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Tomé I, Alves-Pimenta S, Sargo R, Pereira J, Colaço B, Brancal H, Costa L, Ginja M. Mechanical osteoarthritis of the hip in a one medicine concept: a narrative review. BMC Vet Res 2023; 19:222. [PMID: 37875898 PMCID: PMC10599070 DOI: 10.1186/s12917-023-03777-z] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 10/06/2023] [Indexed: 10/26/2023] Open
Abstract
Human and veterinary medicine have historically presented many medical areas of potential synergy and convergence. Mechanical osteoarthritis (MOA) is characterized by a gradual complex imbalance between cartilage production, loss, and derangement. Any joint instability that results in an abnormal overload of the joint surface can trigger MOA. As MOA has a prevailing mechanical aetiology, treatment effectiveness can only be accomplished if altered joint mechanics and mechanosensitive pathways are normalized and restored. Otherwise, the inflammatory cascade of osteoarthritis will be initiated, and the changes may become irreversible. The management of the disease using non-steroidal anti-inflammatory drugs, analgesics, physical therapy, diet changes, or nutraceuticals is conservative and less effective. MOA is a determinant factor for the development of hip dysplasia in both humans and dogs. Hip dysplasia is a hereditary disease with a high incidence and, therefore, of great clinical importance due to the associated discomfort and significant functional limitations. Furthermore, on account of analogous human and canine hip dysplasia disease and under the One Medicine concept, unifying veterinary and human research could improve the well-being and health of both species, increasing the acknowledgement of shared diseases. Great success has been accomplished in humans regarding preventive conservative management of hip dysplasia and following One Medicine concept, similar measures would benefit dogs. Moreover, animal models have long been used to better understand the different diseases' mechanisms. Current research in animal models was addressed and the role of rabbit models in pathophysiologic studies and of the dog as a spontaneous animal model were highlighted, denoting the inexistence of rabbit functional models to investigate therapeutic approaches in hip MOA.
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Affiliation(s)
- I Tomé
- Department of Veterinary Sciences, University of Trás-Os-Montes E Alto Douro, Vila Real, 5000-801, Portugal.
- CECAV, Centre for Animal Sciences and Veterinary Studies, Associate Laboratory for Animal and Veterinary Science - AL4AnimalS, University of Trás-Os-Montes E Alto Douro, Vila Real, Portugal.
| | - S Alves-Pimenta
- CECAV, Centre for Animal Sciences and Veterinary Studies, Associate Laboratory for Animal and Veterinary Science - AL4AnimalS, University of Trás-Os-Montes E Alto Douro, Vila Real, Portugal
- Department of Animal Science, University of Trás-Os-Montes E Alto Douro, Vila Real, Portugal
| | - R Sargo
- Department of Veterinary Sciences, University of Trás-Os-Montes E Alto Douro, Vila Real, 5000-801, Portugal
- CECAV, Centre for Animal Sciences and Veterinary Studies, Associate Laboratory for Animal and Veterinary Science - AL4AnimalS, University of Trás-Os-Montes E Alto Douro, Vila Real, Portugal
| | - J Pereira
- Department of Veterinary Sciences, University of Trás-Os-Montes E Alto Douro, Vila Real, 5000-801, Portugal
- CECAV, Centre for Animal Sciences and Veterinary Studies, Associate Laboratory for Animal and Veterinary Science - AL4AnimalS, University of Trás-Os-Montes E Alto Douro, Vila Real, Portugal
| | - B Colaço
- CECAV, Centre for Animal Sciences and Veterinary Studies, Associate Laboratory for Animal and Veterinary Science - AL4AnimalS, University of Trás-Os-Montes E Alto Douro, Vila Real, Portugal
- Department of Animal Science, University of Trás-Os-Montes E Alto Douro, Vila Real, Portugal
| | - H Brancal
- Clínica Veterinária da Covilhã, Covilhã, 6200-289, Portugal
| | - L Costa
- Department of Veterinary Sciences, University of Trás-Os-Montes E Alto Douro, Vila Real, 5000-801, Portugal
