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Nejati A, Tabatabaei SM, Mahmoudi S, Zahraei SM, Tabatabaie H, Razaghi M, Khodakhah F, Yousefi M, Mollaei-Kandelousi Y, Keyvanlou M, Soheili P, Pouyandeh S, Samimi-Rad K, Shahmahmoodi S. Environmental Surveillance of Poliovirus and Non-polio Enteroviruses in Iran, 2017-2023: First Report of Imported Wild Poliovirus Type 1 Since 2000. Food Environ Virol 2024:10.1007/s12560-024-09600-8. [PMID: 38658427 DOI: 10.1007/s12560-024-09600-8] [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: 02/26/2024] [Accepted: 04/08/2024] [Indexed: 04/26/2024]
Abstract
In Iran, which is at high risk of the Wild Poliovirus (WPV) and Vaccine-Derived Poliovirus (VDPV) importation due to its neighborhood with two polio endemic countries, Pakistan and Afghanistan, Environmental Surveillance (ES) was established in November 2017. Sistan-Balouchestan province was chosen for the ES due to its vicinity with Pakistan and Afghanistan. Five sewage collection sites in 4 cities (Zahedan, Zabol, Chabahar and Konarak) were selected in the high-risk areas. Since the establishment of ES in November 2017 till the end of 2023, 364 sewage specimens were collected and analyzed. The ES detected polioviruses which have the highest significance for polio eradication program, that is, Wild Poliovirus type 1 (WPV1) and Poliovirus type 2 (PV2). In April and May 2019, three of 364 (0.8%) sewage specimens from Konarak were positive for imported WPV1. According to phylogenetic analysis, they were highly related to WPV1 circulating in Karachi (Sindh province) in Pakistan. PV2 was also detected in 5.7% (21/364) of the sewage specimens, most of which proved to be imported from the neighboring countries. Of 21 isolated PV2s, 7 were VDPV2, of which 5 proved to be imported from the neighboring countries as there was VDPV2 circulating in Pakistan at the time of sampling, and 2 were ambiguous VDPVs (aVDPV) with unknown source. According to the findings of this study, as long as WPV1 and VDPV2 outbreaks are detected in Iran's neighboring countries, there is a definite need for continuation and expansion of the environmental surveillance.
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Affiliation(s)
- Ahmad Nejati
- National Polio Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Mehdi Tabatabaei
- Health Promotion Research Center, Zahedan University of Medical Sciences, Sistan Balouchestan Province, Zahedan, Iran
| | - Sussan Mahmoudi
- Vaccine Preventable Diseases Department, Center for Communicable Diseases Control, Ministry of Health and Medical Education, Tehran, Iran
| | - Seyed Mohsen Zahraei
- Vaccine Preventable Diseases Department, Center for Communicable Diseases Control, Ministry of Health and Medical Education, Tehran, Iran
| | - Hamideh Tabatabaie
- National Polio Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Razaghi
- National Polio Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Farshad Khodakhah
- National Polio Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Yousefi
- National Polio Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Yaghoub Mollaei-Kandelousi
- National Polio Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Keyvanlou
- National Polio Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Parastoo Soheili
- National Polio Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Shayan Pouyandeh
- National Polio Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Katayoon Samimi-Rad
- National Polio Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Shohreh Shahmahmoodi
- National Polio Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
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Ahmadi AS, Shafiei-Jandaghi NZ, Sadeghi K, Nejati A, Zadheidar S, Mokhtari-Azad T, Yavarian J. Comparison of Circulating Variants during the Beginning, Middle and the End of the 4th Wave of COVID-19 in Tehran Province, Iran in 2021. Iran J Public Health 2023; 52:2621-2629. [PMID: 38435775 PMCID: PMC10903313 DOI: 10.18502/ijph.v52i12.14323] [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] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 08/11/2023] [Indexed: 03/05/2024]
Abstract
Background Whole viral genome sequencing with next generation sequencing (NGS) technique is useful tool for determining the diversity of variants and mutations of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). In this study we have attempted to characterize the mutations and circulating variants of the SARSCoV-2 genome during the 4th wave of COVID-19 pandemic in Tehran, Iran in 2021. Methods We performed complete genome sequencing of 15 SARS-CoV-2 detected from 15 COVID-19 patients during the 4th wave of COVID-19 pandemic with NGS. Three groups of the patients at the beginning, middle and the end of the 4th wave were compared together. Results We detected alpha and delta variants during the 4th wave of the pandemic. The results illustrated a dominance of amino acid substitution D614G in spike, and the most frequent mutants were N-R203K, G204R, S235F, nsp12-P323L, nsp6-G106del, G107del and F108del. Conclusion The detection of the virus mutations is a useful procedure for identifying the virus behavior and its genetic evolution in order to improve the efficacy of the monitoring strategies and therapeutic measures.
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Affiliation(s)
- Akram Sadat Ahmadi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Kaveh Sadeghi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Nejati
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Sevrin Zadheidar
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Talat Mokhtari-Azad
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Jila Yavarian
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Research Center for Antibiotic Stewardship and Antimicrobial Resistance, Tehran University of Medical Sciences, Tehran, Iran
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Latifi T, Teymoori-Rad M, Nejati A, Shahmahmoodi S, Rezaei F, Marashi SM. In vitro Effect of EBV Infection on HERV-K18 env Expression in the Presence and Absence of Vitamin D in Multiple Sclerosis Patients. Iran Biomed J 2023. [PMID: 38468371 DOI: 10.61186/ibj.3991] [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] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
Background HERV-K env is associated with several neurological disorders, including MS. Clinical studies have demonstrated a plausible interaction between HERV-K env and other MS risk factors. The present study aimed to investigate the possible association between HERV-K18 env and TGF-β. We further assessed the in vitro effect of EBV infection on HERV-K18 env expression in the presence and absence of vitamin D in MS patients. Methods PBMCs from 20 MS patients and 20 healthy controls were infected with the B95.8 EBV, seeded into 24-well plates and incubated in the presence or absence of 100 nM of 1,25(OH)D3. The expression levels of HERV-K18 env and TGF-β were measured using real-time PCR. Results While the expression level of HERV-K18 env was significantly higher in MS patients than the healthy controls, this trend for TGF-β was significantly reverse. Interestingly, an inverse correlation was found between HERV-K18 env and TGF-β expression in MS patients, although the in vitro stimulation of PBMCs with EBV and vitamin D showed no significant differences in terms of HERV-K18 expression. Conclusion Our findings highlight the potential role of HERV-K18 env in MS patients.
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Affiliation(s)
- Tayebeh Latifi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Majid Teymoori-Rad
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Nejati
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Shohreh Shahmahmoodi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Farhad Rezaei
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Sayed Mahdi Marashi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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Ahmadi AS, Shafiei‐Jandaghi NZ, Sadeghi K, Salimi V, Nejati A, Azad TM, Yavarian J. SARS-CoV-2 in patient with protein C deficiency: A case report. Clin Case Rep 2023; 11:e8030. [PMID: 37850062 PMCID: PMC10577157 DOI: 10.1002/ccr3.8030] [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: 06/13/2023] [Revised: 09/18/2023] [Accepted: 09/27/2023] [Indexed: 10/19/2023] Open
Abstract
In SARS-CoV-2 pandemic different disorders in coagulation pathways in COVID-19 patients were reported. We described a 44-year-old female with COVID-19 and protein C deficiency history. She did not show any coagulation disorder during her disease course. Complete genome sequencing of SARS-CoV-2 was performed and some mutations identified and compared with Wuhan strain. Besides hospitalized patients, in COVID-19 outpatients with low concentration of protein C, early prescription of an anticoagulant such as heparin could be helpful in prevention of venous thromboembolism or pulmonary embolism.
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Affiliation(s)
- Akram Sadat Ahmadi
- Department of Virology, School of Public HealthTehran University of Medical SciencesTehranIran
| | | | - Kaveh Sadeghi
- Department of Virology, School of Public HealthTehran University of Medical SciencesTehranIran
| | - Vahid Salimi
- Department of Virology, School of Public HealthTehran University of Medical SciencesTehranIran
| | - Ahmad Nejati
- Department of Virology, School of Public HealthTehran University of Medical SciencesTehranIran
| | - Talat Mokhtari Azad
- Department of Virology, School of Public HealthTehran University of Medical SciencesTehranIran
| | - Jila Yavarian
- Department of Virology, School of Public HealthTehran University of Medical SciencesTehranIran
- Research Center for Antibiotic Stewardship and Antimicrobial ResistanceTehran University of Medical SciencesTehranIran
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Izadi S, Najfizadeh SR, Nejati A, TeimooriRad M, Shahmahmoodi S, Shirazi FG, Shokri F, Marashi SM. Potential role of EBV and Toll-like receptor 9 ligand in patients with systemic lupus erythematosus. Immunol Res 2023; 71:698-708. [PMID: 37097524 DOI: 10.1007/s12026-023-09380-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 01/27/2023] [Accepted: 04/01/2023] [Indexed: 04/26/2023]
Abstract
SLE is a multisystem autoimmune disease characterized by multiple immunological abnormalities including production of autoantibodies. While the etiology of SLE is largely unknown, it is generally accepted that both genetic and environmental factors contribute to disease risk and immune dysregulation. Production of IFN-α is important for protecting the host against infections; however, over stimulation of innate immune pathways can induce autoimmune disease. Environmental factors, particularly Epstein-Barr virus (EBV), have been proposed to play an important role in SLE disease. Improper engagement of Toll-like receptor (TLR) pathways by endogenous or exogenous ligands may lead to the initiation of autoimmune responses and tissue injury. EBV is shown to be a potent stimulant of IFN-α by TLR signaling cascades. Given the highlighted role of IFN-α in SLE pathogenesis and potential role of EBV infection in this disease, the present study is aimed at exploring the in vitro effects of EBV infection and CPG (either alone or in combination) on IFN-α. We also examined the expression level of CD20 and BDCA-4 and CD123 in PBMCs in 32 SLE patients and 32 healthy controls. Our results showed PBMCs treated with CPG-induced higher levels of IFN-α and TLR-9 gene expression fold change compared to cells treated with either EBV or EBV-CPG. Moreover, PBMCs treated with CPG produced significantly higher IFN-α concentration in supernatant compared to cells treated with EBV but not EBV-CPG. Our results further highlight the potential role of EBV infection and TLRs in SLE patients although more studies are warranted to ascertain the global imprint that EBV infection can have on immune signature in patients with SLE.
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Affiliation(s)
- Shima Izadi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, 14155, Iran
| | - Sayed Reza Najfizadeh
- Rheumatology Research Center, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Nejati
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, 14155, Iran
| | - Majid TeimooriRad
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, 14155, Iran
| | - Shohreh Shahmahmoodi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, 14155, Iran
| | - Frough Golsaz Shirazi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Fazel Shokri
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Sayed Mahdi Marashi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, 14155, Iran.
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Shafiei‐Jandaghi N, Tavakoli F, Yavarian J, Salimi V, Sadeghi K, Zadheidar S, Nejati A, Shatizadeh Malekshahi S, Mokhtari‐Azad T. How to tackle single target gene positive results of SARS-CoV-2 real-time PCR: A cross-sectional study. Health Sci Rep 2023; 6:e1538. [PMID: 37662536 PMCID: PMC10469029 DOI: 10.1002/hsr2.1538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 07/25/2023] [Accepted: 08/17/2023] [Indexed: 09/05/2023] Open
Abstract
Background and Aims Real-time reverse-transcriptase polymerase chain reaction (real-time RT-PCR) is the gold standard test for diagnosis of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, when the test result is near the detection limit of the assay the possibility of getting false positive or negative results is high. In addition, it might result in single target gene positive (STGP) results which should be interpreted with caution. Methods This study was performed on 29,962 nasal swabs from July 1 to August 31, 2020. Ct values less than 40 for each or both of N and RdRp genes were recommended to be selected as positive. Positive samples for one gene with the Cts more than 35 were rechecked by adding more templates. Results The results showed that 1016 (3.39%) samples were positive just for one gene with high Ct values. The results of the second reactions showed that 325 (31.99%) samples were positive for both N and RdRp which were reported positive, 301 (29.65%) were positive only for one gene which were considered as suspicious cases and resampling was suggested for them. Finally, 390 (38.385%) samples were negative for both genes. Conclusion In conclusion, tracking weak positive results of SARS-CoV-2 real-time RT-PCR revealed that most of the individuals who were STGP clean the infection completely in less than a week which showed they were in the convalescent phase of infection. However, some of them who were in the beginning of infection showed a decrease in Ct value during a week, so they could spread the virus in the society.
