Sistema de administración tópica basada en microesponjas de miconazol para la dermatitis del pañal

Objetivo: La presente investigación tuvo como objetivo desarrollar y optimizar las microesponjas de nitrato de miconazol para el tratamiento de la dermatitis del pañal para un efecto terapéutico mejorado. Material y métodos: Las microesponjas fueron desarrollados por emulsión técnica de difusión del disolvente usando un diseño factorial 23. Las microesponjas fabricadas han sido optimizadas con el fin de analizar los efectos de las variables independientes sobre la eficacia de encapsulación, tamaño de partícula, la topografía de la superficie y en la liberación de fármaco in vitro. A continuación, la formulación optimizada se incorporo en un gel y se evaluó. Resultados: Se encontró que el tamaño de partículas de todas las formulaciones fue uniforme y la microscopía electrónica de barrido (SEM) indicó forma esférica y de naturaleza porosa de las microesponjas. En la liberación del fármaco, estudios in vitro de todas las formulaciones, revelaron la velocidad de liberación dentro de un intervalo de 67±0,09% a 80,6±0,68% al cabo de 12 horas. Con esta base, La formulación F8 se seleccionó y se incorporó en el gel (CF8) en el que se evaluó el pH, viscosidad, capacidad de extensión, estudios de difusión in vitro del fármaco, estudios in vitro anti hongos y estudios de estabilidad. Conclusión: El gel a base de microesponja formulado de nitrato de miconazol sería un sustituto adecuado al tratamiento tradicional para la curación fiable y económica de la dermatitis del pañal.Aim: The current investigation was aimed to develop and optimize the microsponges of miconazole nitrate for treatment of diaper dermatitis for enhanced therapeutic effect. Material and Methods: Microsponges were developed by emulsion solvent diffusion technique using 23 factorial design. Fabricated microsponges were optimized in order to analyze the effects of independent variables on the encapsulation efficiency, particle size, surface topography and in vitro drug release. The optimized formulation was then incorporated into the gel and evaluated. Results: Particle size of all formulations was found to be uniform and scanning electron microscopy (SEM) indicates spherical shape and porous nature of microsponges. In vitro drug release studies of all formulations revealed the release rate within the range of 67%±0.09 to 80.6%± 0.68 at the end of 12 hours. On its basis, formulation F8 was selected and incorporated into the gel (CF8) which was evaluated for pH, viscosity, spreadability, in vitro drug diffusion studies, in vitro anti fungal studies and stability studies. Conclusion: The formulated microsponge-based gel of miconazole nitrate would be a capable substitute to traditional treatment for reliable and economical cure of diaper dermatitis

Fabrication and in vitro characterization of polymeric nanoparticles for Parkinson's therapy: a novel approach

O objetivo da pesquisa foi formular e avaliar nanopartículas de quitosana contendo cloridrato de selegilina para terapia do Parkinson, a fim de melhorar o seu efeito terapêutico e reduzir a frequência de dosagem. Método de Taguchi, de planejamento experimental, (L9 matriz ortogonal) foi usado para obter a formulação otimizada. As nanopartículas de quitosana contendo cloridrato de selegilina (PCHs) foram preparadas por gelificação iônica de quitosana com ânions tripolifosfato (TPP) e Tween 80 como tensoativo. As PCHs apresentaram tamanho médio de (303.39 ± 2,01) nm, potencial zeta de +32.50 mV e eficiência de encapsulação de 86.200±1,38%. A liberação do fármaco in vitro foi avaliada em solução salina de tampão fosfato (pH 5,5), usando a mucosa nasal de cabra e o resultado encontrado foi de 82.529% ± 1.308, acima de 28 h. Estudos de cinética de liberação mostraram que a liberação do fármaco das nanopartículas foi por difusão anômala (não fickiana), indicando que é controlada por mais de um processo, ou seja, a superposição dos fenômenos de difusão controlada e intumescimento. As PCHs mostraram resultados de boa estabilidade, encontrada durante os estudos de estabilidade em temperaturas diferentes, como mencionado em diretrizes do ICH. Os resultados revelaram que o sistema de nanopartículas de quitosana contendo cloridrato de selegilina é o mais adequado sistema de liberação de fármacos de ação terapêutica promissora.The objective of the research was to formulate and evaluate selegiline hydrochloride loaded chitosan nanoparticles for the Parkinson's therapy in order to improve its therapeutic effect and reducing dosing frequency. Taguchi method of design of experiments (L9 orthogonal array) was used to get optimized formulation. The selegiline hydrochloride loaded chitosan nanoparticles (SHPs) were prepared by ionic gelation of chitosan with tripolyphosphate anions (TPP) and tween 80 as surfactant. The SHPs had a mean size of (303.39 ± 2.01) nm, a zeta potential of +32.50mV, and entrapment efficiency of SHPs was 86.200 ± 1.38%. The in vitro drug release of SHPs was evaluated in phosphate buffer saline (pH 5.5) using goat nasal mucosa and found to be 82.529% ± 1.308 up to 28 h. Release kinetics studies showed that the release of drug from nanoparticles was anomalous (non-fickian) diffusion indicating the drug release is controlled by more than one process i.e. superposition of both phenomenon, the diffusion controlled as well as swelling controlled release. SHPs showed good stability results as found during stability studies at different temperatures as mentioned in ICH guidelines. The results revealed that selegiline hydrochloride loaded chitosan nanoparticles are most suitable mode of delivery of drug for promising therapeutic action

