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Failure-mode index

Search what already failed

A searchable index of real negative results, null findings, and replication failures from the published literature — so you can learn what didn't work before repeating it.

WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record (title, authors, DOI) compiled from open scholarly databases, with the abstract shown in full only where the paper is openly licensed (e.g. Creative Commons); otherwise a short excerpt is shown for reference under fair use. WASTE classifies each work by failure type; classifications are automated and approximate.

1761 results in Negative / Null Result Report for "Mpro" · page 40 of 59

Negative / Null Result ReportMedicine

The financial burden resulting from complementary and alternative medicine in oncology care.

Bagdonas, Schäfer, Wolf et al. · 2026 · BMC complementary medicine and therapies

Complementary and alternative medicine (CAM) is widely used by oncology patients to manage symptoms, reduce stress, and improve quality of life. Unlike conventional treatments, CAM is rarely reimbursed in Germany, resulting in significant…

View details →DOI: 10.1186/s12906-026-05417-z
Negative / Null Result ReportMedicine

VR preoperative education with sensory information alleviates perioperative anxiety and enhances delivery experience in primiparas undergoing cesarean section: a randomized controlled trial.

Ran, Wei, Huang et al. · 2025 · Frontiers in psychology

To investigate the effectiveness of a VR preoperative education program with sensory information support in reducing perioperative anxiety and improving the delivery experience among primiparas undergoing cesarean section (CS). A total of…

View details →DOI: 10.3389/fpsyg.2025.1648706
Negative / Null Result ReportMedicine

Early orthodontic traction does not compromise root development in inversely impacted maxillary central incisors: a three-year cone-beam computed tomography evaluation.

Yang, Dong, Cheng et al. · 2026 · Clinical oral investigations

To evaluate whether early orthodontic traction of inversely impacted maxillary central incisors with curved roots affects subsequent root development and labial/palatal alveolar bone support. A retrospective cone-beam computed tomography…

View details →DOI: 10.1007/s00784-026-06962-0
Negative / Null Result ReportMedicine

Effect of okara and biovalorised okara consumption on postprandial amino acid response: a crossover randomised controlled trial.

Lee, Mak, Leong et al. · 2026 · European journal of clinical nutrition

Okara is a protein-rich food by-product that can be biovalorised with Rhizopus oligosporus to improve its protein digestibility and quality. This study investigated postprandial circulating amino acid changes following okara and…

View details →DOI: 10.1038/s41430-026-01769-4
Negative / Null Result ReportMedicine

Robotic segmental ureterectomy for upper tract urothelial carcinoma: comparable short-term oncological outcomes and improved postoperative recovery compared to open approach.

Lasmanovich, Chepeliuk, Fihman et al. · 2026 · World journal of surgical oncology

Segmental ureterectomy (SU) is an established kidney-sparing strategy for upper tract urothelial carcinoma (UTUC), yet few studies have compared the standard open approach to the emerging robotic modality. We performed a clinical outcome…

View details →DOI: 10.1186/s12957-026-04422-3
Negative / Null Result ReportMedicine

Impact of the MonCœur smartphone application on self-care and quality of life in heart failure: The APPLIMONCOEUR randomized trial.

Berthelot, Audureau, Bouleti et al. · 2026 · Archives of cardiovascular diseases

The MonCœur smartphone application (app) was developed to meet the specific needs of individuals living with heart failure (HF). To evaluate whether the MonCœur smartphone app improves self-care at 6months in patients with HF,…

View details →DOI: 10.1016/j.acvd.2026.04.007
Negative / Null Result ReportMedicine

Computer navigation in total shoulder arthroplasty : analysis from the Australian Orthopaedic Association National Joint Replacement Registry.

Wilcox, Campbell, Gill et al. · 2026 · The bone & joint journal

Computer navigation is capable of improving the accuracy of glenoid baseplate and screw positioning in shoulder arthroplasty, but there is very limited evidence of its effect on clinical outcomes. In Australia, there is one commonly used…

View details →DOI: 10.1302/0301-620x.108b6.bjj-2025-1772.r1
Negative / Null Result ReportMedicine

Equity of Access and Outcomes: A Comparison Between In-Area and Out-of-Area Patients Undergoing Ventricular Arrhythmia Ablation.