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Affiliation(s)
| | - Forough Tavakoli
- Virology Department, School of Public HealthTehran University of Medical SciencesTehranIran
| | - Jila Yavarian
- Virology Department, School of Public HealthTehran University of Medical SciencesTehranIran
| | - Vahid Salimi
- Virology Department, School of Public HealthTehran University of Medical SciencesTehranIran
| | - Kaveh Sadeghi
- Virology Department, School of Public HealthTehran University of Medical SciencesTehranIran
| | - Sevrin Zadheidar
- Virology Department, School of Public HealthTehran University of Medical SciencesTehranIran
| | - Ahmad Nejati
- Virology Department, School of Public HealthTehran University of Medical SciencesTehranIran
| | | | - Talat Mokhtari‐Azad
- Virology Department, School of Public HealthTehran University of Medical SciencesTehranIran
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Samadi M, Mokhtari-Azad T, Nejati A, Norooz-Babaei Z, Foroushani AR, Haghshenas MR, Adjaminejad F, Zargaran H, Salimi V, Ghaemi A. The antitumor effect of oncolytic respiratory syncytial virus via the tumor necrosis factor-alpha induction and ROS-bax-mediated mechanisms. BMC Cancer 2023; 23:803. [PMID: 37641004 PMCID: PMC10464077 DOI: 10.1186/s12885-023-11326-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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Accepted: 08/22/2023] [Indexed: 08/31/2023] Open
Abstract
BACKGROUND Cervical cancer represents one of the most prevalent cancers among women worldwide, particularly in low- and middle-income nations. Oncolytic viruses (OVs) can infect cancer cells selectively and lethally without harming normal cells. Respiratory syncytial virus (RSV) is an oncolytic virus for anticancer therapy because of its propensity to multiply within tumor cells. This research aimed to assess the in vitro antitumor activities and molecular basis processes of the oncolytic RSV-A2 on the TC-1 cancer cells as a model for HPV‑related cervical cancers. METHODS Cellular proliferation (MTT) and lactate dehydrogenase (LDH) release assays were used to investigate the catalytic impacts of RSV-A2 by the ELISA method. Real-time PCR and flow cytometry assays were utilized to assess apoptosis, autophagy, intracellular concentrations of reactive oxygen species (ROS), and cell cycle inhibition. RESULTS Our MTT and LDH results demonstrated that TC-1 cell viability after oncolytic RSV-A2 treatment was MOI-dependently and altered significantly with increasing RSV-A2 virus multiplicity of infection (MOI). Other findings showed that the RSV-A2 potentially resulted in apoptosis and autophagy induction, caspase-3 activation, ROS generation, and cell cycle inhibition in the TC-1 cell line. Real-time PCR assay revealed that RSV-A2 infection significantly elevated the Bax and decreased the Bcl2 expression. CONCLUSIONS The results indicated that oncolytic RSV-A2 has cytotoxic and inhibiting effects on HPV-associated cervical cancer cells. Our findings revealed that RSV-A2 is a promising treatment candidate for cervical cancer.
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Affiliation(s)
- Mehdi Samadi
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Talat Mokhtari-Azad
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Nejati
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Norooz-Babaei
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Abbas Rahimi Foroushani
- Department of Statistics and Epidemiology, School of Public Health, Tehran University of medical sciences, Tehran, Iran
| | - Mohammad Reza Haghshenas
- Department of Microbiology, Molecular, and Cell-Biology Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Fatemeh Adjaminejad
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Hedieh Zargaran
- Department of Influenza and Other Respiratory Viruses, Pasteur Institute of Iran, Tehran, Iran
| | - Vahid Salimi
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
| | - Amir Ghaemi
- Department of Influenza and Other Respiratory Viruses, Pasteur Institute of Iran, Tehran, Iran.
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Ahmadi AS, Zadheidar S, Sadeghi K, Nejati A, Salimi V, Hajiabdolbaghi M, Mokhtari-Azad T, Yavarian J. SARS-CoV-2 intrahost evolution in immunocompromised patients in comparison with immunocompetent populations after treatment. J Med Virol 2023; 95:e28877. [PMID: 37341553 DOI: 10.1002/jmv.28877] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 05/22/2023] [Accepted: 06/02/2023] [Indexed: 06/22/2023]
Abstract
Many evidence suggests that long-lasting infection can develop with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). This occurrence has been widely described in immunocompromised individuals. In these patients, ineffective clearance of virus infection provides an opportunity for developing immune escape mutants. This study aimed to characterize SARS-CoV-2 intrahost evolution in five immunocompromised in comparison with five immunocompetent COVID-19 patients during treatment. We performed next-generation sequencing (NGS) on collected two oropharyngeal samples from immunocompromised and immunocompetent COVID-19 patients before and after treatment. In this study, we detected alpha and delta variants of SARS-CoV-2. The most common substitutions in structural proteins in patients with alpha variant were S-ΔY143-144, A570D, D614G and D1118H, and N-R203K and G204R, and in delta variant S-T19R, G142D, E156G, 157-158del, L452R, T478K, D614G, D950N and N-D63G, R203M and D377Y were dominant. The common variations in nonstructural and accessory proteins including nsp3-A488S, P1228L, nsp6-T77A, nsp12-P323L, G671S, nsp13-P77L, NS3-S26L, and NS7a-T120I were detected. Also some infrequent substitutions were seen in immunocompromised and immunocompetent patients. After treatment, nsp12-V166A was emerged as a remdesivir resistance and S-L452M in a patient with common variable immunodeficiency. S-E484Q was detected in a patient with acute lymphoma leukemia. This study showed the possibility of the genetic diversity and development of some new mutations in immunocompromised patients. Therefore, surveillance of these patients to characterize any new variants is necessary.
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Affiliation(s)
- Akram Sadat Ahmadi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Sevrin Zadheidar
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Kaveh Sadeghi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Nejati
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Vahid Salimi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahboobeh Hajiabdolbaghi
- Iranian Research Center for HIV/AIDS, Iranian Institute for Reduction of High-Risk Behaviors, Tehran University of Medical Sciences, Tehran, Iran
| | - Talat Mokhtari-Azad
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Jila Yavarian
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Research Center for Antibiotic Stewardship and Antimicrobial Resistance, Tehran University of Medical Sciences, Tehran, Iran
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Sadeghi K, Zadheidar S, Zebardast A, Nejati A, Faraji M, Ghavami N, Kalantari S, Salimi V, Yavarian J, Abedi A, Jandaghi NZS, Mokhtari‐Azad T. Genomic surveillance of SARS-CoV-2 strains circulating in Iran during six waves of the pandemic. Influenza Other Respir Viruses 2023; 17:e13135. [PMID: 37078070 PMCID: PMC10106497 DOI: 10.1111/irv.13135] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 02/13/2023] [Revised: 03/25/2023] [Accepted: 04/03/2023] [Indexed: 04/21/2023] Open
Abstract
Background SARS-CoV-2 genomic surveillance is necessary for the detection, monitoring, and evaluation of virus variants, which can have increased transmissibility, disease severity, or other adverse effects. We sequenced 330 SARS-CoV-2 genomes during the sixth wave of the COVID pandemic in Iran and compared them with five previous waves, for identifying SARS-CoV-2 variants, the genomic behavior of the virus, and understanding its characteristics. Methods After viral RNA extraction from clinical samples collected during the COVID-19 pandemic, next generation sequencing was performed using the Nextseq and Nanopore platforms. The sequencing data were analyzed and compared with reference sequences. Results In Iran during the first wave, V and L clades were detected. The second wave was recognized by G, GH, and GR clades. Circulating clades during the third wave were GH and GR. In the fourth wave, GRY (alpha variant), GK (delta variant), and one GH clade (beta variant) were detected. All viruses in the fifth wave were in GK clade (delta variant). In the sixth wave, Omicron variant (GRA clade) was circulating. Conclusions Genome sequencing, a key strategy in genomic surveillance systems, helps to detect and monitor the prevalence of SARS-CoV-2 variants, monitor the viral evolution of SARS-CoV-2, identify new variants for disease prevention, control, and treatment, and also provide information for and conduct public health measures in this area. With this system, Iran could be ready for surveillance of other respiratory virus diseases besides influenza and SARS-CoV-2.
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Affiliation(s)
- Kaveh Sadeghi
- Virology Department, School of Public HealthTehran University of Medical SciencesTehranIran
| | - Sevrin Zadheidar
- Virology Department, School of Public HealthTehran University of Medical SciencesTehranIran
| | - Arghavan Zebardast
- Virology Department, School of Public HealthTehran University of Medical SciencesTehranIran
| | - Ahmad Nejati
- Virology Department, School of Public HealthTehran University of Medical SciencesTehranIran
| | - Marziyeh Faraji
- Virology Department, School of Public HealthTehran University of Medical SciencesTehranIran
| | - Nastaran Ghavami
- Virology Department, School of Public HealthTehran University of Medical SciencesTehranIran
| | - Shirin Kalantari
- Virology Department, School of Public HealthTehran University of Medical SciencesTehranIran
| | - Vahid Salimi
- Virology Department, School of Public HealthTehran University of Medical SciencesTehranIran
| | - Jila Yavarian
- Virology Department, School of Public HealthTehran University of Medical SciencesTehranIran
- Research Center for Antibiotic Stewardship & Antimicrobial ResistanceTehran University of Medical SciencesTehranIran
| | - Adel Abedi
- Mathematics DepartmentShahid Beheshti UniversityTehranIran
| | | | - Talat Mokhtari‐Azad
- Virology Department, School of Public HealthTehran University of Medical SciencesTehranIran
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Soltani M, Nejati A, Marashi SM, Nili F, Yaseri M, Mokhtari Azad T. Diverse Expression Patterns of EBV Oncogenes ( LMP2A, EBV-Encoded microRNA, and EBV-encoded dUTPase) in EBV Associated Gastric Carcinoma and their Association with Viral Loads. Arch Razi Inst 2023; 78:643-649. [PMID: 37396720 PMCID: PMC10314258 DOI: 10.22092/ari.2022.359408.2415] [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] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 09/04/2022] [Indexed: 07/04/2023]
Abstract
The chromogenic in situ hybridization (CISH) test is the gold standard for detecting Epstein-Barr virus (EBV)-associated gastric carcinoma (GC). Real-time (RT) PCR method is also a sensitive test that can detect the viral load in samples. As such, three EBV oncogenes were investigated in this study. RNA extraction and cDNA synthesis were performed on GC tissues of nine patients, who were previously confirmed to have EBVGC subtype. In addition, 44 patients that had positive RT-PCR but negative CISH results were also included as the control group. TaqMan RT-PCR analysis was performed to determine the expression of EBV-encoded microRNAs, and the expression of EBV-encoded dUTPase, as well as LMP2A, was analyzed by SYBR Green RT-PCR. EBV-encoded microRNAs and LMP2A were identified in 2 out of 9 (22%) EBVGC subtypes. In addition, EBV-encoded dUTPase was detected in 4 out of 9 (44.5%) EBVGC subtypes. EBV-encoded dUTPase was also expressed in a sample of the control group. The expression of LMP2A, EBV-encoded microRNAs, and EBV-encoded dUTPase viral oncogenes in patients with high EBV viral loads indicates that these expressions correlate with viral loads. Our findings indicate that the EBV-encoded dUTPase gene may have a role in EBVGC patients' non-response to treatment and might be considered a Biomarker-targeted therapy.
