11,325 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.
Sanyal RP, Prashar V, Sunkar R et al. · 2026 · The Biochemical journal
Superoxide dismutases (SODs) are involved in cellular reactive oxygen species (ROS) homeostasis under diverse conditions. Among different plant SODs, CuZnSODs (CSDs) are most abundant and localized to multiple compartments, including…
View details →Radmer S, Andresen JR · 2026 · Journal of surgical case reports
Scapular winging is an uncommon but clinically important sign that is often initially attributed to local shoulder pathology or isolated peripheral nerve injury. We report two patients with exertional scapular winging caused by different…
View details →Turkmen D, Ucuz I, Altunisik N et al. · 2026 · Cutaneous and ocular toxicology
Objective This exploratory study aimed to evaluate the basic temperament and behavioral characteristics of preschool children diagnosed with vitiligo, alopecia areata (AA), and psoriasis, and to compare them with healthy controls.…
View details →Zhakypbek Y, Toktar M, Kossalbayev BD et al. · 2026 · Biology
Dryland soils of the Caspian region of western Kazakhstan are exposed to environmental stress, including drought, alkalinity, low soil organic matter content, and anthropogenic pressure. In this preliminary study, bacterial communities…
View details →Shen Y, Li HX, Dai J et al. · 2026 · Journal of affective disorders
Background Light therapy (LT) may improve sleep and affective disorders in Parkinson's disease (PD), but effects of different intensities and underlying mechanisms remain unclear. Methods Thirty-three patients with PD were randomized to…
View details →Ma Q, Chen K, Wang C et al. · 2026 · PsyCh journal
Previous studies have indicated impaired motor sequence learning in people who stutter (PWS). The present study demonstrates that PWS retain intact sequence learning abilities when motor demands are minimized.
View details →Vockert KL, Winter N, Kirschmann FS et al. · 2026 · Neurological research and practice
Background and aims Hereditary polyneuropathies are rare heterogeneous neurological disorders that cause progressive muscle weakness and disability. As new therapies emerge, sensitive imaging biomarkers to monitor disease progression are…
View details →Johnson L, Chen ZZ, Marshall JG · 2026 · Analytical biochemistry
The detection of human IgG (hIgG) in tris buffer versus fetal calf serum (FCS) served as a model system to explore the factors that contribute to sensitivity of enzyme-linked immunosorbent assay (ELISA) with and without capture reagents.…
View details →Ichikawa S, Shimura A, Kikuchi A et al. · 2026 · Scientific reports
Early childhood is a period of rapid brain maturation and gut microbiome assembly, when emerging behavioral difficulties can shape later mental health and learning trajectories. Microbiota-gut-brain communication has been implicated in…
View details →Blach A, Kiss S, Fontaine A et al. · 2026 · Case reports in obstetrics and gynecology
Background and aims Anti-NMDAR encephalitis is a severe autoimmune encephalitis that is frequently associated with ovarian teratomas, whereas infectious triggers remain incompletely understood. We report a case of ovarian…
View details →Yang J, Zhu D, Liu R et al. · 2026 · Bioresource technology
Partial nitritation (PN) underpins two-stage anaerobic ammonium oxidation-based nitrogen removal, but biomass management in sidestream PN reactors remains largely empirical. This study tested three PN sequencing batch reactors maintained…
View details →Ashraf A, Shamel M, Massieh C et al. · 2026 · BMC oral health
Background Energy drinks are acidic beverages with recognized erosive potential, but their effect on enamel characteristics relevant to orthodontic bonding remains incompletely described. This in vitro study evaluated the effect of…
View details →Ganji SK, Talari K, Maloth RK et al. · 2026 · Rapid communications in mass spectrometry : RCM
Rationale Nitrite anion is among the highly reactive anions and converts the secondary amines to their corresponding carcinogenic N-nitroso metabolites in the human body. Nitrite ion is highly abundant in natural waters and enters the body…
View details →Niu J, Huang W, Zou J · 2026 · Clinical neurology and neurosurgery
Purpose To compare rupture-related signals captured by automatically extracted computed tomography angiography (CTA) morphologic features and threshold-based computed tomography perfusion (CTP) metrics in large unruptured intracranial…
View details →Vencato AA, Juchem ALM, Clerici NJ et al. · 2026 · International journal of biological macromolecules
This study produced six formulations using polyvinyl alcohol (PVA) blended with gelatin or gelatin-starch, incorporating cinnamon powder (CP) or cinnamon essential oil (CEO). Homogeneous nanofibers with diameters ranging from 367 to 532 nm…
