e-ISSN: Pending

Browse the failure-mode index

12,246 real negative results, null findings, and replication failures in Medicine. 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

GABA<sub>B</sub> receptor-mediated modulation of sensory neuron excitability: Roles of Ca<sub>V</sub>2.2, G-protein-coupled inwardly rectifying potassium (GIRK) channels, and hyperpolarisation-activated cyclic nucleotide-gated (HCN) channels in human and mouse nociception.

Brizuela M, Bony AR, Garcia-Caraballo S et al. · 2026 · Experimental physiology

Chronic visceral pain is a key symptom of irritable bowel syndrome. Modulation of voltage-gated calcium and potassium channels by G protein-coupled receptors plays a key role in dampening nociceptive transmission. Both baclofen and the…

View details →
Negative / Null Result ReportMedicine

Subcutaneous zilucoplan: Evaluation of reproductive toxicology.

Lemper M, Luetjens CM, Fuchs A et al. · 2025 · Reproductive toxicology (Elmsford, N.Y.)

To further understand the safety profile of zilucoplan, reproductive toxicology studies in non-human primates (NHPs) were performed, including a male fertility study and a combined embryo-foetal development (EFD) and enhanced pre- and…

View details →
Negative / Null Result ReportOpen accessMedicine

Connexin-43-Mediated Gap Junction Coupling Between Adipocytes Regulates Norepinephrine-Induced Ca<sup>2+</sup> Responses in Perivascular Adipose Tissue.

Kim AR, Jamka J, Jackson WF et al. · 2026 · Cells

Anticontractile factors secreted by perivascular adipose tissue (PVAT) play an important role in regulating vascular tone. This process is driven by the neurotransmitter norepinephrine (NE), but recent data show that adrenergic innervation…

View details →
Negative / Null Result ReportMedicine

Alpha-secretase inhibition impairs Group I metabotropic glutamate receptor-mediated protein synthesis, long-term potentiation and long-term depression.

Mockett BG, Davies JWT, Mills ZB et al. · 2024 · Philosophical transactions of the Royal Society of London. Series B, Biological sciences

Group I metabotropic glutamate receptors (Gp1-mGluRs) exert a host of effects on cellular functions, including enhancement of protein synthesis and the associated facilitation of long-term potentiation (LTP) and induction of long-term…

View details →
Negative / Null Result ReportOpen accessMedicine

Pin1 promotes human Ca V 2.1 channel polyubiquitination by RNF138: pathophysiological implication for episodic ataxia type 2.

Fu SJ, Cheng KM, Hsiao CT et al. · 2024 · Cell communication and signaling : CCS

Loss-of-function mutations in the human gene encoding the neuron-specific Ca 2+ channel Ca V 2.1 are linked to the neurological disease episodic ataxia type 2 (EA2), as well as neurodevelopmental disorders such as developmental delay and…

View details →
Negative / Null Result ReportOpen accessMedicine

Viniferin-Rich Phytocomplex from <i>Vitis vinifera</i> L. Plant Cell Culture Mitigates Neuroinflammation in BV2 Microglia Cells.

Videtta G, Sasia C, Quadrino S et al. · 2026 · Molecules (Basel, Switzerland)

Activation of microglia and resulting neuroinflammation are central processes that significantly contribute to neurodegenerative disease progression. Treatments capable of attenuating neuroinflammation are therefore an urgent medical need.…

View details →
Negative / Null Result ReportOpen accessMedicine

Pharmacokinetic Evaluation of a Cinnamon Product on CYP2A6 Substrate Drugs: Application of a Novel Tool Involving the Nicotine Metabolite Ratio.

Nguyen AP, Hadi DL, Todd DA et al. · 2026 · Clinical pharmacology and therapeutics

Cinnamon (Cinnamomum spp.) is used as a culinary spice and dietary supplement. A major constituent, cinnamaldehyde, was previously shown to inactivate cytochrome P450 (CYP) 2A6 in vitro. A mechanistic static model predicted an ~5-fold…

View details →
Negative / Null Result ReportOpen accessMedicine

The impact of CYP2D6 on donepezil concentration and its lack of effect on the treatment response and adverse effect in Korean patients with Alzheimer's disease.