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Affiliation(s)
- M Soltani
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - A Nejati
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - S M Marashi
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - F Nili
- Department of Pathology, Imam Khomeini hospital complex, Tehran University of Medical Sciences, Tehran, Iran
| | - M Yaseri
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - T Mokhtari Azad
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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11
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Hashemi SY, Shahmahmoodi S, Hadi M, Nodehi RN, Alimohammadi M, Nejati A, Mesdaghinia A. Quantitative microbial risk assessment of enteroviruses in raw-eatable vegetables irrigated by wastewater: examining different scenarios of washing. J Environ Health Sci Eng 2022; 20:629-640. [PMID: 36406612 PMCID: PMC9672215 DOI: 10.1007/s40201-022-00789-z] [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: 10/21/2021] [Accepted: 01/01/2022] [Indexed: 06/16/2023]
Abstract
Due to the increasing water crisis, the reuse of wastewater deserves attention as a method to reduce the pressure of the water crisis, especially in developing countries. The application of health risk assessment models is a way to estimate disease burdens associated with crop irrigation by wastewater effluents. In this study, a quantitative microbial risk assessment (QMRA) with probabilistic Monte-Carlo simulation was used to estimate the annual risk of enteroviruses (EVs) infection and disease burden for consumers of effluent-irrigated raw vegetables in Tehran, the capital of Iran. Wastewater effluent samples were collected over two seasons: summer and winter. EVs were analyzed in three stages, concentration and separation, cell culture, and real-time PCR (RT-PCR). A questionnaire was used to determine the dominant patterns of vegetable washing by consumers. There were 4 vegetable washing steps: wiping away mud (A), rinsing (B), using detergents (C), using disinfectants (D). 5 patterns of washing were examined in the laboratory and the concentration of enteroviruses was measured in every pattern. pattern 1: just wiping away mud (A), pattern 2: wiping away mud and rinsing (AB), pattern 3: wiping away mud by using detergents and rinsing (ABCB), pattern 4: wiping away mud by using disinfectants and rinsing (ABDB), and pattern 5: wiping away mud by using detergents and disinfectants and rinsing (ABCBDB). For washing pattern 1, pattern 2, and pattern 3, the estimated annual infection risk of EVs was estimated to be 5.6 × 10-1, 3.6 × 10-1, 1.7 × 10-1 (risk/per.day), and burden of disease was calculated as 3 × 10-2, 2 × 10-2, and 9 × 10-3 (burden/year), respectively. The results showed that if vegetables are washed according to method 5, the microbial risk will be minimized and the excess prevalence of viral infections will be eliminated.
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Affiliation(s)
- Seyed Yaser Hashemi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Shohreh Shahmahmoodi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Hadi
- Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | - Ramin Nabizadeh Nodehi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmood Alimohammadi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Nejati
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Mesdaghinia
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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12
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Zadheidar S, Yavarian J, Heydarifard Z, Nejati A, Sadeghi K, Ghavami N, Abbasi S, Shatizadeh Malekshahi S, Mokhtari-Azad T, Shafiei-Jandaghi NZ. Molecular epidemiology of human adenoviruses in children with and without respiratory symptoms: Preliminary findings from a case-control study. BMC Pediatr 2022; 22:583. [PMID: 36207696 PMCID: PMC9547415 DOI: 10.1186/s12887-022-03625-3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 09/16/2022] [Accepted: 09/23/2022] [Indexed: 11/29/2022] Open
Abstract
Background Human adenovirus (HAdV) is an important viral agent in children which can lead to severe acute respiratory infection (SARI). Reports on molecular epidemiology of HAdVs in Iran are limited. This case-control study is conducted to compare the HAdV infection rate and molecular epidemiology among two groups of children with and without respiratory symptoms in Tehran, Iran during 2018–2019. Methods Nested PCR was performed on 120 oropharyngeal swabs taken from children aged five and younger with SARI who were hospitalized as the case group, and 120 oropharyngeal swabs were collected from children of the same age without respiratory symptoms as the control group. For positive samples Sanger sequencing was done and a phylogenetic tree was drawn afterward. Results Out of 120 cases, 8 (6.6%) tested positive for eachHAdV types including 6 (75%) HAdV-B7, 1 (12.5%) HAdV-C2, and 1 (12.5%) HAdV-C6. Among the control group, out of 120 samples, 8 (6.6%) were positive comprising 5 (62.5%) HAdV-C5, 2 (25%) HAdV-F41, and 1 (12.5%) HAdV-C6. Conclusion The present study indicated a different viewpoint of HAdV molecular epidemiology in which the genotypes were compared in children with and without respiratory symptoms. HAdV prevalence was equally common in cases and controls but different genotypes were detected in these two groups. HAdV-B7 was the main type among children with SARI, dissimilar to children with no respiratory symptoms where HAdV-C5 was the predominant type. Detecting HAdV-F in oropharyngeal swabs was a rare finding, which requires further investigation.
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Affiliation(s)
- Sevrin Zadheidar
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Jila Yavarian
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Heydarifard
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Nejati
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Kaveh Sadeghi
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Nastaran Ghavami
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Simin Abbasi
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Talat Mokhtari-Azad
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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13
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Yavarian J, Nejati A, Salimi V, Shafiei Jandaghi NZ, Sadeghi K, Abedi A, Sharifi Zarchi A, Gouya MM, Mokhtari-Azad T. Whole genome sequencing of SARS-CoV2 strains circulating in Iran during five waves of pandemic. PLoS One 2022; 17:e0267847. [PMID: 35499994 PMCID: PMC9060343 DOI: 10.1371/journal.pone.0267847] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 04/14/2022] [Indexed: 12/23/2022] Open
Abstract
Purpose Whole genome sequencing of SARS-CoV2 is important to find useful information about the viral lineages, variants of interests and variants of concern. As there are not enough data about the circulating SARS-CoV2 variants in Iran, we sequenced 54 SARS-CoV2 genomes during the 5 waves of pandemic in Iran. Methods After viral RNA extraction from clinical samples collected during the COVID-19 pandemic, next generation sequencing was performed using the Nextseq platform. The sequencing data were analyzed and compared with reference sequences. Results During the 1st wave, V and L clades were detected. The second wave was recognized by G, GH and GR clades. Circulating clades during the 3rd wave were GH and GR. In the fourth wave GRY (alpha variant), GK (delta variant) and one GH clade (beta variant) were detected. All viruses in the fifth wave were in clade GK (delta variant). There were different mutations in all parts of the genomes but Spike-D614G, NSP12-P323L, N-R203K and N-G204R were the most frequent mutants in these studied viruses. Conclusions These findings display the significance of SARS-CoV2 monitoring to help on time detection of possible variants for pandemic control and vaccination plans.
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Affiliation(s)
- Jila Yavarian
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Nejati
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Vahid Salimi
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Kaveh Sadeghi
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Adel Abedi
- Mathematics Department, Shahid Beheshti University, Tehran, Iran
| | - Ali Sharifi Zarchi
- Department of Computer Engineering, Sharif University of Technology, Tehran, Iran
| | | | - Talat Mokhtari-Azad
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- * E-mail:
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14
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Nejati A, Soheili P, Yousefipoor S, Zahraei SM, Mahmoudi S, Yousefi M, Mollaei-Kandelous Y, Samimi-Rad K, Tabatabaie H, Khodakhah F, Shahmahmoodi S. Molecular typing of enteroviruses and parechoviruses in acute flaccid paralysis patients in Iran in 2019. Arch Virol 2022; 167:891-899. [PMID: 35147803 DOI: 10.1007/s00705-022-05359-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 12/01/2021] [Indexed: 11/02/2022]
Abstract
Enteroviruses (EVs) and parechoviruses (PeVs) are among the viral pathogens that can cause acute flaccid paralysis (AFP). There is not sufficient information about direct detection of EVs and PeVs in AFP patients in Iran. The aim of this study was to conduct a one-year study for direct detection and molecular typing of EVs and PeVs from stool samples of AFP patients in Iran. One hundred stool samples from polio-negative AFP patients who were referred to the Iran National Polio Laboratory were randomly chosen and analyzed during 2019. A one-step TaqMan probe-based real-time RT-PCR assay targeting the 5'-untranslated region (5' -UTR) was used to screen for EVs and PeVs. All positive samples were genotyped by direct sequencing, targeting the VP1 region of the genome. In total, twelve (12%) and four (4%) stool samples from polio-negative AFP children were positive for EVs and PeVs, respectively. Sequence analysis revealed the presence of echovirus 2 (E2), echovirus 13 (E13), echovirus 25 (E25), echovirus 30 (E30), coxsackievirus A2 (CVA2), coxsackievirus A9 (CVA9), coxsackievirus A16 (CVA16), human enterovirus A76 (HEV-A76), and human parechovirus 1 (HPeV1) in children with AFP-like symptoms. Phylogenetic analysis showed that E2 strains clustered together with the strains circulating in the Netherlands during 2014, whereas the PeV strains belonged to different lineages. This study demonstrates that different EV types are associated with AFP cases in Iran. However, the frequency of association of PeVs with AFP cases appears to be low.
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Affiliation(s)
- Ahmad Nejati
- National Polio Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, 14716-13151, Iran
| | - Parastoo Soheili
- National Polio Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, 14716-13151, Iran
| | - Soodeh Yousefipoor
- National Polio Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, 14716-13151, Iran
| | - Seyed Mohsen Zahraei
- Vaccine Preventable Diseases Department, Center for Communicable Diseases Control, Ministry of Health and Medical Education, Tehran, Iran
| | - Sussan Mahmoudi
- Vaccine Preventable Diseases Department, Center for Communicable Diseases Control, Ministry of Health and Medical Education, Tehran, Iran
| | - Maryam Yousefi
- National Polio Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, 14716-13151, Iran
| | - Yaghoob Mollaei-Kandelous
- National Polio Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, 14716-13151, Iran
| | - Katayoun Samimi-Rad
- National Polio Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, 14716-13151, Iran
| | - Hamideh Tabatabaie
- National Polio Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, 14716-13151, Iran
| | - Farshad Khodakhah
- National Polio Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, 14716-13151, Iran
| | - Shohreh Shahmahmoodi
- National Polio Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, 14716-13151, Iran.
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15
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Kord E, Roohvand F, Dubuisson J, Vausselin T, Nasr Azadani H, Keshavarz A, Nejati A, Samimi-Rad K. BacMam virus-based surface display for HCV E2 glycoprotein induces strong cross-neutralizing antibodies and cellular immune responses in vaccinated mice. Infect Agent Cancer 2021; 16:69. [PMID: 34922563 PMCID: PMC8684228 DOI: 10.1186/s13027-021-00407-x] [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: 05/13/2021] [Accepted: 11/18/2021] [Indexed: 12/01/2022] Open
Abstract
Background Despite recent advancements, limitations in the treatment and control of hepatitis C virus (HCV) infection reprioritized the studies for invention of an efficient HCV vaccine to elicit strong neutralizing antibodies (NAbs) and cellular responses. Methods Herein, we report molecular construction of a BacMam virus-based surface display for a subtype-1a HCV gpE2 (Bac-CMV-E2-gp64; Bac) that both expressed and displayed gpE2 in mammalian cells and bacouloviral envelope, respectively. Results Assessments by western blotting, Immunofluorescence and Immunogold-electron microscopy indicated the proper expression and incorporation in insect cell and baculovirus envelope, respectively. Mice immunized in three different prime-boost immunization groups of: Bac/Bac, Bac/Pro (bacoulovirus-derived gpE2) and Bac/DNA (plasmid DNA (pCDNA)-encoding gpE2) developed high levels of IgG and IFN-γ (highest for Bac/Bac group) indicating the induction of both humeral and cellular immune responses. Calculation of the IgG2a/IgG1 and IFN-γ/IL-4 ratios indicated a Th1 polarization of immune responses in the Bac/Bac and Bac/DNA groups but a balanced Th1-Th2 phenotype in the Bac/Pro group. Sera of the mice in the Bac/Bac group provided the highest percentage of cross-NAbs against a subtype-2a HCVcc (JFH1) compared to Bac/Pro and Bac/DNA groups (62% versus 41% and 6%). Conclusions Results indicated that BacMam virus-based surface display for gpE2 might act as both subunit and DNA vaccine and offers a promising strategy for development of HCV vaccine for concurrent induction of strong humoral and cellular immune responses. Supplementary Information The online version contains supplementary material available at 10.1186/s13027-021-00407-x.
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Affiliation(s)
- Ebrahim Kord
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Enqelab Square, P.O. Box 1417613151, Tehran, Iran.,Infectious Diseases and Tropical Medicine Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Farzin Roohvand
- Department of Virology, Pasteur Institute of Iran (IPI), No. 69, Pasteur Ave, P.O. Box 1316943551, Tehran, Iran
| | - Jean Dubuisson
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, Batiment, IBL, CS50477, Molecular & Cellular Virology, U1019 - UMR 8204 - CIIL- Center for Infection and Immunity of Lille, University Lille, 59021, Lille Cedex, France
| | - Thibaut Vausselin
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, Batiment, IBL, CS50477, Molecular & Cellular Virology, U1019 - UMR 8204 - CIIL- Center for Infection and Immunity of Lille, University Lille, 59021, Lille Cedex, France
| | - Hosein Nasr Azadani
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Enqelab Square, P.O. Box 1417613151, Tehran, Iran
| | - Abolfazl Keshavarz
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Enqelab Square, P.O. Box 1417613151, Tehran, Iran
| | - Ahmad Nejati
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Enqelab Square, P.O. Box 1417613151, Tehran, Iran
| | - Katayoun Samimi-Rad
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Enqelab Square, P.O. Box 1417613151, Tehran, Iran.
