Negative / Null Result ReportMedicine
Ozaki K, Nishioka Y, Kamitani F et al. · 2026 · Diabetes research and clinical practice
It has been controversial whether COVID-19 increases the risk of new-onset type 1 diabetes mellitus. Using large-scale claims data, we found no statistically significant association between COVID-19 and incident type 1 diabetes mellitus in…
View details →DOI: 10.1016/j.diabres.2026.113366 Negative / Null Result ReportOpen accessMedicine
Buran A, Altaş H, Özkaya Uçar Y et al. · 2026 · Journal of the Turkish German Gynecological Association
Objective To evaluate pathological findings in patients positive for human papillomavirus (HPV)-31. Material and methods This retrospective study included patients evaluated in a tertiary colposcopy clinic. The 3,546 patients tested for…
View details →DOI: 10.4274/jtgga.galenos.2026.2025-12-2 Negative / Null Result ReportOpen accessMedicine
Braun S, Selkridge I, Nocon A et al. · 2026 · Arthroplasty (London, England)
Background Extensor mechanism disruption following total knee arthroplasty (TKA) significantly impairs knee function and quality of life. Extensor mechanism reconstruction (EMR) is effective but carries risks, including post-operative…
View details →DOI: 10.1186/s42836-026-00393-8 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 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
Wrobel J, Jablonska E, Matuk K et al. · 2026 · Life (Basel, Switzerland)
Background The aim of the study was to investigate whether red blood cell antigens (A, B, D, C w , C, c, E, e, K, k, Jk a , Jk b , Fy a , Fy b , Le a , Le b , M, N, S, s, and P1) from clinically relevant blood group systems were associated…
View details →DOI: 10.3390/life16061038 Negative / Null Result ReportMedicine
Deniz-Şafak E, Adlım B · 2026 · BMC primary care
Objective As future healthcare providers, medical students play a critical role in the prevention, early recognition, and management of substance use disorders. However, the extent to which they are adequately prepared for this…
View details →DOI: 10.1186/s12875-026-03386-3 Negative / Null Result ReportMedicine
Patel A, Meena DS, Santhosh K et al. · 2026 · Journal of neuroimmunology
Background Neurocognitive dysfunction remains an important complication among people living with HIV (PLWH). Early identification of neurocognitive dysfunction by using the International HIV Dementia Scale (IHDS) may help in the prevention…
View details →DOI: 10.1016/j.jneuroim.2026.579001 Negative / Null Result Report
Rothell F, Nguyen MA, Xu E et al. · 2026 · Preprint
Neurolymphomatosis (NL), a rare manifestation of non-Hodgkin’s lymphoma affecting the peripheral nervous system, remains a diagnostic challenge. This study aimed to define an optimal diagnostic approach for timely and effective…
View details →DOI: 10.20944/preprints202605.1057.v1 Negative / Null Result ReportMedicine
Yasuda H, Yokota K, Katabami T et al. · 2026 · Hypertension research : official journal of the Japanese Society of Hypertension
Primary aldosteronism (PA) causes biochemical abnormalities such as hypokalemia and metabolic alkalosis. This study aimed to compare the effects of aldosterone on serum potassium and corrected bicarbonate (cHCO 3 - , defined as Na - Cl -…
View details →DOI: 10.1038/s41440-026-02609-5 Negative / Null Result ReportMedicine
Alotaibi W, Alrasheed S · 2026 · JPMA. The Journal of the Pakistan Medical Association
Objective To evaluate axial length, anterior chamber angle, anterior chamber depth, refractive errors and white-to-white corneal diameter, and to assess their inter-correlations with intraocular pressure among young individuals. Methods…
View details →DOI: 10.47391/jpma.20964 Negative / Null Result ReportOpen accessMedicine
Hsieh YT, Liao YC, Dulnuan HGP et al. · 2026 · Brain structure & function
Men typically display larger olfactory bulb (OB) volumes, while women demonstrate superior olfactory performance. Olfactory training (OT) has been shown to induce structural changes in OB, but whether sex influences OT-related plasticity…
View details →DOI: 10.1007/s00429-026-03126-4 Negative / Null Result ReportMedicine
Baharnoori M, Glanz B, Polgar-Turcsanyi M et al. · 2026 · Journal of the neurological sciences
Background Serum neurofilament light chain (sNfL) and glial fibrillary acidic protein (sGFAP) are promising biomarkers for Multiple Sclerosis (MS) disease activity. There is less known about their association with the symptomatic…
View details →DOI: 10.1016/j.jns.2026.125786 