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The Nose-Brain Axis

The Nose-Brain Axis

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
DRKS
Registry ID
DRKS00012908
Enrollment
120
Registered
2017-09-11
Start date
2017-11-01
Completion date
Unknown
Last updated
2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Olfactory dysfunction R43.0

Interventions

Group 1: Patients with ideophathic smell loss or after rhininasal infection: 3 time points (every 12 weeks): MRI / fecal and nasal mircobiome samples Group 2: Healthy subjects: 3 measurement time poin

Sponsors

Universität Graz
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 50 Years

Inclusion criteria

Inclusion criteria: Patients with olfactory dysfunction after traumatic brain injury, due to ideopathic or postviral infection; healthy subjects

Exclusion criteria

Exclusion criteria: Cardiovascular diseases, pulmonary diseases, nosebleeding within the last three days, chronic respiratory diseases, central nervous diseases, diseases affecting the cerebral metabolism, metallic implants, claustrophobia, pregnancy, neurological or psychiatric disorders, drug abuse

Design outcomes

Primary

MeasureTime frame
Investigation of neuroplasticity (fMRI) - in patients with ideopathic smell dysfunction or after rhinosinusitis vs. healthy subjects vs. patients with smell dysfunction after TBI (traumatic brain injury) (at time point 1) - in patients with ideopathic smell dysfunction or after rhinosinusitis vs. healthy subjects (at time point 2, after 12 weeks) - in patients with ideopathic smell dysfunction or after rhinosinusitis vs. healthy subjects (at time point 3, after 24 weeks)

Secondary

MeasureTime frame
Definition of biomarkers using microbiome measures in connection to olfactory dysfunction as an additional variable to explain neuroplastic alterations (fMRI)

Countries

Austria

Contacts

Public ContactFlorian Fischmeister

Universität Graz

florian.fischmeister@uni-graz.atTel: +43-316-3803885

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026