Negative / Null Result ReportMedicine
Sarpeleh F, Ehtesham N, Mirjani R et al. · 2026 · Lupus
ObjectiveThe dysfunction of interleukin-7 receptor alpha (IL-7Rα), which is encoded by the IL7RA gene, has been implicated in the development of systemic lupus erythematosus (SLE). This study aimed to investigate the relationship between…
View details →DOI: 10.1177/09612033261429135 Negative / Null Result ReportOpen accessMedicine
Mazurek A, Jankowski M, Grudziąż-Sękowska J · 2026 · BMC nephrology
BACKGROUND: The weekend effect refers to the observation that patients admitted to the hospital on the weekend experience poorer clinical outcomes than patients admitted during the workweek. This effect has not been previously studied…
View details →DOI: 10.1186/s12882-026-04885-2 Negative / Null Result ReportOpen accessMedicine
Chen JSC, Osborne JWA, Menz HB et al. · 2026 · Journal of foot and ankle research
Background Fatty infiltration, or fatty atrophy, of the abductor digiti minimi (ADM) muscle of the foot is proposed to be associated with entrapment of the first branch of the lateral plantar nerve (i.e., Baxter's neuropathy) as part of…
View details →DOI: 10.1002/jfa2.70155 Negative / Null Result ReportMedicine
Millán J, Gal B, Esquerda M et al. · 2026 · BMC medical education
Background In Spain, access to specialized medical training is determined through a highly competitive national examination (MIR). While the educational climate of medical schools has been associated with students' learning outcomes and…
View details →DOI: 10.1186/s12909-026-09516-w Negative / Null Result Report
Zhong R, Chen S, Cui N et al. · 2026 · Preprint
Abstract Background: Adolescents diagnosed with depression frequently experience anxiety and other psychological symptoms. Yet, the interrelationships among multiple psychological symptoms are under-investigated. Network analysis is a…
View details →DOI: 10.21203/rs.3.rs-9811750/v1 Negative / Null Result Report
Mahaboob L, Chehade H, Gnanamuthu SS et al. · 2026 · Preprint
Abstract Background Fast-food consumption has become increasingly prevalent among university students, contributing to unhealthy dietary patterns and rising obesity rates. Understanding students' fast-food consumption habits, knowledge,…
View details →DOI: 10.21203/rs.3.rs-9610403/v1 Negative / Null Result ReportMedicine
Vejdani-Jahromi M, Calle E, Ganem O et al. · 2026 · AJNR. American journal of neuroradiology
Background and purpose Alzheimer disease (AD) is a progressive neurodegenerative disorder that predominantly affects the aging population. Anti-amyloid β (anti-Aβ) therapies, such as lecanemab, have been developed to slow disease…
View details →DOI: 10.3174/ajnr.a9056 Negative / Null Result ReportOpen accessMedicine
Brown J, Abdullah N, Sobuwa S · 2026 · International journal of emergency medicine
BACKGROUND: Endotracheal intubation is a critical life-saving intervention in prehospital emergency care, yet evidence supporting its safe implementation by prehospital practitioners in lower- to middle-income countries remains limited.…
View details →DOI: 10.1186/s12245-026-01183-4 Methods Dead-EndMedicine
Dogruoz F, Askin A, Ergun A et al. · 2026 · Journal of clinical medicine
Background/Objectives: The extent to which patient-reported outcome measures (PROMs) reflect objective functional recovery after surgical repair of acute Achilles tendon rupture remains unclear. This study aimed to evaluate the…
View details →DOI: 10.3390/jcm15124669 Negative / Null Result ReportMedicine
El Habashy HR, Ahmed SM, Al Salmawy DA et al. · 2026 · Neurological research
Background Bell's palsy (BP) is the most common acute peripheral mononeuropathy worldwide. While electrodiagnostic studies are established tools for functional assessment, high-resolution ultrasonography (HRUS) has emerged as a…
View details →DOI: 10.1080/01616412.2026.2680967 Negative / Null Result Report
