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Sahu MC, Upadhyay K, Gupta S, Chanania K, Pati S. DNA damage and ALAD polymorphism in high blood lead (Pb) levels of pregnant women attending a tertiary care teaching hospital. Eur J Obstet Gynecol Reprod Biol X 2024; 22:100300. [PMID: 38665325 PMCID: PMC11043820 DOI: 10.1016/j.eurox.2024.100300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 03/10/2024] [Accepted: 03/18/2024] [Indexed: 04/28/2024] Open
Abstract
Background Pregnant women are particularly vulnerable to lead toxicity due to increased absorption and decreased elimination of lead from their bodies. The δ-aminolevulinic acid dehydratase (ALAD) gene plays a crucial role in lead metabolism, and its polymorphisms have been implicated in modifying the susceptibility to lead toxicity. Methods A cross-sectional study was conducted involving 90 pregnant women and blood samples were collected to measure blood lead levels (BLL) and assessed DNA damage using the comet assay. ALAD polymorphisms were genotyped using PCR-RFLP analysis with MspI restriction enzyme. Statistical analysis, including chi-square tests, logistic regression, and correlation analysis, was performed to determine associations between ALAD polymorphisms, BLL, and DNA damage. Results From 90 pregnant women the participants, 16 had high BLL (≥5 μg/dL), while the remaining 74 had normal levels (<5 μg/dL). The ALAD 1-2 genotype was found to be significantly associated with high BLL (p < 0.001). Pregnant women with the ALAD 1-2 genotype exhibited higher levels of DNA damage compared to those with other genotypes (p < 0.001). Furthermore, a positive correlation was observed between the transfer of lead concentration from mother to infant and DNA damage severity (r = 0.511, p < 0.001). Conclusions The combination of comet assay and polymorphism analysis offers a comprehensive approach to understanding the impact of lead exposure during pregnancy. These findings underscore the urgent need for effective regulatory measures to reduce lead exposure in the environment and mitigate its adverse effects of lead on maternal and child health.
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Affiliation(s)
- Mahesh Chandra Sahu
- ICMR-Regional Medical Research Centre, Chandrasekharpur, Bhubaneswar 751023, Odisha, India
- ICMR-National Institute of Occupational Health, Meghaninagar, Ahmedabad 380016, Gujarat, India
| | - Kuldip Upadhyay
- ICMR-National Institute of Occupational Health, Meghaninagar, Ahmedabad 380016, Gujarat, India
| | - Shweta Gupta
- ICMR-National Institute of Occupational Health, Meghaninagar, Ahmedabad 380016, Gujarat, India
| | - Kabita Chanania
- Department of Gynaecology and Obstetrics, IMS and SUM hospital, Siksha ‘O′ Anusandhan University, Kalinga Nagar, Bhubaneswar 751003, Odisha, India
| | - Sanghamitra Pati
- ICMR-Regional Medical Research Centre, Chandrasekharpur, Bhubaneswar 751023, Odisha, India
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Osmani M, Gashi B, Elezaj IR, Tuna M. Assessment of heavy metal stress in the adaptation strategies of Tulipa luanica growing on serpentine soil through some biomarkers in comparison to Tulipa kosovarica. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2023; 58:718-725. [PMID: 37897250 DOI: 10.1080/03601234.2023.2274743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/30/2023]
Abstract
The aim of this study was to gain a better understanding of how Tulipa luanica adapts to growth in soil with higher concentrations of heavy metals and to assess potential toxic effects using various biomarkers, in comparison to Tulipa kosovarica, a typical serpentine species. For this purpose, we analyzed the concentrations of Al, Ca, Cd, Co, Cr, Cu, Fe, Mg, Mn, Ni, Pb, and Zn in the soil, as well as their accumulation in plants and their associated stress effects. The results indicate that, despite the presence of some metals in very high concentrations in the soil (Al, Fe, Mn, and Ni), they are translocated in minimal amounts within plant organs, particularly in T. luanica. Nearly all metals exhibited significantly higher concentrations in T. kosovarica when compared to T. luanica. Based on the analysis of biomarkers, it is apparent that T. luanica shows greater sensitivity to these conditions. This is evident through the decreased activity of δ-aminolevulinic acid dehydratase and levels of δ-aminolevulinic acid, malondialdehyde, and glutathione observed in T. luanica. It appears that T. luanica effectively restricts the absorption of metals in serpentine soils; however, it experiences oxidative stress induced by these metals, setting it apart from the more resilient T. kosovarica.
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Affiliation(s)
- Mirsade Osmani
- Laboratory of Biochemistry, Faculty of Food Technology, University of Mitrovica "Isa Boletini", Mitrovicë, Kosovo
| | - Bekim Gashi
- Department of Biology, Faculty of Mathematical and Natural Sciences, University of Prishtina "Hasan Prishtina", Prishtinë, Kosovo
| | - Isa R Elezaj
- Department of Biology, Faculty of Mathematical and Natural Sciences, University of Prishtina "Hasan Prishtina", Prishtinë, Kosovo
| | - Metin Tuna
- Department of Field Crops, Faculty of Agriculture, Namik Kemal University, Tekirdag, Turkey
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Oginawati K, Nathanael RJ, Chazanah N, Suharyanto, Prabandari D, Basuki MF, Oclandhi B, Santoso M, Febriana SA, Nugrahaningsih DA, Suhartini S, Prakoeswa CRS, Tanziha I. Occupational lead exposure health risk assessment and heme biosynthesis: A study on batik artisans in yogyakarta, Indonesia. Heliyon 2023; 9:e19994. [PMID: 37809710 PMCID: PMC10559681 DOI: 10.1016/j.heliyon.2023.e19994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 09/07/2023] [Accepted: 09/07/2023] [Indexed: 10/10/2023] Open
Abstract
This study aims to assess dermal and inhalation lead exposure levels among batik industry workers and evaluate noncarcinogenic and carcinogenic health risks associated with lead exposure. We investigate potential relationships between lead exposure (dermal average daily dose and inhalation exposure concentration) and the workers' blood hemoglobin levels (Hb), as well as their urinary ALA (u-ALA) concentrations. Additionally, we explore any possible associations between Hb and u-ALA levels among the workers and identify various factors influencing lead exposure levels. A total of 30 workers were recruited for the study. Interviews and exposure sampling were conducted to measure dermal and inhaled lead exposure. Sample analysis methods include XRF for exposure samples, spectrophotometry for u-ALA, and HiCN colorimetric for Hb. Carcinogenic and noncarcinogenic risk assessments, correlation analysis, as well as ANOVA for factors analysis, were performed. The average dermal exposure dose and inhalation exposure concentration of lead were 6.53 ± 3.2 ng/kg/day and 0.021 ± 0.015 μg/m3, respectively. Hazard Index (HI) values for all workers were below 1 (average: 0.372 ± 0.155), indicating no expected noncarcinogenic health effects due to lead exposure. The average Excess Lifetime Cancer Risk (ELCR) was (5.18 ± 3.84) × 10-8, significantly below acceptable limits. Correlation analysis revealed a significant negative correlation between Hb and u-ALA (r = -0.519, p = 0.058 for male workers and r = -0.531, p = 0.034 for female workers), supporting their use as lead exposure biomarkers. The factors analysis demonstrated a significant impact of working conditions on inhalation exposure (p = 0.018), with outdoor workers experiencing lower lead inhalation. This research provides crucial insights into potential dangers faced by batik workers due to lead exposure, emphasizing the importance of targeted interventions. The strong correlation between Hb and u-ALA indicates their combined effectiveness in detecting lead exposure, even at low levels. The study underscores the significance of outdoor work as a protective measure against inhaling heavy metals, such as lead, present in the air. The assessment of health risks associated with lead exposure in the batik industry lays the groundwork for informed decision-making and interventions to protect workers' well-being, particularly in informal sectors workplaces where health risks are often overlooked.
