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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.

20261 results in Negative / Null Result Report · page 493 of 676

Negative / Null Result ReportOpen accessMedicine

Oxidative stress biomarkers and flavonoids in Alzheimer's disease: current clinical evidence and therapeutic perspectives.

Zainuddin MS, Pamidi N, Azman AS et al. · 2026 · Redox report : communications in free radical research

Alzheimer's disease (AD) is a major global neurodegenerative disorder associated with high morbidity and mortality, yet current treatments remain largely symptomatic and ineffective in halting neurodegeneration. Growing evidence links…

View details →DOI: 10.1080/13510002.2026.2677396
Negative / Null Result ReportMedicine

Effects of Janus kinase inhibition and interleukin 6 inhibition on serum cytokine/chemokine in idiopathic multicentric Castleman disease.

Fukui S, Sumiyoshi R, Koga T et al. · 2026 · Drug discoveries & therapeutics

Idiopathic multicentric Castleman disease (iMCD) is a rare lymphoproliferative disease characterized by systemic inflammation. Although IL-6 receptor blockade with tocilizumab is an established treatment, Janus kinase (JAK) inhibition may…

View details →DOI: 10.5582/ddt.2026.01000
Negative / Null Result ReportMedicine

Patient participation in supervised exercise therapy and its impact on outcomes and quality of life in peripheral arterial disease.

Garabet W, Beckamp KH, Shabes P et al. · 2026 · VASA. Zeitschrift fur Gefasskrankheiten

Background: Supervised Exercise Therapy (SET) improves walking performance in patients with peripheral arterial disease (PAD) and intermittent claudication, yet implementation and adherence remain inconsistent. This study evaluated…

View details →DOI: 10.1024/0301-1526/a001280
Negative / Null Result ReportMedicine

Cerebellar iTBS Modulates Cortical Network Properties: An fNIRS Study.

Guo C, Geng A, Wang Q et al. · 2026 · Journal of integrative neuroscience

Background The cortex and cerebellum have a closely connected closed-loop circuit. Intermittent theta burst stimulation (iTBS) targeting the cerebellum has shown promise in improving balance function and inducing neuroplasticity. This…

View details →DOI: 10.31083/jin47653
Negative / Null Result ReportMedicine

Investigating the Effects of Synbiotic Intervention on Working Memory, Attention, and Inhibitory Control in Healthy Young Women.

Salimi Y, Namdarzadeh B, Aarani FD et al. · 2026 · Behavioural brain research

The gut-brain axis plays a key role in the bidirectional communication between the gastrointestinal system and the brain, with gut microbiota significantly influencing cognitive function. While synbiotic and probiotic interventions have…

View details →DOI: 10.1016/j.bbr.2026.116349
Negative / Null Result ReportMedicine

Mutations in the WFYY motif alter human PrimPol activity: structural insights from atomistic MD simulations.

Sudhakar S, Mishra VK, Harikrishna S et al. · 2026 · Physical chemistry chemical physics : PCCP

Human PrimPol (hPrimPol) is the primase and polymerase enzyme involved in reinitiating DNA replication at stalled replication forks. The hPrimPol mutants are linked to multiple ophthalmoplegic conditions and mitochondriopathies. The WFYY…

View details →DOI: 10.1039/d6cp00786d
Negative / Null Result ReportMedicine

Cortical-Subthalamic Interplay During Eyes-Open and Eyes-Closed Resting States in Parkinson's Disease Patients.

Sanmartino F, Rashid-López R, López-Sosa F et al. · 2026 · International journal of neural systems

Resting-state eye conditions modulate cortical oscillations, but their impact on subthalamic nucleus (STN) and cortico-STN dynamics in Parkinson's disease (PD) remains poorly understood. Here, we characterized electrophysiological changes…

View details →DOI: 10.1142/s0129065726500310
Negative / Null Result ReportOpen accessMedicine

Periodontal health of endodontically treated molars restored with composite CAD/CAM endocrowns versus stainless steel crowns in Egyptian children: a randomized controlled trial.

Mabkhot BA, Taha SEE, Kamel MH et al. · 2026 · BMC oral health

BACKGROUND: Subgingival crown margins have been linked to chronic gingival inflammation in pediatric patients. This clinical trial evaluated periodontal outcomes in first permanent molars that had undergone root canal therapy and were…

View details →DOI: 10.1186/s12903-026-08077-0
Negative / Null Result ReportMedicine

Long-Term Betaine Supplementation Increases Creatinine Clearance and Upregulates MAS and AT2 Receptor Expression in Spontaneously Hypertensive Rat Kidneys.

Koper M, Jaworska K, Kopacz W et al. · 2026 · Kidney & blood pressure research

Hypertension contributes to renal dysfunction, partly through dysregulation of the renin-angiotensin system (RAS). Betaine, an osmolyte that helps maintain medullary osmotic gradients, has demonstrated renoprotective effects in models of…

View details →DOI: 10.1159/000552883
Negative / Null Result ReportMedicine

The vital role of distal end location of endotracheal tubes in human trachea.

