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Moeini S, Mohebbi A, Farahmand B, Mehrbod P, Fotouhi F. Phylogenetic analysis and docking study of neuraminidase gene of influenza A/H1N1 viruses circulating in Iran from 2010 to 2019. Virus Res 2023; 334:199182. [PMID: 37490957 PMCID: PMC10407273 DOI: 10.1016/j.virusres.2023.199182] [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: 02/06/2023] [Revised: 07/22/2023] [Accepted: 07/22/2023] [Indexed: 07/27/2023]
Abstract
Influenza A viruses (H1N1) have been consistently one of the most evolving viruses that escape from vaccine-induced immunity. Although there has been a rapid rise in human influenza virus knowledge since the 2009 pandemic, the molecular information about Iranian strains is still inadequate. The aim of this study was to analyze the neuraminidase (NA) segment of the Iranian isolates in terms of phylogenetic, antiviral resistance, and vaccine efficiency. Ninety-three NA sequences collected among 1758 nasopharyngeal swab samples during the 2015-2016 influenza season were sequenced and submitted to NCBI. Moreover, all the submitted Iranian influenza H1N1 NA sequences since 2010 till 2019 were included in the study. Software including MEGA-X, MODELLER, UCSF ChimeraX, Auto-Dock 4.2, and other online tools were used to analyze the phylogenetic relationship, vaccine efficiency, and binding affinity to sialic acid of the selected NA proteins. Moreover, the information about antiviral drug resistance mutations of NA were gathered and compared to the Iranian NA segments to check the presence of antiviral drug-resistant strains. The phylogenetic study showed that most Iranian NA sequences (between 2015 and 2016) were located in a single clade and following years were located in its subclade by 3 major mutations (G77R/K, V81A, and J188T). Resistant mutations in drug targets of NA including I117M, D151E, I223V, and S247N were ascertained in 10 isolates during the 2015-2016 flu seasons. Investigation of vaccination effect revealed that Iranian isolates in 2017 and 2018 were best matched to A/Brisbane/02/2018 (H1N1), and in 2019 to A/Guangdong-Maonan/SWL1536/2019 (H1N1). Furthermore, we performed an in-silico analysis of NA enzymatic activity of all Iranian sequences by assessment of enzyme stability, ligand affinity, and active site availability. Overall, the enzyme activity of four Iranian strains (AUG84119, AUG84157, AUG84095, and AUG84100) was assumed as the maximum enzyme activity. This study highlighted the evolutionary trend of influenza A virus/H1N1 circulating in Iran, which provides a preliminary viewpoint for a better comprehension of new emerging strains' virulence and thus, more appropriate monitoring of influenza virus A/H1N1 during each outbreak season.
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Affiliation(s)
- Sina Moeini
- Influenza and Respiratory Viruses Department, Pasteur Institute of Iran, Tehran, Iran
| | - Atefeh Mohebbi
- Influenza and Respiratory Viruses Department, Pasteur Institute of Iran, Tehran, Iran
| | - Behrokh Farahmand
- Influenza and Respiratory Viruses Department, Pasteur Institute of Iran, Tehran, Iran
| | - Parvaneh Mehrbod
- Influenza and Respiratory Viruses Department, Pasteur Institute of Iran, Tehran, Iran
| | - Fatemeh Fotouhi
- Influenza and Respiratory Viruses Department, Pasteur Institute of Iran, Tehran, Iran.
