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Nath LR, B Gowda SG, Gowda D, Hou F, Chiba H, Hui SP. Dissecting new lipids and their composition in herbal tea using untargeted LC/MS. Food Chem 2024; 447:138941. [PMID: 38461726 DOI: 10.1016/j.foodchem.2024.138941] [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: 08/11/2023] [Revised: 02/24/2024] [Accepted: 03/02/2024] [Indexed: 03/12/2024]
Abstract
Herbal teas and beverages have gained global attention because they are rich in natural bioactive compounds, which are known to have diverse biological effects, including antioxidant and anticarcinogenic properties. However, the lipidomic profiles of herbal teas remain unclear. In this study, we applied an untargeted lipidomics approach using high-performance liquid chromatography coupled with linear ion trap-Orbitrap mass spectrometry to comprehensively profile, compare, and identify unknown lipids in four herbal teas: dokudami, kumazasa, sugina, and yomogi. A total of 341 molecular species from five major classes of lipids were identified. Multivariate principal component analysis revealed distinct lipid compositions for each of the herbs. The fatty acid α-linolenic acid (FA 18:3) was found to be abundant in kumazasa, whereas arachidonic acid (FA 20:4) was the most abundant in sugina. Interestingly, novel lipids were discovered for the first time in plants; specifically, short-chain fatty acid esters of hydroxy fatty acids (SFAHFAs) with 4-hydroxy phenyl nonanoic acid as the structural core. This study provides insight into the lipidomic diversity and potential bioactive lipid components of herbal teas, offering a foundation for further research into their health-promoting properties and biological significance.
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Affiliation(s)
- Lipsa Rani Nath
- Graduate School of Global Food Resources, Hokkaido University, Kita-9, Nishi-9, Kita-Ku, Sapporo 060-0809, Japan
| | - Siddabasave Gowda B Gowda
- Faculty of Health Sciences, Hokkaido University, Kita-12, Nishi-5, Kita-ku, Sapporo 060-0812, Japan; Graduate School of Global Food Resources, Hokkaido University, Kita-9, Nishi-9, Kita-Ku, Sapporo 060-0809, Japan.
| | - Divyavani Gowda
- Faculty of Health Sciences, Hokkaido University, Kita-12, Nishi-5, Kita-ku, Sapporo 060-0812, Japan
| | - Fengjue Hou
- Graduate School of Health Sciences, Hokkaido University, Kita-12, Nishi-5, Kita-ku, Sapporo 060-0812, Japan
| | - Hitoshi Chiba
- Department of Nutrition, Sapporo University of Health Sciences, Nakanuma, Nishi-4-3-1-15, Higashi-ku, Sapporo 007-0894, Japan
| | - Shu Ping Hui
- Faculty of Health Sciences, Hokkaido University, Kita-12, Nishi-5, Kita-ku, Sapporo 060-0812, Japan.
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2
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Dotimas LG, Ojo B, Kaur A, Alake S, Dixon M, Rassi GDE, Ice JA, Zhao J, Emerson SR, Smith BJ, Lucas EA. Wheat germ supplementation has modest effects on gut health markers but improves glucose homeostasis markers in adults classified as overweight: A randomized controlled pilot study. Nutr Res 2024; 127:13-26. [PMID: 38820937 DOI: 10.1016/j.nutres.2024.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 05/01/2024] [Accepted: 05/01/2024] [Indexed: 06/02/2024]
Abstract
Wheat germ (WG), a by-product of flour milling, is rich in bioactive substances that may help improve health complications associated with increased adiposity. This study investigated the effects of WG on gut health, metabolic, and inflammatory markers in adults classified as overweight. We hypothesized that WG, because of its many bioactive components, would improve gut health and metabolic, and inflammatory markers in overweight adults. Forty adults (18-45 years old) and with a body mass index between 25 and 30 kg/m2 participated in this single-blinded randomized controlled pilot study. Participants consumed the study supplements containing 30 g of either cornmeal (control, CL) or WG daily for 4 weeks. Primary outcome variables were gut health markers including gut microbiota, gut integrity markers, and fecal short-chain fatty acids, whereas secondary outcome variables included metabolic and inflammatory parameters assessed at baseline and at the end of supplementation. Thirty-nine participants (n = 19 and 20 for CL and WG group, respectively) completed the study. The genus Faecalibacterium was significantly higher in the WG group compared to CL post-supplementation but no significant changes in other gut health markers, short-chain fatty acids, inflammatory markers, and lipid profiles were observed. Compared with baseline, WG improved markers of glucose homeostasis including insulin (P = .02), homeostatic model assessment of insulin resistance (P = .03), glycated hemoglobin (P = .07), and the pro-inflammatory adipokine, resistin (P = .04). However, these parameters after intervention were not different with control. Our findings suggest that WG supplementation have modest effects on gut health but may provide an economical option for individuals to improve glycemic control.
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Affiliation(s)
- Levin G Dotimas
- Department of Nutritional Sciences, Oklahoma State University (OSU), Stillwater, OK, USA
| | - Babajide Ojo
- Department of Nutritional Sciences, Oklahoma State University (OSU), Stillwater, OK, USA; Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Amritpal Kaur
- Department of Nutritional Sciences, Oklahoma State University (OSU), Stillwater, OK, USA
| | - Sanmi Alake
- Department of Nutritional Sciences, Oklahoma State University (OSU), Stillwater, OK, USA; Department of Comparative Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Madison Dixon
- Department of Nutritional Sciences, Oklahoma State University (OSU), Stillwater, OK, USA
| | | | - John A Ice
- Department of Nutritional Sciences, Oklahoma State University (OSU), Stillwater, OK, USA; US Department of Veterans Affairs, Oklahoma City, OK, USA
| | - Jiangchao Zhao
- Animal Science Department, University of Arkansas, Fayetteville, AR, USA
| | - Sam R Emerson
- Department of Nutritional Sciences, Oklahoma State University (OSU), Stillwater, OK, USA
| | - Brenda J Smith
- Department of Nutritional Sciences, Oklahoma State University (OSU), Stillwater, OK, USA; Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Edralin A Lucas
- Department of Nutritional Sciences, Oklahoma State University (OSU), Stillwater, OK, USA.
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Hassan OGA, El-Garhy GM, Kholif AE, Mousa GA. Wheat germ meal replaces cottonseed meal at different levels in diets of Ossimi lambs: Impact on growth performance, feed utilization and economic efficiency. J Anim Physiol Anim Nutr (Berl) 2024; 108:806-815. [PMID: 38311826 DOI: 10.1111/jpn.13935] [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: 06/17/2023] [Revised: 01/20/2024] [Accepted: 01/22/2024] [Indexed: 02/06/2024]
Abstract
This experiment aimed to evaluate the replacement of cottonseed meal (CSM) with wheat germ meal (WGM) in diets of growing lambs on feed utilization and growth performance. Twenty-eight Ossimi male lambs (38 ± 0.8 kg weight), and 180 ± 5 days were divided randomly into four experimental groups in a complete randomized design for 105 days. Cottonseed meal was replaced with WGM at 0 (WGM0 treatment), 50 (WGM50 treatment), 75 (WGM75 treatment) and 100% (WGM100 treatment). The chemical analysis of the total essential and non-essential amino acids showed an increase at the WGM diet compared to CSM. The replacement of CSM with WGM linearly and quadratically improved (p ˂ 0.05) lambs' growth performance and feed conversion. The WGM50 and WGM100 treatments lowered (p ˂ 0.05) feed intake, without affecting nutrient digestibility or diets' nutritive. Feeding WGM increased (p ˂ 0.05) total protein, albumin, and urea-N concentrations in blood of lambs. The WGM100 treatment showed the highest relative percentage of net revenue compared to the other treatments. It is concluded that the complete replacement of CSM with WGM showed positive effects on lambs' performance and economic efficiency.
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Affiliation(s)
- Ola G A Hassan
- Animal Production Department, Faculty of Agriculture, Fayoum University, Fayoum, Egypt
| | - Gamal M El-Garhy
- Animal Production Department, Faculty of Agriculture, Fayoum University, Fayoum, Egypt
| | - Ahmed E Kholif
- Dairy Science Department, National Research Centre, Giza, Egypt
| | - Gamal A Mousa
- Animal Production Department, Faculty of Agriculture, Fayoum University, Fayoum, Egypt
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4
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Aizawa H. Impact of micelle characteristics on cholesterol absorption and ezetimibe inhibition: Insights from Niemann-Pick C1-like 1 binding and molecular structure. J Liposome Res 2023:1-13. [PMID: 37905576 DOI: 10.1080/08982104.2023.2274424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 10/18/2023] [Indexed: 11/02/2023]
Abstract
Yamanashi et al., conducted a study on the absorption of cholesterol and β-sitosterol, as well as the inhibitory effect of ezetimibe (EZE). They used CaCo-2 cells to simulate the intestines and investigated how different mixed micelles, acting as carriers, were absorbed into these cells through the Niemann-Pick C1-like 1 (NPC1L1) protein. The study focused on the impact of micelle shape, size, and zeta potential on absorption and the inhibitory effect of EZE. I utilized small-angle X-ray scattering and a zeta potential measuring device to measure these characteristics. The findings revealed a two-step mechanism: NPC1L1 selectively bound micelles based on their shape and size, and once bound, the absorption was regulated by the molecular structure of the micelle components. EZE's inhibitory effect changed with micelle composition, influencing micelle size and shape. EZE initially acted on the micelle's shape and size, and then NPC1L1 selectively bound micelles based on their shape and size, allowing EZE to directly inhibit absorption by interacting with NPC1L1. This groundbreaking discovery challenges existing concepts and holds significant implications for researchers in drug development, as well as physicians and pharmacists.
