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Matsumura N, Tanaka YK, Ogra Y, Koga K, Shiratani M, Nagano K, Tanaka A. Subchronic toxicity study of indium-tin oxide nanoparticles following intratracheal administration into the lungs of rats. J Occup Health 2024; 66:uiae019. [PMID: 38626325 PMCID: PMC11131026 DOI: 10.1093/joccuh/uiae019] [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: 11/15/2023] [Revised: 02/15/2024] [Accepted: 03/29/2024] [Indexed: 04/18/2024] Open
Abstract
OBJECTIVES We aimed to analyze the subchronic toxicity and tissue distribution of indium after the intratracheal administration of indium-tin oxide nanoparticles (ITO NPs) to the lungs of rats. METHODS Male Wistar rats were administered a single intratracheal dose of 10 or 20 mg In/kg body weight (BW) of ITO NPs. The control rats received only an intratracheal dose of distilled water. A subset of rats was periodically euthanized throughout the study from 1 to 20 weeks after administration. Indium concentrations in the serum, lungs, mediastinal lymph nodes, kidneys, liver, and spleen as well as pathological changes in the lungs and kidneys were determined. Additionally, the distribution of ionic indium and indium NPs in the kidneys was analyzed using laser ablation-inductively coupled plasma mass spectrometry. RESULTS Indium concentrations in the lungs of the 2 ITO NP groups gradually decreased over the 20-week observation period. Conversely, the indium concentrations in the mediastinal lymph nodes of the 2 ITO groups increased and were several hundred times higher than those in the kidneys, spleen, and liver. Pulmonary and renal toxicities were observed histopathologically in both the ITO groups. Both indium NPs and ionic indium were detected in the kidneys, and their distributions were similar to the strong indium signals detected at the sites of inflammatory cell infiltration and tubular epithelial cells. CONCLUSIONS Our results demonstrate that intratracheal administration of 10 or 20 mg In/kg BW of ITO NPs in male rats produces pulmonary and renal toxicities.
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Affiliation(s)
- Nagisa Matsumura
- Environmental Health, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yu-ki Tanaka
- Toxicology and Environmental Health, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan
| | - Yasumitsu Ogra
- Toxicology and Environmental Health, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan
| | - Kazunori Koga
- Department of Electronics, Faculty of Information Science and Electrical Engineering, Kyushu University, Fukuoka, Japan
| | - Masaharu Shiratani
- Department of Electronics, Faculty of Information Science and Electrical Engineering, Kyushu University, Fukuoka, Japan
| | - Kasuke Nagano
- Nagano Toxicologic-Pathology Consulting, Hadano, Japan
| | - Akiyo Tanaka
- Environmental Health, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Taghavizadeh Yazdi ME, Qayoomian M, Beigoli S, Boskabady MH. Recent advances in nanoparticle applications in respiratory disorders: a review. Front Pharmacol 2023; 14:1059343. [PMID: 37538179 PMCID: PMC10395100 DOI: 10.3389/fphar.2023.1059343] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 05/30/2023] [Indexed: 08/05/2023] Open
Abstract
Various nanoparticles are used in the discovery of new nanomedicine to overcome the shortages of conventional drugs. Therefore, this article presents a comprehensive and up-to-date review of the effects of nanoparticle-based drugs in the treatment of respiratory disorders, including both basic and clinical studies. Databases, including PubMed, Web of Knowledge, and Scopus, were searched until the end of August 2022 regarding the effect of nanoparticles on respiratory diseases. As a new tool, nanomedicine offered promising applications for the treatment of pulmonary diseases. The basic composition and intrinsic characteristics of nanomaterials showed their effectiveness in treating pulmonary diseases. The efficiency of different nanomedicines has been demonstrated in experimental animal models of asthma, chronic obstructive pulmonary disease (COPD), pulmonary fibrosis (PF), lung cancer, lung infection, and other lung disorders, confirming their function in the improvement of respiratory disorders. Various types of nanomaterials, such as carbon nanotubes, dendrimers, polymeric nanomaterials, liposomes, quantum dots, and metal and metal oxide nanoparticles, have demonstrated therapeutic effects on respiratory disorders, which may lead to new possible remedies for various respiratory illnesses that could increase drug efficacy and decrease side effects.
