/2021] [Accepted: 02/12/2021] [Indexed: 02/08/2023]
Abstract
China has one of the largest populations with obesity in the world, and obesity has become a major challenge for the country's health-care system. Current guidelines for obesity management are not adequately supported by evidence from clinical studies in Chinese populations. Effective lifestyle interventions suitable for Chinese populations are scarce, insufficient weight-loss medications have been approved by regulatory bodies, and there is low acceptance of non-lifestyle interventions (ie, medications and surgery) among both health-care providers and the general public. Large, well designed, and well implemented clinical trials are needed to strengthen the evidence base for the clinical management of obesity in China. Obesity management can be improved through use of a tiered system involving health management centres, integrated lifestyle interventions and medical treatments, strengthened obesity education and training, and use of advanced electronic health technologies. Resource mobilisation, support from major stakeholders for people with overweight or obesity, and education and changes to social norms among the wider public are also needed. National health policies should prioritise both obesity prevention and improvement of the treatment and management of obesity.
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Affiliation(s)
- Qiang Zeng
- Health Management Institute, The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Naishi Li
- Department of Endocrinology, Key Laboratory of Endocrinology of the National Health Commission, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xiong-Fei Pan
- Department of Epidemiology and Biostatistics and Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Lulu Chen
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China.
| | - An Pan
- Department of Epidemiology and Biostatistics and Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Xu B, Fu J, Qiao Y, Cao J, Deehan EC, Li Z, Jin M, Wang X, Wang Y. Higher intake of microbiota-accessible carbohydrates and improved cardiometabolic risk factors: a meta-analysis and umbrella review of dietary management in patients with type 2 diabetes. Am J Clin Nutr 2021; 113:1515-1530. [PMID: 33693499 DOI: 10.1093/ajcn/nqaa435] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 12/17/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Microbiota-accessible carbohydrates (MACs) are critical substrates for intestinal microbes; the subsequent production of SCFAs may have some potential benefits for patients with type 2 diabetes mellitus (T2DM). OBJECTIVES We conducted a meta-analysis of randomized controlled trials (RCTs) to assess the effects of higher compared with lower MAC intakes on cardiovascular risk factors in T2DM patients and performed an umbrella review of RCTs to evaluate the evidence quality concerning existing dietary T2DM interventions. METHODS Publications were identified by searching MEDLINE, EMBASE, and CINAHL. In the meta-analysis, random-effects models were used to calculate pooled estimates, and sensitivity analyses, meta-regression, subgroup analyses, and Egger's test were performed. For the umbrella review, we summarized pooled estimates, 95% CIs, heterogeneity, and publication bias. The Grading of Recommendations Assessment, Development and Evaluation (GRADE) and modified NutriGrade were used to assess the quality of evidence in the meta-analysis and umbrella review, respectively. RESULTS Forty-five RCTs with 1995 participants were included in the meta-analysis. High MAC intake significantly reduced glycated hemoglobin (HbA1c) (weighted mean difference [WMD] -0.436% [-0.556, -0.315]), fasting glucose (WMD -0.835 mmol/L [-1.048, -0.622]), total cholesterol (WMD -0.293 mmol/L [-0.397, -0.190]), triglycerides (WMD -0.118 mmol/L [-0.308, -0.058]), BMI (WMD -0.476 [-0.641, -0.312]), and systolic blood pressure (WMD -3.066 mmHg [-5.653, -0.478]), with a moderate-to-high quality of evidence, compared with low intake. Region, dose, and MAC type were key variables. The umbrella review of all dietary interventions for cardiovascular risk factors in patients with T2DM included 26 meta-analyses with 158 pooled estimates. The evidence quality of MACs, dietary fiber, high-protein diet, ω-3 (n-3), viscous fiber, vitamin D, and vitamin E intake was moderate to high. CONCLUSIONS When compared with lower intake, increased MAC intake improved glycemic control, blood lipid, body weight, and inflammatory markers for people with T2DM. This trial was registered at PROSPERO (https://www.crd.york.ac.uk/PROSPERO/#recordDetails) as CRD42019120531.
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Affiliation(s)
- Bocheng Xu
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Jie Fu
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yanxiang Qiao
- Institute of Metabolic Diseases, the 5th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, Guangdong, China
| | - Jinping Cao
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Edward C Deehan
- Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, Canada
| | - Zhi Li
- College of Life Sciences, Hebei Normal University, Shijiazhuang, China
| | - Mingliang Jin
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Xinxia Wang
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yizhen Wang
- College of Animal Sciences, Zhejiang University, Hangzhou, China
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Xu B, Cao J, Fu J, Li Z, Jin M, Wang X, Wang Y. The effects of nondigestible fermentable carbohydrates on adults with overweight or obesity: a meta-analysis of randomized controlled trials. Nutr Rev 2021; 80:165-177. [PMID: 33997907 DOI: 10.1093/nutrit/nuab018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
CONTEXT Nondigestible fermentable carbohydrates (NDFCs) can be fermented by microbiota, thereby yielding metabolites that have a beneficial role in the prevention and treatment of obesity and its complications. However, to our knowledge, no meta-analysis has been conducted to evaluate the effects of NDFCs on obesity. OBJECTIVE To conduct a meta-analysis of randomized controlled trials (RCTs) to summarize existing evidence on the effects of numerous NDFCs on adiposity and cardiovascular risk factors in adults with overweight or obesity with ≥2 weeks of follow-up. DATA SOURCES The following databases were searched: MEDLINE, Embase, and CINAHL. DATA EXTRACTION Seventy-seven RCTs with 4535 participants were identified for meta-analysis from the 3 databases. DATA ANALYSIS The findings suggest that increased intake of NDFCs is significantly effective in reducing body mass index by 0.280 kg/m2, weight by 0.501 kg, hip circumference by 0.554 cm, waist circumference by 0.649 cm, systolic blood pressure by 1.725 mmHg, total cholesterol by 0.36 mmol/L, and low-density lipoprotein by 0.385 mmol/L, with evidence of moderate-to-high quality. CONCLUSION Convincing evidence from meta-analyses of RCTs indicates that increased NDFC intake improves adiposity, blood lipid levels, and systolic blood pressure in people with overweight and obesity.
