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Failure-mode index

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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.

19823 results in Negative / Null Result Report · page 218 of 661

Negative / Null Result ReportOpen accessNeurology. Diseases of the nervous system

Clinical profile and quality of life in myasthenia gravis using MGQOL15 R(Hindi): An Indian perspective

Ganeshgouda Majigoudra, Ashish K Duggal, Debashish Chowdhury et al. · 2023 · Annals of Indian Academy of Neurology

Background: Myasthenia Gravis (MG) is a chronic fluctuating illness, due to the dysfunction of neuromuscular junction which is autoimmune in nature. The disease severely affects the Quality Of Life (QOL). Objective: The primary objective of our study was to assess the QOL in patients with MG using Short Form 36 (SF 36) and MGQOL 15 R (Hindi translated).The secondary objective was to assess the correlation of age, sex, illness duration, clinical characteristics, severity, and treatment with the QOL in MG patients. Methodology: A cross sectional study of 55 MG patients was done to analyse and ev

View details →DOI: 10.4103/aian.aian_945_22
Negative / Null Result ReportOpen accessDiseases of the blood and blood-forming organs

PROGNOSTIC VALUE OF BRAIN AND ACUTE LEUKEMIA CYTOPLASMIC GENE EXPRESSION IN EGYPTIAN CHILDREN WITH ACUTE MYELOID LEUKEMIA

adel abd elhaleim hagag · 2015 · Mediterranean Journal of Hematology and Infectious Diseases

Abstract Background: Acute myeloid leukemia (AML) accounts for 25%-35% of the acute leukemia in children. BAALC (Brain and Acute Leukemia, Cytoplasmic gene) is a recently identified gene on chromosome 8q22.3 that has prognostic significance in AML. The aim of this work was to study the impact of BAALC gene expression on prognosis of AML in Egyptian children. Patients and methods: This study was conducted on 40 patients of newly diagnosed AML who were subjected to the following: Full history taking, clinical examination, laboratory investigations including: complete blood count, LDH, bone marro

View details →DOI: 10.4084/mjhid.2015.033
Negative / Null Result ReportOpen accessMedicine (General)

Increased risk of respiratory events during endobronchial ultrasound examination in patients with reduced forced expiratory volume: a prospective observational study

Achim Grünewaldt, Gernot Rohde · 2024 · Frontiers in Medicine

BackgroundThe incidence of adverse events during endobronchial ultrasound is low. Nevertheless, it is unclear, whether patients with impaired pulmonary function have an increased risk of respiratory events during the intervention.MethodsA monocentric prospective observational study was performed at the Department of Respiratory Medicine, University Hospital Frankfurt/Main, Germany. Adult patients undergoing an endobronchial ultrasound examination with propofol-sedation were included. Pre-interventional screening included pulmonary function testing, laboratory tests and electrocardiogram. The o

View details →DOI: 10.3389/fmed.2024.1409160
Negative / Null Result ReportOpen accessMicrobiology

Helminth fauna of Chelonia mydas (Linnaeus, 1758) in the south of Espírito Santo State in Brasil

Binoti E., Gomes M. C., De Calais Junior A. et al. · 2016 · Helminthologia

Due to an inadequate knowledge about threats to the sea turtle, we aimed to evaluate the helminth fauna of Chelonia mydas which had died on the southern coast of Espirito Santo, Brasil and described the associated tissue pathological lesions. Retrospective and prospective studies on turtle parasites were conducted and tissues samples were collected. 106 of 212 of sea turtles (50 %) were parasitized, and 47 of 106 of infected animals 43.0 % (47/106) were in poor health condition. Seven trematoda families covering 19 different helminths species were identified. Turtles were inhabited with one or

View details →DOI: 10.1515/helmin-2016-0012
Negative / Null Result ReportOpen accessInternal medicine

Novel variants in the PRDX6 Gene and the risk of Acute Lung Injury following major trauma

Localio A Russell, Bellamy Scarlett, Gallop Robert et al. · 2011 · BMC Medical Genetics

Abstract Background Peroxiredoxin 6 ( PRDX6 ) is involved in redox regulation of the cell and is thought to be protective against oxidant injury. Little is known about genetic variation within the PRDX6 gene and its association with acute lung injury (ALI). In this study we sequenced the PRDX6 gene to uncover common variants, and tested association with ALI following major trauma. Methods To examine the extent of variation in the PRDX6 gene, we performed direct sequencing of the 5' UTR, exons, introns and the 3' UTR in 25 African American cases and controls and 23 European American cases and c