Kim TE, Bae JW, Hong S et al. · 2025 · The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology

Donepezil, an acetylcholinesterase inhibitor, is widely used for managing the symptoms of Alzheimer's disease (AD), yet its clinical response varies widely among individuals. This study aims to investigate the influence of CYP2D6 genetic…

View details →
Negative / Null Result ReportOpen accessMedicine

MG53's non-physiologic interaction with insulin receptor: lack of effect on insulin-stimulated Akt phosphorylation in muscle, heart and liver tissues.

Lee KE, Nishi M, Kim J et al. · 2024 · Frontiers in endocrinology

Rationale MG53's known function in facilitating tissue repair and anti-inflammation has broad applications to regenerative medicine. There is controversy regarding MG53's role in the development of type 2 diabetes mellitus. Objective This…

View details →
Negative / Null Result ReportOpen accessMedicine

Autoactivation of the HeLa 9903 test system during a full moon.

Krakowian D, Lach M, Żemła P et al. · 2025 · Cytotechnology

The HeLa 9903 cell line is used in the in vitro endocrine disruption assay (OECD 455). After treatment with an estrogen receptor agonist, the luminescence of these cells increases. However, some autoactivation of this test system may…

View details →
Negative / Null Result ReportMedicine

Liquid feeding does not suppress drinking motivation in heavy pigs

Nannoni E, Martelli G, Militerno G et al. · 2024 · Animal Feed Science and Technology.

The experiment aimed to obtain information on the water requirements, drinking behavior and drinking motivation of liquid-fed pigs and was conducted during the hot season. Eighty castrated male pigs (initial body weight: 36 kg) fed a…

View details →
Negative / Null Result ReportMedicine

Complementary yet Dissociable Influences of Medial and Lateral Orbitofrontal Cortex over Cue-Guided Decisions Involving Reward Magnitude and Uncertainty.

Schumacher JD, van Holstein M, Zhou P et al. · 2025 · The Journal of neuroscience : the official journal of the Society for Neuroscience

Converging evidence suggests that orbitofrontal cortex (OFC) subregions subserve distinct roles in decision-making across a variety of tasks. Cost/benefit decisions can require an organism to choose between options based on information…

View details →
Negative / Null Result ReportOpen accessMedicine

Extracellular Vesicles from Poor-Outcome Intracerebral Hemorrhage Patients Reveal Limited Reparative Potential in a Preclinical Model.

Laso-García F, Díaz-Gamero N, Gallego-Ruiz R et al. · 2025 · International journal of molecular sciences

Extracellular vesicles (EVs) have emerged as potential therapeutic agents for neurological disorders. Their molecular cargo may reflect the clinical status of the donor and has been identified as a biomarker for the cellular damage and…

View details →
Negative / Null Result ReportOpen accessMedicine

Enhancing discharge decision-making through continuous monitoring in an acute admission ward: a randomized controlled trial.

Kant N, Garssen SH, Vernooij CA et al. · 2024 · Internal and emergency medicine

In Acute Admission Wards, vital signs are commonly measured only intermittently. This may result in failure to detect early signs of patient deterioration and impede timely identification of patient stability, ultimately leading to…

View details →
Negative / Null Result ReportOpen accessMedicine

Trazodone, dibenzoylmethane and tauroursodeoxycholic acid do not prevent motor dysfunction and neurodegeneration in Marinesco-Sjögren syndrome mice.

Lavigna G, Grasso A, Pasini C et al. · 2025 · PloS one

There is no cure for Marinesco-Sjögren syndrome (MSS), a genetic multisystem disease linked to loss-of-function mutations in the SIL1 gene, encoding a BiP co-chaperone. Previously, we showed that the PERK kinase inhibitor GSK2606414 delays…

View details →
Negative / Null Result ReportOpen accessMedicine

CD320 expression is increased in breast cancer stem cells but does not promote their expansion or alter key histone methylation marks.

Carney C, Jenkins L, Jewell C et al. · 2025 · microPublication biology

Several lines of evidence suggest a potential link between stemness and vitamin B12, which contributes to S-adenosylmethionine (SAM) generation and hence methylation-dependent epigenetic control. Here we found that the vitamin B12…

View details →