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1. Surco del Músculo Iliopsoas y su Relación Clínica con la Cadera. Una Revisión.

Author

Mérida, L. Pérez, Lovera, F., Barría, G., and Olave, E.

Subjects
*ILIOPSOAS muscle, *SEARCH engines, *PELVIS, *LIGAMENTS, *HIP joint
Abstract

The iliopsoas muscle is the main hip flexor being an accessory lateral rotator of this, its fibers run posterior to the inguinal ligament, crossing anterior to the pelvis. This course occurs in a groove located between the iliopubic eminence medially and the anterior inferior iliac spine laterally. Although there are antecedents of this groove, no relevant comments are found in international anatomical terminology (IAT) as a groove within the pelvic bone reliefs. This groove is associated with the tendon in different hip dysfunctions, such as the hip snap (coxa saltans). The objective of the research is to expand the clinical and anatomical knowledge of this groove and its inclusion in international anatomical terminology. Within the inclusion criteria, articles published in Spanish and English were selected that referred to the groove and/or keywords such as "iliopsoas muscle", "iliopsoas muscle", "iliopsoas groove", "coxal groove", "iliopsoas groove". and “iliopsoas muscle” “coxal groove”. The search engines used were Pubmed, Google Scholar and Springer Link. The relevance of the iliopsoas muscle groove gives way to discussions regarding its shape and depth, as well as a point of reference associated with different clinical situations related to this groove and probable predispositions to injuries or snaps that occur in the hip. Finally, knowledge of the groove for the iliopsoas muscle is important to consider in research that addresses this region, as well as its ana [ABSTRACT FROM AUTHOR]

Published
2024
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3. An infrared study of galactic OH/IR stars. I. An optical/near-IR atlas of the Arecibo sample

Author

Jiménez-Esteban, F. M., Agudo-Mérida, L., Engels, D., and García-Lario, P.

Subjects
Astrophysics
Abstract

In this paper we present optical and near-infrared finding charts, accurate astrometry (~1") and single-epoch near-infrared photometry for 371 IRAS sources, 96% of those included in the so-called Arecibo sample of OH/IR stars (Eder et al. 1988; Lewis et al. 1990a; Chengalur et al. 1993). The main photometric properties of the stars in the sample are presented and discussed as well as the problems found during the process of identification of the optical/near-infrared counterparts. In addition, we also identify suitable reference stars in each field to be used for differential photometry purposes in the future. We find that 39% of the sources (144 in number) have no optical counterpart, 8 of them being invisible even at near infrared wavelengths. The relative distribution of sources with and without optical counterpart in the IRAS two-colour diagram and their characteristic near infrared colours are interpreted as the consequence of the increasing thickness of their circumstellar shells. Among the objects not detected at near infrared wavelengths four non-variable sources are proposed to be heavily obscured post-AGB stars which have just very recently left the AGB. Eight additional objects with unusually bright and/or blue near-infrared colours are identified as candidate post-AGB stars and/or proto-planetary nebulae., Comment: 28 pages, 9 figures, for associated finding charts see: http://www.edpsciences.org/articles/aa/full/2005/08/aa1709/FINDING_CHARTS/are cibo_index.html

Published
2004
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7. Assessing sugarcane brown rust resistance using Image analysis

Author

Mérida L. Rodríguez-Regal, Wilfre Abiche-Maceo, Reynaldo Rodríguez-Gross, María de la Luz La O Hechavarría, Mónica Tamayo-Isaac, and Yaquelin Puchades-Izaguirre

Subjects
0106 biological sciences, 0301 basic medicine, Resistance (ecology), Epidemiology, Biology, 01 natural sciences, Applied Microbiology and Biotechnology, Rust, 03 medical and health sciences, Horticulture, 030104 developmental biology, Infectious Diseases, 010606 plant biology & botany, Biotechnology
Abstract

Image analysis provides an accurate and precise method of pest evaluation. This work's objective was to compare the usefulness of the ImageJ® 1.43u image processor and visual estimation as methods to characterize brown rust lesions and estimate the resistance of new sugarcane cultivars. For this, leaves images of 10 cultivars were captured, and the parameters quantity, most regular size of the pustules, and leaf area affected were determined. The data were correlated with the eight control (standard) genotypes' evaluations to obtain a classification of disease resistance. The results showed that the software's determinations were the most accurate, although all the methods were reliable for rating the reaction to brown rust. Therefore, it is proposed to move away from visual disease assessment toward a system based on digital image analysis.