View details →DOI: 10.1186/1471-2350-12-77
Negative / Null Result ReportOpen accessNeoplasms. Tumors. Oncology. Including cancer and carcinogens

Image-based consensus molecular subtyping in rectal cancer biopsies and response to neoadjuvant chemoradiotherapy

Maxime W. Lafarge, Enric Domingo, Korsuk Sirinukunwattana et al. · 2024 · npj Precision Oncology

Abstract The development of deep learning (DL) models to predict the consensus molecular subtypes (CMS) from histopathology images (imCMS) is a promising and cost-effective strategy to support patient stratification. Here, we investigate whether imCMS calls generated from whole slide histopathology images (WSIs) of rectal cancer (RC) pre-treatment biopsies are associated with pathological complete response (pCR) to neoadjuvant long course chemoradiotherapy (LCRT) with single agent fluoropyrimidine. DL models were trained to classify WSIs of colorectal cancers stained with hematoxylin and eosin

View details →DOI: 10.1038/s41698-024-00580-3
Negative / Null Result ReportOpen accessMedicine

The effect of gabapentin on muscle cramps during hemodialysis: A double-blind clinical trial

Seyed Seifollah Beladi Mousavi, Abbasali Zeraati, Sajad Moradi et al. · 2015 · Saudi Journal of Kidney Diseases and Transplantation

Hemodialysis‐associated muscle cramps (HAMC) are a common complication during hemodialysis (HD) sessions. A number of pharmacologic agents have been evaluated to prevent and or diminish HAMC; however, none of them has an established role. To the best of our knowledge, this is the first study to evaluate the possible effect of gabapentin on HAMC. In a double-blinded clinical trial, we compared the possible effect of gabapentin with a placebo in prevention and or diminishing episodes of HAMC in HD patients who had experienced frequent intradialytic muscle cramps. At first, placebo was given befo

View details →DOI: 10.4103/1319-2442.168588
Negative / Null Result ReportOpen accessMedicine

A novel stepwise integrative analysis pipeline reveals distinct microbiota-host interactions and link to symptoms in irritable bowel syndrome

Annikka Polster, Lena Öhman, Julien Tap et al. · 2021 · Scientific Reports

Abstract Although incompletely understood, microbiota-host interactions are assumed to be altered in irritable bowel syndrome (IBS). We, therefore, aimed to develop a novel analysis pipeline tailored for the integrative analysis of microbiota-host interactions and association to symptoms and prove its utility in a pilot cohort. A multilayer stepwise integrative analysis pipeline was developed to visualize complex variable associations. Application of the pipeline was demonstrated on a dataset of IBS patients and healthy controls (HC), using the R software package to analyze colonic host mRNA a

View details →DOI: 10.1038/s41598-021-84686-9
Negative / Null Result ReportOpen accessEnvironmental technology. Sanitary engineering

Associations between maternal weekly air pollutant exposures and low birth weight: a distributed lag non-linear model

Han Wu, Baofa Jiang, Ping Zhu et al. · 2018 · Environmental Research Letters

When discussing the association between birth weight and air pollution, previous studies mainly focus on the maternal trimester-specific exposures during pregnancy, whereas the possible associations between birth weight and weekly-specific exposures have been largely neglected. We conducted a nested 1:4 matched case-control study in Jinan, China to examine the weekly-specific associations during pregnancy between maternal fine particulate matter (aerodynamic diameter < 2.5 μm, PM _2.5 ), nitrogen dioxide (NO _2 ), and sulfur dioxide (SO _2 ) exposure and birth weight, which is under a represen

View details →DOI: 10.1088/1748-9326/aaa346
Negative / Null Result ReportOpen access

EFFECT OF THINNING ON VOLUMES OF BIOMASS AND BARK TANNINS CONTENT OF Mimosa caesalpiniifolia BENTH. TREES

L. L. D. Paiva, Tatiane Kelly Barbosa de Azevedo, A. Pimenta et al. · 2023 · Revista Árvore

ABSTRACT This research aimed to evaluate the effect of thinning on the wood volumes per hectare on the tannin content in the bark of Mimosa caesalpiniifolia. The planting was subdivided into two plots, one thinned at 12 and 55 months of…

View details →DOI: 10.1590/1806-908820230000028
Negative / Null Result ReportOpen accessPublic aspects of medicine

Non-specific physical symptoms in relation to actual and perceived proximity to mobile phone base stations and powerlines