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Affiliation(s)
- Hideki Aizawa
- Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Japan
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Shakhbanov KS, Abdulagatov IM, Aliev AM. Supercritical Carbon Dioxide Extraction of Parthenocissus Wild Grape Seed Fatty Oil. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2022. [DOI: 10.1134/s1990793122070144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Salehi‐Sahlabadi A, Kord‐Varkaneh H, Kocaadam‐Bozkurt B, Seraj SS, Alavian SM, Hekmatdoost A. Wheat germ improves hepatic steatosis, hepatic enzymes, and metabolic and inflammatory parameters in patients with nonalcoholic fatty liver disease: A randomized, placebo‐controlled, double‐blind clinical trial. Phytother Res 2022; 36:4201-4209. [DOI: 10.1002/ptr.7553] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 06/13/2022] [Accepted: 06/17/2022] [Indexed: 01/19/2023]
Affiliation(s)
- Ammar Salehi‐Sahlabadi
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology, Research Institute Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Hamed Kord‐Varkaneh
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology, Research Institute Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Betul Kocaadam‐Bozkurt
- Faculty of Health Sciences, Department of Nutrition and Dietetics Erzurum Technical University Erzurum Turkey
| | | | - Seyed Moayed Alavian
- Baqiyatallah Research Center for Gastroenterology and Liver Diseases Baqiyatallh University of Medical Sciences Tehran Iran
| | - Azita Hekmatdoost
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology, Research Institute Shahid Beheshti University of Medical Sciences Tehran Iran
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Krohn I, Menanteau‐Ledouble S, Hageskal G, Astafyeva Y, Jouannais P, Nielsen JL, Pizzol M, Wentzel A, Streit WR. Health benefits of microalgae and their microbiomes. Microb Biotechnol 2022; 15:1966-1983. [PMID: 35644921 PMCID: PMC9249335 DOI: 10.1111/1751-7915.14082] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 05/10/2022] [Accepted: 05/11/2022] [Indexed: 12/16/2022] Open
Abstract
Microalgae comprise a phylogenetically very diverse group of photosynthetic unicellular pro‐ and eukaryotic organisms growing in marine and other aquatic environments. While they are well explored for the generation of biofuels, their potential as a source of antimicrobial and prebiotic substances have recently received increasing interest. Within this framework, microalgae may offer solutions to the societal challenge we face, concerning the lack of antibiotics treating the growing level of antimicrobial resistant bacteria and fungi in clinical settings. While the vast majority of microalgae and their associated microbiota remain unstudied, they may be a fascinating and rewarding source for novel and more sustainable antimicrobials and alternative molecules and compounds. In this review, we present an overview of the current knowledge on health benefits of microalgae and their associated microbiota. Finally, we describe remaining issues and limitation, and suggest several promising research potentials that should be given attention.
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Affiliation(s)
- Ines Krohn
- Department of Microbiology and Biotechnology University of Hamburg Hamburg Germany
| | | | - Gunhild Hageskal
- Department of Biotechnology and Nanomedicine SINTEF Industry Trondheim Norway
| | - Yekaterina Astafyeva
- Department of Microbiology and Biotechnology University of Hamburg Hamburg Germany
| | | | - Jeppe Lund Nielsen
- Department for Chemistry and Bioscience Aalborg University Aalborg Denmark
| | - Massimo Pizzol
- Department of Planning Aalborg University Aalborg Denmark
| | - Alexander Wentzel
- Department of Biotechnology and Nanomedicine SINTEF Industry Trondheim Norway
| | - Wolfgang R. Streit
- Department of Microbiology and Biotechnology University of Hamburg Hamburg Germany
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Tian W, Zheng Y, Wang W, Wang D, Tilley M, Zhang G, He Z, Li Y. A comprehensive review of wheat phytochemicals: From farm to fork and beyond. Compr Rev Food Sci Food Saf 2022; 21:2274-2308. [PMID: 35438252 DOI: 10.1111/1541-4337.12960] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 02/08/2022] [Accepted: 03/16/2022] [Indexed: 11/28/2022]
Abstract
The health benefits of whole wheat consumption can be partially attributed to wheat's phytochemicals, including phenolic acids, flavonoids, alkylresorcinols, carotenoids, phytosterols, tocopherols, and tocotrienols. It is of increasing interest to produce whole wheat products that are rich in bioactive phytochemicals. This review provides the fundamentals of the chemistry, extraction, and occurrence of wheat phytochemicals and includes critical discussion of several long-lasting issues: (1) the commonly used nomenclature on distribution of wheat phenolic acids, namely, soluble-free, soluble-conjugated, and insoluble-bound phenolic acids; (2) different extraction protocols for wheat phytochemicals; and (3) the chemistry and application of in vitro antioxidant assays. This review further discusses recent advances on the effects of genotypes, environments, field management, and processing techniques including ultrafine grinding, germination, fermentation, enzymatic treatments, thermal treatments, and food processing. These results need to be interpreted with care due to varied sample preparation protocols and limitations of in vitro assays. The bioaccessibility, bioavailability, metabolism, and potential health benefits of wheat phytochemicals are also reviewed. This comprehensive and critical review will benefit scientific researchers in the field of bioactive compounds of cereal grains and also those in the cereal food industry to produce high-quality functional foods.
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Affiliation(s)
- Wenfei Tian
- National Wheat Improvement Centre, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China.,Department of Grain Science and Industry, Kansas State University, Manhattan, Kansas, USA.,International Maize and Wheat Improvement Centre (CIMMYT) China Office, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yi Zheng
- Department of Grain Science and Industry, Kansas State University, Manhattan, Kansas, USA
| | - Weiqun Wang
- Department of Food, Nutrition, Dietetics and Health, Kansas State University, Manhattan, Kansas, USA
| | - Donghai Wang
- Department of Biological and Agricultural Engineering, Kansas State University, Manhattan, Kansas, USA
| | - Michael Tilley
- USDA, Agricultural Research Service, Center for Grain and Animal Health Research, Manhattan, Kansas, USA
| | - Guorong Zhang
- Agricultural Research Center-Hays, Kansas State University, Hays, Kansas, USA
| | - Zhonghu He
- National Wheat Improvement Centre, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China.,International Maize and Wheat Improvement Centre (CIMMYT) China Office, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yonghui Li
- Department of Grain Science and Industry, Kansas State University, Manhattan, Kansas, USA
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9
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Linh NTT, Son NT, Ha NTT, Tra NT, Tu Anh LT, Chen S, Van Tuyen N. Biologically Active Constituents from Plants of the Genus Xanthium. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2021; 116:135-209. [PMID: 34698947 DOI: 10.1007/978-3-030-80560-9_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Herbaceous annual plants of the genus Xanthium are widely distributed throughout the world and have been employed medicinally for millennia. This contribution aims to provide a systematic overview of the diverse structural classes of Xanthium secondary metabolites, as well as their pharmacological potential. On searching in various reference databases with a combination of three keywords "Xanthium", "Phytochemistry", and "Pharmacology", relevant publications have been obtained subsequently. From the 1950s to the present, phytochemical investigations have focused mainly on 15 Xanthium species, from which 300 compounds have been isolated and structurally resolved, primarily using NMR spectroscopic methodology. Xanthium constituents represent several secondary metabolite types, including simple phenols, sulfur and nitrogen-containing compounds, lignans, sterols, flavonoids, quinones, coumarins, and fatty acids, with terpenoids being the most common of these. Among the 174 terpenoids characterized, xanthanolide sesquiterpenoids are abundant, and most of the compounds isolated containing sulfur were found to be new in Nature. The ethnomedical uses of Xanthium crude extracts are supported by the in vitro and in vivo effects of their constituents, such as cytotoxicity, antioxidant, antibacterial, antifungal, antidiabetes, and hepatoprotective activities. Toxicological results suggest that Xanthium plant extracts are generally safe for use. In the future, additional phytochemical investigations, along with further assessments of the biological profiles and mechanism of action studies of the components of Xanthium species, are to be expected.
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Affiliation(s)
- Nguyen Thi Thuy Linh
- Department of Applied Biochemistry, Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Ninh The Son
- Department of Applied Biochemistry, Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam.
| | - Nguyen Thi Thu Ha
- Department of Applied Biochemistry, Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Nguyen Thanh Tra
- Department of Applied Biochemistry, Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Le Thi Tu Anh
- Department of Applied Biochemistry, Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Sibao Chen
- Department of Applied Biochemistry and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
| | - Nguyen Van Tuyen
- Department of Medicinal Chemistry, Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
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Ali MY, Sina AAI, Khandker SS, Neesa L, Tanvir EM, Kabir A, Khalil MI, Gan SH. Nutritional Composition and Bioactive Compounds in Tomatoes and Their Impact on Human Health and Disease: A Review. Foods 2020; 10:E45. [PMID: 33375293 PMCID: PMC7823427 DOI: 10.3390/foods10010045] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/20/2020] [Accepted: 12/23/2020] [Indexed: 12/13/2022] Open
Abstract
Tomatoes are consumed worldwide as fresh vegetables because of their high contents of essential nutrients and antioxidant-rich phytochemicals. Tomatoes contain minerals, vitamins, proteins, essential amino acids (leucine, threonine, valine, histidine, lysine, arginine), monounsaturated fatty acids (linoleic and linolenic acids), carotenoids (lycopene and β-carotenoids) and phytosterols (β-sitosterol, campesterol and stigmasterol). Lycopene is the main dietary carotenoid in tomato and tomato-based food products and lycopene consumption by humans has been reported to protect against cancer, cardiovascular diseases, cognitive function and osteoporosis. Among the phenolic compounds present in tomato, quercetin, kaempferol, naringenin, caffeic acid and lutein are the most common. Many of these compounds have antioxidant activities and are effective in protecting the human body against various oxidative stress-related diseases. Dietary tomatoes increase the body's level of antioxidants, trapping reactive oxygen species and reducing oxidative damage to important biomolecules such as membrane lipids, enzymatic proteins and DNA, thereby ameliorating oxidative stress. We reviewed the nutritional and phytochemical compositions of tomatoes. In addition, the impacts of the constituents on human health, particularly in ameliorating some degenerative diseases, are also discussed.
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Affiliation(s)
- Md Yousuf Ali
- Laboratory of Preventive and Integrative Biomedicine, Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh; (M.Y.A.); (S.S.K.); (A.K.)
- Department of Biochemistry and Molecular Biology, Gono Bishwabidyalay, Savar, Dhaka 1344, Bangladesh
| | - Abu Ali Ibn Sina
- Center for Personalized Nanomedicine, Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia;
| | - Shahad Saif Khandker
- Laboratory of Preventive and Integrative Biomedicine, Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh; (M.Y.A.); (S.S.K.); (A.K.)
| | - Lutfun Neesa
- Department of Biotechnology and Genetic Engineering, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, Dhaka 8100, Bangladesh;
| | - E. M. Tanvir
- Veterinary Drug Residue Analysis Division, Institute of Food and Radiation Biology, Atomic Energy Research Establishment, Savar, Dhaka 1349, Bangladesh;
- School of Pharmacy, Pharmacy Australia Centre of Excellence, The University of Queensland, Woolloongabba, QLD 4102, Australia
| | - Alamgir Kabir
- Laboratory of Preventive and Integrative Biomedicine, Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh; (M.Y.A.); (S.S.K.); (A.K.)
| | - Md Ibrahim Khalil
- Laboratory of Preventive and Integrative Biomedicine, Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh; (M.Y.A.); (S.S.K.); (A.K.)
