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Lutein protects against β-amyloid peptide-induced oxidative stress in cerebrovascular endothelial cells through modulation of Nrf-2 and NF-κb. Cell Biol Toxicol 2016; 33:57-67. [PMID: 27878403 DOI: 10.1007/s10565-016-9360-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Accepted: 09/04/2016] [Indexed: 02/06/2023]
Abstract
In the present study, we determined the protective role of lutein against Aβ 25-35 peptide-induced oxidative stress and apoptosis in bEND.3 cells. Cell viability was determined through MTT assay. Reactive oxygen species, lipid peroxides, and antioxidant enzyme activities were evaluated to analyze the oxidative stress status. NF-κB and Nrf-2 downstream target protein expressions were determined through western blot. Apoptosis was analyzed through caspase activities and subG1 accumulation. The results showed that Aβ 25-35 significantly increased (p < 0.001) oxidative stress biomarkers. Aβ 25-35 significantly up-regulated NF-κB nuclear expression and down-regulated Nrf-2 levels and HO-1 and, NQO-1 expressions. Aβ 25-35 induced apoptosis through decreasing mitochondrial membrane potential and increasing caspase 9 and 3 activities. Lutein pre-treatment significantly (p < 0.001) improved cell viability and decreased ROS levels (p < 0.001) and lipid peroxidation (p < 0.01). Lutein prevented Aβ 25-35-induced NF-κB nuclear expressions and up-regulated Nrf-2 expressions. Further, lutein also improved mitochondrial membrane potential and down-regulated caspase activities and subG1 accumulation. The present study shows the protective role of lutein against Aβ 25-35-induced toxicity by modulating Nrf-2 and NF-κB expressions in cerebrovascular endothelial cells.
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202
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Murillo AG, DiMarco DM, Fernandez ML. The Potential of Non-Provitamin A Carotenoids for the Prevention and Treatment of Non-Alcoholic Fatty Liver Disease. BIOLOGY 2016; 5:biology5040042. [PMID: 27834813 PMCID: PMC5192422 DOI: 10.3390/biology5040042] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 10/24/2016] [Accepted: 11/03/2016] [Indexed: 12/13/2022]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is an obesity-associated spectrum of comorbidities defined by the presence of metabolic dysfunction, oxidative stress, inflammation, and fibrosis in the liver. If left untreated, NAFLD can progress to cirrhosis, liver failure, or hepatocellular carcinoma. NAFLD is recognized as the most common liver disease in the United States, affecting around 30% of the population. Identification of dietary components capable of reducing or preventing NAFLD is therefore essential to battle this condition. Dietary carotenoids including astaxanthin, lycopene, lutein, and zeaxanthin have been demonstrated to be potent antioxidants as well as to exhibit anti-inflammatory effects. Many studies report the protective effect(s) of these carotenoids against different conditions such as atherosclerosis, diabetic complications, age-related macular degeneration, and liver diseases. In this review, we will focus on the effects of these carotenoids in the prevention or reduction of NAFLD as seen in epidemiological observations and clinical trials, as well as the suggested mechanism of action derived from animal and cell studies.
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Affiliation(s)
- Ana Gabriela Murillo
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA.
| | - Diana M DiMarco
- 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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203
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Gumus CE, Davidov-Pardo G, McClements DJ. Lutein-enriched emulsion-based delivery systems: Impact of Maillard conjugation on physicochemical stability and gastrointestinal fate. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2016.03.021] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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204
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Yoshizako H, Hara K, Takai Y, Kaidzu S, Obana A, Ohira A. Comparison of macular pigment and serum lutein concentration changes between free lutein and lutein esters supplements in Japanese subjects. Acta Ophthalmol 2016; 94:e411-6. [PMID: 27273910 DOI: 10.1111/aos.13106] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Accepted: 03/30/2016] [Indexed: 01/06/2023]
Abstract
PURPOSE To compare changes in macular pigment optical density (MPOD) and serum lutein concentration between free lutein and lutein esters supplements in healthy Japanese individuals. METHODS Twenty healthy subjects (age range, 22-47 years) were recruited into this prospective, randomized, doubled-blind comparative study. Individuals were evenly divided into two groups: free lutein group, supplementation with 10 mg of free lutein; or lutein esters group, supplementation with 20 mg of lutein esters equivalent to 10 mg of free lutein. Each participant took either type of oral lutein daily for 3 months. The serum lutein concentrations and MPOD levels were measured at baseline and 3 and 6 months after the start of supplementation. RESULTS There were no significant differences in the serum lutein concentrations and MPOD levels at baseline between the groups. The increased serum lutein concentration and MPOD levels at 3 months were respectively, 89% and 38% in the free lutein group and 97% and 17% in the lutein esters group. The serum lutein concentrations in both groups and MPOD levels in the free lutein group increased significantly (p < 0.05) from baseline. No significant differences in serum lutein concentrations and MPOD levels were seen between the groups. Three months after supplementation ended, the serum lutein concentration decreased; the MPOD remained elevated in both groups. CONCLUSIONS The serum lutein concentrations and MPOD levels increased significantly with either free lutein or lutein esters, and no significant differences were found between the two. Both were considered useful as lutein supplements.
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Affiliation(s)
- Hiroko Yoshizako
- Department of Ophthalmology; Shimane University School of Medicine; Izumo Shimane Japan
| | - Katunori Hara
- Department of Ophthalmology; Shimane University School of Medicine; Izumo Shimane Japan
| | - Yasuyuki Takai
- Department of Ophthalmology; Shimane University School of Medicine; Izumo Shimane Japan
| | - Sachiko Kaidzu
- Department of Ophthalmology; Shimane University School of Medicine; Izumo Shimane Japan
| | - Akira Obana
- Seirei Hamamatsu General Hospital; Ophthalmology; Hamamatsu Shizuoka Japan
| | - Akihiro Ohira
- Department of Ophthalmology; Shimane University School of Medicine; Izumo Shimane Japan
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205
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Corvi F, Souied EH, Falfoul Y, Georges A, Jung C, Querques L, Querques G. Pilot evaluation of short-term changes in macular pigment and retinal sensitivity in different phenotypes of early age-related macular degeneration after carotenoid supplementation. Br J Ophthalmol 2016; 101:770-773. [DOI: 10.1136/bjophthalmol-2016-309115] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2016] [Revised: 07/24/2016] [Accepted: 08/14/2016] [Indexed: 11/04/2022]
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Engineering of the carotenoid pathway in Xanthophyllomyces dendrorhous leading to the synthesis of zeaxanthin. Appl Microbiol Biotechnol 2016; 101:103-111. [DOI: 10.1007/s00253-016-7769-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 06/19/2016] [Accepted: 08/01/2016] [Indexed: 11/25/2022]
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207
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Lima VC, Rosen RB, Farah M. Macular pigment in retinal health and disease. Int J Retina Vitreous 2016; 2:19. [PMID: 27847637 PMCID: PMC5088450 DOI: 10.1186/s40942-016-0044-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 07/21/2016] [Indexed: 12/16/2022] Open
Abstract
Lutein and zeaxanthin, two carotenoid pigments of the xanthophyll subclass, are present in high concentrations in the retina, especially in the macula. They work as a filter protecting the macula from blue light and also as a resident antioxidant and free radical scavenger to reduce oxidative stress-induced damage. Many observational and interventional studies have suggested that lutein and zeaxanthin may reduce the risk of various eye diseases, especially late forms of AMD. In vitro and in vivo studies indicate that they could protect various ocular cells against oxidative damage. Recent research has shown that in addition to traditional mechanisms, lutein and zeaxanthin can influence the viability and function of cells through various signal pathways or transcription factors: for instance, they can affect immune responses and inflammation, and have anti-angiogenic and anti-tumor properties. This review covers the basic aspects and results of recent studies regarding the effects of lutein, zeaxanthin and other carotenoids, such as meso-zeaxanthin, on the eye in different clinical and experimental models and the management of various ocular diseases using these molecules.
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Affiliation(s)
- Verônica Castro Lima
- Retina Service, Hospital Humberto Castro Lima (IBOPC), Salvador, Bahia Brazil ; Retina Service, Department of Ophthalmology, Federal University of São Paulo, São Paulo, Brazil
| | - Richard B Rosen
- Icahn School of Medicine at Mount Sinai, New York, NY USA ; Retina Service, Department of Ophthalmology, The New York Eye and Ear Infirmary of Mount Sinai, 310 East 14th Street, New York, NY 10003 USA
| | - Michel Farah
- Retina Service, Department of Ophthalmology, Federal University of São Paulo, São Paulo, Brazil
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208
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Sharavana G, Joseph GS, Baskaran V. Lutein attenuates oxidative stress markers and ameliorates glucose homeostasis through polyol pathway in heart and kidney of STZ-induced hyperglycemic rat model. Eur J Nutr 2016; 56:2475-2485. [PMID: 27488609 DOI: 10.1007/s00394-016-1283-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 07/25/2016] [Indexed: 12/11/2022]
Abstract
PURPOSE Lutein's role on chronic hyperglycemia-induced oxidative stress and associated glucose homeostasis in heart and kidney is limited. Purpose of the study is to investigate the effect of lutein on cardiac and renal polyol pathway enzymes and oxidative stress markers under hyperglycemia-induced oxidative stress condition using streptozotocin (STZ)-injected rat model. METHODS STZ-induced hyperglycemic (fasting blood glucose ≥11 mM) male Wistar rats were divided into two groups (n = 11/group). Group 1 received micellar lutein (39 nmol/day/rat) and group 2 (negative control) received micelle without lutein for 8 weeks. A separate group (no STZ injected) served as a positive control (n = 11/group). Oral glucose tolerance test (OGTT), biweekly urine glucose and activities of aldose reductase (AR) and sorbitol dehydrogenase (SDH) enzymes were assessed. Activities of antioxidant enzymes and antioxidant level were also evaluated. RESULTS Lutein-administered hyperglycemic rats showed better glucose tolerance as evidenced with OGTT and biweekly urine glucose when compared to negative control. Activities of AR and SDH were decreased in heart and kidney of lutein-fed hyperglycemic rats. Also, they had significantly (p < 0.05) decreased malondialdehyde levels (66, 34, and 33 %) and increased reduced glutathione level (81, 18 and 92 %) in serum, heart and kidney, respectively. Altered antioxidant enzyme activities such as superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase and glutathione transferase were also affected in serum, heart and kidney of lutein-fed diabetic group. CONCLUSION Lutein prevented cardiac and renal injury in STZ-induced hyperglycemic rats due to potential amelioration of altered activities in polyol pathway and oxidative stress markers.