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16
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Izadi S, Najafizadeh SR, Nejati A, Teymoori-Rad M, Shahmahmoodi S, Golsaz Shirazi F, Shokri F, Marashi SM. Overall Status of Epstein-Barr virus Infection, IFN-a, and TLR-7/9 in Patients with Systemic Lupus Erythematous. Iran J Immunol 2021; 18:230-240. [PMID: 34596588 DOI: 10.22034/iji.2021.87648.1814] [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] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Systemic lupus erythematous (SLE) is a multisystem autoimmune disorder. While studying the pathogenesis of SLE is prevalent, both infectious and non-infectious elements are regarded to exert an important impact on the disease's development. OBJECTIVE To explore the overall status of EBV, TLR7, TLR9, and IFN-α gene expression in 32 patients suffering from SLE and 32 healthy controls. METHODS Plasma and PBMCs were separated from fresh whole blood. To measure EBV DNA load and mRNA levels of IFN-a, TLR-7 and9 in PBMCs, molecular techniques were employed. The production of IFN-α, ds-DNA IgG antibody, and EBNA-1 IgG levels were also measured in plasma by ELISA. RESULTS SLE patients showed significantly higher EBV load (p=0.001) and transcriptional levels of TLR7 (p=0.0001), IFN-α (p=0.0001), and TLR9 (p=0.0001) than controls. Moreover, the plasma levels of IFN-α (p=0.0002) and EBNA-1specific IgG antibodies (p=0.01) were significantly higher in SLE patients. CONCLUSION The results stressed on the potential role of EBV infection and TLRs in SLE patients although more research is needed to determine the global impact that EBV infection can have on immune signature in patients with SLE.
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Affiliation(s)
- Shima Izadi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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17
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Heydarifard Z, Zadheidar S, Yavarian J, Kalantari S, Nejati A, Mokhtari-Azad T, Shafiei-Jandaghi NZ. SARS-CoV-2 Seroprevalence in People Referred to Private Medical Laboratories in Different Districts of Tehran, Iran from May 2020 to April 2021. Virol Sin 2021; 36:1236-1240. [PMID: 34591252 PMCID: PMC8481754 DOI: 10.1007/s12250-021-00446-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 06/28/2021] [Indexed: 11/18/2022] Open
Affiliation(s)
- Zahra Heydarifard
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, 1417613151, Iran
| | - Sevrin Zadheidar
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, 1417613151, Iran
| | - Jila Yavarian
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, 1417613151, Iran
| | - Shirin Kalantari
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, 1417613151, Iran
| | - Ahmad Nejati
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, 1417613151, Iran
| | - Talat Mokhtari-Azad
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, 1417613151, Iran
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18
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Javadi M, Nejati A, Yousefi M, Mahmoodi M, Shoja Z, Shahmahmoodi S. First seroepidemiological investigation of human enterovirus 71 in Iran. Iran J Microbiol 2021; 13:502-508. [PMID: 34557279 PMCID: PMC8421584 DOI: 10.18502/ijm.v13i4.6975] [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] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Background and Objectives: Human Enterovirus 71 (EV-A71) is the causative agent for many dermal to neurological diseases especially polio-like paralysis outbreaks around the world. This study, the first of this kind in Iran, aimed to find neutralizing antibodies against EV-A71 in serum of healthy individuals in different age groups based on neutralization test (NT). Materials and Methods: In this cross-sectional study, 547 serum samples were collected from healthy individuals who were referring for routine checkup tests (aged from under 6 months to over 31 years old) to Imam-Khomeini Hospital in Tehran during January-December 2015. Serum samples were examined by NT in cell culture to detect neutralizing antibodies against EV-A71. In the next step, some of the positive samples were subjected to complete titration to determine the exact titer of anti-EV-A71 antibodies. Results: Of 547 samples, 310 (56.7%) were positive for EV-A71 neutralizing antibody. The presence of the antibody increased with age (p<0.001), and there was a significant statistical relationship between sex and the presence of antibody (p=0.009). Conclusion: Our results demonstrated an apparent but limited circulation of EV-A71 in our society. After the worldwide eradication of poliovirus, EV-A71 which can cause polio-likes syndrome, might be the new challenge for our health care system as regard more in depth research is however needed.
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Affiliation(s)
- Mahsa Javadi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.,Department of Virology, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ahmad Nejati
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Yousefi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmood Mahmoodi
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Shohreh Shahmahmoodi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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19
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Asiyabi S, Marashi SM, Vahabpour R, Nejati A, Azizi-Saraji A, Mustafa AS, Baghernejad A, Shoja Z, Mansouritorghabeh H. Parvovirus 4 in Individuals with Severe Hemophilia A and Matched Control Group. Int J Hematol Oncol Stem Cell Res 2021; 15:192-198. [PMID: 35083000 PMCID: PMC8748245 DOI: 10.18502/ijhoscr.v15i3.6849] [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: 03/29/2020] [Accepted: 11/29/2020] [Indexed: 11/24/2022] Open
Abstract
Background: Hemophilia is a well-known bleeding disorder with worldwide distribution. Replacement therapy, using plasma-derived or recombinant coagulation factors, comprises a gold standard regimen for the treatment. Regardless of the advancements made in viral inactivation methods in the production of plasma-derived coagulation factors, the possibility of transmission of new viral infections remained as a noticeable concern yet. The aim of the current study was to investigate the status of parvovirus 4 (PARV4) in severe hemophilia A, von Willebrand disease (vWD), and healthy control. Materials and Methods: In the current case-control study, 76 patients with hemophilia and vWD and 60 individuals from their family members entered the study. Nested PCR used to determine the presence of PARV4 in study subjects (76 cases). To characterize the PARV4 genotype, positive samples subjected to sequencing and phylogenetic analysis. Results: PARV4 genome detected in 11 (14.47%) patients with bleeding disorders. Among whom, nine patients (14.75%) were with severe hemophilia A and two (13.33%) patients with vWD. Only five healthy controls (8.33%) were positive for PARV4. All PARV4 sequences were found to be genotype 1. Conclusion: PARV4 infection in patients with hemophilia and vWD was higher than the control group. While detection of PARV4 DNA in patients with bleeding disorders may not necessarily reflect a clinical urgency, future investigations are needed to define the clinical significance of PARV4. It seems the detection of the virus immune signature of PARV4 infection, particularly in the context of acute and persistent infections, needs to focus on cellular and tissue targets.
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Affiliation(s)
- Sanaz Asiyabi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Mahdi Marashi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Rouhollah Vahabpour
- Department of Medical Lab Technology, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ahmad Nejati
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Aliyeh Sadat Mustafa
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Asgar Baghernejad
- School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Zabiholla Shoja
- Department of Virology, Pasteur Institute of Iran, Tehran, Iran
| | - Hassan Mansouritorghabeh
- Central Diagnostic Laboratories, Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
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20
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Nasseri S, Yavarian J, Baghani AN, Azad TM, Nejati A, Nabizadeh R, Hadi M, Jandaghi NZS, Vakili B, Vaghefi SKA, Baghban M, Yousefi S, Nazmara S, Alimohammadi M. The presence of SARS-CoV-2 in raw and treated wastewater in 3 cities of Iran: Tehran, Qom and Anzali during coronavirus disease 2019 (COVID-19) outbreak. J Environ Health Sci Eng 2021. [PMID: 33643658 DOI: 10.1007/s40201-021-00629-%206] [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] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
This study aimed to identifying the presence of SARS-CoV-2 RNA in raw and treated wastewater during the COVID-19 outbreak in Tehran, Qom and Anzali cities (Iran). From three wastewater treatment plants (WWTPs), 28 treated and untreated wastewater composite samples were collected from April 4 to May 2, 2020. In this study, polyethylene glycol 6000 (PEG 6000) was used through one-step real-time quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR) for identification of RNA viruses. SARS-CoV-2 RNA was elicited from wastewater composite samples in all inlet samples taken from the three above mentioned cities. The results of outlet samples were as follows: 1) Results from Qom and East Anzali outlets showed no trace of SARS-CoV-2 RNA despite the difference in treatment disinfection method used (chlorine vs. ultraviolet (UV) disinfection). 2. In Tehran, SARS-CoV-2 RNA was not detected in any of the outlet samples taken from the modules disinfected by UV. Out of the four samples taken from the modules disinfected by chlorine, two were positive for the SARS-CoV-2 RNA which could have been caused by deficiencies in operation and maintenance. It can be concluded that meeting the standards of operation and maintenance (O&M) in WWTPs can considerably ensure that wastewater does not act as one of the roots of transmission for the disease.
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Affiliation(s)
- Simin Nasseri
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | - Jila Yavarian
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Abbas Norouzian Baghani
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Talat Mokhtari Azad
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Nejati
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ramin Nabizadeh
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Hadi
- Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | | | - Behnam Vakili
- Office of Improvement on Wastewater Operation Procedures, National Water and Wastewater Engineering Company, Tehran, Iran
| | | | - Mahtab Baghban
- Reference Laboratory of Water and Wastewater, Tehran Province of Water and Wastewater Company, Tehran, Iran
| | - Somayeh Yousefi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Shahrokh Nazmara
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmood Alimohammadi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
- Health Equity Research Center (HERC), Tehran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, Health Faculty, Tehran University of Medical Sciences, Tehran, Iran
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21
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Nasseri S, Yavarian J, Baghani AN, Azad TM, Nejati A, Nabizadeh R, Hadi M, Jandaghi NZS, Vakili B, Vaghefi SKA, Baghban M, Yousefi S, Nazmara S, Alimohammadi M. The presence of SARS-CoV-2 in raw and treated wastewater in 3 cities of Iran: Tehran, Qom and Anzali during coronavirus disease 2019 (COVID-19) outbreak. J Environ Health Sci Eng 2021; 19:573-584. [PMID: 33643658 PMCID: PMC7903026 DOI: 10.1007/s40201-021-00629-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 02/08/2021] [Indexed: 05/10/2023]
Abstract
This study aimed to identifying the presence of SARS-CoV-2 RNA in raw and treated wastewater during the COVID-19 outbreak in Tehran, Qom and Anzali cities (Iran). From three wastewater treatment plants (WWTPs), 28 treated and untreated wastewater composite samples were collected from April 4 to May 2, 2020. In this study, polyethylene glycol 6000 (PEG 6000) was used through one-step real-time quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR) for identification of RNA viruses. SARS-CoV-2 RNA was elicited from wastewater composite samples in all inlet samples taken from the three above mentioned cities. The results of outlet samples were as follows: 1) Results from Qom and East Anzali outlets showed no trace of SARS-CoV-2 RNA despite the difference in treatment disinfection method used (chlorine vs. ultraviolet (UV) disinfection). 2. In Tehran, SARS-CoV-2 RNA was not detected in any of the outlet samples taken from the modules disinfected by UV. Out of the four samples taken from the modules disinfected by chlorine, two were positive for the SARS-CoV-2 RNA which could have been caused by deficiencies in operation and maintenance. It can be concluded that meeting the standards of operation and maintenance (O&M) in WWTPs can considerably ensure that wastewater does not act as one of the roots of transmission for the disease.
