11,314 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.
Kreko-Pierce T, Chen L, Qu G et al. · 2026 · Membranes
HIV-associated neurocognitive disorders (HAND) persist despite combination antiretroviral therapy (cART) and can be exacerbated by repeated cocaine (COC) exposure. Because COC, HAND, and cART independently disrupt medial prefrontal cortex…
View details →Krittaphol W, Martin LW, Walker GF et al. · 2025 · Pathogens (Basel, Switzerland)
Chronic infections of Pseudomonas aeruginosa are commonly treated with tobramycin. During infections, the bacteria can exist under conditions of oxygen deprivation that render them less susceptible to this antibiotic. The aims of this…
View details →Newman MS, Smeaton J · 2025 · Menopause (New York, N.Y.)
Objectives 3,3'-diindolylmethane (DIM) is a supplement, investigational drug, and the primary in vivo product of indole-3-carbinol. DIM is sometimes recommended to postmenopausal women by functional or integrative medicine providers. Some…
View details →Vega-Trejo R, Sanghvi K, Todorova B et al. · 2024 · Scientific reports
Mate availability and social information can influence mating behaviour in both males and females. Social information obtained from conspecifics can influence mate choice, particularly shown by studies on mate choice copying. However, the…
View details →Hemmingsen MG, Zhang GF, Ma Y et al. · 2025 · JCI insight
Methylmalonic acidemia (MMA) is a severe metabolic disorder affecting multiple organs because of a distal block in branched-chain amino acid (BCAA) catabolism. Standard of care is limited to protein restriction and supportive care during…
View details →Rolig AS, Ziglari T, McGee GH et al. · 2026 · Scientific reports
The tumor microenvironment (TME), which heavily influences immune checkpoint blockade (ICB) efficacy, is shaped by host-microbe interactions. Endogenous intratumoral bacteria have been implicated in efficacy of ICB, such as anti-PD-1…
View details →Hauber MM, Nordahl O, Todisco V et al. · 2026 · PloS one
Many coregonine species have declined drastically across the Northern Hemisphere, including populations of Coregonus maraena (whitefish) in the Baltic Sea, and the mechanisms leading to these declines are not well investigated. An abrupt…
View details →Marquis-Gravel G, Tong G, Dodd M et al. · 2025 · Journal of the Society for Cardiovascular Angiography & Interventions
Background Coronary artery bypass grafting (CABG) improves survival compared with optimal medical therapy (OMT) alone in patients with ischemic left ventricular systolic dysfunction (iLVSD), but percutaneous coronary intervention (PCI) did…
View details →Shahid N, Kim CH, Jabilona KB et al. · 2026 · PloS one
Tyrosine kinase inhibitors (TKI) are often used in combination with other chemotherapeutic nucleoside/nucleobase analogues, such as gemcitabine and 6-mercaptopurine, in the treatment of various cancers. Past studies have shown that several…
View details →Lubineau M, Watkins CP, Glasel H et al. · 2023 · Proceedings. Biological sciences
Does word flickering facilitate reading? Despite a lack of scientific evidence, flickering glasses and lamps for dyslexia are being marketed in various countries. We conducted four experiments to assess their efficacy. Two experiments…
View details →Salerno JW, Xu S, Rainforth M et al. · 2026 · Medicina (Kaunas, Lithuania)
Background and Objectives : Cardiovascular disease (CVD) is the leading cause of death globally. The World Health Organization has called for investigations into traditional systems of medicine for CVD prevention. Ayurveda includes a…
View details →Stark R, Zigman JM, Andrews ZB · 2025 · Journal of neuroendocrinology
The olfactory bulb (OB) is an emerging neuroendocrine centre regulating appetite, metabolism, and behaviours such as those linked to anxiety, motivation and spatial navigation. These processes are likely mediated by one or more of the many…
View details →Liu S, Hu S, Chen J et al. · 2025 · Psychological research
Previous research has shown that the addition of happy or angry expressions to other-race faces can assist infants in overcoming the perceptual narrowing of face race and reinstating their recognition of other-race faces. In the present…
View details →Draper B, Wand APF · 2025 · Current opinion in psychiatry
Purpose of review Depression and physical illnesses have long been recognized as risk factors for suicidal behaviour in late life. Qualitative studies have previously identified frailty as being an issue in late life suicidal behaviour,…
View details →Beirowski B, Huang H, Babetto E · 2026 · eLife
Axon degeneration (AxD), accompanied by glial remodeling, is a pathological hallmark of many neurodegenerative diseases, leading to the disruption of neuronal connectivity. Understanding the mechanisms in neurons and glia that regulate AxD…
View details →Levin ME, Mukasa MN, Bowers EM et al. · 2025 · Behavioral sciences (Basel, Switzerland)
Adherence challenges are common among digital mental health interventions (DMHIs). Single-session DMHIs may help by providing a low-intensity intervention that takes less time to complete. This pilot randomized controlled trial sought to…
View details →Lunde P, Finbråten HS, Pripp AH et al. · 2025 · International journal of cardiology. Cardiovascular risk and prevention
Background and aims Adherence to treatment is a significant challenge for patients with cardiac disease. Optimizing health literacy (HL) is essential in this context. Mobile health (mHealth) interventions have been suggested to improve…
View details →Ferro M, Cilla S, Macchia G et al. · 2026 · Cancer reports (Hoboken, N.J.)
