Replication FailureOpen accessMedicine
Julien Vionnet, Jorge P. Torres-Yaguana, Rosa Miquel et al. · 2024 · American Journal of Transplantation
The maintenance of stable allograft status in the absence of immunosuppression (IS), known as operational tolerance, can be achieved in a small proportion of liver transplant recipients, but we lack reliable tools to predict its spontaneous development. We conducted a prospective, multicenter, biomarker-strategy design, IS withdrawal clinical trial to determine the utility of a predictive biomarker of operational tolerance. The biomarker test, originally identified in a patient cohort with high operational tolerance prevalence, consisted of a 5-gene transcriptional signature measured in liver
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Fatemeh Mohammadyari, Amirreza Aflak, Mahta ZareDini et al. · 2025 · Frontiers in Medicine
Background: Gastrointestinal bleeding (GIB), which includes both upper GIB (variceal and non-variceal) and lower GIB, represents a significant cause of emergency department referrals. Main body: Given the potential risks of blood transfusion, re-bleeding, and mortality in these patients, it is essential to establish a system for prioritizing critical patients. Several risk stratification scoring systems have been developed based on patients' clinical characteristics and/or endoscopic findings. However, the optimal scoring system for each clinical scenario remains uncertain. Conclusion: In this
View details →Negative / Null Result ReportOpen accessMedicine
Judith Charbit, Jean‐Sébastien Vidal, Olivier Hanon · 2025 · Nutrients
Cognitive aging is a complex, multifactorial process influenced by genetic, metabolic, and environmental factors. Among modifiable risk factors, nutrition has emerged as a promising target to preserve cognitive function. This review provides a comprehensive overview of the impact of dietary interventions-including specific nutrients and dietary patterns-on cognitive domains (memory, executive function, global cognition) and mental health. Recent findings: multinutrient supplementation, particularly combinations of B vitamins and omega-3 fatty acids, appears beneficial for episodic memory, espe
View details →Negative / Null Result ReportOpen accessMedicine
Xuanyu Qi, Guangzheng YANG, Zeqian Xu et al. · 2026 · Bone Research
Abstract Nociceptive pain is a cardinal feature of traumatic and inflammatory bone diseases. However, whether and how nociceptors actively regulate the immune response during bone regeneration remains unclear. Here, we found that neutrophil-triggered nociceptive ingrowth functioned as negative feedback regulation to inflammation during bone healing. A unique Il4ra + Ccl2 high neutrophil subset drove intense postinjury TRPV1 + nociceptive ingrowth, which in return dissipated inflammation by activating the production of pro-resolving mediator lipoxin A4 (LXA4) in osteoblasts. Mechanistically, os
View details →Negative / Null Result ReportOpen accessMedicine
Jason E. Pope, Ajay Antony, Erika Petersen et al. · 2024 · Pain and Therapy
INTRODUCTION: Drawbacks of fixed-output spinal cord stimulation (SCS) screening trials may lead to compromised trial outcomes and poor predictability of long-term success. Evoked compound action potential (ECAP) dose-controlled closed-loop…
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Ewelina Młynarska, Wiktoria Lisińska, Katarzyna Hossa et al. · 2025 · Pharmaceuticals
Vitamin D, long recognized for its essential role in calcium-phosphate balance and bone health, has increasingly been identified as a pleiotropic regulator of metabolic, cardiovascular, and renal function. Deficiency of vitamin D is widespread worldwide and has been linked to a higher risk of insulin resistance, type 2 diabetes, atherosclerosis, hypertension, and chronic kidney disease. Meta-analyses suggest that each 10 nmol/L (≈4 ng/mL) increase in serum 25-hydroxyvitamin D [25(OH)D] is associated with about a 4% lower risk of type 2 diabetes, whereas other analyses indicate an approximately
View details →Negative / Null Result ReportMedicine
Wen Sun, Pan Zhang, Miaomiao Hu et al. · 2025 · Radiology
