Protein- and RNA-synthesis independent bactericidal activity of ciprofloxacin that involves the A subunit of DNA gyrase.

Ofloxacin, a bactericidal antibacterial.

Loss of ciprofloxacin's second killing action in Escherichia coli that have developed 4-quinolone resistance during therapy.

Absence of a gastrin inhibitory factor in the IgG fraction of serum from patients with pernicious anaemia.

4-quinolones and multivalent ions.

Conditions required for the bactericidal activity of 4-quinolones against Serratia marcescens.

Inappropriate hypergastrinaemia in asymptomatic healthy subjects infected with Helicobacter pylori.

Clofibrate raises human 24 h intragastric acidity but does not affect plasma gastrin concentration.

Sufotidine 600 mg bd virtually eliminates 24 hour intragastric acidity in duodenal ulcer subjects.

DNA breakdown by the 4-quinolones and its significance.