The synthesis of racemic cedarmycin B,an antibiotic from Streptomyces sp.TP-A0456 was achieved firstly from γ-butyrolactone.The key step was a Barbier-type add
AIM: To examine if dietary and socio-economic factors contribute to Helicobacter pylori (H pylori) re-infection.METHODS: The population of patients consisted of
AIM:To test whether the expression and activity of H,K-ATPase in parietal cells would be affected by cigarette smoke extract.METHODS: Extracts of cigarette smok