Oral delivery of carrier-free dual-drug nanocrystal self-assembled microspheres improved NAD+ bioavailability and attenuated cardiac ischemia/reperfusion injury in mice

Autor: Hongfei Nie, Yarong Zhang, Haiyang Yu, Hong Xiao, Tao Li, Qian Yang
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Drug Delivery, Vol 28, Iss 1, Pp 433-444 (2021)
Druh dokumentu: article
ISSN: 1071-7544
1521-0464
10717544
DOI: 10.1080/10717544.2021.1886198
Popis: Nicotinamide riboside (NR), as a dietary supplement, can be converted to nicotinamide adenine dinucleotide (NAD+) in cells to support mitochondrial energy metabolism. However, the efficacy of oral administrated NR is limited due to its quick degradation in circulation and low bioavailability in targeted organs. In this study, we fabricated nanocrystal self-assembled microspheres by Nano Spray Dryer for oral delivery of NR. The structure of NR and resveratrol (RES) nanocrystal self-assembled microspheres (NR/RESms) is confirmed by the morphology, chemical structure, and crystallization. The NR/RESms displayed restricted NR release at the gastric acid-mimic condition (46% within 8 hours). Oral administration of NR/RESms for 8 hours significantly elevated NAD+ levels in serum (169.88 nM versus 30.93 nM in the NR group, p
Databáze: Directory of Open Access Journals