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Soleimani Z, Azimi P, Haghshenas R, Farzi Y, Taherkhani A, Naddafi K, Yunesian M, Naserinjad M, Behnoush AH, Parizad M, Keyvani M, Hajebi A, Gorgani F, Mirzaei S, Handy RD, Mesdaghinia A, Farzadfar F. Exposure assessment of metal(loids) in indoor air and biomonitoring in six urban residential areas in Iran. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174169. [PMID: 38917899 DOI: 10.1016/j.scitotenv.2024.174169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 05/21/2024] [Accepted: 06/19/2024] [Indexed: 06/27/2024]
Abstract
Exposure to metal(loid)s can cause adverse health effects. This study evaluated the concentrations of aluminum, arsenic, cadmium, chromium, mercury, nickel, and lead in particulate matter <10 μm (PM10) and in the urine of 100 participants from urban residential areas in Iran. A total of 100 residential buildings (one adult from each household) in six cities across Iran were recruited for this study. The levels of metal(loid)s in PM10 and the urine of participants were measured using acid digestion followed by inductively coupled plasma mass spectrometry (ICP-MS). The average (±SE) PM10 concentration in the buildings was 51.7 ± 3.46 μg/m3. Aluminum and cadmium had the highest and lowest concentrations among the metal(loid)s, averaging 3.74 ± 1.26 μg/m3 and 0.01 ± 0.001 μg/m3, respectively. In 85 % of the samples, the concentration of metal(loid)s in indoor air exceeded WHO air quality standards. Cadmium and lead had the highest and lowest numbers of indoor air samples exceeding the recommended standards, respectively. A significant correlation was found between the concentration of metal(loid)s in urine samples and indoor PM10 levels, as well as the wealth index of participants. There was also a significant direct relationship between the concentrations of nickel, arsenic, lead, and mercury in urine and the age of participants. Factors such as building location, type of cooling systems, use of printers at home, and natural ventilation influenced the concentration and types of metal(loid)s in the indoor air.
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Affiliation(s)
- Zahra Soleimani
- Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran; Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Parham Azimi
- Department of Environmental Health, T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Rosa Haghshenas
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Yosef Farzi
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Taherkhani
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences. Tehran, Iran
| | - Kazem Naddafi
- Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences. Tehran, Iran
| | - Masud Yunesian
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences. Tehran, Iran; Center for Water Quality Research, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Naserinjad
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Hossein Behnoush
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Marzeih Parizad
- Health and work environment group, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Keyvani
- Environmental Health Group, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirali Hajebi
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Gorgani
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Saham Mirzaei
- Institute of methodologies for Environmental Analysis, Italian National Research Council Potenza, Italy
| | - Richard D Handy
- School of Biological and Marine Sciences, Faculty of Science and Engineering, University of Plymouth, Drake Circus, Plymouth PL4 8AA, United Kingdom
| | - Alireza Mesdaghinia
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences. Tehran, Iran; Center for Water Quality Research, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran.
| | - Farshad Farzadfar
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran; Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
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Kunz SN, Bohrer D, do Nascimento PC, Cibin FWS, de Carvalho LM. Interference of Parenteral Nutrition Components in Silicon-Mediated Protection Against Aluminum Bioaccumulation. Biol Trace Elem Res 2024; 202:3662-3671. [PMID: 37924413 DOI: 10.1007/s12011-023-03929-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 10/22/2023] [Indexed: 11/06/2023]
Abstract
Aluminum and silicon are contaminants found in formulations used to prepare parenteral nutrition. Both elements are leached from glass containers, mainly during the heating cycle for sterilization. Insoluble and biologically inactive species of hydroxyaluminosilicates have been shown to form in solutions containing Al and Si. Therefore, this interaction may play an important role in protecting the body against Al toxicity. In this study, the bioavailability of Al in the presence of Si, calcium gluconate (Gluc.), and potassium phosphate (Phosf.) was investigated in rats. The rats were divided into 10 groups of 5 animals each: control, Al, Si, Al + Si, Gluc, Gluc + Al, Gluc + Al + Si, Phosf, Phosf + Al, and Phosf + Al + Si. The doses, consisting of 0.5 mg/kg/day Al and 2 mg/kg/day Si in the presence or absence of Gluc. or Phosf., were intraperitoneally administered for 3 months. Tissues were analyzed for Al and Si content. Al accumulated in the liver, kidneys, and bones, and the simultaneous administration of Si decreased Al accumulation in these tissues. The presence of Si reduced the amount of Al present by 72% in the liver, by 45% in the kidneys, and by 16% in bone. This effect was lees pronounced in the presence of parenteral nutrition compounds though. Si tissue accumulation was also observed, mainly when administered together with phosphate. These results suggest that Si may act as a protector against Al toxicity, by either reducing Al absorption or increasing its excretion, probably through hydroxyaluminosilicates formation. The presence of calcium gluconate and potassium phosphate decreases or inhibits this effect.
