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Jilcott Pitts SB, Wu Q, Moran NE, Laska MN, Harnack L. Examining Potential Modifiers of Human Skin and Plasma Carotenoid Responses in a Randomized Trial of a Carotenoid-Containing Juice Intervention. J Nutr 2023; 153:3287-3294. [PMID: 37742797 PMCID: PMC10687613 DOI: 10.1016/j.tjnut.2023.09.014] [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: 06/16/2023] [Revised: 09/11/2023] [Accepted: 09/19/2023] [Indexed: 09/26/2023] Open
Abstract
BACKGROUND Skin carotenoid measurements are emerging as a valid and reliable indicator of fruit and vegetable intake and carotenoid intake. However, little is known about the extent to which skin carotenoid responsivity to dietary changes differs based on demographic and physiologic characteristics. OBJECTIVES This study examined potential effect modifiers of skin carotenoid and plasma carotenoid responses to a carotenoid-rich juice intervention. METHODS We leveraged data from 2 arms of a 3-site randomized controlled trial of a carotenoid-containing juice intervention (moderate dose = 6 ounces juice, 4 mg total carotenoids/d, high dose = 12 ounces juice, 8 mg total carotenoids/d) (n = 106) to examine effect modification by age, self-categorized race/ethnicity, biological sex, baseline body fat, body mass index, skin melanin, skin hemoglobin, skin hemoglobin saturation, skin coloration, sun exposure, and baseline intake of carotenoids from foods. Skin carotenoid concentrations were assessed using pressure-mediated reflection spectroscopy (Veggie Meter), and plasma carotenoid concentrations were measured using high-performance liquid chromatography. RESULTS In bivariate analyses, among the high-dose group (8 mg/d), those of older age had lower skin carotenoid responsiveness than their younger counterparts, and those with greater hemoglobin saturation and lighter skin had higher skin carotenoid score responsiveness. In the moderate-dose group (4 mg/d), participants from one site had greater plasma carotenoid responsiveness than those from other sites. In multivariate analyses, participants with higher baseline skin carotenoids had smaller skin carotenoid responses to both moderate and high doses. CONCLUSIONS Changes in skin carotenoid scores in response to interventions to increase fruit and vegetable intake should be interpreted in the context of baseline skin carotenoid scores, but other variables (e.g., self-categorized race/ethnicity, biological sex, baseline body fat, body mass index, skin melanin, and sun exposure) do not significantly modify the effect of carotenoid intake on changes in skin carotenoid scores. This trial was registered at clinicaltrials.gov as NCT04056624.
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Affiliation(s)
- Stephanie B Jilcott Pitts
- Department of Public Health, Brody School of Medicine, East Carolina University, Greenville, NC, United States.
| | - Qiang Wu
- Department of Public Health, Brody School of Medicine, East Carolina University, Greenville, NC, United States
| | - Nancy E Moran
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics-Nutrition, Baylor College of Medicine, Houston, TX, United States
| | - Melissa N Laska
- Healthy Weight Research Center, Division of Epidemiology & Community Health, University of Minnesota School of Public Health, Minneapolis, MN, United States
| | - Lisa Harnack
- Nutrition Coordinating Center, Division of Epidemiology and Community Health, University of Minnesota School of Public Health, Minneapolis, MN, United States
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Liao Y, Shi H, Han T, Jiang D, Lu B, Shi G, Zhu C, Li G. Pigment Identification and Gene Expression Analysis during Erythrophore Development in Spotted Scat ( Scatophagus argus) Larvae. Int J Mol Sci 2023; 24:15356. [PMID: 37895036 PMCID: PMC10607709 DOI: 10.3390/ijms242015356] [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: 09/02/2023] [Revised: 10/11/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
Red coloration is considered an economically important trait in some fish species, including spotted scat, a marine aquaculture fish. Erythrophores are gradually covered by melanophores from the embryonic stage. Despite studies of black spot formation and melanophore coloration in the species, little is known about erythrophore development, which is responsible for red coloration. 1-phenyl 2-thiourea (PTU) is a tyrosinase inhibitor commonly used to inhibit melanogenesis and contribute to the visualization of embryonic development. In this study, spotted scat embryos were treated with 0.003% PTU from 0 to 72 h post fertilization (hpf) to inhibit melanin. Erythrophores were clearly observed during the embryonic stage from 14 to 72 hpf, showing an initial increase (14 to 36 hpf), followed by a gradual decrease (36 to 72 hpf). The number and size of erythrophores at 36 hpf were larger than those at 24 and 72 hpf. At 36 hpf, LC-MS and absorbance spectrophotometry revealed that the carotenoid content was eight times higher than the pteridine content, and β-carotene and lutein were the main pigments related to red coloration in spotted scat larvae. Compared with their expression in the normal hatching group, rlbp1b, rbp1.1, and rpe65a related to retinol metabolism and soat2 and apoa1 related to steroid hormone biosynthesis and steroid biosynthesis were significantly up-regulated in the PTU group, and rh2 associated with phototransduction was significantly down-regulated. By qRT-PCR, the expression levels of genes involved in carotenoid metabolism (scarb1, plin6, plin2, apoda, bco1, and rep65a), pteridine synthesis (gch2), and chromatophore differentiation (slc2a15b and csf1ra) were significantly higher at 36 hpf than at 24 hpf and 72 hpf, except for bco1. These gene expression profiles were consistent with the developmental changes of erythrophores. These findings provide insights into pigment cell differentiation and gene function in the regulation of red coloration and contribute to selective breeding programs for ornamental aquatic animals.
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Affiliation(s)
- Yongguan Liao
- Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China; (Y.L.); (H.S.); (T.H.); (D.J.); (G.S.); (C.Z.)
| | - Hongjuan Shi
- Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China; (Y.L.); (H.S.); (T.H.); (D.J.); (G.S.); (C.Z.)
| | - Tong Han
- Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China; (Y.L.); (H.S.); (T.H.); (D.J.); (G.S.); (C.Z.)
| | - Dongneng Jiang
- Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China; (Y.L.); (H.S.); (T.H.); (D.J.); (G.S.); (C.Z.)
| | - Baoyue Lu
- School of Life Sciences, Guangzhou University, Guangzhou 510006, China;
| | - Gang Shi
- Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China; (Y.L.); (H.S.); (T.H.); (D.J.); (G.S.); (C.Z.)
| | - Chunhua Zhu
- Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China; (Y.L.); (H.S.); (T.H.); (D.J.); (G.S.); (C.Z.)
| | - Guangli Li
- Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China; (Y.L.); (H.S.); (T.H.); (D.J.); (G.S.); (C.Z.)
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Madore MP, Hwang JE, Park JY, Ahn S, Joung H, Chun OK. A Narrative Review of Factors Associated with Skin Carotenoid Levels. Nutrients 2023; 15:2156. [PMID: 37432294 DOI: 10.3390/nu15092156] [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: 04/01/2023] [Revised: 04/26/2023] [Accepted: 04/28/2023] [Indexed: 07/12/2023] Open
Abstract
Despite consistent evidence that greater consumption of fruits and vegetables (FV) is associated with significant reductions in chronic disease morbidity and mortality, the majority of adults in the United States consume less than the amounts recommended by public health agencies. As such, there is a critical need to design and implement effective programs and policies to facilitate increases in FV consumption for the prevention of these diseases. To accomplish this, an accurate, inexpensive, and convenient method for estimating the dietary FV intake is required. A promising method for quantifying the FV intake via proxy that has gained interest in recent years is the measurement of skin carotenoid levels via spectroscopy-based devices. However, there exist certain dietary and non-dietary factors that may affect the skin carotenoid levels independently of the dietary intake of carotenoids. In order to validate the ability of this method to accurately estimate the FV intake among diverse demographics, these factors must be identified and taken into consideration. Therefore, this narrative review seeks to summarize the available research on factors that may affect the skin carotenoid levels, determine current gaps in knowledge, and provide guidance for future research efforts seeking to validate spectroscopy-measured skin carotenoid levels as a means of accurately estimating the FV intake among various populations.
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Affiliation(s)
- Matthew P Madore
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Jeong-Eun Hwang
- Device Research Center, Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co., Ltd., Suwon 16678, Republic of Korea
- Department of Public Health Science, Graduate School of Public Health, Seoul National University, Seoul 08826, Republic of Korea
| | - Jin-Young Park
- Device Research Center, Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co., Ltd., Suwon 16678, Republic of Korea
| | - Seoeun Ahn
- Institute of Health and Environment, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyojee Joung
- Department of Public Health Science, Graduate School of Public Health, Seoul National University, Seoul 08826, Republic of Korea
- Institute of Health and Environment, Seoul National University, Seoul 08826, Republic of Korea
| | - Ock K Chun
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA
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Variations in BCO2 Coding Sequence Causing a Difference in Carotenoid Concentration in the Skin of Chinese Indigenous Chicken. Genes (Basel) 2023; 14:genes14030671. [PMID: 36980942 PMCID: PMC10048632 DOI: 10.3390/genes14030671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/03/2023] [Accepted: 03/07/2023] [Indexed: 03/11/2023] Open
Abstract
Carotenoid consumption decreases the risk of cancer, osteoporosis, or neurodegenerative diseases through interrupting the formation of free radicals. The deposition of carotenoids in chicken skin makes the skin color turn from white into yellow. The enzyme β-carotene oxygenase 2 (BCO2) plays a key role during the degradation process of carotenoids in skin. How the BCO2 affects the skin color of the chicken and whether it is the key factor that results in the phenotypic difference between yellow- and white-skin chickens are still unclear. In this research, the measurement of the concentration of carotenoids in chicken skin by HPLC showed that the carotenoid concentration in chickens with a yellow skin was significantly higher than that in white-skin chickens. Moreover, there were significant differences in BCO2 gene expression in the back skin between yellow- and white-skin chickens. Scanning the SNPs in BCO2 gene revealed a G/A mutation in exon 6 of the BCO2 gene in white and yellow skin chicken. Generally, one SNP c.890A>G was found to be associated with the chicken skin color and may be used as a genetic marker in breeding for yellow skin in Chinese indigenous chickens.
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β-Cryptoxanthin Attenuates Cigarette-Smoke-Induced Lung Lesions in the Absence of Carotenoid Cleavage Enzymes (BCO1/BCO2) in Mice. Molecules 2023; 28:molecules28031383. [PMID: 36771049 PMCID: PMC9920649 DOI: 10.3390/molecules28031383] [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: 12/29/2022] [Revised: 01/21/2023] [Accepted: 01/24/2023] [Indexed: 02/04/2023] Open
Abstract
High dietary intake of β-cryptoxanthin (BCX, an oxygenated provitamin A carotenoid) is associated with a lower risk of lung disease in smokers. BCX can be cleaved by β-carotene-15,15'-oxygenase (BCO1) and β-carotene-9',10'-oxygenase (BCO2) to produce retinol and apo-10'-carotenoids. We investigated whether BCX has protective effects against cigarette smoke (CS)-induced lung injury, dependent or independent of BCO1/BCO2 and their metabolites. Both BCO1-/-/BCO2-/- double knockout mice (DKO) and wild type (WT) littermates were supplemented with BCX 14 days and then exposed to CS for an additional 14 days. CS exposure significantly induced macrophage and neutrophil infiltration in the lung tissues of mice, regardless of genotypes, compared to the non-exposed littermates. BCX treatment significantly inhibited CS-induced inflammatory cell infiltration, hyperplasia in the bronchial epithelium, and enlarged alveolar airspaces in both WT and DKO mice, regardless of sex. The protective effects of BCX were associated with lower expression of IL-6, TNF-α, and matrix metalloproteinases-2 and -9. BCX treatment led to a significant increase in hepatic BCX levels in DKO mice, but not in WT mice, which had significant increase in hepatic retinol concentration. No apo-10'-carotenoids were detected in any of the groups. In vitro BCX, at comparable doses of 3-OH-β-apo-10'-carotenal, was effective at inhibiting the lipopolysaccharide-induced inflammatory response in a human bronchial epithelial cell line. These data indicate that BCX can serve as an effective protective agent against CS-induced lung lesions in the absence of carotenoid cleavage enzymes.
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The BCO2 Genotype and the Expression of BCO1, BCO2, LRAT, and TTPA Genes in the Adipose Tissue and Brain of Rabbits Fed a Diet with Marigold Flower Extract. Int J Mol Sci 2023; 24:ijms24032304. [PMID: 36768627 PMCID: PMC9916731 DOI: 10.3390/ijms24032304] [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: 11/30/2022] [Revised: 01/20/2023] [Accepted: 01/22/2023] [Indexed: 01/26/2023] Open
Abstract
This study was undertaken to evaluate the effect of the BCO2 genotype and dietary supplementation with marigold flower extract on the expression of BCO1, BCO2, LRAT, and TTPA genes in the adipose tissue and brain of rabbits. The concentrations of lutein, zeaxanthin, β-carotene, retinol, and α-tocopherol were determined in samples collected from rabbits. Sixty young male Termond White rabbits were allocated to three groups based on their genotype at codon 248 of the BCO2 gene (ins/ins, ins/del, and del/del). Each group comprised two subgroups; one subgroup was administered a standard diet, whereas the diet offered to the other subgroup was supplemented with 6 g/kg of marigold flower extract. The study demonstrated that the BCO2 genotype may influence the expression levels of the BCO2, LRAT, and TTPA genes in adipose tissue, and TTPA and BCO1 genes in the brain. Moreover, an increase in the amount of lutein in the diet of BCO2 del/del rabbits may increase the expression of BCO1, LRAT, and TTPA genes in adipose tissue, and the expression of the BCO2 gene in the brain. Another finding of the study is that the content of carotenoids and α-tocopherol increases in both the adipose tissue and brain of BCO2 del/del rabbits.
