Negative / Null Result ReportOpen accessMedicine
Paolini A, Serpieri M, Bonaffini G et al. · 2026 · Animals : an open access journal from MDPI
This retrospective study compared three ultrasound-guided locoregional techniques-transversus abdominis plane (TAP), quadratus lumborum (QL), and caudal thoracic paravertebral (C-TPV) blocks-in dogs undergoing laparoscopic ovariectomy.…
View details →DOI: 10.3390/ani16111612 Negative / Null Result ReportMedicine
Howick V JF, Lugo-Fagundo NS, Umadat G et al. · 2026 · Journal for healthcare quality : official publication of the National Association for Healthcare Quality
Objective To evaluate patient-reported experiences after interhospital transfer (IHT) within an integrated health system and identify communication and coordination domains associated with overall satisfaction. Methods This retrospective…
View details →DOI: 10.1097/jhq.0000000000000525 Negative / Null Result ReportMedicine
Thanapongpibul C, Niransuk P, Sassanarakkit S et al. · 2026 · Scientific reports
Microfluidic sperm selection (MSS) is a centrifugation-free alternative to density gradient centrifugation (DGC) for sperm preparation in intracytoplasmic sperm injection (ICSI). This prospective, randomized sibling-oocyte study included…
View details →DOI: 10.1038/s41598-026-55209-1 Negative / Null Result ReportMedicine
Yildiz A, Yazici S, Yildiz Z · 2026 · BMC cardiovascular disorders
Objectives This study aimed to evaluate whether peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PGC-1α) could serve as a marker of myocardial ischemia by examining its association with cross-clamp time, which reflects…
View details →DOI: 10.1186/s12872-026-06151-7 Negative / Null Result ReportMedicine
Patel N, Sajjadi A, Park A et al. · 2026 · The Laryngoscope
Objective To compare operative metrics, postoperative complications, and radiographic osseous union among surgeon-specific plates (SSPs), patient-specific plates (PSPs), and conventional un-bent plates (CPs) in microvascular mandibular…
View details →DOI: 10.1002/lary.70697 Negative / Null Result ReportMedicine
Ibelings S, Brand T, Holube I · 2026 · International journal of audiology
Objective Compilation and evaluation of test lists for the synthesised speech test "Oldenburg Phrases" (OLPHRA), consisting of semantically meaningful phrases with the fixed structure article - adjective - noun - infinitive. Design Lists…
View details →DOI: 10.1080/14992027.2026.2665401 Negative / Null Result ReportOpen accessMedicine
Yamada SM · 2026 · Surgical neurology international
Background When low-flow oxygen (O2) delivery is required, a nasal cannula is commonly used. However, no reports have described arterial blood gas analysis in actual patients receiving O2 simultaneously through a mask and a nasal cannula.…
View details →DOI: 10.25259/sni_1393_2025 Negative / Null Result ReportMedicine
Uygun SS, Ozturk M, Soylu H et al. · 2026 · BMC pediatrics
Background Premature birth is associated with a high risk of mortality and neurodevelopmental morbidity, with intraventricular hemorrhage (IVH) remaining a major cause of brain injury in preterm infants. Neuroprotective care bundles…
View details →DOI: 10.1186/s12887-026-07091-z Negative / Null Result ReportMedicine
Feng H, Gu J, Zhang J et al. · 2026 · Obesity surgery
Background Laparoscopic sleeve gastrectomy (LSG) provides durable, stable weight loss and ameliorates renal dysfunction, hyperuricemia (HUA), and other obesity-related metabolic disorders. Renal function is tightly linked to serum uric…
View details →DOI: 10.1007/s11695-026-08790-3 Negative / Null Result ReportMedicine
Gourgouta M, Athanassiou CG, Arthur FH et al. · 2026 · Journal of economic entomology
This study evaluated the effects of sorghum variety and temperature on the population growth, frass production, kernel damage, and weight loss caused by Oryzaephilus surinamensis (L.) and Trogoderma variabile, Ballion, two common…
