19,830 real negative results, null findings, and replication failures · 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.
SAK ZHA, SUZERGOZ F · 2026 · Preprint
Abstract Background Obstructive sleep apnea (OSA) and dysglycemia frequently coexist, but pulmonary sleep risk is not always captured by the apnea-hypopnea index (AHI) alone. Because nocturnal hypoxemia may be more closely linked to…
View details →Zhao P, Zhou Y, Zhang C et al. · 2026 · Surgical laparoscopy, endoscopy & percutaneous techniques
Background The optimal suture technique for primary closure after laparoscopic choledochotomy remains uncertain. We compared real-world outcomes of barbed continuous and conventional interrupted sutures in patients with…
View details →Abdelsalam H, Abdalla M, Aied N et al. · 2026 · Medicina (Kaunas, Lithuania)
Background and Objectives : Adenoidectomy is a common pediatric procedure performed and endoscopic, instrumented techniques such as a powered microdebrider and coblation aim to improve visualization and completeness of resection while…
View details →Benedict Vinothini A, Mythilipraba S, Punnen SA et al. · 2026 · Indian journal of medical microbiology
Background Bloodstream infections (BSIs) require rapid identification and susceptibility testing to guide timely antimicrobial therapy. Although paired aerobic and anaerobic blood culture bottles are routinely used, the incremental benefit…
View details →Liu FQ, Ren LN, Zhou XR et al. · 2026 · Gastrointestinal endoscopy
Background and aims This multicenter retrospective cohort study aims to evaluate the efficacy and safety of sphincter-sparing pre-closure technique-assisted endoscopic papillectomy (EP) versus conventional EP for duodenal papilla adenomas.…
View details →Anundson J, Lee L, Bae S et al. · 2026 · Preprint
Abstract Introduction: Lumbar fusion alters spinal biomechanics and may increase hip loading, especially with long-segment constructs. We used a large administrative database to evaluate hip fracture risk after lumbar fusion and assess…
View details →Minoji S, Ishikura H, Kudo M et al. · 2026 · Archives of orthopaedic and trauma surgery
Background Perceived leg length discrepancy (pLLD) is a common source of dissatisfaction after total hip arthroplasty (THA), even in the absence of significant radiographic discrepancies. While spinopelvic factors have been increasingly…
View details →Hirakawa-Ueno K, Makino K, Fukumori R et al. · 2026 · Research in veterinary science
This study evaluated insulin sensitivity and serum pepsinogen in dairy cows from herds with high and low risk for displaced abomasum (DA) across different lactation stages. Blood samples and body condition scores (BCS) were collected from…
View details →Promsut W, Chalalai T, Saechue B et al. · 2026 · BMC veterinary research
Background Time-of-day-related physiological variation may influence immune, oxidative, and endocrine responses to surgical stress. This study evaluated the effects of morning versus afternoon surgical castration on inflammatory cytokine…
View details →Paolini A, Serpieri M, Bonaffini G et al. · 2026 · Animals : an open access journal from MDPI
This retrospective study compared three ultrasound-guided locoregional techniques-transversus abdominis plane (TAP), quadratus lumborum (QL), and caudal thoracic paravertebral (C-TPV) blocks-in dogs undergoing laparoscopic ovariectomy.…
View details →Liu R, Zhang H, Liu C et al. · 2026 · Communications biology
Everyday speech perception often occurs under concurrent cognitive demands, but it remains unclear how speech-extrinsic load influences the neural processing of continuous speech. Here, electroencephalography (EEG) recordings from 29…
View details →van Vliet KE, Lobbezoo F, van Splunter AP et al. · 2026 · BMC oral health
BACKGROUND: We hypothesized that wearing a mouthguard may affect salivary flow and composition. Therefore, we investigated the impact of mouthguard use on saliva secretion rate and some salivary constituents under different jaw activities.…
View details →Medina-Marino A, Shrader C, Axt J et al. · 2026 · Preprint
Abstract Background In sub-Saharan Africa, men with HIV and/or tuberculosis (TB) report negative experiences within health services and demonstrate poorer engagement and treatment outcomes compared to women. We developed and piloted an…
View details →Sönmez ÖA, Demirayak B, Bolat S et al. · 2026 · Preprint
Abstract Purpose To evaluate retinal microvascular changes in pediatric patients with systemic hypertension compared with healthy controls using optical coherence tomography (OCT) and optical coherence tomography angiography (OCTA).…
View details →Limphatcharaporn T, Sinsurin K, Sakulsriprasert P et al. · 2026 · Preprint
Abstract Purpose of the study: to examine the immediate effect of specific warm-up and static stretching on cardiovascular response and oxygen consumption during a 5 km treadmill run using a randomized controlled trial. Method: twenty…
