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Furtos G, Baldea B, Silaghi-Dumitrescu L, Bratu D, Moldovan M, Prejmerean C. Measuring the Radiopacity of Flowable Resin Composites Using Scanned Radiograph Images. PARTICULATE SCIENCE AND TECHNOLOGY 2012. [DOI: 10.1080/02726351.2011.589489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Krarup C, Rosberg M, Vikesa J, Cilius Nielsen F, Moldovan M. Degeneration and Regeneration of Peripheral Motor Axons Is Impaired in Mice Heterozygously Deficient for the Myelin Protein P0 Gene (P05.152). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p05.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Krarup C, Rosberg M, Vikesa J, Cilius Nielsen F, Moldovan M. Degeneration and Regeneration of Peripheral Motor Axons Is Impaired in Mice Heterozygously Deficient for the Myelin Protein P0 Gene (IN1-2.001). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.in1-2.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Moldovan M, Stevens KT, Halliburton LE, Schunemann PG, Pollak TM, Setzler SD, Giles NC. Photoluminescence and EPR of Phosphorus Vacancies in ZnGep2. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-607-445] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractZinc germanium diphosphide (ZnGeP2) is a nonlinear optical material used in mid-infrared optical parametric oscillators. The near-infrared photoluminescence (PL) from single crystals of bulk ZnGeP2 has been studied as a function of excitation power, wavelength, temperature, and polarization. At 5 K, a broad PL band extending from 0.7 µm to beyond 1 µm is typically observed. Two distinct emissions with different polarization, power, and temperature behaviors have been resolved. These bands have peaks in intensity near 1.6 eV and 1.4 eV. The relative intensities of these two bands were found to correlate with the presence of phosphorus vacancies, as determined by electron paramagnetic resonance (EPR). A resonance in the intensity of the 1.6-eV band occurs when pumping into a level ∼90 meV below the minimum conduction band. This level is tentatively assigned to the shallow state.
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Cojocaru IM, Socoliuc G, Sapira V, Bastian A, Alexianu M, Moldovan M. Dermatomyositis and polyradiculoneuritis, a rare association. ROMANIAN JOURNAL OF INTERNAL MEDICINE = REVUE ROUMAINE DE MEDECINE INTERNE 2011; 49:217-221. [PMID: 22471104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The association between dermatomyositis and polyradiculoneuritis is rarely citated in the speciality literature. Our patient had at first a disorder that looked like dermatomyositis, then she associated polyradiculoneuritis. At the presentation to our hospital the two diseases were combined, being very difficult to differentiate. The discrimination between these two had been made by performing a muscular biopsy and EMG studies. This emphasizes once again their importance in defining the muscular impairment from the neurogenic one.
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Meehan CF, Moldovan M, Marklund SL, Graffmo KS, Nielsen JB, Hultborn H. Intrinsic properties of lumbar motor neurones in the adult G127insTGGG superoxide dismutase-1 mutant mouse in vivo: evidence for increased persistent inward currents. Acta Physiol (Oxf) 2010; 200:361-76. [PMID: 20874803 DOI: 10.1111/j.1748-1716.2010.02188.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
AIM Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disease characterized by a preferential loss of motor neurones. Previous publications using in vitro neonatal preparations suggest an increased excitability of motor neurones in various superoxide dismutase-1 (SOD1) mutant mice models of ALS which may contribute to excitotoxicity of the motor neurones. METHODS Using intracellular recording, we tested this hypothesis in vivo in the adult presymptomatic G127insTGGG (G127X) SOD1 mutant mouse model of ALS. RESULTS At resting membrane potentials the basic intrinsic properties of lumbar motor neurones in the adult presymptomatic G127X mutant are not significantly different from those of wild type. However, at more depolarized membrane potentials, motor neurones in the G127X SOD1 mutants can sustain higher frequency firing, showing less spike frequency adaption (SFA) and with persistent inward currents (PICs) being activated at lower firing frequencies and being more pronounced. CONCLUSION We demonstrated that, in vivo, at resting membrane potential, spinal motor neurones of the adult G127X mice do not show an increased excitability. However, when depolarized they show evidence of an increased PIC and less SFA which may contribute to excitotoxicity of these neurones as the disease progresses.
