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Parikh R, Yousefi M, Curran D, Widenmaier R. The Impact of the COVID-19 Pandemic on the Incidence of Herpes Zoster: A Narrative Literature Review. Infect Dis Ther 2024; 13:447-461. [PMID: 38441844 DOI: 10.1007/s40121-024-00924-3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 01/15/2024] [Indexed: 03/27/2024] Open
Abstract
Coronavirus disease 2019 (COVID-19) has had a broad impact on health services and health outcomes. During the pandemic, there were numerous reports of herpes zoster (HZ) in people with COVID-19 and in COVID-19 vaccine recipients. The aim of this review is to elucidate the global effects of the COVID-19 pandemic on HZ. It is postulated that severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection produces an immunosuppressive state that favours varicella zoster virus (VZV) reactivation. Three large cohort studies (a multinational study and studies from the USA and Spain) that excluded individuals vaccinated against HZ reported significantly increased risk of HZ following COVID-19 infection, especially in people aged ≥ 50 years. In contrast, a large study from Israel that did not consider HZ vaccination status reported no such increase. Cases of HZ following COVID-19 vaccination have been reported and may be the result of attenuated cell-mediated immunity. This phenomenon appears to vary by vaccine type. Some (but not all) large analyses have reported a significant positive relationship between receipt of mRNA vaccines for COVID-19 and development of HZ. These include analyses of health records databases in Israel and Hong Kong and of spontaneous case reports in the US Vaccine Adverse Event Reporting System (VAERS) database. Routine vaccinations, including shingles vaccine programmes, were disrupted by the COVID-19 pandemic. It is estimated that missed shingles vaccinations may have resulted in 63,117 avoidable HZ cases in the USA. Now that the World Health Organization has declared an end to the COVID-19 pandemic as a health emergency and routine vaccination services have resumed, there is a need to increase awareness of HZ and HZ vaccination.Graphical abstract available for this article.
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Rufyikiri AS, Martinez R, Addo PW, Wu BS, Yousefi M, Malo D, Orsat V, Vidal SM, Fritz JH, MacPherson S, Lefsrud M. Germicidal efficacy of continuous and pulsed ultraviolet-C radiation on pathogen models and SARS-CoV-2. Photochem Photobiol Sci 2024; 23:339-354. [PMID: 38308169 DOI: 10.1007/s43630-023-00521-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 12/12/2023] [Indexed: 02/04/2024]
Abstract
Ultraviolet radiation's germicidal efficacy depends on several parameters, including wavelength, radiant exposure, microbial physiology, biological matrices, and surfaces. In this work, several ultraviolet radiation sources (a low-pressure mercury lamp, a KrCl excimer, and four UV LEDs) emitting continuous or pulsed irradiation were compared. The greatest log reductions in E. coli cells and B. subtilis endospores were 4.1 ± 0.2 (18 mJ cm-2) and 4.5 ± 0.1 (42 mJ cm-2) with continuous 222 nm, respectively. The highest MS2 log reduction observed was 2.7 ± 0.1 (277 nm at 3809 mJ cm-2). Log reductions of SARS-CoV-2 with continuous 222 nm and 277 nm were ≥ 3.4 ± 0.7, with 13.3 mJ cm-2 and 60 mJ cm-2, respectively. There was no statistical difference between continuous and pulsed irradiation (0.83-16.7% [222 nm and 277 nm] or 0.83-20% [280 nm] duty rates) on E. coli inactivation. Pulsed 260 nm radiation (0.5% duty rate) at 260 nm yielded significantly greater log reduction for both bacteria than continuous 260 nm radiation. There was no statistical difference in SARS-CoV-2 inactivation between continuous and pulsed 222 nm UV-C radiation and pulsed 277 nm radiation demonstrated greater germicidal efficacy than continuous 277 nm radiation. Greater radiant exposure for all radiation sources was required to inactivate MS2 bacteriophage. Findings demonstrate that pulsed irradiation could be more useful than continuous UV radiation in human-occupied spaces, but threshold limit values should be respected. Pathogen-specific sensitivities, experimental setup, and quantification methods for determining germicidal efficacy remain important factors when optimizing ultraviolet radiation for surface decontamination or other applications.
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Affiliation(s)
- Anne Sophie Rufyikiri
- Department of Bioresource Engineering, Macdonald Campus, McGill University, 21111 Lakeshore Road, Sainte-Anne-de-Bellevue, QC, H9X 3V9, Canada
| | - Rebecca Martinez
- Department of Bioresource Engineering, Macdonald Campus, McGill University, 21111 Lakeshore Road, Sainte-Anne-de-Bellevue, QC, H9X 3V9, Canada
| | - Philip W Addo
- Department of Bioresource Engineering, Macdonald Campus, McGill University, 21111 Lakeshore Road, Sainte-Anne-de-Bellevue, QC, H9X 3V9, Canada
| | - Bo-Sen Wu
- Department of Bioresource Engineering, Macdonald Campus, McGill University, 21111 Lakeshore Road, Sainte-Anne-de-Bellevue, QC, H9X 3V9, Canada
| | - Mitra Yousefi
- Dahdaleh Institute of Genomic Medicine and McGill University Research Centre on Complex Traits, Life Sciences Complex, McGill University, 3649 Promenade Sir William Osler, Montreal, QC, H3G 0B1, Canada
| | - Danielle Malo
- Dahdaleh Institute of Genomic Medicine and McGill University Research Centre on Complex Traits, Life Sciences Complex, McGill University, 3649 Promenade Sir William Osler, Montreal, QC, H3G 0B1, Canada
- Department of Medicine, McGill University, 3649 Promenade Sir William Osler, Montreal, QC, H3G 0B1, Canada
- Department of Human Genetics, McGill University, 3649 Promenade Sir William Osler, Montreal, QC, H3G 0B1, Canada
| | - Valérie Orsat
- Department of Bioresource Engineering, Macdonald Campus, McGill University, 21111 Lakeshore Road, Sainte-Anne-de-Bellevue, QC, H9X 3V9, Canada
| | - Silvia M Vidal
- Dahdaleh Institute of Genomic Medicine and McGill University Research Centre on Complex Traits, Life Sciences Complex, McGill University, 3649 Promenade Sir William Osler, Montreal, QC, H3G 0B1, Canada
- Department of Human Genetics, McGill University, 3649 Promenade Sir William Osler, Montreal, QC, H3G 0B1, Canada
- Department of Microbiology and Immunology, McGill University, 3775 Rue University, Montreal, QC, H3A 2B4, Canada
| | - Jörg H Fritz
- Dahdaleh Institute of Genomic Medicine and McGill University Research Centre on Complex Traits, Life Sciences Complex, McGill University, 3649 Promenade Sir William Osler, Montreal, QC, H3G 0B1, Canada
- Department of Microbiology and Immunology, McGill University, 3775 Rue University, Montreal, QC, H3A 2B4, Canada
| | - Sarah MacPherson
- Department of Bioresource Engineering, Macdonald Campus, McGill University, 21111 Lakeshore Road, Sainte-Anne-de-Bellevue, QC, H9X 3V9, Canada
| | - Mark Lefsrud
- Department of Bioresource Engineering, Macdonald Campus, McGill University, 21111 Lakeshore Road, Sainte-Anne-de-Bellevue, QC, H9X 3V9, Canada.
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Yousefi M, Khoshnevis SJ, Seraj M, Abbasvandi F, Sadeghi P, Khoshnevis Z, Akbari A, Hadi A, Akbari ME. Primary repair with no flaps for lower lip defects (30-80 %) after cancer excision. Asian J Surg 2024; 47:995-998. [PMID: 38160160 DOI: 10.1016/j.asjsur.2023.12.124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 07/02/2023] [Accepted: 12/15/2023] [Indexed: 01/03/2024] Open
Abstract
Reconstruction of the lip is a necessary procedure when lip tumors are excised. Although many good techniques have been described, they often have disadvantages such as necrosis and extensive suture lines. In our approach, we aim to minimize the suture line and avoid tissue necrosis for medium-sized lip defects (30-80 %). This is a surgical technique report from a single center. After tumor resection, we made a bilateral 15 mm horizontal skin and mucosa incision from the angles of the lip to the lateral sides. The mucosa and skin were dissected from the underlying muscle, and the muscle was cut approximately 15 mm on each side. The lip defect was then closed and sutured in four layers. Finally, the released mucosa was sutured to the corner of the incised skin. We followed the patients for 36 months and found that their speech intelligibility, sensation, mobility, and aesthetic satisfaction were preserved. The scars were also less pronounced compared to flaps, and there were no signs of edema or drooling. In conclusion, our technique offers many advantages for moderate defects of lower lip tumors. By avoiding the use of flaps, we eliminate the complications associated with flap surgery while achieving aesthetically satisfactory results. However, further evaluation by other surgeons is necessary to fully examine the technique's benefits.
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Affiliation(s)
- M Yousefi
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - S J Khoshnevis
- Department of Vascular Surgery, Shahid Beheshti University of Medical Sciences, Shohadaye Tajrish Hospital, Tehran, Iran
| | - M Seraj
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - F Abbasvandi
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - P Sadeghi
- Plastic Surgery Department, Cleveland, OH, USA
| | - Z Khoshnevis
- School of Architecture and Urban Design, University of Science and Technology, Tehran, Iran
| | - A Akbari
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - A Hadi
- Department of Prosthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - M E Akbari
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Kim JEJ, Tung LT, Jiang RR, Yousefi M, Liang Y, Malo D, Vidal SM, Nijnik A. Dysregulation of B lymphocyte development in the SKG mouse model of rheumatoid arthritis. Immunology 2023; 170:553-566. [PMID: 37688495 DOI: 10.1111/imm.13691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 08/22/2023] [Indexed: 09/11/2023] Open
Abstract
Rheumatoid arthritis is a chronic and systemic inflammatory disease that affects approximately 1% of the world's population and is characterised by joint inflammation, the destruction of articular cartilage and bone, and many potentially life-threatening extraarticular manifestations. B lymphocytes play a central role in the pathology of rheumatoid arthritis as the precursors of autoantibody secreting plasma cells, as highly potent antigen-presenting cells, and as a source of various inflammatory cytokines, however, the effects of rheumatoid arthritis on B lymphocyte development remain poorly understood. Here, we analyse B lymphocyte development in murine models of rheumatoid arthritis, quantifying all the subsets of B cell precursors in the bone marrow and splenic B cells using flow cytometry. We demonstrate a severe reduction in pre-B cells and immature B cells in the bone marrow of mice with active disease, despite no major effects on the mature naïve B cell numbers. The loss of B cell precursors in the bone marrow of the affected mice was associated with a highly significant reduction in the proportion of Ki67+ cells, indicating impaired cell proliferation, while the viability of the B cell precursors was not significantly affected. We also observed some mobilisation of the B cell precursor cells into the mouse spleen, demonstrated with flow cytometry and pre-B colony forming units assays. In summary, the current work demonstrates a severe dysregulation in B lymphocyte development in murine rheumatoid arthritis, with possible implications for B cell repertoire formation, tolerance induction, and disease mechanisms.
