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Rabbani D, Dehghani R, Akbari H, Rahmani H, Ahmadi E, Bagheri A, Allahi S. Study on diazinon toxicity reduction by electro-Fenton process: A bioassay using daphnia magna. Heliyon 2024; 10:e25928. [PMID: 38380001 PMCID: PMC10877300 DOI: 10.1016/j.heliyon.2024.e25928] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 01/26/2024] [Accepted: 02/05/2024] [Indexed: 02/22/2024] Open
Abstract
The realm of diazinon reduction from polluted water has witnessed a surge in the significance of advanced oxidation processes (AOPs) in recent times. However, there is a dearth of research focusing on the mitigation of its toxicity through AOPs. Thus, the primary objective of this study was to evaluate the effectiveness of the Electro-Fenton process (EFP) in the eradication and detoxification of diazinon in aqueous solutions. Synthetic wastewater samples with concentrations of 2, 2.5 and 3 mg/L were prepared. A total of 27 samples were determined using Box Behnken Design. Reaction time, pH and iron to hydrogen peroxide ratio (Fe2+/H2O2) were examined as operational parameters under a constant current of 5.4 amps. The quantification of diazinon concentration was performed using High-Performance Liquid Chromatography (HPLC). To evaluate the detoxification of diazinon, the Daphnia magna bioassay was employed as a methodology in this study. According to the results, the EFP could reduce the diazinon to zero and the LC50 values are increased by applying the process. The LC50 values for diazinon were determined using the Daphnia magna bioassay, considering initial concentrations of 2, 2.5, and 3 mg/L at a pH of 5, a reaction time of 15 min, and an iron to hydrogen peroxide molar ratio of 2. The recorded LC50 values were 3.039, 3.076, and 3.106, respectively, indicating the lowest frequency of cumulative death in Daphnia magna. In this case, after 96 h, only 3 cases (30%) of Daphnia magna death were observed. However, for all the mentioned concentrations of diazinon, after 96 h of exposure to samples without applying the Daphnia Magna death process, it was observed between 60 and 100%. Reducing the diazinon concentration and increasing the 96-h LC50 showed that the EFP can reduce the toxicity of diazinon on Daphnia Magna at the same time. Therefore, EFP can be considered a superior method with low ecotoxicity.
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Affiliation(s)
- Davarkhah Rabbani
- Department of Environmental Health Engineering, Faculty of Health, Kashan University of Medical Sciences, Kashan, Iran
- Social Determinants of Health (SDH) Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Rouhullah Dehghani
- Department of Environmental Health Engineering, Faculty of Health, Kashan University of Medical Sciences, Kashan, Iran
- Social Determinants of Health (SDH) Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Hossein Akbari
- Social Determinants of Health (SDH) Research Center, Kashan University of Medical Sciences, Kashan, Iran
- Department of Public Health and Biostatics, Kashan University of Medical Sciences, Kashan, Iran
| | - Hasan Rahmani
- Department of Environmental Health Engineering, Faculty of Health, Kashan University of Medical Sciences, Kashan, Iran
| | - Ehsan Ahmadi
- Department of Environmental Health Engineering, Faculty of Health, Kashan University of Medical Sciences, Kashan, Iran
| | - Amin Bagheri
- Department of Health, Safety and Environmental Management, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saeid Allahi
- Department of Environmental Health Engineering, Faculty of Health, Kashan University of Medical Sciences, Kashan, Iran
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Roghani H, Borhani E, Ahmadi E, Jafarian HR. Study of changes in the aging process, microstructure, and mechanical properties of AA2024-AA1050 nanocomposites created by the accumulative roll bonding process, with the addition of 0.005 vol.% of alumina nanoparticles. Discov Nano 2024; 19:1. [PMID: 38165450 PMCID: PMC10761635 DOI: 10.1186/s11671-023-03917-2] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 10/26/2023] [Indexed: 01/03/2024]
Abstract
We created AA2024-AA1050 and AA2024-AA1050/0.005 vol.% Al2O3 nanocomposites by six accumulative roll bonding (ARB) process cycles. We used AA2024 and AA1050 sheets with a thickness of 0.7 mm and plate-shaped alumina nanoparticles to create a composite. The two AA1050 and one AA2024 sheets (among the two AA1050 sheets) were ARB-ed up to six cycles with and without adding alumina nanoparticles. Also, a sample of the AA1050 without composite making was ARB-ed up to six cycles. We aged some composites after the ARB process in the furnace at 110, 150, and 190 °C. This project performed SEM, TEM, and EDS-MAP analyses, tensile strength, microhardness, and Pin-on-Disc tests to study the ARB-ed sheets. The results of the tensile tests showed that the tensile strength of AA2024-AA1050 created by the six cycles ARB process was two times more than primary AA1050. Also, the wear resistance of this composite was 74% more than six cycles ARB-ed the AA1050. Using 0.005 vol.% alumina nanoparticles in AA2024-AA1050 composite improved its wear resistance by 30%. In the following, the aging process caused an improvement in tensile strength and total elongation of AA2024-AA1050/Al2O3 nanocomposites.
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Affiliation(s)
- Hamed Roghani
- Nanomaterials Department, Faculty of New Sciences and Technologies, Semnan University, Semnan, Iran.
- School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran.
| | - Ehsan Borhani
- Nanomaterials Department, Faculty of New Sciences and Technologies, Semnan University, Semnan, Iran.
| | - Ehsan Ahmadi
- School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran
| | - Hamid Reza Jafarian
- School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran
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Akbari B, Ahmadi E, Zabihi MR, Zamir MR, Shaker MS, Noorbakhsh F. SARS-CoV-2 helicase might interfere with cellular nonsense-mediated RNA decay: insights from a bioinformatics study. BMC Genom Data 2023; 24:68. [PMID: 37980504 PMCID: PMC10657555 DOI: 10.1186/s12863-023-01173-y] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 11/10/2023] [Indexed: 11/20/2023] Open
Abstract
BACKGROUND Viruses employ diverse strategies to interfere with host defense mechanisms, including the production of proteins that mimic or resemble host proteins. This study aimed to analyze the similarities between SARS-CoV-2 and human proteins, investigate their impact on virus-host interactions, and elucidate underlying mechanisms. RESULTS Comparing the proteins of SARS-CoV-2 with human and mammalian proteins revealed sequence and structural similarities between viral helicase with human UPF1. The latter is a protein that is involved in nonsense-mediated RNA decay (NMD), an mRNA surveillance pathway which also acts as a cellular defense mechanism against viruses. Protein sequence similarities were also observed between viral nsp3 and human Poly ADP-ribose polymerase (PARP) family of proteins. Gene set enrichment analysis on transcriptomic data derived from SARS-CoV-2 positive samples illustrated the enrichment of genes belonging to the NMD pathway compared with control samples. Moreover, comparing transcriptomic data from SARS-CoV-2-infected samples with transcriptomic data derived from UPF1 knockdown cells demonstrated a significant overlap between datasets. CONCLUSIONS These findings suggest that helicase/UPF1 sequence and structural similarity might have the ability to interfere with the NMD pathway with pathogenic and immunological implications.
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Affiliation(s)
- Behnia Akbari
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ehsan Ahmadi
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Zabihi
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mina Roshan Zamir
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mina Sadeghi Shaker
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Farshid Noorbakhsh
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
- Shefa Neuroscience Research Center, Khatam Alanbia Hospital, Tehran, Iran.
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Asadbeigi S, Ahmadi E, Goodarzi M, Sagharichian A. Analyzing and simulating heat transfer and designing a shell and tube heat exchanger for the pasteurization process of tomato paste: A CFD study. Heliyon 2023; 9:e21593. [PMID: 38027807 PMCID: PMC10661150 DOI: 10.1016/j.heliyon.2023.e21593] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 10/21/2023] [Accepted: 10/24/2023] [Indexed: 12/01/2023] Open
Abstract
Pasteurization is a vital process to destroy harmful enzymes. This process is very critical to obtain quality tomato paste. In this study, Computational Fluid Dynamics (CFD) has been used to design a shell and tube heat exchanger on an industrial scale and to simulate heat transfer in order to visualize this process and present it to the industry. In this research, a three-dimensional CFD model was simulated using ANSYS FLUENT commercial software. Also, using the Herschel-Bulkley model, the behavior of viscosity in the pasteurization process of tomato paste has been explained. In this stage of the production line, the tomato paste enters a shell and tube heat exchanger at 65 °C and reaches 80 °C at the outlet. Compared with the experimental data, the output temperature of tomato paste predicted by CFD simulation reached 79 °C. In addition, thermophysical properties of tomato paste were measured, and these exact values were used for simulation. Also, the evaluation of this heat exchanger with three hot water inlet mass flow rates has been done in order to provide the results to the factory to avoid spending more energy. And the simulation results showed that the output temperature of tomato paste at three different mass flow rates did not change less than the mass flow rates measured in the factory, and also the output visualizations from this research can be suitable for presenting to the industry and benefiting from them.
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Affiliation(s)
- Sh. Asadbeigi
- Department of Biosystems Engineering, Bu-Ali Sina University, Hamadan, Iran
| | - E. Ahmadi
- Department of Biosystems Engineering, Bu-Ali Sina University, Hamadan, Iran
| | - M. Goodarzi
- Department of Mechanical Engineering, Bu-Ali Sina University, Hamadan, Iran
| | - A. Sagharichian
- Department of Biosystems Engineering, Tarbiat Modares University, Tehran, Iran
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Di Pastena F, Pond G, Ahmadi E, Tsakiridis EE, Steinberg GR, Tsakiridis T. Circulating Growth Differentiation Factor 15 as a Biomarker in Patients with Unresected Locally Advanced Non-Small Cell Lung Cancer Treated with Chemo-Radiotherapy with or without Metformin. Int J Radiat Oncol Biol Phys 2023; 117:e14-e15. [PMID: 37784711 DOI: 10.1016/j.ijrobp.2023.06.678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Growth differentiation factor 15 (GDF15) is a member of the TGFβ family suggested to have prognostic value in cancer. Plasma GDF15 levels are elevated in humans during cellular stress, chronic diseases, and cancer and in response to cytotoxic (chemotherapy and radiation) or metabolic (metformin) therapies. Currently, the effect of combined metformin and cytotoxic treatment on circulating GDF15 is not known, and it is unclear whether GDF15 can serve as a biomarker in patients receiving such therapy. To examine this question, we analyzed circulating GDF15 levels in stage IIIA or IIIB NSCLC patients that participated in the randomized phase II clinical trial OCOG-ALMERA (NCT02115464). MATERIALS/METHODS In OCOG-ALMERA patients were randomized to treatment with concurrent platinum-based chemotherapy and chest radiotherapy (60-66 Gy), with or without consolidation chemotherapy (CRT) or the same treatment plus metformin (2000mg/d). Dosimetric parameters and survival outcomes were collected by the trial. EDTA Plasma was collected from patients at baseline, 2 weeks into CRT treatment, at completion of CRT and 6 months after treatment initiation and assayed for GDF15 using an ELISA method. Statistical analyses were conducted to explore potential associations between plasma GDF15 with survival and dosimetric parameters. RESULTS Fifteen patients from the metformin arm and 18 from the control arms provided EDTA plasma for this analysis. Average baseline GDF15 levels for all participants were elevated compared to those reported for healthy individuals. Baseline plasma GDF15 was statistically prognostic for RFS and OS (hazard ratio = 1.19, 95% CI = 1.06 to 1.34, p = 0.005). GDF15 levels increased during CRT treatment reaching the highest value at the end of cytotoxic therapy. Addition of metformin to CRT treatment was associated with further increase in circulating GDF15 (p<0.001). Plasma GDF15 levels at 2 weeks of CRT were positively correlated with size of the radiotherapy clinical target volume and volumes of esophagus and heart receiving high dose radiotherapy. CONCLUSION This work suggests that GDF15 may be a promising prognostic marker to predict response to standard chemoradiation therapy in NSCLC. Future studies should aim to validate these results in larger datasets and examine whether GDF15 may have value as early biomarker of radiation toxicity in lung cancer patients.
