Background: There is no known effective pharmacological therapy for long COVID, which is characterized by wide-ranging, multisystemic, fluctuating, or relapsing symptoms in a large proportion of survivors of acute COVID. This randomized controlled trial aims to assess the safety and efficacy of an anti-inflammatory agent colchicine, to reduce symptoms among those at high risk of developing long COVID.
Methods: This multi-centre, parallel arm, 1:1 individual randomized, placebo-controlled, double-blind superiority trial will enrol 350 individuals with persistent post-COVID symptoms.
Purpose: To systematically review the typology, impact, quality of evidence, barriers, and facilitators to implementation of Quality Improvement (QI) interventions for adult critical care in low- and middle-income countries (LMICs).
Methods: MEDLINE, EMBASE, Cochrane Library and ClinicalTrials.gov were searched on 1st September 2022.
docking studies serve as a swift and efficient means to sift through a vast array of natural and synthetic small molecules, aiding in the identification of potential inhibitors for cancer biomarkers. One such biomarker, ceruloplasmin (CP), has been implicated in various tumor types due to its overexpression, earning it recognition as a marker of aggressive tumors. This study focused on pinpointing inhibitors for the CP -Myeloperoxidase (MPO) interaction site, a complex formation known to impede HOCl production, a crucial process for inducing apoptotic cell death in tumor cells.
View Article and Find Full Text PDFHead and neck squamous cell carcinoma (HNSCC) is among the most common cancer worldwide, accounting for hundreds thousands deaths annually. Unfortunately, most patients are diagnosed in an advanced stage and only a percentage respond favorably to therapies. To help fill this gap, we hereby propose a retrospective in silico study to shed light on gene-miRNA interactions driving the development of HNSCC.
View Article and Find Full Text PDFDiagnosis and treatment of lung diseases pose serious challenges. Currently, diagnostic as well as therapeutic methods show poor efficacy toward drug-resistant bacterial infections, while chemotherapy causes toxicity and nonspecific delivery of drugs. Advanced treatment methods that cure lung-related diseases, by enabling drug bioavailability via nasal passages during mucosal formation, which interferes with drug penetration to targeted sites, are in demand.
View Article and Find Full Text PDFQuercetin is a naturally occurring bioactive flavonoid abundant in many plants and fruits. Quercetin and its derivatives have shown an array of pharmacological activities in preclinical tests against various illnesses and ailments. Owing to its protective role against oxidative stress and neuroinflammation, quercetin is a possible therapeutic choice for the treatment of neurological disorders.
View Article and Find Full Text PDFBMJ Open
June 2022
Objectives: To determine whether hydroxychloroquine when used with personal protective equipment reduces the proportion of laboratory-confirmed COVID-19 among healthcare workers in comparison to the use of personal protective equipment alone.
Design: Multicentre, parallel-group, open-label randomised trial. Enrolment started on 29 June 2020 and stopped on 4 February 2021.
Recent mounting evidence has revealed extensive genetic heterogeneity within tumors that drive phenotypic variation affecting key cancer pathways, making cancer treatment extremely challenging. Diverse cancer types display resistance to treatment and show patterns of relapse following therapy. Therefore, efforts are required to address tumor heterogeneity by developing a broad-spectrum therapeutic approach that combines targeted therapies.
View Article and Find Full Text PDFReactive oxygen species (ROS) are important in regulating normal cellular processes whereas deregulated ROS leads to the development of a diseased state in humans including cancers. Several studies have been found to be marked with increased ROS production which activates pro-tumorigenic signaling, enhances cell survival and proliferation and drives DNA damage and genetic instability. However, higher ROS levels have been found to promote anti-tumorigenic signaling by initiating oxidative stress-induced tumor cell death.
View Article and Find Full Text PDFTrials
August 2020
Objectives: To evaluate the effect of the combination of hydroxychloroquine (HCQ) and standard personal protective equipment (PPE) compared to the use of standard personal protective equipment alone on the proportion of laboratory confirmed COVID-19 infections among frontline healthcare workers(HCWs) in India TRIAL DESIGN: HOPE is an investigator initiated multi-centre open-label parallel group randomized controlled trial.
Participants: All HCWs currently working in an environment with direct exposure to patients with confirmed COVID-19 infection are eligible to participate in the trial. The trial aims to be conducted across 20-30 centres (public and private hospitals) in India.