Sood, Turnbull, De Silva et al. · 2026 · Heart, lung & circulation

Improved patient outcomes after ventricular arrhythmia (VA) ablation procedure have been found to correlate with procedures being performed in high volume centres. Whether the concentration of expertise in experienced, urban centres…

View details →DOI: 10.1016/j.hlc.2025.12.026
Negative / Null Result ReportMedicine

Low muscle mass predicts poor response to neoadjuvant chemotherapy in advanced ovarian cancer.

Esmer, Hafızoğlu, Bardakçı et al. · 2026 · Journal of ovarian research

Advanced epithelial ovarian cancer (EOC) is commonly diagnosed at late stages, and despite improvements with neoadjuvant chemotherapy (NACT) followed by interval debulking surgery (IDS), prognosis remains poor. Body composition has emerged…

View details →DOI: 10.1186/s13048-025-01960-4
Negative / Null Result ReportMedicine

1,8-Cineole Alleviates PA-Induced Lipid Accumulation, Oxidative Stress, and Inflammation via the TLR4/MyD88/NF-κB Signaling Pathway.

Li, Zhan, Zhang et al. · 2026 · Molecules (Basel, Switzerland)

The present study investigates the effect of 1,8-cineole on improving lipid metabolism disorder by regulating oxidative stress and inflammation via the TLR4/MyD88/NF-κB pathway. 1,8-Cineole is a monoterpene compound widely found in…

View details →DOI: 10.3390/molecules31111933
Negative / Null Result ReportMedicine

Clinical Strategies to Improve the Accuracy of Articulating Paper for Detecting Occlusal Contact Points in Adults with Natural Dentitions.

Rovira-Lastra, ElOtmani-Sabiri, Ustrell-Barral et al. · 2026 · Diagnostics (Basel, Switzerland)

Background/Objectives : This clinical study assessed the validity of articulating paper for detecting occlusal contacts points, including examining the effects of clinical technique, paper thickness, and the arch. Methods : This…

View details →DOI: 10.3390/diagnostics16101450
Negative / Null Result ReportMedicine

Preservation of preoperative CPAK is not associated with improved clinical outcomes one-year after functionally aligned robot-assisted TKA.

Pujol, Minguell, Pijoan et al. · 2025 · Journal of orthopaedics

To determine if maintaining the preoperative CPAK class influences on clinical outcomes when performing a functional aligned robotic assisted TKA (RATKA). This prospective cohort study compared patients who maintained their preoperative…

View details →DOI: 10.1016/j.jor.2025.06.030
Negative / Null Result ReportOpen accessNeoplasms. Tumors. Oncology. Including cancer and carcinogens

Evaluation of the effectiveness of surgical resection and ablation for the treatment of early‐stage hepatocellular carcinoma: A retrospective cohort study

Bilan Yang, Xiaoli Xi, Hongsheng Yu et al. · 2024 · Cancer Reports

Abstract Background The optimal treatment strategy for early‐stage hepatocellular carcinoma (HCC) remains controversial, specifically in regard to surgical resection (SR) and ablation. The aim of this study was to investigate the impact of SR and ablation on recurrence and prognosis in early‐stage HCC patients, to optimize treatment strategies and improve long‐term survival. Methods A retrospective analysis was conducted on 801 patients diagnosed with Barcelona Clinic Liver Cancer (BCLC) stage 0/A HCC and treated with SR or ablation between January 2015 and December 2019. The effectiveness and

View details →DOI: 10.1002/cnr2.2030
Negative / Null Result ReportOpen accessNeurosciences. Biological psychiatry. Neuropsychiatry

Improving Deep Brain Stimulation Electrode Performance in vivo Through Use of Conductive Hydrogel Coatings

Tomoko Hyakumura, Tomoko Hyakumura, Ulises Aregueta-Robles et al. · 2021 · Frontiers in Neuroscience

Active implantable neurological devices like deep brain stimulators have been used over the past few decades to treat movement disorders such as those in people with Parkinson’s disease and more recently, in psychiatric conditions like obsessive compulsive disorder. Electrode-tissue interfaces that support safe and effective targeting of specific brain regions are critical to success of these devices. Development of directional electrodes that activate smaller volumes of brain tissue requires electrodes to operate safely with higher charge densities. Coatings such as conductive hydrogels (CHs)

