A searchable index of real negative results, null findings, and replication failures from the published literature — so you can learn what didn't work before repeating it.
WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record (title, authors, DOI) compiled from open scholarly databases, with the abstract shown in full only where the paper is openly licensed (e.g. Creative Commons); otherwise a short excerpt is shown for reference under fair use. WASTE classifies each work by failure type; classifications are automated and approximate.
19808 results in Negative / Null Result Report · page 117 of 661
Zhengwu Lei, Dan Guo · 2021 · Blood Coagulation & Fibrinolysis
The purpose of this research is to investigate the correlation between coagulation parameters and survival on patients with breast cancer. A total of 244 patients with breast cancer and 84 patients with metastatic advanced breast cancer…
Pate, KM, Pohlmeyer, C, Walker-Sperling, V et al. · 2015 · Journal of the International AIDS Society
Introduction Sensitive assays are needed for detection of residual HIV in patients with undetectable plasma viral loads to determine if eradication strategies are effective. The gold standard quantitative viral outgrowth assay (QVOA) underestimates the magnitude of the viral reservoir, while sensitive PCR-based assays lack the ability to distinguish replication competent from defective virus. We sought to determine whether xenograft of leukocytes from HIV-1 infected patients with undetectable plasma viral loads into severely immunocompromised mice would result in viral amplification and measur
A.R.J.V. Vossen, H.H. van der Zee, N. Davelaar et al. · 2018 · Journal of the European Academy of Dermatology and Venereology
Abstract Background Treatment with apremilast has recently demonstrated clinically meaningful improvement in moderate hidradenitis suppurativa ( HS ). Objective To evaluate the change in expression of inflammatory markers in lesional skin…
Yoshitaka Shimada, Yoshihito Takahashi, Hiroyoshi Iguchi et al. · 2013 · Journal of Medical Case Reports
Abstract Introduction Liver cavernous hemangioma is the most common noncystic hepatic lesion, and a hemangioma that undergoes degeneration and fibrous replacement is called a hepatic sclerosed hemangioma. Case presentation A 63-year-old…
Shan Ren, Wenjing Wang, Junfeng Lu et al. · 2022 · Frontiers in Immunology
Objective In clinical practice, a substantial proportion of chronic hepatitis B virus (HBV) infections that do not fit into any of the usual immune states are considered to be in the “grey zone (GZ)”. This study aimed to investigate the…
Juliana Chen, Harpreet Kaur, Joanna Jaques et al. · 2022 · Clinical Obesity
Summary Despite the obesity epidemic, there are relatively few multidisciplinary obesity services in Australia, and only limited data on the effectiveness of these services. The aim of this study was to evaluate the effectiveness of a…
Jorge G. Ruiz, Allen D. Andrade, Ramanakumar Anam et al. · 2013 · The Diabetes Educator
Purpose The purpose of this study was to investigate whether computer-based programmed instruction (CPI) with a dynamic avatar (DA) improves retention of medication information better than text (controls) or better than CPI with text…
Johan P. Mackenbach, Marina Karanikolos, Jamie Lopez Bernal et al. · 2015 · Scandinavian Journal of Public Health
Background: The upturn of life expectancy in Central and Eastern Europe in the 1990s, after a period of stagnation or even decline, is one of the main events in European population history of the late 20th century, but has not been…
Winston A. Haynes, Kathy Kamath, Rebecca Waitz et al. · 2021 · Frontiers in Immunology
Identification of the antigens associated with antibodies is vital to understanding immune responses in the context of infection, autoimmunity, and cancer. Discovering antigens at a proteome scale could enable broader identification of…
Melissa A. Snyder, Kieran McCann, Maryline J. Lalande et al. · 2016 · Journal of Neurochemistry
Abstract The sigma‐1 receptor (σ‐1R) is a chaperone protein located at the endoplasmic reticulum ( ER ) mitochondrial interface with roles in neuroprotection and cognition. Increasing evidence suggests that loss of σ‐1R function could…
Lauren N. Forrest, Ross C. Jacobucci, Carlos M. Grilo · 2020 · Psychological Medicine
