11,417 real negative results, null findings, and replication failures in Medicine · Negative / Null Result Report. Search the index →
WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record compiled from open scholarly databases; the abstract is shown in full only where the paper is openly licensed, otherwise a short excerpt under fair use. Classifications are automated and approximate.
Feng H, Gu J, Zhang J et al. · 2026 · Obesity surgery
Background Laparoscopic sleeve gastrectomy (LSG) provides durable, stable weight loss and ameliorates renal dysfunction, hyperuricemia (HUA), and other obesity-related metabolic disorders. Renal function is tightly linked to serum uric…
View details →Gourgouta M, Athanassiou CG, Arthur FH et al. · 2026 · Journal of economic entomology
This study evaluated the effects of sorghum variety and temperature on the population growth, frass production, kernel damage, and weight loss caused by Oryzaephilus surinamensis (L.) and Trogoderma variabile, Ballion, two common…
View details →An N, Watanabe D, Miyachi M · 2026 · European journal of applied physiology
Purpose Excess post-exercise energy expenditure (EPEEE) refers to sustained elevation in energy expenditure above resting levels after exercise. This study compared the effect of morning (AM) and evening (PM) resistance exercise on EPEEE,…
View details →Liu R, Zhang H, Liu C et al. · 2026 · Communications biology
Everyday speech perception often occurs under concurrent cognitive demands, but it remains unclear how speech-extrinsic load influences the neural processing of continuous speech. Here, electroencephalography (EEG) recordings from 29…
View details →van Vliet KE, Lobbezoo F, van Splunter AP et al. · 2026 · BMC oral health
BACKGROUND: We hypothesized that wearing a mouthguard may affect salivary flow and composition. Therefore, we investigated the impact of mouthguard use on saliva secretion rate and some salivary constituents under different jaw activities.…
View details →Takatori N, Uchiyama Y, Ito H et al. · 2026 · Journal of tissue viability
Background Intraoperative pressure-related skin injuries remain a concern during surgery under general anaesthesia. Although interface pressures have been evaluated in various surgical positions, sacral pressure in the beach-chair position…
View details →Harun AS, Shikder AHMZH, Moni SD et al. · 2026 · Journal of oral rehabilitation
Background Migraine has been associated with altered nociceptive processing and may influence the clinical presentation of odontogenic pain. This study evaluated whether migraine is associated with preoperative endodontic pain,…
View details →Zhan C, Liu S, Kang W et al. · 2026 · Environmental pollution (Barking, Essex : 1987)
Black carbon (BC) is an important component of soil organic carbon (SOC), with implications for carbon sequestration and environmental quality, yet its variability across contrasting urban systems remains insufficiently understood. This…
View details →Aydilek A, Erdem Y · 2026 · BMC surgery
Background Posterior malleolar fractures accompanying trimalleolar ankle injuries may compromise joint stability and lead to long-term functional impairment. However, the impact of posterior malleolar fragment (PMF) size on postoperative…
View details →Urashima T, Yabuno T, Imanishi K et al. · 2026 · Surgical endoscopy
Background Few studies have directly compared the incidence of primary postoperative ileus (primary POI) between robotic surgery (RS) and laparoscopic surgery (LS) for rectal resection. Methods This retrospective cohort study included…
View details →Fujii S, Hirai S, Fujita K et al. · 2026 · Neurologia medico-chirurgica
Flow diverter braid deformation is occasionally observed after flow diverter placement. However, the frequency and clinical significance of flow diverter braid deformation in non-drawn filled tube wire devices remain unclear. This…
View details →Ntaka KL, Mpanya D, Adamu UG et al. · 2026 · Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions
Background The radial artery is the preferred access for performing diagnostic coronary angiograms (DCA). However, data on the safety and efficacy of radial compared to femoral access in low- and middle-income countries is limited. Aims…
View details →Ižarik Verešpejová A, Grendár M, Kertys M et al. · 2026 · Biomolecules
Bile acids (BA) are increasingly recognized as signaling molecules involved in metabolic regulation and inflammatory processes, both of which are relevant to Parkinson's disease (PD). However, their role in PD and disease progression…
View details →Gucluer Kocaoglu MN, Kahraman H, Nayman S et al. · 2026 · BMC infectious diseases
Background Staphylococcus aureus bacteremia (SAB) is associated with substantial short-term mortality, but the relative contributions of methicillin resistance, treatment adequacy, and host-related factors to outcome remain unclear. This…
View details →Sun J, Xiong Y, Qiu J et al. · 2026 · Annals of surgical oncology