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Affiliation(s)
| | - G Pond
- McMaster University, Hamilton, ON, Canada
| | - E Ahmadi
- McMaster University, Hamilton, ON, Canada
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Saeedi R, Ahmadi E, Hassanvand MS, Mohasel MA, Yousefzadeh S, Safari M. Implemented indoor airborne transmission mitigation strategies during COVID-19: a systematic review. J Environ Health Sci Eng 2023; 21:11-20. [PMID: 37152068 PMCID: PMC9968468 DOI: 10.1007/s40201-023-00847-0] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 01/02/2023] [Indexed: 05/09/2023]
Abstract
The COVID-19 pandemic has inflicted major economic and health burdens across the world. On the other hand, the potential airborne transmission of SARS-COV-2 via air can deeply undermine the effectiveness of countermeasures against spreading the disease. Therefore, there is an intense focus to look for ways to mitigate the COVID-19 spread within various indoor settings. This work systematically reviewed articles regarding airborne transmission of SARS-COV2 in various indoor settings since the onset of the pandemic. The systematic search was performed in Scopus, Web of Science, and PubMed databases and has returned 19 original articles carefully screened with regard to inclusion and exclusion criteria. The results showed that the facilities, such as dormitories and classrooms, received the most attention followed by office buildings, healthcare facilities, residential buildings, and other potential enclosed spaces such as a metro wagon. Besides, the majority of the studies were conducted experimentally while other studies were done using computer simulations. United States (n = 5), Spain (n = 4) and China (n = 3) were the top three countries based on the number of performed research. Ventilation rate was the most influential parameter in controlling the infection spread. CO2 was the primary reference for viral spread in the buildings. The use of natural ventilation or a combination of mechanical and natural ventilations was found to be highly effective in the studies. The current work helps in furthering research on effective interventions to improve indoor air quality and control the spread of COVID-19 and other respiratory diseases. Supplementary information The online version contains supplementary material available at 10.1007/s40201-023-00847-0.
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Affiliation(s)
- Reza Saeedi
- Workplace Health Promotion Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Health, Safety and Environment (HSE), School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ehsan Ahmadi
- Department of Environmental Health Engineering, Faculty of Health, Kashan University of Medical Sciences, Kashan, Iran
| | - Mohammad Sadegh Hassanvand
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Centre for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | - Mehrnoosh Abtahi Mohasel
- Workplace Health Promotion Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Samira Yousefzadeh
- Department of Environmental Health Engineering, Faculty of Health, Kashan University of Medical Sciences, Kashan, Iran
| | - Mohammad Safari
- Workplace Health Promotion Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Musapoor S, Davoodian N, Kadivar A, Ahmadi E, Nazari H, Mehrban H. Gamma-oryzanol dose optimization in maturation or culture media for in vitro ovine oocyte and embryo development. Iran J Vet Res 2023; 24:136-142. [PMID: 37790113 PMCID: PMC10542876 DOI: 10.22099/ijvr.2023.45223.6645] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/24/2023] [Accepted: 02/14/2023] [Indexed: 10/05/2023]
Abstract
Abstract. Background The efficiency of ovine in vitro embryo production remains low yet. Aims The present study evaluated the effect of different concentrations of gamma (γ)-oryzanol in maturation or culture media on in vitro ovine oocytes and embryo developments. Methods Morphologically normal COCs were aspirated from ovine ovaries, subjected to maturation media supplemented with 0, 2.5, 5, 10, 20, 50, and 100 μM γ-oryzanol, then processed for conventional in vitro fertilization and culture to assess their potential to cleave and develop to blastocyst. Another group of COCs was matured and fertilized. Presumptive zygotes were subjected to culture in drops of media supplemented with 0, 2.5, 10, 20, and 50 μM γ-oryzanol, and the developments of embryos were assessed under 7% and 20% O2 levels. A control group of no supplementation was included in each experiment. Results The expansion of cumulus cover and survival rate tended to decrease with concentrations of 20, 50, and 100 μM in maturation media, suggesting an overdose effect. The cleavage and total blastocyst rates were significantly higher for oocytes matured at 5 μM γ-oryzanol. The presumptive zygotes cultured in supplemented media showed significantly higher cleavage and total blastocyst rates with concentrations of 5 and 10 μM γ-oryzanol (P<0.04) in both 7% and 20% O2 levels. Conclusion These results represent the first study showing a significant positive effect of the γ-oryzanol supplement on in vitro ovine oocyte and embryo development, at optimal concentrations of 5 μM in maturation, and 5 and 10 μM in embryo culture media.
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Affiliation(s)
- S. Musapoor
- Ph.D. Student in Biotechnology of Animal Reproduction, Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran
| | - N. Davoodian
- Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran
| | - A. Kadivar
- Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahrekord University, Shahrekord, Iran
| | - E. Ahmadi
- Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran
| | - H. Nazari
- Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran
| | - H. Mehrban
- Department of Animal Science, Faculty of Agriculture, Shahrekord University, Shahrekord, Iran, and Animal Science Research Institute of Iran, Agriculture Research, Education, and Extension Organization (AREEO), Karaj, Iran
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Arfaeinia H, Masjedi MR, Jafari AJ, Ahmadi E. Urinary level of heavy metals in people working in smoking cafés. Environ Res 2022; 207:112110. [PMID: 34614394 DOI: 10.1016/j.envres.2021.112110] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 08/06/2021] [Revised: 09/12/2021] [Accepted: 09/20/2021] [Indexed: 06/13/2023]
Abstract
Previous researches have reported significant levels of heavy metals in indoor air of smoking cafés. The current research aimed to evaluate the potential exposure of smoking cafés workers to heavy metals through quantifying amounts of these pollutants in urine samples. To this end, 35 waterpipe/cigarette cafés workers were selected as the exposed population, 35 employees from non-smoking cafe' as the control group 1 (CG1) and 25 cases of the normal citizens as the control group 2 (CG2); and their urine samples were taken. Samples were then prepared by acid digestion approach and measured by the ICP in order to determine amount of heavy metals in them. The findings of the current work show the significant difference among urinary levels of metals in the exposed and both CG1 and CG2 (P value < 0.05). Furthermore, urinary metal levels in samples collected from smoking café workers after the exposure were considerably higher than those were collected before the exposure (P-value <0.05). According to the findings, "tobacco type" could be considered as a leading factor for heavy metal exposure in studied smokers. Additionally, a positive and significant association was found between urinary metals and urinary levels of 8-OHdG (a markers of DNA degradation through oxidative stress). Therefore, workers in waterpipe/cigarette café can be classified as high risk people in terms of DNA oxidative damage.
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Affiliation(s)
- Hossein Arfaeinia
- Department of Environmental Health Engineering, Faculty of Health and Nutrition, Bushehr University of Medical Sciences, Bushehr, Iran.
| | - Mohmmad Reza Masjedi
- Professor of Pulmonary Medicine, Tobacco Control Research Center (TCRC), Iranian Anti-Tobacco Association, Tehran, Iran.
| | - Ahmad Jonidi Jafari
- Department of Environmental Health Engineering, Faculty of Health, Iran University of Medical Sciences, Tehran, Iran
| | - Ehsan Ahmadi
- Department of Environmental Health Engineering, School of Public Health, Kashan University of Medical Sciences, Kashan, Iran
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Kiani A, Sharafi K, Omer AK, Matin BK, Davoodi R, Mansouri B, Sharafi H, Soleimani H, Massahi T, Ahmadi E. Accumulation and human health risk assessment of nitrate in vegetables irrigated with different irrigation water sources- transfer evaluation of nitrate from soil to vegetables. Environ Res 2022; 205:112527. [PMID: 34890596 DOI: 10.1016/j.envres.2021.112527] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [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: 09/01/2021] [Revised: 11/17/2021] [Accepted: 12/04/2021] [Indexed: 05/08/2023]
Abstract
The present study aimed to investigate the rate of accumulation, human health risk assessment, and nitrate-related transfer factor in vegetables irrigated with different sources, including treated wastewater effluent (TWE) of Kermanshah wastewater treatment plant, Gharasoo river water (RW) of Kermanshah, and well water with chemical fertilizer (WWF). For this purpose, three different types of vegetables, including basil, coriander, and radish, was cultivated, and each of them was irrigated by the three irrigation sources mentioned above. Finally, the amount of nitrate in different sources of irrigation, soil (before growing vegetables and after harvesting vegetables), and the mentioned vegetables was measured. Based on the study results, it can be concluded that the water of the Gharasoo River (RW), compared to the other two irrigation sources, causes more nitrate accumulation in the soil and vegetables grown in it. The highest transmission factor was related to basil vegetables irrigated with WWF. The results showed that the average daily intake of nitrate through the consumption of vegetables grown in Kermanshah with any irrigation water is less than the allowable amount, so the consumption of such vegetables is not dangerous to consumers' health. Therefore, it is suggested that the best irrigation source for vegetable cultivation in Kermanshah is TWE, provided that all of its physical, chemical and microbial parameters meet the standards for reuse in agriculture irrigation. Thus, the use of treated wastewater reduces the need for farmers to use chemical and organic fertilizers and cost-effectiveness, high frequency, and high availability.
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Affiliation(s)
- Amir Kiani
- Regenerative Medicine Research Center (RMRC), Kermanshah University of Medical Sciences, Kermanshah, Iran; Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Kiomars Sharafi
- Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Abdullah Khalid Omer
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - Behzad Karami Matin
- Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Reza Davoodi
- Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Borhan Mansouri
- Substance Abuse Prevention Research Center, Research Institute for Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Houshmand Sharafi
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - Hamed Soleimani
- Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Tooraj Massahi
- Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Ehsan Ahmadi
- Department of Environmental Health Engineering, Public Health College, Kashan University of Medical Sciences, Kashan, Iran.
