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Neufeld LM, Ho E, Obeid R, Tzoulis C, Green M, Huber LG, Stout M, Griffiths JC. Advancing nutrition science to meet evolving global health needs. Eur J Nutr 2023; 62:1-16. [PMID: 38015211 PMCID: PMC10684707 DOI: 10.1007/s00394-023-03276-9] [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: 09/22/2023] [Accepted: 10/04/2023] [Indexed: 11/29/2023]
Abstract
Populations in crisis!A global overview of health challenges and policy efforts within the scope of current nutrition issues, from persistent forms of undernutrition, including micronutrient deficiency, to diet-related chronic diseases. Nutrition science has evolved from a therapeutic and prevention emphasis to include a focus on diets and food systems. Working and consensus definitions are needed, as well as guidance related to healthy diets and the emerging issues that require further research and consensus building. Between nutrient deficiency and chronic disease, nutrition has evolved from focusing exclusively on the extremes of overt nutrient deficiency and chronic disease prevention, to equipping bodies with the ability to cope with physiologic, metabolic, and psychological stress. Just what is 'optimal nutrition', is that a valid public health goal, and what terminology is being provided by the nutrition science community? Nutrition research on 'healthspan', resilience, and intrinsic capacity may provide evidence to support optimal nutrition. Finally, experts provide views on ongoing challenges of achieving consensus or acceptance of the various definitions and interventions for health promotion, and how these can inform government health policies.Nutrition topics that receive particular focus in these proceedings include choline, NAD-replenishment in neurodegenerative diseases, and xanthophyll carotenoids. Choline is a crucial nutrient essential for cellular metabolism, requiring consumption from foods or supplements due to inadequate endogenous synthesis. Maternal choline intake is vital for fetal and infant development to prevent neural tube defects. Neurodegenerative diseases pose a growing health challenge, lacking effective therapies. Nutrition, including NAD-replenishing nutrients, might aid prevention. Emerging research indicates xanthophyll carotenoids enhance vision and cognition, potentially impacting age-related diseases.
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Affiliation(s)
- Lynnette M Neufeld
- Food and Nutrition Division, Food and Agriculture Organization of the United Nations, Rome, Italy
| | - Emily Ho
- Linus Pauling Institute and College of Health, Oregon State University, Corvallis, OR, USA
| | - Rima Obeid
- Department of Clinical Chemistry and Laboratory Medicine, University Hospital of the Saarland, Homburg, Germany
| | - Charalampos Tzoulis
- Department of Neurology, Haukeland University Hospital, Bergen, Norway
- Department of Clinical Medicine, K.G. Jebsen Center for Translational Research in Parkinson's Disease, University of Bergen, Bergen, Norway
| | - Marina Green
- Nutrition Research Centre Ireland, South East Technological University, Waterford, Ireland
| | - Luke G Huber
- Council for Responsible Nutrition, Washington, DC, USA
| | | | - James C Griffiths
- Council for Responsible Nutrition-International, Washington, DC, USA.
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Barros MP, Zacarías-Garcia J, Rey F, Zacarías L, Rodrigo MJ. Antioxidant Interactions between Citrus Fruit Carotenoids and Ascorbic Acid in New Models of Animal Cell Membranes. Antioxidants (Basel) 2023; 12:1733. [PMID: 37760036 PMCID: PMC10525925 DOI: 10.3390/antiox12091733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/23/2023] [Accepted: 08/25/2023] [Indexed: 09/29/2023] Open
Abstract
The regular consumption of citrus fruits by humans has been associated with lower incidence of chronic-degenerative diseases, especially those mediated by free radicals. Most of the health-promoting properties of citrus fruits derive from their antioxidant content of carotenoids and ascorbic acid (ASC). In the current work we have investigated the scavenging (against hydroxyl radical) and quenching capacities (against singlet oxygen) of four different carotenoid extracts of citrus fruits in the presence or absence of ASC (μM range) in organic solvent, aqueous solution, micelles and in an innovative biomimicking liposomal system of animal cell membrane (AML). The fruits of four varieties of citrus were selected for their distinctive carotenoid composition (liquid chromatography characterization): 'Nadorcott' mandarin and the sweet oranges 'Valencia late', 'Ruby Valencia' and 'Pinalate' mutant. The quenching activity of citrus carotenoids strongly depended on the biological assemblage: freely diffusible in organic solvent, 'Ruby Valencia' carotenoids (containing lycopene) showed the highest quenching activity, whereas 'Nadorcott' mandarin extracts, rich in β-cryptoxanthin, prevailed in micellar systems. Interestingly, the addition of 10 μM ASC significantly increased the quenching activity of all citrus extracts in micelles: 'Valencia' orange (+53%), 'Pinalate' (+87%), 'Ruby' (4-fold higher) and 'Nadorcott' mandarins (+20%). Accurate C11-BODIPY581/591 fluorescence assays showed solid scavenging activities of all citrus extracts against AML oxidation: 'Valencia' (-61%), 'Pinalate' (-58%) and 'Ruby' oranges (-29%), and 'Nadorcott' mandarins (-70%). Indeed, all four citrus extracts tested here have balanced antioxidant properties; extracts from the 'Nadorcott' mandarin slightly prevailed overall, due, at least in part, to its high content of β-cryptoxanthin. This study depicts some of the antioxidant interactions between citrus fruit carotenoids and ascorbic acid in models of animal cell membranes and reinforces the contribution of them in promoting health benefits for humans.
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Affiliation(s)
- Marcelo P. Barros
- Food Biotechnology Department, Institute of Agrochemistry and Food Technology, Spanish National Research Council (IATA-CSIC), Catedrático Agustín Escardino 7, Paterna, 46980 Valencia, Spain; (J.Z.-G.); (F.R.); (L.Z.)
- Interdisciplinary Program in Health Sciences, Institute of Physical Activity Sciences and Sports (ICAFE), Cruzeiro do Sul University, Rua Galvao Bueno 868, São Paulo 01506-000, Brazil
| | - Jaime Zacarías-Garcia
- Food Biotechnology Department, Institute of Agrochemistry and Food Technology, Spanish National Research Council (IATA-CSIC), Catedrático Agustín Escardino 7, Paterna, 46980 Valencia, Spain; (J.Z.-G.); (F.R.); (L.Z.)
| | - Florencia Rey
- Food Biotechnology Department, Institute of Agrochemistry and Food Technology, Spanish National Research Council (IATA-CSIC), Catedrático Agustín Escardino 7, Paterna, 46980 Valencia, Spain; (J.Z.-G.); (F.R.); (L.Z.)
| | - Lorenzo Zacarías
- Food Biotechnology Department, Institute of Agrochemistry and Food Technology, Spanish National Research Council (IATA-CSIC), Catedrático Agustín Escardino 7, Paterna, 46980 Valencia, Spain; (J.Z.-G.); (F.R.); (L.Z.)
| | - María J. Rodrigo
- Food Biotechnology Department, Institute of Agrochemistry and Food Technology, Spanish National Research Council (IATA-CSIC), Catedrático Agustín Escardino 7, Paterna, 46980 Valencia, Spain; (J.Z.-G.); (F.R.); (L.Z.)
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Jurja S, Negreanu-Pirjol T, Vasile M, Hincu MM, Coviltir V, Negreanu-Pirjol BS. Xanthophyll pigments dietary supplements administration and retinal health in the context of increasing life expectancy trend. Front Nutr 2023; 10:1226686. [PMID: 37637949 PMCID: PMC10450221 DOI: 10.3389/fnut.2023.1226686] [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: 05/22/2023] [Accepted: 07/28/2023] [Indexed: 08/29/2023] Open
Abstract
Introduction Medicine faces nowadays the trend of increasing life expectancy of human population, with the resulting increase of degenerative age related diseases prevalence, combined with the risks of less tempered sun radiations environment exposure. Under these circumstances, our work pointed out on evaluating the effect of some xanthophyll pigments dietary supplements, actually widely recommended, for prevention of retinal degenerative damages and for slowing down the progression of such age related changes if they have already occurred. These dietary supplements are already well known for their total antioxidant activity, proven by photochemiluminescence method using Total Antioxidant Capacity in Lipid soluble-substances procedure. Materials and methods The study recruited a number of 120 subjects equally divided on genders. The lot included a first group of 60 patients with comparable ages (all of them over 50 years and divided in 2 segments of age: 50-60 and over 60) and suffering from comparable retinal age-related degenerative abnormalities (mild/medium severity age-related macular degeneration according to Wisconsin Age-Related Maculopathy Grading System), and a second group, considered control, including a similar number of healthy, normal retina subjects belonging to same age and gender categories. There were evaluated at baseline the eye medical status and the retinal risk by specific methods: complete eye check-up, Amsler grid, specific standardized questionnaires focused on visual function and its impact on the quality of current life. Both groups, patients and control, received similar dosages of xanthophyll pigments dietary supplements including lutein and zeaxanthin during 18 months after baseline; at the end of this supplementation period a new evaluation was conducted. In the second part of the research all subjects involved received a new dietary supplement in which the same xanthophylls were enriched with C and E vitamins and oligo-elements Zinc and Copper. At the end of three years duration supplementation, the subjects were reevaluated and the paper presents the conclusions on the matter, pointing on the impact of xanthophyll supplements on visual health. Results Correlation tests were applied to the complete set of data. Correlation tests have values between -1 and +1. The value -1 represents the negative correlation (reverse proportionality) meanwhile the value +1 represents the positive correlation (direct proportionality). The charts show the curves that are fitting experimental data. The dependence is linear in nature, and the value R2, as it approaches more the value 1, represents a better match with the experimental data (the data are in a percentage of approximately 99% on these straight lines of type y = ax + b). In the charts, there were noted the average values of the scores for healthy control patients with "Control", and the average values of the scores for the patients with existing age related degenerative retinal pathology at baseline with "Patients". Discussion The retinal function and the impact of visual condition on health were both evaluated at baseline, 18 months and 36 months after baseline, by visual acuity, ophthalmoscopy fundus examination, Amsler test and by asking the subjects to answer the visual function questionnaires: EQ-5D, NEI-VFQ-25, as measures of health status quality and of the influence on welfare. The study revealed that under supplementation both control healthy subjects and patients with known degenerative retinal pathology included in the 50-60 years of age group evolved almost the same way, leading to the conclusion that administered xanthophyll pigments-based supplements, simple or enriched, managed to slow down the progression of abnormal degenerative vision loss to a rate comparable to physiological aging-related vision loss. It was also observed that intake of xanthophyll pigments dietary supplements preserved the general health condition and maintained relatively constant vision on the entire 36th months follow-up research duration in patients presented with existing age related degenerative retinal pathology at baseline. For healthy subjects, evaluation showed an improvement in results after dietary supplementation, with maintenance of constant vision and a significantly increase of general condition, in a positive sense. For subjects over the age of 60 dietary supplements intake was even more effective compared to younger group in providing better control of degenerative processes.
