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Bohl M, Gregersen S, Zhong Y, Hebelstrup KH, Hermansen K. Beneficial glycaemic effects of high-amylose barley bread compared to wheat bread in type 2 diabetes. Eur J Clin Nutr 2024; 78:243-250. [PMID: 37940671 DOI: 10.1038/s41430-023-01364-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 10/20/2023] [Accepted: 10/23/2023] [Indexed: 11/10/2023]
Abstract
BACKGROUND Cereals foods with a high content of dietary fibres or amylose have potential to lower postprandial glucose levels. Optimisation of cereal foods may improve management of type 2 diabetes (T2D). METHODS We investigated the impact on 4 h postprandial glucose responses given as incremental area under curve (iAUC) of bread made of either 50% RNAi-based (genetically modified) amylose-only barley flour (AmOn) (and 50% wheat flour), 50% hulless barley flour (and 50% wheat flour) or 75% hulless barley (and 25% wheat flour) in subjects with T2D compared with 100% wheat flour bread. DESIGN Twenty adults with T2D were randomly allocated to one of four breads at four separate visits. We measured fasting and 4 h postprandial responses of glucose, insulin, glucagon, triacylglycerol (TG), free fatty acids (FFA), glucagon-like peptide-1 (GLP-1) and gastric inhibitory polypeptide (GIP). Mixed model ANOVA was used to examine the differences. RESULTS Bread made from 50% AmOn lowered the 4 h postprandial glucose by 34%, 27%, 23% (P < 0.05) compared with 100% wheat, 50% or 75% hulless barley, respectively. Bread made from 75% hulless barley reduced the postprandial glucose response (iAUC) by 11% (P < 0.05) compared to 100% wheat bread. Postprandial insulin responses (iAUC) were reduced for 50% AmOn compared with 100% wheat and 50% hulless barley and for 75% hulless compared to 50% hulless barley bread (P < 0.05). 4 h postprandial glucagon (tAUC) did not differ between the four bread types (P > 0.05). Lower postprandial GIP (iAUC) was observed after all barley breads compared to 100% wheat (P < 0.05), whereas no difference was seen in postprandial GLP-1. Postprandial TG and FFA (tAUC) were difficult to judge due to differences in fasting values. CONCLUSIONS Bread made by replacing wheat flour with either 50% high-amylose or 75% hulless barley flour lowered postprandial glucose responses compared to 100% wheat bread indicating a beneficial impact on glucose regulation in T2D subjects. This trial was registered at clinicaltrials.gov as NCT04646746.
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Affiliation(s)
- Mette Bohl
- Steno Diabetes Centre Aarhus, Aarhus University Hospital, 8200, Aarhus N, Denmark.
- Diagnostic Centre, University Research Clinic for Innovative Patient Pathways, Silkeborg Regional Hospital, 8600, Silkeborg, Denmark.
| | - Søren Gregersen
- Steno Diabetes Centre Aarhus, Aarhus University Hospital, 8200, Aarhus N, Denmark
- Department of Clinical Medicine, Aarhus University, 8200, Aarhus N, Denmark
| | - Yuyue Zhong
- Department of Plant and Environmental Sciences, University of Copenhagen, 1871, Frederiksberg C, Denmark
| | - Kim Henrik Hebelstrup
- Department of Agroecology, Section for Crop Genetics and Biotechnology, Aarhus University, 4200, Slagelse, Denmark
- Plantcarb Aps, 2970, Hørsholm, Denmark
| | - Kjeld Hermansen
- Department of Clinical Medicine, Aarhus University, 8200, Aarhus N, Denmark
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, 8200, Aarhus N, Denmark
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Wang L, Wang H, Liu M, Xu J, Bian H, Chen T, You E, Deng C, Wei Y, Yang T, Shen Y. Effects of different fertilization conditions and different geographical locations on the diversity and composition of the rhizosphere microbiota of Qingke ( Hordeum vulgare L.) plants in different growth stages. Front Microbiol 2023; 14:1094034. [PMID: 37213511 PMCID: PMC10192736 DOI: 10.3389/fmicb.2023.1094034] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 04/12/2023] [Indexed: 05/23/2023] Open
Abstract
Introduction The excessive use of chemical fertilizer causes increasing environmental and food security crisis. Organic fertilizer improves physical and biological activities of soil. Rhizosphere microbiota, which consist of highly diverse microorganisms, play an important role in soil quality. However, there is limited information about the effects of different fertilization conditions on the growth of Qingke plants and composition of the rhizosphere microbiota of the plants. Methods In this study, we characterized the rhizosphere microbiota of Qingke plants grown in three main Qingke-producing areas (Tibet, Qinghai, and Gansu). In each of the three areas, seven different fertilization conditions (m1-m7, m1: Unfertilized; m2: Farmer Practice; m3: 75% Farmer Practice; m4: 75% Farmer Practice +25% Organic manure; m5: 50% Farmer Practice; m6: 50% Farmer Practice +50% Organic manure; m7: 100% Organic manure) were applied. The growth and yields of the Qingke plants were also compared under the seven fertilization conditions. Results There were significant differences in alpha diversity indices among the three areas. In each area, differences in fertilization conditions and differences in the growth stages of Qingke plants resulted in differences in the beta diversity of the rhizosphere microbiota. Meanwhile, in each area, fertilization conditions, soil depths, and the growth stages of Qingke plants significantly affected the relative abundance of the top 10 phyla and the top 20 bacterial genera. For most of microbial pairs established through network analysis, the significance of their correlations in each of the microbial co-occurrence networks of the three experimental sites was different. Moreover, in each of the three networks, there were significant differences in relative abundance and genera among most nodes (i.e., the genera Pseudonocardia, Skermanella, Pseudonocardia, Skermanella, Aridibacter, and Illumatobacter). The soil chemical properties (i.e., TN, TP, SOM, AN, AK, CEC, Ca, and K) were positively or negatively correlated with the relative abundance of the top 30 genera derived from the three main Qingke-producing areas (p < 0.05). Fertilization conditions markedly influenced the height of a Qingke plant, the number of spikes in a Qingke plant, the number of kernels in a spike, and the fresh weight of a Qingke plant. Considering the yield, the most effective fertilization conditions for Qingke is combining application 50% chemical fertilizer and 50% organic manure. Conclusion The results of the present study can provide theoretical basis for practice of reducing the use of chemical fertilizer in agriculture.
