Negative / Null Result ReportOpen accessMedicine
Mason MG, Richardson EJ, Giarrusso C et al. · 2025 · Journal of the experimental analysis of behavior
This experiment explored a rodent model of functional class formation by assessing the transfer of a novel discriminative function across class members. Following simple successive discrimination reversal training and consistently strong…
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Chamberlain DB, Chamberlain JM · 2017 · Annals of emergency medicine
Study objective We demonstrate the application of a Bayesian approach to a recent negative clinical trial result. A Bayesian analysis of such a trial can provide a more useful interpretation of results and can incorporate previous…
View details →Negative / Null Result ReportOpen accessMedicine
Yurttas C, Horvath P, Fischer I et al. · 2024 · Journal of clinical medicine
(1) Background: Laparoscopic staging is essential in gastric cancer (GC) to rule out peritoneal metastasis (PM). Hypericin, a plant-derived fluorescent compound, has been suggested to improve laparoscopic visualization of PM from GC. This…
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Puvvada SD, Guillén-Rodríguez JM, Rivera XI et al. · 2017 · Oncology
Objective Aggressive lymphomas (aNHL) including diffuse large B-cell lymphoma (DLBCL) have poor outcomes in relapsed refractory patients. Prior studies have demonstrated that loss of major histocompatibility complex class II (MHCII)…
View details →Negative / Null Result ReportOpen accessMedicine
Regel A, Sepriano A, Baraliakos X et al. · 2017 · RMD open
To assess the efficacy and safety of non-biological therapies in patients with axial spondyloarthritis (axSpA) to inform the update of the Assessment of SpondyloArthritis international Society (ASAS)/European League Against Rheumatism…
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Abdelrahman KM, Hackshaw KV · 2021 · Biomedicines
Neuropathic pain affects 7-10% of the population and is often ineffectively and incompletely treated. Although the gold standard for treatment of neuropathic pain includes tricyclic antidepressants (TCAs), serotonin-noradrenaline reuptake…
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Witzel S, Statland JM, Steinacker P et al. · 2024 · European journal of neurology
Background and purpose Rasagiline might be disease modifying in patients with amyotrophic lateral sclerosis (ALS). The aim was to evaluate the effect of rasagiline 2 mg/day on neurofilament light chain (NfL), a prognostic biomarker in ALS.…
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Kitchin SS, Lakshmanan S, Kinninger A et al. · 2023 · The British journal of cardiology
Atrial fibrillation (AF) is a common arrhythmia associated with poor outcomes. N-3 fatty acids have been shown to provide significant cardiovascular risk reduction, but they may exacerbate the risk of AF. The pathway by which N-3 fatty…
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Konishi K · 2024 · Entropy (Basel, Switzerland)
We comment on the so-called negative result experiments (also known as null measurements, interaction-free measurements, and so on) in quantum mechanics (QM), in the light of the new general understanding of the quantum-measurement…
View details →Negative / Null Result ReportOpen accessMedicine
Yarnall S, Saben JL, Sun N et al. · 2025 · Journal of genetic counseling
This observational study aimed to capture patients' experiences after reviewing carrier screening (CS) and/or noninvasive prenatal cell-free DNA testing (NIPT) results with Natera's Educational Virtual Assistant (NEVA). Patients, partners…
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Van Der Pol B, Ippolito J, Gao R et al. · 2026 · Sexually transmitted diseases
Background Extragenital (oropharyngeal and anorectal) Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (or gonococci [GC]) infections are underdiagnosed. Here we report sensitivity and specificity estimates that were obtained from the…
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Ding JJ, Chiu CF, Su YT et al. · 2025 · Pediatric research
Background Maternal hypercalcemia is a rare but potentially serious cause of late-onset neonatal hypocalcemia. Data on the clinical characteristics and outcomes of mother-baby couplets with maternal hypercalcemia and subsequent neonatal…
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Džafić F, Ahmetović A, Čoloman N et al. · 2026 · International archives of allergy and immunology
Introduction Allergic rhinitis (AR) is a prevalent health concern. In Europe, 20-40% of the population is affected. Diagnostic methods include skin tests, measurement of serum immunoglobulin E (IgE), nasal smear for eosinophils, and…
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Kohan R, Gil-Campesino H, García Rodríguez IO et al. · 2026 · Emerging infectious diseases
We report 2 cases of donor-derived Strongyloides stercoralis infection in renal transplant recipients. Despite initial negative serologic testing in donor samples, retrospective testing confirmed transmission. This report underscores the…
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Komiya T, Huang CH · 2018 · Frontiers in oncology
Recent application of immunotherapy in clinical oncology revolutionized our management of advanced human cancers. Check point inhibitors targeting CTLA4 and PD-1/PD-L1 axis are immunotherapeutic agents currently available to treat a…