Benmoussa H, Barkani ME, Khodriss C et al. · 2026 · Preprint
Abstract Background: Dry eye disease is the most common ophthalmological manifestation in patients with rheumatoid arthritis (RA). Its diagnosis relies on clinical parameters and non-invasive imaging techniques. The aim of this study was…
View details →DOI: 10.21203/rs.3.rs-9248654/v1 Negative / Null Result ReportMedicine
Mohan Kumar R, Gomaa AR, Scarffe D et al. · 2026 · Foot (Edinburgh, Scotland)
Introduction Achilles Tendon Ruptures (ATR) in sport has only previously been investigated in an athletic population. Our aim in this study was to understand the psychology and function of ATR and their return to sport. Methods A historic…
View details →DOI: 10.1016/j.foot.2026.102237 Negative / Null Result ReportMedicine
Morais RF, Duro D, Pires R et al. · 2026 · Cognitive and behavioral neurology : official journal of the Society for Behavioral and Cognitive Neurology
Background Emotion perception is the capacity that enables humans to correctly identify the cues that guide interpersonal interactions, forming the basis for social behavior. The parahippocampal cortex may contribute to emotion perception…
View details →DOI: 10.1097/wnn.0000000000000420 Negative / Null Result ReportMedicine
Ford LB, Irvine M, Lee H et al. · 2026 · HLA
Mismatched allogeneic haematopoietic stem cell transplants (HSCT) are complicated by the presence of pre-existing HLA-specific antibodies targeting the mismatched HLA antigens (DSAs). Data indicates that the presence of DSAs…
View details →DOI: 10.1111/tan.70782 Negative / Null Result ReportOpen accessMedicine
Nithya M, Titiyal R, Ajayababu A et al. · 2026 · Journal of clinical medicine
Background: Obstructive sleep apnea (OSA) is common in individuals with obesity, largely due to increased soft tissue causing upper airway narrowing. However, mechanisms of OSA improvement following weight loss are incompletely understood,…
View details →DOI: 10.3390/jcm15114038 Negative / Null Result ReportOpen accessMedicine
Soumboundou SM, Ndiaye ML, Ndiaye R et al. · 2026 · Cureus
Introduction The advent of 3D imaging has created a significant opportunity to enhance the accuracy of age estimation. By utilizing 3D segmentation, it is now possible to evaluate the three-dimensional pulp volume as an indicator of age.…
View details →DOI: 10.7759/cureus.109325 Negative / Null Result Report
Kong W, Mosciatti A, Boulanger J et al. · 2026 · Preprint
Paul Green hypothesized that growth anisotropy of plant cylindrical organs could be controlled by cell-wall elastic strain. The present study aimed to challenge this hypothesis through a robust experimental and analytical framework. By…
View details →DOI: 10.64898/2026.02.09.704413 Negative / Null Result ReportMedicine
Lee BJ, Kong IJ, Yoon JA · 2026 · Lymphatic research and biology
Purpose To examine the association between clinical severity and lymphatic function of breast cancer-related lymphedema. Methods and results A total of 151 patients with lymphedema after breast cancer-related mastectomy were enrolled. The…
View details →DOI: 10.1177/15578585261419368 Negative / Null Result ReportMedicine
Nalwa A, Visakhan A, Elhence PA et al. · 2026 · Indian journal of surgical oncology
Programmed cell death ligand-1 (PD-L1) is involved in T-cell regulation by acting as an immune checkpoint inhibitor, and its expression is being widely studied in various malignancies. The following study was designed to examine the role…
View details →DOI: 10.1007/s13193-026-02565-z Negative / Null Result ReportOpen accessMedicine
Rizvanoglu İH · 2026 · Foot & ankle orthopaedics
Background Osteochondral lesions of the talus (OLT) represent a challenging ankle pathology that may lead to persistent pain, functional impairment, and progressive joint degeneration. Open transmalleolar osteochondral autograft transfer…