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Affiliation(s)
- Simone Noremberg Kunz
- Department of Chemistry, Postgraduate Program in Chemistry, Federal University of Santa Maria, Av. Roraima, Santa Maria, RS, 1000, 97105, 900, Brazil.
| | - Denise Bohrer
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Santa Maria, Santa Maria, Brazil
| | - Paulo Cícero do Nascimento
- Department of Chemistry, Postgraduate Program in Chemistry, Federal University of Santa Maria, Av. Roraima, Santa Maria, RS, 1000, 97105, 900, Brazil
| | | | - Leandro Machado de Carvalho
- Department of Chemistry, Postgraduate Program in Chemistry, Federal University of Santa Maria, Av. Roraima, Santa Maria, RS, 1000, 97105, 900, Brazil
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Guglielmi MV, Mastrodonato M, Semeraro D, Mentino D, Capriello T, La Pietra A, Giarra A, Scillitani G, Ferrandino I. Aluminum exposure alters the pedal mucous secretions of the chocolate-band snail, Eobania vermiculata (Gastropoda: Helicidae). Microsc Res Tech 2024; 87:1453-1466. [PMID: 38407429 DOI: 10.1002/jemt.24529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/09/2024] [Accepted: 02/10/2024] [Indexed: 02/27/2024]
Abstract
Aluminum (Al) is used in everyday life and present in food drugs, packaging, industry, and agriculture. Although it is the most common metal in the Earth crust, a correlation has been demonstrated between its presence and various pathologies, even serious ones, especially of a neurological type. However, there is a histological gap regarding the role Al can have in contact with the covering and secreting epithelia. The alterations of the ventral and dorsal foot mucocytes and their secretions of the snail Eobania vermiculata caused by Al were investigated in situ by histochemical and lectin-histochemical techniques. Administration to different experimental groups took place for 3 and 9 days with 50 and 200 μM of AlCl3. Several types of mucocytes were detected with a prevalent secretion of acid glycans in the foot of E. vermiculata. Sulfated glycans prevail in the dorsal region, with one type showing only fucosylated residues and another also having galactosaminylated and glycosaminylated residues. Carboxylated glycans prevail in the ventral region, with presence of galactosaminylated, glycosaminylated, and fucosylated residuals in both cells. Snails treated presented a general decrease of mucin amount in the secreting cells and affected the mucus composition. These changes could alter the rheological and functional properties of the mucus with possible implications for the health of the treated animals. RESEARCH HIGHLIGHTS: Snails were fed with Al-contaminated lettuce at different concentrations. In the foot mucocytes produced mucus with prevailing acidic glycans. In the treated resulted a reduction in the amount of mucus and an alteration of glycan composition.
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Affiliation(s)
- Marco Vito Guglielmi
- Department of Biosciences, Biotechnologies and Environment, University of Bari Aldo Moro, Bari, Italy
| | - Maria Mastrodonato
- Department of Biosciences, Biotechnologies and Environment, University of Bari Aldo Moro, Bari, Italy
| | - Daniela Semeraro
- Department of Biosciences, Biotechnologies and Environment, University of Bari Aldo Moro, Bari, Italy
| | - Donatella Mentino
- Department of Biosciences, Biotechnologies and Environment, University of Bari Aldo Moro, Bari, Italy
| | - Teresa Capriello
- Department of Biology, University of Naples "Federico II", Naples, Italy
| | | | - Antonella Giarra
- Department of Chemical Sciences, University of Naples "Federico II", Naples, Italy
| | - Giovanni Scillitani
- Department of Biosciences, Biotechnologies and Environment, University of Bari Aldo Moro, Bari, Italy
| | - Ida Ferrandino
- Department of Biology, University of Naples "Federico II", Naples, Italy
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Soleimani Z, Haghshenas R, Farzi Y, Taherkhani A, Shokri Varniab Z, Naserinjad M, Abedinjad P, Salehyan S, Maeiyat A, Gorgani F, Mirzaei S, Abbasi-Kangevari M, Naddafi K, Yunesian M, Mesdaghina A, Farzadfar F. Reference values for metal(loid)s concentrations in the urine samples of healthy Iranian adults: Results from the first nationally representative human biomonitoring study. J Trace Elem Med Biol 2024; 84:127424. [PMID: 38507981 DOI: 10.1016/j.jtemb.2024.127424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/21/2024] [Accepted: 03/03/2024] [Indexed: 03/22/2024]
Abstract
BACKGROUND This study measured the concentrations of arsenic (As), aluminum (Al), cadmium (Cd), chromium (Cr), mercury (Hg), nickel (Ni), and lead (Pb) in the urine samples of the Iranian adult population. METHODS This nationally representative study was conducted on 490 participants in six provinces of Iran who were selected based on the clustering method. Participants included healthy Iranian adults aged above 25 years without a history of illness and non-smokers. Fasting urine sampling, body composition, and demographic measurements were performed for each participant. Urine samples were analyzed by acid digesting method using Inductively Coupled Plasma Mass Spectrometry (ICP-MS). The analysis included descriptive statistics and multiple linear regression using Python programming language. RESULTS The geometrical mean (with corresponding reference values, µg/l) concentrations of metal(loid)s in urine for women, men, and both were 198.2 (625.3), 163.5 (486.1), and 192.5(570.4) for Al, 15.6(51.7), 28.8(71.1), and 21.9 (61.64) for As, 18.5(55.2), 20.7(56.5), and 19.22(55.75) for Pb, 17.9(57.6), 17.9 (53.9), and 17.9(56) for Ni, 13.95(47.5), 20.3(62.2) and 16(51.6) for Cr, 3.5(12.2), 2.9(11.5), and 3.3(12) for Hg, 0.74(2.7), 0.95 (3.6), and 0.81(3.1) for Cd. There was a direct relationship between the concentration of metal(loid)s and demographic indicators and body composition (P<0.05). Moreover, there was a direct relationship between the concentration of As, Cr, Hg, Ni, and Pb with age and wealth index (P<0.05). CONCLUSIONS The concentrations found could be used as the reference range for As, Al, Cd, Cr, Hg, Ni, and Pb for human biomonitoring studies on the Iranian adult population.