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Affiliation(s)
- Lei Wang
- Laboratory for Research and Utilization of Qinghai Tibetan Plateau Germplasm Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Qinghai Provincial Key Laboratory of Crop Molecular Breeding, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
| | - Handong Wang
- Laboratory for Research and Utilization of Qinghai Tibetan Plateau Germplasm Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Qinghai Provincial Key Laboratory of Crop Molecular Breeding, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
| | - Meijin Liu
- Gannan Institute of Agricultural Sciences, Hezuo, China
| | - Jinqing Xu
- Laboratory for Research and Utilization of Qinghai Tibetan Plateau Germplasm Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Qinghai Provincial Key Laboratory of Crop Molecular Breeding, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
| | - Haiyan Bian
- Laboratory for Research and Utilization of Qinghai Tibetan Plateau Germplasm Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Qinghai Provincial Key Laboratory of Crop Molecular Breeding, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
| | - Tongrui Chen
- Laboratory for Research and Utilization of Qinghai Tibetan Plateau Germplasm Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Qinghai Provincial Key Laboratory of Crop Molecular Breeding, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- University of Chinese Academy of Sciences, Beijing, China
| | - En You
- Laboratory for Research and Utilization of Qinghai Tibetan Plateau Germplasm Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Qinghai Provincial Key Laboratory of Crop Molecular Breeding, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Chao Deng
- Laboratory for Research and Utilization of Qinghai Tibetan Plateau Germplasm Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Qinghai Provincial Key Laboratory of Crop Molecular Breeding, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Youhai Wei
- Academy of Agriculture and Forestry Science, Qinghai University, Xining, China
| | - Tianyu Yang
- Crop Research Institute, Gansu Academy of Agricultural Sciences, Lanzhou, China
| | - Yuhu Shen
- Laboratory for Research and Utilization of Qinghai Tibetan Plateau Germplasm Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Qinghai Provincial Key Laboratory of Crop Molecular Breeding, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- University of Chinese Academy of Sciences, Beijing, China
- Innovation Academy for Seed Design, Chinese Academy of Sciences, Xining, China
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Meng Y, Meng Q, Li C, Wang M, Li S, Ying J, Zheng H, Bai S, Xue Y, Shen Q. A comparison between partially peeled hulless barley and whole grain hulless barley: beneficial effects on the regulation of serum glucose and the gut microbiota in high-fat diet-induced obese mice. Food Funct 2023; 14:886-898. [PMID: 36537611 DOI: 10.1039/d2fo02098j] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Though the hypoglycemic effect of whole grain hulless barley (Hordeum vulgare L.) has been documented, whether glucose metabolism would be improved by hulless barley with moderate peeling is still unclear. The purpose of this study was to compare the differences in glucose metabolism and gut microbiota between partially (10%) peeled hulless barley (PHB) and whole grain hulless barley (WHB) intervention in obese mice induced by a high-fat diet. The results showed that both PHB and WHB interventions significantly improved the impaired glucose tolerance, fat accumulation in fat and liver tissues, and the impaired intestinal barrier in mice. The dysbiosis of gut microbiota was improved and the relative abundance of some beneficial bacteria such as genera Lactobacillus, Bifidobacterium, Ileibacterium, and norank_f__Mutibaculaceae was increased by both, PHB and WHB, interventions. Spearman correlation analysis revealed that the abundance of Bifidobacterium was negatively correlated with the area under the blood glucose curve. In conclusion, our results provide evidence that hulless barley improved the gut microbiota and impaired glucose tolerance in mice, and also showed that there was little loss of hypoglycemic effect even when hulless barley was moderately peeled.
