Linked Life Data

11733086

Source:http://linkedlifedata.com/resource/pubmed/id/11733086

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2001-12-4
pubmed:abstractText
Pharmacokinetics of nicotine was studied in rats following intravenous (i.v.) administration of nicotine base (NB) and nicotine hydrogen tartarate salt (NS) at a nicotine dose of 1 mg/kg. The area under the plasma concentration-time curve (AUC), mean residence time (MRT), systemic clearance (CL), distribution volume at steady state (V(ss)) and terminal plasma half-life (T(1/2,beta)) of nicotine were compared between NB and NS. Compared to NS, NB exhibited higher and sustained plasma nicotine levels, thereby yielding significantly (P<0.05) larger AUC (66.3 vs. 27.7 microg ml/min), MRT (165.7 vs. 58.3 min), T(1/2,beta) (144.2 vs. 51.4 min) and a lower CL (18.3 vs. 46.3 ml/min per kg). The V(ss) was comparable between the two compounds. The metabolic conversion to cotinine from NS was threefold larger than that from NB. The plasma protein binding and distribution to blood cells were comparable between the compounds. The apparent partition coefficient (APC) of NS decreased as a function of its concentration, while that of NB remained nearly constant. Particles of different mean sizes were observed for the 1% (w/v) aqueous solutions of NS (388.6 nm) and NB (123.8 nm). Different metabolism and/or elimination between NB and NS appear to be mainly responsible for their different pharmacokinetics.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0168-3659
pubmed:author
pubmed:issnType
Print
pubmed:day
13
pubmed:volume
77
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
183-90
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Different pharmacokinetics of nicotine following intravenous administration of nicotine base and nicotine hydrogen tartarate in rats.
pubmed:affiliation
Department of Pharmaceutics, College of Pharmacy, Seoul National University, San 56-1, Shinlim-Dong, Kwanak-Gu, 151-742, Seoul, South Korea.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't