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Browse the failure-mode index

21,681 real negative results, null findings, and replication failures. Search the index →

WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record compiled from open scholarly databases; the abstract is shown in full only where the paper is openly licensed, otherwise a short excerpt under fair use. Classifications are automated and approximate.

Negative / Null Result ReportOpen accessMedicine

Family-Based Association Analysis of Alcohol Dependence Criteria and Severity

Leah Wetherill, Manav Kapoor, Arpana Agrawal et al. · 2013 · Alcoholism Clinical and Experimental Research

BACKGROUND: Despite the high heritability of alcohol dependence (AD), the genes found to be associated with it account for only a small proportion of its total variability. The goal of this study was to identify and analyze phenotypes…

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Negative / Null Result Report

“We couldn’t think in the box if we tried. We can’t even find the damn box”: A qualitative study of the lived experiences of autistic adults and relatives of autistic adults

Tracy L. Finch, Joan Mackintosh, Alex Petrou et al. · 2022 · PLOS ONE

Autistic children grow to become autistic adults, and autism is increasingly diagnosed in adulthood and later life. This qualitative study aimed to understand experiences of autism throughout adulthood. A national cohort study of autistic…

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Negative / Null Result ReportOpen accessPsychology

When failure fails to be productive: probing the effectiveness of productive failure for learning beyond STEM domains

Valentina Nachtigall, Katja Serova, Nikol Rummel · 2020 · Instructional Science

Abstract The current work builds on research demonstrating the effectiveness of Productive Failure (PF) for learning. While the effectiveness of PF has been demonstrated for STEM learning, it has not yet been investigated whether PF is also beneficial for learning in non-STEM domains. Given this need to test PF for learning in domains other than mathematics or science, and the assumption that features embodied in a PF design are domain-independent, we investigated the effect of PF on learning social science research methods. We conducted two quasi-experimental studies with 212 and 152 10th gra

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Negative / Null Result ReportOpen accessComputer Science

Does affective touch influence the virtual reality full body illusion?

Jutta R. de Jong, Anouk Keizer, Manja M. Engel et al. · 2017 · Experimental Brain Research

The sense of how we experience our physical body as our own represents a fundamental component of human self-awareness. Body ownership can be studied with bodily illusions which are generated by inducing a visuo-tactile conflict where individuals experience illusionary ownership over a fake body or body part, such as a rubber hand. Previous studies showed that different types of touch modulate the strength of experienced ownership over a rubber hand. Specifically, participants experienced more ownership after the rubber hand illusion was induced through affective touch vs non-affective touch.

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Negative / Null Result ReportOpen accessNeuroscience

Reproducibility of brain-cognition relationships using three cortical surface-based protocols: An exhaustive analysis based on cortical thickness

Kenia Martínez, Sarah K. Madsen, Anand A. Joshi et al. · 2015 · Human Brain Mapping

People differ in their cognitive functioning. This variability has been exhaustively examined at the behavioral, neural and genetic level to uncover the mechanisms by which some individuals are more cognitively efficient than others.…

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Negative / Null Result ReportOpen accessMedicine

Tetrahydrobiopterin Protects Against Hypertrophic Heart Disease Independent of Myocardial Nitric Oxide Synthase Coupling

Toru Hashimoto, Vidhya Sivakumaran, Ricardo Carnicer et al. · 2016 · Journal of the American Heart Association

BACKGROUND: Nitric oxide synthase uncoupling occurs under conditions of oxidative stress modifying the enzyme's function so it generates superoxide rather than nitric oxide. Nitric oxide synthase uncoupling occurs with chronic pressure…

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Negative / Null Result ReportOpen accessEconomics, Econometrics and Finance

Relationship of Stock Price and Monetary Variables of Asian Small Open Emerging Economy: Evidence from Thailand

Nararuk Boonyanam · 2014 · International Journal of Financial Research

Monetary variables contain information to forecast stock price is still controversial. This paper examines the relationship between stock price and monetary variables in Thailand which is an Asian small open emerging economy. Monetary variables are consumer price index, nominal bilateral exchange rate in term of bath per US dollar, narrow money, and 14 days repurchased rate, employing a multivariate cointegration, VECM, variance decomposition and impulse response analysis covering the period of January 1999 to December 2012 with 168 observations. The study found a long run relationship between

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Negative / Null Result ReportMedicine

Particulate ECM biomaterial ink is 3D printed and naturally crosslinked to form structurally-layered and lubricated cartilage tissue mimics

Jeanne E. Barthold, Kaitlin P. McCreery, Jaylene Martinez et al. · 2022 · Biofabrication

Abstract Articular cartilage is a layered tissue with a complex, heterogeneous structure and lubricated surface which is challenging to reproduce using traditional tissue engineering methods. Three-dimensional printing techniques have…

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Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

ClpP-deletion impairs the virulence of Legionella pneumophila and the optimal translocation of effector proteins

