11,324 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.
Hazell, Khazova, O'Mahoney · 2026 · Antioxidants (Basel, Switzerland)
Conflicting evidence exists on whether blue or red light modulates nitric oxide (NO) release within skin cells. Using environmentally relevant doses, irradiances and spectral distribution akin to low-level sunlight, we provide evidence…
View details →Tas, Erturk · 2026 · Indian journal of surgical oncology
Due to controversial results, the clinical impact of sex in pancreatic cancer has not been fully clarified. We aimed to investigate the clinical significance of sex in patients with pancreatic cancer in this study. A total of 334…
View details →Elgayar · 2026 · Scientific reports
This trial aimed to explore the effect of supervised breathing exercises (BEs) on depression, sexual function, and exercise capacity in postmenopausal women. Sixty-four depressed postmenopausal women with associated sexual dysfunction were…
View details →Rezaeinejad, Sepidarkish, Moini et al. · 2026 · Pregnancy hypertension
While cigarette smoking has been paradoxically associated with a reduced risk of preeclampsia, the effect of waterpipe (WP) smoking, an increasingly prevalent form of tobacco use remains poorly understood. This study aimed to investigate…
View details →Ehne, Kastensson, Wedin et al. · 2026 · Journal of bone oncology
The use of postoperative radiotherapy (PORT) as an adjunct to orthopaedic surgery of the long bones is widely recommended. Evidence of the benefits is however sparse. The primary research question of this study was whether PORT reduces the…
View details →Karunayawong, Sukmanee, Butchon et al. · 2026 · BMJ open
Since 1985, the international healthcare community has recommended the ideal rate of caesarean section (CS) to be 10%-15% at the national level. The literature has reported that overused CS without necessary medical indications can be…
View details →Rodrigues, Macedo, de Paulo et al. · 2026 · Oral surgery, oral medicine, oral pathology and oral radiology
To evaluate the effects of sticky bone a biomaterial composed of Solid-PRF (S-PRF), a variant of platelet-rich fibrin (PRF), and deproteinized bovine bone-on bone formation after tooth extraction performed prior to radiotherapy, with…
View details →Olivieri, Amatori, Battocchio et al. · 2026 · Nanomaterials (Basel, Switzerland)
Gold nanorods (AuNRs) were synthesized and optimized with the aim of obtaining strongly hydrophilic nanomaterials, suitable as a drug delivery system (DDS) for copper-based drugs. After careful purification, AuNRs were characterized by…
View details →Expósito-Díaz, Medina, Moral · 2026 · Environmental microbiology reports
Olive anthracnose, the most critical disease affecting fruit and oil quality, is caused by Colletotrichum species, with C. godetiae dominant in Italian and Spanish orchards. Climate change could exacerbate its impact, particularly through…
View details →Pujol, Minguell, Pijoan et al. · 2025 · Journal of orthopaedics
To determine if maintaining the preoperative CPAK class influences on clinical outcomes when performing a functional aligned robotic assisted TKA (RATKA). This prospective cohort study compared patients who maintained their preoperative…
View details →Zhou, Lu, Wang et al. · 2026 · PeerJ
The clinical impact of sperm chromatin condensation defects (SCCD) on in vitro fertilization (IVF) outcomes remains controversial. This study aimed to clarify the effects of SCCD on embryonic development, pregnancy, and neonatal outcomes…
View details →Ergün, Bayraktar Nahir · 2026 · Odontology
Pit and fissure sealants (PFS) are effective in preventing occlusal caries. This randomized split-mouth clinical study aimed to compare the 18-month clinical performance of the bioactive resin-based PFS (BioCoat™) with a…
View details →Fan, Luo, Zheng et al. · 2026 · Physiology & behavior
The circadian clock genes Per1 and Per2 play a crucial role in regulating circadian rhythms. However, the consequences of their deficiency on motor function and age-related behavioral changes remain poorly understood. This study aimed to…
View details →Fojcik, Górski, Szulik et al. · 2025 · Frontiers in psychiatry
The aim of this study was to determine the risk of suicidal behavior in patients who were involuntarily hospitalized in forensic psychiatry departments, taking into account demographic variables such as age, level of education and length…
View details →Schmidt, Brühl, Möllers et al. · 2026 · Haemophilia : the official journal of the World Federation of Hemophilia
Sufficient sleep is essential for maintaining both physical and mental health, yet data on sleep health among persons with haemophilia (PwH) remain limited. This study aimed to assess sleep in PwH compared to healthy controls (Con) and…
View details →Bregen, de Buhr, Strutzberg-Minder et al. · 2026 · Veterinary sciences
The reasons for disease outbreaks caused by Actinobacillus pleuropneumoniae (APP) in vaccinated pigs are often unknown and remain a challenge for farmers and veterinarians. One hypothesis for APP vaccine failure is the timing of APP…
View details →Wang, Ouyang, Chen et al. · 2026 · Scientific reports
