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Heterogeneous distribution of mature olfactory sensory neurons in human olfactory epithelium.
Omura, Kazuhiro; Han, Bing; Nishijima, Hironobu; Aoki, Satoshi; Ebihara, Teru; Kondo, Kenji; Otori, Nobuyoshi; Kojima, Hiromi; Yamasoba, Tatsuya; Kikuta, Shu.
Afiliação
  • Omura K; Department of Otorhinolaryngology, The Jikei University School of Medicine, Minato-ku, Tokyo, Japan.
  • Han B; Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
  • Nishijima H; Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
  • Aoki S; Department of Otorhinolaryngology, Dokkyo Medical University Saitama Medical Center, Koshigaya, Saitama, Japan.
  • Ebihara T; Department of Otorhinolaryngology, The Jikei University School of Medicine, Minato-ku, Tokyo, Japan.
  • Kondo K; Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
  • Otori N; Department of Otorhinolaryngology, The Jikei University School of Medicine, Minato-ku, Tokyo, Japan.
  • Kojima H; Department of Otorhinolaryngology, The Jikei University School of Medicine, Minato-ku, Tokyo, Japan.
  • Yamasoba T; Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
  • Kikuta S; Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
Int Forum Allergy Rhinol ; 12(3): 266-277, 2022 03.
Article em En | MEDLINE | ID: mdl-34538025
ABSTRACT

BACKGROUND:

The olfactory cleft (OC) comprising the olfactory epithelium (OE) is the most important anatomical location for olfactory function. Endoscopic sinus surgery (ESS) is used to treat diseases related to the OC and improve olfactory dysfunction. However, iatrogenic OE injury occasionally occurs. Comprehensive knowledge of the olfactory region is required to avoid damage to the OE during endoscopic procedures.

METHODS:

Immunohistochemistry was performed on olfactory mucosa obtained from the unaffected side of olfactory neuroblastoma surgical specimens. The OE was defined as the epithelium containing mature olfactory sensory neurons (OSNs). The distribution and cell kinetics of the OE were examined.

RESULTS:

The OE was selectively localized to the anterior two-thirds of the superior turbinate (ST) and in the nasal septum (NS) just opposite to the ST; the OE was not detected within the mucosa of the superior meatus. The density of mature OSNs was high at the ethmoid tegmen but gradually decreased with distance from the ethmoid tegmen. The extent of cell death and proliferation was relatively even across the OE. Analysis of airflow profiles revealed that resection of inferior ST does not decrease airflow to the OC.

CONCLUSION:

The results indicate that the distribution and degree of differentiation of mature OSNs are heterogenous throughout the OE. Epithelial resection of the anterior or superior ST has the potential to damage olfactory function. Resection of the inferior or posterior ST or widening of the superior meatus is a safer alternative that does not damage mature OSNs or alter airflow to the OC.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Neurônios Receptores Olfatórios Limite: Humans Idioma: En Ano de publicação: 2022 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Neurônios Receptores Olfatórios Limite: Humans Idioma: En Ano de publicação: 2022 Tipo de documento: Article