Background Locally advanced thymic epithelial tumors (TETs) may extend into the adjacent brachiocephalic vein (BCV), creating major technical challenges for resection. While BCV reconstruction is traditionally considered after tumor…
View details →Lis M, Miłuch T, Krupa R et al. · 2026 · Scientific reports
Major depressive disorder (MDD) frequently co-occurs with obesity, suggesting shared neuroendocrine mechanisms. Ghrelin, a hormone involved in appetite regulation, stress response, and reward processing, has been proposed as a biological…
View details →Chao M, Wang Y, Gu L · 2026 · The Psychiatric quarterly
Short video platforms like TikTok are increasingly popular among adolescents. The study investigated the correlation between adolescent short video use (SVU) patterns and psychological well-being. Using a sample of 2,344 Chinese junior and…
View details →Oteir A, Husein M, Alhawatmeh H et al. · 2026 · International emergency nursing
Background Spinal motion restriction (SMR) remains a fundamental component of trauma care, yet its routine application has been increasingly questioned. Evidence supporting selective SMR has grown; however, limited data exist on the…
View details →Suraju MO, Longbottom B, Peteson JA et al. · 2026 · American journal of surgery
Introduction Factors influencing mortality among pancreatic ductal adenocarcinoma (PDAC) patients who achieve pathologic complete response (pCR) following neoadjuvant therapy have not been previously well studied. Methods Adult PDAC…
View details →Kate A, Wannapanich T, Mandell J et al. · 2026 · American journal of ophthalmology
Purpose To compare clinical characteristics, microbiological profiles, treatment strategies, and outcomes between contact lens-associated (CL) and non-contact lens-associated (non-CL) fungal keratitis. Design Retrospective, comparative…
View details →Fresa R, Napoli A, Bitterman O · 2026 · Acta diabetologica
Introduction the use of Automated Insulin Delivery (AID) systems has increased in pregnant women with type 1 diabetes (DM1). To date, little data exist regarding glucose control and insulin modifications with AID in automode during…
View details →Lee YJ, Moon SW · 2026 · Journal of clinical medicine
Background/Objectives : In February 2024, a nationwide medical crisis in South Korea caused a massive withdrawal of resident physicians. We described changes in patient characteristics and early clinical outcomes among emergency department…
View details →Solazzo EM, Jarabana SG, Baird J et al. · 2026 · Rhode Island medical journal (2013)
Objectives Pre-hospital emergency care depends on reliable infrastructure. On December 11, 2023, the westbound span of the Washington Bridge connecting eastern and western Rhode Island (RI) closed emergently due to structural issues. This…
View details →Shapiro G, Kamm JM, Wintrode M et al. · 2026 · The Clinical neuropsychologist
Objective: Evaluations for attention-deficit/hyperactivity disorder (ADHD) in adulthood typically incorporate both self-report questionnaires and performance-based cognitive testing. Extant research has demonstrated weak or absent…
View details →Majewski MS, Hanć A, Krajewska-Włodarczyk M et al. · 2026 · Nutrients
Background/Objectives : Red beetroot ( Beta vulgaris L.) is recognized for its antioxidant, anti-inflammatory, and metabolic properties. This study evaluated the effects of two beetroot cultivars ( Boldor and Wodan ) on blood serum…
View details →Wen YP, Brauer ER, Choi S et al. · 2026 · BMC public health
Background Cancer survivors are twice as likely to experience psychological distress, with racial and ethnic minorities reporting higher distress and healthcare needs compared to non-Hispanic White Americans. However, this group is more…
View details →Maeda K, Funahashi H, Tokutake K et al. · 2026 · International orthopaedics
Purpose This study aimed to evaluate postoperative outcomes, including clinical results, radiological assessments, and complications, in patients over 50 years old with nondisplaced femoral neck fractures (Garden classification I-II)…
View details →Liu Y, Liu L, Wang J et al. · 2026 · Endocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists
Objective Nephrotoxicity of bisphosphonates limits their utility in the management of severe hypercalcemia among patients with primary hyperparathyroidism (PHPT) and impaired renal function. It remains unclear whether denosumab is an…
View details →Zheng J, Chen M, Fu J · 2026 · BMC oral health
Background This retrospective cohort study evaluated a Locator-bilateral segmental bar concept (LBSB) for maxillary implant-supported overdentures and compared it with a conventional rigid bar concept (CRB) in terms of implant survival,…
View details →Gentile T, Vanacore S, Caputo M et al. · 2026 · Children (Basel, Switzerland)
Background/objectives Dental anxiety represents a major challenge in paediatric dentistry and is a frequent cause of non-cooperative behaviour during dental treatment. Nitrous oxide/oxygen inhalation conscious sedation is widely used to…
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