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Zhang S, Meng L, Hu Y, Yuan Z, Li J, Liu H. Green Synthesis and Biosafety Assessment of MXene. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308600. [PMID: 37974554 DOI: 10.1002/smll.202308600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 10/27/2023] [Indexed: 11/19/2023]
Abstract
The rise of MXene-based materials with fascinating physical and chemical properties has attracted wide attention in the field of biomedicine, because it can be exploited to regulate a variety of biological processes. The biomedical applications of MXene are still in its infancy, nevertheless, the comprehensive evaluation of MXene's biosafety is desperately needed. In this review, the composition and the synthetic methods of MXene materials are first introduced from the view of biosafety. The evaluation of the interaction between MXene and cells, as well as the safety of different forms of MXene applied in vivo are then discussed. This review provides a basic understanding of MXene biosafety and may bring new inspirations to the future applications of MXene-based materials in biomedicine.
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Affiliation(s)
- Shengmin Zhang
- Institute for Advanced Interdisciplinary Research (iAIR) School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
- Department of Stomatology, Cangzhou Medical College, Jinan, 061001, China
| | - Ling Meng
- Institute for Advanced Interdisciplinary Research (iAIR) School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Ying Hu
- Institute for Advanced Interdisciplinary Research (iAIR) School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Zihan Yuan
- State Key Laboratory of Crystal Materials Shandong University, Jinan, Shandong, 250100, China
| | - Jianhua Li
- Department of Biomaterials, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, 250012, China
| | - Hong Liu
- Institute for Advanced Interdisciplinary Research (iAIR) School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
- State Key Laboratory of Crystal Materials Shandong University, Jinan, Shandong, 250100, China
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Ajuwon OR, Adeleke TA, Ajiboye BO, Lawal AO, Folorunso I, Brai B, Bamisaye FA, Falode JA, Odoh IM, Adegbite KI, Adegoke OB. Fermented Rooibos tea (Aspalathus linearis) Ameliorates Sodium Fluoride-Induced Cardiorenal Toxicity, Oxidative Stress, and Inflammation via Modulation of NF-κB/IκB/IκKB Signaling Pathway in Wistar Rats. Cardiovasc Toxicol 2024; 24:240-257. [PMID: 38315346 DOI: 10.1007/s12012-024-09826-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 01/05/2024] [Indexed: 02/07/2024]
Abstract
High dose of fluoride intake is associated with toxic effects on kidney and cardiac tissues. This study evaluated the potential protective effect of fermented rooibos tea (RTE) on sodium fluoride (NaF)-induced cardiorenal toxicity in rats. Male Wistar rats (n = 56) were randomly allocated into one of seven equal groups: control, NaF (100 mg/kg orally), NaF + RTE (2%, w/v), NaF + RTE (4%, w/v), NaF + lisinopril (10 mg/kg orally), 2% RTE, and 4% RTE. The experiment lasted for 14 days and RTE was administered to the rats as their sole source of drinking fluid. NaF induced cardiorenal toxicity indicated by elevated level of urea, creatinine, LDH, creatinine kinase-MB, and cardiac troponin I in the serum, accompanied by altered histopathology of the kidney and heart. Furthermore, levels of H2O2, malondialdehyde, and NO were elevated, while GSH level was depleted in the kidney and heart due to NaF intoxication. Protein levels of c-reactive protein, TNFα, IL-1B, and NF-κB were increased by NaF in the serum, kidney, and heart. RTE at 2% and 4% (w/v) reversed cardiorenal toxicity, resolved histopathological impairment, attenuated oxidative stress and inhibited formation of pro-inflammatory markers. RTE at both concentrations down-regulates the mRNA expression of NF-κB, and upregulates the mRNA expression of both IκB and IκKB, thus blocking the activation of NF-κB signaling pathway. Taken together, these results clearly suggest that the protective potential of rooibos tea against NaF-induced cardiorenal toxicity, oxidative stress, and inflammation may be associated with the modulation of the NF-κB signaling pathway.
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Affiliation(s)
- Olawale Razaq Ajuwon
- Department of Biochemistry, Federal University, Oye-Ekiti, Oye-Are Road, P.M.B. 373, Oye-Ekiti, 371104, Ekiti State, Nigeria.
| | - Toyosi Abiodun Adeleke
- Department of Biochemistry, Federal University, Oye-Ekiti, Oye-Are Road, P.M.B. 373, Oye-Ekiti, 371104, Ekiti State, Nigeria
| | - Basiru Olaitan Ajiboye
- Department of Biochemistry, Federal University, Oye-Ekiti, Oye-Are Road, P.M.B. 373, Oye-Ekiti, 371104, Ekiti State, Nigeria
| | - Akeem Olalekan Lawal
- Department of Biochemistry, Federal University of Technology, Akure, P.M.B. 704, Akure, Ondo State, Nigeria
| | - Ibukun Folorunso
- Department of Biochemistry, Federal University of Technology, Akure, P.M.B. 704, Akure, Ondo State, Nigeria
| | - Bartholomew Brai
- Department of Biochemistry, Federal University, Oye-Ekiti, Oye-Are Road, P.M.B. 373, Oye-Ekiti, 371104, Ekiti State, Nigeria
| | - Fisayo Abraham Bamisaye
- Department of Biochemistry, Federal University, Oye-Ekiti, Oye-Are Road, P.M.B. 373, Oye-Ekiti, 371104, Ekiti State, Nigeria
| | - John Adeolu Falode
- Department of Biochemistry, Federal University, Oye-Ekiti, Oye-Are Road, P.M.B. 373, Oye-Ekiti, 371104, Ekiti State, Nigeria
| | - Ikenna Maximillian Odoh
- Department of Biochemistry, Federal University, Oye-Ekiti, Oye-Are Road, P.M.B. 373, Oye-Ekiti, 371104, Ekiti State, Nigeria
- Medical Center, Federal University, Oye-Ekiti, Oye-Are Road, P.M.B. 373, Oye-Ekiti, 371104, Ekiti State, Nigeria
| | - Kabirat Iyabode Adegbite
- Department of Environmental Health Science, College of Basic Medical and Health Sciences, Fountain University, Osogbo, P.M.B. 4491, Osogbo, Osun State, Nigeria
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Das S, Dey A, Maji S, Sahoo A, Barman A, Santra S, Mondal S, Mondal KC, Chattopadhyay S. Attenuation of fluoride-induced hepatorenal oxidative stress by ferulic acid in vivo: An approach with in-silico analysis and interaction informatics of ferulic acid. J Trace Elem Med Biol 2023; 77:127133. [PMID: 36638706 DOI: 10.1016/j.jtemb.2023.127133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 01/06/2023] [Accepted: 01/08/2023] [Indexed: 01/11/2023]
Abstract
BACKGROUND Chronic fluoride toxicity induces oxidative strain and lipid peroxidation and imparts deleterious effects on human metabolic organs. AIM The present study aimed to expose the defensive impact of ferulic acid against sodium fluoride (NaF) induced hepatorenal dysfunction at the biochemical and antioxidative systems. METHODS In-vivo. Rats were arbitrarily separated into five groups as control, sodium fluoride-treated (200 ppm kg -1), vitamin C -as a positive control, and FA co-administered groups with 10 mg kg -1 and 20 mg kg -1 body weight for 56 days. In the present investigation, we measured antioxidant enzymes, superoxide dismutase, catalase, and lactate dehydrogenase by electrozymographic and spectrophotometric methods. Biochemical assessment of TBARS, conjugated diene, and different serum biomarkers was done for liver and kidney functionality tests. In-silico. An in-silico study was conducted through a molecular docking experiment to evaluate the binding potentiality of FA by employing AutoDock Vina [version 1.5.6] to overcome the abnormality in the activities of catalase, and superoxide dismutase in NaF promoted toxicity of hepatorenal system. In-vitro. An in vitro biochemical experiment was conducted to support the in-silico study. RESULTS Superoxide dismutase and catalase were decreased in the intoxicated rat. Ferulic acid (FA) as an antioxidant remarkably defended the NaF-mediated deterioration of the antioxidative status in the hepatorenal system, lowering lipid peroxidation products, malondialdehyde, and conjugated diene. Serum biomarkers, ALT, AST, ALP, urea, and creatinine increased in the intoxicated group than in control. Ferulic acid significantly neutralized the ill effects of NaF on serum lipid profile. In-silico analysis hypothesized the strong interaction of FA with the active side of catalase and superoxide dismutase that prevented the binding of NaF at the active site of these mentioned enzymes and this was further validated by in-vitro assay. CONCLUSION However, FA modulates free radical generation and protected these metabolic organs against sodium fluoride-induced injury.
