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Yao Q, Yan SA, Huang M, Zheng Y, Chen M, Lin Q. Assessing transfer of aluminum during tea brewing and associated population health risks. Drug Chem Toxicol 2023; 46:423-429. [PMID: 35266432 DOI: 10.1080/01480545.2022.2049288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
Tea is consumed widely around the world owing to its refreshing taste and potential health benefits. However, drinking tea is considered a major route for dietary aluminum exposure in areas where tea consumption is relatively large. To assess the health risk associated with drinking tea, the contamination level of aluminum was determined in 81 tea samples. The transfer rate of aluminum during tea brewing was investigated. Then based on the site-specific exposure parameters such as consumption data and body weight for six different subpopulations in Fujian, the exposure risks were estimated using a probabilistic approach. Results demonstrate that the contents of aluminum in green tea, white tea, oolong tea, and black tea were significantly different according to the one-way ANOVA analysis (p < 0.05). The transfer rate of aluminum were 32.6%, 31.6%, 26.3%, and 14% for white tea, black tea, oolong tea, and green tea, respectively. With respect to the oral reference dose, the exposure of inhabitants in Fujian to aluminum through drinking tea is under control (even at the 99th percentile).
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Affiliation(s)
- Qinghua Yao
- Fujian Key Laboratory of Agro-Products Quality and Safety, Fuzhou, China.,Institute of Quality Standards Testing Technology for Agro-Products, Fujian Academy of Agricultural Sciences, Fuzhou, China
| | - Sun-An Yan
- Fujian Key Laboratory of Agro-Products Quality and Safety, Fuzhou, China.,Institute of Quality Standards Testing Technology for Agro-Products, Fujian Academy of Agricultural Sciences, Fuzhou, China
| | - Minmin Huang
- Fujian Key Laboratory of Agro-Products Quality and Safety, Fuzhou, China.,Institute of Quality Standards Testing Technology for Agro-Products, Fujian Academy of Agricultural Sciences, Fuzhou, China
| | - Yunyun Zheng
- Fujian Key Laboratory of Agro-Products Quality and Safety, Fuzhou, China.,Institute of Quality Standards Testing Technology for Agro-Products, Fujian Academy of Agricultural Sciences, Fuzhou, China
| | - Meizhen Chen
- Institute of Quality Standards Testing Technology for Agro-Products, Fujian Academy of Agricultural Sciences, Fuzhou, China
| | - Qiu Lin
- Fujian Key Laboratory of Agro-Products Quality and Safety, Fuzhou, China.,Institute of Quality Standards Testing Technology for Agro-Products, Fujian Academy of Agricultural Sciences, Fuzhou, China
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2
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Aguilera-Lizarraga J. Gut reactions: emerging mechanisms of abdominal pain from food intake. Am J Physiol Gastrointest Liver Physiol 2022; 323:G401-G409. [PMID: 36126222 DOI: 10.1152/ajpgi.00173.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Abdominal pain, which is a form of visceral pain, is a highly prevalent symptom worldwide frequently occurring following food ingestion. Its pathophysiology is complex, and many factors, including intestinal environmental cues, the immune system, or the molecular composition of foods, can influence the development of postprandial abdominal pain. Because of the poor efficacy of drug treatments, current strategies are often limited to the exclusion of culprit food(s) from the diet. However, there are two important limitations to this approach. First, patients suffering from food-induced abdominal pain usually recognize several food items as the cause of their gastrointestinal symptoms. Second, not all offending foods can always be identified by these patients. Newly identified mechanisms involving neuroimmune interactions and their communication with the intestinal microbiota shed light on the development of new therapeutic strategies. In this Mini-Review, these novel mechanisms and relevance of such findings are highlighted.