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Affiliation(s)
- Sanda Jurja
- Department of Ophthalmology, Faculty of Medicine, “Ovidius” University, Constanta, Romania
| | - Ticuta Negreanu-Pirjol
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, “Ovidius” University, Constanta, Romania
| | - Monica Vasile
- Department of Preclinical Sciences, Faculty of Medicine, “Ovidius” University, Constanta, Romania
| | | | - Valeria Coviltir
- Department of Ophthalmology, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, Bucharest, Romania
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Su W, Xu W, Liu E, Su W, Polyakov NE. Improving the Treatment Effect of Carotenoids on Alzheimer's Disease through Various Nano-Delivery Systems. Int J Mol Sci 2023; 24:ijms24087652. [PMID: 37108814 PMCID: PMC10142927 DOI: 10.3390/ijms24087652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/10/2023] [Accepted: 04/20/2023] [Indexed: 04/29/2023] Open
Abstract
Natural bioactive compounds have recently emerged as a current strategy for Alzheimer's disease treatment. Carotenoids, including astaxanthin, lycopene, lutein, fucoxanthin, crocin and others are natural pigments and antioxidants, and can be used to treat a variety of diseases, including Alzheimer's disease. However, carotenoids, as oil-soluble substances with additional unsaturated groups, suffer from low solubility, poor stability and poor bioavailability. Therefore, the preparation of various nano-drug delivery systems from carotenoids is a current measure to achieve efficient application of carotenoids. Different carotenoid delivery systems can improve the solubility, stability, permeability and bioavailability of carotenoids to a certain extent to achieve Alzheimer's disease efficacy. This review summarizes recent data on different carotenoid nano-drug delivery systems for the treatment of Alzheimer's disease, including polymer, lipid, inorganic and hybrid nano-drug delivery systems. These drug delivery systems have been shown to have a beneficial therapeutic effect on Alzheimer's disease to a certain extent.
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Affiliation(s)
- Wenjing Su
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
| | - Wenhao Xu
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
| | - Enshuo Liu
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
| | - Weike Su
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
| | - Nikolay E Polyakov
- Institute of Solid State Chemistry and Mechanochemistry, 630128 Novosibirsk, Russia
- Institute of Chemical Kinetics and Combustion, 630090 Novosibirsk, Russia
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Antioxidant and Anti-Inflammatory Effects of Carotenoids in Mood Disorders: An Overview. Antioxidants (Basel) 2023; 12:antiox12030676. [PMID: 36978923 PMCID: PMC10045512 DOI: 10.3390/antiox12030676] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 02/25/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
Depression has a multifactorial etiology comprising family history and unemployment. This review aims to summarize the evidence available for the antioxidant and anti-inflammatory effects of carotenoids in mood disorders. This review article’s methodologies were based on a search of the PubMed database for all linked published papers. Epidemiological studies indicate that a diet rich in vegetables, fruits, nuts, fish, and olive oil may prevent the development of depression. Antioxidant supplementation has been found to combat various stress-induced psychiatric disorders, including depression and anxiety. A growing body of evidence indicates that carotenoids have both antioxidant and anti-inflammatory. Studies also suggest that poor dietary intake, particularly low intakes of fruit and vegetables and high intakes of fast food and other convenience foods, may increase the risk of developing depression. Thus, dietary interventions have the potential to help mitigate the risk of mental health decline in both the general population and those with mood disorders. Considering that carotenoids have both antioxidant and anti-inflammatory effects, it is expected that they might exert a promising antidepressant effect. Nevertheless, further studies (including interventional and mechanistic studies) assessing the effect of carotenoids on preventing and alleviating depression symptoms are needed.
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Ashokkumar V, Flora G, Sevanan M, Sripriya R, Chen WH, Park JH, Rajesh Banu J, Kumar G. Technological advances in the production of carotenoids and their applications- A critical review. BIORESOURCE TECHNOLOGY 2023; 367:128215. [PMID: 36332858 DOI: 10.1016/j.biortech.2022.128215] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 05/21/2023]
Abstract
Carotenoids are naturally occurring pigments that are widely distributed in algae, fungi, bacteria, and plants. Carotenoids play a significant role in the food, feed, cosmetic, nutraceutical, and pharmaceutical industries. These pigments are effectively considered as a health-promoting compounds, which are widely used in our daily diet to reduce the risk of chronic diseases such as cardiovascular diseases, cancer, acute lung injury, cataracts, neural disorders, etc. In this context, this review paper demonstrates the synthesis of carotenoids and their potential application in the food and pharmaceutical industries. However, the demand for carotenoid production is increasing overtime, and the extraction and production are expensive and technically challenging. The recent developments in carotenoid biosynthesis, and key challenges, bottlenecks, and future perspectives were also discussed to enhance the circular bioeconomy.
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Affiliation(s)
- Veeramuthu Ashokkumar
- Biorefineries for Biofuels & Bioproducts Laboratory (BBBL), Center for Trandisciplinary Research, Department of Pharmacology, SDC, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 600077, India
| | - G Flora
- Department of Botany, St. Mary's College (Autonomous), Thoothukudi, Tamil Nadu, India
| | - Murugan Sevanan
- Department of Biotechnology, Karunya Institute of Technology and Sciences (Deemed to be University), Combatore, India
| | - R Sripriya
- Department of Zoology, St. Mary's College (Autonomous), Thoothukudi, India
| | - W H Chen
- Department Aeronautical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Jeong-Hoon Park
- Sustainable Technology and Wellness R&D Group, Korea Institute of Industrial Technology (KITECH), 102 Jejudaehak-ro, Jeju-si, Jeju-do 63243, South Korea
| | - J Rajesh Banu
- Department of Biotechnology, Central University of Tamil Nadu, Thiruvarur, Tamil Nadu, 610005, India
| | - Gopalakrishnan Kumar
- School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, South Korea.
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Dietary Intake of Carotenoids and Risk of Depressive Symptoms: A Systematic Review and Meta-Analysis. Antioxidants (Basel) 2022; 11:antiox11112205. [PMID: 36358577 PMCID: PMC9686905 DOI: 10.3390/antiox11112205] [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: 10/07/2022] [Revised: 11/03/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022] Open
Abstract
Given the important role of oxidative stress in the pathogenesis of depression, the potential role of dietary antioxidant supplementation in the prevention of depression has attracted considerable attention. Most studies suggest that dietary carotenoids may play a role in maintaining depressive symptoms due to their antioxidant activity, but some studies concluded the contrary. This study conducted a meta-analysis of observational studies to test the relationship between carotenoid supplements and depressive symptoms. After a comprehensive search of the Cochrane Library, PubMed, Embase Scopus, and Web of Science databases from their inception to 28 July 2022, 12 publications met the inclusion and exclusion criteria, of which 8 were cross-sectional studies, 3 were case−control studies, and 1 was a cohort study, involving a total of 33,466 participants. Pooled meta-analysis found that intake of total carotenoids (OR = 0.61, 95% CI [0.53, 0.71], p < 0.01), beta-carotene (OR = 0.61, 95% CI [0.52, 0.70], p < 0.01), alpha-carotene (OR = 0.71, 95% CI [0.60, 0.83], p < 0.01), lycopene (OR = 0.71, 95% CI [0.55, 0.90], p < 0.01), lutein, and/or corn xanthin (OR = 0.53, 95% CI [0.43, 0.66], p < 0.01) was significantly inversely associated with depressive symptoms, while beta-cryptoxanthin (OR = 1.07, 95% CI [0.52, 2.21], p = 0.86) had no significance. At the same time, this meta-analysis was free of publication bias and heterogeneity. Although further studies are needed to elucidate the causal relationship between carotenoids and depressive symptoms, and to further reveal the mechanism of their association, the results of our meta-analysis suggest that carotenoids are protective factors for depressive symptoms, and dietary intake may help in reducing the risk of depressive symptoms.
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Cannavale CN, Keye SA, Rosok L, Martell S, Holthaus TA, Reeser G, Raine LB, Mullen SP, Cohen NJ, Hillman CH, Hammond BR, Renzi-Hammond L, Khan NA. Enhancing children's cognitive function and achievement through carotenoid consumption: The Integrated Childhood Ocular Nutrition Study (iCONS) protocol. Contemp Clin Trials 2022; 122:106964. [PMID: 36252934 PMCID: PMC10150405 DOI: 10.1016/j.cct.2022.106964] [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] [Received: 08/05/2022] [Revised: 10/05/2022] [Accepted: 10/11/2022] [Indexed: 01/27/2023]
Abstract
Lutein and zeaxanthin (L + Z) are carotenoids that accumulate in neural tissue and potentially confer benefits to cognition. Whereas cross-sectional studies have revealed positive associations between macular carotenoids (MC) and cognition, no studies have investigated whether L + Z supplementation impacts MC and cognition in childhood. Accordingly, the Integrated Childhood Ocular Nutrition Study aims to investigate the impact of L + Z supplementation over 9-months on academic abilities, attentional control, memory, and MC among preadolescent children. Children 8-10 years (N = 288) will enroll in a 9-month double-blind, placebo-controlled, randomized trial. The study is registered and approved as a clinical trial on the U.S. National Library of Medicine http://ClinicalTrials.gov registry (NCT05177679). Participants will be randomized into an active (10 mg lutein+2 mg zeaxanthin) or waitlist placebo-controlled group. Primary outcomes include hippocampal-dependent memory, attentional inhibition, and academic achievement using a spatial reconstruction task, an Eriksen flanker task, and the Kaufman Test of Academic and Educational Achievement 3rd edition, respectively. Secondary outcomes include event-related brain potentials of attentional resource allocation and information processing speed (i.e., P3/P300 amplitude and latency) recorded during the flanker task. Macular pigment optical density (MPOD) will be assessed using heterochromatic flicker photometry. Cognitive assessments will be completed prior to and after completion of the supplementation period. MPOD will be quantified prior to, at the mid-point of (4-5 months), and after (9 months) the supplementation period. It is hypothesized that L + Z supplementation will improve cognition and academic achievement. Further, benefits for cognition and achievement are anticipated to be mediated by increases in MC among treatment group participants.