Published
2021
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11. Inervación del Músculo Braquiorradial en Individuos Brasileños: Aspectos Anatomo-clínicos de la Biometría de Origen y Distribución Nerviosa

Author

Pérez-Mérida, L, Melo, R, Sousa-Rodriguez, C. F, and Olave, E

Subjects
Músculo braquiorradial, Motor points, Biometry, Brachioradialis muscle, Inervación, Biometría, Innervation, Puntos motores, Anatomy, Anatomía
Abstract

RESUMEN: El nervio para el músculo braquiorradial (BR) ha sido utilizado en transferencias nerviosas para recuperaciones en funciones de la mano como consecuencias de lesiones que afectan el plexo braquial. Con el propósito de investigar el número y localización biométrica de los ramos primarios provenientes del nervio radial y puntos motores respecto un punto de referencia ubicado en la región del codo, se estudiaron 30 miembros superiores de individuos adultos brasileños, de la Universidad Estadual de Ciencias da Saúde de Alagoas, Maceió, Brasil. Las muestras se encontraban fijadas en solución de formaldehído al 10 %, de los cuales 15 miembros eran derechos y 15 izquierdos. Como punto de referencia se utilizó una línea que pasó a través de las partes más prominentes de los epicóndilos humerales, línea bi-epicondilea (LBE). Con respecto al origen nervioso para el músculo BR, todos los ramos se originaron a partir del nervio radial (NR). El promedio de la cantidad de Ramos Primarios (RP) fue de 1,53 (DS 0,73). En 18 muestras (60 %) se observó sólo un RP; en 8 casos (26,7 %) se encontraron 2 RP, mientras que en 4 casos (13,3 %) de la muestra se observaron 3 RP. Sobre la localización biométrica de los orígenes de los RP, es importante mencionar que todos se ubicaron proximal a la LBE. En promedio, estos se ubicaron a 38 mm (DS 0,9); 29 mm (DS 1,2) y 22 mm (DS 1,0) para el primer, segundo y tercer RP, respectivamente. En relación a los puntos motores (PM), en 4 casos (13 %) se observó 1 PM dado por la penetración directa de un ramo primario, en 13 casos (43 %) existieron 2 PM, en 8 casos (27 %) se encontraron 3 PM y en 5 casos (17 %) se observaron 4 PM. En tres casos (10 %) la inervación hacia el músculo BR emitió filetes nerviosos hacia el músculo extensor radial largo del carpo. Los resultados expuestos en esta investigación son un importante aporte para bloqueos nerviosos, estimulaciones eléctricas y transferencias nerviosas. SUMMARY: The nerve for the brachioradialis muscle (BR) has been used in nerve transfers for recoveries in functions of the hand as a consequence of lesions affecting the brachial plexus. With the purpose of investigating the number and biometric location of the primary branches coming from the radial nerve and motor points with respect to a reference point located in the elbow region, thirty upper limbs of Brazilian adult individuals from the State University of Sciences of Saúde de Alagoas, Maceió, Brazil were used. The samples were fixed in 10 % formaldehyde solution, of which 15 were right and 15 left. As a reference point, a line was used that passed through the most prominent parts of the humeral epicondyls, bi-epicondilar line (BEL). With respect to the nervous origin for the BR muscle, all the branches originated from the radial nerve (RN). The average number of primary branches (PB) was 1.53 (SD 0.73). In 18 samples (60 %) only one PB was observed; in 8 cases (26.7 %) 2 PB were found, while in 4 cases (13.3 %) of the sample 3 PB were observed. Regarding the biometric location of the origins of PB, it is important to mention that all were located proximal to the BEL. On average, these were located at 38 mm (SD 0.9); 29 mm (DS 1.2) and 22 mm (DS 1.0) for the first, second and third PB, respectively. In relation to the motor points (MP), in 4 cases (13 %) 1 MP was observed as direct penetration of the PB, in 13 cases (43 %) there were 2 MP, in 8 cases (27 %) they found 3 MP and in 5 cases (17 %) 4 MP were observed. In three cases (10 %) the innervation towards the BR muscle emitted nerve fillets towards the extensor carpi radialis longus muscle. The results presented in this investigation are an important contribution to nerve blocks, electrical stimulations and nerve transfers.

