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Browse the failure-mode index

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.

Negative / Null Result ReportMedicine

Association Between Venlafaxine Exposure And Treatment Outcomes In Older Adults With Depression: Association entre l'exposition à la venlafaxine et les résultats du traitement chez les personnes âgées atteintes de dépression.

Men X, Taylor ZL, Marshe VS et al. · 2026 · Canadian journal of psychiatry. Revue canadienne de psychiatrie

BackgroundVenlafaxine is commonly prescribed for older adults with depression, yet the relationship between venlafaxine-related exposure and treatment outcomes remains unclear. We aimed to assess the association of exposure to venlafaxine,…

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Negative / Null Result ReportMedicine

Patient reported outcomes after cheilectomy versus cheilectomy and Moberg osteotomy.

Littmann J, Steiner N, Cabrejo-Jones K et al. · 2026 · The Journal of foot and ankle surgery : official publication of the American College of Foot and Ankle Surgeons

Background A Moberg osteotomy is a dorsal closing wedge osteotomy of the base of the first proximal phalanx that is thought to augment the effect of cheilectomy by increasing dorsiflexion and ultimately improve patient outcomes in Hallux…

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Negative / Null Result ReportOpen accessMedicine

Fe(II) with Tris(1-pyrazolyl)methane Complex Increases Thermal Stability In Vitro and Activity In Vivo of the Mutant 447R Form of Mouse Tryptophan Hydroxylase 2.

Terentieva EI, Komleva PD, Antonova SM et al. · 2026 · International journal of molecular sciences

Pharmacological chaperones (PCs)-small molecules that normalize the 3D structure of mutant protein molecules-are promising substances for pharmacological treatment of grave hereditary pathologies. In this study, possible chaperone-like…

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Negative / Null Result ReportMedicine

Comparison of the proteolysis and occurrence of a range of β-casomorphin peptides in commercial U.S. Cheddar cheeses manufactured from A1/A2 and A2/A2 β-casein milks.

Daniloski D, Ibáñez RA, McCarthy NA et al. · 2026 · Journal of dairy science

Bovine β-casein (β-CN) is a major milk protein that exists as multiple genetic variants, distinguished by differences in their amino acid sequences. Among these, the A1 and A2 variants are the most extensively studied. They differ at…

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Negative / Null Result ReportMedicine

PARK7 (DJ-1) indicates favorable prognosis and correlates with estrogen-receptor status and N<sup>ε</sup>-carboxymethyl-lysine (CML) accumulation in breast cancer.

Nass N, Sprung S, Ignatov A et al. · 2026 · Cancer treatment and research communications

In cancer, aerobic glycolysis predominantly used to provide energy. This high glycolytic flow results in the formation of reactive aldehydes such as glyoxal and methylglyoxal forming advanced glycation end products (AGEs) by reacting with…

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Negative / Null Result ReportMedicine

Comparative reliability of internal and vendor-derived computed tomography angiography (CTA) measurements in pretranscatheter aortic valve replacement (TAVR) assessment.

Claus L, Zhang X, Ocasio L et al. · 2026 · Clinical radiology

Aim Computed tomography angiography (CTA) is essential for preprocedural assessment in transcatheter aortic valve replacement (TAVR), particularly as TAVR becomes the preferred treatment for high-risk patients with severe aortic stenosis.…

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Negative / Null Result ReportMedicine

Introduction of central fetal monitoring and impact on neonatal outcome - a retrospective observational cohort study.

Söröd M, Gyllencreutz E · 2026 · The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians

Introduction Cardiotocography (CTG) is used for fetal surveillance to prevent asphyxia related neonatal outcomes during pregnancy and delivery. In Sweden, all delivery wards have transitioned from CTG registered and printed on paper inside…

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Negative / Null Result ReportMedicine

Dissecting the Impact of α-MSH-MC1R-cAMP Signaling on UVA-Induced Stress in Fibroblasts - Implications for Regulation of Cutaneous Photoaging.

Böhm M, Stegemann A, Wolnicka-Głubisz A et al. · 2026 · Aging and disease

Alpha-melanocyte-stimulating hormone (α-MSH) is a key endocrine mediator of photoprotection in the ultraviolet (UV)B-induced skin response. Its effects are mediated by the melanocortin-1 (MC1R) receptor and include increased eumelanin…

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Negative / Null Result ReportMedicine

Relationship Between Mean Faecal Gastrointestinal Nematode Egg Excretion in Horses and Its Variability: Implications for Control.

