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19,814 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.

Negative / Null Result Report

Risk of Climate Change for Hydroelectricity Production in China Is Small but Significant Reductions Cannot Be Precluded for More Than a Third of the Installed Capacity

Wenhua Wan, Petra Döll, Hang Zheng · 2022 · Water Resources Research

Abstract To support the implementation of China's carbon neutrality target, this study assesses the impact of future climate change on hydroelectricity production (HP) in China. We developed a hydropower database for mainland China, which…

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Negative / Null Result Report

Does Internal Mammary Node Irradiation for Breast Cancer Make a Significant Difference to the Diameter of the Internal Mammary Artery? Correlation with Computed Tomography

Gamze Durhan, Ahmet Gürkan Erdemir, Sezin Yuce Sari et al. · 2020 · Breast Care

Objective: Lymphatic irradiation in breast cancer improves locoregional control and has been shown to decrease distant metastasis. However, irradiation also accelerates the formation of atherosclerosis and can cause stenosis,…

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Negative / Null Result ReportSocial Sciences

Effects of Information Veracity and Message Frames on Information Dissemination: A Case Study of 2016 Zika Epidemic Discussion on Twitter

Qian Xu, Shi Chen, Lida Safarnejad · 2020 · Health Communication

By taking the 2016 Zika outbreak as a case study, this research examines how information veracity (true information vs. misinformation) interacted with message frames to influence the dissemination of information about Zika through retweet…

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Negative / Null Result ReportOpen accessEngineering

The relevance of preferential flow in catchment scale simulations: Calibrating a 3D dual‐permeability model using DREAM

Luisa Hopp, Barbara Glaser, Julian Klaus et al. · 2019 · Hydrological Processes

Abstract The occurrence of preferential flow in the subsurface has often been shown in field experiments. However, preferential flow is rarely included in models simulating the hydrological response at the catchment scale. If it is…

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Negative / Null Result ReportOpen accessMedicine

“Fast track” rehabilitation after gastric cancer resection: experience with 80 consecutive cases

Jingxiang Song, Xiaohuang Tu, Bing Wang et al. · 2014 · BMC Gastroenterology

BACKGROUND: To evaluate the safety, efficacy and outcomes of fast-track rehabilitation applied to gastric cancer proximal, distal and total gastrectomy. METHODS: Eighty consecutive patients undergoing gastric cancer resection performed by a single surgeon, received perioperative multimodal rehabilitation. Demographic and operative data, gastrointestinal function, postoperative hospital stays, surgical and general complications and mortality were assessed prospectively. RESULTS: Of the 80 patients (mean age 56.3 years), 10 (12.5%) received proximal subtotal gastrectomy (Billroth I), 38 (47.5%)

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Negative / Null Result ReportOpen accessMedicine

Physicians’ knowledge, attitude, and prescribing behavior regarding stress ulcer prophylaxis in China: a multi-center study

Xiao Xuan Xing, Chen Zhu, Yan Chu et al. · 2021 · BMC Gastroenterology

BACKGROUND: Perioperative patients are at risk of developing stress ulcers (SU), which can cause clinically important bleeding. Stress ulcer prophylaxis (SUP) is widely applied to the patients in Intensive care unit (ICU) as well as the general ward, so it may lead to overmedication. However, there have been no surveys regarding SUP knowledge or prescribing habits. OBJECTIVE: Our study assessed the knowledge, attitudes, and prescribing behavior of the surgeons toward perioperative patients regarding SUP and determined factors associated with low knowledge and high level of prescribing behavior

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Negative / Null Result ReportOpen accessImmunology and Microbiology

Effects of endotoxin adsorber hemoperfusion on sublingual microcirculation in patients with septic shock: a randomized controlled trial

Shih-Hong Chen, Wing-Sum Chan, Chih‐Min Liu et al. · 2020 · Annals of Intensive Care

Abstract Background Endotoxins can induce an excessive inflammatory response and result in microcirculatory dysfunction. Polymyxin-B hemoperfusion (PMX-HP) has been recognized to effectively remove endotoxins in patients with sepsis and…

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Negative / Null Result ReportOpen accessEngineering

Nomogram for Predicting In-Hospital Mortality in Patients with Acute ST-Elevation Myocardial Infarction Complicated by Cardiogenic Shock after Primary Percutaneous Coronary Intervention

Yudan Wang, Litian Liu, Xinning Li et al. · 2022 · Journal of Interventional Cardiology

