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Moein S, Ahmadbeigi N, Adibi R, Kamali S, Moradzadeh K, Nematollahi P, Nardi NB, Gheisari Y. Regenerative potential of multinucleated cells: bone marrow adiponectin-positive multinucleated cells take the lead. Stem Cell Res Ther 2023; 14:173. [PMID: 37403181 DOI: 10.1186/s13287-023-03400-w] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 06/13/2023] [Indexed: 07/06/2023] Open
Abstract
BACKGROUND Polyploid cells can be found in a wide evolutionary spectrum of organisms. These cells are assumed to be involved in tissue regeneration and resistance to stressors. Although the appearance of large multinucleated cells (LMCs) in long-term culture of bone marrow (BM) mesenchymal cells has been reported, the presence and characteristics of such cells in native BM and their putative role in BM reconstitution following injury have not been fully investigated. METHODS BM-derived LMCs were explored by time-lapse microscopy from the first hours post-isolation to assess their colony formation and plasticity. In addition, sub-lethally irradiated mice were killed every other day for four weeks to investigate the histopathological processes during BM regeneration. Moreover, LMCs from GFP transgenic mice were transplanted to BM-ablated recipients to evaluate their contribution to tissue reconstruction. RESULTS BM-isolated LMCs produced mononucleated cells with characteristics of mesenchymal stromal cells. Time-series inspections of BM sections following irradiation revealed that LMCs are highly resistant to injury and originate mononucleated cells which reconstitute the tissue. The regeneration process was synchronized with a transient augmentation of adipocytes suggesting their contribution to tissue repair. Additionally, LMCs were found to be adiponectin positive linking the observations on multinucleation and adipogenesis to BM regeneration. Notably, transplantation of LMCs to myeloablated recipients could reconstitute both the hematopoietic system and BM stroma. CONCLUSIONS A population of resistant multinucleated cells reside in the BM that serves as the common origin of stromal and hematopoietic lineages with a key role in tissue regeneration. Furthermore, this study underscores the contribution of adipocytes in BM reconstruction.
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Affiliation(s)
- Shiva Moein
- Regenerative Medicine Research Center, Isfahan University of Medical Sciences, Isfahan, 8174673461, Iran
- Department of Genetics and Molecular Biology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Naser Ahmadbeigi
- Gene Therapy Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Rezvan Adibi
- Regenerative Medicine Research Center, Isfahan University of Medical Sciences, Isfahan, 8174673461, Iran
- Department of Genetics and Molecular Biology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sara Kamali
- Regenerative Medicine Research Center, Isfahan University of Medical Sciences, Isfahan, 8174673461, Iran
| | - Kobra Moradzadeh
- Gene Therapy Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Pardis Nematollahi
- Department of Pathology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Nance Beyer Nardi
- Institute of Cardiology of Rio Grande do Sul, Av Princesa Isabel 370, Porto Alegre, RS, 90620-001, Brazil
| | - Yousof Gheisari
- Regenerative Medicine Research Center, Isfahan University of Medical Sciences, Isfahan, 8174673461, Iran.
- Department of Genetics and Molecular Biology, Isfahan University of Medical Sciences, Isfahan, Iran.
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Kamali S, Yavarmanesh M, Habibi Najafi MB, Koocheki A. Development of whey protein concentrate/pullulan composite films containing bacteriophage A511: Functional properties and anti-Listerial effects during storage. Food Packag Shelf Life 2022. [DOI: 10.1016/j.fpsl.2022.100902] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Pussi K, Louzguine-Luzgin DV, Nokelaineni J, Barbiellini B, Kothalawala V, Ohara K, Yamada H, Bansil A, Kamali S. Atomic structure of an FeCrMoCBY metallic glass revealed by high energy x-ray diffraction. J Phys Condens Matter 2022; 34:285301. [PMID: 35472853 DOI: 10.1088/1361-648x/ac6a9a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 04/26/2022] [Indexed: 06/14/2023]
Abstract
Amorphous bulk metallic glasses with the composition Fe48Cr15Mo14C15B6Y2have been of interest due to their special mechanical and electronic properties, including corrosion resistance, high yield-strength, large elasticity, catalytic performance, and soft ferromagnetism. Here, we apply a reverse Monte Carlo technique to unravel the atomic structure of these glasses. The pair-distribution functions for various atomic pairs are computed based on the high-energy x-ray diffraction data we have taken from an amorphous sample. Monte Carlo cycles are used to move the atomic positions until the model reproduces the experimental pair-distribution function. The resulting fitted model is consistent with ourab initiosimulations of the metallic glass. Our study contributes to the understanding of functional properties of Fe-based bulk metallic glasses driven by disorder effects.
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Affiliation(s)
- K Pussi
- Physics Department, School of Engineering Science, LUT University, 53851 Lappeenranta, Finland
- Natural Resources Institute Finland (Luke), Production Systems, 00790 Helsinki, Finland
| | - D V Louzguine-Luzgin
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai 980-8577, Japan
- MathAM-OIL, National Institute of Advanced Industrial Science and Technology (AIST), Sendai 980-8577, Japan
| | - J Nokelaineni
- Physics Department, School of Engineering Science, LUT University, 53851 Lappeenranta, Finland
- Physics Department, Northeastern University, Boston, MA 02115, United States of America
| | - B Barbiellini
- Physics Department, School of Engineering Science, LUT University, 53851 Lappeenranta, Finland
- Physics Department, Northeastern University, Boston, MA 02115, United States of America
| | - V Kothalawala
- Physics Department, School of Engineering Science, LUT University, 53851 Lappeenranta, Finland
| | - K Ohara
- Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - H Yamada
- Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - A Bansil
- Physics Department, Northeastern University, Boston, MA 02115, United States of America
| | - S Kamali
- Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee Space Institute, Tullahoma, TN 37388, United States of America
- Department of Physics and Astronomy, Middle Tennessee State University, Murfreesboro, TN 37132, United States of America
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Kamali S, Tabatabaei SM, Arefi MM, Yin S. Prescribed Performance Quantized Tracking Control for a Class of Delayed Switched Nonlinear Systems With Actuator Hysteresis Using a Filter-Connected Switched Hysteretic Quantizer. IEEE Trans Neural Netw Learn Syst 2022; 33:61-74. [PMID: 33074825 DOI: 10.1109/tnnls.2020.3027492] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This article proposes a prescribed adaptive backstepping scheme with new filter-connected switched hysteretic quantizer (FCSHQ) for switched nonlinear systems with nonstrict-feedback structure and time-delay. The system model is subjected to unknown functions, unknown delays, and unknown Bouc-Wen hysteresis nonlinearity. The coexistence of quantized input and actuator hysteresis may deteriorate the shape of hysteresis loop and, consequently, fail to guarantee the stability. To deal with this issue, a new FCSHQ is introduced to smooth the input hysteresis. This adaptive filter also provides us a degree of freedom at choosing the desired communication rate. The repetitive differentiations of virtual control laws and existing a lot of learning parameters in the neural network (NN)-based controller may result in an algebraic loop problem and high computational time, especially in a nonstrict-feedback form. This challenge is eased by the key advantage of NNs' property where the upper bound of the weight vector is employed. Then, by an appropriate Lyapunov-Krasovskii functional, a common Lyapunov function is presented for all subsystems. It is shown that the proposed controller ensures the predefined output tracking accuracies and boundedness of the closed-loop signals under any arbitrary switching. Finally, the proposed control scheme is verified on a practical example where simulation results demonstrate the effectiveness of the proposed scheme.
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Kamali S. Introduction to the Special Issue: the Racial Wealth Gap. J Econ Race Policy 2021; 4:113-114. [PMID: 35299884 PMCID: PMC8374031 DOI: 10.1007/s41996-021-00088-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 07/14/2021] [Accepted: 07/20/2021] [Indexed: 11/26/2022]
Affiliation(s)
- Sara Kamali
- Orfalea Center for Global & International Studies, MS 2150, University of California, Santa Barbara, Santa Barbara, CA 93106-2150 USA
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Pussi K, Barbiellini B, Ohara K, Yamada H, Dwivedi J, Bansil A, Gupta A, Kamali S. Atomic arrangements in an amorphous CoFeB ribbon extracted via an analysis of radial distribution functions. J Phys Condens Matter 2021; 33:395801. [PMID: 34233320 DOI: 10.1088/1361-648x/ac1238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 07/07/2021] [Indexed: 06/13/2023]
Abstract
We discuss the atomic structure of amorphous ferromagnetic FeCoB alloys, which are used widely in spintronics applications. Specifically, we obtain the pair-distribution functions for various atomic pairs based on high-energy x-ray diffraction data taken from an amorphous Co20Fe61B19specimen. We start our reverse Monte Carlo cycles to determine the disordered structure with a two-phase model in which a small amount of cobalt is mixed with Fe23B6as a second phase. The structure of the alloy is found to be heterogeneous, where the boron atoms drive disorder through the random occupation of the atomic network. Our analysis also indicates the presence of small cobalt clusters that are embedded in the iron matrix and percolating the latter throughout the structure. This morphology can explain the enhanced spin polarization observed in amorphous magnetic materials.
