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Browse the failure-mode index

12,367 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

The V Protein of Canine Distemper Virus Is Required for Virus Replication in Human Epithelial Cells

Noriyuki Otsuki, Yuichiro Nakatsu, Toru Kubota et al. · 2013 · PLoS ONE

Canine distemper virus (CDV) becomes able to use human receptors through a single amino acid substitution in the H protein. In addition, CDV strains possessing an intact C protein replicate well in human epithelial H358 cells. The present study showed that CDV strain 007Lm, which was isolated from lymph node tissue of a dog with distemper, failed to replicate in H358 cells, although it possessed an intact C protein. Sequence analyses suggested that a cysteine-to-tyrosine substitution at position 267 of the V protein caused this growth defect. Analyses using H358 cells constitutively expressing

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Negative / Null Result ReportOpen accessMedicine

Treatment of chronic leg ulcers with a hydrocolloid dressing

P. Gamborg Nielsen, S Madsen, L. Strömberg · 2026 · Acta Dermato Venereologica

The effects of a hydrocolloid dressing (Comfeel Ulcus) on the physical environment of chronic leg ulcers in 58 consecutive out-patients were investigated. Patients were subdivided into two groups of which Group 1 included 31 (53.4%) and…

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Negative / Null Result ReportOpen accessMedicine

Single-cell transcriptomic atlas of Alzheimer's disease middle temporal gyrus reveals region, cell type, and sex specificity of gene expression with novel genetic risk for MERTK in female

Le Zhang, Tianyu Liu, Chuan H. He et al. · 2026 · Journal of Alzheimer s Disease

Abstract Alzheimer’s disease, the most common age-related neurodegenerative disease, is closely associated with both amyloid-ß plaque and neuroinflammation. Two thirds of Alzheimer’s disease patients are females and they have a higher…

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Negative / Null Result ReportOpen accessMedicine

Revisión de los métodos de evaluación de la actividad antioxidante in vitro del vino y valoración de sus efectos in vivo

Ma Soledad Fernández-Pachón, Débora Villaño, Ana M. Troncoso et al. · 2026 · Archivos Latinoamericanos de Nutrición

El objetivo de esta revisión es el estudio de la actividad antioxidante del vino, analizando los distintos métodos que se han empleado en su evaluación. Esta actividad se relacionará, tanto desde el punto de vista cualitativo como…

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Replication FailureOpen accessMedicine

The Effect of Genetic Variation on the Placental Transcriptome in Humans

Triin Kikas, Kristiina Rull, Robin N. Beaumont et al. · 2019 · Frontiers in Genetics

= 6830) did not replicate these findings. In summary, the study emphasizes the role of genetic variation in driving the transcriptome profile of the human placenta and the importance to explore further its functional implications.

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Negative / Null Result ReportOpen accessMedicine

Effect of Lactobacillus plantarum supplementation on trimethylamine-N-oxide levels in 30 patients with atherosclerotic cardiovascular disease: A double-blind randomized controlled trial

Natalia Spasova, Desislava Somleva, Bozhidar Krastev et al. · 2024 · Folia Medica

Introduction : Trimethylamine-N-oxide (TMAO) is a metabolite produced by intestinal microbiota. It is well recognized as an independent risk marker for cardiovascular and renal diseases and mortality. Aim : The aim of the present study was…

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Negative / Null Result ReportOpen accessMedicine

GLP-1 and the Degenerating Brain: Exploring Mechanistic Insights and Therapeutic Potential

Osama Sobhi Moaket, Sarah Eyad Obaid, Fawaz Eyad Obaid et al. · 2025 · International Journal of Molecular Sciences

Neurodegenerative disorders, including Alzheimer's disease (AD), Parkinson's disease (PD), stroke, and depression, are marked by progressive neuronal dysfunction and loss, yet current treatments remain largely symptomatic with limited disease-modifying efficacy. Glucagon-like peptide-1 (GLP-1), an incretin hormone traditionally associated with metabolic regulation, has emerged as a promising neuroprotective agent. Its receptor, GLP-1R, is expressed in key brain regions implicated in cognition, emotion, and motor control, including the hippocampus, frontal cortex, and substantia nigra. GLP-1R a

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Negative / Null Result ReportOpen accessMedicine

Antibody-drug conjugates in gynecologic cancer: current landscape, clinical data, and emerging targets

