1
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Parlak G, Aslan A, Turk G, Kuloglu T, Balgetir MK, Gok O, Beyaz S, Parlak AE, Cinkara SD. Activation of Nrf-2 Transcription Factor and Caspase Pathway with Royal Jelly Reduces Fluoride Induced Testicular Damage and Infertility in Rats. Reprod Sci 2023; 30:3103-3122. [PMID: 37171774 DOI: 10.1007/s43032-023-01265-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 05/07/2023] [Indexed: 05/13/2023]
Abstract
This study was carried out to investigate the protective properties of royal jelly on the testicular tissue of rats with testicular damage by giving fluoride. Sperm motility, epididymal sperm density and abnormal sperm ratios were examined and visualized with a light microscope. Expression levels of Caspase-3, Bcl-2, Nrf-2, NF-κB, COX-2, TNF-α and IL1-α proteins in testis tissue were determined by western blot technique. As a result of the study, MDA level, expression level of Bcl-2, NFҡB, COX-2, TNF-α and IL1-α proteins, abnormal sperm rates were found higher in Fluoride-50 and Fluoride100 groups compared to other groups. In addition GSH, Catalase enzyme levels, expression levels of Caspase-3 and Nrf-2 proteins were found to be higher in Fluoride + Royal Jelly groups compared to Fluoride-50 and Fluoride-100 groups. In addition, lower degeneration of testicular tissue was found in the histological evaluation in the Fluoride + Royal Jelly groups compared to the other groups. When the data are evaluated royal jelly provides effective protection against testicular damage. From this point of view, we hope that similar results will be obtained when royal jelly is tested on humans.
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Affiliation(s)
- Gozde Parlak
- Faculty of Science, Department of Biology-Molecular Biology and Genetics, Firat University, Elazig, Türkiye
| | - Abdullah Aslan
- Faculty of Science, Department of Biology-Molecular Biology and Genetics, Firat University, Elazig, Türkiye.
| | - Gaffari Turk
- Faculty of Veterinary Medicine, Department of Reproduction and Artificial Insemination, Firat University, Elazig, Türkiye
| | - Tuncay Kuloglu
- School of Medicine Department of Histology, Firat University, Elazig, Türkiye
| | | | - Ozlem Gok
- Faculty of Science, Department of Biology-Molecular Biology and Genetics, Firat University, Elazig, Türkiye
| | - Seda Beyaz
- Faculty of Science, Department of Biology-Molecular Biology and Genetics, Firat University, Elazig, Türkiye
| | - Akif Evren Parlak
- Department of Environmental Protection Technologies, Keban Vocational School, Firat University, Elazig, Türkiye
| | - Serap Dayan Cinkara
- Faculty of Veterinary Medicine, Department of Reproduction and Artificial Insemination, Firat University, Elazig, Türkiye
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2
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Angwa LM, Nyadanu SD, Kanyugo AM, Adampah T, Pereira G. Fluoride-induced apoptosis in non-skeletal tissues of experimental animals: A systematic review and meta-analysis. Heliyon 2023; 9:e18646. [PMID: 37560699 PMCID: PMC10407679 DOI: 10.1016/j.heliyon.2023.e18646] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 07/15/2023] [Accepted: 07/24/2023] [Indexed: 08/11/2023] Open
Abstract
Different studies have suggested that fluoride can induce apoptosis in non-skeletal tissues, however, evidence from these experimental studies is still controversial. This meta-analysis aims to clarify the mechanism of fluoride-induced apoptosis in non-skeletal tissues of experimental animals. Primary studies which measured apoptosis were identified through exhaustive database searching in PubMed, Embase, Web of Science Core Collection, Scopus, and references of included studies. A random effects model with standardized mean difference (SMD) was used for meta-analyses. The heterogeneity of the studies was evaluated using Higgin's I2 statistics. The risk of bias and publication bias were assessed using the SYRCLE's risk of bias tool and Egger's test, respectively. There was an increase in total apoptotic cells, and the expression of Bax, Bax/Bcl-2 ratio, caspase-3, caspase-8, caspase-9, Cyt c, and p53, and a decrease in the expression of Bcl-2 in the fluoride-treated groups as compared to the control groups. However, there was no evidence of a difference in the expression of APAF-1 in the two groups. The subgroup analysis highlighted the role of the intervention period in modification of the apoptotic effect of fluoride and that the susceptibility and tolerance of different animal species and tissues vary. Meta-regression analysis indicated that the studies' effect size for total apoptotic cells was influenced by animal species and that of Bax by the sample source. The results of this meta-analysis revealed that fluoride causes apoptosis by up-regulating caspase-3, -8, and -9, Cyt c, p53, Bax, and down-regulating Bcl-2 with a concomitant up-regulation of the Bax/Bcl-2 ratio.
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Affiliation(s)
- Linet Musungu Angwa
- Department of Clinical Medicine, Kabarak University, Private Bag, 20157, Kabarak, Kenya
| | - Sylvester Dodzi Nyadanu
- Curtin School of Population Health, Curtin University, Perth, Kent Street, Bentley, Western Australia, 6102, Australia
- Education, Culture, and Health Opportunities (ECHO) Research Group International, Aflao, Ghana
| | - Anne Murugi Kanyugo
- Department of Clinical Medicine, Kabarak University, Private Bag, 20157, Kabarak, Kenya
| | - Timothy Adampah
- Education, Culture, and Health Opportunities (ECHO) Research Group International, Aflao, Ghana
| | - Gavin Pereira
- Curtin School of Population Health, Curtin University, Perth, Kent Street, Bentley, Western Australia, 6102, Australia
- Centre for Fertility and Health (CeFH), Norwegian Institute of Public Health, 0473, Oslo, Norway
- enAble Institute, Curtin University, Perth, Kent Street, Bentley, Western Australia, 6102, Australia
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3
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Ottappilakkil H, Babu S, Balasubramanian S, Manoharan S, Perumal E. Fluoride Induced Neurobehavioral Impairments in Experimental Animals: a Brief Review. Biol Trace Elem Res 2023; 201:1214-1236. [PMID: 35488996 DOI: 10.1007/s12011-022-03242-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 04/09/2022] [Indexed: 02/07/2023]
Abstract
Fluoride is one of the major toxicants in the environment and is often found in drinking water at higher concentrations. Living organisms including humans exposed to high fluoride levels are found to develop mild-to-severe detrimental pathological conditions called fluorosis. Fluoride can cross the hematoencephalic barrier and settle in various brain regions. This accumulation affects the structure and function of both the central and peripheral nervous systems. The neural ultrastructure damages are reflected in metabolic and cognitive activities. Hindrances in synaptic plasticity and signal transmission, early neuronal apoptosis, functional alterations of the intercellular signaling pathway components, improper protein synthesis, dyshomeostasis of the transcriptional and neurotrophic factors, oxidative stress, and inflammatory responses are accounted for the fluoride neurotoxicity. Fluoride causes a decline in brain functions that directly influence the overall quality of life in both humans and animals. Animal studies are widely used to explore the etiology of fluoride-induced neurotoxicity. A good number of these studies support a positive correlation between fluoride intake and toxicity phenotypes closely associated with neurotoxicity. However, the experimental dosages highly surpass the normal environmental concentrations and are difficult to compare with human exposures. The treatment procedures are highly dependent on the dosage, duration of exposure, sex, and age of specimens among other factors which make it difficult to arrive at general conclusions. Our review aims to explore fluoride-induced neuronal damage along with associated histopathological, behavioral, and cognitive effects in experimental models. Furthermore, the correlation of various molecular mechanisms upon fluoride intoxication and associated neurobehavioral deficits has been discussed. Since there is no well-established mechanism to prevent fluorosis, phytochemical-based alleviation of its characteristic indications has been proposed as a possible remedial measure.
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Affiliation(s)
| | - Srija Babu
- Bharathiar University, Coimbatore, Tamilnadu, India
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4
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Abd-Allah ER, El-Rahman HAA. Ameliorative effects of nano Moringa on fluoride-induced testicular damage via down regulation of the StAR gene and altered steroid hormones. Reprod Biol 2023; 23:100724. [PMID: 36563520 DOI: 10.1016/j.repbio.2022.100724] [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: 08/15/2022] [Revised: 11/02/2022] [Accepted: 12/08/2022] [Indexed: 12/24/2022]
Abstract
Fluoride is a common environmental contaminant that has harmful effects on human health when it is present in high concentrations. Fluoride enters the bloodstream after being absorbed by the gastrointestinal system when fluoride-contaminated groundwater is consumed by people. The aim of the present study was to determine whether polyphenol-rich nano Moringa oleifera (NMO) could protect rat testicles from sodium fluoride (NaF) damage by evaluating sperm quality, sex hormones, testicular oxidative status, histopathology, and StAR gene expression. Twenty-eight adult Wistar rats were divided equally and randomly into four groups: group one received distilled water; group two received NMO at a dosage of 250 mg/kg/body weight; group three received NaF at a dosage of 10 mg/kg/body weight; and group four received NaF and NMO. The rats were orally administrated daily for a duration of eight weeks. The study's findings demonstrated that, in comparison to rats exposed to NaF alone, co-administration of NMO and NaF enhanced sperm motility and viability, decreased sperm morphological changes, restored the balance between oxidant and antioxidant status, improved testosterone and dehydroepiandrosterone, improved testicular histology, raised the Johnson score, and upregulated the StAR gene in testicular tissue. These findings show that NMO is promise as a prophylactic medication against sodium fluoride-induced testicular damage because administration of NMO had no adverse effects and enhanced reproductive health.
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Affiliation(s)
- Entsar R Abd-Allah
- Department of Zoology, Faculty of Science, Al-Azhar University, Nasr City, Egypt
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5
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Cao Q, Wang J, Hao Y, Zhao F, Fu R, Yu Y, Wang J, Niu R, Bian S, Sun Z. Exercise Ameliorates Fluoride-induced Anxiety- and Depression-like Behavior in Mice: Role of GABA. Biol Trace Elem Res 2022; 200:678-688. [PMID: 33825162 DOI: 10.1007/s12011-021-02678-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 03/15/2021] [Indexed: 12/31/2022]
Abstract
Fluoride exposure caused anxiety- and depression-like behavior in mice. Meanwhile, exercise contributes to relieve anxiety and depression. However, the effects of exercise on anxiety- and depression-like behavior in fluorosis mice remain unclear. In the current study, thirty-six Institute of Cancer Research (ICR) female mice were randomly assigned to four groups: control group (C, gavage with distilled water); exercise group (E, gavage with distilled water and treadmill exercise (speed, 10 m/min; time, 30 min/day)); fluoride group (F, gavage with 24 mg/kg sodium fluoride (NaF)); and exercise plus fluoride group (EF, gavage with 24 mg/kg NaF and treadmill exercise). All treatments lasted for 8 weeks. A number of entries into and time spent in the open zone in the elevated zero maze (EZM), resting time in the tail suspension test (TST) and levels of serotonin (5-HT) and gamma-aminobutyric acid (GABA), were significantly altered in F when compared to C. Meanwhile, the anxiety-like behavior in the EZM and the depression-like behavior in the TST were significantly improved in EF when compared to group F. Exercise significantly enhanced fluoride-induced low GABA level, with less effect on the concentration of 5-HT. Moreover, the mRNA and protein expressions of GABA synthesis and transport-related proteins of glutamic acid decarboxylase (GAD) 65 and GAD67 and vesicular GABA transporter (VGAT) were all strikingly decreased in F, while those in EF were increased. In conclusion, exercise ameliorates anxiety- and depression-like behavior in fluorosis mice through increasing the expressions of GABA synthesis and transport-related proteins, rather than 5-HT system.
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Affiliation(s)
- Qiqi Cao
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, China
| | - Jixiang Wang
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, China
| | - Yanru Hao
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, China
| | - Fangye Zhao
- Division of Sports Science and Physical Education, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, China
| | - Rong Fu
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, China
| | - Yanghuan Yu
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, China
| | - Jundong Wang
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, China
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, China
| | - Ruiyan Niu
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, China
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, China
| | - Shengtai Bian
- School of Sport Science, Beijing Sport University, Beijing, 100084, China
| | - Zilong Sun
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, China.
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, China.
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6
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Ren C, Zhang P, Yao XY, Li HH, Chen R, Zhang CY, Geng DQ. The cognitive impairment and risk factors of the older people living in high fluorosis areas: DKK1 need attention. BMC Public Health 2021; 21:2237. [PMID: 34886821 PMCID: PMC8656079 DOI: 10.1186/s12889-021-12310-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 11/25/2021] [Indexed: 01/15/2023] Open
Abstract
Objective To evaluate cognitive impairment and risk factors of elders in high fluoride drinking water areas and investigate whether DKK1 is involved in this disorder. Methods MoCA-B and AD-8 were used to measure the cognitive functions of 272 and 172 subjects over the age of 60 came from the high and normal fluoride drinking water areas respectively, general information and peripheral blood were collected, the level of SOD, GSH and MDA were measured, mRNA level of DKK1, the concentration of blood fluoride and the polymorphism of APOE were tested. Results The blood fluoride concentration, mRNA level of DKK1 and ratio of abnormal cognitive function of subjects in high fluorine drinking water areas were higher than those in normal areas. The level of SOD of subjects in high fluorine drinking water was low compared with those in normal areas. The level of MDA and GSH had no difference between the two crowds in different fluorine drinking water areas. There were differences in cigarette smoking, education, dental status, hypertension, hyperlipidaemia and APOE results between the two crowds in different fluorine drinking water areas. The mRNA level of DKK1 and the level of cognitive function showed a positive correlation and DKK1 was one of five risk factors involved in cognitive impairment of older people living in high fluorosis areas. Conclusions The cognitive functions could be impaired in the older people living in high fluoride drinking water areas, and DKK1 may as a potential intervention point of this brain damage process need attention.
