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Amiri F, Jamali AA, Gharibvand LK. Tracing air pollution changes (CO, NO2, SO2, and HCHO) using GEE and Sentinel 5P images in Ahvaz, Iran. Environ Monit Assess 2023; 195:1259. [PMID: 37777996 DOI: 10.1007/s10661-023-11885-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 09/14/2023] [Indexed: 10/03/2023]
Abstract
The first case of COVID-19 in Iran was reported on February 25, 2020, leading in the implementation of a government-mandated lockdown as the virus gradually spread to different cities. The objective of this study was to evaluate the impact of the COVID-19 pandemic on air quality in Ahvaz city by utilizing Sentinel 5 images and the Google Earth Engine (GEE) platform. Specifically, the concentrations of air pollutants, including CO, NO2, SO2, and HCHO, during the COVID-19 pandemic from May 10 to June 01, 2021, were examined. Also, they were compared to the same period in 2019. Additionally, the influence of meteorological parameters, such as wind speed and precipitation, on pollutant concentrations during the pandemic and in the pre-pandemic year of 2019 were investigated. The results revealed a significant decrease in the concentrations of NO2 (13.7%), CO (6.1%), SO2 (28%), and HCHO (9.5%) in Ahvaz during the study period in 2021 compared to the same period in 2019. Statistical analyses indicated no significant changes in wind speed and precipitation between the COVID-19 pandemic and the pre-pandemic period in 2019. Therefore, the impact of these parameters on the observed changes in pollutant concentrations can be disregarded. It is clear that the COVID-19 epidemic and the subsequent lockdown measures, including traffic restrictions and business closures, played a crucial role in significantly reducing air pollutant concentrations in Ahvaz.
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Affiliation(s)
- Fatemeh Amiri
- Department of Petroleum Engineering, Masjed-Soleiman Branch, Islamic Azad University, Masjed-Soleiman, Iran
| | - Ali Akbar Jamali
- Department of GIS-RS and Watershed Management, Meybod Branch, Islamic Azad University, Meybod, Yazd, Iran.
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Jamali AA, Kusalik A, Wu FX. NMTF-DTI: A Nonnegative Matrix Tri-factorization Approach With Multiple Kernel Fusion for Drug-Target Interaction Prediction. IEEE/ACM Trans Comput Biol Bioinform 2023; 20:586-594. [PMID: 34914594 DOI: 10.1109/tcbb.2021.3135978] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Prediction of drug-target interactions (DTIs) plays a significant role in drug development and drug discovery. Although this task requires a large investment in terms of time and cost, especially when it is performed experimentally, the results are not necessarily significant. Computational DTI prediction is a shortcut to reduce the risks of experimental methods. In this study, we propose an effective approach of nonnegative matrix tri-factorization, referred to as NMTF-DTI, to predict the interaction scores between drugs and targets. NMTF-DTI utilizes multiple kernels (similarity measures) for drugs and targets and Laplacian regularization to boost the prediction performance. The performance of NMTF-DTI is evaluated via cross-validation and is compared with existing DTI prediction methods in terms of the area under the receiver operating characteristic (ROC) curve (AUC) and the area under the precision and recall curve (AUPR). We evaluate our method on four gold standard datasets, comparing to other state-of-the-art methods. Cross-validation and a separate, manually created dataset are used to set parameters. The results show that NMTF-DTI outperforms other competing methods. Moreover, the results of a case study also confirm the superiority of NMTF-DTI.