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Affiliation(s)
- K Pussi
- Physics Department, School of Engineering Science, LUT University, 53851 Lappeenranta, Finland
| | - B Barbiellini
- Physics Department, School of Engineering Science, LUT University, 53851 Lappeenranta, Finland
- Physics Department, Northeastern University, Boston, MA 02115, United States of America
| | - K Ohara
- Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - H Yamada
- Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - J Dwivedi
- School of Physics, Devi Ahilya University, Indore 452001, India
| | - A Bansil
- Physics Department, Northeastern University, Boston, MA 02115, United States of America
| | - A Gupta
- Department of Physics, University of Petroleum and Energy Studies, Bidholi, Dehradun-248007, India
| | - S Kamali
- Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee Space Institute, Tullahoma, TN 37388, United States of America
- Department of Physics and Astronomy, Middle Tennessee State University, Murfreesboro, TN 37132, United States of America
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Sparapani S, Millet-Boureima C, Oliver J, Mu K, Hadavi P, Kalostian T, Ali N, Avelar CM, Bardies M, Barrow B, Benedikt M, Biancardi G, Bindra R, Bui L, Chihab Z, Cossitt A, Costa J, Daigneault T, Dault J, Davidson I, Dias J, Dufour E, El-Khoury S, Farhangdoost N, Forget A, Fox A, Gebrael M, Gentile MC, Geraci O, Gnanapragasam A, Gomah E, Haber E, Hamel C, Iyanker T, Kalantzis C, Kamali S, Kassardjian E, Kontos HK, Le TBU, LoScerbo D, Low YF, Mac Rae D, Maurer F, Mazhar S, Nguyen A, Nguyen-Duong K, Osborne-Laroche C, Park HW, Parolin E, Paul-Cole K, Peer LS, Philippon M, Plaisir CA, Porras Marroquin J, Prasad S, Ramsarun R, Razzaq S, Rhainds S, Robin D, Scartozzi R, Singh D, Fard SS, Soroko M, Soroori Motlagh N, Stern K, Toro L, Toure MW, Tran-Huynh S, Trépanier-Chicoine S, Waddingham C, Weekes AJ, Wisniewski A, Gamberi C. The Biology of Vasopressin. Biomedicines 2021; 9:89. [PMID: 33477721 PMCID: PMC7832310 DOI: 10.3390/biomedicines9010089] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 12/29/2020] [Accepted: 01/06/2021] [Indexed: 02/07/2023] Open
Abstract
Vasopressins are evolutionarily conserved peptide hormones. Mammalian vasopressin functions systemically as an antidiuretic and regulator of blood and cardiac flow essential for adapting to terrestrial environments. Moreover, vasopressin acts centrally as a neurohormone involved in social and parental behavior and stress response. Vasopressin synthesis in several cell types, storage in intracellular vesicles, and release in response to physiological stimuli are highly regulated and mediated by three distinct G protein coupled receptors. Other receptors may bind or cross-bind vasopressin. Vasopressin is regulated spatially and temporally through transcriptional and post-transcriptional mechanisms, sex, tissue, and cell-specific receptor expression. Anomalies of vasopressin signaling have been observed in polycystic kidney disease, chronic heart failure, and neuropsychiatric conditions. Growing knowledge of the central biological roles of vasopressin has enabled pharmacological advances to treat these conditions by targeting defective systemic or central pathways utilizing specific agonists and antagonists.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Chiara Gamberi
- Biology Department, Concordia University, Montreal, QC H4B 1R6, Canada; (S.S.); (C.M.-B.); (J.O.); (K.M.); (P.H.); (T.K.); (N.A.); (C.M.A.); (M.B.); (B.B.); (M.B.); (G.B.); (R.B.); (L.B.); (Z.C.); (A.C.); (J.C.); (T.D.); (J.D.); (I.D.); (J.D.); (E.D.); (S.E.-K.); (N.F.); (A.F.); (A.F.); (M.G.); (M.C.G.); (O.G.); (A.G.); (E.G.); (E.H.); (C.H.); (T.I.); (C.K.); (S.K.); (E.K.); (H.K.K.); (T.B.U.L.); (D.L.); (Y.F.L.); (D.M.R.); (F.M.); (S.M.); (A.N.); (K.N.-D.); (C.O.-L.); (H.W.P.); (E.P.); (K.P.-C.); (L.S.P.); (M.P.); (C.-A.P.); (J.P.M.); (S.P.); (R.R.); (S.R.); (S.R.); (D.R.); (R.S.); (D.S.); (S.S.F.); (M.S.); (N.S.M.); (K.S.); (L.T.); (M.W.T.); (S.T.-H.); (S.T.-C.); (C.W.); (A.J.W.); (A.W.)
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Kamali S, Yu E, Bates B, McBride JR, Johnson CE, Taufour V, Stroeve P. Magnetic properties of γ-Fe 2O 3 nanoparticles in a porous SiO 2 shell for drug delivery. J Phys Condens Matter 2020; 33:065301. [PMID: 33231198 DOI: 10.1088/1361-648x/abc403] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A method is presented for synthesizing core-shell nanoparticles with a magnetic core and a porous shell suitable for drug delivery and other medical applications. The core contains multiple γ-Fe2O3 nanoparticles (∼15 nm) enclosed in a SiO2 (∼100-200 nm) matrix using either methyl (denoted TMOS-γ-Fe2O3) or ethyl (TEOS-γ-Fe2O3) template groups. Low-temperature Mössbauer spectroscopy showed that the magnetic nanoparticles have the maghemite structure, γ-Fe2O3, with all the vacancies in the octahedral sites. Saturation magnetization measurements revealed that the density of γ-Fe2O3 was greater in the TMOS-γ-Fe2O3 nanoparticles than TEOS-γ-Fe2O3 nanoparticles, presumably because of the smaller methyl group. Magnetization measurements showed that the blocking temperature is around room temperature for the TMOS-γ-Fe2O3 and around 250 K for the TEOS-γ-Fe2O3. Three dimensional topography analysis shows clearly that the magnetic nanoparticles are not only at the surface but have penetrated deep in the silica to form the core-shell structure.
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Affiliation(s)
- S Kamali
- Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee Space Institute, Tullahoma, TN 37388, United States of America. Department of Physics and Astronomy, Middle Tennessee State University, Murfreesboro, TN 37132, United States of America
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Pussi K, Barbiellini B, Ohara K, Carbo-Argibay E, Kolen'ko YV, Bansil A, Kamali S. Structural properties of PbTe quantum dots revealed by high-energy x-ray diffraction. J Phys Condens Matter 2020; 32:485401. [PMID: 32726769 DOI: 10.1088/1361-648x/abaa80] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 07/29/2020] [Indexed: 06/11/2023]
Abstract
High-energy x-ray diffraction (HE-XRD) experiments combined with an analysis based on atomic-pair-distribution functions can be an effective tool for probing low-dimensional materials. Here, we show how such an analysis can be used to gain insight into structural properties of PbTe nanoparticles (NPs). We interpret our HE-XRD data using an orthorhombic Pnma phase of PbTe, which is an orthorhombic distortion of the rocksalt phase. Although local crystal geometry can vary substantially with particle size at scales below 10 nm, and for very small NPs the particle size itself influences x-ray diffraction patterns, our study shows that HE-XRD can provide a unique nano-characterization tool for unraveling structural properties of nanoscale systems.