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Affiliation(s)
- Simin Nasseri
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | - Jila Yavarian
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Abbas Norouzian Baghani
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Talat Mokhtari Azad
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Nejati
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ramin Nabizadeh
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Hadi
- Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | | | - Behnam Vakili
- Office of Improvement on Wastewater Operation Procedures, National Water and Wastewater Engineering Company, Tehran, Iran
| | | | - Mahtab Baghban
- Reference Laboratory of Water and Wastewater, Tehran Province of Water and Wastewater Company, Tehran, Iran
| | - Somayeh Yousefi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Shahrokh Nazmara
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmood Alimohammadi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
- Health Equity Research Center (HERC), Tehran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, Health Faculty, Tehran University of Medical Sciences, Tehran, Iran
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22
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Teymoori-Rad M, Sahraian MA, Mokhtariazad T, Nejati A, Mozdabadi RSK, Amiri MM, Shokri F, Marashi SM. Illuminating the in vitro effects of Epstein-Barr virus and vitamin D on immune response in multiple sclerosis patients. J Neurovirol 2021; 27:260-271. [PMID: 33666884 DOI: 10.1007/s13365-021-00951-7] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 01/12/2021] [Accepted: 01/20/2021] [Indexed: 11/25/2022]
Abstract
Given the complexity of immune complex diseases including multiple sclerosis (MS) and the plausible interactions between different risk factors, delineating the interplay between them would be imperative. The current study aimed to evaluate the in vitro effects of Epstein-Barr virus (EBV) and vitamin D on immune response in MS patients and healthy controls. The status of vitamin D and EBV load was evaluated using multiple techniques. In vitro EBV-infected peripheral blood mononuclear cells (PBMCs), in the presence or absence of vitamin D, were checked for IL-10, IFN-γ, and vitamin D receptor. MS patients showed significantly higher plasma levels of 1,25-(OH)2D but not 25-OHD, increased EBV load, and lower levels of vitamin D receptor (VDR) expression compared with healthy controls. Interestingly, an inverse correlation was observed between VDR expression and EBV load in PBMCs. Indeed, the levels of IFN-γ and IL-10 production were significantly higher in supernatant collected from in vitro EBV-infected PBMCs in MS patients compared with controls. While all vitamin D-treated PBMCs showed reduced levels of IFN-γ production, in vitro treatment of vitamin D showed no influence in IL-10 production. EBV and vitamin D were found to exert opposite in vitro effects on immune dysregulation in these patients. Our results highlight the complex interactions of different risk factors with immune system.
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Affiliation(s)
- Majid Teymoori-Rad
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Sahraian
- Multiple Sclerosis Research Centre, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Talat Mokhtariazad
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Nejati
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Mohammad Mehdi Amiri
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Fazel Shokri
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Sayed Mahdi Marashi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
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23
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Kabuga AI, Nejati A, Soheili P, Shahmahmoodi S. Human parechovirus are emerging pathogens with broad spectrum of clinical syndromes in adults. J Med Virol 2020; 92:2911-2916. [PMID: 32761910 DOI: 10.1002/jmv.26395] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 07/08/2020] [Accepted: 07/31/2020] [Indexed: 12/13/2022]
Abstract
Parechoviruses are emerging pathogens of humans often affecting the pediatric age group, with a growing line of evidence implicating them as agents of a broad spectrum of clinical syndromes in adults. However, because many clinicians are not familiar with the manifestation of the infections, they are not included in the list of diagnostic pathogens. Furthermore, due to the indistinguishable feature of the infection compared with other common pathogens, a large number of cases are likely to go unchecked. Some may develop asymptomatic infection and recover without overt clinical disease. In this manuscript, we reviewed available literature on parechovirus infection in adult and summarized information relating to epidemiology, clinical manifestation, laboratory diagnosis, and therapeutics. The information provided should help in early case detection and support an evidence-based clinical decision.
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Affiliation(s)
- Auwal Idris Kabuga
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Department of Medical Microbiology and Parasitology, Faculty of Clinical Sciences, College of Health Sciences, Bayero University, Kano, Nigeria
| | - Ahmad Nejati
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Parastoo Soheili
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Shohreh Shahmahmoodi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Department of Virology, School of Public Health, Food Microbiology Research Center, Tehran University of Medical Sciences, Tehran, Iran
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24
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Kabuga AI, Nejati A, Soheili P, Yousefipoor S, Yousefi M, Mollaiee Y, Shahmahmoodi S. Cell culture demonstrates superior sensitivity over one step real time RT PCR and nested VP1 amplification for Enteroviruses. J Virol Methods 2020; 287:113994. [PMID: 33068705 DOI: 10.1016/j.jviromet.2020.113994] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 10/09/2020] [Accepted: 10/09/2020] [Indexed: 10/23/2022]
Abstract
This study evaluated and compared the sensitivity profile of routine cell culture, nested VP1 amplification and one step real time RT PCR for Enteroviruses. Serially diluted spiked samples of four model viruses (EV71, CVA16, CVB5 and PV1) and 32 true positive samples including Poliovirus (PV1 & PV3), Coxsackie virus (CVB5, CVB3, CVB1 & CVA4, 10, 16), Echovirus (Echo 6, 7, 11, 13, 18, 25 & 30) and Enterovirus 71 (E71), and 32 true negative stool samples were subjected to cell culture, nested RT PCR and one step real time RT PCR. The result of sensitivity test indicated superior sensitivity with one step real time RT PCR (75 %, 24/32) against cell culture (71.9 %, 23/32) and nested RT PCR (65.6 %, 21/32). The most specific test was cell culture (100 %, 32/32), followed by nested RT PCR (96.9 %, 31/32). Positive predictive values were 100 %: 23/23, 95.5 %; 21/22 and 88.9 %; 24/27, for cell culture, nested RT PCR and one step real time RT PCR, respectively, and one step real time RT PCR had the highest negative predictive value (78.4 %, 29/37). Overall result indicate relatively high analytical sensitivity with all the tests, suggesting superior performance by cell culture. Therefore, cell culture is the gold standard. However, considering intensive nature of cell cultures and prolong window for results, it is wise to consider one step real time RT PCR in routine diagnosis for its added advantages. Meanwhile, selecting a combination of tests can maximize detection, depending on the laboratory strength.
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Affiliation(s)
- Auwal Idris Kabuga
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Nejati
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Parastoo Soheili
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Soodeh Yousefipoor
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Yousefi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Yaghoob Mollaiee
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Shohreh Shahmahmoodi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Food Microbiology Research Center, Tehran University of Medical Sciences, Tehran, Iran.
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25
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Kabuga AI, Nejati A, Arero AG, Jalilvand S, Mokhtari-Azad T, Sighaldeh SS, Wali UH, Shahmahmoodi S, El Zowalaty ME. Prevalence and Type Distribution of Human Papillomavirus
Recovered from the Uterine Cervix of Nigerian Women:
A Systematic Review and Meta-Analysis. Asian Pac J Cancer Prev 2020; 21:2837-2846. [PMID: 33112538 PMCID: PMC7798145 DOI: 10.31557/apjcp.2020.21.10.2837] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 04/13/2020] [Indexed: 01/22/2023] Open
Abstract
Background: Infection with an oncogenic type of human papillomavirus is a prerequisite for the development of precancerous cervical lesions and its subsequent progression to cervical cancer. With an alarming increase in the detection of other suspicious papillomavirus genotypes in both healthy and women with cervical lesions, there is a need for comprehensive data on cervical papillomavirus infection to address cervical cancer and other associated disease burden, especially in Sub-Sarahan Africa, where the bulk of the problem exists. The present study was conducted to develop comprehensive data on the prevalence and circulating genotypes of human papillomavirus in various risk categories in Nigeria. Methods: A systematic review and meta-analysis of peer-reviewed publications on cervical papillomavirus infection were performed. Relevant data were extracted from eligible studies published in PubMed, Web of Science, Embase, Scopus, and Google Scholar, from inception to July 31, 2019. The random-effect model was used to estimate the pooled prevalence. We identified 327 potential studies and pooled data from 18, involving 5697 women aged 15-86 years. Results: The overall pooled prevalence of cervical papillomavirus infection was 42% (95%CI: 30-54%) in the general population and 37% (95%CI: 25-50%) among women living with HIV/AIDs, with the predominance of genotypes 16, 18, 31, 35, 52, 58 and 45. The highest prevalence was observed in teenagers and young adults and the second peak in women 50 years and above. Conclusion: The prevalence of cervical human papillomavirus infection is cumulatively high in Nigeria and HIV is a strong co-factor. We, therefore, strongly recommend the co-screening of human papillomavirus and cervical cancer and integration of the intervention strategy into the existing HIV-care guideline in Nigeria.
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Affiliation(s)
- Auwal Idris Kabuga
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.,Department of Medical Microbiology and Parasitology, Faculty of Clinical Sciences, College of Health Sciences, Bayero University, Kano, PMB 3011 Kano State, Nigeria
| | - Ahmad Nejati
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Amanuel Godana Arero
- Students’ Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Somayeh Jalilvand
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Talat Mokhtari-Azad
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Shirin Shahbazi Sighaldeh
- Department of Reproductive Health, School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran
| | - Umma Hassan Wali
- Food Microbiology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Shohreh Shahmahmoodi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.,Food Microbiology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohamed E El Zowalaty
- Department of Clinical Sciences, College of Medicine,
University of Sharjah, Sharjah 27272, UAE.,Zoonosis Science Center, Department of Medical Biochemistry and Microbiology,
Uppsala University, Uppsala Se-75 123, Sweden.*
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26
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Yavarian J, Shafiei-Jandaghi NZ, Sadeghi K, Shatizadeh Malekshahi S, Salimi V, Nejati A, Aja-Minejad F, Ghavvami N, Saadatmand F, Mahfouzi S, Fateminasab G, Parhizgari N, Ahmadi A, Razavi K, Ghabeshi S, Saberian M, Zanjani E, Namazi F, Shahbazi T, Rezaie F, Erfani H, Gouya MM, Nasr Dadras M, Mokhtari Azad T. First Cases of SARS-CoV-2 in Iran, 2020: Case Series Report. Iran J Public Health 2020; 49:1564-1568. [PMID: 33083334 PMCID: PMC7554384 DOI: 10.18502/ijph.v49i8.3903] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In Jan 2020, the outbreak of the 2019 novel coronavirus (SARS-CoV-2) in Wuhan, Hubei Province of China spread increasingly to other countries worldwide which WHO declared it as a public health emergency of international concern. Iran was included in the affected countries. Throat swab specimens were collected and tested by using real-time reverse transcription PCR (RT-PCR) kit targeting the E region for screening and RNA dependent RNA polymerase for confirmation. Conventional RT-PCR was conducted for the N region and the PCR products were sequenced by Sanger sequencing. The first seven cases of SARS-CoV-2 infections were identified in Qom, Iran. This report describes the clinical and epidemiological features of the first cases of SARS-CoV-2 confirmed in Iran. Future research should focus on finding the routes of transmission for this virus, including the possibility of transmission from foreign tourists to identify the possible origin of SARS-CoV-2 outbreak in Iran.
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Affiliation(s)
- Jila Yavarian
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Kaveh Sadeghi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Vahid Salimi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Nejati
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Aja-Minejad
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Nastaran Ghavvami
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Saadatmand
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeedeh Mahfouzi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ghazal Fateminasab
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Najmeh Parhizgari
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Akramsadat Ahmadi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Kobra Razavi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Soad Ghabeshi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mostafa Saberian
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Elham Zanjani
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Namazi
- School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Tayebeh Shahbazi
- Department of Bacteriology, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Farshid Rezaie
- Iranian Center for Communicable Disease Control, Tehran, Iran
| | - Hossein Erfani
- Iranian Center for Communicable Disease Control, Tehran, Iran
| | | | | | - Talat Mokhtari Azad
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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27
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Shaghaghi M, Shahmahmoodi S, Nili A, Abolhassani H, Madani SP, Nejati A, Yousefi M, Kandelousi YM, Irannejad M, Shaghaghi S, Zahraei SM, Mahmoudi S, Gouya MM, Yazdani R, Azizi G, Parvaneh N, Aghamohammadi A. Vaccine-Derived Poliovirus Infection among Patients with Primary Immunodeficiency and Effect of Patient Screening on Disease Outcomes, Iran. Emerg Infect Dis 2020; 25:2005-2012. [PMID: 31625840 PMCID: PMC6810208 DOI: 10.3201/eid2511.190540] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Patients with immunodeficiency-associated vaccine-derived poliovirus (iVDPV) are potential poliovirus reservoirs in the posteradication era that might reintroduce polioviruses into the community. We update the iVDPV registry in Iran by reporting 9 new patients. In addition to national acute flaccid paralysis surveillance, cases were identified by screening nonparalyzed primary immunodeficiency (PID) patients. Overall, 23 iVDPV patients have been identified since 1995. Seven patients (30%) never had paralysis. Poliovirus screening accelerated the iVDPV detection rate in Iran after 2014.The iVDPV infection rate among nonparalyzed patients with adaptive PID was 3.1% (7/224), several folds higher than previous estimates. Severe combined immunodeficiency patients had the highest risk for asymptomatic infection (28.6%) compared with other PIDs. iVDPV2 emergence has decreased after the switch from trivalent to bivalent oral poliovirus vaccine in 2016. However, emergence of iVDPV1 and iVDPV3 continued. Poliovirus screening in PID patients is an essential step in the endgame of polio eradication.
