Synthesis, biological evaluation and kinetic studies of glyceride prodrugs of diclofenac.

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dc.contributor.authorKhan, M S Yen_US
dc.contributor.authorAkhter, Mymoonaen_US
dc.date.accessioned2009-05-28T15:09:19Z
dc.date.available2009-05-28T15:09:19Z
dc.date.issued2004-11-14en_US
dc.description.abstractThe prodrugs (glyceride derivatives) 3a and 3b of diclofenac were prepared by reacting 1, 2, 3-trihydroxy propane-1,3-dipalmitate/stearate with the acid chloride of diclofenac as potential prodrugs to reduce the gastrointestinal toxicity associated with them. These prodrugs were evaluated for their ulcerogenicity, anti-inflammatory and analgesic activity. It was found that the prodrugs were significantly less irritating to the gastric mucosa as indicated by severity index of 0.86, 0.78 compared to 1.6 of diclofenac. The prodrugs 3a and 3b showed better anti-inflammatory and analgesic activity than the parent drugs. The hydrolysis of prodrugs 3a and 3b were studied at pH 3, 4, 5 and 7.4. The HPLC analysis showed that the prodrugs were resistant to hydrolysis at pH 3, 4 and 5 indicating that they did not hydrolyze in acidic environment, whereas at pH 7.4 the prodrugs readily released the parent drug in significant quantities. The plasma levels of diclofenac were also analyzed by HPLC in rats after single oral dose of the prodrugs. The results indicated that the parent drugs were readily released. The concentration of diclofenac during the study was found higher in animals treated with prodrugs 3a and 3b compared with animals treated with diclofenac. The concentration of diclofenac was found to be 38.59, 33.6 and 30.36 microg/ml in animals treated with prodrugs 3a, 3b and diclofenac respectively. In conclusion, all these studies indicated that the glyceride prodrugs of diclofenac might be considered as potential biolabile prodrugs of diclofenac.en_US
dc.description.affiliationDepartment of Pharmaceutical Chemistry, Faculty of Pharmacy, Jamia Hamdard, New Delhi, 110 062 India. msykhan@hotmail.comen_US
dc.identifier.citationKhan MS, Akhter M. Synthesis, biological evaluation and kinetic studies of glyceride prodrugs of diclofenac. Indian Journal of Experimental Biology. 2004 Nov; 42(11): 1066-72en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/61624
dc.language.isoengen_US
dc.source.urihttps://www.niscair.res.in/ScienceCommunication/ResearchJournals/rejour/ijeb/ijeb0.aspen_US
dc.subject.meshAcetic Acid --toxicityen_US
dc.subject.meshAnalgesics --chemical synthesisen_US
dc.subject.meshAnimalsen_US
dc.subject.meshAnti-Inflammatory Agents --chemical synthesisen_US
dc.subject.meshCarrageenan --toxicityen_US
dc.subject.meshChromatography, High Pressure Liquiden_US
dc.subject.meshDiclofenac --chemical synthesisen_US
dc.subject.meshEdema --chemically induceden_US
dc.subject.meshGlycerides --chemical synthesisen_US
dc.subject.meshIndicators and Reagents --toxicityen_US
dc.subject.meshKineticsen_US
dc.subject.meshMiceen_US
dc.subject.meshPain --chemically induceden_US
dc.subject.meshProdrugs --chemical synthesisen_US
dc.subject.meshRatsen_US
dc.subject.meshRats, Wistaren_US
dc.subject.meshStomach Ulcer --drug therapyen_US
dc.titleSynthesis, biological evaluation and kinetic studies of glyceride prodrugs of diclofenac.en_US
dc.typeJournal Articleen_US
dc.typeResearch Support, Non-U.S. Gov'ten_US
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