Negative / Null Result ReportMedicine
Alsayegh MMA, Sallom BA, Fadel EA et al. · 2026 · Scientific reports
Prenatal exposure to trace metal elements remains a significant public health concern, particularly because these elements can cross the placental barrier and accumulate in fetal tissues. Meconium and neonatal hair are commonly used as…
View details →DOI: 10.1038/s41598-026-54043-9 Negative / Null Result Report
Menxhiqi L, Marinova G · 2026 · Preprint
In a closed-inventory Large Language Model (LLM) system such as Online-CADCOM, which recommends engineering tools from a verified inventory, mention-level hallucination occurs when the model recommends tools not present in the inventory.…
View details →DOI: 10.20944/preprints202606.0008.v1 Failed Experiment Report
Saadawy M, Elkoumi O, Saadawy E · 2026 · Preprint
Abstract Background Glioblastoma (GBM) recurrence originates from the non-resectable invasive margin. While the Mesenchymal (ME) subtype has traditionally been considered the most invasive, this assignment is confounded by tumor purity and…
View details →DOI: 10.21203/rs.3.rs-9716905/v1 Negative / Null Result ReportMedicine
Metrouh O, Bulman J, DeBacker SS et al. · 2026 · Academic radiology
Rationale and objectives This study aimed to evaluate the correlation between Interventional Radiology (IR) trainees' clinical performance during residency and their final National Residency Matching Program (NRMP) rank order list (ROL)…
View details →DOI: 10.1016/j.acra.2026.03.051 Negative / Null Result ReportMedicine
Zakariaei Z, Hosseini SH, Alizadeh-Navaei R et al. · 2026 · BMC infectious diseases
Background The infectious hypothesis of obsessive-compulsive disorder (OCD) has gained traction, with Toxoplasma gondii (T. gondii) proposed as a potential risk factor due to its neurotropic properties and ability to alter neurotransmitter…
View details →DOI: 10.1186/s12879-026-13855-w Negative / Null Result Report
Motamedi N, Singh SB, Gandhi OH et al. · 2026 · Preprint
Objective: Thyroid cartilage calcification and glucose metabolism may vary with age and gender. This study aimed to investigate the role of [18F]-sodium fluoride ([18F]NaF) and 2-[18F]fluoro-2-deoxy-D-glucose ([18F]FDG) PET/CT for the…
View details →DOI: 10.20944/preprints202605.1265.v1 Negative / Null Result ReportMedicine
Grunert M, Horn V, Baudrexl JC et al. · 2026 · European journal of radiology
Background Progressive fibrosing interstitial lung diseases (ILD) continue to have a poor prognosis. To date, there is no imaging method that can reliably detect fibrotic remodeling processes or distinguish between active and dormant…
View details →DOI: 10.1016/j.ejrad.2026.113036 Negative / Null Result ReportMedicine
Afsar E, Sadeghi-Bazargani H, Salehpour F et al. · 2026 · Scientific reports
Traumatic brain injury (TBI) continues to be one of the world's top causes of mortality and long-term disability. It is a severe and frequently fatal disorder. Patients with traumatic brain injury (TBI) not only sustain neurological…
View details →DOI: 10.1038/s41598-026-56795-w Negative / Null Result Report
Hannah JA, Di Liberto GM · 2026 · Preprint
Trust is a critical component of human communication, providing a foundation for understanding, information exchange, and social coordination. Much of the research on trust in speech communication has focused on how vocal characteristics…
View details →DOI: 10.64898/2026.03.11.711118 Negative / Null Result Report
Samal DR, Mendiratta P · 2026 · Preprint
Abstract The CoViD situation globally tested the efficacy of health infrastructure as well as the administrative management of urban areas. This study focuses on the impact of the CoViD-19 pandemic across the nine municipal corporations in…
View details →DOI: 10.21203/rs.3.rs-8799985/v1 Negative / Null Result ReportMedicine
Ruffin JC, Stem CT, Pletzer S et al. · 2026 · Pediatric emergency care