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Affiliation(s)
- Chao Ren
- Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221006, China.,Department of Neurology , Department of Neurology Yantai Yuhuangding Hospitalof Qingdao University, Yantai, 264000, China
| | - Peng Zhang
- Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221006, China.,Department of Psychiatry and Psychology, The Affiliated Xuzhou Oriental Hospital of Xuzhou Medical University, Xuzhou, 221000, China
| | - Xiao-Yan Yao
- Department of Neurology , Department of Neurology Yantai Yuhuangding Hospitalof Qingdao University, Yantai, 264000, China
| | - Hui-Hua Li
- Zhenjiang Mental Health Center, The Fifth People's Hospital of Zhenjiang City, Zhenjiang, 212000, China
| | - Rui Chen
- Department of Neurology, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, 223002, China
| | - Cai-Yi Zhang
- Department of Psychiatry and Psychology, The Affiliated Xuzhou Oriental Hospital of Xuzhou Medical University, Xuzhou, 221000, China.
| | - De-Qin Geng
- Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221006, China.
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7
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Recent advances in cellular effects of fluoride: an update on its signalling pathway and targeted therapeutic approaches. Mol Biol Rep 2021; 48:5661-5673. [PMID: 34254226 DOI: 10.1007/s11033-021-06523-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 06/25/2021] [Indexed: 12/23/2022]
Abstract
Fluoride is a natural element essential in minute quantities in human's to maintain dental and skeletal health. However, the disease fluorosis manifests itself due to excessive fluoride intake mostly through drinking water and sometimes through food. At the cellular energetics level, fluoride is a known inhibitor of glycolysis. At the tissue level, the effect of fluoride has been more pronounced in the musculoskeletal systems due to its ability to retain fluoride. Fluoride alters dentinogenesis, thereby affecting the tooth enamel formation. In bones, fluoride alters the osteogenesis by replacing calcium, thus resulting in bone deformities. In skeletal muscles, high concentration and long term exposure to fluoride causes loss of muscle proteins leading to atrophy. Although fluorosis is quite a familiar problem, the exact molecular pathway is not yet clear. Extensive research on the effects of fluoride on various organs and its toxicity was reported. Indeed, it is clear that high and chronic exposure to fluoride causes cellular apoptosis. Accordingly, in this review, we have highlighted fluoride-mediated apoptosis via two vital pathways, mitochondrial-mediated and endoplasmic reticulum stress pathways. This review also elaborates on new cellular energetic, apoptotic pathways and therapeutic strategies targeted to treat fluorosis.
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8
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Wu C, Wang C, Zhai B, Zhao Y, Zhao Z, Yuan Z, Zhang M, Tian K, Fu X. Study of microRNA Expression Profile in Different Regions of Ram Epididymis. Reprod Domest Anim 2021; 56:1209-1219. [PMID: 34169586 DOI: 10.1111/rda.13978] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 06/01/2021] [Indexed: 11/29/2022]
Abstract
The regional expression of epididymal genes provides a guarantee for sperm maturation. As a class of endogenous non-coding small RNAs, microRNAs (miRNAs) play an important role in spermatogenesis, maturation and fertilization. Currently, the regulatory role of miRNA in the epididymis is poorly understood. Here, transcriptome sequencing was used to analyse miRNA expression profiles in three regions of the epididymis of rams, including caput, corpus and cauda. The results showed that there were 13 known miRNAs between the caput and corpus controls, 29 between the caput and cauda and 22 differences between the corpus and cauda. Based on the analysis of miRNA target genes by GO and KEGG, a negative regulation network of miRNA-mRNA was constructed in which let-7, miR-541-5p, miR-133b and miR-150 may play an important regulatory role in the maturation regulation of ram epididymal sperm. This research provides a reference for studying the regulation mechanism of sperm maturation in male epididymis and improving semen quality and male reproductive performance.
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Affiliation(s)
- Cuiling Wu
- College of Animal Science, Xinjiang Agricultural University, Urumqi, China.,Branch of Animal Husbandry, Jilin Academy of Agricultural Sciences, Gongzhuling, China.,Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Chunxin Wang
- Branch of Animal Husbandry, Jilin Academy of Agricultural Sciences, Gongzhuling, China
| | - Bo Zhai
- Branch of Animal Husbandry, Jilin Academy of Agricultural Sciences, Gongzhuling, China
| | - Yunhui Zhao
- Branch of Animal Husbandry, Jilin Academy of Agricultural Sciences, Gongzhuling, China
| | - Zhuo Zhao
- Branch of Animal Husbandry, Jilin Academy of Agricultural Sciences, Gongzhuling, China
| | - Zhiyu Yuan
- Branch of Animal Husbandry, Jilin Academy of Agricultural Sciences, Gongzhuling, China
| | - Mingxin Zhang
- Branch of Animal Husbandry, Jilin Academy of Agricultural Sciences, Gongzhuling, China
| | - Kechuan Tian
- Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Xuefeng Fu
- Key Laboratory of Genetics Breeding and Reproduction of Xinjiang Wool sheep & Cashmere-goat, Institute of Animal Science, Xinjiang Academy of Animal Sciences, Urumqi, China
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9
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Han J, Kiss L, Mei H, Remete AM, Ponikvar-Svet M, Sedgwick DM, Roman R, Fustero S, Moriwaki H, Soloshonok VA. Chemical Aspects of Human and Environmental Overload with Fluorine. Chem Rev 2021; 121:4678-4742. [PMID: 33723999 PMCID: PMC8945431 DOI: 10.1021/acs.chemrev.0c01263] [Citation(s) in RCA: 131] [Impact Index Per Article: 43.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Indexed: 12/24/2022]
Abstract
Over the last 100-120 years, due to the ever-increasing importance of fluorine-containing compounds in modern technology and daily life, the explosive development of the fluorochemical industry led to an enormous increase of emission of fluoride ions into the biosphere. This made it more and more important to understand the biological activities, metabolism, degradation, and possible environmental hazards of such substances. This comprehensive and critical review focuses on the effects of fluoride ions and organofluorine compounds (mainly pharmaceuticals and agrochemicals) on human health and the environment. To give a better overview, various connected topics are also discussed: reasons and trends of the advance of fluorine-containing pharmaceuticals and agrochemicals, metabolism of fluorinated drugs, withdrawn fluorinated drugs, natural sources of organic and inorganic fluorine compounds in the environment (including the biosphere), sources of fluoride intake, and finally biomarkers of fluoride exposure.
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Affiliation(s)
- Jianlin Han
- Jiangsu
Co-Innovation Center of Efficient Processing and Utilization of Forest
Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Loránd Kiss
- University
of Szeged, Institute of Pharmaceutical Chemistry
and Interdisciplinary Excellence Centre, Eötvös u. 6, 6720 Szeged, Hungary
| | - Haibo Mei
- Jiangsu
Co-Innovation Center of Efficient Processing and Utilization of Forest
Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Attila Márió Remete
- University
of Szeged, Institute of Pharmaceutical Chemistry
and Interdisciplinary Excellence Centre, Eötvös u. 6, 6720 Szeged, Hungary
| | - Maja Ponikvar-Svet
- Department
of Inorganic Chemistry and Technology, Jožef
Stefan Institute, Jamova
cesta 39, 1000 Ljubljana, Slovenia
| | - Daniel Mark Sedgwick
- Departamento
de Química Orgánica, Universidad
de Valencia, 46100 Burjassot, Valencia Spain
| | - Raquel Roman
- Departamento
de Química Orgánica, Universidad
de Valencia, 46100 Burjassot, Valencia Spain
| | - Santos Fustero
- Departamento
de Química Orgánica, Universidad
de Valencia, 46100 Burjassot, Valencia Spain
| | - Hiroki Moriwaki
- Hamari
Chemicals Ltd., 1-19-40, Nankokita, Suminoe-ku, Osaka 559-0034, Japan
| | - Vadim A. Soloshonok
- Department
of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, 20018 San Sebastian, Spain
- IKERBASQUE,
Basque Foundation for Science, 48011 Bilbao, Spain
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10
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Zeng F, Chen Y, Guo C, Li C, Wei H, Li L, Meng L, Zhang S. Analysis of differentially abundant proteins related to boar fertility in seminal plasma using iTRAQ-based quantitative proteomics. J Proteomics 2021; 236:104120. [PMID: 33540064 DOI: 10.1016/j.jprot.2021.104120] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/13/2021] [Accepted: 01/15/2021] [Indexed: 12/14/2022]
Abstract
Animal fertility is one of the most important characteristics for the livestock breeding industry. Conventional semen analysis provides basic information on sperm quality, but the predictive value of such analysis with regard to fertility remains questionable. Therefore, it is important to determine and predict male fertility more accurately in the clinic. To identify seminal plasma proteins involved in fertility, isobaric tags for relative and absolute quantitation (iTRAQ) and liquid chromatography with tandem mass spectrometry (quantitative proteomic analysis) were used to identify differentially abundant proteins (DAPs) in seminal plasma between high- and low-reproductive-efficiency Landrace boars. A total of 141 DAPs were identified, of which 125 upregulated and 16 downregulated proteins were subjected to bioinformatics analysis. These DAPs were found to be mainly involved in proteolysis, ATP binding, and energy metabolism. We investigated the relevance of three DAPs-ceruloplasmin, carboxypeptidase E (CPE), and serpin family A member 12 (SERPINA12)-in an in vitro fertility assay. This assay revealed that the inhibition of these proteins with antibodies can reduce or increase the fertilization rate. These results indicate possible biomarkers for the selection of high-fertility boars and provide a theoretical basis for the use of protein biomarkers in the livestock breeding industry. SIGNIFICANCE: Our study identified differentially abundant proteins in the seminal plasma of high-reproductive-efficiency and low-reproductive-efficiency Landrace boars. These proteins may be used as biomarkers to screen out high-fertility boars. The study can provide not only a new method for improving the effects of artificial insemination and reproductive efficiency of boars but also an important reference for boar breeding. Meanwhile, because pigs and humans have similar physiological parameters and organ sizes, our findings can also serve as a reference for human reproduction research.
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Affiliation(s)
- Fanwen Zeng
- National Engineering Research Center for Breeding Swine Industryg, Guangdong Provincial Key Lab of Agro-animal Genomics and Molecular Breeding, College of Animal Science of South China Agricultural University, Guangzhou 510642, China
| | - Yuming Chen
- National Engineering Research Center for Breeding Swine Industryg, Guangdong Provincial Key Lab of Agro-animal Genomics and Molecular Breeding, College of Animal Science of South China Agricultural University, Guangzhou 510642, China; Guangdong Kaiping Guangsanbao Pig Industry Co., Ltd, Jiangmen 529300, China
| | - Conghui Guo
- National Engineering Research Center for Breeding Swine Industryg, Guangdong Provincial Key Lab of Agro-animal Genomics and Molecular Breeding, College of Animal Science of South China Agricultural University, Guangzhou 510642, China
| | - Chengde Li
- National Engineering Research Center for Breeding Swine Industryg, Guangdong Provincial Key Lab of Agro-animal Genomics and Molecular Breeding, College of Animal Science of South China Agricultural University, Guangzhou 510642, China
| | - Hengxi Wei
- National Engineering Research Center for Breeding Swine Industryg, Guangdong Provincial Key Lab of Agro-animal Genomics and Molecular Breeding, College of Animal Science of South China Agricultural University, Guangzhou 510642, China
| | - Li Li
- National Engineering Research Center for Breeding Swine Industryg, Guangdong Provincial Key Lab of Agro-animal Genomics and Molecular Breeding, College of Animal Science of South China Agricultural University, Guangzhou 510642, China
| | - Li Meng
- National Engineering Research Center for Breeding Swine Industryg, Guangdong Provincial Key Lab of Agro-animal Genomics and Molecular Breeding, College of Animal Science of South China Agricultural University, Guangzhou 510642, China
| | - Shouquan Zhang
- National Engineering Research Center for Breeding Swine Industryg, Guangdong Provincial Key Lab of Agro-animal Genomics and Molecular Breeding, College of Animal Science of South China Agricultural University, Guangzhou 510642, China.
