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Simard L, Côté N, Pibarot P, Dagenais F, Mathieu P, Couture C, Trahan S, Bossé Y, Mohammadi S, Pagé S, Joubert P, Clavel M. SEX-RELATED HISTOLOGICAL DISCREPANCIES IN AORTIC STENOSIS: CONTRIBUTION OF VALVULAR FIBROSIS TO THE PATHOPHYSIOLOGY OF THE DISEASE. Can J Cardiol 2016. [DOI: 10.1016/j.cjca.2016.07.422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Mohammadi S, Abbasi S, Scanlon M. Development of emulsifying property in Persian gum using octenyl succinic anhydride (OSA). Int J Biol Macromol 2016; 89:396-405. [DOI: 10.1016/j.ijbiomac.2016.04.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 03/31/2016] [Accepted: 04/03/2016] [Indexed: 10/21/2022]
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Ghoreishi S, Hedayati A, Mohammadi S. Optimization of periodic static-dynamic supercritical CO 2 extraction of taxifolin from pinus nigra bark with ethanol as entrainer. J Supercrit Fluids 2016. [DOI: 10.1016/j.supflu.2016.03.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Ghiasi R, Mohammadi M, Ashrafi Helan J, Jafari Jozani SR, Mohammadi S, Ghiasi A, Naderi R. Influence of Two Various Durations of Resistance Exercise on Oxidative Stress in the Male Rat's Hearts. J Cardiovasc Thorac Res 2015; 7:149-53. [PMID: 26702343 PMCID: PMC4685280 DOI: 10.15171/jcvtr.2015.32] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 08/13/2015] [Indexed: 12/19/2022] Open
Abstract
INTRODUCTION The previous studies have suggested that alteration in oxidative stress and antioxidant defense depends on various factors, such as mode, intensity, frequency and duration of exercise. In this study, we compared the effects of two various durations of resistance exercise (1 month and 4 month) on oxidative stress and antioxidant status in cardiac tissue. METHODS Thirty Wistar male rats divided into 3 groups: control (sedentary), exercise-1 (regular exercise for 1 month) and exercise-2 group (regular exercise for 4 months). After the final to the experiment, the rats were anesthetized, and then blood and heart samples were obtained and used to determine glutathione peroxidase (GPX), superoxide dismutase (SOD), malondialdehyde (MDA) and biochemical estimation. RESULTS MDA levels between control and exercise-2 groups showed no significant difference, hence, MDA level in exercise-1 group was higher compared to control group (P < .01). The heart GPX activity increased significantly in exercise-2 group regarding other groups (P < .01). The SOD activities of groups were similar. Creatine kinase (CK) and lactate dehydrogenase (LDH) concentrations increased in the exercise-1 compared to the other groups (P < .01). CONCLUSION Our results indicate that in heart, the adaptation and alteration in oxidative stress and cell injury level depend on duration of exercise.
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Simard L, Dagenais F, Pibarot P, Mathieu P, Mahmut A, Couture C, Mohammadi S, Trahan S, Pagé S, Joubert P, Clavel M. IMPACT OF SEX ON AORTIC VALVE CALCIFICATION AND FIBROSIS IN AORTIC STENOSIS. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.643] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Gagné-Loranger M, Dumont E, Voisine P, Mohammadi S, Dagenais F. NATURAL HISTORY OF 40-50MM ROOT/ASCENDING AORTIC ANEURYSMS IN THE CURRENT ERA OF DEDICATED THORACIC AORTIC CLINICS. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Mohammadi S, Marzouk M, Voisine P, Dumont E, Charbonneau E, Baillot R, Dagenais F, Kalavrouziotis D. DOES THE USE OF A FREE INTERNAL MAMMARY ARTERY GRAFT TO BYPASS THE LEFT ANTERIOR DESCENDING ARTERY COMPROMISE LONG-TERM SURVIVAL? AN 18-YEAR FOLLOW-UP USING PROPENSITY SCORES. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Mohammadi S, Dumont E, Rodes-Cabau J, Voisine P, Doyle D, Charbonneau E, Dagenais F, Kalavrouziotis D. RESULTS OF SURGICAL AORTIC VALVE REPLACEMENT IN OCTOGENARIANS TURNED DOWN FOR TRANS-CATHETER AORTIC VALVE REPLACEMENT BY THE MULTIDISCIPLINARY HEART TEAM. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Gagné-Loranger M, Lacombe L, Voisine P, Mohammadi S, Dagenais F. HYPERNEPHROMA EXTENDING IN THE RETROHEPATIC VENA CAVA SUS-HEPATIC VEINS OR RIGHT ATRIUM: SURGICAL TECHNIQUES AND OUTCOMES IN 41 PATIENTS. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Le Roux E, Dumont E, Kalavrouziotis D, Doyle D, Paradis J, De Larochelliere R, Rodes-Cabau J, Mohammadi S. MID-TERM RESULTS OF TRANS-CATHETER AORTIC VALVE-IN-VALVE IMPLANTATION IN DEGENERATED AORTIC STENTLESS BIOPROSTHESES. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Gagné-Loranger M, Dumont E, p Voisine, Mohammadi S, Dagenais F. OUTCOMES OF TEVAR FOR ACUTE TRAUMATIC RUPTURE; RATIONAL AND IMPLICATIONS IN DEVELOPING SPECIFIC IMAGING GUIDELINES FOR FOLLOW-UP. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Badalzadeh R, Mohammadi M, Yousefi B, Farajnia S, Najafi M, Mohammadi S. Involvement of Glycogen Synthase Kinase-3β and Oxidation Status in the Loss of Cardioprotection by Postconditioning in Chronic Diabetic Male Rats. Adv Pharm Bull 2015; 5:321-7. [PMID: 26504753 DOI: 10.15171/apb.2015.045] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2014] [Revised: 11/11/2014] [Accepted: 11/13/2014] [Indexed: 01/17/2023] Open
Abstract
PURPOSE Diabetes mellitus as a main risk-factor of ischemic heart disease may interfere with postconditioning'scardioprotective effects. This study aimed to investigate the involvement of glycogen synthase kinase-3β (GSK-3β) and oxidation status in chronic diabetes-induced loss of cardioprotective effect of ischemic-postconditioning (IPostC) in Wistar rats. METHODS After 8 weeks of induction of diabetes by streptozotocin (50mg/kg), hearts of control and diabetic rats were isolated and mounted on a constant-pressure Langendorff system. All hearts were subjected to 30min regional ischemia followed by 60min reperfusion (by occluding and re-opening of left anterior descending coronary artery, respectively). IPostC was applied immediately at the onset of reperfusion. At the end of reperfusion, the infarct size of myocardium was measured via computerized planimetry. Myocardial contents of malondealdehyde and glutathione as indices of oxidative status were assayed spectrophotometrically and the total and phosphorylated forms of myocardial GSK-3β were quantified through western blotting. RESULTS IPostC reduced the infarct size of control hearts from 41±2.9% to 28±1.9% (P<0.05), whereas it could not induce significant changes in infarct size of diabetic animals (35±1.8% vs. 39±3.1%). IPostC-induced reduction in malondealdehyde and elevation in glutathione contents were significant only in control not in diabetic hearts. The total forms of GSK-3β were similar in all groups; however, the phosphorylation of GSK-3β (at Ser9) by IPostC was greater in control hearts than diabetics (P<0.01). CONCLUSION The failure of cardioprotection by IPostC in diabetic hearts may be attributed to the loss of phosphorylation of GSK-3β and thereby increase in oxidative stress in diabetic states.
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Ghanbari MR, Ghoranneviss M, Salar Elahi A, Mohammadi S, Arvin R. Controlling the Diffusion of Runaway Electrons by Safety Factor Changes in IR-T1 Tokamak. JOURNAL OF FUSION ENERGY 2015. [DOI: 10.1007/s10894-015-9992-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Pacilè S, Brun F, Dullin C, Nesterest YI, Dreossi D, Mohammadi S, Tonutti M, Stacul F, Lockie D, Zanconati F, Accardo A, Tromba G, Gureyev TE. Clinical application of low-dose phase contrast breast CT: methods for the optimization of the reconstruction workflow. BIOMEDICAL OPTICS EXPRESS 2015; 6:3099-3112. [PMID: 26309770 PMCID: PMC4541534 DOI: 10.1364/boe.6.003099] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 07/03/2015] [Accepted: 07/06/2015] [Indexed: 05/29/2023]
Abstract
Results are presented of a feasibility study of three-dimensional X-ray tomographic mammography utilising in-line phase contrast. Experiments were performed at SYRMEP beamline of Elettra synchrotron. A specially designed plastic phantom and a mastectomy sample containing a malignant lesion were used to study the reconstructed image quality as a function of different image processing operations. Detailed evaluation and optimization of image reconstruction workflows have been carried out using combinations of several advanced computed tomography algorithms with different pre-processing and post-processing steps. Special attention was paid to the effect of phase retrieval on the diagnostic value of the reconstructed images. A number of objective image quality indices have been applied for quantitative evaluation of the results, and these were compared with subjective assessments of the same images by three experienced radiologists and one pathologist. The outcomes of this study provide practical guidelines for the optimization of image processing workflows in synchrotron-based phase-contrast mammo-tomography.
