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Spitznagel K, Sadar MJ, Terhaar H, Brandao J, Teixeira L, de Linde Henriksen M. Iridial melanocytoma in a ferruginous hawk (Buteo regalis): A case report and review of avian melanocytic neoplasia. Vet Ophthalmol 2023; 26:464-471. [PMID: 37581472 DOI: 10.1111/vop.13141] [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: 05/11/2023] [Revised: 08/02/2023] [Accepted: 08/04/2023] [Indexed: 08/16/2023]
Abstract
A 21-year-old, suspected female captive ferruginous hawk (Buteo regalis) was followed for 3 years due to an iridial mass of the left eye (OS) that progressively increased in size. Enucleation of OS was eventually recommended due to the iridial mass taking up approximately 75% of the anterior chamber, and the bird seemed less active. A complete physical examination, complete blood cell count, biochemistry, and survey radiographs were performed pre-surgery with no findings indicating metastasis. A subconjunctival enucleation was performed and the globe was submitted for histopathology through the Comparative Ocular Pathology Lab of Wisconsin. The histopathologic evaluation determined the mass to be consistent with an iris melanocytoma, which has not been previously reported in this species. The patient recovered well from surgery and has remained comfortable and active for 117 days post-surgery. This case report aimed to review the current available information on avian ocular neoplasms as well as describe the clinical presentation, medical management and surgical procedure, and long-term follow-up for this patient to enhance clinical understanding of the behavior of iris melanocytic tumors in avian species.
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Affiliation(s)
- Katya Spitznagel
- College of Veterinary Medicine and Biomedical Sciences, James L. Voss Veterinary Teaching Hospital, Colorado State University, Fort Collins, Colorado, USA
| | - Miranda J Sadar
- Avian, Exotic, and Zoological Medicine Service, Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA
| | - Hannah Terhaar
- Comparative Ophthalmology Service, Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA
| | - Joao Brandao
- Zoological Medicine Service, Department of Clinical Sciences, Oklahoma State University, Stillwater, Oklahoma, USA
| | - Leandro Teixeira
- Department of Pathobiological Sciences and Comparative Ocular Pathology Laboratory of Wisconsin (COPLOW), School of Veterinary Medicine, University of Wisconsin, Madison, Wisconsin, USA
| | - Michala de Linde Henriksen
- Comparative Ophthalmology Service, Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA
- Comparative Ophthalmology, Department of Clinical Sciences, North Carolina State University, Raleigh, North Carolina, USA
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Pinzón-Osorio CA, Ávila-Coy J, Gomez AP, Marcela Álvarez-Mira D. Rhabdoid melanoma in a harpy eagle ( Harpia harpyja). Vet Anim Sci 2021; 13:100184. [PMID: 34189340 PMCID: PMC8217705 DOI: 10.1016/j.vas.2021.100184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 05/28/2021] [Accepted: 06/03/2021] [Indexed: 11/26/2022] Open
Abstract
A 28-year-old male harpy eagle (Harpia harpyja) with a history of anorexia, hyporexia, lethargy, and progressive weight loss was found dead and submitted for post-mortem examination. Gross findings include dark brown discolouration of testes and lungs; the testes were bilaterally enlarged, glistening brown-grey to blackish in appearance, firm, smooth, and multilobulated. The lungs contained a mass with similar features to the testicles, irregularly shaped with multiple nodules. Histology of testis showed round, polygonal and pleomorphic cells, containing melanin pigments and a typical eosinophilic vacuole in their cytoplasm and with severe pleomorphism. An immunohistochemistry panel with Melan-A, vimentin, CK AE1/AE/3, MUM-1 and CD-68 were performed, yielding a positive reaction for Melan-A and vimentin. The morphology of the tumour cells, the presence of melanin pigment and the immunoreactivity for Melan-A and vimentin by the cells led to a diagnosis of rhabdoid melanoma. This is the first case of this pathology in the testis with lung metastasis in a harpy eagle.
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Affiliation(s)
- César Augusto Pinzón-Osorio
- Department of Animal Health, School of Veterinary Medicine, Universidad Nacional de Colombia, Sede Bogotá, Poultry Research Building, Bogotá DC, Carrera 45 #26-85, Colombia
| | - Jersson Ávila-Coy
- Department of Animal Health, School of Veterinary Medicine, Universidad Nacional de Colombia, Sede Bogotá, Poultry Research Building, Bogotá DC, Carrera 45 #26-85, Colombia
| | - Arlen P Gomez
- Department of Animal Health, School of Veterinary Medicine, Universidad Nacional de Colombia, Sede Bogotá, Poultry Research Building, Bogotá DC, Carrera 45 #26-85, Colombia
| | - Diana Marcela Álvarez-Mira
- Department of Animal Health, School of Veterinary Medicine, Universidad Nacional de Colombia, Sede Bogotá, Poultry Research Building, Bogotá DC, Carrera 45 #26-85, Colombia
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Teas J, Irhimeh MR. Melanoma and brown seaweed: an integrative hypothesis. JOURNAL OF APPLIED PHYCOLOGY 2017; 29:941-948. [PMID: 28458463 PMCID: PMC5387006 DOI: 10.1007/s10811-016-0979-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 10/01/2016] [Accepted: 10/02/2016] [Indexed: 05/08/2023]
Abstract
Although relatively rare, melanoma accounts for 2 % of cancer diagnoses globally and accounts for about 1 % of all cancer deaths. Worldwide, the annual incidence of melanoma is 272,000 cases which vary hugely, ranging from Japan where it is incredibly infrequent, to Queensland, Australia, where it is nearly 100 times higher. Based on epidemiology and laboratory studies, there is compelling evidence suggesting that seaweed might be protective against different types of cancers such as breast cancer in seaweed consuming populations. By comparing countries where melanoma is more common with countries where it is infrequent, it is possible to construct a hypothesis for how consuming brown seaweeds which may hold clues to the differences in melanoma susceptibility between Japanese and Western nations. Unlike in these other countries, where melanoma incidence has increased dramatically over the last two decades, in Japan, rates have remained remarkably low and stable. There is limited evidence from clinical studies and animal models that have used whole seaweed or isolated fractions from seaweed and measured changes in biomarkers. They have demonstrated the effectiveness of seaweed at inhibiting melanoma development and progression. In this review, the various results will be described. Although there are several effective fractions, it is proposed that consuming whole seaweeds may hold additional benefits that could be lost by consuming only a single extract.