- Department of Biochemistry and Molecular Biology, Gono Bishwabidyalay, Savar, Dhaka 1344, Bangladesh
| | - Siew Hua Gan
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor 47500, Malaysia
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Didaras NA, Karatasou K, Dimitriou TG, Amoutzias GD, Mossialos D. Antimicrobial Activity of Bee-Collected Pollen and Beebread: State of the Art and Future Perspectives. Antibiotics (Basel) 2020; 9:antibiotics9110811. [PMID: 33202560 PMCID: PMC7697837 DOI: 10.3390/antibiotics9110811] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/06/2020] [Accepted: 11/12/2020] [Indexed: 01/06/2023] Open
Abstract
Bee-collected pollen (BCP) is a well-known functional food. Honey bees process the collected pollen and store it in the hive, inside the comb cells. The processed pollen is called bee- bread or ambrosia and it is the main source of proteins, lipids, vitamins, macro-and micro-elements in honey bee nutrition. During storage, beebread undergoes solid state fermentation which preserves it and increases the bioavailability of nutrients. Research on beebread has been rather limited until now. In recent years, there is an increasing interest regarding the antimicrobial properties of BCP and beebread, due to emerging antimicrobial resistance by pathogens. Both BCP and beebread exhibit antimicrobial properties against diverse pathogens, like bacteria and fungi. As is the case with other bee products, lack of antimicrobial resistance might be attributed to the synergy of more than one antimicrobial compounds within BCP and beebread. Furthermore, BCP and bee bread exert targeted activity against pathogens and affect the host microbiome in a prebiotic manner. This review aims to present up to date research findings regarding these aspects as well as to discuss current challenges and future perspectives in the field.
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Affiliation(s)
- Nikos Asoutis Didaras
- Microbial Biotechnology-Molecular Bacteriology-Virology Laboratory, Department of Biochemistry & Biotechnology, University of Thessaly, 41500 Volos, Greece; (N.A.D.); (T.G.D.)
| | - Katerina Karatasou
- Apicultural Centre of Larissa, Federation of Greek Beekeepers Associations, 41500 Larissa, Greece;
| | - Tilemachos G Dimitriou
- Microbial Biotechnology-Molecular Bacteriology-Virology Laboratory, Department of Biochemistry & Biotechnology, University of Thessaly, 41500 Volos, Greece; (N.A.D.); (T.G.D.)
| | - Grigoris D. Amoutzias
- Bioinformatics Laboratory, Department of Biochemistry & Biotechnology, University of Thessaly, 41500 Volos, Greece;
| | - Dimitris Mossialos
- Microbial Biotechnology-Molecular Bacteriology-Virology Laboratory, Department of Biochemistry & Biotechnology, University of Thessaly, 41500 Volos, Greece; (N.A.D.); (T.G.D.)
- Correspondence: ; Tel.: +30-241-056-5270
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Desmarchelier C, Wolff E, Defoort C, Nowicki M, Morange P, Alessi M, Valéro R, Nicolay A, Lairon D, Borel P. A Combination of Single Nucleotide Polymorphisms is Associated with the Interindividual Variability of Cholesterol Bioavailability in Healthy Adult Males. Mol Nutr Food Res 2020; 64:e2000480. [DOI: 10.1002/mnfr.202000480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 09/04/2020] [Indexed: 01/05/2023]
Affiliation(s)
| | - Estelle Wolff
- Aix‐Marseille University, INRAE, INSERM, C2VN 13005 Marseille France
| | - Catherine Defoort
- Aix‐Marseille University, INRAE, INSERM, C2VN 13005 Marseille France
| | - Marion Nowicki
- Aix‐Marseille University, INRAE, INSERM, C2VN 13005 Marseille France
| | | | | | - René Valéro
- Aix‐Marseille University, INRAE, INSERM, C2VN 13005 Marseille France
- APHM, CHU Conception Department of Nutrition Metabolic Diseases and Endocrinology 13005 Marseille France
| | - Alain Nicolay
- Aix‐Marseille University, INRAE, INSERM, C2VN 13005 Marseille France
| | - Denis Lairon
- Aix‐Marseille University, INRAE, INSERM, C2VN 13005 Marseille France
| | - Patrick Borel
- Aix‐Marseille University, INRAE, INSERM, C2VN 13005 Marseille France
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13
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Kaur R, Myrie SB. Association of Dietary Phytosterols with Cardiovascular Disease Biomarkers in Humans. Lipids 2020; 55:569-584. [PMID: 32557606 DOI: 10.1002/lipd.12262] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 05/16/2020] [Accepted: 05/19/2020] [Indexed: 12/27/2022]
Abstract
Cardiovascular disease (CVD) is a leading cause of death worldwide. Elevated concentrations of serum total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) are major lipid biomarkers that contribute to the risk of CVD. Phytosterols well known for their cholesterol-lowering ability, are non-nutritive compounds that are naturally found in plant-based foods and can be classified into plant sterols and plant stanols. Numerous clinical trials demonstrated that 2 g phytosterols per day have LDL-C lowering efficacy ranges of 8-10%. Some observational studies also showed an inverse association between phytosterols and LDL-C reduction. Beyond the cholesterol-lowering beneficial effects of phytosterols, the association of phytosterols with CVD risk events such as coronary artery disease and premature atherosclerosis in sitosterolemia patients have also been reported. Furthermore, there is an increasing demand to determine the association of circulating phytosterols with vascular health biomarkers such as arterial stiffness biomarkers. Therefore, this review aims to examine the ability of phytosterols for CVD risk prevention by reviewing the current data that looks at the association between dietary phytosterols intake and serum lipid biomarkers, and the impact of circulating phytosterols level on vascular health biomarkers. The clinical studies in which the impact of phytosterols on vascular function is investigated show minor but beneficial phytosterols effects over vascular health. The aforementioned vascular health biomarkers are pulse wave velocity, augmentation index, and arterial blood pressure. The current review will serve to begin to address the research gap that exists between the association of dietary phytosterols with CVD risk biomarkers.
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Affiliation(s)
- Ramandeep Kaur
- Department of Food and Human Nutritional Sciences, Richardson Centre for Functional Food and Nutraceuticals, University of Manitoba, R3T 2N2, 196 Innovation Drive, Winnipeg, MB, Canada
| | - Semone B Myrie
- Department of Food and Human Nutritional Sciences, Richardson Centre for Functional Food and Nutraceuticals, University of Manitoba, R3T 2N2, 196 Innovation Drive, Winnipeg, MB, Canada
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14
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Liaqat H, Jeong E, Kim KJ, Kim JY. Effect of wheat germ on metabolic markers: a systematic review and meta-analysis of randomized controlled trials. Food Sci Biotechnol 2020; 29:739-749. [PMID: 32523783 PMCID: PMC7256174 DOI: 10.1007/s10068-020-00769-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 04/09/2020] [Accepted: 04/27/2020] [Indexed: 12/24/2022] Open
Abstract
This systematic review and meta-analysis aim to evaluate the association of wheat germ interventions and metabolic markers. An electronic search was performed by mid-May 2019 in the PubMed, Google Scholar, and Web of Science databases. Quality was evaluated using the risk of bias assessment tools. Thirty-three randomized controlled trials (RCTs) were identified, among which ten were suitable and systematically reviewed based on biomarkers (cholesterol, triglycerides, glucose, and oxidative stress). Three biomarkers in five eligible studies were investigated by meta-analysis. Total cholesterol showed non-significant results (p = 0.98), with standard mean difference (SMD) of − 0.01 (95% confidence interval; − 0.17, 0.16). The SMD was − 0.06 (95% CI − 0.41, 0.29, n = 4) for triglycerides and − 0.09 (95% CI − 0.62, 0.45, n = 2) for glucose. No biomarkers showed heterogeneity (0%). This review revealed non-significant association between wheat germ interventions and metabolic markers. Sensitive analysis with high-quality RCTs may be worth trying.
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Affiliation(s)
- Humna Liaqat
- Department of Food Science and Technology, Seoul National University of Science and Technology, 232, Gongneung-ro, Nowon-gu, Seoul, 01811 Korea
| | - Eunseon Jeong
- Department of Food Science and Technology, Seoul National University of Science and Technology, 232, Gongneung-ro, Nowon-gu, Seoul, 01811 Korea
| | - Kyeong Jin Kim
- Department of Nano Bio Engineering, Seoul National University of Science and Technology, 232, Gongneung-ro, Nowon-gu, Seoul, 01811 Korea
| | - Ji Yeon Kim
- Department of Food Science and Technology, Seoul National University of Science and Technology, 232, Gongneung-ro, Nowon-gu, Seoul, 01811 Korea.,Department of Nano Bio Engineering, Seoul National University of Science and Technology, 232, Gongneung-ro, Nowon-gu, Seoul, 01811 Korea
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15
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Ghaedi E, Foshati S, Ziaei R, Beigrezaei S, Kord-Varkaneh H, Ghavami A, Miraghajani M. Effects of phytosterols supplementation on blood pressure: A systematic review and meta-analysis. Clin Nutr 2019; 39:2702-2710. [PMID: 31902603 DOI: 10.1016/j.clnu.2019.12.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 12/04/2019] [Accepted: 12/11/2019] [Indexed: 02/01/2023]
Abstract
Several reports have indicated a positive effect of phytosterols on blood pressure (BP), nevertheless these findings have been controversial. Therefore, a systematic review and meta-analysis of randomized controlled trials (RCTs) was aimed to investigate the effects of phytosterol supplementation on BP. An online search was carried out in PubMed, Scopus, ISI Web of Science, Cochrane library and Google Scholar up to May 2019. Weighted Mean difference (WMD) with 95% confidence intervals (CIs) were calculated using a fixed-effects model. The present meta-analysis of 19 RCTs showed that supplementation with phytosterols can decrease both systolic BP (WMD: -1.55 mmHg, 95% CI: -2.67 to -0.42, p = 0.007) and diastolic BP (WMD: -0.84 mmHg, 95% CI: -1.60 to -0.08, p = 0.03). Dose-response analysis revealed that phytosterol intake change SBP significantly based on treatment dose in nonlinear fashion. Subgroup analysis based on duration showed a significant effect of phytosterol on SBP and DBP in subsets of <12 weeks. In addition, a significant effect of phytosterol was observed in dosage of ≥2000 mg for SBP and <2000 mg for DBP. Based on current findings supplementation with phytosterol may be a beneficial adjuvant therapy in hypertensive patients as well as a complementary preventive option in prehypertensive and normotensive individuals. However, this issue is still open and requires further investigation in future studies.
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Affiliation(s)
- Ehsan Ghaedi
- Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences (TUMS), Tehran, Iran; Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Sahar Foshati
- Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Rahele Ziaei
- Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sara Beigrezaei
- Nutrition and Food Security Research Center, Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hamed Kord-Varkaneh
- Student Research Committee, Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abed Ghavami
- Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Maryam Miraghajani
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; The Early Life Research Unit, Division of Child Health, Obstetrics and Gynaecology, University of Nottingham, Nottingham, UK.