Published
2020

17. Inervación del Músculo Extensor Radial Largo del Carpo en Individuos Brasileños: Biometría de su Origen y Distribución

Author

Pérez-Mérida, L, Sousa-Rodrigues, C.F, and Olave, E

Subjects
Motor points, Extensor carpi radialis longus muscle, Puntos motores, Nervio radial, Anatomy, Anatomía, Radial nerve, Músculo extensor radial largo del carpo
Abstract

RESUMEN: El músculo extensor radial largo del carpo (MERLC) es un músculo localizado en el compartimiento posterior (extensor-supinador) del antebrazo y tiene gran importancia en el cierre del puño. Hay pocos estudios biométricos con respecto al punto de origen de sus ramos de inervación, así como sobre la distribución de los mismos. Basado en lo anterior, se estudiaron 30 miembros superiores, formolizados, de individuos adultos Brasileños, de la Facultad de Medicina de la Universidad Estadual de Ciencias da Saúde de Alagoas, Maceió, Brasil. Luego de localizar el nervio, se midió la distancia entre el origen del ramo primario y el de los puntos motores respecto a la línea biepicondílea (LBE), los cuales fueron visualizados y disecados utilizando una lupa. El nervio en cuestión, se observó a nivel del brazo o proximal a LBE en 28 casos (93 %) y los 2 restantes a nivel de esta línea (7 %). Los ramos para el ERLC se originaron a partir del nervio radial, observando un ramo primario en 20 miembros (80 %), y en los restantes 10 (20 %) se observaron 2 ramos primarios, promediando 1,3 ramos (DS 0,5). El origen más proximal del primer ramo primario (RP) independiente de que si existían 1 o 2 fue en promedio 3 cm (DS 1,0) proximal a LBE. El PM más distal, se ubicó distal a LBE en 24 casos con un promedio de 1,9 cm (DS 1,0); localización a nivel de LBE en 3 casos. Sólo en 3 casos el PM más distal se encontró proximal a LBE, en un promedio de 0,8 cm (DS 0,5). La distribución de puntos motores fue variable, ya que muchas veces los RP se bifurcaban en ramos secundarios y éstos, a su vez se dividían hasta 6 veces en ramos terciarios que penetraban en el músculo. El conocimiento biométrico del origen del nervio del MERLC, así como su distribución, es un aporte importante al área anátomo-quirúrgica, así como, su utilización en bloqueos nerviosos, transferencias nerviosas y zonas de ubicación de electrodos con propósitos de estimulación eléctrica en pacientes que necesiten rehabilitar la acción de musculatura extensora radial lesionada. SUMMARY: The extensor carpi radialis longus muscle (ECRLm) is located in the posterior compartment (extensorsupinator) of the forearm and has great importance in the closure of the hand. There are few biometric studies with respect to the point of origin of their branches of innervation, as well as on the distribution of them. For this study, 30 upper limbs, formalized, of Brazilian adult individuals were used, from the Faculty of Medicine of the Universidad Estadual de Ciencias da Saúde de Alagoas, Maceió, Brazil. After locating the nerve, we measured the distance between the origin of the primary branch and that of the motor points with respect to biepicondilar line (BEl), which were visualized and dissected using a magnifying glass. The nerve in question was observed at the level of the arm or proximal to BEl in 28 cases (93 %) and the remaining 2 at the level of this line (7 %). The branches for the ECRLm originated from the radial nerve, observing a primary branch in 20 limbs (80 %), and in the remaining 10 (20 %) two primary branches were observed, averaging 1.3 branches (SD 0.5). The most proximal origin of the first primary branch (PB) independent of whether there was 1 or 2 was on average 3 cm (SD 1.0) proximal to BEl. The most distal MP was distal to BEl in 24 cases with an average of 1.9 cm (SD 1.0); location at the BEl level in 3 cases. Only in 3 cases was the most distal MP found proximal to BEl, an average of 0.8 cm (SD 0.5). The distribution of motor points was variable, since many times the PB bifurcated into secondary branches and these, in turn, could divide up to 6 times in tertiary branches that penetrated in the muscle. The biometric knowledge of the origin of the nerve of the ECRLm, as well as its distribution, is an important contribution to the anatomo-surgical area, as well as its use in nerve blocks, nerve transfers and electrode placement areas for purposes of electrical stimulation in patients they need to rehabilitate the action of injured radial extensor musculature.

