Evaluation of the catalytic activity of Zn-MOF-74 for the alcoholysis of cyclohexene oxide.

In the present work, nanocrystalline Zn-MOF-74 is shown to be a heterogeneous catalyst for the acid-catalyzed ring-opening alcoholysis of cyclohexene oxide. The results corroborated that accessible open metal sites within the material are critical conditions (Zn(ii) Lewis acid sites) for this reaction. Zn-MOF-74 was tested at three different temperatures (30, 40, and 50 °C) for the alcoholysis reaction. Furthermore, the cyclohexene oxide conversion was 94% in less than two days. A comparison of the catalytic activity with different crystal sizes of Zn-MOF-74 and the homogenous phase, zinc acetate, was conducted. Zn-MOF-74 exhibited excellent catalytic cyclability for three cycles without losing its activity. The material showed chemical stability by retaining its crystalline structure after the reaction and cyclability process.

SU-101: a Bi(III)-based metal-organic framework as an efficient heterogeneous catalyst for the CO2 cycloaddition reaction.

A non-porous version of SU-101 (herein n-SU-101) was evaluated for the CO2 cycloaddition reaction. The findings revealed that open metal sites (Bi3+) are necessary for the reaction. n-SU-101 displays a high styrene oxide conversion of 96.6% under mild conditions (3 bar and 80 °C). The catalytic activity of n-SU-101 demonstrated its potential application for the cycloaddition of CO2 using styrene oxide.

Programa de transición de nefrología pediátrica a la medicina del adulto: "Conduce tu salud" / Pediatric nephrology transition program to adult medicine: "Conduce tu salud"

Introducción: El adecuado seguimiento de los pacientes con una enfermedad renal crónica desde pediatría a la nefrología de adultos y/o atención primaria constituye un reto de coordinación y planificación. El objetivo de este trabajo es presentar el diseño del programa de transición de nefrología "Conduce tu salud", elaborado en el Hospital Clínico Universitario Virgen de la Arrixaca de Murcia. Material y métodos: Los pacientes incluidos en la transición son adolescentes seguidos en la consulta de nefrología pediátrica que comienzan el programa a partir de los 15-16 años. Es un programa integrativo y multidisciplinario que realiza una valoración global de la familia y de las necesidades del paciente de forma conjunta entre el nefrólogo pediatra y el de adultos. Incluye una valoración psicosocial y medioambiental para establecer patrones y planificar necesidades específicas del adolescente y su familia. En función de las habilidades y la madurez del paciente para "conducir su salud", el tránsito se realiza entre los 15 y los 18 años de edad (formularios evolutivos de bicicleta, moto y coche). Conclusiones: El programa "Conduce tu salud" establece un proceso planificado, coordinado y multidisciplinario, que se realiza de forma personalizada, integrativa, progresiva y consensuada con el adolescente, la familia y los profesionales. El programa permite una adecuada transferencia de una unidad pediátrica a una de adultos, especializada y de atención primaria

Introduction: The adequate follow-up of patients with chronic kidney disease from pediatrics to adult nephrology and/or primary care is a challenge of coordination and planning. Objective: Present the design of the nephrology transition program "Conduce tu salud" drawn up at the Hospital Clínico Universitario Virgen de la Arrixaca in Murcia. Material and methods: Patients included in the transition are adolescents followed in the pediatric nephrology clinic who begin the program from 15-16 years of age. It is an integrative and multidisciplinary program that makes a global assessment of the family and the needs of the patient together with a pediatric and adult nephrologist. It includes a psychosocial and environmental assessment to establish patterns and plan specific needs of adolescents and their families. Depending on the abilities and maturity of the patient to "lead their health", the transition is performed between 15 and 18 years of age (evolutionary forms of bicycle, motorcycle and car). Conclusions: The program "Conduce tu salud" establishes a planned, coordinated and multidisciplinary process that is carried out in a personalized, integrative, progressive and consensual way with the adolescent, family and professionals. The program allows adequate transition from pediatric to adult unit, specialized and primary care

