Negative / Null Result ReportMedicine
Ladriñán-Maestro A, Sánchez-Sierra A, Elfoukahi O et al. · 2026 · PloS one
The aim of this study was to evaluate the acute effects of a single session of intermittent hypoxia-hyperoxia exposure on cardiovascular autonomic regulation, blood pressure, and arterial oxygen saturation in sedentary older adults. A…
View details →DOI: 10.1371/journal.pone.0350802 Negative / Null Result Report
Akbeniz A, Baransel ES · 2026 · Preprint
Abstract Aim: This study aimed to evaluate the effects of a Mindfulness-Based Stress Reduction (MBSR) program on premenstrual symptom severity, pre-pregnancy fear of childbirth, and psychological well-being in women experiencing…
View details →DOI: 10.21203/rs.3.rs-9502810/v1 Negative / Null Result ReportMedicine
Ekinci MS, Karci B, Secilmis A · 2026 · The Journal of prosthetic dentistry
Statement of problem The effects of acid exposure on interim crown materials have not been fully elucidated, and comparative data regarding different production methods are limited. Purpose This study investigated the effects of simulated…
View details →DOI: 10.1016/j.prosdent.2026.05.043 Negative / Null Result ReportMedicine
Mastrantonio R, Romantini A, Lombardo C et al. · 2026 · Infection control and hospital epidemiology
Objective Environmental contamination is a significant factor in the transmission of healthcare-associated infections. This study evaluated the effectiveness of gaseous ozone in reducing microbial contamination within hospital settings,…
View details →DOI: 10.1017/ice.2026.10468 Negative / Null Result ReportMedicine
Moutsoglou D, Staley C, Kabage AJ et al. · 2026 · Inflammatory bowel diseases
Background The intestinal microbiota play a key role in Crohn's disease (CD) and postoperative recurrence following ileocecal resection. Microbiota transplant therapy (MTT) could impact postoperative CD recurrence. This study aimed to…
View details →DOI: 10.1093/ibd/izag096 Negative / Null Result ReportMedicine
Uzun E, Ozen S, Senel S et al. · 2026 · BMC urology
Purpose To investigate the factors associated with variant histology (VH) and prognostic significance of VH in urothelial carcinoma (UC) among patients undergoing radical cystectomy (RC) with ileal conduit urinary diversion. Methods A…
View details →DOI: 10.1186/s12894-026-02232-z Negative / Null Result ReportOpen accessMedicine
Toor S, Francis JE · 2026 · The British and Irish orthoptic journal
Introduction Accommodation is most commonly assessed using the RAF Rule. However, this subjective test has multiple sources of error, and an objective measurement of accommodation using Nott dynamic retinoscopy may be a more appropriate…
View details →DOI: 10.22599/bioj.550 Negative / Null Result ReportOpen accessMedicine
El Asfahani IA, Khalifa A, Tawfik D et al. · 2026 · International journal of implant dentistry
Purpose This pilot randomized clinical trial compared peri-implant tissue health around milled cobalt-chromium (CoCr) versus polyether ether ketone (PEEK) secondary telescopic crowns in implant-retained mandibular overdentures over 12…
View details →DOI: 10.1186/s40729-026-00690-6 Negative / Null Result ReportMedicine
Sorkun M, Samancı MY, Peker S et al. · 2026 · Neuroradiology
Background Early assessment of treatment response following radiosurgery in intracranial meningiomas is critical for guiding patient management. Conventional evaluation based on tumor volume may not reliably reflect early treatment…
View details →DOI: 10.1007/s00234-026-04067-9 Negative / Null Result ReportOpen accessMedicine
Harrington NE, Allen F, Garcia Maset R et al. · 2026 · Microbiology (Reading, England)
The opportunistic pathogen Pseudomonas aeruginosa forms biofilm infections in the lungs of people with the genetic condition cystic fibrosis (CF) that can persist for decades. There are numerous P. aeruginosa lifestyle changes associated…