Published
2019

23. Inervación del Músculo Extensor Radial Corto del Carpo en Individuos Brasileños: Biometría de su Origen y Distribución

Author

Pérez-Mérida, L, Sousa-Rodrigues, C.F, and Olave, E

Subjects
Músculo extensor radial corto del carpo, Peripheral Innervation, Ramos musculares, Muscle Branches, Extensor Carpi Radialis Brevis Muscle, Inervación periférica, Anatomy, Anatomía, Upper limb, Miembro superior
Abstract

RESUMEN: El ramo de inervación para el músculo extensor radial corto del carpo (MERCC) ha sido utilizado para restablecer funciones de la musculatura del miembro superior en pacientes con lesiones medulares, del plexo braquial o de sus ramos terminales. El origen del nervio para el MERCC es variable, pudiendo originarse desde el tronco del nervio radial (NR), del ramo profundo de este nervio (RPNR) o del ramo superficial del mismo (RSNR). Con el propósito de complementar la anatomía sobre el origen y distribución del ramo para el MERCC, se utilizaron 30 miembros superiores, formolizados, de cadáveres de individuos Brasileños, localizados en los laboratorios de Anatomía de la Universidad Estadual de Ciencias da Saude, Maceió, Brasil. A través de disección se localizó el músculo y su inervación, determinando su origen, así como su distribución. Para efectuar la biometría, se consideró como referencia una línea transversal que pasaba entre las partes más prominentes de los epicóndilos lateral y medial del húmero (LBE), registrando la distancia entre esta línea y el punto de origen de este ramo muscular, así como la distancia entre la LBE y los puntos motores. El nervio para el MERCC se originó del RPNR en 50 % de los casos; desde el tronco principal del NR en 26, 7 % y desde el RSNR en 23, 3 %. La distancia entre el origen del ramo en estudio y la LBE fue en promedio de 23 ± 12 mm; la distancia entre el 1º, 2º y 3º punto motor respecto a la LBE fue de 55 ± 17 mm, 66 ± 17 mm y 79 ± 11 mm, respectivamente. La distribución de la inervación fue clasificada en 4 tipos en relación a sus puntos motores. Los resultados obtenidos son un importante aporte al conocimiento anatómico, así como a la neurocirugía en las transferencias nerviosas con propósitos de restauración de las funciones de músculos lesionados en el miembro superior. SUMMARY: The branch of the innervation for the extensor carpi radialis brevis muscle (ECRBm), has been used to reestablish muscle functions in the upper limbs of patients who have spinal cord injury, of the brachial plexus or its terminal branches. The origin of the ECRBm varies, and can originate from the trunk of the radial nerve (RN), from the deep branch of the radial nerve (DBRN), or from the superficial branch of the radial nerve (SBRN). In order to further complement the anatomy related to the origin and distribution of the ECRBm branch, 30 formolized upper limbs from Brazilian individuals, from the Universidad Estadual de Ciencias da Saude, Maiceió, Brazil were used. Through dissection, the muscle and its innervations was located, determining the origin of the branch as well as distribution. To determine biometry, a transversal reference line, which passed through the most prominent areas of the epicondyles of the humerus (BEL) was considered. The nerve for ECRBm originated from DBRN in 50 % of cases; from the main trunk of RN in 26.7 % and from SBRN in 23.3 %. The distance from the origin of the branch studied and the BEL was an average of 23 ± 12 mm; the distance from the first, second and third motor point to the BEL was 55 ± 17 mm, 66 ± 17 mm and 79±11 mm, respectively. The distribution of the innervation was classified in four types in relation to the motor points. The results are an important contribution to anatomical knowledge, as well as neurosurgery during nerve transfers to restore functions of damaged muscles in the upper limb.

Published
2018

25. Inervación del Músculo Braquiorradial en Individuos Brasileños: Aspectos Anatomo-clínicos de la Biometría de Origen y Distribución Nerviosa.

Author

Mérida, L. Pérez, Melo, R., Sousa Rodriguez, C. F., and Olave, E.

