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Febriyanti RM, Levita J, Diantini A. Immunomodulatory Role of Plants and Their Constituents on the Management of Metabolic Disorders: An Evidence-Based Review. Drug Des Devel Ther 2024; 18:513-534. [PMID: 38415194 PMCID: PMC10898480 DOI: 10.2147/dddt.s442566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 02/13/2024] [Indexed: 02/29/2024] Open
Abstract
The relationship between the immune system and metabolic diseases is complex and increasingly recognized as critical to understanding conditions like obesity, diabetes, and cardiovascular diseases. Modulation of the immune system in patients with metabolic disorders can offer several potential benefits. While the salutary impact of plant-derived bioactive compounds on metabolic and immune functions is acknowledged, there is a paucity of comprehensive reviews on the multifaceted and synergistic mechanisms through which these effects are mediated. This review elucidates the therapeutic potential of phytochemical formulations in ameliorating metabolic disorders and delineates their mechanistic implications on relevant biomarkers and immune modulation. Our analysis reveals a predominance of plant species, including Boswellia serrata, Cinnamomum cassia, Citrus bergamia, Coffea arabica, Ficus racemosa, Momordica charantia, Morus Alba, and Trigonella foenum-graecum, that have undergone clinical evaluation and have been substantiated to confer both metabolic and immunological benefits. The phytoconstituents contained in these plants exert their effects through a range of mechanisms, such as improving glucose regulation, reducing inflammatory responses, and modulating immune system. As such, these findings hold considerable promise for clinical and therapeutic translation and necessitate further empirical validation through randomized controlled trials and mechanistic elucidations to affirm the safety and efficacy of herbal formulations.
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Affiliation(s)
- Raden Maya Febriyanti
- Department of Biology Pharmacy, Faculty of Pharmacy, Padjadjaran University, Sumedang, West Java, 46363, Indonesia
| | - Jutti Levita
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Padjadjaran University, Sumedang, West Java, 46363, Indonesia
| | - Ajeng Diantini
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Padjadjaran University, Sumedang, West Java, 46363, Indonesia
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Mendoza-Sarmiento D, Mistades EV, Hill AM. Effect of Pigmented Rice Consumption on Cardiometabolic Risk Factors: A Systematic Review of Randomized Controlled Trials. Curr Nutr Rep 2023; 12:797-812. [PMID: 37676476 PMCID: PMC10766681 DOI: 10.1007/s13668-023-00496-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/16/2023] [Indexed: 09/08/2023]
Abstract
PURPOSE OF REVIEW Dietary patterns that include polyphenols may help manage cardiometabolic risk factors. Pigmented rice contains phenolic acids and flavonoids that contribute to its antioxidant properties. This review examined the effect of polyphenol-containing pigmented rice on antioxidant status, lipid profile, glucose/insulin, blood pressure, and weight among adults. Four electronic databases including PubMed, ProQuest, EBSCOhost, and Google Scholar were systematically searched for relevant articles published in English since 2000, using PRISMA guidelines (PROSPERO registration: CRD42022358132). Two-staged screening resulted in the inclusion of seventeen (seven acute, ten chronic) randomized controlled trials. A random effects model was conducted on cardiometabolic outcomes reported in at least three studies. RECENT FINDINGS Acute intake increased plasma antioxidant activity and lowered postprandial glucose and insulin levels. Chronic consumption was associated with reductions in fasting glucose (WMD: -1.60 mg/dL; 95% CI:-3.05,-0.14, p = 0.03, k = 5, n = 349), weight (WMD: -0.23 kg, 95% CI: -0.44, -0.02, p = 0.03, k = 3, n = 182), and diastolic blood pressure (WMD: -1.39 mmHg, 95% CI: -2.21, -0.56, p = 0.001, k = 3, n = 185). No effect on total cholesterol, low-density lipoprotein, high-density lipoprotein, triglycerides, body mass index, and systolic blood pressure was found. The consumption of pigmented rice may improve cardiometabolic risk factors. However, the small number of studies and differences in study design, including participants' health status, form of rice utilized, and duration of intervention, support the need for more high-quality trials to further investigate these findings.
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Affiliation(s)
- Diane Mendoza-Sarmiento
- Graduate School, University of Santo Tomas, Manila, Philippines
- Nutrition and Dietetics Department, College of Education, University of Santo Tomas, Manila, Philippines
| | - Emmanuele V Mistades
- Nutrition and Dietetics Department, College of Education, University of Santo Tomas, Manila, Philippines
| | - Alison M Hill
- Clinical and Health Sciences, Alliance for Research in Exercise, Nutrition and Activity, University of South Australia, Adelaide, Australia.
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Liu Z, Liu X, Ma Z, Guan T. Phytosterols in rice bran and their health benefits. Front Nutr 2023; 10:1287405. [PMID: 37899831 PMCID: PMC10600523 DOI: 10.3389/fnut.2023.1287405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 10/02/2023] [Indexed: 10/31/2023] Open
Abstract
With the continuous technological innovation in the high-value utilization of rice bran byproducts, rice bran oil retains a higher concentration of beneficial components such as a well-balanced composition of fatty acids and abundant phytosterols. This makes it a highly nutritious and healthy vegetable oil. This review provides an overview of the advancements made in separating, purifying, and processing phytosterols in rice bran oil. The review also introduces techniques for assessing the stability of rice bran oil. Moreover, the review emphasizes the nutritional value of phytosterols found in rice bran oil, highlighting their various health benefits, including their anticancer, anti-inflammatory, anti-allergic, antibacterial, cholesterol-lowering, skin-protective, anti-obesity, anti-diabetic, neuroprotective, gastroprotective, and immune-enhancing effects. Attaining a comprehensive understanding of the research progress made in phytosterols derived from rice bran oil can offer valuable guidance for the efficient utilization of rice bran.