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Affiliation(s)
- Yantong Meng
- National Engineering and Technology Research Center for Fruits and Vegetables, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, P.R. China.
| | - Qingjia Meng
- COFCO Nutrition and Health Research Institute Co., Ltd, Beijing, 100020, P.R. China.
| | - Chang Li
- National Engineering and Technology Research Center for Fruits and Vegetables, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, P.R. China.
| | - Mengqian Wang
- COFCO Nutrition and Health Research Institute Co., Ltd, Beijing, 100020, P.R. China.
| | - Siqi Li
- National Engineering and Technology Research Center for Fruits and Vegetables, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, P.R. China.
| | - Jian Ying
- COFCO Nutrition and Health Research Institute Co., Ltd, Beijing, 100020, P.R. China.
| | - Hao Zheng
- National Engineering and Technology Research Center for Fruits and Vegetables, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, P.R. China.
| | - Shuqun Bai
- COFCO Nutrition and Health Research Institute Co., Ltd, Beijing, 100020, P.R. China.
| | - Yong Xue
- National Engineering and Technology Research Center for Fruits and Vegetables, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, P.R. China. .,National Center of Technology Innovation (Deep Processing of Highland Barley) in Food Industry, China Agricultural University, No. 17 Qinghua East Road, Haidian District, Beijing, 100083, P.R. China.,Key Laboratory of Plant Protein and Grain Processing, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Qun Shen
- National Engineering and Technology Research Center for Fruits and Vegetables, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, P.R. China. .,National Center of Technology Innovation (Deep Processing of Highland Barley) in Food Industry, China Agricultural University, No. 17 Qinghua East Road, Haidian District, Beijing, 100083, P.R. China.,Key Laboratory of Plant Protein and Grain Processing, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
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Zhang J, Deng H, Bai J, Zhou X, Zhao Y, Zhu Y, McClements DJ, Xiao X, Sun Q. Health-promoting properties of barley: A review of nutrient and nutraceutical composition, functionality, bioprocessing, and health benefits. Crit Rev Food Sci Nutr 2023; 63:1155-1169. [PMID: 36394558 DOI: 10.1080/10408398.2021.1972926] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Barley is one of the world's oldest cereal crops forming an important component of many traditional diets. Barley is rich in a variety of bioactive phytochemicals with potentially health-promoting effects. However, its beneficial nutritional attributes are not being fully realized because of the limited number of foods it is currently utilized in. It is therefore crucial for the food industry to produce novel barley-based foods that are healthy and cater to customers' tastes. This article reviews the nutritional and functional characteristics of barley, with an emphasis on its ability to improve glucose/lipid metabolism. Then, recent trends in barley product development are discussed. Finally, current limitations and future research directions in glucolipid modulation mechanisms and barley bioprocessing are discussed.
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Affiliation(s)
- Jiayan Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Huan Deng
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Juan Bai
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Xinghua Zhou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Yansheng Zhao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Ying Zhu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - David Julian McClements
- Department of Food Science, University of Massachusetts Amherst, Amherst, Massachusetts, USA
- Department of Food Science & Bioengineering, Zhejiang Gongshang University, Hangzhou, Zhejiang, China
| | - Xiang Xiao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Quancai Sun
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
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Distribution of Core Root Microbiota of Tibetan Hulless Barley along an Altitudinal and Geographical Gradient in the Tibetan Plateau. Microorganisms 2022; 10:microorganisms10091737. [PMID: 36144339 PMCID: PMC9504843 DOI: 10.3390/microorganisms10091737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/17/2022] [Accepted: 08/18/2022] [Indexed: 11/20/2022] Open
Abstract
The Tibetan Plateau is regarded as the third pole of the earth and is one of the least explored places on the planet. Tibetan hull-less barley (Hordeum vulgare L. var. nudum) is the only cereal crop grown widely in the Tibetan Plateau as a staple food. Extensive and long-term cropping of barley may influence the soil’s chemical and biological properties, including microbial communities. However, microbiota associated with hull-less barley is largely unexplored. This study aimed to reveal the composition and diversity of bacterial and fungal communities associated with the hull-less barley at different elevations in the Tibetan Plateau. The core bacterial and fungal taxa of Tibetan hull-less barley were identified, with Bacillaceae, Blastocatellaceae, Comamonadaceae, Gemmatimonadaceae, Planococcaceae, Pyrinomonadaceae, Sphingomonadaceae, and Nitrospiraceae being the most abundant bacterial taxa and Ceratobasidiaceae, Chaetomiaceae, Cladosporiaceae, Didymellaceae, Entolomataceae, Microascaceae, Mortierellaceae, and Nectriaceae being the most abundant fungal taxa (relative abundance > 1%). Both bacterial and fungal diversities of hull-less barley were affected by altitude and soil properties such as total carbon, total nitrogen, and available phosphorus and potassium. Both bacterial and fungal diversities showed a significant negative correlation with altitude, indicating that the lower elevations provide a conducive environment for the survival and maintenance of hull-less barley-associated microbiota. Our results also suggest that the high altitude-specific microbial taxa may play an important role in the adaptation of the hull-less barley to the earth’s third pole.
