104 research outputs found
Diagnosis diabetes on the basis of information extracted from the ECG signal using Artificial Neural Networks
Background and aims: Diabetes is known to be one of the most common diseases worldwide. Lack of an early and appropriate diagnosis is considered to be a main problem associated with diabetes. The aim of this study was to offer a novel approach to diagnose diabetes and, for the first time, investigates the correlation between ECG and diagnosis of diabetes using artificial neural network and data analysis algorithms.
Methods: In this study, 8 patients with diabetes and 64 healthy subjects were enrolled. ECG was conducted on all the participants. The necessary data including age, HR, p, t, RR, PP, P, PR, qt, and qtcb were drawn from ECG and collected in database. To classify the patients, tentative neural networks and standard algorithms were used. The data were analyzed using data analysis algorithms and different approaches, and the results of each investigation were compared with reference to appropriate rate. Weka software was used for ranking.
Results: The accuracy of detection of regulations-based algorithms and neural network, with better results in diabetes diagnosis, was higher than that of decision tree and interval-based algorithms. The best qualification rate (0.89) was obtained for ConsistencySubset Eval and QRS wave was reported the best choice in all algorithms. Investigating the data on people with and without diabetes using tentative neural networks showed an appropriate rate of 95%. Furthermore, KNN algorithm displayed the lowest time complexity.
Conclusion: Regulations-based model displayed the highest accuracy compared with all classification algorithms for data analysis used in the study
Compare the effect of high and low doses of atorvastatin on the levels of high-sensitivity C-reactive protein in patients with acute coronary syndrome
Background: Findings of other researches indicate that inflammation process is one of the most important molecular interactions mediated in atherosclerosis and the inflammation indexes of plasma level such as high-sensitivity C-reactive protein (hs-CRP) is regarded to predict the risk of cardio-vascular diseases. According to various studies, statins are certainly effective in the prevention of atherosclerosis and anti-inflammatory role of atorvastatin by lowering effect on hs-CRP can be considered. The aim of this study was to compare the effect of high and low doses of atorvastatin on levels of hs-CRP in patients with acute coronary syndrome.Methods: This is a clinical trial study that has been done on 180 patients with acute coronary syndrome who referred to Imam Khomeini hospital in Ardabil. Patients were divided in 2 groups randomly. Atorvastatin with low dose (20mg) and high dose (40mg) with routine treatments were given to first and second groups, respectively. The hs-CRP level was evaluated for all patients in hospitalized time and third month late. Data were collected and analyzed by statistical methods in SPSS.19.Results: Of all patients, 40 patients (22.2%) was assayed with STEMI, 8 patients (4.4%) with N/Q WMI and132 patients (73.3%) with U/A. 125 patients (69.4%) were male and rest of them were female. The age average of patients was 59.1±8.1 years. 74 (41.1%) of patients had blood pressure and 35 (19.4%) use smoke. After three months, in group with low dose, 81 patients (90%) and in group with high dose 85 patients (94.4%) improved. The atorvastatin with high dose could significantly decrease the hs-CRP ratio with 40% more than other group with 13.3%.Conclusions: In this study high dosage of atorvastatin could lessen significantly the hs-CRP and LDL ratio compared to atorvastatin with low dosage
In vitro Cytotoxic Activity of Four Plants Used in Persian Traditional Medicine
Purpose: The aim of this study was to investigate in vitro cytotoxic activity of four methanolic crude plant extracts against panel cell lines. Methods: Methanolic extracts were tested for their possible antitumor activity and cytotoxicity using the 3-(4,5-dimetylthiazol-2-yl)-2,5- diphenyltetrazolium bromide (MTT) assay on six cancer cell lines; non-Hodgkin’s B-cell lymphoma (Raji), human leukemic monocyte lymphoma (U937), human acute myelocytic leukemia (KG-1A), human breast carcinoma (MCF-7 cells), human Prostate Cancer (PC3) and mouse fibrosarcoma (WEHI-164) cell lines and one normal cell line; Human Umbilical Vein Endothelial Cells (HUVEC). Results: All species showed dose dependent inhibition of cell proliferation. IC50 values ranging from 25.66±1.2 to 205.11±1.3 μg/ml. The highest cytotoxic activity Chelidonium majus L> Ferulago Angulata DC> Echinophora platyloba DC> Salvia officinalis L, respectively. Conclusion: all extracts demonstrate promising cytotoxicity activity as a natural resource for future bio-guided fractionation and isolation of potential antitumor agents
