Un reto biomédico: facilitar la disponibilidad informativa acerca de la relación entre la microbiota intestinal, medicamentos y vacunas / A biomedical challenge: to facilitate the availability of information about the relationship between gut microbiota, drugs and vaccines / Um desafio biomédico: facilitar a disponibilidade de informações sobre a relação entre a microbiota intestinal, medicamentos e vacinas

Resumen El personal biomédico carece de plataformas informatizadas que resuman los principales mecanismos de colaboración entre los microbios intestinales y los seres humanos en cuanto a la absorción y transformación de los medicamentos o vacunas y sus respuestas homeostáticas. Por esta razón, el presente trabajo tiene como objetivo aportar evidencias y recomendaciones para el diseño de una plataforma de consulta biomédica, referente a esta relación, lo cual permitirá la valoración de la posible inclusión de la taxa y abundancia microbiana intestinal en los protocolos de evaluación de la efectividad de los mismos. La encuesta realizada a un grupo de profesionales, destinada a la verificación de las posibilidades de acceso y especificidad de este tipo de información posibilitó la identificación de los tópicos principales para la conexión entre grupos de medicamentos, estructura tridimensional, moduladores y mediadores de la respuesta homeostática, biomarcadores, relación inter-reinos y mecanismos patogénicos, de manera que se fusione toda la información "ómica" humanomicrobiota en una plataforma dentro de la página del NCBI, la cual se propone que se denomine Pharmacolobiomic o Pharmaco-metagenomic. La información existe en las bases de datos contenidas en NCBI-NIH, según la búsqueda realizada y el filtrado a partir de 28 628 referencias. A partir de la presente propuesta se demostró la necesidad de contar con una plataformafarma cometagenómica que resuma el papel de la microbiota intestinal en el metabolismo y la efectividad de los fármacos y vacunas; así como disponer de la actualización sistemática para los profesionales en cuanto a la microbiota como biomarcador, en los protocolos de ensayos clínicos.

Abstract Biomedical staff lacks a computer platform that summarises the main mechanisms of collaboration between intestinal microbes and humans, related to the absorption and transformation of drugs and vaccines and their ho-meostatic responses. For this reason, the aim of this work is to provide some evidences and recommendations for the design of a biomedical consultation platform, about the relationship between the microbiota and the effect of drugs or vaccines. These evidences will support the assessment for inclu¬sion of taxa and gut microbial abundance, as a part of clinical protocols of effectiveness. The survey carried out on a group of biomedical professionals, aimed at verifying the possibilities of access and specificity of this type of information made it possible to identify the main topics for the connection between drug groups, three-dimensional structure, modulators and mediators of the homeostatic response, biomarkers, inter-kingdom relationship and pathogenic mechanismsin such a way that all the human-microbiota "omics" information will be shown into a sub-platform within NCBI-NIH, which could be called Pharmacolobiomic or Pharmaco-metagenomic. The information is present in the databases contained in the NCBI, taking into account this search and filtering, from 28 628 references. Based on this proposal, the need for a pharmacometagenomic platform that summarises the role of the intestinal microbiota in the metabolism and effectiveness of drugs and vaccines was demonstrated, as well as having the systematic update for professionals about the microbiota as a biomarker, in clinical trial protocols.

Resumo O pessoal biomédico carece de plataformas computadorizadas que resumam os principais mecanismosde colaboração entre micróbios intestinais e seres humanos, em termos de absorção e transformação demedicamentos e vacinas e suas respostas homeostáticas. Por essa razão, este trabalho visa fornecer evidênciase recomendações para o desenho de uma plataforma de consulta biomédica, referente a esta relação;o que permitirá avaliar a possível inclusão dos táxons e da abundância microbiana intestinal nosprotocolos de avaliação da sua eficácia. A pesquisa realizada em um grupo de profissionais, teve comoobjetivo verificar as possibilidades de acesso e especificidade desse tipo de informação; possibilitouidentificar os principais tópicos para a conexão entre grupos de medicamentos, estrutura tridimensional,moduladores e mediadores da resposta homeostática, biomarcadores, relação inter-reino, mecanismospatogênicos; de forma tal que toda a informação "ômica" humano-microbiota se funde em uma plataformadentro da página do NCBI, à qual se propõe ser chamada de Pharmacolobiomic ou Pharmacometagenomic. A informação existe nas bases de dados contidas em NCBI-NIH, tendo em conta a pesquisarealizada e a filtragem, a partir de 28 628 referências. Com base nessa proposta, foi demonstradaa necessidade de contar com uma plataforma farmacometagenômica que resuma o papel da microbiotaintestinal no metabolismo e eficácia de medicamentos e vacinas; além de ter a atualização sistemáticapara os profissionais quanto à microbiota como biomarcador, nos protocolos de ensaios clínicos.

