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Expression of neuronal and non-neuronal markers in the vomeronasal organs of one-humped camel (Camelus dromedarius) and Egyptian water buffalo (Bubalus bubalis) / Expresión de marcadores neuronales y no neuronales en los órganos vomeronasales del camello jorobado y el búfalo egipcio de agua
Emam, Mahmoud Abdelghaffar; El-Shafey, Anwar A; Kassab, Ahmed A.
  • Emam, Mahmoud Abdelghaffar; Benha University. Faculty of Veterinary Medicine. Histology and Cytology Department. Benha. EG
  • El-Shafey, Anwar A; Benha University. Faculty of Veterinary Medicine. Anatomy and Embryology Department. Benha. EG
  • Kassab, Ahmed A; Benha University. Faculty of Veterinary Medicine. Anatomy and Embryology Department. Benha. EG
Int. j. morphol ; 34(4): 1211-1217, Dec. 2016. ilus
Article in English | LILACS | ID: biblio-840869
ABSTRACT
Fourteen vomeronasal organs (VNOs) of adult males one-humped camels (Camelus dromedarius) and Egyptian water buffaloes (Bubalus bubalis) (n=7/each) were examined immunohistochemically with neuronal markers; synaptophysin (SYP) and glial fibrillary acidic protein (GFAP) to clarify the distribution of the vomeronasal (VN) receptor cells and nerve fibers, in addition to elucidate the existence of non-neuronal elements via S-100 and endothelial nitric oxide synthase (eNOS). In both animals, the VNO was lined medially with VN sensory (olfactory) epithelium and non-sensory (respiratory) epithelium laterally. Immunohistochemically, both animals showed SYP immunolabeling only in the receptor cells of VN sensory epithelium while GFAP labeled the ensheathing cells of the nerve fibers of VNOs. Both S-100 and eNOS labeled non-neuronal elements of the VNO; the supporting cells of sensory epithelium and the VN glands. In view of these observations, we postulate that the VNOs of both animals contain various cells populations that express several neuronal and non-neuronal markers. As well as, SYP and GFAP are suggested as markers for receptor cells and ensheathing cells of nerves of the VNOs respectively. However, no clear differences can be detected in the expressions of neuronal and non-neuronal markers in VNOs of camel and buffalo since they are ruminant species.
RESUMEN
En este estudio fueron examinados 14 órganos vomeronasales (OVN) de machos adultos de camellos de una joroba (Camelus dromedarius) y búfalos egipcios de agua (Bubalus bubalis) (n = 7 / cada uno) por inmunohistoquímica con marcadores neuronales, sinaptofisina (SIP) y proteína ácida fibrilar glial (PAFG), para identificar la distribución vomeronasal (VN) del receptor de células y fibras nerviosas, además de dilucidar la existencia de elementos no neuronales a través de S-100 y óxido nítrico sintasa endotelial (ONSe). En ambos animales, el OVN se encuentra alineado en sentido medial con el epitelio sensorial (olfato) y lateralmente con el epitelio no sensorial (respiratorio). En el estudio inmunohistoquímico, ambos animales mostraron marcadores inmunológicos solamente en las células receptoras del epitelio sensorial VN, mientras que la proteína ácida fibrilar glial marcaba las fibras nerviosas de OVN. Tanto el S-100 como la óxido nítrico sintasa endotelial, marcaron elementos no neuronales del OVN, las células de revestimiento del epitelio sensorial y las glándulas VN. En relación a estas observaciones, se postula que los OVN de ambos animales contienen células que expresan varios marcadores neuronales y no neuronales. SIP y la PAFG se sugieren como marcadores para células receptoras y las células gliales de nervios del OVN, respectivamente. Sin embargo, debido a que son especies de rumiantes, no existen diferencias claras que se puedan detectar en las expresiones de los marcadores neuronales y no neuronales en el OVN de camello y búfalo.
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Full text: Available Index: LILACS (Americas) Main subject: Buffaloes / Camelus / Vomeronasal Organ Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2016 Type: Article Affiliation country: Egypt Institution/Affiliation country: Benha University/EG

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Full text: Available Index: LILACS (Americas) Main subject: Buffaloes / Camelus / Vomeronasal Organ Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2016 Type: Article Affiliation country: Egypt Institution/Affiliation country: Benha University/EG