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11,287 real negative results, null findings, and replication failures in Medicine · Negative / Null Result Report. 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

Hepatocyte-specific IL11 cis-signaling drives lipotoxicity and underlies the transition from NAFLD to NASH

Jinrui Dong, Sivakumar Viswanathan, Eleonora Adami et al. · 2021 · Nature Communications

IL11 is important for fibrosis in non-alcoholic steatohepatitis (NASH) but its role beyond the stroma in liver disease is unclear. Here, we investigate the role of IL11 in hepatocyte lipotoxicity. Hepatocytes highly express IL11RA and secrete IL11 in response to lipid loading. Autocrine IL11 activity causes hepatocyte death through NOX4-derived ROS, activation of ERK, JNK and caspase-3, impaired mitochondrial function and reduced fatty acid oxidation. Paracrine IL11 activity stimulates hepatic stellate cells and causes fibrosis. In mouse models of NASH, hepatocyte-specific deletion of Il11ra1

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Negative / Null Result ReportOpen accessMedicine

Increased Risk of Second Primary Malignancy in Pediatric and Young Adult Patients Treated with Radioactive Iodine for Differentiated Thyroid Cancer

Jennifer L. Marti, Kunal Jain, Luc G.T. Morris · 2015 · Thyroid

INTRODUCTION: The long-term sequelae of radioactive iodine (RAI) for differentiated thyroid cancer (DTC) in pediatric and young adult patients are not well-defined. Epidemiologic analyses of second primary malignancy (SPM) risk have only…

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Negative / Null Result ReportOpen accessMedicine

Cognitive Lifestyle and Long-Term Risk of Dementia and Survival After Diagnosis in a Multicenter Population-based Cohort

Michael Valenzuela, Carol Brayne, Perminder S. Sachdev et al. · 2011 · American Journal of Epidemiology

An active cognitive lifestyle has been linked to dementia incidence and survival, but the separate and combined effects of its subcomponents are not clear. Data were derived from the Medical Research Council Cognitive Function and Ageing…

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Negative / Null Result ReportMedicine

Clinical Characteristics, Disease Activity, and Patient‐Reported Outcomes in Psoriatic Arthritis Patients With Dactylitis or Enthesitis: Results From the Corrona Psoriatic Arthritis/Spondyloarthritis Registry

Philip J. Mease, Chitra Karki, Jacqueline B. Palmer et al. · 2017 · Arthritis Care & Research

Objective To characterize psoriatic arthritis (PsA) patients with dactylitis or enthesitis and evaluate the associations of these manifestations with disease activity and patient‐reported outcomes. Methods Using the Corrona…

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Negative / Null Result ReportOpen accessMedicine

Bevacizumab Prevents Brain Metastases Formation in Lung Adenocarcinoma

Aysegül Ilhan‐Mutlu, Matthias Osswald, Yunxiang Liao et al. · 2016 · Molecular Cancer Therapeutics

Patients with nonsquamous non-small cell lung cancer (nsNSCLC; largely lung adenocarcinoma) are at high risk of developing brain metastases. Preclinical data suggested that anti-VEGF-A therapy may prevent the formation of nsNSCLC brain…

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Negative / Null Result ReportOpen accessMedicine

Immune Infiltration in Invasive Lobular Breast Cancer

Christine Desmedt, Roberto Salgado, Marco Fornili et al. · 2017 · JNCI Journal of the National Cancer Institute

Background: Invasive lobular breast cancer (ILC) is the second most common histological subtype of breast cancer after invasive ductal cancer (IDC). Here, we aimed at evaluating the prevalence, levels, and composition of tumor-infiltrating…

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Negative / Null Result ReportOpen accessMedicine

A high eating frequency is associated with an overall healthy lifestyle in middle-aged men and women and reduced likelihood of general and central obesity in men

Isabel Holmbäck, Ulrika Ericson, Bo Gullberg et al. · 2010 · British Journal Of Nutrition

The role of eating frequency in obesity development is debated. Therefore, we investigated the association between eating frequency, BMI and waist circumference (WC), as well as how eating frequency is related to diet composition and…

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Negative / Null Result ReportOpen accessMedicine

A Natural Product Telomerase Activator Lengthens Telomeres in Humans: A Randomized, Double Blind, and Placebo Controlled Study

Laura Salvador, Gunasekaran Singaravelu, Calvin B. Harley et al. · 2016 · Rejuvenation Research

TA-65 is a dietary supplement based on an improved formulation of a small molecule telomerase activator that was discovered in a systematic screening of natural product extracts from traditional Chinese medicines. This study summarizes the findings on telomere length (TL) changes from a randomized, double blind, placebo controlled study of TA-65 over a 1 year period. The study was conducted on 117 relatively healthy cytomegalovirus-positive subjects aged 53-87 years old. Subjects taking the low dose of TA-65 (250 U) significantly increased TL over the 12 months period (530 ± 180 bp; p = 0.005)