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Affiliation(s)
- Zahra Soleimani
- Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran; Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Rosa Haghshenas
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Yousef Farzi
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Taherkhani
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Shokri Varniab
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Naserinjad
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Parnian Abedinjad
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Samet Salehyan
- Health and Work Environment Group, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Abdullah Maeiyat
- Environmental Health Group, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Fatemeh Gorgani
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Saham Mirzaei
- Institute of methodologies for Environmetal Analysis, Italian National Research Council, 85050 Potenza, Italy
| | - Mohsen Abbasi-Kangevari
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Kazem Naddafi
- Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Masud Yunesian
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Department of Research Methodology and Data Analysis, Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Mesdaghina
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
| | - Farshad Farzadfar
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
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de Paiva EL, Ali S, Vasco ER, Alvito PC, de Oliveira CAF. Bioaccessibility data of potentially toxic elements in complementary foods for infants: A review. Food Res Int 2023; 174:113485. [PMID: 37986492 DOI: 10.1016/j.foodres.2023.113485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 11/22/2023]
Abstract
The introduction of complementary foods (CFs) is a critical step in an infant's transition to solid foods, providing essential nutrients beyond breast milk. However, CFs may contain potentially toxic elements (PTEs), such as arsenic and cadmium that pose health risks to infants. In this context, understanding the bioaccessibility of PTEs is vital as it determines the fraction of a contaminant released from the food matrix and available for absorption in the gastrointestinal tract. Efforts have been made to standardize the assessment methodology for bioaccessibility, ensuring consistent and reliable data. Moreover, regulatory agencies have established guidelines for PTEs levels in food. However, important gaps still exist, which motivates many research opportunities on this topic.
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Affiliation(s)
- Esther Lima de Paiva
- Faculty of Animal Science and Food Engineering - University of São Paulo (FZEA/USP), Rua Duque de Caxias, 13635-900 Pirassununga, SP, Brazil.
| | - Sher Ali
- Faculty of Animal Science and Food Engineering - University of São Paulo (FZEA/USP), Rua Duque de Caxias, 13635-900 Pirassununga, SP, Brazil
| | - Elsa Reis Vasco
- National Institute of Health Doutor Ricardo Jorge, Avenida Padre Cruz, 1649-016 Lisboa, Portugal
| | - Paula Cristina Alvito
- National Institute of Health Doutor Ricardo Jorge, Avenida Padre Cruz, 1649-016 Lisboa, Portugal
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Pan I, Umapathy S, Issac PK, Rahman MM, Guru A, Arockiaraj J. The bioaccessibility of adsorped heavy metals on biofilm-coated microplastics and their implication for the progression of neurodegenerative diseases. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1264. [PMID: 37782357 DOI: 10.1007/s10661-023-11890-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 09/16/2023] [Indexed: 10/03/2023]
Abstract
Microplastic (MP) tiny fragments (< 5 mm) of conventional and specialized industrial polymers are persistent and ubiquitous in both aquatic and terrestrial ecosystem. Breathing, ingestion, consumption of food stuffs, potable water, and skin are possible routes of MP exposure that pose potential human health risk. Various microorganisms including bacteria, cyanobacteria, and microalgae rapidly colonized on MP surfaces which initiate biofilm formation. It gradually changed the MP surface chemistry and polymer properties that attract environmental metals. Physicochemical and environmental parameters like polymer type, dissolved organic matter (DOM), pH, salinity, ion concentrations, and microbial community compositions regulate metal adsorption on MP biofilm surface. A set of highly conserved proteins tightly regulates metal uptake, subcellular distribution, storage, and transport to maintain cellular homeostasis. Exposure of metal-MP biofilm can disrupt that cellular homeostasis to induce toxicities. Imbalances in metal concentrations therefore led to neuronal network dysfunction, ROS, mitochondrial damage in diseases like Alzheimer's disease (AD), Parkinson's disease (PD), and Prion disorder. This review focuses on the biofilm development on MP surfaces, factors controlling the growth of MP biofilm which triggered metal accumulation to induce neurotoxicological consequences in human body and stategies to reestablish the homeostasis. Thus, the present study gives a new approach on the health risks of heavy metals associated with MP biofilm in which biofilms trigger metal accumulation and MPs serve as a vector for those accumulated metals causing metal dysbiosis in human body.
