asmaa_hassan1

اسماء ناصر محمد حسن

استاذ مساعد - استاد مساعد طب المناطق الحارة و الجهاز الهضمى

كلية الطب

العنوان: ش عبد اللطيف ابو حجى - طريق اسيوط سوهاج - امام مجمع المحاكم- مدينه سوهاج

15

إعجاب

المنشورات و المؤلفات التي تحتوي علي الكلمة المفتاحية: IR


2018-10-01 09:29:12 الكلمات المفتاحية HCV genotype 4, Steatosis, VAI, TyG, IR,
Insulin Resistance, Visceral Adiposity Index and TyG Index in Genotype-4 Chronic HCV Patients and Their Relation to Hepatic Histopathology
INTRODUCTION: Hepatitis C virus (HCV) genotype 4 is the most prevalent in Egypt. Vis-ceral adiposity index (VAI) and (TyG) index are newly developed indices for assess-ment of metabolic syndrome (MS) and insulin resistance (IR). We aimed at comparing their levels in HCV-patients with healthy controls and validate their use for prediction of hepatic histopathological changes. PATIENT AND METHODS: 78 chronic ... إقراء المزيد

2018-09-16 13:48:24 الكلمات المفتاحية DNA interaction, Antimicrobial, TEM, TGA, amino acid, Azomethine, IR, NMR,
Recent advances in synthesis, characterization and biological activity of nano sized Schiff base amino acid M (II) complexes
Azomethine amino ligands derived from the condensation of 3-methoxysalicylaldehyde (MS) or 4-diethylaminosalicylaldehyde (DS) with α-amino acids (L-phenylalanine (P) and DL-tryptophan (T)) were synthesized. All ligands were analyzed by IR, 1H NMR, 13C NMR and their melting points. Interaction of the obtained azomethine amino ligands with metal salts produced novel nano sized Fe (II) and Cu (II) complexes. The isolated complexes ... إقراء المزيد

2018-09-16 14:32:30 الكلمات المفتاحية Schiff base, amino acid, Fe(II), Teratogenicity, DNA interaction, antibacterial, Antifungal, high spin, Design, IR,
Design, characterization, teratogenicity testing, antibacterial, antifungal and DNA interaction of few high spin Fe(II) Schiff base amino acid complexes
In this study, new Fe(II) Schiff base amino acid chelates derived from the condensation of o-hydroxynaphthaldehyde with l-alanine, l-phenylalanine, l-aspartic acid, l-histidine and l-arginine were synthesized and characterized via elemental, thermogravimetric analysis, molar conductance, IR, electronic, mass spectra and magnetic moment measurements. The stoichiometry and the stability constants of the complexes were determined spectrophotometrically. Correlation of all spectroscopic data suggested ... إقراء المزيد

2018-09-16 13:40:18 الكلمات المفتاحية TGA, NMR, IR, Calf thymus DNA, Antimicrobial activity, Synthesis, characterization, Nano particle, DNA interaction,
Nano structure Iron (II) and Copper (II) Schiff base complexes of a NNO-tridentate ligand as new antibiotic agents: spectral, thermal behaviors and DNA binding ability
Complexes of Fe (II) and Cu (II) with a tridentate Schiff base, 2-((z)-(pyridine-2-ylimino) methyl) naphthalene1-ol derived from 2-hydroxy-1-napthaldehyde and 2-aminopyridine were synthesized. Both the ligand and its complexes were characterized on the basis of microanalysis, melting point, 1H and 13CNMR, molar conductivity, thermal analysis, IR and UV/Vis spectral studies. From analytical data, the stoichiometry of the complexes was found to ... إقراء المزيد

2018-09-11 15:03:04 الكلمات المفتاحية Amino acids, Imine, Molecular modeling, Antimicrobial, Antiviral, DNA, IR, TGA, complexes,
Synthesis, structure elucidation, biological screening, molecular modeling and DNA binding of some Cu(II) chelates incorporating imines derived from amino acids
Three tridentate Schiff bases amino acids were prepared by direct condensation of 3-methoxysalicylaldehyde (MS) or 4-diethylaminosalicylaldehyde (DS) with α-amino acid ligands [l-phenylalanine (P), l-histidine (H) and DL-tryptophan (T)]. The prepared Schiff bases amino acids were investigated by melting points, elemental analysis, 1HNMR and 13CNMR, IR, UV–Vis spectra, conductivity and magnetic measurements analyses. Subsequently, copper was introduced and Cu(II) complexes formed. ... إقراء المزيد