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Affiliation(s)
- Corinne N Cannavale
- Department of Kinesiology and Community Health, University of Illinois Urbana-Champaign, Urbana, IL, United States of America
| | - Shelby A Keye
- Department of Kinesiology and Community Health, University of Illinois Urbana-Champaign, Urbana, IL, United States of America
| | - Laura Rosok
- Neuroscience Program, University of Illinois Urbana-Champaign, Urbana, IL, United States of America
| | - Shelby Martell
- Neuroscience Program, University of Illinois Urbana-Champaign, Urbana, IL, United States of America
| | - Tori A Holthaus
- Division of Nutritional Sciences, University of Illinois Urbana-Champaign, Urbana, IL, United States of America
| | - Ginger Reeser
- Department of Kinesiology and Community Health, University of Illinois Urbana-Champaign, Urbana, IL, United States of America
| | - Lauren B Raine
- Department of Physical Therapy, Movement, and Rehabilitation Sciences, Northeastern University, Boston, MA, United States of America
| | - Sean P Mullen
- Department of Kinesiology and Community Health, University of Illinois Urbana-Champaign, Urbana, IL, United States of America; Beckman Institute for the Advancement of Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL, United States of America; Illinois Informatics Institute, University of Illinois Urbana-Champaign, Urbana, IL, United States of America; Center for Social and Behavioral Science, University of Illinois Urbana-Champaign, Urbana, IL, United States of America
| | - Neal J Cohen
- Neuroscience Program, University of Illinois Urbana-Champaign, Urbana, IL, United States of America; Department of Psychology, University of Illinois Urbana-Champaign, Urbana, IL, United States of America; Interdisciplinary Health Sciences Institute, University of Illinois Urbana-Champaign, Urbana, IL, United States of America
| | - Charles H Hillman
- Department of Psychology, Northeastern University, Boston, MA, United States of America; Department of Physical Therapy, Movement, and Rehabilitation Sciences, Northeastern University, Boston, MA, United States of America
| | - Billy R Hammond
- Department of Psychology, University of Georgia, Athens, GA, United States of America
| | - Lisa Renzi-Hammond
- Department of Psychology, University of Georgia, Athens, GA, United States of America; College of Public Health, University of Georgia, Athens, GA, United States of America
| | - Naiman A Khan
- Department of Kinesiology and Community Health, University of Illinois Urbana-Champaign, Urbana, IL, United States of America; Neuroscience Program, University of Illinois Urbana-Champaign, Urbana, IL, United States of America; Division of Nutritional Sciences, University of Illinois Urbana-Champaign, Urbana, IL, United States of America; Beckman Institute for the Advancement of Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL, United States of America.
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Mane S, Kumari P, Singh A, Taneja NK, Chopra R. Amelioration for oxidative stability and bioavailability of N-3 PUFA enriched microalgae oil: an overview. Crit Rev Food Sci Nutr 2022; 64:2579-2600. [PMID: 36128949 DOI: 10.1080/10408398.2022.2124505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Technological improvements in dietary supplements and nutraceuticals have highlighted the significance of bioactive molecules in a healthy lifestyle. Eicosapentaenoic acid and Cervonic acid (DHA), omega-3 polyunsaturated fatty acids seem to be famed for their ability to prevent diverse physiological abnormalities. Selection of appropriate pretreatments and extraction techniques for extraction of lipids from robust microalgae cell wall are very important to retain their stability and bioactivity. Therefore, extraction techniques with optimized extraction parameters offer an excellent approach for obtaining quality oil with a high yield. Oils enriched in omega-3 are particularly imperiled to oxidation which ultimately affects customer acceptance. Bio active encapsulation could be one of the effective approaches to overcome this dilemma. This review paper aims to give insight into the cultivation methods, and downstream processes, various lipid extraction approaches, techniques for retaining oxidative stability, bioavailability and food applications based on extracted or encapsulated omega-3.
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Affiliation(s)
- Sheetal Mane
- Department of Food Engineering, National Institute of Food Technology Entrepreneurship and Management (NIFTEM), Sonipat, Haryana, India
| | - Purnima Kumari
- Department of Food Engineering, National Institute of Food Technology Entrepreneurship and Management (NIFTEM), Sonipat, Haryana, India
| | - Anupama Singh
- Department of Food Engineering, National Institute of Food Technology Entrepreneurship and Management (NIFTEM), Sonipat, Haryana, India
| | - Neetu Kumra Taneja
- Department of Basic and Applied Sciences, National Institute of Food Technology Entrepreneurship and Management (NIFTEM), Sonipat, Haryana, India
| | - Rajni Chopra
- Department of Food Science and Technology, National Institute of Food Technology Entrepreneurship and Management (NIFTEM), Sonipat, Haryana, India
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Nanoscale Delivery Systems of Lutein: An Updated Review from a Pharmaceutical Perspective. Pharmaceutics 2022; 14:pharmaceutics14091852. [PMID: 36145601 PMCID: PMC9501598 DOI: 10.3390/pharmaceutics14091852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/28/2022] [Accepted: 08/30/2022] [Indexed: 11/17/2022] Open
Abstract
Carotenoids are natural lipid-soluble pigments that produce yellow to red colors in plants as well as providing bright coloration in vegetables and fruits. Lutein belongs to the xanthophyll subgroup of the carotenoid family, which plays an essential role in photosynthesis and photoprotection in nature. In the human body, lutein, together with its isomer zeaxanthin and its metabolite meso-zeaxanthin, accumulates in the macula of the eye retina, which is responsible for central, high-resolution, and color vision. As a bioactive phytochemical, lutein has essential physiological functions, providing photoprotection against damaging blue light, along with the neutralization of oxidants and the preservation of the structural and functional integrity of cellular membranes. As a potent antioxidant and anti-inflammatory agent, lutein unfortunately has a low bioavailability because of its lipophilicity and a low stability as a result of its conjugated double bonds. In order to enhance lutein stability and bioavailability and achieve its controlled delivery to a target, nanoscale delivery systems, which have great potential for the delivery of bioactive compounds, are starting to be employed. The current review highlights the advantages and innovations associated with incorporating lutein within promising nanoscale delivery systems, such as liposomes, nanoemulsions, polymer nanoparticles, and polymer–lipid hybrid nanoparticles, as well as their unique physiochemical properties.
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Unravelling the neuroprotective mechanisms of carotenes in differentiated human neural cells: Biochemical and proteomic approaches. FOOD CHEMISTRY. MOLECULAR SCIENCES 2022; 4:100088. [PMID: 35415676 PMCID: PMC8991711 DOI: 10.1016/j.fochms.2022.100088] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 02/08/2022] [Accepted: 02/11/2022] [Indexed: 12/20/2022]
Abstract
Total mixed carotenes (TMC) protect differentiated human neural cells against 6-hydroxydopamine-induced toxicity. TMC elevated the antioxidant enzymes activities and suppressed generation of reactive oxygen species. TMC augmented the dopamine and tyrosine hydroxylase levels. TMC exerted differential protein expression in human neural cells.
Carotenoids, fat-soluble pigments found ubiquitously in plants and fruits, have been reported to exert significant neuroprotective effects against free radicals. However, the neuroprotective effects of total mixed carotenes complex (TMC) derived from virgin crude palm oil have not been studied extensively. Therefore, the present study was designed to establish the neuroprotective role of TMC on differentiated human neural cells against 6-hydroxydopamine (6-OHDA)-induced cytotoxicity. The human neural cells were differentiated using retinoic acid for six days. Then, the differentiated neural cells were pre-treated for 24 hr with TMC before exposure to 6-OHDA. TMC pre-treated neurons showed significant alleviation of 6-OHDA-induced cytotoxicity as evidenced by enhanced activity of the superoxide dismutase (SOD) and catalase (CAT) enzymes. Furthermore, TMC elevated the levels of intra-neuronal dopamine and tyrosine hydroxylase (TH) in differentiated neural cells. The 6-OHDA induced overexpression of α-synuclein was significantly hindered in neural cells pre-treated with TMC. In proteomic analysis, TMC altered the expression of ribosomal proteins, α/β isotypes of tubulins, protein disulphide isomerases (PDI) and heat shock proteins (HSP) in differentiated human neural cells. The natural palm phytonutrient TMC is a potent antioxidant with significant neuroprotective effects against free radical-induced oxidative stress.
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Key Words
- 6-OHDA, 6-hydroxydopamine
- 6-hydroxydopamine
- AD, Alzheimer’s disease
- BCM, beta-carotene-15,15′-monooxygenase
- CAT, catalase
- DRD2, dopamine receptor D2
- Dopamine
- ER, endoplasmic reticulum
- GO, gene ontology
- HSP, Heat shock protein
- HSPA9, Heat shock protein family A (HSP70) member 9
- HSPD1, Heat shock protein family D (HSP60) member 1
- KEGG, Kyoto Encyclopedia of Genes and Genomes
- LC-MS/MS, liquid chromatography-double mass spectrometry
- LDH, lactate dehydrogenase
- MCODE, minimal common oncology data elements
- MS, mass spectrometry
- Mixed carotene
- PD, Parkinson's disease
- PDI, protein disulphide isomerases
- PHB2, prohibitin 2
- PPI, protein–protein interaction
- RAN, Ras-related nuclear protein
- ROS, reactive oxygen species
- RPs, ribosomal proteins
- SH-SY5Y neuroblastoma cells
- SOD, superoxide dismutase
- TH, tyrosine hydroxylase
- TMC, total mixed carotene complex
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Liu R, Xu Y, Zhang T, Gong M, Liu R, Chang M, Wang X. Interactions between liposoluble antioxidants: A critical review. Food Res Int 2022; 155:111104. [DOI: 10.1016/j.foodres.2022.111104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 03/03/2022] [Accepted: 03/04/2022] [Indexed: 11/04/2022]
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Kabir MT, Rahman MH, Shah M, Jamiruddin MR, Basak D, Al-Harrasi A, Bhatia S, Ashraf GM, Najda A, El-Kott AF, Mohamed HRH, Al-Malky HS, Germoush MO, Altyar AE, Alwafai EB, Ghaboura N, Abdel-Daim MM. Therapeutic promise of carotenoids as antioxidants and anti-inflammatory agents in neurodegenerative disorders. Biomed Pharmacother 2022; 146:112610. [PMID: 35062074 DOI: 10.1016/j.biopha.2021.112610] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/26/2021] [Accepted: 12/26/2021] [Indexed: 11/17/2022] Open
Abstract
Neurodegenerative disorders (NDs) including Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, Huntington's disease, and multiple sclerosis have various disease-specific causal factors and pathological features. A very common characteristic of NDs is oxidative stress (OS), which takes place due to the elevated generation of reactive oxygen species during the progression of NDs. Furthermore, the pathological condition of NDs including an increased level of protein aggregates can further lead to chronic inflammation because of the microglial activation. Carotenoids (CTs) are naturally occurring pigments that play a significant role in averting brain disorders. More than 750 CTs are present in nature, and they are widely available in plants, microorganisms, and animals. CTs are accountable for the red, yellow, and orange pigments in several animals and plants, and these colors usually indicate various types of CTs. CTs exert various bioactive properties because of its characteristic structure, including anti-inflammatory and antioxidant properties. Due to the protective properties of CTs, levels of CTs in the human body have been markedly linked with the prevention and treatment of multiple diseases including NDs. In this review, we have summarized the relationship between OS, neuroinflammation, and NDs. In addition, we have also particularly focused on the antioxidants and anti-inflammatory properties of CTs in the management of NDs.
