Negative / Null Result Report
J D, J JA, S S et al. · 2026 · Preprint
Abstract Objective To analyze intraoperative metabolic parameters from carbon dioxide during cardiopulmonary bypass (CPB) and their association with postoperative hyperlactatemia in elective cardiac surgery. Methods This study observed 26…
View details →DOI: 10.21203/rs.3.rs-9702308/v1 Negative / Null Result ReportMedicine
Özcan Ulubeli P, Aydoğan Z, Karakaya Gojayev E et al. · 2026 · Folia phoniatrica et logopaedica : official organ of the International Association of Logopedics and Phoniatrics (IALP)
Introduction This study aimed to evaluate pain complaints, as well as voice and swallowing functions, in professional voice users, and to compare the effectiveness of three therapeutic approaches: vocal hygiene (VH), vocal function…
View details →DOI: 10.1159/000550481 Negative / Null Result ReportMedicine
Wang X, Xu Y, Lin X et al. · 2026 · Scientific reports
Left ventricular-arterial (V-A) coupling is a key determinant of cardiovascular performance, which integrates intrinsic myocardial contractility with ventricular afterload. Septic shock frequently disrupts this coupling, and norepinephrine…
View details →DOI: 10.1038/s41598-026-56605-3 Negative / Null Result ReportMedicine
Maisto A, Sanders RGP, de Hemptinne A et al. · 2026 · Ultrasonics
In this work, we combine acoustic streaming measurements, direct vibration measurements and the theory of wave dispersion to interpret changes in acoustic streaming. The vibration dynamics of the PZT are studied under frequency sweeping…
View details →DOI: 10.1016/j.ultras.2026.108182 Negative / Null Result Report
Pintus E, Scaringi M, Engelen J et al. · 2026 · Preprint
Impaired seminal redox balance is a main factor that contributes to male fertility disorders and reduced sperm survival during storage. Although several methods are available to measure antioxidant and reactive oxygen species (ROS) levels,…
View details →DOI: 10.64898/2026.05.21.726780 Negative / Null Result ReportMedicine
Kotenko O, Kozlovskaya N, Emirova K et al. · 2026 · Nephron
Background The objective of a multicentre, prospective, observational study of an eculizumab biosimilar (Elizaria®) was to analyse the efficacy and safety of long-term complement inhibitor therapy in patients with atypical haemolytic…
View details →DOI: 10.1159/000552914 Negative / Null Result Report
Tao J, Cheng D, Wang N · 2026 · Preprint
Abstract Background Fluid retention and the obesity paradox often mask true muscle wasting in patients with proteinuric chronic kidney disease (CKD), and conventional quantity-based metrics such as body mass index or cross-sectional tissue…
View details →DOI: 10.21203/rs.3.rs-9335582/v1 Negative / Null Result ReportMedicine
Joswig H, Oreizi-Esfahani S, Medack S et al. · 2026 · World neurosurgery
Background Parkinson's disease (PD) is a neurodegenerative disorder characterized by the loss of dopaminergic neurons in the substantia nigra, resulting in motor and nonmotor symptoms including diminished sleep quality and altered dream…
View details →DOI: 10.1016/j.wneu.2026.124816 Negative / Null Result ReportOpen accessMedicine
Raza GS, Jokelainen J, Stenbäck V et al. · 2026 · PloS one
Physical activity (PA) has numerous positive health effects, including improvements in cognitive function. PA stimulates the release of glycosylphosphatidylinositol-specific phospholipase D1 (GPLD1) from the liver, resulting in hippocampal…
