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Morphological and Immunohistochemical Features of the Vomeronasal System in Dogs

By Ignacio Salazar, Jose M. Cifuentes, Pablo Sanchez-Quinteiro

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Each of the structures integrating the sense of smell in mammals has a different degree of development, even in the so‐called macrosmatic animals, according to the capacity of the olfactory system to detect thousands of different chemical signals. Such morphological diversity implies analogous physiological variation. The study of the accessory olfactory system, also known as the vomeronasal system, is a useful way to analyze the heterogeneity of the sense of smell. Macrodissection and microdissection methods as well as conventional histology and immunohistochemistry protocols were used to study aspects of the vomeronasal organ and the accessory olfactory bulbs in dogs. Observations regarding the end of the anterior part of the vomeronasal duct have been emphasized. Both lectins, Ulex europaeus agglutinin I and Lycopersicum esculentum agglutinin, and one G protein, Gαi2, show a similar pattern of binding in the sensory epithelium of the vomeronasal organ and in the vomeronasal nerve and glomerular layers of the accessory olfactory bulb, whereas the expression of protein Gαo was not observed. Taken together, our results emphasize the contribution of comparative data to our understanding of the vomeronasal system function.

Date 2013
Publication Title Anatomical Record
Volume 296
Issue 1
Pages 146-155
ISBN/ISSN 1932-8486
DOI 10.1002/ar.22617
Language English
Author Address Salazar, Ignacio; Fac Vet, Dept Anat and Anim Prod, Unit Anat and Embryol, Avda Carballo Calero S-N, Lugo 27002, Spain
Additional Language English
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  1. Angiosperms
  2. Animals
  3. Canidae
  4. Carnivores
  5. Embryos
  6. Females
  7. Flowers
  8. Fruits
  9. Histology
  10. Immunology
  11. Laboratories
  12. Legumes
  13. Methods
  14. Mice
  15. nervous system
  16. open access
  17. peer-reviewed
  18. Plants
  19. Rodents
  20. senses
  21. sensory system
  22. Techniques
  23. tissues
  1. open access
  2. peer-reviewed