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Affiliation(s)
- Md Tanvir Kabir
- Department of Pharmacy, Brac University, 66 Mohakhali, Dhaka 1212, Bangladesh
| | - Md Habibur Rahman
- Department of Pharmacy, Southeast University, Banani, Dhaka 1213, Bangladesh; Department of Global Medical Science, Yonsei University Wonju College of Medicine, Yonsei University, Wonju 26426, Gangwon-do, South Korea.
| | - Muddaser Shah
- Department of Botany, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan
| | | | - Debasish Basak
- Department of Pharmaceutical Sciences, College of Pharmacy, Larkin University, Miami, FL 33169, United States
| | - Ahmed Al-Harrasi
- Natural & Medical Sciences Research Center, University of Nizwa, P.O. Box 33, 616 Birkat Al Mauz, Nizwa, Oman
| | - Saurabh Bhatia
- Natural & Medical Sciences Research Center, University of Nizwa, P.O. Box 33, 616 Birkat Al Mauz, Nizwa, Oman; School of Health Science, University of Petroleum and Energy Studies, Prem Nagar, Dehradun, Uttarakhand, 248007, India
| | - Ghulam Md Ashraf
- Pre-Clinical Research Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia; Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Agnieszka Najda
- Department of Vegetable and Herbal Crops, University of Life Sciences in Lublin, 50A Doświadczalna Street, 20-280 Lublin, Poland.
| | - Attalla F El-Kott
- Biology Department, Faculty of Science, King Khalid University, Abha 61421, Saudi Arabia; Zoology Department, College of Science, Damanhour University, Damanhour 22511, Egypt
| | - Hanan R H Mohamed
- Zoology Department, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Hamdan S Al-Malky
- Regional Drug Information Center, Ministry of Health, Jeddah, Saudi Arabia
| | - Mousa O Germoush
- Biology Department, College of Science, Jouf University, P.O. Box: 2014, Sakaka, Saudi Arabia
| | - Ahmed E Altyar
- Department of Pharmacy Practice, Faculty of Pharmacy, King Abdulaziz University, P.O. Box 80260, Jeddah 21589, Saudi Arabia
| | - Esraa B Alwafai
- Pharmacy Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
| | - Nehmat Ghaboura
- Department of Pharmacy Practice, Pharmacy Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
| | - Mohamed M Abdel-Daim
- Department of Pharmaceutical Sciences, Pharmacy Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia; Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt.
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Nishida Y, Nawaz A, Hecht K, Tobe K. Astaxanthin as a Novel Mitochondrial Regulator: A New Aspect of Carotenoids, beyond Antioxidants. Nutrients 2021; 14:nu14010107. [PMID: 35010981 PMCID: PMC8746862 DOI: 10.3390/nu14010107] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/21/2021] [Accepted: 12/23/2021] [Indexed: 12/12/2022] Open
Abstract
Astaxanthin is a member of the carotenoid family that is found abundantly in marine organisms, and has been gaining attention in recent years due to its varied biological/physiological activities. It has been reported that astaxanthin functions both as a pigment, and as an antioxidant with superior free radical quenching capacity. We recently reported that astaxanthin modulated mitochondrial functions by a novel mechanism independent of its antioxidant function. In this paper, we review astaxanthin’s well-known antioxidant activity, and expand on astaxanthin’s lesser-known molecular targets, and its role in mitochondrial energy metabolism.
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Affiliation(s)
- Yasuhiro Nishida
- First Department of Internal Medicine, Faculty of Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
- Fuji Chemical Industries, Co., Ltd., 55 Yokohoonji, Kamiich-machi, Nakaniikawa-gun, Toyama 930-0405, Japan
- Correspondence: (Y.N.); (A.N.); (K.T.)
| | - Allah Nawaz
- First Department of Internal Medicine, Faculty of Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
- Department of Molecular and Medical Pharmacology, Faculty of Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
- Correspondence: (Y.N.); (A.N.); (K.T.)
| | - Karen Hecht
- AstaReal, Inc., 3 Terri Lane, Unit 12, Burlington, NJ 08016, USA;
| | - Kazuyuki Tobe
- First Department of Internal Medicine, Faculty of Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
- Correspondence: (Y.N.); (A.N.); (K.T.)
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Gazzolo D, Picone S, Gaiero A, Bellettato M, Montrone G, Riccobene F, Lista G, Pellegrini G. Early Pediatric Benefit of Lutein for Maturing Eyes and Brain-An Overview. Nutrients 2021; 13:3239. [PMID: 34579116 PMCID: PMC8468336 DOI: 10.3390/nu13093239] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 08/31/2021] [Accepted: 09/02/2021] [Indexed: 01/15/2023] Open
Abstract
Lutein is a dietary carotenoid preferentially accumulated in the eye and the brain in early life and throughout the life span. Lutein accumulation in areas of high metabolism and oxidative stress such as the eye and the brain suggest a unique role of this ingredient during the development and maturation of these organs of common embryological origin. Lutein is naturally provided to the developing baby via the cord blood, breast milk and then infant diet. The presence of this carotenoid depends on fruit and vegetable intakes and its bioavailability is higher in breastmilk. This paper aims to review the anatomical development of the eye and the brain, explore the presence and selective deposition of lutein in these organs during pregnancy and infancy and, based on its functional characteristics, present the latest available research on the beneficial role of lutein in the pediatric population. The potential effects of lutein in ameliorating conditions associated with increase oxidative stress such as in prematurity will be also addressed. Since consumption of lutein rich foods falls short of government guidelines and in most region of the world infant formulas lack this bioactive, dietary recommendations for pregnant and breastfeeding women and their child can help to bridge the gap.
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Affiliation(s)
- Diego Gazzolo
- Neonatal Intensive Care Unit, Department of Pediatrics, University G. d’Annunzio, 65100 Chieti, Italy
- Department of Pediatrics, Maastricht University, 6200 MD Maastricht, The Netherlands
| | - Simonetta Picone
- Neonatal Intensive Care Unit, Policlinico Casilino, 00169 Rome, Italy;
| | - Alberto Gaiero
- Pediatric and Neonatology Unit, asl2 Ospedale San Paolo Savona, 17100 Savona, Italy;
| | - Massimo Bellettato
- Department of Women and Child’s Health, San Bortolo Hospital, 36100 Vicenza, Italy;
| | - Gerardo Montrone
- S.S.V.D “NIDO E STEN” Ospedali Riuniti Foggia, 71122 Foggia, Italy;
| | | | - Gianluca Lista
- Neonatal Intensive Care Unit, Department of Pediatrics, Ospedale dei Bambini V. Buzzi, ASST-FBF-Sacco, 20154 Milan, Italy;
| | - Guido Pellegrini
- Department of Pediatrics and Neonatology, Presidio Ospedaliero “Città di Sesto San Giovanni, Sesto san Giovanni, 20099 Milan, Italy;
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Qu M, Shi H, Wang K, Wang X, Yu N, Guo B. The Associations of Plasma/Serum Carotenoids with Alzheimer's Disease: A Systematic Review and Meta-Analysis. J Alzheimers Dis 2021; 82:1055-1066. [PMID: 34151808 DOI: 10.3233/jad-210384] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND Multiple lines of evidence indicate protective effects of carotenoids in Alzheimer's disease (AD). However, previous epidemiological studies reported inconsistent results regarding the associations between carotenoids levels and the risk of AD. OBJECTIVE Our study aims to evaluate the associations of six major members of carotenoids with the occurrence of AD by conducting a systematic review and meta-analysis. METHODS Following PRISMA guidelines, a comprehensive literature search of PubMed, Web of Science, Ebsco, and PsycINFO databases was conducted, and the quality of each included studies was evaluated by a validated scoring systems. Standardized mean differences (SMD) with 95% confidence intervals (CI) were determined by using a random effects model. Heterogeneity was evaluated by I2 statistics. Publication bias was detected using funnel plots and Egger's test. RESULTS Sixteen studies, with 10,633 participants were included. Pooled analysis showed significantly lower plasma/serum levels of lutein (SMD = -0.86, 95% CI: -1.67 to -0.05, p = 0.04) and zeaxanthin (SMD = -0.59; 95% CI: -1.12 to -0.06, p = 0.03) in patients with AD versus cognitively intact controls, while α-carotene (SMD = 0.21, 95% CI: -0.68 to 0.26, p = 0.39), β-carotene (SMD = 0.04, 95% CI: -0.57 to 0.65, p = 0.9), lycopene (SMD = -0.12, 95% CI: -0.96 to 0.72, p = 0.78), and β-cryptoxanthin (SMD = -0.09, 95% CI: -0.83 to 0.65, p = 0.81) did not achieve significant differences. CONCLUSION Of six major members of carotenoids, only lutein and zeaxanthin concentrations in plasma/serum were inversely related to the risk of AD. More high-quality longitudinal studies are needed to verify these findings.
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Affiliation(s)
- Mingyue Qu
- The PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Hanxu Shi
- The PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Kai Wang
- The PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Xinggang Wang
- Zibo Prevention and Treatment Center for Occupational Diseases (Affiliated Hospital of Jining Medical College), Shandong, China
| | - Nan Yu
- The PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Baoshi Guo
- The PLA Rocket Force Characteristic Medical Center, Beijing, China
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Green-Gomez M, Moran R, Stringham J, Hernández-Alcaraz C, Mendoza-Herrera K, Fromow-Guerra JJ, Prado-Cabrero A, Nolan J. Environmental and Nutritional Determinants of Macular Pigment in a Mexican Population. Invest Ophthalmol Vis Sci 2021; 62:18. [PMID: 34241622 PMCID: PMC8288050 DOI: 10.1167/iovs.62.9.18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 05/21/2021] [Indexed: 01/23/2023] Open
Abstract
Purpose The carotenoids lutein (L), zeaxanthin (Z), and meso-zeaxanthin deposit at the macula as macular pigment (MP) and provide visual benefits and protection against macular diseases. The present study investigated MP, its nutritional and environmental determinants, and its constituent carotenoids in serum from a Mexican sample, in healthy participants and with metabolic diseases. Additionally, we compared these variables with an Irish sample. Methods MP was measured in 215 subjects from a rural community in Mexico with dual-wavelength autofluorescence imaging reported as MP optical volume (MPOV). Dietary intake and serum concentrations of L and Z were evaluated. Results The mean MPOV was 8429 (95% confidence interval, 8060-8797); range. 1171-15,976. The mean L and Z serum concentrations were 0.25 ± 0.15 µmol/L and 0.09 ± 0.04 µmol/L, respectively. The MPOV was positively correlated with L and Z serum concentrations (r = 0.347; P < 0.001 and r = 0.311; P < 0.001, respectively), but not with L + Z dietary estimates. Subjects with daily sunlight exposure of more than 50% were found to have significantly higher MPOV than those with less than 50% (P = 0.005). MPOV and serum concentrations of L and Z were significantly higher in the Mexican sample compared with the Irish sample, but this difference was not reflected in dietary analysis. Conclusions These new data from a Mexican sample provide evidence of the multifactorial interactions and environmental determinants of MP such as sunlight exposure and dietary patterns. These findings will be essential for future studies in Mexico for eye health, visual function, and ocular pathology.
