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Modarressi SM, Koolivand Z, Akbari M. Enhancing hyaluronidase enzyme activity: Insights from advancement in bovine and ovine testicular hyaluronidase purification. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1234:124031. [PMID: 38330521 DOI: 10.1016/j.jchromb.2024.124031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/21/2024] [Accepted: 01/23/2024] [Indexed: 02/10/2024]
Abstract
This essay investigates the use of an affinity resin named Capto lentil lectin for the purification of bovine and ovine testicular hyaluronidase. Hyaluronidase, an enzyme that degrades hyaluronic acid, is used widely in medical fields like dermatology, orthopedics, and ophthalmology. The research highlights the importance of optimizing the purification process to increase enzyme activity and purity. A new purification method is proposed, which begins with ammonium sulfate precipitation, followed by Blue Sepharose and Capto Lentil Lectin chromatography. This novel approach significantly increases the yield, purity, and activity of the enzyme. This study paves the way for further research into improving the purification process. The study further discusses challenges in identifying hyaluronidase bands using SDS-PAGE and highlights the necessity of using Western blotting for precise results.
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Affiliation(s)
| | | | - Mojdeh Akbari
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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Khanyile BS, Numan N, Simo A, Nkosi M, Mtshali CB, Khumalo Z, Madiba IG, Mabakachaba B, Swart H, Coetsee-Hugo E, Duvenhage MM, Lee E, Henini M, Gibaud A, Chaker M, Rezaee P, Lethole N, Akbari M, Morad R, Maaza M. Towards Room Temperature Thermochromic Coatings with controllable NIR-IR modulation for solar heat management & smart windows applications. Sci Rep 2024; 14:2818. [PMID: 38307893 PMCID: PMC10837131 DOI: 10.1038/s41598-024-52021-7] [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] [Received: 09/03/2023] [Accepted: 01/12/2024] [Indexed: 02/04/2024] Open
Abstract
Solar heat management & green air-conditioning are among the major technologies that could mitigate heat islands phenomenon while minimizing significantly the CO2 global foot-print within the building & automotive sectors. Chromogenic materials in general, and thermochromic smart coatings especially are promising candidates that consent a noteworthy dynamic solar radiation Infrared (NIR-IR) regulation and hence an efficient solar heat management especially with the expected increase of the global seasonal temperature. Within this contribution, two major challenging bottlenecks in vanadium oxide based smart coatings were addressed. It is validated for the first time that the NIR-IR modulation of the optical transmission (∆TTRANS = T(T〈TMIT) - T(T〉TMIT) of Vanadium oxide based smart coatings can be controlled & tuned. This upmost challenging bottle-neck controllability/tunability is confirmed via a genuine approach alongside to a simultaneous drastic reduction of the phase transition temperature TMIT from 68.8 °C to nearly room temperature. More precisely, a substantial thermochromism in multilayered V2O5/V/V2O5 stacks equivalent to that of standard pure VO2 thin films but with a far lower transition temperature, is reported. Such a multilayered V2O5/V/V2O5 thermochromic system exhibited a net control & tunability of the optical transmission modulation in the NIR-IR (∆TTRANS) via the nano-scaled thickness' control of the intermediate Vanadium layer. In addition, the control of ∆TTRANS is accompanied by a tremendous diminution of the thermochromic transition temperature from the elevated bulk value of 68.8 °C to the range of 27.5-37.5 ºC. The observed remarkable and reversible thermochromism in such multilayered nano-scaled system of V2O5/V/V2O5 is likely to be ascribed to a noteworthy interfacial diffusion, and an indirect doping by alkaline ions diffusing from the borosilicate substrate. It is hoped that the current findings would contribute in advancing thermochromic smart window technology and their applications for solar heat management in glass windows in general, skyscraper especially & in the automotive industry. If so, this would open a path to a sustainable green air-conditioning with zero-energy input.
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Affiliation(s)
- B S Khanyile
- MRD-Tandetron Accelerator & Nanosciences African Network, iThemba LABS-National Research Foundation, P O Box 722, Somerset West, 7129, Western Cape Province, South Africa.
- UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P.O. Box 392, Pretoria, 003, South Africa.
| | - N Numan
- MRD-Tandetron Accelerator & Nanosciences African Network, iThemba LABS-National Research Foundation, P O Box 722, Somerset West, 7129, Western Cape Province, South Africa
- UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P.O. Box 392, Pretoria, 003, South Africa
| | - A Simo
- MRD-Tandetron Accelerator & Nanosciences African Network, iThemba LABS-National Research Foundation, P O Box 722, Somerset West, 7129, Western Cape Province, South Africa
- UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P.O. Box 392, Pretoria, 003, South Africa
| | - M Nkosi
- MRD-Tandetron Accelerator & Nanosciences African Network, iThemba LABS-National Research Foundation, P O Box 722, Somerset West, 7129, Western Cape Province, South Africa
- UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P.O. Box 392, Pretoria, 003, South Africa
| | - C B Mtshali
- MRD-Tandetron Accelerator & Nanosciences African Network, iThemba LABS-National Research Foundation, P O Box 722, Somerset West, 7129, Western Cape Province, South Africa
| | - Z Khumalo
- MRD-Tandetron Accelerator & Nanosciences African Network, iThemba LABS-National Research Foundation, P O Box 722, Somerset West, 7129, Western Cape Province, South Africa
| | - I G Madiba
- MRD-Tandetron Accelerator & Nanosciences African Network, iThemba LABS-National Research Foundation, P O Box 722, Somerset West, 7129, Western Cape Province, South Africa
- UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P.O. Box 392, Pretoria, 003, South Africa
| | - B Mabakachaba
- MRD-Tandetron Accelerator & Nanosciences African Network, iThemba LABS-National Research Foundation, P O Box 722, Somerset West, 7129, Western Cape Province, South Africa
- UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P.O. Box 392, Pretoria, 003, South Africa
- Physics Department, University of the Western Cape, P.O. Box 1906, Bellville, 7535, South Africa
| | - H Swart
- Faculty of Natural and Agricultural Sciences, Physics Department, University of the Free State, P.O. Box 339, Bloemfontein, 9300, Republic of South Africa
| | - E Coetsee-Hugo
- Faculty of Natural and Agricultural Sciences, Physics Department, University of the Free State, P.O. Box 339, Bloemfontein, 9300, Republic of South Africa
| | - Mart-Mari Duvenhage
- Faculty of Natural and Agricultural Sciences, Physics Department, University of the Free State, P.O. Box 339, Bloemfontein, 9300, Republic of South Africa
| | - E Lee
- Faculty of Natural and Agricultural Sciences, Physics Department, University of the Free State, P.O. Box 339, Bloemfontein, 9300, Republic of South Africa
| | - M Henini
- School of Physics & Astronomy, Nottingham University, Nottingham, NG7 2RD7, UK
| | - A Gibaud
- IMMM, UMR 6283 CNRS, Bd O. Messiaen, University of Le Maine, 72085, Le Mans Cedex 09, France
| | - M Chaker
- INRS-Energie et Matériaux, 1650 Lionel-Boulet, Varennes, Québec, J3X 1S2, Canada
| | - P Rezaee
- MRD-Tandetron Accelerator & Nanosciences African Network, iThemba LABS-National Research Foundation, P O Box 722, Somerset West, 7129, Western Cape Province, South Africa
- UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P.O. Box 392, Pretoria, 003, South Africa
| | - N Lethole
- Department Physics, University of Fort Hare, Alice, Eastern Cape Province, South Africa
| | - M Akbari
- MRD-Tandetron Accelerator & Nanosciences African Network, iThemba LABS-National Research Foundation, P O Box 722, Somerset West, 7129, Western Cape Province, South Africa
- UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P.O. Box 392, Pretoria, 003, South Africa
| | - R Morad
- MRD-Tandetron Accelerator & Nanosciences African Network, iThemba LABS-National Research Foundation, P O Box 722, Somerset West, 7129, Western Cape Province, South Africa
- UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P.O. Box 392, Pretoria, 003, South Africa
| | - M Maaza
- MRD-Tandetron Accelerator & Nanosciences African Network, iThemba LABS-National Research Foundation, P O Box 722, Somerset West, 7129, Western Cape Province, South Africa.
- UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P.O. Box 392, Pretoria, 003, South Africa.
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Madsen HB, Park JH, Chu X, Hou Y, Li Z, Rasmussen LJ, Croteau DL, Bohr VA, Akbari M. The cGAS-STING signaling pathway is modulated by urolithin A. Mech Ageing Dev 2024; 217:111897. [PMID: 38109974 DOI: 10.1016/j.mad.2023.111897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 11/21/2023] [Accepted: 12/13/2023] [Indexed: 12/20/2023]
Abstract
During aging, general cellular processes, including autophagic clearance and immunological responses become compromised; therefore, identifying compounds that target these cellular processes is an important approach to improve our health span. The innate immune cGAS-STING pathway has emerged as an important signaling system in the organismal defense against viral and bacterial infections, inflammatory responses to cellular damage, regulation of autophagy, and tumor immunosurveillance. These key functions of the cGAS-STING pathway make it an attractive target for pharmacological intervention in disease treatments and in controlling inflammation and immunity. Here, we show that urolithin A (UA), an ellagic acid metabolite, exerts a profound effect on the expression of STING and enhances cGAS-STING activation and cytosolic DNA clearance in human cell lines. Animal laboratory models and limited human trials have reported no obvious adverse effects of UA administration. Thus, the use of UA alone or in combination with other pharmacological compounds may present a potential therapeutic approach in the treatment of human diseases that involves aberrant activation of the cGAS-STING pathway or accumulation of cytosolic DNA and this warrants further investigation in relevant transgenic animal models.
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Affiliation(s)
- H B Madsen
- Center for Healthy Aging, Department of Cellular and Molecular Medicine, SUND, University of Copenhagen, 2200, Copenhagen N, Denmark
| | - J-H Park
- Section on DNA repair, National Institute on Aging, 251 Bayview Blvd, Baltimore, MD, USA
| | - X Chu
- Section on DNA repair, National Institute on Aging, 251 Bayview Blvd, Baltimore, MD, USA
| | - Y Hou
- Section on DNA repair, National Institute on Aging, 251 Bayview Blvd, Baltimore, MD, USA; Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Z Li
- Center for Healthy Aging, Department of Cellular and Molecular Medicine, SUND, University of Copenhagen, 2200, Copenhagen N, Denmark
| | - L J Rasmussen
- Center for Healthy Aging, Department of Cellular and Molecular Medicine, SUND, University of Copenhagen, 2200, Copenhagen N, Denmark
| | - D L Croteau
- Section on DNA repair, National Institute on Aging, 251 Bayview Blvd, Baltimore, MD, USA; Laboratory of Genetics and Genomics, Computational Biology and Genomics Core, National Institute on Aging, 251 Bayview Blvd, Baltimore, USA
| | - V A Bohr
- Center for Healthy Aging, Department of Cellular and Molecular Medicine, SUND, University of Copenhagen, 2200, Copenhagen N, Denmark; Section on DNA repair, National Institute on Aging, 251 Bayview Blvd, Baltimore, MD, USA.
| | - M Akbari
- Center for Healthy Aging, Department of Cellular and Molecular Medicine, SUND, University of Copenhagen, 2200, Copenhagen N, Denmark; Department of Medical Biology, Faculty of Health Sciences, UiT-The Arctic University of Norway, Tromsø, Norway.
