Sachdev Yadav

Healing Potential of Citrullus Lanatus in Acetic Acid Induced Ulcerated Rats

Healing Potential of Citrullus Lanatus in Acetic Acid Induced Ulcerated Rats An attempt was made to evaluate healing potential of aqueous fruit pulp of Citrullus lanatus (250 mg/kg, 500 mg/kg and 1000 mg/kg p.o.) on acetic acid induced ulcers in albino rats Wistar albino rats were divided in five groups of six animals in each, first group served as control and received vehicle only, second group served as standard and treated with carbenoloxone sodium 100mg/kg of bwtwhile group three, four and five were treated with fruit pulp aqueous fruit pulp extract of C.lanatus (CLE)at doses of 250, 500 and 1000 mg/kg BW, per os respectively, for five days after the induction of ulcer. All the three doses of CLE caused significant reduction in ulcer lesion index in comparison to vehicle treated group, thereby providing evidence for ulcer healing capacity. In addition to this, post treatment with CLE resulted in significant increase in the level of hexoses, sialic acid; enzymic antioxidants i.e. super oxide dismutase (SOD), catalase (CAT), with decrease in lipid peroxidase (LPO) levels. The presence of the flavonoids and polyphenols may be responsible for the gastro-healer effect of CLE and can be used as gastroprotective agent in the therapy of ulcer.

Lipid-polymer hybrid nanoparticles: Development & statistical optimization of norfloxacin for topical drug delivery system

Poly lactic acid is a biodegradable, biocompatible, and non-toxic polymer, widely used in many pharmaceutical preparations such as controlled release formulations, parenteral preparations, surgical treatment applications, and tissue engineering. In this study, we prepared lipid-polymer hybrid nanoparticles for topical and site targeting delivery of Norfloxacin by emulsification solvent evaporation method (ESE). The design of experiment (DOE) was done by using software to optimize the result, and then a surface plot was generated to compare with the practical results. The surface morphology, particle size, zeta potential and composition of the lipid-polymer hybrid nanoparticles were characterized by SEM, TEM, AFM, and FTIR. The thermal behavior of the lipid-polymer hybrid nanoparticles was characterized by DSC and TGA. The prepared lipid-polymer hybrid nanoparticles of Norfloxacin exhibited an average particle size from 178.6 ± 3.7 nm to 220.8 ± 2.3 nm, and showed very narrow distribution with polydispersity index ranging from 0.206 ± 0.36 to 0.383 ± 0.66. The surface charge on the lipid-polymer hybrid nanoparticles were confirmed by zeta potential, showed the value from +23.4 ± 1.5 mV to +41.5 ± 3.4 mV. An Antimicrobial study was done against Staphylococcus aureus and Pseudomonas aeruginosa, and the lipid-polymer hybrid nanoparticles showed potential activity against these two. Lipid-polymer hybrid nanoparticles of Norfloxacin showed the %cumulative drug release of 89.72% in 24 h. A stability study of the optimized formulation showed the suitable condition for the storage of lipid-polymer hybrid nanoparticles was at 4 ± 2 °C/60 ± 5% RH. These results illustrated high potential of lipid-polymer hybrid nanoparticles Norfloxacin for usage as a topical antibiotic drug carriers.

Effect of In Vitro Transcorneal Approach of Aceclofenac Eye Drops through Excised Goat, Sheep, and Buffalo Corneas

The current study involves the evaluation of factors that influence the transcorneal permeation of aqueous drops of aceclofenac ophthalmic formulation through freshly excised goat, sheep, and buffalo corneas. Aceclofenac formulation with different concentrations 0.1–0.5% (w/v) and with different pH and different preservatives, was taken into account. The amount of drug permeated from different formulations was estimated using an Franz diffusion cell. A linear increase in drug permeation was observed with increase in pH (5.5 to 7.4). The apparent permeability coefficient was found to be maximum 15.01 ± 0.45 on goat cornea and maximum transport of aceclofenac was observed at physiological pH of tears (i.e., 7). The results advocate that aceclofenac 0.5% (w/v) ophthalmic solution (pH 7.0) containing BAK (0.01%) provides maximum in vitro ocular permeability through goat, sheep, and buffalo corneas.