Photobiomodulation Promotes Early Recovery of Olfactory Function and Modulates Neuroprotective Gene Expression in a Mouse Model of Ischemic Stroke

What the authors concluded

PBM significantly accelerated olfactory function recovery by day 14, with full recovery maintained through day 28. Despite functional recovery, MRI results indicated persistent infarction at 28 days. RNA-seq identified upregulation of neuroprotective genes, including Gpr39 and Or4m1, following PBM treatment, suggesting enhanced gene expression related to acute-phase recovery. However, the i

Devices that emit this wavelength

Matched on wavelength within 15nm, since LED bins vary by roughly that much and a tighter match would be false precision. Where we have an irradiance figure, the session length is the time needed to reach this study's dose of 40 J/cm² at that intensity.

Matching a wavelength is not the same as reproducing a trial. Session times assume the device's published irradiance is accurate at the distance it was measured, which on brand-claim figures is often optimistic. Where a device publishes both a peak and an average we use the average, and where it publishes a falloff curve we use the lowest figure, so these times run long rather than short. Clinical protocols also control for spot size, contact and skin type in ways a home device cannot.