View details →DOI: 10.1099/mic.0.001678 Negative / Null Result ReportOpen accessMedicine
Khwanes SA, Mohamed RA, Abd El-Rahman HA et al. · 2026 · Scientific reports
Imidacloprid (IM), a systemic neonicotinoid pesticide, is widely used globally due to its high effectiveness against a broad range of insects at minimal application rates. The current study aimed to examine how this insecticide can induce…
View details →DOI: 10.1038/s41598-026-48767-x Negative / Null Result Report
Riyadi S, Lestari AD, Yati D · 2026 · Preprint
Abstract Background Cough is a common minor illness often managed through self-medication. Among adolescents, inadequate medication literacy may lead to inappropriate drug selection and use, while evidence on structured school-based…
View details →DOI: 10.21203/rs.3.rs-9606865/v1 Negative / Null Result ReportMedicine
Okuda DT, Stanley TA, McCreary MC et al. · 2026 · AJNR. American journal of neuroradiology
Background and purpose Neuromyelitis optica spectrum disorder (NMOSD) is a chronic condition driven by selective injury to aquaporin 4 (AQP4) channels. Accurate diagnosis and effective disease surveillance are critical to preventing…
View details →DOI: 10.3174/ajnr.a9371 Negative / Null Result ReportMedicine
Siggard LD, Rytter D, Lildholdt T · 2026 · Acta oto-laryngologica
Tongue-tie may interfere with infant feeding, but diagnosis remains challenging due to lack of objective criteria. To evaluate the clinical utility of the electronic baby bottle (EBB), a novel device recording intraoral forces during…
View details →DOI: 10.1080/00016489.2026.2688878 Negative / Null Result ReportMedicine
Abdalqadir M, Raouf L, Mohammed K et al. · 2026 · Polymers
This study aimed to investigate the effect of time and different disinfecting agents on nanocomposite filler composed of natural clay nanoparticles (modified and non-modified) added to maxillofacial silicone elastomers and readymade…
View details →DOI: 10.3390/polym18050636 Negative / Null Result ReportMedicine
Gulec A, Eravsar E, Ciftci S et al. · 2026 · Journal of clinical medicine
Background : UBE has gained popularity as a minimally invasive alternative to open spinal procedures. However, it raises concerns about potential ocular complications. Despite these concerns, there is a lack of studies evaluating UBE's…
View details →DOI: 10.3390/jcm15051774 Negative / Null Result ReportMedicine
Nicola-Ducey L, Ward L, Holland A et al. · 2026 · Urogynecology (Philadelphia, Pa.)
Importance Prior to delivery, there are postpartum pelvic floor recovery topics to provide education on; however, because of a variety of factors, the majority of these are commonly unaddressed, leaving a patient unknowledgeable and…
View details →DOI: 10.1097/spv.0000000000001661 Negative / Null Result ReportMedicine
Ying Z, Kondo A, De D et al. · 2026 · Journal of transcultural nursing : official journal of the Transcultural Nursing Society
Introduction We evaluated a Collaborative Online International Learning (COIL) programme in enhancing nursing students' intercultural sensitivity and understanding of cultural safety. Methods From April to May 2024, nursing students in…
View details →DOI: 10.1177/10436596261452389 Negative / Null Result ReportMedicine
Dutta P, Verma S, Patni P et al. · 2026 · The British journal of ophthalmology
Automated pupillometry (AP) has been studied in established optic neuropathies. This prospective, sequential AP evaluation of 62 newly diagnosed adult patients with pulmonary/extra-pulmonary tuberculosis, showed a statistically significant…
View details →DOI: 10.1136/bjo-2025-328575 Negative / Null Result ReportMedicine
Zhang H, Zhao Y · 2026 · Pakistan journal of pharmaceutical sciences
Background Narlumosbart is a key agent for modulating bone cell function. Given the potential of curcumin nanoparticles to inhibit cell growth when applied alone. Objectives This study aims to investigate the role of their combination with…
