Negative / Null Result ReportMedicine
Li JL, Wu JH, Zhao X et al. · 2026 · Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing
BACKGROUND: The role of prophylactic cavotricuspid isthmus (CTI) ablation remains controversial in atrial fibrillation (AF) patients without atrial flutter (AFL). Given the strong association between AF, AFL, and age, this study aimed to…
View details →DOI: 10.1007/s10840-026-02305-x Negative / Null Result ReportOpen accessMedicine
Hertig D, Furian M, Müller J et al. · 2026 · ERJ open research
Background Little is known about the effects of portable supplemental oxygen therapy (SOT) to improve exercise performance in highlanders at risk for high-altitude pulmonary hypertension (HAPH). We aimed to investigate whether SOT improves…
View details →DOI: 10.1183/23120541.00724-2025 Negative / Null Result ReportMedicine
Martins BM, Vieira RAM, Bittencourt CS et al. · 2025 · Journal of dairy science
This study evaluated the effects of propionic acid inclusion (PAI; 0, 0.25, and 0.50% of fresh matter) and ensiling time (ENT; 30, 60, 90, 120, 150, and 180 d) on the chemical composition, fermentation profile, DM losses, and in situ…
View details →DOI: 10.3168/jds.2025-26841 Negative / Null Result ReportMedicine
Jeon SH, Song C, Jeon JH et al. · 2026 · Cancer research and treatment
Purpose The aim of this study was to identify subgroups of patients with pathologic N2 (pN2) non-small cell lung cancer (NSCLC) who may benefit from postoperative radiotherapy (PORT). Particular attention was given to evaluating whether…
View details →DOI: 10.4143/crt.2025.644 Negative / Null Result ReportMedicine
Moreau J, Neyraud C, Huguet H et al. · 2026 · European journal of cardiovascular nursing
Aims Despite significant medical advances in recent decades, cardiopulmonary fitness decreases faster in youth with congenital heart disease (CHD) than in healthy peers, resulting in impaired health-related quality of life (HRQoL) and…
View details →DOI: 10.1093/eurjcn/zvag115 Negative / Null Result Report
Juma OA, Ochieng ME, Magak NM et al. · 2026 · Preprint
Abstract Background ART has reduced HIV mortality, but dyslipidaemia and thyroid dysfunction are increasingly observed; effects in Kisumu County remain unclear. Methodology Serum lipids (TC, TG, HDL, LDL) and thyroid hormones (TSH, T4, T3)…
View details →DOI: 10.21203/rs.3.rs-9555257/v1 Negative / Null Result ReportMedicine
Goksoy B, Ofluoglu CB, Azamat IF et al. · 2026 · Surgical oncology
Background Medial-to-lateral (ML) approach is the standard technique in laparoscopic surgery for left-sided colon cancer. However, it can be technically challenging; such as in patients with intra-abdominal adhesions or during splenic…
View details →DOI: 10.1016/j.suronc.2026.102354 Negative / Null Result ReportMedicine
Andriotti NM, Paris W, Maia FJ et al. · 2026 · Animal Feed Science and Technology.