Juan He, Mi Chen, Jia Li et al. · 2025 · International Journal of Gynecological Cancer

Antibody-drug conjugates (ADCs) are an emerging class of targeted therapies that combine monoclonal antibodies with potent cytotoxic payloads, demonstrating significant potential in the treatment of gynecologic malignancies. By selectively targeting tumor-associated antigens, ADCs enable precise drug delivery while minimizing off-target toxicity. Currently, mirvetuximab soravtansine and tisotumab vedotin have been approved by the Food and Drug Administration for the treatment of folate receptor-alpha-positive, platinum-resistant ovarian cancer and recurrent cervical cancer, respectively, exhib

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Negative / Null Result ReportOpen accessMedicine

Overcoming resistance to PD-1 and CTLA-4 blockade mechanisms and therapeutic strategies

Xiaodong Wang, Jing He, Gouping Ding et al. · 2025 · Frontiers in Immunology

Immune checkpoint inhibitors (ICIs) targeting PD-1 and CTLA-4 have achieved groundbreaking clinical success in multiple cancers; however, a large proportion of patients experience primary or acquired resistance. This review synthesizes the complex mechanisms underlying resistance to PD-1/CTLA-4 blockade and surveys emerging strategies to overcome them. Resistance arises from multifaceted interactions among tumor-intrinsic alterations (e.g., epigenetic silencing of antigen presentation machinery via EZH2/PRC2, oncogenic pathway-driven upregulation of PD-L1, genetic loss of IFNγ pathway componen

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Failed Experiment ReportOpen accessMedicine

Bone Health Outcomes from the International, Multicenter, Randomized, Phase 3, Placebo-Controlled D-CARE Study Assessing Adjuvant Denosumab in Early Breast Cancer

Robert E. Coleman, Ying Zhou, Danielle Jandial et al. · 2021 · Advances in Therapy

INTRODUCTION: D-CARE, an international, phase 3, randomized, double-blind, placebo-controlled study in women with early-stage breast cancer at high risk of disease recurrence, failed to meet its primary endpoint-improvement in bone…

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Negative / Null Result ReportOpen accessMedicine

Estimated GFR and Mortality in Older Men: Are All eGFR Formulae Equal?

Muna Canales, Terri Blackwell, Areef Ishani et al. · 2016 · American Journal of Nephrology

<b><i>Background:</i></b> Recently, the first estimated glomerular filtration rate (eGFR) formula specifically developed for community-dwelling older adults, the Berlin Initiative Study Equation 2 (BIS2), was…

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Negative / Null Result ReportOpen accessMedicine

Association of maternal pre-pregnancy BMI and breastfeeding with NAFLD in young adults: a parental negative control study

Kushala Abeysekera, James Orr, Paul Madley‐Dowd et al. · 2021 · The Lancet Regional Health - Europe

BACKGROUND: The importance of the maternal-infant dyad in the genesis of nonalcoholic fatty liver disease (NAFLD) is of increasing interest. The Avon Longitudinal Study of Parents and Children (ALSPAC) showed that at age 24, 1 in 5 had…

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Negative / Null Result ReportOpen accessMedicine

Treatment of 4T1 Metastatic Breast Cancer with Combined Hypofractionated Irradiation and Autologous T-Cell Infusion

Alexander Filatenkov, Jeanette Baker, Antonia Müller et al. · 2014 · Radiation Research

The goal of this study was to determine whether a combination of local tumor irradiation and autologous T-cell transplantation can effectively treat metastatic 4T1 breast cancer in mice. BALB/c mice were injected subcutaneously with…

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Replication FailureMedicine

A multicenter randomized controlled trial (RCT) of adjuvant chemotherapy (CT) in nasopharyngeal carcinoma (NPC) with residual plasma EBV DNA (EBV DNA) following primary radiotherapy (RT) or chemoradiation (CRT).