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Strychalski J, Gugołek A, Antoszkiewicz Z, Fopp-Bayat D, Kaczorek-Łukowska E, Snarska A, Zwierzchowski G, Król-Grzymała A, Matusevičius P. The Effect of the BCO2 Genotype on the Expression of Genes Related to Carotenoid, Retinol, and α-Tocopherol Metabolism in Rabbits Fed a Diet with Aztec Marigold Flower Extract. Int J Mol Sci 2022; 23:ijms231810552. [PMID: 36142463 PMCID: PMC9506012 DOI: 10.3390/ijms231810552] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/31/2022] [Accepted: 09/08/2022] [Indexed: 11/16/2022] Open
Abstract
This study investigated the effect of the BCO2 genotype and the addition of Aztec marigold flower extract to rabbit diets on the expression of BCO1, BCO2, LRAT, and TTPA genes in the liver. The levels of lutein, zeaxanthin, β-carotene, retinol, and α-tocopherol in the liver and blood serum of rabbits, as well as plasma biochemical parameters and serum antioxidant enzyme activities were also determined. Sixty male Termond White growing rabbits were divided into three groups based on their genotype at codon 248 of the BCO2 gene (ins/ins, ins/del and del/del); each group was divided into two subgroups: one subgroup received a standard diet, and the other subgroup was fed a diet supplemented with 6 g/kg of marigold flower extract. The obtained results indicate that the BCO2 genotype may affect the expression levels of BCO1 and BCO2 genes in rabbits. Moreover, the addition of marigold extract to the diet of BCO2 del/del rabbits may increase the expression level of the BCO2 gene. Finally, an increase in the amount of lutein in the diet of rabbits with the BCO2 del/del genotype contributes to its increased accumulation in the liver and blood of animals without compromising their health status or liver function.
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Affiliation(s)
- Janusz Strychalski
- Department of Fur-Bearing Animal Breeding and Game Management, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719 Olsztyn, Poland
- Correspondence: ; Tel.: +48-895-234-442
| | - Andrzej Gugołek
- Department of Fur-Bearing Animal Breeding and Game Management, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719 Olsztyn, Poland
| | - Zofia Antoszkiewicz
- Department of Animal Nutrition and Feed Science, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719 Olsztyn, Poland
| | - Dorota Fopp-Bayat
- Department of Ichthyology and Aquaculture, Faculty of Animal Bioengineering, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719 Olsztyn, Poland
| | - Edyta Kaczorek-Łukowska
- Department of Microbiology and Clinical Immunology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-719 Olsztyn, Poland
| | - Anna Snarska
- Department and Clinic of Internal Diseases, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 14, 10-719 Olsztyn, Poland
| | - Grzegorz Zwierzchowski
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719 Olsztyn, Poland
| | - Angelika Król-Grzymała
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719 Olsztyn, Poland
| | - Paulius Matusevičius
- Department of Animal Breeding and Nutrition, Faculty of Animal Husbandry Technology, Lithuanian University of Health Sciences, Tilžes 18, LT-47181 Kaunas, Lithuania
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Guo Z, Liu Y, Luo Y. Mechanisms of carotenoid intestinal absorption and the regulation of dietary lipids: lipid transporter-mediated transintestinal epithelial pathways. Crit Rev Food Sci Nutr 2022; 64:1791-1816. [PMID: 36069234 DOI: 10.1080/10408398.2022.2119204] [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] [Indexed: 11/03/2022]
Abstract
Dietary lipids are key ingredients during cooking, processing, and seasoning of carotenoid-rich fruits and vegetables, playing vitals in affecting the absorption and utilization of carotenoids for achieving their health benefits. Besides, dietary lipids have also been extensively studied to construct various delivery systems for carotenoids, such as micro/nanoparticles, micro/nanoemulsions, and liposomes. Currently, the efficacies of these techniques on improving carotenoid bioavailability are often evaluated using the micellization rate or "bioaccessibility" based on in vitro models. However, recent studies have found that dietary lipids may also affect the carotenoid uptake via intestinal epithelial cells and the efflux of intracellular chyle particles via lipid transporters. An increasing number of studies reveal the varied impact of different dietary lipids on the absorption of different carotenoids and some lipids may even have an inhibitory effect. Consequently, it is necessary to clarify the relationship between the addition of dietary lipids and the intestinal absorption of carotenoid to fully understand the role of lipids during this process. This paper first introduces the intestinal absorption mechanism of carotenoids, including the effect of bile salts and lipases on mixed micelles, the types and regulation of lipid transporters, intracellular metabolizing enzymes, and the efflux process of chyle particles. Then, the regulatory mechanism of dietary lipids during intestinal carotenoid absorption is further discussed. Finally, the importance of selecting the dietary lipids for the absorption and utilization of different carotenoids and the design of an efficient delivery carrier are emphasized. This review provides suggestions for precise dietary carotenoid supplementation and offere an important reference for constructing efficient transport carriers for liposoluble nutrients.
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Affiliation(s)
- Zixin Guo
- College of Marine Food and Biological Engineering, Jimei University, Xiamen, Fujian, People's Republic of China
| | - Yixiang Liu
- College of Marine Food and Biological Engineering, Jimei University, Xiamen, Fujian, People's Republic of China
- Collaborative Innovation Center of Provincial and Ministerial Co-construction for Marine Food Deep Processing, Dalian Polytechnic University, Dalian, People's Republic of China
| | - Yangchao Luo
- Department of Nutritional Sciences, University of Connecticut, Storrs, Connecticut, USA
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Reconnoitring the Usage of Agroindustrial Waste in Carotenoid Production for Food Fortification: a Sustainable Approach to Tackle Vitamin A Deficiency. FOOD BIOPROCESS TECH 2022. [DOI: 10.1007/s11947-022-02888-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Suzuki M, Tomita M. Genetic Variations of Vitamin A-Absorption and Storage-Related Genes, and Their Potential Contribution to Vitamin A Deficiency Risks Among Different Ethnic Groups. Front Nutr 2022; 9:861619. [PMID: 35571879 PMCID: PMC9096837 DOI: 10.3389/fnut.2022.861619] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 03/23/2022] [Indexed: 12/01/2022] Open
Abstract
Vitamin A, an essential fat-soluble micronutrient, plays a critical role in the body, by regulating vision, immune responses, and normal development, for instance. Vitamin A deficiency (VAD) is a major cause of xerophthalmia and increases the risk of death from infectious diseases. It is also emerging that prenatal exposure to VAD is associated with disease risks later in life. The overall prevalence of VAD has significantly declined over recent decades; however, the rate of VAD is still high in many low- and mid-income countries and even in high-income countries among specific ethnic/race groups. While VAD occurs when dietary intake is insufficient to meet demands, establishing a strong association between food insecurity and VAD, and vitamin A supplementation is the primary solution to treat VAD, genetic contributions have also been reported to effect serum vitamin A levels. In this review, we discuss genetic variations associated with vitamin A status and vitamin A bioactivity-associated genes, specifically those linked to uptake of the vitamin in the small intestine and its storage in the liver, as well as their potential contribution to vitamin A deficiency risks among different ethnic groups.
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Affiliation(s)
- Masako Suzuki
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY, United States
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Kitakaze T, Sugihira T, Kameyama H, Maruchi A, Kobayashi Y, Harada N, Yamaji R. Carotenoid transporter CD36 expression depends on hypoxia-inducible factor-1α in mouse soleus muscles. J Clin Biochem Nutr 2022; 71:112-121. [PMID: 36213788 PMCID: PMC9519423 DOI: 10.3164/jcbn.21-163] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 03/22/2022] [Indexed: 11/22/2022] Open
Abstract
Dietary β-carotene induces muscle hypertrophy and prevents muscle atrophy in red slow-twitch soleus muscles, but not in white fast-twitch extensor digitorum longus (EDL) muscles and gastrocnemius muscles. However, it remains unclear why these beneficial effects of β-carotene are elicited in soleus muscles. To address this issue, we focused on carotenoid transporters in skeletal muscles. In mice, Cd36 mRNA levels were higher in red muscle than in white muscle. The siRNA-mediated knockdown of CD36 decreased β-carotene uptake in C2C12 myotubes. In soleus muscles, CD36 knockdown inhibited β-carotene-induced increase in muscle mass. Intravenous injection of the hypoxia marker pimonidazole produced more pimonidazole-bound proteins in soleus muscles than in EDL muscles, and the hypoxia-inducible factor-1 (HIF-1) α protein level was higher in soleus muscles than in EDL muscles. In C2C12 myotubes, hypoxia increased the expression of CD36 and HIF-1α at the protein and mRNA levels, and HIF-1α knockdown reduced hypoxia-induced increase in Cd36 mRNA level. In soleus muscles, HIF-1α knockdown reduced Cd36 mRNA level. These results indicate that CD36 is predominantly involved in β-carotene-induced increase in soleus muscle mass of mice. Furthermore, we demonstrate that CD36 expression depends on HIF-1α in the soleus muscles of mice, even under normal physiological conditions.
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Affiliation(s)
- Tomoya Kitakaze
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University
| | - Takashi Sugihira
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University
| | - Hiromichi Kameyama
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University
| | - Asami Maruchi
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University
| | - Yasuyuki Kobayashi
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University
| | - Naoki Harada
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University
| | - Ryoichi Yamaji
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University
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Abstract
Dietary intake and tissue levels of carotenoids have been associated with a reduced risk of several chronic diseases, including cardiovascular diseases, type 2 diabetes, obesity, brain-related diseases and some types of cancer. However, intervention trials with isolated carotenoid supplements have mostly failed to confirm the postulated health benefits. It has thereby been speculated that dosing, matrix and synergistic effects, as well as underlying health and the individual nutritional status plus genetic background do play a role. It appears that our knowledge on carotenoid-mediated health benefits may still be incomplete, as the underlying mechanisms of action are poorly understood in relation to human relevance. Antioxidant mechanisms - direct or via transcription factors such as NRF2 and NF-κB - and activation of nuclear hormone receptor pathways such as of RAR, RXR or also PPARs, via carotenoid metabolites, are the basic principles which we try to connect with carotenoid-transmitted health benefits as exemplified with described common diseases including obesity/diabetes and cancer. Depending on the targeted diseases, single or multiple mechanisms of actions may play a role. In this review and position paper, we try to highlight our present knowledge on carotenoid metabolism and mechanisms translatable into health benefits related to several chronic diseases.
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Using the Veggie Meter in Elementary Schools to Objectively Measure Fruit and Vegetable Intake: A Pilot Study. Methods Protoc 2021; 4:mps4020033. [PMID: 34066275 PMCID: PMC8162554 DOI: 10.3390/mps4020033] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/08/2021] [Accepted: 05/08/2021] [Indexed: 12/15/2022] Open
Abstract
Self-reported fruit and vegetable (FV) consumption in children has limitations that could be overcome with objective measures that are easy to implement. The Veggie Meter (VM) is a non-invasive portable device that measures skin carotenoid levels, a concentration biomarker of usual FV intake. While VM has been used to measure FV consumption in adults, few studies have explored its use in elementary school settings. Designing research studies using the VM with elementary school-age children requires an understanding of how well this device can be used in a school setting and of the distribution of VM scores in this population. We used VM to measure skin carotenoids in a diverse sample of 143 elementary school children who also answered commonly asked questions about consumption frequency of FV the previous day. Multivariable regression was used to assess the independent association of demographic variables with VM scores. VM scores were also compared with student-reported FV intake. There was a weak but statistically significant correlation between reported frequency of total vegetable consumption the previous day and observed VM scores (r = 0.174, p = 0.042). This study provides an example of the successful use of the VM in a school setting to collect an objective measure of FV intake and provides important description of data that can inform future studies.
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15
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Böhm V, Lietz G, Olmedilla-Alonso B, Phelan D, Reboul E, Bánati D, Borel P, Corte-Real J, de Lera AR, Desmarchelier C, Dulinska-Litewka J, Landrier JF, Milisav I, Nolan J, Porrini M, Riso P, Roob JM, Valanou E, Wawrzyniak A, Winklhofer-Roob BM, Rühl R, Bohn T. From carotenoid intake to carotenoid blood and tissue concentrations - implications for dietary intake recommendations. Nutr Rev 2021; 79:544-573. [PMID: 32766681 PMCID: PMC8025354 DOI: 10.1093/nutrit/nuaa008] [Citation(s) in RCA: 90] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
There is uncertainty regarding carotenoid intake recommendations, because positive and negative health effects have been found or are correlated with carotenoid intake and tissue levels (including blood, adipose tissue, and the macula), depending on the type of study (epidemiological vs intervention), the dose (physiological vs supraphysiological) and the matrix (foods vs supplements, isolated or used in combination). All these factors, combined with interindividual response variations (eg, depending on age, sex, disease state, genetic makeup), make the relationship between carotenoid intake and their blood/tissue concentrations often unclear and highly variable. Although blood total carotenoid concentrations <1000 nmol/L have been related to increased chronic disease risk, no dietary reference intakes (DRIs) exist. Although high total plasma/serum carotenoid concentrations of up to 7500 nmol/L are achievable after supplementation, a plateauing effect for higher doses and prolonged intake is apparent. In this review and position paper, the current knowledge on carotenoids in serum/plasma and tissues and their relationship to dietary intake and health status is summarized with the aim of proposing suggestions for a "normal," safe, and desirable range of concentrations that presumably are beneficial for health. Existing recommendations are likewise evaluated and practical dietary suggestions are included.