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Affiliation(s)
- Katharina Oginawati
- Environmental Engineering Department, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Indonesia
| | - Rinaldy J. Nathanael
- Environmental Engineering Department, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Indonesia
| | - Nurul Chazanah
- Environmental Engineering Department, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Indonesia
| | - Suharyanto
- Environmental Engineering Department, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Indonesia
| | - Dyah Prabandari
- Environmental Engineering Department, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Indonesia
| | - Meutia F. Basuki
- Environmental Engineering Department, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Indonesia
| | - Buggie Oclandhi
- Environmental Engineering Department, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Indonesia
| | - Muhayatun Santoso
- Nuclear Power Research Organization, National Research and Innovation Agency, Indonesia
| | - Sri Awalia Febriana
- Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Indonesia
| | | | - Sri Suhartini
- Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Indonesia
| | | | - Ikeu Tanziha
- Community Nutrition Department, Faculty of Human Ecology, Institut Pertanian Bogor, Indonesia
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Nam KH. AI-based protein models enhance the accuracy of experimentally determined protein crystal structures. Front Mol Biosci 2023; 10:1208810. [PMID: 37426417 PMCID: PMC10324573 DOI: 10.3389/fmolb.2023.1208810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 06/13/2023] [Indexed: 07/11/2023] Open
Affiliation(s)
- Ki Hyun Nam
- Department of Life Science, Pohang University of Science and Technology, Pohang, Republic of Korea
- POSTECH Biotech Center, Pohang University of Science and Technology, Pohang, Republic of Korea
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Bah HAF, Martinez VO, dos Santos NR, Gomes Junior EA, Costa DO, Pires EM, Santana JVA, Cerqueira FDS, Menezes-Filho JA. Determinants of Exposure to Potentially Toxic Metals in Pregnant Women of the DSAN-12M Cohort in the Recôncavo Baiano, Brazil. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2949. [PMID: 36833642 PMCID: PMC9959373 DOI: 10.3390/ijerph20042949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/04/2023] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
Exposure to potentially toxic metals (PTM) threatens maternal and child health. We investigated the determinants of exposure to lead (Pb), cadmium (Cd), arsenic (As), and manganese (Mn) in 163 pregnant women from the Recôncavo Baiano, Brazil, enrolled in the DSAN-12M cohort. We measured these metals in biological samples (blood, toenails, and hair) and the Pb dust loading rates (RtPb) at their homes by graphite furnace atomic absorption spectrophotometry (GFAAS). Questionnaires were applied to collect sociodemographic and general habits data. Only 2.91% (n = 4) of the pregnant women had As levels above the detection limit. Few participants had levels above the recommended reference values for blood Pb (5.1; 95% CI: 2.1-10.1%), and Mn in hair or toenails (4.3; 95% CI: 2.3-10.1%). On the other hand, 61.1 (95% CI: 52.4-69.3%) had elevated blood Cd levels. After binary logistic regression, low socioeconomic status, domestic waste burning, being a passive smoker, multiparity, and renovating the house significantly increased the chances of having high levels of Mn, Pb, and Cd. We detected a worrying situation related to exposure to Cd, showing the urgency of implementing human biomonitoring in the general population, especially in situations of social vulnerability.
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Affiliation(s)
- Homègnon A. Ferréol Bah
- Institute of Collective Health, Federal University of Bahia, Salvador 40110-040, Brazil
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
| | - Victor O. Martinez
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
| | - Nathália R. dos Santos
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
| | - Erival A. Gomes Junior
- Graduate Program in Food Science, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
| | - Daisy O. Costa
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
| | - Elis Macêdo Pires
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
| | - João V. Araújo Santana
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
| | - Filipe da Silva Cerqueira
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
| | - José A. Menezes-Filho
- Institute of Collective Health, Federal University of Bahia, Salvador 40110-040, Brazil
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
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Sadiku OO, Rodríguez-Seijo A. Metabolic and genetic derangement: a review of mechanisms involved in arsenic and lead toxicity and genotoxicity. Arh Hig Rada Toksikol 2022; 73:244-255. [PMID: 36607725 PMCID: PMC9985351 DOI: 10.2478/aiht-2022-73-3669] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/01/2022] [Accepted: 10/01/2022] [Indexed: 01/07/2023] Open
Abstract
Urbanisation and industrialisation are on the rise all over the world. Environmental contaminants such as potentially toxic elements (PTEs) are directly linked with both phenomena. Two PTEs that raise greatest concern are arsenic (As) and lead (Pb) as soil and drinking water contaminants, whether they are naturally occurring or the consequence of human activities. Both elements are potential carcinogens. This paper reviews the mechanisms by which As and Pb impair metabolic processes and cause genetic damage in humans. Despite efforts to ban or limit their use, due to high persistence both continue to pose a risk to human health, which justifies the need for further toxicological research.
