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Kaffashi A, Mahmoudzadeh M, Ataei Kachooei S. Development of TaqMan Real-Time Polymerase Chain Reaction Assay for Detection of Chicken Anemia Virus in Newcastle Disease Vaccines. Arch Razi Inst 2021; 76:421-427. [PMID: 34824735 DOI: 10.22092/ari.2020.342677.1474] [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] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 07/27/2020] [Indexed: 10/14/2022]
Abstract
Exogenous chicken anemia virus (CAV) has been detected in commercial poultry vaccines in various countries of the world. The presence of unwanted CAV in vaccines not only influences the epidemiology of chicken infectious anemia disease, but may also lead to vaccine failure and confusing results when vaccine responses are monitored. To detect CAV in contaminated vaccines, nucleic acid testing (unlike conventional testing) has a shorter processing time and does not require cell culture or live animals. The aim of the current study was to develop a TaqMan real-time polymerase chain reaction (PCR) assay to detect and quantify CAV in poultry vaccines and investigate CAV contamination in Razi live Newcastle disease vaccines. The TaqMan real-time PCR assay was set up, optimized, and validated in successive experiments. A standard plasmid pUC-VP2 containing viral protein 2 of CAV was constructed and used in the assay to generate a standard curve to quantify CAV genomes. A clear linear correlation was observed between threshold cycle (Ct) values and plasmid copy numbers in the amplification plots of 10-fold serial dilution of the plasmid. Total DNA of three samples of each of four different Razi live Newcastle disease vaccines, namely LaSota, B1, clone.12IR, and thermo-resistant strains, were extracted and subjected to real-time PCR assay. No CAV contamination was detected in the Razi Live Newcastle vaccines. The developed TaqMan real-time PCR assay provides a quick, specific, and sensitive method for use in detecting CAV in quality control vaccine testing and viral load studies.
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Affiliation(s)
- A Kaffashi
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - M Mahmoudzadeh
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - S Ataei Kachooei
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
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2
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Edalati M, Mahmoudzadeh M, Safaie J, Wallois F, Moghimi S. Violation of rhythmic expectancies can elicit late frontal gamma activity nested in theta oscillations. Psychophysiology 2021; 58:e13909. [PMID: 34310719 PMCID: PMC9285090 DOI: 10.1111/psyp.13909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 06/25/2021] [Accepted: 07/08/2021] [Indexed: 11/29/2022]
Abstract
Rhythm processing involves building expectations according to the hierarchical temporal structure of auditory events. Although rhythm processing has been addressed in the context of predictive coding, the properties of the oscillatory response in different cortical areas are still not clear. We explored the oscillatory properties of the neural response to rhythmic incongruence and the cross-frequency coupling between multiple frequencies to further investigate the mechanisms underlying rhythm perception. We designed an experiment to investigate the neural response to rhythmic deviations in which the tone either arrived earlier than expected or the tone in the same metrical position was omitted. These two manipulations modulate the rhythmic structure differently, with the former creating a larger violation of the general structure of the musical stimulus than the latter. Both deviations resulted in an MMN response, whereas only the rhythmic deviant resulted in a subsequent P3a. Rhythmic deviants due to the early occurrence of a tone, but not omission deviants, seemed to elicit a late high gamma response (60-80 Hz) at the end of the P3a over the left frontal region, which, interestingly, correlated with the P3a amplitude over the same region and was also nested in theta oscillations. The timing of the elicited high-frequency gamma oscillations related to rhythmic deviation suggests that it might be related to the update of the predictive neural model, corresponding to the temporal structure of the events in higher-level cortical areas.
