Negative / Null Result ReportMedicine
Liu P, Dang C, Liu J et al. · 2026 · Current medicinal chemistry
Introduction This study aimed to investigate the causal relationship and biological mechanism between oral contraceptives (OCs) and adverse pregnancy outcomes using Mendelian randomization (MR) methods. Methods We conducted a drug-target…
View details →DOI: 10.2174/0109298673396130260330140027 Negative / Null Result ReportMedicine
Zadrożny Ł, Orlańska A, Ponto-Wolska M et al. · 2026 · European journal of dentistry
Objective This article aims to evaluate dental students' experiences, perceptions, and expectations related to training with virtual reality-based haptic simulators (VRHS) introduced into the preclinical and clinical dental curriculum.…
View details →DOI: 10.1055/s-0046-1824443 Negative / Null Result ReportMedicine
Schmidt G, Dietsche S, Stoll K et al. · 2026 · Sexual & reproductive healthcare : official journal of the Swedish Association of Midwives
Objective To evaluate the psychometric properties of the German Birth Beliefs Scale (G-BBS) in a large sample of pregnant women in Germany, and its potential utility for women-centred birth counselling, and respectful maternity care.…
View details →DOI: 10.1016/j.srhc.2026.101247 Negative / Null Result Report
Wang M, Bai B, Yin T et al. · 2026 · Preprint
Abstract This study applied a two‑sample bidirectional Mendelian randomization (MR) design using genetic summary statistics from the FinnGen R9 database to examine the causal link between genetic predisposition to antidepressant treatment…
View details →DOI: 10.21203/rs.3.rs-9057307/v1 Negative / Null Result Report
Figureau T, Priolo D, Sleegers WWA et al. · 2025 · Preprint
Cognitive dissonance, a fundamental psychological process involving inconsistent cognitions causing discomfort, may vary across cultures. These variations could be attributed to differences in the way people define themselves, known as…
View details →DOI: 10.31234/osf.io/fk3pd_v4 Negative / Null Result ReportMedicine
Saengsin K, Jirattikanwong N, Wongyikul P et al. · 2026 · Journal of clinical medicine
Background/Objectives : Post-extubation stridor (PES) is common in pediatric critical care and may contribute to extubation failure, particularly in children with heart disease. Prophylactic corticosteroids are frequently used before…
View details →DOI: 10.3390/jcm15124762 Negative / Null Result Report
Figureau T, Priolo D, Sleegers WWA et al. · 2026 · Preprint
Cognitive dissonance, traditionally conceptualized as a fundamental psychological process involving discomfort from inconsistent cognitions, may vary across cultures. These variations could be attributed to self-construal, or how…
View details →DOI: 10.31234/osf.io/9u7ns_v2 Negative / Null Result ReportMedicine
Espeche W, Minetto J, Cerri G et al. · 2026 · Hypertension research : official journal of the Japanese Society of Hypertension
Hypertensive disorders of pregnancy are a leading cause of maternal-fetal morbidity and mortality, with preeclampsia representing a major contributor to adverse outcomes. Ambulatory blood pressure monitoring (ABPM) has improved risk…
View details →DOI: 10.1038/s41440-026-02687-5 Negative / Null Result ReportMedicine
Vollam S, Roman C, Santos M et al. · 2026 · JMIR medical informatics
Background Many studies have evaluated the use of wearable monitoring systems to improve patient safety in hospital. Although some have demonstrated effects on intensive care admissions, there remains little evidence of impact on patient…
View details →DOI: 10.2196/81304 Negative / Null Result Report
Appiah KN, Sharma N, Adu N et al. · 2026 · Preprint
Abstract Background: Anthracycline-based chemotherapy produces progressive functional decline and cardiotoxicity in adults with cancer. Physical activity interventions may attenuate these effects, yet evidence across multiple domains…
View details →DOI: 10.21203/rs.3.rs-9439431/v1 Negative / Null Result ReportMedicine
Qin X, Fan L, Tang Y et al. · 2026 · Archives of gynecology and obstetrics
Purpose The potential adverse effects of repeated freezing and thawing processes on embryos remain controversial. This study aimed to investigate the impact of repeated embryo cryopreservation by comparing preimplantation genetic testing…
View details →DOI: 10.1007/s00404-026-08475-3 Negative / Null Result Report
Kang B · 2026 · Preprint
Abstract Background: Major depressive disorder (MDD) is highly polygenic, yet translating genome-wide association study (GWAS) findings into therapeutics remains challenging. Using PGC MDD2025, we integrated gene-level mapping, brain TWAS,…
View details →DOI: 10.21203/rs.3.rs-9880173/v1 Negative / Null Result ReportMedicine
Koczur K, Blukacz M, Galbarczyk A et al. · 2026 · American journal of human biology : the official journal of the Human Biology Council
Objectives Microbiota of the urogenital tract is crucial for women's reproductive and sexual health and is largely dominated by Lactobacillus strains. A reduction of these bacteria within the vaginal microbial community has been linked to…
View details →DOI: 10.1002/ajhb.70291 Negative / Null Result Report
Karl V, Beck D, Dall'Aglio L et al. · 2026 · Preprint
Background: Adolescence is a developmental period involving ongoing white matter (WM) maturation and rising risk for psychopathology. This risk is particularly elevated among youth whose parents have mental health problems. Methods:…
View details →DOI: 10.31234/osf.io/ksy2n_v1 Negative / Null Result ReportMedicine
Pongdee T · 2026 · Current allergy and asthma reports
PURPOSE OF REVIEW: Recent strategies to treat nonadvanced SM have focused on targeted therapies to inhibit mast cell activation and/or proliferation. Several investigational approaches are being explored to treat nonadvanced SM in this…
