Evidence map›Paper›PMID 29474516›Full record

ArticleChemical senses2018

Nasal Structural and Aerodynamic Features That May Benefit Normal Olfactory Sensitivity.

Chengyu Li, Jianbo Jiang, Kanghyun Kim, Bradley A Otto, Alexander A Farag, Beverly J Cowart, Edmund A Pribitkin, Pamela Dalton, Kai Zhao

Open access · bronzeAbstract read
In one paragraph

Article in Chemical senses, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.2field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 40 citations in OpenAlex.

  1. Determinants of olfactory cleft targeting in intranasal aerosol delivery: a combined computational and experimental study.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026
    Article
  2. [Research progress on the improvement of olfactory function by different surgical procedures for chronic rhinosinusitis].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2026
    Review
  3. Changes in olfactory function of adults following surgically assisted maxillary expansion.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2025
    Article
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  6. Nasal breathing: a neglected factor in metabolic regulation?European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2025
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  9. How the evolution of air breathing shaped hippocampal function.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Chengyu LiDepartment of Otolaryngology-Head & Neck Surgery, The Ohio State University, Columbus, OH, USA.
Jianbo JiangDepartment of Otolaryngology-Head & Neck Surgery, The Ohio State University, Columbus, OH, USA.
Kanghyun KimDepartment of Otolaryngology-Head & Neck Surgery, The Ohio State University, Columbus, OH, USA.
Bradley A OttoDepartment of Otolaryngology-Head & Neck Surgery, The Ohio State University, Columbus, OH, USA.
Alexander A FaragDepartment of Otolaryngology-Head & Neck Surgery, The Ohio State University, Columbus, OH, USA.
Beverly J CowartMonell Chemical Senses Center, Philadelphia, PA, USA.
Edmund A PribitkinDepartment of Otolaryngology-Head & Neck Surgery, Thomas Jefferson University, Philadelphia, PA, USA.
Pamela DaltonMonell Chemical Senses Center, Philadelphia, PA, USA.
Kai ZhaoDepartment of Otolaryngology-Head & Neck Surgery, The Ohio State University, Columbus, OH, USA.
The Ohio State University · USThomas Jefferson University · USMonell Chemical Senses Center · US

Funding

Objective evaluation of conductive olfactory losses & nasal obstruction symptomsR01DC013626 · NIDCD · OHIO STATE UNIVERSITY · PI ZHAO, KAI · 2015 to 2018
$1.6M
NIDCD NIH HHS R01 DC013626
6 · The paper itself

Abstract

Nasal airflow that effectively transports ambient odors to the olfactory receptors is important for human olfaction. Yet, the impact of nasal anatomical variations on airflow pattern and olfactory function is not fully understood. In this study, 22 healthy volunteers were recruited and underwent computed tomographic scans for computational simulations of nasal airflow patterns. Unilateral odor detection thresholds (ODT) to l-carvone, phenylethyl alcohol (PEA) and d-limonene were also obtained for all participants. Significant normative variations in both nasal anatomy and aerodynamics were found. The most prominent was the formation of an anterior dorsal airflow vortex in some but not all subjects, with the vortex size being significantly correlated with ODT of l-carvone (r = 0.31, P < 0.05). The formation of the vortex is likely the result of anterior nasal morphology, with the vortex size varying significantly with the nasal index (ratio of the width and height of external nose, r = -0.59, P < 0.001) and nasal vestibule "notch" index (r = 0.76, P < 0.001). The "notch" is a narrowing of the upper nasal vestibule cartilage region. The degree of the notch also significantly correlates with ODT for PEA (r = 0.32, P < 0.05) and l-carvone (r = 0.33, P < 0.05). ODT of d-limonene, a low mucosal soluble odor, does not correlate with any of the anatomical or aerodynamic variables. The current study revealed that nasal anatomy and aerodynamics might have a significant impact on normal olfactory sensitivity, with greater airflow vortex and a narrower vestibule region likely intensifying the airflow vortex toward the olfactory region and resulting in greater olfactory sensitivity to high mucosal soluble odors.

Indexed as

Air MovementsAdultCyclohexane MonoterpenesFemaleHumansImaging, Three-DimensionalLimoneneMaleMonoterpenesNoseOlfactory PerceptionRhinometry, AcousticSensory ThresholdsSmellStereoisomerismTomography, X-Ray ComputedcarvoneCyclohexane MonoterpenesLimoneneMonoterpenes

Identifiers

PMID29474516
PMCPMC5913651
OpenAlexW2791351197

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.