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Gharibvand LK, Jamali AA, Amiri F. Changes in NO2 and O3 levels due to the pandemic lockdown in the industrial cities of Tehran and Arak, Iran using Sentinel 5P images, Google Earth Engine (GEE) and statistical analysis. Stoch Environ Res Risk Assess 2023; 37:2023-2034. [PMID: 37091315 PMCID: PMC10073783 DOI: 10.1007/s00477-022-02362-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 11/23/2022] [Accepted: 12/07/2022] [Indexed: 05/03/2023]
Abstract
Air pollution has very damaging effects on human health. In recent years the Coronavirus disease (COVID-19) pandemic has created a worldwide economic disaster. Although the consequences of the COVID-19 lockdowns have had severe effects on economic and social conditions, these lockdowns also have also left beneficial effects on improving air quality and the environment. This research investigated the impact of the COVID-19 lockdown on NO2 and O3 pollutants changes in the industrial and polluted cities of Arak and Tehran in Iran. Based on this, the changes in NO2 and O3 levels during the 2020 lockdown and the same period in 2019 were investigated in these two cities. For this purpose, the Sentinel-5P data of these two pollutants were used during the lockdown period from November 19 to December 05, 2020, and at the same time before the pandemic from November 19 to December 05, 2019. For better results, the effect of climatic factors such as rain and wind in reducing pollution was removed. The obtained results indicate a decrease in NO2 and O3 levels by 3.5% and 6.8% respectively in Tehran and 20.97% and 5.67% in Arak during the lockdown of 2020 compared to the same time in 2019. This decrease can be caused by the reduction in transportation and socio-economic and industrial activities following the lockdown measures. This issue can be a solid point to take a step toward controlling and reducing pollution in non-epidemic conditions by implementing similar standards and policies in the future.
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Affiliation(s)
| | - Ali Akbar Jamali
- Department of GIS-RS and Watershed Management, Meybod Branch, Islamic Azad University, Meybod, Iran
| | - Fatemeh Amiri
- Department of Petroleum, Masjed-Soleiman Branch, Islamic Azad University, Masjed-Soleiman, Iran
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Abstract
Computational drug repositioning aims to identify potential applications of existing drugs for the treatment of diseases for which they were not designed. This approach can considerably accelerate the traditional drug discovery process by decreasing the required time and costs of drug development. Tensor decomposition enables us to integrate multiple drug- and disease-related data to boost the performance of prediction. In this study, a nonnegative tensor decomposition for drug repositioning, NTD-DR, is proposed. In order to capture the hidden information in drug-target, drug-disease, and target-disease networks, NTD-DR uses these pairwise associations to construct a three-dimensional tensor representing drug-target-disease triplet associations and integrates them with similarity information of drugs, targets, and disease to make a prediction. We compare NTD-DR with recent state-of-the-art methods in terms of the area under the receiver operating characteristic (ROC) curve (AUC) and the area under the precision and recall curve (AUPR) and find that our method outperforms competing methods. Moreover, case studies with five diseases also confirm the reliability of predictions made by NTD-DR. Our proposed method identifies more known associations among the top 50 predictions than other methods. In addition, novel associations identified by NTD-DR are validated by literature analyses.
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Affiliation(s)
- Ali Akbar Jamali
- Division of Biomedical Engineering, University of Saskatchewan, Saskatoon, SK, Canada
| | - Yuting Tan
- Division of Biomedical Engineering, University of Saskatchewan, Saskatoon, SK, Canada
- School of Mathematics and Statistics, Huazhong Normal University, Wuhan, China
| | - Anthony Kusalik
- Division of Biomedical Engineering, University of Saskatchewan, Saskatoon, SK, Canada
- Department of Computer Science, University of Saskatchewan, Saskatoon, SK, Canada
- * E-mail: (AK); (FXW)
| | - Fang-Xiang Wu
- Division of Biomedical Engineering, University of Saskatchewan, Saskatoon, SK, Canada
- Department of Computer Science, University of Saskatchewan, Saskatoon, SK, Canada
- Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, SK, Canada
- * E-mail: (AK); (FXW)
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Jamali AA, Ghorbani Kalkhajeh R, Randhir TO, He S. Modeling relationship between land surface temperature anomaly and environmental factors using GEE and Giovanni. J Environ Manage 2022; 302:113970. [PMID: 34710758 DOI: 10.1016/j.jenvman.2021.113970] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 09/19/2021] [Accepted: 10/17/2021] [Indexed: 06/13/2023]
Abstract
Land surface temperature (LST) and vegetation cover changes are two indicators of landscapes in a region. The relationship between LST anomalies, elevation, vegetation, and urban growth is significant to conservation. This study addresses this issue using night-time satellite imagery, kernel methods (points aggregation), and the trend analysis for a long-term period (2001-2017) in Iran. Variables for two seasons (summer and winter) in urban and natural land uses were derived using the Google Earth Engine (GEE) and NASA's Giovanni. Point data derived from raster maps were quantified using statistical kernel and trend analysis. As result, it was observed that LST rise in various elevations, seasons, and land uses. The LST was analyzed through kernels (point aggregation in scatter graphs), which shifted to the right. The LST anomaly in the daytime had the highest maximum value (>4 °C) and lowest minimum value (<-5 °C) in forests and mountains and metropolises with the highest population growth rate. Summer and winter seasons had positive trends in LST for forest and mountain land uses. All seasons had positive trends in EVI in the mountain, and desert land uses. This warming and increasing LST can increase vulnerability to drought, dust storms, floods, avalanches, and natural fires. The EVI is increasing over the years due to government projects in green spaces and urban parks. There is a need to protect urban and natural environments to prevent natural disasters and unplanned population growth.