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Affiliation(s)
- Joo Eun June Kim
- Department of Physiology, McGill University, Montreal, Quebec, Canada
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
| | - Lin Tze Tung
- Department of Physiology, McGill University, Montreal, Quebec, Canada
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
| | - Roselyn R Jiang
- Department of Physiology, McGill University, Montreal, Quebec, Canada
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
| | - Mitra Yousefi
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
- Department of Human Genetics, McGill University, Montreal, Quebec, Canada
| | - Yue Liang
- Department of Physiology, McGill University, Montreal, Quebec, Canada
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
| | - Danielle Malo
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
- Department of Human Genetics, McGill University, Montreal, Quebec, Canada
- Department of Medicine, McGill University, Montreal, Quebec, Canada
| | - Silvia M Vidal
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
- Department of Human Genetics, McGill University, Montreal, Quebec, Canada
- Department of Microbiology and Immunology, McGill University, Montreal, Quebec, Canada
| | - Anastasia Nijnik
- Department of Physiology, McGill University, Montreal, Quebec, Canada
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
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AbdElFatah T, Jalali M, Yedire SG, I Hosseini I, Del Real Mata C, Khan H, Hamidi SV, Jeanne O, Siavash Moakhar R, McLean M, Patel D, Wang Z, McKay G, Yousefi M, Nguyen D, Vidal SM, Liang C, Mahshid S. Nanoplasmonic amplification in microfluidics enables accelerated colorimetric quantification of nucleic acid biomarkers from pathogens. Nat Nanotechnol 2023; 18:922-932. [PMID: 37264088 DOI: 10.1038/s41565-023-01384-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 03/22/2023] [Indexed: 06/03/2023]
Abstract
Deployment of nucleic acid amplification assays for diagnosing pathogens in point-of-care settings is a challenge due to lengthy preparatory steps. We present a molecular diagnostic platform that integrates a fabless plasmonic nano-surface into an autonomous microfluidic cartridge. The plasmonic 'hot' electron injection in confined space yields a ninefold kinetic acceleration of RNA/DNA amplification at single nucleotide resolution by one-step isothermal loop-mediated and rolling circle amplification reactions. Sequential flow actuation with nanoplasmonic accelerated microfluidic colorimetry and in conjugation with machine learning-assisted analysis (using our 'QolorEX' device) offers an automated diagnostic platform for multiplexed amplification. The versatility of QolorEX is demonstrated by detecting respiratory viruses: SARS-CoV-2 and its variants at the single nucleotide polymorphism level, H1N1 influenza A, and bacteria. For COVID-19 saliva samples, with an accuracy of 95% on par with quantitative polymerase chain reaction and a sample-to-answer time of 13 minutes, QolorEX is expected to advance the monitoring and rapid diagnosis of pathogens.
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Affiliation(s)
- Tamer AbdElFatah
- Department of Bioengineering, McGill University, Montreal, Quebec, Canada
| | - Mahsa Jalali
- Department of Bioengineering, McGill University, Montreal, Quebec, Canada
| | | | - Imman I Hosseini
- Department of Bioengineering, McGill University, Montreal, Quebec, Canada
| | | | - Haleema Khan
- Department of Bioengineering, McGill University, Montreal, Quebec, Canada
| | - Seyed Vahid Hamidi
- Department of Bioengineering, McGill University, Montreal, Quebec, Canada
| | - Olivia Jeanne
- Department of Bioengineering, McGill University, Montreal, Quebec, Canada
| | | | - Myles McLean
- Department of Medicine, McGill University, Montreal, Quebec, Canada
- Lady Davis Institute for Medical Research and McGill Centre for Viral Diseases, Jewish General Hospital, Montreal, Quebec, Canada
| | - Dhanesh Patel
- Department of Human Genetics, McGill University, Montreal, Quebec, Canada
- Dahdaleh Institute of Genomic Medicine, McGill University, Montreal, Quebec, Canada
| | - Zhen Wang
- Department of Medicine, McGill University, Montreal, Quebec, Canada
- Lady Davis Institute for Medical Research and McGill Centre for Viral Diseases, Jewish General Hospital, Montreal, Quebec, Canada
| | - Geoffrey McKay
- Meakins-Christie Laboratories, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Mitra Yousefi
- Department of Human Genetics, McGill University, Montreal, Quebec, Canada
| | - Dao Nguyen
- Department of Medicine, McGill University, Montreal, Quebec, Canada
- Meakins-Christie Laboratories, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Silvia M Vidal
- Department of Human Genetics, McGill University, Montreal, Quebec, Canada
- Dahdaleh Institute of Genomic Medicine, McGill University, Montreal, Quebec, Canada
| | - Chen Liang
- Department of Medicine, McGill University, Montreal, Quebec, Canada
- Lady Davis Institute for Medical Research and McGill Centre for Viral Diseases, Jewish General Hospital, Montreal, Quebec, Canada
| | - Sara Mahshid
- Department of Bioengineering, McGill University, Montreal, Quebec, Canada.
- Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada.
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Arefinejad A, Khodadadi M, Zeinali T, Yousefi M. Phenotypic and genotypic evaluation of ESBL- and AmpC-producing Escherichia coli isolated from chicken distributed in Birjand, East of Iran. AAlim 2023. [DOI: 10.1556/066.2022.00164] [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] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
AbstractThe aims of the present study were to detect Escherichia coli in chicken distributed in Birjand, to investigate the prevalence of ESBL and AmpC beta-lactamases producers among them, and to identify their antibiotic resistance patterns. The study was conducted on 150 chicken samples, and the antimicrobial susceptibility patterns were determined by the Kirby–Bauer disk diffusion method. Phenotypic identification of ESBL and AmpC was performed by the combined disk test (CDT). The specific genes of ESBL and AmpC beta-lactamases were detected using two multiplex PCR (m-PCR) assays. According to our results, 116 out of 150 chicken samples were contaminated with E. coli. Moreover, the highest resistance of E. coli isolates was observed to trimethoprim/sulfamethoxazole (46%), ampicillin (40%), and amoxicillin (29.33%). In the molecular confirmation step, among 17 (11.33%) beta-lactamase producers, five samples contained the blaCTX-M14 gene (3.33%), two samples contained blaDHA (1.33%) and blaCTX-M3 gene (1.33%), and just one sample carried blaCMY-2 gene (0.66%). The blaSHV and blaTEM genes were not detected in any strains isolated from the chicken samples. This study showed the contamination of chicken with antibiotic-resistant E. coli. Therefore, it is recommended that veterinarians be more precautious in prescribing antibiotics.
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Affiliation(s)
- A. Arefinejad
- Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran
| | - M. Khodadadi
- Department of Environmental Health Engineering, School of Health, Medical Toxicology and Drug Abuse Research Center (MTDRC), Birjand University of Medical Sciences, Birjand, Iran
| | - T. Zeinali
- Department of Public Health, School of Health, Social Determinants of Health Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - M. Yousefi
- Infectious Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
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Shahin R, Yousefi M, Ziyadi H, Bikhof M, Hekmati M. pH-Responsive and magnetic Fe3O4@UiO-66-NH2@PEI nanocomposite as drug nanocarrier: Loading and release study of Imatinib. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Hashem Boroojerdi M, Rahimi A, Roostayi MM, Talebian Moghaddam S, Yousefi M, Norouzi M, Akbarzadeh Baghban A. The occurrence of flexion-relaxation phenomenon in elite cyclists during trunk forward bending. Sports Biomech 2022:1-13. [PMID: 36239128 DOI: 10.1080/14763141.2022.2126326] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 09/14/2022] [Indexed: 10/17/2022]
Abstract
Flexion-relaxation phenomenon (FRP) is a well-known phenomenon in spinal extensor muscles. According to the literature, prolonged flexed posture leads to creep phenomenon and affects the active and passive neuromuscular control of the spinal column. The purpose of this study was to investigate FRP occurrence in elite cyclists that prolonged flexion posture is an integral part of their professional life. Their muscles' contraction pattern during forward bending was also compared. Electromyography (EMG) was recorded during flexion and extension from standing position in thoracic erector spinae (TES), lumbar erector spinae (LES) and gluteus maximus (Gluteus max) in 15 healthy male elite cyclists. In addition, the kinematic data related to the trunk angles were simultaneously recorded by a motion analysis system. Two-way ANOVA was used to assess the effects of muscle group and direction of movement on maximum amplitude of EMG activity. Among 15 cyclists, FRP was detectable in 60%, 87% and 73% of the participants in TES, LES and Gluteus max, respectively, and happened between 74% and 82% of the trunk flexion. There was no statistically significant difference in onset and offset of muscles FRP. Despite prolong hyper kyphotic posture, FRP was identifiable in TES, LES and Gluteus max muscles of elite cyclists.
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Affiliation(s)
- M Hashem Boroojerdi
- Department of Physiotherapy, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - A Rahimi
- Department of Physiotherapy, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - M M Roostayi
- Department of Physiotherapy, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - S Talebian Moghaddam
- Department of Physiotherapy, Faculty of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
| | - M Yousefi
- Department of Physiotherapy, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- School of Physical Education, University of Birjand, Birjand, Iran
| | - M Norouzi
- Department of Physiotherapy, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - A Akbarzadeh Baghban
- Department of Biostatistics, School of Paramedical Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Ebrahimabadi Z, Naimi S, Rahimi A, Yousefi M, Wikstrom E. Postural phase duration during self-generated and triggered gait initiation in patients with chronic ankle instability. Sci Sports 2022. [DOI: 10.1016/j.scispo.2022.08.001] [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: 10/14/2022]
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Haskey N, Ye J, Estaki M, Verdugo Meza AA, Barnett JA, Yousefi M, Birnie BW, Gruenheid S, Ghosh S, Gibson DL. A Mediterranean-like fat blend protects against the development of severe colitis in the mucin-2 deficient murine model. Gut Microbes 2022; 14:2055441. [PMID: 35471119 PMCID: PMC9045830 DOI: 10.1080/19490976.2022.2055441] [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] [Indexed: 02/04/2023] Open
Abstract
There is a growing appreciation that the interaction between diet, the gut microbiota and the immune system contribute to the development and progression of inflammatory bowel disease (IBD). A mounting body of scientific evidence suggests that high-fat diets exacerbate IBD; however, there is a lack of information on how specific types of fat impact colitis. The Mediterranean diet (MD) is considered a health-promoting diet containing approximately 40% total fat. It is not known if the blend of fats found in the MD contributes to its beneficial protective effects. Mice deficient in the mucin 2 gene (Muc 2-/-) were weaned to 40% fat, isocaloric, isonitrogenous diets. We compared the MD fat blend (high monounsaturated, 2:1 n-6:n-3 polyunsaturated and moderate saturated fat) to diets composed of corn oil (CO, n-6 polyunsaturated-rich), olive oil (monounsaturated-rich) or milk fat (MF, saturated-rich) on spontaneous colitis development in Muc2-/- mice. The MD resulted in lower clinical and histopathological scores and induced tolerogenic CD103+ CD11b+ dendritic, Th22 and IL-17+ IL-22+ cells necessary for intestinal barrier repair. The MD was associated with beneficial microbes and associated with higher cecal acetic acid levels negatively correlated with colitogenic microbes like Akkermansia muciniphila. In contrast, CO showed a higher prevalence of mucin-degraders including A. muciniphila and Enterobacteriaceae, which have been associated with colitis. A dietary blend of fats mimicking the MD, reduces disease activity, inflammation-related biomarkers and improves metabolic parameters in the Muc2-/- mouse model. Our findings suggest that the MD fat blend could be incorporated into a maintenance diet for colitis.
