Search results for "BOX"
showing 10 items of 2676 documents
CCDC 1873575: Experimental Crystal Structure Determination
2019
Related Article: Angeliki A. Athanasopoulou, Luca M. Carrella, Eva Rentschler|2019|Dalton Trans.|48|4779|doi:10.1039/C9DT00552H
Evaluación de los niveles plasmáticos de hepcidina en pacientes con anemia ferropénica y cáncer colorectal
2017
RESUMEN TESIS DOCTORAL TITULO: “Evaluación de los niveles plasmáticos de hepcidina en pacientes con anemia ferropénica y cáncer colorectal.” AUTOR: María Vila Montañés INTRODUCCIÓN El objetivo general de este trabajo fue determinar los niveles plasmáticos de hepcidina y su posible relación con el tratamiento con hierro intravenoso. El hierro es una terapia clave en el manejo de la anemia preoperatoria en los pacientes con cáncer colorectal. La anemia preoperatoria es una entidad prevalente en los pacientes con cáncer de colon, especialmente en los que están pendientes de intervención quirúrgica. Sus efectos nocivos han sido estudiados y actualmente se considera factor de riesgo de morbilida…
Cambios en el contenido miocárdico de hierro tras la administración de hierro intravenoso (Myocardial-IRON)
2021
Introducción: El tratamiento con hierro carboximaltosa (FCM) intravenoso (iv) ha mostrado mejorar los síntomas, capacidad funcional y calidad de vida, y reducir los ingresos por insuficiencia cardiaca (IC), en los pacientes con IC, fracción de eyección deprimida y déficit de hierro (DH). Sin embargo, los mecanismos subyacentes que expliquen estos beneficios siguen siendo inciertos. Asimismo, las secuencias de resonancia magnética cardiaca (RMC) T2* y T1 mapping, permiten cuantificar el contenido miocárdico de hierro y valores más bajos indican mayor concentración de hierro en el miocardio. Objetivo: El objetivo primario del estudio fue cuantificar mediante las secuencias de RMC T2* y T1 map…
The Echinoid hbox12/pmar1/micro1 multigene family: expression, functions and evolution
2017
Complexes of Glycolic Acid with Nitrogen Isolated in Argon Matrices. I. Structures and Thermal Effects.
2019
Molecular complexes between glycolic acid and nitrogen were studied in a low-temperature argon matrix with FTIR spectroscopy, and supported by MP2 and BLYPD3 calculations. The calculations indicate 11 and 10 stable complex structures at the MP2 and BLYPD3 levels of theories, respectively. However, only one hydrogen-bonded complex structure involving the most stable SSC conformer of glycolic acid was found experimentally, where the nitrogen molecule is bound with the carboxylic OH group of the SSC conformer. The complex shows a rich site structure variation upon deposition of the matrix in different temperatures and upon annealing experiments, which provide interesting prospects for site-sel…
Complexes of Glycolic Acid with Nitrogen Isolated in Argon Matrices. II : Vibrational Overtone Excitations
2019
Structural changes of glycolic acid (GA) complex with nitrogen induced by selective overtone excitation of the νOH mode were followed in argon matrices using FTIR spectroscopy. For the most stable SSC1 complex present in different trapping sites directly upon deposition site, selective changes in the νOH region were achieved upon near-infrared irradiation. Simultaneously, new conformers of the GA…N2 complex were formed, giving rise to several sets of bands in the νOH and νC=O regions of the spectra. Both position and intensity of new absorptions appeared to be highly sensitive on the wavelength of radiation used, as well as on the annealing of the matrix. Based on theoretical calculations a…
Complexes of Glycolic Acid with Nitrogen Isolated in Argon Matrices. I : Structures and Thermal Effects
2019
Molecular complexes between glycolic acid and nitrogen were studied in a low-temperature argon matrix with FTIR spectroscopy, and supported by MP2 and BLYPD3 calculations. The calculations indicate 11 and 10 stable complex structures at the MP2 and BLYPD3 levels of theories, respectively. However, only one hydrogen-bonded complex structure involving the most stable SSC conformer of glycolic acid was found experimentally, where the nitrogen molecule is bound with the carboxylic OH group of the SSC conformer. The complex shows a rich site structure variation upon deposition of the matrix in different temperatures and upon annealing experiments, which provide interesting prospects for site-sel…
effects of carboxyamidotriazole on Imatinib-resistant chronic myelogenous leukemia cells
2006
On the Complexation of Cu(II) and Cd(II) With Polycarboxyl Ligands. Potentiometric Studies With ISE-H+, ISE-Cu2+, and ISE-Cd2+
2009
The interaction of Cu2+ and Cd2+ ions with polyacrylates (PAA, 2 kDa and 100 kDa), polymetacrylate(PMA, 5.4 kDa), and alginate (AA, 70 kDa to 100 kDa) was studied by potentiometry, using ISE-Cu2+, ISE-Cd2+, and ISE-H+ electrodes. The investigations were performed in NaNO3 aqueous solutions, in the ionic strength range 0.10 e I (mol ·L-1) e 0.75, at T ) 298.15 K. The “diprotic-like model” was used to explain the acid-base behavior of the polycarboxylates under investigation (for this model, the monomeric unit of the polyelectrolyte is considered as a dicarboxylate). The results give evidence for the formation of the ML species in all the systems investigated. In addition, the MLH species was…
Monoamide Derivatives of EDTA Incorporating Pendent Carboxylates or Pyridyls: Synthesis, Metal Binding, and Crystal Structure of a Dinuclear Ca2+ Com…
2017
EDTA is a powerful, cheap and widely-used chelating unit for a large range of metal ions. To link it covalently to other molecules, the formation of an amide bond using one of the carboxylates is an attractive and simple approach, even though it may compromise metal ion binding as one of the four carboxylate donors is lost. Here we undertake a quantitative study of the metal ion binding of two new mono-amide derivatives of EDTA, namely AmGly1 and AmPy1, featuring an additional coordinating carboxylate or pyridyl group in the amide, respectively. The compounds are conveniently synthesised through alkylation of the tris-t-butyl ester of ethylenediamine-triacetic acid with the appropriate α-ch…