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Likelihood ratios

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https://www.readbyqxmd.com/read/29783275/assessment-of-likelihood-ratio-for-four-contact-dermatitis-symptoms-of-vinca-minor
#1
Suman Bagchi, Chaturbhuja Nayak, Lex Rutten, Munmun Koley, Subhranil Saha, Mousumi Roy, Sk Jahir Abbas, Simantini Ghosh, Suman Halder, Ghulam Nabi Wani, Anaitulah Ahmad Mir, Showket Ahmad Bhat
BACKGROUND:  Contact dermatitis (CD) is a frequently occurring medical condition, for which Vinca minor (VM) is one of the recommended homeopathic medicines. However, the symptoms indicating this medicine have not yet been assessed systematically. Likelihood ratio (LR), based on Bayesian statistics, may yield better estimation of a medicine's indication than the existing method of entry of symptoms into materia medica and repertories. METHODS:  We investigated LRs of four CD symptoms of VM: (1) great sensitiveness of skin, with redness and soreness from slightest rubbing; (2) weeping eczema with foul, thick crusts; (3) itching amelioration in open air; and (4) CD of scalp...
May 21, 2018: Homeopathy: the Journal of the Faculty of Homeopathy
https://www.readbyqxmd.com/read/29783171/ghep-isfg-collaborative-exercise-on-mixture-profiles-ghep-mix06-reporting-conclusions-results-and-evaluation
#2
P A Barrio, M Crespillo, J A Luque, M Aler, C Baeza-Richer, L Baldassarri, E Carnevali, P Coufalova, I Flores, O García, M A García, R González, A Hernández, V Inglés, G M Luque, A Mosquera-Miguel, S Pedrosa, M L Pontes, M J Porto, Y Posada, M I Ramella, T Ribeiro, E Riego, A Sala, V G Saragoni, A Serrano, S Vannelli
One of the main goals of the Spanish and Portuguese-Speaking Group of the International Society for Forensic Genetics (GHEP-ISFG) is to promote and contribute to the development and dissemination of scientific knowledge in the field of forensic genetics. Due to this fact, GHEP-ISFG holds different working commissions that are set up to develop activities in scientific aspects of general interest. One of them, the Mixture Commission of GHEP-ISFG, has organized annually, since 2009, a collaborative exercise on analysis and interpretation of autosomal short tandem repeat (STR) mixture profiles...
May 18, 2018: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/29782657/phantom-clinical-and-texture-indices-evaluation-and-optimization-of-a-penalized-likelihood-image-reconstruction-method-q-clear-on-a-bgo-pet-ct-scanner
#3
Gabriel Reynés-Llompart, Cristina Gámez-Cenzano, José Luís Vercher-Conejero, Aida Sabaté-Llobera, Nahúm Calvo-Malvar, Josep M Martí-Climent
INTRODUCTION: The aim of this study was to evaluate the behavior of a penalized-likelihood image reconstruction method (Q.Clear) under different count statistics and lesion-to-background ratios (LBR) on a BGO scanner, in order to obtain an optimum penalization factor (β value) to study and optimize for different acquisition protocols and clinical goals. METHODS: Both phantom and patient images were evaluated. Data from an image quality phantom were acquired using different Lesion-to-Background ratios and acquisition times...
May 21, 2018: Medical Physics
https://www.readbyqxmd.com/read/29782466/mucin-expression-in-colorectal-cancer-crc-systematic-review-and-meta-analysis
#4
Yaron Niv, Theodore Rokkas
BACKGROUND: A body of evidence has suggested that mucins play an important role in adhesion, invasion, and cancer metastasis. However, this evidence is scarce and sometimes confusing. OBJECTIVE: We performed a systematic review and meta-analysis of available studies to better define the role of mucins in the behavior of colorectal cancer (CRC). METHODS: Medical literature was searched through November 30, 2017, using suitable keywords. Pooled estimates, that is, odd ratios (ORs), were obtained using fixed or random-effects models, as appropriate...
May 18, 2018: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/29782393/clinical-and-prognostic-value-of-18f-fdg-pet-ct-in-restaging-of-pancreatic-cancer
#5
Domenico Albano, Demetrio Familiari, Roberta Gentile, Salvatore Scalisi, Federico Midiri, Marco Messina, Massimiliano Spada, Maria C Fornito, Massimo Galia, Massimo Midiri, Pierpaolo Alongi
AIM: The aim of this retrospective multicentre study was to evaluate the clinical and prognostic effect of fluorine-18-fluorodeoxyglucose (F-FDG)-PET/computed tomography (CT) in the restaging process of pancreatic cancer (PC). MATERIALS AND METHODS: Data from patients treated for primary PC, who underwent F-FDG-PET/CT for suspicious of disease progression, were collected. Accuracy was assessed employing conventional diagnostic procedures, multidisciplinary team case notes, further F-FDG-PET/CT scans and/or follow-up...
