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Zidarič T, Gradišnik L, Frangež T, Šoštarič M, Korunič E, Maver T, Maver U. Novel 3D printed polysaccharide-based materials with prebiotic activity for potential treatment of diaper rash. Int J Biol Macromol 2024; 269:131958. [PMID: 38697421 DOI: 10.1016/j.ijbiomac.2024.131958] [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: 01/18/2024] [Revised: 04/17/2024] [Accepted: 04/27/2024] [Indexed: 05/05/2024]
Abstract
Diaper rash, mainly occurring as erythema and itching in the diaper area, causes considerable distress to infants and toddlers. Increasing evidence suggests that an unequal distribution of microorganisms on the skin contributes to the development of diaper dermatitis. Probiotic bacteria, like Staphylococcus epidermidis, are crucial for maintaining a healthy balance in the skin's microbiome, among others, through their fermentative metabolites, such as short-chain fatty acids. Using a defined prebiotic as a carbon source (e.g., as part of the diaper formulation) can selectively trigger the fermentation of probiotic bacteria. A proper material choice can reduce diaper rash incidence by diminishing the skin exposure to wetness and faeces. Using 3D printing, we fabricated carbon-rich materials for the top sheet layer of baby diapers that enhance the probiotic activity of S. epidermidis. The developed materials' printability, chemical composition, swelling ability, and degradation rate were analysed. In addition, microbiological tests evaluated their potential as a source of in situ short-chain fatty acid production. Finally, biocompatibility testing with skin cells evaluated their safety for potential use as part of diapers. The results demonstrate a cost-effective approach for producing novel materials that can tailor the ecological balance of the skin microflora and help treat diaper rash.
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Affiliation(s)
- Tanja Zidarič
- University of Maribor, Faculty of Medicine, Institute of Biomedical Sciences, Taborska ulica 8, 2000 Maribor, Slovenia.
| | - Lidija Gradišnik
- University of Maribor, Faculty of Medicine, Institute of Biomedical Sciences, Taborska ulica 8, 2000 Maribor, Slovenia
| | - Tjaša Frangež
- National Laboratory for Health, Environment and Food, Centre for Microbiological Analysis of Food, Water and Other Environmental Samples, Maribor, Slovenia, Prvomajska ulica 1, 2000, Maribor, Slovenia
| | - Mojca Šoštarič
- National Laboratory for Health, Environment and Food, Centre for Microbiological Analysis of Food, Water and Other Environmental Samples, Maribor, Slovenia, Prvomajska ulica 1, 2000, Maribor, Slovenia
| | - Eva Korunič
- National Laboratory for Health, Environment and Food, Centre for Chemical Analysis of Food, Water and Other Environmental Samples, Maribor, Slovenia, Prvomajska ulica 1, 2000, Maribor, Slovenia
| | - Tina Maver
- University of Maribor, Faculty of Medicine, Institute of Biomedical Sciences, Taborska ulica 8, 2000 Maribor, Slovenia; University of Maribor, Faculty of Medicine, Department of Pharmacology, Taborska ulica 8, 2000 Maribor, Slovenia
| | - Uroš Maver
- University of Maribor, Faculty of Medicine, Institute of Biomedical Sciences, Taborska ulica 8, 2000 Maribor, Slovenia; University of Maribor, Faculty of Medicine, Department of Pharmacology, Taborska ulica 8, 2000 Maribor, Slovenia.
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Liu H, Wang Y, Ren Z, Ji X, Peprah FA, Zhang X, Dai S, Zhou Y, Gu J, Shi H. Dietary cadmium exposure causes elevation of blood ApoE with triglyceride level in mice. Biometals 2020; 33:241-254. [DOI: 10.1007/s10534-020-00247-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 09/10/2020] [Indexed: 11/30/2022]
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Guan X, Tang Y, Zha S, Han Y, Shi W, Ren P, Yan M, Pan Q, Hu Y, Fang J, Zhang J, Liu G. Exogenous Ca 2+ mitigates the toxic effects of TiO 2 nanoparticles on phagocytosis, cell viability, and apoptosis in haemocytes of a marine bivalve mollusk, Tegillarca granosa. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 252:1764-1771. [PMID: 31295695 DOI: 10.1016/j.envpol.2019.06.053] [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: 01/08/2019] [Revised: 05/23/2019] [Accepted: 06/11/2019] [Indexed: 06/09/2023]
Abstract
Phagocytosis suppression induced by nanoparticles (NPs) exposure is increasingly reported in marine species. However, the mechanisms underlying this impact remain poorly understood. In order to improve our present understanding of the immunotoxicity of NPs, acute (96 h) TiO2 NP exposure and rescue trials via exogenous supply of Ca2+ were performed in the blood clam, Tegillarca granosa. The results show that the phagocytosis rate, cell viability, and intracellular Ca2+ concentration of haemocytes were significantly suppressed, whereas the intracellular ROS concentration of haemocytes significantly increased upon nTiO2 exposure. Exposure to nTiO2 also led to the significant downregulation of Caspase-3, Caspase-6, apoptosis regulator Bcl-2, Bcl-2-associated X, calmodulin kinase II, and calmodulin kinase kinase II. Furthermore, the toxic impacts of nTiO2 were partially mitigated by the addition of exogenous Ca2+, as indicated by the recovery tendency in almost all the measured parameters. The present study indicates that Ca2+ signaling could be one of the key pathways through which nTiO2 attacks phagocytosis.