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Ahmadi E, Bagherpour Z, Zarei E, Omidkhoda A. Pathological effects of SARS-CoV-2 on hematological and immunological cells: Alterations in count, morphology, and function. Pathol Res Pract 2022; 231:153782. [PMID: 35121363 PMCID: PMC8800420 DOI: 10.1016/j.prp.2022.153782] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 01/22/2022] [Accepted: 01/25/2022] [Indexed: 01/08/2023]
Abstract
The novel Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2), the causative agent of COVID-19 outbreak, spread rapidly and infected more than 140 million people with more than three million victims worldwide. The SARS-CoV-2 causes destructive changes in the immunological and hematological system of the host. These alterations appear to play a critical role in disease pathology and the emerging of clinical manifestations. In this review, we aimed to discuss the effect of COVID-19 on the count, function and morphology of immune and blood cells and the role of these changes in the pathophysiology of the disease. Knowledge of these changes may help with better management and treatment of COVID-19 patients.
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Affiliation(s)
- Ehsan Ahmadi
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Zahra Bagherpour
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran.
| | - Elmira Zarei
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran.
| | - Azadeh Omidkhoda
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran.
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Bakhshzadmahmoudi M, Jamali S, Ahmadi E. Wettability modification of polystyrene surface by cold atmospheric pressure plasma jet. Colloid Polym Sci 2022. [DOI: 10.1007/s00396-021-04928-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Zar A, Ahmadi E, Amani D, Ramsbottom R. Acute effect of two exercise intensity programs on interleukin-6, interleukin-1 beta and tumour necrosis factor-α in female futsalists. Comparative Exercise Physiology 2022. [DOI: 10.3920/cep210007] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Duration, intensity, and type of exercise can affect serum cytokine levels and change inflammatory indices. The present study aimed to examine the acute effect of two different exercise intensity programs on levels of circulating interleukin (IL)-6, IL-1β and tumour necrosis factor-α (TNF-α) in athletes. Eleven female futsal players aged 20.6±1.2 years completed this cross-over study. Participants performed, either a MI (moderate intensity: 60-65%) or a HI (high intensity: 75-80% heart rate reserve) exercise program. The study was performed on different days separated by a 1-week washout period. Each session consisted of 30 min running, either MI or HI. Blood samples were taken before (Pre) and immediately after (Post) each exercise session from an antecubital vein by venous puncture in a seated position. A Student’s t-test (P<0.05) was used to examine any difference between Pre and Post values. The results showed that IL-6 (P=0.22), IL-1β (P=0.90) and TNF-α (P=0.63) serum concentrations were not significantly different after moderate-intensity exercise. Similarly, high-intensity exercise did not significantly change serum concentrations of TNF-α (P=0.63), and IL-1β (P=0.18). However, HI caused a significant increase in IL-6 (P=0.04). A significant correlation was observed only between IL-1β and IL-6 (r=-0.761, P=0.01) after MI exercise. Based on the findings of the present study, the intensity of exercise can affect some cytokines, such as IL-6 in female futsal players.
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Affiliation(s)
- A. Zar
- Department of Sport Science, School of Literature and Humanities, Persian Gulf University, Boushehr 7516913817, Iran
| | - E. Ahmadi
- Department of Immunology, Medical School, International Branch, Shahid Beheshti University of Medical Sciences, Velenjak St., Shahid Chamran Highway, Tehran, Iran
| | - D. Amani
- Department of Immunology, Medical School, International Branch, Shahid Beheshti University of Medical Sciences, Velenjak St., Shahid Chamran Highway, Tehran, Iran
| | - R. Ramsbottom
- Department of Sport, Health Sciences and Social Work, Oxford Brookes University, Headington Campus, Oxford OX3 0BP, United Kingdom
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Ahmadi E, Zabihi MR, Hosseinzadeh R, Mohamed Khosroshahi L, Noorbakhsh F. SARS-CoV-2 spike protein displays sequence similarities with paramyxovirus surface proteins; a bioinformatics study. PLoS One 2021; 16:e0260360. [PMID: 34855795 PMCID: PMC8639087 DOI: 10.1371/journal.pone.0260360] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 11/09/2021] [Indexed: 12/28/2022] Open
Abstract
Recent emergence of SARS-CoV-2 and associated COVID-19 pandemic have posed a great challenge for the scientific community. In this study, we performed bioinformatic analyses on SARS-CoV-2 protein sequences, trying to unravel potential molecular similarities between this newly emerged pathogen with non-coronavirus ssRNA viruses. Comparing the proteins of SARS-CoV-2 with non-coronavirus positive and negative strand ssRNA viruses revealed multiple sequence similarities between SARS-CoV-2 and non-coronaviruses, including similarities between RNA-dependent RNA-polymerases and helicases (two highly-conserved proteins). We also observed similarities between SARS-CoV-2 surface (i.e. spike) protein with paramyxovirus fusion proteins. This similarity was restricted to a segment of spike protein S2 subunit which is involved in cell fusion. We next analyzed spike proteins from SARS-CoV-2 “variants of concern” (VOCs) and “variants of interests” (VOIs) and found that some of these variants show considerably higher spike-fusion similarity with paramyxoviruses. The ‘spike-fusion’ similarity was also observed for some pathogenic coronaviruses other than SARS-CoV-2. Epitope analysis using experimentally verified data deposited in Immune Epitope Database (IEDB) revealed that several B cell epitopes as well as T cell and MHC binding epitopes map within the spike-fusion similarity region. These data indicate that there might be a degree of convergent evolution between SARS-CoV-2 and paramyxovirus surface proteins which could be of pathogenic and immunological importance.
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Affiliation(s)
- Ehsan Ahmadi
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Zabihi
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ramin Hosseinzadeh
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Farshid Noorbakhsh
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Shefa Neuroscience Research Center, Khatam Alanbia Hospital, Tehran, Iran
- * E-mail:
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14
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Ghiasi T, Ahmadi S, Ahmadi E, Talei Bavil Olyai MR, Khodadadi Z. The index of ideality of correlation: QSAR studies of hepatitis C virus NS3/4A protease inhibitors using SMILES descriptors. SAR QSAR Environ Res 2021; 32:495-520. [PMID: 34074200 DOI: 10.1080/1062936x.2021.1925344] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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: 04/07/2021] [Accepted: 04/29/2021] [Indexed: 06/12/2023]
Abstract
Robust and reliable QSAR models were developed to predict half-maximal inhibitory concentration (IC50) values of hepatitis C virus NS3/4A protease inhibitors from the Monte Carlo technique. 524 HCV NS3/4A protease inhibitors were extracted from the scientific literature to create a reasonably large set. The models were developed using CORAL software by using two target functions namely target function 1 (TF1) without applying the index of ideality of correlation (IIC) and target function 2 (TF2) that uses IIC. The constructed models based on TF2 were statistically more significant and robust than the models based on TF1. The determination coefficients (r2) of training and test sets were 0.86 and 0.88 for the best split based on TF2. The promoters of the increase/decrease of activity were also extracted and interpreted in detail. The model interpretation results explain the role of different structural attributes in predicting the pIC50 values of hepatitis C virus NS3/4A protease inhibitors. Based on the mechanistic model interpretation results, eight new compounds were designed and their pIC50 values were predicted based on the average prediction of ten models.
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Affiliation(s)
- T Ghiasi
- Department of Chemistry, Faculty of Science, Islamic Azad University, South Tehran Branch, Tehran, Iran
| | - S Ahmadi
- Department of Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - E Ahmadi
- Department of Chemistry, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
| | - M R Talei Bavil Olyai
- Department of Chemistry, Faculty of Science, Islamic Azad University, South Tehran Branch, Tehran, Iran
| | - Z Khodadadi
- Department of Chemistry, Faculty of Science, Islamic Azad University, South Tehran Branch, Tehran, Iran
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15
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Amirrajab N, Sadeghi-Nejad B, Yusef Naanaie S, Tehrani S, Yalaly Y, Ahmadi E. In Vitro Anti-Candidial Activity of Some Iranian Medicinal Plants Against Candida Species. Int J Enteric Pathog 2021. [DOI: 10.34172/ijep.2021.11] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background: Candida albicans is an organism most often associated with serious fungal infection, which has recently shown an increased resistance to commercial antifungal agents. As a result, using medicinal plants as an alternative method to address health problems has received a particular attention in developing countries. Objective: This study aimed to examine the anti-Candidial potential of the extracts from Zataria multiflora Boiss (ZMB), Stachys acerosa Boiss (SAB), Prangos ferulacea (L.) Lindl (PFL), Tanacetum parthenium L. (TAPL), Teucrium polium L. (TEPL), and Cinnamomum zeylanicum L. (CZL) against three strains of Candida, including C. albicans, C. glabrata, and C. tropicalis. Materials and Methods: To this end, several tests were performed to determine the minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) against Candida species, using the agar well diffusion method (AWDM). Results: According to our study results, the hydroethanolic extracts of six medicinal plants exhibited anti-Candidial activities. The extracts of ZMB, SAB, and CZL demonstrated strong anti-Candidial activities, while the hydroethanolic extracts of PFL, TAPL, and TEPL revealed moderate anti-Candidial activities at any of the tested concentrations. The highest inhibitory activity (ZOI: 38 mm) was recorded for the effect of CZL on C. albicans with MIC=1.56 mg/mL, and the lowest anti-Candidial one (ZOI: 8 mm) was documented for the effect of T. parthenium on C. albicans with minimum inhibitory concentration (MIC)=50 mg/mL. Conclusion: The ascending sequence of fungicidal growth inhibition zones was as follows: C. zeylanicum>Z. multiflora>S. acerosa>T. polium>T. parthenium and P. ferulacea.
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Affiliation(s)
- Nasrin Amirrajab
- Department of Laboratory Sciences, School of Allied Medical Sciences/Infectious and Tropical Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | | | | | - Sadegh Tehrani
- Student Research Committee, Department of Laboratory Sciences, School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Yusef Yalaly
- Student Research Committee, Department of Laboratory Sciences, School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ehsan Ahmadi
- Student Research Committee, Department of Laboratory Sciences, School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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16
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Ciarlo G, Ahmadi E, Welter S, Hübner J. Factors influencing the usage of complementary and alternative medicine by patients with cancer. Complement Ther Clin Pract 2021; 44:101389. [PMID: 33932731 DOI: 10.1016/j.ctcp.2021.101389] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 03/26/2021] [Accepted: 04/05/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION The interest in CAM among cancer patients is constantly growing and about 50% already used CAM alongside cancer therapy. Little is known on the factors influencing patients' choice of type of CAM used. METHODS A questionnaire consisting of two validated instruments (the ASKU (Allgemeine Selbstwirksamkeit Kurzskala), the PAM 13-D (Patient Activation Measure) and the structured AKKOM questionnaire on CAM usage was distributed at a German university hospital. RESULTS 639 patients (male 32.9%, female 63.2%; gynecological cancer 41%, gastrointestinal 19.2%, urogenital 15.6%) took part. 60% had used CAM in the last 3 months (biological 73%, holistic 63%, mind-body-methods 62%). Participants up to 30 years preferred biologically (p = 0.001), while women with gynecological cancer favored holistic based methods (p < 0.0001). There was no association between patients' beliefs on cancer causes and the chosen CAM method. CONCLUSION Improving knowledge in patients on cancer etiology and treatments could facilitate the understanding of additional complementary treatments.