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Affiliation(s)
- Javier Aguilera-Lizarraga
- Laboratory for Intestinal Neuroimmune Interactions, Translational Research Centre for Gastrointestinal Disorders, Department of Chronic Diseases, Metabolism and Ageing, KU Leuven, Leuven, Belgium
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3
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Eyenga E, Tang EN, Achu MBL, Boulanger R, Mbacham WF, Ndindeng SA. Physical, nutritional, and sensory quality of rice-based biscuits fortified with safou ( Dacryodes edulis) fruit powder. Food Sci Nutr 2020; 8:3413-3424. [PMID: 32724605 PMCID: PMC7382197 DOI: 10.1002/fsn3.1622] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/09/2020] [Accepted: 04/10/2020] [Indexed: 11/11/2022] Open
Abstract
The reduction of postharvest losses in rice and safou is imperative to increase productivity in their respective value chains. In this study, fine broken rice grains were used to produce rice flour and subsequently rice-based biscuits. The biscuits were further fortified with safou powder, and the physical, nutritional, and sensory quality and stability during storage of the different types of biscuits were analyzed using standard methods. Fine or nonsandy biscuits had peak particle size of 500 µm, while medium (slightly sandy) and large (sandy) biscuits had peak particle sizes of 1,000 µm and 1,400 µm, respectively. The hardness varied from 5.7 ± 2.3 N for biscuits with large particles to 16.1 ± 4.4 N for biscuits with fine particles. Fortification of biscuits with sour safou increased the protein and amino acid content of the biscuits. Tryptophan was absent in both safou and the biscuits produced. There was an increase in phosphorus, potassium, calcium, magnesium, copper, iron, manganese, and aluminum following fortification with safou. Nonsandy biscuits dissolved faster in the mouth (melt) during consumption than the other biscuits although most of the biscuits were perceived to be low in melting and buttery. Nonsandy biscuits were rated as "very good," while slightly sandy and sandy were rated as "good." Safou rice-based biscuits were perceived as "very good," while simple rice biscuits were perceived as "good." Fortification of rice biscuits with safou increased the protein, essential amino acid, and mineral contents of the biscuits with very appreciable taste. These biscuits can be used to help fight protein, iron, and zinc malnutrition and in mitigating postharvest losses of underutilized broken rice and safou especially sour safou.
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Affiliation(s)
- Eliane‐Flore Eyenga
- Laboratory of Food Science and TechnologyInstitute of Agricultural Research for Development (IRAD)YaoundéCameroon
| | - Erasmus Nchuaji Tang
- Laboratory of Food Science and TechnologyInstitute of Agricultural Research for Development (IRAD)YaoundéCameroon
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Igbokwe IO, Igwenagu E, Igbokwe NA. Aluminium toxicosis: a review of toxic actions and effects. Interdiscip Toxicol 2019; 12:45-70. [PMID: 32206026 PMCID: PMC7071840 DOI: 10.2478/intox-2019-0007] [Citation(s) in RCA: 137] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 08/29/2019] [Indexed: 12/11/2022] Open
Abstract
Aluminium (Al) is frequently accessible to animal and human populations to the extent that intoxications may occur. Intake of Al is by inhalation of aerosols or particles, ingestion of food, water and medicaments, skin contact, vaccination, dialysis and infusions. Toxic actions of Al induce oxidative stress, immunologic alterations, genotoxicity, pro-inflammatory effect, peptide denaturation or transformation, enzymatic dysfunction, metabolic derangement, amyloidogenesis, membrane perturbation, iron dyshomeostasis, apoptosis, necrosis and dysplasia. The pathological conditions associated with Al toxicosis are desquamative interstitial pneumonia, pulmonary alveolar proteinosis, granulomas, granulomatosis and fibrosis, toxic myocarditis, thrombosis and ischemic stroke, granulomatous enteritis, Crohn's disease, inflammatory bowel diseases, anemia, Alzheimer's disease, dementia, sclerosis, autism, macrophagic myofasciitis, osteomalacia, oligospermia and infertility, hepatorenal disease, breast cancer and cyst, pancreatitis, pancreatic necrosis and diabetes mellitus. The review provides a broad overview of Al toxicosis as a background for sustained investigations of the toxicology of Al compounds of public health importance.
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Affiliation(s)
- Ikechukwu Onyebuchi Igbokwe
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, University of Maiduguri, Maiduguri, Nigeria
| | - Ephraim Igwenagu
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, University of Maiduguri, Maiduguri, Nigeria
| | - Nanacha Afifi Igbokwe
- Department Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Maiduguri, Maiduguri, Nigeria
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Abdolhaleem HA, Elaziz MA, Bashandy MM, Mikhail WZA. Impact of Camel's Milk on Aluminum Chloride (Alcl3) - Induced Toxicity in Rats. BIOSCIENCES BIOTECHNOLOGY RESEARCH ASIA 2019; 16:669-679. [DOI: 10.13005/bbra/2782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
The present study was carried out to evaluate the efficiency of camel's milk to ameliorate the toxicity of aluminum chloride AlCl3 on some hematological parameters; hepatic,renal functions andlipids profile; as well ashistopathological alterations of some organs. Forty rats (8 / group) were divided into 5 treatment groups:Group1: Normal rats (negative control); Group2: AlCl3induced toxicity rats (positive control); Group3: AlCl3induced toxicity rats fed with raw camel milk; Group4: AlCl3 induced toxicity rats fed with heat treated camel milk; andGroup5: AlCl3 induced toxicity rats fed with sweet acidophilus camel milk.Rats were treatedby 5ml camel’s milk 10 min before the administration of 1 ml AlCl3 (0.5 mg / kgbody weight); and had their respective doses daily for 30 successive days orally. AlCl3 oral administration resulted in a significant decrease in red blood cells count (RBC's), significant increase in mean corpuscular volume (MCV) and mean corpuscular hemoglobin (MCH); while hemoglobin (Hb), hematocrite (Hct), platelets(plt), reticulocytes (Ret), mean corpuscular hemoglobin concentration (MCHC) did not revealed significant changes; the obtained anemia was macrocytic normochromic. The lipids profile; hepatic and renal functions showed non significant changes between different groups; however, histopathological examination showed variable alterations of varying severity in some organs; besides their response to camel's milk administration. Camel’s milk administration in groups 3, 4, 5 alleviated the toxic effect of AlCl3 with variable degrees between different groups.