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Affiliation(s)
- M Edalati
- Inserm UMR1105, Groupe de Recherches sur l'Analyse Multimodale de la Fonction Cérébrale, CURS, Amiens, France.,Electrical Engineering Department, Ferdowsi University of Mashhad, Mashhad, Iran
| | - M Mahmoudzadeh
- Inserm UMR1105, Groupe de Recherches sur l'Analyse Multimodale de la Fonction Cérébrale, CURS, Amiens, France.,Inserm UMR1105, EFSN Pédiatriques, CHU Amiens sud, Amiens, France
| | - J Safaie
- Electrical Engineering Department, Ferdowsi University of Mashhad, Mashhad, Iran
| | - F Wallois
- Inserm UMR1105, Groupe de Recherches sur l'Analyse Multimodale de la Fonction Cérébrale, CURS, Amiens, France.,Inserm UMR1105, EFSN Pédiatriques, CHU Amiens sud, Amiens, France
| | - S Moghimi
- Inserm UMR1105, Groupe de Recherches sur l'Analyse Multimodale de la Fonction Cérébrale, CURS, Amiens, France.,Electrical Engineering Department, Ferdowsi University of Mashhad, Mashhad, Iran.,Inserm UMR1105, EFSN Pédiatriques, CHU Amiens sud, Amiens, France
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3
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Mahmoudzadeh M, Poormoradi B, Alijani S, Farhadian M, Kazemisaleh A. Efficacy of Er,Cr Laser incision Corticotomy in Rapid Maxillary Canine Retraction: A Split-Mouth Randomized Clinical Trial. J Lasers Med Sci 2020; 11:442-449. [PMID: 33425295 DOI: 10.34172/jlms.2020.69] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Introduction: This study sought to evaluate the efficacy of lasercision corticotomy for the acceleration of canine movement. Our secondary objectives were assessing the canine rotation, the rate of anchorage control, the level of pain, and the gingival index (GI). Methods: Twelve orthodontic patients (9 females and 3 males) referring to the School of Dentistry and one dental clinic from May 2019 to September 2019 participated in this split-mouth randomized clinical trial. The allocation of the test and control sides was performed by flipping a coin. The mean age of patients was 18.91±3.87 years (range 15-30 years). The treatment plan included maxillary first premolar extraction. Following the initial leveling and alignment phase, an initial impression was made. Corticotomy was carried out with the erbium, chromium-doped yttrium scandium gallium garnet (Er, Cr: YSGG) laser (3.5 W, 30 Hz, 40% air, 80% water) in one maxillary quadrant (the laser side). Canine retraction was immediately initiated following surgery using nickel-titanium closed-coil springs with 150 g force. The impression was repeated 1 month after the onset of retraction. The casts were scanned, and the distance between the canine cusp tip and the rugae line was measured to quantify the amount of anteroposterior canine movement. The molar anchorage control was also evaluated by measuring the distance between the mesial contact of the permanent first molar and the rugae line. Gingival health was evaluated using the GI. The modified McGill pain questionnaire was used to assess the level of patients' pain. Results: Lasercision corticotomy accelerated canine retraction with no adverse effect on gingival health. Anchorage loss in the posterior teeth and pain scores were not significantly different between the control and laser sides. Conclusion: Laser corticotomy can effectively accelerate canine retraction with no complications or discomfort for the patients.
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Affiliation(s)
- Majid Mahmoudzadeh
- Department of Orthodontics, Faculty of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Banafshe Poormoradi
- Assistant Professor, Laser Research Center, Department of Periodontology, School of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Sara Alijani
- Orthodontic Department, Dental Faculty, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Maryam Farhadian
- Assistant Professor of Biostatistics, Modeling of Noncommunicable Diseases Research Center, Department of Biostatistics, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Azadeh Kazemisaleh
- Postgraduate Student, Department of Orthodontics, School of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran
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Mahmoudzadeh M, Alijani S, Soufi LR, Farhadian M, Namdar F, Karami S. Effect of CO2 Laser on the Prevention of White Spot Lesions During Fixed Orthodontic Treatment: A Randomized Clinical Trial. Turk J Orthod 2019; 32:165-171. [PMID: 31565692 DOI: 10.5152/turkjorthod.2019.18052] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 07/11/2018] [Accepted: 01/20/2019] [Indexed: 11/22/2022]
Abstract
Objective This study aimed to assess the effect of carbon dioxide (CO2) laser on prevention of white spot lesions (WSLs) associated with fixed orthodontic treatment. Methods In this parallel controlled trial, 554 maxillary anterior teeth in 95 patients with age range of 12-30 years were included. The samples were randomly divided in two groups: 1) CO2 laser (n=278) and 2) control (n=276) groups. Following bracket attachment, the teeth in the laser group were exposed to CO2 laser (0.4 mw, 10.6 μm, 5 Hz) for 20 s, and the control group received placebo light. Incidence, severity, and extent of the lesions were assessed in four surface regions (gingival, incisal, mesial, and distal) at baseline and 6 months post-irradiation. The inter-group comparison was performed by the Mann-Whitney U test and McNemar analysis. Results A significant difference regarding WSLs incidence in all teeth was observed between the two study groups (p<0.001). The two study groups illustrated a significant difference in lesion extent and incidence in incisal, mesial, and distal regions (p<0.05). The WSLs were significantly different in terms of severity in the incisal and mesial sites (p<0.05). Conclusion The CO2 laser irradiation seemed to effectively prevent incidence of WSLs. In addition, its effectiveness varied depending on the surface region.
