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Abstract
BACKGROUND One of the most common causes of respiratory distress in newborns is transient tachypnea of the newborn (TTN). Salbutamol is often suggested to increase the rate of pulmonary fluid absorption in newborns with TTN. This study aimed to evaluate the efficacy of inhaled salbutamol in TTN management. METHODS This double-blind clinical trial was conducted on 52 newborns admitted to the neonatal ICU of Fatemieh Hospital of Hamadan, Iran. The newborns were randomly assigned to 2 groups of equal members: one group received 2 mL of nebulized sodium chloride concentration (control group), and the other group was treated with 0.1 mg/kg of salbutamol (treatment group). The clinical outcomes were then compared before and 0.5, 1, and 4 h after the intervention. The data were recorded in a checklist and then were statistically analyzed in SPSS 16: the significant level was decided to be P < .05. RESULTS The comparison of TTN scores revealed a significant difference between the 2 groups 1 h (P = .005) and 4 h (P < .001 per Table 3) after the intervention. Moreover, the mean FIO2 1 h after the intervention was 53.3 ± 6.6 in the treatment group and 57.7 ± 7.5 in the control group (P = .02). The mean duration of respiratory support in the treatment and control groups was 2.4 ± 2.7 and 3.1 ± 0.8 d, respectively, (P = .002). The findings suggested no statistically significant difference between the 2 groups regarding the adverse effects, length of stay (LOS), duration of antibiotics intake, oral feeding resumption time, and maximum oral feeding time (P > .05 for all). CONCLUSIONS The study results indicated that inhaled salbutamol significantly decreased the TTN clinical score, oxygen demands, and duration of respiratory support, whereas there was no significant difference between the groups in terms of LOS.
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Affiliation(s)
- Behnaz Basiri
- Department of Pediatrics, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Nishteman Sadeghi
- Department of Pediatrics, Kurdistan University of Medical Sciences, Sanandaj, Iran
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Puttaert D, Coquelet N, Wens V, Peigneux P, Fery P, Rovai A, Trotta N, Sadeghi N, Coolen T, Bier JC, Goldman S, De Tiège X. Alterations in resting-state network dynamics along the Alzheimer's disease continuum. Sci Rep 2020; 10:21990. [PMID: 33319785 PMCID: PMC7738511 DOI: 10.1038/s41598-020-76201-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [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: 05/18/2020] [Accepted: 10/26/2020] [Indexed: 12/26/2022] Open
Abstract
Human brain activity is intrinsically organized into resting-state networks (RSNs) that transiently activate or deactivate at the sub-second timescale. Few neuroimaging studies have addressed how Alzheimer's disease (AD) affects these fast temporal brain dynamics, and how they relate to the cognitive, structural and metabolic abnormalities characterizing AD. We aimed at closing this gap by investigating both brain structure and function using magnetoencephalography (MEG) and hybrid positron emission tomography-magnetic resonance (PET/MR) in 10 healthy elders, 10 patients with subjective cognitive decline (SCD), 10 patients with amnestic mild cognitive impairment (aMCI) and 10 patients with typical Alzheimer's disease with dementia (AD). The fast activation/deactivation state dynamics of RSNs were assessed using hidden Markov modeling (HMM) of power envelope fluctuations at rest measured with MEG. Correlations were sought between temporal properties of HMM states and participants' cognitive test scores, whole hippocampal grey matter volume and regional brain glucose metabolism. The posterior default-mode network (DMN) was less often activated and for shorter durations in AD patients than matched healthy elders. No significant difference was found in patients with SCD or aMCI. The time spent by participants in the activated posterior DMN state did not correlate significantly with cognitive scores, nor with the whole hippocampal volume. However, it correlated positively with the regional glucose consumption in the right dorsolateral prefrontal cortex (DLPFC). AD patients present alterations of posterior DMN power activation dynamics at rest that identify an additional electrophysiological correlate of AD-related synaptic and neural dysfunction. The right DLPFC may play a causal role in the activation of the posterior DMN, possibly linked to the occurrence of mind wandering episodes. As such, these data might suggest a neural correlate of the decrease in mind wandering episodes reported in pathological aging.
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Affiliation(s)
- D Puttaert
- Laboratoire de Cartographie fonctionnelle du Cerveau (LCFC), UNI-ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Brussels, Belgium. .,Neuropsychology and Functional Neuroimaging Research Unit (UR2NF), Center for Research in Cognition and Neurosciences (CRCN), UNI-ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Brussels, Belgium.
| | - N Coquelet
- Laboratoire de Cartographie fonctionnelle du Cerveau (LCFC), UNI-ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Brussels, Belgium
| | - V Wens
- Laboratoire de Cartographie fonctionnelle du Cerveau (LCFC), UNI-ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Brussels, Belgium.,Department of Functional Neuroimaging, Service of Nuclear Medicine, CUB Hôpital Erasme, Université libre de Bruxelles (ULB), Brussels, Belgium
| | - P Peigneux
- Neuropsychology and Functional Neuroimaging Research Unit (UR2NF), Center for Research in Cognition and Neurosciences (CRCN), UNI-ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Brussels, Belgium
| | - P Fery
- Neuropsychology and Functional Neuroimaging Research Unit (UR2NF), Center for Research in Cognition and Neurosciences (CRCN), UNI-ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Brussels, Belgium.,Service of Neuropsychology and Speech Therapy, CUB Hôpital Erasme, Université libre de Bruxelles (ULB), Brussels, Belgium
| | - A Rovai
- Laboratoire de Cartographie fonctionnelle du Cerveau (LCFC), UNI-ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Brussels, Belgium.,Department of Functional Neuroimaging, Service of Nuclear Medicine, CUB Hôpital Erasme, Université libre de Bruxelles (ULB), Brussels, Belgium
| | - N Trotta
- Laboratoire de Cartographie fonctionnelle du Cerveau (LCFC), UNI-ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Brussels, Belgium.,Department of Functional Neuroimaging, Service of Nuclear Medicine, CUB Hôpital Erasme, Université libre de Bruxelles (ULB), Brussels, Belgium
| | - N Sadeghi
- Department of Radiology, CUB Hôpital Erasme, Université libre de Bruxelles (ULB), Brussels, Belgium
| | - T Coolen
- Department of Radiology, CUB Hôpital Erasme, Université libre de Bruxelles (ULB), Brussels, Belgium
| | - J-C Bier
- Department of Neurology, CUB Hôpital Erasme, Université libre de Bruxelles (ULB), Brussels, Belgium
| | - S Goldman
- Laboratoire de Cartographie fonctionnelle du Cerveau (LCFC), UNI-ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Brussels, Belgium.,Department of Functional Neuroimaging, Service of Nuclear Medicine, CUB Hôpital Erasme, Université libre de Bruxelles (ULB), Brussels, Belgium
| | - X De Tiège
- Laboratoire de Cartographie fonctionnelle du Cerveau (LCFC), UNI-ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Brussels, Belgium.,Department of Functional Neuroimaging, Service of Nuclear Medicine, CUB Hôpital Erasme, Université libre de Bruxelles (ULB), Brussels, Belgium
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Ghiasi R, Sadeghi N. Effect of External Electric Field on the Electronic Structure and Aromaticity of Cr(CO)3(η6-C6H6) Complex. RUSS J INORG CHEM+ 2019. [DOI: 10.1134/s0036023619080114] [Citation(s) in RCA: 2] [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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Sadeghi N, Ghiasi R, Jamehbozorgi S. A Computational Approach for Hydrolysis of the Third-Generation Anticancer Drug: Trans-Platinum(Ii) Complex of 3-Aminoflavone. J STRUCT CHEM+ 2018. [DOI: 10.1134/s002247661808005x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [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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Sadeghi N, Ahangari R, Kasesaz Y, Noori-kalkhoran O. Dose assessment for emergency workers in early phase of Fukushima Daiichi nuclear power plant accident. KERNTECHNIK 2017. [DOI: 10.3139/124.110799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AbstractIn the case of Fukushima Daiichi nuclear power plant (FNP) accident, the radioactive material was released from reactor units 1–3 and transported to short and long distances due to the atmospheric pathways-motions. Power sources for monitoring posts were lost due to earthquake and tsunami. Based on air dose rates and other data measured by monitoring cars, the amount of radioactive material released to the atmosphere from the power station was obtained. The atmospheric dispersion and the transport model used in the RASCAL code, estimate the radionuclide concentrations downwind, both in the air and on the ground due to deposition. The calculated concentrations are then used to estimate the projected doses for workers in vicinity of the accident area in the first minutes of accident time. For dose modeling, we assumed that each worker was 15 min in vicinity of FNP in accident situation, once without and once with protective clothes or respirator. According to Tokyo Electric Power Company (TEPCO) report six workers had received doses over 250 mSv (309 to 678 mSv) apparently due to inhaling Iodine-131 fume. In this paper the calculated dose results using RASCAL code shows that, if emergency workers who work in early phase of accident had not used protective equipment, for 15 min, inhalation doses from iodine in their thyroid gland up to 12 March afternoon would have been 520 mSv. A comparison between calculation results and TEPCO report shows that dose calculated virtually is nearly equal to TEPCO measurement results.