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Affiliation(s)
- Ieshita Pan
- Institute of Biotechnology, Department of Medical Biotechnology and Integrative Physiology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 602105, Tamil Nadu, India.
| | - Suganiya Umapathy
- Institute of Biotechnology, Department of Medical Biotechnology and Integrative Physiology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 602105, Tamil Nadu, India
| | - Praveen Kumar Issac
- Institute of Biotechnology, Department of Medical Biotechnology and Integrative Physiology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 602105, Tamil Nadu, India
| | - Md Mostafizur Rahman
- Laboratory of Environmental Health and Ecotoxicology, Department of Environmental Sciences, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh
- Department of Environmental Sciences, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh
| | - Ajay Guru
- Department of Cariology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India.
| | - Jesu Arockiaraj
- Toxicology and Pharmacology Laboratory, Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Kattankulathur 603203, Chengalpattu District, Tamil Nadu, India.
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Bianchi AR, La Pietra A, Guerretti V, De Maio A, Capriello T, Ferrandino I. Synthesis and Degradation of Poly(ADP-ribose) in Zebrafish Brain Exposed to Aluminum. Int J Mol Sci 2023; 24:ijms24108766. [PMID: 37240112 DOI: 10.3390/ijms24108766] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/02/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023] Open
Abstract
Poly(ADPribosyl)ation is a post-translational protein modification, catalyzed by poly(ADP-ribose) polymerase (PARPs) enzymes, responsible for ADP-ribose polymer synthesis (PAR) from NAD+. PAR turnover is assured by poly(ADPR) glycohydrolase (PARGs) enzymes. In our previous study, the altered histology of zebrafish brain tissue, resulting in demyelination and neurodegeneration also with poly(ADPribosyl)ation hyperactivation, was demonstrated after aluminum (Al) exposure for 10 and 15 days. On the basis of this evidence, the aim of the present research was to study the synthesis and degradation of poly(ADP-ribose) in the brain of adult zebrafish exposed to 11 mg/L of Al for 10, 15, and 20 days. For this reason, PARP and PARG expression analyses were carried out, and ADPR polymers were synthesized and digested. The data showed the presence of different PARP isoforms, among which a human PARP1 counterpart was also expressed. Moreover, the highest PARP and PARG activity levels, responsible for the PAR production and its degradation, respectively, were measured after 10 and 15 days of exposure. We suppose that PARP activation is related to DNA damage induced by Al, while PARG activation is needed to avoid PAR accumulation, which is known to inhibit PARP and promote parthanatos. On the contrary, PARP activity decrease at longer exposure times suggests that neuronal cells could adopt the stratagem of reducing polymer synthesis to avoid energy expenditure and allow cell survival.
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Affiliation(s)
- Anna Rita Bianchi
- Department of Biology, University of Naples Federico II, Via Cinthia 21, 80126 Naples, Italy
| | - Alessandra La Pietra
- Department of Biology, University of Naples Federico II, Via Cinthia 21, 80126 Naples, Italy
| | - Valeria Guerretti
- Department of Biology, University of Naples Federico II, Via Cinthia 21, 80126 Naples, Italy
| | - Anna De Maio
- Department of Biology, University of Naples Federico II, Via Cinthia 21, 80126 Naples, Italy
| | - Teresa Capriello
- Department of Biology, University of Naples Federico II, Via Cinthia 21, 80126 Naples, Italy
| | - Ida Ferrandino
- Department of Biology, University of Naples Federico II, Via Cinthia 21, 80126 Naples, Italy
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Bryliński Ł, Kostelecka K, Woliński F, Duda P, Góra J, Granat M, Flieger J, Teresiński G, Buszewicz G, Sitarz R, Baj J. Aluminium in the Human Brain: Routes of Penetration, Toxicity, and Resulting Complications. Int J Mol Sci 2023; 24:ijms24087228. [PMID: 37108392 PMCID: PMC10139039 DOI: 10.3390/ijms24087228] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/31/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
Aluminium (Al) is the most ubiquitous metal in the Earth's crust. Even though its toxicity is well-documented, the role of Al in the pathogenesis of several neurological diseases remains debatable. To establish the basic framework for future studies, we review literature reports on Al toxicokinetics and its role in Alzheimer's disease (AD), autism spectrum disorder (ASD), alcohol use disorder (AUD), multiple sclerosis (MS), Parkinson's disease (PD), and dialysis encephalopathy (DE) from 1976 to 2022. Despite poor absorption via mucosa, the biggest amount of Al comes with food, drinking water, and inhalation. Vaccines introduce negligible amounts of Al, while the data on skin absorption (which might be linked with carcinogenesis) is limited and requires further investigation. In the above-mentioned diseases, the literature shows excessive Al accumulation in the central nervous system (AD, AUD, MS, PD, DE) and epidemiological links between greater Al exposition and their increased prevalence (AD, PD, DE). Moreover, the literature suggests that Al has the potential as a marker of disease (AD, PD) and beneficial results of Al chelator use (such as cognitive improvement in AD, AUD, MS, and DE cases).