Objective Pediatric heart failure is a rare condition with significant morbidity that requires timely diagnosis and treatment. Mitral valve E-point septal separation (EPSS) may be used as an estimate of systolic function in this…
View details →DOI: 10.1097/pec.0000000000003625 Negative / Null Result ReportMedicine
Hirose R, Matsuura K, Ii Y et al. · 2026 · Journal of neural transmission (Vienna, Austria : 1996)
In Parkinson's disease (PD), neuronal loss occurs in the substantia nigra (SN) and locus coeruleus (LC). Previous studies using neuromelanin-sensitive magnetic resonance imaging (NMI) at 3T MRI have described the measurement methods and…
View details →DOI: 10.1007/s00702-026-03179-z Negative / Null Result ReportMedicine
Öztürk G, Orhon F, Bayrakoğlu D et al. · 2026 · International archives of allergy and immunology
The severity and incidence of invasive pneumococcal infections increase in inborn errors of immunities. However, there are limited number of studies in the literature evaluating pneumococcal antibody levels in patients with a prediagnosis…
View details →DOI: 10.1159/000552296 Negative / Null Result Report
Ferrara M, Maccario V, Fantino S et al. · 2026 · Preprint
This study investigates intracellular (IC) exposure to tenofovir alafenamide (TAF) and its clinical determinants in experienced people living with HIV. We conducted a monocentric retrospective analysis of 86 adults treated with either…
View details →DOI: 10.22541/au.177547173.39036280/v1 Negative / Null Result ReportOpen accessMedicine
Abdelaziz AW, Alkherkhisy MM, El-Sheikh HR et al. · 2026 · BMC psychiatry
Background Lipid metabolism and its regulatory molecules, especially adipokines, have gained significant attention in recent pathogenesis research of autism spectrum disorder (ASD). Aims To evaluate serum fatty acid-binding protein 4…
View details →DOI: 10.1186/s12888-026-08295-4 Negative / Null Result Report
Babadzhanova E, Tilov B, Davcheva D et al. · 2026 · Preprint
Abstract Background Polycystic ovary syndrome (PCOS) is a common endocrine disorder associated with metabolic disturbances, including insulin resistance and obesity, chronic anovulation and impaired fertility. Its pathogenesis is complex…
View details →DOI: 10.21203/rs.3.rs-9598637/v1 Negative / Null Result ReportMedicine
Zhang D, Eurich J, Pitz-Goncalves L et al. · 2026 · Journal of orthopaedic trauma
Objectives To determine the rate of occult vascular abnormalities in high-energy tibial plateau fractures using Computed Tomography Angiography (CTA). Methods Design Prospective Cohort Study. Setting Single Academic Level I Trauma Center.…
View details →DOI: 10.1097/bot.0000000000003215 Negative / Null Result ReportMedicine
Bilen YE, Sinanoğlu N, Külekci Ç · 2026 · European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery
Purpose Total laryngectomy disrupts nasal airflow, often resulting in significant olfactory and gustatory dysfunction. While these sensory losses may adversely affect patients' quality of life and psychological well-being, they typically…
View details →DOI: 10.1007/s00405-025-09855-2 Negative / Null Result ReportMedicine
Akıncıoğlu P, Dağlı Ü, Koca E · 2026 · The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology
Background/aims Inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis, is a chronic inflammatory disorder commonly associated with iron deficiency anemia and anemia of chronic disease. Hepcidin is a key…
View details →DOI: 10.5152/tjg.2026.25774 Negative / Null Result ReportMedicine
Cigdem-Karacay B, Bayramoglu-Demirdogen E, Konar NM et al. · 2026 · Irish journal of medical science
AIM: The effectiveness of EMG-BF in SUI has not yet been proven. This study aimed to the effectiveness of EMG-BF on pelvic floor muscle activity, pad test, severity of complaints, and quality of life in female patients with Stress Urinary…
View details →DOI: 10.1007/s11845-026-04374-3 Negative / Null Result ReportMedicine
Gosset M, Coquart A, Delaval B et al. · 2026 · Journal of strength and conditioning research
