Negative / Null Result ReportMedicine
Brustad N, Garland J, Thorsen J et al. · 2020 · JAMA pediatrics
Importance Studies suggest an association between maternal vitamin D status during pregnancy and offspring anthropometry and bone mineralization, but investigations are few and with mixed results. Objective To investigate the effect of a…
View details →DOI: 10.1001/jamapediatrics.2019.6083 Negative / Null Result ReportOpen accessMedicine
Wu Y, Tan KC, Shiu SW et al. · 2022 · Journal of diabetes investigation
Aims/introduction To examine the association between cholesterol efflux capacity (CEC) of serum high-density lipoprotein (HDL) and cognitive function and brain structures in older people with diabetes mellitus. Materials and methods…
View details →DOI: 10.1111/jdi.13875 Negative / Null Result ReportMedicine
Genis C, Torun Ozel C, Selmanoglu A et al. · 2025 · Allergy and asthma proceedings
Background: Ondansetron is a common antiemetic that rarely causes hypersensitivity. Skin-prick testing (SPT) and intradermal testing (IDT) may assist in diagnosing ondansetron hypersensitivity; however, their sensitivity, specificity, and…
View details →DOI: 10.2500/aap.2025.46.250057 Negative / Null Result ReportMedicine
Felländer M, Grandi G, Juremalm M et al. · 2026 · Veterinary parasitology, regional studies and reports
Infections with Fasciola hepatica are most prevalent in south-western Sweden, but climate change may facilitate further spread, as both the parasite and its snail host thrive in humid, mild conditions. Sheep are particularly susceptible,…
View details →DOI: 10.1016/j.vprsr.2026.101469 Negative / Null Result ReportMedicine
Yi P, Ou ZY, Wang MM et al. · 2026 · Zhongguo shi yan xue ye xue za zhi
Objective To explore the simplest scheme for detection of "Asian-type" DEL in clinical blood transfusion and its application effectiveness. Methods 100 pregnant women who tested Rh(D) negative by the saline method were selected. Their…
View details →DOI: 10.19746/j.cnki.issn1009-2137.2026.02.023 Negative / Null Result Report
Iimura S, Nishaat A · 2025 · Preprint
The current study explored the associations between different levels of developmental plasticity factors—specifically, prenatal androgen exposure and the personality trait related to environmental sensitivity. We recruited participants…
View details →DOI: 10.31234/osf.io/563nm_v2 Negative / Null Result ReportMedicine
Lee S, Lee J, Park D et al. · 2026 · NPJ digital medicine
Gastroesophageal reflux disease (GERD) diagnosis traditionally relies on acid exposure time (AET) obtained from 24-h multichannel intraluminal impedance-pH (MII-pH) monitoring, the gold standard for GERD diagnosis. However, a negative…
View details →DOI: 10.1038/s41746-026-02796-y Negative / Null Result ReportMedicine
Galloway NL, Sargeant GA, Powers JG et al. · 2026 · Journal of wildlife diseases
Effective wildlife disease management and research rely on trustworthy disease diagnostics. For chronic wasting disease (CWD), immunohistochemistry (IHC) is recognized as the gold standard, and ELISA is a reliable high-throughput screening…
View details →DOI: 10.7589/jwd-d-25-00164 Negative / Null Result ReportMedicine
Rincón-González AM, Galeano-Tamayo DC, Zuluaga LSD · 2025 · Revista alergia Mexico (Tecamachalco, Puebla, Mexico : 1993)
Objective To explore the factors associated with the use of the antibiotic implicated in an adverse reaction following a negative challenge test in pediatric patients in a clinical allergology service of a health institution in Medellin.…
View details →DOI: 10.29262/ram.v72i3.1465 Negative / Null Result Report
Kilic A, Celiktas B · 2026 · Preprint
Abstract As Large Language Models (LLMs) are integrated into critical infrastructure, externally auditing their safety mechanism activation without internal access becomes essential. This paper investigates whether LLM safety refusals…