Anthony T.�C. Chan, Edwin P. Hui, Roger K.C. Ngan et al. · 2017 · Journal of Clinical Oncology

6002 Background: The benefit of adjuvant CT in NPC is unclear. Post-RT EBV DNA predicts poor survival and may be a biomarker of subclinical residual disease. We conducted a biomarker driven RCT using post-RT EBV DNA to select high risk NPC…

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Negative / Null Result ReportMedicine

Clinically Significant Differences in Ki-67 Proliferation Index Between Primary and Metastases in Resected Pancreatic Neuroendocrine Tumors

Sebastian Richards-Taylor, Charles Tilley, Eleanor Jaynes et al. · 2017 · Pancreas

OBJECTIVE: Pancreatic neuroendocrine tumors (NETs) (pNETs) have a varied prognosis according to their grade. The European Neuroendocrine Tumor Society grading system uses assessment of the proliferation index via Ki-67 immunohistochemistry…

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Negative / Null Result ReportOpen accessMedicine

DOES HIPEC IMPROVE OUTCOMES IN GASTRIC CANCER PATIENTS TREATED WITH PERIOPERATIVE CHEMOTHERAPY AND RADICAL SURGERY? A PROPENSITY-SCORE MATCHED ANALYSIS

Thiago Pereira Diniz, Wilson Luiz da Costa, Victor Hugo Fonseca de Jesus et al. · 2019 · Journal of Surgical Oncology

BACKGROUND: Hyperthermic intraperitoneal chemotherapy (HIPEC) has been associated with improved survival when compared with surgery alone for non-metastatic gastric cancer patients in randomized trials and meta-analyses. However, little evidence is available regarding the use of HIPEC in nonmetastatic patients who are treated with perioperative chemotherapy and radical surgery. The aim of this study was to investigate the putative survival benefit of HIPEC in the subgroup of gastric cancer patients treated with perioperative chemotherapy and surgery. PATIENTS AND METHODS: This was a retrospect

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Negative / Null Result ReportOpen accessMedicine

Fatty acid amide hydrolase binding is inversely correlated with amygdalar functional connectivity: a combined positron emission tomography and magnetic resonance imaging study in healthy individuals

Duncan G.J. Green, Jinhee Kim, Stephen J. Kish et al. · 2021 · Journal of Psychiatry and Neuroscience

Background: Upregulation of the endocannabinoid enzyme fatty acid amide hydrolase (FAAH) has been linked to abnormal activity in frontoamygdalar circuits, a hallmark of posttraumatic stress disorder. We tested the hypothesis that FAAH…

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Negative / Null Result ReportOpen accessMedicine

Significant differences in T cell receptor repertoires in lung adenocarcinomas with and without epidermal growth factor receptor mutations

Eisaku Miyauchi, Tatsuo Matsuda, Kazuma Kiyotani et al. · 2018 · Cancer Science

Recent clinical trials of non-small cell lung cancer with immune checkpoint inhibitors revealed that patients with epidermal growth factor receptor (EGFR) mutations had more unfavorable outcomes compared with those with wild-type EGFR.…

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Negative / Null Result ReportOpen accessMedicine

Performance of arthroscopic irrigation systems assessed with automatic blood detection

Gabriëlle J. M. Tuijthof, M. M. de Vaal, I. N. Sierevelt et al. · 2011 · Knee Surgery Sports Traumatology Arthroscopy

PURPOSE: During arthroscopies, bleeding episodes occur as a result of tissue damage. Irrigation systems assist in minimizing these disturbances. The performance of three arthroscopic irrigation systems in clearing bleeding episodes was…

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Negative / Null Result ReportOpen accessMedicine

Guapiaçu virus, a new insect-specific flavivirus isolated from two species of Aedes mosquitoes from Brazil

Geovani de Oliveira Ribeiro, Antônio Charlys da Costa, Danielle Elise Gill et al. · 2021 · Scientific Reports

Classical insect-flaviviruses (cISFVs) and dual host-related insect-specific flavivirus (dISFV) are within the major group of insect-specific flavivirus. Remarkably dISFV are evolutionarily related to some of the pathogenic flavivirus, such as Zika and dengue viruses. The Evolutionary relatedness of dISFV to flavivirus allowed us to investigate the evolutionary principle of host adaptation. Additionally, dISFV can be used for the development of flavivirus vaccines and to explore underlying principles of mammalian pathogenicity. Here we describe the genetic characterization of a novel putative

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Negative / Null Result ReportOpen accessMedicine

Barriers to Participation in a Community-Based Program to Control Transmission of Taenia solium in Peru

Michelle Beam, Angela G. Spencer, Lauralee Fernandez et al. · 2018 · American Journal of Tropical Medicine and Hygiene

larvae (neurocysticercosis) is a leading cause of preventable epilepsy worldwide. Effective and sustainable strategies to control parasite transmission in rural endemic communities are needed to prevent the disease. Surveillance and…