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Maaza M, Pardo B, Hamidi D, Akbari M, Morad R, Henini M, Gibaud A. On the trapping of neutrons in Fabry–Pérot nano-structures and potential applications for cold neutron lifetime Investigations. JNR 2023. [DOI: 10.3233/jnr-220015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Correlated to the neutron total reflection phenomenon is the so-called frustrated total reflection, also known as neutron channeling, observed with both thermal and cold neutrons. Within this contribution, such a phenomenon is validated in various additional distinctive Fabry–Pérot nano-resonating configurations; namely in: (i) dual reflection and transmission neutron Fabry–Pérot nano-resonator (Ni/V/Ni/Si substrate), (ii) isotope-based neutron Fabry–Pérot nano-resonator (58Ni/62Ni/58Ni/Silicon substrate), and (iii) multilayered neutron Fabry–Pérot nano-resonator of 8 superposed (B4C/Ti/B4C) single nano-resonators. While such Fabry–Pérot nano-resonators allow effective neutron trapping, the precision of the trapping time of free neutrons in such nano-resonators is governed by the Heisenberg uncertainty and hence offers, a priori, an additional attractive precise approach for potential lifetime investigations. Depending on the configuration of the Fabry–Pérot nano-resonators and the available cold neutron beam, the trapping time is found to be within the temporal regime of 3 to 19 ps. While the main intention of this contribution is to validate the possibility of trapping cold neutrons in nano-structured Fabry–Pérot resonators with a picosecond precision in various configurations, it is hoped that these preliminary results will attract the interest of the neutron lifetime community specifically and the neutron scattering community in general. The potential integration of such trapping method into the bottle or beam methods would elucidate the origin of the difference in neutron lifetime between the two approaches.
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Affiliation(s)
- M. Maaza
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, University of South Africa, PO Box 392, Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), iThemba Laboratories for Accelerators Based Sciences, iThemba LABS-National Research Foundation, PO Box 722, Somerset West, Western Cape Province, South Africa
| | - B. Pardo
- Institut d’Optique Théorique & Appliquée, Université Paris-Saclay, France
| | - D. Hamidi
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, University of South Africa, PO Box 392, Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), iThemba Laboratories for Accelerators Based Sciences, iThemba LABS-National Research Foundation, PO Box 722, Somerset West, Western Cape Province, South Africa
| | - M. Akbari
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, University of South Africa, PO Box 392, Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), iThemba Laboratories for Accelerators Based Sciences, iThemba LABS-National Research Foundation, PO Box 722, Somerset West, Western Cape Province, South Africa
| | - R. Morad
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, University of South Africa, PO Box 392, Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), iThemba Laboratories for Accelerators Based Sciences, iThemba LABS-National Research Foundation, PO Box 722, Somerset West, Western Cape Province, South Africa
| | - M. Henini
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, University of South Africa, PO Box 392, Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), iThemba Laboratories for Accelerators Based Sciences, iThemba LABS-National Research Foundation, PO Box 722, Somerset West, Western Cape Province, South Africa
- Physics Department, University of Nottingham, Nottingham, UK
| | - A. Gibaud
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, University of South Africa, PO Box 392, Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), iThemba Laboratories for Accelerators Based Sciences, iThemba LABS-National Research Foundation, PO Box 722, Somerset West, Western Cape Province, South Africa
- IMMM, UMR 6283 CNRS, Université of Le Maine, Bd O. Messiaen, 72085 Le Mans cedex 09, Le Mans, France
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Sadeghi E, Akbari M, Khanahmadi M, Azizi-Lalabadi M, Karami F. Effect of Pistacia atlantica (Bane) Essential Oil on Oxidative Stability of Sunflower Oil. JFQHC 2023. [DOI: 10.18502/jfqhc.10.1.11985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023] Open
Abstract
Background: The antioxidant activity of Bane (Pistacia atlantica) has been proved in different researches. This study evaluated the potential of Bane (Pistacia atlantica) essential oil (as a natural antioxidant) on the oxidative stability of sunflower oil.
Methods: The essence of Bane was added to sunflower oil at concentrations of 200, 400,600,800, and 1,000 ppm. Tertiary Butyl Hydroquinone (TBHQ) was applied as synthetic antioxidant. All samples with the control were stored at 65 ̊C for 20 days. Gas Chromatography-Mass Spectrometry was used for the essence analysis. The 2,2-diphenyl-1-picrylhydrazyl radical scavenging assay, rancimat, p-anisidine value (P-AnVs), and peroxide value (PV) were determined to assess the efficacy of differecnt concentration of essence (200, 400,600,800, and 1,000 ppm). Data were analyzed by Statistical Analysis System (SAS) version 9 Software.
Results: The essential oil yield was 0.1% v/w. The basic components of essence were monoterpene and sesquiterpene hydrocarbons. Synthetic antioxidant had the highest scavenging activity, followed by the mixture sample. PVs were in the range of 19.56-20.73 milliequivalents (meq)/kg for the treated samples after 20 days, while it was 38.74 on the 20th day for the control. For all treatments, PV was increased with increasing storage time. P-AnVs were 8.58-17.14 for stabilized samples and 18.02 for control sample on the 20th day of storage. In all stages, control sample had the highest P-AnV. For all samples, P-AnV increased as a subject of storage time.
Conclusion: P. atlantica (Bane) essential oil had a stabilizing effect on sunflower oil and can be used as a natural antioxidant to stabilize edible oil during storage.
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Botha NL, Cloete KJ, Welegergs GG, Akbari M, Morad R, Kotsedi L, Matinise N, Bucher R, Azizi S, Maaza M. Physical properties of computationally informed phyto-engineered 2-D nanoscaled hydronium jarosite. Sci Rep 2023; 13:2442. [PMID: 36765188 PMCID: PMC9918463 DOI: 10.1038/s41598-022-25723-z] [Citation(s) in RCA: 2] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 12/05/2022] [Indexed: 02/12/2023] Open
Abstract
This study describes a molecular dynamics computational modelling informed bioengineering of nano-scaled 2-D hydronium jarosite. More specifically, a phyto-engineering approach using green nano-chemistry and agro-waste in the form of avocado seed natural extract was utilized as a green, economic, and eco-friendly approach to synthesize this unique mineral at the nanoscale via the reduction of iron (II) sulphate heptahydrate. The nanoproduct which was found to exhibit a quasi-2D structure was characterized using a multi-technique approach to describe its morphological, optical, electrochemical, and magnetic properties. Radial distribution function and electrostatic potential maps revealed that flavone, a phenolic compound within the avocado seed natural extract, has a higher affinity of interaction with the nanoparticle's surface, whilst vanillic acid has a higher wetting tendency and thus a lower affinity for interacting with the hydronium jarosite nanoparticle surface compared to other phytoactive compounds. XRD and HRTEM results indicated that the nanoscale product was representative of crystalline rhombohedral hydronium jarosite in the form of quasi-triangular nanosheets decorated on the edges with nanoparticles of approximately 5.4 nm diameter that exhibited significant electrochemical and electroconductive behaviours. Magnetic studies further showed a diamagnetic behaviour based on the relationship of the inverse susceptibility of the nanomaterial with temperature sweep.
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Affiliation(s)
- N. L. Botha
- grid.412801.e0000 0004 0610 3238UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology Laboratories, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P. O. Box 392, Pretoria, 0003 South Africa ,grid.462638.d0000 0001 0696 719XNanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, P. O. Box 722, Somerset West, 7129 Western Cape South Africa
| | - K. J. Cloete
- grid.412801.e0000 0004 0610 3238UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology Laboratories, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P. O. Box 392, Pretoria, 0003 South Africa ,grid.462638.d0000 0001 0696 719XNanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, P. O. Box 722, Somerset West, 7129 Western Cape South Africa
| | - G. G. Welegergs
- grid.412801.e0000 0004 0610 3238UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology Laboratories, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P. O. Box 392, Pretoria, 0003 South Africa ,grid.462638.d0000 0001 0696 719XNanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, P. O. Box 722, Somerset West, 7129 Western Cape South Africa ,grid.464565.00000 0004 0455 7818Department of Chemistry, College of Natural Science, Debre Berhan University, P. O. Box 445, Debre Birhan, Ethiopia
| | - M. Akbari
- grid.412801.e0000 0004 0610 3238UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology Laboratories, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P. O. Box 392, Pretoria, 0003 South Africa ,grid.462638.d0000 0001 0696 719XNanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, P. O. Box 722, Somerset West, 7129 Western Cape South Africa
| | - R. Morad
- grid.412801.e0000 0004 0610 3238UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology Laboratories, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P. O. Box 392, Pretoria, 0003 South Africa ,grid.462638.d0000 0001 0696 719XNanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, P. O. Box 722, Somerset West, 7129 Western Cape South Africa
| | - L. Kotsedi
- grid.412801.e0000 0004 0610 3238UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology Laboratories, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P. O. Box 392, Pretoria, 0003 South Africa ,grid.462638.d0000 0001 0696 719XNanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, P. O. Box 722, Somerset West, 7129 Western Cape South Africa
| | - N. Matinise
- grid.412801.e0000 0004 0610 3238UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology Laboratories, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P. O. Box 392, Pretoria, 0003 South Africa ,grid.462638.d0000 0001 0696 719XNanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, P. O. Box 722, Somerset West, 7129 Western Cape South Africa
| | - R. Bucher
- grid.462638.d0000 0001 0696 719XNanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, P. O. Box 722, Somerset West, 7129 Western Cape South Africa
| | - S. Azizi
- grid.412801.e0000 0004 0610 3238UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology Laboratories, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P. O. Box 392, Pretoria, 0003 South Africa ,grid.462638.d0000 0001 0696 719XNanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, P. O. Box 722, Somerset West, 7129 Western Cape South Africa
| | - M. Maaza
- grid.412801.e0000 0004 0610 3238UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology Laboratories, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P. O. Box 392, Pretoria, 0003 South Africa ,grid.462638.d0000 0001 0696 719XNanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, P. O. Box 722, Somerset West, 7129 Western Cape South Africa
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Akbari M, Aliha MRM, Berto F. Investigating the role of different components of friction stir welding tools on the generated heat and strain. Forces in Mechanics 2023. [DOI: 10.1016/j.finmec.2023.100166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Kana N, Morad R, Akbari M, Henini M, Niemela J, Hacque F, Gibaud A, Maaza M. Mercury goes Solid at room temperature at nanoscale and a potential Hg waste storage. Sci Rep 2022; 12:3494. [PMID: 35241681 PMCID: PMC8894422 DOI: 10.1038/s41598-022-06857-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Accepted: 01/27/2022] [Indexed: 11/09/2022] Open
Abstract
While room temperature bulk mercury is liquid, it is solid in its nano-configuration (Ønano-Hg ≤ 2.5 nm). Conjugating the nano-scale size effect and the Laplace driven surface excess pressure, Hg nanoparticles of Ønano-Hg ≤ 2.4 nm embedded in a 2-D turbostratic Boron Nitride (BN) host matrix exhibited a net crystallization at room temperature via the experimentally observed (101) and (003) diffraction Bragg peaks of the solid Hg rhombohedral α-phase. The observed crystallization is correlated to a surface atomic ordering of 7 to 8 reticular atomic plans of the rhombohedral α-phase. Such a novelty of size effect on phase transition phenomena in Hg is conjugated to a potential Hg waste storage technology. Considering the vapor pressure of bulk Hg, Room Temperature (RT) Solid nano-Hg confinement could represent a potential green approach of Hg waste storage derived from modern halogen efficient light technology.
