diclofenac sodium as ophthalmic dosage form is used in patients treatment of eye pain, swelling and redness recovering from cataract surgery but it faces the bioavailability limitation of eye drops due to effective protective mechanisms and corneal barrier functions in the eyes. therefore, this investigation was aimed to develop ocular film formulations to achieve controlled drug release. drug ...

this paper reviews the use of texture analysis in studying the performance of hydrophilic matrices of highly soluble drugs and different types of excipients (i.e. water-soluble, water-insoluble and swellable, and water insoluble and non-swellable). tablets were prepared by direct compression, and their swelling and erosion in presence of these different excipients were assessed with the help of...

human serum albumin (hsa) is the most abundant plasma protein in the human body. hsa plays an important role in drug transport and metabolism. this protein has a high affinity to a very wide range of materials, including metals such as cu2+ and zn2+, fatty acids, amino acids and metabolites such as bilirubin and many drug compounds. in this study, we investigated the effects of co-amoxiclav, as...

HL60 cells isolated for resistance to Adriamycin are multidrug resistant and defective in the cellular accumulation of drug. These cells do not contain detectable levels of P-glycoprotein. At the present time the mechanism by which HL60/Adr cells reduce drug levels is not known. To gain insight into the molecular basis of this system we have analyzed transport pathways and the distribution of d...

Objective(s) Physiological changes in the body may be utilized as potential triggers for controlled drug delivery. Based on these mechanisms, stimulus-responsive drug delivery has been developed. Materials and Methods In this study, a kind of poly (N-isopropylacrylamide-acrylamide) membrane was prepared by radical copolymerization. Changes in swelling ratios and diameters of the membrane wer...

Multidrug resistance (MDR) is a complex phenomenon in which many different genes regulating drug transport, cellular repair, detoxification and drug metabolism are involved. Nevertheless, in most drug resistant cell lines and cancer patients up-regulation of ABC-transporter genes such as MDR associated Protein (MRP1) gene could be at the basis of the drug resistance phenotype. We aimed to decre...