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Li K, Zhang Q, Cai H, He R, Nima Q, Li Y, Suolang D, Cidan Z, Wangqing P, Zhao X, Li J, Liu Q. Association of Tibetan Habitual Food and Metabolic Syndrome Among Tibetan People in China: A Cross-Sectional Study. Front Nutr 2022; 9:888317. [PMID: 35811962 PMCID: PMC9263562 DOI: 10.3389/fnut.2022.888317] [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: 03/05/2022] [Accepted: 05/24/2022] [Indexed: 11/13/2022] Open
Abstract
Background The association between habitual food intake in Tibet and metabolic syndrome (MetS) is largely unclear. Objective To examine the association between Tibetan habitual food intake and MetS among Tibetan adults. Methods A population-based cross-sectional study, named the China Multi-Ethnic Cohort (CMEC) study, was conducted between 2018 and 2019. We used data from all Tibetans in the CMEC in the current study. The participants, 1,954 men and 3,060 women aged 18–79 years, were from Lhasa, Tibet Autonomous Region, Tibet. The habitual dietary intake was assessed using a food frequency questionnaire (FFQ). MetS was defined according to ATP III guidelines. Multivariate logistic regression was used to estimate the association between five Tibetan habitual foods and MetS. Results Tsampa, butter tea, and Qing cha intake were associated with reduced prevalence of MetS. Compared with the lowest quartile of each food, odds ratios (ORs) and their 95% confidence intervals (95% CIs) of medium and high Tsampa intake were 0.59 (0.41–0.85) and 0.53 (0.36–0.77), ORs (95% CIs) of butter tea were 0.67 (0.52–0.88) and 0.61 (0.46–0.81), and Qing cha were 0.85 (0.71–1.03) and 0.75 (0.60–0.93), respectively. When exploring the joint effects of these three foods on MetS, the adjusted ORs and their 95% CIs were 0.65 (0.49–0.87) for the middle intake group and 0.59 (0.42–0.83) for the high intake group as compared with the never/rarely group (p = 0.022 for trend). Associations of MetS with Tibetan noodles and raw beef were not observed. Conclusion Tsampa, butter tea, and Qing cha were negatively associated with MetS. The recommendation of increasing the intake of these foods may be beneficial for MetS prevention.
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Affiliation(s)
- Kehan Li
- Department of Health Behavior and Social Medicine, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Qiang Zhang
- Center for Disease Control and Prevention of Tibet Autonomous Region, Lhasa, China
| | - Hui Cai
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN, United States
| | - Ruifeng He
- Center for Disease Control and Prevention of Tibet Autonomous Region, Lhasa, China
| | - Qucuo Nima
- Center for Disease Control and Prevention of Tibet Autonomous Region, Lhasa, China
| | - Yajie Li
- Center for Disease Control and Prevention of Tibet Autonomous Region, Lhasa, China
| | - Deji Suolang
- Center for Disease Control and Prevention of Tibet Autonomous Region, Lhasa, China
| | - Zhuoga Cidan
- Center for Disease Control and Prevention of Tibet Autonomous Region, Lhasa, China
| | - Pingcuo Wangqing
- Center for Disease Control and Prevention of Tibet Autonomous Region, Lhasa, China
| | - Xing Zhao
- Department of Epidemiology and Health Statistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Jingzhong Li
- Center for Disease Control and Prevention of Tibet Autonomous Region, Lhasa, China
- *Correspondence: Jingzhong Li,
| | - Qiaolan Liu
- Department of Health Behavior and Social Medicine, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
- Qiaolan Liu,
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Beneficial Effects of Partly Milled Highland Barley on the Prevention of High-Fat Diet-Induced Glycometabolic Disorder and the Modulation of Gut Microbiota in Mice. Nutrients 2022; 14:nu14040762. [PMID: 35215411 PMCID: PMC8877997 DOI: 10.3390/nu14040762] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 02/07/2022] [Accepted: 02/08/2022] [Indexed: 02/05/2023] Open
Abstract
The nutritional functions of highland barley (HB) are superior to those of regular cereals and have attracted increasing attention in recent years. The objective of this study was to investigate whether partly milled highland barley (PHB) can regulate the serum glucose and lipid disorders of mice fed a high-fat diet (HFD) and to further explore their potential gut microbiota modulatory effect. Our results showed that PHB supplementation significantly reduced fasting blood glucose (FBG) and improved oral glucose tolerance. Histological observations confirmed the ability of PHB to alleviate liver and intestine damage. Furthermore, the results of 16S amplicon sequencing revealed that PHB prevented a HFD-induced gut microbiota dysbiosis, enriching some beneficial bacteria, such as Lactobacillus, Bifidobacterium, and Ileibacterium, and reducing several HFD-dependent taxa (norank_f_Desulfovibrionaceae, Blautia, norank_f_Lachnospiraceae, unclassified_f_Lachnospiraceae, and Colidextribacter). In addition, the increase of Lactobacillus and Bifidobacterium presence has a slightly dose-dependent relationship with the amount of the added PHB. Spearman correlation analysis revealed that Lactobacillus and Bifidobacterium were negatively correlated with the blood glucose level of the oral glucose tolerance test. Overall, our results provide important information about the processing of highland barley to retain its hypoglycemic effect and improve its acceptability and biosafety.
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9
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Liu ZH, Li B. (-)-Epicatechin and β-glucan from highland barley grain modulated glucose metabolism and showed synergistic effect via Akt pathway. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104793] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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10
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Liu ZH, Li B. Chlorogenic acid and β-glucan from highland barley grain ameliorate β-cell dysfunction via inhibiting apoptosis and improving cell proliferation. Food Funct 2021; 12:10040-10052. [PMID: 34515712 DOI: 10.1039/d1fo01532j] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Recent studies have reported that highland barley as a whole grain diet has anti-hyperglycemic effects, however little information is available about the active compounds that ameliorate pancreatic β-cell dysfunction and the related mechanisms. In this study, chlorogenic acid (CA) and β-glucan (BG) were identified as the active compounds that ameliorated β-cell dysfunction. CA ameliorated β-cell dysfunction by inhibiting cell apoptosis and improving glucose-stimulated insulin secretion via targeting G protein-coupled receptor 40 (GPR40) and regulating the phospholipase C β (PLCβ) pathway. BG ameliorated β-cell dysfunction by improving cell proliferation via targeting mammalian target of rapamycin (mTOR) and regulating the protein kinase B (Akt)/glycogen synthase kinase-3β (GSK-3β) pathway. Furthermore, CA and BG improved β-cell sensitivity and pancreatic insulin secretion, and inhibited β-cell apoptosis in impaired glucose tolerance (IGT) mice. Notably, CA restored homeostasis model assessment (HOMA)-β values and Ca2+-ATP and K+-ATP levels back to normal levels, and BG at 300 mg per kg BW restored β-cell insulin contents back to normal levels in IGT mice. Additionally, the combination of CA and BG had an additive effect on ameliorating β-cell dysfunction. These results help develop whole highland barley grain as a functional food for preventing type 2 diabetes by ameliorating pancreatic β-cell damage.