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Affiliation(s)
- Łukasz Bryliński
- Student Scientific Group, Department of Forensic Medicine, Medical University of Lublin, ul. Jaczewskiego 8b, 20-090 Lublin, Poland
| | - Katarzyna Kostelecka
- Student Scientific Group, Department of Forensic Medicine, Medical University of Lublin, ul. Jaczewskiego 8b, 20-090 Lublin, Poland
| | - Filip Woliński
- Student Scientific Group, Department of Anatomy, Medical University of Lublin, ul. Jaczewskiego 4, 20-090 Lublin, Poland
| | - Piotr Duda
- Student Scientific Group, Department of Forensic Medicine, Medical University of Lublin, ul. Jaczewskiego 8b, 20-090 Lublin, Poland
| | - Joanna Góra
- Student Scientific Group, Department of Forensic Medicine, Medical University of Lublin, ul. Jaczewskiego 8b, 20-090 Lublin, Poland
| | - Michał Granat
- Student Scientific Group, Department of Forensic Medicine, Medical University of Lublin, ul. Jaczewskiego 8b, 20-090 Lublin, Poland
| | - Jolanta Flieger
- Department of Analytical Chemistry, Medical University of Lublin, Chodźki 4A, 20-093 Lublin, Poland
| | - Grzegorz Teresiński
- Department of Forensic Medicine, Medical University of Lublin, Jaczewskiego 8b, 20-090, Lublin, Poland
| | - Grzegorz Buszewicz
- Department of Forensic Medicine, Medical University of Lublin, Jaczewskiego 8b, 20-090, Lublin, Poland
| | - Ryszard Sitarz
- I Department of Psychiatry, Psychotherapy and Early Intervention, Medical University of Lublin, 20-059 Lublin, Poland
| | - Jacek Baj
- Department of Anatomy, Medical University of Lublin, ul. Jaczewskiego 4, 20-090 Lublin, Poland
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9
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Capriello T, Di Meglio G, De Maio A, Scudiero R, Bianchi AR, Trifuoggi M, Toscanesi M, Giarra A, Ferrandino I. Aluminium exposure leads to neurodegeneration and alters the expression of marker genes involved to parkinsonism in zebrafish brain. CHEMOSPHERE 2022; 307:135752. [PMID: 35863414 DOI: 10.1016/j.chemosphere.2022.135752] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 07/11/2022] [Accepted: 07/14/2022] [Indexed: 06/15/2023]
Abstract
Aluminium, despite being extremely widespread in the world, is a non-essential metal to human metabolism. This metal is known to have toxic effects on a variety of organs including the brain and is considered an etiological factor in neurodegenerative diseases. However, the molecular mechanisms by which aluminium exerts neurotoxic effects are not yet completely understood. Zebrafish is an animal model also used to study neurodegenerative diseases since the overall anatomical organization of the central nervous system is relatively conserved and similar to mammals. Adult zebrafish were exposed to 11 mg/L of Al for 10, 15, and 20 days and the neurotoxic effects of aluminium were analysed by histological, biochemical, and molecular evaluations. Histological stainings allowed to evaluation of the morphology of the brain parenchyma, the alteration of myelin and the activation of neurodegenerative processes. The expression of the Glial Fibrillary Acidic Protein, a marker of glial cells, was evaluated to observe the quantitative alteration of this important protein for the nervous system. In addition, the poly(ADP-ribose) polymerase activity was measured to verify a possible oxidative DNA damage caused by exposure to this metal. Finally, the evaluation of the markers involved in Parkinsonism was assessed by Real-Time PCR to better understand the role of aluminium in the regulation of genes related to Parkinson's neurodegenerative disease. Data showed that aluminium significantly affected the histology of cerebral tissue especially in the first periods of exposure, 10 and 15 days. This trend was also followed by the expression of GFAP. At longer exposure times, there was an improvement/stabilization of the overall neurological conditions and decrease in PARP activity. In addition, aluminium is involved in the deregulation of the expression of genes closely related to Parkinsonism. Overall, the data confirm the neurotoxicity induced by aluminium and shed a light on its involvement in neurodegenerative processes.
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Affiliation(s)
- Teresa Capriello
- Department of Biology, University of Naples "Federico II", Naples, Italy.
| | - Gianluca Di Meglio
- Department of Biology, University of Naples "Federico II", Naples, Italy.
| | - Anna De Maio
- Department of Biology, University of Naples "Federico II", Naples, Italy.
| | - Rosaria Scudiero
- Department of Biology, University of Naples "Federico II", Naples, Italy.
| | - Anna Rita Bianchi
- Department of Biology, University of Naples "Federico II", Naples, Italy.
| | - Marco Trifuoggi
- Department of Chemical Sciences, University of Naples "Federico II", Naples, Italy.
| | - Maria Toscanesi
- Department of Chemical Sciences, University of Naples "Federico II", Naples, Italy.
| | - Antonella Giarra
- Department of Chemical Sciences, University of Naples "Federico II", Naples, Italy.
| | - Ida Ferrandino
- Department of Biology, University of Naples "Federico II", Naples, Italy.