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Affiliation(s)
- Volker Böhm
- Institute of Nutritional Sciences, Friedrich Schiller University Jena, Jena, Germany
| | - Georg Lietz
- Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Begoña Olmedilla-Alonso
- Institute of Food Science, Technology and Nutrition, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - David Phelan
- Nutrition Research Centre Ireland, School of Health Science, Carriganore House, Waterford Institute of Technology, Waterford, Ireland
| | | | | | - Patrick Borel
- C2VN, INRAE, INSERM, Aix Marseille Univ, Marseille, France
| | - Joana Corte-Real
- Population Health Department, Luxembourg Institute of Health, Strassen, Luxembourg
| | - Angel R de Lera
- Departmento de Química Orgánica, Centro De Investigaciones Biomédicas and Instituto de Investigación Biomédica de Vigo, Universidade de Vigo, Vigo, Spain
| | | | | | | | - Irina Milisav
- University of Ljubljana, Ljubljana, Slovenia
- University of Ljubljana, Faculty of Health Sciences, Ljubljana, Slovenia and with University of Ljubljana, Faculty of Medicine, Ljubljana, Slovenia
| | - John Nolan
- Nutrition Research Centre Ireland, School of Health Science, Carriganore House, Waterford Institute of Technology, Waterford, Ireland
| | - Marisa Porrini
- Universitàdegli Studi di Milano, Department of Food, Environmental and Nutritional Sciences, Division of Human Nutrition, Milan, Italy
| | - Patrizia Riso
- Universitàdegli Studi di Milano, Department of Food, Environmental and Nutritional Sciences, Division of Human Nutrition, Milan, Italy
| | - Johannes M Roob
- Research Unit Chronic Inflammation in Nephrology, Clinical Division of Nephrology, Department of Internal Medicine, Medical University, Graz, Austria
| | | | - Agata Wawrzyniak
- Institute of Human Nutrition Sciences, Warsaw University of Life Sciences, Warsaw, Poland
| | - Brigitte M Winklhofer-Roob
- Human Nutrition & Metabolism Research and Training Center, Institute of Molecular Biosciences, Karl-Franzens University, Graz, Austria
| | - Ralph Rühl
- Paprika Bioanalytics BT, Debrecen, Hungary and with CISCAREX UG, Berlin, Germany
| | - Torsten Bohn
- Population Health Department, Luxembourg Institute of Health, Strassen, Luxembourg
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16
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Mummidi S, Farook VS, Reddivari L, Hernandez-Ruiz J, Diaz-Badillo A, Fowler SP, Resendez RG, Akhtar F, Lehman DM, Jenkinson CP, Arya R, Lynch JL, Canas JA, DeFronzo RA, Hale DE, Blangero J, Lopez-Alvarenga JC, Duggirala R, Vanamala JKP. Serum carotenoids and Pediatric Metabolic Index predict insulin sensitivity in Mexican American children. Sci Rep 2021; 11:871. [PMID: 33441626 PMCID: PMC7806924 DOI: 10.1038/s41598-020-79387-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 12/01/2020] [Indexed: 12/20/2022] Open
Abstract
High concentrations of carotenoids are protective against cardiometabolic risk traits (CMTs) in adults and children. We recently showed in non-diabetic Mexican American (MA) children that serum α-carotene and β-carotene are inversely correlated with obesity measures and triglycerides and positively with HDL cholesterol and that they were under strong genetic influences. Additionally, we previously described a Pediatric Metabolic Index (PMI) that helps in the identification of children who are at risk for cardiometabolic diseases. Here, we quantified serum lycopene and β-cryptoxanthin concentrations in approximately 580 children from MA families using an ultraperformance liquid chromatography-photodiode array and determined their heritabilities and correlations with CMTs. Using response surface methodology (RSM), we determined two-way interactions of carotenoids and PMI on Matsuda insulin sensitivity index (ISI). The concentrations of lycopene and β-cryptoxanthin were highly heritable [h2 = 0.98, P = 7 × 10-18 and h2 = 0.58, P = 1 × 10-7]. We found significant (P ≤ 0.05) negative phenotypic correlations between β-cryptoxanthin and five CMTs: body mass index (- 0.22), waist circumference (- 0.25), triglycerides (- 0.18), fat mass (- 0.23), fasting glucose (- 0.09), and positive correlations with HDL cholesterol (0.29). In contrast, lycopene only showed a significant negative correlation with fasting glucose (- 0.08) and a positive correlation with HDL cholesterol (0.18). Importantly, we found that common genetic influences significantly contributed to the observed phenotypic correlations. RSM showed that increased serum concentrations of α- and β-carotenoids rather than that of β-cryptoxanthin or lycopene had maximal effects on ISI. In summary, our findings suggest that the serum carotenoids are under strong additive genetic influences and may have differential effects on susceptibility to CMTs in children.
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Affiliation(s)
- Srinivas Mummidi
- South Texas Diabetes and Obesity Institute, Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA.
| | - Vidya S Farook
- South Texas Diabetes and Obesity Institute, Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Lavanya Reddivari
- Department of Food Science, Purdue University, West Lafayette, IN, USA
| | - Joselin Hernandez-Ruiz
- Clinical Pharmacology Unit, Hospital General de México Dr. Eduardo Liceaga, Mexico City, Mexico
| | - Alvaro Diaz-Badillo
- South Texas Diabetes and Obesity Institute, Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Sharon P Fowler
- School of Public Health, University of Texas Health Houston, Houston, TX, USA
| | - Roy G Resendez
- South Texas Diabetes and Obesity Institute, Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Feroz Akhtar
- South Texas Diabetes and Obesity Institute, Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Donna M Lehman
- Department of Medicine, School of Medicine, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Christopher P Jenkinson
- South Texas Diabetes and Obesity Institute, Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Rector Arya
- South Texas Diabetes and Obesity Institute, Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Jane L Lynch
- Department of Pediatrics, School of Medicine, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Jose A Canas
- Johns Hopkins All Children's Hospital, St. Petersburg, FL, 33701, USA
| | - Ralph A DeFronzo
- Department of Medicine, School of Medicine, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Daniel E Hale
- Department of Pediatrics, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, USA
| | - John Blangero
- South Texas Diabetes and Obesity Institute, Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Juan Carlos Lopez-Alvarenga
- South Texas Diabetes and Obesity Institute, Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Ravindranath Duggirala
- South Texas Diabetes and Obesity Institute, Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Jairam K P Vanamala
- Department of Food Science, Pennsylvania State University, University Park, PA, USA.
- Department of Plant Science, Pennsylvania State University, University Park, PA, USA.
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17
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Lesmana R, Felia Yusuf I, Goenawan H, Achadiyani A, Khairani AF, Nur Fatimah S, Supratman U. Low Dose of β-Carotene Regulates Inflammation, Reduces Caspase Signaling, and Correlates with Autophagy Activation in Cardiomyoblast Cell Lines. Med Sci Monit Basic Res 2020; 26:e928648. [PMID: 33361744 PMCID: PMC7780889 DOI: 10.12659/msmbr.928648] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background Excessive reactive oxygen species (ROS) stimulate mitochondrial damage that causes degenerative diseases such as cardiovascular disease (CVD). β-carotene (BC), a natural antioxidant able to counteract free radicals, acts as a cytoprotective agent. However, knowledge of the role of BC on cardiomyoblasts is limited. In this study, we explored its role on COX4, Tom20, Nfr1, Nrf2, Nf-κB, LC3, p62, caspase 3, and caspase 9 and its association with cardiomyoblast viability and survival. Material/Methods H9C2 cell lines were seeded, cultivated until 90% to 100% confluency, and treated with various doses of BC: 10 μM, 1 μM, 0.1 μM, and 0.01 μM. After 24 h, the cells were harvested, lyzed, and tested for specific related protein expressions from each dose. Results Low-dose BC induced autophagy most effectively at 1 μM, 0.1 μM, and 0.01 μM, as indicated by a decrease of LC3II and p62 levels. We observed that Nf-κB protein levels were suppressed; Nrf2 was stimulated, but Nrf1 was not altered significantly. Further, low-dose BC might stimulate cell viability by reducing apoptotic signals of caspase 3 and 9. Notably, low-dose BC also showed potential to increase Tom20 protein levels. Conclusions Low-dose BC supplementation shows beneficial effects, especially at 0.01 μM, by reducing inflammation through the suppression of Nf-κB and increase of Nrf2 level. Autophagy as a cellular maintenance mechanism was also stimulated, and the amount of the mitochondria marker Tom20 increased. Taken together, results showed that specific low-dose BC is effective and might improve cell viability by stimulating autophagy, inhibiting proinflammatory factors, and suppressing apoptosis.
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Affiliation(s)
- Ronny Lesmana
- Physiology Division, Department of Biomedical Science, Faculty of Medicine, University Padjadjaran, Jatinangor, Indonesia.,Division of Biological Activity, Central Laboratory, University Padjadjaran, Bandung, Indonesia.,Center of Excellence in Higher Education for Pharmaceutical Care Innovation, University Padjadjaran, Bandung, Indonesia
| | - Inez Felia Yusuf
- Postgraduate Program of Anti-Aging and Aesthetics Medicine, Faculty of Medicine, University Padjadjaran, Bandung, Indonesia
| | - Hanna Goenawan
- Physiology Division, Department of Biomedical Science, Faculty of Medicine, University Padjadjaran, Bandung, Indonesia.,Division of Biological Activity, Central Laboratory, University Padjadjaran, Bandung, Indonesia
| | - Achadiyani Achadiyani
- Cell Biology Division, Department of Biomedical Science, Faculty of Medicine, University Padjadjaran, Jatinangor, Indonesia
| | - Astrid Feinisa Khairani
- Postgraduate Program of Anti-Aging and Aesthetics Medicine, Faculty of Medicine, University Padjadjaran, Bandung, Indonesia.,Cell Biology Division, Department of Biomedical Science, Faculty of Medicine, University Padjadjaran, Jatinangor, Indonesia
| | - Siti Nur Fatimah
- Department of Medical Nutrition, Faculty of Medicine, University Padjadjaran, Bandung, Indonesia
| | - Unang Supratman
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, University Padjadjaran, Bandung, Indonesia
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18
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Lietz G. Overlapping Vitamin A Intervention Programs: Should We Be Concerned with Excessive Intakes? J Nutr 2020; 150:2849-2851. [PMID: 33021314 PMCID: PMC7675028 DOI: 10.1093/jn/nxaa288] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/06/2020] [Accepted: 09/01/2020] [Indexed: 12/24/2022] Open
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19
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Marhuenda-Muñoz M, Hurtado-Barroso S, Tresserra-Rimbau A, Lamuela-Raventós RM. A review of factors that affect carotenoid concentrations in human plasma: differences between Mediterranean and Northern diets. Eur J Clin Nutr 2020; 72:18-25. [PMID: 30487559 DOI: 10.1038/s41430-018-0305-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Carotenoids are naturally occurring pigments of autotroph organisms that have been related to many health benefits and this is not only because some of them are precursors of vitamin A. Individual or whole carotenoid consumption has been associated with a lower risk of developing cancer, cardiovascular and metabolic diseases among others. However, the blood levels of carotenoids vary largely from person to person due to different factors. Diet is the most important one because of the dietary patterns that different populations follow, the time of the year of consumption or the personal preferences. Nevertheless, the intrinsic host factors such as the absorption, distribution, metabolism and excretion genetic polymorphisms, the volume of distribution and the person's microbiota and others such as carotenoid interactions are also inducing this so called inter-individual variability. Besides, culinary methods and processing produce changes in the foods that directly affect carotenoid content and hence their blood profile. Different types of studies have been performed to understand the between-subject variation of the carotenoid profile in human plasma. This research is focused on this matter as levels of carotenoids in human plasma could be useful for the prediction of some diseases. The Mediterranean diet is probably the most carotenoid rich diet stemming from its high proportion of fruits and vegetables. Its differences with other diets and the effect on the carotenoid blood profile of the consumers are currently a very interesting topic of study.
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Affiliation(s)
- María Marhuenda-Muñoz
- Department of Nutrition, Food Sciences, and Gastronomy, School of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain.,Biomedical Research Networking Centres in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain.,Nutrition and Food Safety Research Institute (INSA-UB), University of Barcelona, Barcelona, Spain
| | - Sara Hurtado-Barroso
- Department of Nutrition, Food Sciences, and Gastronomy, School of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain.,Biomedical Research Networking Centres in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain.,Nutrition and Food Safety Research Institute (INSA-UB), University of Barcelona, Barcelona, Spain
| | - Anna Tresserra-Rimbau
- Nutrition and Food Safety Research Institute (INSA-UB), University of Barcelona, Barcelona, Spain.,Human Nutrition Unit, Faculty of Medicine and Health Sciences, Department of Biochemistry and Biotechnology, Pere Virgili Health Research Center, University Hospital of Sant Joan de Reus, Universitat Rovira i Virgili, Reus, Spain
| | - Rosa Maria Lamuela-Raventós
- Department of Nutrition, Food Sciences, and Gastronomy, School of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain. .,Biomedical Research Networking Centres in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain. .,Nutrition and Food Safety Research Institute (INSA-UB), University of Barcelona, Barcelona, Spain.