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16
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Mohammadi H, Karimifar M, Heidari Z, Zare M, Amani R. The effects of wheat germ supplementation on metabolic profile in patients with type 2 diabetes mellitus: A randomized, double-blind, placebo-controlled trial. Phytother Res 2019; 34:879-885. [PMID: 31828863 DOI: 10.1002/ptr.6570] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 10/20/2019] [Accepted: 11/12/2019] [Indexed: 01/14/2023]
Abstract
The aim of the present trial was to examine the effects of wheat germ (WG) consumption on metabolic control and oxidative stress status of type 2 diabetes mellitus (T2DM) patients. Eighty participants with T2DM were randomly allocated to receive 20-g WG (n = 40) or placebo (n = 40) in a randomized double-blind clinical trial for 12 weeks. Serum lipid profiles, glycaemic indices, total antioxidant capacity, and malondialdhyde (MDA) were assessed. A total of 75 subjects completed the trial. Compared with the placebo, WG consumption led to significant reduction in total cholesterol (TC) concentrations (p = .04). There was a trend regarding TC to high density lipoprotein ratio (p = .08) following 12 weeks WG consumption, although they were not statistically significant after correcting for multiple testing. In addition, within-group comparison revealed a significant rise in total antioxidant capacity concentration (p = .001) in WG group. We observed no significant effects of WG intake on glycaemic status, blood pressure, MDA, triglyceride, and low density lipoprotein levels. WG consumption for 12 weeks could decrease serum TC levels and had no significant effects on other metabolic variables and MDA in patients with T2DM. Though observed health benefit effects were small, it might lead to a major impact on wider public health.
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Affiliation(s)
- Hamed Mohammadi
- Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Clinical Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mozhgan Karimifar
- Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zahra Heidari
- Department of Biostatistics and Epidemiology, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Maryam Zare
- Department of Clinical Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Reza Amani
- Department of Clinical Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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17
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Mărgăoan R, Stranț M, Varadi A, Topal E, Yücel B, Cornea-Cipcigan M, Campos MG, Vodnar DC. Bee Collected Pollen and Bee Bread: Bioactive Constituents and Health Benefits. Antioxidants (Basel) 2019; 8:antiox8120568. [PMID: 31756937 PMCID: PMC6943659 DOI: 10.3390/antiox8120568] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/14/2019] [Accepted: 11/18/2019] [Indexed: 12/22/2022] Open
Abstract
Bee products were historically used as a therapheutic approach and in food consumption, while more recent data include important details that could validate them as food supplements due to their bioproperties, which support their future use as medicines. In this review data, data collected from bee pollen (BP) and bee bread (BB) essays will be discussed and detailed for their nutritional and health protective properties as functional foods. Dietary antioxidants intake derived from BP and BB have been associated with the prevention and clinical treatment of multiple diseases. The beneficial effects of BP and BB on health result from the presence of multiple polyphenols which possess anti-inflammatory properties, phytosterols and fatty acids, which play anticancerogenic roles, as well as polysaccharides, which stimulate immunological activity. From the main bioactivity studies with BP and BB, in vitro studies and animal experiments, the stimulation of apoptosis and the inhibition of cell proliferation in multiple cell lines could be one of the major therapeutic adjuvant effects to be explored in reducing tumor growth. Tables summarizing the main data available in this field and information about other bio-effects of BP and BB, which support the conclusions, are provided. Additionally, a discussion about the research gaps will be presented to help further experiments that complete the tree main World Health Organization (WHO) Directives of Efficiency, Safety and Quality Control for these products.
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Affiliation(s)
- Rodica Mărgăoan
- Advanced Horticultural Research Institute of Transylvania, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania;
| | - Mirela Stranț
- Association Health with CasaBIO, 400015 Cluj-Napoca, Romania; (M.S.); (A.V.)
| | - Alina Varadi
- Association Health with CasaBIO, 400015 Cluj-Napoca, Romania; (M.S.); (A.V.)
| | - Erkan Topal
- Apiculture Section, Aegean Agricultural Research Institute, İzmir 35661, Turkey;
| | - Banu Yücel
- Department of Animal Science, Faculty of Agriculture, Ege University, İzmir 35100, Turkey;
| | - Mihaiela Cornea-Cipcigan
- Faculty of Horticulture, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania
- Correspondence: (M.C.-C.); (M.G.C.)
| | - Maria G. Campos
- Observatory of Drug-Herb Interactions, Faculty of Pharmacy, University of Coimbra, Heath Sciences Campus, Azinhaga de Santa Comba, 3000-370 Coimbra, Portugal
- Coimbra Chemistry Centre (CQC, FCT Unit 313) (FCTUC), University of Coimbra, Rua Larga, 3000-370 Coimbra, Portugal
- Correspondence: (M.C.-C.); (M.G.C.)
| | - Dan C. Vodnar
- Department of Food Science, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania;
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Kilvington A, Maldonado‐Pereira L, Torres‐Palacios C, Medina‐Meza I. Phytosterols and their oxidative products in infant formula. J FOOD PROCESS ENG 2019. [DOI: 10.1111/jfpe.13151] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Alice Kilvington
- Department of Chemical Engineering and Materials ScienceMichigan State University East Lansing Michigan
| | - Lisaura Maldonado‐Pereira
- Department of Chemical Engineering and Materials ScienceMichigan State University East Lansing Michigan
| | - Cristobal Torres‐Palacios
- Department of Biosystems and Agricultural EngineeringMichigan State University East Lansing Michigan
| | - Ilce Medina‐Meza
- Department of Chemical Engineering and Materials ScienceMichigan State University East Lansing Michigan
- Department of Biosystems and Agricultural EngineeringMichigan State University East Lansing Michigan
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19
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Suraiya S, Jang WJ, Cho HJ, Choi YB, Park HD, Kim JM, Kong IS. Immunomodulatory Effects of Monascus spp.-Fermented Sacccharina japonica Extracts on the Cytokine Gene Expression of THP-1 Cells. Appl Biochem Biotechnol 2019; 188:498-513. [PMID: 30536032 DOI: 10.1007/s12010-018-02930-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 11/30/2018] [Indexed: 12/21/2022]
Abstract
The immunomodulatory effects of Monascus-fermented Saccharina japonica extract on anti- and pro-inflammatory cytokines gene expression of THP-1 cells were evaluated. Extracts of fermented samples showed higher phenolic, flavonoid, protein, and reducing sugar contents than unfermented one. Fermented samples were rich in many bioactive compounds determined by GC-MS analyses and showed cell viability greater than 85% in MTS assay. Regarding the anti-inflammatory and pro-inflammatory activities of the different samples, Q-PCR analyses revealed that IL-10 gene expression in THP-1 cells was significantly higher (p < 0.05) in cells treated with the SjMp or SjMk sample than those treated with the unfermented sample. Cells treated with the SjMp extract or lipopolysaccharide (LPS) showed significantly (p < 0.05) higher relative gene expression of IL-4 cytokine than cells treated with SjMk or SjU extracts. The relative gene expression of IFN-α was higher in cells treated with SjMp followed by LPS, SjMk, and SjU. TGF-β expression was higher in LPS-stimulated cells followed by SjMk and other samples. Cells treated with SjMp exhibited significantly higher pro-inflammatory (IL-6, IL-8, TNF-α, and NF-κB) cytokine gene expression than cells treated with SjU. These results revealed that extracts from S. japonica fermented with Monascus spp. regulate cytokine gene expression. Graphical abstract ᅟ.
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Affiliation(s)
- Sharmin Suraiya
- Department of Biotechnology, College of Fisheries Science, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan, 48513, Republic of Korea
- Department of Fisheries and Marine Bioscience, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100, Bangladesh
| | - Won Je Jang
- Department of Biotechnology, College of Fisheries Science, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan, 48513, Republic of Korea
| | - Hwa Jin Cho
- Department of Biotechnology, College of Fisheries Science, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan, 48513, Republic of Korea
| | - Yu Bin Choi
- Department of Biotechnology, College of Fisheries Science, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan, 48513, Republic of Korea
| | - Hae Dae Park
- Department of Biotechnology, College of Fisheries Science, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan, 48513, Republic of Korea
| | - Jin-Man Kim
- Department of Biotechnology, Chonnam National University, 50, Daehak-ro, Yeosu, 59626, Republic of Korea
| | - In-Soo Kong
- Department of Biotechnology, College of Fisheries Science, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan, 48513, Republic of Korea.
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20
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Jamshidi N, Mantri N, Cohen MM. Acute effects of dietary plant nutrients on transcriptome profiles: evidence from human studies. Crit Rev Food Sci Nutr 2019; 60:1869-1880. [PMID: 31032630 DOI: 10.1080/10408398.2019.1608154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The health benefits of long-term dietary plant ingestion are well-established. However, literature on acute nutritional challenges is very limited. This study aimed to identify available evidence on transcriptomics responses to acute ingestion of plants or plant extracts and identify signature gene profiles that may serve as biomarkers of health status. We systematically searched electronic databases and extracted information based-on inclusion criteria such as human clinical studies, single plant-based nutrients and outcomes reported on acute transcriptome responses. A total of 11 studies reported on acute intake of plant dietary interventions. Four studies investigating natural oil extracts with three reporting on whole plants and two studies on natural plant-derived extracts. Gene expression was found to be associated with immune response (7 studies), inflammation (9 studies), metabolism (8 studies), cellular processes and cancer. The finding of this systematic review suggests that acute ingestion may significantly impact diverse physiological and pathological pathways including inflammatory, immune, cancer and oxidative stress pathways. Transcriptomics approach is proven to be an effective strategy in discovery of these anticipated mechanisms. Further studies are now required to validate and continue exploring the short-term health impact of dietary plants and their bioactive phytochemicals on gene expression and function.
