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Brankovič J, Leskovec J, Šturm S, Cerkvenik-Flajs V, Šterpin S, Osredkar J, Pogorevc E, Antolinc D, Vrecl M. Experimental Exposure to Bisphenol A Has Minimal Effects on Bone Tissue in Growing Rams-A Preliminary Study. Animals (Basel) 2022; 12:2179. [PMID: 36077899 PMCID: PMC9454980 DOI: 10.3390/ani12172179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/16/2022] [Accepted: 08/22/2022] [Indexed: 11/25/2022] Open
Abstract
Bisphenol A (BPA) is a well-known synthetic compound that belongs to the group of endocrine-disrupting chemicals. Although bone tissue is a target for these compounds, studies on BPA-related effects on bone morphology in farm animals are limited. In this preliminary study, we investigated the effects of short-term dietary BPA exposure on femoral morphology, metabolism, mineral content, and biomechanical behavior in rams aged 9-12 months. Fourteen rams of the Istrian Pramenka breed were randomly divided into a BPA group and a control group (seven rams/group) and exposed to 25 µg BPA/kg bw for 64 days in feed. Blood was collected for determination of bone turnover markers (procollagen N-terminal propeptide, C-terminal telopeptide), and femurs were assessed via computed tomography, histomorphometry, three-point bending test, and mineral analysis. BPA had no significant effects on most of the parameters studied. Only mineral analysis showed decreased manganese (50%; p ≤ 0.05) and increased copper content (25%; p ≤ 0.05) in the femurs of BPA-exposed rams. These results suggest that a 2-month, low-dose exposure to BPA in growing rams did not affect the histomorphology, metabolism, and biomechanical behavior of femurs; however, it affected the composition of microelements, which could affect the histometric and biophysical properties of bone in the long term.
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Affiliation(s)
- Jana Brankovič
- Institute of Preclinical Sciences, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia
| | - Jakob Leskovec
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Groblje 3, 1230 Domžale, Slovenia
| | - Sabina Šturm
- Institute of Pathology, Wild Animals, Fish and Bees, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia
| | - Vesna Cerkvenik-Flajs
- Institute of Pathology, Wild Animals, Fish and Bees, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia
| | - Saša Šterpin
- University Institute of Clinical Chemistry and Biochemistry, University Medical Centre Ljubljana, Zaloška Cesta 2, 1000 Ljubljana, Slovenia
| | - Joško Osredkar
- University Institute of Clinical Chemistry and Biochemistry, University Medical Centre Ljubljana, Zaloška Cesta 2, 1000 Ljubljana, Slovenia
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000 Ljubljana, Slovenia
| | - Estera Pogorevc
- Small Animal Clinic, Veterinary Faculty, University of Ljubljana, Cesta v Mestni log 47, 1000 Ljubljana, Slovenia
| | - David Antolinc
- Chair for Testing in Materials and Structures, Faculty of Civil and Geodetic Engineering, University of Ljubljana, Jamova 2, 1000 Ljubljana, Slovenia
| | - Milka Vrecl
- Institute of Preclinical Sciences, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia
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Coelho CA, Bordelo JP, Camassa JA, Barros VA, Babo PS, Gomes ME, Reis RL, Azevedo JTDE, Requicha JF, FaÍsca P, Carvalho PP, Viegas CA, Dias IR. Evaluation of hematology, general serum biochemistry, bone turnover markers and bone marrow cytology in a glucocorticoid treated ovariectomized sheep model for osteoporosis research. AN ACAD BRAS CIENC 2020; 92:e20200435. [PMID: 33295580 DOI: 10.1590/0001-3765202020200435] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 10/16/2020] [Indexed: 11/22/2022] Open
Abstract
Osteoporosis is a metabolic disorder characterized by a loss of bone mass and structure and increasing the risk of fragility fractures, mostly among postmenopausal women. Sheep is a recognized large animal model for osteoporosis research. An experimental group of ewes (3-4 years old) was subjected to ovariectomy (OVX) and weekly glucocorticoid (GC) application for 24 weeks and compared with a sham control group. Blood and bone marrow parameters were analyzed before and 24 weeks after OVX and GC administration. Osteopenia was confirmed through micro-computed tomography and histomorphometric analysis of L4 vertebra in the study end. A statistically significant increase was observed in mean corpuscular volume, mean cell hemoglobin and monocytes and a decrease in red blood count and eosinophils (p<0.05). Alkaline phosphatase (ALP), gamma-glutamyl transpeptidase, magnesium and α1-globulin increased, and creatinine, albumin, sodium and estradiol decreased (p<0.05). A slight decrease of bone formation markers (bone ALP and osteocalcin) and an increase of bone resorption markers (C-terminal telopeptides of collagen type 1 and tartrate-resistant acid phosphatase) were observed, but without statistical significance. This study aims to contribute to better knowledge of sheep as a model for osteoporosis research and the consequences that a performed induction protocol may impose on organic metabolism.