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Affiliation(s)
- Gurunathan Sharavana
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, 570 020, India
| | - G S Joseph
- Department of Molecular Nutrition, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, 570 020, India
| | - Vallikannan Baskaran
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, 570 020, India.
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209
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Orhan C, Akdemir F, Tuzcu M, Sahin N, Yilmaz I, Deshpande J, Juturu V, Sahin K. Mesozeaxanthin Protects Retina from Oxidative Stress in a Rat Model. J Ocul Pharmacol Ther 2016; 32:631-637. [PMID: 27463036 DOI: 10.1089/jop.2015.0154] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
PURPOSE Mesozeaxanthin (MZ) is able to protect against chronic and cumulative eye damage and neutralize free radicals produced by oxidative stress. The objective of the present study was to evaluate the protective potential of MZ against retinal oxidative damage and growth and transcription factors of the retina in rats fed with high-fat diet (HFD). METHODS Twenty-eight Sprague Dawley rats were randomly divided into the following 4 groups: (1) Control, (2) MZ (100 mg/kg bw/d), (3) HFD (42% of calories as fat), and (4) HFD+MZ (100 mg/kg bw/d) group rats were administered daily as supplement for 12 weeks. RESULTS Consumption of HFD was associated with hyperglycemia and oxidative stress as reflected by increased serum MDA concentration (P < 0.001). No measurable zeaxanthin (Z)+MZ and lutein (L) could be detected in the serum of control and HFD rats, whereas they were observed in the serum of MZ-administered rats. Retinal antioxidant enzyme [superoxide dismutase (SOD) and catalase (CAT)] activities were significantly decreased in the HFD group compared to the normal group (P < 0.01). However, retinal antioxidant enzymes were restored close to normal levels in HFD+MZ-treated rats (P < 0.05). The retina of rats fed with HFD had increased levels of vascular endothelial growth factor (VEGF), inducible nitric oxide (iNOS), intercellular adhesion molecule-1 (ICAM-1), and nuclear factor-kappa B (NF-κB) levels and decreased nuclear factor erythroid 2-related factor 2 (Nrf2) and heme-oxygenase 1(HO-1) levels compared to the healthy rat retina (P < 0.001). Rats treated with MZ partially alleviated the inflammation as reflected by suppressed VEGF, iNOS, ICAM, and NF-κB levels and increased Nrf2 and HO-1 levels in the retina of rats fed (P < 0.05). CONCLUSIONS Results from the present study suggest that MZ has protective effects on the retina and the ability to modulate oxidative stress of retina in rats fed an HFD by suppressing retinal lipid peroxidation and regulating growth and transcription factors.
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Affiliation(s)
- Cemal Orhan
- 1 Department of Animal Nutrition, Faculty of Veterinary Science, Firat University , Elazig, Turkey
| | - Fatih Akdemir
- 2 Department of Nutrition, Faculty of Fisheries, Inonu University , Malatya, Turkey
| | - Mehmet Tuzcu
- 3 Division of Biology, Faculty of Science, Firat University , Elazig, Turkey
| | - Nurhan Sahin
- 1 Department of Animal Nutrition, Faculty of Veterinary Science, Firat University , Elazig, Turkey
| | - Ismet Yilmaz
- 4 Department of Pharmacology, Faculty of Pharmacy, Inonu University , Malatya, Turkey
| | - Jayant Deshpande
- 5 Research and Development, OmniActive Health Technologies, Inc. , Morristown, New Jersey
| | - Vijaya Juturu
- 5 Research and Development, OmniActive Health Technologies, Inc. , Morristown, New Jersey
| | - Kazim Sahin
- 1 Department of Animal Nutrition, Faculty of Veterinary Science, Firat University , Elazig, Turkey .,2 Department of Nutrition, Faculty of Fisheries, Inonu University , Malatya, Turkey
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210
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Stringham JM, Stringham NT. Serum and retinal responses to three different doses of macular carotenoids over 12 weeks of supplementation. Exp Eye Res 2016; 151:1-8. [PMID: 27426932 DOI: 10.1016/j.exer.2016.07.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 07/10/2016] [Accepted: 07/13/2016] [Indexed: 11/25/2022]
Abstract
The macular carotenoids lutein (L), zeaxanthin (Z), and mesozeaxanthin (MZ) have been shown to have neuroprotective and visual performance benefits once deposited in retinal tissues. The purpose of this 12-week trial was to determine biweekly the absorption kinetics, efficiency of retinal deposition, and effects on the spatial profile of macular pigment for three levels of L + Z + MZ supplement. This study was a double-blind, placebo-controlled 12-week trial. Twenty-eight healthy subjects, aged 18-25 yrs participated. Subjects were randomly assigned to one of four daily supplementation groups: placebo (safflower oil; n = 5), 7.44 mg total macular carotenoid (n = 7), 13.13 mg total macular carotenoid (n = 8), and 27.03 (n = 8) mg total macular carotenoid. Ratios of the three carotenoids were virtually identical for the three levels of supplement (83% L, 10% Z, 7% MZ). At baseline and every two weeks thereafter over the 12-week study period, a fasting blood draw was conducted and, via heterochromatic flicker photometry, spatial profiles of macular pigment optical density (MPOD) were determined. Compared to placebo, serum concentrations of both L and total Z, for each of the supplement levels, were found to increase significantly from baseline after two weeks of daily ingestion (p < 0.001). Likewise, MPOD increased significantly in all treatment groups (p < 0.001) compared to placebo. Serum responses (L, Z, and L + Z) were linearly related to dose (p < 0.001 for all), but not to retinal response. L: Z serum response ratios decreased exponentially with increases in dose (p = 0.008). The ratio of MPOD change: total serum response was found to be highest for the 13.13 mg level of supplement (p = 0.021), followed by 27.03- and 7.44-mg doses. The very center of the spatial profile of MPOD increased in a fashion commensurate with dose level. Although L serum responses increased with dose, the slope of increase was shallower than for Z. Given the higher levels of L in the supplements, this is suggestive of a compressed response with relatively high doses of L. Although all three doses significantly augmented MPOD, the 13.13 mg/day L + Z supplement level was the most efficient in doing so. The data regarding efficiency may inform recommendations regarding macular carotenoid supplementation for age-related macular degeneration. Lastly (although not statistically significant), the shift toward a more pronounced central peak in the spatial profile of MPOD in all treatment groups suggests that central retinal deposition of Z and MZ was efficient and can be seen after a short period of supplementation, especially with higher (e.g. 27.03 mg) daily doses of macular carotenoids. ISRCTN trial registration number: ISRCTN54990825.
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Affiliation(s)
- James M Stringham
- Nutritional Neuroscience Laboratory, Department of Physiology and Pharmacology, University of Georgia, Athens, GA 30602, USA.
| | - Nicole T Stringham
- Interdisciplinary Neuroscience Program, Biomedical Health Sciences Institute, University of Georgia, Athens, GA 30602, USA.
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211
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Wu L, Guo X, Wang W, Medeiros DM, Clarke SL, Lucas EA, Smith BJ, Lin D. Molecular aspects of β, β-carotene-9', 10'-oxygenase 2 in carotenoid metabolism and diseases. Exp Biol Med (Maywood) 2016; 241:1879-1887. [PMID: 27390265 DOI: 10.1177/1535370216657900] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 06/09/2016] [Indexed: 12/18/2022] Open
Abstract
Carotenoids, the carotenes and xanthophylls, are essential components in human nutrition. β, β-carotene-9', 10'-oxygenase 2 (BCO2), also named as β, β-carotene-9', 10'-dioxygenase 2 (BCDO2) catalyzes the asymmetrical cleavage of carotenoids, whereas β, β-carotene-15, 15'-monooxygenase (BCMO1) conducts the symmetrical cleavage of pro-vitamin A carotenoids into retinoid. Unlike BCMO1, BCO2 has a broader substrate specificity and has been considered an alternative way to produce vitamin A. In contrast to BCMO1, a cytoplasmic protein, BCO2 is located in the inner mitochondrial membrane. The difference in cellular compartmentalization may reflect the different substrate specificity and physiological functions with respect to BCMO1 and BCO2. The BCO2 gene mutations are proven to be associated with yellow color of skin and fat tissue and milk in livestock. Mutation in intron 2 of BCO2 gene is also supposed to be related to the expression of IL-18, a pro-inflammatory cytokine associated with obesity, cardiovascular diseases, and type 2 diabetes. Further, BCO2 is associated with the development of mitochondrial oxidative stress, macular degeneration, anemia, and hepatic steatosis. This review of the literature will mostly address recent updates regarding the role of BCO2 in carotenoid metabolism, and discuss the potential impacts of BCO2 protein and the mutations in mammalian diseases.