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Affiliation(s)
- K Pussi
- Department of Physics, School of Engineering Science, LUT University, FI-53850 Lappeenranta, Finland
| | - B Barbiellini
- Department of Physics, School of Engineering Science, LUT University, FI-53850 Lappeenranta, Finland
- Physics Department, Northeastern University, Boston, MA 02115, United States of America
| | - K Ohara
- Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - E Carbo-Argibay
- International Iberian Nanotechnology Laboratory, Braga 4715-330, Portugal
| | - Y V Kolen'ko
- International Iberian Nanotechnology Laboratory, Braga 4715-330, Portugal
| | - A Bansil
- Physics Department, Northeastern University, Boston, MA 02115, United States of America
| | - S Kamali
- Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee Space Institute, Tullahoma, TN 37388, United States of America
- Department of Physics and Astronomy, Middle Tennessee State University, Murfreesboro, TN 37132, United States of America
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Kamali S, Chen CJ, Bates B, Johnson CE, Chiang RK. Size-dependent magnetic properties of γ-Fe 2O 3 nanocrystallites. J Phys Condens Matter 2020; 32:015302. [PMID: 31487694 DOI: 10.1088/1361-648x/ab41be] [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: 06/10/2023]
Abstract
A route for synthesizing monodisperse magnetic nanocrystallites of maghemite, [Formula: see text]-Fe2O3, with various sizes has been revisited. A systematic investigation of three [Formula: see text]-Fe2O3 nanocrystalline samples by different techniques has been performed to characterize their size-dependent magnetic properties. Zero-field-cooled and field-cooled magnetization measurements reveal that the superparamagnetic blocking temperatures are around 230 K, 170 K, and 50 K for the 15.0 nm, 11.8 nm, and 6.1 nm nanocrystallites, respectively. Low-temperature Mössbauer spectra show that all three nanocrystallites have the maghemite structure with all the vacancies in the B-sites. Furthermore, detailed analysis shows that there are more vacancies on the B-sites for the 6.1 nm nanocrystallites compared to 0.33 for the bulk maghemite.
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Affiliation(s)
- S Kamali
- Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee Space Institute, Tullahoma, TN 37388, United States of America. Department of Physics and Astronomy, Middle Tennessee State University, Murfreesboro, TN 37132, United States of America
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Yazdanpanahi N, Salehi R, Kamali S. RAD51 135G>C polymorphism and risk of sporadic colorectal cancer in Iranian population. J Cancer Res Ther 2018; 14:614-618. [PMID: 29893328 DOI: 10.4103/0973-1482.183558] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Toz B, Tacar S, Oguz E, Erdugan M, Esen B, Kamali S, Ocal L, Erer B, Gül A. FRI0479 Efficacy of Colchicine and IL-1 Inhibitors in Amyloidosis Associated with Familial Mediterranean Fever: A Retrospective Analysis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5360] [Citation(s) in RCA: 3] [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: 11/04/2022]
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Toz B, İnanç M, Senturk N, Erer B, Artım Esen B, Kamali S, Ocal L, Gül A. FRI0502 Biologic Agents in Refractory Adult Still's Disease: Better Response Rates and Acceptable Safety with Anakinra and Tocilizumab. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.4994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Vatandoost N, Salehi AR, Kazemi M, Khosravi S, Eslami G, Kamali S, Salehi R. Genetic polymorphism of 8 Y-STR loci in native population of Isfahan province in central part of Iran. Ann Hum Biol 2016; 44:175-179. [PMID: 27282193 DOI: 10.1080/03014460.2016.1200671] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND Y-chromosome short tandem repeats (Y-STRs) are genetic markers with practical applications in human identification and population studies. AIM Here we present the allelic and haplotype frequencies of 8 Y-STR loci most commonly used in forensic medicine in 103 unrelated native males of Isfahan province, central part of Iran. SUBJECTS AND METHODS The cases were selected on the basis of strict criteria to assure pure native populations of Isfahan origin. DNA extracted from peripheral blood samples and PCR amplified for each marker. Y-specific STR loci DYS19, DYS385, DYS389I, DYS389II, DYS390, DYS391, DYS392 and DYS393 were included in this study. RESULTS The most common alleles for each locus were: DYS19, allele 12; DYS385, allele 12; DYS389I, allele 13; DYS389II, allele 29; DYS390, allele 24; DYS391, allele 10; DYS392, allele 11; and DYS393, allele 13. Gene diversity value was calculated from the allelic frequency for each locus. The average gene diversity was 0.6518. A total of 101 haplotypes were observed in eight Y-specific STR loci, the haplotype diversity was raised to 0.986. CONCLUSION The results revealed that a set of eight Y-specific STR loci were able to discriminate most of the male individuals in the population studied. A search through the Y Haplotype Reference Database demonstrated 21 matched haplotypes to 160,693 haplotypes, exclusively with Eurasian-European, Eurasian, and Eurasian-Indo Iranian populations.
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Affiliation(s)
- Nasimeh Vatandoost
- a Department of Genetics and Molecular Biology , School of Medicine, Isfahan University of Medical Sciences , Isfahan, Iran
| | - Ahmad Reza Salehi
- a Department of Genetics and Molecular Biology , School of Medicine, Isfahan University of Medical Sciences , Isfahan, Iran
| | - Mohammad Kazemi
- a Department of Genetics and Molecular Biology , School of Medicine, Isfahan University of Medical Sciences , Isfahan, Iran
| | - Sharifeh Khosravi
- a Department of Genetics and Molecular Biology , School of Medicine, Isfahan University of Medical Sciences , Isfahan, Iran
| | - Gilda Eslami
- b Department of Parasitology and Mycology, Faculty of Medicine , Shahid Sadoughi University of Medical Sciences , Yazd , Iran
| | - Sara Kamali
- a Department of Genetics and Molecular Biology , School of Medicine, Isfahan University of Medical Sciences , Isfahan, Iran
| | - Rasoul Salehi
- a Department of Genetics and Molecular Biology , School of Medicine, Isfahan University of Medical Sciences , Isfahan, Iran.,c Acquired Immunodeficiency Research Center, Isfahan University of Medical Sciences , Isfahan , Iran.,d Gerfa Namayesh Azmayesh (GENAZMA) Research & Science Institute , Isfahan, Iran
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Artim-Esen B, Erdugan M, Oguz E, Toz B, Erer B, Kamali S, Gül A, Ocal L, İnanç M. SAT0295 Autoimmune Hemolytic Anemia and Thrombocytopenia in A Single Centre Cohort of Patients with Systemic Lupus Erythematosus from Turkey: Clinical Associations and Effect on Disease Damage and Survival. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5854] [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: 11/03/2022]
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Toz B, Erer B, Kamali S, Tugal-tutkun I, Ocal L, Gul A. AB0896 Cogan Syndrome: Differential Response To Biologic Agents and Role of PET-CT in The Increased Diagnosis of Aortitis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.4573] [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: 11/04/2022]
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Artim-Esen B, Şahinkaya Y, Yüce T, Pehlivan O, Bektaş M, Toz B, Erer B, Kamali S, Gül A, Ocal L, İnanç M. AB0433 Disease Characteristics, Survival Analysis and Mortality in A Single Centre Cohort of 240 Patients with Antiphospholipid Syndrome. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5888] [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: 11/04/2022]
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Toz B, Erer B, Kamali S, Ocal L, Gul A. Differential response to anakinra and adalimumab in a patient with DADA2 syndrome. Pediatr Rheumatol Online J 2015. [PMCID: PMC4599387 DOI: 10.1186/1546-0096-13-s1-p201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Kamali S, Shih K, Barbiellini B, Wang YJ, Kaprzyk S, Itou M, Bansil A, Sakurai Y. Extracting the cation distributions in NiFe2-xAlxO4 solid solutions using magnetic Compton scattering. J Phys Condens Matter 2015; 27:456003. [PMID: 26471985 DOI: 10.1088/0953-8984/27/45/456003] [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] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We discuss the ground state electronic structure and magnetization properties of a series of NiFe2-x Al x O4 solid solutions (x = 0.0, 0.4, 0.8, 1.2, 1.6, and 2.0) using magnetic Compton scattering measurements, together with parallel first-principles computations. In this way, we systematically extract the complicated cation distributions in this ferrite system as a function of x. The relationship between the electronic ground state, magnetism, and cation distributions is explained in terms of a model, validated by our first-principles computations, wherein the magnetic properties of the three cation distributions are assumed to be different. A good accord is found between the computed and measured magnetic Compton profiles.
