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Browse the failure-mode index

12,240 real negative results, null findings, and replication failures in Medicine. 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

Relaxin Does Not Improve Angiotensin II-Induced Target-Organ Damage

Nadine Haase, Julianna Rugor, Łukasz Przybył et al. · 2014 · PLoS ONE

Relaxin is a corpus-luteum produced protein hormone with vasodilatatory, anti-fibrotic, and angiogenic properties that are opposite to angiotensin (Ang) II. We investigated whether or not relaxin ameliorates Ang II-induced target-organ damage. We used double transgenic rats harboring both human renin and angiotensinogen genes (dTGR) that develop severe hypertension, target-organ damage, and die untreated within 7-8 weeks. Recombinant relaxin at a low (26 μg/kg/d) and a high dose (240 μg/kg/d) was given to 4 week-old dTGR and age-matched Sprague-Dawley rats (SD). Systolic blood pressure increas

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Negative / Null Result ReportOpen accessMedicine

Significant association factors of bone mineral density in Taiwan adults

Yuh‐Feng Wang, Tzyy‐Ling Chuang, Mei‐Hua Chuang et al. · 2019 · Tzu Chi Medical Journal

OBJECTIVE: To examine the biofactors associated with bone mineral density (BMD) in southern Taiwanese adults. MATERIALS AND METHODS: The medical records of 3242 adults who underwent health examinations between June 2014 and February 2018…

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Negative / Null Result ReportMedicine

Marijuana and Workplace Safety: An Examination of Urine Drug Tests

James W. Price · 2014 · Journal of Addictive Diseases

Although the decriminalization of recreational marijuana and medical marijuana laws provide a compassionate answer for treatment-related issues in patients' lives, they leave questions open as to the impact on other realms of life, such as…

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Negative / Null Result ReportOpen accessMedicine

4-Aminobutyrate Aminotransferase (ABAT): Genetic and Pharmacological Evidence for an Involvement in Gastro Esophageal Reflux Disease

Johan Jirholt, Bengt Åsling, Paul Hammond et al. · 2011 · PLoS ONE

Gastro-esophageal reflux disease (GERD) is partly caused by genetic factors. The underlying susceptibility genes are currently unknown, with the exception of COL3A1. We used three independent GERD patient cohorts to identify GERD susceptibility genes. Thirty-six families, demonstrating dominant transmission of GERD were subjected to whole genome microsatellite genotyping and linkage analysis. Five linked regions were identified. Two families shared a linked region (LOD 3.9 and 2.0) on chromosome 16. We used two additional independent GERD patient cohorts, one consisting of 219 trios (affected

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Negative / Null Result ReportMedicine

Radiotherapy Improves Survival of Patients With Lymphovascular Invasion in pT1b Esophageal Squamous Cell Cancer After Endoscopic Submucosal Dissection

Xu Yang, Lina Zhao, Anhui Shi et al. · 2023 · The American Journal of Gastroenterology

INTRODUCTION: Adjuvant radiotherapy is recommended for pT1b esophageal squamous cell cancer (ESCC) after endoscopic submucosal dissection (ESD). However, it is unclear whether additional radiotherapy can improve patient survival. This…

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Negative / Null Result ReportOpen accessMedicine

Should Transplantation Still Be Considered for Ph1-Negative Myeloproliferative Neoplasms in Transformation?

Mathilde Ruggiu, Bruno Cassinat, Jean‐Jacques Kiladjian et al. · 2020 · Biology of Blood and Marrow Transplantation

BCR-ABL-negative myeloproliferative neoplasms (MPNs) in transformation have a dismal prognosis, and allogeneic hematopoietic stem cell transplantation (allo-HSCT) is considered the sole curative therapeutic option. We retrospectively…

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Negative / Null Result ReportOpen accessMedicine

Pharmacological Treatment of Intermittent Claudication Does Not Have a Significant Effect on Gait Impairments During Claudication Pain

Jennifer M. Yentes, Jessie M. Huisinga, Sara A. Myers et al. · 2012 · Journal of Applied Biomechanics

