NAD + yakakosha coenzyme mumaserura ehupenyu maitiro, ichitamba epakati pesimba metabolism, DNA kugadzirisa uye anti-kuchembera, cellular kusagadzikana mhinduro uye chiratidzo chechiratidzo, pamwe neuroprotection. Musimba remetabolism, NAD+ inoshanda seyakakosha maerekitironi mutakuri muglycolysis, iyo tricarboxylic acid kutenderera, uye mitochondrial oxidative phosphorylation, kutyaira ATP synthesis uye kupa simba rezviitiko zvemaserura. Panguva imwecheteyo, NAD + inoshanda seyakakosha substrate yeDNA kugadzirisa ma enzymes uye activator ye sirtuins, nekudaro kuchengetedza genomic kugadzikana uye kubatsira kuhupenyu hurefu. Pasi pemamiriro eiyo oxidative kusagadzikana uye kuzvimba, NAD + inotora chikamu mukusaina nzira uye calcium regulation kuchengetedza cellular homeostasis. Muhurongwa hwetsinga, NAD + inotsigira basa remitochondrial, inoderedza kukuvara kweoxidative, uye inobatsira kunonoka kutanga uye kufambira mberi kwezvirwere zveurourodegenerative. Sezvo mazinga eNAD+ achidzikira nezera, mazano ekuchengetedza kana kusimudzira NAD+ ari kuwedzera kuzivikanwa seakakosha mukusimudzira hutano uye kunonoka kuchembera.