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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.

21368 results · page 649 of 713

Negative / Null Result ReportOpen accessMedicine

Axial Length Asymmetry in Patients with Unilateral Retinal Detachment.

Wang H, Loke JY, Chan WO et al. · 2026 · Medicina (Kaunas, Lithuania)

Background and Objectives: Increased axial length is a major risk factor for retinal detachment. This study explored whether, in individuals presenting with unilateral disease, the longer eye was more likely to have rhegmatogenous disease.…

View details →DOI: 10.3390/medicina62030514
Negative / Null Result ReportMedicine

Cold-knife conization versus loop electrosurgical excision for cervical adenocarcinoma in situ: a retrospective cohort study.

Abudurehemu S, Wang X, Wang J et al. · 2026 · BMC women's health

Objective The purpose of this study was to compare the efficacy of cold-knife conization (CKC) and loop electrosurgical excision procedure (LEEP) in treating cervical adenocarcinoma in situ (AIS) and identify relevant risk factors within a…

View details →DOI: 10.1186/s12905-026-04540-w
Negative / Null Result ReportOpen accessMedicine

Dexmedetomidine and Apigenin Combination Mitigates Memory Deficits Caused by Microglial Activation and Hippocampal Neurogenesis Impairment in Methotrexate-Induced Chemo-Brain in Rats.

Yousef EM, Eldemerdash OM, Senousy MA et al. · 2026 · Neural plasticity

Dexmedetomidine (Dex), an α2-adrenergic receptor agonist, and apigenin (Api), a naturally occurring bioflavonoid, have recently shown neuroprotective effects in experimental models of methotrexate (MTX)-induced neurotoxicity; however, the…

View details →DOI: 10.1155/np/9434180
Negative / Null Result ReportOpen accessMedicine

Can Lactate Values Predict Postoperative Atrial Fibrillation Following Coronary Artery Bypass Graft Surgery? A Prospective Observational Study.

Temiztürk Z, Beyazal OF, Topçu AC et al. · 2026 · Brazilian journal of cardiovascular surgery

Introduction The aim of our study is to investigate the relationship and predictive significance of routinely measured serum lactate values with postoperative atrial fibrillation (POAF) in patients following isolated coronary artery bypass…

View details →DOI: 10.21470/1678-9741-2024-0440
Negative / Null Result ReportMedicine

Computed tomography based distal femoral morphology and comparative multi-implant total knee replacement fit analysis in a South East London population.

Eveson TE, Davis TP, Tindall AJ · 2026 · Journal of orthopaedics

Background Accurate medio-lateral sizing of the distal femur during total knee replacement (TKR) is essential to optimise implant fit and avoid over- or under-hang, which have been associated with suboptimal outcomes. National guidance…

View details →DOI: 10.1016/j.jor.2026.04.018
Negative / Null Result ReportOpen accessMedicine

Survival Benefit of Adjuvant Radiotherapy After Surgery in Patients With T1-2N1M0 Hypopharyngeal Squamous Cell Carcinoma: A Dual-Cohort Analysis of SEER and Institutional Data.

Hu Z, Ma R, Wen Y et al. · 2026 · Cancer medicine

Background The optimal therapeutic strategy for patients with T2-3N0-3 M0 or T1N1-3 M0 hypopharyngeal squamous cell carcinoma (HPSCC) and the use of postoperative radiotherapy with or without systemic therapy for patients with T1-2N1M0…

View details →DOI: 10.1002/cam4.71555
Negative / Null Result ReportOpen accessMedicine

Effect of diode laser biostimulation on implant stability, post-surgical inflammation, and bone healing in immediate implant in the maxillary premolars. A randomized double-blind trial.

Kassem BA, Osman SM, El-Mahallawy Y · 2026 · Clinical oral investigations

INTRODUCTION: The stimulatory effects of laser Biostimulation on immediate implant clinical wound healing and radiographic bone quality analysis is with insufficient evidence. AIM: To evaluate the effect of low-level diode laser as a…

View details →DOI: 10.1007/s00784-026-06847-2
Negative / Null Result ReportOpen accessMedicine

Clinical characteristics and prognostic differences between elderly-onset and adult-onset ulcerative colitis: a two-center retrospective cohort study.

Li H, Ding S, Li J et al. · 2026 · Frontiers in medicine

Background The incidence of elderly-onset ulcerative colitis (EO-UC) has been gradually increasing. The unique characteristics of clinical manifestations, therapeutic strategies, and prognosis in EO-UC patients compared with adult-onset…

View details →DOI: 10.3389/fmed.2026.1847513
Negative / Null Result ReportMedicine

[Mechanism of vitamin K2 in modulating matrix Gla protein to inhibit tumor growth in inflammation-associated colorectal cancer model mice].