Post-vaccination SARS-CoV-2 axillary adenopathy. Differences with axillary metastases from breast cancer.

The differential diagnosis of the metastatic axillary lymphadenopathies of breast cancer with which they occur secondary to the Pfizer-BioNTech vaccine against COVID-19, is imperative. In a series of cases, we analyzed the characteristics of unilateral axillary lymphadenopathy in patients after Pfizer-BioNTech vaccination. Axillary lymphadenopathy were observed ipsilateral to the vaccination arm. The axillary ultrasound defined these as reactive and that they disappeared in 3 weeks. The pathological findings were benign. The anamnesis, the place and date of vaccination and the radiological findings, play an essential role to carry out a correct differential diagnosis and follow-up of these adenopathies.

El diagnóstico diferencial de las adenopatías axilares metastásicas del cáncer de mama con las que se producen secundarias a la vacuna de Pfizer-BioNTech contra la COVID-19 es imperioso. Analizamos una serie de casos con las características de las adenopatías axilares unilaterales tras la administración de la vacuna de Pfizer-BioNTech. Se observaron adenopatías axilares homolaterales al brazo de vacunación. La ecografía axilar las definió como reactivas y que desaparecían en 3 semanas. Los hallazgos anatomopatológicos fueron de benignidad. La anamnesis, el lugar y la fecha de vacunación, así como los hallazgos radiológicos, desempeñan un papel esencial para realizar un correcto diagnóstico deferencial y el seguimiento de estas adenopatías.

Trachoma Rapid Assessments in Venezuela, an Example of the Integration of Data Gathering with Service Delivery in Hard-to-reach Populations.

A) PURPOSE: The objective of the study was to assess the presence of trachoma in high priority districts in the Amazon state of Venezuela (the Bolivarian Republic of), and use trachoma data gathering platform to offer integrated primary health care services to underserved hard-to-reach populations living in the border with Colombia. B) METHODS: Trachoma Rapid Assessments (TRA) were conducted in indigenous communities of three municipalities of the Amazonas State of Venezuela from June 2018 to April 2019 using the World Health Organization (WHO) guidelines. Integrated health services were delivered based on the identified needs of the population of the assessed communities. C) RESULTS: 1,185 children aged 1-9 years were examined for trachoma in the three municipalities, of which 6.92% had active trachoma; 994 people 15 years and above were examined for trachomatous trichiasis (TT) finding two cases (0.2%). 1,635 people were examined for other health-related problems and the most common diagnoses were intestinal parasites (54.74%), eye diseases (16.81%), cavities (7.34%), scabies (5.56%), headache (4.40%), and malaria (2.81%); additionally, 2,233 vaccine doses were provided to children and adults to complete vaccination series. D) CONCLUSION: The results of the TRA in the Amazon state of Venezuela suggest that trachoma could be a public health problem and standardized population-based surveys to establish the prevalence and determine the interventions to implement are needed.

Effects of Peppermint Extract and Chitosan-Based Edible Coating on Storage Quality of Common Carp (Cyprinus carpio) Fillets.

