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Li Y, Pan Y, Yin Y, Huang R. Integrating Transcriptomics and Proteomics to Characterize the Intestinal Responses to Cadmium Exposure Using a Piglet Model. Int J Mol Sci 2024; 25:6474. [PMID: 38928180 PMCID: PMC11203886 DOI: 10.3390/ijms25126474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 05/18/2024] [Accepted: 05/30/2024] [Indexed: 06/28/2024] Open
Abstract
Cadmium (Cd) is a heavy metal element with a wide range of hazards and severe biotoxicity. Since Cd can be easily accumulated in the edible parts of plants, the exposure of humans to Cd is mainly through the intake of Cd-contaminated food. However, the intestinal responses to Cd exposure are not completely characterized. Herein, we simulated laboratory and environmental Cd exposure by feeding the piglets with CdCl2-added rice and Cd-contaminated rice (Cdcr) contained diet, as piglets show anatomical and physiological similarities to humans. Subsequent analysis of the metal element concentrations showed that exposure to the two types of Cd significantly increased Cd levels in piglets. After verifying the expression of major Cd transporters by Western blots, multi-omics further expanded the possible transporters of Cd and found Cd exposure causes wide alterations in the metabolism of piglets. Of significance, CdCl2 and Cdcr exhibited different body distribution and metabolic rewiring, and Cdcr had stronger carcinogenic and diabetes-inducing potential. Together, our results indicate that CdCl2 had a significant difference compared with Cdcr, which has important implications for a more intense study of Cd toxicity.
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Affiliation(s)
- Yikun Li
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China;
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Yiling Pan
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Yulong Yin
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Ruilin Huang
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
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Onen P, Akemkwene R, Nakiguli CK, Nimusiima D, Ruma DH, Khanakwa AV, Angiro C, Bamanya G, Opio B, Gonzaga A, Omara T. Health Risks from Intake and Contact with Toxic Metal-Contaminated Water from Pager River, Uganda. J Xenobiot 2023; 13:544-559. [PMID: 37873812 PMCID: PMC10594420 DOI: 10.3390/jox13040035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/20/2023] [Accepted: 09/22/2023] [Indexed: 10/25/2023] Open
Abstract
Pollution of water resources is one of the major impediments to the realization of Sustainable Development Goals, especially in developing countries. The aim of this study was to investigate the physicochemical quality and potentially toxic element (lead and cadmium) concentrations in surface water sampled from Pager River, a tributary of the Nile River in Northern Uganda. Water samples (n = 18) were taken from six different points upstream (A, B, and C) and downstream (D, E, and F) of the river and analyzed following standard methods for their physiochemical properties. Atomic absorption spectroscopy was used to quantify lead and cadmium concentrations. Human health risks from ingestion and dermal contact with potentially toxic metal-contaminated water were calculated. The results obtained indicated that the mean temperature (27.7 ± 0.5-29.5 ± 0.8 °C), turbidity (40.7 ± 2.1-50.1 ± 1.1 NTU), lead (0.296 ± 0.030-0.576 ± 0.163 mg/L) and cadmium (0.278 ± 0.040-0.524 ± 0.040 mg/L) occurred at levels that surpassed their permissible limits as per World Health Organization guidelines for drinking water. Human health risk assessment showed that there are potential non-cancer risks from the ingestion of water from Pager River by adults, as the total hazard quotients were greater than one. These results emphasize the urgency to restrict the dumping of wastes into the river to minimize chances of impacting the Nile River, which flows northwards to the Mediterranean Sea. Further studies should perform routine monitoring of the river during both dry and wet seasons to establish the spatiotemporal variations of physicochemical, microbial, and trace metal profiles of the river and the associated health risks.