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11
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Dibyendu R, Tiasa C, Das M, Pradip P, Sandip M. Folic acid protects against fluoride-induced oxidative stress and testicular damage in rats. ASIAN PACIFIC JOURNAL OF REPRODUCTION 2021. [DOI: 10.4103/2305-0500.331265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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12
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Zhou BH, Wei SS, Jia LS, Zhang Y, Miao CY, Wang HW. Drp1/Mff signaling pathway is involved in fluoride-induced abnormal fission of hepatocyte mitochondria in mice. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 725:138192. [PMID: 32278173 DOI: 10.1016/j.scitotenv.2020.138192] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 03/20/2020] [Accepted: 03/23/2020] [Indexed: 06/11/2023]
Abstract
Fluoride, a toxic substance, is widely distributed in the environment and causes serious damage to the body. This study was performed to investigate the effects of fluoride on mitochondrial fission in mouse hepatocytes. A total of 48 mice were equally divided into four groups and admisnistered with NaF in drinking water at fluorine ion concentrations of 0, 25, 50 and 100 mg/L for 70 days. The pathomorphology and ultrastructurre of hepatocytes were then observed. The mitochondrial lesion parameters (number, length, width and vacuolization area) are evaluated. The expression of Drp1, Mff, Fis1, MiD49, MiD51 and Dyn2, which are associated with mitochondrial fission, was determined by quantitative real-time PCR and Western blot analysis. Apoptosis was detected by using TUNEL assay. Results showed that fluoride causes notable changes in the pathological morphology of liver tissues and severely damages the ultrastructure of hepatocytes. Damage manifested as nuclear condensation, nuclear membrane breakdown, mitochondrial vacuolation, increased fragmentation, and mitochondrial fission. Moreover, mRNA and protein expression levels were significantly upregulated in the Drp1/Mff signaling pathway. The mRNA expression levels of Cyt c, caspase 9 and 3 markedly increased in the fluoride treated groups in a dose-dependent manner. The percentage of TUNEL-positive nuclei in the liver remarkably increased after fluoride treatment. Overall, the results indicate that excessive fluoride exposure can increase mitochondrial fission via the Drp1/Mff signaling pathway, severely damage the mitochondrial structure, and lead to apoptosis of hepatocytes.
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Affiliation(s)
- 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.
| | - Shan-Shan Wei
- College of Animal Science and Technology, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang 471000, Henan, People's Republic of China
| | - Liu-Shu Jia
- College of Animal Science and Technology, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang 471000, Henan, People's Republic of China
| | - Yan Zhang
- College of Animal Science and Technology, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang 471000, Henan, People's Republic of China
| | - Cheng-Yi Miao
- 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.
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13
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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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14
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Han Y, Yu Y, Liang C, Shi Y, Zhu Y, Zheng H, Wang J, Zhang J. Fluoride-induced unrestored arrest during haploid period of spermatogenesis via the regulation of DDX25 in rats. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 253:538-551. [PMID: 31330346 DOI: 10.1016/j.envpol.2019.06.107] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 06/22/2019] [Accepted: 06/26/2019] [Indexed: 06/10/2023]
Abstract
The effect of fluoride as an ongoing topic has attracted much attentions due to the decline in overall human fertility worldwide. However, whether fluorine causes a temporary stimulus or permanent damage to the male reproductive system, as well as the mechanism of fluoride influencing spermatogenesis remained unclear. 48 adult male rats were randomly divided into four groups (twelve each). Control group received the distilled water, while the other three groups were treated with 25, 50, 100 mg/L NaF via drinking water for 8 weeks. Six rats from each group were selected randomly to detect the levels of various indices related to spermatogenesis. The remaining rats were given only distilled water and left for recovery of a period of 2 weeks. Results showed that the levels of serum CK, ALP, CHE, BUN, UA, and Cr, testis morphology and the ultrastructure of sperm acrosome and chromatoid body (CB) were significantly changed by fluoride. Interestingly, the elongated spermatid counts, spermatids elongation ratio, and mRNA expressions of Prm1/2 and MIWI, TDRD1, TDRD 6, TDRD7, PABP, and Hsp72 related to CB decreased markedly in fluoride treatment groups compared to the control. Furthermore, the expression levels of DDX25 and associated regulatory proteins like CRM1, HMG2, H4, TP2, and PGK2 were down-regulated by fluoride. After 2-weeks withdrawal period, out of the 19 altered spermatogenesis indicators, 15 indicators in 100 mg/L group and 3 indicators in 50 mg/L group still exhibited a significant change, while none showed change in 25 mg/L group. These results proved that the reversibility of fluoride toxicity is dose-dependent on the male reproductive system. Meanwhile, fluoride caused unrestored arrest during the haploid period of spermatogenesis, where reduced DDX25 and associated regulatory proteins play a crucial role in this process, which could provide the underlying insights to the toxic mechanism of fluoride induced male reproductive toxicity.
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Affiliation(s)
- Yongli Han
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, PR China
| | - Yuxiang Yu
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, PR China
| | - Chen Liang
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, PR China
| | - Yan Shi
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, PR China
| | - Yuchen Zhu
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, PR China
| | - Heping Zheng
- College of Biology, Department of Molecular Medicine, Hunan University, Changsha, 410082, PR China.
| | - Jundong Wang
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, PR China.
| | - Jianhai Zhang
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, PR China.
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15
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Acute fluoride exposure alters myocardial redox and inflammatory markers in rats. Mol Biol Rep 2019; 46:6155-6164. [DOI: 10.1007/s11033-019-05050-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 08/28/2019] [Indexed: 01/31/2023]
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16
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Wang H, Wang G, Dai Y, Li Z, Zhu Y, Sun F. Functional role of GKAP1 in the regulation of male germ cell spontaneous apoptosis and sperm number. Mol Reprod Dev 2019; 86:1199-1209. [PMID: 31318116 DOI: 10.1002/mrd.23236] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 06/27/2019] [Indexed: 01/18/2023]
Abstract
G kinase-anchoring protein 1 (GKAP1) is a G kinase-associated protein that is conserved in many eutherians and is mainly expressed in the testis, especially in spermatocytes and round spermatids. The function of GKAP1 in the testis is largely unknown. Here, we revealed that deletion of GKAP1 led to an increase in sperm production with swollen epididymis, and germ cell apoptosis was found to decrease in GKAP1 knock-out mice. Further investigations showed that a deficiency of GKAP1 could partly change the cellular location of cGK-Iα and increase the amount of active cAMP response element-binding protein (CREB) in the nucleus. Therefore, the expression of a particular inhibitor of apoptosis proteins (IAPs) was upregulated because of the activation of CREB, and this increase in IAPs was associated with a decrease in the level of activated caspase-3. These results suggest that a deficiency of GKAP1 in mouse testis could increase sperm production through a reduction of the spontaneous apoptosis of germ cells in the testis, possibly because of a change in the activity of the cGK-Iα pathway.
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Affiliation(s)
- Hanshu Wang
- International Peace Maternity & Child Health Hospital, Shanghai Key laboratory for Embryo-Original Adult Disease, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Guishuan Wang
- Institute of Reproductive Medicine, School of Medicine, Nantong University, Nantong, Jiangsu, China
| | - Yubing Dai
- Qingdao University Medical College, School of Medicine, Qingdao University, Qingdao, China
| | - Zhenhua Li
- International Peace Maternity & Child Health Hospital, Shanghai Key laboratory for Embryo-Original Adult Disease, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yu Zhu
- International Peace Maternity & Child Health Hospital, Shanghai Key laboratory for Embryo-Original Adult Disease, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Fei Sun
- International Peace Maternity & Child Health Hospital, Shanghai Key laboratory for Embryo-Original Adult Disease, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Institute of Reproductive Medicine, School of Medicine, Nantong University, Nantong, Jiangsu, China
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17
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Liu Y, Liang C, Gao Y, Jiang S, He Y, Han Y, Olfati A, Manthari RK, Wang J, Zhang J. Fluoride Interferes with the Sperm Fertilizing Ability via Downregulated SPAM1, ACR, and PRSS21 Expression in Rat Epididymis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:5240-5249. [PMID: 31008594 DOI: 10.1021/acs.jafc.9b01114] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Fluoride is a widespread environmental pollutant that can induce low sperm quality and fertilizing ability; however, the underlying mechanism still remains unclear. Hence, we aimed to investigate the influence of fluoride on the sperm fertilizing ability via some key proteins in the epididymis. For this, 40 adult rats were assigned randomly into four groups. The control group was given distilled water, while the other three groups were given 25, 50, and 100 mg of NaF/L via drinking water for 56 days, respectively. After 1 day, epididymides were processed for sperm-egg binding, RNA extraction, western blot, and immunofluorescence analysis. Fluoride exposure reduced the ability of sperm to break down the egg cumulus cell layer. A further study revealed that fluoride altered the expression levels of genes and proteins related to acrosome reaction in vivo, including SPAM1, ACR, and PRSS21. However, fluoride only affected the expression of the ACR protein only in the epididymis but not in the testis. Fluoride also affected the expression levels of the membrane proteins CD9 and CD81 of epididymosomes in the epididymis. From the results, it can be concluded that fluoride exposure reduced the ability of sperm to break down the egg cumulus cell layer, which could be one of the reasons for decreased fertility ability in males treated with fluoride. These results provide some theoretical guidance and new ideas for treatments of low fertility, infertility, and other reproductive diseases.
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Affiliation(s)
- Yu Liu
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi 030801 , People's Republic of China
| | - Chen Liang
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi 030801 , People's Republic of China
| | - Yan Gao
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi 030801 , People's Republic of China
| | - Shanshan Jiang
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi 030801 , People's Republic of China
| | - Yuyang He
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi 030801 , People's Republic of China
| | - Yongli Han
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi 030801 , People's Republic of China
| | - Ali Olfati
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi 030801 , People's Republic of China
| | - Ram Kumar Manthari
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi 030801 , People's Republic of China
| | - Jundong Wang
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi 030801 , People's Republic of China
| | - Jianhai Zhang
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi 030801 , People's Republic of China
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18
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In Vivo Comparison of the Phenotypic Aspects and Molecular Mechanisms of Two Nephrotoxic Agents, Sodium Fluoride and Uranyl Nitrate. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16071136. [PMID: 30934888 PMCID: PMC6479911 DOI: 10.3390/ijerph16071136] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 03/22/2019] [Accepted: 03/26/2019] [Indexed: 02/03/2023]
Abstract
Because of their nephrotoxicity and presence in the environment, uranium (U) and fluoride (F) represent risks to the global population. There is a general lack of knowledge regarding the mechanisms of U and F nephrotoxicity and the underlying molecular pathways. The present study aims to compare the threshold of the appearance of renal impairment and to study apoptosis and inflammation as mechanisms of nephrotoxicity. C57BL/6J male mice were intraperitoneally treated with a single dose of U (0, 2, 4 and 5 mg/kg) or F (0, 2, 5, 7.5 and 10 mg/kg) and euthanized 72 h after. Renal phenotypic characteristics and biological mechanisms were evaluated by urine biochemistry, gene/protein expression, enzyme activity, and (immuno)histological analyses. U and F exposures induced nephrotoxicity in a dose-dependent manner, and the highest concentrations induced severe histopathological alterations as well as increased gene expression and urinary excretion of nephrotoxicity biomarkers. KIM-1 gene expression was induced starting at 2 mg/kg U and 7.5 mg/kg F, and this increase in expression was confirmed through in situ detection of this biomarker of nephrotoxicity. Both treatments induced inflammation as evidenced by cell adhesion molecule expression and in situ levels, whereas caspase 3/7-dependent apoptosis was increased only after U treatment. Overall, a single dose of F or U induced histopathologic evidence of nephrotoxicity renal impairment and inflammation in mice with thresholds under 7.5 mg/kg and 4 mg/kg, respectively.
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19
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Zhao WP, Wang HW, Liu J, Zhang ZH, Zhu SQ, Zhou BH. Mitochondrial respiratory chain complex abnormal expressions and fusion disorder are involved in fluoride-induced mitochondrial dysfunction in ovarian granulosa cells. CHEMOSPHERE 2019; 215:619-625. [PMID: 30342406 DOI: 10.1016/j.chemosphere.2018.10.043] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 10/03/2018] [Accepted: 10/06/2018] [Indexed: 06/08/2023]
Abstract
Excessive fluoride intake has a strong female reproductive toxicity, which can result in follicular developmental dysplasia and decrease oocytes developmental potential. The underlying mechanisms of fluoride-induced mitochondrial dysfunction in ovarian granulosa cells remain largely unknown. In this study, the ultrastructure changes of mitochondria and DNA damage in ovarian granulosa cells were observed under transmission electron microscope and TUNEL staining. Then, the ATP content and ROS level in granulosa cells were measured. The expression of mitochondrial fusion proteins and mitochondrial respiratory chain complexes, including OPA1 and Mfn1, and NDUFV2, SDHA and CYC1, in the ovarian tissues were measured by immunohistochemistry, Western blot and Quantitative real-time PCR analyses. The expression of ATP5j and ATP5h in the ovarian tissues was also measured. Results show that fluoride treatment considerably damages mitochondrial ultrastructure and enhances the apoptosis of granulosa cells. The ATP content greatly decreased, whereas the ROS level increased after fluoride treatment. The expression level of Mfn1 in the ovarian tissue was up-regulated, whereas OPA1 expression had no significant change. The expression levels of NDUFV2, SDHA and CYC1 were considerably up-regulated, and the expression of ATP5j and ATP5h were down-regulated after fluoride treatment. In summary, the damage in the mitochondrial ultrastructure, ATP content decrease, ROS level increase and the abnormal expression of OPA1, Mfn1, NDUFV2, SDHA, CYC1, ATP5j and ATP5h in ovary tissue are closely associated with fluoride-induced mitochondrial dysfunction, which might be responsible for the follicular developmental dysplasia and the potential decrease in oocyte development induced by fluoride in female mice.
