Publications by authors named "Shrestha Sharma"

Article Synopsis
  • - This study assessed gastrointestinal (GI) adverse events linked to immune checkpoint inhibitors (ICIs) using data from two major pharmacovigilance databases, EudraVigilance and VigiAccess, up until November 30, 2023.
  • - Analysis of 76,606 adverse drug reaction (ADR) reports revealed colitis and diarrhea as the most common GI issues, with drugs like nivolumab and pembrolizumab frequently implicated; serious GI events accounted for 87.2% of reports, contributing to a notable number of fatalities.
  • - The findings highlight varying risk profiles among different ICIs, suggesting a need for personalized therapeutic approaches in cancer treatment to better manage these adverse events.
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Unlabelled: The article has been withdrawn at the request of the editor of the journal Current Drug Metabolism. Bentham Science apologizes to the readers of the journal for any inconvenience this may have caused. The Bentham Editorial Policy on Article Withdrawal can be found at https://benthamscience.

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Nitazoxanide (NTZ) is an orally active drug with significant postmarketing experience including more than 75 million adults and children. Presently, this drug is widely used for a number of infectious conditions and diseases. It has a wide range of applications such as antiprotozoal, anthelmintic and antiviral against various types of Gram-positive and Gram-negative bacteria, parasites and certain viruses.

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Neurodegenerative disorders are a result of continuous deterioration of the structure and function of neurons, involving the death of neurons. Neurodegenerative disorders affect millions of people around the world. Several conventional drug delivery strategies are available to treat neurological disorders.

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Parkinson's disease (PD) is believed to be one of the commonly found adult-onset movement disorder occurring due to neurodegeneration and striatal dopamine deficiency. Although clinical diagnosis depends on the occurrence of bradykinesia and other cardinal motor features, PD is linked with many non-motor symptoms that are responsible for overall disability. Among several factors, genetic and environment-related factors are thought to be the major ones accountable for PD.

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Huntington's disease (HD) is a neurodegenerative disease that is genetically inherited through an autosomal dominant gene located on chromosome 4. HD is caused by DNA mutation (generally 37 or more repetition of CAG nucleotides) that leads to an excessive stretch of glutamine residues. However, the main pathogenesis pathway resulted by polyglutamine expansion in mutant HD is unknown.

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Background And Aims: Our study sought to investigate the prevalence of moderately increased albuminuria in United Arab Emirates (UAE) nationals with type 2 diabetes, and to identify the associated factors.

Methods: This prospective cross-sectional study was conducted in two hundred and seven UAE nationals with type 2 diabetes mellitus attending the internal medicine department of a secondary care hospital. Moderately increased albuminuria was estimated in random spot urine samples and was defined as urinary albumin-to-creatinine ratio (UACR) of 3-30 mg/mmoL.

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Article Synopsis
  • Neurological disorders are a leading cause of disability worldwide, with current treatments often limited by the challenges of drug delivery across the blood-brain barrier.
  • Recent advancements in nanomedicine have introduced lipid nanoformulations, like solid lipid nanoparticles (SLNs) and nanostructured lipid carriers (NLCs), to enhance the targeted delivery of CNS drugs by exploiting natural transport mechanisms.
  • This paper discusses how SLNs and NLCs improve drug delivery to neuronal tissues, potentially reducing toxicity and enhancing the effectiveness of novel treatments for neurological disorders.
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The evidence to guide clinicians regarding rationale polytherapy with current antiepileptic drugs (AEDs) is lacking, and current practice recommendations are largely empirical.  The excessive drug loading with combinatorial therapies of existing AEDs are associated with escalated neurotoxicity, and that emergence of pharmacoresistant seizures couldn't be averted. In pursuit of judicious selection of novel AEDs in combinatorial therapies with mechanism based evidences, standardized dose of raloxifene, fluoxetine, bromocriptine and their low dose combinations, were experimentally tested for their impact on maximal electroshock (MES) induced tonic hind limb extension (THLE) in mice.