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Affiliation(s)
- Hala A. Abdolhaleem
- Dairy Department, Food Technology Research Institute, Agricultural Research Center, Ministry of Agriculture, Giza, Egypt
| | - Magda Abd Elaziz
- Dairy Chemistry Department., Animal production Research Institute, Agricultural Research Center, Ministry of Agriculture, Dokki -Giza, Egypt
| | - Mostafa M. Bashandy
- Clinical Pathology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Wafai Z. A. Mikhail
- Department of Natural Resources, Faculty of African Postgraduate Studies, Cairo University, Giza Egypt
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Aguilera-Correa JJ, Auñón Á, Boiza-Sánchez M, Mahillo-Fernández I, Mediero A, Eguibar-Blázquez D, Conde A, Arenas MÁ, de-Damborenea JJ, Cordero-Ampuero J, Esteban J. Urine Aluminum Concentration as a Possible Implant Biomarker of Pseudomonas aeruginosa Infection Using a Fluorine- and Phosphorus-Doped Ti-6Al-4V Alloy with Osseointegration Capacity. ACS OMEGA 2019; 4:11815-11823. [PMID: 31460290 PMCID: PMC6682075 DOI: 10.1021/acsomega.9b00898] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Accepted: 06/10/2019] [Indexed: 06/10/2023]
Abstract
Joint prosthesis failure is mainly related to aseptic loosening and prosthetic joint infections, both associated with high morbidity and a substantial cost burden for patients and health systems. The development of a biomaterial capable of stimulating bone growth while minimizing bacterial adhesion would reduce the incidence of prosthetic failure. Using an in vivo rabbit model, this study evaluates the osseointegration effect of the fluorine (F)- and phosphorus (P)-doped bottle-shaped nanostructured (bNT) Ti-6Al-4V alloy and effectiveness of monitoring urine aluminum concentration to determine the presence of Pseudomonas aeruginosa infection in Ti-6Al-4V implants. Unlike chemically polished (CP) Ti-6Al-4V alloy implants, bNT Ti-6Al-4V alloy implants promoted osseointegration and showed effectiveness as a biomaterial marker. The bNT Ti-6Al-4V alloy implants were associated with a twofold increase in bone thickness and up to 15% greater bone density compared to the CP alloy. Additionally, bNT Ti-6Al-4V alloy implants allowed for discrimination between P. aeruginosa-infected and noninfected animals for 15 days postoperatively, as indicated by the decrease of aluminum concentration in urine, while this difference was only appreciable over the first 7 days when CP Ti-6Al-4V alloy implants were used. Therefore, bNT Ti-6Al-4V alloys could have clinical applications by detecting the infection and by avoiding aseptic loosening.
