() infection is a significant global health concern, affecting approximately 50% of the world's population and leading to gastric ulcers, gastritis, and gastric cancer. The increase in antibiotic resistance has compromised the efficacy of existing therapeutic regimens, necessitating novel approaches for effective eradication. This study aimed to develop a targeted liposomal drug delivery system incorporating furazolidone and N-acetylcysteine (NAC) to enhance mucopenetration and improve eradication.
View Article and Find Full Text PDFBefore commercialization of a medical device, it is important to evaluate its usability. Traditional methods such as user testing to evaluate usability of medical device encountered difficulties to put participants in simulation conditions that are sufficiently realistic to be representative of real life. Virtual reality can be used to immerse participants in a high-fidelity simulation at a lower cost, but is not widely used today.
View Article and Find Full Text PDFBackground: Mental illness remains a major global health challenge largely due to the absence of definitive biomarkers applicable to diagnostics and care processes. Although remote sensing technologies, embedded in devices such as smartphones and wearables, offer a promising avenue for improved mental health assessments, their clinical integration has been slow.
Objective: This scoping review, following preferred reporting items for systematic reviews and meta-analyses guidelines, explores validation studies of remote sensing in clinical mental health populations, aiming to identify critical factors for clinical translation.
Mucopolysaccharidosis type IIIA (MPS IIIA) is characterized by neurological and skeletal pathologies caused by reduced activity of the lysosomal hydrolase, sulfamidase, and the subsequent primary accumulation of undegraded heparan sulfate (HS). Respiratory pathology is considered secondary in MPS IIIA and the mechanisms are not well understood. Changes in the amount, metabolism, and function of pulmonary surfactant, the substance that regulates alveolar interfacial surface tension and modulates lung compliance and elastance, have been reported in MPS IIIA mice.
View Article and Find Full Text PDFWe present a comprehensive sequence and bioinformatic analysis of the prototypical microcin plasmid, pMccb17, which includes a definitive sequence for the microcin operon, mcb. Microcin B17 (MccB17) is a ribosomally synthesized and posttranslationally modified peptide produced by Escherichia coli. It inhibits bacterial DNA gyrase similarly to quinolone antibiotics.
View Article and Find Full Text PDFPublications abound on the physiology, biochemistry and molecular biology of "anaerobic" protozoal parasites as usually grown under "anaerobic" culture conditions. The media routinely used are poised at low redox potentials using techniques that remove O to "undetectable" levels in sealed containers. However there is growing understanding that these culture conditions do not faithfully resemble the O environments these organisms inhabit.
View Article and Find Full Text PDFConcerns over high transmission risk of SARS-CoV-2 have led to innovation and usage of an aerosol box to protect healthcare workers during airway intubation in patients with COVID-19. However, only a few studies have examined the impact of these aerosol boxes on the dispersion of droplets and aerosols, which are both thought to be significant contributors to the spread of COVID-19. In addition, to our knowledge, only a few studies have included in the concerned testbeds elements of the work context, which nevertheless have an impact on the use of the device.
View Article and Find Full Text PDFIntroduction: Population health surveys are used to record person-reported outcome measures for chronic health conditions and provide a useful source of data when evaluating potential disease burdens. The reliability of survey-based prevalence estimates for chronic diseases is unclear nonetheless. This study applied methodological triangulation via a data linkage method to validate prevalence of selected chronic conditions (angina, myocardial infarction, heart failure, and asthma).
View Article and Find Full Text PDFMucopolysaccharidosis IIIA (MPS IIIA) is a lysosomal storage disease with significant neurological and skeletal pathologies. Respiratory dysfunction is a secondary pathology contributing to mortality in MPS IIIA patients. Pulmonary surfactant is crucial to optimal lung function and has not been investigated in MPS IIIA.
View Article and Find Full Text PDFComb Chem High Throughput Screen
March 2019
Aims And Objectives: Secondary metabolism in marine organisms produces a diversity of biologically important natural compounds that are not present in terrestrial species. Sea cucumbers belong to the invertebrate Echinodermata and are famous for their nutraceutical, medical and food values. They are known for possession triterpenoid glycosides (saponins) with various ecological roles.
View Article and Find Full Text PDFBackground: Malaria remains a global health issue with the burden unevenly distributed to the disadvantage of the developing countries of the world. Poverty contributes to the malaria burden as it has the ability to affect integral aspects of malaria control. There have been renewed efforts in the global malaria control, resulting in reductions in the global malaria burden over the last decade.
View Article and Find Full Text PDFProfiling of extracts from twelve propolis samples collected from eight regions in Nigeria was carried out using high performance liquid chromatography (LC) coupled with evaporative light scattering (ELSD), ultraviolet detection (UV) and mass spectrometry (MS), gas chromatography mass spectrometry (GC-MS) and nuclear magnetic resonance spectroscopy (NMR). Principal component analysis (PCA) of the processed LC-MS data demonstrated the varying chemical composition of the samples. Most of the samples were active against Trypanosoma b.
