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Moghadam MT, Shariati A, Mirkalantari S, Karmostaji A. The complex genetic region conferring transferable antibiotic resistance in multidrug-resistant and extremely drug-resistant Klebsiella pneumoniae clinical isolates. New Microbes New Infect 2020; 36:100693. [PMID: 32670591 PMCID: PMC7339125 DOI: 10.1016/j.nmni.2020.100693] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 05/06/2020] [Accepted: 05/07/2020] [Indexed: 12/16/2022] Open
Abstract
Antibiotic resistance due to transferable resistance genes is one of the most important concerns in Klebsiella pneumoniae isolated from nosocomial infections. Eighty-eight K. pneumoniae isolates were confirmed through biochemical methods. In addition, antimicrobial susceptibility testing was performed using a disc-diffusion method. Extended-spectrum β-lactamase production among the isolates was screened using a double-disc synergism test, and the resistance genes were identified using PCR. The eight loci for multiple-locus variable number tandem repeat analysis (MLVA) genotyping were selected along with the primers. According to our findings, neomycin (5; 5.6%) and carbapenems (10; 11.3%) showed the most remarkable inhibitory effect but co-trimoxazole (46; 52.2%) was the least effective antibiotic against K. pneumoniae isolates. bla CTX-M-1 , qnrA, qnrB, qnrS, intI, intII, aac3 and aac6 were detected in 30 (34%), 5 (5.6%), 29 (32.9%), 23 (26.1%), 88 (100%), 72 (81.8%), 26 (29.5%) and 28 (31.8%) of the 88 isolates, respectively. But none of the K. pneumoniae isolates expressed the intIII gene. Using MLVA, 23 MLVA types and eight clusters were identified. Extended-spectrum β-lactamase-producing K. pneumoniae isolates were classified into two clonal complexes. Effective strategies for infection control should be applied to monitor and control the spread of multidrug-resistant isolates by the resistance genes located on the mobile genetic elements.
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Affiliation(s)
- M T Moghadam
- PhD student of bacteriology, Faculty of Medicine, Microbiology Department, Iran University of Medical Sciences, Tehran, Iran.,Student Research Committee, Iran University of Medical Sciences, Tehran, Iran
| | - A Shariati
- PhD student of bacteriology, Faculty of Medicine, Microbiology Department, Iran University of Medical Sciences, Tehran, Iran.,Student Research Committee, Iran University of Medical Sciences, Tehran, Iran
| | - S Mirkalantari
- Assistant Professor in Microbiology, Faculty of Medicine, Microbiology Department, Iran University of Medical Sciences, Tehran, Iran
| | - A Karmostaji
- Infectious and Tropical Diseases Research Center, Hormozgan Health Institute, University of Medical Sciences, Bandar Abbas, Iran
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Mahmoudi E, Hafizi A, Rahimpour M, Bolhasani A, Shariati A. Inhibition effect of CeO2 promoted SiO2 coating on coke growth during steam cracking of ethane. Chem Eng Res Des 2018. [DOI: 10.1016/j.cherd.2018.05.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Mohayeji M, Farsi M, Rahimpour M, Shariati A. Modeling and operability analysis of water separation from crude oil in an industrial gravitational coalescer. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2015.10.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abbasi M, Farniei M, Rahimpour MR, Shariati A. Hydrogen production in an environmental-friendly process by application of chemical looping combustion via Ni- and Fe-Based oxygen carriers. Theor Found Chem Eng 2015. [DOI: 10.1134/s0040579515060019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Mohammadzadeh S, Olya ME, Arabi AM, Shariati A, Khosravi Nikou MR. Synthesis, characterization and application of ZnO-Ag as a nanophotocatalyst for organic compounds degradation, mechanism and economic study. J Environ Sci (China) 2015; 35:194-207. [PMID: 26354709 DOI: 10.1016/j.jes.2015.03.030] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [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: 11/17/2014] [Revised: 03/01/2015] [Accepted: 03/02/2015] [Indexed: 05/12/2023]
Abstract
The current work deals with ZnO-Ag nanocomposites (in the wide range of x in the Zn1-xO-Agx chemical composition) synthesized using microwave assisted solution combustion method. The structural, morphological and optical properties of the samples were characterized by XRD (X-ray diffraction), FTIR (Fourier transform infrared spectrometry), SEM (scanning electron microscopy technique), EDX (energy dispersive X-ray spectrum), ICP (inductively coupled plasma technique), TEM (transmission electron microscopy), BET (Brunauer-Emmett-Teller method), UV-Vis (ultraviolet-visible spectrophotometer) and photoluminescence spectrophotometer. The photocatalytic activity of the ZnO-Ag was investigated by photo-degradation of Acid Blue 113 (AB 113) under UV illumination in a semi-batch reactor. This experiment showed that ZnO-Ag has much more excellent photocatalytic properties than ZnO synthesized by the same method. The enhanced photocatalytic activity was due to the decrease in recombination of photogenerated electron-holes. The results showed the improvement of ZnO photocatalytic activity and there is an optimum amount of Ag (3.5mol%) that needs to be doped with ZnO. The effect of operating parameters such as pH, catalyst dose and dye concentration were investigated. The reaction byproducts were identified by LC/MS (liquid chromatography/mass spectrometry) analysis and a pathway was proposed as well. Kinetic studies indicated that the decolorization process follows the first order kinetics. Also, the degradation percentage of AB 113 was determined using a total organic carbon (TOC) analyzer. Additionally, cost analysis of the process, the mechanism and the role of Ag were discussed.
