1982
DOI: 10.1016/0006-2952(82)90021-1
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The relationship between binding to cytochrome P-450 and metabolism of n-alkyl carbamates in isolated rat hepatocytes

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Cited by 10 publications
(10 citation statements)
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“…Except for ethyl carbamate the areas were found not to be equal and it must therefore be concluded that more parent carbamate reaches the vascular compartment by the intravenous route that by the intraduodenal route. Cytochrome P-450 appears to be responsible for this 0-1 oxidative reaction (Sargent et al 1982). Houston et a1 (1974a) have shown that minimal metabolism of these carbamates occurs in rat gut sac preparations, in contrast, metabolism by hepatocytes is extensive (Sargent et all982).…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Except for ethyl carbamate the areas were found not to be equal and it must therefore be concluded that more parent carbamate reaches the vascular compartment by the intravenous route that by the intraduodenal route. Cytochrome P-450 appears to be responsible for this 0-1 oxidative reaction (Sargent et al 1982). Houston et a1 (1974a) have shown that minimal metabolism of these carbamates occurs in rat gut sac preparations, in contrast, metabolism by hepatocytes is extensive (Sargent et all982).…”
Section: Discussionmentioning
confidence: 99%
“…The aliphatic carbamates (C, -Clo), which have anaesthetic properties, have proved to be a valuable series of compounds with which to examine the effects of lipophilicity on drug absorption (Houston et al 1974a,b;Wood et al 1978;Bridges e t a1 1979) and on cytochrome P-450 and albumin binding (Al-Gailany et al 1978;Sargent et al 1982;Wilson et al 1972). These studies have demonstrated that the lipophilicity of a drug may be an important determinant of its pharmacokinetic behaviour.…”
mentioning
confidence: 99%
“…L-HpGlu-L-Leu-NHCN (19) and L-HpGlu-L-Phe-NHCN (20) were readily prepared by coupling of L-HpGlu-L-Leu and L-HpGlu-L-Phe with sodium cyanamide via their respective IV-hydroxysuccinimide activated esters. However, 19 and L-pyroglutamylcyanamide itself (21) could not be obtained in pure form.…”
Section: Chemistrymentioning
confidence: 99%
“…glutamyl-L-leucyl- (19), and L-pyroglutamyl-L-phenylalanylcyanamide (20). All of these prodrugs of cyanamide raised ethanol-derived blood acetaldehyde levels in rats significantly over controls 3 h after ip drug administration, and some of these were still capable of elevating blood acetaldehyde 16 h post drug administration.…”
mentioning
confidence: 96%
“…Οι µητρικές ουσίες όσο και ταπροϊόντα του µεταβολισµού τους, όπως είναι τα προϊόντα της οξείδωσής τους, µπορούν να υποστούν υδρόλυση. Η υποκατάσταση των ατόµων υδρογόνου των αρωµατικών δακτυλίων των CBMs φαίνεται ότι επηρεάζει την ταχύτητα της υδρόλυσης διαφόρων καρβαµιδικών στον οργανισµό των θηλαστικών και συγκεκριµένα τα Ν-µεθυλουποκατεστηµένα CBMs µε πάρα υποκαταστάτες, υπόκεινται γρηγορότερα σε υδρόλυση από τα υπόλοιπα µόρια της κατηγορίας αυτής 58,112 . Οι καρβαµιδικοί εστέρες, αν και υδρολύονται από µη στερεοειδικές εστεράσες, δεν είναι κατάλληλα υποστρώµατα για υδρόλυση από τις εστεράσες που βρίσκονται σε διάφορους ιστούς οργάνων 101 , ωστόσο ο Sogorb αναφέρει ότι ο µεταβολισµός τους από τις CarbEs είναι και ο κύριος µεταβολισµός αποτοξίνωσής τους 113 .…”
Section: μεταβολισµός φάση ι: υδρόλυσηunclassified