Negative / Null Result ReportMedicine
de Oliveira RG, Fujii T, Younus I et al. · 2026 · Spine deformity
Purpose To evaluate the early postoperative relationship between changes in distal and proximal lumbar lordosis and the L1-pelvic angle in adult spinal deformity surgery. Methods A retrospective review was performed of 120 adult spinal…
View details →DOI: 10.1007/s43390-026-01482-z Negative / Null Result Report
Avelar-Pereira B, Spotorno N, Orduña Dolado A et al. · 2026 · Preprint
Alzheimer’s disease (AD) neuropathological changes can be detected with blood-based biomarkers during the long preclinical phase that precedes clinical diagnosis. Tau phosphorylated at threonine 217 (p-tau217) has been found to closely…
View details →DOI: 10.64898/2026.04.16.718397 Negative / Null Result ReportMedicine
Binnie T, Smith A, Ng L et al. · 2026 · Gait & posture
Background Reduced knee confidence is common in people with knee osteoarthritis and may influence how they engage with physical activity. A lack of confidence may lead an individual to adopt compensatory movement strategies, such as…
View details →DOI: 10.1016/j.gaitpost.2026.110267 Negative / Null Result ReportMedicine
Hakimi S, Kirkwood R, Phillips SM et al. · 2026 · The international journal of behavioral nutrition and physical activity
Background Mobility is a cornerstone of healthy ageing typically assessed using self-report and performance-based measures. Recent research suggests these measures are poor proxies for real-world mobility. Device-derived measures of…
View details →DOI: 10.1186/s12966-026-01939-4 Negative / Null Result Report
Cagli F, Yetkin MO, Gulseren V et al. · 2026 · Preprint
Abstract Background Polycystic ovary syndrome (PCOS) is associated with chronic anovulation and prolonged unopposed estrogen exposure, which may contribute to endometrial dysfunction. Trefoil factor 3 (TFF3) is an estrogen-responsive…
View details →DOI: 10.21203/rs.3.rs-9258003/v1 Negative / Null Result ReportMedicine
Gómez-Barrado JJ, Porras-Ramos Y, Romero-Castro MJ et al. · 2026 · Journal of clinical lipidology
Background Despite optimal lipoprotein cholesterol control, patients with chronic coronary syndrome (CCS) exhibit substantial residual cardiovascular risk. Lipoprotein(a) (Lp[a]) is an independent cardiovascular risk factor, primarily…
View details →DOI: 10.1016/j.jacl.2026.05.221 Negative / Null Result ReportMedicine
Lisa T, Maria CA, Luca BB et al. · 2026 · European journal of ophthalmology
PurposeThis study assessed retinal non-perfusion areas (RNPAs) and vascular density (VD) in the superficial (SCP) and deep (DCP) capillary plexuses of diabetic patients across three stages of diabetic retinopathy (DR): no DR (stage 0),…
View details →DOI: 10.1177/11206721261444772 Negative / Null Result Report
Celik B, Kaya M, Emre S · 2025 · Preprint
Introduction: Chronic spontaneous urticaria (CSU) is a mast cell driven multifactorial disorder with complex pathogenesis. While association between CSU and internal parasites investigated, the association of ectoparasites such as Demodex…
View details →DOI: 10.22541/au.176101755.52017988/v1 Negative / Null Result ReportMedicine
Dogan E, Sevinc N, Ozdemir M et al. · 2026 · Nutricion hospitalaria
Background it is known that aflatoxin M1 can be transmitted to newborns through breast milk and may cause serious health problems. We aimed to determine whether the presence of aflatoxin M1 in breast milk has a role in the etiology of…
View details →DOI: 10.20960/nh.06445 Negative / Null Result Report
Mustamir AA, Lacante SA, Mizuno T et al. · 2026 · Preprint
Abstract Background Endolimax nana is a common intestinal archamoebid within Evosea (Amoebozoa), alongside genera such as Entamoeba , Iodamoeba , and Mastigamoeba . Despite its frequent colonization of humans, it has received limited…
View details →DOI: 10.21203/rs.3.rs-9530286/v1 Negative / Null Result ReportMedicine
Akkurt B, Bülez A · 2025 · Breastfeeding medicine : the official journal of the Academy of Breastfeeding Medicine