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10
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Rempelos L, Wang J, Barański M, Watson A, Volakakis N, Hadall C, Hasanaliyeva G, Chatzidimitriou E, Magistrali A, Davis H, Vigar V, Średnicka-Tober D, Rushton S, Rosnes KS, Iversen PO, Seal CJ, Leifert C. Diet, but not food type, significantly affects micronutrient and toxic metal profiles in urine and/or plasma; a randomized, controlled intervention trial. Am J Clin Nutr 2022; 116:1278-1290. [PMID: 36041176 PMCID: PMC9630859 DOI: 10.1093/ajcn/nqac233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 08/20/2022] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Observational studies have linked Mediterranean Diets (MedDiet) and organic food consumption with positive health outcomes, which may be explained by higher mineral micronutrient and phenolic intake and lower dietary exposure to toxic compounds. OBJECTIVES To determine the effects of diet and food type (organic versus conventional) on urinary excretion (UE) and/or plasma concentrations of mineral micronutrients, phenolics and toxic metals. METHODS Healthy, adult participants were randomly allocated to a conventional (n=14) or an intervention (n=13) group. During a two-week period, the intervention group consumed a MedDiet made entirely from organic foods, while the conventional group consumed a MedDiet made from conventional foods. Before and after the intervention period, both groups consumed their habitual Western diets made from conventional foods. The primary outcome was UE and/or plasma concentrations of selected mineral micronutrients, toxic metals and phenolic markers. In addition, we monitored diets using food diaries. The participants were aware of study group assignment, but the study assessors were not. RESULTS Changing from a Western to a MedDiet for two weeks resulted in significant increases in UE of total phenolics and salicylic acid (by 46 and 45% respectively), the mineral micronutrients Co, I, and Mn (by 211, 70 and 102% respectively) and the toxic metal Ni (by 42%), and plasma Se concentrations (by 14%). However, no significant effects of food type (organic versus conventional) were detected. Redundancy analysis identified vegetables, coffee, wine and fruit as positive drivers for UE of phenolic markers and mineral micronutrients, and fish consumption as a positive driver for UE of Cd and Pb. CONCLUSIONS Although small effects of food type cannot be ruled out, our study suggests that only changing to a MedDiet with higher fruit and vegetable, and lower meat consumption results in a large increase in phenolic and mineral micronutrient intake.
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Affiliation(s)
| | - Juan Wang
- School of Agriculture, Food and Rural Development, Nafferton Ecological Farming Group, Newcastle University, Newcastle upon Tyne, United Kingdom,Human Nutrition Research Centre, Population and Health Sciences Institute, Newcastle University, Newcastle upon Tyne, United Kingdom,School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Marcin Barański
- School of Agriculture, Food and Rural Development, Nafferton Ecological Farming Group, Newcastle University, Newcastle upon Tyne, United Kingdom,Laboratory of Neurobiology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Anthony Watson
- Human Nutrition Research Centre, Population and Health Sciences Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
| | | | - Catherine Hadall
- Royal Victoria Infirmary, Newcastle upon Tyne Hospitals, Newcastle upon Tyne, United Kingdom
| | - Gultakin Hasanaliyeva
- School of Agriculture, Food and Rural Development, Nafferton Ecological Farming Group, Newcastle University, Newcastle upon Tyne, United Kingdom,Department of Sustainable Crop and Food Protection, Faculty of Agriculture, Food and Environmental Sciences, Catholic University of the Sacred Heart, Piacenza, Italy
| | - Eleni Chatzidimitriou
- School of Agriculture, Food and Rural Development, Nafferton Ecological Farming Group, Newcastle University, Newcastle upon Tyne, United Kingdom,French Agency for Food, Environmental, and Occupational Health and Safety (ANSES), Maisons-Alfort, France
| | - Amelia Magistrali
- School of Agriculture, Food and Rural Development, Nafferton Ecological Farming Group, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Hannah Davis
- School of Agriculture, Food and Rural Development, Nafferton Ecological Farming Group, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Vanessa Vigar
- National Centre for Naturopathic Medicine, Southern Cross University, Lismore, New South Wales, Australia
| | | | - Steven Rushton
- Modelling Evidence and Policy Group, School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Kristin S Rosnes
- Department of Nutrition, Institute of Medical Biology, University of Oslo, Oslo, Norway
| | - Per O Iversen
- Department of Nutrition, Institute of Medical Biology, University of Oslo, Oslo, Norway,Department of Haematology, Oslo University Hospital, Oslo, Norway
| | - Chris J Seal
- Human Nutrition Research Centre, Population and Health Sciences Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
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11
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Gatti AM, Ristic M, Stanzani S, Lavezzi AM. Novel chemical-physical autopsy investigation in Sudden Infant Death and Sudden Intrauterine Unexplained Death Syndromes. Nanomedicine (Lond) 2022; 17:275-288. [PMID: 35133189 DOI: 10.2217/nnm-2021-0203] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: Verify the presence of inorganic nanoparticle entities in brain tissue samples from Sudden Infant Death Syndrome (SIDS)/Sudden Intrauterine Unexplained Death Syndrome (SIUDS) cases. The presence of inorganic debris could be a cofactor that compromises proper brain tissue functionality. Materials & methods: A novel autopsy approach that consists of neuropathological analysis procedures combined with energy dispersive spectroscopy/field emission gun environmental scanning electron microscopy investigations was implemented on 10 SIDS/SIUDS cases, whereas control samples were obtained from 10 cases of fetal/infant death from known cause. Results: Developmental abnormalities of the brain were associated with the presence of foreign bodies. Although nanoparticles were present as well in control samples, they were not associated with histological brain anomalies, as was the case in SIDS/SIUDS. Conclusion: Inorganic particles present in brain tissues demonstrate their ability to cross the hemato-encephalic barrier and to interact with tissues and cells in an unknown yet pathological fashion. This gives a rationale to consider them as co-factors of lethality.