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Affiliation(s)
- Natasha Haskey
- Department of Biology, University of British Columbia - Okanagan Campus; Kelowna, British Columbia, Canada
| | - Jiayu Ye
- Department of Biology, University of British Columbia - Okanagan Campus; Kelowna, British Columbia, Canada
| | - Mehrbod Estaki
- Department of Pediatrics, University of California, San Diego, La Jolla, California, USA
| | - Andrea A. Verdugo Meza
- Department of Biology, University of British Columbia - Okanagan Campus; Kelowna, British Columbia, Canada
| | - Jacqueline A. Barnett
- Department of Biology, University of British Columbia - Okanagan Campus; Kelowna, British Columbia, Canada
| | - Mitra Yousefi
- The Center for Phenogenomics Infection & McGill University Research Centre on Complex Traits; McGill University, Montreal, Quebec, Canada
| | - Blake W. Birnie
- Department of Medicine, University of British Columbia - Okanagan Campus, Kelowna, British Columbia, Canada
| | - Samantha Gruenheid
- Associate Professor - Department of Microbiology and Immunology, McGill University, Montreal, Quebec, Canada
| | - Sanjoy Ghosh
- Department of Biology, University of British Columbia - Okanagan Campus; Kelowna, British Columbia, Canada
| | - Deanna L. Gibson
- Department of Biology, University of British Columbia - Okanagan Campus; Kelowna, British Columbia, Canada,Department of Medicine, University of British Columbia - Okanagan Campus, Kelowna, British Columbia, Canada,CONTACT Deanna L. Gibson ASC 368, 3187University Way Kelowna, BCCanadaV1V 1V7250-807-8790; 250-807-8001
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Dos Santos G, Wang H, Jindal P, Rybo M, Roul H, Pallem S, Eckermann T, Godderis L, Martínez Gómez X, Godard E, Soler M, Yousefi M, Salamanca de la Cueva I, Nwoji U. Brand-Specific Enhanced Safety Surveillance Study of GSK's Quadrivalent Seasonal Influenza Vaccine, Conducted During the COVID-19 Pandemic, in Belgium, Germany and Spain, for the 2020/21 Season. Infect Dis Ther 2021; 11:463-483. [PMID: 34961900 PMCID: PMC8711683 DOI: 10.1007/s40121-021-00571-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 11/17/2021] [Indexed: 12/22/2022] Open
Abstract
INTRODUCTION Seasonal influenza poses a major public health burden worldwide. Influenza vaccines, updated yearly to match circulating strains based on World Health Organization (WHO) recommendations, are the cornerstone of prevention and require regular monitoring. The COVID-19 pandemic is expected to cause logistical, site access and medical staff constraints and could affect the safety profile of influenza vaccines. METHODS Following European Medicines Agency guidance, an enhanced safety surveillance (ESS) study assessed the frequency and severity of predefined and other adverse events (AEs) occurring within 7 days of receiving GSK's inactivated quadrivalent seasonal influenza vaccine (IIV4), in Belgium, Germany and Spain in 2020/21, using adverse drug reaction (ADR) cards. RESULTS During the 2020/21 influenza season, 1054 participants vaccinated with GSK's IIV4 were enrolled (all adults in Belgium and Germany, 30% adults/70% children in Spain); 96 eligible children received a second dose. Overall, 1042 participants completed the study. After doses 1 and 2, 98.9% and 100% of participants, respectively, returned their completed ADR card. After doses 1 and 2, 37.8% (398/1054) and 13.5% (13/96) of participants, respectively, reported at least one AE. The most frequently reported categories of AEs were "general disorders and administration site conditions" (e.g. injection site pain) and "nervous system disorders" (e.g. headache). There were no deaths or serious AEs deemed related to GSK's IIV4. CONCLUSION This ESS study assessed AEs in near real time. The COVID-19 pandemic did not alter the safety profile of GSK's IIV4. No safety signals were detected during the study, which confirms the excellent safety profile of GSK's IIV4.
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Affiliation(s)
| | | | - Pooja Jindal
- Parexel International, Chandigarh, India, C/O GSK, Rockville, MD, USA
| | | | - Hélène Roul
- Keyrus Life Science, Levallois-Perret, France, C/O GSK, Wavre, Belgium
| | - Sridevi Pallem
- Keyrus Life Science, New York, NY, USA, C/O GSK, New York, NY, USA
| | | | - Lode Godderis
- Environment and Health, Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium.,External Service for Prevention and Protection at Work, IDEWE, Heverlee, Belgium
| | | | | | - Muriel Soler
- 4Clinics, Waterloo, Belgium, C/O GSK, Wavre, Belgium
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12
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Yousefi M, Narchi M, Sharafi M, Borghei-Rad SM, Shahverdi A, Masoudi R. Rooster frozen-thawed semen quality following sublethal xanthine oxidase treatments. Anim Reprod Sci 2021; 235:106883. [PMID: 34768036 DOI: 10.1016/j.anireprosci.2021.106883] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 10/25/2021] [Accepted: 10/28/2021] [Indexed: 10/19/2022]
Abstract
Reactive oxygen species are associated with cryodamage and may be a factor causing or exacerbating cellular cryodamage during freezing and thawing processes. Induction of sublethal oxidative stress as a new approach for preconditioning of sperm improves the cryo-resistance of sperm. The aim of this study was to investigate effects of sublethal concentrations of xanthine oxidase (XO), which induces oxidative stress before cryopreservation on values for semen quality variables of rooster sperm post-thawing. Semen samples were collected from 15 roosters and treated with different concentrations of XO [XO-0, XO-0.005, XO-0.05, XO-0.5, XO-5, and XO-50 U/ml]; then, the effects of treatments with XO as sublethal stressors, were examined. Results indicated the XO-0.5 and XO-5 treatments resulted in a greater percentage of sperm total motility, progressive motility, viability, and membrane functionality compared to other groups. There was no difference after treatments with XO-0, XO-0.005, and XO-0.05 on sperm total motility, membrane functionality, apoptosis, mitochondria activity, and viability. There was a greater percentage of mitochondria activity in sperm of the XO-0.05, XO-0.5, and XO-5 groups. Furthermore, there was the greatest concentration of malondialdehyde (MDA) in samples of the XO-50 group. Values for sperm abnormal morphology, acrosome integrity, and DNA fragmentation were not different among samples post-thawing. Sperm treated with XO-0.5 and XO-5 had a greater fertilization capacity than those of the control group. In conclusion, treatment of sperm with 0.5 and 5 U/ml XO as inducers of mild oxidative stress before cryopreservation, improved several function quality indices of sperm post-thawing.
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Affiliation(s)
- M Yousefi
- Department of Poultry Science, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran
| | - M Narchi
- Faculty of Veterinay, Islamic Azad University, Karaj Branch, Karaj, Iran
| | - M Sharafi
- Department of Poultry Science, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran.
| | - S M Borghei-Rad
- Department of Embryology at Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - A Shahverdi
- Department of Embryology at Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - R Masoudi
- Animal Science Research Institute of Iran (ASRI), Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran.
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Shooshtary Veisi S, Yousefi M, Amini M, Shakeri A, Bagherzadeh M, Afghahi SS. Magnetic properties, structural studies and microwave absorption performance of Ba0.5Sr0.5CuxZrxFe12-2xO19/Poly Ortho-Toluidine (X = 0.2,0.4, 0.6, 0.8) ceramic nanocomposites. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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14
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Saeidian A, Youssefian L, Sotoudeh S, Goodarzi A, Mahmoudi H, Yousefi M, Zeinali S, Casanova J, Jouanguy E, Uitto J, Vahidnezhad H. 172 Inherited STK4/MST1 deficiency in two unrelated families with atypical epidermodysplasia verruciformis. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.192] [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: 10/21/2022]
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15
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Pourlak T, Pourlak T, Ghodrati M, Mortazavi A, Dolati S, Yousefi M. Usage of stem cells in oral and maxillofacial region. J Stomatol Oral Maxillofac Surg 2020; 122:441-452. [PMID: 33099018 DOI: 10.1016/j.jormas.2020.10.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 09/07/2020] [Accepted: 10/06/2020] [Indexed: 11/30/2022]
Abstract
Malformations of the maxillofacial region has disturbing psychosocial effects and causes enormous socioeconomic concerns. The management of maxillofacial defects caused by congenital anomalies, trauma, osteoporotic fractures, periodontitis, or cancer treatment is challenging for oral and maxillofacial surgeons. Numerous approaches have been recommended for the managing of these deficiencies. The traditional treatment for maxillofacial defects or their repair is an intricate process by autologous bone grafts from the scapula, ribs, fibula, or iliac crest origins. Regenerative medicine is well thought-out as a perfect substitute approach for autologous bone grafts to renovate bone deficiencies. The use of stem cells has improved results and offered a technique to reconstruct craniofacial bone defects. The field of tissue engineering for the regeneration of maxillofacial needs integration of biochemical and biomaterial engineering aspects with cell transplantation to generate better-quality biomimetic scaffolds, prevascularize three-dimensional (3D) tissue structures, and engineer the composite interface of diverse facial tissues. In this review, we have discussed the application of different adult stem cells to repair oral and maxillofacial defects in animal models and clinical trials.
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Affiliation(s)
- T Pourlak
- Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - T Pourlak
- Department of Pathology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - M Ghodrati
- Department of Endodontics, Dental and Periodental Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - A Mortazavi
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - S Dolati
- Physical Medicine and Rehabilitation Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - M Yousefi
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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16
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Yousefi M, Jonaidi H, Sadeghi B. Influence of peripheral lipopolysaccharide (LPS) on feed intake, body temperature and hypothalamic expression of neuropeptides involved in appetite regulation in broilers and layer chicks. Br Poult Sci 2020; 62:110-117. [PMID: 32820660 DOI: 10.1080/00071668.2020.1813254] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
1. This study examined the expression of genes related to appetite-regulating neuropeptides in the hypothalamus of broiler and layer chicks (Gallus gallus) after intraperitoneal (IP) injection of lipopolysaccharide (LPS). 2. Both broiler and layer chicks received (n = 10 per group) LPS at doses of 0 and 200 µg and feed intake was measured up to 6 h after injection. In a further experiment, (n = 8 per group) mRNA abundance of some hypothalamic neuropeptides was measured 2 h after injection. The rectal temperature of each chick was measured before and 2 h post-injection. 3. Feed intake was significantly decreased by LPS from 2 h after injection and thereafter, while the rectal temperature did not change. 4. LPS decreased the expression of appetite-enhancing neuropeptides: neuropeptide Y (NPY) and agouti-related peptide (AgRP) in broilers and, NPY in layer chicks. The expression of appetite-suppressing neuropeptides (corticotrophin-releasing factor (CRF), proopiomelanocortin (POMC) and, cocaine and amphetamine regulated-transcript (CART) was not changed in broilers, while CRF tended to decrease and POMC was significantly decreased in layers. The abundance of the cytokine tumour necrosis factor-alpha (TNF-α) did not change in broilers but was decreased in layers. 5. The findings indicated that the reduction in gene expression of hypothalamic appetite-enhancing neuropeptides NPY and AgRP is responsible for anorexia caused by LPS at a dose that did not influence body temperature.
