1
|
Shahbazi S, Moezzi ghadim N, Mirzaei AR, Azizi A. Comparison of Soft Tissue Thermal Changes Induced by Three Types of Diode Lasers at 810, 940, and 980nm Wavelengths. J Res Dentomaxillofac Sci 2020. [DOI: 10.29252/jrdms.5.2.7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
|
2
|
Abstract
Coagulation factor VII (FVII) is a key enzyme of the extrinsic coagulation cascade that is predominantly produced by hepatocytes. The F7 gene mutations cause FVII deficiency with considerable molecular and phenotypic heterogeneity. We characterized the molecular alterations of the F7 gene and their corresponding mRNA transcripts in Iranian patients from eight unrelated families. The mutations were detected by polymerase chain reaction (PCR)-sequencing of all F7 gene exons, their flanking intronic sequences, as well as their corresponding cDNA fragments. Homozygous P303T, C91S and R304Q mutations were detected in patient 2, patient 5, and patient 6, respectively. Patient 7 was a compound heterozygote for S282R and H348R and patient 8 was a compound heterozygote for R304Q and IVS7+7A>G mutations. Furthermore, our investigation revealed three heterozygous individuals, patient 1 and patient 3 with the A244V mutation who were symptomatic and patient 4 with V(-39)I mutation who was also asymptomatic. The F7 mRNA expression analysis revealed that, except the transcript of V(-39)I, other mutation-harboring transcripts were expressed at detectable levels. In conclusion, this report reinforces the genetic and phenotypic heterogeneity of FVII deficiency. The findings of the mRNA study implied that decreased FVII protein activity subsequent to missense mutations does not completely reflect the degradation of mutation-harboring mRNA.
Collapse
Affiliation(s)
- S Shahbazi
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University Tehran, Tehran, Iran
- Dr. Shirin Shahbazi, Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Al-e-Ahmad and Chamran Cross, POB 14115-111Tehran, Iran. Tel: +98-21-82-884-556. Fax: +98-21-82-884-555.
| | - R Mahdian
- Molecular Medicine Department, Pasteur Institute of Iran, Tehran, Iran
| | - K Karimi
- Clinic of Hematology and Oncology, School of Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - A Mashayekhi
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University Tehran, Tehran, Iran
| |
Collapse
|
3
|
Sadeghi SA, Aghasadeghi MR, Amiran MR, Bahramali G, Rahimi P, Owlia P, Ghanei M, Moravej SZ, Shahbazi S, Divbandi M, Motevalli F, Hamidi-Fard M. Cloning and expression of hepatitis E virus ORF2 as a vaccine candidate. vacres 2017. [DOI: 10.29252/vacres.4.3.4.81] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
|
4
|
Hekmat S, Siadat SD, Aghasadeghi MR, Sadat SM, Bahramali G, Aslani MM, Mahdavi M, Shahbazi S. From in-silico immunogenicity verification to in vitro expression of recombinant Core-NS3 fusion protein of HCV. ACTA ACUST UNITED AC 2017; 118:189-195. [PMID: 28471227 DOI: 10.4149/bll_2017_038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND AND OBJECTIVE Hepatitis C virus (HCV) is a serious global health burden. There is no effective vaccine against HCV and new direct acting antivirals (DAAs) are so expensive and virtually unavailable to the public. Therefore, seeking for therapeutic or prophylactic vaccines is exigent and reliever. METHODS The secondary and tertiary structures of the recombinant Core-NS3 (rC-N) fusion protein of HCV and its B and T-cells epitopes were evaluated with bioinformatics software. Cloning and in vitro expression of rC-N were performed by pET24a(+) and E.coli BL21-DE3 expression host, respectively. The recombinant protein purification was done by affinity chromatography method and then identified by Western blotting using anti-His monoclonal antibody. RESULTS The sequences of rC-N protein consist of 1-118 amino acid parts of Core and 1095-1384 amino acids of NS3 were connected by a flexible linker (AAY) with proteasome cleavable site. The expressed and purified 46.7292 kDa rC-N protein had antigenic value up to threshold and conservancy found in this chimeric protein. Ramchandran Plot analysis represented that most residues were fallen in favourable regions. It also interacted with both type I and II major histocompatibility complex (MHC I, II) molecules. The rC-N had antigenic behaviour to create T cell responses. CONCLUSION The results indicated that conserved rC-N protein had the ability to induce T-cell-mediated immune responses and it could be utilized as a therapeutic vaccine candidate against HCV (Tab. 3, Fig. 4, Ref. 40).