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Affiliation(s)
- Majid Mahmoudzadeh
- Department of Orthodontics, Hamadan University of Medical Sciences School of Dentistry, Hamadan, Iran
| | - Sara Alijani
- Department of Orthodontics, Hamadan University of Medical Sciences School of Dentistry, Hamadan, Iran
| | - Loghman Rezaei Soufi
- Department of Operative, Dental Research Center, Hamadan University of Medical Sciences School of Dentistry, Hamadan, Iran
| | - Maryam Farhadian
- Department of Biostatistics, Hamadan University of Medical Sciences School of Public Health and Research Center for Health Sciences, Hamadan, Iran
| | - Fatemeh Namdar
- Dental Materials Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Somayeh Karami
- Post Graduate Orthodontic Student of Hamadan School of Dentistry, Department of Orthodontics, Hamadan University of Medical Sciences School of Dentistry, Hamadan, Iran
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Khosravi M, Ugolini A, Miresmaeili A, Mirzaei H, Shahidi-Zandi V, Soheilifar S, Karami M, Mahmoudzadeh M. Tooth-borne versus bone-borne rapid maxillary expansion for transverse maxillary deficiency: A systematic review. Int Orthod 2019; 17:425-436. [PMID: 31280998 DOI: 10.1016/j.ortho.2019.06.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [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] [Indexed: 11/18/2022]
Abstract
PURPOSE The aim of this study was to compare dentoskeletal effects of bone-borne expanders with those of conventional expanders in adolescent and adults having transverse maxillary deficiency. METHODS All randomized clinical trials (RCTs) comparing the effects of bone-borne with those of tooth-borne expansion for treatment of maxillary transverse deficiency in adults and adolescents with maxillary transverse deficiency or posterior crossbite were included. The systematic search was irrespective of language and publication type. The electronic search was conducted from 1980 to January 2018. RESULTS The electronic searches retrieved 713 references after screening for eligibility criteria. Eight studies met the inclusion criteria for this systematic review involving 289 participants. Four studies compared rapid maxillary expansion (RME) between bone-borne and tooth-borne devices and indicated effectiveness of both devices on maxillary expansion. In the first molar region, there was no significant difference between two devices in either skeletal or dental expansion. Two studies compared the effects of bone-borne and tooth-borne device following SARME and suggested no significant difference regarding amount and pattern of expansion at various levels and in molar and premolar region between two groups. Two studies compared bone-borne and tooth-bone-borne devices. CONCLUSION Within the limit of the present evidence regarding maxillary expansion, it seems that both tooth-borne and bone-borne devices result in the same outcome in terms of the amount of maxillary expansion, dental tipping, stability and perceived pain both in RME and SARME procedure. PROSPERO registration: CRD42017061078.
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Affiliation(s)
- Mahdieh Khosravi
- Orthodontic Department Dental Faculty, 17 Shahrivar boulevard, Seman, Iran
| | - Alessandro Ugolini
- University of Genoa, Orthodontic Department, Largo Rosanna Benzi 10, Genova, Italy
| | - Amirfarhang Miresmaeili
- Hamedan University of Medical sciences, Orthodontic Department Dental Faculty, Shahid Fahmide Boulevard, Hamedan, Iran
| | - Hamed Mirzaei
- Faculty of Management of University of Tehran, Tehran, Iran
| | - Vahid Shahidi-Zandi
- Hamedan University of Medical sciences, Orthodontic Department Dental Faculty, Shahid Fahmide Boulevard, Hamedan, Iran
| | - Sepideh Soheilifar
- Hamedan University of Medical sciences, Orthodontic Department Dental Faculty, Shahid Fahmide Boulevard, Hamedan, Iran
| | - Manoochehr Karami
- Hamedan University of medical sciences, Department of Epidemiology School of Health, Shahid Fahmide boulevard, Hamedan, Iran
| | - Majid Mahmoudzadeh
- Hamedan University of Medical sciences, Orthodontic Department Dental Faculty, Shahid Fahmide Boulevard, Hamedan, Iran.