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Affiliation(s)
- Ze-Hua Liu
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
| | - Bo Li
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China. .,Key Laboratory of Functional Dairy, Ministry of Education, Beijing 100083, China
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Chen M, Tian S, Li S, Pang X, Sun J, Zhu X, Lv F, Lu Z, Li X. β-Glucan Extracted from Highland Barley Alleviates Dextran Sulfate Sodium-Induced Ulcerative Colitis in C57BL/6J Mice. Molecules 2021; 26:5812. [PMID: 34641356 PMCID: PMC8510048 DOI: 10.3390/molecules26195812] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/20/2021] [Accepted: 09/20/2021] [Indexed: 12/26/2022] Open
Abstract
Inflammatory bowel disease (IBD), which significantly affects human health, has two primary presentations: Crohn's disease and ulcerative colitis (UC). Highland barley is the most common food crop for Tibetans and contains much more β-glucan than any other crop. Highland barley β-glucan (HBBG) can relieve the gastrointestinal dysfunction and promote intestines health. This study aimed to evaluate whether HBBG can relieve UC in mice. A mouse model of UC was established by adding 2% dextran sulfate sodium (DSS) to drinking water for 1 week. UC was alleviated after the introduction of the HBBG diet, as indicated by reductions in the disease activity index (DAI) score, histopathological damage, and the concentration of colonic myeloperoxidase (MPO), along with an improvement in colonic atrophy. Furthermore, we found that HBBG can increase the relative transcriptional levels of genes encoding ZO-1, claudin-1, occludin, and mucin2 (MUC2), thereby reducing intestinal permeability. Additionally, HBBG maintained the balance of proinflammatory and anti-inflammatory cytokines and modulated the structure of the intestinal flora.
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Affiliation(s)
- Minjie Chen
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (M.C.); (S.L.); (X.Z.)
| | - Shuhua Tian
- Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing, College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing 210023, China; (S.T.); (X.P.); (J.S.)
| | - Shichao Li
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (M.C.); (S.L.); (X.Z.)
| | - Xinyi Pang
- Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing, College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing 210023, China; (S.T.); (X.P.); (J.S.)
| | - Jing Sun
- Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing, College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing 210023, China; (S.T.); (X.P.); (J.S.)
| | - Xiaoyu Zhu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (M.C.); (S.L.); (X.Z.)
| | - Fengxia Lv
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (M.C.); (S.L.); (X.Z.)
| | - Zhaoxin Lu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (M.C.); (S.L.); (X.Z.)
| | - Xiangfei Li
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (M.C.); (S.L.); (X.Z.)
- Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing, College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing 210023, China; (S.T.); (X.P.); (J.S.)
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12
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Li T, Tang X, Liu Y, Li Y, He B. Dietary patterns and metabolic syndrome among urbanized Tibetans: A cross-sectional study. ENVIRONMENTAL RESEARCH 2021; 200:111354. [PMID: 34102164 DOI: 10.1016/j.envres.2021.111354] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 05/05/2021] [Accepted: 05/16/2021] [Indexed: 06/12/2023]
Abstract
The prevalence of metabolic syndrome (MetS) and the major dietary patterns among urbanized Tibetans are unclear. The present study aimed to investigate the prevalence of MetS among Jiarong Tibetans in Aba Plateau, identify the major dietary patterns, and evaluate their association with the risk of MetS. In this cross-sectional study on 476 subjects, 18-80-years-old, dietary intakes were evaluated using a simplified food frequency questionnaire (SFFQ). MetS was defined according to the International Diabetes Federation (IDF) guidelines. Principal component analysis was performed to assess the major dietary patterns. Multivariate logistic regression analysis examined the associations between dietary patterns and the risk of MetS. The prevalence of Mets in the population was 37.6%. Herein, three major dietary patterns were extracted: traditional Tibetan, urbanized, and healthy dietary patterns. After adjusting for potential confounders (Model 1: adjusted for sex and age; Model 2: adjusted for sex, age, smoking status, drinking situation, physical activity level and total energy intake), subjects in the highest tertile of the healthy dietary had a lower risk of MetS compared to those from the lowest tertile. Also, no significant statistical association was established between the risk of MetS and the traditional Tibetan and urbanized diet.
