20,201 real negative results, null findings, and replication failures · 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.
Laiana Schneider, A C Colar da Silva, Luiz Carlos Werres et al. · 2015 · Lupus
OBJECTIVES: To evaluate the expression of Th1, Th2, and Th17 cytokines in patients with systemic lupus erythematosus (SLE), and verify the association between serum cytokine levels and vitamin D concentration. METHODS: The sample consisted…
View details →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…
View details →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…
View details →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
View details →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
View details →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.…
View details →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
View details →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.
View details →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…
View details →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
View details →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…
View details →Helmut Schoellnast, Ajita Deodhar, Meier Hsu et al. · 2012 · Acta Radiologica
BACKGROUND: Radiofrequency ablation (RFA) is a potential application as a salvage tool after failure of surgery, chemotherapy, or radiotherapy of non-small cell lung cancer (NSCLC). Although several studies have evaluated the use of RFA in…
View details →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
View details →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
View details →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…
View details →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
View details →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
View details →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
View details →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:…
View details →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
View details →Bradford L. McRae, Alon D. Levin, Manon E. Wildenberg et al. · 2015 · Journal of Crohn s and Colitis
BACKGROUND AND AIMS: Anti-tumour necrosis factor [TNF] monoclonal antibodies [infliximab, adalimumab] induce complete mucosal healing in a proportion of patients with Crohn's disease whereas a TNF receptor fusion protein [etanercept] is…
View details →Valérie Fonteyne, Piet Dirix, Charles Van Praet et al. · 2021 · European Urology Focus
BACKGROUND: High-risk muscle-invasive bladder cancer (MIBC) has a poor prognosis. Old trials showed that external beam radiotherapy (EBRT) after radical cystectomy (RC) decreases the incidence of local recurrences but induces severe…
View details →Jie Shen, Gary N. Landis, John Tower · 2016 · The Journals of Gerontology Series A
The Gompertz equation describes survival in terms of initial mortality rate (parameter a), indicative of health, and age-dependent acceleration in mortality rate (parameter b), indicative of aging. Gompertz parameters were analyzed for…
View details →Sindrila Dutta Banik, Nilashis Nandi · 2012 · Journal of Biomolecular Structure and Dynamics
In the present work we report, for the first time, a novel difference in the molecular mechanism of the activation step of aminoacylation reaction between the class I and class II aminoacyl tRNA synthetases (aaRSs). The observed difference is in the mode of nucleophilic attack by the oxygen atom of the carboxylic group of the substrate amino acid (AA) to the αP atom of adenosine triphosphate (ATP). The syn oxygen atom of the carboxylic group attacks the α-phosphorous atom (αP) of ATP in all class I aaRSs (except TrpRS) investigated, while the anti oxygen atom attacks in the case of class II aa
View details →Todd W. Rice, D. Clark Files, Peter E. Morris et al. · 2018 · Journal of Parenteral and Enteral Nutrition
BACKGROUND: Enteral nutrition (EN) increases hyperglycemia due to high carbohydrate concentrations while providing insufficient protein. The study tested whether an EN formula with very high-protein- and low-carbohydrate-facilitated…
View details →Lindsay Rosenbeck, Patrick J. Kiel, Iftekhar Kalsekar et al. · 2010 · Biology of Blood and Marrow Transplantation
Methotrexate (MTX) is a standard agent used in combination with calcineurin inhibitors for graft-versus-host disease (GVHD) prophylaxis in patients undergoing allogeneic hematopoietic cell (HCT) transplantation. We retrospectively compared…
View details →Ian Roberts · 2016 · Transfusion
Administration of tranexamic acid (TXA) to bleeding trauma patients who are within 3 hours of injury has been shown to safely reduce mortality in bleeding trauma patients. However, some believe that thromboelastography (TEG or ROTEM) can…
View details →Arjan Kol, Anton Terwisscha van Scheltinga, Martin Pool et al. · 2017 · Oncotarget
// Arjan Kol 1 , Anton Terwisscha van Scheltinga 2 , Martin Pool 1 , Christian Gerdes 3 , Elisabeth de Vries 1 , Steven de Jong 1 1 Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands 2 Department of Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands 3 Roche Pharma Research & Early Development, Roche Innovation Center Zürich, Schlieren, Switzerland Correspondence to: Steven de Jong, email: s.de.jong@umcg.nl Keywords: non-small cell lung cancer,
View details →Mauro Cignarelli, Ettore Cicinelli, Mónica Corso et al. · 2010 · Gynecologic and Obstetric Investigation
Thermocutaneous, vascular, metabolic and hormonal changes were investigated during 11 hot flashes from 6 postmenopausal women. The first detectable change was an increase in finger blood flow with a concomitant enhancement of skin…
View details →Daisuke Nakamura, Tomohiro Suzuki, Mikinobu Yasumatsu et al. · 2011 · The Journal of Strength and Conditioning Research
Several investigators have reported the effects of reduced training and interrupted training on athletic performance, but few reports are available for soccer players. The purpose of this study was to examine, using the Yo-Yo intermittent…
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