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Affiliation(s)
- Seba Das
- Centre for Life Sciences, Vidyasagar University, Midnapore 721102, West Bengal, India
| | - Arindam Dey
- Dept. of Biomedical Laboratory Science and Management and Clinical Nutrition and Dietetics Division (UGC Innovative Department), Vidyasagar University, Midnapore 721102, West Bengal, India
| | - Shilpa Maji
- Dept. of Biomedical Laboratory Science and Management and Clinical Nutrition and Dietetics Division (UGC Innovative Department), Vidyasagar University, Midnapore 721102, West Bengal, India
| | - Asim Sahoo
- Centre for Life Sciences, Vidyasagar University, Midnapore 721102, West Bengal, India
| | - Ananya Barman
- Dept. of Biomedical Laboratory Science and Management and Clinical Nutrition and Dietetics Division (UGC Innovative Department), Vidyasagar University, Midnapore 721102, West Bengal, India
| | - Sourav Santra
- Dept. of Microbiology, Vidyasagar University, Midnapore 721102, West Bengal, India
| | - Subhadeep Mondal
- Centre for Life Sciences, Vidyasagar University, Midnapore 721102, West Bengal, India
| | | | - Sandip Chattopadhyay
- Centre for Life Sciences, Vidyasagar University, Midnapore 721102, West Bengal, India; Dept. of Biomedical Laboratory Science and Management and Clinical Nutrition and Dietetics Division (UGC Innovative Department), Vidyasagar University, Midnapore 721102, West Bengal, India.
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Wang S, Ning H, Hua L, Ren F, Chen L, Ma Z, Li R, Ge Y, Yin Z. Exposure to fluoride induces apoptosis in the liver, kidney, and heart of Xenopus laevis by regulating the Caspase-8/3 signaling pathway. Acta Histochem 2023; 125:151999. [PMID: 36905872 DOI: 10.1016/j.acthis.2023.151999] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 01/03/2023] [Accepted: 01/05/2023] [Indexed: 03/11/2023]
Abstract
Fluoride compounds are abundant and widely distributed in the environment at various concentrations, which can seriously injure the human body. In this study, we aim to evaluate the effects of excessive fluoride exposure on the liver, kidney, and heart tissues of healthy female Xenopus laevis by administering NaF (0, 100, and 200 mg/L) in drinking water for 90 days. The expression level of procaspase-8, cleaved-caspase-8, and procaspase-3 proteins were determined by Western blot. Compared with the control group, the group exposed to NaF exhibited expression levels of procaspase-8, cleaved-caspase-8, and procaspase-3 proteins that were considerably upregulated at a concentration of 200 mg/L in the liver and kidney. The cleaved-caspase-8 protein expression in the group exposed to a high concentration of NaF was lower than that in the control group in heart. Histopathological results by hematoxylin and eosin staining showed that excessive NaF exposure caused necrosis of hepatocytes and vacuolization degeneration. Granular degeneration and necrosis in renal tubular epithelial cells were also observed. Moreover, hypertrophy of myocardial cells, atrophy of myocardial fibers and disorder of myocardial fibers were detected. These results demonstrated that NaF-induced apoptosis and the mediated death receptor pathway activation ultimately damaged the liver and kidney tissues. This finding offers a fresh perspective on the effects of F-induced apoptosis in X. laevis.
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Affiliation(s)
- Siting Wang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan, 453003, PR China
| | - Hongmei Ning
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan, 453003, PR China
| | - Liushuai Hua
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan, 453003, PR China
| | - Fei Ren
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan, 453003, PR China
| | - Lingli Chen
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan, 453003, PR China
| | - Zhisheng Ma
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan, 453003, PR China
| | - Rongbo Li
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan, 453003, PR China
| | - Yaming Ge
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan, 453003, PR China
| | - Zhihong Yin
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan, 453003, PR China.
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Fernández-Mateos P, Cano-Barquilla P, Jiménez-Ortega V, Virto L, Pérez-Miguelsanz J, Esquifino AI. Effect of Melatonin on Redox Enzymes Daily Gene Expression in Perirenal and Subcutaneous Adipose Tissue of a Diet Induced Obesity Model. Int J Mol Sci 2023; 24:ijms24020960. [PMID: 36674472 PMCID: PMC9863119 DOI: 10.3390/ijms24020960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/26/2022] [Accepted: 12/28/2022] [Indexed: 01/06/2023] Open
Abstract
Increased adiposity is related to oxidative stress, inflammation and metabolic disorders. Our group has shown that melatonin totally or partially prevents the alterations that obesity causes in some neuroendocrine and inflammatory parameters indicative of oxidative stress. This study analyzes the effects of HFD on the relative gene expression of several redox balance enzymes on adult male Wistar rats subcutaneous (SAT) and perirenal adipose tissue (PRAT) and the possible preventive role of melatonin. Three experimental groups were established: control, high fat diet (HFD) and HFD plus 25 μg/mL melatonin in tap water. After 11 weeks, animals were sacrificed at 09:00 a.m. and 01:00 a.m. and PRAT and SAT were collected for selected redox enzymes qRT-PCR. Differential expression of redox enzyme genes, except for SODMn, GPx and catalase, was observed in the control group as a function of fat depot. HFD causes the disappearance of the temporal changes in the expression of the genes studied in the two fat depots analyzed. PRAT seems to be more sensitive than SAT to increased oxidative stress induced by obesity. Melatonin combined with a HFD intake, partially prevents the effects of the HFD on the gene expression of the redox enzymes. According to our results, melatonin selectively prevents changes in the relative gene expression of redox enzymes in PRAT and SAT of animals fed an HFD.
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Affiliation(s)
- Pilar Fernández-Mateos
- Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28003 Madrid, Spain
- Department of Cellular Biology, Faculty of Medicine, Complutense University, 28040 Madrid, Spain
- Correspondence: (P.F.-M.); (A.I.E.); Tel.: +34-913947256 (P.F.-M.); +34-913947189 (A.I.E.)
| | - Pilar Cano-Barquilla
- Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28003 Madrid, Spain
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Complutense University, 28040 Madrid, Spain
| | - Vanesa Jiménez-Ortega
- Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28003 Madrid, Spain
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Complutense University, 28040 Madrid, Spain
| | - Leire Virto
- Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28003 Madrid, Spain
- Department of Anatomy and Embryology, Faculty of Optics, Complutense University, 28037 Madrid, Spain
| | - Juliana Pérez-Miguelsanz
- Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28003 Madrid, Spain
- Department of Anatomy and Embryology, Faculty of Medicine, Complutense University, 28040 Madrid, Spain
| | - Ana I. Esquifino
- Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28003 Madrid, Spain
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Complutense University, 28040 Madrid, Spain
- Correspondence: (P.F.-M.); (A.I.E.); Tel.: +34-913947256 (P.F.-M.); +34-913947189 (A.I.E.)