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Shadkam A, Moghimi S, Routier L, Mahmoudzadeh M, Wallois F. The intimate relationship between coalescent generators in early premature neonates. Neurophysiol Clin 2019. [DOI: 10.1016/j.neucli.2019.05.030] [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] Open
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7
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Mony S, Calippe O, Mahmoudzadeh M, Wallois F, Bourel-Ponchel E. Automatic burst detection in a large cohort of extremely preterm infants, relation with brain maturation and neuro-developmental outcome. Neurophysiol Clin 2019. [DOI: 10.1016/j.neucli.2019.05.039] [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] Open
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8
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Bourel-Ponchel E, Mahmoudzadeh M, Adebimpe A, Wallois F. Functional and structural network disorganizations in typical ECTS and impact on cognitive neurodevelopment. Neurophysiol Clin 2019. [DOI: 10.1016/j.neucli.2019.05.041] [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] Open
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9
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Routier L, Mahmoudzadeh M, Panzani M, Kongolo G, Wallois F. Plasticity of neonatal neuronal networks in very premature infants: Source localization of temporal theta activity, the first endogenous neural biomarker, in temporoparietal areas. Neurophysiol Clin 2019. [DOI: 10.1016/j.neucli.2019.05.031] [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: 11/17/2022] Open
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10
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Mahmoudzadeh M, Farhadian M, Alijani S, Azizi F. Comparaison de deux arcs initiaux (A-NiTi et NiTi thermiques) pour évaluer la quantité d’alignement dentaire et la perception de la douleur : étude clinique randomisée. Int Orthod 2018; 16:60-72. [PMID: 29478924 DOI: 10.1016/j.ortho.2018.01.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Majid Mahmoudzadeh
- Département d'orthodontie, faculté dentaire, université de sciences médicales, Hamadan, Iran
| | - Maryam Farhadian
- Unité de recherche de modélisation, biostatistique et santé publique des maladies non transmissibles, université d'Hamadan de sciences médicales, Hamadan, Iran
| | - Sara Alijani
- Département d'orthodontie, faculté dentaire, université de sciences médicales, Hamadan, Iran
| | - Fatemeh Azizi
- Département d'orthodontie, faculté dentaire, université de sciences médicales, Kermanshah, Iran.
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Mahmoudzadeh M, Rezaei-Soufi L, Farhadian N, Jamalian SF, Akbarzadeh M, Momeni M, Basamtabar M. Effect of CO2 Laser and Fluoride Varnish Application on Microhardness of Enamel Surface Around Orthodontic Brackets. J Lasers Med Sci 2017; 9:43-49. [PMID: 29399311 DOI: 10.15171/jlms.2018.10] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Introduction: Orthodontic treatment has many advantages such as esthetic improvement and self-esteem enhancement; yet it has some disadvantages such as increasing the risk of formation of white spot lesions, because it makes oral hygiene more difficult. It is rational to implement procedures to prevent these lesions. The present study was aimed to assess the effect of CO2 laser and fluoride varnish on the surface of the enamel surface microhardness around the orthodontic braces. Methods: Eighty extracted premolar teeth were selected, scaled, polished with nonfluoridated pumic and metal brackets were bonded to them. Then, they were randomly allocated to 5 groups: control (neither fluoride nor laser is used on enamel surfaces), fluoride (4 minutes fluoride varnish treatment of the enamel surfaces), CO2 laser (10.6 µm CO2 laser irradiation of the teeth), laserfluoride (fluoride application after laser irradiation) and fluoride-laser (fluoride was applied and then teeth were irradiated with laser). After surface treatment around brackets on enamel, the samples were stored in 0.1% thymol for less than 5 days and then they were exposed to a 10-day microbiological caries model. Microhardness values of enamel were evaluated with Vickers test. One sample of each group (5 teeth from 80 samples) was prepared for SEM (scanning electron microscopy) and the data from 75 remaining teeth were analyzed with analysis of variance (ANOVA) and chi-square tests (α =0.05). Results: Microhardness mean values from high to low were as follow: fluoride-laser, laser-fluoride, laser, fluoride and control. Microhardness in fluoride-laser group was significantly higher compared with that of the control group. Distribution adhesive remnant index (ARI) scores were significantly different between groups and most of bond failures occurred at the enamel-adhesive interface in groups 2 to 5 and at the adhesive-bracket interface in the control group. Conclusion: Combination of fluoride varnish and CO2 laser irradiation can reduce enamel demineralization around orthodontic brackets.