Edible coatings have recently been developed and applied to different food matrices, due to their numerous benefits, such as increasing the shelf life of foods, improving their appearance, being vehicles of different compounds, such as extracts or oils of various spices that have antioxidant and antimicrobial activity, as well as being friendly to the environment. The objective of this research was to develop a new edible coating based on chitosan enriched with peppermint extract and to evaluate its effectiveness to inhibit microbial development in vitro and improve both the quality and shelf life of common carp (Cyprinus carpio) during refrigerated storage (4 ± 1 °C). Three treatments were used: edible coating (C + EC), edible coating +, 5% chitosan (C + ECCh) and edible coating + 1.5% chitosan + 10% peppermint (C + ECChP). Prior the coating carp fillets; the antibacterial activity and antioxidant capacity were evaluated in the peppermint extract and coating solutions. After coating and during storage, the following were determined on the fillet samples: microbiological properties, observed for ECP, an inhibition halo of 14.3 mm for Staphylococcus aureus, not being the case for Gram-negative species, for ECCh, inhibition halos of 17.6 mm, 17.1 mm and 16.5 mm for S. aureus, Salmonella typhimurium and Escherichia coli, respectively; for the ECChP, inhibition halos for S. aureus, S. typhimurium and E. coli of 20 mm, 17 mm and 16.8 mm, respectively. For the physicochemical characteristics: an increase in solubility was observed for all treatments during storage, reaching 46.7 mg SN protein/mg total protein for the control, and values below 29.1 mg SN protein/mg total protein (p < 0.05), for fillets with EC (C + EC > C + ECCh > C + ECChP, respectively at the end of storage. For the pH, maximum values were obtained for the control of 6.4, while for the fillets with EC a maximum of 5.8. For TVB-N, the fillets with different CE treatments obtained values (p < 0.05) of 33.3; 27.2; 25.3 and 23.3 mg N/100 g (control > C + E C > C + ECCh > C + ECChP respectively). Total phenolic compounds in the aqueous peppermint extract were 505.55 mg GAE/100 g dried leaves, with 98.78% antioxidant capacity in the aqueous extract and 81.88% in the EC. Biomolecule oxidation (hydroperoxide content) had a significant increase (p < 0.05) in all treatments during storage, 1.7 mM CHP/mg protein in the control, to 1.4 in C + EC, 1.27 in C + ECCh and 1.16 in C + ECChP; TBARS assay values increased in the different treatments during refrigerated storage, with final values of 33.44, 31.88, 29.40 and 29.21 mM MDA/mg protein in the control; C + EC; C + ECCh and C + ECChP respectively. In SDS -PAGE a protective effect was observed in the myofibrillar proteins of fillets with ECChP). The results indicate that the C + ECCh and C + ECChP treatments extend the shelf life of 3-5 days with respect to microbiological properties and 4-5 days with respect to physicochemical characteristics. A reduction in lipid and protein oxidation products was also observed during refrigerated storage. With these findings, this is considered a promising method to increase the shelf life of fish fillets combined with refrigeration and we are able to recommend this technology for the fish processing industry.

Kelch13 mutations in Plasmodium falciparum and risk of spreading in Amazon basin countries.

BACKGROUND: The first potential focus for artemisinin resistance in South America was recently confirmed with the presence of the C580Y mutation in the Plasmodium falciparum kelch 13 gene (pfk13) in Guyana. OBJECTIVES: This study aimed to strengthen pfk13 monitoring in the Amazon basin countries, to compile the available data and to evaluate the risk of spreading of mutations. METHODS: Sanger sequencing was done on 862 samples collected between 1998 and 2019, and a global map of pfk13 genotypes available for this region was constructed. Then, the risk of spreading of mutations based on P. falciparum case importation between 2015 and 2018 within countries of the Amazon basin was evaluated. RESULTS: No additional pfk13 C580Y foci were identified. Few mutations (0.5%, 95% CI = 0.3%-0.8%) in the propeller domain were observed in the general parasite population of this region despite a high proportion of K189T mutations (49.1%, 95% CI = 46.2%-52.0%) in the non-propeller domain. Case information revealed two patterns of intense human migration: Venezuela, Guyana and the Roraima State in Brazil; and French Guiana, Suriname and the Amapá State in Brazil. CONCLUSIONS: There are few pfk13 mutant foci, but a high risk of dispersion in the Amazon basin, mainly from the Guiana Shield, proportionate to mining activities. Therefore, access to prompt diagnosis and treatment, and continuous molecular monitoring is essential in these geographical areas.

Prime Vaccination with Chitosan-Coated Phipps BCG and Boosting with CFP-PLGA against Tuberculosis in a Goat Model.

Attempts to improve the immune response and efficacy of vaccines against tuberculosis in cattle, goats, and other animal species have been the focus of research in this field during the last two decades. Improving the vaccine efficacy is essential prior to running long-lasting and expensive field trials. Studies have shown that vaccine protocols utilizing boosting with proteins improve the vaccine efficacy. The use of polymers such as chitosan and PolyLactic-co-Glycolic Acid (PLGA) improves the immune response against different diseases by improving the interaction of antigens with the cellular immune system and modulating the host immune response. This study shows that the prime BCG vaccination, boosted with a culture filtrate protein (CFP), alone or in combination with chitosan and PolyLactic-co-Glycolic Acid (PLGA), have the potential to reduce tuberculosis (TB) dissemination by reducing the number of animals with lesions, the number of lesions per animal, and the size of the lesions in vaccinated animals, compared with those not vaccinated or those vaccinated with BCG alone. The vaccinated groups showed significantly higher Interferon-γ levels in the blood compared to the control, nonvaccinated group after vaccination, after boosting, and after the challenge with the wild-type Mycobacterium bovis strain.