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Affiliation(s)
- N Kana
- UNESCO-UNISA-iTLABS/NRF Africa Chair in Nano-Sciences and Nanotechnology, CGS, University of South Africa, Muckleneuk ridge, Pretoria, 0001, South Africa.
- NANOAFNET, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Western Cape, 7129, South Africa.
| | - R Morad
- UNESCO-UNISA-iTLABS/NRF Africa Chair in Nano-Sciences and Nanotechnology, CGS, University of South Africa, Muckleneuk ridge, Pretoria, 0001, South Africa
- NANOAFNET, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Western Cape, 7129, South Africa
| | - M Akbari
- UNESCO-UNISA-iTLABS/NRF Africa Chair in Nano-Sciences and Nanotechnology, CGS, University of South Africa, Muckleneuk ridge, Pretoria, 0001, South Africa
- NANOAFNET, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Western Cape, 7129, South Africa
| | - M Henini
- UNESCO-UNISA-iTLABS/NRF Africa Chair in Nano-Sciences and Nanotechnology, CGS, University of South Africa, Muckleneuk ridge, Pretoria, 0001, South Africa
- NANOAFNET, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Western Cape, 7129, South Africa
- Physics and Astronomy Department, Nottingham University, Nottingham, NG7 2RD7, UK
| | - J Niemela
- International Centre for Theoretical Physics (ICTP), Str. Costiera, 11, 34151, Trieste, Italy
| | - F Hacque
- UNESCO-UNISA-iTLABS/NRF Africa Chair in Nano-Sciences and Nanotechnology, CGS, University of South Africa, Muckleneuk ridge, Pretoria, 0001, South Africa
- NANOAFNET, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Western Cape, 7129, South Africa
- Physics Department, Rajshahi University, Dakha, Bangladesh
| | - A Gibaud
- UNESCO-UNISA-iTLABS/NRF Africa Chair in Nano-Sciences and Nanotechnology, CGS, University of South Africa, Muckleneuk ridge, Pretoria, 0001, South Africa
- NANOAFNET, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Western Cape, 7129, South Africa
- IMMM, UMR 6283 CNRS, University of Le Maine, Bd O. Messiaen, 72085, Le Mans cedex 09, France
| | - M Maaza
- UNESCO-UNISA-iTLABS/NRF Africa Chair in Nano-Sciences and Nanotechnology, CGS, University of South Africa, Muckleneuk ridge, Pretoria, 0001, South Africa.
- NANOAFNET, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Western Cape, 7129, South Africa.
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9
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Shekari N, Asadi M, Akbari M, Baradaran B, Zarredar H, Mohaddes-Gharamaleki F, Anvarnia A, Baghbanzadeh A, Shanehbandi D. Autophagy-regulating microRNAs: two-sided coin in the therapies of breast cancer. Eur Rev Med Pharmacol Sci 2022; 26:1268-1282. [PMID: 35253184 DOI: 10.26355/eurrev_202202_28120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Despite recent advances in the treatment of breast cancer (BC), it still remains as a prevalent and deadly cancer in the world. Given that BC is a heterogeneous disease, it is necessary to clarify molecular mechanisms in tumor cells to improve various therapy outcomes and overcome therapy resistance. Autophagy represents one of the most important intracellular degradation pathways involved in diverse biological processes and plays an important bi-directional role in tumor formation and progression. Among the several mechanisms that affect autophagy, microRNAs (miRNAs) play a crucial role as gene regulators. Several in vivo and in vitro studies have reported multiple miRNAs regulating autophagy in BC that affect tumor initiation, progression, and response to various therapies. In the present review, we highlighted the mechanisms through which miRNAs regulate autophagy in BC and their potential use as therapeutic targets.
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Affiliation(s)
- N Shekari
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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10
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Khosrobeygi M, Mosavari N, Salehi M, Mojgani N, Akbari M. Isolation and Purification of Low Molecular Weight Proteins from Culture Filtrate of Mycobacterium Tuberculosis Strain C. Arch Razi Inst 2021; 76:273-281. [PMID: 34223726 DOI: 10.22092/ari.2020.127691.1390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 02/15/2020] [Indexed: 09/30/2022]
Abstract
In the last couple of years, a number of new and rapid tests for the diagnosis of Tuberculosis (TB) have been developed based on the low molecular weight antigens from Mycobacterium tuberculosis (Mtb) culture supernatant. This study aimed to isolate and purify low molecular weight antigens secreted by Mtb strain C for diagnostic purpose. The secretory proteins from culture filtrate of Mtb were extracted using ammonium sulphate precipitations and sephadex-G50 gel chromatography. The obtained antigen fractions were analyzed for their protein concentrations and approximate molecular weight using Lowry method and SDS-PAGE (12.5%), respectively. DOT-ELISA and Western blot assay was performed to confirm the presence of purified low molecular weight proteins isolated from Mtb using sera from pulmonary tuberculosis patients (polyclonal antibodies). During chromatography, low molecular weight proteins were separated, that was approximately 0.7 mg/ml of the total proteins (1.662 mg/ml). The purified protein fractions in molecular weight range of 14 kDa-41kDa appeared during SDS-PAGE analysis. The chromatographic band fraction in the weight range of 30-41 kDa was identified in the TB patients’ sera using Western blotting. The low molecular weight proteins in the culture filtrate of Mtb strain C were purified using ammonium sulphate and chromatography. These fractions were confirmed using Western blotting. The obtained results might support the hypothesis that the Mtb culture filtrate antigens could be used as a rapid and sensitive assay for the detection of patients with pulmonary TB.
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Affiliation(s)
- M Khosrobeygi
- Department of Biological Sciences, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - N Mosavari
- Reference Laboratory of Bovine Tuberculosis, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.,Reference Laboratory of Bovine Tuberculosis, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - M Salehi
- Department of Biological Sciences, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - N Mojgani
- Reference Laboratory of Bovine Tuberculosis, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - M Akbari
- Department of Microbiology, Arak University of Medical Sciences, Arak, Iran
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11
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Mehrjoo Z, Kahrizi K, Mohseni M, Akbari M, Arzhangi S, Jalalvand K, Najmabadi H, Farhadi M, Mohseni M, Asghari A, Mohebbi S, Daneshi A. Limbic System Associated Membrane Protein Mutation in an Iranian Family Diagnosed with Ménière's Disease. Arch Iran Med 2020; 23:319-325. [PMID: 32383616 DOI: 10.34172/aim.2020.21] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 01/26/2020] [Indexed: 12/31/2022]
Abstract
BACKGROUND Ménière's disease (MD) is a common inner ear disorder which is characterized by recurrent attacks of vertigo, fluctuating sensorineural hearing loss (SNHL), tinnitus, and a sense of fullness in the affected ear. MD is a complex disorder; although six genes have been linked to familial autosomal dominant form of the disease, in many cases, the exact genetic etiology remains elusive. METHODS To elucidate the genetic causes of MD in an Iranian family, we performed exome sequencing on all members of the family: consanguineous parents and four children (two affected and two unaffected). Variant filtering was completed using a customized workflow keeping variants based on segregation with MD in autosomal recessive (AR) inheritance pattern, minor allele frequency (MAF), and in-silico prediction of pathogenicity. RESULTS Analysis revealed that in this family, 970 variants co-segregated with MD in AR pattern, out of which eight variants (one intergenic, four intronic, and three exonic) were extremely rare. The exonic variants included a synonymous substitution in USP3 gene, an in-frame deletion in ZBED2 gene, and a rare, highly conserved deleterious missense alteration in LSAMP gene. CONCLUSION The phenotype observed in the proband described here, i.e. vertigo, poor sense of smell, tinnitus, and borderline hearing ability, may originate from aberrant changes in the cerebellum and limbic system due to a deleterious mutation in the LSAMP gene; hence, LSAMP mutation is a possible candidate for the etiology of MD in this family.
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Affiliation(s)
- Zohreh Mehrjoo
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Kimia Kahrizi
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Marzieh Mohseni
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Mojdeh Akbari
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Sanaz Arzhangi
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Khadijeh Jalalvand
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Hossein Najmabadi
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Mohammad Farhadi
- ENT and Head & Neck Research Center and Department, Hazrat Rasoul Hospital, The Five Senses Institute, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Mohseni
- ENT and Head & Neck Research Center and Department, Hazrat Rasoul Hospital, The Five Senses Institute, Iran University of Medical Sciences, Tehran, Iran
| | - Alimohamad Asghari
- Skull Base Research Center, The Five Senses Institute, Iran University of Medical Sciences, Tehran, Iran
| | - Saleh Mohebbi
- Skull Base Research Center, The Five Senses Institute, Iran University of Medical Sciences, Tehran, Iran
| | - Ahmad Daneshi
- ENT and Head & Neck Research Center and Department, Hazrat Rasoul Hospital, The Five Senses Institute, Iran University of Medical Sciences, Tehran, Iran
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12
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Ghadiri A, Abdollahy M, Khanchi A, Khalesi MR, Akbari M. Synthesis and Characterization of Thorite Nanoparticles by Hydrothermal Method. RUSS J INORG CHEM+ 2020. [DOI: 10.1134/s0036023619140122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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Rezaee M, Hajiaghaee R, Azizbeigi K, Rahmati-Ahmadabad S, Helalizadeh M, Akbari M, Farzanegi P, Azarbayjani MA. The effect of essential oil of rosemary on eccentric exercise-induced delayed-onset muscle soreness in non-active women. CEP 2020; 16:129-136. [DOI: 10.3920/cep190034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/30/2023]
Abstract
Muscle soreness is a problem associated with physical activities. Recently, the medicinal herbs are strategies to prevent muscle soreness. The present study aims were to determine the effect of rosemary essential oil on the responses of lactate dehydrogenase, creatine kinase (CK), lymphocytes, neutrophils, muscle swelling (MS) and muscle pain (MP) following eccentric leg curl exercise in non-active women. 24 non-active females voluntarily participated in this study and were randomly assigned into three groups: rosemary dose 1 (RD1) (n=8; 0.25 ml), rosemary dose 2 (RD2) (n=8; 0.5 ml) and placebo (n=8; 0.5 ml olive oil). Participants in supplement groups consumed the desire amounts of rosemary essential oil every 8 h per day for 14 days. Then, the eccentric leg curl exercise was performed. The supplementation continued until 72 h after exercise. The serum variables, as well as, MS and MP were measured before, 24, 48 and 72 h after exercise. Data were analysed using repeated measure analysis of variance and P≤0.05 considered as significant. The results showed that rosemary significantly decreases CK in RD2 compared with placebo and RD1 48 h after exercise. There was no other significant difference in other serum variables. In conclusion, the present study showed a beneficial effect of rosemary on 48-h post-exercise serum CK concentration (a muscle damage indicator).