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Affiliation(s)
- Olubusayo Olujimi Sadiku
- University of Lagos, College of Medicine, Faculty of Basic Medical Sciences, Department of Medical Laboratory Science, Lagos, Nigeria
| | - Andrés Rodríguez-Seijo
- University of Porto, Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Matosinhos, Portugal
- University of Porto, Faculty of Sciences, Biology Department, Porto, Portugal
- University of Vigo, Department of Plant Biology and Soil Sciences, Ourense, Spain
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7
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Santosa B, Rosidi A, Anggraini H, Latrobdiba ZM, Damayanti FN, Nugroho HSW. Mask Protection Against Lead Exposure and Its Correlation with Erythropoiesis in Automotive Body Painters at Ligu District, Semarang, Indonesia. J Blood Med 2022; 13:113-119. [PMID: 35264893 PMCID: PMC8901187 DOI: 10.2147/jbm.s335557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 02/17/2022] [Indexed: 01/02/2023] Open
Abstract
Introduction Automotive body painters are at risk of excessive lead exposure that may compromise their health. This study examined the protective effects of masks against lead exposure and its correlation with blood profile of automotive body painters at Ligu district, Semarang, Indonesia. Material and Methods This cross-sectional study included 61 painters at Ligu district, Semarang, Indonesia (mean age 45 years, 100% male). Mask use was categorized into “frequent” and “infrequent”. Blood samples were taken to measure lead exposure and haematological parameters (haemoglobin/HGB, erythrocytes/RBC, haematocrit/HCT, mean corpuscular haemoglobin/MCH, mean corpuscular volume/MCV, mean corpuscular haemoglobin concentration/MCHC). Effectivity of mask use against lead exposure was analysed with Fisher’s exact test, while lead exposure and haematopoietic parameters were evaluated with Pearson’s correlation tests. Results There were 26 automotive painters (42.6%) classified as unfrequent mask users, and all of them had high blood lead levels. Most haematopoiesis parameters were in normal range. Workers with infrequent mask use were 1.269 more likely to be exposed to lead compared to those with frequent mask use (CI 95%, 1.082–1.552). Significant associations were found between lead exposure and RBC (p=0.0, r=−0.53), HGB (p=0, r=−0.61), and HCT (p=0.00, r=−0.61). No significant correlations were observed between lead exposure and MCV, MCH, MCHC. Conclusion Lead exposure was significantly associated with haematological parameters RBC, HGB, and HCT, confirming the effects of prolonged exposure on blood profile. However, mask use provided significant protection against lead exposure in automotive body painters and should be an obligatory gear for workers.
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Affiliation(s)
- Budi Santosa
- Department of Medical Laboratory Science, Universitas Muhammadiyah Semarang, Semarang, Indonesia
- Correspondence: Budi Santosa, Department of Medical Laboratory Science, Universitas Muhammadiyah Semarang, Jl. Kedungmundu Raya 18, Semarang, 50273, Central Java, Indonesia Email
| | - Ali Rosidi
- Department of Nutrition, Faculty of Nursing and Health Science, Universitas Muhammadiyah Semarang, Semarang, Indonesia
| | - Herlisa Anggraini
- Department of Medical Laboratory Technology, Faculty of Nursing and Health Science, Universitas Muhammadiyah Semarang, Semarang, Indonesia
| | - Zahra Maharani Latrobdiba
- Department of Nutrition, Faculty of Nursing and Health Science, Universitas Muhammadiyah Semarang, Semarang, Indonesia
| | - Fitriani Nur Damayanti
- Department of Midwifery, Faculty of Nursing and Health Science, Universitas Muhammadiyah Semarang, Semarang, Indonesia
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8
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Bah HAF, Dos Anjos ALS, Gomes-Júnior EA, Bandeira MJ, de Carvalho CF, Dos Santos NR, Martinez VO, Adorno EV, Menezes-Filho JA. Delta-Aminolevulinic Acid Dehydratase, Low Blood Lead Levels, Social Factors, and Intellectual Function in an Afro-Brazilian Children Community. Biol Trace Elem Res 2022; 200:447-457. [PMID: 33723800 DOI: 10.1007/s12011-021-02656-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 02/23/2021] [Indexed: 01/17/2023]
Abstract
Delta-aminolevulinic acid dehydratase (ALAD) enzyme catalyzes the second phase of the heme biosynthesis and is involved in lead toxicokinetics. This research aimed to evaluate its influence on the relationship between blood lead (PbB) levels and intellectual performance in Afro-Brazilian children. PbB, hemoglobin concentration, ALAD activity, and polymorphism were determined in whole blood. Anthropometric, socioeconomic, and family environment stimuli data were collected with appropriate instruments. The non-verbal intelligence of children and their mothers or guardians was assessed using the correspondent Raven's Progressive Matrix versions. The medians (range) of PbB levels and ALAD activity were 1.0 μg/dL (0.1-21.3) and, 71 U/L (31-113), respectively. ALAD G177C was distributed as follows: 97.9% for ALAD1/1 and 2.1% for ALAD1/2 genotypes. The mean of Raven raw score was 19.3 (± 5.6) points and there were no differences according to sex or environmental Pb exposure. No statistically significant association was observed between PbB level and children's IQ. However, ALAD activity presented an inverse significant association with PbB levels, children's percentile IQ, and children's IQ/Age ratio, suggesting a neuroprotective role of ALAD1 genotype in those with low PbB level.
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Affiliation(s)
- Homegnon A F Bah
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Av. Barão de Jeremoabo, s/n, Ondina, Salvador, Bahia, 40170-115, Brazil
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Ana Laura S Dos Anjos
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Av. Barão de Jeremoabo, s/n, Ondina, Salvador, Bahia, 40170-115, Brazil
| | - Erival A Gomes-Júnior
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Av. Barão de Jeremoabo, s/n, Ondina, Salvador, Bahia, 40170-115, Brazil
- Graduate Program in Food Science, College of Pharmacy, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Matheus J Bandeira
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Av. Barão de Jeremoabo, s/n, Ondina, Salvador, Bahia, 40170-115, Brazil
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Chrissie F de Carvalho
- Department of Psychology, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Nathália R Dos Santos
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Av. Barão de Jeremoabo, s/n, Ondina, Salvador, Bahia, 40170-115, Brazil
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Victor O Martinez
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Elisângela V Adorno
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Salvador, Bahia, Brazil
| | - José A Menezes-Filho
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Av. Barão de Jeremoabo, s/n, Ondina, Salvador, Bahia, 40170-115, Brazil.