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Affiliation(s)
- Bocheng Xu
- B. Xu, J. Cao, J. Fu, Z. Li, M. Jin, X. Wang, and Y. Wang are with the College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Jinping Cao
- B. Xu, J. Cao, J. Fu, Z. Li, M. Jin, X. Wang, and Y. Wang are with the College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Jie Fu
- B. Xu, J. Cao, J. Fu, Z. Li, M. Jin, X. Wang, and Y. Wang are with the College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Zhi Li
- B. Xu, J. Cao, J. Fu, Z. Li, M. Jin, X. Wang, and Y. Wang are with the College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Mingliang Jin
- B. Xu, J. Cao, J. Fu, Z. Li, M. Jin, X. Wang, and Y. Wang are with the College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Xinxia Wang
- B. Xu, J. Cao, J. Fu, Z. Li, M. Jin, X. Wang, and Y. Wang are with the College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yizhen Wang
- B. Xu, J. Cao, J. Fu, Z. Li, M. Jin, X. Wang, and Y. Wang are with the College of Animal Sciences, Zhejiang University, Hangzhou, China
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Mathews R, Kamil A, Chu Y. Global review of heart health claims for oat beta-glucan products. Nutr Rev 2021; 78:78-97. [PMID: 32728751 DOI: 10.1093/nutrit/nuz069] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Coronary heart disease (CHD) is the leading cause of death globally. Consumption of whole grains and cereal fiber, as part of a healthy diet, can lower the risk of CHD. Health claims on food products are effective in helping consumers select healthful diets. The US Food and Drug Administration was the first to approve a health claim, in 1997, between beta-glucan soluble fiber from whole oats, oat bran, and whole oat flour and reduced risk of CHD. Only a few countries have approved similar claims. Since 1997, a significant amount of additional evidence has been published on the relationship between oat beta-glucan and CHD. To assist other jurisdictions in potentially utilizing this claim, the full extent of data that supports this claim (ie, the evidence utilized by the US Food and Drug Administration to substantiate the claim, as well as the results of 49 clinical trials published since 1997) are reviewed here. The complexities involved in authoring evidence-based health claims, including the impact of processing on beta-glucan cholesterol-lowering efficacy in approving eligible beta-glucan products, are also discussed.
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Aparicio-García N, Martínez-Villaluenga C, Frias J, Peñas E. Production and Characterization of a Novel Gluten-Free Fermented Beverage Based on Sprouted Oat Flour. Foods 2021; 10:139. [PMID: 33440811 PMCID: PMC7828039 DOI: 10.3390/foods10010139] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 12/22/2020] [Accepted: 01/06/2021] [Indexed: 12/27/2022] Open
Abstract
This study investigates the use of sprouted oat flour as a substrate to develop a novel gluten-free beverage by fermentation with a probiotic (Lactobacillus plantarum WCFS1) starter culture. Physicochemical, microbiological, nutritional and sensory properties of sprouted oat fermented beverage (SOFB) were characterized. After fermentation for 4 h, SOFB exhibited an acidity of 0.42 g lactic acid/100 mL, contents of lactic and acetic acids of 1.6 and 0.09 g/L, respectively, and high viable counts of probiotic starter culture (8.9 Log CFU/mL). Furthermore, SOFB was a good source of protein (1.7 g/100 mL), β-glucan (79 mg/100 mL), thiamine (676 μg/100 mL), riboflavin (28.1 μg/100 mL) and phenolic compounds (61.4 mg GAE/100 mL), and had a high antioxidant potential (164.3 mg TE/100 mL). Spoilage and pathogenic microorganisms were not detected in SOFB. The sensory attributes evaluated received scores higher than 6 in a 9-point hedonic scale, indicating that SOFB was well accepted by panelists. Storage of SOFB at 4 °C for 20 days maintained L. plantarum viability and a good microbial quality and did not substantially affect β-glucan content. SOFB fulfils current consumer demands regarding natural and wholesome plant-based foods.
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Affiliation(s)
| | | | | | - Elena Peñas
- Department of Food Characterization, Quality and Safety, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), 28006 Madrid, Spain; (N.A.-G.); (C.M.-V.); (J.F.)
