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Notario-Barandiaran L, Irizar A, Begoña-Zubero M, Soler-Blasco R, Riutort-Mayol G, Fernández-Somoano A, Tardón A, Casas M, Vrijheid M, Meharg A, Carey M, Meharg C, Ralphs K, McCreanor C, Grimalt JO, Vioque J, Signes-Pastor AJ. Association between mediterranean diet and metal(loid) exposure in 4-5-year-old children living in Spain. Environ Res 2023; 233:116508. [PMID: 37392824 DOI: 10.1016/j.envres.2023.116508] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 06/22/2023] [Accepted: 06/23/2023] [Indexed: 07/03/2023]
Abstract
Even relatively low levels of metals exposure may impact health, particularly among vulnerable populations such as infants and young children. However, little is known about the interplay between simultaneous metal exposures, common in real-life scenarios, and their association with specific dietary patterns. In this study, we have evaluated the association between adherence to Mediterranean diet (MD) and urinary metal concentrations individually and as an exposure mixture in 713 children aged 4-5-years from the INMA cohort study. We used a validated food frequency questionnaire to calculate two MD indexes scores: aMED and rMED. These indexes gather information on various food groups within the MD and score differently. To measure urinary concentrations of cobalt, copper, zinc, molybdenum, selenium, lead, and cadmium as exposure biomarkers, we used inductively coupled plasma mass spectrometry (ICP-MS), coupled with an ion chromatography (IC) equipment for arsenic speciation analysis. We applied linear regression and quantile g-computation, adjusted for confounders, to analyse the association between MD adherence and exposure to the metal mixture. High adherence to MD such as the quintile (Q) 5 MD was associated with higher urinary arsenobetaine (AsB) levels than Q1, with β values of 0.55 (confidence interval - CI 95% 0.01; 1.09) for aMED and 0.73 (CI 95% 0.13; 1.33) for rMED. Consumption of fish was associated with increased urinary AsB but reduced inorganic arsenic concentrations. In contrast, the aMED vegetables consumption increased urinary inorganic arsenic content. A moderate level of adherence to MD (Q2 and Q3) was associated with lower copper urinary concentrations than Q1, with β values of -0.42 (CI 95% -0.72; -0.11) for Q2 and -0.33 (CI 95% -0.63; -0.02) for Q3, but only with aMED. Our study, conducted in Spain, revealed that adhering to the MD reduces exposure to certain metals while increasing exposure to others. Specifically, we observed increase in exposure to non-toxic AsB, highlighting the significance of consuming fish/seafood. However, it is crucial to emphasize the necessity for additional efforts in reducing early-life exposure to toxic metals, even when adhering to certain food components of the MD.
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Affiliation(s)
- L Notario-Barandiaran
- Unidad de Epidemiología de La Nutrición, Universidad Miguel Hernández, Alicante, Spain; Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), Alicante, Spain.
| | - A Irizar
- Biodonostia, Health Research Institute, Donostia, Gipuzkoa, Spain
| | - M Begoña-Zubero
- Biodonostia, Health Research Institute, Donostia, Gipuzkoa, Spain; Preventive Medicine and Public Health Department, University of the Basque Country, Leioa, Bizkaia, Spain
| | - R Soler-Blasco
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de València, Valencia, Spain; Department of Nursing, Universitat de València, Valencia, Spain
| | - G Riutort-Mayol
- Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, Valencia, Spain
| | - A Fernández-Somoano
- CIBER de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain; Unidad de Epidemiología Molecular Del Cáncer, Instituto Universitario de Oncología Del Principado de Asturias (IUOPA), Departamento de Medicina, Universidad de Oviedo, 33006, Oviedo, Spain; Instituto de Investigación Sanitaria Del Principado de Asturias (ISPA), 33001, Oviedo, Spain
| | - A Tardón
- CIBER de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain; Unidad de Epidemiología Molecular Del Cáncer, Instituto Universitario de Oncología Del Principado de Asturias (IUOPA), Departamento de Medicina, Universidad de Oviedo, 33006, Oviedo, Spain; Instituto de Investigación Sanitaria Del Principado de Asturias (ISPA), 33001, Oviedo, Spain
| | - M Casas
- CIBER de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain; Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - M Vrijheid
- CIBER de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain; Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - A Meharg
- School of Biological Sciences, Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland, UK
| | - M Carey
- School of Biological Sciences, Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland, UK
| | - C Meharg
- School of Biological Sciences, Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland, UK
| | - K Ralphs
- School of Biological Sciences, Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland, UK
| | - C McCreanor
- School of Biological Sciences, Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland, UK
| | - J O Grimalt
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Jordi Girona Street, 18-26, 08034, Barcelona, Cataluña, Spain
| | - J Vioque
- Unidad de Epidemiología de La Nutrición, Universidad Miguel Hernández, Alicante, Spain; Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), Alicante, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain
| | - A J Signes-Pastor
- Unidad de Epidemiología de La Nutrición, Universidad Miguel Hernández, Alicante, Spain; Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), Alicante, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain.