View details →DOI: 10.3389/fnins.2021.761525
Negative / Null Result ReportOpen accessSports medicine

Hang cleans and hang snatches produce similar improvements in female collegiate athletes

JL Ayers, M DeBeliso, TG Sevene et al. · 2016 · Biology of Sport

Olympic weightlifting movements and their variations are believed to be among the most effective ways to improve power, strength, and speed in athletes. This study investigated the effects of two Olympic weightlifting variations (hang cleans and hang snatches), on power (vertical jump height), strength (1RM back squat), and speed (40-yard sprint) in female collegiate athletes. 23 NCAA Division I female athletes were randomly assigned to either a hang clean group or hang snatch group. Athletes participated in two workout sessions a week for six weeks, performing either hang cleans or hang snatc

View details →DOI: 10.5604/20831862.1201814
Negative / Null Result ReportOpen accessPsychology

Comparison of the effectiveness of exposure, mindfulness and mindfulness - integrated exposure on arak women obsessive - compulsive disorder

sara hasani, abolghasem mehrinezhad, Roshanak khodabakhsh pirkalani · 2020 · مجله علوم روانشناختی

Background: Obsessive-compulsive disorder is one of the most common and disabling psychological disorders. Many studies have investigated the effectiveness of mindfulness and exposure on the improvement of obsessive-compulsive disorder, but the key question is which of the two combinations of exposure, mindfulness, and mindfulness of exposure is most effective on obsessive-compulsive disorder in women? Aims: To compare the effects of exposure, mindfulness and mindfulness-exposure consciousness on combined obsessive-compulsive disorder in Arak women. Method: This was a quasi-experimental study

Negative / Null Result ReportOpen accessDiseases of the genitourinary system. Urology

Effect of an Oral Adsorbent, AST-120, on Dialysis Initiation and Survival in Patients with Chronic Kidney Disease

Shingo Hatakeyama, Hayato Yamamoto, Akiko Okamoto et al. · 2012 · International Journal of Nephrology

The oral adsorbent AST-120 has the potential to delay dialysis initiation and improve survival of patients on dialysis. We evaluated the effect of AST-120 on dialysis initiation and its potential to improve survival in patients with chronic kidney disease. The present retrospective pair-matched study included 560 patients, grouped according to whether or not they received AST-120 before dialysis (AST-120 and non-AST-120 groups). The cumulative dialysis initiation free rate and survival rate were compared by the Kaplan-Meier method. Multivariate analysis was used to determine the impact of AST-

View details →DOI: 10.1155/2012/376128
Negative / Null Result ReportOpen accessMedicine

Aqueous and methanol extracts of Paullinia pinnata improve MSUc uptake in macrophages and in vitro antioxidant effects

Pius Pum Tseuguem, Télesphore Benoît Nguelefack, Elvine Pami Nguelefack-Mbuyo et al. · 2026 · Scientific Reports

Abstract Extracts of Paullinia pinnata have demonstrated therapeutic effects in monosodium urate (MSU)-induced gout in rats, notably by reducing inflammation and hyperalgesia, as well as enhancing antioxidant activity in vivo. However, their in vitro antioxidant potential and their effects on MSU-stimulated macrophages remain insufficiently explored. This study aims to investigate the in vitro antioxidant properties of P. pinnata, with a particular focus on MSU uptake in stimulated macrophages. The in vitro antioxidant activities of aqueous (AEPP) and methanolic (MEPP) extracts of P. pinnata l

View details →DOI: 10.1038/s41598-026-48124-y
Negative / Null Result ReportOpen accessNeurosciences. Biological psychiatry. Neuropsychiatry

A Mechanical Stimulation Glove to Induce Hebbian Plasticity at the Fingertip

Fabian Timm, Esther Kuehn, Esther Kuehn et al. · 2020 · Frontiers in Human Neuroscience

Repetitive sensory stimulation of the fingertip induces Hebbian plasticity in the sensorimotor cortex that benefits the tactile and motor behavior of the hand in healthy younger adults, older adults, and patients. To use this method outside the laboratory, robust and portable stimulation systems are needed that allow prolonged stimulation phases over several hours without compromising on signal intensity or personal mobility. Here, we introduce two stimulation gloves that apply finger- and frequency-specific mechanical stimulation to individual fingertips over prolonged periods. The stimulator

