Title: Gamma-hydroxybutyrate overdose and physostigmine: teaching new tricks to an old drug? Caldicott DG, Kuhn M Ref: Annals of Emergency Medicine, 37:99, 2001 : PubMed
Gamma-hydroxybutyrate was introduced as an anesthetic agent in the 1960s and is still used in some countries, despite recognized disadvantages. More recently, it has emerged as a popular recreational drug. We report 3 cases of gamma-hydroxybutyrate overdose, the effects of which were reversed by the administration of low-dose intravenous physostigmine. The origins of this regimen and the case for physostigmine as a potential antidote are described.
Listeria monocytogenes is a food-borne pathogen with a high mortality rate that has also emerged as a paradigm for intracellular parasitism. We present and compare the genome sequences of L. monocytogenes (2,944,528 base pairs) and a nonpathogenic species, L. innocua (3,011,209 base pairs). We found a large number of predicted genes encoding surface and secreted proteins, transporters, and transcriptional regulators, consistent with the ability of both species to adapt to diverse environments. The presence of 270 L. monocytogenes and 149 L. innocua strain-specific genes (clustered in 100 and 63 islets, respectively) suggests that virulence in Listeria results from multiple gene acquisition and deletion events.