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Affiliation(s)
- Wen-Peng Zhao
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471000, Henan, PR China.
| | - Hong-Wei Wang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471000, Henan, PR China.
| | - Jing Liu
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471000, Henan, PR China.
| | - Zi-Hao Zhang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471000, Henan, PR China.
| | - Shi-Quan Zhu
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471000, Henan, PR China.
| | - Bian-Hua Zhou
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471000, Henan, PR China.
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20
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Zhao WP, Wang HW, Liu J, Tan PP, Luo XL, Zhu SQ, Chen XL, Zhou BH. Positive PCNA and Ki-67 Expression in the Testis Correlates with Spermatogenesis Dysfunction in Fluoride-Treated Rats. Biol Trace Elem Res 2018; 186:489-497. [PMID: 29748930 DOI: 10.1007/s12011-018-1338-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Accepted: 04/05/2018] [Indexed: 01/15/2023]
Abstract
The present study aimed to evaluate the effect of fluoride (F) on spermatogenesis in male rats. F- at 50 and 100 mg/L was administered for 70 days, after which the testicular and epididymis tissues were collected to observe the histopathological structure under a light microscope. The ultrastructure of the testis and sperm was also examined via transmission electron microscopy. The apoptosis of spermatogenic cells was measured through terminal deoxynucleotidyl transferase dUTP nick end labeling staining. The expression of proliferation factors, namely, proliferating cell nuclear antigen (PCNA) and Ki-67, in the testicular and epididymis tissues, were assayed through immunohistochemistry. F- at 50 and 100 mg/L significantly damaged the structure of the testis and epididymis, and the testis and sperm ultrastructure exhibited various changes, including mitochondrial swelling and vacuolization, and apsilated and raised sperm membrane. F treatment significantly increased spermatogenic cell apoptosis in the testis. PCNA (P < 0.01) and Ki-67 (P < 0.01) also presented positive expression in the testis. By comparison, no significant changes occurred in the epididymis. In summary, excessive F intake results in spermatogenesis dysfunction by damaging the testicular structure and inducing spermatogenic cell apoptosis in male rats. The positive expression level of PCNA and Ki-67 was a good response to spermatogenesis dysfunction.
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Affiliation(s)
- 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
| | - 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.
| | - 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
| | - Pan-Pan Tan
- College of Animal Science and Technology, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang, 471000, Henan, People's Republic of China
| | - Xiang-Long Luo
- College of Animal Science and Technology, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang, 471000, Henan, People's Republic of China
| | - Shi-Quan Zhu
- College of Animal Science and Technology, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang, 471000, Henan, People's Republic of China
| | - Xue-Li Chen
- 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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21
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Orta Yilmaz B, Korkut A, Erkan M. Sodium fluoride disrupts testosterone biosynthesis by affecting the steroidogenic pathway in TM3 Leydig cells. CHEMOSPHERE 2018; 212:447-455. [PMID: 30165274 DOI: 10.1016/j.chemosphere.2018.08.112] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 07/26/2018] [Accepted: 08/21/2018] [Indexed: 06/08/2023]
Abstract
Fluorine is an essential trace element to which humans and animals are exposed through water, food, air and products used for dental health. Numerous studies have reported the detrimental effects of fluoride on testicular function and fertility; however, the underlying mechanisms of testosterone biosynthesis remain unclear. In this study, Leydig cells, the primary cells responsible for the production and regulation of steroid hormones in the testis, were used to elicit effects of sodium fluoride on the steroidogenic pathway. Leydig cells were treated with 0, 0.1, 1, 10 and 100 mg/L sodium fluoride for 24 h, respectively. The result of the study showed that sodium fluoride significantly decreased cell viability and cell proliferation, increased cell cytotoxicity and decreased the amounts of testosterone and 3',5'-cyclic adenosine monophosphate levels in a concentration-dependent manner. Also, these results indicated that NaF suppressed the expression of steroidogenic genes (steroidogenic acute regulatory protein, cholesterol side-chain cleavage enzyme, 3β-hydroxy dehydrogenase type I and 17β-hydroxy dehydrogenase type III) and proteins (luteinizing hormone receptor, cholesterol side-chain cleavage enzyme, 3β-hydroxy dehydrogenase), by changing the mRNA expression levels of the transcription factors (steroidogenic factor-1, GATA binding protein-4, nerve growth factor IB and nuclear receptor subfamily 0 group B member 1).
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Affiliation(s)
- Banu Orta Yilmaz
- Department of Biology, Faculty of Science, Istanbul University, Istanbul, Turkey.
| | - Ahu Korkut
- Department of Obstetrics and Gynaecology, Isparta City Hospital, Isparta, Turkey
| | - Melike Erkan
- Department of Biology, Faculty of Science, Istanbul University, Istanbul, Turkey
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22
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Tang W, Zheng X, Li D, Xiao Y, Yang C, Shang S, Shi M, Zhu Y. Effects of sodium fluoride on the reproductive development of Bombyx mori. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2018; 64:41-47. [PMID: 30293049 DOI: 10.1016/j.etap.2018.09.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 08/27/2018] [Accepted: 09/20/2018] [Indexed: 06/08/2023]
Abstract
Bombyx mori was used as a model to evaluate the reproductive toxicity of NaF in insects. Significant reduction in cocoon quality, survival rate, fecundity, and hatchability were observed upon NaF treatment groups. Fluoride determination indicated that F- has a cumulative effect on the gonad of silkworm. High-performance liquid chromatography revealed that the testosterone content of males was decreased in NaF-treated groups, and enzyme-linked immunosorbent assay showed that the estradiol content was decreased in NaF-treated females. Ultrastructural observation of testicles of silkworm larvae revealed mitochondrial turgescence, endoplasmic reticulum destruction, the appearance of vacuoles and lysosomes, and apoptosis and necrosis of cells in NaF-treated groups. Altered tail length and tail DNA content in Comet assays further confirmed DNA damage in NaF-treated larvae. We demonstrated reproductive toxicity of fluoride toward silkworm at physiological and biochemical levels, and the results provide a theoretical basis for revealing the reproductive toxicity of fluoride in terrestrial insects.
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Affiliation(s)
- Wenchao Tang
- School of Biotechnology, Southwest University, Chongqing, China; School of Basic Medicine, Guiyang University of Chinese Medicine, Guizhou, China.
| | - Xi Zheng
- School of Biotechnology, Southwest University, Chongqing, China
| | - Dan Li
- School of Biotechnology, Southwest University, Chongqing, China
| | - Yuanyuan Xiao
- School of Life Sciences, Southwest University, Chongqing, China
| | - Chengfei Yang
- School of Biotechnology, Southwest University, Chongqing, China
| | - Shan Shang
- School of Biotechnology, Southwest University, Chongqing, China
| | - Min Shi
- School of Biotechnology, Southwest University, Chongqing, China
| | - Yong Zhu
- School of Biotechnology, Southwest University, Chongqing, China.
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23
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Teng Y, Zhang J, Zhang Z, Feng J. The Effect of Chronic Fluorosis on Calcium Ions and CaMKIIα, and c-fos Expression in the Rat Hippocampus. Biol Trace Elem Res 2018; 182:295-302. [PMID: 28730575 DOI: 10.1007/s12011-017-1098-8] [Citation(s) in RCA: 12] [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: 06/06/2017] [Accepted: 07/10/2017] [Indexed: 11/26/2022]
Abstract
This study investigated neurotoxicity of chronic fluorosis in the rat hippocampus. Newly weaning, male, Sprague-Dawley (SD) rats were administered 15, 30, and 60 mg/L sodium fluoride (NaF) solution (fluorine ion concentration 8.25, 16.50, and 33.00 mg/L, respectively), and tap water, for 18 months. The neurotoxicological mechanism was examined with a focus on intracellular calcium overload. Results showed that as the fluoride concentration increased, calcium ion concentration [Ca2+], the expression of calcium/calmodulin-dependent protein kinase II α (CaMKIIα), and the expression of catus proto-oncogene protein c-fos (c-fos) all tend to increase. Compared to the control group, Ca2+, CaMKIIα, and c-fos significantly increased (P < 0.05) in the moderate-fluoride and the high-fluoride groups. These results indicate that Ca2+/CaMKIIα/c-fos channel signal may be the molecular mechanism of central nervous system damage caused by chronic fluoride intoxication. Moreover, elevated Ca2+ concentration in the hippocampus may be the initiating factor of neuronal apoptosis induced by fluoride.
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Affiliation(s)
- Yao Teng
- College of Environmental Science and Engineering, Qingdao University, Qingdao, Shandong, China
| | - Jing Zhang
- College of Chemistry and Life Science, Qingdao Technical College, Qiantangjiang Road, Qingdao, Shandong, 266555, China.
| | - Zigui Zhang
- Laboratory of Pollution Ecology, Xingzhi College, Zhejiang Normal University, Yingbin Avenue, Jinhua, Zhejiang, 321004, China.
| | - Juan Feng
- College of Environmental Science and Engineering, Qingdao University, Qingdao, Shandong, China
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24
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Ommati MM, Heidari R, Jamshidzadeh A, Zamiri MJ, Sun Z, Sabouri S, Wang J, Ahmadi F, Javanmard N, Seifi K, Mousapour S, Yeganeh BS. Dual effects of sulfasalazine on rat sperm characteristics, spermatogenesis, and steroidogenesis in two experimental models. Toxicol Lett 2018; 284:46-55. [DOI: 10.1016/j.toxlet.2017.11.034] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Revised: 11/21/2017] [Accepted: 11/27/2017] [Indexed: 01/27/2023]
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25
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Yu Y, Han Y, Niu R, Wang J, Manthari RK, Ommati MM, Sun Z. Ameliorative Effect of VE, IGF-I, and hCG on the Fluoride-Induced Testosterone Release Suppression in Mice Leydig Cells. Biol Trace Elem Res 2018; 181:95-103. [PMID: 28462439 DOI: 10.1007/s12011-017-1023-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 04/11/2017] [Indexed: 12/22/2022]
Abstract
Excessive consumption of fluoride (F) through drinking, eating, and/or environmental contaminants induces chronic toxicity known as fluorosis. Our previous research has shown that fluorosis was associated with male reproductive disorders. The current study is designed to explain the protective effect of vitamin E (VE), insulin-like growth factor-I (IGF-I), and human chorionic gonadotropin (hCG) against natrium fluoride (NaF)-induced alterations in isolated Leydig cells (LCs). These NaF-induced alterations include decreased cell proliferation, steroidogenesis, and relative gene expression. Isolated LCs were incubated with NaF (0, 5, 20 mg/L) and/or 10 μg/ml VE, 100 ng/ml IGF-I, and 100 IU/ml hCG. NaF-treated cells' ability to secrete testosterone (T) was significantly less than other treated groups (P < 0.05). Additionally, in NaF-treated cells, there was a significant upregulation of certain relative mRNA expressions such as Star and Cyp11a, as well as significantly less cell proliferation in a dose-dependent manner (P < 0.05). These data clearly show that VE, IGF-1, and hCG have a protective effect in the LCs functions. Taken together, the final results of this study shown herein are consistent with the assumption that VE, IGF-I, and hCG volunteered ameliorative effects against the deleterious effects of NaF through their protective activity. Although it is hypothesized that ameliorative effects might have been involved, the fundamental pathway(s) remain(s) to be illuminated. Graphical Abstract ᅟ.
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Affiliation(s)
- Yuxiang Yu
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China
| | - Yongli Han
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China
| | - Ruiyan Niu
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China
| | - Jundong Wang
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China
| | - Ram Kumar Manthari
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China
| | - Mohammad Mehdi Ommati
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China.
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China.
- Department of Animal Science, College of Agriculture, Shiraz University, Shiraz, 71441-65186, Iran.
| | - Zilong Sun
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China.
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China.
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26
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Liang S, Nie ZW, Zhao M, Niu YJ, Shin KT, Cui XS. Sodium fluoride exposure exerts toxic effects on porcine oocyte maturation. Sci Rep 2017; 7:17082. [PMID: 29213094 PMCID: PMC5719058 DOI: 10.1038/s41598-017-17357-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 11/22/2017] [Indexed: 01/17/2023] Open
Abstract
Excessive long-term fluoride intake is associated with several health problems, including infertility. However, limited information is available on the toxic effects of fluoride exposure on the female reproductive system, especially oocyte maturation. In this study, we investigated the toxic effect of sodium fluoride (NaF) exposure on porcine oocyte maturation and its possible underlying mechanisms. Our results showed that NaF exposure during porcine oocyte maturation inhibited cumulus cell expansion and impaired polar body extrusion. Cell cycle analysis showed that NaF exposure blocked meiotic resumption, disturbed spindle dynamics, disrupted chromosome separation, and increased aneuploidy in porcine oocytes. Moreover, NaF exposure disturbed mitochondrial function, triggered DNA damage response, and induced early apoptosis in porcine oocytes. NaF exposure also induced oxidative stress, decreased GSH level, and increased cathepsin B activity in and impaired the further development potential of porcine oocytes, as indicated by a decrease in blastocyst formation rate, increase in apoptosis, and inhibition of cell proliferation. Together, these results indicate that NaF exposure impairs the maturation capacity of porcine oocytes by inhibiting cumulus cell expansion, disturbing cytoskeletal dynamics, and blocking nuclear and cytoplasmic maturation, thus decreasing the quality and affecting the subsequent embryonic development potential of porcine oocytes.