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Affiliation(s)
| | - Mohsen Qayoomian
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sima Beigoli
- Mashhad University of Medical Sciences, Mashhad, Razavi Khorasan, Iran
| | - Mohammad Hossein Boskabady
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Physiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Sutunkova MP, Klinova SV, Ryabova YV, Tazhigulova AV, Minigalieva IA, Shabardina LV, Solovyeva SN, Bushueva TV, Privalova LI. Comparative Evaluation of the Cytotoxic Effects of Metal Oxide and Metalloid Oxide Nanoparticles: An Experimental Study. Int J Mol Sci 2023; 24:ijms24098383. [PMID: 37176090 PMCID: PMC10178919 DOI: 10.3390/ijms24098383] [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: 03/30/2023] [Revised: 04/28/2023] [Accepted: 05/03/2023] [Indexed: 05/15/2023] Open
Abstract
Industrial production generates aerosols of complex composition, including an ultrafine fraction. This is typical for mining and metallurgical industries, welding processes, and the production and recycling of electronics, batteries, etc. Since nano-sized particles are the most dangerous component of inhaled air, in this study we aimed to establish the impact of the chemical nature and dose of nanoparticles on their cytotoxicity. Suspensions of CuO, PbO, CdO, Fe2O3, NiO, SiO2, Mn3O4, and SeO nanoparticles were obtained by laser ablation. The experiments were conducted on outbred female albino rats. We carried out four series of a single intratracheal instillation of nanoparticles of different chemical natures at doses ranging from 0.2 to 0.5 mg per animal. Bronchoalveolar lavage was taken 24 h after the injection to assess its cytological and biochemical parameters. At a dose of 0.5 mg per animal, cytotoxicity in the series of nanoparticles changed as follows (in decreasing order): CuO NPs > PbO NPs > CdO NPs > NiO NPs > SiO2 NPs > Fe2O3 NPs. At a lower dose of 0.25 mg per animal, we observed a different pattern of cytotoxicity of the element oxides under study: NiO NPs > Mn3O4 NPs > CuO NPs > SeO NPs. We established that the cytotoxicity increased non-linearly with the increase in the dose of nanoparticles of the same chemical element (from 0 to 0.5 mg per animal). An increase in the levels of intracellular enzymes (amylase, AST, ALT, LDH) in the supernatant of the bronchoalveolar lavage fluid indicated a cytotoxic effect of nanoparticles. Thus, alterations in the cytological parameters of the bronchoalveolar lavage and the biochemical characteristics of the supernatant can be used to predict the danger of new nanomaterials based on their comparative assessment with the available tested samples of nanoparticles.
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Affiliation(s)
- Marina P Sutunkova
- Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Street, 620014 Yekaterinburg, Russia
| | - Svetlana V Klinova
- Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Street, 620014 Yekaterinburg, Russia
| | - Yuliya V Ryabova
- Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Street, 620014 Yekaterinburg, Russia
| | - Anastasiya V Tazhigulova
- Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Street, 620014 Yekaterinburg, Russia
| | - Ilzira A Minigalieva
- Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Street, 620014 Yekaterinburg, Russia
| | - Lada V Shabardina
- Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Street, 620014 Yekaterinburg, Russia
| | - Svetlana N Solovyeva
- Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Street, 620014 Yekaterinburg, Russia
| | - Tatiana V Bushueva
- Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Street, 620014 Yekaterinburg, Russia
| | - Larisa I Privalova
- Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Street, 620014 Yekaterinburg, Russia
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Inoue C, Ohkouchi S, Chonan T, Amata A, Hirama T, Saito-Koyama R, Kawabata Y, Suzuki T, Okada Y, Tanaka A, Kurosawa H. A case report of Indium lung with progressive emphysema and fibrosis underwent lung unilateral transplantation 20 years after the end of the exposure. Diagn Pathol 2023; 18:10. [PMID: 36709285 PMCID: PMC9883848 DOI: 10.1186/s13000-023-01303-1] [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: 12/21/2022] [Accepted: 01/23/2023] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Indium lung is characterized by interstitial pneumonia and/or emphysema which occurs in indium-tin oxide (ITO) workers. Indium lung is now known to progress after stopping exposure to ITO, but the long-term influences of ITO remain unclear. CASE PRESENTATION Forty seven years old, a never-smoker, who had been engaged in an ITO manufacturing process for 8 years. Emphysema was indicated by the medical check-up for ex-ITO workers, and he was diagnosed with indium lung. He underwent partial lung resections for pneumothorax two times, and obstructive pulmonary dysfunction had progressed through the years. He underwent right single lung transplant 20 years after ITO exposure. Pathologically, his lung showed severe distal acinar emphysema and honeycomb change. Fibrosis and destruction of the lung tissue significantly progressed compared to the previous partial resections. Scanning electron microscopy combined with energy dispersive spectroscopy revealed that the deposited particles contained indium and tin. After the transplantation, his respiratory function was improved. CONCLUSIONS In this case, ITO resided in the lung tissue for 20 years, and lung tissue destruction kept progressing. Careful medical follow-up is recommended for ITO-workers even if they are asymptomatic.