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Ponizovsky AM, Rosca P, Aronovich E et al. · 2015 · Journal of substance abuse treatment
Background Limited clinical trials and case-reports yielded conflicting results regarding the efficacy of baclofen (a GABAB agonist) in the treatment of alcohol dependence. The aim of this study was to test the efficacy and tolerability of…
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Park L, Furey M, Nugent AC et al. · 2019 · The international journal of neuropsychopharmacology
Background This randomized, placebo-controlled, crossover trial examined the antidepressant efficacy of the muscarinic antagonist scopolamine in major depressive disorder subjects with more severe and refractory forms of major depressive…
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Wu CC, Wolfe JM · 2022 · Vision research
During a visual search for a target among distractors, observers do not fixate every location in the search array. Rather processing is thought to occur within a Functional Visual Field (FVF) surrounding each fixation. We argue that there…
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Pramhas S, Thalhammer T, Terner S et al. · 2023 · The Lancet regional health. Europe
Background Painful knee osteoarthritis (KOA) is common, pharmacological treatment, however, is often hampered by limited tolerability. Cannabidiol, which preclinically showed anti-inflammatory, analgesic activity, could supplement…
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Brustad N, Garland J, Thorsen J et al. · 2020 · JAMA pediatrics
Importance Studies suggest an association between maternal vitamin D status during pregnancy and offspring anthropometry and bone mineralization, but investigations are few and with mixed results. Objective To investigate the effect of a…
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Wu Y, Tan KC, Shiu SW et al. · 2022 · Journal of diabetes investigation
Aims/introduction To examine the association between cholesterol efflux capacity (CEC) of serum high-density lipoprotein (HDL) and cognitive function and brain structures in older people with diabetes mellitus. Materials and methods…
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Genis C, Torun Ozel C, Selmanoglu A et al. · 2025 · Allergy and asthma proceedings
Background: Ondansetron is a common antiemetic that rarely causes hypersensitivity. Skin-prick testing (SPT) and intradermal testing (IDT) may assist in diagnosing ondansetron hypersensitivity; however, their sensitivity, specificity, and…
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Felländer M, Grandi G, Juremalm M et al. · 2026 · Veterinary parasitology, regional studies and reports
Infections with Fasciola hepatica are most prevalent in south-western Sweden, but climate change may facilitate further spread, as both the parasite and its snail host thrive in humid, mild conditions. Sheep are particularly susceptible,…
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Yi P, Ou ZY, Wang MM et al. · 2026 · Zhongguo shi yan xue ye xue za zhi
Objective To explore the simplest scheme for detection of "Asian-type" DEL in clinical blood transfusion and its application effectiveness. Methods 100 pregnant women who tested Rh(D) negative by the saline method were selected. Their…
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Iimura S, Nishaat A · 2025 · Preprint
The current study explored the associations between different levels of developmental plasticity factors—specifically, prenatal androgen exposure and the personality trait related to environmental sensitivity. We recruited participants…
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Lee S, Lee J, Park D et al. · 2026 · NPJ digital medicine
Gastroesophageal reflux disease (GERD) diagnosis traditionally relies on acid exposure time (AET) obtained from 24-h multichannel intraluminal impedance-pH (MII-pH) monitoring, the gold standard for GERD diagnosis. However, a negative…
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Galloway NL, Sargeant GA, Powers JG et al. · 2026 · Journal of wildlife diseases
Effective wildlife disease management and research rely on trustworthy disease diagnostics. For chronic wasting disease (CWD), immunohistochemistry (IHC) is recognized as the gold standard, and ELISA is a reliable high-throughput screening…
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Rincón-González AM, Galeano-Tamayo DC, Zuluaga LSD · 2025 · Revista alergia Mexico (Tecamachalco, Puebla, Mexico : 1993)
Objective To explore the factors associated with the use of the antibiotic implicated in an adverse reaction following a negative challenge test in pediatric patients in a clinical allergology service of a health institution in Medellin.…
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Kilic A, Celiktas B · 2026 · Preprint
Abstract As Large Language Models (LLMs) are integrated into critical infrastructure, externally auditing their safety mechanism activation without internal access becomes essential. This paper investigates whether LLM safety refusals…
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Warintaksa P, Youkhong C, Trikasemmart M et al. · 2026 · The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians
Introduction True labor is characterized by regular uterine contractions and cervical changes. However, the precise diagnosis of the "onset" of true labor is challenging, as the examination of cervical changes requires multiple timepoints,…
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