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Affiliation(s)
- Marina Green-Gomez
- Nutrition Research Centre Ireland, School of Health Science, Waterford Institute of Technology, Waterford, Ireland
| | - Rachel Moran
- Nutrition Research Centre Ireland, School of Health Science, Waterford Institute of Technology, Waterford, Ireland
| | - James Stringham
- Nutrition Research Centre Ireland, School of Health Science, Waterford Institute of Technology, Waterford, Ireland
| | - Cesar Hernández-Alcaraz
- Centro de Investigación en Nutrición y Salud, Instituto Nacional de Salud Pública, Cuernavaca, México
| | - Kenny Mendoza-Herrera
- Centro de Investigación en Nutrición y Salud, Instituto Nacional de Salud Pública, Cuernavaca, México
| | - J Jans Fromow-Guerra
- Retina Division, Asociación Para Evitar la Ceguera en México I.A.P., México City, México
| | - Alfonso Prado-Cabrero
- Nutrition Research Centre Ireland, School of Health Science, Waterford Institute of Technology, Waterford, Ireland
| | - John Nolan
- Nutrition Research Centre Ireland, School of Health Science, Waterford Institute of Technology, Waterford, Ireland
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Benefits of Exercise and Astaxanthin Supplementation: Are There Additive or Synergistic Effects? Antioxidants (Basel) 2021; 10:antiox10060870. [PMID: 34071514 PMCID: PMC8229412 DOI: 10.3390/antiox10060870] [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: 05/12/2021] [Revised: 05/23/2021] [Accepted: 05/25/2021] [Indexed: 11/30/2022] Open
Abstract
A healthy lifestyle is essential for maintaining physical and mental health. Health promotion, with a particular emphasis on regular exercise and a healthy diet, is one of the emerging trends in healthcare. However, the way in which exercise training and nutrients from dietary intake interact with each other to promote additive, synergistic, or antagonistic effects on physiological functions leading to health promotion, and the possible underlying biomolecular mechanisms of such interactions, remain poorly understood. A healthy diet is characterized by a high intake of various bioactive compounds usually found in natural, organic, and fresh foodstuffs. Among these bioactive compounds, astaxanthin (ASX), a red carotenoid pigment especially found in seafood, has been recognized in the scientific literature as a potential nutraceutical due to its antioxidant, anti-inflammatory, and neurotrophic properties. Therefore, scientists are currently exploring whether this promising nutrient can increase the well-known benefits of exercise on health and disease prevention. Hence, the present review aimed to compile and summarize the current scientific evidence for ASX supplementation in association with exercise regimes, and evaluate the additive or synergistic effects on physiological functions and health when both interventions are combined. The new insights into the combination paradigm of exercise and nutritional supplementation raise awareness of the importance of integrative studies, particularly for future research directions in the field of health and sports nutrition science.
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Ademowo OS, Dias IHK, Diaz-Sanchez L, Sanchez-Aranguren L, Stahl W, Griffiths HR. Partial Mitigation of Oxidized Phospholipid-Mediated Mitochondrial Dysfunction in Neuronal Cells by Oxocarotenoids. J Alzheimers Dis 2021; 74:113-126. [PMID: 31985464 DOI: 10.3233/jad-190923] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Mitochondria are important (patho)physiological sources of reactive oxygen species (ROS) that mediate mitochondrial dysfunction and phospholipid oxidation; an increase in mitochondrial content of oxidized phospholipid (OxPL) associates with cell death. Previously we showed that the circulating OxPL 1-palmitoyl-2-(5'-oxo-valeroyl)-sn-glycero-3-phosphocholine (POVPC) increases in patients with Alzheimer's disease (AD), and associates with lower plasma antioxidant oxocarotenoids, zeaxanthin, and lutein. Since oxocarotenoids are metabolized in mitochondria, we propose that during AD, lower concentrations of mitochondrial zeaxanthin and lutein may result in greater phospholipid oxidation and predispose to neurodegeneration. Here, we have investigated whether non-toxic POVPC concentrations impair mitochondrial metabolism in differentiated (d)SH-SY5Y neuronal cells and whether there is any protective role for oxocarotenoids against mitochondrial dysfunction. After 24 hours, glutathione (GSH) concentration was lower in neuronal cells exposed to POVPC (1-20 μM) compared with vehicle control without loss of viability compared to control. However, mitochondrial ROS production (determined by MitoSOX oxidation) was increased by 50% only after 20 μM POVPC. Following delivery of lutein (0.1-1 μM) and zeaxanthin (0.5-5 μM) over 24 hours in vitro, oxocarotenoid recovery from dSH-SY5Y cells was > 50%. Co-incubation with oxocarotenoids prevented loss of GSH after 1 μM but not 20 μM POVPC, whereas the increase in ROS production induced by 20 μM POVPC was prevented by lutein and zeaxanthin. Mitochondrial uncoupling increases and ATP production is inhibited by 20 μM but not 1 μM POVPC; carotenoids protected against uncoupling although did not restore ATP production. In summary, 20 μM POVPC induced loss of GSH and a mitochondrial bioenergetic deficit in neuronal cells that was not mitigated by oxocarotenoids.
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Affiliation(s)
- Opeyemi S Ademowo
- Aston Medical Research Institute, Aston Medical School, Aston University, Birmingham, UK
| | - Irundika H K Dias
- Aston Medical Research Institute, Aston Medical School, Aston University, Birmingham, UK
| | - Lorena Diaz-Sanchez
- Aston Medical Research Institute, Aston Medical School, Aston University, Birmingham, UK
| | | | - Wilhelm Stahl
- Institute of Biochemistry and Molecular Biology 1, Faculty of Medicine, Heinrich-Heine-University Dusseldorf, Dusseldorf, Germany
| | - Helen R Griffiths
- Aston Medical Research Institute, Aston Medical School, Aston University, Birmingham, UK.,Faculty of Health and Medical Sciences, University of Surrey, Stag Hill, Guildford, UK
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Natural Compounds in Glioblastoma Therapy: Preclinical Insights, Mechanistic Pathways, and Outlook. Cancers (Basel) 2021; 13:cancers13102317. [PMID: 34065960 PMCID: PMC8150927 DOI: 10.3390/cancers13102317] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 05/07/2021] [Accepted: 05/07/2021] [Indexed: 02/07/2023] Open
Abstract
Simple Summary Glioblastoma (GBM) is a tumor of the brain or spinal cord with poor clinical prognosis. Current interventions, such as chemotherapy and surgical tumor resection, are constrained by tumor invasion and cancer drug resistance. Dietary natural substances are therefore evaluated for their potential as agents in GBM treatment. Various substances found in fruits, vegetables, and other natural products restrict tumor growth and induce GBM cell death. These preclinical effects are promising but remain constrained by natural substances’ varying pharmacological properties. While many of the reviewed substances are available as over-the-counter supplements, their anti-GBM efficacy should be corroborated by clinical trials moving forward. Abstract Glioblastoma (GBM) is an aggressive, often fatal astrocyte-derived tumor of the central nervous system. Conventional medical and surgical interventions have greatly improved survival rates; however, tumor heterogeneity, invasiveness, and chemotherapeutic resistance continue to pose clinical challenges. As such, dietary natural substances—an integral component of the lifestyle medicine approach to chronic diseases—are examined as potential chemotherapeutic agents. These heterogenous substances exert anti-GBM effects by upregulating apoptosis and autophagy, inducing cell cycle arrest, interfering with tumor metabolism, and inhibiting proliferation, neuroinflammation, chemoresistance, angiogenesis, and metastasis. Although these beneficial effects are promising, natural substances’ efficacy in GBM is constrained by their bioavailability and blood–brain barrier permeability; various chemical formulations are proposed to improve their pharmacological properties. Many of the reviewed substances are available as over-the-counter dietary supplements, underscoring their viability as lifestyle interventions. However, clinical trials remain necessary to substantiate the in vitro and in vivo properties of natural substances.
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Nutritional cognitive neuroscience of aging: Focus on carotenoids and cognitive frailty. Redox Biol 2021; 44:101996. [PMID: 34090844 PMCID: PMC8212151 DOI: 10.1016/j.redox.2021.101996] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/20/2021] [Accepted: 04/26/2021] [Indexed: 12/15/2022] Open
Abstract
The term „nutritional cognitive neuroscience” was recently established to define a research field focusing on the impact of nutrition on cognition and brain health across the life span. In this overview, we summarize the robust evidence on the role of carotenoids as micronutrients with different biological properties in persons with cognitive (pre)frailty. As neurodegenerative processes during aging occur in a continuum from brain aging to dementia, we propose the name „nutritional cognitive neuroscience of aging“ to define research on the role of nutrition and micronutrients in cognitive frailty. Further studies are warranted which integrate carotenoid interventions in multidomain, personalized lifestyle strategies. Cognitive integrity is an essential element of healthy and active ageing. Oxidative distress is strongly linked to neurodegeneration. Consumption and levels of carotenoids are linked to cognitive frailty. There is conflict of evidence for intervention trials with carotenoids in dementia. Future studies with carotenoids should be within personalized and multidomain strategies.
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Factors Differentiating the Antioxidant Activity of Macular Xanthophylls in the Human Eye Retina. Antioxidants (Basel) 2021; 10:antiox10040601. [PMID: 33919673 PMCID: PMC8070478 DOI: 10.3390/antiox10040601] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 04/01/2021] [Accepted: 04/07/2021] [Indexed: 02/06/2023] Open
Abstract
Macular xanthophylls, which are absorbed from the human diet, accumulate in high concentrations in the human retina, where they efficiently protect against oxidative stress that may lead to retinal damage. In addition, macular xanthophylls are uniquely spatially distributed in the retina. The zeaxanthin concentration (including the lutein metabolite meso-zeaxanthin) is ~9-fold greater than lutein concentration in the central fovea. These numbers do not correlate at all with the dietary intake of xanthophylls, for which there is a dietary zeaxanthin-to-lutein molar ratio of 1:12 to 1:5. The unique spatial distributions of macular xanthophylls—lutein, zeaxanthin, and meso-zeaxanthin—in the retina, which developed during evolution, maximize the protection of the retina provided by these xanthophylls. We will correlate the differences in the spatial distributions of macular xanthophylls with their different antioxidant activities in the retina. Can the major protective function of macular xanthophylls in the retina, namely antioxidant actions, explain their evolutionarily determined, unique spatial distributions? In this review, we will address this question.
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Uppal S, Dergunov SA, Zhang W, Gentleman S, Redmond TM, Pinkhassik E, Poliakov E. Xanthophylls Modulate Palmitoylation of Mammalian β-Carotene Oxygenase 2. Antioxidants (Basel) 2021; 10:antiox10030413. [PMID: 33803144 PMCID: PMC8000801 DOI: 10.3390/antiox10030413] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 03/01/2021] [Accepted: 03/02/2021] [Indexed: 11/16/2022] Open
Abstract
An extensive body of work has documented the antioxidant role of xanthophylls (lutein and zeaxanthin) in human health and specifically how they provide photoprotection in human vision. More recently, evidence is emerging for the transcriptional regulation of antioxidant response by lutein/lutein cleavage products, similar to the role of β-carotene cleavage products in the modulation of retinoic acid receptors. Supplementation with xanthophylls also provides additional benefits for the prevention of age-related macular degeneration (AMD) and attenuation of Alzheimer's disease symptoms. Mammalian β-carotene oxygenase 2 (BCO2) asymmetrically cleaves xanthophylls as well as β-carotene in vitro. We recently demonstrated that mouse BCO2 (mBCO2) is a functionally palmitoylated enzyme and that it loses palmitoylation when cells are treated with β-carotene. The mouse enzyme is the easiest model to study mammalian BCO2 because it has only one isoform, unlike human BCO2 with several major isoforms with various properties. Here, we used the same acyl-RAC methodology and confocal microscopy to elucidate palmitoylation and localization status of mBCO2 in the presence of xanthophylls. We created large unilamellar vesicle-based nanocarriers for the successful delivery of xanthophylls into cells. We demonstrate here that, upon treatment with low micromolar concentration of lutein (0.15 µM), mBCO2 is depalmitoylated and shows partial nuclear localization (38.00 ± 0.04%), while treatment with zeaxanthin (0.45 µM) and violaxanthin (0.6 µM) induces depalmitoylation and protein translocation from mitochondria to a lesser degree (20.00 ± 0.01% and 35.00 ± 0.02%, respectively). Such a difference in the behavior of mBCO2 toward various xanthophylls and its translocation into the nucleus in the presence of various xanthophylls suggests a possible mechanism for transport of lutein/lutein cleavage products to the nucleus to affect transcriptional regulation.
