Negative / Null Result ReportMedicine
Bourdin A, Dureau S, Algret N et al. · 2026 · Retina (Philadelphia, Pa.)
Purpose To report safety outcomes of transscleral fine-needle aspiration biopsy (FNAB) followed by irradiation for uveal melanoma (UM) in a tertiary ocular oncology center over 10 years, and assess whether FNAB modified the overall…
View details →DOI: 10.1097/iae.0000000000004906 Negative / Null Result ReportMedicine
Velez T, Badaki-Makun O, Hirsch D et al. · 2026 · International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases
Objective Early identification of mortality risk in critically ill children with suspected infection remains challenging. Whether severity scores (SIRS, pSOFA, Phoenix) add incremental value beyond data-derived physiologic features in…
View details →DOI: 10.1016/j.ijid.2026.108899 Negative / Null Result ReportMedicine
Al-Ibraheem A, Moghrabi S, Alsyouf B et al. · 2026 · Cancers
Background : [ 68 Ga]Ga-FAPI PET/CT demonstrates high sensitivity for tumor detection but limited specificity because benign fibro-inflammatory conditions may also show tracer uptake. Dual-time-point imaging has been proposed to improve…
View details →DOI: 10.3390/cancers18121963 Negative / Null Result ReportMedicine
Embry KR, Jayaraman C, Yang C et al. · 2026 · Journal of neuroengineering and rehabilitation
Background Powered knee and ankle prostheses generate mechanical energy to replicate biological leg function, yet direct comparisons with more commonly prescribed microprocessor-controlled knee prostheses are limited by methodological…
View details →DOI: 10.1186/s12984-026-02042-2 Negative / Null Result ReportMedicine
Herrera-Elizondo JL, Jiménez-Castillo RA, García-Compeán D et al. · 2026 · Revista de gastroenterologia de Mexico (English)
Introduction and aims The usefulness of metoclopramide for improving endoscopic visualization in upper gastrointestinal bleeding (UGIB) is controversial. Our primary aim was to evaluate the utility of metoclopramide 20 mg/IV for endoscopic…
View details →DOI: 10.1016/j.rgmxen.2026.05.005 Negative / Null Result ReportMedicine
Tamura T, Abe S, Matsui H et al. · 2026 · Journal of affective disorders
Background Dopaminergic dysfunction has been implicated in major depressive disorder (MDD), but dopamine transporter (DAT) imaging studies using conventional mean binding have yielded inconsistent findings. One possible contributor is that…
View details →DOI: 10.1016/j.jad.2026.122099 Negative / Null Result ReportMedicine
Naghizade B, Özyazgan İ, Bozkurt F et al. · 2026 · Journal of plastic, reconstructive & aesthetic surgery : JPRAS
Background Autologous fat grafting is widely used in plastic surgery, but graft survival remains unpredictable, particularly under compromised conditions such as cigarette smoking. Smoking impairs microcirculation and tissue oxygenation,…
View details →DOI: 10.1016/j.bjps.2026.05.060 Negative / Null Result ReportMedicine
Taylor-Williams O, Nossent J, Inderjeeth CA · 2026 · The Journal of rheumatology
Objective Rheumatoid arthritis (RA) is a potentially devastating autoimmune disease associated with multiple comorbidities, including osteoporosis and cardiovascular disease, which exert significant morbidity and mortality burdens. Despite…
View details →DOI: 10.3899/jrheum.2025-0635 Negative / Null Result ReportMedicine
Song BM, Ford CA, Schneider AM et al. · 2026 · The Journal of arthroplasty
Background Inflammatory arthritis (IA) has been considered an absolute indication for patellar resurfacing (PR) in total knee arthroplasty (TKA), yet limited data supports this. The purpose of this study was (1) to compare outcomes of TKA…
View details →DOI: 10.1016/j.arth.2026.04.094 Negative / Null Result Report
Seo S, Lee S, Lee N et al. · 2026 · Preprint
Choice overload occurs when an ever-growing number of options impairs decision quality, because evaluating options taxes cognitive resources. We investigated whether reducing cognitive demand could mitigate overload by encouraging greater…
