- Volume:17 Issue: 2, 2016
- تاریخ انتشار: 1395/01/09
- تعداد عناوین: 5
Page 1BackgroundUric acid, a product of purine degradation, is a risk factor for cardiovascular disease. Studies have demonstrated a relationship between uric acid and increased inflammatory and oxidative stress in the general population. Recent studies also confirmed the role of inflammatory factors and oxidative stress in atrial fibrillation (AF)..ObjectivesThe purpose of this study was to investigate the relationship between serum uric acid levels and the risk of AF..
Patients andMethodsThis case-control study consisted of 32 patients with AF and 32 healthy controls. Both groups were matched by age, sex, and underlying disease. The diagnosis of AF was based on an electrocardiogram and confirmed by a cardiologist. Patients with heart failure, coronary artery disease, recent infection, renal failure, thyroid disorders and malignancy or who were treated with drugs affecting serum uric acid were excluded. The uric acid levels in both groups were measured using an enzymatic method. The mean serum uric acid of the two groups was compared with a t-test and SPSS software..ResultsThe female to male ratio in the two groups was 1.28. The mean age of the patients in the AF group and control group was 69.12 ± 11.8 and 67.75 ± 14.8, respectively. There were no significant differences in the age and sex of the two groups. The mean serum uric acid in the AF group and control group was significantly different (5.79 ± 1.19 mg/dL and 4.81 ± 1.26 mg/dL, respectively; P = 0.002)..ConclusionsThe results suggest that serum uric acid can be considered a risk factor for AF. Further studies are recommended to investigate the role of uric acid reduction in the prevention and treatment of AF..Keywords: Atrial Fibrillation, Adult, Uric Acid
The Effect of Pulsed Electromagnetic Fields on Microleakage of Amalgam Restorations: An in Vitro StudyPage 2BackgroundPrevious studies have reported an increase in the mercury release from dental amalgam restorations, following exposure to electromagnetic fields generated by sources such as mobile phones and magnetic resonance imaging (MRI). It has also been shown that MRI increases microleakage of amalgam restorations. In this study, Helmholtz coils are used for generating pulsed electromagnetic fields (PEMF)..ObjectivesThe purpose of this study was to evaluate the effect of PEMFs on microleakage of amalgam restorations, using a pair of Helmholtz coils..
Patients andMethodsStandardized class V cavities were prepared on the facial surfaces of 46 non-carious extracted human premolars. Then, the samples were randomly divided into experimental and control groups, each containing 23 teeth. The experimental group was exposed to the uniform magnetic fields generated by a pair helmholtz coils. The magnetic field strength at the central point of the two coils was 0.1 mT. All specimens were placed in 2% basic fuchsin solution. Then the teeth were sectioned, examined under a stereomicroscope, and scored for microleakage according to the degree of dye penetration..ResultsThere was no significant difference between the two groups regarding the microleakage score..ConclusionsThe results of the present study suggest that PEMF exposure does not have adverse effects on microleakage of amalgam restorations..Keywords: Pulsed Electromagnetic Fields, Amalgam, Microleakage, Helmholtz Coils
Investigation on Serum Levels of Interleukin-18 and Interleukin-6 in Patients With Dermatomyositis and PolymyositisPage 3BackgroundDermatomyositis (DM) and polymyositis (PM) are common forms of idiopathic inflammatory myopathy which are characterized by muscle inflammation with an unknown cause. Immune cells infiltrate myofibrils and endomysial capillaries, which leads to damage of muscle fibers through the production of humoral factors and different cytokines..ObjectivesIncreased IL-18 and IL-6 serum levels have been reported in a variety of autoimmune diseases, including rheumatoid arthritis and inflammatory bowel disease. The purpose of this study was to evaluate IL-18 and IL-6 serum levels in DM and PM patients compared to a healthy control group..
Patients andMethodsIn this cross-sectional study, 15 patients with DM, 5 patients with PM, and 20 healthy control subjects were recruited. The levels of serum IL-18 and IL-6 in patients and control groups were measured by using ELISA assay. Blood tests were taken to determine the levels of C-reactive protein (CRP) and creatine kinase (CK) and were measured by standard methods. Statistical analyses were performed using the Mann-Whitney U-test with a non-Gaussian population using SPSS 19 software..ResultsIL-18 levels were significantly higher in DM patients and PM patients before treatment compared to healthy control subjects (P = 0.001, P = 0.01, respectively). There were no significant differences between DM and PM patients before treatment with healthy controls for IL-6 serum levels (P = 0.51, P = 0.43, respectively)..ConclusionsSerum IL-18 contributes to the immunopathogenesis of DM and PM and would be a useful marker for the diagnosis and treatment of diseases. IL-6 has a less pivotal role in the pathology of DM and PM..Keywords: Dermatomyositis, Polymyositis, Interleukin, 18, Interleukin, 6
The Identification and Classification of Deployment Challenges Related to Electronic Health Records: A Review ArticlePage 4Context: The implementation and operation activities related to electronic health records (EHRs) have increased in different countries, and their importance is clear. However, the deployment of an EHR system depends on many factors that must be considered during implementation. The goal of this study was to identify and classify the challenges related to EHR deployment..
Evidence Acquisition: The present study involved a literature review that was carried out through a search on the ISI, PubMed, DOAJ, Scopus, Science Direct, and Google Scholar databases, as well as the Google and Yahoo search engines, using the relevant MeSH keywords and focusing on the period of 2005 - 2015. The data were collected in an Excel file and analyzed based on the study objectives..ResultsFrom the investigation of related articles, we found that the deployment of EHRs faces many challenges that can be classified into six main categories. These are economic, behavioral, human, technical, legal, and organizational challenges..ConclusionsWith regard to the obtained results, it is recommended that the authorities put effort into resolving the economic, behavioral, human, technical, legal, and organizational challenges related to the implementation and deployment of EHRs..Keywords: Medical Informatics, Health Information Systems, Electronic Health Records