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19,847 real negative results, null findings, and replication failures · 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.

Negative / Null Result ReportOpen accessMedicine

Differences in umbilical cord blood gas parameters between women with and without gestational diabetes: a single-center prospective-retrospective cohort study.

Szablewska AW, Zając B · 2026 · Scientific reports

Gestational diabetes mellitus (GDM) is associated with various perinatal complications and may affect neonatal acid-base status. Umbilical cord arterial blood gas (ABG) analysis provides an objective measure of fetal well-being at birth,…

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Negative / Null Result ReportMedicine

Integrating ankle weights into Nordic walking to improve muscle strength and functional outcomes in community-dwelling older adults: A randomized controlled trial.

Soenarti S, Sitorus S, Nugroho MB et al. · 2026 · Rehabilitacion

Sarcopenia represents a leading cause of functional decline in older adults. This randomized controlled trial examined whether the addition of ankle weights to a Nordic walking protocol yields superior outcomes compared with standard…

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Negative / Null Result ReportOpen accessMedicine

Cerebral glycerol during haemorrhagic shock in normal and raised intracranial pressure resuscitated with total REBOA: an experimental porcine study.

Bader S, Magnuson A, Brorsson C et al. · 2026 · European journal of trauma and emergency surgery : official publication of the European Trauma Society

Background Haemorrhagic shock (HS) is frequently associated with secondary cerebral injury due to compromised cerebral perfusion. Resuscitative endovascular balloon occlusion of the aorta (REBOA) is an effective haemorrhage control…

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Negative / Null Result ReportMedicine

2019 Marathon of Rome: Relationship Between Resilience and Coping Strategies in 682 Runners.

Longo UG, Mazzola A, Stelitano G et al. · 2026 · Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine

Objective The aim of this study was to evaluate, in runners participating in the 2019 Rome Marathon, the interaction between resilience and coping and how they are influenced by sex, age, body weight, height, number of weekly training…

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Negative / Null Result ReportOpen accessMedicine

Simultaneous bispectral index and near-infrared spectroscopy monitoring to evaluate two induction protocols in elective cardiovascular surgery.

Eke H, Toprak B, Bozkurt ED · 2026 · Journal of cardiothoracic surgery

BACKGROUND: Laryngoscopy and intubation provoke strong sympathetic activation and may cause hemodynamic instability in cardiovascular surgery patients. Maintaining adequate hypnotic depth and cerebral oxygenation during induction is…

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Negative / Null Result ReportMedicine

Decreased evertor strength following peroneus longus tendon harvest for anterior cruciate ligament reconstruction : an isokinetic muscle strength testing study.

Kotian RN, Ajoy SM, Panduranga R et al. · 2026 · The bone & joint journal

Aims There are conflicting results in the literature regarding the safety of the peroneus longus tendon (PLT) as a potential graft for anterior cruciate ligament (ACL) reconstruction, and no long-term studies with objective assessment…

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Negative / Null Result ReportOpen accessMedicine

Predictive Factors of Functional Prognosis in Patients with Rhegmatogenous Retinal Detachment Treated by Pars Plana Vitrectomy-A Retrospective Study.

Chereji G, Chelaru VF, Nicoară SD · 2026 · Diagnostics (Basel, Switzerland)

Background/Objectives : Rhegmatogenous retinal detachment (RRD) is a surgical emergency that causes vision loss if not properly treated. Pars plana vitrectomy (PPV) is the preferred procedure for most complex RRD cases, with a high success…

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Negative / Null Result ReportOpen accessMedicine

Genetically predicted TTK inhibition and its association with reduced breast cancer risk: a two-step Mendelian randomization study of potential gut microbiome mediation.

Liu J, Liu M, Xu Y et al. · 2026 · Clinics (Sao Paulo, Brazil)

Background BOS172722, a selective TTK inhibitor, shows promise for Breast Cancer (BC) treatment. The role of gut microbiota as a potential mediator in this process has not been established. This Mendelian Randomization (MR) study…

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Negative / Null Result ReportMedicine

Effects of different hyrax maxillary expansion protocols compared with novel magnetic expansion on the pharyngeal airway and maxillary sinus spaces: A retrospective CBCT-based observational study.

Algahefi AL, Alhammadi MS, Li Z et al. · 2026 · American journal of otolaryngology

Purpose To evaluate three-dimensional changes in the maxillary sinus (MS) and pharyngeal airway space (PAS) following rapid (RME), slow (SME), and magnetic maxillary expansion (MME) using cone-beam computed tomography (CBCT). Methods This…

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Negative / Null Result ReportOpen accessMedicine

Comparison of Lower Limb Muscle Strength Imbalances and Gait Performance in Postmenopausal Women with Healthy and Low Bone Mineral Density.