Peripheral arterial disease (PAD) is a manifestation of atherosclerosis resulting in intermittent claudication (IC) or leg pain during physical activity. Two drugs (cilostazol and pentoxifylline) are approved for treatment of IC. Our…

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Failed Experiment ReportOpen accessMedicine

Detection of Two Highly Diverse Peribunyaviruses in Mosquitoes from Palenque, Mexico

Anne Kopp, Alexandra Hübner, Florian Zirkel et al. · 2019 · Viruses

. Orthobunyaviruses and pacuviruses are mainly transmitted by blood-feeding insects and infect a variety of vertebrates whereas herbeviruses and shangaviruses have a host range restricted to insects. Here, we tested mosquitoes from a tropical rainforest in Mexico for infections with peribunyaviruses. We identified and characterized two previously unknown viruses, designated Baakal virus (BKAV) and Lakamha virus (LAKV). Sequencing and de novo assembly of the entire BKAV and LAKV genomes revealed that BKAV is an orthobunyavirus and LAKV is likely to belong to a new genus. LAKV was almost equidis

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Negative / Null Result ReportOpen accessMedicine

The FGA Thr312Ala polymorphism and risk of intracerebral haemorrhage in Polish and Greek populations

Jeremiasz Jagiełła, Efthimios Dardiotis, Jerzy Gąsowski et al. · 2014 · Neurologia i Neurochirurgia Polska

BACKGROUND AND PURPOSE: Spontaneous intracerebral haemorrhage (ICH) is the most fatal form of stroke with the highest morbidity and disability rate of all stroke types. Recent data suggest that the genetic background has a sizeable and…

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Negative / Null Result ReportOpen accessMedicine

Outcomes among Hospitalized Chronic Kidney Disease Patients with COVID-19

Minesh Khatri, David M. Charytan, Sam Parnia et al. · 2021 · Kidney360

Abstract Key Points Patients with ESKD had higher crude mortality rates than those without CKD, but thiswas no longer significant after multivariate adjustment. Patients with ESKD, when directly compared with those with nondialysis CKD,…

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Negative / Null Result ReportOpen accessMedicine

Prostate volume does not provide additional predictive value to prostate health index for prostate cancer or clinically significant prostate cancer: results from a multicenter study in China

Danfeng Xu, Rong Na, Da Huang et al. · 2020 · Asian Journal of Andrology

To evaluate whether prostate volume (PV) would provide additional predictive utility to the prostate health index (phi) for predicting prostate cancer (PCa) or clinically significant prostate cancer, we designed a prospective,…

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Negative / Null Result ReportOpen accessMedicine

Evaluation and Application of a PET Tracer in Preclinical and Phase 1 Studies to Determine the Brain Biodistribution of Minzasolmin (UCB0599)

Joël Mercier, Massimo Bani, Anny‐Odile Colson et al. · 2023 · Molecular Imaging and Biology

Abstract Purpose Minzasolmin (UCB0599) is an orally administered, small molecule inhibitor of ASYN misfolding in development as a potential disease-modifying therapy for Parkinson’s disease. Here we describe the preclinical development of a radiolabeled tracer and results from a phase 1 study using the tracer to investigate the brain distribution of minzasolmin. Procedures In the preclinical study, two radiolabeling positions were investigated on the S -enantiomer of minzasolmin (UCB2713): [ 11 C]methylamine UCB2713 ([ 11 C- N -CH 3 ]UCB2713) and [ 11 C]carbonyl UCB2713 ([ 11 C-CO]UCB2713). Ma

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Negative / Null Result ReportOpen accessMedicine

Customized Prediction of Short Length of Stay Following Elective Cardiac Surgery in Elderly Patients Using a Genetic Algorithm

Joon Lee, Sapna Govindan, Leo Anthony Celi et al. · 2013 · World Journal of Cardiovascular Surgery

OBJECTIVE: To develop a customized short LOS (<6 days) prediction model for geriatric patients receiving cardiac surgery, using local data and a computational feature selection algorithm. DESIGN: Utilization of a machine learning algorithm in a prospectively collected STS database consisting of patients who received cardiac surgery between January 2002 and June 2011. SETTING: Urban tertiary-care center. PARTICIPANTS: Geriatric patients aged 70 years or older at the time of cardiac surgery. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Predefined morbidity and mortality events were collec