Metal(loid) exposure on children from a historical metallurgical site.

The data obtained in this study represent a comprehensive assessment of human exposure to metal(loids) enriched in the environment, derived from metallurgical activities in Cedral, a town in North-Central Mexico. A multi-elemental analysis (As, Cd, Cr, Cu, Fe, Mn and Sb) shows high metal(loid) content in environmental media (tailings samples, dust samples and particulate matter < 2.5 µm collected in the urban area). Blood samples from school-age children were collected and analyzed to determine exposure levels. The assessment of the data obtained from this study shows that Sb and Cd are highly enriched elements in the environment of Cedral; their respective levels in the blood samples analyzed are 10.9 and 11.3 times higher than their pediatric reference levels. The statistical analysis indicates a strong relationship between metal(loid)s in blood samples and both dust and PM2.5 samples, which reveal that ingestion and inhalation could represent important exposure routes for metal(loid) intake. Continuous monitoring in the area is paramount to assess the health impact posed by the different routes of exposure. It is also important to implement health education programs to decrease the population's exposure to metal(loid)s and to design urgent remediation measures, to be implemented as soon as possible.

Detyrosinated microtubules spatially constrain lysosomes facilitating lysosome-autophagosome fusion.

Microtubule post-translational modifications impart functional diversity to microtubules by affecting their dynamics, organization, and interaction with proteins. Using super-resolution microscopy, we show that only a small subpopulation of microtubules are detyrosinated in epithelial cells, while acetylated and tyrosinated microtubules comprise the majority of all microtubules. Surprisingly, lysosomes are enriched by approximately threefold on detyrosinated microtubules. Further, their motility on detyrosinated microtubules is impaired, showing shorter runs and more frequent and longer pauses. Lysosome enrichment is mediated through a kinesin-1-dependent mechanism, since knocking down this motor abolishes enrichment. Finally, correlative live-cell and super-resolution microscopy showed that lysosomes interact with autophagosomes on detyrosinated microtubules. Removal of detyrosinated microtubules or knockdown of kinesin-1 leads to a decrease in the percentage of autolysosomes, a fusion intermediate of autophagosomes and lysosomes. Taken together, our data reveal a new role of detyrosinated microtubules as hubs that spatially concentrate lysosomes on a small subset of microtubules and facilitate their interaction and fusion with autophagosomes to initiate autophagy.

Human ß-defensin 1 update: Potential clinical applications of the restless warrior.

Human ß-defensin 1 (hBD-1) is a multifaceted antimicrobial peptide being a tumour suppressor and, depending on call of duty, capable of inducing self-nets and neutrophil extracellular traps (NETs) to capture and/or kill bacteria, participates in inflammatory responses in chronic diseases including hBD-3 upregulation and also capable of up/downregulation in the presence of certain species of Lactobacillus sp. Thus, is regulated by host microbiota. Alleles, genotypes and/or altered gene expression of its coding gene, DEFB1, have been associated with several human diseases/conditions ranging from metabolic/chronic (e.g. cancer), infectious (e.g. tuberculosis, HIV/AIDS), inflammatory (gastrointestinal diseases), male infertility and more recently, neurologic (e.g. depression and Alzheimer) and autoimmune diseases (e.g. vitiligo and systemic lupus erythematosus). The present update focuses on novel DEFB1/hBD-1 properties and biomarker features, its biological function and the pharmaceutical potential uses of antimicrobial peptide elicitors (APEs) or the engineered peptide in the treatment of hBD-1-related human diseases.

Cytokine Signatures Discriminate Highly Frequent Acute Hepatitis a Virus and Hepatitis E Virus Coinfections from Monoinfections in Mexican Pediatric Patients.