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Knowledge Level and Consumption Behavior of Native Plants, Meats, and Drinking Waters with High Fluoride Concentrations about the Relation to the Potential Health Risk of Fluoride in Lamphun Province Thailand: A Case Study. SUSTAINABILITY 2022. [DOI: 10.3390/su14148701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Fluoride exposure from natural, agricultural, and industrial sources has harmed people living in fluoride-affected areas. Fluoride accumulates in the human body after being exposed to it through the food chain. The population consisted of 371 community health volunteers who were surveyed and chosen based on personal fluoride information. Only 39 residents were chosen to be interviewed and take part in the trial, which involved drinking fluoride-containing groundwater (>1.5 part per million: ppm) and urine testing that revealed urine fluoride level (>0.7 ppm). In addition, 47 biological samples and eight commercially bottled water specimens were examined. The information was gathered in four ways: (1) a questionnaire-based survey of fluoride knowledge, (2) food consumption behavior with locally grown vegetables, fruits, poultry, and meat, and commercially bottled water produced by groundwater in fluoride-affected areas, (3) a semi-food frequency questionnaire, and (4) fluoride content measurements using an ion-selective electrode. According to the analyses, the participants ranged in age from 51 to 60 years, with approximately 60.38% of them female and born and raised in polluted areas. The majority of subjects had a low level of fluoride knowledge (65.23%). The respondents’ primary source of drinking water (100.00%) was commercially bottled water; they chewed camellia sinensis 11.56% of the time (1 to 5 years) and they drank tea 9.16% of the time (during 1 to 5 years). Sus scrofa domesticus was responsible for the intake of vegetables and fruits, whereas Brassica chinensis, Jusl var para-chinensis (Bailey), and Tsen and Lee were responsible for the intake of poultry and animal flesh. They were all purchased at a local farm. The hazard quotient was greater than one, and the fluoride concentration (ppm) ranged between 75.00% (0.29–5.20), 57.14% (0.01–0.46), 88.89% (0.07–0.91), 100.00% (0.43–3.07), 100.00% (0.58–0.77), 42.86% (0.12–0.62 ppm.), 60.00% (0.11–1.44), and 33.33% (0.10–0.80) in drinking water, fruit, young and mature plants. Fluoride ingestion may pose a health concern. Under the 95th percentile condition, 74.47% consumed water with a high fluoride level, vegetables and fruits, and poultry and meats.
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Liu S, Zhao J, Tian WS, Wang JC, Wang HW, Zhou BH. Estrogen deficiency aggravates fluorine ion-induced renal fibrosis via the TGF-β1/Smad signaling pathway in rats. Toxicol Lett 2022; 362:26-37. [DOI: 10.1016/j.toxlet.2022.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 03/21/2022] [Accepted: 04/20/2022] [Indexed: 11/30/2022]
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Angwa LM, Jiang Y, Pei J, Sun D. Antioxidant Phytochemicals for the Prevention of Fluoride-Induced Oxidative Stress and Apoptosis: a Review. Biol Trace Elem Res 2022; 200:1418-1441. [PMID: 34003450 DOI: 10.1007/s12011-021-02729-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 04/16/2021] [Indexed: 02/07/2023]
Abstract
Fluorosis is a major public health problem globally. The non-availability of specific treatment and the irreversible nature of dental and skeletal lesions poses a challenge in the management of fluorosis. Oxidative stress is known to be one of the most important mechanisms of fluoride toxicity. Fluoride promotes the accumulation of reactive oxygen species by inhibiting the activity of antioxidant enzymes, resulting in the excessive production of reactive oxygen species at the cellular level which further leads to activation of cell death processes such as apoptosis. Phytochemicals that act as antioxidants have the potential to protect cells from oxidative stress. Evidence confirms that clinical symptoms of fluorosis can be mitigated to some extent or prevented by long-term intake of antioxidants and plant products. The primary purpose of this review is to examine recent findings that focus on the amelioration of fluoride-induced oxidative stress and apoptosis by natural and synthetic phytochemicals and their molecular mechanisms of action.
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Affiliation(s)
- Linet M Angwa
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, 150081, China
- Department of Clinical Medicine, Kabarak University, Nakuru, 20157, Kenya
| | - Yuting Jiang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, 150081, China
| | - Junrui Pei
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, 150081, China
| | - Dianjun Sun
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, 150081, China.
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Xin J, Sun N, Wang H, Ma H, Wu B, Li L, Wang Y, Huang H, Zeng D, Bai X, Chen A, Gong S, Ni X, Bai Y. Preventive effects of Lactobacillus johnsonii on the renal injury of mice induced by high fluoride exposure: Insights from colonic microbiota and co-occurrence network analysis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 228:113006. [PMID: 34826728 DOI: 10.1016/j.ecoenv.2021.113006] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 11/15/2021] [Accepted: 11/16/2021] [Indexed: 06/13/2023]
Abstract
Fluoride (F) exposure was widely reported to be associated with renal diseases. Since absorbed F enters the organism from drinking water mostly through the gastrointestinal tract, investigating changes of gut microbes may have profound implications for the prevention of chronic F exposure because increasing evidence supported the existence of the gut-kidney axis. In the present study, we aimed to explore the potential positive effects of probiotics on high F exposure-induced renal lesions and dysfunction in mice by the modulation of the colonic microbiota. Mice were fed with normal (Ctrl group) or sodium-fluoride (F and Prob groups; 100 mg/L sodium fluoride (NaF)) drinking water with or without Lactobaillus johnsonii BS15, a probiotic strain proven to be preventive for F exposure. Mice fed with sodium-fluoride drinking water alone exhibited renal tissue damages, decreased the renal antioxidant capability and dysfunction. In contrast, L. johnsonii BS15 reversed these F-induced renal changes. 16S rRNA gene sequencing shows that L. johnsonii BS15 alleviated the increased community diversity (Shannon diversity) and richness index (number of observed features) as well as the distured structure of colon microbiota in F-exposed mice. A total of 13 OTUs with increased relative abundance were identified as the keystone OTUs in F-exposed mice based on the analysis of degree of co-occurrence and abundance of OTUs. Moreover, Spearman's rank correlation shows that the 13 keystone OTUs had negative effect on renal health and intestinal integrity. L. johnsonii BS15 reversed four of keystone OTUs (OTU 5, OTU 794, OTU 1035, and OTU 868) changes which might be related to the underlying protected mechanism of L. johnsonii BS15 against F-induced renal damages.
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Affiliation(s)
- Jinge Xin
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Institute of Gastroenterology of Guangdong Province, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ning Sun
- Animal Microecology Institute, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Hesong Wang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Institute of Gastroenterology of Guangdong Province, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangzhou Beneco biotechnology Co. Ltd., Guangzhou, China
| | - Hailin Ma
- Plateau Brain Science Research Center, Tibet University, Lhasa 850012, China; Plateau Brain Science Research Center, South China Normal University, Guangzhou 510631, China
| | - Bangyuan Wu
- College of Life Sciences, China West Normal University,Nanchong,Sichuan, China
| | - Lianxin Li
- Animal Microecology Institute, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yanyan Wang
- Animal Microecology Institute, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Haonan Huang
- Animal Microecology Institute, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Dong Zeng
- Animal Microecology Institute, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Xiuquan Bai
- Guangzhou Beneco biotechnology Co. Ltd., Guangzhou, China
| | - Ali Chen
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Shenhai Gong
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Xueqin Ni
- Animal Microecology Institute, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China.
| | - Yang Bai
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Institute of Gastroenterology of Guangdong Province, Nanfang Hospital, Southern Medical University, Guangzhou, China.
