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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.

19859 results in Negative / Null Result Report · page 367 of 662

Negative / Null Result ReportOpen accessMedicine

The effects of unilateral nostril breathing on brain functional network activity: a pilot study.

White DE, Ghani U, Pedersen M et al. · 2025 · Journal of neuroengineering and rehabilitation

Background Unilateral nostril breathing (UNB) has a history linked to ancient yogic traditions where it is believed to affect both physical and mental states however the mechanism(s) by which this technique potentially influences brain…

View details →DOI: 10.1186/s12984-025-01782-x
Negative / Null Result ReportMedicine

Phase III maintenance telerehabilitation in elderly patients with chronic heart failure and type 2 diabetes (TELEMECHRON study).

Scalvini S, Donati V, Zanelli E et al. · 2026 · European journal of internal medicine

Background Heart failure (HF) and type 2 diabetes (T2DM) are significant public health concerns. This study evaluated a 6-month home-based telemedicine program for older patients with combined HF and T2DM. The primary outcome was exercise…

View details →DOI: 10.1016/j.ejim.2026.106981
Negative / Null Result ReportMedicine

Real-world impact of artificial intelligence on adenoma detection: A cross-sectional study at a single center in Lima, Peru.

Guillen B, Zambrano-Huailla R, Chirinos JA · 2026 · Revista de gastroenterologia de Mexico (English)

Introduction The use of artificial intelligence (AI) in endoscopic studies has grown in recent years. The present study evaluates the performance of AI in detecting polyps and adenomas in daily clinical practice. Materials and methods A…

View details →DOI: 10.1016/j.rgmxen.2025.09.028
Negative / Null Result Report

The Impact of Prolonged Dental Chair Utilization on Cervical Spine Mobility and Pain among Dental Internship Students: A Cross-Sectional Observational Study from the United Arab Emirates.

Elabed MH, Jarbou H, Alsalim N et al. · 2026 · Preprint

Background Dentistry is considered a high-risk profession for developing work-related musculoskeletal disorders (MSDs), particularly in the cervical region, due to prolonged static postures, repetitive movements, and sustained neck flexion…

View details →DOI: 10.12688/f1000research.182694.1
Negative / Null Result ReportMedicine

A Follow-Up Study of the Supraaortic and Intracranial Vessels, Cerebrovascular Reactivity, Brain Vascular Lesions and Atrophy in Patients with Rheumatoid Arthritis.

Sas A, Jónyer D, Valikovics A et al. · 2026 · Journal of clinical medicine

Background/Objectives: Rheumatoid arthritis (RA) has been associated with accelerated atherosclerosis and cerebrovascular alterations. Our 2017 study compared 60 RA patients to healthy controls, assessing vascular, neurological, and…

View details →DOI: 10.3390/jcm15124691
Negative / Null Result ReportMedicine

Long-term therapy with elexacaftor/tezacaftor/ivacaftor improves cystic fibrosis lung disease and monocyte function.

Sangiorgi G, Cavinato L, Cristoferi M et al. · 2026 · Respiratory medicine

Background Elexacaftor/tezacaftor/ivacaftor (ETI) therapy rapidly improves monocyte antimicrobial activity in people with cystic fibrosis (pwCF). Here, we investigated the effect of long-term ETI therapy on Pseudomonas aeruginosa…

View details →DOI: 10.1016/j.rmed.2026.108930
Negative / Null Result ReportMedicine

Thrombotic Outcomes Associated With Factor Eight Inhibitor Bypassing Activity Use in Neonatal and Infant Cardiac Surgery Including the Norwood Procedure: A Propensity Score‒Matched Analysis.

Houska N, McCaw N, Meneses EC et al. · 2026 · Journal of cardiothoracic and vascular anesthesia

Objectives To describe thrombotic outcomes associated with Factor Eight Inhibitor Bypassing Activity (FEIBA) exposure in neonates and infants undergoing cardiac surgery with cardiopulmonary bypass (CPB), including the Norwood procedure.…

View details →DOI: 10.1053/j.jvca.2026.05.071
Negative / Null Result ReportMedicine

Comparison of pain perception and heart rate between Dentapen and Vibraject during local anesthesia administration in adult patients: a randomized clinical study.

