1
|
de Araújo Júnior HN, Lopes IRG, de Sousa ACFC, de Oliveira GB, de Oliveira REM, Tertulino MD, Rocha ELB, Firmino PR, Pereira AF, de Oliveira MF. Prenatal post-implantation development of collared peccaries (Pecari tajacu Linnaeus, 1758). Anat Histol Embryol 2024; 53:e13035. [PMID: 38529660 DOI: 10.1111/ahe.13035] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 10/26/2023] [Accepted: 03/07/2024] [Indexed: 03/27/2024]
Abstract
Given the importance of information on intrauterine development in diagnosing anomalies in the gestational development of the species for the development of assisted reproduction technologies as well as understanding the autonomy and responsiveness of the newborn, the aim of the present study was to describe the external morphology of collared peccary conceptuses. For this study, two conceptuses were used per gestational age of 25-120 days post-copulation (dpc) and neonates with 145 dpc, totalling 22 animals. Females were euthanised, and embryos/foetuses were examined, measured, and photographed. During the first third of the gestational period (25-50 dpc, n = 8), a marked body curvature, brain vesicles, somites, internal organs, placid lens, auricular protrusion and limb buds are noted. In the second third of the gestational period (51-100 dpc, n = 10), foetuses lose their body curvature, displaying greater anatomical definition, including skeletal, external ears, nostrils, eyelids and tactile hair formation and cranial suture closure. In addition, dorsal scent gland and genital tubercle differentiation were visualized at 50 days post-copulation. In the third of the gestational period (101-145 dpc, n = 4), the organs become completely formed, alongside skin darkening, eyelid opening, dental eruption, dorsal odorous gland development, sexual organ externalization, and fanero attachment development. These data allowed for the construction of a prenatal growth curve, providing comparative anatomy information for ungulates and further contributing towards rational reproductive management and reproductive biotechnologies for this species.
Collapse
|
2
|
Martins GM, da Silva Braz JKF, de Macedo MF, de Oliveira Vitoriano J, Alves Júnior C, Santos CS, Feijó FMC, de Oliveira MF, de Moura CEB. Enhancing Titanium Disk Performance through In-Pack Cold Atmospheric Plasma Treatment. ACS Biomater Sci Eng 2024; 10:1765-1773. [PMID: 38357873 DOI: 10.1021/acsbiomaterials.3c01388] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
While titanium dental implants have already been clinically established, ongoing research is continuously being conducted to advance the fields of osseointegration and bacterial resistance, seeking further improvements in these areas. In this study, we introduce an innovative method for treating titanium surfaces within tightly sealed packaging. Specifically, titanium discs, enclosed in surgical-grade packaging, underwent treatment using cold atmospheric plasma (CAP). The surfaces were thoroughly characterized in terms of wettability, crystalline structure, and chemical composition. Hemocompatibility analyses were conducted using blood diluted in sodium citrate (1:9) exposed to titanium discs for 30 min inside a CO2 incubator at 37 °C. Subsequently, various blood parameters were evaluated, including prothrombin time (PT), activated partial thromboplastin time (APTT), and platelet adhesion. Microbiological analyses were also performed using Pseudomonas aeruginosa (ATCC 27853) for 4 h at 37 °C. The treatment with CAP Jet resulted in a reduction in contact angle without causing any changes in the crystalline structure. No statistically significant differences were observed in the blood parameters. The plasma-treated samples exhibited lower PT and APTT values compared to those of the control group. The surfaces treated with CAP Jet showed increased platelet activation, platelet density, and thrombus formation when compared with the untreated samples. Moreover, the treated surfaces demonstrated lower bacterial colony formation compared with other surfaces.
Collapse
Affiliation(s)
- Gabriel Moura Martins
- Department of Health Sciences, Federal University of Rio Grande do Norte (UFRN), Campus Universitário UFRN, Lagoa Nova, 9078-970 Natal, RN, Brazil
| | | | - Michelly Fernandes de Macedo
- Department of Animal Sciences, Federal Rural University of Semi-Arid Region (UFERSA), Av. Francisco Mota, 572, Costa e Silva, 59625-900 Mossoró, RN, Brazil
| | - Jussier de Oliveira Vitoriano
- Plasma Laboratory Applied to Agriculture, Health and Environment, UFERSA, Av. Francisco Mota, 572, Costa e Silva, 59625-900 Mossoró, RN, Brazil
| | - Clodomiro Alves Júnior
- Department of Health Sciences, Federal University of Rio Grande do Norte (UFRN), Campus Universitário UFRN, Lagoa Nova, 9078-970 Natal, RN, Brazil
- Aeronautics Institute of Technology, Praça Marechal Eduardo Gomes, 50 - Vila das Acacias, 12228-900 São José dos Campos, SP, Brazil
- Plasma Laboratory Applied to Agriculture, Health and Environment, UFERSA, Av. Francisco Mota, 572, Costa e Silva, 59625-900 Mossoró, RN, Brazil
| | - Caio Sérgio Santos
- Laboratory of Veterinary Microbiology, Center of Agrarian Sciences, Federal Rural, UFERSA, 59625-900 Mossoró, Brazil
| | | | - Moacir Franco de Oliveira
- Department of Animal Sciences, Federal Rural University of Semi-Arid Region (UFERSA), Av. Francisco Mota, 572, Costa e Silva, 59625-900 Mossoró, RN, Brazil
| | - Carlos Eduardo Bezerra de Moura
- Department of Animal Sciences, Federal Rural University of Semi-Arid Region (UFERSA), Av. Francisco Mota, 572, Costa e Silva, 59625-900 Mossoró, RN, Brazil
| |
Collapse
|
3
|
Melo LIDS, Matias de Oliveira RE, Freitas Caetano de Sousa AC, de Oliveira RM, Lima MA, Fragoso ABL, Silva FJDL, Attademo FLN, Luna FDO, Pereira AF, de Oliveira MF. Antillean manatee (Trichechus manatus manatus Linnaeus, 1758) Tongue Morphology and Adaptive Herbivorous Implications. Microsc Microanal 2024; 30:160-168. [PMID: 38123367 DOI: 10.1093/micmic/ozad135] [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] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 10/31/2023] [Accepted: 11/24/2023] [Indexed: 12/23/2023]
Abstract
Morphological study of the tongue is an interesting way of understanding evolutionary processes associated with feeding habits. Therefore, the aim of the present study was to describe the tongue morphology of the Antillean manatee and to understand possible morphological relationships with its way of capturing food. Macroscopic dissections and light and scanning electron microscopy analyses of seven manatee tongues were performed. The tongue in Antillean manatees is a muscular and robust organ, divided into apex, body, and root. It is firmly adhered to the floor of the oral cavity. Lingual papillae were distributed over the entire tongue surface. They were identified as filiform papillae concentrated in the apex. Fungiform papillae were present on the apex and lateral regions. Foliate papillae were located on the dorsolateral portion of the root. Lentiform papillae were located across the dorsal tongue surface. The mucosa was lined by a keratinized stratified squamous epithelium presenting compound tubuloacinar glands and taste buds in the foliate papillae. The tongue of the Antillean manatee is similar to other Sirenia species, both of which share a completely herbivorous diet.
Collapse
Affiliation(s)
- Lucas Inácio Dos Santos Melo
- Postgraduate Program in Animal Science, Department of Biosciences, Biological and Health Sciences Center, Federal University of the Semi-Arid Region (UFERSA), Avenida Francisco Mota, 572, Bairro Costa e Silva, Mossoró, Rio Grande do Norte, 59625-900, Brazil
- National Center for Research and Conservation of Aquatic Mammals by Chico Mendes Institute for Biodiversity Conservation (CMA/ICMBio), Alexandre Herculano, 197, bairro Gonzaga, Santos, São Paulo, 11050-031, Brazil
| | - Radan Elvis Matias de Oliveira
- Postgraduate Program in Animal Science, Department of Biosciences, Biological and Health Sciences Center, Federal University of the Semi-Arid Region (UFERSA), Avenida Francisco Mota, 572, Bairro Costa e Silva, Mossoró, Rio Grande do Norte, 59625-900, Brazil
- Center for Environmental Studies and Monitoring (CEMAM), Rua Jorge Caminha, 118, bairro Centro, Areia Branca, Rio Grande do Norte, 59655-000, Brazil
- Cetáceos da Costa Branca Project, University of the State of Rio Grande do Norte (PCCB-UERN), Almino Afonso, 478, Mossoró, Rio Grande do Norte, 59610-210, Brazil
| | - Ana Caroline Freitas Caetano de Sousa
- Postgraduate Program in Animal Science, Department of Biosciences, Biological and Health Sciences Center, Federal University of the Semi-Arid Region (UFERSA), Avenida Francisco Mota, 572, Bairro Costa e Silva, Mossoró, Rio Grande do Norte, 59625-900, Brazil
| | - Rysónely Maclay de Oliveira
- Postgraduate Program in Animal Science, Department of Biosciences, Biological and Health Sciences Center, Federal University of the Semi-Arid Region (UFERSA), Avenida Francisco Mota, 572, Bairro Costa e Silva, Mossoró, Rio Grande do Norte, 59625-900, Brazil
- Cetáceos da Costa Branca Project, University of the State of Rio Grande do Norte (PCCB-UERN), Almino Afonso, 478, Mossoró, Rio Grande do Norte, 59610-210, Brazil
| | - Mariana Almeida Lima
- Postgraduate Program in Animal Science, Department of Biosciences, Biological and Health Sciences Center, Federal University of the Semi-Arid Region (UFERSA), Avenida Francisco Mota, 572, Bairro Costa e Silva, Mossoró, Rio Grande do Norte, 59625-900, Brazil
- Center for Environmental Studies and Monitoring (CEMAM), Rua Jorge Caminha, 118, bairro Centro, Areia Branca, Rio Grande do Norte, 59655-000, Brazil
- Cetáceos da Costa Branca Project, University of the State of Rio Grande do Norte (PCCB-UERN), Almino Afonso, 478, Mossoró, Rio Grande do Norte, 59610-210, Brazil
| | - Ana Bernadete Lima Fragoso
- Center for Environmental Studies and Monitoring (CEMAM), Rua Jorge Caminha, 118, bairro Centro, Areia Branca, Rio Grande do Norte, 59655-000, Brazil
- Cetáceos da Costa Branca Project, University of the State of Rio Grande do Norte (PCCB-UERN), Almino Afonso, 478, Mossoró, Rio Grande do Norte, 59610-210, Brazil
| | - Flávio José de Lima Silva
- Center for Environmental Studies and Monitoring (CEMAM), Rua Jorge Caminha, 118, bairro Centro, Areia Branca, Rio Grande do Norte, 59655-000, Brazil
- Cetáceos da Costa Branca Project, University of the State of Rio Grande do Norte (PCCB-UERN), Almino Afonso, 478, Mossoró, Rio Grande do Norte, 59610-210, Brazil
- Doctoral Program in Development and Environment (PRODEMA), Federal University of Rio Grande do Norte (UFRN), Avenida Salgado Filho, 3000, bairro Lagoa Nova, Natal, Rio Grande do Norte, 59064-741, Brazil
| | - Fernanda Loffler Niemeyer Attademo
- National Center for Research and Conservation of Aquatic Mammals by Chico Mendes Institute for Biodiversity Conservation (CMA/ICMBio), Alexandre Herculano, 197, bairro Gonzaga, Santos, São Paulo, 11050-031, Brazil
- Department of Zoology, Postgraduate Program in Animal Biology, Laboratory of Ecology, Behavior and Conservation, Federal University of Pernambuco (UFPE), Professor Morais Rego, s/n, Recife, Pernambuco, 50670-901, Brazil
| | - Fábia de Oliveira Luna
- National Center for Research and Conservation of Aquatic Mammals by Chico Mendes Institute for Biodiversity Conservation (CMA/ICMBio), Alexandre Herculano, 197, bairro Gonzaga, Santos, São Paulo, 11050-031, Brazil
| | - Alexsandra Fernandes Pereira
- Postgraduate Program in Animal Science, Department of Biosciences, Biological and Health Sciences Center, Federal University of the Semi-Arid Region (UFERSA), Avenida Francisco Mota, 572, Bairro Costa e Silva, Mossoró, Rio Grande do Norte, 59625-900, Brazil
| | - Moacir Franco de Oliveira
- Postgraduate Program in Animal Science, Department of Biosciences, Biological and Health Sciences Center, Federal University of the Semi-Arid Region (UFERSA), Avenida Francisco Mota, 572, Bairro Costa e Silva, Mossoró, Rio Grande do Norte, 59625-900, Brazil
| |
Collapse
|
4
|
Rocha ELB, da Silva LGVP, Barreto INR, Magalhães MDS, Dias LC, Matias de Oliveira RE, Braz JKFDS, de Oliveira MF, de Moura CEB. Gonadal Morphology of Stillborn Hawksbill Sea Turtle (Eretmochelys imbricata) Hatchlings. Microsc Microanal 2024; 30:169-177. [PMID: 38252589 DOI: 10.1093/micmic/ozae002] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 12/20/2023] [Accepted: 01/06/2024] [Indexed: 01/24/2024]
Abstract
This study aimed to investigate sexual dimorphism in stillborn hawksbill sea turtles (Eretmochelys imbricata) through gonadal morphological characterizations. Macroscopic, light microscopy, and transmission electron analyses were performed for 30 gonad-mesonephros complexes. Female gonads were spindle-shaped and present a translucent whitish appearance with a grainy texture. Male gonads were approximately ovoid with a smooth opaque white surface. A primary sexual difference concerns different marrow structures, with females presenting organized cellularity featuring oocytes, lacunae, and blood vessels, while males presented a distinct organizational medulla pattern marked by testicular cords extending throughout the gonad length. Ultrastructurally, female's stroma presented interstitial cells and an abundant cytoplasm rich in electrodense droplets and large oval germline cells, with a conspicuous and noncentral nucleus. Males, on the other hand, presented testicular cord cells containing small amounts of heterochromatin and approximately triangular apical and basal cytoplasms with an evident nucleolus characteristic of support cells. Additionally, there were cells with a large spherical nucleus compared with the cell size and a relatively scarce cytoplasm, identified as gonocytes. These findings indicate that macroscopic, microscopic, and ultrastructural evaluations are effective and reliable techniques for the sexual identification of stillborn E. imbricata hatchlings.
Collapse
Affiliation(s)
- Emanuel Lucas Bezerra Rocha
- Department of Animal Sciences, Universidade Federal Rural do Semi-Árido (UFERSA), Avenida Francisco Mota, 572, Costa e Silva, Mossoró, Rio Grande do Norte 59625-900, Brazil
| | - Lucas Gabriel Verissimo Pinheiro da Silva
- Instituto Federal do Rio Grande do Norte (IFRN), Avenida Senador Salgado Filho, 1559, Tirol, Natal, Rio Grande do Norte 59015-000, Brazil
- Associação de Proteção e Conservação Ambiental Cabo de São Roque (APC Cabo de São Roque), Rua da Praia de Caraúbas, 150, Praia de Caraúbas, Maxaranguape, Rio Grande do Norte 59580-000, Brazil
| | - Isadora Natália Rocha Barreto
- Instituto Federal do Rio Grande do Norte (IFRN), Avenida Senador Salgado Filho, 1559, Tirol, Natal, Rio Grande do Norte 59015-000, Brazil
- Associação de Proteção e Conservação Ambiental Cabo de São Roque (APC Cabo de São Roque), Rua da Praia de Caraúbas, 150, Praia de Caraúbas, Maxaranguape, Rio Grande do Norte 59580-000, Brazil
| | - Marcela Dos Santos Magalhães
- Department of Morphology, Universidade Federal do Amazonas, Avenida General Octávio Jordão Ramos, 1200, Campus Universitário Setor Norte, Coroado, Manaus 69067-005, Brazil
| | - Lucas Castanhola Dias
- Department of Morphology, Universidade Federal do Amazonas, Avenida General Octávio Jordão Ramos, 1200, Campus Universitário Setor Norte, Coroado, Manaus 69067-005, Brazil
| | - Radan Elvis Matias de Oliveira
- Department of Animal Sciences, Universidade Federal Rural do Semi-Árido (UFERSA), Avenida Francisco Mota, 572, Costa e Silva, Mossoró, Rio Grande do Norte 59625-900, Brazil
| | - Janine Karla França da Silva Braz
- Multicampi School of Medical Sciences, Universidade Federal do Rio Grande do Norte (UFRN), Rua José Evaristo, s/n, Penedo, Caicó, Rio Grande do Norte 59300-000, Brazil
| | - Moacir Franco de Oliveira
- Department of Animal Sciences, Universidade Federal Rural do Semi-Árido (UFERSA), Avenida Francisco Mota, 572, Costa e Silva, Mossoró, Rio Grande do Norte 59625-900, Brazil
| | - Carlos Eduardo Bezerra de Moura
- Department of Animal Sciences, Universidade Federal Rural do Semi-Árido (UFERSA), Avenida Francisco Mota, 572, Costa e Silva, Mossoró, Rio Grande do Norte 59625-900, Brazil
| |
Collapse
|
5
|
Praxedes ÉA, Oliveira LRMD, da Silva Viana JV, Rodrigues LLV, de Brito Vieira Neto J, Sales SLA, Dos Santos Luciano MC, Oliveira MFD, Pessoa C, Pereira AF. Serum starvation is as efficient as roscovitine on the cycle synchronization in G 0/G 1 of red-rumped agouti fibroblasts. In Vitro Cell Dev Biol Anim 2024; 60:249-257. [PMID: 38427137 DOI: 10.1007/s11626-024-00866-7] [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: 09/26/2023] [Accepted: 02/05/2024] [Indexed: 03/02/2024]
Abstract
Fibroblast cycle synchronization in G0/G1 is an essential step for nuclear reprogramming by cloning or induced cells to pluripotency. Considering the diversity among rodents and the ecological and scientific importance of these animals, we compared the contact inhibition, serum starvation, and 10 µM of roscovitine as methods of synchronization of red-rumped agouti fibroblasts. The effects of each protocol were evaluated on the percentage of cycle phase, morphology, viability, and apoptosis levels. The results showed that culturing the cells to serum starvation for 24 h (75.9%), 48 h (81.6%), 72 h (86.2%), 96 h (84.0%), and 120 h (83.7%) yielded a significantly higher percentage of cells arrested in the G0/G1 (P < 0.05) phase than cells not subjected to any cell cycle synchronization method (31.4%). Also, this effect was not different between the times of 48 and 120 h (P > 0.05). A similar response was observed for cells cultured with roscovitine for 12 h (86.9%), 24 h (74.8%), and 48 h (81.7%), with a higher percentage of synchronized cells in G0/G1 compared to cells not submitted to any synchronization treatment (52.2%). Nevertheless, this effect was best evidenced at 12 h (P < 0.05). Also, the contact inhibition for 24-120 h could not synchronize cells in G0/G1, with values ranging from 70.9 to 77.9% (P > 0.05). Moreover, no difference was observed for morphology, viability, and apoptosis levels in any synchronization method (P > 0.05). Therefore, serum starvation is as efficient as roscovitine on cycle synchronization in G0/G1 of red-rumped agouti fibroblasts.