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Meera N, Divya MK, Silpa P, Pareeth CM, Raghavamenon AC, Babu TD. Amelioration of sodium fluoride induced oxidative stress by Cynometra travancorica Bedd in mice. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2021; 19:243-249. [PMID: 34798691 DOI: 10.1515/jcim-2021-0120] [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: 03/17/2021] [Accepted: 11/03/2021] [Indexed: 01/23/2023]
Abstract
OBJECTIVES Cynometra travancorica, endemic to Western Ghats of India is pharmacologically similar to Saraca asoca and occasionally used as substitute in a well-known Ayurvedic uterine tonic Asokarishta. S. asoca possess various biological properties, but there are no reports on C. travancorica. The present study evaluated the pharmacological properties of C. travancorica and its efficacy in attenuating the sodium fluoride (NaF) induced oxidative stress in mice. METHODS Antioxidant potential of methanolic extract of C. travancorica (CTE) stem bark was evaluated using DPPH, superoxide radical scavenging and total antioxidant assays. The effect of CTE on mitigating NaF deteriorated redox status in the liver tissue of mice was evaluated. Functional groups in CTE were analyzed by FTIR analysis. RESULTS CTE effectively scavenged the free radicals in in vitro condition. CTE could augment catalase (46.6%), superoxide dismutase (53.8%) activities and GSH level (48.1%) against NaF induced decline in the liver tissue of mice. The peroxidation of lipids was found to be decreased by 44.9% and tissue damage abated as inferred by histopathology. FTIR analysis revealed the presence of biologically active functional groups in CTE. CONCLUSIONS The study revealed the ameliorative effect of C. travancorica against NaF induced deleterious effect in experimental animals by its potent antioxidant potential.
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Affiliation(s)
- Nair Meera
- Department of Biochemistry, Amala Cancer Research Centre, Kerala, India
| | - Menon K Divya
- Department of Biochemistry, Amala Cancer Research Centre, Kerala, India
| | - Prabha Silpa
- Department of Biochemistry, Amala Cancer Research Centre, Kerala, India
| | | | | | - Thekkekara D Babu
- Department of Biochemistry, Amala Cancer Research Centre, Kerala, India
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11
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Wang D, Cao L, Pan S, Wang G, Wang L, Cao N, Hao X. Sirt3-mediated mitochondrial dysfunction is involved in fluoride-induced cognitive deficits. Food Chem Toxicol 2021; 158:112665. [PMID: 34780879 DOI: 10.1016/j.fct.2021.112665] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 10/17/2021] [Accepted: 11/04/2021] [Indexed: 01/11/2023]
Abstract
Excessive fluoride is capable of inducing cognitive deficits, but the mechanisms remain elusive. This study aimed to investigate the effects and underlying mechanisms of fluoride on mitochondrial dysfunction and neurobiological alterations, as well as cognitive impairment. C57BL/6 mice were orally administered 25, 50, and 100 mg/L NaF for 90 days. Cultured human neuroblastoma SH-SY5Y cells were exposed to NaF (110 mg/L) for 24 h in the presence or absence of Sirt3 overexpression. The results demonstrated that chronic exposure to high fluoride induced cognitive deficits and neural/synaptic injury in mice. Fluoride reduced mitochondrial antioxidant enzyme activities and elevated SOD2 acetylation by downregulating Sirt3 expression in the brains of mice and NaF-treated SH-SY5Y cells. Moreover, fluoride lowered mtDNA transcription and induced mitochondrial dysfunction along with increased FoxO3A acetylation in the brains of mice and NaF-treated SH-SY5Y cells. Subsequent experiments revealed that overexpression of Sirt3 significantly attenuated the adverse effects of fluoride on radical scavenging capabilities and mtDNA transcription, as well as mitochondrial function in SH-SY5Y cells. These results suggest that chronic long-term fluoride exposure evokes neural/synaptic injury and cognitive impairment through mitochondrial dysfunction and its associated oxidative stress, which is, at least partly, mediated by Sirt3 inhibition in the mouse brain.
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Affiliation(s)
- Dongmei Wang
- School of Basic Medical Sciences, Henan University of Science and Technology, Henan, Luoyang, 471003, China.
| | - Luyang Cao
- School of Basic Medical Sciences, Henan University of Science and Technology, Henan, Luoyang, 471003, China
| | - Shunji Pan
- School of Basic Medical Sciences, Henan University of Science and Technology, Henan, Luoyang, 471003, China
| | - Gang Wang
- School of Basic Medical Sciences, Henan University of Science and Technology, Henan, Luoyang, 471003, China
| | - Lewei Wang
- School of Basic Medical Sciences, Henan University of Science and Technology, Henan, Luoyang, 471003, China
| | - Ningyao Cao
- School of Basic Medical Sciences, Henan University of Science and Technology, Henan, Luoyang, 471003, China
| | - Xueqin Hao
- School of Basic Medical Sciences, Henan University of Science and Technology, Henan, Luoyang, 471003, China
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12
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Urut F, Dede S, Yuksek V, Cetin S, Usta A, Taspinar M. In Vitro Evaluation of the Apoptotic, Autophagic, and Necrotic Molecular Pathways of Fluoride. Biol Trace Elem Res 2021; 199:3700-3706. [PMID: 33200396 DOI: 10.1007/s12011-020-02491-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 11/09/2020] [Indexed: 01/16/2023]
Abstract
Prolonged exposure to high doses of fluoride causes chronic poisoning called fluorosis, which affects many tissues and causes serious health problems. This study was planned to investigate the apoptotic, autophagic, and necrotic molecular pathways of fluoride. Sodium fluoride (NaF) was administered to normal rat kidney epithelial (NRK-52E) cells. The NaF IC50 value was determined using the MTT assay. The expression of the genes in the autophagic, apoptotic, and necrotic pathways was determined by real-time PCR. It was determined that there were significant changes in NaF-induced molecular pathways depending on the time. There were no increases in apoptotic and necrotic pathway markers except for Atg3, an autophagy gene, at the 3rd and the 12th hours. However, there was an induction in all cell death signaling pathways at 24 h. The molecular mechanisms demonstrated NaF-induced cellular death in the NRK-52E cell line. It was concluded that these molecular mechanisms were activated with NaF, and different mechanisms accelerated the cellular death at the 24th hour.
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Affiliation(s)
- F Urut
- Biochemistry Department, Faculty of Veterinary Medicine, Van Yuzuncu Yil University, 65090, Van, Turkey
| | - S Dede
- Biochemistry Department, Faculty of Veterinary Medicine, Van Yuzuncu Yil University, 65090, Van, Turkey.
| | - V Yuksek
- Özalp Regional High School, Van Yuzuncu Yil University, 65090, Van, Turkey
| | - S Cetin
- Biochemistry Department, Faculty of Veterinary Medicine, Van Yuzuncu Yil University, 65090, Van, Turkey
| | - A Usta
- Chemistry Department, Science Faculty, Van Yuzuncu Yil University, 65090, Van, Turkey
| | - M Taspinar
- Medical Biology Department, Medical Faculty, Aksaray University, Aksaray, Turkey
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13
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Wei Y, Zhu J, Wetzstein SA. Plasma and water fluoride levels and hyperuricemia among adolescents: A cross-sectional study of a nationally representative sample of the United States for 2013-2016. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 208:111670. [PMID: 33396180 DOI: 10.1016/j.ecoenv.2020.111670] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 11/07/2020] [Accepted: 11/13/2020] [Indexed: 06/12/2023]
Abstract
Exposure to excessive fluoride has been associated with a number of adverse health outcomes; however, there is a lack of evidence on the relation between fluoride exposure and serum uric acid levels, especially in human populations. The present study examined a potential relationship between fluoride exposure, measured as both plasma and water fluoride concentrations, and uric acid levels in an adolescent population. A nationally representative subsample of 1933 adolescents, aged 12-19 years, in the 2013-2016 National Health and Nutrition Examination Survey was analyzed for the association of fluoride concentrations with serum uric acid levels using multivariate general linear and logistic regression models, adjusting for potential confounders. Since uric acid levels change during development, hyperuricemia was defined in this study as over the mean plus one standard deviation for each sex and age group of adolescents. Of the study participants, 276 adolescents (weighted prevalence, 16.56%) had hyperuricemia. A significant and dose-dependent increase in prevalence of hyperuricemia was seen among the participants cross increasing quartiles of plasma fluoride (p-trend = 0.0017). After adjusting for potential confounders, we found that adolescents in the higher quartiles of plasma fluoride (≥0.32 µmol/L) and in the highest quartile of water fluoride (≥0.73 mg/L) had significantly increased odds of hyperuricemia compared with those in the lowest quartile. A 1.95-fold increased odds (95% CI: 1.37, 2.77) of hyperuricemia was also observed when analyzing plasma fluoride concentrations as continuous variable. A general linear model revealed that a 1 µmol/L increase in ln-plasma fluoride was associated with a 0.212 mg/dL (p < 0.0001) increased serum uric acid level. Furthermore, a positive relationship was observed between water and plasma fluoride concentrations (β = 0.1907; p < 0.0001). Our study demonstrates a potential relation between fluoride exposure and hyperuricemia in adolescents. Further studies are warranted to overcome the limitations of this study to examine the impact of long-term exposure to low levels of fluoride during development on hyperuricemia and its related health outcomes.