Almuashi H, AbuMostafa A · 2026 · Quintessence international (Berlin, Germany : 1985)

Objective The management of pain in dental procedures is crucial, as local anesthetic injections may induce patient anxiety and discomfort. Various techniques including Vibraject and Dentapen have been devised to alleviate injection…

View details →DOI: 10.3290/j.qi.b7010719
Negative / Null Result ReportMedicine

Trends and regional inequalities in cerebrovascular disease mortality in Peru: An ecological time-series analysis, 2017-2025.

Veli-Quispe D, Urquizo-Prado S, Cesare-Ariza E et al. · 2026 · Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association

Background Cerebrovascular disease remains a leading cause of mortality worldwide. In Peru, evidence on recent mortality trends and regional disparities is limited. Objective To evaluate temporal trends and regional disparities in…

View details →DOI: 10.1016/j.jstrokecerebrovasdis.2026.108675
Negative / Null Result ReportMedicine

Impact of Aflibercept Dosing Frequency on Retinal Nonperfusion Progression Assessed by Ultra-Widefield Angiography After Endolaserless Vitrectomy for Proliferative Diabetic Retinopathy-Related Vitreous Hemorrhage.

Qin LG, Camarda ND, Kasetty VM et al. · 2026 · Journal of vitreoretinal diseases

Purpose: To investigate the effect of intravitreal (IVT) aflibercept injection monotherapy on retinal ischemia in eyes with severe proliferative diabetic retinopathy (PDR) that underwent pars plana vitrectomy (PPV) without panretinal…

View details →DOI: 10.1177/24741264261445228
Negative / Null Result ReportOpen accessMedicine

Synovial Biomarker Modulation and Clinical Response to Umbilical Cord-Derived MSC Treatment in Knee Osteoarthritis: A Case Series Study.

Švajger U, Kolar M, Pompe B et al. · 2026 · Cartilage

ObjectiveUmbilical cord-derived mesenchymal stromal cells (UC-MSCs) are a promising treatment for knee osteoarthritis (KOA). This study aimed to (1) characterize early synovial fluid biomarker changes after intra-articular UC-MSCs therapy…

View details →DOI: 10.1177/19476035261435793
Negative / Null Result ReportMedicine

Effect of dietary carrageenan supplementation on growth performance, digestive enzyme and antioxidant enzyme activity, immune gene expression, and capacity against S. agalactiae of Nile tilapia (Oreochromis niloticus).

Ramachandran I, Rajesh AT, Elumalai P · 2026 · Fish physiology and biochemistry

The current study aimed to ascertain the growth, antioxidant capacity, intestinal architecture, digestive enzyme activity, and disease resistance of S. agalactiae of Nile tilapia (Oreochromis niloticus) fed a diet enriched with…

View details →DOI: 10.1007/s10695-026-01683-3
Negative / Null Result ReportOpen accessMedicine

The effect of colchicine on micronutrients in children with newly diagnosed familial Mediterranean fever.

Kaba Ö, Tanatar A, Koç R et al. · 2026 · Jornal de pediatria

Objectives Colchicine is an essential component of familial Mediterranean fever (FMF) treatment. It is suggested that it may affect vitamin B 12 levels by affecting intestinal absorption. This research focused on examining the impact of…

View details →DOI: 10.1016/j.jped.2026.101554
Negative / Null Result ReportMedicine

Risk of major bleeding events associated with concomitant use of selective serotonin reuptake inhibitors and anti-thrombotic drugs: a nationwide case-case-time-control study.

Kim S, Kim JH, Shin JY et al. · 2026 · Age and ageing

Background Depression is common in older adults, who are also at elevated risk of bleeding due to age-related physiological changes and comorbidities. Concerns have been raised regarding potential bleeding risk from concomitant use of…

View details →DOI: 10.1093/ageing/afag105
Negative / Null Result ReportOpen accessMedicine

Postoperative radiotherapy improves overall survival and was not associated with a statistically significant increase in cardiac-specific mortality in thymoma patients: a propensity score-matched analysis of the SEER database.