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Affiliation(s)
- John-Jairo Aguilera-Correa
- Clinical Microbiology Department, Joint and Bone Research Unit,
and Experimental Surgery and
Animal Research Service, IIS-Fundación
Jimenez Diaz, UAM. Av. Reyes Católicos, 2, 28040 Madrid, Spain
| | - Álvaro Auñón
- Orthopedic Surgery Service, Pathology Department, and Epidemiology
and Biostatistics
Service, Fundación Jiménez
Díaz University Hospital, Av. Reyes Católicos, 2, 28040 Madrid, Spain
| | - Macarena Boiza-Sánchez
- Orthopedic Surgery Service, Pathology Department, and Epidemiology
and Biostatistics
Service, Fundación Jiménez
Díaz University Hospital, Av. Reyes Católicos, 2, 28040 Madrid, Spain
| | - Ignacio Mahillo-Fernández
- Orthopedic Surgery Service, Pathology Department, and Epidemiology
and Biostatistics
Service, Fundación Jiménez
Díaz University Hospital, Av. Reyes Católicos, 2, 28040 Madrid, Spain
| | - Aranzazu Mediero
- Clinical Microbiology Department, Joint and Bone Research Unit,
and Experimental Surgery and
Animal Research Service, IIS-Fundación
Jimenez Diaz, UAM. Av. Reyes Católicos, 2, 28040 Madrid, Spain
| | - Diego Eguibar-Blázquez
- Clinical Microbiology Department, Joint and Bone Research Unit,
and Experimental Surgery and
Animal Research Service, IIS-Fundación
Jimenez Diaz, UAM. Av. Reyes Católicos, 2, 28040 Madrid, Spain
| | - Ana Conde
- Corrosion
and Material Protection Group, National
Center for Metallurgical Research (CENIM-CSIC), Av. Gregorio del Amo, 8, 28040 Madrid, Spain
| | - María-Ángeles Arenas
- Corrosion
and Material Protection Group, National
Center for Metallurgical Research (CENIM-CSIC), Av. Gregorio del Amo, 8, 28040 Madrid, Spain
| | - Juan-José de-Damborenea
- Corrosion
and Material Protection Group, National
Center for Metallurgical Research (CENIM-CSIC), Av. Gregorio del Amo, 8, 28040 Madrid, Spain
| | - José Cordero-Ampuero
- Department
of Orthopaedic Surgery, University Hospital
La Princesa, c/Diego de León 62, 28006 Madrid, Spain
| | - Jaime Esteban
- Clinical Microbiology Department, Joint and Bone Research Unit,
and Experimental Surgery and
Animal Research Service, IIS-Fundación
Jimenez Diaz, UAM. Av. Reyes Católicos, 2, 28040 Madrid, Spain
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7
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Mostaed E, Sikora-Jasinska M, Drelich JW, Vedani M. Zinc-based alloys for degradable vascular stent applications. Acta Biomater 2018; 71:1-23. [PMID: 29530821 PMCID: PMC5927626 DOI: 10.1016/j.actbio.2018.03.005] [Citation(s) in RCA: 154] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 02/16/2018] [Accepted: 03/02/2018] [Indexed: 02/06/2023]
Abstract
The search for biodegradable metals with mechanical properties equal or higher to those of currently used permanent biomaterials, such as stainless steels, cobalt chromium and titanium alloys, desirable in vivo degradation rate and uniform corrosion is still an open challenge. Magnesium (Mg), iron (Fe) and zinc (Zn)-based alloys have been proposed as biodegradable metals for medical applications. Over the last two decades, extensive research has been done on Mg and Fe. Fe-based alloys show appropriate mechanical properties, but their degradation rate is an order of magnitude below the benchmark value. In comparison, alongside the insufficient mechanical performance of most of its alloys, Mg degradation rate has proven to be too high in a physiological environment and corrosion is rarely uniform. During the last few years, Zn alloys have been explored by the biomedical community as potential materials for bioabsorbable vascular stents due to their tolerable corrosion rates and tunable mechanical properties. This review summarizes recent progress made in developing Zn alloys for vascular stenting application. Novel Zn alloys are discussed regarding their microstructural characteristics, mechanical properties, corrosion behavior and in vivo performance. STATEMENT OF SIGNIFICANCE Numerous studies on magnesium and iron materials have been reported to date, in an effort to formulate bioabsorbable stents with tailorable mechanical characteristics and corrosion behavior. Crucial concerns regarding poor ductility and remarkably rapid corrosion of magnesium, and very slow degradation of iron, seem to be still not desirably fulfilled. Zinc was introduced as a potential implant material in 2013 due to its promising biodegradability and biocompatibility. Since then, extensive investigations have been made toward development of zinc alloys that meet clinical benchmarks for vascular scaffolding. This review critically surveys the zinc alloys developed since 2013 from metallurgical and biodegradation points of view. Microstructural features, mechanical, corrosion and in vivo performances of these new alloys are thoroughly reviewed and evaluated.