Background & Objectives: The potential benefits of mobile health (mHealth) initiatives to manage the coronavirus disease 2019 (COVID-19) pandemic have been explored. The Government of India, State governments, and healthcare organizations have developed various mobile apps for the containment of COVID-19. This study was aimed to systematically review COVID-19 related mobile apps and highlight gaps to inform the development of future mHealth initiatives.
View Article and Find Full Text PDFObjective: This study was conducted to estimate the prevalence of infection in pigeon and determination of spatial factors related with infection among smallholder farms at Abhaynagar and Monirampur Upazillas, Jessore District, Bangladesh.
Materials And Methods: This cross-sectional study has undertaken from November 24, 2017 to February 28, 2018 on randomly selected 60 pigeons from 12 smallholder farms. Wet smear technique has been used to identify , from swab samples collected from oropharynx and crop of the sampled birds.
Non-enzymatic glycation and Oxidation of some essential biological macromolecules are paramount in the pathogenesis of various diseases including diabetes and atherosclerosis. Hyperglycemia plays a key role in the pathological process of diabetic complications by progressive accumulation of advanced glycation end products (AGEs) in body tissues. Formation of AGEs as a result of protein glycation is followed by an increased free radical activity that additionally contributes towards the bio-macromolecular damage.
View Article and Find Full Text PDFIEEE Trans Biomed Circuits Syst
February 2012
In this paper, we present a novel energy-efficient electrode stimulator. Our stimulator uses inductive storage and recycling of energy in a dynamic power supply. This supply drives an electrode in an adiabatic fashion such that energy consumption is minimized.
View Article and Find Full Text PDFWe introduce a novel wireless, low-power neural stimulation system for use in freely behaving animals. The system consists of an external transmitter and a miniature, implantable wireless receiver-stimulator. The implant uses a custom integrated chip to deliver biphasic current pulses to four addressable bipolar electrodes at 32 selectable current levels (10 microA to 1 mA).
View Article and Find Full Text PDFTranscriptional activities of closely spaced divergent promoters are affected by the accumulation of local negative superhelicity in the region between transcribing RNA polymerase molecules (transcriptional coupling). The effect of this transcription-induced DNA supercoiling on these promoters depends on their intrinsic properties. As the global superhelical density of the chromosome is controlled by the energy charge of the cell, which is affected by environmental stresses and transitions from one growth state to another, the transcriptional coupling that occurs between divergently transcribed promoters is likely to serve a physiological purpose.
View Article and Find Full Text PDFWe have used nylon membranes spotted in duplicate with full-length polymerase chain reaction-generated products of each of the 4,290 predicted Escherichia coli K12 open reading frames (ORFs) to measure the gene expression profiles in otherwise isogenic integration host factor IHF(+) and IHF(-) strains. Our results demonstrate that random hexamer rather than 3' ORF-specific priming of cDNA probe synthesis is required for accurate measurement of gene expression levels in bacteria. This is explained by the fact that the currently available set of 4,290 unique 3' ORF-specific primers do not hybridize to each ORF with equal efficiency and by the fact that widely differing degradation rates (steady-state levels) are observed for the 25-base pair region of each message complementary to each ORF-specific primer.
View Article and Find Full Text PDFThe N-end rule relates the in vivo half-life of a protein to the identity of its N-terminal residue. In both fungi and mammals, the tertiary destabilizing N-terminal residues asparagine and glutamine function through their conversion, by enzymatic deamidation, into the secondary destabilizing residues aspartate and glutamate, whose destabilizing activity requires their enzymatic conjugation to arginine, one of the primary destabilizing residues. We report the isolation and analysis of a mouse cDNA and the corresponding gene (termed Ntan1) that encode a 310-residue amidohydrolase (termed NtN-amidase) specific for N-terminal asparagine.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
August 1995
Using partial amino acid sequence data derived from porcine methionyl aminopeptidase (MetAP; methionine aminopeptidase, peptidase M; EC 3.4.11.
View Article and Find Full Text PDFCo- and post-translational amino-terminal processing of proteins is one mechanism by which intracellular proteins can be either protected from or targeted to degradation by the N-end Rule pathway (Bachmair, A., Finley, D., and Varshavsky, A.
View Article and Find Full Text PDFAn apparently unique enzyme, designated protein NH2-terminal asparagine deamidase (PNAD), that specifically converts NH2-terminal asparagine residues of peptide and protein substrates to aspartic acid, has been isolated to homogeneity from porcine liver by an eight-step procedure. PNAD is a relatively low abundance protein, is readily solubilized, and exists as a monomeric species of approximately 33 kDa. PNAD does not act on internal asparagine residues and requires a free N alpha-amino group.
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