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Affiliation(s)
- N. Sadeghi
- 1Reactor research school, Nuclear Science and Technology Research Institute (NSTRI), P.O. Box 11365-3486, Tehran
| | - R. Ahangari
- 1Reactor research school, Nuclear Science and Technology Research Institute (NSTRI), P.O. Box 11365-3486, Tehran
| | - Y. Kasesaz
- 1Reactor research school, Nuclear Science and Technology Research Institute (NSTRI), P.O. Box 11365-3486, Tehran
| | - O. Noori-kalkhoran
- 1Reactor research school, Nuclear Science and Technology Research Institute (NSTRI), P.O. Box 11365-3486, Tehran
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Trivedi L, Tumati V, Li J, Patel P, Vusirikala M, Sadeghi N, Rizvi S, Chen W, Wachsmann J, Scaglioni P, Collins R, Desai N. Patterns of Failure Analysis of Patients With Double Hit or Double Expressor Lymphomas: Implications for Radiation Therapy. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.449] [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]
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7
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Chaskis E, Minichini V, Luce S, Devriendt D, Goldman S, De Witte O, Sadeghi N, Lefranc F. [Contribution of temozolomide chemotherapy for intramedullary grade II spinal cord astrocytomas in adults: Our experience]. Neurochirurgie 2017; 63:297-301. [PMID: 28882604 DOI: 10.1016/j.neuchi.2017.05.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 05/08/2017] [Accepted: 05/20/2017] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Grade II intramedullary astrocytomas are rare tumors. Despite a well-defined role of adjuvant temozolomide chemotherapy for brain gliomas, the contribution of this therapy for intramedullary gliomas is not yet clearly defined. METHOD We retrospectively analyzed the data of 5 adult patients treated with temozolomide between 2008 and 2015 for a grade II intramedullary astrocytoma with progression after surgery. RESULTS Five patients from 19 to 70 years of age (median, 37years) underwent a second surgery for the progression of a grade II intramedullary astrocytoma (median progression-free survival 26months [8-90]). All tumors remained grade II. Due to a second clinical or/and radiological tumor progression, the patients were treated with temozolomide after a 37months median progression-free survival (5-66). All patients received at minimum 12 cycles (mean 14 ± 5; range 12-24) of temozolomide (150-200mg/m2/day, 5days/28days). All patients were alive after a 10-year median follow-up after diagnosis (6-13). All patients were able to walk except one, who was previously in McCormick autonomy grade IV before chemotherapy. The McCormick autonomy rating after temozolomide was stable for 4 patients and improved for 1 patient. The treatment was delayed once for hematological toxicity. CONCLUSION Temozolomide stabilized all 5 patients without any major toxicity. Based on this experience that needs to be confirmed, we consider that temozolomide should be envisaged within the therapeutic arsenal for progressive intramedullary grade II astrocytomas.
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Affiliation(s)
- E Chaskis
- Services de neurochirurgie, hôpital Erasme, route de Lennik, 808, 1070 Bruxelles, Belgique
| | - V Minichini
- Services de neurochirurgie, hôpital Erasme, route de Lennik, 808, 1070 Bruxelles, Belgique
| | - S Luce
- Services d'oncologie médicale, hôpital Erasme, route de Lennik, 808, 1070 Bruxelles, Belgique
| | - D Devriendt
- Service de radiothérapie, institut Jules-Bordet, université libre de Bruxelles, 1000 Bruxelles, Belgique
| | - S Goldman
- Service de médecine nucléaire, hôpital Erasme, route de Lennik, 808, 1070 Bruxelles, Belgique
| | - O De Witte
- Services de neurochirurgie, hôpital Erasme, route de Lennik, 808, 1070 Bruxelles, Belgique
| | - N Sadeghi
- Service de radiologie, clinique de neurochirurgie oncologique, hôpital Erasme, route de Lennik, 808, 1070 Bruxelles, Belgique
| | - F Lefranc
- Services de neurochirurgie, hôpital Erasme, route de Lennik, 808, 1070 Bruxelles, Belgique.
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8
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Hutchinson EB, Schwerin SC, Radomski KL, Sadeghi N, Jenkins J, Komlosh ME, Irfanoglu MO, Juliano SL, Pierpaoli C. Population based MRI and DTI templates of the adult ferret brain and tools for voxelwise analysis. Neuroimage 2017; 152:575-589. [PMID: 28315740 PMCID: PMC6409125 DOI: 10.1016/j.neuroimage.2017.03.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [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: 12/01/2016] [Revised: 02/27/2017] [Accepted: 03/05/2017] [Indexed: 01/26/2023] Open
Abstract
Non-invasive imaging has the potential to play a crucial role in the characterization and translation of experimental animal models to investigate human brain development and disorders, especially when employed to study animal models that more accurately represent features of human neuroanatomy. The purpose of this study was to build and make available MRI and DTI templates and analysis tools for the ferret brain as the ferret is a well-suited species for pre-clinical MRI studies with folded cortical surface, relatively high white matter volume and body dimensions that allow imaging with pre-clinical MRI scanners. Four ferret brain templates were built in this study – in-vivo MRI and DTI and ex-vivo MRI and DTI – using brain images across many ferrets and region of interest (ROI) masks corresponding to established ferret neuroanatomy were generated by semi-automatic and manual segmentation. The templates and ROI masks were used to create a web-based ferret brain viewing software for browsing the MRI and DTI volumes with annotations based on the ROI masks. A second objective of this study was to provide a careful description of the imaging methods used for acquisition, processing, registration and template building and to demonstrate several voxelwise analysis methods including Jacobian analysis of morphometry differences between the female and male brain and bias-free identification of DTI abnormalities in an injured ferret brain. The templates, tools and methodological optimization presented in this study are intended to advance non-invasive imaging approaches for human-similar animal species that will enable the use of pre-clinical MRI studies for understanding and treating brain disorders.