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20
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Variation in carotenoid-containing retinal oil droplets correlates with variation in perception of carotenoid coloration. Behav Ecol Sociobiol 2020. [DOI: 10.1007/s00265-020-02874-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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21
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Zanón-Moreno V, Domingo Pedrol JC, Sanz-González SM, Raga-Cervera J, Salazar-Corral J, Pinazo-Durán MD. Feasibility study of a docosahexaenoic acid optimized nutraceutical formulation on the macular levels of lutein in a healthy Mediterranean population. Ophthalmic Res 2020; 64:1068-1076. [PMID: 32544914 DOI: 10.1159/000509439] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 06/15/2020] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Macular pigment optical density plays a pivotal role in maintaining macular structure and functioning. Research shows that daily consumption of lutein reduces the risk of eye diseases such as age-related macular degeneration. OBJECTIVE This study analyzes the influence of a supplementation containing lutein and antioxidant vitamins either with or without docosahexaenoic acid (DHA), with the main objective of identifying macular pigment optical density (MPOD) changes in both eyes at the end of the follow-up using the Visucam® retinograph. The secondary endpoint was to determine variation in the lutein and DHA levels in plasma and red blood cell membranes respectively. METHODS One hundred healthy participants (200 eyes) aged 40-70 years (mean age 49.3 years, SEM=13.7) were randomized in a 1:1 ratio to receive daily one of the following supplements for 3 months: Lutein group (LT-G, n=49), Lutein /Docosahexaenoic acid group (LT/DHA-G, n= 51). The MPOD was measured at baseline and end of the follow-up by retinography (Visucam® retinograph). Lutein in plasma was determined by HPLC and DHA in red blood cell membranes was analyzed by gas chromatograph/mass spectrometer. RESULTS From baseline, macular pigment optical density showed significantly higher values in the Lutein/DHA group than in the Lutein group at the end of the study (p<0.0001). Significantly higher Lutein in plasma (p<0.0001) and DHA (p<0.0001) levels in the red blood cell membrane were seen in the Lutein/DHA group than in the Lutein group at the 3-month follow-up. CONCLUSION Lutein supplementation improves macular pigment optical density in healthy subjects from a Mediterranean population being significantly increased in the presence of DHA. Therefore, our findings highlight the relevance of the adjunctive role of DHA for a better Lutein availability.
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Affiliation(s)
- Vicente Zanón-Moreno
- Ophthalmic Research Unit "Santiago Grisolía" FISABIO, and Cellular and Molecular Ophthalmobiology Group of the Department of Surgery at University of Valencia, Valencia, Spain
- Spanish Network of Cooperative Research in Ophthalmology (OFTARED), Carlos III Health Institute, Ministry of Science, Innovation and Universities, Madrid, Spain
- Faculty of Health Sciences, Valencian International University, Valencia, Spain
| | - Joan C Domingo Pedrol
- Department of Biochemistry and Molecular Biomedicine at the Faculty of Biology, University of Barcelona, Barcelona, Spain
| | - Silvia M Sanz-González
- Ophthalmic Research Unit "Santiago Grisolía" FISABIO, and Cellular and Molecular Ophthalmobiology Group of the Department of Surgery at University of Valencia, Valencia, Spain
- Spanish Network of Cooperative Research in Ophthalmology (OFTARED), Carlos III Health Institute, Ministry of Science, Innovation and Universities, Madrid, Spain
| | - Jorge Raga-Cervera
- Ophthalmic Research Unit "Santiago Grisolía" FISABIO, and Cellular and Molecular Ophthalmobiology Group of the Department of Surgery at University of Valencia, Valencia, Spain
- Department of Ophthalmology, Hospital of Manises, Manises, Spain
| | - Juan Salazar-Corral
- Spanish Network of Cooperative Research in Ophthalmology (OFTARED), Carlos III Health Institute, Ministry of Science, Innovation and Universities, Madrid, Spain
- Institute of Ophthalmic Research "Ramón Castroviejo", Complutensis University of Madrid, Madrid, Spain
| | - Maria Dolores Pinazo-Durán
- Ophthalmic Research Unit "Santiago Grisolía" FISABIO, and Cellular and Molecular Ophthalmobiology Group of the Department of Surgery at University of Valencia, Valencia, Spain
- Spanish Network of Cooperative Research in Ophthalmology (OFTARED), Carlos III Health Institute, Ministry of Science, Innovation and Universities, Madrid, Spain
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22
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Mustra Rakic J, Wang XD. Role of lycopene in smoke-promoted chronic obstructive pulmonary disease and lung carcinogenesis. Arch Biochem Biophys 2020; 689:108439. [PMID: 32504553 DOI: 10.1016/j.abb.2020.108439] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/20/2020] [Accepted: 05/27/2020] [Indexed: 12/30/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) and lung cancer are a major cause of morbidity and mortality worldwide, with cigarette smoking being the single most important risk factor for both. Emerging evidence indicates alterations in reverse cholesterol transport-mediated removal of excess cholesterol from lung, and intracellular cholesterol overload to be involved in smoke-promoted COPD and lung cancer development. Since there are currently few effective treatments for COPD and lung cancer, it is important to identify food-derived, biologically active compounds, which can protect against COPD and lung cancer development. High intake of the carotenoid lycopene, as one of phytochemicals, is associated with a decreased risk of chronic lung lesions. This review article summarizes and discusses epidemiologic evidence, in vitro and in vivo studies regarding the prevention of smoke-promoted COPD and lung carcinogenesis through dietary lycopene as an effective intervention strategy. We focus on the recent research implying that lycopene preventive effect is through targeting the main genes involved in reverse cholesterol transport. This review also indicates gaps in knowledge about the function of lycopene against COPD and lung cancer, offering directions for further research.
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Affiliation(s)
- Jelena Mustra Rakic
- Nutrition and Cancer Biology Lab, Jean Mayer USDA-Human Nutrition Research Center on Aging (HNRCA) at Tufts University, Boston, MA, USA; Biochemical and Molecular Nutrition Program, Friedman School of Nutrition and Policy, Tufts University, Boston, MA, USA
| | - Xiang-Dong Wang
- Nutrition and Cancer Biology Lab, Jean Mayer USDA-Human Nutrition Research Center on Aging (HNRCA) at Tufts University, Boston, MA, USA; Biochemical and Molecular Nutrition Program, Friedman School of Nutrition and Policy, Tufts University, Boston, MA, USA.
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23
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Radtke MD, Pitts SJ, Jahns L, Firnhaber GC, Loofbourrow BM, Zeng A, Scherr RE. Criterion-Related Validity of Spectroscopy-Based Skin Carotenoid Measurements as a Proxy for Fruit and Vegetable Intake: A Systematic Review. Adv Nutr 2020; 11:1282-1299. [PMID: 32407509 PMCID: PMC7490174 DOI: 10.1093/advances/nmaa054] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 04/09/2020] [Accepted: 04/17/2020] [Indexed: 11/14/2022] Open
Abstract
Carotenoids are a category of health-promoting phytonutrients that are found in a variety of fruits and vegetables and have been used as a biomarker to approximate dietary fruit and vegetable (F/V) intake. Carotenoids are consumed, metabolized, and deposited in blood, skin, and other tissues. Emerging evidence suggests spectroscopy-based skin carotenoid measurement is a noninvasive method to approximate F/V intake. Spectroscopy-based skin carotenoid measurement overcomes bias and error inherent in self-reported dietary recall methods, and the challenges in obtaining, storing, and processing invasive blood samples. The objective of this systematic review was to examine criterion-related validity of spectroscopy-based skin carotenoid measurement as a proxy for F/V intake. The 3 methods examined were resonance Raman spectroscopy (RRS), pressure-mediated reflection spectroscopy (RS), and spectrophotometers. A comprehensive literature search of PubMed, Excerpta Medica Database (Embase), Cumulative Index of Nursing and Allied Health Literature (CINAHL), ProQuest, Cochrane Database of Systematic Reviews, and Cochrane Central Register of Controlled Trials (CENTRAL) was performed in December 2018, yielding 7931 citations. Studies that examined associations between spectroscopy, blood carotenoids, and/or dietary intake were identified and reviewed independently by ≥2 reviewers to determine eligibility for inclusion. Twenty-nine articles met the inclusion criteria and all 29 studies found significant correlations or associations between spectroscopy-based skin carotenoids and plasma or serum carotenoids and/or dietary F/V intake. A majority of the studies evaluated carotenoid concentration in adults; however, 4 studies were conducted in infants and 6 studies evaluated children. Twenty studies specified the racial/ethnic groups from which the samples were drawn, with 6 including ≥20% of the sample from a minority, nonwhite population. The findings of this systematic review support the use of spectroscopy for estimating F/V intake in diverse human populations, although additional validation is needed, particularly among racially/ethnically diverse populations and populations of varying ages.
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Affiliation(s)
- Marcela D Radtke
- Department of Nutrition, University of California, Davis, Davis, CA, USA,Center for Nutrition in Schools, University of California, Davis, Davis, CA, USA
| | - Stephanie Jilcott Pitts
- Department of Public Health, Brody School of Medicine, East Carolina University, Greenville, NC, USA
| | - Lisa Jahns
- United States Department of Agriculture, Agricultural Research Service, Grand Forks Human Nutrition Research Center, Grand Forks, ND, USA
| | - Gina C Firnhaber
- College of Nursing, East Carolina University, Greenville, NC, USA
| | - Brittany M Loofbourrow
- Department of Nutrition, University of California, Davis, Davis, CA, USA,Center for Nutrition in Schools, University of California, Davis, Davis, CA, USA
| | - April Zeng
- Brody School of Medicine, East Carolina University, Greenville, NC, USA
| | - Rachel E Scherr
- Department of Nutrition, University of California, Davis, Davis, CA, USA,Center for Nutrition in Schools, University of California, Davis, Davis, CA, USA,Address correspondence to RES (E-mail: )
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24
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Bonet ML, Ribot J, Galmés S, Serra F, Palou A. Carotenoids and carotenoid conversion products in adipose tissue biology and obesity: Pre-clinical and human studies. Biochim Biophys Acta Mol Cell Biol Lipids 2020; 1865:158676. [PMID: 32120014 DOI: 10.1016/j.bbalip.2020.158676] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 02/20/2020] [Accepted: 02/21/2020] [Indexed: 02/07/2023]
Abstract
Antiobesity activities of carotenoids and carotenoid conversion products (CCPs) have been demonstrated in pre-clinical studies, and mechanisms behind have begun to be unveiled, thus suggesting these compounds may help obesity prevention and management. The antiobesity action of carotenoids and CCPs can be traced to effects in multiple tissues, notably the adipose tissues. Key aspects of the biology of adipose tissues appear to be affected by carotenoid and CCPs, including adipogenesis, metabolic capacities for energy storage, release and inefficient oxidation, secretory function, and modulation of oxidative stress and inflammatory pathways. Here, we review the connections of carotenoids and CCPs with adipose tissue biology and obesity as revealed by cell and animal intervention studies, studies addressing the role of endogenous retinoid metabolism, and human epidemiological and intervention studies. We also consider human genetic variability influencing carotenoid and vitamin A metabolism, particularly in adipose tissues, as a potentially relevant aspect towards personalization of dietary recommendations to prevent or manage obesity and optimize metabolic health. This article is part of a Special Issue entitled Carotenoids recent advances in cell and molecular biology edited by Johannes von Lintig and Loredana Quadro.
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Affiliation(s)
- M Luisa Bonet
- Grup de Recerca Nutrigenòmica i Obesitat, Laboratori de Biologia Molecular, Nutrició i Biotecnologia (LBNB), Universitat de les Illes Balears, Palma de Mallorca, Spain; Institut d'Investigació Sanitària Illes Balears (IdISBa), Spain; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Spain.
| | - Joan Ribot
- Grup de Recerca Nutrigenòmica i Obesitat, Laboratori de Biologia Molecular, Nutrició i Biotecnologia (LBNB), Universitat de les Illes Balears, Palma de Mallorca, Spain; Institut d'Investigació Sanitària Illes Balears (IdISBa), Spain; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Spain
| | | | - Francisca Serra
- Grup de Recerca Nutrigenòmica i Obesitat, Laboratori de Biologia Molecular, Nutrició i Biotecnologia (LBNB), Universitat de les Illes Balears, Palma de Mallorca, Spain; Institut d'Investigació Sanitària Illes Balears (IdISBa), Spain; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Spain
| | - Andreu Palou
- Grup de Recerca Nutrigenòmica i Obesitat, Laboratori de Biologia Molecular, Nutrició i Biotecnologia (LBNB), Universitat de les Illes Balears, Palma de Mallorca, Spain; Institut d'Investigació Sanitària Illes Balears (IdISBa), Spain; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Spain
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Jahns L, Johnson LK, Conrad Z, Bukowski M, Raatz SK, Jilcott Pitts S, Wang Y, Ermakov IV, Gellermann W. Concurrent validity of skin carotenoid status as a concentration biomarker of vegetable and fruit intake compared to multiple 24-h recalls and plasma carotenoid concentrations across one year: a cohort study. Nutr J 2019; 18:78. [PMID: 31752882 PMCID: PMC6873686 DOI: 10.1186/s12937-019-0500-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 10/30/2019] [Indexed: 12/14/2022] Open
Abstract
Background Biological markers of vegetable and fruit (VF) intake are needed both for nutrition surveillance and for the evaluation of nutrition interventions. Optically assessed skin carotenoid status (SCS) has been proposed as a marker of intake but there are few published validity studies to date. Therefore, the objective of the study was to examine the concurrent validity of multiple methods of assessing VF intake cross-sectionally and seasonally over one year and to discuss the relative merits and limitations of each method. Methods Fifty-two 40–60 y old women completed a 1-year longitudinal study that included 1) SCS assessment using resonance Raman spectroscopy (RRS) and using pressure-mediated reflection spectroscopy (RS) at 12 timepoints, 2) thirty-six 24-h recalls using the Automated Self-Administered 24-Hour Dietary Assessment Tool (ASA24; total 1866 recalls), and 3) plasma carotenoid concentrations measured every 3 months. Pearson correlation coefficients and mixed linear models were used to estimate pairwise correlations between RRS, RS, ASA24, and plasma carotenoids. Results RS and RRS were strongly correlated at baseline and over the year (r = 0.86 and 0.76; respectively, P < 0.001). RS was strongly correlated with plasma carotenoids at baseline (r = 0.70) and moderately across the year (r = 0.65), as was RRS (r = 0.77 and 0.69, respectively, all P < 0.001). At baseline, self-reported VF was weakly correlated with RRS (r = 0.33; P = 0.016), but not with RS or plasma carotenoids. Across the year, self-reported VF intake was weakly correlated with both RS (r = 0.37; P = 0.008), RRS (r = 0.37; P = 0.007), and with plasma carotenoids (r = 0.36; P < 0.008). Conclusions SCS as measured by RS and RRS is moderately to strongly correlated with plasma carotenoid concentrations both cross-sectionally and longitudinally, indicating that it can be a powerful tool to assess carotenoid-rich VF intake in populations. Clinical trial registry This trial was registered at ClinicalTrials.gov as NCT01674296.
