Background: Epidermolysis bullosa (EB) is a rare genodermatosis that results in extreme skin fragility, for which there is no cure and may be fatal. The quality of life of patients affected may be greatly impacted.
Aim: This study aims to understand the lived experiences of patients with EB.
Background: Epidermolysis bullosa (EB) is a rare, incurable genodermatosis that presents with blistering and skin fragility. Complications can be localised or generalised, limited to the skin or have systemic effects resulting in death. Caring for a child with this painful condition can have a profound effect on the quality of life of parents and the family.
View Article and Find Full Text PDFPurpose: The tumor microenvironment (TME) is composed of various stromal components, including immune cells such as tumor-associated macrophages (TAMs), which play a crucial role in cancer initiation and progression. TAMs can exhibit either a tumor-suppressive M1 or a tumor-promoting M2 phenotype. First, we aimed to develop a 3D human heterotypic model consisting of head and neck squamous cell carcinoma (HNSCC) cells and different subtypes of macrophages to replicate the interactions between immune cells and cancer cells.
View Article and Find Full Text PDFBackground: Epidermolysis bullosa (EB) is a painful genodermatosis presenting with skin fragility and blisters. There is no cure; the prognosis is guarded and depends on the subtype of the disease. Managing these patients can be emotionally challenging for healthcare practitioners.
View Article and Find Full Text PDFBacillus cereus is a food-borne Gram-positive pathogen. The emetic reference strain B. cereus AH187 is surrounded by a proteinaceous surface layer (S-layer) that contributes to its physico-chemical surface properties, and promotes its adhesion in response to starvation conditions.
View Article and Find Full Text PDFBackground: Epidermolysis bullosa (EB) is a rare, incurable genodermatosis causing blisters that can result in multisystemic complications and death. Limited data exists on EB in South Africa. Research indicates that the majority of African patients consult traditional health practitioners (THPs) before seeking allopathic healthcare.
View Article and Find Full Text PDFGlioblastoma (GBM) is the most difficult brain cancer to treat, and photodynamic therapy (PDT) is emerging as a complementary approach to improve tumor eradication. Neuropilin-1 (NRP-1) protein expression plays a critical role in GBM progression and immune response. Moreover, various clinical databases highlight a relationship between NRP-1 and M2 macrophage infiltration.
View Article and Find Full Text PDFPurpose: This study aimed to evaluate the radiosensitizing potential of Au@DTDTPA(Gd) nanoparticles when combined with conventional external X-ray irradiation (RT) to treat GBM.
Methods: Complementary biological models based on U87 spheroids including conventional 3D invasion assay, organotypic brain slice cultures, chronic cranial window model were implemented to investigate the impact of RT treatments (10 Gy single dose; 5×2 Gy or 2×5 Gy) combined with Au@DTDTPA(Gd) nanoparticles on tumor progression. The main tumor mass and its infiltrative area were analyzed.
Bacillus anthracis is a spore-forming microbe that persists in soil and causes anthrax disease. The most natural route of infection is ingestion by grazing animals. Gastrointestinal (GI) anthrax also occurs in their monogastric predators, including humans.
View Article and Find Full Text PDFOvarian cancer remains a major public health issue due to its poor prognosis. To develop more effective therapies, it is crucial to set-up reliable models that closely mimic the complexity of the ovarian tumor's microenvironment. 3D bioprinting is currently a promising approach to build heterogenous and reproducible cancer models with controlled shape and architecture.
View Article and Find Full Text PDFBackground: Scaffolding is a bioinformatics problem aimed at completing the contig assembly process by determining the relative position and orientation of these contigs. It can be seen as a paths and cycles cover problem of a particular graph called the "scaffold graph".
Results: We provide some NP-hardness and inapproximability results on this problem.
Many prokaryotes are covered by a two-dimensional array of proteinaceous subunits. This surface layers (S-layer) is incompletely characterized for many microorganisms. Here, we studied AH187.
View Article and Find Full Text PDFBackground: Epidermolysis bullosa (EB) is an inherited genodermatosis that results in mucocutaneous fragility. There is a lack of data on the impact of this disease on parents. There are no studies on the impact on siblings and few on healthcare professionals in dealing with this devastating disease.
View Article and Find Full Text PDFBackground: Patients with atopic dermatitis (AD), the commonest chronic inflammatory skin disease are often colonised and infected by . In this study, we aimed to determine the type and antibacterial sensitivities of the bacteria infecting eczematous lesions in children with AD and to recommend first-line antibiotic therapy.
Methods: A prospective study was conducted from June 2020 to June 2021 in children with AD presenting with a cutaneous infection at the King Edward hospital VIII outpatient dermatology clinic.
The branched aerobic respiratory chain in comprises three terminal oxidases: cytochromes , , and . Cytochrome requires heme A for activity, which is produced from heme O by heme A synthase (CtaA). In this study, we deleted the gene in AH187 strain, this deletion resulted in loss of cytochrome activity.
View Article and Find Full Text PDFIn this paper, we investigate througth a premilinary study the influence of repeat elements during the assembly process. We analyze the link between the presence and the nature of one type of repeat element, called transposable element (TE) and misassembly events in genome assemblies. We propose to improve assemblies by taking into account the presence of repeat elements, including TEs, during the scaffolding step.
View Article and Find Full Text PDFBackground: The SARS-CoV-2 pandemic has impacted tissue transplantation procedures since conjunctivas were found to be associated with coronavirus infection. Here, we investigated infection of a cornea graft from a COVID-19-positive donor.
Methods: In order to evaluate the presence of SARS-CoV-2 in the cornea graft we first carried out a qRT-PCR and then we investigated the presence of SARS-CoV-2 by fluorescence and electron microscopy.
Background: Meiotic recombination is a vital biological process playing an essential role in genome's structural and functional dynamics. Genomes exhibit highly various recombination profiles along chromosomes associated with several chromatin states. However, eu-heterochromatin boundaries are not available nor easily provided for non-model organisms, especially for newly sequenced ones.
View Article and Find Full Text PDFThe [3.3.0]furofuranone structure is found in numerous families of biologically active natural products.
View Article and Find Full Text PDFBackground: Mucocutaneous diseases (MCD) have been commonly described among human immunodeficiency virus (HIV) infected patients before the combined antiretroviral therapy (cART) era. There is limited data on the frequency and type of MCD in the cART era in African children and adolescents. This study aimed to describe the prevalence and spectrum of MCD in South African children and adolescents seropositive for HIV on cART.
View Article and Find Full Text PDFAssembly is a fundamental task in genome sequencing, and many assemblers have been made available in the last decade. Because of the wide range of possible choices, it can be hard to determine which tool or parameter to use for a specific genome sequencing project. In this paper, we propose a consensus approach that takes the best parts of several contigs datasets produced by different methods, and combines them into a better assembly.
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