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Affiliation(s)
- Ehsan Mostaed
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, MI 49931, USA; Department of Mechanical Engineering, Politecnico di Milano, Milan, Italy.
| | - Malgorzata Sikora-Jasinska
- Department of Mechanical Engineering, Politecnico di Milano, Milan, Italy; Laboratory for Biomaterials & Bioengineering (CRC-I), Department Min-Met-Materials Engineering & Research Center CHU de Québec, Laval University, Québec City, Canada
| | - Jaroslaw W Drelich
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, MI 49931, USA
| | - Maurizio Vedani
- Department of Mechanical Engineering, Politecnico di Milano, Milan, Italy
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8
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Sieg H, Kästner C, Krause B, Meyer T, Burel A, Böhmert L, Lichtenstein D, Jungnickel H, Tentschert J, Laux P, Braeuning A, Estrela-Lopis I, Gauffre F, Fessard V, Meijer J, Luch A, Thünemann AF, Lampen A. Impact of an Artificial Digestion Procedure on Aluminum-Containing Nanomaterials. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:10726-10735. [PMID: 28903564 DOI: 10.1021/acs.langmuir.7b02729] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Aluminum has gathered toxicological attention based on relevant human exposure and its suspected hazardous potential. Nanoparticles from food supplements or food contact materials may reach the human gastrointestinal tract. Here, we monitored the physicochemical fate of aluminum-containing nanoparticles and aluminum ions when passaging an in vitro model of the human gastrointestinal tract. Small-angle X-ray scattering (SAXS), transmission electron microscopy (TEM), ion beam microscopy (IBM), secondary ion beam mass spectrometry (TOF-SIMS), and inductively coupled plasma mass spectrometry (ICP-MS) in the single-particle mode were employed to characterize two aluminum-containing nanomaterials with different particle core materials (Al0, γAl2O3) and soluble AlCl3. Particle size and shape remained unchanged in saliva, whereas strong agglomeration of both aluminum nanoparticle species was observed at low pH in gastric fluid together with an increased ion release. The levels of free aluminum ions decreased in intestinal fluid and the particles deagglomerated, thus liberating primary particles again. Dissolution of nanoparticles was limited and substantial changes of their shape and size were not detected. The amounts of particle-associated phosphorus, chlorine, potassium, and calcium increased in intestinal fluid, as compared to nanoparticles in standard dispersion. Interestingly, nanoparticles were found in the intestinal fluid after addition of ionic aluminum. We provide a comprehensive characterization of the fate of aluminum nanoparticles in simulated gastrointestinal fluids, demonstrating that orally ingested nanoparticles probably reach the intestinal epithelium. The balance between dissolution and de novo complex formation should be considered when evaluating nanotoxicological experiments.
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Affiliation(s)
- Holger Sieg
- German Federal Institute for Risk Assessment , Department of Food Safety, Max-Dohrn-Straße 8-10, 10589 Berlin, Germany
| | - Claudia Kästner
- Bundesanstalt für Materialforschung und -prüfung (BAM) , Unter den Eichen 87, 12205 Berlin, Germany
| | - Benjamin Krause
- German Federal Institute for Risk Assessment , Department of Chemical and Product Safety, Max-Dohrn-Straße 8-10, 10589 Berlin, Germany
| | - Thomas Meyer
- Institute of Medical Physics and Biophysics, Leipzig University , Härtelstrasse 16-18, 04275 Leipzig, Germany
| | - Agnès Burel
- Institut des Sciences Chimiques de Rennes, UMR-CNRS 6226, Université de Rennes, 35700 Rennes, France
| | - Linda Böhmert
- German Federal Institute for Risk Assessment , Department of Food Safety, Max-Dohrn-Straße 8-10, 10589 Berlin, Germany
| | - Dajana Lichtenstein
- German Federal Institute for Risk Assessment , Department of Food Safety, Max-Dohrn-Straße 8-10, 10589 Berlin, Germany
| | - Harald Jungnickel
- German Federal Institute for Risk Assessment , Department of Chemical and Product Safety, Max-Dohrn-Straße 8-10, 10589 Berlin, Germany
| | - Jutta Tentschert
- German Federal Institute for Risk Assessment , Department of Chemical and Product Safety, Max-Dohrn-Straße 8-10, 10589 Berlin, Germany
| | - Peter Laux
- German Federal Institute for Risk Assessment , Department of Chemical and Product Safety, Max-Dohrn-Straße 8-10, 10589 Berlin, Germany
| | - Albert Braeuning