View details →DOI: 10.21203/rs.3.rs-9190463/v1 Negative / Null Result ReportMedicine
Warintaksa P, Youkhong C, Trikasemmart M et al. · 2026 · The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians
Introduction True labor is characterized by regular uterine contractions and cervical changes. However, the precise diagnosis of the "onset" of true labor is challenging, as the examination of cervical changes requires multiple timepoints,…
View details →DOI: 10.1080/14767058.2026.2670757 Negative / Null Result ReportMedicine
Dincer M, Aydin O, Karakus V et al. · 2026 · Laboratory medicine
Introduction Electrophoresis tests are reported as negative, positive, or-rarely-as suspicious for monoclonal band (SfMB). This study aimed to determine the fate of patients with SfMB findings in long-term follow-up. Methods Patients with…
View details →DOI: 10.1093/labmed/lmag013 Negative / Null Result Report
Slade T · 2026 · Preprint
Large language models (LLMs) are increasingly deployed in academic and professional contexts where epistemic restraint, boundary recognition, and instruction adherence are as important as raw capability. However, existing evaluations…
View details →DOI: 10.22541/au.177023469.90459572/v1 Negative / Null Result ReportMedicine
Hidalgo CM, Yin LX, Bogan AW et al. · 2026 · Head and neck pathology
Purpose The uses for circulating tumor high risk human papillomavirus DNA (ctHPVDNA) in the diagnostic work-up and treatment of HPV-associated oropharyngeal squamous cell carcinoma (HPV( +)OPSCC) patients are actively being investigated.…
View details →DOI: 10.1007/s12105-026-01911-5 Negative / Null Result ReportOpen accessMedicine
Omari Y, Nohomovich B, Sallam D et al. · 2026 · Cureus
Multitarget stool DNA-fecal immunochemical testing (mt-sDNA-FIT) is validated for colorectal cancer (CRC) screening in asymptomatic, average-risk adults. However, its application in symptomatic patients represents a misuse of a screening…
View details →DOI: 10.7759/cureus.110890 Negative / Null Result ReportOpen accessMedicine
Vardanega MJ, Longo T, Aceino A et al. · 2026 · Journal of veterinary internal medicine
Vulvovaginal squamous cell carcinoma (SCC) is an uncommon neoplasm in dogs. An 11-year-old female spayed German Shepherd dog presented with a history of excessive peri-vulvar grooming and a 3 cm × 3 cm irregular mass involving the vagina…
View details →DOI: 10.1093/jvimsj/aalag116 Negative / Null Result ReportMedicine
Goubeau L, Curis E, Delavenne X et al. · 2026 · Blood advances
Phase 3 trials evaluating inhibitors of coagulation factor (F) XI and/or its activated form (FXIa) as novel anticoagulant drugs are ongoing. These agents include parenteral monoclonal antibody (abelacimab) and oral small molecules…
View details →DOI: 10.1182/bloodadvances.2026020472 Negative / Null Result Report
Limbu N, Lamsal RR, Shrestha A · 2025 · Preprint
Abstract Citrus Decline, a complex and devastating disorder caused by various biotic and abiotic factors has emerged as a significant challenge for citrus cultivation in Nepal. This study on “Prevalence and severity of citrus decline and…
View details →DOI: 10.21203/rs.3.rs-7250604/v1 Negative / Null Result ReportOpen accessMedicine
Yin J, Wang Q, Lan T et al. · 2026 · Frontiers in pediatrics
Background Copy number variants of uncertain significance (VUS-CNVs) pose significant challenges in prenatal counseling for congenital heart malformations (CHMs). Their clinical relevance remains poorly defined, particularly in the absence…
View details →DOI: 10.3389/fped.2026.1696089 Negative / Null Result Report
Kazanskii M, Golikova M, Kasianov A et al. · 2025 · Preprint
We investigated the possibility of estimating the age of ancient biological samples directly from their DNA damage profiles using supervised machine learning. Traditional dating methods such as radiocarbon dating, dendrochronology rely on…
