11,416 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.
Liang J, Pillai T, Chopra S et al. · 2025 · Aesthetic surgery journal
Background Utilization of glucagon-like peptide-1 receptor agonists (GLP-1ras) has increased dramatically in recent years. Although GLP-1ras appear safe to use overall, it remains unclear whether preoperative GLP-1ra use impacts body…
View details →Jourde HR, Ujevco A, Coffey EBJ · 2025 · NeuroImage
Slow oscillations and sleep spindles are neural events that both occur during non-rapid eye movement sleep and are implicated in sleep-dependent memory consolidation. Their temporal co-occurrence, or 'coupling', is thought to support…
View details →Aumtong S, Soongsoongnoen P, Wanwinit D · 2026 · Scientific reports
Biochar reshapes soil composition for years, yet most evidence comes from short-term, single-element laboratory incubations, leaving multi-element dynamics in tropical soils poorly resolved. We tracked 11 elements in longan-wood biochar…
View details →Heled E, Himai Y, Papelbaum M et al. · 2026 · Journal of psychiatric research
Impaired cognitive flexibility (CF) and elevated perfectionism are well-documented in anorexia nervosa (AN), yet their contribution to symptom severity remains unclear. The current study aimed to examine whether CF predicts symptom…
View details →Pirbornatan A, Chalmeh A, Pourjafar M et al. · 2026 · Veterinary journal (London, England : 1997)
Periparturient immunometabolic adaptations yield small, node-dependent shifts in endotoxin proxies and insulin-sensitivity indices. Direct-fed microbials (DFM) are mechanistically plausible but often produce modest metabolic readouts. Test…
View details →Hura A, Green T, Kennedy C · 2026 · Archives of environmental contamination and toxicology
With increasing petroleum transport through coastal waters of the northeastern Pacific, understanding the ecological hazards of these mixtures is essential, yet the sublethal impacts on benthic filter feeders remain poorly characterized.…
View details →Jorgensen E, Modahl L, Noll A et al. · 2026 · The Journal of the Acoustical Society of America
This study investigated how hearing loss and hearing aid use affect environmental sound ratings in laboratory and real-world contexts using the soundscape framework. Forty-four participants (17 normal hearing, 14 with unaided hearing loss,…
View details →Parrish BP, McCool BA · 2026 · Neuropharmacology
Acute ethanol modulates an incredibly diverse number of neurotransmitter receptors and intracellular pathways. Presynaptic modulation by acute ethanol has been identified at some GABAergic synapses; but descriptions of acute ethanol…
View details →Abrahams M, Bunting BP, Frewer LJ et al. · 2026 · Food & function
Although personalised nutrition is more effective than generic approaches to dietary health promotion, effect sizes tend to be small. Behaviour change theory implies the importance of goal setting to successful health intervention. This…
View details →Ben-Zeev T, Levi C, Ratamess NA et al. · 2026 · Hormones and behavior
This study examined the effects of resistance training (RT) and supraphysiological nandrolone decanoate (ND) administration on hippocampal neurogenesis, neurotrophic signaling, and behavior. Forty 3-month-old male C57BL/6 J mice were…
View details →Ceccatto Andrade VP, Araujo Júnior E, Callado GY et al. · 2026 · European journal of obstetrics, gynecology, and reproductive biology
Objective The transdermal administration of testosterone is a promising alternative to improve sexual health in postmenopausal women with decreased sexual desire, although its use remains off-label in Brazil and several other countries.…
View details →Miftakhov R, Fortygina P, Zuzina A et al. · 2026 · Scientific reports
Astrocytes communicate bidirectionally with neurons by releasing various signaling molecules. This astrocyte-neuron "dialogue" is essential for long-term processes in the nervous system, and its disruption correlates with various…
View details →Wu J, Li G, Pen J et al. · 2026 · Journal of environmental management
Saline-alkali grassland ecosystems are essential methane (CH 4 ) sinks, playing a significant role in global CH 4 budgets. However, our understanding of the CH 4 uptake potential in saline-alkali grasslands and its response to climate…
View details →Fang YJ, Gonzalez K, Konecny F et al. · 2026 · American journal of physiology. Heart and circulatory physiology
Maternal exercise may influence long-term cardiovascular health in offspring, yet its effects on intrinsic myocardial performance and mitochondrial metabolism remain incompletely defined. We investigated whether maternal voluntary wheel…
View details →Rajhansa S, Crump NT, Khoo HM et al. · 2026 · Experimental hematology
A major challenge in cancer therapeutics has been the identification of targets that are selectively toxic to cancer cells while displaying limited effects on healthy counterparts. Toxicities related to blood production from hematopoietic…
View details →Hajj-Boutros G, Faust A, Mastrandrea C et al. · 2026 · Experimental physiology
Bed rest accelerates bone loss and may exacerbate skeletal fragility. This study examined the effects of 14 days of head-down tilt bed rest (HDBR) with or without exercise, and subsequent recovery, on bone turnover, density and structure…
View details →Cuadro R, Borrajo CI, Marino MA et al. · 2026 · European Journal of Agronomy.
