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Failure-mode index

Search what already failed

A searchable index of real negative results, null findings, and replication failures from the published literature — so you can learn what didn't work before repeating it.

WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record (title, authors, DOI) compiled from open scholarly databases, with the abstract shown in full only where the paper is openly licensed (e.g. Creative Commons); otherwise a short excerpt is shown for reference under fair use. WASTE classifies each work by failure type; classifications are automated and approximate.

19840 results in Negative / Null Result Report · page 267 of 662

Negative / Null Result ReportMedicine

The impact of a second embryo biopsy for preimplantation genetic testing for monogenic diseases (PGT-M) with inconclusive results on pregnancy potential: results from a matched case-control study.

Guarneri C, Reschini M, Pinna M et al. · 2024 · Journal of assisted reproduction and genetics

Purpose To evaluate whether a second biopsy, following a first diagnostic failure on blastocysts tested for preimplantation genetic testing for monogenic diseases (PGT-M), allows to obtain genetic diagnosis and to what extent this…

View details →DOI: 10.1007/s10815-024-03078-w
Negative / Null Result Report

Diagnostic impact of secondary findings from whole genome or whole exome sequencing in patients diagnosed with genetic eye disorders

Mehta SP, Antonio Aguirre B, See WYN et al. · 2025 · Preprint

Purpose Whole exome or genome sequencing (WES and WGS, respectively) can be valuable in identifying the molecular basis of inherited retinal disorders (IRD), particularly when panel-based testing yields negative or inconclusive results.…

View details →DOI: 10.1101/2025.03.03.25322102
Negative / Null Result ReportOpen accessMedicine

Hormonal and reproductive factors and risk of nasopharyngeal carcinoma in Chinese women: a case-control study.

Su XY, Schroder A, Tse LA et al. · 2025 · BMC research notes

Background Sex hormones may play a role in the development of nasopharyngeal carcinoma (NPC), but the evidence is limited. Methods This case-control study collected information on sex hormonal and reproductive factors of 99 female incident…

View details →DOI: 10.1186/s13104-025-07471-1
Negative / Null Result ReportOpen accessMedicine

Pre-Analytical and Analytical Challenges in Whole-Exome Sequencing of Formalin-Fixed Paraffin-Embedded Breast and Prostate Cancer Tissue: A Real-World Multicenter Study.

Rosa ML, Bordignon C, Schuch JB et al. · 2026 · Diagnostics (Basel, Switzerland)

Background/Objectives : Formalin-fixed paraffin-embedded tissue is widely used in pathology and molecular diagnostics, yet its variable quality can critically influence the accuracy of sequencing-based analyses. This study investigated…

View details →DOI: 10.3390/diagnostics16111595
Negative / Null Result ReportOpen accessMedicine

Comprehensive assessment of invalid and indeterminate results in Truenat MTB-RIF testing across sites under the national TB elimination program of India.

Gopalaswamy R, Kumar N, Vashistha H et al. · 2023 · Frontiers in public health

Introduction Truenat MTB-RIF assay (Truenat), a nucleic acid amplification test (NAAT), is a real-time polymerase chain reaction (RT-PCR) chip-based assay that can detect Mycobacterium tuberculosis ( Mtb ) and rifampicin (RIF) drug…

View details →DOI: 10.3389/fpubh.2023.1255756
Negative / Null Result ReportMedicine

Foodborne pathogens in the plastisphere: Can microplastics in the food chain threaten microbial food safety?

Tavelli R, Callens M, Grootaert C et al. · 2024 · Trends in Food Science & Technology.

Microplastics (MPs) contaminate the global marine and terrestrial ecosystems. This environmental contamination can enter the food chain, with MPs found in drinking water, fishery products and other food categories. Consequently, ingestion…

View details →DOI: 10.1016/j.tifs.2022.08.021
Negative / Null Result Report

Discovery of a novel bandavirus using metagenomic sequencing in a retrospective analysis of an unresolved 2020 mortality event involving black vultures in the northeastern United States

Mwakibete L, Hoarau AOG, Ahyong V et al. · 2024 · Preprint

Investigations of wildlife diseases and mortality events can sometimes lead to inconclusive results due to limitations in diagnostics combined with an ever-increasing number of emerging viruses. The use of tools such as unbiased…

View details →DOI: 10.1101/2024.12.21.629921
Negative / Null Result ReportMedicine

Magnetic fields from indoor transformer stations and risk of cancer in adults: a cohort study.