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28
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Vasmehjani AA, Salehi-Vaziri M, Azadmanesh K, Nejati A, Pouriayevali MH, Gouya MM, Parsaeian M, Shahmahmoodi S. Efficient production of a lentiviral system for displaying Crimean-Congo hemorrhagic fever virus glycoproteins reveals a broad range of cellular susceptibility and neutralization ability. Arch Virol 2020; 165:1109-1120. [PMID: 32189084 DOI: 10.1007/s00705-020-04576-9] [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] [Received: 10/04/2019] [Accepted: 02/02/2020] [Indexed: 11/28/2022]
Abstract
Crimean-Congo hemorrhagic fever (CCHF) is a tick-borne disease with a mortality rate of up to 50% in humans. To avoid safety concerns associated with the use of live virus in virus neutralization assays and to detect human serum neutralizing antibodies, we prepared lentiviral particles containing the CCHF glycoprotein (lenti-CCHFV-GP). Incorporation of the GP into the lentiviral particle was confirmed by electron microscopy and Western blotting. Lenti-CCHFV-GP was found to be able to infect a wide range of cell lines, including BHK-21, HeLa, HepG2, and AsPC-1 cells. In addition, lenti-CCHFV-GP was successfully used as an alternative to CCHFV for the detection of neutralizing antibodies. Sera collected from CCHF survivors neutralized lenti-CCHFV-GP particles in a dose-dependent manner. Our results suggest that the lenti-CCHFV-GP pseudovirus can be used as a safe tool for neutralization assays in low-containment laboratories.
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Affiliation(s)
- Abbas Ahmadi Vasmehjani
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, 1417613151, Iran
| | - Mostafa Salehi-Vaziri
- Research Centre for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Tehran, Iran.,Department of Arboviruses and Viral Hemorrhagic Fevers (National Reference Laboratory), Pasteur Institute of Iran, Tehran, Iran
| | | | - Ahmad Nejati
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, 1417613151, Iran
| | - Mohammad Hassan Pouriayevali
- Department of Arboviruses and Viral Hemorrhagic Fevers (National Reference Laboratory), Pasteur Institute of Iran, Tehran, Iran
| | - Mohammad Mahdi Gouya
- National Communicable Disease Control Centre, Ministry of Health and Medical Education, Tehran, Iran
| | - Mahboubeh Parsaeian
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Shohreh Shahmahmoodi
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, 1417613151, Iran. .,Food Microbiology Research Center, Tehran University of Medical Sciences, Tehran, Iran.
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29
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Teymoori-Rad M, Mozhgani SH, Zarei-Ghobadi M, Sahraian MA, Nejati A, Amiri MM, Shokri F, Marashi SM. Integrational analysis of miRNAs data sets as a plausible missing linker between Epstein-Barr virus and vitamin D in relapsing remitting MS patients. Gene 2019; 689:1-10. [DOI: 10.1016/j.gene.2018.12.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 11/21/2018] [Accepted: 12/06/2018] [Indexed: 12/14/2022]
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30
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Rose H, Nejati A, Müller H. Magnetic C c/C s-corrector compensating for the chromatic aberration and the spherical aberration of electron lenses. Ultramicroscopy 2018; 203:139-144. [PMID: 30553616 DOI: 10.1016/j.ultramic.2018.11.014] [Citation(s) in RCA: 3] [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] [Received: 09/03/2018] [Revised: 11/17/2018] [Accepted: 11/23/2018] [Indexed: 11/16/2022]
Abstract
Aberration correction in transmission electron microscopy has proven feasible and useful over a large range of acceleration voltages. The spherical aberration has been corrected for beam energies from 15 kV [1] up to 1.2 MeV [2] while the correction of the chromatic aberration has been achieved for beam energies ranging from 20 kV[3] up to 300 kV[4]. Above this threshold the conventional correction principle based on mixed electric and magnetic focusing elements becomes infeasible with present technology [5]. For conventional electron sources at high voltages the relative energy width of the beam gets so small that chromatic correction becomes less important. Nevertheless, for new applications with pulsed electron sources with energy spreads in the order of 100 eV chromatic aberration will become a limiting factor even at high energies [6]. To enable chromatic aberration correction for such systems a novel type of a feasible, purely magnetic multipole aberration corrector with curved optic axis is proposed which is capable of compensating for the chromatic and spherical aberration up to several MeV.
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Affiliation(s)
- H Rose
- Ulm University, Meyerhofstr. 27, D-89081 Ulm, Germany.
| | - A Nejati
- CEOS GmbH, Englerstr. 28, D-69126 Heidelberg, Germany.
| | - H Müller
- CEOS GmbH, Englerstr. 28, D-69126 Heidelberg, Germany.
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Garoussi MT, Mehrzad J, Nejati A. Investigation of persistent infection of bovine viral diarrhea virus (BVDV) in Holstein dairy cows. Trop Anim Health Prod 2018; 51:853-858. [PMID: 30535897 DOI: 10.1007/s11250-018-1765-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Accepted: 11/25/2018] [Indexed: 11/25/2022]
Abstract
The aim of this study was to investigate the persistent infection (PI) of bovine viral diarrhea virus (BVDV) along with its coexistence between BVDV antibody titer and BVD virus in blood of Holstein dairy cows. Only large commercial farms (each contained < 1000-3000 unvaccinated cows) were included. There were 11 dairy cattle herds. They included nearly 20,000 dairy cows. Totally, 140 cows, > 3 months to almost 10 years old, were randomly sampled. Indirect enzyme-linked immunosorbent assay (ELISA) and reverse transcription-polymerase chain reaction (RT-PCR) were used to detect BVDV antibody and virus, respectively. The percent positivity (PP) < 14 and ≥ 14 values are interpreted negative and positive, respectively. Simultaneously, whole blood samples pooled in groups of 10 animals were used for molecular detection of BVDV. The results revealed that 138 (98.56%) out of 140 cows were positive for BVDV antibody, while the BVDV antigen was detected only in 2 (1.42%) cows, which were negative for BVDV antibody and so were considered as persistent infection (PI) cows. They were also retested 3 weeks apart. Since the results showed the strong coexistence between seropositivity and BVD virus, in the infected dairy cattle herds, the combination of simple ELISA and pooled whole blood RT-PCR strategy could be an achievable approach to detect PI animals.
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Affiliation(s)
- M T Garoussi
- Department of Theriogenology, Faculty of Veterinary Medicine, University of Tehran, Tehran, 14155-6453, Iran.
| | - J Mehrzad
- Section of Immunology, Department of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - A Nejati
- Section of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
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Mohammadi F, Khalili Z, Marashi SM, Ehsani A, Daneshpazhooh M, Teymoori-Rad M, Balighi K, Nejati A, Shahmahmoodi S, Izadidakhrabadi S, Mahmoudi H, Noormohammadpour P. The potential roles of herpesvirus and cytomegalovirus in the exacerbation of pemphigus vulgaris. Dermatol Pract Concept 2018; 8:262-271. [PMID: 30479853 PMCID: PMC6246069 DOI: 10.5826/dpc.0804a03] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 03/19/2018] [Accepted: 07/18/2018] [Indexed: 01/04/2023] Open
Abstract
Background Among exogenous etiologies, the critical role of microbial agents such as herpesviruses (HSV1/2) and cytomegalovirus (CMV) in triggering and flaring autoimmune conditions such as pemphigus vulgaris (PV) has been recently discovered. Objectives The present study aimed to investigate the plausible role of these viruses in the exacerbation of PV using serological and molecular methods. Patients/Methods Sixty patients with PV (30 with relapse type and 30 with remission type) were recruited for the purpose of this case-control study. Skin, mucosal, and throat specimens were obtained and examined for viruses by reverse transcriptase polymerase chain reaction. To determine the immunoglobulin G (IgG) titer, enzyme-linked immunosorbent assay was used. Results Desmoglein1-specific IgG was positive in 56.7% of patients with the relapse form and in 20.0% of those with the remission form indicating a significant difference across the 2 groups (P = 0.003), but the rate of positivity for desmoglein3-specific IgG in the relapse and remission types was 76.7% and 63.3%, respectively, with no significant difference (P = 0.260). There was no difference in the mean levels of HSV-IgG and CMV-IgG in the relapse and remission groups. HSV and CMV positivity in PV patients was independent of the site of the samples. Using the multivariable linear regression model, the level of CMV-IgG in PV patients was directly affected by female sex and advanced ages. Conclusions Our study could not demonstrate the role of HSV1/2 and CMV as triggering factors for PV exacerbation. Further studies are needed to evaluate the potential role of these viruses in PV exacerbation especially considering demographic variables.
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Affiliation(s)
- Fariba Mohammadi
- Autoimmune Bullous Disease Research Center, Department of Dermatology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Khalili
- Autoimmune Bullous Disease Research Center, Department of Dermatology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Sayed Mahdi Marashi
- Virology Department, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Amirhoushang Ehsani
- Autoimmune Bullous Disease Research Center, Department of Dermatology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Daneshpazhooh
- Autoimmune Bullous Disease Research Center, Department of Dermatology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Majid Teymoori-Rad
- Virology Department, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Kamran Balighi
- Autoimmune Bullous Disease Research Center, Department of Dermatology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Nejati
- Virology Department, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Shohreh Shahmahmoodi
- Virology Department, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Shima Izadidakhrabadi
- Virology Department, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Hamidreza Mahmoudi
- Autoimmune Bullous Disease Research Center, Department of Dermatology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Pedarm Noormohammadpour
- Autoimmune Bullous Disease Research Center, Department of Dermatology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
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Kakavand-Ghalehnoei R, Shoja Z, Najafi A, Mollahoseini MH, Shahmahmoodi S, Marashi SM, Nejati A, Jalilvand S. Prevalence of human herpesvirus-8 among HIV-infected patients, intravenous drug users and the general population in Iran. Sex Health 2018; 13:295-8. [PMID: 26886227 DOI: 10.1071/sh15192] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Accepted: 12/30/2015] [Indexed: 11/23/2022]
Abstract
Studies looking at the frequency of human herpesvirus-8 (HHV-8) among Iranian blood donors have produced conflicting results. The aim of this study was to investigate the prevalence of HHV-8 DNA by using polymerase chain reaction methods among 168 healthy individuals, 60 intravenous drug users and 100 HIV-infected patients from Iran. The prevalence of HHV-8 was significantly higher among intravenous drug users (13.3%) compared with the general population (3.6%; P=0.017). The HHV-8 genome was mostly detected among intravenous drug users who displayed high-risk sexual behaviours. Moreover, the HHV-8 genome was also detected in 8% of HIV-infected patients. The present study findings support the likelihood that the transmission of HHV-8 is via a sexual route in the Iranian population.