Wang R, Dai P, Deng X et al. · 2026 · Journal of thoracic disease

Background Thymoma is an uncommon cancer of the thymus and postoperative radiotherapy (PORT) is often considered for selected patients with high-risk or locally advanced thymoma after resection. The effect of PORT on overall survival (OS)…

View details →DOI: 10.21037/jtd-2026-1-0184
Negative / Null Result Report

Exploring the Impact of ResearchEazy, an Online Research Series for Medical Students: The Longitudinal Impact of Perspectives and Knowledge of Research

Au YE, Baskaran R, Li JY et al. · 2026 · Preprint

Abstract Background The ability to appraise and apply research is fundamental to the practice of evidence-based medicine (EBM). Despite the General Medical Council’s (GMC) mandate for United Kingdom (UK) medical graduates to integrate…

View details →DOI: 10.21203/rs.3.rs-8150678/v1
Negative / Null Result ReportOpen accessMedicine

Evaluation of Differences in Imaging Findings on Stress-MRI in Throwing Athletes With and Without a History of Ulnar Collateral Ligament Reconstruction.

Patel M, Schwartz K, Schenk M et al. · 2026 · Orthopaedic journal of sports medicine

Background Ulnar collateral ligament (UCL) reconstruction (UCLR) of the elbow is common in throwing athletes and reliably allows return to play. The literature supports stress imaging of the elbow to evaluate the integrity of the UCL. The…

View details →DOI: 10.1177/23259671261453313
Negative / Null Result ReportOpen accessMedicine

Impact of a Routine Third Trimester Ultrasound Policy on Obstetric, Neonatal and Service Delivery Outcomes in an Australian Tertiary Centre.

Kumar P, Gordon A, Fisher E et al. · 2026 · The Australian & New Zealand journal of obstetrics & gynaecology

Background Routine third trimester ultrasound scans have been introduced in several maternity centres to increase detection of fetal growth disorders and improve perinatal outcomes. Aims To assess changes in obstetric and neonatal outcomes…

View details →DOI: 10.1111/ajo.70139
Negative / Null Result ReportOpen accessMedicine

Photobiomodulation at 830 nm with 5 J/cm<sup>2</sup> does not promote PI3K/AKT/mTOR signalling pathway activation in hyperglycemic wounded cells.

Kasowanjete P, Dhilip Kumar SS, Houreld N · 2026 · Lasers in medical science

The phosphatidylinositol 3-kinase (PI3K), protein kinase B (AKT), mammalian target of rapamycin (mTOR) (PI3K/AKT/mTOR) pathway regulates cell survival, proliferation, and the synthesis of protein. Photobiomodulation (PBM) stimulates…

View details →DOI: 10.1007/s10103-026-04859-8
Negative / Null Result ReportOpen accessMedicine

The effect of sodium bicarbonate mini-tablets in a carbohydrate hydrogel on prolonged high-intensity cycling performance and metabolism in acute normobaric hypoxia.

Shannon ES, Sparks SA, McNaughton LR et al. · 2026 · European journal of applied physiology

PURPOSE: Hydrogen cation (H+) accumulation is exacerbated in hypoxia. Sodium bicarbonate (NaHCO3) ingestion can reduce fatigue associated with high-intensity exercise performance by counteracting H+ ion accumulation. The present study…

View details →DOI: 10.1007/s00421-025-06069-6
Negative / Null Result ReportOpen accessMedicine

Comparison of root coverage by injectable-platelet rich fibrin in thick and thin phenotypes: a parallel-armed, prospective, preliminary clinical study with up to 48 months of follow-up.

Ayyildiz BG, Terzioglu B, Eken S · 2026 · Journal of applied oral science : revista FOB

Objective This study aimed to compare the effectiveness of injectable platelet-rich fibrin (I-PRF) using a submucosal injection technique for creeping attachment in thin and thick phenotypes with gingival recession. Methodology The study…

View details →DOI: 10.1590/1678-7765-2025-0702