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Affiliation(s)
- Chihiro Inoue
- grid.69566.3a0000 0001 2248 6943Department of Anatomic Pathology, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Shinya Ohkouchi
- grid.69566.3a0000 0001 2248 6943Department of Occupational Health, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Tatsuya Chonan
- grid.416238.aDepartment of Medicine, Nikko Memorial Hospital, Hitachi, Japan
| | - Atsuko Amata
- grid.416238.aDepartment of Medicine, Nikko Memorial Hospital, Hitachi, Japan
| | - Takashi Hirama
- grid.69566.3a0000 0001 2248 6943Department of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Ryoko Saito-Koyama
- grid.415495.80000 0004 1772 6692Department of Pathology, National Hospital Organization, Sendai Medical Center, Sendai, Japan
| | - Yoshinori Kawabata
- Division of Diagnostic Pathology, Saitama Prefectural Cardiovascular and Respiratory Center, Kumagaya, Japan
| | - Takashi Suzuki
- grid.69566.3a0000 0001 2248 6943Department of Anatomic Pathology, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Yoshinori Okada
- grid.69566.3a0000 0001 2248 6943Department of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Akiyo Tanaka
- grid.177174.30000 0001 2242 4849Environmental Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hajime Kurosawa
- grid.69566.3a0000 0001 2248 6943Department of Occupational Health, Graduate School of Medicine, Tohoku University, Sendai, Japan
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Liu N, Guan Y, Yu Y, Li G, Xue L, Li W, Qu X, Li N, Yao S. Pulmonary effects of exposure to indium and its compounds: cross-sectional survey of exposed workers and experimental findings in rodents. Part Fibre Toxicol 2022; 19:69. [PMID: 36539793 PMCID: PMC9764635 DOI: 10.1186/s12989-022-00510-w] [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: 07/02/2022] [Accepted: 11/28/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Many studies have shown that occupational exposure to indium and its compounds could induce lung disease. Although animal toxicological studies and human epidemiological studies suggest indium exposure may cause lung injury, inflammation, pulmonary fibrosis, emphysema, pulmonary alveolar proteinosis, and even lung cancer, related data collected from humans is currently limited and confined to single workplaces, and the early effects of exposure on the lungs are not well understood. OBJECTIVES This study combined population studies and animal experiments to examine the links of indium with pulmonary injury, as well as its mechanism of action. A cross-sectional epidemiological study of indium-exposed workers from China was conducted to evaluate associations between occupational indium exposure and serum biomarkers of early effect. This study also compares and analyzes the causal perspectives of changes in human serum biomarkers induced by indium compound exposure and indium exposure-related rat lung pathobiology, and discusses possible avenues for their recognition and prevention. METHODS This is a study of 57 exposed (at least 6 h per day for one year) workers from an indium ingot production plant, and 63 controls. Indium concentration in serum, urine, and airborne as exposure indices were measured by inductively coupled plasma-mass spectrometry. Sixteen serum biomarkers of pulmonary injury, inflammation, and oxidative stress were measured using ELISA. The associations between serum indium and 16 serum biomarkers were analyzed to explore the mechanism of action of indium on pulmonary injury in indium-exposed workers. Animal experiments were conducted to measure inflammatory factors levels in bronchoalveolar lavage fluid (BALF) and lung tissue protein expressions in rats. Four different forms of indium compound-exposed rat models were established (intratracheal instillation twice per week, 8 week exposure, 8 week recovery). Model I: 0, 1.2, 3, and 6 mg/kg bw indium tin oxide group; Model II: 0, 1.2, 3, and 6 mg/kg bw indium oxide (In2O3) group; Model III: 0, 0.523, 1.046, and 2.614 mg/kg bw indium sulfate (In2(SO4)3) group; Model IV: 0, 0.065, 0.65, and 1.3 mg/kg bw indium trichloride (InCl3) group. Lung pathological changes were assessed by hematoxylin & eosin, periodic acid Schiff, and Masson's staining, transmission electron microscopy, and the protein changes were determined by immunohistochemistry. RESULTS In the production workshop, the airborne indium concentration was 78.4 μg/m3. The levels of serum indium and urine indium in indium-exposed workers were 39.3 μg/L and 11.0 ng/g creatinine. Increased lung damage markers, oxidative stress markers, and inflammation markers were found in indium-exposed workers. Serum indium levels were statistically and positively associated with the serum levels of SP-A, IL-1β, IL-6 in indium-exposed workers. Among them, SP-A showed a duration-response