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Affiliation(s)
- E B Hutchinson
- Section on Quantitative Imaging and Tissue Science, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA; The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, MD, USA.
| | - S C Schwerin
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, MD, USA; Department of Anatomy, Physiology and Genetics, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - K L Radomski
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, MD, USA; Department of Anatomy, Physiology and Genetics, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - N Sadeghi
- Section on Quantitative Imaging and Tissue Science, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - J Jenkins
- Section on Quantitative Imaging and Tissue Science, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA; Dept. of Electrical Engineering and Computer Science, The Catholic University of America, Washington D.C., USA
| | - M E Komlosh
- Section on Quantitative Imaging and Tissue Science, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA; The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, MD, USA
| | - M O Irfanoglu
- Section on Quantitative Imaging and Tissue Science, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA; The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, MD, USA
| | - S L Juliano
- Department of Anatomy, Physiology and Genetics, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - C Pierpaoli
- Section on Quantitative Imaging and Tissue Science, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
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Sadeghi N, Sharifnia S, Sheikh Arabi M. A porphyrin-based metal organic framework for high rate photoreduction of CO2 to CH4 in gas phase. J CO2 UTIL 2016. [DOI: 10.1016/j.jcou.2016.10.006] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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10
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Kargar Jahromi H, Abedi H, Sadeghi N, Sepidkar A, Zar S. Chronic effects of hydro-alcoholic artemisia absinthium extract on the liver enzymes and tissue changes of adult mal rat. J Fundam and Appl Sci 2016. [DOI: 10.4314/jfas.8vi2s.85] [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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11
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Abedi HA, Jahromi HK, Sadeghi N, Amjadi SP, Jahromi ZK. Evaluating the effect of aqueous extract of the roots of native edible asparagus in Iran ( Asparagus officinalis L) on the concentration of liver factors in male rats treated with cadmium chloride. J Fundam and Appl Sci 2016. [DOI: 10.4314/jfas.v8i2s.161] [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: 11/17/2022] Open
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Khojasteh A, Sadeghi N. Application of buccal fat pad-derived stem cells in combination with autogenous iliac bone graft in the treatment of maxillomandibular atrophy: a preliminary human study. Int J Oral Maxillofac Surg 2016; 45:864-71. [PMID: 26846793 DOI: 10.1016/j.ijom.2016.01.003] [Citation(s) in RCA: 31] [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: 06/18/2015] [Revised: 10/19/2015] [Accepted: 01/07/2016] [Indexed: 01/15/2023]
Abstract
Stem cell therapy for the treatment of bone defects is an alternative or adjunct to autologous bone grafting. This study assessed the efficacy of buccal fat pad-derived stem cells (BFPSCs) with iliac bone block grafting for the treatment of extensive human alveolar ridge defects. Eight patients with extensive jaw atrophy were selected for this study. The jaws were reconstructed with non-vascularized anterior iliac crest bone blocks. Gaps between the blocks were filled with freeze-dried bone granules and covered with a collagen membrane. In the test group (n=4), these granules were seeded with BFPSCs. Cone beam computed tomography scans were used to assess the amount of new bone formed at six sites in each patient. Trephine biopsies of 2-mm were also taken from the graft site during implant placement for histomorphometric analysis. The mean bone width change at the graft site was greater in the test group than in the control group (3.94±1.62mm vs. 3.01±0.89mm). New bone formation was 65.32% in the test group versus 49.21% in the control group. The application of BFPSCs in conjunction with iliac bone block grafts may increase the amount of new bone formation and decrease secondary bone resorption in extensively atrophic jaws.
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Affiliation(s)
- A Khojasteh
- Dental Research Centre, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran; School of Medicine, University of Antwerp, Antwerp, Belgium.
| | - N Sadeghi
- Dental Research Centre, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Schuind S, De Witte O, Sadeghi N, Lefranc F. [Supraorbital approach to treat a fronto-orbital fracture with pneumocephaly, a minimal invasive technique]. Rev Med Brux 2015; 36:430-432. [PMID: 26749633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We describe a supraorbital approach through an upper eyebrow skin incision to treat a fronto-orbital fracture with pneumocephaly in a 84-year-old cardiac patient. The clinical and cosmetic results are excellent. This case is illustrated by pre- and postoperative CT-scan and MRI as well as pictures showing the minimal invasive technique.
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Moghaddam G, Sharifzadeh M, Hassanzadeh G, Khanavi M, Dolatshahi F, Sadeghi N, Oveisi MR, Hajimahmoodi M. Anti-Ulcerative Potential of Punica granatum L (Lythraceae) Hydroalcohol Fruit Peel Extract. TROP J PHARM RES 2014. [DOI: 10.4314/tjpr.v13i7.12] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [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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15
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Hajimahmoodi M, Moghaddam G, Mousavi SM, Sadeghi N, Oveisi MR, Jannat B. Total Antioxidant Activity, and Hesperidin, Diosmin, Eriocitrin and Quercetin Contents of Various Lemon Juices. TROP J PHARM RES 2014. [DOI: 10.4314/tjpr.v13i6.18] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [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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16
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Khanavi M, Moghaddam G, Oveisi MR, Sadeghi N, Jannat B, Rostami M, Saadat MA, Hajimahmoodi M. Hyperoside and anthocyanin content of ten different pomegranate cultivars. Pak J Biol Sci 2014; 16:636-41. [PMID: 24505987 DOI: 10.3923/pjbs.2013.636.641] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Pomegranate (Punica granatum L.) is native to the Mediterranean region and has been used extensively as a medicine in many counties. Hyperoside is known as an important flavonoid with antioxidant activity and anti hypertension effect. Anthocyanins are the active component in several herbal medicines, thus accurate measurement of hyperoside and anthocyanins, along with their degradation indices, is very useful to food technologists and horticulturists. The aim of the current study was to determine the antioxidant capacity as hyperoside and anthocyanin content of ten different Iranian pomegranate cultivars. Spectroscopic analyses of the pomegranate showed Black peel cultivar had the highest hyperoside content (25.93 +/- 2.87, 620.41 +/- 30.32 mg/100 g) in its pulp and peel, respectively. Based on this study, the amounts of anthocyanin in pulp ranged between 1.56 +/- 0.05 and 3.89 +/- 0.07 mg g(-1) which related to Sweet white peel and Sweet alac cultivars, respectively. More over the highest and also the lowest peel anthocyanin contents related to these cultivars. The results revealed that the hyperoside and also anthocyanin peel content of each variety is higher than its pulp content. In addition the potency of black peel (Medicinal pomegranate) and Sweet alac cultivars for prevention of coronary heart disease and hypertension were presented.