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Affiliation(s)
- Zhaoguo Liu
- Changchun Institute of Technology, Changchun, China
| | - Xiaoxiao Liu
- School of Food Science and Engineering, Yangzhou University, Yangzhou, China
| | - Zheng Ma
- Department of Thoracic Surgery, Qilu Hospital of Shandong University, Jinan, China
| | - Tianzhu Guan
- School of Food Science and Engineering, Yangzhou University, Yangzhou, China
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Zhu R, Xu H, Cai H, Wang S, Mao J, Zhang J, Xiong X, Wang X, Zhou W, Guo L. Effects of cereal bran consumption on cardiometabolic risk factors: A systematic review and meta-analysis. Nutr Metab Cardiovasc Dis 2023; 33:1849-1865. [PMID: 37482485 DOI: 10.1016/j.numecd.2023.04.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 04/25/2023] [Accepted: 04/27/2023] [Indexed: 07/25/2023]
Abstract
AIMS Cardiovascular disease is a prevalent worldwide disease, and cardiometabolic risk factors (CMRFs) include hyperlipidemia, hypertension, diabetes, and adiposity. Healthy diets are the critical factor in controlling these CMRFs risks, especially cereal bran which contains many beneficial substances. However, there are still contradictions in the indicators of improving CMRFs by bran from different grain sources or even the same grain source. Therefore, this study aimed to investigate the effects of cereal bran consumption on CMRFs. DATA SYNTHESIS Eligible randomized controlled studies were searched in PubMed, Embase, Scopus, the Cochrane Library and Web of Science until February 2023. The random-effects model was used to calculate overall effect sizes of weighted mean difference (WMD) and 95% confidence interval (CI). Finally, 22 studies were included in the present meta-analysis. Compared to the control, cereal bran consumption had no significant effect on high-density lipoprotein cholesterol, triglycerides, waist circumference, and body mass index, but could reduce systolic blood pressure (WMD: -1.59; 95% CI: -2.45 to -0.72), diastolic blood pressure (WMD: -1.96; 95% CI: -3.89 to -0.04), total cholesterol (WMD: -0.19; 95% CI: -0.34 to -0.04), low-density lipoprotein cholesterol (WMD: -0.21; 95% CI: -0.38 to -0.04), and fasting blood glucose (WMD: -0.13; 95% CI: -0.24 to -0.01). Additionally, oat bran can lower blood lipids in individuals with lipid diseases and blood pressure in obese or hypertensive patients. CONCLUSIONS Cereal bran could significantly reduce blood pressure, total cholesterol, low-density lipoprotein cholesterol, and fasting blood glucose in individuals with CMRFs, and oat bran had the most obvious effect.
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Affiliation(s)
- Ruiting Zhu
- School of Nursing, Jilin University, Changchun, Jilin, 130021, China
| | - Haiyan Xu
- School of Nursing, Jilin University, Changchun, Jilin, 130021, China
| | - Hongwei Cai
- Yantai Affiliated Hospital of Binzhou Medical University, 264100, China
| | - Saikun Wang
- School of Nursing, Jilin University, Changchun, Jilin, 130021, China
| | - Jing Mao
- School of Nursing, Jilin University, Changchun, Jilin, 130021, China
| | - Jingyi Zhang
- College of Animal Sciences, Jilin University, Changchun, Jilin, 130062, China
| | - Xuance Xiong
- Medical College, Beihua University, Jilin, Jilin, 132013, China
| | - Xingyu Wang
- School of Nursing, Jilin University, Changchun, Jilin, 130021, China
| | - Wei Zhou
- The First Hospital of Jilin University, Changchun, Jilin, 130021, China.
| | - Lirong Guo
- School of Nursing, Jilin University, Changchun, Jilin, 130021, China.
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Hariri Z, Afzalzade F, Sohrab G, Saadati S, Yari Z. The effects of rice bran supplementation for management of blood lipids: A GRADE-assessed systematic review, dose-response meta-analysis, and meta-regression of randomized controlled trials. Syst Rev 2023; 12:65. [PMID: 37046340 PMCID: PMC10091523 DOI: 10.1186/s13643-023-02228-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 03/30/2023] [Indexed: 04/14/2023] Open
Abstract
BACKGROUND We aimed to conduct a systematic review and meta-analysis of randomized controlled trials (RCTs) to investigate the effects of rice bran supplementation on serum lipid profile levels. METHODS We searched PubMed/Medline, Scopus, ISI Web of Science, and Google Scholar using related keywords. Published RCTs exploring the effects of rice bran consumption on lipid profile were searched up to June 2022. Evidence certainty was assessed on the basis of the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) approach. The data were pooled using a random-effects model and reported as weighted mean difference (WMD) and 95% confidence interval (CI) for each outcome. RESULTS Meta-analysis of eight RCTs (with 11 effect sizes) showed no significant effect of rice bran supplementation on serum levels of triglyceride (WMD: -11.38 mg/dl; 95% CI: -27.73, 4.96; P = 0.17), total cholesterol (WMD: -0.68 mg/dl; 95% CI: -7.25, 5.88; P = 0.834), low-density lipoprotein cholesterol (WMD: -1.68 mg/dl; 95% CI: -8.46, 5.09; P = 0.627) and high-density lipoprotein cholesterol (WMD: 0.16 mg/dl; 95% CI: -1.52, 1.85; P = 0.848) compared to control group. CONCLUSION Our meta-analysis suggests that rice bran supplementation has no significant effects on serum levels of lipid profile components. However, larger studies with longer durations and improved methodological quality are needed before firm conclusions can be reached.
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Affiliation(s)
- Zahra Hariri
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition Sciences and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Afzalzade
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Golbon Sohrab
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition Sciences and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saeede Saadati
- Department of Medicine, School of Clinical Sciences, Monash University, Melbourne, Australia
| | - Zahra Yari
- Department of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Sharake Qods, West Arghavan St. Farahzadi Blvd, Tehran, Iran.
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Sivamaruthi BS, Alagarsamy K, Thangaleela S, Bharathi M, Kesika P, Chaiyasut C. Composition, Microbiota, Mechanisms, and Anti-Obesity Properties of Rice Bran. Foods 2023; 12:foods12061300. [PMID: 36981226 PMCID: PMC10048552 DOI: 10.3390/foods12061300] [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: 03/01/2023] [Revised: 03/15/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
Rice is a major cereal crop and a staple food for nearly 50% of people worldwide. Rice bran (RB) is a nutrient-rich by-product of rice processing. RB is rich in carbohydrates, fibers, proteins, lipids, minerals, and several trace elements (phosphorus, calcium, magnesium, potassium, and manganese). The extraction process and storage have influenced RB extracts and RB oil's quality. The RB composition has also varied on the rice cultivars. The color of RB indicates the richness of the bioactive compounds, especially anthocyanins. γ-oryzanol, tocopherols, tocotrienols, and unsaturated fatty acids are major components of RB oil. It has been established that RB supplementation could improve the host's health status. Several preclinical and clinical studies have reported that RB has antioxidant, anticancer, anti-inflammatory, anticolitis, and antidiabetic properties. The beneficial biological properties of RB are partially attributed to its ability to alter the host microbiome and help to maintain and restore eubiosis. Non-communicable diseases (NCDs), including heart disease, diabetes, cancer, and lung disease, account for 74% of deaths worldwide. Obesity is a global health problem and is a major reason for the development of NCDs. The medical procedures for managing obesity are expensive and long-term health supplements are required to maintain a healthy weight. Thus, cost-effective natural adjuvant therapeutic strategy is crucial to treat and manage obesity. Several studies have revealed that RB could be a complementary pharmacological candidate to treat obesity. A comprehensive document with basic information and recent scientific results on the anti-obesity activity of RB and RB compounds is obligatory. Thus, the current manuscript was prepared to summarize the composition of RB and the influence of RB on the host microbiome, possible mechanisms, and preclinical and clinical studies on the anti-obesity properties of RB. This study suggested that the consumption of RB oil and dietary RB extracts might assist in managing obesity-associated health consequences. Further, extended clinical studies in several ethnic groups are required to develop dietary RB-based functional and nutritional supplements, which could serve as an adjuvant therapeutic strategy to treat obesity.