- CECAV, Centre for Animal Sciences and Veterinary Studies, Associate Laboratory for Animal and Veterinary Science - AL4AnimalS, University of Trás-Os-Montes E Alto Douro, Vila Real, Portugal
| | - M Ginja
- Department of Veterinary Sciences, University of Trás-Os-Montes E Alto Douro, Vila Real, 5000-801, Portugal
- CECAV, Centre for Animal Sciences and Veterinary Studies, Associate Laboratory for Animal and Veterinary Science - AL4AnimalS, University of Trás-Os-Montes E Alto Douro, Vila Real, Portugal
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2
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Nascimento-Gonçalves E, Seixas F, Silva M, Fardilha M, Ferreira R, Neuparth MJ, Faustino-Rocha AI, Colaço B, Venâncio C, Barros L, Ferreira ICFR, Oliveira MM, Peixoto F, Rosa E, Oliveira PA. The influence of Castanea sativa Mill. flower extract on hormonally and chemically induced prostate cancer in a rat model. Food Funct 2021; 12:2631-2643. [PMID: 33645604 DOI: 10.1039/d1fo00029b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Prostate cancer (PCa) is one of the most common cancers in men, with a huge impact on their health. The use of Castanea sativa Mill. flowers (CFs) in beverages has been reported, through ancestral claims, as having health benefits. In vitro research has evidenced the properties of CFs, such as antitumor and antioxidant activities. This study aimed to evaluate the effects of CF extract in an animal model of PCa. Forty male Wistar Unilever rats were randomly assigned to four groups: control, induced, control + CF, and induced + CF groups. Animals from the induced groups were exposed to a multistep protocol for PCa induction. The CF extract, rich in trigalloyl-HHDP-glucoside and obtained via decoction, was administered to the CF groups in drinking water (3 mg per animal per day) for 49 weeks. Animals were sacrificed at 61 weeks of age. Regarding the effects of CFs on dorsolateral prostate tumorigenesis, no significant differences were observed between the induced and induced + CF groups. However, animals exposed to the CF extract showed fewer inflammation areas on the dorsolateral prostate lobe than those not exposed to CF. Moreover, the CF extract alleviated the hepatic oxidative stress associated with the multistep protocol, resulting in lower levels of lipid peroxidation. These results suggest that CF extract has antioxidant and anti-inflammatory properties.
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Affiliation(s)
- E Nascimento-Gonçalves
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal.
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3
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Alves-Pimenta S, Santana A, Martins J, Colaço B, Gonçalves L, Ginja M. Distraction index measurement on the dog's hip joint using a dedicated software. ARQ BRAS MED VET ZOO 2020. [DOI: 10.1590/1678-4162-11692] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT The aim of this study was to test the accuracy of a new automated computer software tool for the assessment of passive hip laxity. The hip laxity was estimated using the dedicated computer software by two blinded evaluators, one previously trained and one without specific training for distraction index measurement, in two independent sessions using 230 hip joints from 115 dogs that underwent screening for passive hip laxity using the distraction view. Previously, all of these radiographs were sent to PennHIP Analysis Center for an official distraction index record. The measurement repeatability of the two sessions was adequate for both evaluators. The reproducibility of the official distraction index measurement, mean distraction index±standard deviation 0.44±0.15, was adequate (P>0.05) for the trained evaluator, 0.44±0.15, and non-adequate (P<0.05), for the non-trained evaluator 0.47±0.17. The distraction index measurement tool proposed can be used with confidence for hip laxity evaluation by trained evaluators, as it provided good repeatability and reproducibility of official reports. The simplicity of the process described leads to a less time-consuming and more affordable procedure.