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Parvaneh L, Sharifi N, Azizi G, Abolhassani H, Sharifi L, Mohebbi A, Bahraminia E, Delavari S, Alebouyeh M, Tajeddin E, Mohebbi SR, Yazdani R, Behniafard N, Aghamohammadi A. Infectious etiology of chronic diarrhea in patients with primary immunodeficiency diseases. Eur Ann Allergy Clin Immunol 2018; 51:32-37. [PMID: 30417635 DOI: 10.23822/eurannaci.1764-1489.77] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Summary Background.Primary immunodeficiency diseases (PIDs) are life-threatening disorders, which manifest commonly with gastrointestinal (GI) signs, mainly as chronic diarrhea. Objective. To investigate and compare infectious etiology of chronic diarrhea in different PIDs. Patients and methods. Assessing clinical features, obtaining immunological profiles, as well as characterizing infectious etiology of diarrhea were performed in 38 PID patients with chronic diarrhea. Stool samples and/or biopsy specimens were checked using culture, microscopic examination, RT-PCR, and PCR, as appropriate. The patients were diagnosed to have common variable immunodeficiency (CVID), severe combined immunodeficiency (SCID), X-linked agammaglobulinemia (XLA), and hyper-IgM (HIgM) syndrome. Results. In 32 patients we identified 41 infectious agents including 16 parasitic (39.0%, the most common Giardia lamblia), 11 bacterial (26.8%, the most common salmonella spp), 8 viral (19.5%, the most frequent group A rotavirus), and 6 fungal organisms (14.7%, the most common Candida albicans). From 6 of the patients, no infectious agent was isolated. In CVID bacteria and parasites, in SCID bacteria and viruses, in XLA parasites, and in individuals with HIgM syndrome parasites were the leading causes of chronic diarrhea. Infection with giardia and cryptosporidium were more frequent in XLA and HIgM, respectively. Conclusion. The current study suggests considering both usual and unusual pathogens in laboratory investigation and in the empiric treatment of chronic diarrhea. Opportunistic pathogens should be taken into account when no other pathogen is identified, especially in patients on long-term treatment or prophylaxis with antifungals/antibiotics and in those from geographical locations that favor pathogenicity of these organisms.
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Affiliation(s)
- L Parvaneh
- Department of Biology, Central Tehran Branch, Islamic Azad University, Tehran, Iran. Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - N Sharifi
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - G Azizi
- Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - H Abolhassani
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - L Sharifi
- Uro-Oncology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - A Mohebbi
- Growth and Development Research Centre, Paediatrics Centre of Excellence, Children's Medical Centre, Tehran University of Medical Sciences, Tehran, Iran
| | - E Bahraminia
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - S Delavari
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - M Alebouyeh
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - E Tajeddin
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - S R Mohebbi
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - R Yazdani
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - N Behniafard
- Department of Pediatrics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - A Aghamohammadi
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
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Mohebbi A, Fotouhi F, Jamali A, Yaghobi R, Farahmand B, Mohebbi R. Molecular epidemiology of the hemagglutinin gene of prevalent influenza virus A/H1N1/pdm09 among patient in Iran. Virus Res 2018; 259:38-45. [PMID: 30336188 DOI: 10.1016/j.virusres.2018.10.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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: 08/08/2018] [Revised: 10/01/2018] [Accepted: 10/02/2018] [Indexed: 11/17/2022]
Abstract
In 2015, the influenza virus A/H1N1/pdm09 strain outbreak became prevalent throughout the different provinces of Iran. There are relatively limited complete genetic sequences available for this virus from Asian countries. Diagnosis and virological surveillance of influenza is essential for detecting novel genetic variants causing epidemic potential. This study describes the genetic properties of HA genome of influenza A/H1N1 pdm09 viruses circulating in Iran during the 2015/2016 season. In order to investigate the genetic pattern of influenza A/H1N1 pdm09, a total of 1758 nasopharyngeal swabs were screened by real-time RT-PCR. Of those, 510 cases were found to be positive for A/H1N1/pdm09 virus. Evolution of the approximately 100 positive specimens with high virus load was conducted via genomic phylogeny. Phylogenetic analysis of the HA genes of the A/H1N1pdm09 viruses revealed the circulation of clade 6B1, characterized by amino acid substitutions S84N, S162N and I216T, where position 162 became glycosylated. The N-glycosylation of HA protein is post or co-translational modification that affect the evolution of influenza viruses. For influenza A(H1N1) pdm09 viruses, we found more mutations in the antigenic sites than in the stem region. The results of this study confirmed the necessity of constant regular antigenic and molecular surveillance of circulating seasonal influenza viruses.