The frequency of hepatitis A virus and hepatitis E virus infections and their cytokine profiles were analyzed in Mexican pediatric patients with acute hepatitis. A high frequency of coinfections was found. Significant overexpression of interleukin (IL)-4, IL-12, IL-13 and interferon-gamma during hepatitis A virus monoinfections and limited secretion of cytokines in hepatitis E virus infections were observed.

Colostrum proinflammatory cytokines as biomarkers of bovine immune response to bovine tuberculosis (bTB).

Bovine colostrum contains compounds, which provide passive immune protection from mother to newborn calves. Little is known about cytokine levels and their role in bovine colostrum. Moreover, the capacity of bovine colostrum cells to mount specific immune responses after natural exposure to bovine tuberculosis (bTB) antigens in dairy herds has not been studied, thus far. The purpose of this study was to identify biomarkers for bTB infection measurable in bovine colostrum. The present study reveals that isolated-immune colostrum cells can mount a specific immune response against bTB antigens, by measuring the novo IFN-γ release in cell culture. We found that IFN-γ levels in the responders (Bov+) to bTB antigen were higher than in non-responders (Bov-). On the other hand, proinflammatory cytokines contained in colostrum's whey were tested in Tuberculin Skin Test (TST) reactor (TST+) and non-reactor (TST-) animals to assess their potential role as biomarker. We observed that IFN-γ levels were lower or undetectable, as opposed to IL4 levels were measurable, the TNF-α level was higher in TST- than TST+, while IL-6 levels showed the opposite reaction and with no statistical significance. Moreover, IL-1α mRNA expression levels were higher in colostrum mononuclear cells (CMC) in Bov+ cattle. Collectively, these data suggest that the differential expression of pro and anti-inflammatory cytokines could have relevant value to diagnose bTB in cattle.

[Translation into practice of empowerment strategies for dengue prevention: facilitators and barriers]. / Traslación a la práctica de estrategias de empoderamiento en la prevención del dengue: facilitadores y barreras.

Objective To identify facilitators and barriers to the process of translating community empowerment strategies into the practice of the national Aedes aegypti control program in Cuba. Methods A case study of the process was conducted from 2005 to 2009 at national and provincial levels of the control program. Data from participant observation, in-depth interviews, and document analysis were triangulated and analyzed inductively and deductively. Results The main facilitators identified included a proposal for an empowerment strategy effective in reducing Aedes aegypti infestation, which was explained in such a way that it could be implemented by program staff; and a control program with national coverage capable of implementing the proposal. The principal barriers were the complexity of the strategy and the absence of organizational changes needed to facilitate its insertion into the control program. Each barrier or facilitator identified was either static or dynamic in nature. Dynamic factors are those that offer signals for action. Conclusions Multiple barriers and facilitators influence the process of translating community empowerment strategies into the practice of the Cuban Aedes aegypti control program. The analysis of these factors as either static or dynamic makes it possible to design more appropriate and effective strategies that can promote the process and increase the likelihood of success.

Traslación a la práctica de estrategias de empoderamiento en la prevención del dengue: facilitadores y barreras / Translation into practice of empowerment strategies for dengue prevention: facilitators and barriers

Objetivo. Identificar facilitadores y barreras del proceso de traslación de estrategias de empoderamiento comunitario a la práctica del programa nacional de control de Aedes aegypti en Cuba. Métodos. Se realizó un estudio de caso del proceso en el período 2005–2009 en los niveles nacional y provincial del programa de control. Se triangularon datos procedentes de la observación participante, la entrevista en profundidad y el análisis de documentos, que se analizaron inductiva y deductivamente. Resultados. Entre los facilitadores destacan la existencia, por un lado, de una propuesta de estrategia de empoderamiento efectiva en la reducción de la infestación por Aedes aegypti, que estaba descrita de manera que pudiera ser implementada por el personal del programa y, por otro lado, de un programa de control con cobertura nacional dispuesto a ponerla en práctica. Las principales barreras fueron la complejidad propia de la estrategia y la ausencia de cambios organizacionales que facilitaran su inserción dentro del programa. Tanto las barreras como los facilitadores fueron de naturaleza estática o dinámica. Los factores dinámicos son aquellos que ofrecen señales para la acción. Conclusiones. Son múltiples las barreras y facilitadores del proceso de traslación a la práctica de las estrategias de empoderamiento comunitario en el programa nacional de control de Aedes aegypti en Cuba. Su análisis como factores de naturaleza estática y dinámica permitiría diseñar estrategias más adecuadas y eficaces para impulsar el proceso e incrementaría sus probabilidades de éxito.