= .39). Conclusion In patients with VBAO admitted with an NIHSS score of 10 or less, early EVT (DPT ≤ 120 minutes) combined with BMM outperformed BMM alone, whereas late EVT (DPT > 120 minutes) combined with BMM did not outperform BMM…
View details →Replication FailureOpen accessMedicine
Kang Wang, Jinkai Feng, Hongming Yu et al. · 2025 · Signal Transduction and Targeted Therapy
Transarterial chemoembolization (TACE) is the standard treatment for intermediate-stage hepatocellular carcinoma (HCC), yet its efficacy as a standalone therapy remains suboptimal. This phase 2 trial (ChiCTR2100049829) evaluated the feasibility and safety of TACE combined with atezolizumab and bevacizumab in patients with intermediate-stage HCC. Participants received TACE followed by atezolizumab and bevacizumab until disease progression, unacceptable toxicity, or death. The primary endpoint was objective response rate (ORR) assessed per Response Evaluation Criteria in Solid Tumors (RECIST) v1
View details →Negative / Null Result ReportOpen accessMedicine
Steven D. Nathan, Victoria Lacasse, Heidi Bell et al. · 2024 · Pulmonary Circulation
The PERFECT study, a randomized, controlled, double-blind study of inhaled treprostinil in patients with COPD and associated pulmonary hypertension (PH-COPD) was a negative trial that was terminated early. The reason(s) for the negative…
View details →Negative / Null Result ReportOpen accessMedicine
Iñaki Eguren‐Santamaría, Ignacio Melero, Inmaculada Rodríguez et al. · 2025 · Journal for ImmunoTherapy of Cancer
Almost every successful anticancer treatment has been preceded by preclinical scientific breakthroughs that encouraged clinical development. However, therapeutic strategies showing promising preclinical results often fail to confirm…
View details →Negative / Null Result ReportOpen accessMedicine
Tara L. Alvarez, Mitchell Scheiman, Farzin Hajebrahimi et al. · 2025 · British Journal of Sports Medicine
OBJECTIVE: The CONCUSS randomised clinical trial compared the effectiveness of immediate office-based vergence/accommodative therapy with movement (OBVAM) to delayed therapy for the treatment of concussion-related convergence insufficiency…
View details →Negative / Null Result ReportOpen accessMedicine
Malte L Schmieding, Marvin Kopka, Myrto Bolanaki et al. · 2025 · Journal of Medical Internet Research
BACKGROUND: Symptom checker apps (SCAs) are layperson-facing tools that advise on whether and where to seek care, or possible diagnoses. Previous research has primarily focused on evaluating the accuracy, safety, and usability of their recommendations. However, studies examining SCAs' impact on clinical care, including the patient-physician interaction and satisfaction with care, remain scarce. OBJECTIVE: This study aims to evaluate the effects of an SCA on satisfaction with the patient-physician interaction in acute care settings. Additionally, we examined its influence on patients' anxiety a
View details →Negative / Null Result ReportOpen accessMedicine
Robin Murray, Alice Egerton, Yueming Gao et al. · 2025 · Biological Psychiatry
Much is known about the use, benefits, and side-effects, of clozapine in treatment resistant schizophrenia (TRS). However, why clozapine is more effective than other antipsychotics in TRS remains unclear. This paper addresses this question. TRS patients show glutamate abnormalities, and clozapine has widespread effects on glutamate. However, these actions have not been proven different to those of other antipsychotics. Immune dysfunction is also reported in TRS, and clozapine has anti-inflammatory actions, but these have not been correlated with clinical improvement. Currently, there is much i
View details →Negative / Null Result ReportOpen accessMedicine
A. Giordano, Cristina Romero-Mascarell, Begoña González-Suárez et al. · 2025 · Digestive Diseases and Sciences
The integration of artificial intelligence (AI) into capsule endoscopy is transforming gastrointestinal diagnostics by enhancing lesion detection and optimizing reading efficiency. This review focuses on the clinical applications of…
View details →Negative / Null Result ReportOpen accessMedicine
Francesco Nonino, Silvia Minozzi, L. Sambati et al. · 2026 · Cochrane Database of Systematic Reviews