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Affiliation(s)
- Bhagavathi Sundaram Sivamaruthi
- Office of Research Administration, Chiang Mai University, Chiang Mai 50200, Thailand
- Innovation Center for Holistic Health, Nutraceuticals, and Cosmeceuticals, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Karthikeyan Alagarsamy
- Department of Microbiology (Aided), PSG College of Arts and Science, Avinashi Road, Civil Aerodrome Post, Coimbatore 641014, Tamil Nadu, India
| | - Subramanian Thangaleela
- Innovation Center for Holistic Health, Nutraceuticals, and Cosmeceuticals, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Muruganantham Bharathi
- Innovation Center for Holistic Health, Nutraceuticals, and Cosmeceuticals, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Periyanaina Kesika
- Office of Research Administration, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Chaiyavat Chaiyasut
- Innovation Center for Holistic Health, Nutraceuticals, and Cosmeceuticals, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
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Wongwaiwech D, Kamchonemenukool S, Ho CT, Li S, Majai N, Rungrat T, Sujipuli K, Pan MH, Weerawatanakorn M. Bioactives from Crude Rice Bran Oils Extracted Using Green Technology. Molecules 2023; 28:molecules28062457. [PMID: 36985429 PMCID: PMC10057060 DOI: 10.3390/molecules28062457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 02/21/2023] [Accepted: 02/24/2023] [Indexed: 03/11/2023] Open
Abstract
Crude rice bran oils from different rice cultivars and extraction methods bear different contents of nutraceuticals. The health benefits of lowering cholesterol activity of rice bran oil being confirmed by many reports are partly attributed to non-nutrient nutraceuticals, especially γ-oryzanol, phytosterols, and policosanols. As the world has been facing the global warming crisis, green extraction technology is gaining attention from many sectors. The current study aims to compare the nutraceutical composition with respect to γ-oryzanol, phytosterol, and policosanol content as well as the antioxidant properties of crude rice bran oils extracted from white and red rice bran using three green technologies, comparing with conventional hexane extraction. The data show that the traditional solvent extraction gave the highest oil yield percentage (26%), but it was not significantly different from subcritical liquefied dimethyl ether extraction (24.6%). Subcritical liquefied dimethyl ether extraction gave higher oil yield than supercritical CO2 extraction (15.5–16.2%). The crude rice bran oil extracted using subcritical liquefied dimethyl ether extraction produced the highest total phenolic contents and antioxidant activities. The highest γ-oryzanol content of the crude rice bran oil was found in oil extracted by conventional cold press (1370.43 mg/100 g). The γ-oryzanol content of the oil obtained via subcritical liquefied dimethyl ether extraction was high (1213.64 mg/100 g) compared with supercritical CO2 extraction. The red rice bran yielded the crude rice bran oil with the highest total phytosterol content compared with the white bran, and the oil from red rice bran extracted with subcritical liquefied dimethyl ether generated the highest total phytosterol content (1784.17 mg/100 g). The highest policosanol content (274.40 mg/100 g) was also found in oil obtained via subcritical liquefied dimethyl ether extraction.
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Affiliation(s)
- Donporn Wongwaiwech
- Department of Agro-Industry, Rajamangala University of Technology Lanna Tak, 41/1 Moo 7, Mai Ngam, Mueang, Tak 63000, Thailand
| | - Sudthida Kamchonemenukool
- Department of Agro-Industry, Naresuan University, 99 Moo 9, Tha Pho, Mueang, Phitsanulok 65000, Thailand
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, NJ 08901, USA
| | - Shiming Li
- Department of Food Science, College of Life Sciences, Huanggang Normal University, Huanggang 438000, China
| | - Nutthaporn Majai
- Department of Agro-Industry, Naresuan University, 99 Moo 9, Tha Pho, Mueang, Phitsanulok 65000, Thailand
| | - Tepsuda Rungrat
- Department of Agricultural Science, Faculty of Agriculture, Natural Resources and Environment, Naresuan University, 99 Moo 9, Tha Pho, Mueang, Phitsanulok 65000, Thailand
| | - Kawee Sujipuli
- Department of Agricultural Science, Faculty of Agriculture, Natural Resources and Environment, Naresuan University, 99 Moo 9, Tha Pho, Mueang, Phitsanulok 65000, Thailand
| | - Min-Hsiung Pan
- Institute of Food Science and Technology, National Taiwan University, No.1, Section 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Monthana Weerawatanakorn
- Department of Agro-Industry, Naresuan University, 99 Moo 9, Tha Pho, Mueang, Phitsanulok 65000, Thailand
- Correspondence: ; Tel.: +66-0629514194
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Compound of Cynanchum wilfordii and Humulus lupulus L. Ameliorates Menopausal Symptoms in Ovariectomized Mice. Reprod Sci 2022; 30:1625-1636. [PMID: 36333646 DOI: 10.1007/s43032-022-01117-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022]
Abstract
Cynanchum wilfordii and Humulus lupulus L. have been used for their various pharmacological properties in South Korea as a traditional medicine or health functional food, respectively, and their intake may relieve menopausal symptoms. The purpose of current study was to determine the effect of compound of Cynanchum wilfordii and Humulus lupulus L. (CWHL) in menopausal symptoms of ovariectomized (OVX) mice. OVX mice received CWHL or caudatin (an active ingredient of CWHL) once daily for 7 weeks. Values for hypothalamic serotonin (5-HT), dopamine, norepinephrine, estrogen receptor (ER)-β, 5-HT1A, and 5-HT2A were significantly enhanced, while value for hypothalamic monoamine oxidase A was reduced in CWHL and caudatin groups compared with the OVX group. CWHL and caudatin significantly reduced tail skin temperature and rectal temperature of OVX mice through partial recovering of the levels of serum estrogen, nitric oxide, follicle-stimulating hormone, luteinizing hormone, and receptor-activator of the NF-κB ligand (RANKL). Moreover, CWHL and caudatin improved bone mineral density via decreasing levels of serum RANKL, tartrate-resistant acid phosphatase, and collagen type 1 cross-linked N-telopeptide and improving levels of serum alkaline phosphatase, osteoprotegerin, and osteocalcin compared with the OVX group without adverse effects such as dyslipidemia. CWHL increased uterine ER-β levels but did not change uterus and vaginal weights. Taken together, the results indicate that CWHL may relieve menopausal symptoms by controlling depression-, hot flashes-, and osteoporosis-associated biomarkers. Therefore, we propose that CWHL might be a safe and potential candidate for management of menopause as a health functional food.