View details →DOI: 10.1093/jee/toag139 Negative / Null Result Report
Keon-Cohen ZM, Tran C, Jones D et al. · 2026 · Preprint
Abstract Background High-quality end-of-life care (EOLC) is a recognised health and human-rights priority, yet Australian evidence largely derives from administrative data and cancer-specific, facility-based samples. Little is known about…
View details →DOI: 10.21203/rs.3.rs-9879018/v1 Negative / Null Result ReportMedicine
An N, Watanabe D, Miyachi M · 2026 · European journal of applied physiology
Purpose Excess post-exercise energy expenditure (EPEEE) refers to sustained elevation in energy expenditure above resting levels after exercise. This study compared the effect of morning (AM) and evening (PM) resistance exercise on EPEEE,…
View details →DOI: 10.1007/s00421-026-06268-9 Negative / Null Result ReportMedicine
Liu R, Zhang H, Liu C et al. · 2026 · Communications biology
Everyday speech perception often occurs under concurrent cognitive demands, but it remains unclear how speech-extrinsic load influences the neural processing of continuous speech. Here, electroencephalography (EEG) recordings from 29…
View details →DOI: 10.1038/s42003-026-10394-7 Negative / Null Result ReportOpen accessMedicine
van Vliet KE, Lobbezoo F, van Splunter AP et al. · 2026 · BMC oral health
BACKGROUND: We hypothesized that wearing a mouthguard may affect salivary flow and composition. Therefore, we investigated the impact of mouthguard use on saliva secretion rate and some salivary constituents under different jaw activities.…
View details →DOI: 10.1186/s12903-026-07849-y Negative / Null Result Report
Medina-Marino A, Shrader C, Axt J et al. · 2026 · Preprint
Abstract Background In sub-Saharan Africa, men with HIV and/or tuberculosis (TB) report negative experiences within health services and demonstrate poorer engagement and treatment outcomes compared to women. We developed and piloted an…
View details →DOI: 10.21203/rs.3.rs-9422562/v1 Negative / Null Result Report
Sönmez ÖA, Demirayak B, Bolat S et al. · 2026 · Preprint
Abstract Purpose To evaluate retinal microvascular changes in pediatric patients with systemic hypertension compared with healthy controls using optical coherence tomography (OCT) and optical coherence tomography angiography (OCTA).…
View details →DOI: 10.21203/rs.3.rs-9752065/v1 Negative / Null Result Report
Limphatcharaporn T, Sinsurin K, Sakulsriprasert P et al. · 2026 · Preprint
Abstract Purpose of the study: to examine the immediate effect of specific warm-up and static stretching on cardiovascular response and oxygen consumption during a 5 km treadmill run using a randomized controlled trial. Method: twenty…
View details →DOI: 10.21203/rs.3.rs-9399762/v1 Negative / Null Result Report
Králik R, Takácsová E, Durdík Š et al. · 2026 · Preprint
Abstract Background The clinical relevance of the BRAF V600E mutation in the surgical management of early-stage differentiated thyroid carcinoma (DTC) remains unclear. Although common in papillary thyroid carcinoma, its role in guiding…
View details →DOI: 10.21203/rs.3.rs-9407674/v1 Negative / Null Result ReportMedicine
Takatori N, Uchiyama Y, Ito H et al. · 2026 · Journal of tissue viability
Background Intraoperative pressure-related skin injuries remain a concern during surgery under general anaesthesia. Although interface pressures have been evaluated in various surgical positions, sacral pressure in the beach-chair position…
View details →DOI: 10.1016/j.jtv.2026.101027 Negative / Null Result Report
Yokoyama T, Uchino T, Yazawa Y et al. · 2026 · Preprint
Abstract Background Oral semaglutide, a glucagon-like peptide-1 receptor agonist, improves glycemic control and reduces body weight in patients with type 2 diabetes. Although proton pump inhibitors (PPIs) have been reported to slightly…