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Negative / Null Result ReportOpen accessMedicine

Enterococcus faecalis Subverts and Invades the Host Urothelium in Patients with Chronic Urinary Tract Infection

Harry Horsley, James Malone‐Lee, David Holland et al. · 2013 · PLoS ONE

Bacterial urinary tract infections (UTI) are a major growing concern worldwide. Uropathogenic Escherichia coli has been shown to invade the urothelium during acute UTI in mice and humans, forming intracellular reservoirs that can evade antibiotics and the immune response, allowing recurrence at a later date. Other bacterial species, such as Staphylococcus saprophyticus, Klebsiella pneumonia and Salmonella enterica have also been shown to be invasive in acute UTI. However, the role of intracellular infection in chronic UTI causing more subtle lower urinary tract symptoms (LUTS), a particular pr

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Negative / Null Result ReportOpen accessMedicine

Association Between Anxiety and Depression and Gastroesophageal Reflux Disease: Results From a Large Cross-sectional Study

Ji Min Choi, Jong In Yang, Seung Joo Kang et al. · 2018 · Journal of Neurogastroenterology and Motility

BACKGROUND/AIMS: The different clinical manifestations of gastroesophageal reflux disease (GERD) may be influenced by associated psychological factors. We evaluated the psychological status (anxiety and depression) according to each…

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Negative / Null Result ReportOpen accessMedicine

Comparison of Machine Learning Methods and Conventional Logistic Regressions for Predicting Gestational Diabetes Using Routine Clinical Data: A Retrospective Cohort Study

Yunzhen Ye, Yu Xiong, Qiongjie Zhou et al. · 2020 · Journal of Diabetes Research

BACKGROUND: Gestational diabetes mellitus (GDM) contributes to adverse pregnancy and birth outcomes. In recent decades, extensive research has been devoted to the early prediction of GDM by various methods. Machine learning methods are flexible prediction algorithms with potential advantages over conventional regression. OBJECTIVE: The purpose of this study was to use machine learning methods to predict GDM and compare their performance with that of logistic regressions. METHODS: We performed a retrospective, observational study including women who attended their routine first hospital visits

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Negative / Null Result ReportOpen accessMedicine

Phase II Trial of Pemetrexed and Bevacizumab in Patients With Recurrent or Metastatic Head and Neck Cancer

Athanassios Argiris, Michalis V. Karamouzis, William E. Gooding et al. · 2011 · Journal of Clinical Oncology

PURPOSE: We hypothesized that bevacizumab, a monoclonal antibody against vascular endothelial growth factor (VEGF), will potentiate the activity of pemetrexed, a multitargeted antifolate, in squamous cell carcinoma of the head and neck…

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Negative / Null Result ReportOpen accessMedicine

Hemoglobin A1c and Mortality in Older Adults With and Without Diabetes: Results From the National Health and Nutrition Examination Surveys (1988–2011)

Priya Palta, Elbert S. Huang, Rita R. Kalyani et al. · 2017 · Diabetes Care

OBJECTIVE Hemoglobin A1c (HbA1c) level has been associated with increased mortality in middle-aged populations. The optimal intensity of glucose control in older adults with diabetes remains uncertain. We sought to estimate the risk of…

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Negative / Null Result ReportOpen accessMedicine

Clinical, histologic and histomorphometric evaluation of socket preservation using a synthetic nanocrystalline hydroxyapatite in comparison with a bovine xenograft: a randomized clinical trial

Gholam Ali Gholami, Babak Najafi, Fatemeh Mashhadiabbas et al. · 2011 · Clinical Oral Implants Research

OBJECTIVES: The aim of this study was to compare a nanocrystalline hydroxyapatite (NCHA), NanoBone(®) and a deproteinized bovine bone mineral (DBBM), Bio-Oss(®) with a collagen membrane on the horizontal ridge width alterations following…

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Negative / Null Result ReportOpen accessMedicine

Early surgical intervention and its impact on patients presenting with necrotizing soft tissue infections: A single academic center experience

Rifat Latifi, GeorgeJ Hadeed, Judith Smith et al. · 2016 · Journal of Emergencies Trauma and Shock

OBJECTIVES: Early diagnosis and emergent surgical debridement of necrotizing soft tissue infections (NSTIs) remains the cornerstone of care. We aimed to study the effect of early surgery on patients' outcomes and, in particular, on…

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Negative / Null Result ReportOpen accessMedicine

Association of Trauma and Posttraumatic Stress Disorder With Incident Systemic Lupus Erythematosus in a Longitudinal Cohort of Women

Andrea L. Roberts, Susan Malspeis, Laura D. Kubzansky et al. · 2017 · Arthritis & Rheumatology

OBJECTIVE: To conduct the first longitudinal study examining whether trauma exposure and posttraumatic stress disorder (PTSD) are associated with increased risk of incident systemic lupus erythematosus (SLE) in a civilian cohort. METHODS:…