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Affiliation(s)
- M Khanavi
- Department of Pharmacognosy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - G Moghaddam
- Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - M R Oveisi
- Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - N Sadeghi
- Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - B Jannat
- Ministry of Health and Medical Education, Research center, Tehran, Iran
| | - M Rostami
- Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - M A Saadat
- Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - M Hajimahmoodi
- Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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Barooti E, Karimi-Zarchi M, Sadeghi N, Teimoori S, Chiti Z. Age of menarche as a risk factor for gynecological cancer in Iranian women and review of the literature. CLIN EXP OBSTET GYN 2014. [DOI: 10.12891/ceog15662014] [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: 11/01/2022]
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Barooti E, Karimi-Zarchi M, Sadeghi N, Teimoori S, Chiti Z. Age of menarche as a risk factor for gynecological cancer in Iranian women and review of the literature. CLIN EXP OBSTET GYN 2014; 41:48-51. [PMID: 24707683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND This study analyzed the age of menarche in different regions of Iran with a review of previous studies and examined the changes of menarche age over the past years. MATERIALS AND METHODS A descriptive and cross-sectional study which was conducted in 11 different provinces of Iran with a sample size of 26,831. The year of birth and age of menarche in the population obtained through health records which were available in the health centers collected and also questioning the subjects under investigation. RESULTS The highest average age of 14.6 years obtained from Kermanshah province and the lowest was from Kerman with 12.98 years. The lowest average was observed with age group under 30 (13.22) and the highest age of menarche (13.53) belonged to the 30 to 40 year age group. The average age of menarche in this study was 13.24 years. DISCUSSION A declining trend of about two to four months for each ten years has been observed in girls born in 1920s to 1940s and then an upward trend of about nine months for ten years in subjects born in 1950s and 1960s. The stressful condition of war and poor economic and social conditions of Iranian people can justify this upward leap. However in women under 30 years of age, the menarche age showed a rapid declining trend to 13.22 years. CONCLUSION Obtaining accurate information and knowing all the factors affecting this issue can be very useful in planning the public health in women and health educational programs.
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Ghannadi A, Bagherinejad MR, Abedi D, Jalali M, Absalan B, Sadeghi N. Antibacterial activity and composition of essential oils from Pelargonium graveolens L'Her and Vitex agnus-castus L. Iran J Microbiol 2012. [PMID: 23205247 PMCID: PMC3507305] [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] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND AND OBJECTIVES Essential oils are volatile compounds that have been used since Middle Ages as antimicrobial, anti-inflammatory, sedative, local anesthetic and food flavoring agents. In the current study, essential oils of Pelargonium graveolens L'Her and Vitex agnus-castus L. were analyzed for their antibacterial activities. MATERIALS AND METHODS The chemical compositions of essential oils were characterized by GC-MS. Disc diffusion method was used to study antimicrobial activity. RESULTS AND CONCLUSION Inhibition zones showed that the essential oils of the two plants were active against all of the studied bacteria (except Listeria monocytogenes). The susceptibility of the strains changed with the dilution of essential oils in DMSO. The pure essential oils showed the most extensive inhibition zones and they were very effective antimicrobial compounds compared to chloramphenicol and amoxicillin. The most susceptible strain against these two essential oils was Staphylococcus aureus. It seems that β-citronellol is a prominent part of P. graveolens volatile oil and caryophyllene oxide is a famous and important part of V. agnus-castus volatile oil and their probable synergistic effect with other constituents are responsible for the antibacterial effects of these oils. However further studies must be performed to confirm the safety of these oils for use as antimicrobial agents and natural preservatives in different products.
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Affiliation(s)
- A Ghannadi
- Department of Pharmacognosy, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran,Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - MR Bagherinejad
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran,Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, Iran, Corresponding author: Dr. Mohammad Reza Bagherinejad, Address: Department of Pharmaceutical Biotechnology, School of Pharmacy and Pharmaceutical Sciences and Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan 8174673461, Iran. Tel: +98-311-792 2584. Fax: +98-311-668 0011. E-mail:
| | - D Abedi
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
| | - M Jalali
- Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - B Absalan
- Department of Pharmacognosy, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
| | - N Sadeghi
- Department of Pharmacognosy, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
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Golbabaei F, Seyedsomea M, Ghahri A, Shirkhanloo H, Khadem M, Hassani H, Sadeghi N, Dinari B. Assessment of welders exposure to carcinogen metals from manual metal arc welding in gas transmission pipelines, iran. Iran J Public Health 2012; 41:61-70. [PMID: 23113226 PMCID: PMC3469034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2012] [Accepted: 06/25/2012] [Indexed: 11/14/2022]
Abstract
BACKGROUND Welding can produce dangerous fumes containing various metals especially carcinogenic ones. Occupational exposure to welding fumes is associated with lung cancer. Therefore, welders in Gas Transmission Pipelines are known as a high-risk group. This study was designed to determinate the amounts of metals Cr, Ni, and Cd in breathing zone and urine of welders and to assess the possibility of introducing urinary metals as a biomarker due to occupational exposure. METHODS In this cross sectional study, 94 individuals from Gas Transmission Pipelines welders, Iran, Borujen in 2011 were selected and classified into 3 groups including Welders, Back Welders and Assistances. The sampling procedures were performed according to NIOSH 7300 for total chromium, nickel, and cadmium and NIOSH 7600 for Cr+6. For all participants urine samples were collected during the entire work shift and metals in urine were determined according to NIOSH 8310. RESULTS Back Welders and Assistances groups had maximum and minimum exposure to total fume and its elements, respectively. In addition, results showed that there are significant differences (P<0.05) between Welders and Back Welders with Assistances group in exposure with total fume and elements except Ni. Urinary concentrations of three metals including Cr, Cd and Ni among all welders were about 4.5, 12 and 14-fold greater than those detected in controls, respectively. Weak correlations were found between airborne and urinary metals concentrations (R2: Cr=0.45, Cd=0.298, Ni=0.362). CONCLUSION Urinary metals concentrations could not be considerate as a biomarker for welders' exposure assessment.