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Affiliation(s)
- Negar Jamshidi
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, Australia
| | - Nitin Mantri
- School of Science, RMIT University, Bundoora, Victoria, Australia
| | - Marc M Cohen
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, Australia
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21
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Moreira-Rosário A, Pinheiro H, Marques C, Teixeira JA, Calhau C, Azevedo LF. Does intake of bread supplemented with wheat germ have a preventive role on cardiovascular disease risk markers in healthy volunteers? A randomised, controlled, crossover trial. BMJ Open 2019; 9:e023662. [PMID: 30659039 PMCID: PMC6340436 DOI: 10.1136/bmjopen-2018-023662] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
OBJECTIVE Intake of whole grains is associated with a reduced risk of cardiovascular disease (CVD). This evidence is also strong for bran alone, but findings about germ are conflicting. Our aim was to elucidate the role of germ in primary prevention of cardiovascular events, and therefore, a staple food was selected for 6 g of germ supplementation. This corresponds to sixfold increase in the global mean consumption of germ, while preserving the sensory proprieties of refined bread which is crucial for consumer's acceptance. DESIGN Randomised, double-blinded, crossover, controlled clinical trial with 15-week follow-up comprising a 2-week run-in, two intervention periods of 4 weeks each and a 5-week washout period. SETTING A single centre in the north of Portugal. PARTICIPANTS 55 eligible healthy adults (mean age of 34 years and body mass index between 19 and 38 kg/m2) were randomly assigned. INTERVENTIONS The study consisted of two intervention periods including daily intake of refined wheat bread enriched with 6 g of wheat germ and control (non-enriched bread). OUTCOMES Changes in fasting cholesterol and triglycerides, fasting and postprandial glucose, insulin sensitivity and C reactive protein. RESULTS We observed no significant effect of daily intake of wheat germ on cholesterol and triglycerides levels, on postprandial glucose response and on insulin sensitivity. Incremental area under curve glucose and homeostasis model assessment for insulin resistance did not change, suggesting that 6 g of wheat germ have no effect on glucose metabolism. No effect was also observed in the subgroup of participants who complied with the protocol (n=47). CONCLUSIONS The absence of alterations on lipid and glucose profiles suggests that germ up to 6 g/day may have no preventive effect on CVD risk. However, it is important to investigate other food vehicles that can accommodate higher doses of wheat germ in future studies. TRIAL REGISTRATION NUMBER NCT02405507.
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Affiliation(s)
- André Moreira-Rosário
- Centre for Health Technology and Services Research (CINTESIS), Porto, Portugal
- Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Universidade do Porto, Porto, Portugal
| | - Helder Pinheiro
- Nutrition & Metabolism, NOVA University of Lisbon, NOVA Medical School, Lisbon, Portugal
- Infectious Diseases Service, Hospital Curry Cabral, Lisboa, Portugal
| | - Cláudia Marques
- Centre for Health Technology and Services Research (CINTESIS), Porto, Portugal
- Nutrition & Metabolism, NOVA University of Lisbon, NOVA Medical School, Lisbon, Portugal
| | | | - Conceição Calhau
- Centre for Health Technology and Services Research (CINTESIS), Porto, Portugal
- Nutrition & Metabolism, NOVA University of Lisbon, NOVA Medical School, Lisbon, Portugal
| | - Luís Filipe Azevedo
- Centre for Health Technology and Services Research (CINTESIS), Porto, Portugal
- Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Universidade do Porto, Porto, Portugal
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22
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Sidhu JS, Zafar TA. Bioactive compounds in banana fruits and their health benefits. FOOD QUALITY AND SAFETY 2018. [DOI: 10.1093/fqsafe/fyy019] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Jiwan S Sidhu
- Department of Food Science & Technology, College of Life Sciences, Kuwait University, Safat, Kuwait
| | - Tasleem A Zafar
- Department of Food Science & Technology, College of Life Sciences, Kuwait University, Safat, Kuwait
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23
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Guo X, Zhang T, Shi L, Gong M, Jin J, Zhang Y, Liu R, Chang M, Jin Q, Wang X. The relationship between lipid phytochemicals, obesity and its related chronic diseases. Food Funct 2018; 9:6048-6062. [DOI: 10.1039/c8fo01026a] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This review focuses on phytochemicals in oils, and summarizes the mechanisms of the anti-obesity effects of these compounds in in vitro studies, animal models, and human trials.
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24
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Wheat germ supplementation alleviates insulin resistance and cardiac mitochondrial dysfunction in an animal model of diet-induced obesity. Br J Nutr 2017; 118:241-249. [DOI: 10.1017/s0007114517002082] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
AbstractObesity is strongly associated with insulin resistance (IR), along with mitochondrial dysfunction to metabolically active tissues and increased production of reactive O2 species (ROS). Foods rich in antioxidants such as wheat germ (WG), protect tissues from damage due to ROS and modulate some negative effects of obesity. This study examined the effects of WG supplementation on markers of IR, mitochondrial substrate metabolism and innate antioxidant markers in two metabolically active tissues (i.e. liver and heart) of C57BL/6 mice fed a high-fat–high-sucrose (HFS) diet. Male C57BL/6 mice, 6-week-old, were randomised into four dietary treatment groups (n 12 mice/group): control (C, 10 % fat kcal), C+10 % WG, HFS (60 % fat kcal) or HFS+10 % WG (HFS+WG). After 12 weeks of treatment, HFS+WG mice had significantly less visceral fat (−16 %, P=0·006) compared with the HFS group. WG significantly reduced serum insulin (P=0·009), the insulinotropic hormone, gastric inhibitory peptide (P=0·0003), and the surrogate measure of IR, homoeostatic model assessment of IR (P=0·006). HFS diet significantly elevated (45 %, P=0·02) cardiac complex 2 mitochondrial VO2, suggesting increased metabolic stress, whereas WG stabilised this effect to the level of control. Consequently, genes which mediate antioxidant defense and mitochondrial biogenesis (superoxide dismutase 2 (Sod2) and PPARγ coactivator 1-α (Pgc1a), respectively) were significantly reduced (P<0·05) in the heart of the HFS group, whereas WG supplementation tended to up-regulate both genes. WG significantly increased hepatic gene expression of Sod2 (P=0·048) but not Pgc1a. Together, these results showed that WG supplementation in HFS diet, reduced IR and improved cardiac mitochondrial metabolic functions.
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25
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Singh B, Singh JP, Kaur A, Singh N. Bioactive compounds in banana and their associated health benefits – A review. Food Chem 2016; 206:1-11. [DOI: 10.1016/j.foodchem.2016.03.033] [Citation(s) in RCA: 142] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 02/23/2016] [Accepted: 03/10/2016] [Indexed: 12/13/2022]
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26
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Sujith Kumar MS, Mawlong I, Singh D. Phytosterol recovery from oilseeds: Recent advances. J FOOD PROCESS ENG 2016. [DOI: 10.1111/jfpe.12466] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. S. Sujith Kumar
- ICAR-Directorate of Rapeseed-Mustard Research; Bharatpur Rajasthan India
| | - Ibandalin Mawlong
- ICAR-Directorate of Rapeseed-Mustard Research; Bharatpur Rajasthan India
| | - Dhiraj Singh
- ICAR-Directorate of Rapeseed-Mustard Research; Bharatpur Rajasthan India
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27
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Beiranvand MH, Khosravinia H, Azarfar A, Rafiei Alavai E. Effects of in-yolk-sac administration of carvacrol on cholesterol resorption from yolk residuals and physiological adaptive indicators in broiler chicks exposed to neonatal fasting. Arch Anim Breed 2016. [DOI: 10.5194/aab-59-249-2016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Abstract. Three hundred and twenty Ross 308 male broiler chicks were used to examine effects of in-yolk-sac (IYS) administration of carvacrol on cholesterol resorption from yolk and physiological adaptive responses of broiler chicks subjected to post-hatch fasting periods of up to 72 h. Effects of the four experimental treatments, namely non-handled control (NHCON), sham injection control (SICON), polysorbate-80 injection (POLS), and carvacrol injection (CARV), were examined in 5 replicates of 10 birds each. Liver proportional weight was greater in carvacrol-injected chicks compared with other birds 24 h post-hatch (P < 0.05). The mean blood glucose concentration was 199.0 mg dL−1 when chicks were removed from the hatcher baskets, and decreased in all birds after being subjected to a 72 h post-hatch fasting. However, the slope of decrease in serum concentration of glucose was slower in carvacrol-injected birds than in the other birds, and they had a greater plasma glucose level compared with NHCON and SICON birds after 72 h post-hatch fasting. Lower plasma cholesterol levels were observed in carvacrol-treated chicks compared with those subjected to the other treatments at 72 h post-hatch (P < 0.05). Blood concentration of calcium (Ca) was greater in carvacrol-injected birds at 24 h post-hatch than in NHCON and SICON birds (P < 0.05), but at 72 h it significantly increased in all birds, with the exception of carvacrol-treated chicks, which had significantly lower blood Ca concentration (11.17 mg dL−1) compared with other birds (P < 0.05). Blood potassium concentration increased in polysorbate-80 and carvacrol-injected chicks 24 h post-hatch compared with the NHCON and SICON birds (P < 0.05). In conclusion, the results of the current study revealed that there was no direct interaction between cholesterol and carvacrol leading to reduced cholesterol absorption from yolk sac in newly hatched broiler chicks.
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Das M, Malipeddi H, Nambiraj NA, Rajan R. Phytochemical Analysis, Antioxidant Activity and In Vitro
Growth Inhibition of Struvite Crystals by I
pomoea Eriocarpa
Leaf Extracts. J Food Biochem 2015. [DOI: 10.1111/jfbc.12205] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Moonjit Das
- Pharmaceutical Chemistry Division; School of Advanced Sciences; VIT University; Vellore 632014 Tamil Nadu India
| | - Himaja Malipeddi
- Pharmaceutical Chemistry Division; School of Advanced Sciences; VIT University; Vellore 632014 Tamil Nadu India
| | - N. Arunai Nambiraj
- Photonics, Nuclear and Medical Physics Division; School of Advanced Sciences; VIT University; Vellore 632014 Tamil Nadu India
| | - Reshma Rajan
- Photonics, Nuclear and Medical Physics Division; School of Advanced Sciences; VIT University; Vellore 632014 Tamil Nadu India
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The effects of fermented wheat powder (Lisosan G) on the blood lipids and oxidative status of healthy rabbits. Food Chem Toxicol 2015; 84:1-7. [DOI: 10.1016/j.fct.2015.07.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2015] [Revised: 06/26/2015] [Accepted: 07/06/2015] [Indexed: 12/31/2022]
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Gao J, Chen S, Zhang L, Cheng B, Xu A, Wu L, Zhang X. Evaluation of cytotoxic and apoptotic effects of individual and mixed 7-ketophytosterol oxides on human intestinal carcinoma cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:1035-1041. [PMID: 25542134 DOI: 10.1021/jf505079v] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Phytosterol oxidation products (POPs) are constituents of the human diet. Definitive information on the toxic or biological effects of POPs is limited and in some cases contradictory. This study evaluates the cytotoxicity of four individual 7-ketophytosterol oxides, including 7-ketositosterol (7K-SI), 7-ketocampesterol (7K-CA), 7-ketobrassicasterol (7K-BR), 7-ketostigmasterol (7K-ST), and a mixture of 7-ketophytosterols (7K-MIX) toward a human intestinal carcinoma (HIC) cell line. Results showed that all tested compounds reduced cell proliferation in a dose-dependent manner; especially 7K-SI and 7K-CA exhibited higher activities. Both compounds increased early apoptotic cells and caused cell cycle arrest in the G1 phase with cell accumulation in the S phase. No evidence of cell death was observed induced by 7K-ST and 7K-MIX. Furthermore, 7K-SI, 7K-CA, and 7K-BR induced apoptosis by enhancing caspase-3 activity and the modulatory effects of Bcl-2, while 7K-ST and 7K-MIX did not involve caspase-3 activation and Bcl-2 down-regulation.