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Xie Y, Gou L, Peng M, Zheng J, Chen L. Effects of soluble fiber supplementation on glycemic control in adults with type 2 diabetes mellitus: A systematic review and meta-analysis of randomized controlled trials. Clin Nutr 2020; 40:1800-1810. [PMID: 33162192 DOI: 10.1016/j.clnu.2020.10.032] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/09/2020] [Accepted: 10/19/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND & AIMS Soluble dietary fiber is prompted as an important part of reducing blood glucose, ameliorating insulin resistance and controlling body weight. Thus, we performed this systematic review and meta-analysis of randomized controlled trials (RCTs) to quantify and synthesize the effects of soluble fiber supplementation on glycemic control and BMI modification in adults with type 2 diabetes. METHODS We searched MEDLINE, Embase, Web of Science, ClinicalTrials.gov, and Cochrane databases until February 13, 2020 to identify RCTs that detected the effects of soluble fiber supplementation on glycemic control in adults with type 2 diabetes. A random-effects model with the generic inverse variance method was used to analyze the pooled data. The meta-regression and subgroup analyses were conducted to identify the variables that influenced the pooled results. The robust error meta-regression model was used to conduct the dose-response test. The Grading of Recommendations Assessment, Development, and Evaluation (GRADE) system was undertaken to evaluate the overall quality of the evidence. RESULTS A total of 29 RCTs (33 comparisons) involving 1517 participants were identified in this meta-analysis. Results showed that supplemental soluble dietary fiber significantly reduced glycosylated hemoglobin (HbA1c, MD -0.63%, 95% CI [-0.90, -0.37]; P < 0.00001), fasting plasma glucose (FPG, MD -0.89 mmol/L, 95% CI [-1.28, -0.51]; P < 0.00001), fasting insulin (SMD -0.48, 95% CI [-0.80, -0.17]; P = 0.003), homeostatic model assessment of insulin resistance (HOMA-IR, SMD -0.58, 95% CI [-0.86, -0.29], P < 0.0001), fructosamine (SMD -1.03, 95% CI [-1.51, -0.55]; P < 0.0001), 2-h postprandial plasma glucose (SMD -0.74, 95% CI [-1.00, -0.48]; P < 0.00001), and BMI (SMD -0.31, 95% CI [-0.61, -0.00], P = 0.05) compared with control diets in patients with type 2 diabetes. Specifically, dose-response meta-analyses presented that a daily dosage of 7.6-8.3 g was recommended. CONCLUSION Intake of soluble fiber supplementation is effective in improving glycemic control and BMI level in type 2 diabetes and is also a convenient way to help individuals meet standard dietary fiber needs. But due to the evidence of substantial heterogeneity in most pooled estimates, further long-term and high-quality RCTs are needed.
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Affiliation(s)
- Yajuan Xie
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, China; Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Luoning Gou
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, China; Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Miaomiao Peng
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, China; Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Juan Zheng
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, China; Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Lulu Chen
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, China; Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China.
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40
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Zhao M, Zhang H, Wang J, Shan D, Xu Q. Serum metabolomics analysis of the intervention effect of whole grain oats on insulin resistance induced by high-fat diet in rats. Food Res Int 2020; 135:109297. [DOI: 10.1016/j.foodres.2020.109297] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 04/21/2020] [Accepted: 05/04/2020] [Indexed: 12/17/2022]
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Genetic diversity in exotic oat germplasm & resistance against barley yellow dwarf virus. Saudi J Biol Sci 2020; 27:2622-2631. [PMID: 32994720 PMCID: PMC7499088 DOI: 10.1016/j.sjbs.2020.05.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 05/23/2020] [Accepted: 05/24/2020] [Indexed: 11/24/2022] Open
Abstract
Oat (Avena sativa L.) is an important fodder crop of Pakistan, though with low productivity. The present study was conducted to evaluate the performance and genetic diversity of exotic oat germplasm, with emphasis on cereal yellow dwarf virus resistance. A total of 16 exotic line (introduced from Aarhus University Denmark) and 1 local line (provided by The University of Agriculture Peshawar), were grown during the season 2017–18 in Completely Randomized Block Design with three replications across two locations of Khyber Pakhtunkhwa i.e., Peshawar and Kohat. Field testing enabled to collect the data on BYDV incidence, BYDV severity, aphid infestation, plant height, leaf area, panicle length, panicle weight, spikelets per panicle, 1000 grain weight (g), grain yield (g), biological yield (g) and harvest index (%). Prevalence of BYDV was variable across location and over time. Six weeks data showed high disease pressure at Peshawar (85%), with SA-O-01 genotype having AUDPC value of 95%. Almost all the varieties showed less tolerance towards the Aphids attack. Line SA-O-15 showed the maximum 1000 grain weight (42.6 g) at Kohat, while SA-O-4 showed the maximum 1000 grain weight (60.7 g) at Peshawar. Line SA-O-05 (3634 g per (0.9 m2) plot) gave the maximum biological yield at Kohat station, while Line SA-O-01 gave the maximum biological yield (2517 g) at Peshawar. Mean grain yield for Kohat was recorded 0.155 g per (0.9 m2) plot while for Peshawar it was 0.231 g per (0.9 m2) plot. At Kohat line SA-O-10 produced the maximum grain yield (0.229 g), while line SA-O-12 produced the maximum grain yield at Peshawar (0.288 g). Molecular genotyping with a set of 4 RAPD primers revealed substantial diversity among17 oat lines. A total of 23 loci were amplified showing a high level of variations and polymorphism among the proposed lines. The maximum number of loci was recorded for GLA-04 (8), while the minimum number of loci was recorded for GLD-18 (4). Among the tested RAPD primers the maximum gene diversity (0.529) was recorded for loci GLA-03B230, GLA-04B130, GLA-04B300, GLB-05B150 and GLA-18B100 while the minimum (0.118) genetic diversity was recorded for loci GLA-03B600, GLB-05B330 and GLA-18B500. A clear divergence was found between most of the exotic oat lines. The observed genetic diversity in exotic oat germplasm and its resistance towards Barley Yellow Dwarf virus could be useful for oat genetic improvement and broadening the genetic background of cultivated oat germplasm.