pattern. The results of animal experiments showed that, with an increase in dosage, indium exposure significantly increased the levels of serum indium and lung indium, as well as the BALF levels of IL‑1β, IL‑6, IL‑10, and TNF‑α and up-regulated the protein expression of SP-A, SP-D, KL-6, GM-CSF, NF-κB p65, and HO-1 in all rat models groups. TEM revealed that In2(SO4)3 and InCl3 are soluble and that no particles were found in lung tissue, in contrast to the non-soluble compounds (ITO and In2O3). No PAS-staining positive substance was found in the lung tissue of In2(SO4)3 and InCl3 exposure groups, whereas ITO and In2O3 rat models supported findings of pulmonary alveolar proteinosis and interstitial fibrosis seen in human indium lung disease. ITO and InCl3 can accelerate interstitial fibrosis. Findings from our in vivo studies demonstrated that intra-alveolar accumulation of surfactant (immunohistochemistry) and characteristic cholesterol clefts granulomas of indium lung disease (PAS staining) were triggered by a specific form of indium (ITO and In2O3). CONCLUSIONS In indium-exposed workers, biomarker findings indicated lung damage, oxidative stress and an inflammatory response. In rat models of the four forms of indium encountered in a workplace, the biomarkers response to all compounds overall corresponded to that in humans. In addition, pulmonary alveolar proteinosis was found following exposure to indium tin oxide and indium oxide in the rat models, and interstitial fibrosis was found following exposure to indium tin oxide and indium trichloride, supporting previous report of human disease. Serum SP-A levels were positively associated with indium exposure and may be considered a potential biomarker of exposure and effect in exposed workers.
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Affiliation(s)
- Nan Liu
- grid.440734.00000 0001 0707 0296School of Public Health, North China University of Science and Technology, Key Laboratory of Coal Mine Health and Safety in Hebei, Tangshan, 063210 Hebei China
| | - Yi Guan
- grid.440734.00000 0001 0707 0296School of Public Health, North China University of Science and Technology, Key Laboratory of Coal Mine Health and Safety in Hebei, Tangshan, 063210 Hebei China
| | - Yan Yu
- grid.440734.00000 0001 0707 0296School of Public Health, North China University of Science and Technology, Key Laboratory of Coal Mine Health and Safety in Hebei, Tangshan, 063210 Hebei China
| | - Gai Li
- grid.470203.2North China University of Science and Technology Affiliated Hospital, Tangshan, 063000 Hebei China
| | - Ling Xue
- grid.440734.00000 0001 0707 0296School of Public Health, North China University of Science and Technology, Key Laboratory of Coal Mine Health and Safety in Hebei, Tangshan, 063210 Hebei China
| | - Weikang Li
- grid.440734.00000 0001 0707 0296School of Public Health, North China University of Science and Technology, Key Laboratory of Coal Mine Health and Safety in Hebei, Tangshan, 063210 Hebei China
| | - Xiaoyu Qu
- grid.440734.00000 0001 0707 0296School of Public Health, North China University of Science and Technology, Key Laboratory of Coal Mine Health and Safety in Hebei, Tangshan, 063210 Hebei China
| | - Ning Li
- grid.440734.00000 0001 0707 0296School of Public Health, North China University of Science and Technology, Key Laboratory of Coal Mine Health and Safety in Hebei, Tangshan, 063210 Hebei China
| | - Sanqiao Yao
- grid.440734.00000 0001 0707 0296School of Public Health, North China University of Science and Technology, Key Laboratory of Coal Mine Health and Safety in Hebei, Tangshan, 063210 Hebei China ,grid.412990.70000 0004 1808 322XXinxiang Medical University, Xinxiang, 453003 Henan China
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Guan Y, Liu N, Yu Y, Zhou Q, Chang M, Wang Y, Yao S. Pathological Comparison of Rat Pulmonary Models Induced by Silica Nanoparticles and Indium-Tin Oxide Nanoparticles. Int J Nanomedicine 2022; 17:4277-4292. [PMID: 36134200 PMCID: PMC9484578 DOI: 10.2147/ijn.s380259] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 09/11/2022] [Indexed: 12/02/2022] Open
Abstract