Objective. To identify facilitators and barriers to the process of translating community empowerment strategies into the practice of the national Aedes aegypti control program in Cuba. Methods. A case study of the process was conducted from 2005 to 2009 at national and provincial levels of the control program. Data from participant observation, in-depth interviews, and document analysis were triangulated and analyzed inductively and deductively. Results. The main facilitators identified included a proposal for an empowerment strategy effective in reducing Aedes aegypti infestation, which was explained in such a way that it could be implemented by program staff; and a control program with national coverage capable of implementing the proposal. The principal barriers were the complexity of the strategy and the absence of organizational changes needed to facilitate its insertion into the control program. Each barrier or facilitator identified was either static or dynamic in nature. Dynamic factors are those that offer signals for action. Conclusions. Multiple barriers and facilitators influence the process of translating community empowerment strategies into the practice of the Cuban Aedes aegypti control program. The analysis of these factors as either static or dynamic makes it possible to design more appropriate and effective strategies that can promote the process and increase the likelihood of success.

Traslación a la práctica de estrategias de empoderamiento en la prevención del dengue: facilitadores y barreras / Translation into practice of empowerment strategies for dengue prevention: facilitators and barriers

RESUMEN Objetivo Identificar facilitadores y barreras del proceso de traslación de estrategias de empoderamiento comunitario a la práctica del programa nacional de control de Aedes aegypti en Cuba. Métodos Se realizó un estudio de caso del proceso en el período 2005–2009 en los niveles nacional y provincial del programa de control. Se triangularon datos procedentes de la observación participante, la entrevista en profundidad y el análisis de documentos, que se analizaron inductiva y deductivamente. Resultados Entre los facilitadores destacan la existencia, por un lado, de una propuesta de estrategia de empoderamiento efectiva en la reducción de la infestación por Aedes aegypti, que estaba descrita de manera que pudiera ser implementada por el personal del programa y, por otro lado, de un programa de control con cobertura nacional dispuesto a ponerla en práctica. Las principales barreras fueron la complejidad propia de la estrategia y la ausencia de cambios organizacionales que facilitaran su inserción dentro del programa. Tanto las barreras como los facilitadores fueron de naturaleza estática o dinámica. Los factores dinámicos son aquellos que ofrecen señales para la acción. Conclusiones Son múltiples las barreras y facilitadores del proceso de traslación a la práctica de las estrategias de empoderamiento comunitario en el programa nacional de control de Aedes aegypti en Cuba. Su análisis como factores de naturaleza estática y dinámica permitiría diseñar estrategias más adecuadas y eficaces para impulsar el proceso e incrementaría sus probabilidades de éxito.

ABSTRACT Objective To identify facilitators and barriers to the process of translating community empowerment strategies into the practice of the national Aedes aegypti control program in Cuba. Methods A case study of the process was conducted from 2005 to 2009 at national and provincial levels of the control program. Data from participant observation, in-depth interviews, and document analysis were triangulated and analyzed inductively and deductively. Results The main facilitators identified included a proposal for an empowerment strategy effective in reducing Aedes aegypti infestation, which was explained in such a way that it could be implemented by program staff; and a control program with national coverage capable of implementing the proposal. The principal barriers were the complexity of the strategy and the absence of organizational changes needed to facilitate its insertion into the control program. Each barrier or facilitator identified was either static or dynamic in nature. Dynamic factors are those that offer signals for action. Conclusions Multiple barriers and facilitators influence the process of translating community empowerment strategies into the practice of the Cuban Aedes aegypti control program. The analysis of these factors as either static or dynamic makes it possible to design more appropriate and effective strategies that can promote the process and increase the likelihood of success.

Long-term evolution after in-hospital cardiac arrest in children: Prospective multicenter multinational study.

