Negative / Null Result ReportOpen accessMedicine
Mostafavi M, Rezazadeh F, Fattahi MJ et al. · 2026 · Journal of dentistry (Shiraz, Iran)
Background Multiple studies have revealed an association between vitamin D levels, genetic polymorphisms of the VDR (vitamin D receptor) gene, and the underlying causes of various bone and cartilage disorders. Purpose This study aimed to…
View details →DOI: 10.30476/dentjods.2025.106238.2644 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
Lukies M, Darby O, Wani S et al. · 2026 · Journal of medical imaging and radiation oncology
Uterine artery embolisation (UAE) is an evidence-based treatment for symptomatic fibroids and adenomyosis. Ultrasound is commonly utilised for assessment post UAE given its wide availability and low cost; however, contemporary studies…
View details →DOI: 10.1111/1754-9485.70132 Negative / Null Result ReportOpen accessMedicine
Karatutlu AS, Karatutlu MA, Aydin S · 2026 · Renal failure
Chronic kidney disease (CKD) is characterized by progressive renal fibrosis and irreversible loss of kidney function. Decorin, an extracellular matrix proteoglycan with antifibrotic properties, may reflect underlying fibrotic activity and…
View details →DOI: 10.1080/0886022x.2026.2689757 Negative / Null Result ReportOpen accessMedicine
Xu G, Li X, Song G et al. · 2026 · Frontiers in sports and active living
Background Poor sleep quality and anxiety are prevalent among university students and pose growing public health concerns. Physical fitness is often assumed to be associated with better sleep and mental health outcomes; however, evidence…
View details →DOI: 10.3389/fspor.2026.1795033 Negative / Null Result ReportMedicine
Tel Adigüzel K, Atasoy S, Güler B et al. · 2026 · Nutrition and health
BackgroundMuscle strength is a key determinant of functional capacity and quality of life, influenced by various modifiable factors including nutrition. Emerging evidence suggests a potential link between dietary acid load and…
View details →DOI: 10.1177/02601060261462777 Negative / Null Result ReportOpen accessMedicine
Vatansever A, Erçakmak Güneş B, Günenç Beşer C et al. · 2026 · Medicine
The cerebellar tentorium, composed of 2 laminae of dura mater, is an essential structure that separates the posterior and middle cerebral fossae. As it has a dural sinus within its 2 laminae, it carries significant risk potential. Cranium…
View details →DOI: 10.1097/md.0000000000049179 Negative / Null Result ReportMedicine
Pan S, Xiao L, Li Y et al. · 2026 · BMC infectious diseases
Objective The objective of this study was to investigate the changes of Myeloid-derived suppressor cells (MDSCs) and cytokines expression during mother-to-child blockade in chronic HBV infected patients. Method This was a single-center,…
View details →DOI: 10.1186/s12879-026-13594-y Negative / Null Result Report
Amelia P, Tobing TC, Adriansyah R et al. · 2026 · Preprint
Abstract Background: Children with congenital heart disease (CHD) are at risk of impaired quality of life (QoL) due to hemodynamic burden and nutritional disturbances. Thiamine plays an essential role in myocardial energy metabolism, but…
View details →DOI: 10.21203/rs.3.rs-9513847/v1 Negative / Null Result ReportMedicine
Saygin I, Usta ZT, Akbas A et al. · 2026 · Turk patoloji dergisi
Objective Colorectal cancer (CRC) is the third most common type of cancer worldwide and the fourth most common cause of cancer-related deaths. Innovative approaches like immunotherapy are necessary for treatment-resistant patients with a…
View details →DOI: 10.5146/tjpath.2026.13533 Negative / Null Result ReportMedicine
Hao L, Ju W, Huang Y · 2026 · The Journal of dermatological treatment
Background Photodynamic therapy (PDT) is an effective treatment for port-wine stains (PWS). However, the relationship between the diameter of malformed capillaries and the efficacy of PDT in PWS has been rarely studied. Objective This…
View details →DOI: 10.1080/09546634.2026.2685355 Negative / Null Result Report
Wen LH, Siang JYD, Yee LF et al. · 2026 · Preprint
Abstract Objectives To investigate the incidence and factors influencing retinal displacement as well as functional visual outcomes following rhegmatogenous retinal detachment (RRD) repair. Methods A prospective observational study which…
View details →DOI: 10.21203/rs.3.rs-9453061/v1 Methods Dead-EndOpen accessMedicine
Aslam A, Kamran M, Siddiqui S · 2026 · Frontiers in public health
Introduction One of the most widely studied topic in the educational research is teacher's wellbeing and rightly so, as resilient and well-supported teacher serves as an essential pillar for creating an effective and durable educational…
View details →DOI: 10.3389/fpubh.2026.1839632 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 