The purpose of this study was to fabricate a triple-component nanocomposite system consisting of chitosan, polyethylene glycol (PEG), and drug for assessing the application of chitosan-PEG nanocomposites in drug delivery and also to assess the effect of different molecular weights of PEG on nanocomposite characteristics. The casting/solvent evaporation method was used to prepare chitosan-PEG nanocomposite films incorporating piroxicam-β-cyclodextrin. In order to characterize the morphology and structure of nanocomposites, X-ray diffraction technique, scanning electron microscopy, thermogravimetric analysis, and Fourier transmission infrared spectroscopy were used. Drug content uniformity test, swelling studies, water content, erosion studies, dissolution studies, and anti-inflammatory activity were also performed. The permeation studies across rat skin were also performed on nanocomposite films using Franz diffusion cell. The release behavior of films was found to be sensitive to pH and ionic strength of release medium. The maximum swelling ratio and water content was found in HCl buffer pH 1.2 as compared to acetate buffer of pH 4.5 and phosphate buffer pH 7.4. The release rate constants obtained from kinetic modeling and flux values of ex vivo permeation studies showed that release of piroxicam-β-cyclodextrin increased with an increase in concentration of PEG. The formulation F10 containing 75% concentration of PEG showed the highest swelling ratio (3.42±0.02) in HCl buffer pH 1.2, water content (47.89±1.53%) in HCl buffer pH 1.2, maximum cumulative drug permeation through rat skin (2405.15±10.97 μg/cm2) in phosphate buffer pH 7.4, and in vitro drug release (35.51±0.26%) in sequential pH change mediums, and showed a significantly (p<0.0001) higher anti-inflammatory effect (0.4 cm). It can be concluded from the results that film composition had a particular impact on drug release properties. The different molecular weights of PEG have a strong influence on swelling, drug release, and permeation rate. The developed films can act as successful drug delivery approach for localized drug delivery through the skin.
The present study is focused on the assessment of the medicinal therapeutic potential extracts of H. rosea to investigate their pharmacological implications based upon science proofs. The antioxidant activity of fraction of H. rosea, namely, -hexane (HR-1), ethyl acetate (HR-2), chloroform (HR-3), and -butanol (HR-4), was performed by using the DPPH radical scavenging method. The cytotoxicity and enzyme inhibition assessment were also performed. All the extracts showed significant antioxidant, antibacterial, and protein kinase inhibition but none of the extracts exhibited α-amylase inhibition activity. The chloroform extract HR-3 may block a kinase receptor from binding to ATP; the lead molecule will be isolated, which may stop cancerous cell growth and demotion of cell division. It is predicted that ethyl acetate, chloroform, and -butanol extracts of H. rosea contain polyphenolics, flavonoids, and alkaloids that are biologically effective candidates exhibiting significant cytotoxicity, antioxidant, and antimicrobial activities. They may control oxidative damage in the body tissues and act as potential antidiabetic and anticancer agents. These studies will also be helpful for future drug designing and drug development research.
1 January 2021 in International Journal of Clinical Obstetrics and Gynaecology
Introduction: Induction of labour can be defined as the artificial initiation of labour, before its spontaneous onset, for the purpose of delivery of the fetoplacental unit [1, 2]. It is a commonly performed procedure in obstetrics, with an incidence ranging from 5% to 30% of all pregnancies [3]. Cervical ripening has got a close relationship with the success rate of delivery [4].Materials and Methods: Induction of labour can be defined as the artificial initiation of labour, before its spontaneous onset, for the purpose of delivery of the fetoplacental unit [1, 2]. It is a commonly performed procedure in obstetrics, with an incidence ranging from 5% to 30% of all pregnancies [3]. Cervical ripening has got a close relationship with the success rate of delivery [4].Discussion: In our study, the mean gestational age in group a patients was 38.64 weeks and 38.29 weeks in group b patients. The p value was 0.147.Mode of delivery in group a patients was FTVD in 30% and LSCS in 20%. In group B patients, mode of delivery was FTVD in 29.3% and LSCS in 20.7% patients. P-value was 0.863.Conclusion: Our study concluded with the fact that induction of labour can be equally achieved by both intra cervical foleys catheter and PGE2.