Juutilainen J, Khan MW, Naarala J et al. · 2024 · Occupational and environmental medicine

Objectives Studies assessing the association of adult cancers with extremely low frequency (ELF) magnetic fields (MF) have provided inconclusive results, probably affected by limitations such as low exposure levels, confounding and various…

View details →DOI: 10.1136/oemed-2024-109466
Negative / Null Result ReportOpen accessMedicine

The Role of Inflammasomes in LPS and Gram-Negative Bacterial Sepsis.

Hernández-Cuellar E, Tsuchiya K, Medina-Contreras O et al. · 2025 · Journal of clinical medicine

Background/Objectives : Sepsis is a life-threatening condition characterized by an uncontrolled immune response due to systemic infections. It is responsible for millions of deaths worldwide. Although inflammasomes play an important role…

View details →DOI: 10.3390/jcm14197102
Negative / Null Result ReportMedicine

Ivermectin performance against equine strongylids: Efficacy, egg reappearance periods, and fecal egg counting method comparison.

Nielsen MK, Bartholdy ID, Kristensen KS et al. · 2025 · Veterinary parasitology

Equine strongylids are ubiquitous and can cause severe health issues. Anthelmintic resistance is widely common in cyathostomin parasites, and recent studies have documented increasing incidence of resistance to the macrocyclic lactone drug…

View details →DOI: 10.1016/j.vetpar.2025.110465
Negative / Null Result ReportMedicine

Clinical utility of comprehensive gene panel testing for common and rare causes of skeletal dysplasia and other skeletal disorders: Results from the largest cohort to date.

MacCarrick G, Aradhya S, Bailey M et al. · 2024 · American journal of medical genetics. Part A

Molecular genetics enables more precise diagnoses of skeletal dysplasia and other skeletal disorders (SDs). We investigated the clinical utility of multigene panel testing for 5011 unrelated individuals with SD in the United States…

View details →DOI: 10.1002/ajmg.a.63646
Negative / Null Result ReportOpen accessMedicine

Upfront Exercise Hemodynamic Phenotyping of Patients with Pulmonary Hypertension and Left Heart Disease Risk Factors: A Prospective Experience.

Karvasarski E, Park J, Savaris S et al. · 2026 · CJC open

Background Resting hemodynamic assessment of suspected pulmonary hypertension (PH) in older adults with cardiovascular risk factors may not effectively discriminate pre-capillary from post-capillary disease. Exercise right-heart…

View details →DOI: 10.1016/j.cjco.2026.02.005
Negative / Null Result ReportMedicine

Pathophysiological mechanisms of gut dysbiosis and food allergy and an investigation of probiotics as an intervention for atopic disease.

Crabtree D, Seidler K, Barrow M · 2025 · Clinical nutrition ESPEN

Background and aims Epidemiological studies have associated reduced bacterial diversity and abundance and food allergy. This mechanistic review investigated the link between gut dysbiosis and food allergy with a focus on the role of…

View details →DOI: 10.1016/j.clnesp.2024.11.019
Negative / Null Result ReportMedicine

Should embryo rebiopsy be considered a regular strategy to increase the number of embryos available for transfer?

Nohales M, Coello A, Martin A et al. · 2023 · Journal of assisted reproduction and genetics

Purpose To investigate whether embryo rebiopsy increases the yield of in vitro fertilization (IVF) cycles. Methods Retrospective study including 18,028 blastocysts submitted for trophectoderm biopsy and preimplantation genetic testing for…

View details →DOI: 10.1007/s10815-023-02875-z
Negative / Null Result ReportOpen accessMedicine

Analysis of Pregnancy Outcomes in Women with Polycystic Ovary Syndrome (PCOS): A Retrospective Study.

