False negative results in testosterone doping in forensic cases: sensitivity of the urinary detection criteria T/E and T/LH.
Sign Up to like & getrecommendations! Published in 2021 at "Drug testing and analysis"
DOI: 10.1002/dta.3125
Abstract: At the Swedish national forensic toxicology laboratory, a measured testosterone/epitestosterone (T/E) ratio ≥12 together with testosterone/luteinizing hormone (T/LH) in urine >400 nmol/IU is considered as a proof of exogenous testosterone administration. However, according to the… read more here.
Keywords: detection; results testosterone; false negative; testosterone ... See more keywords
Necessity to critically review the automatic results of the Xpert Flu assay
Sign Up to like & getrecommendations! Published in 2017 at "Diagnostic Microbiology and Infectious Disease"
DOI: 10.1016/j.diagmicrobio.2017.01.015
Abstract: Abstract While using the Xpert Flu assay we became aware of false-negative results. The study aimed to analyze the causes of these false-negative results. One hundred fifty-nine respiratory specimens were tested in the Xpert Flu… read more here.
Keywords: specimens tested; false negative; xpert flu; negative results ... See more keywords
Negative results of growing titania nanotubes on cellulose nanocrystals – Effect of hydrothermal reaction
Sign Up to like & getrecommendations! Published in 2017 at "Results in physics"
DOI: 10.1016/j.rinp.2017.01.016
Abstract: Abstract Titania nanotubes (TiO 2 nanotubes or TNT) are grown hydrothermally on cellulose nanocrystals (CNC) synthesized from microcrystalline cellulose. It is observed that the CNC are lost during synthesis due to its low thermal stability.… read more here.
Keywords: results growing; growing titania; titania nanotubes; negative results ... See more keywords
Negative results are needed to show the specific value of a cultural explanation for g
Sign Up to like & getrecommendations! Published in 2017 at "Behavioral and Brain Sciences"
DOI: 10.1017/s0140525x16001588
Abstract: Abstract Burkart et al. suggest that social learning can explain the cognitive positive manifold for social animals, including humans. We caution that simpler explanations of positive trait intercorrelations exist, such as genetic load. To test… read more here.
Keywords: explanation; needed show; show specific; results needed ... See more keywords
Adenoma location, size, and morphology are risk factors for FOBT false-negative results in inpatients with advanced colorectal adenoma
Sign Up to like & getrecommendations! Published in 2024 at "Scientific Reports"
DOI: 10.1038/s41598-024-51377-0
Abstract: Recently, advanced adenoma (AA) has been recognized as a target for colorectal cancer (CRC) screening. However, the fecal occult blood test (FOBT), the primary non-invasive screening method, shows limited sensitivity in detecting AA. This study… read more here.
Keywords: location; false negative; adenoma; negative results ... See more keywords
Recording negative results of protein–protein interaction assays: an easy way to deal with the biases and errors of interactomic data sets
Sign Up to like & getrecommendations! Published in 2017 at "Briefings in Bioinformatics"
DOI: 10.1093/bib/bbw075
Abstract: In recent years, it has become increasingly common to use assays that can test whether two proteins interact, such as yeast two-hybrid and tandem affinity purification followed by mass spectrometry. Such techniques, particularly when applied… read more here.
Keywords: results protein; data sets; protein interaction; interaction assays ... See more keywords
Diagnostic open brain biopsy following initial negative results of cerebrospinal fluid assessment for Toxoplasma
Sign Up to like & getrecommendations! Published in 2017 at "Transplant Infectious Disease"
DOI: 10.1111/tid.12666
Abstract: Cerebral toxoplasmosis is a rare but fatal complication after allogeneic hematopoietic stem cell transplantation (HSCT), and reaching an accurate antemortem diagnosis with pathological proof is difficult.1,2 We describe herein the clinical course of a patient… read more here.
Keywords: biopsy following; open brain; brain biopsy; initial negative ... See more keywords
No news is still good news: well-conducted studies with negative results make for a stronger evidence base
Sign Up to like & getrecommendations! Published in 2018 at "Veterinary Record"
DOI: 10.1136/vr.k2819
Abstract: ‘For any given research area, one cannot tell how many studies have been conducted but never reported.’ This formed the basis of what Rosenthal coined the ‘file drawer problem’ in 1979;1 that is, journals are… read more here.
Keywords: news; negative results; news still; evidence base ... See more keywords
A Case of False-Negative Results in the One-Step Nucleic Acid Amplification Assay for Sentinel Lymph Node Metastasis in Breast Cancer with Low Cytokeratin 19 Expression
Sign Up to like & getrecommendations! Published in 2025 at "Case Reports in Oncology"
DOI: 10.1159/000546995
Abstract: Abstract Introduction: One-step nucleic acid amplification (OSNA) for the analysis of sentinel lymph nodes is now widely used as a reliable tool for the intraoperative diagnosis of breast cancer metastasis based on the quantification of… read more here.
Keywords: breast cancer; breast; sentinel lymph; false negative ... See more keywords
Negative Results, Positive Outcome: A Case of Primary Livedoid Vasculopathy With an Elusive Laboratory Workup
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Investigative Medicine High Impact Case Reports"
DOI: 10.1177/23247096241266090
Abstract: Livedoid vasculopathy (LV) is a chronic, recurrent thrombotic vasculopathy characterized by painful ulcerations on the lower extremities, which heal slowly and leave atrophic white scars known as “atrophie blanche.” This report presents the case of… read more here.
Keywords: negative results; laboratory workup; case; livedoid vasculopathy ... See more keywords
Plea for a Simple But Radical Change in Scientific Publication: To Improve Openness, Reliability, and Reproducibility, Let’s Deposit and Validate Our Results before Writing Articles
Sign Up to like & getrecommendations! Published in 2022 at "eNeuro"
DOI: 10.1523/eneuro.0318-22.2022
Abstract: Abstract Limited reproducibility and validity are major sources of concern in biology and other fields of science. Their origins have been extensively described and include material variability, incomplete materials and methods report, results selection, defective… read more here.
Keywords: reproducibility; change; plea simple; reliability ... See more keywords