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Affiliation(s)
- Yudan Wei
- Department of Community Medicine, Mercer University School of Medicine, Macon, GA, USA.
| | - Jianmin Zhu
- Department of Mathematics and Computer Science, Fort Valley State University, Fort Valley, GA, USA
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14
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Erkan M, Aydin Y, Orta Yilmaz B, Yildizbayrak N. Protective effects of vitamin C against fluoride toxicity. Toxicology 2021. [DOI: 10.1016/b978-0-12-819092-0.00043-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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15
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Efe U, Dede S, Yüksek V, Çetin S. Apoptotic and Oxidative Mechanisms in Liver and Kidney Tissues of Sheep with Fluorosis. Biol Trace Elem Res 2021; 199:136-141. [PMID: 32277396 DOI: 10.1007/s12011-020-02121-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 03/18/2020] [Indexed: 01/03/2023]
Abstract
This study was planned to determine the molecular basis and causes of damage to the kidney and the liver, which are the most affected tissues in sheep exposed to chronic fluoride. For this purpose, liver and kidney tissues were obtained from sheep with signs of fluorosis in the age range of 4-6 years. The control group consisted of clinically healthy sheep without fluorosis. The apoptotic and oxidative genes expression of target genes was determined using the real qRT-PCR method. According to the control gene (Gapdh) that was detected that in the liver, the apoptotic genes caspase-8, caspase-9, and Bim increased and caspase-3, Bcl-2, and Bak decreased, while in the kidney, caspase-3 and Bax and caspase-8, Bcl-2, Bcl2l-1, Bim, and Bak decreased. According to the 2-ΔCt values of the oxidative stress genes, it was determined that Cygb, Gstp1, and Ncf1 genes increased significantly in the fluorosis group and Gpx1, sod1, and sod2 genes decreased significantly. In the kidney tissue, Cygb and Gpx1 increased in the fluorosis group, while sod1, sod2, Gstp1, Ncf1 and Ccs, and Nos2 were found to decrease significantly. As a result, it was shown that apoptosis and oxidative mechanisms are activated in the liver and the kidney tissues of sheep with fluorosis and these parameters have an important role in understanding the molecular basis of tissue damage in fluorosis.
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Affiliation(s)
- Uğur Efe
- Faculty of Medicine, Training Hospital, Van Yuzuncu Yil University, Van, Turkey
| | - Semiha Dede
- Faculty of Veterinary Medicine, Biochemistry Department, Van Yuzuncu Yil University, Van, Turkey.
| | - Veysel Yüksek
- Ozalp Regional High School, Van Yuzuncu Yil University, Van, Turkey
| | - Sedat Çetin
- Faculty of Veterinary Medicine, Biochemistry Department, Van Yuzuncu Yil University, Van, Turkey
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Zeng XX, Deng J, Xiang J, Dong YT, Cao K, Liu XH, Chen D, Ran LY, Yang Y, Guan ZZ. Protections against toxicity in the brains of rat with chronic fluorosis and primary neurons exposed to fluoride by resveratrol involves nicotinic acetylcholine receptors. J Trace Elem Med Biol 2020; 60:126475. [PMID: 32142957 DOI: 10.1016/j.jtemb.2020.126475] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 01/28/2020] [Accepted: 02/08/2020] [Indexed: 01/08/2023]
Abstract
Protection of Resveratrol (RSV) against the neurotoxicity induced by high level of fluoride was investigated. Sprague-Dawley (SD) rats and their offspring, as well as cultures of primary neurons were divided randomly into four groups: untreated (control); treated with 50 mg RSV/kg/ (once daily by gavage) or (20 M in the cultured medium); exposed to 50 ppm F- in drinking water or 4 mmol/l in the cultured medium; and exposed to fluoride then RSV as above. The adult rats were treated for 7 months and the offspring sacrificed at 28 days of age; the cultured neurons for 48 h. For general characterization, dental fluorosis was assessed and the fluoride content of the urine measured (by fluoride-electrode) in the rates and the survival of cultured neurons monitored with the CCK-8 test. The spatial learning and memory of rats were assessed with the Morris water maze test. The levels of α7 and α4 nicotinic acetylcholine receptors (nAChRs) were quantified by Western blotting; and the activities of superoxide dismutase (SOD) and catalase (CAT), and the levels of malondialdehyde (MDA) and H2O2 assayed biochemically. The results showed that chronic fluorosis resulted in the impaired learning and memory in rats and their offspring, and more oxidative stress in both rat brains and cultured neurons, which may be associated the lower levels of α7 and α4 nAChR subunits. Interestingly, RSV attenuated all of these toxic effects by fluorosis, indicating that protection against the neurotoxicity of fluoride by RSV might be in mechanism involved enhancing the expressions of these nAChRs.
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Affiliation(s)
- Xiao-Xiao Zeng
- Departments of Pathology at Guizhou Medical University and the Affiliated Hospital of Guizhou Medical University, PR China; Key Laboratory of Endemic and Ethnic Diseases, (Guizhou Medical University) of the Ministry of Education, PR China; Provincial Key Laboratory of Medical Molecular Biology, Guiyang, 550004, Guizhou, PR China
| | - Jie Deng
- Key Laboratory of Endemic and Ethnic Diseases, (Guizhou Medical University) of the Ministry of Education, PR China; Provincial Key Laboratory of Medical Molecular Biology, Guiyang, 550004, Guizhou, PR China
| | - Jie Xiang
- Departments of Pathology at Guizhou Medical University and the Affiliated Hospital of Guizhou Medical University, PR China; Key Laboratory of Endemic and Ethnic Diseases, (Guizhou Medical University) of the Ministry of Education, PR China
| | - Yang-Ting Dong
- Key Laboratory of Endemic and Ethnic Diseases, (Guizhou Medical University) of the Ministry of Education, PR China; Provincial Key Laboratory of Medical Molecular Biology, Guiyang, 550004, Guizhou, PR China
| | - Kun Cao
- Departments of Pathology at Guizhou Medical University and the Affiliated Hospital of Guizhou Medical University, PR China; Key Laboratory of Endemic and Ethnic Diseases, (Guizhou Medical University) of the Ministry of Education, PR China
| | - Xian-Hong Liu
- Key Laboratory of Endemic and Ethnic Diseases, (Guizhou Medical University) of the Ministry of Education, PR China; Provincial Key Laboratory of Medical Molecular Biology, Guiyang, 550004, Guizhou, PR China
| | - Dan Chen
- Departments of Pathology at Guizhou Medical University and the Affiliated Hospital of Guizhou Medical University, PR China; Key Laboratory of Endemic and Ethnic Diseases, (Guizhou Medical University) of the Ministry of Education, PR China
| | - Long-Yan Ran
- Departments of Pathology at Guizhou Medical University and the Affiliated Hospital of Guizhou Medical University, PR China; Key Laboratory of Endemic and Ethnic Diseases, (Guizhou Medical University) of the Ministry of Education, PR China
| | - Ye Yang
- Key Laboratory of Endemic and Ethnic Diseases, (Guizhou Medical University) of the Ministry of Education, PR China; Provincial Key Laboratory of Medical Molecular Biology, Guiyang, 550004, Guizhou, PR China
| | - Zhi-Zhong Guan
- Departments of Pathology at Guizhou Medical University and the Affiliated Hospital of Guizhou Medical University, PR China; Key Laboratory of Endemic and Ethnic Diseases, (Guizhou Medical University) of the Ministry of Education, PR China; Provincial Key Laboratory of Medical Molecular Biology, Guiyang, 550004, Guizhou, PR China.
