Ergothioneine, sinadarin ƙwaro da ake kira “vitamin ɗin dogon rayuwa,” ya nuna sabuwar hanya da ke haɗa ƙaruwa da ƙara NAD+. A wani bincike da aka wallafa a Cell Metabolism, berayen da suka tsufa kuma aka ba su ET sun samu ƙarin juriya a treadmill, ƙara ƙarfi a tsoka, da hauhawar matakin NAD+. An gano cewa tasirin ya ta’allaka ne da hanyar hydrogen sulfide wadda ke haɗa CSE, persulfidation, da enzyme cGPDH. Idan an cire CSE ko cGPDH, wadannan fa'idodi sun ɓace. Koyaya, binciken an yi shi ne a dabbobi da dakin gwaje‑gwaje, kuma adadin da aka yi amfani da shi a berayen ya kai kusan sau 10 na abin da aka saba samu a ƙwayoyin ƙaruwa.
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