Collapse
|
5
|
Masteri-Farahani M, Shahbazi S. Facile synthesis of rod-like nanostructured histidine-phosphomolybdate hybrid material with microemulsion method. INORG NANO-MET CHEM 2017. [DOI: 10.1080/15533174.2016.1186089] [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] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | - S. Shahbazi
- Faculty of Chemistry, Kharazmi University, Tehran, Iran
| |
Collapse
|
6
|
Ahmadi A, Shahbazi S, Diyanat M. Analysis of nicosulfuron residues in maize field soil by high-performance liquid chromatography. Quality Assurance and Safety of Crops & Foods 2017. [DOI: 10.3920/qas2015.0741] [Citation(s) in RCA: 3] [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: 11/19/2022]
Affiliation(s)
- A.R. Ahmadi
- Department of Plant Protection, Agricultural and Natural Resources Campus, Lorestan University of Khorramabad, P.O. Box 465, Khorramabad, Iran
| | - S. Shahbazi
- Weed Science, Faculty of Agriculture, University of Tehran, Karaj, Iran
| | - M. Diyanat
- Islamic Azad University, Science and Research Branch, Hesarak, 1477893855 Tehran, Iran
| |
Collapse
|
7
|
Hekmat S, Aslani MM, Shafiee Ardestani M, Aghasadeghi MR, Siadat SD, Sadat SM, Mahdavi M, Shahbazi S, Asgarhalvaee F, Ghahari SMM, Tohidi F. Preparation and characterization of PLGA Nanoparticles containing recombinant core-NS3 Fusion protein of hepatitis C virus as a nano-vaccine candidate. vacres 2016. [DOI: 10.29252/vacres.3.8.9.48] [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: 10/31/2022] Open
|
8
|
Shahbazi S, Tajabadi F, Shiu HS, Sedighi R, Jokar E, Gholipour S, Taghavinia N, Afshar S, Diau EWG. An easy method to modify PEDOT:PSS/perovskite interfaces for solar cells with efficiency exceeding 15%. RSC Adv 2016. [DOI: 10.1039/c6ra11936k] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Surface treatment of PEDOT:PSS films using propionic acid (PA) leads to better device performance for the resulting CH3NH3PbI3 perovskite solar cells (PCE > 15%).