Collapse
Affiliation(s)
- Érika Almeida Praxedes
- Laboratory of Animal Biotechnology, Universidade Federal Rural Do Semi-Árido, Av. Francisco Mota, 572, Mossoró, RN, 59625-900, Brazil
| | | | - João Vitor da Silva Viana
- Laboratory of Animal Biotechnology, Universidade Federal Rural Do Semi-Árido, Av. Francisco Mota, 572, Mossoró, RN, 59625-900, Brazil
| | - Luanna Lorenna Vieira Rodrigues
- Laboratory of Animal Biotechnology, Universidade Federal Rural Do Semi-Árido, Av. Francisco Mota, 572, Mossoró, RN, 59625-900, Brazil
| | | | | | | | - Moacir Franco de Oliveira
- Laboratory of Animal Biotechnology, Universidade Federal Rural Do Semi-Árido, Av. Francisco Mota, 572, Mossoró, RN, 59625-900, Brazil
| | - Cláudia Pessoa
- Experimental Oncology Laboratory, Universidade Federal Do Ceará, Fortaleza, CE, Brazil
| | - Alexsandra Fernandes Pereira
- Laboratory of Animal Biotechnology, Universidade Federal Rural Do Semi-Árido, Av. Francisco Mota, 572, Mossoró, RN, 59625-900, Brazil.
| |
Collapse
|
6
|
Silveira JM, Cesar Dos Santos A, Calado de Brito DC, de Oliveira MF, Conley AJ, de Assis Neto AC. Morphohistometric and steroidogenic parameters during testicular and epididymal differentiation in cavy (Galea spixii) fetuses. Reprod Biol 2024; 24:100829. [PMID: 38039944 DOI: 10.1016/j.repbio.2023.100829] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 10/30/2023] [Accepted: 11/17/2023] [Indexed: 12/03/2023]
Abstract
Sexual differentiation and steroidogenic mechanisms have an important impact on postnatal gonadal phenotypic development. Thus, establishing the activities that lead to male phenotypic development can provide a better understanding of this process. This study examined the prenatal development of cavies to establish morphological and histometric development patterns and protein and enzyme immunolocalization processes that are responsible for androgen synthesis in the testes and epididymis. Histological and histometric analyses of the diameter of the seminiferous cords and epididymal ducts of male fetuses on Days 25, 30, 40, and 50 were performed, as well as immunohistochemistry of the steroidogenic enzymes 5α-reductase and 17β-HSD, the androgen receptor, and the anti-Müllerian hormone (AMH). Our findings showed a cellular grouping of gonocytes from Day 30 onward that was characteristic of the seminiferous cord, which was not present in the lumen at any of the studied dates. From Day 50 onward, the differentiation of the three anatomical regions of the epididymis was evident, the head (caput), body (corpus), and tail (cauda), with tissue distinctions. Furthermore, the diameters of the seminiferous cords and epididymal ducts significantly increased with age. On Day 50, the tail showed the greatest diameter of the three regions. The Sertoli and Leydig cells exhibited AMH immunoreactivity at all dates. In addition, the Leydig cells and epididymal epithelial tissue were immunopositive for 5α-reductase, 17β-HSD, and the androgen receptor; therefore, these factors influenced the development and maintenance of the testis and epididymis during cavy prenatal development.
Collapse
Affiliation(s)
- Júlia Moreira Silveira
- Department of Surgery, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Amilton Cesar Dos Santos
- Department of Surgery, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | | | | | - Alan James Conley
- Department of Population Health & Reproduction, School of Veterinary Medicine, University of California, UC, Davis, CA, USA
| | - Antonio Chaves de Assis Neto
- Department of Surgery, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil.
| |
Collapse
|
7
|
Bezerra LGP, Silva AM, Dantas MRT, dos Santos RP, Moreira SSJ, Pereira AG, de Oliveira MF, Comizzoli P, Silva AR. Development of assays for the characterization of sperm motility parameters, viability, and membrane integrity in the epididymis and vas deferens of the greater rhea ( Rhea americana). Anim Reprod 2024; 20:e20230113. [PMID: 38213765 PMCID: PMC10782801 DOI: 10.1590/1984-3143-ar2023-0113] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 12/06/2023] [Indexed: 01/13/2024] Open
Abstract
The objectives of the study were to (1) describe the kinematic parameters of spermatozoa (2) compare methods of evaluating sperm viability (3) validate assays of functionality and integrity of the sperm membrane and (4) evaluate possible changes between spermatozoa from the epididymis and the vas deferens of the greater rhea. Semen samples were recovered from 7 adult individuals. Sperm motility was characterized by adjusting the set-up for Computer-assisted semen analysis (CASA) to that new species. For sperm viability evaluation, smears of bromophenol blue and eosin-nigrosine dyes were used. Five solutions of different osmolarities were then tested for the hypoosmotic swelling test (HOST). The combination of fluorescent probes (propidium iodide - IP and Hoechst 33342) was also used to assess plasma membrane integrity. Data were presented as mean ± SEM. Rhea spermatozoa from the vas deferens had an overall motility of 14.6 ± 2.5%. The bromophenol blue staining technique revealed that 64.6 ± 5.2% sperm were viable, while that proportion was 72.1 ± 2.5% using eosin-nigrosine. An average of 77.6 ± 4.8% of spermatozoa reacted to the HOST with distilled water at 0 mOsm/l. Fluorescent probes indicated that 65.3 ± 2.6% of spermatozoa had intact membranes. Interestingly, no statistical differences were observed between the parameters analyzed in the epididymal spermatozoa and the vas deferens. These new assays set reference values that can now be used to further exploration of sperm handling conditions and freezing protocols in rheas.
Collapse
Affiliation(s)
- Luana Grasiele Pereira Bezerra
- Laboratory of Animal Germplasm Conservation, Department of Animal Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brasil
| | - Andréia Maria Silva
- Laboratory of Animal Germplasm Conservation, Department of Animal Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brasil
| | - Maiko Roberto Tavares Dantas
- Laboratory of Animal Germplasm Conservation, Department of Animal Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brasil
| | - Romário Parente dos Santos
- Laboratory of Animal Germplasm Conservation, Department of Animal Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brasil
| | - Samara Sandy Jeronimo Moreira
- Laboratory of Animal Germplasm Conservation, Department of Animal Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brasil
| | - Ana Glória Pereira
- Laboratory of Animal Germplasm Conservation, Department of Animal Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brasil
| | - Moacir Franco de Oliveira
- Laboratory of Animal Germplasm Conservation, Department of Animal Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brasil
| | - Pierre Comizzoli
- Smithsonian National Zoo and Conservation Biology Institute, Washington, USA
| | - Alexandre Rodrigues Silva
- Laboratory of Animal Germplasm Conservation, Department of Animal Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brasil
| |
Collapse
|
8
|
Tertulino MD, de Sousa ACFC, Gurgel JVDO, Lopes IRG, Diniz JARA, de Paula VV, de Paula Antunes JMA, de Oliveira REM, de Oliveira MF. Abdominal aortic branches of red-rumped agouti (Dasyprocta leporina Linnaeus, 1758). Anat Histol Embryol 2023; 52:975-982. [PMID: 37649409 DOI: 10.1111/ahe.12957] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 08/03/2023] [Accepted: 08/16/2023] [Indexed: 09/01/2023]
Abstract
Understanding the cardiovascular system is fundamental in diagnosing pathologies and interpreting exams, such as contrast radiographs. In this context, the present study describes the collateral abdominal aorta artery branches of red-rumped agouti. Ten red-rumped agoutis, six males and four females, were assessed. The vascular system was perfused with Neoprene 450 latex coloured with a yellow pigment, dissected and analysed. Three euthanized animals were perfused with a barium sulfate solution (1 g mL-1 ) associated with latex Neoprene 450 at a 1:3 ratio to obtain contrast-enhanced radiographs. The abdominal aorta emitted the celiac artery, which in turn originated the left gastric, hepatic and splenic arteries. The second collateral branch comprised the cranial mesenteric artery, followed by the renal arteries, which emitted the adrenal arteries, with the caudal emergence of the gonadal arteries. The caudal mesenteric artery appeared in a caudal direction. The abdominal aorta divided after reaching the pelvic cavity entrance, originating the right and left common iliac arteries. Before its bifurcation, the abdominal aorta dorsocaudally emitted its last collateral branch, the median sacral artery. The collateral branches of the aorta, therefore, resemble previously described rodent patterns, with few variations.
Collapse
Affiliation(s)
- Moisés Dantas Tertulino
- Applied Animal Morphophysiology Laboratory (LABMORFA), Department of Animal Sciences (DCA), Universidade Federal Rural do Semi-Árido- UFERSA, Mossoró, Brazil
| | - Ana Caroline Freitas Caetano de Sousa
- Applied Animal Morphophysiology Laboratory (LABMORFA), Department of Animal Sciences (DCA), Universidade Federal Rural do Semi-Árido- UFERSA, Mossoró, Brazil
| | - João Vitor de Oliveira Gurgel
- Applied Animal Morphophysiology Laboratory (LABMORFA), Department of Animal Sciences (DCA), Universidade Federal Rural do Semi-Árido- UFERSA, Mossoró, Brazil
| | - Igor Renno Guimarães Lopes
- Applied Animal Morphophysiology Laboratory (LABMORFA), Department of Animal Sciences (DCA), Universidade Federal Rural do Semi-Árido- UFERSA, Mossoró, Brazil
- Graduate Program in Animal Science (PPGCA), Department of Animal Sciences (DCA), Universidade Federal Rural do Semi-Árido-UFERSA, Mossoró, Brazil
| | - João Augusto Rodrigues Alves Diniz
- Applied Animal Morphophysiology Laboratory (LABMORFA), Department of Animal Sciences (DCA), Universidade Federal Rural do Semi-Árido- UFERSA, Mossoró, Brazil
- Graduate Program in Animal Science (PPGCA), Department of Animal Sciences (DCA), Universidade Federal Rural do Semi-Árido-UFERSA, Mossoró, Brazil
| | - Valéria Veras de Paula
- Graduate Program in Animal Science (PPGCA), Department of Animal Sciences (DCA), Universidade Federal Rural do Semi-Árido-UFERSA, Mossoró, Brazil
| | | | - Radan Elvis Matias de Oliveira
- Applied Animal Morphophysiology Laboratory (LABMORFA), Department of Animal Sciences (DCA), Universidade Federal Rural do Semi-Árido- UFERSA, Mossoró, Brazil
- Graduate Program in Animal Science (PPGCA), Department of Animal Sciences (DCA), Universidade Federal Rural do Semi-Árido-UFERSA, Mossoró, Brazil
| | - Moacir Franco de Oliveira
- Applied Animal Morphophysiology Laboratory (LABMORFA), Department of Animal Sciences (DCA), Universidade Federal Rural do Semi-Árido- UFERSA, Mossoró, Brazil
- Graduate Program in Animal Science (PPGCA), Department of Animal Sciences (DCA), Universidade Federal Rural do Semi-Árido-UFERSA, Mossoró, Brazil
| |
Collapse
|
9
|
de Oliveira GB, de Araújo Júnior HN, de Moura CEB, Favaron PO, Pereira AF, de Oliveira MF. Placental development in the early stages of red-rumped agouti pregnancy ( Dasyprocta leporina Linnaeus, 1758). J Vet Sci 2023; 24:e49. [PMID: 38031643 PMCID: PMC10556294 DOI: 10.4142/jvs.22323] [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: 12/20/2022] [Revised: 04/18/2023] [Accepted: 05/17/2023] [Indexed: 12/01/2023] Open
Abstract
BACKGROUND Hystricomorpha rodents display a similar placentation model to humans. The present study was carried out considering the scarcity of information concerning the placental development in agouti. OBJECTIVE Describe the microscopy of the placenta, subplacenta and yolk sac of agoutis in early pregnancy and report on the inversion of the yolk sac. METHODS Fifteen females between the 14th-32nd day of gestation were used following euthanasia. Gestational buttons were collected, fixed, processed, stained to optical microscopy or immunohistochemistry. RESULTS Chorioallantoic placenta (CP) ranged from conical to a half-sphere, as follows: from the 14th to 17th day, the CP displays an inverted "V" shape, predominantly formed by cytotrophoblasts; from 20 to 22 days, formed almost entirely by cytotrophoblasts; at 28 days, a half sphere, with distinct lobes and interlobular area, numerous maternal gaps delimited by syncytiotrophoblasts and trophoblast giant cells; at 32 days, globose and undergoing the maturation process. Subplacenta, located between decidua and CP, initially presents septa consisting of simple columnar epithelium and after 17 days, comprising stratified epithelium. Visceral yolk sac (VYS) is attached to two CP projections between 14 and 17 days, formed by a simple cubic epithelium and inverted. Between 20 and 22 days, the epithelium displays apical villous projections with cytoplasmic vacuoles and a vascularized mesoderm. After the 24th day, the VYS near the placenta is pleated, very vascularized and villous, with decreased villi sizes further away from the placenta. CONCLUSION The agouti CP displays similar characteristics to other hystricomorpha, including placenta lobulation, a subplacenta and an inverted vitelline placenta.
Collapse
Affiliation(s)
| | | | | | | | | | - Moacir Franco de Oliveira
- Department of Animal Science, Universidade Federal Rural do Semi-Árido, Mossoró, RN 59.625-900, Brasil
| |
Collapse
|
10
|
Barbosa-de-Oliveira MC, Oliveira-Melo P, Gonçalves da Silva MH, Santos da Silva F, Andrade Carvalho da Silva F, Silva de Araujo BV, Franco de Oliveira M, Tadeu Correia A, Miyoshi Sakamoto S, Valença SS, Lanzetti M, Schmidt M, Kennedy-Feitosa E. Modulation of Alveolar Macrophage Activity by Eugenol Attenuates Cigarette-Smoke-Induced Acute Lung Injury in Mice. Antioxidants (Basel) 2023; 12:1258. [PMID: 37371988 DOI: 10.3390/antiox12061258] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/08/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023] Open
Abstract
This study investigates the role of eugenol (EUG) on CS-induced acute lung injury (ALI) and how this compound is able to modulate macrophage activity. C57BL/6 mice were exposed to 12 cigarettes/day/5days and treated 15 min/day/5days with EUG. Rat alveolar macrophages (RAMs) were exposed to CSE (5%) and treated with EUG. In vivo, EUG reduced morphological changes inflammatory cells, oxidative stress markers, while, in vitro, it induced balance in the oxidative stress and reduced the pro-inflammatory cytokine release while increasing the anti-inflammatory one. These results suggest that eugenol reduced CS-induced ALI and acted as a modulator of macrophage activity.