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Affiliation(s)
- M. Rezaee
- Department of Exercise Physiology, Central Tehran Branch, Islamic Azad University, 1955847781 Tehran, Iran
| | - R. Hajiaghaee
- Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, 141554364 Karaj, Iran
| | - K. Azizbeigi
- Department of Physical Education and Sports Sciences, Sanandaj branch, Islamic Azad University, 6616935391 Sanandaj, Iran
| | - S. Rahmati-Ahmadabad
- Department of Physical Education, Pardis branch, Islamic Azad University, 1658174583 Pardis, Iran
| | - M. Helalizadeh
- Department of Exercise Physiology, Sport Medicine Research Center, Sport Sciences Research Institute, No. 3, 5th Alley, Miremad Street, Motahhari Street, Tehran, Iran
| | - M. Akbari
- Shahid Rajaee Teacher Training University, P.O. Box 16785-163, Lavizan, Tehran, Iran
| | - P. Farzanegi
- Department of Exercise Physiology, Sari Branch, Islamic Azad University, 4816119318 Sari, Iran
| | - M.-A. Azarbayjani
- Department of Exercise Physiology, Central Tehran Branch, Islamic Azad University, 1955847781 Tehran, Iran
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14
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Jafari F, Khanzadeh Gharah Shiran MR, Bakhtiari Z, Akbari M, Shajari Y, Seyedraoufi ZS, Bakhtiari H. Electrochemical and Microstructural Investigations of AA6063 Friction Stir Welded Joint. Surf Engin Appl Electrochem 2020. [DOI: 10.3103/s1068375520010093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Akbari M, Ashrafi S, Bouyeh M, Jaber J, Seidavi A, Ventura M. Evaluation of Chamomile (Matricaria chamomilla L.) as an Alternative Growth Promoter in Broiler Chicks. ANIM NUTR FEED TECHN 2020. [DOI: 10.5958/0974-181x.2020.00007.4] [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: 10/24/2022]
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16
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Déry L, Charest G, Akbari M, Fortin D. P11.40 Development of an implantable multifunctional biodevice (GlioGel) in the treatment of recurrent glioblastoma. Neuro Oncol 2019. [DOI: 10.1093/neuonc/noz126.186] [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: 11/13/2022] Open
Abstract
Abstract
BACKGROUND
Glioblastoma (GBM) is a devastating disease with a median survival of 14–16 months. This poor prognosis can be explained by 3 factors. First, the infiltrative nature of the disease prohibits a complete removal of the tumor. Second, some of the tumor cells are brain tumor stem cells, which are highly migratory and highly resistant to treatments. Finally, the presence of the blood-brain barrier prohibits entry of therapeutics. This situation implies that new treatment approaches must be directed toward the infiltrated brain surrounding the resection cavity. To bypass this problem and improve the potency of adjuvant treatment, we have designed a new “GlioGel-device” that will have the ability to: 1- attract the migrating tumor cells into or nearby the device, and 2- subsequently deliver chemotherapy to the locally pooled tumor cells and 3- irradiate these cells with radioisotopes embedded in the GlioGel.
MATERIAL AND METHODS
In vitro proof of principle of chemoattraction was investigated by agarose drops method releasing chemokines molecules (CCL2, CCL11, CXCL10) with F98 and U87MG GBM cells. In vivo experiments evaluated the efficiency of chemokines and doxorubicin released by the implanted GlioGel on the tumor behaviour in our Fischer-F98 rat glioma model. An histology of tumour behaviour exposed to chemokines and survival of GBM rats treated with doxorubicin were analysed.
RESULTS
In vitro preliminary results for chemoattraction assays show that up to 2 times more cells invade the gel when it releases chemoattractant compared to PBS. The In vivo chemotherapy experiments with a fast, medium and slow release of doxorubicin from the GlioGel show that a local dose that represent a 1300-fold smaller dose than a normal intravenous systemic dose gave a significant reduction in tumour growth (median survival) compared to a control group. We investigated the effect provided by the GlioGel impregnated with chemokines on tumor cells migration, after implantation in the Fischer-F98 rat glioma model.
CONCLUSION
This preliminary study shows the ability of GlioGel releasing chemokines and doxorubicin to respectively attract and kill orthotopic glioblastoma cells. These encouraging results will be completed with a combination of short-range (high LET) radiation by embedded radioisotope into the GlioGel aiming for synergistic combination to eradicate as much tumour cells as possible, while limiting systemic side effects.
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Affiliation(s)
- L Déry
- Université de Sherbrooke, Sherbrooke, QC, Canada
| | - G Charest
- Université de Sherbrooke, Sherbrooke, QC, Canada
| | - M Akbari
- Université de Victoria, Victoria, BC, Canada
| | - D Fortin
- Université de Sherbrooke, Sherbrooke, QC, Canada
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17
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Akbari M, Yassaee F, Aminbeidokhti M, Abedin-Do A, Mirfakhraie R. LncRNA SRA1 may play a role in the uterine leiomyoma tumor growth regarding the MED12 mutation pattern. Int J Womens Health 2019; 11:495-500. [PMID: 31507331 PMCID: PMC6718952 DOI: 10.2147/ijwh.s211632] [Citation(s) in RCA: 7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 08/01/2019] [Indexed: 11/23/2022] Open
Abstract
Background Uterine leiomyomas (ULMs) are benign uterine tumors that are estrogen-dependent. Recent studies suggest that the abnormal expression of the steroid receptor RNA activator 1 (SRA1) long non-coding RNA (lncRNA) might participate in the mechanisms of tumorigenesis of some hormone-dependent tumors including breast cancer. SRA1 is known to enhance the transcriptional activity of steroid receptors and also promotes steroidogenesis. The level of steroid hormones, such as estrogen and the progesterone, and their receptors play an important role in the development and growth of leiomyoma. The aim of the present study was to determine the expression level of lncRNA SRA1 in ULM tissues considering the MED12 mutation pattern. Methods Mutation screening was performed for MED12 exons 1 and 2 and the intronic flanking regions using Sanger sequencing in 60 ULM tissues. Quantitative real-time polymerase chain reaction (qRT-PCRs) was performed in order to estimate the expression of lncRNA SRA1 in leiomyoma samples with and without MED12 gene mutations. The expression results were analyzed by using LinReg and REST software. Results Mutations were detected in exon 2 of the MED12 in 28 (46.67%) ULM samples; including, 21 (75%) missense mutations and 7 (25%) in-frame deletions. No mutation was detected in the MED12 exon 1. LncRNA SRA1 was over-expressed in ULM samples without MED12 mutation compared with ULM samples harboring MED12 mutation (Expression ratio=2.5, P-value=0.004). Conclusion Present results suggest that lncRNA SRA1 may explain the phenotypic difference observed in the tumor size of ULM samples considering MED12 mutation pattern. Therefore, it serves as a good therapeutic target and provides new insight into understanding the disease molecular mechanism.
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Affiliation(s)
- Mojdeh Akbari
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fakhrolmolouk Yassaee
- Department of Obstetrics and Gynecology, Taleghani Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mona Aminbeidokhti
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Atieh Abedin-Do
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,GREB, Dental Faculty, Department of Regenerative Medicine, Faculty of Medicine, Laval University, Quebec, Canada
| | - Reza Mirfakhraie
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Molecular Genetics, Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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18
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Ataei R, Khoshbakht S, Beheshtian M, Abedini SS, Behravan H, Esmaeili Dizghandi S, Godratpour F, Mirzaei S, Bahrami F, Akbari M, Keshavarzi F, Kahrizi K, Najmabadi H. Contribution of Iran in Elucidating the Genetic Causes of Autosomal Recessive Intellectual Disability. Arch Iran Med 2019; 22:461-471. [PMID: 31679349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 05/15/2019] [Indexed: 06/10/2023]
Abstract
Many genes with different inheritance modes contribute to the pathogenicity of intellectual disability (ID) making it the most known genetically heterogeneous disorder. Advanced next-generation sequencing (NGS) technologies have helped researchers identify genes underlying ID at an exponential pace. As a consanguineous country, Iran is a hotspot for discovering novel autosomal recessive intellectual disability (ARID) genes. Here, we aimed to review and compare reported ARID gene discovery both in Iran and globally, and pinpoint the research areas that need to be developed in future. We studied published articles and reviews on all known ID genes. In parallel, the gene-discovery research carried out on the Iranian population were also reviewed to determine the contribution of Iran to identifying novel ID genes. Also we tried to find supporting evidence on the causative role of novel genes identified in Iran including confirmatory functional studies and existence of more affected families. We also briefly reviewed the current therapeutic approaches under development for a subset of eligible ID cases. In total, 8% of all ID and 11.5% of all ARID genes described so far have been identified via studies on Iranian population. Functional studies have been performed on 29% of the genes identified in Iran. More than one affected family has been reported for many of these genes, supporting their causative role in ID pathogenesis. Despite the notable contribution of Iran in gene-discovery research, further functional studies on the identified genes are required.
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Affiliation(s)
- Reza Ataei
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Shahrouz Khoshbakht
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Maryam Beheshtian
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Seyedeh Sedigheh Abedini
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Hanieh Behravan
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Saeed Esmaeili Dizghandi
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Fatemeh Godratpour
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Sepide Mirzaei
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Fatemeh Bahrami
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Mojdeh Akbari
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Fatemeh Keshavarzi
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Kimia Kahrizi
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Hossein Najmabadi
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
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19
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Mehregan H, Mohseni M, Akbari M, Jalalvand K, Arzhangi S, Nikzat N, Kahrizi K, Najmabadi H. Novel Mutations in KCNQ4, LHFPL5 and COCH Genes in Iranian Families with Hearing Impairment. Arch Iran Med 2019; 22:189-197. [PMID: 31126177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 02/13/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Hearing loss (HL) is the most common sensory deficit in humans, and genetic factors contribute to about half of the cases. With 112 causative genes identified so far and a disproportionate share of the genes within different ethnic groups, HL has proven to be quite heterogeneous. METHODS Twenty Iranian families having at least 2 children with hereditary HL were initially verified to be GJB2-negative and were then subjected to whole exome sequencing (WES). Sanger sequencing was used to confirm segregation of the variant identified in each family. RESULTS In 3 families, WES revealed 3 novel variants in KCNQ4, LHFPL5 and COCH genes. The KCNQ4 gene (DFNA2A) encodes a potassium channel (KV7.4) and the heterozygous variant identified (c.1647C>G, p.F549L) resulted in the substitution of Phe549 residing in the KV7.4 cytoplasmic region. The homozygous variant (c.34A>T, p.K12X) was identified in the LHFPL5 gene (DFNB67) which encodes a transmembrane protein, and another variant in a homozygous state (c.116T>A, p.L39X) was identified in the COCH gene which encodes a secretory protein. Pathogenic variants in the COCH gene are associated with late onset autosomal dominant hearing loss (DFNA9) but the affected individuals displayed early onset HL with a recessive mode of inheritance. CONCLUSION The 16% contribution of GJB2 to HL in the Iranian population necessitates the discovery of the remaining causal factors. This study is the first to report KCNQ4 and COCH related HL in the Iranian population and the second study, globally, to report HL due to biallelic inactivation of the COCH gene.
