Negative / Null Result Report
Ge H, Calero C, Costas R · 2026 · Preprint
Abstract Global scientific mobility is central to the circulation of knowledge, skills and opportunities, but its recent evolution remains unclear. Using the Dimensions database, we reconstruct publication-based career trajectories for…
View details →DOI: 10.21203/rs.3.rs-9587466/v1 Negative / Null Result ReportMedicine
Rebel HG, de Gruijl FR · 2026 · Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology
We reported earlier that adult FabplCre;Apc 15lox/+ mice with either daily UV exposure or vitamin D supplementation developed not significantly fewer intestinal tumours but less tumour bulk (reduced outgrowth) than control mice that…
View details →DOI: 10.1007/s43630-026-00935-8 Negative / Null Result ReportMedicine
De Grandi D, LuTheryn G, Stoffels M et al. · 2026 · Ultrasound in medicine & biology
Objective Dental biofilms are responsible for the majority of oral cavity diseases (e.g., caries, periodontitis and gingivitis). In this work, we evaluate the effects of therapeutic ultrasound on a Streptococcus mutans biofilm model. The…
View details →DOI: 10.1016/j.ultrasmedbio.2026.05.008 Negative / Null Result ReportMedicine
Uyoga MA, Baumgartner J, Malan L et al. · 2026 · The Journal of nutrition
Background Young South African women face a double-burden of overweight or obesity and iron deficiency, with the former predicting the latter. Omega-3 long-chain polyunsaturated fatty acid (LCPUFA) supplementation can reduce inflammation.…
View details →DOI: 10.1016/j.tjnut.2025.101280 Negative / Null Result ReportMedicine
Lim LS · 2025 · Annals of internal medicine
Clinical impact ratings GIM/FP/GP: [Formula: see text] Cardiology: [Formula: see text] Geriatrics: [Formula: see text] Public Health: [Formula: see text].
View details →DOI: 10.7326/annals-25-04447-jc Negative / Null Result ReportMedicine
Pak MA, Güzel Altıntaş F, Okyar G et al. · 2026 · Scientific reports
Anastomotic leakage is a serious complication after colorectal surgery. Smoking is known to impair anastomotic healing. The use of electronic cigarettes is increasing worldwide, and information about their effects on wound healing remains…
View details →DOI: 10.1038/s41598-026-53666-2 Negative / Null Result ReportMedicine
Amoroso F, Miere A, Kodjikian L et al. · 2026 · Retina (Philadelphia, Pa.)
Purpose This study aimed to compare exudative recurrence features detected by optical coherence tomography angiography (OCTA) with those identified by spectral domain optical coherence tomography (SD-OCT), considered the gold standard, and…
View details →DOI: 10.1097/iae.0000000000004815 Negative / Null Result ReportMedicine
Kalli AJ, Mäkelä P, Huhtala H et al. · 2026 · Acta anaesthesiologica Scandinavica
Background Sternotomy causes substantial postoperative pain. Recently, several less invasive nerve blocks have been described that are safer to use even on anticoagulated patients. This study aims to evaluate early pain management using…
View details →DOI: 10.1111/aas.70253 Negative / Null Result ReportMedicine
Quan S, Xie H, Zhang D et al. · 2026 · Esophagus : official journal of the Japan Esophageal Society
Background Postoperative chylothorax is a serious complication following esophagectomy. The efficacy of thoracic duct ligation (TDL) for chylothorax prevention is controversial. This study aimed to evaluate the impact of TDL on chylothorax…
View details →DOI: 10.1007/s10388-026-01219-x Negative / Null Result ReportMedicine
Osmani R, Cavallotto L, William N et al. · 2026 · Cryobiology
Cryopreservation of zebrafish embryos remains challenging due to their low tolerance for cryoprotectant exposure and their susceptibility to lethal ice formation. Ice recrystallization inhibitors (IRIs) such as…
View details →DOI: 10.1016/j.cryobiol.2026.105640 Negative / Null Result ReportMedicine