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Affiliation(s)
- Shuang Liang
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, 361-763, Republic of Korea.,Department of Animal Sciences, College of Animal Sciences, Jilin University, Changchun, 130062, China
| | - Zheng-Wen Nie
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, 361-763, Republic of Korea
| | - Minghui Zhao
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, 361-763, Republic of Korea
| | - Ying-Jie Niu
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, 361-763, Republic of Korea
| | - Kyung-Tae Shin
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, 361-763, Republic of Korea
| | - Xiang-Shun Cui
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, 361-763, Republic of Korea.
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27
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Sharma D, Singh A, Verma K, Paliwal S, Sharma S, Dwivedi J. Fluoride: A review of pre-clinical and clinical studies. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2017; 56:297-313. [PMID: 29091818 DOI: 10.1016/j.etap.2017.10.008] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 10/16/2017] [Accepted: 10/17/2017] [Indexed: 06/07/2023]
Abstract
Fluoride is ubiquitous in environment and profound in bones, teeth and calcified tissues of human body. Fluoride has been the topic of regular discussion and investigations. Besides its toxicity, fluoride has also been examined for its beneficial effects like prevention and treatment of tooth decay, microbial infection, inflammation, cancer, occurrence of renal stone and many more. Since last many decades, several efforts have been made at pre-clinical and clinical level to understand role of fluoride in biological system. The present review gives a brief account of prevalence, sources of fluoride toxicity and pre-clinical and clinical studies carried out on effects of fluoride in last six decades.
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Affiliation(s)
- Divya Sharma
- Department of Pharmacy, Banasthali University, Banasthali, India
| | - Aarti Singh
- Department of Chemistry, Banasthali University, Banasthali, India
| | - Kanika Verma
- Department of Pharmacy, Banasthali University, Banasthali, India
| | - Sarvesh Paliwal
- Department of Pharmacy, Banasthali University, Banasthali, India
| | - Swapnil Sharma
- Department of Pharmacy, Banasthali University, Banasthali, India.
| | - Jaya Dwivedi
- Department of Chemistry, Banasthali University, Banasthali, India
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28
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Ommati MM, Tanideh N, Rezakhaniha B, Wang J, Sabouri S, Vahedi M, Dormanesh B, Koohi Hosseinabadi O, Rahmanifar F, Moosapour S, Akhlaghi A, Heidari R, Zamiri MJ. Is immunosuppression, induced by neonatal thymectomy, compatible with poor reproductive performance in adult male rats? Andrology 2017; 6:199-213. [PMID: 29195019 DOI: 10.1111/andr.12448] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 10/22/2017] [Accepted: 10/25/2017] [Indexed: 12/12/2022]
Abstract
With increasing knowledge that the immune system has a major impact on reproductive health, the potential for cells arising in organs such as the thymus to alleviate oxidative stress has been revealed. This study addresses the impact of neonatal thymectomy on male reproductive function in pubertal and adult animals. Neonatal Sprague Dawley rats were allotted to four treatments consisting of fully thymectomized, partially thymectomized, intact, and sham-operated rats. Half of the rats in each treatment were sacrificed at 40 and the other half at 80 days of age. Testicular volume, ventral prostate and spleen weight, several sperm attributes (concentration, motility, livability, membrane integrity, sperm penetration into mucus, total antioxidant capacity, mitochondrial dehydrogenase activity), plasma superoxide dismutase, glutathione, and testosterone level as well as fertility decreased in thymectomized rats. Adrenal gland weight, sperm malondialdehyde level, indices of oxidative stress, sperm abnormality, testicular and sperm lipid peroxidation, protein carbonylation, and sperm reactive oxygen species generation increased in thymectomized rats. In thymectomized rats, the testes contained high levels of malondialdehyde but low levels of glutathione and ferric-reducing antioxidant power. Epididymal sperm reactive oxygen species, blood lipid peroxidation, and oxidative stress indices in blood and spermatozoa were highest in fully thymectomized, intermediate in partially thymectomized, and lowest in both pubertal and mature control rats. Blood levels of superoxide dismutase, lipid peroxidation indices, and testosterone, and mitochondrial adenosine triphosphate and dehydrogenase activities in epididymal spermatozoa were lowest in fully thymectomized, intermediate in partially thymectomized, and highest in both pubertal and mature control rats. The data indicated that increased oxidative stress and mitochondrial dysfunction might play a role in the mechanism of immunosuppression-induced testicular and sperm abnormalities.
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Affiliation(s)
- M M Ommati
- Department of Animal Science, College of Agriculture, Shiraz University, Shiraz, Iran.,Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.,College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, China
| | - N Tanideh
- Department of Pharmacology, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - J Wang
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, China
| | - S Sabouri
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, China
| | - M Vahedi
- Center of Comparative and Experimental Medicine, Shiraz, Iran
| | - B Dormanesh
- AJA University of Medical Sciences, Tehran, Iran
| | | | - F Rahmanifar
- Department of Basic Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - S Moosapour
- Department of Animal Science, College of Agriculture, Shiraz University, Shiraz, Iran
| | - A Akhlaghi
- Department of Animal Science, College of Agriculture, Shiraz University, Shiraz, Iran
| | - R Heidari
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - M J Zamiri
- Department of Animal Science, College of Agriculture, Shiraz University, Shiraz, Iran
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29
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Suzuki M, Ikeda A, Bartlett JD. Sirt1 overexpression suppresses fluoride-induced p53 acetylation to alleviate fluoride toxicity in ameloblasts responsible for enamel formation. Arch Toxicol 2017; 92:1283-1293. [PMID: 29185024 DOI: 10.1007/s00204-017-2135-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 11/23/2017] [Indexed: 12/21/2022]
Abstract
Low-dose fluoride is an effective caries prophylactic, but high-dose fluoride is an environmental health hazard that causes skeletal and dental fluorosis. Treatments to prevent fluorosis and the molecular pathways responsive to fluoride exposure remain to be elucidated. Previously we showed that fluoride activates SIRT1 as an adaptive response to protect cells. Here, we demonstrate that fluoride induced p53 acetylation (Ac-p53) [Lys379], which is a SIRT1 deacetylation target, in ameloblast-derived LS8 cells in vitro and in enamel organ in vivo. Here we assessed SIRT1 function on fluoride-induced Ac-p53 formation using CRISPR/Cas9-mediated Sirt1 knockout (LS8Sirt/KO) cells or CRISPR/dCas9/SAM-mediated Sirt1 overexpressing (LS8Sirt1/over) cells. NaF (5 mM) induced Ac-p53 formation and increased cell cycle arrest via Cdkn1a/p21 expression in Wild-type (WT) cells. However, fluoride-induced Ac-p53 was suppressed by the SIRT1 activator resveratrol (50 µM). Without fluoride, Ac-p53 persisted in LS8Sirt/KO cells, whereas it decreased in LS8Sirt1/over. Fluoride-induced Ac-p53 formation was also suppressed in LS8Sirt1/over cells. Compared to WT cells, fluoride-induced Cdkn1a/p21 expression was elevated in LS8Sirt/KO and these cells were more susceptible to fluoride-induced growth inhibition. In contrast, LS8Sirt1/over cells were significantly more resistant. In addition, fluoride-induced cytochrome-c release and caspase-3 activation were suppressed in LS8Sirt1/over cells. Fluoride induced expression of the DNA double strand break marker γH2AX in WT cells and this was augmented in LS8Sirt1/KO cells, but was attenuated in LS8Sirt1/over cells. Our results suggest that SIRT1 deacetylates Ac-p53 to mitigate fluoride-induced cell growth inhibition, mitochondrial damage, DNA damage and apoptosis. This is the first report implicating Ac-p53 in fluoride toxicity.
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Affiliation(s)
- Maiko Suzuki
- Division of Biosciences, College of Dentistry, The Ohio State University, Columbus, OH, 43210, USA
| | - Atsushi Ikeda
- Division of Biosciences, College of Dentistry, The Ohio State University, Columbus, OH, 43210, USA
| | - John D Bartlett
- Division of Biosciences, College of Dentistry, The Ohio State University, Columbus, OH, 43210, USA.
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30
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Miao L, Li L, Qi M, Zhou M, Zhang N, Zou X. Effects of Excess Dietary Fluoride on Serum Biochemical Indices, Egg Quality, and Concentrations of Fluoride in Soft Organs, Eggs, and Serum of Laying Hens. Biol Trace Elem Res 2017; 180:146-152. [PMID: 28281223 DOI: 10.1007/s12011-017-0973-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Accepted: 02/15/2017] [Indexed: 10/20/2022]
Abstract
This study was conducted to investigate the effects of excess dietary fluoride (F) on serum biochemical indices, egg quality, and concentrations of F in soft tissues, eggs, and serum of laying hens. Commercial laying hens (n = 576, 51 weeks of age) were randomly allotted to 6 treatments with 6 replicates of 16 birds. The basal diets contained fluorine inclusions at a level of 16 mg/kg, and graded sodium fluoride was added to the basal diet to achieve fluorine inclusions, respectively, at a level of 200, 400, 600, 800, and 1000 mg/kg in the experimental diets. Dietary F levels at 600, 800, and 1000 mg/kg decreased (P < 0.05) albumin height and yolk color, while eggshell strength and eggshell thickness significantly decreased at 800 and 1000 mg/kg, respectively, compared with the control group. Fluoride concentrations in eggshell, albumin, yolk, liver, kidney, ovary, and oviduct responded to dietary F levels positively, and F concentrations in eggshell were the highest. Fluorine concentrations in albumin and yolk increased with the feeding time at the same dietary F levels (P < 0.05). Dietary F level at 400 mg/kg increased serum calcium level and activity of glutamic oxalacetic transaminase (P < 0.05). In conclusion, dietary F levels at 600 mg/kg decreased albumin height and yolk color, while eggshell strength and eggshell thickness significantly decreased at 800 and 1000 mg/kg, respectively. F concentrations in soft tissues, albumin, yolk, and eggshell of layers had a positive correlation with dietary F levels. By disturbing Ca and phosphorus metabolism, dietary F levels affected the formation of eggshell, reducing eggshell strength and eggshell thickness.
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Affiliation(s)
- Liping Miao
- Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou, 310058, China
| | - Lanlan Li
- Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou, 310058, China
| | - Mingxing Qi
- Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou, 310058, China
| | - Minyao Zhou
- Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou, 310058, China
| | - Nannan Zhang
- Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou, 310058, China
| | - Xiaoting Zou
- Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou, 310058, China.
- Key Laboratory for Molecular Animal Nutrition of Ministry of Education, Feed Science Institute, College of Animal Science, Zhejiang University (Zijingang Campus), Hangzhou, 310058, China.
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31
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Zhang J, Zhu Y, Shi Y, Han Y, Liang C, Feng Z, Zheng H, Eng M, Wang J. Fluoride-Induced Autophagy via the Regulation of Phosphorylation of Mammalian Targets of Rapamycin in Mice Leydig Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:8966-8976. [PMID: 28927274 DOI: 10.1021/acs.jafc.7b03822] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Fluoride is known to impair testicular function and decrease testosterone levels, yet the underlying mechanisms remain inconclusive. The objective of this study is to investigate the roles of autophagy in fluoride-induced male reproductive toxicity using both in vivo and in vitro Leydig cell models. Using transmission electron microscopy and monodansylcadaverine staining, we observed increasing numbers of autophagosomes in testicular tissue, especially in Leydig cells of fluoride-exposed mice. Further study revealed that fluoride increased the levels of mRNA and protein expression of autophagy markers LC3, Beclin1, and Atg 5 in primary Leydig cells. Furthermore, fluoride inhibited the phosphorylation of mammalian targets of rapamycin and 4EBP1, which in turn resulted in a decrease in the levels of AKT and PI3K mRNA expression, as well as an elevation of the level of AMPK expression in both testes and primary Leydig cells. Additionally, fluoride exposure significantly changed the mRNA expression of the PDK1, TSC, and Atg13 regulator genes in primary Leydig cells but not in testicular cells. Taken together, our findings highlight the roles of autophagy in fluoride-induced testicular and Leydig cell damage and contribute to the elucidation of the underlying mechanisms of fluoride-induced male reproductive toxicity.