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Affiliation(s)
- Sheetal Uppal
- Laboratory of Retinal Cell & Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA; (S.U.); (S.G.)
| | - Sergey A. Dergunov
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA; (S.A.D.); (W.Z.)
| | - Weiyu Zhang
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA; (S.A.D.); (W.Z.)
| | - Susan Gentleman
- Laboratory of Retinal Cell & Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA; (S.U.); (S.G.)
| | - T. Michael Redmond
- Laboratory of Retinal Cell & Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA; (S.U.); (S.G.)
- Correspondence: (T.M.R.); (E.P.); (E.P.)
| | - Eugene Pinkhassik
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA; (S.A.D.); (W.Z.)
- Correspondence: (T.M.R.); (E.P.); (E.P.)
| | - Eugenia Poliakov
- Laboratory of Retinal Cell & Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA; (S.U.); (S.G.)
- Correspondence: (T.M.R.); (E.P.); (E.P.)
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Lin S, Shen Y. Dietary carotenoids intake and depressive symptoms in US adults, NHANES 2015-2016. J Affect Disord 2021; 282:41-45. [PMID: 33388472 DOI: 10.1016/j.jad.2020.12.098] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/15/2020] [Accepted: 12/24/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND The data for effect of dietary specific carotenoids on depression are limited and controversial. Thus, this study aimed to examine the relationship between dietary carotenoids intakes and the prevalence of depressive symptoms. METHODS In the 2015-2016 United States National Health and Nutrition Examination Survey, 4,105 adults with complete data of dietary intake and assessment of depressive symptoms are enrolled. Dietary intake was assessed through two 24-h dietary recall interviews. Depression symptoms were assessed using the nine-item Patient Health Questionnaire. We used logistic regression to assess the relationship between diet carotenoids intake and the prevalence of depressive symptoms, adjusting for the main potential confounders. In addition, daily dietary carotenoids intake was adjusted for daily total energy intake based on the nutrient density model. RESULTS We found a significant inverse association between dietary beta-cryptoxanthin intake and depressive symptoms, with lowest prevalence in the third tertile (OR: 0.65, 95% CI: 0.47-0.90, p for trend < 0.001). Dose-response analyses revealed that the prevalence of depressive symptoms decreased with increasing intakes of beta-cryptoxanthin when reached the point above 110 ug/1000 Kcal. No such association was found for alpha-carotene, beta-carotene, lycopene, and lutein/zeaxanthin. CONCLUSIONS Increase the intake of beta-cryptoxathin-rich foods might protect from depressive symptoms. Further prospective studies are requested before dietary recommendation.
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Affiliation(s)
- Song Lin
- Department of Clinical Nutrition, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huaian, Jiangsu 223300, China
| | - Yang Shen
- Department of Clinical Nutrition, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huaian, Jiangsu 223300, China.
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Orhan C, Tuzcu M, Gencoglu H, Sahin E, Sahin N, Ozercan IH, Namjoshi T, Srivastava V, Morde A, Rai D, Padigaru M, Sahin K. Different Doses of β-Cryptoxanthin May Secure the Retina from Photooxidative Injury Resulted from Common LED Sources. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6672525. [PMID: 33628377 PMCID: PMC7895591 DOI: 10.1155/2021/6672525] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 01/27/2021] [Accepted: 02/01/2021] [Indexed: 01/01/2023]
Abstract
Retinal damage associated with loss of photoreceptors is a hallmark of eye diseases such as age-related macular degeneration (AMD) and diabetic retinopathy. Potent nutritional antioxidants were previously shown to abate the degenerative process in AMD. β-Cryptoxanthin (BCX) is an essential dietary carotenoid with antioxidant, anti-inflammatory, and provitamin A activity. It is a potential candidate for developing intervention strategies to delay the development/progression of AMD. In the current study, the effect of a novel, highly purified BCX oral formulation on the rat retinal damage model was evaluated. Rats were fed with BCX for four weeks at the doses of 2 and 4 mg/kg body weight in the form of highly bioavailable oil suspension, followed by retinal damage by exposing to the bright light-emitting diode (LED) light (750 lux) for 48 hrs. Animals were sacrificed after 48 hours, and eyes and blood samples were collected and analyzed. BCX supplementations (2 and 4 mg/kg) showed improvements in the visual condition as demonstrated by histopathology of the retina and measured parameters such as total retinal thickness and outer nuclear layer thickness. BCX supplementation helped reduce the burden of oxidative stress as seen by decreased serum and retinal tissue levels of malondialdehyde (MDA) and restored the antioxidant enzyme activities in BCX groups. Further, BCX supplementation modulated inflammatory markers (IL-1β, IL-6, and NF-κB), apoptotic proteins (Bax, Bcl-2, caspase 3), growth proteins and factors (GAP43, VEGF), glial and neuronal proteins (GFAP, NCAM), and heme oxygenase-1 (HO-1), along with the mitochondrial stress markers (ATF4, ATF6, Grp78, Grp94) in the rat retinal tissue. This study indicates that oral supplementation of BCX exerts a protective effect on light-induced retinal damage in the rats via reducing oxidative stress and inflammation, also protected against mitochondrial DNA damage and cellular death.
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Affiliation(s)
- Cemal Orhan
- Department of Animal Nutrition, Faculty of Veterinary Science, Firat University, Elazig 23119, Turkey
| | - Mehmet Tuzcu
- Division of Biology, Faculty of Science, Firat University, Elazig 23119, Turkey
| | - Hasan Gencoglu
- Division of Biology, Faculty of Science, Firat University, Elazig 23119, Turkey
| | - Emre Sahin
- Department of Animal Nutrition, Faculty of Veterinary Science, Firat University, Elazig 23119, Turkey
| | - Nurhan Sahin
- Department of Animal Nutrition, Faculty of Veterinary Science, Firat University, Elazig 23119, Turkey
| | | | - Tejas Namjoshi
- OmniActive Health Technologies, Biotechnology Park, Pune 411057, India
| | | | - Abhijeet Morde
- OmniActive Health Technologies, Wagle Estate, Thane 400604, India
| | - Deshanie Rai
- OmniActive Health Technologies Inc, Morristown, NJ 07960, USA
| | | | - Kazim Sahin
- Department of Animal Nutrition, Faculty of Veterinary Science, Firat University, Elazig 23119, Turkey
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Silva C, Pinto M, Fernandes C, Benfeito S, Borges F. Antioxidant Therapy and Neurodegenerative Disorders: Lessons From Clinical Trials. SYSTEMS MEDICINE 2021. [DOI: 10.1016/b978-0-12-801238-3.11611-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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Khoshnoudi-Nia S, Forghani Z, Jafari SM. A systematic review and meta-analysis of fish oil encapsulation within different micro/nanocarriers. Crit Rev Food Sci Nutr 2020; 62:2061-2082. [PMID: 33207958 DOI: 10.1080/10408398.2020.1848793] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Fish oil is one of the most important sources of omega 3 polyunsaturated fatty acids (PUFAs), especially eicosapentaenoic acid and docosahexaenoic acid which are the most important PUFAs with several health benefits. However, PUFAs are prone to oxidation and have a poor water solubility which limits the use of fish oils into food formulations. Encapsulation techniques can be applied to overcome these challenges. There is a large number of published micro/nanoencapsulation papers, where each of them contains a limited number of wall materials, feed formulation, encapsulation technique, and storage conditions. Therefore, without systematic evaluation of the data extracted from available studies, the design of functional foods containing fish oil would not be very successful. The objective of this systematic review is a meta-analysis of published researches on the nano/microencapsulation of fish oil. A comprehensive literature search was performed between 1 October and 31 December 2019 with encapsulation, fish oil, and oxidative stability keywords. Overall, 39 qualified articles were selected for the statistical analysis. Based on the technique used for encapsulation, the fish oil-loaded carriers were classified into four main groups: (a) spray-dried particles; (b) freeze-dried particles; (c) electrospun fibers and electrosprayed capsules; and (d) other carriers prepared by supercritical antisolvent, gelation, liposomes, spray-freeze drying, and transglutaminase catalyzed cross-linking. The three most frequent methods applied for fish oil encapsulation were spray drying (42.86%), freeze drying (21.43%), and electrohydrodynamic (19.04%) methods, respectively. Averagely, the best encapsulation efficiency was obtained for electrohydrodynamic processes. Also, the combination of polysaccharide-protein based wall materials provided the best performance in terms of fish oil encapsulation efficiency.
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Affiliation(s)
- Sara Khoshnoudi-Nia
- Seafood Processing Research Group, School of Agriculture, Shiraz University, Shiraz, Iran
| | - Zahra Forghani
- Department Food Science and Technology, School of Agriculture, Shiraz University, Shiraz, Iran
| | - Seid Mahdi Jafari
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
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Mostofian B, Johnson QR, Smith JC, Cheng X. Carotenoids promote lateral packing and condensation of lipid membranes. Phys Chem Chem Phys 2020; 22:12281-12293. [PMID: 32432296 DOI: 10.1039/d0cp01031f] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Carotenoids are pigment molecules that protect biomembranes against degradation and may be involved in the formation of functional bacterial membrane microdomains. Little is known on whether different types of carotenoids have different effects on the membrane or if there is any concentration dependence of these effects. In this work, we present results from molecular dynamics simulations of phospholipid bilayers containing different amounts of either β-carotene or zeaxanthin. Both β-carotene and zeaxanthin show the ability to laterally condense the membrane lipids and reduce their inter-leaflet interactions. With increasing concentrations, both carotenoids increase the bilayer thickness and rigidity. The results reveal that carotenoids have similar effects to cholesterol on regulating the behavior of fluid-phase membranes, suggesting that they could function as sterol substitutes and confirming their potential role in the formation of functional membrane domains.
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Affiliation(s)
- Barmak Mostofian
- Center for Molecular Biophysics, Oak Ridge National Lab, Oak Ridge, TN 37830, USA.
