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- 저자 : Rania Fathy (검색결과 3 건)
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Rania Ibrahim Shebl,Mohamed E. Amer,Tamer M. M. Abuamara,Emadeldin R. Matar,Hassan Fathy Ahmed,Tamer Albasyoni Gomah,Laila E. El Moselhy,Mohammed Abu-Elghait,Aly Fahmy Mohamed 대한백신학회 2021 Clinical and Experimental Vaccine Research Vol.10 No.3
Purpose: One of the essential goals regarding the successful control of rabies infection is the development of a safe, effective, and inexpensive vaccine. the current study aimed to evaluate the inactivation potential of β-propiolactone (βPL), binary ethyleneimine (BEI), and hydrogen peroxide (H2O2). Materials and Methods: Estimating the inactivation kinetics of βPL, BEI, and H2O2 revealed that the tested inactivants could completely and irreversibly inactivate rabies virus within 2, 12, and 4 hours, respectively while maintaining its viral immunogenicity. The potency of βPL, BEI, and H2O2 inactivated vaccines was higher than the World Health Organization acceptance limit and were in the order of 3.75, 4.21, and 3.64 IU/mL, respectively. Monitoring the humoral and cellular immunity elicited post-immunization using Staphylococcus aureus derived hyaluronic acid (HA) and bacillus Calmette-Guérin purified protein derivative (PPD) adjuvanted rabies vaccine candidates were carried out using enzyme-linked immunosorbent assay. Results: Results demonstrated that both adjuvants could progressively enhance the release of anti-rabies total immunoglobulin G as well as the pro-inflammatory mediators (interferon-gamma and interleukin-5) relative to time. However, a higher immune response was developed in the case of HA adjuvanted rabies vaccine compared to PPD adjuvanted one. The harmful consequences of the tested adjuvants were considered via investigating the histopathological changes in the tissues of the immunized rats using hematoxylin and eosin stain. Lower adverse effects were observed post-vaccination with HA and PPD adjuvanted vaccines compared to that detected following administration of the currently used alum as standard adjuvant. Conclusion: Our findings suggested that HA and PPD could serve as a promising platform for the development of newly adjuvanted rabies vaccines with elevated immune enhancing potentials and lower risk of health hazards.
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A. M. Salem,Rania Fathy 한국물리학회 2010 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.57 No.6
An analysis is presented to study the combined free-forced convective laminar boundary layer flow adjacent to a vertical continuously stretching sheet in the presence of a magnetic field with variable viscosity and thermal radiation. The velocity and the temperature of the sheet were assumed to vary in a power law form, that is, uw= Bxm and Tw(x) − T∞ = Axn. The governing equations for the problem were changed to dimensionless ordinary differential equations by using a similarity transformation. The transformed governing equations in the present study were solved numerically by using the Runge-Kutta and Shooting method. A comparison between the analytical and the numerical solutions has been included. The effects of the variable viscosity parameter, the mixed convection parameter G*=Frx Re2x, the radiation parameter N and the magnetic field parameter M are discussed through graphs. Graphical results illustrating interesting features of the physics of the problem are presented and discussed.
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Dahlia O. El-Haieg,Nadia M. Madkour,Mohammad Abd Alkhalik Basha,Reda A. Ahmad,Somayya M. Sadek,Rania M. Al-Molla,Engy Fathy Tantwy,Hosam Nabil Almassry,Khaled Mohamed Altaher,Nader E. M. Mahmoud,Sameh 대한초음파의학회 2019 ULTRASONOGRAPHY Vol.38 No.4
Purpose: The purpose of this study was to investigate magnetic resonance imaging (MRI) and 3-dimensional transperineal ultrasound (3D-TPUS) features of pelvic floor dysfunction (PFD) in symptomatic women in correlation with digital palpation and to define cut-offs for hiatal dimensions predictive of muscle dysfunction. Methods: This prospective study included 73 women with symptoms suggesting PFD. 3D-TPUS, MRI, and digital palpation of the levator ani muscle were performed in all patients. Levator hiatal antero-posterior (LHap) diameter and area (LH area) were measured at rest and at maximum muscle contraction. Results: The reduction in LHap diameter and LH area during contraction was significantly less in women with underactive pelvic floor muscle contraction (UpfmC) than in those who had normal pelvic floor muscle contraction by digital palpation (P<0.001). Statistically significant positive correlations (P<0.001) were found between the Modified Oxford Score and 3D-TPUS and MRI regarding the reduction in the LHap diameter (r=0.80 and r=0.82, respectively) and LH area (r=0.60 and r=0.70, respectively). A reduction in LHap of <6.5% on 3D-TPUS and <7.6% on MRI predicted UpfmC with sensitivities of 46.2% and 82.7%, respectively. A reduction in LH area of <3.4% on 3D-TPUS and <3.8% on MRI predicted UpfmC with sensitivities of 75.0% and 88.5%, respectively. MRI was more sensitive in detecting levator avulsion (63.4%) than 3D-TPUS (27.1%). Conclusion: MRI and 3D-TPUS had strong positive correlations with findings on palpation, and at certain cut-offs for hiatal dimensions, they can be used as complementary and objective tools to improve the accuracy of diagnosis and management planning of PFD.
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