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Krarup C, Moldovan M. S3-2 Axonal conduction in degenerating and regenerating nerve fibers. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60048-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Cara RR, Nicola C, Prejmerean C, Sava S, Băciut G, Băciut M, Bran S, Bondor C, Prodan D, Moldovan M, Buruiană T, Pătraşcu I. Influence of Bis-GMA Derivative Monomer-Based Particulate Composite Resins on the Cuspal Deformation and Microleakage of Restored Teeth. PARTICULATE SCIENCE AND TECHNOLOGY 2010. [DOI: 10.1080/02726351.2010.481570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Moldovan M, Gibbons J, Chu C, Parker B. SU-FF-T-183: Helical Tomotherapy Treatment Plan Optimization for Superficial Chest Wall Irradiation Incorporating Intrafractional Motion. Med Phys 2009. [DOI: 10.1118/1.3181658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Moldovan M, Gibbons J, Chu C, Parker B. SU-FF-T-616: Influence of Respiratory Motion On Helical Tomotherapy Treatment Planning for Chest Wall Irradiation. Med Phys 2009. [DOI: 10.1118/1.3182114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Furtos G, Baldea B, Bratu D, Moldovan M, Silaghi-Dumitrescu L. Radiopacity of dental cements. Dent Mater 2009. [DOI: 10.1016/j.dental.2009.01.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ilie A, Ciocan D, Constantinescu A, Zagrean AM, Nita D, Zagrean L, Moldovan M. Endogenous Activation of adenosine A1 receptors promotes post-ischemic electrocortical burst suppression. Neuroscience 2009; 159:1070-8. [DOI: 10.1016/j.neuroscience.2009.01.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2008] [Revised: 12/12/2008] [Accepted: 01/14/2009] [Indexed: 10/21/2022]
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Moldovan M, Alvarez S, Krarup C. Motor axon excitability during Wallerian degeneration. Brain 2008; 132:511-23. [DOI: 10.1093/brain/awn332] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Moldovan M, Lee T, Chu C, Hogstrom K, Fields R, Gibbons J. SU-GG-T-477: Influence of Pitch and Jaw Width On Helical Tomotherapy Head and Neck Treatment Planning. Med Phys 2008. [DOI: 10.1118/1.2962226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Achim M, Tomuta I, Vlase L, Iuga C, Moldovan M, Leucuta S. Paclitaxel-loaded poly(lactic-co-glycolic acid) microspheres: preparation and in vitro evaluation. J Drug Deliv Sci Technol 2008. [DOI: 10.1016/s1773-2247(08)50080-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Donard O, Bruneau F, Moldovan M, Garraud H, Epov V, Boust D. Multi-isotopic determination of plutonium (239Pu, 240Pu, 241Pu and 242Pu) in marine sediments using sector-field inductively coupled plasma mass spectrometry. Anal Chim Acta 2007; 587:170-9. [DOI: 10.1016/j.aca.2007.01.047] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2006] [Revised: 01/10/2007] [Accepted: 01/16/2007] [Indexed: 10/23/2022]
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Abstract
AIM Following Wallerian degeneration, peripheral myelinated axons have the ability to regenerate and, given a proper pathway, establish functional connections with targets. In spite of this capacity, the clinical outcome of nerve regeneration remains unsatisfactory. Early studies have found that regenerated internodes remain persistently short though this abnormality did not seem to influence recovery in conduction. It remains unclear to which extent abnormalities in axonal function itself may contribute to the poor outcome of nerve regeneration. METHODS We review experimental evidence indicating that internodes play an active role in axonal function. RESULTS By investigating internodal contribution to axonal excitability we have found evidence that axonal function may be permanently compromised in regenerated nerves. Furthermore, we illustrate that internodal function is also abnormal in regenerated human nerves. CONCLUSION The data suggest that persistently shorter regenerated internodes lead to increased Na+/K+-pump activity in response to increased Na+ entry during conduction. This may impair axonal function during prolonged repetitive activity and drain the energy reserves of the axons.
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Moldovan M, Krarup C. P25.1 MTRACK, a software system to facilitate the development of threshold tracking methods. Clin Neurophysiol 2006. [DOI: 10.1016/j.clinph.2006.06.450] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Moldovan M, Leucuta S, Bakri A. Preparation, in vitro release and skin absorption of hydrocortisone acetate from a liposome gel. J Drug Deliv Sci Technol 2006. [DOI: 10.1016/s1773-2247(06)50019-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Thomas EL, Moldovan M, Young DP, Chan JY. Structural comparisons of three intermetallic antimonide families. Acta Crystallogr A 2005. [DOI: 10.1107/s0108767305085090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
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Millican JN, Young DP, Moldovan M, Chan JY. The crystal growth and structure and property relationships of Pr-Ni-Ga Phases. Acta Crystallogr A 2005. [DOI: 10.1107/s0108767305085089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Williams WM, Moldovan M, Young D, Chan JY. Corrigendum to ‘‘Synthesis, structure, and magnetism of Tb4PdGa12 and Tb4PtGa12”. J SOLID STATE CHEM 2005. [DOI: 10.1016/j.jssc.2005.04.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Furtos G, Cosma V, Prejmerean C, Moldovan M, Brie M, Colceriu A, Vezsenyi L, Silaghi-Dumitrescu L, Sirbu C. Fluoride release from dental resin composites. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2005. [DOI: 10.1016/j.msec.2005.01.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Young DP, Moldovan M, Wu XS, Adams PW, Chan JY. Low-temperature susceptibility of the noncentrosymmetric superconductor CePt3Si. PHYSICAL REVIEW LETTERS 2005; 94:107001. [PMID: 15783505 DOI: 10.1103/physrevlett.94.107001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2004] [Revised: 11/22/2004] [Indexed: 05/24/2023]
Abstract
We report ac susceptibility measurements of polycrystalline CePt(3)Si down to 60 mK and in applied fields up to 9 T. In a zero applied field, a full Meissner state emerges at temperatures T/T(c) < 0.3, where T(c) = 0.65 K is the onset transition temperature. Though transport measurements show a relatively high upper critical field B(c2) approximately 4-5 T, the low-temperature susceptibility chi(') is quite fragile to the applied field, with chi(') diminishing rapidly in fields of a few kG. Interestingly, the field dependence of chi(') is well described by the power law 4pichi(') + 1 = (B/B(c))(1/2), where B(c) is the field at which the onset of resistance is observed in transport measurements.
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Williams WM, Moldovan M, Young D, Chan JY. Synthesis, structure, and magnetism of Tb4PdGa12 and Tb4PtGa12. J SOLID STATE CHEM 2005. [DOI: 10.1016/j.jssc.2004.10.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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