Negative / Null Result ReportOpen accessPsychology
Simone Di Plinio · 2022 · Frontiers in Psychology
Correlation coefficients are often compared to investigate data across multiple research fields, as they allow investigators to determine different degrees of correlation to independent variables. Even with adequate sample size, such differences may be minor but still scientifically relevant. To date, although much effort has gone into developing methods for estimating differences across correlation coefficients, adequate tools for variable sample sizes and correlational strengths have yet to be tested. The present study evaluated four different methods for detecting the difference between two
View details →Negative / Null Result ReportOpen accessMedicine
Fabrizio Ricci, Franz–Josef Neumann, Nicole Rübsamen et al. · 2022 · Frontiers in Cardiovascular Medicine
Background The instant, single-sampling rule-out of acute myocardial infarction (AMI) is still an unmet clinical need. We aimed at testing and comparing diagnostic performance and prognostic value of two different single-sampling biomarker strategies for the instant rule-out of AMI. Methods From the Biomarkers in Acute Cardiac Care (BACC) cohort, we recruited consecutive patients with acute chest pain and suspected AMI presenting to the Emergency Department of the University Medical Center Hamburg-Eppendorf, Hamburg, Germany. We compared safety, effectiveness and 12-month incidence of the comp
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Teng Liu, Jian‐She Wang · 2023 · Liver International
Abstract Background and Aims A recent study suggested that administration of ursodeoxycholic acid (UDCA) at dosages usually employed clinically may reduce rates of severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) infection. A…
View details →Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology
Valeriy Timofeyev, C. A. Porter, Dipika Tuteja et al. · 2010 · American Journal of Physiology-Heart and Circulatory Physiology
Adenylyl cyclase (AC) is the principal effector molecule in the β-adrenergic receptor pathway. AC(V) and AC(VI) are the two predominant isoforms in mammalian cardiac myocytes. The disparate roles among AC isoforms in cardiac hypertrophy…
View details →Negative / Null Result ReportOpen accessMedicine
Xi Luo, Xiaodong Huang, Jingwei Luo et al. · 2022 · BMC Cancer
PURPOSE: Concurrent chemoradiotherapy (CCRT) is a standard treatment choice for locally advanced hypopharyngeal carcinoma. The aim of this study was to investigate whether induction chemotherapy (IC) followed by CCRT is superior to CCRT alone to treat locally advanced hypopharyngeal carcinoma. METHODS AND MATERIALS: Patients (n = 142) were randomized to receive two cycles of paclitaxel/cisplatin/5-fluorouracil (TPF) IC followed by CCRT or CCRT alone. The primary end point was overall survival (OS). The secondary end points included the larynx-preservation rate, progression-free survival (PFS),
View details →Negative / Null Result ReportOpen accessMedicine
Tongtian Ni, Ying Chen, Bing Zhao et al. · 2021 · Scientific Reports
Severe acute pancreatitis (SAP) is a life-threatening disease. Fluid Resuscitation Via Colon (FRVC) may be a complementary therapy for early controlled fluid resuscitation. But its clinical application has not been reported. This study aims to explore the impact of FRVC on SAP. All SAP patients with the first onset within 72 h admitted to the hospital were included from January 2014 to December 2018 through electronic databases of Ruijin hospital and were divided into FRVC group (n = 103) and non-FRVC group (n = 78). The clinical differences before and after the therapy between the two groups
View details →Negative / Null Result ReportImmunology and Microbiology
Duan S. Loy, Bradley J. Blitvich, John Dustin Loy et al. · 2015 · Journal of General Virology
Infectious myonecrosis virus (IMNV) causes significant economic losses in farmed shrimp, where associated mortality in ponds can reach 70 %. To explore host/pathogen interactions, a next-generation sequencing approach using lymphoid organ…
View details →Negative / Null Result ReportOpen accessMedicine
Magnus Lindskog, Anna Laurell, Anders Kjellman et al. · 2022 · European Urology Open Science
Background: The prognosis of patients with synchronous metastatic renal cell carcinoma (mRCC) is poor. Whereas single-agent tyrosine kinase inhibition (TKI) is clearly insufficient, the effects can be enhanced by combinations with immune checkpoint inhibitors. Innovative treatment options combining TKI and other immune-stimulating agents could prove beneficial. Objective: To evaluate the clinical effects on metastatic disease when two doses of allogeneic monocyte-derived dendritic cells (ilixadencel) are administrated intratumorally followed by nephrectomy and treatment with sunitinib compared
