Negative / Null Result ReportMedicine
Haksever M, Taşdemir D · 2026 · BMC pregnancy and childbirth
To evaluate the association between maternal hemoglobin and ferritin levels and fetal cortical maturation assessed by neurosonography between 30 and 34 weeks of gestation. This prospective observational study included 187 singleton…
View details →DOI: 10.1186/s12884-026-09529-9 Negative / Null Result ReportOpen accessMedicine
Kaushik A, Jaiswal A, Priya B et al. · 2025 · Journal of family medicine and primary care
Background Breast cancer is the most common cancer in women across the world. Immune cells can detect and destroy cancer cells. However, cancer cells acquire certain immune evasion mechanisms such as PD-1+ T-cells, to combat immune…
View details →DOI: 10.4103/jfmpc.jfmpc_320_25 Negative / Null Result ReportOpen accessMedicine
Zhou X · 2026 · Translational psychiatry
Low titers of blood circulating natural anti-NMDAR1 autoantibodies were reported in ~10% of the general human population. Their potential effects on NMDAR functions in the brain, however, remain unknown. We developed a new method to more…
View details →DOI: 10.1038/s41398-026-03878-x Negative / Null Result Report
Isikoglu BD, Senler FC · 2026 · Preprint
Abstract Purpose. Insomnia is a heterogeneous symptom cluster of multiple etiologies, frequently encountered in oncology patients, and chemotherapy has been implicated as a contributing factor. We aimed to evaluate the effects of…
View details →DOI: 10.21203/rs.3.rs-9973460/v1 Negative / Null Result Report
Coban S, Yavuz S, Dogan C et al. · 2026 · Preprint
Abstract Background Emergency department overcrowding is a persistent global public health issue, often driven by non-urgent visits. Health literacy is considered a key determinant of appropriate healthcare utilization. Objective This…
View details →DOI: 10.21203/rs.3.rs-9744500/v1 Negative / Null Result ReportOpen accessMedicine
Hiroshimaya T, Iwai K, Marutani M et al. · 2026 · Scientific reports
This study aimed to clarify the relationship between periodontitis and non-alcoholic fatty liver disease (NAFLD). A survey was conducted with 2,453 participants who visited the dental clinic at the Asahi University Hospital. Periodontitis…
View details →DOI: 10.1038/s41598-026-40128-y Negative / Null Result ReportOpen accessMedicine
Haddad A, Zabari Parnis E, Stein N et al. · 2026 · Vaccines
Background/Objective : The emergence of the COVID-19 pandemic has raised significant concerns regarding its impact on immune-mediated diseases, particularly with respect to disease induction and exacerbation. We aimed to investigate the…
View details →DOI: 10.3390/vaccines14040289 Negative / Null Result ReportMedicine
Wu Z, He S, Zhu F et al. · 2026 · Frontiers in endocrinology
Objective Copper overload has been implicated in impaired β -cell function and insulin resistance through oxidative stress and inflammatory pathways. As a major lipoprotein component involved in lipid oxidation, apolipoprotein B (apoB) may…
View details →DOI: 10.3389/fendo.2026.1764209 Negative / Null Result ReportOpen accessMedicine
Macian N, Dualé C, Delay M et al. · 2026 · European journal of pain (London, England)
Background Fibromyalgia is a syndrome characterised by widespread chronic pain, which is believed to be mediated by a state of central sensitisation (CS). Based on the hypothesis that CS itself could have genetic determinants, our aim was…
View details →DOI: 10.1002/ejp.70308 Negative / Null Result ReportOpen accessMedicine
Alharthy N, Alreefi M, Alsenani M et al. · 2026 · Pediatric health, medicine and therapeutics
Background Among children younger than 5 years, infectious conditions account for the majority of pediatric emergency department visits. Due to nonspecific presentation, early identification of Sepsis and serious bacterial infection is…
View details →DOI: 10.2147/phmt.s589691 Negative / Null Result Report
Uka-Kalu EC, Egesimba NC · 2026 · Preprint
Abstract Background: Drowning is a significant but often neglected public health issue, with low- and middle-income countries bearing a disproportionate burden. Young adults, particularly university students, represent a high-risk group…
View details →DOI: 10.21203/rs.3.rs-9501273/v1 Negative / Null Result Report
Buhari HM, Akpan SN, Ballah FM et al. · 2026 · Preprint
Abstract Foodborne illnesses remain a significant public health challenge in low and middle-income countries. Local food vendors operating in informal settings represent a critical point of intervention, yet their food hygiene knowledge…
View details →DOI: 10.21203/rs.3.rs-9811667/v1 Negative / Null Result ReportMedicine
Önder N, Muratoglu K · 2026 · Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment
Peanuts are among the most clinically important food allergens and may cause severe reactions even at very low exposure levels. This study investigated the presence of peanut residues in packaged baby biscuits marketed on the European side…
View details →DOI: 10.1080/19440049.2026.2683667 Negative / Null Result Report
Zeng Y, Zhu Y, Liu W et al. · 2026 · Preprint
Abstract Background When the function of one kidney is impaired or lost, the contralateral kidney may exhibit varying degrees of compensatory response. However, the influencing factors and underlying mechanisms of renal compensation remain…
View details →DOI: 10.21203/rs.3.rs-9853817/v1 Negative / Null Result Report
Ntombana L, Dlatu N, Hosu MC · 2026 · Preprint
Background: /Objectives: The growing burden of multidrug-resistant tuberculosis (MDR-TB), driven by poor treatment adherence and limited diagnostic access, has complicated disease control efforts. The recent introduction of shorter, less…
View details →DOI: 10.20944/preprints202606.0908.v1 Negative / Null Result ReportMedicine