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Affiliation(s)
- Hoda Mehregan
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Evin, Tehran 19834, Iran
| | - Marzieh Mohseni
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Evin, Tehran 19834, Iran
| | - Mojdeh Akbari
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Evin, Tehran 19834, Iran
| | - Khadijeh Jalalvand
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Evin, Tehran 19834, Iran
| | - Sanaz Arzhangi
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Evin, Tehran 19834, Iran
| | - Nooshin Nikzat
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Evin, Tehran 19834, Iran
| | - Kimia Kahrizi
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Evin, Tehran 19834, Iran
| | - Hossein Najmabadi
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Evin, Tehran 19834, Iran
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20
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Akbari M, Abedin Do A, Yassaee F, Mirfakhraie R. MED12 Exon 1 Mutational Screening in Iranian Patients with Uterine Leiomyoma. Rep Biochem Mol Biol 2019; 8:21-24. [PMID: 31334283 PMCID: PMC6590935] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 02/07/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Uterine leiomyoma, also called fibroid, is a benign tumor that arises due to monoclonal transformation of myometrium, the smooth muscle cell layer of the uterus. Fibroids cause several complications including infertility, miscarriage, bleeding, pain, and dysmenorrhea. Recent studies have revealed the role of mutations in MED12 gene exon 2 in various populations; however, the reported frequency of these mutations differs between reports. In addition, it is suggested that mutations in exon 1 may also play a role in leiomyoma. The aim of the present study was to screen for MED12 exon 1 mutations in leiomyoma tissue samples of Iranian patients. METHODS We performed mutational analysis of exon 1 and the flanking intronic regions using multi-temperature single-strand conformational polymorphism (MSSCP) and sequencing analyses in 120 uterine leiomyoma samples. RESULTS No mutations were detected in exon 1 of MED12 in our samples. CONCLUSION According to the literature and the present results, mutations in the MED12 exon 1 are rare. However, we could not ignore the role of these mutations in developing leiomyoma.
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Affiliation(s)
- Mojdeh Akbari
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Atieh Abedin Do
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Fakhrolmolouk Yassaee
- Department of Obstetrics and Gynecology, Taleghani Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Reza Mirfakhraie
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Akbari M, Salehi H, Niazi A. Evaluation of Diversity Based on Morphological Variabilities and ISSR Molecular Markers in Iranian Cynodon dactylon (L.) Pers. Accessions to Select and Introduce Cold-Tolerant Genotypes. Mol Biotechnol 2018; 60:259-270. [PMID: 29484577 DOI: 10.1007/s12033-018-0068-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 11/26/2022]
Abstract
The main goals of the present study were to screen Iranian common bermudagrasses to find cold-tolerant accessions and evaluate their genetic and morphological variabilities. In this study, 49 accessions were collected from 18 provinces of Iran. One foreign cultivar of common bermudagrass was used as control. Morphological variation was evaluated based on 14 morphological traits to give information about taxonomic position of Iranian common bermudagrass. Data from morphological traits were evaluated to categorize all accessions as either cold sensitive or tolerant using hierarchical clustering with Ward's method in SPSS software. Inter-Simple Sequence Repeat (ISSR) primers were employed to evaluate genetic variability of accessions. The results of our taxonomic investigation support the existence of two varieties of Cynodon dactylon in Iran: var. dactylon (hairless plant) and var. villosous (plant with hairs at leaf underside and/or upper side surfaces or exterior surfaces of sheath). All 15 primers amplified and gave clear and highly reproducible DNA fragments. In total, 152 fragments were produced, of which 144 (94.73%) being polymorphic. The polymorphic information content (PIC) values ranged from 0.700 to 0.928. The average PIC value obtained with 15 ISSR primers was 0.800, which shows that all primers were informative. Probability identity (PI) and discriminating power between all primers ranged from 0.029 to 0.185 and 0.815 to 0.971, respectively. Genetic data were converted into a binary data matrix. NTSYS software was used for data analysis. Clustering was done by the unweighted pair-group method with arithmetic averages and principle coordinate analysis, separated the accessions into six main clusters. According to both morphological and genetic diversity investigations of accessions, they can be clustered into three groups: cold sensitive, cold semi-tolerant, and cold tolerant. The most cold-tolerant accessions were: Taft, Malayear, Gorgan, Safashahr, Naein, Aligoudarz, and the foreign cultivar. This study may provide useful information for further breeding programs on common bermudagrass. Selected genotypes can be evaluated for other abiotic stresses such as drought and salinity.
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Affiliation(s)
- M Akbari
- Department of Horticultural Science, School of Agriculture, Shiraz University, Shiraz, Iran
| | - H Salehi
- Department of Horticultural Science, School of Agriculture, Shiraz University, Shiraz, Iran.
| | - A Niazi
- Institute of Biotechnology, Shiraz University, Shiraz, Iran
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Roghani-Dehkordi F, Hashemifard O, Mansouri R, Dehghani A, Akbari M. P5517Presentation of a novel access route (snuff box/deep palmar branch of radial artery) for coronary angiography and intervention. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - O Hashemifard
- Hospital Chamran, Isfahan, Iran (Islamic Republic of)
| | - R Mansouri
- Hospital Chamran, Isfahan, Iran (Islamic Republic of)
| | - A Dehghani
- Hospital Chamran, Isfahan, Iran (Islamic Republic of)
| | - M Akbari
- Hospital Chamran, Isfahan, Iran (Islamic Republic of)
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Mahmoudi N, Eslahi N, Mehdipour A, Mohammadi M, Akbari M, Samadikuchaksaraei A, Simchi A. Temporary skin grafts based on hybrid graphene oxide-natural biopolymer nanofibers as effective wound healing substitutes: pre-clinical and pathological studies in animal models. J Mater Sci Mater Med 2017; 28:73. [PMID: 28361280 DOI: 10.1007/s10856-017-5874-y] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 02/28/2017] [Indexed: 06/07/2023]
Abstract
In recent years, temporary skin grafts (TSG) based on natural biopolymers modified with carbon nanostructures have received considerable attention for wound healing. Developments are required to improve physico-mechanical properties of these materials to match to natural skins. Additionally, in-deep pre-clinical examinations are necessary to ensure biological performance and toxicity effect in vivo. In the present work, we show superior acute-wound healing effect of graphene oxide nanosheets embedded in ultrafine biopolymer fibers (60 nm) on adult male rats. Nano-fibrous chitosan-based skin grafts crosslinked by Genepin with physico-mechanical properties close to natural skins were prepared by electrospinning of highly concentrated chitosan- polyvinylpyrrolidone solutions containing graphene oxide (GO) nanosheets. No surfactants and organic solvents were utilized to ensure high biocompatibility of the fibrous structure. In vitro evaluations by human skin fibroblast cells including live and dead assay and MTT results show that GO promote cell viability of porous nanofibrous membrane while providing enhanced bactericidal capacity. In vivo studies on rat's skin determine accelerated healing effect, i.e. a large open wound (1.5 × 1.5 cm2) is fully regenerated after 14-day of post operation while healing is observed for sterile gauze sponge (as the control). Pathological studies support thick dermis formation and complete epithelialization in the presence of 1.5 wt% GO nanosheets. Over 99% wound healing occurs after 21 days for the injury covered with TSG containing 1.5 wt% GO while this would takes weeks for the control. Therefore, the developed materials have a high potential to be used as TSG as pre-clinical testing has shown.
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Affiliation(s)
- N Mahmoudi
- Department of Materials Science and Engineering, Sharif University of Technology, P.O. Box11155-9161, Azadi Avenue, Tehran, 14588, Iran
| | - N Eslahi
- Department of Textile Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - A Mehdipour
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - M Mohammadi
- Department of Materials Science and Engineering, Sharif University of Technology, P.O. Box11155-9161, Azadi Avenue, Tehran, 14588, Iran
| | - M Akbari
- Department of Mechanical Engineering, University of Victoria, Victoria, BC, Canada
| | - A Samadikuchaksaraei
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - A Simchi
- Department of Materials Science and Engineering, Sharif University of Technology, P.O. Box11155-9161, Azadi Avenue, Tehran, 14588, Iran.
- Institute for Nanoscience and Nanotechnology, Sharif University of Technology, P. O. Box 11365-9466, Azadi Avenue, Tehran, 14588, Iran.
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Kotsopoulos J, Oden L, Akbari M, Singer C, Sun P, Salmena L, Narod S. Abstract P5-09-01: Plasma osteoprotegerin and the risk of breast cancer in BRCA1 and BRCA2 mutation carriers. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p5-09-01] [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: 11/16/2022]
Abstract
Abstract
This abstract was withdrawn by the authors.
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Affiliation(s)
- J Kotsopoulos
- Women's College Research Institute, Women's College Hospital, Toronto, ON, Canada; Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada; Karolinska Institutet, Stockholm, Sweden; Medical University of Vienna, Vienna, Austria; University of Toronto, Toronto, ON, Canada
| | - L Oden
- Women's College Research Institute, Women's College Hospital, Toronto, ON, Canada; Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada; Karolinska Institutet, Stockholm, Sweden; Medical University of Vienna, Vienna, Austria; University of Toronto, Toronto, ON, Canada
| | - M Akbari
- Women's College Research Institute, Women's College Hospital, Toronto, ON, Canada; Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada; Karolinska Institutet, Stockholm, Sweden; Medical University of Vienna, Vienna, Austria; University of Toronto, Toronto, ON, Canada
| | - C Singer
- Women's College Research Institute, Women's College Hospital, Toronto, ON, Canada; Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada; Karolinska Institutet, Stockholm, Sweden; Medical University of Vienna, Vienna, Austria; University of Toronto, Toronto, ON, Canada
| | - P Sun
- Women's College Research Institute, Women's College Hospital, Toronto, ON, Canada; Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada; Karolinska Institutet, Stockholm, Sweden; Medical University of Vienna, Vienna, Austria; University of Toronto, Toronto, ON, Canada
| | - L Salmena
- Women's College Research Institute, Women's College Hospital, Toronto, ON, Canada; Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada; Karolinska Institutet, Stockholm, Sweden; Medical University of Vienna, Vienna, Austria; University of Toronto, Toronto, ON, Canada
| | - S Narod
- Women's College Research Institute, Women's College Hospital, Toronto, ON, Canada; Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada; Karolinska Institutet, Stockholm, Sweden; Medical University of Vienna, Vienna, Austria; University of Toronto, Toronto, ON, Canada
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Patel I, Wungjiranirun M, Theethira T, Villafuerte-Galvez J, Castillo N, Akbari M, Alonso CD, Leffler DA, Kelly CP. Lack of adherence to SHEA-IDSA treatment guidelines for Clostridium difficile infection is associated with increased mortality. J Antimicrob Chemother 2017; 72:574-581. [PMID: 28115504 PMCID: PMC6074846 DOI: 10.1093/jac/dkw423] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [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] [Received: 05/13/2016] [Revised: 09/01/2016] [Accepted: 09/08/2016] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVES The objective of this study was to determine our institution's compliance with 2010 Society for Healthcare Epidemiology of America and IDSA Clostridium difficile infection (CDI) treatment guidelines and their respective outcomes. METHODS We collected clinical parameters, laboratory values, antibiotic therapy and clinical outcomes from the electronic medical records for all patients hospitalized at our institution with a diagnosis of CDI from December 2012 to November 2013. We specifically evaluated whether SHEA-IDSA treatment guidelines were followed and evaluated the associations between guideline adherence and severe outcomes including mortality. RESULTS We identified 230 patients with CDI meeting inclusion criteria during the study period. Of these, 124 (54%) were appropriately treated, 46 (20%) were under-treated and 60 (26%) were over-treated. All-cause 90 day mortality was 17.4% overall; 43.5% in the under-treated group versus 12.9% in those appropriately treated (P < 0.0001) and 10.9% in those appropriately treated plus over-treated (P < 0.0001). Similarly, 90 day mortality attributed to CDI was 21.7% in those under-treated versus 8.9% in those appropriately treated (P = 0.03) and 8.2% in those either appropriately treated or over-treated (P = 0.015). Severe-complicated CDI occurred in 46 patients. In this subgroup, there was a non-significant trend towards increased mortality in under-treated patients (56.7%) compared with appropriately treated patients (37.5%, P = 0.35). Under-treatment was also associated with a higher rate of CDI-related ICU transfer (17.4% versus 4.8% in those appropriately treated, P = 0.023). CONCLUSIONS Adherence to CDI treatment guidelines is associated with improved outcomes especially in those with severe disease. Increased emphasis on provision of appropriate, guideline-based CDI treatment appears warranted.