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Affiliation(s)
- Jianhai Zhang
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University , Taigu, Shanxi 030801, China
| | - Yuchen Zhu
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University , Taigu, Shanxi 030801, China
| | - Yan Shi
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University , Taigu, Shanxi 030801, China
| | - Yongli Han
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University , Taigu, Shanxi 030801, China
| | - Chen Liang
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University , Taigu, Shanxi 030801, China
| | - Zhiyuan Feng
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University , Taigu, Shanxi 030801, China
| | - Heping Zheng
- Department of Molecular Physiology and Biological Physics, University of Virginia , Charlottesville, Virginia 22908, United States
| | - Michelle Eng
- Lewis Katz School of Medicine, Temple University , Philadelphia, Pennsylvania 19140, United States
| | - Jundong Wang
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University , Taigu, Shanxi 030801, China
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32
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Sun Z, Xue X, Zhang Y, Niu R, Wang J. Effect of sodium fluoride on the sperm mitochondrial DNA in mice. Biochem Biophys Res Commun 2017; 492:295-299. [DOI: 10.1016/j.bbrc.2017.08.129] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 08/28/2017] [Indexed: 02/03/2023]
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33
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Nezhad Sistani M, Maleki A, Salimi M, Ghaffari Novin M, Nazarian H. Exposure of neonatal mice to Sevoflurane may induce male germ cell apoptosis in testicular tissue after puberty. Int J Reprod Biomed 2017. [DOI: 10.29252/ijrm.15.8.471] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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34
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Sana S, Ghosh S, Das N, Sarkar S, Mandal AK. Vesicular melatonin efficiently downregulates sodium fluoride-induced rat hepato- and broncho-TNF-α, TGF-β expressions, and associated oxidative injury: a comparative study of liposomal and nanoencapsulated forms. Int J Nanomedicine 2017; 12:4059-4071. [PMID: 28603418 PMCID: PMC5457176 DOI: 10.2147/ijn.s124119] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The importance of fluoride as a natural and industrial toxicant is recognized worldwide. We evaluated the regulating role and biological effect of vesicular (liposomal and nanoencapsulated) melatonin (N-acetyl-5-methoxytryptamine) for drug delivery and controlled release on the depletion of inflammatory mediators, as well as oxidative damage in sodium fluoride (NaF)-treated lungs and liver. Hepatic and bronchial damage was induced in Swiss albino rats with a single acute ingestion of NaF (48 mg/kg body weight, oral gavage). NaF exposure caused the generation of reactive oxygen species (ROS); upregulation of TNF-α and TGF-β; decreased activities of antioxidant systems (glutathione, glutathione-S-transferase, superoxide dismutase, catalase), succinate dehydrogenase, membrane microviscosity, and membrane potential; increased activity of lipid peroxidation and nicotinamide adenine dinucleotide hydride oxidase; and increased hepatic and nephrite toxicities (P<0.001) compared to those in normal animals. Charge (-ve/+ve)-specific single liposomal (dicetyl phosphate/stearylamine) and nanoencapsulated melatonin (4.46 mg/kg body weight, intravenous) treatments (2 hours after NaF exposure) significantly (P<0.01/0.001) and maximally (P<0.001) inhibited all alterations developed in NaF-mediated oxidative injuries in rat liver (+ve) and lungs (-ve), demonstrating their strong free radical scavenging, antioxidant and antigenotoxic properties, and vesicular efficiencies of targeting. Overall, these results suggest that nanoencapsulated melatonin might be considered as a more powerful remedial therapy in comparison to liposomes, in terms of its efficacy in regulating NaF-intoxicated oxidative injury.
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Affiliation(s)
- Suvomoy Sana
- Drug Development, Diagnostics and Biotechnology, CSIR-Indian Institute of Chemical Biology, West Bengal, India
| | - Swarupa Ghosh
- Drug Development, Diagnostics and Biotechnology, CSIR-Indian Institute of Chemical Biology, West Bengal, India
| | - Nirmalendu Das
- Drug Development, Diagnostics and Biotechnology, CSIR-Indian Institute of Chemical Biology, West Bengal, India
| | - Sibani Sarkar
- Drug Development, Diagnostics and Biotechnology, CSIR-Indian Institute of Chemical Biology, West Bengal, India
| | - Ardhendu Kumar Mandal
- Drug Development, Diagnostics and Biotechnology, CSIR-Indian Institute of Chemical Biology, West Bengal, India
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Suzuki M, Everett ET, Whitford GM, Bartlett JD. 4-phenylbutyrate Mitigates Fluoride-Induced Cytotoxicity in ALC Cells. Front Physiol 2017; 8:302. [PMID: 28553235 PMCID: PMC5425599 DOI: 10.3389/fphys.2017.00302] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 04/25/2017] [Indexed: 12/13/2022] Open
Abstract
Chronic fluoride over-exposure during pre-eruptive enamel development can cause dental fluorosis. Severe dental fluorosis is characterized by porous, soft enamel that is vulnerable to erosion and decay. The prevalence of dental fluorosis among the population in the USA, India and China is increasing. Other than avoiding excessive intake, treatments to prevent dental fluorosis remain unknown. We previously reported that high-dose fluoride induces endoplasmic reticulum (ER) stress and oxidative stress in ameloblasts. Cell stress induces gene repression, mitochondrial damage and apoptosis. An aromatic fatty acid, 4-phenylbutyrate (4PBA) is a chemical chaperone that interacts with misfolded proteins to prevent ER stress. We hypothesized that 4PBA ameliorates fluoride-induced ER stress in ameloblasts. To determine whether 4PBA protects ameloblasts from fluoride toxicity, we analyzed gene expression of Tgf-β1, Bcl2/Bax ratio and cytochrome-c release in vitro. In vivo, we measured fluorosis levels, enamel hardness and fluoride concentration. Fluoride treated Ameloblast-lineage cells (ALC) had decreased Tgf-β1 expression and this was reversed by 4PBA treatment. The anti-apoptotic Blc2/Bax ratio was significantly increased in ALC cells treated with fluoride/4PBA compared to fluoride treatment alone. Fluoride treatment induced cytochrome-c release from mitochondria into the cytosol and this was inhibited by 4PBA treatment. These results suggest that 4PBA mitigates fluoride-induced gene suppression, apoptosis and mitochondrial damage in vitro. In vivo, C57BL/6J mice were provided fluoridated water for six weeks with either fluoride free control-chow or 4PBA-containing chow (7 g/kg 4PBA). With few exceptions, enamel microhardness, fluorosis levels, and fluoride concentrations of bone and urine did not differ significantly between fluoride treated animals fed with control-chow or 4PBA-chow. Although 4PBA mitigated high-dose fluoride toxicity in vitro, a diet rich in 4PBA did not attenuate dental fluorosis in rodents. Perhaps, not enough intact 4PBA reaches the rodent ameloblasts necessary to reverse the effects of fluoride toxicity. Further studies will be required to optimize protocols for 4PBA administration in vivo in order to evaluate the effect of 4PBA on dental fluorosis.
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Affiliation(s)
- Maiko Suzuki
- Division of Biosciences, College of Dentistry, The Ohio State UniversityColumbus, OH, USA
| | - Eric T Everett
- Department of Pediatric Dentistry and The Carolina Center for Genome Sciences, University of North CarolinaChapel Hill, NC, USA
| | - Gary M Whitford
- Department of Oral Biology, College of Dental Medicine, Georgia Regents UniversityAugusta, GA, USA
| | - John D Bartlett
- Division of Biosciences, College of Dentistry, The Ohio State UniversityColumbus, OH, USA
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36
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Su K, Sun Z, Niu R, Lei Y, Cheng J, Wang J. Cell cycle arrest and gene expression profiling of testis in mice exposed to fluoride. ENVIRONMENTAL TOXICOLOGY 2017; 32:1558-1565. [PMID: 27862939 DOI: 10.1002/tox.22377] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 10/02/2016] [Accepted: 10/05/2016] [Indexed: 06/06/2023]
Abstract
Exposure to fluoride results in low reproductive capacity; however, the mechanism underlying the impact of fluoride on male productive system still remains obscure. To assess the potential toxicity in testis of mice administrated with fluoride, global genome microarray and real-time PCR were performed to detect and identify the altered transcriptions. The results revealed that 763 differentially expressed genes were identified, including 330 up-regulated and 433 down-regulated genes, which were involved in spermatogenesis, apoptosis, DNA damage, DNA replication, and cell differentiation. Twelve differential expressed genes were selected to confirm the microarray results using real-time PCR, and the result kept the same tendency with that of microarray. Furthermore, compared with the control group, more apoptotic spermatogenic cells were observed in the fluoride group, and the spermatogonium were markedly increased in S phase and decreased in G2/M phase by fluoride. Our findings suggested global genome microarray provides an insight into the reproductive toxicity induced by fluoride, and several important biological clues for further investigations. © 2016 Wiley Periodicals, Inc. Environ Toxicol 32: 1558-1565, 2017.
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Affiliation(s)
- Kai Su
- College of Animal Science and Veterinary Medicine, Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China
- Taiyuan Zoo, Taiyuan, Shanxi, 030009, People's Republic of China
| | - Zilong Sun
- College of Animal Science and Veterinary Medicine, Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China
| | - Ruiyan Niu
- College of Animal Science and Veterinary Medicine, Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China
| | - Ying Lei
- Taiyuan Zoo, Taiyuan, Shanxi, 030009, People's Republic of China
| | - Jing Cheng
- Medical Systems Biology Research Center, Department of Biomedical Engineering, Tsinghua University School of Medicine, Beijing, 100084, People's Republic of China
| | - Jundong Wang
- College of Animal Science and Veterinary Medicine, Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China
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Sun Z, Nie Q, Zhang L, Niu R, Wang J, Wang S. Fluoride reduced the immune privileged function of mouse Sertoli cells via the regulation of Fas/FasL system. CHEMOSPHERE 2017; 168:318-325. [PMID: 27810530 DOI: 10.1016/j.chemosphere.2016.10.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 09/09/2016] [Accepted: 10/07/2016] [Indexed: 06/06/2023]
Abstract
Previous investigations have demonstrated the adverse impacts of fluoride on Sertoli cells (SCs), such as oxidative stress and apoptosis. SCs are the crucial cellular components that can create the immune privileged environment in testis. However, the effect of fluoride on SCs immune privilege is unknown. In this study, mouse SCs were exposed to sodium fluoride with varying concentrations of 10-5, 10-4, and 10-3 mol/L to establish the model of fluoride-treated SCs (F-SCs) in vitro. After 48 h of incubation, F-SCs were transplanted underneath the kidney capsule of mice for 21 days, or cocultured with spleen lymphocytes for another 48 h. Immunohistochemical analysis of GATA4 in SCs grafts underneath kidney capsule presented less SCs distribution and obvious immune cell infiltration in F-SCs groups. In addition, the levels of FasL protein and mRNA in non-cocultured F-SCs decreased with the increase of fluoride concentration. When cocultured with F-SCs, lymphocytes presented significantly high cell viability and low apoptosis in F-SCs groups. Protein and mRNA expressions of FasL in cocultured F-SCs and Fas in lymphocytes were reduced, and the caspase 8 and caspase 3 mRNA levels were also decreased in fluoride groups in a dose-dependent manner. These findings indicated that fluoride influenced the testicular immune privilege through disturbing the Fas/FasL system.
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Affiliation(s)
- Zilong Sun
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China; Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Qingli Nie
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Lianjie Zhang
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Ruiyan Niu
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China; Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Jundong Wang
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China; Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
| | - Shaolin Wang
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, PR China.
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Li W, Jiang B, Cao X, Xie Y, Huang T. Protective effect of lycopene on fluoride-induced ameloblasts apoptosis and dental fluorosis through oxidative stress-mediated Caspase pathways. Chem Biol Interact 2017; 261:27-34. [DOI: 10.1016/j.cbi.2016.11.021] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 09/24/2016] [Accepted: 11/17/2016] [Indexed: 01/03/2023]
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Ma Y, Ma Z, Yin S, Yan X, Wang J. Arsenic and fluoride induce apoptosis, inflammation and oxidative stress in cultured human umbilical vein endothelial cells. CHEMOSPHERE 2017; 167:454-461. [PMID: 27750169 DOI: 10.1016/j.chemosphere.2016.10.025] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 10/06/2016] [Accepted: 10/07/2016] [Indexed: 06/06/2023]
Abstract
Excessive amount of inorganic arsenic (iAs) and fluoride (F) coexist in drinking water in many regions, which is associated with high risk of vascular diseases. However, the underlying mechanisms are not well studied. The present study was to evaluate the effects of iAs and F individual or combined exposure on endothelial activation and apoptosis in vitro. Primary human umbilical vein endothelial cells (HUVECs) were exposed to 5 μM As2O3 and/or 1 mM NaF. Changes in endothelial cell apoptosis, inflammation, oxidative stress and nitric oxide (NO) production were analyzed. The results showed that iAs and/or F induced significant increase in endothelial cell apoptosis and inflammation as indicated by the increase of mRNA and protein expression of vascular cell adhesion molecule-1, intercellular adhesion molecule-1, and pentraxin 3. Furthermore, iAs and/or F exposure induced intracellular reactive oxygen species and malondialdehyde generation. Results showed iAs and/or F exposure increased the activity of NADPH oxidase (NOX) and up-regulated the mRNA expression of NOX subunits p22phox. The results indicated that activation of NOX was related to oxidative stress induced by iAs and/or F. Also, iAs and/or F reduced NO production in HUVECs. The up-regulation of inflammation genes expression and oxidative stress in iAs and F co-exposed ECs were less pronounced as compared to single F-exposed cells, which showed an antagonistic effect between iAs and F. In conclusion, endothelial activation and apoptosis induced by iAs and/or F are potential mechanisms in their vascular toxicity. Oxidative stress and impaired NO production are involved in their pro-inflammatory and pro-apoptotic effects.
