Journal article

Publication year: 2012

Pages: 991-996

Journal: Pharmazie

Volume number: 67

Issue number: 12

ISSN: 0031-7144

DOI Link: https://doi.org/10.1691/ph.2012.2050

Publisher: Govi Verlag GMBH

Abstract: 
In the present study, over a period of 8 days 12 mg/kg/d quercetin aglycone and 18 mg/kg/d isoquercitrin were orally given to rats, respectively. Four hours after administration, plasma samples were taken as well as tissue samples of liver, lung, heart, kidney and the brain sections hippocampus, cerebellum, striatum, cortex and the remaining brain. A HPLC-FD method with in-line post-column complexation was employed to quantify the quercetin metabolites (QM) in plasma and tissues. Compared to the quercetin gavage the isoquercitrin gavage consistently produced higher levels of QM in tissues (double to five-fold) as well as in plasma (double to three-fold). In body tissues, the highest amounts of QM were observed in the lung. In brain tissue, the highest levels of QM were found in the cerebellum, while the striatum contained the lowest levels of QM. In conclusion, this study clearly demonstrates that orally given isoquercitrin leads to higher levels in plasma and in all investigated tissue than quercetin aglycone.

Harvard Citation style: Paulke, A., Eckert, G., Schubert-Zsilavecz, M. and Wurglics, M. (2012) Isoquercitrin provides better bioavailability than quercetin: comparison of quercetin metabolites in body tissue and brain sections after six days administration of isoquercitrin and quercetin, Pharmazie, 67(12), pp. 991-996. https://doi.org/10.1691/ph.2012.2050

APA Citation style: Paulke, A., Eckert, G., Schubert-Zsilavecz, M., & Wurglics, M. (2012). Isoquercitrin provides better bioavailability than quercetin: comparison of quercetin metabolites in body tissue and brain sections after six days administration of isoquercitrin and quercetin. Pharmazie. 67(12), 991-996. https://doi.org/10.1691/ph.2012.2050