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Affiliation(s)
- Junlan Gao
- School of Life Sciences, Anhui Agricultural University , 130 Changjiang West Road, Hefei 230036, People's Republic of China
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Ogbonnaya EC, Chinedum EK. Health promoting compounds and in vitro antioxidant activity of raw and decoctions of Gnetum aficanum Welw. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2013; 3. [PMCID: PMC4027339 DOI: 10.1016/s2222-1808(13)60103-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Objective To investigate the effect of Gnetum africanum on its pharmacopotency as well as its nutritional properties. Methods The total chlorophyll, carotenoids, proximates, phytochemicals, minerals, vitamins as well as antioxidant assays were performed using standard techniques. Results The raw leaves of the vegetable (Gnetum africanum) possessed significant amounts of proximates, phytochemicals, minerals, vitamins, chlorophyll as well as antioxidant activity, but had low levels of carbohydrates and energy value. The cooking method adopted resulted in insignificant loss of lipids, carbohydrates, vitamins, phytochemicals, chlorophyll, significant loss of energy and carotenoids (P<0.05), insignificant increase in moisture, crude fibre, crude protein, Ca, Fe, Zn, but significant increase in ash, Mg and P (P<0.05). Conclusions The conventional method of cooking the raw Gnetum africana in Nigeria results in insignificant loss of its lipids, carbohydrates, vitamins, phytochemicals, chlorophyll, significant loss of its energy and carotenoids (P<0.05), insignificant increase in its moisture, crude fibre, crude protein, Ca, Fe, Zn, but significant increase in its ash, Mg and P contents as well as its antioxidant capacity which confers high pharmaco potency to the cooked form of this vegetable, justifying its usage in the dietary management of a wide array of diseases in Nigeria. The results obtained are discussed from a biochemical point of view.
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Affiliation(s)
- Eleazu Chinedum Ogbonnaya
- *Corresponding author: Eleazu Chinedum Ogbonnaya, Department of Biochemistry, National Root Crops Research Institute, Umudike, Nigeria. Tel: +2348034164686 E-mail:
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Arshad MS, Anjum FM, Khan MI, Shahid M. Wheat germ oil and α-lipoic acid predominantly improve the lipid profile of broiler meat. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:11158-11165. [PMID: 24191686 DOI: 10.1021/jf4041029] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In response to recent assertions that synthetic antioxidants may have the potential to cause toxic effects and to consumers' increased attention to consuming natural products, the poultry industry has been seeking sources of natural antioxidants, alone or in combination with synthetic antioxidants that are currently being used by the industry. The present study was conducted to determine the effect of α-lipoic acid, α-tocopherol, and wheat germ oil on the status of antioxidant enzymes, fatty acid profile, and serum biochemical profile of broiler blood. One-day-old (180) broiler birds were fed six different feeds varying in their antioxidant content: no addition (T1), natural α-tocopherol (wheat germ oil, T2), synthetic α-tocopherol (T3), α-lipoic acid (T4), α-lipoic acid together with natural α-tocopherol (T5), and α-lipoic acid together with synthetic α-tocopherol (T6). The composition of saturated and unsaturated fatty acids in the breast and leg meat was positively influenced by the different dietary supplements. The content of fatty acid was significantly greater in broilers receiving T2 both in breast (23.92%) and in leg (25.82%) meat, whereas lower fatty acid levels was found in broilers receiving diets containing T6 in the breast (19.57%) and leg (21.30%) meat. Serum total cholesterol (113.42 mg/dL) and triglycerides (52.29 mg/dL) were lowest in the group given natural α-tocopherol and α-lipoic acid. Wheat germ oil containing natural α-tocopherol alone or with α-lipoic acid was more effective than synthetic α-tocopherol in raising levels of antioxidant enzymes superoxide dismutase, catalase, and glutathione reductase while lowering plasma total cholesterol, low-density lipoprotein, and triglycerides and raising high-density lipoprotein and plasma protein significantly. It was concluded that the combination of wheat germ oil and α-lipoic acid is helpful in improving the lipid profile of broilers.
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Affiliation(s)
- Muhammad Sajid Arshad
- National Institute of Food Science and Technology and ‡Department of Chemistry and Biochemistry, University of Agriculture , Faisalabad, Pakistan
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Klingberg S, Ellegård L, Johansson I, Jansson JH, Hallmans G, Winkvist A. Dietary intake of naturally occurring plant sterols is related to a lower risk of a first myocardial infarction in men but not in women in northern Sweden. J Nutr 2013; 143:1630-5. [PMID: 23925940 DOI: 10.3945/jn.113.178707] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Dietary intake of naturally occurring plant sterols is inversely related to serum cholesterol concentrations. Elevated serum cholesterol increases the risk of myocardial infarction (MI), but it is unknown if this can be reduced by dietary intake of naturally occurring plant sterols. Our aim was to investigate if a high intake of naturally occurring plant sterols is related to a lower risk of contracting a first MI. The analysis included 1005 prospective cases (219 women, 786 men) and 3148 matched referents (723 women, 2425 men), aged 29-73 y at baseline, from the population-based Northern Sweden Health and Disease Study. A food frequency questionnaire (FFQ) was completed at baseline. Absolute plant sterol intake was inversely related to the risk of a first MI in men (OR highest vs. lowest quartile = 0.70; 95% CI: 0.53, 0.85; P-trend = 0.006) but not in women. After adjustment for confounders, the estimated risk was somewhat attenuated (OR highest vs. lowest quartile = 0.71; 95% CI: 0.55, 0.92; P-trend = 0.067), suggesting that increasing sterol intake from 150 to 340 mg/d reduces the risk of a first MI by 29%. Energy-adjusted plant sterol intake was not related to the risk of a first MI in either men or women. In conclusion, the findings of this observational study show that a high absolute intake of naturally occurring plant sterols is significantly related to a lower risk of a first MI in men in northern Sweden, whereas no significant relation was seen for energy-adjusted plant sterol intake. In women, no significant associations were found. The results from this study show that intake of plant sterols may be important in prevention of MI.
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Affiliation(s)
- Sofia Klingberg
- Department of Internal Medicine and Clinical Nutrition, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Pasha I, Saeed F, Waqas K, Anjum FM, Arshad MU. Nutraceutical and functional scenario of wheat straw. Crit Rev Food Sci Nutr 2013; 53:287-95. [PMID: 23216000 DOI: 10.1080/10408398.2010.528080] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
In the era of nutrition, much focus has been remunerated to functional and nutraceutical foodstuffs. The health endorsing potential of such provisions is attributed to affluent phytochemistry. These dynamic constituents have functional possessions that are imperative for cereal industry. The functional and nutraceutical significance of variety of foods is often accredited to their bioactive molecules. Numerous components have been considered but wheat straw and its diverse components are of prime consideration. In this comprehensive dissertation, efforts are directed to elaborate the functional and nutraceutical importance of wheat straw. Wheat straw is lignocellulosic materials including cellulose, hemicellulose and lignin. It hold various bioactive compounds such as policosanols, phytosterols, phenolics, and triterpenoids, having enormous nutraceutical properties like anti-allergenic, anti-artherogenic, anti-inflammatory, anti-microbial, antioxidant, anti-thrombotic, cardioprotective and vasodilatory effects, antiviral, and anticancer. These compounds are protecting against various ailments like hypercholesterolemia, intermittent claudication, benign prostatic hyperplasia and cardiovascular diseases. Additionally, wheat straw has demonstrated successfully, low cost, renewable, versatile, widely distributed, easily available source for the production of biogas, bioethanol, and biohydrogen in biorefineries to enhance the overall effectiveness of biomass consumption in protected and eco-friendly environment. Furthermore, its role in enhancing the quality and extending the shelf life of bakery products through reducing the progression of staling and retrogradation is limelight of the article.
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Affiliation(s)
- Imran Pasha
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
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Aly KA, Beebe ET, Chan CH, Goren MA, Sepúlveda C, Makino SI, Fox BG, Forest KT. Cell-free production of integral membrane aspartic acid proteases reveals zinc-dependent methyltransferase activity of the Pseudomonas aeruginosa prepilin peptidase PilD. Microbiologyopen 2012; 2:94-104. [PMID: 23255525 PMCID: PMC3584216 DOI: 10.1002/mbo3.51] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Revised: 10/30/2012] [Accepted: 11/05/2012] [Indexed: 12/25/2022] Open
Abstract
Integral membrane aspartic acid proteases are receiving growing recognition for their fundamental roles in cellular physiology of eukaryotes and prokaryotes, and may be medically important pharmaceutical targets. The Gram-negative Pseudomonas aeruginosa PilD and the archaeal Methanococcus voltae FlaK were synthesized in the presence of unilamellar liposomes in a cell-free translation system. Cosynthesis of PilD with its full-length substrate, PilA, or of FlaK with its full-length substrate, FlaB2, led to complete cleavage of the substrate signal peptides. Scaled-up synthesis of PilD, followed by solubilization in dodecyl-β-d-maltoside and chromatography, led to a pure enzyme that retained both of its known biochemical activities: cleavage of the PilA signal peptide and S-adenosyl methionine-dependent methylation of the mature pilin. X-ray fluorescence scans show for the first time that PilD is a zinc-binding protein. Zinc is required for the N-terminal methylation of the mature pilin, but not for signal peptide cleavage. Taken together, our work identifies the P. aeruginosa prepilin peptidase PilD as a zinc-dependent N-methyltransferase and provides a new platform for large-scale synthesis of PilD and other integral membrane proteases important for basic microbial physiology and virulence.
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Affiliation(s)
- Khaled A Aly
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI 53706, USA
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Abstract
The pistachio is a nutrient-dense nut with a heart-healthy fatty-acid profile as well as protein, dietary fiber, potassium, magnesium, vitamin K, γ-tocopherol, and a number of phytochemicals. The pistachio's unique green and purple kernel color is a result of its lutein and anthocyanin content. Among nuts, pistachios contain the highest levels of potassium, γ-tocopherol, vitamin K, phytosterols, and xanthophyll carotenoids. Five published randomized cardiovascular trials have shown that pistachios promote heart-healthy blood lipid profiles. Exploratory clinical studies suggest that pistachios help maintain healthy antioxidant and anti-inflammatory activity, glycemic control, and endothelial function. When consumed in moderation, pistachios may help control body weight because of their satiety and satiation effects and their reduced net metabolizable energy content. One study with subjects in a weight-loss program demonstrated lower body mass index and triglyceride levels in individuals who consumed pistachios compared with those who consumed an isocaloric pretzel snack. Emerging research suggests that the addition of pistachios to high-glycemic meals may lower the overall postprandial glycemic response. This review examines the nutrients and phytochemicals in pistachios as well as the potential health effects of these nuts.