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Affiliation(s)
- S Kamali
- Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee Space Institute, Tullahoma, TN 37388, USA
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Ramezanzadeh M, Salehi M, Farajzadegan Z, Kamali S, Salehi R. Detection of paternally inherited fetal point mutations for β-thalassemia in maternal plasma using simple fetal DNA enrichment protocol with or without whole genome amplification: an accuracy assessment. J Matern Fetal Neonatal Med 2015; 29:2645-9. [PMID: 26553322 DOI: 10.3109/14767058.2015.1095883] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE To design and evaluate a noninvasive protocol for prenatal diagnosis (PND) of β-thalassemia, using cell free fetal DNA (cff-DNA) in maternal circulation. Traditional current PND which is mainly based on chorionic villous sampling (CVS), amplification refractory mutation system and sequencing holds as gold standard. METHODS Ten thalassemia trait couples with distinct mutations for the husband and wife were included in this study. The mutations in carrier fathers were IVSI-1, IVSI-5, FR8/9 and CD44. After maternal plasma isolation and free DNA extraction, all samples subjected to designed protocol including DNA size separation on agarose gel, elution of DNA from the gel slices using a simple and efficient manual purification method, with or without whole genome amplification and the detection method was allele-specific real-time PCR. RESULTS Presence or absence of the paternal mutant allele was correctly determined in all of cases and the accuracy of designed protocol was determined 100%. CONCLUSIONS The protocol described here is very simple, inexpensive and easy to perform, but with satisfactory accuracy in detection of paternal mutations in cff-DNA. Due to the risk of fetal loss with current invasive sampling for PND, a noninvasive alternative is highly demanded in clinical setting.
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Affiliation(s)
- Mahboubeh Ramezanzadeh
- a Department of Genetics and Molecular Biology , School of Medicine, Isfahan University of Medical Sciences , Isfahan , Iran and
| | - Mansour Salehi
- a Department of Genetics and Molecular Biology , School of Medicine, Isfahan University of Medical Sciences , Isfahan , Iran and
| | - Ziba Farajzadegan
- b Department of Community Medicine , Isfahan University of Medical Sciences , Isfahan , Iran
| | - Sara Kamali
- a Department of Genetics and Molecular Biology , School of Medicine, Isfahan University of Medical Sciences , Isfahan , Iran and
| | - Rasoul Salehi
- a Department of Genetics and Molecular Biology , School of Medicine, Isfahan University of Medical Sciences , Isfahan , Iran and
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Kamali S, Yilmaz E, Sivrikoz E, Erturk MO, Kamali GH, Sivrikoz TS, Guven H. Galectin-3 as a potential biomarker in colorectal cancer? Eur Surg 2015. [DOI: 10.1007/s10353-015-0344-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Alpay-Kanitez N, Omma A, Erer B, Artim-Esen B, Gül A, Inanç M, Öcal L, Kamali S. Favourable pregnancy outcome in Takayasu arteritis: a single-centre experience. Clin Exp Rheumatol 2015; 33:S-7-10. [PMID: 25236472] [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] [Received: 01/24/2014] [Accepted: 04/30/2014] [Indexed: 06/03/2023]
Abstract
OBJECTIVES Takayasu arteritis is a chronic large-vessel vasculitis in young women of reproductive age. We aimed to obtain information on pregnancy in TA retrospectively. METHODS Takayasu arteritis patients with history of pregnancy were included in this study. The evaluations included physical findings, serum C-reactive protein, erythrocyte sedimentation rate as well as history and symptoms. Information about pregnancies, abortus, deliveries and newborns was obtained from medical records. Disease activity score, disease damage index appraised Kerr's criteria and vasculitis damage index (VDI) and medication were recorded. RESULTS Thirty-six Takayasu arteritis patients who had a total of 84 pregnancies were evaluated. The mean age of patients ranged 24.5 ± 6.6 years. Subclavian arteries (86%) were the most frequently involved vessels. We were able to complete the follow-up of ten patients who had a pregnancy after diagnosis during the period of pregnancy. Two patients who had renal artery involvement and active disease in third trimester suffered from preeclampsia and a worsening of hypertension. In one of them, disease flared up in the third trimester. There was no active disease in the postpartum sixth month. Maternal heart failure, cerebrovascular accident, death or cerebral hypoperfusion at the time of delivery, asphyxia and newborn anomalies were not seen in any of these patients. CONCLUSIONS TA pregnancies may have a favourable outcome with regular follow-up schedule and close monitorisation of blood pressure.
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Affiliation(s)
- N Alpay-Kanitez
- Department of Internal Medicine, Division of Rheumatology, Istanbul University, Istanbul Medical Faculty, Istanbul, Turkey
| | - A Omma
- Department of Internal Medicine, Division of Rheumatology, Istanbul University, Istanbul Medical Faculty, Istanbul, Turkey
| | - B Erer
- Department of Internal Medicine, Division of Rheumatology, Istanbul University, Istanbul Medical Faculty, Istanbul, Turkey
| | - B Artim-Esen
- Department of Internal Medicine, Division of Rheumatology, Istanbul University, Istanbul Medical Faculty, Istanbul, Turkey
| | - A Gül
- Department of Internal Medicine, Division of Rheumatology, Istanbul University, Istanbul Medical Faculty, Istanbul, Turkey
| | - M Inanç
- Department of Internal Medicine, Division of Rheumatology, Istanbul University, Istanbul Medical Faculty, Istanbul, Turkey
| | - L Öcal
- Department of Internal Medicine, Division of Rheumatology, Istanbul University, Istanbul Medical Faculty, Istanbul, Turkey
| | - S Kamali
- Department of Internal Medicine, Division of Rheumatology, Istanbul University, Istanbul Medical Faculty, Istanbul, Turkey
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Kamali S, Kilmametov A, Ghafari M, Itou M, Hahn H, Sakurai Y. Controlling spin polarized band-structure by variation of vacancy intensity in nanostructures. J Phys Condens Matter 2015; 27:075304. [PMID: 25646271 DOI: 10.1088/0953-8984/27/7/075304] [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: 06/04/2023]
Abstract
In this study, the magnetic properties of FeAl alloys with different grain sizes produced by high-pressure torsion were probed by means of magnetic Compton scattering. The measurements were performed at 300 and 10 K. Magnetic Compton profiles of nanocrystalline (35 nm) and ultrafine-grained (160 nm) FeAl alloys were analyzed in terms of the integral area, the width, and the distinctive dip intensity at low momenta. The changes in total magnetic moment and the strength of spin-polarization of itinerant electrons are assumed to be caused by vacancies induced during the preparation of the samples. Despite local disordering due to interfacial regions and deviations in perfect stoichiometry for B2 structure, the effect of vacancies is considered as the major magnetic state contributor.
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Affiliation(s)
- S Kamali
- Department of Chemistry, University of California, Davis, CA 95616, USA
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Hariri M, Salehi R, Feizi A, Mirlohi M, Kamali S, Ghiasvand R. The effect of probiotic soy milk and soy milk on anthropometric measures and blood pressure in patients with type II diabetes mellitus: A randomized double-blind clinical trial. ARYA Atheroscler 2015; 11:74-80. [PMID: 26261453 PMCID: PMC4530661] [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: 08/15/2014] [Accepted: 11/22/2014] [Indexed: 11/30/2022]
Abstract
BACKGROUND The objective of this clinical trial was to assess the effects of probiotic soy milk and soy milk on anthropometric measures and blood pressure (BP) in type 2 diabetic (T2D) patients. METHODS A total of 40 patients with T2D, 35-68 years old, were assigned to two groups in this randomized, double-blind, controlled clinical trial. The patients in the intervention group consumed 200 ml/day of probiotic soy milk containing Lactobacillus planetarium A7 and those in control group consumed 200 ml/day of soy milk for 8 weeks. Anthropometric and BP measurements were performed according to standard protocols. For detecting within-group differences paired-sample t-tests was used and analysis of covariance was used for determining any differences between two groups. (The trial has been registered in the Iranian Registry of Clinical Trials, identifier: IRCT: IRCT201405265062N8). RESULTS In this study, we failed to find any significant changes between probiotic soy milk and soy milk in term of body mass index (26.65 ± 0.68 vs. 26.33 ± 0.74, P = 0.300) and waist to hip ratio (1.49 ± 0.08 vs. 1.54 ± 0.1, P = 0.170). Although soy milk did not have any effect on BP, probiotic soymilk significantly decreased systolic (14.7 ± 0.48 vs. 13.05 ± 0.16, P = 0.001) and diastolic BP (10 ± 0.7 vs. 9.1 ± 1, P = 0.031). CONCLUSION In our study, probiotic soy milk in comparing with soy milk did not have any beneficial effects on anthropometric measures in these patients. We need more clinical trial for confirming the effect of probiotic foods on anthropometric measure in diabetic patients. However, probiotic soy milk decreased systolic and diastolic BP significantly.