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Affiliation(s)
- Atefeh Mohebbi
- Department of Microbiology, College of Science Agriculture and Modern Technology, Shiraz Branch, Islamic Azad University, Shiraz, Iran.
| | - Fatemeh Fotouhi
- Department of Influenza and other Respiratory Viruses, Pasteur Institute of Iran, Tehran, Iran.
| | - Abbas Jamali
- Department of Influenza and other Respiratory Viruses, Pasteur Institute of Iran, Tehran, Iran.
| | - Ramin Yaghobi
- Shiraz Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Behrokh Farahmand
- Department of Influenza and other Respiratory Viruses, Pasteur Institute of Iran, Tehran, Iran.
| | - Reza Mohebbi
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Abolghasemi Mahani A, Motahari S, Mohebbi A. Sol-gel derived flexible silica aerogel as selective adsorbent for water decontamination from crude oil. Mar Pollut Bull 2018; 129:438-447. [PMID: 29029980 DOI: 10.1016/j.marpolbul.2017.10.012] [Citation(s) in RCA: 20] [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] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 10/04/2017] [Accepted: 10/05/2017] [Indexed: 06/07/2023]
Abstract
Oil spills are the most important threat to the sea ecosystem. The present study is an attempt to investigate the effects of sol-gel parameters on seawater decontamination from crude oil by use of flexible silica aerogel. To this goal, methyltrimethoxysilane (MTMS) based silica aerogels were prepared by two-step acid-base catalyzed sol-gel process, involving ambient pressure drying (APD) method. To investigate the effects of sol-gel parameters, the aerogels were prepared under two different acidic and basic pH values (i.e. 4 and 8) and varied ethanol/MTMS molar ratios from 5 to 15. The adsorption capacity of the prepared aerogels was evaluated for two heavy and light commercial crude oils under multiple adsorption-desorption cycles. To reduce process time, desorption cycles were carried out by using roll milling for the first time. At optimum condition, silica aerogels are able to uptake heavy and light crude oils with the order of 16.7 and 13.7, respectively.
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Affiliation(s)
- A Abolghasemi Mahani
- School of Chemical Engineering, Faculty of Engineering, University of Tehran, P. O. Box: 11365/4563, Tehran, Iran
| | - S Motahari
- School of Chemical Engineering, Faculty of Engineering, University of Tehran, P. O. Box: 11365/4563, Tehran, Iran
| | - A Mohebbi
- Department of Chemical Engineering, Faculty of Engineering, Shahid Bahonar University of Kerman, Kerman, Iran.
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Ghorbani M, Saei-Dehkordi S, Mohebbi A, Pak A. Corrigendum to “Evaluation of Some Chemical Quality Characteristics of Honey Produced in Iran” [Journal of Food Quality and Hazards Control 4 (2017) 113-118]. J Food Qual Hazards Control 2018. [DOI: 10.29252/jfqhc.5.1.37] [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: 10/31/2022] Open
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Abstract
BACKGROUND Cephalic malposition of the lower lateral cartilage (CMLLC) is a relatively common anatomical variant, particularly in Middle Eastern patients. The characteristics of CMLLC include long alar creases, a boxy and ball-shaped nasal tip, parenthesis tip deformity and external valvular incompetence. The gold standard for correcting CMLLC is the lateral crural strut graft (Gunter graft), but many patients experience problems after this technique. OBJECTIVE To evaluate the efficacy of the repositioned lateral crural flap (RLCF) technique in correcting CMLLC, and to discuss the cosmetic and functional results. METHODS In the present study, 123 primary septorhinoplasty operations using the RLCF technique were performed between May 2012 and March 2013. The mean follow-up period was 11.4 months (range nine to 24 months). Four parameters were measured and compared pre- and postoperatively: the angle between the line connecting the maximum convexity of the lower lateral cartilage (LLC) to the tip-defining point and midline on each side (angle of rotation); the total distance between the maximum convexity of LLC right and left to midline (representing the size of the parenthesis deformity); satisfaction scale rating of the patients' nasal tip appearance; and the satisfaction scale rating of patients' breathing through their nostrils. RESULTS The mean angle of the LLC to the midline significantly increased and the mean distance between the maximum convexities was significantly reduced, indicating correction of the malposition and reduction of the parenthesis deformity, respectively. The mean satisfactory scale ratings of nasal tip appearance and breathing quality were also significantly improved. CONCLUSION CMLLC can be corrected using the RLCF technique, resulting in both aesthetic and functional improvements.