Abstract Background Eating-disorder severity indicators should theoretically index symptom intensity, impairment, and level of needed treatment. Two severity indicators for binge-eating disorder (BED) have been proposed (categories of…
Hao Huang, Wei Song, Xue‐Yan Liu · 2021 · Global Change Biology
Abstract Anthropogenic nitrogen (N) emissions and deposition have been increasing over past decades. However, spatiotemporal variations of N deposition levels and major sources remain unclear in many regions, which hinders making…
Volodymyr Dvornyk, Irina Ponomarenko, Oksana Minyaylo et al. · 2021 · PLOS ONE
Background and purpose The study analyzed the association of functionally significant polymorphisms of matrix metalloproteinases ( MMPs ) genes with the development of gastric ulcer (GU) in Caucasians from Central Russia. Methods The 781…
Anne M Rowat, Catriona Graham, Martin Dennis · 2018 · BMJ Open Gastroenterology
Objective To establish the likely accuracy of pH testing to identify gastric aspirates at different pH cut-offs to confirm nasogastric tube placement. Methods This prospective observational study included a convenience sample of adult…
Aydin Demircioğlu · 2023 · Diagnostics
In radiomics, utilizing features extracted from pretrained deep networks could result in models with a higher predictive performance than those relying on hand-crafted features. This study compared the predictive performance of models…
Veeral Ajmera, Na Wang, Hanfei Xu et al. · 2023 · Alimentary Pharmacology & Therapeutics
Summary Background Adiposity amplifies the genetic risk of non‐alcoholic fatty liver disease (NAFLD). Aim We evaluated the association between overweight‐years, a cumulative exposure based on the product of the duration and severity of…
Kevin J. Mitchell, Darren Dahly, Dorothy Bishop · 2025 · Neuron
The idea that the gut microbiome causally contributes to autism has gained currency in the scientific literature and popular press. Support for this hypothesis comes from three lines of evidence: human observational studies, preclinical experiments in mice, and human clinical trials. We critically assessed this literature and found that it is beset by conceptual and methodological flaws and limitations that undermine claims that the gut microbiome is causally involved in the etiology or pathophysiology of autism.
Claudia Monaco, Coleen A. McNamara, Bram Slütter et al. · 2025 · Physiological Reviews
Cardiovascular disease is the global number one cause of mortality and morbidity. The majority of cardiovascular diseases are caused by atherosclerosis, a lipid-driven, inflammatory disease of the middle- and large-sized arteries. The…
Jiacheng Ma, Shengrui Liu, Yuting Pei · 2025 · Scientific Reports
Sports injury prediction is crucial for university football player health, yet existing research predominantly focuses on professional athletes and lacks interpretability. Using the Kaggle "University Football Injury Prediction Dataset"…
Clare Balboni, Robin Burgess, Benjamin Olken · 2025 · The Review of Economic Studies
Abstract Environmental externalities—uncompensated damages imposed on others—lie at the root of climate change, pollution, deforestation and biodiversity loss. Empirical evidence is limited, however, as to how externalities drive private decision making. We study one such behaviour, illegal tropical forest fires, using 15 years of daily satellite data covering over 107,000 fires across Indonesia. Weather-induced variation in fire spread risk and variation in who owns surrounding land allow us to identify how far externalities influence the decision to use fire. Relative to when all spread risk
Luísa Sório Flor, Cory N Spencer, Jack Cagney et al. · 2025 · The Lancet
BACKGROUND: Violence against women and against children are human rights violations with lasting harms to survivors and societies at large. Intimate partner violence (IPV) and sexual violence against children (SVAC) are two major forms of such abuse. Despite their wide-reaching effects on individual and community health, these risk factors have not been adequately prioritised as key drivers of global health burden. Comprehensive x§and reliable estimates of the comparative health burden of IPV and SVAC are urgently needed to inform investments in prevention and support for survivors at both nat
Amélie Cabirol, Andrew Quinn, Julie Schafer et al. · 2026 · Proceedings of the National Academy of Sciences