View details →Králik R, Takácsová E, Durdík Š et al. · 2026 · Preprint
Abstract Background The clinical relevance of the BRAF V600E mutation in the surgical management of early-stage differentiated thyroid carcinoma (DTC) remains unclear. Although common in papillary thyroid carcinoma, its role in guiding…
View details →Takatori N, Uchiyama Y, Ito H et al. · 2026 · Journal of tissue viability
Background Intraoperative pressure-related skin injuries remain a concern during surgery under general anaesthesia. Although interface pressures have been evaluated in various surgical positions, sacral pressure in the beach-chair position…
View details →Yokoyama T, Uchino T, Yazawa Y et al. · 2026 · Preprint
Abstract Background Oral semaglutide, a glucagon-like peptide-1 receptor agonist, improves glycemic control and reduces body weight in patients with type 2 diabetes. Although proton pump inhibitors (PPIs) have been reported to slightly…
View details →Harun AS, Shikder AHMZH, Moni SD et al. · 2026 · Journal of oral rehabilitation
Background Migraine has been associated with altered nociceptive processing and may influence the clinical presentation of odontogenic pain. This study evaluated whether migraine is associated with preoperative endodontic pain,…
View details →Zhan C, Liu S, Kang W et al. · 2026 · Environmental pollution (Barking, Essex : 1987)
Black carbon (BC) is an important component of soil organic carbon (SOC), with implications for carbon sequestration and environmental quality, yet its variability across contrasting urban systems remains insufficiently understood. This…
View details →Maeda K, Funahashi H, Tokutake K et al. · 2026 · International orthopaedics
Purpose This study aimed to evaluate postoperative outcomes, including clinical results, radiological assessments, and complications, in patients over 50 years old with nondisplaced femoral neck fractures (Garden classification I-II)…
View details →Liu Y, Liu L, Wang J et al. · 2026 · Endocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists
Objective Nephrotoxicity of bisphosphonates limits their utility in the management of severe hypercalcemia among patients with primary hyperparathyroidism (PHPT) and impaired renal function. It remains unclear whether denosumab is an…
View details →Zheng J, Chen M, Fu J · 2026 · BMC oral health
Background This retrospective cohort study evaluated a Locator-bilateral segmental bar concept (LBSB) for maxillary implant-supported overdentures and compared it with a conventional rigid bar concept (CRB) in terms of implant survival,…
View details →Gentile T, Vanacore S, Caputo M et al. · 2026 · Children (Basel, Switzerland)
Background/objectives Dental anxiety represents a major challenge in paediatric dentistry and is a frequent cause of non-cooperative behaviour during dental treatment. Nitrous oxide/oxygen inhalation conscious sedation is widely used to…
View details →Kurz S, Habich O, Brauer K et al. · 2026 · Preprint
Abstract Purpose To evaluate whether patients aged > 75 years with spinal cord injury (SCI) benefit from specialized inpatient rehabilitation, focusing on functional outcomes and discharge destination. Methods This retrospective…
View details →Aucoin AA, Zhidkov V, Legere RM et al. · 2026 · American journal of veterinary research
Objective To characterize age-related trajectories of the relative concentrations of anti-virulence-associated protein A (VapA) immunoglobulin (Ig)-G1, IgG3/5, IgG4/7, and IgA in serum and bronchoalveolar lavage fluid (BALF) as indicators…
View details →Wang X, Li W, Wang F et al. · 2026 · Pain management nursing : official journal of the American Society of Pain Management Nurses
Purpose The objective of this study was to evaluate whether combining pain neuroscience education (PNE) with progressive muscle relaxation (PMR) could reduce acute pain after thoracoscopic lung resection, alleviate psychological distress,…
View details →Chen L, Xu D, Hou L · 2026 · Medical principles and practice : international journal of the Kuwait University, Health Science Centre
Background/objective Prone percutaneous nephrolithotomy (PCNL) is commonly performed under general anesthesia (GA); however, increasing evidence supports the feasibility of PCNL under spinal anesthesia (SA). This study presents our…
View details →Mao W, Lu N · 2026 · Journal of investigative surgery : the official journal of the Academy of Surgical Research
Objective To evaluate short-term clinical outcomes, surgeon-reported fatigue, and staff user experience associated with a multifunctional operative support arm in reproductive laparoscopic surgery. Design Single-center, parallel-group…
View details →Sorjonen K, Melin B, Melin M · 2026 · Preprint
Based on prospective cross-lagged effects, Zhou and Wang concluded that emotional intelligence and psychological empowerment contribute to increased work engagement among university administrators. However, it is well known that…
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