Negative / Null Result ReportMedicine
Brown KA, Max LNF, Struble SE et al. · 2026 · American journal of veterinary research
Objective Determine the acute effects of xylazine and detomidine on concentrations of selected growth factors, cytokines, and α2-macroglobulin (A2M) in platelet-rich plasma (PRP) and autologous protein solution (APS) and the long-term…
View details →Negative / Null Result ReportMedicine
Calder AE, Diehl VJ, Lietz MP et al. · 2026 · Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology
Preclinical studies suggest that lysergic acid diethylamide (LSD) may induce lasting changes in brain function and learning ability, but evidence in humans is uncertain. Motor learning, in particular, has clinical relevance but has not…
View details →Failed Experiment ReportMedicine
Strandberg E, Vikmoen O, Svindland KV et al. · 2026 · European journal of sport science
To evaluate whether strength training during chemotherapy alters (1) serum cytokines and (2) skeletal muscle autophagy- and heat-shock-related proteins in women with breast cancer. Exploratory analyses assessed associations between changes…
View details →Failed Experiment ReportMedicine
García-Mendoza A, González-Hernández M, Vega-Manriquez DX et al. · 2026 · Veterinary sciences
This study investigated the associations among dam lactation number, passive immunity transfer, internal parasite burden, and weaning performance in female calves. Early consumption of high-quality colostrum is critical for effective…
View details →Negative / Null Result ReportMedicine
Enciso-Pablo Ó, Sierra-Ramírez F, Sotres-Bayon F · 2026 · Psychopharmacology
Rationale Benzodiazepines are widely used to treat anxiety; however, their influence on defensive behavior when threats compete with rewards remains unclear. Objectives Here, we tested the effects of diazepam on reactive avoidance (no…
View details →Methods Dead-EndMedicine
Jiang Y, Zanganeh M, Waugh N et al. · 2026 · Gastrointestinal endoscopy
Background and aims Endoscopy units are increasingly being encouraged to consider replacing multiple-use (MU) endoscopes with single-use (SU) endoscopes, largely due to reduction in cross-infection. While evidence suggests comparable…
View details →Negative / Null Result ReportMedicine
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 →Negative / Null Result ReportMedicine
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 →Negative / Null Result ReportMedicine
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 →Negative / Null Result ReportMedicine
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 →Negative / Null Result ReportMedicine
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 →Negative / Null Result ReportMedicine
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 →Negative / Null Result ReportMedicine
Plouhinec L, Maresca M, Saget J et al. · 2026 · Applied microbiology and biotechnology
As demand for sustainable and welfare-conscious food production increases, reducing the environmental and health impacts of animal feed has become a key challenge. Soybean meal (SBM) is widely used in poultry diets for its high protein…
View details →Negative / Null Result ReportMedicine
Ki SY, Jeong YT · 2026 · Biochemical and biophysical research communications
Peripheral sensory nerve injury triggers Wallerian degeneration, a process characterized by axonal fragmentation, myelin breakdown, and robust macrophage infiltration. While macrophages are widely implicated in debris clearance and repair…
View details →Negative / Null Result ReportMedicine
Schmid JA, Hogue M, Aguilar-Cardoza J et al. · 2026 · Environmental toxicology and chemistry
Agricultural run-off is one of the leading sources of environmental pollution in the United States. Insecticides and neonicotinoids have become the most used insecticide class across the world and act as an agonist on the nicotinic…
View details →Negative / Null Result ReportMedicine
Saiz-Gonzalo G, Drouin G, Rao Y et al. · 2026 · Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association
Non-nutritive sweeteners (NNS) are increasingly consumed during pregnancy, yet their distinct metabolic fates obscure a unified mechanism for developmental programming. We tested whether maternal NNS exposure acts upstream of metabolism by…
View details →Negative / Null Result ReportMedicine
Magsi FH, Ullah A, Ma Y et al. · 2026 · Journal of chemical ecology
Fall armyworm (Spodoptera frugiperda) has emerged as a major pest of maize across the Americas, Africa and Asia. Current management relies heavily on synthetic insecticides, which are environmentally unsustainable. However, pheromone-based…
View details →Negative / Null Result ReportMedicine
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 →Replication FailureMedicine
Sawatpanich T, Innoi S, Chaiyamoon A et al. · 2026 · Life (Basel, Switzerland)
Morus alba L. fruit extract (MFE), which is rich in cyanidin 3-glucoside (C3G), demonstrates antioxidant properties and pharmacological effects, but its reproductive safety remains poorly understood. Polyphenols modulate steroidogenesis,…
View details →Replication FailureMedicine
Jeremic M, Jovanovic-Tucovic M, Martinovic T et al. · 2026 · Neurotoxicology
The mechanistic target of rapamycin complex 2 (mTORC2), a key regulator of cellular metabolism, growth, and survival, remains poorly characterized in the context of dopaminergic neurotoxicity. In this study, we investigated the role of…
View details →Replication FailureMedicine
Abdelmenam DS, Elshahawy WM, Ahmed RK · 2026 · Odontology
This study aimed to assess the effect of incorporating sodium fluoride (NaF) into an adhesive system on the microtensile bond strength of ceramic occlusal veneers. Eighty resin-dentin sticks (~ 1 mm 2 ) were obtained from 20 upper first…
View details →Negative / Null Result ReportMedicine
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 →Negative / Null Result ReportMedicine
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 →Negative / Null Result ReportMedicine
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 →Negative / Null Result ReportOpen accessMedicine
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 →Negative / Null Result ReportOpen accessMedicine
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 →Negative / Null Result ReportMedicine
Chen B, Wang Q, Xue X et al. · 2026 · NPJ biofilms and microbiomes
Autism spectrum disorder (ASD) is a complex neurodevelopmental condition arising from interactions between genetic and environmental factors. The interplay between the microbiota-gut-brain axis and epigenetics has been implicated in ASD,…
View details →Negative / Null Result ReportMedicine
Takeuchi H, Akiba Y, Van Quang N et al. · 2026 · Journal of prosthodontic research
Purpose Osseointegration begins at the initial blood-implant contact; however, titanium-adhesive blood proteins remain incompletely defined. We used a structure-free, nano-smooth titanium substrate (Ra ≈ 0.6 nm) to identify…
View details →Negative / Null Result ReportMedicine
Riancho-Zarrabeitia L, Barrena OI, Santos-Gomez M et al. · 2026 · Reumatologia clinica
Background/objectives Systemic lupus erythematosus (SLE) is a heterogeneous autoimmune disease marked by diverse autoantibodies. While serological clusters have been associated with distinct clinical phenotypes, most existing studies rely…
View details →Negative / Null Result ReportMedicine
Bonthrone AF, Cromb D, Javed SA et al. · 2026 · Placenta
Objectives To assess if maternal stress is higher in pregnancies with congenital heart disease (CHD) compared to low-risk pregnancies and if maternal stress is associated with placental microstructure and function. To explore if CHD alters…
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