Background: Mortality after percutaneous coronary intervention (PCI) in ST-elevation myocardial infarction (STEMI) patients with cardiogenic shock (CS) remains high. However, the real-world risk factors for mortality in these patients are poorly defined. Objective: The aim of this study is to establish a clinical prognostic nomogram for predicting in-hospital mortality after primary PCI in STEMI patients with CS. Methods: This retrospective, multicenter, observational study included STEMI patients with CS who underwent PCI at 39 hospitals in Hebei Province from January 2018 to December 2019. A

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Negative / Null Result ReportMedicine

First-line immune checkpoint inhibitors alone or in combination with chemotherapy in real-life elderly patients with advanced non-small cell lung cancer (NEJ057).

Mao Uematsu, Yoko Tsukita, Takehiro Tozuka et al. · 2023 · Journal of Clinical Oncology

9012 Background: Immune checkpoint inhibitor (ICI) plus chemotherapy is now a standard treatment for non-small cell lung cancer (NSCLC) without targetable oncogene alternations. However, the efficacy and safety of ICI plus chemotherapy…

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Negative / Null Result ReportBiochemistry, Genetics and Molecular Biology

Modulation of autophagy: A phase II study of vorinostat (VOR) plus hydroxychloroquine (HCQ) vs regorafenib (RGF) in chemo-refractory metastatic colorectal cancer (mCRC).

Sukeshi Patel Arora, Laura Tenner, John Sarantopoulos et al. · 2019 · Journal of Clinical Oncology

3551 Background: Agents targeting the angiogenic pathway have been a cornerstone therapy in mCRC. In chemo-refractory mCRC, RGF, an oral multikinase inhibitor with considerable angiogenic inhibition, has shown modest effects on survival.…

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Negative / Null Result ReportOpen accessMedicine

Effectiveness of early awake self proning strategy in non-intubated patients with COVID-19 hypoxemia: An open-labelled randomized clinical trial from Jodhpur, India

Maya Gopalakrishnan, Satyendra Khichar, Suman Saurabh et al. · 2022 · Monaldi Archives for Chest Disease

Awake self-proning is being used widely as respiratory support in COVID-19 hypoxemia, in resource-limited settings. We aimed to investigate the effectiveness of early awake self-proning in preventing mortality and the need for intubation…

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Negative / Null Result ReportMedicine

Effect of Warfarin on Survival in Patients with Concomitant Left Ventricular Systolic Dysfunction and Pulmonary Hypertension: A Population Cohort Study

Andrew Goudie, Douglas H.J. Elder, Harshal Deshmukh et al. · 2014 · European Journal of Heart Failure

BACKGROUND: The use of oral anticoagulation in patients with heart failure in sinus rhythm remains controversial as previous large randomized controlled trials (RCTs) have not shown a survival benefit. However, heterogeneity exists among…

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Negative / Null Result ReportMedicine

Real-world data on melanoma brain metastases and survival outcome

Sidsel Pedersen, Søren Møller, Marco Donia et al. · 2022 · Melanoma Research

Novel medical therapies have revolutionized outcome for patients with melanoma. However, patients with melanoma brain metastases (MBM) still have poor survival. Data are limited as these patients are generally excluded from clinical…

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Negative / Null Result ReportOpen accessMedicine

Addition of chemotherapy to intensity-modulated radiotherapy does not improve survival in stage II nasopharyngeal carcinoma patients

Fangzheng Wang, Jiang Chuner, Quanquan Sun et al. · 2018 · Journal of Cancer

In this study, we examined whether combining neoadjuvant chemotherapy (NAC) and/or concurrent chemotherapy (CC) with intensity-modulated radiotherapy (IMRT) improved survival in patients with stage II nasopharyngeal carcinoma (NPC). Two hundred forty-two stage II NPC patients were enrolled between May 2008 and April 2014 and received radical IMRT with simultaneous integrated boost technique using 6 MV photons; some patient groups also received chemotherapy every 3 weeks for 2-3 cycles. The median follow-up duration was 69 months for all patients. At the last follow-up, 18 patients had experien

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Negative / Null Result ReportMedicine

Impact of prenatal diagnosis on the outcome of patients with a transposition of great arteries: A 24‐year population‐based study

Anne Debost‐Legrand, Lemlih Ouchchane, Christine Francannet et al. · 2015 · Birth Defects Research Part A Clinical and Molecular Teratology

BACKGROUND: Transposition of great arteries (TGA) defined as the combination of concordant atrioventricular and discordant ventriculo-arterial connections is one of the most common congenital heart defects. Prenatal diagnosis of TGA…