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Affiliation(s)
- Patrick Onen
- Department of Chemistry, University of Kerala, Thiruvananthapuram 695581, India
| | - Robin Akemkwene
- Department of Chemistry, Faculty of Education and Humanities, Gulu University, Gulu P.O. Box 166, Uganda
| | - Caroline K. Nakiguli
- Department of Chemistry, Faculty of Science, Mbarara University of Science and Technology, Mbarara P.O. Box 1410, Uganda
| | - Daniel Nimusiima
- Department of Chemistry, Faculty of Science, Mbarara University of Science and Technology, Mbarara P.O. Box 1410, Uganda
| | - Daniel Hendry Ruma
- Department of Nutritional Sciences and Dietetics, Kyambogo University, Kampala P.O. Box 1, Uganda
| | - Alice V. Khanakwa
- Department of Environmental Health and Disease Prevention, Faculty of Public Health, Lira University, Lira P.O. Box 1035, Uganda
| | - Christopher Angiro
- School of Water, Energy and Environment, Water Science Institute, Cranfield University, College Road, Cranfield MK43 0AL, UK
| | - Gadson Bamanya
- Department of Physical Sciences, Kampala International University, Kampala P.O. Box 20000, Uganda
| | - Boniface Opio
- Department of Science and Vocational Education, Lira University, Lira P.O. Box 1035, Uganda
| | - Allan Gonzaga
- Department of Physical Sciences, Kampala International University, Kampala P.O. Box 20000, Uganda
| | - Timothy Omara
- Chemistry Division, Testing Department, Uganda National Bureau of Standards, Kampala P.O. Box 6329, Uganda
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Cadmium-Induced Proteinuria: Mechanistic Insights from Dose-Effect Analyses. Int J Mol Sci 2023; 24:ijms24031893. [PMID: 36768208 PMCID: PMC9915107 DOI: 10.3390/ijms24031893] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 01/16/2023] [Accepted: 01/17/2023] [Indexed: 01/21/2023] Open
Abstract
Cadmium (Cd) is a toxic metal that accumulates in kidneys, especially in the proximal tubular epithelial cells, where virtually all proteins in the glomerular ultrafiltrate are reabsorbed. Here, we analyzed archived data on the estimated glomerular filtration rate (eGFR) and excretion rates of Cd (ECd), total protein (EProt), albumin (Ealb), β2-microglobulin (Eβ2M), and α1-microglobulin (Eα1M), which were recorded for residents of a Cd contamination area and a low-exposure control area of Thailand. Excretion of Cd and all proteins were normalized to creatinine clearance (Ccr) as ECd/Ccr and EProt/Ccr to correct for differences among subjects in the number of surviving nephrons. Low eGFR was defined as eGFR ≤ 60 mL/min/1.73 m2, while proteinuria was indicted by EPro/Ccr ≥ 20 mg/L of filtrate. EProt/Ccr varied directly with ECd/Ccr (β = 0.263, p < 0.001) and age (β = 0.252, p < 0.001). In contrast, eGFR values were inversely associated with ECd/Ccr (β = -0.266, p < 0.001) and age (β = -0.558, p < 0.001). At ECd/Ccr > 8.28 ng/L of filtrate, the prevalence odds ratios for proteinuria and low eGFR were increased 4.6- and 5.1-fold, respectively (p < 0.001 for both parameters). Thus, the eGFR and tubular protein retrieval were both simultaneously diminished by Cd exposure. Of interest, ECd/Ccr was more closely correlated with EProt/Ccr (r = 0.507), Eβ2M (r = 0.430), and Eα1M/Ccr (r = 0.364) than with EAlb/Ccr (r = 0.152). These data suggest that Cd may differentially reduce the ability of tubular epithelial cells to reclaim proteins, resulting in preferential reabsorption of albumin.
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Huang H, Yao J, Yang N, Yang L, Tao L, Yu J, Gao Y, Liu Z. Association between levels of blood trace minerals and periodontitis among United States adults. Front Nutr 2022; 9:999836. [PMID: 36159490 PMCID: PMC9490086 DOI: 10.3389/fnut.2022.999836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 08/22/2022] [Indexed: 11/16/2022] Open
Abstract
Aim Evidence linking trace minerals and periodontitis is limited. To investigate the relationship between trace minerals (selenium, manganese, lead, cadmium, and mercury) and periodontitis, data from the National Health and Nutrition Examination Survey (NHANES) were analyzed after accounting for potential confounding factors. No known studies have explored the relationship between these five trace minerals and periodontitis. Materials and methods A total of 4,964 participants who had undergone a full-mouth periodontal examination and laboratory tests for five trace minerals were studied in a cross-sectional study. Clinical attachment loss (CAL) and periodontitis grading were used to measure periodontitis severity. Linear and logistic regression models were used to evaluate the association between trace minerals and periodontitis. Further subgroup analyses were performed. Results Blood lead and cadmium levels were positively associated with mean CAL, and blood selenium was negatively associated with mean CAL; however, blood mercury, blood manganese, and mean CAL were not significantly associated. The association between trace minerals and mean CAL was more significant in males, the elderly, and patients with diabetes. There was a threshold effect between blood cadmium levels and mean CAL. Among the Black population, the relationship between blood cadmium levels and mean CAL followed an inverted U-shaped curve. There was a saturation effect in the study of blood lead in people aged 45–59 years old. Conclusion Our study highlighted that blood selenium, lead, and cadmium levels were significantly associated with periodontitis in a nationally representative sample of United States adults.
