Background: Vaccination is a protective measure against infectious diseases and remains one of the best investments in public health. Some African countries are still struggling to reach the required child immunization coverage. Several factors are responsible for limiting immunization coverage.
View Article and Find Full Text PDFIn sub-Saharan Africa, despite the implementation of multiple control interventions, the prevalence of malaria infection and clinical cases remains high. The primary tool for vector control against malaria in this region is the use of long-lasting insecticide-treated nets (LLINs) combined or not with indoor residual spraying (IRS) to achieve a synergistic effect in protection. The objective of this study was to assess the effectiveness of LLINs, with or without IRS, protected against infection and uncomplicated clinical cases (UCC) of malaria in Benin.
View Article and Find Full Text PDFBackground: Despite a global decrease in malaria burden worldwide, malaria remains a major public health concern, especially in Benin children, the most vulnerable group. A better understanding of malaria's spatial and age-dependent characteristics can help provide durable disease control and elimination. This study aimed to analyze the spatial distribution of Plasmodium falciparum malaria infection and disease among children under five years of age in Benin, West Africa.
View Article and Find Full Text PDFEndoplasmic reticulum aminopeptidase 2, ERAP2, is an emerging pharmacological target in cancer immunotherapy and control of autoinflammatory diseases, as it is involved in antigen processing. It has been linked to the risk of development of spondyloarthritis, and it associates with the immune infiltration of tumours and strongly predicts the overall survival for patients receiving check-point inhibitor therapy. While some selective inhibitors of its homolog ERAP1 are available, no selective modulator of ERAP2 has been disclosed so far.
View Article and Find Full Text PDFBackground: In Benin, malaria clinical cases, including the larger popular entity called "Palu" are evoked when people get fever. "Palu" is often self-diagnosed and self-medicated at home. This study aimed to describe the use of herbal medicine, and/or pharmaceutical medicines for prevention and treatment of malaria at home and the factors associated with this usage.
View Article and Find Full Text PDFIntroduction: Several studies around the world have shown a significant increase in student mistreatments in the Faculty of Medicine. The purpose of our study was to analyze student mistreatments and associated factors in the Faculty of Medicine of the University of Parakou (FM/UP) in 2018.
Methods: We conducted a cross-sectional, descriptive and analytical survey among the students of the Faculty of Medicine of the University of Parakou from 1 to 28 February 2018.
Background: Artemisinin-based combination therapy (ACT), used to treat uncomplicated malaria cases, is one of the main strategies of malaria control and elimination. One of the main objectives of the Benin National Malaria Control Program's (NMCP) strategic plan is to ensure that at least 80% of uncomplicated malaria is treated with ACT within 24 h. Therefore, it was of great interest to measure whether the country case management of fever amongst children under five, adhered to the NMCP's strategic plan and look into the barriers to the use of ACT.
View Article and Find Full Text PDFMalaria in pregnancy remains a serious public health problem in the Republic of Congo despite the implementation of intermittent preventive treatment with sulfadoxine-pyrimethamine (IPTp-SP) in 2006. The aim of this cross-sectional study was to characterize Plasmodium falciparum infections and determine possible risk factors in pregnant Congolese women attending an antenatal clinic in a periurban area of southern Brazzaville. This study was conducted from March 2012 to December 2013 in a site where several years ago, high malaria resistance to SP was reported.
View Article and Find Full Text PDFResearch on the neural substrate of aphasia recovery has consistently increased since the advent of functional neuroimaging. The evidence from therapy-induced aphasia recovery studies shows that better recovery results from the reactivation of left hemisphere function; still, the specific left hemisphere key areas that sign successful outcome with a specific therapy approach remain to be identified. Nine participants suffering from aphasia received brief and intensive therapy with Semantic Feature Analysis (SFA).
View Article and Find Full Text PDFBackground. The authors describe a lateral approach to the cervical spine for the management of spondylotic myeloradiculopathy. The rationale for this approach and surgical technique are discussed, as well as the advantages, disadvantages, complications, and pitfalls based on the author's experience over the last two decades.
View Article and Find Full Text PDFIn the last few years, an increased attention has been focused on NAD(+)-dependent DNA ligases. This is mostly due to their potential use as antibiotic targets, because effective inhibition of these essential enzymes would result in the death of the bacterium. However, development of an efficient drug requires that the conformational modifications involved in the catalysis of NAD(+)-dependent DNA ligases are understood.
View Article and Find Full Text PDFThis study presents a patient (JH) suffering from acquired deep dyslexia. According to a cognitive model of reading, JH exhibited a significant impairment in both the phonological and lexical routes to reading. A rehabilitation program was proposed.
View Article and Find Full Text PDFDNA ligases are important enzymes required for cellular processes such as DNA replication, recombination, and repair. NAD(+)-dependent DNA ligases are essentially restricted to eubacteria, thus constituting an attractive target in the development of novel antibiotics. Although such a project might involve the systematic testing of a vast number of chemical compounds, it can essentially gain from the preliminary deciphering of the conformational stability and structural perturbations associated with the formation of the catalytically active adenylated enzyme.
View Article and Find Full Text PDFPsychrophiles, host of permanently cold habitats, display metabolic fluxes comparable to those exhibited by mesophilic organisms at moderate temperatures. These organisms have evolved by producing, among other peculiarities, cold-active enzymes that have the properties to cope with the reduction of chemical reaction rates induced by low temperatures. The emerging picture suggests that these enzymes display a high catalytic efficiency at low temperatures through an improved flexibility of the structural components involved in the catalytic cycle, whereas other protein regions, if not implicated in catalysis, may be even more rigid than their mesophilic counterparts.
View Article and Find Full Text PDFVaccine-induced immunity against measles is less robust than natural immunity. Waning of immunity in vaccines may eventually require a revaccination of adults. Measles antigens expressed in plants have been shown to be antigenic and immunogenic both after invasive and oral vaccination.
View Article and Find Full Text PDFCanine distemper virus (CDV) has a wide host spectrum, and during the past years, distemper has been observed in species that were previously not considered to be susceptible. In this study, we investigated the prevalence of CDV-specific antibodies in red foxes (Vulpes vulpes) sampled between May and November 1997. About 9 to 13% of the Luxembourg red fox population is positive for antibodies against CDV.
View Article and Find Full Text PDFSerological evidence indicates that measles virus (MV) could circulate in seropositive, fully protected populations. Among individuals fully protected against disease, those prone to asymptomatic secondary immune response are the most likely to support subclinical MV transmission. The serological characteristics of protected subjects who developed secondary immune response after reexposure to measles have been described recently [Huiss et al.
View Article and Find Full Text PDFClin Exp Immunol
September 1997
Among 44 fully protected, late convalescent adults re-exposed to measles, four developed an asymptomatic secondary immune response (SIR) with a significant increase in measles virus (MV)-specific IgG and low IgM. The boosted antibodies were mainly of the IgG1 subclass and reacted with the nucleoprotein and the haemagglutinin protein. About 30 weeks after re-exposure, antibody levels had decreased by 35-50%, suggesting that the booster effect may only be transient.
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