Negative / Null Result ReportOpen accessMedicine
Awada Z, Kazmi N, Jones HJ et al. · 2026 · BMC cancer
BACKGROUND: Breast cancer (BC) is the leading cause of cancer incidence worldwide. Observational studies have suggested that hypertension may be a risk factor for BC. We tested whether systolic blood pressure (SBP) may influence BC and BC…
View details →DOI: 10.1186/s12885-025-15513-x Negative / Null Result ReportMedicine
Shah H, Ali M, Kilgallon JL et al. · 2026 · Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia
Neurosurgery and neurosurgical care continues to evolve and to embrace technological advances. AI is used to interpret radiological studies and to distill medical information, with the potential to help guide physicians and patients in…
View details →DOI: 10.1016/j.jocn.2025.111731 Negative / Null Result ReportMedicine
Nishida S, Watanabe N, Hashimoto K et al. · 2026 · Journal of plant research
Reproductive interference is a negative interspecific interaction that can drive mutually exclusive distributions of closely related species. While recent research indicates that reproductive interference in plants frequently occurs during…
View details →DOI: 10.1007/s10265-025-01681-1 Replication FailureMedicine
Nissi L, Elseragy A, Wahab A et al. · 2026 · American journal of otolaryngology
Background Depth of invasion (DOI) is a well-established prognostic factor in oral cavity squamous cell carcinoma (OSCC). Incorporating DOI into the OSCC staging system has substantially refined T-classification and now informs key…
View details →DOI: 10.1016/j.amjoto.2026.104869 Failed Experiment ReportMedicine
Looman MI, Klau MM, Schoenmakers TM et al. · 2026 · Journal of sleep research
While time in bed restriction is a core treatment mechanism of Sleep Restriction Therapy (SRT), empirical research has not yielded a relationship between insomnia improvement and adherence to the prescribed time in bed. We coin this…
View details →DOI: 10.1111/jsr.70339 Negative / Null Result Report
Bixio M, Scamperle A, Quarantotto G et al. · 2026 · Preprint
Background: /Objectives: The use of IgM- and IgA-enriched intravenous immunoglobulins (eIg) in septic shock remains controversial due to the lack of high-quality evidence, despite indications from observational studies and meta-analyses…
View details →DOI: 10.20944/preprints202604.2104.v1 Negative / Null Result ReportMedicine
Clark C, Lira Calabrich S, Lallier M et al. · 2026 · Quarterly journal of experimental psychology (2006)
This study examined how orthographic characteristics relate to the learning and retention of novel written words in monolingual English and bilingual Welsh-English adults. Participants learned pseudowords designed to follow either…
View details →DOI: 10.1177/17470218261441260 Negative / Null Result ReportMedicine
Vijay A, Fruzzetti AE · 2026 · Journal of interpersonal violence
Sexual victimization and assault are significant public health problems. Survivors of sexual assault have significantly increased risk for psychological health problems, physical health problems, interpersonal difficulties, and other…
View details →DOI: 10.1177/08862605251412351 Negative / Null Result ReportMedicine
Wright PJ, Gruszczynski M · 2026 · Health communication
Pornography exposure and condomless sex studies to date have assumed a linear relationship and found only small effect sizes. The present study introduces the Disinhibition Threshold Hypothesis (DTH) in the context of emerging U.S. adults'…
View details →DOI: 10.1080/10410236.2026.2632149 Negative / Null Result ReportMedicine
Murayama Y, Soma D, Kameya M et al. · 2026 · Discover mental health
Loneliness is a key risk factor for youth mental health; however, existing scales often fail to capture its multidimensional and relational nature. This study developed the [blinded] University Loneliness Scale (KULoS) for students in…
View details →DOI: 10.1007/s44192-026-00462-z Negative / Null Result ReportMedicine
Han M, Qu Y, Zeng M et al. · 2026 · Geriatric nursing (New York, N.Y.)
Background To investigate the associations of physical activity (PA) and sedentary behavior (SB) with the risk of mortality using observational and Mendelian randomization (MR) designs. Methods In a prospective cohort study based on UK…
View details →DOI: 10.1016/j.gerinurse.2026.103834 Negative / Null Result ReportMedicine
Jepsen K, Jepsen S, Hämmerle CHF et al. · 2026 · Clinical oral implants research
Aim To assess 3-year changes of peri-implant tissues following previous soft tissue (volume) augmentation (STA) with a volume-stable collagen matrix (VCMX) or connective tissue (SCTG) at single-implant restorations. Material and methods In…
View details →DOI: 10.1111/clr.70078 Negative / Null Result ReportMedicine
Eggert AK, Prang MA, Capodeanu-Nägler A et al. · 2026 · Evolution; international journal of organic evolution
Effects on juvenile growth have long been considered an important benefit of parental care, but they have rarely been tested empirically. Protection and feeding by parents might accelerate offspring growth by allowing offspring to allocate…
View details →DOI: 10.1093/evolut/qpaf223 Negative / Null Result ReportOpen accessMedicine
· 2026
What is hodgkin lymphoma? • Hodgkin lymphoma is a B-cell lymphoid malignancy generally associated with a favourable prognosis (high cure rate and 5-year overall survival [OS] rates exceeding 90%), but it often comes with a high risk of…
Negative / Null Result Report
Kent T, Lewis G, Lewis G · 2025 · Preprint
Purpose: Sexual minority and trans individuals are at increased risk of suicidal behaviour comparedwith their heterosexual and cisgender counterparts. A potential explanation for this disparity is theconcept of minority stress. The present…