Wick B, Sahibzada O, Cherner A et al. · 2026 · Journal of vascular surgery. Venous and lymphatic disorders
Objective The optimal clinical management of isolated distal deep venous thrombosis (IDDVT) remains controversial as the benefits of routine anticoagulant therapy are not clearly defined amid the risk of bleeding events. Our study aimed to…
View details →DOI: 10.1016/j.jvsv.2026.102556 Negative / Null Result ReportMedicine
Hetherington A, Bauer L, Rablin S et al. · 2026 · Australasian emergency care
Background Acute wheeze is a common emergency department presentation among pre-school aged children. Innovative models of care that safely optimise treatment and streamline patient flow are needed. A nurse-led stretching of inhaled…
View details →DOI: 10.1016/j.auec.2026.05.001 Negative / Null Result ReportMedicine
Agweyu A, Mwaniki P, Menon V et al. · 2026 · Nature medicine
Rigorous evidence on the performance of large language models (LLMs) in real-world, low-resource clinical settings remains limited. Here we conducted a pragmatic, cluster-randomized trial in 16 primary care facilities in Kenya. Clinical…
View details →DOI: 10.1038/s41591-026-04503-6 Negative / Null Result ReportMedicine
Khan S, Simmons KL, Khan S et al. · 2026 · Orbit (Amsterdam, Netherlands)
Purpose To determine whether prophylactic antibiotic administration following the development of an orbital floor fracture or after orbital floor fracture repair is associated with a reduced risk of orbital or periorbital cellulitis.…
View details →DOI: 10.1080/01676830.2026.2673568 Negative / Null Result Report
Connor V, Mitsi E, Cheliotis KS et al. · 2026 · Preprint
Nasopharyngeal colonisation with Streptococcus pneumoniae is a prerequisite for transmission and disease and represents an important immunising event. While colonisation induces serotype-specific immunity, the mechanisms underlying…
View details →DOI: 10.64898/2026.06.23.26355871 Negative / Null Result ReportMedicine
Spotts EK, Chatterjee A, Coleman L et al. · 2026 · Psychology & health
Objective Informing individuals about the nocebo effect, termed nocebo education, can minimise the experience of side effects. One untested possibility is that nocebo education promotes behaviour change, such that it decreases the…
View details →DOI: 10.1080/08870446.2026.2668115 Negative / Null Result ReportMedicine
Cheung LC, Mao F, Rydzak G et al. · 2026 · Annals of internal medicine
Background Cervical intraepithelial neoplasia (CIN) grade 2 (CIN 2) is an equivocal diagnosis of cervical precancer, and appropriate management continues to be debated. Objective To estimate the effect of immediate (by 6 months) versus…
View details →DOI: 10.7326/annals-25-04053 Negative / Null Result Report
Yu Q, Zeng L, Chen Z et al. · 2026 · Preprint
Abstract Fibroblast growth factor 23 (FGF23) is closely associated with atrial fibrillation (AF), yet whether it modulates sodium and calcium currents in atrial myocytes remains unclear. ETV1, a key transcription factor regulating atrial…
View details →DOI: 10.21203/rs.3.rs-9191199/v1 Negative / Null Result ReportMedicine
Kam MK, Kim JW, Choi JY et al. · 2026 · Biochemical and biophysical research communications
Tau aggregation in neurons is a pathological hallmark of Alzheimer's disease (AD). The development of therapeutic drugs that inhibit tau aggregation in tauopathies, including AD, remains challenging. Herein, we developed a tau…
View details →DOI: 10.1016/j.bbrc.2026.154140 Negative / Null Result ReportOpen accessMedicine
Lopez DE, Carmalt JL · 2026 · Frontiers in veterinary science
Background The equine temporomandibular joint (TMJ) is divided into two non-communicating joint (discotemporal DTJ and discomandibular DMJ) compartments. Ultrasound has been extensively used as a diagnostic tool in the horse, but previous…
View details →DOI: 10.3389/fvets.2026.1812140 Negative / Null Result ReportMedicine