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Affiliation(s)
- F Golbabaei
- Dept. of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - M Seyedsomea
- Dept. of HSE, science and research branch, Islamic Azad University, Tehran, Iran
| | - A Ghahri
- Dept. of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - H Shirkhanloo
- Iranian Petroleum Industry Health Research Institute (IPIHRI), Tehran, Iran
| | - M Khadem
- Dept. of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - H Hassani
- Dept. of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - N Sadeghi
- Dept. of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - B Dinari
- HSEQ Department, Iranian Gas engineering and development Company, Tehran, Iran
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Kates M, Badalato GM, Sadeghi N, Pitman MS, McKiernan JM. Increased risk of overall and cardiovascular mortality after radical nephrectomy for renal cell carcinoma less than or equal to 2 cm. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.4589] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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22
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Russo LM, Sadeghi N, Bate K, Comper WD, Skog J, Petrylak DP, McKiernan JM. Use of urinary microvesicles for noninvasive mRNA expression analysis in patients with prostate cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e15033] [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: 11/20/2022] Open
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23
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Sadeghi N, Abbruzzese JL, Yeung SJ, Hassan M, Li D. Effect of metformin on survival of diabetic patients with pancreatic adenocarcinoma. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.4063] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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24
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Sadeghi N, Badalato GM, Hruby GW, Grann VR, McKiernan JM. Does absolute neutrophil count predict adverse tumor grade in African American men with prostate cancer? J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.4616] [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: 11/20/2022] Open
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25
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Badalato GM, Hruby GW, Kates M, Sadeghi N, Matulay JT, McKiernan JM. Maximizing intravesical therapy options: Is there an advantage to the administration of perioperative mitomycin C prior to an induction course of BCG? J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e15018] [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: 11/20/2022] Open
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26
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Barooti E, Sadeghi N, Karimi-Zarchi M, Soltani HR. Rate of use of contraceptive methods and risk factors in Tehran, the capital of Iran, in 2010 compared to other cities and regions. CLIN EXP OBSTET GYN 2011; 38:408-411. [PMID: 22268287] [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: 05/31/2023]
Abstract
BACKGROUND Unwanted pregnancies and deaths from abortion cost the lives of 500 women daily. This study was designed to determine the rate of use of contraceptive methods and the risks. MATERIAL AND METHODS This cross-sectional study was conducted in 2010 in Tehran, Iran. Total sample size was 304 participants who all filled out a questionnaire which had two parts. Data were analyzed by SPSS. FINDINGS The results showed that age (p = 0.003), employment status (p = 0.001), number of children (p = 0.001), and marriage (p = 0.01), had a significant relation with type of contraceptive method while, education did not correlate with contraceptive methods. DISCUSSION New and often younger couples with no experience about different contraceptive methods may tend to use natural methods because of their lack of knowledge of other techniques. Use of modern contraceptives early in marriage or even before marriage could be a good strategy.
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Affiliation(s)
- E Barooti
- Functional Gynecology, Taleghani Hospital, Tehran, Iran
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Sadeghi E, Kadivar MR, Ghadimi moghadam AK, Pooladfar GR, Sadeghi N. Chronic recurrent multifocal osteomyelitis: a case report. Iran Red Crescent Med J 2011; 13:47-51. [PMID: 22946018 PMCID: PMC3407585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2010] [Accepted: 07/19/2010] [Indexed: 11/30/2022]
Abstract
Chronic recurrent multifocal osteomyelitis (CRMO) is a rare inflammatory bone disease. It is a diagnosis of exclusion based on the clinical, radiological and pathological criteria. The awareness of the corresponding feature can help avoid of unnecessary diagnostic procedures and prolonged antibiotic therapy. We present a case of 4.5 year old girl, diagnosed with CRMO who were followed for 6 months as a case of chronic bacterial osteomyelitis and received long course of antibiotic therapy.
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Affiliation(s)
- E Sadeghi
- Department of Pediatrics, Infectious Disease, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran,Correspondence: Ebrahim Sadeghi, Department of Pediatrics,Infectious Disease, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran. Tel.: +98-711-6474303, Fax: +98-711-6474304, E-mail:
| | - M R Kadivar
- Professor Alborzi Clinical Microbiology Research Center, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - A K Ghadimi moghadam
- Department of Pediatrics, Infectious Disease, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Gh R Pooladfar
- Department of Pediatrics, Infectious Disease, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - N Sadeghi
- Department of Pediatrics, Urmia University of Medical Sciences, Urmia, Iran
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Barooti E, Sadeghi N, Karimi-Zarchi M, Soltani HR. New results regarding trends in Iranian women's health and a comparison with WHO data. CLIN EXP OBSTET GYN 2011; 38:390-393. [PMID: 22268282] [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: 05/31/2023]
Abstract
Half of the world's population consists of women, who play important roles in cultural formation and education, maintain and promote households and their health, and consequently affect the community. In a general sense, women's health may be an important cornerstone for the formation of a healthy community. In developing countries, 67% of women work in the agriculture sector and produce 55% of the food products throughout the world. In East Asian countries, which have the highest level of cloth and furniture export, 74% of workers are women. Due to these considerations, we assessed women's health indicators in Iran. We reviewed health information from national health reports, including two national health surveys conducted in 1991 and 2009 with a sample size of 1/1,000 of the Iranian population, the 2000 Iran Demographic and Health Survey, and all published indices that were calculated in 2006 or later. The most important finding was that the maternal mortality rate decreased from 54 per 100,000 live births in 1991 to 37.4 per 100,000 live births in 1997. It decreased further to 24.7 per 100,000 live births in 2006. The Millennium Development Goal is 18-22 per 100,000 live births in 2015.
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Affiliation(s)
- E Barooti
- Functional Gynecology Department, Shahid Beheshti University MC, Tehran, Iran
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Sadeghi N, Foster N, Wang A, Minoshima S, Lieberman A, Tasdizen T. IC‐P1‐051: Automatic diagnostic classification of dementia with FDG‐PET using a spatial – decision tree approach. Alzheimers Dement 2008. [DOI: 10.1016/j.jalz.2008.05.061] [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: 11/30/2022]
Affiliation(s)
- N. Sadeghi
- School of Computing, University of UtahSalt Lake CityUTUSA
| | - N.L. Foster
- Center for Alzheimer's Care, Imaging and Research, University of UtahSalt Lake CityUTUSA
| | - A.Y. Wang
- Center for Alzheimer's Care, Imaging and Research, University of UtahSalt Lake CityUTUSA
| | - S. Minoshima
- School of Medicine, University of WashingtonSeattleWAUSA
| | - A.P. Lieberman
- Department of PathologyUniversity of MichiganAnn ArborMIUSA
| | - T. Tasdizen
- School of Computing, University of UtahSalt Lake CityUTUSA
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Sadeghi N, Foster N, Wang A, Minoshima S, Lieberman A, Tolga T. P2‐068: Automatic diagnostic classification of dementia with FDG‐PET using a spatial decision tree approach. Alzheimers Dement 2008. [DOI: 10.1016/j.jalz.2008.05.1141] [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)
- N. Sadeghi
- School of Computing, University of UtahSalt Lake CityUTUSA
| | - N.L. Foster
- Center for Alzheimer's Care, Imaging and ResearchUniversity of UtahSalt Lake CityUTUSA
| | - A.Y. Wang
- Center for Alzheimer's Care, Imaging and ResearchUniversity of UtahSalt Lake CityUTUSA
| | - S. Minoshima
- School of Medicine, University of WashingtonSeattleWAUSA
| | - A.P. Lieberman
- Department of PathologyUniversity of MichiganAnn ArborMIUSA
| | - T. Tolga
- School of Computing, University of UtahSalt Lake CityUTUSA
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Hajimahmoodi M, Oveisi MR, Sadeghi N, Jannat B, Hadjibabaie M, Farahani E, Akrami MR, Namdar R. Antioxidant properties of peel and pulp hydro extract in ten Persian pomegranate cultivars. Pak J Biol Sci 2008; 11:1600-1604. [PMID: 18819648 DOI: 10.3923/pjbs.2008.1600.1604] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [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: 05/26/2023]
Abstract
This study compares the antioxidant activity of ten different pomegranate cultivars grown in Iran using the ferric reducing power assay (FRAP assay), which is based on the reduction of a ferric-tripyridyl triazine complex to its ferrous, colored form in the presence of antioxidants. Aqueous solutions of known Fe(+2) concentration, in the range of 100-1000 micromol L(-1) were used for calibration. The results showed that among pulp and peel fractions the sour alac and sweet white peel cultivars had more FRAP value respectively. The pomegranate peel extract had markedly higher antioxidant capacity than the pulp extract. The peel extract of sweet white peel cultivar appeared to have more potential as a health supplement rich in natural antioxidants compared to the pulp and peel extracts of other pomegranate cultivars.