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Affiliation(s)
- M Yousefi
- Division of Physiology, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman (SBUK) , Kerman, Iran
| | - H Jonaidi
- Division of Physiology, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman (SBUK) , Kerman, Iran
| | - B Sadeghi
- Division of Food Hygiene and Public Health, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman (SBUK) , Kerman, Iran
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17
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Yazdani A, Rezaeianpour S, Shahhosseini S, Yousefi M, Iranbakhsh A. Synthesis and evaluation of [2+1] Re(I)/Tc(I) complexes as isostructural optical and nuclear probes for imaging prostate cancer. Nucl Med Biol 2019. [DOI: 10.1016/s0969-8051(19)30264-1] [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: 10/26/2022]
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18
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Fallah N, Gholivand K, Yousefi M, Aberoomand azar P, Dusek M, Eigner V. Synthesis, X-ray Diffraction Studies, and Hydrogen Bonding Analysis of a New Phosphoramide Counterion in Solid State. RUSS J INORG CHEM+ 2019. [DOI: 10.1134/s0036023619050061] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Sarbazi E, Yousefi M, Khami B, Ettekal-Nafs R, Babazadeh T, Gaffari-fam S. Epidemiology and the survival rate of burn-related injuries in Iran: a registry-based study. Ann Burns Fire Disasters 2019; 32:3-9. [PMID: 31285727 PMCID: PMC6588330] [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: 12/14/2018] [Accepted: 02/16/2019] [Indexed: 06/09/2023]
Abstract
Burns are considered an important preventable fraction of injuries in low and middle-income countries, and are still a leading cause of death in Iran. This study investigates features of burns in Sina Hospital's Burn Centre in East Azerbaijan Province in order to calculate survival and mortality rates as well as factors affecting mortality in this centre. In this cross-sectional study, demographic characteristics of patients such as age, sex, cause of burns, type of burns, length of stay (LOS) in the hospital, total body surface area (TBSA), anatomic distribution of burn, mortality rate and final status of patients at the time of discharge from hospital (recovery, death) were investigated. The total mortality rate was 6.84%. Hot liquid burns and gas cylinder explosion burns were among the most common. Burns on multiple regions of the body (45.9%) and pelvic and lower limb burns (22%) constituted the next most common injury. In the TBSA index, compared to reference categories (extent of burn less than 50 percent), the categories of 50-59, 60-69, 70-79, 80-89 and over 90 percent indicated lowest survival based on the Log-Rank test. Hazard ratio for burns greater than 10% was 15.33 fold. Total body surface area burned of over 10% constantly increases the instantaneous risk of mortality therefore there is a need to enhance the quality of care provided to burn victims.
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Affiliation(s)
- E. Sarbazi
- Iranian Center of Excellence in Health Management, Tabriz University of Medical Sciences, Tabriz, Iran
| | - M. Yousefi
- Iranian Center of Excellence in Health Management, Tabriz University of Medical Sciences, Tabriz, Iran
| | - B. Khami
- Urmia University of Medical Sciences, Urmia, Iran
| | - R. Ettekal-Nafs
- Iranian Center of Excellence in Health Management, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - S. Gaffari-fam
- Iranian Center of Excellence in Health Management, Tabriz University of Medical Sciences, Tabriz, Iran
- Road Traffic Injury Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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20
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Yousefi M, Shariatifar N, Tajabadi Ebrahimi M, Mortazavian AM, Mohammadi A, Khorshidian N, Arab M, Hosseini H. In vitroremoval of polycyclic aromatic hydrocarbons by lactic acid bacteria. J Appl Microbiol 2019; 126:954-964. [DOI: 10.1111/jam.14163] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 11/07/2018] [Accepted: 11/19/2018] [Indexed: 01/20/2023]
Affiliation(s)
- M. Yousefi
- Food Science and Technology Department; National Nutrition and Food Technology Research Institute; Faculty of Nutrition & Food Technology; Shahid Beheshti University of Medical Sciences; Tehran Iran
- Food Safety Research Center (Salt); School of Nutrition and Food Sciences, Semnan University of Medical Sciences; Semnan Iran
| | - N. Shariatifar
- Department of Food Safety and Hygiene; School of Public Health, Tehran University of Medical Sciences; Tehran Iran
| | - M. Tajabadi Ebrahimi
- Department of Biology; Central Tehran Branch, Islamic Azad University; Tehran Iran
| | - A. M. Mortazavian
- Food Science and Technology Department; National Nutrition and Food Technology Research Institute; Faculty of Nutrition & Food Technology; Shahid Beheshti University of Medical Sciences; Tehran Iran
| | - A. Mohammadi
- Food Science and Technology Department; National Nutrition and Food Technology Research Institute; Faculty of Nutrition & Food Technology; Shahid Beheshti University of Medical Sciences; Tehran Iran
| | - N. Khorshidian
- Food Safety Research Center (Salt); School of Nutrition and Food Sciences, Semnan University of Medical Sciences; Semnan Iran
| | - M. Arab
- Food Science and Technology Department; National Nutrition and Food Technology Research Institute; Faculty of Nutrition & Food Technology; Shahid Beheshti University of Medical Sciences; Tehran Iran
| | - H. Hosseini
- Food Science and Technology Department; National Nutrition and Food Technology Research Institute; Faculty of Nutrition & Food Technology; Shahid Beheshti University of Medical Sciences; Tehran Iran
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21
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Ashoori A, Kafash A, Varasteh Moradi H, Yousefi M, Kamyab H, Behdarvand N, Mohammadi S. Habitat modeling of the common pheasant Phasianus colchicus (Galliformes: Phasianidae) in a highly modified landscape: application of species distribution models in the study of a poorly documented bird in Iran. The European Zoological Journal 2018. [DOI: 10.1080/24750263.2018.1510994] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- A. Ashoori
- Gilan Provincial Office of the Department of the Environment, Rasht, Iran
| | - A. Kafash
- Department of Environmental Sciences, Faculty of Natural Resources, University of Tehran, Karaj, Iran
- Department of Environmental Systems Science, ETH Zurich, Institute of Terrestrial Ecosystems, Zurich, Switzerland
| | - H. Varasteh Moradi
- Department of Environmental Sciences, College of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - M. Yousefi
- Department of Environmental Sciences, Faculty of Natural Resources, University of Tehran, Karaj, Iran
- Department of Evolutionary Biology and Environmental Studies, University of Zürich, Zürich, Switzerland
| | - H. Kamyab
- Department of Environmental Sciences, College of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - N. Behdarvand
- Department of Environmental Sciences, College of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - S. Mohammadi
- Department of Environmental Sciences, Faculty of Natural Resources, University of Zabol, Zabol, Iran
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22
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Yousefi M, Pepin D, Kang E, Zhu L, Willing B, Gruenheid S. A17 DIETARY MODULATION OF THE IMMUNE RESPONSE TO CITROBACTER RODENTIUM. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy009.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- M Yousefi
- Research Center on Complex Traits, Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada
| | - D Pepin
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - E Kang
- Research Center on Complex Traits, Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada
| | - L Zhu
- Research Center on Complex Traits, Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada
| | - B Willing
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - S Gruenheid
- Research Center on Complex Traits, Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada
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23
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Allameh F, Hasanzadeh Haddad A, Abedi A, Ranjbar A, Qashqai H, Fadavi B, Yousefi M. Varicocelectomy with primary gubernaculum veins closure: A randomised clinical trial. Andrologia 2018; 50:e12991. [PMID: 29460294 DOI: 10.1111/and.12991] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2018] [Indexed: 11/30/2022] Open
Abstract
To evaluate the effect of microsurgical inguinal varicocelectomy with testicular delivery on semen parameters. A total of 416 patients, diagnosed with grade III varicocele, were randomised into two groups. One group underwent microsurgical inguinal varicocelectomy without testicular delivery. For the other group, testicular delivery and ligation of gubernacular and all collateral veins were performed. A semen analysis was performed before and 6 months after the procedure. Mean age of the patients in the case and control groups was 27.3 ± 6.1 years and 25.9 ± 4.6 years respectively (p = .1). The total number of recurrence after 6 months in the conventional and testicular delivery groups was 13 (6.5%) and 3 (1.5%) (p < .05). No case of hydrocele formation was observed in any of the groups. All sperm parameters were improved 6 months after the surgery in both groups. But comparing the mean improved difference between the two groups revealed a significant difference in improvement in sperm motility for patients who had undergone varicocelectomy with testicular delivery (p = .05). Microsurgical inguinal varicocelectomy is a safe and efficient technique with a minimum chance of post-operative complications and recurrence and also may have role in improvement of sperm motility compared with conventional techniques.
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Affiliation(s)
- F Allameh
- Clinical Research Development Unit, Shohada-e-Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - A Hasanzadeh Haddad
- Urology Department, Shohada-e-Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - A Abedi
- Urology Department, Shohada-e-Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - A Ranjbar
- Urology Department, Shohada-e-Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - H Qashqai
- Urology Department, Shohada-e-Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - B Fadavi
- Urology Department, Shohada-e-Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - M Yousefi
- Urology Department, Shohada-e-Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Kang E, Zhou G, Yousefi M, Cayrol R, Xia J, Gruenheid S. Loss of disease tolerance during Citrobacter rodentium infection is associated with impaired epithelial differentiation and hyperactivation of T cell responses. Sci Rep 2018; 8:847. [PMID: 29339782 PMCID: PMC5770458 DOI: 10.1038/s41598-017-17386-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 06/30/2017] [Accepted: 11/24/2017] [Indexed: 02/07/2023] Open
Abstract
Citrobacter rodentium is an intestinal mouse pathogen widely used as a model to study the mucosal response to infection. Inbred mouse strains suffer one of two fates following infection: self-limiting colitis or fatal diarrheal disease. We previously reported that Rspo2 is a major genetic determinant of the outcome of C. rodentium infection; Rspo2 induction during infection of susceptible mice leads to loss of intestinal function and mortality. Rspo2 induction does not impact bacterial colonization, but rather, impedes the ability of the host to tolerate C. rodentium infection. Here, we performed deep RNA sequencing and systematically analyzed the global gene expression profiles of C. rodentium-infected colon tissues from susceptible and resistant congenic mice strains to determine the common responses to infection and the Rspo2-mediated dysfunction pathway signatures associated with loss of disease tolerance. Our results highlight changes in metabolism, tissue remodeling, and host defence as common responses to infection. Conversely, increased Wnt and stem cell signatures, loss of epithelial differentiation, and exaggerated CD4+ T cell activation through increased antigen processing and presentation were specifically associated with the response to infection in susceptible mice. These data provide insights into the molecular mechanisms underlying intestinal dysfunction and disease tolerance during C. rodentium infection.
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Affiliation(s)
- Eugene Kang
- Department of Microbiology and Immunology, McGill University, Montreal, Quebec, Canada
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
| | - Guangyan Zhou
- Institute of Parasitology, McGill University, Sainte Anne de Bellevue, Quebec, Canada
| | - Mitra Yousefi
- Department of Microbiology and Immunology, McGill University, Montreal, Quebec, Canada
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
| | - Romain Cayrol
- Department of Pathology and Cellular Biology, University of Montreal, Montreal, Quebec, Canada
| | - Jianguo Xia
- Department of Microbiology and Immunology, McGill University, Montreal, Quebec, Canada
- Institute of Parasitology, McGill University, Sainte Anne de Bellevue, Quebec, Canada
- Department of Animal Science, McGill University, Sainte Anne de Bellevue, Quebec, Canada
| | - Samantha Gruenheid
- Department of Microbiology and Immunology, McGill University, Montreal, Quebec, Canada.
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada.