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Parkinson's disease is caused due to free radical generation in dopamine neurons leading to oxidative stress induced damage. The aim of this work was to ameliorate the free radical induced oxidative stress in rats by using TPGS (Tocopheryl polyethylene glycol 1000 succinate) loaded rutin nanoemulsion after oral administration. For this purpose, pharmacokinetic and pharmacodynamics studies were performed in albino wistar rats.

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The traditional drug delivery techniques are unresponsive to the altering metabolic states of the body and fail to achieve target specific drug delivery, which results in toxic plasma concentrations. In order to harmonize the drug release profiles, diverse biological and pathological pathways and factors involved have been studied and consequently, nanomaterials and nanostructures are engineered in a manner so that they respond and interact with the target cells and tissues in a controlled manner to induce promising pharmacological responses with least undesirable effects. The bioinspired nanoparticles such as carbon nanotubes, metallic nanoparticles, and quantum dots sense the localized host environment for diagnosis and treatment of pathological states.

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Recent advancement in the field of synthesis and application of nanomaterials provided holistic approach for both diagnosis as well as treatment of diseases. Briefly, three-dimensional scaffold and geometry of bioinspired nanocarriers modulate bulk properties of loaded drug at molecular/ atomic structures in a way to conjointly modulate pathological as well as altered metabolic states of diseases, in very predictable and desired manners at a specific site of the target. While, from the pharmacotechnical point of views, the bioinspired nanotechnology processes carriers either favor to enhance the solubility of poorly aqueous soluble drugs or enable well-controlled sustained release profiles, to reduce the frequency of drug regimen.

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Purpose: Oxidative stress is the leading cause in the pathogenesis of Parkinson's disease. Rutin is a naturally occurring strong antioxidant molecule with wide therapeutic applications. It suffers from the problem of low oral bioavailability which is due to its poor aqueous solubility.

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Resveratrol, a potent natural antioxidant, possesses a wide range of pharmacological activities, but its oral bioavailability is very low due to its extensive hepatic and presystemic metabolism. The aim of the present study was to formulate a kinetically stable nanoemulsion (o/w) using vitamin E:sefsol (1:1) as the oil phase, Tween 80 as the surfactant and Transcutol P as the co-surfactant for the better management of Parkinson's disease. The nanoemulsion was prepared by a spontaneous emulsification method, followed by high-pressure homogenization.

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Article Synopsis
  • * The review outlines studies that highlight resveratrol's diverse pharmacological activities and discusses the challenges in its drug development, such as issues with solubility and stability.
  • * Experts believe that advancements in drug delivery systems could enhance the effectiveness and safety of resveratrol, positioning it as a leading option for disease treatment.
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Article Synopsis
  • * The study compared two methods for creating rutin-loaded nanoemulsions: spontaneous emulsification and high-pressure homogenization (HPH), with HPH yielding smaller droplet sizes and better drug release rates.
  • * Results showed that the optimized HPH formulation improved the solubility and permeability of rutin significantly, and also exhibited enhanced antioxidant and anti-inflammatory effects compared to routine suspension.
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Article Synopsis
  • Natural compounds like bioflavonoids, particularly rutin, are gaining attention in healthcare for their diverse biological activities, safety, and affordability.
  • Rutin is noted for its antioxidant properties and has potential in treating chronic diseases like cancer, diabetes, and hypertension, making it a beneficial alternative to other flavonoids.
  • The review discusses studies on rutin’s pharmacological benefits and suggests improving its oral bioavailability through advanced drug delivery methods to enhance its therapeutic application.
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Introduction: Betamethasone dipropionate (BD) has anti-inflammatory, immunomodulatory, and antiproliferative activity. The aim of the current work was to test the hypothesis that the addition of corticosteroid such as BD and a keratolytic agent such as salicylic acid in nanocarrier based microemulsions formulation would result in enhancement and sustaining of corticosteroid delivery rate leading to better anti-psoriatic activity. Clinical use of BD is restricted to some extent due to its poor permeability across the skin.

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