Feed additives that improve energy metabolism efficiency can enhance cattle performance and nitrogen use. This study evaluated the effects of guanidinoacetic acid (GAA) and methionine (MET) supplementation, alone or combined, on…
Negative / Null Result ReportMedicine
Perton FT, Pouw JN, Spierings J et al. · 2026 · Arthritis research & therapy
Background To investigate the associations of circulating immune cell biomarkers with clinical manifestations and treatment response in Psoriatic Arthritis (PsA), and to evaluate whether these biomarkers improve prediction of individual…
View details →DOI: 10.1186/s13075-026-03833-7 Negative / Null Result ReportMedicine
Mcloughlin C, Ramsay N, Tak L et al. · 2026 · Journal of psychosomatic research
Background Stigma in Functional Neurological Disorder has been consistently reported by patient organisations as one of their biggest challenges. We aimed to longitudinally evaluate different components of stigma, namely perceived,…
View details →DOI: 10.1016/j.jpsychores.2026.112550 Negative / Null Result ReportMedicine
Engel H, Yilmaz C, Appelhans D et al. · 2026 · International journal of sport nutrition and exercise metabolism
Caffeine enhances endurance performance but may impair shooting accuracy, creating a potential trade-off for overall biathlon performance. In a randomized, placebo-controlled, crossover study, seven elite male biathletes consumed caffeine…
View details →DOI: 10.1123/ijsnem.2025-0138 Negative / Null Result ReportMedicine
Pairojboriboon S, Charakorn K, Promoppatum P · 2026 · Expert review of medical devices
Background 3D-printed patient-specific pedicle screw guides (3DPSG) may provide accuracy comparable to intraoperative CT navigation (CTNav). Our 3DPSG workflow incorporates a virtual surgical planning (VSP) platform that uses deep-learning…
View details →DOI: 10.1080/17434440.2026.2687808 Negative / Null Result ReportOpen accessMedicine
Barton JC, Barton JC, Bertoli LF et al. · 2026 · PloS one
Background HFE p.C282Y (rs1800562) homozygotes, including those with normal iron phenotypes, have increased risks of infection and death from infections, although serum IgA and IgM in cohorts of adults with p.C282Y homozygosity are not…
View details →DOI: 10.1371/journal.pone.0352148 Negative / Null Result ReportMedicine
Karlsson E, Dalén M, Svenarud P et al. · 2026 · Scandinavian cardiovascular journal : SCJ
Objectives Jehovah's Witnesses categorically refuse allogenic blood transfusions on religious grounds, a major challenge if intervention for heart disease is required. We retrospectively analyzed outcome after open-heart surgery in 26…
View details →DOI: 10.1080/14017431.2026.2690764 Negative / Null Result ReportMedicine
Xu T, Zhao J, Wu J et al. · 2026 · Infectious agents and cancer
Objective This study examined the association between high risk human papillomavirus viral load and cervical squamous lesions using the Cobas 4800 assay and evaluated its potential as an indicator for identifying CIN2+, and analyzed the…
View details →DOI: 10.1186/s13027-026-00770-7 Negative / Null Result Report
Tateno M, Mizuno K, Date M et al. · 2026 · Preprint
Background: Secondhand exposure to heated tobacco products (HTPs) is increasingly common, but its impact on human milk composition is unclear. We investigated whether secondhand exposure to HTP aerosols affects major human milk components…
View details →DOI: 10.20944/preprints202605.1520.v1 Negative / Null Result ReportMedicine
Steuber T, Graetz C, Springer C et al. · 2026 · International journal of dental hygiene
Objective This two-centre, double-blind, randomized, parallel-group study compared the efficacy and safety of a novel powered full-mouth cleaning device system (FMCD) with habitual toothbrushing (CG) in patients with generalized gingivitis…
View details →DOI: 10.1111/idh.70116 Negative / Null Result ReportMedicine
Okazaki T, Imagama T, Matsuki Y et al. · 2026 · The Journal of arthroplasty
Background The use of highly-porous acetabular components in total hip arthroplasty (THA) has gained popularity. To elucidate the clinical and radiological outcomes of three-dimensional (3D)-printing highly porous cups, we compared…
View details →DOI: 10.1016/j.arth.2026.06.011 Negative / Null Result Report
Zullo F, Chen H, Hoffman MK et al. · 2026 · Preprint
Objective: To ascertain if the adverse outcomes differ significantly in individuals without versus with one prior cesarean delivery(CD). Design: Population-based, retrospective cohort. Setting: U.S. Vital-Statistics birth-infant…