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Yousefi M, Fallah F, Arshadi M, Pourmand MR, Hashemi A, Pourmand G. Identification of tigecycline- and vancomycin-resistant Staphylococcus aureus strains among patients with urinary tract infection in Iran. New Microbes New Infect 2017; 19:8-12. [PMID: 28663797 PMCID: PMC5479968 DOI: 10.1016/j.nmni.2017.05.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 05/09/2017] [Accepted: 05/18/2017] [Indexed: 12/01/2022] Open
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) is one of the major causes of hospital- and community-acquired infections worldwide. Although S. aureus rarely accounts for urinary tract infections (UTI), untreated UTI can lead to several complications. For decades vancomycin has been used for the treatment of MRSA infections. This study was performed to assess the in vitro activity of vancomycin, tigecycline, linezolid and quinupristin/dalfopristin against MRSA isolates from UTI patients. Thirty MRSA strains from 54 S. aureus isolates were isolated from patients with UTI. The antimicrobial susceptibility patterns of the strains were determined by the Kirby-Bauer disk diffusion and broth microdilution methods. PCR assays were used to detect the vanA gene. The MRSA isolates resistant to vancomycin were confirmed using the broth microdilution method. The results revealed that the MRSA isolates were 100% susceptible to linezolid and quinupristin/dalfopristin but 93.3% susceptible to vancomycin and tigecycline respectively. The broth microdilution method confirmed two MRSA strains (6.6%) to be resistant to vancomycin and tigecycline. The study identified vancomycin resistance among the MRSA isolates from UTI patients. This vancomycin resistance in MRSA isolates poses a challenge in managing S. aureus infections. Our study's results highlight the need to correctly identify patients in whom last-resort therapy such as linezolid and quinupristin/dalfopristin should be administered.
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Affiliation(s)
- M Yousefi
- Infectious Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - F Fallah
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - M Arshadi
- Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - M R Pourmand
- Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - A Hashemi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - G Pourmand
- Urology Research Center, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran
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26
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Fallah F, Yousefi M, Pourmand MR, Hashemi A, Nazari Alam A, Afshar D. Phenotypic and genotypic study of biofilm formation in Enterococci isolated from urinary tract infections. Microb Pathog 2017; 108:85-90. [PMID: 28483600 DOI: 10.1016/j.micpath.2017.05.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [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: 07/24/2016] [Revised: 02/27/2017] [Accepted: 05/04/2017] [Indexed: 11/16/2022]
Abstract
BACKGROUND Urinary tract infection (UTI) is one of the most frequent types of nosocomial and community acquired infections in humans. Management of multidrug-resistant Enterococci UTI due to the limited therapeutic options is a great challenge for physicians and clinical microbiologists. The role of bacterial biofilms in recurrent urinary tract infections and antimicrobial resistance has great importance for public health. The aim of this study was to investigate the antibiotic susceptibility pattern as well as the phenotypic and genotypic biofilm formation ability of Enterococci isolates from patients with UTI. METHODS A total of 57 isolates of Enterococci were collected from patients with UTI. Enterococcus species were identified using conventional microbiological methods. The antibiotic susceptibility patterns of the isolates were determined by the Kirby-Bauer disk-diffusion. The Modified Congo red agar (MCRA) and Microtiter plate methods used to assess the ability of biofilm formation. All enterococcal isolates were examined for determination of biofilm-related genes, esp, asa1 and ebpR using PCR method. RESULTS Of 57 enterococcal isolates, 85.9% were recognized as E. faecalis and 14.1% of them were E. faecium. According to our results, linezolid, chloramphenicol and nitrofurantoin were the most effective agents against Enterococcus species. Overall, 26.5% of E. faecalis and 75% of E. faecium isolates were biofilm producers, respectively. Resistance to some antibiotics including penicillin G, ampicillin, vancomycin, nitrofurantoin and chloramphenicol, and ciprofloxacin was significantly higher among biofilm producers than non-biofilm producers Enterococci. The esp, asa1 and ebpR genes were present in 84.2%, 91.2% and 100% isolates. In this study, there was not a significant relationship between presence of these genes and biofilm formation. CONCLUSION Our findings reinforce the role of biofilm formation in resistance to antimicrobial agents. Quinupristin/dalfopristin, tetracycline and rifampin may be used as an effective treatment for UTI caused by biofilm producers Enterococci. Our results suggest that biofilm formation is complex and depends on various factors but not just esp, asa1 and ebpR genes in Enterococcus strains.
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Affiliation(s)
- F Fallah
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - M Yousefi
- Department of Microbiology, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - M R Pourmand
- Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
| | - A Hashemi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - A Nazari Alam
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - D Afshar
- Department of Microbiology, Zanjan University of Medical Sciences, Zanjan, Iran
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27
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Yousefi M, Ferreira RPM. An agent-based simulation combined with group decision-making technique for improving the performance of an emergency department. ACTA ACUST UNITED AC 2017; 50:e5955. [PMID: 28380196 PMCID: PMC5423739 DOI: 10.1590/1414-431x20175955] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 01/30/2017] [Indexed: 11/22/2022]
Abstract
This study presents an agent-based simulation modeling in an emergency department. In a traditional approach, a supervisor (or a manager) allocates the resources (receptionist, nurses, doctors, etc.) to different sections based on personal experience or by using decision-support tools. In this study, each staff agent took part in the process of allocating resources based on their observation in their respective sections, which gave the system the advantage of utilizing all the available human resources during the workday by being allocated to a different section. In this simulation, unlike previous studies, all staff agents took part in the decision-making process to re-allocate the resources in the emergency department. The simulation modeled the behavior of patients, receptionists, triage nurses, emergency room nurses and doctors. Patients were able to decide whether to stay in the system or leave the department at any stage of treatment. In order to evaluate the performance of this approach, 6 different scenarios were introduced. In each scenario, various key performance indicators were investigated before and after applying the group decision-making. The outputs of each simulation were number of deaths, number of patients who leave the emergency department without being attended, length of stay, waiting time and total number of discharged patients from the emergency department. Applying the self-organizing approach in the simulation showed an average of 12.7 and 14.4% decrease in total waiting time and number of patients who left without being seen, respectively. The results showed an average increase of 11.5% in total number of discharged patients from emergency department.
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Affiliation(s)
- M Yousefi
- Departamento de Engenharia Mecânica, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - R P M Ferreira
- Departamento de Engenharia Mecânica, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
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29
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Seifi-Najmi M, Hajivalili M, Safaralizadeh R, Sadreddini S, Esmaeili S, Razavi R, Ahmadi M, Mikaeili H, Baradaran B, Shams-Asenjan K, Yousefi M. SiRNA/DOX lodeded chitosan based nanoparticles: Development, Characterization and in vitro evaluation on A549 lung cancer cell line. Cell Mol Biol (Noisy-le-grand) 2016; 62:87-94. [PMID: 27755958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 09/25/2016] [Indexed: 06/06/2023]
Abstract
High-mobility group AT-hook2 (HMGA2), involved in epithelial mesenchymal transition (EMT) process, has a pivotal role in lung cancer metastasis. Lung cancer therapy with HMGA2 suppressing small interfering RNA (siRNA) has been introduced recently while doxorubicin (DOX) has been used as a frequent cancer chemotherapy agent. Both reagents have been faced with obstacles in clinic which make them ineffective. NanoParticles (NPs) provided a platform for efficient co delivery of the anticancer drugs. The aim of this study was production and in vitro characterization of different pharmacological groups (siRNA, DOX or siRNA-DOX) of carboxymethyl dextran thrimethyl chitosan nanoparticles (CMDTMChiNPs) on cytotoxicity, gene expression, apoptosis and migration of metastatic lung cancer cell line (A-549). CMDTMChiNPs were synthesized and encapsulated with siRNA, DOX or siRNA-DOX. Then the effects of HMGA2 siRNA and DOX co delivery was assessed in A549 viability and target genes (HMGA2, Ecadherin, vimentin and MMP9) by MTT and real time PCR, respectively. In addition capability of apoptosis induction and anti-migratory features of formulated NPs were analyzed by flowcytometry and wound healing assays. SiRNA-DOX-CMDTM ChiNPs approximate size were 207±5 with poly dispersity index (PDI) and zeta potential of 0.4 and 16.3±0.3, respectively. NPs loaded with DOX and siRNA were the most efficient drug formulations in A549 cell cytotoxicity, altering of EMT markers, apoptosis induction and migration inhibition. Generally our results showed that co delivery of HMGA2 siRNA and DOX by novel designed CMDTMChiNPs is a new therapeutic approach with great potential efficiency for lung cancer treatment.
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Affiliation(s)
- M Seifi-Najmi
- Tuberculosis and Lung Disease Research Center of Tabriz University of Medical Sciences Tabriz Iran
| | - M Hajivalili
- Tabriz University of Medical Sciences Immunology research center Tabriz Iran
| | - R Safaralizadeh
- University of Tabriz Department of Animal Biology, Faculty of Natural Sciences Tabriz Iran
| | - S Sadreddini
- Tabriz University of Medical Sciences Immunology research center Tabriz Iran
| | - S Esmaeili
- Tarbiat Modares University Department of Hematology and Blood banking Tehran Iran
| | - R Razavi
- University of Tabriz Department of Animal Biology, Faculty of Natural Sciences Tabriz Iran
| | - M Ahmadi
- Tabriz University of Medical Sciences Immunology research center Tabriz Iran
| | - H Mikaeili
- Tuberculosis and Lung Disease Research Center of Tabriz University of Medical Sciences Tabriz Iran
| | - B Baradaran
- Tabriz University of Medical Sciences Immunology research center Tabriz Iran
| | - K Shams-Asenjan
- High Institute for Research and Education in Transfusion Medicine Blood Transfusion Research Center Tabriz Iran
| | - M Yousefi
- Tabriz University of Medical Sciences Immunology research center Tabriz Iran
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Laroche-Lefebvre C, Yousefi M, Daudelin JF, Charpentier T, Tarrab E, Klinck R, Lamarre A, Labrecque N, Stäger S, Duplay P. Dok-1 and Dok-2 Regulate the Formation of Memory CD8+ T Cells. J Immunol 2016; 197:3618-3627. [PMID: 27664281 DOI: 10.4049/jimmunol.1600385] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 09/06/2016] [Indexed: 11/19/2022]
Abstract
Diverse signals received by CD8+ T cells are integrated to achieve the required magnitude of cell expansion and the appropriate balance of effector/memory CD8+ T cell generation. Notably, the strength and nature of TCR signaling influence the differentiation and functional capacity of effector and memory CD8+ T cells. Dok-1 and Dok-2, the two members of the Dok family expressed in T cells, negatively regulate TCR signaling in vitro. However, the role of Dok proteins in modulating T cell function in vivo has not yet studied. We studied the function of Dok-1 and Dok-2 proteins in the regulation of the CD8+ T cell response to vaccinia virus infection. Comparison of responses to vaccinia virus expressing OVA peptide SIINFEKL by wild-type and Dok-1/2-/- CD8+ OT-I cells showed that the absence of Dok-1 and Dok-2 slightly reduced the magnitude of virus-specific effector CD8+ T cell expansion. This was not due to reduced proliferation or enhanced apoptosis of effector CD8+ T cells. Dok-1/2-deficient effector CD8+ T cells showed increased cell surface TCR expression following virus infection in vivo and increased expression of granzyme B and TNF upon stimulation with peptide Ag ex vivo. Finally, Dok-1/2-deficient effector CD8+ T had a severe defect in survival that resulted in impaired generation of memory CD8+ T cells. These results reveal the critical involvement of Dok-1 and Dok-2 in a negative-feedback loop that prevents overactivation of CD8+ T cells and promotes memory formation.