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Affiliation(s)
- Tingxin Li
- Health Management Center, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, China; Chinese Academy of Sciences Sichuan Translational Medicine Research, Chengdu, 610072, China.
| | - Xiaoyue Tang
- Department of Nutrition Food Hygiene and Toxicology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, China
| | - Yuping Liu
- Health Management Center, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, China; Chinese Academy of Sciences Sichuan Translational Medicine Research, Chengdu, 610072, China
| | - Yun Li
- Department of Nutrition Food Hygiene and Toxicology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, China.
| | - Baoming He
- Department of Neurology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, China.
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Liu ZH, Li B. Procyanidin B1 and p-Coumaric Acid from Highland Barley Grain Showed Synergistic Effect on Modulating Glucose Metabolism via IRS-1/PI3K/Akt Pathway. Mol Nutr Food Res 2021; 65:e2100454. [PMID: 34342938 DOI: 10.1002/mnfr.202100454] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/28/2021] [Indexed: 12/18/2022]
Abstract
INTRODUCTION Phenolic extract in highland barley grain has showed hypoglycemic effect, while little information is available about the active compounds and whether there exist additive or synergistic effect on modulating glucose metabolism. METHODS AND RESULTS Procyanidin B1 (PB) and p-coumaric acid (CA) are the active compounds in highland barley grain and show synergistic effect on improving glucose uptake and glycogen synthesis by upregulating glucose transporter (GLUT4) and downregulating glycogen synthase kinase-3β (GSK-3β) protein expression, respectively. The mechanism may be attributed to target insulin receptor (IRβ) and regulate insulin receptor substrate-1 (IRS-1)/phosphatidylinositol 3-kinase (PI3K)/ protein kinase B (Akt) pathway. Furthermore, PB + CA exhibits synergistic effect on restoring glucose intolerance and insulin resistance, and improving hepatic glycogen synthesis in impaired glucose tolerance (IGT) mice. The postprandial blood glucose (PBG), homeostasis model assessment (HOMA)-IR values and serum insulin contents in PB + CA-treated IGT mice with dosage of 300 mg kg-1 BW are reversed to normal levels. Additionally, PC + CA shows additive effect on inhibiting gluconeogenesis in vitro and in vivo. CONCLUSION PB + CA in highland barley grain synergistically modulate glucose metabolism. These results may provide evidence of whole highland barley grain diet achieve superior effect on restoring IGT than isolated components.
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Affiliation(s)
- Ze-Hua Liu
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Bo Li
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China.,Key Laboratory of Functional Dairy, Ministry of Education, Beijing, 100083, China
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14
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Obadi M, Sun J, Xu B. Highland barley: Chemical composition, bioactive compounds, health effects, and applications. Food Res Int 2021; 140:110065. [DOI: 10.1016/j.foodres.2020.110065] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 12/16/2020] [Accepted: 12/21/2020] [Indexed: 12/15/2022]
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15
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Characterization of the potent odorants in Tibetan Qingke Jiu by sensory analysis, aroma extract dilution analysis, quantitative analysis and odor activity values. Food Res Int 2020; 137:109349. [DOI: 10.1016/j.foodres.2020.109349] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 04/29/2020] [Accepted: 05/22/2020] [Indexed: 12/29/2022]
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16
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Deng N, He Z, Guo R, Zheng B, Li T, Liu RH. Highland Barley Whole Grain ( Hordeum vulgare L.) Ameliorates Hyperlipidemia by Modulating Cecal Microbiota, miRNAs, and AMPK Pathways in Leptin Receptor-Deficient db/db Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:11735-11746. [PMID: 32985184 DOI: 10.1021/acs.jafc.0c04780] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The mechanisms of highland barley whole grain (BWG) with rich phenolics on obese db/db mice were investigated in this study. Oral consumption of BWG reduced food intake, body weight, organ/body weight indexes of liver and fat, levels of serum and hepatic lipids, liver injury, and oxidative stress. Furthermore, BWG recovered the disorder of cecal microbiota by augmenting the Bacteroidetes/Firmicutes ratio and Alistipes abundance and decreasing the abundances of Bacteroides and Desulfovibrionaceae to modulate lipid metabolism-related genes. BWG inhibited fatty acid biosynthesis via upregulating the phosphorylation of AMP-activated protein kinase α, while downregulating sterol regulatory element binding protein-1c, fatty acid synthase (FAS), and stearoyl-CoA desaturase 1 levels. BWG also significantly downregulated miRNA-122, miRNA-33, miRNA-34a, and miRNA-206 levels. Accordingly, BWG exhibited hypolipidemic potential through modulating cecal microbiota, AMPK/SREBP-1c/FAS pathway, and related miRNAs, triggering the alleviation of dyslipidemia. These findings suggested BWG as an effective candidate to ameliorate the symptoms of hyperlipidemia.