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Affiliation(s)
- Xiaofan Guan
- College of Animal Science, Zhejiang University, Hangzhou, 310058, China
| | - Yu Tang
- College of Animal Science, Zhejiang University, Hangzhou, 310058, China
| | - Shanjie Zha
- College of Animal Science, Zhejiang University, Hangzhou, 310058, China
| | - Yu Han
- College of Animal Science, Zhejiang University, Hangzhou, 310058, China
| | - Wei Shi
- College of Animal Science, Zhejiang University, Hangzhou, 310058, China
| | - Peng Ren
- Mariculture Research Institute of Zhejiang Province, Wenzhou, 325005, China
| | - Maocang Yan
- Mariculture Research Institute of Zhejiang Province, Wenzhou, 325005, China
| | - Qicun Pan
- Mariculture Research Institute of Zhejiang Province, Wenzhou, 325005, China
| | - Yuan Hu
- Mariculture Research Institute of Zhejiang Province, Wenzhou, 325005, China
| | - Jun Fang
- Mariculture Research Institute of Zhejiang Province, Wenzhou, 325005, China
| | - Jiongming Zhang
- Mariculture Research Institute of Zhejiang Province, Wenzhou, 325005, China
| | - Guangxu Liu
- College of Animal Science, Zhejiang University, Hangzhou, 310058, China.
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Shi W, Guan X, Han Y, Guo C, Rong J, Su W, Zha S, Wang Y, Liu G. Waterborne Cd 2+ weakens the immune responses of blood clam through impacting Ca 2+ signaling and Ca 2+ related apoptosis pathways. FISH & SHELLFISH IMMUNOLOGY 2018; 77:208-213. [PMID: 29609026 DOI: 10.1016/j.fsi.2018.03.055] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 03/21/2018] [Accepted: 03/29/2018] [Indexed: 06/08/2023]
Abstract
Exposure to heavy metals such as Cadmium (Cd) may exert detrimental impacts on the immune responses of marine bivalve species. However, the immunotoxicity of Cd on blood clams remains unknown to date. Furthermore, though Cd2+ is known to compete with calcium (Ca2+) ions for their binding sites in cells and inhibit Ca2+ influx, whether Cd2+ weakens the immune responses of marine bivalves through inducing intracellular Ca2+ disorders still remains unclear. Therefore, the immunotoxicity of Cd2+ at different waterborne Ca2+ concentrations on blood clam, Tegillarca granosa, were investigated in the present study. Results obtained demonstrated that the total number, phagocytic activity, and red granulocytes ratio of the haemocytes were all significantly reduced after 10 days exposure of individuals to 25 μg/L Cd2+. However, when the waterborne Ca2+ concentrations were elevated by 10% and 20% (approximately 370 and 410 mg/L, respectively), mitigation effects on the immune responses of individuals were detected. In addition, though the expressions of genes from the Ca2+ signaling and Ca2+-related apoptosis pathways were significantly altered by Cd2+ exposure, the expression patterns of these genes were similar to that of the control when the waterborne Ca2+ concentrations were elevated, suggesting a relieving effect of waterborne Ca2+ on Cd2+ induced toxicity to haemocytes. The results obtained in the present study revealed that waterborne Cd2+ may hamper the immune responses of T. granosa through influencing Ca2+ signaling and Ca2+-related apoptosis pathways, which can be partially mitigated by elevating the waterborne Ca2+ concentrations.
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Affiliation(s)
- Wei Shi
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Xiaofan Guan
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Yu Han
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Cheng Guo
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Jiahuan Rong
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Wenhao Su
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Shanjie Zha
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Yichen Wang
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Guangxu Liu
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China.