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17
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Packer M. Role of Impaired Nutrient and Oxygen Deprivation Signaling and Deficient Autophagic Flux in Diabetic CKD Development: Implications for Understanding the Effects of Sodium-Glucose Cotransporter 2-Inhibitors. J Am Soc Nephrol 2020; 31:907-919. [PMID: 32276962 DOI: 10.1681/asn.2020010010] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Growing evidence indicates that oxidative and endoplasmic reticular stress, which trigger changes in ion channels and inflammatory pathways that may undermine cellular homeostasis and survival, are critical determinants of injury in the diabetic kidney. Cells are normally able to mitigate these cellular stresses by maintaining high levels of autophagy, an intracellular lysosome-dependent degradative pathway that clears the cytoplasm of dysfunctional organelles. However, the capacity for autophagy in both podocytes and renal tubular cells is markedly impaired in type 2 diabetes, and this deficiency contributes importantly to the intensity of renal injury. The primary drivers of autophagy in states of nutrient and oxygen deprivation-sirtuin-1 (SIRT1), AMP-activated protein kinase (AMPK), and hypoxia-inducible factors (HIF-1α and HIF-2α)-can exert renoprotective effects by promoting autophagic flux and by exerting direct effects on sodium transport and inflammasome activation. Type 2 diabetes is characterized by marked suppression of SIRT1 and AMPK, leading to a diminution in autophagic flux in glomerular podocytes and renal tubules and markedly increasing their susceptibility to renal injury. Importantly, because insulin acts to depress autophagic flux, these derangements in nutrient deprivation signaling are not ameliorated by antihyperglycemic drugs that enhance insulin secretion or signaling. Metformin is an established AMPK agonist that can promote autophagy, but its effects on the course of CKD have been demonstrated only in the experimental setting. In contrast, the effects of sodium-glucose cotransporter-2 (SGLT2) inhibitors may be related primarily to enhanced SIRT1 and HIF-2α signaling; this can explain the effects of SGLT2 inhibitors to promote ketonemia and erythrocytosis and potentially underlies their actions to increase autophagy and mute inflammation in the diabetic kidney. These distinctions may contribute importantly to the consistent benefit of SGLT2 inhibitors to slow the deterioration in glomerular function and reduce the risk of ESKD in large-scale randomized clinical trials of patients with type 2 diabetes.
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Affiliation(s)
- Milton Packer
- Baylor Heart and Vascular Institute, Baylor University Medical Center, Dallas, Texas .,Imperial College, London, United Kingdom
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Copper Induces Oxidative Stress and Apoptosis in the Mouse Liver. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:1359164. [PMID: 32411316 PMCID: PMC7201649 DOI: 10.1155/2020/1359164] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 11/24/2019] [Accepted: 12/13/2019] [Indexed: 12/15/2022]
Abstract
Copper (Cu) is an essential trace element involved in the normal physiological processes of animals. However, excessive exposure to Cu can produce numerous detrimental impacts. The aim of this study was to investigate the effects of Cu on oxidative stress and apoptosis as well as their relationship in the mouse liver. Four-week-old ICR mice (n = 240) were randomly assigned to different Cu (Cu2+-CuSO4) treatment groups (0, 4, 8, and 16 mg/kg) for periods of 21 and 42 days. The high doses of Cu exposure could induce oxidative stress, by increasing the levels of reactive oxygen species (ROS) and protein carbonyls (PC) and decreasing the activities of antisuperoxide anion (ASA) and antihydroxyl radical (AHR) and content of glutathione (GSH), as well as activities and mRNA expression levels of superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GSH-Px). Moreover, high doses of Cu exposure induced hepatic apoptosis via the mitochondrial apoptotic pathway, as characterized by the depolarization of mitochondrial membrane potential (MMP); significantly increased mRNA and protein expression levels of cytosolic cytochrome (Cyt c), apoptosis-inducing factor (AIF), endonuclease G (Endo G), apoptosis protease-activating factor-1 (Apaf-1), cleaved caspase-9, cleaved caspase-3, cleaved PARP, Bcl-2 antagonist killer (Bak), Bcl-2-associated X protein (Bax), and Bcl-2-interacting mediator of cell death (Bim); and decreased mRNA and protein expression levels of B-cell lymphoma-2 (Bcl-2) and Bcl-extra-large (Bcl-xL). Furthermore, the activation of the tumor necrosis factor receptor-1 (TNF-R1) signaling pathway was involved in Cu-induced apoptosis, as characterized by the significantly increased mRNA and protein expression levels of TNF-R1, Fas-associated death domain (FADD), TNFR-associated death domain (TRADD), and cleaved caspase-8. These results indicated that exposure to excess Cu could cause oxidative stress triggered by ROS overproduction and diminished antioxidant function, which in turn promoted hepatic apoptosis via mitochondrial apoptosis and that the TNF-R1 signaling pathway was also involved in the Cu-induced apoptosis.
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Exposure of Fluoride with Streptozotocin-Induced Diabetes Aggravates Testicular Damage and Spermatozoa Parameters in Mice. J Toxicol 2019; 2019:5269380. [PMID: 31885555 PMCID: PMC6915027 DOI: 10.1155/2019/5269380] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 08/24/2019] [Indexed: 12/14/2022] Open
Abstract
Diabetes mellitus is the most common chronic disease worldwide that causes numerous complications, including male infertility. The prevalence of DM is 451 million people and estimated that would increase to 693 million in 2045. Fluorosis caused by drinking water contaminated with inorganic fluoride is a public health problem in many areas around the world. Previous studies have shown that fluoride exposure damages the male reproductive function. This study aimed to evaluate the fluoride sub-chronic exposure on the spermatozoa function in streptozotocin (STZ)-induced diabetic mice. After confirming diabetes by measuring blood glucose levels, the male mice received 45.2 ppm of fluoride added or deionized water. We evaluated several parameters in diabetic mice exposed to fluoride: standard quality analysis, the mitochondrial transmembrane potential (ψm), the caspase activity in spermatozoa, urinary fluoride excretion, and histological evaluation in the testes. After 60 days of fluoride-exposure, diabetic mice, significantly decreased sperm quality (motility, viability, and concentration). Spermatozoa from fluoride-exposure in diabetic mice presented a significant decrease in ψm and a significant increase in activity caspase 3/7. Urinary fluoride excretion was decreased in diabetic mice exposed to fluoride. Subchronic fluoride exposure of mice with STZ-induced diabetes aggravated testicular damage and the spermatozoa function.
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20
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Gao J, Wang Y, Xu G, Wei J, Chang K, Tian X, Liu M, Yan X, Huo M, Song G. Selenium attenuates apoptosis and p-AMPK expressions in fluoride-induced NRK-52E cells. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:15685-15697. [PMID: 30949948 DOI: 10.1007/s11356-019-04855-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 03/13/2019] [Indexed: 06/09/2023]
Abstract
Fluoride is widely distributed in the environment, and excessive fluoride intake can induce cytotoxicity, DNA damage, and cell cycle changes in many tissues and organs, including the kidney. Accumulating evidence demonstrates that selenium (Se) administration ameliorates sodium fluoride (NaF)-induced kidney damage. However, the potentially beneficial effects of Se against NaF-induced cytotoxicity of the kidney and the underlying molecular mechanisms of this protection are not fully understood. At present, in this study, the normal rat kidney cell (NRK-52E) was used to investigate the potentially protective mechanism of Se against NaF-induced apoptosis, by using the methods of pathology, colorimetric 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, flow cytometry, and Western blot. The experiment was designed with a control group, two NaF-treated groups (NaF, 5, 20 mg/L), two sodium selenite-treated groups (Na2SeO3, 17.1, 34.2 μg/L), and four Se + NaF-treated groups (Na2SeO3, 17.1, 34.2 μg/L; NaF, 5, 20 mg/L). The results indicate that selenium can attenuate apoptosis and AMPK phosphorylation in the NRK-52E cell induced with fluoride. These results imply that selenium is capable to modulate fluoride-induced NRK-52E cell apoptosis via regulating the expression levels of the proteins involved in mitochondrial pathway and changes in p-AMPK expressions may also be a key process in preventing fluorosis.