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Yan J, Zhang H, Hu Z, Zhang X, Niu J, Luo B, Wang H, Li X. Association among Helicobacter pylori Infection, Tooth Loss, and Heavy Medal Exposure in a Chinese Rural Population. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19084569. [PMID: 35457441 PMCID: PMC9025748 DOI: 10.3390/ijerph19084569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/18/2022] [Accepted: 04/07/2022] [Indexed: 11/23/2022]
Abstract
Previous research suggests that heavy metals may be associated with increased susceptibility to Helicobacter pylori infection. This study investigated the effect of heavy metal exposure (Pb and Cd) on tooth loss and H. pylori infection in a Chinese rural population, who live near a mining and smelting area. Blood samples were collected from the study participants to estimate the lead (Pb) and cadmium (Cd) exposure levels. H. pylori infection was analyzed using the 14C-urea breath test, and the number of missing teeth (MT), filled teeth (FT), and missing or filled teeth (MFT) were counted by conducting a physical examination. Regression analysis was used to assess the difference between H. pylori-positive and -negative individuals in the MT, FT, and MFT groups, adjusting for confounders. The H. pylori infection prevalence was higher in individuals in the high Cd or high Pb groups than that in the low Cd or low Pb groups (p < 0.05). In addition, greater numbers of FT and MFT were observed in individuals in the high Pb group than those in the low Pb group (p < 0.05). We further found 8.7% (95% CI, 2.8−23.8%, p = 0.017) of the effect of the high BPb level on H. pylori infection risk could be statistically explained by FT using amediation analyses in adjusted models, and 6.8% (95% CI, 1.6−24.8%, p = 0.066) by MFT. Furthermore, FT and MFT were significantly associated with increased risk for H. pylori infection (odds ratio (OR) = 4.938, 95% confidence interval (CI): 1.125−21.671; OR = 3.602, 95% CI: 1.218−10.648, respectively). Pb and Cd exposure may be associated with tooth loss and increased susceptibility to H. pylori infection, and tooth loss may be an independent risk factor for H. pylori infection.
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Affiliation(s)
- Jun Yan
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou 730000, China;
- Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province, Lanzhou 730000, China;
- The First School of Clinical Medine, Lanzhou University, Lanzhou 730000, China;
| | - Honglong Zhang
- The First School of Clinical Medine, Lanzhou University, Lanzhou 730000, China;
| | - Zenan Hu
- Department of Digestive Diseases, The First Hospital of Lanzhou University, Lanzhou 730000, China;
| | - Xuan Zhang
- School of Stomatology, Northwest Minzu University, Lanzhou 730000, China;
| | - Jingping Niu
- Institute of Occupational and Environmental Health, School of Public Health, Lanzhou University, Lanzhou 730000, China; (J.N.); (B.L.)
| | - Bin Luo
- Institute of Occupational and Environmental Health, School of Public Health, Lanzhou University, Lanzhou 730000, China; (J.N.); (B.L.)
| | - Haiping Wang
- Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province, Lanzhou 730000, China;
- The First School of Clinical Medine, Lanzhou University, Lanzhou 730000, China;
| | - Xun Li
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou 730000, China;
- Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province, Lanzhou 730000, China;
- The First School of Clinical Medine, Lanzhou University, Lanzhou 730000, China;
- Correspondence: ; Tel.: +86-139-9313-8612
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