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Affiliation(s)
- Majid Mahmoudzadeh
- Orthodontics Department, Dental Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Loghman Rezaei-Soufi
- Department of Restorative Dentistry, Dental Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Nasrin Farhadian
- Orthodontics Department, Dental Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | | | - Mahdi Akbarzadeh
- Department of Biostatistics, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammadali Momeni
- Orthodontics Department, Dental Faculty, Shahrekord University of Medical Sciences, Chaleshtar, Shahrekord, Iran
| | - Masome Basamtabar
- Orthodontic Department, Dental Faculty, Kermanshah University of Medical Sciences, Kermanshah, Iran
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12
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Routier L, Mahmoudzadeh M, Panzani M, Azizollahi H, Goudjil S, Kongolo G, Wallois F. Plasticity of neonatal neuronal networks in very premature infants: Source localization of temporal theta activity, the first endogenous neural biomarker, in temporoparietal areas. Hum Brain Mapp 2017; 38:2345-2358. [PMID: 28112458 DOI: 10.1002/hbm.23521] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Revised: 01/06/2017] [Accepted: 01/08/2017] [Indexed: 01/01/2023] Open
Abstract
Temporal theta slow-wave activity (TTA-SW) in premature infants is a specific signature of the early development of temporal networks, as it is observed at the turning point between non-sensory driven spontaneous local processing and cortical network functioning. The role in development and the precise location of TTA-SW remain unknown. Previous studies have demonstrated that preterms from 28 weeks of gestational age (wGA) are able to discriminate phonemes and voice, supporting the idea of a prior genetic structural or activity-dependent fingerprint that would prepare the auditory network to compute auditory information at the onset of thalamocortical connectivity. They recorded TTA-SW in 26-32 wGA preterms. The rate of TTA-SW in response to click stimuli was evaluated using low-density EEG in 30 preterms. The sources of TTA-SW were localized by high-density EEG using different tissues conductivities, head models and mathematical models. They observed that TTA-SW is not sensory driven. Regardless of age, conductivities, head models and mathematical models, sources of TTA-SW were located adjacent to auditory and temporal junction areas. These sources become situated closer to the surface during development. TTA-SW corresponds to spontaneous transient endogenous activities independent of sensory information at this period which might participate in the implementation of auditory, language, memory, attention and or social cognition convergent and does not simply represent a general interaction between the subplate and the cortical plate. Hum Brain Mapp 38:2345-2358, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- L Routier
- Inserm U 1105, University of Picardie Instead of Picardy, Amiens University Hospital, Amiens, France.,Pediatric Nervous System Investigation Unit, Amiens University Hospital, Amiens, France
| | - M Mahmoudzadeh
- Inserm U 1105, University of Picardie Instead of Picardy, Amiens University Hospital, Amiens, France
| | - M Panzani
- Inserm U 1105, University of Picardie Instead of Picardy, Amiens University Hospital, Amiens, France
| | - H Azizollahi
- Inserm U 1105, University of Picardie Instead of Picardy, Amiens University Hospital, Amiens, France
| | - S Goudjil
- Inserm U 1105, University of Picardie Instead of Picardy, Amiens University Hospital, Amiens, France.,NICU Amiens University Hospital, Amiens, France
| | - G Kongolo
- Inserm U 1105, University of Picardie Instead of Picardy, Amiens University Hospital, Amiens, France.,NICU Amiens University Hospital, Amiens, France
| | - F Wallois
- Inserm U 1105, University of Picardie Instead of Picardy, Amiens University Hospital, Amiens, France.,Pediatric Nervous System Investigation Unit, Amiens University Hospital, Amiens, France
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13