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Affiliation(s)
- Ali Akbar Jamali
- Department of GIS-RS and Watershed Management, Maybod Branch, Islamic Azad University, Maybod, Yazd, Iran.
| | | | - Timothy O Randhir
- Department of Environmental Conservation, University of Massachusetts, Amherst, MA, 01003, USA.
| | - Songtang He
- Key Laboratory of Mountain Hazards and Earth Surface Processes, Chinese Academy of Sciences, Chengdu, 610041, China.
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He S, Wang D, Li Y, Zhao P, Lan H, Chen W, Jamali AA, Chen X. Social-ecological system resilience of debris flow alluvial fans in the Awang basin, China. J Environ Manage 2021; 286:112230. [PMID: 33636622 DOI: 10.1016/j.jenvman.2021.112230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 01/27/2021] [Accepted: 02/18/2021] [Indexed: 06/12/2023]
Abstract
Debris flow alluvial fans (DFAFs) are vulnerable, although they can be used as a natural resource. The relationships between different factors related to DFAF systems and between these factors and systems are important both for identifying the risks and opportunities presented by DFAFs and for tracking system status. In this regard, resilience may be used to characterize the status of a DFAF. This study aimed to explore the processes and mechanisms of interactions among the social, economic, and ecological factors related to DFAF with respect to resilience, and to discuss potential problems in a representative DFAF. Based on the site condition and characteristics of the Awang DFAF (China) in the period 1996-2017, we formed a comprehensive indicator evaluation framework by analyzing disturbance, function, and feedback. We also established a model for evaluating resilience by integrating the analytic hierarchy process (AHP) - an entropy evaluation method (EEM) and set pair analysis (SPA). The results showed that the system of the studied DFAF was dynamically stable. The domination of the ecological system was subsequently superseded by social and economic resilience. While disturbance had direct and immediate effects, coping ability was cumulative and characterized by hysteresis at a particular response time. Overall, resilience fluctuated within an acceptable range rather than linearly increasing or decreasing. This analysis illuminated the dynamic processes of DFAFs and contributed to the understanding and planning of system trade-offs and degraded-land utilization.
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Affiliation(s)
- Songtang He
- Key Laboratory of Mountain Hazards and Earth Surface Processes, Chinese Academy of Sciences, Chengdu, 610041, China; Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China; University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Daojie Wang
- Key Laboratory of Mountain Hazards and Earth Surface Processes, Chinese Academy of Sciences, Chengdu, 610041, China; Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China.