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Affiliation(s)
- Lei Wu
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - Xin Guo
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - Weiqun Wang
- Department of Food Nutrition Dietetics & Health, Kansas State University, Manhattan, KS 66506, USA
| | - Denis M Medeiros
- College of Graduate Studies, University of Missouri-Kansas City, Kansas City, MO 64112, USA
| | - Stephen L Clarke
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - Edralin A Lucas
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - Brenda J Smith
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - Dingbo Lin
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK 74078, USA
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212
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Wang R, Cui W, Tan Z, Zhong S, Li F. Preparation and Corresponding Properties of a Novel Aqueous Derivative of Lutein. CHEM LETT 2016. [DOI: 10.1246/cl.160089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Runping Wang
- College of Chemistry and Chemical Engineering, Central South University
| | - Wei Cui
- College of Chemistry and Chemical Engineering, Central South University
| | - Zhijian Tan
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences
| | - Shian Zhong
- College of Chemistry and Chemical Engineering, Central South University
| | - Fenfang Li
- College of Chemistry and Chemical Engineering, Central South University
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213
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Carotenoid profiling from 27 types of paprika (Capsicum annuum L.) with different colors, shapes, and cultivation methods. Food Chem 2016; 201:64-71. [DOI: 10.1016/j.foodchem.2016.01.041] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 01/04/2016] [Accepted: 01/10/2016] [Indexed: 11/18/2022]
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214
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Choo YM, Ahmad Kamar A, Tengku Kamalden TAF, Looi ML, Tan K, Lai NM. Lutein and zeaxanthin for reducing morbidity and mortality in preterm infants. Hippokratia 2016. [DOI: 10.1002/14651858.cd012178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yao Mun Choo
- University of Malaya; Department of Paediatrics; Kuala Lumpur Malaysia
| | | | | | - Mee Lee Looi
- Taylors University; School of Biosciences; Subang Jay Malaysia
| | - Kenneth Tan
- Monash University; Department of Paediatrics; 246 Clayton Road Clayton Melbourne Victoria Australia VIC 3168
- Monash Children's Hospital; Monash Newborn; 246 Clayton Road Melbourne Australia
| | - Nai Ming Lai
- Taylor's University; School of Medicine; Subang Jaya Malaysia
- Monash University; School of Pharmacy; Subang Jaya Malaysia
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215
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Temple SE, McGregor JE, Miles C, Graham L, Miller J, Buck J, Scott-Samuel NE, Roberts NW. Perceiving polarization with the naked eye: characterization of human polarization sensitivity. Proc Biol Sci 2016; 282:rspb.2015.0338. [PMID: 26136441 PMCID: PMC4528539 DOI: 10.1098/rspb.2015.0338] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Like many animals, humans are sensitive to the polarization of light. We can detect the angle of polarization using an entoptic phenomenon called Haidinger's brushes, which is mediated by dichroic carotenoids in the macula lutea. While previous studies have characterized the spectral sensitivity of Haidinger's brushes, other aspects remain unexplored. We developed a novel methodology for presenting gratings in polarization-only contrast at varying degrees of polarization in order to measure the lower limits of human polarized light detection. Participants were, on average, able to perform the task down to a threshold of 56%, with some able to go as low as 23%. This makes humans the most sensitive vertebrate tested to date. Additionally, we quantified a nonlinear relationship between presented and perceived polarization angle when an observer is presented with a rotatable polarized light field. This result confirms a previous theoretical prediction of how uniaxial corneal birefringence impacts the perception of Haidinger's brushes. The rotational dynamics of Haidinger's brushes were then used to calculate corneal retardance.We suggest that psychophysical experiments, based upon the perception of polarized light, are amenable to the production of affordable technologies for self-assessment and longitudinal monitoring of visual dysfunctions such as age-related macular degeneration.
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Affiliation(s)
- Shelby E. Temple
- School of Biological Sciences, University of Bristol, Bristol BS8 1TQ, UK
- e-mail:
| | | | - Camilla Miles
- School of Biological Sciences, University of Bristol, Bristol BS8 1TQ, UK
| | - Laura Graham
- School of Biological Sciences, University of Bristol, Bristol BS8 1TQ, UK
| | - Josie Miller
- School of Biological Sciences, University of Bristol, Bristol BS8 1TQ, UK
| | - Jordan Buck
- School of Biological Sciences, University of Bristol, Bristol BS8 1TQ, UK
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216
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Wu J, Cho E, Willett WC, Sastry SM, Schaumberg DA. Intakes of Lutein, Zeaxanthin, and Other Carotenoids and Age-Related Macular Degeneration During 2 Decades of Prospective Follow-up. JAMA Ophthalmol 2016; 133:1415-24. [PMID: 26447482 DOI: 10.1001/jamaophthalmol.2015.3590] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
IMPORTANCE Despite strong biological plausibility, evidence from epidemiologic studies and clinical trials on the relations between intakes of lutein and zeaxanthin and age-related macular degeneration (AMD) has been inconsistent. The roles of other carotenoids are less thoroughly investigated. OBJECTIVE To investigate the associations between intakes of carotenoids and AMD. DESIGN, SETTING, AND PARTICIPANTS Prospective cohort study, with cohorts from the Nurses' Health Study and the Health Professionals Follow-up Study in the United States. A total of 63,443 women and 38,603 men were followed up, from 1984 until May 31, 2010, in the Nurses' Health Study and from 1986 until January 31, 2010, in the Health Professionals Follow-up Study. All participants were aged 50 years or older and were free of diagnosed AMD, diabetes mellitus, cardiovascular disease, and cancer at baseline. MAIN OUTCOMES AND MEASURES Predicted plasma carotenoid scores were computed directly from food intake, assessed by repeated food frequency questionnaires at baseline and follow-up, using validated regression models to account for bioavailability and reporting validity of different foods, and associations between predicted plasma carotenoid scores and AMD were determined. RESULTS We confirmed 1361 incident intermediate and 1118 advanced AMD cases (primarily neovascular AMD) with a visual acuity of 20/30 or worse by medical record review. Comparing extreme quintiles of predicted plasma lutein/zeaxanthin score, we found a risk reduction for advanced AMD of about 40% in both women and men (pooled relative risk comparing extreme quintiles = 0.59; 95% CI, 0.48-0.73; P for trend < .001). Predicted plasma carotenoid scores for other carotenoids, including β-cryptoxanthin, α-carotene, and β-carotene, were associated with a 25% to 35% lower risk of advanced AMD when comparing extreme quintiles. The relative risk comparing extreme quintiles for the predicted plasma total carotenoid index was 0.65 (95% CI, 0.53-0.80; P for trend < .001). We did not identify any associations of carotenoids, either as predicted plasma score or calculated intake, with intermediate AMD. CONCLUSIONS AND RELEVANCE Higher intake of bioavailable lutein/zeaxanthin is associated with a long-term reduced risk of advanced AMD. Given that some other carotenoids are also associated with a lower risk, a public health strategy aimed at increasing dietary consumption of a wide variety of fruits and vegetables rich in carotenoids may reduce the incidence of advanced AMD.
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Affiliation(s)
- Juan Wu
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Eunyoung Cho
- Department of Dermatology, Warren Alpert Medical School, Brown University, Providence, Rhode Island3Department of Epidemiology, Brown School of Public Health, Providence, Rhode Island4Channing Division of Network Medicine, Department of Medicine, Brigham
| | - Walter C Willett
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, Massachusetts4Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts5Department of Epidemiolog
| | | | - Debra A Schaumberg
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, Massachusetts7Moran Center for Translational Medicine, John A. Moran Eye Center, Department of Ophthalmology and Visual Sciences, University of Utah School of Medicine, Salt L
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Reinkensmeier A, Steinbrenner K, Homann T, Bußler S, Rohn S, Rawel HM. Monitoring the apple polyphenol oxidase-modulated adduct formation of phenolic and amino compounds. Food Chem 2016; 194:76-85. [DOI: 10.1016/j.foodchem.2015.07.145] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 07/28/2015] [Accepted: 07/29/2015] [Indexed: 10/23/2022]
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Al-Maghrebi M, Renno WM, Al-Somali HF, Botras MS, Qadhi IN. Lutein modulates transcription dysregulation of adhesion molecules and spermatogenesis transcription factors induced by testicular ischemia reperfusion injury: it could be SAFE. Naunyn Schmiedebergs Arch Pharmacol 2016; 389:539-51. [DOI: 10.1007/s00210-016-1223-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 02/15/2016] [Indexed: 12/22/2022]
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Zakynthinos G, Varzakas T. Carotenoids: From Plants to Food Industry. CURRENT RESEARCH IN NUTRITION AND FOOD SCIENCE 2016. [DOI: 10.12944/crnfsj.4.special-issue1.04] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Carotenoids have been studied for their ability to prevent chronic disease due to the free radical theory of aging in chronic disease etiology. β-carotene, lycopene, zeaxanthine and others carotenoids have antioxidant properties, but the antioxidant capability is variable depending on the in vitro system used The physiology, structure and biochemistry is well described.
Moreover, sources of carotenoids and health effects along with bioavailability-absorption and metabolism, of carotenoids are well addressed. The effect of carotenoids on biotechnology and the food industry is significantly attributed.
Finally, carotenoids as fortified substances in foods and special aspects about carotenenoids as health promoters are well presented along with a glance of carotenoids economics.