View details →DOI: 10.21203/rs.3.rs-9444720/v1 Negative / Null Result ReportMedicine
Harun AS, Shikder AHMZH, Moni SD et al. · 2026 · Journal of oral rehabilitation
Background Migraine has been associated with altered nociceptive processing and may influence the clinical presentation of odontogenic pain. This study evaluated whether migraine is associated with preoperative endodontic pain,…
View details →DOI: 10.1111/joor.70249 Negative / Null Result ReportMedicine
Zhan C, Liu S, Kang W et al. · 2026 · Environmental pollution (Barking, Essex : 1987)
Black carbon (BC) is an important component of soil organic carbon (SOC), with implications for carbon sequestration and environmental quality, yet its variability across contrasting urban systems remains insufficiently understood. This…
View details →DOI: 10.1016/j.envpol.2026.128533 Negative / Null Result ReportMedicine
Aydilek A, Erdem Y · 2026 · BMC surgery
Background Posterior malleolar fractures accompanying trimalleolar ankle injuries may compromise joint stability and lead to long-term functional impairment. However, the impact of posterior malleolar fragment (PMF) size on postoperative…
View details →DOI: 10.1186/s12893-026-03910-3 Negative / Null Result ReportMedicine
Urashima T, Yabuno T, Imanishi K et al. · 2026 · Surgical endoscopy
Background Few studies have directly compared the incidence of primary postoperative ileus (primary POI) between robotic surgery (RS) and laparoscopic surgery (LS) for rectal resection. Methods This retrospective cohort study included…
View details →DOI: 10.1007/s00464-026-12994-0 Negative / Null Result Report
Olson-Manning CF, Acharya S, Matuck L et al. · 2026 · Preprint
Abstract Plant hybridization often alters herbivore-relevant traits, yet the effects of hybrid feeding on specialist herbivores, especially those that co-opt host-plant defenses, are largely unknown. We examined how naturally derived…
View details →DOI: 10.21203/rs.3.rs-9919052/v1 Negative / Null Result ReportMedicine
Fujii S, Hirai S, Fujita K et al. · 2026 · Neurologia medico-chirurgica
Flow diverter braid deformation is occasionally observed after flow diverter placement. However, the frequency and clinical significance of flow diverter braid deformation in non-drawn filled tube wire devices remain unclear. This…
View details →DOI: 10.2176/jns-nmc.2025-0435 Negative / Null Result ReportMedicine
Ntaka KL, Mpanya D, Adamu UG et al. · 2026 · Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions
Background The radial artery is the preferred access for performing diagnostic coronary angiograms (DCA). However, data on the safety and efficacy of radial compared to femoral access in low- and middle-income countries is limited. Aims…
View details →DOI: 10.1002/ccd.70654 Negative / Null Result ReportMedicine
Ižarik Verešpejová A, Grendár M, Kertys M et al. · 2026 · Biomolecules
Bile acids (BA) are increasingly recognized as signaling molecules involved in metabolic regulation and inflammatory processes, both of which are relevant to Parkinson's disease (PD). However, their role in PD and disease progression…
View details →DOI: 10.3390/biom16060875 Negative / Null Result ReportMedicine
Gucluer Kocaoglu MN, Kahraman H, Nayman S et al. · 2026 · BMC infectious diseases
Background Staphylococcus aureus bacteremia (SAB) is associated with substantial short-term mortality, but the relative contributions of methicillin resistance, treatment adequacy, and host-related factors to outcome remain unclear. This…
View details →DOI: 10.1186/s12879-026-13847-w Negative / Null Result ReportMedicine
Sun J, Xiong Y, Qiu J et al. · 2026 · Annals of surgical oncology
Background Locally advanced thymic epithelial tumors (TETs) may extend into the adjacent brachiocephalic vein (BCV), creating major technical challenges for resection. While BCV reconstruction is traditionally considered after tumor…
View details →DOI: 10.1245/s10434-026-19935-0 