View Article and Find Full Text PDFExtracts from twelve samples of propolis collected from different regions of Libya were tested for their activity against Trypanosoma brucei, Leishmania donovani, Plasmodium falciparum, Crithidia fasciculata and Mycobacterium marinum and the cytotoxicity of the extracts was tested against mammalian cells. All the extracts were active to some degree against all of the protozoa and the mycobacterium, exhibiting a range of EC50 values between 1.65 and 53.
View Article and Find Full Text PDFFurazolidone has proven to have antiprotozoal and antibacterial activity. A number of literature supported its use against Helicobacter pylori. This potential application opens new prospects of its use in clinical settings in triple therapy.
View Article and Find Full Text PDFThis work aimed to detect Campylobacter species from naturally contaminated turbid pond water by PCR. A total of 16 water samples were collected from a turbid village pond. Four methods of DNA extraction were applied to centrifuge pellets from eight 100 ml pond water samples prior to attempted detection of Campylobacter by PCR without an enrichment step.
View Article and Find Full Text PDFThe design of a hospital, including how the beds are spaced and where clinical areas and supplies are located, affects the amount of time staff spend walking around wards instead of spending time with patients providing direct clinical care. A number of technological solutions are emerging that have the potential to reduce unnecessary walking and give nurses more time to spend with patients. One is the Vocera, a hands-free mobile voice communication system.
View Article and Find Full Text PDFGiardia trophozoites differentiate into infectious cysts (encystment) in response to physiological stimuli; encystment is crucial for Giardia's transmission, survival and pathogenesis. In vitro, Giardia encysts when bile sequesters lipids necessary for this lipid auxotroph, and in vivo they encyst to infect new hosts. In this study, we investigated, for the first time, commitment to encystment in Giardia using both molecular and cellular techniques.
View Article and Find Full Text PDFIn this review, we examine the state-of-the-art technologies (gas and liquid chromatography, mass spectroscopy and nuclear magnetic resonance, etc.) in the well-established area of metabolomics especially as they relate to protozoan parasites.
View Article and Find Full Text PDFBurn injuries are associated with depression. Patients show variable incidence of postburn depression. The purpose of this study was to use anonymized, routinely collected health-related data in Wales (United Kingdom) to estimate the incidence of depression postburns.
View Article and Find Full Text PDFIn view of the interest in genotype-specific pathogenesis in Giardia duodenalis , the aim of the present study was to examine the effects of infection with different, or mixed, G. duodenalis assemblages on the integrity of human intestinal epithelia. To that end, human epithelial cells (HCT-8) were cultured and exposed to different G.
View Article and Find Full Text PDFProgrammed cell death (PCD) has been observed in many unicellular eukaryotes; however, in very few cases have the pathways been described. Recently the early divergent amitochondrial eukaryote Giardia has been included in this group. In this paper we investigate the processes of PCD in Giardia.
View Article and Find Full Text PDFThe increasing prevalence of multi-drug resistant bacteria, such as methicillin-resistant Staphylococcus aureus (MRSA), necessitates development of alternative modes of bacterial targeting which are not hindered by antibiotic resistance and minimise collateral damage. To achieve this, the FliTrx™ bacterially-displayed peptide library was panned against MRSA and randomly selected clones (n = 20) were DNA sequenced. One selected peptide was synthesised as both cyclic and linear constructs.
View Article and Find Full Text PDFThis article describes a pilot telehealth project in Swansea where patients with heart failure and chronic obstructive pulmonary disease were provided with telehealth monitoring equipment. While early evaluation points to some potential economic benefits, supporting patient empowerment was a significant outcome.
View Article and Find Full Text PDFConserv Biol
February 2010
The utility of a species can be divided into its direct, indirect, and options values. In the marine environment, direct consumptive values predominate and often lead to overexploitation at the expense of significant options values derived through bioprospecting for natural products. We surveyed the waters of the Egyptian Red Sea coast (Gulf of Aqaba [north] and the Red Sea [south]) for species of sea cucumbers and analyzed extracts from species for a range of bioactivities with potential biomedical applications.
View Article and Find Full Text PDFPhotodiagnosis Photodyn Ther
June 2007
A femtosecond laser delivering pulses of wavelength 800nm and 124fs duration at rates of 1kHz has been used to investigate the two-photon excited fluorescence in the photosensitizer m-THPC. The scaling of fluorescence amplitude with laser power and fluorescence sidelight imaging are found to support a predominantly two-photon excitation mechanism. A value for the two-photon cross-section of δ=1.
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