Collapse
Affiliation(s)
- Maria Clara Barbosa-de-Oliveira
- Morphophysiopharmacology Laboratory, Department of Health Sciences, Federal University of the Semi-Arid Region, Mossoró 59625-900, Brazil
| | - Paolo Oliveira-Melo
- Laboratório de Pesquisa em Cirurgia Torácica, Faculdade de Medicina HCFMUSP, Universidade de Sao Paulo, Sao Paulo 05508-220, Brazil
| | | | - Flávio Santos da Silva
- Morphophysiopharmacology Laboratory, Department of Health Sciences, Federal University of the Semi-Arid Region, Mossoró 59625-900, Brazil
| | - Felipe Andrade Carvalho da Silva
- Morphophysiopharmacology Laboratory, Department of Health Sciences, Federal University of the Semi-Arid Region, Mossoró 59625-900, Brazil
| | - Bruno Vinicios Silva de Araujo
- Morphophysiopharmacology Laboratory, Department of Health Sciences, Federal University of the Semi-Arid Region, Mossoró 59625-900, Brazil
| | | | - Aristides Tadeu Correia
- Laboratório de Pesquisa em Cirurgia Torácica, Faculdade de Medicina HCFMUSP, Universidade de Sao Paulo, Sao Paulo 05508-220, Brazil
| | - Sidnei Miyoshi Sakamoto
- Morphophysiopharmacology Laboratory, Department of Health Sciences, Federal University of the Semi-Arid Region, Mossoró 59625-900, Brazil
| | - Samuel Santos Valença
- Institute of Biomedical Sciences, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro 21941-590, Brazil
| | - Manuella Lanzetti
- Institute of Biomedical Sciences, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro 21941-590, Brazil
| | - Martina Schmidt
- Department of Molecular Pharmacology, University of Groningen, Antonius Deusinglaan 1, Building 3211, Room 406, 9713 AV Groningen, The Netherlands
- Groningen Research Institute of Asthma and COPD, GRIAC, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, The Netherlands
| | - Emanuel Kennedy-Feitosa
- Morphophysiopharmacology Laboratory, Department of Health Sciences, Federal University of the Semi-Arid Region, Mossoró 59625-900, Brazil
| |
Collapse
|
11
|
Gama GSP, Pimenta AS, Feijó FMC, Santos CS, Fernandes BCC, de Oliveira MF, de Souza EC, Monteiro TVC, Fasciotti M, de Azevedo TKB, de Melo RR, Júnior AFD. Antimicrobial activity and chemical profile of wood vinegar from eucalyptus (Eucalyptus urophylla x Eucalyptus grandis - clone I144) and bamboo (Bambusa vulgaris). World J Microbiol Biotechnol 2023; 39:186. [PMID: 37150799 DOI: 10.1007/s11274-023-03628-x] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 04/20/2023] [Indexed: 05/09/2023]
Abstract
Microbial resistance to drugs is a public health problem; therefore, there is a search for alternatives to replace conventional products with natural agents. One of the potential antimicrobial agents is wood vinegar derived from the carbonization of lignocellulosic raw materials. The objectives of the present work were to evaluate the antibacterial and antifungal action of two kinds of wood vinegar (WV), one of Eucalyptus urograndis wood and another of Bambusa vulgaris biomass, and determine their chemical profile. The antimicrobial effect was assessed against Staphylococcus aureus, Pseudomonas aeruginosa, Salmonella enteritidis, Escherichia coli, Streptococcus agalactiae, and Candida albicans. The minimum inhibitory concentration and the minimum bactericidal and fungicidal concentrations were determined. Micrographs of the microorganisms before and after exposure to both kinds of wood vinegar were obtained by scanning electron microscopy. The chemical profile of the eucalyptus and bamboo vinegar was carried out by gas chromatography and mass spectrometry (GC/MS). Both types of WV presented significant antimicrobial activity, with the bamboo one having a higher efficiency. Both studied pyroligneous extracts seem promising for developing natural antimicrobials due to their efficiency against pathogens. GC/MS analyses demonstrated that the chemical profiles of both kinds of WV were similar but with some significant differences. The major component of the eucalyptus vinegar was furfural (17.2%), while the bamboo WV was phenol (15.3%). Several compounds in both WVs have proven antimicrobial activity, such as acetic acid, furfural, phenol, cresols, guaiacol, and xylenols. Together, they are the major in the chemical composition of the organic fraction of both WVs. Bamboo vinegar had a more expressive content of organic acids. Micrographs of microorganisms taken after exposure to both kinds of wood vinegar displayed several cell modifications. The potential of both types of wood vinegar as a basis for natural antimicrobial products seems feasible due to their proven effect on inhibiting the microorganisms' growth assessed in this experiment.
Collapse
Affiliation(s)
- Gil Sander Próspero Gama
- Graduate Program in Forest Sciences, Universidade Federal do Rio Grande do Norte, Rodovia RN 160, Km 03 S/N, Distrito de Jundiaí, Macaíba, RN, CEP 59.280-000, Brazil
| | - Alexandre Santos Pimenta
- Graduate Program in Forest Sciences, Universidade Federal do Rio Grande do Norte, Rodovia RN 160, Km 03 S/N, Distrito de Jundiaí, Macaíba, RN, CEP 59.280-000, Brazil.
| | - Francisco Marlon Carneiro Feijó
- Graduate Program in Environment, Technology and Society - PPGATS, Universidade Federal Rural do Semiárido - UFERSA, Av. Francisco Mota, 572 - Bairro Costa E Silva, Mossoró, RN, CEP 59.625-900, Brazil
| | - Caio Sérgio Santos
- Graduate Program in Environment, Technology and Society - PPGATS, Universidade Federal Rural do Semiárido - UFERSA, Av. Francisco Mota, 572 - Bairro Costa E Silva, Mossoró, RN, CEP 59.625-900, Brazil
| | - Bruno Caio Chaves Fernandes
- Agricultural Sciences Center - CCA, Laboratory of Electron Microscopy - CPVSA, Universidade Federal Rural do Semiárido - UFERSA, Av. Francisco Mota, 572 - Bairro Costa E Silva, Mossoró, RN, CEP 59.625-900, Brazil
| | - Moacir Franco de Oliveira
- Graduate Program in Environment, Technology and Society - PPGATS, Universidade Federal Rural do Semiárido - UFERSA, Av. Francisco Mota, 572 - Bairro Costa E Silva, Mossoró, RN, CEP 59.625-900, Brazil
| | - Elias Costa de Souza
- Department of Technology and Natural Resources, Universidade Do Estado Do Pará, Rodovia PA-125, Paragominas, PA, CEP 68.625-000, Brazil
| | - Thays V C Monteiro
- Laboratory of Organic Analyses, Instituto Nacional de Metrologia, Qualidade E Tecnologia, Av. Nossa Sra. das Graças, 50, Xerém, Duque de Caxias, RJ, CEP 25.250-020, Brazil
| | - Maíra Fasciotti
- Laboratory of Organic Analyses, Instituto Nacional de Metrologia, Qualidade E Tecnologia, Av. Nossa Sra. das Graças, 50, Xerém, Duque de Caxias, RJ, CEP 25.250-020, Brazil
| | - Tatiane Kelly Barbosa de Azevedo
- Graduate Program in Forest Sciences, Universidade Federal do Rio Grande do Norte, Rodovia RN 160, Km 03 S/N, Distrito de Jundiaí, Macaíba, RN, CEP 59.280-000, Brazil
| | - Rafael Rodolfo de Melo
- Graduate Program in Environment, Technology and Society - PPGATS, Universidade Federal Rural do Semiárido - UFERSA, Av. Francisco Mota, 572 - Bairro Costa E Silva, Mossoró, RN, CEP 59.625-900, Brazil
| | - Ananias Francisco Dias Júnior
- Graduate Program in Forest Sciences, Forest Engineering, Universidade Federal do Espírito Santo - UFES, Av. Gov. Lindemberg, 316, Centro, Jerônimo Monteiro City, ES, CEP 29.550-000, Brazil
| |
Collapse
|
12
|
Gadelha AIBB, de Oliveira MF, de Sousa ACFC, Diniz JARA, Lopes IRG, Fernandes BCC, Pereira AF, de Moura CEB. Extraembryonic membrane morphology in greater rheas ( Rhea americana americana Linnaeus, 1758). ZOOMORPHOLOGY 2023; 142:1-16. [PMID: 37360222 PMCID: PMC10027282 DOI: 10.1007/s00435-023-00602-x] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/16/2023] [Accepted: 02/27/2023] [Indexed: 03/29/2023]
Abstract
The greater rhea, Rhea americana, is a wild ratite of high scientific importance and significant and zootechnical value, especially considering the current development state of Brazilian poultry production, where research aimed at increasing the productivity of these animals has become extremely relevant. Studies concerning fetal attachments and embryonic development are paramount, as they can provide essential information concerning reproductive and nutritional animal management. However, a lack of information on greater rhea fetal morphology is noted. Therefore, the aim of the present study was to establish a standard model for fetal attachments in this species. Greater rhea eggs were incubated from 0 to 36 days, and macroscopic and microscopic embryonic attachment characterizations were performed. Histologically, all embryonic annexes exhibit germ layers, namely the ectoderm (outer layer), mesoderm (middle layer) and endoderm (inner layer). The findings indicate that greater rhea development patterns are similar to other birds.
Collapse
Affiliation(s)
- Ana Indira Bezerra Barros Gadelha
- Postgraduate Program in Animal Science, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
- Department of Animal Sciences, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
- Masters Program in Development and Environment, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
| | - Moacir Franco de Oliveira
- Postgraduate Program in Animal Science, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
| | | | - João Augusto Rodrigues Alves Diniz
- Postgraduate Program in Animal Science, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
- Department of Animal Sciences, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
- Doctoral Program in Development and Environment, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
| | - Igor Renno Guimarães Lopes
- Postgraduate Program in Animal Science, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
- Department of Animal Sciences, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
- Doctoral Program in Development and Environment, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
| | | | - Alexsandra Fernandes Pereira
- Postgraduate Program in Animal Science, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
| | | |
Collapse
|
13
|
Oliveira REMD, Attademo FLN, Sousa ACFCD, Magalhães MDS, Oliveira RMD, de Moura CEB, Silva AR, Pereira AF, Fragoso ABL, Silva FJDL, Oliveira MFD. Oropharyngeal cavity floor morphology in Eretmochelys imbricata (Testudines: Cheloniidae) hatchlings and evolutionary implications. Anat Rec (Hoboken) 2023; 306:343-353. [PMID: 36054069 DOI: 10.1002/ar.25061] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 03/05/2022] [Revised: 08/15/2022] [Accepted: 08/17/2022] [Indexed: 01/25/2023]
Abstract
Morphological studies of the oropharyngeal cavity of chelonians have become an interesting tool in the understanding of evolutionary processes associated with feeding habits in aquatic animals and the transition from aquatic to terrestrial forms. In this context, the aim of the present study was to describe the oropharyngeal cavity floor morphology of hawksbill sea turtle (Eretmochelys imbricata) hatchlings. Ten dead hatchlings of undefined sex were obtained from nests hatched on the coast of the state of Rio Grande do Norte, Brazil. The heads of each specimen were fixed, dissected, and analyzed at the macroscopic and microscopic levels. The oropharyngeal cavity floor of the hawksbill sea turtle hatchlings is formed by the tongue, pharynx, floor muscles, and hyolingual skeleton, delimited in the rostral and lateral directions by a keratinized beak, called the rhamphotheca, and in the caudal region at the limit between the pharynx and the esophagus. The tongue muscles and the muscles that support the floor of the oral cavity comprise the following: m. hypoglossohyoideus, m. hypoglossoglossus, m. hyoglossus, m. genioglossus, m. constrictor laryngis, m. geniohyoideus pars lateralis, and m. intermandibularis. The oropharyngeal cavity floor mucosa is formed by keratinized stratified squamous epithelium and the lamina propria is formed by loose connective tissue. The floor mucosa is devoid of taste buds. We believe that the basic oropharyngeal cavity floor characteristics in hawksbill sea turtle hatchlings may comprise indications that these animals are plesiomorphic and that semiaquatic and terrestrial turtles may have undergone adaptations to feed out of water.
Collapse
Affiliation(s)
- Radan Elvis Matias de Oliveira
- Programa de Pós-Graduação em Ciência Animal (PPGCA), Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró, Rio Grande do Norte, Brazil.,Centro de Estudos e Monitoramento Ambiental (CEMAM), Areia Branca, Rio Grande do Norte, Brazil.,Projeto Cetáceos da Costa Branca (PCCB), Universidade do Estado do Rio Grande do Norte (UERN), Mossoró, Rio Grande do Norte, Brazil
| | - Fernanda Loffler Niemeyer Attademo
- Centro de Estudos e Monitoramento Ambiental (CEMAM), Areia Branca, Rio Grande do Norte, Brazil.,Centro Universitário Internacional (UNINTER), Curitiba, Paraná, Brazil
| | - Ana Caroline Freitas Caetano de Sousa
- Departamento de Ciências Animais, Laboratório de Morfofisiologia Animal Aplicada (LABMORFA), Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró, Rio Grande do Norte, Brazil
| | | | - Rysónely Maclay de Oliveira
- Programa de Pós-Graduação em Ciência Animal (PPGCA), Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró, Rio Grande do Norte, Brazil.,Projeto Cetáceos da Costa Branca (PCCB), Universidade do Estado do Rio Grande do Norte (UERN), Mossoró, Rio Grande do Norte, Brazil
| | - Carlos Eduardo Bezerra de Moura
- Programa de Pós-Graduação em Ciência Animal (PPGCA), Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró, Rio Grande do Norte, Brazil
| | - Alexandre Rodrigues Silva
- Programa de Pós-Graduação em Ciência Animal (PPGCA), Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró, Rio Grande do Norte, Brazil
| | - Alexsandra Fernandes Pereira
- Programa de Pós-Graduação em Ciência Animal (PPGCA), Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró, Rio Grande do Norte, Brazil
| | - Ana Bernadete Lima Fragoso
- Centro de Estudos e Monitoramento Ambiental (CEMAM), Areia Branca, Rio Grande do Norte, Brazil.,Projeto Cetáceos da Costa Branca (PCCB), Universidade do Estado do Rio Grande do Norte (UERN), Mossoró, Rio Grande do Norte, Brazil
| | - Flávio José de Lima Silva
- Centro de Estudos e Monitoramento Ambiental (CEMAM), Areia Branca, Rio Grande do Norte, Brazil.,Projeto Cetáceos da Costa Branca (PCCB), Universidade do Estado do Rio Grande do Norte (UERN), Mossoró, Rio Grande do Norte, Brazil.,Programa Regional de Pós-Graduação em Desenvolvimento e Meio Ambiente (PRODEMA), Universidade Federal do Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte, Brazil
| | - Moacir Franco de Oliveira
- Programa de Pós-Graduação em Ciência Animal (PPGCA), Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró, Rio Grande do Norte, Brazil
| |
Collapse
|
14
|
Rebouças CEV, Diniz JARA, de Sousa ACFC, de Oliveira REM, de Moura CEB, Guerra RR, Pereira AF, de Assis Neto AC, de Oliveira MF. Morphology of the major salivary glands of Spix's
Yellow‐Toothed
Cavys (
Galea spixii
Wagler
, 1831). ACTA ZOOL-STOCKHOLM 2023. [DOI: 10.1111/azo.12456] [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: 02/02/2023]
Affiliation(s)
- Carlos Eduardo Vale Rebouças
- Applied Animal Morphophysiology Laboratory, Department of Animal Sciences Universidade Federal Rural do Semi‐Árido Mossoró RN Brazil
- Postgraduate Program in Animal Science, Department of Animal Sciences Universidade Federal Rural do Semi‐Árido Mossoró RN Brazil
| | - João Augusto Rodrigues Alves Diniz
- Applied Animal Morphophysiology Laboratory, Department of Animal Sciences Universidade Federal Rural do Semi‐Árido Mossoró RN Brazil
- Postgraduate Program in Animal Science, Department of Animal Sciences Universidade Federal Rural do Semi‐Árido Mossoró RN Brazil
| | | | - Radan Elvis Matias de Oliveira
- Applied Animal Morphophysiology Laboratory, Department of Animal Sciences Universidade Federal Rural do Semi‐Árido Mossoró RN Brazil
- Postgraduate Program in Animal Science, Department of Animal Sciences Universidade Federal Rural do Semi‐Árido Mossoró RN Brazil
| | - Carlos Eduardo Bezerra de Moura
- Postgraduate Program in Animal Science, Department of Animal Sciences Universidade Federal Rural do Semi‐Árido Mossoró RN Brazil
| | - Ricardo Romão Guerra
- Laboratory of Histology, Department of Veterinary Sciences Universidade Federal da Paraíba Areia PB Brazil
| | - Alexsandra Fernandes Pereira
- Postgraduate Program in Animal Science, Department of Animal Sciences Universidade Federal Rural do Semi‐Árido Mossoró RN Brazil
| | - Antônio Chaves de Assis Neto
- Department of Surgery, Anatomy of Domestic and Wild Animals Sector, School of Veterinary Medicine Universidade de São Paulo São Paulo SP Brazil
| | - Moacir Franco de Oliveira
- Applied Animal Morphophysiology Laboratory, Department of Animal Sciences Universidade Federal Rural do Semi‐Árido Mossoró RN Brazil
- Postgraduate Program in Animal Science, Department of Animal Sciences Universidade Federal Rural do Semi‐Árido Mossoró RN Brazil
| |
Collapse
|
15
|
de Oliveira FD, Santos PRDS, de Oliveira MF, de Assis AC. Galea spixii embryos have potential to produce steroid hormones. Anim Reprod 2023; 19:e20220091. [PMID: 36686856 PMCID: PMC9844670 DOI: 10.1590/1984-3143-ar2022-0091] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 12/09/2022] [Indexed: 01/24/2023] Open
Abstract
Estrogens and progestogens are hormones produced by maternal organs and it is required for recognition and maintenance of pregnancy. In addition, the embryo may also be a source. For this, the aim was to identify steroidogenic expression on Galea spixii embryos early in the embryonic period. Embryos were collected on Days 10 and 15 of gestation; some were fixed in 4% paraformaldehyde for morphological and immunohistochemical analysis (P450arom), whereas others had RNA extracted to determine presence of CYP19a1 gene. In addition, for immunochemistry, maternal ovaries were collected as positive control tissues. Maternal tissues had positive staining for aromatase, whereas none of the embryos stained for P450 aromatase. Based on qPCR reactions, CYP19a1 gene were expressed in all embryos. Galea spixii embryos expressed steroidogenic genes during the post-implantation period, indicating they have the potential to produce steroid hormones.