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Ethan S. Lindgren, Onur Çil, A. S. Verkman et al. · 2022 · Current Ophthalmology Reports
Purpose of Review: To review the role of ocular surface epithelial (corneal and conjunctival) ion transporters in the pathogenesis and treatment of dry eye disease (DED). Recent Findings: Currently, anti-inflammatory agents are the mainstay of DED treatment, though there are several agents in development that target ion transport proteins on the ocular surface, acting by pro-secretory or anti-absorptive mechanisms to increase the tear fluid Film volume. Activation or inhibition of selected ion transporters can alter tear fluid osmolality, driving water transport onto the ocular surface via osm
View details →Negative / Null Result ReportOpen accessMedicine
András Komócsi, Dániel Aradi, Tibor Szük et al. · 2018 · The American Journal of Cardiology
Evidence is conflicting regarding the clinical benefits of selecting P2Y12 inhibitors based on platelet function testing (PFT). Between March 1, 2013 and March 1, 2014, we collected clinical characteristics and platelet function data in a…
View details →Negative / Null Result ReportOpen accessMedicine
Helen L. Reeves, John Reicher, Georgia Priona et al. · 2022 · Frontline Gastroenterology
Objective: Hepatocellular carcinoma (HCC) deaths are rising alarmingly. Many patients are unsuitable for available therapies. Poor response rates further hamper outcomes for those that are. Selective internal radiation therapy (SIRT) offers hope, although which patients benefit over standard approaches remains unclear. Design/method: As a quality/service improvement, we audited consecutive patients treated with SIRT (2015-2020) by the Newcastle upon Tyne Hospitals National Health Service Foundation Trust HCC multidisciplinary team. Indications, Barcelona clinic liver cancer (BCLC) stage, treat
View details →Negative / Null Result ReportOpen accessNursing
Shih‐Wei Huang, Horng‐Chyuan Lin, Yu-Feng Chou et al. · 2022 · Nutrients
Prolonged mechanical ventilation (PMV) is associated with poor outcomes and a high economic cost. The association between protein intake and PMV has rarely been investigated in previous studies. This study aimed to investigate the impact of protein intake on weaning from mechanical ventilation. Patients with the PMV (mechanical ventilation ≥6 h/day for ≥21 days) at our hospital between December 2020 and April 2022 were included in this study. Demographic data, nutrition records, laboratory data, weaning conditions, and survival data were retrieved from the patient’s electronic medical records.
View details →Negative / Null Result ReportOpen accessNeuroscience
Susanne Clinch, Stacie Hudgens, Elizabeth Gibbons et al. · 2023 · Patient Related Outcome Measures
Purpose: Adaptive Behavior Scale is often used in autism spectrum disorder (ASD) trials. The Adaptive Behavior Composite Score (VABS-ABC) is the standardized overall score (the average of the Socialization, Communication and Daily Living…
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Oleh V. Lushchak, Dmytro V. Gospodaryov, Ihor S. Yurkevych et al. · 2015 · Archives of Insect Biochemistry and Physiology
Aging is often associated with accumulation of oxidative damage in proteins and lipids. However, some studies do not support this view, raising the question of whether high levels of oxidative damage are associated with lifespan. In the…
View details →Negative / Null Result ReportOpen accessEngineering
Christoph Leo, Maria C. Rizzi, N M Bos et al. · 2021 · Frontiers in Bioengineering and Biotechnology
This study has analyzed sex-specific differences in pedestrian and cyclist accidents involving passenger cars. The most frequently injured body regions, types of injuries, which show sex-specific differences and the general accident parameters of females and males were compared. Accident data from three different European countries (Austria, Netherlands, Sweden) were analyzed. The current analysis shows that for both, females and males, pedestrian and cyclist injuries are sustained mainly to the body regions head, thorax, upper extremities and lower extremities. The results show that the odds
View details →Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology
