58 research outputs found

    A recent review on Nanoemulsion as a topical delivery system of antipsoriatic drugs

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    Psoriasis and psoriatic arthritis are a chronic skin disease of autoimmune system that is identified as patches of abnormal skin, affecting 2-5% of the world’s population. Psoriasis is an incurable lifetime disease which can be controlled and relieved through medication. Various approaches have been explored to treat the disease. Treatment of psoriasis includes topical therapy, systemic therapy and phototherapy. Topical therapy is the main psoriasis treatment. However, the conventional topical treatment such as gel and cream have low efficiency to  poor cosmetic and aesthetic appeal leading to poor patient compliance or adherence. Nanoemulsions are transparent or translucent dispersions, having the droplet size less than 100 nm with ultra-low interfacial tension, large o/w interfacial areas and long term physical stability recently, much attention has been paid to the application of Nano emulsion as drug delivery system. A small droplet size would enhance the drug delivery and penetration of a drug through the psoriasis skin layer. A good selection of oils and surfactants would enhance the transdermal treatment efficacy in psoriatic patient. Keywords: Nano emulsion topical drug delivery, psoriatic treatmen

    A Review on Topical Gels as Drug Delivery System

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    The clinical evidence indicates that topical gel is a safe and most effective treatment option for use in the management of skin related disease and used for local action to reduce the side effects associated with other conventional dosage form. Topical drug delivery systems include a large variety of pharmaceutical dosage form like semisolids, liquid preparation, sprays and solid powders. Most widely used semisolid preparation for topical drug delivery includes gels, creams and ointments. A gel is a cross-linked polymer network swollen in a liquid medium. Its properties depend strongly on the interaction between solid state polymer and the liquid component. Gels exhibit no steady-state flow. The interaction between polymer and the liquid dispersion medium form an interlacing three dimensional network of particles of dispersed phase. The increased viscosity caused by interlacing and consequential internal friction is responsible for the semisolid state. Topical gel formulation provides a suitable delivery system for drugs because they are less greasy and can be easily removed from the skin. Gel formulation provides better application property and stability in comparison to cream and ointments. Keywords: Topical, drug delivery, gels, review, skin. Percutaneous penetration, drug delivery, organogels, Hydrogel

    Floating type drug delivery system: a review

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    Floating Type drug delivery system retains the dosage form for a long span. They provide local delivery to specific region like stomach and proximal small intestine and shows better bioavailability and improve therapeutic activity and substantial benefit to patients. FDDS is one of the novel drug delivery system to prolong gastric retention time. Various forms of gastro retentive drug delivery system, such as floating and non- floating. Keywords: Floating Drug Delivery System, Classification effervescent, non-effervescent, and Factors affecting FDDS

    Current Challenges in Non-Invasive Insulin Drug Delivery System: A Review

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    The Frederick Banting and Charles Best extracted insulin from bovine pancreas in 1922, who received the Nobel prize for their contribution in the medical field with Johan McLeod, The gastrointestinal tract (GIT) is the route of choice for the administration of most drugs, regardless of their molecular structure or weight and administration of insulin exogenously via subcutaneous route which mimic the pancreatic insulin secretion, for In todays era, insulin delivery by noninvasive route is an area of current interest in diabetes mellitus treatment by parenteral route for type-I and type-II diabetes mellitus , while noninvasive therapy through oral delivery is greatly desired, there are challenges that include the low bioavailability due to the rapid enzymatic degradation in the stomach. This review article patent that provides the novel approaches for noninvasive insulin drug delivery system to the bloodstream through the go tract. Keywords: Diabetes mellitus, insulin, non-invasive insulin drug delivery, modern insulin drug delivery, absorption enhancer, insulin pump

    Seismic assesement of masonry infill RC framed building with soft ground floor

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    Construction of multistoried buildings with open ground floor is a common trend of urbanization of cities of many parts of many countries. Social and functional need to provide parking space at ground level outweighs the seismic vulnerability of such buildings. Generally these buildings are designed as RC framed structures without regards to structural action of masonry infill walls present in the upper floors. In the present paper an investigation has been made to study the behavior of RC frames with various arrangement of infill when subjected to dynamic earthquake loading. Result of bare and infill frame are compared and somem conclusions are made in view of IS -1893(2002) code