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Affiliation(s)
- S. Alves-Pimenta
- University of Trás-os-Montes and Alto Douro, Portugal; University of Trás-os-Montes and Alto Douro, Portugal
| | - A. Santana
- University of Trás-os-Montes and Alto Douro, Portugal; Lusófona University, Portugal
| | - J. Martins
- University of Trás-os-Montes and Alto Douro, Portugal; Lusófona University, Portugal
| | - B. Colaço
- University of Trás-os-Montes and Alto Douro, Portugal; University of Trás-os-Montes and Alto Douro, Portugal
| | - L. Gonçalves
- University of Trás-os-Montes and Alto Douro, Portugal; Institute for Systems and Computer Engineering, Technology and Science, Portugal
| | - M. Ginja
- University of Trás-os-Montes and Alto Douro, Portugal; University of Trás-os-Montes and Alto Douro, Portugal
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Medeiros-Fonseca B, Mestre VF, Colaço B, Pires MJ, Martins T, Gil da Costa RM, Neuparth MJ, Medeiros R, Moutinho MSS, Dias MI, Barros L, Bastos MMSM, Félix L, Venâncio C, Ferreira ICFR, Antunes LM, Oliveira PA. Laurus nobilis (laurel) aqueous leaf extract's toxicological and anti-tumor activities in HPV16-transgenic mice. Food Funct 2018; 9:4419-4428. [PMID: 30066000 DOI: 10.1039/c8fo00783g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Cancers induced by human papillomavirus (HPV) infection remain a significant public health threat, fueling the study of new therapies. Laurel (Laurus nobilis) compounds and extracts recently showed in vitro activity against HPV-transformed cell lines. This work aims to evaluate the in vivo efficacy and hepatic toxicity of a laurel extract in a transgenic mouse model of HPV16-induced cancer. The extract was administered in drinking water (20 mg per animal per day) for three consecutive weeks, using four experimental groups (n = 10) (group I: HPV16-/- without treatment, group II: treated HPV16-/-, group III: HPV16+/- without treatment and group IV: treated HPV16+/-). Following the treatment period, animals were sacrificed and skin samples were used to classify skin lesions histologically. Toxicological parameters included hematological and biochemical blood markers, splenic and hepatic histology and hepatic oxidative stress. The extract did not prevent the progression of HPV16-induced cutaneous lesions in this model. The treated wild-type animals showed mild hepatitis, while transgenic animals suffered weight loss. However, there were no changes concerning hematological, biochemical and hepatic oxidative stress markers.
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Affiliation(s)
- B Medeiros-Fonseca
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
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5
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Peirone C, Mestre VF, Medeiros-Fonseca B, Colaço B, Pires MJ, Martins T, Gil da Costa RM, Neuparth MJ, Medeiros R, Bastos MMSM, Marques-Magallanes JA, Oliveira PA. Ozone therapy prevents the onset of dysplasia in HPV16-transgenic mice-A pre-clinical efficacy and safety analysis. Biomed Pharmacother 2018; 104:275-279. [PMID: 29775895 DOI: 10.1016/j.biopha.2018.05.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 05/07/2018] [Indexed: 12/21/2022] Open
Abstract
Infection with high-risk human papillomavirus (HPV), most often HPV16, is associated with the development of anogenital and oropharyngeal cancers. Recently, ozone therapy was reported to have considerable efficacy against rabbit VX2 tumors, induced by the cottontail rabbit papillomavirus. The present study aims to determine whether similar results can be obtained in HPV16-transgenic mice, possibly paving the way for new therapeutic options against HPV-induced cancers. HPV16-transgenic and wild-type, female, 20 weeks-old mice were injected intraperitoneally with medical O3/O2 (80░mL/kg, at O3 50░μg/mL), once a day, for 5 consecutive days. The animals were sacrificed at 25 weeks-old, and skin samples were analyzed histologically to study tumour progression. Blood and internal organ samples were used to study toxicological parameters. 85.7% of untreated transgenic mice showed dysplastic skin lesions, compared with 28.6% of O3-treated mice. This was associated with a marked reduction of dermal inflammation associated with those lesions. No significant changes were observed in any toxicological parameters. These preliminary results support the hypothesis that O3 therapy is effective against papillomavirus-induced lesions, particularly against those induced by the most common high-risk virus, HPV16. Further studies are needed to confirm the mechanisms underlying these effects.
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Affiliation(s)
- C Peirone
- Department of Veterinary Sciences, UTAD, Vila Real, Portugal.
| | - V F Mestre
- Department of Veterinary Sciences, UTAD, Vila Real, Portugal; Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
| | - B Medeiros-Fonseca
- Department of Veterinary Sciences, UTAD, Vila Real, Portugal; Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - B Colaço
- Department of Veterinary Sciences, UTAD, Vila Real, Portugal; Zootechnics Department, UTAD, Vila Real, Portugal
| | - M J Pires
- Department of Veterinary Sciences, UTAD, Vila Real, Portugal; Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - T Martins
- Department of Veterinary Sciences, UTAD, Vila Real, Portugal; Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - R M Gil da Costa
- Department of Veterinary Sciences, UTAD, Vila Real, Portugal; Laboratory for Process Engineering Environment Biotechnology and Energy (LEPABE) Chemical Engineering Department, Faculty of Engineering, University of Porto (FEUP), Porto, Portugal; Molecular Oncology and Viral Pathology Group, IPO-Porto Research Center (CI-IPOP), Portuguese Institute of Oncology of Porto (IPO-Porto), Porto, Portugal.