- German Federal Institute for Risk Assessment , Department of Food Safety, Max-Dohrn-Straße 8-10, 10589 Berlin, Germany
| | - Irina Estrela-Lopis
- Institute of Medical Physics and Biophysics, Leipzig University , Härtelstrasse 16-18, 04275 Leipzig, Germany
| | - Fabienne Gauffre
- Institut des Sciences Chimiques de Rennes, UMR-CNRS 6226, Université de Rennes, 35700 Rennes, France
| | - Valérie Fessard
- Fougères Laboratory, Toxicology of contaminants unit, ANSES, French Agency for Food, Environmental and Occupational Health and Safety, 10B rue Claude Bourgelat, 35306 Cedex, Fougères, France
| | - Jan Meijer
- Felix Bloch Institute for Solid State Physics, Leipzig University , Linnéstraße 5, 04103 Leipzig, Germany
| | - Andreas Luch
- German Federal Institute for Risk Assessment , Department of Chemical and Product Safety, Max-Dohrn-Straße 8-10, 10589 Berlin, Germany
| | - Andreas F Thünemann
- Bundesanstalt für Materialforschung und -prüfung (BAM) , Unter den Eichen 87, 12205 Berlin, Germany
| | - Alfonso Lampen
- German Federal Institute for Risk Assessment , Department of Food Safety, Max-Dohrn-Straße 8-10, 10589 Berlin, Germany
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Ghoochani M, Shekoohiyan S, Yunesian M, Nazmara S, Mahvi AH. Determination of aluminum and zinc in infusion tea cultivated in north of Iran. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE AND ENGINEERING 2015; 13:49. [PMID: 26085934 PMCID: PMC4470039 DOI: 10.1186/s40201-015-0196-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Accepted: 05/04/2015] [Indexed: 12/07/2022]
Abstract
To determine aluminum and zinc levels in black tea cultivated in north of Iran, 105 black tea samples were collected from the tea growing regions of Guilan and Mazandaran provinces and were analyzed for Al and Zn concentration of tea infusion. Contents of all elements were analyzed three times separately by using an Inductively Coupled Plasma Atomic Emission Spectrometry (ICP - AES). The solubility of Al and Zn in infusions at 5, 15 and 60 min with boiling water showed that the mean level of Al in the third infusion was the highest (262.09 mg/kg) and in the first infusion was the lowest (169.40 mg/kg). The mean level of Zn in the third infusion was the highest (51.40 mg/kg) and in the second infusion was the lowest (48.33 mg/kg). The analysis of results also showed that the location factor influences the contents of these metals at different infusions.
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Affiliation(s)
- Mahboobeh Ghoochani
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Sakine Shekoohiyan
- Department of Environmental Health Engineering, School of Public Health, Hormozgan University of Medical Sciences, Bandar- Abbas, Iran
| | - Masoud Yunesian
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Shahrokh Nazmara
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Hossein Mahvi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran ; Center for Solid Waste Research, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran ; National Institute of Health Research, Tehran University of Medical Sciences, Tehran, Iran
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10
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Sato K, Suzuki I, Kubota H, Furusho N, Inoue T, Yasukouchi Y, Akiyama H. Estimation of daily aluminum intake in Japan based on food consumption inspection results: impact of food additives. Food Sci Nutr 2014; 2:389-97. [PMID: 25473496 PMCID: PMC4221837 DOI: 10.1002/fsn3.114] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Revised: 02/26/2014] [Accepted: 03/18/2014] [Indexed: 12/24/2022] Open
Abstract
Dietary aluminum (Al) intake by young children, children, youths, and adults in Japan was estimated using the market basket method. The Al content of food category (I-VII) samples for each age group was determined by inductively coupled plasma-atomic emission spectrometry (ICP-AES). The Al content in processed foods and unprocessed foods ranged from 0.40 to 21.7 mg/kg and from 0.32 to 0.54 mg/kg, respectively. For processed foods in all age groups, the Al content in food category VI samples, sugar and confections/savories, was the highest, followed by those in category II, cereals. The daily dietary Al intake from processed foods was much larger than that from unprocessed foods. The mean weekly percentages of the provisional tolerable weekly intake (PTWI, established by the joint FAO/WHO Expert Committee on Food Additives in 2011) from processed foods for all age groups are 43.1, 22.4, 17.6 and 15.1%, respectively. Only the highest consumer Al exposure value (>P 95) of the young children group exceeded the PTWI.