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Affiliation(s)
- A Mohebbi
- Rhinology and Facial Plastic Division, Otolaryngology Department and Research Center, Rasoul Akram medical Complex; Iran University of Medical Sciences, Tehran, Iran
| | - A Azizi
- Rhinology and Facial Plastic Division, Otolaryngology Department and Research Center, Rasoul Akram medical Complex; Iran University of Medical Sciences, Tehran, Iran
| | - S Tabatabaiee
- Rhinology and Facial Plastic Division, Otolaryngology Department and Research Center, Rasoul Akram medical Complex; Iran University of Medical Sciences, Tehran, Iran
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Abstract
Background Cephalic malposition of the lower lateral cartilage (CMLLC) is a relatively common anatomical variant, particularly in Middle Eastern patients. The characteristics of CMLLC include long alar creases, a boxy and ball-shaped nasal tip, parenthesis tip deformity and external valvular incompetence. The gold standard for correcting CMLLC is the lateral crural strut graft (Gunter graft), but many patients experience problems after this technique. Objective To evaluate the efficacy of the repositioned lateral crural flap (RLCF) technique in correcting CMLLC, and to discuss the cosmetic and functional results. Methods In the present study, 123 primary septorhinoplasty operations using the RLCF technique were performed between May 2012 and March 2013. The mean follow-up period was 11.4 months (range nine to 24 months). Four parameters were measured and compared pre- and postoperatively: the angle between the line connecting the maximum convexity of the lower lateral cartilage (LLC) to the tip-defining point and midline on each side (angle of rotation); the total distance between the maximum convexity of LLC right and left to midline (representing the size of the parenthesis deformity); satisfaction scale rating of the patients' nasal tip appearance; and the satisfaction scale rating of patients' breathing through their nostrils. Results The mean angle of the LLC to the midline significantly increased and the mean distance between the maximum convexities was significantly reduced, indicating correction of the malposition and reduction of the parenthesis deformity, respectively. The mean satisfactory scale ratings of nasal tip appearance and breathing quality were also significantly improved. Conclusion CMLLC can be corrected using the RLCF technique, resulting in both aesthetic and functional improvements.