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Affiliation(s)
- Lisa Jahns
- United States Department of Agriculture, Agricultural Research Service, Grand Forks Human Nutrition Research Center, 2420 2nd Avenue North, Grand Forks, ND, 58203, USA.
| | - LuAnn K Johnson
- United States Department of Agriculture, Agricultural Research Service, Grand Forks Human Nutrition Research Center, 2420 2nd Avenue North, Grand Forks, ND, 58203, USA
| | - Zach Conrad
- United States Department of Agriculture, Agricultural Research Service, Grand Forks Human Nutrition Research Center, 2420 2nd Avenue North, Grand Forks, ND, 58203, USA.,Department of Health Sciences, William & Mary, 251 Ukrop Way, Williamsburg, VA, 23185, USA
| | - Michael Bukowski
- United States Department of Agriculture, Agricultural Research Service, Grand Forks Human Nutrition Research Center, 2420 2nd Avenue North, Grand Forks, ND, 58203, USA
| | - Susan K Raatz
- United States Department of Agriculture, Agricultural Research Service, Grand Forks Human Nutrition Research Center, 2420 2nd Avenue North, Grand Forks, ND, 58203, USA.,Department of Food Science and Nutrition, 225 Food Science and Nutrition, 1334 Eckles Ave, St. Paul, MN, 55108, USA
| | - Stephanie Jilcott Pitts
- Department of Public Health, Brody School of Medicine, East Carolina University, 115 Heart Drive MS 660, Greenville, NC, 27834, USA
| | - Youfa Wang
- Department of Nutrition and Health Sciences, College of Health, Ball State University, Muncie, IN, 47306, USA
| | - Igor V Ermakov
- Longevity Link Corporation, University of Utah Research Park, 391 Chipeta Way Suite E, Salt Lake City, UT, 84108, USA
| | - Werner Gellermann
- Longevity Link Corporation, University of Utah Research Park, 391 Chipeta Way Suite E, Salt Lake City, UT, 84108, USA
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26
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Walther B, Lett AM, Bordoni A, Tomás‐Cobos L, Nieto JA, Dupont D, Danesi F, Shahar DR, Echaniz A, Re R, Fernandez AS, Deglaire A, Gille D, Schmid A, Vergères G. GutSelf: Interindividual Variability in the Processing of Dietary Compounds by the Human Gastrointestinal Tract. Mol Nutr Food Res 2019; 63:e1900677. [PMID: 31483113 PMCID: PMC6900003 DOI: 10.1002/mnfr.201900677] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 07/25/2019] [Indexed: 12/19/2022]
Abstract
Nutritional research is currently entering the field of personalized nutrition, to a large extent driven by major technological breakthroughs in analytical sciences and biocomputing. An efficient launching of the personalized approach depends on the ability of researchers to comprehensively monitor and characterize interindividual variability in the activity of the human gastrointestinal tract. This information is currently not available in such a form. This review therefore aims at identifying and discussing published data, providing evidence on interindividual variability in the processing of the major nutrients, i.e., protein, fat, carbohydrates, vitamins, and minerals, along the gastrointestinal tract, including oral processing, intestinal digestion, and absorption. Although interindividual variability is not a primary endpoint of most studies identified, a significant number of publications provides a wealth of information on this topic for each category of nutrients. This knowledge remains fragmented, however, and understanding the clinical relevance of most of the interindividual responses to food ingestion described in this review remains unclear. In that regard, this review has identified a gap and sets the base for future research addressing the issue of the interindividual variability in the response of the human organism to the ingestion of foods.
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Affiliation(s)
- Barbara Walther
- AgroscopeFederal Department of Economic AffairsEducation and Research EAER3003BerneSwitzerland
| | - Aaron M. Lett
- Section for Nutrition ResearchDepartment of MedicineImperial College LondonLondonUK
| | - Alessandra Bordoni
- Department of Agri‐Food Sciences and TechnologiesUniversity of Bologna47521CesenaItaly
| | | | | | - Didier Dupont
- UMR 1253Science et Technologie du Lait et de l'ŒufINRA35000RennesFrance
| | - Francesca Danesi
- Department of Agri‐Food Sciences and TechnologiesUniversity of Bologna47521CesenaItaly
| | - Danit R. Shahar
- Department of Public HealthThe S. Daniel Abraham International Center for Health and NutritionBen‐Gurion University of the Negev84105Beer‐ShevaIsrael
| | - Ana Echaniz
- Cambridge Food Science LtdCB23 5ABCambridgeUK
| | - Roberta Re
- Cambridge Food Science LtdCB23 5ABCambridgeUK
| | | | - Amélie Deglaire
- UMR 1253Science et Technologie du Lait et de l'ŒufINRA35000RennesFrance
| | - Doreen Gille
- AgroscopeFederal Department of Economic AffairsEducation and Research EAER3003BerneSwitzerland
| | - Alexandra Schmid
- AgroscopeFederal Department of Economic AffairsEducation and Research EAER3003BerneSwitzerland
| | - Guy Vergères
- AgroscopeFederal Department of Economic AffairsEducation and Research EAER3003BerneSwitzerland
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27
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Murillo AG, Hu S, Fernandez ML. Zeaxanthin: Metabolism, Properties, and Antioxidant Protection of Eyes, Heart, Liver, and Skin. Antioxidants (Basel) 2019; 8:E390. [PMID: 31514298 PMCID: PMC6770730 DOI: 10.3390/antiox8090390] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 09/05/2019] [Accepted: 09/07/2019] [Indexed: 12/31/2022] Open
Abstract
Zeaxanthin, a non-provitamin A carotenoid that belongs to the xanthophyll family, has been less studied than its isomer lutein. However, zeaxanthin has also been shown to have a number of beneficial effects for human health due to its ability to quench free radicals, exert antioxidant effects, as well as decrease inflammation. It is the purpose of this review to discuss the metabolism of zeaxanthin, including digestion, absorption, transport, and uptake by tissues, as well as the dietary or other factors which affect zeaxanthin bioavailability. In addition, this review also focuses on specific effects of this carotenoid on eye, skin, liver, and cardiovascular health. Data derived from human interventions, animal models of research, and in vitro and cell studies are discussed in this review.
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Affiliation(s)
- Ana Gabriela Murillo
- Biochemistry Department, University of Costa Rica, San Pedro de Montes de Oca 2060, Costa Rica.
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA.
| | - Siqi Hu
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA.
| | - Maria Luz Fernandez
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA.
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28
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Borel P, Desmarchelier C. Bioavailability of Fat-Soluble Vitamins and Phytochemicals in Humans: Effects of Genetic Variation. Annu Rev Nutr 2019; 38:69-96. [PMID: 30130464 DOI: 10.1146/annurev-nutr-082117-051628] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Recent data have shown that interindividual variability in the bioavailability of vitamins A (β-carotene), D, and E, and carotenoids (lutein and lycopene), as well as that of phytosterols, is modulated by single nucleotide polymorphisms (SNPs). The identified SNPs are in or near genes involved in intestinal uptake or efflux of these compounds, as well as in genes involved in their metabolism and transport. The phenotypic effect of each SNP is usually low, but combinations of SNPs can explain a significant part of the variability. Nevertheless, results from these studies should be considered preliminary since they have not been validated in other cohorts. Guidelines for future studies are provided to ensure that sound associations are elucidated that can be used to build consolidated genetic scores that may allow recommended dietary allowances to be tailored to individuals or groups by taking into account the multiloci genotypic signature of people of different ethnic origin or even of individuals.
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Affiliation(s)
- Patrick Borel
- C2VN, INRA, INSERM, Aix Marseille Université, 13005 Marseille, France; ,
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29
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Strychalski J, Gugołek A, Brym P, Antoszkiewicz Z. Effect of the β-carotene oxygenase 2 genotype on the content of carotenoids, retinol and α-tocopherol in the liver, fat and milk of rabbit does, reproduction parameters and kitten growth. J Anim Physiol Anim Nutr (Berl) 2019; 103:1585-1593. [PMID: 31141232 DOI: 10.1111/jpn.13130] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 03/05/2019] [Accepted: 05/06/2019] [Indexed: 11/30/2022]
Abstract
Mutations in the β-carotene oxygenase 2 (BCO2) gene can impair the function of the enzyme that breaks down carotenoids. As a result, gradual accumulation of unoxidized carotenoids in animal tissues gives them a yellow colour. The aim of the study was to determine the content of carotenoids, retinol and α-tocopherol in the liver, fat and milk of rabbit does with three different genotypes determined by AAT-deletion mutation at codon 248 of the BCO2 gene and to find out whether differences in the concentrations of the above compounds in the tissues and milk of the does affect reproduction parameters and the rearing rate of kittens. The experimental materials comprised 36 does, 12 of each genotype of the BCO2 gene, with their litters. Females with their litters were placed in individual cages, on deep litter. Between days 7 and 13 of lactation, samples of milk were collected from the does. The kittens stayed with their mothers until 35 days of age. After weaning, the does were sacrificed. Tissue samples of liver and perirenal fat were collected for chemical analyses. Additionally, based on samples taken from one female, RNA expression levels were determined from the mammary gland and liver, adipose tissue and skin. It was found that homozygous does with deletion at codon 248 of the BCO2 gene were characterized by considerably higher concentrations of xanthophylls and beta-carotene in the liver, adipose tissue and milk than does with the remaining genotypes. However, the differences in the content of the above compounds in milk had no influence on litter weight or the number and rearing rate of kittens. Additionally, RNA expression of the BCO2 gene was found in the mammary tissue of lactating doe and its level was similar to those noted in the liver and adipose tissue.
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Affiliation(s)
- Janusz Strychalski
- Department of Fur-bearing Animal Breeding and Game Management, Faculty of Animal Bioengineering, University of Warmia and Mazury, Olsztyn, Poland
| | - Andrzej Gugołek
- Department of Fur-bearing Animal Breeding and Game Management, Faculty of Animal Bioengineering, University of Warmia and Mazury, Olsztyn, Poland
| | - Paweł Brym
- Department of Animal Genetics, Faculty of Animal Bioengineering, University of Warmia and Mazury, Olsztyn, Poland
| | - Zofia Antoszkiewicz
- Department of Animal Nutrition and Feed Science, Faculty of Animal Bioengineering, University of Warmia and Mazury, Olsztyn, Poland
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30
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Christensen K, Lawler T, Mares J. Dietary Carotenoids and Non-Alcoholic Fatty Liver Disease among US Adults, NHANES 2003⁻2014. Nutrients 2019; 11:nu11051101. [PMID: 31108934 PMCID: PMC6566688 DOI: 10.3390/nu11051101] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/06/2019] [Accepted: 05/10/2019] [Indexed: 12/17/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is highly prevalent worldwide. Oxidative stress is thought to be a major mechanism, and previous epidemiological studies found higher serum levels of antioxidant carotenoids were associated with reduced risk for development and progression of NAFLD. The objective of this analysis is to examine cross-sectional associations between dietary and serum levels of carotenoids in relation to NAFLD among a nationally representative sample of US adults. We used data from the 2003–2014 National Health and Nutrition Examination Survey (NHANES). Dietary carotenoid intake was estimated from a 24-hour recall, while serum carotenoids were measured from 2003 to 2006. The NAFLD status was determined based upon US Fatty Liver Index (FLI) value ≥30. Regression models were used to estimate associations between carotenoids and NAFLD by controlling for covariates and adjusting for survey design variables. Overall, 33% of participants were classified as having NAFLD. Intake of all carotenoids, with the exception of lycopene, was lower among those with NAFLD. This association was significant for the highest quartiles of intake of α-carotene, β-carotene, β-cryptoxanthin, and lutein/zeaxanthin. For serum measures, the highest level of all carotenoids was associated with significantly reduced odds of NAFLD. In conclusion, higher intake and serum levels of most carotenoids were associated with lower odds of having NAFLD. Identification of such modifiable lifestyle factors provide an opportunity to limit or prevent the disease and its progression.