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Affiliation(s)
- Na Deng
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Ziqian He
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Ruixue Guo
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Bisheng Zheng
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
- Guangdong ERA Food & Life Health Research Institute, Guangzhou 510670, China
| | - Tong Li
- Department of Food Science, Cornell University, Ithaca, New York 14853, United States
| | - Rui Hai Liu
- Department of Food Science, Cornell University, Ithaca, New York 14853, United States
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17
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Rice bran phenolic extract supplementation ameliorates impaired lipid metabolism in high-fat-diet fed mice through AMPK activation in liver. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104131] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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18
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Guo T, Horvath C, Chen L, Chen J, Zheng B. Understanding the nutrient composition and nutritional functions of highland barley (Qingke): A review. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.07.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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19
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Molecular Mechanism of Functional Ingredients in Barley to Combat Human Chronic Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:3836172. [PMID: 32318238 PMCID: PMC7149453 DOI: 10.1155/2020/3836172] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 03/10/2020] [Indexed: 12/18/2022]
Abstract
Barley plays an important role in health and civilization of human migration from Africa to Asia, later to Eurasia. We demonstrated the systematic mechanism of functional ingredients in barley to combat chronic diseases, based on PubMed, CNKI, and ISI Web of Science databases from 2004 to 2020. Barley and its extracts are rich in 30 ingredients to combat more than 20 chronic diseases, which include the 14 similar and 9 different chronic diseases between grains and grass, due to the major molecular mechanism of six functional ingredients of barley grass (GABA, flavonoids, SOD, K-Ca, vitamins, and tryptophan) and grains (β-glucans, polyphenols, arabinoxylan, phytosterols, tocols, and resistant starch). The antioxidant activity of barley grass and grain has the same and different functional components. These results support findings that barley grain and its grass are the best functional food, promoting ancient Babylonian and Egyptian civilizations, and further show the depending functional ingredients for diet from Pliocene hominids in Africa and Neanderthals in Europe to modern humans in the world. This review paper not only reveals the formation and action mechanism of barley diet overcoming human chronic diseases, but also provides scientific basis for the development of health products and drugs for the prevention and treatment of human chronic diseases.
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20
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Qian YL, An Y, Chen S, Qian MC. Characterization of Qingke Liquor Aroma from Tibet. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:13870-13881. [PMID: 31544459 DOI: 10.1021/acs.jafc.9b05849] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Qingke liquor is a very famous Tibetan alcoholic beverage made from "Qingke", hull-less highland barley, which is exclusively grown in Qinghai-Tibetan Plateau with an average altitude of 4000 m. Qingke liquor made in such an area whose quality or characteristics is a result of its geographic environment, including natural and human culture. In this study, the aroma compounds in two Qingke liquors made from highland barley grown at different elevations (QKH, high elevation, and QKL, low elevation) were compared by aroma extract dilution analysis (AEDA), aroma intensity (Osme), odor activity values (OAVs, ratio of concentration to odor threshold), and aroma recombination. Results revealed ethyl acetate, ethyl 2-methyl propanoate, ethyl butanoate, ethyl 3-methyl butanoate, ethyl pentanoate, ethyl hexanoate, ethyl octanoate, 3-methylbutanal, 3-methyl-1-butanol, 1-octen-3-ol, β-damascenone, 2,3-butanedione (diacetyl), acetoin, and 2-methoxyphenol (OAV ≥ 10) as important aroma active compounds to Qingke liquors. However, QKH had higher OAVs for most of the compounds than that of QKL. An aroma recombination study confirmed the analysis of aroma-active compounds in Qingke liquor, whereas the aroma emission test demonstrated 3-methylbutanal as the key aroma compound for both Qingke liquors.
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Affiliation(s)
- Yanping L Qian
- Department of Food Science and Technology , Oregon State University , Corvallis , Oregon 97331 , United States
- Department of Crop and Soil Science , Oregon State University , Corvallis , Oregon 97331 , United States
| | - Yueqi An
- Department of Food Science and Technology , Oregon State University , Corvallis , Oregon 97331 , United States
- College of Food Science and Technology , Huazhong Agricultural University , Wuhan , Hubei Province 430070 , P. R. China
| | - Shuang Chen
- College of Bioengineering , Jiangnan University , Wuxi , Jiangsu 214122 , P. R. China
| | - Michael C Qian
- Department of Food Science and Technology , Oregon State University , Corvallis , Oregon 97331 , United States
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21
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Gong L, Wang T, Sun C, Wang J, Sun B. Whole barley prevents obesity and dyslipidemia without the involvement of the gut microbiota in germ free C57BL/6J obese mice. Food Funct 2019; 10:7498-7508. [DOI: 10.1039/c9fo01268k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Whole barley (WB) consumption is the subject of renewed interest because of its health benefits.
