Results 31 to 40 of about 8,924,569 (266)

Diagnostic performance of the loop-mediated isothermal amplification (LAMP) based illumigene® malaria assay in a non-endemic region

Malaria Journal, 2017
Background Light microscopy and antigen-based rapid diagnostic tests are the primary diagnostic tools for detecting malaria, although being labour-intensive and frequently challenged by lack of personnel’s experience and low levels of parasite density ...
Anne-Sophie De Koninck, Lieselotte Cnops, Mattias Hofmans, Jan Jacobs, Dorien Van den Bossche, Jan Philippé   +5 more
doaj   +1 more source

Volume of sputum to detect acid-fast bacilli as a measure of quality for the diagnosis of pulmonary tuberculosis at the Dr George Mukhari Hospital, South Africa

African Journal of Primary Health Care & Family Medicine, 2011
Background: Optimum sputum results for acid-fast bacilli (AFB) microscopy are linked to a sputum quantity of at least 5.0 mL. This study was aimed at establishing the effect of sputum quantity in the pick-up rate of AFB microscopy by comparing sputum ...
Iqbal Rashid, Langalibalele H. Mabuza, Indiran Govender, Deidre Pretorius   +3 more
doaj   +1 more source

Superiority of PCR against microscopy for diagnosing Entamoeba histolytica in liver abscess samples

, 2018
A total of 25 amoebic liver abscess (ALA) samples were assessed by microscopy, serology, and polymerase chain reaction (PCR). While microscopy was negative for Entamoeba histolytica in all samples, DNA was amplified in 11 samples and had 100% compliance
Linda Hoang, Sree S Cherian, Min-Kuang Lee, Quantine Wong, Muhammad Morshed, Teresa Lo   +5 more
core   +1 more source

Super-Resolution Microscopy: A Virus’ Eye View of the Cell [PDF]

, 2014
It is difficult to observe the molecular choreography between viruses and host cell components, as they exist on a spatial scale beyond the reach of conventional microscopy.
Grove, J, Grove, Joe, Joe Grove
core   +1 more source

Asymptomatic Plasmodium Infections in Children in Low Malaria Transmission Setting, Southwestern Uganda

Emerging Infectious Diseases, 2016
A survey of asymptomatic children in Uganda showed Plasmodium malariae and P. falciparum parasites in 45% and 55% of microscopy-positive samples, respectively. Although 36% of microscopy-positive samples were negative by rapid diagnostic test, 75% showed
Michelle E. Roh, Caesar Oyet, Patrick Orikiriza, Martina Wade, Gertrude N. Kiwanuka, Juliet Mwanga-Amumpaire, Sunil Parikh, Yap Boum   +7 more
doaj   +1 more source

Aliasing mitigation in optical microscopy of dynamic biological samples by use of temporally modulated color illumination and a standard RGB camera [PDF]

, 2020
Significance: Despite recent developments in microscopy, temporal aliasing can arise when imaging dynamic samples. Modern sampling frameworks, such as generalized sampling, mitigate aliasing but require measurement of temporally overlapping and ...
Liebling, Michael, Jaques, Christian, Liebling M, Jaques C, Michael Liebling, Christian Jaques   +5 more
core   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Evaluating performance in three-dimensional fluorescence microscopy [PDF]

, 2007
In biological fluorescence microscopy, image contrast is often degraded by a high background arising from out of focus regions of the specimen. This background can be greatly reduced or eliminated by several modes of thick specimen microscopy, including ...
JOHN M. MURRAY, Waters, Jennifer C., Murray, John M., Swedlow, Jason R.; id_orcid, JENNIFER C. WATERS, PAUL L. APPLETON, JASON R. SWEDLOW, Appleton, Paul L.; id_orcid   +7 more
core   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

FEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta, Hari Baskar Balasubramanian, Amir Pasokh, Marietta Zille   +3 more
wiley   +1 more source

Using rapid diagnostic tests as source of malaria parasite DNA for molecular analyses in the era of declining malaria prevalence. [PDF]

, 2011
BACKGROUND: Malaria prevalence has recently declined markedly in many parts of Tanzania and other sub-Saharan African countries due to scaling-up of control interventions including more efficient treatment regimens (e.g.
Bygbjerg Ib C, Martha M Lemnge, Lemnge Martha M, Persson, Ola, Madebe, Rashid A, Deus S Ishengoma, Ola Persson, Ishengoma Deus S, Ishengoma, Deus S, Lemnge, Martha M, Persson Ola, Nyagonde Nyagonde, Lwitiho Sudi, Vestergaard Lasse S, Lasse S Vestergaard, Alifrangis Michael, Sudi Lwitiho, Madebe Rashid A, Ib C Bygbjerg, Nyagonde, Nyagonde, Vestergaard, Lasse S, Lwitiho, Sudi, Michael Alifrangis, Rashid A Madebe, Alifrangis, Michael, Bygbjerg, Ib C   +25 more
core   +1 more source