Negative / Null Result ReportOpen accessMedicine
Tayebi SM, Mirzaei M, Stout JR · 2026 · Journal of the International Society of Sports Nutrition
Purpose High-intensity judo bouts induce oxidative stress and muscle damage, impairing recovery. This randomized, double-blind, placebo-controlled pilot trial examined whether acute β -hydroxy- β -methylbutyrate free acid (HMB-FA)…
View details →DOI: 10.1080/15502783.2026.2665962 Negative / Null Result ReportMedicine
Dhakal S, Tiwari N · 2026 · Scientific reports
The integration of 3D printing technology in construction has gained significant attention due to its potential to utilize sustainable, earth-based materials. This innovative approach offers a fast, cost-effective, and environmentally…
View details →DOI: 10.1038/s41598-026-58138-1 Negative / Null Result ReportOpen accessMedicine
Aitynova A, Dyusebaeva M, Issayeva D et al. · 2026 · Molecules (Basel, Switzerland)
A phytopreparation based on the CO 2 extract of Arctium tomentosum Mill. root (AT) was evaluated for its safety and anti-inflammatory potential in Swiss albino mice. Acute and 28-day subacute oral toxicity studies demonstrated that AT, at…
View details →DOI: 10.3390/molecules31111900 Negative / Null Result Report
Demirkıran B, Melekoglu T, Żurek G · 2026 · Preprint
Purpose: This study examined the acute effects of High-Intensity Interval Training (HIIT) and prolonged endurance training (ET) on heart rate variability (HRV) in elite Greco-Roman wrestlers. A secondary aim was to assess the usefulness of…
View details →DOI: 10.20944/preprints202605.0021.v1 Negative / Null Result Report
Barnes-Scheufler C, Yalçın M, Rösler L et al. · 2026 · Preprint
Abstract Deficits in visuospatial working memory (WM) have been consistently reported in both persons with schizophrenia (PSZ) and bipolar disorder (PBD). In healthy controls (HCS), WM typically declines with age; however, it remains…
View details →DOI: 10.21203/rs.3.rs-9514584/v1 Negative / Null Result ReportMedicine
Huang H, Smets C, Chen L et al. · 2026 · Brain stimulation
Background Transcranial focused ultrasound stimulation (TUS) has emerged as a promising tool for noninvasive neuromodulation. However, the specific effects of stimulation parameters on neural activity remain incompletely understood.…
View details →DOI: 10.1016/j.brs.2026.103145 Negative / Null Result Report
Akudey PM, Tutu-Boahene B, Owusu SO et al. · 2026 · Preprint
Abstract This study investigates the conditional effect of firm resilience on the relationship between social capital and business continuity among Ghanaian vegetable agribusinesses, anchored in Network Theory and Dynamic Capabilities…
View details →DOI: 10.21203/rs.3.rs-9388284/v1 Negative / Null Result Report
Singh SS · 2026 · Preprint
This study examines the relationship between capital structure and financial performance amongst firms constituting the Dow Jones Industrial Average (DJIA) over the period 2009 to 2020. Utilising secondary data from the Bloomberg database…
View details →DOI: 10.20944/preprints202604.0155.v1 Negative / Null Result ReportMedicine
Wang WH, Lin DH · 2026 · Current opinion in nephrology and hypertension
Purpose of review Angiotensin-II plays an important role in regulating thiazide-sensitive Na-Cl-cotransporter (NCC) encoded by Slc12A3. Moreover, inwardly-rectifying-K+ (Kir) channels 4.1/Kir5.1 encoded by Kcnj10 and Kcnj16 have been shown…
View details →DOI: 10.1097/mnh.0000000000001203 Negative / Null Result ReportMedicine
Tan Y, Liu S, Zang L · 2026 · BMC psychology
Background Future anxiety may be relevant to academic burnout among university students, but its short-term temporally ordered association with burnout and the cognitive processes involved remain unclear. This study tested whether brooding…
View details →DOI: 10.1186/s40359-026-04933-4 Negative / Null Result ReportMedicine