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Affiliation(s)
- Krista Christensen
- Department of Ophthalmology and Visual Sciences, University of Wisconsin, 610 N. Walnut Street, 1069 WARF Building, Madison, WI 53726, USA;
- Correspondence: ; Tel.: +1-60-8265-3192
| | - Thomas Lawler
- Department of Nutritional Sciences, University of Wisconsin, 1415 Linden Drive, Madison, WI 53706, USA;
| | - Julie Mares
- Department of Ophthalmology and Visual Sciences, University of Wisconsin, 610 N. Walnut Street, 1069 WARF Building, Madison, WI 53726, USA;
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31
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Dietary Antioxidants, Macular Pigment, and Glaucomatous Neurodegeneration: A Review of the Evidence. Nutrients 2019; 11:nu11051002. [PMID: 31052471 PMCID: PMC6567242 DOI: 10.3390/nu11051002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 04/26/2019] [Accepted: 04/29/2019] [Indexed: 12/29/2022] Open
Abstract
Primary open-angle glaucoma (POAG) is a leading cause of irreversible blindness worldwide, and the prevalence is projected to increase to 112 million worldwide by 2040. Intraocular pressure is currently the only proven modifiable risk factor to treat POAG, but recent evidence suggests a link between antioxidant levels and risk for prevalent glaucoma. Studies have found that antioxidant levels are lower in the serum and aqueous humor of glaucoma patients. In this review, we provide a brief overview of the evidence linking oxidative stress to glaucomatous pathology, followed by an in-depth discussion of epidemiological studies and clinical trials of antioxidant consumption and glaucomatous visual field loss. Lastly, we highlight a possible role for antioxidant carotenoids lutein and zeaxanthin, which accumulate in the retina to form macular pigment, as evidence has emerged supporting an association between macular pigment levels and age-related eye disease, including glaucoma. We conclude that the evidence base is inconsistent in showing causal links between dietary antioxidants and glaucoma risk, and that prospective studies are needed to further investigate the possible relationship between macular pigment levels and glaucoma risk specifically.
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32
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Moran NE, Thomas-Ahner JM, Fleming JL, McElroy JP, Mehl R, Grainger EM, Riedl KM, Toland AE, Schwartz SJ, Clinton SK. Single Nucleotide Polymorphisms in β-Carotene Oxygenase 1 are Associated with Plasma Lycopene Responses to a Tomato-Soy Juice Intervention in Men with Prostate Cancer. J Nutr 2019; 149:381-397. [PMID: 30801647 PMCID: PMC6398392 DOI: 10.1093/jn/nxy304] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 09/12/2018] [Accepted: 11/16/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Human plasma and tissue lycopene concentrations are heterogeneous even when consuming controlled amounts of tomato or lycopene. OBJECTIVES Our objective is to determine whether single nucleotide polymorphisms (SNPs) in or near known or putative carotenoid metabolism genes [β-carotene 15,15' monooxygenase 1 (BCO1), scavenger receptor class B type 1 (SCARB1), ATP-binding cassette transporter subfamily A member 1 (ABCA1), microsomal triglyceride transfer protein (MTTP), apolipoprotein B-48, elongation of very long chain fatty acids protein 2 (ELOVL2), and ATP-binding cassette subfamily B member 1 (ABCB1), and an intergenic superoxide dismutase 2, mitochondrial-associated SNP] are predictive of plasma lycopene responses to steady state tomato juice consumption. METHODS Secondary linear regression analyses of data from a dose-escalation study of prostate cancer patients [n = 47; mean ± SEM age: 60 ± 1 y; BMI (in kg/m2): 32 ± 1] consuming 0, 1, or 2 cans of tomato-soy juice/d (163 mL/can; 20.6 mg lycopene 1.2 mg β-carotene/can) for 24 ± 0.7 d before prostatectomy were conducted to explore 11 SNP genotype effects on the change in plasma lycopene and plasma and prostate tissue concentrations of lycopene, β-carotene, phytoene, and phytofluene. RESULTS Two BCO1 SNP genotypes were significant predictors of the change in plasma lycopene, with SNP effects differing in magnitude and direction, depending on the level of juice intake (rs12934922 × diet group P = 0.02; rs6564851 × diet group P = 0.046). Further analyses suggested that plasma β-carotene changes were predicted by BCO1 rs12934922 (P < 0.01), prostate lycopene by trending interaction and main effects of BCO1 SNPs (rs12934922 × diet group P = 0.09; rs12934922 P = 0.02; rs6564851 P = 0.053), and prostate β-carotene by BCO1 SNP interaction and main effects (rs12934922 × diet group P = 0.01; rs12934922 P < 0.01; rs7501331 P = 0.02). CONCLUSIONS In conclusion, SNPs in BCO1 and other genes may modulate human plasma and prostate tissue responses to dietary lycopene intake and warrant validation in larger, human controlled feeding intervention and cohort studies. Genetic variants related to carotenoid metabolism may partially explain heterogeneous human blood and tissue responses and may be critical covariates for population studies and clinical trials. This trial was registered at clinicaltrials.gov as NCT01009736.
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Affiliation(s)
- Nancy E Moran
- Comprehensive Cancer Center,USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX
| | | | | | - Joseph P McElroy
- Comprehensive Cancer Center,Center for Biostatistics, Department of Biomedical Informatics, College of Medicine
| | | | | | - Ken M Riedl
- Comprehensive Cancer Center,College of Food, Agriculture, and Environmental Sciences, Department of Food Science and Technology
| | - Amanda E Toland
- Comprehensive Cancer Center,Department of Cancer Biology and Genetics, College of Medicine
| | - Steven J Schwartz
- Comprehensive Cancer Center,College of Food, Agriculture, and Environmental Sciences, Department of Food Science and Technology
| | - Steven K Clinton
- Comprehensive Cancer Center,Division of Medical Oncology, Department of Internal Medicine, The Ohio State University, Columbus, OH,Address correspondence to SKC (e-mail: )
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33
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Tomato lycopene prevention of alcoholic fatty liver disease and hepatocellular carcinoma development. Chronic Dis Transl Med 2018; 4:211-224. [PMID: 30603740 PMCID: PMC6308920 DOI: 10.1016/j.cdtm.2018.11.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Indexed: 12/18/2022] Open
Abstract
Alcoholic liver disease (ALD) is a major cause of morbidity and mortality worldwide. The incidence of hepatocellular carcinoma (HCC) is increasing in the United States, and chronic, excessive alcohol consumption is responsible for 32%–45% of all the liver cancer cases in the United States. Avoidance of chronic or excessive alcohol intake is the best protection against alcohol-related liver injury; however, the social presence and addictive power of alcohol are strong. Induction of the cytochrome P450 2E1 (CYP2E1) enzyme by chronic and excessive alcohol intake is known to play a role in the pathogenesis of ALD. High intake of tomatoes, rich in the carotenoid lycopene, is associated with a decreased risk of chronic disease. The review will overview the prevention of ALD and HCC through dietary tomato rich in lycopene as an effective intervention strategy and the crucial role of CYP2E1 induction as a molecular target. The review also indicates a need for caution among individuals consuming both alcohol and high dose lycopene as a dietary supplement.
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34
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Xia H, Liu C, Li CC, Fu M, Takahashi S, Hu KQ, Aizawa K, Hiroyuki S, Wu G, Zhao L, Wang XD. Dietary Tomato Powder Inhibits High-Fat Diet-Promoted Hepatocellular Carcinoma with Alteration of Gut Microbiota in Mice Lacking Carotenoid Cleavage Enzymes. Cancer Prev Res (Phila) 2018; 11:797-810. [PMID: 30446518 DOI: 10.1158/1940-6207.capr-18-0188] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 08/28/2018] [Accepted: 10/02/2018] [Indexed: 11/16/2022]
Abstract
Both incidence and death rate due to liver cancer have increased in the United States. Higher consumption of lycopene-rich tomato and tomato products is associated with a decreased risk of cancers. β-Carotene-15, 15'-oxygenase (BCO1), and β-carotene-9', 10'-oxygenase (BCO2) cleave lycopene to produce bioactive apo-lycopenoids. Although BCO1/BCO2 polymorphisms affect human and animal lycopene levels, whether dietary tomato consumption can inhibit high-fat diet (HFD)-promoted hepatocellular carcinoma (HCC) development and affect gut microbiota in the absence of BCO1/BCO2 is unclear. BCO1/BCO2 double knockout mice were initiated with a hepatic carcinogen (diethylnitrosamine) at 2 weeks of age. At 6 weeks of age, the mice were randomly assigned to an HFD (60% of energy as fat) with or without tomato powder (TP) feeding for 24 weeks. Results showed that TP feeding significantly decreased HCC development (67%, 83%, and 95% reduction in incidence, multiplicity, and tumor volume, respectively, P < 0.05). Protective effects of TP feeding were associated with (1) decreased hepatic inflammatory foci development and mRNA expression of proinflammatory biomarkers (IL1β, IL6, IL12α, monocyte chemoattractant protein-1, and inducible NO synthase); (2) increased mRNA expression of deacetylase sirtuin 1 and nicotinamide phosphoribosyltransferase involving NAD+ production; and (3) increased hepatic circadian clock genes (circadian locomotor output cycles kaput, period 2, and cryptochrome-2, Wee1). Furthermore, TP feeding increased gut microbial richness and diversity, and significantly decreased the relative abundance of the genus Clostridium and Mucispirillum, respectively. The present study demonstrates that dietary tomato feeding independent of carotenoid cleavage enzymes prevents HFD-induced inflammation with potential modulating gut microbiota and inhibits HFD-promoted HCC development.
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Affiliation(s)
- Hui Xia
- Nutrition and Cancer Biology Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts
| | - Chun Liu
- Nutrition and Cancer Biology Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts
| | - Cheng-Chung Li
- Nutrition and Cancer Biology Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts
| | - Maobin Fu
- Nature and Wellness Research Department, Research and Development Division, Kagome Co., Ltd., Tochigi, Japan
| | - Shingo Takahashi
- Nature and Wellness Research Department, Research and Development Division, Kagome Co., Ltd., Tochigi, Japan
| | - Kang-Quan Hu
- Nutrition and Cancer Biology Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts
| | - Koichi Aizawa
- Nutrition and Cancer Biology Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts.,Nature and Wellness Research Department, Research and Development Division, Kagome Co., Ltd., Tochigi, Japan
| | - Suganuma Hiroyuki
- Nature and Wellness Research Department, Research and Development Division, Kagome Co., Ltd., Tochigi, Japan
| | - Guojun Wu
- Department of Biochemistry and Microbiology, School of Environmental and Biological Sciences, Rutgers University, New Brunswick, New Jersey
| | - Liping Zhao
- Department of Biochemistry and Microbiology, School of Environmental and Biological Sciences, Rutgers University, New Brunswick, New Jersey
| | - Xiang-Dong Wang
- Nutrition and Cancer Biology Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts.
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Desmarchelier C, Landrier JF, Borel P. Genetic factors involved in the bioavailability of tomato carotenoids. Curr Opin Clin Nutr Metab Care 2018; 21:489-497. [PMID: 30277929 DOI: 10.1097/mco.0000000000000515] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
PURPOSE OF REVIEW To provide an update on the genetic factors recently associated with the interindividual variability of tomato carotenoid bioavailability. RECENT FINDINGS Several clinical studies have demonstrated that the main carotenoids found in tomatoes (lycopene, phytoene, phytofluene, β-carotene, lutein) all display relatively large interindividual variabilities of their bioavailability, with coefficients of variations more than 70%. The bioavailability of the parent molecules, and the blood/tissue appearance of their metabolites, is modulated by numerous proteins, involved in intestinal absorption and metabolism, blood lipoprotein transport or tissue uptake. Several single nucleotide polymorphisms (SNPs) have been associated with the interindividual variability of lycopene, lutein and β-carotene bioavailability, with six genes consistently shared between the three carotenoids, and in particular one SNP in ELOVL fatty acid elongase 2. The effects of the genetic variants taken separately are relatively low, that is each variant is usually associated with only a few percentage of the variability but multivariate analyses suggest that the additive effect of several genetic variants can explain a significant fraction of tomato carotenoid bioavailability. SUMMARY Additional studies are needed to improve our knowledge of the genetic determinants of tomato carotenoid bioavailability but progress in this field could one day allow nutritionists to provide more personalized dietary recommendations.
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Lucas R, Mihály J, Lowe GM, Graham DL, Szklenar M, Szegedi A, Töröcsik D, Rühl R. Reduced Carotenoid and Retinoid Concentrations and Altered Lycopene Isomer Ratio in Plasma of Atopic Dermatitis Patients. Nutrients 2018; 10:E1390. [PMID: 30275368 PMCID: PMC6213761 DOI: 10.3390/nu10101390] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 09/11/2018] [Accepted: 09/22/2018] [Indexed: 01/04/2023] Open
Abstract
Carotenoids and retinoids are known to alter the allergic response with important physiological roles in the skin and the immune system. In the human organism various carotenoids are present, some of which are retinoid precursors. The bioactive derivatives of these retinoids are the retinoic acids, which can potently activate nuclear hormone receptors such as the retinoic acid receptor and the retinoid X receptor. In this study, we aimed to assess how plasma carotenoid and retinoid concentrations along with the ratio of their isomers are altered in atopic dermatitis (AD) patients (n = 20) compared to healthy volunteers (HV, n = 20). The study indicated that plasma levels of the carotenoids lutein (HV 198 ± 14 ng/mL, AD 158 ± 12 ng/mL, p = 0.02; all values in mean ± SEM), zeaxanthin (HV 349 ± 30 ng/mL, AD 236 ± 18 ng/mL, p ≤ 0.01), as well as the retinoids retinol (HV 216 ± 20 ng/mL, AD 167 ± 17 ng/mL, p = 0.04) and all-trans-retinoic acid (HV 1.1 ± 0.1 ng/mL, AD 0.7 ± 0.1 ng/mL, p = 0.04) were significantly lower in the AD-patients, while lycopene isomers, α-carotene, and β-carotene levels were comparable to that determined in the healthy volunteers. In addition, the ratios of 13-cis- vs. all-trans-lycopene (HV 0.31 ± 0.01, AD 0.45 ± 0.07, p = 0.03) as well as 13-cis- vs. all-trans-retinoic acid (HV 1.4 ± 0.2, AD 2.6 ± 0.6, p = 0.03) were increased in the plasma of AD-patients indicating an AD-specific 13-cis-isomerisation. A positive correlation with SCORAD was calculated with 13-cis- vs. all-trans-lycopene ratio (r = 0.40, p = 0.01), while a negative correlation was observed with zeaxanthin plasma levels (r = -0.42, p = 0.01). Based on our results, we conclude that in the plasma of AD-patients various carotenoids and retinoids are present at lower concentrations, while the ratio of selected lycopene isomers also differed in the AD-patient group. An increase in plasma isomers of both lycopene and retinoic acid may cause an altered activation of nuclear hormone receptor signaling pathways and thus may be partly responsible for the AD-phenotype.