| | - M J Neuparth
- Advanced Polytechnic and University Cooperative (CESPU), Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Gandra, Portugal; Research Center in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sports, University of Porto, Porto, Portugal
| | - R Medeiros
- Molecular Oncology and Viral Pathology Group, IPO-Porto Research Center (CI-IPOP), Portuguese Institute of Oncology of Porto (IPO-Porto), Porto, Portugal; Faculty of Medicine, University of Porto (FMUP), Porto, Portugal; CEBIMED, Faculty of Health Sciences, Fernando Pessoa University, Porto, Portugal; LPCC Research Department, Portuguese League against Cancer (NRNorte), Porto, Portugal
| | - M M S M Bastos
- Laboratory for Process Engineering Environment Biotechnology and Energy (LEPABE) Chemical Engineering Department, Faculty of Engineering, University of Porto (FEUP), Porto, Portugal
| | | | - P A Oliveira
- Department of Veterinary Sciences, UTAD, Vila Real, Portugal; Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
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6
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Nogueira A, Vala H, Nóbrega C, Pires C, Colaço B, Oliveira P, Pires M. New Therapeutic Approaches to Chronic Kidney Disease. J Comp Pathol 2018. [DOI: 10.1016/j.jcpa.2017.10.098] [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]
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7
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González-Fernández ML, Pérez-Castrillo S, Ordás-Fernández P, López-González ME, Colaço B, Villar-Suárez V. Study on viability and chondrogenic differentiation of cryopreserved adipose tissue-derived mesenchymal stromal cells for future use in regenerative medicine. Cryobiology 2015. [PMID: 26209137 DOI: 10.1016/j.cryobiol.2015.07.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Adipose-derived mesenchymal stromal cells are promising as a regenerative therapy tool for defective tissues in mesenchymal lineage, including fat, bone, cartilage, and blood vessels. In potential future clinical applications, adipose-derived stem cell cryopreservation is an essential fundamental technology. The aim of this study is to define an adequate protocol for the cryopreservation of adipose-derived mesenchymal stromal cells, by comparing various protocols so as to determine the effects of cryopreservation on viability and chondrogenic differentiation potential of adipose-derived stem cells upon freeze-thawing of AT-MSCs colonies cryopreserved with standard and modified protocols, using flow cytometry and confocal microscopy. The study concludes that adipose-derived mesenchymal stromal cells could be long-term cryopreserved without any loss of their proliferative or differentiation potential.
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Affiliation(s)
- M L González-Fernández
- Department of Anatomy, Faculty of Veterinary Medicine, Campus de Vegazana, University of León, Spain
| | - S Pérez-Castrillo
- Department of Anatomy, Faculty of Veterinary Medicine, Campus de Vegazana, University of León, Spain
| | - P Ordás-Fernández
- Department of Anatomy, Faculty of Veterinary Medicine, Campus de Vegazana, University of León, Spain
| | - M E López-González
- Department of Anatomy, Faculty of Veterinary Medicine, Campus de Vegazana, University of León, Spain
| | - B Colaço
- Zootecnia Department, CECAV, University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal
| | - V Villar-Suárez
- Biomedicine Institute, Faculty of Veterinary Medicine, Campus de Vegazana, University of León, Spain.