Collapse
Affiliation(s)
- Franceliusa Delys de Oliveira
- Departamento de Cirurgia, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Paulo Ramos da Silva Santos
- Departamento de Cirurgia, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
| | | | - Antônio Chaves de Assis
- Departamento de Cirurgia, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil,Corresponding author:
| |
Collapse
|
16
|
da Silva Viana JV, de Medeiros Paiva Moura LF, Almeida Praxedes É, Costa de Aquino LV, do Nascimento MB, Prazeres Júnior FR, de Oliveira MF, Fernandes Pereira A. Effects of Vitrification Techniques on the Formation of Skin Cryobank of the Ocelot ( Leopardus Pardalis). cryo letters 2023. [DOI: 10.54680/fr23110110412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BACKGROUND: Skin cryobanks represent important tools for the conservation of the maximum genetic representation of a population, especially those with a certain degree of threat to extinction, such as the ocelot. A relevant step towards the proper establishment of these banks
is the definition of adequate cryopreservation techniques for the conservation of the skin. OBJECTIVE: We evaluated the effects of two different techniques [direct vitrification in cryovials (DVC) and solid-surface vitrification (SSV)] for the preservation of ear skin derived from
ocelot. MATERIALS & METHODS: For both techniques, we vitrified the ear skin using Dulbecco's modified Eagle's medium with 3.0 M dimethyl sulfoxide, 0.25 M sucrose, and 10% fetal bovine serum. Non-cryopreserved tissues were used as control (control group). All tissues were analyzed
for their morphometric characteristics by conventional histology and morphological/functional analysis by cell ability during the culture. RESULTS: While tissues cryopreserved by DVC showed similar values for dermis thickness and number of perinuclear halos to the control, tissues cryopreserved
by SSV showed similarities to the control regarding the number of melanocytes, percentage of collagen fibers, and numbers of viable cells by apoptosis analysis. Additionally, none of the vitrification techniques affected stratum corneum thickness, number of keratinocytes, tissue proliferative
activity, cell viability, or metabolism. CONCLUSION: Both vitrification techniques (DVC and SSV) can be used for the conservation of ocelot skin; however, SSV guarantees a higher cellular quality after in vitro tissue culture in most of the parameters evaluated, such as viability, metabolism,
and apoptosis analysis.
Collapse
Affiliation(s)
- João Vitor da Silva Viana
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid (UFERSA), Mossoro, RN, Brazil
| | | | - Érika Almeida Praxedes
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid (UFERSA), Mossoro, RN, Brazil
| | | | | | | | | | | |
Collapse
|
17
|
Rocha LIQ, Oliveira MFDS, Dias LC, Franco de Oliveira M, de Moura CEB, Magalhães MDS. Heart morphology during the embryonic development of Podocnemis unifilis Trosquel 1948 (Testudines: Podocnemididae). Anat Rec (Hoboken) 2023; 306:193-212. [PMID: 35808951 DOI: 10.1002/ar.25041] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 06/09/2022] [Accepted: 06/27/2022] [Indexed: 01/29/2023]
Abstract
Cardiogenesis is similar in all vertebrates, but differences in the valvuloseptal morphogenesis among non-crocodilian reptiles, birds, and mammals are noted. The origin of mesenchymal structures such as valves that regulate the passage of blood and the formation of partial septa that prevent the complete mixing of oxygen-rich and low-oxygen blood present in adult chelonians are essential in the evolutionary understanding of complete septation, endothermy and malformations, even in mammals. In this context, this study analyzed the heart morphogenesis of Podocnemis unifilis (Testudines: Podocnemididae) from the 4th to the 60th day of incubation. We identified the tubular heart stage, folding of the cardiac tube and expansion of the atrial and ventricular compartments followed by atrial septation by the septum primum, ventricle septation by partial septa, outflow tract septation and the formation of bicuspid valves with cartilage differentiation at the base. The formation of the first atrial septum with the mesenchymal cap is noted during the development of the atrial septum, joining the atrioventricular cushion on the 17th day and completely dividing the atria. Small secondary perforations appeared in the mid-cranial part, observed up to the 45th day. Partial ventricle septation into the pulmonary, venous, and arterial subcompartments takes place by trabeculae carneae thickening and grouping on the 15th day. The outflow tract forms the aorticopulmonary and interaortic septa on the 16th day and the bicuspid valves, on the 20th day. Therefore, after the first 20 days, the heart exhibits a general anatomical conformation similar to that of adult turtles.
Collapse
Affiliation(s)
- Layla Ianca Queiroz Rocha
- Programa de Pós-graduação em Biologia de Água Doce e Pesca Interior, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
| | - Maria Fabiele da Silva Oliveira
- Programa de Pós-graduação em Biologia de Água Doce e Pesca Interior, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
| | - Lucas Castanhola Dias
- Laboratório Temático de Microscopia e Nanotecnologia, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
| | - Moacir Franco de Oliveira
- Departamento de Ciências Animais, Universidade Federal Rural do Semi-Árido, Mossoró, Rio Grande do Norte, Brazil
| | | | - Marcela Dos Santos Magalhães
- Programa de Pós-graduação em Biologia de Água Doce e Pesca Interior, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil.,Departamento de Morfologia, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
| |
Collapse
|
18
|
Magalhães MDS, Dias LC, Oliveira MFD, Sebben A, Moura CEBD. Pronephros and mesonephros characterization during the embryonic development of the giant South American river turtle,
Podocnemis expansa
(Podocnemididae: Testudines). Anat Rec (Hoboken) 2022. [DOI: 10.1002/ar.25151] [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: 12/28/2022]
Affiliation(s)
| | - Lucas Castanhola Dias
- Thematic Laboratory of Electron Microscopy and Nanotechnology Instituto Nacional de Pesquisas da Amazônia Manaus Amazonas Brazil
| | | | - Antônio Sebben
- Laboratory of Comparative Vertebrates Anatomy Universidade de Brasília Brasília Distrito Federal Brazil
| | | |
Collapse
|
19
|
Braz JKFDS, Gomes VA, Siman VA, da Matta SLP, Clebis NK, de Oliveira MF, Assis AC, Morais DB, de Moura CEB. Intertubular morphometric and ultrastructural testes analyses in mdx mice. Anim Reprod 2022; 19:e20210124. [PMID: 36313597 PMCID: PMC9613355 DOI: 10.1590/1984-3143-ar2021-0124] [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: 01/14/2022] [Accepted: 09/28/2022] [Indexed: 11/21/2022] Open
Abstract
Duchenne Muscular Dystrophy (DMD) reproductive alterations and the influence of antioxidant treatments may aid in understanding morphometry testicular quantification. In this context, the aim of the present study was to characterize the intertubular compartment (ITC) morphometry of animal testes in mdx mice supplemented with ascorbic acid (AA). Sixteen mice were used, namely the C57BL/10 (non-dystrophic) and C57BL/10Mdx (dystrophic) lineages, distributed into the following groups: Control (C60), Dystrophic (D60), Control supplemented with AA (CS60), Dystrophic supplemented with AA (DS60). A total of 200 mg/kg of AA were administered to mice for 30 days. Subsequently, the testicles were collected, weighed, and fragmented. The obtained fragments were fixed in Karnovsky's solution (pH 7.2) and embedded in historesin for morphometric and transmission electron microscopy assessments. Leydig cells were hypertrophic in the D60 group, but was reverted by AA supplementation in the DS60 group. The DS60 group also exhibited increased intertubular volume compared to the CS60 group. The ultrastructural images identified multilamellar bodies in dystrophic animals (lipid storage) and telocyte cells (transport substances) in both control and dystrophic animals. Morphometric alterations were, therefore, noted in the intertubular compartment due to Duchenne muscular dystrophy (DMD), with AA administration capable of altering Leydig cells in this condition.
Collapse
Affiliation(s)
| | - Vilessa Araújo Gomes
- Departamento de Ciências da Saúde, Universidade Federal de Campina Grande, Campina Grande, PB, Brasil
| | | | | | - Naianne Kelly Clebis
- Departamento de Morfologia, Universidade Federal do Rio Grande do Norte, Natal, RN, Brasil
| | | | - Antônio Chaves Assis
- Departamento de Cirurgia, Faculdade de Medicina Veterinária e Ciência Animal, Universidade de São Paulo, São Paulo, SP, Brasil
| | | | | |
Collapse
|
20
|
de Macêdo LB, Magalhães MDS, Dias LC, Lemos KKDA, Borges RSDM, Saraiva MVA, de Oliveira MF, de Assis AC, de Moura CEB. Morphology and immunolocalization of intertubular steroidogenic cell in mesonephros of Podocnemis expansa during gonadal differentiation. Anim Reprod 2022; 19:e20220011. [PMID: 36156880 PMCID: PMC9484262 DOI: 10.1590/1984-3143-ar2022-0011] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 08/01/2022] [Indexed: 11/21/2022] Open
Abstract
Sex steroid hormones are critical in gonadal differentiation in turtles. The gonads are not the only organs responsible for producing these hormones during this phase. Mesonephros play an important role in steroidogenesis. The present study aimed to investigate the presence of steroidogenic cells in mesonephros of Podocnemis expansa during gonadal differentiation and to evaluate their morphology and ultrastructure. Ten embryos of P. expansa were collected from 5 nests on day 36 of incubation, during spawning period on an artificial beach. Embryos were extracted from eggs by slicing the shell and euthanized. They were dissected under a stereoscopic microscope to collect the gonad-mesonephro complex, in which were fixed and subsequently processed for light microscopy, immunohistochemistry and transmission electron microscopy analysis. During histological analysis was observed mesonephros has typical morphological structure. Immunohistochemistry showed immunoreaction to aromatase in cells of intertubular space. Confirming these findings, it was possible to observe a type of intertubular cell in several regions of mesonephro, being more predominant in region close to blood vessels, distal and proximal tubules. In ultrastructural analysis these cells were characterized by having a clear, large, and rounded nucleus with evident nucleolus and cytoplasm rich in electron-dense droplets. This study demonstrated for the first time the presence of cells with morphological, immunohistochemical and ultrastructural characteristics similar to steroid-producing cells in P. expansa mesonephrons, suggesting that this organ may contribute to gonadal differentiation in this species.
Collapse
Affiliation(s)
- Luã Barbalho de Macêdo
- Departamento de Ciências Animais, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brasil
| | - Marcela dos Santos Magalhães
- Departamento de Morfologia, Universidade Federal do Amazonas, Manaus, AM, Brasil,Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brasil
| | | | | | | | | | | | - Antônio Chaves de Assis
- Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
| | | |
Collapse
|
21
|
Oliveira REMD, Attademo FLN, Sousa ACFCD, Gurgel JVDO, Magalhães MDS, Moura CEBD, Fragoso ABL, Silva FJDL, Oliveira MFD. Morphological characterization of the digestive tube of hawksbill sea turtle ( Eretmochelys imbricata) hatchlings. Microsc Microanal 2022; 28:1-12. [PMID: 36062377 DOI: 10.1017/s143192762201234x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Morphological studies concerning the digestive system can further information on animal diets, thus aiding in the understanding of feeding behavior. Given the scarcity of information on sea turtle digestive system morphology, the aim of the present study was to describe the digestive tube (DT) morphology of Eretmochelys imbricata hatchlings to further understand the diet of these individuals in the wild. DT samples from 10 stillborn turtles (undefined sex) were analyzed at the macro and microscopic levels. The esophagus, stomach, small intestine (SI), and large intestine (LI) are described. Histologically, the DT is formed by four tunics, the mucosa, submucosa, muscular, and adventitia or serosa. The esophagus is lined by keratinized stratified squamous epithelium, while the remainder of the DT is lined by a simple columnar epithelium. The esophagus mucosa is marked by conical, pointed papillae. The stomach comprises three regions, the cardiac, fundic, and pyloric and is covered by neutral mucous granular cells. The intestinal mucosa presents absorptive cells with microvilli, neutral and acidic goblet cells, and mucosa-associated lymphoid tissue. The SI is significantly longer than the LI (p value = 0.006841). These morphological findings are strong indications of adaptations to a carnivorous diet in this hawksbill turtle age group.
Collapse
Affiliation(s)
- Radan Elvis Matias de Oliveira
- Postgraduate Program in Animal Science, Federal University of the Semi-Arid Region, Mossoró, Rio Grande do Norte 59625-900, Brazil
- Center for Environmental Studies and Monitoring - CEMAM, Areia Branca, Rio Grande do Norte 59655-000, Brazil
- Cetáceos da Costa Branca Project, University of the State of Rio Grande do Norte - PCCB-UERN, Mossoró, Rio Grande do Norte 59610-210, Brazil
| | | | | | - João Vitor de Oliveira Gurgel
- Department of Animal Sciences, Federal University of the Semi-Arid Region, Mossoró, Rio Grande do Norte 59625-900, Brazil
| | | | - Carlos Eduardo Bezerra de Moura
- Postgraduate Program in Animal Science, Federal University of the Semi-Arid Region, Mossoró, Rio Grande do Norte 59625-900, Brazil
| | - Ana Bernadete Lima Fragoso
- Center for Environmental Studies and Monitoring - CEMAM, Areia Branca, Rio Grande do Norte 59655-000, Brazil
- Cetáceos da Costa Branca Project, University of the State of Rio Grande do Norte - PCCB-UERN, Mossoró, Rio Grande do Norte 59610-210, Brazil
| | - Flávio José de Lima Silva
- Center for Environmental Studies and Monitoring - CEMAM, Areia Branca, Rio Grande do Norte 59655-000, Brazil
- Cetáceos da Costa Branca Project, University of the State of Rio Grande do Norte - PCCB-UERN, Mossoró, Rio Grande do Norte 59610-210, Brazil
- Doctoral Program in Development and Environment (PRODEMA), Federal University of Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte 59064-741, Brazil
| | - Moacir Franco de Oliveira
- Postgraduate Program in Animal Science, Federal University of the Semi-Arid Region, Mossoró, Rio Grande do Norte 59625-900, Brazil
| |
Collapse
|
22
|
Tomiate AN, Barbosa GK, Reginato GDS, Camargo PO, Oliveira MFD, Watanabe IS, Ciena AP. Structural and Ultrastructural Characteristics of the Spix's Yellow-Toothed Cavy ( Galea spixii, Wagler, 1831) Tongue. Microsc Microanal 2022; 28:1-8. [PMID: 35659819 DOI: 10.1017/s1431927622000861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The tongue is a fundamental organ in feeding, vocalization, and grooming. It is characterized by evolutionary adaptations reflected by diet, habitat, and function. Rodents are a very diverse mammalian order and the tongue's morphology varies in size, form, and presence of papillae. This work aimed to describe the morphological and ultrastructural aspects of the tongue of Spix's yellow-toothed cavy (Galea spixii, Wagler, 1831). Tongues of Spix's yellow-toothed cavies were analyzed with light microscopy, scanning, and transmission electron microscopy. The results showed that the tongue was divided into apex, body, and root. There were different types of papillae, such as vallate, foliate, laterally placed fungiform, fungiform, filiform, and robust filiform. The epithelium was organized into layers, including keratinized, granulous, spinous, and basal, below were lamina propria, and musculature, which evolved mucous and serous gland clusters. The tongue of Spix's yellow-toothed cavy was structurally and ultrastructurally similar to other rodents and had papillae with similar morphologies to other Caviidae species. However, the presence of robust filiform papillary lines and laterally placed fungiform papillae showed the main differences from other species. This was the first description of the tongue of Spix's yellow-toothed cavy.
