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Browse the failure-mode index

12,375 real negative results, null findings, and replication failures in Medicine. 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 ReportMedicine

Vitamin D lowers the number of intestinal tumours in adult intestine-specific Apc-mutant mice only during early tumour initiation in gestation and juvenility.

Rebel HG, de Gruijl FR · 2026 · Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology

We reported earlier that adult FabplCre;Apc 15lox/+ mice with either daily UV exposure or vitamin D supplementation developed not significantly fewer intestinal tumours but less tumour bulk (reduced outgrowth) than control mice that…

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Negative / Null Result ReportMedicine

Omega-3 Long-Chain Polyunsaturated Fatty Acid Supplementation Did Not Reduce Inflammation to Improve Iron Absorption in South African Women Living with Overweight or Obesity.

Uyoga MA, Baumgartner J, Malan L et al. · 2026 · The Journal of nutrition

Background Young South African women face a double-burden of overweight or obesity and iron deficiency, with the former predicting the latter. Omega-3 long-chain polyunsaturated fatty acid (LCPUFA) supplementation can reduce inflammation.…

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Negative / Null Result ReportMedicine

Ultrasound-Guided Superficial Parasternal Intercostal Plane Block for Early Pain Management in Patients Undergoing Cardiac Surgery-A Randomized Controlled Trial.

Kalli AJ, Mäkelä P, Huhtala H et al. · 2026 · Acta anaesthesiologica Scandinavica

Background Sternotomy causes substantial postoperative pain. Recently, several less invasive nerve blocks have been described that are safer to use even on anticoagulated patients. This study aims to evaluate early pain management using…

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Negative / Null Result ReportMedicine

Thoracic duct ligation during esophagectomy fails to prevent chylothorax or improve survival: a propensity score matched cohort study.

Quan S, Xie H, Zhang D et al. · 2026 · Esophagus : official journal of the Japan Esophageal Society

Background Postoperative chylothorax is a serious complication following esophagectomy. The efficacy of thoracic duct ligation (TDL) for chylothorax prevention is controversial. This study aimed to evaluate the impact of TDL on chylothorax…

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Negative / Null Result ReportMedicine

Clinical Outcomes of Anticoagulated vs Non-Anticoagulated Patients with Isolated Distal Deep Venous Thrombosis.

Wick B, Sahibzada O, Cherner A et al. · 2026 · Journal of vascular surgery. Venous and lymphatic disorders

Objective The optimal clinical management of isolated distal deep venous thrombosis (IDDVT) remains controversial as the benefits of routine anticoagulant therapy are not clearly defined amid the risk of bleeding events. Our study aimed to…

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Negative / Null Result ReportMedicine

Antibiotic prophylaxis and risk of orbital cellulitis following orbital floor fracture: a real-world evidence study using the TriNetX network.

Khan S, Simmons KL, Khan S et al. · 2026 · Orbit (Amsterdam, Netherlands)

Purpose To determine whether prophylactic antibiotic administration following the development of an orbital floor fracture or after orbital floor fracture repair is associated with a reduced risk of orbital or periorbital cellulitis.…

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Negative / Null Result ReportMedicine

HSP90 is involved in curcumin-mediated inhibition of tau aggregation.

Kam MK, Kim JW, Choi JY et al. · 2026 · Biochemical and biophysical research communications

Tau aggregation in neurons is a pathological hallmark of Alzheimer's disease (AD). The development of therapeutic drugs that inhibit tau aggregation in tauopathies, including AD, remains challenging. Herein, we developed a tau…

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Negative / Null Result ReportMedicine

The Effect of Bariatric Surgery on Complication Risk Following Total Hip Arthroplasty in Patients with Morbid Obesity.

Lex JR, Ekhtiari S, Entezari B et al. · 2026 · The Journal of bone and joint surgery. American volume

Background Obesity is an independent risk factor for complications following total hip arthroplasty (THA). Preoperative bariatric surgery to facilitate weight loss has been used to reduce complication risk, but its effectiveness remains…

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Negative / Null Result ReportMedicine

Intraoperative PEEP Strategy and Postoperative Pulmonary Complications in Obese Patients: A Randomized Trial with Exploratory Analysis of Smoking Status.

Giaccari LG, Brunetti S, Coppolino F et al. · 2026 · Medical sciences (Basel, Switzerland)

Background : Obesity increases the risk of postoperative pulmonary complications (PPCs), and active smoking may further amplify this risk. Whether smoking status identifies a subgroup of obese surgical patients with differential PPC risk…

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Failed Experiment ReportMedicine

Embryo developmental and morphokinetic patterns in the domestic cat (Felis catus): associations with maternal age and SRT1720 supplementation during oocyte in vitro maturation.

Meco M, Carreira RP, Ochota M et al. · 2026 · Theriogenology

This study describes embryo developmental progression and morphokinetic patterns in embryos derived from oocytes of young and aged domestic cats, a model for endangered felids, using a time-lapse monitoring system. Because maternal aging…

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Negative / Null Result ReportMedicine

Is emotion regulation a mechanism of change in virtual reality-assisted therapy for auditory hallucinations? Secondary analyses of the CHALLENGE randomized clinical trial.

Glenthøj LB, Vernal DL, Mariegaard LS et al. · 2026 · Schizophrenia (Heidelberg, Germany)

Virtual reality (VR)-assisted avatar therapy has shown promising effects for reducing voice-related distress and overall severity of persistent auditory verbal hallucinations (AVH) in psychosis, yet the mechanisms underlying these…

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Negative / Null Result ReportOpen accessMedicine

Fertility and mode of delivery after ileal pouch-anal anastomosis for ulcerative colitis: A population-based study.

Brar MS, Park JJ, de Buck van Overstraeten A · 2026 · Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland

Background and aims Fertility and mode of delivery are major concerns for women with ulcerative colitis (UC) undergoing ileal pouch-anal anastomosis (IPAA). Although infertility after IPAA has been attributed to pelvic adhesions, the…

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Negative / Null Result ReportMedicine

Evaluation of microleakage and remineralization potential of a fissure sealant containing microcapsules on artificial enamel lesions: with and without adhesive application.

Parlak Insel B, Guven Y, Sepet E et al. · 2026 · BMC oral health

Within the concept of minimal invasive dentistry, the progression of initial caries lesions can be inhibited with preventive measures. This study evaluated the microleakage and remineralization potential of a bioactive fissure sealant (FS)…

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Failed Experiment ReportMedicine

Untargeted and targeted fortified balanced energy-protein (BEP) dietary supplementation during pregnancy and birth outcomes: a cluster-randomised effectiveness trial in rural Bangladesh.

Christian P, Ali H, Zavala E et al. · 2026 · BMJ global health

Antenatal balanced energy-protein (BEP) dietary supplementation is a WHO recommendation in undernourished settings, but limited evidence exists on targeting individuals based on nutritional status. We assessed the impact of untargeted and…

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Negative / Null Result ReportMedicine

Daily administration of long-acting adrenocorticotropic hormone (ACTH) alters the developmental pattern of plasma fibrinogen in juvenile rats.

Takeda Y, Sakakibara T, Horiuchi K et al. · 2026 · Brain & development

Background We previously reported that adrenocorticotropic hormone (ACTH) therapy for infantile epileptic spasm syndrome (IESS) decreases plasma fibrinogen (Fbg) levels. However, the underlying mechanism(s) has not been elucidated. An…

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