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Manescu A, Giuliani A, Mohammadi S, Tromba G, Mazzoni S, Diomede F, Zini N, Piattelli A, Trubiani O. Osteogenic potential of dualblocks cultured with human periodontal ligament stem cells: in vitro and synchrotron microtomography study. J Periodontal Res 2015; 51:112-24. [PMID: 26094874 DOI: 10.1111/jre.12289] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/15/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND OBJECTIVE In the present study, the early stages of in vitro bone formation in collagenated porcine scaffolds cultured with human periodontal ligament cells were investigated. The comparison between the osteogenic potential of this structure in basal and differentiating culture media was explored to predict the mechanism of its biological behavior as graft in human defect. Results were validated by synchrotron radiation X-Ray phase contrast computed microtomography (micro-CT). As the periodontal disease plays a key role in systemic and oral diseases, it is crucial to find advanced therapeutic clinical interventions to repair periodontal defects. This has been recently explored using cells and tissues developed in vitro that should ideally be immunologically, functionally, structurally and mechanically identical to the native tissue. MATERIAL AND METHODS In vitro cultures of human periodontal ligament cells, easily obtained by scraping of alveolar crestal and horizontal fibers of the periodontal ligament, were seeded on to collagenated porcine blocks constituted by natural cancellous and cortical bone. 3D images were obtained by synchrotron radiation micro-CT and processed with a phase-retrieval algorithm based on the transport of intensity equation. RESULTS Starting from the second week of culture, newly formed mineralized bone was detected in all the scaffolds, both in basal and differentiating media. Bone mineralization was proved to occur preferentially in the trabecular portion and in differentiating media. CONCLUSION The chosen method, supported by phase contrast micro-CT analysis, successfully and quantitatively monitored the early stages of bone formation and the rate of the bioscaffold resorption in basal and differentiating culture media.
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Didehdar M, Gokanian A, Sofian M, Mohammadi S, Mohammadi R, Aslani N, Haghani I, Badali H. First fatal cerebral phaeohyphomycosis due to Rhinocladiella mackenziei in Iran, based on ITS rDNA. J Mycol Med 2015; 25:81-6. [PMID: 25637429 DOI: 10.1016/j.mycmed.2014.11.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2014] [Revised: 11/05/2014] [Accepted: 11/19/2014] [Indexed: 11/30/2022]
Abstract
Black yeast-like fungi and relatives as agents of cerebral phaeohyphomycosis are often encountered in human fatal brain abscesses and lead to almost 100% mortality despite the application of antifungal and surgical therapy. We report to our knowledge the first case of brain infection due to Rhinocladiella mackenziei in a 54-year-old immunocompetent male in Iran where R. mackenziei has not been reported previously. The initial diagnosis was brain fungal infection because of pigmented, irregular, branched, septated hyphae based on histopathological staining. The patient was treated with intravenous amphotericin B deoxycholate (0.5mg/kg/day) combined with oral itraconazole (200mg twice daily), nevertheless, his neurological function deteriorated rapidly and ultimately the patient died due to respiratory failure later two weeks. R. mackenziei was identified based on the sequencing of internal transcribed spacer (ITS rDNA region) (KJ140287). Therefore, considerable attention for this life-threatening infection is highly recommended.
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Ebrahimzadeh A, Saryazdipoor K, Gharaei A, Mohammadi S, Jamshidi A. Prevalence of enterobius vermicularis infection among preschool children of Khash city kindergartens, Iran in 2012. ACTA ACUST UNITED AC 2014. [DOI: 10.29252/jnkums.6.3.477] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Scott V, Mohammadi S, Tzias D, Wale A, Heller S. PB.37. Does conventional imaging accurately predict the extent of disease in women with dense breasts? If so, does this have a significant impact on patient surgical outcome? Breast Cancer Res 2014. [PMCID: PMC4243389 DOI: 10.1186/bcr3721] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Dery J, Dagenais F, Mohammadi S, Kalavrouziotis D, Garcia-Labbé D, Jacques F, Baillot R, Doyle D, Perron J, Mathieu P, Charbonneau E, Dumont E, Metras J, Voisine P. RISK OF BLEEDING COMPLICATIONS IN PATIENTS TREATED WITH TICAGRELOR UNDERGOING URGENT CORONARY ARTERY BYPASS GRAFTING SURGERY: A SINGLE CENTER EXPERIENCE. Can J Cardiol 2014. [DOI: 10.1016/j.cjca.2014.07.595] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Dagenais F, Mohammadi S, Dumont E, Kalavrouziotis D, Voisine P. EARLY AND LATE OUTCOMES OF PATIENTS OPERATED UNDER CARDIOPULMONARY BYPASS ACCORDING TO THE PREOPERATIVE RENAL FUNCTION LEVEL: Results OF A LARGE INSTITUTIONAL STUDY. Can J Cardiol 2014. [DOI: 10.1016/j.cjca.2014.07.407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Becker SMA, Tabelow K, Mohammadi S, Weiskopf N, Polzehl J. Adaptive smoothing of multi-shell diffusion weighted magnetic resonance data by msPOAS. Neuroimage 2014; 95:90-105. [PMID: 24680711 PMCID: PMC4073655 DOI: 10.1016/j.neuroimage.2014.03.053] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Revised: 01/06/2014] [Accepted: 03/18/2014] [Indexed: 11/08/2022] Open