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Farhadian N, Bidgoli M, Jafari F, Mahmoudzadeh M, Yaghobi M, Miresmaeili A. Comparison of Electric Toothbrush, Persica and Chlorhexidine Mouthwashes on Reduction of Gingival Enlargement in Orthodontic Patients: A Randomised Clinical Trial. Oral Health Prev Dent 2016; 13:301-7. [PMID: 25610916 DOI: 10.3290/j.ohpd.a33443] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
PURPOSE To compare the efficacy of chlorhexidine, Persica mouthwash and electric toothbrushes in improving gingival enlargement in patients with fixed orthodontic appliances. MATERIALS AND METHODS Seventy-two orthodontic patients with at least two sites of gingival enlargement were randomly allocated into four equal groups: 1) manual toothbrush; 2) electric toothbrush; 3) manual toothbrush+Persica mouthwash; 4) manual toothbrush+chlorhexidine mouthwash. All participants were instructed to brush their teeth at least twice a day. The subjects in groups 3 and 4 were instructed to use Persica or chlorhexidine according to the respective manufacturer's instructions. Bleeding on probing (BOP) index, gingival index (GI), O'Leary's plaque index (PI) and constructed hyperplastic index (HI) of all the subjects were measured in a blind manner at the start of the study and 2 weeks later. Changes of indices in the entire oral cavity and individual affected teeth were analysed with SPSS 16 using chi-square, ANOVA, ANCOVA, LSD and the paired t-test. RESULTS In the entire oral cavity, there was a statistically significant improvement in indices in all the groups except for HI, which significantly improved only in group 4 (p=0.001). Data of individual teeth with hyperplastic gingiva showed significant reduction of all the variables except for HI in group 1 (p=0.08). No significant differences were found between groups 1 and 2 or between groups 3 and 4. CONCLUSION The efficacy of Persica was similar to that of chlorhexidine in improving gingival conditions. None of the treatment modalities could reduce gingival enlargement to the clinically acceptable level of health.
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14
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Shokri A, Mahmoudzadeh M, Baharvand M, Mortazavi H, Faradmal J, Khajeh S, Yousefi F, Noruzi-Gangachin M. Position of impacted mandibular third molar in different skeletal facial types: First radiographic evaluation in a group of Iranian patients. Imaging Sci Dent 2014; 44:61-5. [PMID: 24701460 PMCID: PMC3972407 DOI: 10.5624/isd.2014.44.1.61] [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: 07/25/2013] [Revised: 08/16/2013] [Accepted: 09/01/2013] [Indexed: 11/18/2022] Open
Abstract
Purpose This study was performed to evaluate the position of impacted mandibular third molars in different skeletal facial types among a group of Iranian patients. Materials and Methods A total of 400 mandibular third molars in 200 subjects with different types of facial growth were radiographically investigated for their positions according to their types of facial growth on the basis of the β angle. The subjects were divided into three groups (class I, II, and III) according to ANB angle, representing the anteroposterior relationship of the maxilla to the mandible. Meanwhile, the subjects were also divided into three groups (long, normal, and short face) according to the angle between the stella-nasion and mandibular plane (SNGoGn angle). ANOVA was used for statistical analysis. Results The mean β angle showed no significant difference among class I, II, and III malocclusions (df=2, F=0.669, p=0.513). The same results were also found in short, normal, and long faces (df=1.842, F=2, p=0.160). The mesioangular position was the most frequent one in almost all of the facial growth patterns. Distoangular and horizontal positions of impaction were not found in the subjects with class III and normal faces. In the long facial growth pattern, the frequency of vertical and distoangular positions were not different. Conclusion In almost all of the skeletal facial types, the mesioangular impaction of the mandibular third molar was the most prevalent position, followed by the horizontal position. In addition, β angle showed no significant difference in different types of facial growth.