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Pogoson E, Carey M, Meharg C, Meharg AA. Reducing the cadmium, inorganic arsenic and dimethylarsinic acid content of rice through food-safe chemical cooking pre-treatment. Food Chem 2020; 338:127842. [PMID: 32822902 DOI: 10.1016/j.foodchem.2020.127842] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/03/2020] [Accepted: 08/12/2020] [Indexed: 11/29/2022]
Abstract
Cadmium, inorganic arsenic and, potentially, dimethyl arsenic acid are carcinogens widely elevated in rice. Here it was identified that the food-safe and common cadmium chelator citric acid efficiently removed cadmium from intact grain via pre-soaking procedure, while also reducing arsenic species. A twostep pre-soaking stage was developed whereby rice was first incubated, at ambient temperature, in 1 M citric acid for 12 h, and then in 1 M calcium carbonate for another 12 h, the latter step to neutralize pH, followed by cooking. When 10 different individual types of rice were processed in such a way this resulted in removal rates of 79% for cadmium, 81% for inorganic arsenic and a 66% for DMA. The technology is particularly suitable for bulk food processing and could be deployed in the most cadmium and arsenic impacted regions where rice is a staple.
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Affiliation(s)
- E Pogoson
- Institute for Global Food Security, Queen's University Belfast, Biological Sciences Building, Chlorine Gardens, Belfast, Northern Ireland BT9 5DL, United Kingdom
| | - M Carey
- Institute for Global Food Security, Queen's University Belfast, Biological Sciences Building, Chlorine Gardens, Belfast, Northern Ireland BT9 5DL, United Kingdom
| | - C Meharg
- Institute for Global Food Security, Queen's University Belfast, Biological Sciences Building, Chlorine Gardens, Belfast, Northern Ireland BT9 5DL, United Kingdom.
| | - A A Meharg
- Institute for Global Food Security, Queen's University Belfast, Biological Sciences Building, Chlorine Gardens, Belfast, Northern Ireland BT9 5DL, United Kingdom.
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McKernan C, Meharg C, Carey M, Donaldson E, Williams P, Savage L, Meharg AA. Feed-derived iodine overrides environmental contribution to cow milk. J Dairy Sci 2020; 103:6930-6939. [PMID: 32475661 DOI: 10.3168/jds.2019-17446] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 03/24/2020] [Indexed: 11/19/2022]
Abstract
Diets worldwide are deficient in iodine, leading to a range of undesirable health effects at the population level. Dairy products are a primary source of iodine in diets for those populations in which iodized salt is not systematically used or available. However, the flows of iodine through dairy agroecosystems are not well understood. The aim of this research was to investigate iodine flows though the dairy agroecosystem, including the influence of atmospheric depositional inputs, environmental variables, season, husbandry, and diet. Three farm-based sampling campaigns were carried out in this investigation, with milk, soil, silage, grass, and feed iodine determined by inductively coupled plasma mass spectroscopy, and nonparametric statistical analysis tests were conducted on data sets obtained. Natural iodine inputs into the environment are dominated by atmospheric deposition, which mainly from sea spray, and thus the location of farms relative to the coast and prevailing wind direction. Herbage and silage produced from grass-based systems strongly correlated with soil iodine, yet there was a strong disconnect between soil, forage, and feed and the milk that results. This was due to the levels of iodine in supplemental feeds being approximately 10-fold higher than those in forage-derived feeds. The practice of feed supplementation, accentuated by summer housing of cows, led to elevated milk iodine.