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Negative / Null Result ReportOpen accessMedicine

Ulinastatin did not reduce mortality in elderly multiple organ failure patients: a retrospective observational study in a single center ICU

Masatoshi Uchida, Toshikazu Abe, Kazuyuki Ono et al. · 2017 · Acute Medicine & Surgery

Aim Our aim was to evaluate the effect of ulinastatin on 28‐day mortality in patients who developed multiple organ failure ( MOF ) related to their acute illness and were admitted to the intensive care unit ( ICU ). Methods We carried out a retrospective observational study of MOF patients in a general ICU of a tertiary care hospital in Japan from January 2009 to December 2012. The primary outcome was 28‐day all‐cause mortality. Secondary outcomes were ventilator‐free days, ICU ‐free days, and vasopressor‐free days at day 28. We investigated the association between ulinastatin treatment and ou

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Negative / Null Result ReportOpen accessMedicine

Nonopioid vs opioid analgesics after impacted third-molar extractions

Cecile A. Feldman, Janine Fredericks-Younger, Paul J. Desjardins et al. · 2025 · The Journal of the American Dental Association

BACKGROUND: Opioids are still being prescribed to manage acute postsurgical pain. Unnecessary opioid prescriptions can lead to addiction and death, as unused tablets are easily diverted. METHODS: To determine whether combination nonopioid analgesics are at least as good as opioid analgesics, a multisite, double-blind, randomized, stratified, noninferiority comparative effectiveness trial was conducted, which examined patient-centered outcomes after impacted mandibular third-molar extraction surgery. Participants were randomized to receive 5 mg of hydrocodone with 300 mg of acetaminophen (opioi

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Negative / Null Result ReportOpen accessMedicine

Devimistat plus chemotherapy vs chemotherapy alone for older relapsed or refractory patients with AML: results of the ARMADA trial

Timothy S. Pardee, Bayard L. Powell, Richard A. Larson et al. · 2024 · Blood Neoplasia

Acute myeloid leukemia (AML) is an aggressive cancer of the myeloid lineage. Outcomes in older patients are poor with high rates of resistant and relapsed disease. Devimistat is a lipoic acid analog that inhibits mitochondrial metabolism.…

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Negative / Null Result ReportOpen accessMedicine

Urine proteomic insights from the belimumab in lupus nephritis trial

Emma Weeding, Andrea Fava, Chandra Mohan et al. · 2022 · Lupus Science & Medicine

Objective Urine proteomic approaches have shown promise in identifying biological pathways in lupus nephritis (LN) which are not captured on renal histopathology or by measurement of proteinuria alone. We investigated how the urine…

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Negative / Null Result ReportMedicine

Differential susceptibility to effects of the home environment on motor developmental outcomes of preschool children: low birthweight status as a susceptibility factor

Jennifer Chun-Li Wu, Tung‐liang Chiang · 2015 · Early Child Development and Care

Low birthweight (LBW) children tend to have higher risks of developmental problems. According to differential susceptibility hypothesis, these putatively vulnerable children may also disproportionately benefit from positive environmental…

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Negative / Null Result ReportOpen accessMedicine

Predictors of Survival, Treatment Modalities, and Clinical Outcomes of Diffuse Large B-Cell Lymphoma in Patients Older Than 70 Years Still an Unmet Medical Need in 2024 Based on Real-World Evidence

Luís Alberto de Pádua Covas Lage, Rita Novello de Vita, Lucas Bassolli de Oliveira Alves et al. · 2024 · Cancers

Background: Diffuse large B-cell lymphoma (DLBCL) especially affects the older population. Old (≥60 years) and very old age (≥80 years) DLBCL patients often present high-risk molecular alterations, lower tolerability to conventional immunochemotherapy, and poor clinical outcomes. In this scenario, attenuated therapeutic strategies, such as the R-MiniCHOP and R-MiniCHOP of the elderly regimens, have emerged for this particularly fragile population. However, the responses, clinical outcomes, and toxicities of these regimens currently remain poorly understood, mainly because these individuals are