View details →DOI: 10.64898/2026.02.19.706731 Negative / Null Result ReportMedicine
Sileika E, Cerkauskaite D, Bausys A et al. · 2026 · International journal of colorectal disease
Background The optimal interval between neoadjuvant chemoradiotherapy (nCRT) and total mesorectal excision (TME) in locally advanced rectal cancer (LARC) remains controversial. This randomized controlled trial evaluated whether prolonging…
View details →DOI: 10.1007/s00384-026-05144-4 Negative / Null Result ReportMedicine
Blackman J, Friesen D, Sikkel MB et al. · 2026 · Applied clinical informatics
Objectives The objective of this study is to evaluate whether ChatGPT models can reliably apply the DISCERN instrument, a 16-question human-scored rubric developed in 1999 to evaluate consumer health information, and assess the impact of…
View details →DOI: 10.1055/a-2853-8892 Negative / Null Result ReportMedicine
Stewart KM, Sawicki GS, Young AJ et al. · 2026 · Journal of biomechanics
Individuals post-stroke with hemiparetic gait often experience impaired mobility, which can be restored using powered exoskeletons. Specifically, hip exoskeletons can deliver positive work to the leg to help initiate leg swing; however, it…
View details →DOI: 10.1016/j.jbiomech.2026.113259 Negative / Null Result ReportMedicine
Norling M, Eriksson N, Westerberg E et al. · 2026 · Muscle & nerve
Introduction/aims Physical activity and sleep influence fatigue in myasthenia gravis (MG), and digital health technologies (DHT) enable objective monitoring of these behaviors in daily life. Using this approach, we evaluated whether a…
View details →DOI: 10.1002/mus.70234 Negative / Null Result Report
Amir H, Martini A, Médevielle V et al. · 2026 · Preprint
The rehabilitation of mine-impacted areas through ecological restoration can ensure long-term ecosystem resilience by reestablishing at least part of the original biodiversity. In New Caledonia, large surfaces of mined land need to be…
View details →DOI: 10.22541/au.176826796.62402425/v1 Negative / Null Result ReportMedicine
Orlowska M, Saleh MHA, Decker A et al. · 2026 · Journal of periodontology
Background This randomized controlled trial aims to evaluate alveolar ridge preservation (ARP) with or without a biologically active amnion-chorion membrane (BACM). Methods Thirty patients requiring tooth extraction in the esthetic zone…
View details →DOI: 10.1002/jper.70094 Negative / Null Result ReportMedicine
Nehme Z, Mahony E, Nehme E et al. · 2026 · Resuscitation
Aim To determine whether defibrillation with manual pressure augmentation (MPA) reduces transthoracic impedance and improves cardioversion and survival from initially shockable out-of-hospital cardiac arrest (OHCA) compared with standard…
View details →DOI: 10.1016/j.resuscitation.2026.111121 Negative / Null Result ReportMedicine
Betat A, Santos VD, Oliveira CGA et al. · 2026 · Journal of hypertension
Background Arterial hypertension has been linked to cognitive decline, potentially through cerebrovascular alterations and associations with Alzheimer's disease. A positive correlation between elevated serum cholesterol levels and…
View details →DOI: 10.1097/hjh.0000000000004277 Negative / Null Result ReportMedicine
Hongoro DJ, Kengne AP, Peer N et al. · 2026 · AIDS and behavior
Mobile health (mHealth) interventions offer scalable support for adherence and self-management, yet their effects on health-related quality of life (HRQoL) among people living with HIV (PLWH) and comorbid hypertension remain unclear. We…
View details →DOI: 10.1007/s10461-026-05128-z Negative / Null Result ReportMedicine
Yamamoto K, Shinno N, Omori T et al. · 2026 · Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association
Background Older patients undergoing gastrectomy frequently exhibit sarcopenia and reduced physiologic reserve, increasing vulnerability to perioperative muscle loss. However, randomized evidence supporting multimodal exercise-nutrition…