Absence of clinical symptoms upon introduction of egg into the diet of milk-allergic infants not previously sensitised to egg

Background: It is unclear how many children suffering from IgE mediated cow's milk allergy are sensitised to egg in early life and what the clinical implication of this sensitisation is. It is also unclear if those not sensitised to egg in early life, do later on develop sensitisation and clinical allergy to egg. Methods: This study examines the prevalence of egg sensitisation among infants with allergy to cow's milk, prior to and following the introduction of egg and what this sensitisation clinically means. Results: The percentage of egg-sensitised children seen among the group of children with cow's milk allergy was 43.2%, and predictive factors for egg sensitisation are discussed. 81.8% of the sensitised patients presented with symptoms when exposed to egg in at least one of its forms, although up to 54.5% of patients tolerated boiled egg and egg-based products. Of the non-sensitised patients, the vast majority (92.5%) did not present with symptoms after the introduction of egg in their diet. Conclusions: Coexistence of allergy to egg and milk allergy is common, and it is recommended that these patients be monitored, since children who are sensitised to egg despite having never been exposed to it in their diet, may present with symptoms immediately following first ingestion. Most children who are initially non-sensitised to egg do not require special care, and it is not generally recommended to delay or monitor these children, although a small number may have subsequently reacted to egg(AU)

Absence of clinical symptoms upon introduction of egg into the diet of milk-allergic infants not previously sensitised to egg.

BACKGROUND: It is unclear how many children suffering from IgE mediated cow's milk allergy are sensitised to egg in early life and what the clinical implication of this sensitisation is. It is also unclear if those not sensitised to egg in early life, do later on develop sensitisation and clinical allergy to egg. METHODS: This study examines the prevalence of egg sensitisation among infants with allergy to cow's milk, prior to and following the introduction of egg and what this sensitisation clinically means. RESULTS: The percentage of egg-sensitised children seen among the group of children with cow's milk allergy was 43.2%, and predictive factors for egg sensitisation are discussed. 81.8% of the sensitised patients presented with symptoms when exposed to egg in at least one of its forms, although up to 54.5% of patients tolerated boiled egg and egg-based products. Of the non-sensitised patients, the vast majority (92.5%) did not present with symptoms after the introduction of egg in their diet. CONCLUSIONS: Coexistence of allergy to egg and milk allergy is common, and it is recommended that these patients be monitored, since children who are sensitised to egg despite having never been exposed to it in their diet, may present with symptoms immediately following first ingestion. Most children who are initially non-sensitised to egg do not require special care, and it is not generally recommended to delay or monitor these children, although a small number may have subsequently reacted to egg.

Expression and function of Cbl-b in T cells from patients with systemic lupus erythematosus, and detection of the 2126 A/G Cblb gene polymorphism in the Mexican mestizo population.

Systemic lupus erythematosus (SLE) is characterized by abnormalities in the function of T and B lymphocytes and in the signaling pathways induced through their receptors. Cbl-b is an intracellular adaptor protein that plays a key role in the negative regulation of lymphocyte activity. We explored the expression and function of Cbl-b in T lymphocytes from SLE patients. In addition, the possible association of SLE and a single nucleotide polymorphism (SNP) of the Cblb gene was determined. We studied 150 SLE patients, 163 healthy individuals, and 14 patients with rheumatoid arthritis (RA). The expression of Cbl-b was analyzed in the peripheral blood mononuclear cells, and the negative regulatory function of Cbl-b was assessed by analyzing actin polymerization and the phosphorylation of JNK and c-Jun induced through CD3. Furthermore, the 2126(A/G) SNP of the Cblb gene was detected by real-time polymerase chain reaction. We found a significant small reduction in the expression of Cbl-b as well as increased levels of activation of c-Jun and actin polymerization in T lymphocytes from patients with SLE compared with healthy controls or RA patients. In addition, a significant association between the 2126(A/G) SNP and SLE was detected. Our data suggest that Cbl-b may contribute to the deregulated activation of T lymphocytes observed in SLE.