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Affiliation(s)
| | | | | | - Anna M Lavezzi
- "Lino Rossi" Research Center for The Study & prevention of unexpected perinatal death & SIDS Department of Biomedical, Surgical & Dental Sciences, University of Milan, Italy
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12
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Rebellato AP, Silva JGS, de Paiva EL, Arisseto-Bragotto AP, Pallone JAL. Aluminium in infant foods: toxicology, total content and bioaccessibility. Curr Opin Food Sci 2021. [DOI: 10.1016/j.cofs.2021.03.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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13
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14
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Dales JP, Desplat-Jégo S. Metal Imbalance in Neurodegenerative Diseases with a Specific Concern to the Brain of Multiple Sclerosis Patients. Int J Mol Sci 2020; 21:E9105. [PMID: 33266021 PMCID: PMC7730295 DOI: 10.3390/ijms21239105] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/29/2020] [Accepted: 11/19/2020] [Indexed: 12/16/2022] Open
Abstract
There is increasing evidence that deregulation of metals contributes to a vast range of neurodegenerative diseases including multiple sclerosis (MS). MS is a chronic inflammatory disease of the central nervous system (CNS) manifesting disability and neurological symptoms. The precise origin of MS is unknown, but the disease is characterized by focal inflammatory lesions in the CNS associated with an autoimmune reaction against myelin. The treatment of this disease has mainly been based on the prescription of immunosuppressive and immune-modulating agents. However, the rate of progressive disability and early mortality is still worrisome. Metals may represent new diagnostic and predictive markers of severity and disability as well as innovative candidate drug targets for future therapies. In this review, we describe the recent advances in our understanding on the role of metals in brain disorders of neurodegenerative diseases and MS patients.
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Affiliation(s)
- Jean-Philippe Dales
- Institute of Neurophysiopathology, CNRS, INP, Aix-Marseille University, 13005 Marseille, France;
- Assistance Publique-Hôpitaux de Marseille, Hôpital Nord, Pavillon Etoile, Pôle de Biologie, Service d’anatomie-pathologie, CEDEX 20, 13915 Marseille, France
| | - Sophie Desplat-Jégo
- Institute of Neurophysiopathology, CNRS, INP, Aix-Marseille University, 13005 Marseille, France;
- Assistance Publique-Hôpitaux de Marseille, Hôpital de la Conception, Pôle de Biologie, Service d’Immunologie, 13005 Marseille, France
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15
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Smith A, Abir FZ, El Hafiane Y, Launay Y, Faugeron-Girard C, Gloaguen V, Devers T, Raynaud A, Moine C, Sainte-Laudy J, Latour T, Hausman JF, Guerriero G. Fractal structures and silica films formed by the Treignac water on inert and biological surfaces. NANOSCALE ADVANCES 2020; 2:3821-3828. [PMID: 36132781 PMCID: PMC9418104 DOI: 10.1039/d0na00377h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 07/07/2020] [Indexed: 06/16/2023]
Abstract
The Treignac water is a natural mineral water containing mainly orthosilicic acid. On inert substrates, it forms a silica film with fractal structures which cannot be reproduced in laboratory-reconstituted water. These structures form by condensation of orthosilicic acid monomers, following the Witten-Sander model of diffusion-limited aggregation. On biological surfaces, such as tomato leaves, the Treignac water forms a silica film with a different morphology and devoid of fractal structures. The filmogenic properties of this natural mineral water are here discussed in the context of crop protection, as the silica film can provide a barrier and a platform for the immobilization of elicitors of plant defense responses.