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Affiliation(s)
- Abbas Shokri
- Department of Oral and Maxillofacial Radiology, Dental School, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Majid Mahmoudzadeh
- Department of Orthodontics, Dental School, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Maryam Baharvand
- Department of Oral Medicine, Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamed Mortazavi
- Department of Oral Medicine, Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Javad Faradmal
- Department of Epidemiology and Statistics, Medical School, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Samira Khajeh
- Department of Oral and Maxillofacial Radiology, Dental School, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Faezeh Yousefi
- Department of Oral and Maxillofacial Radiology, Dental School, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Maruf Noruzi-Gangachin
- Department of Oral and Maxillofacial Radiology, Dental School, Hamadan University of Medical Sciences, Hamadan, Iran
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Lefranc M, Mahmoudzadeh M, Le Gars D, Wallois F, Krystowiak P. Réponse hémodynamique corticale induite par la stimulation cérébrale profonde des deux noyaux sous-thalamiques lors d’une tâche motrice : résultats préliminaires d’une étude en imagerie optique. Neurochirurgie 2012. [DOI: 10.1016/j.neuchi.2012.10.077] [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: 10/27/2022]
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16
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Rokn AR, Saffarpour A, Sadrimanesh R, Iranparvar K, Saffarpour A, Mahmoudzadeh M, Soolari A. Implant site development by orthodontic forced eruption of nontreatable teeth: a case report. Open Dent J 2012; 6:99-104. [PMID: 22715348 PMCID: PMC3377904 DOI: 10.2174/1874210601206010099] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [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: 02/12/2012] [Revised: 03/08/2012] [Accepted: 03/08/2012] [Indexed: 11/22/2022] Open
Abstract
Background:
Loss of bone and soft tissue attachment are common sequelae of periodontitis that may jeopardize the aesthetic outcome and compromise the functional and aesthetic outcomes of treatment. The following case report describes one of the most predictable techniques of vertical ridge augmentation, which is orthodontic extrusion or forced eruption of hopeless teeth. Method:
A 34-year-old woman who presented with severe attachment loss and deep pockets was diagnosed with generalized aggressive periodontitis. The mobile maxillary incisors were consequently extracted and were replaced with dental implants. However, prior to extraction, orthodontic extrusion of the hopeless incisors was performed to correct vertical ridge defects. Following extrusion and extraction of the maxillary incisors, to prevent soft tissue collapse and to preserve the papillae during socket healing, the crowns of the extracted teeth were used as pontics on a removable partial provisional denture. After 8 weeks, the implants were placed, and an immediate functional restoration was delivered. After 4 months of healing, a fixed definitive partial prosthesis was fabricated and delivered. Result:
After periodontal treatment, over a 2-year period, the progression of aggressive periodontitis was controlled. The mean vertical movement of marginal bone was 3.6 mm. The use of the crowns of extracted teeth appears to be an effective method to maintain papillae. Conclusions:
Orthodontic extrusion is a predictable method for the correction of vertical ridge defects. Orthodontic treatment does not aggravate or hasten the progression of aggressive periodontitis.
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Affiliation(s)
- Amir Reza Rokn
- Dental Implant Research Centre, Tehran University of Medical Sciences, Iran
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17
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Lefranc M, Mahmoudzadeh M, Le Gars D, Krystowiak P, Wallois F. Hemodynamic response induced by deep Brain stimulation of subthalamic nucleus and a motor task: A preliminary optical imaging study. Neurophysiol Clin 2012. [DOI: 10.1016/j.neucli.2012.04.042] [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: 11/29/2022] Open
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18
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Mahmoudzadeh M, Fournier M, Dehaene-Lambertz G, Kongolo G, Goudjil S, Grebe R, Wallois F. At the onset of the linguistic network in the human brain. Neurophysiol Clin 2012. [DOI: 10.1016/j.neucli.2012.04.005] [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: 11/26/2022] Open
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19
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Wallois F, Mahmoudzadeh M, Patil A, Grebe R. Usefulness of simultaneous EEG-NIRS recording in language studies. Brain Lang 2012; 121:110-23. [PMID: 21546072 DOI: 10.1016/j.bandl.2011.03.010] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2010] [Revised: 03/08/2011] [Accepted: 03/21/2011] [Indexed: 05/11/2023]
Abstract
One of the most challenging tasks in neuroscience in language studies, is investigation of the brain's ability to integrate and process information. This task can only be successfully addressed by applying various assessment techniques integrated into a multimodal approach. Each of these techniques has its advantages and disadvantages, but help to elucidate certain aspects of the capacity of neural networks to process information. These methods provide information about changes in electrical, hemodynamic and metabolic activities. Ideally, they should be noninvasive in order to facilitate their use particularly in children. In the present review, we describe the advantages of simultaneous electroencephalographic (EEG) acquisition with near infrared spectroscopy (NIRS) to provide a better understanding of the mechanisms involved in cerebral activation. This coregistration is also useful to avoid misleading interpretation of NIRS, notably during the various phases of sleep. Development and implementation of the various tools required and assessment strategies are also discussed.