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Affiliation(s)
- G Ciarlo
- Medizinische Klinik II, Hämatologie und Internistische Onkologie, Universitätsklinikum Jena, Am Klinikum 1, 07747, Jena, Germany.
| | - E Ahmadi
- Medizinische Klinik II, Hämatologie und Internistische Onkologie, Universitätsklinikum Jena, Am Klinikum 1, 07747, Jena, Germany
| | - S Welter
- Medizinische Klinik II, Hämatologie und Internistische Onkologie, Universitätsklinikum Jena, Am Klinikum 1, 07747, Jena, Germany
| | - J Hübner
- Medizinische Klinik II, Hämatologie und Internistische Onkologie, Universitätsklinikum Jena, Am Klinikum 1, 07747, Jena, Germany
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Hashemi SE, Fazlzadeh M, Ahmadi E, Parand M, Ramavandi B, Taghizadeh F, Arfaeinia H. Occurrence, potential sources, in vitro bioaccessibility and health risk assessment of heavy metal in indoor dust from different microenvironment of Bushehr, Iran. Environ Geochem Health 2020; 42:3641-3658. [PMID: 32424790 DOI: 10.1007/s10653-020-00598-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 06/09/2019] [Accepted: 05/06/2020] [Indexed: 06/11/2023]
Abstract
Indoor dust samples were collected from 42 microenvironments of residential buildings (RB, 15 samples), official buildings (OB, 10 samples), laboratory rooms (LR, 7 samples), and school classroom (SCR, 10 samples) in Bushehr, whereby the concentration of zinc, copper, lead, cadmium, nickel, and chromium was studied. The results of this study indicated that the mean concentrations of Zn, Cu, Pb, Cd, Cr, and Ni in the indoor dust samples were 567.18, 186.09, 209.01, 5.31, 143.20, and 57.09 mg/kg in RB, 1077.34, 539.67, 274.89, 8.12, 155.30, and 92.55 mg/kg in OB, 246.40, 149.56, 127.2, 1.96, 43.45, and 91.09 mg/kg in LR and 271.43, 189.84, 164.44, 3.06, 124.20, and 70.09 mg/kg in SCR. The results of principal cluster analysis showed that the heavy metals in indoor environments were mostly originated from smoking tobacco and cigarette, traffic sources, old building materials, and building paint colors. The results of this study also revealed that the concentration of heavy metals in indoor dust had a negative and significant relationship (P value < 0.05 in most cases) with rate of ventilation, and a positive and significant relationship with smoking inside buildings (P value < 0.05 in most cases). The bioaccessibility for zinc, copper, lead, cadmium, nickel, and chromium was 69.12, 40.08, 43.33, 79.81, 31.10, and 6.31%, respectively, in indoor dust. Further, risk assessment showed that the risk values of carcinogenicity and non-carcinogenicity resulting from heavy metals inside the studied microenvironments had exceeded the recommended safe limit by EPA. In terms of potential ecological risks, it was found that heavy metals in these microenvironments have exceeded the hazardous ecological levels presented by different indices and can have considerable negative ecological effects. Thus, it is essential that further and better studies and monitoring be performed on these environments, and suitable control recommendations and solutions should be regulated for this public health threat.
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Affiliation(s)
- Seyed Enayat Hashemi
- Department of Environmental Health Engineering, School of Health and Nutrition, Bushehr University of Medical Sciences, Bushehr, Iran
- Bushehr University of Medical Sciences, Systems Environmental Health and Energy Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr, Iran
| | - Mehdi Fazlzadeh
- Social Determinants of Health Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Ehsan Ahmadi
- Department of Environmental Health Engineering, School of Public Health, Kashan University of Medical Sciences, Kashan, Iran
- Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
| | - Masoud Parand
- Department of Environmental Health Engineering, School of Health and Nutrition, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Bahman Ramavandi
- Department of Environmental Health Engineering, School of Health and Nutrition, Bushehr University of Medical Sciences, Bushehr, Iran
- Bushehr University of Medical Sciences, Systems Environmental Health and Energy Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr, Iran
| | - Farhad Taghizadeh
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Hossein Arfaeinia
- Department of Environmental Health Engineering, School of Health and Nutrition, Bushehr University of Medical Sciences, Bushehr, Iran.
- Bushehr University of Medical Sciences, Systems Environmental Health and Energy Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr, Iran.
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Aghaaminiha M, Ghanadian SA, Ahmadi E, Farnoud AM. A machine learning approach to estimation of phase diagrams for three-component lipid mixtures. Biochim Biophys Acta Biomembr 2020; 1862:183350. [PMID: 32407774 DOI: 10.1016/j.bbamem.2020.183350] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 12/10/2019] [Revised: 04/24/2020] [Accepted: 05/07/2020] [Indexed: 12/27/2022]
Abstract
The plasma membrane of eukaryotic cells is commonly believed to contain ordered lipid domains. The interest in understanding the origin of such domains has led to extensive studies on the phase behavior of mixed lipid systems. Three-component phase diagrams, composed of a high melting temperature (Tm) lipid, cholesterol, and a low Tm lipid have been valuable in studying lipid phase behavior. However, developing phase diagrams over the entire composition space and with precise tie-lines requires significant experimental effort. In this study, a machine learning approach was used to predict the Tm of lipids and generate phase diagrams from lipid mixtures. First, artificial neural network (ANN) was used for the prediction of Tm. The network was trained using available Tm data and was able to generate Tm values that closely matched literature results for its testing dataset. This model was then used to predict the Tm for lipids that have not yet been experimentally tested. Then, random forests (RF) and support vector machines (SVM) were trained and tested for their ability to predict a test three-component phase diagram. The model from the RF algorithm was able to generate a diagram that closely matched published results. This model was then used to generate phase diagrams for lipid mixtures at various temperatures and various degrees of unsaturation. This machine learning approach to the generation of lipid phase diagrams has the potential to save significant time and resources in studies of lipid phase behavior.
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Affiliation(s)
- Mohammadreza Aghaaminiha
- Department of Chemical and Biomolecular Engineering, Russ College of Engineering and Technology, Ohio University, Athens, OH 45701, USA
| | - Sara Akbar Ghanadian
- Department of Industrial and Systems Engineering, Russ College of Engineering and Technology, Ohio University, Athens, OH 45701, USA
| | - Ehsan Ahmadi
- Department of Business, School of Business and Leadership, Our Lady of the Lake University, San Antonio, TX 78207, USA.
| | - Amir M Farnoud
- Department of Chemical and Biomolecular Engineering, Russ College of Engineering and Technology, Ohio University, Athens, OH 45701, USA.
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Ahmadi E, Mardani K, Amiri A. Molecular Detection and Antimicrobial Resistance Patterns of Shiga Toxigenic Escherichia coli Isolated from Bovine Subclinical Mastitis Milk Samples in Kurdistan, Iran. Arch Razi Inst 2020; 75:169-177. [PMID: 32621445 DOI: 10.22092/ari.2019.124238.1278] [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] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 06/16/2019] [Indexed: 09/30/2022]
Abstract
Bovine subclinical mastitis is regarded as a devastating disease due to the economic costs imposed on dairy husbandry. Moreover, it is a hazard in the public sector in the cases of zoonotic bacteria because of the potential role of unpasteurized milk and dairy products to propagate the infectious agent to the human food chain. The present study aimed to evaluate the frequency, virulence content, and antimicrobial resistance profile of Shiga toxin-producing Escherichia coli (STEC) strains isolated from bovine subclinical mastitis in Kurdistan Province, West of Iran. A total of 400 bovine subclinical mastitis milk samples recognized in the California Mastitis Test were collected aseptically and analyzed for the presence of E. coli phenotypically and molecularly. The isolates were genotypically screened for stx1, stx2, and eae genes. Furthermore, O157:H7 STEC strain was searched among the isolates in a duplex polymerase chain reaction. The antimicrobial resistance scheme of the isolates was determined using the agar disk diffusion method. In general, 173 (43.25%) E. coli isolates were detected among which 39 (22.54%) isolates were STEC. The frequency of STEC virulence genotypes was stx2 (25 isolates, 64.10%), stx2+eae (6 isolates, 15.38%), stx1+stx2 (6 isolates, 15.38%), and stx1+stx2+eae (2 isolates, 5.12%). In addition, three O157: H7 strains were identified with the genetic content of stx1+stx2+eae (2 isolates) and stx1+stx2 (1 isolate). The most prevalent antimicrobial resistance was observed against streptomycin, tetracycline, and ampicillin. Gentamycin, amoxicillin-clavulanic acid, and trimethoprim-sulfadiazine were the most effective antibiotics against O157 strains, whereas gentamycin, ciprofloxacin, and nitrofurantoin were effective against non-O157 strains. The results revealed the significant role of STEC in bovine subclinical mastitis in the studied region. In addition, the distribution of O157:H7 strain and high prevalence of multidrug resistance among the isolates is a matter of concern. Therefore, there is a potential threat of human infection following the consumption of contaminated milk with STEC in Kurdistan Province, Iran.
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Affiliation(s)
- E Ahmadi
- Department of Pathobiology, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran.,Department of Pathobiology, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran
| | - K Mardani
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - A Amiri
- Department of Basic Sciences, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran
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20
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Badi MY, Esrafili A, Pasalari H, Kalantary RR, Ahmadi E, Gholami M, Azari A. Degradation of dimethyl phthalate using persulfate activated by UV and ferrous ions: optimizing operational parameters mechanism and pathway. J Environ Health Sci Eng 2019; 17:685-700. [PMID: 32030143 PMCID: PMC6985424 DOI: 10.1007/s40201-019-00384-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 06/10/2019] [Indexed: 05/19/2023]
Abstract
The present study aimed to model and optimize the dimethyl phthalate (DMP) degradation from aqueous solution using UVC/ Na2S2O8/Fe2+ system based on the response surface methodology (RSM). A high removal efficiency (97%) and TOC reduction (64.2%) were obtained under optimum conditions i.e. contact time = 90 min, SPS concentration = 0.601 mM/L, Fe2+ = 0.075 mM/L, pH = 11 and DMP concentration = 5 mg/L. Quenching experiments confirmed that sulfate radicals were predominant radical species for DMP degradation. The effect of CO3 - on DMP degradation was more complicated than other aquatic background anions. The possible pathway for DMP decomposition was proposed according to HPLC and GC-MS analysis. The average oxidation state (AOS) and carbon oxidation state (COS) values as biodegradability indicators demonstrated that the UVC/SPS/Fe2+ system can improve the bioavailability of DMP over the time. Finally, the performance of UVC/SPS/Fe2+ system for DMP treatment in different aquatic solutions: tap water, surface runoff, treated and raw wastewater were found to be 95.7, 88.5, 80.5, and 56.4%, respectively. Graphical abstract.