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Negative / Null Result ReportOpen accessMedicine

Significant Association of Serum Adiponectin and Creatine Kinase-MB Levels in ST-Segment Elevation Myocardial Infarction

Tomoaki Natsukawa, Norikazu Maeda, Shiro Fukuda et al. · 2017 · Journal of Atherosclerosis and Thrombosis

AIMS: Adiponectin, an adipocyte-specific secretory protein, abundantly exists in the blood stream while its concentration paradoxically decreases in obesity. Hypoadiponectinemia is one of risks of cardiovascular diseases. However, impact…

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Negative / Null Result ReportOpen accessMedicine

Treatment with the copper compound CuATSM has no significant effect on motor neuronal pathology in patients with ALS

Yue Yang, Dominic B. Rowe, Heather McCann et al. · 2023 · Neuropathology and Applied Neurobiology

AIMS: Although the orally available brain-penetrant copper compound CuATSM has demonstrated promising effects in SOD1-linked mouse models, the impact of CuATSM on disease pathology in patients with amyotrophic lateral sclerosis (ALS) remains unknown. METHODS: The present study set out to address this deficit by performing the first pilot comparative analysis of ALS pathology in patients that had been administered CuATSM and riluzole [N = 6 cases composed of ALS-TDP (n = 5) and ALS-SOD1 (n = 1)] versus riluzole only [N = 6 cases composed of ALS-TDP (n = 4) and ALS-SOD1 (n = 2)]. RESULTS: Our re

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Negative / Null Result ReportOpen accessMedicine

The American Association for the Surgery of Trauma renal injury grading scale: Implications of the 2018 revisions for injury reclassification and predicting bleeding interventions

Sorena Keihani, Douglas Rogers, Bryn Putbrese et al. · 2019 · The Journal of Trauma: Injury, Infection, and Critical Care

BACKGROUND: In 2018, the American Association for the Surgery of Trauma (AAST) published revisions to the renal injury grading system to reflect the increased reliance on computed tomography scans and non-operative management of high-grade…

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Negative / Null Result ReportOpen accessMedicine

Neural protein gamma-synuclein interacting with androgen receptor promotes human prostate cancer progression

Junyi Chen, Jiao Li, Chuanliang Xu et al. · 2012 · BMC Cancer

BACKGROUND: Gamma-synuclein (SNCG) has previously been demonstrated to be significantly correlated with metastatic malignancies; however, in-depth investigation of SNCG in prostate cancer is still lacking. In the present study, we evaluated the role of SNCG in prostate cancer progression and explored the underlying mechanisms. METHODS: First, alteration of SNCG expression in LNCaP cell line to test the ability of SNCG on cellular properties in vitro and vivo whenever exposing with androgen or not. Subsequently, the Dual-luciferase reporter assays were performed to evaluate whether the role of

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Negative / Null Result ReportOpen accessMedicine

Machine learning prediction model of acute kidney injury after percutaneous coronary intervention

Toshiki Kuno, Takahisa Mikami, Yuki Sahashi et al. · 2022 · Scientific Reports

Acute kidney injury (AKI) after percutaneous coronary intervention (PCI) is associated with a significant risk of morbidity and mortality. The traditional risk model provided by the National Cardiovascular Data Registry (NCDR) is useful for predicting the preprocedural risk of AKI, although the scoring system requires a number of clinical contents. We sought to examine whether machine learning (ML) techniques could predict AKI with fewer NCDR-AKI risk model variables within a comparable PCI database in Japan. We evaluated 19,222 consecutive patients undergoing PCI between 2008 and 2019 in a Ja

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Negative / Null Result ReportOpen accessMedicine

Cystatin C– and Creatinine-Based Estimates of Renal Function and Their Value for Risk Prediction in Patients with Acute Coronary Syndrome: Results from the PLATelet Inhibition and Patient Outcomes (PLATO) Study

Axel Åkerblom, Lars Wallentin, Anders Larsson et al. · 2013 · Clinical Chemistry

BACKGROUND: The estimated glomerular filtration rate (eGFR) independently predicts cardiovascular death or myocardial infarction (MI) and can be estimated by creatinine and cystatin C concentrations. We evaluated 2 different cystatin C…

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