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Browse the failure-mode index

11,416 real negative results, null findings, and replication failures in Medicine · 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 ReportOpen accessMedicine

The association of previous and current non-chronic low back pain with daily physical activity in middle- and older-aged adults.

Gonçalves TR, Cunha DB, Mediano MFF et al. · 2025 · BMC public health

Background Low back pain (LBP) is a leading cause of years lived with disability. However, the association of non-chronic LBP with levels of daily physical activity (PA) remains poorly explored. This study investigated the association…

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Negative / Null Result ReportMedicine

Lack of association between rs1049353 polymorphism of the CNR1 gene and suicide attempt frequency in Polish population.

Wierzbiński P, Henzler M, Hubska J · 2022 · Polski merkuriusz lekarski : organ Polskiego Towarzystwa Lekarskiego

Suicidal behaviour is a major public health problem in Poland. There is compelling evidence that genetic factors contribute to the risk for suicidal behavior. Studies suggest a link between single nucleotide polymorphism (SNP) rs1049353…

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Negative / Null Result ReportOpen accessMedicine

Retrospective Study of Serum Vitamin D Levels and Metabolic-Associated Fatty Liver Disease in 222 Children and Adolescents Aged 6-18 Years With Obesity.

Gümüş CY, Özer Y, Kaşko Arıcı Y · 2026 · Medical science monitor : international medical journal of experimental and clinical research

BACKGROUND Vitamin D deficiency is common in pediatric obesity and has been proposed to contribute to metabolic-associated fatty liver disease (MAFLD). This retrospective study aimed to evaluate serum 25-hydroxyvitamin D (25[OH]D) levels…

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Negative / Null Result ReportOpen accessMedicine

The lack of association between different LDL-C levels and oxidized LDL in patients with type 2 diabetes.

Rabizadeh S, Seyedi SA, Nabipoorashrafi SA et al. · 2023 · Chronic diseases and translational medicine

Background High concentrations of low-density lipoprotein cholesterol (LDL-C) have been a known risk factor for cardiovascular diseases. Also, the role of oxidized LDL (ox-LDL) in forming atherosclerosis plaque has been proven. However, it…

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Negative / Null Result ReportMedicine

Goal Concordance in the Advancing Symptom Alleviation with Palliative Treatment Clinical Trial of a Nurse and Social Worker Palliative Telecare Team Intervention.

Lange AV, Hess E, Barón AE et al. · 2026 · Journal of palliative medicine

Background Providing and measuring goal-concordant care is a priority. Objective Determine the effect of a nurse and social worker palliative telecare team intervention on goal concordance and participants' understanding of care focus.…

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Negative / Null Result ReportOpen accessMedicine

A case-control study on the diagnostic role of Omega-3 fatty acid levels in erythrocyte membranes of critically ill patients.

Dorchin M, Nasiri-Jounaghani M, Hashemi-Javaheri FS et al. · 2025 · Scientific reports

This study aimed to investigate the erythrocyte Omega-3 fatty acid index as a potential biomarker for clinical severity, nutritional status, and mortality risk in critically ill patients admitted to the intensive care unit (ICU). Using a…

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Negative / Null Result ReportMedicine

Effectiveness of a School-Based Substance Use Prevention Program in Reducing Primary School Students' Intentions to Use Tobacco, Alcohol or Other Drugs in the Future.

Hodder RK, O'Brien KM, Wolfenden L et al. · 2026 · Health promotion journal of Australia : official journal of Australian Association of Health Promotion Professionals

Issue addressed Tobacco, alcohol and other drug use contribute significantly to the global burden of disease, with initiation typically occurring during childhood and adolescence. School-based substance use prevention interventions are…

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Negative / Null Result ReportMedicine

Age-related changes and lack of effect of midlife resistance wheel exercise on afferent connectivity of lumbar alpha motor neurons in ageing mouse spinal cord.