Dias CS Jr, Verona AP, Leocádio V · 2026 · Journal of religion and health
This study examines the relationship between religious denomination, religious attendance, and mammography screening among White and Black women in Brazil, using baseline data from the Brazilian Longitudinal Study of Aging (ELSI-Brazil,…
View details →DOI: 10.1007/s10943-026-02694-3 Negative / Null Result ReportMedicine
Acuña J, Barnhart MD, Kennedy SC et al. · 2026 · Veterinary and comparative orthopaedics and traumatology : V.C.O.T
To evaluate the effect of a 3.5 mm tibial plateau leveling osteotomy (TPLO) locking compression plate on serial postoperative tibial plateau angle (TPA) maintenance, short-term osteotomy healing, and complication rates in dogs weighing 45…
View details →DOI: 10.1055/a-2865-3650 Negative / Null Result ReportOpen accessMedicine
Sztechman D, Zera T, Czarzasta K et al. · 2025 · Physiological reports
In the present study, we aimed at elucidating whether exposure to chronic stress affects the expression of cardiac mineralocorticoid receptors (MRs), whether it influences cardiac structure and function, and whether MRs blockade attenuates…
View details →DOI: 10.14814/phy2.70549 Negative / Null Result Report
Xuhua H, Bakpa EK, Yeboah JA · 2026 · Preprint
This paper examines the dynamic relationship between innovation, total factor productivity (TFP), and economic growth in Ghana using annual data for the period 1965–2021. Although Ghana has recorded relatively strong economic growth,…
View details →DOI: 10.20944/preprints202604.1738.v1 Negative / Null Result ReportMedicine
Ormancı N, Bölükbaş B, Waqas M et al. · 2026 · Biological trace element research
This study evaluated the metabolic and mineral profiles in the blood serum of Simmental dairy cows during the transition period to assess their energy, protein, and mineral status. A total of 78 cows from 10 farms in Samsun Province were…
View details →DOI: 10.1007/s12011-026-04984-z Negative / Null Result ReportOpen accessMedicine
Osipovė K, Maldonytė L, Lukšys D et al. · 2026 · Journal of clinical medicine
Background : The bond strength of orthodontic tubes to the enamel surface is essential for maintaining appliance stability, especially due to high masticatory forces on molars. Strong adhesion reduces the need for rebonding, shortening…
View details →DOI: 10.3390/jcm15020579 Negative / Null Result ReportMedicine
Zuiderwijk M, Groene S, Lopriore E et al. · 2026 · Clinical and experimental pediatrics
Background Neonates born small for gestational age (SGA) are at an increased risk of multiple severe complications, including infections. This suggests that immune cells and other peripheral blood cells may be affected. Purpose Here we…
View details →DOI: 10.3345/cep.2025.02978 Negative / Null Result ReportMedicine
Şengüllendi MF · 2026 · Journal of health organization and management
Purpose In recent years, the migration of healthcare professionals from developing countries to developed countries has accelerated. Türkiye is one of the countries negatively affected by the migration of healthcare professionals. This…
View details →DOI: 10.1108/jhom-08-2024-0352 Negative / Null Result ReportMedicine
Williams AE, Denaro K · 2026 · CBE life sciences education
Students often choose to study for exams with friends. Since active learning in class boosts success, instructors might expect studying with peers to also help. However, research offers little support for this. We investigated whether…
View details →DOI: 10.1187/cbe.25-04-0074 Negative / Null Result ReportMedicine
Can MB, Kara A, Adigüzel MC et al. · 2026 · British poultry science
1. Following the ban on prophylactic antibiotic use in feed for poultry, interest in natural alternatives has increased, particularly plant-derived extracts. In this study, the effects of Aronia melanocarpa fruit extract (AMF) on growth…
