11,326 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.
Zhu L, Thungjaroenkul P, Abhicharttibutra K et al. · 2026 · Journal of nursing measurement
Background and Purpose: Patient participation is fundamental to modern health care. No validated instrument exists to assess nurses' performance in enhancing patient participation within Chinese health care. This study developed and…
View details →Takla MKN, Rageh MRM, Aboalata MAM et al. · 2026 · Journal of back and musculoskeletal rehabilitation
BackgroundRecurrent hamstring strain injuries are associated with deficits in eccentric strength and altered muscle-tendon extensibility, which may persist and contribute to reinjury risk.ObjectiveTo examine the relationship between…
View details →Solera-de-Andrés C, Spang-Valencia P, Peralta-Calvo J · 2026 · The British journal of ophthalmology
Background Retinoblastoma (RB) treatment aims to ensure survival, globe preservation and visual function. Intra-arterial chemotherapy (IAC) has improved globe salvage, but there remains limited information on visual outcomes following this…
View details →Militsi E, Reingewirtz Y, Séverac F et al. · 2026 · Oral diseases
Background This study assessed the feasibility of remote halitosis diagnosis by evaluating VSC stability over 7 days and their association with periodontal parameters. Methods One hundred adult patients attending a periodontal examination…
View details →Durgin FH, Love A, Taylor G et al. · 2026 · Journal of experimental psychology. Human perception and performance
To dissociate density-based and number-based explanations of the aftereffects affecting visually perceived numerosity, a preregistered psychophysical experiment was conducted with 60 participants. The experiment was designed to address a…
View details →Martini JD, Xavier de Araujo F, Teixeira C · 2026 · Respiratory care
Background We sought to evaluate the prevalence and factors associated with diaphragmatic dysfunction using bedside ultrasound in critically ill subjects undergoing invasive mechanical ventilation in pressure-support ventilation (PSV)…
View details →Song CH, Chang YC · 2026 · Acta paediatrica (Oslo, Norway : 1992)
Aim To investigate baseline pneumococcal antibody levels and the influence of allergic sensitization in children under age six with recurrent respiratory infections. Methods We conducted a retrospective analysis of 38 fully immunised…
View details →Gathof A, Jahaj L, Patalano S et al. · 2025 · ACS omega
The concentrations of organophosphate esters (OPEs) in atmospheric particulate matter (PM) collected every 6 days at two sites across Providence, Rhode Island (Providence College, PC, and the Port of Providence, Port) are reported for the…
View details →Kumari S, Marwah S, Manna S et al. · 2026 · Cureus
Background Combined oral contraceptives (COCs) are the cornerstone therapy for polycystic ovary syndrome (PCOS). While COCs have been shown to improve cognitive performance, the relationship between these gains and hormonal profiles,…
View details →Ibrahim A, Albarhawi A, Saadi A · 2026 · Georgian medical news
Background Thyroid disorders, hypothyroidism or hyperthyroidism, are frequently encountered in medical practice. Estimating the significance of MPV as an indicator of thrombotic propensity in hypothyroidism would be helpful and looking for…
View details →Stojković B, Igić M, Jevtović Stoimenov T et al. · 2026 · Diagnostics (Basel, Switzerland)
Background/Objectives : This exploratory study aimed to investigate potential differences and associations between salivary hBD-2 levels and dental caries, as well as between unstimulated salivary pH and salivary hBD-2 levels, in children…
View details →Fereydouni S, Jabbari-Azad F, Bakhshaee M et al. · 2026 · Iranian journal of otorhinolaryngology
Introduction Chronic rhinosinusitis with nasal polyps is a heterogeneous inflammatory disorder often driven by type 2 inflammation. Identification of non-invasive biomarkers, such as fractional exhaled nitric oxide (FeNO), may support the…
View details →Petrey K, Golden A, Durbin J et al. · 2026 · European journal of pain (London, England)
Background The primary objective of this study was to determine whether baseline conditioned pain modulation (CPM) is associated with pain and disability outcomes following a 6-week course of physical therapy intervention. Secondary…
View details →Wrobel J, Jablonska E, Matuk K et al. · 2026 · Life (Basel, Switzerland)
Background The aim of the study was to investigate whether red blood cell antigens (A, B, D, C w , C, c, E, e, K, k, Jk a , Jk b , Fy a , Fy b , Le a , Le b , M, N, S, s, and P1) from clinically relevant blood group systems were associated…
View details →Deniz-Şafak E, Adlım B · 2026 · BMC primary care
Objective As future healthcare providers, medical students play a critical role in the prevention, early recognition, and management of substance use disorders. However, the extent to which they are adequately prepared for this…