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Salvador, Bahia, Brazil.
- Graduate Program in Food Science, College of Pharmacy, Federal University of Bahia, Salvador, Bahia, Brazil.
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Farkhondeh T, Mansouri B, Binkowski LJ, Błaszczyk M, Pirsaheb M, Azadi NA, Słoboda M, Amirabadizadeh A, Javadmoosavi SY. Blood lead concentrations in children with iron deficiency anemia: a systematic review and meta-analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:3199-3212. [PMID: 34731423 DOI: 10.1007/s11356-021-17301-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 10/27/2021] [Indexed: 06/13/2023]
Abstract
Iron deficiency is the most common nutritional disorder detrimental to the behavior, cognitive performance, immune system, and physical growth of infants and preschool- and school-age children. Iron deficiency anemia (IDA) increases children's susceptibility to some metals, including the highly toxic lead (Pb), but the character of this relationship is still disputed. Thus, this study aimed to review and meta-analyze the association between the IDA and blood lead levels (BLL) among children, based on papers indexed by international scientific databases and published up to September 2021. A search was performed of the literature in several databases including the ISI Web of Science, PubMed, and Scopus. The final papers were assessed concerning their quality based on the Newcastle-Ottawa Scale (NOS) for cross-sectional studies. Moreover, analyses were performed using R statistical software with the "meta" package. Of the 1528 articles found, only 12 studies met the inclusion criteria and were considered in the meta-analysis. Significantly higher BLL in IDA children (SMD = 2.40; CI 95%, 0.93-3.87 µg/L; p = 0.0014) was seen when compared to non-IDA children. Moreover, the pooled OR is equal to 2.75 (CI 95%, 1.10-6.85 µg/L; p = 0.0303) suggesting a higher risk of IDA development among children with BLL > 10 µg/dL. Thus, we recommend systematic monitoring of Fe and Pb levels among children, especially in countries with limited sources of nutritious food. Since only a few studies were available for this meta-analysis, further studies are necessary to examine the association between IDA and BLL in detail.
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Affiliation(s)
- Tahere Farkhondeh
- Medical Toxicology and Drug Abuse Research Center (MTDRC), Birjand University of Medical Sciences, Birjand, Iran
| | - Borhan Mansouri
- The Substance Abuse Prevention Research Center, the Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Lukasz J Binkowski
- The Institute of Biology, the Pedagogical University of Krakow, Krakow, Poland
| | - Martyna Błaszczyk
- The Institute of Biology, the Pedagogical University of Krakow, Krakow, Poland
| | - Meghdad Pirsaheb
- The Research Center for Environmental Determinants of Health, the Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Nammam Ali Azadi
- The Biostatistics Department, the School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Maciej Słoboda
- The Department of Environmental Management and Protection, AGH University of Science and Technology, Krakow, Poland
| | - Alireza Amirabadizadeh
- Medical Toxicology and Drug Abuse Research Center (MTDRC), Birjand University of Medical Sciences, Birjand, Iran
| | - Seyed Yoosef Javadmoosavi
- Medical Toxicology and Drug Abuse Research Center (MTDRC), Birjand University of Medical Sciences, Birjand, Iran
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Forero-Rodríguez LJ, Josephs-Spaulding J, Flor S, Pinzón A, Kaleta C. Parkinson's Disease and the Metal-Microbiome-Gut-Brain Axis: A Systems Toxicology Approach. Antioxidants (Basel) 2021; 11:71. [PMID: 35052575 PMCID: PMC8773335 DOI: 10.3390/antiox11010071] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/02/2021] [Accepted: 12/17/2021] [Indexed: 12/14/2022] Open
Abstract
Parkinson's Disease (PD) is a neurodegenerative disease, leading to motor and non-motor complications. Autonomic alterations, including gastrointestinal symptoms, precede motor defects and act as early warning signs. Chronic exposure to dietary, environmental heavy metals impacts the gastrointestinal system and host-associated microbiome, eventually affecting the central nervous system. The correlation between dysbiosis and PD suggests a functional and bidirectional communication between the gut and the brain. The bioaccumulation of metals promotes stress mechanisms by increasing reactive oxygen species, likely altering the bidirectional gut-brain link. To better understand the differing molecular mechanisms underlying PD, integrative modeling approaches are necessary to connect multifactorial perturbations in this heterogeneous disorder. By exploring the effects of gut microbiota modulation on dietary heavy metal exposure in relation to PD onset, the modification of the host-associated microbiome to mitigate neurological stress may be a future treatment option against neurodegeneration through bioremediation. The progressive movement towards a systems toxicology framework for precision medicine can uncover molecular mechanisms underlying PD onset such as metal regulation and microbial community interactions by developing predictive models to better understand PD etiology to identify options for novel treatments and beyond. Several methodologies recently addressed the complexity of this interaction from different perspectives; however, to date, a comprehensive review of these approaches is still lacking. Therefore, our main aim through this manuscript is to fill this gap in the scientific literature by reviewing recently published papers to address the surrounding questions regarding the underlying molecular mechanisms between metals, microbiota, and the gut-brain-axis, as well as the regulation of this system to prevent neurodegeneration.
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Affiliation(s)
- Lady Johanna Forero-Rodríguez
- Research Group Bioinformatics and Systems Biology, Instituto de Genetica, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (L.J.F.-R.); (A.P.)
- Research Group Medical Systems Biology, Christian-Albrechts-Universität Kiel, Brunswiker Straße 10, 24105 Kiel, Germany; (S.F.); (C.K.)
| | - Jonathan Josephs-Spaulding
- Research Group Medical Systems Biology, Christian-Albrechts-Universität Kiel, Brunswiker Straße 10, 24105 Kiel, Germany; (S.F.); (C.K.)
| | - Stefano Flor
- Research Group Medical Systems Biology, Christian-Albrechts-Universität Kiel, Brunswiker Straße 10, 24105 Kiel, Germany; (S.F.); (C.K.)
| | - Andrés Pinzón
- Research Group Bioinformatics and Systems Biology, Instituto de Genetica, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (L.J.F.-R.); (A.P.)
| | - Christoph Kaleta
- Research Group Medical Systems Biology, Christian-Albrechts-Universität Kiel, Brunswiker Straße 10, 24105 Kiel, Germany; (S.F.); (C.K.)
