Results 51 to 60 of about 6,203,398 (300)

THE PUZZLE OF THE FALSE POSITVE REACTIONS IN CR. NEOFORMANSE’S CAPSULAR ANTIGEN SLIDE LATES AGGLUTINATION TEST BY SERA OF PATIENTS WITH RHEUMATOID ARTHRITIS [PDF]

Iranian Journal of Public Health, 1987
Different examination have shown that rheumatoid factor is not responsible for false positive reaction (F.P.R.) in Cr. Neoformanse’s free capsular antigen latex agglutination test, whereas high levels of iron in sera of patients with rheumatoid arthritis
F. Zaini, A.S.A. Mehbod   +1 more
doaj   +1 more source

False positivity of non-targeted infections in malaria rapid diagnostic tests: the case of human african trypanosomiasis. [PDF]

PLoS Neglected Tropical Diseases, 2013
BACKGROUND: In endemic settings, diagnosis of malaria increasingly relies on the use of rapid diagnostic tests (RDTs). False positivity of such RDTs is poorly documented, although it is especially relevant in those infections that resemble malaria, such ...
Philippe Gillet, Dieudonné Mumba Ngoyi, Albert Lukuka, Viktor Kande, Benjamin Atua, Johan van Griensven, Jean-Jacques Muyembe, Jan Jacobs, Veerle Lejon   +8 more
doaj   +1 more source

High-throughput Plasmodium falciparum hrp2 and hrp3 gene deletion typing by digital PCR to monitor malaria rapid diagnostic test efficacy

eLife, 2022
Most rapid diagnostic tests for Plasmodium falciparum malaria target the Histidine-Rich Proteins 2 and 3 (HRP2 and HRP3). Deletions of the hrp2 and hrp3 genes result in false-negative tests and are a threat for malaria control.
Claudia A Vera-Arias, Aurel Holzschuh, Colins O Oduma, Kingsley Badu, Mutala Abdul-Hakim, Joshua Yukich, Manuel W Hetzel, Bakar S Fakih, Abdullah Ali, Marcelo U Ferreira, Simone Ladeia-Andrade, Fabián E Sáenz, Yaw Afrane, Endalew Zemene, Delenasaw Yewhalaw, James W Kazura, Guiyun Yan, Cristian Koepfli   +17 more
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

False negative polymerase chain reaction on cerebrospinal fluid samples in tuberculous meningitis established by culture [PDF]

Journal of Neurology, Neurosurgery & Psychiatry, 1999
The polymerase chain reaction (PCR) has been reported to be of diagnostic value when performed on CSF samples in tuberculous meningitis.1-4 Rapid amplification of Mycobacteruim tuberculosis specific DNA enables results to be available within 48 hours and can influence treatment decisions.
M MELZER, T J BROWN, J FLOOD, S LACEY, L R BAGG   +4 more
openaire   +1 more source

Definitions of true-positive, false-positive, true-negative and false-negative used in our study.

, 2016
Definitions of true-positive, false-positive, true-negative and false-negative used in our study.
Lotte M. G. Steuten (838598), Wim H. van Harten (2635489), Gunter von Minckwitz (11094), Anna Miquel-Cases (2635486), Valesca P. Retèl (2635492), Bianca Lederer (2635495)   +5 more
core   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

FEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Radiologic–Pathologic Discordance After Image-Guided Breast Biopsy: A Systematic Review of Prevalence and Outcomes

Medical Sciences
Background: Radiologic–pathologic discordance remains an important concern owing to the absence of standardized guidelines. This systematic review aimed to summarize the prevalence of discordant benign outcomes, defined as suspicious imaging findings ...
Pirada Yincharoen, Crystal Pravina Sharma, Weeratian Tawanwongsri   +2 more
doaj   +1 more source

True positive and false negative rate.

, 2022
True positive and false negative rate.
Rois Muqsith Fatawy (12859104), Ketut Sutarjana (12859137), A. A. G. Indraningrat (12859149), Made Bakta (12859176), Sri Masyeni (4039598), Ketut Suastika (6550650), Eka Sugiartha (12859140), Kadek Mulyantari (12859152), Erni Juwita Nelwan (9914834), A. A. G. Budhitresna (12859125), Kmg Parwata (12859134), Suka Aryana (12859170), D. G. Wedha Asmara (12859119), Made Indra Wijaya (12859167), Surya Wibawa (12859107), Adi Suparta (12859116), Yuli Gayatri (12859173), Jarwa Antara (12859113), Clareza Arief Wardhana (12859146), Raka Widiana (12859179), Gede Wardana (12859164), Nyoman Trisna Yustiani (12859161), Dewi Dian Sukmawati (7522349), Arya Widiyana Pasek (12859155), Dewi Arimas (12859128), Siska Kahari (12859143), Dewi Indriani (12859131), Tuti Parwati Merati (8283528), Putu Arya Nugraha (12859110), L. G. Sri Yenny (12859122), Oka Putrawan (12859158)   +30 more
core   +1 more source