Objective: This study aimed to investigate the association between infant gender and both postpartum depression and breastfeeding duration at multiple time points during the postpartum period. Methods: A prospective longitudinal study was…
View details →DOI: 10.1177/15568253251386877 Negative / Null Result ReportOpen accessMedicine
Nemes A, Ambrus N, Lengyel C · 2026 · Journal of clinical medicine
Introduction. Left ventricular (LV) function can be characterized by numerous parameters, the most well-known being the ejection fraction (EF), derived from LV end-systolic and end-diastolic volumes (ESV and EDV, respectively) throughout…
View details →DOI: 10.3390/jcm15103589 Negative / Null Result Report
Tine A, Diallo MA, Gaye A et al. · 2026 · Preprint
Abstract Background: Artemisinin-based combination therapies (ACTs) remain the cornerstone of malaria treatment in Africa. However, the emergence of Plasmodium falciparum artemisinin partial resistance associated with mutations in the…
View details →DOI: 10.21203/rs.3.rs-9272508/v1 Negative / Null Result ReportMedicine
Santiago MV, Olmedillas H, Sáinz J et al. · 2026 · Stress and health : journal of the International Society for the Investigation of Stress
Chronic stress, common in university students and particularly pronounced in women, negatively impacts health. Heart Rate Variability (HRV), an autonomic balance measure, is influenced by stress, physical activity (PA), and the menstrual…
View details →DOI: 10.1002/smi.70167 Negative / Null Result ReportMedicine
Gil P, Rojo C, Martín ML et al. · 2026 · Journal of pediatric gastroenterology and nutrition
Objectives Owing to the regulatory effect of the immune response associated with Helicobacter pylori (H. pylori) a protective role for this infection in the development of atopic conditions in children has been postulated. We aim to study…
View details →DOI: 10.1002/jpn3.70237 Negative / Null Result ReportMedicine
Sharma AK, Huda RK, Alam SP et al. · 2026 · Indian journal of community medicine : official publication of Indian Association of Preventive & Social Medicine
Background Non-communicable diseases (NCDs) are the fastest-growing global health burden, and air pollution is a major threat to human health. Growing evidence suggests that air pollution especially PM 2.5 is associated with diabetes…
View details →DOI: 10.4103/ijcm.ijcm_209_25 Negative / Null Result Report
Wolfram C, Vogl TJ, Eichler K et al. · 2026 · Preprint
Abstract Purpose To evaluate therapeutic effectiveness and safety of lipiodol-based conservative transpedal lymphangiography in sealing persistent inguinal lymphatic fistulas after lymphadenectomy, and to determine whether therapeutic…
View details →DOI: 10.21203/rs.3.rs-8673450/v1 Negative / Null Result ReportMedicine
Khabbazi A, Askari L, Faramarzi E et al. · 2026 · Clinical rheumatology
Aim Palindromic rheumatism (PR) is a periodic rheumatic disease characterized by recurrent attacks of pain and swelling, affecting articular and periarticular structures. Despite the evidence supporting the association between overweight…
View details →DOI: 10.1007/s10067-026-08019-9 Negative / Null Result ReportMedicine
Kharouf F, Mehta P, Carrizo Abarza V et al. · 2025 · Rheumatology (Oxford, England)
Objectives Evidence for the association between MTX use and liver fibrosis in PsA remains inconclusive. We aimed to explore the frequency of liver fibrosis in PsA and identify associated factors including cumulative MTX dose and metabolic…
View details →DOI: 10.1093/rheumatology/keaf282 Negative / Null Result ReportMedicine
Nasr AJ, Wang H, Khazzam M et al. · 2026 · PM & R : the journal of injury, function, and rehabilitation
Background Fatty infiltration and muscle atrophy strongly influence clinical outcomes in patients with rotator cuff tears. Emerging quantitative techniques integrated with brightness-mode ultrasound and shear wave elastography (SWE) have…
View details →DOI: 10.1002/pmrj.70097 Negative / Null Result ReportOpen accessMedicine