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Affiliation(s)
- S Mohammadzadeh
- Gas Engineering Department, Petroleum University of Technology, Ahwaz, Iran
| | - M E Olya
- Department of Environmental Research, Institute for Color Science and Technology, Tehran, Iran.
| | - A M Arabi
- Department of Nanomaterials and Nanocoatings, Institute for Color Science and Technology, Tehran, Iran
| | - A Shariati
- Gas Engineering Department, Petroleum University of Technology, Ahwaz, Iran
| | - M R Khosravi Nikou
- Gas Engineering Department, Petroleum University of Technology, Ahwaz, Iran
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Ahmadi M, Jahani S, Poormansouri S, Shariati A, Tabesh H. The Effectiveness of self management program on quality of life in patients with sickle cell disease. Iran J Ped Hematol Oncol 2015; 5:18-26. [PMID: 25914799 PMCID: PMC4402153] [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: 07/23/2014] [Accepted: 11/25/2014] [Indexed: 11/09/2022]
Abstract
BACKGROUND Sickle cell patients suffer from many physical, psychological, and social problems that can affect their quality of life. To deal with this chronic condition and manage their disease and prevent complications associated with the disease, they must learn skills and behaviours. The aim of this study was to determine the effectiveness of self-management programs on quality of life in these patients. MATERIAL AND METHODS Samples of this quasi-experimental study, which included 69 patients with sickle cell disease referring to the Thalassemia Clinic of Shafa Hospital, were entered into the study by census method. Patients received a self-management program using the 5A model for 12 weeks, while their quality of life before the intervention were assessed at the twelfth week and thirty-sixth week using SF-36 questionnaire. Data were analyzed by descriptive statistics, paired t-test, Wilcoxon test, Hotelling's T2, and repeated measures test. RESULTS The eight dimensions and the total QoL score after intervention were significantly increased compared to those before the intervention (P<0.001). Repeated measures test showed that the mean score of eight QoL dimensions and the total QoL score decreased in the thirty-sixth week, compared to twelfth week. However, it was significantly enhanced in comparison with the intervention baseline (P<0.05). CONCLUSIONS Current study revealed the efficacy of self-management interventions on the quality of life in patients with sickle cell disease. Therefore, application of this supportive method could be useful to empower the patients and help them to manage the disease.
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Affiliation(s)
- M Ahmadi
- Lecturer in Nursing and Midwifery, Department of Nursing, Nursing and Midwifery School, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, I.R. Iran.
| | - S Jahani
- Lecturer in Nursing and Midwifery, Department of Nursing, Nursing and Midwifery School, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, I.R. Iran.