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Affiliation(s)
- M Hajimahmoodi
- Department of Drug and Food Control, Faculty of Pharmacy, Medical Sciences/University of Tehran, Postal Box 14155/6451, Tehran, Iran
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Maris C, Rorive S, Sandras F, D'Haene N, Sadeghi N, Bièche I, Vidaud M, Decaestecker C, Salmon I. Tenascin-C expression relates to clinicopathological features in pilocytic and diffuse astrocytomas. Neuropathol Appl Neurobiol 2008; 34:316-29. [DOI: 10.1111/j.1365-2990.2007.00898.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Hajimahmoo M, Sadeghi N, Jannat B, Oveisi M, Madani S, Kiayi M, Akrami M, Ranjbar A. Antioxidant Activity, Reducing Power and Total Phenolic Content of Iranian Olive Cultivar. ACTA ACUST UNITED AC 2008. [DOI: 10.3923/jbs.2008.779.783] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Sadeghi N, D'Haene N, Decaestecker C, Levivier M, Metens T, Maris C, Wikler D, Baleriaux D, Salmon I, Goldman S. Apparent diffusion coefficient and cerebral blood volume in brain gliomas: relation to tumor cell density and tumor microvessel density based on stereotactic biopsies. AJNR Am J Neuroradiol 2008; 29:476-82. [PMID: 18079184 DOI: 10.3174/ajnr.a0851] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE MR imaging-based apparent diffusion coefficient (ADC) and regional cerebral blood volume (rCBV) measurements have been related respectively to both cell and microvessel density in brain tumors. However, because of the high degree of heterogeneity in gliomas, a direct correlation between these MR imaging-based measurements and histopathologic features is required. The purpose of this study was to correlate regionally ADC and rCBV values with both cell and microvessel density in gliomas, by using coregistered MR imaging and stereotactic biopsies. MATERIALS AND METHODS Eighteen patients (9 men, 9 women; age range, 19-78 years) with gliomas underwent diffusion-weighted and dynamic susceptibility contrast-enhanced MR imaging before biopsy. Eighty-one biopsy samples were obtained and categorized as peritumoral, infiltrated tissue, or bulk tumor, with quantification of cell and microvessel density. ADC and rCBV values were measured at biopsy sites and were normalized to contralateral white matter on corresponding maps coregistered with a 3D MR imaging dataset. ADC and rCBV ratios were compared with quantitative histologic features by using the Spearman correlation test. RESULTS The highest correlations were found within bulk tumor samples between rCBV and cell density (r=0.57, P < .001) and rCBV and microvessel density (r=0.46, P < .01). An inverse correlation was found between ADC and microvessel density within bulk tumor (r=-0.36, P < .05), whereas no significant correlation was found between ADC and cell density. CONCLUSION rCBV regionally correlates with both cell and microvessel density within gliomas, whereas no regional correlation was found between ADC and cell density.
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Lubicz B, Levivier M, François O, Thoma P, Sadeghi N, Collignon L, Balériaux D. Sixty-four-row multisection CT angiography for detection and evaluation of ruptured intracranial aneurysms: interobserver and intertechnique reproducibility. AJNR Am J Neuroradiol 2007; 28:1949-55. [PMID: 17898200 PMCID: PMC8134231 DOI: 10.3174/ajnr.a0699] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.5] [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: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The purpose of this work was to assess intertechnique and interobserver reproducibility of 64-row multisection CT angiography (CTA) used to detect and evaluate intracranial aneurysms. MATERIALS AND METHODS From October 2005 to November 2006, 54 consecutive patients with nontraumatic subarachnoid hemorrhage (SAH) underwent both CTA and digital substraction angiography (DSA). Four radiologists independently reviewed CT images, and 2 other radiologists reviewed DSA images. Aneurysm diameter (D), neck width (N), and the presence of a branch arising from the sac were assessed. RESULTS DSA revealed 67 aneurysms in 48 patients and no aneurysm in 6 patients. Mean sensitivity and specificity of CTA for the detection of intracranial aneurysms were, respectively, 94% and 90.2%. For aneurysms less than 3 mm, CTA had a mean sensitivity of 70.4%. Intertechnique and interobserver agreements were good for the detection of aneurysms (mean kappa = 0.673 and 0.732, respectively) and for the measurement of their necks (mean kappa = 0.753 and 0.779, respectively). Intertechnique and interobserver agreements were excellent for the measurement of aneurysm diameters (mean kappa = 0.847 and 0.876, respectively). In addition, CTA was accurate in determining the N/D ratio of aneurysms and adjacent arterial branches. However, the N/D ratio was overestimated by all of the readers at CTA. CONCLUSION Sixty-four-row multisection CTA is an imaging method with a good interobserver reproducibility and a high sensitivity and specificity for the detection and the morphologic evaluation of ruptured intracranial aneurysms. It may be used as an alternative to DSA as a first-intention imaging technique in patients with SAH.
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Affiliation(s)
- B Lubicz
- Department of Neuroradiology, Erasme University Hospital, Brussels, Belgium.
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Lubicz B, Levivier M, Sadeghi N, Emonts P, Balériaux D. Immediate intracranial aneurysm occlusion after embolization with detachable coils: a comparison between MR angiography and intra-arterial digital subtraction angiography. J Neuroradiol 2007; 34:190-7. [PMID: 17582496 DOI: 10.1016/j.neurad.2007.05.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [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: 10/28/2022]
Abstract
BACKGROUND AND PURPOSE To prospectively compare the effectiveness of time-of-flight (TOF) and contrast-enhanced (CE) MR angiography (MRA) with that of digital subtraction angiography (DSA) to assess immediate intracranial aneurysm occlusion after selective embolization. METHODS From August 2006 to March 2007, 33 consecutive patients with 40 aneurysms were included. Thirty aneurysms were treated by endosaccular coils (group 1). Ten aneurysms were treated by stent placement and subsequent endosaccular coils (group 2). All patients underwent MRA within 24 h after treatment. One senior and one fellow radiologist independently reviewed the MR images, and another senior radiologist reviewed the DSA images. RESULTS DSA showed 22 complete occlusions, ten residual necks, and eight residual aneurysms. For residual neck detection, there was no difference between TOF-MRA (sensitivity, 80%-80%; specificity, 93.8%-100%, according to both readers) and CE-MRA (sensitivity, 80%-80%; specificity, 100%). For residual aneurysm detection, there was a significant difference between TOF-MRA (sensitivity, 50%-62.5%; specificity, 100%) and CE-MRA (sensitivity and specificity, 100%, according to both readers). In group 2, a residual aneurysm was missed by both readers with TOF-MRA in the same 3 aneurysms. Moreover, both readers judged CE-MRA better than TOF-MRA to assess parent-artery patency in group 2. Interobserver agreement was excellent for TOF-MRA and CE-MRA (kappa=0.9 and 1, respectively). CONCLUSIONS In our study, both TOF-MRA and CE-MRA had high and comparable sensitivity and specificity for the assessment of immediate aneurysm occlusion after selective embolization, except when a stent-assisted technique was used. In such cases, CE-MRA was superior to TOF-MRA to evaluate aneurysm occlusion and parent-artery patency.
