11,412 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.
Pandelides Z, Arblaster J, Pandelides AF et al. · 2026 · Integrated environmental assessment and management
To understand the significance of bivalve consumption as an exposure route for per- and polyfluoroalkyl substances (PFASs), the presence of PFASs in bivalve tissues at PFAS-affected sites and bivalve specific bioaccumulation metrics are…
View details →Özyürek P, Kılıç İ, Akarsu A et al. · 2026 · BMC nursing
OBJECTIVES: This study aimed to evaluate the effect of moral distress experienced by intensive care nurses on their attitudes toward end-of-life care and their care behaviors. METHODS: This cross-sectional and correlational study was…
View details →Şahin O · 2026 · Journal of animal science and technology
The aim of this study was to investigate the effects of solar radiation on spermatozoa motility and abnormalities. The material of the study consisted of 28 bulls of the Holstein Friesian, Brown Swiss and Simmental breeds reared in a…
View details →Duran S, Demirci HT · 2025 · Journal of ethnicity in substance abuse
This relational survey study aims to examine the relationship between attachment styles, coping styles, and psychological resilience levels in adults seeking treatment for alcohol and substance use disorders. The study was conducted with…
View details →Gonzalez B, Healy LG, Harrison LR et al. · 2026 · BMJ open
Objectives Meperidine, once viewed as relatively safe, is now discouraged in clinical settings due to its associated risks. Previous studies have identified a significant decrease in meperidine distribution across the USA from 2000 to…
View details →Emeish CM, Saadeh A, Haroon Al-Kubaisi S et al. · 2026 · International journal of environmental health research
CVS prevalence was found to be 76.9%. Females had higher odds of CVS (OR = 1.834, p = 0.028). Each one-unit increase in screen time was associated with higher odds of CVS (OR = 1.340, p = 0.030). Each one-unit increase in screen distance…
View details →Zahiri M, Yazdani A, Honarvar B et al. · 2026 · Health science reports
Background and aims The acceptance of technology is a critical factor influencing the success of health information systems. This study aimed to investigate the key factors affecting physicians' acceptance of electronic prescription…
View details →Costa LG, Saldanha JM, da Silva-Filho JE et al. · 2026 · Iranian endodontic journal
Introduction This study aimed to evaluate the bond strength of a bioceramic endodontic sealer and AH-Plus sealer irrigated with 2% chlorhexidine (CHX), compared to irrigation with 2.5% sodium hypochlorite (NaOCl) as a control group.…
View details →Senén-Carramolino R, Navarro-Fraile E, Dehesa-Santos A et al. · 2026 · The Angle orthodontist
Objectives To assess the reliability of the diagnostic method using Diagnocat artificial intelligence (AI)-generated standard tessellation language (STL) files and Geomagic Wrap software and to evaluate whether cone-beam computed…
View details →Yayla U, Orenc P · 2026 · BMC ophthalmology
Background This study aims to compare intraocular pressure (IOP) reduction, surgical success, antiglaucoma medication (AGM) usage, complication profiles, and structural and functional outcomes between phacoemulsification combined with bent…
View details →Lin R, Wang C, Xu K et al. · 2026 · Cryobiology
The challenge with spermatozoa retrieval in non-obstructive azoospermia (NOA) patients is that testicular spermatozoa are frequently immotile and exceedingly scarce. The cryopreservation of these limited spermatozoa and the subsequent…
View details →Eyceyurt RS, Suer O, Uzakgider M et al. · 2026 · Scientific reports
Stable fixation of displaced simple transverse olecranon fractures is required to maintain reduction under triceps traction and enable early elbow motion. Although Weber tension band fixation is widely used, the biomechanical influence of…
View details →Martins AP, Games BMM, de Siqueira CE et al. · 2026 · Veterinary medicine international
Introduction Lidocaine is a local anesthetic widely used in veterinary medicine and can be administered intravenously as a continuous infusion during general anesthesia. In addition to its analgesic and anti-inflammatory properties,…
View details →Chen Y, Que YT, Shi D et al. · 2026 · European journal of radiology
Purpose To investigate the diagnostic performance of spectral detector CT (SDCT)-derived reconstructions, including iodine density overlay maps (IDOM) and virtual monoenergetic images at 40 keV (VMI 40keV ), in assessing extramural venous…
View details →de Santana YVS, Vasconcelos EEM, de Melo Monteiro GQ et al. · 2026 · Biomaterial investigations in dentistry
Objective To evaluate the behavior of bioactive glass (BAG)-filled resin composites (Beautifil II / Shofu-BR and Beautifil Flow Plus / Shofu-BF) compared with conventional resin composites (Filtek Z350 XT / Solventum-ZR and Filtek Supreme…