S Krishnan V, Hodgetts SI, Harvey AR et al. · 2025 · Biogerontology

This two part study on the afferent connectivity of lumbar spinal motor neurons in normal ageing mice investigates; Study 1: time course analysis of age-related changes in the synaptic coverage of lumbar spinal cords of male C57BL/BJ mice…

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Negative / Null Result ReportMedicine

Percutaneous gastrostomy, mechanical ventilation and survival in amyotrophic lateral sclerosis: an observational study in an incident cohort.

Borghero G, Pierri V, Pili F et al. · 2024 · Amyotrophic lateral sclerosis & frontotemporal degeneration

Objective To analyze disease-modifying effects of percutaneous endoscopic gastrostomy (PEG) insertion for supporting nutrition, noninvasive ventilation (NIV), and tracheostomy-assisted ('invasive') ventilation (TIV) in amyotrophic lateral…

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Negative / Null Result ReportMedicine

Triiodothyronine supplementation in a sheep model of intensive care.

Maiden MJ, Torpy DJ, Ludbrook GL et al. · 2024 · Experimental and therapeutic medicine

Triiodothyronine (T3) concentrations in plasma decrease during acute illness and it is unclear if this contributes to disease. Clinical and laboratory studies of T3 supplementation in disease have revealed little or no effect. It is…

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Negative / Null Result ReportMedicine

Preloading With Nicotine Replacement Therapy in People With HIV Who Smoke: A Pilot Randomized Controlled Trial.

Cioe PA, Stang GS, Azam D et al. · 2025 · Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco

Introduction Smoking cessation rates in people with HIV (PWH) are lower than in the general population, even when evidence-based treatments are used. This 16-week study examined the feasibility, acceptability, and preliminary efficacy of…

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Negative / Null Result ReportMedicine

Whole cottonseed and palmitic and oleic acid supplementation improve production responses during the immediate postpartum in multiparous dairy cows.

Parales-Girón JE, Dos Santos Neto JM, Lock AL · 2026 · Journal of dairy science

We evaluated the effects of whole cottonseed (WCS) and fatty acid (FA) supplementation on the production responses of early-lactation cows. Fifty-two multiparous cows were used in a randomized complete block design with a 2 × 2 factorial…

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Negative / Null Result ReportMedicine

Two-year real-world retrospective safety evaluation with onabotulinumtoxinA across multiple therapeutic indications: Findings from the SYNCHRONIZE study.

Forde G, Ifantides KB, Mayadev A et al. · 2026 · Toxicon : official journal of the International Society on Toxinology

OnabotulinumtoxinA (onabotA) is approved for the treatment of various therapeutic indications, which require retreatment. In clinical practice, many patients receive onabotA for multiple therapeutic indications concomitantly over extended…

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Negative / Null Result ReportMedicine

Combined Effects of Fish, Light and Allochthonous Dissolved Organic Carbon on Interactions Between Green and Brown Food Webs: An Aquatic Mesocosm Experiment

Quévreux P, Zou K, Barot S et al. · 2025 · Freshwater Biology

The classical concepts of top‐down and bottom‐up cascading effects in ecosystems are challenged by the interactions between green and brown food webs. The green food web relies on photosynthesis and the brown food web relies on the…

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Negative / Null Result ReportMedicine

Challenges and lessons learned in attempts to develop in vitro models for ultrasound neuromodulation using local field potential measurements in hippocampal tissue.

Prieto ML, Madison DV, Maduke M · 2025 · Biophysical journal

Ultrasound neuromodulation is a rapidly developing tool for noninvasive control of brain activity. An in vitro model recapitulating the effects of ultrasound on neural tissue in vivo would be extremely valuable in guiding the development…

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Negative / Null Result ReportMedicine

Pumping Behaviors of Breast Pump-Dependent Mothers of Preterm Infants in the Neonatal Intensive Care Unit (NICU): Importance of the First Five Postpartum Days.

Medina Poeliniz C, Hoban R, Janes J et al. · 2025 · Breastfeeding medicine : the official journal of the Academy of Breastfeeding Medicine

Objective: To determine if cumulative measures of pumping behaviors over the first 5 days postpartum predicted lactation outcomes by postpartum days 7 (achievement of secretory activation [SA] and pumped milk volume) and 14 (achievement of…

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