View details →DOI: 10.1371/journal.pone.0349883 Negative / Null Result ReportMedicine
Esen Öksüzoğlu M, Kabukçu HO · 2026 · BMC psychiatry
Background Sleep terror (ST) is a common NREM parasomnia in early childhood and may be associated with broader emotional and behavioral dysregulation. However, its links with psychopathological symptoms and nutritional biomarkers remain…
View details →DOI: 10.1186/s12888-026-08298-1 Negative / Null Result Report
Agarwal P, Thapa M, Karki P · 2026 · Preprint
Abstract Background Increase in IOP after Vitreoretinal surgery is uncommon but sight threatening complication. This study aims to determine the incidence and risk factors of intraocular pressure (IOP) elevation following vitreoretinal…
View details →DOI: 10.21203/rs.3.rs-9509509/v1 Negative / Null Result ReportMedicine
Tcherner S, Durom E, Peters J et al. · 2026 · COPD
In patients with moderate-to-severe COPD, airway mucus-occlusions correlate with airflow limitation, exacerbation and mortality-risk. However, the clinical relevance of mucus-plugs in milder COPD is not well-understood. We evaluated…
View details →DOI: 10.1080/15412555.2026.2681969 Negative / Null Result ReportMedicine
Huang F, Chen K · 2026 · Human factors
ObjectiveThis study investigated how affective characteristics of interruptions (valence and arousal) influence task resumptions and post-interruption performance in younger and middle-aged/older adults under different task…
View details →DOI: 10.1177/00187208261446106 Negative / Null Result Report
Sevahil D · 2026 · Preprint
The aim of this study was to examine the causal pathways from prosocial behavior to well-being in different grades of primary school children. We assessed for whether family support andpeer acceptance mediate this relationship, along to…
View details →DOI: 10.31234/osf.io/nyahz_v1 Negative / Null Result ReportMedicine
Steen AV, Simmering JA, Perik M et al. · 2026 · BJOG : an international journal of obstetrics and gynaecology
Objective To determine the anatomical effect of pessaries in the upright position in women with pelvic organ prolapse (POP). Design Prospective observational cohort study. Setting Outpatient clinic of our gynaecology department. Population…
View details →DOI: 10.1111/1471-0528.70280 Negative / Null Result ReportMedicine
Rawat R, Abrahamson CW, Rogers K et al. · 2026 · The Laryngoscope
Objectives To evaluate the effects of swallowing therapy and cricopharyngeus (CP) muscle surgery on upper esophageal sphincter (UES) opening, oral intake, and airway protection in patients with absent UES opening following neurological…
View details →DOI: 10.1002/lary.70630 Negative / Null Result ReportOpen accessMedicine
Pitimada M, Chiumello D, Monte A et al. · 2026 · Journal of robotic surgery
To evaluate changes in acid-base equilibrium in plasma and urine according to the Stewart’s approach, in gas exchange and in respiratory mechanics during robotic-assisted surgery. Prospective observational study on patients undergoing…
View details →DOI: 10.1007/s11701-026-03392-8 Negative / Null Result ReportMedicine
Dunseath GJ, Cheung WY, Luzio SD et al. · 2026 · Diabetes care
Objective To determine whether less invasive C-peptide tests, urine C-peptide-to-creatinine ratio (UCPCR) and dried blood spot (DBS), could replace the mixed-meal tolerance test (MMTT) in the context of an interventional clinical trial…
View details →DOI: 10.2337/dc25-2896 Negative / Null Result ReportMedicine
Wu S, Liu Q, Li L et al. · 2025 · Agriculture, Ecosystems and Environment.