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Jones JM, García CG, Braun HJ. Perspective: Whole and Refined Grains and Health-Evidence Supporting "Make Half Your Grains Whole". Adv Nutr 2020; 11:492-506. [PMID: 31682258 PMCID: PMC7231599 DOI: 10.1093/advances/nmz114] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 07/11/2019] [Accepted: 10/01/2019] [Indexed: 02/07/2023] Open
Abstract
Research-based dietary guidelines suggest that consumers "make half their grains whole." Yet some advocate ingesting only whole-grain foods (WGFs) and avoiding all refined-grain foods (RGFs). Some even recommend avoiding all grain-based foods (GBFs). This article will provide arguments to counter negative deductions about GBFs and RGFs, especially staple ones, and to support dietary guidance recommending a balance of GBFs-achieved through the right mix, type, and quantity of WGFs and RGFs. Studies looking at early mortality, body weight, and glucose tolerance and diabetes will be used as examples to characterize the literature about GBFs. The following issues are highlighted: 1) inconsistent findings between epidemiological and interventional studies and impacts of GBFs on health outcomes, and the underreporting of findings showing RGFs neither raise nor lower health risks; 2) multiple confounding and potential interactions make adequate statistical adjustment difficult; 3) nonuniform WGF definitions among studies make comparison of results challenging, especially because some WGFs may contain 49-74% refined grain (RG); 4) binary categorization of GBFs creates bias because nearly all categories of WGFs are recommended, but nearly half the RGF categories are not; 5) ingestion of >5 (30-g) servings RGFs/d and <1 serving WFGs/d creates dietary imbalance; 6) pattern names (e.g., "white bread") may impugn RGFs, when names such as "unbalanced" or "few fruits and vegetables" may more fairly characterize the dietary imbalance; 7) avoidance of all enriched RGs may not only impair status of folate and other B vitamins and certain minerals such as iron and zinc but also decrease acceptability of WGFs; 8) extrapolation beyond median documented intakes in high-WGF consumers (∼48 g whole grain/d) in most cohorts is speculative; 9) recommended dietary patterns such as the Mediterranean diet demonstrate that the right mix of WGFs and RGFs contributes to positive health outcomes.
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Affiliation(s)
| | - Carlos Guzmán García
- Department of Genetics, Advanced Technical College of Agricultural Engineering and Forestry, University of Córdoba, Córdoba, Spain
| | - Hans J Braun
- Global Wheat Program, Centro Internacional de Mejoramiento de Maiz y Trigo, El Batan, near Texcoco, Mexico
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Jovanovski E, Mazhar N, Komishon A, Khayyat R, Li D, Blanco Mejia S, Khan T, Jenkins AL, Smircic-Duvnjak L, Sievenpiper JL, Vuksan V. Effect of viscous fiber supplementation on obesity indicators in individuals consuming calorie-restricted diets: a systematic review and meta-analysis of randomized controlled trials. Eur J Nutr 2020; 60:101-112. [PMID: 32198674 DOI: 10.1007/s00394-020-02224-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 03/09/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND Dietary fiber has played a consistent role in weight management, with efficacy potentially attributed to increased viscous fiber consumption. PURPOSE To summarize the effects of viscous fiber on body weight and other anthropometric parameters, along with a calorie-deficient diet, through a systematic review and meta-analysis. METHODS MEDLINE, EMBASE, and the Cochrane library were searched through July 24, 2019 for randomized controlled trials that assessed the effect of viscous fiber supplementation as part of a restricted calorie diet for ≥ 4 weeks relative to comparator diets. Data were pooled using the generic inverse-variance method with random-effects models and expressed as mean differences with 95% confidence intervals. Inter-study heterogeneity was assessed using Cochran's Q and quantified with I2. The Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach was used to evaluate the overall certainty of evidence. RESULTS Findings from 15 studies (n = 1347) showed viscous fiber supplementation significantly decreased body weight (- 0.81 kg [- 1.20, - 0.41]; p < 0.0001), BMI (- 0.25 kg/m2 [- 0.46, - 0.05]; p = 0.01), and body fat (- 1.39% [- 2.61, - 0.17]; p = 0.03), compared to control. No effect on waist circumference was found. The certainty of evidence was graded as "moderate" for body weight, BMI, and body fat based on downgrades for imprecision. Waist circumference was graded "low" for downgrades of inconsistency and imprecision. CONCLUSION Viscous fiber within a calorie-restricted diet significantly improved body weight and other markers of adiposity in overweight adults and those with additional risk factors for cardiovascular disease. This trial is registered at www.clinicaltrials.gov as NCT03257449. REGISTRATION ClinicalTrials.gov identifier: NCT03257449.