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Affiliation(s)
- I Patel
- Department of Medicine and Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - M Wungjiranirun
- Department of Medicine and Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - T Theethira
- Department of Medicine and Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - J Villafuerte-Galvez
- Department of Medicine and Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - N Castillo
- Department of Medicine and Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - M Akbari
- Department of Medicine and Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - C D Alonso
- Department of Medicine and Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - D A Leffler
- Department of Medicine and Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - C P Kelly
- Department of Medicine and Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, MA, USA
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Sabet N, Akbari M, Zandvakili A. A new method for providing a model to analyze a kite wind turbine. J Fundam and Appl Sci 2016. [DOI: 10.4314/jfas.v8i2s.143] [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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Akbari M, Nejat AH, Farkhondeh N, Mehraban Moghadam S, Hashemy SI, Mohammadipour HS. Does at-home bleaching induce systemic oxidative stress in healthy subjects? Aust Dent J 2016; 62:58-64. [PMID: 27091347 DOI: 10.1111/adj.12425] [Citation(s) in RCA: 4] [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] [Accepted: 04/14/2016] [Indexed: 02/04/2023]
Abstract
BACKGROUND At-home bleaching is a technique characterized by the use of carbamide peroxide or hydrogen peroxide as a tooth-whitening agent. However, no data exist regarding systemic safety of this technique. The aim of this study was to investigate the effect of at-home bleaching on serum redox homeostasis. METHODS Twenty-nine healthy volunteers who requested tooth-whitening participated in this study. Specified bleaching trays were fabricated for the maxilla and mandible arches. Each participant was given two syringes containing 9% hydrogen peroxide gel to use for 30 min/night for 14 nights consecutively. To evaluate the redox status, the serum concentrations of malondialdehyde (MDA), total antioxidant capacity (TAC) and pro-oxidant-antioxidant balance (PAB) were measured. Blood samples were obtained in the morning prior to initiation of study and the morning after expiration of the bleaching period. The collected data were analyzed using Student's t-test with 95% confidence interval. RESULTS Twenty-three subjects completed the study. MDA, PAB and TAC were significantly increased after the bleaching period (P = 0.001, 0.001 and 0.002, respectively). CONCLUSIONS At-home bleaching revealed the potential to disturb oxidant-antioxidant balance and induce oxidative stress. Its clinical relevance is unfavourable and potential side-effects of at-home bleaching should be considered.
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Affiliation(s)
- M Akbari
- Dental Research Centre, Department of Operative and Esthetic Dentistry, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - A H Nejat
- Post Graduate Student of Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - N Farkhondeh
- Department of Operative and Esthetic Dentistry, School of Dentistry, Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - S Mehraban Moghadam
- Department of Immunology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - S I Hashemy
- Surgical Oncology Research Centre, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - H S Mohammadipour
- Dental Materials Research Centre, Department of Operative and Esthetic Dentistry, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
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Khosravani M, Azarbayjani MA, Abolmaesoomi M, Yusof A, Zainal Abidin N, Rahimi E, Feizolahi F, Akbari M, Seyedjalali S, Dehghan F. Ginger extract and aerobic training reduces lipid profile in high-fat fed diet rats. Eur Rev Med Pharmacol Sci 2016; 20:1617-22. [PMID: 27160137] [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: 06/05/2023]
Abstract
OBJECTIVE Obesity, hyperglycemia and dyslipidemia, are major risk factors. However, natural therapies, dietary components, and physical activity may effect on these concerns. The aim of this study was to examine the effect of aerobic exercise and consumption of liquid ginger extract on lipid profile of Male rats with a high-fat fed diet. MATERIALS AND METHODS 32 rats were randomly divided into 4 groups: 1) aerobic exercise, 2) Ginger extract, 3) combined aerobic exercise and Ginger extract, and 4) the control. Subjects of the first three groups received ginger extract via gavage feeding of 250 mg/kg. The exercise program was 3 sessions per week on 3 different days over 4 weeks. Total cholesterol (TC), Triglyceride (TG), HDL and LDL were measured 24-h before the first session and 24-h after the final training session. RESULTS The concentration of TG in the control group was significantly higher than other groups. In addition, the mean concentration of TG in the aerobic exercise group was significantly lower than Ginger extract group but there was no significant difference as compared to combined aerobic exercise and ginger extract group. The combination of aerobic exercise and ginger consumption significantly reduced the TG level compared to ginger group. TC and LDL concentrations were significantly decreased in all groups compare to control. The combination of aerobic exercise and ginger extract feeding caused a significant increase in HDL levels. CONCLUSIONS The finding of this study suggests that the combination of aerobic exercise and liquid ginger extract consumption might be an effective method of reducing lipid profiles, which will reduce the risk of cardiovascular diseases caused by high-fat diets.
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Affiliation(s)
- M Khosravani
- Department of Exercise Physiology, Islamic Azad University, Shiraz Branch, Shiraz, Iran.
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Akbari M, Heidarieh M, Mirvafeghi A, Farahmand H, Sheikhzadeh H, Najafi Hajivar E. Effect of dietary Ergosan and Hilyses on growth performance, hematological variables and immune response in rainbow trout (Oncorhynchus mykiss). ACTA ACUST UNITED AC 2015. [DOI: 10.18869/acadpub.ijaah.1.1.1] [Citation(s) in RCA: 4] [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: 11/09/2022]
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Tayebee R, Amini MM, Akbari M, Aliakbari A. A novel inorganic–organic nanohybrid material H4SiW12O40/pyridino-MCM-41 as efficient catalyst for the preparation of 1-amidoalkyl-2-naphthols under solvent-free conditions. Dalton Trans 2015; 44:9596-609. [DOI: 10.1039/c5dt00368g] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new inorganic–organic nanohybrid material was prepared and performed as an efficient catalyst for the one-pot multi-component synthesis of different substituted 1-amidoalkyl-2-naphthols under solvent-free conditions.
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Affiliation(s)
- R. Tayebee
- Department of Chemistry
- School of Sciences
- Hakim Sabzevari University
- Sabzevar 96179-76487
- Iran
| | - M. M. Amini
- Department of Chemistry
- Shahid Beheshti University
- Tehran 1983963113
- Iran
| | - M. Akbari
- Department of Chemistry
- School of Sciences
- Hakim Sabzevari University
- Sabzevar 96179-76487
- Iran
| | - A. Aliakbari
- Department of Chemistry
- Shahid Beheshti University
- Tehran 1983963113
- Iran
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Emamalizadeh B, Movafagh A, Akbari M, Kazeminasab S, Fazeli A, Motallebi M, Shahidi GA, Petramfar P, Mirfakhraie R, Darvish H. RIT2 , a susceptibility gene for Parkinson's disease in Iranian population. Neurobiol Aging 2014; 35:e27-e28. [DOI: 10.1016/j.neurobiolaging.2014.07.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 06/23/2014] [Accepted: 07/12/2014] [Indexed: 01/15/2023]
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Nasr Z, Etemadifar M, Sayahi F, Toghianifar N, Akbari M, Esfahani M. Effects of recurrent fasting on fatigue and quality of life in patients with multiple sclerosis. Mult Scler Relat Disord 2014. [DOI: 10.1016/j.msard.2014.09.173] [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: 11/25/2022]
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Akbari M, Fashandi M. On characterization results based on the number of observations near the k-records. STATISTICS-ABINGDON 2014. [DOI: 10.1080/02331888.2013.799671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Tamura T, Akbari M, Kimura K, Kimura D, Yui K. Flt3 ligand treatment modulates parasitemia during infection with rodent malaria parasites via MyD88- and IFN-γ-dependent mechanisms. Parasite Immunol 2014; 36:87-99. [PMID: 24400637 DOI: 10.1111/pim.12085] [Citation(s) in RCA: 5] [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] [Received: 05/22/2013] [Accepted: 10/21/2013] [Indexed: 12/13/2022]
Abstract
We previously showed that treatment of mice with the Flt3 ligand (Flt3L) prevents development of lethal experimental cerebral malaria and inhibits parasitemia during Plasmodium berghei ANKA (PbA) infection. In this study, we investigated the mechanisms underlying the reduction of parasitemia in Flt3L-treated mice. Studies using gene knockout mice and antibody treatment indicated that the anti-parasitemia effect of Flt3L was mediated by innate immune system and was dependent on MyD88, IFN-γ, IL-12 and natural killer (NK) cells. The number of NK cells and their ability to produce IFN-γ was enhanced in Flt3L-treated mice. Phagocytic activity of splenocytes was increased in Flt3L-treated mice after PbA infection when compared with that in untreated mice, and this activity was mainly mediated by the accumulation of F4/80(mid) CD11b(+) cells in the spleen. In both MyD88(-/-) and IFN-γ(-/-) mice, the proportion of F4/80(mid) CD11b(+) cells was not increased in the spleen of Flt3L-treated mice after infection. These correlations suggest that NK cells produce IFN-γ in Flt3L-treated mice, and accumulation of F4/80(mid) CD11b(+) cells in the spleen is promoted by an IFN-γ -dependent manner, culminating in the inhibition of parasitemia. These findings imply that Flt3L promotes effective innate immunity against malaria infection mediated by interplay among varieties of innate immune cells.
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Affiliation(s)
- T Tamura
- Division of Immunology, Department of Molecular Microbiology and Immunology, Graduate School of Biomedical Sciences, Nagasaki University, Sakamoto, Nagasaki, Japan; Global COE Program, Nagasaki University, Sakamoto, Nagasaki, Japan
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Oryan A, Akbari M, Moazeni M, Amrabadi OR. Cerebral and non-cerebral coenurosis in small ruminants. Trop Biomed 2014; 31:1-16. [PMID: 24862039] [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: 06/03/2023]
Abstract
Cerebral coenurosis is caused by Coenurus cerebralis, the larval stage of Taenia multiceps. The metacestode causes severe lesions in the brain and spinal cord of the intermediate host, so-called "gid" or "stagger" disease. Whereas, the non-cerebral coenurosis caused by Coenurus gaigeri, the larval stage of Taenia gaigeri, particularly affects goats. The cyst form of the Taenia gaigeri is found in intramuscular and subcutaneous tissues. The difference in the sequence of mitochondrial genes of cox1 and nadI and also other variations reported for clinical, morphological and pathological aspects in coenurosis lead to the hypothesis that there is genetic intraspecific variability within this species, such as in other members of the genus Taenia. Nevertheless, it has been shown that sheep and goats have been infected by both cerebral and non-cerebral coenurosis and it has been suggested that such cerebral and non-cerebral metacestodes may belong to different species of Taenia which are host specific for these hosts.
