AIM A crossover, randomised double blind study was undertaken in 30 healthy volunteers, in order to compare the tolerance of 2% carteolol with and without preservative in short term use. METHODS Complete ophthalmic examinations were performed before and 30, 60, and 180 minutes after instillation of one drop of the solution, and after 3 days of preservative treatment. After a 5 day washout, th...

Bacteria from the Burkholderia cepacia complex (Bcc) are encountered as industrial contaminants, and little is known about the species involved or their mechanisms of preservative resistance. Multilocus sequence typing (MLST) revealed that multiple Bcc species may cause contamination, with B. lata (n = 17) and B. cenocepacia (n = 11) dominant within the collection examined. At the strain level,...

Specimen-to-specimen carryover during ThinPrep slide preparation was evaluated by comparing human papillomavirus genotypes detected prior and subsequent to the ThinPrep processing of 121 PreservCyt samples. Overall, 52 samples generated concordant genotypes and 38 had additional and 21 had fewer genotypes postprocessing. PreservCyt samples should be aliquoted for PCR testing prior to ThinPrep p...

Microbial growth did not occur when cucumbers were preserved without a thermal process by storage in solutions containing acetic acid, sodium benzoate, and calcium chloride to maintain tissue firmness. The concentrations of acetic acid and sodium benzoate required to ensure preservation were low enough so that stored cucumbers could be converted to the finished product without the need to wash ...

5 genetically distinct subtypes of muscarinic acetylcholine receptors have been cloned from human and rat tissues [l, 2 , 31 and these have been dubbed ml, m2, m3, m4 and m5. Each individual subtype has been expressed in animal cells and their pharmacology determined (4). It appears that the pharmacological subtypes Ml, M2 and M3 correspond to the cloned subtypes ml, m2 and m3. However, m4 and ...