Zhang HM, Wu MX, Wang HY et al. · 2026 · Zhonghua yi xue za zhi

Objective: To explore the mechanism of vitamin K2 (VitK2) regulating matrix Gla protein (MGP) in inhibiting tumor growth in inflammation-associated colorectal cancer (CAC) model mice. Methods: Twenty-six C57BL/6 male mice, 6-8 weeks old…

View details →DOI: 10.3760/cma.j.cn112137-20250708-01661
Negative / Null Result ReportOpen accessMedicine

Effectiveness of prophylactic single-dose IV antibiotic versus postoperative multi-dose oral antibiotic regimen for preventing surgical site infections: A prospective comparative study.

Pusdekar VP, Dare G, Bhojwani P et al. · 2026 · Turkish journal of surgery

Objective Surgical site infections (SSIs) are among the most common postoperative complications, contributing to morbidity, prolonged hospital stays, and healthcare costs. Prophylactic antibiotics are widely used, but the optimal regimen…

View details →DOI: 10.47717/turkjsurg.2026.2025-9-30
Negative / Null Result ReportMedicine

The effects of repetitive transcranial magnetic stimulation over the lateral parietal region on episodic future thinking and episodic memory.

Toufexis C, Grant JB, van Boxtel JJA et al. · 2026 · Consciousness and cognition

The left angular gyrus (AG) has been implicated in the level of detail elicited during both episodic memory (EM) and episodic future thinking (EFT). This study aimed to investigate whether repetitive transcranial magnetic stimulation…

View details →DOI: 10.1016/j.concog.2026.104070
Negative / Null Result ReportOpen accessMedicine

Radiation Countermeasure Gamma-Tocotrienol Inhibits Accumulation of Lipid Peroxidation Products in the Serum of Nonhuman Primates Exposed to Partial- or Total-Body Radiation-A Hallmark of Inhibition of Irradiation-Induced Ferroptosis?

Brzóska K, Carpenter AD, Petrus SA et al. · 2026 · International journal of molecular sciences

Gamma-tocotrienol (GT3) is one of the constituents of vitamin E that demonstrated significant radioprotective efficacy in murine and nonhuman primate (NHP) models. Considering the antioxidant activity of GT3 and its role in terminating…

View details →DOI: 10.3390/ijms27083387
Negative / Null Result ReportOpen accessMedicine

Robotic-assisted <i>versus</i> laparoscopic cholecystectomy: a matched study in pediatric cases at a single center.

Ha S, Kwon H, Namgoong JM et al. · 2026 · Annals of surgical treatment and research

Purpose In the past decade, advancements in robotic surgery have significantly expanded its application into diverse fields, including urological, gastrointestinal, hepatobiliary, and gynecological procedures. However, comparative outcome…

View details →DOI: 10.4174/astr.2026.110.3.188
Methods Dead-EndMedicine

A novel engineered vector for TA cloning of PCR products.

Samiei A, Najafabadi ZH, Akbari N et al. · 2026 · Journal of applied genetics

INTRODUCTION: Optimized vectors are crucial in modern molecular biology because they greatly enhance the efficiency of the DNA cloning procedure. This study aimed to design a novel engineered vector containing an HphI cassette to enhance…

View details →DOI: 10.1007/s13353-026-01050-1
Methods Dead-EndOpen accessMedicine

Comparison of Three Behavior Modification Techniques for Management of Anxious Pediatric Dental Patients Aged 4-6 Years during Cavity Preparation Using Airotor: A Randomized Controlled Trial.

Safoora AK, Vadakkepurayil K, Santhakumar M · 2026 · International journal of clinical pediatric dentistry

Background and objectives Dental anxiety is frequently observed in children and often poses a significant challenge to providing effective and high-quality dental care. Managing a child's anxiety in the clinical setting is a critical…

View details →DOI: 10.5005/jp-journals-10005-3475
Negative / Null Result ReportMedicine

Transanastomotic Tube Use and Anastomotic Stricture: A Multicenter Prospective Randomized Trial in Neonates Undergoing Repair of Type C Esophageal Atresia with Distal Tracheoesophageal Fistula.

Lee J, Russell KW, Smith C et al. · 2026 · Annals of surgery

Objective Anastomotic stricture (AS) is the most common complication following repair of type C esophageal atresia with distal tracheoesophageal fistula (EA/TEF). Retrospective studies suggest transanastomotic tube (TT) use may increase AS…

View details →DOI: 10.1097/sla.0000000000007132
Negative / Null Result ReportOpen accessMedicine

Nutrition literacy and diet quality among adolescents in North Cyprus: a school-based cross-sectional study.