View details →DOI: 10.1177/24730114261445398 Negative / Null Result ReportOpen accessMedicine
Mhlana A, Milanes-Rodriguez G, Olojede SO et al. · 2026 · BMC endocrine disorders
Background Sleep is essential for maintaining the body's balance, particularly in regulating the Hypothalamic-pituitary-adrenal (HPA) axis, which controls cortisol, the main stress hormone. Cortisol follows a daily rhythm, but irregular…
View details →DOI: 10.1186/s12902-026-02266-2 Negative / Null Result Report
Doğantekin E, Albayrak F, Doğantekin A et al. · 2026 · Preprint
Introduction: Microbiota refers to all microorganisms colonising the body, whereas microbiome is a broader term covering the genetic material and ecosystem of this population. The skin is the largest organ of the body with a skin…
View details →DOI: 10.20944/preprints202602.1466.v1 Negative / Null Result ReportMedicine
Mizuta I, Yamashita F, Sutoh Y et al. · 2026 · Geriatrics & gerontology international
Aim Cerebral small vessel disease (CSVD)-related MRI findings, including white matter hyperintensities (WMHs), are not rare in general elderly populations. The aim of this study was to elucidate the contribution of hereditary CSVD-related…
View details →DOI: 10.1111/ggi.70400 Negative / Null Result ReportMedicine
Iturregui C, Liu CC, Carter RT et al. · 2026 · Veterinary ophthalmology
Justification Circadian variations in central corneal thickness (CCT) and their correlation with intraocular pressure (IOP) have not been reported in horses. This information may be clinically relevant when interpreting IOP readings.…
View details →DOI: 10.1111/vop.70194 Negative / Null Result ReportMedicine
Samim M, Jardon M, Vonck C et al. · 2026 · Journal of orthopaedics
Purpose To assess correlation of pre-operative symptoms, labral damage and chondrolabral junction pathology on MRI with intra-operative findings in patients undergoing hip arthroscopy for femoroacetabular impingement (FAI). Methods…
View details →DOI: 10.1016/j.jor.2026.03.010 Negative / Null Result ReportOpen accessMedicine
Santo B, Romanello M, De Franco P et al. · 2026 · Journal of clinical medicine
Background/Objectives: The neutrophil-to-lymphocyte ratio (NLR) is a simple biomarker reflecting systemic inflammatory status and has been investigated in head and neck cancer (HNC) as a potential prognostic indicator. Its role in relation…
View details →DOI: 10.3390/jcm15103866 Negative / Null Result ReportMedicine
Melek Ş, Orhun ÖT, Şenocak MG et al. · 2026 · The Journal of small animal practice
Objectives The present study evaluated the accuracy and agreement of heart rate and peripheral oxygen saturation measurements obtained using the Owlet Smart Sock in awake dogs with low activity levels, using a veterinary patient monitor as…
View details →DOI: 10.1111/jsap.70162 Negative / Null Result Report
Li C, Liu s · 2026 · Preprint
Abstract Objective: This study aims to investigate the dynamic evolution patterns of regional ventilation parameters monitored by bedside electrical impedance tomography (EIT) in pediatric patients with acute respiratory distress syndrome…
View details →DOI: 10.21203/rs.3.rs-8974424/v1 Negative / Null Result Report
SUHA BK · 2026 · Preprint
Abstract This study aims to determine the relationship between the moral intelligence of intensive care nurses and their attitudes towards medical errors. The study was designed as a descriptive, cross-sectional study. The study sample…
View details →DOI: 10.21203/rs.3.rs-9247598/v1 Negative / Null Result ReportMedicine
Krishnamurthy P, Gnanaraj JP, Ganesan P · 2026 · JRSM cardiovascular disease
Background Diastolic wall strain (DWS) is based on linear elastic theory, which shows that impaired diastolic wall thinning reflects resistance to deformation in diastole and thus, increased diastolic myocardial stiffness. We aim to…
View details →DOI: 10.1177/20480040261418963 