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Affiliation(s)
- Kyoko Sato
- Division of Food Additives, National Institute of Health Sciences1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - Ippei Suzuki
- Division of Food Additives, National Institute of Health Sciences1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - Hiroki Kubota
- Division of Food Additives, National Institute of Health Sciences1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - Noriko Furusho
- Division of Food Additives, National Institute of Health Sciences1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - Tomoyuki Inoue
- Japan Frozen Foods Inspection Kansai Office3-2-6 Minatojima, Minamimachi, Chuo-ku, Kobe, Hyogo, 650-0047, Japan
| | - Yoshikazu Yasukouchi
- Japan Frozen Foods Inspection Kansai Office3-2-6 Minatojima, Minamimachi, Chuo-ku, Kobe, Hyogo, 650-0047, Japan
| | - Hiroshi Akiyama
- Division of Food Additives, National Institute of Health Sciences1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
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11
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Aluminum enhances inflammation and decreases mucosal healing in experimental colitis in mice. Mucosal Immunol 2014; 7:589-601. [PMID: 24129165 PMCID: PMC3998638 DOI: 10.1038/mi.2013.78] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Revised: 08/12/2013] [Accepted: 08/14/2013] [Indexed: 02/04/2023]
Abstract
The increasing incidence of inflammatory bowel diseases (IBDs) in developing countries has highlighted the critical role of environmental pollutants as causative factors in their pathophysiology. Despite its ubiquity and immune toxicity, the impact of aluminum in the gut is not known. This study aimed to evaluate the effects of environmentally relevant intoxication with aluminum in murine models of colitis and to explore the underlying mechanisms. Oral administration of aluminum worsened intestinal inflammation in mice with 2,4,6-trinitrobenzene sulfonic acid- and dextran sodium sulfate-induced colitis and chronic colitis in interleukin 10-negative (IL10(-/-)) mice. Aluminum increased the intensity and duration of macroscopic and histologic inflammation, colonic myeloperoxidase activity, inflammatory cytokines expression, and decreased the epithelial cell renewal compared with control animals. Under basal conditions, aluminum impaired intestinal barrier function. In vitro, aluminum induced granuloma formation and synergized with lipopolysaccharide to stimulate inflammatory cytokines expression by epithelial cells. Deleterious effects of aluminum on intestinal inflammation and mucosal repair strongly suggest that aluminum might be an environmental IBD risk factor.
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Blaurock-Busch E, Busch YM, Friedle A, Buerner H, Parkash C, Kaur A. Comparing the metal concentration in the hair of cancer patients and healthy people living in the malwa region of punjab, India. Clin Med Insights Oncol 2014; 8:1-13. [PMID: 24453505 PMCID: PMC3891755 DOI: 10.4137/cmo.s13410] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2013] [Revised: 11/17/2013] [Accepted: 11/21/2013] [Indexed: 01/16/2023] Open
Abstract
The cancer prevalence in the Malwa region of Punjab (1089/million/year) is much higher than the national average cancer prevalence in India (800/million/year). The participants in the present study were 50 healthy individuals and 49 cancer patients all living in the Malwa region of Punjab, with the healthy people being selected from the same household as the cancer patients. High concentrations of several potentially toxic elements were found in hair samples from people living in Punjab. Compared to standard reference ranges, the metals in excess in both the control and patient groups were aluminium (Al), barium (Ba), manganese (Mn), strontium (Sr) and uranium (U). The most significant findings were high lead (Pb), U and Ba concentrations. The maximum values for Ba, Mn, Pb and U were found in hair from breast cancer patients. The mean concentration of U in hair from the breast cancer patients was 0.63 μg U/g, which is more than double the value found in the control group and over six times higher than the reference range of 0.1 μg U/g. Water, soil, and phosphate fertilizers all seem to play a potential role, causing an increased metal burden in Punjabi people living in the Malwa region. The present study indicates that metals, and especially U, may be a factor in the development of breast cancer among Punjabi women.
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Affiliation(s)
| | | | | | - Holger Buerner
- Trace Minerals International, Colorado, USA
- Micro Trace Minerals, Hersbruck, Germany
| | | | - Anudeep Kaur
- Punjab Technical University, Kapurthala, Punjab, India
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Bratakos SM, Lazou AE, Bratakos MS, Lazos ES. Aluminium in food and daily dietary intake estimate in Greece. FOOD ADDITIVES & CONTAMINANTS PART B-SURVEILLANCE 2012; 5:33-44. [DOI: 10.1080/19393210.2012.656289] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Abstract
Aluminium (Al) is clearly a powerful neurotoxicant. Considerable evidence exists that Al may play a role in the aetiology or pathogenesis of Alzheimer's disease (AD), but whether the link is causal is still open to debate. This paper reviews the epidemiological evidence linking Al and AD. Nine out of 13 published epidemiological studies of Al in drinking water and AD have shown statistically significant positive relations. Given the difficulty in producing high-quality data for the occurrence of AD and also for Al exposure, with the resulting unavoidable misclassification errors biasing any true association towards the null value, these studies are remarkably consistent. A major problem in their interpretation is that drinking water, even at high Al concentrations, only contributes a fraction of the total dietary intake of Al. In particular, regular consumers of antacids ingest gram amounts of Al daily, thousands of times the amounts taken in through drinking water, and epidemiological studies of antacid exposure and AD have been largely negative. However, Al is very poorly absorbed in the gastrointestinal tract, and the possibility that some Al fractions present in drinking water may be particularly bioavailable cannot be dismissed at present. The combined evidence linking Al and AD warrants substantial research efforts. Such efforts should focus on clarification of the cellular and molecular mechanisms in Al toxicity and of the basic metabolism and kinetics of Al in the human body, and on further epidemiological studies including diverse routes of Al exposure and also variables that are known or suspected to influence the individuals' susceptibility to AD, such as apolipoprotein E allele status and family history of AD.