Beibei Zhao, Xianghui Li, Yonglun Zeng et al. · 2016 · BMC Microbiology

BACKGROUND: The opportunistic bacterial pathogen Legionella pneumophila uses substrate effectors of Dot/Icm type IVB secretion system (T4BSS) to accomplish survival and replication in amoebae cells and mammalian alveolar macrophages. During the conversion between its highly resistant, infectious dormant form and vigorously growing, uninfectious replicative form, L. pneumophila utilizes a complicated regulatory network in which proteolysis may play a significant role. As a highly conserved core protease, ClpP is involved in various cellular processes as well as virulence in bacteria, and has be

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Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

Excess diacylglycerol at the endoplasmic reticulum disrupts endomembrane homeostasis and autophagy

Dan Li, Shu-Gao Yang, Cheng-Wen He et al. · 2020 · BMC Biology

BACKGROUND: When stressed, eukaryotic cells produce triacylglycerol (TAG) to store nutrients and mobilize autophagy to combat internal damage. We and others previously reported that in yeast, elimination of TAG synthesizing enzymes inhibits autophagy under nitrogen starvation, yet the underlying mechanism has remained elusive. RESULTS: Here, we show that disruption of TAG synthesis led to diacylglycerol (DAG) accumulation and its relocation from the vacuolar membrane to the endoplasmic reticulum (ER). We further show that, beyond autophagy, ER-accumulated DAG caused severe defects in the endom

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Negative / Null Result ReportOpen accessMedicine

Centromedian Nucleus of the Thalamus Deep Brain Stimulation for Genetic Generalized Epilepsy: A Case Report and Review of Literature

Shruti Agashe, David B. Burkholder, Keith Starnes et al. · 2022 · Frontiers in Human Neuroscience

There is a paucity of treatment options for cognitively normal individuals with drug resistant genetic generalized epilepsy (GGE). Centromedian nucleus of the thalamus (CM) deep brain stimulation (DBS) may be a viable treatment for GGE. Here, we present the case of a 27-year-old cognitively normal woman with drug resistant GGE, with childhood onset. Seizure semiology are absence seizures and generalized onset tonic clonic (GTC) seizures. At baseline she had 4-8 GTC seizures per month and weekly absence seizures despite three antiseizure medications and vagus nerve stimulation. A multidisciplin

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Negative / Null Result ReportOpen accessMedicine

Tumor regression mediated by oncogene withdrawal or erlotinib stimulates infiltration of inflammatory immune cells in EGFR mutant lung tumors

Deborah Ayeni, Braden Miller, Alexandra Kuhlmann et al. · 2019 · Journal for ImmunoTherapy of Cancer

BACKGROUND: Epidermal Growth Factor Receptor (EGFR) tyrosine kinase inhibitors (TKIs) like erlotinib are effective for treating patients with EGFR mutant lung cancer; however, drug resistance inevitably emerges. Approaches to combine immunotherapies and targeted therapies to overcome or delay drug resistance have been hindered by limited knowledge of the effect of erlotinib on tumor-infiltrating immune cells. METHODS: Using mouse models, we studied the immunological profile of mutant EGFR-driven lung tumors before and after erlotinib treatment. RESULTS: We found that erlotinib triggered the re

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Negative / Null Result ReportOpen accessMedicine

Prognostic factors of BRAF V600E colorectal cancer with liver metastases: a retrospective multicentric study

Sahir Javed, Stéphane Benoist, Patrick Devos et al. · 2022 · World Journal of Surgical Oncology

BACKGROUND: BRAF V600E-mutant colorectal cancers (CRCs) are associated with shorter survival than BRAF wild-type tumors. Therapeutic decision-making for colorectal liver metastases (CRLM) harboring this mutation remains difficult due to the scarce literature. The aim was to study a large cohort of BRAF V600E-mutant CRLM patients in order to see if surgery extend overall survival among others prognostic factors. METHODS: BRAF V600E-mutant CRCs diagnosed with liver-only metastases, resected or not, were retrospectively identified between April 2008 and December 2017, in 25 French centers. Clinic

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Negative / Null Result Report

Unmasking the potential of the angiotensin AT 2 receptor as a therapeutic target in hypertension in men and women: What we know and what we still need to find out

Lucinda M Hilliard, Katrina M Mirabito, Kate M Denton · 2013 · Clinical and Experimental Pharmacology and Physiology

Summary Major sex differences exist in the development and progression of hypertension and cardiovascular disease. Prior to menopause, women have lower arterial pressure and, furthermore, are protected from hypertension and cardiovascular…

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Negative / Null Result ReportOpen accessMedicine

Evaluation of outcome and prognostic factors in patients of glioblastoma multiforme: A single institution experience

Narendra Kumar, Pankaj Kumar, Shabab Angurana et al. · 2013 · Journal of Neurosciences in Rural Practice

AIMS: We present retrospective analysis of patients of glioblastoma multiforme (GBM) and discuss clinical characteristics, various treatment protocols, survival outcomes, and prognostic factors influencing survival. MATERIALS AND METHODS:…

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Negative / Null Result ReportOpen accessMedicine