| | - S Poormansouri
- MS.c student in Nursing, Department of Nursing, Nursing and Midwifery School, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, I.R. Iran
| | - A Shariati
- Lecturer in Nursing and Midwifery, Department of Nursing, Nursing and Midwifery School, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, I.R. Iran.,Corresponding Author: Shariati A, Nursing and Midwifery School, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, I.R. Iran. E-mail address:
| | - H Tabesh
- Assistant Professor in Biostatistics and Epidemiology, Department of Biostatistics and Epidemiology, Faculty of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, I.R. Iran
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Shariati A, Jahani S, Hooshmand M, Khalili N. The effect of acupressure on sleep quality in hemodialysis patients. Complement Ther Med 2012; 20:417-23. [PMID: 23131372 DOI: 10.1016/j.ctim.2012.08.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2011] [Revised: 07/18/2012] [Accepted: 08/03/2012] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE Our purpose was to investigate the effects of acupressure on sleep quality in hemodialysis patients. DESIGN Randomized clinical trial. SETTING The setting of the study was dialysis wards located in two university hospitals (Imam and Golestan) in Ahvaz, Iran. INTERVENTIONS 48 end-stage renal disease patients on hemodialysis who scored 5 points or higher on the Pittsburgh Sleep Quality Index (PSQI) were enrolled to the study. Acupressure group received acupressure intervention on the Shenmen (He7) and He Gu (Li4) points in the hands and Sanyingjao (sp6) point in the feet for 4 weeks beside routine care and control group received only routine care. MAIN OUTCOME MEASURES subjective sleep quality, latency and duration, habitual sleep efficiency; sleep disturbances, daytime functional status, and use of sleeping medications. RESULTS The result indicated significant differences between the acupressure group and the control group after intervention in PSQI global scores (p<0.001) and all sleep quality indices between two groups after intervention: subjective sleep quality (p<0.001), sleep latency (p<0.001), sleep duration (p<0.001), sleep efficiency (p=0.006), sleep disturbance (p<0.001), the use of sleeping medication (p=0.028), and daytime dysfunction (p<0.001). CONCLUSION This study supports the effectiveness of acupressure in improving sleep quality of end-stage renal disease patients as a noninvasive therapy.
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Affiliation(s)
- A Shariati
- Medical and Surgical Department, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Casimiro T, Montilla F, Garcia S, Avilés T, Raeissi S, Shariati A, Peters C, Nunes da Ponte M, Aguiar-Ricardo A. Phase behaviour of the catalyst dicarbonyl(η5-cyclopentadienyl)-cobalt in carbon dioxide. J Supercrit Fluids 2004. [DOI: 10.1016/j.supflu.2003.09.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Shariati A, Peters C. High-pressure phase behavior of systems with ionic liquids: II. The binary system carbon dioxide+1-ethyl-3-methylimidazolium hexafluorophosphate. J Supercrit Fluids 2004. [DOI: 10.1016/s0896-8446(03)00032-9] [Citation(s) in RCA: 163] [Impact Index Per Article: 8.2] [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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Shariati A, Aghamohammadi A, Khorrami M. Autonomous multispecies reaction-diffusion systems with more-than-two-site interactions. Phys Rev E Stat Nonlin Soft Matter Phys 2001; 64:066102. [PMID: 11736231 DOI: 10.1103/physreve.64.066102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2001] [Indexed: 05/23/2023]
Abstract
Autonomous multispecies systems with more-than-two-neighbor interactions are studied. Conditions necessary and sufficient for the closedness of the evolution equations of the n-point functions are obtained. The average numbers of the particles at each site for one species and three-site interactions, and its generalization to the more-than-three-site interactions, are explicitly obtained. Generalizations of the Glauber model in different directions, using generalized rates, generalized numbers of states at each site, and generalized numbers of interacting sites, are also investigated.
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Affiliation(s)
- A Shariati
- Institute for Advanced Studies in Basic Sciences, P. O. Box 159, Zanjan 45195, Iran.
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Aghamohammadi A, Fatollahi AH, Khorrami M, Shariati A. Multispecies reaction-diffusion systems. Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics 2000; 62:4642-9. [PMID: 11089003 DOI: 10.1103/physreve.62.4642] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2000] [Indexed: 11/07/2022]
Abstract
Multispecies reaction-diffusion systems, for which the time evolution equations of correlation functions become a closed set, are considered. A formal solution for the average densities is found. Some special interactions and the exact time dependence of the average densities in these cases are also studied. For the general case, the large-time behavior of the average densities has also been obtained.
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Affiliation(s)
- A Aghamohammadi
- Department of Physics, Alzahra University, Tehran 19834, Iran and Institute for Studies in Theoretical Physics and Mathematics, P.O. Box 5531, Tehran 19395, Iran
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