Rapid diagnostic tests (RDTs) targeting histidine-rich protein 2 (2) are widely used for diagnosis of infections in resource-limited malaria endemic countries. However, test results are affected by deletions of the , , and flanking genes and associated negative results from rapid diagnostic devices were previously reported. Therefore, the aim of this study was to reveal the existing genetic profile of 2 and 3 genes of -infected patients in northwestern Ethiopia.
View Article and Find Full Text PDFspp. are ubiquitous and opportunistic free-living amoebae (FLA) that can cause keratitis and other infections in the human host. A quick and efficient diagnosis is often challenging.
View Article and Find Full Text PDFMalaria is the most important parasitic disease worldwide, and accurate diagnosis and treatment without delay are essential for reducing morbidity and mortality, especially in malaria. Real-time PCR is highly sensitive and highly specific, therefore an excellent diagnostic tool for laboratory detection and species-specific diagnosis of malaria, especially in non-endemic regions where experience in microscopic malaria diagnostics is limited. In contrast to many other real-time PCR protocols, our new fluorescence resonance energy transfer-based real-time PCR (FRET-qPCR) allows the quantitative and species-specific detection of all human spp.
View Article and Find Full Text PDFIncreasing numbers of travelers returning from endemic areas, migrants, and refugees have led to a significant rise in the number of imported malaria cases in non-endemic countries. Real- time PCR serves as an excellent diagnostic tool, especially in regions where experience in microscopy is limited. A novel fluorescence resonance energy transfer-based real-time PCR (FRET-qPCR) was developed and evaluated using 56 reference samples of the United Kingdom National External Quality Assessment Service (UK NEQAS) for molecular detection of malaria, including P.
View Article and Find Full Text PDFBackground: The use of highly sensitive molecular tools in malaria diagnosis is currently largely restricted to research and epidemiological settings, but will ultimately be essential during elimination and potentially eradication. Accurate diagnosis and differentiation down to species levels, including the two Plasmodium ovale species and zoonotic variants of the disease, will be important for the understanding of changing epidemiological patterns of the disease.
Methods: A qPCR-high resolution melting (HRM) method was to detect and differentiate all human Plasmodium species with one forward and one reverse primer set.
Background: Intestinal parasitic diseases occur worldwide, and their diagnosis poses considerable challenges. spp., (and, arguably, and spp.
View Article and Find Full Text PDFThe microaerophilic human parasite Trichomonas vaginalis causes infections in the urogenital tract and is one of the most often sexually transmitted pathogens worldwide. Due to its anaerobic metabolism, it has to quickly remove intracellular oxygen in order to avoid deactivation of essential metabolic enzymes such as oxygen-sensitive pyruvate:ferredoxin oxidoreductase (PFOR). Two major enzyme activities which are responsible for the removal, i.
View Article and Find Full Text PDFHigh Resolution Melting (HRM) analysis is a post-PCR analysis method used for identifying genetic variation in nucleic acid sequences. These data are presenting the identity of the 33 samples used for a qPCR-HRM and a nested snapback methods validation. In addition we are presenting the high resolution melting profiles of (Poc) and (Pow) in the following conditions: after a direct qPCR run and after a nested snapback run.
View Article and Find Full Text PDFPlasmodium ovale spp. are two of the six species of apicomplexan parasites belonging to the genus Plasmodium commonly causing disease in humans. A recent phylogeny study has identified both Plasmodium ovale species (P.
View Article and Find Full Text PDFThe present study focuses on development of phytochemical methods for quality assessment of two West-African Cochlospermum species (Cochlospermum planchonii and Cochlospermum tinctorium) traditionally used for malaria treatment in Burkina Faso. Antimalarial activity of preparations from dried rhizomes (decoction) was tested against the chloroquine-sensitive Plasmodium strain 3D7 using the histidine-rich protein II (HRP2) drug susceptibility assay and compared with extract preparations using organic solvents of different polarity. Two main apocarotenoids were isolated from rhizomes of C.
View Article and Find Full Text PDFEssential oils from leaves of Lippia multiflora, Mentha x piperita and Ocimum basilicum from Burkina Faso were analysed by GC-FID and GC-MS. Major components were p-cymene, thymol, b-caryophyllene, carvacrol and carvone for L. multiflora, menthol and iso-menthone for M.
View Article and Find Full Text PDFThe total phenolic and flavonoid contents and 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reduction antioxidant power (FRAP) antioxidant capacities of 19 accessions of Salvia officinalis from the sage collection of the genebank in Gatersleben (Germany) were evaluated. The major phenolic compounds of sage, that is, rosmarinic acid, caffeic acid, carnosol, and carnosic acid, were quantified by reverse-phase high-performance liquid chromatography. The aerial parts of different individual plants of each accession were collected in two consecutive years from the same experimental field at the beginning of their flowering period.
View Article and Find Full Text PDFIntroduction: Arbutin is a skin-whitening agent that occurs naturally in the bark and leaves of various plants. It is commonly quantified in plant extracts and skin-whitening products by HPLC.
Objective: To develop an alternative gas chromatographic method for the separation and quantification of arbutin in Origanum majorana and Arctostaphylos uva-ursi extracts.
A total of fourteen (14) species of wild edible fruits from Burkina Faso were analyzed for their phenolic and flavonoid contents, and their antioxidant activities using the DPPH, FRAP and ABTS methods. The data obtained show that the total phenolic and total flavonoid levels were significantly higher in the acetone than in the methanol extracts.Detarium microcarpum fruit had the highest phenolic and the highest flavonoid content,followed by that of Adansonia digitata, Ziziphus mauritiana, Ximenia americana and Lannea microcarpa.
View Article and Find Full Text PDF