Salgotra M, Bharti N, Sinha V et al. · 2024 · Journal of pharmacy & bioallied sciences

Introduction Although PCOS affects reproductive health, its consequences on the outcome of pregnancies are still up for discussion. Comparing the pregnancy outcomes of women with PCOS to a control group was the goal of this retrospective…

View details →DOI: 10.4103/jpbs.jpbs_233_24
Negative / Null Result ReportMedicine

GWAS shows the genetics behind cell-free DNA and highlights the importance of p.Arg206Cys in DNASE1L3 for non-invasive testing.

Linthorst J, Nivard M, Sistermans EA · 2024 · Cell reports

The properties of cell-free DNA (cfDNA) are intensely studied for their potential as non-invasive biomarkers. We explored the effect of common genetic variants on the concentration and fragmentation properties of cfDNA using a genome-wide…

View details →DOI: 10.1016/j.celrep.2024.114799
Negative / Null Result ReportMedicine

Dietary Iron Intake and Risk of Gastric Cancer.

Pham YT, Nguyen BN, Nguyen TG et al. · 2026 · Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology

Background Iron is one of the essential elements for human life. Prior studies provided inconclusive results about the association between dietary iron intake and gastric cancer risk. We determined the association between dietary iron…

View details →DOI: 10.1158/1055-9965.epi-25-1167
Negative / Null Result ReportMedicine

Single-exon fetal RHD genotyping: a 31-month follow up in the obstetric population of Western Sweden.

Pardi C, Hellberg Å, Isakson P · 2024 · Blood transfusion = Trasfusione del sangue

Background The Rh blood group system is highly complex, polymorphic, and immunogenic. The presence of RHD gene variants in RhD negative pregnant women is a challenge in fetal RHD genotyping as it may influence the antenatal management of…

View details →DOI: 10.2450/bloodtransfus.741
Negative / Null Result ReportOpen accessMedicine

Rare Occurrence of Myxoma in Heart Transplant Recipient: A Case Report.

Gutowska A, Bohdan M, Radtke-Łysek A et al. · 2026 · The American journal of case reports

BACKGROUND Cardiac myxomas are the most common primary cardiac tumors in the general population but are exceedingly rare in orthotopic heart transplant recipients. Fewer than 5 cases have been reported. Their pathogenesis in the setting of…

View details →DOI: 10.12659/ajcr.949982
Negative / Null Result ReportMedicine

Scoping review of the music-based movement therapy Ronnie Gardiner Method.

Harjunen L, Östman K, Pohl P · 2025 · Disability and rehabilitation

Purpose Ronnie Gardiner Method (RGM) is a music-based movement therapy that has long been used within rehabilitation. There is a need to (1) identify the scope of the use of RGM, (2) explore potential benefits, (3) examine qualitative…

View details →DOI: 10.1080/09638288.2024.2392037
Negative / Null Result ReportOpen accessMedicine

T174M-M235T <i>AGT</i> Gene Haplotypes in Women with Pre-Eclampsia from Northwest Mexico: A Pilot Case-Control Study.

Portillo-Gallo JH, Sánchez-González JM, Saldaña-Cruz AM et al. · 2026 · Current issues in molecular biology

Pre-eclampsia is a Hypertensive Disorder of Pregnancy (HDP) characterized by hypertension and proteinuria, affecting 2-8% of pregnancies worldwide and constituting a major public health concern. Genes of the renin-angiotensin system have…

View details →DOI: 10.3390/cimb48020168
Negative / Null Result ReportOpen accessMedicine

Infectious potential and circulation of SARS-CoV-2 in wild rats.

Beissat K, Lattard V, Picard-Meyer E et al. · 2025 · PloS one

Since the beginning of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic, a wide range of animal species (pets, mink…) have been naturally infected with this betacoronavirus. The emergence of new variants has…

View details →DOI: 10.1371/journal.pone.0316882
Negative / Null Result ReportOpen accessMedicine

Hierarchical Classification of Factors Associated With Noninvasive Prenatal Testing Failures and Its Impact on Pregnancy Outcomes.

Xie J, Jiang Y, Zhou Y et al. · 2024 · Maternal-fetal medicine (Wolters Kluwer Health, Inc.)

Objective To conduct a hierarchical classification analysis of the nonreportable results of noninvasive prenatal testing in an attempt to reduce failure rates and provide pregnant women with accurate information to alleviate their anxiety.…

View details →DOI: 10.1097/fm9.0000000000000248