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Affiliation(s)
- A Oryan
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran, P.O. Box: 71345-1731
| | - M Akbari
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran, P.O. Box: 71345-1731
| | - M Moazeni
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran, P.O. Box: 71345-1731
| | - O R Amrabadi
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran, P.O. Box: 71345-1731
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Naghdi S, Ansari NN, Akbari M, Jalaie S, Khalifeloo M. The short-term effects of plantar vibration therapy on the balance of patients after stroke. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.1972] [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: 11/15/2022]
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Akbari M, Zarch HH, Movagharipour F, Ahrari F. A pilot study of a modified radiographic technique for detecting early proximal cavities. Caries Res 2013; 47:612-6. [PMID: 24061285 DOI: 10.1159/000355297] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Accepted: 08/25/2013] [Indexed: 11/19/2022] Open
Abstract
Diagnosing the necessity of cavity preparation in demineralized proximal areas has been considered as a challenge in restorative treatment planning. The purpose of this study was to investigate the clinical performance of a modified radiographic technique for the detection of proximal cavities. The sample consisted of 44 proximal surfaces in 38 dental students. The patients had radiolucent proximal lesions restricted to the inner half of enamel or the outer third of dentine in bitewing radiographs, and there was doubt regarding the presence or absence of cavities in the approximal areas. The suspected surfaces were then examined by secondary bitewing radiographs which were taken after pressing radiopaque material into the proximal areas. Finally, orthodontic elastic separators were placed in the contact areas to provide enough space for direct visual and tactile examination, thus detecting any proximal cavity (reference standard). The sensitivity, specificity and accuracy of the modified bitewing radiography were calculated against the reference standard. Overall, 7 surfaces presented caries cavities according to the reference standard. All proximal radiolucencies observed in the inner half of enamel and 46% of those extended to the outer third of dentine were not cavitated when evaluated by direct visual and tactile examination. The sensitivity, specificity and accuracy of bitewing radiography with opaque material for detecting proximal cavities (n = 7) were 86, 100 and 98%, respectively. The tested radiographic technique displayed good validity in this pilot study for detecting proximal cavities in posterior teeth and should be further investigated.
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Affiliation(s)
- M Akbari
- Dental Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
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Darvish H, Movafagh A, Omrani MD, Firouzabadi SG, Azargashb E, Jamshidi J, Khaligh A, Haghnejad L, Naeini NS, Talebi A, Heidari-Rostami HR, Noorollahi-Moghaddam H, Karkheiran S, Shahidi GA, Paknejad SMH, Ashrafian H, Abdi S, Kayyal M, Akbari M, Pedram N, Emamalizadeh B. Detection of copy number changes in genes associated with Parkinson's disease in Iranian patients. Neurosci Lett 2013; 551:75-8. [PMID: 23880019 DOI: 10.1016/j.neulet.2013.07.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 06/27/2013] [Accepted: 07/05/2013] [Indexed: 01/23/2023]
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disorder, after Alzheimer's disease. Genomic rearrangements are common mutations reported in PD patients. In this study, we investigated the prevalence of genomic rearrangements in a total of 232 Iranian PD patients, out of which 102 were sporadic early-onset (age-at-onset ≤ 45 years) and 51 had a family history. We used multiplex ligation-dependent probe amplification (MLPA) method to detect exon dosage changes. Two new improved probe kits, SALSA P051 and P052, were used and altogether α-synuclein, parkin, UCHL1, PINK1, DJ-1, LRRK2, GCH1, ATP13A2, CAV1, CAV2, LPA and TNFRSF9 genes were analyzed. Exon or whole-gene rearrangements were identified in 14 (13.7%) sporadic early-onset PD patients in parkin, α-synuclein and PINK1. Of familial PD patients 46 cases from 18 families (35.3%) showed exon or whole-gene rearrangements in parkin, α-synuclein, PINK1, DJ-1, and ATP13A2 genes. All changes were verified by quantitative PCR (qPCR). Novel mutations and unusual clinical features are reported in this study. Mutations in parkin were the predominant genetic cause in both early-onset and familial PD groups. Also the mutations observed in family PD group are more in number and diversity than the sporadic early-onset PD group.
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Taherikalani M, Sekawi Z, Azizi-Jalilian F, Keshavarz B, Soroush S, Akbari M, Emaneini M, Asadollahi P, Maleki MH, Mohammadi S, Pakzad I, Delpisheh A, Asadollahi K. Distribution of extended spectrum beta-lactamase resistance genes among nosocomial imipenem resistant A. Baumannii strains harboring BLAoxa-23 carbapenemases isolated from Ilam and Tehran. J BIOL REG HOMEOS AG 2013; 27:883-889. [PMID: 24152853] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Antimicrobial susceptibility and ESBLs genes of 42 imipenem resistant A. baumannii carried out by DDST and PCR. The most antimicrobial agents against A. baumannii strains, harboring blaOXA-23-like carbapenemases, were meropenem (33.4 percent), piperacillin-tazobactam (23.9 percent), ceftazidime (14.3 percent) and gatifoxacin (19.1 percent), respectively. All the 42 isolates harbored the blaTEM gene, but the bla SHV and VEB genes were not present among all the isolates. With the exception of seven isolates, all the A. baumannii strains harbor blaTEM showed ESBL positivity in DDST. The result of this study show that resistance against antimicrobial agents, especially carbapenems, has increased and that blaTEM harboring A. baumannii strains can be help the blaOXA-like carbapenemase genes to code for resistance against carbapenem antibiotics.
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Affiliation(s)
- M Taherikalani
- Department of Medical Microbiology and Parasitology, Faculty of Medicine and Health Sciences, University of Putra Malaysia
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40
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Feuerstein JD, Akbari M, Gifford AE, Cullen G, Leffler DA, Sheth SG, Cheifetz AS. Systematic review: the quality of the scientific evidence and conflicts of interest in international inflammatory bowel disease practice guidelines. Aliment Pharmacol Ther 2013; 37:937-46. [PMID: 23550536 DOI: 10.1111/apt.12290] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Revised: 02/27/2013] [Accepted: 03/07/2013] [Indexed: 12/17/2022]
Abstract
BACKGROUND Guidelines published by the international gastroenterology societies establish standards of care and seek to improve patient outcomes. AIM We examined inflammatory bowel disease guidelines (IBD) for quality of evidence, methods of grading evidence and conflicts of interest (COI). METHODS All 182 guidelines published by the American College of Gastroenterology, American Gastroenterological Association, British Society of Gastroenterology, Canadian Association of Gastroenterology, Crohn's and Colitis Foundation of America and European Crohn's and Colitis Organisation as of 27 September 2012 were reviewed. Nineteen IBD guidelines were found. RESULTS Eighty-nine per cent (n = 17/19) of the guidelines graded the levels of evidence using seven different systems. Of the 1070 recommendations reviewed, 23% (n = 249) cited level A evidence; 28% (n = 302) level B; 36% (n = 383) level C and 13% (n = 136) level D. The mean age of the guidelines was 4.2 years. In addition, 61% (n = 11/19) of the guidelines failed to comment on COI. All eight articles commenting on COI had conflicts with 81% (n = 92/113) of authors reported an average 11.7 COI. Lastly, there were variations in the recommendations between societies. CONCLUSIONS Nearly half the IBD guideline recommendations are based on expert opinion or no evidence. Majority of the guidelines fail to disclose any COI, and when commenting, all have numerous COI. Furthermore, the guidelines are not updated frequently and there is a lack of consensus between societal guidelines. This study highlights the critical need to centralize and redesign the guidelines development process.
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Affiliation(s)
- J D Feuerstein
- Department of Medicine and Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
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Lahiff C, Safaie P, Awais A, Akbari M, Gashin L, Sheth S, Lembo A, Leffler D, Moss AC, Cheifetz AS. The Crohn's disease activity index (CDAI) is similarly elevated in patients with Crohn's disease and in patients with irritable bowel syndrome. Aliment Pharmacol Ther 2013; 37:786-94. [PMID: 23432394 DOI: 10.1111/apt.12262] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2012] [Revised: 01/07/2013] [Accepted: 02/03/2013] [Indexed: 12/16/2022]
Abstract
BACKGROUND While the Crohn's disease activity index (CDAI) is the gold standard for defining clinical endpoints in Crohn's disease (Crohn's) clinical trials, its ability to distinguish symptoms due to inflammation from those that are non-inflammatory has been questioned. AIM To compare CDAI scores in patients with Crohn's and those with Irritable Bowel Syndrome (IBS). METHODS This was a prospective, cross-sectional cohort study of 91 patients with either Crohn's (n = 44) or IBS (n = 47). Total CDAI and individual component scores were recorded and comparisons were made between Crohn's and IBS patients. RESULTS Mean CDAI scores were higher in the IBS patients (183 vs. 157, P = 0.1). Sixty-two per cent (n = 29) of IBS patients had CDAI scores greater than 150. Mean CDAI haematocrit score (35.9 vs. 23.0, P = 0.02) and CRP level (6.8 vs. 2.0, P = 0.002) were higher in the Crohn's group. Analysis of CDAI sub-scores demonstrated that IBS patients had significantly higher pain (mean 1.7 vs. 0.8, P = 0.0007) and well-being scores (mean 1.2 vs. 0.8, P = 0.04) relative to patients with Crohn's. Specifically evaluating patients with CDAI greater than 150 (n = 51), IBS patients had higher pain sub-scores (mean 2.4 vs. 1.4, P = 0.002), whereas patients with Crohn's had higher CRP (mean 8.4 vs. 1.8, P = 0.001). CONCLUSIONS Our study demonstrates that the CDAI does not discriminate patients with symptoms due to active Crohn's from patients with IBS. Patients with IBS can have CDAI scores in the clinically meaningful range. Objective measures, such as CDAI haematocrit score and CRP, are more specific markers of inflammation.
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Affiliation(s)
- C Lahiff
- Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
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Alborzi AR, Molayan PH, Akbari M. Prevalence of Linguatula serrata Nymphs in Mesenteric Lymph Nodes of Cattle and Buffaloes Slaughtered in Ahvaz Abattoir, Iran. Iran J Parasitol 2013; 8:327-32. [PMID: 23914248 PMCID: PMC3724160] [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] [Received: 01/20/2013] [Accepted: 04/25/2013] [Indexed: 11/20/2022]
Abstract
BACKGROUND Linguatula serrata, one of the parasitic zoonoses, inhabits the canine respiratory system (final hosts). The objective of this study was to determine the prevalence rate of L. serrata nymphs in mesenteric lymph nodes (MLNs) of cattle and buffaloes (intermediate hosts) that were processed in the Ahvaz, Iran abattoir. METHODS During November 2010 to March 2011, 223 animals (119 cattle and 104 buffaloes), in different sex and three age groups (<2, 2-< 3 and 3-> 3 years old) were sampled randomly at Ahvaz abattoir. Up to 35 grams of their mesenteric lymph nodes were examined separately for nymphal stages of L. serrata by digesting the samples with acid- pepsin method, collected the nymphs and counted under stereomicroscope. RESULTS Overall 37(16.6%) of 223 animals were infected with L. serrata nymphs in their mesenteric lymph nodes. Prevalence of the infection in cattle and buffaloes were 16.8% and 16.3% respectively. The number of collected nymphs of MLNs was ranged from 1 to 16. No significant differences were seen in the infection rates between males and females (sexes) and age groups in the cattle and buffaloes (P <0.05). CONCLUSION Linguatula serrata has an active life cycle in the studied area and a zoonotic potential for transmission between animal and human. Avoiding use of raw MLNs to dogs can help reduce the infection.