Subjects
*NEURAL stimulation, *RADIAL nerve, *BRACHIAL plexus, *ARM, *NERVE block, *INNERVATION
Abstract

The nerve for the brachioradialis muscle (BR) has been used in nerve transfers for recoveries in functions of the hand as a consequence of lesions affecting the brachial plexus. With the purpose of investigating the number and biometric location of the primary branches coming from the radial nerve and motor points with respect to a reference point located in the elbow region, thirty upper limbs of Brazilian adult individuals from the State University of Sciences of Saúde de Alagoas, Maceió, Brazil were used. The samples were fixed in 10 % formaldehyde solution, of which 15 were right and 15 left. As a reference point, a line was used that passed through the most prominent parts of the humeral epicondyls, bi-epicondilar line (BEL). With respect to the nervous origin for the BR muscle, all the branches originated from the radial nerve (RN). The average number of primary branches (PB) was 1.53 (SD 0.73). In 18 samples (60 %) only one PB was observed; in 8 cases (26.7 %) 2 PB were found, while in 4 cases (13.3 %) of the sample 3 PB were observed. Regarding the biometric location of the origins of PB, it is important to mention that all were located proximal to the BEL. On average, these were located at 38 mm (SD 0.9); 29 mm (DS 1.2) and 22 mm (DS 1.0) for the first, second and third PB, respectively. In relation to the motor points (MP), in 4 cases (13 %) 1 MP was observed as direct penetration of the PB, in 13 cases (43 %) there were 2 MP, in 8 cases (27 %) they found 3 MP and in 5 cases (17 %) 4 MP were observed. In three cases (10 %) the innervation towards the BR muscle emitted nerve fillets towards the extensor carpi radialis longus muscle. The results presented in this investigation are an important contribution to nerve blocks, electrical stimulations and nerve transfers. [ABSTRACT FROM AUTHOR]

Published
2020
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34. Thermodynamic Study of the NaCl + Na2SO4 + H2O System by Emf Measurements at Four Temperatures.

Author

Galleguillos-Castro, H., Hernández-Luis, F., Fernández-Mérida, L., and Esteso, M.A.

Abstract

Activity coefficients for sodium chloride in the NaCl + Na2SO4 + H2O ternary system were determined from emf measurements of the cell at 15, 25, 35, and 45°C and at total ionic strengths from 0.1 to 6 mol-kg−1. These activity coefficient were analyzed by using the Harned rule and the treatments of Scatchard–Rush–Johnson and Pitzer. The analysis of activity coefficients at “trace” concentration was also achieved and qualitatively interpreted by considering the ionic interactions that can take place in the mixed system. Finally, the excess Gibbs energy of the mixtures was calculated and qualitatively analyzed against the composition of the system. [ABSTRACT FROM AUTHOR]

Published
1999
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35. Thermodynamic Study of the NaCl + Na2SO4+ H2O System by Emf Measurements at Four Temperatures

Author

Galleguillos-Castro, H., Hernández-Luis, F., Fernández-Mérida, L., and Esteso, M.A.

Abstract

Activity coefficients for sodium chloride in the NaCl + Na2SO4+ H2O ternary system were determined from emf measurements of the cell $${\text{Na}} - {\text{glass|NaCl}}\left( {m_{\text{A}} } \right),\;{\text{Na}}_{\text{2}} {\text{SO}}_{\text{4}} \left( {m_{\text{B}} } \right),\;{\text{AgCl}}\left( {\text{s}} \right){\text{|Ag}}$$ at 15, 25, 35, and 45°C and at total ionic strengths from 0.1 to 6 mol-kg−1. These activity coefficient were analyzed by using the Harned rule and the treatments of Scatchard–Rush–Johnson and Pitzer. The analysis of activity coefficients at “trace” concentration was also achieved and qualitatively interpreted by considering the ionic interactions that can take place in the mixed system. Finally, the excess Gibbs energy of the mixtures was calculated and qualitatively analyzed against the composition of the system.

Published
1999
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38. Activity measurements in the ternary system NaBr+NaClO4+H2O at 25°C

Author

Hernández-Luis, F., Barrera, M., Galleguillos, H., Fernández-Mérida, L., and Pérez, M.