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Affiliation(s)
- G Zakynthinos
- Technological Educational Institute of Peloponnese Dept. Food Technology
| | - T Varzakas
- Technological Educational Institute of Peloponnese Dept. Food Technology
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220
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Widomska J, Zareba M, Subczynski WK. Can Xanthophyll-Membrane Interactions Explain Their Selective Presence in the Retina and Brain? Foods 2016; 5. [PMID: 27030822 PMCID: PMC4809277 DOI: 10.3390/foods5010007] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Epidemiological studies demonstrate that a high dietary intake of carotenoids may offer protection against age-related macular degeneration, cancer and cardiovascular and neurodegenerative diseases. Humans cannot synthesize carotenoids and depend on their dietary intake. Major carotenoids that have been found in human plasma can be divided into two groups, carotenes (nonpolar molecules, such as β-carotene, α-carotene or lycopene) and xanthophylls (polar carotenoids that include an oxygen atom in their structure, such as lutein, zeaxanthin and β-cryptoxanthin). Only two dietary carotenoids, namely lutein and zeaxanthin (macular xanthophylls), are selectively accumulated in the human retina. A third carotenoid, meso-zeaxanthin, is formed directly in the human retina from lutein. Additionally, xanthophylls account for about 70% of total carotenoids in all brain regions. Some specific properties of these polar carotenoids must explain why they, among other available carotenoids, were selected during evolution to protect the retina and brain. It is also likely that the selective uptake and deposition of macular xanthophylls in the retina and brain are enhanced by specific xanthophyll-binding proteins. We hypothesize that the high membrane solubility and preferential transmembrane orientation of macular xanthophylls distinguish them from other dietary carotenoids, enhance their chemical and physical stability in retina and brain membranes and maximize their protective action in these organs. Most importantly, xanthophylls are selectively concentrated in the most vulnerable regions of lipid bilayer membranes enriched in polyunsaturated lipids. This localization is ideal if macular xanthophylls are to act as lipid-soluble antioxidants, which is the most accepted mechanism through which lutein and zeaxanthin protect neural tissue against degenerative diseases.
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Affiliation(s)
- Justyna Widomska
- Department of Biophysics, Medical University of Lublin, 20-090 Lublin, Poland
- Correspondence: ; Tel.: +48-81-479-7169
| | - Mariusz Zareba
- Department of Ophthalmology, Medical College of Wisconsin, Milwaukee, WI 53226, USA;
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221
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Cervantes-Paz B, Victoria-Campos CI, Ornelas-Paz JDJ. Absorption of Carotenoids and Mechanisms Involved in Their Health-Related Properties. Subcell Biochem 2016; 79:415-454. [PMID: 27485232 DOI: 10.1007/978-3-319-39126-7_16] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Carotenoids participate in the normal metabolism and function of the human body. They are involved in the prevention of several diseases, especially those related to the inflammation syndrome. Their main mechanisms of action are associated to their potent antioxidant activity and capacity to regulate the expression of specific genes and proteins. Recent findings suggest that carotenoid metabolites may explain several processes where the participation of their parent carotenoids was unclear. The health benefits of carotenoids strongly depend on their absorption and transformation during gastrointestinal digestion. The estimation of the 'bioaccessibility' of carotenoids through in vitro models have made possible the evaluation of the effect of a large number of factors on key stages of carotenoid digestion and intestinal absorption. The bioaccessibility of these compounds allows us to have a clear idea of their potential bioavailability, a term that implicitly involves the biological activity of these compounds.
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Affiliation(s)
- Braulio Cervantes-Paz
- Centro de Investigación en Alimentación y Desarrollo A. C.-Unidad Cuauhtémoc, Av. Río Conchos S/N, Parque Industrial, C.P. 31570, Cd. Cuauhtémoc, Chihuahua, Mexico
| | - Claudia I Victoria-Campos
- Centro de Investigación en Alimentación y Desarrollo A. C.-Unidad Cuauhtémoc, Av. Río Conchos S/N, Parque Industrial, C.P. 31570, Cd. Cuauhtémoc, Chihuahua, Mexico
| | - José de Jesús Ornelas-Paz
- Centro de Investigación en Alimentación y Desarrollo A. C.-Unidad Cuauhtémoc, Av. Río Conchos S/N, Parque Industrial, C.P. 31570, Cd. Cuauhtémoc, Chihuahua, Mexico.
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222
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Bernstein PS, Li B, Vachali PP, Gorusupudi A, Shyam R, Henriksen BS, Nolan JM. Lutein, zeaxanthin, and meso-zeaxanthin: The basic and clinical science underlying carotenoid-based nutritional interventions against ocular disease. Prog Retin Eye Res 2016; 50:34-66. [PMID: 26541886 PMCID: PMC4698241 DOI: 10.1016/j.preteyeres.2015.10.003] [Citation(s) in RCA: 314] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 10/04/2015] [Accepted: 10/29/2015] [Indexed: 12/31/2022]
Abstract
The human macula uniquely concentrates three carotenoids: lutein, zeaxanthin, and meso-zeaxanthin. Lutein and zeaxanthin must be obtained from dietary sources such as green leafy vegetables and orange and yellow fruits and vegetables, while meso-zeaxanthin is rarely found in diet and is believed to be formed at the macula by metabolic transformations of ingested carotenoids. Epidemiological studies and large-scale clinical trials such as AREDS2 have brought attention to the potential ocular health and functional benefits of these three xanthophyll carotenoids consumed through the diet or supplements, but the basic science and clinical research underlying recommendations for nutritional interventions against age-related macular degeneration and other eye diseases are underappreciated by clinicians and vision researchers alike. In this review article, we first examine the chemistry, biochemistry, biophysics, and physiology of these yellow pigments that are specifically concentrated in the macula lutea through the means of high-affinity binding proteins and specialized transport and metabolic proteins where they play important roles as short-wavelength (blue) light-absorbers and localized, efficient antioxidants in a region at high risk for light-induced oxidative stress. Next, we turn to clinical evidence supporting functional benefits of these carotenoids in normal eyes and for their potential protective actions against ocular disease from infancy to old age.
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Affiliation(s)
- Paul S Bernstein
- Department of Ophthalmology and Visual Sciences, Moran Eye Center, University of Utah School of Medicine, 65 Mario Capecchi Drive, Salt Lake City, UT, 84132, USA.
| | - Binxing Li
- Department of Ophthalmology and Visual Sciences, Moran Eye Center, University of Utah School of Medicine, 65 Mario Capecchi Drive, Salt Lake City, UT, 84132, USA.
| | - Preejith P Vachali
- Department of Ophthalmology and Visual Sciences, Moran Eye Center, University of Utah School of Medicine, 65 Mario Capecchi Drive, Salt Lake City, UT, 84132, USA.
| | - Aruna Gorusupudi
- Department of Ophthalmology and Visual Sciences, Moran Eye Center, University of Utah School of Medicine, 65 Mario Capecchi Drive, Salt Lake City, UT, 84132, USA.
| | - Rajalekshmy Shyam
- Department of Ophthalmology and Visual Sciences, Moran Eye Center, University of Utah School of Medicine, 65 Mario Capecchi Drive, Salt Lake City, UT, 84132, USA.
| | - Bradley S Henriksen
- Department of Ophthalmology and Visual Sciences, Moran Eye Center, University of Utah School of Medicine, 65 Mario Capecchi Drive, Salt Lake City, UT, 84132, USA.
| | - John M Nolan
- Macular Pigment Research Group, Vision Research Centre, School of Health Science, Carriganore House, Waterford Institute of Technology West Campus, Carriganore, Waterford, Ireland.
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Stringham JM, Stringham NT. Nitric Oxide and Lutein: Function, Performance, and Protection of Neural Tissue. Foods 2015; 4:678-689. [PMID: 28231230 PMCID: PMC5224557 DOI: 10.3390/foods4040678] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 10/23/2015] [Accepted: 11/05/2015] [Indexed: 01/13/2023] Open
Abstract
The soluble gas neurotransmitter nitric oxide (NO) serves many important metabolic and neuroregulatory functions in the retina and brain. Although it is necessary for normal neural function, NO can play a significant role in neurotoxicity. This is often seen in disease states that involve oxidative stress and inflammation of neural tissues, such as age-related macular degeneration and Alzheimer’s disease. The dietary xanthophyll carotenoid lutein (L) is a potent antioxidant and anti-inflammatory agent that, if consumed in sufficient amounts, is deposited in neural tissues that require substantial metabolic demand. Some of these specific tissues, such as the central retina and frontal lobes of the brain, are impacted by age-related diseases such as those noted above. The conspicuous correspondence between metabolic demand, NO, and L is suggestive of a homeostatic relationship that serves to facilitate normal function, enhance performance, and protect vulnerable neural tissues. The purpose of this paper is to review the literature on these points.
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Affiliation(s)
- James M Stringham
- Nutritional Neuroscience Laboratory, Department of Psychology, University of Georgia, Athens, GA 30602, USA.
| | - Nicole T Stringham
- Nutritional Neuroscience Laboratory, Department of Psychology, University of Georgia, Athens, GA 30602, USA.
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225
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Abdel-Aal ESM, Rabalski I. Composition of Lutein Ester Regioisomers in Marigold Flower, Dietary Supplement, and Herbal Tea. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:9740-9746. [PMID: 26496496 DOI: 10.1021/acs.jafc.5b04430] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Characterization of lutein and its esters in a health product is necessary for its efficacy. In the current study lutein ester regioisomers were quantified and identified in several dietary supplements and herbal teas in comparison with marigold flower, the commercial source of lutein. The products were extracted with three solvents and separated on a C30 column. The separated esters were identified/confirmed with LC-MS in APCI+ve mode with the use of synthetic lutein esters. The total content of lutein esters substantially varied among marigold flowers (167-5752 μg/g), supplements (88,000-110,700 μg/g), and herbal teas (12.4-91.3 μg/g). Lutein supplement had a lutein profile similar to that of marigold flower, whereas herbal tea showed an extremely different profile. Lutein dipalmitate was the dominant compound in supplements and marigold flowers followed by lutein 3'-O-myristate-3-O-palmitate and lutein 3'-O-palmitate-3-O-myristate. Lutein was the major compound in marigold herbal tea with small amounts of lutein mono- and diesters. Differences in the concentration and composition of lutein compounds among marigold products could indicate distinct product quality and lutein bioavailability.
