Helicobacter pylori cagA and vacA genotypes in Cuban and Venezuelan populations

The aim of this study was to determine the presence of Helicobacter pylori cytotoxin-associated gene (cagA)/vacuolating cytotoxin gene (vacA) among patients with chronic gastritis in Cuba and Venezuela. Gastric antrum biopsies were taken for culture, DNA extraction and PCR analysis. Amplification of vacA and cagA segments was performed using two regions of cagA: 349 bp were amplified with the F1/B1 primers and the remaining 335 bp were amplified with the B7629/B7628 primers. The VA1-F/VA1-R set of primers was used to amplify the 259-bp (s1) or 286-bp (s2) product and the VAG-R/VAG-F set of primers was used to amplify the 567-bp (m1) or 642-bp (m2) regions of vacA. cagA was detected in 87% of the antral samples from Cuban patients and 80.3% of those from Venezuelan patients. All possible combinations of vacA regions were found, with the exception of s2/m1. The predominant combination found in both countries was s1/m1. The percentage of cagA+ strains was increased by the use of a second set of primers and a greater number of strains was amplified with the B7629/B7628 primers in the Cuban patients (p = 0.0001). There was no significant difference between the presence of the allelic variants of vacA and cagA in both populations. The predominant genotype was cagA+/s1m1 in both countries. The results support the necessary investigation of isolates circulating among the human population in each region.

Día internacional de la mujer: la defensa de la igualdad en tiempos de crisis

Boletín semanal para profesionales sanitarios de la Secretaría General de Salud Pública, Inclusión y Calidad de Vida de la Consejería de Salud y Bienestar Social

"Crisis y calidad de vida", lema de las VI Jornadas de Salud Pública

Boletín semanal para profesionales sanitarios de la Secretaría General de Salud Pública, Inclusión y Calidad de Vida de la Consejería de Salud y Bienestar Social

La seguridad alimentaría y la crisis económica, a debate

Boletín semanal para profesionales sanitarios de la Secretaría General de Salud Pública, Inclusión y Calidad de Vida de la Consejería de Salud y Bienestar Social

En tiempos de crisis, salidas más saludables

Boletín semanal para profesionales sanitarios de la Secretaría General de Salud Pública y Participación Social de la Consejería de Salud

La red de alerta del sistema sanitario público de Andalucía, un dispositivo de respuesta inmediata ante posibles crisis

Boletín semanal para profesionales sanitarios de la Secretaría General de Salud Pública y Participación Social de la Consejería de Salud

Análisis de la proyección profesional del Grado de Ingeniería Informática y Telecomunicación : Viabilidad profesional en tiempos de crisis y benchmarking

El objetivo específico del TFG es el de realizar un análisis riguroso en base a fuentes externas y referencias de probada veracidad en relación a la oferta universitaria actual de estudios de Grado de Informática y Telecomunicación en España en la modalidad de e-learning o educación a distancia.

In vitro antimicrobial assessment of Cuban propolis extracts

Propolis is a resinous mixture of different plant exudates collected by honeybees. Currently, propolis is widely used as a food supplement and in folk medicine. We have evaluated 20 Cuban propolis extracts of different chemical types, brown (BCP), red and yellow (YCP), with respect to their in vitro antibacterial, antifungal and antiprotozoal properties. The extracts inhibited the growth of Staphylococcus aureus and Trichophyton rubrum at low µg/mL concentrations, whereas they were not active against Escherichia coli and Candida albicans. The major activity of the extracts was found against the protozoa Leishmania, Trypanosoma and Plasmodium, although cytotoxicity against MRC-5 cells was also observed. The BCP-3, YCP-39 and YCP-60 extracts showed the highest activity against P. falciparum, with 50% of microbial growth (IC50) values of 0.2 µg/mL. A positive correlation between the biological activity and the chemical composition was observed for YCP extracts. The most promising antimicrobial activity corresponds to YCP subtype B, which contains acetyl triterpenes as the main constituents. The present in vitro study highlights the potential of propolis against protozoa, but further research is needed to increase selectivity towards the parasite. The observed chemical composition-activity relationship of propolis can contribute to the identification of the active principles and standardisation of this bee product.

La crisis económica y las desigualdades sociales, el cambio climático y la reforma de la salud pública, a debate en el Congreso SESPAS 09

Boletín semanal para profesionales sanitarios de la Secretaría General de Salud Pública y Participación Social de la Consejería de Salud

Impacto de la crisis económica en la salud

Equipo de trabajo EASP: Guadalupe Carmona López, Luis Andrés López Fernández, Oscar Javier Mendoza García, Ignacio Oleaga de Usategui. No contiene fecha de edición.

La Unión Europea en la crisis del Líbano o la paradoja entre poder y querer

El conflicto de Oriente Próximo escribió una más de sus tantas páginas el pasado verano. A principios de julio, las milicias de Hezbollah secuestraron a dos soldados israelíes cerca de la frontera del Líbano y se lanzaron cohetes Katiuska hacia el norte de Israel. Este suceso provocó la respuesta armada israelí y el inicio de un largo verano de bombardeos en el sur del Líbano, en los suburbios de Beirut y en el norte de Israel. La escalada bélica se llevó a cabo delante de una comunidad internacional incapaz de responder con contundencia a la desproporcionada respuesta israelí y a los continuos ataques de Hezbollah en el norte de Israel. Por su lado, la Unión Europea evidenció la divergencia de pareceres entre sus 25 estados miembros. Así, mientras que países como Francia, España o Italia criticaban la desproporción de la actuación israelí; Reino Unido o Alemania reconocían a Israel el derecho a la legítima defensa.

U.S. subprime financial crisis contagion on BRIC and European Union stock markets

ABSTRACTThe Copula Theory was used to analyze contagion among the BRIC (Brazil, Russia, India and China) and European Union stock markets with the U.S. Equity Market. The market indexes used for the period between January 01, 2005 and February 27, 2010 are: MXBRIC (BRIC), MXEU (European Union) and MXUS (United States). This article evaluated the adequacy of the main copulas found in the financial literature using log-likelihood, Akaike information and Bayesian information criteria. This article provides a groundbreaking study in the area of contagion due to the use of conditional copulas, allowing to calculate the correlation increase between indexes with non-parametric approach. The conditional Symmetrized Joe-Clayton copula was the one that fitted better to the considered pairs of returns. Results indicate evidence of contagion effect in both markets, European Union and BRIC members, with a 5% significance level. Furthermore, there is also evidence that the contagion of U.S. financial crisis was more pronounced in the European Union than in the BRIC markets, with a 5% significance level. Therefore, stock portfolios formed by equities from the BRIC countries were able to offer greater protection during the subprime crisis. The results are aligned with recent papers that present an increase in correlation between stock markets, especially in bear markets.

[Album de photographies constitué par Francis Poulenc, 1921-1962] (manuscrit autographe)

Ancien possesseur : Poulenc, Francis (1899-1963)