<p>➀ Researchers at the Icahn School of Medicine at Mount Sinai have developed a lipid nanoparticle system capable of delivering mRNA to the brain; </p><p>➁ This system bypasses the blood-brain barrier and could potentially treat conditions like drug addiction and Alzheimer's disease; </p><p>➂ The study shows that the lipid nanoparticles can safely and efficiently deliver mRNA into the brain, opening opportunities for mRNA-based therapies for neurological and psychiatric disorders.</p>