RATIONALE: Alzheimer's disease is a neurodegenerative disorder and the most common cause of dementia. Aggregated amyloid-beta protein deposits are implicated in its pathogenesis. Amyloid-beta-targeting monoclonal antibodies (sometimes represented as Aβ-mAbs) are potentially disease-modifying for Alzheimer's disease: through the clearance of amyloid in the brain, they may slow cognitive and functional decline. OBJECTIVES: To assess the clinical benefits and harms of amyloid-beta-targeting monoclonal antibodies aducanumab, bapineuzumab, crenezumab, donanemab, gantenerumab, lecanemab, ponezumab,
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Athina Trachalaki, Anna Lindahl, Simone Petrarulo et al. · 2025 · Breathe
Idiopathic pulmonary fibrosis (IPF) is a chronic lung disease with limited treatment options. Despite the approval of pirfenidone and nintedanib that slow disease progression, IPF remains a disease with poor survival. Promising therapeutic…
View details →Negative / Null Result ReportOpen accessMedicine
Van Nguyen, Sreenidhi Iyengar, Haroon Rasheed et al. · 2025 · Ophthalmology Science
Purpose Develop and test a deep learning (DL) algorithm for detecting referable glaucoma. Design Retrospective cohort study. Participants A total of 6116 patients from the Los Angeles County (LAC) Department of Health Services (DHS) were…
View details →Negative / Null Result ReportOpen accessMedicine
Ruben P. A. van Eijk, Daphne N. Weemering, Sarah Opie-Martin et al. · 2025 · Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration
Objective To characterize the natural history of the revised ALS functional rating scale (ALSFRS-R) over a 24-month period following initial assessment, and to assess its associations with survival.Methods Longitudinal ALSFRS-R…
View details →Negative / Null Result ReportOpen accessMedicine
Solveigh C. Koeberle, Maria Thürmer, Fengting Su et al. · 2025 · Theranostics
: Our study deciphers the structural features of silybin contributing to hepatic lipid remodeling and suggests that silymarin/silybin protects the liver in individuals with mild metabolic dysregulation, involving a lipid class switch from triglycerides to phospholipids, whereas it may be less effective in disease states associated with severe metabolic dysregulation.
View details →Negative / Null Result ReportOpen accessMedicine
Golan Carmi · 2025 · Education Sciences
Generative AI technologies are rapidly permeating higher education as innovative tools that support teaching and learning processes. This study investigates the integration of GenAI tools into academic learning and examines their influence on students’ learning effectiveness, attitudes, and satisfaction. A quantitative survey was administered to 485 college students. The findings indicate that students’ attitudes, satisfaction, and accumulated experience with GenAI constitute the most influential factors in promoting effective learning. Perceived advantages and disadvantages also play a substa
View details →Failed Experiment ReportOpen accessMedicine
Sahar Motamedi, Nina Ravoet, Jonas Dehairs et al. · 2025 · Nature Communications
Ferroptosis, a regulated form of cell death driven by lipid peroxidation, holds promise for targeting treatment-resistant cancer cells. Using a panel of melanoma cell lines, we uncover variability in the timing of ferroptosis onset upon…
View details →Replication FailureOpen accessMedicine
Nicholas A. Marston, Erin A. Bohula, Ajay Bhatia et al. · 2026 · JAMA
Importance: Intensive lowering of low-density lipoprotein cholesterol (LDL-C) levels with PCSK9 (proprotein convertase subtilisin/kexin type 9) inhibitors for cardiovascular event reduction has largely been reserved for patients with…
View details →Negative / Null Result ReportOpen accessMedicine
Qi Sun, Yanping Zhao, Simiao Qiao et al. · 2026 · Nature Communications
Radiotherapy can both activate and suppress immunity, making it difficult to predict or modulate these opposing effects for better cancer treatment. Boron neutron capture therapy (BNCT), a cellular-level radiotherapy, has demonstrated…
View details →Negative / Null Result ReportOpen accessMedicine
Sathish Babu Vasamsetti, Samreen Sadaf, Mohammad A. Uddin et al. · 2026 · Nature Communications