2018-09-11 12:23:27 الكلمات المفتاحية Carbon steel alloy, Corrosion inhibition, Schiff base compounds, EIS, SEM, Quantum chemical calculations, IR, NMR,
Corrosion inhibition of carbon steel pipelines by some novel Schiff base compounds during acidizing treatment of oil wells studied by electrochemical and quantum chemical methods
Three novel Schiff bases compounds were prepared and their structures were characterized by X-ray, 13C-NMR, 1H-NMR, mass, UV–Vis, FT-IR, spectral data and elemental analyses. The corrosion inhibition of the investigated inhibitors towards carbon steel in 15% HCl was investigated by using electrochemical measurements (EIS, LPR corrosion rate and Tafel plots), SEM, EDX and quantum chemical methods. The results showed that, ... إقراء المزيد

Sonochemical synthesis, DNA binding, antimicrobial evaluation and in vitro anticancer activity of nano-sized Cu(II), Co(II) and Ni(II) chelates  as precursors for metal oxides
Three new nano sized Cu(II), Co(II) and Ni(II) complexes of imine ligand derived from the condensation of 2-amino-3-hydroxypyridine and 3-methoxysalicylaldehyde have been prepared and investigated using various chemical techniques such as NMR, elemental analysis, molar conductance, IR, electronic spectra, TGA and magnetic momentmeasurements. The obtained chemical analysis data showed that the synthesis of 1:1 (metal:ligand) ratio and octahedral geometry was ... إقراء المزيد

Investigation of adsorption and inhibition effects of some novel anil compounds towards mild steel in H2SO4 solution: Electrochemical and theoretical quantum studies
A novel anil compounds, 1-{(_Z_)-[(3,5dimethylphenyl)imino]methyl}naphthalen-2-ol (HNMA) and 5- (diethylamino) -2- {(_Z_)- [(3,5-dimethylphenyl)imino] methyl} phenol (DMSMA), were prepared and characterized on the basis of elemental analyses, X-ray, 1H NMR, 13C NMR, UV–Vis and IR spectral data. Their inhibiting performance for mild steel in 0.5 M H2SO4solution was evaluated by a series of techniques including potentiodynamic polarization, electrochemical impedance spectroscopy, scanning electronic ... إقراء المزيد

Sonochemical synthesis, structural inspection and semiconductor behavior of three new nano sized Cu(II), Co(II) and Ni(II) chelates
Three novel nanosized Cu(II), Co(II) and Ni(II) complexes of imine ligand attained from the condensation of 2‐amino‐3‐hydroxypyridine and 3‐methoxysalicylaldehyde have been prepared and investigated using diverse chemical methods such as NMR, CHN analysis, conductance, IR, Spectral studies, TGA and magnetic moment measurements. The obtained data confirmed that the synthesized complexes have metal: ligand ratio of 1:1 and octahedral geometry for ... إقراء المزيد

2018-09-06 07:45:01 الكلمات المفتاحية imines, Structural elucidation, Antimicrobial, Screening, DNA binding, Anticancer efficiency, IR, NMR, TGA,
Development, structural investigation, DNA binding, antimicrobial screening and anticancer activities of two novel quari-dentate VO(II) and Mn (II) mononuclear complexes
Two novel VO(II) and Mn(II) imine chelates derived from the condensation of o-phenylenediamine (PN) with 3-ethoxysalicylaldehyde(ES) were synthesized. The prepared ESPN imine ligand and its chelates were investigated _via_ different analytical and physicochemical tools. Correlation between all the obtained results, the parent ligand behaves as tetra-dentate ONNO ligand and coordinates to Mn(II) and VO(II), in octahedral and square pyramidal geometry, ... إقراء المزيد