Collapse
Affiliation(s)
- André Neri Tomiate
- Laboratory of Morphology, Institute of Biosciences, São Paulo State University (UNESP), Rio Claro, São Paulo, Brazil
| | - Gabriela Klein Barbosa
- Laboratory of Morphology, Institute of Biosciences, São Paulo State University (UNESP), Rio Claro, São Paulo, Brazil
| | - Gabriela de Souza Reginato
- Department of Physiological Sciences, Center of Biological Sciences, State University of Londrina, Londrina, Paraná, Brazil
| | - Paula Oliveira Camargo
- Laboratory of Morphology, Institute of Biosciences, São Paulo State University (UNESP), Rio Claro, São Paulo, Brazil
| | | | - Ii-Sei Watanabe
- Laboratory of Morphology, Institute of Biosciences, São Paulo State University (UNESP), Rio Claro, São Paulo, Brazil
- Department of Anatomy, Institute of Biomedical Sciences III (ICB III), University of São Paulo (USP), São Paulo, Brazil
| | - Adriano Polican Ciena
- Laboratory of Morphology, Institute of Biosciences, São Paulo State University (UNESP), Rio Claro, São Paulo, Brazil
| |
Collapse
|
23
|
de Oliveira Gurgel JV, de Sousa ACFC, de Oliveira REM, Tertulino MD, Lopes IRG, Antunes JMADP, Diniz JARA, de Moura CEB, de Oliveira MF. Collateral aortic branches in the collared peccary (Pecari tajacu Linnaeus, 1758). Anat Histol Embryol 2022; 51:492-500. [PMID: 35637627 DOI: 10.1111/ahe.12820] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/27/2022] [Accepted: 05/07/2022] [Indexed: 11/28/2022]
Abstract
The determination of arterial vascular distribution patterns can contribute to more detailed knowledge on arterial systems. In this context, the aim of the present study was to describe the collateral aortic branches in the collared peccary, aiming to define a standard model for this species, providing information through comparative anatomy for analysis of some evolutionary aspects of the order Artiodactyla. Ten young male animals were employed. The vascular system was washed with a saline solution and then perfused with Neoprene 450 latex coloured with red or yellow pigment, followed by collateral aorta branch dissections and analyses. The contrasted digital radiography technique was applied to two animals, which were initially perfused with a barium sulphate solution (1 g/ml) and Neoprene 450 latex at a 1:3 ratio, and subsequently, the digital radiographic examination was performed. The aortic arch of the collared peccary emitted the brachiocephalic trunk and the left subclavian artery, while eight symmetric pairs of dorsal intercostal arteries originated from the thoracic aorta. The abdominal aorta, in turn, exhibited the celiac, cranial mesenteric, renal, caudal mesenteric, testicular, external iliac, internal iliac and sacral arteries as the collateral branches in all studied animals. Therefore, no relevant variations were observed regarding the arrangement of the arterial distribution of the aorta, thus suggesting a static standard model in the collared peccary.
Collapse
Affiliation(s)
- João Vitor de Oliveira Gurgel
- Applied Animal Morphophysiology Laboratory-LABMORFA, Department of Animal Sciences, Federal University of the Semi-Arid Region-UFERSA, Mossoró, Brazil
| | - Ana Caroline Freitas Caetano de Sousa
- Applied Animal Morphophysiology Laboratory-LABMORFA, Department of Animal Sciences, Federal University of the Semi-Arid Region-UFERSA, Mossoró, Brazil
| | - Radan Elvis Matias de Oliveira
- Applied Animal Morphophysiology Laboratory-LABMORFA, Department of Animal Sciences, Federal University of the Semi-Arid Region-UFERSA, Mossoró, Brazil.,Postgraduate Program in Animal Science-PPGCA, Federal University of the Semi-Arid Region-UFERSA, Mossoró, Brazil
| | - Moisés Dantas Tertulino
- Applied Animal Morphophysiology Laboratory-LABMORFA, Department of Animal Sciences, Federal University of the Semi-Arid Region-UFERSA, Mossoró, Brazil
| | - Igor Renno Guimarães Lopes
- Applied Animal Morphophysiology Laboratory-LABMORFA, Department of Animal Sciences, Federal University of the Semi-Arid Region-UFERSA, Mossoró, Brazil.,Postgraduate Program in Animal Science-PPGCA, Federal University of the Semi-Arid Region-UFERSA, Mossoró, Brazil
| | | | - João Augusto Rodrigues Alves Diniz
- Applied Animal Morphophysiology Laboratory-LABMORFA, Department of Animal Sciences, Federal University of the Semi-Arid Region-UFERSA, Mossoró, Brazil.,Postgraduate Program in Animal Science-PPGCA, Federal University of the Semi-Arid Region-UFERSA, Mossoró, Brazil
| | - Carlos Eduardo Bezerra de Moura
- Applied Animal Morphophysiology Laboratory-LABMORFA, Department of Animal Sciences, Federal University of the Semi-Arid Region-UFERSA, Mossoró, Brazil.,Postgraduate Program in Animal Science-PPGCA, Federal University of the Semi-Arid Region-UFERSA, Mossoró, Brazil
| | - Moacir Franco de Oliveira
- Applied Animal Morphophysiology Laboratory-LABMORFA, Department of Animal Sciences, Federal University of the Semi-Arid Region-UFERSA, Mossoró, Brazil.,Postgraduate Program in Animal Science-PPGCA, Federal University of the Semi-Arid Region-UFERSA, Mossoró, Brazil
| |
Collapse
|
24
|
Dantas MRT, Luz NRN, Bezerra LGP, Moreira SSJ, de Oliveira MF, Silva AR. Evaluation of sperm membrane functionality during epididymal transit in red-rumped agouti (Dasyprocta leporina). Reprod Domest Anim 2022; 57:912-918. [PMID: 35500154 DOI: 10.1111/rda.14140] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 04/29/2022] [Indexed: 11/28/2022]
Abstract
We studied the sperm membrane functionality through the epididymal transit by comparing different hypoosmotic solutions and verifying possible associations among osmotic response and functional parameters of sperm in red-rumped agouti (Dasyprocta leporina). For this purpose, epidydimal sperm from six sexually mature male agoutis were collected via flotation. Then, analyses of sperm parameters and hypoosmotic swelling test using different hypoosmotic solutions (0 mOsm/l, 50 mOsm/l, and 200 mOsm/l) in different regions of the epididymis (caput, corpus, and cauda) were performed. There was an increase (P < 0.05) in the values for sperm concentration, total number of sperm recovered, total and progressive motility, average path velocity, straightline velocity, curvilinear velocity, rapid and medium subpopulations following the caput-corpus-cauda direction. Regardless the hypoosmotic solution, agouti sperm membrane presented similar functional integrity in all the epididymal regions. Moreover, the highest (P < 0.05) osmotic responses were reached at the use of 50 mOsm/l solution in comparison to 0 mOsm/l and 200 mOsm/l for all the regions. Significant correlations among osmotic response and some sperm kinetic parameters were especially observed in epidydimal caput, while no correlations were found in the region of the cauda. In summary, red-rumped agouti sperm present similar membrane functionality during epidydimal transit, but there are evident correlations among such functionality and sperm kinetic parameters, especially at the caput region. Moreover, we indicate the use of a 50 mOsm/l hypoosmotic solution for the analysis of this parameter through the hypoosmotic swelling test.
Collapse
Affiliation(s)
- Maiko Roberto Tavares Dantas
- Laboratory on Animal Germplasm Conservation, Universidade Federal Rural do Semi-Árido - UFERSA, BR 110, Km 47, 59625-900, Mossoró, RN, Brazil
| | - Nayra Rachel Nascimento Luz
- Laboratory on Animal Germplasm Conservation, Universidade Federal Rural do Semi-Árido - UFERSA, BR 110, Km 47, 59625-900, Mossoró, RN, Brazil
| | - Luana Grasiele Pereira Bezerra
- Laboratory on Animal Germplasm Conservation, Universidade Federal Rural do Semi-Árido - UFERSA, BR 110, Km 47, 59625-900, Mossoró, RN, Brazil
| | - Samara Sandy Jerônimo Moreira
- Laboratory on Animal Germplasm Conservation, Universidade Federal Rural do Semi-Árido - UFERSA, BR 110, Km 47, 59625-900, Mossoró, RN, Brazil
| | - Moacir Franco de Oliveira
- Department of Animal Sciences, Universidade Federal Rural do Semi-Árido - UFERSA, Km 47, 59625-900, Mossoró, RN, Brazil
| | - Alexandre Rodrigues Silva
- Laboratory on Animal Germplasm Conservation, Universidade Federal Rural do Semi-Árido - UFERSA, BR 110, Km 47, 59625-900, Mossoró, RN, Brazil
| |
Collapse
|
25
|
Silva FS, de Souza KSC, Galdino OA, de Moraes MV, Ishikawa U, Medeiros MA, Lima JPMS, de Paula Medeiros KC, da Silva Farias NB, de Araújo Júnior RF, de Rezende AA, Abreu BJ, de Oliveira MF. Hyperbaric oxygen therapy mitigates left ventricular remodeling, upregulates MMP-2 and VEGF, and inhibits the induction of MMP-9, TGF-β1, and TNF-α in streptozotocin-induced diabetic rat heart. Life Sci 2022; 295:120393. [PMID: 35167880 DOI: 10.1016/j.lfs.2022.120393] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 02/02/2022] [Accepted: 02/06/2022] [Indexed: 11/17/2022]
Abstract
AIMS Hyperbaric oxygen (HBO) therapy has been widely used for the adjunctive treatment of diabetic wounds, and is currently known to influence left ventricular (LV) function. However, morphological and molecular repercussions of the HBO in the diabetic myocardium remain to be described. We aimed to investigate whether HBO therapy would mitigate adverse LV remodeling caused by streptozotocin (STZ)-induced diabetes. MAIN METHODS Sixty-day-old Male Wistar rats were divided into four groups: Control (n = 8), HBO (n = 7), STZ (n = 10), and STZ + HBO (n = 8). Diabetes was induced by a single STZ injection (60 mg/kg, i.p.). HBO treatment (100% oxygen at 2.5 atmospheres absolute, 60 min/day, 5 days/week) lasted for 5 weeks. LV morphology was evaluated using histomorphometry. Gene expression analyzes were performed for LV collagens I (Col1a1) and III (Col3a1), matrix metalloproteinases 2 (Mmp2) and 9 (Mmp9), and transforming growth factor-β1 (Tgfb1). The Immunoexpression of cardiac tumor necrosis factor-α (TNF-α) and vascular endothelial growth factor (VEGF) were also quantified. KEY FINDINGS HBO therapy prevented LV concentric remodeling, heterogeneous myocyte hypertrophy, and fibrosis in diabetic rats associated with attenuation of leukocyte infiltration. HBO therapy also increased Mmp2 gene expression, and inhibited the induction of Tgfb1 and Mmp9 mRNAs caused by diabetes, and normalized TNF-α and VEGF protein expression. SIGNIFICANCE HBO therapy had protective effects for the LV structure in STZ-diabetic rats and ameliorated expression levels of genes involved in cardiac collagen turnover, as well as pro-inflammatory and pro-angiogenic signaling.
Collapse
Affiliation(s)
- Flávio Santos Silva
- Department of Health Sciences, Federal Rural University of the Semi-Arid, Mossoró, Brazil.
| | | | - Ony Araujo Galdino
- Department of Clinical and Toxicological Analysis, Federal University of Rio Grande do Norte, Natal, Brazil
| | | | - Uta Ishikawa
- Department of Morphology, Federal University of Rio Grande do Norte, Natal, Brazil
| | | | | | | | | | | | - Adriana Augusto de Rezende
- Department of Clinical and Toxicological Analysis, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Bento João Abreu
- Department of Morphology, Federal University of Rio Grande do Norte, Natal, Brazil
| | | |
Collapse
|
26
|
da Silva FS, Aquino de Souza NCS, de Moraes MV, Abreu BJ, de Oliveira MF. CmyoSize: An ImageJ macro for automated analysis of cardiomyocyte size in images of routine histology staining. Ann Anat 2022; 241:151892. [DOI: 10.1016/j.aanat.2022.151892] [Citation(s) in RCA: 3] [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: 10/28/2021] [Revised: 12/06/2021] [Accepted: 12/23/2021] [Indexed: 12/17/2022]
|
27
|
Santos MVDO, Silva HVR, Bezerra LGP, Oliveira LRMD, Oliveira MFD, Alves ND, Silva LDMD, Silva AR, Pereira AF. Heterologous in vitro fertilization and embryo production for assessment of jaguar (Panthera onca Linnaeus, 1758) frozen-thawed semen in different extenders. Anim Reprod 2022; 19:e20210093. [PMID: 35371300 PMCID: PMC8958878 DOI: 10.1590/1984-3143-ar2021-0093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 09/13/2021] [Accepted: 02/22/2022] [Indexed: 11/22/2022] Open
Abstract
Heterologous in vitro fertilization (IVF) is an important tool for assessing fertility of endangered mammals such as the jaguar, considering difficult access to females for artificial insemination and to obtain homologous oocytes. We aimed to evaluate the fertility of jaguar sperm cryopreserved with different extenders, using domestic cat oocytes to assess the development of hybrid embryos. Semen from four captive jaguars was obtained by electroejaculation. Samples were cryopreserved in powdered coconut water (ACP-117c) or Tris extender containing 20% egg yolk and 6% glycerol. Thawed spermatozoa were resuspended (2.0 × 106 spermatozoa/mL) in IVF medium and co-incubated with cat oocytes matured in vitro for 18 h. Presumptive zygotes were cultured for 7 days. After 48 h, cleavage rate was evaluated, and non-cleaved structures were stained for IVF evaluation. On days 5 and 7, the rate of morula and blastocyst formation was assessed. Data were analyzed using the Fisher exact test (p < 0.05). No difference was observed between ACP-117c and Tris extenders, respectively, for oocytes with 2nd polar body (2/51, 3.9 ± 2.9% vs. 2/56, 3.6 ± 3.1%), pronuclear structures (5/51, 9.8 ± 4.7% vs. 8/56, 14.3 ± 8.0%), and total IVF rates (7/36, 19.4 ± 5.0% vs. 10/37, 27.0 ± 13.8%). All the samples fertilized the oocytes, with 22.9 ± 3.2% (16/70) and 16.7 ± 3.6% (12/72) cleavage of mature oocytes for ACP-117c and Tris extenders, respectively. Morula rates of 4.3 ± 2.3% (3/70) and 5.6 ± 2.2% (4/72) were observed for ACP-117c and Tris, respectively. Only the Tris extender demonstrated blastocyst production (2/12, 16.7 ± 1.5% blastocyst/cleavage). We demonstrated that jaguar ejaculates cryopreserved using ACP-117c and Tris were suitable for IVF techniques, with blastocyst production by ejaculates cryopreserved in Tris. This is a first report of embryos produced in vitro using jaguar sperm and domestic cat oocytes through IVF.
Collapse
|
28
|
Arroyo MAM, Santos PRDS, de Oliveira MF, de Assis AC. Prolonged use of letrozole causes morphological changes on gonads in Galea spixii. Anim Reprod 2021; 18:e20200029. [PMID: 34306212 PMCID: PMC8291776 DOI: 10.1590/1984-3143-ar2020-0029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 10/20/2020] [Accepted: 06/01/2021] [Indexed: 11/22/2022] Open
Abstract
Letrozole is used as a therapeutic agent in reproductive disorders caused by high estrogen levels. Letrozole inhibits cytochrome P450 aromatase and reduces estrogen levels. However, the effects of long-term use on reproductive traits are unknown. The aim of this study was to evaluate the prolonged use of letrozole in the gonads of rodents (Spix's yellow-toothed cavy; Galea spixii). Forty-eight rodents (24 males and 24 females) were randomly divided into the treated and control groups. Letrozole administration started at 15 days of age and continued weekly until 30, 45, 90, and 120 days of age. The body, testis, and ovary weights were analyzed, as well as the morphological progression of spermatogenesis and folliculogenesis. Macroscopically, body weight gain and gonads weight were increased in the letrozole group. Microscopically, the ovaries of treated females showed stratified epithelium and a cellular disorder of the tunica albuginea. In the testes of treated males, the development of seminiferous tubules was delayed and sperm was absent. The collective findings indicate that the prolonged use of letrozole alters secondary sexual characteristics, and causes weight gain, reproductive changes, and male infertility.