View details →DOI: 10.31234/osf.io/dcx7t_v1 Negative / Null Result ReportOpen accessMedicine
Zeng J, Huang D, Zhu M et al. · 2025 · Medicine
Weekend catch-up sleep (WCS) is a behavioral strategy employed to compensate for weekday sleep loss and has been reported to be associated with various metabolic outcomes. However, its association with obesity remains controversial. This…
View details →DOI: 10.1097/md.0000000000044670 Negative / Null Result Report
Subramanian G, Zelano C, Paller KA et al. · 2025 · Preprint
Abstract Reactivation of recently acquired memories during sleep supports their longevity. Reactivation can be altered during sleep using odors or sounds through a technique termed targeted memory reactivation (TMR). Here, we attempted to…
View details →DOI: 10.1101/2025.07.25.666857 Failed Experiment ReportOpen accessMedicine
Martin E, Conway CJ · 2026 · Ecology and evolution
Aggregation is common across taxa and typically confers clear benefits to group members (e.g., allo-parenting, group defense, thermoregulation, access to resources). But aggregation can also be costly. The mechanisms that underpin…
View details →DOI: 10.1002/ece3.73311 Failed Experiment Report
Huchegowda R, Harbishettar V, Sinha P et al. · 2025 · Preprint
Background Cognitive impairment in the older adult population has been linked to low Vitamin B12 levels and elevated Homocysteine levels, but evidence is not clear. This study examines the relationship between serum Vitamin B12 (B12)…
View details →DOI: 10.1101/2025.08.02.25332580 Negative / Null Result Report
Danböck SK, Hettegger S, Franke LK et al. · 2025 · Preprint
Background: Peritraumatic dissociation is thought to contribute to posttraumatic symptoms like intrusions and memory disturbances. However, trauma-analogue studies that examined effects of experimental dissociation-induction on intrusions…
View details →DOI: 10.31234/osf.io/b7549_v1 Negative / Null Result Report
Ilkovska B, Trifunova BK, Ilkovski F et al. · 2025 · Preprint
Abstract Background: Breast cancer (BC) is one of the most common malignancies among women worldwide, with approximately 2.3 million new cases and 685,000 deaths reported in 2020. Inflammation-related hematologic parameters—such as the…
View details →DOI: 10.21203/rs.3.rs-7092201/v1 Negative / Null Result ReportMedicine
Malmagro R, García‐Navas V, Priyadarshana TS et al. · 2025 · Global Ecology and Biogeography
AIM: Historical and contemporary environmental factors are hypothesised to influence the degree of ecological specialisation of species. Long‐term climate stability might facilitate specialisation by promoting stable environments and…
Negative / Null Result ReportMedicine
Labbani-Motlagh Z, Nozarian Z, Haghi Ashtiani MT et al. · 2025 · Iranian journal of immunology : IJI
Background Coronavirus Disease 2019 (COVID-19) typically manifests with milder symptoms and lower mortality rates in children when compared to adults. Objective To investigate potential mechanisms underlying this age-related protection, we…
View details →DOI: 10.22034/iji.2025.104055.2879 Negative / Null Result ReportOpen accessMedicine
Bahmani A, Kemmerly T, Yang BE · 2026 · ACG case reports journal
Esophageal lichen planus (ELP) is a rare inflammatory disorder frequently misdiagnosed due to its nonspecific symptoms and overlapping features with other esophageal conditions. We present 3 cases of ELP characterized by delayed diagnosis…
View details →DOI: 10.14309/crj.0000000000002202 Negative / Null Result ReportMedicine
Komai T · 2025 · Zootaxa
A new pagurid hermit crab species, Pagurus inflatus sp. nov., has been provisionally assigned to the heterogeneous genus Pagurus Fabricius, 1775. This new species is characteristic in its elongated right cheliped with a noticeably inflated…
View details →DOI: 10.11646/zootaxa.5647.1.3 Negative / Null Result ReportMedicine
Petrini S, Martucciello A, Righi C et al. · 2025 · Vaccine: X
Bovine alphaherpesvirus 1 (BoAHV-1) is a major cattle pathogen that causes infectious bovine rhinotracheitis (IBR) and other respiratory and reproductive disorders, resulting in substantial global economic losses to the cattle industry.…
Negative / Null Result ReportMedicine
Su J, Zhang WB, Sun B et al. · 2025 · Experimental & applied acarology
Haemaphysalis flava Neumann, 1897 is recognized as a vector for Dabie bandavirus (severe fever with thrombocytopenia syndrome virus, SFTSV), which is the etiological agent of severe fever with thrombocytopenia syndrome (SFTS). The tick…
View details →DOI: 10.1007/s10493-025-01051-5 Negative / Null Result ReportOpen accessMedicine
Edsor E, Jose M, Sajesh S et al. · 2025 · Journal of pharmacy & bioallied sciences
Background The aim of this study is to assess whether there is a difference in the wound healing process following the extraction of a tooth between type 2 diabetes patients on oral hypoglycemic medications and nondiabetic patients.…
View details →DOI: 10.4103/jpbs.jpbs_1240_25 Failed Experiment ReportMedicine
Del Rivero J, Donahue RN, Marte JL et al. · 2025 · The oncologist
Background It has been hypothesized that sequencing antigen-directed immunotherapy with immune checkpoint inhibitors could prime a tumor for immune response to immune checkpoint inhibitors. Methods This study (NCT03072160) was designed to…
View details →DOI: 10.1093/oncolo/oyaf348 Failed Experiment ReportMedicine
Andersen Z, Kilgore S, Waite-Cusic J et al. · 2025 · Journal of dairy science
Hispanic-style cheeses (HSC), particularly fresh soft varieties, have been associated with numerous outbreaks of Listeria monocytogenes, highlighting the need to identify product characteristics or interventions that could mitigate L.…
View details →DOI: 10.3168/jds.2025-26959 