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Affiliation(s)
- A Mohebbi
- Rhinology and Facial Plastic Division, Otolaryngology Department and Research Center, Rasoul Akram medical Complex; Iran University of Medical Sciences, Tehran, Iran
| | - A Azizi
- Rhinology and Facial Plastic Division, Otolaryngology Department and Research Center, Rasoul Akram medical Complex; Iran University of Medical Sciences, Tehran, Iran
| | - S Tabatabaiee Md
- Rhinology and Facial Plastic Division, Otolaryngology Department and Research Center, Rasoul Akram medical Complex; Iran University of Medical Sciences, Tehran, Iran
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Sharifi A, Mohebbi A. Introducing a new formula based on an artificial neural network for prediction of droplet size in venturi scrubbers. Braz J Chem Eng 2012. [DOI: 10.1590/s0104-66322012000300012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- A. Sharifi
- Shahid Bahonar University of Kerman, Iran
| | - A. Mohebbi
- Shahid Bahonar University of Kerman, Iran
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Pourdanesh F, Sharifi R, Mohebbi A, Jamilian A. Effects of maxillary advancement and impaction on nasal airway function. Int J Oral Maxillofac Surg 2012; 41:1350-2. [PMID: 22542078 DOI: 10.1016/j.ijom.2012.03.024] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2011] [Revised: 01/05/2012] [Accepted: 03/23/2012] [Indexed: 10/28/2022]
Abstract
The effects of Le Fort I osteotomy on the nasal airway are controversial. This study aimed to evaluate nasal airway changes after Le Fort I. 25 patients underwent conventional Le Fort I osteotomy and were separated into three groups depending on the type of surgery they underwent. 11 patients needed maxillary impaction, 9 underwent maxillary advancement, and 5 had both maxillary impaction and advancement. Rhinological examinations, anterior rhinomanometry and acoustic rhinometry were carried out 1 week before surgery and 3 months after that. Wilcoxon and χ(2) tests were used for data analysis. The samples included 19 females and 6 males with a mean age of 22.4 ± 3.32 years. Rhinomanometric assessment showed that total nasal airflow was increased from 406 ± 202 ml/s to 543 ± 268 ml/s in all three groups. Significant decrease in nasal airway resistance was seen in all three groups. Acoustic rhinometry revealed a significant decrease in total nasal volume but an increase in the cross-sectional areas of isthmus nasi (IN) and inferior concha. The rhinomanometric measurements showed improvements in the total nasal airflow after Le Fort I osteotomy with alar base cinch suture in cases where the impaction was not higher than 5.5mm.
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Affiliation(s)
- F Pourdanesh
- Department of Oral & Maxillofacial Surgery, School of Dentistry, Shahid Beheshti, Tehran, Iran
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Nesbitt-Hawes E, Campbell N, Won H, Maley P, Henry A, Abbott J, Potdar N, Mason-Birks S, Elson CJ, Gelbaya TA, Nardo LG, Stavroulis A, Nnoaham K, Hummelshoj L, Zondervan K, Saridogan E, GSWH Consortium WERF, Chamie LP, Soares ACP, Kimati CT, Gomes C, Fettback P, Riboldi M, Serafini P, Lalitkumar S, Menezes J, Evdokia D, Gemzell-Danielsson K, Lalitkumar PGL, Bailey J, Newman TA, Johnston A, Zisimopoulou K, White M, Sadek K, Shreeve N, Macklon N, Cheong Y, Al-Akoum M, Akoum A, Giles J, Garrido N, Vidal C, Mondion M, Gallo C, Ramirez J, Pellicer A, Remohi J, Ghosh S, Chattopadhyay R, Jana S, Goswami SK, Bose G, Chakravarty M, Chowdhuri K, Chakravarty BN, Kendirci Ceviren A, Ozcelik Tanriverdi N, Urfan A, Donmez L, Isikoglu M, Romano A, Schreinemacher MH, Backes WH, Slenter JM, Xanthoulea SA, Delvoux B, van Winden L, Beets-Tan RG, Evers JLH, Dunselman GAJ, Jana SK, Chaudhury K, Chattopadhyay R, Chakravarty BN, Maruyama T, Yamasaki A, Miyazaki K, Arase T, Uchida H, Yoshimura Y, Kaser D, Ginsburg E, Missmer S, Correia K, Racowsky C, Streuli I, Chouzenoux S, de Ziegler D, Chereau C, Weill B, Chapron C, Batteux F, Arianmanesh M, Fowler PA, Al-Gubory KH, Urata Y, Osuga Y, Izumi G, Nagai M, Takamura M, Yamamoto N, Saito A, Hasegawa A, Takemura