Posted by admin on Nov 30, 2020 in |
Medicine has been a noble profession since time immemorial. Many cultures have the view that it is linked with the supernatural deity. The persons were priests in many civilizations. They had high status in Society. They were considered as a medium of communication between the supernatural and were assumed to have powers. In those times, those priests used rituals and follow some religious code of conduct for treatment. This was the primitive stage of ethics as a part of religious ritual. Latter with observations, many folk traditional medicine ethics were created in a teacher-student relationship. Further traditional medicine like Ayurveda, TCM, Korean developed, which had mutual interactions in ideology and philosophy. It was evident with the review of these studies and also had a diverse set of rules entertaining behavioral and professional codes for prescriber health care worker and patient for providing rational and safe delivery of health services. However, with the separation of medical science from religion, the positive philosophical background and the behavioral element lost its ground....
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Posted by admin on Nov 30, 2020 in |
The aim of this study was to prepare a suitable mucoadhesive in-situ gel formulation of clotrimazole for the treatment of vaginal candidiasis. The in-situ gel-forming systems are viscous liquids that turn to a gel phase upon exposure to physiological conditions. The lower retention of conventional formulations in the vagina, mucoadhesive formulations would prolong the retention time. For this study mixture of poloxamer (Plx) 407 and 188 were used. 32 full factorial design was applied for the optimization. Selected independent variables were concentration of carbopol 974 (X1), and Hydroxypropyl methylcellulose (HPMC) E50 (X2) was added to in situ gel for improve the mucoadhesive properties of the formulation, and prolong the residence time in vaginal cavity. Selected dependent variables were viscosity (Y1) release at 1 h (Y2), release at 12 h (Y3). After the preparation of mucoadhesive in-situ gels, gelation temperature/time, viscosity, mucoadhesive strength, spreadability, drug content, in-vitro drug release, and in-vitro antimicrobial efficacy were determined. Based on the obtained results and according to desirability, it was found that gel prepared...
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Posted by admin on Nov 30, 2020 in |
Antimicrobial peptides are considered as promising and potential next-generation antibiotics on account of their broad spectrum of antimicrobial activity and unique mode of microbial killing. For therapeutic application, it is essential to consider the hemolytic or cytotoxic property of AMPs along with antimicrobial function. In the current study, an avian beta-defensin 7 (AvBD7) gene was identified from Corvus splendens. The predicted amino acid sequence showed the presence of β defensin core motif and three disulphide bridges. We analysed the interaction of wild and mutant analogues of mature Corvus AvBD7 dimer with neutral 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) that mimics mammalian membranes using molecular dynamics simulation studies. Hydrophobic residues at the N-terminus of each monomer were found to provide stability in the dimeric form. In both monomer and dimer, Asp3 and Asp4 interact with Tyr40 and Ser41 thereby helping in maintaining a claw shape at the C-terminus. During simulation, we found that the C-terminus claw region of wild dimer remained intact than its mutant analogs, and also wild AvBD7 exhibited a greater propensity...
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Posted by admin on Nov 30, 2020 in |
Preparation and evaluation of dikamali gum-based microspheres of Flurbiprofen, needed a suitable bioanalytical method. In this direction, we report the development of a simple RP-HPLC method for the determination of Flurbiprofen in rabbit plasma samples by using the standard internal method. The method was carried out on RP C18 column, with a mixture of the buffer: acetonitrile (60:40) as the mobile phase. The linearity was found to be in the range of 83.90-99.45%. The half-life of drug was 4.7-5.7 h. The developed method was validated as per USFDA guidelines and used in the estimation of Flurbiprofen microspheres on oral administration in rabbits. It was observed that the Tmax and AUC of Flurbiprofen was 3 h, 114.24 mcg.hr/ml for the marketed formulation, and 9 h and 213.03 mcg.hr/ml for test formulation, respectively. The pharmacokinetic parameters of the test formulation showed delayed Tmax, decreased Cmax, and increased area under the curve (AUC) as compared to the reference formulation. This indicated that Flurbiprofen was not released significantly in the stomach and small...
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Posted by admin on Oct 31, 2020 in |
In the recent progressive era of pharmaceutical technology, newly investigated most of the drugs come under BCS class II and IV having low solubility as well bioavailability. The drugs are not suitable candidate for the conventional oral delivery of drug. The reason is that the drugs are not able to dissolve in aqueous environment of GI (gastrointestinal) tract. Poor water solubility of drug is challenging to deliver orally. Lipid-based drug delivery systems (LBDDS) is emerging technologies to delivered the drug orally by dissolving, dispersing or encapsulating drugs in lipidic excipient and ultimately results in improvement in bioavailability. This review focus on different types of excipients used in the formulation of LBDDS and digestion and solubilisation of lipid-based formulation in body. This review also focuses on the conversion of liquid dispersion into solid particles of lipid for oral delivery of drug. Different types of lipid-based carriers which are useful for the development of lipid-based delivery are briefly described in this...
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