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Affiliation(s)
- Yanqin Ma
- College of Life Science, Shanxi Agricultural University, Taigu, Shanxi 030801, China; Shanxi Key Laboratory of Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Zhenhua Ma
- College of Life Science, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Shuqin Yin
- College of Life Science, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Xiaoyan Yan
- Health Toxicology Department, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Jundong Wang
- Shanxi Key Laboratory of Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China.
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Duan L, Zhu J, Wang K, Zhou G, Yang Y, Cui L, Huang H, Cheng X, Ba Y. Does Fluoride Affect Serum Testosterone and Androgen Binding Protein with Age-Specificity? A Population-Based Cross-Sectional Study in Chinese Male Farmers. Biol Trace Elem Res 2016; 174:294-299. [PMID: 27154732 DOI: 10.1007/s12011-016-0726-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 04/26/2016] [Indexed: 12/11/2022]
Abstract
Many studies have demonstrated that exposure to excess fluoride was associated with a variety of diseases. Little is known about the variation of testosterone (T) levels caused by fluoride exposure. The aim of this study is to explore the association of fluoride exposure and age with serum T and androgen-binding protein (ABP) levels in male farmers. A cross-sectional study was conducted in a county of Henan Province, China, including high fluoride exposure from drinking water villages and control villages. Male farmers aged 18-55 years old who lived in these villages were recruited by cluster sampling and divided into a higher fluoride exposure group (HFG) and a lower fluoride exposure group (LFG) according to the level of urinary fluoride. Levels of T and ABP in serum were measured using chemiluminescence immunoassay (CLIA) and enzyme-linked immunosorbent assay (ELISA) respectively. Markedly lower T levels were observed in male farmers from the HFG than in those from the LFG (t = 2.496, P < 0.05). Furthermore, younger farmers, 18-29 and 30-39 years old, may be the most likely to have lower T levels when exposed to fluoride (P < 0.05). No significant differences were observed in serum ABP levels in all male farmers between the two groups with different fluoride exposure. These results supported that excess fluoride exposure decreased serum T levels of male farmers with age-specificity.
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Affiliation(s)
- Leizhen Duan
- Department of Occupational and Environmental Health, Institute of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China
| | - Jingyuan Zhu
- Department of Occupational and Environmental Health, Institute of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China
| | - Keyan Wang
- Department of Occupational and Environmental Health, Institute of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China
| | - Guoyu Zhou
- Department of Occupational and Environmental Health, Institute of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China
| | - Yuejin Yang
- Kaifeng Center for Disease Prevention and Control, Kaifeng, Henan, 475000, People's Republic of China
| | - Liuxin Cui
- Department of Occupational and Environmental Health, Institute of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China
| | - Hui Huang
- Department of Occupational and Environmental Health, Institute of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China
| | - Xuemin Cheng
- Department of Occupational and Environmental Health, Institute of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China
| | - Yue Ba
- Department of Occupational and Environmental Health, Institute of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China.
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Carter CJ, Blizard RA. Autism genes are selectively targeted by environmental pollutants including pesticides, heavy metals, bisphenol A, phthalates and many others in food, cosmetics or household products. Neurochem Int 2016; 101:S0197-0186(16)30197-8. [PMID: 27984170 DOI: 10.1016/j.neuint.2016.10.011] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 10/18/2016] [Accepted: 10/26/2016] [Indexed: 11/21/2022]
Abstract
The increasing incidence of autism suggests a major environmental influence. Epidemiology has implicated many candidates and genetics many susceptibility genes. Gene/environment interactions in autism were analysed using 206 autism susceptibility genes (ASG's) from the Autworks database to interrogate ∼1 million chemical/gene interactions in the comparative toxicogenomics database. Any bias towards ASG's was statistically determined for each chemical. Many suspect compounds identified in epidemiology, including tetrachlorodibenzodioxin, pesticides, particulate matter, benzo(a)pyrene, heavy metals, valproate, acetaminophen, SSRI's, cocaine, bisphenol A, phthalates, polyhalogenated biphenyls, flame retardants, diesel constituents, terbutaline and oxytocin, inter alia showed a significant degree of bias towards ASG's, as did relevant endogenous agents (retinoids, sex steroids, thyroxine, melatonin, folate, dopamine, serotonin). Numerous other suspected endocrine disruptors (over 100) selectively targeted ASG's including paraquat, atrazine and other pesticides not yet studied in autism and many compounds used in food, cosmetics or household products, including tretinoin, soy phytoestrogens, aspartame, titanium dioxide and sodium fluoride. Autism polymorphisms influence the sensitivity to some of these chemicals and these same genes play an important role in barrier function and control of respiratory cilia sweeping particulate matter from the airways. Pesticides, heavy metals and pollutants also disrupt barrier and/or ciliary function, which is regulated by sex steroids and by bitter/sweet taste receptors. Further epidemiological studies and neurodevelopmental and behavioural research is warranted to determine the relevance of large number of suspect candidates whose addition to the environment, household, food and cosmetics might be fuelling the autism epidemic in a gene-dependent manner.
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Affiliation(s)
- C J Carter
- PolygenicPathways, Flat 2, 40 Baldslow Road, Hastings, East Sussex, TN34 2EY, UK.
| | - R A Blizard
- Molecular Psychiatry Laboratory, Mental Health Sciences Unit, University College, London, UK
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Wang HW, Zhou BH, Zhang S, Guo HW, Zhang JL, Zhao J, Tian EJ. Reproductive toxicity in male mice after exposure to high molybdenum and low copper concentrations. Toxicol Ind Health 2016; 32:1598-606. [DOI: 10.1177/0748233715569269] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
To evaluate the effects of dietary high molybdenum (HMo) and low copper (LCu) concentrations on reproductive toxicity of male mice, 80 mice were divided into 4 groups of 20. These groups were fed with the following: (1) normal control (NC) diet (NC group); (2) NC and HMo diets (HMo group); (3) LCu diet (LCu group); and (4) HMo and LCu diets (HMoLCu group). On the 50th and 100th day, superoxide dismutase (SOD), malondialdehyde (MDA), glutathione peroxidase (GSH-Px), and total antioxidant capacity (T-AOC) were analyzed to determine oxidative stress states. Morphological changes in testicular tissue were evaluated with hematoxylin and eosin staining and ultrastructural changes were monitored by transmission electron microscopy. The results showed that administration of HMo, LCu, and HMoLCu not only decreased sperm density and motility but also increased the rate of teratosperm occurrence. A significant increase in MDA content and a decrease in SOD, GSH-Px, and T-AOC contents were observed in LCu, HMo, and HMoLCu groups. Testicular tissues and cells of mice were damaged by HMo and the damages were more serious in the case of Cu deficiency. Exposure to HMo adversely affected the reproductive system of male mice, and dietary LCu plays key roles in HMo-induced reproductive toxicity.
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Affiliation(s)
- Hong-wei Wang
- College of Animal Science and Technology, Henan University of Science and Technology, Henan, People’s Republic of China
| | - Bian-hua Zhou
- College of Animal Science and Technology, Henan University of Science and Technology, Henan, People’s Republic of China
| | - Sen Zhang
- College of Animal Science and Technology, Henan University of Science and Technology, Henan, People’s Republic of China
- College of Veterinary Medicine, National Reference Laboratory of Veterinary Drug Residues, South China Agricultural University, Guangzhou, People’s Republic of China
| | - Hong-wei Guo
- Department of Biological Engineering, Zhengzhou College of Animal Husbandry Engineering, Zhengzhou, People’s Republic of China
| | - Ji-liang Zhang
- College of Animal Science and Technology, Henan University of Science and Technology, Henan, People’s Republic of China
| | - Jing Zhao
- College of Animal Science and Technology, Henan University of Science and Technology, Henan, People’s Republic of China
| | - Er-jie Tian
- College of Animal Science and Technology, Henan University of Science and Technology, Henan, People’s Republic of China
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43
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Sun Z, Zhang W, Li S, Xue X, Niu R, Shi L, Li B, Wang X, Wang J. Altered miRNAs expression profiling in sperm of mice induced by fluoride. CHEMOSPHERE 2016; 155:109-114. [PMID: 27108368 DOI: 10.1016/j.chemosphere.2016.04.053] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 03/21/2016] [Accepted: 04/14/2016] [Indexed: 06/05/2023]
Abstract
The reproductive toxicity of fluoride has become a major concern in the world. Fluoride can decrease the abilities of sperm capacitation, hyperactivation, chemotaxis, acrosome reaction and fertilization, but the studies on the responses of sperm small noncoding RNAs (sncRNAs), especially miRNAs, to fluoride exposure are lacking. miRNAs are demonstrated to influence sperm quality and male fertility by regulating gene expression at post-transcriptional levels or translational repression. The objective of this study is to analyze miRNA profiling in sperm of mice administrated with 25 and 100 mg L(-1) sodium fluoride (NaF) for 60 d using high-throughput sequencing technology. Along with reduced sperm concentration, survival, motility, and mitochondrial membrane potential, 31 differentially expressed known miRNAs were identified in fluoride groups, compared with the control group. 671 predicted target genes against the 16 altered miRNAs were mainly involved in protease inhibitor activity, apoptosis, ubiquitin mediated proteolysis, and signaling pathways of calcium, JAK-STAT, MAPK, p53, Wnt, which were proved to be directly related to sperm quality. These findings suggested that the altered sperm miRNAs could be potential biomarkers for fluoride reproductive toxicity.
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Affiliation(s)
- Zilong Sun
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China; Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
| | - Wen Zhang
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Sujuan Li
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Xingchen Xue
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Ruiyan Niu
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China; Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Lei Shi
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Baojun Li
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Xiaowen Wang
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Jundong Wang
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China; Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
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44
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Wei R, Luo G, Sun Z, Wang S, Wang J. Chronic fluoride exposure-induced testicular toxicity is associated with inflammatory response in mice. CHEMOSPHERE 2016; 153:419-425. [PMID: 27031805 DOI: 10.1016/j.chemosphere.2016.03.045] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 02/27/2016] [Accepted: 03/10/2016] [Indexed: 06/05/2023]
Abstract
Previous studies have indicated that fluoride (F) can affect testicular toxicity in humans and rodents. However, the mechanism underlying F-induced testicular toxicity is not well understood. This study was conducted to evaluate the sperm quality, testicular histomorphology and inflammatory response in mice followed F exposure. Healthy male mice were randomly divided into four groups with sodium fluoride (NaF) at 0, 25, 50, 100 mg/L in the drinking water for 180 days. At the end of the exposure, significantly increased percentage of spermatozoa abnormality was found in mice exposed to 50 and 100 mg/L NaF. Disorganized spermatogenic cells, vacuoles in seminiferous tubules and loss and shedding of sperm cells were also observed in the NaF treated group. In addition, chronic F exposure increased testicular interleukin-17(IL-17), interleukin-17 receptor C (IL-17RC), tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) in transcriptional levels, as well as IL-17 and TNF-α levels in translational levels. Interestingly, we observed that F treated group elevated testicular inducible nitric oxide synthase (iNOS) mRNA level and nitric oxide (NO) concentration. Taken together, these results indicated that testicular inflammatory response could contribute to chronic F exposure induced testicular toxicity in mice.
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Affiliation(s)
- Ruifen Wei
- Shanxi Key Laboratory of Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China; School of Optometry and Ophthalmology and Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou, Zhejiang 325027, China
| | - Guangying Luo
- Shanxi Key Laboratory of Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China; School of Optometry and Ophthalmology and Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou, Zhejiang 325027, China
| | - Zilong Sun
- Shanxi Key Laboratory of Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Shaolin Wang
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
| | - Jundong Wang
- Shanxi Key Laboratory of Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China.
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45
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Zhang J, Li Z, Qie M, Zheng R, Shetty J, Wang J. Sodium fluoride and sulfur dioxide affected male reproduction by disturbing blood-testis barrier in mice. Food Chem Toxicol 2016; 94:103-11. [PMID: 27237588 DOI: 10.1016/j.fct.2016.05.017] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 05/21/2016] [Accepted: 05/24/2016] [Indexed: 01/20/2023]
Abstract
Fluoride and sulfur dioxide (SO2), two well-known environmental toxicants, have been implicated to have adverse effects on male reproductive health in humans and animals. The objective of this study to investigate if the BTB is one of the pathways that lead to reproductive toxicity of sodium fluoride and sulfur dioxide alone or in combination, in view of the key role of blood testis barrier (BTB) in testis. The results showed that a marked decrease in sperm quality, and altered morphology and ultrastructure of BTB in testis of mice exposure to fluoride (100 mg NaF/L in drinking water) or/and sulfur dioxide (28 mg SO2/m(3), 3 h/day). Meanwhile, the mRNA expression levels of some vital BTB-associated proteins, including occluding, claudin-11, ZO-1, Ncadherin, α-catenin, and connexin-43 were all strikingly reduced after NaF exposure, although only the reduction of DSG-2 was statistically significant in all treatment groups. Moreover, the proteins expressions also decreased significantly in claudin-11, N-cadherin, α-catenin, connexin-43 and desmoglein-2 in mice treated with fluoride and/or SO2. These changes in BTB structure and constitutive proteins may therefore be connected with the low sperm quality in these mice. The role of fluoride should deserves more attention in this process.