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Affiliation(s)
- Jane Teas
- Thomas Cooper Library Fellow, University of South Carolina, Columbia, SC 29208 USA
| | - Mohammad R. Irhimeh
- Cell and Tissue Therapies Western Australia, Royal Perth Hospital, Perth, WA 6000 Australia
- Faculty of Medicine, Dentistry and Health Sciences, The University of Western Australia, Crawley, Perth, WA 6009 Australia
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Luo C, Qu H, Wang J, Wang Y, Ma J, Li C, Yang C, Hu X, Li N, Shu D. Genetic parameters and genome-wide association study of hyperpigmentation of the visceral peritoneum in chickens. BMC Genomics 2013; 14:334. [PMID: 23679099 PMCID: PMC3663821 DOI: 10.1186/1471-2164-14-334] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Accepted: 05/07/2013] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Hyperpigmentation of the visceral peritoneum (HVP) has recently garnered much attention in the poultry industry because of the possible risk to the health of affected animals and the damage it causes to the appearance of commercial chicken carcasses. However, the heritable characters of HVP remain unclear. The objective of this study was to investigate the genetic parameters of HVP by genome-wide association study (GWAS) in chickens. RESULTS HVP was found to be influenced by genetic factors, with a heritability score of 0.33. HVP had positive genetic correlations with growth and carcass traits, such as leg muscle weight (rg = 0.34), but had negative genetic correlations with immune traits, such as the antibody response to Newcastle disease virus (rg = -0.42). The GWAS for HVP using 39,833 single nucleotide polymorphisms indicated the genetic factors associated with HVP displayed an additive effect rather than a dominance effect. In addition, we determined that three genomic regions, involving the 50.5-54.0 Mb region of chicken (Gallus gallus) chromosome 1 (GGA1), the 58.5-60.5 Mb region of GGA1, and the 10.5-12.0 Mb region of GGA20, were strongly associated (P < 6.28 × 10-7) with HVP in chickens. Variants in these regions explained >50% of additive genetic variance for HVP. This study also confirmed that expression of BMP7, which codes for a bone morphogenetic protein and is located in one of the candidate regions, was significantly higher in the visceral peritoneum of Huiyang Beard chickens with HVP than in that of chickens without pigmentation (P < 0.05). CONCLUSIONS HVP is a quantitative trait with moderate heritability. Genomic variants resulting in HVP were identified on GGA1 and GGA20, and expression of the BMP7 gene appears to be upregulated in HVP-affected chickens. Findings from this study should be used as a basis for further functional validation of candidate genes involved in HVP.
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Affiliation(s)
- Chenglong Luo
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, 1 Dafeng 1st Street, Wushan, Tianhe District, Guangzhou, Guangdong, 510640, China
- State Key Laboratory of Livestock and Poultry Breeding, Guangzhou, 510640, China
| | - Hao Qu
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, 1 Dafeng 1st Street, Wushan, Tianhe District, Guangzhou, Guangdong, 510640, China
- State Key Laboratory of Livestock and Poultry Breeding, Guangzhou, 510640, China
| | - Jie Wang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, 1 Dafeng 1st Street, Wushan, Tianhe District, Guangzhou, Guangdong, 510640, China
- State Key Laboratory of Livestock and Poultry Breeding, Guangzhou, 510640, China
| | - Yan Wang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, 1 Dafeng 1st Street, Wushan, Tianhe District, Guangzhou, Guangdong, 510640, China
- State Key Laboratory of Livestock and Poultry Breeding, Guangzhou, 510640, China
| | - Jie Ma
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, 1 Dafeng 1st Street, Wushan, Tianhe District, Guangzhou, Guangdong, 510640, China
- State Key Laboratory of Livestock and Poultry Breeding, Guangzhou, 510640, China
| | - Chunyu Li
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, 1 Dafeng 1st Street, Wushan, Tianhe District, Guangzhou, Guangdong, 510640, China
- State Key Laboratory of Livestock and Poultry Breeding, Guangzhou, 510640, China
| | - Chunfen Yang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, 1 Dafeng 1st Street, Wushan, Tianhe District, Guangzhou, Guangdong, 510640, China
- State Key Laboratory of Livestock and Poultry Breeding, Guangzhou, 510640, China
| | - Xiaoxiang Hu
- State Key Laboratory for Agro-Biotechnology, China Agricultural University, Beijing, 100193, China
| | - Ning Li
- State Key Laboratory for Agro-Biotechnology, China Agricultural University, Beijing, 100193, China
| | - Dingming Shu
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, 1 Dafeng 1st Street, Wushan, Tianhe District, Guangzhou, Guangdong, 510640, China
- State Key Laboratory of Livestock and Poultry Breeding, Guangzhou, 510640, China
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