| | - Yong Li
- Key Laboratory of Mountain Hazards and Earth Surface Processes, Chinese Academy of Sciences, Chengdu, 610041, China; Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Peng Zhao
- Key Laboratory of Mountain Hazards and Earth Surface Processes, Chinese Academy of Sciences, Chengdu, 610041, China; Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China; University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Huijuan Lan
- Key Laboratory of Mountain Hazards and Earth Surface Processes, Chinese Academy of Sciences, Chengdu, 610041, China; Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China; University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Wenle Chen
- Key Laboratory of Mountain Hazards and Earth Surface Processes, Chinese Academy of Sciences, Chengdu, 610041, China; Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China; University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Ali Akbar Jamali
- Department of GIS-RS and Watershed Management, Maybod Branch, Islamic Azad University, Maybod, Iran
| | - Xiaoqing Chen
- Key Laboratory of Mountain Hazards and Earth Surface Processes, Chinese Academy of Sciences, Chengdu, 610041, China; Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China
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Jamali AA, Kusalik A, Wu FX. MDIPA: a microRNA-drug interaction prediction approach based on non-negative matrix factorization. Bioinformatics 2021; 36:5061-5067. [PMID: 33212495 DOI: 10.1093/bioinformatics/btaa577] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 05/27/2020] [Accepted: 06/11/2020] [Indexed: 02/02/2023] Open
Abstract
MOTIVATION Evidence has shown that microRNAs, one type of small biomolecule, regulate the expression level of genes and play an important role in the development or treatment of diseases. Drugs, as important chemical compounds, can interact with microRNAs and change their functions. The experimental identification of microRNA-drug interactions is time-consuming and expensive. Therefore, it is appealing to develop effective computational approaches for predicting microRNA-drug interactions. RESULTS In this study, a matrix factorization-based method, called the microRNA-drug interaction prediction approach (MDIPA), is proposed for predicting unknown interactions among microRNAs and drugs. Specifically, MDIPA utilizes experimentally validated interactions between drugs and microRNAs, drug similarity and microRNA similarity to predict undiscovered interactions. A path-based microRNA similarity matrix is constructed, while the structural information of drugs is used to establish a drug similarity matrix. To evaluate its performance, our MDIPA is compared with four state-of-the-art prediction methods with an independent dataset and cross-validation. The results of both evaluation methods confirm the superior performance of MDIPA over other methods. Finally, the results of molecular docking in a case study with breast cancer confirm the efficacy of our approach. In conclusion, MDIPA can be effective in predicting potential microRNA-drug interactions. AVAILABILITY AND IMPLEMENTATION All code and data are freely available from https://github.com/AliJam82/MDIPA. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Affiliation(s)
| | - Anthony Kusalik
- Division of Biomedical Engineering.,Department of Computer Science
| | - Fang-Xiang Wu
- Division of Biomedical Engineering.,Department of Computer Science.,Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, SK, Canada
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Ferdousi R, Jamali AA, Safdari R. Identification and ranking of important bio-elements in drug-drug interaction by Market Basket Analysis. ACTA ACUST UNITED AC 2019; 10:97-104. [PMID: 32363153 PMCID: PMC7186546 DOI: 10.34172/bi.2020.12] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 10/17/2019] [Accepted: 10/22/2019] [Indexed: 12/18/2022]
Abstract
Introduction: Drug-drug interactions (DDIs) are the main causes of the adverse drug reactions and the nature of the functional and molecular complexity of drugs behavior in the human body make DDIs hard to prevent and threat. With the aid of new technologies derived from mathematical and computational science, the DDI problems can be addressed with a minimum cost and effort. The Market Basket Analysis (MBA) is known as a powerful method for the identification of co-occurrence of matters for the discovery of patterns and the frequency of the elements involved. Methods: In this research, we used the MBA method to identify important bio-elements in the occurrence of DDIs. For this, we collected all known DDIs from DrugBank. Then, the obtained data were analyzed by MBA method. All drug-enzyme, drug-carrier, drug-transporter and drug-target associations were investigated. The extracted rules were evaluated in terms of the confidence and support to determine the importance of the extracted bio-elements. Results: The analyses of over 45000 known DDIs revealed over 300 important rules from 22 085 drug interactions that can be used in the identification of DDIs. Further, the cytochrome P450 (CYP) enzyme family was the most frequent shared bio-element. The extracted rules from MBA were applied over 2000000 unknown drug pairs (obtained from FDA approved drugs list), which resulted in the identification of over 200000 potential DDIs. Conclusion: The discovery of the underlying mechanisms behind the DDI phenomena can help predict and prevent the inadvertent occurrence of DDIs. Ranking of the extracted rules based on their association can be a supportive tool to predict the outcome of unknown DDIs.