Chifamba LV, Parlar SC, Liu L et al. · 2026 · HGG advances
Oxidative stress has been implicated in Parkinson disease (PD). Genes involved in PD, such as PRKN, PINK1, and PARK7, contribute to oxidative stress in dopaminergic neurons. The X-linked G6PD gene encodes glucose 6-phosphate dehydrogenase,…
View details →DOI: 10.1016/j.xhgg.2025.100555 Negative / Null Result Report
Chifamba LV, Parlar SC, Liu L et al. · 2025 · Preprint
Oxidative stress has been implicated in Parkinson’s disease (PD). Genes involved in PD, such as PRKN, PINK1 and PARK7 , contribute to oxidative stress in dopaminergic neurons. The X-linked G6PD gene encodes glucose 6-phosphate…
View details →DOI: 10.1101/2025.04.23.25324774 Negative / Null Result ReportOpen accessMedicine
Bennett FJ, Oppat KM, Zaidi MY et al. · 2026 · Surgical oncology insight
Background Cytoreductive surgery (CRS) with or without heated intraperitoneal chemotherapy (HIPEC) represents a viable therapy for select patients with colorectal cancer (CRC) peritoneal metastases. Given recurrence rates, challenges…
View details →DOI: 10.1016/j.soi.2025.100210 Negative / Null Result ReportOpen accessMedicine
Beatty CJ, Landry SA, Mann DL et al. · 2026 · Frontiers in sleep
Objectives Weight loss is often recommended for individuals with obesity and OSA, however, weight loss is particularly hard for this population. This study investigates how weight and weight change are associated with sleep health in…
View details →DOI: 10.3389/frsle.2026.1828583 Negative / Null Result ReportMedicine
Cruz CA, Rodriguez ER, Thawani M et al. · 2025 · Leukemia & lymphoma
Delays in time to treatment (TTT) have been shown to affect cancer survival, yet this has not been investigated in adolescent and young adult (AYA) Hodgkin lymphoma (HL) patients. This retrospective analysis included 508 patients with TTT…
View details →DOI: 10.1080/10428194.2025.2499607 Negative / Null Result ReportMedicine
Acker SN, Prendergast C, Inge TH et al. · 2024 · Journal of pediatric surgery
Introduction There is wide variation in the cost of disposable operating room supplies between surgeons performing the same operation at the same institution. The general relationship between variation in disposable supply cost and patient…
View details →DOI: 10.1016/j.jpedsurg.2024.03.046 Negative / Null Result ReportOpen accessMedicine
Duyuler S, Türker Duyuler P, Kalaycı S et al. · 2026 · Medicina (Kaunas, Lithuania)
Background and Objectives : Whole Blood Viscosity (WBV), estimated using the De Simone formula, is a key hemodynamic parameter linked to endothelial dysfunction and atherosclerosis. Its association with significant coronary calcification,…
View details →DOI: 10.3390/medicina62010169 Negative / Null Result ReportMedicine
Cinkilli Aktağ E, Yalçin SS, Yіrün A et al. · 2025 · International journal of environmental health research
Bisphenol A (BPA) has negative impact on human health. This study aims to explore the association between the levels of BPA and 25(OH) vitamin D in breastmilk. BPA exposure and vitamin D sources were recorded on the study form. Breastmilk…
View details →DOI: 10.1080/09603123.2024.2412118 Negative / Null Result ReportOpen accessMedicine
Emilsson ÖI, Malinovschi A, Johnsson Å et al. · 2025 · Thorax
Background Nocturnal gastro-oesophageal reflux (nGER) is common in people with respiratory diseases, but its association with pulmonary abnormalities is not known. Aim Investigate the association between nGER and pulmonary abnormalities on…
View details →DOI: 10.1136/thorax-2024-222570 Negative / Null Result ReportOpen accessMedicine
Bratseth V, Kindberg KM, Warlo EMK et al. · 2026 · Frontiers in cardiovascular medicine
Introduction Coronary artery disease (CAD) is the clinical manifestation of atherosclerosis, an inflammatory disorder of the coronary arteries, characterized by endothelial dysfunction, lipid accumulation, immune activation, and formation…
View details →DOI: 10.3389/fcvm.2026.1759117 