Significant differences when using creatinine, modification of diet in renal disease, or cystatin C for estimating glomerular filtration rate in ICU patients

Miklós Lipcsey, Mia Furebring, Sten Rubertsson et al. · 2010 · Upsala Journal of Medical Sciences

BACKGROUND: Renal dysfunction is associated with increased morbidity and mortality in intensive care patients. In most cases the glomerular filtration rate (GFR) is estimated based on serum creatinine and the Modification of Diet in Renal Disease (MDRD) formula, but cystatin C-estimated GFR is being used increasingly. The aim of this study was to compare creatinine and MDRD and cystatin C-estimated GFR in intensive care patients. METHODS: Retrospective observational study was performed, on patients treated within the general intensive care unit (ICU) during 2004-2006, in a Swedish university h

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Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

Teplizumab in Type 1 Diabetes Mellitus: An Updated Review

Simran Thakkar, Aditi Chopra, Lakshmi Nagendra et al. · 2023 · touchREVIEWS in Endocrinology

Type 1 diabetes mellitus (T1DM) is a chronic autoimmune condition characterized by the irreversible destruction of the β cells of the pancreas, which leads to a lifelong dependency on exogenous insulin. Despite the advancements in insulin…

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Negative / Null Result ReportOpen accessMedicine

The use of a proposed updated EARL harmonization of 18F-FDG PET-CT in patients with lymphoma yields significant differences in Deauville score compared with current EARL recommendations

John Ly, David Minarik, Lars Edenbrandt et al. · 2019 · EJNMMI Research

The Deauville score (DS) is a clinical tool, based on the comparison between lesion and reference organ uptake of 18F-fluorodeoxyglucose (FDG), used to stratify patients with lymphoma into categories reflecting their disease status. With a plethora of positron emission tomography with computed tomography (PET-CT) hard- and software algorithms, standard uptake value (SUV) in lesions and reference organs may differ which affects DS classification and therefore medical treatment. The EANM Research Ltd. (EARL) harmonization program from the European Association of Nuclear Medicine (EANM) partly mi

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Negative / Null Result ReportOpen accessMedicine

A Phase 2 clinical trial of PF-05212377 (SAM-760) in subjects with mild to moderate Alzheimer’s disease with existing neuropsychiatric symptoms on a stable daily dose of donepezil

Terence Fullerton, Brendon Binneman, William David et al. · 2018 · Alzheimer s Research & Therapy

Symptomatic benefits have been reported for 5-HT6 receptor antagonists in Alzheimer’s disease (AD) trials. SAM-760 is a potent and selective 5-HT6 receptor antagonist that has demonstrated central 5-HT6 receptor saturation in humans at a dose of 30 mg. This was a randomized, double-blind, placebo-controlled, parallel-group, multicenter trial evaluating the efficacy and safety of SAM-760 30 mg once daily (QD) for 12 weeks in subjects with AD on a stable regimen of donepezil 5 to 10 mg QD. The study included an interim analysis with stopping rules for futility or efficacy after 180 subjects comp

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Negative / Null Result ReportOpen accessMedicine

Ultrasound guidance for femoral venous access in patients undergoing pulmonary vein isolation: A quasi‐randomized study

Péter Kupó, T Riesz, László Sághy et al. · 2023 · Journal of Cardiovascular Electrophysiology

INTRODUCTION: Routine ultrasound (US) guidance for femoral venous access to decrease vascular complications of atrial fibrillation (AF) ablation procedures has been advocated. However, the benefit has not been unequivocally demonstrated by randomized-trial data. METHODS: Consecutive patients undergoing pulmonary vein isolation (PVI) on uninterrupted anticoagulant treatment were included. A quasi-random allocation to either US-guided or conventional puncture group was based on which of the two procedure rooms the patient was scheduled in, with only one of the rooms equipped with a US machine in

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Negative / Null Result ReportOpen accessSocial Sciences

Associations between social media use and cognitive abilities: Results from a large-scale study of adolescents

Stefan Stieger, Sabine Wunderl · 2022 · Computers in Human Behavior

In adolescence, smartphone use in general and social media use in particular has often been associated with negative effects, such as higher anxiety levels and body dissatisfaction. Other outcomes – such as fundamental cognitive abilities and skills (e.g., intelligence, information processing, spatial perception) – have rarely been the focus of research. Here, we analysed data from a large sample of adolescents (12–16 years; N > 12,000) who performed a series of psychometric tests ranging from intelligence, spatial perception, and information processing, to practical numeracy, and compared the

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Negative / Null Result ReportMedicine

Significant association between TNFAIP3 inactivation and biased immunoglobulin heavy chain variable region 4‐34 usage in mucosa‐associated lymphoid tissue lymphoma

Sarah Moody, Leire Escudero‐Ibarz, Ming Wang et al. · 2017 · The Journal of Pathology

Both antigenic drive and genetic change play critical roles in the development of mucosa-associated lymphoid tissue (MALT) lymphoma, but neither alone is sufficient for malignant transformation, and lymphoma development critically depends…

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