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Affiliation(s)
- Mojtaba Yegane Badi
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Esrafili
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Hasan Pasalari
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Roshanak Rezaei Kalantary
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Ehsan Ahmadi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Students’ Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
| | - Mitra Gholami
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Azari
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, School of Public Health, Kashan University of Medical Sciences, Kashan, Iran
- Students’ Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
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Gholizadeh A, Taghavi M, Moslem A, Neshat AA, Lari Najafi M, Alahabadi A, Ahmadi E, Ebrahimi Aval H, Asour AA, Rezaei H, Gholami S, Miri M. Ecological and health risk assessment of exposure to atmospheric heavy metals. Ecotoxicol Environ Saf 2019; 184:109622. [PMID: 31499446 DOI: 10.1016/j.ecoenv.2019.109622] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 03/12/2019] [Revised: 08/20/2019] [Accepted: 08/28/2019] [Indexed: 06/10/2023]
Abstract
In the present study, we assessed the concentration of airborne HMs (Zn, Cu, Pb, and Cd) and their probable sources using the bark of Pinus eldarica as a bio-indicator. Hence, 47 tree bark samples were harvested according to the land uses and biomonitoring techniques in the city of Yazd, Iran. The potential health risks in 13 age groups, ecological risk, as well as the possible relationship between HM concentrations and traffic indicators, were evaluated. The order of average HM concentrations in the P. eldarica bark samples was as Zn > Pb > Cu > Cd. The mean values of non-carcinogenic risks of all HMs in entire age groups were within secure range (HQ < 1); however, the carcinogenic risk of Cd was higher than the allowed level (TCR > 1 × 10-6). About Pb, it was in the safe level. The main element causing potential ecological risks was Cd, indicating moderate to very high ecological risk in most of the study areas. There was an inverse significant association between distance from major roads and Pb concentration (β = -0.011 95% confidence interval (CI): 0.022, -0.0001). All HMs in bark samples render the negative Moran's index, representing a random spatial distribution pattern. Besides, according to principal component analysis (PCA), the first component accounted for 36.55% of the total variance, dominated by Cd, Pb, Cu, and Zn, respectively, and characterized by vehicle and industrial emissions. Our results infer that industrial activities and traffic are the main sources of HMs pollution in urban environments that should be considered by decision-makers.
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Affiliation(s)
| | - Mahmoud Taghavi
- Department of Environmental Health, School of Public Health, Gonabad University of Medical Sciences, Gonabad, Iran
| | - Alireza Moslem
- School of Medicine, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | | | - Moslem Lari Najafi
- Food, Drug and Cosmetics Safety Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Ahmad Alahabadi
- Non-Communicable Diseases Research Center, Department of Environmental Health, School of Public Health, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Ehsan Ahmadi
- Department of Environmental Health Engineering, School of Public Health, Kashan University of Medical Sciences, Kashan, Iran; Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
| | - Hamideh Ebrahimi Aval
- Department of Health Education and Health Promotion, School of Public Health, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Akbar Ahmadi Asour
- Department of Occupational Health, School of Public Health, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Hossein Rezaei
- Non-Communicable Diseases Research Center, Department of Environmental Health, School of Public Health, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Sedighe Gholami
- Non-Communicable Diseases Research Center, Department of Environmental Health, School of Public Health, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Mohammad Miri
- Non-Communicable Diseases Research Center, Department of Environmental Health, School of Public Health, Sabzevar University of Medical Sciences, Sabzevar, Iran.
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Ansari M, Ehrampoush MH, Farzadkia M, Ahmadi E. Dynamic assessment of economic and environmental performance index and generation, composition, environmental and human health risks of hospital solid waste in developing countries; A state of the art of review. Environ Int 2019; 132:105073. [PMID: 31421384 DOI: 10.1016/j.envint.2019.105073] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [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: 04/19/2019] [Revised: 07/30/2019] [Accepted: 07/30/2019] [Indexed: 05/22/2023]
Abstract
Many studies have been conducted on hospital solid waste management (HSWM) throughout the world, especially developing countries. This interdisciplinary study aims to summarize the available knowledge on the health and environmental risks of hospital solid waste (HSW) and also, develop a dynamic associational assessment among hospital solid waste generation rate (HSWGR), hospital solid waste composition (HSWC), gross domestic product (GDP) per capita, and environmental performance index (EPI) in some developing countries for the first time. The results of this study showed that researchers from India, China, Pakistan, Brazil, and Iran had found more evidence about the health, economic, and environmental issues in HSW than the other developing countries. The literature showed that the highest and lowest reported HSWGR (in national average level) belonged to Ethiopia (6.03) and India (0.24) kg bed -1 day-1, respectively. It has also been shown that all studied countries except Serbia, have higher levels of hazardous waste in their HSWC, based on the WHO's standard. Furthermore, the quantity and quality of HSW in developing countries depend on the service provided by the hospital, type of hospital, HSWM system, and the level of regional economic and culture. The association analysis showed that the EPI and GDP per capita of developing countries were significantly (p-value <0.05) associated with HSWGR, non-hazardous HSW, and hazardous HSW by the Spearman coefficients equal to 0.389, 0.118, -0.118, and 0.122, 0.216, and -0.346, respectively. However, it can be concluded that GDP per capita and EPI have a weak correlation with hazardous HSW and non-hazardous HSW. Moreover, HSW has many hazardous health and environmental risks such as dioxin and furan, that must be controlled and managed through implementing programs and policies based on sustainable development. As a final point, we believed that the present study can be considered to be a guide for future studies on HSWM in developing countries.
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Affiliation(s)
- Mohsen Ansari
- Environmental Science and Technology Research Center, Department of Environmental Health Engineering, Shahid Sadoughi University of Medical Sciences, Yazd, Iran; Student Research Committee, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Hassan Ehrampoush
- Environmental Science and Technology Research Center, Department of Environmental Health Engineering, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mahdi Farzadkia
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
| | - Ehsan Ahmadi
- Department of Environmental Health Engineering, School of Public Health, Kashan University of Medical Sciences, Kashan, Iran; Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
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Ahmadi E, Masel DT, Schwerha D, Hostetler S. A bi-objective optimization approach for configuring surgical trays with ergonomic risk consideration. ACTA ACUST UNITED AC 2019. [DOI: 10.1080/24725579.2019.1620383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Ehsan Ahmadi
- Department of Industrial and Systems Engineering, Russ College of Engineering and Technology, Ohio University, Athens, USA
| | - Dale T. Masel
- Department of Industrial and Systems Engineering, Russ College of Engineering and Technology, Ohio University, Athens, USA
| | - Diana Schwerha
- Department of Industrial and Systems Engineering, Russ College of Engineering and Technology, Ohio University, Athens, USA
| | - Seth Hostetler
- Center for Healthcare Systems Re-engineering Department, Geisinger Health System, Danville, USA
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Solookinejad G, Jabbari M, Nafar M, Ahmadi E, Asadpour SH. Controlling Goos-Hänchen shifts due to the surface plasmon effect in a hybrid system. Appl Opt 2018; 57:8193-8198. [PMID: 30461769 DOI: 10.1364/ao.57.008193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 08/30/2018] [Indexed: 06/09/2023]
Abstract
We have theoretically studied the Goos-Hänchen (GH) shifts of both the reflected and transmitted probe beams emerging from a cavity consisting of a hybrid system of a coupled quantum dot (QD) nanostructure and a metallic nanoparticle (MNP). It is realized that the GH shifts in the transmitted and reflected light beams can be enhanced due to the surface plasmon effect in the MNP. Also, it is shown that by adjusting the distance between QD and MNP and polarization control between probe field and major axis of the hybrid system, the simultaneous negative and positive GH shifts in reflected and transmitted light beams can occur. Moreover, the effects of the intensity and detuning of the coupling light on the GH shift properties of the reflected and transmitted lights have been discussed. We have found that under different parametric conditions of the hybrid system, the GH shifts of the reflected and transmitted light beams can be adjusted by tuning the intensity and controlling the detuning of the coupling field. The results show that our proposed model may be used for future optical sensor devices based on MNP hybrid systems.
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Najafi V, Ahmadi E, Ziaee F. Chemical modification of PVC by different nucleophiles in solvent/non-solvent system at high temperature. Iran Polym J 2018. [DOI: 10.1007/s13726-018-0658-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Ahmadi E, Masel DT, Metcalf AY, Schuller K. Inventory management of surgical supplies and sterile instruments in hospitals: a literature review. Health Syst (Basingstoke) 2018; 8:134-151. [PMID: 31275574 DOI: 10.1080/20476965.2018.1496875] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 04/20/2018] [Accepted: 06/27/2018] [Indexed: 10/28/2022] Open
Abstract
Operating rooms are considered a significant revenue source, as well as the main source of waste and cost, among the hospital's departments. Any cost savings in operating rooms will have a broad financial impact. Over the last decades, many researchers and practitioners have conducted studies to deal with the issue of managing surgical supplies and instruments, which are highly affected by surgeons' preferences. The purpose of this article is to present an up-to-date review of research in the field of inventory management of surgical supplies and instruments. We have analysed the literature in a systematic manner and organised the identified papers into two groups: the papers that were published by scientific researchers and developed optimisation techniques and the papers that were published by practitioners and reported their observations of the current issues in the operating room. We also identify the future research directions leading to operating room inventory cost reduction.