Y, Harada M, Hirata T, Hirota Y, Yoshino O, Koga K, Taketani Y, Mohebbi A, Janan A, Nasri S, Lakpour MR, Ramazanali F, Moini A, Aflatoonian R, Germeyer A, Novak O, Renke T, Jung M, Jackus J, Toth B, Strowitzki T, Bhattacharya J, Mitra A, Kundu S, Pal M, Kundu A, Gumusel A, Basar M, Yaprak E, Aslan E, Arda O, Ilvan S, Kayisli U, Guzel E, Haouzi D, Monzo C, Lehmann S, Hirtz C, Tiers L, Hamamah S, Choi D, Choi J, Jo M, Lee E, Shen X, Wang BIN, Li X, Tamura I, Maekawa R, Asada H, Tamura H, Sugino N, Tamura H, Tamura I, Maekawa R, Asada H, Sugino N, Liu H, Jiang Y, Chen J, Zhu L, Shen X, Wang B, Yan G, Sun H, Coughlan C, Sinagra M, Ledger W, Li TC, Laird SM, Dafopoulos K, Vrekoussis T, Chalvatzas N, Messini CI, Kalantaridou S, Georgoulias P, Messinis IE, Makrigiannakis A, Xue Q, Xu Y, Zuo WL, Zhang L, Shang J, Zhu SN, Bulun SE, Tomassetti C, Geysenbergh B, Meuleman C, Fieuws S, D'Hooghe T, Suginami K, Sato Y, Horie A, Matsumoto H, Fujiwara H, Konishi I, Jung Y, Cho S, Choi Y, Lee B, Seo S, Urman B, Yakin K, Oktem O, Alper E, Taskiran C, Aksoy S, Takeuchi K, Kurematsu T, Yu-ki Y, Fukumoto Y, Homan Y, Sata Y, Kuroki Y, Takeuchi M, Awata S, Muneyyirci-Delale O, Charles C, Anopa J, Osei-Tutu N, Dalloul M, Weedon J, Muney A, Stratton P, Yilmaz B, Kilic S, Aksakal O, Kelekci S, Aksoy Y, Lordlar N, Sut N, Gungor T, Chan J, Tan CW, Lee YH, Tan HH, Choolani M, Griffith L, Oldeweme J, Barcena de Arellano ML, Reichelt U, Schneider A, Mechsner S, Barcena de Arellano ML, Munch S, Vercellino GF, Chiantera V, Schneider A, Mechsner S, Santoro L, D'Onofrio F, Campo S, Ferraro PM, Tondi P, Gasbarrini A, Santoliquido A, Jung MH, Kim HY, Barcena de Arellano ML, Arnold J, Vercellino GF, Chiantera V, Schneider A, Mechsner S, Arnold J, Barcena de Arellano ML, Buttner A, Vercellino GF, Chiantera V, Schneider A, Mechsner S, Karaer A, Celik O, Bay Karabulut A, Celik E, Kiran TR, Simsek OY, Yilmaz E, Turkcuoglu I, Tanrikut E, Alieva K, Kulakova E, Ipatova M, Smolnikova V, Kalinina E. ENDOMETRIOSIS, ENDOMETRIUM, IMPLANTATION AND FALLOPIAN TUBE. Hum Reprod 2012. [DOI: 10.1093/humrep/27.s2.78] [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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Nourozi A, Talebi H, Fateh S, Mohammadzadeh A, Eghtesadi-Araghi P, Ahmadi Z, Savarabadi A, Mohebbi A. Effect of adding ketamine to pethidine on postoperative pain in patients undergoing major abdominal operations: a double blind randomized controlled trial. Pak J Biol Sci 2011; 13:1214-8. [PMID: 21313903 DOI: 10.3923/pjbs.2010.1214.1218] [Citation(s) in RCA: 4] [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] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
To determine the effect of adding ketamine to pethidine in reducing post-operative pain in patients undergoing major abdominal operations, in a double blind randomized controlled trial, 100 patients aged 15-60 years who were candidate for elective major abdominal surgery allocated into two groups of pethidine + ketamine group (5 mg pethidine and 0.25 mg kg(-1) ketamine) or pethidine and placebo group (10 mg pethidine and NS) according to the regimen prescribed in postanesthesia care unit. Severity of pain (using visual analogue scale), prescribed dose of pethidine and side effects were recorded until 24 h after operation. Regarding post-operative pain, pethidine + ketamine group showed significant lower scores in all the times except 0 min, 2, 6 and 16 h. Nausea was significantly less frequent amongst pethidine + placebo group at times of 0, 15, 30 and 45 min (p < 0.05). Comparison of two groups did not show significant differences in prescribed pethedine dose in 0, 9, 12, 16, 20 and 24 h (p > 0.05). Yet, the mean dose of administered pethidine as rescue analgesic was significant lower in pethidine + ketamine group compared to pethidine + placebo group (112 +/- 31.5 mg vs. 133.5 +/- 24.5 mg, p < 0.001). In conclusion, our results showed that co-administration of ketamine and pethidine in postanesthesia care unit will improve postoperative pain and reduce narcotic consumption. It may, however, increase rate of postoperative nausea in the first hour after operation.