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Affiliation(s)
- Elena Jovanovski
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, 30 Bond Street, Toronto, ON, M5B1X1, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Nourah Mazhar
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, 30 Bond Street, Toronto, ON, M5B1X1, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Allison Komishon
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, 30 Bond Street, Toronto, ON, M5B1X1, Canada
| | - Rana Khayyat
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, 30 Bond Street, Toronto, ON, M5B1X1, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Dandan Li
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, 30 Bond Street, Toronto, ON, M5B1X1, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Sonia Blanco Mejia
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, 30 Bond Street, Toronto, ON, M5B1X1, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada.,Toronto 3D Knowledge Synthesis and Clinical Trials Unit, St. Michael's Hospital, Toronto, Canada
| | - Tauseef Khan
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, 30 Bond Street, Toronto, ON, M5B1X1, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada.,Toronto 3D Knowledge Synthesis and Clinical Trials Unit, St. Michael's Hospital, Toronto, Canada
| | - Alexandra L Jenkins
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, 30 Bond Street, Toronto, ON, M5B1X1, Canada
| | - Lea Smircic-Duvnjak
- Clinic for Diabetes, Endocrinology and Metabolic Diseases Vuk Vrhovac, University Hospital Merkur, University of Zagreb, School of Medicine, Zagreb, Croatia
| | - John L Sievenpiper
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, 30 Bond Street, Toronto, ON, M5B1X1, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada.,Toronto 3D Knowledge Synthesis and Clinical Trials Unit, St. Michael's Hospital, Toronto, Canada.,Division of Endocrinology and Metabolism, Department of Medicine, St. Michael's Hospital, Toronto, Canada.,Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada
| | - Vladimir Vuksan
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, 30 Bond Street, Toronto, ON, M5B1X1, Canada. .,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada. .,Division of Endocrinology and Metabolism, Department of Medicine, St. Michael's Hospital, Toronto, Canada. .,Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada.
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Reynolds AN, Akerman AP, Mann J. Dietary fibre and whole grains in diabetes management: Systematic review and meta-analyses. PLoS Med 2020; 17:e1003053. [PMID: 32142510 PMCID: PMC7059907 DOI: 10.1371/journal.pmed.1003053] [Citation(s) in RCA: 216] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 02/03/2020] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Fibre is promoted as part of a healthy dietary pattern and in diabetes management. We have considered the role of high-fibre diets on mortality and increasing fibre intake on glycaemic control and other cardiometabolic risk factors of adults with prediabetes or diabetes. METHODS AND FINDINGS We conducted a systematic review of published literature to identify prospective studies or controlled trials that have examined the effects of a higher fibre intake without additional dietary or other lifestyle modification in adults with prediabetes, gestational diabetes, type 1 diabetes, and type 2 diabetes. Meta-analyses were undertaken to determine the effects of higher fibre intake on all-cause and cardiovascular mortality and increasing fibre intake on glycaemic control and a range of cardiometabolic risk factors. For trials, meta regression analyses identified further variables that influenced the pooled findings. Dose response testing was undertaken; Grading of Recommendations Assessment, Development and Evaluation (GRADE) protocols were followed to assess the quality of evidence. Two multicountry cohorts of 8,300 adults with type 1 or type 2 diabetes followed on average for 8.8 years and 42 trials including 1,789 adults with prediabetes, type 1, or type 2 diabetes were identified. Prospective cohort data indicate an absolute reduction of 14 fewer deaths (95% confidence interval (CI) 4-19) per 1,000 participants over the study duration, when comparing a daily dietary fibre intake of 35 g with the average intake of 19 g, with a clear dose response relationship apparent. Increased fibre intakes reduced glycated haemoglobin (HbA1c; mean difference [MD] -2.00 mmol/mol, 95% CI -3.30 to -0.71 from 33 trials), fasting plasma glucose (MD -0.56 mmol/L, 95% CI -0.73 to -0.38 from 34 trials), insulin (standardised mean difference [SMD] -2.03, 95% CI -2.92 to -1.13 from 19 trials), homeostatic model assessment of insulin resistance (HOMA IR; MD -1.24 mg/dL, 95% CI -1.72 to -0.76 from 9 trials), total cholesterol (MD -0.34 mmol/L, 95% CI -0.46 to -0.22 from 27 trials), low-density lipoprotein (LDL) cholesterol (MD -0.17 mmol/L, 95% CI -0.27 to -0.08 from 21 trials), triglycerides (MD -0.16 mmol/L, 95% CI -0.23 to -0.09 from 28 trials), body weight (MD -0.56 kg, 95% CI -0.98 to -0.13 from 18 trials), Body Mass Index (BMI; MD -0.36, 95% CI -0·55 to -0·16 from 14 trials), and C-reactive protein (SMD -2.80, 95% CI -4.52 to -1.09 from 7 trials) when compared with lower fibre diets. All trial analyses were subject to high heterogeneity. Key variables beyond increasing fibre intake were the fibre intake at baseline, the global region where the trials were conducted, and participant inclusion criteria other than diabetes type. Potential limitations were the lack of prospective cohort data in non-European countries and the lack of long-term (12 months or greater) controlled trials of increasing fibre intakes in adults with diabetes. CONCLUSIONS Higher-fibre diets are an important component of diabetes management, resulting in improvements in measures of glycaemic control, blood lipids, body weight, and inflammation, as well as a reduction in premature mortality. These benefits were not confined to any fibre type or to any type of diabetes and were apparent across the range of intakes, although greater improvements in glycaemic control were observed for those moving from low to moderate or high intakes. Based on these findings, increasing daily fibre intake by 15 g or to 35 g might be a reasonable target that would be expected to reduce risk of premature mortality in adults with diabetes.
