18,390 results match your criteria correlation ratios


FEV1/FEV6 is effective as a surrogate for FEV1/FVC in the diagnosis of chronic obstructive pulmonary disease.

Indian J Tuberc 2021 Apr 6;68(2):230-235. Epub 2020 Sep 6.

Department of Pulmonary Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, India.

Background And Objective: Chronic Obstructive Pulmonary Disease (COPD) causes substantial morbidity and mortality across the globe. Diagnosis of COPD requires post-bronchodilator FEV1/FVC <0.70 as per GOLD Guidelines. Read More

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Urinary N-terminal pro-B-type natriuretic peptide as a biomarker for cardiovascular events in a general Japanese population: the Hisayama Study.

Environ Health Prev Med 2021 Apr 12;26(1):47. Epub 2021 Apr 12.

Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.

Background: Epidemiological evidence has shown that serum N-terminal pro-brain natriuretic peptide (NT-proBNP) concentrations, a diagnostic biomarker for heart failure, are positively associated with cardiovascular risk. Since NT-proBNP in serum is excreted in urine, it is hypothesized that urinary NT-proBNP concentrations are correlated with serum concentrations and linked with cardiovascular risk in the general population.

Methods: A total of 3060 community-dwelling residents aged ≥ 40 years without history of cardiovascular disease (CVD) were followed up for a median of 8. Read More

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In vivo detection of beta-amyloid at the nasal cavity and other skull-base sites: a retrospective evaluation of ADNI1/GO.

Ann Nucl Med 2021 Apr 12. Epub 2021 Apr 12.

Department of Medical Imaging, Sunnybrook Health Sciences Centre, Toronto, M4N 3M5, Canada.

Introduction: Amyloid beta (Aβ) is partially cleared from the CSF via skull base perivascular and perineural lymphatic pathways, particularly at the nasal cavity. In vivo differences in Aβ level at the nasal cavity between patients with Alzheimer's disease (AD), subjects with mild cognitive impairment (MCI) and cognitively normal (CN) individuals have not been previously assessed.

Methods: This is a retrospective evaluation of subject level data from the ADNI-1/GO database. Read More

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Experimental Study on Briquette Coal Sample Mechanics and Acoustic Emission Characteristics under Different Binder Ratios.

ACS Omega 2021 Apr 29;6(13):8919-8932. Epub 2021 Mar 29.

School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China.

In order to find briquette coal with mechanical characteristics close to those of raw coal samples, we conducted triaxial compression experiments on raw coal and briquette coal samples with different proportions of cement contents. The mechanical characteristics and acoustic emission (AE) characteristics of the coal samples in the triaxial compression process were analyzed in detail. The test results show that the evolution of deformation and strength characteristics of the briquette coal and raw coal samples follow certain common laws. Read More

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Pulmonary tuberculosis as a risk factor for chronic obstructive pulmonary disease: a systematic review and meta-analysis.

Ann Transl Med 2021 Mar;9(5):390

State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.

Background: Prior pulmonary tuberculosis (TB) can cause permanent changes in lung anatomy and is associated with lung function loss. However, it remains unclear whether pulmonary function impairment owing to TB is associated with airflow obstruction, the hallmark of chronic obstructive pulmonary disease (COPD). The aim of this systematic review and meta-analysis was to assess the association and quantify the magnitudes of association between pulmonary TB and COPD, and to evaluate the prevalence of COPD in patients with prior pulmonary TB. Read More

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Electrochemical Activation of Atomic Layer-Deposited Cobalt Phosphate Electrocatalysts for Water Oxidation.

ACS Catal 2021 Mar 15;11(5):2774-2785. Epub 2021 Feb 15.

Department of Applied Physics, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands.

The development of efficient and stable earth-abundant water oxidation catalysts is vital for economically feasible water-splitting systems. Cobalt phosphate (CoPi)-based catalysts belong to the relevant class of nonprecious electrocatalysts studied for the oxygen evolution reaction (OER). In this work, an in-depth investigation of the electrochemical activation of CoPi-based electrocatalysts by cyclic voltammetry (CV) is presented. Read More

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Noninvasive Intracranial Pressure Monitoring in Chronic Stroke Patients with Sedentary Behavior: A Pilot Study.

Acta Neurochir Suppl 2021 ;131:55-58

Department of Physical Therapy, Federal University of São Carlos-UFSCar, São Carlos, São Paulo, Brazil.

Objective: This study aimed to correlate the P2/P1 ratio of intracranial pressure waveforms with sedentary behavior during the chronic stage of stroke.