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11
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Molecular Studies on the Nephroprotective Potential of Celastrus paniculatus against Lead-Acetate-Induced Nephrotoxicity in Experimental Rats: Role of the PI3K/AKT Signaling Pathway. Molecules 2021; 26:molecules26216647. [PMID: 34771053 PMCID: PMC8587739 DOI: 10.3390/molecules26216647] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 10/21/2021] [Accepted: 10/28/2021] [Indexed: 12/25/2022] Open
Abstract
Chemicals can induce nephrotoxicity, with damage to different segments of the nephron and deterioration of renal function. Nephrotoxicity due to exposure to a toxin such as carbon tetrachloride, sodium oxalate, or heavy metals is the most common cause of kidney injury. The current study aimed to evaluate the protective effects of Celastrus paniculatus seed extract against lead-acetate-induced nephrotoxicity by evaluating the histopathology, immunohistochemistry, ultrastructure, and phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT) signaling pathway. Twenty-four rats were divided into four groups (n = 6 per group): group 1 contained normal animals and served as the control; group 2 received lead acetate (30 mg/kg body weight (b.w.)/day, oral); group 3 received lead acetate and the standard drug N-acetylcysteine (NAC, 200 mg/kg b.w./day, oral); and group 4 received lead acetate and the ethanolic extract of C. paniculatus seed (EECP; 800 mg/kg b.w./day, oral). Treatment was given for 28 consecutive days. The data were analyzed using one-way analysis of variance with SIGMA PLOT 13 using SYSTAT software followed by Newman–Keul’s test for comparison between the groups. EECP ameliorated the adverse changes caused by lead acetate. PI3K and AKT messenger RNA (mRNA) levels were diminished in lead-acetate-treated rats. Treatment with EECP inhibited the occurrence of shrunken cells, the atrophy of glomeruli, and degenerative changes in renal tubules caused by lead acetate. Interestingly, the PI3K and AKT mRNA levels were significantly increased in EECP-treated animals. Our results clearly evidence for the first time that C. paniculatus seed extract inhibits lead-acetate-induced detrimental changes in kidneys by regulating PI3K/AKT signaling pathways.
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Deore MS, S K, Naqvi S, Kumar A, Flora SJS. Alpha-Lipoic Acid Protects Co-Exposure to Lead and Zinc Oxide Nanoparticles Induced Neuro, Immuno and Male Reproductive Toxicity in Rats. Front Pharmacol 2021; 12:626238. [PMID: 34305580 PMCID: PMC8296815 DOI: 10.3389/fphar.2021.626238] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 05/04/2021] [Indexed: 12/25/2022] Open
Abstract
We evaluated the neuro-, immuno-, and male reproductive toxicity of zinc oxide nanoparticles (ZnO NPs) alone and in combination with lead acetate. We also studied the therapeutic role of α-lipoic acid postexposure. Lead (10 mg/kg, body weight), ZnO NPs (100 mg/kg, bwt) alone, and their combination were administered orally in Wistar rats for 28 days, followed by the administration of α-lipoic acid (15 mg/kg, bwt) for the next 15 days. Our results demonstrated protective effects of α-lipoic acid on lead and ZnO NP-induced biochemical alterations in neurological, immunological, and male reproductive organs in rats. The altered levels of blood δ-aminolevulinic acid dehydratase (ALAD), immunoglobulins (IgA, IgG, IgM, and IgE), interleukins (IL-1β, IL-4, and IL-6), caspase-3, and tumor necrosis factor (TNF-α) were attenuated by lipoic acid treatment. Lead and ZnO NP-induced oxidative stress was decreased by lipoic acid treatment, while a moderate recovery in the normal histoarchitecture of the brain section (cortex and hippocampus) and testes further confirmed the neuro- and male reproductive toxicity of lead and ZnO NPs. We also observed a significant decrease in the blood metal content in the animals treated with lipoic acid compared to the lead-administered group, indicating the moderate chelating property of lipoic acid. It may thus be concluded that lipoic acid might be a promising protective agent against lead and ZnO NP-induced alterations in the neurological, immunological, and reproductive parameters.
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Affiliation(s)
| | | | | | | | - S. J. S. Flora
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER-R), Raebareli, India
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13
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Barbosa ED, Neto JXL, Teixeira DG, Bezerra KS, do Amaral VS, Oliveira JIN, Lima JPMS, Machado LD, Fulco UL. Exploring human porphobilinogen synthase metalloprotein by quantum biochemistry and evolutionary methods. Metallomics 2021; 13:6206860. [PMID: 33791795 DOI: 10.1093/mtomcs/mfab017] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 03/16/2021] [Accepted: 03/21/2021] [Indexed: 12/16/2022]
Abstract
Previous studies have shown the porphobilinogen synthase (PBGS) zinc-binding mechanism and its conservation among the living cells. However, the precise molecular interaction of zinc with the active center of the enzyme is unknown. In particular, quantum chemistry techniques within the density functional theory (DFT) framework have been the key methodology to describe metalloproteins, when one is looking for a compromise between accuracy and computational feasibility. Considering this, we used DFT-based models within the molecular fractionation with conjugate caps scheme to evaluate the binding energy features of zinc interacting with the human PBGS. Besides, phylogenetic and clustering analyses were successfully employed in extracting useful information from protein sequences to identify groups of conserved residues that build the ions-binding site. Our results also report a conservative assessment of the relevant amino acids, as well as the benchmark analysis of the calculation models used. The most relevant intermolecular interactions in Zn2+-PBGS are due to the amino acids CYS0122, CYS0124, CYS0132, ASP0169, SER0168, ARG0221, HIS0131, ASP0120, GLY0133, VAL0121, ARG0209, and ARG0174. Among these residues, we highlighted ASP0120, GLY0133, HIS0131, SER0168, and ARG0209 by co-occurring in all clusters generated by unsupervised clustering analysis. On the other hand, the triple cysteines at 2.5 Å from zinc (CYS0122, CYS0124, and CYS0132) have the highest energy attraction and are absent in the taxa Viridiplantae, Sar, Rhodophyta, and some Bacteria. Additionally, the performance of the DFT-based models shows that the processing time-dependence is more associated with the choice of the basis set than the exchange-correlation functional.