Abstract

The activity coefficients of sodium bromide in the ternary system NaBr+NaClO4+H2O were determined at 25°C and constant ionic strength of 0.1, 0.5, 1, 2, and 3 mol-kg−1 from emf of the cell without, liquid junction

Published
1996
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39. Activity coefficients in (electrolyte + amino acid)(aq) The dependence of the ion-zwitterion interactions on the ionic strength and on the molality of the amino acid analysed in terms of Pitzer's equations

Author

Rodríguez-Raposo, R., Fernández-Mérida, L., and Esteso, M. A.

Abstract

Activity coefficients for NaCl in aqueous solutions containing a variable molality of NH2CH2CO2H (glycine) were obtained from the e.m.f.s of the galvanic cell: Na-glass |NH2CH2CO2H (mA), NaCl (mB), AgCl|Ag, at different ionic strengths. They were fitted to a modified Pitzer equation by taking into account that the ion-zwitterion interactions depend on both the ionic strength and the zwitterion molality of the solution. Standard deviations for the fittings of about the same size as the accepted experimental uncertainty (± 0.10 mV, i.e. ± 0.0008 in lg γ ±) were found by neglecting the ion-zwitterion-zwitterion and ion ion-zwitterion interactions. Activity coefficients for NH2CH2CO2H in these aqueous mixtures were thus calculated. They agree well with the literature values obtained for more dilute solutions. Copyright 1994, 1999 Academic Press

Published
1994
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40. T cell activation through the CD43 molecule leads to Vav tyrosine phosphorylation and mitogen-activated protein kinase pathway activation.

Author

Pedraza-Alva, G, Mérida, L B, Burakoff, S J, and Rosenstein, Y

Abstract

CD43, the most abundant membrane protein of T lymphocytes, is able to initiate signals that lead to Ca2+ mobilization and interleukin-2 production, yet the molecular events involved in signal transduction pathway of the CD43 molecule are only beginning to be understood. We have shown recently that cross-linking CD43 on the cell surface of human T lymphocytes with the anti-CD43 monoclonal antibody L10 leads to CD43-Fyn kinase interactions and to Fyn phosphorylation on tyrosine residues. This interaction seems to be mediated by the SH3 domain of Fyn and a proline-rich sequence located in the cytoplasmic domain of CD43. Here we show that CD43-specific activation of human T lymphocytes induced tyrosine phosphorylation of the adaptor protein Shc and of the guanine exchange factor Vav, as well as the formation of a macromolecular complex that comprises Shc, GRB2, and Vav. CD43 ligation resulted in enhanced formation of Vav.SLP-76 complexes and in the activation and nuclear translocation of ERK2. Cross-linking of the CD43 molecule in 3T3-CD43(+) cells induced luciferase activity from a construct under the control of the Fos serum responsive element. Altogether, these data suggest that the mitogen-activated protein kinase pathway is involved in CD43-dependent interleukin-2 gene expression.

Published
1998

41. CD43-specific activation of T cells induces association of CD43 to Fyn kinase.

Author

Pedraza-Alva, G, Mérida, L B, Burakoff, S J, and Rosenstein, Y

Abstract

CD43, the most abundant membrane protein of T lymphocytes, is able to initiate signal transduction pathways that lead to Ca2+ mobilization and interleukin-2 production, yet the molecular events involved in CD43's signal transduction pathway are poorly understood. In the present report we show that activation of both purified T lymphocytes and Jurkat cells, through CD43 cross-linking with the anti-CD43 L10 monoclonal antibody, induced CD43 association to Fyn kinase. This association is mediated by the Src homology 3 (SH3) domain of Fyn, since a glutathione S-transferase-Fyn SH3 fusion protein was able to precipitate CD43 from lysates of CD43-activated T cells. A synthetic peptide containing the SH3 binding sites of p85, located within the amino acid sequence 300ERQPAPALPPKPPKP314, was able to inhibit binding of CD43 to Fyn as well as to the glutathione S-transferase-Fyn SH3 fusion protein. We also provide evidence that upon CD43 cross-linking, Fyn is tyrosine-phosphorylated in a time-dependent manner. Our results suggest that CD43 cross-linking on the T cell surface induces the interaction between CD43 and Fyn, presumably through the Fyn SH3 domain and a putative SH3 binding site in CD43, leading to Fyn tyrosine phosphorylation and signal propagation.