Alexander A. Rashin, Marcin J. Domagalski, Michael T. Zimmermann et al. · 2014 · Acta Crystallographica Section D Biological Crystallography
Validation of general ideas about the origins of conformational differences in proteins is critical in order to arrive at meaningful functional insights. Here, principal component analysis (PCA) and distance difference matrices are used to…
View details →Negative / Null Result ReportOpen accessMedicine
Yang� Yang, Shengru Liang, Yuqian Li et al. · 2019 · Neuropsychiatric Disease and Treatment
BACKGROUND: Both protective and therapeutic functions of insulin-like growth factor-1 (IGF-1) in brain injury have been reported, but its effects on cognitive sequelae after septic encephalopathy (SE) remain unclear. MATERIALS AND METHODS:…
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Stephen F. Hall, Rebecca J. Griffiths, Brian O'Sullivan et al. · 2019 · Head & Neck
Abstract Background Distant metastases (DM) are a leading cause of death for patients with oropharyngeal cancer (OPSCC). The objective of this study was to compare the rates of DM after chemoradiotherapy (CRT) and radiotherapy alone (RT)…
View details →Negative / Null Result ReportOpen accessMedicine
Stefan Bräuer, Iñaki Schniewind, Elisabeth Dinter et al. · 2025 · Acta Neuropathologica Communications
Parkinson's disease (PD) is a heterogeneous neurodegenerative disorder with a wide range of clinical phenotypes. Pathologically, it is characterized by neuronal inclusions containing misfolded, fibrillar alpha-synuclein (aSyn). Prion-like properties of aSyn contribute to the spread of aSyn pathology throughout the nervous system as the disease progresses. Utilizing these properties, seed amplification assays (SAA) enable the detection of aSyn pathology in living patients. We hypothesized that structurally distinct aSyn aggregates, or strains, may underlie the clinical heterogeneity of PD. To t
View details →Negative / Null Result ReportOpen accessMedicine
Shih-Chun Chang, Chi-Ming Tang, Puo‐Hsien Le et al. · 2021 · Cancers
Whether gastric adenocarcinoma (GC) patients with adjacent organ invasion (T4b) benefit from aggressive surgery involving pancreatic resection (PR) remains unclear. This study aimed to clarify the impact of PR on survival in patients with locally advanced resectable GC. Between 1995 and 2017, patients with locally advanced GC undergoing radical-intent gastrectomy with and without PR were enrolled and stratified into four groups: group 1 (G1), pT4b without pancreatic resection (PR); group 2 (G2), pT4b with PR; group 3 (G3), positive duodenal margins without Whipple’s operation; and group 4 (G4)
View details →Negative / Null Result ReportOpen accessPsychology
Christian Greiner, Vincent Besch, Marissa Bouchard-Boivin et al. · 2025 · PLoS ONE
The concept of epistemic trust is gaining traction in the mental health field. Epistemic trust is thought to play a foundational role as a resilience factor against the development and maintenance of psychopathology by fostering social learning. The primary aim of this study was to validate the French-language version of the Epistemic Trust, Mistrust and Credulity Questionnaire (ETMCQ). We further sought to replicate previously reported associations with key developmental and psychological factors (childhood trauma, mentalizing and attachment) and test for epistemic trust's potential mediating
View details →Negative / Null Result ReportOpen accessNeuroscience
Meenakshi Khosla, Leila Wehbe · 2026 · Nature Communications
Neuroscientific studies rely heavily on a-priori hypotheses, which can bias results toward existing theories. Here, we use a hypothesis-neutral approach to study category selectivity in higher visual cortex. Using only stimulus images and their associated fMRI activity, we constrain randomly initialized neural networks to predict voxel activity. Despite no category-level supervision, units in the trained networks act as detectors for semantic concepts like 'faces' or 'words', providing solid empirical support for categorical selectivity. Importantly, this selectivity is mostly maintained when
View details →Negative / Null Result ReportOpen accessMedicine
Akram I. Ahmad, Samita Garg, Jeffrey Jacobs et al. · 2026 · JAMA Internal Medicine
Importance: Glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP) are known to increase the risk of retained gastric contents. High-quality data are lacking to guide periprocedure management of GLP-1 and GIP agonists. Objective: To compare the risk of clinically significant residual gastric volume (RGV) in patients who continue vs hold 1 dose of weekly or daily GLP-1 and GIP agonists prior to sedation. Design, Setting, and Participants: This randomized, single-masked clinical trial conducted at 2 large tertiary referral centers in the US included patients under