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Affiliation(s)
- El-Sayed M Abdel-Aal
- Guelph Food Research Centre, Agriculture and Agri-Food Canada , 93 Stone Road West, Guelph, Ontario, Canada N1G 5C9
| | - Iwona Rabalski
- Guelph Food Research Centre, Agriculture and Agri-Food Canada , 93 Stone Road West, Guelph, Ontario, Canada N1G 5C9
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226
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Chayut N, Yuan H, Ohali S, Meir A, Yeselson Y, Portnoy V, Zheng Y, Fei Z, Lewinsohn E, Katzir N, Schaffer AA, Gepstein S, Burger J, Li L, Tadmor Y. A bulk segregant transcriptome analysis reveals metabolic and cellular processes associated with Orange allelic variation and fruit β-carotene accumulation in melon fruit. BMC PLANT BIOLOGY 2015; 15:274. [PMID: 26553015 PMCID: PMC4640158 DOI: 10.1186/s12870-015-0661-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Accepted: 11/03/2015] [Indexed: 05/19/2023]
Abstract
BACKGROUND Melon fruit flesh color is primarily controlled by the "golden" single nucleotide polymorhism of the "Orange" gene, CmOr, which dominantly triggers the accumulation of the pro-vitamin A molecule, β-carotene, in the fruit mesocarp. The mechanism by which CmOr operates is not fully understood. To identify cellular and metabolic processes associated with CmOr allelic variation, we compared the transcriptome of bulks of developing fruit of homozygous orange and green fruited F3 families derived from a cross between orange and green fruited parental lines. RESULTS Pooling together F3 families that share same fruit flesh color and thus the same CmOr allelic variation, normalized traits unrelated to CmOr allelic variation. RNA sequencing analysis of these bulks enabled the identification of differentially expressed genes. These genes were clustered into functional groups. The relatively enriched functional groups were those involved in photosynthesis, RNA and protein regulation, and response to stress. CONCLUSIONS The differentially expressed genes and the enriched processes identified here by bulk segregant RNA sequencing analysis are likely part of the regulatory network of CmOr. Our study demonstrates the resolution power of bulk segregant RNA sequencing in identifying genes related to commercially important traits and provides a useful tool for better understanding the mode of action of CmOr gene in the mediation of carotenoid accumulation.
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Affiliation(s)
- Noam Chayut
- Plant Science Institute, Agricultural Research Organization, Newe Ya'ar Research Center, P.O. Box 1021, Ramat Yishay, 30095, Israel.
- Faculty of Biology, Technion - Israel Institute of Technology, Haifa, 32000, Israel.
| | - Hui Yuan
- Plant Breeding and Genetics Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA.
| | - Shachar Ohali
- Plant Science Institute, Agricultural Research Organization, Newe Ya'ar Research Center, P.O. Box 1021, Ramat Yishay, 30095, Israel.
| | - Ayala Meir
- Plant Science Institute, Agricultural Research Organization, Newe Ya'ar Research Center, P.O. Box 1021, Ramat Yishay, 30095, Israel.
| | - Yelena Yeselson
- Plant Science Institute, Agricultural Research Organization, The Volcani Center, P.O.B. 6, Bet-Dagan, 50250, ISRAEL.
| | - Vitaly Portnoy
- Plant Science Institute, Agricultural Research Organization, Newe Ya'ar Research Center, P.O. Box 1021, Ramat Yishay, 30095, Israel.
| | - Yi Zheng
- Boyce Thompson Institute for Plant Research, Cornell University, Ithaca, NY, 14853, USA.
| | - Zhangjun Fei
- Boyce Thompson Institute for Plant Research, Cornell University, Ithaca, NY, 14853, USA.
| | - Efraim Lewinsohn
- Plant Science Institute, Agricultural Research Organization, Newe Ya'ar Research Center, P.O. Box 1021, Ramat Yishay, 30095, Israel.
| | - Nurit Katzir
- Plant Science Institute, Agricultural Research Organization, Newe Ya'ar Research Center, P.O. Box 1021, Ramat Yishay, 30095, Israel.
| | - Arthur A Schaffer
- Plant Science Institute, Agricultural Research Organization, The Volcani Center, P.O.B. 6, Bet-Dagan, 50250, ISRAEL.
| | - Shimon Gepstein
- Faculty of Biology, Technion - Israel Institute of Technology, Haifa, 32000, Israel.
| | - Joseph Burger
- Plant Science Institute, Agricultural Research Organization, Newe Ya'ar Research Center, P.O. Box 1021, Ramat Yishay, 30095, Israel.
| | - Li Li
- Plant Breeding and Genetics Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA.
- US Department of Agriculture-Agricultural Research Service, Robert W Holly Center for Agriculture and Health, Cornell University, Ithaca, NY, 14853, USA.
| | - Yaakov Tadmor
- Plant Science Institute, Agricultural Research Organization, Newe Ya'ar Research Center, P.O. Box 1021, Ramat Yishay, 30095, Israel.
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227
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Li M, Cui Y, Gan Z, Shi C, Shi X. Isolation and Analysis of the Cppsy Gene and Promoter from Chlorella protothecoides CS-41. Mar Drugs 2015; 13:6620-35. [PMID: 26516871 PMCID: PMC4663545 DOI: 10.3390/md13116620] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 09/09/2015] [Accepted: 09/09/2015] [Indexed: 11/19/2022] Open
Abstract
Phytoene synthase (PSY) catalyzes the condensation of two molecules of geranylgeranyl pyrophosphate to form phytoene, the first colorless carotene in the carotenoid biosynthesis pathway. So it is regarded as the crucial enzyme for carotenoid production, and has unsurprisingly been involved in genetic engineering studies of carotenoid production. In this study, the psy gene from Chlorella protothecoides CS-41, designated Cppsy, was cloned using rapid amplification of cDNA ends. The full-length DNA was 2488 bp, and the corresponding cDNA was 1143 bp, which encoded 380 amino acids. Computational analysis suggested that this protein belongs to the Isoprenoid_Biosyn_C1 superfamily. It contained the consensus sequence, including three predicted substrate-Mg2+ binding sites. The Cppsy gene promoter was also cloned and characterized. Analysis revealed several candidate motifs for the promoter, which exhibited light- and methyl jasmonate (MeJA)-responsive characteristics, as well as some typical domains universally discovered in promoter sequences, such as the TATA-box and CAAT-box. Light- and MeJA treatment showed that the Cppsy expression level was significantly enhanced by light and MeJA. These results provide a basis for genetically modifying the carotenoid biosynthesis pathway in C. protothecoides.
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Affiliation(s)
- Meiya Li
- MOST-USDA Joint Research Center for Food Safety, School of Agriculture and Biology, and State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai 200240, China.
- Analytical Testing Center, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Yan Cui
- MOST-USDA Joint Research Center for Food Safety, School of Agriculture and Biology, and State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Zhibing Gan
- MOST-USDA Joint Research Center for Food Safety, School of Agriculture and Biology, and State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Chunlei Shi
- MOST-USDA Joint Research Center for Food Safety, School of Agriculture and Biology, and State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Xianming Shi
- MOST-USDA Joint Research Center for Food Safety, School of Agriculture and Biology, and State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai 200240, China.
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228
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Davidov-Pardo G, Gumus CE, McClements DJ. Lutein-enriched emulsion-based delivery systems: Influence of pH and temperature on physical and chemical stability. Food Chem 2015; 196:821-7. [PMID: 26593560 DOI: 10.1016/j.foodchem.2015.10.018] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 10/02/2015] [Accepted: 10/06/2015] [Indexed: 11/26/2022]
Abstract
Lutein may be utilized in foods as a natural pigment or nutraceutical ingredient to improve eye health. Nevertheless, its use is limited by its poor water-solubility and chemical instability. We evaluated the effect of storage temperature and pH on the physical and chemical stability of lutein-enriched emulsions prepared using caseinate. The emulsions (initial droplet diameter=232 nm) remained physically stable at all incubation temperatures (5-70 °C); however the chemical degradation of lutein increased with increasing temperature (activation energy=38 kJ/mol). Solution pH had a major impact on the physical stability of the emulsions, causing droplet aggregation at pH 4 and 5. Conversely, the chemical stability of lutein was largely independent of the pH, with only a slight decrease in degradation at pH 8. This work provides important information for the rational design of emulsion-based delivery systems for a lipophilic natural dye and nutraceutical.
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Affiliation(s)
- Gabriel Davidov-Pardo
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA; Department of Human Nutrition and Food Science, California State Polytechnic University, Pomona, 3801 West Temple Ave, Pomona, CA 91768, USA
| | - Cansu Ekin Gumus
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA
| | - David Julian McClements
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA; Department of Biochemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia.
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229
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Nimalaratne C, Wu J. Hen Egg as an Antioxidant Food Commodity: A Review. Nutrients 2015; 7:8274-93. [PMID: 26404361 PMCID: PMC4632414 DOI: 10.3390/nu7105394] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 09/17/2015] [Accepted: 09/18/2015] [Indexed: 01/04/2023] Open
Abstract
Intake of antioxidants through diet is known to be important in reducing oxidative damage in cells and improving human health. Although eggs are known for their exceptional, nutritional quality, they are not generally considered as antioxidant foods. This review aims to establish the importance of eggs as an antioxidant food by summarizing the current knowledge on egg-derived antioxidants. Eggs have various natural occurring compounds including the proteins ovalbumin, ovotransferrin and lysozyme in egg white, as well as phosvitin, carotenoids and free aromatic amino acids in egg yolk. Some lipophilic antioxidants such as vitamin E, carotenoids, selenium, iodine and others can be transferred from feed into egg yolk to produce antioxidant-enriched eggs. The bioactivity of egg antioxidants can be affected by food processing, storage and gastrointestinal digestion. Generally thermal processing methods can promote loss of antioxidant properties in eggs due to oxidation and degradation, whereas gastrointestinal digestion enhances the antioxidant properties, due to the formation of new antioxidants (free amino acids and peptides). In summary, in addition to its well-known nutritional contribution to our diet, this review emphasizes the role of eggs as an important antioxidant food.