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Affiliation(s)
- AR Alborzi
- Department of Pathobiology, School of Veterinary Medicine, Shahid Chamran University of Ahvaz, Iran,Corresponding author:
| | - P Haddad Molayan
- Department of Veterinary Parasitology, School of Veterinary Medicine, Shahid Chamran University of Ahvaz, Iran
| | - M Akbari
- Department of Veterinary Parasitology, School of Veterinary Medicine, Shahid Chamran University of Ahvaz, Iran
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Akbari M, Dadadashian F, Kordestani SS, Xue M, Jackson CJ. Enzymatic modification of regenerated cellulosic fabrics to improve bacteria sorption properties. J Biomed Mater Res A 2012. [PMID: 23184868 DOI: 10.1002/jbm.a.34478] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
This research investigates the effect of enzymatic treatment of two different regenerated cellulosic fibers (Lyocell and viscose) on their ability of bacteria sorption from an aqueous suspension. The sorption of Escherichia coli (E. coli, Gram negative) and Staphylococcus aureus (S. aureus, Gram positive) cells by treated Lyocell and viscose fabrics were determined by measuring the optical density (OD) of the remaining bacteria suspension after removal of the fabric samples using spectrometry. Fourier transform infrared spectroscopy and scanning electron microscopy (SEM) were utilized to investigate structural and morphological changes of the enzyme treated samples. The result showed that the moisture content and crystallinity of both viscose and Lyocell samples increased after enzymatic treatment. Comparing the results of OD measurements indicated that enzymatic treatment of cellulosic samples significantly increased the bacteria absorption properties compared to those untreated samples. However, treated samples showed different ranges of sorption ability with different kinds of bacteria. The maximum bacteria sorption of 38% and 37% of E. coli bacteria from an aqueous suspension was found for the treated viscose and Lyocell samples compared with only 20% and 10% of the untreated viscose and Lyocell samples, respectively. It was also found that S. aureus sorption of cellulose-treated viscose and Lyocell fabrics from a bacterial suspension could significantly improve up to 33% compared with only 5% of untreated samples. Furthermore, SEM micrographs confirmed that bacterial sorption of the cellulose-treated samples were effectively improved in terms of their uniform sorption on the fibers surface.
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Affiliation(s)
- M Akbari
- Textile Engineering Department, Center of Excellence on Functional Fibrous Structure and Environmental Enhancement, Amirkabir University of Technology (Tehran polytechnic), Tehran, Iran
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Akbari M, Minuchehr A, Zolfaghari A, Khoshahval F. Impact assessment of upscattering on resonance calculation using improved ultrafine energy group method. ANN NUCL ENERGY 2012. [DOI: 10.1016/j.anucene.2012.05.021] [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: 11/29/2022]
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Gheibi A, Kazemi M, Baradaran A, Akbari M, Salehi M. Study of promoter methylation pattern of 14-3-3 sigma gene in normal and cancerous tissue of breast: A potential biomarker for detection of breast cancer in patients. Adv Biomed Res 2012; 1:80. [PMID: 23326810 PMCID: PMC3544103 DOI: 10.4103/2277-9175.102990] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2012] [Accepted: 03/12/2012] [Indexed: 12/25/2022] Open
Abstract
Background: In recent years, DNA methylation as a main epigenetic modification in human cancer is found as a promising biomarker in early detection of breast cancer. Possible applications of numerous hypermethylated genes have been reported in diagnosis of breast cancer but there has been a little comprehensive study on the clinical usefulness of these genes in breast cancer. The aim of the present study was to investigate the promoter methylation status of 14-3-3 sigma gene with the goal of developing a diagnostic application in breast cancer. Materials and Methods: Totally 40 cases of cancerous and noncancerous tissues were studied. DNA was extracted from tissue samples, and promoter methylation pattern was determined by using methylation-specific polymerase chain reaction. Results: Methylation pattern of 14-3-3 sigma promoter significantly differed between control and malignant breast tissues (P = 0.001), and there was no remarkable correlation between methylation and age (P > 0.05). Conclusion: The relationship of promoter methylation of 14-3-3 sigma with development of breast cancer found in this study and confirmed the results of previous reports suggests that we can provide the foundation for possible application of 14-3-3 sigma as a potential biomarker for early detection and monitoring disease status.
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Affiliation(s)
- A Gheibi
- Department of Biomedical Sciences, Division of Genetics, Isfahan, Iran
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46
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Moussavi-Najarkola SA, Khavanin A, Mirzaei R, Salehnia M, Muhammadnejad A, Akbari M. Noise-induced Outer Hair Cells' Dysfunction and Cochlear Damage in Rabbits. Iran Red Crescent Med J 2012; 14:647-56. [PMID: 23285417 PMCID: PMC3518982] [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: 11/24/2011] [Accepted: 06/08/2012] [Indexed: 12/03/2022]
Abstract
BACKGROUND Outer hair cells' (OHCs') dysfunctions as the extent of temporary and permanent threshold shifts (TTS and PTS) and cochlear damage were assessed in rabbits exposed to continuous noise METHODS Twelve New Zealand white rabbits were studied in noise (N) (n=6; exposed to continuous noise; 95 dB SPL, 500-8000 Hz for 8 h per day during 5 consecutive days) and control (C) (n=6; not exposed to noise). OHCs' functions were assessed by distortion product otoacoustic emission (DPOAE) level (Ldp) measurements in different periods and comparing TTS and PTS. Animals were anaesthetized by CO2; cochleae were extracted, fixed in 10% formaldehyde for 48 hours, decalcified by 10% nitric acid for 24 hours, and dehydrated, embedded, sectioned 5 µm thickness and stained by Hematoxylin and Eosin for light microscopy. RESULTS The most and least Ldp or TTS or PTS were related to 5888.50 Hz and 588.00 Hz respectively in noise subjected rabbits (P<0.05). TTS and PTS were decreased up to 17.79 dB and to 16.01 dB respectively. TTS were more than PTS over all test frequencies, especially at 5888.50 Hz (P<0.05). Ldp or TTS or PTS were found to be equal across ears (P>0.05). Severely vacuolated OHCs, pyknotic IHCs, swollen SC, and slightly thickened BM were found. CONCLUSION Continuous noise extensively led to OHCs' dysfunctions as decreased Ldp (both TTS and PTS) and highly damage to cochlea.
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Affiliation(s)
- S A Moussavi-Najarkola
- Dept. of Occupational Health, School of Medical Sciences, Tarbiat Modares University (TMU), Tehran, Iran
| | - A Khavanin
- Dept. of Occupational Health, School of Medical Sciences, Tarbiat Modares University (TMU), Tehran, Iran,Correspondence: Ali Khavanin, Department of Occupational Health, School of Medical Sciences, Tarbiat Modares University (TMU), Jalal Aal Ahmad Highway, Nasr Bridge, Tehran, Iran. Tel.: 982182883849, Fax: 982182883825, E-mail:
| | - R Mirzaei
- Dept. of Occupational Health, Health promotion research center, Zahedan University of Medical Sciences (ZUMS), Zahedan, Iran
| | - M Salehnia
- Dept. of Anatomical Sciences, School of Medical Sciences, Tarbiat Modares University (TMU), Tehran, Iran
| | - A Muhammadnejad
- Cancer Research Center, Iran Cancer Institute, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - M Akbari
- Dept. of Audiology, School of Rehabilitation, Iran University of Medical Sciences (IUMS), Tehran, Iran
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Saberi A, Roudbary S, Hatamian H, Akbari M, Sedigh-Rahim-Abadi MR. Die Häufigkeit und prognostische Aussagekraft symptomatischer Anfälle bei (sekundär-)progredienten MS-Formen. Akt Neurol 2012. [DOI: 10.1055/s-0032-1323698] [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: 10/27/2022]
Affiliation(s)
- A. Saberi
- Poursina Academic Hospital of Medical University of Guilan, Iran
| | - S. Roudbary
- Poursina Academic Hospital of Medical University of Guilan, Iran
| | - H. Hatamian
- Poursina Academic Hospital of Medical University of Guilan, Iran
| | - M. Akbari
- Poursina Academic Hospital of Medical University of Guilan, Iran
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Moussavi-Najarkola SA, Khavanin A, Mirzaei R, Salehnia M, Muhammadnejad A, Akbari M. Temporary and permanent level shifts in distortion product otoacoustic emissions following noise exposure in an animal model. Int J Occup Environ Med 2012; 3:145-152. [PMID: 23022864] [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] [Received: 04/12/2012] [Accepted: 05/06/2012] [Indexed: 06/01/2023]
Abstract
BACKGROUND Noise-induced hearing loss (NIHL) is one of the most common occupational illnesses. Most of the studies on NIHL were conducted at high noise levels that people are rarely exposed to but in industries. The function of the outer hair cells (OHCs) is impaired after exposure to industrial noise. Distortion product otoacoustic emissions (DPOAEs) are useful in examination of noise-induced level shifts. OBJECTIVE To assess the function of OHCs by DPOAE temporary and permanent level shifts (TLSdp and PLSdp) in rabbits exposed to white noise at realistic levels typically found in industrial settings over a broad range of frequencies. METHODS 12 albino rabbits were divided into two groups: the experimental group rabbits which were exposed to 95 dB SPL white noise at 500-8000 Hz for 8 hrs/day for 5 consecutive days, and the control group rabbits with no exposure to noise. The function of OHCs was examined by DPOAE level (Ldp) in different occasions. The study groups were compared for DPOAE temporary and permanent level shifts (TLSdp and PLSdp) to assess the effect of noise on OHCs function. RESULTS Noise-induced DPOAE levels (Ldp) were decreased up to 20.65 dB (on day 8) and 18.93 dB (on day 11) at 5888.50 Hz (p = 0.081). TLSdp and PLSdp were significantly decreased up to 17.99 dB and 16.27 dB, respectively in the experimental group. The most and least Ldp were significantly different (p<0.05); they occurred at 5888.50 and 588.00 Hz, respectively. There were significant differences between temporary and permanent threshold shift at various frequencies (p<0.05). These differences were mainly related to 5888.50 Hz compared to other frequencies in each ear (p<0.05). CONCLUSION DPOAEs are an attractive tool for obtaining information about small temporary or permanent threshold shifts, even when the pure tone audiogram is normal.
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Affiliation(s)
- S A Moussavi-Najarkola
- Department. of Occupational Health, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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Akbari M, Khayamzadeh M, Haghighatkhah H, Shafiee M. 64P Mammography and Ultrasonography Reports Compared with Tissue Diagnosis: An Evidence-Based Study, Iran, 2010. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(19)65717-0] [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: 10/25/2022] Open
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50
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Khayamzadeh M, Salmanian R, Aboulhasani F, Moradi M, Akbari M. 116P Estimation of Breast Cancer Burden in Iran and its Comparison with Eastern Mediterranean Region and the World. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(19)65774-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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