View details →Park KW, Kim HY, Kim KA et al. · 2026 · European journal of orthodontics
Objective We aimed to evaluate three-dimensional (3D) maxillary displacement and secondary mandibular changes following miniscrew-assisted rapid palatal expansion (MARPE) according to pretreatment skeletal subtypes, based on the…
View details →Tamini S, Bondesan A, Caroli D et al. · 2026 · Metabolites
Background/Objectives : Pediatric obesity is closely associated with metabolic syndrome (MetS), a condition linked to increased cardiometabolic risk. Early identification of high-risk individuals remains challenging. This study aimed to…
View details →Li J, Song Z, Wang G et al. · 2026 · Frontiers in cell and developmental biology
Background Dilated cardiomyopathy (DCM) is the most common non-ischemic cardiomyopathy and a major cause of heart failure, but disease-specific molecular biomarkers remain limited. This study aimed to identify and prioritize tissue-level,…
View details →An MH, Kim C, Min K et al. · 2026 · Discover oncology
Background The ProtecT randomized trial found similar survival between active surveillance (AS), radiotherapy (RT), and radical prostatectomy (PT) in localized prostate cancer (PC), but observational studies yielded conflicting results.…
View details →Doğan D, Öksüz C, Çakır Ö et al. · 2026 · Biomedicines
Background/Objectives: Differentiating mediastinal lymphadenopathy associated with lung cancer from sarcoidosis remains a clinical challenge because of overlapping imaging findings. This study evaluated whether CT-derived radiomic…
View details →Xie B, Rui Y · 2026 · Plants (Basel, Switzerland)
Nanotechnology has attracted increasing attention in agricultural and environmental research, but the biological effects and potential risks of nanoparticles based on non-essential elements remain insufficiently understood. This study…
View details →Destro JM, Reis BO, Chrisostomo DA et al. · 2026 · Journal of functional biomaterials
This study aimed to evaluate the effects of experimental bioactive glass solutions on dentinal fluid flow and hydraulic conductance in vitro. Dentin blocks of 50 bovine incisors were divided into 5 groups according to the desensitizing…
View details →Xu Z, Su S, Xu Z et al. · 2026 · Frontiers in psychology
The Drive for Muscularity Attitudes Questionnaire (DMAQ) is a brief tool for assessing muscularity-related attitudes. This study translated the DMAQ into Chinese and evaluated its reliability and validity separately in males and females. A…
View details →Koyuncu Z, Evcil FY, Kilimci ÖS et al. · 2026 · BMC psychiatry
Objective This study investigated whether current comorbid psychiatric symptoms were involved in statistical indirect associations between childhood attention-deficit/hyperactivity disorder (ADHD) symptoms (CAS) and functional impairment…
View details →Gessler KB, Rescaroli J, Pires SM et al. · 2026 · Neurotoxicity research
Atorvastatin is a widely prescribed statin used for its cholesterol-lowering effects; however, it also exerts known pleiotropic effects, including antioxidant and anti-inflammatory properties. Atorvastatin´s impact on mitochondrial…
View details →Tuo Y, Yang S, Dai X et al. · 2026 · Journal of ethnopharmacology
Ethnopharmacological relevance Syringa oblata Lindl. emits a variety of biogenic volatile organic compounds (BVOCs) during full bloom, which forms the key chemical basis for its characteristic floral scent. Species of the genus Syringa…
View details →Zhen B, Yang X, Yao B · 2026 · Scandinavian journal of psychology
Child abuse has been significantly associated with children's mobile phone dependence (MPD), particularly in left-behind children (LBC). However, whether distinct forms of child abuse (physical and emotional) are associated with MPD in LBC…
View details →Partoazar A, Shahabi S, Afrasiabi S · 2026 · BMC oral health
Background Biofilms contribute to the dental calculus formation, which in turn deteriorates oral and systemic health. The use of antimicrobial photodynamic therapy (PDT) may be limited by problems with photosensitizer penetration. In…
View details →Lipa AJ, Janata-Schwatczek K, Sterz M et al. · 2026 · Seminars in thrombosis and hemostasis
Pulmonary embolism (PE) in octogenarians (i.e., patients > 80 years) is associated with substantial morbidity and mortality, yet this population remains underrepresented in major studies. We compared the predictive performance of the…
View details →Chen W, Ge X, Hu C et al. · 2026 · Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology
Prospective studies are necessary to determine the association between circulating proteins and colorectal cancer (CRC) risk, offering non-invasive biomarkers for early CRC risk prediction and interventions. The Olink Explore-3072 platform…
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