Forage production and quality, two crucial ecosystem functions of grasslands, often demonstrate a trade-off and are significantly affected by both grassland community characteristics and environmental factors. However, whether and how…
Negative / Null Result ReportMedicine
de Almeida GN, de Jesus LG, Branco MEC et al. · 2026 · Journal of applied animal welfare science : JAAWS
Track devices can cause behavioral, physical, and physiological adverse effects, with individuals varying in how quickly they adapt to them. We examined behavioral effects of replica radio-collars on two captive psittacid species,…
View details →DOI: 10.1080/10888705.2026.2681557 Negative / Null Result ReportMedicine
Huda MS, Margari N, Islam N et al. · 2026 · Obstetric medicine
Aims To determine the impact of tighter glycaemic targets for gestational diabetes. Methods Retrospective data analysis before and after introducing tighter glucose targets. Results In 2265 pregnancies there was no change in…
View details →DOI: 10.1177/1753495x261445509 Negative / Null Result ReportMedicine
Uzlu D, Erdöl H, Bulanık ÖB et al. · 2026 · BMC ophthalmology
Background The objective of this study was to evaluate the anatomical and functional outcomes of patients who underwent relaxing retinotomy or retinectomy for retinal detachment complicated by proliferative vitreoretinopathy. Methods The…
View details →DOI: 10.1186/s12886-026-04904-8 Negative / Null Result ReportMedicine
Richardson AE, VanderKaay Tomasulo MM · 2026 · BMC psychology
Background The need to mentally rotate objects is common in everyday activities (e.g., driving, loading suitcases in a car, playing 3D video games) and in specific professions (e.g., air traffic controllers, mechanics, pilots, surgeons).…
View details →DOI: 10.1186/s40359-026-04818-6 Negative / Null Result ReportMedicine
Crippa M, Turati M, Flumian C et al. · 2026 · Journal of ISAKOS : joint disorders & orthopaedic sports medicine
Introduction/objectives Pediatric anterior cruciate ligament reconstruction (ACLR) outcomes, particularly long-term functional recovery and return-to-sport (RTS), remain debated and have not been well characterized in skeletally immature…
View details →DOI: 10.1016/j.jisako.2026.101149 Negative / Null Result Report
Soboleva I, Brik T · 2026 · Preprint
The theory of personality coherence (TPC) posits that personality matters most when ‘scripts’---socially prescribed norms of conduct---are weak or changing. The COVID-19 pandemic offered a natural test of TPC, yet there have been no…
View details →DOI: 10.31234/osf.io/v3u7g_v2 Negative / Null Result ReportMedicine
Morris AJ, McKinney WP, Roberts SA · 2026 · The New Zealand medical journal
Aim Our aim was to record current susceptibility results of genital yeast isolates and to compare the results to the previous report covering the period 2001-2015. Methods Genital yeast isolates had their antifungal susceptibility…
View details →DOI: 10.26635/6965.7444 Negative / Null Result ReportMedicine
Baştuğ O, Canpolat A, Kafadar D et al. · 2026 · American journal of perinatology
Objective This study aimed to evaluate the renal effects and safety of adjunct aminophylline therapy in neonates with hypoxic-ischemic encephalopathy (HIE) undergoing therapeutic hypothermia (TH). Study design This retrospective cohort…
View details →DOI: 10.1055/a-2847-3290 Negative / Null Result ReportMedicine
Kasai N, Ihara H, Iemitsu M et al. · 2026 · Experimental physiology
Prolonged sitting disrupts lower-limb endothelial and microvascular function, likely via reduced shear stress and blunted microvascular reactivity. We examined whether Tabata-style high-intensity interval training (HIIT) mitigates this…
View details →DOI: 10.1113/ep093646 Negative / Null Result ReportMedicine
Ganss C, Jung K · 2026 · Journal of dentistry
Objectives To investigate Hawthorne-like research participation effects on toothbrushing-related plaque outcomes. The data source was a longitudinal flossing study without toothbrushing instruction. Methods This secondary analysis used…
View details →DOI: 10.1016/j.jdent.2026.106721 Negative / Null Result ReportMedicine
Nakamura S, Tajima S, Hirota T et al. · 2026 · International journal of hematology
Tacrolimus (TAC) is a pivotal immunosuppressant used to prevent graft-versus-host disease (GVHD) following hematopoietic stem cell transplantation (HSCT). However, because lymphocytes express P-glycoprotein (P-gp), which actively effluxes…
View details →DOI: 10.1007/s12185-026-04196-0 