May 18, 2018: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/29782266/-the-association-of-gene-polymorphisms-of-matrix-metalloproteinases-9-12-and-20-and-collagen-type-i-degradation-products-with-the-remodeling-of-the-left-ventricle-in-patients-with-acute-myocardial-infarction
#6
N A Sokolova, M S Danshova, A V Govorin, D N Zaytsev, Y N Smolyakov
OBJECTIVE: to study associations of polymorphism of the genes MMP9 rs17576, MMP12 rs2276109, MMP20 rs2245803, COL1A1 rs1800012, COL1A1 rs1107946 with remodeling of the left ventricle in patients with acute myocardial infarction. MATERIALS AND METHODS: We examined 84 patients with myocardial infarction (MI). Type of early postinfarction left ventricular (LV) remodeling was determined by echocardiography on the third day of the disease. Concentration of matrix metalloproteinases (MMP) was measured by enzyme immunoassay using commercial kits; content of C-terminal telopeptide of collagen type I degradation products (ICTP) was measured by chemiluminescent immunoassay...
March 2018: Kardiologiia
https://www.readbyqxmd.com/read/29781110/initial-derivation-of-diagnostic-clusters-combining-history-elements-and-physical-examination-tests-for-symptomatic-knee-osteoarthritis
#7
Simon Décary, Debbie Feldman, Pierre Frémont, Jean-Pierre Pelletier, Johanne Martel-Pelletier, Michel Fallaha, Bruno Pelletier, Sylvain Belzile, Marie-Pierre Sylvestre, Pascal-André Vendittoli, François Desmeules
INTRODUCTION: The aim of the present study was to assess the validity of clusters combining history elements and physical examination tests to diagnose symptomatic knee osteoarthritis (SOA) compared with other knee disorders. METHODS: This was a prospective diagnostic accuracy study, in which 279 consecutive patients consulting for a knee complaint were assessed. History elements and standardized physical examination tests were obtained independently by a physiotherapist and compared with an expert physician's composite diagnosis, including clinical examination and imaging...
May 21, 2018: Musculoskeletal Care
https://www.readbyqxmd.com/read/29780624/diagnostic-performance-of-fluorine-18-fluorodeoxyglucose-positron-emission-tomography-in-the-management-of-solitary-pulmonary-nodule-a-meta-analysis
#8
Duilio Divisi, Mirko Barone, Luca Bertolaccini, Gino Zaccagna, Francesca Gabriele, Roberto Crisci
Background: In the setting of solitary pulmonary nodules (SPNs), fluorine-18 fluorodeoxyglucose positron emission tomography/computed tomography (18 F-FDG-PET/CT) is considered a useful non-invasive diagnostic tool though false positive (FP) and false negative (FN) results affects accuracy due to different conditions, such as inflammatory diseases or low-uptake neoplasms. Aim of this study is to evaluate overall diagnostic performance of 18 F-FDG-PET/CT for malignant pulmonary nodules...
April 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29779770/normalised-quantitative-polymerase-chain-reaction-for-diagnosis-of-tuberculosis-associated-uveitis
#9
Manas Ranjan Barik, Soveeta Rath, Rohit Modi, Rajkishori Rana, Mamatha M Reddy, Soumyava Basu
Polymerase chain reaction (PCR)-based diagnosis of tuberculosis-associated uveitis (TBU) in TB-endemic countries is challenging due to likelihood of latent mycobacterial infection in both immune and non-immune cells. In this study, we investigated normalised quantitative PCR (nqPCR) in ocular fluids (aqueous/vitreous) for diagnosis of TBU in a TB-endemic population. Mycobacterial copy numbers (mpb64 gene) were normalised to host genome copy numbers (RNAse P RNA component H1 [RPPH1] gene) in TBU (n = 16) and control (n = 13) samples (discovery cohort)...