View details →DOI: 10.22541/authorea.15003037/v1 Negative / Null Result ReportMedicine
Patel AA, Levi JR, Weber PC · 2026 · The Annals of otology, rhinology, and laryngology
Objective While prior literature has demonstrated that patients of lower socioeconomic groups may have larger tumors on presentation and poorer outcomes, there is limited literature on the impact of race and ethnicity on management of…
View details →DOI: 10.1177/00034894261453716 Negative / Null Result ReportMedicine
Heinrich C, Hofstaetter H, Puschkasch-Möck S et al. · 2026 · European journal of applied physiology
Objective To evaluate conventional hamstring-to-quadriceps ratio across the menstrual cycle in distinct angular velocities in an eumenorrheic, physically active population. Design Repeated measures within-subjects design. Methods…
View details →DOI: 10.1007/s00421-026-06279-6 Negative / Null Result ReportMedicine
Avsar FN, Erinc O, Sahutoglu T · 2026 · Hemodialysis international. International Symposium on Home Hemodialysis
Introduction Depression is prevalent in maintenance hemodialysis patients and is influenced by the interplay of physical and mental health. Rather than a direct antidepressant effect of dialyzer membrane type, improved clearance of middle…
View details →DOI: 10.1111/hdi.70091 Negative / Null Result ReportMedicine
Pontecorvo AA, Cornejo J, Tsenteradze T et al. · 2026 · Journal of robotic surgery
This study aimed to evaluate and compare perioperative outcomes of robotic versus laparoscopic cholecystectomy in patients with acute cholecystitis within an Acute Care Surgery setting. A retrospective cohort study was conducted including…
View details →DOI: 10.1007/s11701-026-03530-2 Negative / Null Result ReportMedicine
Iurchenkov A, Danilova A, Shilo P et al. · 2026 · Cancers
Background : Immune checkpoint inhibitors have significantly improved survival in metastatic melanoma. Combination nivolumab plus ipilimumab demonstrated superior efficacy in randomized trials, including CheckMate 067, but data beyond the…
View details →DOI: 10.3390/cancers18121994 Negative / Null Result Report
harada k, ikeda s, makino j · 2026 · Preprint
Abstract Background Prolonged intensive care unit (ICU) stays are associated with increased mortality and functional decline. Time-limited trials (TLTs) support decision-making under prognostic uncertainty; however, uncertainty may persist…
View details →DOI: 10.21203/rs.3.rs-9559184/v1 Negative / Null Result ReportMedicine
Guan X, Li X, Yue M et al. · 2026 · Scientific reports
Pressure injury (PI) prevention requires sustained nursing behaviors from patients, caregivers, and nurses. This single-center quasi-experimental, non-randomized, non-equivalent control group study enrolled 60 inpatients with PI or high PI…
View details →DOI: 10.1038/s41598-026-59843-7 Negative / Null Result ReportOpen accessMedicine
Chen Z, Wang S, Palus S et al. · 2026 · Journal of cachexia, sarcopenia and muscle
Background Cancer cachexia is associated with rapid body wasting and cardiac dysfunction. Bisoprolol (BIS) and megestrol acetate (MA) improve selected cachexia phenotypes in the Yoshida AH-130 model, but their combined effects are not…
View details →DOI: 10.1002/jcsm.70313 Negative / Null Result Report
Choi D, Jung CW, Jang JH · 2026 · Preprint
Abstract Background Allogeneic hematopoietic stem cell transplantation (allo-HSCT) remains a cornerstone of therapy for adult B-cell acute lymphoblastic leukemia (B-ALL), yet simultaneous comparisons across all four major donor categories…
View details →DOI: 10.21203/rs.3.rs-9480094/v1 Negative / Null Result ReportMedicine
Vlachodimitropoulou E, Dagli SN, Huang GNY et al. · 2026 · Fetal diagnosis and therapy
Introduction Twin-twin transfusion syndrome (TTTS) may complicate triplet pregnancies with a monochorionic component; however, data on foetoscopic laser ablation (FLA) in this setting remain limited. This study evaluated perinatal outcomes…
View details →DOI: 10.1159/000551563 Negative / Null Result ReportMedicine
Kasanmonadi RYN, Kamperman AM, Koch BCP et al. · 2026 · Journal of clinical psychopharmacology
Purpose/background Although combined plasma levels of imipramine and its metabolite desipramine are routinely assessed during therapeutic drug monitoring (TDM) of imipramine treatment, individual plasma levels are often overlooked.…
View details →DOI: 10.1097/jcp.0000000000002187 