OBJECTIVE: The main objective was to study survival and neurologic evolution of children who suffered in-hospital pediatric cardiac arrest (CA). The secondary objective was to analyze the influence of risk factors on the long term outcome after CA. METHODS: prospective, international, observational, multicentric study in 48 hospitals of 12 countries. CA in children between 1 month and 18 years were analyzed using the Utstein template. Survival and neurological state measured by Pediatric Cerebral Performance Category (PCPC) scale one year after hospital discharge was evaluated. RESULTS: 502 patients with in-hospital CA were evaluated. 197 of them (39.2%) survived to hospital discharge. PCPC at hospital discharge was available in 156 of survivors (79.2%). 76.9% had good neurologic state (PCPC 1-2) and 23.1% poor PCPC values (3-6). One year after cardiac arrest we could obtain data from 144 patients (28.6%). PCPC was available in 116 patients. 88 (75.9%) had a good neurologic evaluation and 28 (24.1%) a poor one. A neurological deterioration evaluated by PCPC scale was observed in 40 patients (7.9%). One year after cardiac arrest PCPC scores compared to hospital discharge had worsen in 7 patients (6%), remained constant in 103 patients (88.8%) and had improved in 6 patients (5.2%). CONCLUSION: Survival one year after cardiac arrest in children after in-hospital cardiac arrest is high. Neurologic outcome of these children a year after cardiac arrest is mostly the same as after hospital discharge. The factors associated with a worst long-term neurological outcome are the etiology of arrest being a traumatic or neurologic illness, and the persistency of higher lactic acid values 24h after ROSC. A standardised basic protocol even practicable for lower developed countries would be a first step for the new multicenter studies.

Molecular cloning and characterization of two novel autophagy-related genes belonging to the ATG8 family from the cattle tick Rhipicephalus (Boophilus) microplus (Acari: Ixodidae).

Rhipicephalus (Boophilus) microplus is an obligate haematophagous arthropod and the major problem for cattle industry due to economic losses it causes. The parasite shows a remarkable adaptability to changing environmental conditions as well as an exceptional ability to survive long-term starvation. This ability has been related to a process of intracellular protein degradation called autophagy. This process in ticks is still poorly understood and only few autophagy-related (ATG) genes have been characterized. The aim of the present study was to examine the ESTs database, BmiGI, of R. microplus searching for ATG homologues. We predicted five putative ATG genes, ATG3, ATG4, ATG6 and two ATG8s. Further characterization led to the identification of RmATG8a and RmATG8b, homologues of GABARAP and MAP1LC3, respectively, and both of them belonging to the ATG8 family. PCR analyses showed that the expression level of RmATG8a and RmATG8b was higher in egg and larval stages when compared to ovary and midgut from adult ticks. This up-regulation coincides with the period in which ticks are in a starvation state, suggesting that autophagy is active in R. microplus.

Factores que influyen en la intensidad de los síntomas del tracto urinario inferior en pacientes con hiperplasia benigna de próstata / Factores that affect the intensity of the lower urinary tract symptoms in patients with benign prostatic hyperplasia

Objetivo: Determinar los factores que influyen en la intensidad de los síntomas del tracto urinario inferior (STUI) en pacientes con hiperplasia benigna de próstata en un hospital del Perú. Materiales y métodos: Se realizó un estudio transversal durante el año 2011 en 382 varones atendidos en el Hospital IV “Augusto Hernández Mendoza” de Ica. Mediante encuesta se recogió información sociodemográfica y se determinó la intensidad de STUI mediante el International Prostate Symptoms Score. Se aplicó chi cuadrado (X2) para valorar asociación entre variables cualitativas y se estimó el odds ratio(OR). Se realizó regresión logística para evaluar la probabilidad de tener STUI moderados/severos. Resultados:La prevalencia de STUI moderados/severos fue del 85,1%. El 41,1% eran diabéticos y el 80,4% eran hipertensos. La edad mayor o igual a 60 años, frente a edad menor de 60 años, presentó 2,63 veces más frecuencia de STUI moderados/severos (IC95%1,35-5,09), así como el nivel bajo de estudios, respecto al alto, (OR 2,45; IC95% 1,06-5,61), la diabetes (OR 2,17; IC95% 1,15-4,07), la hipertensión (OR 2,4; IC 95% 1,29- 4,47), la ingesta excesiva de alcohol al menos una vez al mes (OR 4,44; IC95% 2,47-7,99) y el consumo de al menos un cigarrillo diario (OR 3,42; IC95% 1,87-6,22). La prostatitis se asoció a una menor prevalencia de STUI moderados/severos (OR 0,36; IC95% 0,20-0,66). Conclusiones: La edad, el nivel bajo de estudios, la hipertensión, la diabetes, el consumo de alcohol y cigarrillos se asociaron con STUI más severos. (AU)