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Andriani R, Subroto T, Ishmayana S, Kurnia D. Enhancement Methods of Antioxidant Capacity in Rice Bran: A Review. Foods 2022; 11:foods11192994. [PMID: 36230070 PMCID: PMC9564381 DOI: 10.3390/foods11192994] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 09/19/2022] [Accepted: 09/20/2022] [Indexed: 11/30/2022] Open
Abstract
Rice (Oryza sativa L.) is a primary food that is widely consumed throughout the world, especially in Asian countries. The two main subspecies of rice are japonica and indica which are different in physical characteristics. In general, both indica and japonica rice consist of three types of grain colors, namely white, red, and black. Furthermore, rice and rice by-products contain secondary metabolites such as phenolic compounds, flavonoids, and tocopherols that have bioactivities such as antioxidants, antimicrobial, cancer chemopreventive, antidiabetic, and hypolipidemic agents. The existence of health benefits in rice bran, especially as antioxidants, gives rice bran the opportunity to be used as a functional food. Most of the bioactive compounds in plants are found in bound form with cell wall components such as cellulose and lignin. The process of releasing bonds between bioactive components and cell wall components in rice bran can increase the antioxidant capacity. Fermentation and treatment with enzymes were able to increase the total phenolic content, total flavonoids, tocotrienols, tocopherols, and γ-oryzanol in rice bran.
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Saphyakhajorn W, Sirirat R, Sapwarobol S. Effect of defatted rice bran supplementation on metabolic parameters and inflammatory status in overweight/obese adults with hypercholesterolemia: a randomized, placebo-controlled intervention. BMC Nutr 2022; 8:94. [PMID: 36045411 PMCID: PMC9434873 DOI: 10.1186/s40795-022-00586-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 08/15/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Defatted rice bran (DRB) is a byproduct of rice bran oil production rich in fiber, protein, and antioxidant compounds that may confer beneficial effects on metabolic profiles in humans. The current study aimed to investigate the effects of DRB supplementation on anthropometric and blood biochemical indices, dietary intake, and inflammatory status in overweight/obese subjects with hypercholesterolemia. METHODS In a 12-week-randomized placebo-controlled trial, 61 overweight/obese participants with a total cholesterol level > 200 mg/dL were randomly assigned either to 30 g/d DRB (n = 30) or to 10 g/d maltodextrin (n = 31). RESULTS DRB intervention significantly reduced systolic and diastolic blood pressure by 4.27 and 4.50%, respectively (126.20 ± 13.63 to 120.60 ± 13.72 mmHg, p = 0.0003 and 80.87 ± 7.38 to 77.17 ± 9.83 mmHg, p = 0.0035). HbA1c also decreased significantly by 3.59% (5.89% ± 0.76% to 5.66% ± 0.62%, p = 0.0001) after DRB supplementation. Total cholesterol, triglyceride, and low-density lipoprotein cholesterol levels also decreased insignificantly by 3.12, 1.32, and 1.53%, respectively, after DRB supplementation. Insignificant differences in fasting blood glucose, insulin, homeostatic model assessment of insulin resistance, quantitative insulin sensitivity check index, hs-CRP and homocysteine levels were also observed after DRB intervention. Reduction in caloric and fat intake were reported in DRB groups. CONCLUSIONS DRB supplementation improved blood pressure and HbA1c levels. It also lowered blood cholesterol, albeit insignificantly. Caloric and fat intake were also significantly lower after DRB supplementation. Further study is needed to evaluate the mechanisms by which DRB improves these metabolic indices. TRIAL REGISTRATION Thai Clinical Trial Registration ( https://www.thaiclinicaltrials.org/. ) Thai Clinical Trial Registration number: TCTR20191020003. Registered 20 October 2019.
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Affiliation(s)
- Weeraya Saphyakhajorn
- Department of Nutrition and Dietetics, Graduate Program in Food and Nutrition, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Rawiwan Sirirat
- Center for Nutrition, Healthy Lifestyle, and Disease Prevention, School of Public Health, Loma Linda University, Loma Linda, California, USA
| | - Suwimol Sapwarobol
- The Medical Food Research Group, Department of Nutrition and Dietetics, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, Thailand.
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Tochitani S, Maehara Y, Kawase T, Tsukahara T, Shimizu R, Watanabe T, Maehara K, Asaoka K, Matsuzaki H. Fermented rice bran supplementation ameliorates obesity via gut microbiota and metabolism modification in female mice. J Clin Biochem Nutr 2022; 70:160-174. [PMID: 35400825 PMCID: PMC8921717 DOI: 10.3164/jcbn.21-96] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 08/21/2021] [Indexed: 12/12/2022] Open
Abstract
We investigated the effects of fermented rice bran (FRB) administration in two groups of C57BL/6J mice. The first group was fed with a high-fat diet, and the second group was fed with a high-fat diet supplemented with the FRB for 8 weeks. FRB supplementation suppressed the high-fat-induced weight gain and considerable alterations in the intestinal microbiota profile in the second group. Among 27 bacterial genera detected in the FRB, only Enterococcus, Lactobacillus, Bacteroides, Prevotella, and the unclassified family Peptostreptococcaceae were detected in mice feces. Their abundances were not particularly increased by FRB supplementation. The abundances of Enterococcus and the unclassified family Peptostreptococcaceae were even suppressed in the second group, suggesting that FRB supplementation didn’t cause an addition of beneficial microbiome but inhibit the proliferation of specific bacteria. Fecal succinic acid concentration was significantly decreased in the second group and highly correlated with the relative abundances of Turicibacter, Enterococcus, and the unclassified family Peptostreptococcaceae. A significant increase in fumaric acid and a decrease in xylitol, sorbitol, uracil, glutamic acid, and malic acid levels were observed in the peripheral blood of the second group. FRB supplementation counteracted the high-fat-induced obesity in mice by modulating the gut microbiota and the host metabolism.
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Affiliation(s)
- Shiro Tochitani
- Department of Radiological Technology, Faculty of Health Science, Suzuka University of Medical Science
| | | | | | | | | | | | | | | | - Hideo Matsuzaki
- Research Center for Child Mental Development, University of Fukui
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12
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Sapwarobol S, Saphyakhajorn W, Astina J. Biological Functions and Activities of Rice Bran as a Functional Ingredient: A Review. Nutr Metab Insights 2021; 14:11786388211058559. [PMID: 34898989 PMCID: PMC8655829 DOI: 10.1177/11786388211058559] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 10/20/2021] [Indexed: 11/16/2022] Open
Abstract
Rice bran (RB) is a nutrient-rich by-product of the rice milling process. It consists of pericarp, seed coat, nucellus, and aleurone layer. RB is a rich source of a protein, fat, dietary fibers, vitamins, minerals, and phytochemicals (mainly oryzanols and tocopherols), and is currently mostly used as animal feed. Various studies have revealed the beneficial health effects of RB, which result from its functional components including dietary fiber, rice bran protein, and gamma-oryzanol. The health effects of RB including antidiabetic, lipid-lowering, hypotensive, antioxidant, and anti-inflammatory effects, while its consumption also improves bowel function. These health benefits have drawn increasing attention to RB in food applications and as a nutraceutical product to mitigate metabolic risk factors in humans. This review therefore focuses on RB and its health benefits.