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Affiliation(s)
- Constance Laroche-Lefebvre
- Institut National de la Recherche Scientifique-Institut Armand-Frappier, Université du Québec, Laval, Quebec H7V 1B7, Canada
| | - Mitra Yousefi
- Institut National de la Recherche Scientifique-Institut Armand-Frappier, Université du Québec, Laval, Quebec H7V 1B7, Canada
| | - Jean-François Daudelin
- Maisonneuve-Rosemont Hospital Research Centre, University of Montreal, Montreal, Quebec H1T 2M4, Canada; and
| | - Tania Charpentier
- Institut National de la Recherche Scientifique-Institut Armand-Frappier, Université du Québec, Laval, Quebec H7V 1B7, Canada
| | - Esther Tarrab
- Institut National de la Recherche Scientifique-Institut Armand-Frappier, Université du Québec, Laval, Quebec H7V 1B7, Canada
| | - Roscoe Klinck
- Laboratoire de Génomique Fonctionnelle de l'Université de Sherbrooke, Sherbrooke, Quebec J1E 4K8, Canada
| | - Alain Lamarre
- Institut National de la Recherche Scientifique-Institut Armand-Frappier, Université du Québec, Laval, Quebec H7V 1B7, Canada
| | - Nathalie Labrecque
- Maisonneuve-Rosemont Hospital Research Centre, University of Montreal, Montreal, Quebec H1T 2M4, Canada; and
| | - Simona Stäger
- Institut National de la Recherche Scientifique-Institut Armand-Frappier, Université du Québec, Laval, Quebec H7V 1B7, Canada
| | - Pascale Duplay
- Institut National de la Recherche Scientifique-Institut Armand-Frappier, Université du Québec, Laval, Quebec H7V 1B7, Canada;
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Mohammadi A, Kaboli M, Ashrafi S, Mofidi‐Neyestanak M, Yousefi M, Rezaei A, Stuart Y. Trophic niche partitioning between two Rock Nuthatches (
Sitta tephronota
&
Sitta neumayer
) in a contact zone in Iran. J Zool (1987) 2016. [DOI: 10.1111/jzo.12329] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- A. Mohammadi
- Faculty of Natural Resources Department of Environmental Sciences University of Tehran Karaj Iran
| | - M. Kaboli
- Faculty of Natural Resources Department of Environmental Sciences University of Tehran Karaj Iran
| | - S. Ashrafi
- Faculty of Natural Resources Department of Environmental Sciences University of Tehran Karaj Iran
| | - M. Mofidi‐Neyestanak
- Insect Taxonomy Research Department Iranian Research Institute of Plant Protection Tehran Iran
| | - M. Yousefi
- Faculty of Natural Resources Department of Environmental Sciences University of Tehran Karaj Iran
| | - A. Rezaei
- Faculty of Natural Resources Department of Environmental Sciences University of Tehran Karaj Iran
| | - Y. Stuart
- Department of Integrative Biology University of Texas at Austin Texas USA
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Heidari G, Mousavi Khoie SM, Yousefi M, Ghasemifard M. Kinetic model of copper electrodeposition in sulfate solution containing trisodium citrate complexing agent. RUSS J ELECTROCHEM+ 2016. [DOI: 10.1134/s1023193516050050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Hajivalili M, Pourgholi F, Majidi J, Aghebati-Maleki L, Movassaghpour AA, Samadi Kafil H, Mirshafiey A, Yousefi M. G2013 modulates TLR4 signaling pathway in IRAK-1 and TARF-6 dependent and miR-146a independent manner. Cell Mol Biol (Noisy-le-grand) 2016; 62:1-5. [PMID: 27188726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 04/01/2016] [Indexed: 06/05/2023]
Abstract
Inflammation is inseparable part of different diseases especially cancer and autoimmunity. During inflammation process toll like receptor 4(TLR4) responds to lipopolysaccharide (LPS), one of the bacterial components, and TLR4 signaling leads to interleukine-1 receptor associated kinase-1 (IRAK1) and tumor necrosis factor (TNF) receptor associated factor6 (TRAF6) activation which ultimately results in nuclear factor- ĸB (NF-ĸB) activation as the main transcription factor of inflammatory cytokines. Conversely, NF-ĸB over activation induces miR-146a in innate immune cells which can consequently reduce TRAF6, IRAK1, and NF-ĸB activation in a negative feedback. G2013 is a novel designed non-steroidal anti-inflammatory drug (NSAID) which was recently shown to be effective in experimental autoimmune encephalomyelitis (EAE) mouse model. The aim of this study was to evaluate G2013 effects on inflammatory (IRAK1 and TRAF6) and anti-inflammatory (miR-146a) factors of TLR4 signaling pathway. For this purpose, cytotoxicity of G2013 has been evaluated by MTT assay. Expression level of miR-146a in PBMCs and IRAK1 along with TRAF6 in HEK-293 TLR4 cells have been determined using real time PCR. Our results showed that IC50 of G2013 was 25μg/ml, thus 5 and 25 μg/ml concentrations used for further treatments as low dose and high dose concentrations. Our results showed that IRAK1 expression reduced between 5 to 8 fold after treatment by G2013 in a dose dependent manner (p<0.001). In parallel TRAF6 expression declined between 3 to 10 fold dose dependently (p<0.05). However, miR-146a expression was not affected after treatment with low dose and high dose of G2013. In conclusion our data showed that G2013 can regulate TLR4 signaling pathway during inflammation by reducing downstream signaling molecules, IRAK1 and TRAF6 without altering miR-146a expression.
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Affiliation(s)
- M Hajivalili
- Tabriz University of Medical Sciences Hematology and Oncology Research Center Tabriz Iran
| | - F Pourgholi
- Tabriz University of Medical Sciences Hematology and Oncology Research Center Tabriz Iran
| | - J Majidi
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - L Aghebati-Maleki
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - A A Movassaghpour
- Tabriz University of Medical Sciences Hematology and Oncology Research Center Tabriz Iran
| | - H Samadi Kafil
- Tabriz University of Medical Sciences Department of Immunology, Faculty of Medicine Tabriz Iran
| | - A Mirshafiey
- Tehran University of Medical Sciences Department of Immunology, School of Public Health Tehran Iran
| | - M Yousefi
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
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Kang E, Yousefi M, Gruenheid S. R-Spondins Are Expressed by the Intestinal Stroma and are Differentially Regulated during Citrobacter rodentium- and DSS-Induced Colitis in Mice. PLoS One 2016; 11:e0152859. [PMID: 27046199 PMCID: PMC4821485 DOI: 10.1371/journal.pone.0152859] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [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: 02/14/2016] [Accepted: 03/21/2016] [Indexed: 11/18/2022] Open
Abstract
The R-spondin family of proteins has recently been described as secreted enhancers of β-catenin activation through the canonical Wnt signaling pathway. We previously reported that Rspo2 is a major determinant of susceptibility to Citrobacter rodentium-mediated colitis in mice and recent genome-wide association studies have revealed RSPO3 as a candidate Crohn's disease-specific inflammatory bowel disease susceptibility gene in humans. However, there is little information on the endogenous expression and cellular source of R-spondins in the colon at steady state and during intestinal inflammation. RNA sequencing and qRT-PCR were used to assess the expression of R-spondins at steady state and in two mouse models of colonic inflammation. The cellular source of R-spondins was assessed in specific colonic cell populations isolated by cell sorting. Data mining from publicly available datasets was used to assess the expression of R-spondins in the human colon. At steady state, colonic expression of R-spondins was found to be exclusive to non-epithelial CD45- lamina propria cells, and Rspo3/RSPO3 was the most highly expressed R-spondin in both mouse and human colon. R-spondin expression was found to be highly dynamic and differentially regulated during C. rodentium infection and dextran sodium sulfate (DSS) colitis, with notably high levels of Rspo3 expression during DSS colitis, and high levels of Rspo2 expression during C. rodentium infection, specifically in susceptible mice. Our data are consistent with the hypothesis that in the colon, R-spondins are expressed by subepithelial stromal cells, and that Rspo3/RSPO3 is the family member most implicated in colonic homeostasis. The differential regulation of the R-spondins in different models of intestinal inflammation indicate they respond to specific pathogenic and inflammatory signals that differ in the two models and provides further evidence that this family of proteins plays a key role in linking intestinal inflammation and homeostasis.
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Affiliation(s)
- Eugene Kang
- Department of Microbiology and Immunology and Complex Traits Group, McGill University, Montreal, Quebec, Canada
| | - Mitra Yousefi
- Department of Microbiology and Immunology and Complex Traits Group, McGill University, Montreal, Quebec, Canada
| | - Samantha Gruenheid
- Department of Microbiology and Immunology and Complex Traits Group, McGill University, Montreal, Quebec, Canada
- * E-mail:
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Torabi Goudarzi S, Hajivalili M, Hosseini M, Ghafari Khamene M, Yazdani Y, Sadreddini S, Miahipour A, Younesi V, Yousefi M. Tetanus neurotoxin HCC protein commits T cells to IFN-γ producing cells. Cell Mol Biol (Noisy-le-grand) 2016; 62:20-24. [PMID: 27064869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 03/15/2016] [Indexed: 06/05/2023]
Abstract
A protective response against tetanus toxin and toxoid demands efficient specific T cell and B cell responses. Tetanus neurotoxin (TeNT), a 150 kDa polypeptide, is the main cause of tetanus disease. TeNT consists of two structurally distinct chains, a 50 kDa N-terminal light (L) and a 100 kDa C-terminal heavy (H) chain. C-terminal heavy (H) chain (fragment C) has two sub-domains named as proximal HCN and carboxy sub-domain or HCC. Beside neural binding property, HCC has been recently found as an immunodominant module of TeNT. In the present study, we investigated the effects of recombinant HCC (rHCC) on the expression of lineage specific transcription factors and secretion of a panel of functional cytokines including IFN-γ, IL-4, and IL-17 from purified human T cells. Our results revealed that T-bet transcript level, as TH1 specific transcription factor, was significantly increased in the cells treated with 10 and 20 µg/ml of rHCC following 48 h treatment(p<0.05). Treated purified human T cells with rHCC showed significant increase in IFN-γ mRNA level and cytokine secretion, but not IL-4 and IL-17, following 48 h treatment. In conclusion, our results showed that treatment of T cells with r HCC resulted in development of Th1 lineage phenotype, which might lead to a specific and protective antibody mediated response against tetanus toxin.