Induction of CD14 Expression and Differentiation to Monocytes or Mature Macrophages in Promyelocytic Cell Lines: New Approach
Purpose: CD14, one of the main differentiation markers on the surface of myeloid lineage cells, acts as a key role in activation of LPS-induced monocytes. LPS (lipopolysaccharide) binds to LPS-binding protein in plasma and are delivered to the cell surface receptor CD14. In this study, Various stimuli [Dimethyl Sulfoxide (DMSO), active 1,25-dihydroxyvitamin D3 [1,25(OH)2D3] and LPS], either alone or in combination, have been recognized that have an effect on the level of CD14 expression in the human HL-60 and U937 promonocytic cell lines and therefore induce their terminal differentiation into monocytes or mature macrophages. Methods: U937 and HL-60 cells were cultured in RPMI 1640 supplemented with 10% FBS. For each cell line, 1×106 cells were seeded for 72 hours with DMSO, 14 days with LPS and 18 days with 1, 25-D3 in each well plate; then ELISA method was used to study their responses to the factors by means of anti-CD14. Results: ELISA assay demonstrated that U937 and HL-60 cells were induced by both [1,25(OH)2D3] and DMSO to obtain characteristics of adherent cells and express CD14 protein; moreover, LPS at a low dose increased CD14 expression on surface of this cells. Conclusion: According to the our results, it is speculated that CD14 gene expression may be induced in human U937 and HL-60 cell lines by different factors including 1,25-D3, DMSO and LPS
Development of a CuCl/phosphine system to catalyze phenylation and methylation of -tosyl aldimines with phenylboronic and methylboronic acids
The addition of phenylboronic and methylboronic acids to activated aromatic aldimines was demonstrated in the presence of copper(I)–phosphine complexes. The desired products were obtained using copper chloride/phosphine, and potassium fluoride in under toluene reflux, in moderate-to-good yield and a suitable reaction time
Development of a CuCl/phosphine system to catalyze phenylation and methylation of -tosyl aldimines with phenylboronic and methylboronic acids
The addition of phenylboronic and methylboronic acids to activated aromatic aldimines was demonstrated in the presence of copper(I)–phosphine complexes. The desired products were obtained using copper chloride/phosphine, and potassium fluoride in under toluene reflux, in moderate-to-good yield and a suitable reaction time
ERYTHROCYTE MEMBRANE FATTY ACIDS IN MULTIPLE SCLEROSIS PATIENTS AND HOT-NATURE DIETARY INTERVENTION WITH CO-SUPPLEMENTED HEMP-SEED AND EVENING-PRIMROSE OILS
The risk of developing multiple sclerosis (MS) is associated with increased dietary intake of saturated fatty acids. For many years it has been suspected that this disease might be associated with an imbalance between unsaturated and saturated fatty acids. We determined erythrocyte membrane fatty acids levels in Hot nature dietary intervention with co-supplemented hemp seed and evening primrose oils in multiple sclerosis patients. To determine the erythrocyte membrane fatty acids levels and correlate it with expanded disability status scale (EDSS) at baseline after 6 months intervention in MS patients by gas chromatography, in this double blind, randomized trial, 100 RRMS patients with EDS
Non-alcoholic fatty liver disease is not independent risk factor for cardiovascular disease event : a cohort study
There are no consistent results between previous studies for an independent association between non-alcoholic fatty liver disease (NAFLD) and cardiovascular disease (CVD) events. To determine if there is an independent association between NAFLD and CVD events. In the present study, valid outcome data of 4808 subjects were available for phase 2 of our cohort study. These subjects had been followed up for seven years from phase 1, beginning in 2009-2010 to phase 2 during 2016-2017. Simple and multiple Cox proportional models were used to determine the association between NAFLD in the primary phase of the cohort and subsequent fatal and non-fatal CVD events during follow-up. The incidence of non-fatal CVD events in males with NAFLD was significantly higher ( = 0.004) than in males without NAFLD. A positive association was demonstrated between NAFLD and non-fatal CVD events in males (Hazard ratio = 1.606; 95%CI: 1.166-2.212; = 0.004) by the simple Cox proportional hazard model, but no independent association was detected between these in the multiple Cox models. No independent association was detected between NAFLD and CVD. It is likely that diabetes mellitus and age may be the principle mediators in this regard. [Abstract copyright: ©The Author(s) 2020. Published by Baishideng Publishing Group Inc. All rights reserved.
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