1
|
Nunes PBDO, Ferreira MKM, Ribeiro Frazão D, Bittencourt LO, Chemelo VDS, Silva MCF, Pereira-Neto AL, Albuquerque ARL, Paz SPA, Angélica RS, Pessanha S, Lima RR. Effects of inorganic mercury exposure in the alveolar bone of rats: an approach of qualitative and morphological aspects. PeerJ 2022; 10:e12573. [PMID: 35127276 PMCID: PMC8800384 DOI: 10.7717/peerj.12573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 11/09/2021] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND In comparison to organic mercury (MeHg), the environmental inorganic mercury (IHg) can be found in some skin-lightening cosmestics were considered "harmless" for a long time. However, recent studies have shown that long-term exposure to low doses of IHg may affect biological systems. Therefore, this study investigated the effects of IHg long-term exposure to the alveolar bone of adult rats. METHODS Adult Wistar rats were distributed in control and HgCl2 exposed (0.375 mg/kg/day). After 45 days, the rats were euthanized and both blood and hemimandibles were collected. Total blood Hg levels were measured and both inorganic and organic components of the alveolar bone were determined through XRD and ATR-FTIR. The microstructure of the alveolar bone was assessed by using micro-CT and the morphometric analysis was performed by using stereomicroscopy. RESULTS Alterations in the physicochemical components of the alveolar bone of exposed animals were observed. The bone changes represented a tissue reaction at the microstructural level, such as bone volume increase. However, no significant dimensional changes (bone height) were observed. CONCLUSION Exposure to IHg at this dose can promote microstructural changes and alteration in the organic and inorganic components in the alveolar bone.
Collapse
Affiliation(s)
- Paula Beatriz de Oliveira Nunes
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil
| | - Maria Karolina Martins Ferreira
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil
| | - Deborah Ribeiro Frazão
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil
| | - Leonardo Oliveira Bittencourt
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil
| | - Victória dos Santos Chemelo
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil
| | - Márcia Cristina Freitas Silva
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil
| | | | | | | | | | - Sofia Pessanha
- Laboratory of Instrumentation, Biomedical Engineering and Radiation Physics, NOVA School of Sciences and Technology, Caparica, Portugal
| | - Rafael Rodrigues Lima
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil
| |
Collapse
|
2
|
Abdel-Shafy EA, Abdel-Wahhab MA, Abdollahi M, Abdurahman NH, Adefegha SA, Adeyemi WJ, Agus HH, Alabi QK, Alara OR, Alarcón Yaquetto DE, Al-Hady DA, Ali SA, Al-Talhi T, Alvarenga MOP, Aly HF, Al-Yasi HMM, Anadón A, Aragão WAB, Ares I, Arici MA, Arriaga-Alba M, Arumugam T, Atalar MN, Aydin Y, Ayhllon-Osorio CA, Basta G, Battal A, Bittencourt LO, Boşgelmez İİ, Butanda-Ochoa A, CAM I, Capanoglu E, Catalkaya G, Cervelli T, Ceylan FD, Chemelo VDS, Chen Y, Chuturgoon AA, Colle D, Costa ACO, Del Turco S, Diab AEAA, Dludla PV, Dogan A, Eiró LG, Eken A, El-Megharbel SM, El-Nekeety AA, Erkan M, Farina M, Feng Y, Fernandes RM, Ferreira MKM, Fett R, Flampouri E, Ghazi T, Gobouri AA, Gonzaga LV, Gonzales GF, Graciela KA, Grzelak A, Guldiken B, Hamza RZ, Han Q, Hassani S, Heidari R, Hernández-Muñoz R, Ibrahim NA, Ilhan M, J T, Juanita B, Kechrid Z, Khiari M, Klibet F, KOC U, Kovács M, Kowalczyk T, Krishnaiah D, Kronberg MF, Kruszewski M, Lima LADO, Lima RR, López-Vargas MR, Louw J, Malekirad AA, Martínez MA, Martínez-Larrañaga MR, Marzouki L, Mazibuko-Mbeje SE, Mehrzad J, Merzouk AS, Merzouk H, Mézes M, Miranda GHN, Molehin OR, Momtaz S, Montero-Montoya R, Munarriz ER, Mxinwa V, Nascimento PC, Nkambule BB, Nyambuya TM, Ommati MM, Orlando P, Orta Yilmaz B, Ozkan G, Pang J, Patel VB, Paz Aparicio VM, Preedy VR, Puty B, Rajendram R, Ralston NV, Raymond LJ, Ren J, Rossen A, Rtibi K, Sak K, Schulz M, Sebai H, Serrano-Contreras JI, Sheik Abdul N, Silvestri S, Silvia LA, Sitarek P, Skała E, Şlencu BG, Śliwiński T, Sun R, Szabó A, Terpilowska S, Tiano L, Torres-Santiago G, Tuncok Y, Türkan F, Wang N, Wang S, Xu C, Xu F, Yildizbayrak N, Zepeda-Vallejo LG, Zhang C, Zhang Y, Zheng Y. Contributors. Toxicology 2021. [DOI: 10.1016/b978-0-12-819092-0.09990-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