Published
1996

42. Comparative analysis of the activity coefficients for the system NaBr+NaFormate+H2O at 25°C by the methods of scatchard, pitzer and lim

Author

Esteso, M. A., Hernández-Luis, F., González-Díaz, O., Fernández-Mérida, L., Khoo, S. K., and Lim, T. K.

Abstract

Activity coefficients for NaBr in the system NaBr+NaFormate+H2O at 25°C were determined from emf measurements at different total ionic strengths. At each total ionic strength, the measurements were carried out at different Na-Formate/NaBr ionic strength ratios. The experimental activity coefficients were comparatively analyzed using Scatchard's, Pitzer's and Lim's methods. Although all these models can be successfully applied to the analysis of this mixed system, the All Mixing Coefficients (LA) and Consistency Test (LT) models lead to better fittings than the others.

Published
1991
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44. Clinical profile and satisfaction with anticoagulated treatment in patients with non-valvular atrial fibrillation attended in internal medicine and neurology departments of Spain,Perfil clínico y satisfacción con el tratamiento anticoagulante en pacientes con fibrilación auricular no valvular atendidos en consultas de medicina interna y neurología de España

Author

Reig-Roselló, G., Contreras, M. M., Suárez-Fernández, C., González-Hernández, A., Cardona, P., Pons-Amate, J. M., Martí-Fábregas, J., Vivancos, J., Pose, A., Díaz, J. A., Rodríguez, M., Pena, M., Arias, S., Larrosa, D., González, A., Rodríguez, E., González, M., Fernández, D., Barbagelata, C., Raña, N., Freire, S., Cerqueiro, J. M., Guerrero, H., Ramos, L., Álvarez, L., Lis, J. M., Caro, C., Seijo, M., Mederer, S., Zarraga, M. A., Ferreiro, J., Terrero, J. M., Arias, M., Pérez, R., Sánchez, J., Maciñeiras, J., Fernández, J., Jaén, F., Esteva, D., Zamora, M., Navarrete, N., García, J., Mérida, L., Corrales, M. A., Quirós, R., Cantero, J., Barrero, F. J., Villegas, I., Castro, J., Foronda, J., Carrillo, D., Vega, J., Trujillo, J. A., Montero, M., Jurado, A., Sánchez, C., Agüera-Morales, E., Sánchez, M., Durán, P., La Puerta, R. F., La Blanca, M. P., Martínez, M. P., Fernández, O., Tamayo, J. A., Bustamante, R., Serrano, P. J., Arjona, A., Payán, M., Gómez, R., Peña, D., Cabrerizo, E., Salgado, F., Georgieva, R. I., Gil-Núñez, A., Bello, E., Díaz, F., Medina, A., Castellano, A., Miranda, Y., Fabre, O., García Polo, I., Ibáñez, P., Sainz, C., Sierra, F., Aragón, E., Díaz, J., Aguilar, F., Ortega, M. A., Egido, J. A., Pontes, J. C., García, M. A., Cabrera, F., Batalla, B., Culla, A., Molina, C., Flores, A., Seró, L., Muchada, M., Meler, P., Sandra Boned Riera, Cánovas, D., Estela, J., Font, J., Purroy, F., Benabdelhak, I., Sanahuja, J., Roquer, J., Rodríguez, A., Ois, A., Cuadrado, E., Jiménez, J., Nogués, X., Kuprinski, J., Germán, A., Irigoyen, D., Cara, J. J., Font, M. A., Huertas, S., Martínez-Domeño, A., Arroyo, J. A., Delgado-Mederos, R., Gómez-Choco, M. J., Mengual, J. J., García, S. M., Castellanos, M. M., Eedenburg, C., Cañas, I., Espinosa, J., Montull, S., Quesada, H., Ustrell, X., Homedes, C., Navalpotro, I., Casanova, J., Lago, A. P., Morata, C., Gorriz, D., Moreno, I., Tembl, J., Ponz, A., Fonseca, M. J., Chamarro, R., Gil, R., Oliver, V., Pampliega, A., Artero, A., Puchades, F., Landete, L., Vilar, C., Jiménez, C., Vives, B., Moragues, M. D., Díaz, R., Tur, S., Escribano, J. B., Lucas, C., Martínez, F., Pons, J. M., Romero, A., García, D., Pérez, J., Villaverde, R., Martínez, S., Tejero, C., Pérez, C., Mostacero, E., Fernández, C., Luna, A., Pérez, T., González, F., Arce, A., Martínez, M., Díez, N., Gállego, J., Zandio, B., Herrera, M., Aymerich, N., Muñoz, R., Marta, J., Artal, J., Errea, J. M., Timiraos, J. J., Moreno, M. P., Freijo, M., García, J. M., Gil, M. C., Revilla, M. A., Palacio, E., Vázquez, J. L., Bestué, M., Latorre, A., Calvo, E., Ballester, L., Serrano, M., Juega, J. M., López, M. A., Irimia, P., Imaz, L., Fuentes, B., Sanz, B. E., Beltrán, L., Ruiz, G., Martínez, P., Sánchez, D., Barroso, E., Molina, I., Budiño, M. A., Masjuán, J., Felipe, A., Matute, C., Tejada, J., Morán, A., Fernández, E., Riveira, M. C., Carnedo, J., Manquillo, A., González, R., Fernández, J. C., Guillán, M., Yebra, M., Trejo, J. M., Saiz, J., Martínez-Acitores, J. C., Bravo, Y., Arenillas, J. F., Calleja, A., Cortijo, E., Reyes, J., López, L., Muñoz, P. L., Fidalgo, M. A., Hernández, J., Gómez, J. C., Morán, J. C., Gonzalo, S., Marrero, J., Satué, J. A., Belinchón, J. C., Moniche, F., Calderón, E., Escudero, I., La Torre, J., Casado, I., Antón, J., Portilla, J. C., Luengo, J., Rosal, J., Calzado, E., Anglada, J. C., Girón, J., Ramírez, J. M., Pijierro, A., Roa, A., Romero, J., Aguayo, M., Borrachero, C., Sanz, G., Gómez, M. J., Rico, M. A., Cayón, A., Carmona, E., Cerro, R., López, R., Aguirre, A., Lozano, F., and Rivera, J. M.