Nitrogen (N) and phosphorus (P) deficiencies commonly limit plant growth in agroecosystems. While critical N concentration (Nc) dilution curves are widely used to assess the N status of crops and pastures, it remains unclear whether Nc…
View details →Zhao Y, Ma Y, Fan Y et al. · 2023 · Lung cancer (Amsterdam, Netherlands)
Purpose This study aimed to evaluate the efficacy and safety of cadonilimab (anti PD-1 and CTLA-4 bispecific antibody) in patients with previously treated metastatic non-small-cell lung cancer (NSCLC). Methods In this multicenter,…
View details →Karavia EA, Pittaras A, Andreopoulou O et al. · 2026 · Pharmaceuticals (Basel, Switzerland)
Background/Objectives: Non-alcoholic fatty liver disease (NAFLD), recently redefined as metabolic dysfunction-associated steatotic liver disease (MASLD), represents a growing global health burden closely linked to obesity, insulin…
View details →Limon D, Bokstein F, Blumenthal DT et al. · 2026 · Neuro-oncology advances
Background Tumor-treating fields (TTFields) have demonstrated efficacy in newly diagnosed glioblastoma (ndGBM) when combined with adjuvant temozolomide (TMZ). Preclinical studies suggest that TTFields enhance the therapeutic effect of…
View details →Giri S, Wang X · 2026 · American journal of physiology. Heart and circulatory physiology
Neointimal hyperplasia (NH) is a prominent pathological consequence following vascular injury and is driven in part by aberrant vascular smooth muscle cell (VSMC) proliferation. COP9 signalosome (CSN) subunit 5 (CSN5/JAB1/COPS5) is the…
View details →de Sousa Fernandes MS, Kanashiro A, da Silva Fidélis DE et al. · 2026 · Scientific reports
Environmental enrichment (EE), an experimental paradigm promoting cognitive, sensory, social, and motor stimulation, has been associated with neuroprotective effects. Although EE modulates immune function, its influence on the basal redox…
View details →Ling L, Ali T, Li X et al. · 2026 · Neurochemistry international
Diabetic neuropathy (DN) is driven by neuroinflammation and oxidative stress, with c-Jun N-terminal kinase (JNK) as a key mediator; however, the effects of JNK inhibition on neuropathic pain remain unclear. Therefore, we investigated the…
View details →Wu Z, Menezes ES, Silva NMLE et al. · 2026 · Genes
Background/Objectives : MicroRNAs (miRNAs) are key regulators of skeletal muscle adaptation; however, the extent to which exercise modulates the miRNA biogenesis pathway remains poorly understood. To investigate the impact of acute and…
View details →Butcko AJ, Adeshina KA, Kamali P et al. · 2026 · Scientific reports
PNPLA3-I148M, the greatest genetic determinant for metabolic dysfunction-associated steatotic liver disease (MASLD), paradoxically associates with reduced cardiovascular disease (CVD); however, the mechanisms are poorly understood. To…
View details →Chatzivasileiou K, Kamalakidis SN, Pissiotis AL et al. · 2026 · The International journal of prosthodontics
Purpose To evaluate the combined effect of different polishing protocols and different denture cleansers on the surface roughness of three heat-polymerized polymethyl methacrylate (PMMA) denture base materials. Materials and methods The…
View details →Gu R, Qin FY, Sun Z et al. · 2026 · Toxicological sciences : an official journal of the Society of Toxicology
Deficiency of ferrochelatase (FECH) in erythropoietic protoporphyria (EPP) leads to accumulation of its substrate, protoporphyrin IX (PPIX), the final intermediate in the heme biosynthesis pathway. PPIX is produced primarily in the bone…
View details →Gasper K, Haynes E · 2026 · Cognition & emotion
Positive feelings may diminish. It is unclear whether this decrease stems from people feeling less positive, more negative, more neutral, or some combination. Using an evaluative conditioning (EC) paradigm, we investigated how pre-existing…
View details →Duque-Estrada P, Markussen B, Schutyser M et al. · 2026 · Food chemistry
Thermal treatment can improve plant protein digestibility by inactivating antinutrients and partially denaturing proteins, but depending on the conditions applied, heating may also promote aggregation and amino acid modifications that…
View details →Kagota S, Maruyama-Fumoto K, Niki A et al. · 2026 · Metabolic syndrome and related disorders
Background Perivascular adipose tissue (PVAT), found outside blood vessels, enhances vasorelaxation when endothelium-mediated vasorelaxation fails, as observed in the mesenteric arteries of rats with metabolic syndrome (MetS) and…
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