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Affiliation(s)
- Jiping Gao
- Laboratory Animal Center, Shanxi Key Laboratory of Experimental Animal Science and Human Disease Animal Model, Shanxi Medical University, Road Xinjian 56, Taiyuan, 030001, China
| | - Yu Wang
- Laboratory Animal Center, Shanxi Key Laboratory of Experimental Animal Science and Human Disease Animal Model, Shanxi Medical University, Road Xinjian 56, Taiyuan, 030001, China
| | - Guoqiang Xu
- Laboratory Animal Center, Shanxi Key Laboratory of Experimental Animal Science and Human Disease Animal Model, Shanxi Medical University, Road Xinjian 56, Taiyuan, 030001, China
| | - Jianing Wei
- Laboratory Animal Center, Shanxi Key Laboratory of Experimental Animal Science and Human Disease Animal Model, Shanxi Medical University, Road Xinjian 56, Taiyuan, 030001, China
| | - Kai Chang
- Laboratory Animal Center, Shanxi Key Laboratory of Experimental Animal Science and Human Disease Animal Model, Shanxi Medical University, Road Xinjian 56, Taiyuan, 030001, China
| | - Xiaolin Tian
- Laboratory Animal Center, Shanxi Key Laboratory of Experimental Animal Science and Human Disease Animal Model, Shanxi Medical University, Road Xinjian 56, Taiyuan, 030001, China
| | - Maolin Liu
- Laboratory Animal Center, Shanxi Key Laboratory of Experimental Animal Science and Human Disease Animal Model, Shanxi Medical University, Road Xinjian 56, Taiyuan, 030001, China
| | - Xiaoyan Yan
- School of Public Health, Shanxi Medical University, Shanxi, 030001, China
| | - Meijun Huo
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Medicine, Shanxi Agricultural University, Taigu, 030801, China
| | - Guohua Song
- Laboratory Animal Center, Shanxi Key Laboratory of Experimental Animal Science and Human Disease Animal Model, Shanxi Medical University, Road Xinjian 56, Taiyuan, 030001, China.
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21
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Wei W, Pang S, Sun D. The pathogenesis of endemic fluorosis: Research progress in the last 5 years. J Cell Mol Med 2019; 23:2333-2342. [PMID: 30784186 PMCID: PMC6433665 DOI: 10.1111/jcmm.14185] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Revised: 12/03/2018] [Accepted: 01/10/2019] [Indexed: 12/14/2022] Open
Abstract
Fluorine is one of the trace elements necessary for health. It has many physiological functions, and participates in normal metabolism. However, fluorine has paradoxical effects on the body. Many studies have shown that tissues and organs of humans and animals appear to suffer different degrees of damage after long-term direct or indirect exposure to more fluoride than required to meet the physiological demand. Although the aetiology of endemic fluorosis is clear, its specific pathogenesis is inconclusive. In the past 5 years, many researchers have conducted in-depth studies into the pathogenesis of endemic fluorosis. Research in the areas of fluoride-induced stress pathways, signalling pathways and apoptosis has provided further extensive knowledge at the molecular and genetic level. In this article, we summarize the main results.
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Affiliation(s)
- Wei Wei
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, China.,Institution of Environmentally Related Diseases, Harbin Medical University, Harbin, China
| | - Shujuan Pang
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, China
| | - Dianjun Sun
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, China
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22
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Wei Q, Deng H, Cui H, Fang J, Zuo Z, Deng J, Li Y, Wang X, Zhao L. A mini review of fluoride-induced apoptotic pathways. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:33926-33935. [PMID: 30338467 DOI: 10.1007/s11356-018-3406-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 10/04/2018] [Indexed: 06/08/2023]
Abstract
Fluorine or fluoride can have toxic effects on bone tissue and soft tissue at high concentrations. These negative effects include but not limited to cytotoxicity, immunotoxicity, blood toxicity, and oxidative damage. Apoptosis plays an important role in fluoride-induced toxicity of kidney, liver, spleen, thymus, bursa of Fabricius, cecal tonsil, and cultured cells. Here, apoptosis activated by high level of fluoride has been systematically reviewed, focusing on three pathways: mitochondrion-mediated, endoplasmic reticulum (ER) stress-mediated, and death receptor-mediated pathways. However, very limited reports are focused on the death receptor-mediated apoptosis pathways in the fluoride-induced apoptosis. Therefore, understanding and discovery of more pathways and molecular mechanisms of fluoride-induced apoptosis may contribute to designing measures for preventing fluoride toxicity.
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Affiliation(s)
- Qin Wei
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China
| | - Huidan Deng
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China
| | - Hengmin Cui
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China.
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, Sichuan, China.
- Key Laboratory of Agricultural information engineering of Sichuan Province, Sichuan Agriculture University, Ya'an, 625014, Sichuan, China.
| | - Jing Fang
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, Sichuan, China
| | - Zhicai Zuo
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, Sichuan, China
| | - Junliang Deng
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, Sichuan, China
| | - Yinglun Li
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, Sichuan, China
| | - Xun Wang
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, Sichuan, China
| | - Ling Zhao
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, Sichuan, China
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23
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Liu J, Wang HW, Zhao WP, Li XT, Lin L, Zhou BH. Induction of pathological changes and impaired expression of cytokines in developing female rat spleen after chronic excess fluoride exposure. Toxicol Ind Health 2018; 35:43-52. [DOI: 10.1177/0748233718809773] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
This study was designed to investigate the effects of excessive fluoride on spleen toxicity. Twenty-four healthy female rats were randomly divided into two groups, each of 12 rats. Each group of female rats was given a control diet and either F− = 0 mg/L or an excessive F− = 150 mg/L in the drinking water for 120 days. The histomorphological and ultrastructural changes in their splenic tissues were observed under light and transmission electron microscopes. DNA damage and splenocyte apoptosis were examined using the micronucleus (MN) assay, single-cell gel electrophoresis (SCGE), and flow cytometry. The expression levels of cytokines, including interleukin (IL)-1β, IL-2, IL-6, and tumor necrosis factor (TNF)-α, were determined through immunohistochemistry and Western-blot analysis. Results demonstrated that the histomorphological characteristics and ultrastructure of the splenic tissues were affected by excessive fluoride. Nuclear dying, nuclear membrane dissolution, mitochondrial vacuolation, and endoplasmic reticulum dilation were observed. SCGE and MN assays showed that the nuclear DNA of splenocytes was damaged by fluoride treatment, and splenocyte apoptosis was exacerbated in the fluoride group. With damage to the splenocyte structure and DNA, the protein expression levels of IL-1β, IL-2, IL-6, and TNF-α were significantly downregulated by exposure to fluoride. Excessive fluoride ingestion caused splenic pathological damage and abnormal cytokine expression in female rats.