Abstract The composition of the gut microbiota has recently been identified as a cause of cognitive variability in humans and animals. Germ-free individuals and individuals exposed to an antibiotic treatment show severe alteration of their learning and memory performance measured in various cognitive tasks. While different species of bacteria are known to interact in the gut, their cumulative or synergistic effects on cognitive performance remain elusive. Here we established a defined bacterial community - composed of core members of the corbiculate bee microbiota - which enhances honey bees’
Yu Zhang, Yuxi Liu, Yanping Li et al. · 2026 · JAMA
Importance: Evidence linking coffee and tea to cognitive health remains inconclusive, and most studies fail to differentiate caffeinated from decaffeinated coffee. Objective: To investigate associations of coffee and tea intake with…
Anna Kankaanpää, Asko Tolvanen, Laura Joensuu et al. · 2025 · European Journal of Epidemiology
OBJECTIVES: The association between leisure-time physical activity (LTPA) and a lower risk of mortality is susceptible to bias from multiple sources. We investigated the potential of biological ageing to mediate the association between long-term LTPA and mortality and whether the methods used to account for reverse causality affect the interpretation of this association. METHODS: Study participants were twins from the older Finnish Twin Cohort (n = 22,750; 18-50 years at baseline). LTPA was assessed using questionnaires in 1975, 1981 and 1990. The mortality follow-up lasted until 2020 and biol
Roohi Chaudhary, Ralf Weiskirchen, Marcelo Ehrlich et al. · 2025 · Frontiers in Pharmacology
The transforming growth factor-β (TGF-β) superfamily (TGF-β-SF) comprises over 30 cytokines, including TGF-β, activins/inhibins, bone morphogenetic proteins (BMPs), and growth differentiation factors (GDFs). These cytokines play critical roles in liver function and disease progression. Here, we discuss Smad-dependent (canonical) and non-Smad pathways activated by these cytokines in a hepatocellular context. We highlight the connection between the deregulation of these pathways or the balance between them and key hepatocellular processes (e.g., proliferation, apoptosis, and epithelial-mesenchym
Ihsen Abid, Nesrine Gafsi · 2025 · International Journal of Energy Economics and Policy
The purpose of this research paper is to examine the long-term dynamics between economic growth, technological integration, and environmental sustainability in Saudi Arabia from 1995 to 2023. It aims to identify the impact of key economic, technological, and environmental indicators, including GDP, ICT sector performance, foreign direct investment (FDI), trade, and ecological footprint, on the country’s development trajectory. The research employs a quantitative approach, using VAR-VECM models to analyze time-series data. The study applies Granger causality tests and impulse response functions
Aliasghar Azma, Yakun Liu, Eden Tatek Alemu · 2026 · Scientific Reports
The aim of this study was to evaluate groundwater quality the Marvdasht aquifer using the Groundwater Quality Index (GWQI), which was determined using a conventional method and also predicted using three machine learning algorithms:…
Yuqi Ren, Miao Cheng, Hongbin He et al. · 2025 · Nature Communications
CO2-to-hydrocarbon fuel conversion via artificial photosynthesis is limited by catalyst poisoning under high O2 partial pressures and sluggish C2-product formation. Herein, Ru0.6Cu1(Cu0–Cu1+)/CeO2 catalysts with adaptive O2 tolerance are…
Soichiro Sasaki, Takayuki Matsuura, Rei Takahashi et al. · 2026 · PubMed
Regular exercise has recognized health benefits, partly because it reportedly lowers the levels of the oxidation products of proteins and DNA at rest, in contrast with the effect of acute exercise. However, when we compared oxidative…
Takahiro Ezaki, Kazumichi Ohtsuka, Mohcine Chraibi et al. · 2026 · Qucosa (Saxon State and University Library Dresden)
To better design safe and comfortable urban spaces, understanding the nature of human crowd movement is important. However, precise interactions among pedestrians are difficult to measure in the presence of their complex decision-making processes and many related factors. While extensive studies on pedestrian flow through bottlenecks and corridors have been conducted, the dominant mode of interaction in these scenarios may not be relevant in different scenarios. Here, we attempt to decipher the factors that affect human reactions to other individuals from a different perspective. We conducted