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Combination of intracellular cryoprotectants preserves the structure and the cells proliferative capacity potential of adult collared peccary testicular tissue subjected to solid surface vitrification.
da Silva, Andréia Maria; Bezerra, Luana Grasiele Pereira; Praxedes, Erica Camila Gurgel; Moreira, Samara Sandy Jerônimo; de Souza, Carla Michele Pereira; de Oliveira, Moacir Franco; Pereira, Alexsandra Fernandes; Comizzoli, Pierre; Silva, Alexandre Rodrigues.
Afiliación
  • da Silva AM; Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid, Mossoró, RN, Brazil.
  • Bezerra LGP; Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid, Mossoró, RN, Brazil.
  • Praxedes ECG; Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid, Mossoró, RN, Brazil.
  • Moreira SSJ; Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid, Mossoró, RN, Brazil.
  • de Souza CMP; Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid, Mossoró, RN, Brazil.
  • de Oliveira MF; Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid, Mossoró, RN, Brazil.
  • Pereira AF; Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoro, RN, Brazil.
  • Comizzoli P; Smithsonian Conservation Biology Institute, National Zoological Park, Veterinary Hospital, Washington, DC, USA.
  • Silva AR; Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid, Mossoró, RN, Brazil. Electronic address: alexrs@ufersa.edu.br.
Cryobiology ; 91: 53-60, 2019 12.
Article en En | MEDLINE | ID: mdl-31678072
The objective was to evaluate different permeating cryoprotectants to vitrify testicular tissue biopsies from adult collared peccaries. Five pairs of testicles were dissected into fragments (9 mm³) that were allocated to non-vitrified (control) and vitrified groups using a solid-surface method following exposure to different cryoprotectants (3.0 M dimethyl sulfoxide (DMSO), 3.0 M ethylene glycol (EG) or 1.5 M DMSO + 1.5 M EG). After warming, samples were evaluated for histomorphology, ultrastructure, viability, and proliferative capacity potential. The appropriate conservation of the ultrastructural organization of the seminiferous tubule in terms of lumen presence and cell junctions was only observed at the use of DMSO/EG combination. Regardless of the cryoprotectant, the vitrification effectively preserved cell nuclear visualization and condensation similarly as observed at the non-vitrified group. Moreover, DMSO/EG combination provided a better preservation of basal membranes of seminiferous tubules than DMSO (P < 0.05). The occurrence of cell swelling was more evident in the use of DMSO than EG (P < 0.05), but both isolate cryoprotectants were similar to the DMSO/EG combination. Only the DMSO/EG combination maintained the proliferative capacity potential for spermatogonia (3.69 NORs/cell) and Sertoli cell (3.19 NORs/cell) similar to controls (3.46 and 3.31 NORS/cell, respectively). Moreover, ~40% cell viability was found after vitrification independent of cryoprotectant. In conclusion, DMSO/EG in combination is better than DMSO or EG alone for SSV of testicular tissue biopsies from adult collared peccaries.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Testículo / Criopreservación / Dimetilsulfóxido / Glicol de Etileno / Crioprotectores Límite: Animals Idioma: En Revista: Cryobiology Año: 2019 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Países Bajos
Texto completo
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Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Testículo / Criopreservación / Dimetilsulfóxido / Glicol de Etileno / Crioprotectores Límite: Animals Idioma: En Revista: Cryobiology Año: 2019 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Países Bajos