Bolte John, Schipper Maarten, Kelfkens Gert et al. · 2011 · BMC Public Health

Abstract Background Evidence about a possible causal relationship between non-specific physical symptoms (NSPS) and exposure to electromagnetic fields (EMF) emitted by sources such as mobile phone base stations (BS) and powerlines is insufficient. So far little epidemiological research has been published on the contribution of psychological components to the occurrence of EMF-related NSPS. The prior objective of the current study is to explore the relative importance of actual and perceived proximity to base stations and psychological components as determinants of NSPS, adjusting for demograph

View details →DOI: 10.1186/1471-2458-11-421
Negative / Null Result ReportOpen accessTherapeutics. Pharmacology

The Association Between Proton Pump Inhibitors and COVID-19 is Confounded by Hyperglycemia in a Population-Based Study

Asher Shafrir, Asher Shafrir, Asher Shafrir et al. · 2022 · Frontiers in Pharmacology

Background and Aims: There is conflicting evidence regarding the association between proton pump inhibitors (PPI) and the risk of acquisition and severity of acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection.Aim: To evaluate the association between PPI exposure and infection and development of severe disease in patients infected with SARS-CoV2in a large population-based historical cohort.Methods: Data were extracted from a health maintenance organization database in Israel that insures over 1,200,000 individuals from across the country. All patients who underwent SARS-CoV-2 testi

View details →DOI: 10.3389/fphar.2022.791074
Negative / Null Result ReportOpen accessMedicine

Post hoc analysis of a randomised controlled trial: effect of vitamin D supplementation on circulating levels of desmosine in COPD

Rob Janssen, Jef Serré, Ianthe Piscaer et al. · 2020 · ERJ Open Research

Background Vitamin D supplementation lowers exacerbation frequency in severe vitamin D-deficient patients with COPD. Data regarding the effect of vitamin D on elastin degradation are lacking. Based on the vitamin's anti-inflammatory properties, we hypothesised that vitamin D supplementation reduces elastin degradation, particularly in vitamin D-deficient COPD patients. We assessed the effect of vitamin D status and supplementation on elastin degradation by measuring plasma desmosine, a biomarker of elastin degradation. Methods Desmosine was measured every 4 months in plasma of 142 vitamin D-na

View details →DOI: 10.1183/23120541.00128-2019
Negative / Null Result ReportOpen accessPediatrics

Early surfactant and non-invasive ventilation versus intubation and surfactant: a propensity score-matched national study

Karl Ove Hufthammer, Trond Markestad, Claus Klingenberg et al. · 2022 · BMJ Paediatrics Open

Objective To compare outcome after less invasive surfactant administration (LISA) and primary endotracheal intubation (non-LISA) in infants born before gestational age (GA) 28 weeks.Setting All neonatal intensive care units (NICUs) in Norway during 2012–2018.Methods Defined population-based data were prospectively entered into a national registry. We compared LISA infants with all non-LISA infants and with non-LISA infants who received surfactant following intubation. We used propensity score (PS) matching to identify non-LISA infants who were similar regarding potential confounders.Main outco

View details →DOI: 10.1136/bmjpo-2022-001527
Negative / Null Result ReportOpen accessDiseases of the endocrine glands. Clinical endocrinology

Assessment of cancer risk associated with 7‐nitroso‐3‐(trifluoromethyl)‐5,6,7,8‐tetrahydro[1,2,4] triazolo‐[4,3‐a]pyrazine‐contaminated sitagliptin use: A retrospective cohort study

Takehiro Sugiyama, Takashi Furuno, Yuichi Ichinose et al. · 2024 · Journal of Diabetes Investigation

ABSTRACT Aims/Introduction A recent US Food and Drug Administration report highlighted concerns over nitrosamine (7‐nitroso‐3‐(trifluoromethyl)‐5,6,7,8‐tetrahydro[1,2,4] triazolo‐[4,3‐a]pyrazine [NTTP]) impurities in sitagliptin, prompting investigations into its safety profile. The present study aimed to determine if the use of NTTP‐contaminated sitagliptin, in comparison with other dipeptidyl peptidase‐4 (DPP‐4) inhibitors, is associated with an increased cancer risk. Materials and Methods This retrospective cohort study secondarily used the National Database of Health Insurance Claims and S

View details →DOI: 10.1111/jdi.14281
Negative / Null Result ReportOpen accessMedicine

