Neurobiological mechanisms of olfactory dysfunction: a ten-year bibliometric and visualization analysis - Report - MDSpire

Neurobiological mechanisms of olfactory dysfunction: a ten-year bibliometric and visualization analysis

  • By

  • Yuxin Zhu

  • Yutian Chen

  • Genki Izumoji

  • Siying Qu

  • Donghai Wu

  • Huiqin Chu

  • Yixiang Wang

  • Haiju Sun

  • Xiaoyu Li

  • May 13, 2026

  • 0 min

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Clinical Report: Exploring the Neurobiological Foundations of Olfactory Dysfunction

Overview

This report highlights the increasing research interest in olfactory dysfunction (OD), particularly its mechanisms and associations with neurodegenerative diseases and COVID-19. A bibliometric analysis reveals a rising trend in publications, with significant contributions from the USA and key institutions.

Background

Olfactory dysfunction is a common condition that can serve as an early biomarker for neurodegenerative diseases such as Parkinson's and Alzheimer's. Its prevalence, particularly in the context of COVID-19, underscores the need for comprehensive mechanistic research to improve early diagnosis and management strategies. Understanding the underlying mechanisms of OD is crucial for developing effective interventions.

Data Highlights

MetricValue
Total Articles7,915
Most Productive CountryUSA (2,635 publications)
Most Productive InstitutionUniversity of California System (143 publications)
Most Productive AuthorThomas Hummel (174 publications)
Interventional Clinical Trials14 trials

Key Findings

  • The number of publications on OD mechanisms is increasing annually.
  • Key research topics include COVID-19, Parkinson’s disease, and inflammation.
  • 14 interventional clinical trials were identified, focusing on various treatment approaches.
  • OD is linked to significant neurodegenerative disorders, with high prevalence rates in early-stage patients.
  • Inflammatory pathways play a critical role in the pathophysiology of OD.

Clinical Implications

Healthcare professionals should consider olfactory dysfunction as a potential early indicator of neurodegenerative diseases. Integrating mechanistic insights into clinical practice can enhance diagnostic accuracy and inform treatment strategies for affected patients.

Conclusion

The study underscores the importance of advancing mechanistic research on olfactory dysfunction, which may lead to improved clinical interventions and better patient outcomes in neurodegenerative disease management.

Related Resources & Content

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  3. BMC Psychiatry, 2026 -- The Progression of SSRI Research: Insights from Four Decades of Knowledge Development
  4. Frontiers in Immunology, 2026 -- Immunological landscape of nanotechnology-based depression research: a bibliometric analysis of neuroinflammation and immune modulation
  5. Summary of Japanese clinical practice guidelines 2025 for the management of olfactory dysfunction - ScienceDirect
  6. Japanese Clinical Practice Guidelines 2025
  7. https://www.rhinologyjournal.com/Rhinology_issues/manuscript_3277.pdf
  8. BMC NutritionAlzahrani *et al.* BMC Nutrition  (2025) 11:135

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