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Affiliation(s)
- E D Barbosa
- Departamento de Biofísica e Farmacologia, Universidade Federal do Rio Grande do Norte, 59072-970 Natal-RN, Brazil
| | - J X Lima Neto
- Departamento de Biofísica e Farmacologia, Universidade Federal do Rio Grande do Norte, 59072-970 Natal-RN, Brazil
| | - D G Teixeira
- Institute of Tropical Medicine, Universidade Federal do Rio Grande do Norte, 59072-970 Natal-RN, Brazil
| | - K S Bezerra
- Departamento de Biofísica e Farmacologia, Universidade Federal do Rio Grande do Norte, 59072-970 Natal-RN, Brazil
| | - V S do Amaral
- Departamento de Bioquímica, Universidade Federal do Rio Grande do Norte, 59072-970 Natal-RN, Brazil
| | - J I N Oliveira
- Departamento de Biofísica e Farmacologia, Universidade Federal do Rio Grande do Norte, 59072-970 Natal-RN, Brazil
| | - J P M Santos Lima
- Departamento de Bioquímica, Universidade Federal do Rio Grande do Norte, 59072-970 Natal-RN, Brazil
| | - L D Machado
- Departamento de Física Teórica e Experimental, Universidade Federal do Rio Grande do Norte, 59072-970 Natal-RN, Brazil
| | - U L Fulco
- Departamento de Biofísica e Farmacologia, Universidade Federal do Rio Grande do Norte, 59072-970 Natal-RN, Brazil
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Abdel Hamid OI, Khayal EESH, Tolba SAR, Orabi EE. Maternal Δ-aminolevulinic acid dehydratase 1-2 genotype enhances fetal lead exposure and increases the susceptibility to the development of cerebral palsy. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:44709-44723. [PMID: 32710353 DOI: 10.1007/s11356-020-10182-8] [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: 02/22/2020] [Accepted: 07/16/2020] [Indexed: 06/11/2023]
Abstract
Limited epidemiologic studies questioned the association between pre- and postnatal lead exposure and the development of cerebral palsy (CP). Moreover, the genotypes of δ-aminolevulinic acid dehydratase (δ-ALAD) in CP patients and their mothers and their association to the blood lead levels (BLLs) were not previously studied. This study aimed to evaluate the association between δ-ALAD gene polymorphism and BLL in cases of CP and their mothers. A case control study was carried out on 23 CP cases and equal number of healthy matched controls. The mothers of the included children were asked to answer a questionnaire involving the baseline clinical and demographic characteristics. Also, questionnaires were done to detect the sources of environmental lead exposure and screen lead exposure during the pregnancy period. BLL, δ-ALAD enzyme activity, and genetic analysis for ALAD G177C were done for each child and his mother. There was significant (p < 0.001) elevation of BLL in CP cases and their mothers that was positively correlated (r = 0.436, p < 0.05). There were progressive decreases in δ-ALAD activity with increasing BLL in both children and mothers (p < 0.05). There were non-significant (p > 0.05) differences between CP and the control group regarding frequency of ALAD G177C genotypes, while there was a significant (p = 0.04) increase in the frequency of ALAD 1-2 (GC) genotype in the mothers of the CP group associated with high BLL and significant decrease in δ-ALAD activity (p < 0.001). The study can indicate the significance of δ-ALAD gene polymorphism in the prenatal exposure to lead and the affection of the developing brain, pointing to the importance of controlling lead in pregnant women especially those with ALAD 1-2 genotype.
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Affiliation(s)
- Omaima Ibrahim Abdel Hamid
- Forensic Medicine & Clinical Toxicology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
| | | | | | - Eman Elshahat Orabi
- Public Health & Community Medicine Departments, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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15
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Mukisa A, Kasozi D, Aguttu C, Vuzi PC, Kyambadde J. Relationship between blood Lead status and anemia in Ugandan children with malaria infection. BMC Pediatr 2020; 20:521. [PMID: 33189139 PMCID: PMC7666473 DOI: 10.1186/s12887-020-02412-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 10/31/2020] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND In Uganda, childhood anemia remains a health challenge and is associated with malaria infection as well as iron deficiency. Iron deficiency is intertwined with nutritional status, age and other comorbidities including helminths and Lead toxicity. Environmental Lead levels accounts for one's blood Lead (BL) levels. Blood Lead competitively blocks iron absorption, inhibits hemoglobin (Hb) biosynthesis and elevates free erythrocyte protoporphyrin (FEP) levels. Lead toxicity's contribution towards anemia pathogenesis, especially during malaria infection has not been studied. Concomitant exposure to both malaria infection and Lead pollution, exacerbates the anemia status. This study therefore aimed at expounding the anemia status of these Ugandan children aged under 5years who are exposed to both malaria infection and environmental Lead pollution. METHODS Briefly, venous blood samples from 198 children were microscopically assayed for malaria parasite density (PD), and hemoglobin (Hb) concentrations using the cyanmethemoglobin method, while BL and FEP levels were determined by the standard atomic absorption spectrophotometric and fluorometric methods respectively. RESULTS One hundred and fifty-one (76.3%) of the children analyzed had moderate anemia (Hb <10>5 g/dL) with Means of BLL=8.6 µg/dL, Hb =7.5 g/dL, FEP/Hb =8.3 µg/g and PD =3.21×103 parasites / µL, while eight (4%) were severely anemic (<5 g/dL). Regression analysis and statistical correlation between PD and Hb (r = -0.231, R2= 0.15 P-value < 0.001) was negative and weak as compared to that between FEP/Hb and Hb (r = -0.6, R2=0.572 P-value=0.001). CONCLUSION Based on the study's findings, we conclude that BL significantly contributes to the pathogenesis of anemia and therefore its co-existence with malaria infection in the host exacerbates the anemia status.
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Affiliation(s)
- Ambrose Mukisa
- Department of Biochemistry and Sports Science, College of Natural Sciences, Makerere University, Kampala, Uganda
| | - Denis Kasozi
- Department of Biochemistry and Sports Science, College of Natural Sciences, Makerere University, Kampala, Uganda
| | - Claire Aguttu
- Department of Biochemistry and Sports Science, College of Natural Sciences, Makerere University, Kampala, Uganda
| | - Peter C Vuzi
- Department of Biochemistry and Sports Science, College of Natural Sciences, Makerere University, Kampala, Uganda
| | - Joseph Kyambadde
- Department of Biochemistry and Sports Science, College of Natural Sciences, Makerere University, Kampala, Uganda.