49. [Protective role of antiretroviral treatment in the impairment of renal function in a cohort of human immunodeficiency virus patients].

Author

Mérida L, de la Torre J, Olalla J, Noureddine M, del Arco A, Prada JL, Aguilar A, and García-Alegría J

Subjects
Adult, Anti-HIV Agents pharmacology, Antiretroviral Therapy, Highly Active, CD4 Lymphocyte Count, Cross-Sectional Studies, Didanosine adverse effects, Didanosine therapeutic use, Female, Glomerular Filtration Rate drug effects, HIV Infections physiopathology, Humans, Kidney drug effects, Kidney Diseases etiology, Male, Middle Aged, Prospective Studies, Viral Load, Anti-HIV Agents therapeutic use, HIV Infections drug therapy, Kidney physiopathology, Kidney Diseases prevention & control
Abstract

Background and Objective: To assess changes in renal function in a cohort of patients infected with the human immunodeficiency virus (HIV) and describe which factors are associated with deterioration., Patients and Methods: This was a prospective transversal study. The follow-up period was 12 months. Data were collected at baseline and one year including the glomerular filtration rate (GFR). We analyzed epidemiological data, comorbidities, CD4 lymphocytes, viral load, and AIDS status., Results: A total of 365 patients. Three hundred and thirteen (85%) were under highly active antiretroviral therapy (HAART); the median CD4 was 606 ± 314 and the CV was undetectable in 85%. At 1-year, we found a mean deterioration in the GFR of 9.7 ml/h. Eighty patients (21.8%) had a fall in GFR > 10 ml/h, while in 20 patients (5.8%) it was > 30 ml/h. An association was found regarding age, treatment with didanosine (DDI) and males (OR 1.89 95% CI 1.3 to 4.08, OR 2.3 95% CI 1.9 to 23 and OR 3.47 95% CI 1.6 to 14.20 respectively). We found a protective role of being under HAART (OR 0.54, 95% CI, 0.25 to 0.8)., Conclusions: There was a protective role of HAART in the deterioration of GFR of patients with HIV infection. Male gender, age and use of DDI were associated with worsening renal function. Tenofovir and protease inhibitors were not associated with further deterioration of renal function., (Copyright © 2010 Elsevier España, S.L. All rights reserved.)

Published
2011
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