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29
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Widomska J, SanGiovanni JP, Subczynski WK. Why is Zeaxanthin the Most Concentrated Xanthophyll in the Central Fovea? Nutrients 2020; 12:nu12051333. [PMID: 32392888 PMCID: PMC7284714 DOI: 10.3390/nu12051333] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/04/2020] [Accepted: 05/05/2020] [Indexed: 12/17/2022] Open
Abstract
Diet-based xanthophylls (zeaxanthin and lutein) are conditionally essential polar carotenoids preferentially accreted in high concentrations (1 mM) to the central retina, where they have the capacity to impart unique physiologically significant biophysical biochemical properties implicated in cell function, rescue, and survival. Macular xanthophylls interact with membrane-bound proteins and lipids to absorb/attenuate light energy, modulate oxidative stress and redox balance, and influence signal transduction cascades implicated in the pathophysiology of age-related macular degeneration. There is exclusive transport, sequestration, and appreciable bioamplification of macular xanthophylls from the circulating carotenoid pool to the retina and within the retina to regions required for high-resolution sensory processing. The distribution of diet-based macular xanthophylls and the lutein metabolite meso-zeaxanthin varies considerably by retinal eccentricity. Zeaxanthin concentrations are 2.5-fold higher than lutein in the cone-dense central fovea. This is an ~20-fold increase in the molar ratio relative to eccentric retinal regions with biochemically detectable macular xanthophylls. In this review, we discuss how the differences in the specific properties of lutein and zeaxanthin could help explain the preferential accumulation of zeaxanthin in the most vulnerable region of the macula.
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Affiliation(s)
- Justyna Widomska
- Department of Biophysics, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland
- Correspondence: (J.W.); (J.P.S.); Tel.: 48-81448-6333 (J.W.)
| | - John Paul SanGiovanni
- Department of Nutritional Sciences, The University of Arizona, 1657 East Helen Street, Tucson, AZ 85721, USA
- Correspondence: (J.W.); (J.P.S.); Tel.: 48-81448-6333 (J.W.)
| | - Witold K. Subczynski
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA;
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Browne D, Williams MA, Maxwell AP, McGuinness B, Passmore P, Silvestri G, Woodside JV, McKay GJ. Serum xanthophyll carotenoids are associated with estimated glomerular filtration rate in an aged cohort. Sci Rep 2019; 9:17068. [PMID: 31745176 PMCID: PMC6864050 DOI: 10.1038/s41598-019-53674-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 11/04/2019] [Indexed: 02/06/2023] Open
Abstract
Progressive renal decline is associated with increasing oxidative stress. However, the majority of studies have investigated endogenous antioxidants in predominantly advanced stages of kidney disease. Many traditional risk factors associated with renal dysfunction have been linked with cognitive decline as the kidneys and brain share comparable anatomic and haemodynamic characteristics that leave them susceptible to common pathogenic mechanisms. The objective of this study was to examine serum dietary antioxidants and their association with renal function characterised by estimated glomerular filtration rate (eGFR) in a cross-sectional analysis of 570 participants. High performance liquid chromatography quantified serum levels of retinol, α-tocopherol, γ-tocopherol and six carotenoids (α-carotene, β-carotene, β-cryptoxanthin, lutein, lycopene and zeaxanthin) in participants. Multiple regression analyses were used to evaluate associations while adjusting for potential confounders. A sensitivity analysis was performed in cognitively-intact participants only. Serum levels of the xanthophyll carotenoid lutein were positively associated with eGFR in analyses adjusted for age (years), gender, smoking, APOE4 status and Alzheimer’s disease. Retinol was inversely associated with eGFR, although was no longer significant in the smaller sensitivity analysis. Our findings identify significant associations between the xanthophyll carotenoids and eGFR. Further investigations are required to confirm these findings.
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Affiliation(s)
- Declan Browne
- Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - Michael A Williams
- Centre for Medical Education, Queen's University of Belfast, Belfast, UK
| | | | | | - Peter Passmore
- Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - Giuliana Silvestri
- Centre for Experimental Medicine, Queen's University of Belfast, Belfast, UK
| | - Jayne V Woodside
- Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - Gareth J McKay
- Centre for Public Health, Queen's University Belfast, Belfast, UK.
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31
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Mullan K, Cardwell CR, McGuinness B, Woodside JV, McKay GJ. Plasma Antioxidant Status in Patients with Alzheimer's Disease and Cognitively Intact Elderly: A Meta-Analysis of Case-Control Studies. J Alzheimers Dis 2019; 62:305-317. [PMID: 29439339 DOI: 10.3233/jad-170758] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Serum antioxidants may afford neuroprotection against Alzheimer's disease (AD) via correction of the pro-oxidative imbalance but findings reported have been inconsistent. We compared the pooled mean difference in serum levels of ten dietary antioxidants between patients with AD and cognitively intact controls from 52 studies in meta-analyses using random-effects models. Patients with AD had significantly lower plasma levels of α-carotene, β-carotene, lycopene, lutein, vitamin A, C, and E, and uric acid. No significant difference was observed for plasma levels of β-cryptoxanthin and zeaxanthin. Considerable heterogeneity was detected across studies. The lower serum levels of dietary antioxidants from the carotene and vitamin subclasses observed in individuals with AD suggest reduced systemic availability of these subclasses in this prevalent form of dementia. To our knowledge, these are the first meta-analyses to demonstrate lower serum lycopene and to evaluate β-cryptoxanthin, lutein, and zeaxanthin levels in AD. In light of the significant heterogeneity detected across studies, caution should be exercised in the interpretation of the data and therapeutic intervention approaches considered through supplementation measures. Our data may better inform interventions to improve antioxidant status in a condition of major public health importance.
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Affiliation(s)
- Kathryn Mullan
- Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - Chris R Cardwell
- Centre for Public Health, Queen's University Belfast, Belfast, UK
| | | | - Jayne V Woodside
- Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - Gareth J McKay
- Centre for Public Health, Queen's University Belfast, Belfast, UK
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32
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de Koning-Backus AP, Buitendijk GH, Kiefte-de Jong JC, Colijn JM, Hofman A, Vingerling JR, Haverkort EB, Franco OH, Klaver CC. Intake of Vegetables, Fruit, and Fish is Beneficial for Age-Related Macular Degeneration. Am J Ophthalmol 2019; 198:70-79. [PMID: 30312575 DOI: 10.1016/j.ajo.2018.09.036] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 09/27/2018] [Accepted: 09/28/2018] [Indexed: 12/26/2022]
Abstract
PURPOSE What patients should eat to reduce their risk of age-related macular degeneration (AMD) is still unclear. We investigated the effect of a diet recommended by Health Councils on AMD. DESIGN Prospective population-based cohort study. METHODS Four thousand two hundred and two participants from the Rotterdam Study ≥55 years of age who were free of AMD at baseline were included and followed up for 9.1 ± 5.8 years. Incident AMD was graded on fundus photographs. Dietary data were collected using a validated 170-item food frequency questionnaire, and food intakes were categorized into food patterns based on guidelines from Health Councils. Associations with incident AMD were analyzed using Cox proportional hazards models that were adjusted for age, sex, total energy intake, smoking, body mass index, hypertension, education, and income. RESULTS Seven hundred fifty-four people developed incident AMD. Intake of the recommended amounts of vegetables (≥200 g/day), fruit (2×/day), and fish (2×/week) were 30.6%, 54.9%, and 12.5%, respectively. In particular, the intake of fish (2×/week) decreased the risk of incident AMD (hazard ratio 0.76 [95% confidence interval 0.60-0.97]). Intake of the recommended amounts of all 3 food groups was only 3.7%, but adherence to this pattern showed a further reduction of the risk of incident AMD (hazard ratio 0.58 [95% confidence interval 0.36-0.93]). Younger age, higher income, and not smoking were associated with this food pattern, but the risk-lowering effects remained significant after additional adjustment for these factors. CONCLUSION A diet of 200 grams per day of vegetables, fruit two times per day, and fish two times per week is associated with a significantly reduced risk of AMD.
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Petyaev IM, Zigangirova NA, Tsibezov VV, Morgunova EY, Bondareva NE, Kyle NH, Bashmakov YK. Association with Monoclonal Antibody Promotes Intracellular Delivery of Lycopene. Monoclon Antib Immunodiagn Immunother 2018; 37:147-152. [PMID: 29901419 DOI: 10.1089/mab.2018.0010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Incubation of B10.MLM cells, a cell line of alveolar macrophages, with lycopene, a carotenoid, leads to an increase of lycopene content in their microsomal fraction. That increase was higher and developed faster when the cells were incubated with immune complexes formed by lycopene and mAb 6B9 (L-6B9 mAb), a monoclonal hapten-specific antibody raised against lycopene, as compared with dimethyl sulfoxide (DMSO)-dissolved lycopene (DMSO-L). Moreover, incubation of B10.MLM cells with L-6B9 mAb complexes was accompanied by more efficient accumulation of lipid droplets in the cultured cells and more significant inhibition of mRNA for 3-hydroxy-3-methylglutaryl-coenzyme (HMG-CoA) reductase, a rate-limiting enzyme of cholesterol biosynthesis known to be targeted by lycopene. Additionally, there was a better inhibition of Chlamydia trachomatis infection in B10.MLM cells infected with the pathogen and incubated thereafter with L-6B9 mAb complexes as compared with DMSO-L. Altogether, the results suggest that association with monoclonal antibody promotes intracellular delivery of lycopene in cultured cells possibly through Fc-receptor mediated uptake.
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Affiliation(s)
- Ivan M Petyaev
- 1 Research and Development, Lycotec Ltd. , Cambridge, United Kingdom
| | - Naylia A Zigangirova
- 2 Department of Medical Microbiology, Gamaleya Federal Research Center of Epidemiology and Microbiology , Ministry of Health, Moscow, Russia
| | - Valeriy V Tsibezov
- 2 Department of Medical Microbiology, Gamaleya Federal Research Center of Epidemiology and Microbiology , Ministry of Health, Moscow, Russia
| | - Elena Y Morgunova
- 2 Department of Medical Microbiology, Gamaleya Federal Research Center of Epidemiology and Microbiology , Ministry of Health, Moscow, Russia
| | - Natalia E Bondareva
- 2 Department of Medical Microbiology, Gamaleya Federal Research Center of Epidemiology and Microbiology , Ministry of Health, Moscow, Russia
| | - Nigel H Kyle
- 1 Research and Development, Lycotec Ltd. , Cambridge, United Kingdom
| | - Yuriy K Bashmakov
- 1 Research and Development, Lycotec Ltd. , Cambridge, United Kingdom
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Recent Advances in Studies on the Therapeutic Potential of Dietary Carotenoids in Neurodegenerative Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:4120458. [PMID: 29849893 PMCID: PMC5926482 DOI: 10.1155/2018/4120458] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 02/22/2018] [Accepted: 03/13/2018] [Indexed: 12/14/2022]
Abstract
Carotenoids, symmetrical tetraterpenes with a linear C40 hydrocarbon backbone, are natural pigment molecules produced by plants, algae, and fungi. Carotenoids have important functions in the organisms (including animals) that obtain them from food. Due to their characteristic structure, carotenoids have bioactive properties, such as antioxidant, anti-inflammatory, and autophagy-modulatory activities. Given the protective function of carotenoids, their levels in the human body have been significantly associated with the treatment and prevention of various diseases, including neurodegenerative diseases. In this paper, we review the latest studies on the effects of carotenoids on neurodegenerative diseases in humans. Furthermore, animal and cellular model studies on the beneficial effects of carotenoids on neurodegeneration are also reviewed. Finally, we discuss the possible mechanisms and limitations of carotenoids in the treatment and prevention of neurological diseases.