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Affiliation(s)
- S Torabi Goudarzi
- Tabriz University of Medical Sciences Drug Applied Research Center Tabriz Iran
| | - M Hajivalili
- Tabriz University of Medical Sciences Drug Applied Research Center Tabriz Iran
| | - M Hosseini
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - M Ghafari Khamene
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - Y Yazdani
- Golestan University of Medical Sciences Infectious Diseases Research Center and Laboratory Science Research Center Gorgan Iran
| | - S Sadreddini
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - A Miahipour
- Alborz University of Medical Sciences Department of Medical Parasitology and Mycology, School of Medicine Karaj Iran
| | - V Younesi
- Avicenna research institute, ACESR Monoclonal antibody research center Tehran Iran
| | - M Yousefi
- Tabriz University of Medical Sciences Department of Immunology, Faculty of Medicine Tabriz Iran
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Habibi Z, Yousefi M, Kheyrabadi R, Mohammadi M, Moemeni M, Nazari S. Lipase-Catalysed Addition of Pyrrolidine to Chalcone and Benzylidene Malonate Derivatives. Chem Nat Compd 2015. [DOI: 10.1007/s10600-015-1434-1] [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: 10/23/2022]
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37
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Mashayekhi F, Yousefi M, Salehi Z, Saedi HS, Pournourali M. The association of ApE1 -656T>G and 1349T>G polymorphisms with breast cancer susceptibility in northern Iran. Cell Mol Biol (Noisy-le-grand) 2015; 61:70-74. [PMID: 26314200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Accepted: 08/25/2015] [Indexed: 06/04/2023]
Abstract
Breast cancer is the most common cancer and one of the main causes of cancer-related death in the world and has become a major public health concern. Many genes have been shown to be involved in the progress of the breast cancer. Human apurinic/apyrimidinic endonuclease 1 (APE1) is a multifunctional protein that has an important role in the base excision repair (BER) pathway. The aim of this study was to evaluate the association between ApE1 -656T>G and 1349T>G polymorphisms and the susceptibility to breast cancer in northern Iran population. Samples were obtained from 150 patients diagnosed with breast cancer and 150 control subjects and genotyped by tetra - primer amplification refractory mutation system PCR (T-ARMS-PCR). We observed a significant difference in genotype distributions of -656T>G polymorphism between patients and controls (P= 0.03). Findings indicated that individuals with the variant TG genotypes had a significant decreased risk of breast cancer (OR= 0.55, 95% CI= 0.33 - 0.91, P= 0.019). However, the significant association between 1349T>G polymorphism and breast cancer risk was not observed (P = 0.89). Larger studies are needed to confirm our results.
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Affiliation(s)
- F Mashayekhi
- University of Guilan Department of Biology, Faculty of Sciences Rasht Iran mashayekhi@guilan.ac.ir
| | - M Yousefi
- University of Guilan Department of Biology, Faculty of Sciences Rasht Iran
| | - Z Salehi
- University of Guilan Department of Biology, Faculty of Sciences Rasht Iran
| | - H S Saedi
- Guilan University of Medical Sciences Department of Radiotherapy, Faculty of Medicine Rasht Iran
| | - M Pournourali
- University of Guilan Department of Biology, Faculty of Sciences Rasht Iran
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38
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Pournourali M, Tarang AR, Yousefi M. The association between 1349T>G polymorphism of ApE1 gene and the risk of prostate cancer in northern Iran. Cell Mol Biol (Noisy-le-grand) 2015; 61:21-24. [PMID: 26255264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Accepted: 07/20/2015] [Indexed: 06/04/2023]
Abstract
Prostate cancer (PCa) is the most common malignancy in men and the fourth most common cause of death based on cancer all over the world. Many genes has been shown to be involved in the progress of the prostate cancer. Human apurinic/apyrimidinic endonuclease 1 (APE1) is a multifunctional protein that has an important role in the base excision repair (BER) pathway. The aim of this study was to evaluate the association of ApE1 1349T>G polymorphism and the susceptibility to prostate cancer in northern Iran population. Samples were collected from 100 patients diagnosed with prostate cancer patients and 100 controls subjects and genotyped by PCR-RFLP (Polymerase Chain Reaction-Restriction Fragment Length Polymorphism). We observed a significant difference in genotype distributions of ApE1 1349T>G polymorphism between patients and controls (P= 0.039). Our findings revealed individuals with the variant TG and GG had a significant increased risk of prostate cancer (GG: OR= 2.50, 95%CI= 1.063-5.874, P= 0.035. TG: OR= 2.40, 95%CI= 1.16-4.95, P= 0.017). Also, more analyses were showed that G allele were associated with increased risk of prostate cancer (OR= 1.493, 95%CI= 1.007-2.21, P= 0.045). The data from this study indicates that the ApE1 1349T>G polymorphism is associated with increased risk of prostate cancer. Although more studies should be considered with larger number of patients and control subjects to confirm our results.
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Affiliation(s)
- M Pournourali
- Faculty of Sciences, University of Guilan Department of Biology Rasht Iran mostafapournourali@yahoo.com
| | - A R Tarang
- Agriculture Biotechnology Research Institute of Iran (ABRII) Department of Genomics and Animal, Branches of north region of Iran Rasht Iran
| | - M Yousefi
- Faculty of Sciences, University of Guilan Department of Biology Rasht Iran
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Montazami N, Kheir Andish M, Majidi J, Yousefi M, Yousefi B, Mohamadnejad L, Shanebandi D, Estiar MA, Khaze V, Mansoori B, Baghbani E, Baradaran B. siRNA-mediated silencing of MDR1 reverses the resistance to oxaliplatin in SW480/OxR colon cancer cells. Cell Mol Biol (Noisy-le-grand) 2015; 61:98-103. [PMID: 26025411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 05/18/2015] [Indexed: 06/04/2023]
Abstract
One of the most challenging aspects of colon cancer therapy is rapid acquisition of multidrug resistant phenotype. The multidrug resistance gene 1 (MDR1) product, p—glycoprotein (P—gp), pump out a variety of anticancer agents from the cell, giving rise to a general drug resistance against chemotherapeutic agents. The aim of this study was to investigate the effect of a specific MDR1 small interference RNA (siRNA) on sensitivity of oxaliplatin—resistant SW480 human colon cancer cell line (SW480/OxR) to the chemotherapeutic drug oxaliplatin. SW480 cells were made resistant by continuous incubation with stepwise serially increased concentrations of oxaliplatin over a 6—months period. Resistance cell were subsequently transfected with specific MDR1 siRNA. Relative MDR1 mRNA expression was measured by Quantitative real—time PCR. Western blot analysis was performed to determine the protein levels of P—gp. The cytotoxic effects of oxaliplatin and MDR1 siRNA, alone and in combination were assessed using MTT and the number of apoptotic cells was determined with the TUNEL assay. MDR1 siRNA effectively reduced MDR1 expression in both mRNA and protein levels. MDR1 down—regulation synergistically increased the cytotoxic effects of oxaliplatin and spontaneous apoptosis SW480/OxR. Our data demonstrates that RNA interference could down regulate MDR1 gene expression and reduce the P—gp level, and partially reverse the drug resistance in SW480/OxR cells in vitro. Therefore, the results could suggest that MDR1 silencing may be a potent adjuvant in human colon chemotherapy.
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Affiliation(s)
- N Montazami
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - M Kheir Andish
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine Department of Immunology Tehran Iran
| | - J Majidi
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - M Yousefi
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - B Yousefi
- Tabriz University of Medical Sciences Student Research Committee Tabriz Iran
| | - L Mohamadnejad
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - D Shanebandi
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - M A Estiar
- School of Medicine, Tehran University of Medical Sciences Department of Medical Genetics Tehran Iran
| | - V Khaze
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - B Mansoori
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - E Baghbani
- Faculty of Medicine, Semnan University of Medical Sciences Department of Immunology Semnan Iran
| | - B Baradaran
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran behzad_im@yahoo.com
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Mashayekhi F, Behrouzi S, Yousefi M, Salehi Z. The association of PON1 192 Q/R polymorphism and the risk of female infertility. Cell Mol Biol (Noisy-le-grand) 2015; 61:74-77. [PMID: 26025407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 05/18/2015] [Indexed: 06/04/2023]
Abstract
Infertility is a disease of the reproductive system defined by the failure to achieve a clinical pregnancy after 12 months of regular unprotected sexual intercourse. Both environmental and genetic factors are involved in female infertility. Paraoxonase (PON) is an oxidant enzyme which plays an important role in various diseases and is associated with inflammation, oxidative stress and lipid metabolism. The present study was aimed to evaluate the PON1 192 Q/R gene polymorphism in female infertility. Samples were obtained from 150 patients diagnosed with female infertility and 150 controls subjects and genotyped by Polymerase Chain Reaction—Restriction Fragment Length Polymorphism (PCR—RFLP). The PON genotype frequencies amongst the 70 cases were C/C=40%, C/T=52.8% and T/T=7.2%; the C and T allele frequencies were 66% and 34%, respectively. The PON genotype frequencies amongst the 73 controls were C/C=45.20%, C/T=50.70% and T/T=4.1%; the C and T allele frequencies were 70% and 30%, respectively. We observed a significant difference in the genotype distributions of PON1 192 Q/R polymorphism between patients and controls (P= 0.03). Our findings revealed that individuals with the variant QR had a significant decrease risk of female infertility (OR= 0.55, 95% CI= 0.33 - 0.91, P= 0.019). The data from this study indicates that the PON1 192 Q/R polymorphism may be associated with decreased risk of female infertility. Although more studies should be considered with larger number of patients and control subjects to confirm our results.
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Affiliation(s)
- F Mashayekhi
- Faculty of Sciences, University of Guilan Department of Biology Rasht Iran mashayekhi@guilan.ac.ir
| | - S Behrouzi
- Faculty of Sciences, University of Guilan Department of Biology Rasht Iran
| | - M Yousefi
- Faculty of Sciences, University of Guilan Department of Biology Rasht Iran
| | - Z Salehi
- Faculty of Sciences, University of Guilan Department of Biology Rasht Iran
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Yousefi M, Rippon L, Forbes M, Gopaluni R, Loewen P, Dumont G, Backstrom J. Moving-Horizon Predictive Input Design for Closed-Loop Identification. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.ifacol.2015.08.170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Fazaeli S, Yousefi M, Banikazemi SH, Ghazizadeh Hashemi SAH, Khorsand A, Badiee S. Importance of customer adjustment regions in the non-clinical property of thought: A home examination in low and high-income areas of Mashhad. J Med Life 2015; 8:107-112. [PMID: 28316675 PMCID: PMC5348963] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Responsiveness was proposed via WHO as a fundamental sign to evaluate the enforcement of wellness practices and evaluates with a standard organization of fields that are classified to 2 principal classes "Respect as characters" and "customer adjustment". The current research included the value of customer adjustment areas in low and high-income communities of Mashhad. In the current descriptive research, an example of 923 families was chosen stochastically of 2 low and high pay areas of Mashhad. WHO survey employed for information gathering. Regular rate reviews and Ordinal Logistic Regression (OLR) applied for information investigation. In overall, respondents chose basic amenities quality as the primary area, and the path to social care networks recognized as the wicked primary area. Families in high-income states obtained higher areas of immediate notations and selection associated with low-income. There is a meaningful correlation among parameters of ages, having a part whom required care and self-imposed health via the ranking of customer adjustment areas. The investigation of the homes' viewpoint concerning the classification of non-clinical perspectives of care quality, particularly while confronted by restricted sources, can assist in managing enterprises towards topics that are more relevant and results in the development of the wellness policy achievement and fecundity.
