Negative / Null Result ReportMedicine
Saito T, Namera A, Yamamoto R et al. · 2026 · The Journal of toxicological sciences
Zopiclone (ZOP) and eszopiclone (EZOP) are hypnotics belonging to the cyclopyrrolone class, which are metabolized to zopiclone-N-oxide (ZOPNO) and N-desmethylzopiclone (NDZOP), respectively, and finally to 2-amino-5-chloropyridine (2A5C)…
View details →Negative / Null Result ReportMedicine
Pottenger LH, Banton M, Barranco WT et al. · 2026 · Journal of environmental science and health. Part C, Toxicology and carcinogenesis
Recent studies investigating mutagenic/cytogenetic effects of styrene and styrene-7,8-oxide (SO) were reviewed to update published critical evaluations of these data from 2019. Transcriptomics studies relevant to styrene/SO genotoxicity…
View details →Negative / Null Result ReportMedicine
Monteiro T, Romeiro K, Brisson-Suárez K et al. · 2026 · European endodontic journal
Objective This study compared the accuracy of digital periapical radiography (DPR) and cone beam computed tomography (CBCT) in detecting extruded filling material, using a human cadaver model. Micro-computed tomography (Micro-CT) served as…
View details →Negative / Null Result ReportMedicine
Nguyen AQ, Nguyen HTN, Ho NT et al. · 2026 · Allergy and asthma proceedings
Background: Nonsteroidal anti-inflammatory drugs (NSAID) are the second most frequent cause of drug-induced hypersensitivity after β-lactam antibiotics. Diagnosing cross-intolerance reactions to NSAIDs remains challenging because…
View details →Failed Experiment ReportMedicine
Mucci TJ, Adam JA, Hirsa AH · 2026 · Soft matter
Modeling the flow of insoluble surfactant monolayers undergoing rapid expansion and compression remains a long-standing challenge in hydrodynamics. In a recent letter, compressible flow of a DPPC monolayer in the coexisting…
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Bedia-Tanoh VA, Konaté-Touré A, Kouakou OMK et al. · 2025 · Preprint
Abstract Background Accurate malaria diagnosis and reporting are critical for effective case management and surveillance. In sub-Saharan Africa, rapid diagnostic tests (RDTs) are widely used to support clinical decision-making. However,…
View details →Null DatasetMedicine
Feldmeier JJ, Gesell LB · 2026 · Undersea & hyperbaric medicine : journal of the Undersea and Hyperbaric Medical Society, Inc
The application of hyperbaric oxygen (HBO₂) to the treatment and prevention of late radiation injury (LRTI) is the focus for this chapter. Additional miscellaneous topics related to radiation exposure and HBO₂ will also be explored,…
View details →Null DatasetOpen accessMedicine
Valdezate S, Valiente M, Díaz-Ramón S et al. · 2026 · Frontiers in cellular and infection microbiology
Botulism is a rare but severe neurological disease caused by botulinum neurotoxins (BoNTs). Standard diagnostic methods including the mouse bioassay (SMB) and bont gene type-specific PCR, are often limited by the high genetic diversity…
View details →Null DatasetOpen accessMedicine
Kurtipek FB, Yozgat AK, Gökçek E et al. · 2026 · BMC infectious diseases
Background Febrile neutropenia (FN) is a frequent and potentially life-threatening complication in patients with hematologic malignancies. Prompt and accurate identification of bloodstream pathogens is essential to optimize antimicrobial…
View details →Replication FailureMedicine
McCavitt DG, Culler MW, Palmer RC et al. · 2026 · The Journal of arthroplasty
Background The utility of synovial C-reactive protein (CRP) in diagnosing periprosthetic joint infection (PJI) remains controversial. This study examined the performance of synovial CRP for PJI diagnosis following total knee arthroplasty…
View details →Replication FailureOpen accessMedicine
Koh SJ, Liou WL, Gan S et al. · 2026 · Cureus
Hepatitis C virus (HCV) screening is routinely performed in patients undergoing haemodialysis (HD) to detect incident infections. Currently, patients undergoing HD are screened using enzyme immunoassays (EIA) that detect hepatitis C…
View details →Replication FailureMedicine
Mura T, Aso M, Kawamura K et al. · 2025 · Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy
Rapid diagnostic tests like the Xpert MRSA/SA BC assay are valuable for the early detection of Staphylococcus aureus (SA) and methicillin-resistant S. aureus (MRSA) in positive blood cultures. However, genetic variations in target regions…
View details →Replication FailureOpen accessMedicine
Li X, Ou X, Liu X et al. · 2025 · BMC infectious diseases
BACKGROUND: In China, most health facilities for Tuberculosis(TB) prevention and treatment are not TB-designated. Underdiagnosis in non-TB-designated health facilities(NTDHFs) is a major cause of under-detection and underdiagnosis of…
View details →Replication FailureMedicine
Guleria S, Dutta U, Mewara A et al. · 2026 · Diagnostic microbiology and infectious disease
Background Giardia duodenalis is globally distributed intestinal protozoan parasite responsible for giardiasis causing various clinical manifestations ranging from asymptomatic to chronic diarrhea and malabsorption. Accurate diagnosis is…
View details →Negative / Null Result ReportMedicine
Yang YJ, Lee MR, Chung CL et al. · 2026 · International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases
Objectives Despite the availability of rapid tuberculosis (TB) nucleic acid amplification (NAA) testing, prevention of TB transmission within healthcare facilities remains a challenge due to ongoing difficulties in promptly isolating…
View details →Negative / Null Result ReportMedicine