Ácido glicirrícico: extracción, cribado y evaluación de la propiedad anti-inflamatoria

The authors wish to thank Founder President Dr. Ashok K. Chauhan, Amity University for his kind support during the researchObjective: Glycyrrhizic acid is a widely used medicinal component as an anti-inflammatory agent, anti ulcer agent, anti-allergy agent and anti-psoriatic agent. The present investigation deals with the extraction of glycyrrhizic acid from licorice roots and evaluating its in-vitro anti inflammatory activity. Methods: Glycyrrhizic acid was extracted using the procedure of maceration. The extract was evaluated for its physicochemical property, biochemical tests and phytochemical properties. The Ii vitro anti- inflammatory activity was evaluated by albumin denaturation technique Results: The results showed that the ash value and the extractive values for the extract were found to be in the limit as given by Ayurvedic Pharmacopoeia of India. Presence of flavonoids, saponins and triterpinoids were identified in the extract from phytochemical parameters. Thin layer chromatographic technique showed a retention value of 0.5 cm. The percentage inhibition showed that the extract is having some potential of healing inflammation. Conclusion: Glycyrrhizic acid was successfully extracted from licorice roots. The evaluation parameters showed the presence of less impurity in the extract, with the potential of having anti-inflammatory property.Objetivo: El ácido glicirrícico es un componente medicinal ampliamente utilizado como agente antiinflamatorio, agente antiulceroso, agente antialérgico y agente anti-psoriásico. La presente investigación trata de la extracción de ácido glicirrícico a partir de raíces de regaliz y la evaluación de su actividad antiinflamatoria in vitro. Métodos: el ácido glicirrícico fue extraído usando el procedimiento de la maceración. El extracto fue evaluado por su propiedad fisicoquímica, pruebas bioquímicas y propiedades fitoquímicas. La actividad antiinflamatoria in vitro fue evaluada por la técnica de desnaturalización de albúmina Resultados: los resultados demostraron que el valor de la ceniza y los valores extractivos para el extracto se encontraron en el valor límite según lo dado por la farmacopea de Ayurveda de la India. La presencia de flavonoides, de saponinas y de triterpenoides fue identificada en el extracto mediante parámetros fitoquímico. La técnica cromatográfica en capa delgada demostró un valor de retención de 0,5 centímetros. La inhibición porcentual mostró que el extracto tiene algún potencial de curación de la inflamación. Conclusión: el ácido glicirrícico fue extraído con éxito de las raíces de regaliz. Los parámetros de evaluación mostraron la presencia de menos impureza en el extracto, con el potencial de tener propiedades antiinflamatorias

Design, development and in vitro characterization of Pioglitazone loaded mucoadhesive buccal devices