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Souza-Talarico JN, Marcourakis T, Barbosa F, Moraes Barros SB, Rivelli DP, Pompéia S, Caramelli P, Plusquellec P, Lupien SJ, Catucci RF, Alves AR, Suchecki D. Association between heavy metal exposure and poor working memory and possible mediation effect of antioxidant defenses during aging. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 575:750-757. [PMID: 27670596 DOI: 10.1016/j.scitotenv.2016.09.121] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 09/15/2016] [Accepted: 09/15/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Inverse associations have been observed between memory performance and blood concentrations of cadmium (Cd) and lead (Pb). Low antioxidant cell activity has also been linked to decline in memory due to aging. However, it has not yet been established whether the heavy metal-memory relationship is mediated by differences in antioxidant activity. METHODS We examined Cd and Pb levels, as well as oxidative stress parameters, in blood samples from 125 older adults (age range 50-82years). The Counting Span Test (CST) was used to evaluate working memory capacity (WMC). The Monte Carlo Method for Assessing Mediation (MCMAM) was used to analyze the mediation role of antioxidant activity in the heavy metals-memory association. RESULTS High blood Cd (BCd) concentration alone, and in combination with elevated blood Pb (BPb) concentration, was associated with poor WMC (p≤0.001) and low enzymatic antioxidant defenses (p≥0.006). The variance in WMC accounted for by BCd or by BCd combine with BPb was 20.6% and 18.6%, respectively. The MCMAM revealed that the influence of BCd and BPb concentrations on WMC was mediated by low antioxidant capacity (confidence interval - CI: 0.072 to -0.064 for BCd; CI: -0.062 to -0.045 for BPb). CONCLUSION These findings showed Pb and Cd blood concentration in older adults, even at levels below the current recommended threshold, was negatively associated with WMC and that this relationship may be partly mediated by low antioxidant defenses. Knowledge on the environmental factors that negatively influence brain and cognition during aging can help inform public policy strategies to prevent and control the adverse effects of environmental contaminant exposure during aging.
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Affiliation(s)
- Juliana Nery Souza-Talarico
- Department of Medical-Surgical Nursing, School of Nursing, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 419, São Paulo, SP 05403000, Brazil.
| | - Tania Marcourakis
- Department of Clinical Chemistry and Toxicology, School of Pharmaceutical Sciences, University of São Paulo, Av. Professor Lineu Prestes, 580, São Paulo, SP 05434070, Brazil.
| | - Fernando Barbosa
- Department of Clinical Chemistry and Toxicology, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Av. do Café, s/n, Ribeirão Preto, SP 14040903, Brazil.
| | - Silvia Berlanga Moraes Barros
- Department of Clinical Chemistry and Toxicology, School of Pharmaceutical Sciences, University of São Paulo, Av. Professor Lineu Prestes, 580, São Paulo, SP 05434070, Brazil.
| | - Diogo Pineda Rivelli
- Department of Clinical Chemistry and Toxicology, School of Pharmaceutical Sciences, University of São Paulo, Av. Professor Lineu Prestes, 580, São Paulo, SP 05434070, Brazil.
| | - Sabine Pompéia
- Department of Psychobiology, Federal University of São Paulo, Rua Botucatu, 862, São Paulo, SP 04023-062, Brazil.
| | - Paulo Caramelli
- Behavioral and Cognitive Neurology Unit, Department of Internal Medicine, Faculty of Medicine, Federal University of Minas Gerais, Av. Prof. Alfredo Balena, 190, Belo Horizonte, MG 30130100, Brazil.
| | - Pierrich Plusquellec
- Centre for Studies on Human Stress, Mental Health Research Centre Fernand Seguin, Hospital Louis H. Lafontaine, Université de Montréal, 7401, rue Hochelaga, Montréal, Québec H1N 3M5, Canada.
| | - Sonia J Lupien
- Centre for Studies on Human Stress, Mental Health Research Centre Fernand Seguin, Hospital Louis H. Lafontaine, Université de Montréal, 7401, rue Hochelaga, Montréal, Québec H1N 3M5, Canada.
| | - Raphael Fernandes Catucci
- Department of Clinical Chemistry and Toxicology, School of Pharmaceutical Sciences, University of São Paulo, Av. Professor Lineu Prestes, 580, São Paulo, SP 05434070, Brazil
| | - Andrea Regiani Alves
- Department of Medical-Surgical Nursing, School of Nursing, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 419, São Paulo, SP 05403000, Brazil.
| | - Deborah Suchecki
- Department of Psychobiology, Federal University of São Paulo, Rua Botucatu, 862, São Paulo, SP 04023-062, Brazil.