Purpose The objective of this study was to evaluate and compare the histopathological implications of silica nanoparticles (Nano-SiO2) and indium-tin oxide nanoparticles (Nano-ITO), in vivo. Methods Male Sprague-Dawley rats were exposed to Nano-SiO2 (50 mg/kg) and Nano-ITO (6 mg/kg) by a single intratracheal instillation, respectively. Broncho-alveolar lavage fluid (BALF) and lung tissue were obtained at 7, 14, 28, and 56 days post exposure for analysis of BALF inflammatory factors, total protein, and for lung tissue pathology. Histopathological and ultrastructural change in lungs were investigated by hematoxylin and eosin, Masson’s trichrome, sirius red staining, periodic acid Schiff stain, and transmission electron microscopy. The expression of SP-A, collagen type I and III in lung tissue was determined by immunohistochemistry and ELISA. Results The rats in both models exhibited obvious collagen fibrosis and the severity of the lung injury increased with time after exposure to respective dosage increased. Several parameters of pulmonary inflammation and fibrosis significantly increased in both groups, which was reflected by increased LDH activity, total proteins, TNF-α, and IL-6 levels in BALF, and confirmed by histopathological examination. The results also showed that the two models exhibited different features. Exposure to Nano-ITO caused persistent chronic lung inflammation, illustrated by the infiltration of a large amount of enlarged and foamy macrophages and neutrophils into the lung parenchyma. In Nano-SiO2 exposed rat lung tissue, granulomatous inflammation was most prominent followed by progressive and massive fibrotic nodules. Compared with the Nano-SiO2 rats, Nano-ITO exposed rats exhibited significantly severe pulmonary alveolar proteinosis (PAP) pathological changes, lower fibrosis, and higher levels of inflammatory biomarkers. However, Nano-SiO2 exposed rats had greater fibrosis pathological changes and more severe granulomas than Nano-ITO exposed rats. Conclusion This study suggests that the Nano-SiO2-induced model has greater value in research into granulomas and fibrosis, while the Nano-ITO-induced model has greater repeatability in area of PAP.
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Affiliation(s)
- Yi Guan
- School of Public Health, North China University of Science and Technology, Tangshan, People's Republic of China
| | - Nan Liu
- School of Public Health, North China University of Science and Technology, Tangshan, People's Republic of China
| | - Yan Yu
- School of Public Health, North China University of Science and Technology, Tangshan, People's Republic of China
| | - Qiang Zhou
- School of Public Health, North China University of Science and Technology, Tangshan, People's Republic of China.,School of Public Health, Xinxiang Medical University, Xinxiang, People's Republic of China
| | - Meiyu Chang
- School of Public Health, North China University of Science and Technology, Tangshan, People's Republic of China.,School of Public Health, Xinxiang Medical University, Xinxiang, People's Republic of China
| | - Yongheng Wang
- School of Public Health, North China University of Science and Technology, Tangshan, People's Republic of China
| | - Sanqiao Yao
- School of Public Health, North China University of Science and Technology, Tangshan, People's Republic of China.,School of Public Health, Xinxiang Medical University, Xinxiang, People's Republic of China
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Zou P, Li M, Chen W, Ji J, Xue F, Wang Z, Xu L, Cheng Y. Association between trace metals exposure and hearing loss. Front Public Health 2022; 10:973832. [PMID: 36062090 PMCID: PMC9428401 DOI: 10.3389/fpubh.2022.973832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 08/01/2022] [Indexed: 01/21/2023] Open
Abstract
Background Trace metals have side-effect on human health. The association between trace metals exposure and hearing loss remains unclear. Methods A total of 8,128 participants were exacted for analysis of association between trace metals and hearing loss from the database of the National Health and Nutrition Examination Survey (NHANES) (2013-2018). Multivariable logistic regression and restricted cubic spline models were used to examine the association between trace metals and hearing loss. Results Participants with hearing loss had a higher level of lead, cadmium, molybdenum, tin, thallium, and tungsten (all p < 0.05). After adjusting for confounders, compared with the reference of the lowest quartile, the ORs with 95%CIs for hearing loss across quartiles were 1.14 (0.86, 1.51), 1.49 (1.12, 1.98), 1.32 (0.97, 1.80) for cobalt, and 1.35 (0.98, 1.87), 1.58 (1.15, 2.16), 1.75 (1.28, 2.40) for tin. Individuals with the level of cobalt at third quartile had 49% higher risks of hearing loss than those at lowest quartile. And participants with highest quartile of tin had 1.75-folds risks of hearing loss than those with lowest quartile of tin. There were increasing trends in risks of hearing loss with a raised level of thallium (p for trend <0.05). Restricted cubic spline regression analysis indicated that there was a nonlinear association between hearing loss and the levels of tin (p for nonlinearity = 0.021). Subgroup analysis showed that individuals of female, without hypertension and diabetes, and with a higher level of low-density lipoprotein cholesterol had modified effects on the associations between hearing loss and exposure to tin. Conclusions Our study indicated that exposure to cobalt and tin were significantly associated with hearing loss.