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Affiliation(s)
- F Wallois
- GRAMFC, EA4293, Research Group on Functional Cerebral Multimodal Analysis, Faculty of Medecine, 3 rue des Louvels, 80036 Amiens, France.
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20
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Zolfaghari B, Shokoohinia Y, Ramezanlou P, Sadeghi A, Mahmoudzadeh M, Minaiyan M. Effects of methanolic and butanolic fractions of Allium elburzense Wendelbo bulbs on blood glucose level of normal and STZ-induced diabetic rats. Res Pharm Sci 2012; 7:201-7. [PMID: 23248670 PMCID: PMC3523411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Allium elburzense (A. elborzense, Alliaceae), a plant rich in saponins, is an edible vegetable in northern Iran with a folk background use as antidiabetic which has not yet been examined for this indication. To evaluate the antidiabetic potential of A. elburzense, its hydroalcoholic (HdAE) and butanolic extracts (BuE) were examined. The acute (1, 2, 3, 4, 8 h) and sub-acute (11 days) effects of oral (p.o.) and intraperitoneal (i.p.) administration of HdAE and BuE of A. elburzense bulbs in different doses were evaluated on blood glucose levels of normal and streptozotocin (STZ, 55 mg/kg body weight)-induced diabetic rats. Glibenclamide (1 mg/kg b.w.) was used as reference drug. Sub-acute treatment with HdAE for 11 days reduced significantly blood glucose levels in diabetic rats (at least P<0.05), while BuE was effective only following i.p. administration (P<0.01). Acute administration did not reduce blood glucose level in normal and diabetic animals. It is concluded that HdAE of A. elburzense exhibited a significant antihyperglycemic activity following chronic administration. These results provide evidence for potential use of A. elburzense in diabetes mellitus considering the fact that this plant is endemic to a location of Iran where diabetes is a high prevalence disorder.
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Affiliation(s)
- B. Zolfaghari
- Department of Pharmacognosy, School of Pharmacy and Pharmaceutical Sciences and Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, I.R.Iran
| | - Y. Shokoohinia
- Department of Pharmacognosy and Biotechnology, School of Pharmacy and Pharmaceutical Sciences, Kermanshah University of Medical Sciences, Kermanshah, I.R.Iran
| | - P. Ramezanlou
- Department of Pharmacognosy, School of Pharmacy and Pharmaceutical Sciences and Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, I.R.Iran.,Department of Pharmacology, School of Pharmacy and Pharmaceutical Sciences and Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, I.R.Iran
| | - A. Sadeghi
- Department of Pharmacognosy, School of Pharmacy and Pharmaceutical Sciences and Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, I.R.Iran.,Department of Pharmacology, School of Pharmacy and Pharmaceutical Sciences and Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, I.R.Iran
| | - M. Mahmoudzadeh
- Department of Pharmacognosy, School of Pharmacy and Pharmaceutical Sciences and Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, I.R.Iran.,Department of Pharmacology, School of Pharmacy and Pharmaceutical Sciences and Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, I.R.Iran
| | - M. Minaiyan
- Department of Pharmacology, School of Pharmacy and Pharmaceutical Sciences and Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, I.R.Iran.,
Corresponding author: M. Minaiyan, this paper is extracted from the research grant No. 185105 Tel. 0098 311 7922623, Fax. 0098 311 6680011
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Mahmoudzadeh M, Dehaene-Lambertz G, Kongolo G, Goudjil S, Grebe R, Wallois F. W16.2 Impact of neonatal intraventricular hemorrhage on auditory hemodynamic response. Clin Neurophysiol 2011. [DOI: 10.1016/s1388-2457(11)60171-5] [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: 10/17/2022]
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Wallois F, Mahmoudzadeh M, Kazemi K, Roche N, Aarabi A, Kongolo G, Goudjil S, Grebe R. W16.1 Dynamics of the preterm brain through simultaneous EEG-NIRS coregistration. Clin Neurophysiol 2011. [DOI: 10.1016/s1388-2457(11)60170-3] [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: 10/17/2022]
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Varshosaz J, Hassanzadeh F, Mahmoudzadeh M, Sadeghi A. Preparation of cefuroxime axetil nanoparticles by rapid expansion of supercritical fluid technology. POWDER TECHNOL 2009. [DOI: 10.1016/j.powtec.2008.06.009] [Citation(s) in RCA: 19] [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] [Indexed: 10/21/2022]
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