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Affiliation(s)
- Suwimol Sapwarobol
- The Medical Food Research Group, Department of Nutrition and Dietetics, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Weeraya Saphyakhajorn
- Graduate Program in Food and Nutrition, Department of Nutrition and Dietetics, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Junaida Astina
- Graduate Program in Food and Nutrition, Department of Nutrition and Dietetics, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, Thailand
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13
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Nattagh-Eshtivani E, Barghchi H, Pahlavani N, Barati M, Amiri Y, Fadel A, Khosravi M, Talebi S, Arzhang P, Ziaei R, Ghavami A. Biological and pharmacological effects and nutritional impact of phytosterols: A comprehensive review. Phytother Res 2021; 36:299-322. [PMID: 34729825 DOI: 10.1002/ptr.7312] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 09/01/2021] [Accepted: 09/30/2021] [Indexed: 12/20/2022]
Abstract
Phytosterols (PSs), classified into plant sterols and stanols, are bioactive compounds found in foods of plant origin. PSs have been proposed to exert a wide number of pharmacological properties, including the potential to reduce total and low-density lipoprotein (LDL) cholesterol levels and thereby decreasing the risk of cardiovascular diseases. Other health-promoting effects of PSs include anti-obesity, anti-diabetic, anti-microbial, anti-inflammatory, and immunomodulatory effects. Also, anticancer effects have been strongly suggested, as phytosterol-rich diets may reduce the risk of cancer by 20%. The aim of this review is to provide a general overview of the available evidence regarding the beneficial physiological and pharmacological activities of PSs, with special emphasis on their therapeutic potential for human health and safety. Also, we will explore the factors that influence the physiologic response to PSs.
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Affiliation(s)
- Elyas Nattagh-Eshtivani
- Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hanieh Barghchi
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Naseh Pahlavani
- Nutrition and Biochemistry Department, School of Medicine, Social Development and Health Promotion Research Center, Gonabad University of Medical Sciences, Gonabad, Iran.,Department of Clinical Biochemistry and Nutrition, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Mehdi Barati
- Department of Immunology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Yasaman Amiri
- Medical School, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Abdulmannan Fadel
- School of Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
| | - Maryam Khosravi
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Saeedeh Talebi
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Pishva Arzhang
- Department of Biochemistry and Diet Therapy, Faculty of Nutritional Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Rahele Ziaei
- Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Abed Ghavami
- Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
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14
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Tiozon RJN, Sartagoda KJD, Fernie AR, Sreenivasulu N. The nutritional profile and human health benefit of pigmented rice and the impact of post-harvest processes and product development on the nutritional components: A review. Crit Rev Food Sci Nutr 2021:1-28. [PMID: 34709089 DOI: 10.1080/10408398.2021.1995697] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Pigmented rice has attracted considerable attention due to its nutritional value, which is in large conferred by its abundant content of phenolic compounds, considerable micronutrient concentrations, as well as its higher resistant starch and thereby slower digestibility properties. A wide range of phenolic compounds identified in pigmented rice exhibit biological activities such as antioxidant activity, anti-inflammatory, anticancer, and antidiabetic properties. Post-harvest processes significantly reduce the levels of these phytochemicals, but recent developments in processing methods have allowed greater retention of their contents. Pigmented rice has also been converted to different products for food preservation and to derive functional foods. Profiling a large set of pigmented rice cultivars will thus not only provide new insights into the phytochemical diversity of rice and the genes underlying the vast array of secondary metabolites present in this species but also provide information concerning their nutritional benefits, which will be instrumental in breeding healthier rice. The present review mainly focuses on the nutritional composition of pigmented rice and how it can impact human health alongside the effects of post-harvest processes and product development methods to retain the ambient level of phytochemicals in the final processed form in which it is consumed.
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Affiliation(s)
- Rhowell Jr N Tiozon
- Consumer-driven Grain Quality and Nutrition Center, Strategic Innovation Platform, International Rice Research Institute, Los Baños, Philippines.,Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | - Kristel June D Sartagoda
- Consumer-driven Grain Quality and Nutrition Center, Strategic Innovation Platform, International Rice Research Institute, Los Baños, Philippines
| | - Alisdair R Fernie
- Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | - Nese Sreenivasulu
- Consumer-driven Grain Quality and Nutrition Center, Strategic Innovation Platform, International Rice Research Institute, Los Baños, Philippines
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15
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Chávez-Castillo M, Ortega Á, Duran P, Pirela D, Marquina M, Cano C, Salazar J, Gonzalez MC, Bermúdez V, Rojas-Quintero J, Velasco M. Phytotherapy for Cardiovascular Disease: A Bench-to-Bedside Approach. Curr Pharm Des 2021; 26:4410-4429. [PMID: 32310044 DOI: 10.2174/1381612826666200420160422] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 04/13/2020] [Indexed: 11/22/2022]
Abstract
At present, cardiovascular disease (CVD) remains the leading cause of morbidity and mortality worldwide, and global trends suggest that this panorama will persist or worsen in the near future. Thus, optimization of treatment strategies and the introduction of novel therapeutic alternatives for CVD represent key objectives in contemporary biomedical research. In recent years, phytotherapy-defined as the therapeutic use of whole or minimally modified plant components-has ignited large scientific interest, with a resurgence of abundant investigation on a wide array of medicinal herbs (MH) for CVD and other conditions. Numerous MH have been observed to intervene in the pathophysiology of CVD via a myriad of molecular mechanisms, including antiinflammatory, anti-oxidant, and other beneficial properties, which translate into the amelioration of three essential aspects of the pathogenesis of CVD: Dyslipidemia, atherosclerosis, and hypertension. Although the preclinical data in this scenario is very rich, the true clinical impact of MH and their purported mechanisms of action is less clear, as large-scale robust research in this regard is in relatively early stages and faces important methodological challenges. This review offers a comprehensive look at the most prominent preclinical and clinical evidence currently available concerning the use of MH in the treatment of CVD from a bench-to-bedside approach.