View details →Negative / Null Result ReportOpen accessMedicine
Gabriela-Florentina Tapos, Ioan-Alexandru Cîmpeanu, Iasmina-Alexandra Predescu et al. · 2026 · Diseases
BACKGROUND/OBJECTIVES: Cardiovascular diseases (CVDs) remain the leading cause of morbidity and mortality worldwide and increasingly are recognized as a continuum of interconnected conditions rather than isolated entities. METHODS: A structured narrative literature search was performed in PubMed, Scopus, and Google Scholar for publications from 2015 to 2025 using combinations of different keywords: "cardiovascular disease spectrum", "multi-omics", "precision cardiology", "machine learning", and "artificial intelligence in cardiology". RESULTS: Evidence was synthesized across seven major cluste
View details →Negative / Null Result ReportOpen accessEconomics, Econometrics and Finance
Christoph K. Becker, Peter Duersch, Thomas Eife · 2026 · Quantitative Economics
In density forecasts, respondents are asked to assign probabilities to a response scale with pre‐specified ranges of inflation. In two large‐scale experiments, one conducted in the US and one in Germany, we show how the specifics of the…
View details →Negative / Null Result ReportOpen accessMedicine
Krithik Vishwanath, Anton Alyakin, Mrigayu Ghosh et al. · 2026 · Nature Medicine
Specialized clinical artificial intelligence (AI) tools are entering medical practice despite scarce independent evaluation. We quantitatively evaluate two clinical AI tools, OpenEvidence and UpToDate Expert AI, built on large language models (LLMs) against three frontier LLMs: GPT-5.2, Gemini 3.1 Pro and Claude Opus 4.6. Our evaluation has three stages: (1) 500 MedQA questions testing medical knowledge, (2) 500 HealthBench items measuring alignment with clinicians and (3) the real clinical queries (RCQ) benchmark, built from 100 de-identified queries from physicians to a general-purpose langu
View details →Negative / Null Result ReportOpen accessImmunology and Microbiology
John C. Martinez, Francesco Morandini, Cheyenne Rechsteiner et al. · 2026 · Nature Aging
Aging-associated inflammation, or 'inflammaging" is a driver of multiple age-associated diseases. Cyclic GMP-AMP Synthase (cGAS) is a cytosolic DNA sensor that functions to activate interferon response upon detecting viral DNA in the…
View details →Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology
Alicja W. Wojciechowska, Jakub W. Wojciechowski, Gert Vriend et al. · 2026 · Scientific Reports
Abstract While three-dimensional structures of globular and transmembrane forms are available for many amyloid proteins, structures of their amyloid forms are scarce in the PDB. Amyloids pose major challenges for both experimental…
View details →Negative / Null Result ReportOpen accessAgricultural and Biological Sciences
Avilash Singh Yadav, Lilan Hong, Patrick M. Klees et al. · 2026 · Current Biology
Nature exhibits organs of various shapes and forms, ranging from smooth to undulated morphologies. How cells coordinate their growth to produce smoothly shaped leaves and leaf-like organs such as sepals remains unclear. We identified a mutant, as2-7D, that exhibits ectopic expression of ASYMMETRIC LEAVES 2 (AS2) on the outer epidermis. Our analysis reveals that ectopic AS2 expression causes the outer epidermis of as2-7D sepals to buckle during early stages of sepal development. Buckling is caused by conflicting cell growth directions and unequal tissue stiffness across the epidermal layers. Ov
View details →Negative / Null Result ReportOpen accessMaterials Science
L L Sun, Yisa Zhao, Xiyu Caomeng et al. · 2026 · ChemistryOpen
Traditional blending electrospinning has a series of issues during implementation, and the corresponding monolithic nanofibers can always be updated through the intentional design of core-sheath nanostructures. In this study, a modified coaxial electrospinning approach was employed to refine the electrospinning process by eliminating abnormal phenomena, while simultaneously imparting core-sheath nanostructures and improved transdermal finasteride (FIN) delivery performance. Using an electrospinnable ethylcellulose (EC) solution containing FIN as the core fluid and an unspinnable polyvinylpyrro
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