View details →DOI: 10.1101/2025.11.09.687346 Negative / Null Result ReportOpen accessMedicine
Iwata K, Mori N, Ogasawara K · 2025 · Cureus
Introduction Noninvasive methods for assessing liver fibrosis are increasingly important for early detection of advanced liver fibrosis (ALF), particularly in patients with metabolic dysfunction-associated steatotic liver disease (MASLD).…
View details →DOI: 10.7759/cureus.93549 Negative / Null Result ReportOpen accessMedicine
Zych-Krekora K, Sylwestrzak O, Krekora M · 2026 · Journal of clinical medicine
Background/Objectives : Maternal rectovaginal carriage of Group B Streptococcus (GBS, Streptococcus agalactiae ) is a major risk factor for vertical transmission and early-onset neonatal infection. Intrapartum antibiotic prophylaxis…
View details →DOI: 10.3390/jcm15031113 Negative / Null Result ReportOpen accessMedicine
Eldeeb MEA, Mostafa MA, Nagiub TA et al. · 2025 · BMC cardiovascular disorders
Purpose Prior studies have assessed in-stent diameter restenosis (ISDR) in coronary arteries using 64-slice multidetector computed tomography coronary angiography (MDCT-CA) compared to invasive coronary angiography (ICA), which is the gold…
View details →DOI: 10.1186/s12872-025-04836-z Negative / Null Result ReportMedicine
Follansbee CW, Landstrom AP, Aziz PF · 2025 · Cardiac electrophysiology clinics
Congenital long QT syndrome is the most common inherited arrhythmia syndrome and is characterized by prolongation of the QT interval in the absence of structural heart disease or external factors. Disease will often manifest during…
View details →DOI: 10.1016/j.ccep.2025.07.011 Negative / Null Result ReportOpen accessMedicine
Kim DH, Chun MK, Lim SY et al. · 2026 · Pediatric emergency care
Objectives This retrospective observational study evaluated the diagnostic efficiency of routine magnetic resonance imaging (MRI) in pediatric patients with facial palsy (FP) in the emergency department (ED). Methods Pediatric patients…
View details →DOI: 10.1097/pec.0000000000003506 Negative / Null Result ReportOpen accessMedicine
Gürler M, Karaoğlu Ç, Yurtcu EE et al. · 2026 · The Indian journal of medical research
Background and objectives Multiplex molecular panels for meningitis and encephalitis (M&E) allow rapid detection of multiple pathogens directly from cerebrospinal fluid (CSF) samples. Although their use is expanding, real-world data on…
View details →DOI: 10.25259/ijmr_2107_2025 Negative / Null Result ReportOpen accessMedicine
Duan S, Lv T, Zheng L et al. · 2026 · BMC infectious diseases
BACKGROUND: Clostridioides difficile infection (CDI) is a major cause of healthcare-associated diarrhea, with increasing prevalence in China and the Asia-Pacific region. Despite its limited sensitivity, the enzyme immunoassay (EIA) is…
View details →DOI: 10.1186/s12879-026-13252-3 Negative / Null Result ReportOpen accessMedicine
Burdon D, Mullin S, Harris C · 2026 · The British and Irish orthoptic journal
Aim Progressive supranuclear palsy (PSP) is an atypical Parkinsonian disorder which, like other atypical Parkinsonian disorders, displays neurological motor and oculomotor signs at different stages along the disease course. The overlap in…
View details →DOI: 10.22599/bioj.505 Negative / Null Result ReportOpen accessMedicine
Deuitch N, Broadbridge E, Cunningham L et al. · 1993
Clinical characteristics RUNX1 familial platelet disorder with associated myeloid malignancies (RUNX1-FPDMM) is characterized by prolonged bleeding and/or easy bruising and an increased risk of developing a hematologic malignancy.…
Negative / Null Result ReportOpen accessMedicine
Tunçez HÇ · 2026 · Polish journal of radiology
Purpose To evaluate the Kaiser score (KS) on magnetic resonance imaging (MRI) in patients diagnosed with breast cancer and to identify clinical, pathological, and radiological factors associated with false-negative Kaiser score. Material…
View details →DOI: 10.5114/pjr/217365 