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Affiliation(s)
- Agnès Smith
- Institut de Recherche sur les Céramiques, CNRS UMR 7315, Université de Limoges, Centre Européen de la Céramique 12 rue Atlantis 87068 Limoges cedex France
| | - Fatima Zahra Abir
- Institut de Recherche sur les Céramiques, CNRS UMR 7315, Université de Limoges, Centre Européen de la Céramique 12 rue Atlantis 87068 Limoges cedex France
| | - Youssef El Hafiane
- Institut de Recherche sur les Céramiques, CNRS UMR 7315, Université de Limoges, Centre Européen de la Céramique 12 rue Atlantis 87068 Limoges cedex France
| | - Yann Launay
- Institut de Recherche sur les Céramiques, CNRS UMR 7315, Université de Limoges, Centre Européen de la Céramique 12 rue Atlantis 87068 Limoges cedex France
| | - Céline Faugeron-Girard
- Laboratoire Peirene, EA 7500, Université de Limoges 123 Avenue Albert Thomas 87060 Limoges cedex France
| | - Vincent Gloaguen
- Laboratoire Peirene, EA 7500, Université de Limoges 123 Avenue Albert Thomas 87060 Limoges cedex France
| | - Thierry Devers
- Interfaces, Confinement, Matériaux et Nanostructures, CNRS UMR 7374, IUT de Chartres, Université d'Orléans 1 bis rue de la Férollerie, CS 40059 45071 Orléans cedex France
| | - Anaïs Raynaud
- Covertis, Ester Technopole 1 avenue d'Ester 87069 Limoges Cedex France
| | - Charlotte Moine
- Covertis, Ester Technopole 1 avenue d'Ester 87069 Limoges Cedex France
| | - Jean Sainte-Laudy
- Société des eaux de Source de Treignac (SEST) Le Borzeix 19260 Treignac France
| | - Thibaud Latour
- IT for Innovative Services-Human Dynamics in Cognitive Environments, Luxembourg Institute of Science and Technology 5 avenue des Hauts-Fourneaux L-4362 Esch/Alzette Luxembourg
| | - Jean-Francois Hausman
- Environmental Research and Innovation Department, Luxembourg Institute of Science and Technology 5, rue Bommel, Z. A. E. Robert Steichen L-4940 Hautcharage Luxembourg
| | - Gea Guerriero
- Environmental Research and Innovation Department, Luxembourg Institute of Science and Technology 5, rue Bommel, Z. A. E. Robert Steichen L-4940 Hautcharage Luxembourg
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16
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Occurrence and determination of inorganic contaminants in baby food and infant formula. Curr Opin Food Sci 2019. [DOI: 10.1016/j.cofs.2019.05.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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17
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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: 147] [Impact Index Per Article: 29.4] [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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18
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Exley C, Guerriero G, Lopez X. Silicic acid: The omniscient molecule. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 665:432-437. [PMID: 30772574 DOI: 10.1016/j.scitotenv.2019.02.197] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 01/30/2019] [Accepted: 02/13/2019] [Indexed: 06/09/2023]
Abstract
We contend that silicic acid is a much under-valued molecule and specifically in the context of its role in establishing and maintaining life on Earth. Silicic acid can also be an ill-understood molecule with its chemistry all too often confused with that of either silicates or silica. Herein we (i) provide a working definition for silicic acid; (ii) identify its omnipresent role in biochemical evolution in excluding aluminium from biota and providing adventitious benefits through biological silicification and (iii) explain how the silicic acid cycle is intrinsic to climate change.
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Affiliation(s)
- Christopher Exley
- The Birchall Centre, Lennard-Jones Laboratories, Keele University, Staffordshire, United Kingdom.
| | - Gea Guerriero
- Environmental Research and Innovation Department, Luxembourg Institute of Science and Technology, Esch/Alzette, Luxembourg.
| | - Xabier Lopez
- Kimika Fakultatea, Euskal Herriko Unibertsitatea (UPV/EHU), and Donostia International Physics Center (DIPC), P.K. 1072, 20080 Donostia, Euskadi, Spain.
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19
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Mold M, Chmielecka A, Rodriguez MRR, Thom F, Linhart C, King A, Exley C. Aluminium in Brain Tissue in Multiple Sclerosis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15081777. [PMID: 30126209 PMCID: PMC6121957 DOI: 10.3390/ijerph15081777] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 08/07/2018] [Accepted: 08/15/2018] [Indexed: 12/26/2022]
Abstract
Multiple sclerosis (MS) is a devastating and debilitating neurodegenerative disease of unknown cause. A consensus suggests the involvement of both genetic and environmental factors of which the latter may involve human exposure to aluminium. There are no data on the content and distribution of aluminium in human brain tissue in MS. The aluminium content of brain tissue from 14 donors with a diagnosis of MS was determined by transversely heated graphite furnace atomic absorption spectrometry. The location of aluminium in the brain tissue of two donors was investigated by aluminium-specific fluorescence microscopy. The aluminium content of brain tissue in MS was universally high with many tissues bearing concentrations in excess of 10 μg/g dry wt. (10 ppm) and some exceeding 50 ppm. There were no statistically significant relationships between brain lobes, donor age or donor gender. Aluminium-specific fluorescence successfully identified aluminium in brain tissue in both intracellular and extracellular locations. The association of aluminium with corpora amylacea suggests a role for aluminium in neurodegeneration in MS.
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Affiliation(s)
- Matthew Mold
- The Birchall Centre, Lennard-Jones Laboratories, Keele University, Staffordshire ST5 5BG, UK.
| | - Agata Chmielecka
- Life Sciences, The Huxley Building, Keele University, Staffordshire ST5 5BG, UK.
| | | | - Femia Thom
- Life Sciences, The Huxley Building, Keele University, Staffordshire ST5 5BG, UK.
| | - Caroline Linhart
- Department of Medical Statistics, Informatics and Health Economics, Medical University of Innsbruck, A-6020 Innsbruck, Austria.
| | - Andrew King
- Department of Clinical Neuropathology, Kings College Hospital, London SE5 9RS, UK.
| | - Christopher Exley
- The Birchall Centre, Lennard-Jones Laboratories, Keele University, Staffordshire ST5 5BG, UK.
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20
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Interaction of Amyloid Aβ(9–16) Peptide Fragment with Metal Ions: CD, FT-IR, and Fluorescence Spectroscopic Studies. Int J Pept Res Ther 2018. [DOI: 10.1007/s10989-018-9738-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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