May 2018: Tuberculosis
https://www.readbyqxmd.com/read/29779045/clinical-utility-of-fdg-pet-in-parkinson-s-disease-and-atypical-parkinsonism-associated-with-dementia
#10
REVIEW
Zuzana Walker, Federica Gandolfo, Stefania Orini, Valentina Garibotto, Federica Agosta, Javier Arbizu, Femke Bouwman, Alexander Drzezga, Peter Nestor, Marina Boccardi, Daniele Altomare, Cristina Festari, Flavio Nobili
PURPOSE: There are no comprehensive guidelines for the use of FDG PET in the following three clinical scenarios: (1) diagnostic work-up of patients with idiopathic Parkinson's disease (PD) at risk of future cognitive decline, (2) discriminating idiopathic PD from progressive supranuclear palsy, and (3) identifying the underlying neuropathology in corticobasal syndrome. METHODS: We therefore performed three literature searches and evaluated the selected studies for quality of design, risk of bias, inconsistency, imprecision, indirectness and effect size...
May 19, 2018: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29778898/examining-the-diagnostic-accuracy-of-static-postural-stability-measures-in-differentiating-among-knee-osteoarthritis-patients-with-mild-and-moderate-to-severe-radiographic-signs
#11
Nahid Pirayeh, Mohammad-Jafar Shaterzadeh-Yazdi, Hossein Negahban, Mohammad Mehravar, Neda Mostafaee, Amal Saki-Malehi
BACKGROUND: Clinicians need a reliable and accurate tools that can best identify and classify balance impairments between mild and moderate to severe grades of knee osteoarthritis (OA). RESEARCH QUESTION: This study was designed to investigate the accuracy of postural measurements to discriminate between these two groups of knee OA. METHODS: A total of 130 patients with knee OA based on the Kellgren-Lawrence (KL) grading scale were categorized into 65 patients with mild (a KL grade≤ 2) and 65 patient with moderate to severe (a KL grade≥3) radiographic sign...
May 12, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29778774/continuous-opioid-substitution-treatment-over-five-years-heroin-use-trajectories-and-outcomes
#12
Brian Eastwood, John Strang, John Marsden
BACKGROUND: This is the first national study in England of continuous long-term opioid substitution treatment (OST). METHODS: All adults were admitted to community OST for opioid use disorder (OUD) in 2008/09 with continuous enrolment to 2013/14 (n = 7719). Heroin use trajectories were identified by multilevel Latent Class Growth Analysis. In Year 6 and 7 of follow-up, the outcome measure (analysed by multilevel, multivariable logistic regression) was 'successful completion and no re-presentation' (SCNR) to community treatment within six months...
May 16, 2018: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/29778660/sarcoidosis-diagnostic-score-sds-a-systematic-evaluation-to-enhance-the-diagnosis-of-sarcoidosis
#13
Alexandra N Bickett, Elyse E Lower, Robert P Baughman
BACKGROUND: The diagnosis of sarcoidosis is made by the combination of clinical features and biopsy results. The clinical features of sarcoidosis can be quite variable. We developed a Sarcoidosis Diagnostic Score (SDS) to summarize the clinical features of possible sarcoidosis patients. METHODS: Biopsy confirmed sarcoidosis patients seen during a seven-month time period at the University of Cincinnati Sarcoidosis clinic were prospectively identified. Non-sarcoidosis patients seen at the same clinic were used as controls...
May 17, 2018: Chest
https://www.readbyqxmd.com/read/29778639/sarc-f-for-screening-of-sarcopenia-among-older-adults-a-meta-analysis-of-screening-test-accuracy
#14
Satoshi Ida, Ryutaro Kaneko, Kazuya Murata
OBJECTIVE: To examine the screening ability of SARC-F for older adults using a meta-analysis. DESIGN: Meta-analysis. SETTING AND PARTICIPANTS: The literature review was conducted using MEDLINE, Cochrane Database of Systematic Reviews, and ClinicalTrials.gov. Articles written on and after 1960 that included data regarding the sensitivity and specificity of SARC-F's diagnostic criteria for sarcopenia in older adults were searched. MEASURES: The bivariate random effects model was used to calculate the summary estimates of sensitivity, specificity, positive likelihood ratio (PLR), negative likelihood ratio (NLR), and diagnostic odds ratio (DOR)...
May 16, 2018: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/29778046/evaluation-of-the-microhaplotypes-panel-for-dna-mixture-analyses
#15
Peng Chen, Caiyong Yin, Zheng Li, Yan Pu, Youjia Yu, Peng Zhao, Dexin Chen, Weibo Liang, Lin Zhang, Feng Chen
The identification of a suspect in a DNA mixture typed with the standard short tandem repeat polymorphism (STR) kits has faced challenges. Several improved methods or technologies have been introduced to address this issue. However, some complex situations in the process remain elusive. In the present study, we presented a panel of 26 tiny microhaplotypes, each generating a relatively high (>3.0) effective number of alleles (Ae ) and possessing low (<50 bp) sequence lengths. The average Ae and heterozygosity values among the 9 populations of 26 microhaps were in ranges from 2...