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Johnson QR, Mostofian B, Fuente Gomez G, Smith JC, Cheng X. Effects of carotenoids on lipid bilayers. Phys Chem Chem Phys 2018; 20:3795-3804. [PMID: 29349456 DOI: 10.1039/c7cp07126d] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carotenoids have been found to be important in improving the integrity of biomembranes in eukaryotes. However, the molecular details of how carotenoids modulate the physical properties of biomembranes are unknown. To this end, we have conducted a series of molecular dynamics simulations of different biologically-relevant membranes in the presence of carotenoids. The carotenoid effect on the membrane was found to be specific to the identity of the carotenoid and the composition of the membrane itself. Therefore, different classes of carotenoids produce a different effect on the membrane, and different membrane phases are affected differently by carotenoids. It is apparent from our data that carotenoids do trigger the bilayer to become thinner. The mechanism by which this occurs depends on two competing factors, the ability of the lipid tails of opposing monolayers to either (1) compress or (2) interdigitate as the bilayer condenses. Indeed, carotenoids directly influence the physical properties via these two mechanisms, thus compacting the bilayer. However, the degree to which these competing mechanisms are utilized depends on the bilayer phase and the carotenoid identity.
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Affiliation(s)
- Quentin R Johnson
- National Institute for Mathematical and Biological Synthesis, University of Tennessee, Knoxville, TN 37996, USA
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36
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Grudzinski W, Nierzwicki L, Welc R, Reszczynska E, Luchowski R, Czub J, Gruszecki WI. Localization and Orientation of Xanthophylls in a Lipid Bilayer. Sci Rep 2017; 7:9619. [PMID: 28852075 PMCID: PMC5575131 DOI: 10.1038/s41598-017-10183-7] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 08/07/2017] [Indexed: 02/05/2023] Open
Abstract
Xanthophylls (polar carotenoids) play diverse biological roles, among which are modulation of the physical properties of lipid membranes and protection of biomembranes against oxidative damage. Molecular mechanisms underlying these functions are intimately related to the localization and orientation of xanthophyll molecules in lipid membranes. In the present work, we address the problem of localization and orientation of two xanthophylls present in the photosynthetic apparatus of plants and in the retina of the human eye, zeaxanthin and lutein, in a single lipid bilayer membrane formed with dimyristoylphosphatidylcholine. By using fluorescence microscopic analysis and Raman imaging of giant unilamellar vesicles, as well as molecular dynamics simulations, we show that lutein and zeaxanthin adopt a very similar transmembrane orientation within a lipid membrane. In experimental and computational approach, the average tilt angle of xanthophylls relative to the membrane normal is independently found to be ~40 deg, and results from hydrophobic mismatch between the membrane thickness and the distance between the terminal hydroxyl groups of the xanthophylls. Consequences of such a localization and orientation for biological activity of xanthophylls are discussed.
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Affiliation(s)
- Wojciech Grudzinski
- Department of Biophysics, Institute of Physics, Maria Curie-Sklodowska University, 20-031, Lublin, Poland
| | - Lukasz Nierzwicki
- Department of Physical Chemistry, Gdansk University of Technology, Narutowicza 11/12, 80-233, Gdansk, Poland
| | - Renata Welc
- Department of Biophysics, Institute of Physics, Maria Curie-Sklodowska University, 20-031, Lublin, Poland
| | - Emilia Reszczynska
- Department of Biophysics, Institute of Physics, Maria Curie-Sklodowska University, 20-031, Lublin, Poland
| | - Rafal Luchowski
- Department of Biophysics, Institute of Physics, Maria Curie-Sklodowska University, 20-031, Lublin, Poland
| | - Jacek Czub
- Department of Physical Chemistry, Gdansk University of Technology, Narutowicza 11/12, 80-233, Gdansk, Poland.
| | - Wieslaw I Gruszecki
- Department of Biophysics, Institute of Physics, Maria Curie-Sklodowska University, 20-031, Lublin, Poland.
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Grether-Beck S, Marini A, Jaenicke T, Stahl W, Krutmann J. Molecular evidence that oral supplementation with lycopene or lutein protects human skin against ultraviolet radiation: results from a double-blinded, placebo-controlled, crossover study. Br J Dermatol 2017; 176:1231-1240. [PMID: 27662341 DOI: 10.1111/bjd.15080] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND Increasing evidence suggests photoprotection by oral supplementation with β-carotene and lycopene. OBJECTIVES To examine the capacity of lycopene-rich tomato nutrient complex (TNC) and lutein, to protect against ultraviolet (UV)A/B and UVA1 radiation at a molecular level. METHODS In a placebo-controlled, double-blinded, randomized, crossover study two active treatments containing either TNC or lutein were assessed for their capacity to decrease the expression of UVA1 the radiation-inducible genes HO1, ICAM1 and MMP1. Sixty-five healthy volunteers were allocated to four treatment groups and subjected to a 2-week washout phase, followed by two 12-week treatment phases separated by another 2 weeks of washout. Volunteers started either with active treatment and were then switched to placebo, or vice versa. At the beginning and at the end of each treatment phase skin was irradiated and 24 h later biopsies were taken from untreated, UVA/B- and UVA1-irradiated skin for subsequent reverse transcriptase polymerase chain reaction analysis of gene expression. Moreover, blood samples were taken after the washout and the treatment phases for assessment of carotenoids. RESULTS TNC completely inhibited UVA1- and UVA/B-induced upregulation of heme-oxygenase 1, intercellular adhesion molecule 1 and matrix metallopeptidase 1 mRNA, no matter the sequence (anova, P < 0·05). In contrast, lutein provided complete protection if it was taken in the first period but showed significantly smaller effects in the second sequence compared with TNC. CONCLUSIONS Assuming the role of these genes as indicators of oxidative stress, photodermatoses and photoageing, these results might indicate that TNC and lutein could protect against solar radiation-induced health damage.
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Affiliation(s)
- S Grether-Beck
- IUF - Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - A Marini
- IUF - Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - T Jaenicke
- IUF - Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - W Stahl
- Institute of Biochemistry and Molecular Biology I, Faculty of Medicine, Heinrich Heine University, Düsseldorf, Germany
| | - J Krutmann
- IUF - Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
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38
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Zaheer K. Hen egg carotenoids (lutein and zeaxanthin) and nutritional impacts on human health: a review. CYTA - JOURNAL OF FOOD 2017. [DOI: 10.1080/19476337.2016.1266033] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- K. Zaheer
- Health and Nutrition, Toronto, ON, Canada
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39
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Zamroziewicz MK, Paul EJ, Zwilling CE, Johnson EJ, Kuchan MJ, Cohen NJ, Barbey AK. Parahippocampal Cortex Mediates the Relationship between Lutein and Crystallized Intelligence in Healthy, Older Adults. Front Aging Neurosci 2016; 8:297. [PMID: 27999541 PMCID: PMC5138207 DOI: 10.3389/fnagi.2016.00297] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 11/22/2016] [Indexed: 11/13/2022] Open
Abstract
Introduction: Although, diet has a substantial influence on the aging brain, the relationship between dietary nutrients and aspects of brain health remains unclear. This study examines the neural mechanisms that mediate the relationship between a carotenoid important for brain health across the lifespan, lutein, and crystallized intelligence in cognitively intact older adults. We hypothesized that higher serum levels of lutein are associated with better performance on a task of crystallized intelligence, and that this relationship is mediated by gray matter structure of regions within the temporal cortex. This investigation aims to contribute to a growing line of evidence, which suggests that particular nutrients may slow or prevent aspects of cognitive decline by targeting specific features of brain aging. Methods: We examined 76 cognitively intact adults between the ages of 65 and 75 to investigate the relationship between serum lutein, tests of crystallized intelligence (measured by the Wechsler Abbreviated Scale of Intelligence), and gray matter volume of regions within the temporal cortex. A three-step mediation analysis was implemented using multivariate linear regressions to control for age, sex, education, income, depression status, and body mass index. Results: The mediation analysis revealed that gray matter thickness of one region within the temporal cortex, the right parahippocampal cortex (Brodmann's Area 34), partially mediates the relationship between serum lutein and crystallized intelligence. Conclusion: These results suggest that the parahippocampal cortex acts as a mediator of the relationship between serum lutein and crystallized intelligence in cognitively intact older adults. Prior findings substantiate the individual relationships reported within the mediation, specifically the links between (i) serum lutein and temporal cortex structure, (ii) serum lutein and crystallized intelligence, and (iii) parahippocampal cortex structure and crystallized intelligence. This report demonstrates a novel structural mediation between lutein status and crystallized intelligence, and therefore provides further evidence that specific nutrients may slow or prevent features of cognitive decline by hindering particular aspects of brain aging. Future work should examine the potential mechanisms underlying this mediation, including the antioxidant, anti-inflammatory, and membrane modulating properties of lutein.
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Affiliation(s)
- Marta K Zamroziewicz
- Decision Neuroscience Laboratory, University of Illinois Urbana-ChampaignUrbana, IL, USA; Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-ChampaignUrbana, IL, USA; Neuroscience Program, University of Illinois Urbana-ChampaignUrbana, IL, USA
| | - Erick J Paul
- Decision Neuroscience Laboratory, University of Illinois Urbana-ChampaignUrbana, IL, USA; Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-ChampaignUrbana, IL, USA
| | - Chris E Zwilling
- Decision Neuroscience Laboratory, University of Illinois Urbana-ChampaignUrbana, IL, USA; Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-ChampaignUrbana, IL, USA
| | - Elizabeth J Johnson
- Jean Mayer USDA Human Nutrition Center on Aging, Tufts University Boston, MA USA
| | - Matthew J Kuchan
- Research, Scientific and Medical Affairs, Abbott Nutrition Columbus, OH, USA
| | - Neal J Cohen
- Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-ChampaignUrbana, IL, USA; Neuroscience Program, University of Illinois Urbana-ChampaignUrbana, IL, USA; Department of Psychology, University of Illinois Urbana-ChampaignUrbana, IL, USA; Carle Neuroscience Institute, Carle Foundation HospitalUrbana, IL, USA
| | - Aron K Barbey
- Decision Neuroscience Laboratory, University of Illinois Urbana-ChampaignUrbana, IL, USA; Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-ChampaignUrbana, IL, USA; Neuroscience Program, University of Illinois Urbana-ChampaignUrbana, IL, USA; Department of Psychology, University of Illinois Urbana-ChampaignUrbana, IL, USA; Carle Neuroscience Institute, Carle Foundation HospitalUrbana, IL, USA; Department of Internal Medicine, University of Illinois Urbana-ChampaignUrbana, IL, USA; Department of Speech and Hearing Science, University of Illinois Urbana-ChampaignUrbana, IL, USA; Institute for Genomic Biology, University of Illinois Urbana-ChampaignChampaign, IL, USA
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