3
|
Frazão DR, Maia CDSF, Chemelo VDS, Monteiro D, Ferreira RDO, Bittencourt LO, Balbinot GDS, Collares FM, Rösing CK, Martins MD, Lima RR. Ethanol binge drinking exposure affects alveolar bone quality and aggravates bone loss in experimentally-induced periodontitis. PLoS One 2020; 15:e0236161. [PMID: 32730269 PMCID: PMC7392256 DOI: 10.1371/journal.pone.0236161] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 06/30/2020] [Indexed: 12/26/2022] Open
Abstract
Background Periodontitis is a multifactorial inflammatory disease of tooth supporting tissues caused by oral biofilms, influenced by environmental and genetic factors, among others. Ethanol consumption has been considered a factor that enhances alveolar bone loss, especially in high doses. The present study aims to investigate the changes promoted by ethanol binge drinking per se or associated with ligature-induced periodontal breakdown on alveolar bone loss. Materials and methods Thirty-two Wistar rats were randomly allocated into four groups: control (C), ethanol (3g/kg/day; 3 days On-4 days Off protocol by gavage for 28 days, EtOH), experimental periodontitis (EP) and experimental periodontitis plus ethanol administration (EP+EtOH). On day 14th, periodontitis was induced by ligatures that were placed around the lower first molars. On day 28th, the animals were euthanized and mandibles were submitted to stereomicroscopy for exposed root area analysis and micro-computed tomography (micro-CT) for the evaluation of alveolar bone loss and microstructural parameters. Results The results revealed that ligature-induced alveolar bone loss is aggravated by ethanol binge drinking compared to controls (1.06 ± 0.10 vs 0.77 ± 0.04; p<0.0001). In addition, binge drinking per se altered the alveolar bone quality and density demonstrating a reduction in trabecular thickness, trabecular number parameter and bone density percentual. Periodontal disorder plus ethanol binge drinking group also demonstrated reduction of the quality of bone measured by trabecular thickness. Conclusions In conclusion, intense and episodic ethanol intake decreased alveolar bone quality in all microstructural parameters analyzed which may be considered a modifying factor of periodontitis, intensifying the already installed disease.
Collapse
Affiliation(s)
- Deborah Ribeiro Frazão
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará (UFPA), Belém, Pará, Brazil
| | - Cristiane do Socorro Ferraz Maia
- Laboratory of Inflammation and Behavior Pharmacology, Pharmacy Faculty, Institute of Health Science, Federal University of Pará (UFPA), Belém, Pará, Brazil
| | - Victória dos Santos Chemelo
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará (UFPA), Belém, Pará, Brazil
| | - Deiweson Monteiro
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará (UFPA), Belém, Pará, Brazil
| | - Railson de Oliveira Ferreira
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará (UFPA), Belém, Pará, Brazil
| | - Leonardo Oliveira Bittencourt
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará (UFPA), Belém, Pará, Brazil
| | - Gabriela de Souza Balbinot
- Dental Materials Laboratory, School of Dentistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Fabrício Mezzomo Collares
- Dental Materials Laboratory, School of Dentistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Cassiano Kuchenbecker Rösing
- Department of Periodontology, School of Dentistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Manoela Domingues Martins
- Department of Oral Pathology, School of Dentistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Rafael Rodrigues Lima
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará (UFPA), Belém, Pará, Brazil
- * E-mail: ,
| |
Collapse
|