Aim: The mucoadhesive buccal patches were developed and evaluated for systemic administration of Pioglitazone in the oral cavity. Pioglitazone belongs to a novel class of oral antidiabetic drugs known as Thiazolidinediones. Materials and Methods: The mucoadhesive buccal patches of Pioglitazone was formulated using Eudragit RS100 and HPMC K4M (mucoadhesive polymer) and were prepared by solvent casting method. Different patch formulations were evaluated for its physical parameters like thickness uniformity, swelling index, surface pH, uniformity of weight, folding endurance, mucoadhesive strength and in vitro parameters like drug content uniformity and drug release studies, and ex vivo parameters like mucoadhesion time. Results: Data for the parameters was found to be: thickness uniformity (0.27±0.45mm); uniformity of weight (40.81±0.66 mg), surface pH (6.5), folding endurance (>300), drug content uniformity (98.58±2.05%), swelling index (131±0.79%), mucoadhesive strength (38.20±1.75), in vitro drug release studies (95.18±1.98%) and ex vivo mucoadhesion, time of optimized formulation (4±1.26 h). The data was also fitted to different kinetic models to illustrate its anomalous (non-fickian) diffusion. Conclusions: The result revealed that Pioglitazone loaded buccal patches was most suitable mode of drug delivery for promising therapeutic action. Buccal patches of Pioglitazone can prove to be potential pharmaceutical dosage form for sustaining the drug release and reducing the dose frequency.Objetivo: Los parches de mucoadherente bucal fueron desarrollados y evaluados por la administración sistémica de la pioglitazona en la cavidad oral. Pioglitazona pertenece a una clase nueva de medicamentos antidiabéticos orales conocida como tiazolidindionas. Material y Método: los parches mucoadherente bucal de pioglitazona fue formulado con Eudragit RS100 y HPMC K4M (polímero mucoadherentes) y fueron elaboradas por el método de fundición solvente. Se evaluaron diferentes formulaciones de parches mediante parámetros físicos como uniformidad de espesor, índice de hinchazón, pH de la superficie, uniformidad de peso, resistencia al plegado, fuerza mucoadherentes y parámetros in vitro como uniformidad de contenido del fármaco y estudios de liberación y estudios ex vivo del tiempo de mucoadhesión del fármaco. Resultados: Los resultados obtenidos para los parámetros estudiados fueron: uniformidad de espesor, 0.27±0.45 mm; uniformidad de peso, 40.81±0.66 mg; pH superficial, 6.5; resistencia al plegado, > 300. Los ensayos in vitro dieron los siguientes resultados: uniformidad de contenido del fármaco, 98.58±2.05%; índice de hinchazón, 131±0.79%; fuerza mucoadherente, 38.20±1.75; y tiempo de liberación del farmaco (95.18±1.98%) y el ensayo ex vivo del tiempo de mucoadhesión del fármaco fue de 4±1.26 h. Los datos también se ajustaron a distintos modelos cinéticos para ilustrar su difusión anómala (no Fickian). Conclusiones: El resultado reveló que los parches bucales de pioglitazona fue el modo más adecuado de fármacos de acción terapéutica prometedora. Los Parches bucales de pioglitazona pueden resultar una potencial forma de dosificación farmacéutica para sostener la liberación del fármaco y reducir la frecuencia de la dosis.The authors are thankful to Panacia Biotec, Baddi (H.P.) India for providing the Pioglitazone as a gift sample. We are also thankful to the Board of Trustees, Bharat Institute of Technology, Meerut, India for providing necessary facilities to carry out this research work

Antioxidant and Antibacterial Potential of Silver Nanoparticles: Biogenic Synthesis Utilizing Apple Extract