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8
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Faustino-Rocha AI, Rodrigues D, Ferreira R, Colaço B, Gomes PS, Pires MJ, Gama A, Oliveira PA. The effects of intense pulsed light in a mouse model of skin carcinogenesis. Br J Dermatol 2015; 174:216-8. [PMID: 26147791 DOI: 10.1111/bjd.14010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A I Faustino-Rocha
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal.,Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
| | - D Rodrigues
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
| | - R Ferreira
- Organic Chemistry of Natural Products and Agrifood (QOPNA), Mass Spectrometry Centre, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - B Colaço
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal.,Department of Zootechnics, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
| | - P S Gomes
- Laboratory of Pharmacology and Cellular Biocompatibility, Faculty of Dental Medicine, University of Porto, UP, 4200-393, Porto, Portugal
| | - M J Pires
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal.,Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
| | - A Gama
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal.,Animal and Veterinary Research Centre (CECAV), School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
| | - P A Oliveira
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal.,Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
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9
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Mata D, Amaral M, Fernandes AJS, Colaço B, Gama A, Paiva MC, Gomes PS, Silva RF, Fernandes MH. Diels-Alder functionalized carbon nanotubes for bone tissue engineering: in vitro/in vivo biocompatibility and biodegradability. Nanoscale 2015; 7:9238-9251. [PMID: 25928241 DOI: 10.1039/c5nr01829c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The risk-benefit balance for carbon nanotubes (CNTs) dictates their clinical fate. To take a step forward at this crossroad it is compulsory to modulate the CNT in vivo biocompatibility and biodegradability via e.g. chemical functionalization. CNT membranes were functionalised combining a Diels-Alder cycloaddition reaction to generate cyclohexene (-C6H10) followed by a mild oxidisation to yield carboxylic acid groups (-COOH). In vitro proliferation and osteogenic differentiation of human osteoblastic cells were maximized on functionalized CNT membranes (p,f-CNTs). The in vivo subcutaneously implanted materials showed a higher biological reactivity, thus inducing a slighter intense inflammatory response compared to non-functionalized CNT membranes (p-CNTs), but still showing a reduced cytotoxicity profile. Moreover, the in vivo biodegradation of CNTs was superior for p,f-CNT membranes, likely mediated by the oxidation-induced myeloperoxidase (MPO) in neutrophil and macrophage inflammatory milieus. This proves the biodegradability faculty of functionalized CNTs, which potentially avoids long-term tissue accumulation and triggering of acute toxicity. On the whole, the proposed Diels-Alder functionalization accounts for the improved CNT biological response in terms of the biocompatibility and biodegradability profiles. Therefore, CNTs can be considered for use in bone tissue engineering without notable toxicological threats.
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Affiliation(s)
- D Mata
- CICECO, Materials and Ceramic Eng. Dept., Univ. of Aveiro, 3810-193 Aveiro, Portugal.
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10
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Carneiro M, Nieto R, Colaço B, Brandão R, Gil da Costa R, Colaço A, Pires M, Oliveira P, Lavin S. Acute Lead Poisoning in a Griffon Vulture Secondary to Bullet Ingestion. J Comp Pathol 2014. [DOI: 10.1016/j.jcpa.2013.11.197] [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: 10/25/2022]
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11
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Payan-Carreira R, Colaço B, Rocha C, Albuquerque C, Luis M, Abreu H, Pires MA. Priapism associated with lumbar stenosis in a dog. Reprod Domest Anim 2013; 48:e58-64. [PMID: 23551292 DOI: 10.1111/rda.12167] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 02/19/2013] [Indexed: 11/28/2022]
Abstract
Priapism, a persistent long-lasting involuntary erection of the penis, is uncommon in dogs. In this report, the case of a 13-year-old male Pointer, referred to our services due to persistent exposition of the penis, is described. This condition was consecutive to an intermittent priapism situation lasting for several days, which has been initially attributed to the inflammation and haematoma associated with a perianal bite. The owners became unable to retract the penis into the prepuce. At presentation, the dog was anorectic for 48 h, intolerant to manipulation, and showed poor body condition and unsteady locomotion. During physical evaluation, a marked engorgement of the local vessels in the prepuce and penis was found. An abdominal X-ray was asked under the suspicion of a neurogenic origin for the clinical situation, which showed evidences of spondylosis. After discussion of the clinical condition, the owners asked for euthanasia. The necropsy confirmed the engorgement of the regional vessels deriving from the pudendal arteries and blood accumulation within all the cavernous spaces, accompanied by congestion and thrombosis within the erectile structures of the penis. No significant changes were observed in the pelvic organs that could be at the origin of priapism. The lumbar-sacral spinal regions were carefully inspected and evidenced signs of L7-S1 stenosis due to spondylosis. The case presented herein is a rare situation of priapism of neurogenic origin in a dog. Necropsy findings suggest that it was consecutive to cauda equina compression due to lumbar spinal stenosis.
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Affiliation(s)
- R Payan-Carreira
- CECAV, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal.