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Affiliation(s)
- B Lubicz
- Department of Neuroradiology, Erasme University Hospital, Brussels, Belgium.
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David P, Sadeghi N, Neugroschel C, Jissendi P, Lubicz B, Delpierre I, Massager N, Levivier M, Balériaux D. Information on heavy equipments and facilities in Belgium: gamma-knife. JBR-BTR 2007; 90:252-257. [PMID: 17966240] [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] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
PURPOSE To explain the principles and indications of gamma knife radiosurgery and to illustrate the correlated neuroimaging features. METHODS AND MATERIAL Between December 1999 and July 2007, 1620 patients were treated by GK for a large variety of indications (metastasis 26%, vascular malformations 7%, trigeminal neuralgia 14%, pituitary adenoma 3%, primary CNS tumour 8%, other tumours 6%, vestibular schwannoma 19%, meningioma 17%, functional disorders <1%). The patients benefited from MRI follow-ups. RESULTS MRI is the imaging technique of choice for Gamma knife radiosurgery (GKRS) in almost all indications. Computed Tomography, Digital Subtraction Angiography and Positron Emission Tomography have an additional role in some indications. Significant MRI data is illustrated in most indications. Evaluation of the treatment is mainly performed using MRI follow-up studies. The main features of these MRI follow-ups are described. Stabilisation or shrinking of the lesions volumes was generally observed. T2 relaxation times were also modified in and around the treated target areas, in patients responding to treatment and without any symptomatic complications. Modifications in contrast uptake were also observed in those patients. A few patients presented symptomatic complications associated with T2 signal anomalies. The interpretation of those modifications is discussed. CONCLUSION MRI is the method of choice for GKRS planning in most indications. Imaging changes after radiosurgery provide the best quality control available to assess the response to radiosurgical treatment and to identify and monitor potential complications.
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Affiliation(s)
- P David
- Clinique de Neuroradiologie, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium
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Sadeghi N, Salmon I, Decaestecker C, Levivier M, Metens T, Wikler D, Denolin V, Rorive S, Massager N, Baleriaux D, Goldman S. Stereotactic comparison among cerebral blood volume, methionine uptake, and histopathology in brain glioma. AJNR Am J Neuroradiol 2007; 28:455-61. [PMID: 17353312 PMCID: PMC7977817] [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: 05/14/2023]
Abstract
BACKGROUND AND PURPOSE Vascularity, metabolism, and histologic grade are related in gliomas but the exact determinants of these relationships are not fully defined. We used image coregistration and stereotactic biopsies to regionally compare cerebral blood volume (CBV) and (11)C-methionine (MET) uptake measurements in brain gliomas and to assess their relationship by histopathologic examination. MATERIALS AND METHODS Fourteen patients with brain gliomas underwent MR imaging, including dynamic susceptibility contrast-enhanced MR and positron-emission tomography (PET) using MET acquired in identical stereotactic conditions before biopsy. MR-based CBV maps were calculated and both CBV maps and PET images were coregistered to anatomic images. Sixty-five biopsy samples were obtained on trajectories targeted toward high MET uptake area. The following histopathologic features were semiquantified in each sample: mitotic activity, endothelial proliferation, cellular pleomorphism, and tumor necrosis. CBV and MET uptake values were measured in the biopsy area and normalized to contralateral white matter. CBV ratios were compared with MET uptake ratios, and both measurements were compared with histologic features of each sample. RESULTS CBV ratios ranged from 0.08 to 10.24 (median = 1.73), and MET uptake ratios ranged from 0.30 to 4.91 (median = 1.67). There was a positive correlation between CBV ratios and MET uptake ratios (r = 0.65, P < .001). Both CBV and MET uptake ratios were found to be significantly related to endothelial proliferation and mitotic activity (P < .01). CONCLUSION Within glial tumors, there is a local relationship between CBV and MET uptake measurements. Both provide indices of focal malignant activity.
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Affiliation(s)
- N Sadeghi
- Department of Radiology, Hôpital Erasme, Brussels, Belgium.
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Gultasli N, Jissendi P, Graca J, Sadeghi N, Salmon I, Baleriaux D. P-22 - Oligodendrogliome anaplasique multifocal synchrone: séméiologie par IRM multimodalitaire-diffusion, perfusion, spectroscopie. J Neuroradiol 2006. [DOI: 10.1016/s0150-9861(06)77205-4] [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: 11/27/2022]
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Balériaux D, David P, Sadeghi N, Neugroschl C, Jissendi P, Metens T. [Role of new MRI techniques in neuroradiologic practice]. Rev Med Brux 2003; 24:A279-86. [PMID: 14606291] [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] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
Abstract
Magnetic Resonance Imaging (MRI) has been introduced in clinical practice in the mid-eighties. However, MRI is an ever evolving imaging technique with constant new developments allowing broadening of clinical applications. In particular, angio-MRI involves many different acquisition techniques that will guide their clinical use. On the other hand, clinical applications of the following techniques are briefly discussed: diffusion, perfusion, tractography and diffusion tensor imaging, spectroscopy and functional imaging.
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Affiliation(s)
- D Balériaux
- Clinique de Neuroradiologie, Hôpital Erasme, U.L.B
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Struyven J, Avni F, Balériaux D, Cassart M, David P, Gevenois PA, Golzarian J, Laureys M, Madani A, Matos C, Metens T, Scillia P, Sadeghi N, Stallenberg B, Van Gansbeke D, Zalcman M. [The medical imaging and radiology department]. Rev Med Brux 2003; 23 Suppl 2:79-84. [PMID: 12584918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
Technological developments arising from research have affected the whole wide spectrum of medical endeavor and have made a very significant impact on clinical practice and especially on imaging sciences. Ultrasonography brought spectacular advances, but CT and MRI became important landmark techniques. A further important development, which greatly increased the involvement of radiologists in direct patient management, was the growth of interventional and therapeutic techniques, called interventional radiology. Some statistics: approximately 155,000 patients per year including 19,000 CT Scans, 10,000 MRI exams, 21,000 ultrasound examinations and 1,000 therapeutic procedures. Some research activities: CT quantification of pulmonary emphysema, respiratory mechanics, MR and CT angiography, antenatal diagnosis of congenital and genetic diseases of the fetus, quantification of portal haemodynamics, MR imaging of bile and pancreatic ducts, morphologic and functional imaging of the brain, radiology of bone trauma, MR characterization in hepatic lesions.