Svobodová L, Kasović M, Vodicka T et al. · 2026 · International journal of women's health

Introduction Osteoporosis and osteopenia increase the risk of fractures, impair physical function, and may lead to loss of independence in postmenopausal women. This study examined differences in muscle strength imbalances and gait…

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Negative / Null Result ReportOpen accessMedicine

Assessment of changes in selected parameters of Arnett's soft tissue cephalometric analysis (STCA) in patients undergoing SARME/SARPE.

Nowak R, Olejnik A, Zawiślak E et al. · 2026 · Head & face medicine

Background Maxillary constriction in adults often requires surgically assisted maxillary expansion. While skeletal and dental changes are well described, soft-tissue effects remain less clear. This study evaluated soft-tissue changes using…

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Negative / Null Result ReportOpen accessMedicine

Impact of therapeutic oral health education program in individuals with systemic sclerosis: A prospective study.

Mahajan A, Upadhyay M, Reddy RN et al. · 2026 · Journal of education and health promotion

Background Systemic sclerosis is an autoimmune disorder characterized by progressive fibrosis which affects skin and internal organs. There is also involvement of oral cavity seen as microstomia which affects oral hygiene and subsequently,…

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Negative / Null Result ReportOpen accessMedicine

Assessment of apical debris extrusion with three nickel-titanium rotary systems using conventional and lyophilization-based quantification methods.

Hegde NN, Attavar S, Banerjee A et al. · 2026 · Journal of conservative dentistry and endodontics

Background Apical extrusion of debris during root canal preparation is inevitable and may contribute to postoperative pain and periapical inflammation. The extent of extrusion varies with instrument design and motion. ProTaper Next (PTN),…

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Negative / Null Result ReportOpen accessMedicine

Shear Bond Strength of a Light-Cured and a Dual-Cured Universal Adhesive to Primary and Permanent Dentin: An In Vitro Study.

Fousekis E, Arhakis A, Arapostathis K et al. · 2026 · Biomimetics (Basel, Switzerland)

The aim of the study was to evaluate the immediate and aged shear bond strength (SBS) of a dual-cured and a light-cured universal adhesive to primary and permanent dentin. Twenty caries-free primary molars and twenty permanent third molars…

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Negative / Null Result ReportOpen accessMedicine

Intraperitoneal Polypropylene Mesh in Clean, Potentially Septic, and Controlled Contamination Fields: An Experimental Rat Study.

Makrantonakis A, Mantzoros I, Ioannidis O et al. · 2026 · Medicina (Kaunas, Lithuania)

Background and Objectives : Intraperitoneal onlay mesh (IPOM) reduces ventral/incisional hernia recurrence but raises concern for adhesions and infection, particularly when the operative field is not strictly clean. We aimed to determine…

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Negative / Null Result ReportOpen accessMedicine

Prognostic Value of the Platelet-to-Lymphocyte Ratio in Patients With Acute Coronary Syndrome and Its Correlation With Angiographic Findings.

Seetharama DB, Prasad K, Prakash VR et al. · 2026 · Cureus

Introduction Acute coronary syndrome (ACS) is a major manifestation of coronary heart disease and is associated with significant morbidity and mortality. Inflammatory and thrombotic mechanisms play an important role in its pathogenesis.…

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Negative / Null Result ReportMedicine

The effect of three different root canal filling materials on postoperative pain in teeth with irreversible pulpitis: a randomized clinical trial.

Eminsoy Avcı AT, Yavuz B, Karakaya B et al. · 2026 · BMC oral health

Background This randomized clinical trial aimed to compare postoperative pain (PP) and analgesic consumption following single-visit root canal treatment using two calcium silicate-based sealers (BioMTA + and Well-Root PT) and one epoxy…

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Negative / Null Result ReportOpen accessMedicine

A Comparative Study of Intra-articular Steroid Injection Alone Versus Steroid Injection Combined with Hydroplasty and Manipulation in the Treatment of Frozen Shoulder.

Thakur A, Singh BP, Parihar YS · 2026 · Cureus

Background Frozen shoulder (adhesive capsulitis) is a common cause of shoulder pain and disability in middle-aged adults, characterized by progressive pain and restriction of both active and passive range of motion. Despite multiple…

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Negative / Null Result ReportOpen accessMedicine

Bony Path Assisted Suturing and Tendon-to-Tendon Suturing Technique for External Rotator Repair After Hip Arthroplasty: A Randomized-Controlled Trial.

Wen Z, Ye Y, Chen H et al. · 2026 · Indian journal of orthopaedics

Objective To compare and verify the effectiveness of tendon-to-bone suture technique for the repair of external rotator injuries after hip arthroplasty. Methods This was a prospective, randomized, controlled study including 178 patients…

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