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MESH Headings
- Diabetes Mellitus, Type 1/diagnosis
- Diabetes Mellitus, Type 1/diet therapy
- Diabetes Mellitus, Type 1/mortality
- Diabetes Mellitus, Type 2/diagnosis
- Diabetes Mellitus, Type 2/diet therapy
- Diabetes Mellitus, Type 2/mortality
- Diet, Diabetic/adverse effects
- Diet, Diabetic/mortality
- Diet, Healthy/adverse effects
- Diet, Healthy/mortality
- Dietary Fiber/administration & dosage
- Dietary Fiber/adverse effects
- Humans
- Nutritive Value
- Protective Factors
- Recommended Dietary Allowances
- Risk Assessment
- Risk Factors
- Risk Reduction Behavior
- Time Factors
- Treatment Outcome
- Whole Grains/adverse effects
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Affiliation(s)
- Andrew N. Reynolds
- Department of Medicine, University of Otago, Dunedin, Otago, New Zealand
- Edgar National Centre for Diabetes and Obesity Research, University of Otago, Dunedin, New Zealand
| | - Ashley P. Akerman
- Department of Medicine, University of Otago, Dunedin, Otago, New Zealand
- School of Physical Education, Sports, and Exercise Science, University of Otago, Dunedin, New Zealand
| | - Jim Mann
- Department of Medicine, University of Otago, Dunedin, Otago, New Zealand
- Edgar National Centre for Diabetes and Obesity Research, University of Otago, Dunedin, New Zealand
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Wang W, Li J, Chen X, Yu M, Pan Q, Guo L. Whole grain food diet slightly reduces cardiovascular risks in obese/overweight adults: a systematic review and meta-analysis. BMC Cardiovasc Disord 2020; 20:82. [PMID: 32070285 PMCID: PMC7027052 DOI: 10.1186/s12872-020-01337-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 01/09/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The effects of whole grain diet on cardiovascular risks in obese and overweight adults is not well established. Our goal was to conduct a systematic review and meta-analysis on the effect of whole grain diet on cardiovascular risks in obese/overweight adults. METHODS PubMed, Embase and Cochrane were systematically scanned for randomized controlled trials (RCTs), and studies were selected based on certain inclusion and exclusion criteria. The primary outcome was the effectiveness of whole grain food consumption in reducing body weight. The secondary outcomes were the effect of whole grain food consumption on cardiovascular disease (CVD) risk factors including plasma low-density lipoprotein cholesterol (LDL-C), insulin resistance index, blood pressure, body mass index (BMI), C-reactive protein (CRP), and waist circumference in obese/overweight adults. RESULTS Our results showed that whole grain consumption was associated with lower body weight (mean difference (MD) = - 0.5, 95% confidence intervals (CI) [- 0.74, 0.25], I2 = 35%, P < 0.0001) and lower CRP (MD = -0.36, 95% CI [- 0.54, - 0.18], I2 = 69%, P < 0.0001), compared with the control group. However, there were no significant differences in LDL-C (MD = -0.08, 95% CI [- 0.16, 0.00], I2 = 27%, P = 0.05), waist circumference (MD = -0.12, 95% CI [- 0.92, 0.68], I2 = 44%, P = 0.76), systolic blood pressure (MD = -0.11, 95% CI [- 1.55, 1.33], I2 = 3%, P = 0.88), diastolic blood pressure (MD = -0.44, 95% CI [- 1.44, 0.57], I2 = 15%, P = 0.39), and fasting glucose (MD = -0.05, 95% CI [- 0.12, 0.01], I2 = 31%, P = 0.11) between the two groups. CONCLUSION This study suggests that whole grain food consumption can slightly reduce body weight and CRP in obese/overweight population.