Mirmosayyeb O, Barzegar M, Rezaei M et al. · 2026 · Neurologia
Purpose Multiple sclerosis (MS) is a debilitating disease accompanied by physical and mental comorbidities. Little is known about the relation between different comorbidities and health-related quality of life (HRQOL) in people with MS…
View details →DOI: 10.1016/j.nrleng.2025.101901 Negative / Null Result Report
Kumar MC, Ashok A · 2026 · Preprint
Abstract Background Cardiovascular diseases (CVDs) remain the leading cause of mortality globally. Cardiac rehabilitation (CR) is an effective intervention to improve recovery and reduce recurrence; however, nurses’ knowledge and attitude…
View details →DOI: 10.21203/rs.3.rs-9649614/v1 Negative / Null Result ReportMedicine
Kanani P, Shinde V, Bhimani K et al. · 2026 · Annals of African medicine
Background Shock is a critical, life-threatening syndrome defined by a state of global hypoperfusion that results in inadequate oxygen and nutrient delivery to tissues, leading to cellular dysfunction and ultimately, organ failure. Despite…
View details →DOI: 10.4103/aam.aam_276_26 Negative / Null Result ReportOpen accessMedicine
Kądziela M, Migdalska-Sęk M, Domańska-Senderowska D et al. · 2026 · International journal of molecular sciences
Vitiligo is a chronic autoimmune skin disorder characterized by progressive melanocyte loss and depigmented skin lesions, whose pathogenesis has been attributed to genetic and immunological factors. The aim of this exploratory study was to…
View details →DOI: 10.3390/ijms27115084 Negative / Null Result ReportMedicine
Anderson N, Kimlin K, O'Rourke JL et al. · 2026 · Pediatric research
Background Congenital hearing loss can significantly affect childhood development, yet more than half of affected infants present without identifiable risk factors. A possible association between maternal diabetes and congenital hearing…
View details →DOI: 10.1038/s41390-026-04846-3 Negative / Null Result ReportMedicine
Li Y, Zhu YX, Qiu Y et al. · 2026 · Clinical nephrology
Objective The association between the atherogenic index of plasma (AIP) and chronic kidney disease (CKD) among individuals with different metabolic syndromes remains inadequately characterized. The aim of this study is to assess the…
View details →DOI: 10.5414/cn111841 Negative / Null Result ReportMedicine
Mostofi K, Caragliano G · 2026 · The Journal of hospital infection
Background Surgical site infections (SSIs) are a major complication of spinal surgery. The influence of tattoos overlying the operative incision has not been previously evaluated as a risk factor in this context. Methods Retrospective…
View details →DOI: 10.1016/j.jhin.2026.06.006 Negative / Null Result Report
Chen F, You R, Liu Y et al. · 2026 · Preprint
Background and Aims MASLD has become the most prevalent chronic liver disease globally. Although MVPA and plasma fatty acids have been individually studied in relation to metabolic health, their independent and combined associations with…
View details →DOI: 10.64898/2026.06.05.26354982 Negative / Null Result ReportMedicine
Karabulut Ü, Yolaçan R, Ebik B et al. · 2026 · BMC gastroenterology
Background Duodenogastric reflux (DGR), defined as the retrograde flow of duodenal contents into the stomach, has an incompletely understood pathophysiology. This study aimed to evaluate the relationship between DGR and clinical,…
View details →DOI: 10.1186/s12876-026-05066-z Negative / Null Result ReportOpen accessMedicine
Maher AA, Maad AH, Al-Jaufy AY et al. · 2026 · Frontiers in medicine
Background Burn wound infections (BWIs) represent a major cause of morbidity and mortality among hospitalized burn patients. Pseudomonas aeruginosa is recognized for its ability to acquire multidrug resistance (MDR) and form biofilms that…
View details →DOI: 10.3389/fmed.2026.1762684 Negative / Null Result Report
Alayande AA, Williams JE, Olawuni DA et al. · 2026 · Preprint
Abstract Introduction: Abnormal anthropometric indices in children and adolescents, can potentially increase the risk of developing elevated blood pressure at a younger age. Children and adolescents with abnormal blood pressure at an early…
View details →DOI: 10.21203/rs.3.rs-8625118/v1 Negative / Null Result ReportOpen accessMedicine
Böckels L, Lisnic V, Alexa D et al. · 2026 · Journal of clinical medicine
Background/Objectives: Relapsing-remitting multiple sclerosis (RRMS) is frequently associated with anxiety and depressive symptoms, which significantly impact quality of life and clinical outcomes. The Hospital Anxiety and Depression Scale…
View details →DOI: 10.3390/jcm15114165 Negative / Null Result ReportMedicine
Shimada H, Lee S, Doi T et al. · 2026 · Gerontology
Introduction Walking speed is widely recognized as an informative indicator of physical capability in later life and is frequently used to evaluate mobility and functional health in older adults. Although the measurement of community…
View details →DOI: 10.1159/000550778 Negative / Null Result Report
Demirbaş SC, Kaba İ, Yilmaz M et al. · 2026 · Preprint
Abstract Objective Childhood obesity is a significant public health issue. Meteorin-like protein (Metrnl) is a newly identified adipomyokine that plays a role in energy metabolism and inflammatory processes. The aim of this study was to…
View details →DOI: 10.21203/rs.3.rs-9763274/v1 Negative / Null Result ReportOpen accessMedicine
Rosi Júnior J, Telles JPM, Santana LS et al. · 2026 · Arquivos de neuro-psiquiatria
Background Alpha 1-antitrypsin (A1AT) helps maintain vascular-wall integrity, but its role in the formation and rupture of intracranial aneurysms is unclear. Objective To compare A1AT levels between patients with ruptured and unruptured…
View details →DOI: 10.1055/s-0046-1820525 