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Use of Generalized Additive Model to Detect the Threshold of δ-Aminolevulinic Acid Dehydratase Activity Reduced by Lead Exposure. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17165712. [PMID: 32784669 PMCID: PMC7460038 DOI: 10.3390/ijerph17165712] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 08/01/2020] [Accepted: 08/05/2020] [Indexed: 11/16/2022]
Abstract
Background: Lead inhibits the enzymes in heme biosynthesis, mainly reducing δ-aminolevulinic acid dehydratase (ALAD) activity, which could be an available biomarker. The aim of this study was to detect the threshold of δ-aminolevulinic acid dehydratase activity reduced by lead exposure. Methods: We collected data on 121 lead workers and 117 non-exposed workers when annual health examinations were performed. ALAD activity was determined by the standardized method of the European Community. ALAD G177C (rs1800435) genotyping was conducted using the polymerase chain reaction and restricted fragment length polymorphism (PCR-RFLP) method. In order to find a threshold effect, we used generalized additive models (GAMs) and scatter plots with smoothing curves, in addition to multiple regression methods. Results: There were 229 ALAD1-1 homozygotes and 9 ALAD1-2 heterozygotes identified, and no ALAD2-2 homozygotes. Lead workers had significantly lower ALAD activity than non-exposed workers (41.6 ± 22.1 vs. 63.3 ± 14.0 U/L, p < 0.001). The results of multiple regressions showed that the blood lead level (BLL) was an important factor inversely associated with ALAD activity. The possible threshold of BLL affecting ALAD activity was around 5 μg/dL. Conclusions: ALAD activity was inhibited by blood lead at a possible threshold of 5 μg/dL, which suggests that ALAD activity could be used as an indicator for lead exposure regulation.
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Dehari-Zeka M, Letaj KR, Selimi QI, Elezaj IR. Blood lead level (BLL), δ-aminolevulinic acid dehydratase activity (ALAD), hemoglobin (Hb) and hematocrit (hct) in primary school-children and adult residents living in smelter rural areas in Kosovo. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2020; 55:1179-1187. [PMID: 32567994 DOI: 10.1080/10934529.2020.1780851] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 06/04/2020] [Accepted: 06/04/2020] [Indexed: 06/11/2023]
Abstract
The objective of this study was to investigate the effects of chronic environmental lead (Pb) exposure in blood lead level (BLL), δ-aminolevulinic acid dehydratase (ALAD) activity, hemoglobin (Hb) amount and hematocrit (Hct) value in primary schoolchildren and adults. Blood was obtained for BLL, ALAD, Hb and Hct measurements in 23 primary schoolchildren (girls and boys) and 117 adult residents (women and men) living in three villages (Kelmend, Boletin and Zhazhë) defined by concentric circles 2, 3 and 5 km in radius drawn around from the smelter-refinery complex "Trepça"in Zveçan and in Koliq village 40 km away. As expected, BLLs were substantially higher in the schoolchildren from smelter area compared with control (11 ± 4.2 µg/L and 6.9 ± 1.6 µg/L respectively) and in adult residents from Kelmend, Boletin and Zhazhë (24 ± 11.8, 12 ± 4.5, 11 ± 5.4 and 8.0 ± 2.8 µg/L respectively). Blood ALAD activity of children in Zhazhë is 16% inhibited compared to control and blood ALAD activity in adults in villages from smelter area is 32, 3%, 48, 4% and 17, 8% inhibited compared to control. There is no difference of Hb and Hct values in schoolchildren from Zhazhë and in adult residents from Kelmend and Zhazhë compared with control. Results of this study provide evidence of moderate inverse correlation between BLL and ALAD activity in both examined cohorts from smelter area. The inhibition of ALAD activity in primary schoolchildren and adults occurred at blood lead levels < 24 µg/L; consequently it can cause an increase of δ- Aminolevulinic acid.
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Affiliation(s)
- Mirlinda Dehari-Zeka
- Deparment of Biology, Faculty of Mathematical and Natural Sciences, University of Prishtina, Pristina, Republic of Kosovo
| | - Kasum Rr Letaj
- Deparment of Biology, Faculty of Mathematical and Natural Sciences, University of Prishtina, Pristina, Republic of Kosovo
| | - Qerim I Selimi
- Faculty of Education, University of Mitrovica, Mitrovica, Republic of Kosovo
| | - Isa R Elezaj
- Deparment of Biology, Faculty of Mathematical and Natural Sciences, University of Prishtina, Pristina, Republic of Kosovo
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18
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Bah HAF, Bandeira MJ, Gomes-Junior EA, Anjos ALS, Rodrigues YJM, Dos Santos NR, Martinez VO, Rocha RBMA, Costa RG, Adorno EV, Menezes-Filho JA. Environmental exposure to lead and hematological parameters in Afro-Brazilian children living near artisanal glazed pottery workshops. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2020; 55:964-974. [PMID: 32400283 DOI: 10.1080/10934529.2020.1761738] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 04/22/2020] [Accepted: 04/23/2020] [Indexed: 06/11/2023]
Abstract
This study aimed to evaluate the exposure to environmental lead (Pb) of children from a traditional community of African descent in Brazil and the effects on hematological parameters. Children (n = 75) aged 5.5-13 years from the exposed areas classified as low (LEx) and moderately (MEx) exposed were compared with children (n = 75) of a control group (CG). Dust Pb loading rates (RtPbs) at children's homes were measured. Peripheral venous blood samples were collected to assess Pb biomarkers of exposure and effects. All Pb determinations were performed by graphite furnace atomic absorption spectrometry. The median (IQR) of RtPb, PbB level, and ALA-D activity were 65 (25-137) μgPb/m2/30 days, 1.0 (0.1-2.8) μg/dL, and 71 (55-86) U/L, respectively. Spearman correlation evidenced the relationship of PbB with RtPb (rho = 0.368, P < 0.001) and ALA-D activity (rho = -0.587; P ˂ 0.001). After adjusting for exposure degree and child's age, a decline of 7.4 U/L in ALA-D activity was associated with a 10-fold increase in PbB. The prevalence ratio of elevated PbB (>5 μg/dL) in LEx and MEx areas were 1.5 and 3.7, respectively. Indoor dust exposure, living near pottery workshops and the secondary exposure were the main determinants of elevated PbB levels, which were associated with hematological effects.