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Affiliation(s)
- Peixi Zou
- Department of Otolaryngology-Head and Neck Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Menghuan Li
- The First Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Wei Chen
- Department of Otolaryngology-Head and Neck Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Junfeng Ji
- Department of Otolaryngology-Head and Neck Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Fei Xue
- Department of Otolaryngology-Head and Neck Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Zhiyi Wang
- Department of Otolaryngology-Head and Neck Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Li Xu
- Department of Otolaryngology-Head and Neck Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - You Cheng
- Department of Otolaryngology-Head and Neck Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
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8
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Liu N, Li G, Guan Y, Wang R, Ma Z, Zhao L, Yao S. N-acetylcysteine alleviates pulmonary alveolar proteinosis induced by indium-tin oxide nanoparticles in male rats: involvement of the NF-κB signaling pathway. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 241:113812. [PMID: 36068741 DOI: 10.1016/j.ecoenv.2022.113812] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/22/2022] [Accepted: 06/22/2022] [Indexed: 06/15/2023]
Abstract
Indium-tin oxide (ITO) was previously found to have a toxic effect on lung tissues, and oxidative stress and the inflammatory response are two important mechanisms of ITO‑induced lung injury. N-acetylcysteine (NAC) has been found to exhibit antioxidant and anti‑inflammatory properties. The current study aimed to evaluate the possible protective effects of NAC against ITO nanoparticle (Nano-ITO)-induced pulmonary alveolar proteinosis (PAP) in adult male Sprague-Dawley rats, especially via modulation of nuclear factor-kappa B (NF-κB) signaling. For this purpose, 50 rats were randomly allocated into five groups (10 rats each) as follows: (1) control group; (2) saline group; (3) NAC (200 mg/kg) group; (4) PAP model group receiving a repeated intratracheal dose of Nano-ITO (6 mg/kg); and (5) PAP model+NF-κB inhibitor (NAC) group pre-treated intraperitoneally with NAC (200 mg/kg) twice per week before the administration of an intratracheal dose of Nano-ITO (6 mg/kg). Rats were then euthanized under anesthesia, and their lungs were removed for histopathological and biochemical investigations. A 6 mg/kg dose of Nano-ITO markedly altered the levels of some oxidative stress biomarkers. The histological examination of Nano-ITO-exposed rats demonstrated diffused alveolar damage that involved PAP, cholesterol crystals, alveolar fibrosis, pulmonary fibrosis, and alveolar emphysema. The immunohistochemical results of Nano-ITO-exposed rats revealed strongly positive NF-κB p65 and inhibitory kappa B kinase (IKK)-β and weakly positive inhibitor of kappa-B subunit alpha (IκB-α) staining reactivity in the nuclei of cells lining the epithelium of the bronchioles and alveoli. Moreover, Nano-ITO activated the NF-κB pathway. However, pre-treatment with NAC significantly attenuated Nano-ITO-evoked alterations in the previously mentioned parameters, highlighting their antioxidant, anti-inflammatory, and anti-apoptotic potential. The results indicated that the degree of pulmonary fibrosis and proteinosis in the NAC‑treated group was improved compared with that in the Nano-ITO-induced PAP model group. The level of malondialdehyde was also decreased overall in the NAC-treated group compared with that in the Nano-ITO-induced model group, indicating that the pulmonary fibrosis degree and oxidation levels were decreased. The present study also demonstrated that NAC increased the activity of antioxidant enzyme superoxide dismutase and total antioxidant capacity, indicating that it could alleviate oxidative stress in the lung tissue of Nano-ITO‑exposed rats. In addition, NAC reduced the production of pro‑inflammatory cytokines interleukin (IL)‑1β, IL‑6, and tumor necrosis factor (TNF)‑α, and increased the levels of anti‑inflammatory factor IL‑10. The current study demonstrated that NAC can effectively attenuate Nano-ITO‑induced lung injury by reducing oxidative damage and the inflammatory response.
