Negative / Null Result Report
Conteville LV, Fernandes JPA, Frajacomo FT et al. · 2026 · Preprint
Abstract OBJECTIVES To examine the association between longitudinal trajectories of anthropometric nutritional status, physical activity, and overall survival among women with endometrial cancer. METHODS In a prospective cohort study, we…
View details →DOI: 10.21203/rs.3.rs-9438420/v1 Negative / Null Result ReportMedicine
Hakim MS, Hashimi MH, Saeed KM et al. · 2026 · Eastern Mediterranean health journal = La revue de sante de la Mediterranee orientale = al-Majallah al-sihhiyah li-sharq al-mutawassit
Background Viral hepatitis and HIV infections are common public health concerns among injecting drug users, however, there is limited evidence on their seroprevalence in Afghanistan. Aim To determine the seroprevalence of hepatitis B,…
View details →DOI: 10.26719/2026.32.2.61 Negative / Null Result ReportOpen accessMedicine
Popovic R, Cvitanovic S, Sarac I et al. · 2026 · Cureus
Objective To assess parents' knowledge of recommended oral-hygiene practices for children and to describe oral-hygiene behaviors within families (parents and children), as well as factors associated with children's oral-hygiene outcomes.…
View details →DOI: 10.7759/cureus.100792 Negative / Null Result ReportMedicine
Famuyide L, Patel J, Nembhard WN · 2026 · Birth defects research
Background Hypospadias is one of the most common genital defects in boys, affecting about 1 in 125 live-born boys. Several studies have examined the association between a single environmental exposure and risk of hypospadias, but few have…
View details →DOI: 10.1002/bdr2.70022 Negative / Null Result ReportOpen accessMedicine
Ye B, Liu Y, Zhang J et al. · 2026 · Frontiers in nutrition
Background To investigate the associations between consumption of sugar-sweetened beverages (SSBs), artificially sweetened beverages (ASBs), and natural juices (NJs) and incident kidney stone disease (KSD), and to assess whether genetic…
View details →DOI: 10.3389/fnut.2026.1844118 Negative / Null Result ReportMedicine
Kılıç A, Koçak Ulucaköy R, Osmanov Z et al. · 2026 · Biomarkers in medicine
Objective Biomarkers that accurately reflect disease activity and inflammatory burden are needed, particularly in the early stages of spondyloarthropathy (SpA). This study aimed to evaluate the association between serum neopterin levels…
View details →DOI: 10.1080/17520363.2026.2686306 Negative / Null Result ReportMedicine
Sussadee M, Jarudecha T, Muikaew R et al. · 2026 · Animals : an open access journal from MDPI
Feline hypertrophic cardiomyopathy (HCM) is the most common cardiac disease in cats, causing morbidity and mortality. Recently, a variant in the Alström syndrome protein 1 ( ALMS1 ) gene has been reported to be associated with HCM in…
View details →DOI: 10.3390/ani16121815 Negative / Null Result ReportMedicine
Choi SJ · 2026 · BMC public health
Background Walking is a widely accessible form of physical activity and has been consistently associated with improved health-related quality of life (HRQoL) at the individual level. However, less is known about how walking participation…
View details →DOI: 10.1186/s12889-026-27962-5 Negative / Null Result ReportMedicine
McCaw K, Fink B, Danis D et al. · 2026 · American journal of veterinary research
Objective To compare the accuracy of a tibial plateau-leveling osteotomy (TPLO) using a modular guide (OssAbility) compared to the traditional freehand method. We hypothesized that guide use would improve TPLO centering and accuracy in the…
View details →DOI: 10.2460/ajvr.26.03.0128 Negative / Null Result ReportOpen accessMedicine
Gaba K, Kumar K, Kaushik R et al. · 2026 · Cureus
Background The use of post-mortem blood culture as a diagnostic tool in medico-legal autopsies is limited. Differentiating true infection from contamination or post-mortem bacterial translocation remains a challenge. This study aimed to…
View details →DOI: 10.7759/cureus.104988 Negative / Null Result Report