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Affiliation(s)
- Renata Lucas
- Department of Dermatology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary.
| | - Johanna Mihály
- Department of Biochemistry and Molecular Biology, University of Debrecen, 4032 Debrecen, Hungary.
| | - Gordon M Lowe
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK.
| | - Daniel L Graham
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK.
- Faculty of Science, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK.
| | | | - Andrea Szegedi
- Department of Dermatology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary.
| | - Daniel Töröcsik
- Department of Dermatology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary.
| | - Ralph Rühl
- Department of Biochemistry and Molecular Biology, University of Debrecen, 4032 Debrecen, Hungary.
- Paprika Bioanalytics BT, 4002 Debrecen, Hungary.
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Categorical perception of colour signals in a songbird. Nature 2018; 560:365-367. [DOI: 10.1038/s41586-018-0377-7] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 06/21/2018] [Indexed: 11/08/2022]
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Moran NE, Mohn ES, Hason N, Erdman JW, Johnson EJ. Intrinsic and Extrinsic Factors Impacting Absorption, Metabolism, and Health Effects of Dietary Carotenoids. Adv Nutr 2018; 9:465-492. [PMID: 30032230 PMCID: PMC6054194 DOI: 10.1093/advances/nmy025] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 11/06/2017] [Accepted: 03/22/2018] [Indexed: 12/16/2022] Open
Abstract
Carotenoids are orange, yellow, and red lipophilic pigments present in many fruit and vegetables, as well as other food groups. Some carotenoids contribute to vitamin A requirements. The consumption and blood concentrations of specific carotenoids have been associated with reduced risks of a number of chronic conditions. However, the interpretation of large, population-based observational and prospective clinical trials is often complicated by the many extrinsic and intrinsic factors that affect the physiologic response to carotenoids. Extrinsic factors affecting carotenoid bioavailability include food-based factors, such as co-consumed lipid, food processing, and molecular structure, as well as environmental factors, such as interactions with prescription drugs, smoking, or alcohol consumption. Intrinsic, physiologic factors associated with blood and tissue carotenoid concentrations include age, body composition, hormonal fluctuations, and variation in genes associated with carotenoid absorption and metabolism. To most effectively investigate carotenoid bioactivity and to utilize blood or tissue carotenoid concentrations as biomarkers of intake, investigators should either experimentally or statistically control for confounding variables affecting the bioavailability, tissue distribution, and metabolism of carotene and xanthophyll species. Although much remains to be investigated, recent advances have highlighted that lipid co-consumption, baseline vitamin A status, smoking, body mass and body fat distribution, and genetics are relevant covariates for interpreting blood serum or plasma carotenoid responses. These and other intrinsic and extrinsic factors are discussed, highlighting remaining gaps in knowledge and opportunities for future research. To provide context, we review the state of knowledge with regard to the prominent health effects of carotenoids.
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Affiliation(s)
- Nancy E Moran
- USDA–Agricultural Research Service Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX
| | - Emily S Mohn
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA
| | - Noor Hason
- USDA–Agricultural Research Service Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX
| | - John W Erdman
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL
| | - Elizabeth J Johnson
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA
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Toti E, Chen CYO, Palmery M, Villaño Valencia D, Peluso I. Non-Provitamin A and Provitamin A Carotenoids as Immunomodulators: Recommended Dietary Allowance, Therapeutic Index, or Personalized Nutrition? OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:4637861. [PMID: 29861829 PMCID: PMC5971251 DOI: 10.1155/2018/4637861] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 04/22/2018] [Indexed: 12/14/2022]
Abstract
Vegetables and fruits contain non-provitamin A (lycopene, lutein, and zeaxanthin) and provitamin A (β-carotene, β-cryptoxanthin, and α-carotene) carotenoids. Within these compounds, β-carotene has been extensively studied for its health benefits, but its supplementation at doses higher than recommended intakes induces adverse effects. β-Carotene is converted to retinoic acid (RA), a well-known immunomodulatory molecule. Human interventions suggest that β-carotene and lycopene at pharmacological doses affect immune functions after a depletion period of low carotenoid diet. However, these effects appear unrelated to carotenoids and retinol levels in plasma. Local production of RA in the gut-associated lymphoid tissue, as well as the dependency of RA-induced effects on local inflammation, suggests that personalized nutrition/supplementation should be considered in the future. On the other hand, the differential effect of RA and lycopene on transforming growth factor-beta suggests that lycopene supplementation could improve immune functions without increasing risk for cancers. However, such preclinical evidence must be confirmed in human interventions before any recommendations can be made.
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Affiliation(s)
- Elisabetta Toti
- Research Centre for Food and Nutrition, Council for Agricultural Research and Economics (CREA-AN), Rome, Italy
| | - C.-Y. Oliver Chen
- Antioxidants Research Laboratory, Jean Mayer USDA Human Nutrition Center on Aging, Tufts University, Boston, MA, USA
| | - Maura Palmery
- Department of Physiology and Pharmacology, “V. Erspamer”, La Sapienza University of Rome, Rome, Italy
| | | | - Ilaria Peluso
- Research Centre for Food and Nutrition, Council for Agricultural Research and Economics (CREA-AN), Rome, Italy
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A non-invasive assessment of skin carotenoid status through reflection spectroscopy is a feasible, reliable and potentially valid measure of fruit and vegetable consumption in a diverse community sample. Public Health Nutr 2018; 21:1664-1670. [PMID: 29455692 DOI: 10.1017/s136898001700430x] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE To assess the feasibility, reliability and validity of reflection spectroscopy (RS) to assess skin carotenoids in a racially diverse sample. DESIGN Study 1 was a cross-sectional study of corner store customers (n 479) who completed the National Cancer Institute Fruit and Vegetable Screener as well as RS measures. Feasibility was assessed by examining the time it took to complete three RS measures, reliability was assessed by examining the variation between three RS measures, and validity was examined by correlation with self-reported fruit and vegetable consumption. In Study 2, validity was assessed in a smaller sample (n 30) by examining associations between RS measures and dietary carotenoids, fruits and vegetables as calculated from a validated FFQ and plasma carotenoids. SETTING Eastern North Carolina, USA. RESULTS It took on average 94·0 s to complete three RS readings per person. The average variation between three readings for each participant was 6·8 %. In Study 2, in models adjusted for age, race and sex, there were statistically significant associations between RS measures and (i) FFQ-estimated carotenoid intake (P<0·0001); (ii) FFQ-estimated fruit and vegetable consumption (P<0·010); and (iii) plasma carotenoids (P<0·0001). CONCLUSIONS RS is a potentially improved method to approximate fruit and vegetable consumption among diverse participants. RS is portable and easy to use in field-based public health nutrition settings. More research is needed to investigate validity and sensitivity in diverse populations.
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Desmarchelier C, Borel P. Overview of carotenoid bioavailability determinants: From dietary factors to host genetic variations. Trends Food Sci Technol 2017. [DOI: 10.1016/j.tifs.2017.03.002] [Citation(s) in RCA: 148] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Bohn T, Carriere F, Day L, Deglaire A, Egger L, Freitas D, Golding M, Le Feunteun S, Macierzanka A, Menard O, Miralles B, Moscovici A, Portmann R, Recio I, Rémond D, Santé-Lhoutelier V, Wooster TJ, Lesmes U, Mackie AR, Dupont D. Correlation between in vitro and in vivo data on food digestion. What can we predict with static in vitro digestion models? Crit Rev Food Sci Nutr 2017; 58:2239-2261. [DOI: 10.1080/10408398.2017.1315362] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- T. Bohn
- Luxembourg Institute of Health, Strassen, Luxembourg
| | | | - L. Day
- Agresearch, Palmerston North, New Zealand
| | | | - L. Egger
- Agroscope, Institute for Food Sciences, Bern, Switzerland
| | | | - M. Golding
- Massey University, Palmerston North, New Zealand
| | | | | | | | | | - A. Moscovici
- Technion—Israel Institute of Technology, Haifa, Israel
| | - R. Portmann
- Agroscope, Institute for Food Sciences, Bern, Switzerland
| | | | | | | | - T. J. Wooster
- Nestlé Research Centre, Nestec S.A., Lausanne, Switzerland
| | - U. Lesmes
- Technion—Israel Institute of Technology, Haifa, Israel
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Personalised Interventions-A Precision Approach for the Next Generation of Dietary Intervention Studies. Nutrients 2017; 9:nu9080847. [PMID: 28792454 PMCID: PMC5579640 DOI: 10.3390/nu9080847] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Revised: 07/23/2017] [Accepted: 08/01/2017] [Indexed: 12/13/2022] Open
Abstract
Diet is a key modifiable risk factor for non-communicable diseases. However, we currently are not benefitting from the full potential of its protective effects. This is due to a number of reasons, including high individual variability in response to certain diets. It is now well acknowledged that in order to gain the full benefit of dietary regimes it is essential to take into account individual responses. With this in mind, the present review examines the concept of precision nutrition and the performance of n-of-1 studies, and discusses the development of certain approaches that will be critical for development of the concepts.
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Abstract
Current evidence suggests lutein and its isomers play important roles in ocular development in utero and throughout the life span, in vision performance in young and later adulthood, and in lowering risk for the development of common age-related eye diseases in older age. These xanthophyll (oxygen-containing) carotenoids are found in a wide variety of vegetables and fruits, and they are present in especially high concentrations in leafy green vegetables. Additionally, egg yolks and human milk appear to be bioavailable sources. The prevalence of lutein, zeaxanthin, and meso-zeaxanthin in supplements is increasing. Setting optimal and safe ranges of intake requires additional research, particularly in pregnant and lactating women. Accumulating evidence about variable interindividual response to dietary intake of these carotenoids, based on genetic or metabolic influences, suggests that there may be subgroups that benefit from higher levels of intake and/or alternate strategies to improve lutein and zeaxanthin status.
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Affiliation(s)
- Julie Mares
- Department of Ophthalmology and Visual Sciences, University of Wisconsin, Madison, Wisconsin 53726-2336;
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45
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Soukoulis C, Bohn T. A comprehensive overview on the micro- and nano-technological encapsulation advances for enhancing the chemical stability and bioavailability of carotenoids. Crit Rev Food Sci Nutr 2017; 58:1-36. [DOI: 10.1080/10408398.2014.971353] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Christos Soukoulis
- Environmental Research and Innovation Department, Luxembourg Institute of Science and Technology, Belvaux, Luxembourg
| | - Torsten Bohn
- Environmental Research and Innovation Department, Luxembourg Institute of Science and Technology, Belvaux, Luxembourg
- Department of Population Health, Luxembourg Institute of Health, Strassen, Luxembourg
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Farook VS, Reddivari L, Mummidi S, Puppala S, Arya R, Lopez-Alvarenga JC, Fowler SP, Chittoor G, Resendez RG, Kumar BM, Comuzzie AG, Curran JE, Lehman DM, Jenkinson CP, Lynch JL, DeFronzo RA, Blangero J, Hale DE, Duggirala R, Vanamala JKP. Genetics of serum carotenoid concentrations and their correlation with obesity-related traits in Mexican American children. Am J Clin Nutr 2017; 106:52-58. [PMID: 28515064 PMCID: PMC5486195 DOI: 10.3945/ajcn.116.144006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 03/31/2017] [Indexed: 12/22/2022] Open
Abstract
Background: Dietary intake of phytonutrients present in fruits and vegetables, such as carotenoids, is associated with a lower risk of obesity and related traits, but the impact of genetic variation on these associations is poorly understood, especially in children.Objective: We estimated common genetic influences on serum carotenoid concentrations and obesity-related traits in Mexican American (MA) children.Design: Obesity-related data were obtained from 670 nondiabetic MA children, aged 6-17 y. Serum α- and β-carotenoid concentrations were measured in ∼570 (α-carotene in 565 and β-carotene in 572) of these children with the use of an ultraperformance liquid chromatography-photodiode array. We determined heritabilities for both carotenoids and examined their genetic relation with 10 obesity-related traits [body mass index (BMI), waist circumference (WC), high-density lipoprotein (HDL) cholesterol, triglycerides, fat mass (FM), systolic and diastolic blood pressure, fasting insulin and glucose, and homeostasis model assessment of insulin resistance] by using family data and a variance components approach. For these analyses, carotenoid values were inverse normalized, and all traits were adjusted for significant covariate effects of age and sex.Results: Carotenoid concentrations were highly heritable and significant [α-carotene: heritability (h2) = 0.81, P = 6.7 × 10-11; β-carotene: h2 = 0.90, P = 3.5 × 10-15]. After adjusting for multiple comparisons, we found significant (P ≤ 0.05) negative phenotypic correlations between carotenoid concentrations and the following traits: BMI, WC, FM, and triglycerides (range: α-carotene = -0.19 to -0.12; β-carotene = -0.24 to -0.13) and positive correlations with HDL cholesterol (α-carotene = 0.17; β-carotene = 0.24). However, when the phenotypic correlations were partitioned into genetic and environmental correlations, we found marginally significant (P = 0.051) genetic correlations only between β-carotene and BMI (-0.27), WC (-0.30), and HDL cholesterol (0.31) after accounting for multiple comparisons. None of the environmental correlations were significant.Conclusions: The findings from this study suggest that the serum carotenoid concentrations were under strong additive genetic influences based on variance components analyses, and that the common genetic factors may influence β-carotene and obesity and lipid traits in MA children.