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Affiliation(s)
- Mitra Hariri
- Hypertension Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Rasoul Salehi
- Pediatrics Inherited Diseases Research Center AND Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Awat Feizi
- Department of Biostatistics and Epidemiology, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Maryam Mirlohi
- Heart Failure Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sara Kamali
- Pediatrics Inherited Diseases Research Center AND Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Reza Ghiasvand
- Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran,Correspondence to: Reza Ghiasvand,
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Naghshineh E, Khorvash E, Kamali S. A comparison of cell-free placental messenger ribonucleic acid and color Doppler ultrasound for the prediction of placental invasion in patients with placenta accreta. Adv Biomed Res 2015; 4:31. [PMID: 25709996 PMCID: PMC4333436 DOI: 10.4103/2277-9175.150425] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 02/16/2014] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND The aim of the present study was to comparison between cell-free placental messenger ribonucleic acid (mRNA) and Doppler ultrasound for the prediction of placental invasion in women with placenta accreta. MATERIALS AND METHODS In this cross-sectional study, 50 pregnant women at risk for placenta accreta underwent color Doppler and assessment of cell-free placental mRNA. Real-time reverse-transcription polymerase chain reaction was used for measurement of cell-free placental mRNA in maternal plasma. Based on the findings at cesarean delivery and histological examination, patients were divided into two groups of women with and without placenta accrete. To compare of the mean of mRNA levels between the two groups we used independent t-test and to compare of the mean of age and gestational age at sonography we used Mann-Whitney test. For determination of sensitivity and specificity and the cut-off point of mRNA levels we used the receiver operating characteristic curve. RESULTS A total of 50 women with a mean age of 30.24 ± 4.905 years entered the study and 12 (24%) patients were diagnosed with placenta accreta. The sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of Doppler ultrasound were 83.3%, 78.9%, 56% and 94%, respectively. Results of our study showed if we consider a cut-off point equal to 3.325, with sensitivity and specificity of 0.917 and 0.789, respectively and the sensitivity, specificity, PPV and NPV of mRNA with were cut-off point of 3.325 were 91.7%, 78.9%, 57.9% and 96.8%, respectively. CONCLUSIONS Cell-free mRNA is an acceptable, easy made, functional test with sensitivity, specificity, PPV and NPV more than Doppler ultrasound for diagnosis and prediction of incidence of placenta accrete and we recommend the use of cell-free mRNA test for diagnosis of placenta accreta.
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Affiliation(s)
- Elham Naghshineh
- Department of Obstetrics and Genecology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Elahe Khorvash
- Department of Obstetrics and Genecology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sara Kamali
- Department of Genetics, Isfahan University of Medical Sciences, Isfahan, Iran
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Savabi O, Kazemi M, Kamali S, Salehi AR, Eslami G, Tahmourespour A, Salehi R. Effects of biosurfactant produced by Lactobacillus casei on gtfB, gtfC, and ftf gene expression level in S. mutans by real-time RT-PCR. Adv Biomed Res 2014; 3:231. [PMID: 25538917 PMCID: PMC4260286 DOI: 10.4103/2277-9175.145729] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [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: 06/26/2013] [Accepted: 09/24/2013] [Indexed: 12/20/2022] Open
Abstract
Background: The Streptococci are the pioneer strains in plaque formation and Streptococcus mutans are the main etiological agent of dental plaque and caries. In general, biofilm formation is a step-wise process, which begins by adhesion of planktonic cells to the surfaces. Evidences show that expression of glucosyltransferase B and C (gtfB and gtfC) and fructosyltransferase (ftf) genes play critical role in initial adhesion of S. mutans to the tooth surface which results in formation of dental plaques and consequently caries and other periodontal disease. Materials and Methods: The aim of this study was to determine the effect of biosurfactants produced by a probiotic strain; Lactobacillus casei (ATCC39392) on gene expression profile of gftB/C and tft of S. mutans (ATCC35668) using quantitative real-time PCR. Results: The application of the prepared biosurfactant caused dramatic down regulation of all the three genes under study. The reduction in gene expression was statistically highly significant (for gtfB, P > 0.0002; for gtfC, P > 0.0063, and for ftf, P > 0.0057). Conclusion: Considerable downregulation of all three genes in the presence of the prepared biosurfactant comparing to untreated controls is indicative of successful inhibition of influential genes in bacterial adhesion phenomena. In view of the importance of glucosyltransferase gene products for S.mutans attachment to the tooth surface which is the initial important step in biofilm production and dental caries, further research in this field may lead to an applicable alternative for successful with least adverse side effects in dental caries prevention.
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Affiliation(s)
- Omid Savabi
- Department of Dental Prosthetics, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Kazemi
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sara Kamali
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ahmad Reza Salehi
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Gilda Eslami
- Department of Parasitology and Mycology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Arezoo Tahmourespour
- Department of Basic Medical Sciences, Khorasgan Branch, Islamic Azad University, Isfahan, Iran
| | - Rasoul Salehi
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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Salehi R, Savabi O, Kazemi M, Kamali S, Salehi AR, Eslami G, Tahmourespour A. Effects of Lactobacillus reuteri-derived biosurfactant on the gene expression profile of essential adhesion genes (gtfB, gtfC and ftf) of Streptococcus mutans. Adv Biomed Res 2014; 3:169. [PMID: 25221772 PMCID: PMC4162076 DOI: 10.4103/2277-9175.139134] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [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: 10/21/2013] [Accepted: 12/15/2013] [Indexed: 11/16/2022] Open
Abstract
Background: Streptococci are the main causative agents in plaque formation and mutans streptococci are the principle etiological agent of dental plaque and caries. The process of biofilm formation is a step-wise process, starting with adhesion of planktonic cells to the surfaces. It is now a well known fact that expression of glucosyltransferases (gtfs) and fructosyltransferase (ftf) genes play a critical role in the initial adhesion of Streptococcus mutans to the tooth surface, which results in the formation of dental plaques and consequently caries and other periodontal diseases. Materials and Methods: In the present study, we have determined the effect of biosurfactants purified from Lactobacillus reuteri (DSM20016) culture on gene expression profile of gftB/C and fft of S. mutans (ATCC35668) using quantitative real-time polymerase chain reaction. Results: The application of biosurfactant caused considerable down-regulation of the expression of all three genes under study. The reduction in gene expression was statistically very significant (P > 0.0001 for all three genes). Conclusions: Inhibition of these genes by the extracted L. reuteri biosurfactant shows the emergence of a powerful alternative to the presently practicing alternatives. In view of the importance of these gene products for S. mutans attachment to the tooth surface, which is the initial important step in biofilm production and dental caries, we believe that the biosurfactant prepared in this study could be considered as a step ahead in dental caries prevention.
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Affiliation(s)
- Rasoul Salehi
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Omid Savabi
- Department of Dental Prosthetics, Faculty of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Kazemi
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sara Kamali
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ahmad Reza Salehi
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Gilda Eslami
- Department of Parasitology and Mycology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Arezoo Tahmourespour
- Department of Basic Medical Sciences, Khorasgan Branch, Islamic Azad University, Isfahan, Iran
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Toz B, Alpay-Kanitez N, Erer B, Polat N, Kamali S, Ocal L, Gul A. FRI0442 Acute Phase Reactants and their Correlation with Clinical Activity in Behcet's Disease. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.5998] [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: 11/04/2022]
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Demir A, Akyüz F, Gokturk S, Evirgen S, Gulluoglu M, Erer B, Kamali S, Gul A. THU0360 Small Bowel Mucosal Findings in Familial Mediterranean Fever. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.5964] [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: 11/04/2022]
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Sarı M, Ince B, Ozluk Y, Erer B, Gul A, Inanc M, Ocal L, Kilicarslan I, Kamali S. AB0595 Favourable Renal Outcome in AAV Nephritis: A CASE Series Reported from A Tertiary Referral Center. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.4882] [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: 11/04/2022]
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Kamali S, Harman Kamali G, Akan A, Simşek S, Bender O. Use of ductoscopy as an additional diagnostic method and its applications in nipple discharge. MINERVA CHIR 2014; 69:65-73. [PMID: 24847893] [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
AIM About 1/10 of the patients apply to breast clinics with the complaint of nipple discharge (ND). Surgery is the most frequently preferred treatment method in case of suspicious ND. The contribution of ductoscopy to identify the patients who are candidates for surgery was evaluated and its role to limit the surgery was assessed. METHODS From November 2005 to December 2010 430 patients with ND were assessed by 456 ductoscopic investigations and the results were analyzed. Complete ductoscopic evaluation was achieved in 84% of cases and 28 patients were offered surgery but did not accept (N.=355). Patients with bloody or serous discharges from a single duct were investigated by ductoscopy under local anesthesia as an office procedure. The patients were grouped according to discharge characteristics and the ductoscopic diagnoses. RESULTS A total of 223 patients had all three criteria of pathologic ND (PND: single duct, spontaneous and bloody/serous discharge). Twenty-two potential neoplastic or malignant lesion (PNML) and 79 papillomatous lesion (solitary or multiple papilloma) were identified. In 132 patients with just two of the PND criteria, 5 PNML and 18 papillomatous lesions were identified. Twenty-three patients with solitary papilloma that were removed by ductoscopic papillomectomy (DP) are followed up without surgery. CONCLUSION Ductoscopy helped to identify the patients who required surgical treatment and decreased the number of operations. DP was successfully performed in select group of patients who otherwise would have required surgical resection. Patients with normal ductoscopy findings and patients who were treated with DP successfully can be followed up without the need of surgery.