This study aims to explore the impact of wearing Defocus Incorporated Multiple Segments (DIMS) spectacle lenses on astigmatism in myopic children. This study included 396 myopic children and divided the participants into two groups:the…
View details →Ma, Qiu, Liu · 2025 · Frontiers in nutrition
Acute-on-chronic liver failure (ACLF) patients face high risks of nutritional risk and clinical complications, but whether adjuvant nutritional support reduces adverse complications remains unclear. This study included 6,097 hospitalized…
View details →Kır · 2026 · PeerJ
This research compares the yield and quality of barley ( Hordeum vulgare ), rye ( Secale cereale ), triticale (× Triticosecale Wittmack ), and wheat ( Triticum aestivum ) grown in dry conditions in winter and widely used in producing…
View details →Cheng, Wang, Liu et al. · 2026 · PloS one
There has been ongoing debate over whether people are intuitively honest or intuitively dishonest. A recent social harm account was proposed to address this debate: dishonesty is intuitive when cheating inflicts harm on an abstract other…
View details →Li, Wang, Shen et al. · 2026 · International journal of cancer
Gastric carcinoma (GC) with neuroendocrine differentiation (GCNED) is a rare and particular pathological subtype. The survival outcomes and prognosis of patients with GCNED are currently unclear. We conducted a retrospective cohort study…
View details →Pires Marafon, Reuter, Isola et al. · 2026 · Transfusion clinique et biologique : journal de la Societe francaise de transfusion sanguine
The legal shelf life of platelet concentrates (PCs) has been extended from 5 to 7 days in France since 2018. Our study aimed to determine whether this increase in PC storage time has produced a significant impact on…
View details →Akkaya, Kosar · 2026 · Journal of endodontics
To investigate the influence of different types of intracanal medicaments and root canal sealers on root dentine fracture resistance at different time intervals. A total of 180 single-rooted human mandibular premolars were used. Samples…
View details →Liu, Zhang, Yuan et al. · 2026 · Chemical science
Hexafluoropropylene oxide-dimer acid (HFPO-DA) is widely used in food packaging bags, surfactants, lubricants, etc. As a new substitute for the persistent organic pollutant perfluorooctanoic acid (PFOA), it has been proven to have…
View details →Aman, Gencer, Sağlam et al. · 2026 · Medicina (Kaunas, Lithuania)
Background and Objectives : This study was conducted to investigate the effects of fragment size on clinical and radiological outcomes and the development of complications during the surgical treatment of pediatric lateral condyle…
View details →Chausheva, Shefket, Bocheva et al. · 2026 · Medicina (Kaunas, Lithuania)
Background and Objectives : Individuals with long-standing type 1 diabetes (T1D) remain at elevated cardiovascular risk (CVR). Adiponectin (ADNC) and leptin (LEP) are adipokines involved in metabolic and vascular homeostasis, yet their…
View details →Akler, Gelman, Radomislensky et al. · 2026 · The Israel Medical Association journal : IMAJ
Age is a well-established prognostic factor in civilian trauma, where adverse outcomes increase with ages. Whether this pattern holds true in military trauma, where populations, injury mechanisms, and systems of care differ fundamentally,…
View details →Albayrak · 2026 · Revista da Associacao Medica Brasileira (1992)
Systemic inflammation is closely associated with acute exacerbations of chronic obstructive pulmonary disease and may reflect the risk of future exacerbations. Blood-based inflammatory biomarkers represent simple and practical tools for…
View details →Yoonhee Shin, Bohyun Park, Nam-eun Kim et al. · 2022 · Journal of Preventive Medicine and Public Health
Objectives The aim of this study was to evaluate the subjective level of health-related quality of life of Korean healthcare workers using various quality-of-life instruments. Methods This study included 992 participants, who were doctors and nurses. A survey was conducted between November 28 and December 4, 2019. Data from 954 participants divided into 3 groups (physicians, residents, and nurses) were analyzed. Four measurement tools (29 questions) were used in the survey to evaluate subjective health status and well-being. Results In the Mayo Well-being Index, burnout during work (88.5%) and
View details →Wade J. Chalker, Anthony J. Shield, David A. Opar et al. · 2018 · PeerJ
Background Hamstring strain injuries (HSI) are one of the most prevalent and serious injuries affecting athletes, particularly those in team ball sports or track and field. Recent evidence demonstrates that eccentric knee flexor weakness and between limb asymmetries are possible risk factors for HSIs. While eccentric hamstring resistance training, e.g. the Nordic hamstring exercise (NHE) significantly increases eccentric hamstring strength and reduces HSI risk, little research has examined whether between limb asymmetries can be reduced with training. As augmented feedback (AF) can produce sig
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