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Affiliation(s)
- Reza Ferdousi
- Department of Health Information Technology, School of Management and Medical Informatics, Tabriz University of Medical Sciences, Tabriz, Iran.,Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Akbar Jamali
- Division of Biomedical Engineering, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Reza Safdari
- Department of Health Care Management, Tehran University of Medical Sciences, Tehran, Iran
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Jamali AA, Ferdousi R, Razzaghi S, Li J, Safdari R, Ebrahimie E. DrugMiner: comparative analysis of machine learning algorithms for prediction of potential druggable proteins. Drug Discov Today 2016; 21:718-24. [PMID: 26821132 DOI: 10.1016/j.drudis.2016.01.007] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Revised: 12/05/2015] [Accepted: 01/19/2016] [Indexed: 12/14/2022]
Abstract
Application of computational methods in drug discovery has received increased attention in recent years as a way to accelerate drug target prediction. Based on 443 sequence-derived protein features, we applied the most commonly used machine learning methods to predict whether a protein is druggable as well as to opt for superior algorithm in this task. In addition, feature selection procedures were used to provide the best performance of each classifier according to the optimum number of features. When run on all features, Neural Network was the best classifier, with 89.98% accuracy, based on a k-fold cross-validation test. Among all the algorithms applied, the optimum number of most-relevant features was 130, according to the Support Vector Machine-Feature Selection (SVM-FS) algorithm. This study resulted in the discovery of new drug target which potentially can be employed in cell signaling pathways, gene expression, and signal transduction. The DrugMiner web tool was developed based on the findings of this study to provide researchers with the ability to predict druggable proteins. DrugMiner is freely available at www.DrugMiner.org.
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Affiliation(s)
- Ali Akbar Jamali
- Research Center for Pharmaceutical Nanotechnology (RCPN), Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Ferdousi
- Department of Health Information Management, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeed Razzaghi
- Information Technology Center, The University of Zanjan, Zanjan, Iran
| | - Jiuyong Li
- School of Information Technology and Mathematical Sciences, Division of Information Technology, Engineering and the Environment, The University of South Australia, Adelaide, SA, Australia
| | - Reza Safdari
- Department of Health Information Management, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran.
| | - Esmaeil Ebrahimie
- School of Information Technology and Mathematical Sciences, Division of Information Technology, Engineering and the Environment, The University of South Australia, Adelaide, SA, Australia; Department of Genetics & Evolution, School of Biological Sciences, The University of Adelaide, Adelaide, SA, Australia; School of Biological Sciences, Faculty of Science and Engineering, Flinders University, Adelaide, SA, Australia.
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Jamali AA, Pourhassan-Moghaddam M, Dolatabadi JEN, Omidi Y. Nanomaterials on the road to microRNA detection with optical and electrochemical nanobiosensors. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2013.10.008] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Ezzati Nazhad Dolatabadi J, Panahi-Azar V, Barzegar A, Jamali AA, Kheirdoosh F, Kashanian S, Omidi Y. Spectroscopic and molecular modeling studies of human serum albumin interaction with propyl gallate. RSC Adv 2014. [DOI: 10.1039/c4ra11103f] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
For the first time, PG interaction with HSA using fluorescence quenching method, circular dichroism spectroscopy and molecular modeling was investigated.