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Affiliation(s)
- Catarina A Coelho
- Faculty of Veterinary Medicine (FMV), University Lusófona de Humanidades e Tecnologias (ULHT), Campo Grande, 376 1749-024 Lisbon, Portugal
| | - JoÃo P Bordelo
- Department of Veterinary Sciences, School of Agricultural and Veterinary Sciences (ECAV), University of Trás-os-Montes e Alto Douro (UTAD), Quinta de Prados, 5000-801 Vila Real, Portugal
| | - JosÉ A Camassa
- Department of Veterinary Sciences, School of Agricultural and Veterinary Sciences (ECAV), University of Trás-os-Montes e Alto Douro (UTAD), Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Vera A Barros
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães 4805-017, Portugal
| | - Pedro S Babo
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães 4805-017, Portugal
| | - Manuela E Gomes
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães 4805-017, Portugal
| | - Rui L Reis
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães 4805-017, Portugal
| | - Jorge T DE Azevedo
- Department of Animal Sciences, ECAV, UTAD, 5000-801 Vila Real, Portugal.,CECAV - Centre for Animal Sciences and Veterinary Studies, UTAD, 5000-801 Vila Real, Portugal
| | - JoÃo F Requicha
- Department of Veterinary Sciences, School of Agricultural and Veterinary Sciences (ECAV), University of Trás-os-Montes e Alto Douro (UTAD), Quinta de Prados, 5000-801 Vila Real, Portugal.,CECAV - Centre for Animal Sciences and Veterinary Studies, UTAD, 5000-801 Vila Real, Portugal
| | - Pedro FaÍsca
- Faculty of Veterinary Medicine (FMV), University Lusófona de Humanidades e Tecnologias (ULHT), Campo Grande, 376 1749-024 Lisbon, Portugal.,Research Center in Biosciences and Health Technologies, FMV, ULHT, Campo Grande, 376, 1749-024 Lisbon, Portugal
| | - Pedro P Carvalho
- Department of Veterinary Medicine, University School Vasco da Gama (EUVG), Av. José R. Sousa Fernandes 197, Lordemão, 3020-210 Coimbra, Portugal.,CIVG - Vasco da Gama Research Center, EUVG, 3020-210 Coimbra, Portugal
| | - Carlos A Viegas
- Department of Veterinary Sciences, School of Agricultural and Veterinary Sciences (ECAV), University of Trás-os-Montes e Alto Douro (UTAD), Quinta de Prados, 5000-801 Vila Real, Portugal.,3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães 4805-017, Portugal.,CITAB - Centre for the Research and Technology of Agro-Environmental and Biological Sciences, UTAD, 5000-801 Vila Real, Portugal
| | - Isabel R Dias
- Department of Veterinary Sciences, School of Agricultural and Veterinary Sciences (ECAV), University of Trás-os-Montes e Alto Douro (UTAD), Quinta de Prados, 5000-801 Vila Real, Portugal.,3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães 4805-017, Portugal.,CITAB - Centre for the Research and Technology of Agro-Environmental and Biological Sciences, UTAD, 5000-801 Vila Real, Portugal
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