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Affiliation(s)
- Lingxiao Gong
- China-Canada Joint Lab of Food Nutrition and Health (Beijing)
- 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 100048
| | - Tianxi Wang
- China-Canada Joint Lab of Food Nutrition and Health (Beijing)
- 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 100048
| | - Cong Sun
- China-Canada Joint Lab of Food Nutrition and Health (Beijing)
- 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 100048
| | - Jing Wang
- China-Canada Joint Lab of Food Nutrition and Health (Beijing)
- 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 100048
| | - Baoguo Sun
- China-Canada Joint Lab of Food Nutrition and Health (Beijing)
- 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 100048
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22
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Palabiyik O, Karaca A, Taştekin E, Yamasan BE, Tokuç B, Sipahi T, Vardar SA. The Effect of a High-Protein Diet and Exercise on Cardiac AQP7 and GLUT4 Gene Expression. Biochem Genet 2016; 54:731-45. [PMID: 27294385 DOI: 10.1007/s10528-016-9753-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 06/08/2016] [Indexed: 12/18/2022]
Abstract
High-protein (HP) diets are commonly consumed by athletes despite their potential health hazard, which is postulated to enforce a negative effect on bone and renal health. However, its effects on heart have not been known yet. Aquaporin-7 (AQP7) is an aquaglyceroporin that facilitates glycerol and water transport. Glycerol is an important cardiac energy production substrate, especially during exercise, in conjunction with fatty acids and glucose. Glucose transporter 4 (GLUT4) is an insulin-sensitive glucose transporter in heart. We aimed to investigate the effect of HPD on AQP7 and GLUT4 levels in the rat heart subjected to exercise. Male Sprague-Dawley rats were divided into control (n = 12), exercise (E) training (n = 10), HPD (n = 12), and HPD-E training (n = 9) groups. The HPD groups were fed a 45 % protein-containing diet 5 weeks. The HPD-E and E groups were performed the treadmill exercise during the 5-week study period. Real-time polymerase chain reaction and immunohistochemistry techniques were used to determine the gene expression and localization of AQP7 and GLUT4 in heart tissue. Results of relative gene expression were calculated by the 'Pfaffl' mathematical method using the REST program. Differences in AQP7 and GLUT4 gene expression were expressed as fold change compared to the control group. Heart weight/tibia ratio and ventricular wall thickness were evaluated as markers of cardiac hypertrophy. Further, serum glucose, glycerol, and insulin levels were also measured. AQP7 gene expression was found to be increased in the E (3.47-fold, p < 0.001), HPD (5.59-fold, p < 0.001), and HPD-E (3.87-fold, p < 0.001) groups compared to the control group. AQP7 protein expression was also increased in the HPD and HPD-E groups (p < 0.001). Additionally, cardiac mRNA expression levels of GLUT4 showed a significant increase in the E (2.16-fold, p < 0.003), HPD (7.14-fold, p < 0.001), and HPD-E (3.43-fold, p < 0.001) groups compared to the control group. GLUT4 protein expression was significantly increased in the E, HPD, and HPD-E groups compared to the control group (p = 0.024, p < 0.001, and p < 0.001, respectively). Furthermore, Serum glucose levels were significantly different between groups (p < 0.005). This difference was observed between the HPD groups and normal-protein diet groups (C and E). Serum insulin levels were higher for HPD groups compared with the normal-protein diet groups (p < 0.001), whereas no differences were observed between the exercise and sedentary groups (p = 0.111). Serum glycerol levels were significantly increased in the HPD groups compared with control and E groups (p < 0.05 and p < 0.05, respectively). Consumption of HPD supplementation caused the increased effects on AQP7 and GLUT4 expression in rat heart.
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Affiliation(s)
- Orkide Palabiyik
- Department of Biophysics, Faculty of Medicine, Trakya University, Edirne, Turkey.
| | - Aziz Karaca
- Department of Physiology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Ebru Taştekin
- Department of Pathology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Bilge Eren Yamasan
- Department of Biophysics, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Burcu Tokuç
- Department of Public Health, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Tammam Sipahi
- Department of Biophysics, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Selma Arzu Vardar
- Department of Physiology, Faculty of Medicine, Trakya University, Edirne, Turkey
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23
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Coevolution between Cancer Activities and Food Structure of Human Being from Southwest China. BIOMED RESEARCH INTERNATIONAL 2015; 2015:497934. [PMID: 26609527 PMCID: PMC4644535 DOI: 10.1155/2015/497934] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 07/26/2015] [Indexed: 02/05/2023]
Abstract
Yunnan and Tibet are the lowest cancer mortality and the largest producer for anticancer crops (brown rice, barley, buckwheat, tea, walnut, mushrooms, and so forth). Shanghai and Jiangsu province in China have the highest mortality of cancers, which are associated with the sharp decline of barley.
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Huang K, Liang XC, Zhong YL, He WY, Wang Z. 5-Caffeoylquinic acid decreases diet-induced obesity in rats by modulating PPARα and LXRα transcription. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2015; 95:1903-1910. [PMID: 25186103 DOI: 10.1002/jsfa.6896] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 08/28/2014] [Accepted: 08/29/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND Chlorogenic acids (CGAs) are widely distributed in plant material, including foods and beverages. 5-Caffeoylquinic acid (5-CQA) is the most studied CGA, but the mechanism of its hypolipidaemic effect remains unclear. This study aimed to determine the effect of 5-CQA on lipid metabolism in the liver of Sprague-Dawley rats fed a high-fat diet (HFD). RESULTS 5-CQA suppressed HFD-induced increases in body weight and visceral fat-pad weight, serum lipid levels, and serum and hepatic free fatty acids in a dose-dependent manner. Real-time polymerase chain reaction revealed that 5-CQA altered the mRNA expression of the transcription factors peroxisome proliferator-activated receptor α (PPARα) and liver X receptor α (LXRα) and target genes involved in hepatic fatty acid uptake, β-oxidation, fatty acid synthesis, and cholesterol synthesis. Moreover, hepatic tissue sections from HFD-fed rats showed many empty vacuoles, suggesting that liver cells were filled with more fat droplets. However, 5-CQA significantly ameliorated this effect. CONCLUSION 5-CQA may improve lipid metabolism disorders by altering the expression of PPARα and LXRα, which are involved in multiple intracellular signalling pathways.
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Affiliation(s)
- Kang Huang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan, 410128, China
| | - Xiu-ci Liang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan, 410128, China
| | - Ying-li Zhong
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan, 410128, China
| | - Wan-yan He
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan, 410128, China
| | - Zheng Wang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan, 410128, China
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