Collapse
Affiliation(s)
- S. Shahbazi
- Department of Chemistry
- Iranian University of Science and Technology
- Tehran 16846-13114
- Iran
| | - F. Tajabadi
- Department of Nanotechnology and Advanced Materials
- Materials and Energy Research Center
- Karaj 3177983634
- Iran
| | - H.-S. Shiu
- Department of Applied Chemistry and Institute of Molecular Science
- National Chiao Tung University
- Hsinchu 30010
- Taiwan
| | - R. Sedighi
- Faculty of Physics and Chemistry
- Alzahra University
- Tehran
- Iran
| | - E. Jokar
- Department of Applied Chemistry and Institute of Molecular Science
- National Chiao Tung University
- Hsinchu 30010
- Taiwan
| | - S. Gholipour
- Institute for Nanoscience and Nanotechnology and Physics Department
- Sharif University of Technology
- Tehran 14588-89694
- Iran
| | - N. Taghavinia
- Faculty of Physics and Chemistry
- Alzahra University
- Tehran
- Iran
- Institute for Nanoscience and Nanotechnology and Physics Department
| | - S. Afshar
- Department of Chemistry
- Iranian University of Science and Technology
- Tehran 16846-13114
- Iran
| | - E. W.-G. Diau
- Department of Applied Chemistry and Institute of Molecular Science
- National Chiao Tung University
- Hsinchu 30010
- Taiwan
| |
Collapse
|
9
|
Meftahi A, Nasrolahi D, Babaeipour V, Alibakhshi S, Shahbazi S. Investigation of Nano Bacterial Cellulose Coated by Sesamum Oil for Wound Dressing Application. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.mspro.2015.11.109] [Citation(s) in RCA: 11] [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: 11/30/2022]
|
10
|
Masteri-Farahani M, Shahbazi S. Preparation of Keggin-type polyoxometalate hybrid nanomaterial with one pot multicomponent reaction in reverse micelle nanoreactors. INORG CHEM COMMUN 2012. [DOI: 10.1016/j.inoche.2011.11.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
|
11
|
Mirzaei K, Hossein-Nezhad A, Chamari M, Shahbazi S. Evidence of a role of ANGPTL6 in resting metabolic rate and its potential application in treatment of obesity. MINERVA ENDOCRINOL 2011; 36:13-21. [PMID: 21460784] [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] [Indexed: 05/30/2023]
Abstract
AIM ANGPTL6 (Angiopoietin-related growth factor 6) is a circulating protein which is suggested to antagonize obesity. The purpose of this study was to evaluate a potential relationship between fasting serum ANGPTL6 and resting metabolic rate (RMR) as well as the body composition in obese and subjects with normal weight. METHODS Participants were 62 obese and 41 non-obese subjects who were assessed following an overnight fasting for RMR by means of indirect calorimetry. Body composition was measured using Bodystat devise. Serum ANGPTL6 levels were quantified by ELISA method. RESULTS Based on ROC analysis best RMR/kg cut-off value for predicting the risk of obesity was 20 kcal/24h /kg. The participants with RMR/kg≥20 kcal/24h/kg were considered as and subjects with RMR/kg<20 kcal/24h/kg were categorized as. In group I, 72.3% of subjects were obese, whereas, 47.4% subjects in group II were suffering from the disease. Participants in group II who showed significantly lower HDL and ANGPTL6 levels. Moreover, we found significantly higher triglyceride and hs-CRP levels in this group. There was significant difference in weight, body mass index, fat mass, visceral fat, RMR/kg, fasting serum glucose, insulin and hs-CRP among those with different levels of the serum ANGPTL6 concentration. We found higher values of RMR/kg in subjects with higher circulating ANGPTL6 concentration. CONCLUSION ANGPTL6 affects RMR and significantly improves lipid profile and slightly does so regarding insulin concentrations and sensitivity to it. Further study is warranted as it seems that the results of this study might potentially lead to advent of a pharmacological treatment for obesity.
Collapse
Affiliation(s)
- K Mirzaei
- Endocrinology and Metabolism Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | | | | |
Collapse
|
12
|
Davari HR, Malek-Hosseini SA, Salahi H, Bahador A, Nikeghbalian S, Nemati MH, Sanjarian MA, Khosravi MB, Shahbazi S, Saberfiruzi M, Dehghani SM, Kazemi K. Liver transplantation and aortic valve replacement. Int J Organ Transplant Med 2011; 2:32-6. [PMID: 25013592 PMCID: PMC4089243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Surgical procedures involving heart and liver are rare and have been limited to either combined heart and liver transplantation or coronary artery bypass graft surgery (CABG) or aortic valve surgery and orthotopic liver transplantation (OLT). Aortic valve replacement (AVR) and pulmonary valve vegetectomy for bacterial endocarditis after OLT have also been reported. There are only five cases with aortic stenosis and cirrhosis reported to have combined AVR and liver transplantation. In the presence of cirrhosis, AVR has a significant risk for mortality because of bleeding from coagulopathy, renal failure, infection, and poor post-operative wound healing. Herein, we report on a case and management analysis of combined sequential AVR, and OLT in a 40-year-old cirrhotic man with Child and MELD score of C and 29, respectively. Echocardiography detected severe aortic insufficiency (AI) with enlarged left ventricle. Due to severe AI, the cardiologist recommended AVR prior to transplantation. The patient underwent metallic AVR. 4 months later, he received OLT. Both operations were successful and uneventful. Prioritizing AVR before OLT was successful in this patient. However, each patient must be evaluated individually and multiple factors should be assessed in pre-operation evaluation.