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Affiliation(s)
- Chamila Nimalaratne
- Department of Agricultural, Food and Nutritional Science (AFNS), 4-10 Agriculture/Forestry Centre, University of Alberta, Edmonton, AB T6G 2P5, Canada.
| | - Jianping Wu
- Department of Agricultural, Food and Nutritional Science (AFNS), 4-10 Agriculture/Forestry Centre, University of Alberta, Edmonton, AB T6G 2P5, Canada.
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Kuczynska P, Jemiola-Rzeminska M, Strzalka K. Photosynthetic Pigments in Diatoms. Mar Drugs 2015; 13:5847-81. [PMID: 26389924 PMCID: PMC4584358 DOI: 10.3390/md13095847] [Citation(s) in RCA: 163] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 09/01/2015] [Accepted: 09/07/2015] [Indexed: 12/16/2022] Open
Abstract
Photosynthetic pigments are bioactive compounds of great importance for the food, cosmetic, and pharmaceutical industries. They are not only responsible for capturing solar energy to carry out photosynthesis, but also play a role in photoprotective processes and display antioxidant activity, all of which contribute to effective biomass and oxygen production. Diatoms are organisms of a distinct pigment composition, substantially different from that present in plants. Apart from light-harvesting pigments such as chlorophyll a, chlorophyll c, and fucoxanthin, there is a group of photoprotective carotenoids which includes β-carotene and the xanthophylls, diatoxanthin, diadinoxanthin, violaxanthin, antheraxanthin, and zeaxanthin, which are engaged in the xanthophyll cycle. Additionally, some intermediate products of biosynthetic pathways have been identified in diatoms as well as unusual pigments, e.g., marennine. Marine algae have become widely recognized as a source of unique bioactive compounds for potential industrial, pharmaceutical, and medical applications. In this review, we summarize current knowledge on diatom photosynthetic pigments complemented by some new insights regarding their physico-chemical properties, biological role, and biosynthetic pathways, as well as the regulation of pigment level in the cell, methods of purification, and significance in industries.
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Affiliation(s)
- Paulina Kuczynska
- Faculty of Biochemistry, Biophysics and Biotechnology, Department of Plant Physiology and Biochemistry, Jagiellonian University, Gronostajowa 7, Krakow 30-387, Poland.
| | - Malgorzata Jemiola-Rzeminska
- Faculty of Biochemistry, Biophysics and Biotechnology, Department of Plant Physiology and Biochemistry, Jagiellonian University, Gronostajowa 7, Krakow 30-387, Poland.
- Małopolska Centre of Biotechnology, Gronostajowa 7A, Krakow 30-387, Poland.
| | - Kazimierz Strzalka
- Faculty of Biochemistry, Biophysics and Biotechnology, Department of Plant Physiology and Biochemistry, Jagiellonian University, Gronostajowa 7, Krakow 30-387, Poland.
- Małopolska Centre of Biotechnology, Gronostajowa 7A, Krakow 30-387, Poland.
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231
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Bioactive Egg Components and Inflammation. Nutrients 2015; 7:7889-913. [PMID: 26389951 PMCID: PMC4586567 DOI: 10.3390/nu7095372] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Revised: 09/03/2015] [Accepted: 09/09/2015] [Indexed: 12/27/2022] Open
Abstract
Inflammation is a normal acute response of the immune system to pathogens and tissue injury. However, chronic inflammation is known to play a significant role in the pathophysiology of numerous chronic diseases, such as cardiovascular disease, type 2 diabetes mellitus, and cancer. Thus, the impact of dietary factors on inflammation may provide key insight into mitigating chronic disease risk. Eggs are recognized as a functional food that contain a variety of bioactive compounds that can influence pro- and anti-inflammatory pathways. Interestingly, the effects of egg consumption on inflammation varies across different populations, including those that are classified as healthy, overweight, metabolic syndrome, and type 2 diabetic. The following review will discuss the pro- and anti-inflammatory properties of egg components, with a focus on egg phospholipids, cholesterol, the carotenoids lutein and zeaxanthin, and bioactive proteins. The effects of egg consumption of inflammation across human populations will additionally be presented. Together, these findings have implications for population-specific dietary recommendations and chronic disease risk.
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Naberhuis JK, Lai CS. Enhanced delivery of lipophilic nutrients to the infant brain via high density lipoprotein. Med Hypotheses 2015; 85:680-5. [PMID: 26323246 DOI: 10.1016/j.mehy.2015.08.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Accepted: 08/13/2015] [Indexed: 12/14/2022]
Abstract
Lipoproteins are the primary carriers of lipophilic cognitive nutrients such as docosahexaenoic acid, lutein, and α-tocopherol within circulation. The critical roles these nutrients play in growth and development are well established, and as such, their efficient delivery to the infant brain is crucial. Given the selectivity of the blood brain barrier, the lipoprotein fraction primarily responsible for brain delivery of these nutrients must be determined so that efforts aimed at increasing brain nutrient uptake, via lipoprotein profile manipulation, can be appropriately focused. Based on the preclinical and clinical data reviewed here, we hypothesize that high density lipoprotein is the fraction chiefly responsible for delivery of docosahexaenoic acid, lutein, and α-tocopherol to the infant brain. As high density lipoprotein levels tend to be lower in preterm, formula-fed infants as compared to their full-term, breast-fed counterparts, efforts aimed at increasing circulating high density lipoprotein levels, and subsequent delivery of cognitive lipophilic nutrients to the brain via manipulation of formula composition, may be most effective if targeted to this group. These efforts include (1) limiting the polyunsaturated: saturated fatty acid ratio; (2) increasing the casein: whey ratio; (3) altering the proportion of saturated fatty acids found in the sn-2 position of the parent triglyceride; (4) cholesterol supplementation; and (5) nucleotide supplementation.
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Affiliation(s)
- J K Naberhuis
- Abbott Nutrition, Abbott Laboratories, Research Park at the University of Illinois at Urbana-Champaign, Champaign, IL, United States; Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - C-S Lai
- Abbott Nutrition, Abbott Laboratories, Columbus, OH, United States.
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Hou M, Wang R, Wu X, Zhang Y, Ge J, Liu Z. Synthesis of Lutein Esters by Using a Reusable Lipase-Pluronic Conjugate as the Catalyst. Catal Letters 2015. [DOI: 10.1007/s10562-015-1597-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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235
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Muthusamy V, Hossain F, Thirunavukkarasu N, Pandey N, Vishwakarma AK, Saha S, Gupta HS. Molecular Characterization of Exotic and Indigenous Maize Inbreds for Biofortification with Kernel Carotenoids. FOOD BIOTECHNOL 2015. [DOI: 10.1080/08905436.2015.1059768] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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236
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Li SG, Xu SZ, Niu Q, Ding YS, Pang LJ, Ma RL, Jing MX, Wang K, Ma XM, Feng GL, Liu JM, Zhang XF, Xiang HL, Li F. Lutein alleviates arsenic-induced reproductive toxicity in male mice via Nrf2 signaling. Hum Exp Toxicol 2015; 35:491-500. [DOI: 10.1177/0960327115595682] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
This study aims to investigate the mechanisms involved in the action of lutein (LU) alleviating arsenic-induced reproductive toxicity using mice model. Forty male Kunming mice were received following treatments by gavage: normal saline solution (control), arsenic trioxide (ATO; 5 mg/kg/day), LU (40 mg/kg/day), and ATO + LU (5 mg/kg/day + 40 mg/kg/day). At the end, the mice were killed by cervical dislocation and weighed. Pathological examination was done on the testis. The biomedical parameters including superoxide dismutase (SOD), glutathione (GSH), total antioxidative capability, malondialdehyde (MDA), 8-hydroxydeoxyguanosine (8-OHdG), and reproductive indexes were analyzed. The messenger RNA (mRNA) and protein expression of Nrf2, heme oxygenase 1 (HO-1), glutathione S-transferase (GST), nicotinamide adenine dinucleotide phosphate dehydrogenase, quinone 1 (NQO1) in testis were detected by real-time polymerase chain reaction and Western blot. We found that there was a decrease in sperm count; testis somatic index; the activities of SOD, GSH, total antioxidative capacity ( p < 0.01, respectively) in ATO-treated mice, while there was an increase in the levels of sperm abnormalities, MDA, and 8-OHdG than control ( p < 0.01, respectively). The groups treated with ATO + LU showed recovery of the measured parameters between those of ATO or saline-treated group. The antagonized interaction between ATO and LU was statistically significant ( p < 0.01). Mice treated with ATO + LU also showed greater mRNA expression of Nrf2, HO-1, NQO1, and GST than ATO or saline-treated groups. These findings suggest that LU alleviates reproductive toxicity induced by arsenic in male mice via Nrf2 signaling, which implicates a possible mechanism of LU in preventing the reproductive injury, and elucidates that consuming the rich plant sources of LU will alleviate the reproductive toxicity induced by chemicals.