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Affiliation(s)
- Mervin Chávez-Castillo
- Psychiatric Hospital of Maracaibo, Maracaibo, Venezuela,Endocrine and Metabolic Diseases Research Center, School of Medicine, University of Zulia, Maracaibo, Venezuela
| | - Ángel Ortega
- Endocrine and Metabolic Diseases Research Center, School of Medicine, University of Zulia, Maracaibo, Venezuela
| | - Pablo Duran
- Endocrine and Metabolic Diseases Research Center, School of Medicine, University of Zulia, Maracaibo, Venezuela
| | - Daniela Pirela
- Endocrine and Metabolic Diseases Research Center, School of Medicine, University of Zulia, Maracaibo, Venezuela
| | - María Marquina
- Endocrine and Metabolic Diseases Research Center, School of Medicine, University of Zulia, Maracaibo, Venezuela
| | - Climaco Cano
- Endocrine and Metabolic Diseases Research Center, School of Medicine, University of Zulia, Maracaibo, Venezuela
| | - Juan Salazar
- Endocrine and Metabolic Diseases Research Center, School of Medicine, University of Zulia, Maracaibo, Venezuela
| | | | - Valmore Bermúdez
- Universidad Simón Bolívar, Facultad de Ciencias de la Salud, Barranquilla, Colombia
| | - Joselyn Rojas-Quintero
- Pulmonary and Critical Care Medicine Department, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Manuel Velasco
- Clinical Pharmacology Unit, School of Medicine José María Vargas, Central University of Venezuela, Caracas,
Venezuela
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16
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Salehi-Sahlabadi A, Varkaneh HK, Shahdadian F, Ghaedi E, Nouri M, Singh A, Farhadnejad H, Găman MA, Hekmatdoost A, Mirmiran P. Effects of Phytosterols supplementation on blood glucose, glycosylated hemoglobin (HbA1c) and insulin levels in humans: a systematic review and meta-analysis of randomized controlled trials. J Diabetes Metab Disord 2020; 19:625-632. [PMID: 32550215 DOI: 10.1007/s40200-020-00526-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 04/03/2020] [Indexed: 02/06/2023]
Abstract
Background In the literature, there are still controversies regarding the effect of phytosterol(PS) supplementation on fasting blood sugar (FBS), insulin levels and glycosylated hemoglobin (HbA1c) in humans. We aimed to assess the impact of PS supplementation on FBS, HbA1c and insulin levels by conducting a systematic review and meta-analysis of the available randomized controlled trials (RCTs). Methods A comprehensive search was conducted to identify all RCTs published up to May 2019 in the following databases: PubMed-MEDLINE, Web of Science, Cochrane Library and Scopus. The mean difference with 95% confidence intervals (CIs) was pooled using a random-effects model (DerSimonian-Laird method). Results Twenty-six arms from 20 RCTs were included in the present meta-analysis. Our findings show that PS supplementation decreases insulin levels (mean difference [MD]: -6.426 μU/ml, 95% CI: -7.187, -5.665, P- value = 0.000). However, PS supplementation did not have significant effects on FBS and HbA1c levels. Following PS supplementation, significant changes in FBS (mean difference [MD]: -1.942 mg/dl, 95% CI: -3.637, -0.246, P- value = 0.025) and HbA1c (mean difference [MD]: -0.059%, 95% CI: -0.114, -0.004, P- value = 0.035) based on PS dosage (mg/d) were recorded. Conclusions In patients with a baseline BMI <25 kg/m2, PS consumption significantly increased FBS levels. Patients who consumed 1-2 g/day of PS had a lower FBS and lower HbA1c levels.
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Affiliation(s)
- Ammar Salehi-Sahlabadi
- Student Research Committee, Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, 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
| | - Farnaz Shahdadian
- Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran, Isfahan, Iran
| | - Ehsan Ghaedi
- Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Mehran Nouri
- Students' Research Committee, School of Nutrition and Food Science, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ambrish Singh
- Menzies Institute for Medical Research, University of Tasmania, 17 Liverpool St, Hobart, Tasmania TAS 7000 Australia
| | - Hossein Farhadnejad
- Student Research Committee, Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, Shahid Beheshti 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
| | - Parvin Mirmiran
- Nutrition and Endocrine Research Center, Research Institute for Endocrine Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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17
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Sen S, Chakraborty R, Kalita P. Rice - not just a staple food: A comprehensive review on its phytochemicals and therapeutic potential. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.01.022] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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18
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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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19
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Payab M, Hasani-Ranjbar S, Shahbal N, Qorbani M, Aletaha A, Haghi-Aminjan H, Soltani A, Khatami F, Nikfar S, Hassani S, Abdollahi M, Larijani B. Effect of the herbal medicines in obesity and metabolic syndrome: A systematic review and meta-analysis of clinical trials. Phytother Res 2019; 34:526-545. [PMID: 31793087 DOI: 10.1002/ptr.6547] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 09/18/2019] [Accepted: 10/24/2019] [Indexed: 12/12/2022]
Abstract
Obesity is a medical situation in which excess body fat has gathered because of imbalance between energy intake and energy expenditure. In spite of the fact that the variety of studies are available for obesity treatment and management, its "globesity" still remains a big challenge all over the world. The current systematic review and meta-analysis aimed to evaluate the efficacy, safety, and mechanisms of effective herbal medicines in the management and treatment of obesity and metabolic syndrome in human. We systematically searched all relevant clinical trials via Web of Science, Scopus, PubMed, and the Cochrane database to assess the effects of raw or refined products derived from plants or parts of plants on obesity and metabolic syndrome in overweight and obesity adult subjects. All studies conducted by the end of May 2019 were considered in the systematic review. Data were extracted independently by two experts. The quality assessment was assessed using Consolidated Standards of Reporting Trials checklist. The main outcomes were anthropometric indices and metabolic syndrome components. Pooled effect of herbal medicines on obesity and metabolic syndrome were presented as standardized mean difference (SMD) and 95% confidence interval (CI). A total of 279 relevant clinical trials were included. Herbals containing green tea, Phaseolus vulgaris, Garcinia cambogia, Nigella sativa, puerh tea, Irvingia gabonensis, and Caralluma fimbriata and their active ingredients were found to be effective in the management of obesity and metabolic syndrome. In addition, C. fimbriata, flaxseed, spinach, and fenugreek were able to reduce appetite. Meta-analysis showed that intake of green tea resulted in a significant improvement in weight ([SMD]: -0.75 [-1.18, -0.319]), body mass index ([SMD]: -1.2 [-1.82, -0.57]), waist circumference ([SMD]: -1.71 [-2.66, -0.77]), hip circumference ([SMD]: -0.42 [-1.02, -0.19]), and total cholesterol, ([SMD]: -0.43 [-0.77, -0.09]). In addition, the intake of P. vulgaris and N. sativa resulted in a significant improvement in weight ([SMD]: -0.88, 95 % CI: [-1.13, -0.63]) and triglyceride ([SMD]: -1.67, 95 % CI: [-2.54, -0.79]), respectively. High quality trials are still needed to firmly establish the clinical efficacy of the plants in obesity and metabolic syndrome.