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Affiliation(s)
- Vidya S Farook
- South Texas Diabetes and Obesity Institute, University of Texas Rio Grande Valley, Edinburg, TX; Departments of
| | | | - Srinivas Mummidi
- South Texas Diabetes and Obesity Institute, University of Texas Rio Grande Valley, Edinburg, TX; Departments of
| | - Sobha Puppala
- Department of Genetics, Texas Biomedical Research Institute, San Antonio, TX; Departments of
| | - Rector Arya
- South Texas Diabetes and Obesity Institute, University of Texas Rio Grande Valley, Edinburg, TX; Departments of
| | - Juan Carlos Lopez-Alvarenga
- South Texas Diabetes and Obesity Institute, University of Texas Rio Grande Valley, Edinburg, TX; Departments of
| | | | - Geetha Chittoor
- Department of Nutrition, University of North Carolina at Chapel Hill, Kannapolis, NC; and
| | - Roy G Resendez
- South Texas Diabetes and Obesity Institute, University of Texas Rio Grande Valley, Edinburg, TX; Departments of
| | - Birunda Mohan Kumar
- Department of Food Science and Human Nutrition, Colorado State University, Fort Collins, CO
| | - Anthony G Comuzzie
- Department of Genetics, Texas Biomedical Research Institute, San Antonio, TX; Departments of
| | - Joanne E Curran
- South Texas Diabetes and Obesity Institute, University of Texas Rio Grande Valley, Edinburg, TX; Departments of
| | | | - Christopher P Jenkinson
- South Texas Diabetes and Obesity Institute, University of Texas Rio Grande Valley, Edinburg, TX; Departments of
| | - Jane L Lynch
- Pediatrics, University of Texas Health San Antonio, San Antonio, TX
| | | | - John Blangero
- South Texas Diabetes and Obesity Institute, University of Texas Rio Grande Valley, Edinburg, TX; Departments of
| | - Daniel E Hale
- Pediatrics, University of Texas Health San Antonio, San Antonio, TX
| | - Ravindranath Duggirala
- South Texas Diabetes and Obesity Institute, University of Texas Rio Grande Valley, Edinburg, TX; Departments of
| | - Jairam KP Vanamala
- Food Science and,Center for Molecular Immunology and Infectious Diseases, Penn State University, University Park, PA
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No influence of supplemental dietary calcium intake on the bioavailability of spinach carotenoids in humans. Br J Nutr 2017; 117:1560-1569. [DOI: 10.1017/s0007114517001532] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
AbstractDietary carotenoid intake, especially from fruits and vegetables, has been associated with a reduced incidence of several chronic diseases. However, its bioavailability can vary, depending on the food matrix and host factors. Recently, it has been suggested that divalent minerals negatively impinge on carotenoid bioavailability by reducing bile-salt and non-esterified fatty-acid levels in the gut, which normally aid in emulsifying carotenoids. The aim of the present study was to investigate whether supplemental Ca would negatively influence carotenoid absorption in humans. A total of twenty-five healthy, non-obese men (age: 20–46 years, BMI<30 kg/m2) were recruited for this postprandial, randomised, crossover, double-blinded trial. Following a randomised block design, each participant received (after 2-week washout periods), on three occasions separated by 1 week, 270 g of spinach-based meals (8·61 (sd 1·08) mg carotenoids/100 g fresh weight), supplemented with 0, 500 or 1000 mg of Ca (as calcium carbonate), with each participant acting as his or her own control. Blood samples were collected at regular postprandial intervals for up to 10 h following test meal intake, and standardised lunches were served. TAG-rich lipoprotein fractions were separated and carotenoid concentrations determined. AUC for meals without supplemented Ca were 22·72 (sem 2·78) nmol×h/l (lutein), 0·19 (sem 3·90) nmol×h/l (β-carotene) and 2·80 (sem 1·75) nmol×h/l (β-cryptoxanthin). No significant influence of supplementation with either 500 or 1000 mg of supplemental Ca was found. In conclusion, Ca – the most abundant divalent mineral in the diet – given at high but physiological concentrations, does not appear to have repercussions on the bioavailability of carotenoids from a spinach-based meal.
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Manach C, Milenkovic D, Van de Wiele T, Rodriguez‐Mateos A, de Roos B, Garcia‐Conesa MT, Landberg R, Gibney ER, Heinonen M, Tomás‐Barberán F, Morand C. Addressing the inter-individual variation in response to consumption of plant food bioactives: Towards a better understanding of their role in healthy aging and cardiometabolic risk reduction. Mol Nutr Food Res 2017; 61:1600557. [PMID: 27687784 PMCID: PMC5484307 DOI: 10.1002/mnfr.201600557] [Citation(s) in RCA: 143] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Revised: 09/08/2016] [Accepted: 09/13/2016] [Indexed: 12/21/2022]
Abstract
Bioactive compounds in plant-based foods have health properties that contribute to the prevention of age-related chronic diseases, particularly cardiometabolic disorders. Conclusive proof and understanding of these benefits in humans is essential in order to provide effective dietary recommendations but, so far, the evidence obtained from human intervention trials is limited and contradictory. This is partly due to differences between individuals in the absorption, distribution, metabolism and excretion of bioactive compounds, as well as to heterogeneity in their biological response regarding cardiometabolic health outcomes. Identifying the main factors underlying inter-individual differences, as well as developing new and innovative methodologies to account for such variability constitute an overarching goal to ultimately optimize the beneficial health effects of plant food bioactives for each and every one of us. In this respect, this position paper from the COST Action FA1403-POSITIVe examines the main factors likely to affect the individual responses to consumption of plant food bioactives and presents perspectives for assessment and consideration of inter-individual variability.
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Affiliation(s)
- Claudine Manach
- INRA, UMR 1019, UNH, CRNH Auvergne, F‐63000 Clermont‐Ferrand; Clermont UniversitéUniversité d'AuvergneUnité de Nutrition HumaineBP 10448F‐63000Clermont‐FerrandFrance
| | - Dragan Milenkovic
- INRA, UMR 1019, UNH, CRNH Auvergne, F‐63000 Clermont‐Ferrand; Clermont UniversitéUniversité d'AuvergneUnité de Nutrition HumaineBP 10448F‐63000Clermont‐FerrandFrance
| | - Tom Van de Wiele
- Center for Microbial Ecology and Technology (CMET)Ghent UniversityGhentBelgium
| | - Ana Rodriguez‐Mateos
- Division of Cardiology, Pulmonology and Vascular MedicineMedical FacultyUniversity of DüsseldorfGermany
| | - Baukje de Roos
- Rowett Institute of Nutrition and HealthUniversity of AberdeenAberdeenUK
| | - Maria Teresa Garcia‐Conesa
- Research Group on Quality, Safety and Bioactivity of Plant FoodsCEBAS‐CSICCampus de EspinardoMurciaSpain
| | - Rikard Landberg
- Department of Food ScienceSwedish University of Agricultural SciencesUppsalaSweden
- Nutritional Epidemiology UnitInstitute of Environmental MedicineKarolinska InstitutetSolnaSweden
| | - Eileen R. Gibney
- UCD Institute of Food and HealthUniversity College DublinDublinRepublic of Ireland
| | - Marina Heinonen
- Department of Food and Environmental SciencesFood ChemistryUniversity of HelsinkiFinland
| | - Francisco Tomás‐Barberán
- Research Group on Quality, Safety and Bioactivity of Plant FoodsCEBAS‐CSICCampus de EspinardoMurciaSpain
| | - Christine Morand
- INRA, UMR 1019, UNH, CRNH Auvergne, F‐63000 Clermont‐Ferrand; Clermont UniversitéUniversité d'AuvergneUnité de Nutrition HumaineBP 10448F‐63000Clermont‐FerrandFrance
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Bohn T, Desmarchelier C, Dragsted LO, Nielsen CS, Stahl W, Rühl R, Keijer J, Borel P. Host-related factors explaining interindividual variability of carotenoid bioavailability and tissue concentrations in humans. Mol Nutr Food Res 2017; 61:1600685. [PMID: 28101967 PMCID: PMC5516247 DOI: 10.1002/mnfr.201600685] [Citation(s) in RCA: 156] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 12/19/2016] [Accepted: 01/04/2017] [Indexed: 12/14/2022]
Abstract
Carotenoid dietary intake and their endogenous levels have been associated with a decreased risk of several chronic diseases. There are indications that carotenoid bioavailability depends, in addition to the food matrix, on host factors. These include diseases (e.g. colitis), life-style habits (e.g. smoking), gender and age, as well as genetic variations including single nucleotide polymorphisms that govern carotenoid metabolism. These are expected to explain interindividual differences that contribute to carotenoid uptake, distribution, metabolism and excretion, and therefore possibly also their association with disease risk. For instance, digestion enzymes fostering micellization (PNLIP, CES), expression of uptake/efflux transporters (SR-BI, CD36, NPC1L1), cleavage enzymes (BCO1/2), intracellular transporters (FABP2), secretion into chylomicrons (APOB, MTTP), carotenoid metabolism in the blood and liver (LPL, APO C/E, LDLR), and distribution to target tissues such as adipose tissue or macula (GSTP1, StARD3) depend on the activity of these proteins. In addition, human microbiota, e.g. via altering bile-acid concentrations, may play a role in carotenoid bioavailability. In order to comprehend individual, variable responses to these compounds, an improved knowledge on intra-/interindividual factors determining carotenoid bioavailability, including tissue distribution, is required. Here, we highlight the current knowledge on factors that may explain such intra-/interindividual differences.
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Affiliation(s)
- Torsten Bohn
- Luxembourg Institute of HealthStrassenLuxembourg
| | | | - Lars O. Dragsted
- Department of Nutrition, Exercise and SportsUniversity of CopenhagenFrederiksberg CDenmark
| | - Charlotte S. Nielsen
- Department of Nutrition, Exercise and SportsUniversity of CopenhagenFrederiksberg CDenmark
| | - Wilhelm Stahl
- Institute of Biochemistry and Molecular Biology IHeinrich‐Heine‐University DüsseldorfDüsseldorfGermany
| | - Ralph Rühl
- Paprika Bioanalytics BTDebrecenHungary
- MTA‐DE Public Health Research Group of the Hungarian Academy of SciencesFaculty of Public HealthUniversity of DebrecenDebrecenHungary
| | - Jaap Keijer
- Human and Animal PhysiologyWageningen UniversityWageningenThe Netherlands
| | - Patrick Borel
- NORT, Aix‐Marseille Université, INRAINSERMMarseilleFrance
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Ablation of β,β-carotene-9',10'-oxygenase 2 remodels the hypothalamic metabolome leading to metabolic disorders in mice. J Nutr Biochem 2017; 46:74-82. [PMID: 28482236 DOI: 10.1016/j.jnutbio.2017.02.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 02/10/2017] [Accepted: 02/23/2017] [Indexed: 01/07/2023]
Abstract
β,β-Carotene-9',10'-oxygenase 2 (BCO2) is a protein localized to the inner membrane of mitochondria. It was initially discovered as an enzyme that catalyzes the asymmetric cleavage of carotenoids. Systemic depletion of BCO2 causes increased food intake and impaired hepatic lipid metabolism in mice. The aim of this current study was to determine the extent to which BCO2 exerts its role in hypothalamic nutrient metabolism and feeding behavior through remodeling the hypothalamic metabolome in mice. Male BCO2 knockout (KO) and the isogenic wild-type 129S6 (WT) mice at 6 weeks of age were used for metabolic and cytokine and hypothalamic metabolomics and biochemical analysis. Compared to the WT, BCO2 KO mice exhibited widespread disruptions in metabolism and metabolite homeostasis, an increase in fasting blood glucose, a decrease in circulating glucagon and leptin, an elevation of plasma interleukin 1 beta and tumor necrosis factor alpha, and impaired AMP-activated protein kinase signaling. The global hypothalamic metabolomic results revealed that depletion of BCO2 resulted in striking metabolic changes, including suppression of long-chain fatty acids transport into mitochondria, inhibition of the metabolism of dipeptides and sulfur-containing amino acids, and stimulation of local oxidative stress and inflammation in the hypothalamus of BCO2 KO mice. These findings suggest that BCO2 regulates hypothalamic mitochondrial function, nutrient metabolism, and local oxidative stress and inflammation. Complex interplay between the hormone signaling and impaired lipid and glucose metabolism could account for initiation of oxidative stress, inflammation and eventual metabolic disorders in BCO2 KO mice.
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