title: Comparison of absorption of 1-deoxynojirimycin from mulberry water extract in rats.
abstract: In this study, we compared the absorption and excretion of DNJ in mulberry leaf extract against that of the purified compound (DNJ) using GC-TOF-MS, a newly developed analytical method, when administered orally to rats. Moreover, we also compared absorption levels in small intestinal cells using the Caco-2 cell line. In the cell study, DNJ absorption from the mulberry extract seemed to be inhibited when compared to that of the purified DNJ compound. The concentration of DNJ in rat plasma was also significantly (p < 0.05) lower when the mulberry extract was administered versus the purified DNJ compound. The metabolic pattern of DNJ from the mulberry leaf extract indicated that most was excreted in the feces, whereas a lower amount was detected in the urine, which was similar to the purified DNJ compound. These findings indicate that the bioavailability of DNJ in mulberry leaf extract might be lower than that of highly purified DNJ.
authors.affiliation: Department of Nutritional Science and Food Management, Ewha Womans University, 11-1 Daehyeon-dong, Seodeamun-gu, Seoul 120-750, Korea.
authors.forename: Ji Yeon
authors.initials: JY
authors.lastname: Kim
authors.forename: Hye Jin
authors.initials: HJ
authors.lastname: Kwon
authors.forename: Ji Young
authors.initials: JY
authors.lastname: Jung
authors.forename: Hye Young
authors.initials: HY
authors.lastname: Kwon
authors.forename: Jin Gyeong
authors.initials: JG
authors.lastname: Baek
authors.forename: Young-Suk
authors.initials: YS
authors.lastname: Kim
authors.forename: Oran
authors.initials: O
authors.lastname: Kwon
mesh_terms: D017485:1-Deoxynojirimycin / Q000008:administration & dosage / Q000493:pharmacokinetics*; D000818:Animals; D018938:Caco-2 Cells; D006801:Humans; D008297:Male; D031625:Morus / Q000737:chemistry*; D010936:Plant Extracts / Q000008:administration & dosage / Q000494:pharmacology*; D051381:Rats; D017207:Rats, Sprague-Dawley; D014018:Tissue Distribution; D014867:Water / Q000737:chemistry
chemical_list: D010936:Plant Extracts; D014867:Water; D017485:1-Deoxynojirimycin