title: Chemotherapeutic potential of orally administered poly(lactide-co-glycolide) microparticles containing isoniazid, rifampin, and pyrazinamide against experimental tuberculosis.
abstract: Poly(lactide-co-glycolide) (PLG) microspheres (diameter, less than 3 microm) containing isoniazid, rifampin, and pyrazinamide were used in a sustained oral drug delivery system to treat murine tuberculosis. Drug levels above the MIC were observed up to 72 h in plasma and for 9 days in various organs. Relative bioavailability of encapsulated drugs was greater than that of free drugs. Chemotherapy results showed better or equivalent clearance of bacilli in the PLG-drug-administered group (weekly) than with free drugs (daily).
authors.affiliation: Department of Biochemistry, Postgraduate Institute of Medical Education & Research, Chandigarh 160 012, India.
authors.forename: Qurrat
authors.initials: Q
authors.lastname: Ul-Ain
authors.forename: Sadhna
authors.initials: S
authors.lastname: Sharma
authors.forename: G K
authors.initials: GK
authors.lastname: Khuller
mesh_terms: D000818:Animals; D000904:Antibiotics, Antitubercular / Q000008:administration & dosage* / Q000493:pharmacokinetics / Q000627:therapeutic use*; D000995:Antitubercular Agents / Q000008:administration & dosage* / Q000493:pharmacokinetics / Q000627:therapeutic use*; D019540:Area Under Curve; D001672:Biocompatible Materials; D001682:Biological Availability; D002214:Capsules; D004338:Drug Combinations; D004339:Drug Compounding; D007538:Isoniazid / Q000008:administration & dosage* / Q000493:pharmacokinetics / Q000627:therapeutic use*; D019344:Lactic Acid; D051379:Mice; D011100:Polyglycolic Acid; D000077182:Polylactic Acid-Polyglycolic Acid Copolymer; D011108:Polymers; D011718:Pyrazinamide / Q000008:administration & dosage* / Q000493:pharmacokinetics / Q000627:therapeutic use*; D012293:Rifampin / Q000008:administration & dosage* / Q000493:pharmacokinetics / Q000627:therapeutic use*; D014018:Tissue Distribution; D014397:Tuberculosis, Pulmonary / Q000188:drug therapy* / Q000382:microbiology
chemical_list: D000904:Antibiotics, Antitubercular; D000995:Antitubercular Agents; D001672:Biocompatible Materials; D002214:Capsules; D004338:Drug Combinations; D011108:Polymers; D000077182:Polylactic Acid-Polyglycolic Acid Copolymer; D011100:Polyglycolic Acid; D011718:Pyrazinamide; D019344:Lactic Acid; D007538:Isoniazid; D012293:Rifampin