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Affiliation(s)
- Mark L Dreher
- Nutrition Science Solutions, 900 S. Rainbow Ranch Road, Wimberley, Texas 78676, USA.
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McDonald JG, Smith DD, Stiles AR, Russell DW. A comprehensive method for extraction and quantitative analysis of sterols and secosteroids from human plasma. J Lipid Res 2012; 53:1399-409. [PMID: 22517925 DOI: 10.1194/jlr.d022285] [Citation(s) in RCA: 162] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
We describe the development of a method for the extraction and analysis of 62 sterols, oxysterols, and secosteroids from human plasma using a combination of HPLC-MS and GC-MS. Deuterated standards are added to 200 μl of human plasma. Bulk lipids are extracted with methanol:dichloromethane, the sample is hydrolyzed using a novel procedure, and sterols and secosteroids are isolated using solid-phase extraction (SPE). Compounds are resolved on C₁₈ core-shell HPLC columns and by GC. Sterols and oxysterols are measured using triple quadrupole mass spectrometers, and lathosterol is measured using GC-MS. Detection for each compound measured by HPLC-MS was ∪ 1 ng/ml of plasma. Extraction efficiency was between 85 and 110%; day-to-day variability showed a relative standard error of <10%. Numerous oxysterols were detected, including the side chain oxysterols 22-, 24-, 25-, and 27-hydroxycholesterol, as well as ring-structure oxysterols 7α- and 4β-hydroxycholesterol. Intermediates from the cholesterol biosynthetic pathway were also detected, including zymosterol, desmosterol, and lanosterol. This method also allowed the quantification of six secosteroids, including the 25-hydroxylated species of vitamins D₂ and D₃. Application of this method to plasma samples revealed that at least 50 samples could be extracted in a routine day.
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Affiliation(s)
- Jeffrey G McDonald
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
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Puiggròs F, Solà R, Bladé C, Salvadó MJ, Arola L. Nutritional biomarkers and foodomic methodologies for qualitative and quantitative analysis of bioactive ingredients in dietary intervention studies. J Chromatogr A 2011; 1218:7399-414. [PMID: 21917262 DOI: 10.1016/j.chroma.2011.08.051] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Revised: 08/04/2011] [Accepted: 08/09/2011] [Indexed: 01/16/2023]
Abstract
Traditional dietary assessment methods, such as 24-h recalls, weighted food diaries and food frequency questionnaires (FFQs) are highly subjective and impair the assessment of successfully accomplished dietary interventions. Foodomic technologies offer promising methodologies for gathering scientific evidence from clinical trials with sensitive methods (e.g., GC-MS, LC-MS, CE, NMR) to detect and quantify markers of nutrient exposure or subtle changes in dietary patterns. This review provides a summary of recently developed foodomic methodologies for the detection of suggested biomarkers, including the food specificity for each suggested biomarker and a brief description of the key aspects of 24-h recalls that may affect marker detection and stability, such as mixed nutrients and cooking processes. The primary aim of this review is to contribute to the assessment of the metabolic effects of active ingredients and foods using cutting-edge methods to improve approaches to future nutritional programs tailored for health maintenance and disease prevention.
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Affiliation(s)
- Francesc Puiggròs
- Centre Tecnològic de Nutrició i Salut (CTNS), TECNIO, Universitat Rovira i Virgili, Reus, Spain
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Ash MM, Wolford KA, Carden TJ, Hwang KT, Carr TP. Unrefined and refined black raspberry seed oils significantly lower triglycerides and moderately affect cholesterol metabolism in male Syrian hamsters. J Med Food 2011; 14:1032-8. [PMID: 21548801 DOI: 10.1089/jmf.2010.0181] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Unrefined and refined black raspberry seed oils (RSOs) were examined for their lipid-modulating effects in male Syrian hamsters fed high-cholesterol (0.12% g/g), high-fat (9% g/g) diets. Hamsters fed the refined and the unrefined RSO diets had equivalently lower plasma total cholesterol and high-density lipoprotein (HDL) cholesterol in comparison with the atherogenic coconut oil diet. The unrefined RSO treatment group did not differ in liver total and esterified cholesterol from the coconut oil-fed control animals, but the refined RSO resulted in significantly elevated liver total and esterified cholesterol concentrations. The unrefined RSO diets significantly lowered plasma triglycerides (46%; P=.0126) in comparison with the coconut oil diet, whereas the refined RSO only tended to lower plasma triglyceride (29%; P=.1630). Liver triglyceride concentrations were lower in the unrefined (46%; P=.0002) and refined (36%; P=.0005) RSO-fed animals than the coconut oil group, with the unrefined RSO diet eliciting a lower concentration than the soybean oil diet. Both RSOs demonstrated a null or moderate effect on cholesterol metabolism despite enrichment in linoleic acid, significantly lowering HDL cholesterol but not non-HDL cholesterol. Dramatically, both RSOs significantly reduced hypertriglyceridemia, most likely due to enrichment in α-linolenic acid. As a terrestrial source of α-linolenic acid, black RSOs, both refined and unrefined, provide a promising alternative to fish oil supplementation in management of hypertriglyceridemia, as demonstrated in hamsters fed high levels of dietary triglyceride and cholesterol.
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Affiliation(s)
- Mark M Ash
- Department of Nutrition and Health Sciences, University of Nebraska, Lincoln, Nebraska 68583-0806, USA
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Lin X, Ma L, Moreau RA, Ostlund RE. Glycosidic bond cleavage is not required for phytosteryl glycoside-induced reduction of cholesterol absorption in mice. Lipids 2011; 46:701-8. [PMID: 21538209 DOI: 10.1007/s11745-011-3560-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2011] [Accepted: 04/15/2011] [Indexed: 10/18/2022]
Abstract
Phytosteryl glycosides occur in natural foods but little is known about their metabolism and bioactivity. Purified acylated steryl glycosides (ASG) were compared with phytosteryl esters (PSE) in mice. Animals on a phytosterol-free diet received ASG or PSE by gavage in purified soybean oil along with tracers cholesterol-d(7) and sitostanol-d(4). In a three-day fecal recovery study, ASG reduced cholesterol absorption efficiency by 45 ± 6% compared with 40 ± 6% observed with PSE. Four hours after gavage, plasma and liver cholesterol-d(7) levels were reduced 86% or more when ASG was present. Liver total phytosterols were unchanged after ASG administration but were significantly increased after PSE. After ASG treatment both ASG and deacylated steryl glycosides (SG) were found in the gut mucosa and lumen. ASG was quantitatively recovered from stool samples as SG. These results demonstrate that ASG reduces cholesterol absorption in mice as efficiently as PSE while having little systemic absorption itself. Cleavage of the glycosidic linkage is not required for biological activity of ASG. Phytosteryl glycosides should be included in measurements of bioactive phytosterols.
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Affiliation(s)
- Xiaobo Lin
- Division of Endocrinology, Metabolism and Lipid Research, Department of Medicine, Washington University School of Medicine, Campus Box 8127, 660 South Euclid Ave., St. Louis, MO 63110, USA
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Lin X, Racette SB, Lefevre M, Spearie CA, Most M, Ma L, Ostlund RE. The effects of phytosterols present in natural food matrices on cholesterol metabolism and LDL-cholesterol: a controlled feeding trial. Eur J Clin Nutr 2010; 64:1481-7. [PMID: 20808333 PMCID: PMC3715129 DOI: 10.1038/ejcn.2010.180] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2010] [Revised: 06/15/2010] [Accepted: 06/17/2010] [Indexed: 11/09/2022]
Abstract
BACKGROUND/OBJECTIVES Extrinsic phytosterols supplemented to the diet reduce intestinal cholesterol absorption and plasma low-density lipoprotein (LDL)-cholesterol. However, little is known about their effects on cholesterol metabolism when given in native, unpurified form and in amounts achievable in the diet. The objective of this investigation was to test the hypothesis that intrinsic phytosterols present in unmodified foods alter whole-body cholesterol metabolism. SUBJECTS/METHODS In all, 20 out of 24 subjects completed a randomized, crossover feeding trial wherein all meals were provided by a metabolic kitchen. Each subject consumed two diets for 4 weeks each. The diets differed in phytosterol content (phytosterol-poor diet, 126 mg phytosterols/2000 kcal; phytosterol-abundant diet, 449 mg phytosterols/2000 kcal), but were otherwise matched for nutrient content. Cholesterol absorption and excretion were determined by gas chromatography/mass spectrometry after oral administration of stable isotopic tracers. RESULTS The phytosterol-abundant diet resulted in lower cholesterol absorption (54.2±2.2% (95% confidence interval 50.5%, 57.9%) vs 73.2±1.3% (69.5%, 76.9%), P<0.0001) and 79% higher fecal cholesterol excretion (1322±112 (1083.2, 1483.3) vs 739±97 mg/day (530.1, 930.2), P<0.0001) relative to the phytosterol-poor diet. Plasma lathosterol/cholesterol ratio rose by 82% (from 0.71±0.11 (0.41, 0.96) to 1.29±0.14 μg/mg (0.98, 1.53), P<0.0001). LDL-cholesterol was similar between diets. CONCLUSIONS Intrinsic phytosterols at levels present in a healthy diet are biologically active and have large effects on whole-body cholesterol metabolism not reflected in circulating LDL. More work is needed to assess the effects of phytosterol-mediated fecal cholesterol excretion on coronary heart disease risk in humans.