Mortality and other adverse outcomes in patients with type 2 diabetes mellitus admitted for COVID-19 in association with glucose-lowering drugs: a nationwide cohort study

Luis M. Pérez-Belmonte, José David Torres-Peña, María D. López-Carmona et al. · 2020 · BMC Medicine

Abstract Background Limited evidence exists on the role of glucose-lowering drugs in patients with COVID-19. Our main objective was to examine the association between in-hospital death and each routine at-home glucose-lowering drug both individually and in combination with metformin in patients with type 2 diabetes mellitus admitted for COVID-19. We also evaluated their association with the composite outcome of the need for ICU admission, invasive and non-invasive mechanical ventilation, or in-hospital death as well as on the development of in-hospital complications and a long-time hospital st

View details →DOI: 10.1186/s12916-020-01832-2
Negative / Null Result ReportOpen accessNutrition. Foods and food supply

Validation of GLIM criteria for hospital malnutrition diagnosis by comparison of three different anthropometric approaches to evaluate reduced muscle mass: a prospective cohort study

Mostafa Shahraki Jazinaki, Mostafa Shahraki Jazinaki, Mohammad Safarian et al. · 2024 · Frontiers in Nutrition

Background and aimThe Global Leadership Initiative on Malnutrition (GLIM) recently proposed a new malnutrition diagnostic tool known as the GLIM criteria. The GLIM criteria need confirmed validation before being widely used in each population or healthcare system. This study aimed to investigate the validation of the GLIM criteria for malnutrition diagnosis in hospitalized patients.MethodsThe content validity was assessed by calculating the content validity ratio (CVR) and content validity index (CVI). Subjective global assessment (SGA) is considered the reference tool to diagnose malnutrition

View details →DOI: 10.3389/fnut.2024.1438158
Negative / Null Result ReportOpen accessSports medicine

Debridement or Microfracture for Full-Thickness Cartilage Lesions in Anterior Cruciate Ligament Reconstruction: A 10-Year Cohort Study of 326 Patients in Norway and Sweden

Stian Kjennvold MD, Jan Harald Røtterud MD, PhD, Magnus Forssblad MD, PhD et al. · 2025 · Orthopaedic Journal of Sports Medicine

Background: It is well-established that patients undergoing anterior cruciate ligament reconstruction (ACLR) have a less favorable prognosis if a concomitant full-thickness cartilage lesion is present at the time of surgery. However, the long-term benefits of surgically addressing these cartilage lesions remain uncertain. Purpose: To evaluate whether the most used surgical treatments for cartilage lesions influenced patient-reported outcomes 10 years after ACLR. Study Design: Cohort study; Level of evidence, 2. Methods: This study was based on a cohort of all patients with primary unilateral A

View details →DOI: 10.1177/23259671251381340
Negative / Null Result ReportOpen accessPublic aspects of medicine

Adverse events following COVID-19 vaccination in Kwara State, North-central Nigeria

Louis Okeibunor Odeigah, Yahkub Babatunde Mutalub, Olalekan Ayodele Agede et al. · 2022 · PLOS Global Public Health

Safe and effective vaccination remains the mainstay of control of COVID-19 because there is still no universally recommended treatment. This strategy is however being threatened by vaccine hesitancy and resistance due to fear of adverse events and safety concerns. It is, therefore, necessary to study post-vaccination adverse events (AE) in various populations and geographical areas. The objective of this study was to analyze the adverse events following COVID-19 vaccination in five major immunization centers of Kwara State Nigeria. A retrospective descriptive study of the adverse events follow

Negative / Null Result ReportOpen accessPsychiatry

Association between triglyceride glucose index and suicide attempts in patients with first-episode drug-naïve major depressive disorder

Junjun Liu, Junjun Liu, Junjun Liu et al. · 2023 · Frontiers in Psychiatry

ObjectiveTriglyceride glucose (TyG) index has been suggested as an alternative indicator of insulin resistance (IR); however, the association between TyG index and suicide attempts (SA) in major depressive disorder (MDD) is unclear. The aim of this study was to investigate the relationship between TyG index and SA in Chinese patients with first-episode drug-naïve (FEDN) MDD.MethodsThis cross-sectional study enrolled 1,718 patients with FEDN MDD aged 34.9 ± 12.4 years from the First Hospital of Shanxi Medical University (Taiyuan, Shanxi Province, China) from September 2016 to December 2018. Mul

View details →DOI: 10.3389/fpsyt.2023.1231524
Negative / Null Result ReportOpen accessImmunologic diseases. Allergy