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Fei BB, Ling L, Hua C, Ren SY. Effects of soybean oligosaccharides on antioxidant enzyme activities and insulin resistance in pregnant women with gestational diabetes mellitus. Food Chem 2014; 158:429-32. [PMID: 24731365 DOI: 10.1016/j.foodchem.2014.02.106] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Revised: 02/03/2014] [Accepted: 02/19/2014] [Indexed: 11/23/2022]
Abstract
The effects of soybean oligosaccharides (SBOS) on antioxidant enzyme activities and insulin resistance in pregnant women with gestational diabetes mellitus (GDM) were investigated. Ninety-seven pregnant women with GDM were randomly divided into two groups, the control group (51 cases) and the SBOS group (46 cases). Before the group separation, the blood sugar level in patients was maintained stable by regular diet and insulin treatment. The control group was continued with the insulin treatment, while the SBOS group was treated with the combination of insulin and SBOS. Results showed that SBOS were able to reduce oxidative stress and alleviate insulin resistance in pregnant women with GDM, which indicates that SBOS may play an important role in the control of GDM complications.
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Affiliation(s)
- Bei-bei Fei
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Li Ling
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China.
| | - Chen Hua
- Department of Emergency, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Shu-yan Ren
- Clinic of Nutrition, Suzhou Municipal Hospital, Suzhou 215002, China
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Zhao H, Hong J, Yu X, Zhao X, Sheng L, Ze Y, Sang X, Gui S, Sun Q, Wang L, Hong F. Oxidative stress in the kidney injury of mice following exposure to lanthanides trichloride. CHEMOSPHERE 2013; 93:875-884. [PMID: 23830120 DOI: 10.1016/j.chemosphere.2013.05.034] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2012] [Revised: 05/17/2013] [Accepted: 05/21/2013] [Indexed: 06/02/2023]
Abstract
Environmental pollution from lanthanides (Ln) has been recognized as a major problem due to a grab exploitation of Ln mine in China. Exposure to Ln has been demonstrated to cause the nephrotoxicity, very little is known about the mechanism of oxidative damage to kidney in animals. In order to understand Ln-induced nephrotoxicity, various biochemical and chemical parameters were assayed in mouse kidney. Intragastric exposures of LaCl₃, CeCl₃, and NdCl₃ at doses of 2, 5, and 10 mg kg(-1) BW for 90 consecutive days caused nephritis or epithelial cell necrosis and oxidative stress to kidney. An increase in coefficients of the kidney, La, Ce, and Nd accumulation and histopathological changes in the kidney could be observed, followed by increased reactive oxygen species production and peroxidation levels of lipid, protein and DNA, and decreased activities of superoxide dismutase, catalase, glutathione-S-transferase and glutathione reductase as well as antioxidants such as glutathione, ascorbic acid and thiol contents. Furthermore, La, Ce, and Nd significantly suppressed expression of genes and proteins of these antioxidative enzymes in mouse kidney. In addition, kidney functions were disrupted, including an increase of the creatinine, and reductions of uric acid, urea nitrogen, calcium and phosphonium. These findings suggest that nephritis generation or epithelial cell necrosis in mice following exposure to Ln is closely associated with oxidative stress. Of these damages, the most severe was in the Ce(3+)-exposed kidneys, next in the Nd(3+)-exposed kidneys, and the least in the La(3+)-exposed kidneys, which may be attributed to the 4f electron of Ln.