Abstract Gosset, M, Coquart, A, Delaval, B, Catalano, J, Huou, G, Boufflers, M, Bozok, D, Bellanger, L, Douchet, T, Viroux, P, Jaffré, C, and Abaïdia, A-E. Compression garments and adaptations to plyometric training in soccer players: A…
View details →DOI: 10.1519/jsc.0000000000005489 Negative / Null Result ReportMedicine
Fernando H, Vito I, Santillan N et al. · 2026 · Journal of neuroendocrinology
As peptide receptor radionuclide therapy (PRRT) maintains a key role in the treatment of neuroendocrine tumours (NETs), there is growing recognition of the importance of evaluating patient-reported health related quality of life (HRQoL).…
View details →DOI: 10.1111/jne.70201 Negative / Null Result ReportMedicine
Shigehara K, Shinzawa R, Sakatoku N et al. · 2026 · International journal of urology : official journal of the Japanese Urological Association
Objectives We assessed the efficacy of testosterone replacement therapy (TRT) combined with exercise on body composition in hypogonadal men. Methods Two hundred-fourteen patients were enrolled. All patients were divided into four groups:…
View details →DOI: 10.1111/iju.70524 Negative / Null Result ReportMedicine
Kassem S, Gressel O, Samuels N et al. · 2026 · Journal of pain and symptom management
Context and objective Integrative oncology (IO) programs address quality of life (QoL)-related concerns within palliative and supportive cancer care. This study examined adherence to and outcomes of an IO program among patients with both…
View details →DOI: 10.1016/j.jpainsymman.2026.05.013 Negative / Null Result ReportMedicine
Yadav R, Shukla U, Yadav U et al. · 2026 · Annals of African medicine
Background Improvement in neurological function has been reported in stroke patients after hyperbaric oxygen therapy (HBOT) administration. Although the majority of spontaneous neurological recovery occurs within the first 90 days…
View details →DOI: 10.4103/aam.aam_804_25 Negative / Null Result ReportMedicine
Zhang Y, Wang J, Hao M et al. · 2026 · Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie
PURPOSE: This proof-of-concept study aimed to detect preliminary signals of efficacy and assess the short-term safety of Esculin and Digitalis glycoside eye drops for the management of presbyopia. METHODS: This study was a 30-day,…
View details →DOI: 10.1007/s00417-026-07184-6 Negative / Null Result ReportMedicine
Bovenberg C, Keeler JL, Cardi V et al. · 2026 · Journal of eating disorders
Background Anorexia nervosa (AN) is a severe psychiatric disorder (ED) with high mortality, marked functional impairment, and substantial phenotypical heterogeneity. Despite extensive research, treatment outcomes remain poor, and it is…
View details →DOI: 10.1186/s40337-026-01632-8 Negative / Null Result ReportMedicine
Abbas Amanat M, Srichana T, Takahashi Yupanqui C et al. · 2026 · Pakistan journal of pharmaceutical sciences
Background Dry mouth is a condition associated with significant morbidity. It not only causes discomfort but also increases risk of many health and oral health problems. Objectives This study compared the efficacy and patient satisfaction…
View details →DOI: 10.36721/pjps.2026.39.5.reg.15179.1 Negative / Null Result ReportMedicine
Rajendiran A, Maharjan A, Gerrard AD et al. · 2026 · Techniques in coloproctology
Introduction Radiofrequency ablation (RFA) for haemorrhoids has emerged as a minimally invasive treatment for grade II-III haemorrhoids, offering reduced postoperative pain and faster recovery compared with conventional surgery. However,…
View details →DOI: 10.1007/s10151-026-03353-1 Negative / Null Result ReportMedicine
Kluckner M, Hitzl W, Enzmann FK et al. · 2026 · Journal of clinical medicine
Background/Objectives : Hyperspectral imaging (HSI) facilitates noninvasive assessment of tissue perfusion in patients with peripheral arterial disease. However, available studies are either based on small cohorts and provide no comparison…
View details →DOI: 10.3390/jcm15041667 