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Affiliation(s)
- S Kamali
- SB Okmeydani Education and Research Hospital, Department of General Surgery, Istanbul, Turkey -
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Kamali S, Zha CL, Yoda Y, Åkerman J. Oxidation states and quality of upper interfaces in magnetic tunnel junctions: oxygen effect on crystallization of interfaces. J Phys Condens Matter 2014; 26:026004. [PMID: 24334442 DOI: 10.1088/0953-8984/26/2/026004] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this study, we have deposited an 57Fe sensor layer at the upper interface, i.e. the interface between the oxide barrier and the upper electrode in selected magnetic tunnel junctions (MTJs), in order to perform nuclear resonant scattering with the aim of obtaining direct information on the magnetic properties and quality of this interface. This is a unique approach as it makes use of this powerful technique to give information at the atomic level, and specifically from the interface where the sensor layer is deposited. By varying sample tunnel barrier thicknesses and oxidation times in the preparation of this barrier, we have observed that longer oxidation time results in not only an increase of the magnetic hyperfine fields, but also causes an interesting crystallization and smoothing of the interface. We also observed that boron atoms diffuse away from the lower part of the upper FeCoB electrode toward the capping layer. An important observation, which has a crucial effect in tunnel magnetoresistance values, is the absence of any magnetically dead FeO layer at the interface. Another finding is that the deposition of Fe on MgO is much smoother than the deposition of MgO on Fe.
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Honar N, Kamali S, Karimi M. Frequency of Celiac Disease in Children with Beta Thalassemia major. Iran J Ped Hematol Oncol 2014; 4:48-52. [PMID: 25002924 PMCID: PMC4083199] [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: 01/20/2014] [Accepted: 03/14/2014] [Indexed: 11/05/2022]
Abstract
BACKGROUND We aimed to investigate the frequency of celiac disease in children with β-thalassemia major (B-TM) in Shiraz, southern Iran. MATERIALS AND METHODS In this study, the prevalence of celiac disease in children with B-TM was evaluated. Children with B-TM were screened for celiac disease by ant-tissue transglutaminase (anti-tTG) IgA antibody, IgA level and anti-tTG IgG. A total of 1500 school healthy children in Shiraz with age/sex matched were selected as control group. RESULTS A total of 215 B-TM patients with mean age of 12.7 ± 4.4 years, were included into the study (52.1% was male). None of the patients were positive for anti-tTG IgA. Eight cases were IgA deficient in whom anti-tTG IgG was investigated but none of them were positive for anti-tTG IgG. The finding in control group has a seroprevalence of 2% and biopsy proven disease of 0.6%. CONCLUSION Many patients with thalassemia major have multiple non specific symptom that are not justifiable with underlying disease and might be due to atypical celiac disease. We didn't find any case of celiac disease among more than 200 children with β-thalassemia major in Shiraz, southern Iran. So it seems reasonable to screen only those who have features, even not classical, of celiac disease.
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Affiliation(s)
- N Honar
- Assistant Professor of pediatric gastroenterologist, Department of gastroenterology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - S Kamali
- Resident of Pediatrics, Department of Pediatrics, Shiraz University of Medical Sciences, Shiraz, Iran
| | - M Karimi
- Professor of pediatric hematology oncology, Hematology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran ,Corresponding author: Karimi M , Professor of Pediatrics Hematology and Oncology Hematology Research Center, Nemazee HospitalShiraz University of Medical Sciences, Shiraz, Iran.
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Kara E, Erer B, Artim Esen B, Omma A, Sahinkaya Y, Kanitez N, Gul A, Inanc M, Aral O, Ocal L, Kamali S. FRI0210 Poor immunization with hepatitis B vaccination in patients with granulomatosis with poliangiitis (wegener’s) and more favorable antibody response in females. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2667] [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: 11/03/2022]
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Omma A, Erer B, Alpay N, Gurel Polat N, Gul A, Inanc M, Kamali S. AB0437 Predictivity of serum biomarkers for disease activity in a prospectively followed-up takayasu arteritis cohort: is serum amyloid a protein better than conventional acute phase markers? Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2759] [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: 11/04/2022]
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Omma A, Erer B, Karadag O, Yilmaz N, Alibaz Oner F, Yildiz F, Kiraz S, Direskeneli H, Erken E, Gul A, Ocal L, Inanc M, Kamali S. THU0203 Cross-sectional assessment of damage in takayasu arteritis with a validated tool. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Yalcinkaya Y, Pehlivan O, Alpay N, Omma A, Erer B, Kamali S, Ocal L, Inanc M. AB0510 The relationship between nailfold capillaroscopic assessment and telangiectasia score with severity of peripheral vascular involvement in systemic sclerosis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2832] [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: 11/03/2022]
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Kamali S, Pay S, Inanc N, Simsek I, Hamuryudan V. FRI0193 Current therapy of rheumatoid arthritis in turkey: rheumatologists’ perspective. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1320] [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: 11/04/2022]
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Kamali S, Zha CL, Yoda Y, Akerman J. Oxidation states and the quality of lower interfaces in magnetic tunnel junctions: oxygen effect on crystallization of interfaces. J Phys Condens Matter 2013; 25:135302. [PMID: 23470360 DOI: 10.1088/0953-8984/25/13/135302] [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: 06/01/2023]
Abstract
Lower interfaces in magnetic tunnel junctions (MTJs), which are the basic components in many spintronic devices such as magnetoresistive random access memories, have crucial effects on the performance of these devices. To obtain more insight into such interfaces, we have introduced an ultrathin sensor layer of (57)Fe at the interface between the lower electrode and the oxide barrier in selected MTJs. This allowed us to perform nuclear resonant scattering measurements, which provide direct information on the magnetic properties and quality of the interfaces. The application of nuclear resonant scattering to study interfaces in MTJs is a unique approach in the sense that it gives information at the atomic level, and specifically from the interface where the sensor layer is deposited. Samples with different tunnel barrier thicknesses and varied oxidation times in the preparation of this barrier have been studied. These show that oxidation can not only increase the magnetic hyperfine fields but also cause an interesting smoothing and crystallizing of the interface. Another interesting finding is the observation of boron diffusion into the lower part of the FeCoB lower electrode towards the Ta seed layer.
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Affiliation(s)
- S Kamali
- Department of Chemistry, University of California, Davis, CA 95616, USA.
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Akan A, Eryavuz Y, Kamali S, Simşek S, Hot S, Bademci R. A randomized, placebo controlled study: EMLA in minor breast surgery. MINERVA CHIR 2012; 67:181-185. [PMID: 22487920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
AIM Patients undergoing excision for breast lumps prefer general anesthesia or local anesthesia plus sedation, because of the fear of pain for local anesthesia alone. The aim of this study is to show the efficacy of an eutectic mixture of local anesthetic lignocaine and prilocaine (EMLA®) in these patients. METHODS This study has been designed randomized, placebo-controlled. Forty five patients undergoing excision for breast lumps were divided into three groups. The first group was administered local EMLA cream preoperatively (Group I, N.=15), the second group (Group II, N.=15) had no preoperative preparation and the third group was placebo group (Group III, N.=15). All groups underwent the operation under local anesthesia. Pain during the local anesthesia and three hours after the operation were assessed using the visual analog scale. The amount of local anesthetic used during the operation and the anesthetic need of patients after the operation were assessed. RESULTS When the three groups were compared, it was found that the intensity of pain in the group with EMLA was considerably lower during and after the operation (P<0.05). The amount of local anesthetic used during the operation was lower (P<0.05) and the need for post-operative analgesic was also less than the usual (P<0.05). CONCLUSION Topical EMLA use decreases the pain, provides per-operative and postoperative patient and physician comfort, improved patient's compliance, and simplifies the surgical procedure. This is the first study demonstrating that a topical anesthetic provides a non-invasive analgesia during benign breast mass excision.