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Affiliation(s)
- Haiquan Zhao
- Medical College of Soochow University, Suzhou 215123, China; College of Life Sciences, Anhui Agriculture University, Hefei 230036, China
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Yang Z, Yu Y, Yao L, Li G, Wang L, Hu Y, Wei H, Wang L, Hammami R, Razavi R, Zhong Y, Liang X. DetoxiProt: an integrated database for detoxification proteins. BMC Genomics 2011; 12 Suppl 3:S2. [PMID: 22369658 PMCID: PMC3333179 DOI: 10.1186/1471-2164-12-s3-s2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background Detoxification proteins are a class of proteins for degradation and/or elimination of endogenous and exogenous toxins or medicines, as well as reactive oxygen species (ROS) produced by these materials. Most of these proteins are generated as a response to the stimulation of toxins or medicines. They are essential for the clearance of harmful substances and for maintenance of physiological balance in organisms. Thus, it is important to collect and integrate information on detoxification proteins. Results To store, retrieve and analyze the information related to their features and functions, we developed the DetoxiProt, a comprehensive database for annotation of these proteins. This database provides detailed introductions about different classes of the detoxification proteins. Extensive annotations of these proteins, including sequences, structures, features, inducers, inhibitors, substrates, chromosomal location, functional domains as well as physiological-biochemical properties were generated. Furthermore, pre-computed BLAST results, multiple sequence alignments and evolutionary trees for detoxification proteins are also provided for evolutionary study of conserved function and pathways. The current version of DetoxiProt contains 5956 protein entries distributed in 628 organisms. An easy to use web interface was designed, so that annotations about each detoxification protein can be retrieved by browsing with a specific method or by searching with different criteria. Conclusions DetoxiProt provides an effective and efficient way of accessing the detoxification protein sequences and other high-quality information. This database would be a valuable source for toxicologists, pharmacologists and medicinal chemists. DetoxiProt database is freely available at http://lifecenter.sgst.cn/detoxiprot/.
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Affiliation(s)
- Zhen Yang
- School of Life Science, Fudan University, HanDan Road 220#, Shanghai, 200433, China
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Wang Y, Zhou M, Gong X, Liu C, Hong M, Wang L, Hong F. Influence of lanthanides on the antioxidative defense system in maize seedlings under cold stress. Biol Trace Elem Res 2011; 142:819-30. [PMID: 20737244 DOI: 10.1007/s12011-010-8814-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2010] [Accepted: 08/10/2010] [Indexed: 11/24/2022]
Abstract
The influence of LaCl(3), CeCl(3), and NdCl(3) on the antioxidative defense system in maize seedlings under cold stress was investigated. It was found that maize seedlings cultivated in cold stress developed distinct cold symptoms, and the plant growth was significantly inhibited as expected, while Ln-treated seedling growth was improved. Cold stress in maize seedlings also increased the permeability of plasma membrane, malondialdehyde as a degradation product of lipid peroxidation, and reactive oxygen species such as superoxide radicals and hydrogen peroxide, and decreased activities of the antioxidant enzymes such as superoxide dismutase, catalase, ascorbate peroxidase, and glutathione content; however, Ln treatments cultivated in cold stress decreased the permeability of plasma membrane, malondialdehyde, and reactive oxygen species, and increased activities of the antioxidative defense system. It implied that Ln could increase oxidative-stress resistance under cold stress. On the other hand, the assay of physiological and biochemical parameters demonstrated that Ce relieving chilling injury of maize seedlings caused by cold stress was most significant, medium in the Nd treatment, and last in the La treatment. These results suggested that the increase of cold resistance of maize seedlings caused by Ln might be closely related to its properties of 4f electron shell and variable valence.
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Affiliation(s)
- Ying Wang
- Medical College of Soochow University, 215123 Suzhou, People's Republic of China
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Zhao H, Cheng Z, Hu R, Chen J, Hong M, Zhou M, Gong X, Wang L, Hong F. Oxidative injury in the brain of mice caused by lanthanid. Biol Trace Elem Res 2011; 142:174-89. [PMID: 20614199 DOI: 10.1007/s12011-010-8759-1] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2010] [Accepted: 06/21/2010] [Indexed: 10/19/2022]
Abstract
The organ toxicity of lanthanides (Ln) on organisms had been recognized, but very little is known about the oxidative injury of brain caused by Ln. In order to study the mechanisms underlying the effects of Ln on the brain, ICR mice were injected with a single 20 mg/kg body weight dose of LaCl(3), CeCl(3), and NdCl(3) into the abdominal cavity daily for 14 days. We then examined the coefficient of the brain, the brain pathological changes and oxidative stress-mediated responses, and the accumulation of Ln and levels of neurochemicals in the brain. The results showed that CeCl(3) and NdCl(3) could induce some neurons to turn inflammatory cells and slight edema but did not observe the brain pathological changes from LaCl(3)-treated group. The concentrations of La, Ce, and Nd in the brain were significantly different and ranked in the order of Ce, Nd, and La. The injury of the brain and oxidative stress occurred as Ln appeared to trigger a cascade of reactions such as lipid peroxidation, the decreases of the total antioxidation capacity and activities of antioxidative enzymes, the excessive release of nitric oxide, the increase of glutamic acid, and the downregulated level of acetylcholinesterase activities. Furthermore, both Ce(3+) and Nd(3+) exhibited higher oxidative stress and toxicity on brain than La(3+), and Ce(3+) caused more severe brain injuries and oxidative stress than Nd(3+), implying that the differences in the brain injuries caused by Ln might be related to the number of 4f electrons of Ln.