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Affiliation(s)
- S Fazaeli
- Department of Medical Records and Health Information Technology,
School of Paramedical Sciences, Mashhad, University of Medical Sciences, Mashhad, Iran,
| | - M Yousefi
- Department of Health Economics and Management Sciences, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran, ,Health Strategic Research Center, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran,
| | - SH Banikazemi
- Health Strategic Research Center, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran,
| | - SAH Ghazizadeh Hashemi
- Health Strategic Research Center, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran,
| | - A Khorsand
- Department of Complementary and Chines Medicine, School of Persian and Complementary Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sh Badiee
- Department of Complementary and Chines Medicine, School of Persian and Complementary Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Yazdani A, Normandie M, Yousefi M, Saidi M, Ahmadi G. Transport and deposition of pharmaceutical particles in three commercial spacer–MDI combinations. Comput Biol Med 2014; 54:145-55. [DOI: 10.1016/j.compbiomed.2014.08.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Revised: 07/24/2014] [Accepted: 08/01/2014] [Indexed: 11/26/2022]
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Yousefi M, Safari M, Torbati MB, Amanzadeh A. In vitro anti-proliferative activity of novel hexacoordinated triphenyltin(IV) trifluoroacetate containing a bidentate N-donor ligand. J STRUCT CHEM+ 2014. [DOI: 10.1134/s0022476614010168] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Burch J, Karmaus W, Gangur V, Soto-Ramírez N, Yousefi M, Goetzl LM. Pre- and perinatal characteristics and breast milk immune markers. Pediatr Res 2013; 74:615-21. [PMID: 23999066 DOI: 10.1038/pr.2013.141] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [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: 11/26/2012] [Accepted: 04/08/2013] [Indexed: 11/09/2022]
Abstract
BACKGROUND Maternal allergy and gestational exposures can alter the concentration of type-1/type-2/T-regulatory markers in breast milk. We tested whether maternal risk factors are related to breast milk immune markers. METHODS Expecting mothers were enrolled in 2008-2010 in South Carolina in prenatal clinics and classes. Interferon (IFN)-γ-induced protein 10 (CXCL10), CCL11, interleukin (IL)-1β, IL-4, IL-5, IL-6, CXCL8, IL-10, IL-12(p70), IL-13, transforming growth factor (TGF)-β1, and immunoglobulin (Ig)A in 115 whey samples were measured by immunoassays. Maternal asthma, eczema, rhinitis, smoking, urogenital infections during gestation, pet exposure, education, race/ethnicity, age, body mass, and the child's birth date and sex were ascertained. The effects of these risk factors on immune markers were estimated using general linear models. RESULTS Maternal asthma was linked to higher levels of IL-5, rhinitis to lower levels of IL-5 and INF-γ, and eczema to lower levels of IL-6. Gestational smoking was related to increased concentrations of CXCL8 and IL-6. African-American mothers had markedly higher levels of IL-6, IFN-γ, and CXCL8. Urogenital infections, maternal age, body mass, child's sex, and season of birth contributed to the variation. CONCLUSION The impact of maternal allergies on immune markers in breast milk was small compared with that of maternal nondisease characteristics.
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Affiliation(s)
- Jessica Burch
- Department of Epidemiology and Biostatistics, University of South Carolina, Columbia, South Carolina
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Yousefi M, Duplay P. CD28 controls the development of innate-like CD8+ T cells by promoting the functional maturation of NKT cells. Eur J Immunol 2013; 43:3017-27. [PMID: 23896981 DOI: 10.1002/eji.201343627] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Revised: 06/20/2013] [Accepted: 07/24/2013] [Indexed: 11/08/2022]
Abstract
NK T cells(NKT cells) share functional characteristics and homing properties that are distinct from conventional T cells. In this study, we investigated the contribution of CD28 in the functional development of γδ NKT and αβ NKT cells in mice. We show that CD28 promotes the thymic maturation of promyelocytic leukemia zinc finger(+) IL-4(+) NKT cells and upregulation of LFA-1 expression on NKT cells. We demonstrate that the developmental defect of γδ NKT cells in CD28-deficient mice is cell autonomous. Moreover, we show in both wild-type C57BL/6 mice and in downstream of tyrosine kinase-1 transgenic mice, a mouse model with increased numbers of γδ NKT cells, that CD28-mediated regulation of thymic IL-4(+) NKT cells promotes the differentiation of eomesodermin(+) CD44(high) innate-like CD8(+) T cells. These findings reveal a previously unappreciated mechanism by which CD28 controls NKT-cell homeostasis and the size of the innate-like CD8(+) T-cell pool.
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Affiliation(s)
- Mitra Yousefi
- Institut National de la Recherche Scientifique-Institut Armand-Frappier, Université du Québec, Laval, Canada
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Yousefi M, Karmaus W, Zhang H, Roberts G, Matthews S, Clayton B, Arshad SH. Relationships between age of puberty onset and height at age 18 years in girls and boys. World J Pediatr 2013; 9:230-8. [PMID: 23335183 DOI: 10.1007/s12519-013-0399-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [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: 09/21/2011] [Accepted: 04/23/2012] [Indexed: 11/29/2022]
Abstract
BACKGROUND Changes during puberty may influence final adult height. Height is related to multiple health conditions, including lung function. We investigated the association between the age of onset of five puberty events and height at age 18 years, analyzing boys and girls separately. METHODS Of 1456 children recruited into the Isle of Wight birth cohort (1989-1990), 1313 were followed up at age 18 years. Height was measured, and age of pubertal onset was collected at age 18 years. Cluster analysis was performed on the five puberty events in boys and girls and linear regression was applied with the clusters predicting height at age 18 years. Individual linear regression analyses assessed the age of onset of each pubertal event as a potential predictor for height at age 18 years. RESULTS Of the 1313 children followed up at age 18 years, 653 were males and 660 were females. All puberty variables had high internal consistency. In girls, earlier age of menarche, breast development, and growth spurt were related to shorter height. In boys, earlier age of growth spurt and slower progression through puberty were related to taller height at age 18 years. CONCLUSIONS Given that boys and girls may have opposing associations between pubertal timing and adult height and that height is an important predictor of lung function, the effect of pubertal timing on respiratory health should be explored.
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Yousefi M, Karmaus W, Zhang H, Ewart S, Arshad H, Holloway JW. The methylation of the LEPR/LEPROT genotype at the promoter and body regions influence concentrations of leptin in girls and BMI at age 18 years if their mother smoked during pregnancy. Int J Mol Epidemiol Genet 2013; 4:86-100. [PMID: 23875062 PMCID: PMC3709113] [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] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Accepted: 06/15/2013] [Indexed: 06/02/2023]
Abstract
To determine whether DNA methylation (DNA-M) of the leptin receptor genotype (LEPR/LEPROT) links gestational smoking and leptin serum levels and BMI later in life, we focused on female offspring, 18 years of age, from the Isle of Wight Birth Cohort (IOWBC). Leptin binds to the leptin receptor encoded by the LEPR/LEPROT genotype. Using general linear models, we tested a two-stage model. First, we investigated whether single nucleotide polymorphisms (SNPs) acting as methylation quantitative trait loci (methQTLs) depending on gestational smoking were related to differentially methylated cytosine-phosphate-guanine (CpG) sites. In stage 2, we tested whether the selected CpG sites, in interaction with other SNPs (modifiable genetic variants, modGV), are associated with serum leptin and BMI (stage 2). Children from the IOWBC were followed from birth to age 18. Information on gestational smoking was gathered upon delivery. SNPs tagging LEPR and LEPROT genes were genotyped. Data on LEPR/LEPROTDNA-M and leptin were obtained from blood samples drawn at age 18; to determine BMI, height and weight were ascertained. Blood samples were provided by 238 girls. Of the 21 CpG sites, interactions between gestational smoking and SNPs were detected for 16 CpGs. Methylation of seven of the 16 CpGs were, in interaction with modGVs, associated with leptin levels at age 18 years. Two CpGs survived a multiple testing penalty and were also associated with BMI. This two-stage model may explain why maternal smoking has a long-term effect on leptin levels and BMI in girls at age 18 years.
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Affiliation(s)
- Mitra Yousefi
- Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South CarolinaColumbia, SC, USA
| | - Wilfried Karmaus
- Division of Epidemiology, Biostatistics, and Environmental Health, School of Public Health, University of MemphisMemphis, USA
| | - Hongmei Zhang
- Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South CarolinaColumbia, SC, USA
| | - Susan Ewart
- College of Veterinary Medicine, Michigan State UniversityEast Lansing, MI, 48824, USA
| | - Hasan Arshad
- The David Hide Asthma and Allergy Research Centre, St Mary’s HospitalNewport, Isle of Wight, UK
- Clinical & Experimental Sciences, and Human Development & Health, Faculty of Medicine, University of SouthamptonSouthampton, UK
| | - John W Holloway
- Clinical & Experimental Sciences, and Human Development & Health, Faculty of Medicine, University of SouthamptonSouthampton, UK
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Raeis AR, Bahrami S, Yousefi M. Relationship between information literacy and creativity: a study of students at the isfahan university of medical sciences. Mater Sociomed 2013; 25:28-31. [PMID: 23687459 PMCID: PMC3655735 DOI: 10.5455/msm.2013.25.28-31] [Citation(s) in RCA: 4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Accepted: 02/25/2013] [Indexed: 11/03/2022] Open
Abstract
INTRODUCTION In an era of huge volume of publications and information products, information literacy has become a very important survival tool. Information literacy is an instrument for individual empowerment that leads one to search for the truth and the desired information for decision making with independence. While creativity is the foundation of sciences and innovation, one of the main functions of universities is expanding the frontiers of knowledge and productions of scientific information. Therefore creativity is more vital and necessary for these kinds of institutions than other organizations. In this regard, this paper investigates the relationship between information literacy and creativity of students at the Isfahan University of Medical Sciences. METHOD This is a correlation-descriptive study. Statistical population was third year students of Isfahan University of Medical Sciences (1054 individuals) in 2011. Sample size was 250 individuals selected by stratified random Sampling. The instruments for data collection were two questionnaires, an investigator made questionnaire for information literacy and a creativity questionnaire. For questionnaires validity used content validity and for their reliability used Cronbach Alpha Coefficient (r1= 0.95, r2=0.85). SPSS 18 statistical software and descriptive and inferential statistics tests (Frequency distribution tab, Pearson Correlation, T test, Tukey test and ANOVA) were used to analyze data. RESULTS The results indicate that mean of information literacy was higher than average and mean of creativity was lower than average. There is a significant multiple correlation between 5 dimensions of information literacy (Ability to determine extent and nature of information, effective and efficient access, critical assessment, ability of purposeful application, ability of understanding legal and economic issues) and creativity in level of (p≤ 0.05). Also mean difference of ability of purposeful application based on gender was significant in level of (p≤ 0.05). It means the ability of purposeful application in male students was more than female students. CONCLUSION We are living in the information age and one of the variables that are associated with creativity is information literacy. The results indicated that the students who are more creative are more information literate and can reach higher goals. Therefore we can contemplate that increasing information literacy in the universities and other scientific education centers plays an important role in teaching and training a creative workforce.
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Affiliation(s)
- Ahmad Reza Raeis
- Health Management and Economic Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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Yousefi M, Kamel Attar Kar M, Kamel Attar Kar M. Ni-doped MgFe2O4 nanoferrite as a novel catalyst for selective oxidation of benzyl alcohol to benzaldehyde. Main Group Chemistry 2013. [DOI: 10.3233/mgc-130102] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- M. Yousefi
- Department of Chemistry, Faculty of Basic Sciences, Inorganic Chemistry-Nanochemistry, Shahr-e-Rey branch, Islamic Azad University, Tehran, Iran
| | | | - M. Kamel Attar Kar
- Department of Chemistry, Faculty of Basic Sciences, Inorganic Chemistry-Nanochemistry, Shahr-e-Rey branch, Islamic Azad University, Tehran, Iran
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