May 12, 2018: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/29777562/post-operative-stereotactic-radiotherapy-for-the-treatment-of-intracranial-haemangiopericytoma-a-study-of-dose-and-outcome
#16
Rohan Nair, Vanessa Panettieri, Joe H Chang, Michael Dally
INTRODUCTION: This study was performed to assess the relationship between tumour response and radiation dose in equivalent 2 Gy per fraction (EQD2). METHOD: A retrospective cohort analysis of 21 patients with a diagnosis of intracranial haemangiopericytoma between 2000 and 2013 was included in this study. A total of 39 lesions were analysed. The equivalent dose in 2 Gy per fraction was calculated by assigning an alpha-beta ratio of 12 Gy. A paired t-test compared dose (EQD2) and tumour response, and as the outcome was binary, a logistic regression analysis was performed...
May 19, 2018: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/29776368/comparing-risk-environments-for-hiv-among-people-who-inject-drugs-from-three-cities-in-northern-mexico
#17
Angelica Ospina-Escobar, Carlos Magis-Rodríguez, Fatima Juárez, Dan Werb, Sergio Bautista Arredondo, Rubén Carreón, María Elena Ramos, Steffanie Strathdee
BACKGROUND: A large body of research has investigated the rise of injection drug use and HIV transmission in Tijuana and Ciudad Juarez (CJ). However, little is known about the dynamics of injecting in Hermosillo. This study compares drug-related behaviors and risk environment for HIV of people who inject drugs (PWID) across Tijuana, CJ, and Hermosillo to identify factors that could explain differences in HIV prevalence. METHODS: Data from Tijuana belong to a prospective study (El Cuete IV)...
May 18, 2018: Harm Reduction Journal
https://www.readbyqxmd.com/read/29776331/genome-wide-detection-of-selection-signatures-in-chinese-indigenous-laiwu-pigs-revealed-candidate-genes-regulating-fat-deposition-in-muscle
#18
Minhui Chen, Jiying Wang, Yanping Wang, Ying Wu, Jinluan Fu, Jian-Feng Liu
BACKGROUND: Currently, genome-wide scans for positive selection signatures in commercial breed have been investigated. However, few studies have focused on selection footprints of indigenous breeds. Laiwu pig is an invaluable Chinese indigenous pig breed with extremely high proportion of intramuscular fat (IMF), and an excellent model to detect footprint as the result of natural and artificial selection for fat deposition in muscle. RESULT: In this study, based on GeneSeek Genomic profiler Porcine HD data, three complementary methods, FST , iHS (integrated haplotype homozygosity score) and CLR (composite likelihood ratio), were implemented to detect selection signatures in the whole genome of Laiwu pigs...
May 18, 2018: BMC Genetics
https://www.readbyqxmd.com/read/29776330/robust-joint-score-tests-in-the-application-of-dna-methylation-data-analysis
#19
Xuan Li, Yuejiao Fu, Xiaogang Wang, Weiliang Qiu
BACKGROUND: Recently differential variability has been showed to be valuable in evaluating the association of DNA methylation to the risks of complex human diseases. The statistical tests based on both differential methylation level and differential variability can be more powerful than those based only on differential methylation level. Anh and Wang (2013) proposed a joint score test (AW) to simultaneously detect for differential methylation and differential variability. However, AW's method seems to be quite conservative and has not been fully compared with existing joint tests...
May 18, 2018: BMC Bioinformatics
https://www.readbyqxmd.com/read/29775859/facilitating-complex-dna-mixture-interpretation-by-sequencing-highly-polymorphic-haplotypes
#20
Lev Voskoboinik, Uzi Motro, Ariel Darvasi
Interpretation of complex DNA mixtures is an ongoing challenge in the field of forensic genetics. Commonly used STR markers are quite polymorphic, enabling very high statistical association between a single source DNA profile from a crime scene and a matching suspect. STR typing of low order mixtures with two and three contributors also commonly produces high statistical association for a contributor, using current interpretation software. However higher order mixtures, with four contributors or more, are more challenging...
May 2, 2018: Forensic Science International. Genetics
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