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Negative / Null Result ReportOpen accessAgricultural and Biological Sciences

The copepod Acartia tonsa as live feed for fat snook (Centropomus parallelus) larvae from notochord flexion to advanced metamorphosis

Márcia Vanacor Barroso, Cristina Vaz Avelar de Carvalho, Rosemar Antoniassi et al. · 2017 · Latin American Journal of Aquatic Research

From early development until the completion of metamorphosis, fat snook (Centropomus parallelus) larvae are commonly fed the rotifers Brachionus spp. and Artemia spp. nauplii. In this study, cultivated copepods Acartia tonsa were evaluated…

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Negative / Null Result ReportNeuroscience

Combined lipid emulsion and ACLS resuscitation following bupivacaine- and hypoxia-induced cardiovascular collapse in unanesthetized swine.

Brent A Bushey, Victor H Auld, John E Volk et al. · 2011 · PubMed

This study examined whether combining lipid emulsion and advanced cardiac life support (ACLS) improves survival in an unanesthetized swine model of bupivacaine- and hypoxia-induced cardiovascular collapse. Arterial and venous catheters and…

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Negative / Null Result ReportMedicine

Successful Multimodal Treatment for Aggressive Metastatic and Recurrent Fibrolamellar Hepatocellular Carcinoma in a Child

Arzu Okur, Eylem Pınar Eser, Güldal Yılmaz et al. · 2014 · Journal of Pediatric Hematology/Oncology

Fibrolamellar variant of hepatocellular carcinoma (FLHCC) does not have a favorable prognosis than conventional HCC, and there is no difference regarding the response to chemotherapy and the degree of surgical resectability. FLHCC commonly…

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Negative / Null Result ReportOpen accessMedicine

A phase II study of ENMD-2076 in advanced soft tissue sarcoma (STS)

Zachary Veitch, Alona Zer, Herbert H. Loong et al. · 2019 · Scientific Reports

ENMD-2076, an aurora-A kinase inhibitor with anti-angiogenic properties, has shown activity in solid and hematologic malignancies. We investigated oral ENMD-2076 in an open-label, single-arm phase II study using 275 mg daily on a 28-day cycle in patients with advanced soft-tissue sarcomas (STS) receiving ≤1 line of prior therapy. Primary endpoint was 6-month progression-free survival (PFS) with ≤15% indicating no interest, and ≥40% indicating further interest in ENMD-2076. Secondary/exploratory endpoints included clinical benefit (CBR ≥6-months) and objective response (ORR) rates, PFS, OS, saf

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Negative / Null Result ReportOpen accessMedicine

Balancing Potential Benefits and Risks of Bruton Tyrosine Kinase Inhibitor Therapies in Multiple Sclerosis During the COVID-19 Pandemic

Martin S. Weber, Jacqueline Nicholas, Michael R. Yeaman · 2021 · Neurology Neuroimmunology & Neuroinflammation

Bruton tyrosine kinase inhibitors (BTKis) encompass a new class of therapeutics currently being evaluated for the treatment of multiple sclerosis (MS). Whether BTKis affect COVID-19 risk or severity or reduce vaccine efficacy are important…

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Negative / Null Result ReportOpen accessMedicine

Effects of Acyclovir and IVIG on Behavioral Outcomes after HSV1 CNS Infection

Chandran Ramakrishna, Mari S. Golub, Abby J. Chiang et al. · 2017 · Behavioural Neurology

Herpes simplex virus 1 (HSV) encephalitis (HSE) has serious neurological complications, involving behavioral and cognitive impairments that cause significant morbidity and a reduced quality of life. We showed that HSE results from dysregulated central nervous system (CNS) inflammatory responses. We hypothesized that CNS inflammation is casually involved in behavioral abnormalities after HSE and that treatment with ACV and pooled human immunoglobulin (IVIG), an immunomodulatory drug, would improve outcomes compared to mice treated with phosphate buffered saline (PBS) or ACV alone. Anxiety level

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Negative / Null Result ReportOpen accessMedicine

Thought-provoking Molecules for Drug Discovery: antioxidants

İpek Komşuoğlu Çelikyurt · 2011 · Pharmaceutica Analytica Acta

Affirmative influence of antioxidant vitamins may be observed in atherosclerosis and endothelial dysfunction, male infertility, Parkinson's disease (especially via lipoic acid), diabetes, brain tumors and skin maturation There is not yet…

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