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Affiliation(s)
- Moloud Payab
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Shirin Hasani-Ranjbar
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Nazila Shahbal
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mostafa Qorbani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.,Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Azadeh Aletaha
- Evidence Based Medicine Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of medical Sciences, Tehran, Iran
| | - Hamed Haghi-Aminjan
- Pharmaceutical Science Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Akbar Soltani
- Evidence Based Medicine Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of medical Sciences, Tehran, Iran
| | - Fatemeh Khatami
- Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Shekoufeh Nikfar
- Department of Pharmacoeconomics and Pharmaceutical Administration, Faculty of Pharmacy, and Evidence-based Evaluation of Cost-Effectiveness and Clinical Outcomes Group, Pharmaceutical Science Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Shokoufeh Hassani
- Toxicology and Diseases Group (TDG), Pharmaceutical Science Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), and Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Abdollahi
- Toxicology and Diseases Group (TDG), Pharmaceutical Science Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), and Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
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20
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Rice Bran Supplement Containing A Functional Substance, the Novel Peptide Leu-Arg-Ala, has Anti-Hypertensive Effects: A Double-Blind, Randomized, Placebo-Controlled Study. Nutrients 2019; 11:nu11040726. [PMID: 30925824 PMCID: PMC6521331 DOI: 10.3390/nu11040726] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 03/26/2019] [Indexed: 02/07/2023] Open
Abstract
The anti-hypertensive effect of processed rice bran (PRB) was recently reported, for which the novel peptide Leu-Arg-Ala (LRA) was identified as the functional substance. The purpose of this study was to assess the anti-hypertensive effects of a rice bran supplement containing PRB in individuals with high-normal blood pressure (systolic blood pressure (SBP): 130–139 mmHg and/or diastolic blood pressure (DBP): 85–89 mmHg) or grade 1 hypertension (SBP: 140–159 mmHg and/or DBP: 90–99 mmHg). One hundred individuals with high-normal blood pressure or grade 1 hypertension were recruited to participate in this double-blind, randomized, placebo-controlled study. Participants were randomly allocated to the placebo group (n = 50) or the test group (n = 50). Each group took four test tablets (43 μg LRA/day) or four placebo tablets daily. The decrease in blood pressure in the test group compared with the placebo group was the primary outcome. Adverse events were recorded and hematological/urinary parameters measured to determine the safety of the supplement, which was the secondary outcome. In total, 87 participants completed the study. The SBP of the test group at 12 weeks was significantly lower than that of the placebo group (p = 0.0497). No serious adverse events were observed. Daily consumption of a rice bran supplement containing PRB can safely improve mildly elevated blood pressure.
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21
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Ghaedi E, Varkaneh HK, Rahmani J, Mousavi SM, Mohammadi H, Fatahi S, Pantovic A, Darooghegi Mofrad M, Zhang Y. Possible anti‐obesity effects of phytosterols and phytostanols supplementation in humans: A systematic review and dose–response meta‐analysis of randomized controlled trials. Phytother Res 2019; 33:1246-1257. [DOI: 10.1002/ptr.6319] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 12/19/2018] [Accepted: 01/28/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Ehsan Ghaedi
- Department of Community Nutrition, School of Nutritional Sciences and DieteticsTehran University of Medical Sciences Tehran Iran
- Students' Scientific Research Center (SSRC)Tehran University of Medical Sciences (TUMS) Tehran Iran
| | - Hamed Kord Varkaneh
- Student Research Committee, Department Clinical Nutrition and DieteticsFaculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Jamal Rahmani
- Student Research Committee, Department Clinical Nutrition and DieteticsFaculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Seyed Mohammad Mousavi
- Department of Community Nutrition, School of Nutritional Sciences and DieteticsTehran University of Medical Sciences Tehran Iran
| | - Hamed Mohammadi
- Food Security Research Center and Department of Community Nutrition, School of Nutrition and Food ScienceIsfahan University of Medical Sciences Isfahan Iran
- Students' Research CommitteeIsfahan University of Medical Sciences Isfahan Iran
| | - Somaye Fatahi
- Department of Nutrition, School of Public HealthIran University of Medical Sciences Tehran Iran
| | - Ana Pantovic
- Institute for Medical Research, Centre of Research Excellence in Nutrition and MetabolismUniversity of Belgrade Serbia
| | - Manije Darooghegi Mofrad
- Department of Community Nutrition, School of Nutritional Sciences and DieteticsTehran University of Medical Sciences Tehran Iran
| | - Yong Zhang
- Department of Nutrition and Food Hygiene, School of Public Health and Health ManagementChongqing Medical University Chongqing China
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22
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Callcott ET, Thompson K, Oli P, Blanchard CL, Santhakumar AB. Coloured rice-derived polyphenols reduce lipid peroxidation and pro-inflammatory cytokines ex vivo. Food Funct 2019; 9:5169-5175. [PMID: 30255188 DOI: 10.1039/c8fo01531g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rice-derived polyphenols have been demonstrated to alleviate obesity-related oxidative stress and inflammation. The aim of the study was to investigate if coloured rice polyphenol extracts (PE) reduce malondialdehyde, interleukin-6 and tumour necrosis factor-α (TNF-α) levels in obese individuals ex vivo. Malondialdehyde and pro-inflammatory cytokines were quantified using high-performance liquid chromatography and flow cytometry respectively. Fasting blood samples were treated with PE from three coloured rice varieties (purple, red and brown rice) at varying concentrations (10, 20, 50, 100, 200 and 500 μg mL-1). PE treatment demonstrated a dose-dependent reduction in malondialdehyde and TNF-α levels. Purple PE reduced plasma malondialdehyde concentration by 59% compared to red (21%) and brown (25.5%) rice PE. Brown rice PE at 50 μg mL-1 reduced TNF-α levels by 98% compared to red (80%) and purple rice PE (74%). Rice PE did not modulate plasma interleukin-6 concentrations. Coloured rice may be of therapeutic benefit as a potential functional food alternative in targeting specific pathways associated with obesity.
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Affiliation(s)
- Esther T Callcott
- Australian Research Council (ARC) Industrial Transformation Training Centre for Functional Grains, Graham Centre for Agricultural Innovation, Charles Sturt University, Wagga Wagga, New South Wales 2650, Australia.