    Use of eHealth platforms and apps to support monitoring and management of home-quarantined patients with COVID-19 in the province of Trento, Italy: app development and implementation

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    Background: Italy was the first country to largely experience the COVID-19 epidemic among other Western countries during the so-called first wave of the COVID-19 pandemic. Proper management of an increasing number of home-quarantined individuals created a significant challenge for health care authorities and professionals. This was especially true when considering the importance of remote surveillance to detect signs of disease progression and consequently regulate access to hospitals and intensive care units on a priority basis. Objective: In this paper, we report on an initiative promoted to cope with the first wave of the COVID-19 epidemic in the Spring/Summer of 2020, in the Autonomous Province of Trento, Italy. A purposefully built app named TreCovid19 was designed to provide dedicated health care staff with a ready-to-use tool for remotely monitoring patients with progressive symptoms of COVID-19, who were home-quarantined during the first wave of the epidemic, and to focus on those patients who, based on their self-reported clinical data, required a quick response from health care professionals. Methods: TreCovid19 was rapidly developed to facilitate the monitoring of a selected number of home-quarantined patients with COVID-19 during the very first epidemic wave. The app was built on top of an existing eHealth platform, already in use by the local health authority to provide home care, with the following functionalities: (1) to securely collect and link demographic and clinical information related to the patients and (2) to provide a two-way communication between a multidisciplinary health care team and home-quarantined patients. The system supported patients to self-assess their condition and update the multidisciplinary team on their health status. The system was used between March and June 2020 in the province of Trento. Results: A dedicated multidisciplinary group of health care professionals adopted the platform over a period of approximately 3 months (from March-end to June 2020) to monitor a total of 170 patients with confirmed COVID-19 during home quarantine. All patients used the system until the end of the initiative. The TreCovid19 system has provided useful insights of possible viability and impact of a technological–organizational asset to manage a potentially critical workload for the health care staff involved in the periodic monitoring of a relevant number of quarantined patients, notwithstanding its limitations given the rapid implementation of the whole initiative. Conclusions: The technological and organizational model adopted in response to the COVID-19 pandemic was developed and finalized in a relatively short period during the initial few weeks of the epidemic. The system successfully supported the health care staff involved in the periodic monitoring of an increasing number of home-quarantined patients and provided valuable data in terms of disease surveillance

    Search for gravitational waves from Scorpius X-1 in the second Advanced LIGO observing run with an improved hidden Markov model

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    We present results from a semicoherent search for continuous gravitational waves from the low-mass x-ray binary Scorpius X-1, using a hidden Markov model (HMM) to track spin wandering. This search improves on previous HMM-based searches of LIGO data by using an improved frequency domain matched filter, the J-statistic, and by analyzing data from Advanced LIGO's second observing run. In the frequency range searched, from 60 to 650 Hz, we find no evidence of gravitational radiation. At 194.6 Hz, the most sensitive search frequency, we report an upper limit on gravitational wave strain (at 95% confidence) of h095%=3.47×10-25 when marginalizing over source inclination angle. This is the most sensitive search for Scorpius X-1, to date, that is specifically designed to be robust in the presence of spin wandering. © 2019 American Physical Society

    Search for Tensor, Vector, and Scalar Polarizations in the Stochastic Gravitational-Wave Background

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    The detection of gravitational waves with Advanced LIGO and Advanced Virgo has enabled novel tests of general relativity, including direct study of the polarization of gravitational waves. While general relativity allows for only two tensor gravitational-wave polarizations, general metric theories can additionally predict two vector and two scalar polarizations. The polarization of gravitational waves is encoded in the spectral shape of the stochastic gravitational-wave background, formed by the superposition of cosmological and individually unresolved astrophysical sources. Using data recorded by Advanced LIGO during its first observing run, we search for a stochastic background of generically polarized gravitational waves. We find no evidence for a background of any polarization, and place the first direct bounds on the contributions of vector and scalar polarizations to the stochastic background. Under log-uniform priors for the energy in each polarization, we limit the energy densities of tensor, vector, and scalar modes at 95% credibility to Ω0T<5.58×10-8, Ω0V<6.35×10-8, and Ω0S<1.08×10-7 at a reference frequency f0=25 Hz. © 2018 American Physical Society
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