Objective: To determine the factors that influence the severity of lower urinary tract symptoms (LUTS ) in patients with benign prostatic hyperplasia in a hospital in Peru. Materials and methods: A cross-sectional study in 2011 on 382 men treated at the Hospital IV " Augusto Mendoza Hernandez " of Ica. Through survey collected sociodemographic information and intensity of LUTS was determined by the International Prostate Symptoms Score. Chi square ( X2 ) was used to assess association between qualitative variables and the odds ratio (OR) was estimated. Logistic regression was performed to assess the probability of having LUTS moderate / severe. Results: The prevalence of moderate / severe LUTS was 85.1 %.41.1% were diabetic and 8004 % were hypertensive. Greater than or equal to 60 years, compared with less than 60 years old, presented 2.63 times more frequently than moderate / severe (95% Cl 1.35 to 5.09) LUTS and the low level of education, compared to high (OR 2.45,95% Cl 1.06 to 5.61), diabetes (OR 2.17, 95% Cl 1.15 to 4.07), hypertension (OR 2.4,95 % 1,29 -4,47), excessive intake at alcohol at least once a month (OR 4044,95% (12-47 to 7.99) and consumption of at least one cigarette a day (OR 3.42; 95% Cl 1.87 to 6.22). Prostatitis was associated with a lower prevalence of LUTS moderate / severe (OR 0.36,95% Cl 0.20 to 0.66 ) . Conclusions: age, low education, hypertension, diabetes, alcohol and cigarettes were associated with more severe LUTS. (AU)

Epidemiological studies on dengue virus type 3 in Playa municipality, Havana, Cuba, 2001-2002.

OBJECTIVES: Recognizing the uniqueness of secondary dengue virus (DENV)-1/3 dengue hemorrhagic fever/dengue shock syndrome (DHF/DSS) cases at an interval of 24 years, we sought to estimate DENV infections as well as the ratios between mild disease and DHF/DSS by DENV infection sequence in Playa District (Havana, Cuba) during the 2001-2002 outbreak of dengue virus type 3 (DENV-3). METHODS: A retrospective seroepidemiological study was conducted in 2003 in Playa District. Blood samples were collected from a 1% random sample of residents and were studied for the prevalence of dengue neutralizing antibodies. RESULTS: DENV-3 was found to have infected 7.2% (95% confidence interval (95% CI) 6.0-8.4%) of susceptible individuals (the entire cohort), the majority of whom experienced silent infections. Virtually every individual who had a secondary infection in the sequence DENV-1 then DENV-3 became ill, with a ratio of severe to mild cases of 1:35 (95% CI 1:67-1:23). Secondary infections in the sequence DENV-2/3 were less pathogenic than DENV-1/3. Mild disease accompanying secondary DENV2/3 occurred at a ratio of 1:4.49 infections (95% CI 1:5.77-1:3.42) secondary infections. CONCLUSIONS: The results obtained highlight the role of the infecting serotype and also the sequence of the viral infection in the clinical outcome of a dengue infection.

Antiviral activity of Ageratina havanensis and major chemical compounds from the most active fraction

The antiviral activity of extracts obtained from Ageratina havanensis (Kunth) R.M.King & H.Rob., Asteraceae, against rabbit vesivirus (RaV) (Caliciviridae) and human herpes simplex viruses type 1 and 2 (HSV-1, HSV-2) (Herpesviridae) were analyzed, and the main metabolites from the most active extract were isolated and characterized. The antiviral properties were investigated by measuring the inhibition of viral-induced cytopathic effect in Vero cells. The strongest inhibitory effects were found for ethyl acetate extract from leaves (SI=5 for RaV and SI=5.4 for HSV-1). The crude ethyl acetate extract was further fractionated by chromatographic methods and the structures of isolated compounds were established through comprehensive spectroscopic analyses, including IR, 2D NMR and MS. Four flavonoids were identified: 5,4'-dihydroxy-7-methoxyflavanone (sakuranetin), 3,5,4'-trihydroxy-7-methoxyflavanone (7-methoxyaromadendrin), 4'-O-β-D-glucosyl-5,3'-dihydroxy-7-methoxyflavanone (4'-O-β-D-glucosyl-7-methoxy-eriodictyol) and 4'-O-β-D-glucosyl-5-hydroxy-7-methoxyflavanone (4'-O-β-D-glucosylsakuranetin). This is the first report on antiviral activity for Ageratina havanensis.