NAD Sprayed Up the Nose Helped Mice Regrow Their Sense of Smell
This early animal work hints NAD might one day help restore lost smell, but human proof is missing.
A form of NAD delivered through the nose helped restore lost smell in mice and pushed stem cells to become new smell neurons. For anyone who lost their sense of smell after COVID, this hints at a possible future treatment. But this was tested in mice and lab-grown human cells, not in people yet. It's early days, so don't expect a nasal NAD spray at the pharmacy soon.
Conflict of Interest Disclosure: The authors declare no conflicts of interest.
Disclaimer: Research summaries are provided for informational purposes only and do not constitute medical advice. Always consult a qualified healthcare professional before making changes to your health routine.
Related Studies
All researchNicotinamide Riboside May Shield Female Mouse Muscle From Heat Damage
Heat stress can hurt muscle by triggering inflammation and damaging the cell's power plants.
Nicotinamide Riboside Protected Mitochondria in Mice With a Rare Muscle Disease
NR, a popular NAD+ booster, kept muscle cell powerhouses working in mice with a rare genetic muscle disorder.
Why NAD+ Boosters Like NR May Be a Double-Edged Sword for Muscle
Many people take NMN or NR hoping to fight age-related muscle loss.