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Affiliation(s)
- Jafar Ezzati Nazhad Dolatabadi
- Research Center for Pharmaceutical Nanotechnology
- Faculty of Pharmacy
- Tabriz University of Medical Sciences
- Tabriz, Iran
- Student Research Committee
| | - Vahid Panahi-Azar
- Drug Applied Research Center
- Tabriz University of Medical Sciences
- Tabriz, Iran
| | - Abolfazl Barzegar
- Research Institute for Fundamental Sciences (RIFS)
- University of Tabriz
- Tabriz, Iran
| | - Ali Akbar Jamali
- Department of Bioinformatics
- Research Institute of Modern Biological Techniques (RIMBT)
- University of Zanjan
- Zanjan, Iran
| | - Fahimeh Kheirdoosh
- Faculty of Chemistry & Nanoscience and Nanotechnology Research Center (NNRC)
- Razi University
- Kermanshah, Iran
| | - Soheila Kashanian
- Faculty of Chemistry & Nanoscience and Nanotechnology Research Center (NNRC)
- Razi University
- Kermanshah, Iran
| | - Yadollah Omidi
- Research Center for Pharmaceutical Nanotechnology
- Faculty of Pharmacy
- Tabriz University of Medical Sciences
- Tabriz, Iran
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Jamali AA, Tavakoli A, Ezzati Nazhad Dolatabadi J. Analytical overview of DNA interaction with Morin and its metal complexes. Eur Food Res Technol 2012. [DOI: 10.1007/s00217-012-1778-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Jamali AA, Akbari F, Ghorakhlu MM, de la Guardia M, Yari Khosroushahi A. Applications of diatoms as potential microalgae in nanobiotechnology. Bioimpacts 2012; 2:83-9. [PMID: 23678445 DOI: 10.5681/bi.2012.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/04/2012] [Revised: 04/30/2012] [Accepted: 05/02/2012] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Diatoms are single cell eukaryotic microalgae, which present in nearly every water habitat make them ideal tools for a wide range of applications such as oil explora-tion, forensic examination, environmental indication, biosilica pattern generation, toxicity testing and eutrophication of aqueous ecosystems. METHODS Essential information on diatoms were reviewed and discussed towards impacts of diatoms on biosynthesis and bioremediation. RESULTS In this review, we present the recent progress in this century on the application of diatoms in waste degradation, synthesis of biomaterial, biomineraliza-tion, toxicity and toxic effects of mineral elements evaluations. CONCLUSION Diatoms can be considered as metal toxicity bioindicators and they can be applied for biomineralization, synthesis of biomaterials, and degradation of wastes.
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Affiliation(s)
- Ali Akbar Jamali
- Department of Bioinformatics, Research Institute of Physiology and Biotechnology (RIPB), Zanjan University, Zanjan, Iran
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Dolatabadi JEN, Mashinchian O, Ayoubi B, Jamali AA, Mobed A, Losic D, Omidi Y, de la Guardia M. Optical and electrochemical DNA nanobiosensors. Trends Analyt Chem 2011. [DOI: 10.1016/j.trac.2010.11.010] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Dolatabadi JEN, Jamali AA, Hasanzadeh M, Omidi Y. Quercetin Delivery into Cancer Cells with Single Walled Carbon Nanotubes. ACTA ACUST UNITED AC 2011. [DOI: 10.7763/ijbbb.2011.v1.4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Abstract
Bone surface strains were measured in cadaver femora during loading prior to and after resurfacing of the hip and total hip replacement using an uncemented, tapered femoral component. In vitro loading simulated the single-leg stance phase during walking. Strains were measured on the medial and the lateral sides of the proximal aspect and the mid-diaphysis of the femur. Bone surface strains following femoral resurfacing were similar to those in the native femur, except for proximal shear strains, which were significantly less than those in the native femur. Proximomedial strains following total hip replacement were significantly less than those in the native and the resurfaced femur. These results are consistent with previous clinical evidence of bone loss after total hip replacement, and provide support for claims of bone preservation after resurfacing arthroplasty of the hip.
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Affiliation(s)
- C R Deuel
- Department of Orthopaedic Surgery, Univesity of California Davis Medical Center, Sacramento, California 95817, USA
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Abstract
Tenotomy is a commonly encountered clinical entity, whether traumatic or iatrogenic. This article reviews the response of skeletal muscle to tenotomy. The changes are subdivided into molecular, architectural, and functional categories. Architectural disruption of the muscle includes myofiber disorganization, central core necrosis, Z-line streaming, fibrosis of fibers and Golgi tendon organs, changes in sarcomere number, and alterations in the number of membrane particles. Molecular changes include transient changes in myosin heavy chain composition and expression of neural cell adhesion molecule (NCAM). Functionally, tenotomized muscle produces decreased maximum tetanic and twitch tension. Alterations in normal skeletal muscle structure and function are clinically applicable to the understanding of pathological states that follow tendon rupture and iatrogenic tenotomy.
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Affiliation(s)
- A A Jamali
- Department of Orthopedics, University of California, San Diego 92093-9151, USA
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