View details →DOI: 10.3389/fnhum.2020.00177
Negative / Null Result ReportOpen accessPsychology

Audio-Visual Spatiotemporal Perceptual Training Enhances the P300 Component in Healthy Older Adults

Weiping Yang, Weiping Yang, Ao Guo et al. · 2018 · Frontiers in Psychology

In older adults, cognitive abilities, such as those associated with vision and hearing, generally decrease with age. According to several studies, audio-visual perceptual training can improve perceived competence regarding visual and auditory stimuli, suggesting that perceptual training is effective and beneficial. However, whether audio-visual perceptual training can induce far-transfer effects in other forms of untrained cognitive processing that are not directly trained in older adults remains unclear. In this study, the classic P300 component, a neurophysiological indicator of cognitive pr

View details →DOI: 10.3389/fpsyg.2018.02537
Negative / Null Result Report

Effect of Dual Task Training and Virtual Reality on Cognitive Motor Interference in Patients with Parkinson’s Disease: A Randomised Clinical Pilot Study

S. Saini, Sarita Pandey, Kanika · 2026 · Journal of Clinical and Diagnostic Research

Introduction: Rehabilitation plays a vital role in managing Parkinson’s Disease (PD), particularly in addressing both motor and cognitive impairments. Dual Task Training (DTT) improves motor symptoms and cognitive performance, while…

View details →DOI: 10.7860/jcdr/2026/89283.23743
Negative / Null Result ReportOpen accessOrthopedic surgery

Does preoperative mental health affect length of hospital stay and functional outcomes following arthroplasty surgery? A registry-based cohort study

Neal Singleton, Vaughan Poutawera · 2017 · Journal of Orthopaedic Surgery

Aim: It has been reported in the literature that patients with poor preoperative mental health are more likely to have worse functional outcomes following primary total hip and knee arthroplasty. We could find no studies investigating whether preoperative mental health also affects length of hospital stay following surgery. The aim of this study was to determine whether preoperative mental health affects length of hospital stay and long-term functional outcomes following primary total hip and knee arthroplasty. We also aimed to determine whether mental health scores improve after arthroplasty

View details →DOI: 10.1177/2309499017718902
Negative / Null Result ReportOpen accessMedicine

Does the Use of Nitroglycerin Patch Improve Local Anaesthetic Effects in Bier's Block? A Double-Blind Placebo Controlled Study

A. Elgebaly · 2018 · Anesthesiology Research and Practice

Aim The aim of the study was to assess the nitroglycerin patch as a new additive to Bier's block and its impact on the effects and dose of lidocaine. Methods Forty patients of each sex belonging to ASA I or II underwent elective tendon…

View details →DOI: 10.1155/2018/9674731
Negative / Null Result ReportOpen accessMedicine

Creatine Enhances the Effects of Cluster-Set Resistance Training on Lower-Limb Body Composition and Strength in Resistance-Trained Men: A Pilot Study

D. Bonilla, R. Kreider, J. Petro et al. · 2021 · Nutrients

Creatine monohydrate (CrM) supplementation has been shown to improve body composition and muscle strength when combined with resistance training (RT); however, no study has evaluated the combination of this nutritional strategy with…

View details →DOI: 10.3390/nu13072303
Negative / Null Result ReportOpen accessMedicine

Ivermectin treatment of demodicosis in 56 hamsters.

K. Tani, T. Iwanaga, K. Sonoda et al. · 2001 · Journal of Veterinary Medical Science

Fifty-six hamsters with demodicosis were treated with daily oral administration of ivermectin (0.3 mg/kg). Thirty-three cases (58.9%) were cured and 6 cases (10.7%) had improved clinically but needed to continue treatment. Of 5 cases…

View details →DOI: 10.1292/jvms.63.1245
Negative / Null Result ReportOpen accessMedicine

Evaluation of Health Literacy and Associated Factors Among Adults Living in Saudi Arabia: A Cross-Sectional Study

Yaser M. Alahmadi · 2023 · Inquiry : a journal of medical care organization, provision and financing

In this westernized culture, maintaining a healthy lifestyle has become a major health concern internationally. Health literacy is an emerging concept and requires effective measures and reform to improve the health status and health of…

View details →DOI: 10.1177/00469580231161428