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Open AccessCommunication
Int. J. Mol. Sci. 2013, 14(12), 24055-24063;

The Effects of H2S on the Activities of CYP2B6, CYP2D6, CYP3A4, CYP2C19 and CYP2C9 in Vivo in Rat

Analytical and Testing Center, Wenzhou Medical University, Wenzhou 325035, China
Department of pharmacy, the First Affiliated Hospital, Wenzhou Medical University, Wenzhou 325000, China
Author to whom correspondence should be addressed.
Received: 29 September 2013 / Revised: 14 November 2013 / Accepted: 3 December 2013 / Published: 10 December 2013
(This article belongs to the Section Molecular Toxicology)
Full-Text   |   PDF [280 KB, uploaded 19 June 2014]


Hydrogen sulfide (H2S) is a colorless, flammable, extremely hazardous gas with a “rotten egg” smell. The human body produces small amounts of H2S and uses it as a signaling molecule. The cocktail method was used to evaluate the influence of H2S on the activities of CYP450 in rats, which were reflected by the changes of pharmacokinetic parameters of five specific probe drugs: bupropion, metroprolol, midazolam, omeprazole and tolbutamide, respectively. The rats were randomly divided into two groups, control group and H2S group. The H2S group rats were given 5 mg/kg NaHS by oral administration once a day for seven days. The mixture of five probes was given to rats through oral administration and the blood samples were obtained at a series of time-points through the caudal vein. The concentrations of probe drugs in rat plasma were measured by LC-MS. In comparing the H2S group with the control group, there was a statistically pharmacokinetics difference for midazolam and tolbutamide; the area under the plasma concentration-time curve (AUC) was decreased for midazolam (p < 0.05) and increased for tolbutamide (p < 0.05); while there was no statistical pharmacokinetics difference for bupropion, metroprolol and omeprazole. H2S could not influence the activities of CYP2B6, CYP2D6 and CYP2C19 in rats, while H2S could induce the activity of CYP3A4 and inhibit the activity of CYP2C9 in rats. View Full-Text
Keywords: CYP450; H2S; Cocktail; LC-MS CYP450; H2S; Cocktail; LC-MS
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Wang, X.; Han, A.; Wen, C.; Chen, M.; Chen, X.; Yang, X.; Ma, J.; Lin, G. The Effects of H2S on the Activities of CYP2B6, CYP2D6, CYP3A4, CYP2C19 and CYP2C9 in Vivo in Rat. Int. J. Mol. Sci. 2013, 14, 24055-24063.

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