Collapse
Affiliation(s)
- Maria Angelica Machado Arroyo
- Departamento de Cirurgia, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Paulo Ramos da Silva Santos
- Departamento de Cirurgia, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
| | | | - Antônio Chaves de Assis
- Departamento de Cirurgia, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
| |
Collapse
|
29
|
Lira GPDO, Borges AA, Nascimento MBD, Aquino LVCD, Moura LFDMP, Silva HVR, Ribeiro LR, Oliveira MFD, Pereira AF. Effects of somatic tissue cryopreservation on puma (Puma concolor L, 1771) tissue integrity and cell preservation after in vitro culture. Cryobiology 2021; 101:52-60. [PMID: 34118241 DOI: 10.1016/j.cryobiol.2021.06.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 03/28/2021] [Revised: 06/07/2021] [Accepted: 06/08/2021] [Indexed: 11/30/2022]
Abstract
Somatic resource banks play a crucial role in the conservation of genetic diversity, allowing for the preservation of biological samples from different populations. Puma somatic cells can be recovered from these banks and used in assisted techniques toward enhancing their multiplication and conservation. In response to the population reduction of this ecologically importance species, we aimed to evaluate the capacity of cryopreservation of somatic tissues on the maintenance of the integrity and quality of the cells recovered after culture, with the aim of establishing a somatic tissue bank that will allow for the safeguarding of a wide genetic sampling of pumas. Cryopreservation increased the thickness of the corneum layer in the tissues, and the number of perinuclear halos and empty gaps. Nevertheless, cryopreservation was able to maintain normal fibroblast patterns, even showing an increase in the percentage of collagen fibers. Cryopreservation maintained the proliferative potential of the tissues and the parameters evaluated during in vitro culture, mainly regarding the viability, proliferative activity, and apoptosis levels. Nevertheless, cells from cryopreserved tissues showed decreased metabolism and mitochondrial membrane potential when compared to cells from non-cryopreserved tissues. In summary, we demonstrated for the first time that puma somatic tissues subjected to cryopreservation are viable and maintain tissue integrity, featuring minimal changes after warming. Although viable somatic cells are obtained from these tissues, they undergo alterations in their metabolism and mitochondrial membrane potential. Improvements in the conservation conditions of somatic samples are needed to increase the quality of somatic tissue banks in this species.
Collapse
Affiliation(s)
| | - Alana Azevedo Borges
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid (UFERSA), Mossoro, RN, Brazil
| | | | | | | | | | | | | | | |
Collapse
|
30
|
Miglino MA, de Sá Schiavo Matias G, Rigoglio NN, Borghesi J, de Castro Sasahara TH, del Portal MJI, del Portal JCI, Granado GS, Ramos SCC, de Oliveira MF, Conley AJ. The comparative aspects of hystricomorph subplacenta: potential endocrine organ. BMC ZOOL 2021; 6:16. [PMID: 37170370 PMCID: PMC10127431 DOI: 10.1186/s40850-021-00074-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 04/12/2021] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
The placenta of hystricomorph rodents, lagomorphs and some primates includes an unusual structure, termed a subplacenta, which essentially consists of trophoblastic cells located deep to the central implantation site within the area of decidualization. It has been suggested that the subplacenta is functionally important, although considerable controversy remains on the issue. In this context, our objective was to compare the architecture and structure of the subplacentas of different hystricomorph species, to investigate the possibility that it is active in hormone synthesis.
Methods
In total, the placentas of 3 capybaras (Hydrochaeris hydrochaeris), 2 pacas (Agouti paca), 5 agoutis (Dasyprocta leporina), 5 rock cavies (Kerodon rupestris) and 3 guinea pigs (Cavia porcellus) at different stages of pregnancy (early, middle and near term) were used for gross and microscopic examination. This included the preparation of latex injection casts, immunohistochemistry for steroidogenic enzymes, scanning and transmission electron microscopy. Tissue steroid concentrations were also determined.
Results
The gross morphology and microvascular arrangement of the subplacentas were similar among the hystricomorphs studied including ultra-structural verification of cytotrophoblast and syncytiotrophoblast in all species. In guinea pigs, trophoblast cells exhibited characteristics consistent with intense metabolic and secretory activity in general. However, immuno-histochemical evidence also indicated that subplacental trophoblast expressed key steroidogenic enzymes, mainly in the chorionic villus region, consistent with tissue steroid concentrations.
Conclusions
The subplacentas within placentas of hystricomorph rodent species are structurally similar and, in guinea pigs, have potential for steroid hormone secretion from, at least the early stages of pregnancy.
Collapse
|
31
|
Tomiate AN, Barbosa GK, Rocha LC, de Almeida SRY, de Oliveira MF, Watanabe IS, Ciena AP. Structural and Ultrastructural Characteristics of the Red-Rumped Agouti ( Dasyprocta leporina-Linnaeus, 1758) Palatine Epithelium. Microsc Microanal 2021; 27:1-5. [PMID: 33890560 DOI: 10.1017/s1431927621000350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The palate is a fundamental region in food swallowing and presents different adaptations in species. This research aimed to describe structural and ultrastructural characteristics of the palatine epithelium and the connective tissue cores (CTCs) of ten red-rumped agoutis (Dasyprocta leporina—Linnaeus, 1758) using macroscopic, light microscopy, scanning electron microscopy, and transmission electron microscopy. We found nine palatine ridges in the diastema and hard palate, and a smooth surface in the soft palate. Stratified squamous keratinized epithelium with projections of lamina propria and soft palate had gland clusters. Epithelial removal revealed CTCs with a conical shape with high density in the hard palate and the sides of the soft palate. Near the CTCs were nerve fibers in the hard palate, and the soft palate had muscular tissue below the gland clusters. The structural and ultrastructural characteristics enable stability of the hard palate and fixation to the soft palate sides, while the soft palate center has greater mobility thus assisting in food swallowing. We concluded that structural characteristics are similar to other mammals, although the morphology of agouti's palate differs in the amount and disposition of palatine ridges, and the conical CTC's morphology.
Collapse
Affiliation(s)
- André Neri Tomiate
- Laboratório de Anatomia - LAMAF, Instituto de Biociências, Universidade Estadual Paulista-UNESP, 13506-752, Rio Claro-SP, Brasil
| | - Gabriela Klein Barbosa
- Laboratório de Anatomia - LAMAF, Instituto de Biociências, Universidade Estadual Paulista-UNESP, 13506-752, Rio Claro-SP, Brasil
| | - Lara Caetano Rocha
- Laboratório de Anatomia - LAMAF, Instituto de Biociências, Universidade Estadual Paulista-UNESP, 13506-752, Rio Claro-SP, Brasil
| | - Sonia Regina Yokomizo de Almeida
- Departamento de Anatomia, Instituto de Ciências Biomédicas - ICBIII, Universidade de São Paulo-USP, 05508-900, São Paulo-SP, Brasil
| | - Moacir Franco de Oliveira
- Departamento de Ciências Animais, Universidade Federal do Semi-Árido, UFERSA, 59625-900, Mossoró-RN, Brasil
| | - Ii-Sei Watanabe
- Departamento de Anatomia, Instituto de Ciências Biomédicas - ICBIII, Universidade de São Paulo-USP, 05508-900, São Paulo-SP, Brasil
- Departamento de Cirurgia, Faculdade de Medicina Veterinária e Zootecnia-FMVZ, Universidade de São Paulo-USP, 05508-270, São Paulo-SP, Brasil
| | - Adriano Polican Ciena
- Laboratório de Anatomia - LAMAF, Instituto de Biociências, Universidade Estadual Paulista-UNESP, 13506-752, Rio Claro-SP, Brasil
| |
Collapse
|
32
|
Maria da Silva A, Pereira AG, Brasil AV, Macedo LB, Souza-Junior J, Bezerra de Moura CE, Pereira AF, Franco de Oliveira M, Comizzoli P, Silva AR. Influence of freezing techniques and glycerol-based cryoprotectant combinations on the survival of testicular tissues from adult collared peccaries. Theriogenology 2021; 167:111-119. [PMID: 33813051 DOI: 10.1016/j.theriogenology.2021.03.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 12/04/2020] [Revised: 03/16/2021] [Accepted: 03/16/2021] [Indexed: 01/23/2023]
Abstract
The objective of the study was to evaluate the effects of different cryopreservation techniques including glycerol-based cryoprotectant combinations on the structure and viability of testicular tissues from adult collared peccaries. Tissue biopsies (3.0 mm³) from 5 different individuals were allocated to 10 different groups: fresh control; slow freezing (SF), conventional vitrification (CV), or solid-surface vitrification (SSV); each of them using three different combinations of cryoprotectants [dimethyl sulfoxide (DMSO) + ethylene glycol (EG); DMSO + Glycerol; and EG + Glycerol]. After thawing/warming, samples were evaluated for histomorphology, viability, proliferative capacity potential, and DNA integrity. Most effective preservation of testicular histomorphology was achieved using SF and CV with DMSO + EG. However, the use of glycerol-based cryoprotectant combinations increased the occurrence of tubular cell swelling, tubular cell loss and shrinkage from the basal membrane. Cell viability was comparable among cryopreservation methods and cryoprotectant combinations. Regarding cell proliferative capacity, the use of SF with EG + Glycerol and SSV with DMSO + Glycerol impaired the conservation of spermatogonia proliferative potential compared to other treatments. Moreover, CV with DMSO + EG was better than SF with EG + Glycerol for Sertoli cell proliferation potential. Regarding DNA integrity, less damage occurred when using SF with DMSO + EG while more fragmentations were observed when using CV with EG + Glycerol or DMSO + Glycerol as well as SSV with EG + Glycerol or DMSO + Glycerol. In sum, SF and CV appeared to be the most suitable methods for the cryopreservation of adult peccary testicular tissues. Additionally, the use of glycerol-based cryoprotectant combinations did not improve testicular tissues preservation with DMSO + EG being the most efficient option.
Collapse
Affiliation(s)
- Andréia Maria da Silva
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid - UFERSA, Mossoró, RN, Brazil
| | - Ana Gloria Pereira
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid - UFERSA, Mossoró, RN, Brazil
| | - Andreza Vieira Brasil
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid - UFERSA, Mossoró, RN, Brazil
| | | | - João Souza-Junior
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid - UFERSA, Mossoró, RN, Brazil
| | | | | | | | - Pierre Comizzoli
- Smithsonian Conservation Biology Institute, National Zoological Park, Veterinary Hospital, Washington, DC, USA
| | - Alexandre Rodrigues Silva
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid - UFERSA, Mossoró, RN, Brazil.
| |
Collapse
|
33
|
Oliveira REMD, Rossi S, Attademo FLN, Santoro TA, Revorêdo RÂ, Farias DSDD, Lima MA, Batista JS, Silva FJDL, Gavilan SA, Oliveira MFD. Colocolic Intussusception Associated with Octangium sp. (Digenea: Microscaphidiidae) in a Green Sea Turtle Chelonia mydas. J Aquat Anim Health 2021; 33:17-23. [PMID: 33713491 DOI: 10.1002/aah.10115] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 09/30/2020] [Indexed: 06/12/2023]
Abstract
Reports of intussusception in sea turtles are generally linked to marine debris ingestion; therefore, only a few cases of the disease are associated with parasitic infestations. The objective of this study was to describe the necropsy findings of the first reported case of colocolic intussusception in a green sea turtle Chelonia mydas, associated with the helminth Octangium sp. A juvenile female green sea turtle, which was registered and rescued by the team from the Cetaceans Project of Costa Branca, State University of Rio Grande do Norte, was examined. The animal died 1 d after being treated and was immediately submitted for necropsy. Our findings indicated that parasitic infestation by Octangium sp. in the green sea turtle caused intussusception and consequently led to the animal's death. Early diagnosis and surgical correction are fundamental for a good prognosis and, consequently, for successful rehabilitation of marine species.
Collapse
Affiliation(s)
- Radan Elvis Matias de Oliveira
- Applied Animal Morphophysiology Laboratory, Postgraduate Program in Animal Science, Federal Rural University do Semi-Árido, Mossoró, Rio Grande do Norte, 59625-900, Brazil
- Costa Branca Cetacean Project, State University of Rio Grande do Norte, Mossoró, Rio Grande do Norte, 59610-210, Brazil
- Laboratory of Vertebrate Morphophysiology, Department of Morphology, Biosciences Centre, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, 59064-741, Brazil
- Center of Surveys and Environmental Monitoring, Natal, Rio Grande do Norte, 59082-260, Brazil
| | - Silmara Rossi
- Laboratory of Vertebrate Morphophysiology, Department of Morphology, Biosciences Centre, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, 59064-741, Brazil
| | - Fernanda Löffler Niemeyer Attademo
- Costa Branca Cetacean Project, State University of Rio Grande do Norte, Mossoró, Rio Grande do Norte, 59610-210, Brazil
- Center of Surveys and Environmental Monitoring, Natal, Rio Grande do Norte, 59082-260, Brazil
| | - Thiago Almeida Santoro
- Costa Branca Cetacean Project, State University of Rio Grande do Norte, Mossoró, Rio Grande do Norte, 59610-210, Brazil
- Laboratory of Vertebrate Morphophysiology, Department of Morphology, Biosciences Centre, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, 59064-741, Brazil
| | - Rafael Ângelo Revorêdo
- Costa Branca Cetacean Project, State University of Rio Grande do Norte, Mossoró, Rio Grande do Norte, 59610-210, Brazil
- Laboratory of Vertebrate Morphophysiology, Department of Morphology, Biosciences Centre, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, 59064-741, Brazil
| | - Daniel Solon Dias de Farias
- Costa Branca Cetacean Project, State University of Rio Grande do Norte, Mossoró, Rio Grande do Norte, 59610-210, Brazil
- Laboratory of Vertebrate Morphophysiology, Department of Morphology, Biosciences Centre, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, 59064-741, Brazil
- Center of Surveys and Environmental Monitoring, Natal, Rio Grande do Norte, 59082-260, Brazil
| | - Mariana Almeida Lima
- Costa Branca Cetacean Project, State University of Rio Grande do Norte, Mossoró, Rio Grande do Norte, 59610-210, Brazil
- Laboratory of Vertebrate Morphophysiology, Department of Morphology, Biosciences Centre, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, 59064-741, Brazil
- Center of Surveys and Environmental Monitoring, Natal, Rio Grande do Norte, 59082-260, Brazil
| | - Jael Soares Batista
- Postgraduate Program in Animal Science, Federal Rural University do Semi-Árido, Mossoró, Rio Grande do Norte, 59625-900, Brazil
| | - Flávio José de Lima Silva
- Costa Branca Cetacean Project, State University of Rio Grande do Norte, Mossoró, Rio Grande do Norte, 59610-210, Brazil
- Center of Surveys and Environmental Monitoring, Natal, Rio Grande do Norte, 59082-260, Brazil
| | - Simone Almeida Gavilan
- Costa Branca Cetacean Project, State University of Rio Grande do Norte, Mossoró, Rio Grande do Norte, 59610-210, Brazil
- Laboratory of Vertebrate Morphophysiology, Department of Morphology, Biosciences Centre, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, 59064-741, Brazil
- Center of Surveys and Environmental Monitoring, Natal, Rio Grande do Norte, 59082-260, Brazil
| | - Moacir Franco de Oliveira
- Applied Animal Morphophysiology Laboratory, Postgraduate Program in Animal Science, Federal Rural University do Semi-Árido, Mossoró, Rio Grande do Norte, 59625-900, Brazil
| |
Collapse
|
34
|
Gomes VLDA, Braz JKFDS, Martins GM, Clebis NK, Oliveira MFD, Morais DB, Moura CEBD. Identification of telocytes in dystrophic mice testis. Einstein (Sao Paulo) 2021; 19:eAI5737. [PMID: 33503147 PMCID: PMC7821952 DOI: 10.31744/einstein_journal/2021ai5737] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 10/08/2020] [Indexed: 11/19/2022] Open
|
35
|
Praxedes ÉA, Silva MB, Oliveira LRMD, Viana JVDS, Silva AR, Oliveira MFD, Pereira AF. Establishment, characterization, and cryopreservation of cell lines derived from red-rumped agouti (Dasyprocta leporina Linnaeus, 1758) - A study in a wild rodent. Cryobiology 2020; 98:63-72. [PMID: 33359644 DOI: 10.1016/j.cryobiol.2020.12.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 09/29/2020] [Revised: 12/18/2020] [Accepted: 12/21/2020] [Indexed: 12/18/2022]
Abstract
Somatic cells can be used for rescuing wild mammals of ecological and economic importance, such as red-rumped agouti, through their application in advanced technologies. Thus, appropriate cell isolation, culture, and storage through cryopreservation can ensure the future safe use of these cells. We aimed to establish and evaluate the effects of culture time (second, fifth, and eighth passages) and cryopreservation on the morphology, viability, metabolism, proliferative activity, reactive oxygen species (ROS) levels, mitochondrial membrane potential (ΔΨm), and apoptosis on somatic cells derived from red-rumped agouti skin. Initially, we identified six dermal fibroblast lines by morphology, immunophenotyping, and karyotyping assays. In vitro culture after the second, fifth, and eighth passages, as well as the cryopreservation conditions used did not affect the metabolism or level of apoptosis. Nevertheless, cells in the fifth passage featured a reduction in proliferative activity and an increase in ROS levels when compared to second and eighth passage cells. Moreover, cryopreservation resulted in reduced ΔΨm when compared to non-cryopreserved cells. Additionally, cryopreserved cells showed a reduction in viability immediately after thawing; nevertheless, the viability of these cells was re-established after 11 days of in vitro culture and was similar to that of non-cryopreserved cells. In conclusion, we have shown that viable fibroblasts can be obtained from red-rumped agouti skin, featuring minimal changes after eight passages in in vitro culture systems. Additionally, adjustments to the cryopreservation protocol are necessary to reduce cellular oxidative stress caused by low temperatures.