View details →Patel A, Meena DS, Santhosh K et al. · 2026 · Journal of neuroimmunology
Background Neurocognitive dysfunction remains an important complication among people living with HIV (PLWH). Early identification of neurocognitive dysfunction by using the International HIV Dementia Scale (IHDS) may help in the prevention…
View details →Yasuda H, Yokota K, Katabami T et al. · 2026 · Hypertension research : official journal of the Japanese Society of Hypertension
Primary aldosteronism (PA) causes biochemical abnormalities such as hypokalemia and metabolic alkalosis. This study aimed to compare the effects of aldosterone on serum potassium and corrected bicarbonate (cHCO 3 - , defined as Na - Cl -…
View details →Alotaibi W, Alrasheed S · 2026 · JPMA. The Journal of the Pakistan Medical Association
Objective To evaluate axial length, anterior chamber angle, anterior chamber depth, refractive errors and white-to-white corneal diameter, and to assess their inter-correlations with intraocular pressure among young individuals. Methods…
View details →Hsieh YT, Liao YC, Dulnuan HGP et al. · 2026 · Brain structure & function
Men typically display larger olfactory bulb (OB) volumes, while women demonstrate superior olfactory performance. Olfactory training (OT) has been shown to induce structural changes in OB, but whether sex influences OT-related plasticity…
View details →Baharnoori M, Glanz B, Polgar-Turcsanyi M et al. · 2026 · Journal of the neurological sciences
Background Serum neurofilament light chain (sNfL) and glial fibrillary acidic protein (sGFAP) are promising biomarkers for Multiple Sclerosis (MS) disease activity. There is less known about their association with the symptomatic…
View details →Alhosseini R, Aghaie M, Ghorbani S et al. · 2026 · BMC research notes
BACKGROUND: Osteoporosis is a common bone disorder characterized by decreased bone density. Interleukin-6 (IL-6), plays a crucial role in bone homeostasis. This study aimed to evaluate the relationship between serum levels of IL-6 and…
View details →Etemadifar M, Bagheri S, Dehghani A et al. · 2026 · Multiple sclerosis and related disorders
Background Multiple sclerosis (MS) prevalence varies worldwide and appears to be rising in Iran. Environmental factors like air pollution have been hypothesized to contribute to MS risk. This study aimed to map MS prevalence across Isfahan…
View details →Lan P, Lan T · 2026 · Metabolic syndrome and related disorders
Background Hyperlipidemia constitutes a systemic metabolic disorder. The correlation of cardiovascular disease [CVD] with the triglyceride-glucose index [TyG] in individuals with hyperlipidemia remains unclear. The current study examined…
View details →Gahukamble A, Arikrishnan AM, Thuppale VE et al. · 2026 · Journal of pediatric orthopedics
Background Distal femoral extension osteotomy (DFEO) is an established surgical option for correcting knee flexion deformity (KFD) in children with cerebral palsy. However, the extension deformity created at the distal femur may remodel…
View details →Almukhlifi Y, Alharbi A, Alghamdi L et al. · 2026 · Scientific reports
Emergency Medical Services (EMS) trainees are exposed to multiple occupational hazards during their training; however, the extent to which their awareness translates into safe professional behaviours remains unclear. This study aimed to…
View details →Sharma A, Nateghi R, Ayad M et al. · 2026 · Placenta
Introduction The placenta forms a critical barrier to infection through pregnancy, labor and, delivery. Acute placental inflammation in the membranes, diagnosed as Maternal Inflammatory Response (MIR), has short-term, and long-term…
View details →Bandola AM, Wang MH, Guo BF et al. · 2026 · Marine pollution bulletin
Phthalate esters (PAEs) and microplastics (MPs) are emerging contaminants in aquatic environments. However, their co-occurrence in wetland sediments remains poorly understood. This study aimed to quantify PAE concentrations and MP…
View details →Yokoyama S, Shimada M, Nakagawa J et al. · 2026 · European journal of drug metabolism and pharmacokinetics
Background and objective Vadadustat, an oral hypoxia-inducible factor prolyl hydroxylase inhibitor, is transported into hepatocytes via OATP1B1, which is encoded by the SLCO1B1 gene. Although interindividual variability in vadadustat…
View details →Chen Y, Ren Z, Yan J et al. · 2026 · Urology
Objective To elucidate the association of endogenous circulating testosterone and its related substances with the onset and severity of stress urinary incontinence (SUI) in postmenopausal women. Patients and methods A comparative analysis…
View details →Sayur V, Uc C, Baki B et al. · 2026 · Hernia : the journal of hernias and abdominal wall surgery
Background and aim With the increasing use of digital platforms in surgical education, YouTube has become a widely accessible resource for trainees. However, the absence of peer review raises concerns regarding the reliability and…
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