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Negative / Null Result ReportOpen accessMedicine

Chemotherapy for adult low-grade gliomas: clinical outcomes by molecular subtype in a phase II study of adjuvant temozolomide

Michael Wahl, Joanna J. Phillips, Annette M. Molinaro et al. · 2016 · Neuro-Oncology

Background: Optimal adjuvant management of adult low-grade gliomas is controversial. Recently described tumor classification based on molecular subtype has the potential to individualize adjuvant therapy but has not yet been evaluated as…

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Negative / Null Result ReportOpen accessMedicine

Clinical outcome of children and adults with localized Ewing sarcoma

Abha A. Gupta, Alberto S. Pappo, Natasha Saunders et al. · 2010 · Cancer

BACKGROUND: As Ewing sarcoma (EWS) can affect children and adults, these patients can be treated at either a pediatric or an adult institution. This study investigated whether differences in therapeutic strategy undertaken in pediatric and…

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Negative / Null Result ReportOpen accessMedicine

Gastrointestinal Bleeding in Patients With Coronavirus Disease 2019: A Matched Case-Control Study

Tracey A. Martin, David Wan, Kaveh Hajifathalian et al. · 2020 · The American Journal of Gastroenterology

INTRODUCTION: Although current literature has addressed gastrointestinal presentations including nausea, vomiting, diarrhea, abnormal liver chemistries, and hyperlipasemia as possible coronavirus disease 2019 (COVID-19) manifestations, the…

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Negative / Null Result ReportOpen accessMedicine

Predictors of outcome in paediatric IgA nephropathy with regard to clinical and histopathological variables (Oxford classification)

Stella Edström Halling, Magnus Söderberg, U. Berg · 2011 · Nephrology Dialysis Transplantation

BACKGROUND: There has been a lack of international consensus on the classification and the predictive value of the histopathology findings in IgA nephropathy (IgAN). Recently, the International IgA Nephropathy Network has developed the…

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Negative / Null Result ReportOpen accessMedicine

Efficacy of the Enquiring About Tolerance (EAT) study among infants at high risk of developing food allergy

Michael R. Perkin, Kirsty Logan, Henry T. Bahnson et al. · 2019 · Journal of Allergy and Clinical Immunology

BACKGROUND: The Enquiring About Tolerance (EAT) study was a randomized trial of the early introduction of allergenic solids into the infant diet from 3 months of age. The intervention effect did not reach statistical significance in the intention-to-treat analysis of the primary outcome. OBJECTIVE: We sought to determine whether infants at high risk of developing a food allergy benefited from early introduction. METHODS: A secondary intention-to-treat analysis was performed of 3 groups: nonwhite infants; infants with visible eczema at enrollment, with severity determined by SCORAD; and infants

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Negative / Null Result ReportOpen accessMedicine

A randomized placebo‐controlled phase 3 study of mesenchymal stem cells induced to secrete high levels of neurotrophic factors in amyotrophic lateral sclerosis

Merit Cudkowicz, Stacy Lindborg, Namita Goyal et al. · 2021 · Muscle & Nerve

INTRODUCTION/AIMS: Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative illness with great unmet patient need. We aimed to evaluate whether mesenchymal stem cells induced to secrete high levels of neurotrophic factors…

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Negative / Null Result ReportOpen accessMedicine

Intravenous administration of ulinastatin (human urinary trypsin inhibitor) in severe sepsis: a multicenter randomized controlled study

Dilip R. Karnad, Rakesh Bhadade, Pradeep Kumar Verma et al. · 2014 · Intensive Care Medicine

PURPOSE: Ulinastatin, a serine protease inhibitor, inhibits several pro-inflammatory proteases and decreases inflammatory cytokine levels and mortality in experimental sepsis. We studied the effect of ulinastatin on 28-day all-cause…

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Negative / Null Result ReportOpen accessMedicine

Acute Kidney Injury in COVID-19 Patients: An Inner City Hospital Experience and Policy Implications

Umar Zahid, Preethi Ramachandran, Samuel Spitalewitz et al. · 2020 · American Journal of Nephrology

BACKGROUND: Although diffuse alveolar damage and respiratory failure are the key features of coronavirus disease 2019 (COVID-19), the involvement of other organs such as the kidney has also been reported. The reports of the incidence of…

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Negative / Null Result ReportOpen accessMedicine

Efficacy of systemic adjuvant therapies administered to dogs after excision of oral malignant melanomas: 151 cases (2001–2012)

Sarah E. Boston, Xiaomin Lu, William T. N. Culp et al. · 2014 · Journal of the American Veterinary Medical Association

OBJECTIVE: To determine prognostic factors for and compare outcome among dogs with oral malignant melanoma following excision with or without various systemic adjuvant therapies. DESIGN: Retrospective case series. ANIMALS: 151 dogs with…

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