Wu M, Bukowski BR, Hickman JA et al. · 2026 · The Journal of arthroplasty
Background Accurate diagnosis of periprosthetic joint infection (PJI) remains suboptimal. Of the tests used, one is the alpha defensin lateral flow assay (ADLFA). This study assessed ADLFA for the diagnosis of PJI in total hip…
View details →Negative / Null Result ReportMedicine
Ismail A, Abunasser S, Salameh IM et al. · 2026 · Microorganisms
Fourth-generation immunoassays are widely used for HIV and syphilis screening; however, false-reactive results may increase confirmatory testing and operational burden in high-throughput laboratories. This study evaluated the comparative…
View details →Failed Experiment ReportMedicine
Kaya B, Can E, Karakurt Y et al. · 2026 · Advances in neonatal care : official journal of the National Association of Neonatal Nurses
Background Early-onset neonatal sepsis (EOS) remains a diagnostic challenge because clinical signs are nonspecific and blood cultures, although the diagnostic gold standard may yield false-negative results due to low blood volumes or…
View details →Replication FailureMedicine
Wang D, Huang D, Shen H et al. · 2026 · Nature human behaviour
Human-machine partnerships are increasingly used to address grand societal challenges, yet knowledge of the comparative strengths of humans and machines to innovate is nascent. Here we compare the ability of humans (N = 9,198) and large…
View details →Replication FailureOpen accessMedicine
Hajkowicz K, Woodford J, Pillai ES et al. · 2025 · Emerging infectious diseases
Using metatranscriptomics, we identified Trubanaman virus in cerebrospinal fluid from a severely immunocompromised man who died of encephalitis in Queensland, Australia. Virus sequences were related to orthobunyaviruses previously detected…
View details →Negative / Null Result ReportMedicine
Greenfield PT, Phillips BB, Throckmorton TW et al. · 2026 · Journal of surgical orthopaedic advances
Despite studies highlighting magnetic resonance imaging (MRI)/magnetic resonance angiogram (MRA) accuracy in diagnosing shoulder pathologies, there remains a paucity of data regarding false negative results of these tests. The authors…
View details →Negative / Null Result ReportMedicine
Burleigh-Flayer H, Canatsey R, Jean PA et al. · 2026 · Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association
Cyclo-di-Badge (CdB) is a by-product of epoxy resin coatings applied to the inside of food cans. By-products are non-intentionally added substances (NIAS) with potential to migrate into food. Due to the lack of data on CdB, studies were…
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Mousavi SS, Karimi S, Hassannia MS et al. · 2025 · Preprint
Objective Electrocardiography and blood pressure (BP) measurement are two widely used tools for diagnosis and monitoring cardiovascular diseases. While the electrocardiogram (ECG) and BP have been considered complementary modalities, there…
View details →Failed Experiment ReportOpen accessMedicine
Rosiles T, Nguyen M, Calin-Jageman RJ et al. · 2026 · eNeuro
Forming a long-term memory requires changes in neuronal transcription. What happens, though, as the memory is forgotten? And how does the transcriptional state relate to the maintenance and recall of the long-term memory? To answer these…
View details →Negative / Null Result ReportOpen accessMedicine
Al Ayoubi O, Aldakak MA, Ibrahim B et al. · 2026 · Clinical case reports
Pleural tuberculosis is a common manifestation of extrapulmonary tuberculosis; however, its diagnosis remains challenging in paucibacillary disease, where clinical presentation may be atypical and microbiological tests frequently yield…
View details →Negative / Null Result ReportMedicine
Nielsen SM, Russell EM, Ellsworth RE et al. · 2025 · Journal of the National Comprehensive Cancer Network : JNCCN
Background The presence of variants of uncertain significance (VUS) should not influence clinical management; however, prior studies on breast cancer-related health care utilization in women with VUS versus negative germline genetic test…
View details →Failed Experiment ReportOpen accessMedicine
McGuier M, Bragg E, Holtzheimer P et al. · 2026 · eNeuro
There is a critical need for robust and reliable preclinical models for posttraumatic stress disorder (PTSD) to better understand pathophysiological mechanisms and support the development of novel treatments. The single prolonged stress…
View details →Negative / Null Result ReportMedicine
Salman E · 2026 · Indian journal of medical microbiology
Background The primary reason for increased lab use is inappropriate or needless test requests. Our study examined the benefits of repeated antinuclear antibody (ANA) testing and the reasons for ANA test requests in accordance with…
View details →Negative / Null Result ReportMedicine
Watanabe K, Takahashi H, Narumi R et al. · 2025 · The journal of obstetrics and gynaecology research
Non-invasive prenatal testing (NIPT) is a screening method that analyzes cell-free DNA (cfDNA) in maternal plasma to detect major aneuploidies. However, NIPT can fail to identify subtle chromosomal aberrations. We report a case in which…
View details →Failed Experiment ReportOpen accessMedicine
Hartady T, Sugandi SD, Viqih M · 2026 · Veterinary sciences
Poultry disease outbreaks are frequently multifactorial, involving complex interactions between infectious agents and environmental stressors. This report describes a case of avian influenza (AI) co-infection in a commercial broiler farm…
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