The Interplay between Mitochondrial Metabolism and Nasal Mucociliary Function as a Surrogate Method to Diagnose...

Area of Science:

• Endocrinology and Metabolism
• Diagnostic Medicine
• Mitochondrial Biology

Background:

• Thyroid dysfunction significantly impacts mitochondrial metabolism.
• Proper mitochondrial function is crucial for ciliary motility.
• Alternative diagnostic methods are needed for patients with contraindications to blood tests.

Purpose of the Study:

• To evaluate the diagnostic utility of a nasal mucociliary (NMC) test as a surrogate for assessing thyroid function.
• To explore the use of Iranica Picris extract in the NMC test for differentiating thyroid states.
• To investigate the correlation between NMC test results and standard thyroid function tests (TSH, T4).

Main Methods:

• A cross-sectional study involving 232 participants without prior thyroid disease.
• Assessment of nasal mucociliary function using Iranica Picris aqueous extract.
• Receiver operating characteristic (ROC) analysis to determine diagnostic value for hypothyroidism and hyperthyroidism versus euthyroid state.

Main Results:

• The NMC test demonstrated good diagnostic value for overt hypothyroidism (AUROC = 0.82) and fair value for subclinical hyperthyroidism (AUROC = 0.78).
• Significant correlations were observed between NMC test results and TSH (r = 0.47) and T4 (r = -0.32) levels.
• NMC test rates significantly differed across thyroid function groups, with higher rates in hypothyroidism and lower rates in subclinical hyperthyroidism compared to euthyroid individuals.

Conclusions:

• The Iranica Picris-based NMC test is a potential non-invasive method for diagnosing overt hypothyroidism.
• The NMC test may also aid in identifying subclinical hyperthyroidism.
• This alternative diagnostic approach is valuable for patients with contraindications to blood sampling.