View details →DOI: 10.36721/pjps.2026.39.7.196.1 Negative / Null Result ReportMedicine
Shaju A, Mishra BR, Mohapatra D et al. · 2026 · Journal of psychopharmacology (Oxford, England)
BackgroundRecent evidence increasingly links schizophrenia to mitochondrial dysfunction, implicating altered mitochondrial respiratory and metabolic processes in its pathophysiology. Preclinical data suggest that atypical antipsychotics…
View details →DOI: 10.1177/02698811261453937 Negative / Null Result ReportMedicine
Le Basle Y, Sautou V, Sarraute S et al. · 2026 · Biomedical materials (Bristol, England)
The study of extractable chemicals is used to evaluate whether a medical device contains harmful substances susceptible to migrate and contaminate the patients they are used in. The analysis of the biomaterial itself after extraction is…
View details →DOI: 10.1088/1748-605x/ae7523 Negative / Null Result ReportMedicine
Yılmaz T, Özdemir S · 2026 · Heart & lung : the journal of critical care
Background Norepinephrine is widely used as a first-line vasopressor in acute hypotension and septic shock. Its acute effects on electrocardiographic (ECG) parameters, particularly the frontal QRS-T angle, remain unclear. Objectives To…
View details →DOI: 10.1016/j.hrtlng.2026.102742 Negative / Null Result ReportMedicine
Wentink N, van Gent M, Borns C · 2026 · The British journal of radiology
Objectives To quantify the reduction in effective dose achieved through organ dose modulation (ODM) on a General Electric Revolution Apex CT scanner, while preserving image quality. Methods First, the noise index (NI) corresponding to…
View details →DOI: 10.1093/bjr/tqag098 Negative / Null Result Report
Pomierska M, Milska-Musa KA · 2026 · Preprint
Introduction: Pregnancy comes with many physical and mental changes, which can affect one’s sexual satisfaction, body image and general well-being. The aim of the study was to analyse these variables.Material and methods: The study was…
View details →DOI: 10.31234/osf.io/pbfzg_v2 Negative / Null Result ReportMedicine
Abid R, Murphy RF, Hogue GD et al. · 2026 · Journal of pediatric orthopedics
Background Treatment options for early-onset scoliosis (EOS) are confounded by the risks associated with intervention at a younger age. Spinal instrumentation must be considered carefully due to potentially adverse effects to the spine,…
View details →DOI: 10.1097/bpo.0000000000003199 Negative / Null Result ReportOpen accessMedicine
Hooper L, Erridge S, Clarke E et al. · 2026 · Brain and behavior
Introduction Migraine is a primary headache disorder, which leads to diminished health-related quality of life (HRQoL). There is limited evidence assessing efficacy of cannabis-based medicinal products (CBMPs) for migraine. This study…
View details →DOI: 10.1002/brb3.71323 Negative / Null Result Report
Kato T, Motokawa T, Seto S et al. · 2026 · Preprint
Abstract Background Smartphone-based mental health applications are increasingly used for stress self-management; however, evidence from real-world settings remains limited, particularly for interventions combining subjective and…
View details →DOI: 10.21203/rs.3.rs-9668590/v1 Negative / Null Result ReportMedicine
Chaudhary H, Saeed S, Carroll A · 2026 · Irish medical journal
Aim This retrospective study aimed to evaluate changes in body mass index (BMI) and haemoglobin A1c (HbA1c) levels among children and adolescents with type 1 diabetes mellitus (T1DM) transitioning from multiple daily injections (MDI) to…
Negative / Null Result ReportMedicine
Fuse Y, Tsukada N, Yamaguchi M et al. · 2026 · Biological trace element research
Adequate iodine intake is essential for maintaining thyroid function. School meal iodine content (SMIC) is one of the main sources of iodine for schoolchildren. The median urinary iodine concentration (mUIC) in spot urine samples is a…
View details →DOI: 10.1007/s12011-026-05183-6 