Cabaret J, Guerrero Molina C, Martínez-Ortiz-de Montellano C et al. · 2026 · Pathogens (Basel, Switzerland)

Faecal egg counts (FECs) are used to assess the intensity of gastrointestinal nematode (GIN) infections in herbivores. FEC distribution is aggregated, meaning that approximately 20% of animals harbour 80% of infections. In times of…

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Negative / Null Result ReportMedicine

High Programmed Death-Ligand 1 Expression is Associated With a Shorter Progression Free Survival in ALK-Rearranged Lung Cancer Patients Treated With First Line Tyrosine Kinase Inhibitors.

Nie Y, Staley A, Hinz TK et al. · 2026 · Clinical lung cancer

Background Although ALK-positive non-small cell lung cancer (NSCLC) derives limited benefit from immune checkpoint inhibitors, PD-L1 expression is frequently elevated at diagnosis. The clinical relevance of PD-L1 expression for the…

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Negative / Null Result ReportMedicine

Acute effects of ketone monoester ingestion on monocyte phenotype and cytokine secretion in healthy humans.

Marcotte-Chénard A, Sandilands RE, Teixeira AA et al. · 2026 · American journal of physiology. Cell physiology

Beta-hydroxybutyrate (BHB) exerts anti-inflammatory effects in cell and animal models, but translational work in humans remains limited. We investigated how exogenous ketone monoester (KME) ingestion in vivo and BHB treatment of human…

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Negative / Null Result ReportMedicine

The neuropsychophysiological correlates of compassion: A transcranial direct current stimulation (tDCS) study.

Vieira Y, Sobral M, Mateus V et al. · 2026 · International journal of psychophysiology : official journal of the International Organization of Psychophysiology

Transcranial direct current stimulation (tDCS) has emerged as a promising tool to investigate and modulate emotional and social processes, including compassion. By targeting cortical regions implicated in empathy and prosocial behaviour…

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Negative / Null Result ReportMedicine

Control of breathing during hibernation in golden-mantled ground squirrels.

Harris MB, Milsom WK · 2025 · Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology

During hibernation, golden-mantled ground squirrels (Spermophilus lateralis) breathe in distinct multi-breath episodes separated by prolonged periods of apnea. We hypothesized that vagal afferent feedback from pulmonary stretch receptors,…

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Negative / Null Result ReportMedicine

Impact of orally and vaginally administered estradiol on live birth and neonatal outcomes in frozen-thawed embryo transfer cycles: A retrospective cohort study.

Liu Y, Sun J, Hu Y et al. · 2026 · Clinical and experimental reproductive medicine

Objective Previous studies have reported a higher rate of small for gestational age (SGA) newborns from fresh embryo transfers compared with frozen-thawed embryo transfers (FET), potentially due to the supraphysiologic serum estradiol…

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Negative / Null Result ReportMedicine

Advanced glycation end-products accumulate preferentially in type I muscle fibers of aging adults but are unchanged by training and polyphenol supplementation.

Flensted-Jensen M, Kleis-Olsen AS, Weinreich CM et al. · 2026 · Journal of applied physiology (Bethesda, Md. : 1985)

Advanced glycation end-products (AGEs) accumulate with age and may contribute to skeletal muscle decline, yet their distribution within muscle compartments is unknown. Resistance training (RT) and high-intensity interval training (HIIT)…

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Negative / Null Result ReportMedicine

Lipocalin-2 Is Induced by Uromodulin Aggregates without Affecting Kidney Disease Progression in Autosomal Dominant Tubulointerstitial Kidney Disease- UMOD.

Lake J, Mariniello M, Schiano G et al. · 2026 · Journal of the American Society of Nephrology : JASN

Key points Lipocalin-2 upregulation paralleled intracellular uromodulin aggregates in mouse and cellular models of autosomal dominant tubulointerstitial kidney disease because of pathogenic uromodulin. The induction of lipocalin-2 was…

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Negative / Null Result ReportMedicine

Development and Evaluation of a Sham Diet Intended as a Placebo-Control Diet for Food-Based Interventional Trials in Ulcerative Colitis.

Day AS, Ballard TM, Benetti M et al. · 2026 · Journal of the Academy of Nutrition and Dietetics

Background The "gold standard" for successful blinding in controlled food-based dietary interventional trials includes a sham diet. Objective This study aimed to develop and evaluate a sham diet intended for use as a comparator in…

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