Background This study investigates the impact of radiotherapy (RT) on fatigue levels in prostate cancer (PC) patients, considering the significant physical and psychological impact of fatigue associated with cancer and its treatments.…
View details →Sieborg J, Maul JT, Wu JJ et al. · 2025 · Acta dermato-venereologica
Biosimilars are designed to be analogous to the biologic originators. However, comprehensive comparisons between biosimilars are limited and lacking for patients with psoriasis. This study's objective was to compare 1-year drug survival of…
View details →Hossain SJ, Tofail F, Mehrin SF et al. · 2023 · Pediatrics
Background and objectives Previously, in 30 Bangladeshi villages, 2 groups of children with iron-deficiency anemia (IDA) and nonanemic (NA) iron sufficiency aged 6 to 24 months participated in 2 parallel cluster randomized controlled…
View details →Bingöl G, Jesurasa S, Stroethoff M et al. · 2025 · Frontiers in cardiovascular medicine
Remote ischemic preconditioning (RIPC) has been shown in several experimental studies as an organ protective procedure against ischemic injury, but the implementation of RIPC into routine clinical practice has so far failed due to…
View details →Mayer L, Lichtblau M, Furian M et al. · 2025 · Journal of the American Heart Association
Background Exposure to high altitude triggers hypoxic pulmonary vasoconstriction with a rise in pulmonary artery pressure (PAP). This may lead to symptomatic pulmonary hypertension with impaired right heart function and exercise capacity.…
View details →López-de la Rosa A, Díez-Montero C, Martínez-Plaza E et al. · 2024 · Ophthalmology and therapy
Introduction Characterizing lens thickness (LT) in patients with cataracts is important for better understanding the lens aging process and for designing new intraocular lens power formulas. This study aimed to analyze the influence of…
View details →Fitzgerald LS, Reynoso Spurrier CS, Lau NJ et al. · 2025 · American journal of physiology. Endocrinology and metabolism
Mitochondria are key regulators of metabolism and ATP supply in skeletal muscle, while circadian rhythms influence many physiological processes. However, whether mitochondrial function is intrinsically regulated in a circadian manner in…
View details →Fernández-Ruiz M, Sánchez Moreno B, Santiago Almeda J et al. · 2023 · Transplant infectious disease : an official journal of the Transplantation Society
Previous studies have suggested that exposure to statins confers a protective effect in bloodstream infection (BSI) due to the anti-inflammatory and immunomodulatory properties attributed to these lipid-lowering drugs. Scarce evidence is…
View details →Vilk Ayalon N, Omer Vilk N, Sompolinsky Y et al. · 2026 · Reproductive health
BACKGROUND: Frozen embryo transfer (FET) is widely used due to its safety and effectiveness. However, it has been associated with an increased risk of large for gestational age (LGA) infants. Proposed mechanisms include effects of embryo…
View details →Agudelo LR, Yarmush G, Kumar S et al. · 2025 · Biology
Accelerating healing is a clinical goal in both acute and chronic non-healing skin wounds. We leveraged the public Recon database, which seeks to aggregate all of the metabolic pathways in the human body, to uncover whether increasing the…
View details →Sandoval-Alarcón S, Bäumle R, Castellucci HI · 2025 · Applied ergonomics
Dentists face various occupational demands that heighten their risk of developing work-related musculoskeletal disorders (WMSDs), including prolonged static postures, repetitive movements, unsuitable dental instruments, extended work…
View details →Warren WG, Papagianni EP, Hale E et al. · 2022 · Frontiers in pharmacology
Endocannabinoid transmission is emerging as a target for treating anxiety-related disorders, given its regulation of fear extinction. Boosting anandamide levels via inhibition of its metabolism by fatty acid amide hydrolase (FAAH) can…
View details →Khalid E, Vijayan MM · 2025 · Frontiers in endocrinology
Introduction Although the Crh-Crhr1 system is the proximal trigger for the stressor-induced corticosteroid release, its role in initiating the fight-or-flight response to an acute stressor is unclear. We hypothesized that the Crh-Crhr1…
View details →