Lex JR, Ekhtiari S, Entezari B et al. · 2026 · The Journal of bone and joint surgery. American volume
Background Obesity is an independent risk factor for complications following total hip arthroplasty (THA). Preoperative bariatric surgery to facilitate weight loss has been used to reduce complication risk, but its effectiveness remains…
View details →DOI: 10.2106/jbjs.25.01658 Negative / Null Result ReportMedicine
Giaccari LG, Brunetti S, Coppolino F et al. · 2026 · Medical sciences (Basel, Switzerland)
Background : Obesity increases the risk of postoperative pulmonary complications (PPCs), and active smoking may further amplify this risk. Whether smoking status identifies a subgroup of obese surgical patients with differential PPC risk…
View details →DOI: 10.3390/medsci14020284 Negative / Null Result Report
Zhao H, Shin D, Tucker E et al. · 2026 · Preprint
Aldoximes are amino acid-derived metabolites that serve as precursors of auxins and modulate phenylpropanoid production in Arabidopsis. However, the enzymes responsible for aldoxime production in Solanaceae remain unknown. Here, we report…
View details →DOI: 10.64898/2026.05.07.723529 Negative / Null Result ReportMedicine
Jdidi H, de Bisschop C, Dugué B et al. · 2026 · European journal of applied physiology
Purpose Whole-body cryostimulation (WBC) has recently been shown to improve autonomic nervous control of the cardiovascular system. This study aimed to investigate the acute and repeated effects of WBC on baroreflex sensitivity (BRS),…
View details →DOI: 10.1007/s00421-026-06261-2 Failed Experiment ReportMedicine
Meco M, Carreira RP, Ochota M et al. · 2026 · Theriogenology
This study describes embryo developmental progression and morphokinetic patterns in embryos derived from oocytes of young and aged domestic cats, a model for endangered felids, using a time-lapse monitoring system. Because maternal aging…
View details →DOI: 10.1016/j.theriogenology.2026.118026 Negative / Null Result ReportMedicine
Pittmann R, Herring E, Pennington S et al. · 2026 · Frontiers in health services
Introduction Telehealth etiquette refers to professional behaviors that support effective virtual communication between patients and providers. While telehealth has become a lasting part of healthcare delivery, most health professions…
View details →DOI: 10.3389/frhs.2026.1840148 Negative / Null Result ReportMedicine
Glenthøj LB, Vernal DL, Mariegaard LS et al. · 2026 · Schizophrenia (Heidelberg, Germany)
Virtual reality (VR)-assisted avatar therapy has shown promising effects for reducing voice-related distress and overall severity of persistent auditory verbal hallucinations (AVH) in psychosis, yet the mechanisms underlying these…
View details →DOI: 10.1038/s41537-026-00779-2 Negative / Null Result ReportOpen accessMedicine
Brar MS, Park JJ, de Buck van Overstraeten A · 2026 · Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland
Background and aims Fertility and mode of delivery are major concerns for women with ulcerative colitis (UC) undergoing ileal pouch-anal anastomosis (IPAA). Although infertility after IPAA has been attributed to pelvic adhesions, the…
View details →DOI: 10.1111/codi.70437 Negative / Null Result ReportMedicine
Caunca M, Gutierrez S, Wheeler K et al. · 2026 · Neurology
Background and objectives The mechanisms underlying racial/ethnic differences in dementia incidence and pathology are multifactorial, and hypertension represents an actionable target for reducing these differences. We aimed to estimate the…
View details →DOI: 10.1212/wnl.0000000000218164 Negative / Null Result ReportMedicine
Parlak Insel B, Guven Y, Sepet E et al. · 2026 · BMC oral health
Within the concept of minimal invasive dentistry, the progression of initial caries lesions can be inhibited with preventive measures. This study evaluated the microleakage and remineralization potential of a bioactive fissure sealant (FS)…
View details →DOI: 10.1186/s12903-026-08761-1