Collapse
Affiliation(s)
- Érika Almeida Praxedes
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid (UFERSA), Mossoro, RN, Brazil
| | - Maria Bárbara Silva
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid (UFERSA), Mossoro, RN, Brazil
| | | | - João Vitor da Silva Viana
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid (UFERSA), Mossoro, RN, Brazil
| | | | | | | |
Collapse
|
36
|
Costa HDA, Vaz RGMV, Silva MCD, Rodrigues KF, Sousa LF, Bezerra LDS, Ribeiro MDC, Barbosa AFC, Almeida JSD, Oliveira MFD. Performance and Meat Quality of Broiler Chickens Reared on two Different Litter Materials and at two Stocking Densities. Br Poult Sci 2020; 62:396-403. [PMID: 33325739 DOI: 10.1080/00071668.2020.1864810] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
1. This study evaluated the performance and meat quality of broiler chickens reared on two litter materials and at two stocking densities.2. The chicks were allotted in a completely randomised design in a 2 × 2 factorial arrangement with two litter materials (wood shavings or rice straw) and two stocking densities (24 or 30 kg/m2), with six replicates per treatment. Broiler performance, carcase yield, prime cuts, blood plasma proteins, the enzymes alanine aminotransferase and aspartate aminotransferase, edible viscera, immune organs, intestine weight and length, abdominal fat, breast meat colour, pH, weight loss by defrosting, weight loss by cooking and shear force were evaluated.3. The density of 24 kg/m2 positively influenced feed consumption and weight gain. The type of litter had a positive influence on feed conversion, with a lower value for birds raised on wood shavings.4. Breast production was improved in birds reared at a density of 24 kg/m2 when compared to birds reared at a density of 30 kg/m2. The rice straw bedding negatively affected abdominal fat (resulting in higher percentages) when compared to birds reared on wood shavings.5. The types of litter affected the enzyme aspartate aminotransferase in birds raised on wood shavings, although these values were not increased to the point of influence on the physiological functions of broilers.6. The colour of the breast meat, pH, temperature, weight loss after thawing or cooking, shear force, cholesterol, triglycerides, albumin, total proteins, glucose or alanine aminotransferase content were not influenced by the stocking densities or bedding.7. The use of wood shavings as poultry bedding at a stocking density of 24 kg/m2resulted in the best performance for broiler chickens at 42 days of age.
Collapse
Affiliation(s)
- H D A Costa
- Tropical Animal Science Graduate Program the Department De Zootecnia, Federal University of Tocantins, UFT, Araguaína, Brasil
| | - R G M V Vaz
- Department De Zootecnia, Escola De Medicina Veterinária E Zootecnia, Federal University of Tocantins, UFT, Araguaína, Brasil
| | - M C D Silva
- Department of Animal Science, Federal Rural University of the Amazon, Paragominas, Brazil
| | - K F Rodrigues
- Department De Zootecnia, Escola De Medicina Veterinária E Zootecnia, Federal University of Tocantins, UFT, Araguaína, Brasil
| | - L F Sousa
- Department De Zootecnia, Escola De Medicina Veterinária E Zootecnia, Federal University of Tocantins, UFT, Araguaína, Brasil
| | - L D S Bezerra
- Tropical Animal Science Graduate Program the Department De Zootecnia, Federal University of Tocantins, UFT, Araguaína, Brasil
| | - M D C Ribeiro
- Tropical Animal Science the Department De Zootecnia, Federal University of Tocantins, UFT, Araguaína, Brasil
| | - A F C Barbosa
- Tropical Animal Science the Department De Zootecnia, Federal University of Tocantins, UFT, Araguaína, Brasil
| | - J S D Almeida
- Tropical Animal Science the Department De Zootecnia, Federal University of Tocantins, UFT, Araguaína, Brasil
| | - M F D Oliveira
- Tropical Animal Science Graduate Program the Department De Zootecnia, Federal University of Tocantins, UFT, Araguaína, Brasil
| |
Collapse
|
37
|
Borges RSDM, Medeiros ADM, Silva JGD, Paiva RRLT, Costa HDS, Oliveira MFD, Moura CEBD. Morphometry of the heart of greater rhea (Rhea americana americana, Linnaeus, 1758). Anat Histol Embryol 2020; 50:345-349. [PMID: 33236380 DOI: 10.1111/ahe.12635] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 10/06/2020] [Accepted: 11/05/2020] [Indexed: 11/27/2022]
Abstract
Heart diseases in birds are frequent and generate significant production disorders. Morphometry is a valuable tool to provide fundamental information about heart conditions. Few studies have addressed morphological aspects of the heart of ratite birds, such as the Greater rhea. The present study aimed to analyse rhea heart morphometry, comparing young and adult subjects, in order to provide relevant information for the diagnosis of heart disease in this species. Hearts of young (n = 10) and adult (n = 10) female rheas were used in this research. Heart length and width and sternum length were measured using a caliper. Heart length and width and sternum length in adults were approximately three times greater than in young individuals. The left ventricular wall (LVW) was thicker than the right ventricular wall (RVW) at all ages, and the RVW was thicker in adults when compared to young subjects. The basal and middle RVW regions thicken with advancing age, and the thickness of the interventricular septum (ISW) occupies an intermediate position between the LVW and RVW. In general, an increase in rhea heart thickness and size relative to age is observed. The morphometric variations between young and adult rhea hearts observed in the present study may serve as a comparative subsidy for the diagnosis of cardiac abnormalities observed in this species.
Collapse
Affiliation(s)
- Ryshely Sonaly De Moura Borges
- Research and Innovation Group on Morphophysiological Studies, Department of Animal Science, Universidade Federal Rural do Semiárido, Mossoró, Brazil
| | - Andre De Macedo Medeiros
- Research and Innovation Group on Morphophysiological Studies, Department of Animal Science, Universidade Federal Rural do Semiárido, Mossoró, Brazil
| | - Joelma Gomes da Silva
- Research and Innovation Group on Morphophysiological Studies, Department of Animal Science, Universidade Federal Rural do Semiárido, Mossoró, Brazil
| | - Ruana Rafaela Lira Torquato Paiva
- Research and Innovation Group on Morphophysiological Studies, Department of Animal Science, Universidade Federal Rural do Semiárido, Mossoró, Brazil
| | - Herson da Silva Costa
- Research and Innovation Group on Morphophysiological Studies, Department of Animal Science, Universidade Federal Rural do Semiárido, Mossoró, Brazil
| | - Moacir Franco de Oliveira
- Research and Innovation Group on Morphophysiological Studies, Department of Animal Science, Universidade Federal Rural do Semiárido, Mossoró, Brazil
| | - Carlos Eduardo Bezerra de Moura
- Research and Innovation Group on Morphophysiological Studies, Department of Animal Science, Universidade Federal Rural do Semiárido, Mossoró, Brazil
| |
Collapse
|
38
|
Oliveira REMD, Costa HDS, Araújo Júnior HND, Lopes IRG, Lopes PMA, Gurgel JVDO, de Oliveira MF. Collateral arteries of the aortic arch of the red-rumped agouti (Dasyprocta leporina Linnaeus, 1758). Anat Histol Embryol 2020; 49:417-424. [PMID: 32112454 DOI: 10.1111/ahe.12544] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 01/05/2020] [Revised: 01/29/2020] [Accepted: 02/05/2020] [Indexed: 11/29/2022]
Abstract
Detailed knowledge of the arterial system is an important prerequisite when interpreting experimental data in research, as well as in the diagnosis of cardiovascular disease using imaging techniques such as Doppler echocardiography and contrast radiography. Thus, considering the importance of the aortic arrangement, the objective of this study was to describe the collateral arteries of the aortic arch of agoutis in order to establish the standard model, and therefore contribute to studies involving research related to heart disease, and produce information for a more accurate diagnosis in complementary imaging examinations. In this study, 14 adult animals were used, comprising eight males and six females. The vascular system was washed with 0.9% aqueous saline solution and perfused with Neoprene 450 latex coloured with yellow or red pigment, which was subsequently dissected and analysed. One male animal was used for the digital contrast radiography technique perfused with a liquid barium sulphate solution (Bariogel® ) (1 g/ml) and Neoprene 450 latex, both diluted 1/3. The aortic arch of the agouti presented with only the brachiocephalic trunk as collateral branch in all the animals studied. Thus, agouti falls into type 1 for mammalian aortic arch vascular arrangements.
Collapse
Affiliation(s)
- Radan Elvis Matias de Oliveira
- Department of Animal Sciences, Applied Animal Morphophysiology Laboratory - LABMORFA, Federal Rural University of Semi-Árido - UFERSA, Mossoró, Brazil.,Department of Morphology - DMOR, Bioscience Center - CB, Federal University of Rio Grande do Norte - UFRN, Natal, Brazil
| | - Herson da Silva Costa
- Department of Animal Sciences, Applied Animal Morphophysiology Laboratory - LABMORFA, Federal Rural University of Semi-Árido - UFERSA, Mossoró, Brazil
| | - Hélio Noberto de Araújo Júnior
- Department of Animal Sciences, Applied Animal Morphophysiology Laboratory - LABMORFA, Federal Rural University of Semi-Árido - UFERSA, Mossoró, Brazil
| | - Igor Renno Guimarães Lopes
- Department of Animal Sciences, Applied Animal Morphophysiology Laboratory - LABMORFA, Federal Rural University of Semi-Árido - UFERSA, Mossoró, Brazil
| | - Paulo Mateus Alves Lopes
- Department of Animal Sciences, Applied Animal Morphophysiology Laboratory - LABMORFA, Federal Rural University of Semi-Árido - UFERSA, Mossoró, Brazil
| | - João Vitor de Oliveira Gurgel
- Department of Animal Sciences, Applied Animal Morphophysiology Laboratory - LABMORFA, Federal Rural University of Semi-Árido - UFERSA, Mossoró, Brazil
| | - Moacir Franco de Oliveira
- Department of Animal Sciences, Applied Animal Morphophysiology Laboratory - LABMORFA, Federal Rural University of Semi-Árido - UFERSA, Mossoró, Brazil
| |
Collapse
|
39
|
Costa HDS, Câmara FV, Bezerra Vinicius FF, Bezerra de Moura CE, Fernandes Pereira A, Rodrigues Silva A, Miglino MA, Franco de Oliveira M. Embryonic/Fetal Development, Placentation and Glycosaminoglycans in the Female Reproductive Tract and Placenta. ACTA SCI VET 2020. [DOI: 10.22456/1679-9216.100339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Background: Fetal attachments, placentation and embryonic development have been widely discussed in rodents such as agoutis and cavies, as well as research on glycosaminoglycans (GAGs) in rats and rabbits. Moreover, studies on buffalo, cattle and sheep are described in ruminants, and work has also been reported in sheep with GAGs in placentoma. However, further studies are needed in this regard, since there are reports of economic losses associated with reproductive failures described for cattle such as changes in the chorion and allantois, and in sheep in which changes between the transition from vitelline to allantois circulation have been discussed. Review: In relation to embryonic development, detailed studies have been described in rodents such as rats (12 days old), desert mouse (15 days old) and agoutis at 30 days. Macroscopic structures such as the cephalic region, nose, optic vesicle, cervical curvature, thoracic and pelvic limbs were observed, as well as microscopic structures such as the pituitary, lung, heart, brain cavity, liver, retina, and ossification regions. There are reports of buffalo and cattle studies in ruminants describing early embryonic development. However, the research in the case of sheep is limited, meaning there is only the ultrasound examination, such as gestational diagnosis and morphometric measurement of the embryonic vesicle. Still, studies with umbilical funicular and placental development of sheep with different gestational ages can be highlighted. Regarding extraembryonic annexes, four important structures which contribute to embryonic maintenance have been reported. These are called the chorion, amnion, allantois and yolk sac, respectively, and are responsible for originating the placenta, embryonic protection, collecting metabolic waste and early embryonic nutrition. In addition, correlating the annexes gives rise to the placentation process, which were described two models; the first is transient, called chorioviteline, and the second is called chorioallantoid, which represents the definitive model. Allied to the gestational process, the importance of glycosaminoglycans (GAGs) and proteoglycans are worth mentioning, as they are essential components of the extracellular matrix. They are related in the implantation process, tissue organization during gestation, and also in placental angiogenesis, as described in ruminants (i.e. involved in the vascular growth that accompanies the development of the placenta), which in turn causes an increase in blood flow in this organ, and constitutes a determining factor for fetal development. Conclusion: Such studies regarding the embryonic development of ruminants are still limited to sonographic description and some information is only available in the context of extraembryonic membranes. For glycosaminoglycans, chondroitin sulfate, dermatan sulfate, heparan sulfate and hyaluronic acid are identified in the reproductive tract and placenta. We intend to produce important information for the reproductive and sanitary management of ruminants with the information in this article, providing data to stimulate new studies aiming to minimize the occurrence of embryonic death and economic losses. In addition, further studies on GAGs are needed to better understand their true correlation with gestation, so they can intercede through supplementation and minimize reproductive losses.
Collapse
|
40
|
Queiroz JPAFD, Souza-Junior JBF, Oliveira VRDM, Costa LLDM, Oliveira MFD. How does Spix's yellow-toothed cavy (Galea spixii Wagler, 1831) face the thermal challenges of the Brazilian tropical dry forest? J Therm Biol 2020; 88:102525. [PMID: 32126000 DOI: 10.1016/j.jtherbio.2020.102525] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 09/01/2019] [Revised: 01/13/2020] [Accepted: 01/19/2020] [Indexed: 11/28/2022]
Abstract
The aim of this work was to investigate the thermal biology of the Spix's yellow-toothed cavy (Galea spixii) from the hot and dry environment of the Brazilian Caatinga by infrared thermography and biophysical equations. We monitored the rectal temperature, as well as the non-evaporative (radiative and convective pathways) and evaporative heat exchanges of males and females. The mean rectal temperature of females and males was 37.58 ± 0.02 and 37.47 ± 0.02 °C, respectively. We identified thermal windows by infrared thermography. The surface temperatures and the long-wave radiation heat exchanges were higher in the periocular, preocular, pinnae and vibrissae regions, in that order. The surface temperature of the periocular and preocular regions correlated positively with rectal temperature. Convective heat exchange was insignificant for thermoregulation by G. spixii. Evaporative heat loss increased when the thermal environment inhibited the radiative pathway. Females showed higher evaporative thermolysis than males at times of greater thermal challenge, suggesting a lower tolerance to heat stress. Therefore, infrared thermography identified the thermal windows, which represented the first line of defense against overheating in G. spixii. The periocular and preocular surface temperatures could be used as predictors of the thermal state of G. spixii.