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Affiliation(s)
- Homegnon A F Bah
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Salvador, Brazil
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Salvador, Brazil
| | - Matheus J Bandeira
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Salvador, Brazil
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Salvador, Brazil
| | - Erival A Gomes-Junior
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Salvador, Brazil
- Graduate Program in Food Science, College of Pharmacy, Federal University of Bahia, Salvador, Brazil
| | - Ana Laura S Anjos
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Salvador, Brazil
| | - Ynayara J M Rodrigues
- Graduate Program in Food Science, College of Pharmacy, Federal University of Bahia, Salvador, Brazil
| | - Nathália R Dos Santos
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Salvador, Brazil
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Salvador, Brazil
| | - Victor O Martinez
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Salvador, Brazil
| | - Rômula B M A Rocha
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Salvador, Brazil
| | - Renata G Costa
- Graduate Program in Food Science, College of Pharmacy, Federal University of Bahia, Salvador, Brazil
| | - Elisângela V Adorno
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Salvador, Brazil
| | - José A Menezes-Filho
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Salvador, Brazil
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Salvador, Brazil
- Graduate Program in Food Science, College of Pharmacy, Federal University of Bahia, Salvador, Brazil
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Alvarez-Ortega N, Caballero-Gallardo K, Olivero-Verbel J. Toxicological effects in children exposed to lead: A cross-sectional study at the Colombian Caribbean coast. ENVIRONMENT INTERNATIONAL 2019; 130:104809. [PMID: 31302530 DOI: 10.1016/j.envint.2019.05.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 04/28/2019] [Accepted: 05/02/2019] [Indexed: 06/10/2023]
Abstract
Lead (Pb) is an environmental pollutant with a toxicity that is a serious public health problem. The aim of this research was to evaluate the associations between Pb exposure and morphometric, hematological and biochemical parameters, mRNA expression of the P53, SOD1, ALAD, TNF and INF-γ genes, ALAD polymorphisms (db SNP ID: rs1800435) and Intelligence Quotient (IQ) in children from the Colombian Caribbean. Blood lead levels (BLL) were determined in 554 participants between the ages of 5-16 years old, from different places of the Colombian Caribbean. A health survey was given to assess risk factors. Whole blood was used for hematology and plasma employed to analyze markers of hepatic toxicity. Gene expression was quantified from blood mRNA by RT-PCR. The ALAD polymorphism was characterized by PCR-RFLP, and the Kaufman's brief intelligence test was employed to estimate the IQ. The mean BLL was 3.5 ± 0.2 μg/dL. The site of greatest exposure to Pb was Tasajera, a poor fishing community, with an average of 8.9 ± 0.8 μg/dL. Breastfeeding was associated with high BLL. Morphometric characteristics and IQ were negatively correlated with BLL. The blood platelet count and the mean corpuscular hemoglobin concentration showed positive and negative correlations with BLL, respectively. Negative relationships with BLL were observed with the ratios Neutrophils/Eosinophils and Neutrophils/Basophils, whereas for BLL and Neutrophils/Monocytes the association was positive. The associations between morphometric and some hematological parameters with BLL were age- and gender-related. The expression of ALAD, SOD1, INF-γ and P53 mRNA was down-regulated according to the BLL, whereas TNF showed an opposite trend. In short, fishing communities are at a high risk of Pb exposure. This xenobiotic can affect physical development and IQ, as well as hematological parameters, even at low concentrations. In addition, it can regulate the transcription of genes associated with inflammation, apoptosis, cell cycle, heme synthesis, and oxidative stress.
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Affiliation(s)
- Neda Alvarez-Ortega
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena 130015, Colombia
| | - Karina Caballero-Gallardo
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena 130015, Colombia
| | - Jesus Olivero-Verbel
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena 130015, Colombia.
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20
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Association of Delta-Aminolevulinic Acid Dehydratase Gene Variant with Serum Level of Alanine Aminotransferase. HEPATITIS MONTHLY 2019. [DOI: 10.5812/hepatmon.94664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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21
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Bede-Ojimadu O, Amadi CN, Orisakwe OE. Blood Lead Levels in Women of Child-Bearing Age in Sub-Saharan Africa: A Systematic Review. Front Public Health 2018; 6:367. [PMID: 30619808 PMCID: PMC6305709 DOI: 10.3389/fpubh.2018.00367] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 11/30/2018] [Indexed: 11/13/2022] Open
Abstract
This paper reported available studies on blood lead level of childbearing age in Sub-Saharan African women. PubMed and Google scholar databases were searched for original articles reporting blood lead levels of women of childbearing age in Sub-Saharan Africa. Searches were not limited to year of study but limited to studies published in English Language. Data were extracted and synthesized by estimating the weighted mean of the reported blood lead levels. Fifteen papers fulfilled the inclusion criteria. Mean blood lead levels of women in the studies ranged from 0.83 to 99 μg/dl. The overall weighted mean of blood lead levels was 24.73 μg/dl. The weighted mean from analyses of data on blood lead levels of pregnant women alone was 26.24 μg/dl. Identified sources of lead exposure included lead mine, informal lead-acid battery recycling, leaded gasoline and piped water. Elevated BLLs were associated with incidence of preeclampsia, hypertension, and malaria. Important contributing factors for elevated blood lead levels (BLL) in these women include poverty, high environmental lead burden, low awareness on lead exposure hazards and lack of regulation for lead in consumer products. BLLs of women of childbearing age in SSA are unacceptably high. There is need therefore, for aggressive programs to address lead exposure in this population.
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Affiliation(s)
- Onyinyechi Bede-Ojimadu
- Department of Chemical pathology, Faculty of Medicine, Nnamdi Azikiwe University, Awka, Nigeria
| | - Cecilia Nwadiuto Amadi
- Department of Experimental Pharmacology & Toxicology, Faculty of Pharmacy, University of Port-Harcourt, Port-Harcourt, Nigeria
| | - Orish Ebere Orisakwe
- Department of Experimental Pharmacology & Toxicology, Faculty of Pharmacy, University of Port-Harcourt, Port-Harcourt, Nigeria
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