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Affiliation(s)
- Weihao Wang
- Department of Endocrinology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
| | - Jianan Li
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaoxi Chen
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Miao Yu
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qi Pan
- Department of Endocrinology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
| | - Lixin Guo
- Department of Endocrinology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
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Storz MA, Küster O. Hypocaloric, plant-based oatmeal interventions in the treatment of poorly-controlled type 2 diabetes: A review. Nutr Health 2019; 25:281-290. [PMID: 31500515 DOI: 10.1177/0260106019874683] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
BACKGROUND Lifestyle interventions, including dietary modifications, play a key role in the treatment of type 2 diabetes. By the second half of the last century, dietary oatmeal interventions had frequently been used in patients with diabetes; however, with the widespread introduction of insulin, this practice gradually fell into disuse. Within the last decades, the original oatmeal intervention, first described in 1903, has been modified towards a hypocaloric, low-fat, and plant-based intervention. AIM The aim of this review was to investigate the current role of these adapted short-term dietary oatmeal interventions in the treatment of patients suffering from poorly-controlled type 2 diabetes. A special focus was put on opportunities for and barriers to its clinical implementation and its potential mechanisms of action. METHODS The electronic databases of PubMed and Google Scholar were searched using the keywords "oat," "oats," "oatmeal," and "diabetes." RESULTS While there are a limited number of clinical studies including hypocaloric short-term dietary oatmeal interventions, there is evidence that these interventions may lead to a significant decrease in mean blood glucose levels and a significant reduction of insulin dosage in patients suffering from poorly-controlled type 2 diabetes. CONCLUSION Modified short-term dietary oatmeal interventions are an effective and economical tool in the treatment of patients suffering from poorly-controlled type 2 diabetes.
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Affiliation(s)
- Maximilian Andreas Storz
- Department of Internal Medicine and Gastroenterology, Die Filderklinik, Filderstadt-Bonlanden, Germany
| | - Onno Küster
- Department of Internal Medicine and Gastroenterology, Die Filderklinik, Filderstadt-Bonlanden, Germany
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Ch'ng LZ, Barakatun-Nisak MY, Wan Zukiman WZH, Abas F, Wahab NA. Nutritional strategies in managing postmeal glucose for type 2 diabetes: A narrative review. Diabetes Metab Syndr 2019; 13:2339-2345. [PMID: 31405640 DOI: 10.1016/j.dsx.2019.05.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 05/22/2019] [Indexed: 12/13/2022]
Abstract
Medical Nutrition Therapy (MNT) plays an essential role in overall glycemic management. Less focus is given on managing postmeal hyperglycemia despite the facts that, it is a common feature of Type 2 Diabetes (T2D). The purpose of this narrative review is to provide a comprehensive understanding of the existing literature on the nutritional approaches to improve postmeal hyperglycemia in patients with T2D. We searched multiple databases for the studies examining the nutritional approaches to manage postmeal glucose in patients with T2D. We included studies that involve human trials that were published in English for the past 10 years. Our review of the current literature indicates that the postmeal hyperglycemia can be improved with four nutritional approaches. These approaches include (i) utilizing the appropriate amount and selecting the right type of carbohydrates, (ii) using specific types of dietary protein, (iii) manipulating the meal timing and orders and (iv) others (promoting postmeal physical activity, incorporating diabetes-specific formula and certain functional foods). The potential mechanisms underlying these approaches are discussed and the identified gaps warranted further research. This array of nutritional strategies provide a set of options for healthcare professionals to facilitate patients with T2D in achieving the optimal level of postmeal glucose.
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Affiliation(s)
- Lau Zhi Ch'ng
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra, Malaysia
| | - Mohd Yusof Barakatun-Nisak
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra, Malaysia; Research Centre of Excellent for Nutrition and Noncommunicable Diseases (NNCD), Faculty of Medicine and Health Sciences, Universiti Putra, Malaysia.
| | | | - Faridah Abas
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra, Malaysia
| | - Norasyikin A Wahab
- Department of Medicine, Faculty of Medicine, Universiti Kebangsaan, Malaysia
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Impact of different dietary approaches on blood lipid control in patients with type 2 diabetes mellitus: a systematic review and network meta-analysis. Eur J Epidemiol 2019; 34:837-852. [PMID: 31201670 DOI: 10.1007/s10654-019-00534-1] [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] [Received: 02/08/2019] [Accepted: 06/08/2019] [Indexed: 12/11/2022]
Abstract
The aim of this study was to assess the effects of different dietary approaches on low-density lipoprotein (LDL) cholesterol, high-density lipoprotein (HDL) cholesterol, and triglyceride (TG) levels in patients with type 2 diabetes (T2D) by applying network meta-analysis (NMA). Systematic electronic and hand searches were conducted until January 2018. Randomized controlled trials (RCTs) with an intervention period of ≥ 12 weeks, focussing on adults with T2D, and comparing dietary approaches regarding LDL, HDL or TGs, were included. For each outcome measure, random effects NMA was performed in order to determine the effect of each dietary approach compared to every other dietary intervention. Mean differences (MDs) and 95% confidence intervals (95% CIs) were calculated, and for the ranking, the surface under the cumulative ranking curves (SUCRA) was determined. Additionally, the credibility of evidence was evaluated. 52 RCTs (44 for LDL, 48 for HDL and 52 for TGs) comparing nine dietary approaches (low fat, vegetarian, Mediterranean, high protein, moderate carbohydrate, low carbohydrate, control, low glycaemic index/glycaemic load and Palaeolithic diet) enrolling 5360 T2D patients were included. The vegetarian diet most effectively reduced LDL levels [MD (95% CI): - 0.33 (- 0.55, - 0.12) mmol/L; compared to the control diet]. The Mediterranean diet beneficially raised HDL [MD (95% CI): 0.09 (0.04, 0.15) mmol/L] and decreased TG levels [MD (95% CI): - 0.41 (- 0.72, - 0.10) mmol/L] compared to the control diet. The Mediterranean diet was the most effective dietary approach to manage diabetic dyslipidaemia altogether (SUCRA: 79%). The overall findings are mainly limited by low credibility of evidence.