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23
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Karimlar S, Naderi A, Mohammadi F, Moslehishad M, Delrish E, Aghajanpour L, khoshzaban A, Lashay A. Hypoglycemic and Hypolipidemic Effects of Myrtus communis, Trachyspermum copticum and Ferula gummosa Essential Oils on Streptozotocin Induced Diabetic Rats. NUTRITION AND FOOD SCIENCES RESEARCH 2019. [DOI: 10.29252/nfsr.6.1.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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24
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Therapeutic potential of rice-derived polyphenols on obesity-related oxidative stress and inflammation. J Appl Biomed 2018. [DOI: 10.1016/j.jab.2018.03.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Park JY, Yun H, Jo J, Baek JY, Lee SC, Choi YJ, Shim JS, Choi HJ, Lee S, Kang KS. Beneficial effects of Cirsium japonicum var. maackii on menopausal symptoms in ovariectomized rats. Food Funct 2018; 9:2480-2489. [PMID: 29632938 DOI: 10.1039/c7fo01258f] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In women, menopause refers to a series of physiological and mental symptoms of distress that result from a decrease in 17β-estradiol. In addition to the loss of fertility, the symptoms include facial flushing, depression, osteoporosis, sexual dysfunction, and genitourinary atrophy. Cirsium japonicum var. maackii is a perennial herbaceous species found in the mountains and fields of Korea, China, and Japan. The medicinal uses of C. japonicum include antioxidant, antidiabetic, antitumor, antifungal, and anti-inflammatory activities. We investigated the effect of C. japonicum extract in a rat model of menopause that exhibited rapid estrogen decline induced by ovariectomy (OVX rats). The rats were treated with C. japonicum extract for 10 weeks and the following parameters were measured: food intake, feed efficiency, body weight, total cholesterol, triglyceride, LDL-cholesterol, HDL-cholesterol, liver weight, 17β-estradiol, uterus weight, AST, ALT, bone mineral density (BMD), bone alkaline phosphatase, calcitonin, and osteocalcin. In OVX rats, the administration of 50 and 100 mg kg-1C. japonicum extract significantly decreased body weight, total cholesterol, triglyceride, HDL-cholesterol, and LDL-cholesterol and significantly increased 17β-estradiol and BMD. During the light/dark box test, the C. japonicum treatment group (100 mg kg-1) spent more time in the light chamber than in the dark area, which was reflective of their diurnal nature. Using a molecular docking simulation, we predicted the plausible binding mode of the active compounds of C. japonicum with the ligand binding domain of estrogen receptor (ER)-α and ER-β. These results showed that C. japonicum extract can treat the symptoms before and after the menopause.
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Affiliation(s)
- Jun Yeon Park
- College of Korean Medicine, Gachon University, Seongnam 13120, Republic of Korea.
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Enhancement of cognitive functions by rice bran extract in a neuroinflammatory mouse model via regulation of PPARγ. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.07.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Perez-Ternero C, Alvarez de Sotomayor M, Herrera MD. Contribution of ferulic acid, γ-oryzanol and tocotrienols to the cardiometabolic protective effects of rice bran. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.02.014] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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Nam SJ, Chung SI, Ryu SN, Kang MY. Effect of Bran Extract from Pigmented Rice Superjami on the Lipid and Glucose Metabolisms in a Postmenopause-Like Model of Ovariectomized Rats. Cereal Chem 2017. [DOI: 10.1094/cchem-04-16-0112-r] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Su Jin Nam
- Department of Food Science and Nutrition, Brain Korea 21 Plus, Kyungpook National University, Daegu, 41566, South Korea
| | - Soo Im Chung
- Department of Food Science and Nutrition, Brain Korea 21 Plus, Kyungpook National University, Daegu, 41566, South Korea
| | - Su Noh Ryu
- Department of Agricultural Science, Korea National Open University, Seoul 03087, South Korea
| | - Mi Young Kang
- Department of Food Science and Nutrition, Brain Korea 21 Plus, Kyungpook National University, Daegu, 41566, South Korea
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Rocha VZ, Ras RT, Gagliardi AC, Mangili LC, Trautwein EA, Santos RD. Effects of phytosterols on markers of inflammation: A systematic review and meta-analysis. Atherosclerosis 2016; 248:76-83. [DOI: 10.1016/j.atherosclerosis.2016.01.035] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 12/21/2015] [Accepted: 01/21/2016] [Indexed: 12/29/2022]
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Lo LMP, Kang MY, Yi SJ, Chung SI. Dietary supplementation of germinated pigmented rice (Oryza sativa L.) lowers dyslipidemia risk in ovariectomized Sprague-Dawley rats. Food Nutr Res 2016; 60:30092. [PMID: 27032671 PMCID: PMC4816810 DOI: 10.3402/fnr.v60.30092] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 02/17/2016] [Accepted: 02/17/2016] [Indexed: 01/07/2023] Open
Abstract
Background In the recent years, cases of elderly women suffering from metabolic diseases such as dyslipidemias brought about by hormonal imbalance after menopause are continuously increasing. In this regard, a continuous and escalating demand to develop a more functional and highly nutritional food product as an adjunct supplement that can help alleviate these diseases is still being sought. Objective This study investigated the effects of germinated blackish-purple rice cultivars Keunnunjami, Superjami, and reddish-brown cultivar Superhongmi in the lipid metabolism of ovariectomized Sprague–Dawley rats. Method The animals were randomly divided into nine groups (n=5) and were supplemented with either non-germinated or germinated rice for 9 weeks. Then the plasma, liver, and fat samples were collected for the lipid metabolism effects analyses. Results Animals fed with germinated rice cultivars had improved lipid profile levels relative to the groups supplemented with non-germinated rice cultivars. The germinated rice groups, Keununjami and Superjami in particular, showed a low total cholesterol levels, high levels of high-density lipoproteins-cholesterol, high fecal lipid output, low hepatic lipid values, and low hepatic adipocyte accumulation. There was also an increase in the rate of lipolysis and decrease in lipogenesis based on the lipid-regulating enzyme activity profiles obtained for the groups that fed on germinated rice. Also, results revealed that pigmented rice cultivars had superior effects in improving the lipid metabolism relative to the non-pigmented normal brown rice variety. Conclusion Based on the results, this study suggests that germinated pigmented rice consumption can confer better lipid metabolism than ordinary white rice and constitutes as an effective functional food in alleviating the risk of having dyslipidemias like those suffering from menopausal co-morbidities.
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Affiliation(s)
- Lara Marie Pangan Lo
- Department of Food Science and Nutrition, Brain Korea 21 Plus, Kyungpook National University, Daegu, Republic of Korea
| | - Mi Young Kang
- Department of Food Science and Nutrition, Brain Korea 21 Plus, Kyungpook National University, Daegu, Republic of Korea
| | - Seong Joon Yi
- College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Soo Im Chung
- Department of Food Science and Nutrition, Brain Korea 21 Plus, Kyungpook National University, Daegu, Republic of Korea;
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Patel S. Cereal bran fortified-functional foods for obesity and diabetes management: Triumphs, hurdles and possibilities. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.02.010] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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