Collapse
|
13
|
Shahbazi M, Ebadi H, Fathi D, Roshandel D, Mohamadhosseni M, Tahmasebi A, Shahbazi S, Zamani M, Rashidbaghan A. HLA-DRB1*1501 intensifies the impact of IL-6 promoter polymorphism on the susceptibility to multiple sclerosis in an Iranian population. Mult Scler 2010; 16:1173-7. [DOI: 10.1177/1352458510376177] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background: The multifunctional cytokine interleukin-6 (IL-6) is involved in inflammatory processes in the central nervous system. It is well documented that amount of IL-6 is increased in serum, cerebrospinal fluid and central nervous system lesions of patients with multiple sclerosis. A single nucleotide polymorphism at position -174 in the IL-6 gene promotor appears to influence IL-6 expression. Recently, several researchers have focused on HLA-DRB alleles, specifically HLA-DRB1*1501, as a potential risk allele in the pathogenesis of multiple sclerosis. Objective: To investigate the possible influence of IL-6/-174 polymorphisms on susceptibility to multiple sclerosis and its integration with HLA-DRB1*1501. Genomic DNA was extracted from whole blood of 345 patients with multiple sclerosis and 426 control subjects. Method: The SSP-PCR method was used to determine genotypes and Fisher’s exact test was applied to determine differences between groups. HLA-DRB1*1501 was observed more frequently among multiple sclerosis patients compared with healthy subjects (45% and 34%, respectively; OR = 1.6, 95% CI = 1.2—2.2, p = 0.0018). At the IL-6/-174 position, the G allele had higher frequency among multiple sclerosis patients compared with controls (77% and 70%, respectively; OR = 1.4, 95% CI = 1.1—1.8, p = 0.0038). This difference was more significant among HLA-DRB1*1501-positive patients and controls (81% and 67%, respectively; OR = 1.9, 95% CI = 1.5—2.5, p < 0.0001). Results: Our results have shown that the G allele at the IL-6/-174 promoter polymorphism may be associated with development of multiple sclerosis in this population, and may be strengthened by HLA-DRB1*1501. Conclusions: We suggest more studies to confirm these results in other populations.