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Affiliation(s)
- A Nourozi
- Department of Anesthesiology, Arak University of Medical Sciences, Arak, Iran
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Naghavi A, Salimi S, Firoozrai M, Shafiee S, Mohebbi A. MS278 THE RELEVANCE OF ANGIOTENSIN CONVERTING ENZYME AND ENDOTHELIAL NITRIC OXIDE SYNTHASE GLU298ASP GENE POLYMORPHISMS FOR SUSCEPTIBILITY TO CORONARY ARTERY DISEASE. ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/s1567-5688(10)70779-0] [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: 10/19/2022]
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Salimi S, Firoozrai M, Naghavi A, Shafiee S, Mohebbi A. MS161 PLASMA NITRIC OXIDE CONCENTRATIONS AND NITRIC OXIDE SYNTHASE GENE POLYMORPHISMS IN CORONARY ARTERY DISEASE. ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/s1567-5688(10)70662-0] [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: 11/17/2022]
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Esmaeilzadeh M, Khaledifar A, Maleki M, Sadeghpour A, Samiei N, Moladoust H, Noohi F, Haghighi ZO, Mohebbi A. Evaluation of left ventricular systolic and diastolic regional function after enhanced external counter pulsation therapy using strain rate imaging. European Journal of Echocardiography 2009; 10:120-6. [DOI: 10.1093/ejechocard/jen183] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Nasseh S, Mohebbi A, Jeirani Z, Sarrafi A. Predicting pressure drop in venturi scrubbers with artificial neural networks. J Hazard Mater 2007; 143:144-9. [PMID: 17030418 DOI: 10.1016/j.jhazmat.2006.09.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2006] [Revised: 08/31/2006] [Accepted: 09/02/2006] [Indexed: 05/12/2023]
Abstract
In this study a new approach based on artificial neural networks (ANNs) has been used to predict pressure drop in venturi scrubbers. The main parameters affecting the pressure drop are mainly the gas velocity in the throat of venturi scrubber (V(g)(th)), liquid to gas flow rate ratio (L/G), and axial distance of the venturi scrubber (z). Three sets of experimental data from five different venturi scrubbers have been applied to design three independent ANNs. Comparing the results of these ANNs and the calculated results from available models shows that the results of ANNs have a better agreement with experimental data.
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Affiliation(s)
- S Nasseh
- Department of Chemical Engineering, Faculty of Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
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Baroutian S, Mohebbi A, Goharrizi AS. Measuring and modeling particulate dispersion: a case study of Kerman Cement Plant. J Hazard Mater 2006; 136:468-74. [PMID: 16530948 DOI: 10.1016/j.jhazmat.2006.01.050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2005] [Revised: 01/16/2006] [Accepted: 01/18/2006] [Indexed: 05/07/2023]
Abstract
In this study to identify the origin of PM10 in the atmosphere of Kerman and investigate the dispersion conditions for these particles, the variations of the mass concentration and size distribution of PM10 have been measured. This study is focused on the local environmental impact of Kerman Cement Plant. All samples have been taken in the area between the plant and the city entrance at the wind direction. The result of this research shows that the PM10 concentration in the ambient air in distances about 590-1370 m from the stacks is higher than the WHO guidelines of annual average (260 microg/m(3)). Also, concentration of PM10 is computed by using Gaussian plume model that incorporates source related factors and meteorological factors to estimate pollutant concentration from continuous sources. The performance of this model has been compared with the measured data.