Association of dengue virus‐specific polyfunctional T‐cell responses with clinical disease severity in acute dengue infection

Dulharie T. Wijeratne, Samitha Fernando, Laksiri Gomes et al. · 2019 · Immunity, Inflammation and Disease

Abstract Introduction Although the role of dengue virus (DENV)‐specific T cells in the pathogenesis of acute dengue infection is emerging, the functionality of virus‐specific T cells associated with milder clinical disease has not been well studied. We sought to investigate how the functionality of DENV–NS3 and DENV–NS5 protein‐specific T cells differ in patients with dengue fever (DF) and dengue hemorrhagic fever (DHF). Methods Using intracellular cytokine assays, we assessed the production of interferon γ (IFNγ), tumor necrosis factor‐α (TNF‐α), macrophage inflammatory protein‐1β (MIP‐1β), a

View details →DOI: 10.1002/iid3.271
Negative / Null Result ReportOpen accessDiseases of the circulatory (Cardiovascular) system

IGFBP7 and left ventricular mass regression: a sub‐analysis of the EMPA‐HEART CardioLink‐6 randomized clinical trial

Pankaj Puar, Nikhil Mistry, Kim A. Connelly et al. · 2023 · ESC Heart Failure

Abstract Aims Given recent suggestions that serum levels of insulin‐like growth factor‐binding protein 7 (IGFBP7) may identify patients who derive greater cardiorenal benefits from treatment with sodium‐glucose transport 2 inhibitors (SGLT2i), this exploratory sub‐analysis of the EMPA‐HEART CardioLink‐6 randomized controlled trial evaluated the association between serum levels of IGFBP7 and empagliflozin‐mediated left ventricular mass regression. Methods and results The EMPA‐HEART CardioLink‐6 trial used gold‐standard cardiac magnetic resonance imaging to detect change in left ventricular mass

View details →DOI: 10.1002/ehf2.14335
Negative / Null Result ReportOpen accessMedicine

Embryo quality and chromosomal abnormality in embryos from couples undergoing assisted reproductive technology using preimplantation genetic screening

Mina Niusha, Seyed Ali Rahmani, Leila Kohan et al. · 2023 · Asian Pacific Journal of Reproduction

Objective: To detect common chromosomal aneuploidy variations in embryos from couples undergoing assisted reproductive technology and preimplantation genetic screening and their possible associations with embryo quality. Methods: In this study, 359 embryos from 62 couples were screened for chromosomes 13, 21, 18, X, and Y by fluorescence insitu hybridization. For biopsy of blastomere, a laser was used to remove a significantly smaller portion of the zona pellucida. One blastomere was gently biopsied by an aspiration pipette through the hole. After biopsy, the embryo was immediately returned to

View details →DOI: 10.4103/2305-0500.365228
Negative / Null Result ReportOpen accessDiseases of the circulatory (Cardiovascular) system

Impact of transradial versus transfemoral access for preprocedural coronary angiography on TAVR-associated complications

Baravan Al-Kassou, Hasanin Al-Shaikh, Adem Aksoy et al. · 2023 · International Journal of Cardiology: Heart & Vasculature

Background: Vascular injury and bleeding complications remain frequent after transcatheter aortic valve replacement (TAVR). Whether the access-site of preprocedural coronary angiography (CAG) affects TAVR-related complications is not known. The aim of this study was to evaluate the impact of transradial (TRA) versus transfemoral access (TFA) for preprocedural CAG on outcomes in patients undergoing subsequent TAVR. Methods: The study cohort included 1002 patients undergoing transfemoral TAVR, of whom 39.4% (395/1002) had undergone radial and 60.6% (607/1002) femoral access for pre-TAVR CAG. The

View details →DOI: 10.1016/j.ijcha.2023.101205
Negative / Null Result ReportOpen accessBusiness

Customers’ Perception regarding Assurance of Bancassurance Channel

Choudhury Mousumi, Singh Ranjit · 2016 · Acta Universitatis Sapientiae: Economics and Business

Bancassurance has evolved as a strong distribution channel in India. Bancassurance means that the insurance company and the bank come together to offer insurance products from the counter of the banks to the bank’s customer. The present study attempts to analyse customers’ perception regarding assurance of bancassurance channel in providing insurance-related services. The study also tries to find out the impact of various demographic variables on customers’ perception regarding assurance of bancassurance channel. The study finds that customers consider bancassurance channel having high assuran