Zehra J, Kumari C, Bibi A et al. · 2026 · Preprint
Abstract Objective This study aimed to investigate in-hospital mortality rates among different Mannheim Peritonitis Index (MPI) score groups in patients who underwent emergency laparotomy due to hollow viscus perforation. Methods We…
View details →DOI: 10.21203/rs.3.rs-9066416/v1 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
Fedeli L, Magistrelli A, Vaiano A et al. · 2026 · Journal of radiological protection : official journal of the Society for Radiological Protection
The reduction of the annual equivalent dose limit to the lens of the eye from 150 to 20 mSv has increased the need for reliable assessment of occupational eye lens exposure, particularly in interventional radiology. Lens absorbed dose is…
View details →DOI: 10.1088/1361-6498/ae6277 Negative / Null Result ReportMedicine
Brandtzäg AA, Eiberg JP, Taudorf M et al. · 2026 · EJVES vascular forum
Introduction To evaluate intra-arterial pressure measurement (IAPM) in relation to pre- and intra-operative diagnostic methods for assessing superior mesenteric artery (SMA) stenosis in patients with a diagnosis of chronic mesenteric…
View details →DOI: 10.1016/j.ejvsvf.2026.03.001 Negative / Null Result ReportMedicine
Kain ZE, Schuurman E, Baez-Navarro X et al. · 2026 · Laboratory investigation; a journal of technical methods and pathology
Purpose HER2-low breast cancer has gained clinical relevance owing to the efficacy of trastuzumab deruxtecan. However, variability in detecting low HER2 expression may affect patient eligibility. This nationwide study in the Netherlands…
View details →DOI: 10.1016/j.labinv.2026.106136 Negative / Null Result ReportMedicine
Rasmussen LS, Alstrup A, Markussen L et al. · 2026 · Military medicine
Introduction A run test is used in the assessment of physical fitness in military applicants. Seismocardiography is a fast, non-invasive method for estimation of cardiorespiratory fitness which could replace conventional run tests. We…
View details →DOI: 10.1093/milmed/usaf511 Negative / Null Result Report
Psenicka O, Brutvan T, Vitkova H et al. · 2026 · Preprint
Abstract Background : Systemic inflammatory response syndrome (SIRS) is associated with changes in muscle metabolism. Resulting muscle weakness is linked with adverse outcomes, e.g. prolonged mechanical ventilation, length of hospital stay…
View details →DOI: 10.21203/rs.3.rs-8991519/v1 Negative / Null Result ReportMedicine
Brilli D, Giansanti M, Bertoldo S et al. · 2026 · International journal of computerized dentistry
Aim The aim of the present study was to evaluate the accuracy of dynamic navigation (DN) in miniscrew insertion in the palatal vault by comparing the deviation between planned and placed miniscrew positions. The secondary outcome was to…
View details →DOI: 10.3290/j.ijcd.b6329377 Negative / Null Result ReportMedicine
Nasr A, Hourani R, Ghzayel L et al. · 2026 · The Laryngoscope
Objective To analyze the correlation between vocal tract fat volume and patient tolerance to office-based laryngeal surgery using the transnasal approach. Methods The medical records and video recordings of all patients who underwent…
View details →DOI: 10.1002/lary.70547 Negative / Null Result ReportOpen accessMedicine
Itagaki T, Ueki Y, Oyama Y et al. · 2026 · Scientific reports
Achilles tendon (AT) xanthomas are characteristic manifestations of familial hypercholesterolemia (FH). Although soft X-ray radiography (XR) and ultrasonography (US) are used to assess AT thickness, data comparing their diagnostic…
View details →DOI: 10.1038/s41598-026-49444-9 Negative / Null Result ReportOpen accessMedicine
Madini S, Suresh TN, Kattepur AK · 2026 · Cureus
Introduction Epithelial ovarian carcinoma usually has TP53 expression. The TP53 gene is the most frequently mutated gene in ovarian cancer and therapies targeting these mutations may improve treatment outcomes, but there are only few…
View details →DOI: 10.7759/cureus.107496 