Materials And Methods: Eight patients from São Carlos, Brazil, who had hemiparesis and stroke onset within the previous 6 months, participated in this study. To monitor their intracranial pressure, we used noninvasive Brain4Care intracranial pressure monitoring during a postural change maneuver involving 15 min in a supine position and 15 min in an orthostatic position. Read More

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January 2021

Non-contrast pulmonary perfusion MRI in patients with cystic fibrosis.

Eur J Radiol 2021 Mar 31;139:109653. Epub 2021 Mar 31.

Department of Diagnostic and Interventional Radiology, University Hospital Würzburg, Oberdürrbacher Straße 6, 97080, Würzburg, Germany.

Purpose: This study aimed to assess the feasibility of Self-gated Non-Contrast-Enhanced Functional Lung (SENCEFUL) MRI for detection of pulmonary perfusion deficits in patients with cystic fibrosis.

Methods: Twenty patients with cystic fibrosis and 20 matched healthy controls underwent SENCEFUL-MRI at 1.5 T with reconstruction of perfusion and perfusion phase maps (i. Read More

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Association between VPS13C rs2414739 polymorphism and Parkinson's disease risk: A meta-analysis.

Neurosci Lett 2021 Apr 7:135879. Epub 2021 Apr 7.

Department of Neurology, Affiliated Hospital of Qingdao University, Qingdao, China. Electronic address:

Objective: We aimed to estimate the role of vacuolar protein sorting 13C (VPS13C) gene single nucleotide polymorphism (SNP) rs2414739 variant in the risk of PD by meta-analysis.

Methods: Five eligible case-control studies including 2796 PD cases and 4138 health controls involved in this meta-analysis. The fixed or random effect model was selected based on the heterogeneity of the included studies which detected by I and Q tests. Read More

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Characterization and purification of pentameric chimeric protein particles using asymmetric flow field-flow fractionation coupled with multiple detectors.

Anal Bioanal Chem 2021 Apr 10. Epub 2021 Apr 10.

C2P s.r.o. (NEXARS), The Campus Science Park, Palachovo náměstí 726/2, 625 00, Brno, Czech Republic.

Porcine circovirus causes the post-weaning multi-systemic wasting syndrome. Despite the existence of commercial vaccines, the development of more effective and cheaper vaccines is expected. The usage of chimeric antigens allows serological differentiation between naturally infected and vaccinated animals. Read More

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An assessment of PM levels based on indicative PM measurements and relationships with PM and PM concentrations, for the analysis of hospital admissions and mortality in the Moravian region.

Med Pr 2021 Mar 30. Epub 2021 Mar 30.

Institute of Public Health, Ostrava, Czech Republic.

Background: Particulate matter (PM) air pollution is a serious concern in the city of Ostrava. Thus, in 2018, a project entitled "Validation of the relationships between PM, PM and PM concentrations, and morbidity and mortality, in the heavily polluted region in the Czech Republic," was launched. The relationship between hospital admissions and mortality in the said region is based primarily on short-term PM and PM concentrations and indicative PM measurement. Read More

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Image quality is resilient against tube voltage variations in post-mortem skeletal radiography with a digital flat-panel detector.

Sci Rep 2021 Apr 8;11(1):7701. Epub 2021 Apr 8.

Institute of Radiology, Schwarzwald-Baar Klinikum, Villingen-Schwenningen, Germany.

In recent phantom studies low-contrast detectability was shown to be independent from variations in tube voltage in digital radiography (DR) systems. To investigate the transferability to a clinical setting, the lower extremities of human cadavers were exposed at constant detector doses with different tube voltages in a certain range, as proposed in the phantom studies. Three radiologists independently graded different aspects of image quality (IQ) in a comparative analysis. Read More

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Adverse body measurements are superior to sarcopenia-associated measurements in predicting chronic diseases.

Sci Rep 2021 Apr 8;11(1):7749. Epub 2021 Apr 8.

Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan.

Few studies have demonstrated an association of sarcopenia-associated body measurements with chronic diseases through a comprehensive methodology. This study aims to examine the relationship between sarcopenia-associated body measurements and chronic diseases. This is a cohort study. Read More

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Diagnostic rather than prognostic markers-relationship between EpCAM overexpression and lung cancer: a meta-analysis.

Ann Palliat Med 2021 Mar 23. Epub 2021 Mar 23.

Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.

Background: Epithelial cell adhesion molecule (EpCAM) is one of the most commonly used markers of cancer stem cells (CSCs). However, the diagnostic and prognostic significance of EpCAM in lung cancer remains largely undetermined. In the present study, we systematically summarized and elucidated the correlation between EpCAM overexpression and lung cancer through a meta-analysis. Read More

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