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Affiliation(s)
- Ehsan Ahmadi
- Department of Industrial and Systems Engineering, Russ College of Engineering and Technology, Ohio University, Athens, OH, USA
| | - Dale T Masel
- Department of Industrial and Systems Engineering, Russ College of Engineering and Technology, Ohio University, Athens, OH, USA
| | - Ashley Y Metcalf
- Department of Management Systems, College of Business, Ohio University, Athens, OH, USA
| | - Kristin Schuller
- Department of Social and Public Health, College of Health Sciences and Professions, Ohio University, Athens, OH, USA
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Meghdari A, Shariati A, Alemi M, Vossoughi GR, Eydi A, Ahmadi E, Mozafari B, Amoozandeh Nobaveh A, Tahami R. Arash: A social robot buddy to support children with cancer in a hospital environment. Proc Inst Mech Eng H 2018; 232:605-618. [DOI: 10.1177/0954411918777520] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This article presents the thorough design procedure, specifications, and performance of a mobile social robot friend Arash for educational and therapeutic involvement of children with cancer based on their interests and needs. Our research focuses on employing Arash in a pediatric hospital environment to entertain, assist, and educate children with cancer who suffer from physical pain caused by both the disease and its treatment process. Since cancer treatment causes emotional distress, which can reduce the efficiency of medications, using social robots to interact with children with cancer in a hospital environment could decrease this distress, thereby improving the effectiveness of their treatment. Arash is a 15 degree-of-freedom low-cost humanoid mobile robot buddy, carefully designed with appropriate measures and developed to interact with children ages 5–12 years old. The robot has five physical subsystems: the head, arms, torso, waist, and mobile-platform. The robot’s final appearance is a significant novel concept; since it was selected based on a survey taken from 50 children with chronic diseases at three pediatric hospitals in Tehran, Iran. Founded on these measures and desires, Arash was designed, built, improved, and enhanced to operate successfully in pediatric cancer hospitals. Two experiments were devised to evaluate the children’s level of acceptance and involvement with the robot, assess their feelings about it, and measure how much the robot was similar to the favored conceptual sketch. Both experiments were conducted in the form of storytelling and appearance/performance evaluations. The obtained results confirm high engagement and interest of pediatric cancer patients with the constructed robot.
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Affiliation(s)
- Ali Meghdari
- Social & Cognitive Robotics Laboratory, Center of Excellence in Design, Robotics, and Automation (CEDRA), Sharif University of Technology, Tehran, Iran
| | - Azadeh Shariati
- Social & Cognitive Robotics Laboratory, Center of Excellence in Design, Robotics, and Automation (CEDRA), Sharif University of Technology, Tehran, Iran
- Department of Mechanical Engineering, Islamic Azad University, North Tehran Branch, Tehran, Iran
| | - Minoo Alemi
- Department of Humanities, Islamic Azad University, West Tehran Branch, Tehran, Iran
| | - Gholamreza R Vossoughi
- Social & Cognitive Robotics Laboratory, Center of Excellence in Design, Robotics, and Automation (CEDRA), Sharif University of Technology, Tehran, Iran
| | - Abdollah Eydi
- Social & Cognitive Robotics Laboratory, Center of Excellence in Design, Robotics, and Automation (CEDRA), Sharif University of Technology, Tehran, Iran
| | - Ehsan Ahmadi
- Social & Cognitive Robotics Laboratory, Center of Excellence in Design, Robotics, and Automation (CEDRA), Sharif University of Technology, Tehran, Iran
| | - Behrad Mozafari
- Social & Cognitive Robotics Laboratory, Center of Excellence in Design, Robotics, and Automation (CEDRA), Sharif University of Technology, Tehran, Iran
| | - Ali Amoozandeh Nobaveh
- Social & Cognitive Robotics Laboratory, Center of Excellence in Design, Robotics, and Automation (CEDRA), Sharif University of Technology, Tehran, Iran
| | - Reza Tahami
- Social & Cognitive Robotics Laboratory, Center of Excellence in Design, Robotics, and Automation (CEDRA), Sharif University of Technology, Tehran, Iran
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Matin AR, Yousefzadeh S, Ahmadi E, Mahvi A, Alimohammadi M, Aslani H, Nabizadeh R. A comparative study of the disinfection efficacy of H2O2/ferrate and UV/H2O2/ferrate processes on inactivation of Bacillus subtilis spores by response surface methodology for modeling and optimization. Food Chem Toxicol 2018; 116:129-137. [PMID: 29621576 DOI: 10.1016/j.fct.2018.04.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 03/14/2018] [Accepted: 04/01/2018] [Indexed: 12/07/2022]
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Ahmadi E, Goldengorin B, Süer GA, Mosadegh H. A hybrid method of 2-TSP and novel learning-based GA for job sequencing and tool switching problem. Appl Soft Comput 2018. [DOI: 10.1016/j.asoc.2017.12.045] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Yousefzadeh S, Matin AR, Ahmadi E, Sabeti Z, Alimohammadi M, Aslani H, Nabizadeh R. Response surface methodology as a tool for modeling and optimization of Bacillus subtilis spores inactivation by UV/ nano-Fe 0 process for safe water production. Food Chem Toxicol 2018; 114:334-345. [DOI: 10.1016/j.fct.2018.02.045] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 02/13/2018] [Accepted: 02/20/2018] [Indexed: 11/27/2022]
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31
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Ahmadi E, Sadrjavadi K, Mohammadi G, Fattahi A. De-Esterified Tragacanth Microspheres Loaded into Eudragit S-100 Coated Capsules for Colon-Targeted Delivery. Iran J Pharm Res 2018; 17:470-479. [PMID: 29881405 PMCID: PMC5985165] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The objective of this study was to develop a novel bacterially-triggered micro-particular system of de-esterified tragacanth (DET) in combination with Eudragit S-100 coated capsules for colon drug delivery of 5-fluorouracil (5-FU) using microemulsion method. The loading study was conducted at different drug-to-polymer ratios and cross-linker concentrations. The maximum loading efficiency was achieved, 44.1% at 1:5 drug-to-polymer ratio and 0.7% cross-linker concentration. The FTIR results also confirmed the encapsulation of 5-FU in microspheres. The release profile was dependent on the cross-linker concentration, environmental pH, and presence of pectinase enzyme. Microspheres inserted into Eudragit S-100 coated capsules released less than 5% of the drug at stomach and small intestine pH levels, whereas 70% of the drug was released at colon pH levels, and about 25% of the drug did not release unless in the presence of pectinase enzyme. To omit burst release, microspheres were washed with water, and the release became pH independent, and was just achieved in the presence of pectinase enzyme. 5-FU loaded microspheres with an IC50 value of 80 µg/mL were as effective as the free drug on HT-29. Generally, the results demonstrated that drug-loaded microspheres inserted into Eudragit S-100 coated capsules can be effective for colon-targeted delivery.
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Affiliation(s)
- Ehsan Ahmadi
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Komail Sadrjavadi
- Pharmaceutical Sciences Research Center, School of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Ghobad Mohammadi
- Nano Drug Delivery Research Center, Faculty of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Ali Fattahi
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Corresponding author: E-mail:
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Arfaeinia H, Asadgol Z, Ahmadi E, Seifi M, Moradi M, Dobaradaran S. Characteristics, distribution and sources of polychlorinated biphenyls (PCBs) in coastal sediments from the heavily industrialized area of Asalouyeh, Iran. Water Sci Technol 2017; 76:3340-3350. [PMID: 29236013 DOI: 10.2166/wst.2017.500] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
In this research, the levels of polychlorinated biphenyls (PCBs) were investigated in the marine sediments of Asaluyeh harbor, in the Persian Gulf. The samples were taken from industrial, semi-industrial and urban regions. The mean concentration levels of total (Σ) 18 detected PCBs were 514.32, 144.67 and 31.6 pg/g dw for the industrial, semi-industrial and urban sampling stations, respectively. Based on a multivariate statistical analysis, it was found that high contamination levels of PCBs in sediments collected along the Persian Gulf were associated with releases from local industries. Total organic carbon (TOC) content was significantly and positively correlated with the concentrations of PCB congeners. World Health Organization toxic equivalents (TEQs) for PCBs ranged from 0.04 to 2.66 pg TEQ/g dry weight (dw) in the coastal sediments. The TEQ values in this study were higher than many reported worldwide in the literature for sediments. This suggests that there are high levels of contamination in the area due to industrial and other human activities.
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Affiliation(s)
- Hossein Arfaeinia
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran; Joint main authors
| | - Zahra Asadgol
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran; Joint main authors
| | - Ehsan Ahmadi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
| | - Morteza Seifi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoud Moradi
- Research Center for Environmental Determinants of Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Sina Dobaradaran
- Department of Environmental Health Engineering, Faculty of Health, Bushehr University of Medical Sciences, Bushehr, Iran; The Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran; and Systems Environmental Health, Oil, Gas and Energy Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran E-mail:
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Ghaffari HR, Aval HE, Alahabadi A, Mokammel A, Khamirchi R, Yousefzadeh S, Ahmadi E, Rahmani-Sani A, Estaji M, Ghanbarnejad A, Gholizadeh A, Taghavi M, Miri M. Asthma disease as cause of admission to hospitals due to exposure to ambient oxidants in Mashhad, Iran. Environ Sci Pollut Res Int 2017; 24:27402-27408. [PMID: 28975536 DOI: 10.1007/s11356-017-0226-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [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: 06/22/2017] [Accepted: 09/13/2017] [Indexed: 05/21/2023]
Abstract
Nowadays, asthma is one of the most common chronic respiratory diseases, worldwide. Many reports have emphasized the correlation between the short-term exposure to the ambient air pollutants and acute respiratory diseases, especially among children with asthmatic symptoms. The aim of this study was to evaluate the relationship between the exposure to three atmospheric antioxidants (NO2, SO2, and O3) and hospital admission due to asthmatic disease (HAAD) in the city of Mashhad, Iran. The concentrations of atmospheric antioxidants were obtained from the real-time monitoring stations located in the city. The collected data were employed for developing predictive models in the AirQ software. In order to investigate the association between short-term exposure to air pollutants and HAAD, the study participants were categorized into two age groups: less than 15 and from 15 to 64 years old. The results indicated that in people less than 15 years increase in NO2 (attributable proportion (AP) = 3.775%, 95% CI 0.897-6.883%), SO2 (AP = 3.649%, 95% CI 1.295-5.937%), and O3 (AP = 0.554%,95% CI 0.00-3.321) results in increase in HAAD. While for those aged between 15 and 64 years, the AP was 4.192% (95% CI 0.450-7.662%) for NO2; 0.0% (95% CI 0.00-1.687%) for SO2; and 0.236% (95% CI 0.00-1.216%) for O3. The number of asthmatic cases who were less than 15 years admitted to the hospitals during the study period was higher than that of those within the age groups between 15 and 64 years as a consequence of exposure to NO2 (101 vs. 75), SO2 (98 vs. 0), and O3 (15 vs. 3), respectively. To the best of our knowledge, the AirQ model has not been applied before to estimate the effect of atmospheric antioxidant exposure on hospital admission because of asthma disease. Eventually, this model is proposed to be applicable for other cities around the world.