Wiel É, Menu H, Roger F et al. · 2026 · Anaesthesia, critical care & pain medicine

Background Endotracheal Intubation (ETI) inserts an endotracheal tube (ETT) inside the human trachea to allow a proper mechanical ventilation of the lungs. Practitioners insert the ETT through the human vocal cords following a…

View details →DOI: 10.1016/j.accpm.2026.101878
Negative / Null Result ReportOpen accessMedicine

Association of CD4+/CD8+ T Cell Subsets and Cytokine Profiles with Clinical Outcomes in COVID-19.

Karacaer C, Kaya G, Ergenc H et al. · 2026 · Pakistan journal of medical sciences

Objectives This study aimed to evaluate the prognostic significance of Cluster of Differentiation 4 (CD4+) and Cluster of Differentiation 8 (CD8+) T cell dynamics and cytokine profiles during the early stage of Coronavirus Disease 2019…

View details →DOI: 10.12669/pjms.42.5.15021
Negative / Null Result ReportMedicine

Effects of chin supported maxillary protraction on symphsis morphology.

Oğuz F, Türk SK, Yavan MA · 2026 · Scientific reports

This controlled retrospective study aimed to evaluate the effects of maxillary protraction therapy on mandibular symphysis morphology. In this regard, 35 growing individuals with skeletal class III malocclusion due to maxillary…

View details →DOI: 10.1038/s41598-026-59387-w
Negative / Null Result ReportMedicine

Short-Term Detraining Alters Body Composition and Lipid Profile but Not Performance in Recreational University Swimmers.

Dantsi F, Kypraiou A, Kouvelas N et al. · 2026 · Sports (Basel, Switzerland)

Most detraining research in swimming has focused on competitive athletes, whereas less is known about recreational university swimmers, a population commonly exposed to temporary interruptions in structured training. This study examined…

View details →DOI: 10.3390/sports14060246
Negative / Null Result ReportMedicine

The 10-year stability of three subscale scores of the Self-Report of the Effects of Alcohol measure and their relationship to changes in drinking quantities over the same period.

Schuckit MA, Smith TL, Danko G et al. · 2026 · Alcohol, clinical & experimental research

Objectives The retrospective self-report of the effects of alcohol (SRE) questionnaire generates three scores reflecting drinking quantities required for effects: SRE-5 (first five times of drinking), SRE-3 (recent 3 months of drinking),…

View details →DOI: 10.1111/acer.70269
Negative / Null Result Report

Combining Machine Learning and Process-Based Modelling for Sediment Load Estimation in the Data-Scarce Upper Blue Nile Basin

Worku KB, Bronstert A, Francke T et al. · 2026 · Preprint

The Upper Blue Nile Basin contributes about 60% of the Nile River’s annual streamflow but faces severe sediment-related challenges driven by intense monsoonal erosion and reservoir siltation. Accurate estimation of suspended sediment…

View details →DOI: 10.20944/preprints202606.0541.v1
Negative / Null Result ReportMedicine

Expression of protein kinase A catalytic subunits in healthy and diseased mouse kidneys.

Fuchs S, Majer M, Ma Y et al. · 2026 · Pflugers Archiv : European journal of physiology

Diabetic nephropathy (DN) is characterized by a decline in renal function resulting from hyperglycaemia and is often requiring dialysis or renal transplantation. Yet, the signalling events causing DN and the effective treatment options are…

View details →DOI: 10.1007/s00424-026-03190-z
Negative / Null Result ReportMedicine

Desiccation, but not shading, substantially shifts the microbial community composition of benthic microbial mats in meltwater ponds near Bratina Island, Antarctica.

Noell SE, Colville EC, Marshall A et al. · 2026 · FEMS microbiology ecology

The Bratina Island meltwater ponds (McMurdo Ice Shelf, Antarctica) host complex microbial communities in the form of benthic microbial mats. These ponds are long-lasting but can experience significant alterations in physicochemistry on an…

View details →DOI: 10.1093/femsec/fiag069
Negative / Null Result ReportMedicine

A lifespan study on body schema and perceived reaching distance.

Jahanian Najafabadi A, Rastegari A, Imani H et al. · 2026 · Acta psychologica

The plasticity of body representation in response to tool use is a dynamic process that evolves across the lifespan. Research has shown that tools can become integrated into the body representation, effectively being treated as extensions…

View details →DOI: 10.1016/j.actpsy.2026.106476
Negative / Null Result ReportMedicine

Coverage Among Lawfully Present Immigrants Increased Briefly After Medicaid Threshold Met In Florida, Georgia, And Texas.

Chowdhury M, Bustamante AV · 2026 · Health affairs (Project Hope)

Lawfully present noncitizen immigrants face persistent coverage gaps due to federal restrictions on Medicaid eligibility, including the five-year bar under the 1996 Personal Responsibility and Work Opportunity Reconciliation Act, and…

View details →DOI: 10.1377/hlthaff.2025.01545
Negative / Null Result ReportMedicine

Gait and Balance Function Improves After 12 Weeks of Moderate Intensity Endurance Exercise in Persons with HIV-related Distal Symmetrical Polyneuropathy: A Randomised Controlled Trial.

Yakasai AM, Maharaj SS, Danazumi MS · 2026 · American journal of physical medicine & rehabilitation

Objective This study evaluated the efficacy of endurance exercise on balance impairment and gait disturbance among individuals living with Human Immunodeficiency Virus (HIV)-related distal symmetrical polyneuropathy (DSPN). Design This was…

View details →DOI: 10.1097/phm.0000000000003073