Collapse
|
41
|
da Silva AM, Bezerra LGP, Praxedes ECG, Moreira SSJ, de Souza CMP, de Oliveira MF, Pereira AF, Comizzoli P, Silva AR. Combination of intracellular cryoprotectants preserves the structure and the cells proliferative capacity potential of adult collared peccary testicular tissue subjected to solid surface vitrification. Cryobiology 2019; 91:53-60. [DOI: 10.1016/j.cryobiol.2019.10.199] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 10/22/2019] [Accepted: 10/28/2019] [Indexed: 12/11/2022]
|
42
|
Borges AA, Santos MVDO, Nascimento LE, Lira GPDO, Praxedes ÉA, Oliveira MFD, Silva AR, Pereira AF. Production of collared peccary (Pecari tajacu Linnaeus, 1758) parthenogenic embryos following different oocyte chemical activation and in vitro maturation conditions. Theriogenology 2019; 142:320-327. [PMID: 31711691 DOI: 10.1016/j.theriogenology.2019.10.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 07/02/2019] [Revised: 09/13/2019] [Accepted: 10/13/2019] [Indexed: 02/09/2023]
Abstract
To optimize the protocols for assisted reproductive techniques (ARTs) in collared peccary (Pecari tajacu Linnaeus, 1758), we evaluated various conditions for oocyte in vitro maturation (IVM) and chemical activation. Initially, we assessed the IVM rates, cumulus-oocyte complex (COC) quality, and oocyte morphometry in the absence or presence of epidermal growth factor (EGF). There was no difference between the COCs matured in absence or presence of EGF for the expansion of cumulus cells (97.6% ± 1.2 vs. 100% ± 0.0), presence of first polar body (65.9% ± 1.2 vs. 70.5% ± 1.8), nuclear status in second metaphase (62.5% ± 11.6 vs. 68.4% ± 4.9), cytoplasmic maturation (100.0% ± 0.7 vs. 75.0% ± 0.7), reactive oxygen species levels (0.5 ± 0.2 vs. 0.3 ± 0.1), and mitochondrial membrane potential (1.1 ± 0.2 vs. 1.1 ± 0.1). However, the zona pellucida thickness of matured COCs was reduced in the presence of EGF. Thus, the EGF group was used for further experiments. The oocytes were artificially activated with ionomycin and four secondary activator combinations [6-dimethylaminopurine (6D), 6D and cytochalasin B (6D + CB), cycloheximide (CHX), and CHX and CB (CHX + CB)]. The effect of immature COCs based on cumulus cell layers and cytoplasm homogeneity (GI and GII or GIII COCs) on embryonic development and quality was evaluated. There was no difference in the cleavage rates among the groups of secondary activators. The cleavage rates of embryos derived from GI/GII and GIII COCs were greater than 72.2% and 25.0%, respectively. Moreover, treatment with CHX showed a reduction in the cleavage rate of embryos derived from GIII COCs when compared to the cleavage rate of embryos derived from GI/GII COCs (P < 0.05). Nevertheless, higher rates of blastocyst/total GI and GII COCs were observed in the 6D group (27.6% ± 0.3) compared to CHX group (6.9% ± 0.3). Additionally, only 6D treatment resulted in the production of embryos derived from GIII COCs (25.0% ± 0.2). The percentage of the ICM/total cell ratio was also greater in blastocysts derived from 6D (42.5% ± 19.0), 6D + CB (37.9% ± 21.9), and CHX + CB (43.8% ± 19.6) groups when compared to CHX (3.6% ± 0.1) group. Thus, the combination of ionomycin and 6D could produce collared peccary embryos by activation of both GI/GII COCs and GIII COCs. These optimized IVM conditions using EGF and chemical activation using ionomycin and 6D in collared peccaries form the first steps for establishing ARTs to conserve this species.
Collapse
Affiliation(s)
- Alana Azevedo Borges
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoro, RN, Brazil
| | | | | | | | - Érika Almeida Praxedes
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoro, RN, Brazil
| | - Moacir Franco de Oliveira
- Laboratory of Applied Animal Morphophysiology, Federal Rural University of Semi-Arid, Mossoro, RN, Brazil
| | - Alexandre Rodrigues Silva
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid, Mossoro, RN, Brazil
| | | |
Collapse
|
43
|
de Oliveira REM, Santoro GA, Freire ACDB, Attademo FLN, Lima SA, Bomfim ADC, Fragoso ABL, Silva FJDL, Gavilan SA, de Oliveira MF. Angioarchitecture of collateral arteries of the aortic arch of Antillean manatee (Trichechus manatus manatus Linnaeus, 1758). Anat Histol Embryol 2019; 49:25-30. [PMID: 31441103 DOI: 10.1111/ahe.12477] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 04/22/2019] [Revised: 07/08/2019] [Accepted: 07/18/2019] [Indexed: 11/30/2022]
Abstract
The aortic arrangement is an important structure associated with the maintenance of homeostasis. Based on this information, this study was conducted to describe the collateral arteries of the aortic arch of Antillean manatee and define the standard model for the species. Three specimens, an adult male, adult female and a male neonate, all strandings on the coast of the state of Rio Grande do Norte, Brazil, were used. The study was performed in the Laboratory of Morphophysiology of Vertebrates of the Federal University of Rio Grande do Norte, where in situ photographs were taken to demonstrate their topography. Subsequently, their hearts were removed and fixed in 10% formaldehyde and after 72 hr were dissected and analysed, obtaining schematic drawings and photographs of the vascular arrangement. The aortic arch was represented by three collateral arteries identified as the brachiocephalic trunk, left common carotid artery and left subclavian artery. This arrangement was similar to that found for other sirenians, and yet, for other mammals like hooded seal, murine, margarita island capuchin, black-handed tamarin, Mongolian gerbil and human. The morphological similarity presented in this study with different species of mammals, including humans, may contribute valuable information from an evolutionary point of view.
Collapse
Affiliation(s)
- Radan Elvis Matias de Oliveira
- Applied Animal Morphophysiology Laboratory, Department of Animal Sciences, Federal Rural University of Semi-Árido - UFERSA, Mossoró, Brazil.,Cetáceos da Costa Branca Project, University of the State of Rio Grande do Norte - PCCB-UERN, Mossoró, Brazil.,Vertebrate Morphophysiology Laboratory, Department of Morphology, Federal University of Rio Grande do Norte - UFRN, Natal, Brazil.,Center for Environmental Studies and Monitoring - CEMAM, Areia Branca, Brazil
| | - Giovanna Almeida Santoro
- Cetáceos da Costa Branca Project, University of the State of Rio Grande do Norte - PCCB-UERN, Mossoró, Brazil.,Vertebrate Morphophysiology Laboratory, Department of Morphology, Federal University of Rio Grande do Norte - UFRN, Natal, Brazil
| | - Augusto Carlos da Bôaviagem Freire
- Cetáceos da Costa Branca Project, University of the State of Rio Grande do Norte - PCCB-UERN, Mossoró, Brazil.,Center for Environmental Studies and Monitoring - CEMAM, Areia Branca, Brazil
| | - Fernanda Löffler Niemeyer Attademo
- Cetáceos da Costa Branca Project, University of the State of Rio Grande do Norte - PCCB-UERN, Mossoró, Brazil.,Center for Environmental Studies and Monitoring - CEMAM, Areia Branca, Brazil
| | - Stella Almeida Lima
- Cetáceos da Costa Branca Project, University of the State of Rio Grande do Norte - PCCB-UERN, Mossoró, Brazil.,Vertebrate Morphophysiology Laboratory, Department of Morphology, Federal University of Rio Grande do Norte - UFRN, Natal, Brazil.,Center for Environmental Studies and Monitoring - CEMAM, Areia Branca, Brazil
| | - Aline da Costa Bomfim
- Cetáceos da Costa Branca Project, University of the State of Rio Grande do Norte - PCCB-UERN, Mossoró, Brazil.,Vertebrate Morphophysiology Laboratory, Department of Morphology, Federal University of Rio Grande do Norte - UFRN, Natal, Brazil.,Center for Environmental Studies and Monitoring - CEMAM, Areia Branca, Brazil
| | - Ana Bernadete Lima Fragoso
- Cetáceos da Costa Branca Project, University of the State of Rio Grande do Norte - PCCB-UERN, Mossoró, Brazil
| | - Flávio José de Lima Silva
- Cetáceos da Costa Branca Project, University of the State of Rio Grande do Norte - PCCB-UERN, Mossoró, Brazil.,Center for Environmental Studies and Monitoring - CEMAM, Areia Branca, Brazil
| | - Simone Almeida Gavilan
- Cetáceos da Costa Branca Project, University of the State of Rio Grande do Norte - PCCB-UERN, Mossoró, Brazil.,Vertebrate Morphophysiology Laboratory, Department of Morphology, Federal University of Rio Grande do Norte - UFRN, Natal, Brazil.,Center for Environmental Studies and Monitoring - CEMAM, Areia Branca, Brazil
| | - Moacir Franco de Oliveira
- Applied Animal Morphophysiology Laboratory, Department of Animal Sciences, Federal Rural University of Semi-Árido - UFERSA, Mossoró, Brazil
| |
Collapse
|
44
|
de Oliveira GB, de Araújo Júnior HN, Dos Santos Sousa R, Bezerra FVF, Dos Santos AC, de Moura CEB, Silva AR, de Oliveira Rocha HA, de Oliveira MF. Morphology of the genital organs of the female red-rumped agouti (Dasyprocta leporina, Linnaeus, 1758) during estrous cycle phases and in advanced pregnancy. J Morphol 2019; 280:1232-1245. [PMID: 31233245 DOI: 10.1002/jmor.21027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 02/08/2018] [Revised: 05/27/2019] [Accepted: 06/06/2019] [Indexed: 11/11/2022]
Abstract
The study investigated the gross and microscopic anatomy of the genital organs of 20 agoutis at different stages of the estrous cycle and four in the final trimester of pregnancy. Specimens were euthanized and their reproductive organs were fixed in a 4% paraformaldehyde or 2.5% glutaraldehyde solution and submitted to routine histological techniques for light and scanning electron microscopy. In the ovary, during the proestrus phase, we observed developing follicles and corpus luteum (CL) in regression; during estrus, there were Graafian follicles; during metestrus, there was a hemorrhagic corpus, whereas in diestrus, there was a mature CL. The uterus was partially double because the cervix was cranially septate but caudally, the septum disappeared, forming a single ostium that opened into the vagina. Changes occurred along the estrous cycle in the uterine and vaginal epithelia, that is, an increase in the uterine epithelium height accompanied by an increase of thickness of the vaginal epithelium during the follicular phase and a decrease of thickness of both epithelia during the luteal phase. The endometrial lining was composed of a simple cuboidal epithelium to simple columnar epithelium with basal nuclei. The vaginal mucosa consisted of epithelium that varied from nonkeratinized stratified squamous (luteal phase) to keratinized stratified squamous (follicular phase). The clitoris was external to the vagina. It presented two protruding lateral keratinized spicules and a centralized urethra, with no common parts between the urinary and genital tracts. Anatomical and histological changes were observed mainly in the cervix, vagina and spicules of the clitoris during the EC.
Collapse
Affiliation(s)
| | | | - Rejane Dos Santos Sousa
- Department of Anatomy of Domestic and Wild Animals, School of Veterinary Medicine and Animal Sciences, Sao Paulo, Sao Paulo, Brazil
| | | | - Amilton Cesar Dos Santos
- Department of Anatomy of Domestic and Wild Animals, School of Veterinary Medicine and Animal Sciences, Sao Paulo, Sao Paulo, Brazil
| | | | - Alexandre Rodrigues Silva
- Department of Animal Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, State of Rio Grande do Norte, Brazil
| | - Hugo Alexandre de Oliveira Rocha
- Bioscience Center, Department of Biochemistry, Federal University of Rio Grande do Norte, Natal, State of Rio Grande do Norte, Brazil
| | - Moacir Franco de Oliveira
- Department of Animal Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, State of Rio Grande do Norte, Brazil
| |
Collapse
|
45
|
Praxedes ÉA, Oliveira LRMD, Silva MB, Borges AA, Santos MVDO, Silva HVR, Oliveira MFD, Silva AR, Pereira AF. Effects of cryopreservation techniques on the preservation of ear skin – An alternative approach to conservation of jaguar, Panthera onca (Linnaeus, 1758). Cryobiology 2019; 88:15-22. [DOI: 10.1016/j.cryobiol.2019.04.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 03/13/2019] [Accepted: 04/24/2019] [Indexed: 11/26/2022]
|
46
|
Silva HVR, Nunes TGP, Ribeiro LR, Freitas LAD, de Oliveira MF, Assis Neto ACD, Silva AR, Silva LDMD. Morphology, morphometry, ultrastructure, and mitochondrial activity of jaguar (Panthera onca) sperm. Anim Reprod Sci 2019; 203:84-93. [DOI: 10.1016/j.anireprosci.2019.02.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 01/11/2019] [Accepted: 02/25/2019] [Indexed: 12/23/2022]
|
47
|
Bezerra LGP, Souza ALP, Silva HVR, Vasconcelos FR, Moura ADAA, Pereira AF, Oliveira MFD, Silva AR. Ultrastructural description of fresh and frozen/thawed sperm derived from collared peccaries (
Pecari tajacu
Linnaeus, 1,758). Microsc Res Tech 2018; 81:1301-1309. [DOI: 10.1002/jemt.23138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 09/04/2018] [Indexed: 11/12/2022]
Affiliation(s)
- Luana Grasiele Pereira Bezerra
- Laboratory of Animal Germplasm Conservation, Universidade Federal Rural do Semiárido – UFERSA Rio Grande do Norte Brazil
| | - Ana Liza Paz Souza
- Post‐Graduation Program in Biotechnology, Universidade Federal do Ceará – UFC Ceará Brazil
| | | | | | | | - Alexsandra Fernandes Pereira
- Laboratory of Animal Germplasm Conservation, Universidade Federal Rural do Semiárido – UFERSA Rio Grande do Norte Brazil
| | - Moacir Franco de Oliveira
- Laboratory of Animal Germplasm Conservation, Universidade Federal Rural do Semiárido – UFERSA Rio Grande do Norte Brazil
| | - Alexandre Rodrigues Silva
- Laboratory of Animal Germplasm Conservation, Universidade Federal Rural do Semiárido – UFERSA Rio Grande do Norte Brazil
| |
Collapse
|
48
|
Sonaly de Moura Borges R, Barbalho de Macêdo L, de Macêdo Medeiros A, Fernandes de Queiroz G, Franco de Oliveira M, Eduardo Bezerra de Moura C. Stereology of spix's yellow-toothed cavy brain (Galea spixii, WAGLER, 1831). AVB 2018. [DOI: 10.21708/avb.2018.12.3.7876] [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: 11/18/2022] Open
|
49
|
Dos Santos AC, Conley AJ, de Oliveira MF, de Assis Neto AC. Development of urogenital system in the Spix cavy: A model for studies on sexual differentiation. Differentiation 2018; 101:25-38. [PMID: 29684807 DOI: 10.1016/j.diff.2018.04.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [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: 09/08/2017] [Revised: 04/04/2018] [Accepted: 04/11/2018] [Indexed: 12/17/2022]
Abstract
This study documented, for the first time, the morphological patterns of differentiation of male and female genital organs of Spix cavy (Galea spixii) using histological and ultrastructural analyses, with immuno-localization of steroidogenic enzymes, cytochromes P450 aromatase (P450arom) and 17α-hydroxylase/17, 20-lyase (P450c17), involved in the synthesis of estrogens and androgens respectively throughout fetal sexual development. Undifferentiated gonads of Spix cavy develop into ovaries in females after 25 days of gestation (DG), exhibiting P450arom immunoreactivity. After 25 DG, paramesonephric ducts develop and form oviducts, uterine horns and cranial portion of the vagina. The caudal portion of the vagina originates from the urogenital sinus, and a vaginal closure membrane is present at the end of gestation. Partial channeling of the urethra into the clitoris occurs after 40 DG, but complete channeling never occurs. A preputial meatus emerges near the tip of organ. In males, undifferentiated gonads develop into testes at 25 DG and develop immunoreactivity for P450c17, which is required for androgens synthesis and likely maintenance of mesonephric ducts. Mesonephric ducts develop subsequently, forming the epididymis and ductus deferens. The pelvic urethra develops after 25 DG with channeling into the penis occurring around 30 DG. This is the first morphological study describing the process of sexual differentiation during gestation in a hystricomorph rodent and one of the most comprehensive analyses conducted in any mammal. Male genital organ development follows the general pattern described in other domestic mammals, but does not include formation of the baculum as occurs in mice and rats. In females, clitoral development includes partial canalization by the urethra and development of a preputial meatus. Further studies are required to clarify the mechanisms involved in the differentiative processes described.
Collapse
Affiliation(s)
- Amilton Cesar Dos Santos
- Department of Surgery, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87 ZC, 05508-270 São Paulo-SP, Brazil
| | - Alan James Conley
- Population Health&Reproduction, School of Veterinary Medicine, University of California, Davis, USA
| | | | - Antônio Chaves de Assis Neto
- Department of Surgery, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87 ZC, 05508-270 São Paulo-SP, Brazil.
| |
Collapse
|
50
|
de Queiroz JPAF, de Souza JBF, de Morais Oliveira VR, de Souza Castelo T, Tavares Dantas MR, de Macedo Costa LL, de Oliveira MF. Sensible heat transfer and thermal windows in Dasyprocta leporina (Mammalia, Rodentia). BIOL RHYTHM RES 2018. [DOI: 10.1080/09291016.2018.1440771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- João Paulo Araújo Fernandes de Queiroz
- Laboratory of Biometeorology and Environmental Biophysics, Center of Biological and Health Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, Brazil
| | - João Batista Freire de Souza
- Laboratory of Biometeorology and Environmental Biophysics, Center of Biological and Health Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, Brazil
| | - Vanessa Raquel de Morais Oliveira
- Laboratory of Immunology and Wild Animal Studies, Center of Biological and Health Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, Brazil
| | - Thibério de Souza Castelo
- Laboratory of Biometeorology and Environmental Biophysics, Center of Biological and Health Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, Brazil
| | - Maiko Roberto Tavares Dantas
- Laboratory on Animal Germplasm Conservation, Center of Agrarian Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, Brazil
| | - Leonardo Lelis de Macedo Costa
- Laboratory of Biometeorology and Environmental Biophysics, Center of Biological and Health Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, Brazil
| | - Moacir Franco de Oliveira
- Laboratory of Applied Animal Morphophysiology, Center of Biological and Health Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, Brazil
| |
Collapse
|