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12
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Payan-Carreira R, Colaço B, Albuquerque C, Abreu H, Rocha C, Pires M. High-flow Priapism Subsequent to Lumbar Spinal Stenosis in a Dog. J Comp Pathol 2013. [DOI: 10.1016/j.jcpa.2012.11.206] [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: 10/27/2022]
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13
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Arantes-Rodrigues R, Henriques A, Pires M, Colaço B, Calado A, Rema P, Colaço A, Fernandes T, De la Cruz P, Lopes C, Fidalgo-Gonçalves L, Vilela S, Pedrosa T, Peixoto F, Oliveira P. High doses of olive leaf extract induce liver changes in mice. Food Chem Toxicol 2011; 49:1989-97. [DOI: 10.1016/j.fct.2011.05.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2010] [Revised: 04/10/2011] [Accepted: 05/06/2011] [Indexed: 10/18/2022]
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14
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Switonski M, Payan-Carreira R, Bartz M, Nowacka-Woszuk J, Szczerbal I, Colaço B, Pires M, Ochota M, Nizanski W. Hypospadias in a Male (78,XY; SRY-Positive) Dog and Sex Reversal Female (78,XX; SRY-Negative) Dogs: Clinical, Histological and Genetic Studies. Sex Dev 2011; 6:128-34. [DOI: 10.1159/000330921] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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15
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Payan-Carreira R, Pires MA, Quaresma M, Chaves R, Adega F, Guedes Pinto H, Colaço B, Villar V. A complex intersex condition in a Holstein calf. Anim Reprod Sci 2008; 103:154-63. [PMID: 17517482 DOI: 10.1016/j.anireprosci.2007.04.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2006] [Revised: 03/21/2007] [Accepted: 04/10/2007] [Indexed: 10/23/2022]
Abstract
A case of disrupted embryonic development of the genital tract in a newborn Holstein calf is described. The physical examination of the calf evidenced several abnormalities, like atresia ani, rudimentary external genitalia and caudal vertebral agenesis. On necropsy, the excised genitalia consisted of bilateral streak gonads, apparently normal uterine tubes, a fluid-filled uterus, a long vagina and a very narrow clitoris-like structure covered with a discrete skin-fold. The urinary tract seemed normal and the urethra's opening was at the vestibule-vaginal junction. A cytogenetic analysis was requested. Karyotype revealed the existence of Y chromosome material in the two X chromosomes. However, the search for the sex-determining region Y (SRY) showed that this was an apparently absent gene. The histological examination of the gonads revealed the existence of ovarian dysplasia. Uterine sections evidenced the absence of the uterine epithelium, with only sporadic caruncles. Under microscopic examination, the uterine tubes and vagina structure was normal. The external genitalia sections revealed the existence of a skin-fold covering an erectile structure surrounding the urethra, a structure more similar to a penis than to a clitoris. This is an unusual situation of gonadal dysplasia combined with genital tract anomalies in cattle, probably associated to a genetic defect.
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Villar-Suárez V, Colaço B, Calles-Venal I, Bravo IG, Fernández-Alvarez JG, Fernández-Caso M, Villar-Lacilla JM. Effects of extracellular matrix on the morphology and behaviour of rabbit auricular chondrocytes in culture. J Biomed Biotechnol 2005; 2005:364-73. [PMID: 16489269 PMCID: PMC1361486 DOI: 10.1155/jbb.2005.364] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2004] [Revised: 04/29/2005] [Accepted: 05/16/2005] [Indexed: 11/17/2022] Open
Abstract
Isolated chondrocytes dedifferentiate to a fibroblast-like shape on plastic substrata and proliferate extensively, but rarely form nodules. However, when dissociation is not complete and some cartilage remnants are included in the culture, proliferation decreases and cells grow in a reticular pattern with numerous nodules, which occasionally form small cartilage-like fragments. In an attempt to reproduce this stable chondrogenic state, we added a cartilage protein extract, a sugar extract, and hyaluronan to the medium of previously dedifferentiated chondrocytes. When protein extract was added, many cartilaginous nodules appeared. Hyaluronan produced changes in cell phenotype and behaviour, but not nodule formation. Protein extract has positive effects on the differentiation of previously proliferated chondrocytes and permits nodule formation and the extensive production of type-II collagen. A comparison with incompletely dissociated chondrocyte cultures suggests that the presence of some living cells anchored to their natural extracellular matrix provides some important additional factors for the phenotypical stability of chondrocytes on plastic surfaces. In order to elucidate if it is possible that the incidence of apoptosis is related to the results, we also characterized the molecular traits of apoptosis.
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Affiliation(s)
- Vega Villar-Suárez
- Departamento Biología Celular y Anatomía, Facultad de Veterinaria, Universidad de Léon, 24071 Léon, Spain.
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