How cellular metabolism facilitates tissue-resident macrophage maintenance remains elusive. Here we show that visceral adipose tissue (VAT)-resident macrophages, unlike monocyte-derived macrophages, are enriched with mitochondrial-specific antioxidant enzymes restraining inflammation and promoting VAT homeostasis and insulin sensitivity. Additionally, VAT resident macrophages express high levels of plasminogen activator inhibitor type 2, encoded by SerpinB2, which is involved in the blood coagulation cascade. SerpinB2 promotes adipose resident macrophage survival by regulating mitochondrial ox
View details →Negative / Null Result ReportOpen accessMedicine
Yi Zhang, Yanqi Han, Ying Sun et al. · 2026 · Signal Transduction and Targeted Therapy
Osteoarthritis (OA) is a debilitating joint disorder that causes chronic pain, inflammation, and detrimental bone alterations. Despite significant advances in understanding OA pathogenesis, current therapeutic strategies remain inadequate in halting disease progression or providing effective pain relief, highlighting unmet clinical needs. Recent insights into OA nociceptive pathways, inflammatory mediators, and organelle dysfunction have revealed promising therapeutic targets. Specifically, OA progression is driven by mitochondrial dysfunction (marked by accumulated damaged mitochondria with e
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Florian Missey, Emma Acerbo, Adam S. Dickey et al. · 2025 · Brain stimulation
INTRODUCTION: Medication-refractory focal epilepsy creates a significant clinical challenge, with approximately 30 % of patients deemed ineligible for surgery due to involvement of eloquent cortical regions within the epileptogenic network. For these patients, electrical neuromodulation represents a promising alternative therapy. We investigated the potential of non-invasive temporal interference (TI) electrical stimulation in reducing epileptic biomarkers in patients with mesiotemporal epilepsy (MTLE) MATERIAL AND METHOD: Thirteen patients implanted with stereoelectroencephalography (sEEG) de
View details →Replication FailureOpen accessMedicine
Mette Kruse Klausen, Signe Justesen, Julie Niemann Pedersen et al. · 2026 · The Lancet
BACKGROUND: Alcohol use disorder accounts for 5% of deaths worldwide annually, and there is an urgent need for new therapeutic interventions. Preclinical and initial human studies indicate that the GLP-1 receptor agonist semaglutide might reduce alcohol drinking. This study evaluated the efficacy of semaglutide once-weekly in treatment-seeking patients with alcohol use disorder and comorbid obesity. METHODS: In a 26-week, single-centre, randomised, double-blinded, placebo-controlled trial, treatment-seeking participants with moderate to severe alcohol use disorder and comorbid obesity were ass
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F Visalli, Matteo Capobianco, F. Cappellani et al. · 2026 · International Journal of Molecular Sciences
Mitochondrial dysfunction represents a central hallmark of aging and a broad spectrum of chronic diseases, ranging from metabolic to neurodegenerative and ocular disorders. Nicotinamide riboside (NR), a vitamin B3 derivative and efficient precursor of NAD+ (nicotinamide adenine dinucleotide), and berberine (BBR), an isoquinoline alkaloid widely investigated in metabolic regulation, have independently emerged as promising mitochondrial modulators. NR enhances cellular NAD+ pools, thereby activating sirtuin-dependent pathways, stimulating PGC-1α–mediated mitochondrial biogenesis, and triggering
View details →Negative / Null Result ReportOpen accessMedicine
Fiyinfoluwa Demilade Ojeniyi, Adeola Oluwakemi Ayoola, Olajumoke Ibitoye et al. · 2025 · Scientific Reports
Rapid diagnostic tests (RDTs) have revolutionized malaria diagnosis, playing a crucial role in improving timely treatment and supporting surveillance efforts, especially in resource-limited settings. However, the performance of RDTs can…
View details →Replication FailureOpen accessMedicine
Noor Wortelboer, Annemiek van Ommen-Nijhof, Inge R. Konings et al. · 2026 · JAMA Oncology
Importance: Cyclin-dependent kinase (CDK) 4 and 6 inhibitors (CDK4/6i) combined with endocrine therapy are widely used in hormone receptor (HR)-positive, ERBB2-negative advanced breast cancer (ABC). The SONIA trial evaluates the optimal…
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