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de Moura FBC, Lacerda ZA, Catão-Dias JL, Navas-Suárez PE, Werther K, Simões SRJS, Santos RDL, Murillo DFB, Watanabe TTN, Fonseca-Alves CE, Rocha NS. Background and common lesions in the female reproductive organs of giant anteaters ( Myrmecophaga tridactyla). Front Vet Sci 2024; 11:1287872. [PMID: 38328261 PMCID: PMC10847298 DOI: 10.3389/fvets.2024.1287872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 01/03/2024] [Indexed: 02/09/2024] Open
Abstract
The giant anteater (Myrmecophaga tridactyla) is a vulnerable species in South America and is considered endangered or near extinction in Central America. Therefore, studies describing the reproductive characteristics of this species are pivotal for its conservation. Thus, this study aimed to provide a morphological description of the female reproductive tissues of this species. We collected tissue samples from six female giant anteaters and performed gross, morphological, and histochemical analyses. Five adult subjects and one juvenile were included in the study. In the ovary, classifications were made according to the follicle and oocyte sizes: primordial, primary, secondary, early antral, or antral. Typical follicles with a single oocyte surrounded by a simple or stratified layer of cubic epithelium, atretic follicles, corpora lutea, corpora albicans, and ovarian cysts were also observed. No ovarian lesions were observed. By contrast, endometritis, metritis, mucometra, and endometrial cysts were identified in the uterus. Uterine alterations in these subjects were frequent and could affect reproduction.
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Affiliation(s)
| | - Zara Alves Lacerda
- School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), São Paulo, Brazil
| | - José Luiz Catão-Dias
- School of Veterinary Medicine and Animal Science, University of São Paulo (USP), São Paulo, Brazil
| | - Pedro Enrique Navas-Suárez
- School of Veterinary Medicine and Animal Science, University of São Paulo (USP), São Paulo, Brazil
- Veterinary Medicine Program, University Center FAM, São Paulo, Brazil
| | - Karin Werther
- School of Agricultural and Veterinarian Sciences, São Paulo State University (UNESP), São Paulo, Brazil
| | | | - Renato de Lima Santos
- Veterinary School, “Universidade Federal de Minas Gerais” (UFMG), Belo Horizonte, Brazil
| | | | | | | | - Noeme Sousa Rocha
- School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), São Paulo, Brazil
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2
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Klestova Z. Possible spread of SARS-CoV-2 in domestic and wild animals and body temperature role. Virus Res 2023; 327:199066. [PMID: 36754290 PMCID: PMC9911306 DOI: 10.1016/j.virusres.2023.199066] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 02/03/2023] [Accepted: 02/04/2023] [Indexed: 02/10/2023]
Abstract
The COVID-19 pandemic was officially announced in March 2020 and is still moving around the world. Virus strains, their pathogenicity and infectivity are changing, but the ability is fast to spread and harm people's health remained, despite the seasonality seasons and other circumstances. Most likely, humanity is doomed for a long time to coexistence with this emergent pathogen, since it is already circulating not only among the human population, but and among fauna, especially among wild animals in different regions of the planet. Thus, the range the virus has expanded, the material and conditions for its evolution are more than enough. The detection of SARS-CoV-2 in known infected fauna species is analyzed and possible spread and ongoing circulation of the virus in domestic and wild animals are discussed. One of the main focus of the article is the role of animal body temperature, its fluctuations and the presence of entry receptors in the susceptibility of different animal species to SARS-CoV-2 infection and virus spreading in possible new ecological niches. The possibility of long-term circulation of the pathogen among susceptible organisms is discussed.
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Affiliation(s)
- Zinaida Klestova
- Institute for Medical Virology and Epidemiology of Viral Diseases, University Hospital Tübingen, Elfriede-Aulhorn-Straße 6, Tübingen 72076, Germany.
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de Oliveira FG, Schimming BC, da Costa IP, da Silva JP, de Lima HC, Cardoso EBM, da Silva SL, da Silva Alves L, Mamprim MJ. Computed tomography and anatomy of the abdominal structures in the giant anteater (
Myrmecophaga tridactyla
). Anat Histol Embryol 2022; 52:345-355. [PMID: 36437791 DOI: 10.1111/ahe.12892] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/02/2022] [Accepted: 11/11/2022] [Indexed: 11/29/2022]
Abstract
The giant anteater (Myrmecophaga tridactyla) is the largest of the Neotropical vermilinguans. This animal is the second mammal most frequently run over on the roads of Cerrado biome, Brazil. Therefore, it is pivotal to know the anatomy of this species to contribute to the clinical care of these animals. Thus, the aim of this study was to identify the anatomical structures in the abdominal region of the giant anteater using computed tomography (CT). For this, the tomographic analysis was performed in sequential order in the craniocaudal direction in five giant anteaters. Moreover, four giant anteater corpses were used for anatomical studies, where two corpses were sectioned in cross sections of approximately 3 cm each, and two animals were dissected to identify the abdominal organs. The association between CT and anatomical study allowed the visualization of anatomical structures found in the abdominal cavity, such as the topographic anatomy facilitates the identification of organs on CT images. The findings of this study demonstrated that CT is a good technique to provide detailed information about the anatomical structures in the abdominal cavity and that this study can be used as CT and anatomical reference for veterinarians who care for wild animals.
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Affiliation(s)
- Fernanda Gabriela de Oliveira
- School of Veterinary Medicine and Animal Science, Graduate Program in Animal Biotechnology São Paulo State University (UNESP) Botucatu São Paulo Brazil
| | - Bruno Cesar Schimming
- School of Veterinary Medicine and Animal Science, Graduate Program in Wild Animals São Paulo State University (UNESP) Botucatu São Paulo Brazil
- Laboratory of Wildlife Anatomy São Paulo State University (UNESP) Botucatu São Paulo Brazil
| | - Isis Pinto da Costa
- School of Veterinary Medicine and Animal Science, Graduate Program in Animal Biotechnology São Paulo State University (UNESP) Botucatu São Paulo Brazil
| | - Jeana Pereira da Silva
- School of Veterinary Medicine and Animal Science, Graduate Program in Wild Animals São Paulo State University (UNESP) Botucatu São Paulo Brazil
| | - Heloísa Coppini de Lima
- School of Veterinary Medicine and Animal Science, Graduate Program in Wild Animals São Paulo State University (UNESP) Botucatu São Paulo Brazil
| | - Eduardo Burgarelli Mayrink Cardoso
- School of Veterinary Medicine and Animal Science, Graduate Program in Wild Animals São Paulo State University (UNESP) Botucatu São Paulo Brazil
| | - Suelen Lorena da Silva
- School of Medicine of Botucatu, Graduate Program in Anesthesiology São Paulo State University (UNESP) Botucatu São Paulo Brazil
| | - Lidiane da Silva Alves
- School of Veterinary Medicine and Animal Science, Graduate Program in Animal Biotechnology São Paulo State University (UNESP) Botucatu São Paulo Brazil
| | - Maria Jaqueline Mamprim
- School of Veterinary Medicine and Animal Science, Graduate Program in Animal Biotechnology São Paulo State University (UNESP) Botucatu São Paulo Brazil
- School of Veterinary Medicine and Animal Science, Graduate Program in Wild Animals São Paulo State University (UNESP) Botucatu São Paulo Brazil
- School of Veterinary Medicine and Animal Science, Department of Veterinary Surgery and Animal Reproduction São Paulo State University (UNESP) Botucatu São Paulo Brazil
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