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Affiliation(s)
- A Akan
- Department of General Surgery, Okmeydanı Education and Research Hospital, Istanbul, Turkey.
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Kamali S, Häggström L, Sahlberg M, Wäppling R. Magnetic and interface properties of Fe(0.82)Ni(0.18)/Co(001) superlattices. J Phys Condens Matter 2011; 23:055301. [PMID: 21406905 DOI: 10.1088/0953-8984/23/5/055301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The thickness dependence of the Fe magnetic hyperfine field and the interfacial intermixing of Fe(0.82)Ni(0.18)/Co superlattices, with the same thickness for FeNi and Co layers, have been investigated. A local concentration model using the magnetic hyperfine field values from the [Fe(0.82)Ni(0.18)](1 - x)Co(x) alloys has been used to interpret the field distribution in the superlattices and the Co concentration profiles over the superlattices. A relationship between the Fe magnetic hyperfine field and the Fe magnetic moment has been determined for the unordered [Fe(0.82)Ni(0.18)](1 - x)Co(x) and Fe(1 - x)Co(x) alloys. The magnetic hyperfine fields have been explained using two Fermi contact terms: (i) the core electron term proportional to the Fe magnetic moment with a proportionality constant of - 13 T/μ(B) and (ii) a valence electron term linearly dependent on the Co concentration. The direction of the magnetic moments is found to be in the sample plane except for the 1/1 superlattice, where an angle of about 45° is found.
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Affiliation(s)
- S Kamali
- Department of Applied Science, University of California, Davis, CA 95616, USA.
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Abstract
BACKGROUND Adult-onset Still's disease (AOSD) is a febrile disorder of unknown aetiology characterised by typical spiking fever, evanescent rash, arthralgia and leucocytosis. METHODS According to the diagnostic criteria of AOSD, we identified 84 patients between 1990 and 2003. The aim of this study was to analyse the characteristics of AOSD in Turkish patients who were followed-up in a tertiary referral centre. RESULTS Of 84 patients of AOSD, 59 (70.2%) were female, 25 (29.8%) were male. Arthralgia (96.4%), fever (95.2%), arthritis (69%), sore throat (65.5%) and typical rheumatoid rash (59.5%) were the most common findings. The mean value of laboratory findings were as follows; C-reactive protein level of 11.59 +/- 6.81 mg/dl, erythrocyte sedimentation rate (ESR) of 89.05 +/- 31 mm/h, leukocyte count of 16,234.51 +/- 7785.2/microl. Leucocytosis was present in 69 patients (84.15%). Forty-eight patients had a WBC count >or= 15,000/microl. Hypoalbuminaemia was present in 35 patients. Abnormal levels of aspartate aminotransferase and alanine aminotransferase were observed in 30 patients, whereas abnormal levels of alkaline phosphatase in 16 patients. Thirty-seven patients had an ESR value of more than 100 mm/h. Thirty-two patients had a ferritin value of more than 1000 ng/dl. CONCLUSION High fever, sore throat, rheumatoid rash, polyarthritis, hyperferritinaemia (>or= 1000 ng/ml), leucocytosis with a neutrophilic predominance, anaemia and hypoalbuminaemia were remarkable observations in the initial examination.
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Affiliation(s)
- Y Cagatay
- Department of Internal Medicine, Division of Rheumatology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
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Bicakcigil M, Aksu K, Kamali S, Ozbalkan Z, Ates A, Karadag O, Ozer HTE, Seyahi E, Akar S, Onen F, Cefle A, Aydin SZ, Yilmaz N, Onat AM, Cobankara V, Tunc E, Ozturk MA, Fresko I, Karaaslan Y, Akkoc N, Yücel AE, Kiraz S, Keser G, Inanc M, Direskeneli H. Takayasu's arteritis in Turkey - clinical and angiographic features of 248 patients. Clin Exp Rheumatol 2009; 27:S59-S64. [PMID: 19646348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE Takayasu's arteritis (TA) is a chronic, inflammatory vasculitis affecting the aorta and its major branches. Although it is more prevalent in Far-East Asia, the distribution of the disease is worldwide with different vascular involvement patterns and clinical manifestations. The objective of this study was to evaluate the demographic, clinical, angiographic and prognostic features of TA patients in Turkey. METHODS Clinical and angiographic findings of 248 TA patients (228 female, 27 male) followed at 15 Rheumatology Centers were prospectively evaluated according to a predefined protocol. RESULTS The mean age was 40.1 years (30.2 years at the clinical onset). Clinical manifestations included constitutional symptoms in 66%, absent or diminished pulses in 88%, bruits in 77%, extremity pain in 69%, claudication in 48%, hypertension in 43% and cerebrovascular accidents (CVA) in 18% of the patients. Renal artery stenosis, aortic regurgitation and pulmonary hypertension were present in 26%, 33% and 12%, respectively. According to the new angiographic classification, type V (50.8%) and Type I (32%) were the most frequent types of involvement. Corticosteroids were the main treatment in 93% of the patients alone (9%) or in combination with immunosuppressive agents (84%). Most frequently preferred immunosuppressive agents were methotrexate (63%), azathioprine (22%) and cyclophosphamide (13%). Remission was observed at least once in 94% of the patients and sustained remission in 71% during follow-up. CONCLUSION The demographical, clinical and angiographic findings of TA patients in our series were similar to those reported from Japan, Brazil and Colombia. Combination therapies with immunosuppressive agents were the preferred choice of treatment in Turkey.
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Affiliation(s)
- M Bicakcigil
- Department of Rheumatology at Yeditepe University, Faculty of Medicine, Istanbul, Turkey.
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Kamali S. Thickness-dependent crystallographic transition in Fe/Ni superlattices. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308079117] [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: 11/11/2022] Open
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Ustek D, Ekmekçi C, Oku B, Coşan F, Cakiris A, Abaci N, Celik S, Kamali S, Hatemi G, Kasapçopur O, Ozdoğan H, Gül A. MEFV gene 3'-UTR Alu repeat polymorphisms in patients with familial Mediterranean fever. Clin Exp Rheumatol 2008; 26:S72-6. [PMID: 19026119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Abstract
OBJECTIVE Familial Mediterranean fever (FMF), an autosomal recessively inherited autoinflammatory disorder, is caused by missense mutations in the pyrin-encoding MEFV gene. The MEFV mutations can be detected in the majority of FMF patients, but there is an important proportion of patients with the FMF phenotype who carry a single or no coding region mutation. This study aimed to investigate the promoter region and 3'-UTR polymorphisms of the MEFV gene in a group of FMF patients with no coding region mutations, to identify variations with a possible role in the regulation of MEFV expression. METHODS The study group consisted of 289 patients with FMF and 103 ethnically-matched healthy individuals of Turkish origin. All individuals were first genotyped for the five most commonly observed mutations (M694V, M680I, V726A, E148Q and M694I). Then, the coding regions of the MEFV gene in patients carrying none of the 5 mutations were amplified and screened using single-stranded conformation polymorphism and DNA sequencing. After the exclusion of patients with mutations in exons, the promoter and 3'-UTR regions of the MEFV gene were investigated in the remainder. For the haplotype analysis, all study groups were genotyped for two of the 3'-UTR single nucleotide polymorphisms (SNP). RESULTS Genotyping for five mutations revealed 186 patients (64.4%) with two mutations, 61 patients (21.1%) with one mutation, and 42 patients (14.5%) with no mutation. The carrier rate for healthy controls was found to be 10%. After screening all 10 exons in the patients with none of the 5 mutations, we identified 36 patients (12.5%) who had no coding region mutations. Analysis of the 3'-UTR region in these patients showed two Alu repeats (AluSx and AluSq), which were located in the 3'-UTR of the reference mRNA sequence. Sequencing of the 3'-UTR of the MEFV gene showed several SNPs that were clustered in 2 haplotypes. When we genotyped all study groups for two of the 3'-UTR SNPs (rs2741918 and rs450021), we observed a significant increase in the frequency of heterozygotes for the 3'-UTR haplotypes in the FMF patients with no coding region polymorphisms compared to the healthy controls (75% versus 48.5%, p=0.006, OR=3.2, 95% CI 1.4-7.4). CONCLUSION This study showed a group of 3'-UTR polymorphisms in the MEFV gene that are clustered in two haplotypes. In addition, a genetic association was observed between 3'-UTR polymorphisms and the FMF patients with no coding region mutations. These findings may suggest a role for 3'-UTR sequences in the regulation of MEFV expression.