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Affiliation(s)
- Jianhai Zhang
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Zhihui Li
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Mingli Qie
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Ruibo Zheng
- Shanxi Huawei Pharmaceutical Co. Ltd., Yuci, Shanxi, 030600, China
| | - Jagathpala Shetty
- Department of Cell Biology, Center for Research in Contraceptive and Reproductive Health, University of Virginia, Charlottesville, VA, 22908, USA
| | - Jundong Wang
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, China.
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Zhang S, Niu Q, Gao H, Ma R, Lei R, Zhang C, Xia T, Li P, Xu C, Wang C, Chen J, Dong L, Zhao Q, Wang A. Excessive apoptosis and defective autophagy contribute to developmental testicular toxicity induced by fluoride. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 212:97-104. [PMID: 26840522 DOI: 10.1016/j.envpol.2016.01.059] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 01/18/2016] [Accepted: 01/20/2016] [Indexed: 06/05/2023]
Abstract
Fluoride, a ubiquitous environmental contaminant, is known to impair testicular functions and fertility; however the underlying mechanisms remain obscure. In this study, we used a rat model to mimic human exposure and sought to investigate the roles of apoptosis and autophagy in testicular toxicity of fluoride. Sprague-Dawley rats were developmentally exposed to 25, 50, or 100 mg/L sodium fluoride (NaF) via drinking water from pre-pregnancy to post-puberty, and then the testes of offspring were excised on postnatal day 56. Our results demonstrated that developmental NaF exposure induced an enhanced testicular apoptosis, as manifested by a series of hallmarks such as caspase-3 activation, chromatin condensation and DNA fragmentation. Further study revealed that fluoride exposure elicited significant elevations in the levels of cell surface death receptor Fas with a parallel increase in cytoplasmic cytochrome c, indicating the involvement of both extrinsic and intrinsic apoptotic pathways. Intriguingly, fluoride treatment also simultaneously increased the number of autophagosomes and the levels of autophagy marker LC3-II but not Beclin1. Unexpectedly, the expression of p62, a substrate that is degraded by autophagy, was also significantly elevated, suggesting that the accumulated autophagosomes resulted from impaired autophagy degradation rather than increased formation. Importantly, these were associated with marked histopathological lesions including spermatogenic failure and germ cell loss, along with severe ultrastructural abnormalities in testes. Taken together, our findings provide deeper insights into roles of excessive apoptosis and defective autophagy in the aggravation of testicular damage, which could contribute to a better understanding of fluoride-induced male reproductive toxicity.
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Affiliation(s)
- Shun Zhang
- Department of Environmental Health and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, PR China
| | - Qiang Niu
- Department of Environmental Health and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, PR China
| | - Hui Gao
- Department of Environmental Health and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, PR China
| | - Rulin Ma
- Department of Environmental Health and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, PR China
| | - Rongrong Lei
- Department of Environmental Health and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, PR China
| | - Cheng Zhang
- Department of Environmental Health and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, PR China
| | - Tao Xia
- Department of Environmental Health and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, PR China
| | - Pei Li
- Department of Environmental Health and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, PR China
| | - Chunyan Xu
- Department of Environmental Health and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, PR China
| | - Chao Wang
- Department of Environmental Health and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, PR China
| | - Jingwen Chen
- Department of Environmental Health and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, PR China
| | - Lixing Dong
- Department of Environmental Health and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, PR China
| | - Qian Zhao
- Department of Environmental Health and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, PR China
| | - Aiguo Wang
- Department of Environmental Health and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, PR China.
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In silico prediction of microRNAs on fluoride induced sperm toxicity in mice. Food Chem Toxicol 2016; 98:34-49. [PMID: 27012587 DOI: 10.1016/j.fct.2016.03.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 03/07/2016] [Accepted: 03/10/2016] [Indexed: 01/06/2023]
Abstract
Fluorosis is an endemic global problem causing male reproductive impairment. F mediates male reproductive toxicity in mice down-regulating 63 genes involved in diverse biological processes - apoptosis, cell cycle, cell signaling, chemotaxis, electron transport, glycolysis, oxidative stress, sperm capacitation and spermatogenesis. We predicted the miRNAs down-regulating these 63 genes using TargetScan, DIANA and MicroCosm. The prediction tools identified 3059 miRNAs targeting 63 genes. Of the predicted interactions, 11 miRNAs (mmu-miR-103, -107, -122, -188a, -199a-5p, -205, -340-5p, -345-3p, -452-5p, -499, -878-3p) were commonly found in the three tools utilized and seven miRNAs (miR-9-5p, miR-511-3p, miR-7b-5p, miR-30e-5p, miR-17-5p, miR-122-5p and miR-541-5p) targeting six genes (Traf3, Rock2, Rgs8, Atp1b2, Cacna2d1 and Aldoa) were already validated experimentally in mice. The miRNA-mRNA network of the predicted miRNAs with its respective targets revealed the complex interaction within a biological process leading to sperm dysfunction on exposure to F. Our findings not only suggest that the predicted miRs furnish evidence, but also have the potential to serve as non-invasive biomarkers on F-induced sperm dysfunction. Our data contribute towards elucidating the function of miRNAs in the fluoride induced infertility. miRNA molecular pathways in F intoxication will open new avenues on the use of antagomirs in recovering fertility.
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Dong C, Cao J, Cao C, Han Y, Wu S, Wang S, Wang J. Effects of fluoride and aluminum on expressions of StAR and P450scc of related steroidogenesis in guinea pigs' testis. CHEMOSPHERE 2016; 147:345-351. [PMID: 26774298 DOI: 10.1016/j.chemosphere.2015.12.064] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Revised: 12/16/2015] [Accepted: 12/17/2015] [Indexed: 06/05/2023]
Abstract
A lot of studies have shown that fluoride and aluminum have toxic effect on male reproductive system, but the mechanism of which and the interaction between fluoride and aluminum is still unknown. This study investigated the effects of fluoride (NaF) or/and aluminum (AlCl3) on serum testosterone level, gene and protein expression levels of Steroidogenic Acute Regulatory Protein (StAR) and Cytochrome P450 cholesterol side chain cleavage enzyme (P450scc) in the testes of guinea pigs. Fifty-two guinea pigs were divided randomly into four groups (Control, HiF, HiAl and HiF + HiAl). Fluoride (150 mg NaF/L) or/and aluminum (300 mg AlCl3/L) were orally administrated to male guinea pigs for 13 weeks. The results showed that F and Al reduced number and elevated abnormal ratio of sperm. Meanwhile, the concentrations of serum testosterone in all experimental groups were decreased. P450scc protein expression was significantly reduced in all treatment groups, and StAR expression was decreased remarkably in HiF group and HiF + HiAl group. The levels of StAR mRNA in three groups were reduced by 53.9%, 21.4% and 33.4%, respectively, while the expressions of P450scc mRNA were reduced by 67.8%, 17.0% and 47.8%. Therefore, we concluded that F induced the reduction in testosterone and sperm amount, and thus in lower fertility, which might occur as a consequence of depressed StAR and P450scc mRNA expression. There were no synergistic effects between F and Al, instead, Al weakened the toxicity of F to some extents. The results indicated that Al had antagonism effects on F.
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Affiliation(s)
- Chunguang Dong
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China; Animal Husbandry and Veterinary Institute, Shanxi Academy of Agricultural Science, Taiyuan, Shanxi, 030032, People's Republic of China
| | - Jinling Cao
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China
| | - Chunfang Cao
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China
| | - Yichao Han
- Animal Husbandry and Veterinary Institute, Shanxi Academy of Agricultural Science, Taiyuan, Shanxi, 030032, People's Republic of China
| | - Shouyan Wu
- Animal Husbandry and Veterinary Institute, Shanxi Academy of Agricultural Science, Taiyuan, Shanxi, 030032, People's Republic of China
| | - Shaolin Wang
- College of Veterinary Medicine, China Agricultural Univerisity, Beijing, 100193, People's Republic of China.
| | - Jundong Wang
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China.
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Li M, Cao J, Chen J, Song J, Zhou B, Feng C, Wang J. Waterborne fluoride exposure changed the structure and the expressions of steroidogenic-related genes in gonads of adult zebrafish (Danio rerio). CHEMOSPHERE 2016; 145:365-375. [PMID: 26692514 DOI: 10.1016/j.chemosphere.2015.11.041] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 11/09/2015] [Accepted: 11/14/2015] [Indexed: 06/05/2023]
Abstract
Excessive fluoride in natural water ecosystem has been demonstrated to have adverse effects on reproductive system in humans and mammals, while the most vulnerable aquatic organisms were ignored. In this study, the effects of waterborne fluoride on growth performance, sex steroid hormone, histological structure, and the transcriptional profiles of sex steroid related genes were examined in both female and male zebrafish exposed to different concentrations of 0.79, 18.60, 36.83 mg L(-1) of fluoride for 30 and 60 d to investigate the effects of fluoride on reproductive system and the underlying toxic mechanisms caused by fluoride. The results showed that the body weight was remarkably decreased, the structure of ovary and testis were serious injured, and the T and E2 levels were significantly reduced in male zebrafish. The transcriptional profiles of steroidogenic related genes displayed phenomenal alterations, the expressions of pgr and cyp19a1a were significantly up-regulated, while the transcriptional levels of er, ar and hsd3β were decreased both in the ovary and testis, and hsd17β8 were down-regulated just in males. Taken together, these results demonstrated that fluoride could significantly inhibit the growth of zebrafish, and notably affect the reproductive system in both sex zebrafish by impairing the structure of ovary and testis, altering steroid hormone levels and steroidogenic genes expression related to the synthesis of sex hormones in zebrafish.
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Affiliation(s)
- MeiYan Li
- State Key Laboratory of Ecological Animal Husbandry and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801, Shanxi, China
| | - Jinling Cao
- State Key Laboratory of Ecological Animal Husbandry and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801, Shanxi, China
| | - Jianjie Chen
- State Key Laboratory of Ecological Animal Husbandry and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801, Shanxi, China
| | - Jie Song
- State Key Laboratory of Ecological Animal Husbandry and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801, Shanxi, China
| | - Bingrui Zhou
- State Key Laboratory of Ecological Animal Husbandry and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801, Shanxi, China
| | - Cuiping Feng
- State Key Laboratory of Ecological Animal Husbandry and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801, Shanxi, China
| | - Jundong Wang
- State Key Laboratory of Ecological Animal Husbandry and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801, Shanxi, China.
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50
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Sun Z, Zhang W, Xue X, Zhang Y, Niu R, Li X, Li B, Wang X, Wang J. Fluoride decreased the sperm ATP of mice through inhabiting mitochondrial respiration. CHEMOSPHERE 2016; 144:1012-1017. [PMID: 26439518 DOI: 10.1016/j.chemosphere.2015.09.061] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 09/11/2015] [Accepted: 09/14/2015] [Indexed: 06/05/2023]
Abstract
Fluoride-induced low sperm motility was observed in accumulated investigations. However, the effect of fluoride exposure on ATP generation which is essential to sperm motility remains to be elucidated. In this study, 120 healthy male mice were orally administrated with 0, 25, 50, and 100 mg L(-1) NaF for 90 d. Results showed that compared with controls, fluoride ingestion significantly reduced sperm count, survival, as well as mobility and total ATP level in sperm untreated with carbonyl cyanide m-chlorophenylhydrazone (CCCP) or pyruvate, which was used to establish glycolysis or mitochondrial respiration model, respectively. Data further revealed that sperm mobility and ATP level under mitochondrial respiration condition were significantly suppressed, while no statistical difference occurred in the model of glycolysis, indicating ATP derived from mitochondria was affected. Moreover, mRNA expressions of mitochondrial cytochrome b (mt-Cytb) and cytochrome c oxidase subunit 2 (mt-COX2), two important molecules in mitochondrial electron transport chain (ETC), were down-regulated in all fluoride treatment groups. Mitochondria in sperm of mice exposed to 100 mg L(-1) NaF appeared to be irregular and vacuolated. These findings suggested that decreased sperm motility induced by fluoride may result from low ATP generation due to the disturbed ETC in sperm mitochondrial.
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Affiliation(s)
- Zilong Sun
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China; Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Wen Zhang
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Xingchen Xue
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China; Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Yuliang Zhang
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China; Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Ruiyan Niu
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China; Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Xuying Li
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Baojun Li
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Xiaowen Wang
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
| | - Jundong Wang
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China; Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
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