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Affiliation(s)
- S Baroutian
- Department of Chemical Engineering, Faculty of Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
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Abstract
A mathematical model based on Eulerian/Lagrangian method has been developed to predict particle collection efficiency from a gas stream in an orifice scrubber. This model takes into account Eulerian approach for particle dispersion, Lagrangian approach for droplet movement and particle-source-in-cell (PSI-CELL) model for calculating droplet concentration distribution. In order to compute fluid velocity profiles, the normal k-epsilon turbulent flow model with inclusion of body force due to drag force between fluid and droplets has been used. Experimental data of Taheri et al. [J. Air Pollut. Control Assoc. 23 (11) (1973) 963] have been used to test the results of the mathematical model. The results from the model are in good agreement with the experimental data. After validating the model the effect of operating parameters such as liquid to gas flow rate ratio, gas velocity at orifice opening, and particle diameter were obtained on the collection efficiency.
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Affiliation(s)
- A Mohebbi
- Department of Chemical Engineering, Faculty of Engineering, Shahid Bahonar University of Kerman, Kerman, Iran.
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Mohebbi A, Taheri M, Fathikaijahi J, Talaie MR. Prediction of pressure drop in an orifice scrubber based on a Lagrangian approach. J Air Waste Manag Assoc 2002; 52:308-312. [PMID: 11924862 DOI: 10.1080/10473289.2002.10470784] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A mathematical model has been developed to predict pressure drop in an orifice scrubber. This model is based on a Lagrangian approach for droplet movement and a particle-source-in-cell (PSI-CELL) model for calculating droplet concentration distribution. The k-epsilon turbulent model including body force due to the drag force between fluid and droplets was used to evaluate the fluid velocity distribution. The effect of orifice size on pressure drop and the correlations for mean droplet diameter have been studied. The results from the model have been compared with experimental data. This comparison shows excellent agreement between the calculated results and the experimental data.
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Affiliation(s)
- A Mohebbi
- Department of Chemical Engineering, Shiraz University, Shiraz, Iran
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Gonen O, Mohebbi A, Stoyanova R, Brown TR. In vivo phosphorus polarization transfer and decoupling from protons in three-dimensional localized nuclear magnetic resonance spectroscopy of human brain. Magn Reson Med 1997; 37:301-6. [PMID: 9001156 DOI: 10.1002/mrm.1910370228] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Refocused insensitive nucleus enhancement by polarization transfer (RINEPT) from protons (1H) to a J-coupled phosphorus (31P) has been incorporated into three-dimensional (3D) chemical-shift-imaging (CSI) sequence on a clinical imager. The technique is demonstrated on a phantom and in in vivo human brain. The polarization-transfer efficiency (approximately 1.2) is lower than the theoretical maximum of gamma1H/gamma31P approximately 2.4 resulting from 1H-1H homonuclear J couplings of similar magnitude competing with the 1H --> 31P transfer. Nevertheless, compared with direct 31P Ernst-angle excitation, signal gains of up to x1.8 were obtained mainly as a result of T1 differences between 31P and the 1H. Spectral interpretation is simplified by editing out all non-proton-coupled 31P signals. The duration, approximately 50 min, and power deposition, approximately 1 W x kg(-1), make the application suitable for human studies.
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Affiliation(s)
- O Gonen
- Department of Nuclear Magnetic Resonance and Medical Spectroscopy, Fox Chase Cancer Center, Philadelphia, Pennsylvania 19111, USA
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