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Neugroschl C, David P, Sadeghi N, Soebert A, Pirotte B, Rorive S, Balériaux D. Unusual CT features of dermoid cyst in the posterior fossa. Eur Radiol 2002; 12:2726-9. [PMID: 12386764 DOI: 10.1007/s00330-002-1359-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2001] [Revised: 12/27/2001] [Accepted: 01/04/2002] [Indexed: 11/26/2022]
Abstract
A dermoid cyst of the posterior fossa in a 73-year-old man is reported. The presentation of the cyst was unusual because of the age of the patient, the spontaneously hyperdense aspect of the mass on CT, the partial rim enhancement of the lesion, and the presence of perilesional edema. On pathologic examination, the cyst contained small amount of fat, hairs, necrosis, and small areas of hemorrhage. The amount of hemorrhage found could not explain the spontaneous hyperdensity of the lesion found on CT. The hyperdensity may be related to high protein content of the lesion.
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Affiliation(s)
- C Neugroschl
- Department of Neuroradiology, Hôpital Erasme, Université Libre de Bruxelles, 808 Route de Lennik, 1070 Brussels, Belgium.
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Bussière T, Friend PD, Sadeghi N, Wicinski B, Lin GI, Bouras C, Giannakopoulos P, Robakis NK, Morrison JH, Perl DP, Hof PR. Stereologic assessment of the total cortical volume occupied by amyloid deposits and its relationship with cognitive status in aging and Alzheimer's disease. Neuroscience 2002; 112:75-91. [PMID: 12044473 DOI: 10.1016/s0306-4522(02)00056-8] [Citation(s) in RCA: 84] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Although the presence of amyloid deposits is required to establish the neuropathologic diagnosis of Alzheimer's disease, from a clinical point of view, a direct contribution of these cerebral lesions to cognitive deficits is still controversial. The development and standardization of quantitative and accurate biochemical and neuropathologic methods may be critical to improve the postmortem diagnosis and clinicopathologic correlations. Here, we used a point counting method, based on the Cavalieri principle, to estimate the volume occupied by amyloid deposits in a discrete region of the prefrontal cortex and in the hippocampal formation, in brains from patients with cognitive status ranging from normal to severely demented. We demonstrate that the assessment of the total volume occupied by the amyloid deposits in the entorhinal cortex and subiculum can be considered an effective predictor of dementia severity. We also reveal the existence of a high degree of regional and interindividual heterogeneity in amyloid distribution and relative volume. Our data suggest that even though a correlation was observed between the stereologic point counting method and a non-stereologic random field thresholding approach, in most cases non-stereologic methods may not provide adequate samples of the tissue and may lead to unreliable estimates of amyloid burden due to the inhomogeneous distribution of amyloid in the cerebral cortex and the large variability among brains.
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Affiliation(s)
- T Bussière
- Kastor Neurobiology of Aging Laboratories and Fishberg Research Center for Neurobiology, Box 1639, Mount Sinai School of Medicine, New York, NY 10029, USA
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Bachmann R, Ehlich R, Ottinger C, Rox T, Sadeghi N. Beam Study of the Luminescent E−E Energy Transfer Reaction Kr(3P2) + N2 → Kr + N2(B 3Πg) at High Resolution and Variable Collision Energy. J Phys Chem A 2002. [DOI: 10.1021/jp0146723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- R. Bachmann
- Max-Planck-Institut für Strömungsforschung, Bunsenstrasse 10, 37073 Göttingen, Germany
| | - R. Ehlich
- Max-Planck-Institut für Strömungsforschung, Bunsenstrasse 10, 37073 Göttingen, Germany
| | - Ch. Ottinger
- Max-Planck-Institut für Strömungsforschung, Bunsenstrasse 10, 37073 Göttingen, Germany
| | - T. Rox
- Max-Planck-Institut für Strömungsforschung, Bunsenstrasse 10, 37073 Göttingen, Germany
| | - N. Sadeghi
- Laboratoire de Spectrométrie Physique, Université Joseph Fourier de Grenoble I and CNRS (UMR 5588), B.P. 87, 38402 Saint-Martin-d' Hères Cedex, France
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Sadeghi N, Setser DW, Touzeau M. Reactions of Metastable Argon Atoms with Molecular Hydrogen at 300 and 80 K: Origin of the Ultraviolet Chemiluminescence. J Phys Chem A 2002. [DOI: 10.1021/jp020014m] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- N. Sadeghi
- Laboratoire de Spectrométrie Physique (UMR CNRS 5588), Université Joseph Fourier-Grenoble I. BP 87, 38402 St. Martin d'Héres Cedex, France
| | - D. W. Setser
- Laboratoire de Spectrométrie Physique (UMR CNRS 5588), Université Joseph Fourier-Grenoble I. BP 87, 38402 St. Martin d'Héres Cedex, France
| | - M. Touzeau
- Laboratoire de Spectrométrie Physique (UMR CNRS 5588), Université Joseph Fourier-Grenoble I. BP 87, 38402 St. Martin d'Héres Cedex, France
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Affiliation(s)
- A Yoskovitch
- Department of Otolaryngology-Head and Neck Surgery, Sir Mortimer B. Davis-Jewish General Hospital, 3755 Cote Sainte Catherine Road, Suite E-209, Montreal, Quebec, Canada H3T 1E2
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Sadeghi N, Rütz ML, Menees TM. Thermal blockage of viruslike particle formation for the yeast retrotransposon Ty3 reveals differences in the cellular stress response. Arch Virol 2001; 146:1919-34. [PMID: 11722014 DOI: 10.1007/s007050170042] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [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: 11/24/2022]
Abstract
The long terminal repeat (LTR) retrotransposons of the yeast Saccharomyces cerevisiae are similar in their structures and life cycles to animal retroviruses. The yeast LTR retrotransposon Ty3 does not transpose under conditions where the cellular stress response is activated. During stress, mature Ty3 proteins, indicative of the formation of intracellular Ty3 viruslike particles (VLPs), do not accumulate. In order to examine the role of stress proteins in Ty3 transposition, a sensitive genetic assay was developed to measure VLP formation. The assay employs a Ty3 element marked with a mutant allele of the yeast HIS3 gene (his3AI). To create a stable His+ phenotype, Ty3 must form VLPs, reverse transcribe Ty3 RNA into cDNA, and then insert the cDNA into either chromosomal or plasmid DNA. Using this assay, thermal inhibition of Ty3 transposition was evident at temperatures as low as 30 degrees C. The level of production of mature Ty3 proteins parallels the transposition frequency. Although overexpression of the yeast UBP3 gene allows VLPs to form and transposition to occur in the constitutively stressed ssa1 ssa2 strain, it does not alleviate the inhibition of these processes during stress induced by heat or ethanol. This suggests that the genetic and physical modes of stress response induction are not equivalent.
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Affiliation(s)
- N Sadeghi
- School of Biological Sciences, University of Missouri, Kansas City, USA
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Sadeghi N, Setser DW, Francis A, Czarnetzki U, Döbele HF. Quenching rate constants for reactions of Ar(4p′[1/2]0, 4p[1/2]0, 4p[3/2]2, and 4p[5/2]2) atoms with 22 reagent gases. J Chem Phys 2001. [DOI: 10.1063/1.1388037] [Citation(s) in RCA: 94] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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