View details →DOI: 10.1007/s10120-026-01747-6 Negative / Null Result ReportMedicine
Dachy G, Mooyaart JE, Gabellier L et al. · 2026 · Bone marrow transplantation
Lymphodepleting conditioning (LD) with fludarabine and cyclophosphamide is critical to ensure optimal expansion and persistence of CD19 CAR T-cells. We conducted a retrospective EBMT registry study to assess the impact of fludarabine…
View details →DOI: 10.1038/s41409-026-02925-x Negative / Null Result ReportMedicine
Nasr MH, Abdulrasool Hassan B, Othman N et al. · 2026 · Journal of pharmaceutical policy and practice
Background Vitamin D deficiency is common among individuals with type 2 diabetes mellitus (T2DM) and has been linked to insulin resistance and poor glycaemic control. However, findings from randomised controlled trials remain inconsistent.…
View details →DOI: 10.1080/20523211.2026.2680824 Negative / Null Result ReportMedicine
Zorko K, Munda A, Janež A et al. · 2026 · American journal of obstetrics and gynecology
Background Self-monitoring of blood glucose represents the standard for glycemic monitoring in gestational diabetes mellitus, while the role of continuous glucose monitoring remains uncertain. Objective To assess whether adjunctive flash…
View details →DOI: 10.1016/j.ajog.2026.03.030 Negative / Null Result ReportMedicine
Kunz Coyne AJ, Gray R, Gonnabathula P et al. · 2026 · The Journal of antimicrobial chemotherapy
Background Stenotrophomonas maltophilia complex infections are difficult to treat because of intrinsic resistance mediated by the L1 metallo-β-lactamase and L2 serine β-lactamase. Although aztreonam/avibactam is clinically available,…
View details →DOI: 10.1093/jac/dkag177 Negative / Null Result ReportMedicine
Peretz-Kahlon M, Wood K, Harris A et al. · 2026 · Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie
BACKGROUND: Branch retinal vein occlusion (BRVO) frequently results in macular edema (ME), impairing visual acuity (VA). Intravitreal anti-vascular endothelial growth factor (VEGF) injections are standard first-line therapy but the benefit…
View details →DOI: 10.1007/s00417-026-07227-y Negative / Null Result ReportMedicine
Mustafa YH, Keogh RJ, Barry SL et al. · 2026 · Irish journal of medical science
Background Glioblastoma is the most common malignant brain tumour in adults and carries a poor prognosis despite advances in molecular characterisation and therapy. The 2021 World Health Organisation classification redefined glioblastoma…
View details →DOI: 10.1007/s11845-026-04449-1 Negative / Null Result ReportMedicine
Arije D, Bista P, Gautam S et al. · 2026 · Field Crops Research.
Cultivated soils in arid and semi-arid regions are vulnerable to soil organic carbon (SOC) loss due to variable crop yields, residue removal, and frequent fallowing. Replacing fallow periods with cover crops has been promoted to increase…
Negative / Null Result ReportMedicine
Yi Y, Yano K · 2025 · Physiologia plantarum
Elevated CO 2 (eCO 2 ) can enhance plant growth, but it may also accelerate senescence, which could offset the growth benefits. Phosphorus (P) supply can enhance the photosynthetic rate under eCO 2 conditions and promote biomass…
View details →DOI: 10.1111/ppl.70470 Negative / Null Result Report
Liang H, Zhang D, An X et al. · 2026 · Preprint
Abstract The rise of generative AI (GenAI) has sparked interest in whether human-AI collaboration can enhance creativity, yet empirical findings remain mixed. This study systematically compared 4 collaboration models (i.e., AI-first,…
View details →DOI: 10.21203/rs.3.rs-8774138/v1 Negative / Null Result ReportMedicine
Gupta N, Seo J, Phan F et al. · 2026 · Heart rhythm
Background Lead dwell time (DT) is associated with increased complexity of cardiac implantable electronic device (CIED) extraction. Optimal strategies for risk mitigation are not well studied. Objective This study aimed to evaluate the…
View details →DOI: 10.1016/j.hrthm.2026.04.025 