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Affiliation(s)
- Xiaobo Lin
- Division of Endocrinology, Metabolism and Lipid Research, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Susan B. Racette
- Division of Endocrinology, Metabolism and Lipid Research, Department of Medicine, Washington University School of Medicine, St. Louis, MO
- Program in Physical Therapy, Washington University School of Medicine, St. Louis, MO
| | | | | | - Marlene Most
- Pennington Biomedical Research Center, Baton Rouge, LA
| | - Lina Ma
- Division of Endocrinology, Metabolism and Lipid Research, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Richard E. Ostlund
- Division of Endocrinology, Metabolism and Lipid Research, Department of Medicine, Washington University School of Medicine, St. Louis, MO
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Scientific Opinion on the substantiation of health claims related to wheat germ oil and maintenance of normal blood pressure (ID 1386), maintenance of normal blood cholesterol concentrations (ID 599, 2618), maintenance of normal (fasting) blood concentrat. EFSA J 2010. [DOI: 10.2903/j.efsa.2010.1762] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Nurmi T, Lampi AM, Nyström L, Piironen V. Effects of environment and genotype on phytosterols in wheat in the HEALTHGRAIN diversity screen. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:9314-23. [PMID: 20377252 DOI: 10.1021/jf100192t] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The effects of environment on the content and composition of phytosterols were examined in 26 wheat genotypes grown at four locations in Europe during a single year and at one location over three consecutive years. Total phytosterol contents varied among the locations, whereas no effect was found for the harvesting year. A significant genetic variation was observed in total sterol contents (700-928 microg/g of dm). The genotype and environment resulted in statistically significant differences in the proportions of the main phytosterols. The high phytosterol contents were characterized by low proportions of sitosterol and high proportions of stanols. Small wheat kernels with proportionally high bran yield and lipid content contained higher levels of phytosterols than large kernels. Knowledge of the level and variability of phytosterols in wheat enables the selection of genotypes with high and stabile phytosterol contents for cultivation or plant breeding purposes.
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Affiliation(s)
- Tanja Nurmi
- Department of Food and Environmental Sciences, University of Helsinki, Latokartanonkaari 11, P.O. Box 27, FIN-00014 University of Helsinki, Finland.
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Shin EC, Pegg RB, Phillips RD, Eitenmiller RR. Commercial peanut (Arachis hypogaea L.) cultivars in the United States: phytosterol composition. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:9137-9146. [PMID: 20677801 DOI: 10.1021/jf102150n] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Phytosterols in commercially grown Runner, Virginia, and Spanish peanuts (n = 221) from 2005 and 2006 were quantified by a combination of acid hydrolysis and alkaline saponification steps followed by gas chromatography-flame ionization detection and gas chromatography-mass spectrometry analysis of the trimethylsilyl derivatives. Δ(5)-Avenasterol, which partially degrades during acid hydrolysis, was quantified after alkaline saponification plus direct analysis of the steryl glucosides isolated by solid-phase extraction. β-Sitosterol, Δ(5)-avenasterol, campesterol, and stigmasterol were identified in peanut lipid extracts as the dominant sterols by retention time mapping and mass spectra with recoveries ∼99%. Clerosterol, Δ(5,24(25))-stigmastadienol, Δ(7)-sitosterol + cycloartenol, and one unidentified sterol were also present but at low levels. Free and esterified phytosterols accounted for ∼80% of the total sterols determined; the remainder was attributed to steryl glucosides. The total sterol level in Spanish market type peanuts (144.1 ± 5.3 mg/100 g) was significantly greater than both Runners (127.5 ± 6.3 mg/100 g) and Virginias (129.3 ± 6.9 mg/100 g) (P < 0.05). Tamspan 90 (146.9 mg/100 g) followed by OLIN (138.5 mg/100 g) showed the highest total sterol content among the cultivars examined. Cultivar effects were strongly significant (P < 0.001) for all phytosterols, whereas production year effects were strongly significant (P < 0.001) for Δ(5)-avenasterol, Δ(5,24(25))-stigmastadienol, and the combined quantities of Δ(7)-sitosterol + cycloartenol, which coeluted. Cultivar × year interactions were strongly significant (P < 0.001) in all sterols except for Δ(7)-sitosterol + cycloartenol (P < 0.01). Total phytosterol contents were markedly higher than those reported in the existing literature for Runner and Virginia type peanuts, partially attributed to the inclusion of steryl glucosides in the analysis.
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Affiliation(s)
- Eui-Cheol Shin
- Department of Food Science & Technology, The University of Georgia, 100 Cedar Street, Athens, Georgia 30602-7610, USA
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New hypotheses for the health-protective mechanisms of whole-grain cereals: what is beyond fibre? Nutr Res Rev 2010; 23:65-134. [PMID: 20565994 DOI: 10.1017/s0954422410000041] [Citation(s) in RCA: 587] [Impact Index Per Article: 41.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Epidemiological studies have clearly shown that whole-grain cereals can protect against obesity, diabetes, CVD and cancers. The specific effects of food structure (increased satiety, reduced transit time and glycaemic response), fibre (improved faecal bulking and satiety, viscosity and SCFA production, and/or reduced glycaemic response) and Mg (better glycaemic homeostasis through increased insulin secretion), together with the antioxidant and anti-carcinogenic properties of numerous bioactive compounds, especially those in the bran and germ (minerals, trace elements, vitamins, carotenoids, polyphenols and alkylresorcinols), are today well-recognised mechanisms in this protection. Recent findings, the exhaustive listing of bioactive compounds found in whole-grain wheat, their content in whole-grain, bran and germ fractions and their estimated bioavailability, have led to new hypotheses. The involvement of polyphenols in cell signalling and gene regulation, and of sulfur compounds, lignin and phytic acid should be considered in antioxidant protection. Whole-grain wheat is also a rich source of methyl donors and lipotropes (methionine, betaine, choline, inositol and folates) that may be involved in cardiovascular and/or hepatic protection, lipid metabolism and DNA methylation. Potential protective effects of bound phenolic acids within the colon, of the B-complex vitamins on the nervous system and mental health, of oligosaccharides as prebiotics, of compounds associated with skeleton health, and of other compounds such as alpha-linolenic acid, policosanol, melatonin, phytosterols and para-aminobenzoic acid also deserve to be studied in more depth. Finally, benefits of nutrigenomics to study complex physiological effects of the 'whole-grain package', and the most promising ways for improving the nutritional quality of cereal products are discussed.
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Racette SB, Lin X, Lefevre M, Spearie CA, Most MM, Ma L, Ostlund RE. Dose effects of dietary phytosterols on cholesterol metabolism: a controlled feeding study. Am J Clin Nutr 2010; 91:32-8. [PMID: 19889819 PMCID: PMC2793103 DOI: 10.3945/ajcn.2009.28070] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2009] [Accepted: 10/09/2009] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Phytosterol supplementation of 2 g/d is recommended by the National Cholesterol Education Program to reduce LDL cholesterol. However, the effects of different intakes of phytosterol on cholesterol metabolism are uncertain. OBJECTIVE We evaluated the effects of 3 phytosterol intakes on whole-body cholesterol metabolism. DESIGN In this placebo-controlled, crossover feeding trial, 18 adults received a phytosterol-deficient diet (50 mg phytosterols/2000 kcal) plus beverages supplemented with 0, 400, or 2000 mg phytosterols/d for 4 wk each, in random order. All meals were prepared in a metabolic kitchen; breakfast and dinner on weekdays were eaten on site. Primary outcomes were fecal cholesterol excretion and intestinal cholesterol absorption measured with stable-isotope tracers and serum lipoprotein concentrations. RESULTS Phytosterol intakes (diet plus supplements) averaged 59, 459, and 2059 mg/d during the 3 diet periods. Relative to the 59-mg diet, the 459- and 2059-mg phytosterol intakes significantly (P < 0.01) increased total fecal cholesterol excretion (36 +/- 6% and 74 +/- 10%, respectively) and biliary cholesterol excretion (38 +/- 7% and 77 +/- 12%, respectively) and reduced percentage intestinal cholesterol absorption (-10 +/- 1% and -25 +/- 3%, respectively). Serum LDL cholesterol declined significantly only with the highest phytosterol dose (-8.9 +/- 2.3%); a trend was observed with the 459-mg/d dose (-5.0 +/- 2.1%; P = 0.077). CONCLUSIONS Dietary phytosterols in moderate and high doses favorably alter whole-body cholesterol metabolism in a dose-dependent manner. A moderate phytosterol intake (459 mg/d) can be obtained in a healthy diet without supplementation. This trial was registered at clinicaltrials.gov as NCT00860054.
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Affiliation(s)
- Susan B Racette
- Washington University School of Medicine, St Louis, MO, and the Pennington Biomedical Research Center, Baton Rouge, LA 63108, USA.
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Escurriol V, Cofán M, Ros E. Fitoesteroles circulantes: biomarcadores de la absorción de los esteroles de la dieta habitual y de adherencia a alimentos suplementados con esteroles vegetales. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/s1138-0322(10)70002-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Racette SB, Spearie CA, Phillips KM, Lin X, Ma L, Ostlund RE. Phytosterol-deficient and high-phytosterol diets developed for controlled feeding studies. ACTA ACUST UNITED AC 2009; 109:2043-51. [PMID: 19942022 DOI: 10.1016/j.jada.2009.09.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2008] [Accepted: 04/30/2009] [Indexed: 02/07/2023]
Abstract
Phytosterols reduce cholesterol absorption and low-density lipoprotein cholesterol concentrations, but the quantity and physiological significance of phytosterols in common diets are generally unknown because nutrient databases do not contain comprehensive phytosterol data. The primary aim of this study was to design prototype phytosterol-deficient and high-phytosterol diets for use in controlled feeding studies of the influence of phytosterols on health. A second aim was to quantify the phytosterol content of these prototype diets and three other diets consumed in the United States. This study was conducted from June 2001 to September 2008 and involved designing, preparing, and then analyzing five different diets: an experimental phytosterol-deficient control diet, a relatively high-phytosterol diet based on the Dietary Approaches to Stop Hypertension diet, American Heart Association diet, Atkins lifetime maintenance plan, and a vegan diet. A single day of meals for each diet was homogenized and the resulting composites were analyzed for free, esterified, and glycosylated phytosterols by gas chromatography. Independent samples t tests were used to compare the diets' total phytosterol content. The total phytosterol content of the experimental phytosterol-deficient diet was 64 mg/2,000 kcal, with progressively larger quantities in Atkins, American Heart Association, vegan, and the high-phytosterol Dietary Approaches to Stop Hypertension diet (163, 340, 445, and 500 mg/2,000 kcal, respectively). Glycosylated phytosterols, which are often excluded from phytosterol analyses, comprised 15.9%+/-5.9% of total phytosterols. In summary, phytosterol-deficient and high-phytosterol diets that conform to recommended macronutrient guidelines and are palatable can now be used in controlled feeding studies.
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Affiliation(s)
- Susan B Racette
- Department of Medicine and Program in Physical Therapy, Washington University School of Medicine, Campus Box 8502, 4444 Forest Park Ave, St Louis, MO 63108, USA.
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Hearty ÁP, Duffy E, Gibney MJ. Intake estimates of naturally occurring phytosterols using deterministic and probabilistic methods in a representative Irish population. Int J Food Sci Nutr 2009; 60:533-46. [DOI: 10.1080/09637480801892437] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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