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Negative / Null Result ReportOpen accessMedicine

Alexithymia and the Evaluation of Emotionally Valenced Scenes

Sarah N. Rigby, Lorna S. Jakobson, Pauline M. Pearson et al. · 2020 · Frontiers in Psychology

Alexithymia is a personality trait characterized by difficulties identifying and describing feelings (DIF and DDF) and an externally-oriented thinking style (EOT). The primary aim of the present study was to investigate links between alexithymia and the evaluation of emotional scenes. We also investigated whether viewers’ evaluations of emotional scenes were better predicted by specific alexithymic traits or by individual differences in sensory processing sensitivity (SPS). Participants (N = 106) completed measures of alexithymia and SPS along with a task requiring speeded judgments of the ple

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Negative / Null Result ReportOpen accessMedicine

Kinetics of the West Nile virus induced transcripts of selected cytokines and Toll-like receptors in equine peripheral blood mononuclear cells

Muhammad Jasim Uddin, Willy W. Suen, Angela M. Bosco‐Lauth et al. · 2016 · Veterinary Research

West Nile virus (WNV) is one of the most common causes of epidemic viral encephalitis in horses worldwide. Peripheral blood mononuclear cells (PBMCs) are amongst the first to encounter the virus following a mosquito bite. This study aimed to elucidate the transcription kinetics of cytokine, Toll-like receptor (TLRs) and TLRs-associated genes following WNV challenge of equine PBMCs. PBMCs were challenged with an Australian strain of WNV (WNVNSW2011) and transcriptomes were quantified at 2, 6, 12 and 24 h post-infection (pi) using qRT-PCR. Type I and II interferons (IFNα, β and γ) mRNA transcrip

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Negative / Null Result ReportOpen accessMedicine

Interfering With DNA Decondensation as a Strategy Against Mycobacteria

Enzo M. Scutigliani, Edwin R. Scholl, Anita E. Grootemaat et al. · 2018 · Frontiers in Microbiology

Tuberculosis is once again a major global threat, leading to more than 1 million deaths each year. Treatment options for tuberculosis patients are limited, expensive and characterized by severe side effects, especially in the case of multi-drug resistant forms. Uncovering novel vulnerabilities of the pathogen is crucial to generate new therapeutic strategies. Using high resolution microscopy techniques, we discovered one such vulnerability of Mycobacterium tuberculosis. We demonstrate that the DNA of M. tuberculosis can condense under stressful conditions such as starvation and antibiotic trea

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Negative / Null Result ReportOpen accessMedicine

Data-driven profiles of attention-deficit/hyperactivity disorder using objective and ecological measures of attention, distractibility, and hyperactivity

Pilar Fernández‐Martín, Rocío Rodríguez‐Herrera, Rosa Cánovas et al. · 2023 · European Child & Adolescent Psychiatry

In the past two decades, the traditional nosology of attention-deficit/hyperactivity disorder (ADHD) has been criticized for having insufficient discriminant validity. In line with current trends, in the present study, we combined a data-driven approach with the advantages of virtual reality aiming to identify novel behavioral profiles of ADHD based on ecological and performance-based measures of inattention, impulsivity, and hyperactivity. One hundred and ten Spanish-speaking participants (6-16 years) with ADHD (medication-naïve, n = 57) and typically developing participants (n = 53) complete

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Negative / Null Result ReportOpen accessMedicine

Increasing Enzyme Mannose-6-Phosphate Levels but Not Miglustat Coadministration Enhances the Efficacy of Enzyme Replacement Therapy in Pompe Mice

Allyson L. Anding, Sofia Kinton, Kaitlyn Baranowski et al. · 2023 · Journal of Pharmacology and Experimental Therapeutics

Pompe disease is a rare glycogen storage disorder caused by a deficiency in the lysosomal enzyme acid α-glucosidase, which leads to muscle weakness, cardiac and respiratory failure, and early mortality. Alglucosidase alfa, a recombinant…

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