Bolçocuk D, Sürücüoğlu MS · 2026 · Journal of health, population, and nutrition

Background Nutrition literacy has been increasingly recognized as a fundamental determinant of healthy eating behaviors during adolescence. Adolescence is a critical phase for growth and adoption of long-term healthy habits. However, there…

View details →DOI: 10.1186/s41043-026-01304-y
Negative / Null Result ReportMedicine

Exploring the advantages of mixed reality technology in Robot-assisted laparoscopic partial adrenalectomy.

Zou XC, Wu ZH, Xu XD et al. · 2026 · World journal of surgical oncology

Background and purpose As an emerging interactive display technology, mixed reality(MR) allows for the integration of multi-dimensional virtual objects with the real world, enhancing the precision of surgical operations. This technology…

View details →DOI: 10.1186/s12957-026-04398-0
Negative / Null Result ReportOpen accessMedicine

Impact of superior mesenteric artery (SMA) adherent tissue in the context of pancreatic head resections- an observational study.

Azizian A, Bernhardt M, Rühlmann F et al. · 2026 · BMC cancer

Background Resection of the periadventitial neurolymphatic tissue around the superior mesenteric artery (SMA) is considered a crucial component of oncologically complete resection in pancreatic head and corpus carcinomas. However, a…

View details →DOI: 10.1186/s12885-026-16278-7
Negative / Null Result ReportOpen accessMedicine

Electrical muscle stimulation towards self-physiotherapy on myofascial pain syndrome.

Churproong S, Metcalfe B, Mcguigan P et al. · 2026 · Frontiers in rehabilitation sciences

Background Myofascial trigger points (MTrPs) are the cause of pain from myofascial pain syndrome (MPS), frequently in the trapezius muscle (TM). Working adults often avoid treatment due to the need for therapist assistance and limited…

View details →DOI: 10.3389/fresc.2026.1817369
Negative / Null Result ReportMedicine

Treatment Outcomes in Frail Patients with Advanced Pancreatic Ductal Adenocarcinoma: A Real-World Comparison of Gemcitabine, S-1, and Stereotactic Ablative Radiotherapy.

Kim CH, Kim EJ, Lee TS et al. · 2026 · Oncology

Background Elderly patients or those with poor performance status are underrepresented in clinical trials of pancreatic ductal adenocarcinoma (PDAC), and optimal treatment strategies for this frail population remain unclear. In real-world…

View details →DOI: 10.1159/000552276
Negative / Null Result ReportMedicine

The outcome of pulp revascularization of necrotic mature permanent teeth with periapical lesions using platelet-rich fibrin versus induced bleeding: a prospective preliminary randomized clinical trial.

Awawdeh L, Almesleh B, Hammouri H et al. · 2026 · Clinical oral investigations

Objectives The present study evaluated clinically and radiographically the effectiveness of Regenerative endodontic procedures (REPs) using platelet-rich fibrin (PRF) versus induced bleeding (IB) in treating mature necrotic teeth.…

View details →DOI: 10.1007/s00784-026-06877-w
Negative / Null Result ReportOpen accessMedicine

Effects of acute high-intensity exercise on heart rate variability following rapid weight loss in elite wrestlers.

Yıldırım Y, Arabacı R, Rodoplu C et al. · 2026 · Scientific reports

Investigating how the autonomic functions of the heart are affected during rapid weight loss practices is extremely important for athletes’ health. This study aimed to investigate how rapid weight loss (3–5%) affects heart rate variability…

View details →DOI: 10.1038/s41598-026-38394-x
Negative / Null Result ReportOpen accessMedicine

Clinical Microbial Contamination of Multidose Brimonidine: A Prospective Comparison of Benzalkonium Chloride and Purite® Preservatives.

Karaca S, Yilmaz OF, Sarmis A et al. · 2026 · Journal of ophthalmology

Objective To compare microbial contamination between multidose brimonidine eye drops preserved with benzalkonium chloride (BAK-MDB) and multidose brimonidine eye drops preserved with Purite® (PUR-MDB) using a comparative approach on the…

View details →DOI: 10.1155/joph/2867565
Negative / Null Result ReportOpen accessMedicine

Effect of Universal Adhesives on Resin Cement-Fiber Post-Core Materials.

Irie M, Okada M, Maruo Y et al. · 2026 · Polymers

This study evaluated eleven resin cements used as core build-up materials by examining the following properties: (a) push-out force between root dentin and the fiber post; (b) pull-out force between the fiber post and the core build-up…

View details →DOI: 10.3390/polym18070810
Negative / Null Result ReportMedicine

Ultrasound-Guided Transperineal Versus Transrectal Prostate Aspiration Biopsy in Diagnosing Prostate Cancer: An Observational Comparison Study.

Cao Y, Zhu H, Wu J · 2026 · Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine

Background Ultrasound-guided prostate biopsy is the standard method for the diagnosis of prostate cancer. However, the effect of the optimal puncture approach on diagnostic yield and patient outcomes remains controversial. Objective To…

View details →DOI: 10.1002/jum.70255