View details →Aslan Ö, Yıldırım A, Durak MH · 2026 · Anti-cancer agents in medicinal chemistry
Introduction To evaluate the effects of dietary Bryonia multiflora Boiss. & Heldr. (B. multiflora) Extract, a rat breast cancer model was used that had been induced chemically with 7,12-dimethylbenz[a]anthracene (DMBA). In the study,…
View details →Liu P, Shi X, Hu J et al. · 2026 · BMC geriatrics
Background We analyzed data from older patients (≥ 65 years) with hip fractures who underwent surgical treatment with unilateral epidural anesthesia (UEA) or combined spinal-epidural anesthesia (CSEA) to compare perioperative outcomes…
View details →Delgado-Flores L, Pérez-Abad M, Di Felice Ardente P et al. · 2026 · Journal of orthopaedic surgery and research
Hypothesis/background Reverse shoulder arthroplasty (RSA) is increasingly used for complex proximal humerus fractures (PHFs). Although lateralized designs have demonstrated advantages in elective indications, their role in acute PHFs…
View details →Liu G, Wang J, Li G et al. · 2026 · Frontiers in psychiatry
Objective This study aims to extract and quantitatively analyze the tree drawing projection indices from groups of patients with depression, patients in remission, and a normal control group, to explore characteristic indicators of tree…
View details →Wang F, Sheng J, Zhang G et al. · 2026 · Health physics
Reducing radiation exposure in pediatric imaging is a key focus globally, and it is necessary to establish diagnostic reference levels (DRLs) for contrast-enhanced computed tomography (CT) in children. This study assesses typical radiation…
View details →Ömezli MM, Torul D, Doğanay Z · 2026 · Quintessence international (Berlin, Germany : 1985)
Purpose The aim of this study was to explore the physical and clinical efficacy of different suture materials used following impacted third molar surgery. Patients and methods This retrospective study included patients who underwent…
View details →Dodd SAS, Adolphe JL, Shoveller AK et al. · 2025 · Frontiers in veterinary science
Introduction Dogs are omnivores, not herbivores, and yet entirely plant-based diets are formulated to meet their current known nutrient recommendations. However, little is known about the metabolic effects of feeding diets containing no…
View details →Ilanjian G, Matthey J, Porões F et al. · 2026 · Abdominal radiology (New York)
Objectives Accurate preoperative identification of extraprostatic extension (EPE) in prostate cancer (PCa) is important for treatment strategies. This retrospective study aimed to determine which MRI sequence provides the most accurate…
View details →Borgognoni AB, Freund SS, Baas J et al. · 2026 · Frontiers in surgery
Introduction Early osseointegration is critical for long-term implant stability, and in-house 3D-printed porous surfaces may enhance bone integration by promoting cellular migration and tissue formation, provided that porosity is balanced…
View details →Tural E, Coşkun ADE, Demi̇r D et al. · 2026 · BMC pregnancy and childbirth
Background The aim of our study is to compare the markers and parameters obtained from complete blood count between patients diagnosed with missed abortion in the first trimester and a healthy pregnant control group. Materials and methods…
View details →Yılmaz E, Güler M, Midilli S et al. · 2026 · Fish physiology and biochemistry
This study evaluated the effects of replacing corn gluten with corn fermented protein in the diets of European sea bass (Dicentrarchus labrax) juveniles (25.9 ± 0.2 g) during a 60-day feeding trial. Four experimental diets were prepared by…
View details →Mukandi I, Turner A, Bishop C et al. · 2026 · Journal of strength and conditioning research
Abstract Mukandi, I, Turner, A, Bishop, C, Beato, M. Neuromuscular and subjective recovery responses to day and night fixtures during congested and noncongested microcycles in professional soccer players. J Strength Cond Res XX(X):…
View details →Çıkman AŞ, Öksüzer MÇ, Hatipoğlu Ö et al. · 2026 · Odontology
Post-endodontic pain is a major concern that negatively impacts patients' quality of life. To date, there is no study examining the effect of the menstrual cycle on post-endodontic pain. Thus, this study aimed to elucidate any significant…
View details →Wang F, Wang T, Lu G et al. · 2026 · Journal of orthopaedic surgery and research
Background Unilateral biportal endoscopy (UBE) can be performed to treat lumbar disc herniation (LDH). Nevertheless, the postoperative clinical outcomes and spinal biomechanical implications following partial discectomy and laminectomy,…
View details →Molnár A, Mavrogeni P, Maihoub S · 2026 · Audiology research
Objectives: This study aimed to analyse the effects of educational levels, sex, and residence on tinnitus-related distress, as well as the severity of depression and anxiety. Material and methods: A total of 235 patients with primary…
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