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Affiliation(s)
- T P Flaten
- Department of Chemistry, Norwegian University of Science and Technology, Trondheim, Norway.
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Cefali EA, Nolan JC, McConnell WR, Walters DL. Pharmacokinetic study of zeolite A, sodium aluminosilicate, magnesium silicate, and aluminum hydroxide in dogs. Pharm Res 1995; 12:270-4. [PMID: 7784344 DOI: 10.1023/a:1016291228957] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Zeolite A is a synthetic zeolite which may have therapeutic utility in osteoporotic individuals because of its ability to stimulate bone formation. A study of Zeolite A (30 mg/kg), sodium aluminosilicate (16 mg/kg), magnesium trisilicate (20 mg/kg), and aluminum hydroxide (675 mg) was designed in beagle dogs. The purpose of this study was to compare the oral bioavailability of silicon and aluminum from Zeolite A, sodium aluminosilicate, magnesium trisilicate, and aluminum hydroxide in dogs. Twelve female dogs received each compound as a single dose separated by one week in a randomized, 4-way, crossover design. Plasma samples were drawn at time 0 and for 24 hours after dosing. The concentrations of silicon and aluminum were determined by graphite furnace atomic absorption. The mean plasma silicon AUC values (+/- S.D.) were 9.5 +/- 4.5, 7.7 +/- 1.6, 8.8 +/- 3.0, 6.1 +/- 1.9 mg.hr/L and the mean plasma silicon Cmax values (+/- S.D.) were 1.07 +/- 1.06, 0.67 +/- 0.27, 0.75 +/- 0.31, 0.44 +/- 0.17 mg/L for Zeolite A, sodium aluminosilicate, magnesium trisilicate, and aluminum hydroxide respectively. Although mean silicon AUC and Cmax values were elevated when compared to baseline after administration of the silicon containing compounds, only the AUC from Zeolite A reached statistical significance (p = 0.041). The mean plasma silicon Tmax values (+/- S.D.) were 7.9 +/- 6.4, 5.8 +/- 4.6, 6.9 +/- 6.3 and 8.5 +/- 3.4 hrs for Zeolite A, sodium aluminosilicate, magnesium trisilicate and aluminum Hydroxide respectively.(ABSTRACT TRUNCATED AT 250 WORDS)
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Hollósi M, Shen ZM, Perczel A, Fasman GD. Stable intrachain and interchain complexes of neurofilament peptides: a putative link between Al3+ and Alzheimer disease. Proc Natl Acad Sci U S A 1994; 91:4902-6. [PMID: 8197154 PMCID: PMC43897 DOI: 10.1073/pnas.91.11.4902] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The etiologic role of Al3+ in Alzheimer disease has been controversial. Circular dichroism (CD) spectroscopic studies on two synthetic fragments of human neurofilament protein mid-sized subunit (NF-M), NF-M13 (KSPVPKSPVEEKG) and NF-M17 (EEKGKSPVPKSPVEEKG), and their alanine-substituted and/or serine-phosphorylated derivatives were carried out in an attempt to find a molecular mechanism for the effect of Al3+ to induce aggregation of neuronal proteins or their catabolic fragments. Al3+ and Ca2+ ions were found to induce beta-pleated sheet formation in the phosphorylated fragments. The cation sensitivity depended on the length and charge distribution of the sequence and site of phosphorylation. Al3+-induced conformational changes were irreversible to citric acid chelation, whereas Ca(2+)-induced conformational changes were reversible with citric acid. Studies of the alanine derivatives demonstrated which residues affected Al3+ or Ca2+ binding. Peptides containing at least one free (nonphosphorylated) serine residue were shown to form an intramolecular Al3+ complex, rather than an intermolecular one. In the intramolecular (intrachain) complex, the ligand function of the deprotonated serine hydroxyl was delineated [(Al.pepH-1)-type complex]. Ca2+ ions did not show a tendency for intramolecular complexing. The potential role of Al3+ in Alzheimer disease tangle and plaque formation is strongly suggested.
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Affiliation(s)
- M Hollósi
- Department of Organic Chemistry, Eötvös University Budapest, Hungary
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