Collapse
Affiliation(s)
- M. Shahbazi
- Medical Cellular and Molecular Research Center, Molecular Medicine and Genetics, Golestan University of Medical Sciences, Gorgan, Iran,
| | - H. Ebadi
- Medical Cellular and Molecular Research Center, Neurology, Golestan University of Medical Sciences, Gorgan, Iran
| | - D. Fathi
- Medical Cellular and Molecular Research Center, Neurology, Golestan University of Medical Sciences, Gorgan, Iran
| | - D. Roshandel
- Medical Cellular and Molecular Research Center, Genetics and Immunology, Golestan University of Medical Sciences, Gorgan, Iran
| | - M. Mohamadhosseni
- Medical Cellular and Molecular Research Center, Genetics and Immunology, Golestan University of Medical Sciences, Gorgan, Iran
| | - A. Tahmasebi
- Medical Cellular and Molecular Research Center, Genetics and Immunology, Golestan University of Medical Sciences, Gorgan, Iran
| | - S. Shahbazi
- Medical Cellular and Molecular Research Center, Genetics and Immunology, Golestan University of Medical Sciences, Gorgan, Iran
| | - M. Zamani
- Neurogenetics Division, Neurological Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - A. Rashidbaghan
- Medical Cellular and Molecular Research Center, Genetics and Immunology, Golestan University of Medical Sciences, Gorgan, Iran
| |
Collapse
|
14
|
Shahbazi S, Mahdian R, Ala FA, Lavergne JM, Denis CV, Christophe OD. Molecular characterization of Iranian patients with type 3 von Willebrand disease. Haemophilia 2009; 15:1058-64. [PMID: 19500169 DOI: 10.1111/j.1365-2516.2009.02046.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
von Willebrand's disease (VWD) type 3 is a rare but severe autosomal-recessive inherited bleeding disorder with a prevalence higher in certain locations where consanguineous marriages are relatively frequent. The genetic defects causing recessive type 3 VWD in 10 unrelated families from Iran have been investigated and the genetic heterogeneity among these patients was evaluated. All exons and their flanking regions of von Willebrand factor gene were amplified by PCR and sequenced using specific primers. Eight patients were fully characterized at the molecular level. Six different gene alterations were identified. All the mutations caused null alleles, three being nonsense mutations (Q104X, Q793X and E1981X), two possible splice site mutations (2443-1G>C and 1110-1G>A) and one small deletion (3237delA). Three of them have not been described previously. Most patients were born from consanguineous marriages and all were homozygous for their mutations. The results confirm that molecular defects in type 3 VWD are heterogeneous with mutations arising randomly within the entire gene.
Collapse
Affiliation(s)
- S Shahbazi
- INSERM U770, Faculté de Médecine Paris-Sud, Université Paris-Sud, IFR93, Le Kremlin-Bicêtre, France
| | | | | | | | | | | |
Collapse
|
15
|
Shahbazi S, Lenting PJ, Fribourg C, Terraube V, Denis CV, Christophe OD. Characterization of the interaction between von Willebrand factor and osteoprotegerin. J Thromb Haemost 2007; 5:1956-62. [PMID: 17723135 DOI: 10.1111/j.1538-7836.2007.02681.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVE Osteoprotegerin (OPG), a member of the tumor necrosis-factor receptor superfamily, plays an important role in bone remodeling and is also involved in vascular diseases. OPG is physically associated with von Willebrand factor (VWF), a glycoprotein involved in primary hemostasis, within the Weibel-Palade bodies (WPBs) of endothelial cells and in plasma. The present study aimed to elucidate the molecular mechanisms underlying the interaction between OPG and VWF. METHODS AND RESULTS In a solid-phase binding assay, VWF was able to bind specifically to OPG in a calcium-dependent manner. This interaction displayed strong pH dependence with optimal binding occurring at pH 6.5 and was severely impaired by chloride-ion concentrations above 40 mm. Using a series of purified VWF derivatives the functional site that supports VWF interaction with OPG was localized on its Al domain. Fluorescence microscopy on human umbilical vein endothelial cells showed co-localization of VWF and OPG in WPBs. When secretion was induced, OPG remained associated with VWF in extracellular patches of release under biochemical conditions found in blood plasma. CONCLUSIONS Our observations demonstrate the existence of an interactive site for OPG within the VWF A1-domain. This study established that the optimal biochemical parameters allowing a complex formation between VWF and OPG are those thought to prevail in the trans-Golgi network. These conditions would allow VWF to act as a cargo targeting OPG to WPBs. Finally, blood environments appear suitable to preserve the complex, which may participate in vascular injury, arterial calcification and inflammation.
Collapse
Affiliation(s)
- S Shahbazi
- INSERM U770, Le Kremlin-Bicêtre, F-94276, and Univ Paris-Sud, Le Kremlin-Bicêtre, France
| | | | | | | | | | | |
Collapse
|