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Affiliation(s)
- Rezvan Kakavand-Ghalehnoei
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran 14155, Iran
| | - Zabihollah Shoja
- Department of Virology, Pasteur Institute of Iran, Tehran 1316943551, Iran
| | - Alireza Najafi
- Department of Immunology, Faculty of Medicine, Iran University of Medical Sciences, Tehran 157856171, Iran
| | - Mostafa Haji Mollahoseini
- Department of Immunology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran 1983963113, Iran
| | - Shohreh Shahmahmoodi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran 14155, Iran
| | - Sayed Mahdi Marashi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran 14155, Iran
| | - Ahmad Nejati
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran 14155, Iran
| | - Somayeh Jalilvand
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran 14155, Iran
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Nejati A, Shoja Z, Farahmand M, Shahmahmoodi S, Akrami K, Hamid KM, Tafakhori A, Doosti R, Sahraian MA, Marashi SM. Human herpes virus 6 status in relapsing-remitting multiple sclerosis patients. Intern Med J 2018; 47:339-341. [PMID: 28260258 DOI: 10.1111/imj.13363] [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] [Received: 04/05/2016] [Revised: 08/03/2016] [Accepted: 08/03/2016] [Indexed: 11/27/2022]
Affiliation(s)
- Ahmad Nejati
- Virology Department, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | | | - Mohammad Farahmand
- Virology Department, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Shohreh Shahmahmoodi
- Virology Department, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Kaveh Akrami
- Virology Department, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Kabir M Hamid
- International Campus (TUMS-IC), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Abbas Tafakhori
- Iranian Centre of Neurological Research, Department of Neurology, School of Medicine, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Rozita Doosti
- MS Research Centre, Neuroscience Institute, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Mohammad A Sahraian
- MS Research Centre, Neuroscience Institute, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Sayed M Marashi
- Virology Department, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
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35
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Yousefi M, Nejati A, Zahraei SM, Mahmoudi S, Parhizgari N, Farsani SMJ, Mahmoodi M, Nategh R, Shahmahmoodi S. Enteroviruses and Adenoviruses in stool specimens of paralytic children- can they be the cause of paralysis? Iran J Microbiol 2018; 10:194-201. [PMID: 30112158 PMCID: PMC6087694] [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: 11/15/2022]
Abstract
BACKGROUND AND OBJECTIVES Acute flaccid paralysis (AFP) is a complicated clinical syndrome with a wide range of potential etiologies. Several infectious agents including different virus families have been isolated from AFP cases. In most surveys, Non-polio Enteroviruses (NPEVs) have been detected as main infectious agents in AFP cases; however, there are also some reports about Adenovirus isolation in these patients. In this study, NPEVs and Adenoviruses in stool specimens of AFP cases with or without Residual Paralysis (RP) with negative results for poliovirus are investigated. MATERIALS AND METHODS Nucleic acid extractions from 55 AFP cases were examined by nested PCR or semi-nested PCR with specific primers to identify NPEVs or Adenoviruses, respectively. VP1 (for Enteroviruses) and hexon (for Adenoviruses) gene amplification products were sequenced and compared with available sequences in the GenBank. RESULTS From 55 fecal (37 RP+ and 18 RP-) specimens, 7 NPEVs (12.7%) (2 cases in RP+) and 7 Adenoviruses (12.7%) (4 cases in RP+) were identified. Echovirus types 3, 17 and 30, Coxsackie virus A8, and Enterovirus 80 were among NPEVs and Adenoviruses type 2 and 41 were also identified. CONCLUSION Our finding shows that NPEVs and Adenoviruses may be isolated from the acute flaccid paralyses but there is no association between the residual paralyses and virus detection.
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Affiliation(s)
- Maryam Yousefi
- Virology Department, School of Public Health, International Campus, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Nejati
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Mohsen Zahraei
- Vaccine Preventable Diseases Department, Center or Communicable Diseases Control, Ministry of Health and Medical Education, Tehran, Iran
| | - Sussan Mahmoudi
- Vaccine Preventable Diseases Department, Center or Communicable Diseases Control, Ministry of Health and Medical Education, Tehran, Iran
| | - Najmeh Parhizgari
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Mohammad Jazayeri Farsani
- Laboratory of Experimental Virology, Department of Medical Microbiology, Center for Infection and Immunity Amsterdam Academic Medical Center, University of Amsterdam, Netherlands
| | - Mahmood Mahmoodi
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Rakhshandeh Nategh
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Shohreh Shahmahmoodi
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran,Food Microbiology Research Center, Tehran University of Medical Sciences, Tehran, Iran,Corresponding author: Shohreh Shahmahmoodi, Ph.D, Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Food Microbiology Research Center, Tehran University of Medical Sciences, Tehran, Iran. Tel: +982188950595, Fax: +982188950595,
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36
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Nejati A, Soleimani M, Arefian E, Marashi SM, Tabatabaie H, Farahmand M, Shoja Z, Mahmoodi M, Nategh R, Shahmahmoodi S. The Effect of Different microRNA Backbones on Artificial miRNA Expression and Knockdown Activity Against HIV-1 Replication. Microrna 2017; 5:146-151. [PMID: 27397032 DOI: 10.2174/2211536605666160708235058] [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] [Received: 04/11/2016] [Revised: 06/16/2016] [Accepted: 06/27/2016] [Indexed: 11/22/2022]
Abstract
BACKGROUND Artificial microRNAs (miRNAs) are designed to develop an RNAi-based gene therapy. Recently, it has been suggested that the flanking sequences and terminal loop structure play a critical role in RNAi biogenesis and target recognition, but no extensive study regarding the different miRNA backbone for artificial miRNAs optimization has been conducted. OBJECTIVE We tested three artificial miRNAs with human hsa-miR30a (common miRNA), hsa-miR150 (T cell specific miRNA), and hsa-miR122 (liver specific miRNA) backbones in HEK-293T and Jurkat cell lines. METHODS Artificial miRNA processing and knockdown efficiency were analyzed by stem-loop RT-PCR, qRT-PCR, luciferase assay and target challenging. RESULTS We identified strikingly different RNAi activities among these different artificial miRNAs. Our results demonstrated that expression and function of art-miR150 was more than art-miR30 and artmiR122 in both HEK-293T and Jurkat cell lines. Since the main difference in these artificial miRNAs was flanking sequences and terminal loop structure, the change between the expression and function of artificial miRNAs can be attributed to these structures. CONCLUSION This study showed that expression of cell-specific artificial miRNA in target and nontarget cells is not different, but variation in flanking sequences and terminal loop can be involved in expression and function of artificial miRNAs. These results can be important for improving artificial miRNA design in RNAi-based gene therapy.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Shohreh Shahmahmoodi
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
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Shatizadeh-Malekshahi S, Ahmadkhaniha HR, Kiani SJ, Nejati A, Janani L, Yavarian J. No molecular evidence of Borna disease virus among schizophrenia and bipolar disorder patients in Iran. Iran J Microbiol 2017; 9:112-118. [PMID: 29214003 PMCID: PMC5715276] [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: 11/25/2022]
Abstract
BACKGROUND AND OBJECTIVES Viruses have been suggested as one of the risk factors for psychiatric disorders. Among infectious agents Borna disease virus (BDV) has been known as a neurotropic virus which is able to cause neurological disorders in different animals. Recently there were controversial findings about BDV association with pathogenesis of human psychotic disorders. MATERIALS AND METHODS Here we performed a nested reverse transcription polymerase chain reaction for detection of BDV P40 RNA in peripheral blood mononuclear cell samples of schizophrenia (SC), bipolar disorder (BD) patients and healthy controls (HCs). RESULTS Only one out of 120 (0.8 %) psychiatric patients and two samples (2.7%) in 75 HCs showed positive results. There were no significant molecular evidence of BDV infection in 120 psychotic patients (60 SC and 60 BD) and 75 matched HCs. CONCLUSION Our findings showed no association between BDV infection and pathogenesis of these psychiatric disorders. This is an interesting issue given both the as yet un-clarified role of BDV in human mental disorders and addressing patients in the so far under-investigating Middle East era.
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Affiliation(s)
| | - Hamid Reza Ahmadkhaniha
- Mental Health Research Center, Department of Psychiatry, Iran Mental Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Seyed Jalal Kiani
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Nejati
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Leila Janani
- Department of Biostatistics, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Jila Yavarian
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran,Corresponding author: Jila Yavarian MD, PhD, Porsina Ave, Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. Telefax: 00982188962343
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38
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Mostafa A, Jalilvand S, Shoja Z, Nejati A, Shahmahmoodi S, Sahraian MA, Marashi SM. Multiple sclerosis-associated retrovirus, Epstein-Barr virus, and vitamin D status in patients with relapsing remitting multiple sclerosis. J Med Virol 2017; 89:1309-1313. [PMID: 28165135 DOI: 10.1002/jmv.24774] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [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: 08/25/2016] [Revised: 01/04/2017] [Accepted: 01/10/2017] [Indexed: 11/07/2022]
Abstract
The relationship between infections and autoimmune diseases is complex and there are several reports highlighting the role of human endogenous retroviruses (HERVs) in these patients. The levels of multiple sclerosis-associated retrovirus (MSRV)-type DNA of Env gene was measured in peripheral blood mononuclear cells from 52 patients with relapsing-remitting multiple sclerosis (RRMS) and 40 healthy controls using specific quantitative PCR (qPCR) analysis. Furthermore, we analyzed the status of HERV-W/MSRV in these patients with regards to both EBV (DNA load and anti-EBNA1 IgG antibody) and vitamin D concentration. MSRV DNA copy number were significantly higher in RRMS patients than healthy controls (P < 0.0001). Interestingly, an inverse correlation was found between MSRV DNA copy number and serum vitamin D concentration (P < 0.01), but not for EBV load or anti-EBNA-1 IgG antibody.
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Affiliation(s)
- Aliehossadat Mostafa
- Virology Department, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Somayeh Jalilvand
- Virology Department, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | | | - Ahmad Nejati
- Virology Department, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Shohreh Shahmahmoodi
- Virology Department, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran.,Food Microbiology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Sayed Mahdi Marashi
- Virology Department, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
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39
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Nejati A, Shahmahmoodi S, Arefian E, Shoja Z, Marashi SM, Tabatabaie H, Mollaei-Kandelous Y, Soleimani M, Nategh R. Efficient inhibition of human immunodeficiency virus replication using novel modified microRNA-30a targeting 3'-untranslated region transcripts. Exp Ther Med 2016; 11:1833-1838. [PMID: 27168813 DOI: 10.3892/etm.2016.3121] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 02/04/2015] [Accepted: 12/22/2015] [Indexed: 12/15/2022] Open
Abstract
RNA interference (RNAi)-based gene therapy is currently considered to be a combinatorial anti-human immunodeficiency virus-1 (HIV-1) therapy. Although artificial polycistronic microRNAs (miRs) can reduce HIV-1 escape mutant variants, this approach may increase the risk of side effects. The present study aimed to optimize the efficiency of anti-HIV RNAi gene therapy in order to reduce the cell toxicity induced by multi-short hairpin RNA expression. An artificial miR-30a-3'-untranslated region (miR-3-UTR) obtained from a single RNA polymerase II was used to simultaneously target all viral transcripts. The results of the present study demonstrated that HIV-1 replication was significantly inhibited in the cells with the miR-3-UTR construct, suggesting that miR-3'-UTR may serve as a promising tool for RNAi-based gene therapy in the treatment of HIV-1.
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Affiliation(s)
- Ahmad Nejati
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran 14716-13151, Iran
| | - Shohreh Shahmahmoodi
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran 14716-13151, Iran
| | - Ehsan Arefian
- Biotechnology Center, College of Science, University of Tehran, Tehran 14176-14411, Iran; Department of Molecular Biology and Genetic Engineering, Stem Cell Technology Research Center, Tehran 19977-75555, Iran
| | - Zabihollah Shoja
- Virology Department, Pasteur Institute of Iran, Tehran 13169-43551, Iran
| | - Sayed-Mahdi Marashi
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran 14716-13151, Iran
| | - Hamideh Tabatabaie
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran 14716-13151, Iran
| | | | - Masoud Soleimani
- Department of Molecular Biology and Genetic Engineering, Stem Cell Technology Research Center, Tehran 19977-75555, Iran; Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran 14117-13116, Iran
| | - Rakhshandeh Nategh
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran 14716-13151, Iran
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40
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Asiyabi S, Nejati A, Shoja Z, Shahmahmoodi S, Jalilvand S, Farahmand M, Gorzin AA, Najafi A, Haji Mollahoseini M, Marashi SM. First report of human parvovirus 4 detection in Iran. J Med Virol 2016; 88:1314-8. [PMID: 26812938 DOI: 10.1002/jmv.24485] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/26/2016] [Indexed: 12/15/2022]
Abstract
Parvovirus 4 (PARV4) is an emerging and intriguing virus that currently received many attentions. High prevalence of PARV4 infection in high-risk groups such as HIV infected patients highlights the potential clinical outcomes that this virus might have. Molecular techniques were used to determine both the presence and the genotype of circulating PARV4 on previously collected serum samples from 133 HIV infected patients and 120 healthy blood donors. Nested PCR was applied to assess the presence of PARV4 DNA genome in both groups. PARV4 DNA was detected in 35.3% of HIV infected patients compared to 16.6% healthy donors. To genetically characterize the PARV4 genotype in these groups, positive samples were randomly selected and subjected for sequencing and phylogenetic analysis. All PARV4 sequences were found to be genotype 1 and clustered with the reference sequences of PARV4 genotype 1. J. Med. Virol. 88:1314-1318, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Sanaz Asiyabi
- Department of Virology, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Ahmad Nejati
- Department of Virology, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | | | - Shohreh Shahmahmoodi
- Department of Virology, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Somayeh Jalilvand
- Department of Virology, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Mohammad Farahmand
- Department of Virology, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Ali-Akbar Gorzin
- Department of Bacteriology and Virology, School of Medicine Shiraz, University of Medical Sciences, Shiraz, Iran
| | - Alireza Najafi
- Department of Immunology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mostafa Haji Mollahoseini
- Department of Immunology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sayed Mahdi Marashi
- Department of Virology, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
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Hamid KM, Nejati A, Shoja Z, Mollaei-Kandelousd Y, Doosti R, Mirshafiey A, Tafakhori A, Sahraian MA, Marashi SM. Quantitative Evaluation of BAFF, HMGB1, TLR 4 AND TLR 7 Expression in Patients with Relapsing Remitting Multiple Sclerosis. Iran J Allergy Asthma Immunol 2016; 15:75-81. [PMID: 26996115] [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] [Subscribe] [Scholar Register] [Accepted: 01/31/2016] [Indexed: 06/05/2023]
Abstract
Multiple sclerosis is a chronic inflammatory disease of the central nervous system characterized by a complex immune response. Because of the complex nature of MS pathogenesis, a panel of biomarkers derived from different platforms will be required to reflect disease-related alterations. Monitoring and evaluation of molecules associated with the pathogenesis of the disease would provide useful information on disease progression and therapeutic assessment. In view of this, we evaluated the mRNA expression levels of B-cell activating factor (BAFF), high mobility group box 1 (HMGB-1), Toll like receptor (TLR) 4 and TLR7 in MS. These molecules are implicated in the pathogenesis of MS; however, they havereceived little attention. PBMCs were isolated from whole blood of 84 Relapsing Remitting Multiple Sclerosis patients and 70 healthy controls. Relative quantitative RT-PCR was applied to quantify the transcriptional levels of the immune markers. The mRNA expression levels of TLR7 were significantly elevated in RRMS patients than healthy controls. Whereas, TLR4 expression was found to be significantly lower in the patients than control group. We found no difference analyzing the mRNA levels of BAFF and HMGB1. Our data highlights the immune marker correlates in RRMS patients. However, further in-depth studies are warranted to check for their reliability of biomarkers in autoimmune diseases such as MS.