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Affiliation(s)
- C McKernan
- Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, United Kingdom
| | - C Meharg
- Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, United Kingdom.
| | - M Carey
- Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, United Kingdom
| | - E Donaldson
- Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, United Kingdom
| | - P Williams
- Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, United Kingdom
| | - L Savage
- Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, United Kingdom
| | - A A Meharg
- Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, United Kingdom.
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Carroll AM, Cheng R, Collie-Duguid ESR, Meharg C, Scholz ME, Fiering S, Fields JL, Palmer AA, Lionikas A. Fine-mapping of genes determining extrafusal fiber properties in murine soleus muscle. Physiol Genomics 2017; 49:141-150. [PMID: 28087756 PMCID: PMC5374456 DOI: 10.1152/physiolgenomics.00092.2016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 12/07/2016] [Accepted: 12/12/2016] [Indexed: 02/08/2023] Open
Abstract
Muscle fiber cross-sectional area (CSA) and proportion of different fiber types are important determinants of muscle function and overall metabolism. Genetic variation plays a substantial role in phenotypic variation of these traits; however, the underlying genes remain poorly understood. This study aimed to map quantitative trait loci (QTL) affecting differences in soleus muscle fiber traits between the LG/J and SM/J mouse strains. Fiber number, CSA, and proportion of oxidative type I fibers were assessed in the soleus of 334 genotyped female and male mice of the F34 generation of advanced intercross lines (AIL) derived from the LG/J and SM/J strains. To increase the QTL detection power, these data were combined with 94 soleus samples from the F2 intercross of the same strains. Transcriptome of the soleus muscle of LG/J and SM/J females was analyzed by microarray. Genome-wide association analysis mapped four QTL (genome-wide P < 0.05) affecting the properties of muscle fibers to chromosome 2, 3, 4, and 11. A 1.5-LOD QTL support interval ranged between 2.36 and 4.67 Mb. On the basis of the genomic sequence information and functional and transcriptome data, we identified candidate genes for each of these QTL. The combination of analyses in F2 and F34 AIL populations with transcriptome and genomic sequence data in the parental strains is an effective strategy for refining QTL and nomination of the candidate genes.
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Affiliation(s)
- A M Carroll
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Foresterhill Aberdeen, United Kingdom.,The New Zealand Institute for Plant & Food Research Limited, Palmerston North, New Zealand
| | - R Cheng
- Research School of Biology, Australian National University, Acton, Australia
| | - E S R Collie-Duguid
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Foresterhill Aberdeen, United Kingdom.,Centre for Genome Enabled Biology and Medicine, University of Aberdeen, Old Aberdeen, Aberdeen, United Kingdom
| | - C Meharg
- Institute for Global Food Security, Queen's University Belfast, Belfast, United Kingdom
| | - M E Scholz
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Foresterhill Aberdeen, United Kingdom
| | - S Fiering
- Department of Microbiology/Immunology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire; and
| | - J L Fields
- Department of Microbiology/Immunology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire; and
| | - A A Palmer
- Department of Psychiatry, University of California San Diego, La Jolla, California
| | - A Lionikas
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Foresterhill Aberdeen, United Kingdom;
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Abstract
Recurrent aphthous stomatitis (RAS) is the most common disease affecting oral mucosae. Etiology is unknown, but several factors have been implicated, all of which influence the composition of microbiota residing on oral mucosae, which in turn modulates immunity and thereby affects disease progression. Although no individual pathogens have been conclusively shown to be causative agents of RAS, imbalanced composition of the oral microbiota may play a key role. In this study, we sought to determine composition profiles of bacterial microbiota in the oral mucosa associated with RAS. Using high-throughput 16S rRNA gene sequencing, we characterized the most abundant bacterial populations residing on healthy and ulcerated mucosae in patients with RAS (recruited using highly stringent criteria) and no associated medical conditions; we also compared these to the bacterial microbiota of healthy controls (HCs). Phylum-level diversity comparisons revealed decreased Firmicutes and increased Proteobacteria in ulcerated sites, as compared with healthy sites in RAS patients, and no differences between RAS patients with healthy sites and HCs. Genus-level analysis demonstrated higher abundance of total Bacteroidales in RAS patients with healthy sites over HCs. Porphyromonadaceae comprising species associated with periodontal disease and Veillonellaceae predominated in ulcerated sites over HCs, while no quantitative differences of these families were observed between healthy sites in RAS patients and HCs. Streptococcaceae comprising species associated with oral health predominated in HCs over ulcerated sites but not in HCs over healthy sites in RAS patients. This study demonstrates that mucosal microbiome changes in patients with idiopathic RAS--namely, increased Bacteroidales species in mucosae of RAS patients not affected by active ulceration. While these changes suggest a microbial role in initiation of RAS, this study does not provide data on causality. Within this limitation, the study contributes to the understanding of the potential role of mucosal microbiome changes in oral mucosal disease.