View details →DOI: 10.1080/00071668.2026.2673525 Negative / Null Result ReportOpen accessMedicine
Bregulla M, Packheiser J, Merz CJ et al. · 2026 · Scientific reports
Episodic memories can be shaped by various contextual factors. While social and sensory cues such as odors and music have been shown to influence encoding and retrieval, the role of tactile information remains unclear. In this…
View details →DOI: 10.1038/s41598-026-43969-9 Negative / Null Result ReportOpen accessMedicine
Marinello WP, Zylka MJ · 2026 · Frontiers in toxicology
Introduction Per- and polyfluoroalkyl substances (PFAS), particularly perfluorooctanoic acid (PFOA), are persistent environmental contaminants known for bioaccumulation and adverse health effects, including neurodevelopmental toxicity.…
View details →DOI: 10.3389/ftox.2026.1814052 Negative / Null Result ReportMedicine
Parhizmeymandi N, Azimi R, Sanjari MA et al. · 2026 · Motor control
Muscular fatigue often induces compensatory adjustments-such as increased motor unit recruitment and synchronization-that can elevate kinematic variability. By contrast, mental fatigue alters top-down neural control, modulates…
View details →DOI: 10.1123/mc.2025-0092 Negative / Null Result Report
McGlynn M, Steffes LC, Shah A et al. · 2026 · Preprint
Pulmonary arterial hypertension is a progressive, fatal disease driven by pathologic vascular remodeling including arterial medial hypertrophy, occlusive neointimal lesion formation, and venous muscularization. Current vasodilatory…
View details →DOI: 10.64898/2026.05.05.723006 Negative / Null Result Report
Albanna RH, El-Farraj H, Awawdeh S et al. · 2026 · Preprint
Abstract Apical debris extrusion is an unavoidable phenomenon; however, evidence remains limited regarding the effect of newer motion kinematics, specifically counterclockwise optimum torque reverse (CCW OTR). Sixty-six mandibular molars…
View details →DOI: 10.21203/rs.3.rs-9615788/v1 Negative / Null Result Report
Skondras EV, Kamalakidis SN, Skondra E et al. · 2026 · Preprint
Implant-supported overdentures improve denture retention and patient satisfaction, but debonding of attachment housings from the denture base remains a frequent prosthetic complication. This in vitro study evaluated the influence of…
View details →DOI: 10.20944/preprints202604.2236.v1 Negative / Null Result ReportMedicine
Belenger M, Dumont C, Geelhand P et al. · 2026 · Journal of speech, language, and hearing research : JSLHR
Purpose We investigated sex differences in the production of pauses in autistic (pre-)adolescents in two conversational contexts: a monologue and an interactive discussion. Method This study included 107 French-speaking participants ( M…
View details →DOI: 10.1044/2026_jslhr-25-00565 Negative / Null Result ReportMedicine
Zhang M, Chai X, Zhang X et al. · 2026 · Annals of hematology
Chimeric antigen receptor T cells (CAR-T cells) have been widely applied in hematologic malignancies. It has shown limited efficacy in the treatment of myeloid neoplasms. We retrospectively analyzed the safety and efficacy of CD123 CAR-T…
View details →DOI: 10.1007/s00277-026-07097-8 Negative / Null Result Report
Seeger J, Henke NA · 2026 · Preprint
Astaxanthin can be derived from different sources such as petrochemical synthesis, natural sourcing from green algae or by microbial fermentation. As one of the strongest antioxidants known by nature, astaxanthin is rising attention as an…
View details →DOI: 10.20944/preprints202603.1409.v1 Negative / Null Result ReportMedicine
Lengerli Efe A, Özen Sütüven E, Uçar Y et al. · 2026 · International journal of computerized dentistry
Aim The aim was to evaluate the effect of hydrogen peroxide disinfectant exposure for 60 minutes -representing the longest exposure time recommended for achieving the widest antimicrobial spectrum- on the flexural strength (FS) of…
View details →DOI: 10.3290/j.ijcd.b7003304 