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Affiliation(s)
- Hamid Reza Ghaffari
- Department of Environmental Health Engineering, Faculty of Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamideh Ebrahimi Aval
- Department of Environmental Health, School of Public Health, Semnan University of Medical Sciences, Semnan, Iran
| | - Ahmad Alahabadi
- Department of Environmental Health, School of Public Health, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Adel Mokammel
- Department of Environmental Health, School of Public Health, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Ramzanali Khamirchi
- Department of Environmental Health, School of Public Health, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Samira Yousefzadeh
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health, School of Public Health, Semnan University of Medical Sciences, Semnan, Iran
| | - Ehsan Ahmadi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Abolfazl Rahmani-Sani
- Department of Environmental Health, School of Public Health, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Mehdi Estaji
- Department of Environmental Health Engineering, School of Public Health, Guilan University of Medical Sciences, Rasht, Iran
| | - Amin Ghanbarnejad
- Department of Epidemiology and Biostatistics, School of Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Abdolmajid Gholizadeh
- Department of Environmental Health, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mahmoud Taghavi
- Department of Environmental Health, School of Public Health, Gonabad University of Medical Sciences, Gonabad, Iran
| | - Mohammad Miri
- Department of Environmental Health, School of Public Health, Sabzevar University of Medical Sciences, Sabzevar, Iran.
- Department of Environmental Health, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
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Babaei AA, Kakavandi B, Rafiee M, Kalantarhormizi F, Purkaram I, Ahmadi E, Esmaeili S. Comparative treatment of textile wastewater by adsorption, Fenton, UV-Fenton and US-Fenton using magnetic nanoparticles-functionalized carbon (MNPs@C). J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2017.07.009] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Yousefzadeh S, Ahmadi E, Gholami M, Ghaffari HR, Azari A, Ansari M, Miri M, Sharafi K, Rezaei S. A comparative study of anaerobic fixed film baffled reactor and up-flow anaerobic fixed film fixed bed reactor for biological removal of diethyl phthalate from wastewater: a performance, kinetic, biogas, and metabolic pathway study. Biotechnol Biofuels 2017; 10:139. [PMID: 28580013 PMCID: PMC5452402 DOI: 10.1186/s13068-017-0826-9] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Accepted: 05/22/2017] [Indexed: 05/29/2023]
Abstract
BACKGROUND Phthalic acid esters, including diethyl phthalate (DEP), which are considered as top-priority and hazardous pollutants, have received significant attention over the last decades. It is vital for industries to select the best treatment technology, especially when the DEP concentration in wastewater is high. Meanwhile, anaerobic biofilm-based reactors are considered as a promising option. Therefore, in the present study, for the biological removal of DEP from synthetic wastewater, two different anaerobic biofilm-based reactors, including anaerobic fixed film baffled reactor (AnFFBR) and up-flow anaerobic fixed film fixed bed reactor (UAnFFFBR), were compared from kinetic and performance standpoints. As in the previous studies, only the kinetic coefficients have been calculated and the relationship between kinetic coefficients and their interpretation has not been evaluated, the other aim of the present study was to fill this research gap. RESULTS In optimum conditions, 90.31 and 86.91% of COD as well as 91.11 and 88.72% of DEP removal were achieved for the AnFFBR and UAnFFFBR, respectively. According to kinetic coefficients (except biomass yield), the AnFFBR had better performance as it provided a more favorable condition for microbial growth. The Grau model was selected as the best mathematical model for designing and predicting the bioreactors' performance due to its high coefficients of determination (0.97 < R2). With regard to the insignificant variations of the calculated Grau kinetic coefficients (KG) when the organic loading rate (with constant HRT) increased, it can be concluded that both of the bioreactors can tolerate high organic loading rate and their performance is not affected by the applied DEP concentrations. CONCLUSIONS Both the bioreactors were capable of treating low-to-high strength DEP wastewater; however, according to the experimental results and obtained kinetic coefficients, the AnFFBR indicated higher performance. Although the AnFFBR can be considered as a safer treatment option than the UAnFFFBR due to its lower DEP concentrations in sludge, the UAnFFFBR had lower VSS/TSS ratio and sludge yield, which could make it more practical for digestion. Finally, both the bioreactors showed considerable methane yield; however, compared to the UAnFFFBR, the AnFFBR had more potential for bioenergy production. Although both the selected bioreactors achieved nearly 90% of DEP removal, they can only be considered as pre-treatment methods according to the standard regulations and should be coupled with further technology.
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Affiliation(s)
- Samira Yousefzadeh
- Department of Environmental Health Engineering, Aradan School of Public Health and Paramedical, Semnan University of Medical Sciences, Semnan, Iran
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ehsan Ahmadi
- Students’ Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, School of Public Health, Kashan University of Medical Sciences, Kashan, Iran
| | - Mitra Gholami
- Occupational Health Research Center (OHRC), Iran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Hamid Reza Ghaffari
- Department of Environmental Health Engineering, Faculty of Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Ali Azari
- Department of Environmental Health Engineering, School of Public Health, Kashan University of Medical Sciences, Kashan, Iran
| | - Mohsen Ansari
- Environmental Science and Technology Research Center, Department of Environmental Health, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Miri
- Department of Environmental Health, School of Public Health, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Kiomars Sharafi
- Research Center for Environmental Determinants of Health (RCEDH), Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Soheila Rezaei
- Social Determinants of Health Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
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Alahabadi A, Ehrampoush MH, Miri M, Ebrahimi Aval H, Yousefzadeh S, Ghaffari HR, Ahmadi E, Talebi P, Abaszadeh Fathabadi Z, Babai F, Nikoonahad A, Sharafi K, Hosseini-Bandegharaei A. A comparative study on capability of different tree species in accumulating heavy metals from soil and ambient air. Chemosphere 2017; 172:459-467. [PMID: 28104557 DOI: 10.1016/j.chemosphere.2017.01.045] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [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: 12/05/2016] [Revised: 01/05/2017] [Accepted: 01/06/2017] [Indexed: 06/06/2023]
Abstract
Heavy metals (HMs) in the urban environment can be bio-accumulated by plant tissues. The aim of this study was to compare fourteen different tree species in terms of their capability to accumulate four airborne and soilborne HMs including; zinc (Zn), copper (Cu), lead (Pb), and cadmium (Cd). Samplings were performed during spring, summer, and fall seasons. To compare bioaccumulation ability, bio-concentration factor (BCF), comprehensive bio-concentration index (CBCI), and metal accumulation index (MAI) were applied. Species with the highest accumulation for single metal which shown using BCF did not have the highest CBCI and MAI. Based on CBCI and MAI, Pinus eldarica (7.74), Wistaria sinensis (8.82), Morus alba (8.7), and Nigral morus (27.15) had the highest bioaccumulation capacity of HMs, respectively. Therefore, these species can be used for phytoextraction of HMs pollution and green and buffer zone in the urban.
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Affiliation(s)
- Ahmad Alahabadi
- Department of Environmental Health, School of Public Health, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Mohammad Hassan Ehrampoush
- Department of Environmental Health, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Miri
- Department of Environmental Health, School of Public Health, Sabzevar University of Medical Sciences, Sabzevar, Iran; Department of Environmental Health, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
| | - Hamideh Ebrahimi Aval
- Department of Environmental Health, School of Public Health, Semnan University of Medical Sciences, Semnan, Iran
| | - Samira Yousefzadeh
- Department of Environmental Health Engineering, Aradan School of Public Health and Paramedical, Semnan University of Medical Sciences, Semnan, Iran; Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid Reza Ghaffari
- Social Determinants in Health Promotion Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Ehsan Ahmadi
- Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Environmental Health, School of Health, Kashan University of Medical Sciences, Kashan, Iran
| | - Parvaneh Talebi
- Department of Environmental Health, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Zeynab Abaszadeh Fathabadi
- Department of Environmental Health, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Fatemeh Babai
- Department of Environmental Health, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Ali Nikoonahad
- Department of Environmental Health, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Kiomars Sharafi
- Research Center for Environmental Determinants of Health (RCEDH), Kermanshah University of Medical Sciences, Kermanshah, Iran; Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Hosseini-Bandegharaei
- Department of Environmental Health, School of Public Health, Sabzevar University of Medical Sciences, Sabzevar, Iran; Department of Engineering, Kashmar Branch, Islamic Azad University, PO Box 161, Kashmar, Iran
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Saki A, Roomiani S, Mirzaei S, Ahmadi E, Khoramabadi V. Effects of different force moulting methods on performance, egg quality and plasma metabolites in Japanese quails. BJVM 2017. [DOI: 10.15547/bjvm.1029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Miri M, Rostami Aghdam Shendi M, Ghaffari HR, Ebrahimi Aval H, Ahmadi E, Taban E, Gholizadeh A, Yazdani Aval M, Mohammadi A, Azari A. Investigation of outdoor BTEX: Concentration, variations, sources, spatial distribution, and risk assessment. Chemosphere 2016; 163:601-609. [PMID: 27589149 DOI: 10.1016/j.chemosphere.2016.07.088] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [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: 05/24/2016] [Revised: 07/24/2016] [Accepted: 07/27/2016] [Indexed: 06/06/2023]
Abstract
The aim of this study was to measure BTEX (benzene, toluene, ethylbenzene, and xylenes) concentrations in the ambient air of Tehran, the capital of Iran, and investigate their seasonal variations, probable sources, spatial mapping, and risk assessment. The concentrations of BTEX were measured using a continuous monitoring device installed in seven stations around the city. Spatial mapping procedure was conducted using the inverse distance weighting (IDW) method. Monte Carlo simulation was used to assess the carcinogenic and noncarcinogenic risks imposed by BTEX. The highest and lowest annual mean concentrations of toluene and ethylbenzene were recorded as 16.25 and 3.63 μg m(-3), respectively. The maximum (6.434) and minimum (3.209) toluene/benzene (T/B) ratio was observed in summer and winter, respectively. The spatial distribution of BTEX pollution indicated that the highest concentrations were found along the major roads because of heavy traffic. Spearman's rank correlation coefficients and concentration ratios showed that BTEX were produced by the multiemission sources. The mean of inhalation lifetime cancer risk (LTCR) for benzene was 3.93 × 10(-7), which is lower than the limits recommended by the United States Environmental Protection Agency (US EPA) and the World Health Organization (WHO). The hazard quotient (HQ), noncarcinogenic risk index, for all BTEX compounds was <1. The obtained results showed no threat of BTEX concentrations to human health. However, as the concentrations of BTEX will increase due to the rapid growth of vehicles and industrial activities, much effort is required to control and manage the levels of these compounds in the future.