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Affiliation(s)
- Nan Liu
- School of Public Health, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Gai Li
- North China University of Science and Technology Affiliated Hospital, Tangshan 063000, Hebei, China
| | - Yi Guan
- School of Public Health, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Rui Wang
- North China University of Science and Technology Affiliated Hospital, Tangshan 063000, Hebei, China
| | - Zhanfei Ma
- Institute of Industrial Hygiene of Ordnance industry, Xian 710065, Shanxi, China
| | - Linlin Zhao
- School of Pharmacy, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Sanqiao Yao
- School of Public Health, North China University of Science and Technology, Tangshan 063210, Hebei, China; Xinxiang Medical University, Xinxiang 453003, Henan, China.
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Liu Z, Xu B, Ding Y, Ding X, Yang Z. Guizhi Fuling pill attenuates liver fibrosis in vitro and in vivo via inhibiting TGF-β1/Smad2/3 and activating IFN-γ/Smad7 signaling pathways. Bioengineered 2022; 13:9357-9368. [PMID: 35387552 PMCID: PMC9161976 DOI: 10.1080/21655979.2022.2054224] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Liver fibrosis resulting from chronic liver injuries (CLI) is a common health problem globally. Guizhi Fuling pill (GZFL), a modern preparation from traditional Chinese medicine, exhibited anti-dysmenorrhea, anti-inflammatory, and immune-regulative effects. However, the effect of GZFL on liver fibrosis remains unknown. In this research, LX-2 cells were stimulated with acetaldehyde for mimicking liver fibrosis progression in vitro. In addition, carbon tetrachloride (CCl4)-induced mouse model of liver fibrosis was established as well. The data revealed GZFL obviously suppressed the proliferation and triggered the apoptosis of acetaldehyde-stimulated LX-2 cells. In addition, GZFL prevented acetaldehyde-induced activation of LX-2 cells via downregulation of TGF-β1, p-Smad2, p-Smad3, CUGBP1, and upregulation of p-STAT1 and Smad7. Meanwhile, GZFL significantly alleviated CCl4‑induced liver fibrosis, as evidenced by the decrease of ALT and AST levels. Moreover, GZFL downregulated the expressions of TGF-β1, p-Smad2, p-Smad3, and CUGBP1 in CCl4-treated mice. Furthermore, GZFL remarkably elevated the levels of IFN-γ, p-STAT1, and Smad7 in CCl4-treated mice. To sum up, GZFL was able to inhibit liver fibrosis in vitro and in vivo through suppressing TGF-β1/Smad2/3-CUGBP1 signaling and activating IFN-γ/STAT1/Smad7 signaling. Thus, GZFL might have a potential to act as a therapeutic agent for anti-fibrotic therapy.
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Affiliation(s)
- Zhongliang Liu
- Department of Oncology, Zhoushan Hospital of Traditional Chinese Medicine (Affiliated to Zhejiang University of Traditional Chinese Medicine), Zhoushan, P.R. China
| | - Baogui Xu
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, China
| | - Yaping Ding
- Department of Nutrition, Zhoushan Hospital of Traditional Chinese Medicine (Affiliated to Zhejiang University of Traditional Chinese Medicine), Zhoushan, P.R. China
| | - Xianjun Ding
- Department of Infectious Diseases, Zhoushan Hospital of Traditional Chinese Medicine (Affiliated to Zhejiang University of Traditional Chinese Medicine), Zhoushan, P.R. China.,Department of Infectious Diseases, Zhoushan Hospital, P.R. China
| | - Zuisu Yang
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, China
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