Abstract
We present a novel multi-shell position-orientation adaptive smoothing (msPOAS) method for diffusion weighted magnetic resonance data. Smoothing in voxel and diffusion gradient space is embedded in an iterative adaptive multiscale approach. The adaptive character avoids blurring of the inherent structures and preserves discontinuities. The simultaneous treatment of all q-shells improves the stability compared to single-shell approaches such as the original POAS method. The msPOAS implementation simplifies and speeds up calculations, compared to POAS, facilitating its practical application. Simulations and heuristics support the face validity of the technique and its rigorousness. The characteristics of msPOAS were evaluated on single and multi-shell diffusion data of the human brain. Significant reduction in noise while preserving the fine structure was demonstrated for diffusion weighted images, standard DTI analysis and advanced diffusion models such as NODDI. MsPOAS effectively improves the poor signal-to-noise ratio in highly diffusion weighted multi-shell diffusion data, which is required by recent advanced diffusion micro-structure models. We demonstrate the superiority of the new method compared to other advanced denoising methods. Method for structure preserving smoothing multi-shell dMRI data Does not rely on any dMRI diffusion model Outperforms naive single-shell POAS and other approaches Feasible for real data application Implemented within a freely available package dti for the R Language
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Almeida A, Braz D, Nogueira L, Colaço M, Soares J, Cardoso S, Garcia E, Azambuja P, Gonzalez M, Mohammadi S, Tromba G, Barroso R. Phase contrast X-ray microtomography of the Rhodnius prolixus head: Comparison of direct reconstruction and phase retrieval approach. Radiat Phys Chem Oxf Engl 1993 2014. [DOI: 10.1016/j.radphyschem.2013.02.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Ahmadi M, Amiri R, Mohammadi S. The synthesis, characterization and biological evaluation of a stable phosphorus ylide and an imidazole as novel compounds. B CHEM SOC ETHIOPIA 2014. [DOI: 10.4314/bcse.v28i1.16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Manoochehri J, Masoumi Dehshiri R, Faraji H, Mohammadi S, Dastsooz H, Moradi T, Rezaei E, Sadeghi K, Fardaei M. Family screening for a novel ATP7B gene mutation, c.2335T>G, in the South of Iran. IRANIAN JOURNAL OF PEDIATRIC HEMATOLOGY AND ONCOLOGY 2014; 4:26-31. [PMID: 24734161 PMCID: PMC3980019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2013] [Accepted: 12/30/2013] [Indexed: 12/05/2022]
Abstract
BACKGROUND Wilson disease (WD) is a rare autosomal recessive disorder, which leads to copper metabolism, due to mutations in ATP7B gene. The gene responsible for WD consists of 21 exons that span a genomic region of about 80 kb and encodes a copper transporting P-type ATPase (ATP7B), a protein consisting of 1465 amino acids. Identifying mutation in ATP7B gene is important to find carrier individuals for proper counseling. A novel mutation in exon 8 of ATP7B gene, c.2335T>G (p.Trp779Gly), with severe neuropsychiatric condition in the South of Iran, was recently identified. The aim of this study was to screen 120 individuals from a large family using a simple amplification refractory mutation system PCR (ARMS-PCR) for carrier screening in the South of Iran. MATERIALS AND METHODS 120 individuals from family relatives of an index case in the Nasr Abad, south of Iran, were studied for screening of the c.2335T>G mutation. One patient with homozygous mutation and one homozygous normal individual were used as controls in this experiment. RESULTS Altogether, 16 out of 120 (13.3%) individuals within this region had heterozygous mutation. One individual with homozygote mutation was also identified. CONCLUSION Identification of carriers in families with affected individuals is of great importance for counseling before marriage. The results of this study can be used for further counseling programs in this population.
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Giuliani A, Mazzoni S, Manescu A, Mohammadi S, Tromba G, Diomede F, Piattelli A, Trubiani O. Osteoinductive properties study of collagenated Dual-Blocks by synchrotron radiation phase-contrast. Dent Mater 2014. [DOI: 10.1016/j.dental.2014.08.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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