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Affiliation(s)
- Mohammad Miri
- Department of Environmental Health, School of Public Health, Sabzevar University of Medical Sciences, Sabzevar, Iran; Department of Environmental Health, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
| | - Maryam Rostami Aghdam Shendi
- Department of Occupational Health Engineering, Faculty of Medical Science, Tarbiat Modares University, Tehran, Iran
| | - Hamid Reza Ghaffari
- Social Determinants in Health Promotion Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran; Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamideh Ebrahimi Aval
- Department of Environmental Health, School of Public Health, Semnan University of Medical Sciences, Semnan, Iran
| | - Ehsan Ahmadi
- Department of Environmental Health, School of Health, Kashan University of Medical Sciences, Kashan, Iran; Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ebrahim Taban
- Department of Occupational Health Engineering, Faculty of Medical Science, Tarbiat Modares University, Tehran, Iran
| | - Abdolmajid Gholizadeh
- Department of Environmental Health, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohsen Yazdani Aval
- Department of Occupational Health Engineering, Faculty of Medical Science, Tarbiat Modares University, Tehran, Iran.
| | - Amir Mohammadi
- Department of Environmental Health, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Ali Azari
- Research Center for Environmental Determinants of Health, Kermanshah University of Medical Sciences, Kermanshah, Iran; Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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Miri M, Derakhshan Z, Allahabadi A, Ahmadi E, Oliveri Conti G, Ferrante M, Aval HE. Mortality and morbidity due to exposure to outdoor air pollution in Mashhad metropolis, Iran. The AirQ model approach. Environ Res 2016; 151:451-457. [PMID: 27565880 DOI: 10.1016/j.envres.2016.07.039] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [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: 06/04/2016] [Revised: 07/27/2016] [Accepted: 07/28/2016] [Indexed: 05/22/2023]
Abstract
In the past two decades, epidemiological studies have shown that air pollution is one of the causes of morbidity and mortality. In this study the effect of PM10, PM2.5, NO2, SO2 and O3 pollutants on human health among the inhabitants of Mashhad has been evaluated. To evaluate the health effects due to air pollution, the AirQ model software 3.3.2, developed by WHO European Centre for Environment and Health, was used. The daily data related to the pollutants listed above has been used for the short term health effects (total mortality, cardiovascular and respiratory mortality, hospitalization due to cardiovascular and respiratory diseases, chronic obstructive pulmonary disease and acute myocardial infarction). PM2.5 had the most health effects on Mashhad inhabitants. With increasing in each 10μg/m3, relative risk rate of pollutant concentration for total mortality due to PM10, PM2.5, SO2, NO2 and O3 was increased of 0.6%, 1.5%, 0.4%, 0.3% and 0.46% respectively and, the attributable proportion of total mortality attributed to these pollutants was respectively equal to 4.24%, 4.57%, 0.99%, 2.21%, 2.08%, and 1.61% (CI 95%) of the total mortality (correct for the non-accident) occurred in the year of study. The results of this study have a good compatibly with other studies conducted on the effects of air pollution on humans. The AirQ software model can be used in decision-makings as a useful and easy tool.
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Affiliation(s)
- Mohammad Miri
- Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran; Department of Environmental Health Engineering, School of Public Health, Sabzevar University of Medical Science, Sabzevar, Iran
| | - Zahra Derakhshan
- Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Ahmad Allahabadi
- Department of Environmental Health Engineering, School of Public Health, Sabzevar University of Medical Science, Sabzevar, Iran
| | - Ehsan Ahmadi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Gea Oliveri Conti
- Environmental and Food Hygiene Laboratories (LIAA) of Department of Medical Sciences, Surgical and Advanced Technologies "G.F. Ingrassia", Hygiene and Public Health, University of Catania, Italy.
| | - Margherita Ferrante
- Environmental and Food Hygiene Laboratories (LIAA) of Department of Medical Sciences, Surgical and Advanced Technologies "G.F. Ingrassia", Hygiene and Public Health, University of Catania, Italy
| | - Hamideh Ebrahimi Aval
- Department of Environmental Health Engineering, School of Public Health, Semnan University of Medical Science, Semnan, Iran
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Ahmadi E, Kakavandi B, Azari A, Izanloo H, Gharibi H, Mahvi AH, Javid A, Hashemi SY. The performance of mesoporous magnetite zeolite nanocomposite in removing dimethyl phthalate from aquatic environments. Desalination and Water Treatment 2016. [DOI: 10.1080/19443994.2016.1178174] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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Ahmadi E, Gholami M, Farzadkia M, Nabizadeh R, Azari A. Study of moving bed biofilm reactor in diethyl phthalate and diallyl phthalate removal from synthetic wastewater. Bioresour Technol 2015; 183:129-35. [PMID: 25727760 DOI: 10.1016/j.biortech.2015.01.122] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [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: 11/24/2014] [Revised: 01/22/2015] [Accepted: 01/28/2015] [Indexed: 05/06/2023]
Abstract
Phthalic acid esters have received significant attention over the last few years since they are considered as priority pollutants. In this study, effects of different operation conditions including hydraulic retention time, phthalates loading rates and aeration rate on process performance of moving bed biofilm reactor (MBBR) for removing diethyl phthalate (DEP) and diallyl phthalate (DAP) from synthetic wastewater was evaluated. In optimum conditions, 94.96% and 93.85% removal efficiency were achieved for DEP and DAP, respectively. Moreover, MBBR achieved to remove more than 92% of COD for both phthalates. The results showed that DEP had a higher biodegradation rate compared to DAP, according to the selected parameters such as half saturation constant, overall reaction rate and maximum specific growth rate. The Grau second order model found as the best model for predicting MBBR performance due to its high correlation coefficients and more conformity of its kinetic coefficients to the results.
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Affiliation(s)
- Ehsan Ahmadi
- Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mitra Gholami
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
| | - Mahdi Farzadkia
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Ramin Nabizadeh
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Azari
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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Azari A, Kalantary RR, Ghanizadeh G, Kakavandi B, Farzadkia M, Ahmadi E. Iron–silver oxide nanoadsorbent synthesized by co-precipitation process for fluoride removal from aqueous solution and its adsorption mechanism. RSC Adv 2015. [DOI: 10.1039/c5ra17595j] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
Abstract
Fe–Ag magnetic binary oxide nanoparticles (Fe–Ag MBON) are prepared with co-precipitation of ferric and ferrous chloride solutions, and used for the adsorption of fluoride from aqueous solution.
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Affiliation(s)
- Ali Azari
- Department of Environmental Health Engineering
- School of Public Health
- Tehran University of Medical Sciences
- Tehran
- Iran
| | - Roshanak Rezaei Kalantary
- Department of Environmental Health Engineering
- School of Public Health
- Iran University of Medical Sciences
- Tehran
- Iran
| | - Ghader Ghanizadeh
- Health Research Center
- Baqiyatallah University of Medical Sciences
- Tehran 1471613151
- I. R. Iran
| | - Babak Kakavandi
- Department of Environmental Health Engineering
- School of Public Health, Ahvaz
- Jundishapur University of Medical Sciences
- Ahvaz
- Iran
| | - Mahdi Farzadkia
- Department of Environmental Health Engineering
- School of Public Health
- Iran University of Medical Sciences
- Tehran
- Iran
| | - Ehsan Ahmadi
- Department of Environmental Health Engineering
- School of Public Health
- Tehran University of Medical Sciences
- Tehran
- Iran
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Hosseinzadeh N, Kazem H, Ghahremannejad M, Ahmadi E, Kazem N. Comparison of API650-2008 provisions with FEM analyses for seismic assessment of existing steel oil storage tanks. J Loss Prev Process Ind 2013. [DOI: 10.1016/j.jlp.2013.01.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [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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Shirazi A, Derakhshan-Horeh M, Pilvarian AA, Ahmadi E, Nazari H, Heidari B. Effect of Pre-Treatment of Ovine Sperm on Male Pronuclear Formation and Subsequent Embryo Development Following Intracytoplasmic Sperm Injection. Reprod Domest Anim 2011; 46:87-94. [DOI: 10.1111/j.1439-0531.2010.01593.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Syed F, Ahmadi E, Iqbal S, Singh S, McGrouther D, Bayat A. Fibroblasts from the growing margin of keloid scars produce higher levels of collagen I and III compared with intralesional and extralesional sites: clinical implications for lesional site-directed therapy. Br J Dermatol 2010; 164:83-96. [DOI: 10.1111/j.1365-2133.2010.10048.x] [Citation(s) in RCA: 119] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Jalali F, Ahmadi E, Roushani M, Bahrami G, Shamsipur M. Amperometric Determination of Cholesterol-Reducing Drug, Ezetimibe, Using Glassy Carbon Electrode Modified with Multiwalled Carbon Nanotubes and Sodium Dodecylsulfate. ANAL LETT 2010. [DOI: 10.1080/00032710903502173] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Shirazi A, Soleimani M, Karimi M, Nazari H, Ahmadi E, Heidari B. Vitrification of in vitro produced ovine embryos at various developmental stages using two methods. Cryobiology 2009; 60:204-10. [PMID: 19919830 DOI: 10.1016/j.cryobiol.2009.11.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [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: 06/18/2009] [Revised: 11/09/2009] [Accepted: 11/09/2009] [Indexed: 11/19/2022]
Abstract
This study was conducted to evaluate the effects of developmental stage of in vitro produced (IVP) ovine embryos and the type of vitrification procedure used on embryo cryotolerance. The IVP embryos were vitrified at five different developmental stages: 4-, 8- and 16-cell, morula, and blastocyst. For each stage, half of the embryos were vitrified in either 30 microl 3.4M glycerol+4.6M ethylene glycol in straw (method 1) or in <0.1 microl 2.7 M ethylene glycol+2.1 M Me(2)SO+0.5M sucrose placed on the inner surface of a straw (method 2) of vitrification solution, based on two different procedures. After warming embryo viability was determined by assessing the rates of re-expansion, survival, and blastocyst formation. The quality of surviving embryos was evaluated by their hatching rate and blastocyst cell numbers. In both vitrification methods, embryo survival progressively increased as the developmental stage progressed. In method 1 few of the early cleavage stage embryos (4-, 8- and 16-cell) could reach to the blastocyst stage following warming. There was no significant difference in blastocyst cell numbers (total, ICM, and trophectoderm cells) or hatching rate of blastocysts derived from vitrified embryos at different developmental stages. The number of dead cells in vitrified blastocysts in method 1 was higher than for non-vitrified blastocysts (P<0.05). The number of apoptotic cells in vitrified blastocysts was higher than for non-vitrified counterparts (P<0.05). In conclusion, both the developmental stage of IVP ovine embryos and the method of vitrification have a significant effect on the viability and developmental competence of sheep embryos.
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Affiliation(s)
- A Shirazi
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada.
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Mohamadnia Z, Ahmadi E, Rafienia M, Mirzadeh H, Mobedi H. Erratum: Investigation of drug release and 1
H-NMR analysis of the in situ forming systems based on poly(lactide-co-glycolide). POLYM ADVAN TECHNOL 2009. [DOI: 10.1002/pat.1446] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Shirazi A, Shams-Esfandabadi N, Ahmadi E, Heidari B. Effects of Growth Hormone on Nuclear Maturation of Ovine Oocytes and Subsequent Embryo Development. Reprod Domest Anim 2008; 45:530-6. [DOI: 10.1111/j.1439-0531.2008.01290.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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