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Affiliation(s)
- Haiquan Zhao
- Medical College of Soochow University, Suzhou 215123, People's Republic of China
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Fei M, Li N, Ze Y, Liu J, Gong X, Duan Y, Zhao X, Wang H, Hong F. Oxidative stress in the liver of mice caused by intraperitoneal injection with lanthanoides. Biol Trace Elem Res 2011; 139:72-80. [PMID: 20191389 DOI: 10.1007/s12011-010-8638-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2010] [Accepted: 02/01/2010] [Indexed: 11/28/2022]
Abstract
In order to study the mechanisms underlying the effects of lanthanoid (Ln) on the liver, ICR mice were injected with LaCl₃, CeCl₃, and NdCl₃ at a dose of 20 mg/kg BW into the abdominal cavity daily for 14 days. We then examined oxidative stress-mediated responses in the liver. The increase of lipid peroxide in the liver produced by Ln suggested an oxidative attack that was activated by a reduction of antioxidative defense mechanisms as measured by analyzing the activities of superoxide dismutase, catalase, and ascorbate peroxidase, as well as antioxidant levels such as glutathione and ascorbic acid, which were greatest in Ce(3+) treatment, medium in Nd(3+), and least in La(3+). Our results also implied that the oxidative stress in the liver caused by Ln likely is Ce(3+) > Nd(3+) >La(3+), but the mechanisms need to be further studied in future.
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Affiliation(s)
- Min Fei
- Medical College of Soochow University, Suzhou 215123, People's Republic of China
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12
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Monitoring the effects of exposure to lead and cadmium in working and living environment through standard biochemical blood parameters and liver endonucleases activity. HEMIJSKA INDUSTRIJA 2011. [DOI: 10.2298/hemind110308027n] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Heavy metals as pollutants in the working and living environment are a
serious health and environmental problem because they are toxic,
non-biodegradable, accumulate in living systems and have a long half-life in
soil. Sources of lead contamination are combustion products in the chemical
industry and metallurgy, industrial waste water, landfills, traffic etc. Lead
enters into the body via the food chain and drinking water. In the body lead
is deposited in the liver, kidneys, brain and mineral tissues. Excretion of
lead causes damage to the epithelial cells of certain organs. High level
exposure to cadmium is usually the result of environmental pollution by human
activities. Exposure to cadmium can lead to acute and chronic tissue damage
of various organs, including liver and kidneys in humans and in animals. In
this paper we analyzed the effects of lead and cadmium exposure, in working
and living environment, on the model system of experimental animals,
particularly the activity of certain liver enzymes, acid and alkaline DNase,
and standard biochemical blood parameters. The study showed that lead and
cadmium significantly affect the protein content, red blood cells, hemoglobin
and hematocrit, and the activity of liver enzymes. This harmful effect of
this toxic metal can be reduced by the supplements.
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Ling Q, Hong F. Antioxidative role of cerium against the toxicity of lead in the liver of silver crucian carp. FISH PHYSIOLOGY AND BIOCHEMISTRY 2010; 36:367-376. [PMID: 19130280 DOI: 10.1007/s10695-008-9301-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2008] [Accepted: 12/14/2008] [Indexed: 05/27/2023]
Abstract
The antioxidative role of cerium was investigated in the liver of silver crucian carp injected with lead. The fish were intraperitoneally injected with 10, 20, or 30 mg/kg wet weight PbCl(2). After a 14-day period of incubation, 35 animals were injected with a solution of 1.5 mg/kg wet weight CeCl(3). After 42 days, the wet weight and the liver weight of the fish were weighed, and the oxidative stress of the fish liver was estimated by assaying lipid peroxide, superoxide dismutase, catalase, ascorbate peroxidase, glutathione peroxidase, glutathione, ascorbic acid, and reactive oxygen species (ROS). The results show that Ce(3+) could decrease ROS accumulation, relieve the inhibition of the activities of the antioxidant enzyme and the reduction of antioxidants in fish liver caused by Pb(2+), and decrease the enhancement of hepatosomatic index of fish under various Pb(2+) dosages.
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Affiliation(s)
- Qufei Ling
- Medical College of Soochow University, Suzhou, 215123, People's Republic of China
| | - Fashui Hong
- Medical College of Soochow University, Suzhou, 215123, People's Republic of China.
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