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Jovanovski E, Khayyat R, Zurbau A, Komishon A, Mazhar N, Sievenpiper JL, Blanco Mejia S, Ho HVT, Li D, Jenkins AL, Duvnjak L, Vuksan V. Should Viscous Fiber Supplements Be Considered in Diabetes Control? Results From a Systematic Review and Meta-analysis of Randomized Controlled Trials. Diabetes Care 2019; 42:755-766. [PMID: 30617143 DOI: 10.2337/dc18-1126] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 09/19/2018] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Evidence from randomized controlled trials (RCTs) suggests that viscous dietary fiber may offer beneficial effects on glycemic control and, thus, an improved cardiovascular disease risk profile. Our purpose was to conduct a systematic review and meta-analysis of RCTs to synthesize the therapeutic effect of viscous fiber supplementation on glycemic control in type 2 diabetes. RESEARCH DESIGN AND METHODS MEDLINE, Embase, and Cochrane Central Register of Controlled Trials were searched through 15 June 2018. We included RCTs ≥3 weeks in duration that assessed the effects of viscous fiber on markers of glycemic control in type 2 diabetes. Two independent reviewers extracted data. Data were pooled using the generic inverse variance method and expressed as mean differences (MD) with 95% CIs. Heterogeneity was assessed (Cochran Q statistic) and quantified (I 2 statistic). The Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach was used to evaluate the overall certainty of the evidence. RESULTS We identified 28 eligible trial comparisons (n = 1,394). Viscous fiber at a median dose of ∼13.1 g/day significantly reduced HbA1c (MD -0.58% [95% CI -0.88, -0.28]; P = 0.0002), fasting blood glucose (MD -0.82 mmol/L [95% CI -1.32, -0.31]; P = 0.001), and HOMA-insulin resistance (IR) (MD -1.89 [95% CI -3.45, -0.33]; P = 0.02) compared with control and in addition to standard of care. The certainty of evidence was graded moderate for HbA1c, fasting glucose, fasting insulin, and HOMA-IR and low for fructosamine. CONCLUSIONS Viscous fiber supplements improve conventional markers of glycemic control beyond usual care and should be considered in the management of type 2 diabetes.
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Affiliation(s)
- Elena Jovanovski
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Rana Khayyat
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Andreea Zurbau
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Allison Komishon
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Canada
| | - Nourah Mazhar
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada
| | - John L Sievenpiper
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada.,Toronto 3D Knowledge Synthesis and Clinical Trials Unit, St. Michael's Hospital, Toronto, Canada.,Division of Endocrinology and Metabolism, St. Michael's Hospital, Toronto, Canada.,Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Canada
| | - Sonia Blanco Mejia
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada.,Toronto 3D Knowledge Synthesis and Clinical Trials Unit, St. Michael's Hospital, Toronto, Canada
| | - Hoang Vi Thanh Ho
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Canada
| | - Dandan Li
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Alexandra L Jenkins
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Canada
| | - Lea Duvnjak
- Vuk Vrhovac University Clinic for Diabetes, Endocrinology and Metabolic Diseases, Merkur University Hospital, University of Zagreb School of Medicine, Zagreb, Croatia
| | - Vladimir Vuksan
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Canada .,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada.,Division of Endocrinology and Metabolism, St. Michael's Hospital, Toronto, Canada.,Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Canada
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Naked Oat ( Avena nuda L.) Oligopeptides:Immunomodulatory Effects on Innate and AdaptiveImmunity in Mice via Cytokine Secretion, AntibodyProduction, and Th Cells Stimulation. Nutrients 2019; 11:nu11040927. [PMID: 31022989 PMCID: PMC6520772 DOI: 10.3390/nu11040927] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 04/16/2019] [Accepted: 04/22/2019] [Indexed: 02/02/2023] Open
Abstract
The study aimed to investigate the immunomodulatory activity of oligopeptides derived from oat (Avena nuda L.) (OOPs). Healthy female BALB/c mice were randomly assigned to five groups, given deionized water (control) and 0.25, 0.5, 1.0, and 2.0 g/kg body weight (BW) of OOPs daily by intragastric administration. Seven assays were performed to determine the immunomodulatory effects of OOPs on immune organ ratios, cellular and humoral immune responses, macrophage phagocytosis, and natural killer (NK) cell activity. Spleen T lymphocyte subpopulations (by flow cytometry), serum cytokine and immunoglobulin levels (by multiplex sandwich immunoassays) were determined to evaluate how OOPs affected the immune system. Our results showed that OOPs could significantly improve innate and adaptive immune responses in mice through the enhancement of cell-mediated and humoral immunity, macrophage phagocytosis capacity, and NK cell activity. We concluded that the immunomodulatory effects might be attributed to increased T and Th cell percentages, serum interferon (IFN)-γ, interleukin (IL)-1 α, IL-2, IL-6, IL-10, IL-12, tumor necrosis factor (TNF)- α, and granulocyte-macrophage colony-stimulating factor (GM-CSF) secretions as well as immunoglobulin (Ig) A, IgG, and IgM productions. These results indicate that dietary OOPs could be considered as promising immunomodulators with dosages ranging from 0.25 to 2.0 g/kg BW.
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