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Affiliation(s)
- SG Li
- Department of Public Health and Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - SZ Xu
- Department of Public Health and Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - Q Niu
- Department of Public Health and Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - YS Ding
- Department of Public Health and Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - LJ Pang
- Department of Pathology and Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - RL Ma
- Department of Public Health and Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - MX Jing
- Department of Public Health and Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - K Wang
- Department of Public Health and Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - XM Ma
- Department of Pathology, The Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, China
| | - GL Feng
- Department of Public Health and Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - JM Liu
- Department of Public Health and Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - XF Zhang
- Department of Public Health and Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - HL Xiang
- Department of Public Health and Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - F Li
- Department of Pathology and Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, China
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Thiele S, Rauscher FG, Wiedemann P, Dawczynski J. Influence of macular oedema on the measurement of macular pigment optical density. Graefes Arch Clin Exp Ophthalmol 2015; 254:455-65. [DOI: 10.1007/s00417-015-3079-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 05/06/2015] [Accepted: 06/03/2015] [Indexed: 11/29/2022] Open
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Manayi A, Abdollahi M, Raman T, Nabavi SF, Habtemariam S, Daglia M, Nabavi SM. Lutein and cataract: from bench to bedside. Crit Rev Biotechnol 2015; 36:829-39. [DOI: 10.3109/07388551.2015.1049510] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Azadeh Manayi
- Medicinal Plants Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran,
| | - Mohammad Abdollahi
- Department of Toxicology and Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran,
| | - Thiagarajan Raman
- Department of Bioengineering, School of Chemical & Biotechnology, SASTRA University, Thanjavur, India,
| | - Seyed Fazel Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran,
| | - Solomon Habtemariam
- Pharmacognosy Research Laboratories, Medway School of Science, University of Greenwich, Chatham-Maritime, Kent, UK, and
| | - Maria Daglia
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Pavia, Italy
| | - Seyed Mohammad Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran,
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239
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Chagas A, Rios A, Jarenkow A, Marcílio N, Ayub M, Rech R. Production of carotenoids and lipids by Dunaliella tertiolecta using CO2 from beer fermentation. Process Biochem 2015. [DOI: 10.1016/j.procbio.2015.03.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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240
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Glaser TS, Doss LE, Shih G, Nigam D, Sperduto RD, Ferris FL, Agrón E, Clemons TE, Chew EY. The Association of Dietary Lutein plus Zeaxanthin and B Vitamins with Cataracts in the Age-Related Eye Disease Study: AREDS Report No. 37. Ophthalmology 2015; 122:1471-9. [PMID: 25972257 DOI: 10.1016/j.ophtha.2015.04.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 03/27/2015] [Accepted: 04/06/2015] [Indexed: 10/23/2022] Open
Abstract
PURPOSE To evaluate whether dietary intake of luteiin/zeaxanthin and B vitamins is associated with cataract prevalence and incidence. DESIGN Clinic-based, baseline cross-sectional and prospective cohort study designs. PARTICIPANTS Three thousand one hundred fifteen patients (6129 eyes) enrolled in the Age-Related Eye Disease Study 55 to 80 years of age followed up for mean of 9.6 years. METHODS Participants completed baseline food frequency questionnaires. Baseline and annual lens photographs were graded centrally. Multivariate models controlling for previously identified risk factors for cataracts tested for the association of cataracts with reported dietary intake, using the lowest quintile as reference. MAIN OUTCOME MEASURES Cataract surgery, cataract status (type and severity) at baseline, and development of cataracts. RESULTS At baseline, increased dietary riboflavin and B12 were associated inversely with nuclear and cortical lens opacities. In comparisons of persons with and without cataract, persons with the highest riboflavin intake versus those with the lowest intake had the following associations: mild nuclear cataract: odds ratio (OR), 0.78; 95% confidence interval (CI), 0.63-0.97; moderate nuclear cataract: OR, 0.62; 95% CI, 0.43-0.90; and mild cortical cataract: OR, 0.80; 95% CI, 0.65-0.99. For B12, the results were: mild nuclear cataract: OR, 0.78; 95% CI, 0.63-0.96; moderate nuclear cataract: OR, 0.62; 95% CI, 0.43-0.88; and mild cortical cataract: OR, 0.77; 95% CI, 0.63-0.95. Highest dietary B6 intake was associated with a decreased risk of moderate nuclear lens opacity developing compared with the lowest quintile (OR, 0.67; 95% CI, 0.45-0.99). Highest dietary intake levels of niacin and B12 were associated with a decreased risk of development of mild nuclear or mild cortical cataracts in participants not taking Centrum (Pfizer, New York, NY) multivitamins. For participants taking multivitamins during the study, the highest intake of dietary folate was associated with an increased risk of mild posterior subcapsular lens opacity development. No statistically significant associations were found between lutein plus zeaxanthin intake and presence at baseline or development of nuclear or cortical lens opacity outcomes. CONCLUSIONS These findings are consistent with earlier studies suggesting that dietary intake of B vitamins may affect the occurrence of age-related lens opacities. Further investigations are warranted.
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Affiliation(s)
- Tanya S Glaser
- National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - Lauren E Doss
- National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - Grace Shih
- National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - Divya Nigam
- National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | | | - Frederick L Ferris
- National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - Elvira Agrón
- National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | | | - Emily Y Chew
- National Eye Institute, National Institutes of Health, Bethesda, Maryland.
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241
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Campbell R, Morris WL, Mortimer CL, Misawa N, Ducreux LJM, Morris JA, Hedley PE, Fraser PD, Taylor MA. Optimising ketocarotenoid production in potato tubers: effect of genetic background, transgene combinations and environment. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2015; 234:27-37. [PMID: 25804807 DOI: 10.1016/j.plantsci.2015.01.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 01/20/2015] [Accepted: 01/23/2015] [Indexed: 05/07/2023]
Abstract
Astaxanthin is a high value carotenoid produced by some bacteria, a few green algae, several fungi but only a limited number of plants from the genus Adonis. Astaxanthin has been industrially exploited as a feed supplement in poultry farming and aquaculture. Consumption of ketocarotenoids, most notably astaxanthin, is also increasingly associated with a wide range of health benefits, as demonstrated in numerous clinical studies. Currently astaxanthin is produced commercially by chemical synthesis or from algal production systems. Several studies have used a metabolic engineering approach to produce astaxanthin in transgenic plants. Previous attempts to produce transgenic potato tubers biofortified with astaxanthin have met with limited success. In this study we have investigated approaches to optimising tuber astaxanthin content. It is demonstrated that the selection of appropriate parental genotype for transgenic approaches and stacking carotenoid biosynthetic pathway genes with the cauliflower Or gene result in enhanced astaxanthin content, to give six-fold higher tuber astaxanthin content than has been achieved previously. Additionally we demonstrate the effects of growth environment on tuber carotenoid content in both wild type and astaxanthin-producing transgenic lines and describe the associated transcriptome and metabolome restructuring.
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Affiliation(s)
- Raymond Campbell
- Cellular and Molecular Sciences, The James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK
| | - Wayne L Morris
- Cellular and Molecular Sciences, The James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK
| | - Cara L Mortimer
- School of Biological Sciences, Royal Holloway, University of London, Egham Hill, Egham, Surrey TW20 OEX, UK
| | - Norihiko Misawa
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Suematsu, Nonoichi-machi, Iskhikawa 921-8836, Japan
| | - Laurence J M Ducreux
- Cellular and Molecular Sciences, The James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK
| | - Jenny A Morris
- Cellular and Molecular Sciences, The James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK
| | - Pete E Hedley
- Cellular and Molecular Sciences, The James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK
| | - Paul D Fraser
- School of Biological Sciences, Royal Holloway, University of London, Egham Hill, Egham, Surrey TW20 OEX, UK
| | - Mark A Taylor
- Cellular and Molecular Sciences, The James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK.
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242
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Screening antimutagenic and antiproliferative properties of extracts isolated from Jackfruit pulp (Artocarpus heterophyllus Lam). Food Chem 2015; 175:409-16. [DOI: 10.1016/j.foodchem.2014.11.122] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Revised: 11/20/2014] [Accepted: 11/20/2014] [Indexed: 01/16/2023]
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243
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Vachali PP, Li B, Bartschi A, Bernstein PS. Surface plasmon resonance (SPR)-based biosensor technology for the quantitative characterization of protein-carotenoid interactions. Arch Biochem Biophys 2015; 572:66-72. [PMID: 25513962 PMCID: PMC4402104 DOI: 10.1016/j.abb.2014.12.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 11/22/2014] [Accepted: 12/04/2014] [Indexed: 11/27/2022]
Abstract
The surface plasmon resonance (SPR) biosensor method is a highly sensitive, label-free technique to study the non-covalent interactions of biomolecules, especially protein-protein and protein-small molecule interactions. We have explored this robust biosensor platform to study the interactions of carotenoid-binding proteins and their carotenoid ligands to assess the specificity of interaction, kinetics, affinity, and stoichiometry. These characterizations are important to further study uptake and transport of carotenoids to targeted tissues such as the macula of the human eye. In this review, we present an overview of the SPR method and optimization of assay conditions, and we discuss the particular challenges in studying carotenoid-protein interactions using SPR.
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Affiliation(s)
- Preejith P Vachali
- Moran Eye Center, University of Utah School of Medicine, 65 Mario Capecchi Drive, Salt Lake City, UT 84132, United States
| | - Binxing Li
- Moran Eye Center, University of Utah School of Medicine, 65 Mario Capecchi Drive, Salt Lake City, UT 84132, United States
| | - Alexis Bartschi
- Moran Eye Center, University of Utah School of Medicine, 65 Mario Capecchi Drive, Salt Lake City, UT 84132, United States
| | - Paul S Bernstein
- Moran Eye Center, University of Utah School of Medicine, 65 Mario Capecchi Drive, Salt Lake City, UT 84132, United States.