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Affiliation(s)
- K Hijazi
- School of Medicine and Dentistry, Division of Medical and Dental Education, University of Aberdeen, Aberdeen, UK
| | - T Lowe
- Maxillofacial Unit, Aberdeen Royal Infirmary, Aberdeen, UK
| | - C Meharg
- School of Biological Sciences, Institute for Global Food Security, Queen's University Belfast, Belfast, UK
| | - S H Berry
- School of Medicine and Dentistry, Division of Applied Medicine, University of Aberdeen, Aberdeen, UK
| | - J Foley
- School of Medicine and Dentistry, Division of Medical and Dental Education, University of Aberdeen, Aberdeen, UK Edinburgh Dental Institute, Edinburgh, UK
| | - G L Hold
- School of Medicine and Dentistry, Division of Applied Medicine, University of Aberdeen, Aberdeen, UK
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Mukhopadhya I, Hansen R, Meharg C, Thomson JM, Russell RK, Berry SH, El-Omar EM, Hold GL. The fungal microbiota of de-novo paediatric inflammatory bowel disease. Microbes Infect 2014; 17:304-10. [PMID: 25522934 PMCID: PMC4392392 DOI: 10.1016/j.micinf.2014.12.001] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Revised: 11/17/2014] [Accepted: 12/01/2014] [Indexed: 02/08/2023]
Abstract
Inflammatory bowel disease (IBD) is characterised by an inappropriate chronic immune response against resident gut microbes. This may be on account of distinct changes in the gut microbiota termed as dysbiosis. The role of fungi in this altered luminal environment has been scarcely reported. We studied the fungal microbiome in de-novo paediatric IBD patients utilising next generation sequencing and compared with adult disease and normal controls. We report a distinct difference in fungal species with Ascomycota predominating in control subjects compared to Basidiomycota dominance in children with IBD, which could be as a result of altered tolerance in these patients.
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Affiliation(s)
- I Mukhopadhya
- Gastrointestinal Research Group, Division of Applied Medicine, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom
| | - R Hansen
- Gastrointestinal Research Group, Division of Applied Medicine, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom; Department of Paediatric Gastroenterology, The Royal Hospital for Sick Children, Glasgow G3 8SJ, United Kingdom
| | - C Meharg
- Institute for Global Food Security, Queen's University Belfast, David Keir Building, Malone Road, Belfast BT9 5BN, Northern Ireland, United Kingdom
| | - J M Thomson
- Gastrointestinal Research Group, Division of Applied Medicine, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom
| | - R K Russell
- Department of Paediatric Gastroenterology, The Royal Hospital for Sick Children, Glasgow G3 8SJ, United Kingdom
| | - S H Berry
- Gastrointestinal Research Group, Division of Applied Medicine, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom
| | - E M El-Omar
- Gastrointestinal Research Group, Division of Applied Medicine, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom
| | - G L Hold
- Gastrointestinal Research Group, Division of Applied Medicine, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom.
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