View details →DOI: 10.1515/auseb-2016-0005
Negative / Null Result ReportOpen accessTherapeutics. Pharmacology

Zolpidem Administration and Risk of Hepatocellular Carcinoma: A Case-Control Study in Taiwan

Shih-Wei Lai, Shih-Wei Lai, Cheng-Li Lin et al. · 2017 · Frontiers in Pharmacology

Background/Objectives: Previous studies showed that zolpidem use could be associated with increased cancer risk, but the role of zolpidem on hepatocellular carcinoma (HCC) risk remains undetermined. The study purpose was to examine the association between HCC risk and zolpidem use in Taiwan.Methods: Using the database from the Taiwan National Health Insurance Program, we designed a case-control study which consisted of 77986 subjects aged 20 years or older with newly diagnosed HCC as the case group, and 77986 subjects without HCC as the control group, from 2000 to 2011. Ever use of zolpidem wa

View details →DOI: 10.3389/fphar.2017.00767
Negative / Null Result ReportOpen accessPublic aspects of medicine

Association between the parenting self-efficacy and anthropometric indexes in under 2-year-old children, Qazvin-Iran

Sonia Oveisi, Roghaye Keshavarz Sadegh, Sina Hosainzade et al. · 2025 · Discover Social Science and Health

Abstract Background Parenting self-efficacy (PSE) describes the beliefs and attitudes of parents on their capabilities to perform well on parenting tasks. Considering its direct relation to the physical and mental development of the children, we evaluated PSE in Iranian parents and investigated its potential effects on children's growth as a reflection of their self-regulation. Methods This investigation was conducted in 2019 in Takestan, Iran, and aimed to assess PSE in 300 parents of children under 2 years old. Families filled out a demographic questionnaire and a PSE questionnaire containin

View details →DOI: 10.1007/s44155-025-00196-3
Negative / Null Result ReportOpen accessMedicine

low birth weight risk factors in Basra city

Zainab Almussa · 2021 · The Medical Journal of Basrah University

Abstract: Introduction: Low birth weight is the best indicator of the impact in the health system and the best predictor of mortality and morbidity in the neonatal, post neonatal and childhood periods. Objectives: This study was planned to study the association between birth weight and selected risk factors in Basrah governorate with special reference to: Socio demographic factors, Present obstetric history, Past obstetric history, History of Ante Natal Care, and Medical history. Methods: This is hospital- based cross sectional study was conducted on 362 infants delivered and /or admitted to A

View details →DOI: 10.33762/mjbu.2021.129962.1070
Negative / Null Result ReportOpen accessDentistry

Musculoskeletal disorders in upper limbs in dental students: exposure level to risk factors

Patrícia Petromilli Nordi Sasso Garcia, Camila Pinelli, Juliana dos Reis Derceli et al. · 2015 · Brazilian Journal of Oral Sciences

Aim: This study assessed the risk factors of undergraduate students to develop musculoskeletal disorders (MSD) in the upper limbs, regarding gender, type of dental clinical procedure, mouth region treated, and the four-handed dentistry practice. Methods: Dental students enrolled in the 8th semester in the Araraquara School of Dentistry, UNESP, Brazil, were photographed while practicing 283 dental procedures. The Rapid Upper Limb Assessment (RULA) method was used to evaluate the working postures of each student. The photographs were evaluated and a final risk score was attributed to each analyz

View details →DOI: 10.20396/bjos.v11i2.8641448
Negative / Null Result ReportOpen accessNeurology. Diseases of the nervous system

An examination of the Apo-1/Fas promoter Mva I polymorphism in Japanese patients with multiple sclerosis

Yabe Ichiro, Miyagishi Ryuji, Fukazawa Toshiyuki et al. · 2002 · BMC Neurology

Abstract Background The Apo-1/Fas (CD95) molecule is an apoptosis-signaling cell surface receptor belonging to the tumor necrosis factor (TNF) receptor family. Both Fas and Fas ligand (FasL) are expressed in activated mature T cells, and prolonged cell activation induces susceptibility to Fas-mediated apoptosis. The Apo-1/Fas gene is located in a chromosomal region that shows linkage in multiple sclerosis (MS) genome screens, and studies indicate that there is aberrant expression of the Apo-1/Fas molecule in MS. Methods Mva I polymorphism on the Apo-1/Fas promoter gene was detected by PCR-RFLP

View details →DOI: 10.1186/1471-2377-2-8