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Affiliation(s)
- Kabir Magajir Hamid
- Department of Pathobiology, Immunology Division, School of Public Health, Tehran University of Medical Sciences- International Campus (TUMS-IC), Tehran, Iran AND Department of Immunology, Faculty of Medical Laboratory Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria
| | - Ahmad Nejati
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | | | - Rozita Doosti
- MS Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Abbas Mirshafiey
- Department of Pathobiology, Immunology Division, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Abbas Tafakhori
- Iranian Center of Neurological Research, Department of Neurology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Sahraian
- MS Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Sayed Mahdi Marashi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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Shirsavar R, Nasiri M, Amjadi A, Nejati A, Sobhani SO, Habibi M. Rotation induced by uniform and non-uniform magnetic fields in a conducting fluid carrying an electric current. RSC Adv 2016. [DOI: 10.1039/c6ra24346k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
External magnetic field induces controllable rotation in a conducting fluid carrying an electric current.
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Affiliation(s)
- R. Shirsavar
- Department of Physics
- Faculty of Science
- University of Zanjan
- Zanjan
- Iran
| | - M. Nasiri
- Department of Physics
- Faculty of Science
- University of Zanjan
- Zanjan
- Iran
| | - A. Amjadi
- Department of Physics
- Sharif University of Technology
- Tehran
- Iran
| | - A. Nejati
- Physikalisches Institut and Bethe Center for Theoretical Physics
- Universität Bonn
- Germany
| | - S. O. Sobhani
- Department of Physics
- Sharif University of Technology
- Tehran
- Iran
- Department of Energy Engineering
| | - Mehdi Habibi
- Condensed Matter National Laboratory
- IPM
- Tehran
- Iran
- Institute of Physics
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Nejati A, Shoja Z, Shahmahmoodi S, Tafakhori A, Mollaei-Kandelous Y, Rezaei F, Hamid KM, Mirshafiey A, Doosti R, Sahraian MA, Mahmoudi M, Shokri F, Emery V, Marashi SM. EBV and vitamin D status in relapsing-remitting multiple sclerosis patients with a unique cytokine signature. Med Microbiol Immunol 2015; 205:143-54. [PMID: 26365612 DOI: 10.1007/s00430-015-0437-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [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: 07/12/2015] [Accepted: 09/08/2015] [Indexed: 12/21/2022]
Abstract
Multiple sclerosis, a debilitating autoimmune and inflammatory disease of the central nervous system, is associated with both infectious and non-infectious factors. We investigated the role of EBV infection, vitamin D level, and cytokine signature in MS patients. Molecular and serological assays were used to investigate immune biomarkers, vitamin D level, and EBV status in 83 patients with relapsing-remitting multiple sclerosis and 62 healthy controls. In total, 98.8 % of MS patients showed a history of EBV exposure compared to 88.6 % in the healthy group (p = 0.005). EBV DNA load was significantly higher in MS patients than healthy subjects (p < 0.0001). Using a panel of biomarkers, we found a distinct transcriptional signature in MS patients compared to the healthy group with mRNA levels of CD73, IL-6, IL-23, IFN-γ, TNF-α, IL-15, IL-28, and IL-17 significantly elevated in MS patients (p < 0.0001). In contrast, the mRNA levels for TGF-β, IDO, S1PR1, IL-10, and CCL-3 were significantly lower in MS patients compared to healthy controls (p < 0.0001). No significant differences were found with the mRNA levels of IL-13, CCL-5, and FOXP3. Interestingly, in MS patients we found an inverse correlation between vitamin D concentration and EBV load, but not EBNA-1 IgG antibody levels. Our data highlight biomarker correlates in MS patients together with a complex interplay between EBV replication and vitamin D levels.
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Affiliation(s)
- Ahmad Nejati
- Virology Department, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, 14155-6446, Iran
| | | | - Shohreh Shahmahmoodi
- Virology Department, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, 14155-6446, Iran
| | - Abbas Tafakhori
- Iranian Centre of Neurological Research, Department of Neurology, School of Medicine, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | | | - Farhad Rezaei
- Virology Department, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, 14155-6446, Iran
| | - Kabir Magaji Hamid
- Tehran University of Medical Sciences, International Campus (TUMS-IC), Tehran, Iran
| | - Abbas Mirshafiey
- Immunology Department, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Rozita Doosti
- MS Research Center, Neuroscience Institute, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Mohammad Ali Sahraian
- MS Research Center, Neuroscience Institute, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Mahmood Mahmoudi
- Department of Epidemiology and Biostatistics, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Fazel Shokri
- Immunology Department, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Vince Emery
- Department of Microbial and Cellular Sciences, University of Surrey, Guildford, Surrey, GU2 7XH, UK
| | - Sayed Mahdi Marashi
- Virology Department, School of Public Health (SPH), Tehran University of Medical Sciences (TUMS), Tehran, 14155-6446, Iran. .,Tehran University of Medical Sciences, International Campus (TUMS-IC), Tehran, Iran.
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Ghasemi Y, Makvandi M, Samarbafzadeh AR, Nejati A, Najafifard S, Neisi N, Rasti M, Ahmadi K, Shamsizadeh A, Nikfar R. Serotype determination of adenoviruses in children with respiratory infection. Indian J Pediatr 2014; 81:639-43. [PMID: 24522944 DOI: 10.1007/s12098-013-1286-2] [Citation(s) in RCA: 5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2013] [Accepted: 10/23/2013] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To determine adenovirus serotypes among children with acute respiratory infection (ARI) in Khoozestan province, Iran during years 2010-2011. METHODS One hundred sixty three nasopharyngeal swabs were collected from children between 1 and 15 y who were hospitalized for the acute respiratory infection. The viral DNA was extracted from the nasopharyngeal swabs and adenoviruses were detected by Nested PCR. Positive PCR samples were sequenced in order to confirm the adenovirus serotypes. RESULTS Out of 163 samples, 30 (18.4 %) were positive for adenoviruses by nested PCR. Twenty two PCR products were sequenced and recognized as Ad5 and Ad2 serotypes including 19 (86.3 %) Ad5 and 3 (13.7 %) Ad2. CONCLUSIONS This study reveals that adenoviruses with Ad5 predominance are important cause of respiratory tract infection in children.
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Affiliation(s)
- Yusuf Ghasemi
- Department of Virology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Nejati A, Khalaj S, Azizkhani R, Shahryarian S, Kolahdouzan M, Hossein MS. Evaluating validity of clinical criteria for requesting chest X-rays in trauma patients referred to emergency room. Adv Biomed Res 2012; 1:22. [PMID: 23210081 PMCID: PMC3507021 DOI: 10.4103/2277-9175.98125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 12/25/2011] [Accepted: 02/23/2012] [Indexed: 12/01/2022] Open
Abstract
Background: Our goal was to identify the clinical criteria for requesting the chest X-ray in patients with blunt trauma and whether its findings such as clinical signs with a high sensitivity could be used to codify the final criteria. Materials and Methods: 386 patients with multiple trauma or blunt chest trauma examined by a physician and the injury mechanism, vital signs, O2 saturation, auscultation findings, abrasions and ecchymosis, crepitation, tenderness on palpation, and pain on lateral compression were noted. The physician's clinical judgment on the necessity of a chest X-ray was also noted in a questionnaire. After taking the X-ray, a digital photo was taken and showed to a radiologist to report any significant chest injury. Data were collected and the positive and negative predictive values, sensitivity and specificity were estimated. Results: 350 males (90.9%) and 35 females (9.1%) with the mean age of 47.1 ± 15.5 years old were evaluated. Falling down (37.7%) was the major mechanism of injury and chest pain (48%) the first complaint of patients. In 87.3% of the chest X-rays, there was no abnormal finding. Among several pathological findings in the chest X-rays, hemothorax, and rib fracture (each with 3.4% prevalence) had a higher prevalence. Tenderness on palpation with clinical judgment had a higher sensitivity about 95% and higher specificity about 100% in crepitation detected. Conclusion: Results showed the combination of positive chest pain and tachypnea in the patients could identify a significant chest injury with 100% sensitivity. More studies on this issue are warranted.
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Affiliation(s)
- A Nejati
- Department of Emergency Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Nejati A, Makvandi M, Samarbafzadeh A, Neisi N, Moradzadegan H. Molecular epidemiology of hepatitis A virus in patients in the ahwaz region of Iran. J Med Virol 2012; 84:582-6. [DOI: 10.1002/jmv.23238] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Moharari RS, Soleymani HA, Nejati A, Rezaeefar A, Khashayar P, Meysamie AP. Evaluation of morning report in an emergency medicine department. Emerg Med J 2011; 27:32-6. [PMID: 20029004 DOI: 10.1136/emj.2008.067256] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Morning report is considered as an important educational tool in different branches of medicine. The purpose of the present study was to examine the method of case selection, the leadership, the participant's satisfaction and the educational value of morning report held in our centre. METHOD In September 2007, a formal feedback about the morning report was provided by questionnaire surveys. The data on the method of case selection, the leadership, the participant's satisfaction and the educational value of the sessions were collected from the residents, medical students and the academic staff in emergency medicine department. Each questionnaire also contained an open-ended question, asking for the responders' suggestions for improving these sessions. RESULTS 73.2% of the responders were satisfied with the current model of the conference hall. The data showed that 46.3% of the participants believed these sessions are held for giving the medical team the required information and 65.9% for solving the patient's problems. The data showed that the participants had evaluated the presentation strategy to be good; however, the presentation pattern was reported to be traditional and based on differential diagnosis in 53.7% of the cases and modern problem oriented in only 39%. CONCLUSION Most participants considered morning report sessions held in our hospital to be effective in the way it is; however, issues such as communication skill, emergency department management, critical thinking, ethics, professionalism and evidence-based medicine should also be added to the sessions.
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Affiliation(s)
- R S Moharari
- Research and Development Center, Sina Hospital, Imam Khomeini St, Tehran 11367, Iran.
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Moharari RS, Khademhosseini P, Espandar R, Soleymani HA, Talebian MT, Khashayar P, Nejati A. Intra-articular lidocaine versus intravenous meperidine/diazepam in anterior shoulder dislocation: a randomised clinical trial. Emerg Med J 2008; 25:262-4. [DOI: 10.1136/emj.2007.051060] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Khalaj S, Nejati A, Moharari R, Narenjbon S, Abbasian A. 149: Effect of Advanced Cardiac Life Support Courses on General Practitioners Working in EDs in Iran. Ann Emerg Med 2008. [DOI: 10.1016/j.annemergmed.2008.01.117] [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: 10/22/2022]
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