View details →DOI: 10.1007/s11882-026-01263-8 Negative / Null Result Report
Figureau T, Priolo D, Sleegers WWA et al. · 2025 · Preprint
Cognitive dissonance, a fundamental psychological process involving inconsistent cognitions causing discomfort, may vary across cultures. These variations could be attributed to differences in the way people define themselves, known as…
View details →DOI: 10.31234/osf.io/fk3pd_v3 Negative / Null Result ReportMedicine
McKenna VS, Gustin RL, Novak VD et al. · 2026 · Journal of voice : official journal of the Voice Foundation
Objective Acoustic outcomes documented following gender-affirming voice and communication therapy (GAVT) for vocal feminization often include measures of vocal pitch and resonance; however, it is likely that other aspects of speech and…
View details →DOI: 10.1016/j.jvoice.2026.04.008 Negative / Null Result ReportMedicine
Beatty-Wright JF, Hill PL · 2026 · The British journal of social psychology
Intergroup anxiety can undermine positive intergroup relations. This Registered Report presents two preregistered online studies testing a mental contrasting intervention to reduce intergroup anxiety towards Black individuals. Previous…
View details →DOI: 10.1111/bjso.70076 Negative / Null Result ReportOpen accessMedicine
An Z, Wang S, Zhang M et al. · 2026 · Cardiology research and practice
Background Three-vessel coronary artery disease (3V-CAD) often requires revascularization with either percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG). The SYNTAX score is widely used for anatomical risk…
View details →DOI: 10.1155/crp/9497660 Negative / Null Result ReportMedicine
Zhu F, Sun Y, Kuang D et al. · 2026 · Journal of medical Internet research
Background Children with inattentive attention-deficit/hyperactivity disorder (ADHD) often present with impairments in executive functions and fine motor skills in addition to core inattentive symptoms. However, evidence remains limited…
View details →DOI: 10.2196/97365 Negative / Null Result ReportMedicine
Lee JC, Keller K, Lake AJ et al. · 2026 · Journal of economic entomology
Grapevine red blotch virus (GRBV) reduces grapevine vigor, delays grape ripening, reduces sugar content and quality of wines in North America and other continents. To date, the three-cornered alfalfa hopper, Spissistilus festinus, has been…
View details →DOI: 10.1093/jee/toag129 Negative / Null Result ReportMedicine
Sanow S, Mantz M, Wissel H et al. · 2026 · Plant, cell & environment
Plant growth-promoting bacteria can enhance plant performance under nutrient limitation, yet the underlying plant molecular responses remain incompletely resolved. We investigated growth promotion by Pseudomonas koreensis in Brachypodium…
View details →DOI: 10.1111/pce.70615 Negative / Null Result ReportMedicine
Smoljan A, Koutnik-Abele S, Vladimirtsev D et al. · 2026 · Journal of integrative plant biology
Auxin, primarily indole-3-acetic acid (IAA), is a central regulator of growth and development in land plants, but its physiological role in chlorophyte algae remains unclear. Here, we show that exogenous IAA modulates growth in Chlorella…
View details →DOI: 10.1111/jipb.70309 Negative / Null Result ReportMedicine
Mohy N, Sanaie S, Rahnemayan S et al. · 2026 · Beneficial microbes
Oxidative stress is a significant contributor to neuronal damage in multiple sclerosis (MS), marked by an imbalance in reactive oxygen species and antioxidant defences. Probiotics may modulate oxidative stress and improve antioxidant…
View details →DOI: 10.1163/18762891-bja00115 Negative / Null Result ReportMedicine
Tan ZH, Yang LY, Hu YH et al. · 2026 · The American naturalist
AbstractSeasonal leaf dynamics in tropical rainforests directly affect canopy photosynthetic capacity and carbon assimilation. Although hypotheses such as water stress, solar light, and herbivore pressure have been proposed to elucidate…
View details →DOI: 10.1086/740829 Negative / Null Result ReportMedicine
Handeland AH, Indelicato DJ, Engeseth GM et al. · 2026 · International journal of radiation oncology, biology, physics
Introduction Brainstem necrosis is a rare but serious toxicity following radiotherapy for pediatric brain tumors. In proton therapy (PT), concerns have emerged around elevated linear energy transfer (LET) and the relative biological…
View details →DOI: 10.1016/j.ijrobp.2026.05.054 Negative / Null Result Report
Pollet TV, Fitzpatrick B, Meziani S et al. · 2026 · Preprint
Birth order has long been argued to be an important individual difference variable for domains such as personality and achievement. However, after many decades of research, the evidence for a birth order effect is scarce at best. Less is…
View details →DOI: 10.31234/osf.io/hn2j4_v4 Negative / Null Result ReportMedicine
Kamionka SL, Sodemann M, Bilenberg N et al. · 2026 · Health (London, England : 1997)
Written information exchange is widely used to share information and coordinate care across services. Yet, its coordinating effects remain unclear. The aim of the study was to explore the textually mediated practices through which…
View details →DOI: 10.1177/13634593261419400 Negative / Null Result ReportMedicine
Nichols JD, Hines JE, Hinz RL et al. · 2026 · Ecology
Experimental and observational studies of effects of fragmentation on biodiversity and population dynamics have produced mixed results, with some reviews concluding strong evidence of negative effects and others concluding small positive…
View details →DOI: 10.1002/ecy.70327 Negative / Null Result Report
Carlsson KS, Brommels M, Ohrling M · 2026 · Preprint
Abstract Background Decentralised and market-inspired health system reforms have increased organisational plurality and local autonomy but often intensify fragmentation and complicate system-wide coordination. This study explored how…
View details →DOI: 10.21203/rs.3.rs-8703981/v1 