The advancement of the biological production of nanoparticles using herbal extracts performs a significant role in nanotechnology discipline as it is green and does not engage harsh chemicals. The objective of the present investigation was to extract flavonoids in the mode of apple extract and synthesize its silver nanoparticles and ultimately nanoparticles loading into hydrogels. The presence of flavonoids in apple extract was characterized by preliminary testing like dil. ammonia test and confirmatory test by magnesium ribbon test. The synthesized silver nanoparticles were characterized using UV spectroscopy, particle size and surface morphology, and zeta potential. Silver nanoparticles loaded hydrogels were evaluated for physical appearance, pH, viscosity, spreadability, porosity, in vitro release, ex vivo permeation, and antibacterial (E. coli and S. aureus) and antioxidant studies (DPPH radical scavenging assay). Well dispersed silver nanoparticles below were observed in scanning electron microscope image. Hydrogels displayed in vitro release of 98.01% ± 0.37% up to 24 h and ex vivo permeation of 98.81 ± 0.24% up to 24 h. Hydrogel effectively inhibited the growth of both microorganism indicating good antibacterial properties. The value of percent radical inhibition was 75.16% ± 0.04 revealing its high antioxidant properties. As an outcome, it can be concluded that antioxidant and antiageing traits of flavonoids in apple extract plus biocidal feature of silver nanoparticles can be synergistically and successfully utilized in the form of hydrogel

Sacrospinous colpopexy versus McCall’s culdoplasty during vaginal hysterectomy in stage 3 and 4 prolapse for prevention of vault prolapse

Background: Pelvic organ prolapse is a common condition seen in women due to weakening of support of pelvic organs. Different surgical procedures have been adopted for suspension of vaginal vault during vaginal hysterectomy to restore vault to near normal anatomic position as preventive measures for vault prolapse. The aim of study was to compare the efficacy of the McCall’s culdoplasty and sacrospinous ligament colpopexy in stage 3 and 4 prolapse (POP-Q).Methods: This prospective study comprised 100 women presenting with stage 3 and 4 prolapse (POP-Q). They were divided into two equal groups of 50 each. The patients were randomized to undergo McCall’s culdoplasty (Group A) or sacrospinous ligament fixation (Group B) with vaginal hysterectomy based on note contained in an envelope comparative analysis was done, and patients were evaluated for intra-operative difficulties and immediate (48 hours) post-operative complications using SPSS-version 23 for statistical analysis. The patients were followed up at one month and one year to evaluate symptomatically and objectively.Results: In group A, patients with 3-degree prolapse 1 woman had hemorrhage and 1 woman had bladder injury intraoperatively. Whereas in group B, 5 women had hemorrhage and 1 woman had rectal injury intraoperatively. All complications were dealt successfully. No other major intra- and post-operative complications occurred.Conclusions: Vaginal hysterectomy with sacrospinous colpopexy resulted in better outcomes after surgery. Hence, it was concluded that unilateral or bilateral SSLF may be added to vaginal hysterectomy in patients of stage 3 or 4 prolapse

DEVELOPMENT AND EVALUATION OF MUCOADHESIVE MICROSPHERES OF LEVOFLOXACIN HYDROCHLORIDE

Levofloxacin microspheres with  mucoadhesive polymers like Sodium Alginate, Sodium Carboxymethyl Cellulose and Carbopol-940 were prepared by w/o emulsification solvent evaporation method and evaluated. The resulting microspheres were small, discrete, spherical and free flowing. The microspheres showed significant mucoadhesive property in the in-vitro wash-off test. The drug release from the mucoadhesive microspheres followed the controlled release profile. and first order kinetics. Drug release was controlled by the diffusion mechanism. Stability studies were performed at three different temperatures for six weeks. All the formulation showed satisfactory stability profile

FORMULATION AND EVALUATION OF NUTRACEUTICAL TABLET USING HERBAL DRURS BY DIRECT COMPRESSION METHOD

Aim: The objective of present study was to formulate and evaluate the nutraceutical tablets with different combination of herbal drugs. Material and Method: The nutraceutical tablet containing lactose and mannitol as diluent and containing natural drugs like clove and cinnamon which was prepared by direct compression method. The compressed formulations were subject to several evaluation parameters like appearance, thickness, weight variation, hardness and friability. Results: The results of all evaluation parameters of nutraceutical tablet were within the acceptable limit. Pre-compression studies of nutraceutical tablet show satisfactory results. The thickness, hardness, weight variation, and friability of nutraceutical tablet were found to in acceptable range. The in-vitro drug release of eugenol from optimised nutraceutical formulation was found to be 90.23%. Significant results were obtained from present study. Discussion: The finding of current investigation clearly found that the health promotion of the body could be done by nutraceuticals. Keywords: Direct compression, Nutraceutical, Eugenol, In-vitro drug release