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Affiliation(s)
- D Ustek
- Department of Genetics, Institute for Experimental Medicine, Istanbul Faculty of Medicine, Istanbul, Turkey
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Sahin N, Aksu K, Kamali S, Bicakcigil M, Ozbalkan Z, Fresko I, Ozer H, Akar S, Onat AM, Cobankara V, Kiraz S, Oztürk MA, Tunç E, Yücel E, Ates A, Keser G, Inanc M, Direskeneli H, Saruhan-Direskeneli G. PTPN22 gene polymorphism in Takayasu's arteritis. Rheumatology (Oxford) 2008; 47:634-5. [PMID: 18375974 DOI: 10.1093/rheumatology/ken106] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE Takayasu's arteritis (TA) is a chronic, rare granulomatous panarteritis of unknown aetiology involving mainly the aorta and its major branches. In this study, genetic susceptibility to TA has been investigated by screening the functional single nucleotide polymorphism (SNP) of PTPN22 gene encoding the lymphoid-specific protein tyrosine phosphatase. METHODS Totally, 181 patients with TA and 177 healthy controls are genotyped by PCR-RFLP method for the SNP rs2476601 (A/G) of PTPN22 gene. Polymorphic region was amplified by PCR and digested with Xcm I enzyme. RESULTS Detected frequencies of heterozygous genotype (AG) were 5.1% (9/177) in control group and 3.8% (7/181) in TA group (P = 0.61, odds ratio: 0.75, 95% CI: 0.3, 2.0). No association with angiographic type, vascular involvement or prognosis of TA was observed either. CONCLUSION The distribution of PTPN22 polymorphism did not reveal any association with TA in Turkey.
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Affiliation(s)
- N Sahin
- Marmara University Medical Faculty, Division of Rheumatology, Istanbul, Turkey
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Boura P, Tselios K, Skendros P, Kamali S, Sarantopoulos A, Raptopoulou-Gigi M. Adamantiades-Behcet disease (ABD) in northern Greece patients: experience from a single center. Hippokratia 2007; 11:210-5. [PMID: 19582197 PMCID: PMC2552987] [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] [Indexed: 05/28/2023]
Abstract
UNLABELLED OBJECTIVE-METHODS: Adamantiades-Behcet disease (ABD) is a multi-systemic vasculitis of unknown origin, with a characteristic geographic distribution, that affects vessels of all kinds and sizes and is characterized by recurrent mucosal, skin and ocular lesions. In the present study, a series of 36 patients from Northern Greece is analyzed retrospectively in regard to the epidemiological, clinical and immunological parameters. RESULTS All patients had recurrent oral ulcerations (36/36, 100%), while 23/36 (63.9%) experienced genital ulcerations and 22/36 (61.1%) developed ocular disease. Skin manifestations were observed in 23/36 patients (63.9%) and pathergy test was found positive in 14/36 patients (38.9%). Other manifestations included central nervous system involvement, recurrent genitourinary inflammations, arthralgias and superficial thrombophlebitis. Laboratory findings were not specific, partly reflecting the severity of inflammation. Ocular disease was more often observed in HLA-B51 (+) patients (20/31, 64.5%) than in HLA-B51 (-) patients. Standard of care (SOC) treatment consisted of cyclosporine A, azathioprine, methylprednisolone and aspirin, whereas refractory disease was treated with intravenous pulses of methylprednisolone and cyclophosphamide. Occasionally, anti-TNF agents (infliximab) were applied to treat refractory ocular disease. CONCLUSION The findings of the present study come in agreement with those reported for other Mediterranean series. HLA-B51 seems to predispose to more severe disease, while early therapeutic intervention is beneficial for these patients.
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Affiliation(s)
- P Boura
- Clinical Immunology Unit, 2nd Department of Internal Medicine, Hippokration General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece.
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Abstract
We present a young woman who was diagnosed as primary antiphospholipid syndrome (deep vein thrombosis and pulmonary embolism in 1999; moderate thrombocytopenia with high-positive anticardiolipin ELISA tests in 2002, and cerebral thrombosis in 2003), and then developed hairy cell leukemia (massive splenomegaly, neutropenia, hairy cells in blood smear and bone marrow trephine biopsy in 2004). A partial remission was achieved with interferon-alpha 2a therapy. After the initiation of 2-chloro-deoxyadenosine therapy, splenomegaly disappeared, the percentage of hairy cells on the bone marrow reduced below 1%, platelet count returned to normal levels. After complete remission was achieved for hairy cell leukemia proved by bone marrow trephine biopsy, antiphospholipid antibodies were found to be negative, and no further thromboembolic complications and thrombocytopenia were seen. In our literature search, we found only six cases that had both antiphospholipid antibodies and hairy cell leukemia. Our case is the first case of antiphospholipid syndrome before the development of hairy cell leukemia. Both hairy cell leukemia and antiphospholipid syndrome responded to lymphocytotoxic treatment with 2-chloro-deoxyadenosine.
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Affiliation(s)
- R Diz-Kucukkaya
- Division of Hematology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
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Boura P, Tselios K, Kamali S, Skendros P, Sarantopoulos A, Topouzis F. Concurrent relapsing central nervous system and ocular involvement in a case of life-threatening Adamantiades-Behçet Disease (ABD). Neurol Sci 2006; 27:432-5. [PMID: 17205230 DOI: 10.1007/s10072-006-0725-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2006] [Accepted: 09/26/2006] [Indexed: 10/23/2022]
Abstract
Adamantiades-Behçet disease (ABD) is characterised by oral and genital ulcerations, skin lesions and ocular manifestations and, rarely, by central nervous system (CNS) involvement. Neuro-Behçet disease (NBD) is categorised to parenchymal or non-parenchymal, while combined CNS disease is rarely reported in the literature. A case of NBD, with severe relapsing ocular and neurological disease of combined pattern is presented. Neurological complications included brainstem manifestations, as well as neurovascular involvement, while ocular involvement consisted of bilateral uveitis and branch retinal vein occlusion. Manifestations responded to corticosteroid plus cyclophosphamide pulse therapy. Maintenance therapy included cyclosporine A, azathioprine and corticosteroids. Case individualities are discussed, focusing on scepticism concerning treatment of NBD relapses in the long term.
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Affiliation(s)
- P Boura
- Clinical Immunology Unit, 2nd Department of Internal Medicine, Hippokration General Hospital, Aristotle University of Thessaloniki, Konstantinoupoleos St. 49, 54642 Thessaloniki, Greece.
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Saruhan-Direskeneli G, Biçakçigil M, Yilmaz V, Kamali S, Aksu K, Fresko I, Akkoç N, Kiraz S, Ozer HTE, Tunç E, Yücel E, Karaarslan Y, Uyar FA, Doganavşargil E, Inanc M, Direskeneli H. Interleukin (IL)-12, IL-2, and IL-6 gene polymorphisms in Takayasu's arteritis from Turkey. Hum Immunol 2006; 67:735-40. [PMID: 17002904 DOI: 10.1016/j.humimm.2006.06.003] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2006] [Revised: 06/06/2006] [Accepted: 06/22/2006] [Indexed: 11/25/2022]
Abstract
Takayasu's arteritis (TA) is a chronic arterial inflammation of unknown etiology involving mainly the aorta and its major branches. Genetic polymorphisms of cytokines are screened as susceptibility factors for TA in Turkey. A total of 94 patients with TA were investigated for the genetic polymorphisms of the interleukin genes IL12, IL2,and IL6 and were compared with 108 healthy control subjects using polymerase chain reaction-sequence-specific primer method. The frequencies of IL12B 1188 C allele (p = 0.03, OR = 1.7) and CC genotype (p = 0.007, OR = 3.7) were both higher in TA patients than in control subjects. TT genotype at IL2-330 (p = 0.006, OR = 2.4) and GG genotype at IL6-174 (p = 0.04, OR = 1.9) were more frequent in TA patients. Lower prevalence of GT genotype at IL2-330 (p = 0.005, OR = 0.4), CG genotype at IL6-174 (p = 0.001, OR = 0.4), and AG genotypes at IL6-598 (p = 0.01, OR = 0.4) were also detected. The polymorphism of IL-12 as well as IL-6 and IL-2 genes may contribute to susceptibility and pathogenesis of TA by altering cytokine production and inducing inflammation.
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Affiliation(s)
- G Saruhan-Direskeneli
- Istanbul University Istanbul Medical Faculty, Department of Physiology, Istanbul, Turkey.
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