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244
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Lucock M, Jones P, Martin C, Beckett E, Yates Z, Furst J, Veysey M. Vitamin D. J Evid Based Complementary Altern Med 2015; 20:310-22. [DOI: 10.1177/2156587215580491] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Accepted: 03/03/2015] [Indexed: 12/27/2022] Open
Abstract
Interest in vitamin D and the VDR gene is increasing as putative roles in human health and evolutionary processes are explored. This review looks beyond the classic biochemistry that links vitamin D to calcium homeostasis; it explores how vitamin D interacts with light in a broader perspective than simple skin photosynthesis. It examines how the vitamin influences circadian rhythm, and how it may have helped drive the evolution of skin pigmentation. To this end, the nutrient–nutrient relationship with folate is also explored. The VDR gene is additionally examined as a factor in the evolutionary selection of skin depigmentation at higher latitudes to allow vitamin D synthesis. Evidence is given to show that VDR polymorphisms exhibit a latitudinal gradient in allele prevalence consistent with such a paradigm. Overall, the review examines new evo-devo ideas that link light-sensitive vitamins to human health/phenotype, both within and across the lifecycle.
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Affiliation(s)
- Mark Lucock
- University of Newcastle, Ourimbah, New South Wales, Australia
| | - Patrice Jones
- University of Newcastle, Ourimbah, New South Wales, Australia
| | | | - Emma Beckett
- University of Newcastle, Ourimbah, New South Wales, Australia
| | - Zoe Yates
- University of Newcastle, Ourimbah, New South Wales, Australia
| | - John Furst
- University of Newcastle, Ourimbah, New South Wales, Australia
| | - Martin Veysey
- Central Coast Local Health District, Gosford, New South Wales, Australia
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O’Hare TJ, Fanning KJ, Martin IF. Zeaxanthin biofortification of sweet-corn and factors affecting zeaxanthin accumulation and colour change. Arch Biochem Biophys 2015; 572:184-187. [DOI: 10.1016/j.abb.2015.01.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 01/12/2015] [Accepted: 01/19/2015] [Indexed: 10/24/2022]
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Nimalaratne C, Savard P, Gauthier SF, Schieber A, Wu J. Bioaccessibility and digestive stability of carotenoids in cooked eggs studied using a dynamic in vitro gastrointestinal model. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:2956-2962. [PMID: 25748723 DOI: 10.1021/jf505615w] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Among dietary carotenoids, lutein and zeaxanthin are known to protect against age-related macular degeneration, a leading cause of irreversible vision loss in the elderly. Egg yolk is rich in lutein and zeaxanthin, however, the effect of cooking and gastrointestinal digestion on yolk carotenoids is poorly understood. An in vitro dynamic gastrointestinal model (TIM-1) was used to investigate the digestive stability and bioaccessibility of carotenoids from boiled, fried, and scrambled eggs. Bioaccessibility but not digestive stability was significantly affected by the method of cooking. The main egg carotenoids, all-E-lutein and all-E-zeaxanthin, were stable during the digestion with average recoveries of 90 and 88%, respectively. No trans-cis isomerization of carotenoids was observed during digestion. Both all-E-lutein and all-E-zeaxanthin from scrambled eggs showed significantly lower bioaccessibility compared to boiled eggs. The results indicate that the bioaccessibility of egg carotenoids can be affected by different food preparation methods.
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Affiliation(s)
- Chamila Nimalaratne
- †Agriculture/Forestry Building, Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | | | | | - Andreas Schieber
- †Agriculture/Forestry Building, Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
- §Department of Nutritional and Food Sciences, University of Bonn, Römerstrasse 164, D-53117 Bonn, Germany
| | - Jianping Wu
- †Agriculture/Forestry Building, Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
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Effect of supplemental lutein and zeaxanthin on serum, macular pigmentation, and visual performance in patients with early age-related macular degeneration. BIOMED RESEARCH INTERNATIONAL 2015; 2015:564738. [PMID: 25815324 PMCID: PMC4359817 DOI: 10.1155/2015/564738] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 09/21/2014] [Accepted: 09/21/2014] [Indexed: 12/15/2022]
Abstract
Purpose. To compare the 2-year effect of multiple doses of lutein/zeaxanthin on serum, macular pigmentation, and visual performance on patients with early age-related macular degeneration (AMD). Methods. In this randomized, double-blinded, and placebo-controlled trial, 112 early AMD patients randomly received either 10 mg lutein, 20 mg lutein, a combination of lutein (10 mg) and zeaxanthin (10 mg), or placebo daily for 2 years. Serum concentration of lutein/zeaxanthin, macular pigment optical density (MPOD), visual functions including best-spectacle corrected visual acuity (BCVA), contrast sensitivity (CS), flash recovery time (FRT), and vision-related quality of life (VFQ25) was quantified. Results. Serum lutein concentration and MPOD significantly increased in all the active treatment groups. Supplementation with 20 mg lutein was the most effective in increasing MPOD and CS at 3 cycles/degree for the first 48 weeks. However, they both significantly increased to the same peak value following supplementation with either 10 mg or 20 mg lutein during the intervention. No statistical changes of BCVA or FRT were observed during the trial. Conclusions. Long-term lutein supplementation could increase serum lutein concentration, MPOD, and visual sensitivities of early AMD patients. 10 mg lutein daily might be an advisable long-term dosage for early AMD treatment.
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Takemura M, Maoka T, Misawa N. Biosynthetic routes of hydroxylated carotenoids (xanthophylls) in Marchantia polymorpha, and production of novel and rare xanthophylls through pathway engineering in Escherichia coli. PLANTA 2015; 241:699-710. [PMID: 25467956 DOI: 10.1007/s00425-014-2213-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Accepted: 11/23/2014] [Indexed: 05/20/2023]
Abstract
MpBHY codes for a carotene β-ring 3(,3')-hydroxylase responsible for both zeaxanthin and lutein biosynthesis in liverwort. MpCYP97C functions as an ε-ring hydroxylase (zeinoxanthin 3'-hydroxylase) to produce lutein in liverwort. Xanthophylls are oxygenated or hydroxylated carotenes that are most abundant in the light-harvesting complexes of plants. The plant-type xanthophylls consist of α-xanthophyll (lutein) and β-xanthophylls (zeaxanthin, antheraxanthin, violaxanthin and neoxanthin). The α-xanthophyll and β-xanthophylls are derived from α-carotene and β-carotene by carotene hydroxylase activities, respectively. β-Ring 3,3'-hydroxylase that mediates the route of zeaxanthin from β-carotene via β-cryptoxanthin is present in higher plants and is encoded by the BHY (BCH) gene. On the other hand, CYP97A (or BHY) and CYP97C genes are responsible for β-ring 3-hydroxylation and ε-ring 3'-hydroxylation, respectively, in routes from α-carotene to lutein. To elucidate the evolution of the biosynthetic routes of such hydroxylated carotenoids from carotenes in land plants, we identified and functionally analyzed carotenoid hydroxylase genes of liverwort Marchantia polymorpha L. Three genes homologous to higher plants, BHY, CYP97A, and CYP97C, were isolated and named MpBHY, MpCYP97A, and MpCYP97C, respectively. MpBHY was found to code for β-ring hydroxylase, which is responsible for both routes starting from β-carotene and α-carotene. MpCYP97C functioned as an ε-ring hydroxylase not for α-carotene but for zeinoxanthin, while MpCYP97A showed no hydroxylation activity for β-carotene or α-carotene. These findings suggest the original functions of the hydroxylation enzymes of carotenes in land plants, which are thought to diversify in higher plants. In addition, we generated recombinant Escherichia coli cells, which produced rare and novel carotenoids such as α-echinenone and 4-ketozeinoxanthin, through pathway engineering using bacterial carotenogenic genes that include crtW, in addition to the liverwort MpLCYb, MpLCYe and MpBHY genes.
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Affiliation(s)
- Miho Takemura
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, 1-308, Suematsu, Nonoichi, Ishikawa, 921-8836, Japan,
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Neuroprotective therapeutics from botanicals and phytochemicals against Huntington's disease and related neurodegenerative disorders. J Herb Med 2015. [DOI: 10.1016/j.hermed.2015.01.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Widjaja-Adhi MAK, Lobo GP, Golczak M, Von Lintig J. A genetic dissection of intestinal fat-soluble vitamin and carotenoid absorption. Hum Mol Genet 2015; 24:3206-19. [PMID: 25701869 DOI: 10.1093/hmg/ddv072] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 02/18/2015] [Indexed: 12/20/2022] Open
Abstract
Carotenoids are currently investigated regarding their potential to lower the risk of chronic disease and to combat vitamin A deficiency. Surprisingly, responses to dietary supplementation with these compounds are quite variable between individuals. Genome-wide studies have associated common genetic polymorphisms in the BCO1 gene with this variability. The BCO1 gene encodes an enzyme that is expressed in the intestine and converts provitamin A carotenoids to vitamin A-aldehyde. However, it is not clear how this enzyme can impact the bioavailability and metabolism of other carotenoids such as xanthophyll. We here provide evidence that BCO1 is a key component of a regulatory network that controls the absorption of carotenoids and fat-soluble vitamins. In this process, conversion of β-carotene to vitamin A by BCO1 induces via retinoid signaling the expression of the intestinal homeobox transcription factor ISX. Subsequently, ISX binds to conserved DNA-binding motifs upstream of the BCO1 and SCARB1 genes. SCARB1 encodes a membrane protein that facilitates absorption of fat-soluble vitamins and carotenoids. In keeping with its role as a transcriptional repressor, SCARB1 protein levels are significantly increased in the intestine of ISX-deficient mice. This increase results in augmented absorption and tissue accumulation of xanthophyll carotenoids and tocopherols. Our study shows that fat-soluble vitamin and carotenoid absorption is controlled by a BCO1-dependent negative feedback regulation. Thus, our findings provide a molecular framework for the controversial relationship between genetics and fat-soluble vitamin status in the human population.
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Affiliation(s)
- M Airanthi K Widjaja-Adhi
- Department of Pharmacology, School of Medicine, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Glenn P Lobo
- Department of Pharmacology, School of Medicine, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Marcin Golczak
- Department of Pharmacology, School of Medicine, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Johannes Von Lintig
- Department of Pharmacology, School of Medicine, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
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