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Affiliation(s)
- Jing Liu
- College of Animal Science and Technology, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang 471000, Henan, People’s Republic of China
| | - Hong-wei Wang
- College of Animal Science and Technology, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang 471000, Henan, People’s Republic of China
| | - Wen-peng Zhao
- College of Animal Science and Technology, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang 471000, Henan, People’s Republic of China
| | - Xiao-ting Li
- College of Animal Science and Technology, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang 471000, Henan, People’s Republic of China
| | - Lin Lin
- College of Animal Science and Technology, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang 471000, Henan, People’s Republic of China
| | - Bian-hua Zhou
- College of Animal Science and Technology, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang 471000, Henan, People’s Republic of China
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24
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Wei Q, Luo Q, Liu H, Chen L, Cui H, Fang J, Zuo Z, Deng J, Li Y, Wang X, Zhao L. The mitochondrial pathway is involved in sodium fluoride (NaF)-induced renal apoptosis in mice. Toxicol Res (Camb) 2018; 7:792-808. [PMID: 30310657 PMCID: PMC6116726 DOI: 10.1039/c8tx00130h] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 06/20/2018] [Indexed: 12/24/2022] Open
Abstract
The objective of the present study was to explore the molecular mechanism of apoptosis induced by sodium fluoride (NaF) in the mouse kidney by using the methods of flow cytometry, quantitative real-time polymerase chain reaction (qRT-PCR), western blotting, and experimental pathology. 240 four-week-old ICR mice were randomly divided into 4 groups and exposed to different concentrations of NaF (0 mg kg-1, 12 mg kg-1, 24 mg kg-1 and 48 mg kg-1) for a period of 42 days. The results demonstrated that NaF increased cell apoptosis and the depolarization of the mitochondrial membrane potential (MMP), and that the mitochondrial pathway was involved in NaF-induced apoptosis. Alteration of the mitochondrial pathway was characterized by significantly increasing mRNA and protein expression levels of cytosolic cytochrome c (Cyt c), the second mitochondrial activator of caspases/direct inhibitors of the apoptosis binding protein with low pI (Smac/Diablo), the serine protease high-temperature-requirement protein A2/Omi (HtrA2/Omi), the apoptosis inducing factor (AIF), endonuclease G (Endo G), cleaved-cysteine aspartate specific protease-9 (cleaved-caspase-9), cleaved-cysteine aspartate specific protease-3 (cleaved-caspase-3), Bcl-2 antagonist killer (Bak), Bcl-2 associated X protein (Bax), Bcl-2 interacting mediator of cell death (Bim), cleaved-poly-ADP-ribose polymerase (cleaved-PARP), p-p53, and decreasing mRNA and protein expression levels of B-cell lymphoma-2 (Bcl-2), Bcl-extra large (Bcl-xL), and X chromosome-linked inhibitors of apoptosis proteins (XIAPs). To our knowledge, the mitochondrial pathway is reported for the first time in NaF-induced apoptosis of the human or animal kidney. Also, this study provides novel insights for further studying fluoride-induced nephrotoxicity.
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Affiliation(s)
- Qin Wei
- College of Veterinary Medicine , Sichuan Agricultural University , Wenjiang , Chengdu , 611130 , China . ; ; ; Tel: +86-136-0826-4628
| | - Qin Luo
- College of Veterinary Medicine , Sichuan Agricultural University , Wenjiang , Chengdu , 611130 , China . ; ; ; Tel: +86-136-0826-4628
| | - Huan Liu
- College of Veterinary Medicine , Sichuan Agricultural University , Wenjiang , Chengdu , 611130 , China . ; ; ; Tel: +86-136-0826-4628
| | - Linlin Chen
- College of Veterinary Medicine , Sichuan Agricultural University , Wenjiang , Chengdu , 611130 , China . ; ; ; Tel: +86-136-0826-4628
| | - Hengmin Cui
- College of Veterinary Medicine , Sichuan Agricultural University , Wenjiang , Chengdu , 611130 , China . ; ; ; Tel: +86-136-0826-4628
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province , Sichuan Agriculture University , Wenjiang , Chengdu , 611130 , China
| | - Jing Fang
- College of Veterinary Medicine , Sichuan Agricultural University , Wenjiang , Chengdu , 611130 , China . ; ; ; Tel: +86-136-0826-4628
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province , Sichuan Agriculture University , Wenjiang , Chengdu , 611130 , China
| | - Zhicai Zuo
- College of Veterinary Medicine , Sichuan Agricultural University , Wenjiang , Chengdu , 611130 , China . ; ; ; Tel: +86-136-0826-4628
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province , Sichuan Agriculture University , Wenjiang , Chengdu , 611130 , China
| | - Junliang Deng
- College of Veterinary Medicine , Sichuan Agricultural University , Wenjiang , Chengdu , 611130 , China . ; ; ; Tel: +86-136-0826-4628
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province , Sichuan Agriculture University , Wenjiang , Chengdu , 611130 , China
| | - Yinglun Li
- College of Veterinary Medicine , Sichuan Agricultural University , Wenjiang , Chengdu , 611130 , China . ; ; ; Tel: +86-136-0826-4628
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province , Sichuan Agriculture University , Wenjiang , Chengdu , 611130 , China
| | - Xun Wang
- College of Veterinary Medicine , Sichuan Agricultural University , Wenjiang , Chengdu , 611130 , China . ; ; ; Tel: +86-136-0826-4628
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province , Sichuan Agriculture University , Wenjiang , Chengdu , 611130 , China
| | - Ling Zhao
- College of Veterinary Medicine , Sichuan Agricultural University , Wenjiang , Chengdu , 611130 , China . ; ; ; Tel: +86-136-0826-4628
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province , Sichuan Agriculture University , Wenjiang , Chengdu , 611130 , China
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25
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Lu Y, Luo Q, Cui H, Deng H, Kuang P, Liu H, Fang J, Zuo Z, Deng J, Li Y, Wang X, Zhao L. Sodium fluoride causes oxidative stress and apoptosis in the mouse liver. Aging (Albany NY) 2018; 9:1623-1639. [PMID: 28657544 PMCID: PMC5509460 DOI: 10.18632/aging.101257] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 06/20/2017] [Indexed: 12/25/2022]
Abstract
The current study was conducted to investigate the effect of sodium fluoride (NaF) on the oxidative stress and apoptosis as well as their relationship in the mouse liver by using methods of flow cytometry, quantitative real-time polymerase chain reaction (qRT-PCR), western blot, biochemistry and experimental pathology. 240 four-week-old ICR mice were randomly divided into 4 groups and exposed to different concentration of NaF (0 mg/kg, 12 mg/kg, 24 mg/kg and 48 mg/kg) for a period of 42 days. The results showed that NaF caused oxidative stress and apoptosis. NaF-caused oxidative stress was accompanied by increasing reactive oxygen species (ROS) and malondialdehyde (MDA) levels, and decreasing mRNA expression levels and activities of superoxide dismutase (SOD), catalase (CAT), glutathione (GSH), glutathione peroxidase (GSH-PX) and glutathione-s-transferase (GST). NaF induced apoptosis via tumor necrosis factor recpter-1 (TNF-R1) signaling pathway, which was characterized by significantly increasing mRNA and protein expression levels of TNF-R1, Fas associated death domain (FADD), TNFR-associated death domain (TRADD), cysteine aspartate specific protease-8 (caspase-8) and cysteine aspartate specific protease-3 (caspase-3) in dose- and time-dependent manner. Oxidative stress is involved in the process of apoptotic occurrence, and can be triggered by promoting ROS production and reducing antioxidant function. NaF-caused oxidative stress and apoptosis finally impaired hepatic function, which was strongly supported by the histopathological lesions and increased serum alanine amino transferase (ALT), aspartic acid transferase (AST), alkaline phosphatase (AKP) activities and TBIL contents.
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Affiliation(s)
- Yujiao Lu
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu 611130, China
| | - Qin Luo
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu 611130, China
| | - Hengmin Cui
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu 611130, China.,Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu 611130, China
| | - Huidan Deng
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu 611130, China
| | - Ping Kuang
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu 611130, China
| | - Huan Liu
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu 611130, China
| | - Jing Fang
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu 611130, China.,Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu 611130, China
| | - Zhicai Zuo
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu 611130, China.,Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu 611130, China
| | - Junliang Deng
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu 611130, China.,Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu 611130, China
| | - Yinglun Li
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu 611130, China.,Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu 611130, China
| | - Xun Wang
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu 611130, China.,Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu 611130, China
| | - Ling Zhao
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu 611130, China.,Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu 611130, China
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